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    • 2. 发明授权
    • Brake actuator
    • 制动执行器
    • US4887697A
    • 1989-12-19
    • US100910
    • 1987-09-25
    • Sigmar Micke
    • Sigmar Micke
    • F16D65/14F16D65/22
    • F16D65/22F16D2125/66Y10T74/18992
    • A wedge and roller brake actuator comprises a wedge disposed between opposed tappets with interposed rollers acting to transmit thrust from the wedge to the tappets for brake actuation, a fixed inclined surface engaged by one roller to restrain the wedge for linear movement, and to ensure that one of the tappets normally associated, in use, with the brake trailing shoe, applies its associated shoe in advance of the other tappet, either the roller-engaging surfaces of the wedge and opposed tappet at either side of the wedge are inclined at different angles to the wedge longitudinal axis, or respective adjusters of the tappets are provided with different clearances between threadedly interengaged components thereof so that one tappet is adjusted to maintain its associated shoe nearer to the drum than the shoe associated with other tappet.
    • 楔形和滚子制动器致动器包括设置在相对的挺杆之间的楔块,其中插入的辊用于将楔形件的推力传递到用于制动器致动的挺杆,由一个滚子接合以限制楔形件以进行线性运动的固定倾斜表面,并且确保 在使用中通常与制动器拖鞋相关联的挺杆中的一个在其它挺杆之前施加其相关联的鞋,楔的两侧的辊接合表面和相对的挺杆倾斜在不同的角度 或者楔形纵向轴线的相应调节器在其螺纹相互接合的部件之间设置有不同的间隙,使得调节一个挺杆以保持其相关联的鞋比与其它挺杆相关联的鞋更靠近滚筒。