Disk brake for monitoring brake positive pressure

Abstract

The invention discloses a disc brake for monitoring positive brake pressure, which comprises a brake disc, a brake shoe, a lining board, a disc spring, a hydraulic cylinder, a connecting screw, and a piston, wherein the bottom of the disc spring is provided with disc spring seat sensors which contact the small diameter of the disc spring, and the front part of the disc spring is provided with a disc spring seat sensor retaining ring; or contact positions of disc spring strips are adjusted when the disc spring strips of the disc spring are stacked, and the front part of the disc spring is provided with the disc spring seat sensors which contact the small diameter of the disc spring. The bottom or the front part of the disc spring is provided with the disc spring seat sensors in different directions by utilizing the limited space for placing the disc spring, installation dimensions of the disc spring seat sensors are the same as those of the prior disc spring seat of the prior brake, the disc spring seat sensors can be replaced on the spot, and the aim of directly monitoring the positive brake pressure can be achieved without changing prior performance parameters of the prior brake and structural dimensions of other parts, thereby greatly improving the reliability of the disc brake of a hoisting machine. The disc brake has the advantages of simple structure, convenient installation and maintenance, high measuring accuracy, and broad applicability.

Description

technical field [0001] The invention relates to a disc brake, in particular to a disc brake which monitors the braking positive pressure. Background technique [0002] The disc brake of the mine hoist is braked by positive pressure generated by the butterfly spring, and the brake is released by hydraulic pressure. The braking performance of the brake determines the safety performance of the hoist. If the brake cannot be opened and the hoist cannot run, it is not a safety accident. If the hoist is running, it must be braked but cannot be braked due to the failure of the disc spring fatigue or fracture, which will cause A major safety accident involving plane crashes and fatalities. On-line direct monitoring of the positive pressure of the brake can judge the fatigue and fracture of the disc spring to ensure the integrity of the disc spring. The "Coal Safety Regulations" stipulates that when the hoist brake brakes, the total braking torque must be greater than 3 times the ma...

AI Technical Summary

Problems solved by technology

Patent No. ZL200720037141.6 discloses a "disc brake braking performance detection device". Although the device is equipped with a positive pressure sensor, the large ring of the sensor is supported on the large diameter of the disc spring and the small ring is supported on the On the hydraulic cylinder, and because the hydraulic cylinder has a position hole for installing the sealing ring, the outer diameter of the small sensor ring is large, resulting in a small radial dimension of the suspended intermediate ring that bears strain, and low measurement accuracy

In other words, the smaller the radial dimension of the intermediate ring with the same thickness, the less obvious the radial strain and the lower the measurement accuracy

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