Multi-sided shaft for a crusher

Details Multi-sided shaft for a crusher Multi-sided shaft for a crusher

2006-11-28

2006-11-28

Banks, Derris H. (Department: 3725)

Solid material comminution or disintegration

Apparatus

Rotary striking member, rotor structure

C241S073000, C241S189100, C241S189200, C241S195000

Reexamination Certificate

active

07140568

ABSTRACT:
A shredder, crusher, hammermill, ringmill or the like is provided with a multi-sided rotor shaft to which spider arms and hammers are mounted. The rotor shaft has at least one pair, and preferably two or more pairs, of opposing sides. The hammers are pivotally mounted between supports in the shape of spiders or discs. The supports include openings which have straight sides corresponding to the number of straight sides on the rotor shaft. The straight sides of the support openings engage the rotor shaft straight sides. Hence, the supports are rotationally fixed in place relative to the rotor shaft without the use of keys and keyways, pins, bolts, or other types of fasteners, allowing for easier assembly and reduced maintenance costs for the crusher.

REFERENCES:
patent: 4519551 (1985-05-01), Ceurvorst
patent: 4690340 (1987-09-01), Hatanaka
patent: 5027491 (1991-07-01), Sidney et al.
patent: 5443216 (1995-08-01), Lajoie
patent: 5799887 (1998-09-01), Kroger
patent: 6357680 (2002-03-01), Irwin
patent: 6527210 (2003-03-01), Mecklenfeld

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