An online monitor for the wear condition of locomotive brake shoe and tire

Abstract

The invention discloses an online monitor of abrasion working conditions of a locomotive braking brake-shoe and a wheel rim. A working condition of a brake is detected through displacement sensors. Provided is a novel sensor for monitoring working conditions, namely braking or buffering of an inner unit brake and an electric locomotive unit brake. According to the novel sensor, an open-loop control for a locomotive braking device is changed into a closed-loop control and a locomotive operator can realize working conditions of each unit brake at any time through a computer when the locomotive runs or prepares to work. According to the online monitor of the abrasion working conditions of the locomotive braking brake-shoe and the wheel rim, locomotive operating accidents caused by relax separation, wheel tread separation or insufficient braking force of locomotive wheelsets due to faults of the unit brakes are prevented, and important significance is brought to guarantee of safe locomotive operation. According to the online monitor of the abrasion working conditions of the locomotive braking brake-shoe and the wheel rim, the two displacement sensors and an installation position are used for detecting various parameters and used for calculating the thickness of the brake-shoe, an abrasion degree of the wheel to a wheel tread and a buffering reaching degree of the brakes. Meanwhile, signals generated by mechanical changes of the sensors are converted into the thickness of the brake-shoe, the abrasion degree of the wheel tread and the buffering reaching degree of the brakes.

Description

technical field [0001] The invention belongs to the technical field of locomotive braking, and in particular relates to an on-line monitor for the wear condition of a locomotive brake shoe and a tire rim. Background technique [0002] Whether the train is running at high speed or with heavy load, braking is a very critical issue. At present, the braking device of ordinary trains in my country is mainly cast iron brake shoe with tread. In the online detection of locomotive operation, there is no detection of each working condition of the brake. [0003] Some people have developed a locomotive brake shoe tread braking condition monitor, which uses a new type of internal and electric locomotive unit brake working condition (braking or mitigation) monitoring sensor, which changes the locomotive braking device from open-loop control to closed-loop control. , and make the locomotive operator know the working condition of each unit brake at any time when the locomotive is running...

AI Technical Summary

Problems solved by technology

[0013] The second method can only monitor the action of the brake shoe, but cannot detect the braking force of the brake shoe. The output of the sensor is a switch signal. The installation position and method of the sensor and how to compensate for the discrepancy between the sensor and the wheel tread caused by the wear of the brake shoe The gap change cannot be eliminated. Since the signal collected by the sensor is the switch signal of whether the brake shoe and the wheel are in contact during braking, it can only qualitatively detect the state of the locomotive during braking.

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