Steel backing deviation prevention device and method for composite brake shoe pressing process
A pressing process, a technology of synthesizing brake shoes, applied in the direction of applications, household components, household appliances, etc., can solve problems such as steel back deviation
Active Publication Date: 2021-02-19
CHINA RAILWAY LONGCHANG MATERIALS
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- Description
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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 steel back deflection prevention device and method for the composite brake shoe pressing process, aiming to solve the problem of steel back deviation during the pressing process of brake shoes with tread slopes question
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[0021] A steel back anti-deflection device used in the pressing process of synthetic brake shoes, such as Figure 1 to Figure 6 As shown, it includes a baffle plate 1, a pressure shoe pin body 2, a steel back 3, a lower die 4, and an upper die 5. in:
[0022] Such as figure 1 As shown, the thickness of the baffle plate is 2-3mm, and there are two holes in the middle of the baffle plate, the diameter of the holes is 4-8mm, through which the baffle plate and the pressing shoe pin body are welded.
[0023] Such as figure 2 As shown, the baffle and the pressure shoe pin are welded as a whole at the round hole, and one side of the rear baffle is welded (i.e. figure 2 The edge 11) is flush with the upper edge of the pressure tile pin, and the other three sides (ie figure 2 The edges 12, 13 and 14) all exceed the width of the pressure tile pin, so that after the pressure tile pin 2 is inserted into the tile nostril of the steel back 3, the three sides are flush with the edge o...
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Abstract
The device discloses a steel backing deviation prevention device and method for the composite brake shoe pressing process. The steel backing deviation prevention device for the composite brake shoe pressing process comprises a baffle, a shoe pressing pin, the steel backing, a lower die and an upper die, wherein the thickness of the baffle is 2-3 mm, the baffle and the shoe pressing pin are weldedinto a whole, one side of the baffle is aligned with the upper edge of the shoe pressing pin after welding, and the other three edges of the baffle exceed the shoe pressing pin for a certain width, sothat the three edges are aligned with the edge of a shoe nose of the steel backing after the shoe pressing pin is inserted into a shoe nose hole of the steel backing. Compared with the prior art, thesteel backing deviation prevention device for the composite brake shoe pressing process has the advantages that an existing shoe pressing pin is improved, the baffle is welded to one end of the shoepressing pin, and therefore, the situation that the steel backing deviates in the pressing process due to the inclination of the upper die can be effectively prevented through the baffle; and the brake shoe steel backing pressed through the shoe pressing pin is located in the middle of a friction body, so that appearance defects of products can be eliminated.
Description
technical field [0001] The invention relates to a steel back anti-deviation device and method used in the pressing process of synthetic brake shoes. Background technique [0002] Synthetic brake shoes are mainly prepared from steel backs and synthetic friction materials through pressing, sintering and other processes, and are important components of train braking. [0003] When the train brakes, under the action of the brake pressure, the braking surface of the brake shoe contacts the surface of the wheel to generate friction and convert kinetic energy into heat energy. Due to the slope of some wheel surfaces, in order to make the braking surface of the brake shoe fit better with the wheel surface and increase the friction area, in the process of brake shoe design, the corresponding brake shoe surface should have a corresponding slope. The mold must also be a surface of the same slope. Due to the inclination of the upper die surface, the pressure on the steel back will be ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B29C43/18B29C43/36B29C33/12B29L31/16
CPCB29C43/18B29C43/36B29C2043/3602B29L2031/16
Inventor 杨柳刘正华徐腈蔓苗军董文欢宋川
Owner CHINA RAILWAY LONGCHANG MATERIALS