Cooling system and method for vehicle brake drum

Abstract

The application discloses a vehicle brake drum cooling system and its method, which relate to the technical field of vehicle cooling and braking. The cooling system includes: a cooling unit whose air inlet is used to connect a high-pressure air source. Pressure regulating valve, second air storage tank, switch control assembly, air nozzle; temperature sensor is used to collect the temperature of the brake drum; the pressure regulating valve is used to pass the high-pressure air from the air inlet into the cooling system according to the pressure of the high-pressure air source unit; the second air storage tank is used to receive and store the high-pressure gas source flowing through the pressure regulating valve; the switch control assembly includes a controller and a switch; the controller is used to receive the temperature collected by the temperature sensor, and drive the switch to make the second storage tank The air cylinder and the air nozzle are connected or disconnected; the air nozzle is used to spray high-pressure gas to the brake drum to cool the brake drum. The application has simple composition, small size, easy space installation, and effectively realizes cooling of the brake drum.

Description

technical field [0001] The present application relates to the technical field of vehicle cooling and braking, in particular to a vehicle brake drum cooling system and a method thereof. Background technique [0002] Drum brakes are reliable in performance and lower in manufacturing cost than disc brakes. Therefore, drum brakes are widely used in commercial vehicle braking systems. In the prior art, the heat dissipation performance of the drum brake is relatively poor. After the vehicle is frequently braked for a long time, the temperature inside the drum brake will rise sharply, and thermal decay will occur, resulting in a rapid decline in the braking performance of the vehicle, and even The situation of brake failure occurs, and even threatens the safety of the vehicle and the driver in severe cases. [0003] At present, the common practice in the industry is to reduce the temperature of the brake drum by installing a water spray device. The specific method is to install a ...

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Problems solved by technology

[0004] However, the use of water spray devices to cool down mainly has the following disadvantages: one is that the water tank needs to be installed in a suitable space on the vehicle, and it is difficult to have space for installation in a vehicle with a relatively compact layout; the other is that after the water tank is filled with water, the increase The total mass of the vehicle is increased, which directly leads to the increase of fuel consumption; the third is that the hot brake drum is prone to cracking due to the excessive temperature difference after encountering the cold water of single-point spray; the fourth is that the cooling water is easy to drip on the road in winter Icing, threatening the normal driving of other vehicles

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