Screw conveyor and operation control method for the same

Details Screw conveyor and operation control method for the same Screw conveyor and operation control method for the same

B - Operations, Transporting

65

G

B65G 33/10 (2006.01)

Patent

CA 2586627

A screw conveyor for conveying an object to be conveyed, supported by a casing 1 by rotation of a screw 2, in which wear of a screw blade and decrease in conveyance efficiency are prevented without the need for extra power. Load on an electric motor 3 or the like for rotating the screw 2 or a value corresponding to the load is measured, and if the value is equal to or larger than a preset upper limit value, a screw shaft 2a is lifted up to increase a gap between an edge of the screw blade 2b and a bottom portion of the casing 1.

Transporteur à vis sans fin pour transporter un objet supporté par une enveloppe (1) par rotation d~une vis (2), selon lequel l~usure d~une lame de vis et la détérioration de l~efficacité de transport sont évitées sans demander une puissance supplémentaire. Une charge sur un moteur électrique (3) etc. pour faire tourner la vis (2) ou une valeur correspondant à la charge est mesurée, et si la valeur est égale ou supérieure à une valeur limite supérieure prédéfinie, un arbre de vis (2a) est relevé pour augmenter l~espace entre le bord de la lame de vis (2b) et le bas de l~enveloppe (1).

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