FR2594503A1 - Self-lubricating ring made from composite material - Google Patents

Self-lubricating ring made from composite material Download PDF

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Publication number
FR2594503A1
FR2594503A1 FR8602084A FR8602084A FR2594503A1 FR 2594503 A1 FR2594503 A1 FR 2594503A1 FR 8602084 A FR8602084 A FR 8602084A FR 8602084 A FR8602084 A FR 8602084A FR 2594503 A1 FR2594503 A1 FR 2594503A1
Authority
FR
France
Prior art keywords
friction
ring made
oil
grease
composite
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Withdrawn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
FR8602084A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8602084A priority Critical patent/FR2594503A1/en
Publication of FR2594503A1 publication Critical patent/FR2594503A1/en
Withdrawn legal-status Critical Current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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/1065—Grooves on a bearing surface for distributing or collecting the liquid
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • F16C33/102—Construction relative to lubrication with grease as lubricant
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/28—Brasses; Bushes; Linings with embedded reinforcements shaped as frames or meshed materials

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sealing Devices (AREA)
  • Lubricants (AREA)

Abstract

Friction ring made from a composite material characterised by the arrangement of the fibres and the existence of very fine grooves filled with oil or grease, which grooves are on the internal surface of the ring 1. These rings have the necessary strength for withstanding the forces to which they are subjected as well as having a good coefficient of friction but in addition they are lightweight, of small bulk and have a low cost price.

Description

Lors de la rotation d'un arbre, on utilise soit des roulements å billes ou à rouleaux ou encore à aiguilles, soit des bagues lubrifiées faites d'un métal de frottement, tel que le bronze ou encore des bagues en métal fritté, lubrifiées ou auto-lubrifiées. When rotating a shaft, either ball or roller or needle bearings are used, or lubricated rings made of a friction metal, such as bronze, or sintered metal rings, lubricated or self-lubricated.

Roulements ou bagues doivent avoir deux caractéristiques principales: Résister aux efforts auxquels ces
organes sont soumis,
Avoir un coefficient de frottement
aussi bas que possible à tous les
régimes; mais d'autres éléments peuvent présenter de l'intérét: le volume de ces organes et le poids de ceux-ci par exemple.Bearings or rings must have two main characteristics: Resist the efforts to which these
organs are subject,
Have a coefficient of friction
as low as possible at all
diets; but other elements can be of interest: the volume of these organs and the weight of these for example.

La présente invention apporte une solution qui, sans nuire aux impératifs indiqués permet une réduction importante du volume et du poids, ainsi qu'une diminution du court de fabrication. The present invention provides a solution which, without detracting from the requirements indicated, allows a significant reduction in volume and weight, as well as a reduction in manufacturing time.

Elle est caractérisée - par l'emploi d'un composite approprié, c'est a dire de fibres convenablement tissées et orientées, noyées dans une substance liquide, telle une colle, se solidifiant par un procédé quelconque (mélange avec un autre liquide, action de l'air, de la chaleur, etc...); l'orientation des fibres par rapport a l'axe de rotation étant telle que soit maxima la résistance aux différents efforts, et en particulier aux efforts perpendiculaires à l'axe de rotation; - par le moulage de ce composite autour d'un arbre de diamètre égal < a la tolérance près) à celui de l'arbre que l'on désire utiliser; - par la création d'un réseau de rigoles de quelques centièmes de millimètre d'épaisseur sur la surface interne moulée; ce réseau est obtenu en insérant dans la bague en composite une bague constituée d'un tamis circulaire d'un diamètre extérieur égal au diamètre intérieur de la bague, et en chauffant brutalement ce tamis (par exemple en utilisant pendant un court instant un courant d'une forte intensité) pour brûler sur quelques centièmes de millimètre la matière solidifiée et obtenir ainsi le réseau désiré de rigoles. It is characterized - by the use of a suitable composite, that is to say suitably woven and oriented fibers, embedded in a liquid substance, such as an adhesive, solidifying by any process (mixing with another liquid, action air, heat, etc.); the orientation of the fibers with respect to the axis of rotation being such that the resistance to different forces is maxima, and in particular to forces perpendicular to the axis of rotation; - By molding this composite around a tree with a diameter equal (except for the tolerance) to that of the tree that one wishes to use; - by creating a network of channels a few hundredths of a millimeter thick on the molded internal surface; this network is obtained by inserting into the composite ring a ring consisting of a circular sieve with an outside diameter equal to the inside diameter of the ring, and by brutally heating this sieve (for example by using for a short time a current d 'high intensity) to burn solidified matter over a few hundredths of a millimeter and thus obtain the desired network of channels.

En raison de la faible profondeur de ces rigoles, l'huile ou la graisse restera dans celles-ci, assurant ainsi un très bon coefficient de frottement. Due to the shallow depth of these channels, the oil or grease will remain in them, thus ensuring a very good coefficient of friction.

Diverses variantes peuvent encore améliorer cette solution de principe, par exemple - utilisation d'un composite possédant déjà un bon coefficient de frottement, - utilisation d'une huile ou d'une graisse dans laquelle a été incorporé un adjuvant de frottement tel que le bisulfure de molybdène, - utilisation d'une réserve d'huile ou de graisse "empri-sonnée" entre deux joints. Various alternatives can further improve this solution in principle, for example - use of a composite already having a good coefficient of friction, - use of an oil or a grease in which a friction adjuvant such as bisulfide has been incorporated of molybdenum, - use of a reserve of oil or grease "trapped" between two joints.

Le schéma 1 montre la bague (1) moulée en composite préte à recevoir le tamis (2) qui permettra d'imprimer les rigoles par brûlage. Diagram 1 shows the ring (1) molded in composite ready to receive the sieve (2) which will allow to print the channels by burning.

Le schéma 2 est la coupe d'un dispositif permettant d'emprisonner une certaine quantité d'huile; a la bague < 1) en composite sont vissés ou collés deux colliers (3 > et (,) enserrant un joint en élastomère destiné à faire l'étan- chéité le long de l'arbre et laissant éventuellement un certain intervalle avec la bague en composite pour faire réserve d'huile; l'élastomère est donc coincé entre la bague (1) et le collier (3) ou dans un logement situé dans le collier (4). Diagram 2 is the section of a device making it possible to trap a certain quantity of oil; to the ring <1) in composite are screwed or glued two collars (3> and (,) enclosing an elastomer seal intended to seal along the shaft and possibly leaving a certain gap with the ring in composite to reserve oil; the elastomer is therefore wedged between the ring (1) and the collar (3) or in a housing located in the collar (4).

I1 est évident que les bagues ainsi faites en composite sont d'un prix de revient bas tout en ayant une résistance aussi grande que l'on veut pour un encombrement et un poids minimum.  It is obvious that the rings thus made of composite are of a low cost price while having as great a resistance as is desired for a space requirement and a minimum weight.

Claims (5)

REVENDICATIONS 1 - Bague de frottement réalisée en composite caractérisée par la disposition géométrique des fibres assurant le maximum de résistance aux efforts auxquels elles sont soumises et par l'existence de très fines rigoles remplies d'huile ou de graisse sur la surface où se produit le frottement.1 - Friction ring made of composite characterized by the geometric arrangement of the fibers ensuring maximum resistance to the forces to which they are subjected and by the existence of very fine channels filled with oil or grease on the surface where friction occurs . 2 - Bague de frottement réalisée en composite suivant la revendication 1 caractérisée par le fait que la matière solidifiée possède, entre autr-es qualités, celle d'avoir par elle même un bon coefficient de frottement.2 - Friction ring made of composite according to claim 1 characterized in that the solidified material has, between other qualities, that of having by itself a good coefficient of friction. 3 - Bague de frottement réalisée en composite suivant la revendication 1 caractérisée par le fait que l'huile ou la graisse qui se trouve dans les rigoles contient un adjuvant de frottement tel que le bisulfure de molybdène. 3 - friction ring made of composite according to claim 1 characterized in that the oil or the fat which is in the channels contains a friction adjuvant such as molybdenum disulphide. 4 - Bague de frottement réalisée en composite suivant la revendication 1 caractérisée par le fait qu'elle possede aux deux extrémités un système de joints destinés â maintenir a l'intérieur de la bague l'huile ou la graisse.4 - Friction ring made of composite according to claim 1 characterized in that it has at both ends a system of seals intended to keep inside the ring oil or grease. 5 - Bague de frottement réalisée en composite suivant les revendications 1 et 4 caractérisée par le fait qu'a, au moins une extrémité, le systeme de joints est tel qu'il emprisonne une réserve d'huile ou de graisse. 5 - Friction ring made of composite according to claims 1 and 4 characterized in that at at least one end, the seal system is such that it traps a reserve of oil or grease.
FR8602084A 1986-02-17 1986-02-17 Self-lubricating ring made from composite material Withdrawn FR2594503A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8602084A FR2594503A1 (en) 1986-02-17 1986-02-17 Self-lubricating ring made from composite material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8602084A FR2594503A1 (en) 1986-02-17 1986-02-17 Self-lubricating ring made from composite material

Publications (1)

Publication Number Publication Date
FR2594503A1 true FR2594503A1 (en) 1987-08-21

Family

ID=9332172

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8602084A Withdrawn FR2594503A1 (en) 1986-02-17 1986-02-17 Self-lubricating ring made from composite material

Country Status (1)

Country Link
FR (1) FR2594503A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236150B (en) * 1989-09-22 1993-09-08 Heiwa Sangyo Co Ltd Sintered oil-retaining bearing
FR2712943A1 (en) * 1993-11-26 1995-06-02 Bar Gerd Device for sealing a shaft sliding bearing.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236150B (en) * 1989-09-22 1993-09-08 Heiwa Sangyo Co Ltd Sintered oil-retaining bearing
FR2712943A1 (en) * 1993-11-26 1995-06-02 Bar Gerd Device for sealing a shaft sliding bearing.

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