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    • 4. 发明授权
    • Planetary gear mechanism
    • 行星齿轮机构
    • US6033335A
    • 2000-03-07
    • US181636
    • 1998-10-29
    • Takashi HottaTadami KondohMotonori OhnukiKazuya Kubo
    • Takashi HottaTadami KondohMotonori OhnukiKazuya Kubo
    • F16H1/28F16H57/10F16H57/12F16H63/30F16H3/44
    • F16H57/10F16H63/3026
    • A ring gear support member is supported radially immovably on the outer circumference of an input shaft through a ball bearing. A brake hub of a reverse brake, as supported by the ring gear support member, is made movable in the circumferential direction relative to the ring gear support member and is urged to a center position by a coil spring. When the reverse brake is applied to couple the ring gear support member unrotatably to a casing, the brake hub is supported through the coil spring by the ring gear support member. As a result, the meshing vibration, as generated at the meshing portion between pinions and a ring gear, can be prevented from being transmitted to the casing through the brake hub, thereby reducing noise.
    • 环形齿轮支撑构件通过球轴承径向地不可移动地支撑在输入轴的外圆周上。 由环形齿轮支撑构件支撑的反向制动器的制动轮毂可以相对于环形齿轮支撑构件在圆周方向上移动,并且通过螺旋弹簧被推动到中心位置。 当使用反向制动器将环形齿轮支撑构件不可旋转地联接到壳体时,制动轮毂由环形齿轮支撑构件通过螺旋弹簧支撑。 结果,可以防止在小齿轮和齿圈之间的啮合部分产生的啮合振动通过制动轮毂传递到壳体,从而降低噪音。