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High-speed train brake pad with high connecting strength

An iron brake pad with high strength technology, which is applied in the direction of friction lining, gear transmission mechanism, brake type, etc., can solve the problem of metal back plate debonding of the friction body, and achieve improved reliability, improved thermal conductivity, and high connection strength Effect

Pending Publication Date: 2019-03-15
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention is designed to solve the problem that the friction body is easily debonded from the metal back plate in the service process of the high-speed rail brake pad in the prior art, and at the same time improve the thermal conductivity of the friction block

Method used

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  • High-speed train brake pad with high connecting strength
  • High-speed train brake pad with high connecting strength
  • High-speed train brake pad with high connecting strength

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 , figure 2 As shown, the high-connection-strength high-speed rail brake pad includes a steel back 1, a friction block 2, a triangular bracket 3, and a butterfly circlip 4.

[0032] Such as Figure 3 to Figure 5 As shown, the friction block 2 includes a metal back plate 21, a central pin 22, and a friction body 23. The friction body 23 has the same shape as the metal back plate 21, and there are wing plates 24 on both sides of the metal back plate 21 perpendicular to the friction direction. .In this embodiment, the metal back plate 21 has two shapes, the metal back plate 21 in the middle is a regular hexagon, and the edge of the metal back plate 21 near the edge of the steel back 1 is a regular hexagon and cut to match the edge of the steel back 1 consistent shape.

[0033] The wing plate 24 and the metal back plate 21 are integrally formed, and the wing plate 24 is formed by stamping or mechanical bending. The shape and size of the wing plate 24 sh...

Embodiment 2

[0046] Such as Figure 10 As shown, in this embodiment, on the basis of the structure of Embodiment 1, the friction body is replaced by one or more pairs of metal rods 5 or metal sheets that are not symmetrical to the center of the metal back plate 21, and the metal sheets or metal rods 5 and The metal back plate 21 is welded or connected in other ways, and plays the same role as the wing plate. The height of the metal rod 5 or the metal sheet should be less than the thickness of the remaining friction body (generally less than 5 mm) when the friction block is worn to a limited time.

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Abstract

The invention provides a high-speed train brake pad with high connecting strength, belonging to the technical field of disc braking devices of high-speed trains. The high-speed train brake pad with high connecting strength comprises a steel back, a friction block and a triangular bracket, and the friction block comprises a metal back plate and a friction body. The high-speed train brake pad with high connecting strength is characterized in that wing plates are arranged at the edges of the metal back plate, and the wing plates are used for clamping the friction body and contacting with the friction body to dissipate heat. The high-speed train brake pad with high connecting strength can greatly improve the bonding strength of the friction body and the metal back plate through the limiting function of the wing plates, prevent the friction body from being scraped off by force in the braking process, and improve the reliability of brake pads. Through the contact between the wing plates andfriction body, the thermal conductivity of the friction block can be improved, the probability of forming local hot spots can be reduced, and the service life of the brake pads can be prolonged.

Description

technical field [0001] The invention relates to a brake pad for high-speed trains with high connection strength and belongs to the technical field of disc brake devices for high-speed trains. Background technique [0002] Brake pads are the key parts and vulnerable parts of the braking system of high-speed trains. Brake pads are required to have high mechanical strength and good heat resistance in order to convert the huge kinetic energy generated by the train into heat energy. and thermal conductivity, stable friction performance, lower wear and reduced wear on wheels. [0003] In the prior art, the Chinese utility model patent, CN204610642, discloses a powder metallurgy brake pad for high-speed rail passenger cars. The powder metallurgy brake pad is mainly composed of four parts: a steel back, a friction block, a triangular bracket and a butterfly circlip. The friction block is composed of a metal back plate and a friction body, and the metal plate is composed of a center...

Claims

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Application Information

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IPC IPC(8): F16D65/092F16D69/04F16D65/847
CPCF16D65/092F16D65/847F16D69/0408F16D2250/0061
Inventor 燕青芝彭韬张肖璐
Owner UNIV OF SCI & TECH BEIJING