Gearshift device for testing automobile gearbox

Abstract

The invention provides a gearshift device for testing an automobile gearbox, which is simple in structure, can not only realize fast shift, but also has low maintenance cost, high reliability, stability and safety performance, and can automatically operate complex movement. The gearshift device comprises a pedestal. A cylinder is arranged under the pedestal. A working bench is arranged above the pedestal. The center of the pedestal is provided with a through hole. A piston rod of the cylinder passes through the through hole and is fixedly connected with the bottom of the working bench. The pedestal is fixedly provided with a guide block. The guide block is provided with a jack. A guide rod passes through the jack and the pedestal. One end of the guide rod is fixed on the bottom of the working bench, and the other end of the guide rod is fixedly connected with a support plate. The working bench is slidably connected with a servo electric cylinder which is externally connected with a gearshift mechanism.

Description

technical field [0001] The invention relates to the technical field of gearbox testing equipment, in particular to a shifting device for automobile gearbox testing. Background technique [0002] With the development of the economy and the advancement of science and technology, the demand for vehicles equipped with automatic transmissions is increasing day by day. However, the hydraulic shifting structure used in the shifting device of the existing automatic transmissions, in the process of shifting, due to factors such as temperature and wear , there may be stick-slip problems, and there may be serious problems such as seal leakage at extreme temperatures, and complex backup safety equipment must be used to ensure safety performance, and because of hysteresis effects, quiet zones, supply pressure and temperature changes , the control is very complicated, and the installation and maintenance costs are relatively high. Contents of the invention [0003] In view of the above...

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Problems solved by technology

[0002] With the development of the economy and the advancement of science and technology, the demand for vehicles equipped with automatic transmissions is increasing day by day. However, the hydraulic shifting structure used in the shifting device of the existing automatic transmissions, in the process of shifting, due to factors such as temperature and wear , there may be stick-slip problems, and there may be serious problems such as seal leakage at extreme temperatures, and complex backup safety equipment must be used to ensure safety performance, and because of hysteresis effects, quiet zones, supply pressure and temperature changes , the control is very complicated, and the installation and maintenance costs are relatively high

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