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Improved structure of low-noise drum type brake

A drum brake, low-noise technology, applied in the direction of brake parts, etc., can solve the problems of large brake operating noise, increased brake operating noise, increased processing costs and installation difficulties, etc., to achieve low working noise and easy processing and manufacturing Effect

Inactive Publication Date: 2012-08-08
GUANGDONG HEPU POWER TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to manufacturing and assembly reasons, the brake shoe 9, the pin shaft 10 and the brake arm 1 are clearance fit, and the following problems will occur when the brake runs for a long time: 1. When the brake is working, the brake arm 1 and the pin shaft 10 impact will increase the operating noise of the brake; 2, when the brake is working, the impact of the brake shoe 9 and the pin shaft 10 will increase the operating noise of the brake; The gap between the moving brake shoes 9 will become larger due to friction, so that the brake will run noisier
In view of the above problems, by reducing the gap between the brake arm 1, the pin shaft 10, and the brake shoe 9, the working noise of the brake can be improved, but the processing cost and installation difficulty will be increased

Method used

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  • Improved structure of low-noise drum type brake
  • Improved structure of low-noise drum type brake
  • Improved structure of low-noise drum type brake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: as figure 1 , 2 , Shown in 3, a kind of low-noise drum brake of the present invention is as figure 2 As shown, it includes a magnet 2 with a brake release handle 3, a base 4 connecting the magnet 2 and the base, a brake arm 1 connected to the left and right working ends of the magnet 2 through a guide screw 6 and a brake spring 7, The micro switch 5 arranged between the magnet 2 and the brake arm 1, the brake shoe 9 connected to the inner side of the brake arm 1 through the pin shaft 10, and the direct brake brake connected to the brake arm 1 The adjustment bolt 11 on the outside of one of the swing ends of the shoe 9, the spring 8 arranged between the outside of the other swing end of the brake shoe 9 and the brake arm 1, the special feature of the spring 8 is that the spring 8 is located at the brake arm 1. The end is sleeved with a cylindrical shock absorber 12 , and the brake arm 1 is processed with a counterbore 14 corresponding to the cylindrical ...

Embodiment 2

[0017] Embodiment 2: In this embodiment, on the basis of Embodiment 1, the outer end of one of the swing ends of the adjustment bolt 11 directly reaching the brake shoe 9 is sleeved with a shock absorber 13, and the outer end of the shock absorber 13 leans against the The outer surface of the brake shoe 9.

Embodiment 3

[0018] Embodiment 3: This embodiment is based on Embodiment 2. The end of the spring 8 located at the brake shoe 9 is sleeved with a brake shoe shock absorber 15, and the brake shoe shock absorber 15 leans against the brake brake shoe 9 on the outer side.

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PUM

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Abstract

The invention discloses an improved structure of a low-noise drum type brake. The improved structure comprises a magnetic device, brake arms, brake shoes, adjusting bolts and springs, wherein the brake arms are connected to the left work end and the right work end of the magnetic device through guiding screws and brake springs; the brake shoes are in swinging connection with the inner sides of the brake arms through pin rolls; each adjusting bolt penetrates through and is connected onto each brake arm and is directly communicated to the outer side of one swing end of each brake shoe; and one spring is arranged between the outer side of another swing end of each brake shoe and each brake arm. The improved structure is characterized in that a cylindrical damping cushion is sleeved at the end socket of each spring, which is positioned at each brake arm; a counter bore is machined at the part of each brake arm, which corresponds to the cylindrical damping cushion; and the cylindrical damping cushion is embedded into the counter bore. Compared with the prior art, the improved structure disclosed by the invention has the advantages of low work noise and easy processing and manufacturing.

Description

technical field [0001] The invention designs a low-noise drum brake. Background technique [0002] Existing drum brake structure such as figure 1 As shown, the brake shoe 9 is installed on the brake arm 1 through the pin shaft 10, there is a spring 8 between the brake shoe 9 and the brake arm 1, and the brake shoe 9 and the brake wheel are fitted The area is adjusted by rotating the adjusting bolt 11, and at the same time, the spring 8 cooperates with the adjusting bolt 11 to adjust the bonding area between the brake shoe 9 and the brake wheel. Due to manufacturing and assembly reasons, the brake shoe 9, the pin shaft 10 and the brake arm 1 are clearance fit, and the following problems will occur when the brake runs for a long time: 1. When the brake is working, the brake arm 1 and the pin shaft 10 impact will increase the operating noise of the brake; 2, when the brake is working, the impact of the brake shoe 9 and the pin shaft 10 will increase the operating noise of the...

Claims

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Application Information

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IPC IPC(8): F16D65/06
Inventor 梁昌勇蔡小亮
Owner GUANGDONG HEPU POWER TECH