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FR2506423A1 - Orientable joint for pipework - has circular array of ball-bearings mounted between nut and socket to reduce friction - Google Patents

Orientable joint for pipework - has circular array of ball-bearings mounted between nut and socket to reduce friction Download PDF

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Publication number
FR2506423A1
FR2506423A1 FR8110665A FR8110665A FR2506423A1 FR 2506423 A1 FR2506423 A1 FR 2506423A1 FR 8110665 A FR8110665 A FR 8110665A FR 8110665 A FR8110665 A FR 8110665A FR 2506423 A1 FR2506423 A1 FR 2506423A1
Authority
FR
France
Prior art keywords
nut
socket
balls
orientable
tubular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR8110665A
Other languages
French (fr)
Inventor
Maurice-Louis Bosonnet
Gerard Disparti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MB USINAGE PRECISION
Original Assignee
MB USINAGE PRECISION
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MB USINAGE PRECISION filed Critical MB USINAGE PRECISION
Priority to FR8110665A priority Critical patent/FR2506423A1/en
Publication of FR2506423A1 publication Critical patent/FR2506423A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00Adjustable joints; Joints allowing movement
    • F16L27/08Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/0804Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
    • F16L27/0808Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
    • F16L27/0824Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings
    • F16L27/0828Adjustable joints; Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings having radial bearings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The socket (5) has one end (7) that is welded onto one tube end (1) and the other end (9) is truncated and receives a tubular ferrule (4) that is threaded on the outside (17). A screw nut (6) is mounted so as to rotate freely about the socket (5) but is joined axially to it by the ballbearings (14). The ballbearings sit in two annular housings (11,13) facing each other, one made in the socket, the other in the screw nut. The ballbearings are introduced into the housing via a radial passage in the screw nut that can then be sealed.

Description

La présente invention se rapporte à un raccord tubulaire orientable et, plus particulièrement, à un raccord du type de ceux comprenant, dtune part, une douille dont une extrémité est destinée à être fixée, notamment par soudure, sur un élément tubulaire, et dont l'autre extrémité présente une portée tronconique destinée à recevoir un embout tubulaire fileté extérieurement, et d'autre part, un écrou monté libre en rotation autour de la douille mais lié axialement à celle-ci, ledit écrou se vissant sur le filetage de l'embout. The present invention relates to an orientable tubular connector and, more particularly, to a connector of the type comprising those, on the one hand, a bushing, one end of which is intended to be fixed, in particular by welding, to a tubular element, and the 'other end has a frustoconical bearing intended to receive an externally threaded tubular end piece, and on the other hand, a nut mounted free in rotation around the socket but axially connected to the latter, said nut screwing onto the thread of the mouthpiece.

Un tel raccord permet de réunir, par vissage, deux éléments de tuyauterie, ou un élément de tuyauterie et un réservoir, l'un et l'autre fixes. Le vissage de écrou applique et serre l'embout contre la portée tronconique de la douille, l'embout pouvant être orienté relativement au raccord avant le vissage à fond de l'écrou. Such a connection makes it possible to join, by screwing, two pipe elements, or a pipe element and a tank, both fixed. The screwing of the nut applies and tightens the end piece against the frustoconical bearing of the socket, the end piece being able to be oriented relative to the fitting before the nut is fully screwed.

En l'état actuel de la technique pour ce genre de raccords tubulaires, la liaison axiale entre la douille et l'écrou se trouve réalisée au moyen d'un jonc annulaire, introduit dans deux gorges annulaires situées en vis-a-vis et appartenant l'une à la douille, l'autre à l'écrou. La mise en place du jonc dans ces gorges s'effectue au travers d'un perçage tangentiel réalisé dans l'écrou. Cet agencement présente les inconvénients suivants
- D'une part, la mise en place du jonc pose des difficultés, en particulier dans le cas de raccords de diamètre important.
In the current state of the art for this type of tubular connection, the axial connection between the sleeve and the nut is achieved by means of an annular ring, introduced into two annular grooves located opposite and belonging one at the socket, the other at the nut. The installation of the rod in these grooves is carried out through a tangential drilling made in the nut. This arrangement has the following disadvantages
- On the one hand, the installation of the rod poses difficulties, in particular in the case of large diameter fittings.

- D'autre part, lors de l'utilisation du raccord, le jonc assure un glissement très imparfait pour le mouve# ment de rotation de écrou, et il est plutôt la cause de frottements. - On the other hand, when using the fitting, the ring ensures a very imperfect sliding for the nut rotation movement, and it is rather the cause of friction.

La présente invention vise A remédier à ces inconvénients. The present invention aims to remedy these drawbacks.

A cet effet, elle a pour objet un raccord tubulaire orientable, du type rappelé plus haut, dans lequel la liai
son axiale entre la douille et écrou est réalisée au moyen de billes, introduites dans deux gorges annulaires situées en vis#a'-vis et appartenant l'une à la douille, l'autre à l'écrou, les billes étant introduites dans ces gorges au travers d'un passage radial réalisé dans l'écrou et apte à être obturé apres introduction desdites billes.
To this end, it relates to an orientable tubular connection, of the type mentioned above, in which the connection
its axial between the sleeve and nut is produced by means of balls, introduced into two annular grooves located in screw # a'-vis and belonging one to the sleeve, the other to the nut, the balls being introduced into these grooves through a radial passage formed in the nut and capable of being closed after introduction of said balls.

On comprend que les billes permettent un roulement très doux de 1'écrou dans son mouvement. de rotation autour de la douille. De plus, ces billes s'introduisent facile ment dans les gorges destinées à les recevoir, en se mettant on place "automatiquement" par roulement. Après introduction de toutes les billes, le passage radial de l'écrou est obturé, soit d'une façon définitive, soit par un moyen qui permet en démontage éventuel, en utilisant par exemple un pion emmanché serré ou une vis sans tata,
De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, a titre d'exemple non limitatif, une forme d'exécution de ce raccord tubulaire orientable, et illustrant une application possible de ce raccord
Figure 1 montre, très schématiquement, un serpentin et un réservoir connectés au moyen du raccord objet de l'invention ;
Figure 2 est une vue de côté, avec demiecoupe, de ce raccord, avec indication des extrémités des éléments â con necter
Figure 3 est une vue en coupe transversale du même raccord, suivant 3-3 de figure 2.
It is understood that the balls allow a very smooth rolling of the nut in its movement. of rotation around the socket. In addition, these balls are easily introduced into the grooves intended to receive them, by being placed "automatically" by rolling. After introduction of all the balls, the radial passage of the nut is closed, either permanently, or by means which allows for possible disassembly, for example using a tight fitted pin or a screw without a tata,
In any case, the invention will be better understood with the aid of the description which follows, with reference to the appended schematic drawing representing, by way of nonlimiting example, an embodiment of this orientable tubular connection, and illustrating a possible application of this fitting
Figure 1 shows, very schematically, a coil and a tank connected by means of the connector object of the invention;
Figure 2 is a side view, with half-cut, of this fitting, with indication of the ends of the elements to be connected
Figure 3 is a cross-sectional view of the same fitting, along 3-3 of Figure 2.

La figure 1 montre un serpentin fixe 1 et un réservoir également fixe 2, connectés au moyen du raccord tubulaire objet de l'invention, désigné dans son ensemble par le repère i. Ce raccord 3 est prévu pour être, d'un côté, soudé sur l'extrémité du serpentin 1 et, de l'autre côté, vissé sur un embout 4 que comporte le réservoir 2. Figure 1 shows a fixed coil 1 and a also fixed tank 2, connected by means of the tubular connector object of the invention, generally designated by the reference i. This connector 3 is designed to be, on one side, welded to the end of the coil 1 and, on the other side, screwed onto an end piece 4 that comprises the reservoir 2.

Le raccord 1, représenté en détail sur les figures 2 et 3, se compose essentiellement d'une douille 2 et d'un écrou 6.  The connector 1, shown in detail in FIGS. 2 and 3, essentially consists of a socket 2 and a nut 6.

La douille 2 possède une première extrémité Z, destinée à être soudée sur le serpentin I ou sur tout autre élément tubulaire, et une seconde extrémité 8 de plus faible diamètre, présentant une portée tronconique 9 destinée à recevoir l'embout 4 qui possède une partie tronconique complémentaire 10. Sur la partie de plus faible diamètre de la douille 5, est ménagée une gorge annulaire extérieure 11, de profil semi-circulaire. The sleeve 2 has a first end Z, intended to be welded to the coil I or to any other tubular element, and a second end 8 of smaller diameter, having a frustoconical bearing 9 intended to receive the end piece 4 which has a part complementary frustoconical 10. On the portion of smaller diameter of the sleeve 5, is formed an outer annular groove 11, of semi-circular profile.

L'écrou 6 possède intérieurement une partie taraudée 12, et une partie lisse dans laquelle est creusée une gorge annulaire intérieure t3, de profil semi-circulaire. Des billes 14 sont introduites dans les deux gorges annulaires
Il et fl appartenant respectivement à la douille 5 et à l'écrou 6, de manière à retenir axialement l'écrou 6 sur la douille 5, tout en laissant cet ecrou 6 libre en rotation autour de ladite douille 5.
The nut 6 has internally a threaded part 12, and a smooth part in which is hollowed an internal annular groove t3, of semi-circular profile. Balls 14 are introduced into the two annular grooves
It and fl respectively belonging to the socket 5 and to the nut 6, so as to axially retain the nut 6 on the socket 5, while leaving this nut 6 free to rotate around said socket 5.

Comme le montre la figure 3, l'introduction des billes 14 dans les gorges Il et li est effectuée au travers d'un passage radial 15 réalisé dans l'écrou 6. Après l'introduction de toutes les billes 14, le passage 15 de l'écrou 6 est obturé au moyen d'un pion 16 emmanché serré. En varias te, le passage radial 15 de l'écrou 6 pourrait être taraudé et obturé, après introduction des billes 14, au moyen d'une vis sans tête. As shown in FIG. 3, the introduction of the balls 14 into the grooves Il and li is carried out through a radial passage 15 produced in the nut 6. After the introduction of all the balls 14, the passage 15 of the nut 6 is closed by means of a pin 16 fitted tightly. In varias te, the radial passage 15 of the nut 6 could be tapped and closed, after introduction of the balls 14, by means of a grub screw.

La partie taraudée 12 de l'écrou 6 correspond bien entendu au filetage 17 de l'embout 4. En vissant l'écrou 6 sur ce filetage#, on rapproche l'embout i de la douille 5,
Jusqu'à ce que la partie tronconique 10 de l'embout 4 soit appliquée et serrée contre la portée tronconique 9 de la douille 5.
The threaded part 12 of the nut 6 obviously corresponds to the thread 17 of the end piece 4. By screwing the nut 6 onto this thread #, the end piece i is brought closer to the socket 5,
Until the frustoconical part 10 of the endpiece 4 is applied and tightened against the frustoconical surface 9 of the sleeve 5.

Bien entendu, l'invention ne se limite pas à la seule forme d'exécution de ce raccord tubulaire orientable qui a été décrite ci-dessus, à titre d'exemple; elle en embrasse, au contraire, toutes les variantes de réalisation et d'application conçues selon le même principe, quels que soient notamment la nature et le diamètre relatif des deux éléments
tubulaires raccordés.
Of course, the invention is not limited to the only embodiment of this orientable tubular connection which has been described above, by way of example; on the contrary, it embraces all of the variant embodiments and of applications designed according to the same principle, whatever the nature and relative diameter of the two elements in particular.
connected tubulars.

Claims (1)

- REVENDICATIONS 1.- Raccord tubulaire orientable, du type de ceux comprenant, d'une part une douille dont une extrémité (7) est destinée a être fixée, notamment par soudure,sur un élément tubulaire (1), et dont l'autre extrémité (7) présente une portée tronconique (9) destinée à recevoir un embout tubulaire (4) fileté extérieurement, et d'autre part, un écrou (6) montée libre en rotation autour de la douille (5) mais lié axialement à celle-ci, ledit écrou (6) se vissant sur le filetage (17) de l'embout (4), caractérisé en ce que la liaison axiale entre la douille (5) et l'écrou (6) est réalisée au moyen de billes (14), introduites dans deux gorges annulaires (11, 13) situées en vis-àvis et appartenant l'une à la douille (5), l'autre à l'écrou (6), les billes (14) étant introduites dans ces gorges (11,- CLAIMS 1.- Orientable tubular connection, of the type comprising, on the one hand a socket, one end (7) of which is intended to be fixed, in particular by welding, on a tubular element (1), and the other of which end (7) has a frustoconical surface (9) intended to receive a tubular end piece (4) threaded externally, and on the other hand, a nut (6) mounted free in rotation around the bushing (5) but axially connected to that -this, said nut (6) screwing onto the thread (17) of the end piece (4), characterized in that the axial connection between the sleeve (5) and the nut (6) is produced by means of balls (14), introduced into two annular grooves (11, 13) located opposite and one belonging to the sleeve (5), the other to the nut (6), the balls (14) being introduced into these gorges (11, 13) au travers d'un passage radial (15) réalisé dans l'écrou (6) et apte à être obturé après introduction desdites billes (14). 13) through a radial passage (15) produced in the nut (6) and capable of being closed after introduction of said balls (14). 2.- Raccord tubulaire orientable selon la revendication 1, caractérisé en ce que le passage radial (15) de l'écrou (6) est obturé, après introduction des billes (14), au moyen d'un pion (16) emmanché serré. 2.- swiveling tubular connection according to claim 1, characterized in that the radial passage (15) of the nut (6) is closed, after introduction of the balls (14), by means of a pin (16) fitted tight . 3. - Raccord tubulaire orientable selon la revendication 1, caractérisé en ce que le passage radial (15) de l'écrou (6) est taraudé et obturé, après introduction des billes (14), au moyen d'une vis sans tête.  3. - Orientable tubular connection according to claim 1, characterized in that the radial passage (15) of the nut (6) is tapped and closed, after introduction of the balls (14), by means of a grub screw.
FR8110665A 1981-05-22 1981-05-22 Orientable joint for pipework - has circular array of ball-bearings mounted between nut and socket to reduce friction Withdrawn FR2506423A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8110665A FR2506423A1 (en) 1981-05-22 1981-05-22 Orientable joint for pipework - has circular array of ball-bearings mounted between nut and socket to reduce friction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8110665A FR2506423A1 (en) 1981-05-22 1981-05-22 Orientable joint for pipework - has circular array of ball-bearings mounted between nut and socket to reduce friction

Publications (1)

Publication Number Publication Date
FR2506423A1 true FR2506423A1 (en) 1982-11-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR8110665A Withdrawn FR2506423A1 (en) 1981-05-22 1981-05-22 Orientable joint for pipework - has circular array of ball-bearings mounted between nut and socket to reduce friction

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FR (1) FR2506423A1 (en)

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