Adaptive pitch steering in a longwall shearing system
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United States of America Patent
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Feb 16, 2021
Grant Date -
Dec 6, 2018
app pub date -
Jun 1, 2018
filing date -
Jun 2, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and systems of controlling a pitch angle of a shearer. A controller receives a sensor signal indicative of the pitch angle of the shearer, and receives a target pitch profile defining a plurality of target pitch angles for different sections of a mineral face. The controller determines a pitch difference between the pitch angle and a target pitch angle of the shearer, determines a pitch correction height corresponding to a new height for a floor cutter of the shearer based on the pitch difference, and changes a height of the floor cutter based on the pitch correction height.
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