Radiating slot type brake drum
A technology of brake drum and heat sink, applied in the direction of brake drum, slack adjuster, etc., can solve the problems of brake drum brake surface cracking, temperature rise, brake failure, etc., to achieve weight reduction, prolong service life, Production cost reduction effect
Inactive Publication Date: 2015-07-29
山西汤荣机械制造股份有限公司
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Problems solved by technology
[0002] In the drum brake system of an automobile, the braking of the vehicle is achieved by friction between the friction plate in the brake and the brake drum. The braking surface of the traditionally designed brake drum is a smooth surface. The heat of the moving drum is not easy to dissipate, and the temperature will rise rapidly. Therefore, many vehicles are equipped with water tanks, and the "cooling" method is used to quickly cool down the brake drum. This operation will cause the braking surface of the brake drum to crack. brake failure
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[0009] A brake drum with cooling grooves, such as figure 1 with figure 2 , which includes a brake drum body 1, on the braking surface 2 of the brake drum body 1, there are 10 equidistant cooling grooves 3 integrally cast, such as image 3 , the cooling groove 3 is a V-shaped chute, the angle а between the hypotenuse and the center line of the cross section of the chute is 15 degrees, the width L of the chute opening is 12 millimeters, and the bottom of the chute is set There is a smooth and excessive arc with the groove surface of the chute. When the brake drum brakes frequently, the heat generated can be directly discharged through the cooling grooves 3 on the 10 evenly distributed braking surfaces 2, thus reducing the temperature of the brake drum during use and reducing damage caused by excessive temperature. Brake drum failure failure.
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The invention relates to a radiating slot type brake drum which comprises a brake drum main body. The radiating slot type brake drum is characterized in that 10 radiating slots at equal intervals are integrally cast in a braking surface of the brake drum main body, wherein the radiating slots are V-shaped tilted slots; included angles alpha of bevel edges and central lines of the cross sections of the tilted slots are at 15 degrees; the width L at the openings of the tilted slots is 12 millimeters; arcs which smoothly transit the slot surfaces of the tilted slots are arranged at the bottoms of the tilted slots. The radiating slots of the brake drum provided by the invention can form an airflow channel, so that the radiating speed is increased, the brake failure caused by ultrahigh temperature is avoided, the quantity of broken brake drum caused by high temperature and water is reduced and the service life of the brake drum is prolonged.
Description
technical field [0001] The invention belongs to automobile brake parts, in particular to a type brake drum with cooling grooves. Background technique [0002] In the drum brake system of an automobile, the braking of the vehicle is achieved by friction between the friction plate in the brake and the brake drum. The braking surface of the traditionally designed brake drum is a smooth surface. The heat of the moving drum is not easy to dissipate, and the temperature will rise rapidly. Therefore, many vehicles are equipped with water tanks, and the "cooling" method is used to quickly cool down the brake drum. This operation will cause the braking surface of the brake drum to crack. Brake failure. Contents of the invention [0003] The object of the present invention is to provide a brake drum with cooling grooves. The brake drum is light in weight, reduces the technical steps of the existing brake drum in the heat dissipation process, improves the production qualification ...
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IPC IPC(8): F16D65/10F16D65/78
Inventor 杨自勇杨峰张雅琳
Owner 山西汤荣机械制造股份有限公司