Disk brake for monitoring brake positive pressure

A disc brake and positive pressure technology, applied in the direction of brake type, axial brake, hoisting device, etc., can solve the problems of large outer diameter of the small ring of the sensor, small radial size of the middle ring, and inconspicuous radial strain , to achieve wide practicability, improve reliability, and simple structure

Inactive Publication Date: 2009-03-18
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 insta

Method used

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  • Disk brake for monitoring brake positive pressure
  • Disk brake for monitoring brake positive pressure
  • Disk brake for monitoring brake positive pressure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment one, figure 1 As shown, it consists of a brake disc 1, a brake shoe assembly 2 connected to the brake disc 1, a disc spring 3 arranged in the brake shoe assembly 2, and a hydraulic cylinder 4 supporting the movement of the brake shoe assembly 2. The diameter of the installation sealing ring on the hole is d, and the disc spring seat sensor 5 is arranged between the lining plate of the brake shoe assembly 2 and the disc spring 3 . The base of the disc spring seat sensor 5 is a ring strain beam 5-1 varying in thickness, such as figure 2 shown. Divided into three rings according to the thickness and stress, the small ring a is supported on the small diameter of the disc spring 3, and bears the positive braking pressure P generated by the disc spring; the large ring c is supported on the liner of the brake shoe assembly 2, and bears the liner four strain gauges 5-2 are pasted on the radial direction of the suspended intermediate ring b, and the intermediate ri...

Embodiment 2

[0013] Embodiment two, image 3 As shown, the same part as the embodiment is omitted. The top of the disc spring 3 is equipped with a disc spring seat sensor 7 in contact with its small diameter, and the base of the disc spring seat sensor 7 is a ring strain beam 7-1 that varies in thickness. Figure 4 As shown, it is divided into three rings according to the thickness and force. The small ring a is supported on the small diameter of the disc spring 3, and bears the braking positive pressure P generated by the disc spring; the large ring c is supported on the hydraulic cylinder 4, avoiding the hydraulic pressure. The position hole where the diameter of the sealing ring on the cylinder is d is subjected to the support reaction force P' of the hydraulic cylinder 4; four strain gauges 7-2 are attached to the radial direction of the middle ring b, and the suspended middle ring b is under the normal pressure P The strain is generated under the action of the support reaction force ...

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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...

Claims

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Application Information

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IPC IPC(8): F16D55/22F16D66/00B66D5/28B66D5/14
Inventor 徐桂云张晓光李国庆马庆林朱家洲
Owner CHINA UNIV OF MINING & TECH
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