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Anti-spin mechanism for gyratory crusher

  • US 5,732,896 A
  • Filed: 04/18/1996
  • Issued: 03/31/1998
  • Est. Priority Date: 04/18/1996
  • Status: Expired due to Fees
First Claim
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1. A gyratory crusher comprising:

  • (A) a stationary frame;

    (B) a main drive gear which is mounted on said frame and which is driven to rotate about a vertical axis;

    (C) an eccentric shaft rotatably supported on said main drive gear at a location which is offset from said vertical axis, said eccentric shaft having an upper portion and having a lower portion;

    (D) a crushing head mounted on said upper portion of said eccentric shaft; and

    (E) an anti-spin mechanism comprising(1) a torque limiter located in the vicinity of said lower portion of said eccentric shaft, and(2) a gear train operatively coupled to said lower portion of said eccentric shaft and to said torque limiter.

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