Continuous control system for a mining or tunnelling machine

Details Continuous control system for a mining or tunnelling machine Continuous control system for a mining or tunnelling machine

E - Fixed Constructions

21

C

E21C 25/00 (2006.01) E21C 35/24 (2006.01) E21D 9/10 (2006.01)

Patent

CA 2141984

A continuous control system for a mining or tunnelling machine having a boom with a motor driven cutting head at one of its ends and a rotatable turret at the other end, the control system comprising angular encoders for continuously measuring the angles of the boom and of the turret and a linear encoder for continuously measuring the linear position of the cutting head, and further having pressure transducers for continuously measuring the pressures of the various hydraulic cylinders or drives used to operate the boom and the turret. It may also have a power transducer for continuously measuring the power input to the motor driving the cutting head to control the RPM of the latter. The signals from the above various measurements are continuously processed by a computer in accordance with a predetermined computer program and a controller is provided which is responsive to the computer and which continuously controls the various parameters so as to cut a preselected profile at a predetermined depth of cut and rate of advance.

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