JP2014143980A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester that reduces contact between a second mower and a levee by preventing fluctuations in the second mower during ascent.SOLUTION: First and second lifting guides (75) and (45) for lifting and lowering a second mower device (90) in such a manner as to interlock with ascent/descent of a reaping pretreatment device (5) are provided. An upper part of the first lifting guide (75) is engaged with a side surface (20R) on one of the right and left sides of a feeder house (20), and an upper part of the second lifting guide (45) is engaged with a side surface (20L) on the other one of the right and left sides of the feeder house (20). Thus, the above problem is solved.

Description

  The present invention relates to a combine equipped with a secondmore device.

  In conventional combine harvesters, the pre-cutting device is moved up and down in order to cut the cereal stumps (residues) cut with the horizontal cutting blade device of the pre-cutting device and to facilitate the tilling work in the subsequent process. There is a second mower device that moves up and down in conjunction with.

JP 2011-200188 A

However, in the conventional combine, the feeder house of the pre-harvesting device and the second mower device are engaged by one lifting guide, so that the second mower device is twisted by the resistance generated at the time of cutting the residue and left and right. There was a risk of tilting.
As a result, there is a problem that the airframe that rides on the residue after being cut by the secondmore device tilts or generates vibration, and the lifting guide may be deformed by a torsional force and must be replaced at an early stage. .
Therefore, the main problem of the present invention is to eliminate such problems.

The present invention that has solved the above problems is as follows.
According to the first aspect of the present invention, the planted grain culm in the field is reaped on the front side of the body frame (2) provided with the left and right traveling devices (3, 3) and the control unit (8) on which the operator is boarded. A cutting blade device (50) and a cutting pretreatment device (5) provided with a feeder house (20) for conveying the cereals harvested by the cutting blade device (50) toward the threshing device (4), and the cutting A combiner comprising a secondmore device (90) for cutting the residue after cutting at a position rearward of the blade device (50),
A first lifting guide (75) and a second lifting guide (45) for raising and lowering the second mower device (90) in conjunction with the raising and lowering of the cutting pretreatment device (5) are provided, and the first lifting guide (75) The upper part is engaged with the left and right side surfaces (20R) of the feeder house (20), and the upper part of the second lifting guide (45) is connected to the left and right side surfaces (20L) of the feeder house (20). It is a combine characterized by being engaged.

  According to the second aspect of the present invention, the lifting position of the second mower device (90) by the second lifting guide (45) is higher than the lifting position of the second mower device (90) by the first lifting guide (75). The combine according to claim 1, which is configured as follows.

  According to a third aspect of the present invention, a plurality of elevating frames (95, 96, 97) that support the second mower device (90) so as to be elevable in the vertical direction are attached to the machine body frame (2) at intervals in the left-right direction. The first elevating frame (95) located on the opposite side to the control unit (8) of the plurality of elevating frames (95, 96, 97) is attached to the outside of the left and right traveling device (3). Of the plurality of lifting frames (95, 96, 97), the second lifting frame (97) located on the control unit (8) side drives the left and right traveling devices (3, 3). The combine according to claim 1 or 2, wherein the combine is arranged between the transmission (3A) and the control section (8).

  According to a fourth aspect of the present invention, a third elevating frame (96) provided between the first elevating frame (95) and the second elevating frame (97) moves up and down the cutting pre-treatment device (5). The combine according to claim 3, which is arranged between the cylinder (5A) and the transmission (3A).

  The invention according to claim 5 is the combine according to claim 3 or 4, further comprising left and right connecting frames (95B) for connecting intermediate portions of the plurality of elevating frames (95, 96, 97).

  According to a sixth aspect of the present invention, there is provided a second bearing portion (100) to which a boss portion that connects a base portion of the second elevating frame (97) to the body frame (2) side is mounted, and the third elevating frame (96). 6. The combine according to claim 4 or 5, wherein each of the third bearing portion (99) to which the boss portion connecting the base portion of the boss portion to the body frame (2) side is mounted is structured to be split in the front-rear direction. .

  In the invention according to claim 7, the second elevating frame (97) includes a second straight portion (97A) extending linearly downward from a base portion on the second bearing portion (100) side, A second bending portion (97B) that is bent downward from the front end of the drive shaft (3B) that drives the traveling device (3, 3) from the tip of the second straight portion (97A); The third elevating frame (96) includes a third straight portion (96A) extending linearly downward from a base portion on the third bearing member (99) side, and a tip of the third straight portion (96A). The combine according to any one of claims 3 to 6, wherein a third bending portion (96B) that is curved downward is formed around the front side of the drive shaft (3B).

    According to the first aspect of the present invention, the upper portion of the first lifting guide (75) is engaged with the side surface (20R) on the left and right sides of the feeder house (20), and the upper portion of the second lifting guide (45) is engaged. The second house device (90) supported by the first lifting guide (75) and the second lifting guide (45) is engaged with the left and right side surfaces (20L) of the feeder house (20). The cutting height can be made uniform by suppressing the inclination in the left-right direction, and the cutting efficiency of the cutting can be increased by reducing the inclination and vibration of the airframe. Further, the torsional force acting on the first and second lifting guides (45, 75) can be dispersed, and the deformation of the first and second lifting guides (45, 75) can be suppressed to increase the durability.

    According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the second lifting guide (45) lifts the second mower device (90) to the first lifting guide (75). Since it is configured to be higher than the lifting position of the second mower device (90), the second mower device (90) is raised to a higher position when cutting the planted cereal stub near the cocoon. Thus, contact with the bag can be prevented.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the control portion of the plurality of lifting frames (95, 96, 97) supporting the second mower device (90). Since the second elevating frame (97) located on the (8) side is disposed between the transmission (3A) for driving the travel device (3, 3) and the control unit (8), the second elevating frame (97) The overhanging of the machine to the outside of the fuselage is eliminated and the width of the combine can be reduced. As a result, it is possible to improve the quality of the harvested culm while preventing the culling of the culm during the mid-split operation and to streamline the harvesting work, and to prevent breakage due to contact with the eaves and the like of the lifting frame. it can.

  According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, between the first lifting frame (95) and the second lifting frame (97) for supporting the second mower device (90). Since the third elevating frame (96) provided is disposed between the elevating cylinder (5A) and the transmission (3A) for elevating the cutting pretreatment device (5), the support rigidity of the second mower device (90) is increased. Vibration and noise generated during operation of the secondmore device (90) can be reduced.

According to the invention described in claim 5, in addition to the effect of the invention described in claim 3 or 4, the connecting frame (95B) in the left-right direction connecting the intermediate portions of the plurality of lifting frames (95, 96, 97) is provided. Since it is equipped, the support rigidity of the second mower device (90) can be increased, the vibration of the second mower device (90) is suppressed, the transmission efficiency is increased, and the cutting performance of the second mower device (90) is improved. be able to.
Further, since the second elevating frame (97) is arranged inside the control unit (8), even if the connecting frame (95B) is arranged at a high position of the elevating frame, it does not interfere with the control unit (8). The second mower device (90) can be moved up and down, and a large gap is formed between the second mower device (90) and the connecting frame (95B). The soot can be discharged to prevent the soot from accumulating on the second mower device (90).

  According to the invention described in claim 6, in addition to the effect of the invention described in claim 4 or 5, the boss part that connects the base part of the second elevating frame (97) to the body frame (2) side is mounted. Each of the two bearing portions (100) and the third bearing portion (99) having a boss portion connecting the base of the third elevating frame (96) to the body frame (2) side can be divided in the front-rear direction. Therefore, the second mower device (90) can be easily detached from the body frame (2) for maintenance.

According to the invention described in claim 7, in addition to the effect described in any one of claims 3 to 6, the second lift frame (97) is provided below the base on the second bearing portion (100) side. The second straight line portion (97A) extending linearly toward the lower side and the front side of the drive shaft (3B) for driving the travel device (3, 3) from the front end of the second straight line portion (97A) downward A second curved portion (97B) that curves toward the third is formed, and the third elevating frame (96) has a third straight line extending linearly downward from the base portion on the third bearing portion (99) side. Part (96A) and a third bending part (96B) that curves downward from the front end of the drive shaft (3B) that drives the traveling device (3, 3) from the tip of the third straight part (96A). ), The space on the front side of the drive shaft (3B) that drives the travel device (3, 3) is effective. It may be placed second mower device (90) to use.
Further, it is possible to prevent the drive shaft (3B) from contacting the second elevating frame (97) and the third elevating frame (96).

It is a front view of a combine. It is a left view of a combine. It is a rear view of a combine. It is a principal part left view of a cutting pre-processing apparatus. It is a principal part top view of a cutting pretreatment apparatus. It is a front view of a take-in auger. It is a principal part front view of 2ndmore. It is a principal part left view of 2ndmore. It is a principal part top view of 2ndmore. It is a principal part top view of other 2nd more. It is a power transmission diagram. (A) of a feeder house and an auger frame is a top view, (b) is a left view. It is a principal part left view of the junction part of another auger frame and feeder house. It is the state figure which raised / lowered the second mower with the 1st lifting guide. It is the state figure which raised / lowered the second mower with the 2nd lifting guide. It is a principal part left view of the support member of 2ndmore. It is the state figure which raised / lowered the second mower with the other 2nd lifting guide. It is a principal part front view of 2ndmore.

The general purpose combine according to the present invention will be described below with reference to the accompanying drawings.
As shown in FIGS. 1 to 3, the general-purpose combine 1 is provided with a traveling device 3 composed of a pair of left and right crawlers for traveling on the soil surface below the body frame 2, and threshing above the body frame 2. A threshing device 4 for performing sorting is provided, and a pre-cutting processing device 5 for harvesting cereal straw in the field is provided on the front side of the threshing device 4. The grain threshed and selected by the threshing device 4 is stored in a Glen tank 6 provided on the right side of the threshing device 4, and the stored grain is discharged to the outside by a discharge cylinder 7 composed of a whipping cylinder and a transverse feed cylinder. Is done. In addition, a control unit 8 on which a driver gets on the front side of the Glen tank 6 is provided.

(Cutting pretreatment device)
Next, the pre-cutting processing device 5 of the present invention will be described. In addition, although the direction is shown and demonstrated for convenience for easy understanding, the configuration is not limited by these.

  The cutting pretreatment device 5 includes a feeder house 20, an auger device 30, a horizontal cutting blade device 50, a scraping device 60, and a vertical cutting blade device 80 as shown in FIGS. . FIG. 11 shows the power transmission structure.

<Feeder house>
The feeder house 20 is a device that conveys cereal grains such as rice, wheat, soybeans, and buckwheat conveyed by the auger device 30 to the threshing device 4, and is provided between the auger device 30 and the threshing device 4.

A shaft 27 on which sprockets 27 </ b> A and 27 </ b> B that transmit rotation of the engine E to the auger device 30 and the scraping device 60 are attached to the front portion of the feeder house 20 on the uncut side, and the horizontal cutting blade device 50. A shaft 28 on which a sprocket 28A for transmitting the rotation of the engine E and a conversion mechanism 28B are mounted to the vertical cutting blade device 80 is pivotally supported at a predetermined interval in the vertical direction.
Further, at the rear part of the frame of the feeder house 20, the shaft 25 on which the sprocket 25A for transmitting the rotation of the engine E to the second mower blade device 90 and the conversion mechanism 25B are mounted, the rotation of the engine E on the feeder house 20, etc. The shaft 26 on which the pulley 26A and the sprockets 26C, 26D, 26E, and 26F are mounted is pivotally supported at a predetermined interval in the vertical direction.

  A chain 12C is wound around the sprockets 26E, 27A, 28A, and the tension of the chain 12C is adjusted to a predetermined range by a tension arm (not shown) provided between the sprockets 26E, 27A. Similarly, a chain 12F is wound around the sprockets 25A and 26F, and the tension of the chain 12F is adjusted to a predetermined range by a tension arm (not shown) provided approximately on the sprockets 25A and 26F. .

  As shown in FIG. 12, the upper surface of the frame of the feeder house 20 has an auger device 30 as shown in FIG. A sink plate 21 made of a plate material that covers the upper surface of the rear plate and the upper surface of the front end portion of the frame of the feeder house 20 is attached.

  The horizontal extending portion at the front end of the sink plate 21 is attached to the upper surface of the rear plate of the auger frame 31 by fastening means such as bolts, and the horizontal extending portion at the rear end is attached to the frame of the feeder house 20 by fastening means such as bolts. It is attached to the upper surface of the body, and the front end portion and the rear end portion are formed from an intermediate portion inclined rearward. Further, in order to prevent intrusion of sawdust into the space surrounded by the rear plate of the auger frame 31, the upper surface of the frame of the feeder house 20, and the intermediate portion of the sink plate 21, both side entrances of the space are covered with the cover 21A. It is preferable to cover with.

  Moreover, in order to collect the grains mixed in the accumulated sawdust, the upper surface is opened to the upper surface of the front end portion of the frame of the feeder house 20 instead of the sink plate 21, as shown in FIG. The recovery box 21B can be detachably attached to the upper surface of the front end portion of the frame of the feeder house 20 by fastening means such as bolts.

<Ogre device>
The auger device 30 is a device that gathers the cereals scraped by the scraping device 60 in front of the feeding port 32 and takes them over to the feeder house 20. The auger device 30 is disposed in front of the feeder house 20 and is a machine body of the general-purpose combine 1. It is formed to have substantially the same width as the entire width of.

  The auger device 30 includes an auger frame 31, a scraping auger 33 that collects the scraped grains into the front of the feeding port 32, and the like. The auger frame 31 is formed in a bucket shape by a pair of left and right side plates, a rear plate that connects the rear surfaces of both side plates, and a bottom plate that connects a partial lower surface of both side plates and the lower surface of the rear plate. In addition, weed bodies 39, 39 for weeding the rice straw of the field are provided at the front end portions of the both side plates, and a feeding port 32 for conveying the rice straw to the feeder house 20 is formed on the left side of the rear plate. In addition, at the front end of the bottom plate, there is provided a horizontal cutting blade device 50 for cutting the stock of the cereal.

  The left and right side plates of the auger frame 31 are divided into front and rear, and are constituted by a rear side plate 31C forming a part of a bucket-like structure and a front side plate 31D provided with the weed body 39 in the front part. At the front end portion of the front side plate 31D, a plane portion that intersects with the longitudinal direction of the aircraft is formed, and this plane portion and a plane portion that is formed at the rear end portion of the weed body 39 and intersects with the longitudinal direction of the aircraft body are formed. The weed body 39 is fixed to the front side plate 31B by being fastened by the fastening means 31E such as a bolt in the butted state. Further, in order to more efficiently perform the grain weeding, the rear portion of the left weed body 39 is attached to the swing arm 54, and the front portion of the weed body 39 is swung left and right. Is preferred.

  The upper surfaces of the two side plates are formed so as to be inclined rearwardly from the front side to the rear side in a side view, the lower surface is formed substantially horizontally from the front side to the middle, and projects from the middle to the rear side in an arc shape downward. Is formed. The rear plate is formed in a substantially rectangular shape in a front view, and the bottom plate is formed substantially horizontally from the front side to the middle along the lower surface of the side plate in a side view, and projects in an arc shape from the middle to the rear side downward. Is formed. The auger frame 31 can be formed integrally by welding both side plates and the rear plate made of steel, or by cutting and bending one piece of steel. Furthermore, the shape of the side plate or the like is not limited to the above-described shape, and can be formed in any shape according to the application.

  The take-in auger 33 is mounted on a shaft 34 that is rotatably supported on both side plates of the auger frame 31. On the outer periphery of the stirrer auger 33, a conveying spiral 35 that is slanted in a direction in which the cereals scraped by the stirrer 60 are gathered to the front of the feed port 32 is fixed. In order to prevent the cereals from staying, a plurality of scraping fingers 36 are provided in a portion that faces each other so as to freely appear and disappear. A base portion of the take-up finger 36 is rotatably mounted on a crankshaft portion 34C that rotates integrally with the shaft 34 in a state of being eccentric with respect to the shaft center of the shaft 34, and is scratched by the eccentric motion of the crankshaft portion 34C. It is configured to appear and disappear from a hole formed in the outer periphery of the auger 33. A guide member 36A is provided in the hole of the take-up auger 33 in order to smoothly slide the take-up finger 36. The guide member 36A is attached to the take-up auger 33 from the inner surface side, and one of the guide members 36A is provided. The portion protrudes toward the outer peripheral side of the take-in auger 33.

  In order to prevent the deformation of the conveyance spiral 35, reinforcing ribs 35A are provided on the conveyance upstream side surface (right side surface) of the conveyance spiral 35 with a predetermined interval. In addition, it is preferable to reduce the interval W between the adjacent ribs 35A and 35A toward the downstream side of the conveyance, and 2 in order to increase the rigidity of the conveyance spiral 35 and the rib 35A provided in the vicinity of the inlet 32. It is also preferable to form the conveying spiral 35 and the rib 35A by superimposing steel sheets.

  The shaft 34 on which the auger 33 is mounted extends to the left side of the left side plate of the auger frame 31, and sprockets 34A and 34B are attached to the extended portion of the shaft 34 with a predetermined interval. A transmission chain 12D is wound around the sprocket 27B and the sprocket 34A provided at the front portion of the feeder house 20.

<Horizontal cutting blade device>
The horizontal cutting blade device 50 is a device that cuts stock sources such as cereals scraped by the scraping device 60, oil rape cut from the upper part by the vertical cutting blade device 80, and high-quality cereals such as rape blossoms. It is provided at the front end of the bottom plate of the auger frame 31 and is gently rearwardly inclined from the front side to the rear side in a side view.

  The horizontal cutting blade device 50 includes a fixed blade 52 composed of a finger-shaped lower blade 52A having a narrow blade width and a long blade length for holding a stock such as cereals and an angle connected to the rear portion of the fixed blade 52. A horizontal cutting blade plate 53 made of steel or the like, and a movable blade 51 composed of a triangular upper blade 51A having a plurality of wide blade widths and short blade lengths that slide in the left-right direction through grooves formed in the fixed blade 52. ing. In plan view, the cutting edge of the lower blade 52A extends forward from the tip of the upper blade 51A, and the tip of the lower blade 52A is formed at an angle of about 30 degrees. On the other hand, the cutting edge of the upper blade 51 is formed at about 60 degrees, and the cutting edge of the upper blade 51 that holds a stock source such as cereal and the extended portion of the lower blade 52 has a sandwiching angle of about 30 degrees. The sandwiching angle is smaller than that of a normal clipper blade.

  The tip of the swing arm 54 is connected to the base of the movable blade 51, and the rear end of the swing arm 54 is such that the swing arm 54 is substantially orthogonal to the shaft 29 in a side view. The tip of the shaft 29 is connected.

  The rotation of the engine E is transmitted to the shaft 29 via the sprocket 28A, the conversion mechanism 28B, and the like. The rotation of the engine E transmitted to the input side of the conversion mechanism 28B is converted into reciprocating rotation by a declination shaft portion provided at a fixed angle at the base portion of the conversion mechanism 28B, and the shaft connected to the output side 29 is reciprocally swung around the axis of the shaft 29. As the shaft 29 reciprocally swings, the tip of the swing arm 54 swings back and forth in the left-right direction around the rear end of the swing arm 54, and the movable blade 51 is a groove formed by the fixed blade 52. Slide left and right. The horizontal cutting blade device 50 is not limited to the above-described embodiment, and includes a movable blade located on the left side and a movable blade located on the right side in order to reduce vibrations generated by the movement of the movable blade 51. Alternatively, the left movable blade and the right movable blade can be reciprocally slid in opposite directions.

<Scratching device>
The scraping device 60 is a device that scrapes into the auger device 30 a fallen cereal, a low cereal such as soybeans or buckwheat, and a high cereal such as oil rape or rape blossoms. They are formed with the same width and are provided on the upper side of the auger device 30.

The picking device 60 includes a picking reel 61 and an arm 63 that moves the picking reel 61 up and down.
The base part of the arm 63 is rotatably mounted on shafts 68 installed on both side plates of the auger frame 31, and the intermediate part is connected to a tip part of a lifting device such as a hydraulic cylinder that moves the arm 63 up and down. A shaft 62 on which the take-up reel 61 is rotatably mounted is installed at the distal end portion.
A pulley 68A is attached to the right end of the shaft 68, a sprocket 68B is attached to the left end, and a pulley 62A is attached to the right end of the shaft 62 on which the take-up reel 61 is mounted. The chain 12E is wound around the sprocket 34B and the sprocket 68B attached to the shaft 34 of the device 30, and the belt 11C is wound around the pulleys 62A and 68A.

  The take-up reel 61 is formed in a substantially pentagonal shape in a side view, and a tine support rod 65 is provided at each of the five corners, and the tine support rod 65 is laterally spaced by a predetermined interval. A plurality of reel tines 64 are suspended.

<Vertical cutting blade device>
The vertical cutting blade device 80 is a device that cuts the entangled cereal grains above the left side plate of the auger frame 31, and the upper end portion of the vertical cutting blade device 80 is provided in front of the shaft 62 of the take-up reel 61. The lower end portion is provided behind the weed body 39. Further, the vertical cutting blade device 80 is provided so as to be gently inclined downwardly from the upper end portion toward the lower end portion.

  The vertical cutting blade device 80 includes a fixed blade 82 composed of a finger-shaped left blade 82A having a narrow blade width and a long blade length for holding high-sized cereals such as oil rape and rape blossom, and a rear portion of the fixed blade 82. A triangular right blade 81A having a wide blade width and a short blade length that slides vertically in a slit formed in the vertical cutting blade plate 83 made of connected angle steel or the like and the left blade 82A of the fixed blade 82. It is comprised from the movable blade 81 which consists of. In side view, the cutting edge of the left blade 82A extends forward from the tip of the right blade 81A, and the tip of the left blade 82A is formed at an angle of about 30 degrees. On the other hand, the cutting edge of the right blade 81A is formed at about 60 degrees, and the cutting edge of the right blade 81A that holds the cereal and the like and the extending portion of the left blade 82A have a sandwiching angle of about 30 degrees, The sandwiching angle is small with respect to the clipper blade. In order to prevent clogging of the cereals below the left blade 82, the left blade 82A located at the lowermost end of the fixed blade 82 is placed on the upper surface 31B of the left side plate of the auger frame 31, as shown in FIG. It is preferable to arrange them in parallel and at the same height.

  The tip of the swing arm 84 is connected to the base of the movable blade 81, and the rear end of the swing arm 84 is such that the swing arm 84 is substantially orthogonal to the shaft 29 in a side view. The tip of the shaft 29 is connected.

  The rotation of the engine E is transmitted to the shaft 29 via the sprocket 28A, the conversion mechanism 28B, and the like. The rotation of the engine E transmitted to the input side of the conversion mechanism 28B is converted into reciprocating rotation by a declination shaft portion provided at a fixed angle at the base portion of the conversion mechanism 28B, and the shaft connected to the output side 29 is reciprocally swung around the axis of the shaft 29. As the shaft 29 reciprocally swings, the tip end of the swing arm 84 reciprocally swings up and down around the rear end of the swing arm 84, and the movable blade 81 is a groove formed by the fixed blade 82. Slide up and down.

  An upper end portion of the vertical cutting blade plate 83 of the vertical cutting blade device 80 is attached to a front end portion of a support frame 85 erected from the left surface of the left side plate of the auger frame 31 toward the upper front side by fastening means such as a bolt. The part is attached to the front side part of the left surface of the left side plate of the auger frame 31 by fastening means such as a bolt. Further, the base of the support frame 85 is fitted into the groove of the support 86 supported on the left surface of the left side plate of the auger frame 31, and a vertical cutting blade is used to prevent entanglement between the harvested cereal and uncut cereal. A cover 87 made of metal or plastic is provided between the plate 83 and the support frame 85.

<Guide>
In order to prevent clogging of the culm in the gap formed between the auger frame 31 and the vertical cutting blade device 80 and to prevent the culm from accumulating on the front side of the swinging arms 54 and 84, FIGS. As shown in the figure, on the left side of the weed body 39 on the left side, a first guide 40 that inclines upward from the front portion of the weed body 39 and a second guide 41 that extends horizontally backward from the middle portion of the weed body 39. Is provided.

  In order to prevent clogging of the cereals below the fixed blade 82 of the vertical cutting blade device 80, the front end portion of the first guide 40 formed of pipe steel is the front portion of the left side surface of the weed body 39 in a side view. The intermediate portion intersects the upper surface 39A of the weed body 39 and tilts upward, and the rear end portion is fitted into the tip portion of the left blade 82A at the lowermost end of the fixed blade 82. Further, in order to prevent the uncut grain ridges from being entangled with the vertical cutting blade device 80, the first cutting guide 40 is gently inclined from the front end to the rear end of the first guide 40 in a plan view. Yes.

  The front end portion of the second guide 41 formed of a flat steel material in the side view in order to efficiently weed the uncut corn straw and the harvested corn straw with the weed body 39 until cut by the vertical cutting blade device 80, It is fixed to the middle part of the left side surface of the weed body 39, the middle part extends rearward beyond the lower part of the vertical cutting blade apparatus 80, and the rear end part is a cutting part provided on the upper left side of the horizontal cutting blade apparatus 50. It extends to the vicinity of the blade guard 42. Further, in plan view, the second guide 41 extends from the front end portion toward the rear end portion so as to be inclined to the left side of the first guide 40.

(Secondmore equipment)
Below the pre-cutting processing device 5, as shown in FIGS. 7 to 9, in order to shorten the length of stumps (residues) such as cereals cut by the horizontal cutting blade device 50, secondmore A device 90 is provided.

  The second more device 90 includes a fixed blade 92 composed of a finger-like lower blade 92A having a plurality of narrow blade widths and long blade lengths for holding a stock source such as cereals cut by the horizontal blade device 50, and a fixed blade. From a triangular top blade 91A having a wide blade width and a short blade length, which slides in a left-right direction through a second mower plate 93 such as an angle steel member connected to the rear portion of 92, and a groove formed in the fixed blade 92. It is comprised from the movable blade 91 which becomes. In plan view, the cutting edge of the lower blade 92A extends forward from the tip of the upper blade 91A, and the tip of the lower blade 92A is formed at an angle of about 30 degrees. On the other hand, the cutting edge of the upper blade 91 is formed at about 60 degrees, and the cutting edge of the upper blade 91 and the extending portion of the lower blade 92 that hold the stock source such as cereals cut by the horizontal cutting blade device 50. Has a pinching angle of about 30 degrees and is formed with a small pinching angle with respect to a normal clipper blade.

  The front end portion of the swing arm 94 is connected to a swing shaft 94A that is attached to the base of the movable blade 91 and extends in the front-rear direction, and the rear end portion of the swing arm 94 is the swing arm 94 in a side view. Is connected to the tip of the shaft 24 so as to be in a posture substantially orthogonal to the shaft 24. In order to secure a large space on the front side of the traveling device 3, when the second mower device 90 is in the lowest lowered position, the extension of the virtual axis of the swing shaft 94 </ b> A in the side view is the crawler of the traveling device 3. It is preferable to intersect the front surface at a right angle.

  The rotation of the engine E is transmitted to the shaft 24 through the sprocket 25A, the conversion mechanism 25B, and the like. The rotation of the engine E transmitted to the input side of the conversion mechanism 25B is converted into reciprocating rotation by a declination shaft portion provided at a fixed angle at the base portion of the conversion mechanism 25B, and the shaft connected to the output side 24 is reciprocally swung around the axis of the shaft 24. As the shaft 24 reciprocally swings, the tip end portion of the swing arm 94 swings back and forth in the left-right direction around the rear end portion of the swing arm 94, and the movable blade 91 is a groove formed by the fixed blade 92. Slide left and right.

As shown in FIG. 9, the second more device 90 is supported by a left lifting frame 95 (first lifting frame), an intermediate lifting frame 96 (third lifting frame), and a right lifting frame 97 (second lifting frame). Yes. When the second mower device 90 is small, light, or the like, the second mower device 90 is supported by the left lifting frame 95 and the right lifting frame 97 as shown in FIG. 10 in order to reduce the number of parts. You can also.
The left elevating frame 95 includes a front / rear frame 95A extending in the front / rear direction and a left / right frame (connecting frame) 95B extending from the right surface of the front end of the front / rear frame 95A toward the right. The left and right frames 95B are provided substantially in parallel with the second mower plate 93 above the rear side of the second mower plate 93 of the second mower device 90, and the left and right frames 95B are provided at three intervals. It is connected to the rear surface of the second more plate 93 by a connecting frame 95C.
The base of the front / rear frame 95A is a front side located below the tip of the lift cylinder 5A that lifts and lowers the cutting pretreatment device 5 installed on the left frame 2L and the right frame 2R extending in the front / rear direction forming the body frame 2 It is attached to a boss portion that is rotatably mounted on a bearing portion 98 attached to the upper surface of the left end of the frame 2A.

  As shown in FIG. 7, the front / rear frame 95A extends downward in a straight line from the base toward the front end, and a shaft 24 having a swing arm 94 connected to the front end is provided at the lower part of the left surface of the front / rear frame 95A. A support portion 24B that supports reciprocating swinging is attached.

  The front end of the intermediate lifting frame 96 is attached to the upper surface of the substantially central portion in the left-right direction of the left and right frames 95B of the left lifting frame 95 by a fixing means such as welding, and the base extends in the front-rear direction to form the body frame 2 As shown in FIG. 9, the left side frame 2L and the front side frame 2A installed on the right side frame 2R are attached to the upper surface on the right side of the lifting cylinder 5A and on the left side of the transmission 3A for increasing or decreasing the rotation of the traveling device 3. The bearing portion (first bearing portion) 99 is attached to a boss portion that is rotatably mounted.

  As shown in FIG. 8, the intermediate elevating frame 96 has a straight line portion (third straight line portion) 96A extending linearly downward from the base portion and a straight line portion 96A to bypass the drive shaft 3B of the traveling device 3. A bending portion (third bending portion) 96B extending downward from the front end portion of the drive shaft 3B in a curved manner to reduce vibration and noise during driving of the second mower device 90. In order to shorten the length, as shown in FIG. 9, a straight line extends from the base portion to the tip portion between the lifting cylinder 5 </ b> A of the pre-cutting processing device 5 and the transmission 3 </ b> A of the traveling device 3.

  The front end portion of the right elevating frame 97 is attached to the upper surface of the center portion of the right side of the left and right frames 95B of the left elevating frame 95 by fixing means such as welding, and the base portion extends in the front-rear direction to form the body frame 2. As shown in FIG. 9, the left side frame 2L and the front side frame 2A installed on the right side frame 2R are on the right side of the transmission 3A and on the left side of the step unit 8A used by the operator of the control unit 8 when boarding. It is attached to a boss part rotatably mounted on a bearing part (second bearing part) 100 attached to the upper surface.

  As shown in FIG. 8, the right elevating frame 97 has a straight portion (second straight portion) 97A and a straight portion 97A that extend straight downward from the base portion so as to bypass the drive shaft 3B of the traveling device 3. In order to prevent contact with the driver and to shorten the length of the right elevating frame 97. The curved portion (second curved portion) 97B extends downward from the front end of the drive shaft 3B in a curved shape on the front side of the drive shaft 3B. In addition, as shown in FIG. 9, the space between the transmission 3 </ b> A of the traveling device 3 and the step portion 8 </ b> A of the control unit 8 extends in a straight line from the base portion toward the tip portion.

  In order to easily attach and detach the second mower device 90, the bearing portion 98 is preferably formed in a split structure that is divided into two in the vertical direction, and the bearing portions 99 and 100 are preferably formed in a split structure that is split in two in the front-rear direction. It is. In order to reduce the vibration and noise of the operating second mower device 90, it is also preferable to provide a connection plate that connects the upper surfaces of the left and right frames 95B of the left lifting frame 95 and the right surface of the right lifting frame 97.

In order to facilitate the maintenance and inspection work of the secondmore device 90, as shown in FIG.
The front part of the connection frame 95C attached to the left and right sides of the upper surface of the second more plate 93 and the upper part of the support member 112 rotatably attached to the support shafts 111 attached to the left and right sides of the upper surface of the second more plate 93. The support member 112 is connected by a compression spring 113 that biases it counterclockwise, and when the second mower device 90 is maintained or inspected, the support member 112 is rotated clockwise to project downward, and the second mower device 90 is It is preferable to support it.
Further, in order to easily move the second mower device 90 to a higher position by engaging the second lifting guide 45 with the engagement pin 48 provided on the upper surface of the left and right frames 95B, the support member 112 is moved clockwise. It is preferable to rotate and lift the second more device 90.

(Lifting guide)
In order to raise and lower the second mower device 90 in conjunction with the raising and lowering of the feeder house 20 of the pre-cutting processing device 5, as shown in FIGS. A lifting guide 70 made of a steel material in which a long hole 72 is formed along the vertical direction is rotatably attached to the provided pin 71.
When the second mower device 90 is moved up and down in conjunction with the lifting and lowering of the feeder house 20 of the pre-cutting processing device 5, a guide pin 73 erected on the left surface of the frame body is provided in the feeder house 20 and the elongated hole of the lifting guide 70 72. That is, when the feeder house 20 of the pre-cutting processing device 5 is raised, the lifting guide 70 is moved upward while the guide pin 73 is engaged with the upper end of the elongated hole 72 formed in the lifting guide 70. As a result, the left elevating frame 95 and the like can swing upward about the bearing portion 98 to raise the second mower device 90.

  Next, in order to stably maintain the hanging posture of the second mower device 90, the second mower device 90 is moved up and down by the two left and right first lifting guides 75 and the second lifting guide 45 as shown in FIG. The configuration will be described.

As shown in FIGS. 14 and 18, the first lifting guide 75 disposed on the right side of the frame of the feeder house 20 of the pre-harvest processing device 5 is attached to the middle portion in the width direction on the upper surface of the left and right frames 95 </ b> B. Further, a pin 76 extending in the left-right direction is rotatably mounted, and a long hole 77 is formed in the side portion along the up-down direction.
A guide pin 78 extending in the left-right direction is erected on the front portion of the right surface 20 </ b> R of the frame of the feeder house 20, and the tip of the guide pin 78 is a long hole 77 formed in the side portion of the first lifting guide 75. Is inserted.
When the feeder house 20 of the pre-cutting processing device 5 is raised to a height higher than a predetermined level, the guide pin 78 engages with the upper end of the long hole 77 to move the first lifting guide 75 upward. As a result, the left and right frame 95B swings upward about the bearing portion 98 and the like on which the left elevating frame 95 and the like are rotatably mounted, thereby moving the second mower device 90 upward.

On the other hand, as shown in FIGS. 15 and 18, the second lifting guide 45 disposed on the left side of the frame of the feeder house 20 of the pre-cutting processing device 5 has an upper portion in front of the left surface 20 </ b> L of the frame of the feeder house 20. A pin 46 extending in the left-right direction is rotatably mounted on the part, and a long hole 47 is formed in the side part along the vertical direction over substantially the entire length of the second lifting guide 45.
When the feeder house 20 of the pre-cutting device 5 is raised to a predetermined height or more by the engaging pin 48 extending in the left-right direction attached to the left end of the upper surface of the left and right frame 95B, the second lifting guide 45 long holes 47 are fitted into the engaging pins 48. Thereby, the second lifting device 75 is arranged by the first lifting guide 75 arranged on the right side of the frame body of the feeder house 20 of the pre-cutting processing device 5 and the second lifting guide 45 arranged on the right side of the frame body of the feeder house 20. 90 can be raised to a predetermined height, and the rising posture of the second mower device 90 can be stably maintained. Further, deformation of the first lifting guide 75 and the second lifting guide 45 due to an external force such as a twisting force applied to the first lifting guide 75 and the second lifting guide 45 can be suppressed. When the second lifting guide 45 is not used, the second lifting guide 45 is rotated clockwise around the pin 46, and the other end of the long hole 47 is erected on the left surface of the left plate of the auger frame 31. The holding pin 49 is fitted.

FIG. 17 also shows that the raised position where the second mower device 90 is lifted by the second lifting guide 45 is higher than the raised position where the second mower device 90 is lifted by the first lifting guide 75 (on the back of the pre-cutting processing device 5). The configuration in which the ascending position of the second mower device 90 can be changed in two stages by setting (to the close state) is shown.
When the second mower device 90 is held at a low position with respect to the pre-cutting processing device 5, the second mower device 90 is lifted only by the first lifting guide 75. Further, when the second mower device 90 is held at a high position with respect to the pre-cutting processing device 5, the second lifting guide 45 and the second mower device 90 are connected. When the second lifting guide 45 is used for lifting the second mower device 90, as shown in FIG. 16, the mowing pretreatment device 5 is raised to lift the second mower device 90 to a predetermined height, and then supported. The member 112 is rotated downward in the clockwise direction to regulate the lowering of the second mower device 90. Then, as shown in FIG. 17, the mowing pretreatment device 5 is lowered and brought close to the second mower device 90, and the engagement provided on the upper surfaces of the left and right frames 95 </ b> B in the long holes 47 of the second lifting guide 45. The engaging pin 48 is engaged, and the second lifting device 75 is raised to a position higher than the raised position where the second more device 90 is lifted by the first lifting guide 75.

(Power transmission)
As shown in FIG. 10, the power output from the engine E is input to the hydraulic continuously variable transmission 10 that drives the traveling device 3, and a part of the power output from the hydraulic continuously variable transmission 10 is obtained. The power is transmitted to the pulley 26A through the transmission belt 11A. The pulley 26 </ b> A is attached to a shaft 26 disposed at the rear part of the feeder house 20. The rotation transmitted to the pulley 26A is transmitted to the sprockets 26C, 26D, 26E, and 26F via the shaft 26. Note that the shaft 26 is installed in a left-right orientation at a front portion of the machine body frame 2, and the pre-cutting processing device 5 rotates up and down around the shaft 26.
Sprockets 26C and 26D and a pair of left and right sprockets (not shown) attached to a shaft 22 rotatably mounted on the front portion of the feeder house 20 are used for conveying left and right cereals with a large number of lugs. The chains 12A and 12B are wound around, and the power is transmitted to the sprockets 26C and 26D, whereby the chains 12A and 12B are driven. Thereby, the cereals conveyed to the feeding port 32 in front of the feeder house 20 can be conveyed to the threshing device 4 provided at the rear.

The rotation transmitted to the sprocket 26E is transmitted to the sprockets 27A and 28A via the chain 12C. The sprockets 27A and 28A are attached to shafts 27 and 28 that are rotatably supported on the left side of the feeder house 20, respectively.
The rotation transmitted to the sprocket 27A is transmitted to the sprocket 27B via the shaft 27. The rotation transmitted to the sprocket 27B is transmitted to the sprocket 34A via the chain 12D. The sprocket 34 </ b> A is attached to a shaft 34 that is installed on both left and right side plates of the auger frame 31 and is equipped with a scraping auger 33. As a result, the rotation of the engine E is transmitted to the take-in auger 33, and the cereals that have been taken into the auger device 30 by the take-in device 60 or the like can be transferred to the feed port 32 in front of the feeder house 20.

The rotation transmitted to the sprocket 34A is transmitted to the sprocket 34B via the shaft 34. The rotation transmitted to the sprocket 34B is transmitted to the sprocket 68B attached to the right end of the shaft 68 via the chain 12E. The shaft 68 is installed on the left and right side plates of the auger frame 31. The rotation transmitted to the sprocket 68B is transmitted via a shaft 68 to a pulley 68A attached to the right end of the shaft 68.
The rotation transmitted to the pulley 68 </ b> A is transmitted to a pulley 62 </ b> A attached to a shaft 62 that is rotatably mounted on the tip of the arm 63 of the driving device 60 via the transmission belt 11 </ b> C. The shaft 62 is equipped with a take-up reel 61, whereby the rotation of the engine E is transmitted to the take-up reel 61, and the cereals that have fallen on the field, the cereals having a low length, etc. are raked into the auger device 30. be able to.

The rotation transmitted to the sprocket 28A is transmitted to the conversion mechanism 28B via the shaft 28.
The conversion mechanism 28B is a device that converts the rotation of the shaft 28 connected to the input side into the reciprocating swing of the arm 29A connected to the pin 28P on the output side.
The reciprocating swing transmitted to the arm 29A is transmitted to the swing arm 54 of the horizontal cutting blade device 50 and the swing arm 84 of the vertical cutting blade device 80 through the shaft 29 connected to the arm 29A. As a result, the rotation of the engine E is transmitted to the movable blade 51 of the horizontal cutting blade device 50, and the stock of the cereal that has been raked by the rake reel 61 can be cut. In addition, the rotation of the engine E is transmitted to the movable blade 81 of the vertical cutting blade device 80, so that high-price cereals such as oil rape and rape can be cut.

The rotation transmitted to the sprocket 26F is transmitted to the sprocket 25A via the chain 12F. The sprocket 25 </ b> A is attached to a shaft 25 that is rotatably supported on the left side of the feeder house 20.
The rotation transmitted to the sprocket 25A is transmitted to the conversion mechanism 25B via the shaft 25.
The conversion mechanism 25B is a device that converts the rotation of the shaft 25 connected to the input side into the reciprocating swing of the arm 24A connected to the pin 25P on the output side.
The reciprocating swing transmitted to the arm 24A is transmitted to the swing arm 94 of the second mower blade device 90 via the shaft 24 connected to the arm 24A. As a result, the rotation of the engine E is transmitted to the movable blade 91 of the second mower blade device 90 and can be cut so that the height of the stock of the cereal cut by the side blade device 50 is further lowered.

  The present invention can be used for a general-purpose combine harvesting pretreatment apparatus.

2 Body frame 3 Traveling device 3A Transmission 3B Drive shaft 5 Cutting pretreatment device 5A Lifting cylinder 8 Control unit 8A Step unit 20 Feeder house 20L Left surface 20R Right surface 45 Second lifting guide 50 Horizontal cutting blade device 75 First lifting guide 90 Second more Device 95 Left lifting frame (first lifting frame)
95B Left and right frame (connection frame)
96 Intermediate lifting frame (third lifting frame)
96A straight part (third straight part)
96B bending portion (third bending portion)
97 Right lifting frame (second lifting frame)
97A Straight part (second straight part)
97B bending portion (second bending portion)
99 Bearing part (first bearing part)
100 Bearing part (second bearing part)

Claims (7)

A cutting blade device (50) for cutting planted cereals in the field on the front side of the body frame (2) provided with the left and right traveling devices (3, 3) and a control unit (8) on which the operator is boarded. A pre-cutting processing device (5) provided with a feeder house (20) for conveying cereals cut by the cutting blade device (50) toward the threshing device (4), and a rear side of the cutting blade device (50) A combine with a secondmore device (90) for cutting the residue after cutting in position,
A first lifting guide (75) and a second lifting guide (45) for raising and lowering the second mower device (90) in conjunction with the raising and lowering of the cutting pretreatment device (5) are provided,
The upper part of the first lifting guide (75) is engaged with the left and right side surfaces (20R) of the feeder house (20),
The combine characterized by engaging the upper part of the said 2nd lifting guide (45) with the side surface (20L) of the left-right other side of a feeder house (20).   The configuration in which the lifting position of the second mower device (90) by the second lifting guide (45) is higher than the lifting position of the second mower device (90) by the first lifting guide (75). Combine. A plurality of lifting frames (95, 96, 97) that support the secondmore device (90) so as to be vertically movable can be attached to the body frame (2) at intervals in the left-right direction;
Of the plurality of lifting frames (95, 96, 97), the first lifting frame (95) located on the opposite side of the control section (8) is disposed outside the traveling device (3) on the left and right side. And
Of the plurality of lifting frames (95, 96, 97), a second lifting frame (97) positioned on the side of the control unit (8) is used as a transmission (3A) for driving the left and right traveling devices (3, 3). The combine according to claim 1 or 2, which is arranged between the control unit and the control unit (8).   A third elevating frame (96) provided between the first elevating frame (95) and the second elevating frame (97) has an elevating cylinder (5A) for elevating and lowering the pre-cutting processing device (5) and the transmission ( The combine according to claim 3, which is arranged between 3A) and 3A).   The combine according to claim 3 or 4, further comprising left and right connecting frames (95B) for connecting intermediate portions of the plurality of lifting frames (95, 96, 97).   A second bearing portion (100) to which a boss portion for connecting a base portion of the second elevating frame (97) to the body frame (2) side is mounted, and a base portion of the third elevating frame (96) is connected to the body frame (2 The combine according to claim 4 or 5, wherein each of the third bearing portion (99) to which the boss portion connected to the) side is mounted has a structure that can be divided in the front-rear direction.   The second elevating frame (97) includes a second straight portion (97A) extending linearly downward from a base portion on the second bearing portion (100) side, and a second straight portion (97A) of the second straight portion (97A). A second bending portion (97B) that is curved downward is formed around the front side of the drive shaft (3B) that drives the traveling device (3, 3) from the tip, and is formed on the third elevating frame (96). Is a third straight portion (96A) extending linearly downward from the base portion on the third bearing member (99) side, and the drive shaft (3B) from the tip of the third straight portion (96A). The combine according to any one of claims 3 to 6, wherein a third bending portion (96B) that is curved downward while bypassing the front side is formed.

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