Combine

Abstract

Disclosed is a running vehicle comprising a straight drive transmission (53) for transmitting the power of an engine (17) to the left and right running sections (2) and a turning transmission (54) for transmitting the engine power to the left and right running sections while reversing rotation, a straight drive manual operation tool (13) of the straight drive transmission (53), and a turning manual operation tool (10) of the turning transmission, wherein the turning operation mechanism is simplified while turning operation performance is enhanced. A control body (131) rotatable about two axes (P, S) intersecting perpendicularly is provided, and the control body controls the turning transmission to perform turning operation through a turning interlock mechanism (180) by forward / reverse rotation about the first axis (P) caused by the turning operation of the turning manual operation tool, and controls the straight drive transmission to perform a speed change operation by forward / reverse rotation about the second axis (S) caused by the speed change operation of the straight drive manual operation tool, wherein the turning interlock mechanism is equipped with a hydraulic cylinder (193) for operating the turning transmission to turn.

Description

technical field [0001] The present invention relates to a combine harvester equipped with a reaping device and a threshing device, and more specifically relates to a combine harvester for continuously harvesting grains by steering and operating a traveling body to move along uncut grain stalk rows in a farm. Background technique [0002] Conventionally, in a combine harvester, power from an engine mounted on a traveling body is transmitted through a transmission for straight travel, and at the same time, a transmission for turning reversely rotates and transmits power to traveling parts such as crawler belts for left and right travel. [0003] An example of the combine harvester of such a structure is disclosed by patent document 1. In the combine harvester of patent document 1, the drive output amount of the transmission for straight travel, ie, the straight travel speed of a traveling body is adjusted by the operation amount of the manual operation elements for straight tr...

AI Technical Summary

Problems solved by technology

[0007] However, in the combine harvester of Patent Document 1, long rods, arms, pivot pins, etc. are often used in the mechanical linkage mechanism, and since it is a rather complicated structure, the cost of parts required in the mechanical linkage mechanism is high. , not commensurate with the cost reduction requirements that have risen in recent years

[0008] Moreover, in the combine harvester of Patent Document 1, since the travel body is turned only by the operation of the manual operation member for turning, even if it is easy to turn a large amount, when moving along the row of uncut grain stalks on the farm, the It is also very troublesome to operate the manual operation parts for the rotation

In order to carry out the line and line combination operation of turning the traveling body along the row of uncut grain stalks on the farm, an actuator configured to make the rotary transmission perform a rotary operation is provided, but since the actuator is arranged in the gearbox, it has Can not simply constitute a gearbox and other issues

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