The invention relates to a double-speed-ratio speed reducer for a coal mine hoisting winch. The double-speed-ratio speed reducer comprises an input shaft and an output shaft; more than one stage of intermediate shaft is arranged between the input shaft and the output shaft; the adjacent shafts are in meshing transmission through gears; the intermediate shaft matched with the output shaft is sleeved with an input gear and two stages of output gears having different tooth numbers; the two stages of output gears are rotationally supported on the intermediate shaft through two bearings respectively; two output shaft gears meshing with the two stages of output gears respectively are fixedly mounted on the output shaft; an inner gear ring is mounted on the intermediate shaft through splines; theinner gear ring is mounted between the two stages of output gears; outer teeth are machined on the end surfaces, opposite to the inner gear ring, of the two stages of output gears; and when the innergear ring slides on the intermediate shaft, the inner gear ring at most meshes with the outer teeth of one of the output gears to drive the output gear to output to the output shaft. Output in different speed ratios and in different directions can be realized, and the speed reducer can meet use requirements of the coal mine winch and has the wide application range.

    本发明涉及一种煤矿井提升绞车用双速比减速机,包括输入轴、输出轴,输入轴与输出轴间设有一级以上的中间轴,相邻轴间由齿轮啮合传动,与输出轴配合的中间轴上套有输入齿轮和两级不同齿数的输出齿轮,两级输出齿轮分别经两组轴承旋转支承于所述中间轴,输出轴上固定安装有与两级输出齿轮分别啮合的两个输出轴齿轮;中间轴上通过花键安装有内齿圈,所述内齿圈安装于两级输出齿轮之间;两级输出齿轮与内齿圈相对的端面上加工有外齿,内齿圈在所述中间轴上滑动时最多与其中一个输出齿轮的外齿啮合带动所述输出齿轮输出至输出轴。可以实现不同速比,不同方向的输出,能够适用煤矿井绞车的使用需求,应用范围广。


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    Title :

    Double-speed-ratio speed reducer for coal mine hoisting winch


    Additional title:

    一种煤矿井提升绞车用双速比减速机


    Contributors:
    YIN QINGFENG (author) / YIN GUIHU (author) / QU GUILAN (author) / WENG YAN (author) / LU XIAOMEI (author) / KANG BAOGANG (author) / JIANG JUN (author) / ZHANG MEIHONG (author)

    Publication date :

    2020-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66D Haspeln , CAPSTANS / F16H Getriebe , GEARING



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