| 摘要 |
<p>A belt scraper for removing debris from the outer surface of a conveyor belt incorporates a gear arrangement by which the support arm for one of the scraper blades may be angularly adjusted with respect to its tension arm and includes a gear housing (80) forming a part of the inner end of one of the tension arms (30) and contains a first or a bull gear (83) in driving relation to the shaft which interconnects the arms (30) and further contains a second or spur gear (82) which is in constant mesh with the first gear (83). The pinion gear has a drive shaft portion (88) which extends from the housing (80) and the gear assembly is positioned at one lateral side of the belt so that the blades may be adjusted while viewing their position on the belt. The gears are clamped in position by thightening nuts (92) which bear against the cover plate (86) of the gear housing (80).</p> |
