XIAN YOU
NEWS CENTER
29
2022
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12
Fault Diagnosis of Automobile Transmission Gears
Author：
Automatic transmission is an important power assembly of automobile. Once a fault occurs, it will have an immeasurable impact on people's travel. Therefore, it is necessary to master the fault diagnosis and maintenance knowledge of automatic transmission. According to the maintenance characteristics of automatic transmission, the process of automatic transmission fault diagnosis and the method of automatic transmission fault diagnosis are put forward through experiments, which play a great role in improving the efficiency of automobile maintenance.
The automatic transmission gear is a closed device in the vehicle. As long as there is a fault, it will increase the difficulty of maintenance. When the fault area is not confirmed, it is not allowed to disassemble and repair at will. Troubleshooting must be performed quickly and correctly. Relevant maintenance personnel must fully understand the symptoms of various vehicle faults, carefully collect and analyze the user's information, so as to better troubleshoot.
The most important and common failure form of automobile transmission gear is wear failure; If the tooth surface of the vehicle is worn during operation, these worn residues can be found in the lubricating oil; For the analysis and diagnosis methods of wear residues, the rapid acquisition of machine fault related information is mainly based on the determination of the content of wear residues in lubricating oil.
The operating conditions and environment of vehicles are very special; The gear, shaft and bearing in the gearbox often fail due to frequent gear shifting. According to relevant statistics, about 60% of all automobile transmission failures are caused by gear failures. The faults of transmission gears mainly include excessive wear, severe pitting and peeling of the tooth surface, and tooth breakage caused by excessive bending. Under good working conditions, tooth fracture caused by excessive bending is relatively rare, but as long as this phenomenon occurs, it can be easily judged; Therefore, with the continuous development of automotive technology, fault diagnosis of transmission, especially gear fault diagnosis becomes more and more important.
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