Impact crusher
AssigneeEl-Jay, Inc.
InventorLouis W. Johnson
Life of this patent
Estimating the term…
Abstract
A flared distributor cap of a rotated impeller assembly directs material to be crushed radially outwardly to scoop-like impeller shoes which fling the material outwardly against breaker bars. The impeller shoes hook over mounting blocks and a pin and a screw will retain a shoe in place should the hook break. An annular distributor table carrying the mounting blocks and shoes has an annular, undercut groove in which interchangeable arcuate segmental wear plates fit. An undercut peripheral edge of a distributor cap overlies beveled, inner peripheral edges of the wear plates to lock them in position. Upper wear plates are secured to an annular distributor table cover, and have undercut grooves into which the cover fits.
Claims16
In an impact crusher:
- a rotatable distributor table,
- a plurality of impeller shoes mounted in spaced positions around the distributor table,
- and a plurality of segmental wear plates forming portions of an annulus and extending around the distributor table between the impeller shoes,
- said table having a groove therearound,
- each wear plate having a rib projecting into said groove for retaining purposes.
In an impact crusher,
- a distributor table rotated on a predetermined axis and having an annular groove having a wall facing radially inwardly,
- a wear plate having an arcuate rib having a wall facing radially outwardly and adapted to interlockingly engage the wall of the groove,
- and clamping means engaging the wear plate and pressing the wear plate against the distributor table.
In an impact crusher:
- a rotatable distributor table,
- a plurality of impeller shoes mounted on the distributor table,
- a plurality of interchangeable segmental upper wear plates each having a groove therein with an undercut radially inwardly positioned wall,
- an annular distributor table cover fitting in the groove and having a sloping inner wall adapted to fit against the undercut wall,
- and means locking the wear plates to the distributor table cover.
In an impact crusher:
- a distributor table rotatable on a predetermined axis,
- a mounting block mounted on the table spaced outwardly from said axis and having a groove at its most radially inward portion,
- an impeller shoe having a hook portion,
- and a bolt extending along the groove and the hook portion of the shoe to hold the shoe and the mounting block against the table,
- a stop member fixed in an upstanding position on the distributor table, the impeller shoe having a radially outwardly opening slot in the lower portion thereof receiving the stop member.
In an impact crusher,
- a distributor table rotatable on a predetermined axis,
- a mounting block fixed to the table,
- an impeller shoe having a hook portion hooking on the mounting block and having a bottom opening,
- and a stop member on the table projecting into the bottom opening.
In an impact crusher,
- a rotatable distributor table,
- plural impeller shoes mounted in spaced relation around the table,
- at least one wear plate on said table for each shoe,
- said distributor table having a mounting groove formed therein and extending therearound,
- said wear plate having a mounting rib projecting into said groove,
- each shoe overlying a portion of the associated wear plate in retaining relationship thereto.
Dependencies are inferred from the claim text.