Drum brake structure and vehicle

Abstract

The invention discloses a drum brake. The drum brake (1) comprises a side wall (11) and a shoulder part (12) which extends inwards from one end of the side wall (11) in the radial direction, wherein the drum brake (1) further comprises blades (13) which are arranged on at least one of the inner side of the side wall (11) and the inner side of the shoulder part (12), and the blades (13) are used for forming air flow when the drum brake (1) rotates. In addition, the invention further discloses a drum type braking structure and a vehicle. Due to the blades arranged in the drum brake, when the drum brake rotates, air flow can be formed to achieve flow guiding and heat dissipation, and a larger amount of heat and powder are taken away.

Description

technical field [0001] The invention relates to the field of vehicle engineering, in particular to a brake drum, and furthermore, the invention also relates to a drum brake structure and a vehicle. Background technique [0002] Slow down or even stop a moving car, keep the speed of a downhill car stable, and keep a stopped car still. These functions are collectively called braking. The brakes of a car are usually divided into disc brakes and drum brakes. Among them, the drum brake has high braking efficiency, simple structure and flexible space arrangement, and is widely used. [0003] figure 1 with figure 2 discloses a drum brake structure in the prior art, as can be seen from the figure, the wheel rim 2, the brake drum 1 and the wheel hub 3 are sequentially connected together, the dust cover 4 and the brake drum 1 and The hub 3 together forms a chamber 6, and the brake shoe 5 is installed in the chamber 6 and can be opened to contact and rub against the brake drum 1 to...

AI Technical Summary

Problems solved by technology

Due to the formation of the above-mentioned cavity 6, a large amount of heat and powder generated during the braking process will not be taken away quickly, which will increase the temperature of the brake drum 1, resulting in thermal decay, resulting in a decrease in friction performance and affecting the The stability of the braking system increases the hidden danger of driving safety

In addition, when the temperature of the brake drum 1 rises to a certain level, a phase change will occur. Under the interaction of thermal stress and phase change stress, the brake drum is easy to crack, which also affects the safety performance of the car.

Images