关键词: 盘式制动器, 闸瓦间隙, 制动倍率, 闸调机构

Abstract:

Firstly, the working principle of RZS disc brake unit was introduced including the service brake, parking brake and manual auxiliary release. Then, the DOF of RZS disc brake unit was studied and analyzed. According to the different initial conditions of the pad clearance, all the movement joint points of the unit were determined before and after the braking action. Static analysis of each component was performed and the relationship between the compressed air force acted on the piston and braking force was also deduced. At last, the braking rate and its change rules were also calculated and discussed before and after the pad clearance was adjusted respectively. It is found that: although a little change in the pad clearance, it will bring a large fluctuation in total braking force.

Key words: disk brake unit, pad clearance, braking rate, self-adjustment mechanism