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US 5,060,874 AGranted
Crusher
AssigneeMcLanahan Corporation
InventorsGeorge L. Sidney, Jr., Arthur D. Walter
Life of this patent
Estimating the term…
Abstract
A crusher having a pair of spaced rollers mounted on shafts. One of the rollers is moveable with respect to the other roller and the movement is by a pair of screw jacks in conjunction with a pair of toggle assemblies. The moveable roller is supported by moveable bearing housings at ends of its shaft. The toggle assemblies apply a force to the moveable bearing housings to slide each moveable bearing housing along a bearing support and a track located on each side of the crusher. Each roller comprises a pair of roll hubs mounted on the shaft, an expansion ring and a roll shell. Roll wedges are located between the expansion ring and the roll hubs and the roll wedges are drawn together by bolts to provide a radially outward force on the expansion ring which holds the roll shell in place.
Claims29
A crusher comprising:
- a housing having spaced lateral sides and spaced ends;
- a pair of spaced shafts journaled in said housing, a roller mounted on each of said shafts, at least one of said shafts being a moveable shaft for adjustment along the longitudinal axis of said housing with respect to the other of said shafts;
- means for rotating said shafts and said rollers in opposite directions to crush material fed between said rollers;
- a bearing supporting each end of each of said shafts;
- a bearing support located on each of said lateral sides of said housing;
- a tie bar on each of said lateral sides of said housing parallel to and spaced above said bearing support to define a track facing said bearing support;
- a moveable bearing housing for each bearing associated with said moveable shaft and a guide engaging each of said moveable bearing housings, said moveable bearing housings being slideable along said bearing supports and said track whereby said bearing supports support said moveable bearing housings and said guide engages said track;
- screw jacks for said moveable shaft located on opposite sides of said housing;
- means for advancing said screw jacks relative to the longitudinal axis of said housing;
- and
- a toggle assembly positioned between each of said screw jacks and each of said moveable bearing housings for applying a force to said moveable bearing housings, each of said screw jacks engaging one of said toggle assemblies whereby said moveable shaft is moved along the longitudinal axis of said housing.
8 more elements
A crusher comprising:
- a housing;
- a pair of shafts, each of said shafts journaled in bearings and having a roller mounted thereon, at least one of said shafts being moveable with respect to the other of said shafts along the longitudinal axis of said housing, each of said rollers having a pair of roll hubs mounted on the central portion of the shaft, each of said roll hubs having a taper on its outer surface and a recess spaced radially from the inner surface, a pair of shrink discs positioned within said recesses and each of said shrink discs having a taper on its inner surface, a circular wedge having a taper on the outer surface concentrically positioned between each of said shrink discs and the inner surface of each of said roll hubs, a plurality of shrink disc bolts for drawing each pair of shrink discs together to hold said roll hubs onto said shaft, a centering ring mounted between said roll hubs, an expansion ring having an internal notch mounted radially outward of said roll hubs, said internal notch on said expansion ring receiving said centering ring to position said expansion ring, a roll shell mounted radially outward of said expansion ring and having an inner circumference adapted to contact said expansion ring, a pair of roll wedges having a taper on the inner surfaces mounted between said roll hubs and said expansion ring, and a plurality of roll wedge bolts for drawing said roll wedges together to apply a radially outward force to the inner circumference of said expansion ring to hold said roll shell in place on said expansion ring;
- means for rotating said shafts in opposite directions whereby material fed between said rollers is crushed;
- said bearings supporting each end of each of said shafts;
- bearing supports on each lateral side of said housing;
- a tie bar on each lateral side of said housing parallel to and spaced from one of said bearing supports to define a track facing one of said bearing supports;
- a moveable bearing housing for each bearing associated with said moveable shaft, a guide for each of said moveable bearing housings, said moveable bearing housings being slideable between said bearing support and said track along the longitudinal axis of said housing whereby said bearing supports support said moveable bearing housings and said guides engage said tracks;
- a screw jack for said moveable shaft on each lateral side of said housing;
- means for advancing said screw jacks along the longitudinal axis of said housing;
- and
- a toggle assembly between each of said screw jacks and each of said moveable bearing housings for applying a force to said moveable bearing housings, said screw jacks engaging said toggle assemblies to advance said moveable shaft along the longitudinal axis of said housing on said bearing supports.
8 more elements
Dependencies are inferred from the claim text.