The invention relates to the technical field of braking systems, in particular to a gear and ball screw combined transmission mechanism applied to a brake. The device is characterized in that a driving shaft of a motor is coupled with a first gear, the first gear is in meshed connection with a second gear, the second gear is coupled with a first gear shaft, the first gear shaft is in meshed connection with a third gear, the third gear is coupled with a second gear shaft, the second gear shaft is in meshed connection with a fourth gear, the fourth gear is coupled with one end of a ball screw, and the other end of the ball screw is connected with a piston return mechanism; a pressure sensor is arranged on the ball screw between the fourth gear and the piston return mechanism; one end of a pawl is arranged on the outer edge of the ratchet wheel, and the other end of the pawl is connected with an electromagnetic mechanism. Compared with the prior art, when a vehicle is turned from parking to running, the electromagnetic mechanism pushes away the pawl, the motor rotates reversely, the gear and the ball screw drive the lead screw nut to drive the piston to return, the calipers and the brake disc are separated, and the conversion of the calipers from parking to running is achieved.
本发明涉及制动系统技术领域,具体的是一种应用于制动器的齿轮与滚珠丝杠组合传动机构。其特征在于:电机的驱动轴轴接齿轮一,齿轮一啮合连接齿轮二,齿轮二轴接齿轮轴一,齿轮轴一啮合连接齿轮三,齿轮三轴接齿轮轴二,齿轮轴二啮合连接齿轮四,齿轮四轴接滚珠丝杠的一端,滚珠丝杠的另一端连接活塞回位机构;位于齿轮四与活塞回位机构之间的滚珠丝杠上设有压力传感器;齿轮二通过若干弹簧与棘轮连接,位于棘轮的外缘设有棘爪的一端,棘爪的另一端连接电磁机构。同现有技术相比,当车辆从驻车转向行车时,电磁机构推开棘爪,电机反转,齿轮和滚珠丝杠驱动丝杠螺母带动活塞回位,使得卡钳和制动盘分离,实现卡钳从驻车到行车转换。
Gear and ball screw combined transmission mechanism applied to brake
一种应用于制动器的齿轮与滚珠丝杠组合传动机构
2023-01-31
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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