Abstract: A crusher for crushing mineral material, a method for decreasing give in a crusher and a mineral material processing plant. The crusher includes a movable and a fixed crushing element arranged to receive a force. The crusher further includes a hydraulic cylinder and a piston inside the hydraulic cylinder and a piston rod attached to the piston which extends through a first end of the hydraulic cylinder and is connected to the movable crushing element. The hydraulic cylinder has a first space around the part of the piston rod in the hydraulic cylinder and a second space limited by the first space and the piston. The crusher further includes a valve and a hydraulic fluid connection from the valve to the first space. The valve is configured to enable a flow of hydraulic fluid into the first space in response only to the piston moving in the hydraulic cylinder towards the second space due to said force.

Abstract: A jaw crusher includes a crushing chamber between a fixed jaw and a swing jaw. The jaw crusher also includes an eccentric drive which supports the first end of the swing jaw. The second end of the swing jaw is supported on a rocker plate. The counter-bearing of the rocker plate is arranged as a cross-member and is supported on a hydraulic overload protection mechanism. The cross-member is retained in lateral rocker arms held coaxially to the eccentric shaft of the eccentric drive. The lever axis of the rocker plate projects in a direction of the eccentric shaft and with this projection encloses an acute angle with a radial line of the eccentric shaft. The radial line passes through the counter-bearing of the rocker plate.

Abstract: A jaw crusher includes s a toggle beam having a piston rod arrangement seat, a toggle plate, a first toggle plate seat arranged between the toggle plate and a movable jaw, a second toggle plate seat arranged between the toggle plate and the toggle beam, and a positioning device having a movable piston rod arrangement received by the piston rod arrangement seat of the toggle beam. The jaw crusher further has a toggle plate squeezing device including a contraction member. The squeezing device has a first mounting member connected to the movable jaw, and a second mounting member connected to the piston rod arrangement, to exert a pressing force on the first toggle plate seat, the second toggle plate seat and the piston rod arrangement seat.

Abstract: A jaw crusher includes s a toggle beam having a piston rod arrangement seat, a toggle plate, a first toggle plate seat arranged between the toggle plate and a movable jaw, a second toggle plate seat arranged between the toggle plate and the toggle beam, and a positioning device having a movable piston rod arrangement received by the piston rod arrangement seat of the toggle beam. The jaw crusher further has a toggle plate squeezing device including a contraction member. The squeezing device has a first mounting member connected to the movable jaw, and a second mounting member connected to the piston rod arrangement, to exert a pressing force on the first toggle plate seat, the second toggle plate seat and the piston rod arrangement seat.

Abstract: The present invention relates to a separating device for crushing concrete. The separating device comprises at least two crusher members which, optionally in co-action with bounding elements situated adjacently of the at least two crusher members, define at their upper outer ends an inlet opening for concrete to be crushed and at their lower outer ends an outlet opening for crushed concrete or at least concrete fractions. The separating device further comprises a drive device adapted to move repetitively at least a part of one of the two crusher members in the direction away from and toward the other crusher member. Outlet restriction means are provided under the outlet opening to limit an outflow of crushed concrete and/or concrete fractions. The invention further relates to a method for crushing and separating a composite material, in particular concrete, into original components.

Abstract: A front end of a frame of a jaw crusher comprises a curved front wall for receiving crushing force. The front end comprises an inner rib structure formed to the curved front wall. A jaw crusher and a crushing plant.

Abstract: A bucket type jaw crusher comprises a hydraulic motor connected to one end of an eccentric main shaft, a flywheel connected to the other end of the eccentric main shaft, and a counterweight for balance adjustment fitted at an intermediate section of the eccentric main shaft between the hydraulic motor and the flywheel. A movable jaw teeth side load receiving section of a toggle plate is placed at an upper position than a bucket side load receiving section of the toggle plate, and while movable jaw teeth are reciprocated by rotation of the eccentric shaft, an object to be crushed is pressed against stationary jaw teeth by the movable jaw teeth via rocking motion of the toggle plate.

Abstract: A self-traveling crushing machine includes: a traveling device; a crushing device that is provided on the traveling device and crushes a to-be-crushed object supplied; an overload escaping section that escapes an overload of the crushing device; and a controller that controls the crushing device. In the self-traveling crushing machine, the crushing device is a jaw crusher in which the to-be-crushed object is supplied to a V-shaped space formed by a fixed jaw and a movable jaw and the movable jaw swings relative to the fixed jaw to crush the to-be-crushed object, and the controller includes: an escape-operation determining section that determines whether or not the overload escaping section has operated; and an information output section that sends the escape operation information to an outside when the escape-operation determining section determines that the escape operation has been conducted.

Abstract: In a jaw crusher, cheek plates are mounted on side wall plates of a crusher frame by mounting bolts, and the mounting bolt adjacent to the outlet of the jaw crusher can be covered with the swing jaw by adjustment of an outlet gap-adjusting link mechanism. When the jaw crusher is in operation, the mounting bolt is covered by the swing jaw to avoid contact with raw materials, so that abrasion of and damages to the mounting bolt can be prevented. Thus, a longer lifetime of the jaw crusher can be promoted. Besides, since abrasion of and damages to the mounting bolt can be prevented, a mounting structure of the cheek plate can be stronger.

Abstract: A modular grinding core includes a housing configured to be operatively installed in a variety of external grinding devices, a rasp support member having a coupling adapter configured to be operatively coupled to an actuation mechanism of a first external grinding device at a first time and to an actuation mechanism of a second external grinding device at a second time after being removed from the first external grinding device. The rasp support member includes a receptacle configured to removably receive any one of a variety of rasps. The rasp support member is configured to reciprocate in response a force exerted by the external grinding device. The modular grinding core further includes a grind block member resisting displacement of the food items or spices away from the rasp support member, and an adjustment mechanism allowing a user to adjust a gap between the grind block and rasp support members.

Abstract: A jaw crusher includes: a crusher frame to which a cross member for connecting a pair of side wall plates is provided; a fixed jaw; a swing jaw swingably hung between the side wall plates; a pair of toggle link pins both of which are disposed along a common axial direction having a first outer end pivoted on the side plate and a second inner end pivoted on a main supporter provided to the cross member; and a reaction force-receiving link mechanism including a toggle link rotatably supported by the toggle link pin. The main supporter of the cross member on which the second end of the toggle link pin is pivoted is box-shaped.

Abstract: A jaw crusher where the tension rod includes an electronically-controlled hydraulic pre-load and an automatically releasable pre-load whenever adjustments to the size of the material output are made, together with a remote visual indicator of the setting of the size of the material output.

Abstract: A jaw crusher where the tension rod includes an electronically-controlled hydraulic pre-load and an automatically releasable pre-load whenever adjustments to the size of the material output are made, together with a remote visual indicator of the setting of the size of the material output.

Abstract: The invention is a tablet crusher including a linkage that is operable to bring to bear a force on a platen so as to urge it against an anvil, wherein platen and anvil are shaped so as to bring about a crushing force upon a tablet disposed therebetween. The device comprises: (1) a base; (2) a fulcrum member integrally and immovably fixed to the base; (3) an anvil integrally fixed to the base, the anvil having a concave crushing face; (4) a movable handle pivotally coupled to the fulcrum member at a first pivot point; (5) a compression link, pivotally coupled at a first pivot to the base and coupled at a second pivot to the handle, for facilitating movement of the handle relative to the base; and (6) a platen having a convex crushing face, coupled at a third pivot to the base and coupled at a fourth pivot to the handle, whereby movement of the handle produces movement of the platen relative to the anvil, for crushing a tablet between the anvil and the platen.

Abstract: A jaw crusher where the tension rod includes an electronically-controlled hydraulic pre-load and an automatically releasable pre-load whenever adjustments to the size of the material output are made, together with a remote visual indicator of the setting of the size of the material output.

Abstract: A jaw crusher is provided that includes a toggle plate holder mechanism, provided without increasing the overall height thereof, and a reaction force receiver link mechanism of an up-thrust type. A tension link mechanism acts as the toggle plate holder mechanism and includes a link having a tension link, a tension lever, a tension rod, and a tension spring. The layout angle of the tension link and tension rod can be changed freely by the tension lever.

Abstract: A jaw crusher used to crush hard materials includes a frame and a fixed and movable jaw positioned in spaced opposed relationship to receive hard materials to be crushed between the jaws. A lever is pivotally connected to the frame for pivotal movement about an axis and includes first and second extensions. The first extension includes a part that is in communication with the movable jaw and a part that is in communication with the axis and the second extension includes a part in communication with a reciprocating drive and a part in communication with the pivot axis. The distance between the parts of the second extension is greater than the distance between the parts of the first extension causing leveraged force to be applied on the movable jaw on application of force on the second extension by the reciprocating drive.

Abstract: There is provided a jaw crusher capable of providing a toggle plate holder mechanism without increasing the overall height thereof. A tension link mechanism (70) as the toggle plate holder mechanism includes a link having a tension link (71), tension lever (72), tension rod (73), and tension spring (74). Therefore, the layout angle of the tension link (71) and tension rod (73) can be changed freely by the tension lever (72). The freedom of layout in the height direction can thus be improved. As a result, without increasing the overall height, the toggle plate holder mechanism can be provided for the jaw crusher 30 having a reaction force receiver link mechanism 60 of an up-thrust type.

Abstract: A jaw crusher unit for use in crushing stone and other crushable material having a fixed jaw and a movable jaw which define a crushing zone therebetween. A drive mechanism coupled with the movable jaw is operative to rock the movable jaw to and fro in order to crush material in the crushing zone. A link mechanism connected to a lower end of the movable jaw serves to set any required space between the lower end of the movable jaw and thereby control the discharge of crushed material from the lower end of the crushing zone. The link mechanism includes a pressure-medium controlled toggle mechanism which is automatically adjustable to compensate for wear.

Abstract: A portable rock crusher (10)is adapted for attachment to a boom (16) of an earthmoving vehicle (14). The crusher has a hopper (32) with a material inlet (49) and a material outlet (44) spaced from the inlet. A pair of jaws (46,48) is located within the hopper and positioned between the inlet and outlet. The jaws are movable relative to one another to vary the spacing therebetween and an actuator (68) is provided to control relative movement between the jaws. Material moving from the inlet to the outlet thereby passes between the jaws and is crushed upon relative movement of the jaws to provide an aggregate at the outlet.

Abstract: A jaw crusher having one or more improved elliptical jaw members is disclosed. The jaw crusher includes a frame, a stationary jaw, and a moveable jaw. The stationary jaw is mounted to the frame and includes a top edge, a bottom edge, and an interconnecting face extending between the top edge and the bottom edge. The moveable jaw, which is shiftably mounted to the frame and is moveable toward and away from the stationary jaw, includes a top edge, a bottom edge, and an interconnecting face extending between the top edge and the bottom edge. The face of at least one of the stationary jaw and the moveable jaw includes an elliptical profile.

Abstract: An outlet clearance adjustment mechanism of a jaw crusher, which is small in size, simple in structure, and capable of reducing outlet clearance adjusting time, is provided. For this purpose, the outlet clearance adjustment mechanism includes a toggle block (30) having a downward inclined plane (31), a toggle block frame (32) having a mounting surface (33) on which the toggle block (30) is slidably mounted and an inclined plane (34) provided to oppose the downward inclined plane (31), a detachable clearance adjustment shim (36) provided between the opposing downward inclined plane (31) and the inclined plane (34), and the hydraulic type of mechanical lock cylinder (40) provided at a back side of the inclined plane (34) of the toggle block frame (32).

Abstract: Nestable trays are part of a pill crushing device. The trays have cylindrical midportions, spherical end portions and a planar flange. The pill crushing device has an anvil or mortar portion to engage a bottom tray, and a hammer or pestle portion to engage a top tray. The anvil portion has a recess the perimeter of which supports the bottom tray flange. A finger gap is conveniently left in the perimeter for access to the bottom tray. The hammer portion extends between two pivotable lever arms and has sufficient tolerance to allow limited independent movement of the lever arms, which in turn allows relative movement of the trays to crush pills. The hammer can contact the top tray, and may be of cylindrical form with hemispherical ends, which can itself nest in the top tray, in another version it is slightly larger and does not nest but engages the tray near the top. In a third version the cylindrical hammer has end blocks, the cylinder registers the top tray, while the blocks engage the top tray flange.

Abstract: A jaw crusher having a stationary jaw and a movable jaw which define a variable crushing gap (or closed side setting), a toggle beam, and a toggle between the toggle beam and the movable jaw, and a toggle seat between the toggle and each of the beam and movable jaw for seating the toggle against the beam and movable jaw. A double-acting hydraulic ram having a connection with the toggle beam for shifting the toggle beam toward and away from the fixed jaw. An abutment is supported by the housing and engageable by the toggle beam for defining an adjustably variable limit of shifting thereof. End caps provide a rigidly guided sliding toggle beam having a plurality of alternatively selectable positions of adjustment.

Abstract: An outlet clearance adjustment mechanism of a jaw crusher, which is small in size, simple in structure, and capable of reducing outlet clearance adjusting time, is provided. For this purpose, the outlet clearance adjustment mechanism includes a toggle block (30) having a downward inclined plane (31), a toggle block frame (32) having a mounting surface (33) on which the toggle block (30) is slidably mounted and an inclined plane (34) provided to oppose the downward inclined plane (31), a detachable clearance adjustment shim (36) provided between the opposing downward inclined plane (31) and the inclined plane (34), and the hydraulic type of mechanical lock cylinder (40) provided at a back side of the inclined plane (34) of the toggle block frame (32).

Abstract: The objective of this invention is to provide a sliding mechanism for the toggle block of a jaw crusher that enables the position of the toggle block to be adjusted easily and quickly. This invention is a novel sliding mechanism for the toggle block of a jaw crusher, in which the toggle block supports one end of a toggle plate connected at the other end to the bottom end of the swing jaw: The toggle block is comprised of an upper block and lower block, joined by an elastic body, sandwiched between an upper support member and lower support member that are joined to the machine frame. The toggle block slides back and forth with the application of an external force.

Abstract: A jaw crusher in which in adjusting an outlet gap, manual releasing and applying operations for a tension force of a tension rod are not necessary, and repair of rough of a contact surface between a toggle block and a wedge and frequency of replacement thereof can be reduced. An outlet gap adjusting apparatus for automatically adjusting an outlet gap, the apparatus capable of securing a space required for maintenance on the back frame side of a swing jaw. A tension spring 21 for applying a tension force to a tension rod is compressed on the counter swing jaw 6 side of a back frame 4 of the jaw crusher 1, and a tendon spring compression cylinder 23 for releasing a compression force is provided.

Abstract: The objective of this invention is to provide a method to adjust the position of a jaw crusher toggle block, and a device used for said method; wherein the said device can adjust the cavity width over a wide range, and can be applied to a wide range of jaw crushers, including large models, without itself having to be enlarged.

Abstract: Provided herein is a cantilevered swing jaw crushing apparatus comprising a main frame, two jaws mounted on the main frame for crushing material passing through the apparatus, means for driving the jaws in a crushing action and a bearing support, wherein the cantilevered swing jaw comprises an upper portion pivotally attached to the main frame and a lower portion for cooperating with the second jaw of the apparatus, an elbow being formed between the upper portion and the lower portion and wherein the bearing support is mounted on the main frame and bears against the elbow of the cantilevered swing jaw to support the swing jaw throughout the motion of the jaw. In a crushing apparatus according to the invention, forces applied to the cantilevered swing jaw are transferred via the bearing support to the main frame rather than to the pivot axis of the swing jaw.

Abstract: A jaw-type crusher for reducing the size of particulate material and which localizes the stress of operation, the crusher comprising a frame, a fixed jaw supported by the frame, an operatable jaw movably carried by the fixed jaw in opposition thereto and actuating means for imparting relative movement between jaws.

Abstract: A crushing apparatus has an hydraulic cylinder for actuating a toggle mechanism connected to a moveable jaw. The apparatus may have a main frame with an opening near the top of the frame for admitting material to be crushed. There is a first jaw connected to the frame on one side of the opening by a first pivotal connection near the top of the jaw. A first toggle mechanism is operatively associated with the first jaw. There may also be a second jaw connected to the frame on a side of the opening opposite the first jaw by a second pivotal connection near the bottom of the second jaw. A second toggle mechanism is operatively associated with the bottom mounted jaw. The crushing apparatus may have a toggle mount which is movable towards or away from the associated jaw.

Abstract: A slag breaker for breaking slags from furnaces has a stationary breaker plate and a rocking breaker plate defining therebetween a breaking chamber and provided on the opposing surfaces thereof with undulations. The size of the outlet of the breaking chamber is about 1/5 to 2/5 of that of the inlet of the breaking chamber. The size of the outlet of the breaking chamber is internationally changed cyclically and incrementally, by the operation of a hydraulic mechanism which is equipped with a specific dust proof means.

Abstract: A compression type crusher which is adapted to compressingly crush feed material in a crushing chamber formed between movable and stationary crusher plates, the crusher being characterized in that the crushing chamber is shaped such that at least one of the side walls of the crushing chamber defined by the movable and stationary crusher plates inclines away from a vertical line in an inlet region of the crushing chamber and approaches the vertical line in an outlet region of the crushing chamber.