EP1843851B1 - Cone crusher provided with a system for adjusting interjaw space - Google Patents

Cone crusher provided with a system for adjusting interjaw space Download PDF

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Publication number
EP1843851B1
EP1843851B1 EP05824608A EP05824608A EP1843851B1 EP 1843851 B1 EP1843851 B1 EP 1843851B1 EP 05824608 A EP05824608 A EP 05824608A EP 05824608 A EP05824608 A EP 05824608A EP 1843851 B1 EP1843851 B1 EP 1843851B1
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EP
European Patent Office
Prior art keywords
head
eccentric
movable jaw
jaw
jack
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EP05824608A
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German (de)
French (fr)
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EP1843851A1 (en
Inventor
Jean-Pierre Delille
Serge De Backer
Michel Rude
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Metso France SAS
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Metso Minerals France SAS
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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
    • B02C2/045—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis and with bowl adjusting or controlling mechanisms
    • 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 the adjustments of the gap between the fixed jaw and the movable jaw of a cone crusher.
  • the cone crushers comprise a frustoconical crushing vessel, whose wall supports a fixed jaw, and a conical head carrying the movable jaw mounted on a shaft coaxial with the vessel.
  • the geometric axis of the conical head at the top thereof, a certain angle with the axis of the drive shaft, which gives the head, when the shaft rotates, a nutation movement.
  • the materials are progressively crushed until they reach the dimension of the smallest space r between the fixed jaw and the movable jaw, at the base of the head in nutation.
  • This difference r must be set for the particle size to be obtained, before grinding begins and during grinding.
  • the wear is compensated at the beginning of each work phase, usually at the beginning of the day, by making the initial adjustment of the gap r, as for new jaws.
  • the safety adjustment is ensured by means of accumulators supplying a determined working pressure to the jacks 5, as soon as the The pressure transmitted by the jaws increases because of a material uncrossable between them, and becomes greater than that of the accumulator, the cylinder raises the bowl 3 to increase the gap between the jaws and let the uncrushable.
  • the cylinders 8 or 9 are subjected in normal operation to the pressure of an accumulator whose pressure is determined to let the cylinder work in the other direction in case of overpressure, transmitted by the jaws.
  • the invention consists in creating a grinder that takes advantage of the two previous types without the disadvantages.
  • This consists of ensuring the safety, adjustment and daily wear compensation races, with the mill being loaded, by one or more jacks located under the movable jaw as in the type 2 crushers and to ensure the compensation. global wear by vertical movement of the fixed jaw in the frame as in the type 1 grinders, this operation can be performed during a stop phase.
  • This object is achieved in that the adjustment of the gap between the jaws, including the compensation of the overall wear, is made at a standstill, before work, by means ensuring vertical movement of the fixed jaw. relative to the frame, while the adjustment races, safety and daily wear compensation are adjusted, during the work of the mill, by means of at least one jack located under the movable jaw to provide it a vertical movement
  • the head supporting the movable jaw is mounted free to rotate on a eccentric driven in rotation about a central axis secured in vertical position of the piston of said jack below.
  • the head supporting the movable jaw is mounted integral with an axis extending the piston rod of the cylinder whose cylinder is constituted by the eccentric.
  • the head is rotatably mounted on the eccentric which is rotated by a fluted piece and positioned vertically by the piston of the jack.
  • the head is mounted free to rotate on the eccentric rotating about a fixed central axis and can slide vertically by means of a jack whose cylinder is placed on the fixed central axis and whose piston is integral with the head.
  • the exemplary embodiment shown on the figure 5 shows a grinder whose fixed jaw 1 is fixed to a bowl 3, of cylindrical outer shape, mounted movable in vertical translation in a portion 4 of corresponding form of the frame 11.
  • the displacement means of the bowl 3 are constituted in this example by a thread on the casing of the bowl, for screwing it into a threaded bore of the part 4 of the frame 11.
  • the head 10 carrying the movable jaw 2 is placed on the upper end of a central vertical axis 13, so as to be oscillable relative thereto and is driven in nutation by a drive eccentric 12, itself driven by a motor not shown to rotate about the axis 13.
  • the central axis 12 is constituted by the piston rod 14 of a cylinder 7 located below the axis and supplied with hydraulic fluid by a pump and accumulators not shown.
  • the operation of the crusher is as follows:
  • the bowl 3 carrying the fixed jaw 1 is moved in vertical translation by screwing the bowl 3 into the part 4 of the frame 11 until the gap r between the jaws is set to the desired particle size.
  • This gap setting includes global wear compensation if the jaws have already been used.
  • the head 10 carrying the movable jaw 2 is driven by the eccentric 12 which communicates a nutation movement on the upper end of the axis 13.
  • the piston 14 being, at the beginning of operation, disposed approximately halfway in the cylinder of the cylinder 7, receives, through the axis 13, the pressure exerted on the head 10. If, because of uncrushable material, this pressure increases sharply and becomes greater than that provided the accumulator (not shown), the piston 14 goes down and thus lowers the grinding head 10, thus increasing the gap between the jaws 1, 2. The Uncrushable can pass the jaws and fall.
  • the axis 13 carrying the head 10 slides in the eccentric 12 along an axis inclined relative to the vertical.
  • the head 10 is fixed relative to the axis 13 and its nutation movement is ensured by its inclination relative to the vertical.
  • the eccentric 12 is rotated through an unreferenced gear.
  • This drive could be by belt or chain, or by any other means of transmission such as the hydraulic motor shown.
  • the piston 14 secured to the axis 13 is actuated by the pressure in the cylinder 7 and moves the head 10 in one direction or the other to adjust the gap between the jaws.
  • figure 7 differs from the preceding in that the head 10 carrying the movable jaw 2 has no axis 13 but is mounted, being rotatable independently thereof, on the eccentric 12, it is rotated by a fluted piece 16 on which he can slide.
  • the eccentric head assembly is positioned vertically by the piston 17 of the cylinder 7 sliding in the frame 18, this allowing the adjustment of the machine.
  • the figure 8 represents a preferred version of the invention.
  • the upper portion not shown may be identical to the previous examples.
  • the eccentric 12 rotates about the fixed axis 13 and gives a nutation movement to the head 10, which is mounted free to rotate about the eccentric 12.
  • This head can also slide vertically on the eccentric 12 by means of a cylinder whose cylinder 19 is placed on the fixed axis 13 and whose piston 20 is integral with the head 10, allowing the adjustment of the machine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Preparation Of Fruits And Vegetables (AREA)
  • Crushing And Pulverization Processes (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

A cone crusher includes a truncated conical crushing chamber, whose wall supports a fixed jaw ( 1 ), and a conical head ( 2 ) mounted on a shaft coaxial with the chamber and provided with an eccentric. The eccentric carries the movable jaw ( 2 ). The spacing r between the jaws ( 1, 3 ), including the compensation for overall wear, is carried out when stopped, before working, by elements ensuring a vertical movement of the fixed jaw ( 1 ) relative to the frame ( 11 ), whilst the measures of adjustment, safety and daily wear compensation are adjusted, during working of the crusher, by at least one jack ( 7 ) located below the movable jaw ( 2 ) to provide to the latter a vertical movement.

Description

La présente invention concerne les réglages de l'écart entre la mâchoire fixe et la mâchoire mobile d'un broyeur à cône.The present invention relates to the adjustments of the gap between the fixed jaw and the movable jaw of a cone crusher.

Les broyeurs à cône comportent une cuve de broyage tronconique, dont la paroi supporte une mâchoire fixe, et une tête conique portant la mâchoire mobile montée sur un arbre coaxial à la cuve. L'axe géométrique de la tête conique fait au sommet de celle-ci, un certain angle avec l'axe de l'arbre d'entraînement, ce qui donne à la tête, lorsque l'arbre tourne, un mouvement de nutation. Lors de leur descente dans la cuve, les matériaux sont progressivement broyés jusqu'à atteindre la dimension du plus petit espace r entre la mâchoire fixe et la mâchoire mobile, au niveau de la base de la tête en nutationThe cone crushers comprise a frustoconical crushing vessel, whose wall supports a fixed jaw, and a conical head carrying the movable jaw mounted on a shaft coaxial with the vessel. The geometric axis of the conical head at the top thereof, a certain angle with the axis of the drive shaft, which gives the head, when the shaft rotates, a nutation movement. During their descent into the tank, the materials are progressively crushed until they reach the dimension of the smallest space r between the fixed jaw and the movable jaw, at the base of the head in nutation.

Cet écart r doit être réglé pour la granulométrie à obtenir, avant le début du broyage et pendant le broyage.This difference r must be set for the particle size to be obtained, before grinding begins and during grinding.

Un broyeur à cône doit donc posséder trois fonctions de réglage de cet écart :

  1. 1 - Un réglage initial de l'écart, qui consiste à ajuster la distance entre la mâchoire fixe et la mâchoire mobile, cette distance assurant la dimension des produits broyés.
  2. 2 - Un réglage de compensation d'usure qui consiste à rapprocher les mâchoires lorsqu'elles se sont usées au cours du travail, de manière à retrouver le réglage initial, l'écart ayant augmenté du fait de l'usure.
A cone crusher must therefore have three functions for adjusting this difference:
  1. 1 - An initial adjustment of the gap, which consists in adjusting the distance between the fixed jaw and the movable jaw, this distance ensuring the size of the crushed products.
  2. 2 - A wear compensation adjustment which involves bringing the jaws closer when they have worn out during work, so as to return to the initial setting, the gap having increased due to wear.

On distingue l'usure globale et l'usure journalière.We distinguish global wear and daily wear.

L'usure globale est l'usure de mâchoires ayant déjà servi à un broyage. Elle est compensée en même temps que le réglage d'écart, avant le démarrage de la machine.Overall wear is jaw wear that has already been used for grinding. It is compensated at the same time as the gap setting, before starting the machine.

L'usure journalière est l'usure progressive qui se produit pendant le travail. Cette usure journalière est compensée, en cours de travail, par un réglage au moyen d'un vérin qui déplace une mâchoire vers le haut, ou vers le bas selon le cas, soit automatiquement grâce à un asservissement, soit manuellement, lorsque la mesure de l'écart indique une variation de celui-ci.

  • 3 - Un réglage de sécurité, c'est à dire de protection de la machine contre le passage de pièces imbroyables plus grande que le réglage et qui pourraient l'endommager. Il consiste à éloigner rapidement l'une de l'autre les deux mâchoires pour laisser s'évacuer cet imbroyable et revenir ensuite au réglage souhaité.
Daily wear is the progressive wear that occurs during work. This daily wear is compensated, during work, by an adjustment by means of a jack which moves a jaw upwards or downwards as the case may be, either automatically thanks to a servo, either manually, when the measure of the deviation indicates a variation of it.
  • 3 - A safety setting, ie protection of the machine against the passage of uncrushable parts larger than the setting and which could damage it. It consists in rapidly moving the two jaws away from each other to allow this uncreachable to escape and then return to the desired setting.

Ces fonctions sont jusqu'à aujourd'hui été remplies de deux façons différentes, ce qui donne principalement deux types de machines:

  • 1 - Les broyeurs de type 1 dont la partie centrale (comportant la mâchoire mobile) est fixe en translation verticale et dont la partie supérieure (comportant la mâchoire fixe) est réglable verticalement et peut s'escamoter vers le haut grâce à un système de vérins ou de ressorts.
    • un premier exemple de ce type est donné figure 1 où le réglage initial et le réglage de compensation d'usure globale sont assurés par vissage du bol 3 dans l'anneau 4, et le réglage de sécurité par soulèvement de l'anneau 4, donc de toute la partie supérieure (y compris la mâchoire fixe) au moyen des vérins 5, pour laisser échapper les imbroyables
    • un second exemple est donné figure 2 où le réglage et la compensation d'usure globale sont assurés par le glissement du bol 3 dans l'anneau 4 au moyen des vérins 6, la sécurité étant assurée de manière similaire à l'exemple précédent par les vérins 5.
These functions are until today been filled in two different ways, which mainly gives two types of machines:
  • 1 - The type 1 grinders whose central part (including the movable jaw) is fixed in vertical translation and whose upper part (including the fixed jaw) is vertically adjustable and can retract upwards through a system of jacks or springs.
    • a first example of this type is given figure 1 where the initial setting and the adjustment of global wear compensation are ensured by screwing the bowl 3 into the ring 4, and the safety adjustment by raising the ring 4, therefore the entire upper part (including the jaw fixed) by means of the jacks 5, to let the uncreachable escape
    • a second example is given figure 2 where the adjustment and the overall wear compensation are ensured by the sliding of the bowl 3 in the ring 4 by means of the jacks 6, the safety being ensured in a similar manner to the previous example by the jacks 5.

Dans ces deux cas, l'usure est compensée au début de chaque phase de travail, en général au début de la journée, en effectuant le réglage initial de l'écart r, comme pour des mâchoires neuves.In both cases, the wear is compensated at the beginning of each work phase, usually at the beginning of the day, by making the initial adjustment of the gap r, as for new jaws.

Le réglage de sécurité est assuré au moyen d'accumulateurs fournissant une pression déterminée de travail aux vérins 5, dès que la pression transmise par les mâchoires augmente en raison d'un matériau imbroyable parvenant entre celles-ci, et devient supérieure à celle de l'accumulateur, le vérin soulève le bol 3 pour augmenter l'écart entre les mâchoires et laisser passer l'imbroyable.The safety adjustment is ensured by means of accumulators supplying a determined working pressure to the jacks 5, as soon as the The pressure transmitted by the jaws increases because of a material uncrossable between them, and becomes greater than that of the accumulator, the cylinder raises the bowl 3 to increase the gap between the jaws and let the uncrushable.

Les inconvénients principaux de ce type de construction sont :

  • Le coût élevé du dispositif de sécurité comportant plusieurs vérins et accumulateurs.
  • La difficulté à régler le broyeur lorsqu'il est en charge et donc de compenser l'usure journalière, car le bol doit alors être débloqué, la liaison bol - anneau étant alors soumise aux chocs et vibrations dus au broyage ; ceci entraîne des dommages mécaniques à cette liaison.
The main disadvantages of this type of construction are:
  • The high cost of the safety device comprising several jacks and accumulators.
  • The difficulty of adjusting the mill when it is in load and therefore to compensate for daily wear, because the bowl must then be unlocked, the bol - ring connection being then subjected to shocks and vibrations due to grinding; this causes mechanical damage to this link.

On connaît par le brevet US 5 312 053 un broyeur de ce type, comportant un vérin situé sous la mâchoire mobile, dont le piston 99 sert au réglage de l'excentricité de la mâchoire mobile, pas au réglage de l'écart entre les mâchoires. Le vérin ne provoque pas le mouvement de la tête supportant la mâchoire mobile.We know by the patent US 5,312,053 a mill of this type, comprising a jack located under the movable jaw, whose piston 99 serves to adjust the eccentricity of the movable jaw, not to adjust the gap between the jaws. The cylinder does not cause the movement of the head supporting the movable jaw.

Ce broyeur présente donc les inconvénients de tous les broyeurs du type 1.

  • 2 - Les broyeurs de type 2 dont la partie supérieure portant la mâchoire fixe est fixe et dont la partie centrale portant la mâchoire mobile est mobile en translation verticale au moyen d'un ou plusieurs vérins placés en dessous.
    • un premier exemple de ce type est donné figure 3 : la mâchoire fixe 1 est maintenue dans le bol 3 qui est fixé au bâti. La mâchoire mobile est supportée par l'arbre 7 qui la rend mobile en translation verticale sous l'action du vérin 8, celui-ci assurant les 3 fonctions réglage initial, compensation d'usure et sécurité.
    • un second exemple est donné Fig. 4 : la mâchoire fixe 1 est maintenue dans le bol 3 qui est fixé au bâti. La mâchoire mobile est supportée par la tête 10 qui coulisse dans le bâti 11 sous l'action des vérins 9, ceux-ci assurant les 3 fonctions réglage, compensation d'usure et sécurité.
This mill therefore has the disadvantages of all type 1 grinders.
  • 2 - The type 2 grinders whose upper part carrying the fixed jaw is fixed and whose central portion carrying the movable jaw is movable in vertical translation by means of one or more jacks placed underneath.
    • a first example of this type is given figure 3 : the fixed jaw 1 is held in the bowl 3 which is fixed to the frame. The movable jaw is supported by the shaft 7 which makes it movable in vertical translation under the action of the cylinder 8, the latter providing the 3 functions initial adjustment, wear compensation and safety.
    • a second example is given Fig. 4 : the fixed jaw 1 is held in the bowl 3 which is fixed to the frame. The movable jaw is supported by the head 10 which slides in the frame 11 under the action of the cylinders 9, these ensuring the 3 functions adjustment, wear compensation and safety.

Comme pour les broyeurs de type 1, les vérins 8 ou 9 sont soumis en régime normal à la pression d'un accumulateur dont la pression est déterminée pour laisser le vérin travailler dans l'autre sens en cas de surpression, transmise par les mâchoires.As for the type 1 grinders, the cylinders 8 or 9 are subjected in normal operation to the pressure of an accumulator whose pressure is determined to let the cylinder work in the other direction in case of overpressure, transmitted by the jaws.

Les inconvénients principaux de ce type de construction sont :

  • une hauteur importante de la machine due au cumul des courses à prévoir des différentes fonctions. En effet, dès le démarrage du travail, il faut laisser aux vérins une course minimale de sécurité pour compenser les efforts de broyages supérieurs à la normale.
  • la difficulté à reprendre ces efforts de broyage, toujours vu le cumul des différentes courses, amène la plupart, sinon tous les constructeur à négliger la course de sécurité lorsque le mâchoires sont neuves, la machine n'étant alors que très peu protégée contre les imbroyables avant la mi-usure des mâchoires.
The main disadvantages of this type of construction are:
  • a significant height of the machine due to the accumulation of races to provide different functions. Indeed, from the start of work, it is necessary to leave the cylinders a minimum safety stroke to compensate for the efforts of grindings above normal.
  • the difficulty to resume these grinding efforts, always seen the accumulation of different races, leads most, if not all manufacturers to neglect the safety race when the jaws are new, the machine being then very little protected against uncreachable before mid-wear of the jaws.

L'invention consiste à créer un broyeur qui reprend les avantages des deux types précédents sans en présenter les inconvénients.The invention consists in creating a grinder that takes advantage of the two previous types without the disadvantages.

Cela consiste à assurer les courses de sécurité, de réglage et la compensation d'usure journalière, le broyeur étant en charge, par un ou des vérins situé(s) sous la mâchoire mobile comme dans les broyeurs de type 2 et à assurer la compensation d'usure globale par mouvement vertical de la mâchoire fixe dans le bâti comme dans les broyeurs de type 1, cette opération pouvant être exécutée pendant une phase d'arrêt.This consists of ensuring the safety, adjustment and daily wear compensation races, with the mill being loaded, by one or more jacks located under the movable jaw as in the type 2 crushers and to ensure the compensation. global wear by vertical movement of the fixed jaw in the frame as in the type 1 grinders, this operation can be performed during a stop phase.

Ce but est atteint en ce que le réglage de l'écart entre les mâchoires, y-compris la compensation de l'usure globale, est effectué à l'arrêt, avant le travail, par des moyens assurant un mouvement vertical de la mâchoire fixe par rapport au bâti, tandis que les courses de réglage, de sécurité et de compensation de l'usure journalière sont ajustées, pendant le travail du broyeur, au moyen d'au moins un vérin situé sous la mâchoire mobile pour fournir à celle-ci un mouvement verticalThis object is achieved in that the adjustment of the gap between the jaws, including the compensation of the overall wear, is made at a standstill, before work, by means ensuring vertical movement of the fixed jaw. relative to the frame, while the adjustment races, safety and daily wear compensation are adjusted, during the work of the mill, by means of at least one jack located under the movable jaw to provide it a vertical movement

Selon une première forme de réalisation de l'invention, la tête supportant la mâchoire mobile est montée libre en rotation sur un excentrique entraîné en rotation autour d'un axe central solidaire en position vertical du piston dudit vérin situé dessous.According to a first embodiment of the invention, the head supporting the movable jaw is mounted free to rotate on a eccentric driven in rotation about a central axis secured in vertical position of the piston of said jack below.

Selon une deuxième forme de réalisation de l'invention, la tête supportant la mâchoire mobile est montée solidaire d'un axe prolongeant la tige du piston du vérin dont le cylindre est constitué par l'excentrique.According to a second embodiment of the invention, the head supporting the movable jaw is mounted integral with an axis extending the piston rod of the cylinder whose cylinder is constituted by the eccentric.

Selon une troisième forme de réalisation de l'invention la tête est montée tournante sur l'excentrique qui est entraîné en rotation par une pièce cannelée et positionné verticalement par le piston du vérin.According to a third embodiment of the invention the head is rotatably mounted on the eccentric which is rotated by a fluted piece and positioned vertically by the piston of the jack.

Selon une quatrième forme de réalisation de l'invention la tête est montée libre en rotation sur l'excentrique tournant autour d'un axe central fixe et peut coulisser verticalement au moyen d'un vérin dont le cylindre est posé sur l'axe central fixe et dont le piston est solidaire de la tête.According to a fourth embodiment of the invention the head is mounted free to rotate on the eccentric rotating about a fixed central axis and can slide vertically by means of a jack whose cylinder is placed on the fixed central axis and whose piston is integral with the head.

L'invention sera mieux comprise au moyen d'exemples de réalisation représentés sur le dessin annexé sur lequel,

  • Les figures 1 à 4 représentent les broyeurs de l'art antérieur explicités plus haut,
  • La figure 5 représente une première forme de réalisation de l'invention
  • La figure 6 représente une deuxième forme de réalisation de l'invention
  • La figure 7 représente une troisième forme de réalisation de l'invention
  • La figure 8 représente une quatrième forme de réalisation de l'invention
The invention will be better understood by means of exemplary embodiments shown in the accompanying drawing in which,
  • The Figures 1 to 4 represent the grinders of the prior art explained above,
  • The figure 5 represents a first embodiment of the invention
  • The figure 6 represents a second embodiment of the invention
  • The figure 7 represents a third embodiment of the invention
  • The figure 8 represents a fourth embodiment of the invention

L'exemple de réalisation représenté sur la figure 5 montre un broyeur dont la mâchoire fixe 1 est fixée à un bol 3, de forme extérieure cylindrique, monté mobile en translation verticale dans une partie 4 de forme correspondante du bâti 11. Les moyens de déplacement du bol 3 sont constitués dans cet exemple par un filetage sur l'enveloppe du bol, permettant de le visser dans un alésage taraudé de la partie 4 du bâti 11.The exemplary embodiment shown on the figure 5 shows a grinder whose fixed jaw 1 is fixed to a bowl 3, of cylindrical outer shape, mounted movable in vertical translation in a portion 4 of corresponding form of the frame 11. The displacement means of the bowl 3 are constituted in this example by a thread on the casing of the bowl, for screwing it into a threaded bore of the part 4 of the frame 11.

La tête 10 portant la mâchoire mobile 2 est posée sur l'extrémité supérieure d'un axe central 13 vertical, de façon à pouvoir osciller par rapport à celui-ci et est entraînée en nutation par un excentrique d'entraînement 12, lui-même entraîné par un moteur non représenté pour tourner autour de l'axe 13.The head 10 carrying the movable jaw 2 is placed on the upper end of a central vertical axis 13, so as to be oscillable relative thereto and is driven in nutation by a drive eccentric 12, itself driven by a motor not shown to rotate about the axis 13.

L'axe central 12 est constitué par la tige du piston 14 d'un vérin 7 situé au-dessous de l'axe et alimenté en liquide hydraulique par une pompe et des accumulateurs non représentés.The central axis 12 is constituted by the piston rod 14 of a cylinder 7 located below the axis and supplied with hydraulic fluid by a pump and accumulators not shown.

Le fonctionnement du broyeur est le suivant :The operation of the crusher is as follows:

Avant le broyage, le bol 3 portant la mâchoire fixe 1 est déplacé en translation verticale par vissage du bol 3 dans la parti 4 du bâti 11 jusqu'à ce que l'écart r entre les mâchoires soit réglé à la granulométrie recherchée. Ce réglage d'écart inclut la compensation de l'usure globale si les mâchoires ont déjà été utilisées.Before grinding, the bowl 3 carrying the fixed jaw 1 is moved in vertical translation by screwing the bowl 3 into the part 4 of the frame 11 until the gap r between the jaws is set to the desired particle size. This gap setting includes global wear compensation if the jaws have already been used.

Lorsque le broyeur est en charge, la tête 10 portant la mâchoire mobile 2 est entraînée par l'excentrique 12 qui lui communique un mouvement de nutation sur l'extrémité supérieure de l'axe 13.When the mill is in load, the head 10 carrying the movable jaw 2 is driven by the eccentric 12 which communicates a nutation movement on the upper end of the axis 13.

Le piston 14 étant, en début de fonctionnement, disposé à peu près à mi-course dans le cylindre du vérin 7, reçoit, par l'entremise de l'axe 13, la pression exercé sur la tête 10. Si, du fait d'un matériau imbroyable, cette pression augmente brusquement et devient supérieure à celle fournie l'accumulateur (non représenté), le piston 14 descend et abaisse ainsi la tête de broyage 10, augmentant ainsi l'écart entre les mâchoires 1, 2. L'imbroyable peut passer les mâchoires et tomber.The piston 14 being, at the beginning of operation, disposed approximately halfway in the cylinder of the cylinder 7, receives, through the axis 13, the pressure exerted on the head 10. If, because of uncrushable material, this pressure increases sharply and becomes greater than that provided the accumulator (not shown), the piston 14 goes down and thus lowers the grinding head 10, thus increasing the gap between the jaws 1, 2. The Uncrushable can pass the jaws and fall.

Lorsque, du fait de l'usure, l'écart entre les mâchoires augmente, la détection de cette variation d'écart entraîne le mouvement du piston 14 du vérin 7 vers le haut, automatiquement avec un asservissement ou manuellement par surveillance de la mesure de l'écart r, rapprochant ainsi la mâchoire mobile 2 de la mâchoire fixe 1.When, due to wear, the gap between the jaws increases, the detection of this deviation variation causes the movement of the piston 14 of the cylinder 7 upwards, automatically with a servo or manually by monitoring the measurement of the distance r, thus bringing the movable jaw 2 closer to the fixed jaw 1.

Dans l'exemple de réalisation montré à la figure 6, où les parties identiques ou jouant le même rôle portent la même référence numérique, l'axe 13 portant la tête 10 coulisse dans l'excentrique 12 selon un axe incliné par rapport à la verticale. La tête 10 est fixe par rapport à l'axe 13 et son mouvement de nutation est assuré par son inclinaison par rapport à la verticale.In the exemplary embodiment shown in figure 6 , where the identical parts or playing the same role bear the same reference numeral, the axis 13 carrying the head 10 slides in the eccentric 12 along an axis inclined relative to the vertical. The head 10 is fixed relative to the axis 13 and its nutation movement is ensured by its inclination relative to the vertical.

L'excentrique 12 est entraîné en rotation par l'entremise d'un engrenage non référencé. Cet entraînement pourrait se faire par courroie ou par chaîne, Ou par tout autre moyen de transmission tel que le moteur hydraulique représenté.The eccentric 12 is rotated through an unreferenced gear. This drive could be by belt or chain, or by any other means of transmission such as the hydraulic motor shown.

Le réglage de départ de l'écart et la compensation de l'usure globale se font de la même façon que dans l'exemple précédent.The starting adjustment of the difference and the compensation of the global wear are done in the same way as in the preceding example.

En cours de travail, le piston 14 solidaire de l'axe 13 est actionné par la pression dans le vérin 7 et déplace la tête 10 dans un sens ou dans l'autre afin de régler l'écart entre les mâchoires.During work, the piston 14 secured to the axis 13 is actuated by the pressure in the cylinder 7 and moves the head 10 in one direction or the other to adjust the gap between the jaws.

L'exemple de la figure 7 diffère du précédent en ce que la tête 10 portant la mâchoire mobile 2 ne comporte pas d'axe 13 mais est montée, pouvant tourner indépendamment de celui-ci, sur l'excentrique 12, celui-ci est entraîné en rotation par une pièce cannelée 16 sur laquelle il peut coulisser. L'ensemble tête excentrique est positionné verticalement par le piston 17 du vérin 7 coulissant dans le bâti 18, ceci permettant le réglage de la machine.The example of figure 7 differs from the preceding in that the head 10 carrying the movable jaw 2 has no axis 13 but is mounted, being rotatable independently thereof, on the eccentric 12, it is rotated by a fluted piece 16 on which he can slide. The eccentric head assembly is positioned vertically by the piston 17 of the cylinder 7 sliding in the frame 18, this allowing the adjustment of the machine.

La figure 8 représente une version préférée de l'invention.The figure 8 represents a preferred version of the invention.

La partie supérieure non représentée peut être identique aux exemples précédents.The upper portion not shown may be identical to the previous examples.

L'excentrique 12 tourne autour de l'axe fixe 13 et donne un mouvement de nutation à la tête 10, qui est montée libre en rotation autour de l'excentrique 12. Cette tête peut également glisser verticalement sur l'excentrique 12 au moyen d'un vérin dont le cylindre 19 est posé sur l'axe fixe 13 et dont le piston 20 est solidaire de la tête 10, cela permettant le réglage de la machine.The eccentric 12 rotates about the fixed axis 13 and gives a nutation movement to the head 10, which is mounted free to rotate about the eccentric 12. This head can also slide vertically on the eccentric 12 by means of a cylinder whose cylinder 19 is placed on the fixed axis 13 and whose piston 20 is integral with the head 10, allowing the adjustment of the machine.

Il va de soi que l'on peut réaliser l'invention selon d'autres variantes sans sortir du cadre de celle-ci.It goes without saying that one can realize the invention according to other variants without departing from the scope thereof.

Claims (5)

  1. Cone crusher comprising a truncated conical crushing chamber whose wall supports a fixed jaw, a conical head mounted on a shaft coaxial with the chamber and provided with an eccentric, which carries the movable jaw, the spacing between the fixed jaw and the movable jaw being able to be adjustable, means ensuring a vertical movement of the fixed jaw (1) relative to the frame (11), in order to adjust, during a stop, before working, the spacing between the jaws (1, 3), including the compensation of overall wear, characterised in that it comprises a jack (7) located below the movable jaw (2) to give this latter a vertical movement in order to adjust, during working of the crusher, the strokes for setting, safety and compensation of daily wear.
  2. Cone crusher according to claim 1, characterized in that the head (10) supporting the movable jaw (2) is mounted freely in rotation on an eccentric (12) driven in rotation about a central axle (13) secured in vertical position of the piston (14) of said jack (7) located below.
  3. Cone crusher according to claim 1, characterized in that the head (10) supporting the movable jaw (2) is mounted fixedly to an axle (13) prolonging the piston rod (14) of the jack (7) whose cylinder is constituted by the eccentric (12).
  4. Cone crusher according to claim 1, characterized in that the head (10) is mounted turnably on the eccentric (12) which is driven in rotation by a channeled member (16) and positioned vertically by the piston (17) of the jack (7).
  5. Cone crusher according to claim 1, characterized in that the head (10) is mounted freely in rotation on the eccentric (12) turning about a fixed central axle (13) and can slide vertically by means of a jack whose cylinder (19) is disposed on the fixed central axle (13) and whose piston (20) is secured to the head.
EP05824608A 2004-12-17 2005-12-07 Cone crusher provided with a system for adjusting interjaw space Active EP1843851B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0413491A FR2879480B1 (en) 2004-12-17 2004-12-17 CONE SHREDDER
PCT/FR2005/003067 WO2006067292A1 (en) 2004-12-17 2005-12-07 Cone crusher provided with a system for adjusting interjaw space

Publications (2)

Publication Number Publication Date
EP1843851A1 EP1843851A1 (en) 2007-10-17
EP1843851B1 true EP1843851B1 (en) 2010-04-28

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EP05824608A Active EP1843851B1 (en) 2004-12-17 2005-12-07 Cone crusher provided with a system for adjusting interjaw space

Country Status (15)

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US (1) US20060131455A1 (en)
EP (1) EP1843851B1 (en)
JP (1) JP2008523977A (en)
CN (1) CN101080277B (en)
AT (1) ATE465812T1 (en)
AU (1) AU2005317998B2 (en)
BR (1) BRPI0517860B8 (en)
DE (1) DE602005020984D1 (en)
ES (1) ES2344515T3 (en)
FR (1) FR2879480B1 (en)
PT (1) PT1843851E (en)
RU (1) RU2007118202A (en)
UA (1) UA91034C2 (en)
WO (1) WO2006067292A1 (en)
ZA (1) ZA200705092B (en)

Cited By (2)

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WO2012140307A1 (en) 2011-04-13 2012-10-18 Metso Minerals, Inc. Cone crusher and processing plant for mineral material
RU2691313C1 (en) * 2015-08-21 2019-06-11 Метсо Минералз Индастриз, Инк. Crushing device comprising overload protection device

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SE533274C2 (en) * 2008-12-19 2010-08-10 Sandvik Intellectual Property Axial storage for a gyratory crusher, and ways to support a vertical shaft in such a crusher
DK2999540T3 (en) * 2013-05-20 2018-07-30 Jtg And Partners Pty Ltd A GRINDING APPLIANCE
US20150174581A1 (en) * 2013-12-19 2015-06-25 Metso Minerals Industries, Inc. Split mainframe including tramp release cylinders
CN106807481A (en) * 2015-11-30 2017-06-09 成都九十度工业产品设计有限公司 A kind of gyratory crusher
CN107127012B (en) * 2017-06-12 2019-04-02 浙江武精机器制造有限公司 Gyratory crusher fixing device for rolled mortar wall
CN107233955A (en) * 2017-07-26 2017-10-10 湘潭市润金新材料有限公司 Autorotation squash type autoclase disintegrating machine
CN109663629A (en) * 2018-12-18 2019-04-23 北京凯特破碎机有限公司 Unit for inertial conic crusher

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US9238228B2 (en) 2011-04-13 2016-01-19 Metso Minerals, Inc. Cone crusher and processing plant for mineral material
RU2691313C1 (en) * 2015-08-21 2019-06-11 Метсо Минералз Индастриз, Инк. Crushing device comprising overload protection device

Also Published As

Publication number Publication date
JP2008523977A (en) 2008-07-10
AU2005317998A1 (en) 2006-06-29
BRPI0517860B1 (en) 2018-09-25
BRPI0517860A2 (en) 2009-01-27
EP1843851A1 (en) 2007-10-17
AU2005317998B2 (en) 2010-07-22
FR2879480A1 (en) 2006-06-23
BRPI0517860B8 (en) 2023-04-25
ATE465812T1 (en) 2010-05-15
UA91034C2 (en) 2010-06-25
CN101080277B (en) 2010-06-16
PT1843851E (en) 2010-06-16
FR2879480B1 (en) 2007-03-02
ES2344515T3 (en) 2010-08-30
CN101080277A (en) 2007-11-28
US20060131455A1 (en) 2006-06-22
RU2007118202A (en) 2008-11-27
DE602005020984D1 (en) 2010-06-10
WO2006067292A1 (en) 2006-06-29
ZA200705092B (en) 2008-08-27

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