JPH0644848B2 - Combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vertical movement device for a cutting unit in a combine.

(Prior Art) Conventionally, a traveling device is provided below a traveling frame, an automatic feeding type threshing device is mounted on an upper portion of the traveling frame, a mowing portion is provided in front of the traveling frame, and the mowing portion includes a rear parallel link and an upper side. A parallel link including a parallel link, a lower parallel link, and a front parallel link, and a structure configured to move up and down by a cylinder for operating the parallel link are known.

(Problems to be Solved by the Invention) However, the conventionally known one has a defect that when the cutting unit is moved upward for turning or inspection, the tip of the cutting unit collides with an object and is damaged. This is because when the reaper moves upwards, it rises so as to project obliquely forward. Further, in the conventional one, when the reaper moves up and down, the transfer of the grain culm is not successful.

(Means for Solving the Problem) Therefore, according to the present invention, the traveling device 2 is provided in the lower part of the traveling frame 1, the automatic feeding type threshing device 5 is provided in the upper part, and the cutting section 28 is provided in the front side. Is provided with an endless grain culm supply device 6 for sandwiching and conveying the root of the grain culm from the front side to the rear side, and the grain culm transport device 3 is provided between the mowing section 28 and the endless grain culm supply device 6.
2 is provided, the grain culm transporting device 32 is attached to the mowing section 28 side, and a certain width is formed so as to move obliquely rearward from the lowermost end position together with the mowing section 28.
The rear side 35 forms a superimposing section 36 that overlaps with the take-over section 37 of the endless grain culm feeder 6, and the superposition section 36 is more than the takeover section 37 even if the mowing section 28 and the grain culm conveying apparatus 32 descend to the maximum. The combine formed so as not to come off, and the traveling device 2 provided at the lower part of the traveling frame 1, the automatic feeding type threshing device 5 provided at the upper part of the traveling frame 1, and the front side of the automatic feeding type threshing device 5 Is provided with an endless grain culm feeding device 6 that grips and conveys the root of the grain culm to the rear side, and at the front side position of the traveling frame 1 and at the lower position on the front side of the endless grain culm feeding device 6, the middle of the horizontal direction. A shaft 12 is provided, the upper end of a rear parallel link 14 is attached to the intermediate shaft 12, and the upper parallel link 1 is attached to the intermediate shaft 12.
5, the front-rear intermediate position of 5 is pivotally mounted, the rear end of the lower parallel link 16 is pivoted 17 at the lower end of the rear parallel link 14, and the rotary shaft 19 is provided at the front end of the upper parallel link 15 so that it is parallel to the front side. The upper end of the link 18 is axially attached, and the front end of the lower parallel link 16 is axially attached 16a to an intermediate position in the vertical direction of the front parallel link 18,
A stopper 24 is provided at the rear end of the upper parallel link 15 for abutting the tip of the piston 22 of the cylinder 21 on the rear parallel link 14 when the tip of the piston 22 of the cylinder 21 is pivoted 23 and rotated a certain amount or more. 28 is fixed, the front side takeover part 37 of the endless grain culm feeder 6 is formed along the rotation locus of the rotary shaft 19, and the rear side 35 of the grain culm conveying device 32 of the cut grain culm is the rotary shaft 19. The overlapped portion 36 is formed so as to be wound on the
Is a combine that is formed so as to separate from the take-over portion 37 even when the reaping portion 28 descends to the maximum.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings, in which 1 is a combine traveling frame, and a traveling device 2 is provided below the traveling frame 1. 3 is a drive wheel and 4 is an idle wheel. An automatic feeding type threshing device 5 is provided on the upper part of the traveling frame 1. 6 is an endless grain culm feeder of the automatic feeding type threshing device 5. The take-over portion 37 of the endless grain culm feeder 6 is formed so as to substantially follow the rotation locus of a rotary shaft 19 which will be described later.

A front frame rod 7 and a rear frame rod 8 in the left-right direction are provided at a front side position of the traveling frame 1 with a desired front-and-rear spacing, and a suspension shaped like a front view on the frame rod 7 and the rear frame rod 8. A stand 9 is provided. Reference numeral 10 is a horizontal portion of the suspension base 9, and 11 is vertical portions on both left and right sides of the suspension base 9, and the lower end portions of the vertical portion 11 are welded to the front frame rod 7 and the rear frame rod 8.

A horizontal intermediate shaft 12 is provided on the upper surface of the horizontal portion 10 of the suspension base 9. Reference numeral 13 denotes a case of the intermediate shaft 12, which is attached to the upper surface of the horizontal portion 10.

An upper end of a rear parallel link 14 is axially mounted on the intermediate shaft 12 in a loosely fitted state. Further, the front and rear intermediate portions of the upper parallel link 15 are axially mounted on the intermediate shaft 12 in a loosely fitted state. In FIG. 2, the shaft is mounted via the mounting plate 15a. The rear end of the lower parallel link 16 is pivotally attached 17 to the lower end of the rear parallel link 14. A rotary shaft 19 is provided at the front end of the upper parallel link 15, and the upper end of the front parallel link 18 is pivotally attached to the rotary shaft 19. The front end of the lower parallel link 16 is pivotally mounted 16a at an upper and lower intermediate position of the front parallel link 18.

The rear parallel link 14, the upper parallel link 15, the lower parallel link 16, and the front parallel link 18 form a substantially rectangular parallel link 20 (parallel lift).

The rear end of the upper parallel link 15 extends rearward of the intermediate shaft 12. Although the embodiment of FIG. 2 is formed in a straight line, it may be bent. The front end of the piston 22 of the cylinder 21 is attached to the rear end of the upper parallel link 15 by a shaft attachment 2
Do 3.

A stopper 24, which comes into contact with the rear surface 26 of the rear parallel link 14 when the piston 22 extends a certain amount or more, is provided near the shaft mount 23. The stopper 24 is preferably the upper parallel link 1
5 is provided at the rear end.

25 is a stopper for fixing the reaper 28 at a position where the rear surface 26 of the rear parallel link 14 abuts against the rear surface 26 and is maximally lowered.
7 is the adjusting screw.

A mowing unit 28 is fixedly provided at the lower end of the front parallel link 18.

29 is a grass body, 30 is a raising device, 31 is a cutting blade, and 32 is a grain culm conveying device.

When viewed from above, the grain culm transporting device 32 has a front side 33 that faces the rear side of the scraping device 34, and a rear side 35 that faces the rotating shaft 1.
The endless grain culm feeding device 6 is rotated by being hung around 9
To form a superposed portion 36 that superposes with the succeeding portion 37 of
6 is formed so as to overlap with the take-over portion 37 even when the cutting portion 28 is lowered to the maximum.

(Operation) Next, the operation will be described.

When the drive wheels 3 are rotated and the traveling device 2 is rotated, the machine body moves forward, weeds the grain culms that are entwined in the left and right direction by the grass body 29, and raises the hanging tips with the raising device 30, In that state, the root is cut by the cutting blade 31, and the grain culm scraped by the grain culm transporting device 34 is transferred to the grain culm transporting device 32.
Is carried to the succeeding portion 37 on the rear side 35 to the succeeding portion 37 on the front side of the endless grain culm feeding device 6, and the automatic feeding type threshing device 5 threshes.

Then, when air or oil is sent to the cylinder 21 to extend the piston 22, the upper parallel link 15 is centered on the intermediate shaft 12, and the shaft attachment part of the rotary shaft 19 protruding forward from the upper parallel link 15 is directed in the direction of C. Since it rotates in a circular arc, first, the front parallel link 18 moves upward as the shaft mounting portion of the rotary shaft 19 rotates, and the front parallel link 18 is mounted on the front parallel link 18.
Shaft attachment 16a of lower parallel link 16 pivotally attached at 6a
The part also moves up keeping the relationship of the parallelogram frame. However, during this period, the upper end of the rear parallel link 14 is only attached to the intermediate shaft 12, and there is no action to push the rear parallel link 14 itself forward. Therefore, as shown by the solid line in FIG. The rear surface 26 of the parallel link 14 rests against the adjusting screw 27 and does not move at all. Therefore, the grass body 29, the raising device 30, the cutting blade 3
1. The mowing unit 28 including the grain and culm transporting device 32 and the like moves upward in the a direction from the mowing position A to the ascending midway position B while keeping parallel to the ground, and adjusts the mowing height. Then, when the piston 22 further extends from the state shown by the solid line in FIG. 2, the stopper 24 provided in the vicinity of the shaft attachment portion 23 at the rear end portion of the upper side parallel link 15 becomes the rear surface 26 of the rear side parallel link 14.
The rear parallel link 14 is moved like a tentative line by the stopper 24, and the intermediate shaft 12 is pivotally moved up, so that the cutting portion 28, in particular, its tip portion gradually moves forward. However, the maximum ascending position C is reached as shown by the arrow B. And in the meantime, the tip of the reaper 28 is
Since it does not come out before the vertical line XX, the reaper 28
Tip does not collide with foreign matter.

Then, as a second movement, the rear side 35 of the grain culm transporting device 32 is hung around the rotary shaft 19 and the rotary shaft 1
Although it is driven by 9, when the rotation shaft 19 is rotated by the cylinder 21 as shown by the arrow C as described above, the overlapping portion 36 of the grain culm conveying device 32 is rotated.
May come off from the takeover part 37 of the endless grain culm feeder 6, but the overlapping part 36 is formed so that the superposition does not come off from the takeover part 37 even when the cutting part 28 is lowered to the maximum. Since the harvesting work is not hindered and the shape of the take-over portion 37 is formed along the rotation locus of the rotary shaft 19, the harvesting work can be smoothly performed during that time.

(Effect) As described above, the traveling device is provided below the conventional traveling frame, the automatic feeding type threshing device is mounted on the upper portion of the traveling frame, the mowing unit is provided in front of the traveling frame, and the mowing unit is at the rear side. It is well known that a parallel link composed of a parallel link, an upper parallel link, a lower parallel link and a front parallel link and a structure configured to move up and down by a cylinder for operating the parallel link. However, the conventionally known device has a defect that when the cutting unit is moved upward for turning or inspection, the tip of the cutting unit collides with an object and is damaged. This is because when the reaper moves upwards, it rises so as to project obliquely forward.
Further, in the conventional one, when the reaper moves up and down, the transfer of the grain culm is not successful.

However, according to the present invention, the traveling device 2 is provided below the traveling frame 1.
The upper end of the automatic feeding threshing device 5 is provided with a mowing part 28 on the front side, and the automatic feeding type threshing device 5 holds the root of the grain culm from the front side to the rear side and conveys the endless grain culm feeder 6 The grain culm conveying device 3 is provided between the mowing unit 28 and the endless grain culm feeding device 6.
2 is provided, and the grain culm transporting device 32 is connected to the reaping unit 28 side, and is formed so as to move diagonally upward from the lowermost end position together with the reaping unit 28, and the grain culm transporting device 32 is provided.
The rear side 35 forms a superimposing section 36 that overlaps with the take-over section 37 of the endless grain culm feeder 6, and the superposition section 36 is more than the takeover section 37 even if the mowing section 28 and the grain culm conveying apparatus 32 descend to the maximum. The combine formed so as not to come off, and the traveling device 2 provided at the lower part of the traveling frame 1, the automatic feeding type threshing device 5 provided at the upper part of the traveling frame 1, and the front side of the automatic feeding type threshing device 5 Is provided with an endless grain culm feeding device 6 that holds and conveys the root of the grain culm to the rear side, and at the front side position of the traveling frame 1 and at the front lower position of the endless grain culm feeding device 6, a horizontal center A shaft 12 is provided, the upper end of a rear parallel link 14 is attached to the intermediate shaft 12, and the upper parallel link 1 is attached to the intermediate shaft 12.
5, the front-rear intermediate position of 5 is pivotally mounted, the rear end of the lower parallel link 16 is pivoted 17 at the lower end of the rear parallel link 14, and the rotary shaft 19 is provided at the front end of the upper parallel link 15 so that it is parallel to the front side. The upper end of the link 18 is axially attached, and the front end of the lower parallel link 16 is axially attached 16a to an intermediate position in the vertical direction of the front parallel link 18,
A stopper 24 is provided at the rear end of the upper parallel link 15 for abutting the tip of the piston 22 of the cylinder 21 on the rear parallel link 14 when the tip of the piston 22 of the cylinder 21 is pivoted 23 and rotated a certain amount or more. 28 is fixed, the front side take-over portion 37 of the endless grain culm feeder 6 is formed in accordance with the rotation trajectory of the rotary shaft 19, and the rear side 35 of the grain culm transport device 32 of the cut grain culm is attached to the rotary shaft 19. The overlapping portion 36 is formed which is wound and overlaps with the take-over portion 37.
Is a combine that is formed so as not to come off from the take-over portion 37 even when the cutting portion 28 is lowered to the maximum, so first, when moving the cutting portion 28 from the lowermost portion A to the intermediate position B, , The rear parallel link 14 has only its upper end pivotally attached to the intermediate shaft 12,
Since there is no action of pushing itself forward, the rear parallel link 14 does not move at all as shown by the solid line in FIG. for that reason,
The mowing unit 28 and the grain culm transporting device 32 move in the a direction from the mowing position A to the midway-up position B while keeping parallel to the ground, and adjust the mowing height. Therefore, even if the tip of the mowing unit 28 does not come out before the vertical line XX even during the further rise to reach the maximum rising position C, the tip of the mowing unit 28 may collide with a foreign matter. Absent.

As a second movement, the overlapping portion 36 of the grain culm transporting device 32 may be disengaged from the takeover portion 37 of the endless grain culm feeding device 6, but the overlapping portion 36 does not allow the cutting portion 28 to descend to the maximum. Since the overlapping portion 37 is formed so as not to come off, there is no hindrance to the cutting work. Therefore, the reaping work can be performed smoothly during that time.

[Brief description of drawings]

FIG. 1 is a side view of the main part, FIG. 2 is a side view for explaining the operation, FIG. 3 is a plan view of the main part, and FIG. 4 is a front view of the main part. Explanation of reference numerals 1 ... traveling frame, 2 ... traveling device, 3 ... driving wheel,
4 ... idler wheel, 5 ... automatic feeding type threshing device, 6 ... endless grain culm feeder, 7 ... front frame rod, 8 ... rear frame rod, 9 ... suspension stand, 10 ... horizontal Part, 11 ... vertical part, 12 ... intermediate shaft, 13 ... case, 14 ... rear parallel link, 15 ... upper parallel link, 15a ... mounting plate, 16 ... lower parallel link, 16a ... … Axial, 17 ...
… Axial mounting, 18 …… Front side parallel link, 19 …… Axial mounting, 20
...... Parallel link, 21 ...... Air cylinder, 22 ...... Piston, 23 ...... Axial mounting, 24 ...... Stopper, 25 ......
Stopper, 26 ... Rear surface, 27 ... Adjusting screw, 28 ...
… Mowing part, 29 …… Grass, 30 …… Raising device, 31…
... Cutting blade, 32 ... Grain culm transporting device, 33 ... Front side, 34 ...
… Scraping device, 35 …… Rear side, 36 …… Overlapping section, 37 ……
Takeover department.

Claims (2)

[Claims] 1. A traveling device 2 is provided at a lower part of a traveling frame 1 and an automatic feeding type threshing device 5 is provided at a front side thereof with a mowing section 28, and the automatic feeding type threshing device 5 is provided with a grain culm from a front side to a rear side. An endless grain culm feeding device 6 for nipping and transporting the root part is provided, and the cutting section 2
8 and the endless grain culm feeder 6 are provided with a grain culm transporting device 32. The grain culm transporting device 32 is attached to the mowing section 28 side, and a certain width is raised diagonally backward from the lowermost end position together with the mowing section 28. The rear side 35 of the grain culm transporting device 32 is formed so as to move, and the overlapping portion 36 that overlaps with the takeover portion 37 of the endless grain culm feeding device 6 is formed. A combine that is formed so as not to come off from the takeover portion 37 even when 32 is lowered to the maximum. 2. A traveling device 2 is provided below the traveling frame 1, an automatic feeding threshing device 5 is provided above the traveling frame 1, and the automatic feeding threshing device 5 is provided with grains from the front side to the rear side. An endless grain culm feeder 6 is provided to clamp and convey the root of the culm,
An intermediate shaft 12 in the left-right direction is provided at a lower position on the front side of the endless grain culm feeder 6 at a front position of the traveling frame 1, and an upper end of a rear parallel link 14 is axially attached to the intermediate shaft 12. 12, the front and rear intermediate positions of the upper parallel link 15 are pivotally attached,
A rear end of the lower parallel link 16 is pivotally attached 17 to a lower end of the rear parallel link 14, and a rotary shaft 1 is attached to a front end of the upper parallel link 15.
9 is provided and the upper end of the front parallel link 18 is axially attached to this.
The front end of the lower parallel link 16 is axially mounted 16a at a vertical intermediate position of the front parallel link 18, and the tip end of the piston 22 of the cylinder 21 is axially mounted 23 at the rear end of the upper parallel link 15 and is rotated a certain amount or more. A stopper 24 that comes into contact with the side parallel link 14 is provided, a cutting section 28 is fixed to the lower end of the front side parallel link 18, and a front side takeover section 37 of the endless grain culm feeder 6 follows the rotation locus of the rotary shaft 19. The rear side 35 of the grain culm transporting device 32 of the cut grain culm is formed by the rotary shaft 1
Polymerization part 3 which is wound around 9 and overlaps with the transfer part 37
6 is formed, and the overlapping portion 36 is formed so as not to come off from the take-over portion 37 even when the cutting portion 28 descends to the maximum.