Impact crusher

Details Impact crusher Impact crusher

1988-05-13

1989-04-18

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Rotary striking member, rotor structure

241294, B02C 1328

Patent

active

048219703

ABSTRACT:
An impact crusher rotor comprises radially slotted discs secured to a shaft at axially spaced intervals and hammer bars releasably secured in the disc slots. A backup bar secured in a slot in every disc provides a keyed connection with a hammer bar, at its rear, and a wedge in the slot maintains the hammer bar engaged against the backing bar with a force that increases with rotor speed. Each wedge can be established in an initial locking position by a screw that has its length radial to the rotor axis, has a threaded connection with the wedge, and has an end reacting against a bottom disc surface defined by the slot. Each wedge is confined to radial motion relative to the disc by a U-shaped shoe which straddles the disc periphery and is releasably fixed to the disc and which also protects a portion of the disc periphery that is in front of the hammer bar.

REFERENCES:
patent: 2747803 (1956-05-01), Hanse
patent: 3531055 (1970-09-01), Alt
patent: 4573643 (1986-03-01), Orphall et al.

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