A bearing for a crusher, in particular for a gyratory crusher or cone crusher, may include a housing, an eccentric bush that is mounted in the housing such that the eccentric bush can be rotated about an axle, a bushing that is disposed between the housing and the eccentric bush, and a lubricant line for supplying the bushing with lubricant that extends into the eccentric bush. The lubricant line may extend along an axial direction within a wall of the eccentric bush. An outer side of the eccentric bush may have an outlet opening for the lubricant line, with the outlet opening being directed onto the bushing.

A crusher device such as a cone or gyratory crusher is disclosed. The crusher device includes a shaft defining a first direction parallel to its length. The shaft includes an upper shaft end, a crusher head, and an overload safety device that couples the crusher head to the upper shaft end. The overload safety device includes a biasing device configured to bias the crusher head away from the upper shaft end in the first direction. The overload safety device is configured to permit displacement of the crusher head along the first direction relative to the shaft in response to a force acting on the crusher head in the first direction.

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.

The present disclosure relates to a sealing member for a gyratory crusher having a main shaft and a mantle. The sealing member includes a first side and a second, opposing, side and the first side is arrangeable on a circumference of an inner wall of the mantle of the gyratory crusher and at least a portion of the second side is at a distance from the first side, the distance being not less than the difference between a radius of the inner wall of the mantle where the sealing member is arrangeable and a radius of the outer wall of the main shaft where the sealing is to contact the main shaft for sealing a space between the mantle and the main shaft. The sealing member provides an efficient and safe way of installing a mantle of a gyratory crusher.

The present disclosure relates to a sealing member for a gyratory crusher having a main shaft and a mantle. The sealing member includes a first side and a second, opposing, side and the first side is arrangeable on a circumference of an inner wall of the mantle of the gyratory crusher and at least a portion of the second side is at a distance from the first side, the distance being not less than the difference between a radius of the inner wall of the mantle where the sealing member is arrangeable and a radius of the outer wall of the main shaft where the sealing is to contact the main shaft for sealing a space between the mantle and the main shaft. The sealing member provides an efficient and safe way of installing a mantle of a gyratory crusher.

A cone crusher is provided including a frame having a top shell assembly and a bottom shell assembly, and a crusher main shaft slidably supported by the frame. The top shell assembly comprises a spider assembly having a central hub for receiving a top end of the main shat. The bottom shell assembly comprises a hydraulically operated piston assembly configured to raise and/or lower the main shaft with respect to the frame. The top shell assembly further comprises a first crush surface. The crusher further comprises a crusher head assembly supported by the main shaft, the crusher head assembly comprising a second crush surface, wherein the first and second crush surfaces define therebetween a crushing chamber and an opening through which material leaves the crushing chamber when the crusher is in use. The crusher further comprises an adjustment arrangement configured to adjust the position of the first crush surface.

A cone crusher is provided including a frame having a top shell assembly and a bottom shell assembly, and a crusher main shaft slidably supported by the frame. The top shell assembly comprises a spider assembly having a central hub for receiving a top end of the main shat. The bottom shell assembly comprises a hydraulically operated piston assembly configured to raise and/or lower the main shaft with respect to the frame. The top shell assembly further comprises a first crush surface. The crusher further comprises a crusher head assembly supported by the main shaft, the crusher head assembly comprising a second crush surface, wherein the first and second crush surfaces define therebetween a crushing chamber and an opening through which material leaves the crushing chamber when the crusher is in use. The crusher further comprises an adjustment arrangement configured to adjust the position of the first crush surface.

A gyratory crusher main shaft assembly has a main shaft, an axially upper region of the main shaft including a tapered conical section with a protective sleeve friction fitted over the cone. To facilitate mounting and dismounting of the sleeve, at least one groove is indented within a radially external facing surface of the main shaft at the region of the cone to allow fluid to be introduced under pressure to the region between the sleeve and the cone.

A gyratory crusher main shaft assembly has a main shaft, an axially upper region of the main shaft including a tapered conical section with a protective sleeve friction fitted over the cone. To facilitate mounting and dismounting of the sleeve, at least one groove is indented within a radially external facing surface of the main shaft at the region of the cone to allow fluid to be introduced under pressure to the region between the sleeve and the cone.

A mill for the comminution of particulate material by impact means including a shell rotating at super critical velocity and a gyrating mandrel. Material introduced to the mill forms a bed on the inner surface of the shell and is then crushed by the impact of the gyrating mandrel. The axis of rotation of the shell is in angularly displaced from the axis of gyration of the mandrel to transport material through the mill.