Coupling for connecting feed spout to screening machine

Details Coupling for connecting feed spout to screening machine Coupling for connecting feed spout to screening machine

B - Operations, Transporting

67

C

B67C 11/00 (2006.01) B07B 1/46 (2006.01) B07B 13/16 (2006.01) F16L 27/10 (2006.01) F16L 27/107 (2006.01)

Patent

CA 2259968

A coupling (22) for directing a stream of particles falling from a feed spout (20) through an opening on the top cover of the screen box (14) of a screening machine (10). An upper diaphragm (46) seals the feed spout (20) within the mouth of a funnel (36). A lower diaphragm (70) seals the funnel discharge opening within the top cover opening (24). Both diaphragms are flexible and permit the funnel to tilt axially and accommodate movement of the top cover opening (24) with respect to the feed spout (20). Optionally, a gimble (56) may support the funnel (36) and diaphragms (46, 70) and thereby relieve the diaphragms (46, 70) from the weight of the coupling (22).

Raccord (22) permettant de diriger un flux de particules tombant d'une goulotte d'alimentation (20) à travers une ouverture ménagée sur le couvercle supérieur de la boîte de criblage (14) d'une machine de criblage (10). Une membrane supérieure (46) ferme hermétiquement la goulotte d'alimentation (20) dans l'embouchure d'un entonnoir (36). Une membrane inférieure (70) ferme hermétiquement l'ouverture de décharge de l'entonnoir dans l'ouverture (24) du couvercle supérieur. Les deux membranes sont flexibles et permettent à l'entonnoir de basculer axialement et de s'adapter au mouvement de l'ouverture (24) du couvercle supérieur par rapport à ladite goulotte (20). Un support à la cardan (56) peut éventuellement soutenir l'entonnoir (36) et les membranes (46, 70) de façon à atténuer le poids du raccord (22) sur les membranes (46, 70).

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