The driving axle assembly comprises a shell, an input shaft, an outer friction plate, an inner friction plate, a driving braking piston and a parking braking piston, the input shaft is rotationally installed on the shell, the inner friction plate and the outer friction plate are arranged on the input shaft in a sleeving mode, and the outer friction plate and the inner friction plate are arranged on the shell in a sleeving mode. The inner friction plate and the input shaft are connected in a sliding mode and fixed in the circumferential direction, the outer friction plate and the shell are connected and fixed in the circumferential direction, and the service braking piston and the parking braking piston are installed on the shell in a sliding mode. In the driving process, the driving brake piston can drive the inner friction plate and the outer friction plate to abut against each other. In the parking process, the parking brake piston conducts braking, so that the inner friction plate and the outer friction plate abut against each other. According to the scheme, traveling braking and parking braking both act on the same group of friction plates, the using number of the friction plates is reduced, the stroke of the braking piston is shorter, braking control is more sensitive, and the structure is more compact.
本发明公开了一种驱动桥总成及其行车制动和驻车制动的集成机构,包括壳体、输入轴、外摩擦片、内摩擦片、行车制动活塞和驻车制动活塞,输入轴转动安装在壳体上,内摩擦片和外摩擦片均套设在输入轴上,其中,内摩擦片和输入轴滑动连接并周向固定,外摩擦片与壳体相连并周向固定,行车制动活塞和驻车制动活塞滑动安装在壳体上;行车过程中,行车制动活塞能够驱使内摩擦片和外摩擦片相互抵紧;停车过程中,驻车制动活塞实施制动,使内摩擦片和外摩擦片相互抵紧。上述方案中行车制动和驻车制动均作用于同一组摩擦片上,减小了摩擦片的使用数量,并且制动活塞的行程更短,制动控制更加灵敏,结构更加紧凑。
Drive axle assembly and driving braking and parking braking integrated mechanism thereof
驱动桥总成及其行车制动和驻车制动的集成机构
2023-12-26
Patent
Electronic Resource
Chinese
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