JPH11289847A - Supporting structure for reaping part of combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a trouble that, in a combine having laterally slidable reaping part, dust is accumulated in a linking part for supporting the upper part of the reaping part in a swingable state, and culms are caught in the linking part. SOLUTION: A sliding support case is laterally placed on the front end of a vertical linking pipe extending in a front and down direction from the rotating fulcrum of a reaping part thereby the lower part of the reaping part is supported, reinforcing frames 50, 51 are placed in such a state that they extend upward from the vertical linking pipe, the rear part of a swinging frame 56 is pivoted on the reinforcing frames 50, 51, a linking part to the reaping part is placed on the front part of the swinging frame 56, and the linking part is placed on the backside of a pull-up case.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvesting unit which is disposed at the front of a combine, raises a culm, cuts it, and conveys it to a threshing unit. Related to the configuration for

[0002]

2. Description of the Related Art Conventionally, harvesting work by combine has been
A `` rounding operation '' that cuts while turning from the periphery of the field to the center, and a `` cutting operation '' that cuts the middle part of the field in the width direction to increase the cutting efficiency are performed. In the case of middle split work, slide the mowing part to the center of the machine to perform mowing work over the entire width of the machine, and in the case of rotating mowing work, move away from the grain culm on the uncut side and step on the uncut culm. There is a known combine that slides the cutting section to the uncut side so that the cutting straw is not discharged to the uncut side. For example,
This is a technique disclosed in Japanese Patent Application Laid-Open No. 7-308114.

[0003]

The above-mentioned Japanese Patent Application Laid-Open No. 7-308.
The technology of No. 114 is to extend a vertical connecting pipe forward and downward from a horizontal turning fulcrum pipe which is a turning fulcrum of the mowing part, and to provide a gear case at the front lower end of the vertical connecting pipe and to move the slide pipe in the left and right direction And a cutting frame is attached to the slide pipe to slidably support the cutting section. In this state, the reaping unit is tilted forward or backward, so that the horizontal transmission pipe (raising drive case) provided at the upper part of the raising case and the frame extending from the horizontal rotation fulcrum pipe and the vertical connecting pipe are provided. Are connected by a rotating frame and are supported.

[0004] However, since the pivoting frame that rotates when the cutting unit slides and the pivotal support of the horizontal transmission pipe are exposed, the spikes of the grain stem may be caught on the pivotal support during the mowing operation. In some cases, it could become entangled and the slide could not be made smoothly. Also, a dustproof cover is provided above the mowing unit to prevent dust and the like generated during mowing conveyance from scattering to the driver's seat side, but the dustproof cover is moved rearward from the lateral transmission pipe. Due to the extended structure, the strength of the rear side is insufficient, it can not be extended greatly to the rear side, it can be configured only in a small area, and it can generate noise due to vibration. there were.

[0005]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in a combine in which the reaping unit is slidable left and right, a slide support case is provided laterally at a front end of a vertical connection pipe extending forward and downward from a rotation fulcrum of the reaping unit to support a lower portion of the reaping unit, and A reinforcing frame is extended above the connecting pipe, a rear portion of the swinging frame is pivotally supported on the reinforcing frame, a connecting portion with a mowing portion is provided at a front portion of the swinging frame, and the connecting portion is raised. It is arranged on the back side of the case. Further, an upper frame and a cover support frame are fixedly provided on the reinforcing frame, and a dustproof cover is mounted on the upper frame and the cover support frame. Further, an upper frame is provided on the reinforcing frame, and a cover made of an elastic member is arranged between the upper frame and the spike cover.

Further, in a combine in which the mowing portion is slidable left and right, an upper frame and a cover supporting frame are provided above a turning fulcrum of the mowing portion and a vertical connecting pipe extending forward and downward from the turning fulcrum. Is provided, and the right upper side of the raised case is pivotally connected to the upper frame via the swing frame, and the left transmission case on the left side of the raised case is connected to the cover support frame. It is connected through

[0007]

Next, an embodiment of the present invention will be described.
1 is an overall side view of a combine equipped with a mowing device of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side view of a mowing portion, FIG. 4 is a plan view thereof, and FIG. 5 is a top view of a mowing slide. It is a top view.

1 and 2, the entire structure of the combine will be described. Airframe 2 on crawler-type traveling device 1
And an operating unit 3 is disposed on the front right side of the body frame 2 in the traveling direction, and the operating unit 3 has a front column 4
A steering lever, an accelerator lever and the like are arranged on the front column 4, a side column 5 is erected on the side of the front column 4 at the center of the fuselage, and a work clutch lever is mounted on the side column 5. And a gearshift lever and a slide lever.

A reaping portion 6 is provided to be slidable forward from the left side of the body frame 2 in the traveling direction,
The culm is raised to cut the root of the plant by a cutting blade, and is transported backward by a transport device. A threshing unit 7 is arranged at the rear of the reaping unit 6, and while the culm of the cereal culm conveyed by the conveying device is pinched by the feed chain 8 and conveyed backward, threshing by the handling cylinder 9. The straw after threshing is conveyed backward by a straw chain 10 and processed by a straw processing device 11 such as a cutter or a binding device.

At the lower part of the threshing unit 7, a sorting device is disposed, and the second product sorted by the sorting device is returned to the handling cylinder 9 or the processing cylinder again, dust and the like are discharged, and the grain is reduced to one. It is conveyed to a Glen tank 13 arranged at the rear of the operation unit 3 via a numbering conveyor and a fry conveyor 12. A lower conveyor is disposed at a lower portion in the Glen tank 13, and the lower conveyor is communicated with a discharge auger 14. By driving the lower conveyor and the discharge auger 14, the grains in the Glen tank 13 can be discharged. I have to. The engine 1 is located below the seat 15 in the driving section 3.
6 is arranged, the driving force of the engine 16 is transmitted to the crawler-type traveling device 1 to travel, and the reaper 6, the threshing unit 7,
It is transmitted to each section such as a sorting section, and continuously harvested, threshing and sorting work is performed, and the grains are stored in the Glen tank 13.

Next, the configuration of the mowing unit 6 will be described with reference to FIGS. The pivot support 20. 2 is provided on the front of the body frame 2.
1 is provided, and a vertical rotation fulcrum shaft 22 composed of a pipe is pivotally supported above the rotation fulcrum bases 20 and 21. The vertical rotation fulcrum shaft 22 projects left and right from an input gear case 23, and A mowing input shaft (one transmission shaft) 19 is rotatably supported in the moving fulcrum shaft 22, and one end of the mowing input shaft 19 protrudes rightward in the traveling direction, and is fixedly provided with an input pulley 24.

A vertical connecting pipe 25 is projected forward and downward from the input gear case 23, and an elevating hydraulic cylinder 26 is interposed between a middle part of the vertical connecting pipe 25 and the body frame 2, and the vertical connecting pipe 25 is provided. A slide support case 27 is fixedly provided at the front end of the reference numeral 25. The slide support case 27
The slide plate 30 is slidably supported on the slide pipe 30, and support plates 31 are fixedly mounted on both sides of the slide pipe 30 via bevel gear cases 80 and 81, respectively.
The horizontal connection frame 32 is fixedly provided between the front portions of the first and the first.
A hydraulic cylinder 82 is interposed between the slide support case 27 and the bevel gear case 81, and the mowing unit 6 can be slid left and right by expanding and contracting the hydraulic cylinder 82.

The cutting frames 33, 33,... Protrude forward from the horizontal connecting frame 32, and the weeding plates 34, 34 are respectively provided at the front ends of the cutting frames 33, 33,.
... are fixed. At the rear of the weeding plates 34, 34,..., Three raised cases 35, 35, 35 are erected, and the raised cases 35, 35, 35 have tines 36, 36,.・ The chain with
Power is input from the rear surfaces of the upper portions of the raising cases 35, 35, 35, respectively, and each input shaft is driven by the raising case 35.
. 35, the raising drive case 37 provided horizontally above the 35.
It is linked to the transmission shaft inside.

A support frame 28 erected above the right mowing frame 33 is connected to and supported by the lower right portion of the raising drive case 37, and a pipe-shaped lower left portion of the raising drive case 37 is formed. Left transmission case 29 is connected, and the lower part of the left transmission case 29 is a slide pipe 3
The left side of the transmission case 29 is connected to the left side of the transmission case 29 so as to be raised via a transmission shaft supported in the left transmission case 29 to transmit power to the case 35.

The cutting frames 33, 33,...
A cutting blade 39 is provided laterally on the lower side between the rear portions, and the cutting wheels 33, 33,. 41 ・
41, and a stock-source transport device 42L / 4 further upward and rearward.
2R is disposed above the lower transfer device 43L / 4.
3R, the upper conveyors 44 are arranged, and the grain stalks that have been cut by the cutting blade 39 are transferred to the stock conveyor 42.
L / 42R, lower transporting devices 43L / 43R, and upper transporting devices 44/44 convey rearward and merge into one. Further, a vertical transport device 45 and an ear transport device 46 are disposed on the body side at the rear portion, and the root side of the transported grain culm is inherited by the vertical transport device 45, and the ear side is inherited by the ear transport device 46, and the grain culm is transferred. Is further inherited by the feed chain 8 and conveyed to the threshing unit 7.

The vertical transport device 45 has a rear portion rotatably supported up and down, and is driven up and down by driving a motor (not shown). The vertical transport device 45 rotates up and down in accordance with the length of the grain stem. Is controlled as follows. Further, the front portion of the vertical transport device 45 is connected to a frame extending from the mowing frame side via a link or the like so that the vertical transport device 45 is rotated following the left and right slide so that a mistake in inheritance does not occur.

When the cereal culm is conveyed from the vertical conveying device 45 and the spike conveying device 46 to the threshing inlet, as shown in FIG. 1 and FIG. 90, and the ear cover 9
10, a front cover 90a to be attached to the vertical conveying device 45, a rear cover 90b to be attached to the entrance iron plate of the threshing unit 7, and the front cover 90a and the rear cover 90b as shown in FIG.
And a connecting cover 90c that can be deformed so that no gap is formed even when sliding, and auxiliary covers 90d and 90e for filling other front gaps.

The front cover 90a conforms to the shape of the upper part of the vertical conveying device 45, and the rear cover 90b conforms to the shape of the front part of the entrance iron plate. Composed and connected cover 9
Oc and the auxiliary covers 90d and 90e are each formed by cutting an elastic body such as rubber or synthetic resin in accordance with the shape of the mounting portion and the shape to be covered. In this way, the root of the grain culm is held by the vertical conveying device 45, and when the spike side is conveyed while being nipped by the spike conveying device 46, the lower side thereof is received by the spike cover 90, and the culm does not spill.

Next, the structure for supporting the upper part of the mowing part 6 of the present invention will be described with reference to FIG. 3 and FIGS. 6 is a front view of the upper support, FIG. 7 is an enlarged side view of the same, FIG.
Is a plan view, and FIG. 9 is a front view. Reinforcement frames 50 and 51 extend upward and to the right from the vertical connection pipe 25 and the input gear case 23, respectively, and upper ends of the reinforcement frames 50 and 51 are fixed to a support plate 47. An upper frame 52 is provided horizontally on the lower surface of the upper plate above the support plate 47 in the front-rear horizontal direction. The upper frame 52 includes a front-rear frame 52a and left and right frames extending leftward from the front end thereof. 52b, and has a substantially L-shape in plan view.
The front and rear frames 52a are arranged on the side portions of the side columns 5, and the left and right frames 52b are arranged in parallel on the rear portion of the drive case 37.

Further, an L-shaped dustproof cover support frame 53 is fixedly provided between the left ends of the left and right frames 52b of the upper frame 52 and above the rear portion of the front and rear frames 52a. The upper frame 52 and the upper frame 52 are formed in a frame shape to increase rigidity. Furthermore,
A triangular cover mounting plate 48 is erected on the upper portion of the support plate 47, and a stay 49 projecting from the front of the cover mounting plate 48 and the upper frame 52 and a dustproof cover 54 are fixed on the upper portion of the cover support frame 53. doing. As described above, the number of members and fixing portions for supporting the dust cover 54 are increased as compared with the conventional case, the rigidity can be increased by firmly fixing the dust cover 54, and the dust cover 54 can have a larger area than the conventional case. It was able to cover a wide area, reducing the scattering of dust during mowing.

As shown in FIG. 3, the cover 6 extends downward from the side surface of the upper frame 52 or the support plate 47.
5, the other side is fixed to the ear cover 90, and the cover 65 is made of an elastic material such as rubber, so that even if the reaper 6 slides, the cover 65 is deformed to follow the slide. The gap between the frame 52 and the spike cover 90 is not formed so as to prevent dust and the like generated from the cutting unit 6 from entering the side column side where the driver's seat is located.

At the upper ends of the reinforcing frames 50 and 51, mounting plates 60 and 60 are fixed in parallel with the supporting plate 47, and a fulcrum shaft 55 is rotatably supported at the front of the mounting plates 60 and 60. The rear end of the swing frame 56 is fixed to the support shaft 55, and the swing frame 56 is swingably supported by the upper frame 52. The swing frame 56 includes an arm portion 56a, and plate portions 56b and 56b fixed to both side surfaces of a front end of the arm portion 56a.
The plate portion 56b is composed of a pivot portion 56c which is provided at the front of the plate portion 56b and extends rightward.

The arm portion 56a is connected to the front and rear frames 5
2a, the upper part is covered together with the support shaft 55 and the like.
The side of a is covered with the support plate 47 so that dust and the like do not accumulate, and the conveyance of the grain stalk is not obstructed. The plate portion 56b is configured to be substantially L-shaped when viewed from the side so that it can be extended downward while avoiding the drive case 37, and the pivot portion 56c can be extended downward and parallel to the drive case 37. The entire swing frame 56 is arranged in an L shape in plan view.

A pivot shaft 57 is suspended from the tip of a pivot portion 56c disposed at the front end of the swing frame 56, and a lower portion of the pivot shaft 57 is pivotally supported by a connecting plate 61. Is bent in a crank shape as viewed from the front (FIG. 9), one end is projected forward and downward, and is fixed to the back side of the raising case 35, and the other end is extended rightward upward and projects from the support bracket 58. It is fixed to the stay 58a provided. In this manner, the pivotal support 5 at the front end of the swing frame 56 is provided.
6c and its connecting portion are arranged below the raising drive case 37 and on the back side of the raising case 35, and even if the swing frame 56 is swung at the time of sliding, the connecting portion such as the pivot shaft 57 is It is hardly exposed, dust and straw chips are not deposited, and a smooth swing can be obtained.

The support bracket 58 is disposed in the left-right direction, is fixed to the upper rear side of the drive case 37, and is provided with a stay 58b protruding from the left rear surface. The sliding body 59 is fixed. The sliding body 59 is a case body 5 formed in a U-shape in side view.
The upper and lower two rollers 59b and 59b are rotatably supported by the upper and lower frames 8a, and the left and right frames 52b are inserted between the rollers 59b and 59b. It is configured to be slidably supported.

With this configuration, the cutting section 6 falls down only by being supported below the vertical connecting pipe 25, so that the upper position of the cutting section 6 is set to the vertical connecting pipe 2 position.
By connecting and supporting through the reinforcing frames 50 and 51, the upper frame 52, the swing frame 56, and the like that protrude upward from the upper part 5, it is possible to prevent the front part from falling down, and even when the reaper 6 is slid left and right. The swinging frame 56 is rotated following the rotation of the swinging frame 56. The swinging frame 56 is disposed on the upper right side of the cutting unit 6 away from the grain stalk transport path. It does not get caught on the frame 56 or the members supporting it. When the cutting unit 6 is slid to the left, the center of gravity moves to the left, but the sliding body 59 supports the left to prevent the left of the cutting unit 6 from tilting.

Further, in order to strengthen the support on the left side, as shown in FIG. 11 and FIG.
1 is pivotally supported by a pivot shaft 92, and a connecting link 94 is pivotally supported by a pivot 93 on the other side of the rotating stay 91, and the other end of the connecting link 94 is fixed to a middle portion of the left transmission case 29. The mounting stay 96 is pivotally supported via a pivot 95.

With this configuration, when the cutting unit 6 is slid left and right, the connecting link 94 is also rotated together with the rotation of the swing frame 56, and the lower portion of the cutting unit 6 is moved by sliding of the slide pipe 30. In contrast to the right and left linear direction, the tip of the swing frame 56 and the connecting link 94 is formed in an arc shape, and movement in the front-back direction is added. It can be absorbed by the front-rear rotation of the cutting unit 6 around the center, and the back-and-forth movement of the connecting link 94 is absorbed by the back-and-forth movement of the rotating stay 91, thereby preventing the torsion from occurring and imposing an excessive load. In this way, even when the reaper 6 is slid to the left, the left side of the reaper 6 is suspended and supported by the connection of the connecting link 94, so that the reaper is stably supported without being inclined. Make sure you can work.

[0029]

As described above, the present invention has the following advantages. That is, as in claim 1,
In a combine that allows the reaping unit to slide left and right,
A slide support case is provided laterally at the front end of the vertical connecting pipe extending forward and downward from the fulcrum of the mowing portion to support a lower portion of the mowing portion, and a reinforcing frame is extended above the vertical connecting pipe, Since the rear part of the swing frame is pivotally supported on the reinforcing frame, and a connection part with the mowing part is provided at the front part of the swing frame, the connection part is raised and arranged on the back side of the case.
By effectively using the space on the back side of the raising case, the connecting portion is hidden by the raising case and the raising drive case, the connecting portion is hardly exposed, and dust and straw chips are not deposited. , And a smooth swing can be obtained. In addition, since it does not interfere with the transport route of the grain stalk, the transport of the grain stalk is not disturbed.

Also, the upper frame and the cover supporting frame are fixed on the reinforcing frame and the dustproof cover is mounted on the upper frame and the cover supporting frame. The four corners are supported instead of the holding support, and the support strength is increased, the dust cover can be made large, it can cover the upper part of the mowing part more, and the scattering of dust can be suppressed more than before. It was possible and the vibration was suppressed.

Further, since the upper frame is provided on the reinforcing frame and the cover made of an elastic member is disposed between the upper frame and the spike cover, the cutting section can be slid left and right. There is no gap between the spike cover and the upper frame, and the dust generated during mowing or transport does not blow up from the lower side of the mowing part, and the dust scatters to the driver's seat side. Can be prevented.

According to a fourth aspect of the present invention, in the combine where the mowing portion is slidable to the left and right, the turning fulcrum portion of the mowing portion and the vertical connecting pipe extending forward and downward from the turning fulcrum are provided above the combiner. A quadrangular frame-shaped frame consisting of an upper frame and a cover support frame is provided, and the right upper side of the raised case is pivotally connected to the upper frame via the swing frame, and the left transmission case on the left side of the raised case is raised. Since the cover support frame is pivotally connected via the connection link, the weight on the left side can be suspended and supported via the connection link when the cutting part is slid to the left, and it is stable even when the cutting part is slid. The mowing work can now be performed in a state where it has been cut.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine equipped with a mowing device of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of the reaper.

FIG. 4 is a plan view of the same.

FIG. 5 is a plan view of an upper guide portion of the mowing slide.

FIG. 6 is a front view of the upper support.

FIG. 7 is an enlarged side view of the same.

FIG. 8 is a plan view of the same.

FIG. 9 is a front view of the same.

FIG. 10 is a perspective view of an ear cover.

FIG. 11 is a side view showing another embodiment of the upper support.

FIG. 12 is a plan view of the same.

[Explanation of symbols]

 6 Cutting part 25 Vertical connection pipe 27 Slide support case 35 Raised case 50/51 Reinforcement frame 52 Upper frame 53 Cover support frame 54 Dustproof cover 56 Swing frame 65 Cover 90 Ear cover 94 Connection link

Claims (4)

[Claims] 1. A combine support in which a cutting unit is slidable left and right. A slide support case is provided laterally at a front end of a vertical connecting pipe extending forward and downward from a pivot of the cutting unit to support a lower part of the cutting unit. Extending a reinforcing frame above the vertical connecting pipe, pivotally supporting a rear portion of the swinging frame on the reinforcing frame, and providing a connecting portion with a mowing portion at a front portion of the swinging frame; The harvester support structure of the combine, characterized in that it is arranged on the back side of the case. 2. The harvesting section support of a combine according to claim 1, wherein an upper frame and a cover support frame are fixed on the reinforcing frame, and a dustproof cover is mounted on the upper frame and the cover support frame. Construction. 3. A combine harvester support structure according to claim 1, wherein an upper frame is provided on the reinforcing frame, and a cover made of an elastic member is disposed between the upper frame and the spike cover. . 4. An upper frame and a cover support frame above a turning fulcrum of a cutting unit and a vertical connecting pipe extending forward and downward from the turning fulcrum in a combine in which the cutting unit is slidable left and right. Is provided, and the right upper side of the raised case is pivotally connected to the upper frame via the swing frame, and the left transmission case on the left side of the raised case is connected to the cover support frame. A harvester support structure for a combine, characterized in that the harvester is connected to the harvester.