Segmental shell for a coal crusher roll including specialized re

Details Segmental shell for a coal crusher roll including specialized re Segmental shell for a coal crusher roll including specialized re

1984-03-05

1986-10-21

Rosenbaum, Mark

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

241294, B21B 2700

Patent

active

046177094

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 segment 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: 12451 (1887-09-01), Williams
patent: 1085908 (1914-02-01), Hoe
patent: 1390693 (1921-09-01), Fernandez
patent: 2887276 (1959-05-01), Minarik

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