The invention discloses a built-in speed reducer which comprises two stages of transmission mechanisms, the first stage is NGW type planetary transmission, the second stage is ordinary gear train transmission similar to an NGW structural form, the first stage of transmission comprises a first stage sun gear, a first stage planet gear and a first stage inner gear ring, and the second stage of transmission comprises a second stage sun gear, a second stage planet gear and a second stage inner gear ring. The first-stage transmission comprises a first-stage sun gear, a first-stage planet gear and a first-stage inner gear ring, the second-stage transmission comprises a second-stage sun gear, a second-stage planet gear and a second-stage inner gear ring, the first-stage inner gear ring and the second-stage inner gear ring are hinged together through a second box body, the speed reducer is further provided with an input spline sleeve, and an external motor spline is connected with a spline at the left end of the input spline sleeve. A spline at the right end of the spline sleeve is connected with a first-stage sun gear of the first-stage transmission mechanism, the first-stage transmission mechanism transmits power to the second transmission mechanism, the second transmission mechanism and the first transmission mechanism jointly transmit the power to the box body, the power is output through rotation of the box body, abrasion of parts is reduced, and the service life of the box body is prolonged. The service life of a machine is prolonged, the oil seal size is changed, and oil seal reliability is improved.

    本发明公开了一种内藏式减速机,所述减速机包括两级传动机构,第一级为NGW型行星传动,第二级为类似NGW结构形式的定轴轮系传动,所述第一级传动包括第一级太阳轮、第一级行星轮和第一级内齿圈,所述第二级传动包括第二级太阳轮、二级行星轮和二级内齿圈,所述第一级内齿圈和第二内齿圈通过箱体二铰接到一起,所述减速机还设置有输入花键套,所述外部电机花键与输入花键套左端花键连接,花键套右端花键与一级传动机构的第一级太阳轮连接,所述一级传动机构将动力传动至第二传动机构,所述第二传动机构与第一传动机构合力将动力传输至所述箱体,通过所述箱体旋转将动力输出,减少了零件磨损,增加了机器使用寿命改变了油封尺寸,增加油封可靠性。


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    Title :

    Built-in speed reducer


    Additional title:

    一种内藏式减速机


    Contributors:
    CHENG HUA (author) / TANG HONGJUN (author) / XIAO KAIBO (author) / ZHOU YU (author) / ZHOU WEI (author) / YANG HONG (author) / WANG HONG (author)

    Publication date :

    2022-11-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16H Getriebe , GEARING / B66C Krane , CRANES



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