JPH1056843A - Reaping pretreatment part for usual type combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a grass diving tool, etc., from thrusting into a field surface and improve the operating efficiency in reaping operations. SOLUTION: This reaping pretreatment part for a usual type combine harvester is obtained by installing the plural reaping treatment parts equipped with grass dividing parts 12, reaping devices 14, ground contact units 16 and conveyors 15 for conveying reaped grain culms to an auger 8 at the rear on the left and right side by side, providing a feed conveyor for conveying the reaped grain culms collected with the auger 8 to a rear thresher so as to freely drive, lift and lower and attaching the conveyors 15 for the respective reaping treatment parts to a reaping main frame 10 protruding forward from the feed conveyor in a fixed positional state. Furthermore, supporting frames for the respective reaping treatment parts for supporting the grass dividing tools 12, the reaping devices 14 and the ground contact units 16 are supported with the reaping main frame 10 so as to separately, freely and vertically move. The reaping pretreatment part is composed so that the grass dividing tools 12 and the reaping devices 14 may vertically be moved following up to unevennesses of a field surface for each reaping treatment part 7 by the travel of the machine body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a plurality of cutting processing units provided with a weeding tool, a cutting device, a grounding body, and a transfer device for transferring a cut culm to a rear auger. The present invention relates to a pre-cutting unit of a normal combine, which is provided with a supply conveyor for transporting the harvested grain culms gathered by the auger to a rear threshing device so as to be able to drive up and down.

[0002]

2. Description of the Related Art Conventionally, in the above-mentioned conventional pre-cutting section of a combine, as disclosed in Japanese Patent Application Laid-Open No. Hei 7-115821, the cutting section of each cutting section is associated with the running of the body. The whole was configured to move up and down following the unevenness of the field scene individually.

[0003]

According to the above-mentioned conventional construction, since the entire heavy reaping unit is moved up and down for each reaping unit, a part of the ground contacting body is cut off. Due to the weight of the part, it sinks into the field scene, and accordingly, a weeding tool or the like sometimes thrusts into the field scene from the tip side.

An object of the present invention is to prevent a weeding tool or the like from plunging into a field scene and to improve the workability of a mowing operation.

[0005]

[Means for Solving the Problems]

[Structure] The characteristic structure of the pre-cutting unit of the ordinary combine according to the present invention is as follows. In the pre-cutting unit of the ordinary combine described in the beginning, the conveying device of each cutting unit is extended forward from the supply conveyor. The support frame of each mowing processing unit which is mounted in a fixed position on the taken-out mowing main frame, and supports the weeding tool, the mowing device and the grounding body, is supported by the mowing main frame so as to be freely movable up and down. The mowing device and the mowing device are configured to move up and down in accordance with the unevenness of the field scene for each mowing processing unit as the aircraft travels.

According to the above construction, the weeding implement and the mowing device move up and down independently of the transport device following the unevenness of the field scene with the travel of the machine body. The weight of the vertically moving portion is reduced as compared with the case where the entire mowing processing unit including the cutting processing unit is vertically moved, and the ground contact body is unlikely to sink in the field scene.

[Effect] Therefore, the ground contact body is unlikely to sink into the field scene, so that it is possible to prevent the weeding tools and the like from sticking into the field scene, and it is possible to improve the workability of the mowing work.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the front of a conventional combine for cutting and threshing beans. The ordinary combine combines a traveling machine body 2 supported by a pair of left and right crawler traveling devices 1 with a threshing device 3, a steering unit 4, a prime mover and the like mounted thereon, and a harvesting pre-processing unit 5 via a platform frame 6. At the front end of the traveling machine body 2, it is swingably supported around a horizontal axis X1.

As shown in FIGS. 2 and 3, the pre-cutting processing unit 5 includes a pair of left and right row crop headers 7 that cuts two planted grain culms and conveys them rearward. An auger 8 is provided to collect the harvested grain culm at one place in the left-right direction and sends it backward, and a supply conveyor 9 for transporting the harvested grain culm from the auger 8 to the threshing apparatus 3.

The pair of row crop headers 7 are supported at the front end of the platform frame 6 via a cutting main frame 10.
Is composed of a weeding device 12 composed of a plurality of pipe materials.
And a disk-shaped cutter 14 driven and rotated by a hydraulic motor 13
(An example of a mowing device) is provided in a pair on the left and right corresponding to each strip of the planted cereal culm, and a vertically-turned projection having a rear-up tilting posture for picking up the culled culm at the start end side and carrying it. A chain 15 (an example of a conveying device) is fixedly mounted on the reaping main frame 10 at the rear side between the pair of cutters 14, and a gauge wheel 16 (an example of a grounding body).
Are provided on the left and right corresponding to the respective sections. In this configuration, each of the weeding tool 12, the cutter 14, and the gauge wheel 16 and the corresponding portion of the chain 15 with projections constitute one cutting processing unit 7A (or 7B, 7C, 7).
D).

As shown in FIG. 3, the cutter 14 is provided with a main frame for cutting so that the center axis of the cutter is located in front of the starting end of the chain 15 with projections and sandwiches the two planted grain culms to be cut. Each is supported by a pair of cutter support frames 18 extending forward from the front end of the cutter 10, and the rotation direction of both cutters 14 is directed inward so as to cut the two planted grain culms from the front side to the rear side. It is configured so that the culm can be harvested and transported smoothly.

The gauge wheel 16 is mounted on the cutter support frame 18 so that the cutters 14 are allowed to move up and down separately according to the unevenness of each strip in the field scene as the machine runs. In addition, the base end of each cutter supporting frame 18 is supported at the front end of the cutting main frame 10 so as to freely swing up and down around the horizontal axis Y (see FIG. 2).

As shown in FIG. 4, each gauge wheel 16 raises its rotation support shaft 20 upward, and penetrates vertically through a vertical pipe 21 fixed to the cutter support frame 18 so as to be slidable up and down. Male screw part 2 formed on 23
4 is screwed into a female screw portion 22 provided on the side of the vertical pipe 21, and the lower end of the screw operating member 23 is rotatably inserted into a hole provided on the side of the rotation support shaft 20. The vertical movement is regulated, and the height of each cutter 14 from the field scene can be changed and adjusted by manual operation of the operation member 23.

As shown in FIGS. 2 and 3, a pair of left and right support arms 2 extending forward from the platform frame 6 side.
5 is supported by the upper ends of the left and right side walls of the platform frame 6 so as to be able to swing up and down around the horizontal axis P, and a hydraulic cylinder 26 that swings and drives the support arm 25 is provided. Erect horizontal frame 27
And the support 19 raised from the cutter support frame 18 are connected by a plurality of chains 28A.

The chain 28A is gently dropped so that the cutters 14 are allowed to move up and down individually in accordance with the unevenness of each strip in the field scene during harvesting.
When the headland is reached, the support arm 25 is lifted by the hydraulic cylinder 26 to lift both row crop headers 7 via the chain 28A so that the gauge wheel 16 floats.

[Another embodiment] The chain 15 with the protrusions
Instead of this, the conveying device may be configured by providing a pair of left and right conveying belts of a horizontal type for pinching and conveying the grain culm.

[Brief description of the drawings]

FIG. 1 is a side view showing a front portion of a conventional combine.

FIG. 2 is a longitudinal side view of a pre-cutting unit.

FIG. 3 is a plan view showing a cutting processing unit.

FIG. 4 is a partially cutaway side view showing a mechanism for changing and adjusting the height of a cutter from a field scene.

[Explanation of symbols]

 3 Threshing Device 7A, 7B, 7C, 7D Cutting Processing Unit 8 Auger 9 Supply Conveyor 10 Cutting Main Frame 12 Weeding Tools 14 Cutting Device 15 Transport Device 16 Grounding Body 18 Supporting Frame

Claims (1)

[Claims] 1. A plurality of cutting processing units each including a weeding tool, a cutting device, a ground contact body, and a transfer device for transferring a cut culm to a back auger are arranged side by side on the left and right, and collected by the auger. It is a pre-cutting processing section of a normal combine provided with a supply conveyor that conveys a harvested grain culm to a rear threshing device so as to be able to drive up and down, and extends a transfer device of each cutting processing section forward from the supply conveyor. Attached in a fixed position to the harvested main frame, the support frame of each mowing processing unit supporting the weeding implement, the mowing device, and the grounding body, are supported by the mowing main frame so as to be freely movable up and down. A pre-cutting processing unit for a normal combine, wherein the weeding tool and the reaping device move up and down in accordance with the unevenness of the field scene for each of the reaping processing units as the machine body travels.