Controlling the operation of an industrial machine based on wire rope dead wraps

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United States of America Patent

PATENT NO 9255377
APP PUB NO 20150204048A1
SERIAL NO

14601699

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Abstract

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An industrial machine that includes a dipper, a hoist drum, a wire rope connected between the hoist drum and the dipper, a hoist motor, a sensor, and a controller. The sensor generates a signal related to a number of wire wraps of the wire rope around the hoist drum, which is received by the controller. The controller determines, based on the signal from the sensor, the number of wire wraps around the hoist drum. If the controller determines that there are an insufficient number of dead wraps around the hoist drum, the controller sets one or more parameters of the hoist motor. The controller sets each of the one or more parameters of the hoist motor to a value that is lower than a normal operational value for the parameter.

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Patent Owner(s)

  • HARNISCHFEGER TECHNOLOGIES, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Colwell, Joseph J Hubertus, US 26 278
Linstroth, Michael Port Washington, US 21 286
Voelz, Nicholas R Jackson, US 17 86

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