Automobile brake drum automatic circulation cooling system and control method

Abstract

Automobile brake drum automatic circulation cooling system and control method, characterized in that: the rotating water inlet and outlet device (1 ) as well as water pumps and water pipes to circulate the coolant in the water jacket brake drum and the coolant in the brake radiator, and use sensors, controllers, and manual switches to work together to control manually or automatically, so as to reduce brake pressure. Drum temperature purpose.

Description

technical field [0001] The invention relates to the technical field of cooling the brake drum of an automobile, in particular to the technical field of automatically cooling the brake drum of an automobile by using circulating cooling liquid. Background technique [0002] At present, many serious traffic accidents occur every year, most of which are caused by illegal operation of trucks, mechanical failures and other reasons, among which 60% of serious traffic accidents are caused by brake failure. This is because drum brakes (such as Figure 9 The structural section of the drum brake drum is shown in the cross-sectional diagram), the drum brake has the advantages of large braking force and low cost, but it has not overcome the shortcomings of poor heat dissipation, and the current trucks are overloaded and heavy, which makes braking and deceleration for a long time During the process, a large amount of heat is generated between the brake pad and the brake drum, which cannot...

AI Technical Summary

Problems solved by technology

The installation cost of this type of water spray cooling device is low, only more than one thousand yuan, and it has a good cooling effect. However, in the actual use process, several problems were found that could not be solved. The main problem is one: due to the rotation of the brake drum, the spray nozzle is fixed, and the brake The drum is prone to cracks due to uneven heat and cold, which will cause the brake drum to be scrapped prematurely; two: the large water tank containing water exceeds 400 kg or even weighs more than 1,000 kg, which will increase the fuel consumption of the car and reduce the payload of the car. The large water tank needs to be filled with water every tens of kilometers, at least three times a day, and many water points are needed along the way, which wastes water resources and is time-consuming and expensive.

Three: Large spray nozzles will consume an astonishing amount of water, and small spray nozzles are easy to block, and in winter in the north, all the water in the water pipes will be frozen into ice, so that the spray cooling device will not work, and it will be sprinkled on the road The frozen water will cause safety hazards to other vehicles, so vehicles in the north are less likely to use water spray cooling devices

Four: During long-term deceleration and braking, although the spray nozzle keeps spraying water to cool down, the temperature of the outer periphery of the braking surface of the brake drum will also reach about 200 degrees Celsius, so that the temperature of the hub center, tire rim and tire close to the brake drum will be rapid. If it is raised, the hub core bearing will be ablated and the tire will burst if it is serious

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