The invention provides a winding drum concealed planetary gear-changing speed reducer. A push rod device of the speed reducer is connected with a push rod shaft through a hinge pin, a four-point contact bearing is locked on the push rod shaft through round nuts and is installed in a shift shaft, and a centering gear sleeve, an input gear sleeve, a No. 1 ball bearing and a No.2 ball bearing are respectively arranged outside the two ends of the shift shaft; the input gear sleeve is connected with an input shaft, a No. 3 bearing, a bearing block, the No.1 planet carrier and the No. 2 planet carrier are arranged outside the input shaft, and a No.1 planet carrier, a No. 2 planet carrier, No. 1 sun wheel and No. 2 sun wheel are arranged in the middle of the shift shaft, a rear cover is connected with an inner gear, and the inner gear is connected with a winding drum through a bolt. According to the speed reducer, the planetary gear-changing speed reducers with different reduction ratios can be provided; furthermore, the speed reducer is compact in structure configuration, small in volume, light in weight and high in bearing capacity.


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    Title :

    Winding drum concealed planetary gear-changing speed reducer


    Contributors:
    LEI JIANGHUA (author) / XIAO XIANGPING (author) / XIAO BEIPING (author) / HE JINMAN (author) / CHEN LILI (author)

    Publication date :

    2015-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66D Haspeln , CAPSTANS



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