| 摘要 |
<p>A brake, comprising a connecting mechanism enables the driving member to bring the driven member into their common movement, a fixed seat having friction surface and a braking part connected on the driven part; said connecting mechanism comprising an acting block and a driving block, the two can match together in relative movement and make relative movement when the driving member acquired active force or lost active force, enables the driven block making relative displacement on the direction of fitting or disengaging movement relative to the driven member, to realize braking or relieve braking for the driven member; said connecting mechanism also comprises a limiting mechanism, used for restricting the distance of relative movement of the acting block and driving block, and when braking or relieving braking has been accomplished, enables them to be in the state of common movement.</p> |
