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US 6,637,680 B1Granted
Horizontal shaft impact rock crusher with breaker plate tension bar locking device
AssigneeCedarapids, Inc.
InventorsGregory A. Young, Michael P. Stemper, Albert D. Botton
Life of this patent
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Abstract
A horizontal shaft impact rock crusher having breaker plates which are adjustable by hand, using a novel tension rod adjustment nut locking device which employs several loose-fitting retaining devices which, in combination with a bridge to a frame member or another tension rod, hold the tension rod adjustment nut in place.
Claims20
A rock crusher comprising:
- a housing;
- a rotor, disposed at least in part within said housing, said rotor having a substantially horizontal drive shaft;
- said rotor configured for impacting material introduced into said housing;
- a breaker plate disposed substantially in said housing;
- a tension rod coupled to said breaker plate;
- an adjusting nut on said tension rod configured to limit movement of said breaker plate;
- a second nut disposed on said tension rod distal of said breaker plate with respect to said adjusting nut;
- a member disposed, at least in part, between said adjusting nut and said second nut, said member configured to engage and bear upon said adjusting nut and engage and bear against a retainer;
- the retainer having an inside aperture and an outside surface, said retainer configured to bear, at said inside aperture, against and translate along said second nut;
- and,
- said member being coupled to, at least, a second point on said crusher so as to limit rotation of said member about said tension rod.
8 more elements
A method of adjusting settings of a breaker plate in a rock crusher comprising the steps of:
- releasing a means for limiting displacement of a nut retainer;
- displacing said nut retainer so as to no longer inhibit rotation of an outer nut;
- retracting said outer nut, thereby increasing a distance between said outer nut and a lower nut retainer;
- moving said lower nut retainer out of engagement with a lower nut;
- and,
- rotating the lower nut along a threaded tension rod, such that a breaker plate movement limit is defined.
3 more elements
A tension rod nut locking apparatus for limiting movement of breaker plate in a horizontal shaft impact crusher, the nut locking apparatus comprising:
- an elongated member having an underside and an upper side and a first tension rod receiving orifice;
- said underside having at least one underside surface thereon configured to bear on an exterior nut surface of an adjusting nut;
- a second nut;
- said upper side having upper side structure configured to engage a retainer for the second nut;
- the retainer configured to bear against said elongated member and the second nut, so that said second nut is inhibited from rotation by said elongated member;
- and
- said elongated member configured to couple with a rotation prevention structure disposed on a rock crusher.
4 more elements
Dependencies are inferred from the claim text.