Diverter fatigue test bench and operating method thereof

Abstract

The invention discloses a diverter fatigue test bench and an operating method thereof. The fatigue test bench comprises an input end driving device, a diverter fixed work bench and an output end load simulation device, wherein the output end load simulation device comprises a horizontal load actuator capable of simulating the horizontal load of an output end, a vertical load actuator capable of simulating the vertical impact load of the output end, actuator erection supports and a rocker arm mechanism. The integral rocker arm mechanism is installed on an output end of the vertical load actuator, one end of the rocker arm mechanism stretches into a test environment box and is connected with an output end of an outward pull rod of the diverter, and the other end of the rocker arm mechanism is connected with the horizontal load actuator. The test bench also comprises a temperature control device capable of simulating running environment at different temperatures, namely a test environment box capable of accommodating the diverter fixed work bench. The diverter fatigue test bench not only can simulate the horizontal load of the output end, but also can simulate the vertical impact load on the output end due to bumpy road surface and running environment at different temperatures.

Description

technical field [0001] The invention relates to a test bench for steering gear fatigue test, in particular to a fatigue test bench capable of simulating actual driving conditions and different temperature environments. Background technique [0002] At present, the common steering gear high and low temperature fatigue test device is composed of a steering gear fixed workbench, an input end drive device, and an output end load simulation device. During the test, the steering gear is fixed on the workbench, the input shaft is driven at a rated speed, the output end is loaded with a certain horizontal load as required, and the fatigue endurance test is carried out for the rated number of cycles. However, this kind of test device can only simulate the horizontal load of the output end, that is, the friction force of the ground on the tire when turning, and cannot simulate the vertical impact load on the output end due to road bumps during actual driving, and the driving under dif...

AI Technical Summary

Problems solved by technology

However, this kind of test device can only simulate the horizontal load at the output end, that is, the friction force of the ground on the tire when turning, but cannot simulate the vertical impact load on the output end caused by road bumps during actual driving, and the driving at different temperatures. The environment is simulated, so it is impossible to achieve an excellent simulation effect, which is quite different from the actual working condition of the steering gear

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