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    • 1. 发明授权
    • Electrically operated disc brake with back-off protector
    • 带回退保护器的电动盘式制动器
    • US4804073A
    • 1989-02-14
    • US183576
    • 1988-04-19
    • Alistair G. TaigRobert W. JacksonRichard N. DeHays
    • Alistair G. TaigRobert W. JacksonRichard N. DeHays
    • F16D55/22B60T13/74F16D55/00F16D63/00F16D65/14F16D65/18F16D66/00F16D55/16
    • F16D65/18B60T13/741F16D2055/0091F16D2065/386F16D2066/005F16D2066/006F16D2121/02F16D2121/24F16D2123/00F16D2125/40F16D2125/48F16D2125/50F16D2127/04
    • The electrically operated disc brake (10, 110, 310, 410) may be operated by either hydraulic pressure and an electric motor or operated solely by means of an electric motor. The electric motor (40, 340, 440) drives a sun gear (52, 352, 452) of a planetary gear assembly (50, 150, 350, 450). The planetary gear assembly (50, 150, 350, 450) includes a fixed ring gear (70, 370, 470) and a rotatable ring gear (80, 180, 380, 480), the rotatable ring gear (80, 180, 380, 480) having fewer teeth than the fixed ring gear (70, 370, 470) so that rotation of the planetary gears (54, 56, 58) effects a slower rate of rotation of the rotatable ring gear (80, 180, 380, 480). The rotatable ring gear (80, 180, 380, 480) engages a screw (88, 188, 388, 488) which is connected with the piston (30, 130, 330, 430). The piston (30, 330, 430) may be displaced by hydraulic fluid for a service application and the electric motor (40, 340, 440) utilized for a parking application. Alternatively, the piston (130) may be displaced by the electric motor (40) for both service and parking brake applications.
    • 电动盘式制动器(10,110,310,410)可以通过液压和电动机操作,或仅通过电动机操作。 电动机(40,340,440)驱动行星齿轮组件(50,150,350,450)的太阳齿轮(52,352,452)。 行星齿轮组件(50,150,350,450)包括固定齿圈(70,370,470)和可旋转的环形齿轮(80,180,380,480),所述可旋转齿圈(80,180,380,480) ,480),其具有比所述固定环形齿轮(70,370,470)更少的齿,使得所述行星齿轮(54,56,58)的旋转实现所述可旋转齿圈(80,180,380,450)的较慢旋转速度, 480)。 可旋转的环形齿轮(80,180,380,480)接合与活塞(30,130,330,430)连接的螺钉(88,188,388,468)。 活塞(30,330,430)可以由用于服务应用的液压流体和用于停车应用的电动机(40,340,440)移位。 或者,活塞(130)可以由电动机(40)移动,用于服务和驻车制动应用。