A system for monitoring at least one motion parameter of the main shaft of a gyratory or cone crusher. The system includes a sensor, such as a magnetometer, positioned within close proximity to a magnetic element, such as a lifting lug, formed on a top end of the main shaft. When the main shaft rotates or moves vertically, the movement creates a change in the magnetic flux, which is sensed by the magnetometer. The change in the magnetic flux is sensed by the magnetometer and an output signal is generated. A controller receives the output signal and determines at least one motion parameter based upon the detected changes in the magnetic flux. In one embodiment, a permanent magnet can be the magnetic element or can be inserted into the lifting lug to enhance the magnetic flux changes caused by the rotational movement or vertical movement of the main shaft.

There is disclosed a crusher for crushing material into finer particulates. The crusher includes a housing enclosing a cone assembly comprising a crushing head mounted on a shaft. The housing supports an outer crushing shell, while the crushing head supports an inner crushing shell. The two crushing shells cooperate to form a crushing gap therebetween. A cam is provided on the shaft with the cam being located remote from the crushing head. A number of drive units extend between the cam and the housing, wherein each drive unit has a first end movably abutting the cam and a second end movably abutting a discrete spherically domed reaction seat provided on the housing. Each drive unit is a telescopic body with a bore extending therethrough so that hydraulic fluid injected into each bore applies a drive force onto the cam and the reaction seat to cause movement of the crushing head.

A cone or gyratory crusher, including a slip ring, a crusher head, and a first sealing member, arranged between the slip ring and the crusher head, defining a first space above the first sealing member. A first flexible member is connected to the first sealing member and defines a second space below the first sealing member.

An anti-spin system adapted for use on a rock crusher having stationary frame, a crushing head, a crushing head pivot point, a shaft, bearings, a crushing chamber, crushing chamber liners and working fluid. The preferred anti-spin system includes a flow source which is adapted to provide working fluid flow, a working fluid source which is adapted to supply working fluid, a control valve which is in fluid communication with the working fluid source and being adapted to allow the working fluid to flow to the flow source, and a torque transmittal assembly which is adapted to connect the crushing head and the flow source and transmit torque from the crushing head to the stationary frame. The preferred anti-spin system is adapted to control rotation of the crushing head. A method comprising providing such an anti-spin system and controlling the rotation of the crushing head.

A system for monitoring at least one motion parameter of the main shaft of a gyratory or cone crusher. The system includes a sensor, such as a magnetometer, positioned within close proximity to a magnetic element, such as a lifting lug, formed on a top end of the main shaft. When the main shaft rotates or moves vertically, the movement creates a change in the magnetic flux, which is sensed by the magnetometer. The change in the magnetic flux is sensed by the magnetometer and an output signal is generated. A controller receives the output signal and determines at least one motion parameter based upon the detected changes in the magnetic flux. In one embodiment, a permanent magnet can be the magnetic element or can be inserted into the lifting lug to enhance the magnetic flux changes caused by the rotational movement or vertical movement of the main shaft.

A coupling assembly adapted for use on an item of equipment having a first component and a second component and including an eccentric axis plate having a first surface that is operatively connected to the first component and a second surface having a drive tang extending therefrom, a slider plate having a first surface that is in operational contact with the drive tang and having a first groove therein and a second surface having a second groove therein, and an adapter plate having a first surface that is in operational contact with the slider plate second surface and having an adapter plate tang extending therefrom and a second surface that is operatively connected to the second component. The longitudinal axis of the first component and the longitudinal axis of the second component are non-parallel, and the assembly is adapted to couple the first component and the second component.

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.

There is disclosed a crusher for crushing material into finer particulates, the crusher including a housing that encloses a crushing head mounted on a shaft. The housing supports an outer crushing shell, while the crushing head supports an inner crushing shell. The two crushing shells cooperate to form a crushing gap therebetween. The crusher further includes a drive mechanism joined to the shaft for generating movement of the inner crushing shell relative to the outer crushing shell. The drive mechanism includes at least three drive units joined to the shaft and configured to impart a pulling force on the shaft. Also disclosed is a method of operating the crusher, wherein each of the drive units are selectively activated and deactivated to selectively generate orbital or gyratory movement of the crushing head relative to the outer housing.

A bearing assembly for a cone crusher includes an inner slide bearing, an eccentric sleeve and an outer slide bearing arranged for supporting a lower portion 5 of a crushing head shaft. The inner slide bearing has a diameter D1 and an axial height H1 being defined from the inner slide bearing upper end to the inner slide bearing lower end. The outer slide bearing 40 has a diameter D2 and an axial height H2 being defined from the outer slide bearing upper end to the outer slide bearing lower end 40b. A ratio of the inner slide bearing axial height and its diameter H1/D1 is in the range of 0.95 to 1.20. A cone crusher including the bearing assembly is also provided.

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.