Disc brake and monitoring method for real-time monitoring of disc spring force

Abstract

A disc spring sensor and method for real-time monitoring of disc spring force, comprising a brake disc, a brake shoe assembly, a disc spring, a disc spring seat, a disc spring snap ring and a hydraulic cylinder, and a disc spring is arranged between the disc spring seat and the disc spring The disc spring sensor has the same dimensions as the disc spring, and has the dual functions of disc spring force and sensor monitoring. There are annular grooves on the end faces of the disc spring sensor, and multiple strain reliefs arranged in pairs in the groove The strain gauges arranged in pairs are opposite to each other at an angle α and respectively cling to the inner and outer diameters of the annular groove, and the radial direction of the disc spring sensor is provided with a cable hole for leading out multiple strain gauge wires. Utilizing the limited space of the disc brake structure of the existing mine hoist, without changing the original performance parameters of the existing brake and the structural dimensions of other parts, the disc spring force can be directly monitored by installing the disc spring sensor, thereby monitoring the disc spring fatigue. The reliability of the hoist disc brake is greatly improved. The utility model has the advantages of simple structure, convenient installation and maintenance, and high measurement accuracy.

Description

technical field [0001] The invention relates to a sensor, in particular to a disc spring sensor and a method for monitoring the force of a disc spring suitable for on-line monitoring of disc spring fatigue. Background technique [0002] The safe and reliable operation of the mine hoisting system will have positive significance for the country's economic development and people's living standards. The causes of coal mine safety accidents include many factors such as people, hoists, and the environment, among which insufficient positive pressure of disc brakes is a typical reason. In coal mine safety production, insufficient positive pressure of disc brakes is one of the main causes of lifting and transportation problems. [0003] The disc brake is an important braking unit on the hoist equipment, which is very important for the braking action of the hoist. Disc brakes are produced by butterfly springs and released by hydraulic pressure. When the hydraulic oil enters the hyd...

AI Technical Summary

Problems solved by technology

In the current technology, the braking positive pressure is monitored to monitor the braking safety, but there is a large error between the positive pressure monitoring of the disc brake and the actual braking positive pressure of the disc brake, and it is impossible to accurately monitor the positive braking pressure.

Images