US 5,602,945 A · Thrust bearing for use in a conical crusher

Abstract

A thrust bearing system for use in a conical rock crusher is located between a rotational eccentric mechanism and a stationary frame of the rock crusher. The thrust bearing system comprises a stationary bearing and rotatable bearing, each bearing including an annular, generally flat plate centered about a bearing axis. Each flat plate has a generally planar wearing surface and an opposite surface. The wearing surface of the rotatable bearing is configured for concentric, sliding engagement with the wearing surface of the stationary bearing. The wearing surface of the rotatable bearing also includes a plurality of lubrication grooves. Each groove has a length extending in a radial direction of the annular plate from an inner wall of the annular plate across the wearing surface to an outer wall of the annular plate. Each groove has a generally triangular cross section throughout the entire length of the groove.

Claims23

Dependent claims

A thrust bearing system for use in a conical rock crusher, the thrust bearing system being located between a rotational eccentric mechanism and a stationary frame, the thrust bearing system comprising a first bearing and a second bearing, each bearing including an annular, generally flat plate centered about a bearing axis, the flat plate having a generally planar wearing surface and an opposite surface, the wearing surface of the first bearing configured for concentric, sliding engagement with the wearing surface of the second bearing, the wearing surface of the first bearing having a plurality of lubrication grooves, each groove having a length extending in a radial direction of the annular plate from an inner wall of the annular plate across the wearing surface to an outer wall of the annular plate, each groove having a generally triangular cross section throughout the entire length of the groove.

A rock crusher comprising:

a frame;
a vertical shaft fixedly mounted to the frame;
an eccentric rotatably supported about the shaft;
and
a thrust bearing assembly supporting the eccentric, the thrust bearing assembly located between the frame and the eccentric, the thrust bearing assembly including:
a stationary annular thrust bearing fixedly mounted to the frame and coaxial with the shaft, the stationary bearing having a lower surface facing the frame and an upper, generally horizontal surface facing opposite from the lower surface;
and
a rotatable annular thrust bearing fixedly mounted to the eccentric and coaxial with the shaft, the rotatable bearing having an upper surface facing the eccentric and a lower, generally horizontal surface facing opposite from the upper surface and disposed concentrically with the upper surface of the stationary bearing for sliding engagement therewith, the lower surface of the rotatable bearing having a plurality of spaced apart lubrication channels, each channel comprising a first ramp diverging from the lower surface of the rotatable bearing and a second ramp extending from an intersection with the first ramp to the lower surface of the rotatable bearing, wherein each channel is capable of being cut in a single machining operation.

5 more elements

A rotatable annular thrust bearing for use in a thrust bearing assembly, the thrust bearing assembly for use in a rock crusher to rotatably support an eccentric about a vertical shaft fixedly mounted within a frame of the crusher, the thrust bearing assembly including a nonrotatable annular thrust bearing adapted to be fixedly mounted to the frame and coaxial with the shaft, the nonrotatable bearing having a lower surface facing the frame and an upper, generally horizontal surface facing opposite from the lower surface, the rotatable annular thrust bearing being adapted to be fixedly mounted to the eccentric, the rotatable annular thrust bearing comprising:

an upper surface;
and
a lower surface having a plurality of grooves, each groove comprising a first ramp diverging from the lower surface and a second ramp extending from an intersection with the first ramp to the lower surface of the rotatable bearing, wherein each groove is capable of being cut in a single machining operation.

Dependencies are inferred from the claim text.

Thrust bearing for use in a conical crusher

Life of this patent

Thrust bearing for use in a conical crusher

Life of this patent

Abstract

Claims23