The invention discloses a parking braking device for a drum brake. The parking braking device comprises a left shell, a right shell communicated with the left shell, an upper cover covering the top end of the left shell and the top end of the right shell, a parking pull wire, a driving piece arranged in the left shell, and a braking mechanism arranged in the right shell and rotationally matched with the output end of the driving piece. The braking mechanism comprises a direction-changing transmission part matched with the output end of the driving part and a braking part coaxially arranged in the center of the direction-changing transmission part and rotationally matched with the direction-changing transmission part, the parking pull wire penetrates through the bottom end of the right shell and is connected with the braking part, and a detection part is arranged on the inner wall of the right shell and located above the direction-changing transmission part. The turning rotating piece drives the braking piece and the parking pull wire to move up and down along the right shell, and parking and releasing are achieved. A driver determines whether parking and parking releasing are successful or not according to the position signals collected by the detection part, and the purposes of accurate parking and releasing are achieved.
本发明公开了一种用于鼓式制动器的驻车制动装置,包括:左壳体、与左壳体连通的右壳体、盖合在左壳体的顶端和右壳体的顶端的上盖、驻车拉线,左壳体内设置有的驱动件,右壳体内设置有与驱动件的输出端转动配合的制动机构;制动机构包括与驱动件的输出端配合的变向传动件、以及同轴设置在变向传动件中心且与变向传动件转动配合的制动件,驻车拉线贯穿右壳体的底端并与制动件连接,右壳体的内壁设置有检测件,检测件位于变向传动件的上方。变向转动件带动制动件、驻车拉线沿右壳体上下移动,实现驻车和释放;驾驶人员根据检测件采集的位置信号确定驻车和驻车释放是否成功,达到准确驻车和释放的目的。
Parking braking device for drum brake
一种用于鼓式制动器的驻车制动装置
2022-11-15
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
EPB control system and method of drum brake parking braking device
Europäisches Patentamt | 2022
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