轮边电机制动器及其设计计算

介绍了一种新型的轮边电机制动器的结构原理及特点,该制动器布置在电动机轴上,集行车制动、驻车制动和紧急制动于一体,大大简化了制动器结构和液压控制回路。该制动器由压缩弹簧提供制动力,由液压油解除制动,因此在发动机失效及液压管路故障的情况下仍能安全制动。通过计算制动时制动器需要提供的最大制动力对压缩弹簧进行了传统设计计算,并用Matlab优化工具箱以制动时弹簧的长度为优化目标进行了优化,优化效果明显,显著提高了制动器的储能能力。

Wheel-side motor brake and design calculation

The structure principle and characteristics of a new kind of wheel-side motor brake installed on the motor shaft is introduced,which integrates service brake,parking brake and emergency brake,and simplifies the structure and the hydraulic brake control circuit.The braking force of this brake is supplied by the compression springs and relieved by hydraulic oil.Therefore,the brake can be still effective even if the engine or the hydraulic piping fails.Through calculating the maximum braking force,traditional design for the compression spring is implemented,and optimized by matlab with the length of spring as the optimization objective.The result shows the optimization is obvious and the energy storage capacity of the brake is improved significantly.