| 摘要 |
Indicator of stretch of additionally fixing brake comprises of a box (1) that is made of a front cover (2) and a back cover (3). On the back cover (3) is embedded a large conical gear wheel (8) that is cogged in the angle of 90° with a small conical gear wheel (9) wherein a leading screw (10) is set with the tip of the scales (7). The large conical gear wheel has an outlet X mm (4). The leading screw (10) is set in over the bearings on the rear cover (3). The large conical gear wheel (8) is fixed to the guiding screw of the scotch block fixing brake whereto, on the scale (6), is displayed a wearing out of break engaging shoes, i.e. indicator of stretch. |
