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Split-type brake disc

A brake disc, split technology, applied in the direction of brake disc, brake type, brake components, etc., can solve the problems of cumbersome installation and removal, affecting driving safety, brake disc cracks, etc.

Active Publication Date: 2014-02-19
CRRC CHANGZHOU TECH MARK IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the braking process, the temperature of the friction disc surface will rise sharply, and the brake disc will also expand due to heat, resulting in large thermal stress. The existing brake disc structure is usually an integral or two-piece split type. Expansion radially outwards cannot fully release the thermal stress, resulting in cracks in the brake disc and affecting driving safety; at the same time, traditional friction discs are fixedly connected to the disc hub through bolts and nuts, and are equipped with positioning pins Or the elastic pin transmits torque, and the installation and disassembly of this connection method are relatively cumbersome

Method used

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  • Split-type brake disc
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Examples

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Embodiment Construction

[0020] The present invention is described in further detail below in conjunction with the embodiment that accompanying drawing provides.

[0021] see figure 1 , 2 As shown in , 3 and 4, a split brake disc includes a disc hub 1, which is provided with a middle hole 1-1, and also has a friction block 2 and a mounting pin 4, and the friction block 2 includes two friction plates 2-4 and several heat dissipation ribs 2-1, the heat dissipation rib 2-1 is located between two friction plates 2-4, and the two friction plates 2-4 and several heat dissipation ribs 2-1 are integrated or fixedly connected, A heat dissipation gap S2 is formed between two adjacent heat dissipation ribs 2-1, and each friction plate 2-4 is provided with a mounting boss 2-4-1, and the mounting boss 2-4-1 is provided with a mounting hole 2 -4-2, the flange 1-2 of the disc hub 1 is also provided with a flange hole 1-2-1, and the mounting pin 4 passes through the mounting hole 2-4-2 and the flange hole 1-2-1, so...

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Abstract

The invention discloses a split-type brake disc. The split-type brake disc comprises a disc hub, friction blocks and installation pins. The disc hub is provided with a middle hole. The number of the friction blocks is an odd number larger than three; each friction block comprises two friction plates and a plurality of radiation ribs, wherein the radiation ribs are located between the two friction pieces, and the two friction plates and the radiation ribs of the friction block are integrally formed or fixedly connected. Flanges of the disc hub are located between the two friction plates of each friction block. Each friction plate is provided with an installation boss, and the installation bosses are provided with installation holes. The flanges of the disc hub are provided with flange holes. The installation pins penetrate through the installation holes in the installation bosses and the flanges holes in the flanges so that the friction blocks can be fixedly connected with the disc hub. The friction blocks are installed on the disc hub in an annularly-arrayed mode, and a gap exists between every two adjacent friction blocks. The split-type brake disc is good in thermal stress relief effect, reliable in installation and convenient to disassemble and assemble.

Description

technical field [0001] The invention relates to a brake device for trains, in particular to a brake disc for train brakes. Background technique [0002] The brake disc is an important part of the basic braking of the train. The brake disc is pressed against the friction surface of the brake disc to realize the train braking and ensure the safe and stable operation of the train. During the braking process, the temperature of the friction disc surface will rise sharply, and the brake disc will also expand due to heat, resulting in large thermal stress. The existing brake disc structure is usually an integral or two-piece split type. Expansion radially outwards cannot fully release the thermal stress, resulting in cracks in the brake disc and affecting driving safety; at the same time, traditional friction discs are fixedly connected to the disc hub through bolts and nuts, and are equipped with positioning pins Or the elastic pin transmits torque, and the installation and disa...

Claims

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Application Information

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IPC IPC(8): F16D65/12F16D65/847F16D69/04
Inventor 黄彪钱坤才杜利清侯传伦郭立宾金文伟
Owner CRRC CHANGZHOU TECH MARK IND CO LTD
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