Drag grinding test bench for locomotive main axle detection

Abstract

The present invention provides a drag grinding test bench for locomotive main axle detection. The drag grinding test bench comprises a horizontally-arranged base, a main axle mounting stage and variable frequency motors; a main axle, wheel axles and gear boxes are provided with temperature sensors respectively; the temperature sensors are connected with a temperature display screen; the main axle,the wheel axles and the gear boxes are provided with noise decibel meters respectively; and the noise decibel meters are connected with a noise display screen. The drag grinding test bench of the present invention can be used for simultaneously detecting the main axle, the wheel axles and the gear boxes, is low in cost, good in detection effect, can measure temperatures and noises, perform detailed detection and easily judge fault points. According to the drag grinding test bench, the operating conditions of the variable frequency motors are controlled through a motor synchronous controller,so that the rotation speeds of the variable frequency motors are synchronous and can be adjusted, and therefore, temperatures and noises under different operating conditions can be detected.

Description

technical field [0001] The invention relates to a dragging test bench, in particular to a dragging test bench for locomotive main shaft testing, and belongs to the technical field of locomotive testing equipment. Background technique [0002] When the locomotive is running at high speed, the temperature of the main shaft is too high, which often causes damage to the locomotive, malfunction of the locomotive, or even a major locomotive accident in severe cases. Therefore, in order to avoid locomotive accidents, a large number of railway workers manually inspect the state of the main shaft of the train. However, with the continuous update of locomotive technology, the traditional inspection office requires a lot of manpower and material resources, which increases the labor cost accordingly. [0003] In order to reduce labor costs and improve the quality of testing, the existing technology generally uses a dragging test bench to test locomotives, but the dragging test bench can...

AI Technical Summary

Problems solved by technology

[0002] When the locomotive is running at high speed, the temperature of the main shaft is often too high, which will cause damage to the locomotive, malfunction of the locomotive, and even cause major locomotive accidents in severe cases.

Therefore, in order to avoid locomotive accidents, a large number of railway workers manually inspect the state of the main shaft of the train. However, with the continuous updating of locomotive technology, the traditional inspection office requires a lot of manpower and material resources, which increases the labor cost accordingly.

[0003] In order to reduce labor costs and improve the quality of testing, the existing technology generally uses a dragging test bench to test locomotives, but the dragging test bench can only be used to detect the operating conditions of locomotive wheel axles and gearboxes, and cannot detect the main shaft. The main shaft is an important component of the locomotive, and it is very necessary to detect the main shaft of the locomotive.

[0004] On the whole, the drag grinding test bench of the prior art mainly has the following defects: First, it can only detect the operating conditions of the locomotive wheel axle and the gearbox, but cannot detect the main shaft, which is an important component of the locomotive. The main shaft needs to be tested with other special equipment, and the cost is high; second, the temperature and noise of the main shaft, wheel shaft and gearbox are not measured separately, and the temperature and noise of the main shaft, wheel shaft and gearbox cannot be tested, and the judgment of the fault point is difficult; The third is that it can only detect the operating conditions of the wheel axle and gearbox in a fixed state, and cannot detect the temperature and noise of the main shaft, wheel axle and gearbox under different operating conditions

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