FR2867533A1 - Concentric rotating shafts e.g. driving and driven shafts, coupling device, has intermediate unit with cams cooperating with grooves of another intermediate unit, where cams and grooves allow sliding of shafts with respect to each other - Google Patents
Concentric rotating shafts e.g. driving and driven shafts, coupling device, has intermediate unit with cams cooperating with grooves of another intermediate unit, where cams and grooves allow sliding of shafts with respect to each other Download PDFInfo
- Publication number
- FR2867533A1 FR2867533A1 FR0450519A FR0450519A FR2867533A1 FR 2867533 A1 FR2867533 A1 FR 2867533A1 FR 0450519 A FR0450519 A FR 0450519A FR 0450519 A FR0450519 A FR 0450519A FR 2867533 A1 FR2867533 A1 FR 2867533A1
- Authority
- FR
- France
- Prior art keywords
- shafts
- coupling device
- grooves
- cams
- intermediate unit
- 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.)
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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
- 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
- F16D3/202—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 one coupling part having radially projecting pins, e.g. tripod joints
- F16D3/205—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 one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
- F16D3/2057—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 one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having four or more pins, e.g. with compensation for relative pin movement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
Dispositif d'accouplement de deux arbres tournants concentriques et arbresCoupling device for two concentric rotating shafts and shafts
tournants accouplés par un tel dispositif twisted coupled by such a device
L'invention se rapporte à un dispositif d'accouplement de 5 deux arbres tournants concentriques ainsi qu'à des arbres tournants accouplés par un tel dispositif. The invention relates to a device for coupling two concentric rotating shafts and to rotating shafts coupled by such a device.
L'invention concerne plus particulièrement un dispositif d'accouplement de deux arbres tournants concentriques, respectivement intérieur et extérieur. The invention relates more particularly to a device for coupling two concentric rotating shafts, respectively inside and outside.
io Ce type de dispositif emploie en général un grand nombre de pièces et a un fonctionnement qui est très sensible aux dispersions géométriques de ces pièces. En particulier, lorsque les arbres accouplés sont des arbres cannelés, les défauts géométriques d'orientation des cannelures peuvent entraîner des dysfonctionnements dans la transmission du mouvement (bruits, vibrations, corrosion excessive etc...). De plus, des défauts d'alignements (ou d'excentricité) entre les axes de rotation des arbres accouplés peuvent entraîner de mauvais fonctionnements dans la transmission du mouvement de rotation. This type of device generally employs a large number of parts and has an operation which is very sensitive to the geometric dispersions of these parts. In particular, when the coupled shafts are splined shafts, the geometrical orientation defects of the splines can cause malfunctions in the transmission of the movement (noise, vibrations, excessive corrosion, etc.). In addition, misalignments (or eccentricity) between the axes of rotation of the coupled shafts can cause malfunctions in the transmission of the rotational movement.
Un but de la présente invention est de pallier tout ou partie des inconvénients de l'art antérieur relevés ci-dessus. An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
A cette fin, le dispositif d'accouplement selon l'invention, par ailleurs conforme à la définition générique qu'en donne le préambule ci-dessus, est essentiellement caractérisé en ce qu'il comprend un premier élément intermédiaire destiné à être disposé concentriquement au premier arbre, des premiers moyens de liaison en rotation formés sur la surface intérieure du premier élément et destinés à coopérer avec des moyens conjugués formés sur la surface extérieure du premier arbre, un second élément intermédiaire destiné à être disposé concentriquement au premier élément intermédiaire, des seconds moyens de liaison en rotation formés sur la surface extérieure du premier élément intermédiaire et destinés à coopérer avec des moyens conjugués formés sur la surface intérieure du second élément, des troisièmes moyens de liaison en rotation formés sur la surface extérieure du second élément intermédiaire et destinés à coopérer avec des moyens conjugués formés sur la surface intérieure du second arbre, et en ce que les moyens de liaison en rotation comportent une liaison rotule de façon à autoriser un défaut de co-axialité ou d'excentricité entre les axes de rotation des deux arbres accouplés. To this end, the coupling device according to the invention, furthermore in conformity with the generic definition given in the preamble above, is essentially characterized in that it comprises a first intermediate element intended to be arranged concentrically at the first shaft, first rotational coupling means formed on the inner surface of the first member and intended to cooperate with conjugate means formed on the outer surface of the first shaft, a second intermediate element to be arranged concentrically to the first intermediate element, second rotational linking means formed on the outer surface of the first intermediate member and adapted to cooperate with conjugate means formed on the inner surface of the second member, third rotational connecting means formed on the outer surface of the second intermediate member and for to cooperate with ens conjugués formed on the inner surface of the second shaft, and in that the rotational connection means comprise a ball joint connection so as to allow a defect in coaxiality or eccentricity between the axes of rotation of the two coupled shafts.
io Par ailleurs, l'invention peut comporter l'une ou plusieurs des caractéristiques suivantes: - la liaison rotule est conformée pour autoriser une rotation relative entre les arbres accouplés selon un axe sensiblement perpendiculaire aux axes de rotation des arbres, - la liaison rotule est formée par deux pivots distincts et perpendiculaires, - les seconds moyens de liaison en rotation constituent également la liaison rotule, - la liaison rotule est formée par un système de doigts formés sur le premier élément intermédiaire, ou respectivement sur le second élément intermédiaire, et coopérant avec des rainures correspondantes formées sur le second élément, respectivement sur le premier élément (3) intermédiaire, - les premiers moyens de liaison comportent des cannelures, - les seconds moyens de liaison comportent des cannelures, - le premier élément intermédiaire a la forme générale 30 d'une bague tubulaire, - le second élément intermédiaire a la forme générale d'une bague tubulaire. Furthermore, the invention may comprise one or more of the following features: the ball joint is shaped to allow relative rotation between the shafts coupled along an axis substantially perpendicular to the axes of rotation of the shafts, the ball joint is formed by two distinct and perpendicular pivots, - the second rotational connection means also constitute the ball joint, - the ball joint is formed by a system of fingers formed on the first intermediate element, or respectively on the second intermediate element, and cooperating with corresponding grooves formed on the second element, respectively on the first intermediate element (3), - the first connecting means comprise splines, - the second connecting means comprise splines, - the first intermediate element has the general shape of a tubular ring, the second intermediate element has the shape gen erale of a tubular ring.
L'invention concerne également des arbres tournants concentriques respectivement intérieur et extérieur, accouplés au moyen d'un dispositif d'accouplement, conforme à l'une quelconque des caractéristiques précédentes. The invention also relates to concentric rotating shafts respectively inner and outer, coupled by means of a coupling device, according to any one of the preceding characteristics.
D'autres particularités et avantages apparaîtront à la lecture de la description ci-après, faite en référence aux figures dans lesquelles: - la figure 1 représente une vue en perspective et partielle de deux arbres concentriques tournant destinés à être io accouplés, - les figures 2 et 3 représentent respectivement des vues en perspectives de deux éléments intermédiaires de liaison du dispositif d'accouplement selon l'invention, - la figure 4 représente une vue en coupe transversale 15 des deux arbres de la figure 1, accouplés au moyen d'un dispositif d'accouplement selon l'invention, - la figure 5 représente une vue en perspective et en coupe longitudinale partielle des arbres accouplés de la figure 4, dans laquelle les axes longitudinaux des deux arbres ne sont pas colinéaires, - la figure 5 représente une vue en coupe longitudinale de l'agencement de la figure 5. Other particularities and advantages will appear on reading the description below, with reference to the figures in which: FIG. 1 represents a perspective and partial view of two concentric rotating shafts intended to be coupled, FIGS. 2 and 3 respectively represent perspective views of two intermediate connecting elements of the coupling device according to the invention; FIG. 4 represents a cross-sectional view of the two shafts of FIG. 1, coupled by means of a coupling device according to the invention, - Figure 5 shows a perspective view in partial longitudinal section of the coupled shafts of Figure 4, in which the longitudinal axes of the two shafts are not collinear, - Figure 5 shows a longitudinal sectional view of the arrangement of FIG.
Le dispositif d'accouplement selon l'invention va à présent être décrit dans un exemple d'application à deux arbres rotatifs concentriques cannelés (cf. figure 1). The coupling device according to the invention will now be described in an example of application to two concentric rotating shafts (FIG. 1).
Un premier arbre dit intérieur 1 comporte des cannelures 101 longitudinales formées sur sa surface extérieure cylindrique. Les cannelures 101 sont dites longitudinales car parallèles à l'axe de symétrie longitudinal de l'arbre 1 (qui coïncide de préférence avec l'axe de rotation de l'arbre 1). A first inner shaft 1 has longitudinal grooves 101 formed on its cylindrical outer surface. The grooves 101 are said to be longitudinal because parallel to the longitudinal axis of symmetry of the shaft 1 (which coincides preferably with the axis of rotation of the shaft 1).
Le deuxième arbre dit extérieur 2 est quant à lui de forme tubulaire et comprend également des cannelures 301 longitudinales formées sur sa surface cylindrique intérieure. The second outer shaft 2 is itself of tubular shape and also comprises longitudinal grooves 301 formed on its inner cylindrical surface.
Le diamètre intérieur du second arbre 2 est supérieur au 5 diamètre extérieur du premier arbre 1, de façon à accueillir le dispositif d'accouplement entre les deux arbres 1, 2. The inner diameter of the second shaft 2 is greater than the outer diameter of the first shaft 1, so as to receive the coupling device between the two shafts 1, 2.
Le dispositif d'accouplement comprend un premier élément 3 intermédiaire ayant la forme générale d'une bague cylindrique et destiné à être disposé concentriquement autour io premier arbre 1 (figure 2). La surface intérieure du premier élément 3 intermédiaire a un diamètre et des cannelures 103 adaptés pour s'engrener avec la surface extérieure du premier arbre 1. Le premier élément 3 intermédiaire présente une surface extérieure cylindrique lisse sur laquelle fait saillie quatre doigts 203 orientés radialement vers l'extérieur du corps de l'élément 3. Les quatre doigts 203 sont situés dans un même plan perpendiculaire à l'axe longitudinal de l'élément 3. Les doigts 203 sont par ailleurs répartis angulairement de façon symétrique par rapport à l'axe longitudinal de l'élément 3 (90 degrés entre deux doigts 203 adjacents). The coupling device comprises a first intermediate element 3 having the general shape of a cylindrical ring and intended to be arranged concentrically around the first shaft 1 (FIG. 2). The inner surface of the first intermediate member 3 has a diameter and grooves 103 adapted to mesh with the outer surface of the first shaft 1. The first intermediate member 3 has a smooth cylindrical outer surface on which four radially oriented fingers 204 project. outside the body of the element 3. The four fingers 203 are located in the same plane perpendicular to the longitudinal axis of the element 3. The fingers 203 are also angularly distributed symmetrically with respect to the axis longitudinal of the element 3 (90 degrees between two adjacent fingers 203).
Le dispositif accouplement comprend un second élément 4 intermédiaire ayant la forme générale d'une bague cylindrique et destiné à être disposé concentriquement autour du premier élément 3 intermédiaire. The coupling device comprises a second intermediate element 4 having the general shape of a cylindrical ring and intended to be arranged concentrically around the first intermediate element 3.
La surface intérieure du second élément 4 intermédiaire a un diamètre correspondant au diamètre extérieur du premier élément 3, et quatre rainures 204 longitudinales disposées relativement de façon à accueillir les doigts 203 du premier élément 3. The inner surface of the second intermediate element 4 has a diameter corresponding to the outer diameter of the first element 3, and four longitudinal grooves 204 arranged relatively so as to receive the fingers 203 of the first element 3.
La surface extérieure du second élément 4 intermédiaire a un diamètre et des cannelures 304 longitudinales adaptés pour s'engrener avec la surface intérieure cannelée 301 du second arbre 2. The outer surface of the second intermediate member 4 has a diameter and longitudinal grooves 304 adapted to mesh with the grooved inner surface 301 of the second shaft 2.
La figure 4 représente le dispositif d'accouplement monté entre les deux arbres concentriques (premier 3 et second 4 éléments intermédiaires enfilés entre les arbres 1, 2). Dès lors, lorsque l'un des deux arbres 1, 2 dit arbre menant a un couple de rotation, les moyens d'accouplement 3, 4 transmettent le couple à l'autre arbre 2, 1 dit mené. Le dispositif d'accouplement selon l'invention est homocinétique. En effet, le rapport de la vitesse de rotation entre l'arbre menant et l'arbre mené est égal à un. Figure 4 shows the coupling device mounted between the two concentric shafts (first 3 and second 4 intermediate elements threaded between the shafts 1, 2). Therefore, when one of the two shafts 1, 2 said shaft leading to a torque, the coupling means 3, 4 transmit the torque to the other shaft 2, 1 said led. The coupling device according to the invention is homokinetic. Indeed, the ratio of the speed of rotation between the driving shaft and the driven shaft is equal to one.
io La transmission du couple entre le premier élément 3 intermédiaire et le second élément 4 intermédiaire est assurée par les doigts 203 du premier élément 3 qui coopèrent avec les rainures 204 du second élément 4. Ces mêmes moyens de liaison en rotation forme également une liaison rotule entre les deux éléments 3, 4 (et donc une liaison rotule entre les deux arbres 1, 2). The transmission of the torque between the first intermediate element 3 and the second intermediate element 4 is provided by the fingers 203 of the first element 3 which cooperate with the grooves 204 of the second element 4. These same rotational connection means also form a ball joint between the two elements 3, 4 (and thus a ball joint connection between the two shafts 1, 2).
En effet, les deux paires de doigts 203 alignés forment respectivement deux pivots distincts et perpendiculaires. Les rainures longitudinales autorisent un jeu et donc un déplacement des doigts permettant l'inclinaison d'un arbre 1 par rapport à l'autre 2. Les figures 5 et 6 illustrent les deux arbres accouplés avec un décalage angulaire A de leurs axes de rotation respectifs. Indeed, the two pairs of aligned fingers 203 respectively form two distinct and perpendicular pivots. The longitudinal grooves allow play and thus a movement of the fingers allowing the inclination of a shaft 1 relative to the other 2. Figures 5 and 6 illustrate the two shafts coupled with an angular offset A of their respective axes of rotation .
De plus, les moyens de liaison en rotation 203, 204 entre 25 les deux éléments 3, 4 peuvent permettre un coulissement longitudinal relatif d'un arbre par rapport à l'autre. In addition, the rotational linking means 203, 204 between the two elements 3, 4 may allow relative longitudinal sliding of one shaft relative to the other.
Ainsi, tout en étant de structure simple et peu coûteuse, l'invention permet d'accoupler deux arbres en respectant leurs axes de rotation respectifs. L'invention est particulièrement adaptée à la transmission de couple entre deux arbres cannelés non co-axiaux. Thus, while being simple and inexpensive structure, the invention allows to couple two shafts respecting their respective axes of rotation. The invention is particularly suitable for transmitting torque between two non-coaxial grooved shafts.
L'invention peut s'appliquer, par exemple, à l'accouplement d'une machine électrique (Moteur Hybride) avec l'arbre primaire d'une boîte de vitesses. The invention can be applied, for example, to the coupling of an electric machine (Hybrid Engine) with the primary shaft of a gearbox.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0450519A FR2867533B1 (en) | 2004-03-15 | 2004-03-15 | DEVICE FOR COUPLING TWO CONCENTRIC ROTATING TREES AND ROTATING SHAFTS FITTED BY SUCH A DEVICE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0450519A FR2867533B1 (en) | 2004-03-15 | 2004-03-15 | DEVICE FOR COUPLING TWO CONCENTRIC ROTATING TREES AND ROTATING SHAFTS FITTED BY SUCH A DEVICE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2867533A1 true FR2867533A1 (en) | 2005-09-16 |
FR2867533B1 FR2867533B1 (en) | 2006-06-02 |
Family
ID=34896780
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0450519A Expired - Fee Related FR2867533B1 (en) | 2004-03-15 | 2004-03-15 | DEVICE FOR COUPLING TWO CONCENTRIC ROTATING TREES AND ROTATING SHAFTS FITTED BY SUCH A DEVICE |
Country Status (1)
Country | Link |
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FR (1) | FR2867533B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2292963A1 (en) * | 2009-09-03 | 2011-03-09 | General Electric Company | Loose anti-rotation lock sleeve for pipe/flange assembly |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3453842A (en) * | 1967-09-07 | 1969-07-08 | Lloyd E Rethwisch | Universal couplings |
US4702723A (en) * | 1985-04-25 | 1987-10-27 | Glaenzer Spicer | Homokinetic joint having pivotable jaws with complementary sets of teeth for conjugate pivotal movement thereof |
US5197786A (en) * | 1991-10-04 | 1993-03-30 | National Racing Products, Inc. | Rigid drive axle with cambered wheel hubs |
-
2004
- 2004-03-15 FR FR0450519A patent/FR2867533B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3453842A (en) * | 1967-09-07 | 1969-07-08 | Lloyd E Rethwisch | Universal couplings |
US4702723A (en) * | 1985-04-25 | 1987-10-27 | Glaenzer Spicer | Homokinetic joint having pivotable jaws with complementary sets of teeth for conjugate pivotal movement thereof |
US5197786A (en) * | 1991-10-04 | 1993-03-30 | National Racing Products, Inc. | Rigid drive axle with cambered wheel hubs |
US5197786B1 (en) * | 1991-10-04 | 1995-06-20 | Nat Racing Products Inc | Rigid driver axle with cambered wheel hubs |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2292963A1 (en) * | 2009-09-03 | 2011-03-09 | General Electric Company | Loose anti-rotation lock sleeve for pipe/flange assembly |
US8123259B2 (en) | 2009-09-03 | 2012-02-28 | General Electric Company | Loose anti-rotation lock sleeve for pipe/flange assembly |
RU2531085C2 (en) * | 2009-09-03 | 2014-10-20 | Дженерал Электрик Компани | Locking sleeve and flange and tube locking assembly |
Also Published As
Publication number | Publication date |
---|---|
FR2867533B1 (en) | 2006-06-02 |
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Legal Events
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ST | Notification of lapse |
Effective date: 20141128 |