| 摘要 |
A plow scraper for removing debris, such as dirt, mud and fine particles, adhering to the surface of a conveyor belt. Scraper includes a V-shaped metal frame, a depending flexible strip for each arm of the frame, a resilient scraper blade for each arm of the frame, and securing means extending through aligned apertures in the blades, and the frame so that the blades can be removed and replaced, when worn. Frame is secured for pivotal movement to a shaft that extends laterally across the belt, and the shaft, in turn, is joined to the framework of the conveyor at opposite sides of the belt. Roller is secured to frame so that resilient blades are pressed into contact with surface of belt to skim debris therefrom as belt is driven therebelow. Roller always projects beneath metal frame as the conveyor is driven past the plow scraper. When the scraper blades are worn, the roller enables the plow scraper to ride over the belt and the debris adhered thereto without causing the frequently encountered metal-to-metal and/or metal to belt engagement between the metal frame and the heavy duty staples that are used to join lengthy sections of conveyor belting or the belting itself. Consequently, the service life of the conveyor belt is increased substantially.
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