EP0833692B1 - Vibrating cone crusher - Google Patents

Vibrating cone crusher Download PDF

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Publication number
EP0833692B1
EP0833692B1 EP96922092A EP96922092A EP0833692B1 EP 0833692 B1 EP0833692 B1 EP 0833692B1 EP 96922092 A EP96922092 A EP 96922092A EP 96922092 A EP96922092 A EP 96922092A EP 0833692 B1 EP0833692 B1 EP 0833692B1
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EP
European Patent Office
Prior art keywords
cone
support
shaft
chassis
skirt
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Expired - Lifetime
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EP96922092A
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German (de)
French (fr)
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EP0833692A1 (en
Inventor
Alain Cordonnier
Renaud Evrard
Jean-François Andre
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F C B Aluminium En F C B Ciment
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F C B
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
    • B02C2/04—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis
    • B02C2/042—Moved by an eccentric weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2/00—Crushing or disintegrating by gyratory or cone crushers
    • B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
    • B02C2/04—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis
    • B02C2/047—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis and with head adjusting or controlling mechanisms

Definitions

  • the present invention relates to vibrating cone crushers in which the material is crushed between a cone and a frustoconical ring surrounding the cone, the axes of the cone and the ring being vertical, and comprising an annular frame carrying said ring, which is fixed in the central opening of the chassis, and a device capable of generating circular vibrations in a horizontal plane, a support for the cone, and several tie rods connecting the chassis and the support of the cone, the connections between the ends of the tie rods and the chassis, respectively, the support of the cone, being designed to allow relative horizontal movements of the chassis and the support; the assembly constituted by the chassis, the organs which it supports, the cone and its support, rest on a frame or on the ground by means of elastic members: springs or damping studs rubber.
  • the vibration setting device constituted by example by unbalanced trees with vertical axis, not only generates vibrations horizontal of the frame carrying the ring and of the cone support, when the mill is running, but also vertical vibrations whose amplitude increases from the center towards the periphery of the grinder.
  • These vertical vibrations have the harmful consequences of modifying the flow of materials in the grinding chamber, and generate stresses detrimental to the holding mechanical parts of the mill, these constraints due to vertical accelerations being all the more larger than the grinder is bigger; these vertical vibrations can also be transmitted to the building or foundations which is annoying and sometimes even dangerous.
  • These vibrations also make the process unstable (low frequency pulses of the passing flow and absorbed power) by coupling effect between the flow of materials in the chamber and vertical vibrations.
  • the object of the present invention is to eliminate these drawbacks by eliminating or less by appreciably reducing the vertical vibrations which disrupt the progress of these grinders.
  • the mill object of the present invention is characterized in that the center of gravity of the assembly constituted by the chassis and the organs which it supports, and the center of gravity of the cone and its support are found inside a fictitious sphere centered on the point defined by the intersection of the vertical axis of the cone with the plane of action of the vibratory forces when the device is at rest, and with a diameter equal to 15% of the maximum diameter of the cone.
  • the chassis comprises a skirt surrounding the support of the cone and possibly fitted with weights, and a heavy cap is fixed on the top of the cone.
  • the elastic members supporting the mill can be interposed between the bottom of the skirt and the frame or the foundations, the support of the cone being suspended from the frame by means tie rods. Other elastic members can be placed between the skirt and the support of the cone or between the latter and the frame or the foundations.
  • the elastic members supporting the mill can be placed between the support of the cone and the frame or the foundations, other elastic members being placed between the skirt and the cone support.
  • the cone is rotatably mounted on a vertical shaft fitted in its support.
  • it can be rotatably mounted, via bearings, on a sleeve mounted on the shaft so that it can slide along the latter.
  • the shaft and the sleeve will be supported, a sealed annular chamber being provided between the two shoulders and a channel drilled in the shaft allowing to bring a liquid under pressure in said chamber to lift the cone or evacuate it to allow the cone to descend.
  • the frame can consist of a bottomless tank in which the ring is kept by appropriate means and which is provided with an annular base on which the vibrating device, the skirt being fixed by its upper end on the edge of the base.
  • the vibration setting device will advantageously consist of shafts with unbalances with vertical axis mounted on said base, each shaft comprising two unbalances arranged on either side of the base so that the vibrational forces generated by the rotation trees are in a horizontal plane coincident with the median plane of the base or neighbor of it.
  • phase shift device constituted by a rotary actuator the body or rotary element of which is coupled directly to at least one of the unbalanced shafts another unbalance shaft being coupled to the rotary element or to the cylinder body, respectively, by a pulley and belt transmission.
  • the crusher shown in Figure 1 has a frame 10 consisting of a tank without bottom 12, with circular section and vertical axis, provided with a base 14, and by a fixed skirt 16 under the base, at the edge of it.
  • the skirt rests on the foundations via studs rubber shock absorbers 18 which support the crusher.
  • Weights 79 can be attached under the skirt.
  • a ring 22 is mounted coaxially inside the tank. It constitutes a room of interchangeable wear which is held in the tank by a flange and bolts.
  • the element 24 called "cone”, which cooperates with the ring 22, is in fact constituted by a wear part 28 whose general shape is that of a truncated cone of variable slope, mounted on a support 30 of the same shape and held thereon by a flange and screws; it is overcome a hat 32.
  • the cone is mounted on a shouldered sleeve 34 by means of rolling bearings so that it can rotate freely around its axis.
  • the sleeve 34 is itself mounted sliding on a shouldered shaft 38.
  • the vertical axis common to the cone, the sleeve and the shaft is coincident with the axis of the ring 22 when the mill is at rest.
  • Seals are placed between the sleeve and the shaft, above and below shoulders, so that a sealed chamber 40 is formed between the latter.
  • a channel 42 drilled in the shaft connects this chamber to a source of pressurized liquid. In admitting liquid into the chamber or by evacuating it modifies the height position of the cone with respect to the ring and, consequently, the particle size of the ground product.
  • the support 44 of the cone is constituted by a hub 46 in which the shaft 38 is fitted and a ferrule 48 connected to the hub by vertical ribs 50; the space between the hub and the ferrule allows the evacuation of the ground material. It is suspended from chassis 10 by via connecting rods or tie rods 52, the ends of which are connected by articulations to the base 14 of the chassis and an annular plate 54 secured to the ferrule 48.
  • a single tie rod was shown in the drawing but it is obvious that the mill has several tie rods, for example four, regularly distributed around the axis of the mill.
  • the plate 54 is also linked to the skirt 16 by rubber shock absorbing pads 55 which take up at least part of the weight of the cone and its support.
  • the seal between the chassis 10 and the support of the cone 44 is ensured by a metal skirt 51 and a deformable seal 53.
  • the seal between the support 44 and the sleeve 34 is provided by a deformable seal 57.
  • the shredder's vibration device consists of several unbalanced shafts vertical 56 mounted on the chassis 10; only one of them has been shown in the drawing.
  • Each shaft 56 is mounted on the base 14 by means of rolling bearings and comprises two unbalanced 58 disposed on either side of the base; thanks to this arrangement the forces exerted by the unbalances on the chassis 10, when the shafts 56 are rotated, are located in a horizontal plane P-P which is very close to the median plane of the base and could be confused with this one.
  • One of the unbalanced shafts is coupled, by means of a double gimbal extension, a motor shaft 60; the other unbalanced trees are driven from the first by a mechanical transmission system with pulleys and belts which incorporates a phase shift to adjust the angular offset of a group of unbalanced shafts relative to to others to modify the amplitude of the resultant of the centrifugal forces generated by the rotation of unbalanced trees.
  • a mechanical transmission system with pulleys and belts which incorporates a phase shift to adjust the angular offset of a group of unbalanced shafts relative to to others to modify the amplitude of the resultant of the centrifugal forces generated by the rotation of unbalanced trees.
  • the mill has four shafts with vertical unbalances arranged at the vertices of a square as described in document WO-A-9421380.
  • the unbalanced shaft diagonally opposite the unbalanced shaft 56 directly coupled the motor shaft 60 is rotated by means of a belt 63 passing over pulleys 64 keyed on these two unbalanced shafts and on idler pulleys mounted madly on the two other unbalanced trees.
  • the rotary actuator shown in Figure 2 has a cylindrical body 69 closed at its ends by bottoms 70 and 71.
  • a shaft 72 is arranged coaxially in the body of the jack ; it crosses the bottom 70 in which it is mounted by means of a bearing which is capable of resume the axial forces to which the tree can be subjected to prevent its movements axial with respect to the cylinder body.
  • a socket 73 is keyed onto the shaft.
  • a piston 74 is mounted in the body of the jack; he comprises a skirt housed between the wall of the body of the jack and the bush 73.
  • a roller 75 mounted on an axis fixed on the cylinder body is received in a helical groove 76 machined on the piston of such that any axial displacement of the piston in the cylinder body is accompanied by a rotation of the piston relative to the latter.
  • a roller 77 mounted on an axis fixed on the piston skirt is housed in a helical groove 78 machined in the bushing, so that any axial displacement of the piston in the cylinder body causes the shaft 72 to rotate.
  • the cylinder body is fixed on the sleeve 67 and the outer end of the shaft is fitted into a bore of the shaft 56 and keyed onto the latter.
  • the cylinder is supplied with pressurized oil via a rotary joint and at through a three-position valve which supplies one or other of its chambers, to rotate the shaft 72 in one direction or the other, and isolate the two chambers by holding it there pressurized oil to prevent any rotation of the shaft relative to the cylinder body and the make solidarity with the latter.
  • a feed hopper 62 is fixed to the tank 12.
  • the different parts of the mill are dimensioned so that the center of gravity of the assembly constituted by the chassis 10 and the members which it supports, in particular the ring 22 and the unbalanced shafts 56, and the center of gravity of the cone 24 and its support 44 are located in the plane of the vibratory forces P-P or in the immediate vicinity of this plane. It is, in particular, in appropriately choosing the dimensions and the mass of the skirt 16, the weights 79 and the cap 32 that this condition is fulfilled. More specifically, these centers of gravity remain at inside a virtual sphere centered on point 0 defined by the intersection of the vertical axis of the cone with the P-P plane when the device is at rest, and whose diameter is equal to 15% of the maximum diameter D of the cone, for all operating conditions of the mill.
  • the maximum diameter D is that of the useful part of the cone, that is to say of the part which is actually used for grinding. As seen in Figure 1, the cone can extend downward by a portion of diameter greater than D which should not be taken into account.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Cosmetics (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

PCT No. PCT/FR96/00879 Sec. 371 Date Apr. 6, 1998 Sec. 102(e) Date Apr. 6, 1998 PCT Filed Jun. 11, 1996 PCT Pub. No. WO96/41680 PCT Pub. Date Dec. 27, 1996A 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.

Description

La présente invention concerne les broyeurs vibrants à cône dans lesquels la matière est broyée entre un cône et un anneau tronconique entourant le cône, les axes du cône et de l'anneau étant verticaux, et comprenant un châssis annulaire portant ledit anneau, qui est fixé dans l'ouverture centrale du châssis, et un dispositif apte à engendrer des vibrations circulaires dans un plan horizontal, un support pour le cône, et plusieurs tirants reliant le châssis et le support du cône, les liaisons entre les extrémités des tirants et le châssis, respectivement, le support du cône, étant conçus pour autoriser des mouvements relatifs horizontaux du châssis et du support ; l'ensemble constitué par le châssis, les organes qu'il supporte, le cône et son support, reposent sur un bâti ou sur le sol par l'intermédiaire d'organes élastiques : ressorts ou plots amortisseurs en caoutchouc.The present invention relates to vibrating cone crushers in which the material is crushed between a cone and a frustoconical ring surrounding the cone, the axes of the cone and the ring being vertical, and comprising an annular frame carrying said ring, which is fixed in the central opening of the chassis, and a device capable of generating circular vibrations in a horizontal plane, a support for the cone, and several tie rods connecting the chassis and the support of the cone, the connections between the ends of the tie rods and the chassis, respectively, the support of the cone, being designed to allow relative horizontal movements of the chassis and the support; the assembly constituted by the chassis, the organs which it supports, the cone and its support, rest on a frame or on the ground by means of elastic members: springs or damping studs rubber.

On a constaté que dans ces broyeurs le dispositif de mise en vibrations, constitué par exemple par des arbres à balourds à axe vertical, engendre non seulement des vibrations horizontales du châssis portant l'anneau et du support de cône, lorsque le broyeur est en marche, mais également des vibrations verticales dont l'amplitude croit du centre vers la périphérie du broyeur. Ces vibrations verticales ont pour conséquences néfastes de modifier l'écoulement des matériaux dans la chambre de broyage, et d'engendrer des contraintes préjudiciables à la tenue mécanique des pièces du broyeur, ces contraintes dues aux accélérations verticales étant d'autant plus importantes que le broyeur est plus gros ; ces vibrations verticales peuvent aussi être transmises au bâti ou aux fondations ce qui est gênant et parfois même dangereux. Ces vibrations rendent également le procédé instable (pulsations à basse fréquence du débit passant et de la puissance absorbée) par effet de couplage entre l'écoulement des matériaux dans la chambre et les vibrations verticales.It has been found that in these grinders the vibration setting device, constituted by example by unbalanced trees with vertical axis, not only generates vibrations horizontal of the frame carrying the ring and of the cone support, when the mill is running, but also vertical vibrations whose amplitude increases from the center towards the periphery of the grinder. These vertical vibrations have the harmful consequences of modifying the flow of materials in the grinding chamber, and generate stresses detrimental to the holding mechanical parts of the mill, these constraints due to vertical accelerations being all the more larger than the grinder is bigger; these vertical vibrations can also be transmitted to the building or foundations which is annoying and sometimes even dangerous. These vibrations also make the process unstable (low frequency pulses of the passing flow and absorbed power) by coupling effect between the flow of materials in the chamber and vertical vibrations.

Le but de la présente invention est d'éliminer ces inconvénients en supprimant ou du moins en réduisant de façon sensible les vibrations verticales qui perturbent la marche de ces broyeurs.The object of the present invention is to eliminate these drawbacks by eliminating or less by appreciably reducing the vertical vibrations which disrupt the progress of these grinders.

Le broyeur objet de la présente invention est caractérisé en ce que le centre de gravité de l'ensemble constitué par le châssis et les organes qu'il supporte, et le centre de gravité du cône et de son support se trouvent à l'intérieur d'une sphère fictive centrée sur le point défini par l'intersection de l'axe vertical du cône avec le plan d'action des forces vibratoires quand l'appareil est au repos, et d'un diamètre egal à 15 % du diamètre maximum du cône. En réalisant cette condition, on évite d'exercer sur le châssis portant l'anneau et sur le support du cône des couples de basculement engendrant des vibrations verticales.The mill object of the present invention is characterized in that the center of gravity of the assembly constituted by the chassis and the organs which it supports, and the center of gravity of the cone and its support are found inside a fictitious sphere centered on the point defined by the intersection of the vertical axis of the cone with the plane of action of the vibratory forces when the device is at rest, and with a diameter equal to 15% of the maximum diameter of the cone. By realizing this condition, one avoids exerting on the chassis carrying the ring and on the support of the cone of the couples tilting generating vertical vibrations.

Suivant une forme de réalisation préférée, le châssis comporte une jupe entourant le support du cône et éventuellement munie de masselottes, et un chapeau pesant est fixé sur le sommet du cône. Les organes élastiques supportant le broyeur peuvent être interposés entre le bas de la jupe et le bâti ou les fondations, le support du cône étant suspendu au châssis au moyen des tirants. D'autres organes élastiques peuvent être placés entre la jupe et le support du cône ou entre ce dernier et le bâti ou les fondations.According to a preferred embodiment, the chassis comprises a skirt surrounding the support of the cone and possibly fitted with weights, and a heavy cap is fixed on the top of the cone. The elastic members supporting the mill can be interposed between the bottom of the skirt and the frame or the foundations, the support of the cone being suspended from the frame by means tie rods. Other elastic members can be placed between the skirt and the support of the cone or between the latter and the frame or the foundations.

En variante, les organes élastiques supportant le broyeur peuvent être placés entre le support du cône et le bâti ou les fondations, d'autres organes élastiques étant placés entre la jupe et le support du cône.Alternatively, the elastic members supporting the mill can be placed between the support of the cone and the frame or the foundations, other elastic members being placed between the skirt and the cone support.

Le cône est monté rotatif sur un arbre vertical emmanché dans son support. Pour permettre le réglage en hauteur du cône, celui-ci peut être monté rotatif, par l'intermédiaire de paliers, sur un manchon monté sur l'arbre de façon à pouvoir coulisser le long de celui-ci. De préférence, l'arbre et le manchon seront épaulés, une chambre annulaire étanche étant ménagée entre les deux épaulements et un canal percé dans l'arbre permettant d'amener un liquide sous pression dans ladite chambre pour soulever le cône ou l'évacuer pour laisser redescendre le cône.The cone is rotatably mounted on a vertical shaft fitted in its support. For allow height adjustment of the cone, it can be rotatably mounted, via bearings, on a sleeve mounted on the shaft so that it can slide along the latter. Of preferably, the shaft and the sleeve will be supported, a sealed annular chamber being provided between the two shoulders and a channel drilled in the shaft allowing to bring a liquid under pressure in said chamber to lift the cone or evacuate it to allow the cone to descend.

Le châssis peut être constitué par une cuve sans fond dans laquelle l'anneau est maintenu par des moyens appropriés et qui est munie d'une embase annulaire sur laquelle est monté le dispositif de mise en vibrations, la jupe étant fixée par son extrémité supérieure sur le bord de l'embase. Le dispositif de mise en vibrations sera avantageusement constitué par des arbres à balourds à axe vertical monté sur ladite embase, chaque arbre comportant deux balourds disposés de part et d'autre de l'embase de telle sorte que les forces vibratoires engendrées par la rotation des arbres se trouvent dans un plan horizontal confondu avec le plan médian de l'embase ou voisin de celui-ci. Il pourra comporter un dispositif de déphasage constitué par un vérin rotatif dont le corps ou l'élément rotatif sera accouplé directement à l'un des arbres à balourds, au moins un autre arbre à balourds étant accouplé à l'élément rotatif ou au corps du vérin, respectivement, par une transmission à poulies et courroie.The frame can consist of a bottomless tank in which the ring is kept by appropriate means and which is provided with an annular base on which the vibrating device, the skirt being fixed by its upper end on the edge of the base. The vibration setting device will advantageously consist of shafts with unbalances with vertical axis mounted on said base, each shaft comprising two unbalances arranged on either side of the base so that the vibrational forces generated by the rotation trees are in a horizontal plane coincident with the median plane of the base or neighbor of it. It may include a phase shift device constituted by a rotary actuator the body or rotary element of which is coupled directly to at least one of the unbalanced shafts another unbalance shaft being coupled to the rotary element or to the cylinder body, respectively, by a pulley and belt transmission.

La description qui suit se réfère aux dessins l'accompagnant qui montrent, à titre d'exemple non limitatif, une forme de réalisation de l'invention et sur lesquels

  • La figure 1 est une vue en coupe verticale d'un broyeur vibrant à cône réalisé conformément à l'invention ; et
  • La figure 2 est une vue en coupe d'un vérin rotatif constituant le dispositif de déphasage du système générateur de vibrations.
    • The following description refers to the accompanying drawings which show, by way of nonlimiting example, an embodiment of the invention and on which
  • Figure 1 is a vertical sectional view of a vibrating cone crusher produced in accordance with the invention; and
  • Figure 2 is a sectional view of a rotary actuator constituting the phase shift device of the vibration generator system.

    • Le broyeur représenté sur la figure 1 comporte un châssis 10 constitué par une cuve sans fond 12, à section circulaire et à axe vertical, munie d'une embase 14, et par une jupe 16 fixée sous l'embase, au bord de celle-ci. La jupe repose sur les fondations par l'intermédiaire de plots amortisseurs en caoutchouc 18 qui supportent le broyeur. Des masselottes 79 peuvent être fixées sous la jupe.The crusher shown in Figure 1 has a frame 10 consisting of a tank without bottom 12, with circular section and vertical axis, provided with a base 14, and by a fixed skirt 16 under the base, at the edge of it. The skirt rests on the foundations via studs rubber shock absorbers 18 which support the crusher. Weights 79 can be attached under the skirt.

    Un anneau 22 est monté coaxialement à l'intérieur de la cuve. Il constitue une pièce d'usure interchangeable qui est maintenue dans la cuve par une bride et des boulons.A ring 22 is mounted coaxially inside the tank. It constitutes a room of interchangeable wear which is held in the tank by a flange and bolts.

    L'élément 24 appelé "cône", qui coopère avec l'anneau 22, est en fait constitué par une pièce d'usure 28 dont la forme générale est celle d'un tronc de cône à pente variable, montée sur un support 30 de même forme et maintenue sur celui-ci par une bride et des vis ; il est surmonté d'un chapeau 32.The element 24 called "cone", which cooperates with the ring 22, is in fact constituted by a wear part 28 whose general shape is that of a truncated cone of variable slope, mounted on a support 30 of the same shape and held thereon by a flange and screws; it is overcome a hat 32.

    Le cône est monté sur un manchon épaulé 34 par l'intermédiaire de paliers à roulements de façon à pouvoir tourner librement autour de son axe. Le manchon 34 est lui-même monté coulissant sur un arbre épaulé 38. L'axe vertical commun au cône, au manchon et à l'arbre est confondu avec l'axe de l'anneau 22 lorsque le broyeur est au repos.The cone is mounted on a shouldered sleeve 34 by means of rolling bearings so that it can rotate freely around its axis. The sleeve 34 is itself mounted sliding on a shouldered shaft 38. The vertical axis common to the cone, the sleeve and the shaft is coincident with the axis of the ring 22 when the mill is at rest.

    Des joints d'étanchéité sont placés entre le manchon et l'arbre, au-dessus et au-dessous des épaulements, de sorte qu'une chambre étanche 40 est ménagée entre ces derniers. Un canal 42 percé dans l'arbre permet de relier cette chambre à une source de liquide sous pression. En admettant du liquide dans la chambre ou en l'évacuant on modifie la position en hauteur du cône par rapport à l'anneau et, par conséquent, la granulométrie du produit broyé.Seals are placed between the sleeve and the shaft, above and below shoulders, so that a sealed chamber 40 is formed between the latter. A channel 42 drilled in the shaft connects this chamber to a source of pressurized liquid. In admitting liquid into the chamber or by evacuating it modifies the height position of the cone with respect to the ring and, consequently, the particle size of the ground product.

    Le support 44 du cône est constitué par un moyeu 46 dans lequel l'arbre 38 est emmanché et une virole 48 reliée au moyeu par des nervures verticales 50 ; l'espace aménagé entre le moyeu et la virole permet l'évacuation des matières broyées. Il est suspendu au châssis 10 par l'intermédiaire de bielles ou tirants 52 dont les extrémités sont reliées par des articulations à l'embase 14 du châssis et à un plateau annulaire 54 solidaire de la virole 48. Un seul tirant a été représenté sur le dessin mais il est évident que le broyeur comporte plusieurs tirants, par exemple quatre, régulièrement répartis autour de l'axe du broyeur. Le plateau 54 est par ailleurs lié à la jupe 16 par des plots amortisseurs en caoutchouc 55 qui reprennent au moins une partie du poids du cône et de son support. L'étanchéité entre le châssis 10 et le support du cône 44 est assurée par une jupe métallique 51 et un joint déformable 53. L'étanchéité entre le support 44 et le manchon 34 est assurée par un joint déformable 57.The support 44 of the cone is constituted by a hub 46 in which the shaft 38 is fitted and a ferrule 48 connected to the hub by vertical ribs 50; the space between the hub and the ferrule allows the evacuation of the ground material. It is suspended from chassis 10 by via connecting rods or tie rods 52, the ends of which are connected by articulations to the base 14 of the chassis and an annular plate 54 secured to the ferrule 48. A single tie rod was shown in the drawing but it is obvious that the mill has several tie rods, for example four, regularly distributed around the axis of the mill. The plate 54 is also linked to the skirt 16 by rubber shock absorbing pads 55 which take up at least part of the weight of the cone and its support. The seal between the chassis 10 and the support of the cone 44 is ensured by a metal skirt 51 and a deformable seal 53. The seal between the support 44 and the sleeve 34 is provided by a deformable seal 57.

    Le dispositif de mise en vibrations du broyeur est constitué par plusieurs arbres à balourds verticaux 56 montés sur le châssis 10 ; un seul d'entre eux a été représenté sur le dessin. Chaque arbre 56 est monté sur l'embase 14 par l'intermédiaire de paliers à roulements et comporte deux balourds 58 disposés de part et d'autre de l'embase ; grâce à cette disposition les forces exercées par les balourds sur le châssis 10, lorsque les arbres 56 sont entraínés en rotation, sont situées dans un plan horizontal P-P qui est très voisin du plan médian de l'embase et pourrait être confondu avec celui-ci.The shredder's vibration device consists of several unbalanced shafts vertical 56 mounted on the chassis 10; only one of them has been shown in the drawing. Each shaft 56 is mounted on the base 14 by means of rolling bearings and comprises two unbalanced 58 disposed on either side of the base; thanks to this arrangement the forces exerted by the unbalances on the chassis 10, when the shafts 56 are rotated, are located in a horizontal plane P-P which is very close to the median plane of the base and could be confused with this one.

    L'un des arbres à balourds est accouplé, par l'intermédiaire d'une allonge à double cardan, à un arbre moteur 60 ; les autres arbres à balourds sont entraínés à partir du premier par un système de transmission mécanique à poulies et courroies auquel est incorporé un dispositif de déphasage permettant de régler le décalage angulaire d'un groupe d'arbres à balourds par rapport aux autres pour modifier l'amplitude de la résultante des forces centrifuges engendrées par la rotation des arbres à balourds. Un tel système est décrit dans les documents FR-A-2687080 et WO-A-9421380.One of the unbalanced shafts is coupled, by means of a double gimbal extension, a motor shaft 60; the other unbalanced trees are driven from the first by a mechanical transmission system with pulleys and belts which incorporates a phase shift to adjust the angular offset of a group of unbalanced shafts relative to to others to modify the amplitude of the resultant of the centrifugal forces generated by the rotation of unbalanced trees. Such a system is described in documents FR-A-2687080 and WO-A-9421380.

    Dans une forme de réalisation décrite à titre d'exemple, le broyeur comporte quatre arbres à balourds verticaux disposés aux sommets d'un carré comme décrit dans le document WO-A-9421380. L'arbre à balourds diagonalement opposé à l'arbre à balourds 56 directement accouplé à l'arbre moteur 60 est entraíné en rotation au moyen d'une courroie 63 passant sur des poulies 64 clavetées sur ces deux arbres à balourds et sur des poulies de renvoi montées folles sur les deux autres arbres à balourds. Ces derniers sont entraínés en rotation au moyen d'une seconde courroie 65 passant sur deux poulies clavetées sur ces arbres, sur une poulie 66 clavetée sur un manchon 67 solidaire du corps d'un vérin rotatif 68 monté sur l'arbre 56, et sur une poulie de renvoi montée folle sur le quatrième arbre à balourd.In an embodiment described by way of example, the mill has four shafts with vertical unbalances arranged at the vertices of a square as described in document WO-A-9421380. The unbalanced shaft diagonally opposite the unbalanced shaft 56 directly coupled the motor shaft 60 is rotated by means of a belt 63 passing over pulleys 64 keyed on these two unbalanced shafts and on idler pulleys mounted madly on the two other unbalanced trees. These are rotated by means of a second belt 65 passing over two pulleys keyed onto these shafts, over a pulley 66 keyed onto a sleeve 67 integral with the body of a rotary actuator 68 mounted on the shaft 56, and on a pulley of return mounted mad on the fourth unbalance shaft.

    Le vérin rotatif représenté sur la figure 2 comporte un corps cylindrique 69 fermé à ses extrémités par des fonds 70 et 71. Un arbre 72 est disposé coaxialement dans le corps du vérin ; il traverse le fond 70 dans lequel il est monté par l'intermédiaire d'un palier qui est capable de reprendre les efforts axiaux auxquels l'arbre peut être soumis pour interdire ses déplacements axiaux par rapport au corps du vérin.The rotary actuator shown in Figure 2 has a cylindrical body 69 closed at its ends by bottoms 70 and 71. A shaft 72 is arranged coaxially in the body of the jack ; it crosses the bottom 70 in which it is mounted by means of a bearing which is capable of resume the axial forces to which the tree can be subjected to prevent its movements axial with respect to the cylinder body.

    Une douille 73 est clavetée sur l'arbre. Un piston 74 est monté dans le corps du vérin ; il comporte une jupe logée entre la paroi du corps du vérin et la douille 73. Un galet 75 monté sur un axe fixé sur le corps du vérin est reçu dans une rainure hélicoïdale 76 usinée sur le piston de telle sorte que tout déplacement axial du piston dans le corps du vérin s'accompagne d'une rotation du piston par rapport à ce dernier. De même, un galet 77 monté sur un axe fixé sur la jupe du piston est logé dans une rainure hélicoïdale 78 usinée dans la douille, de telle sorte que tout déplacement axial du piston dans le corps du vérin provoque la rotation de l'arbre 72. Les sens des rainures 76 et 78 sont choisis pour que les rotations du piston et de l'arbre s'ajoutent. En admettant un fluide sous pression dans l'une ou l'autre chambre du vérin, on provoque donc la rotation de l'arbre 72 dans un sens ou dans l'autre par rapport au corps du vérin. Des joints d'étanchéité sont montés sur le piston et sur l'arbre, à sa traversée du fond 70.A socket 73 is keyed onto the shaft. A piston 74 is mounted in the body of the jack; he comprises a skirt housed between the wall of the body of the jack and the bush 73. A roller 75 mounted on an axis fixed on the cylinder body is received in a helical groove 76 machined on the piston of such that any axial displacement of the piston in the cylinder body is accompanied by a rotation of the piston relative to the latter. Similarly, a roller 77 mounted on an axis fixed on the piston skirt is housed in a helical groove 78 machined in the bushing, so that any axial displacement of the piston in the cylinder body causes the shaft 72 to rotate. direction of the grooves 76 and 78 are chosen so that the rotations of the piston and of the shaft are added. In admitting a fluid under pressure in one or the other chamber of the jack, one thus causes the rotation of the shaft 72 in one direction or the other relative to the body of the jack. Seals are mounted on the piston and on the shaft, at its crossing from the bottom 70.

    Au lieu d'utiliser un galet et une rainure hélicoïdale pour transformer les mouvements de translation du piston en mouvements de rotation, on pourrait usiner sur le piston et l'arbre des dentures hélicoïdales en prise avec des couronnes dentées fixées sur le corps du vérin et la jupe du piston, respectivement.Instead of using a roller and a helical groove to transform the movements of translation of the piston in rotational movements, we could machine on the piston and the shaft helical teeth in engagement with toothed crowns fixed on the cylinder body and the skirt of the piston, respectively.

    Le corps du vérin est fixé sur le manchon 67 et l'extrémité extérieure de l'arbre est emmanchée dans un alésage de l'arbre 56 et clavetée sur ce dernier.The cylinder body is fixed on the sleeve 67 and the outer end of the shaft is fitted into a bore of the shaft 56 and keyed onto the latter.

    Le vérin est alimenté en huile sous pression par l'intermédiaire d'un joint rotatif et à travers une vanne à trois positions qui permet d'alimenter l'une ou l'autre de ses chambres, pour faire tourner l'arbre 72 dans un sens ou dans l'autre, et d'isoler les deux chambres en y maintenant de l'huile sous pression pour interdire toute rotation de l'arbre par rapport au corps du vérin et le rendre solidaire de ce dernier.The cylinder is supplied with pressurized oil via a rotary joint and at through a three-position valve which supplies one or other of its chambers, to rotate the shaft 72 in one direction or the other, and isolate the two chambers by holding it there pressurized oil to prevent any rotation of the shaft relative to the cylinder body and the make solidarity with the latter.

    En marche, la vanne étant en position verrouillage (chambres du vérin isolées), tous les arbres à balourd sont entraínés en rotation à la même vitesse et l'amplitude de la force de vibration résultante dépend des positions angulaires relatives des arbres à balourds. Pour modifier cette amplitude on commande, au moyen de la vanne, la rotation de l'arbre 72 du vérin ce qui provoque une rotation relative des deux arbres d'un groupe par rapport à ceux de l'autre ; ce réglage peut être fait en marche.In operation, the valve being in the locking position (cylinder chambers isolated), all unbalance shafts are rotated at the same speed and the amplitude of the force of resulting vibration depends on the relative angular positions of the unbalanced trees. For modify this amplitude we control, by means of the valve, the rotation of the shaft 72 of the jack which causes a relative rotation of the two trees of a group compared to those of the other ; this setting can be made on the fly.

    Une trémie d'alimentation 62 est fixée sur la cuve 12.A feed hopper 62 is fixed to the tank 12.

    Les différentes pièces du broyeur sont dimensionnées pour que le centre de gravité de l'ensemble constitué par le châssis 10 et les organes qu'il supporte, notamment l'anneau 22 et les arbres à balourds 56, et le centre de gravité du cône 24 et de son support 44 se trouvent dans le plan des forces vibratoires P-P ou au voisinage immédiat de ce plan. C'est, en particulier, en choisissant convenablement les dimensions et la masse de la jupe 16, des masselottes 79 et du chapeau 32 que l'on réalise cette condition. Plus précisément, ces centres de gravité restent à l'intérieur d'une sphère virtuelle centrée sur le point 0 défini par l'intersection de l'axe vertical du cône avec le plan P-P quand l'appareil est au repos, et dont le diamètre est égal à 15 % du diamètre maximum D du cône, pour toutes conditions de marche du broyeur. Comme on l'a expliqué plus haut, cette disposition permet de supprimer les couples de basculement et, par conséquent, les vibrations verticales. Il faut noter que le diamètre maximum D est celui de la partie utile du cône, c'est-à-dire de la partie qui est effectivement utilisée pour le broyage. Comme on le voit sur la figure 1, le cône peut se prolonger vers le bas par une partie de diamètre supérieur à D qui ne doit pas être prise en considération. The different parts of the mill are dimensioned so that the center of gravity of the assembly constituted by the chassis 10 and the members which it supports, in particular the ring 22 and the unbalanced shafts 56, and the center of gravity of the cone 24 and its support 44 are located in the plane of the vibratory forces P-P or in the immediate vicinity of this plane. It is, in particular, in appropriately choosing the dimensions and the mass of the skirt 16, the weights 79 and the cap 32 that this condition is fulfilled. More specifically, these centers of gravity remain at inside a virtual sphere centered on point 0 defined by the intersection of the vertical axis of the cone with the P-P plane when the device is at rest, and whose diameter is equal to 15% of the maximum diameter D of the cone, for all operating conditions of the mill. As we have explained above, this arrangement makes it possible to eliminate the tilting torques and, by Therefore, the vertical vibrations. Note that the maximum diameter D is that of the useful part of the cone, that is to say of the part which is actually used for grinding. As seen in Figure 1, the cone can extend downward by a portion of diameter greater than D which should not be taken into account.

    D'autres dispositions pourraient être adoptées pour supporter le broyeur. On pourrait par exemple faire reposer le support du cône sur le sol ou les fondations, par l'intermédiaire de plots élastiques amortisseurs, le châssis et sa charge reposant soit directement sur le sol ou les fondations, comme dans la forme de réalisation décrite ci-dessus, soit sur le support du cône, par l'intermédiaire de plots analogues aux plots 18 ou 55.Other provisions could be adopted to support the mill. We could by example rest the support of the cone on the ground or the foundations, by means of studs elastic shock absorbers, the chassis and its load resting either directly on the ground or foundations, as in the embodiment described above, either on the support of the cone, by through studs similar to studs 18 or 55.

    Claims (10)

    1. Vibratory cone crusher in which the material is crushed between a cone (24) and a ring (22) surrounding the cone (24), the axes of the cone (24) and of the ring (22) being vertical, and comprising an annular chassis (10) bearing said ring (22), and a device (56 to 58) capable of generating circular vibrations in a horizontal plane, a support (44) for the cone (24) and a number of tie rods (52) connecting the chassis (10) and the support (44) of the cone, the connections between the ends of the tie rods (52) and the chassis (10) and the support (44) of the cone (24), respectively, being designed to permit horizontal relative movements of the chassis (10) and of the support (44), and the whole of the crusher resting on the floor or foundations via elastic members (18), characterised in that the centre of gravity of the annular chassis (10) bearing said ring (22) and the vibration-generating device (56 to 58) and the centre of gravity of the cone (24) and of its support (44) are located inside a sphere the centre (O) of which is located at the point defined by the intersection of the axis of the cone with the plane (P-P) of the vibratory forces when the apparatus is at rest, and the diameter of which is equal to 15% of the maximum diameter (D) of the cone.
    2. Crusher according to claim 1, characterised in that the chassis (10) comprises a skirt (16) surrounding the support (44) of the cone (24) and said elastic members (18) are placed between the bottom of the skirt and the floor or the foundations.
    3. Crusher according to claim 1, characterised in that the chassis (10) comprises a skirt (16) surrounding the support (44) of the cone (24) and said elastic members are placed between this support and the floor or the foundations.
    4. Crusher according to claim 2 or 3, characterised in that other elastic members (55) connect the support (44) of the cone (24) to the skirt (16).
    5. Crusher according to any one of the preceding claims, characterised in that a heavy cap (32) is fixed onto the apex of the cone (24).
    6. Crusher according to claim 2 or 3, characterised in that the skirt is provided with weights.
    7. Crusher according to any one of the preceding claims, in which the cone (24) is mounted for rotation on a vertical shaft (38) fixed on the support (44), characterised in that the cone is mounted, via bearings, on a sleeve (34) comprising a shoulder which is capable of sliding over the shaft (38), in that the shaft itself comprises a shoulder, so that a tight chamber (40) is formed inside the sleeve, between the shoulders of the shaft and of the sleeve, and in that a channel (42) is pierced in the shaft to supply said chamber with pressurised liquid.
    8. Crusher according to any one of the preceding claims, characterised in that the chassis (10) is constituted by a bottomless vessel (12) in which the ring (22) is fixed and which is provided with a base (14) on which is mounted the vibration-generating device (56 to 58), and by a skirt fixed by its upper end to the edge of the base.
    9. Crusher according to claim 8, characterised in that the vibratinggenerating device is constituted by shafts (56) equipped with imbalance weights and having vertical axes, and in that each shaft bears two imbalance weights (58) disposed on either side of the plane of the base in such a way that the vibratory forces generated by the rotation of the shafts equipped with imbalance weights are located in a horizontal plane (P-P) coinciding with the median plan of the base or adjacent thereto.
    10. Crusher according to any one of the preceding claims, in which the vibration-generating device is constituted by shafts equipped with imbalance weights and having vertical axes coupled to one another and to a motor by a mechanical transmission system in which is incorporated a phase shift device, characterised in that the phase shift device is constituted by a rotary jack (68) the body or the rotary member of which is coupled directly to one of the shafts equipped with imbalance weights, and in that at least one other shaft equipped with imbalance weights is coupled to the rotary member or to the body of the jack, respectively, by a pulley and belt transmission means.
    EP96922092A 1995-06-13 1996-06-11 Vibrating cone crusher Expired - Lifetime EP0833692B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    FR9506964A FR2735402B1 (en) 1995-06-13 1995-06-13 VIBRATING CONE CRUSHER
    FR9506964 1995-06-13
    PCT/FR1996/000879 WO1996041680A1 (en) 1995-06-13 1996-06-11 Vibrating cone crusher

    Publications (2)

    Publication Number Publication Date
    EP0833692A1 EP0833692A1 (en) 1998-04-08
    EP0833692B1 true EP0833692B1 (en) 2001-03-21

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    Application Number Title Priority Date Filing Date
    EP96922092A Expired - Lifetime EP0833692B1 (en) 1995-06-13 1996-06-11 Vibrating cone crusher

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    US (1) US5996915A (en)
    EP (1) EP0833692B1 (en)
    CN (1) CN1087195C (en)
    AT (1) ATE199843T1 (en)
    AU (1) AU707703B2 (en)
    BR (1) BR9608528A (en)
    CA (1) CA2223019C (en)
    DE (1) DE69612199T2 (en)
    EG (1) EG20761A (en)
    ES (1) ES2159034T3 (en)
    FR (1) FR2735402B1 (en)
    JO (1) JO1922B1 (en)
    MA (1) MA23906A1 (en)
    MX (1) MX9710031A (en)
    NO (1) NO314716B1 (en)
    NZ (1) NZ311717A (en)
    PT (1) PT833692E (en)
    RU (1) RU2161071C2 (en)
    TR (1) TR199701603T1 (en)
    WO (1) WO1996041680A1 (en)
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    Families Citing this family (13)

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    Publication number Priority date Publication date Assignee Title
    FR2765122B1 (en) * 1997-06-30 1999-08-27 Fcb SUPPLY DEVICE FOR MATERIAL PROCESSING PLANT AND VIBRATING CRUSHER WITH VERTICAL CONE EQUIPPED WITH SUCH A DEVICE
    RU2238799C1 (en) * 2003-12-05 2004-10-27 Мироевский Петр Равильевич Apparatus for grinding and producing of highly homogenized mixtures and highly concentrated viscous suspensions
    IN2014DN03481A (en) * 2011-10-06 2015-06-05 Telsmith Inc
    CN103949301B (en) * 2013-08-28 2016-11-23 浙江双金机械集团股份有限公司 There is circular cone sand making machine excentric sleeve cooling structure and the cooling means of water cooling function
    US9393567B2 (en) * 2014-01-27 2016-07-19 Metso Minerals Industries, Inc. System and method for hydraulically removing a socket from a mainshaft of a gyrational crusher
    RU2629227C2 (en) * 2015-10-14 2017-08-28 Научно-производственная корпорация "Механобр-техника" (Акционерное общество) Method of solid materials crush by a vibration gyratory-cone crusher
    EP3389869A1 (en) * 2015-12-18 2018-10-24 Sandvik Intellectual Property AB Torque reaction pulley for an inertia cone crusher
    CN108430641B (en) * 2015-12-18 2021-09-17 山特维克知识产权股份有限公司 Driving mechanism for inertia cone crusher
    FR3063235B1 (en) * 2017-02-27 2019-04-12 Fives Solios METHOD FOR CONTROLLING A CONE MILLING MACHINE
    FR3063234B1 (en) 2017-02-27 2019-04-12 Fives Solios CONE MILLING MACHINE AND MILLING METHOD USING SUCH A MACHINE
    FR3078493B1 (en) * 2018-03-02 2020-02-14 Fives Fcb PROCESS FOR DISSOCIATING DIFFERENT CONSTITUENTS OF A HETEROGENEOUS ARTIFICIAL MATERIAL
    CN114054131B (en) * 2021-10-25 2022-11-25 南昌矿机集团股份有限公司 Double-crushing-cavity cone crusher and crushing method
    CN114210394A (en) * 2021-12-09 2022-03-22 济南铸信机械有限公司 Shockproof main frame of cone crusher

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    US4452401A (en) * 1981-08-31 1984-06-05 Zarogatsky Leonid P Inertia cone crusher
    FR2687080B1 (en) * 1992-02-06 1996-05-10 Drac Isere Concassage FIXED CONE CRUSHER.
    EP0642388A4 (en) * 1992-05-25 1995-10-18 Roger Trevor Kay A crusher.
    FR2702970B1 (en) * 1993-03-24 1995-05-24 Fcb Vibrating cone crusher and method for adjusting the speed of such a crusher.

    Also Published As

    Publication number Publication date
    JO1922B1 (en) 1997-01-15
    NZ311717A (en) 1999-11-29
    ATE199843T1 (en) 2001-04-15
    CN1087195C (en) 2002-07-10
    DE69612199T2 (en) 2001-11-08
    EG20761A (en) 2000-01-31
    CN1193290A (en) 1998-09-16
    MX9710031A (en) 1998-08-30
    WO1996041680A1 (en) 1996-12-27
    CA2223019A1 (en) 1996-12-27
    FR2735402B1 (en) 1997-08-14
    EP0833692A1 (en) 1998-04-08
    RU2161071C2 (en) 2000-12-27
    NO975855D0 (en) 1997-12-12
    NO975855L (en) 1998-02-05
    US5996915A (en) 1999-12-07
    ZA965046B (en) 1997-01-23
    AU707703B2 (en) 1999-07-15
    BR9608528A (en) 1999-11-30
    TR199701603T1 (en) 1998-05-21
    MA23906A1 (en) 1996-12-31
    AU6308996A (en) 1997-01-09
    FR2735402A1 (en) 1996-12-20
    NO314716B1 (en) 2003-05-12
    CA2223019C (en) 2002-11-12
    PT833692E (en) 2001-09-28
    DE69612199D1 (en) 2001-04-26
    ES2159034T3 (en) 2001-09-16

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