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Automotive drum type braking device grinding and renovating method

A brake device and drum-type technology, applied in the direction of grinding devices, grinding machine tools, metal processing equipment, etc., can solve problems such as machine damage, chatter, traffic accidents, etc.

Inactive Publication Date: 2009-05-13
冷安福
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cause the wear between the brake drum and the brake pad, and the concentric circle formed between the brake drum and the brake pad before the wear is destroyed, so that the "biting" of the brake and the mechanical "chatter" phenomenon occur, and then cause Mechanical damage, damage or failure, and even cause traffic accidents

Method used

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  • Automotive drum type braking device grinding and renovating method
  • Automotive drum type braking device grinding and renovating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] 1. Build a pair of car brake fixtures that are exactly the same as the car brake device; the difference is that the brake pads 2 and the hub can rotate forward or reverse like the normal operation of the car; immediately take it off or clamp it, and clamp it.

[0016] 2. Round or coarse grinding process;

[0017] For brakes and brake drums (sand foundry parts) that have not undergone the rounding process, or for brake drums that have been damaged by use, the concentric circle formed by the inner circle and the outer circle of the brake friction pad will definitely be damaged. Such repairs require More processes:

[0018] The first process is relatively difficult or the amount of milling or rough grinding is relatively large, so that the blank of the brake drum can be obtained.

[0019] 3. Coarse, medium and fine grinding process;

[0020] The specific methods of coarse, medium and fine grinding processes are as follows;

[0021] The specific methods of coarse, medium...

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Abstract

The invention discloses a grinding and repairing method for a drum-type brake device of an automobile, the grinding and repairing method includes the steps as follows: A. the drum expanding and rough grinding working procedures; B. the drum expansion with the contents of milling and shaving; and C. the brake drum through the circle expanding working procedure, wherein, both the center thereof and the center formed by a friction brake sheet are concentric circles. The grinding and repairing method has the characteristics: A. the positive inversion grinding with three 46<#>, 36<#> and 30<#> carborundums is performed for 5 minutes respectively; B. the positive inversion grinding with fine river sand is performed for 5 minutes similarly again; and C. the brake assembly is assembled or can be utilized. In the entire three rough, moderate and fine grinding working procedures, the adjustment of the clamp of the tool device is particularly utilized, thereby ensuring the consistency between the center of the brake drum and the concentric circle formed by the friction brake sheet. In addition, the consistency of the clearance between the brake drum and the brake lining is particularly ensured so that the contact area of the binding face thereof reaches 90% to 95%.

Description

technical field [0001] The invention relates to a method for restoring a brake device, in particular to a method for grinding and repairing a drum brake device that restores the braking function of the brake device as if it were new by using a grinding method. Background technique [0002] Cars often use brakes during driving, and over time, the brakes wear out, which in turn causes brake failure and vicious traffic accidents. [0003] The failure and wear of the brake device is mainly the wear and failure between the brake drum of the brake and the brake pad of the brake. Cause the wear between the brake drum and the brake pad, and the concentric circle formed between the brake drum and the brake pad before the wear is destroyed, so that the "biting" of the brake and the mechanical "chatter" phenomenon occur, and then cause Mechanical damage, damage or failure, and even lead to traffic accidents. Contents of the invention [0004] 1. Build a car brake mechanism, tooling...

Claims

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Application Information

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IPC IPC(8): B23P6/00B24B37/02
Inventor 冷安福
Owner 冷安福
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