| 摘要 |
<p>A supplementary braking thrust unit for brake comprises a thruster (1); a thrusting rod (7) of the thruster (1) acts on the braking part (9). Said supplementary braking thrust unit for brake also comprises a supplementary braking mechanism which acts on the braking arms (10) so as to achieve supplementary braking. A supplementary braking method for a brake comprises the following steps: using a thruster (1) to provide braking action on braking arms (10), and using a supplementary braking mechanism to provide further braking action on said braking arms (10) so as to achieve supplementary braking for the brake.</p> |
