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Drum type brake

A drum brake and brake bottom plate technology, applied in the direction of slack adjusters, etc., can solve the problems of reducing road friction, braking performance attenuation, and other vehicle safety hazards, and achieve the effect of small size, light weight, and direct heat dissipation effect

Inactive Publication Date: 2013-02-13
莫嘉林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the heat generated during the braking of the known automobile drum brakes is mainly radiated through the ventilation of the outer surface of the brake drum, while the inner surface is in a relatively closed environment and there is basically no air flow. Braking efficiency attenuation occurs due to brake overheating on long slopes; at present, the main method to solve the overheating of drum brakes during driving is to spray water on the outer surface of the brake drum. The disadvantage is that the water spraying device is bulky and requires more Increase the weight of the vehicle and supply work, water will flow to the road surface, when the temperature is above freezing point, it will be kicked up by the wheels to form water mist to pollute the front windshield glass of the rear car, and when the temperature is below freezing point, it will freeze on the road surface, Reduce the friction of the road surface, which will leave a major safety hazard for other vehicles

Method used

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  • Drum type brake

Examples

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Embodiment Construction

[0009] figure 1 In the brake base plate (1), an air hole (9) is opened to connect with the air outlet (10) of the electric blower (3), and when the air outside the vehicle is blown into the brake drum, it is directly blown to the inner surface of the brake drum ( 2), flow along the direction indicated by the air flow route (4); the power terminal of the motor (5) is connected to a contact of the normally open relay (6) of the control circuit (11), and the contact of the normally open relay (6) Another contact is then connected to the positive pole of the power supply, one end of the magnetic coil of the normally open relay (6) is grounded, the other end is connected to the a terminal of the delay switch (7), and the b terminal of the delay switch (7) is connected to the power supply, The c terminal is connected to one contact of the brake light switch (8), and the other contact of the brake light switch is connected to the positive pole of the power supply.

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Abstract

The invention relates to a drum type brake which can be used for forcing the interior of a brake drum to ventilate. According to the drum type brake, vent holes are formed in a bottom plate of the brake and connected with an air outlet of an electric blower; and through the control of a control circuit, air is blown into the drum type brake by the blower in a period of set time during and after braking a vehicle so as to force ventilate and radiate the drum type brake.

Description

Technical field [0001] The invention relates to a drum brake which adopts forced air cooling. Background technique [0002] At present, the heat generated during the braking of the known automobile drum brakes is mainly radiated through the ventilation of the outer surface of the brake drum, while the inner surface is in a relatively closed environment and there is basically no air flow. Braking efficiency attenuation occurs due to brake overheating on long slopes; at present, the main method to solve the overheating of drum brakes during driving is to spray water on the outer surface of the brake drum. The disadvantage is that the water spraying device is bulky and requires more Increase the weight of the vehicle and supply work, water will flow to the road surface, when the temperature is above freezing point, it will be kicked up by the wheels to form water mist to pollute the front windshield glass of the rear car, and when the temperature is below freezing point, it wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/78
Inventor 莫嘉林
Owner 莫嘉林