Offline test bench and method of automobile transmission

Abstract

The invention discloses an offline test bench and method of an automobile transmission. According to the bench, the front side of a rack base is provided with a bearing and a flywheel supporting seat; a motor base is arranged at one side of the rack base; a motor is arranged on the motor base; and four support adjusting rods and three stop blocks are arranged on the top surface of the rack base. The method is characterized in that the transmission is arranged on the top surface of the rack base of the bench; a motor drives the transmission; the transmission is connected with a sensor and a required gas circuit according to an on-line state, and meanwhile, connected with a shifting handle, a vehicle control module, an engine control module and a gear control module; a simulation drive instruction is given by adopting the shifting handle; the gear control module enables the actual working state of the transmission to be compared with the built-in normal value thereof, and when the result surpasses the allowable normal value range, a fault alarm is given; and the vehicle control module executes the detection process and controls the operation of the transmission, and detection of the transmission is carried out. The offline test bench and method facilitate offline test of the transmission, improve detection efficiency, reduce detection cost and ensure normal operation of the vehicle.

Description

technical field [0001] The invention relates to an off-line test stand and method of an automobile gearbox. Background technique [0002] Automobile gearbox is one of the main components of automobile transmission system, which is used for the conversion of mechanical power. In the metallurgical industry, the vehicles used for the transportation of raw materials such as coal and ore powder for ironmaking have the characteristics of short transportation distances, and the vehicles are often in the working state of frequent starting, shifting and braking, resulting in serious wear and tear of the gearbox and a high failure rate. In the dismantling and overhauling process of the gearbox, due to the lack of effective detection means, it is impossible to identify whether the repaired gearbox is intact or normal. Usually, only the method of on-vehicle verification can be used to test whether the repaired gearbox is normal or not. However, it often happens that after the repaired ...

AI Technical Summary

Problems solved by technology

In the metallurgical industry, the vehicles used for the transportation of raw materials such as coal and ore powder for ironmaking have the characteristics of short transportation distances, and the vehicles are often in the working state of frequent starting, shifting and braking, which leads to serious wear and tear on the gearbox and high failure rate

In the process of dismantling and overhauling the gearbox, due to the lack of effective detection methods, it is impossible to identify whether the repaired gearbox is in good condition. Usually, only the method of on-board verification can be used to test whether the repaired gearbox is normal or not.

However, it often happens that after the repaired gearbox is installed in the vehicle, it is found that the gearbox cannot work normally and there are various problems. As a last resort, the gearbox can only be disassembled again and disassembled and repaired again to determine the location and cause of the failure. , this process is sometimes even repeated 3 to 4 times, which seriously reduces the gearbox maintenance efficiency, increases the maintenance cost, causes unnecessary waste, and affects the normal operation of the vehicle

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