High-speed high-strength brake pad

A high-strength, brake pad technology, applied in the direction of friction linings, mechanical equipment, brake parts, etc., can solve the problems of steel back deformation, large safety hazards, virtual welding, etc., to increase strength, eliminate welding deformation, and avoid easy The effect of dropping edges and corners

Inactive Publication Date: 2013-04-24
贵州新安航空机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The local high temperature generated during the welding process can easily lead to deformation of the steel back. The deformation of the steel back will cause the two brake blocks to not be on the same plane. Although it can be eliminated by subsequent machining, the deformation of the dovetail plate caused by welding cannot be eliminated.
After the high-speed brake pad is installed on the braking device of the high-speed train, the brake block cannot be fully contacted with the brake disc, and the braking performance is unstable and the efficiency is low. Under high speed, high braking energy and high pressure, this The phenomenon is more serious and the safety hazard is huge
At the same time, there will inevitably be pores, cracks, and virtual welds in the welds during welding, which also pose potential safety hazards

Method used

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  • High-speed high-strength brake pad
  • High-speed high-strength brake pad
  • High-speed high-strength brake pad

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing, the present invention will be further described, as Figure 1~Figure 4 As shown, the high-speed high-strength brake pad mainly includes a steel back 1, a brake block 2 and a dovetail plate 7, the front of the steel back 1 is riveted with a brake block 2, the back of the steel back 1 is riveted with a connecting plate 4, and the connecting plate 4 is provided with Dovetail plate 7; the weight percentage of the material formula used in the brake block 2 is: copper powder 11, iron powder 51, tin powder 1, graphite 5, ferroboron 2, molybdenum disulfide 4, ferromanganese 3, aluminum oxide 5. Silicon carbide 13, silicon dioxide 5, the above-mentioned material formula is cold-pressed and sintered on the skeleton to make the brake block 2 according to the existing technology. figure 1 The dotted line in is the outline of the outer edge of the dovetail plate 7, and the number of brake blocks 2 depends on the area of ​​the steel bac...

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Abstract

The invention provides a high-speed high-strength brake pad. A connection plate is additionally arranged behind a steel back, a forked tail plate is arranged on the connection plate, and the connection plate is riveted with the steel back. Welding deformation of the steel back and the forked tail plate is eliminated, the strength of the steel back is reinforced, the steel back cannot deform or shade under effect of braking thrust, and an elastic gasket is installed between the steel back and a framework of the brake pad, so that the brake pad can be firmly adhered with a brake plate for friction braking. By means of the structure, under pushing of the brake pressure, the brake pad can be adhered onto the brake plate on the same plane for braking, and eccentric abrasion and various problems that edges and angles of the brake pad can fall easily, the brake efficiency is low, the brake distance is long and the like caused by the eccentric abrasion are avoided.

Description

technical field [0001] The invention relates to a high-speed train brake device, in particular to a high-speed high-strength brake pad. Background technique [0002] High-speed brake pads are a key component in the braking system of high-speed trains. They are mainly composed of multiple brake blocks, steel backs and dovetail plates. During the process, multiple brake blocks of the high-speed brake pads rub against the brake disc of the high-speed train on the same plane to stop the train. However, in the high-speed brake pads widely used in the prior art, spot welding is used for the connection between the dovetail plate and the steel back, that is, several through holes are processed at the position where the bottom of the W-shaped dovetail plate is in contact with the steel back. Spot welds at the holes connect the dovetail plate and steel backing together. The local high temperature generated during the welding process can easily lead to deformation of the steel back. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/02F16D69/02
Inventor 徐英
Owner 贵州新安航空机械有限责任公司
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