| 摘要 |
<p>An idler roller assembly (10) including a slew frame (11) which are supported by a bearing assembly (12) on a base frame (13), as depicted an arrangement of rollers includes a central roller (14) and opposed pairs of rollers shown as side rollers (15, 16, 17, 18), respective actuator rollers (19, 20) are positioned between the pairs of side rollers and form a part of a brake means. The brake means operates upon a belt engaging either of the actuator rollers (19, 20) depending upon the direction of belt misalignmen tto apply brake pads (21, 22) to the rollers (15, 16) or brake pads (23, 24) to the rollers (17, 18).</p> |
