FR2686660A1 - METHOD FOR FIXING A SEAL ON A CYLINDRICAL HOUSING AND METHOD FOR FIXING A SEAL ON A TRANSMISSION JOINT HOUSING AND ON A SHAFT. - Google Patents

METHOD FOR FIXING A SEAL ON A CYLINDRICAL HOUSING AND METHOD FOR FIXING A SEAL ON A TRANSMISSION JOINT HOUSING AND ON A SHAFT. Download PDF

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Publication number
FR2686660A1
FR2686660A1 FR9300403A FR9300403A FR2686660A1 FR 2686660 A1 FR2686660 A1 FR 2686660A1 FR 9300403 A FR9300403 A FR 9300403A FR 9300403 A FR9300403 A FR 9300403A FR 2686660 A1 FR2686660 A1 FR 2686660A1
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FR
France
Prior art keywords
seal
housing
fixing
shaft
collar
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.)
Granted
Application number
FR9300403A
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French (fr)
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FR2686660B1 (en
Inventor
Vanophem Mark John
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.)
GKN Driveline North America Inc
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GKN Automotive Inc
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Filing date
Publication date
Application filed by GKN Automotive Inc filed Critical GKN Automotive Inc
Publication of FR2686660A1 publication Critical patent/FR2686660A1/en
Application granted granted Critical
Publication of FR2686660B1 publication Critical patent/FR2686660B1/fr
Granted legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12463—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being tapered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73715—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable heat-shrinkable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B4/00—Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits; Non-releasable friction-grip fastenings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F16D3/224—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines in each coupling part lying on a sphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/041—Non-metallic bellows
    • F16J3/042—Fastening details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/703—Bellows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
    • F16D2003/22316—Means for fastening or attaching the bellows or gaiters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Motor Power Transmission Devices (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

Le procédé consiste à positionner une première extrémité (36, 24) de la garniture d'étanchéité (20) par-dessus le boîtier cylindrique (30, 22), à chauffer cette première extrémité (36, 24) de la garniture d'étanchéité (20) au-delà du point de fusion de la matière de cette garniture d'étanchéité (20) et à refroidir la première extrémité (36, 24) de la garniture d'étanchéité (20) et laisser cette première extrémité (36, 24) de la garniture d'étanchéité (20) se rétracter sur le boîtier (30, 22).The method consists in positioning a first end (36, 24) of the seal (20) over the cylindrical housing (30, 22), in heating this first end (36, 24) of the seal (20) beyond the melting point of the material of this seal (20) and to cool the first end (36, 24) of the seal (20) and leave this first end (36, 24) of the seal (20) retract on the housing (30, 22).

Description

La présente invention concerne d'une manière générale un procédé permet-The present invention relates generally to a process allowing

tant de fixer une garniture d'étanchéité sur un boîtier cylindrique Elle concerne plus particulièrement la fixation d'un soufflet d'étanchéité sur un boîtier de joint de  both to fix a seal on a cylindrical housing It relates more particularly to the fixing of a sealing bellows on a seal housing

transmission homocinétique et sur un arbre.  constant velocity transmission and on a tree.

Les véhicules à roues avant motrices utilisent une paire d'ensembles de  Front-wheel drive vehicles use a pair of

demi-arbre pour transmettre la puissance de la transmission aux roues avant.  half shaft to transmit the power of the transmission to the front wheels.

Chaque ensemble de demi-arbre comprend deux joints, notamment homociné-  Each half-shaft assembly includes two seals, in particular homociné-

tiques, réunis par un arbre de liaison L'un des joints est relié à la roue avant.  ticks, joined by a connecting shaft One of the seals is connected to the front wheel.

L'autre joint est relié à la transmission.  The other seal is connected to the transmission.

Le joint homocinétique disposé du côté de la roue est un joint homocinétique à centre fixe ou à fixité axiale Ce joint est susceptible de s'adapter à des angles élevés ( 450 à 500) La capacité angulaire élevée de ce joint permet aux roues avant  The constant velocity joint located on the side of the wheel is a constant center or axial fixed velocity joint This joint is capable of adapting to high angles (450 to 500) The high angular capacity of this joint allows the front wheels

de s'adapter aux angles de braquage.  to adapt to the steering angles.

Le joint homocinétique disposé du côté de l'arbre de la transmission est un joint de type coulissant ou télescopique Ce joint comporte un centre de rotation mobile et peut s'adapter à des angles de 200 à 250 Le centre de rotation mobile et la capacité angulaire du joint permettent une adaptation aux tolérances de  The constant velocity joint located on the side of the transmission shaft is a sliding or telescopic type joint This joint has a movable center of rotation and can be adapted to angles from 200 to 250 The movable center of rotation and angular capacity of the seal allow adaptation to the tolerances of

construction du véhicule, aux déplacements de la suspension, ainsi qu'aux vibra-  vehicle construction, suspension displacements, as well as vibrations

tions du moteur.engine.

Les joints homocinétiques exigent une alimentation constante en lubrifiant pour fonctionner dans ce dernier Normalement, ce lubrifiant est contenu dans une  CV joints require a constant supply of lubricant to function in the latter Normally, this lubricant is contained in a

chambre formée par une garniture d'étanchéité ou soufflet de protection La garni-  chamber formed by a seal or protective bellows The seal

ture d'étanchéité est habituellement en une matière flexible, soit du caoutchouc, soit une matière plastique A l'une de ses extrémités, le soufflet de protection est fixé sur le diamètre extérieur du corps, ou boîtier du joint L'autre extrémité est fixée à l'arbre de liaison Cet agencement crée une chambre -de forme sensiblement conique qui est remplie d'une quantité prédéterminée de graisse pendant l'assemblage du demi-arbre Cette graisse est normalement suffisante pour lubrifier  The sealing structure is usually made of a flexible material, either rubber or plastic. At one of its ends, the protective bellows is fixed to the outside diameter of the body, or the seal housing. The other end is fixed. to the connecting shaft This arrangement creates a substantially conical chamber which is filled with a predetermined quantity of grease during the assembly of the half-shaft This grease is normally sufficient to lubricate

le joint pour toute la durée de vie du véhicule.  the seal for the entire life of the vehicle.

Les garnitures d'étanchéité des joints homocinétiques constituent un élément essentiel de l'ensemble de demi-arbre en raison de l'exigence d'une fourniture continue de lubrifiant Si, pour une raison quelconque, la garniture  The CV joints packings are an essential part of the half shaft assembly due to the requirement for a continuous supply of lubricant if, for any reason, the packings

d'étanchéité fait l'objet d'une défaillance, cette défaillance est pratiquement indé-  is subject to failure, this failure is practically inde-

tectable de la part du conducteur du véhicule La garniture d'étanchéité laissant le lubrifiant fuir de l'ensemble, il en résulte alors dans un bref délai une défaillance du  tectable on the part of the vehicle driver Since the seal allows the lubricant to leak from the assembly, this results in a short time in failure of the

joint homocinétique.constant velocity joint.

La flexibilité de la garniture d'étanchéité permet un déplacement angulaire de l'arbre par rapport au boîtier du joint Pendant que le joint est dans une position angulaire, le soufflet de protection est soumis à une compression d'un côté, tandis que le côté opposé est soumis à une traction Lorsque le joint travaille sous un certain angle, le soufflet de protection passe par un mouvement cyclique de compression et de traction La fréquence de cette action cyclique dépend de la vitesse de rotation du joint. Les premières garnitures d'étanchéité pour joints homocinétiques étaient en une matière du type caoutchouc ou néoprène Cette matière offre une flexibilité excellente et est fixée facilement sur le boîtier du joint et sur l'arbre en utilisant un collier métallique de serrage Bien que ces garnitures d'étanchéité en caoutchouc jouent leur rôle d'une manière acceptable, la nature tendre des matières du type  The flexibility of the seal allows angular displacement of the shaft relative to the seal housing While the seal is in an angular position, the protective bellows is subjected to compression on one side, while the side opposite is subjected to traction When the joint works at a certain angle, the protective bellows goes through a cyclic movement of compression and traction The frequency of this cyclic action depends on the rotation speed of the joint. The first seals for CV joints were made of a rubber or neoprene type material. This material offers excellent flexibility and is easily attached to the seal housing and to the shaft using a metal clamp. sealing play their role in an acceptable manner, the tender nature of materials of the type

caoutchouc les rend extrêmement sensibles à des entailles par pincement.  rubber makes them extremely susceptible to pinching nicks.

Une entaille du soufflet de protection en caoutchouc peut se produire pendant la manipulation du demi-arbre, pendant l'assemblage du véhicule ou par contact entre le soufflet en caoutchouc et d'autres éléments du véhicule pendant l'assemblage du véhicule Une fois convenablement assemblés, les soufflets de protection en caoutchouc peuvent être endommagés par des obstacles présentés par la route, des pinces-leviers utilisées par des mécaniciens, des crochets de remorquage ou d'autres objets qui pincent le soufflet de protection entre l'objet et  A cut in the rubber boot may occur during the handling of the half shaft, during vehicle assembly or by contact between the rubber boot and other vehicle components during vehicle assembly Once properly assembled , the protective rubber bellows can be damaged by obstacles presented by the road, lever clamps used by mechanics, tow hooks or other objects which pinch the protective bellows between the object and

l'un ou l'autre des éléments du demi-arbre.  any of the elements of the half-tree.

Des soufflets de protection en matière plastique, notamment de dénomi-  Protective plastic bellows, particularly of

nation commerciale "Dupont Hytrele", ont été mis au point pour réduire ou éliminer le risque de faire l'objet d'une entaille par pincement La matière plastique étant  "Dupont Hytrele" commercial nation, have been developed to reduce or eliminate the risk of being pinched.

plus dure qu'une matière du type caoutchouc peut résister à un défaut de manipu-  harder than a rubber-like material can withstand handling failure

lation ou autre atteinte d'une intensité raisonnable qui pourrait entailler par  lation or other interference of reasonable intensity which could cut into

pincement un soufflet de protection en caoutchouc.  pinching a protective rubber bellows.

Malheureusement, l'accroissement de dureté s'accompagne d'une difficulté  Unfortunately, increasing hardness comes with difficulty

de fixation des soufflets de protection en matière plastique sur les surfaces exté-  for fixing the plastic protective bellows to the outer surfaces

rieures et les arbres des ensembles de demi-arbre La matière plastique nécessite un collier métallique de serrage ayant une section transversale assez importante pour maintenir le soufflet de protection sur les éléments du demi-arbre, et assurer l'étanchéité de ce soufflet de protection pendant le fonctionnement Outre une section transversale accrue, le matériau du collier métallique est remplacé par un  laughs and the shafts of the half-shaft assemblies The plastic requires a metal clamping collar having a large enough cross-section to hold the protective bellows on the elements of the half-shaft, and to ensure the tightness of this protective bellows for operation In addition to an increased cross-section, the material of the metal collar is replaced by a

acier inoxydable relativement cher au lieu d'un acier galvanisé économique.  relatively expensive stainless steel instead of economical galvanized steel.

L'augmentation de section transversale en même temps que le remplacement par un matériau plus onéreux a augmenté notablement le coût du système de serrage  The increase in cross-section at the same time as the replacement with more expensive material has significantly increased the cost of the clamping system

du soufflet de protection.of the protective bellows.

C'est pourquoi il est souhaitable de disposer d'un procédé permettant de fixer un soufflet de protection en matière plastique, pour joint de transmission, notamment homocinétique, sur un ensemble de demi-arbre, qui soit d'un coût  This is why it is desirable to have a method for fixing a protective plastic bellows, for transmission joint, in particular constant velocity joint, on a set of half-shaft, which is cost

faible et qui soit fiable.weak and reliable.

La présente invention a pour objet un procédé de fixation d'un soufflet de protection en matière plastique sur un ensemble de demi-arbre Le soufflet de protection est mis en place, puis chauffé de façon que ce soufflet de protection se rétracte sur l'ensemble de demi-arbre et épouse la forme de ce dernier. L'invention a pour objet un procédé de fixation d'une garniture d'étanchéité sur un boîtier cylindrique, caractérisé en ce qu'il consiste à positionner une première extrémité de la garniture d'étanchéité par-dessus le boîtier cylindrique, à chauffer cette première extrémité de la garniture d'étanchéité au-delà du point de fusion de la matière de cette garniture d'étanchéité et à refroidir la première extrémité de la garniture d'étanchéité et laisser cette première extrémité de la  The subject of the present invention is a method of fixing a protective plastic bellows to a set of half-shafts. The protective bellows are put in place, then heated so that this protective bellows retracts over the whole. of half-tree and follows the shape of the latter. The subject of the invention is a method of fixing a seal on a cylindrical housing, characterized in that it consists in positioning a first end of the seal over the cylindrical housing, in heating this first end of the gasket beyond the melting point of the material of this gasket and to cool the first end of the gasket and leave this first end of the

garniture d'étanchéité se rétracter sur le boîtier.  packing retract on the housing.

L'invention a aussi pour objet un procédé de fixation d'une garniture d'étan-  The invention also relates to a method of fixing a sealing gasket

chéité sur un boîtier d'un joint de transmission, notamment homocinétique, et sur un arbre, caractérisé en ce qu'il consiste à positionner une première extrémité de la garniture d'étanchéité par- dessus le boîtier du joint, à positionner une seconde extrémité de la garniture d'étanchéité par-dessus l'arbre, à chauffer la première extrémité de la garniture d'étanchéité au-delà du point de fusion de la matière de la garniture d'étanchéité, à chauffer la seconde extrémité de la garniture d'étanchéité au-delà du point de fusion de la matière de la garniture d'étanchéité, à refroidir la première extrémité de la garniture d'étanchéité et laisser cette première extrémité de la garniture d'étanchéité se rétracter sur le boîtier de joint et à refroidir la seconde extrémité de la garniture d'étanchéité et laisser cette seconde extrémité  chity on a housing of a transmission joint, in particular constant velocity, and on a shaft, characterized in that it consists in positioning a first end of the seal over the seal housing, in positioning a second end of the packing over the shaft, heating the first end of the packing beyond the melting point of the packing material, heating the second end of the packing d sealing beyond the melting point of the packing material, to cool the first end of the packing and allow this first end of the packing to retract onto the seal housing and cool the second end of the packing and leave this second end

de la garniture d'étanchéité se rétracter sur l'arbre.  of the packing retract on the shaft.

D'autres caractéristiques et avantages de l'invention ressortiront de la  Other characteristics and advantages of the invention will emerge from the

description qui va suivre, à titre d'exemples non limitatifs et en regard des dessins  description which follows, by way of nonlimiting examples and with reference to the drawings

annexés sur lesquels: la figure i est une vue en élévation de côté, partiellement en coupe, d'une garniture d'étanchéité fixée sur un demiarbre, avant chauffage, conformément à la présente invention, la figure 2 est une vue en élévation de côté, partiellement en coupe, de la garniture d'étanchéité fixée sur le demi-arbre, après chauffage, conformément à la présente invention, et,  annexed in which: Figure i is a side elevational view, partially in section, of a gasket attached to a half shaft, before heating, in accordance with the present invention, Figure 2 is a side elevational view , partially in section, of the seal fitted on the half-shaft, after heating, in accordance with the present invention, and,

la figure 3 est une vue en élévation de côté, partiellement en coupe, ana-  Figure 3 is a side elevational view, partially in section, ana-

logue à la figure 2, mais illustrant l'adjonction d'un collier métallique.  shown in Figure 2, but illustrating the addition of a metal collar.

La description détaillée décrit la fixation d'une garniture d'étanchéité en  The detailed description describes the fixing of a gasket in

matière plastique sur une extrémité de joint à rotule à centre fixe d'un ensemble de demi-arbre Un spécialiste en la matière pourra utiliser les méthodes de fixation ici  plastic material on a fixed center ball joint end of a half shaft assembly A specialist in the matter can use the fixing methods here

décrites pour les appliquer aux autres types de joints de transmission.  described to apply them to other types of transmission joints.

Si on se reporte aux dessins et plus particulièrement aux figures 1 et 2, il y est représenté, désignée par le repère 10, une extrémité de joint à centre fixe d'un  If reference is made to the drawings and more particularly to FIGS. 1 and 2, there is shown there, designated by the reference 10, a joint end with a fixed center of

demi-arbre Le procédé de fixation commence par le positionnement d'une garni-  half-shaft The fixing process begins with the positioning of a packing

ture d'étanchéité en matière plastique 20 par-dessus et autour d'un arbre de liaison 22 La garniture d'étanchéité en matière plastique est fabriquée en une matière de dénomination "Dupont Hytrel " par des méthodes d'extrusion-soufflage bien connues dans la technique La petite extrémité de la garniture d'étanchéité 24 est positionnée dans une gorge 26 située sur la surface extérieure 28 de l'arbre de liaison 22 Une extrémité de la garniture d'étanchéité 20 est ainsi positionnée par  plastic seal 20 over and around a connecting shaft 22 The plastic seal is made of a material called "Dupont Hytrel" by extrusion blow molding methods well known in the art. the technique The small end of the gasket 24 is positioned in a groove 26 located on the outer surface 28 of the connecting shaft 22 One end of the gasket 20 is thus positioned by

rapport à l'extrémité de l'arbre de liaison 22.  relative to the end of the connecting shaft 22.

L'arbre de liaison 22 et la garniture d'étanchéité 20 sont alors assemblés pour constituer l'ensemble de joint 30 Normalement, l'arbre de liaison mutuelle 22 et le chemin intérieur de roulement du joint sont réunis par des cannelures 34, ainsi  The connecting shaft 22 and the seal 20 are then assembled to form the seal assembly 30 Normally, the mutual connection shaft 22 and the internal raceway of the seal are joined by grooves 34, thus

que la figure 1 le représente.as Figure 1 shows.

La grande extrémité 36 de la garniture d'étanchéité 20 est alors positionnée par-dessus le chemin extérieur de roulement 38 formé à l'intérieur de l'ensemble de joint 30 La garniture d'étanchéité 20 comporte une partie en saillie nervurée 40 qui s'emboîte dans une gorge 42 usinée dans la surface extérieure 44 du boîtier dans lequel est formé le chemin extérieur de roulement 38 La partie en saillie nervurée 40 fait l'objet d'un emboîtement dans la gorge 42 de façon à positionner d'une manière convenable la garniture d'étanchéité 20 par rapport à l'ensemble de  The large end 36 of the seal 20 is then positioned over the outer raceway 38 formed inside the seal assembly 30 The seal 20 has a ribbed projecting portion 40 which s 'fits into a groove 42 machined in the outer surface 44 of the housing in which the outer raceway 38 is formed The ribbed projecting part 40 is fitted into the groove 42 so as to position in a manner suitable the packing 20 with respect to the assembly of

joint à vitesse constante 30.constant speed seal 30.

La chambre 50 délimitée par la garniture d'étanchéité 20, le chemin exté-  The chamber 50 delimited by the seal 20, the external path

rieur de roulement 38 et l'arbre de liaison 22, est alors remplie d'un lubrifiant d'un  bearing roller 38 and the connecting shaft 22, is then filled with a lubricant of a

type approprié et en quantité voulue.  appropriate type and desired quantity.

Les extrémités 24 et 36 de la garniture d'étanchéité 20 sont alors chauffées à une température légèrement supérieure à leur température de fusion Ce chauffage de la garniture d'étanchéité peut être réalisé en apportant une source extérieure de chaleur autour des extrémités 24 et 36 de la garniture d'étanchéité 20 par des méthodes bien connues dans la technique Une autre méthode d'apport de la chaleur nécessaire consiste à procéder au chauffage par induction du chemin extérieur de roulement 38 et de l'arbre de liaison 22, également par des méthodes connues dans la technique Le chauffage par induction du chemin extérieur de roulement 38 et de l'arbre de liaison 22 peut facilement être contrôlé pour être appliqué à une zone localisée de chauffage, en n'affectant ainsi que les zones de  The ends 24 and 36 of the seal 20 are then heated to a temperature slightly higher than their melting temperature. This heating of the seal can be carried out by providing an external source of heat around the ends 24 and 36 of the packing 20 by methods well known in the art Another method of providing the necessary heat consists in carrying out induction heating of the outer raceway 38 and of the connecting shaft 22, also by methods known in the art Inductive heating of the external raceway 38 and of the connecting shaft 22 can easily be controlled to be applied to a localized heating zone, thus only affecting the zones of

la garniture d'étanchéité 20 destinées à la fixation.  the seal 20 intended for fixing.

Une fois que la température de fusion de la garniture d'étanchéité 20 a été-  Once the melting temperature of the seal 20 has been

obtenue, on retire la source de chaleur et on laisse l'ensemble refroidir Le refroi-  obtained, the heat source is removed and the assembly is allowed to cool.

dissement de l'ensemble 10 permet à la garniture d'étanchéité 20 d'épouser la  dissement of the assembly 10 allows the seal 20 to marry the

26866602686660

forme extérieure du chemin extérieur de roulement 38 et de l'arbre de liaison 22 et  outer shape of the outer raceway 38 and the connecting shaft 22 and

d'adhérer sur ces derniers.to join on these.

Normalement, une fois que la garniture d'étanchéité 20 est fixée sur l'ensemble de joint 30 et l'arbre de liaison 22 de la manière décrite, par le procédé ci-dessus, la fixation de cette garniture d'étanchéité constitue un ensemble fiable et complet Pour rendre encore plus sûre la fixation de la garniture d'étanchéité 20, des colliers métalliques de serrage 52 et 54 peuvent être assemblés par-dessus la  Normally, once the seal 20 is fixed to the seal assembly 30 and the connecting shaft 22 as described, by the above method, the fixing of this seal constitutes an assembly reliable and complete To make the attachment of the seal 20 even more secure, metal clamps 52 and 54 can be assembled over the

garniture d'étanchéité 20, ainsi que la figure 3 le représente Les colliers métal-  seal 20, as shown in Figure 3 Metal clamps

liques 52 et 54, ainsi que la technique permettant de les serrer, sont analogues aux  lines 52 and 54, as well as the technique for tightening them, are similar to

1 o colliers en acier galvanisé à faible coût qui sont utilisés pour maintenir une garni-  1 o low cost galvanized steel clamps which are used to maintain a trim

ture d'étanchéité en caoutchouc, et ils sont bien connus dans la technique.  rubber seal, and they are well known in the art.

Claims (12)

REVENDICATIONS 1 Procédé de fixation d'une garniture d'étanchéité ( 20) sur un boîtier cylin-  1 Method of fixing a seal (20) to a cylinder housing drique ( 30, 22), caractérisé en ce qu'il consiste à positionner une première extré-  drique (30, 22), characterized in that it consists in positioning a first end mité ( 36, 24) de la garniture d'étanchéité ( 20) par-dessus le boîtier cylindrique ( 30, 22), à chauffer cette première extrémité ( 36, 24) de la garniture d'étanchéité ( 20) au-delà du point de fusion de la matière de cette garniture d'étanchéité ( 20) et à refroidir la première extrémité ( 36, 24) de la garniture d'étanchéité ( 20) et laisser cette première extrémité ( 36, 24) de la garniture d'étanchéité ( 20) se rétracter sur le  mite (36, 24) of the seal (20) over the cylindrical housing (30, 22), to heat this first end (36, 24) of the seal (20) beyond the melting point of the material of this seal (20) and to cool the first end (36, 24) of the seal (20) and leave this first end (36, 24) of the seal seal (20) retract on the boîtier ( 30, 22).housing (30, 22). 2 Procédé de fixation suivant la revendication 1, caractérisé en ce que l'opé-  2 fastening method according to claim 1, characterized in that the ope- ration de chauffage comprend un chauffage du boîtier cylindrique ( 30, 22) au-delà  heating ration includes heating the cylindrical housing (30, 22) beyond du point de fusion de la matière de la garniture d'étanchéité ( 20).  the melting point of the packing material (20). 3 Procédé de fixation suivant la revendication 1, caractérisé en ce qu'il consiste en outre à positionner un collier ( 54, 52) autour de la première extrémité refroidie ( 36, 24) de la garniture d'étanchéité ( 20) et à serrer ce collier ( 54, 52) de  3 fastening method according to claim 1, characterized in that it further comprises positioning a collar (54, 52) around the first cooled end (36, 24) of the seal (20) and tightening this necklace (54, 52) of façon à favoriser le maintien de la fixation.  so as to favor the maintenance of the fixation. 4 Procédé de fixation suivant la revendication 1, caractérisé en ce que la matière de la garniture d'étanchéité ( 20) est une matière de dénomination  4 fastening method according to claim 1, characterized in that the material of the seal (20) is a material of designation commerciale "Dupont Hytrel ".commercial "Dupont Hytrel". 5 Procédé de fixation suivant la revendication 3, caractérisé en ce que le  5 fastening method according to claim 3, characterized in that the collier ( 54, 52) est en métal.necklace (54, 52) is made of metal. 6 Procédé de fixation d'une garniture d'étanchéité ( 20) sur un boîtier de joint  6 Method of fixing a seal (20) on a seal housing de transmission ( 30), notamment du type homocinétique et sur un arbre ( 22), carac-  transmission (30), in particular of the homokinetic type and on a shaft (22), charac- térisé en ce qu'il consiste à positionner une première extrémité ( 36) de la garniture d'étanchéité ( 20) par-dessus le boîtier du joint ( 30), à positionner une seconde extrémité ( 24) de la garniture d'étanchéité ( 20) par-dessus l'arbre ( 22), à chauffer la première extrémité ( 36) de la garniture d'étanchéité ( 20) au-delà du point de fusion de la matière de la garniture d'étanchéité ( 20), à chauffer la seconde extrémité ( 24) de la garniture d'étanchéité ( 20) au-delà du point de fusion de la matière de la garniture d'étanchéité ( 20), à refroidir la première extrémité ( 36) de la garniture  characterized in that it consists in positioning a first end (36) of the seal (20) over the seal housing (30), in positioning a second end (24) of the seal ( 20) over the shaft (22) to heat the first end (36) of the seal (20) beyond the melting point of the seal material (20), heating the second end (24) of the seal (20) beyond the melting point of the seal material (20), to cool the first end (36) of the seal d'étanchéité ( 20) et laisser cette première extrémité ( 36) de la garniture d'étan-  seal (20) and leave this first end (36) of the seal chéité ( 20) se rétracter sur le boîtier du joint ( 30) et à refroidir la seconde extrémité ( 24) de la garniture d'étanchéité ( 20) et laisser cette seconde extrémité ( 24) de la  chew (20) retract onto the seal housing (30) and cool the second end (24) of the seal (20) and leave this second end (24) of the garniture d'étanchéité ( 20) se rétracter sur l'arbre ( 22).  seal (20) retract on the shaft (22). 7 Procédé de fixation suivant la revendication 6, caractérisé en ce que l'opé-  7 fastening method according to claim 6, characterized in that the ope- ration de chauffage comprend un chauffage du boîtier du joint ( 30) audelà du point  heating ration includes heating of the seal housing (30) beyond the point de fusion de la matière de la garniture d'étanchéité ( 20).  for melting the material of the seal (20). 8 Procédé de fixation suivant la revendication 6, caractérisé en ce que l'opé-  8 fastening method according to claim 6, characterized in that the ope- ration de chauffage comprend un chauffage de l'arbre ( 22) au-delà du point de  heating ration includes heating the shaft (22) beyond the point of fusion de la matière de la garniture d'étanchéité ( 20).  melting of the packing material (20). 9 Procédé de fixation suivant la revendication 6, caractérisé en ce qu'il consiste en outre à positionner un premier collier ( 54) autour de la première extrémité refroidie ( 36) de la garniture d'étanchéité ( 20) et à serrer ce premier collier ( 54) de façon à favoriser le maintien de la fixation. Procédé de fixation suivant la revendication 6, caractérisé en ce qu'il  9 A fixing method according to claim 6, characterized in that it further consists in positioning a first collar (54) around the first cooled end (36) of the seal (20) and in tightening this first collar (54) so as to favor the maintenance of the fixation. Fastening method according to claim 6, characterized in that it consiste en outre à positionner un second collier ( 52) autour de la seconde extré-  further consists in positioning a second collar (52) around the second end mité refroidie ( 24) de la garniture d'étanchéité ( 20) et à serrer ce second collier ( 52)  cooled mite (24) of the seal (20) and to tighten this second collar (52) de façon à favoriser le maintien de la fixation.  so as to favor the maintenance of the fixation. 11 Procédé de fixation suivant la revendication 6, caractérisé en ce que la matière de la garniture d'étanchéité ( 20) est une matière de dénomination  11 A fixing method according to claim 6, characterized in that the material of the seal (20) is a material of designation commerciale "Dupont Hytrel ".commercial "Dupont Hytrel". 12 Procédé de fixation suivant la revendication 9, caractérisé en ce que le  12 fastening method according to claim 9, characterized in that the premier collier ( 54) est en métal.  first collar (54) is made of metal. 13 Procédé de fixation suivant la revendication 10, caractérisé en ce que le  13 fastening method according to claim 10, characterized in that the second collier ( 52) est en métal.second collar (52) is made of metal.
FR9300403A 1992-01-23 1993-01-18 METHOD FOR FIXING A SEAL ON A CYLINDRICAL HOUSING AND METHOD FOR FIXING A SEAL ON A TRANSMISSION JOINT HOUSING AND ON A SHAFT. Granted FR2686660A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82429492A 1992-01-23 1992-01-23

Publications (2)

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FR2686660A1 true FR2686660A1 (en) 1993-07-30
FR2686660B1 FR2686660B1 (en) 1995-02-17

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FR9300403A Granted FR2686660A1 (en) 1992-01-23 1993-01-18 METHOD FOR FIXING A SEAL ON A CYLINDRICAL HOUSING AND METHOD FOR FIXING A SEAL ON A TRANSMISSION JOINT HOUSING AND ON A SHAFT.

Country Status (6)

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JP (1) JPH0694046A (en)
KR (1) KR930016695A (en)
CA (1) CA2085965A1 (en)
DE (1) DE4301016A1 (en)
ES (1) ES2064254B1 (en)
FR (1) FR2686660A1 (en)

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EP0999386A1 (en) * 1998-10-22 2000-05-10 Trw Inc. Heat shrinkable boot seal and method of installation
US6234488B1 (en) 1997-03-05 2001-05-22 Trw Inc. Heat shrinkable boot seal and method of installation
US6951336B2 (en) 1997-03-05 2005-10-04 Trw Inc. Method of manufacturing a boot seal
EP2249053A1 (en) * 2008-02-05 2010-11-10 NTN Corporation Installation structure for boot for constant velocity universal joint and method of manufacturing constant velocity universal joint
FR3090790A1 (en) * 2018-12-21 2020-06-26 Psa Automobiles Sa Sealing bellows assembly comprising reduced diversity sealing means and sleeve forming part of such an assembly
CN111701561A (en) * 2020-07-31 2020-09-25 中国石油化工股份有限公司 Multi-stage variable speed rotating packed tower and extraction method

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JP2006275161A (en) * 2005-03-29 2006-10-12 Showa Corp Boots for propeller shaft, propeller shaft, installation method of boots for propeller shaft and seal method of propeller shaft
JP4716117B2 (en) 2006-03-27 2011-07-06 豊田合成株式会社 Constant velocity joint boots
JP2010255647A (en) * 2009-04-21 2010-11-11 Ntn Corp Cross groove-type constant velocity universal joint
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JP2018017369A (en) * 2016-07-29 2018-02-01 Ntn株式会社 Constant-velocity universal joint
CN106763802A (en) * 2017-01-05 2017-05-31 长沙捕光新能源科技有限公司 A kind of diaphragm no-leakage moves back and forth dynamic sealing

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Cited By (8)

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Publication number Priority date Publication date Assignee Title
US6234488B1 (en) 1997-03-05 2001-05-22 Trw Inc. Heat shrinkable boot seal and method of installation
US6322085B1 (en) 1997-03-05 2001-11-27 Trw Inc. Laminated tubular structure
US6951336B2 (en) 1997-03-05 2005-10-04 Trw Inc. Method of manufacturing a boot seal
EP0999386A1 (en) * 1998-10-22 2000-05-10 Trw Inc. Heat shrinkable boot seal and method of installation
EP2249053A1 (en) * 2008-02-05 2010-11-10 NTN Corporation Installation structure for boot for constant velocity universal joint and method of manufacturing constant velocity universal joint
EP2249053A4 (en) * 2008-02-05 2011-11-02 Ntn Toyo Bearing Co Ltd Installation structure for boot for constant velocity universal joint and method of manufacturing constant velocity universal joint
FR3090790A1 (en) * 2018-12-21 2020-06-26 Psa Automobiles Sa Sealing bellows assembly comprising reduced diversity sealing means and sleeve forming part of such an assembly
CN111701561A (en) * 2020-07-31 2020-09-25 中国石油化工股份有限公司 Multi-stage variable speed rotating packed tower and extraction method

Also Published As

Publication number Publication date
KR930016695A (en) 1993-08-26
ES2064254B1 (en) 1998-06-16
ES2064254A2 (en) 1995-01-16
ES2064254R (en) 1997-11-16
CA2085965A1 (en) 1993-07-24
DE4301016A1 (en) 1993-07-29
JPH0694046A (en) 1994-04-05
FR2686660B1 (en) 1995-02-17

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