B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
B65G 45/16 (2006.01)
Patent
CA 2184806
The invention relates to an arrangement to strip unwanted matter from belt bands (2) in conveyor belt installations in the region of a driving and/or direction-changing roller (3) of the belt band, comprising a systems support (4) which is attached to a supporting structure for the belt band and on which at least one stripping member (5) is arranged. Each stripping member comprising a scraper blade (17; 48) which is attached to a support (16; 49), which scraper blade, in the ready-to-operate position, abuts against the belt band (2) in a peeling fashion. The stripping member comprises a torsion spring joint (25) on which the blade support is guided in a spring-loaded manner and so as to pivot about a horizontal axis such that, when the scraper blade encounters obstacles which rigidly adhere to the belt band, it can pivot away and subsequently again pivot back into the working position on the belt band. In this regard, the blade support (16; 49) is pivotally supported by a pivot bearing (20a; 50) having a limited pivot angle, such that the scraper blade (17; 48) which abuts against the belt band (2) can adjust to changes in inclination of the belt band (2) in the immediate contact region of the scraper blade (17; 48) by pivoting automatically. The torsion spring joint (25) is attached to a plug-in means (26) which is arranged in a holding means (27a, 27b) which is attached to the systems support (4). The longitudinal axis (28) of the plug-in means (26) intersects the belt band (2) at a point which, in the direction of rotation of the roller (3), is disposed upstream of the contact line (S) of the scraper blade (17; 48).
L'invention concerne un dispositif conçu pour retirer les impuretés présentes sur les courroies (2) de convoyeurs à bande au niveau d'un cylindre moteur ou déflecteur (3) de la courroie (2). Ledit dispositif présente un support de système (4) fixé sur une structure portante pour la bande et sur lequel est monté au moins un élément racleur (5). Chaque élément racleur présente une lamelle racleuse (17; 48) fixée sur un montant (16; 49) et placée en position de fonctionnement de manière à racler la courroie. L'élément racleur présente une articulation à ressort à torsion (25) et peut pivoter sous l'action du ressort autour de l'axe horizontal de cette articulation. Ainsi, lorsque la lamelle racleuse heurte des obstacles adhérant fortement à la courroie, l'élément racleur pivote et les éjecte facilement avant de reprendre sa position de fonctionnement sur la courroie. Le montant (16; 49) de la lamelle pivote sur un palier rotatif (20a; 50) selon un angle de rotation limité de façon à ce que la lamelle racleuse (17; 48) s'appuyant sur la courroie (2) puisse s'adapter, par des rotations automatiques, à des changements d'inclinaison de la courroie (2) apparaissant à proximité immédiate de la lamelle racleuse. L'articulation à ressort à torsion (25) est fixée sur un dispositif enfichable (26), monté dans un support (27a, 27b) placé sur le support de système (4). L'axe longitudinal (28) du dispositif enfichable (26) coupe la courroie (2) en un point situé, dans le sens de rotation du cylindre (3), avant la ligne de contact (S) de la lamelle racleuse (17; 48).
Schwarze Hans-Otto
Shapiro Cohen
LandOfFree
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