In one aspect there is provided a jaw crusher including a motor providing a primary power source to a primary hydraulic pump of the jaw crusher, a crusher frame supporting a fixed jaw and a movable jaw defining a crushing chamber therebetween, a cross beam transversely mounted in the crusher frame, a toggle plate extending between the cross beam and the movable jaw, and a hydraulic system having a primary pump line powered by the primary hydraulic pump for moving the movable jaw and clamping the toggle plate. The hydraulic system includes an auxiliary pump powered independently of the primary pump for effecting movement of the movable jaw.

In one aspect there is provided a jaw crusher including a motor providing a primary power source to a primary hydraulic pump of the jaw crusher, a crusher frame supporting a fixed jaw and a movable jaw defining a crushing chamber therebetween, a cross beam transversely mounted in the crusher frame, a toggle plate extending between the cross beam and the movable jaw, and a hydraulic system having a primary pump line powered by the primary hydraulic pump for moving the movable jaw and clamping the toggle plate. The hydraulic system includes an auxiliary pump powered independently of the primary pump for effecting movement of the movable jaw.

A jaw crusher has an operating mechanism comprising a rotatable shaft coupled to a movable jaw in order to translate rotation of the shaft into oscillatory movement of the jaw. The shaft comprises a coupling portion by which the shaft is coupled to the movable part, wherein, in at least one configuration, a central axis of the coupling portion is parallel with the shaft axis and the coupling portion is eccentric with respect to the shaft axis. The coupling portion is configurable to adjust the location of the central axis with respect to the shaft axis in order to adjust the eccentricity of the coupling portion with respect to the shaft axis, thereby correspondingly adjusting the oscillatory movement imparted to the movable jaw.

A green, safe and efficient mining device for a mine is provided. The device includes a support frame, a crushing bin, a fixed jaw plate, a movable jaw plate, a cam roller, a movable jaw back plate, first springs and a driving device. The support frame is provided with an opening, the crushing bin is installed on the support frame; the fixed jaw plate is vertically installed on a left side of an inside of the crushing bin, the movable jaw back plate is installed at one side of the movable jaw plate; a top end of the movable jaw plate is hinged to a right side of the crushing bin, the cam roller is rotatably connected with the inside of the crushing bin and is slidably connected with the movable jaw back plate.

A green, safe and efficient mining device for a mine is provided. The device includes a support frame, a crushing bin, a fixed jaw plate, a movable jaw plate, a cam roller, a movable jaw back plate, first springs and a driving device. The support frame is provided with an opening, the crushing bin is installed on the support frame; the fixed jaw plate is vertically installed on a left side of an inside of the crushing bin, the movable jaw back plate is installed at one side of the movable jaw plate; a top end of the movable jaw plate is hinged to a right side of the crushing bin, the cam roller is rotatably connected with the inside of the crushing bin and is slidably connected with the movable jaw back plate.

A braking system for use with a crusher having a moving crushing member and a stationary crushing member. The braking system is positioned and is operable to restrict rotational movement of the moving crushing member. The braking system includes a braking disc or plate and one or more braking yokes that each include a magnetic member, such as a permanent magnet or an electric magnet. The braking disc is formed from an electrically conductive material and is perpendicular to the magnets of the braking yoke. Relative movement between the braking disc and the braking yoke induces an eddy current in the braking disc. The induced eddy current creates a magnetic force that opposes rotational movement of the moving crushing member. The braking system can be used with a compact eccentric crusher to restrict the rotation of a crushing roller during an idle mode.

A lifting device is configured to be integratable into a jaw crusher for facilitating access to items to be lifted from above during machine servicing. The crusher includes a crusher frame generally made up of oppositely disposed sidewalls and supporting a fixed jaw and a movable jaw defining a crushing chamber for material to be crushed. The lifting device has at least one primary pulley mountable on the jaw crusher above an item to be lifted and configured for lifting a toggle plate for a jaw crusher, wherein the lifting device is configurable to lift the item in a straight lift.

A lifting device is configured to be integratable into a jaw crusher for facilitating access to items to be lifted from above during machine servicing. The crusher includes a crusher frame generally made up of oppositely disposed sidewalls and supporting a fixed jaw and a movable jaw defining a crushing chamber for material to be crushed. The lifting device has at least one primary pulley mountable on the jaw crusher above an item to be lifted and configured for lifting a toggle plate for a jaw crusher, wherein the lifting device is configurable to lift the item in a straight lift.

A jaw crusher and method or using the same is provided. The jaw crusher includes a crusher housing having an inlet for material to be crushed and an outlet for material that has been crushed. A moveable jaw, which has a wear plate and a stationary jaw, is provided with a second wear plate. The moveable jaw and the stationary jaw form between them a crushing chamber. The moveable jaw is coupled to an eccentric jaw crusher shaft, which causes the moveable jaw to reciprocate in an eccentric motion to crush the material between the moveable jaw and the stationary jaw. A toggle system is provided and includes a drive cylinder provided with an internally mounted sensor to measure the position of the moveable jaw relative to the stationary jaw.

A jaw crusher and method or using the same is provided. The jaw crusher includes a crusher housing having an inlet for material to be crushed and an outlet for material that has been crushed. A moveable jaw, which has a wear plate and a stationary jaw, is provided with a second wear plate. The moveable jaw and the stationary jaw form between them a crushing chamber. The moveable jaw is coupled to an eccentric jaw crusher shaft, which causes the moveable jaw to reciprocate in an eccentric motion to crush the material between the moveable jaw and the stationary jaw. A toggle system is provided and includes a drive cylinder provided with an internally mounted sensor to measure the position of the moveable jaw relative to the stationary jaw.