Coaxially arranged electronic mechanical brake

The utility model discloses a coaxially-arranged electronic mechanical brake which comprises an executing mechanism assembly, a shell assembly, a support assembly and a friction plate. The actuating mechanism assembly comprises an actuating mechanism end cover, a circuit board, an actuating mechanism shell and a driving motor; the shell assembly comprises a gearbox, a shell, a gasket, a thrust bearing, a ball screw assembly, a spiral spring, an output shaft disc, an output shaft nut, an O-shaped sealing ring, a cover cap, a rubber cover and a dust cover. The bracket assembly is matched with the shell assembly to push the friction plate to move; the friction plate tightly presses the brake disc to generate pressure needed by braking, and the braking function is achieved. 本实用新型公开了一种同轴布置的电子机械式制动器，包括执行机构总成、壳体总成、支架总成、摩擦片；所述执行机构总成包括执行机构端盖、电路板、执行机构壳体、驱动电机；所述壳体总成包括齿轮箱、壳体、垫片、推力轴承、滚珠丝杠组件、螺旋弹簧、输出轴圆盘、输出轴螺母、O形密封圈、罩盖、橡胶盖、防尘罩；所述支架总成与所述壳体总成配合推动所述摩擦片运动；所述摩擦片压紧制动盘以产生制动所需要的压力，实现制动功能。