Quick release for gyratory crusher concave

Details Quick release for gyratory crusher concave Quick release for gyratory crusher concave

1979-03-19

1980-04-15

Goldberg, Howard N.

Solid material comminution or disintegration

Processes

Miscellaneous

241215, 241290, B02C 204

Patent

active

041980034

ABSTRACT:
In a crusher having a gyratory conical crushing head that cooperates with an annular bowl, the bowl has a threaded connection with a frame member, to be adjustable up and down by rotation. A clamping ring, acting like a jam nut, also has a threaded connection with the frame member and is so connected with the bowl as to be constrained to rotate with it; but normally the bowl and clamping ring are biased towards one another under clamping force, to prevent bowl rotation. To release the bowl for rotation, pressurized air is injected between the bowl and the clamping ring, acting directly on them to overcome clamping force and being introduced via the helical passage defined by the threaded connection between clamping ring and frame member. Seals between the bowl and clamping ring, and between the bowl and frame member, prevent escape of the air.

REFERENCES:
patent: 2680571 (1954-06-01), Bjarme
patent: 3038670 (1962-06-01), Becker
patent: 3133708 (1964-05-01), Bond et al.
patent: 3797760 (1974-03-01), Davis et al.
patent: 3837585 (1974-09-01), Decker et al.
patent: 3951348 (1976-04-01), Davis et al.

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