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Brake pad for train

A technology for brake pads and trains, applied in the direction of brake parts, friction linings, mechanical equipment, etc., can solve the problems of high braking pressure on the inner edge of the brake pad, slow heat dissipation, and wear on the inner edge of the brake pad, and achieve the guarantee Rapid dissipation, reduced heat build-up, and reduced wear

Pending Publication Date: 2019-02-05
BEIJING RAILWAY STAR FORTUNE HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When braking, the brake pressure on the inner edge of the brake pad is high, the heat is generated more, the heat dissipation is slow, and the temperature of the friction material is high, resulting in serious wear on the inner edge of the brake pad

Method used

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  • Brake pad for train
  • Brake pad for train
  • Brake pad for train

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specific Embodiment

[0034] Such as Figure 1a , Figure 1b As shown, it mainly includes: dovetail general-purpose steel back 11 , N friction particles 12 , N disc springs 13 and N disc springs 14 .

[0035] The general-purpose steel back of the dovetail is an irregular pentagonal plate structure with an inverted trapezoidal dovetail on the back, which is an integrated metal machining part of the dovetail and the steel back; the middle part of the dovetail is hollowed out, and N butterfly-shaped retaining springs are provided groove; such as Figure 2a , Figure 2b As shown, there are N disc spring slots on the plate plane of the steel back, and a positioning socket 21 is opened in the center thereof, and the N positioning sockets are located at the center of the butterfly circlip groove.

[0036] Those skilled in the art can understand that, as Figure 1a , Figure 1b-Figure 2a , Figure 2b In the shown structure, N is set to 10 for convenience of representation, but in fact, the specific val...

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Abstract

The invention discloses a brake pad for a train. The brake pad for the train comprises a universal dovetail steel backing, wherein a plurality of disc spring grooves are formed in the front surface ofthe steel backing; disc snap spring grooves are formed in parts corresponding to the disc spring grooves, on the back surface of the steel backing; a location recessed hole is formed in the center ofeach disc spring groove; each location recessed hole is filled with a friction particle; a locking pin is arranged at the center of each friction particle; and each locking pin penetrates through a disc spring and then stretches into the corresponding location recessed hole, and then the disc spring is tightly clamped in an annular groove in the end part of the locking pin. Design optimization iscarried out on the shape of the steel backing of the brake pad and the distribution of the friction particles; the stress area of a fiction material for the inner edge of the brake pad and gaps amongthe friction particles on the inner edge of the brake pad are increased; rapid dissipation for heat is ensured; the heat accumulation of the brake pad is reduced; and the wear of the inner edge of the brake pad is reduced.

Description

technical field [0001] The invention relates to a disc brake technology, in particular to a brake pad for trains. Background technique [0002] At present, the brake pads used for trains are prone to eccentric wear during the braking process, especially the inner edge of the brake pads is severely worn. When the inner edge life of the brake pads reaches the limit, the wear of the outer edge distance is still more than 3mm. The service life of the brake pads is reduced, resulting in serious waste. The main reason lies in two aspects: [0003] First, when the brake caliper applies thrust to the brake pad, the thrust per unit area of ​​the inner edge of the brake pad is large; [0004] Second, in order to ensure the same braking energy per unit area with different friction radii in the design process of the brake pads, the difference in heat dissipation conditions between the inner and outer edges of the brake pads is ignored. When braking, the brake pressure on the inner ed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/00F16D65/04
CPCF16D65/04F16D69/00
Inventor 房冲王林波谢代义陈晓伟邹怀森
Owner BEIJING RAILWAY STAR FORTUNE HIGH TECH