JPH09275739A - Reaping part sliding structure in combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject simplified structure improved in operability and workability, so designed that a control lever for transverse sliding of a reaping part is set up between a reaping main frame and a boarding drive part. SOLUTION: The lift swing boss 12a for a reaping main frame 12 vertically swingable around the transverse axis X is mounted so as to be slidable relatively to the swing support shaft 13 on the machine body side, and a control lever 24 for transverse sliding of a reaping part capable of sliding operation of the reaping main frame 12 by manual operation is set up between the reaping main frame 12 and a boarding drive part. It is preferable that the control lever 24 is located closely to the boss 12a so as to enable the proximity of the swing basal end of the reaping main frame 12 to be operated by the control lever 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine, and more specifically, it offsets the reaping section at the front of the machine to the lateral side of the machine, or adjusts the machine according to the work form such as cutting and cutting work. The present invention relates to a combine harvester slide structure that can be positioned in the center.

[0002]

2. Description of the Related Art Conventionally, in sliding a reaper in a combine in a lateral direction, Japanese Patent Application Laid-Open No. 5-1538 has been proposed.
No. 41 gazette, a structure in which the raising / lowering rocking boss of the mowing main frame is slid laterally with respect to the rocking fulcrum shaft on the machine side, or, as shown in Japanese Utility Model Laid-Open No. 2-55529, There is a structure in which a cutting frame that supports a raising device, a cutting device, and the like is laterally slid with respect to the tip of the cutting main frame.

[0003]

According to the former means, since the slide support portion of the mowing portion is provided at a high position, straw debris, weeds and the like generated during the mowing work are entangled with the slide support portion. Although it has the advantage that it does not occur, since the drive mechanism for sliding the cutting portion in the lateral direction is constituted by the screw shaft and the electric motor, there is an inevitable disadvantage that the cost is high. On the other hand, according to the latter means, since the drive mechanism for sliding the cutting frame in the lateral direction is constituted by the screw shaft and the manual handle which can be engaged with and disengaged from the screw shaft, the cost can be reduced. Although it has an advantage, since the slide support part of the mowing part is provided at a low position, there is a disadvantage that straw scraps and weeds generated during the mowing work are entangled with the slide support part. In order to slide the part, it is necessary to step down from the machine and rotate the screw shaft one by one, which makes the sliding operation of the cutting unit cumbersome. It is an object of the present invention to reduce the cost and improve the operability by devising a structure in which the reaper is slid laterally.

[0004]

According to a first aspect of the present invention, an elevating and lowering boss portion of a mowing main frame which is vertically movable about a horizontal axis is slid with respect to a swinging fulcrum shaft on a machine body side. An operation lever for lateral sliding of the reaping section is provided between the reaping main frame and the boarding operation section so that the reaping main frame can be slid by a manual operation. [Operation] By constructing the vertical swing boss of the mowing main frame so as to be slidable with respect to the swing fulcrum shaft on the machine side, the sliding support of the mowing unit produces straw chips, weeds, etc. When sliding the reaping main frame, an operating lever that uses the lever principle, or
The cutting mainframe can be slid with a light operating force by using the operating force of the screw feed type rotary operation lever.Furthermore, the operating lever is installed between the cutting mainframe and the boarding operation section. Therefore, it is possible to operate from the boarding operation unit without getting off the aircraft. [Effect] As a result of the above configuration, the slide support portion of the mowing unit is free from the entanglement of straw debris, weeds, etc., which are generated during the mowing work, and thus the mowing main frame has a low-cost configuration, and The slide operation can be performed from the boarding operation unit without getting off the aircraft.

According to a second aspect of the present invention, the operating lever for lateral sliding of the reaping section is disposed near an elevation swing boss of the main frame of the reaping main frame, and the operating lever for lateral sliding of the reaping section is used for the reaping main frame. It is configured so that it can be operated near the swing base end of. [Function] Since the operation lever for lateral sliding of the cutting unit is configured to be operable near the swinging base end of the cutting main frame,
It is possible to perform a sliding operation on the rocking fulcrum shaft on the machine body side with less rocking of the lifting rocking boss. [Effect] As a result of the above configuration, it is possible to smoothly operate the mowing main frame with the operation lever for lateral sliding of the mowing section.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to a combine for double-row cutting. As shown in FIG.
In this combine, a cutting unit 2 is connected to a front portion of a traveling machine body equipped with a crawler traveling device 1 so as to be able to move up and down around a horizontal axis X, and a threshing device 3 is mounted on the traveling machine body. The boarding operation unit 4 is arranged on one lateral side of 2.

The reaping section 2 includes a pair of left and right raising devices 5 for raising the lying planted culms in an upright posture, a clipper-type reaping device 6 for cutting the root of the raised culms, and a mowing grain culm. A pair of left and right scraping packers 7 that scrape and convey toward the rear in the center in the width direction, and a stalk of cultivated culm in an upright position, sandwiching the root side and gradually tilting sideways while locking the tip side. It is configured by including a vertical conveying device 9 and the like that conveys it backward while changing it and transfers it to the threshing feed chain 8.
As shown in FIG. 1, the bracket 22 of the machine body frame 11 is swingably driven around the horizontal axis X by the hydraulic cylinder 10.
It is configured to be supported by the harvesting main frame 12 supported by.

As shown in FIG. 4, a horizontal transmission shaft 13 having a hexagonal cross-section in the same axial center as the horizontal shaft X is provided, and the horizontal transmission shaft 13 is rotatable by a left and right bracket 14. It is supported by a bracket 22 of the machine body frame 11. The vertical swinging boss 12a of the mowing main frame 12 is externally rotatable relative to the lateral transmission shaft 13 via a bush 15 so as to be relatively rotatable and relatively slidable along the axis of the lateral transmission shaft 13. The slide support mechanism A is configured by fitting. The lateral transmission shaft 13
Power is transmitted from the prime mover side through an input pulley 16 attached to one shaft end of the bevel gear, which is externally fitted to the transmission shaft 13 so that torque can be transmitted and the slide boss 12a can be slid integrally. 17 to front and rear transmission shaft 18
The bevel gear mechanism 20 in the bevel gear case 19 which is externally fitted to the other end of the lateral transmission shaft 13 so as to be relatively rotatable is transmitted to each of the raising device 5, the mowing device 6, and the scraping packer 7 via the. A power transmission system is configured to transmit power to the vertical conveyance device 9 via the power transmission system.

As shown in FIG. 2, the raising device 5 and the mowing device 6 are configured to be movable laterally relative to the machine body via a mowing main frame 12, and the vertical conveying device 9 is provided.
Is configured such that the start end side moves left and right around the vertical axis Y on the transport end side.

As shown in FIG. 3, the lateral transmission shaft 13 is provided.
An arch-shaped rocking frame 21 that supports the cutting main frame 12 so as to be laterally movable with respect to the machine body frame 11 is provided near the center of the horizontal axis P, and this arch-shaped rocking frame is provided. 21 to the reaping main frame 12
Is placed. That is, the horizontal shaft 23 is installed across the pair of left and right brackets 22, 22 on the side of the machine frame 11,
The pipe-shaped boss portion 21a of the arch-shaped rocking frame 21 is relatively rotatably fitted on the horizontal shaft 23 so that the arch-shaped rocking frame 21 can be rocked around the horizontal axis P and positioned in the axial direction. The harvesting main frame 12 is mounted on the swing frame 21 so as to be laterally slidable. The hydraulic cylinder 10 for raising and lowering the reaper is spanned between the swing end of the swing frame 21 and the machine body frame 11. A slide guide 12a for lowering the surface pressure on the swing frame 21 is fixed to the lower surface of the harvesting main frame 12.

An operating lever 24 for lateral sliding of the reaper is provided between the arch-shaped swing frame 21 and the boarding operation unit 4 so as to be capable of crosswise operation in the front and rear and in the left and right. The operation lever 24 has a base end portion which is attached to a lateral side portion of the traveling mission case 26 so as to be rotatable around a horizontal axis.
5 is rotatably attached around the front-rear axis, and is configured to be operable left and right along a guide groove 27A of a lever guide 27 attached to the machine body side. And the operation lever 2
The vertical middle part of 4 is inserted into the long hole 28a of the engaging portion 28 provided on the lateral side of the cutting main frame 12, and the cutting main frame 12 is moved in accordance with the left-right swing operation of the operating lever 24. Is configured to be able to slide left and right.
Further, in the operation lever 24, by the engagement recesses 27a at both ends of the guide groove 27A, the position where the mowing part is offset for cutting work and the mowing part is normally housed in the lateral width of the machine body for splitting work. The position can be held at two working positions. Therefore, the operating lever 24
Is biased toward the engagement recess 27a side via a spring (not shown). Further, the elongated hole 28a of the engaging portion 28 provided on the lateral side portion of the reaping main frame 12 has a size that allows the raising and lowering of the reaping main frame 12 with respect to the operation lever 24 fixed in position with respect to the machine body. Is formed in.

As the cutting unit 2 slides laterally, the vertical transfer device 9 causes the output shaft 2 of the bevel gear mechanism 20 to move.
The front end side of the vertical conveying device 9 was laid across the reaping main frame 12 and the transmission case 30 on the rear surface of the raising device 5 so that the starting end side can be swung right and left with the axis Y of the fulcrum as a fulcrum. It is connected to the guide rod 31. The vertical transfer device 9 has a start end side connected to the guide rod 31 so as to be vertically slidable, and the start end side of the vertical transfer device 9 is moved up and down with the axis X of the lateral transmission shaft 13 as a fulcrum. When moved, the inheritance position of the grain culm from the raising device 5 is changed, and the handling depth of the grain culm is adjusted.

[Other Embodiments] In the above embodiment, the operating lever 24 for lateral sliding of the cutting section is directly engaged with the side surface of the cutting main frame 12 to utilize the lever action of the lever 24. Although the cutting main frame 12 was directly slid, as shown in FIG. 6, a rotary operation lever 24 provided with a screw shaft 24a was installed between the cutting main frame 12 and the arch-shaped swing frame 21. The harvesting main frame 12 may be configured to be slidable in the lateral direction. More specifically, a pair of left and right brackets 21b and 21b are attached to the swing frame 21, a screw shaft 24a is rotatably attached to the brackets 21b and 21b, and the brackets 21b and 21b are engaged with the screw shaft 24a from both upper and lower sides. The top members 33, 33 to be fitted together are fixed to a U-shaped bracket 34 that is open upward and supports the cutting main frame 12 so as to escape upward, and the cutting main frame is rotated by the rotation of the screw shaft 24a. 12 is configured to be operable left and right.

[Brief description of drawings]

1] Overall side view of combine

FIG. 2 is a plan view showing a horizontal sliding state.

FIG. 3 is a side view of a slide support mechanism.

FIG. 4 is a vertical sectional front view of a slide support mechanism.

FIG. 5 is a schematic front view showing how the operating lever is attached.

FIG. 6 is a plan view of the second embodiment.

FIG. 7 is a longitudinal sectional front view of the same.

FIG. 8 is a vertical side view of the same.

[Explanation of symbols] 4 Boarding operation part 12 Mowing main frame 12a Elevating rocking boss part 13 Rocking fulcrum shaft 24 Mowing part lateral slide operation lever X Horizontal axis core

Claims (2)

[Claims] 1. A vertically movable swing boss portion of a harvesting main frame that is vertically swingable around a horizontal axis is slidably attached to a swing fulcrum shaft on a machine body side, and the harvest main frame and a boarding operation unit are connected to each other. A combine harvester slide structure in which an operating lever for lateral slide of the harvester is provided between which a slide lever of the harvest main frame can be manually operated. 2. The operating lever for lateral sliding of the reaping section is arranged near the lifting swing boss of the main cutting frame, and the operating lever for lateral sliding of the reaping section operates near the swinging base end of the main cutting frame. The combine harvester slide structure according to claim 1, which is configured to be possible.