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    • 3. 发明授权
    • Engine starter with a planetary reduction gear
    • 发动机起动器带行星减速机
    • US4671125A
    • 1987-06-09
    • US779076
    • 1985-09-23
    • Kiyoshi Yabunaka
    • Kiyoshi Yabunaka
    • F02N15/02F02N11/00F02N15/06H02K7/116F16H3/44H02K7/118
    • F02N15/06Y10T74/132Y10T74/137Y10T74/19684
    • An improved engine starter has a DC motor with a rotor shaft drivingly connected to an output shaft by a planetary reduction gear, the sun gear of the reduction gear being formed on the outer surface of the rotor shaft and the ring gear of the reduction gear being located on the inner surface of the yoke of the DC motor. The improvement comprises the yoke having a support portion integrally formed thereon which rotatably supports a one-piece end of the output shaft which is connected to the rotor shaft. Preferably, the yoke is formed by deep drawing of mild steel. A dust preventing member forms a labyrinth seal around the rotor shaft and prevents dust from entering the motor from the reduction gear.
    • 改进的发动机起动器具有直流电动机,转子轴通过行星减速齿轮驱动地连接到输出轴,减速齿轮的太阳齿轮形成在转子轴的外表面上,减速齿轮的齿圈是 位于直流电动机的轭的内表面上。 改进之处在于,轭具有一体地形成在其上的支撑部,其可旋转地支撑输出轴的与转子轴连接的一端。 优选地,轭是通过深拉低碳钢形成的。 防尘构件在转子轴周围形成迷宫式密封,防止灰尘从减速装置进入电动机。