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Device and method for preventing deflection of steel backing in pressing process of composition brake shoe

A technology for synthesizing brake shoes and pressing process, which is applied to household appliances, other household appliances, household components, etc., can solve the problem of steel back offset during the pressing process of brake shoes, and achieve the effect of preventing steel back deflection and eliminating appearance defects.

Pending Publication Date: 2022-06-07
CHINA RAILWAY LONGCHANG MATERIALS
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the present invention proposes a device and method for preventing steel back deflection in the pressing process of synthetic brake shoes, aiming at solving the problem of steel back deflection in the pressing process of brake shoes with tread slopes

Method used

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  • Device and method for preventing deflection of steel backing in pressing process of composition brake shoe
  • Device and method for preventing deflection of steel backing in pressing process of composition brake shoe
  • Device and method for preventing deflection of steel backing in pressing process of composition brake shoe

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Embodiment Construction

[0029] A device for preventing the deflection of the steel back during the pressing of a synthetic brake shoe, such as Figure 1 to Figure 6 As shown, it includes an anti-rotation baffle 1, a synthetic brake shoe 2, a steel back 3, a lower pressure head 4 and an upper pressure head 5, etc., among which:

[0030] like figure 1 As shown, the anti-rotation baffle 1 extends 2-3mm from the center of the downward pressure head, the thickness of the extended part is 2 mm, and the upper side of the baffle is consistent with the radian of the downward pressure head.

[0031] like figure 2 and 3 As shown, the width of the steel back 3 is 69mm, and the width of the synthetic brake shoe 2 is 73mm.

[0032] like Figure 4 As shown, the anti-rotation baffle 1 is fixed on the lower pressing head 4 by cylindrical head screws, and two anti-rotation baffles 1 are installed in total.

[0033] Since the tread of the synthetic brake shoe 2 has a slope of 1:20, the corresponding surface slope...

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Abstract

The invention discloses a device and method for preventing deflection of a steel backing in the pressing process of a composition brake shoe, the device comprises an upper pressing head and a lower pressing head, an anti-rotation blocking piece is arranged on the lower pressing head, the anti-rotation blocking piece is provided with an extending part extending towards the center of the lower pressing head, and the radian of the upper side of the anti-rotation blocking piece is consistent with that of the lower pressing head. Compared with the prior art, the steel backing pressing device has the advantages that the two anti-deflection blocking pieces are installed on the lower pressing head, the steel backing is clamped between the two anti-deflection blocking pieces before pressing, deflection of the steel backing can be prevented, and the situation that the steel backing deflects in the pressing process due to the inclination of the upper pressing head can be effectively prevented; the brake shoe steel backing obtained by pressing the anti-deflection separation blade is located in the middle of a friction body, and appearance defects of products can be eliminated.

Description

technical field [0001] The invention relates to a device and method for preventing the deflection of a steel back during the pressing process of a synthetic brake shoe. Background technique [0002] The synthetic brake shoe is mainly prepared by pressing and sintering steel back and synthetic friction material, and is an important part of train braking. [0003] When the train brakes, the braking surface of the brake shoe contacts the surface of the wheel under the action of the braking pressure, which generates frictional force and converts kinetic energy into heat energy. Due to the slope of some wheel surfaces (such as 1:20), in order to make the braking surface of the brake shoe fit better with the wheel surface and increase the friction area, the corresponding surface should have a corresponding slope during the design of the brake shoe. For the above reasons, the upper head of the brake shoe pressing must also have the same slope surface. The upper pressure head with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C43/18B29C43/36B29L31/16
CPCB29C43/18B29C43/36B29L2031/16
Inventor 杨柳鲁超飞李雄卢小龙
Owner CHINA RAILWAY LONGCHANG MATERIALS
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