Abstract: A method for treating a food product of vegetable origin, including the steps of pushing, by means of a pushing device, the food product within a treatment cavity. This is defined between an internal surface of a fixed hollow body, or stator, and an external surface having conical shape of a rotor, and has an inlet mouth through which the food product of vegetable origin is introduced within the same and an outlet mouth through which the treated vegetable food product exits the cavity. The treatment cavity has a size which decreases going from the inlet mouth to the outlet mouth. It is provided a rotation of the rotor within the stator about a rotation axis. The combination of the rotation and of the pushing that are carried out by the machines produce a partial crushing of the food product of vegetable origin within the treatment cavity.

Abstract: An eccentric assembly for use in a gyratory or cone crusher is provided. The gyratory or cone crusher includes a main shaft having a longitudinal extension along a central axis of the crusher, a head assembly including a crushing head provided with a first crushing shell, and a frame provided with a second crushing shell, wherein the first and second crushing shells between them define a crushing gap. The eccentric assembly is provided with an inner circumferential surface and an outer circumferential surface eccentrically arranged relative to the inner circumferential surface, wherein the inner circumferential surface of the eccentric assembly is arranged for being journalled to the main shaft so that the eccentric assembly is adapted to rotate about said central axis, and wherein the outer circumferential surface of the eccentric assembly is arranged for being journalled to the crushing head.

Abstract: The invention relates to a comminuting device including a cylinder casing which surrounds a comminuting chamber, in which several rotors can be operated independently from each other with individual drives, said rotors being driven by concentric shafts which are arranged concentrically to the central axis (z) of the comminuting chamber, said concentric shafts having a central shaft and at least one outer hollow shaft surrounding said central shaft. At least one lubricant line for connecting to a lubricant supply is arranged in the central shaft and/or in a shaft casing, the lubricant line being connected by at least one radial lubricant through guide to at least one bearing of the rotors.

Abstract: A gyratory crusher includes an eccentric having an inner slide bearing surface and an outer slide bearing surface, the inner slide bearing surface defining, together with an opposing slide bearing surface, an inner slide bearing. The outer slide bearing surface defines, together with another opposing slide bearing surface, an outer slide bearing. The eccentric is rotatably connected to a crusher frame so as to allow a rotation about an eccentric axis of rotation, which is fixed relative to the frame. The eccentric axis of rotation is defined by one of the inner and outer slide bearings. The inner slide bearing has a total height-to-diameter quotient (H1/D1) of less than 1.0.

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 gyratory cone crusher 10 includes a support frame 12 having a vertical axis X and a receiving formation 14 mounted rigidly in the frame 12, a central vertical axis of the receiving formation 14 being in line with vertical axis X. A crushing head 16 is slideably engaged with the receiving formation 14 and has a first, upwardly presented conical crushing surface 18. A crushing bowl 20 having a second, downwardly presented funnel-shaped second crushing surface 22 spaced apart from the first crushing surface 18 is mounted above the crushing head 16. The crushing bowl 20 is mounted in an eccentric housing 24 so that a central axis Z of the crushing bowl 20 is positioned at an angle oblique to vertical axis X.

Abstract: A central shaft for a gyratory crusher, which includes a crushing head on which a first crushing shell is mounted; a frame on which a second crushing shell is mounted, which second crushing shell defines, together with the first crushing shell, a crushing gap; and a driving device, which is arranged to rotate an eccentric about said central shaft and thereby to cause the crushing head to execute a gyratory movement for crushing of material that is introduced in the crushing gap. The central shaft has a cavity in which are accommodated an anti-reverse and a torque limiter, the anti-reverse and the torque limiter being adapted for connection to said crushing head for restricting spinning.

Abstract: A spider for use with a gyratory crusher. The spider includes spider arms each formed from two spaced flanges joined by a connecting web to define an open channel having an open top end. The configuration of the spider arms increases manufacturability and provides the required strength and rigidity for the spider. The channel formed in each spider arm is covered by a spider arm shield to reduce abrasive wear to the spider arm.

Abstract: A gyratory crusher includes a crushing head on which a first crushing shell is mounted, and a frame on which a second crushing shell is mounted. The crusher has a thrust bearing which is made up of horizontal bearing plates and which is located between a vertical shaft and a piston arranged vertically below the vertical shaft. The crusher further has a first space, which is adapted to receive a variable amount of pressurized liquid, the first space being defined by the piston and a piston housing formed in the frame, and a second space which is adapted to receive, by way of a duct, pressurized liquid from the first space, the second space being located between the vertical shaft and the piston and at least partly accommodated in an opening in at least one of the bearing plates. The first space and the second space are adapted, by the liquid, to transmit forces from the crushing head to the piston housing, in order that the load on the thrust bearing is relieved.

Abstract: A movable filter system is provided for moving one or more filters of a filter assembly between an operative position and a maintenance position. In one embodiment, a filter assembly is secured to a telescoping rod assembly so that it may be moved between operative and maintenance positions. Positioning the rod assembly vertically allows gravity to move the rod assembly to an extended position, and a winch and cable may be used to move the rod assembly to a retracted position. Keyways and channels may be used within the rods of the telescoping rod assembly so as to maintain rotational positioning of the filter assembly.

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 comprises a body and an annular outer shell, which is fixedly connected to the body about an essentially vertical center axis. A shaft member is arranged radially inside the outer shell to perform, during crushing, a swinging movement about the center axis. A crushing chamber forms between the outer shell and an annual inner shell arranged on the shaft member. A piston member is displaceable along the center axis and is arranged in a cylinder member belonging to the body. The upper end of the piston member supports, via an intermediate thrust bearing, a lower end of the shaft member. A transport duct for supplying to the thrust bearing a medium promoting the bearing function extends through the piston member and is defined upstream of the piston member by a transfer means. At least a part of the transfer means is displaceable relative to the piston member and at least a part is displaceable relative to the cylinder member.

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: The application presents an adjustable cone crusher which has a hydraulic cylinder-plunger-combination (15, 4) for adjusting the setting and supporting a main shaft at its bottom end. The combination contains a bypass channel (21), through which the pressure medium escapes from the cylinder when the combination has been extended by a certain distance. In this way the crushing cone is prevented from rising too much upwards.

Abstract: A hydraulic control system for a gyratory crusher has a hydraulically supported main shaft. An inlet line to the cylinder is provided with a pressure relief valve. When the pressure in the cylinder, e.g. because of a disturbance, exceeds the opening pressure of the relief valve, fluid flows from the cylinder through the pressure relief valve to the lubricating circuit of the crusher and further to the return line. The safety system of the crusher is simple, reliable, and quick.

Abstract: A gyratory crusher includes a bowl assembly with a concave crushing surface and a crusher head of conical shape which extends into the concave portion of the bowl assembly. A central crusher axis extends centrally through the bowl assembly. The crusher head is mounted with a central head axis at an angular deviation with respect to the central crusher axis to intersect the crusher axis at an apex. Crushing action is obtained by driving the crusher head to gyrate the angular offset of its central axis about the central crusher axis. The gyratory crusher has an adjustable stroke of gyration. Adjustability of the stroke is obtained by controllably varying the amount of angular deviation by which the crusher head gyrates about the central crusher axis.

Abstract: The invention relates to a gyratory crusher in which a piston surrounds a wabbler shaft or eccentric sleeve and the radial forces of the spindle shaft are transmitted to the frame of the crusher through the piston.

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: Flap carriers fold spanwise (about chordwise axes) into the wing but are moved down together through pivotal linkage; the flaps are protracted and retracted through pivoting of the carriers relative to each other on spanwise axes. On retraction, the entire assembly fits into the wing so that the flow determining contour thereof remains undisturbed.

Abstract: In a cone crusher comprising a breaking cone (1) arranged for being driven to effect a tumbler movement or pendulum movement within the interior of a hollow-conical breaking surface (2) of a stator (3), the gap width (16, 16') is adjustable by axial displacement of the breaking cone (1) and determinable by measuring the lifted position of the breaking cone (1) by means of a displacement pickup (21) acting on the breaking cone (1). An axle extension (6) is connected with the tapered end of the breaking cone (1) and is bearingly supported within a bearing (7) fixed on the stator (3) and allowing the tumbler movement or the pendulum movement, respectively, noting that the displacement pickup (21) acts on the axle extension (6).

Abstract: A bearing supporting system for cone crushers of the type which has a head center securely mounted on an upper portion of a main shaft for mounting a mantle thereon and has the main shaft supported by the eccentric drive shaft in radial direction, the support system including a self-aligning thrust bearing mounted on an intermediate portion of the mantle shaft, supporting the main shaft on the eccentric drive shaft through the thrust bearing.

Abstract: A cone crusher for crushing stones comprises an outer shroud housing a shaft driven of conical swinging motion at the middle portion whereof there is provided a crushing or milling cone, cooperating with a shroud conical ring to define an upward widening space therebetween, a rotating bush being provided for housing a hydraulic piston supporting, through an axial roller bearing, the bottom end of the shaft arranged substantially concentrical to the piston.

Abstract: Centerline of the pinion and gear is offset from the centerline of the bore in which the pinion bearing housing is contained. A change holds the bearing housing in operating position and is also operable to rotatably adjust the pinion housing, the O.D. of which is eccentric relative to its I.D. Thus rotation of the bearing housing within the bore effects the adjustment of the vertical height of the pinion relative to the driving gear.

Abstract: In a gyratory crusher the crusher head is mounted on a drive shaft which is driven by an eccentric. The eccentric is continually rotated to cause the head to gyrate for effecting the crushing of material. an antispin arrangement is provided to prevent rotation of the crusher head in the same direction as the eccentric under idling conditions or no load conditions. The antispin device includes a pair of ratchets one of which is coupled to the shaft and the other of which is formed on the end face of a piston which is held in the counterbore of the drive shaft by a spring. A rectangular torsion rod extends through the center of the piston into a clearance hole bored in the crusher head drive shaft. The top of the torsion rod is anchored in the spider cap of the crusher.

Abstract: In a crusher having a crusher head shaft which is adjustable under load in the vertical direction and passes through a drive eccentric, clearance must exist between the shaft and the inner eccentric bearing. Due to the constantly rotating crushing load which moves angularly in the same direction as the drive eccentric is rotating and relative to the shaft which is stationary or slowly rotating in a direction opposite to the direction in which the drive eccentric is rotating, the inner race of the inner bearing of the eccentric should be an interference fit on the shaft. If the inner race is not an interference fit on the shaft, rapid wear will occur on both the shaft and the bearing bore. To overcome these two opposing requirements of a loose fit for adjusting purposes and a tight fit for good bearing practice, a composite bushing assembly is provided.

Abstract: Eccentric assembly removal is accomplished by operation of the crusher head shaft piston exerting an upward pushing force on the eccentric assembly and simultaneously applying high pressure fluid to the eccentric outer bearing housing.

Abstract: An overload preventing device in crushers of the type having a crushing chamber with a conical crushing surface and a crusher head with a conical crushing surface being eccentrically rotatable about a shaft of the crusher, is of a simple and reliable construction and continuously varies the nip formed between the crushing surfaces as a protection against the crusher being overloaded.