JP6437360B2 - Combine - Google Patents

Description

  The present invention relates to a combine, and more particularly, to a combine having a large number of cutting lines such as 8-cutting.

  Combines with a large number of cutting lines, such as 8-cutting, increase the cutting width (width) by the cutting part and exceed the regulation width when traveling on the road. In such a case, there is a problem that the vehicle cannot travel on the road as it is.

  Conventionally, both the front and rear facing frames located at both ends of the cutting width direction are removed from the plurality of front and rear facing frames extending in the longitudinal direction of the machine body to support the plurality of weeding tools of the cutting unit, and the total width in the cutting width direction is removed. There is a configuration in which a long cutting blade is removed so that the lateral width can be within a predetermined width (see, for example, Patent Document 1).

JP 2009-278902 A

  In the above-mentioned conventional configuration, in the cutting operation, eight cultivated cereals can be cut at a time and work efficiency can be improved. However, when running on the road after completion of the operation, a large-sized device is used. It is necessary to remove the cutting blades and to remove the front-rear frames at both ends of the cutting width direction. In addition, it has been necessary to remove the pulling device at the both ends of the cutting width direction, the support member for supporting the cutting blade, and other small members, which requires laborious work. . Each removed device had to be stored separately from the combine body, and management of the removed devices was troublesome.

  Therefore, there has been a demand for a combine that can reduce the lateral width when not working without increasing the number of cutting lines and requiring troublesome and labor-intensive work.

The characteristic configuration of the combine according to the present invention is as follows:
The front part of the fuselage is equipped with a harvesting part that harvests multiple sown cereal grains,
The cutting unit includes a plurality of raising devices corresponding to the number of cutting lines, a cutting device that cuts the planting cereal stock, and a transport device that transports the cutting cereal toward the rear of the machine body, In the middle of the cutting width direction, it is divided and formed into one side cutting part divided body and the other side cutting part divided body,
The one-side cutting part divided body is in a normal use state in which the one-side cutting part divided body is arranged in a series in the cutting width direction with respect to the other-side cutting part divided body, and the front side of the one-side cutting part divided body and the other-side cutting part divided body Over the folded state that folds in a state where the front faces each other , it is supported rotatably around a vertical pivot axis corresponding to the midway position ,
The pulling device is provided in an upright posture in a tilted state where the lower end side is located on the front side of the aircraft and the upper end side is located on the rear side of the aircraft,
The pivot axis is set parallel to the inclined surface of the pulling device and on the front side of the machine body from the pulling device .

  According to the present invention, the cutting part is divided into the one-side cutting part division body and the other-side cutting part division body at a midway position in the cutting width direction. When the cutting operation is performed, a good cutting operation can be performed in a normal use state in which the one-side cutting portion division body is aligned with the other-side cutting portion division body in the cutting width direction. When it is necessary to reduce the width of the vehicle for traveling on the road, etc., rotate the one-side cutting part division body around the pivot axis in the vertical direction to cut the front and other side cutting parts of the one-side cutting part division body. By switching to a folded state where the front surface of the divided body is opposed to each other, the lateral width can be reduced.

  When folding the cutting part in this way, it can be handled by rotating the one-side cutting part divided body around the vertical axis of rotation, so large components etc. can be removed individually or multiple Troublesome work such as separately managing the devices is unnecessary.

  Therefore, according to the present invention, it is possible to reduce the width when not working without increasing the number of cutting lines and without requiring troublesome work.

In addition, according to the present configuration, the one-side cutting part divided body is switched between the normal use state and the folded state by rotating around the rotation axis provided in the upright posture in the tilted backward state. Become.

  As a result, compared to the configuration in which the pivot axis is set to the axis along the vertical direction, when the one-side cut part divided body is switched from the normal use state to the folded state, the cutting part in the normal use state The protrusion amount to the front side of the machine body up to the position of the front end portion of the cutting portion in the folded state with respect to the position of the front end portion can be reduced.

  Therefore, the cutting part can be folded with the overall length in the longitudinal direction of the machine body in the folded state as compact as possible.

In the present invention,
The cutting part is provided with a front-rear frame corresponding to each of the plurality of pulling devices, extending in the longitudinal direction of the machine body and coupled to the lower end of each pulling device,
The front-rear frame provided in the one-side cutting part division body and the front-rear frame provided in the other-side cutting part division body are displaced in the cutting width direction in plan view in the folded state. It is preferable to overlap in side view.

  According to this configuration, when the one-side cut part divided body is switched to the folded state, the front-and-back frame provided in the one-side cut part divided body and the front-and-back frame provided in the other-side cut part divided body are provided. Are displaced in the cutting width direction in a plan view, and overlapped in a side view.

  That is, in the folded state, the front-side and the other-side cutting of the one-side cutting part divided body in a state where the front and rear facing frames provided in the one-side cutting part divided body and the other-side cutting part divided body do not interfere with each other. It can be folded over so that the front surface of the divided body faces.

  As a result, when switching to the folded state, the troublesome work of removing the front-rear frame is unnecessary.

In the present invention,
In the cutting part,
Corresponding to each of the plurality of pulling devices, a longitudinal frame extending along the longitudinal direction of the body and connected to the lower end of each pulling device;
An upper lateral frame extending along the cutting width direction over the upper ends of each of the plurality of pulling devices and connected to the upper ends of the pulling devices;
A lower side frame that is located at the lower part of the rear side of the fuselage and extends over the entire width of the cutting width direction;
A vertically oriented frame that connects each of both ends of the cutting width direction of the lower side frame and each of both ends of the cutting width direction of the upper side frame; and
The front-rear frame positioned at both ends of the cutting width direction, the vertical frame, and the pulling device positioned at both ends of the cutting width direction are arranged in a substantially triangular shape in a side view of the body,
Frame structure in each of the one-side cutting part division body and the other-side cutting part division body by the front-rear facing frame, the up-down direction frame, the upper side horizontal frame, the lower side horizontal frame, and the pulling device. It is preferred that the body is constructed.

  According to this configuration, each of the plurality of pull-up devices is connected to the upper side horizontal frame, and the lower end of each of the plurality of pulling devices is connected to the front / rear frame extending in the longitudinal direction of the body. And each of the both ends of the cutting width direction of a lower side horizontal frame and each of the both ends of the cutting width direction of an upper side horizontal frame are connected by a vertical frame. The front-rear frame, the vertical frame, and the pulling device positioned at both ends of the cutting width direction are arranged in a substantially triangular shape when viewed from the side of the machine body, and are connected to each other.

  Each of the one-side cut part divided body and the other-side cut part divided body has a strong frame structure in which a front-rear frame, a vertical frame, and a pulling device are connected in a substantially triangular shape in a side view of the body. Is configured.

  Therefore, since each of the one-side cutting part division body and the other-side cutting part division body has a strong frame structure, the cutting part can maintain its posture in a stable state in both the normal working state and the folded state. It is possible to perform cutting work and transportation work well.

In the present invention,
The cutting portion includes a connecting frame extending in the vertical direction across the upper side lateral frame and the front / rear direction frame in the vicinity of the division location in each of the one side cutting portion division body and the other side cutting portion division body. Prepared,
Preferably, each of the connecting frames is attached with a rotation support member that supports the one-side cutting part divided body so as to be rotatable around the rotation axis with respect to the other-side cutting part divided body. is there.

  According to this configuration, the rotation support member is attached to the connecting frame provided in the vicinity of the division location, and the rotation support member rotates the one-side cutting part divided body with respect to the other-side cutting part division body. It is supported freely.

  Since the connecting frame is provided so as to extend in the up-down direction across the upper side frame and the front-rear frame, both the upper and lower sides are stably supported. With such a connecting frame, the one-side reaping part divided body can be rotated in a stable state, and the posture switching operation can be performed satisfactorily.

It is a whole side view of a combine. It is a whole top view of a combine. It is a front view of a cutting part. It is a side view of the cutting part of a normal use state. It is a side view of the cutting part in a folded state. It is the simplified top view of the conveying apparatus of a normal use state. It is the simplified top view of the conveying apparatus of a folded state. It is a figure which shows the transmission structure of a cutting part. It is a partial longitudinal rear view of the pulling device. It is a top view of a cutting device. It is a vertical front view of a raking part and a cutting device. It is a partial top view of a cutting device. It is a partially longitudinal front view of a cutting device. It is a perspective view of the division | segmentation support frame body by the side of folding. It is a side view of the division | segmentation support frame body by the side of folding. It is a perspective view of the division | segmentation support frame body by the side of folding. It is a perspective view of another division | segmentation support frame. It is a side view of another division | segmentation support frame. It is a whole perspective view of a support frame. It is a front view which shows the weeding state of the planting cereal. It is a disassembled perspective view of a rotation support part.

  Hereinafter, embodiments of a combine according to the present invention will be described with reference to the drawings.

〔overall structure〕
As shown in FIGS. 1 and 2, the combine according to the present invention includes a traveling machine body 1 and a reaping part 2 for reaping eight sown cereal grains. The cutting unit 2 is connected to the traveling machine body 1 so as to be swingable up and down around the horizontal axis P1 and is provided so as to be driven up and down by a lift cylinder 3.

  In this embodiment, when the front-rear direction of the body is defined, the side on which the cutting unit 2 is provided in FIGS. 1 and 2 is defined as the front side of the body, and the opposite side is defined as the rear side of the body. When defining the left and right direction of the body, it is defined that the right hand side of the driver viewing the traveling direction is the right side of the body and the left hand side is the left side of the body in the forward traveling state in which the vehicle advances forward. Therefore, the width direction of the airframe corresponds to the left-right direction of the airframe.

The traveling machine body 1 is provided with a pair of left and right crawler traveling devices 4, a driving unit 5 is provided on the right side (one side in the width direction) of the front part of the machine body, and the cereals harvested by the reaping unit 2 are disposed behind the driving unit 5. A threshing device 6 for threshing processing and a grain tank 7 for storing the grains obtained by the threshing processing are provided in a state of being arranged in the horizontal direction of the machine body. The operation unit 5 is provided in a state covered with the cabin 5a.
Although not shown, the threshing device 6 handles the tip side in the inside of the handling chamber while holding the stock of the harvested cereal straw conveyed from the reaping part 2 by the threshing feed chain 8 and transporting it. Sorting processing is performed on grains and dust by a sorting unit provided at the bottom. The grain is stored in the grain tank 7 and the dust is discharged out of the machine. The grain stored in the grain tank 7 can be discharged to the outside by the discharging device 7A. After the threshing process, the waste straw is shredded by the shredding device 9 and then discharged outside the machine.

  The cutting part 2 has a plurality of (9) weeding tools 10 for weeding the planted cereals of the target cutting line at the front end, and a plurality (8) corresponding to the number of cutting lines behind it. Elevating device 11, cutting device 12 for cutting the planted cereal stock, and transport device 13 for transporting the harvested cereal toward the rear of the machine body.

  Among the nine weeding tools 10, the two weeding tools 10 located on the laterally outermost side of the weeds split the planted cereals into the harvesting target and the non-targeting target, and cut the harvesting target stalks into the weeding It is introduced into an erecting path adjacent to the tool 10, and the non-target cereals are elicited and guided laterally outside the path. The other weeding tools 10 split the cereals to be planted on the two planting strips on both sides of the weeding tool 10 and introduce them into the raising paths on both sides of the weeding tool 10.

  The mowing unit 2 is in a state of projecting to the left larger than the crawler traveling device 4 on the left side (uncutting side), and there is no fear of stepping over the uncut cereal husks by the crawler traveling device 4 and performs the harvesting operation well. (See FIG. 6).

[Raising device]
As shown in FIGS. 1 and 4, the pulling device 11 is provided in an upright posture in a tilted rearward state in which the lower end side is located on the front side of the body and the upper end side is located on the rear side of the body. As shown in FIG. 9, the raising device 11 includes a driving sprocket 15 and a tensioning sprocket 16 located on the upper side, and a driven sprocket 17 located on the lower side inside the raising case 14 that also serves as a frame. An endless rotating chain 18 wound around each of the endless rotating chains 18 is provided, and the endless rotating chains 18 are provided with a plurality of pulling claws 19 at predetermined intervals along the longitudinal direction. The pulling claw 19 is supported by the endless rotating chain 18 so that the posture can be freely changed between a standing posture and a lying posture.

  As shown in FIG. 9, the elevating drive shaft 20 extending in the left-right direction is provided over the upper portions of the eight elevating devices 11. The power from the pulling drive shaft 20 is transmitted to the drive sprocket 15 via the relay transmission shaft 22 provided in the relay transmission case 21. Although not shown, the raising drive shaft 20 has a hexagonal cross section and is configured to transmit power in a square fitting state.

  The pulling device 11 includes a pulling action path H1 that moves while the pulling claw 19 protrudes sideways, and a non-action return path H2 that moves when the pulling claw 19 is retracted. That is, one of the vertical movement paths on the left and right sides of the endless rotation chain is raised and set as the action path H1, and the opposite side is set as the non-action return path H2. Although not shown in the drawings, the raising action path H1 is provided with a guide plate for erecting and guiding the raising claw 19 at a location where the endless rotating chain passes.

  The plurality of pull-up devices 11 are arranged side by side in a state in which the pull-up action paths H1 are close to each other and the non-action return paths H2 are close to each other. Each pulling device 11 is set to rotate so that the pulling claw 19 moves upward in the pulling action path H1. That is, the pulling devices 11 that are separated from each other are set so that the rotation directions of the endless rotation chain 18 are opposite to each other.

  In the pulling action path H1, the pulling device 11 configured as described above moves upward while the pulling claw 19 projecting sideways moves up and acts on the cereal, and when it reaches the rising end, it is detached from the cereal. The pulling case 14 descends the non-action return path H2 and pulls up to return to the action path H1 side. As a result, each pulling device 11 raises and processes the planted cereals introduced into the pulling route by the pulling claw 19 that moves upward and supplies it to the cutting device 12.

[Cutting device]
The cutting device 12 is formed in a long shape over the entire width in the left-right direction (corresponding to the cutting width direction) so as to act on the planted culms of all the cutting target strips (eight strips), and has a well-known structure clipper type cutting It consists of a blade.

  The cutting device 12 includes a left-side cutting portion 12A (corresponding to a cutting portion on the folding side) that acts on the left-side two cutting rows and a right-side cutting portion that acts on the right-side six cutting rows among the eight cutting rows. 12B (corresponding to other cutting parts).

The right cutting part 12B will be described.
As shown in FIGS. 10 and 11, the right cutting portion 12 </ b> B includes two sets of two clipper-type cutting blades 25 arranged in parallel in the left-right direction, and left and right cutting blades respectively driving the two sets of cutting blades 25. And a drive mechanism 26 (an example of a folding-side power transmission unit). As shown in FIG. 12, the left and right cutting blades 25 have a fixed blade 27 in which a large number of teeth 27 a are arranged in the left-right direction, and a large number of teeth 28 a in a state of sliding in contact with the upper side of the fixed blade 27. The movable blade 28, a receiving base 29 for receiving and supporting the fixed blade 27, and a plurality of knife clips 30 for preventing the movable blade 28 from being lifted up are provided.

  As shown in FIG. 10, a movable blade operation body 31 is provided near the outside of each of the left and right movable blades 28, and the movable blade 28 is fixed to the fixed blade by driving a cutting blade drive mechanism 26 that acts on the movable blade operation body 31. 27 is configured to reciprocate left and right along the lateral width direction of the machine body.

  The movable blade operating body 31 is provided with an engaging groove 32 having a U shape in plan view. The cutting blade drive mechanism 26 includes an arm 34 having an operation roller 33 engaged with the engagement groove 32 of the movable blade operation body 31 at one end, an interlocking rod 35 having one end connected to the other end of the arm 34, A drive rotator 36 that functions as a crank arm connected to the other end of the interlocking rod 35 is provided. Then, the rotational driving force of the driving rotating body 36 is converted into reciprocating power, and the movable blade 28 is driven to reciprocate left and right.

  By moving the movable blade 28 back and forth in the left-right direction, the planted culm is cut by the cooperation of the movable blade 28 and the fixed blade 27. The movable blades 28 of the left and right cutting blades 25 are configured to slide in the opposite directions so that the vibration associated with the sliding operation of the movable blade 28 is minimized.

  As shown in FIGS. 12 and 13, the upper and lower fixed blades 37 located above the movable blades 28 on both the left and right sides are provided at the abutting portion in the middle between the left and right cutting blades 25. Thus, in the abutting portion, the fixed blade 37 is positioned on the upper side, so that dust is prevented from being caught between the fixed blade 37 and the movable blade 28 at the abutting portion. The fixed blades 37 on the upper side are provided on the left and right cutting blades 25 respectively.

The left cut portion 12A will be described.
As shown in FIG. 10, the left-side cutting portion 12A includes a clipper-type cutting blade 38 having the same configuration as the cutting blade 25 in the right-side cutting portion 12B, and a cutting blade drive mechanism 39 (another power transmission) that drives the cutting blade 38. An example). Since the cutting blade 38 is the same as the cutting blade 25 of the right-side cutting portion 12B except that the number of cutting lines is different, detailed description thereof is omitted. The cutting blade drive mechanism 39 is also the same as the cutting blade drive mechanism 26 of the right-side cutting portion 12B, and thus detailed description thereof is omitted. As described above, the left cutting unit 12A and the right cutting unit 12B include the cutting blade drive mechanisms 26 and 39, respectively.

  The abutting portion between the left cutting blade 25 in the right cutting portion 12B and the cutting blade 38 in the left cutting portion 12A is an upper fixed blade located above the movable blade 28 in the same manner as the abutting portion in the right cutting portion 12B. 37 is provided. The upper fixed blade 37 is provided for each of the left cutting blade 25 in the right cutting portion 12B and the cutting blade 38 in the left cutting portion 12A. The movable blade 28 in the cutting blade 38 of the left cutting portion 12A is configured to slide in the direction opposite to the sliding movement direction of the movable blade 28 in the left cutting blade 25 in the right cutting portion 12B.

  The left-side cutting portion 12A and the right-side cutting portion 12B are each formed with a movable blade 28, a fixed blade 27, and a cradle 29, and are provided in a state of being closely arranged in the butted state. In a folded state, which will be described later, they are provided so as to be separable from each other.

[Conveyor]
As shown in FIGS. 4 and 6, the conveying device 13 includes a plurality of scraping portions 40 that scrape the harvested cereals by two strips while collecting them, and the first strip and the second strip from the right side. 1st intermediate conveyance part 41 which conveys the part of the harvested cereals to the left rear side, and conveys the second part of the third and fourth articles from the right side to the junction of the rear side 2nd intermediate conveyance part 42, 3rd intermediate conveyance part 43 which conveys the harvested cereal rice flour of the 5th article and the 6th article from the right side to the merge point, the 7th article and the 8th article from the right side The left intermediate portion, that is, the left intermediate portion 44 which conveys the harvested cereals of the left end portion, and the left intermediate portion which inherits the harvested cereals conveyed by the fourth intermediate transport portion 44 and conveys them to the junction Conveying and transporting part 45, conveys 8 reaped cereal meals joined at the confluence to the beginning of threshing feed chain 8 As a one-side guide unit that acts on the tip side of the harvested cereal mash that is transported by the supply transport unit 46, the first intermediate transport unit 41, and the harvested cereal mash that is joined at the joining point And a tip locking transport device 47.

  As shown in FIG. 6, the scraping unit 40 is positioned near the upper side of the cutting device 12 so as to be aligned and rotated in the left-right direction of the machine body. And a pair of projections endlessly positioned above the lower scoring device 50, and a lower scoring device 50 (an example of a grain kneading device). And an upper scraping device 52 comprising a rotating belt. And four sets of such a scraping part 40 are provided in the state aligned in the left-right direction (cutting width direction).

  The lower scraping device 50 scrapes between the pair of packers 48 and 49 the stock side of the two reaped cereals that have been cut by the cutting device 12, and feeds them from between the packers toward the rear of the machine body. The lower scraping device 50 is configured as a drive-side packer to which power is transmitted from one of the pair of packers 48 and 49, and the other packer 49 is engaged with the drive-side packer 48. It is configured as a driven side packer to be driven.

  The pair of endless rotating belts 51 in the upper scraping device 52 are configured to rotate by transmitting power from the left and right packers 48 and 49, respectively, and lock the stock side of the two reaped cereal grains. Scraped by conveyance and sent out backward.

  As shown in FIG. 11, the three sets of the lower scraping devices 50 located on the right side are arranged so that the packers 48 and 49 are located at the same vertical height, and are located at the left end. The lower scraping device 50 of the set is arranged to be positioned at a lower level than the other lower scraping devices 50. Although the transmission structure will be described later, the three sets of the scraping portions 40 located on the right side are driven by power from the same transmission shaft, and thus rotate synchronously. Therefore, even if the packers 48 and 49 of the adjacent lower raking devices 50 partially overlap in plan view, a good meshing state can be maintained.

  As shown in FIGS. 6, 7, and 8, the first intermediate transport unit 41 is directed to the left rear side while sandwiching the stocks of the two cropped cereals that have been scraped by the rightmost scraping unit 40. The first stock holding and conveying device 53 and the first half part of the tip locking conveying device 47 are configured.

  The first stock holding and conveying device 53 includes an endless rotating chain wound around a plurality of sprockets. Although not shown, a holding rail is provided to face the endless rotating chain, and the stock of the harvested cereal culm is held by the endless rotating chain and the holding rail and conveyed to the joining point.

  The tip locking conveying device 47 has an endless rotating chain 57 with locking projections wound around a plurality of sprockets, and a tip guide plate 58 for guiding the tip of the harvested cereal rice bran while placing it (FIGS. 1 and 4). Reference). The endless rotation chain 57 is provided with a locking projection 59 with a predetermined pitch, and the endless rotation chain 57 rotates to lock the tip of the harvested cereal pod and the tip of the harvested cereal cocoon Is conveyed to the left rear while being guided by the tip guide plate 58. The latter half portion of the tip locking and conveying apparatus 47 is configured to perform locking and locking on the tip side with respect to the harvested cereal grains corresponding to the eight strips joined at the joining point.

  The 2nd intermediate conveyance part 42 conveys it toward the confluence | merging point of the back side, pinching | intersecting the stock of the harvested cereal rice cake of the two strips raked by the 2nd rake part 40 from the right end. An original clamping and conveying device 61 and a second intermediate tip locking transport device 62 that transports toward the rear side while locking and transporting the tip side of the two chopped cereal meals are provided.

  The second intermediate stock holding and conveying device 60 includes an endless rotating chain wound around a plurality of sprockets. Although not shown, a holding rail is provided to face the endless rotating chain, and the stock of the harvested cereal culm is held by the endless rotating chain and the holding rail and conveyed to the joining point.

  The second intermediate tip locking transport device 61 includes an endless rotating chain with a locking projection wound around a plurality of sprockets, and the endless rotating chain rotates to lock the tip side of the harvested cereal culm. Then, it is conveyed to the confluence on the rear side.

  The 3rd intermediate conveyance part 43 conveys it toward the confluence | merging point of the back side, pinching the stock | stump | stock_stock of the harvested cereal rice cake of the two strips raked by the 3rd raking part 40 from the right end. The former clamping conveyance apparatus 67 and the 3rd intermediate | middle tip locking transport apparatus 68 which conveys toward the back side, latching and transporting the head side of the chopped grain halves for two stalks are provided.

  The third intermediate stock holding apparatus 67 includes an endless rotating chain wound around a plurality of sprockets. Although not shown, a holding rail is provided to face the endless rotating chain, and the stock of the harvested cereal culm is held by the endless rotating chain and the holding rail and conveyed to the joining point.

  The third intermediate tip locking and conveying device 68 includes an endless rotating chain with locking protrusions wound around a plurality of sprockets. The endless rotation chain is rotated and conveyed to the joining point on the rear side while locking the tip side of the harvested cereal culm.

  The fourth intermediate transport unit 44 includes a fourth intermediate stock source sandwiching and transporting device 74 that transports the stocks of the two reaped harvested rice cakes scraped by the leftmost scraping unit 40 toward the rear. I have. The fourth intermediate stock holding apparatus 74 includes an endless rotating chain wound around a plurality of sprockets. Although not shown, a holding rail is provided opposite to the endless rotating chain, and the stock of the harvested cereal rice bran is held between the endless rotating chain and the holding rail and conveyed backward.

  The left merging / conveying unit 45 inherits the harvested cereal grains conveyed by the fourth intermediate conveying unit 44 and conveys toward the merging point on the left side while nipping the stock and And a left side joining tip locking transport device 78 that transports the cutting tip side of the harvested cereal rice cake toward the rear side while locking and transporting it.

  The left side merge stock holding and conveying device 77 includes an endless rotating chain wound around a plurality of sprockets. Although not shown, a holding rail is provided to face the endless rotating chain, and the stock of the harvested cereal culm is held by the endless rotating chain and the holding rail and conveyed to the joining point.

  The left joining point locking transport device 78 includes an endless rotating chain with locking protrusions wound around a plurality of sprockets. The endless rotation chain is rotated and conveyed to the joining point on the rear side while locking the tip side of the harvested cereal culm.

  The supply conveyance unit 46 is conveyed by the first intermediate conveyance unit 41, the second intermediate conveyance unit 42, the third intermediate conveyance unit 43, and the left merging conveyance unit 45, and the harvested cereal straw stock joined at the merge point A handling device 84 for handling depth that feeds the threshing feed chain 8 while sandwiching the original, and a delivery supply device 85 that delivers the harvested cereal mash from the handling device 84 for handling depth to the start end of the threshing feed chain 8. And. Each of the handling depth conveying device 84 and the delivery supplying device 85 includes an endless rotating chain wound around a plurality of sprockets. Although not shown, a holding rail is provided opposite to the endless rotating chain, and the stock of the harvested cereal meal is held and conveyed by the endless rotating chain and the holding rail.

  Although not shown, the handling depth conveying device 84 is swingably supported so that the conveyance end side moves in the cocoon length direction with the conveyance start end side as a fulcrum, and the harvested cereal rice cake inherited from the junction is moved in the cocoon length direction ( By changing the position in the vertical direction), the depth of entry into the threshing device 6 can be changed and adjusted.

Next, the frame structure of the cutting unit 2 will be described.
The whole cutting part 2 is supported by a support frame F, and is supported by a support base 90 (see FIG. 4) on the machine body so as to be swingable around a horizontal axis P1. As shown in FIG. 19, the support frame F is configured by integrally connecting a plurality of frames as described below.

  As shown in FIGS. 4 and 19, a front and rear cylindrical support frame 91 that supports the entire cutting unit 2 so as to be movable up and down is provided. In this support frame 91, a laterally pivoting portion 92 provided on the base end side of the rear upper portion is supported by a support base 90 on the airframe side so as to be rotatable around a horizontal axis P1. The support frame 91 extends from the support base 90 toward the front lower side of the body.

A cylindrical lower side frame 93 extending in the left-right direction, that is, the cutting width direction, is connected to the front end portion of the support frame 91. A weeding frame 94 as a front-rear frame on both the left and right sides is connected to both ends of the lower lateral frame 93 in the lateral direction of the aircraft in a state of extending toward the front of the aircraft. In a state of being erected between the front and rear middle parts of the weeding frames 94 at both the left and right end parts, a rectangular tube-shaped cutting blade support frame 95 extending in the horizontal direction of the machine body is connected.
The cutting device 12 is supported by the cutting blade support frame 95.

  A plurality of weeding frames 94 (front and rearward facing frames) are provided at intervals between the weeding frames 94 at both left and right end parts, and the rear end part of the weeding frame 94 at the middle part is a cutting blade support frame 95. And is cantilevered toward the front of the aircraft. A total of nine weeding frames 94 are provided, and a weeding tool 10 is provided at the front end of each weeding frame 94.

  A cylindrical left and right vertical frame 96 is extended upward from the left end of the lower side horizontal frame 93. A rod-like right and left vertical frame 97 extends upward from the right end of the lower side horizontal frame 93. An upper lateral frame 98 is connected to the upper end of the left vertical frame 96 and the upper end of the right vertical frame 97. The upper side horizontal frame 98 extends in the left-right direction across the upper ends of the eight pulling devices 11 and is connected to the upper ends of the pulling devices 11.

  Each of the eight pulling devices 11 is connected to the upper side frame 98 on the upper side and connected to the weed frame 94 on the lower side. Accordingly, each pulling device 11 functions as a frame member for connecting the upper side horizontal frame 98 and the weeding frame 94 in a connected state.

  Although not described in detail, each pulling device 11 is supported integrally with the relay transmission case 21 so as to be rotatable relative to the upper side horizontal frame 98 around the horizontal axis. When the connection to the weeding frame 94 is released, the entire raising device 11 can be rotated about the lateral axis so that the front portion of the cutting unit 2 can be largely opened.

  When the pulling device 11 is oscillated and released, a load is applied to the upper side horizontal frame 98. To secure rigidity, the upper side horizontal frame 98 and the weeding frame 94 are connected to each other as shown in FIGS. A plurality of vertical auxiliary connecting rods 100 to be connected are provided. Further, an upper bypass frame 101 is provided that connects the upper end of the support frame 91 and the horizontal intermediate portion of the upper lateral frame 98 in a state of bypassing the upper side of the transport device 13.

  A plurality of types of frames as described above are connected to form a support frame F that supports the entire cutting unit 2. And in this support frame F, the weeding frame 94 located at both ends of the machine body width direction, the left and right vertical frames 96 and 97, and the pulling device 11 located at both ends of the machine body width direction are the machine body. They are arranged in a substantially triangular shape in a side view, and they are connected. As a result, a strong support structure is formed at both end portions in the body width direction.

[Transmission structure]
Next, a transmission structure for the cutting unit 2 will be described.
As shown in FIG. 4, the power after shifting the output of the engine (not shown) by the continuously variable transmission 102 for cutting is a lateral transmission provided inside the pivot portion 92 (see FIG. 17) of the support frame 91. It is transmitted to the shaft 103. Then, as shown in FIG. 8, power is transmitted from the lateral transmission shaft 103 through a front-rear power transmission shaft 104 provided inside the support frame 91.

  The power after the shift described above is transmitted from the front-rear power transmission shaft 104 to the lateral input shaft 105 provided in the lower lateral frame 93. Two sets of cutting blades 25 of the right cutting unit 12B of the cutting device 12 and one set of cutting blades of the left cutting unit 12A via both ends of the input shaft 105 and a branching unit 106 provided at the middle in the left-right direction. The power is transmitted to 38 respectively.

  Further, power is transmitted from the branch portion 107 in the middle of the input shaft 105 to the left merging / conveying portion 45, and the vertical orientation provided in the left vertical frame 96 from the branch portion 108 provided on the left side of the input shaft 105. Power is transmitted to each of the eight raising devices 11, the fourth intermediate conveyance unit 44, and the leftmost raking unit 40 via the longitudinal transmission shaft 109 serving as a relay shaft.

  As shown in FIG. 8, the power is branched from the middle of the vertical transmission shaft 109, and the power is transmitted to the fourth intermediate transport unit 44, which is the leftmost (fourth from the right) from the fourth intermediate transport unit 44. Power is transmitted to the scraping unit 40.

  A lateral pulling drive shaft 20 is provided across the upper portions of the pulling device 11 in a state extending over the entire lateral width along the upper lateral frame 98. Then, the power from the vertical transmission shaft 109 is shifted by the gear transmission mechanism 111 and then is raised and transmitted to the drive shaft 20. Power is transmitted from the pulling drive shaft 20 to each of the eight pulling devices 11.

  On the other hand, from the middle part of transmission of the power transmission shaft 104, the three sets of the scraping unit 40, the first intermediate transport unit 41, the second intermediate transport unit 42, the third intermediate transport unit 43, and the supply transport unit 46 located on the right side. Power is transmitted to each. Power is transmitted from the lateral transmission shaft 103 to the endless rotating chain 57 in the tip locking and conveying device 47.

  As shown in FIG. 8, the power is branched and transmitted to the first branch transmission shaft 113 at the first branch portion 112 provided in the middle of the transmission of the power transmission shaft 104, and the second branch intermediate shaft is transmitted from the first branch transmission shaft 113. Power is transmitted to each of the second intermediate stock holding and conveying device 60 and the second intermediate tip locking and conveying device 61 in the conveying unit 42. Then, the power of the second intermediate stock holding and conveying device 60 is transmitted to the second scraping unit 40 from the right side.

  The power is branched from the middle portion of the first branch transmission shaft 113 to the second branch transmission shaft 114, and the third intermediate stock former clamping transport device 67 and the third intermediate tip in the third intermediate transport portion 43 from the second branch transmission shaft 114. Power is transmitted to each of the locking and conveying devices 68. Then, the power of the third intermediate stock holding and conveying device 67 is transmitted to the third scraping unit 40 from the right end.

  The power is branched to the third branch transmission shaft 118 and the fourth branch transmission shaft 119 by the second branch portion 117 provided in the middle of the transmission of the power transmission shaft 104, and the first intermediate transport portion is supplied from the third branch transmission shaft 118. The power is transmitted to the first stock holding and conveying device 53 in 41, and the power of the first stock holding and conveying device 53 is transmitted to the rightmost raking unit 40. The power is transmitted from the fourth branch transmission shaft 119 to the handling depth conveying device 84.

  Accordingly, the leftmost set of scraping portions 40 is driven by the power transmitted from the power transmission shaft 104 via the input shaft 105 and the longitudinal transmission shaft 109, and the three sets of scraping portions located on the right side. The part 40 is driven by the power from the power transmission shaft 104 which is the same transmission shaft.

  [Cutting part split structure]

  The cutting part 2 is divided and formed into a one-side cutting part division 2A and another-side cutting part division 2B at a midway position in the cutting width direction, and the one-side cutting part division 2A is the other-side cutting part division 2B. On the other hand, in the normal use state arranged in a row in the cutting width direction and the folded state in which the front surface of the one-side cutting portion division body 2A and the front surface of the other-side cutting portion division body 2B face each other. It is supported so as to be rotatable about a corresponding up-and-down rotation axis X.

  Among the eight pulling devices 11, the mowing unit 2 is close to the non-action return path H2 of the second pull-up device 11 from the right end and the non-action return path H2 of the third pull-up device 11 from the right end. The pulling device 11, the cutting device 12, and the conveying device 13 are configured to be foldable around the axis X provided at the adjacent boundary L in the state of being. That is, the portion corresponding to the left two strips constitutes the folding side cut portion divided body 2A as the one side cut portion dividing body, and the portion corresponding to the right six strips is used as the other side cutting portion divided body. The other cutting part division body 2B is configured so that the folding-side cutting part division body 2A can be folded with respect to the other cutting part division body 2B.

  The folding side segment 2A on the folding side is in a normal use state (see FIGS. 1, 2, 4 and 6) arranged in a series in the left-right direction with respect to the other segment 2B, and the folding unit segment on the folding side. It is supported so as to be rotatable around an axis X provided at the boundary over a folded state (see FIGS. 5 and 7) in which the front surface of 2A and the front surface of the other cut portion division body 2B face each other.

  When the explanation is added, each of the raising device 11, the cutting device 12, and the conveying device 13 can be folded integrally around the axis X provided at the boundary L (see FIGS. 2 and 3). It is configured. A folding shaft core X is provided at the boundary L between the sixth pulling device 11 and the seventh pulling device 11 from the right end, and the two pulling devices 11 on the left side are divided on the folding side of the cutting part. The pulling device 11 corresponding to 2A, and the six pulling devices 11 on the right side correspond to the pulling device 11 corresponding to the other cutting part divided body 2B.

  The sixth raising device 11 and the seventh raising device 11 from the right end are adjacent to each other in a state where the non-action return paths H2 are close to each other, so that they rotate around the axis X set at the boundary L thereof. When folded, the pulling claws 19 can be folded smoothly without interfering with each other.

  Each of the left-side cutting part 12A and the right-side cutting part 12B is formed not only with the movable blade 28 and the fixed blade 27 but also with a pedestal 29, which are configured to be separable.

  The transport device 13 includes a folding-side transport unit 13A corresponding to the folding-side cutting part divided body 2A and another transporting part 13B corresponding to the other cutting-part dividing body 2B. That is, as shown in FIG. 7, the fourth intermediate conveyance unit 44 and the leftmost scraping unit 40 correspond to the folding-side conveyance unit 13A, and other conveyance devices, that is, the left merging conveyance unit 45, each of the three sets of the scraping section 40, the first intermediate transport section 41, the second intermediate transport section 42, the third intermediate transport section 43, and the supply transport section 46 located on the right side corresponds to the other transport section 13B. doing.

  As shown in FIG. 6, the two left-side chopped grains that have been scraped from the leftmost scraping section 40 and transported backward by the fourth intermediate transport section 44 are received by the left joint transport section 45. After that, it is conveyed by the left merging / conveying unit 45 toward the merging point.

  Therefore, the folding-side transport unit 13A (the fourth intermediate transport unit 44 and the leftmost scraping unit 40) transports the harvested cereal meal independently to the position (receiving position) transported by the other transport unit 13B. Is configured to do. The fourth intermediate transport unit 44 corresponds to the folding-side merging transport body, the left merging transport unit 45 corresponds to the other merging transport body, and the fourth intermediate transport unit 44 and the left merging transport unit 45 The merging conveyance unit 120 is configured to convey the harvested cereal grains harvested by the folding-side harvesting unit division body 2A to the junction.

  Each of the lower side horizontal frame 93, the upper side horizontal frame 98, and the cutting blade support frame 95 is configured to be separably connected to each other at a position corresponding to the separation location using a connection configuration such as flange connection. Thus, when the folding-side cut part division body 2A is folded with respect to the other cutting part division body 2B, the respective connection states are released.

  As described above, the support frame F of the cutting unit 2 has the weeding frame 94, the vertical frames 96 and 97, and the pulling device 11 arranged in a substantially triangular shape when viewed from the side of the body, at both ends in the lateral direction of the body. By connecting them, a strong support structure is formed. As a result, even if the support frame F is separated at the above-described separation location, a strong frame structure is formed and supported in each of the folding-side cut-part divided body 2A and the other cut-part divided bodies 2B. It has a configuration having strength.

  The folding-side divided support frame FA corresponding to the folding-side cut-part divided body 2A in the support frame F of the harvesting unit 2 and the other divided support frames FB corresponding to the other cut-part divided bodies are raised. It is configured to be connected to be rotatable about a rotation axis X set parallel to the inclined surface of the cutting device 11 and on the front side of the body relative to the raising device 11.

  As shown in FIGS. 14 to 19, in each of the folding-side divided support frame FA and the other divided support frame FB, in the vertical direction across the upper side frame 98 and the weed frame 94 in the vicinity of the divided portion. The connecting frames 121 and 122 are provided to extend in the direction.

  In addition, as shown in FIGS. 17 and 18, the connecting frame 121 on the other divided support frame FB side extends in the vertical direction, and is divided into the seventh portion from the right end and the divided portion of the upper side frame 98. Each is connected to a grass frame 94. The connecting frame 121 is provided in a rectangular tube shape, and is formed in a substantially L shape in a side view. The upper part of the connecting frame 121 is formed in an upright posture in a rear-up and inclined state that is raised in a side view and substantially parallel to the front surface of the raising case 14 of the device 11.

  As shown in FIGS. 14, 15, and 16, the connecting frame 122 of the folding support frame FA on the folding side extends in the vertical direction, and is directed forward from the divided portion of the upper side frame 98 and the lower side frame 93. Are respectively connected to the front and rear support rods 123 extending in the direction. The front end portion of the front / rear support rod 123 and the upper side frame 98 are connected by a vertical auxiliary connection rod 124. Accordingly, the front / rear support bar 123 corresponds to the front / rear frame, and the support strength of the connection frame 122 is reinforced by the vertical auxiliary connection bar 124.

  Similarly to the connection frame 121 on the other divided support frame side, the connection frame 122 provided on the folding support frame FA on the folding side is also provided in a rectangular tube shape, and is formed in a substantially L shape in a side view. . The upper portion is formed in an upright posture in a rear-upward inclined state that is raised in side view and substantially parallel to the front surface of the raising case 14 of the device 11.

  As shown in FIG. 15, the front / rear support rod 123 is provided in a state slightly above the seventh weed frame 94 from the right end. By configuring in this way, as shown in FIG. 20, when the weeding frame 94 passes through the planted cereal stock, there is little risk that the cultivated cereal will be greatly stepped over by the front-rear support pestle, The cutting device 12 is configured not to cause cutting residue.

  Each of the connecting frames 121 and 122 is a rotation support member that supports the folding support frame FA on the folding side so as to be rotatable around the rotation axis X with respect to the other division support frame FB. Is attached. The pivot support member is provided in a state of protruding to the front side of the machine body from the raising device 11. That is, the rotation axis X is set to be parallel to the inclined surface of the device 11 and on the front side of the machine body from the device 11.

  As shown in FIGS. 17, 18, and 21, the connecting frame 121 on the other divided support frame side is faced upward as a rotation support member in a state of being fixed by two brackets 125 at intervals in the vertical direction. The support pin 126 is provided. As shown in FIGS. 14, 17, and 21, the connecting frame 122 of the folding support frame FA on the folding side is provided with an engagement hole 127 into which the upper and lower support pins 126 are fitted as a rotation support member. An engagement member 128 having an L shape in side view is provided.

  In a state where the engagement pin 127 is engaged with the support pin 126 in the engagement hole 128 of the engagement member 128, the engagement member 128 is received and supported by the bracket 125, so that the folding-side divided support frame body FA of the support pin 126. It is supported so as to be rotatable around the axis X.

  As shown in FIGS. 5 and 7, in the folded state, the front side of the folding part divided body 2 </ b> A on the folding side and the front side of the other cut part divided body 2 </ b> B are folded and overlapped. In this case, the weeding tool 10 of the folding-side cutting part division 2A is removed in order to avoid interference with other weeding tools 10.

  As shown in FIGS. 5 and 7, the weeding frame 94 provided in the folding part divided body 2 </ b> A on the folding side and the weeding frame 94 provided in the other cutting part divided body 2 </ b> B are in a plan view in the folded state. Thus, the position is shifted in the cutting width direction and overlapped in a side view.

Next, the transmission shaft division structure will be described.
The input shaft 105 provided in the lower side horizontal frame 93 and the pulling drive shaft 20 extending in the horizontal direction across the upper portions of the plurality of pulling devices 11 along the upper side horizontal frame 98 are respectively cut off on the folding side. The transmission part of the folding side corresponding to 2 A of partial divisions, the other transmission part corresponding to the other cutting part division body 2B, and the power connection part which can connect / separate them are provided.

  That is, as shown in FIG. 8, the input shaft 105 includes a left-side portion 105A as a transmission portion on the folding side and other portions at a division corresponding position between the folding-side cutting portion division 2A and the other cutting portion division 2C. It is divided into a right part 105B as a transmission part. The left portion 105A and the right portion 105B are configured to be connectable and disengageable via a meshing clutch 105C as a power connecting portion. The meshing clutch 105C has a well-known configuration, and will not be described in detail. It has a configuration that can be fitted and engaged freely.

  As with the input shaft 105, the pulling drive shaft 20 is also divided into a left portion 20A (folding side transmission portion) and a right portion 20B (other transmission portions), and via a meshing clutch 20C as a power connection portion. The left portion 20A and the right portion 20B are configured to be connectable and separable.

  Therefore, when the lower side frame 93 and the upper side frame 98 are separated at the connecting portion in order to switch the cutting unit 2 from the normal use state to the folded state, the input shaft 105 is raised and the drive shaft 20 is left as it is. Can be separated. In order to switch the cutting unit 2 from the folded state to the normal use state, when the input shaft 105 and the drive shaft 20 separated from each other are brought close to each other, the engaged clutches 105C and 20C are automatically connected.

[Another embodiment]
(1) In the above-described embodiment, the pivot shaft around which the cutting unit 2 is folded and rotated is raised and parallel to the inclined surface of the device 11 and is set to the front side of the machine body with respect to the device 11. Instead of this configuration, the rotation axis may be an axis along the vertical direction.

(2) In the above-described embodiment, the weeding frame 94 located at both ends of the cutting width direction, the vertically facing frames 96 and 97, and the pulling device 11 positioned at both ends of the cutting width direction are substantially in a side view of the body. Although it is configured to be arranged in a triangular shape and connected, a configuration without such a connecting structure may be used.

(3) In the above-described embodiment, in the folded state, the weeding tool 10 of the cutting-part dividing part 2A on the folding side is removed in order to avoid interference with other weeding tools 10, but this configuration is used. Instead, it may be configured as follows.
Increasing the amount of misalignment in the cutting width direction in the folded state between the weeding frame 94 provided in the cutting-side cut-part dividing body 2A and the weeding frame 94 provided in the other cutting-part dividing body 2B Thus, it may be possible to switch to the folded state without removing the weeding tool 10 of the folding part split body 2A on the folding side.

(4) In the above embodiment, the three sets of the lower scraping devices 50 located on the right side are arranged so that the packers 48 and 49 are located at the same vertical height. The lower scraping device 50 located in the middle of the three sets of lower scraping devices 50 located on the right side is disposed so as to be positioned at a lower level than the other lower scraping devices 50. Also good.

(5) In the above-described embodiment, in the combination of the eight cuts, the one-side cut part division 2A corresponding to the left two pieces in the cut part 2 and the other-side cut part division 2B corresponding to the remaining six pieces However, the present invention is not limited to such a configuration, and the left-side two pieces and the right-end two pieces are respectively divided into one-side cutting parts and correspond to the four pieces located in the middle. It is good also as a structure foldable to the other side cutting part division body. The one side cut part division body is not limited to two lines, and may be configured to be one or three or more.

(6) In the above-described embodiment, an 8-row harvesting combine has been shown, but 7-row cutting, 9-row cutting, or the like may be used, and the number of cutting lines is not limited to 8.

  The present invention can be applied to a combine having a large number of cutting lines such as 8-cutting.

2 Cutting part 2A One side cutting part division body 2B The other side cutting part division body 11 Lifting device 12 Cutting device 13 Conveying device 93 Lower side side frame 94 Front and rear side frame 98 Upper side side frame 121, 122 Connecting frame 126, 128 Rotating support member X axis

Claims (4)

The front part of the fuselage is equipped with a harvesting part that harvests multiple sown cereal grains,
The cutting unit includes a plurality of raising devices corresponding to the number of cutting lines, a cutting device that cuts the planting cereal stock, and a transport device that transports the cutting cereal toward the rear of the machine body, In the middle of the cutting width direction, it is divided and formed into one side cutting part divided body and the other side cutting part divided body,
The one-side cutting part divided body is in a normal use state in which the one-side cutting part divided body is arranged in a series in the cutting width direction with respect to the other-side cutting part divided body, and the front side of the one-side cutting part divided body and the other-side cutting part divided body Over the folded state that folds in a state where the front faces each other , it is supported rotatably around a vertical pivot axis corresponding to the midway position ,
The pulling device is provided in an upright posture in a tilted state where the lower end side is located on the front side of the aircraft and the upper end side is located on the rear side of the aircraft,
The combine in which the pivot axis is set parallel to the inclined surface of the pulling device and on the front side of the fuselage with respect to the pulling device . The cutting part is provided with a front-rear frame corresponding to each of the plurality of pulling devices, extending in the longitudinal direction of the machine body and coupled to the lower end of each pulling device,
The front-rear frame provided in the one-side cutting part division body and the front-rear frame provided in the other-side cutting part division body are displaced in the cutting width direction in plan view in the folded state. , combine of claim 1 which overlap in side view. In the cutting part,
Corresponding to each of the plurality of pulling devices, a longitudinal frame extending along the longitudinal direction of the body and connected to the lower end of each pulling device;
An upper lateral frame extending along the cutting width direction over the upper ends of each of the plurality of pulling devices and connected to the upper ends of the pulling devices;
A lower side frame that is located at the lower part of the rear side of the fuselage and extends over the entire width of the cutting width direction;
A vertically oriented frame that connects each of both ends of the cutting width direction of the lower side frame and each of both ends of the cutting width direction of the upper side frame; and
The front-rear frame positioned at both ends of the cutting width direction, the vertical frame, and the pulling device positioned at both ends of the cutting width direction are arranged in a substantially triangular shape in a side view of the body,
Frame structure in each of the one-side cutting part division body and the other-side cutting part division body by the front-rear facing frame, the up-down direction frame, the upper side horizontal frame, the lower side horizontal frame, and the pulling device. The combine according to claim 1 or 2 , wherein the body is constituted. The cutting portion includes a connecting frame extending in the vertical direction across the upper side lateral frame and the front / rear direction frame in the vicinity of the division location in each of the one side cutting portion division body and the other side cutting portion division body. Prepared,
Wherein each connecting frame, the one side reaper divided body of the other side reaper divided body the rotation shaft according to claim 3 in which the rotation support member is attached to rotatably support the core around against Combine as described in.

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