Control system for automatically halting the movement of a machi

Details Control system for automatically halting the movement of a machi Control system for automatically halting the movement of a machi

1993-04-22

1994-08-30

Shoop, Jr., William M.

Electricity: motive power systems

Limitation of motor load, current, torque or force

241 36, 192 56R, F16D 702

Patent

active

053431308

ABSTRACT:
A machine, such as a plough, is driven with a chain back and forth along a guide to strip mineral from a mineral face. The chain is entrained around chain wheels at ends of the guide and the chain wheels are driven by electric motors and gearing assemblies. Each gearing assembly employs an overload protection which generates a signal in the event of an overload. A control unit with a computer responds to the overload signal to provide a stop signal to actuate a clutch to disconnected the drive. Stops are provided at the ends of the guide and spaced from each stop there is a sensor which provides a signal indicative of the presence of the machine. The control unit responds to the detection signal and provides the stop signal at an optimum time calculated by the computer to ensure the machine is halted at or near each end stop.

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Sieker, Heinz Ulrich, "Betriebserfahrungen mit dem Uberlastschutz-Getriebe S 20-UL auf dem Bergwerk Haus Aden", Gluckauf 126 (1990), pp. 621-627.
Ratz, Walter, "Neue Moglichkeitender Forderer-und Hobelsteuerung", Bergbau, Apr. 1976, pp. 111-114.

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