The invention discloses a wedge type braking single-stage speed reduction axle which comprises a main speed reducer, a axle housing assembly which is connected with the main speed reducer, an axle shaft which is rotatably sleeved with the axle housing assembly and connected with the output end of the main speed reducer, a hub assembly which is sleeved with the axle housing assembly and rotates synchronously with the tail end of the axle shaft, a brake drum which is used for sleeving the axle housing assembly and rotates synchronously with the hub assembly, a wedge brake which is arranged in the brake drum and used for generating braking force through friction with the brake drum, and a brake air chamber which is connected with the wedge brake and is used for driving the wedge brake to generate a preset brake action on the brake drum. The conical surface of the brake air chamber is wedged to generate a brake action, the time for pushing a cam to rotate is saved, the structure is simpler, force transmission links are fewer, the brake efficiency is higher, the brake response time can be shortened, the response time difference with a front axle disc brake is shortened, the brake torqueis improved, and the weight of the whole axle is reduced. The invention further discloses a heavy vehicle, and the beneficial effects of the heavy vehicle are as described above.

    本发明公开一种楔式制动单级减速车桥,包括主减速器、与主减速器相连的桥壳总成、可旋转地套设于桥壳总成内并与主减速器的输出端相连的半轴、套设于桥壳总成外并与半轴的末端同步旋转的轮毂总成、套设于桥壳总成外并与轮毂总成同步旋转的制动鼓、设置于制动鼓内并用于与其摩擦产生制动力的楔式制动器,以及与楔式制动器相连、用于驱动楔式制动器对制动鼓产生预设制动动作的制动气室。本发明利用制动气室的锥面楔入产生制动动作,省去了推动凸轮转动的时间,结构更加精简,力传递环节更少,制动效率更高,能够降低制动响应时间,缩短与前桥盘式制动器的响应时间差,提高制动力矩,降低整桥重量。本发明还公开一种重型车辆,其有益效果如上所述。


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    Title :

    Heavy vehicle and wedge type braking single-stage speed reduction axle thereof


    Additional title:

    一种重型车辆及其楔式制动单级减速车桥


    Contributors:
    YANG QIANGKAI (author) / YANG LEI (author) / ZHU YUNRUI (author)

    Publication date :

    2020-07-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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