A torque reaction pulley for an inertia cone crusher having an elastically deformable component responsive to a change in torque through the drive transmission of the crusher due to rotation of an unbalanced weight within the crusher.

A torque reaction pulley for an inertia cone crusher having an elastically deformable component responsive to a change in torque through the drive transmission of the crusher due to rotation of an unbalanced weight within the crusher.

A gyratory crusher spider arm shield for releasable mounting to a spider arm is mounted in a position above and around the spider arm via locating feet and is maintained in the position by a fixating ring extending circumferentially around the spider arms and positioned at and above a perimeter of the spider.

Inertia cone crusher for crushing materials includes a body with an outer cone and an inner cone arranged inside, on whose drive shaft an unbalance weight is provided with the aid of a slide bushing and connected via a transmission disk coupling to a combined moving dynamic assembly comprising a counterbalance weight and a counterbalance weight slide bushing, the assembly connected to a gear transmission and a motor, and has an improved plain journal bearing. The plain bearing is installed between the flange and the counterbalance weight, bearing the load from the crusher's moving part, and includes a base ring and an upper ring, the base ring having a spherical bottom surface and its mating recess on the flange's top surface. The bearing enables the moving dynamic assembly's rotation around the axis, using a hydrodynamic sliding mode, with radial oil slots additionally provided on top surface of the base ring.

A gyratory crusher including a main shaft that can be installed into a main frame. The gyratory crusher include an alignment system having a stationary dust collar and a separate alignment ring attached to the dust collar. The alignment ring includes a tapered contact surface extending from a lower outer edge to a top edge to help guide a dust seal past the alignment ring and into contact with an outer surface of the dust collar. The dust seal is received within a receiving cavity of a dust seal retainer mounted to the main shaft of the crusher. A series of alignment openings extend through the dust seal retainer to provide access to an outer edge of the dust seal. The position of the dust seal can be adjusted based upon measurements of the outer edge. The main shaft includes a chamfer on the lower end guide the main shaft into a bushing assembly.

The disclosure relates to novel components of a gyratory crusher (1) which aim to promote self-alignment of a mainshaft assembly (2) upon introduction of the mainshaft assembly (2) into the gyratory crusher (1) by lowering the mainshaft assembly (2) from above the gyratory crusher (1) into the gyratory crusher (1). The novel components may include a dust bonnet (9) having a plurality of guides (15), an end plate (32) having a lower alignment chamfer (36), and/or a counterweight (13) having an alignment chamfer (41). Each of the novel components may be configured to bias a lower mainshaft (26) of the mainshaft assembly (2) of the gyratory crusher (1) into concentric alignment with a bore (56) of the eccentric (11) or eccentric liner (12).

The invention relates to a method for controlling the charging of a crusher, driven by a crusher drive via transmission elements, of a material comminution system, wherein material which is to be crushed is fed to the crusher, a filling level of the crusher is determined using a filling level sensor, and the volume flow of material to be crushed is set and/or regulated according to the filling level determined. The mechanical loading of the crusher or a characteristic variable which is dependent on the mechanical loading of the crusher is determined directly or indirectly, and the filling level of the crusher is set according to the mechanical loading determined, or the characteristic variable which is dependent thereon. The method permits low-wear operation of the material comminution system and of the crusher with, at the same time, a high material throughput rate.

A torque reaction pulley for an inertia cone crusher having an elastically deformable component responsive to a change in torque through the drive transmission of the crusher due to rotation of an unbalanced weight within the crusher.

A cone crusher, including a supporting device being arranged inside a cavity of a main shaft of the crusher. The supporting device is arranged to support a crushing head, and to be vertically displaceable for adjusting the width of a crushing gap. The supporting device has an upper portion enclosed by the crushing head, the upper portion being arranged to provide support to the crushing head. A lower portion extends downwards within the cavity of the main shaft, wherein the upper portion and the lower portion have different outer dimensions as defined transverse to the shaft axis. A pressure-active surface is formed at a transition between the upper portion and the lower portion so as to form a variable-volume compression chamber within the cavity below the pressure-active surface.

A torque reaction pulley for an inertia cone crusher having an elastically deformable component responsive to a change in torque through the drive transmission of the crusher due to rotation of an unbalanced weight within the crusher.