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Floating type train brake pad capable of replacing friction block

A friction block, floating technology, applied in the direction of friction linings, brake types, brake components, etc., can solve problems such as inability to obtain maximum braking pressure, unbalanced braking pressure, and large effective friction area.

Inactive Publication Date: 2012-02-22
BEIJING TIANYISHANGJIA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, any brake pad with a fixed friction block structure cannot obtain the maximum effective friction area due to the uneven braking pressure and the vibration of the brake disc generated during braking during braking.

Method used

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  • Floating type train brake pad capable of replacing friction block
  • Floating type train brake pad capable of replacing friction block
  • Floating type train brake pad capable of replacing friction block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The structure example assembly process of the present invention is as follows:

[0020] attached by figure 1 The back plate (1) of the brake pad is given. There are multiple single-arc quadrilateral friction blocks (3) connected to the positioning holes (103) on the back plate, and the positive plate of the back plate has a plurality of support plate spot-faced holes (101) , there are a plurality of spring clips spot facing holes (102) on the back side of the backboard. The fixed support pawl (201) of the elastic support piece (2) is placed in the spot-faced hole (101) of the support piece on the front of the backboard. The friction material (301) of the friction block is made of copper-based powder metallurgy material through vacuum pressure sintering. At the same time of sintering, the friction material and the friction block liner (302) together with the guide connecting shaft (305) should be sintered glued together. Pass the guide connection shaft (305) of the fr...

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Abstract

The invention discloses a brake pad which is applied to a disc type brake system of a high-speed train. A friction block constituted by the brake pad can be flexibly replaced. The brake pad comprises a brake pad back plate which is made of a metal material, an elastic supporting sheet, the friction block and a circular spring clamp, wherein the elastic supporting sheet is provided with a spherical supporting surface and a central guide hole; the lower part of the friction block is provided with a spherical supporting surface and a positioning and connecting shaft which is provided with a clamping groove; the connecting shaft can penetrate through the central guide hole and a back plate positioning hole of the elastic supporting sheet and is locked on the back plate by the circular spring clamp to realize floating connection; the friction block is provided with a polygonal block with a blind hole in the center; and every three friction blocks form an interlocking group, so that the rotation of the friction block during working of the brake pad is prevented. The brake pad can achieve the maximum contact friction area of the brake pad and a brake disc in a train braking process, so that the braking process is stable and the brake pad has the functions of damping, vibration reduction, noise reduction, heat dissipation and the like. The friction block is easy to replace, so that the train operation cost is lowered.

Description

technical field [0001] The invention relates to a brake pad used in a disc brake system of a high-speed train. The brake pressure acts on the back plate of the brake pad, so that the friction working surface of the friction block on the brake pad is in close and stable contact with the brake disc to implement braking. There are multiple friction blocks on the brake pads, which form a floating structure through elastic support plates, and are locked by circular spring clips. Background technique [0002] In the train disc brake system, the brake pad is one of the key components, which directly rubs against the brake disc to absorb kinetic energy to make the train stop. Therefore, it is necessary to ensure the maximum effective friction area between the brake pad and the brake disc. However, any brake pad with a fixed friction block structure cannot obtain the maximum effective friction area due to the uneven braking pressure and the vibration of the brake disc generated dur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/04F16D69/00F16D65/847
Inventor 吴佩芳
Owner BEIJING TIANYISHANGJIA NEW MATERIAL
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