Anti-wrap device for rotating shaft

Details Anti-wrap device for rotating shaft Anti-wrap device for rotating shaft

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 3/02 (2006.01) A01D 34/00 (2006.01) A01D 34/68 (2006.01) A01D 75/18 (2006.01)

Patent

CA 2120067

A device that prevents wrapping of long strands of fibrous material around an exposed rotating shaft has a stationary flange fixed to the chassis or bearing housing for the shaft and a rotating flange fixed to the shaft. The flanges are positioned to pass one another during each revolution of the shaft. When the flanges are nearest to one another, a loop of vegetation forms tightly around the flanges. Continued rotation of the shaft then stretches and tears the loop apart. This loop forming and tearing is repeated for each revolution of the shaft to effectively prevent fibrous material from wrapping around the shaft.

Dispositif servant à prévenir l'enroulement de longs brins de matériel fibreux autour d'un arbre tournant à découvert; le dispositif en question comporte une flasque stationnaire fixée au bâti ou au boîtier du roulement de l'arbre, et une flasque rotative solidaire de l'arbre tournant. Les flasques sont disposées de manière à se côtoyer à chaque rotation de l'arbre. Lorsque les flasques atteignent la position où elles sont le plus rapprochées l'une de l'autre, une boucle serrée de végétation se forme autour des flasques. Le mouvement de rotation de l'arbre entraîne l'étirement et la rupture de la boucle. Ce cycle de formation et de rupture se répète à chaque rotation de l'arbre et prévient efficacement l'enroulement du matériel fibreux autour de l'arbre.

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