Patent ID: 7048214

Claim:
In a crusher of the gyrating cone type: a main frame supporting an annular base plate, a conical hollow spindle, an eccentric member, a cone head on said eccentric member, a hydrostatic lubrication between spindle and eccentric and conehead and hydrostatic lubrication to a spherical trust bearing; flow dividers proportioning lubricant to specified ports; hydraulic and threaded means retaining a conical wear mantle to said conehead; eccentric member attached to a drive plate with counterweights; double reduction gearing, a spherical thrust bearing, and an upper frame consisting of a bowl nut having internal threads lubricated from exterior means, and a threaded bowl within said bowl nut containing a replaceable conical wear liner retained by wedging means; an annular band with vertical bars on its exterior bolted to said bowl, and opposed housings containing hydraulic means to turn said bowl attached to said bowl nut; multiple hydraulic cylinders having attaching means at their closed ends are joined by linking means to anchoring means welded to said main frame and have their rod ends joined to hook like means that hook over the flange of said bowl nut with self aligning means; all said hydraulic cylinders are joined by sealed tubes to accumulator means that are gas pressurized; said cylinders operate in a pulling mode to hold said bowl nut firmly on seating means of main frame, and means to tilt cylinder and hooks outward to rapidly facilitate removable of upper frame assembly; said flow dividers positioned on exterior of main frame direct lubricant flow from outside of said main frame through protective ducting to chambers under said annular base plate where internal oil lines conduct lubricant and coolant to designated connections; multiple depending anti-rotation stops restrain bowl nut to main frame from tangential movement relative to main frame and act as supports when upper frame is detached from main frame.