Hydraulic drive system and method for driving a belt conveyor
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United States of America Patent
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Oct 11, 2016
Grant Date -
Jul 16, 2015
app pub date -
Mar 26, 2015
filing date -
Oct 11, 2012
priority date (Note) -
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Abstract
The invention relates to a hydraulic drive system for a belt conveyor with a motor-driven primary pump which is arranged in a hydraulic primary circuit and is intended for conveying hydraulic fluid, a hydraulic motor which is supplied with hydraulic fluid via the primary circuit and is intended for driving the belt conveyor, and a control device which influences the flow of hydraulic fluid in the primary circuit and is intended for controlling the belt speed of the belt conveyor. In exemplary embodiments, the primary pump is a variable displacement pump and has a pump regulator for regulating the conveyed flow of hydraulic fluid, and the control device comprises a hydraulic control circuit, which is operated by means of an auxiliary pump, for subjecting the pump regulator to an adjustable actuating pressure.
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