Patent ID: 6227350
Filing Date: 2001-05-08
Classification: B65G

Abstract:
A belt cleaner comprising an array of a plurality of cleaner units (2) to be arranged in the transverse direction of a conveyor belt on a vertically movable support frame (23), and pressure generator (6) combined with the cleaner units (2):each of said cleaner units (2) including a scraper (3) supported movably in the direction of forward and backward with respect to the surface of the conveyor belt, a scraping portion (4) at the top of the scraper (3) to be brought into contact with the belt surface, and a working portion (5) at the bottom of the scraper (3); andsaid pressure generator (6) including a plurality of support sections (7) which are respectively engaged with the corresponding working portions (5) of the cleaner units (2) to integrally move with the forward and backward motion of the scrapers (3), a pressure passage (8) for causing the support sections (7) to communicate with each other, and a fluid (9) filled in the pressure passage (8); said pressure passage (8) being enclosed and completely filled with the fluid (9); wherebypressing forces of the scraping portions (4a, 4) of all scrapers (3a, 3) are kept uniform against the belt surface in such a manner that when the inner pressure of the pressure passage (8) is increased with any one of the support section (7a) pressed by the corresponding scraper (3a), the other support sections (7) push up the corresponding working portions (5) of the scrapers (3).