a working machine

Abstract

The invention provides an operation machine. The operation machine comprises a walking device, a hydraulic stepless speed change, a gearbox and a speed change control mechanism; the speed change control mechanism comprises a main transmission path, an auxiliary transmission path, a main gear change lever, a main change lever mounting base, a first connecting rod, a positive tooth joint ball head, a negative tooth joint ball head, a shift block, an auxiliary gear shift lever, a second connecting rod, a linking fork and a shift plate, wherein the positive tooth joint ball head is installed at the rear part of the main change lever mounting base; two mounting holes are installed at the rear part of the main change lever mounting base; the first connecting rod is connected to the lower end of the positive tooth joint ball head; the negative tooth joint ball head is installed at the lower end of the first connecting rod; one end of the shift block is fixedly connected to the negative tooth joint ball head, and the other end of the shift block is connected to the shaft at the hydraulic stepless speed change back; the shift block can swing up and down by around the shaft of the hydraulic stepless speed change back; the lower end of the auxiliary gear shift lever is connected to the linking fork. According to the operation machine provided by the invention, the hydraulic stepless speed change is adopted, when the operation gear is selected, the speed regulation of the operation of a harvester can be completed with only one rod, thus being simple and easy, and the working efficiency and the safety of the operation can be improved.

Description

technical field [0001] The invention relates to an operating machine, in particular to a combine harvester with a hydraulic stepless variable speed single-lever control system. Background technique [0002] With the progress of society and the development of science and technology, more and more machinery and equipment are applied to agricultural production, and the combine harvester is one of them. The combine harvester can complete the harvesting, threshing, separating the stems, removing debris and other processes of cereal crops at one time, and directly obtain various corresponding finished or semi-finished crops from the field. [0003] It is inevitable for the combine harvester to perform variable speed operation during operation. Most of the traditional combine harvesters adopt mechanical gear shifting. Therefore, to control the speed of the combine harvester during operation, the clutch must be stepped on, and two levers must be operated together. The structure is ...

AI Technical Summary

Problems solved by technology

Most of the traditional combine harvesters adopt mechanical gear shifting, so to control the speed of the combine harvester during operation, the clutch must be stepped on, and two levers must be operated together. The structure is complex and the operation is cumbersome, especially when turning.

[0004] In order to overcome the above-mentioned deficiencies, there is a need for a speed change system of a combine harvester in this field, which can solve a series of problems such as complicated and troublesome operation of the combine harvester, and too long turning time.

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