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Mobile mining machine having tilted swing axis and method

  • US 5,234,257 A
  • Filed: 10/11/1991
  • Issued: 08/10/1993
  • Est. Priority Date: 10/11/1991
  • Status: Expired due to Fees
First Claim
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1. A mobile mining machine for cutting a tunnel in rock, comprising:

  • a wheel-like cutterhead assembly means for cutting rock, said cutterhead assembly means having a subtantially horizontal axis of rotation and having multiple peripherally mounted roller cutter units;

    rotation means for rotating said cutterhead assembly means about its horizontal axis;

    pitch boom assembly means supporting said cutterhead assembly means, said pitch boom assembly means causing vertical movement of said cutterhead assembly means;

    frame means having a longitudinal axis and a vertical axis perpendicular to the longitudinal axis;

    swing boom assembly means supported by said frame means and supporting said pitch boom assembly means, said swing boom assembly means having a pivot axis oriented at an acute angle from the vertical axis of said frame means, said swing boom assembly causing lateral movement of said cutterhead assembly means and said pitch boom assembly means with respect to said frame means;

    thrust means for thrusting forward as a unit said frame means, said swing boom assembly means, said pitch boom assembly means, and said cutterhead assembly means; and

    holding means for anchoring said mobile mining machine in a tunnel during activation of said thrust means, said holding means including transport means for locomotion of said mobile mining machine.

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