Variable speed belt conveyor drive system

Details Variable speed belt conveyor drive system Variable speed belt conveyor drive system

1987-01-29

1988-08-23

Spar, Robert J.

Conveyors: power-driven

Conveyor section

Endless conveyor

198855, 192 321, 192 333, 318 77, 318 85, B65G 4300

Patent

active

047654562

ABSTRACT:
A variable speed conveyor drive system, which is programmable to suit various operating conditions; comprises a master drive unit (7) having a drive motor (16), at least one slave drive unit (8-10, 14, 15) having a drive motor (16), a monitor and control unit (23), a control loop (24, 26, 27, 37, 58) from the master drive unit (7) to the monitor and control unit (23), a multiplexer (25) with a master outlet (26) and a slave outlet (27) for each slave drive unit (8-10, 14, 15), the master multiplexer outlet (27) being connected to the master drive unit (7) to form a part of the control loop (24, 26, 27, 37, 58), whereby all motors (16) share the load at a pre-programmed level at any speed of operation, and each slave multiplexer outlet (27) having an individually adjustable and programmable time delay operable both before start-up and during running of the conveyor (1).

REFERENCES:
patent: 2707408 (1955-05-01), Ahlen
patent: 3224537 (1965-12-01), Hilpert
patent: 3561367 (1971-02-01), Black
patent: 3812947 (1974-05-01), Nygaard
patent: 4032003 (1977-06-01), Hull
patent: 4574943 (1986-03-01), Green
patent: 4586401 (1986-05-01), Nogle
patent: 4673071 (1987-01-01), Moroto et al.

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