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Cutting Unit for a Tunneling Apparatus

  • US 20100206637A1
  • Filed: 02/11/2010
  • Published: 08/19/2010
  • Est. Priority Date: 02/11/2009
  • Status: Abandoned Application
First Claim
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1. A cutting component for a tunneling apparatus, the cutting component comprising:

  • a cutting unit main body having a front cutting side and a rear side, the cutting unit main body including a hub portion defining a socket providing a torque transfer interface, the socket extending through the hub portion in a rear-to-front orientation and having an open end at least at the rear side of the cutting unit main body, the cutting unit main body defining an axis about which the cutting unit main body is rotated in a first direction of rotation during cutting, the axis extending through a central region of the socket in the rear-to-front orientation, the cutting unit main body also including a plurality of cutting arms connected to the hub portion, the cutting arms projecting generally radially outwardly from the axis, at least a first cutting arm of the plurality of cutting arms having a slurry flow directing structure positioned at the rear side of the cutting unit main body, the slurry flow directing structure including a first surface angled to face at least partially toward a rearward direction and at least partially toward the first direction of rotation.

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