JPS61181313A - Combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for vertically moving a reaping section in a combine harvester.

(Prior art) Conventionally, a traveling device is provided below the traveling frame, an automatic feeding type threshing device is mounted on the upper part of the traveling frame, and a reaping section is provided in front of the traveling frame, and the reaping section is connected to the rear parallel link and the upper side. A parallel link consisting of a parallel link, a lower parallel link, and a front parallel link, and a parallel link configured to move up and down by an actuated cylinder are known.

(Problems to be Solved by the Invention) However, conventionally known devices have a defect in that when the reaping section is moved upward for turning, inspection, etc., the tip of the reaping section collides with an object and is damaged. This is because when the reaping section moves upward, it rises so as to protrude due to the oblique forward force.

(Means for Solving the Problem) Accordingly, the present invention provides the traveling device 2 at the lower part of the traveling frame l, the automatic feed type thresher N5 at the upper part, and the reaping section 28 at the front part, and the reaping section 28 is provided with a parallel link. The parallel link mechanism is configured such that above a certain height, the parallel link mechanism is automatically locked by a locking member, so that beyond that height, the parallel link mechanism does not move up and down in parallel, but rotates up and down. hand,
A combine harvester that is designed to rapidly or rapidly descend above a certain height, a traveling gear N2 at the bottom of the traveling frame 1, and an automatic feed type threshing device 5 at the top thereof, and the front side of the traveling frame 1 (7) is An intermediate shaft 12 in the left-right direction is provided, and the upper end of the rear parallel link 14 and the upper parallel link 15 are pivotally attached to the intermediate shaft 12 at the front-rear intermediate position, and the lower end of the rear parallel link 14 is attached to the lower parallel link. A rotation shaft 19 is provided at the front end of the upper parallel link 15 to which the upper end of the front parallel link 18 is pivotally attached, and the front end of the lower parallel link 16 is attached to the front parallel link 17. A piston 22 of a cylinder 21 is pivotally attached 20 to the rear end of the upper parallel link 15, and a tip of a piston 22 of a cylinder 21 is pivotally attached 23 to the rear end of the upper parallel link 15. A lock piece 24 is provided to abut and lock the parallel link 14, and a reaping part 28 is fixed to the lower end of the front parallel link 18 to form a combine harvester.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a traveling frame of a combine harvester, and a traveling device 2 is provided at the lower part of the traveling frame 1. 3 is a driving wheel, and 4 is an idler wheel. An automatic feeding type threshing device 5 is provided on the upper part of the traveling frame 1. 6 is an endless culm feeding device of the automatic feeding type threshing device 5.

Front frame rods 7 and rear frame rods 8 in the left and right direction are provided at the front position of the traveling frame l with a desired longitudinal spacing, and the tops of the front frame rods 7 and rear frame rods 8 are provided with a mouth-shaped shape when viewed from the front. A suspension stand 9 is provided. lO is the horizontal part of the suspension stand 9, 11 is the vertical part on both left and right sides of the suspension stand 9, and the vertical part lO is the horizontal part of the suspension stand 9;
Weld the lower end of (2) to the front frame rod 7 and rear frame rod 8.

An intermediate shaft 12 in the left-right direction is provided on the upper surface of the horizontal portion 10 of the suspension base 9. 13 is a case of the intermediate shaft 12, which is attached to the upper surface of the horizontal portion 10.

The upper end of the rear parallel link 14 is loosely fitted to the intermediate shaft 12. Further, an upper parallel link 15 is loosely fitted to the intermediate shaft 12 at a front and rear intermediate position. The rear end of the lower parallel link 16 is pivoted 17 to the lower end of the rear parallel link 14 . A rotating 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 this shaft. The front parallel link 18 is formed of a hollow pipe, and a power transmission shaft is provided inside. The front end of the lower parallel link 16 is pivoted 20 at a vertically intermediate position of the front parallel link 18.

The rear parallel link 14, the upper parallel link 15. Said lower parallel link 16. The front parallel link 18 forms a substantially rectangular parallel link (parallel lift) when viewed from the side.

The rear end of the upper parallel link 15 extends rearward from the intermediate shaft 12 in a straight or bent shape to form an extension rod 23. The tip of the piston 22 of the cylinder 21 is pivotally attached to the rear end of the extension rod 23.

When the extension rod 23 is extended, the extension rod 23 is pushed.
The upper parallel link 15 rotates clockwise in the figure around the intermediate shaft 12, rotates the shaft attachment 19 in the A direction, pulls up the front parallel link 18 and the rear parallel link 14, and simultaneously lifts the shaft of the lower parallel link 16. The lower parallel link 16 is provided with a locking piece 24 that comes into contact with the front surface 25 of the rear parallel link 14 when the lower parallel link 16 rotates by a certain angle or more when the 1120 portion is moved upward.

Reference numeral 26 denotes a stopper that the rear surface 27 of the rear parallel link 14 comes into contact with and fixes the reaping section 28 at the maximum lowered position.

A reaping portion 28 is fixedly provided at the lower end of the front parallel link 18.

Reference numeral 29 denotes a weed splitting body, 30 a pulling device, 31 a cutting blade, 32 a culm conveying device, and 33 a raking device (function) Next, the function will be described.

When the driving wheel 3 is rotated and the traveling gear M2 is rotated, the machine moves forward, and the culm that is intertwined in the left and right direction is separated by the splitting body 29, and the hanging tip is pulled up by the pulling device 30. In this state, the root is cut by the cutting blade 31, and the culm scraped by the raking device 33 is transported by the culm conveying device W32, transferred to the transfer section on the front side of the endless culm supply device 6, and then removed. Threshing is carried out by a dynamic feed type threshing device 5.

The relationship between the reaping section 28 and the cylinder 21 at this time is as shown in FIG. 2, and since the lock piece 24 and the front surface 25 are separated, the rear parallel link 14 hangs down from the intermediate shaft 12 due to its own weight. The rear surface 27 of the rear parallel link 14 abuts against the stopper 26 and is stopped, so that the position of the front parallel link 18 is determined by the lower parallel link 16,
The weeding body 29 is positioned at position A for mowing.

When the weeding body 29 of the reaping section 28 is near the ridge, for example, when air or oil is sent to the cylinder 21 to extend the piston 22, the upper parallel link 15
This is because the shaft attachment part of the rotary shaft 19 protruding forward from the intermediate shaft 12 rotates in an arc in the A direction.

As the shaft attachment part of the rotating shaft 19 rotates, the front parallel link 1
8 moves upward, and the lower parallel link 16, which is pivoted 20 to the front parallel link 18, also moves upward while maintaining the relationship of the parallelogram frame. However, until the lock piece 24 provided on the lower parallel link 16 does not touch the front surface 25 of the rear parallel link 14, there is no action to push the rear parallel link 14 itself forward, so the rear parallel link The rear surface 27 of 14 is the stator 2
It does not move at all while it is in contact with the par 26. Therefore, the cutting section 28, which includes the grass cutting body 29, the pulling device 30, the cutting blade 31, the culm conveying device 32, the raking device 33, etc., remains parallel to the ground. The cutting height is adjusted by moving upward while retracting obliquely from the cutting position A to the mid-ascent position B. When the piston 22 further extends from the state shown in FIG. Since the reaping section 28 is rotated and raised around the intermediate shaft 12, the distal end of the reaping section 28, in particular, gradually moves forward until it reaches the maximum raised position C. Therefore, during this time, the tip of the cutting section 28 does not come out in front of the vertical line xx, so the tip of the cutting section 28 does not collide with foreign objects.

(Effects) As described above, conventionally, a traveling device is provided below the traveling frame, an automatic feeding type threshing device is mounted on the upper part of the traveling frame, a reaping section is provided in front of the traveling frame, and the reaping section is installed on the rear side. A parallel link including 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 that operates the parallel link, have been known. However, conventionally known devices have a defect that when the reaping section is moved upward for turning, inspection, etc., the tip of the reaping section collides with an object and is damaged. This is because when the reaping section moves upward, it rises so as to protrude due to the oblique forward force.

However, in the present invention, the traveling device 2 is provided at the lower part of the traveling frame l.
The automatic feeding type threshing device 5 is provided at the top, and the reaping section 28 is provided at the front part, and the reaping section 28 is configured to move up and down in parallel via a parallel link mechanism, and the parallel link mechanism is locked above a certain height. A combine harvester configured to be automatically locked by a member so that it will not move up and down in parallel but will move up and down in a rotational manner, so that it will suddenly move up or down above a certain height, and a traveling frame 1. Traveling device 2 at the bottom
An automatic feeding type threshing device 5 is provided on the upper part of the frame 1, and an intermediate shaft 12 in the left and right direction is provided at the front side of the traveling frame 1, and the upper end of the rear parallel link 14 and the upper parallel link 15 are connected to the intermediate shaft 12 The rear parallel link 1 is pivoted at the front and rear intermediate position.
The rear end of the lower parallel link 16 is pivoted 17 to the lower end of 4,
A rotating shaft 19 is provided at the front end of the upper parallel link 15 to which the upper end of the front parallel link 18 is pivoted, and the front end of the lower parallel link 16 is pivoted at a vertical intermediate position of the front parallel link 18. The tip of the piston 22 of the cylinder 21 is pivotally attached 23 to the rear end of the upper parallel link 15, and the lower parallel link 16 is configured to abut and lock against the rear parallel link 14 when rotated beyond a certain level. Since the combine harvester is provided with a lock piece 24 and has a reaping part 28 fixed to the lower end of the front parallel link 18, the machine can move forward by rotating the drive wheel 3 and rotating the traveling device 2, and the machine can move forward and reap. When the weeding body 29 of the portion 28 is near a ridge, for example, when air or oil is sent to the cylinder 21 to extend the piston 22, the upper parallel link 15 moves toward the intermediate shaft 12.
Since the pivoting part of the rotating shaft 19 protruding forward from the center rotates in an arc in the direction A, the front parallel link 18 moves upward as the pivoting part of the rotating shaft 19 rotates. In this case, the lower parallel link 1
The lock piece 24 provided on the rear parallel link 14
There is no action to push the rear parallel link 14 itself forward until it hits the front surface 25 of the rear parallel link 1.
Since the rear surface 27 of 4 is in contact with the stopper 26 and does not move at all, the reaping section 28 is moved up while retracting diagonally backward from the reaping position A to the mid-ascent position B while remaining parallel to the ground. Therefore, the piston 22
Is Figure 3'? When further extended from the state t, the lock piece 24 provided on the lower parallel link 16 comes into contact with the front surface 25 of the rear parallel link 14 and locks the parallel link,
The reaping section 28 can be moved upward as desired, and at that time, the tip of the reaping section 28 will not come out in front of the vertical line x-x, so the tip of the reaping section 28 will not collide with foreign objects. do not have.

[Brief explanation of drawings]

FIG. 1 is a side view of the main parts, and FIGS. 2 to 4 are side views illustrating the operation. Explanation of symbols 1... Traveling frame, 2... Traveling device, 3... Drive wheel, 4... Idler wheel, 5... Automatic feed type threshing device,
6... Endless shell culm supply device, 7... Front frame rod,
8... Rear frame rod, 9... Suspension base, 10... Horizontal part. DESCRIPTION OF SYMBOLS 11... Vertical part, 12... Intermediate shaft, 13... Case, 14... Rear parallel link, 15... Upper parallel link, 16... Lower parallel link, 17... Shaft mounting, 1
B... Front parallel link, 19... Axial attachment, 20...
Shaft mounting, 21... Air cylinder, 22... Piston, 23... Extension rod, 24... Lock piece, 25...
Front, 26... Stole/Par, 27... Rear, 28
...Reaping section, 29... Grass cutting body, 30... Pulling device, 31... Cutting blade, 32... Culm conveying device, 33...
- Scraping device.

Claims (2)

[Claims] (1) A traveling device 2 is provided at the lower part of the traveling frame 1, an automatic feeding type threshing device 5 is provided at the upper part, and a reaping section 28 is provided at the front part, and the reaping section 28 is configured to move up and down in parallel via a parallel link mechanism, The parallel link mechanism is configured so that above a certain height it is automatically locked by a locking member so that beyond that it moves up and down in a rotational manner instead of moving up and down in parallel, and above a certain height it does not move rapidly or suddenly down. Combine harvester. (2) A traveling device 2 is provided at the lower part of the traveling frame 1, and an automatic feeding type threshing device 5 is provided at the upper part, an intermediate shaft 12 in the left and right direction is provided at the front position of the traveling frame 1, and the intermediate shaft 12 is provided at the rear. The upper end of the side parallel link 14 and the upper parallel link 15 are pivoted at a front-rear intermediate position, the rear end of the lower parallel link 16 is pivoted to the lower end of the rear parallel link 14, and the upper parallel link 15 is pivoted. A rotating shaft 19 is provided at the front end, and the upper end of the front parallel link 18 is pivotally attached to this, and the front end of the lower parallel link 16 is pivoted at a vertical intermediate position of the front parallel link 18.
0, and a cylinder 21 is attached to the rear end of the upper parallel link 15.
The tip of the piston 22 is pivoted 23, and when the lower parallel link 16 rotates beyond a certain level, the rear parallel link 1
This combine harvester is provided with a locking piece 24 that abuts on and locks the front parallel link 18, and a reaping part 28 is fixed to the lower end of the front parallel link 18.