Gear control device for tractor

Abstract

The invention discloses a gear control device for a tractor. The gear control device comprises a main modified flexible shaft, an auxiliary gear shift flexible shaft, a main gear shift flexible shaft, a flexible shaft bracket, a gearbox cover, an auxiliary gear shift fork rocker arm, an auxiliary gear shift flexible shaft rocker arm, a main modified flexible shaft rocker arm, a return spring, a main modified pull rod, a main gear shift lever, a guide sleeve, a main gear shift flexible shaft rocker arm, a pin shaft, a connection bolt, a fixed plate, a main gear shift lever seat, an I gear reverse fork, an II-III gear fork, an auxiliary gear shift rocker arm, an auxiliary gear shift fork, a limit lever and a spacing plate. The main gear shift flexible shaft rocker arm is arranged on a guiding sliding block and is connected with the main gear shift lever in the axial direction through a guide rail. The gear control device has a simple and compact structure, is convenient and sensitive to operate, is reduced in cost, is reliable in gear engaging, and is especially suitable for steering wheel tractors.

Description

technical field [0001] The invention relates to the technical field of tractors, in particular to a tractor gear control device. Background technique [0002] At present, the known tractor is an important means of transport in rural areas. Although the gear control device of its front-drive chassis gearbox has been improved for many years, its gear control mechanism is still similar to that of the "Gongnong-12" walking tractor. Since the gear control mechanism has not been changed, the long-arm hard rod is still used to directly shift gears, so that the gear control lever swings with the armrest seat when the tractor is turning. The comfort is poor, the labor intensity is high, and the long-arm hard lever shifting method is easy to deform during long-term use, resulting in disordered gears and out-of-gear phenomena. Contents of the invention [0003] The object of the present invention is to provide a tractor gear shift control device with simple structure in view of the ...

AI Technical Summary

Problems solved by technology

[0002] At present, the known tractor is an important means of transport in rural areas. Although the gear control device of its front-drive chassis gearbox has been improved for many years, its gear control mechanism is still similar to that of the "Gongnong-12" walking tractor. Since the gear control mechanism has not been changed, the long-arm hard rod is still used to directly shift gears, so that the gear control lever swings with the armrest seat when the tractor is turning. Poor comfort, high labor intensity, and the long-arm hard lever shifting method is easy to deform during long-term use, resulting in disordered gears and disengagement

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