Output Parameters of a a Drum Brake with Floating Shoes

Abstract

A method is developed for calculating the output characteristics of a drum brake with floating shoes on the basis of the system configuration, the dimensions of the components, the frictional coefficient in contact zones of the linings, and the driving forces on the shoes. By this means, the structural parameters of the brake, their inference on the braking torque, the effectiveness of the shoes, the reaction forces in the shoe supports, and the maximum pressure on the frictional linings may be determined at the design stage. As an illustration, brake mechanisms with a single shoe and with servo amplification are calculated.