Fatigue testing machine for gear shift fork

Abstract

The invention proposes a fatigue testing machine for a gear shift fork, and the machine comprises a substrate. The substrate is provided with a transmission mechanism, a testing mechanism, a loading braking mechanism, and a position adjustment mechanism. The transmission mechanism comprises a motor and a speed reducer, wherein the motor is connected with the speed reducer. The testing mechanism consists of a transmission box part and a shift fork testing part. The transmission box part comprises a synchronizer and a box body, wherein the synchronizer is fixed in the box body, and is connected with the speed reducer. The shift fork testing part comprises a shift fork shaft, an operating rod, a cylinder, and a cross beam, wherein the shift fork shaft is fixed at the lower part of the cross beam. The cylinder is fixed at the upper part of the cross beam, and the operating rod is connected with the cylinder through a sensor. The other end of the operating rod is provided with a gear shift pointer. The loading braking mechanism comprises a brake which is connected with the synchronizer. The position adjustment mechanism comprises a Z-direction adjustment mechanism and a Y-direction adjustment mechanism. The cross beam is fixed on the Z-direction adjustment mechanism and the Z-direction adjustment mechanism is fixed on the Y-direction adjustment mechanism. The machine is convenient to operate, is reliable in data, is good in universality, reduces the development cost, and prompts the product innovation.

Description

technical field [0001] The invention relates to a detection device for a transmission fork of an automobile, in particular to a testing machine for fatigue performance of a transmission fork. Background technique [0002] The gearbox is an important transmission device in the variable speed control system, which is widely used in automobiles and other machinery, and the variable speed fork is one of the key components in the gearbox. [0003] At present, the processing and testing of the complete gearbox is relatively mature, and related testing equipment has been developed at home and abroad; however, there is still a lack of mature testing equipment for the fatigue test of the shift fork in the gearbox. The traditional detection method is: use the assembled gearbox to test on the gearbox test bench, and indirectly test the fatigue life of the shift fork by testing the performance of the entire gearbox. This method forces companies that are solely engaged in the production...

AI Technical Summary

Problems solved by technology

This method forces companies that are solely engaged in the production of shift forks to be equipped with a complete set of gearbox test benches. At the same time, each research and development of a shift fork requires the purchase of a complete set of gearboxes for bench testing. For enterprises and production enterprises, it is extremely inconvenient, the cost is too high, and there is a certain waste of resources, which leads to great constraints on the development of new products

Images