A jaw crusher, a crushing plant, and a method for using a crusher. A toggle plate is coupled between a pitman and a rear end of the jaw crusher with bearings at the ends of the toggle plate. A bearing holder for the bearing is present at least at one end of the toggle plate. The bearing is transferred continuously in the bearing holder to a desired location between an upper limit and a lower limit, inclusive of the upper and lower limits, with a transfer member of the bearing holder, and thus the operating angle of the toggle plate in relation to a frame of the crusher and the stroke of the crusher are changed.

A jaw crusher, a crushing plant, and a method for using a crusher. A toggle plate is coupled between a pitman and a rear end of the jaw crusher with bearings at the ends of the toggle plate. A bearing holder for the bearing is present at least at one end of the toggle plate. The bearing is transferred continuously in the bearing holder to a desired location between an upper limit and a lower limit, inclusive of the upper and lower limits, with a transfer member of the bearing holder, and thus the operating angle of the toggle plate in relation to a frame of the crusher and the stroke of the crusher are changed.

A jaw crusher has frame side walls, a rear end connected to the side walls, an eccentric supported by the side walls, a pitman supported by the eccentric, a toggle plate connected between the pitman and a middle section of the rear end including a cross wall. The rear end has a rear end support connected to the cross wall and located on a center plane of the cross section of the rear end. An upper and lower rear cross beams are fixed to the side walls. The upper and lower rear cross beams each have a vertical wall and horizontal ribs connected to the vertical wall. A crushing plant is also disclosed with a body and the jaw crusher mounted on the body.

A jaw crusher has frame side walls, a rear end connected to the side walls, an eccentric supported by the side walls, a pitman supported by the eccentric, a toggle plate connected between the pitman and a middle section of the rear end including a cross wall. The rear end has a rear end support connected to the cross wall and located on a center plane of the cross section of the rear end. An upper and lower rear cross beams are fixed to the side walls. The upper and lower rear cross beams each have a vertical wall and horizontal ribs connected to the vertical wall. A crushing plant is also disclosed with a body and the jaw crusher mounted on the body.

A jaw crusher includes: a fixed jaw plate; a movable jaw plate that swings relative to the fixed jaw plate to crush an object to be crushed between the fixed jaw plate and the movable jaw plate; a gap adjuster including a wedge that adjusts a gap width between the fixed jaw plate and the movable jaw plate; and an actuator that moves the gap adjuster to change the gap width. Preferably, the actuator includes a presser that biases and moves the gap adjuster. The presser is movable to a stand-by position that is away from the gap adjuster.

A jaw crusher includes: a fixed jaw plate; a movable jaw plate that swings relative to the fixed jaw plate to crush an object to be crushed between the fixed jaw plate and the movable jaw plate; a gap adjuster including a wedge that adjusts a gap width between the fixed jaw plate and the movable jaw plate; and an actuator that moves the gap adjuster to change the gap width. Preferably, the actuator includes a presser that biases and moves the gap adjuster. The presser is movable to a stand-by position that is away from the gap adjuster.

An actuator mounting assembly comprising a base mounted to an item of equipment and having a pivoting plate hole and a locking pin hole, a pivoting plate having a base hole, a locking pin hole, and a actuator hole, a base pin disposed in the pivoting plate base hole, a locking pin adapted to be removably disposed in the pivoting plate locking pin hole, and an actuator pin disposed in the actuator hole. The pivoting plate is pivotally connected to the base at the pivoting plate hole, the cap end of the actuator is pivotally connected to the pivoting plate at the actuator hole, the piston end of the actuator is pivotally connected to the item of equipment, and the base locking pin hole and the pivoting plate locking pin hole are aligned when the locking pin is inserted therethrough.

An actuator mounting assembly comprising a base mounted to an item of equipment and having a pivoting plate hole and a locking pin hole, a pivoting plate having a base hole, a locking pin hole, and a actuator hole, a base pin disposed in the pivoting plate base hole, a locking pin adapted to be removably disposed in the pivoting plate locking pin hole, and an actuator pin disposed in the actuator hole. The pivoting plate is pivotally connected to the base at the pivoting plate hole, the cap end of the actuator is pivotally connected to the pivoting plate at the actuator hole, the piston end of the actuator is pivotally connected to the item of equipment, and the base locking pin hole and the pivoting plate locking pin hole are aligned when the locking pin is inserted therethrough.

A mounting assembly for mounting an actuator having a base end and a piston end on an item of equipment. The mounting assembly comprises a plate that is adapted to be mounted to the item of equipment at a first location, a pin hole that is disposed on the plate and has a raised portion, and a pin that is disposed in the pin hole and has a pin diameter, a longitudinal axis, and a channel. The pin is affixed to the cap end of the actuator, the piston end of the actuator is mounted to the item of equipment at a second location, and the channel of the pin is seated on the raised portion of the pin hole. A method for mounting an actuator comprising providing a mounting assembly and moving the actuator between a retracted position and an extended position.

A housing assembly for a rock crusher having an eccentric shaft. The housing assembly has an interior side and an exterior side and comprises a first housing portion having an inner side, an outer side, and a plurality of grooves and being removably attached to the rock crusher, and a second housing portion having a plurality of grooves and being removably attached to the first housing portion. The housing assembly also comprises an inner ring having at least one inner ring housing groove and at least one inner ring pitman groove and being disposed on the interior side of the housing assembly, and an outer ring having at least one outer ring groove and being disposed on the exterior side of the housing assembly. The housing assembly is disposed around the eccentric shaft. A method for removably housing a bearing assembly on a rock crusher.