Tribological performance monitoring and early-warning device and method of disc brake

Abstract

The invention discloses a tribological performance monitoring and early-warning device and a method of a disc brake. The method comprises the following steps: developing a tribological performance testing experiment through simulating the braking working condition of the disc brake to obtain a data sample; constructing a tribological performance intelligent predicting model based on the neural network technology by utilizing the data sample; and realizing the real-time monitoring of the tribological performance of the disc brake and the automatic early warning of an abnormal tribological state based on the predicting capability of the model by utilizing the monitoring and early-warning device. The device consists of a sensing detecting system, a data collecting system, a calculation processing system and a software system; the sensing detecting system detects braking working condition parameters of the disc brake in real time through a photoelectric encoder, a positive pressure sensor and a temperature-measuring thermocouple; the data collecting system collects, amplifies and converts detected signals; and the calculation processing system receives braking working condition data uploaded by the data collecting system, and then, calls a neural network predicting module, predicts and outputs the tribological performance parameters of the disc brake, and carries out real-time display and automatic early warning through a software system. The method and the device have high monitoring precision and a quick and accurate early-warning result.

Description

technical field [0001] The invention relates to a disc brake tribological performance monitoring and early warning device and method, belonging to the technical field of tribology and automatic detection, capable of real-time monitoring of the tribological performance of the disc brake during the braking process, and monitoring the abnormal tribological state Automatic warning. Background technique [0002] At present, the braking systems of mine hoists, automobiles, trains and other equipment mostly use disc brakes as braking devices. Disc brakes rely on the friction between the brake shoe (or brake pad) and the brake disc to convert the kinetic energy of the mechanical system into heat energy and consume it, so as to realize the braking deceleration or parking function. Therefore, the tribological performance of disc brakes during the braking process is directly related to the braking performance and reliability of these equipment, which has an important impact on product...

AI Technical Summary

Problems solved by technology

Most of the research reports on tribological performance prediction in other fields only predict a single tribological performance index of the output friction coefficient, which cannot objectively and comprehensively reflect the real tribological state on the contact interface of the brake friction pair

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