Stop and go conveyor

Details Stop and go conveyor Stop and go conveyor

1989-05-15

1989-11-21

Bui, Thuy M.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Tension adjuster has surface in sliding contact with belt

198813, F16H 708

Patent

active

048819298

ABSTRACT:
The stop and go conveyor includes a driver sprocket and a driven sprocket from which the conveyor is directly driven. On both the tension or drive side of the chain and the slack side of the chain are a pair of fixed idler sprockets and between them is a pair of idler sprockets mounted on a idler sprocket carrier which reciprocates through a complete cycle during each revolution of the driver sprocket. During the stop period of the driver sprocket, chain is being taken up by the driver sprocket by action of the reciprocating member which supplied extra chain. During the second half of the stroke, the reciprocating member uses extra chain, whereby the driven sprocket rotates faster than the driver sprocket. In adition, the reciprocating member moves in such a fashion that, when the driven sprocket starts to rotate it accelerates slowly to a peak angular velocity and the decellerates back down to zero. Its velocity vs. time is represented by a sine curve, an ideal situation for material handling.

REFERENCES:
patent: 2170888 (1939-08-01), Abel
patent: 2426960 (1947-09-01), Wesselhoff
patent: 3054499 (1962-09-01), Detix et al.
patent: 3115046 (1963-12-01), Bliss et al.
patent: 3830114 (1974-08-01), Daines

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