CA1207135A

CA1207135A - Method for assembling an o-ring and a metal armature in a composite insulator, and insulator thus made

Info

Publication number: CA1207135A
Application number: CA000406216A
Authority: CA
Inventors: Jacques Bouchez
Original assignee: Ceraver SA
Current assignee: Ceraver SA
Priority date: 1981-06-30
Filing date: 1982-06-29
Publication date: 1986-07-08
Also published as: IT1155704B; FR2514546B1; IT8267820A0; GB2104171A; FR2514546A1

Abstract

Procédé pour réaliser une liaison entre un jonc et une armature métallique dans un isolateur composite et isolateur composite obtenu par ce procédé. On met en oeuvre un tube en métal ductile, on introduit par les extrémités du tube respectivement une armature et une extrémité du jonc et on réalise un manchonnage de ces dernières. Le manchon est avantageusement obturé entre l'armature et le jonc.Method for making a connection between a rod and a metal frame in a composite insulator and composite insulator obtained by this method. A ductile metal tube is used, a reinforcement and an end of the rod are introduced through the ends of the tube respectively and the latter is sleeved. The sleeve is advantageously closed between the frame and the rod.

Description

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L~ présente i~Vention co~cexn,e U~ p~ocede pour réaliser une ~iaison entre un. jon,c et une a~mature metallique dans un isolat.eur composite et elle concerne egalement un isolateur composlte o~tenu par ce procede~
On sait qu'un isolateur composite comporte notamment un jonc en matière synt~eti~ue et des armatures d'extremites metalliques~ On conna~t un ,mode de liaison jonc~armature par retreint selon lequel chaquè armature presente une cavite borgne dans laquelle est inseree une extrémite du jonc; on opere ensuite un retreint de l'a~mature sur le jonc. On conçoit qu'un tel proce~e soit di~ficile ~
met~re en oeuvre lorsque l'armature est en un materiau particulièrement dur, par exemple en acier ~orge.
La presente invention a pour but d'eviter ces inconvenients.
Elle a pour objet un procede pour realiser une liaison entre l'extremite dlun jonc en materiau composite et une ferrure metallique dans un isolateur organique, caracterise par le fait que l'on choisit 19 extremite de la ferrure metallique cylindrique et sensiblement de m~me diametre que l'extremite du jonc, que l'on met en oeuvre , un tube en un metal ductile, que l'on introduit par les j extremites de ce tube respectivement l'extremite de la ferrure et l'extremite du jonc et que l'on realise un manchonnage de ces deux extremites, Le manchonnage peut être obtenu par un procede quelconque de formage, par compression ou etirage. Ainsi, on peut utilisar une machine du genre de celle qui est employee pour manchonner les câbles utilises pour le transport de l'energie electrique; on peut egalement operer par compression isostatique au moyen d'un manchon en caoutchouc; on peut aussi utiliser le magneto-formage.
Le tube peut comporter dans sa paxtie ce~trale un renforcement ~ecani~ue sous fox~e de. nerV~res ou de B `~:~

~'7~L35 surepaisseurs de metal préeXis~a~tes au.rap~or~ées.
Selon un ~ode de ~ealisa~on u~ jo~n.t est dispose ~ l'interieur du ~anchon entre les ~aces en regard de l'armature et d.u jonc~ Ce joint peut être un bouchon en elastomere disposé dans le tube aVant l~opera-tion de manchonnage; la zone du tube ~!Ul l~entoure est avantageuse~ent retreinte sux lui.
Selon une autre variante, le ~oint est une resine injectee apre~s l'operation de manchonnage par un trou presente par le tu~e et situe entre les faces du jonc et de l'armature.
! Selon une autre ~ariante, le tu~e peut ~tre initialement obstrue dans sa partie centrale par un voile ou une rondelle metallique. Afin de ne pas e~o~m~ger le jonc au moment du manchonnage on peut rev~tir preala-blement sa surface d'une resine, formant lubrifiant avant son durcissement, ou d'un voile de verre impregne de resine, ou d'un voile de talc servant ~e lubrifiant, ou : analogue.
L'invention a egalement pour objet un isolateur organique comportant un jonc en materiau composite et au moins une ferrure d'extremite metallique, caracterise par le fait que l'extremite de ladite ferrure metallique a sensible~ent le même diametre qu'une extremite dudit jonc, et qu'un tube en metal ductile manchonne enserre ~ la fois ladite extremite de la ferrure et ladite extremite du jonc.
Des exemples de realisation vont être decrits à
l'aide du dessin annexe donne à titre illustratif mais nullement limitatif et dans lequel les figures 1 et 2 sont deux vues partiellement coupees de deux variantes~
On voit sur la figure 1 un tube 3 en metal ductile qui a ete manchonne d~une part sur-un jonc 2 en materiau composite synthetique, et d'autre part sur une 35 armature metal~ique 1, ou ferrure metallique, par exemple ~ z ~

L ~ presents i ~ Vention co ~ cexn, e U ~ p ~ ocede to make a ~ iaison between one. jon, c and a mature a ~
metallic in a composite isolator and it concerns also a composlte insulator o ~ held by this process ~
We know that a composite insulator includes in particular a rush in synt ~ eti ~ eu material and end fittings Metallic ~ We know ~ t a rod connection mode ~ armature by constraint according to which each reinforcement presents a blind cavity into which an extremity of the rush; we then operate a shrinking of the mature a ~ on the rush. It is understood that such a proce ~ e is di ~ ficile ~
implements when the frame is made of a material particularly hard, for example steel ~ barley.
The object of the present invention is to avoid these disadvantages.
It relates to a method for carrying out a connection between the end of a rod in composite material and a metal fitting in an organic insulator, characterized by the fact that we choose 19 extremity of the cylindrical metal fitting and substantially the same diameter than the end of the rod, which is used , a tube made of a ductile metal, which is introduced by the j ends of this tube respectively the end of the fitting and the end of the rod and that a sleeving of these two ends, The sleeving can be obtained by a process any form, compression or stretching. So, we can use a machine like this used to sleeving cables used for transport of electrical energy; we can also operate by isostatic compression using a sleeve made of rubber; you can also use the magneto-forming.
The tube may include in its paxtie this ~ trale a strengthening ~ ecani ~ eu under fox ~ e of. nerves or B `~: ~

~ '7 ~ L35 metal thicknesses préeXis ~ a ~ tes au.rap ~ or ~ ées.
According to a ~ ode of ~ ealisa ~ on u ~ jo ~ nt is has ~ inside the ~ anchon between the ~ aces in look of the frame and the rod ~ This joint can be a elastomer plug placed in the tube before the opera sleeving; the tube area ~! Ul surrounds it is advantageous ~ ent shrink sux him.
According to another variant, the ~ anointed is a resin injected after the sleeving operation by a hole presented by the tu ~ e and located between the faces of the rod and frame.
! According to another ~ ariante, the tu ~ e can ~
initially obstructed in its central part by a veil or a metal washer. In order not to e ~ o ~ m ~ manage the ring at the time of sleeving we can rev ~ preala- shot its surface of a resin, forming lubricant before its hardening, or a glass veil impregnated with resin, or a talc veil serving as a lubricant, or : similar.
The invention also relates to an insulator organic comprising a rod made of composite material and minus a metal end fitting, characterized by the fact that the end of said metal fitting a sensitive ~ ent the same diameter as one end of said rod, and that a ductile metal tube sleeves grips ~ both said end of the fitting and said end of the rod.
Examples of realization will be described at using the accompanying drawing is illustrative but in no way limiting and in which FIGS. 1 and 2 are two partially cut views of two variants ~
We see in Figure 1 a metal tube 3 ductile which was sleeved on the one hand on a rod 2 in synthetic composite material, and on the other hand on a 35 metal frame ~ ique 1, or metal fitting, for example

- 2 -B.

,, ~7~L35 e~ acier ~oxge, ~a, p~t~e exte~e ~e l'ax~m.a~tu~e est lci un bouto~ 4, ~is ce pourrait êt~e u~e c~pe, 'u~ tenon, un ball-socket e~c,~. Un joint de caoutc~ouc 5 a eté
interpose entre l,e jonc et. l~armature et le tube 3 a ete retreint en 6 sur,~ ce joint pour realiser l~etancheite.
On voit sur la figure 2 un tu~e 13 manchonne sur un jonc 12 et sur une arma,ture 11 terminee par une chape 14. L~armature presente des cannel~res 19; de m~me le jonc presente ~es zones d~ancrage 18. Par une ouverture 17 de la zone retreinte 16 du'tube 13, on introduit une resine 15 qui fait etancheite en bouchant l'ouverture 17.
Bien entendu l~invention n~est pas llmitee aux formes decrltes et representees. L~invention s'applique ~ toute jonction d~une piece metallique avec un barreau en matière synthetique, Les domaines d~application pre~erentiels sont:
- les isolateurs suspendus et rigides - les isolateurs de type ~console isolante~
les ecarteurs de phase. - 2 -B.

,, ~ 7 ~ L35 e ~ steel ~ oxge, ~ a, p ~ t ~ e exte ~ e ~ e ax ~ ma ~ tu ~ e is here a bouto ~ 4, ~ is it could be ~ eu ~ ec ~ pe, 'u ~ tenon, a ball-socket e ~ c, ~. A rubber seal ~ ouc 5 has been interpose between the rush and. frame and tube 3a was constricted in 6 on, ~ this joint to achieve sealing.
We see in Figure 2 a tu ~ e 13 sleeve on a rod 12 and on an arma, ture 11 ending with a yoke 14. The frame has grooves 19 res; of even the rod presents anchoring zones 18. By a opening 17 of the restricted area 16 of the tube 13, we introduces a resin 15 which seals by plugging opening 17.
Of course, the invention is not limited to shapes shown and shown. The invention applies ~ any junction of a metal piece with a bar in synthetic material, The main areas of application are:
- suspended and rigid insulators - type insulators ~ insulating console ~
phase spacers.

- 3 ~ - 3 ~

Claims

The realizations of the invention on the subject of-which an exclusive property or privilege is claimed, are defined as follows:

1. Process for making a connection between the ex-end of a rod in composite material and a fitting metallic in an organic insulator, characterized by we choose the end of the metal fitting that cylindrical and roughly the same diameter as the end of the rod, which is implemented a tube in one ductile metal, which is introduced through the ends of this tube respectively the end of the fitting and the end of the rod and that a sleeving of these two ends.

2. Method according to claim 1, character-laughed at by the fact that the sleeving is carried out by a process chosen from the processes of the group consisting of forming, stretching, magneto-forming and isostatic compression.

3. Method according to one of claims 1 and 2, characterized in that, prior to sleeving there is an elastomer plug between said end of the rod and said fitting.

4. Method according to one of claims 1 and 2, characterized in that said ends of the rod and the fitting form two parallel faces spaced from each other and facing each other, and characterized further by the fact that said tube having a opening located between said facing faces, injects through this opening a resin between said sides, after the sleeving operation.

5. Method according to one of claims 1 and 2, characterized in that a tube is chosen initially obstructed in its central part by a metallic veil.

6. Method according to one of claims 1 and 2, characterized in that a tube is chosen having in its central part a reinforcement mechanical chosen from the mechanical reinforcements of the group made up of ribs, metal thicknesses pre-existing and reported excess thicknesses of metal.

7. Method according to claim 1, character-laughed at by the fact that, prior to said sleeving, the rod is protected by a lubricating means chosen from the group of lubricating means consisting of a resin, a glass veil and a talc veil.

8. Organic insulator comprising a rod in composite material and at least one end fitting metallic, characterized in that the end of said metal fitting has substantially the same diameter that one end of said rod, and that a metal tube sleeved ductile encloses both said end of the fitting and said end of the rod.