Patent ID: 7744302
Filing Date: 2010-06-29
Classification: B02C,Y10T

Abstract:
1. A rotational alignment locking device for a VSI mineral breaker, the VSI mineral breaker having a bearing cartridge assembly and a rotor rotatably connected to the bearing cartridge assembly, the rotational alignment locking device comprising: a vertical shaft rotatably securable in the bearing cartridge assembly, said shaft having a top edge portion having an upwardly extending pilot key and a generally annular horizontal floor surrounding said pilot key; a generally cylindrical taper lock comprising an annular top surface securable to the rotor, and a center bore having an inner surface, said shaft firmly received in said center bore; a generally annular keyway defined by said pilot key and said horizontal floor and said inner surface of said center bore, and said top surface of said taper lock having a plurality of upwardly facing, circumferentially spaced slots in communication with said annular keyway; and a cross-key having an overall symmetrical configuration, a generally annular main body, a plurality of arms and a center aperture, said main body having a generally annular, vertical, outer perimeter surface, said plurality of arms extending radially from and disposed symmetrically about said main body, said pilot key removably inserted in said center aperture, said main body removably received in said keyway and abutting said horizontal floor of said vertical shaft, and each of said plurality of arms removably disposed in one of said slots of said top surface of said taper lock, such that said shaft is locked in rotational alignment with said taper lock.