Abstract: A cone crusher includes body installed on foundation with resilient dampers and having an outer cone and an inner cone. Unbalance weight is on the drive shaft of inner cone using a slide bushing, with center of gravity adjustable relative to rotation axis, slide damper of unbalance weight connected to transmission coupler, through which torque is transmitted. Transmission coupler is a disc coupler comprising a drive half-coupler, a driven half-coupler, and a floating disc between them. The driven half-coupler is rigidly connected to slide bushing, and the drive half-coupler, to gear rigidly connected to counterbalance weight. The drive half-coupler, gear and counterbalance weight are mounted on the slide bushing, and driving half-coupler, gear, counterbalance weight, and the slide bushing form one movable dynamic assembly, installed using a mounting disc, on fixed rotation axis, which rests upon flange rigidly fixed in the bottom part of body of the crusher.

Abstract: A gyratory crusher frame part and a gyratory crusher include a topshell and spider assembly configured to minimize stress concentrations. An annular flange is formed at the junction between a lower region of each spider arm and an upper region of the topshell. Optimization of loading force transfer and a reduction in stress concentration is achieved by positioning the spider arms radially inward relative to an outer circumferential perimeter of the flange.

Abstract: A gyratory crusher, including an outer crushing shell and an inner crushing shell forming between them a crushing chamber, the crushing chamber communicating with a discharge zone that forwards crushed material from the crushing chamber and out of the crusher. The inner crushing shell is supported on a crushing head. The outer crushing shell is supported on a crusher frame. At least one sealing arrangement is between the discharge zone and a working part zone in which at least one bearing for the crushing head to perform a gyratory movement relative to the crusher frame is arranged. The sealing arrangement includes a sealing surface, and a sealing member arranged to seal against the sealing surface and including an inner circumferential flexible sealing lip, an outer circumferential flexible sealing lip and at least one inlet for pressurized fluid to be supplied to an overpressure zone arranged between the inner and outer sealing lips and the sealing surface.

Abstract: A spider sleeve and seal apparatus for a gyratory crusher has upper and lower cylindrical sleeves disposed between the spider and a vertically slidable piston. Fixed o-rings are located between the sleeves and the spider, and moving seals are located in the piston. These seals prevent leakage from the hydraulic ring used to support the piston and shaft of the gyratory crusher.

Abstract: A crusher comprises a main shaft a portion of which is disposed in a bore of a rotatable eccentric shaft, the main shaft (1) having a central axis that is inclined with respect to the axis of rotation of the eccentric shaft, and a first crushing head attached to the main shaft and rotatable by the main shaft with respect to a second crushing head so that constrained stroke motion is effected between the first crushing head and the second crushing head. The inclination of the central axis of the main shaft is changed with respect to the axis of rotation of the eccentric shaft by a gear transmission comprising cog wheels, such that the magnitude of the constrained stroke motion changes.

Abstract: A bearing retainer apparatus for a gyratory crusher is comprised of a bearing having a ball, a shaft disposed within the ball, and a plate secured to the shaft. Further, a method of assembling a bearing retainer system for a gyratory crusher includes attaching a bearing retainer plate onto the shaft of the crusher using bearing retainer bolts such that the bearing is clamped onto the shaft.

Abstract: A gyratory crusher uses a new spider arm guard and rim liner arrangement. The spider arm guard and rim liner are retained on the spider by means of a dowel and recess system.

Abstract: A gyratory crusher uses a new head nut attachment apparatus. The gyratory crusher has a shell, a shaft disposed within the shell, a mantle covering a portion of the shaft, a head nut located above the mantle, and a sleeve between the head nut and the shaft. The sleeve is maintained in position on the shaft by means of a tapered contact surface between the sleeve and the shaft, and the head nut is threaded onto the sleeve.

Abstract: The machine is comprised of a main body (32), a bonnet (14) which rests on the upper frame of the main body (32) and a concave holder (66) threadably inserted into the bonnet (14). The bonnet (14) is maintained in intimate contact with the main body (32) by means of a plurality of tramp iron cylinders (18) while the concave holder (66) is screwed into the bonnet (14) by means of an adjusting gear (16) and matching pinion (58). The concave holder (66) is locked in position within the bonnet (14) by means of a plurality of locking cylinders (60) positively engaging a locking slide ring (64). A mantle (70) covered male conical member (28) is driven by a crown gear (36) and pinion (52) in an elliptical rotation within the confines of a concave die (68) thus crushing the raw rock on each near pass.

Abstract: A gyratory crusher uses a new spider arm guard and rim liner arrangement. The spider arm guard and rim liner are retained on the spider by means of a dowel and recess system.

Abstract: A variable throw eccentric cone crusher. The cone crusher comprises a frame, a crusher head supported on the frame for gyration about a first axis, a bowl supported on the frame in spaced relation to the crusher head, and a mechanism on the frame for varying the eccentricity of the gyration of the crusher head. An eccentric member engages the crusher head and is eccentrically pivotable about a second axis radially offset from the first axis. The eccentric member is adjustable to vary the eccentricity of the gyration of the crusher head.

Abstract: An eccentric cone crusher having multiple counterweights. More particularly, the present invention provides a cone crusher including a frame, a crusher head for eccentric rotation about an axis, an eccentric member supporting the crusher head and having a center of gravity off the axis of eccentric rotation, and at least two counterweights attached to the eccentric. Utilizing more than one counterweight permits greater flexibility in positioning the counterweights, and minimizes moments and other stresses on the apparatus.

Abstract: A vibrating cone crusher which crushes material between a cone and a frustoconical ring located therearound. An annular frame supports the ring and a device for generating circular vibrations in a horizontal plane. Tie rods connect the frame to a cone holder. Vertical vibration that disrupts crusher operation is reduced or neutralized by positioning the center of gravity of the cone, the cone holder, the frame, and items supported thereon adjacent the plane of vibratory forces.

Abstract: A bearing block mounting arrangement of a cone crusher in which the bearing block includes an upper block and a bottom block respectively covered on top and bottom sides of a spider bearing around a main shaft, the upper block and the bottom block each having an outward flange and a plurality of locating holes and screw holes alternatively arranged around the spider bearing, the locating holes on the outward flange of the upper block being respectively connected to the locating holes on the outward flange of the bottom block and respective locating holes on a locating block inside the cone crusher by screw bolts and nuts, and a plurality of adjustment screws respectively threaded into the screw holes on the upper block and the bottom block and stopped at top and bottom sides of the locating block for adjusting the gap between the upper block and the bottom block.

Abstract: A cone crusher includes outer and inner cones (2, 3) with a discharge slot (5) between them, a shaft (7) of the inner cone (3), a means for adjusting the size of the discharge slot (5) and a means for imparting gyrations to the inner cone (3). The means for adjusting the size of the discharge slot (5) is a reciprocation mechanism (12) and the means for imparting gyrations to the inner cone is an unbalanced vibrator (17).

Abstract: An inertia cone crusher comprises a housing having an outer cone and a spherical support of an inner cone which is installed concentrically with the outer cone. A cylindrical bearing bush carrying an unbalanced mass member is installed on the inner cone shaft and is connected to a power motor by means of a flexible link. The bush is connected to the housing by means of a spherical support, and for that purpose, an annular bore with a spherical surface is made in the housing, the bush has an annular outer projection on the end thereof facing the inner cone, and an annular "floating" end thrust bearing is provided between the annular projection and the spherical surface of the bore, the end thrust bearing engaging with its spherical surface the spherical surface of the bore.

Abstract: A gyratory crusher comprises a housing having arranged therein an adjustment ring with an upper support of a crushing cone provided with a ball joint fixed in position in a cross-piece of the adjustment ring. The crushing cone has a shaft pressed thereinto and inserted by its upper end to the ball joint for the ball joint to be capable of displacement along the shaft. The crushing cone is placed on a spherical surface of a thrust element which bears on a cup member to slide thereon. The lower shank of the shaft is provided with an accentric rotatable by a drive means.

Abstract: The object of the invention is a cone crusher comprising a shaft mounted in a frame for oscillating movement, and a rotor which is rotatably mounted on the shaft and adapted to be rotated on the shaft by means of a drive and which has an out-of-balance weight so that the rotation of the rotor in conjunction with centrifugal force sets the shaft in gyratory oscillating motion, while a conical crusher head carried by the shaft is caused to roll on the inner side of a crushing mantle carried by the frame. Characteristic of the invention is that the cone crusher is equipped with a movable counterweight which is caused by the drive to perform a circular movement about the shaft at an angular displacement of substantially 180.degree.

Abstract: An inertia cone crusher having a shell installed via elastic shock-absorbers on a base is provided with a crushing bowl, and a breaking head having a shaft mounted on a spherical support. An out-of-balance unit formed as a bearing bush is provided with an out-of-balance weight and a carrier disc and is installed on the shaft of the breaking head. A rod for mounting the out-of-balance unit on the breaking head has its lower end installed on the bearing bush. The upper end of the rod is installed in a bore of the shaft shank with a mounting clearance with respect to the rod end face and the out-of-balance unit is liftable and fixable in its upper position.

Abstract: A device for adjusting an inertia cone crusher discharge gap comprises an angle sensor responsive to deflection of the breaking head axis from the vertical and generating a signal used to control an actuator providing vertical displacement of a crushing bowl of the crusher with respect to the breaking head thereof to change the size of the discharge gap. The sensor is an induction-type sensor including inductance coils connected electrically in parallel, and mounted fixedly around the breaking head and uniformly distributed along a circle having the center on the vertical axis of the crusher, and at least one permanent magnet coupled mechanically with an out-of-balance weight inducing electrical signals in said inductance coils as the out-of-balance weight is rotating.

Abstract: A device for mounting the breaking cone of an inertia crusher having a crushing bowl and a breaking cone arranged within the crushing bowl comprises a shell, the top portion of which contains a spherical support provided with a central cylindrical hole to receive a shaft of the breaking cone, and in the bottom portion thereof, there is arranged a ball spindle interconnected with a bush carrying an out-of-balance weight on the outer surface thereof intended for placing the breaking cone shaft therewithin. The bush is of such a length that its upper end is disposed in the central cylindrical hole and enters it so far that the bush rests, when tilted, upon the wall of the central cylindrical hole. Also, an annular projection in the bottom portion of the shell serves as a support for the out-of-balance weight when the bush rests upon the wall of the cylindrical hole.

Abstract: The inertia cone crusher comprises a shell interconnected through vibration dampers to a crusher base and the shell carrying a crushing bowl which accommodates a breaking head. The shaft of the breaking head carrying an out-of-balance weight having its own rotation drive and axial support. The crusher shell also accommodates a countershaft which is a component of the out-of-balance weight drive. The shaft with one of its ends is movably connected (both axially and radially) to the driving member of the out-of-balance weight drive, whereas the other end of the countershaft is connected to the out-of-balance weight through an axially fixed ball spindle, whereby the latter serves as an axial support for the out-of-balance weight.