Patent ID: 6554215
Filing Date: 2003-04-29
Classification: B02C

Abstract:
A table assembly for a vertical shaft centrifugal impact crusher comprising:(a) a rotatable table having a plurality of impeller mounting brackets mounted thereon at spaced-apart locations; (b) a plurality of impellers each having a leading edge which engages material being crushed, each leading edge having a cut-out portion; and a trailing edge which contacts an associated mounting bracket; (c) an attachment mechanism associated with each said impeller which attaches said impeller releasably to one of said mounting brackets; (d) a plurality of bottom wear plates which cover the exposed portions of said table between said impellers; (e) raised portions of said bottom wear plates which are located immediately adjacent to the leading edge of said impellers, said raised portions being raised above the remainder of said bottom wear plates, wherein each raised portion includes: a tab which engages a respective cut-out portion of a respective leading edge, thereby causing each impeller associated with each respective leading edge to hold down onto the table a respective bottom wear plate, associated with the respective raised portion, as the table is rotated; and (f) sloped ramps which extend between said raised portions and the remainder of said wear plates.