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Conical crusher

  • US 4,478,373 A
  • Filed: 10/14/1980
  • Issued: 10/23/1984
  • Est. Priority Date: 10/14/1980
  • Status: Expired due to Term
First Claim
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1. An apparatus for crushing materials, comprising:

  • (a) a frame structure including a hub member having a vertical bore;

    (b) a stationary support member having a central longitudinal axis, and having an upper portion and a lower portion, said lower portion being positioned within said bore and secured to said hub;

    (c) a cylindrical eccentric mounted around said stationary support member for eccentric rotation therearound, said eccentric having an axis which intersects said longitudinal axis;

    (d) means for rotating said eccentric about said support member;

    (e) a head assembly having a cylindrical eccentric follower mounted on said eccentric for eccentric rotational movement about said support member, and including a lower crusher surface, and an upper spherical bearing member fixed to the underside of said head assembly;

    (f) a bowl assembly mounted for adjustable movement relative to said frame, said bowl assembly having an upper crusher surface spaced an adjustable predetermined distance from said lower surface under static conditions; and

    (g) a spherical bearing seat supported by rigidly fixed to said upper portion of said support member, and holding and supporting said upper spherical bearing member, said spherical bearing seat having a center of curvature which substantially coincides with said intersection of said eccentric axis and said longitudinal axis.

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