A drive axle wheel differential lock impact durability test bench and bench test method

Abstract

The invention relates to an impact endurance test bench and bench test method for differential locks between wheels of a drive axle, comprising the drive motor and the clutch connection of the drive motor; The inertial disc is sleeved on the inertial disc bracket, the axial positioning device is sleeved on the inertial disc shaft against the inertial disc in the direction of the front bearing seat, the pressure plate for driving the motor to disengage the clutch is fixed on the inertial disc shaft, The inertial disc set is sleeved on the inertial disc shaft and connected by splines; the test clutch is fixedly connected to the inertial disc shaft, and the support unit is fixedly connected to the base; the input end of the torque measurement system is located at the input end of the drive axle, and the angle measurement system is located at the drive axle. The axle input end, the output end of the drive axle assembly are connected with the wheel hub tooling, the wheel hub tooling is connected with the wheel side drive shaft, the wheel side drive shaft torque sensor is connected, and the torque sensor is connected with the magnetic powder brake. It has the advantages of stable and controllable test conditions, low test cost and short test cycle.

Description

technical field [0001] The invention belongs to the field of automobile bench tests, in particular to an impact durability test bench and a bench test method for differential locks between wheels of an automobile drive axle. [0002] technical background [0003] The driver usually chooses to use the inter-wheel differential lock to get out of trouble on roads with large differences in tire adhesion conditions on both sides of the vehicle. At this time, the vehicle is in a low gear. After the inter-wheel differential lock is locked, the clutch should be engaged slowly in theory, but the driver tends to increase the accelerator to increase the engine speed and engage the clutch quickly, resulting in misuse of the vehicle drive train. The inter-wheel differential lock assembly produces a lot of shock torque. Affected by driving habits and vehicle operating conditions, when the inter-wheel differential lock is working, there is a situation that the movable gear sleeve and the f...

AI Technical Summary

Problems solved by technology

[0004] At present, the whole vehicle test is the only way to carry out the durability test of the inter-wheel differential lock. However, there are unfavorable factors such as long vehicle preparation time, poor consistency of test conditions, long test cycle and high cost, so it is not suitable for large-scale promotion and application. It is necessary to find a new method. test method

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