ELEVATOR BRAKE ACTUATOR HAVING A SHAPE-CHANGING MATERIAL FOR BRAKE CONTROL
    1.
    发明申请
    ELEVATOR BRAKE ACTUATOR HAVING A SHAPE-CHANGING MATERIAL FOR BRAKE CONTROL 审中-公开
    具有制动控制的形状变化材料的电梯制动器执行机构

    公开(公告)号:US20110240410A1

    公开(公告)日:2011-10-06

    申请号:US11815674

    申请日:2005-02-25

    Abstract: An elevator machine (10) includes a motor (12) that rotationally drives a machine shaft (14). An elevator machine brake (20) applies braking force to a disk (22) that is coupled to the machine shaft (14) to slow or stop the rotation of the machine shaft (14). In one example, the elevator machine brake (20) includes a bias member (38) that applies a bias force to a caliper arrangement (32) to provide a braking force on the disk (22). A brake actuator (48) having a shape-changing material moves against the bias force to control engagement between the caliper arrangement (32) and the disk (22). A controller (26) selectively varies the braking force applied to the disk (22) by controlling an electric input to the shape-changing material of the brake actuator (48).

    Abstract translation: 电梯机(10)包括旋转地驱动机器轴(14)的马达(12)。 电梯机械制动器(20)对耦合到机器轴(14)的盘(22)施加制动力,以减慢或停止机器轴(14)的旋转。 在一个示例中,电梯机械制动器(20)包括向卡钳装置(32)施加偏压以在盘(22)上提供制动力的偏置构件(38)。 具有形状改变材料的制动致动器(48)抵抗偏压力移动以控制卡钳装置(32)和盘(22)之间的接合。 控制器(26)通过控制对制动器致动器(48)的形状改变材料的电力输入来选择性地改变施加到盘(22)的制动力。

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