EP1023936B2 - Method for adjusting the torque for force transmission of a magnetic drive agitator - Google Patents

Method for adjusting the torque for force transmission of a magnetic drive agitator Download PDF

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Publication number
EP1023936B2
EP1023936B2 EP99420233A EP99420233A EP1023936B2 EP 1023936 B2 EP1023936 B2 EP 1023936B2 EP 99420233 A EP99420233 A EP 99420233A EP 99420233 A EP99420233 A EP 99420233A EP 1023936 B2 EP1023936 B2 EP 1023936B2
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EP
European Patent Office
Prior art keywords
rotor
axis
sleeve
shaft
rotation
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EP99420233A
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German (de)
French (fr)
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EP1023936B1 (en
EP1023936A1 (en
Inventor
Philippe Eyraud
Guy Flavien
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Mixel
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Mixel
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
    • B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
    • B01F33/4535—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements using a stud for supporting the stirring element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
    • B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements

Abstract

The rotor can be moved in translation parallel to the X-X' axis inside the sleeve between a first position where the two means of coupling are matching to drive the helix in rotation and a second position where they do not interact or interact little, so the helix can be displaced relative to the sleeve without the two couplings interacting The agitator comprises a union (5) which can be mounted in a sealed fashion in a wall (2a) of a receiver with a blind sleeve (10) inside which is fitted a rotor (20) supporting a first magnetic coupling (21). A helix (8) placed around the sleeve is equipped with a second magnetic coupling (17) to drive the helix around an axis (X-X') of rotation. The rotor can be moved in rotation around and parallel to the axis X-X' by a drive shaft (22) which is itself movable in rotation around and parallel to the X-X' axis between two positions corresponding to those of the rotor. The rotor has a central hollow to receive a screw for mounting the rotor on the shaft, with the screw placed along the X-X' axis. The rotor and/or shaft can be immobilized during their parallel movement in an intermediate position. The drive shaft is mounted to slide inside a hollow shaft which is the output from a reduction gear, with the two shafts fixed together in rotation. The hollow shaft has a screw which acts with a fillet fixed to the drive shaft. The parallel movement is controlled by a hydraulic or pneumatic jack. Process of controlling couple transmitted to a magnetic agitator as described above by controlling the position of the rotor along the X-X' axis.

Description

L'invention a trait à un procédé de réglage du couple limite de transmission d'effort d'un agitateur à entraînement magnétique.The invention relates to a method for adjusting the limit torque of force transmission of a magnetic drive stirrer.

Des agitateurs sont classiquement utilisés pour brasser un mélange situé à l'intérieur d'un récipient afin d'éviter une décantation ou toute autre altération du mélange au cours du temps. Un agitateur à entraînement magnétique présente l'avantage que la mise en mouvement de l'hélice qu'il comprend est réalisée par un couplage magnétique qui a lieu sans contact physique entre deux parties tournantes dont l'une est entraînée par l'arbre de sortie d'un moteur électrique alors que l'autre est constituée par une hélice. Ceci permet de disposer la partie associée à l'arbre du moteur électrique à l'extérieur du récipient alors que l'hélice est installée à l'intérieur du récipient. Tout danger de fuite au niveau de l'agitateur peut ainsi être écarté. Ceci est particulièrement utile lorsque le mélange est toxique ou lorsqu'une pollution de celui-ci par des agents extérieurs doit être évitée comme, par exemple, dans le cas d'une composition médicamenteuse.Agitators are conventionally used to stir a mixture within a container to prevent settling or other alteration of the mixture over time. A magnetic drive agitator has the advantage that the motion of the helix it comprises is performed by a magnetic coupling which takes place without physical contact between two rotating parts, one of which is driven by the output shaft. of an electric motor while the other is constituted by a propeller. This allows to arrange the portion associated with the electric motor shaft outside the container while the propeller is installed inside the container. Any danger of leakage at the agitator can be avoided. This is particularly useful when the mixture is toxic or where pollution thereof by external agents should be avoided such as, for example, in the case of a drug composition.

Le couplage magnétique utilisé pour un agitateur industriel doit être intense afin d'entraîner l'hélice de l'agitateur avec une force suffisante. Or, il est parfois nécessaire de procédé au démontage de l'hélice, notamment pour des raisons de maintenance ou d'inspection du récipient dans lequel est formé le mélange (voir par exemple EP 0437394). II est ainsi courant de prévoir de nettoyer l'hélice d'un agitateur et/ou de la stériliser à l'extérieur du récipient à la fin de chaque lot de fabrication. Il est parfois nécessaire de démonter l'hélice pour procéder à l'échange standard de pièces d'usure telles que des paliers. Lorsqu'une hélice à été démontée, elle doit être remise en place avec les plus grandes précautions sur son support en évitant le plus possible les heurts susceptibles d'endommager les pales, les paliers et/ou la surface du récipient.The magnetic coupling used for an industrial agitator must be intense in order to drive the impeller of the stirrer with sufficient force. However, it is sometimes necessary to dismantle the propeller, especially for reasons of maintenance or inspection of the container in which the mixture is formed (see for example EP 0437394). It is thus common to provide for cleaning the impeller of an agitator and / or sterilizing it outside the container at the end of each batch of manufacture. It is sometimes necessary to disassemble the propeller to carry out the standard exchange of wear parts such as bearings. When a propeller has been disassembled, it must be put back in place with the utmost care on its support, avoiding as much as possible clashes likely to damage the blades, the bearings and / or the surface of the container.

Les forces magnétiques nécessaires à l'entraînement de l'hélice d'un agitateur industriel sont telles que l'effort que doit exercer un opérateur pour retirer l'hélice est très important, car cet effort doit vaincre à la fois le poids de l'hélice et la force de couplage magnétique nécessaire à l'entraînement. Ceci est encore plus critique lors de la remise en place de l'hélice, dans la mesure où, lors de la présentation de celle-ci, il arrive que l'effort magnétique soit si intense que l'hélice échappe à l'opérateur et vienne se plaquer violemment contre son support, ce qui a pour conséquence d'endommager les paliers, voire de blesser l'opérateur.The magnetic forces required to drive the propeller of an industrial agitator are such that the effort to be exerted by an operator to remove the propeller is very important, because this effort must overcome both the weight of the propeller. propeller and the magnetic coupling force necessary for the drive. This is even more critical when the propeller is put back in place, since during the presentation of the propeller it happens that the magnetic force is so intense that the propeller escapes the operator and come and press against the support, causing damage to the bearings or even injury to the operator.

En outre, il est particulièrement délicat pour un opérateur de présenter l'hélice parfaitement alignée avec l'axe de rotation de son rotor, de sorte que si celle-ci échappe à l'opérateur du fait de la force magnétique qu'elle subit, elle a tendance à être plaquée en biais sur son support, ce qui peut conduire à la destruction d'une de ses pales, au marquage de la surface interne de la cuve et/ou à l'endommagement d'un des paliers. Pour pallier cet inconvénient, on peut envisager de démonter systématiquement l'ensemble d'entraînement de l'hélice situé à l'extérieur du récipient, c'est-à-dire son moteur d'entraînement et éventuellement le réducteur qui lui est associé, afin de supprimer les efforts magnétiques exercés sur l'hélice en cours de montage ou de démontage. Une telle approche nécessite la manipulation par un opérateur de pièces lourdes et encombrantes, ces pièces étant généralement situées sous les cuves ou récipients de fabrication et d'accès difficile. En outre, un tel démontage de ces systèmes d'entraînement doit être suivi d'un remontage au cours duquel les axes des pièces tournantes doivent être très précisément alignés, ce qui n'est pas toujours possible compte tenu des difficultés d'accès aux zones de remontage du moteur et de son éventuel réducteur. De plus, le démontage de la partie extérieure de l'agitateur revient à exposer à l'air libre le rotor d'entraînement magnétique, ce rotor étant pourvu d'aimants permanents dont les surfaces externes peuvent se couvrir d'impuretés magnétiques. Compte tenu du faible jeu présent autour du rotor, ces impuretés peuvent conduire à un usinage des aimants et à un blocage de l'agitateur.In addition, it is particularly difficult for an operator to present the propeller perfectly aligned with the axis of rotation of its rotor, so that if it escapes the operator because of the magnetic force that it undergoes, it tends to be placed obliquely on its support, which can lead to the destruction of one of its blades, the marking of the inner surface of the tank and / or damage to one of the bearings. To overcome this drawback, it is conceivable to systematically disassemble the drive assembly of the propeller located outside the container, that is to say its drive motor and possibly the reducer associated with it, in order to eliminate the magnetic forces exerted on the propeller during assembly or disassembly. Such an approach requires the manipulation by an operator of heavy and bulky parts, these parts being generally located under the tanks or containers of manufacture and difficult access. In addition, such disassembly of these drive systems must be followed by a winding during which the axes of the rotating parts must be very precisely aligned, which is not always possible given the difficulties of access to the zones. winding the motor and its possible reducer. In addition, the disassembly of the outer part of the agitator amounts to exposing the magnetic drive rotor to the open air, this rotor being provided with permanent magnets, the external surfaces of which can be covered with magnetic impurities. Given the low clearance present around the rotor, these impurities can lead to a machining magnets and a blockage of the stirrer.

L'invention concerne un procédé de réglage du couple limite de transmission d'effort d'un agitateur tel que précédemment décrit, qui consiste à régler la position du rotor le long de cet axe, de telle sorte que les premier et second moyens de couplage magnétique soient plus ou moins en regard. Grâce au procédé de l'invention, le couple transmissible entre le rotor et l'hélice est plus ou moins important, comme indiqué ci-dessus.The invention relates to a method for adjusting the limit torque of force transmission of an agitator as previously described, which consists in adjusting the position of the rotor along this axis, so that the first and second coupling means magnetic are more or less opposite. Thanks to the method of the invention, the transmissible torque between the rotor and the propeller is more or less important, as indicated above.

L'invention permet d'envisager d'utiliser l'agitateur alors que l'effort de couplage magnétique entre le rotor et l'hélice est diminué par rapport à la position où les moyens de couplage respectifs sont en regard, de sorte que le couple d'entraînement de l'hélice est limité. Ceci est avantageux lorsqu'on souhaite utiliser l'agitateur avec un mélange dont la viscosité est variable, par exemple du fait d'une réaction chimique. Dans ce cas, l'agitateur est bloqué lorsque la viscosité du mélange est telle que le couple pouvant être transmis à l'hélice est inférieur à celui qui serait nécessaire pour la mettre en mouvement dans ce mélange.The invention makes it possible to envisage using the stirrer while the magnetic coupling force between the rotor and the propeller is decreased with respect to the position where the respective coupling means are facing each other, so that the torque propeller drive is limited. This is advantageous when it is desired to use the stirrer with a mixture whose viscosity is variable, for example due to a chemical reaction. In this case, the agitator is blocked when the viscosity of the mixture is such that the torque that can be transmitted to the propeller is less than that which would be necessary to set it in motion in this mixture.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre de deux modes de réalisation d'un agitateur à entraînement magnétique et de leur procédé de réglage, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une représentation schématique de principe d'un récipient pour mélange équipé d'un agitateur conforme à l'invention ;
  • la figure 2 est une vue à plus grande échelle du détail Il à la figure 1, l'agitateur étant représenté en coupe, dans une première position ;
  • la figure 3 est une vue analogue à la figure 2, alors que l'agitateur est dans une seconde position et
  • la figure 4 est une vue partielle de la partie inférieure d'un agitateur conforme à un second mode de réalisation de l'invention.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of two embodiments of a magnetic drive stirrer and their adjustment method, given solely for example and made with reference to the accompanying drawings in which:
  • Figure 1 is a schematic representation of the principle of a mixing container equipped with an agitator according to the invention;
  • Figure 2 is an enlarged view of detail II in Figure 1, the agitator being shown in section, in a first position;
  • FIG. 3 is a view similar to FIG. 2, while the stirrer is in a second position and
  • Figure 4 is a partial view of the lower part of an agitator according to a second embodiment of the invention.

A la figure 1, un récipient 1 est formé d'une cuve 2 dans laquelle est disposé un mélange 3, alors qu'un couvercle 4 est prévu pour obturer une ouverture supérieure de la cuve.In Figure 1, a container 1 is formed of a tank 2 in which is disposed a mixture 3, while a lid 4 is provided to close an upper opening of the tank.

Dans la paroi de fond 2a de la cuve 2 est disposée une bride 5 en matériau amagnétique supportant un réducteur 6 et un moteur électrique 7, situés à l'extérieur de la cuve 2. Une hélice 8 est disposée à l'intérieur de la cuve 2, dans le mélange 3. La mise en rotation de l'hélice 8 par le moteur 7 résulte dans un déplacement de ses pales 8a, dont deux sont visibles sur les figures, autour d'un axe de rotation X-X', ce qui a pour effet de brasser le mélange 3.In the bottom wall 2a of the vessel 2 there is arranged a flange 5 of non-magnetic material supporting a reduction gear 6 and a motor 7, located outside of the tank 2. A propeller 8 is arranged inside the tank 2, in the mixture 3. the rotation of the impeller 8 by the motor 7 results in a displacement of the blades 8a, two of which are visible in the figures, about an axis of rotation X-X ' , which has the effect of stirring the mixture 3.

La bride 5 forme un manchon borgne 10 qui se prolonge à l'intérieur de la cuve 2. Un palier 11 est monté sur l'extrémité 10a du manchon 10 grâce à un axe 12 dont l'extrémité filetée 12a est reçue dans un taraudage 10b de l'extrémité 10a du manchon 10. Le palier 11 supporte une douille 13 dont la surface extérieure 13a constitue une surface de palier. L'hélice 8 comprend une tête 14 formée d'une bague 15 dont la surface circulaire interne 15a est destinée à s'emboîter autour de la surface 13a de la douille 13. Un palier lisse est ainsi réalisé par contact, par exemple métal-métal, entre les surfaces 13a et 15a.The flange 5 forms a blind sleeve 10 which extends inside the tank 2. A bearing 11 is mounted on the end 10a of the sleeve 10 through an axis 12, the threaded end 12a is received in an internal thread 10b of the end 10a of the sleeve 10. the bearing 11 supports a sleeve 13 whose outer surface 13a is a bearing surface. The screw 8 has a head 14 formed of a ring 15 whose inner circular surface 15a is intended to fit around the surface 13 a of the sleeve 13. A sliding bearing is thus formed by contact, for example metal -metal, between the surfaces 13a and 15 a.

Trois branches, dont deux sont visibles sur les figures avec la référence 15b, et qui sont régulièrement réparties à la périphérie de la bague 15, s'étendent vers l'extérieur à partir de celle-ci et supportent un fourreau 16 disposé autour du manchon borgne 10. Les pales 8a de l'hélice 8 sont soudées sur l'extérieur du fourreau 16. Ce fourreau 16 porte, sur sa surface interne 16a dirigée vers le manchon 10, deux rangées d'aimants permanents 17 dont la polarité nord-sud est dirigée selon des directions A-A' et B-B' globalement perpendiculaires à l'axe X-X'.Three branches, two of which are visible in the figures with the reference 15 b , and which are evenly distributed around the periphery of the ring 15, extend outwardly therefrom and support a sleeve 16 arranged around the blind sleeve 10. the blades 8a of the impeller 8 are welded to the outside of the sheath 16. This sheath 16 carries on its inner surface 16a facing the sleeve 10, two rows of permanent magnets 17 whose polarity north-south is directed in directions AA 'and BB' generally perpendicular to the axis X-X '.

Un rotor 20 est disposé à l'intérieur du manchon 10 et comprend une première partie en forme de douille 20a sur la surface externe 20b de laquelle sont montés des aimants permanents 21 alignés avec les aimants 17, dans la configuration de la figure 2. Dans cette configuration, les directions C-C' et D-D' de polarité des aimants 21 sont sensiblement alignées avec les directions A-A' et B-B'. Le rotor 20 est prévu pour tourner autour de l'axe X-X' et entraîner, grâce au couplage magnétique réalisé entre les aimants 21 et 17, l'hélice 8 en rotation autour de cet axe.A rotor 20 is disposed within the sleeve 10 and comprises a first sleeve-shaped portion 20 has on the outer surface 20 b of which are mounted permanent magnets 21 aligned with the magnets 17 in the configuration of Figure 2 In this configuration, the polarity directions CC 'and DD' of the magnets 21 are substantially aligned with the directions AA 'and B-B'. The rotor 20 is provided to rotate about the axis XX 'and drive, thanks to the magnetic coupling made between the magnets 21 and 17, the helix 8 rotating about this axis.

Le rotor 20 est rendu solidaire d'un arbre d'entraînement 22 grâce à une vis 23 disposée dans l'évidement central 20c de la douille 20a selon l'axe X-X' et pénétrant dans un taraudage d'extrémité 22a de l'arbre 22. Le rotor 20 est pourvu d'un alésage axial 20d de réception de l'extrémité 22b de l'arbre 22 dans laquelle est ménagé le taraudage 22a. Une vis 24 est disposée dans un perçage radial de la partie du rotor 20 dans laquelle est ménagé l'alésage 20d, de façon à venir en appui contre la surface radiale externe de l'extrémité 22b de l'arbre 22, de façon à immobiliser en rotation les éléments 20 et 22.The rotor 20 is made integral with a drive shaft 22 through a screw 23 disposed in the central recess 20c of the sleeve 20 has along the axis XX 'and into an end of thread 22 has shaft 22. the rotor 20 is provided with an axial bore 20 for receiving the end 22 b of the shaft 22 in which is provided the internal thread 22a. A screw 24 is disposed in a radial bore of the portion of the rotor 20 in which the bore 20 d is formed so as to bear against the radial outer surface of the end 22b of the shaft 22, so as to immobilize in rotation the elements 20 and 22.

La bride 5 est solidaire d'une entretoise 25 sur laquelle est monté le réducteur 6. L'entretoise 25 définit un logement cylindrique 26 de réception de l'arbre 22.The flange 5 is secured to a spacer 25 on which the gearbox 6 is mounted. The spacer 25 defines a cylindrical housing 26 for receiving the shaft 22.

Un arbre de sortie 27 du réducteur 6 est entraîné par des pignons 28 et 29, le pignon 29 étant en prise, grâce à un arbre 30, avec l'arbre de sortie 31 du moteur 7. L'arbre 27 est creux et définit un volume interne dans lequel peut coulisser l'arbre 22, les arbres 22 et 27 étant solidaires en rotation grâce à une clavette 32. Ainsi, l'arbre 22 peut coulisser à l'intérieur de l'arbre 27 et être entraîné en rotation par celui-ci, grâce à la clavette 32. On note 27a une rainure longitudinale de l'arbre 27 dans laquelle peut coulisser la clavette 32.An output shaft 27 of the gearbox 6 is driven by pinions 28 and 29, the pinion 29 being engaged by a shaft 30 with the output shaft 31 of the motor 7. The shaft 27 is hollow and defines a internal volume in which the shaft 22 can slide, the shafts 22 and 27 being integral in rotation thanks to a key 32. Thus, the shaft 22 can slide inside the shaft 27 and be rotated by the thanks to the key 32. Note 27 has a longitudinal groove of the shaft 27 into which the key 32 can slide.

L'extrémité 22c de l'arbre 22 opposée au rotor 20 est solidaire d'une tige filetée 33 dont une première extrémité 33a est prévue pour pénétrer dans un logement 22d de l'extrémité 22c. Deux vis 34 servent à immobiliser axialement l'extrémité 33a de la tige 33 à l'intérieur du logement 22d.The end 22 c of the shaft 22 opposite the rotor 20 is integral with a threaded rod 33 having one end 33 a is provided to penetrate into a housing 22 of the end 22 c. Two screws 34 are used to axially immobilize the end 33 a of the rod 33 inside the housing 22 d.

La seconde extrémité 33b de la tige 33 coopère avec un écrou 35 fixé à l'extrémité de l'arbre 27 opposée à l'entretoise 25. Un écrou 36 est immobilisé sur l'extrémité 32b de la tige 33 grâce à une goupille 37. Il est ainsi possible d'entraîner en rotation la tige filetée 33 à l'intérieur de l'écrou 35 grâce à l'écrou 36. On a ainsi constitué un système vis-écrou qui, du fait de la position fixe en translation de l'écrou 35 par rapport à l'axe X-X', permet de commander le déplacement en translation de la tige 33, de l'arbre 22 et du rotor 20 entre les deux positions respectivement représentées aux figures 2 et 3. L'écrou 36 constitue donc un moyen de commande du déplacement de ces éléments selon l'axe X-X'.The second end 33 b of the rod 33 cooperates with a nut 35 fixed to the end of shaft 27 opposite to the spacer 25. A nut 36 is immobilized on the end 32 b of the rod 33 through a pin 37. It is thus possible to rotate the threaded rod 33 inside the nut 35 by means of the nut 36. A screw-nut system has thus been formed which, because of the fixed position in translation of the nut 35 with respect to the axis XX ', makes it possible to control the translation displacement of the rod 33, of the shaft 22 and of the rotor 20 between the two positions respectively represented in FIGS. 2 and 3. nut 36 therefore constitutes a means of controlling the displacement of these elements along the axis X-X '.

Un capot 38 est monté sur le réducteur 6 autour de l'extrémité 33b de la tige filetée 33 afin de protéger les éléments 35 à 37. Le capot 38, réalisé en métal ou en matière plastique, peut être vissé ou clipsé sur le réducteur 6.A cover 38 is mounted on the gear 6 about the end 33 b of the threaded rod 33 in order to protect the elements 35 to 37. The cover 38, made of metal or plastic, can be screwed or clipped to the gear 6.

Le fonctionnement est le suivant :The operation is as follows:

A partir de la position de la figure 2, et lorsqu'il est nécessaire de démonter l'hélice 8, on retire le capot 38 et on manoeuvre l'écrou 36 avec un clé dans un sens de dévissage de la tige 33 par rapport à l'écrou 35, de telle sorte que cette tige est progressivement extraite à l'extérieur du tube 27, ce qui a pour conséquence d'entraîner l'arbre 22 en direction de l'écrou 35 jusqu'à la position représentée à la figure 3. Dans cette position, les aimants 17 et 21 ne sont plus en regard, puisque la douille 20a du rotor 20 est parvenue dans une partie du volume intérieur du manchon 10 situé à l'extérieur de la cuve 2. Dans cette position, les directions de polarité C-C' et D-D' des aimants 21 sont décalées par rapport aux directions de polarité A-A et B-B' des aimants 17 d'une distance d telle que l'effort de couplage magnétique entre ces aimants est pratiquement nul. En d'autres termes, il n'existe alors pas d'interaction magnétique notable entre les aimants 17 et 21. L'hélice 8 peut donc être retirée, sans que les forces magnétiques exercées entre les aimants 17 et 21 ne s'y opposent de façon sensible.From the position of Figure 2, and when it is necessary to disassemble the propeller 8, the cover 38 is removed and the nut 36 is operated with a key in a direction of unscrewing the rod 33 relative to the nut 35, so that this rod is progressively extracted outside the tube 27, which has the effect of driving the shaft 22 towards the nut 35 to the position shown in FIG. 3. in this position, the magnets 17 and 21 are no longer opposite each other, since the socket 20 a of the rotor 20 is received in a portion of the inner volume of the sleeve 10 located outside of the tank 2. in this position, polarity directions CC 'and DD' of the magnets 21 are offset with respect to polarity directions AA and BB 'of the magnets 17 by a distance d such that the magnetic coupling force between the magnets is substantially zero. In other words, then there is no significant magnetic interaction between the magnets 17 and 21. The propeller 8 can be removed, without the magnetic forces exerted between the magnets 17 and 21 are opposed in a sensible way.

A la fin des opérations de nettoyage et/ou de maintenance, l'hélice 8 peut être remise en place sans que ne s'exerce sur les aimants 17 un effort d'attraction trop important dû aux aimants 21.At the end of the cleaning and / or maintenance operations, the propeller 8 can be put back in place without being exerted on the magnets 17 an excessive attraction force due to the magnets 21.

Il est alors possible de manoeuvrer l'écrou 36 dans le sens inverse de celui évoqué précédemment, de telle sorte que la tige filetée 33 pénètre à nouveau à l'intérieur du tube 27 et que le rotor 20 est poussé par l'arbre 22 jusqu'à la position de la figure 2 dans laquelle les aimants 17 et 21 sont à nouveau en regard.It is then possible to operate the nut 36 in the opposite direction to that mentioned above, so that the threaded rod 33 again enters the inside of the tube 27 and that the rotor 20 is pushed by the shaft 22 until in the position of Figure 2 in which the magnets 17 and 21 are again facing.

Le déplacement des aimants 21 par rapport aux aimants 17 a lieu perpendiculairement aux efforts d'attraction magnétique qui s'exercent entre ces éléments de couplage magnétique, de sorte que ces efforts ne doivent pas être vaincus alors qu'ils peuvent être particulièrement importants si l'entrefer entre les aimants est réduit. On travaille ici en cisaillement de ces efforts et la manoeuvre du rotor 20 entre les positions des figures 2 et 3 est relativement aisée. De plus, une démultiplication importante peut être obtenue en fonction du pas du filet de la tige 33 et de l'écrou 35.The displacement of the magnets 21 relative to the magnets 17 takes place perpendicular to the magnetic attraction forces exerted between these magnetic coupling elements, so that these efforts must not be overcome while they can be particularly important if the gap between the magnets is reduced . Shearing of these forces is carried out here and the maneuvering of the rotor 20 between the positions of FIGS. 2 and 3 is relatively easy. In addition, a significant reduction can be obtained depending on the pitch of the thread of the rod 33 and the nut 35.

Lors de la remontée du rotor 20 à l'intérieur du manchon 10, il est possible d'interrompre la rotation de la tige filetée 33 dans une position intermédiaire entre celles des figures 2 et 3, une fraction seulement des aimants 21 parvenant au niveau des aimants 17 les plus près du fond de la cuve 2. Dans ces conditions, le couple maximum qui peut être transmis entre le rotor 20 et le fourreau 16 de l'hélice 8 est moins important que dans la position de la figure 2, ce qui s'avère utile lorsqu'on veut limiter le couple pouvant être transmis à l'hélice 8, notamment dans le cas d'un mélange 3 dont la viscosité évolue en fonction du temps, par exemple du fait d'une réaction chimique modifiant cette viscosité. Il est ainsi possible d'éviter l'agitation du mélange à la fin d'une réaction chimique, c'est-à-dire lorsque cette viscosité a atteint une valeur prédéterminée. La valeur du couple maximum transmissible dépend de la proportion des aimants 17 et 21 qui sont en regard et créent un effort de couplage magnétique partiel. Il est possible d'étalonner l'agitateur de l'invention pour déterminer le couple maximum transmissible en fonction de la position du rotor 20. Après cet étalonnage, on peut graduer la tige 33, ce qui permet à un utilisateur de la déplacer vers l'intérieur du tube 27 en fonction du couple limite ou maximum souhaité.When raising the rotor 20 inside the sleeve 10, it is possible to interrupt the rotation of the threaded rod 33 in an intermediate position between those of Figures 2 and 3, only a fraction of the magnets 21 reaching the level of magnets 17 closest to the bottom of the tank 2. Under these conditions, the maximum torque that can be transmitted between the rotor 20 and the sleeve 16 of the helix 8 is less than in the position of Figure 2, which is useful when limiting the torque that can be transmitted to the helix 8, especially in the case of a mixture 3 whose viscosity changes with time, for example due to a chemical reaction modifying this viscosity . It is thus possible to avoid agitation of the mixture at the end of a chemical reaction, that is to say when this viscosity has reached a predetermined value. The value of the maximum transmittable torque depends on the proportion of the magnets 17 and 21 which are opposite and create a partial magnetic coupling force. It is possible to calibrate the agitator of the invention to determine the maximum transmittable torque as a function of the position of the rotor 20. After this calibration, the rod 33 can be graduated, which allows a user to move it to the desired position. inside the tube 27 as a function of the desired limit or maximum torque.

Un dispositif non représenté de détection du mouvement effectif de l'hélice 8 peut être associé à l'agitateur de l'invention pour que l'opérateur soit prévenu lorsque l'hélice 8 ne tourne plus alors que le moteur 6 fonctionne, une telle situation correspondant à une valeur prédéterminée de viscosité pour le mélange 3. L'arrêt du moteur 7 peut être programmé dans ces conditions.An unrepresented device for detecting the effective movement of the helix 8 may be associated with the agitator of the invention so that the operator is warned when the propeller 8 no longer turns while the engine 6 is operating, such a situation. corresponding to a predetermined viscosity value for the mixture 3. The stopping of the motor 7 can be programmed under these conditions.

Lorsque le rotor est positionné dans sa position d'entraînement de l'hélice 8, qu'il s'agisse de la position de la figure 2 ou d'une position intermédiaire, le capot 38 est remonté sur le réducteur 6.When the rotor is positioned in its driving position of the propeller 8, whether in the position of FIG. 2 or in an intermediate position, the cover 38 is reassembled on the gearbox 6.

Dans le mode de réalisation de l'invention représenté à la figure 4, les éléments analogues à ceux du mode de réalisation des figures 1 à 3 portent des références identiques. L'agitateur de ce second mode de réalisation diffère du précédent essentiellement en ce que l'extrémité 33b d'une tige 33', qui n'est pas filetée, est solidaire d'un piston 50 mobile en translation selon l'axe X-X' à l'intérieur d'un cylindre 51, les éléments 50 et 51 appartenant à un vérin pneumatique 52 alimenté en air grâce à deux conduits 53 et 54. En fonction des pressions régnant respectivement dans les chambres définies à l'intérieur du cylindre 51 de part et d'autre du piston 50, la tige 33 est déplacée selon l'axe X-X', ce qui permet de déplacer les aimants 21 du rotor 20 par rapport aux aimants 17 du fourreau 16, comme dans le premier mode de réalisation.In the embodiment of the invention shown in Figure 4, elements similar to those of the embodiment of Figures 1 to 3 bear identical references. The agitator of this second embodiment differs from the previous one essentially in that the end 33b of a rod 33 ', which is not threaded, is integral with a piston 50 movable in translation along the axis XX' inside a cylinder 51, the elements 50 and 51 belonging to a pneumatic jack 52 supplied with air through two ducts 53 and 54. As a function of the pressures respectively prevailing in the chambers defined inside the cylinder 51 of on both sides of the piston 50, the rod 33 is displaced along the axis X-X ', which makes it possible to move the magnets 21 of the rotor 20 relative to the magnets 17 of the sleeve 16, as in the first embodiment .

Bien entendu, le vérin 52 pourrait également être un vérin hydraulique.Of course, the cylinder 52 could also be a hydraulic cylinder.

L'utilisation d'un vérin permet une manoeuvre rapide du rotor 20 à l'intérieur du manchon 10, une telle manoeuvre pouvant être automatisée.The use of a jack allows rapid operation of the rotor 20 inside the sleeve 10, such a maneuver can be automated.

D'autres systèmes de commande du déplacement du rotor 20 à l'intérieur du manchon 10 peuvent être envisagés, notamment un système à ressorts où à cames.Other systems for controlling the displacement of the rotor 20 inside the sleeve 10 may be envisaged, in particular a spring or cam system.

Dans tous les cas, le procédé de réglage du couple limite de transmission d'effort précédemment décrit demeure applicable.In all cases, the method of adjusting the force transmission limit torque previously described remains applicable.

Claims (1)

  1. Method for adjusting the limiting torque for force transmission of an agitator with magnetic drive supported by a collar (5), fitted in a wall (2a) of a receptacle (1) such that a seal is produced and provided with a blind sleeve (10) inside which a rotor (20) supporting first magnetic coupling means (21) is accommodated, whilst a propeller (8) arranged around the said sleeve is equipped with second magnetic coupling means (17) for driving the said propeller about an axis of rotation (X-X'), characterised in that it consists in adjusting the position of the said rotor along the said axis (X-X') in such a way that the said first and second magnetic coupling means (17, 21) are more or less opposite one another.
EP99420233A 1999-01-28 1999-11-26 Method for adjusting the torque for force transmission of a magnetic drive agitator Expired - Lifetime EP1023936B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9901130 1999-01-28
FR9901130A FR2788995B1 (en) 1999-01-28 1999-01-28 MAGNETICALLY DRIVEN AGITATOR AND METHOD FOR ADJUSTING THE LIMIT TORQUE FOR THE TRANSMISSION OF EFFORT OF SUCH AN AGITATOR

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EP1023936A1 EP1023936A1 (en) 2000-08-02
EP1023936B1 EP1023936B1 (en) 2003-01-08
EP1023936B2 true EP1023936B2 (en) 2007-03-07

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EP (1) EP1023936B2 (en)
AT (1) ATE230628T1 (en)
CA (1) CA2291500C (en)
DE (1) DE69904803D1 (en)
FR (1) FR2788995B1 (en)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6416215B1 (en) 1999-12-14 2002-07-09 University Of Kentucky Research Foundation Pumping or mixing system using a levitating magnetic element
US6758593B1 (en) * 2000-10-09 2004-07-06 Levtech, Inc. Pumping or mixing system using a levitating magnetic element, related system components, and related methods
USRE45986E1 (en) 1999-12-16 2016-04-26 Gi Sportz Direct Llc Spring loaded feed mechanism for paintball loader
US6213110B1 (en) 1999-12-16 2001-04-10 Odyssey Paintball Products, Inc. Rapid feed paintball loader
US6837613B2 (en) * 2001-04-10 2005-01-04 Levtech, Inc. Sterile fluid pumping or mixing system and related method
US7086778B2 (en) * 2000-10-09 2006-08-08 Levtech, Inc. System using a levitating, rotating pumping or mixing element and related methods
US7762716B2 (en) * 2000-10-09 2010-07-27 Levtech, Inc. Mixing vessel with a fluid-agitating element supported by a roller bearing
US6543928B2 (en) * 2001-05-04 2003-04-08 General Machine Company Of New Jersey, Inc. Processing vessel and method for mixing powders with a magnetically coupled agitator
CA2462309C (en) * 2001-10-03 2010-12-14 Levtech, Inc. Mixing bag or vessel having a receiver for a fluid-agitating element
JP4018641B2 (en) 2002-04-12 2007-12-05 ナショナル・ペイントボール・サプライ・インコーポレイテッド A difference detection system for controlling the feed of a paintball loader
US6854877B2 (en) * 2002-10-16 2005-02-15 Aseptic Controls Investment Co. Mixer for aseptic liquids
US7186018B2 (en) * 2003-05-07 2007-03-06 Ashland Licensing And Intellectual Property Llc Fuel processing device having magnetic coupling and method of operating thereof
US7168848B2 (en) * 2003-07-02 2007-01-30 Spx Corporation Axial-pumping impeller apparatus and method for magnetically-coupled mixer
JP2005269709A (en) * 2004-03-16 2005-09-29 Maguneo Giken:Kk Magnetic rotation transmitting unit and sealed agitator
US7160023B2 (en) * 2004-03-25 2007-01-09 Itt Manufacturing Enterprises, Inc. System for detachably coupling a drive to a mixer mounted in a portable tank
US7343909B2 (en) * 2004-04-28 2008-03-18 Kee Action Sports I Llc Mechanical drive assist for active feed paintball loader
US7234456B2 (en) * 2004-10-14 2007-06-26 Kee Action Sports Device for feeding balls into the ball chamber of a handgun
US7428899B2 (en) * 2004-10-14 2008-09-30 Kee Action Sports I Llc Device for storing projectile balls and feeding them into the projectile chamber of a gun
US20070017495A1 (en) * 2004-10-14 2007-01-25 Heddies Andresen Procedure and device for feeding balls into the projectile chamber of a handgun
US7694669B2 (en) 2004-12-08 2010-04-13 Kee Action Sports I, Llc Paintball loader feed mechanism
US7396153B2 (en) * 2005-04-05 2008-07-08 Andersson Per-Olof K Ultraclean magnetic mixer
EP1748201B1 (en) * 2005-07-29 2010-12-29 Zeta Biopharma GmbH Magnetic stirrer
US20070056573A1 (en) * 2005-08-05 2007-03-15 National Paintball Supply, Inc. Paintball agitator with anti-jam mechanism
US7921835B2 (en) 2005-09-15 2011-04-12 Kee Action Sports I Llc Wireless projectile loader system
CN101506612A (en) * 2005-10-06 2009-08-12 即动运动有限公司 Self-regulation paintball agitator system
CN101317070A (en) * 2005-10-11 2008-12-03 即动运动有限公司 Magnetic drive bypass system for paintball loader
US8251050B2 (en) 2005-10-11 2012-08-28 Kee Action Sports I Llc Magnetic drive bypass system for paintball loader
WO2007139934A2 (en) * 2006-05-25 2007-12-06 Kee Action Sports I Llc Self-regulating valve assembly
US20100157725A1 (en) * 2007-02-21 2010-06-24 Terentiev Alexandre N Roller Bearing for a Fluid-Agitating Element and Associated Vessel
WO2009015393A2 (en) * 2007-07-26 2009-01-29 Kee Actions Sports I Llc Paintball loader removable drive system
WO2009070766A2 (en) * 2007-11-27 2009-06-04 Board Of Regents, The University Of Texas System Functionalization of micro-and nano particles for selective attachment to calcium biomineral surfaces
US8312871B1 (en) * 2008-01-11 2012-11-20 Donald Lee Kulp Induction drive mechanism for a paintball loader
US8402959B1 (en) 2008-03-19 2013-03-26 Kee Action Sports I Llc Magnetic force feed projectile feeder drive mechanism
US8459245B1 (en) * 2009-01-09 2013-06-11 Budster Enterprises, LLC Induction drive mechanism for a paintball loader
EP2490796B1 (en) * 2009-10-21 2023-09-20 Metenova Holding AB Device for stirring
ES2393378B1 (en) * 2011-06-07 2013-10-31 Electrodomésticos Taurus, S.L. KITCHEN BASKET WITH ROTATING DRIVING MEDIA AND KITCHEN CONTAINER USED WITH SIDE UP
KR101115420B1 (en) * 2011-10-11 2012-02-28 (주) 오스타테크 Accelarating device of mixing and melting liquid
CA2916428C (en) 2013-06-21 2021-10-19 Kee Action Sports I Llc Compressed gas gun having built-in, internal projectile feed mechanism
KR101463225B1 (en) 2013-06-25 2014-11-21 심재일 Discharge and sediment magnetic mixing device structure that is easy to suppress
US10357748B2 (en) * 2014-03-28 2019-07-23 Asepco Magnetically coupled mixer with thrust bearing friction control
CN106423020A (en) * 2016-11-25 2017-02-22 江苏洛尧智慧通信科技有限公司 Small-dose efficient reaction tank
AT518668B1 (en) * 2017-01-25 2017-12-15 Zeta Biopharma Gmbh Agitator for a stirred tank
CN110098537B (en) * 2019-05-16 2020-12-04 嘉兴市新中软计算机系统工程有限公司 Plug-in convenient socket
US11460487B2 (en) * 2019-08-30 2022-10-04 Cnh Industrial Canada, Ltd. Operational control for agricultural agitator
USD961002S1 (en) 2019-12-30 2022-08-16 Kore Outdoor (Us), Inc. Projectile loader
USD992671S1 (en) 2020-10-08 2023-07-18 Canadian Imperial Bank Of Commerce, As Agent Projectile launcher and loader
US20220250020A1 (en) * 2021-02-11 2022-08-11 Leah Lupo Portable warming blender
CA3231495A1 (en) 2021-09-15 2023-03-23 Sanisure, Inc. Low volume magnetic mixing system
CN114471304B (en) * 2022-02-23 2023-02-28 无锡科兰特机械制造有限公司 Magnetic suspension stirring equipment with non-thermal shrinkage type radial sealing mechanism
CN117138644B (en) * 2023-10-25 2024-01-26 一恒生命科学仪器(昆山)有限公司 Electric stirrer

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306076A (en) * 1964-09-15 1967-02-28 Saginaw Machine And Tool Compa Axially adjustable coupling
US3694341A (en) * 1971-01-27 1972-09-26 William R Luck Jr Metal recovery device
US4209259A (en) * 1978-11-01 1980-06-24 Rains Robert L Magnetic mixer
DE3039810A1 (en) * 1980-10-22 1982-05-19 Franz Klaus Union Armaturen, Pumpen Gmbh & Co, 4630 Bochum Magnetic drive for agitator or valve - has canned tube with variable position relationship between emitter and receiver magnets to adjust resilience
JPS60125240A (en) * 1983-12-08 1985-07-04 Ishikawajima Harima Heavy Ind Co Ltd Leakage free stirrer
JPS6331528A (en) * 1986-07-23 1988-02-10 Satake Kagaku Kikai Kogyo Kk Stirring apparatus
US4993841A (en) * 1987-02-05 1991-02-19 Steridose Systems Ab Magnetic impeller means for a mixing vessel
JPH0622665B2 (en) * 1987-08-25 1994-03-30 日本碍子株式会社 Air-sealed closed reaction vessel
JPH01130722A (en) * 1987-11-18 1989-05-23 Komatsugawa Kakoki Kk Agitation device
IT1225238B (en) * 1988-09-23 1990-11-02 Co Ra Di Lardieri Salvatore MAGNETIC DRIVE AGITATION GROUP
SE462834B (en) * 1989-05-26 1990-09-10 Steridose Systems Ab DRIVING DEVICE FOR A MOVER, WHICH IS VOLTABLE STORED INTO A TANK FOR MOVING AND MIXING STERILE WASHERS
SE463750B (en) * 1989-05-26 1991-01-21 Steridose Systems Ab MOVER FOR ASEPTIC PURPOSES, WHICH WILL BE PULLABLE IN A PRE-DETERMINED ROTATION DIRECTION THROUGH INDUCTIVE DRIVER INSIDE A TANK
IT1230331B (en) * 1989-07-12 1991-10-18 Fedegari Autoclavi IMPROVED MAGNETIC METHOD FOR TRANSMISSION OF MOVEMENT THROUGH WALLS OF CLOSED CONTAINERS OR CONTAINERS.
FR2656948B1 (en) * 1990-01-11 1994-02-25 Sgn Ste Gle Techniques Nles AGITATOR CONTROL ASSEMBLY, PARTICULARLY FOR A DECANTER MIXER EQUIPPED WITH A NUCLEAR FUEL PROCESSING PLANT.
DE4232934C2 (en) * 1992-10-01 1996-03-28 Mavag Verfahrenstech Ag Double impeller for stirring sterile liquids
US5533803A (en) * 1992-10-01 1996-07-09 Mavag Verfahrenstechnik Ag Magnetic stirring apparatus with contactless coupling between stirring shaft and stirring tool
DE4232936C2 (en) * 1992-10-01 1996-03-28 Mavag Verfahrenstech Ag Impeller for stirring sterile liquids
DE4235498A1 (en) * 1992-10-21 1994-04-28 Herfeld Gmbh & Co Kg Dr Slidable boss mixing impeller - has improved cleaning access for bottom or side wall entry drive shafts in batch mixers
JP2596881B2 (en) * 1992-12-24 1997-04-02 株式会社荏原製作所 Magnet type non-seal stirrer
US5364184A (en) * 1993-02-23 1994-11-15 General Signal Corporation Coupling method for high power magnetic devices
US5378062A (en) * 1993-02-23 1995-01-03 General Signal Corporation Transfer assembly for disassembly device
US5470152A (en) * 1993-02-23 1995-11-28 General Signal Corporation Radially mounted magnetic coupling
DE4310266A1 (en) * 1993-03-30 1994-10-06 Draiswerke Gmbh mixer
SE506647C2 (en) * 1994-11-03 1998-01-26 Sunds Defibrator Ind Ab mixing device
US5478149A (en) * 1995-04-24 1995-12-26 Magnetic Mixers, Inc. Magnetic mixer
US5708313A (en) * 1996-10-28 1998-01-13 Finish Thompson Inc. Sump pump
US5758965A (en) * 1996-12-05 1998-06-02 General Signal Corporation Mixer system
US5779359A (en) * 1996-12-05 1998-07-14 General Signal Corporation Mixer having exposed clean-in-place bearing assemblies

Also Published As

Publication number Publication date
EP1023936B1 (en) 2003-01-08
CA2291500A1 (en) 2000-07-28
DE69904803D1 (en) 2003-02-13
US6206562B1 (en) 2001-03-27
ATE230628T1 (en) 2003-01-15
EP1023936A1 (en) 2000-08-02
CA2291500C (en) 2008-05-27
FR2788995B1 (en) 2001-04-06
FR2788995A1 (en) 2000-08-04

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