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    • 8. 发明授权
    • Electric linear motion actuator and electric disc brake assembly
    • 电动直线运动执行器和电动盘式制动器总成
    • US08794395B2
    • 2014-08-05
    • US13498345
    • 2010-09-13
    • Tatsuya YamasakiMasaaki Eguchi
    • Tatsuya YamasakiMasaaki Eguchi
    • F16D55/08F16H1/24F16H57/02
    • F16H25/2252F16D65/18F16D2121/24F16D2125/40F16D2125/48
    • In an electric linear motion actuator, it is proposed to uniformly distribute external thrust loads to respective planetary rollers while the planetary rollers are revolving around a rotary shaft while rotating about their respective axes with a helical rib of an outer ring member in engagement with circumferential grooves of the respective planetary rollers. The planetary rollers have bearing support surfaces on which thrust bearings are supported, respectively. The distance from the bearing support surface of each planetary roller to a predetermined reference position of each circumferential groove (6a) of the planetary roller is different from the corresponding distances for the other planetary rollers, whereby with the planetary rollers supported by the respective thrust bearings, the axial position of each circumferential groove coincides with the axial position of the portion of the helical rib of the outer ring member that is engaged in the circumferential groove.
    • 在电动直线运动致动器中,提出将各个行星辊的外部推力载荷均匀地分布,同时行星滚子围绕旋转轴旋转,同时围绕其各自的轴线旋转,同时外圈构件的螺旋肋与圆周槽 相应的行星辊。 行星滚子分别具有支承推力轴承的支承面。 从每个行星辊的轴承支撑表面到行星辊的每个周向槽(6a)的预定基准位置的距离与其他行星辊的相应距离不同,由此由各个推力轴承支撑的行星辊 每个周向槽的轴向位置与外圆环的螺旋肋的与圆周槽啮合的部分的轴向位置重合。