Table reinforcing ring for a vertical shaft impact crusher

Details Table reinforcing ring for a vertical shaft impact crusher Table reinforcing ring for a vertical shaft impact crusher

1999-03-22

2000-06-06

Husar, John M.

Solid material comminution or disintegration

Apparatus

Stationary comminuting surface or material bed

241291, 241300, B02C 1900

Patent

active

060708204

ABSTRACT:
On a vertical shaft impact crusher, a table assembly having a reinforcing ring is disclosed. The vertical shaft impact crusher for crushing aggregate material includes a frame, with the table assembly being mountable to the frame for rotation about a vertical axis. The crusher includes a housing defining an impact surface spaced about an interior of the housing and surrounding the table assembly. The table assembly comprises a top surface, a bottom surface, and a peripheral edge. The top surface includes a central portion defining an aggregate landing surface, with the central portion being adapted to permit outward migration of the aggregate material in response to rotation of the table assembly. A plurality of shoe assemblies are mounted to the top surface adjacent to and spaced along the peripheral edge, with each shoe assembly being adapted to cause the outwardly migrating aggregate material to be thrown against the housing impact surface in response to rotation of the table assembly. The shoe assemblies collectively imparting a downward bending moment to the table assembly in response to rotation of the table assembly. A reinforcing ring is mounted to the table assembly bottom surface, with the reinforcing ring being responsive to rotation of the table assembly to thereby counteract the downward bending moment, whereby the stresses on the table assembly are relieved.

REFERENCES:
patent: 4090673 (1978-05-01), Ackers et al.
patent: 5323974 (1994-06-01), Watajima
patent: 5497951 (1996-03-01), Watajima
patent: 5639030 (1997-06-01), Watajima et al.

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