Patent ID: 6581862
Filing Date: 2003-06-24
Classification: B02C

Abstract:
A rock crusher comprising:a housing; a rotor, disposed at least in part within said housing, said rotor having a substantially horizontal drive shaft; said rotor configured for impacting material introduced into said housing; a first breaker plate disposed substantially above said rotor, said first breaker plate configured for decelerating objects impacted by said rotor; a second breaker plate, disposed substantially below and behind said first breaker plate and substantially behind said rotor; said second breaker plate configured for decelerating objects impacted by said rotor; a pivot shaft coupled to said second breaker plate; said housing having a void therein along a periphery of said housing, which void is configured to receive said pivot shaft therein and further configured to, at least partially, retain said pivot shaft while objects impact said second breaker plate as said rotor turns; and, said void is further configured such that said pivot shaft can be completely removed from said crusher while said pivot shaft remains coupled to said second breaker plate.