System for controlling speed of travel in a longwall shearer

摘要

A shearer system for removing material along a mineable distance relative to a mining environment includes a rail assembly to support movement of a shearer carriage thereon. The system further includes a haulage motor structured and arranged to move the shearer carriage along the rail assembly. The system has a rotatably driven cutter that is positionable relative to the shearer carriage. The system further includes an actuator supported by the shearer carriage for changing a cutting height of the cutter. The system further includes a controller that can control a velocity of the shearer carriage based on a translation speed of the cutter, a maximum speed of the shearer carriage, a current cutter height, and a desired cutter height. Optionally, the controller can further control the velocity of the shearer carriage based on a predetermined stopping distance of the shearer carriage.

主权项

1. A mining shearer system for removing material along a mineable distance relative to a mining environment, the system comprising:
a rail assembly to support movement of a shearer carriage thereon, the shearer carriage having at least one rotatably driven cutter, said at least one cutter being positionable relative to the shearer carriage; a haulage motor in drivable engagement with the shearer carriage, the haulage motor being structured and arranged to move the shearer carriage along the rail assembly; an actuator supported by the shearer carriage, the actuator being structured and arranged to change a cutting height of the at least one cutter; a controller configured to control a velocity of the shearer carriage based on a translation speed of the cutter, a maximum speed of the shearer carriage, and a current and a desired height of the cutter.