The traction machine comprises a cup-shaped machine base, the machine base comprises an inner side, an outer side and a containing cavity, a main shaft is rotatably arranged on the machine base in the axial direction of the machine base, a mounting hole for the main shaft to penetrate through is formed in the machine base, a cylindrical inner cylinder coaxial with the mounting hole is arranged on the inner side of the machine base, and the inner cylinder and the machine base are integrally formed; the inner sides of the two ends of the inner cylinder are each provided with a bearing chamber, the spindle is sleeved with two bearings, and the two bearings are arranged in the bearing chambers respectively; the main shaft comprises a first end and a second end, a traction wheel is arranged on the portion, extending out of the machine base, of the first end of the main shaft, and a rotor located in the containing cavity is arranged at the second end of the main shaft. The bearing has the beneficial effects that the two bearings are both installed on the main shaft, the bearing chambers of the bearings are machined on the main shaft together, the concentricity is good, installation errors do not exist, and therefore the service life of the bearings is longer.

    本发明公开了一种小井道外转子曳引机,其包括杯型的机座,机座包括内侧、外侧和收容腔,机座上沿机座轴向可转动地设置有主轴,机座上设置一供主轴穿过的安装孔,机座的内侧设置与安装孔同轴的筒形的内筒,内筒与机座一体成型,内筒两端的内侧各设置一个轴承室,主轴上套设两轴承,两轴承分别设置在一轴承室内;主轴包括第一端和第二端,主轴的第一端伸出机座外的部分设置有曳引轮,主轴的第二端设置有位于收容腔内的转子。本发明的有益效果是:两个轴承都安装在一个主轴上,轴承的轴承室都是在主轴上一起加工出来的,同心度好,且不存在安装误差,因而轴承寿命更好。


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    Title :

    Small shaft outer rotor traction machine


    Additional title:

    一种小井道外转子曳引机


    Contributors:
    ZHAO JIAN (author) / CAO JIANMING (author) / XU WEI (author)

    Publication date :

    2023-12-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66D Haspeln , CAPSTANS



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