Segmental shell for a coal crusher roll

Details Segmental shell for a coal crusher roll Segmental shell for a coal crusher roll

1986-08-11

1989-02-28

Eley, Timothy V.

Solid material comminution or disintegration

Apparatus

Comminuting elements

241300, 29124, B02C 1326

Patent

active

048078204

ABSTRACT:
A coal crusher roll includes a smooth tubular cylindrical back-up roll having a series of regularly spaced tapped radial holes to receive bolts by which eight identical shell segments may be fastened on the back-up roll. The holes at the axial ends of the segments are undercut to provide a rabbet into which fits the tang of a special lifting hook by which the segment can be easily handled by a lightweight crane. A recess in the central part of the segment defined by a peripheral berm around the backside of the segment reduces the weight of the segment, provides a place for receiving balancing weights, and simplifies the face fit machining for the segment with the back-up roll.

REFERENCES:
patent: 2588900 (1952-03-01), Warsmith
patent: 2803411 (1957-08-01), Pollitz

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