WO2010021318A1 - Head-feeding combine - Google Patents

Abstract

Disclosed is a head-feeding combine with improved lateral balance in the reaper and body. This combine is configured with a reaper (4), which is equipped with a right and a left divider (29, 30), and a center divider (31), which is disposed at a roughly central position between the right and left dividers (29, 30), whereby it is possible to harvest two rows of crops taken into the spaces between the right (left) and center dividers (29, 30). The positions of the right and left dividers (29, 30) are configured so as to be roughly the same as the positions of the right and left edges (1a, 2a) of right and left crawler running gear (1, 2) when viewed from the front. The distance (L5) in the lateral direction of the body between the center of the operator seat (13) in the lateral direction of the body and the center divider (31), and the distance (L6) in the lateral direction of the body between the shaft center (P1) of the rotary drive of the thresher drum (17) and the center divider (31) are set to be roughly the same.

Description

Self-removing combine

The present invention is a self-removal type (culm-head charging type) having a threshing device and a grain recovery unit on a machine body supported by right and left crawler travel devices, and a cutting part at the front of the machine body. About combine. The present invention particularly relates to the overall arrangement of such a combine, but is not limited thereto.

Some self-detaching combines have a structure as disclosed in Patent Document 1, for example.
That is, in Patent Document 1, right and left dividers (4A and 4C in FIGS. 1, 2, and 3 of Patent Document 1, center divider (4B in FIGS. 1, 2, and 3), right and center dividers, The raising device (3 in FIGS. 1, 2 and 3) provided between the left and middle dividers (3 ′ in FIGS. 1, 2 and 3). The cutting part is equipped. The right divider position and the right end of the right crawler travel device (6 in FIG. 2) are configured to be located at substantially the same position when viewed from the front, and the left divider position and the left crawler travel device ( The left end of 6) in FIG. 2 is configured to be located at substantially the same position in front view.
In Patent Document 1, the central divider is displaced from the central portion of the cutting unit in the left-right direction of the machine body to the left divider side, and the spacing between the right and central dividers is greater than the spacing between the left and central dividers. Is set to a large one. With this, one planting line is inserted between the left and center dividers to reap the crop, and two planting lines are inserted between the right and center dividers to reap the crop. .
By placing the right (left) divider position and the right end (left end) of the right (left) crawler travel device at approximately the same position when viewed from the front, the middle split operation (such as cutting the center of the field) In the state, it is configured to be able to perform the state that there are uncut crops on both the right and left of the cutting part (at the right end (left end) of the right (left) crawler traveling device during the middle split operation , Do not step on uncut crops).

Japanese Patent Publication No.57-12562 (JP-B-57-012562)

In a self-removing combine, it is a common configuration to cut a crop by inserting a planting line between adjacent dividers. On the other hand, in Patent Document 1, two planting strips are inserted between the right and center dividers to reap crops, and a large number of planting strips are formed by a small number of dividers and pulling devices. It is intended to harvest the crop.
In Patent Document 1, when the position of the right (left) divider and the right end (left end) of the right (left) crawler travel device are arranged at substantially the same position in a front view, The center divider is displaced from the center to the left divider side. Thereby, there is room for improvement in terms of the left-right balance of the cutting part and the aircraft.
In the self-detaching combine, the present invention provides a cutting unit in which the right (left) divider position and the right (left) crawler travel device right end (left end) are arranged at substantially the same position in front view. The purpose is to improve the left and right balance of the aircraft.

In order to achieve the above object, a first characteristic configuration of the present invention is as follows. Ie:
A self-detaching combine equipped with a threshing device and a grain recovery unit on the aircraft supported by the right and left crawler traveling devices, and a cutting unit at the front of the aircraft,
A right and left divider, a central divider provided at a substantially central position between the right and left dividers, a pulling device provided between the right and central dividers, and the left and central A raising device provided between the dividers of
Two cutting lines are inserted between the right and center dividers to allow crop cutting, and two planting lines are inserted between the left and center dividers to enable crop cutting. Parts
The position of the right divider and the right end of the right crawler travel device are located at substantially the same position in front view, and the position of the left divider and the left end of the left crawler travel device are substantially the same position in front view. Configured to be located in
The threshing device is provided with a handling cylinder that is rotationally driven around an axis in the longitudinal direction of the machine body, and the threshing device and the driver's seat are arranged in the horizontal direction of the machine body,
A space in the left-right direction of the fuselage between the center of the driver seat in the left-right direction of the fuselage and a central divider, and a distance in the left-right direction of the fuselage between the shaft core and the central divider in which the handling cylinder is driven to rotate. A self-removing combine that is set to be almost the same.

According to this characteristic configuration, when the right (left) divider position and the right end (left end) of the right (left) crawler traveling device are provided at substantially the same position in front view, the right and left dividers A central divider is provided at a substantially central position between them (a central divider is provided at a substantially central position between the right and left crawler travel devices). Two cropping lines are inserted between the right and center dividers to allow crop cropping, and two planting strips are inserted between the left and center dividers to enable crop cropping. Yes.

As a result, approximately the same amount of crops can be harvested in the right and left parts of the harvesting part (the amount of crops to be harvested is not biased to one side in the right and left parts of the harvesting part) The right and left balance of the part will be good.
In this case, since the position of the right (left) divider and the right end (left end) of the right (left) crawler traveling device are provided at substantially the same position when viewed from the front, Split work can be done without any problem.
By providing a central divider at a substantially central position between the right and left crawler traveling devices, the central position in the horizontal direction of the cutting unit and the central position in the horizontal direction of the right and left crawler traveling devices are Since it will be in the state located in the substantially same position visually, the balance between a cutting part and an airframe (right and left crawler travel device) will become a good thing.
In the self-detaching combine, on the rear side of the cutting part, the threshing device is provided with a handling cylinder that is driven to rotate around the longitudinal axis of the machine body, and the threshing apparatus and the driver seat are arranged side by side in the machine body left-right direction. There are many.
According to the first characteristic configuration of the present invention, the space between the center of the driver's seat in the left-right direction of the fuselage and the center divider, and the distance between the shaft core and the center divider where the handling cylinder is driven to rotate. Since the distance between the left and right sides of the fuselage is set to approximately the same value, the left / right balance of the fuselage due to the driver's seat (driver) and the handling cylinder becomes small (driver's seat (driver) and the handling cylinder). The balance between the left and right sides of the aircraft will be better.

Therefore, by providing the right (left) divider position and the right end (left end) of the right (left) crawler travel device at substantially the same position when viewed from the front, it is possible to perform the mid-split operation without any trouble. The left and right balance of the cutting part and the aircraft can be improved, and the balance between the cutting part and the aircraft (right and left crawler travel device) can be improved. Stabilization was achieved.

The second feature configuration of the present invention that can be added to the first feature configuration is as follows:
A transmission case for transmitting power to the right and left crawler travel devices and the cutting unit is provided behind the central divider at the front between the right and left crawler travel devices. The engine is installed on the driver's seat side with respect to the mission case. A support frame for supporting the mowing unit on the machine body is provided on the threshing device side with respect to the mission case.

According to this characteristic configuration, when a transmission case is provided that transmits power to the right and left crawler traveling devices and the cutting unit, the transmission case is located behind the central divider at the front portion between the right and left crawler traveling devices. As a result, the mission case is positioned approximately in the middle between the right and left crawler travel devices, so the left-right balance of the aircraft due to the mission case is reduced. Will be good).
When the transmission case is provided behind the central divider at the front between the right and left crawler traveling devices as described above, according to the second feature of the present invention, the engine is provided on the driver seat side with respect to the transmission case. The threshing device is provided with a support frame for supporting the mowing part on the machine body with respect to the mission case.
As a result, the weight of the engine is applied to the driver's seat side in the fuselage, and the weight of the cutting part (support frame) is applied to the threshing device side. (The engine and the cutting part (support frame) make the aircraft have a good left / right balance).
Therefore, the left and right balance of the airframe can be improved by the transmission case, the engine and the cutting part (support frame), and the running performance can be stabilized.

Other characteristic configurations, effects and advantages to be achieved in the future will be clarified by reading the following description with reference to the accompanying drawings. In the following description, the self-removing combine is also simply referred to as “combine”.

FIG. 10 is a left side view of the self-removing combine according to the first embodiment of the present invention (hereinafter the same as in FIG. 9). Fig. 4 is a right side view of the combine. These are top views of a combine. These are front views of a combine. FIG. 3 is a longitudinal front view of the vicinity of a horizontal frame, right and left packers, and right and left scraping devices of a cutting unit. These are the top views of the vicinity of the right and left packers of the cutting part, the right and left scraping devices, the nipping and locking conveying devices. These are the top views which show the positional relationship of the right and left of a cutting part, the center divider (divider frame), a support frame, a mission case, and the right and left crawler traveling apparatuses. These are top views which show the positional relationship of the right and left of a cutting part, the center divider, and the right and left crawler traveling apparatus in a middle split operation | work. These are the top views which show the positional relationship of the right and left of a cutting part, the center divider, and the right and left crawler traveling apparatus in a turn cutting operation. These are the whole left view of the combine (henceforth the same as FIG. 29) by 2nd Embodiment of this invention. Fig. 4 is an overall right side view of the combine. These are the whole top views of a combine. FIG. 3 is an overall front view of the combine. These are the schematics which show the transmission structure of a combine. These are the left view of a cutting part. These are the right view of a cutting part. These are the cross-sectional top views of the principal part of a cutting part. These are the longitudinal cross-sectional front views of the principal part of a cutting part. These are the longitudinal back views of the principal part of a cutting part. These are the vertical right side views of the principal part of a cutting part. These are the longitudinal cross-sectional front views of the principal part which shows the structure of a pulling-up apparatus. These are the cross-sectional top views of the principal part which shows the structure of a rake conveyance apparatus. These are the cross-sectional top views of the principal part which show the structure of a pick-up conveyance apparatus and a supply conveyance apparatus. These are the schematic plan views of the principal part which shows the working state of 4 row cutting. These are the schematic top views of the principal part which shows the operation state of a 3 line cutting. These are the perspective views of the principal part which show the attachment structure by the side of the weed terminal part of a left weed fence. These are the top views of the principal part which shows the state which switched the left branch weed basket to the stowage attitude | position. These are the left views of the cutting part which show another form of a cutting part. These are the front views of the cutting part which show another form of a cutting part. These are the longitudinal cross-sectional side views of the threshing apparatus in 3rd Embodiment (following, it is the same also to FIG. 41) of this invention. FIG. 3 is a vertical side view of a handling cylinder. FIG. 32 is a sectional view taken along arrow XXXII-XXXII in FIG. 31. [Fig. 4] is a development view of a barrel drum. FIG. 3 is a plan view of the inspection opening in a closed state. FIG. 35 is a cross sectional view taken along arrow XXXV-XXXV in FIG. 34. FIG. 3 is a plan view of a lid. FIG. 37 is a cross-sectional view taken along the line XXXVII-XXXVII in FIG. 36. These are top views in the inspection opening arrangement | positioning part of the handling cylinder for threshing apparatuses of another form 1. FIG. FIG. 39 is a sectional view taken along the arrow XXX IX-XXX IX in FIG. 38. These are top views in the inspection opening arrangement | positioning part of the handling cylinder for threshing apparatuses of another form 2. FIG. FIG. 41 is a cross-sectional view taken along the line XLI-XLI in FIG. 40. These are sectional drawings which show the comparative example with 3rd Embodiment of a cover attachment structure. These are sectional drawings which show the comparative example. These are the vertical side views of the threshing apparatus in the self-removing combine according to the fourth embodiment of the present invention (hereinafter the same as in FIG. 48). FIG. 3 is a vertical side view of a handling cylinder. [Fig. 3] is a longitudinal rear view of a handling cylinder. These are the longitudinal side views which show the structure of a shielding member. These are rear views which show the structure of a shielding member.

[First Embodiment]
First, the first embodiment will be described with reference to FIGS.

[1]
As shown in FIGS. 1, 2, and 3, in the body 3 supported by the right crawler traveling device 1 and the left crawler traveling device 2, the cutting unit 4 is supported at the front portion of the body 3 so as to be movable up and down. A self-removing type threshing device 5 is supported on the left side portion of the body 3, a driving unit 6 is supported on the front side of the right side portion of the body 3, and a hopper 7 (on the grain recovery unit) on the rear side of the right side portion of the body 3. Equivalent)) is supported, and the waste straw shredding device 8 is supported at the rear of the machine body 3 to constitute a self-removing combine. As shown in FIGS. 4 and 7, a transmission case 9 is provided between the right and left crawler traveling devices 1 and 2, is fixed to the body 3, and extends from the transmission case 9 to the right and left. The sprockets 1 b and 2 b of the right and left crawler traveling devices 1 and 2 are supported at the end of the case 10.

As shown in FIGS. 2 and 3, the engine 11 is supported on the right side portion of the transmission case 9 (the portion on the driver's seat 13) in the airframe 3, and the power of the engine 11 transmits a belt transmission (not shown). Is transmitted to the transmission case 9 through a hydrostatic continuously variable transmission (not shown) provided in the transmission case 9 and transmitted to the sprockets 1b and 2b of the right and left crawler travel devices 1 and 2. Is done. The power transmitted to the mission case 9 is transmitted to the cutting unit 4 via a belt transmission (not shown).

As shown in FIGS. 2, 3, and 4, the driving unit 6 is configured to cover the engine 11. A hood 12 covering the engine 11, a driver seat 13 supported on the upper part of the hood 12, a control part 14 provided on the front side of the hood 12, a side panel 15 provided on the left side of the hood 12, etc. Is configured. An operation lever 16 for performing the steering operation of the body 3 and the raising / lowering operation of the cutting unit 4 is provided in the control unit 14, and a shift lever 17 for shifting the hydrostatic continuously variable transmission is provided in the side panel 15.

As shown in FIGS. 1, 3, and 4, a handling cylinder 17 that is rotatable around an axis P <b> 1 in the longitudinal direction of the machine body, a receiving net 18 provided below the handling cylinder 17, and provided below the receiving net 18. The threshing device 5 is configured to include a sorting unit (not shown), a feed chain 19 and the like arranged along the handling cylinder 17. As shown in FIGS. 2, 3, and 4, a hopper 7 is supported on the right side of the threshing device 5 at the rear side of the driving unit 6 (driver's seat 13) in the right side portion of the body 3, and the hopper 7 can be opened and closed in two ways. A discharge port 7a is provided, and a conveying device 20 is connected across the first thing recovery part (not shown) of the threshing device 5 and the hopper 7, and a step 21 where the worker stands is provided. . An exhaust straw shredding device 8 is supported over substantially the entire width of the rear part of the machine body 3, and the waste straw shredding device 8 is configured to include a plurality of disk cutters (not shown).

As described in [4] described later, the crop stock harvested by the harvesting unit 4 is transferred to the feed chain 19, and the crop tip is inserted into the inlet 5a of the threshing device 5 in a sideways posture. The tip is threshed between the barrel 17 and the receiving net 18. Grains separated from the crop tips and leaked from the receiving net 18 are subjected to a sorting process by the sorting unit, and supplied to the hopper 7 from the No. 1 collection unit via the conveying device 20.
The operator standing at step 21 positions a collection bag (not shown) below the discharge port 7a of the hopper 7 and supplies the grains from the discharge port 7a of the hopper 7 to the collection bag. When the bag is full, the collection bag is closed and dropped to the field, the next collection bag is positioned below the discharge port 7a of the hopper 7, and the same operation as described above is performed.
The crop (waste straw) that has undergone the threshing process exits from the threshing device 5, is passed from the feed chain 19 to the waste straw chain (not shown), is supplied to the waste straw shredding device 8, and is shredded. Dropped on the field.

[2]
Next, in the cutting unit 4, the right, center and left dividers 29, 30, and 31, the cutting device 28, the right and left pulling devices 33 and 34, and the like will be described.
As shown in FIGS. 1, 2, and 3, a pipe-like support frame 22 swings up and down around an axis P <b> 2 in the left-right direction of the machine body 3 on the left side part (the part on the threshing device 5 side) of the mission case 9 in the machine body 3. A hydraulic cylinder 23 that is freely supported and moves up and down the support frame 22 is connected across the body 3 and the support frame 22.

As shown in FIGS. 1, 2, 3, and 7, a pipe-like horizontal frame 24 is fixed to the front portion of the support frame 22, and a right divider frame 25, a left divider frame 26, and a central divider are fixed from the horizontal frame 24. A frame 27 extends forward along the longitudinal direction of the fuselage, a right divider 29 is fixed to the front of the right divider frame 25, and a left divider 30 is fixed to the front of the left divider frame 26. Thus, the central divider 31 is fixed to the front portion of the central divider frame 27. A weed ridge 57 extends rearward from the left divider 30 and is configured to be freely operated in the acting posture and the standing retracted posture shown in FIGS. 1 and 3.

As shown in FIGS. 1, 2, and 7, a clipper type trimming device 28 is supported across the divider frames 25, 26, and 27 at the right, left, and center. As shown in FIGS. 3 and 4, on the front side of the reaping device 28, a right pulling device 33 is fixed between the right and center divider frames 25 and 27, and the left and center divider frames 26 and 27. A left pulling device 34 is fixed in between. As shown in FIGS. 1, 2, 3, and 4, an arch-shaped connecting member 32 is fixed over the upper portions of the right and left pulling devices 33 and 34, and extends between the central divider 31 and the connecting member 32. A round bar-shaped weeding member 35 is fixed.

As shown in FIG. 5, a transmission shaft (not shown) is built in the support frame 22, the power of the engine 11 is transmitted to the transmission shaft, and the transmission shaft is inserted into the horizontal frame 24. Is transmitted through a bevel gear 43 to a transmission shaft 44 built in the horizontal frame 24. As shown in FIGS. 5 and 7, a transmission shaft 48 is provided vertically on the horizontal frame 24, and the power of the transmission shaft 44 is transmitted to the transmission shaft 48 via the bevel gear 47. Is transmitted to the upper part of the right pulling device 33.

As shown in FIGS. 5 and 7, a pipe-like support frame 36 is fixed vertically to the left end of the horizontal frame 24 and is disposed so as to incline toward the center in the left-right direction of the fuselage. A transmission shaft 46 is housed in the support frame 36, and the power of the transmission shaft 44 is transmitted to the transmission shaft 46 via the bevel gear 45. The power of the transmission shaft 46 is transmitted to the upper part of the left pulling device 34. The The drive shaft 42 is supported vertically on the right end portion of the horizontal frame 24, and the power of the transmission shaft 44 is transmitted to the drive shaft 42 via the bevel gear 49, and the cutting device 28 is driven by the drive shaft 42.

As shown in FIG. 4, the right and left raising devices 33 and 34 include raising and lowering claws 33 a and 34 a that can be raised and lowered. Due to the power of the transmission shafts 46 and 48 (see FIG. 5), the raising claws 33a and 34a of the right and left raising devices 33 and 34, when viewed from the front (see FIG. 4), It protrudes downward from the vicinity of 30 and moves along the ground to the left and right center side (center divider 31 side) of the fuselage, and along the weeding member 35 from the vicinity of the center divider 31 in front view (see FIG. 4). It is rotationally driven so as to move upward.

[3]
Next, the right and left packers 37 and 38, the right and left scraping devices 39 and 40, the nipping and conveying device 53, the locking and conveying device 54, and the like in the cutting unit 4 will be described.
As shown in FIGS. 5 and 6, a right packer 37 and a left packer 38 are provided on the rear side of the right and left pulling devices 33 and 34, on the upper side of the horizontal frame 24 and the mowing device 28, On the upper side of the right and left packers 37 and 38, a right scraping device 39 and a left scraping device 40 are provided.

As shown in FIGS. 5 and 6, the cylindrical shaft 50 is fitted on the transmission shaft 48 so as to be relatively rotatable, and the right packer 37 is fixed to the lower portion of the cylindrical shaft 50, and is fixed to the support frame 36. The left packer 38 is rotatably supported by the support frame 51. The right and left packers 37 and 38 have a large gear shape in plan view (see FIG. 6) and are engaged with each other.

As shown in FIGS. 5 and 6, the right scraping device 39 includes a flat support plate 39 a that is externally fitted to the cylindrical shaft 50 so as to be rotatable relative to the cylindrical shaft 50, and a drive pulley fixed to the cylindrical shaft 50. 39b, a driven pulley 39c rotatably supported on the support plate 39a, a belt 39d wound around the driving and driven pulleys 39b, 39c, a number of scratching claws 39e provided on the belt 39d, and the like. Yes.

As shown in FIGS. 5 and 6, the left scraping device 40 is rotatable to a flat support plate 40 a fixed to the support frame 51, a drive pulley 38 a provided in the left packer 38, and a support plate 40 a. And the driven and driven pulleys 38a and 40b, a belt 40c wound around the driven pulleys 38a and 40b, a plurality of scraping claws 40d provided on the belt 40c, and the like.

As shown in FIG. 6, a round bar-shaped right guide member 55 is fixed to the center divider frame 27 and is extended to the rear side in a cantilever manner, and the rear portion of the right guide member 55 is a right scraping device 39. It is located above (scratching claw 39e). A round bar-shaped left guide member 56 is fixed to the center divider frame 27 and is extended to the rear side in a cantilevered manner, and the rear portion of the left guide member 56 is the left scraping device 40 (scratching claw 40d). Located on the upper side.

As shown in FIGS. 5 and 6, the power transmitted from the transmission shaft 48 to the upper portion of the right pulling device 33 is branched and transmitted to the upper portion of the cylindrical shaft 50, and the cylindrical shaft 50 is shown in FIG. It is rotated counterclockwise. Accordingly, the right packer 37 and the right scraping device 39 (belt 39d) are rotationally driven in the counterclockwise direction in FIG. 6, and the left packer 38 is interlocked with the right packer 37 in FIG. The left scraping device 40 (belt 40c) is rotationally driven in the clockwise direction in FIG.

As shown in FIGS. 1, 3, and 6, a holding and conveying device 53 is supported on the upper side of the support frame 22 along the front-rear direction of the machine body. The nipping and conveying device 53 includes a conveying chain 53a having a protrusion and a guide rail (not shown) arranged along the conveying chain 53a. The conveying chain 53a is driven to rotate counterclockwise in FIG. Is done.

As shown in FIGS. 1, 3, and 6, a locking and conveying device 54 is supported on the upper side of the nipping and conveying device 53 along the longitudinal direction of the machine body. The latching and conveying device 54 includes a latching claw 54a that can be raised and lowered, and a guide rail (not shown) arranged along the latching claw 54a, and the latching claw 54a is a counterclockwise surface of FIG. It is rotationally driven in the direction.

[4]
Next, the flow of harvesting crops in the harvesting unit 4 will be described.
As shown in FIG. 3 and FIG. 6, the crop stock entering between the right and middle dividers 29, 31 is caused by the right pulling device 33, while the crop stock source is the right packer 37 and the right While being fed toward the right guide member 55 by the scraping device 39 (scratching claw 39e), the stock of the crop is cut by the cutting device 28. While the crop that has entered between the left and center dividers 30 and 31 is pulled up by the left pulling device 34, the stock of the crop is the left packer 38 and the left scraping device 40 (scratching claw 40d). Thus, the stock of the crop is cut by the cutting device 28 while being sent toward the left guide member 56.

As shown in FIGS. 3 and 6, the crops sent between the right packer 37 and the right scraping device 39 (scratching claw 39e) and the right guide member 55, as well as the left packer 38 and the left The crops sent between the scraping device 40 (scratching claw 40d) and the left guide member 56 merge between the right and left packers 37, 38, and the right and left scraping devices 39, 40, the stocks of the joined crops are passed to the start end of the holding and transporting device 53, and the tips of the joined crops are passed to the starting end of the locking and transporting device 54.
The crops are transported to the rear side while being changed to the sideways posture by the holding and locking conveyance devices 53 and 54, and the stock of the crops in the sideways posture is passed to the start end of the feed chain 19, and the above item [1] As described, the threshing device 5 threshes the crop.

As shown in FIG. 1 and FIG. 6, the clamping and locking conveyance devices 53 and 54 are integrally supported so as to be swingable up and down with the terminal portions of the clamping and locking conveyance devices 53 and 54 as fulcrums. Further, by swinging up and down the locking and conveying devices 53 and 54, the position where the joined crops are clamped and received by the locking and conveying devices 53 and 54 can be changed along the cocoon length direction, and the feed chain The position of the stock of the crop received by 19 can be changed along the cocoon length direction. An electric motor (not shown) that swings up and down the holding and locking conveyance devices 53 and 54 is provided, and a position sensor 52 that detects the position of the tip of the crop is sandwiched and locked conveying devices 53 and 54. Is provided.

Accordingly, the clamping and locking conveyance devices 53 and 54 are automatically swung up and down by the electric motor based on the detection of the position sensor 52, and the position of the crop stock received by the feed chain 19 is along the cocoon length direction. Thus, regardless of the length of the crop, the length of the crop entering the threshing device 5 from the feed chain 19 is maintained at a set value (crop handling depth control).

[5]
Next, in the cutting unit 4, the positional relationship between the right and left scraping devices 39 and 40, the clamping and locking conveying devices 53 and 54, and the like will be described.
As shown in FIG. 6, in the cutting unit 4, the right and left packers 37, 38 and the right and left scraping devices 39, 40 are arranged substantially symmetrically, while being held and locked and conveyed. The devices 53 and 54 are arranged in a deviated manner on the left side of the mowing unit 4 (on the side opposite to the operation unit 6) (the threshing device 5 side). As shown in FIG. 5, the right and left packers 37 and 38 are disposed at substantially the same height, whereas the right scraper 39 is disposed at a higher position than the left scraper 40. ing.

In plan view (see FIG. 6), an angle A11 between the trajectory on the front side of the scraping claw 39e of the right scraping device 39 and the central divider frame 27, and a scraping claw 40d of the left scraping device 40 The angle A11 and the angle A12 are substantially the same, and the angles A11 and A12 are close to 90 ° at the angle A12 between the front trajectory and the center divider frame 27. As a result, the trajectory on the front side of the raking claw 39e of the right raking device 39 and the trajectory on the front side of the raking claw 40d of the left raking device 40 are in a state along the left-right direction of the body. It is in a state along the horizontal frame 24.

In plan view (see FIG. 6), the angle A1 (the sum of angles A11 and A12) between the trajectories on the front side of the scraping claws 39e and 40d of the right and left scraping devices 39 and 40, and the left scraping The angle A1 is larger than the angle B1 at an angle B1 between the passing trajectory on the front side of the scraping claw 40d of the device 40 and the passing trajectory on the front side of the transport chain 53a of the clamping transport device 53. As described in [4] above, when the up / down swinging operation of the clamping and locking conveyance devices 53 and 54 is performed and the crop handling depth control is performed, the angle B1 changes. However, the angle A1 is larger than the maximum value of the changing angle B1 (the maximum value of the changing angle B1 is smaller than the angle A1).

As shown in FIG. 5 and FIG. 6, the front side of the claw claws 39e and 40d of the right and left scoring devices 39 and 40 by increasing the angle A1 (angles A11 and A12) and decreasing the angle B1. The length in the longitudinal direction of the machine body from the passing trajectory to the terminal portions of the clamping and locking conveyance devices 53 and 54 is shortened, and the length of the cutting part 4 in the longitudinal direction of the machine body is shortened.
When the angle B1 is small, the starting end portions of the clamping and locking conveyance devices 53 and 54 approach the operation unit 6 (the front portion 15a of the side panel 15). In this case, the front portion 15a of the side panel 15 is cut obliquely, and the starting end portions of the clamping and locking conveyance devices 53 and 54 enter without interfering with the front side of the front portion 15a of the side panel 15.

The right and left pulling devices 33, 34 are triangular in the front view (see FIGS. 3 and 4) (compared to the lower portions of the right and left pulling devices 33, 34). (The point that the width in the left-right direction of the machine body is small at the upper part of the pull-up devices 33, 34), the point that the support frame 36 is arranged to be inclined toward the center side in the left-right direction of the machine body (see FIG. 5), The left end of the pulling device 34 on the left side (see FIG. 6) due to the fact that the starting end portions of the clamping and locking conveying devices 53 and 54 are close to the operating portion 6 (the front portion 15a of the side panel 6) (see FIG. 6). 3 and the right side of FIG. 4 and a left side (right side of FIG. 3 and FIG. 6) of the holding and locking conveyance devices 53 and 54, a relatively large space is formed.

Thus, when operating the weed fence 57 in the stowed stowed position, the weed fence 57 is cut into the stowed position by operating the weed fence 57 in the retracted position so as to sufficiently enter the aforementioned space. It will be in the state which does not come out to the left side from the part 4 very much.
Even in the state where the weed fold 57 is operated to the retracted position, the left side of the left pulling device 34 (the right side in FIG. 3 and FIG. 4) and the left side of the clamping and locking conveying devices 53 and 54 (FIG. 3). Since a relatively large space will be formed on the right side of the paper in FIG. 6, the pillow handling operation (the machine body 3 and the mowing unit 4 are stopped, the threshing device 5 and the feed chain 19 are operated, The worker who has already harvested the crops can easily carry out the threshing process of the crops by manually supplying the crops to the starting end of the feed chain 19.

[6]
Next, the positional relationship between the cutting unit 4 and each unit will be described.
As shown in FIGS. 3, 4, and 7, the position of the tip of the right divider 29 (right divider frame 25) and the right end 1 a of the right crawler traveling device 1 are viewed from the front (see FIG. 4). It is located at substantially the same position (or the position of the tip portion of the right divider 29 (right divider frame 25) in front view (see FIG. 4) rather than the right end portion 1a of the right crawler traveling device 1). It is located a little on the center side in the left-right direction of the aircraft). The position of the front end portion of the left divider 30 (left divider frame 26) and the left end portion 2a of the left crawler traveling device 2 are located at substantially the same position in front view (see FIG. 4).

As shown in FIGS. 3, 4, and 7, a central divider 31 is located at a substantially central position between the right and left dividers 29, 30, and tip portions (right and right) of the right and central dividers 29, 31 are located. The distance L1 between the center divider frames 25 and 27) in the left-right direction of the body and the distance L2 between the front ends of the left and center dividers 30 and 31 (left and center divider frames 26 and 27) in the left-right direction of the body. L1 and the distance L2 are substantially the same value. In plan view (see FIG. 6), the central divider frame 27 is located directly below the tips of the raising claws 33a, 34a of the right and left raising devices 33, 34.

As shown in FIGS. 4 and 7, a mission case 9 is provided at a substantially central position between the right and left end portions 1 a and 2 a of the right and left crawler traveling devices 1 and 2, and the right crawler traveling device 1. The distance L3 between the right end 1a and the transmission case 9 in the left-right direction of the aircraft and the distance L4 between the left end 2a of the left crawler travel device 2 and the transmission case 9 in the left-right direction of the aircraft are L3 and L4. The values are almost the same.

As shown in FIGS. 4 and 7, a mission case 9 is provided behind (directly behind) a central divider 31 (central divider frame 27).
As a result, the support frame 22 is provided on the left side portion of the mission case 9 (the portion on the threshing device 5 side), and the support frame 22 is fixed at a position offset to the left side from the central portion of the horizontal frame 24 in the left-right direction. It is in a state (a state in which the support frame 22 is fixed to a portion between the left and center divider frames 26 and 27 in the horizontal frame 24), and the entire center of gravity of the cutting unit 4 is located in the support frame 22. . The interval L1 and the interval L3 have substantially the same value, and the interval L2 and the interval L4 have substantially the same value.

As shown in FIG. 4, the distance L5 in the left-right direction of the aircraft between the central portion of the driver's seat 13 (driving unit 6) in the left-right direction of the aircraft and the central divider 31 (center divider frame 27) (mission case 9) The space L5 and the space L6 are substantially the same as the space L6 in the left-right direction of the fuselage between the shaft core P1 to which the handling cylinder 17 is rotated and the center divider 31 (center divider frame 27) (mission case 9). It is the same value.
The driver's seat 13 (seat portion of the driver's seat 13) and the inlet 5a of the threshing device 5 are located at substantially the same height when viewed from the front (see FIG. 4). The entrance 5a of the threshing device 5 is located next to (beside) 13 (the backrest portion of the driver's seat 13).

[7]
Next, the positional relationship between the cutting unit 4 and the field planting strip will be described.
As shown in FIGS. 8 and 9, it is assumed that crops C11, C12, and C2 are planted at an interval L7 (for example, about 300 mm). In this case, the intervals L1 and L2 are set to be larger than the interval L7 and slightly smaller than twice the interval L7.

As shown in FIG. 8, between the left and center dividers 30 and 31 so that the two planting strips D11 of the uncut crop C11 enter between the right and center dividers 29 and 31 in the middle operation. The position of the airframe 3 is set so that the two planting strips D11 of the uncut crop C11 are inserted into the plant, and the uncut crop C11 of the four planting strips D11 is set as described in [4] above. Harvested.

In the middle operation shown in FIG. 8, the tip of the right divider 29 and the right end 1a of the right crawler traveling device 1 are planted strips D11 of an uncut crop C11 to be cut and uncut crops that are not cut. The right crawler traveling device 1 does not step on an uncut crop C12 that is not mowed (the right end 1a of the right crawler traveling device 1 is located in the field). When the soil is pushed out to the right side, the soil in the field is not likely to stay at the stock of the uncut crop C12 that cannot be cut).

In the middle splitting operation shown in FIG. 8, the tip of the left divider 30 and the left end 2a of the left crawler traveling device 2 are planted strips D11 of an uncut crop C11 to be cut and uncut crops that are not cut. The left crawler traveling device 2 is not stepped on an uncut crop C12 that is not cut (the left end 2a of the left crawler traveling device 2 is located in the field). Even if the soil is pushed out to the left side, the soil in the field is rarely retained in the stock of the uncut crop C12 that cannot be cut off).

As shown in FIG. 9, in the turn-cutting operation (work for cutting the outer periphery of the crop in the field), the body 3 is arranged so that the tip of the right divider 29 is positioned on the planting strip D2 of the crop C2 that has already been cut. Set the position. As a result, one planting strip D11 of the uncut crop C11 enters between the right and center dividers 29 and 31, and two plantings of the uncut crop C11 between the left and center dividers 30 and 31. The strip D11 enters and the uncut crop C11 of the three planting strips D11 is cut off as described in [4] above.

9, the tip of the left divider 30 and the left end 2a of the left crawler traveling device 2 are planted with the planting strips D11 of the uncut crop C11 and the uncut crop that cannot be cut. The left crawler traveling device 2 is not stepped on an uncut crop C12 that is not cut (the left end 2a of the left crawler traveling device 2 is located in the field). Even if the soil is pushed out to the left side, the soil in the field is rarely retained in the stock of the uncut crop C12 that cannot be cut off).

[Another embodiment 1 of the first embodiment]
In the first embodiment described above, the position of the tip of the right divider 29 (right divider frame 25) is slightly more in front view (see FIG. 4) than the right end 1a of the right crawler travel device 1. You may comprise so that it may be located in the outer side of a body left-right direction. The position of the front end portion of the left divider 30 (left divider frame 26) is located slightly to the center side or outside in the left-right direction of the machine body in front view (see FIG. 4) from the left end portion 2a of the left crawler travel device 2. You may comprise.

[Another embodiment 2 of the first embodiment]
In the above-mentioned [First embodiment] [Another embodiment 1 of the first embodiment], a grain tank (not shown) (a grain collection unit) is provided instead of the hopper 7, and the grain is stored in the grain tank. An unloader (not shown) for discharging the grain of the grain tank may be provided.

[Another embodiment 3 of the first embodiment]
In the above-mentioned [First Embodiment] [Another Embodiment 1 of the First Embodiment] [Another Embodiment 2 of the First Embodiment], the operating portion 6, the hopper 7 (Glen tank), the engine 11 and the like are connected to the left side portion of the airframe 3. The threshing device 5, the feed chain 19, the support frame 22, the clamping and locking conveyance devices 53 and 54 may be provided on the right side portion of the machine body 3 to constitute a self-detaching combine.

[Second Embodiment]
Next, a second embodiment will be described with reference to FIGS.

10 is an overall left side view of the combine, FIG. 11 is an overall right side view of the combine, FIG. 12 is an overall plan view of the combine, and FIG. 13 is an overall front view of the combine. As shown in these drawings, the combine exemplified in this embodiment has an operation unit 102 formed on the front right side of the machine body 101. On the left side of the front part of the machine body 101, a reaping portion 103 for reaping and transporting grains C of crop C such as paddy rice and wheat during work traveling is connected to be swingable up and down. In the left half of the machine body 101, the threshing device that receives the harvested culm carried by the reaping unit 103, performs the threshing process on the harvested culm, and sorts the processed product obtained by the threshing process. 104 is mounted. The rear portion of the threshing device 104 is connected to a waste straw processing device 105 that discharges the waste straw that is the cereal meal after the threshing processing to the outside of the vehicle. On the right side of the rear part of the machine body 101, a hopper (in the grain recovery unit) that stores single-grained grains from the threshing device 104 conveyed by the lifting screw 106 and enables the stored single-grained grains to be packaged. Equivalent) 107 is mounted.

FIG. 14 is a schematic diagram showing the transmission configuration of the combine. As shown in FIG. 10 to FIG. 14, the fuselage 101 is a hydrostatic continuously variable transmission (hereinafter referred to as a power transmission) (hereinafter referred to as a continuously variable transmission) (hereinafter, referred to as a “hydrostatic continuously variable transmission”) that is integrated with a belt transmission 110 and a transmission case 111. HST (abbreviated as HST) 112, a traveling transmission system (not shown) provided in the transmission case 111, and the like are transmitted to a pair of left and right crawlers 113A and 113B provided at the lower part of the body frame 108. It is configured.

Although illustration or reference numerals are omitted, the body frame 108 connects a large number of reinforcing members and support members made of various steel materials to a base frame frame formed by a plurality of side members and cross members made of square pipes. It is configured. The engine 109 is water-cooled and is disposed together with a radiator on the right side portion of the front portion of the body frame 108. The mission case 111 has a left and right divided structure, and is disposed so as to be positioned on the right side of the vehicle body at the left and right center side portion of the front portion of the vehicle body frame 108. The mission case 111 includes a pair of left and right side brakes for braking the corresponding crawlers 113A and 113B. The HST 112 is located above the left case in the mission case 111, and transmits the power after shifting to the traveling transmission system for traveling. The traveling transmission system includes a pair of left and right side clutches that intermittently transmit power to the corresponding crawlers 113A and 113B. The left and right crawlers 113A and 113B are operated by the power transmitted through the corresponding side clutch, and are braked by the operation of the corresponding side brake. The left and right side clutches and side brakes are hydraulically operated.

Incidentally, the fuselage 101 is provided with a gear transmission in the transmission case 111 instead of the HST 112, and the power from the engine 109 is transmitted via the belt transmission 110, the gear transmission, the side clutch, and the like. It may be configured to transmit to the left and right crawlers 113A and 113B. Further, a sub-transmission device that shifts the power after shifting by the HST 112 may be provided in the traveling transmission system.

As shown in FIGS. 10 to 13, the driving unit 102 is provided with a front panel 114, a side panel 115, an engine cover 116, and the like on the right side of the front part of the vehicle body frame 108, and can get on and off from the right side of the vehicle body. It is formed so that Further, the right end portion is set so as to be located on the right outer side of the vehicle body with respect to the right end portion (end portion on the laterally outer side of the vehicle body) 113Ba of the right crawler 113B. The front panel 114 is equipped with a cross swing type and neutral return type control lever 117 and the like. The side panel 115 is equipped with a swinging type and position holding type transmission lever 118 and the like. The engine cover 116 is equipped with a driver seat 119.

15 is a left side view of the cutting unit 103, FIG. 16 is a right side view of the cutting unit 103, and FIG. 17 is a cross-sectional plan view of the main part of the cutting unit 103. As shown in FIGS. 10 to 17, the cutting unit 103 is provided with three dividers 121A to 121C and a pair of left and right pull-up members on a support frame (cutting frame) 120 that is connected to the front left side of the body frame 108 so as to be movable up and down. The apparatus 122A, 122B, a clipper type mowing device 123, a pair of left and right scraping and conveying devices 124A and 124B, a supply conveying device 125, and the like are provided. Then, the three dividers 121A to 121C are arranged at predetermined intervals in the left-right direction, and the corresponding right and left pulling devices 122A and 122B are arranged between two adjacent ones of the dividers 121A to 121C. Thus, a pair of left and right pulling frames 126A and 126B are formed at the front portion of the cutting portion 103.

The three dividers 121A to 121C are a left divider 121A located at the left end of the cutting part 103, a right divider 121B located at the right end of the cutting part 103, and a middle divider 121C located between them. Sometimes the grain culm of the crop C to be harvested is divided into the trigger frames 126A and 126B. The left and right pulling devices 122A, 122B cause crop culm introduced between the corresponding dividers 121A-121C. The reaping device 123 reaps the grain culm of the crop C caused by the left and right pulling devices 122A and 122B. The left and right scraping and conveying devices 124A and 124B scrape and convey the harvested culm toward the culm passing part 127 provided at the left and right central part of the reaping part 103, and pass the culm passing part 127 through. The supply transport device 125 receives the cereals that have passed through the cereal passer 127 from the left and right scraping transport devices 124A and 124B, and changes the posture of the received cereals from the standing posture at the time of receipt to the right-falling posture for threshing. While being fed toward the threshing device 104, the feed is carried.

As shown in FIG. 14, the power from the engine 109 is transmitted to the mowing unit 103 via the belt type transmission device 110, the input shaft 128 of the HST 112, the belt tension type mowing clutch 129, and the like.

Incidentally, although illustration is omitted, the power after shifting by the HST 112 may be transmitted to the cutting unit 103. Further, a gearbox dedicated to the harvesting conveyance is provided, and the power from the engine 109 is transmitted through the belt-type transmission 110, the input shaft 128 of the HST 112, the gearbox dedicated to the harvesting conveyance, the harvesting clutch 129, and the like. It may be configured to transmit to 103. Note that a gear-type transmission, an HST, or the like can be employed as a transmission dedicated for cutting and conveying.

As shown in FIG. 10, the cutting part 103 swings up and down by the operation of the lifting cylinder 130 installed over the body frame 108 and the support frame 120. A single-acting hydraulic cylinder is adopted as the lifting cylinder 130.

Although not shown, the control lever 117 is linked to the lifting cylinder 130 via a lifting / lowering hydraulic control system so that the operation of the lifting cylinder 130 is controlled based on the swinging operation in the front-rear direction. is there. Thus, by operating the control lever 117 to swing in the front-rear direction, the mowing unit 103 can be swung up and down over the lower limit side work area and the upper limit side non-work position. In the work area, the cutting height can be adjusted by adjusting the height position of the cutting device 123 with respect to the crop C to be harvested by moving the cutting unit 103 up and down.

Further, the control lever 117 is controlled via a steering hydraulic control system so that the operation of the left and right side clutches and the side brake according to the operation direction is controlled based on the swing operation in the left and right direction. It is linked to the left and right side clutches and side brakes. The shift lever 118 is linked to the shift operation shaft of the HST 112 via a linkage mechanism so that the HST 112 operates based on the swing operation. Accordingly, by swinging the speed change lever 118, the left and right crawlers 113A and 113B can be switched steplessly between a stopped state, a forward drive state, and a reverse drive state. In each of the forward drive state and the reverse drive state, the drive speeds of the left and right crawlers 113A and 113B can be changed steplessly. Then, in the forward drive state or the reverse drive state, by swinging the control lever 117 in the left-right direction, the traveling state is changed to the straight-ahead state in which the left and right crawlers 113A and 113B are driven at a constant speed, and the left and right crawlers by clutch operation. It is possible to switch between a slow turning state in which 113A and 113B are differentiated and a sudden turning state in which the left and right (turning inside) crawlers 113A and 113B are braked.

As shown in FIGS. 10 to 13, in the threshing device 104, the holding and conveying mechanism 131 provided on the left side thereof is located on the left outer side of the left side of the crawler 113A (the end on the lateral side of the vehicle body) 113Aa. It is set to be located on the side. In addition, the nipping and transporting mechanism 131 receives the grain source side of the cereal that has been conveyed from the reaping unit 103 in a right-tilt posture, and the reaping side of the cereal is supplied to the inside of the threshing device 104. The cereals from 103 are nipped and conveyed toward the rear waste straw processing apparatus 105. And although illustration is abbreviate | omitted, the threshing process provided to the inside of the threshing device 104 by the threshing processing is performed on the tip side of the cereal pod supplied to the inside by the handling cylinder provided in the threshing device 104, etc. The sorting process is applied to the processed product obtained by the threshing process. The single grain obtained by this sorting process is collected in the No. 1 recovery unit and conveyed toward the lifting screw 106 by the No. 1 screw. Unseparated grains etc. are collected in the No. 2 recovery unit, transported to the No. 2 reduction device by the No. 2 screw, re-threshed in the No. 2 reduction device, and then subjected to the re-sorting process by the sorting mechanism. As described above, the sheet is conveyed toward the sorting mechanism by the second reduction device. Dust such as cut straw and straw waste is discharged out of the vehicle through a dust outlet formed at the rear end of the threshing apparatus 104. The threshing device 104, the handling cylinder, the sorting mechanism, the first screw, the second screw, the second reduction device, and the like provided in the threshing device 104 are transmitted together with the lifting screw 106 via the threshing clutch or the like. Operates with power from.

As shown in FIG. 10, the waste straw processing apparatus 105 receives the waste straw carried out from the threshing apparatus 104 by the pinching transport mechanism 131 and transports it backward by the waste straw transport mechanism 132 provided in the upper part thereof. Although not shown in the figure, the long straw discharge state in which the waste straw is released outside the vehicle with a long length, and the shredder that shreds the waste straw with the disc cutter provided inside, and the fine waste that is discharged outside the vehicle. It is configured such that the discharge state of the waste straw discharger can be switched to the disconnected state. The waste straw transport mechanism 132 and the disc cutter are operated by the power from the engine 109.

18 is a longitudinal front view of the main part of the cutting part 103, FIG. 19 is a vertical rear view of the main part of the cutting part 103, and FIG. 20 is a vertical right side view of the main part of the cutting part 103. As shown in FIGS. 10 to 20, the support frame 120 includes a left and right connecting member 133 connected to the airframe 101 at the rear end thereof. The connecting member 133 is made of a round pipe material or the like so as to be a rocking fulcrum when the mowing unit 103 is rocked up and down. The connecting member 133 is connected with an extending member 134 that extends toward the front lower side of the machine body 101 along the longitudinal direction of the vehicle body. An intermediate member 135 located at the bottom of the cutting portion 103 is connected to the extending end of the extending member 134 in the left-right direction. The intermediate member 135 is formed at a position on the left side of the left and right intermediate portion so that a connecting portion 135A for the extending member 134 extends from the back surface to the rear of the vehicle body along the front-rear direction of the vehicle body. . A left divider 121A is connected to the left end portion of the intermediate member 135 so that the front side thereof extends forward of the vehicle body along the longitudinal direction of the vehicle body. Further, a support member 136 that supports the left pulling device 122A is provided upright. The right divider 121B is connected to the right end portion of the intermediate member 135 so as to extend toward the front of the vehicle body along the longitudinal direction of the vehicle body. An intermediate divider 121C is connected to the left and right intermediate portions of the intermediate member 135 so as to extend toward the front of the vehicle body along the longitudinal direction of the vehicle body.

In the connection member 133, an input shaft 138 that rotates integrally with the output pulley 137 of the reaping clutch 129 is provided. Inside the extending member 134, a transmission shaft 140 that interlocks with the input shaft 138 via a pair of bevel gears 139 is provided. The intermediate member 135 includes a forward-rearward-facing relay shaft 142 that is linked to the transmission shaft 140 via a pair of bevel gears 141, a power distribution shaft 144 that is linked to the relay shaft 142 via a pair of bevel gears 143, and the like. is there. The support member 136 includes a left transmission shaft 146 that is linked to the power distribution shaft 144 via a pair of bevel gears 145. A right transmission shaft 148 that interlocks with the power distribution shaft 144 via a pair of bevel gears 147 is erected on the right end portion of the intermediate member 135 toward the right pulling device 122B.

As shown in FIGS. 15 to 19, the left divider 121A is made of sheet metal to the front end of an L-shaped left weed pipe 149A connected to the left end of the intermediate member 135 via a left weed support rod 150A. By connecting the left weeding tool 151 </ b> A, it is configured to be positioned at the left end of the cutting unit 103. The right divider 121B connects the right weeding tool 151B made of sheet metal to the front end of the right weed pipe 149B connected to the right end of the intermediate member 135 through the right weed support rod 150B, thereby cutting the cutting part 103. It is comprised so that it may be located in the right end part. The middle divider 121C is connected to the front end portion of the middle weed pipe 149C connected to the left and right middle portions of the intermediate member 135 by connecting the middle weed tool 151C made of sheet metal via the middle weed support rod 150C, thereby cutting the cutting portion. 103, so that the middle weed tool 151C is located at a substantially left and right middle position between the left weed tool 151A and the right weed tool 151B. The dividers 121A to 121C are arranged at predetermined intervals in the left-right direction so that a maximum of two crops C can be introduced between two adjacent dividers 121A, 121C or 121B, 121C. It is. In addition, when the cutting unit 103 is positioned in the work area, the posture is set to be a horizontal posture or a substantially horizontal posture.

FIG. 21 is a longitudinal front view of the main part showing the configuration of the pulling devices 122A and 122B. As shown in FIG. 10 to FIG. 21, the left and right pulling devices 122A and 122B are configured to be symmetrical. More specifically, the left and right pulling devices 122A and 122B include input shafts 153A and 153B on top of the pulling cases 152A and 152B. Inside the pulling cases 152A and 152B, there are driving sprockets 154A and 154B that rotate integrally with the input shafts 153A and 153B, tension sprockets 155A and 155B adjacent to the lateral sides of the driving sprockets 154A and 154B, and pulling cases 152A and 152B. The first guide rollers 156A and 156B and the second guide rollers 157A and 157B disposed at the lower portion, and endless chains 158A and 158B that are swung over them are provided. Each endless chain 158A, 158B is provided with a plurality of raising claws 159A, 159B arranged at a constant pitch. The pulling claws 159A and 159B have a retracted posture in which their free ends are located inside the pulling cases 152A and 152B, and an action posture that extends outward from the pulling cases 152A and 152B and acts on the crop C. Oscillate around the connecting pins 160A and 160B that connect the endless chains 158A and 158B to the fulcrum. Between the first guide rollers 156A and 156B and the second guide rollers 157A and 157B, first guide rails 161A and 161B that hold the raising claws 159A and 159B in a downward acting posture are provided. Between the second guide rollers 157A and 157B and the drive sprockets 154A and 154B, second guide rails 162A and 162B for holding the pulling claws 159A and 159B in a lateral action posture are provided.

The left pulling device 122A has its input shaft 153A interlocked with the left transmission shaft 146 via a pair of bevel gears 163. By this interlocking, the endless chain 158A rotates clockwise in a front view. By this rotation, each pulling claw 159A moves from the left end side of the cutting portion 103 toward the left and right center side in the area Aa1 held in the downward acting posture by the first guide rail 161A. The culm of up to two crops C introduced between the divider 121 </ b> A and the middle divider 121 </ b> C is raked and guided toward the left and right center side of the cutting unit 103. Moreover, in area | region Aa2 hold | maintained by the 2nd guide rail 162A at a horizontal action attitude | position, it moves toward the upper part from the lower end part of raising case 152A, and causes the grain culm of crop C after rake guidance by this movement .

The input shaft 153B of the right pulling device 122B is linked to the right transmission shaft 148 via the chain transmission mechanism 164 and the pair of bevel gears 165. By this interlocking, the endless chain 158B rotates counterclockwise when viewed from the front. By this rotation, each pulling claw 159B moves from the right end side of the cutting part 103 toward the left and right center side in the region Ab1 where the first guide rail 161B is held in the downward acting posture. The culm of up to two crops C introduced between the divider 121 </ b> B and the middle divider 121 </ b> C is driven into the left and right central sides of the cutting unit 103 and guided. Further, in the region Ab2 that is held in the lateral action posture by the second guide rail 162B, it moves from the lower end portion of the pulling case 152B toward the upper portion, and this movement causes the culm of the crop C after the rake guidance. .

In other words, the right and left pulling devices 122A and 122B have a plurality of pulling claws 159A and 159B provided to the harvesting parts of the crop C introduced between corresponding ones of the three dividers 121A to 121C. 103, guide areas Aa1 and Ab1, which are guided to the left and right central sides, and cause areas Aa2 and Ab2 which cause culling of the crop C which has been guided to the left are formed.

The left pulling device 122A is operated by the power transmitted from the input shaft 138 of the cutting unit 103 via the transmission shaft 140, the relay shaft 142, the power distribution shaft 144, the left transmission shaft 146, and the like. By operation, it is configured to cause a maximum of two crop C culms introduced between the left divider 121A and the middle divider 121C.

The right pulling device 122B is transmitted from the input shaft 138 of the cutting unit 103 via the transmission shaft 140, the relay shaft 142, the power distribution shaft 144, the right transmission shaft 148, the chain transmission mechanism 164, and the like. It operates by power, and is configured to cause a maximum of two crop C culms introduced between the right divider 121B and the middle divider 121C.

Accordingly, the left and right pull-up frames 126A and 126B can be configured for two lines that cause a maximum of two grain culms, and the cutting portion 103 can be configured with a pair of right and left pull-up frames 126A and 126B. It can be configured in a 2-frame 4-strip cutting specification for harvesting. As a result, compared with a general three-frame four-line mowing specification that is configured to harvest up to four crops C with four dividers and three pulling devices, the same wide work It is possible to simplify the configuration and reduce the cost while configuring to have a width.

In addition, while the guide areas Aa1 and Ab1 and the raising areas Aa2 and Ab2 are formed in the left and right pulling devices 122A and 122B, the structure is simplified, and the four-row crop grain is achieved. Can cause wrinkles smoothly and well.

In addition, the archless structure that does not require the installation of a heavy shaft transmission mechanism for interlockingly connecting the input shafts 153A and 153B provided on the upper parts of the right and left pulling devices 122A and 122B over the upper part of the left and right pulling devices 122A and 122B. As a result, the center of gravity position of the reaping portion 103 can be lowered as compared with the case where an arch structure in which an axial transmission mechanism is installed over the upper portions of the left and right pulling devices 122A and 122B is adopted. The stability of the vehicle body can be improved.

By the way, although illustration is omitted, when an archless structure is adopted for the cutting part of the three-frame, four-saw cutting specification, the transmission system for the pulling device disposed on the left and right center side of the cutting part is provided below the grain passage It is necessary to deploy at the bottom of the left and right center side of the cutting part. If the transmission system is arranged in such a position, foreign matters such as mud and weeds are likely to accumulate on the transmission system case, and if the culm comes into contact with the accumulated foreign matter, the conveying posture of the cereal may be disturbed. Due to this disturbance, the alignment on the tip side when the supply and transport device 125 transports the cereal toward the threshing device 104 becomes worse. Then, in the case of the threshing process in the threshing apparatus 104, unhandled items are likely to occur, and the grain recovery efficiency is likely to be reduced.

On the other hand, since the cutting part 103 according to the present invention is a two-frame four-row cutting specification that does not require a pulling device on the left and right center sides while being a four-row cutting, it is a grain caused by the accumulation of such foreign matter. A drop in grain recovery efficiency can be avoided in advance.

As shown in FIGS. 15 to 17, FIG. 19, and FIG. 20, the lower part of the left raising case 152A is supported by the left weed pipe 149A via the left support member 166A. Further, the upper part is supported by the support member 136. The lower part of the right raising case 152B is supported by the right weed pipe 149B via the right support member 166B. Further, the upper part is connected to the upper part of the left pulling case 152A by an arch-like connecting member 167. That is, the upper part of the right pulling case 152B is supported by the support member 136 via the connecting member 167 and the left pulling case 152A. With these support structures, the right and left pulling devices 122A and 122B are mounted on the reaping portion 103 in a rearward tilted position located on the rear side of the vehicle body toward the upper side.

As the left and right pulling devices 122A and 122B, instead of the structure that forms the guide areas Aa1 and Ab1 by scraping and moving the plurality of pulling claws 159A and 159B in the left and right directions, as the vehicle body travels, You may make it employ | adopt the structure which forms the guidance area | region Aa1 and Ab1 with the guide member which raises the grain culm of the crop C, and slides and guides toward the area | region Aa2 and Ab2.

As shown in FIGS. 13 to 18, the reaping device 123 is supported by the weed pipes 149A to 149C of the dividers 121A to 121C. The plurality of movable blades 168 aligned and arranged so as to be continuously arranged in a straight line in the left-right direction on the upper side thereof, and the plurality of fixed blades arranged so as to be arranged in a straight line in the left-right direction on the lower side thereof The cereal of crop C caused by the left and right pulling devices 122A and 122B is cut by sliding back and forth with a fixed stroke in the left and right direction with respect to 169. Each movable blade 168 reciprocates with a fixed stroke in the left-right direction with respect to the fixed blade 169 by interlocking with the power distribution shaft 144 via a crank-type cutting blade driving device 170.

That is, the reaping device 123 is operated by the power transmitted from the power distribution shaft 144 of the reaping portion 103 via the cutting blade driving device 170, and this operation causes the crop C crop caused by the left and right pulling devices 122A and 122B. It is configured to reap cocoons.

FIG. 22 is a cross-sectional plan view of the main part showing the configuration of the pick-up and transport apparatuses 124A and 124B, and FIG. 23 is a cross-sectional plan view of the main part showing the structures of the pick-up and transfer apparatuses 124A and 124B and the supply transfer apparatus 125. As shown in FIGS. 14 to 19, 22, and 23, the left and right scraping and transporting devices 124 A and 124 B are belt-type scraping and transporting mechanisms 171 A and 171 B that act on the upper part of the cereal stock side. And packers 172A, 172B as rotating bodies that act on the lower part of the grain stock side of the cereal and are arranged up and down, and between them, the scraper transport mechanisms 171A, 171B and packers 172A, 172B Guide members 173A and 173B for guiding the cereals into the scraping conveyance area are provided. The left and right scavenging and transporting mechanisms 171A and 171B are composed of rubber scraping belts 174a and 174b, in which a plurality of projecting portions 174a and 174b for scraping transport are integrally formed at a fixed pitch, and large driving pulleys 175A and 175B. The small pulleys 176A and 176B are configured to rotate around. Covering the driving pulleys 175A and 175B and the driven pulleys 176A and 176B from above along the belt sides of the scraping belts 174a and 174b are provided above the left and right scraping and transporting mechanisms 171A and 171B. Covers 177A and 177B for preventing the wrapping of the cereals with respect to the The left and right packers 172A and 172B are integrally formed with a plurality of projecting portions 172A and 172B for scraping and transporting at the outer periphery thereof.

The left scraping and transporting device 124A has an L-shaped support shaft 178 so that the driving pulley 175A and the packer 172A of the scraping and transporting mechanism 171A are positioned in a rotatable state on the left and right center side of the cutting unit 103. It is made to support by the support member 136 via. Further, the left auxiliary member 179A integrally provided at the left end portion of the left support member 166A so that the driven pulley 176A of the scraping transport mechanism 171A is positioned at the front end of the vehicle body relative to the drive pulley 175A at the left end portion of the cutting portion 103. Is supported.

The right scraping and transporting device 124B is connected to the cylindrical shaft 180 that is externally fitted to the right transmission shaft 148 so that the driving pulley 175B and the packer 172B of the scraping and transporting mechanism 171B are positioned on the left and right center side of the cutting unit 103. Equipped. That is, the right transmission shaft 148 and the cylinder shaft 180 function as a support member that supports the drive pulley 175B and the packer 172B of the scraping transport mechanism 171B. Further, the right auxiliary member 179B integrally provided at the right end portion of the right support member 166B so that the driven pulley 176B of the scraping conveyance mechanism 171B is positioned at the front end of the vehicle body with respect to the driving pulley 175B at the right end portion of the cutting portion 103. Is supported.

With this support structure, the left and right scraping and transporting devices 124A and 124B have the postures of the scraping and transporting mechanisms 171A and 171B in the state where the cutting unit 103 is positioned in the work area. The mowing unit 103 is equipped with a tilted posture that is located closer to the rear of the vehicle body toward the center side, and is a rearwardly tilted posture, and the postures of the packers 172A and 172B are rearwardly tilted.

As a result, the left and right scraping / conveying devices 124A and 124B are arranged on the left and right sides of the cutting unit 103 by the protruding portions 174a and 174b of the scraping belts 174a and 174b and the protruding portions 172A and 172B of the packers 172A and 172B. The harvested cereals located in the transport area are raked toward the cereal passing part 127 while being lifted by receiving from the lower sides of the left and right outer sides. The pestle passing portion 127 is scraped into the cereal passage passing portion 127 while receiving and lifting the cocoon from the front lower side. The grain passing section 127 is allowed to pass through by scraping toward the supply and transport device 125 located at the rear.

As a result, when scraping and transporting the culm after harvesting by the left and right scooping and transporting devices 124A and 124B, it is possible to make the stocker side of the culm difficult to contact the reaping device 123. Due to the contact, the conveying posture of the cereal is disturbed, and due to the disturbance, the alignment of the tip side when conveying the cereal toward the threshing device 104 by the supply conveying device 125 becomes worse, and the threshing in the threshing device 104 It is possible to avoid a drop in the grain recovery rate such that unhandled items are likely to occur in the process.

The left-side scraping / conveying device 124A is integrally formed with the driving pulley 175A and the packer 172A so that the driving pulley 175A and the packer 172A of the scraping / conveying mechanism 171A rotate integrally. The right-hand drive mechanism 124B connects the drive pulley 175B and the packer 172B to the tube shaft 180 so that the drive pulley 175B and the packer 172B of the drive device 171B rotate together with the tube shaft 180. is there. The cylindrical shaft 180 is interlocked with the right transmission shaft 148 via a gear type reduction mechanism 181. The left packer 172A meshes with and interlocks with the right packer 172B.

In other words, the left and right scraping and conveying devices 124A and 124B are operated by the power transmitted from the right transmission shaft 148 via the speed reduction mechanism 181 and the cylinder shaft 180, and this operation allows the harvested rice straw to be removed from the left and right packers. It is configured such that it is scraped and conveyed toward the culm passing part 127 that is the meshing part of 172A and 172B, and is scraped and conveyed from the culm passing part 127 toward the rear feeding and conveying device 125.

As shown in FIG. 10, FIG. 12, FIG. 13 to FIG. 16 and FIG. 23, the supply / conveyance device 125 is configured so that the left and right scraping / conveying devices 124A and 124B The stock source holding and transporting mechanism 182 that holds the stock side and transports it toward the holding and transporting mechanism 131 of the threshing device 104, and the head side of the cereal basket is locked and transported toward the supply port 104A of the threshing device 104. The tip locking and conveying mechanism 183 is arranged vertically. The stock holding / carrying mechanism 182 and the tip locking / conveying mechanism 183 are configured such that the transmission shaft 184 that functions as an input shaft thereof is linked to the input shaft 138 of the cutting unit 103 via a pair of bevel gears 185, thereby The cereals that have passed 127 are configured to be supplied and conveyed toward the threshing device 104 while changing the posture from the standing posture to the right-falling posture for threshing.

The supply / conveyance device 125 is configured to be able to swing up and down about the input shaft 138 of the cutting unit 103 located at the conveyance terminal end 125a. And by this up-and-down swing, the conveyance start end part 125b can be position-adjusted in the cocoon length direction with respect to the culm that has passed through the culm passing part 127. The supply length of the tip side with respect to the inside of the threshing apparatus 104 can be changed, and the handling depth adjustment for adjusting the handling depth of the cereal by the threshing apparatus 104 can be performed.

The cutting portion 103 is provided with a guide rod 186 that swings and guides the conveyance start end portion 125 b of the supply conveyance device 125 in the vertical direction while suppressing the horizontal movement of the supply conveyance device 125. The guide rod 186 is curved and formed in an arc shape around the swing fulcrum of the supply / conveyance device 125.

The supply and transport device 125 is configured such that the feed and transport device 125 swings up and down with the input shaft 138 of the mowing unit 103 as a fulcrum, so that the transport start end portion 125b of the supply and transport device 125 and the cereal passing portion 127 are moved. It is equipped with adjusting means 187 for adjusting the position in the cocoon length direction with respect to the passed cereal. In addition, a support frame 190 is provided that supports the pinching guide bar 189 of the stock holding pinch transport mechanism 182 across the grain haul transport path 188 of the supply transport device 125.

The adjusting means 187 is driven by a pinion gear (not shown) provided on an output shaft (not shown) of the electric motor 191 and a sector gear 192 meshing with the pinion gear by the operation of the electric motor 191 provided on the cutting unit 103. Thus, by swinging the swing arm 193 provided integrally with the sector gear 192, the supply and transport device 125 linked to the swing arm 193 via the suspension rod 194 is swingably driven in the vertical direction. is there.

The support frame 190 is provided with a tip sensor 195 that detects the tip position of the cereal that is transported by the supply transport device 125. The tip sensor 195 includes a pair of sensor arms 196A and 196B. The pair of sensor arms 196 </ b> A and 196 </ b> B are arranged so as to be positioned at a predetermined interval in the cocoon length direction on the tip side of the grain pod that is conveyed by the supply conveyance device 125. The tip sensor 195 then outputs the tip position of the cereal detected by the pair of sensor arms 196A and 196B to a control device 197 configured using a microcomputer. The control device 197 handles the operation of the electric motor 191 of the adjusting means 187 based on the output of the tip sensor 195 so that the length of the tip of the cereal supplied to the inside of the threshing device 104 is constant. Control means 197A for adjusting the depth is provided. In the control means 197A, the sensor arm 196A located on the stock side of the grain pod detects the ear side of the grain straw and the sensor arm 196B located on the ear side of the grain straw does not detect the ear side of the grain straw By controlling the operation of the electric motor 191, the length of the tip side of the corn straw supplied to the inside of the threshing device 104 is made constant.

Although illustration is omitted, the pair of sensor arms 196A and 196B are configured so as to be able to integrally change the position in the cocoon length direction with respect to the culm conveyed by the supply conveyance device 125. And by this position change, the position of both sensor arms 196A, 196B is changed to the stockholder side of the cereal, and the culm that feeds the handling depth of the cereal by the threshing device 104 into the threshing device 104 It can be adjusted to the shallow handling side to shorten the tip length. In addition, by changing the position of both sensor arms 196A, 196B to the tip side of the culm, the handling depth of the culm by the threshing device 104 is increased and the tip length of the culm that is supplied to the inside of the threshing device 104 is increased. It can be adjusted to the deep handling side.

As shown in FIG. 10 to FIG. 12, FIG. 15 and FIG. 16, the tip sensor 195 is equipped with an operation lever 198 that enables the position changing operation of the pair of sensor arms 196A, 196B. The operation lever 198 is arranged and set so as to be located at a position close to the operation unit 102 in the tip sensor 195. Thereby, the operation lever 198 can be operated while being in the driving unit 102, and the handling depth of the cereal by the threshing device 104 can be adjusted.

As shown in FIGS. 17, 18, and 22, in the harvesting unit 103, the middle divider 121 </ b> C is positioned between the valley diameters da and db of the left and right packers 172 </ b> A and 172 </ b> B that are within the left and right width of the grain passer 127. It is arranged to do.

This arrangement prevents the pestle from straddling the middle divider 121C when transporting the cereal after harvesting by the left and right scraping and transporting devices 124A and 124B toward the pestle passing portion 127. can do. As a result, compared to the case where the cereals straddle the middle divider 121C, the stocker side of the cereal can be made less likely to contact the middle divider 121C, and thereby, the contact posture of the cereals is disturbed by the contact. Due to this, the grain on the tip side when the supply and transport device 125 transports the cereal toward the threshing device 104 becomes worse, and the cereals that are left unhandled in the threshing process in the threshing device 104 are likely to occur. A decrease in the grain recovery rate can be avoided in advance.

In addition, as described above, the left and right scraping and conveying devices 124A and 124B are arranged such that the postures of the scraping and conveying mechanisms 171A and 171B are the left and right of the cutting unit 103 when the cutting unit 103 is positioned in the work area. As the center side is in a tilted position that is located rearward and in a back-up tilted position, and the postures of these packers 172A and 172B are in a back-up tilted position, the cutting unit 103 is placed in the work area. With respect to the middle divider 121C that is in a horizontal posture or a substantially horizontal posture when being positioned, the lower side in the transport direction is separated from the middle divider 121C upward. Thereby, it is possible to prevent the culm that is scraped and conveyed toward the culm passing part 127 by the left and right scooping and conveying devices 124A and 124B from coming into contact with the middle divider 121C in the culm passing part 127, As a result, it is possible to prevent a decrease in the grain recovery rate due to the disturbance in the posture of the grain straws caused by the contact.

FIG. 24 is a schematic plan view of a main part showing a working state of four-line cutting, and FIG. 25 is a schematic plan view of a main part showing a working state of three-line cutting. As shown in FIGS. 12, 13, 24, and 25, the left divider 121A located at the left end of the mowing unit 103 (the left and right side ends of the mowing unit 103 away from the driving unit 102) and the left side (driving) The crawler 113A on the side away from the section 102 is arranged so that the positions of the weed starting end 121Aa of the left divider 121A and the left end 113Aa of the left crawler 113A in the left-right direction of the vehicle body coincide. Also, the right divider 121B located at the right end of the cutting unit 103 (one left and right side end on the driving unit side in the cutting unit 103) and the right crawler 113B on the right side (driving unit side) are the right end 113Ba of the right crawler 113B. In a state where the weed start end 121Ba of the right divider 121B slightly protrudes to the right outside of the vehicle body, the position of the right weave start end 121Ba of the right divider 121B and the right end portion 113Ba of the right crawler 113B in the left-right direction of the vehicle body is It arrange | positions so that it may correspond substantially.

In other words, the left and right crawlers 113A and 113B have a distance L between the end portions on the laterally outer side of the vehicle body larger than the working width W of the reaping portion 103 configured to enable reaping and conveying up to four strips. In this way, they are arranged at a predetermined interval in the left-right direction. As a result, the distance between the left and right crawlers 113A and 113B can be increased, and the wetland performance can be improved without causing a decrease in turning performance by increasing the contact length of each of the crawlers 113A and 113B. it can.

Further, the left crawler 113A is prevented from protruding to the left side of the vehicle body from the grass start end 121Aa because the position of the left end 113Aa coincides with the grass start end 121Aa of the left divider 121A in the left-right direction. . As a result, the left crawler can be used during the operation such as turning around where the uncut crop Cx is present on the left outer side of the machine body 101 and the middle cutting where the uncut crops Cx and Cy are present on the left and right outer sides of the machine body 101. 113A causes an inconvenience such as stepping on an uncut crop Cx located near the left outer side, or mud approaching an uncut crop Cx located near the left outer side by the left crawler 113A. It is possible to prevent the deterioration of work efficiency due to the trampling and mud gathering.

On the other hand, the right crawler 113B has its right end portion 113Ba substantially coincided with the weed start end 121Ba of the right divider 121B in the left-right direction, so that uncut crops Cx, Cy are present on the left and right outer sides of the body 101. During the operation such as the middle split, the weed start edge 121Ba of the right divider 121B is between the rightmost crop Cb within the work width of the cutting unit 103 and the crop Cy outside the work width adjacent to the crop Cb. If it is set to pass near the crop Cb within the working width, it is possible to prevent the occurrence of inconvenience such as stepping on the uncut crop Cy located near the right outside by the right crawler 113B, A reduction in work efficiency due to trampling can be avoided.

Incidentally, the length Lz of the right crawler 113B that protrudes from the starting edge 121Ba of the right divider 121B to the right outer side of the vehicle body can prevent the right crawler 113B from stepping on the uncut crop Cy near the right outer side of the vehicle body. If it is a length, for example, it can be set to various lengths such as Lz = 1/3 * Sc and Lz = 1/4 * Sc from the relationship with the planting interval Sc of the crop C. Lz ≦ 1/6 * Sc is preferable. And as the protrusion length Lz is shorter, mud gathering with respect to the uncut crop Cy near the right outer side of the vehicle body by the right crawler 113B can be suppressed, and reduction in work efficiency due to the mud gathering can be suppressed. be able to. Conversely, the longer the protrusion length Lz, the longer the distance between the left and right crawlers 113A and 113B, and the wet paddy performance can be improved.

That is, it is configured as a full hunt specification that can prevent the left and right crawlers 113A and 113B from stepping on the uncut crops Cx and Cy and mud approaching to the uncut crops Cx and Cy during work such as turning and middle cutting. can do.

The right crawler 113B is arranged such that the right end portion 113Ba of the right crawler 113B coincides with the weed start end 121Ba of the right divider 121B in the left-right direction, or is located on the vehicle body inward side of the weed start end 121Ba of the right divider 121B. May be. Further, the left crawler 113A may be arranged so that the left end portion 113Aa thereof is located on the inner side of the vehicle body from the weed starting end 121Aa of the left divider 121A. The left end 113Aa of the left divider 121A is located on the left outer side of the body of the left divider 121A within a range in which it is possible to prevent the uncut crop Cx from being stepped on and to suppress mud approach to the uncut crop Cx. You may arrange in.

As shown in FIG. 24, the three dividers 121A to 121C are arranged so that the right divider 121B is used when the four crops C are harvested. When the position is aligned with respect to the crop C so as to pass close to the crop Cb within the work width between the crop Cb and the crop Cy or crop cut Cz outside the right work width adjacent to the crop Cb. The middle divider 121C passes through the middle position or the substantially middle position of the two crops Cc and Cd located on the left and right center sides within the work width to be acted on, and the left divider 121A The position between the leftmost crop Ca within the working width and the crop Cx outside the left working width adjacent to the crop Ca or the crop cutting trace Cz is closer to the crop Ca within the working width than the intermediate position between them. It is arranged so as to pass through the.

That is, at the time of the four-row cutting work, the crop that is positioned at the front right and lower side of the driving unit 102 so that the weed starting end 121Ba of the right divider 121B with high visibility from the driving unit 102 is positioned at the rightmost in the working width. By aligning so as to pass near the right side of Cb, the left divider 121 </ b> A and the middle divider 121 </ b> C having low visibility from the driving unit 102 by moving away from the driving unit 102 can be used without cropping them. Therefore, it is possible to avoid pushing down and stepping on the crop C by the dividers 121A and 121C.

As a result, even if the crop C is severely laid down, each of the dividers 121A to 121B can be easily and reliably aligned with an appropriate position with respect to the crop C, and each of the dividers 121A to 121B and the right and left pulling devices 122A can be aligned. , 122B can be efficiently caused.

In addition, the middle divider 121C passes through the middle position or the substantially middle position of the two crops Cc and Cd located on the left and right center sides within the work width, thereby introducing the two strips introduced into the frame of the left raising frame 126A. Grains of crops Ca and Cc and two grains of crops Cb and Cd introduced into the right elevating frame 126B are sandwiched between the grains passing portion 127 located right above the middle divider 121C. It can be located in the left-right symmetric position, and the distance from the grain passing part 127 of the grain target used as the right-and-left object can be shortened uniformly.

Thereby, while the grain culm of two crops C is introduced into the left and right pull-up frames 126A and 126B, the middle divider 121C has two crops Cc and Cd positioned on the left and right center side within the work width. By greatly deviating from the intermediate position, the distance from the culm passing portion 127 of the cereal introduced into one of the left and right pull-up frames 126A, 126B becomes unnecessarily long, and either the left or the right streak conveying device It can prevent that the conveyance efficiency of the grain straw by 124A, 124B falls. Further, it is possible to prevent an unnecessary delay from being caused in the transportation of the cereal by either the left or right scraping and conveying device 124A, 124B. The apparatus 125 prevents the reduction of the grain recovery rate such that the alignment of the tip side when conveying the cereal toward the threshing apparatus 104 becomes worse, and unhandled items are easily generated in the threshing process in the threshing apparatus 104. be able to.

In addition, when the left divider 121A passes near the left side of the leftmost crop Ca within the work width, and when the work travels to harvest the four crops C, the weed start edge 121Ba of the right divider 121B is always set. Therefore, it is necessary to perform alignment so as to pass near the right side of the crop Cb located at the rightmost position within the working width.

This ensures that the dividers 121A to 121C can be surely passed through the above-mentioned appropriate positions with respect to the crop C at all times during the operation for harvesting the four crops C. As a result, the four crops C It is possible to improve the workability during the traveling of the harvesting.

As shown in FIG. 25, the three dividers 121A to 121C are arranged such that the right divider 121B and the grass start end 121Ba corresponding to the right divider 121B during the operation of harvesting the three crops C are the rightmost crop within the working width of the cutting unit 103. When aligned with the right crop harvest mark Cz so as to pass above the right crop harvest mark Cz adjacent to Cb, the middle divider 121C has the right side within the working width to be acted upon. And the left divider 121A, which is the target of action, passes through a position closer to the crop Cc on the left and right center side than the right crop Cb between the two crops Cb and Cc located on the left and right center side. It is arranged to pass through an intermediate position or a substantially intermediate position between the leftmost crop Ca in the work width 103 and the crop Cx or the crop cut Cz outside the left work width adjacent to the crop Ca. .

In other words, during the three-row cutting operation, the weed starting end 121Ba of the right divider 121B with high visibility from the driving unit 102 passes through the upper portion of the right cutting mark Cz by being positioned in front of and below the driving unit 102. The left divider 121 </ b> A and the middle divider 121 </ b> C having low visibility from the driving unit 102 by moving away from the driving unit 102 can be appropriately removed from the planting position of the crop C without performing the visual recognition thereof. It is possible to pass through the position, and it is possible to avoid pushing down and stepping on the crop C by the dividers 121A and 121C.

As a result, even if the crop C is severely laid down, the right divider 121B and the middle divider 121C can be easily and reliably aligned at appropriate positions with respect to the crop C. The dividers 121A to 121B and the left and right pulls are raised. It is possible to efficiently cause the culm by the devices 122A and 122B.

Further, the middle divider 121C passes near the right side of the crop Cc located on the left and right center side within the work width, so that the grain of the two crops Ca and Cc introduced into the frame of the left raising frame 126A. Among the grains of one crop Cb introduced into the frame of the right pulling frame 126B, the grain Ca of the left crop Ca that is the farthest from the grain passer 127 located directly above the middle divider 121C In addition, the distance from the cereal basket passing part 127 can be made the shortest.

Thereby, it is possible to improve the transport efficiency when the left and right scraping and transporting devices 124A and 124B scrape and transport the three cereals toward the culm passing portion 127. Further, it is possible to prevent an unnecessary delay from being caused in the transportation of the cereal by either the left or right scraping and conveying device 124A, 124B. The apparatus 125 prevents the reduction of the grain recovery rate such that the alignment of the tip side when conveying the cereal toward the threshing apparatus 104 becomes worse, and unhandled items are easily generated in the threshing process in the threshing apparatus 104. be able to.

Moreover, the left divider 121A passes through an intermediate position or a substantially intermediate position between the crop Ca located at the leftmost position within the work width and the crop Cx or the crop cutting mark Cz outside the left work width. At the time of working to harvest the crop C, the left divider 121A having the lowest visibility from the driving unit 102 is positioned at the farthest position within the working range from the planting position of the crop C to be acted on. be able to.

As a result, the left divider 121A having the lowest visibility from the driving unit 102 can be made to act well on the target crop C during the operation of harvesting the three crops C, and the left divider 121A It can prevent more reliably that it is located in the planting position of the crop C of action object.

Incidentally, the specific arrangement of the three dividers 121A to 121C to satisfy the positional relationship between the above three dividers 121A to 121C and the crop C is as follows: the left and right intervals Sa and Sb of the three dividers 121A to 121C and the crop C The relationship with the planting interval Sc is such that Sa = Sb = 1.75 * Sc, Sa = Sb≈1.75 * Sc, or Sa> Sb and Sa≈1.75 * Sc and Sb An arrangement in which ≈1.75 * Sc, an arrangement in which Sa ≦ Sb and Sa≈1.75 * Sc and Sb≈1.75 * Sc are conceivable. During the operation of harvesting the four crops C, the separation distance La between the left divider 121A and the leftmost crop Ca within the work width located on the right side thereof is the work located on the right divider 121A and the left side thereof. It is preferable that the distance is larger than the distance Lb from the rightmost crop Cb in the width.

As shown in FIGS. 12, 13, and 17, the left and right dividers 121A and 121B are inclined so that the postures of the weeds 151A and 151B are positioned closer to the vehicle inner side in the vehicle left-right direction toward the rear of the vehicle. It is comprised so that it may become. Thereby, the crops Ca and Cb positioned at the left and right end portions within the work width of the mowing unit 103 can be easily moved toward the left and right centers within the work width.

As shown in FIG. 10 to FIG. 13 and FIG. 15 to FIG. 18, at the front end in the left-right direction of the cutting unit 103, there are a left weed cocoon 199A, a right weed cocoon 199B, And a middle weed basket 199C located at the center of the right and left of the weed basket 199B.

As shown in FIGS. 10, 12, 13, and 15, the left weed fence 199 </ b> A has an action posture tilted so as to project to the left outward of the body 101 on the left side of the cutting unit 103, and the body side It is equipped so that the posture can be changed by swinging to the retracted posture standing so as to be retracted. Then, by switching the left weed fence 199A to the action posture, it is possible to prevent the uncut crop Cx existing on the left outer side of the machine body 101 from inclining toward the inner side of the vehicle body.

FIG. 26 is a perspective view of the main part showing the attachment structure on the weed terminal end side of the left weed ridge 199A. As shown in FIG. 10, FIG. 12, FIG. 13, FIG. 15 and FIG. 26, the left weed culm 199A can swing its weed starting end 199a to the left weed cutting tool 151A via the first connecting part 200. It is connected to. Further, the extended end 201 a of the connecting rod 201 extending from the end portion of the weeds is connected to the support member 136 of the cutting unit 103 via the second connecting part 202 so as to be swingable.

The first connecting portion 200 includes an L-shaped bracket 203 welded to the left weeding tool 151A, and a connecting pin 204 that connects the bracket 203 with a weeding start end portion 199a of the left weeding rod 199A in a swingable manner. The connecting pin 204 is configured to be close to the left side portion of the left branching tool 151A.

The second connecting portion 202 includes a bracket 205 welded to the support member 136, a connecting pin 206 for swingably connecting the extended end portion 201a of the connecting rod 201 to the bracket 205, and a posture holding of the left weed rod 199A. It is constituted by a holding mechanism 207 that enables this. Then, by effectively utilizing the space existing immediately after the left end portion of the left pull-up frame 126A, the left end portion of the left crawler 113A on the left and right center side of the cutting portion 103 relative to the first connecting portion 200 It is arranged so as to be located on the left and right center side of the airframe 101 with respect to 113Aa.

The holding mechanism 207 has an arc-shaped long hole 205 a centering on the connecting pin 206 formed in the bracket 205, and after inserting the bolt 208 into the long hole 205 a, the compression spring 209 is attached to the insertion start end side of the bolt 208. The pair of nuts 210 are screwed together, and the extension end portion 201a of the connecting rod 201 and the bracket 205 are pressed by the action of the compression spring 209, whereby the left weed rod 199A along the long hole 205a. The left weed cage 199A is configured to hold the posture while allowing the swing operation between the action posture and the retracted posture.

With the above configuration, even if the second connecting portion 202 is configured to be large with the holding mechanism 207, the left end portion of the reaping portion 103 is positioned on the heel while the posture of the left weed pod 199A is switched to the retracted posture. In this case, it is possible to avoid the possibility that the second connecting portion 202 may be deformed by contact with other objects such as straw during the operation of harvesting the crop C at the time of drought. This is particularly effective in preventing the deformation of the second connecting portion 202 due to contact with the concrete block in a field where the ridges are formed lower by a concrete block or the like.

Further, the pivot axis P of the left weed shear 199A passing through the centers of the connection pin 204 of the first connection part 200 and the connection pin 206 of the second connection part 202 is closer to the rear side of the cutting part 103. As compared with the case where the swing axis P of the left weed basket 199A is set to a posture along the front-rear direction of the mowing unit 103, the left weed basket 199A is The operating angle when swinging between the retracted posture and the acting posture can be reduced, and the operability of the left bunting 199A can be improved.

FIG. 27 is a plan view of the main part showing a state in which the left bunting 199A is switched to the retracted posture. As shown in FIGS. 13 and 27, in the retracted posture, the left weed ridge 199A is in a state in which the weed end portion 199b is located on the left and right center side of the body 101 with respect to the left end of the cutting portion 103. The position in the left-right direction of the vehicle body of the weed terminal portion 199b and the left end of the cutting unit 103 is configured to be substantially the same.

As a result, the left weed culm 199A is in its retracted position with its weeding terminal end 199b positioned closer to the left and right center side of the body 101 than the left end 113Aa of the left crawler 113A. And the left end portion 113Aa of the left crawler 113A substantially coincide with each other in the left-right direction of the vehicle body.

That is, by switching the left weed basket 199A to the retracted position, the weed terminal end portion 199b of the left weed basket 199A is positioned at the left and right center of the body 101 more than the left end 113Aa of the left crawler 113A and the left end crawler 113A. As a result, the entire left branch weed 199A can be positioned on the left and right sides of the left and right outer sides of the nipping / conveying mechanism 131 located on the left outer side of the vehicle with respect to the left end 113Aa of the left crawler 113A. It can be located on the inner side of the vehicle body in the direction. As a result, compared with the case where the weed terminal end 199b of the left weed basket 199A is located on the left outer side of the vehicle body from the left outer end of the pinch transport mechanism 131, the left weed basket 199A is in the retracted position. The left and right widths of the combine as a whole in the switched state can be reduced, and the storage property for a barn or the like can be improved.

In the retracted posture, the left weed pod 199A is configured such that its weed terminal end portion 199b is positioned on the upper side of the vehicle body with respect to the grain culm conveyance path 188 of the supply conveyance device 125. Thereby, even in the state where the left weed pod 199A is switched to the retracted position, the cedar is directed toward the threshing apparatus 104 by the supply transport device 125 without contacting the weed terminal end portion 199b of the left weed pod 199A. Can be transported.

That is, there is a risk that the cereals conveyed by the supply conveyance device 125 may come into contact with the weed terminal end portion 199b of the left weed culm 199A even if the left side weed culm 199A is switched to the retracted posture. Can be avoided. As a result, cereals that the grain posture is disturbed due to the contact, the grain tip side of the grain is not aligned properly, and unhandled in the threshing process in the threshing device 104 is likely to occur. A decrease in the grain recovery rate can be avoided in advance.

In addition, in the state where the left weed basket 199A is switched to the retracted position, the entire left weed basket 199A is positioned on the inner side of the vehicle body in the left-right direction of the vehicle body with respect to the left outer end of the pinch transport mechanism 131 of the threshing device 104. By doing so, when performing work traveling at the shore, it is possible to perform the traveling while the vehicle body is closer to the heel, and the left divider 121A is easily aligned with the crop C at the shore. As a result, workability at the heel can be improved.

Also, for crop C, which is about 65-75 cm long and has a low risk of lodging, the left weed bud 199A should be switched to the retracted position so that the left weed shoot 199A does not act on the tip. Thus, the possibility that the left weed pod 199A acts as a weed on the cereal of the crop C can avoid the risk of detaching the grain from the cereal, and as a result, improving the grain recovery efficiency. it can. This is particularly effective when harvesting indica rice and the like that are easily shed.

As shown in FIG. 10 to FIG. 13 and FIG. 15 to FIG. 17, the middle pod 199C is positioned so as to be positioned at a substantially intermediate position between the left and right pulling devices 122A and 122B at the front end of the cutting unit 103. It is erected from the weeding tool 151C to the connecting member 167.

As a result, each pulling device 122A, 122B falls down toward the other pulling device 122A, 122B by the scraping action of the pulling claws 159A, 159B in the guide areas Aa1, Ab1 of the left and right pulling devices 122A, 122B. The cropping cereal of crop C that crosses in the vehicle body front view on the vehicle body front side of the raising areas Aa1 and Ab1 of 122B is caused by the weeding action of the middle weed culm 199C to cause the raising areas Aa1 of the corresponding raising devices 122A and 122B. , Ab1 can be divided into left and right.

As a result, the culm of the crop C to be harvested is caused by the scraping action of the pulling claws 159A and 159B in the guide areas Aa1 and Ab1 of the pulling devices 122A and 122B, in the raising regions Aa1 and Ab1 of the pulling devices 122A and 122B. At the front side of the vehicle body, it is possible to avoid the possibility of crossing and entangled in front view of the vehicle body, and it is possible to prevent crop culm caused by the entanglement and reduce the efficiency and cause the occurrence of defects.

As shown in FIGS. 12, 13, 17, 21, and 22, the two-row pulling device 122 </ b> B provided in the right pulling frame 126 </ b> B is located on the left side where the raising region Ab <b> 2 is separated from the driving unit 102. It is constituted as follows.

Thereby, compared with the case where the right pulling frame 126B is equipped with the two-row pulling device configured so that the raising region Ab2 is positioned on the right side which is the driving unit side, the driving unit 102 is directed to the front of the vehicle body. The visibility can be improved, and the visibility from the driving unit 102 to the work place in front of the vehicle body can be improved.

The left and right pulling devices 122A and 122B are formed so that the right and left widths Wa and Wb of the raising areas Aa2 and Ab2 are wide enough to correspond to the raising of two cereals. Further, the raising claws 159A and 159B provided in the left and right raising devices 122A and 122B are formed in a long length corresponding to the wide raising areas Aa2 and Ab2.

Thereby, the resistance when the grain passes through the corresponding right and left triggering areas Aa2 and Ab2 when the left and right pulling devices 122A and 122B always work on the four-row mowing that causes two grains each is allowed. Can be prevented. As a result, it is possible to smoothly and satisfactorily raise the cereal by the left and right pulling devices 122A and 122B even during the four-saw cutting operation.

In addition, by forming each pulling claw 159A, 159B in a length corresponding to the wide trigger areas Aa2, Ab2, the dead zone where the pulling claws 159A, 159B do not act on the cereal in the wide trigger areas Aa2, Ab2. Can be prevented from being formed. As a result, it is ensured that the left and right pulling devices 122A and 122B cause the culm to be caused by the left and right pulling devices 122A and 122B, while forming the raising regions Aa2 and Ab2 wide to allow the passage of the two ridges. Can be done.

By the way, regardless of the time when the three-row mowing operation is running or the time when the 4-row mowing work is running, only the left pulling device 122A to which two rows of cereals are always supplied is caused, and the left and right width Wa of the area Aa2 is increased. You may comprise so that it may become wide corresponding to the raise of a maximum of 2 grain ridges, and the raising nail | claw 159A may become long corresponding to the wide raising area | region Aa2.

As shown in FIGS. 11, 14, and 16 to 18, the cutting blade driving device 170 is disposed at the right end portion of the intermediate member 135 so as to be positioned at the right end of the cutting portion 103. As a result, there is an inconvenience that the harvested culms get entangled with the cutting blade driving device 170, which may be caused when the cutting blade driving device 170 is arranged on the left and right center side of the cutting portion 103, and the cutting blade driving device 170 is cut into the cutting portion. The uncut crop Cx is a cutting blade at the time of the work of the high-frequency cut operation in which the uncut crop Cx exists only on the left outer side of the machine body 101, which may be incurred when deployed at the left end of the machine 103. It is possible to avoid the occurrence of inconvenience associated with the drive device 170 in advance.

In addition, by disposing the supply conveying device 125 at a position on the left side of the reaping unit 103 so as to supply and convey the cereal squeezed and conveyed to the cereal passing unit 127 toward the threshing device 104 on the left side of the vehicle body, By arranging a relatively heavy weight blade driving device 170 at the right end of the mowing unit 103 whose left side is heavy, the left-right balance of the mowing unit 103 can be improved.

A sheet metal cover 211 that covers the cutting blade driving device 170 is provided at the right end of the cutting unit 103. The cover 211 uses the upper two bolts 212 among the three bolts 212 that connect the right divider 121B to the right end of the intermediate member 135, and the right branch weed 199B at the right end of the intermediate member 135. It is connected together with it.

As a result, during the middle work in which the uncut crop Cy is also present on the right outside of the machine body 101, the uncut crop Cy on the right outside of the vehicle body is driven by the right cutting blade 199B and the cover 211. The risk of getting entangled with the device 170 can be avoided.

Further, as compared with the case where the right divider 121B, the right bunting basket 199B, and the cover 211 are individually bolted to the right end portion of the intermediate member 135, the assembly can be improved. Moreover, when exchanging the right weed basket 199B and the cover 211, they can be exchanged while preventing the right divider 121B from being completely removed from the right end of the intermediate member 135.

As shown in FIGS. 11 to 13, the side frame 213 located at the right front end of the body 101 is inclined in the left-right direction of the vehicle body so that the front half approaches the right end 113Ba of the right crawler 113B toward the front end. I'm allowed. As a result, during the middle-running operation where uncut crops Cy are also present on the right outer side of the body 101, the outer surface 213a of the side frame 213 is placed on the uncut crops Cy on the right outer side of the vehicle body on the right outer side of the vehicle body. It can function as a guide surface for guiding. As a result, the lodging of the uncut crop Cy existing on the right outer side of the machine body 101 toward the inner side of the vehicle body can be prevented together with the right weed culm 199B.

By the way, in the left and right scraping and transporting devices 124A and 124B, the left and right scraping and transporting mechanisms 171A and 171B perform the scraping and transporting of the culm with the rubber scraping belts 174a and 174b, so In this case, the protrusions 174a and 174b of the scraping belts 174a and 174b are deformed by losing the strength of the culm before cutting, and until the culm is trimmed by this deformation, The cocoon is not scraped and conveyed toward the cereal basket passage part 127. In addition, by the operation traveling at this time, the cereal before cutting is pushed and bent toward the front of the vehicle body.

Then, when the cereals pushed and bent in this way reach the cutting position of the cutting device 123 and are cut, the restoring action of cutting back and returning to the straight state from the pushed and bent toward the front of the vehicle body As a result, it may jump out to the front side of the vehicle body away from the left and right scraping and transporting mechanisms 171A and 171B, deviate from the transporting area of the left and right scraping and transporting mechanisms 171A and 171B, and spill down to the front of the reaping device 12.

When such a phenomenon occurs, the cereals spilled to the front of the reaping device 12 are successively introduced to the transport areas of the left and right scraping transport mechanisms 171A and 171B as the work travels. The pestle is pushed back to the reaping position of the reaping device 12, and the stock side is reaped together with the unreached culms.

When such cereals are cut twice, the culm lengths of the cereals become uneven, and due to this unevenness, the alignment on the tip side when conveying the cereal toward the threshing device 104 becomes worse. Further, unhandled items are likely to occur during the threshing process in the threshing apparatus 104, and as a result, the grain recovery efficiency is likely to be reduced.

Therefore, as shown in FIG. 17, FIG. 18, FIG. 22 and FIG. 23, in this combine, the left and right scratch conveying mechanisms 171A and 171B in the left and right scratch conveying devices 124A and 124B are connected to their linear conveying paths 214A, The tilt angles θa and θb in the vehicle body left-right direction with respect to the vehicle body longitudinal direction of 214B are configured to be the same. In addition, the included angle θA between the straight conveyance path 214A of the left scratch conveyance mechanism 171A and the straight conveyance path 214B of the right scratch conveyance mechanism 171B is equal to the straight conveyance path 214A of the left scratch conveyance mechanism 171A and the supply conveyance device. The postures of the left and right scraping and transporting mechanisms 171A and 171B and the supply transporting device 125 are set so as to be larger than the sandwiching angle θB of the stock holding and transporting mechanism 182 with the straight transport path 215.

When the postures of the left and right scraping and transporting mechanisms 171A and 171B are set in this way, the plurality of movable blades 168 and the fixed blades 169 are arranged in a straight line in the left-right direction on the straight transport paths 214A and 214B above the reaping device 123. Are arranged so that they are arranged in a row in a straight line, so that the cutting positions of the movable blades 168 and the fixed blades 169 that are arranged in a straight line in the left-right direction are substantially along the cutting positions. Can be positioned at.

Thereby, it is possible to effectively suppress the left and right scooping and transporting devices 124A and 124B from acting on the cereal before cutting by the reaping device 123, and the left and right scavenging and transporting devices 124A and 124B can be prevented from being cut. The fall of the grain collection | recovery efficiency resulting from acting on a grain kernel can be suppressed effectively.

Moreover, the culm immediately after harvesting by the reaping device 123 can be quickly scraped and conveyed toward the culm passing portion 127 by the left and right scraping and transporting devices 124A and 124B. , 124B can improve the scraping and conveying efficiency of the cereal.

As shown in FIGS. 17 and 22, in the left and right scraping and conveying apparatuses 124 </ b> A and 124 </ b> B, the rotation of the left and right packers 172 </ b> A and 172 </ b> B corresponding to the guide members 173 </ b> A and 173 </ b> B from the left and right ends of the cutting unit 103 is performed. Straight guide portions 173A and 173B extending toward the center are provided. Each of the straight guide portions 173A and 173B is formed in a horizontal straight line perpendicular to the longitudinal direction of the vehicle body.

This prevents the straight guide portions 173A and 173B of the left and right guide members 173A and 173B from acting on the culm before cutting and pushing the culm toward the front of the vehicle body during work travel. it can. As a result, it is possible to avoid the possibility that the pushed and bent cereal is spilled to the front of the reaping device 12 and cut twice due to the restoring action from the pushed and bent state.

As shown in FIG. 12 and FIG. 23, the supply and transport device 125 has its transport posture set so that its transport start end portion 125b overlaps with the driving unit 102 when viewed from the front of the vehicle body. Thereby, the position of the cutting part 103 in the left-right direction of the vehicle body is aligned with the left end part 113Aa of the left crawler 113A and the left end part 113Aa of the left crawler 113A in accordance with the two-frame four-stripe specification. Since the position in the left-right direction of the vehicle body of the weed start end 121Ba and the right end portion 113Ba of the crawler 113B on the right side substantially coincides with each other, On the other hand, the conveyance start end part 125b of the supply conveyance apparatus 125 can be located in the position immediately after the grain pass part 127 which can receive the grain pass which passed the grain pass part 127 directly.

In other words, the reaping unit 103 configured to have a two-frame four-row cutting specification without equipping an auxiliary conveyance device that relays the delivery of cereals between the left and right scraping conveyance devices 124A and 124B and the supply conveyance device 125. A suitable supply conveyance structure can be obtained.

The operation unit 102 has a recess 102a that allows the conveyance start end portion 125b of the supply conveyance device 125 to enter the front end portion of the side panel 115 that overlaps the conveyance start end portion 125b of the supply conveyance device 125 in a front view of the vehicle body. .

The supply conveyance device 125 has an inclination angle θc in the lateral direction of the vehicle body of the linear conveyance path 215 of the stock holding and conveying mechanism 182 with respect to the longitudinal direction of the vehicle body so that the conveyance start end portion 125b enters the recess 102a of the driving unit 102, and The inclination angle θd of the linear conveyance path 216 of the tip locking conveyance mechanism 183 with respect to the longitudinal direction of the vehicle body in the lateral direction of the vehicle body is increased.

Thereby, compared with the case where the recessed part 102a is not formed in the operation part 102, the conveyance start end part side of the supply conveyance apparatus 125 can be brought close to the operation part 102. The length can be shortened, and the overall length of the combine as a whole can be shortened.

Further, the operation start side of the supply conveyance device 125 becomes closer to the operation unit 102, and accordingly, an operation lever 198 for adjusting the handling depth provided in the support frame 190 of the supply conveyance device 125 is also connected to the operation unit 102. As a result, the operation lever 198 for adjusting the handling depth from the operating unit 102 becomes easier to operate.

Incidentally, when the inclination angles θc and θd of the supply / conveyance device 125 in the left-right direction with respect to the longitudinal direction of the vehicle body are increased, the supply / conveyance device 125 approaches the left-side scraping / conveying mechanism 171A. Therefore, there is a possibility that the stock side of the cereals conveyed by the supply and transport device 125 comes into contact with the left-side scraping and conveying mechanism 171A, resulting in inconvenience that the conveying posture of the cereals is disturbed.

Therefore, as shown in FIGS. 10, 11, 14 to 16 and 18, in this combine, the left side scraping and transporting mechanism 171A has a lower height position than the right side scraping and transporting mechanism 171B. It is arranged. As a result, the stocker side of the corn straw conveyed by the supply conveyance device 125 can be prevented from coming into contact with the left-side scraping conveyance mechanism 171A, and the conveyance posture of the corn straw can be prevented from being disturbed. , The grain recovery rate decreases such that the supply side of the cereals is conveyed to the threshing device 104 by the feeding and conveying device 125, and the handling of the threshing process in the threshing device 104 is likely to occur. Can be prevented.

Further, when the left-side scraping / conveying mechanism 171A is configured for two lines and the inclination angles θc and θd of the supply / conveyance device 125 in the lateral direction of the vehicle body with respect to the longitudinal direction of the vehicle body are increased, the left raising frame 126A is trimmed. The cereals are transported in a substantially U shape by the left-handed scraping transport mechanism 171A and the supply transport device 125. For this reason, in the culm passing section 127 serving as a conveyance direction switching point of the corn straw conveyed in a substantially U shape, the stocker side of the corn straw tends to be greatly swung by centrifugal force.

Therefore, as shown in FIG. 10, FIG. 11, FIG. 15 to FIG. 19 and FIG. 22, in this combine, a connecting portion 135A in the front-rear direction is interposed between the extending member 134 and the intermediate member 135 so as to extend. By separating the protruding member 134 from the grain passing portion 127 to the rear side of the vehicle body, the rice straw passing between the extending member 134 and the intermediate member 135 from the left and right scraping and conveying devices 124A and 124B to the supply conveying device 125. A delivery path 217 having a wide front-rear width that allows passage on the stock market side is formed.

Accordingly, even if the cereal stock side is greatly swung by the centrifugal force in the cereal passing portion 127, the stock side of the cereal is prevented from contacting the extending end of the extending member 134. Kernel recovery such that the contact point of the culm becomes poor due to the disturbance of the conveying posture of the culm due to the contact, and unhandled items are likely to occur in the threshing process in the threshing device 104. A decrease in rate can be prevented.

Further, the extending member 134 is arranged so as to be located on the left end side of the reaping portion 103 with respect to the grain passing portion 127. Thereby, in the grain pass section 127, it is possible to more reliably prevent the strainer side of the grain straw that is greatly swung by the centrifugal force from coming into contact with the extension end of the extension member 134, which is caused by the contact. A drop in the grain recovery rate can be prevented more reliably.

Furthermore, the guide members 173A and 173B of the left and right scraping and conveying devices 124A and 124B are formed so as to guide the stock source side of the culm passing through the culm passing part 127 toward the supply transporting device 125, and The guide end portion 73c of the left guide member 173A is fixed to the support member 136, and the guide end portion 73d of the right guide member 173A is fixed to the extension end portion of the extension member 134.

As a result, even if the stock side of the grain straw is greatly swung around by the centrifugal force in the grain passing section 127, the turning can be effectively suppressed by the right guide member 173B. Can be quickly and reliably delivered to the stock holding and transporting mechanism 182 of the supply and transport device 125 by the left and right guide members 173A and 173B. As a result, it is possible to prevent the grain recovery rate from being reduced due to clogging of cereals due to poor delivery and the disturbance of the posture of conveying cereals due to poor delivery.

As shown in FIGS. 15, 18, and 22, above the connecting portion 135 </ b> A, a support plate that receives and supports the lower end of the cereals delivered from the left and right scraping and conveying devices 124 </ b> A and 124 </ b> B to the supply and conveying device 125 from below. 218 is provided so as to extend from the extending end of the extending member 134 to the intermediate member 135.

Thereby, it is possible to easily align the stock side of the cereals delivered from the left and right scraping and conveying devices 124A and 124B to the supply and conveying device 125. As a result, the tip side of the cereal cocoons are aligned, and unhandled residue is less likely to occur in the threshing process in the threshing apparatus 104, and the grain recovery rate can be improved.

28 is a left side view of the cutting unit 103 showing another form of the cutting unit 103, and FIG. 29 is a front view of the cutting unit 103 showing another form of the cutting unit 103. As shown in these drawings, the mowing unit 103 replaces the left divider 121A, so that the drive type weeding device 219 is provided between the left weeding tool 151A and the left pulling device 122A at the left end thereof. Can be equipped.

As shown in FIGS. 14, 28, and 29, the weeding device 219 can be driven by the power extracted from the input shaft 153A of the left pulling device 122A through the bevel gear type auxiliary transmission mechanism 220. And, by the drive, the endless chain 223 turned over the drive sprocket 221 provided in the upper part and the driven sprocket 222 provided in the lower part is rotated, so that the endless chain 223 is aligned and arranged at a constant pitch. The plurality of raising claws 224 separate the leftmost crop Ca within the work width of the cutting unit 103 and the crop Cx outside the left work width adjacent to the crop Ca.

That is, by installing the driving type weeding device 219 between the left weeding tool 151A and the left pulling device 122A, the leftmost crop Ca within the working width of the cutting unit 103 is adjacent to this crop Ca. It is possible to improve the weeding accuracy and the weeding efficiency with the crop Cx outside the work width on the left side. This effect is particularly prominent when the harvesting operation is performed in a field where the crop C is heavily laid down.

The weeding device 219 is equipped with an inclined posture that tilts toward the inside of the vehicle body in the left-right direction of the vehicle body. Thus, while separating the leftmost crop Ca within the work width of the cutting part 103 and the crop Cx outside the left work width adjacent to the crop Ca, the tip side of the leftmost crop Ca within the work width is The pulling device 122A on the left side can be pulled toward the raising area Aa1.

This makes it possible to improve the accuracy and efficiency of the crop C caused by the pulling device 122A on the left side. This effect is particularly noticeable when two crops C are caused by the left pulling device 122A.

[Another form of the second embodiment]
[1] As the cutting part 103, either one of the left and right pulling frames 126A, 126B (for example, the driving part-side pulling frame 126B) is configured for one line, and the other is configured for two lines. It may be of a frame 3 line cutting specification.

[2] The cutting unit 103 may be connected to the right side of the machine body 101, and the driving unit 102 may be formed on the left side of the machine body 101.

[3] As the weeding device 219, a non-driving type may be adopted. In addition, the posture of the weeding device 219 may be set to a vertical posture.

[4] The connecting portion 135A may be formed integrally with the extending end of the extending member 134, or the connecting portion 135A is formed independently and connected to the intermediate member 135 and the extending member 134. May be.

[Summary of Second Embodiment]
As described above, the combine according to this embodiment is characterized by the following configuration. Ie:-
A cutting part is connected to the left and right side of the machine body, a driving part is formed on the other side of the machine body, a threshing device is deployed at a position behind the cutting part in the machine body,
In the cutting part, three dividers and a pair of left and right pulling devices are arranged so that the pulling devices are located between two adjacent dividers to form a pair of left and right pulling frames,
In each of the left and right pulling frames, the crop culm harvested by the reaping device arranged in a straight line in the left-right direction on the reaping part is scraped and conveyed to the culm passing part formed between the left and right pulling frames. A scraping and conveying device
In the harvesting and transporting structure of the combine, the harvesting unit includes a feeding and transporting device that transports the cereal of the crop that has been transported to the cereal passing unit by the left and right scraping transporting devices, to the threshing device.
The inclination angle of the straight conveyance path in the left and right direction of the vehicle in the left and right direction in the scraping conveyance device on the side away from the driving unit, and the right and left direction of the vehicle in the front and rear direction in the straight conveyance path in the scratching and conveying device on the driving unit side. Configured so that the angle of inclination in the direction is the same or substantially the same,
The angle between the linear transport path of the scraping transport device on the side away from the driving unit and the driving unit side is the linear transport path of the scraping transport device on the side remote from the driving unit and the linear transport path of the supply transport device The postures of the left and right scraping and conveying devices and the supply and conveying device are set so as to be larger than the included angle.

According to this characteristic configuration, the straight conveyance path of the left and right scraping conveyance devices is in a state substantially along the cutting position with respect to the cutting position of the cutting device that is straight in the horizontal direction above the cutting device. Can be positioned.
This effectively suppresses the left and right scraping and conveying devices from acting on the crop culm before cutting by the reaping device and pushing and bending the crop culm before cutting toward the front of the vehicle body as the vehicle body advances. be able to. As a result, when the crop culm that has been bent and bent reaches the cutting position of the cutting device and is cut, the restoring action of returning to the straight state from the state of being pushed and bent toward the front of the vehicle body, Effectively suppresses cropping of crop cereal twice due to jumping to the front of the vehicle body away from the scraping transport device and spilling out of the transport area of the left and right scraping transport devices and spilling forward of the harvesting device Can do.
This is particularly effective when two crop culms are introduced into the pulling frame, that is, when a plurality of crop culms are introduced with a spacing in the left-right direction within the pulling frame. It is possible to effectively suppress the feeding start end side of the scraping transfer device located on the front side of the vehicle body from acting and pushing on the crop cereal introduced into the left and right side parts on the side away from the cereal passing part. it can.
Moreover, the crop culm immediately after cutting by the reaping device can be quickly scraped and transported to the cereal passing part by the left and right rake transporting devices, and the crop culm is good for the supply and transport device in the cereal passing part Can be delivered smoothly in a safe state.
Accordingly, it is possible to prevent the grain recovery efficiency from being lowered due to the twice harvesting of the crop culm, and to improve the transport efficiency of the crop culm in the cutting unit.

Preferably, the scraping and transporting device on the side away from the operating unit is configured to have a height position lower than that of the driving and transporting device on the driving unit side. This is advantageous in the following points.
When the supply conveyance device is provided close to the scraping conveyance device on the side away from the driving unit, the stock source side of the crop cereal to be conveyed by the supply conveyance device contacts the scratch conveyance device, and the conveyance posture is There is a risk of inconvenience.
Therefore, in this embodiment, the scraping transport device on the side away from the driving unit is arranged so that the height position is lower than that of the driving transport unit on the driving unit side. The stocker side of the crop culm transported by the transport device can be made difficult to contact the scraping transport device on the side away from the driving unit, and the disorder of the transport posture of the crop culm due to the contact can be prevented. be able to.
As a result, when the crop culm is transported toward the threshing device by the supply and transport device due to the disturbance of the transport posture, the crop culm tip side becomes poorly aligned and handled in the threshing process by the threshing device. It is possible to prevent the residue from being easily generated.
Accordingly, it is possible to prevent the grain recovery efficiency from being reduced due to the crop culm transported by the supply transport device coming into contact with the scraping transport device on the side away from the operation unit.

Preferably, the scraping and transporting device includes a rotating body including a plurality of protrusions for scraping transport, and a guide member for guiding crop culm to the scraping transport area of the rotating body, In the guide member, linear guide portions extending from the left and right ends of the cutting portion toward the rotation center of the corresponding rotating body are formed in a horizontal straight line perpendicular to the longitudinal direction of the vehicle body.
According to this characteristic configuration, it is possible to prevent the straight guide portions of the left and right guide members from acting on the crop culm before cutting and pushing and bending the crop culm toward the front of the vehicle body during operation. . As a result, it is possible to avoid the risk that the pushed and bent crop culm will be spilled in front of the mowing device and cut twice due to the restoring action from the pushed and bent state.
Therefore, it is possible to prevent the grain recovery efficiency from being lowered due to the twice harvesting of the crop culm resulting from the action of the guide member on the crop culm before cutting.

Preferably, the three dividers are arranged with a left-right spacing that allows the introduction of up to two crop culms between adjacent dividers, and the left and right pulling devices are arranged up to two It is configured to allow crop culm to be raised, and the left and right scraping and conveying devices are configured to be capable of scraping and transporting up to two crop culms, and the left and right pulling frames are , Which is configured for two rows that cause a maximum of two crop culms, and the dividers located at the left and right ends of the mowing portion are arranged at the front end thereof, the posture of the weeding tool is closer to the left and right sides of the vehicle body It is comprised so that it may become the inclination attitude | position located in the vehicle body inner side of a direction.
According to this characteristic configuration, it is possible to harvest a maximum of four crops even though the configuration includes a pair of left and right pull-up frames.
In addition, when the four-line mowing operation is carried out, the weeds of the dividers located at the left and right ends of the cutting part with respect to the crop culm introduced into the left and right side parts on the side away from the cereal passing part in the pulling frame When the tool acts, the left side of the crop culm in the pulling frame is the side away from the crop culm outside the pulling frame adjacent to the crop culm and the cereal passing part is located. It is pushed toward the left and right other side in the pulling frame, which is the side to be moved.
Therefore, the conveyance efficiency can be improved while improving the weeding performance of the weeding tool.

Preferably, a weeding device is erected between the weeding tool of the divider and the pulling device disposed at the left and right end portions on the side away from the operating unit.
According to this characteristic configuration, the crop culm introduced into the left and right side ends on the side away from the operating part within the working width of the cutting part, and the crop culm outside the working width of the cutting part adjacent to this crop culm Can be accurately and reliably separated.
Therefore, weeding accuracy and weeding efficiency can be improved. This configuration is particularly effective when the harvesting operation is performed in a field where crops are extremely laid down.

At that time, it is more advantageous in the following points that the weeding device is installed in an inclined posture in which the weeding device is inclined toward the inside of the vehicle body in the lateral direction of the vehicle body.
According to this characteristic configuration, the weeding device is configured such that the crop culm introduced at the left and right side ends on the side away from the driving unit within the working width of the reaping part is the working width of the reaping part adjacent to the crop culm. It is possible to crawl toward the left and right center side of the reaping part, which is the side away from the outside crop culm and the side where the culm passing part is located.
Therefore, the conveyance efficiency can be improved while improving the weeding performance of the weeding device.

Preferably, a weed ridge is erected on the front end portion at the center of the right and left of the cutting portion.
According to this characteristic configuration, the crop culm caused by the left and right pulling devices has fallen toward the other pulling device, so that the tip side intersects with the front of the vehicle body on the front side of the vehicle body in the raising region. Even so, the crop culm can be divided into left and right toward the triggering area of the corresponding pulling device by the weeding action of the middle weed culm. Thereby, it is possible to avoid a possibility that the tip side of the crop culm is entangled with the front side of the left and right pulling devices.
Therefore, it is possible to prevent the crop culm from being lowered and causing the occurrence of defects due to the tangled side of the crop culm on the front side of the left and right pulling devices.

Furthermore, the combine according to this embodiment is characterized by the following configuration. Ie:-
A cutting part is connected to the left and right side of the machine body, a driving part is formed on the other side of the machine body, a threshing device is deployed at a position behind the cutting part in the machine body,
In the cutting part, three dividers and a pair of left and right pulling devices are arranged so that the pulling devices are located between two adjacent dividers to form a pair of left and right pulling frames,
Each of the left and right pulling frames is provided with a scraping transport device that scrapes and transports the crop straw of the crop harvested by the harvesting device of the harvesting unit to the grain passing portion formed between the left and right pulling frames,
The mowing unit includes a feeding and conveying device that conveys the cereal of the crop conveyed to the cereal passing unit by the left and right scraping conveying devices to the threshing device,
A connecting member that connects the cutting part to the machine body, an extending member that extends from the connecting member toward the front lower side of the vehicle body, and an intermediate member that connects to the extending end of the extending member,
In the harvesting and transporting structure of a combine equipped with a support member that supports the left and right scraping and transporting devices on the intermediate member,
A divider located on the left and right side ends on the side away from the operating section and a divider adjacent to the divider are arranged so as to have a left-right interval that allows introduction of up to two crop culms between them. The pulling device located between the two dividers is configured to be capable of causing a maximum of two crop culms, and the scraping and conveying device located on the side away from the operating part is It is configured so that the stalk transportation of the crop cereals can be carried out, and the pulling frame on the side away from the operation part is configured for 2 striations causing up to 2 crop cereals,
By connecting the intermediate member to the extending end of the extending member via a connecting portion facing in the front-rear direction, the supply conveying device is provided between the intermediate member and the extending member from the scraping conveying device. It is characterized in that a delivery path that allows passage of the crop cereals to be passed to the stockholder side is formed.

According to this characteristic configuration, the cutting part is a two-frame, three-cutting specification with a wide working width, where at least the pulling frame on the side away from the driving part is for two lines that can cause up to two crop culms. Can be configured. And if this wide cutting part is fixedly deployed directly in front of the aircraft or almost directly in front of the aircraft, it will be at the middle of the machine where uncut crops exist on both the left and right sides of the aircraft, and on the side away from the driving unit. It is possible to easily harvest crops that exist within the left and right widths of the vehicle body, regardless of the time of the cutting operation where uncut crops exist on the laterally outer side of the vehicle body.
In addition, by constructing the pull-up frame on the side away from the driving unit for two lines, it is possible to perform the middle split work where uncut crops exist on the left and right outer sides of the aircraft and the side of the vehicle body on the side away from the driving unit. Regardless of the time when the mowing operation is carried out, where there are uncut crops on the outside, there will always be a trigger frame that causes two crop culms. As a result, the number of trigger frames that form in the cutting part More crops can be harvested.
By the way, if the scraping and conveying device on the side away from the operating unit is configured for two wide left and right widths, the crop cereal harvested by the left pulling frame is substantially U-shaped by the scraping and conveying device and the supply and conveying device. It will be conveyed to. Therefore, in the grain passing part which is the conveyance direction switching point of the crop corn straw conveyed in the substantially U shape, the stock source side of the crop corn straw tends to be largely swung by the centrifugal force.
Therefore, in this characteristic configuration, a front-rear connecting portion is interposed between the extension member and the intermediate member, so that a delivery path having a wide front-rear width is formed between the extension member and the intermediate member. As a result, even if the stock side of the crop cereal is greatly swung by the centrifugal force in the cereal passing part, the stock side of the crop cereal comes into contact with the extending member. Can be prevented. As a result, the contact posture of the crop culm when it is transferred to the supply transport device is disturbed, and the alignment of the tip side of the crop culm conveyed by the supply transport device becomes poor, and the threshing by the threshing device It is possible to prevent a reduction in the grain recovery rate such that unhandled items are likely to occur in the processing.
Therefore, while composing a structure that is excellent in harvesting efficiency that can harvest a crop of a larger number of lines than the number of pull-up frames formed in the cutting part, without complicating the cutting and conveying structure and increasing the cost, In addition to being able to be configured with excellent workability that can perform both the middle split and the swivel work, the crop recovery rate is reduced due to the crop culm coming into contact with the extending member. Can be prevented.

Preferably, a support plate is provided above the connecting portion to receive and support the lower end of the crop cereal to be transferred from the scraping transfer device to the supply transfer device from below.
According to this characteristic configuration, it is possible to easily align the stock side of the crop cereals delivered from the left and right scraping and conveying devices to the supply and conveying device. Thereby, the tip side of the crop cereal can easily be aligned, and unhandled residue is less likely to occur in the threshing process in the threshing apparatus.
Therefore, the grain recovery rate can be improved.

Preferably, the scraping and transporting device includes a guide member that guides crop culm into the scraping and transporting region, and the extending end of the extending member is connected to the scraping and transporting device on the operating unit side. The guide terminal portion of the guide member provided is fixed.
According to this characteristic configuration, the crop culm that is scraped and conveyed toward the cereal passing part by the rake transporting device on the side away from the operation part is greatly swung around by the centrifugal force in the cereal passing part. However, the swinging can be effectively suppressed by the guide member in which the guide collecting end portion is fixed to the extending member. Thereby, the crop cereal can be quickly and reliably delivered to the supply and transport device.
Therefore, it is possible to prevent clogging of grains due to poor delivery from the scraping conveyance device to the supply conveyance device, and reduction of the grain recovery rate due to disturbance in the posture of the crop culm due to poor delivery.

Preferably, the extending member is disposed so as to be positioned on one side of the left and right sides away from the operation unit in the reaping unit rather than the grain passing portion.
According to this characteristic configuration, the crop culm that is scraped and transported toward the cereal passing part by the rake transporting device on the side away from the operating part is greatly swung around by the centrifugal force in the cereal passing part. However, since the extending member is arranged at the position opposite to the swinging side, it is possible to more reliably prevent the crop culm from coming into contact with the extending member.
Accordingly, it is possible to more reliably prevent a decrease in the grain recovery rate due to the crop culm coming into contact with the extending member.

[Third Embodiment]
Next, a third embodiment of the self-removing combine according to the present invention will be described with reference to FIGS. Below, the handling cylinder of the threshing apparatus which is the characteristics of this embodiment is mainly demonstrated.

FIG. 30 is a longitudinal side view of a threshing apparatus provided with a handling cylinder for a threshing apparatus. As shown in this figure, the threshing apparatus includes a threshing machine body 301, a threshing unit A having a handling chamber 302 provided inside an upper portion on the front end side of the threshing machine body 301, and the inside of the threshing machine body 301. A sorting section B having a swing sorting device 303 provided below the handling chamber 302, a first screw conveyor 304 and a second screw conveyor 305 provided inside the lower portion of the threshing machine body 301, and the threshing machine body 301 A waste straw conveying device 306 provided behind the inside of the handling chamber 302 and a waste straw processing device 307 connected to the rear part of the threshing machine body 301 are provided.

This threshing device is mounted on a traveling machine of a combine, threshing the harvested cereal from the harvesting part of the combine, and chopping and discharging the threshing waste straw or releasing it in a long straw state .

That is, the threshing section A includes the handling chamber 302, a handling cylinder 310 provided in the handling chamber 302 so as to be able to be driven around the rotational axis X in the front-rear direction of the threshing machine body, and a handling chamber 302 below the handling chamber 302. A receiving net 311 provided along the trunk 310 and a threshing feed chain 312 provided on the lateral outer side of the threshing machine body 301 so as to be freely driven are provided.

That is, the threshing unit A sandwiches the stock side of the harvested cereal from the harvesting part of the combine by the threshing feed chain 312 and conveys it backwards to the threshing machine body, whereby the tip side of the harvested cereal is disposed in the handling chamber. The threshing processing product such as threshing grains is dropped from the mesh of the receiving net 311 by inserting into the lower side of the handling cylinder 310 of 302 and threshing by the handling cylinder 310 and the receiving net 311. A threshing feed chain 312 discharges from a dust feed port 313 located at the rear end of the threshing.

The sorting unit B includes the swing sorting device 303, a red pepper 316 provided below the front end portion of the swing sorting device 303, and a drain provided above the rear end portion of the swing sorting device 303. A dust fan 317 is provided.
In other words, the sorting unit B receives the threshing processed material dropped from the receiving net 311 by the swing sorting device 303, and swings and sorts by the swing sorting device 303 and is supplied to the rear of the threshing machine body by the Kara 316. The sorting air is sorted into grains and dust, and the grains are dropped from the swing sorting device 303, and the dust is discharged together with the sorting wind and the dust outlet case 318 or the threshing machine body 301. It discharges out of the threshing machine from the dust outlet 319 located at the rear.

The No. 1 screw conveyor 304 receives the first of the grains from the swing sorting device 303, conveys it in the lateral direction of the threshing machine body, and carries it out to the lateral outside of the threshing machine body 301. The second screw conveyor 305 receives the second of the grains from the swing sorting device 303, conveys it in the lateral direction of the threshing machine body, and carries it out to the lateral outside of the threshing machine body 301. The second product from the No. 2 screw conveyor 305 is transferred to the reduction port located at the upper part of the horizontal wall of the threshing machine body 301 by a reduction device 320 such as a screw conveyor, and is put into the threshing machine body from this reduction port and shaken. It returns to the starting end side of the moving sorting device 303.

The waste straw conveying device 306 inherits the threshing waste straw from the threshing feed chain 312 and conveys the inherited threshing waste straw to the lateral side of the threshing machine body 301 while moving the tip side toward the lateral wall side of the threshing machine body 301, It is carried out of the threshing machine body 301 from the waste straw carrying-out port 321 located at the rear of the threshing machine body 301 and dropped onto the cutter case 325 of the draining machine processing device 307.

The waste separator processing device 307 is driven inside the cutter case 325, a waste outlet receiving port 326 provided at the upper portion of the cutter case 325, a swingable lid 327 that opens and closes the waste wall receiving port 326, and the cutter case 325. A pair of freely provided rotary cutters 328 and 328 is provided.

That is, when the lid plate 327 is lifted and opened, the waste straw processing device 307 causes the threshing waste straw that has fallen from the waste straw transporting device 306 to fall into the cutter case 325 from the waste straw receiving port 326, The threshing drainer that has entered the cutter case 325 is shredded in the slimming direction by the pair of rotating cutters 328 and 328 rotating, and the shredded straw is dropped from the lower part of the cutter case 325 to the rear of the threshing machine body 301.

When the lid plate 327 is lowered and closed, the waste straw processing device 307 drops the threshing waste straw dropped from the waste straw transporting device 306 onto the lid plate 327 and remains as a long straw. To the rear of the cutter case 325.

As shown in FIGS. 31 and 32, the handling drum 310 is provided with a sheet metal handling drum 331 having a support shaft 330 for front and rear of the threshing machine, and a peripheral wall portion 332 of the handling drum 331. Two inspection openings 333 and 333 disposed in the middle part in the front-rear direction of the peripheral wall portion 332, a lid body 334 that separately closes the two inspection openings 333 and 333, the peripheral wall portion 332 and the respective lid bodies 334 is provided with teeth 335 and 336 arranged side by side in the rotation direction F and the rotation axis direction of the treatment cylinder 310. Each of the tooth handling teeth 335 and 336 includes plates 335a and 336a located inside the tooth handling teeth 335 and 336, and the plates 335a and 336a prevent the entanglement of the cereals.

The two inspection openings 333 and 333 are used for attaching and replacing the tooth handling 335 located on the peripheral wall portion 332 of the drum drum 331. As shown in FIGS. 32 and 33, the two inspection openings 333 and 333 are dispersed in the circumferential direction of the handling cylinder 310 in a state of facing each other across the rotation axis X of the handling cylinder 310.

As shown in FIGS. 36 and 37, the lid body 334 includes a rectangular lid portion 340 provided with the tooth handling 336, and a connecting portion 341 located over the entire circumference of the lid portion outside the lid portion 340. It is composed of a single plate formed so as to prepare for a series.

The lid body 334 is provided with four teeth handling teeth 336 arranged side by side in the lateral width direction and the front-rear direction of the lid body 334. The lid body 334 includes a protrusion 342 in the front-rear direction of the lid body provided by attaching a band plate to one end portion of the surface 340a of the lid portion 340 in the lateral width direction of the lid body.

The connecting portion 341 includes a connecting surface 341 a provided so as to be flush with the surface 340 a of the lid portion 340 over the entire connecting portion 341, and lateral ends of the lid body 334 of the connecting portion 341. Three connecting holes 343 provided side by side in the front-rear direction of the lid body 334 at one position, and one connection hole provided in a part of the connecting portion 341 located at both ends in the front-rear direction of the lid body 334 344.

As shown in FIGS. 34 and 35, the lid body 334 with respect to each inspection opening 333 has the lateral direction of the lid body 334 as the circumferential direction of the handling cylinder 310, and the longitudinal direction of the lid body 334 is the longitudinal direction of the handling cylinder 310. As a connecting tool mounted in each of the connecting holes 343 and 344 of the connecting portion 341, the connecting surface 341a of the connecting portion 341 is brought into contact with the back surface of the peripheral wall portion 332 of the drum drum 331. The connecting portion 341 and the peripheral wall portion 332 are fastened and connected by bolts 345, 346, and 347. Then, the lid 334 is in an attached state, the lid 340 faces the inspection opening 333, and the lid 334 closes the inspection opening 333 by the lid 340. At this time, the protrusion 342 is located in the inspection opening 333 in a state along the portion 350 toward the lower side in the cylinder rotation direction of the inspection opening edge of the peripheral wall portion 332 of the cylinder drum 331, and the inspection opening edge. It serves as a guard means for the portion 350 and prevents the threshing kernel and threshing grains from coming into contact with the inspection opening edge portion 350. As each of the connecting bolts 345, 346, 347, cap bolts (hexagon socket head cap bolts) are employed so as not to wear out.

[Another embodiment 1 of the third embodiment]
Compared with the handling cylinder 310 shown in FIGS. 30 to 37, the handling cylinder 310 shown in FIGS. 38 to 39 according to another embodiment 1 has an upper side and a lower side in the handling cylinder rotation direction F rather than the inspection opening 333. The same structure is provided in that the connecting portion 341 of the lid body 334 and the peripheral wall portion 332 of the drum drum 331 are fastened and connected by connecting bolts 345 and 346 serving as connecting tools located at the top.
In the handling cylinder 310 according to this different embodiment 1, the distance D1 between the connecting tool 345 and the inspection opening edge 350 aligned in the handling cylinder rotation direction F on the upper side in the handling cylinder rotation direction than the inspection opening 333 (the axial center of the connecting tool 345). Distance D2 between the connecting tool 346 and the inspection opening edge 351 aligned in the handling cylinder rotation direction F on the lower side of the handling cylinder rotation direction than the inspection opening 333 (the distance from the inspection opening edge 350 to the inspection opening edge 350). The distance from the inspection opening edge 351 to the inspection opening edge 351 is set to be larger than each of the connectors 345 and 346.

That is, the inspection opening edge 350 on the upper side in the rotation direction of the barrel is subject to wear due to contact with the threshing grains and threshing grains. However, the size of the distance D1 between the inspection opening edge 350 and the connection tool 345 prevents the wear of the inspection opening edge 350 from proceeding to the connection tool 345 and disabling the attachment of the lid 334.

[Another embodiment 2 of the third embodiment]
The handling cylinder 310 shown in FIGS. 38 to 39 according to the second embodiment is similar to the handling cylinder 310 according to the first embodiment, and the connection lined up in the handling cylinder rotation direction F on the upper side in the handling cylinder rotation direction from the inspection opening 333. The above-mentioned connection D1 between the tool 345 and the inspection opening edge 350 (distance from the axial center of the connection tool 345 to the inspection opening edge 350) aligned in the cylinder rotation direction F on the lower side of the inspection cylinder 333 in the cylinder rotation direction. Each of the connectors 345 and 346 is provided in a state in which it is set to be larger than the distance D2 between the tool 346 and the inspection opening edge 351 (distance from the axis of the connector 346 to the inspection opening edge 351).

The handling cylinder 310 according to this different embodiment 2 is a portion of the inspection opening edge of the peripheral wall portion 332 of the handling drum 331 that faces the lower side in the handling cylinder rotation direction, like the handling cylinder 310 shown in FIGS. 30 to 37. The ridge 342 provided on the lid portion 340 of the lid body 334 along the inspection opening edge 350 is prevented by the ridge 342 from coming into contact with the inspection opening edge 350. To do.

[Summary of Third Embodiment]
When the lid described in Patent Document 1 is adopted as the lid for the inspection opening, the lid is provided with tooth handling, so that it is easy to make the inspection opening large and easy to use.
In other words, when the handle is not provided with teeth, the inspection openings are installed avoiding the teeth arranged in the circumferential direction of the drum and the rotation axis, so the inspection openings are small, elongated, or bent. It tends to become a shape.
On the other hand, if teeth are provided on the lid, even if the size and shape of the inspection opening are not affected by the teeth, it is necessary to install the teeth on the drum drum when the lid is attached. The teeth are installed on the lid.

When a lid provided with tooth handling is employed, problems related to the structure and arrangement of the lid and tooth handling tend to occur depending on the structure of the structure in which the lid is attached to the drum drum.
That is, as shown in FIG. 42, when the lid 334 is configured to be applied by being connected to the surface side of the peripheral wall portion 332 of the handling drum, when the lid 334 is configured in a flat plate shape so that the structure can be easily obtained, The entire lid 334 is positioned outside the drum drum 331 with respect to the peripheral drum wall 332 of the drum drum, so that the teeth 336 provided on the lid 334 are supported by the drum drum peripheral wall 332. The tooth handling 335 is displaced to the outside of the drum drum 331 and the tooth handling 336 of the lid 334 becomes abnormally close to the receiving net 311.
Further, when the lid body 334 is applied to the surface side of the peripheral wall portion 332 of the drum drum, the peripheral edge portion of the lid body 334 is exposed to the surface side of the peripheral wall portion 332 of the drum drum, so that the peripheral edge of the lid body 334 In the portion, the portion located closer to the lower side of the handling cylinder rotation direction than the inspection opening 333 is subject to wear due to contact with the cereal and grains.

As shown in FIG. 43, when trying to avoid abnormal proximity of the teeth 336 provided on the lid 334 to the receiving net, the portion of the lid 334 connecting the teeth 336 is connected to the peripheral wall portion 332 of the drum drum. Even if the lid 334 is provided with a structure that is displaced from the portion inside the drum drum 331, depending on the production error, the teeth 336 of the lid 334 may be handled by the teeth 335 of the peripheral wall 332 of the drum. May be closer to the receiving network 311.

Therefore, even though the inspection opening having a large and easy-to-use shape can be provided, even if the lid has a simple structure, it is possible to avoid wear of the lid and abnormal proximity to the tooth receiving mesh. In order to provide a handling cylinder for a threshing device, in the combine according to the third embodiment, the handling cylinder for a threshing device has the following characteristic configuration.

That is, in the handling cylinder for a threshing apparatus provided with an inspection opening provided in the peripheral wall portion of the handling drum and a detachable lid that closes the inspection opening,
The lid is provided with a connecting portion for connecting the lid to the back of the peripheral wall so as to attach the lid to the peripheral wall, and a tooth handling provided on the lid for closing the inspection opening of the lid. ,
The connection surface that contacts the back surface of the peripheral wall portion of the connection portion and the surface of the lid portion that faces the inspection opening are set to be flush with each other.

According to this configuration, even if the size and shape of the inspection opening are set regardless of the tooth handling, when the lid is attached, it is handled by the lid of the lid at the location where the tooth handling of the drum drum should be installed. Teeth are installed.
In addition, in the state where the lid is attached, the connecting portion of the lid is connected to the back side of the peripheral wall portion of the drum and is not exposed to the surface side of the peripheral wall portion, and the connecting portion is exposed to the front surface side of the peripheral wall portion. As in the case, there is no situation where cereal grains or grains contact the peripheral edge of the lid.
When the lid is attached, the lid portion of the lid is located at a position where it enters the inside of the peripheral wall portion of the drum, and the teeth of the lid are supported at this location. Thereby, the tooth-handling located in the cover body does not protrude to the receiving net side more than the tooth-handling located in the peripheral wall portion of the drum drum. Even if the position of the lid with respect to the peripheral wall of the drum is changed due to the manufacturing error of the lid, the tooth handling located on the lid is closer to the mesh side than the tooth handling located on the peripheral wall of the drum. Does not protrude.
Accordingly, the inspection opening is provided in a large and easy-to-use state so that the teeth can be assembled and replaced efficiently, and the lid is connected to the connection surface of the connection portion and the surface of the cover portion. High-quality threshing that can avoid abnormal proximity to the receiving net of the tooth-supporting tooth supported by the lid with high accuracy and that does not cause wear due to contact with the culm or kernel of the lid, while maintaining a simple structure. A device handling cylinder can be obtained.

Preferably, there is provided a connector for fastening and connecting the connecting portion of the lid and the peripheral wall portion of the drum.
The interval between the connecting tool arranged in the cylinder rotation direction on the upper side of the inspection cylinder from the inspection opening and the inspection opening edge of the peripheral wall portion, the cylinder rotation direction on the lower side of the cylinder rotation direction from the inspection opening. Is set to be larger than the interval between the connecting tool arranged in line and the inspection opening edge of the peripheral wall portion.
According to this configuration, when the lid is attached to the back side of the peripheral wall portion of the barrel drum, the inspection opening edge in the peripheral wall portion of the barrel drum is exposed, and the inspection opening edge on the upper side in the rotation direction of the barrel relative to the inspection opening In addition, wear due to contact with cereal grains and grains tends to occur. According to the configuration of the second aspect of the invention, even if wear occurs on the inspection opening edge on the upper side of the handling cylinder rotation direction than the inspection opening, the wear proceeds to the connecting device and the lid cannot be attached. This can be prevented by the size of the gap between the inspection opening edge and the coupling tool on the upper side in the rotation direction of the barrel relative to the inspection opening.
Therefore, threshing that can be used for a long time while preventing the lid from being unable to be attached due to wear of the inspection opening edge of the drum, while the lid is attached to the back side of the peripheral wall of the drum. A device handling cylinder can be obtained.

In addition, a ridge located on the inspection opening is provided on the surface of the lid along the inspection opening edge toward the lower side in the rotation direction of the barrel of the peripheral wall with the lid closed. It is also suitable.
According to this configuration, when the lid is attached, the protrusion provided on the lid is located at the inspection opening along the inspection opening edge toward the lower side in the barrel rotation direction, and guard means for the inspection opening edge Thus, the ridges can prevent the cereal grains and grains from hitting the inspection opening edge.
Accordingly, a threshing device that can be used for a long period of time while preventing the wear due to contact with the cereals and grains of the inspection opening edge of the handling drum while attaching the lid to the back side of the peripheral wall portion of the handling drum. A handling cylinder can be obtained.

[Other forms of the third embodiment]
The present invention can be applied to a full-culm charging type or normal type combine handling cylinder instead of the above-described self-decomposing combine handling cylinder. Note that this type of combine is configured to thresh the harvested cereal meal that has been supplied to the handling room from the tip to the stock.

[Fourth Embodiment]
Next, a fourth embodiment of the self-removing combine according to the present invention will be described with reference to FIGS. Below, the shielding member of the threshing apparatus which is the characteristics of this embodiment is mainly demonstrated.

44 shows a threshing apparatus 401 mounted on a combine. In the best mode for carrying out the present invention, in order to show an example in which the threshing apparatus 401 is mounted on a combine, the left side in FIG. 44 corresponds to the upper side of conveyance of the processed material, and the right side in FIG. This corresponds to the lower conveyance side of the processed material. In the following description, the upper side of the processed product is indicated as the front, and the lower side of the processed product is indicated as the rear.

The threshing device 401 has a handling chamber 400A on the upper side, a swing sorting device 400B on the middle side, and a recovery device 400C on the lower side. In the threshing apparatus 401, a receiving cylinder 405 that pivots a handling cylinder 403 for handling and handling the harvested cereal while being held and fed by the feed chain 402 to the handling chamber 400A and leaks the treated product. Is disposed below the handling cylinder 403.

The swing sorting device 400B includes a Glen pan 406 that receives the processed material leaked from the receiving net 405, a chaff sheave 407 and a Strollac 408 that are sequentially positioned behind the Glen pan 406, and a Glen sheave 409 that is positioned below the chaff sheave 407. In addition to a sheave case 416 that is driven to swing back and forth, a tongue 410 that can adjust the air volume is provided below the gren pan 406.

The swing sorting device 400B receives the processed material leaked from the handling chamber 400A by a chaff sheave 407 whose opening degree can be adjusted, and performs rough sorting while swinging and transferring the processed material, and leaked from the coarse sorting unit 439. The sheave case 416 is provided with a fine sorting unit 440 that sorts the sorted processed products into grains and second products while swinging and transferring them. A straw transporting 408 for transferring the waste from the rear end of the chaff sheave 407 is arranged so as to operate while receiving the sorting air from the bottom 410 so as to discharge the waste. It is configured to be discharged from the dust outlet 427 to the outside of the machine body.

The Kara 410 has a Kara fan 423 mounted in a Kara case 424 and is arranged below the front of the handling room 400A.

The Strollac 408 collects the sieved grains while being transported to the rear dust outlet 427 in cooperation with the sorting wind by the Karatsu 410 while shaking the swarf by the swing sorting device 400B. The

The recovery device 400C is provided with a first object conveying screw 411 that recovers a leakage (first thing) from the grain sheave 409 and laterally feeds it horizontally to the lower side of the grain sieve 409, as well as the grain sheave 409 and chaff sheave. A second thing conveying screw 412 for collecting the leakage (second thing) from 407 and the like and laterally feeding it to one side is provided.

As shown in FIG. 44, a processing cylinder 417 is provided at the lower rear of the handling cylinder 403, and the processed material discharged from the rear end portion of the handling cylinder 403 is disassembled and processed by the processing cylinder 417, and the grain is taken out from the dust. It is configured as follows. A dust exhaust fan 404 is disposed behind the processing cylinder 417, and an upper fan guide 414 is attached to cover the upper side of the dust exhaust fan 404. A shielding member 420, which will be described later, is attached below the lower fan guide 415 that is attached to cover the lower side of the dust exhaust fan 404, and is installed over the entire width between the left and right side walls 418 and 418, and near the dust outlet 427. A dust-removing lower lip plate 428 is disposed at the rear end of the sheave case 416 located at a position so as not to hinder the swinging of a shielding member 420 described later.

FIG. 45 is a vertical side view of the handling cylinder 403 showing details of the handling bar 431 forming the extensible handling teeth 431a at the tip, and FIG. 46 is a longitudinal rear view of the handling cylinder 403.
The drum 430 of the handle 403 provided with the teeth 432 has a front end wall 430a and an intermediate wall 430b fixed to the handle rotation shaft 433, and a rear end wall 430c fixed to the rear wall 426 of the handle chamber 400A. In addition, an input pulley 434 is fixed to a shaft portion that protrudes forward from the front wall 425 of the handling chamber 400A of the barrel rotation shaft 433. A fixed bracket 436 and a second fixed shaft 437 are extended from the first fixed shaft 435 in a crank shape to the first fixed shaft 435 at a position below the first fixed shaft 435 inside the handling cylinder 403, A rear end portion of the barrel rotation shaft 433 is rotatably supported on a shaft support member 441 fixed to the fixed shaft 437. On the second fixed shaft 437, two handling bars 431 are rotatably supported around the second fixed axis 437. When the tip of the handling bar 431 is positioned downward and downward, the tip of the handling bar 431 When the handle bar 431 is positioned upward and upward, the non-projecting posture retracted from the drum 430 of the handling cylinder 403 is set to a protruding attitude in which the portion (extensible handling teeth 431a) protrudes outward from the drum 430 of the handling cylinder 403. The length of the handling bar 431 is set so that

The base of the handling bar 431 is rotatably supported by the second fixed shaft 437, and the free end of the handling bar 431 is held in a state of being guided by a handling bar guide body 438 having a handling bar guide hole formed on the outer periphery of the drum 430. Has been. Therefore, when receiving rotational power from the input pulley 434, the handling cylinder 403 rotates around the handling cylinder rotating shaft 433, and the handling bar 431 is guided by the handling bar guide body 438 of the drum 430, while surrounding the second fixed axis 437. 46, as the telescopic handle 431a of the free end portion is directed downward, it projects outward from the drum 430, and retracts into the drum 430 as the extendable handle 431a rotates upward, and in the vicinity of the upper end position in FIG. It will be in the most retracted state as shown. As described above, the expansion and contraction teeth 431a handle the scissors at the lower part by the expansion and contraction operation of the handling bar 431, and the handling bar 431 is retracted near the upper end part. As a result, the processed product with wrinkles is released and threshed, so that the threshing process can be performed efficiently.

As shown in FIGS. 47 and 48, the shielding member 420 is a support member for attaching the shielding plate 421 made of a plate-like body to the lower surface of the lower fan guide 415 attached between the left and right side walls 418 and 418. 422 is fixed and the shielding plate 421 is suspended by screwing the support member 422 at a plurality of positions in the width direction.

As shown in FIG. 48, the shielding member 420 includes a shielding plate 421 whose upper portion is suspended from the support member 422. The shielding plate 421 is integrally connected to the upper portion in the width direction, and the lower portion thereof in the width direction. Are formed by forming slits 419 divided into left and right at a plurality of locations.
The shielding plate 421 is formed of a soft elastically deformable vinyl chloride resin.
In this way, by forming the shielding member 420 from a light elastically deformable resin, the shielding member 420 is moved rearward according to the air volume of the sorting air sent from the red pepper 410 toward the rear dust outlet 427. It is configured to swing as it lifts.

More specifically, in the state where the air volume of the tangs 410 is maximized, the shielding plate 421 suspended from the support member 422 of the shielding member 420 is greatly bent backward, and the lower end portion of the shielding plate 421 is swung upward and rearward. By moving, the space between the dust-extracting lower lip plate 428 is greatly opened, and the dust is discharged out of the machine.

Since the shielding plate 421 is formed in a plurality of small plate-like portions 421a in the width direction by slits 419 in which the lower majority portion except the upper end portion is cut in the vertical direction, The shape portion 421a has a larger amount of rearward deflection than the weakly wind-affected portion according to the air volume, and an opening according to the air volume is formed, and the exhaust wall is discharged to the outside with the opening volume according to the air volume. Compared to a conventional shielding device without a slit, the processing efficiency is good.

軽 At light load when the amount of threshing is reduced, the output is loosened and the air volume by the Kara 410 is weakened. At this time, the shielding member 420 blocks the dust outlet 427 and shields the dust outlet 427, and when swarf containing grains that could not be recovered by the recovery device 400C is supplied from the front, this grain is supplied to the shielding member 420. The swarf hits and the grains with heavy specific gravity fall into the sheave case 416. Even if the shavings having a low specific gravity hit the shielding member 420, they are guided to the rear by passing through the space between the shielding member 420 and the sheave case 416 on the sorting wind supplied from the red pepper 410. In this way, even if the repellent particles are about to be discharged outside the machine at a low flow rate, they are prevented from being discharged from the dust outlet by the shielding member 420 and are guided into the sheave case 416, and are thus discharged from the dust outlet 427. Third loss can be reduced.

[Another embodiment 1 of the fourth embodiment]
In the above-described embodiment, the shielding plate 421 is composed of a single plate-like body whose upper part is integrally connected in the width direction. However, the shielding plate 421 is divided into a small-width plate that is divided from the upper end to the lower end. You may comprise by arranging multiple (plate-shaped part) in the width direction.

[Another embodiment 2 of the fourth embodiment]
In the above-described embodiment, the shielding plate 421 is made of a soft vinyl chloride resin that can be elastically deformed. However, when the shielding plate 421 is made of a small plate-like body divided from the upper end to the lower end, The shielding plate 421 is made of hard vinyl chloride or other plate-like body that is not easily elastically deformed, and the horizontal axis is set so that each plate-like body is maintained at a predetermined angle by a biasing member such as a coil spring when not working. You may comprise so that it can rotate around and each plate-like body rotates around a horizontal axis independently according to the pressing force of the sawdust at the time of work.

[Another embodiment 3 of the fourth embodiment]
In the above-described embodiment, an example in which the shielding member 420 is formed of a synthetic resin material of vinyl chloride has been described. However, a thin-walled synthetic rubber, a plastic plate, or the like is employed as long as it performs the same function. May be.

[Another embodiment 4 of the fourth embodiment]
In the above-described embodiment, the slits 419 are formed in the shielding plate 421. However, the slits 419 form not only a single shielding plate 421 by a predetermined length but also a narrow gap. You may make it cut | disconnect so that it may. Moreover, in another form 1, you may arrange in parallel in the state which forms a small clearance gap between adjacent narrow plate-shaped body pieces.

[Another embodiment 5 of the fourth embodiment]
In the above-described embodiment, an example in which the shielding plate 421 of the shielding member 420 is formed by a single plate-like body formed of a vinyl chloride resin material has been described. However, two thin plate-like bodies are stacked as the plate-like body. Or it is good also as a plate-shaped body multiplexed more than that.
By changing the number of stacked plates, the opening for the same air volume can be changed, so depending on the crop conditions such as rice and wheat, for example, when harvesting wheat, the plate is more than in the case of rice. There is an advantage that the opening degree adapted to the crop conditions can be obtained by reducing the number of stacked sheets.

[Other forms]
When the shielding plate 421 is formed of soft vinyl chloride or the like so as to be elastically deformable, in a state in which the swing sorting device 400B is driven to swing back and forth in a no-load state (a state in which no wind sorting is performed by a red pepper), The lower end portion of the shielding plate 421 is always in contact with a member (for example, Strollac 408) attached to the sheave case 416 (in a state where the sheave case 416 is located at the lowest position), so that the sheave case 416 swings and selects. It is configured to follow and swing. In this way, the shielding plate 421 can be prevented from being sucked by the dust exhaust fan 404, and the adjacent small width can be obtained by the swinging of the sheave case 416 even in a working state where the swinging air is sorted with a relatively light load. As a result, a gap is formed between the plate-like portions, and good sorting can be performed while preventing third loss.

[Summary of Fourth Embodiment]
As described above, the combine according to this embodiment is characterized by the following configuration. Ie:-
A swing sorting device is provided below the handling chamber, and a red pepper is provided below the upper side of the workpiece to be transported by the swing sorting device, and this wind blows the sorting air toward the dust outlet on the lower side of the processed product. A threshing device having a shielding member capable of shielding the dust outlet and being displaceable on the lower conveyance side of the processed material, the shielding member having an upper portion suspended from the support member, The lower portion is formed by a plurality of plate-like portions that can swing independently in the width direction.

According to this feature, when there is a large amount of waste discharged outside the machine by sorting, the shielding member is largely retracted rearward by the strong sorting wind, and the dust outlet is opened largely. In addition, when the amount of the sorting air that is supplied from the tang is reduced due to a decrease in the amount of sorting performed when the aircraft is turning, the shielding member swings in the closing direction and the dust outlet The opening narrows.
As the threshing amount decreases, even if the output is reduced and the selection air volume by the tang is reduced slightly, the cocoon that has moved to the vicinity of the dust outlet tends to rebound (jump) and be easily discharged outside the machine. However, according to the first feature of the present invention, the soot that is about to be discharged outside the machine is restrained from being received by the shielding member and discharged outside the machine. On the other hand, the upper part of the shielding member is suspended from the support member, and its lower part is formed of a plurality of plate-like parts that can swing independently in the width direction. Since the waste scraps are discharged not only from the lower space where the shielding member is narrowed, but also from the gaps between the widened plate-like parts, each plate-like part is shaken or the side part is turned over. The hull can be collected well by the shielding member and the third loss can be reduced, but the waste can be discharged out of the machine without causing clogging and the sorting efficiency can be improved. I was able to.
Therefore, by forming the lower part of the shielding member with a plurality of plate-like parts that can swing independently in the width direction, it does not hinder the discharge of the sawdust at a high flow rate with a large amount of processing, Also, if the output (selection air volume) is reduced at low flow rates, such as when turning, the narrow plate-like parts can be easily turned up, and gaps can easily occur between adjacent plate-like parts. In addition, the third loss can be effectively prevented while discharging the waste well.

In order to achieve such an effect, in one preferred embodiment, the shielding member is formed of an elastically deformable plate-like body, the upper part is integrally connected in the width direction, and the lower part thereof is a plurality of slits in the width direction. It forms in the plate-shaped part parted on right and left. In another preferred embodiment, the plate-like portion of the shielding member is constituted by a plurality of small plate-like bodies that are divided from the upper end to the lower end.

It is also advantageous that the shielding member is made of a synthetic resin made of vinyl chloride.
According to this, the shielding member can be made of hard vinyl chloride, but if it is made of soft vinyl chloride, it is rich in flexibility, and it becomes easy to partially turn the side part with the slit, reducing the air volume, Even a small amount of soot can be easily discharged from between the slits, and the dust discharging function can be improved.

It is also advantageous that the shielding member is configured so that two or more plate-like bodies can be superimposed.
According to this, for example, in the case of a relatively heavy crop, two or more plate-like bodies may be stacked so that the plate-like bodies cannot be easily turned up. As a result, it is possible to reduce a state in which a relatively heavy crop easily turns up the plate-like body and is discharged. On the other hand, in the case of relatively light crops (such as wheat), the number of stacked plate bodies can be reduced, or the plate bodies can be easily turned up as a single plate body without overlapping. You can do it. Thereby, it is possible to reduce a state in which relatively light sawdust cannot be turned up without being able to turn up the plate-like body.

As described above, the present invention can be used for a self-removing combine that performs threshing processing on the tip side with a tooth-treating side while holding and transporting the stock side of the harvested cereal meal by the feed chain. In addition, the structure of each embodiment can be employ | adopted for the same combine as long as it does not conflict.

Claims (2)

1. A self-detaching combine equipped with a threshing device and a grain recovery unit on the aircraft supported by the right and left crawler traveling devices, and a cutting unit at the front of the aircraft,
   A right and left divider, a central divider provided at a substantially central position between the right and left dividers, a pulling device provided between the right and central dividers, and the left and central A raising device provided between the dividers of
   Two cutting lines are inserted between the right and center dividers to allow crop cutting, and two planting lines are inserted between the left and center dividers to enable crop cutting. Parts
   The position of the right divider and the right end of the right crawler travel device are located at substantially the same position in front view, and the position of the left divider and the left end of the left crawler travel device are substantially the same position in front view. Configured to be located in
   The threshing device is provided with a handling cylinder that is rotationally driven around an axis in the longitudinal direction of the machine body, and the threshing device and the driver's seat are arranged in the horizontal direction of the machine body,
   A space in the left-right direction of the fuselage between the center of the driver seat in the left-right direction of the fuselage and a central divider, and a distance in the left-right direction of the fuselage between the shaft core and the central divider in which the handling cylinder is driven to rotate. A self-removing combine that is set to be almost the same.
2. A transmission case that transmits power to the right and left crawler traveling devices and the cutting unit is provided behind the central divider at the front between the right and left crawler traveling devices,
   The self-detaching combine according to claim 1, wherein an engine is provided on a driver seat side with respect to the mission case, and a support frame for supporting the harvesting part on the airframe is provided on the threshing device side with respect to the mission case.
   
   

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