The invention relates to an efficient worm and gear speed reducer which comprises a gear box, an electric motor and a coupler in transmission connection with the gear box and the electric motor. The gear box comprises a box body, a worm wheel and a worm; a brake unit is arranged on the outer side of the coupler; the brake unit comprises a connecting body, a brake wheel arranged in the connecting body, an electromagnet arranged outside the connecting body, and a brake arm; the connecting body is connected with an outer shell of the electric motor; a long groove is formed in the connecting body,and the brake wheel is exposed; the brake wheel and the coupler are fixedly connected and rotate coaxially; the electromagnet is provided with an output rod; the brake arm is arranged in the length direction of the side edge of the connecting body; one end of the brake arm is rotatably connected onto the side wall, opposite to the electromagnet, of the outer shell; the other end of the brake armis fixedly connected with an output rod; and when the electromagnet receives an action signal, the output rod contracts inwards to drive the brake arm to move inwards and penetrate through the long groove to clasp the brake wheel so as to achieve the brake function. Compared with the prior art, the efficient worm and gear speed reducer provided by the invention is small in size, reliable in operation and high in bearing capacity and transmission efficiency.

    本发明涉及一种高效蜗轮蜗杆减速机,该减速机包括齿轮箱、电动机以及传动连接齿轮箱和电动机的联轴器,齿轮箱包括箱体、蜗轮和蜗杆,联轴器外侧设有制动单元,所述制动单元包括连接体、设于连接体内部的制动轮、设于连接体外的电磁铁和制动臂,所述连接体和电动机的外壳相连接,连接体上开有长槽,露出制动轮,制动轮与联轴器固定连接同轴旋转,电磁铁设有输出杆,制动臂沿着连接体的侧边长度方向设置,一端旋转连接于与电磁铁异侧的外壳体侧壁上,一端与输出杆固定连接,当电磁铁接收到动作信号时,输出杆向内收缩,带动制动臂向内运动,穿过长槽抱紧制动轮实现制动功能。与现有技术相比,本发明体积小、运行可靠,承载能力和传动效率高。


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    Title :

    Efficient worm and gear speed reducer


    Additional title:

    一种高效蜗轮蜗杆减速机


    Contributors:
    WANG JIANWEN (author) / YI SHUQIANG (author)

    Publication date :

    2021-03-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16H Getriebe , GEARING / B66B Aufzüge , ELEVATORS / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



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