Drive unit
    1.
    发明授权
    Drive unit 有权
    驱动单元

    公开(公告)号:US09109677B2

    公开(公告)日:2015-08-18

    申请号:US13864625

    申请日:2013-04-17

    Abstract: The planetary gear train includes a first sun gear driven by the motor, a first ring gear, a first carrier, and a plurality of first planetary gears arranged at one side of the first carrier and meshing with the first sun gear and the first ring gear. The first sun gear, first planetary gears and first ring gear are helical gears so that meshing surface is increased. Helical teeth formed on an inner surface of the first ring gear mesh with the helical teeth of the first planetary gears. Therefore, the operation is stable and the noise is low. The planetary gears are made of plastic to further decrease the noise. The first ring gear is made by sintered powder metallurgy.

    Abstract translation: 行星齿轮系包括由电动机驱动的第一太阳轮,第一环形齿轮,第一行星架和布置在第一行星架一侧的多个第一行星齿轮,并与第一太阳轮和第一齿圈啮合 。 第一个太阳齿轮,第一行星齿轮和第一环形齿轮是螺旋齿轮,使得啮合表面增加。 形成在第一环形齿轮的内表面上的螺旋齿与第一行星齿轮的螺旋齿啮合。 因此,操作稳定,噪音低。 行星齿轮由塑料制成,以进一步降低噪音。 第一个齿圈由烧结粉末冶金制成。

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