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The simple diagnosis of 145 heavy truck gear fault can be made by vibration level diagnosis, which is a diagnostic method that uses the vibration intensity of 145 heavy truck gear to determine whether the gear is in normal working condition.

A. Absolute value determination method

The amplitude value measured at the same measuring point of 145 heavy truck gear is directly used as an index to evaluate the running state. The absolute value determination method is used to identify gear state, and the corresponding criteria must be formulated to make different vibration intensities correspond. Different working conditions.

B. Relative value judgment method

Make full use of the statistical data of field measurement and formulate appropriate relative criteria, which is called relative value determination method. Relative to the requirements of the judgment standard, the amplitude measured at the same part of the 145 heavy truck gear box at different times is compared with the amplitude in the normal state, when the measured value and the normal value reach a certain degree, it is determined to be a certain state. For example, when the relative value criterion stipulates that the actual value reaches 2 times the normal value, it should attract attention, and when it reaches 4 times the danger.

In practical application, using two methods to diagnose 145 heavy truck gear at the same time for reference, can avoid greater risks.