JPH0448672Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) A walking method in which the culms discharged from the threshing section of a walking combine are sent to a cutting device consisting of a fixed blade and a rotary blade by a pair of feed rolls and shredded. This relates to a cylinder cutter for type combine harvesters.

(Prior art) Conventionally, this type of cylinder cutter for combine harvesters has problems in design and problems in maintenance and inspection of cutting blades, etc., as described in Japanese Utility Model Application Publication No. 62-21836. In order to construct the cylinder cutter with one side as the center of rotation and the other side largely open, the cylinder cutter frame may be provided over the entire rear width of the threshing device.

(Problems to be solved by the invention) This invention solves the above-mentioned conventional technology by providing a control section on one side of the fuselage, in parallel with the threshing device, or protruding slightly rearward from the rear edge of the threshing device. In walk-behind combine harvesters, if the cutter mounting frame is provided across the entire rear width of the threshing device, the operator's maneuvering space becomes narrower, and especially when splitting the grain, the cutter mounting frame and the uncut culm are separated. The drawback was that it had to be maneuvered in a narrow space between the two.

Furthermore, since the cylinder cutter itself is narrow compared to the width of the threshing device, it is sufficient to make the cutter mounting frame similarly narrow, but if the mounting frame is made too narrow, it will cause problems as described above. This has the drawback that the cutter mounting frame cannot be opened wide with one side as the center of rotation for maintenance and inspection of the cutting blade.

This invention attempts to solve the above contradictory problems.

(Means for solving the problem) A threshing device 2 is installed on one side A of the machine body 1, and the threshing device 2 is installed in parallel with the threshing device 2 on the other side B, or the threshing device 2 is installed on the other side B.
In a walk-behind combine harvester in which a control section 3 is provided slightly protruding rearward from the trailing edge, a cylinder cutter 4 for cutting the culm sent out from the threshing device 2 is mounted on a mounting frame 5 on one side of the rear of the threshing device 2. A walk-behind combine that is mounted on a rack, and that only the front frame 6 of the mounting frame 5 is extended toward the control section 3 side, and a rotation fulcrum 8 for opening the cylinder cutter 4 is provided at the end of the extension section 7. It has a cylinder cutter configuration.

(Operations and effects of the invention) Even when performing splitting work, that is, reaping and threshing the center of a planted grain culm, the operator can control the distance between the planted grain culm and the mounting frame 5 of the cylinder cutter 4. In addition to allowing safe operation in a wide space, when opening the cylinder cutter for maintenance and inspection of the cutting blade, etc., there is a The other side can be largely opened around the rotation fulcrum 8 provided, making maintenance and inspection easy.

(Example) In the illustrated example, the walk-behind combine harvester includes a reaping and conveying section 9 mounted on the front part of the machine body 1, a threshing device 2 mounted on one side A of the machine body 1, and a prime mover mounted on the other side B of the machine body 1. 10, a control section 3, etc. The control section 3 is composed of a steering lever 12 and the like, and is positioned so as to protrude slightly rearward from the rear edge of the adjacent threshing device 2. Also, 13 is a crawler, 14
is the grain removal cylinder.

The cylinder cutter 4 is conventionally known, and has a pair of front and rear feed rolls 15, 15 pivoted on top of both side frames 14, 14, and a crank finger 16 on the front feed roll 15. The culm is provided so that the culm can be scraped into it. Also, both side frames 1
4, 14 Below is a rotating disk 1 attached to the input shaft 17.
A rotary blade 19 is provided between the outer peripheries of the rotary blades 8 and 18, and a fixed blade 20 that faces the rotary blade 19 and is fixed between the side frames 14 and 14 is provided.

The mounting frame 5 of the cylinder cutter 4 is made of pipe material between one side plate 21 located at the rear of the threshing device 2 on one side A and the other side plate 22 located inward from the other side B of the threshing device 2. Upper and lower front frames 6,6
Then, a rear frame 23 made of pipe material and located at the rear upper part is constructed, and furthermore, only the front frames 6, 6 are extended toward the control part 3 side, and the ends of the extension parts 7 are connected by the vertical frame 24. It is configured as follows.

Pins 8, 8, which serve as pivot points, are attached vertically to the upper and lower parts of the vertical frame 24, and the pins 8, 8 are attached to bosses (not shown) provided at the rear of the other side of the threshing device 2. The mounting frame 5 is configured to be able to rotate.

26 is a locking body, which is rotatably supported on a shaft 27 protruding from one side plate 21, and has a threshing device 2 at its tip.
An engaging portion 29 that can be locked to a locking pin 28 provided on one side is provided. 30 is a spring,
The locking body 26 is tensioned so as to be biased in the engagement direction.

31, 31 are both side frames 1 of cylinder cutter 4
The locking rods 31 and 31 are fixed to the upper part of the mounting frame 5, and the side frames 14 are bent outward. The flange portion 32 to be formed and the lower front frame 6
The cylinder cutter 4 is attached to the mounting frame 5 by a bolt 34 via a receiving member 33, and the cylinder cutter 4 is configured to be detachable from the mounting frame 5.

35 is an exhaust culm conveying chain, and 36 is a cut culm discharge cylinder.

In addition, the cylinder cutter 4 and the mounting frame 5, except for the culm supply port 37, are covered with covers 38, 38 on their top and back surfaces, and the extension portion 7 of the front frame 6 of the mounting frame 5 is also covered. It is covered with 38.
39 is a cover that covers the exhaust culm conveying chain 35 and the exhaust culm being transferred, 40 is a transmission pulley, and a safety cover 41 is also provided on the transmission part.

The waste culm that has been threshed by the threshing device 2 of the combine is transferred by the waste culm conveying chain 35 and supplied to the cylinder cutter 4 from the supply port 37, while being folded in half by the crank finger 16. The material is fed between the rotary blade 19 and the fixed blade 20 by feed rolls 15, 15 and shredded.

When operating this walk-behind combine harvester, the cylinder cutter 4 is located at the rear of one side of the threshing device 2, only the front frame extension 7 of the mounting frame 5 is located on the operating section 3 side, and the operating section 3 Since the sides are wide open, you can work safely with a wide maneuvering space.

This is particularly effective for splitting work in which uncut culms are located on the side of the control section 3.

In addition, when inspecting the cutting blades 19, 20, etc., the locking body 26 is rotated about the shaft 27 against the spring 30, and the locking pin 28 on the threshing device 2 side and the engaging portion 2 are rotated.
At the same time, the mounting frame 5 is rotated about the pins 8, 8, which serve as pivot points at the ends of the front frames 6, 6, and the extensions 7, and the threshing device 2 and the cylinder cutter 4 are disengaged from each other. This is done with an open space between the two. On this occasion,
Since the cylinder cutter 4 rotates around the ends of the extensions 7 of the front frames 6, 6 of the mounting frame 5, the opening distance between the cylinder cutters 4 can be made large.

Furthermore, when the culm focusing device is attached to the rear of the cylinder cutter 4, it can be constructed compactly by partially intervening in the space behind the extension portion 7 of the mounting frame 5.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a perspective view of a combine harvester seen diagonally from behind, Fig. 2 is a perspective view of a cylinder cutter, and Fig. 3 is a partially broken cylinder cutter. FIG. 4 is a side sectional view of the cylinder cutter. In the figure, reference numeral 1 indicates the fuselage, 2 indicates a threshing device, 3 indicates a control section, 4 indicates a cylinder cutter, 5 indicates a mounting frame, 6 indicates a front frame, 7 indicates an extension section, and 8 indicates a pivot point.

Claims (1)

[Scope of utility model registration request] A threshing device 2 is installed on one side (a) of the machine body 1, and a threshing device 2 is installed in parallel with the threshing device 2 on the other side (b).
In a walk-behind combine harvester in which a control section 3 is provided slightly protruding rearward from the trailing edge, a cylinder cutter 4 for cutting the culm sent out from the threshing device 2 is mounted on a mounting frame 5 on one side of the rear of the threshing device 2. A walk-behind combine that is mounted on a rack, and that only the front frame 6 of the mounting frame 5 is extended toward the control section 3 side, and a rotation fulcrum 8 for opening the cylinder cutter 4 is provided at the end of the extension section 7. cylinder cutter.