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73 条记录 (耗时 0.016 秒)

    Tread brake apparatus
    1.
    发明授权
    Tread brake apparatus 失效
    TREAD制动装置

    公开(公告)号：US3698520A

    公开(公告)日：1972-10-17

    申请号：US3698520D

    申请日：1971-06-24

    申请人： WESTINGHOUSE AIR BRAKE CO

    发明人： MCCLURE GLENN T

    IPC分类号： B60T13/00 ,  B61H1/00 ,  B61H15/00 ,  F16D59/02 ,  F16D65/14 ,  B60T13/04

    CPC分类号： B60T13/00 ,  B61H1/003 ,  B61H15/0028 ,  F16D59/02 ,  F16D2121/26 ,  F16D2125/64 ,  F16D2125/645 ,  F16D2127/007 ,  F16D2127/04

    摘要： This invention relates to a spring-applied power-released brake assembly for each individual wheel of a railway car truck, wherein the brake assembly comprises an electrical torque motor that is effective when fully energized to cause a brake release by moving the fulcrum for a proportioning or variable ratio lever relative to this lever against the yielding resistance of a comparatively light control spring to a position in which a comparatively heavy brake-applying spring becomes effective to bias this lever in the brake-release direction. As the current supplied to the torque motor is reduced, the control spring is rendered effective to shift the fulcrum relative to the lever to a position in which the brake-applying spring is effective via one arm of the variable ratio lever to bias this lever in a brake-applying direction and thereafter, in response to a further reduction of current, to increase the length of this one arm to thereby render the brake-applying spring effective via this lever to correspondingly increase the braking force on the wheel.

    摘要翻译： 本发明涉及一种用于铁路车辆车辆的每个单独车轮的弹簧施加的动力释放制动器组件，其中制动组件包括电动力矩电动机，其在完全通电时有效，以通过移动支点用于配比来产生制动器释放 或可变比杆相对于相对较轻的控制弹簧的屈服阻力相对于相对较重的制动施加弹簧在制动释放方向上有效地偏置该位置的位置。 当提供给扭矩电动机的电流减小时，控制弹簧有效地将支点相对于杠杆移动到通过可变比率杆的一个臂使制动器施加弹簧有效的位置，以将该杠杆偏置 制动施加方向，此后，响应于电流的进一步减小，增加该一个臂的长度，从而使制动施加弹簧通过该杆有效，从而相应地增加车轮上的制动力。