FR3024192A1 - GUIDE PULLEY FOR MOTOR VEHICLE - Google Patents
GUIDE PULLEY FOR MOTOR VEHICLE Download PDFInfo
- Publication number
- FR3024192A1 FR3024192A1 FR1457093A FR1457093A FR3024192A1 FR 3024192 A1 FR3024192 A1 FR 3024192A1 FR 1457093 A FR1457093 A FR 1457093A FR 1457093 A FR1457093 A FR 1457093A FR 3024192 A1 FR3024192 A1 FR 3024192A1
- Authority
- FR
- France
- Prior art keywords
- pulley
- rotation
- axis
- installation
- guide
- 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
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Classifications
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- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
- F16H55/171—Toothed belt pulleys
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- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/18—Means for guiding or supporting belts, ropes, or chains
- F16H7/20—Mountings for rollers or pulleys
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- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H2055/363—Pulleys with special means or properties for lateral tracking of the flexible members running on the pulley, e.g. with crowning to keep a belt on track
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- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H2055/366—Pulleys with means providing resilience or vibration damping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
L'invention concerne une poulie de guidage mobile en rotation autour d'un axe (A) et comprenant : - une portion externe sous la forme d'un corps (1) de poulie présentant un profil sensiblement tubulaire et comprenant une surface extérieure munie d'une pluralité de dents (10) régulièrement ménagées ; - Un moyen de liaison rotative fixé au contact dudit corps de poulie et destiné à permettre la rotation dudit corps de poulie autour de l'axe de rotation ; - un moyen de blocage axial de la poulie par rapport à l'axe de rotation (Δ). Selon l'invention, le moyen de blocage présente des propriétés d'amortissement pour isoler l'axe de rotation des vibrations transmises depuis le corps de poulie.The invention relates to a guide pulley movable in rotation around an axis (A) and comprising: an outer portion in the form of a pulley body (1) having a substantially tubular profile and comprising an outer surface provided with a plurality of teeth (10) regularly arranged; - A rotary connection means fixed in contact with said pulley body and for enabling rotation of said pulley body about the axis of rotation; a means for axially locking the pulley with respect to the axis of rotation (Δ). According to the invention, the locking means has damping properties for isolating the axis of rotation of the vibrations transmitted from the pulley body.
Description
1 Poulie de guidage pour vehicule automobile La présente invention concerne le domaine des transports. Plus particulièrement, l'invention concerne un 5 système de guidage de courroie. La minimalisation des coûts ainsi que de l'encombrement est une problématique récurrente dans le domaine de l'automobile. Dans ce but, l'aménagement du bloc moteur, et 10 notamment de la distribution, est un des éléments importants à prendre en compte de sorte à économiser en terme de place, tout en ne nuisant pas aux capacités de fonctionnement de tels organes ou systèmes. Pour ce faire, il est connue d'implanter un tel 15 système à proximité du support moteur. Toutefois, et également de manière connue, le support moteur ne doit pas être solidaire du système de distribution de sorte éviter les remontées de vibration et de bruit dus au fonctionnement du moteur à combustion et transmis par la 20 courroie de distribution, de sorte à ne pas perturber l'habitacle. En d'autres termes, il est nécessaire de ne pas transmettre de vibrations dues à l'engrainement de denture de la courroie de distribution crantée sur la poulie 25 folle. Un inconvénient, ou plutôt risque, d'un tel système, serait donc de remonter des vibrations et donc du bruit dans le véhicule par l'intermédiaire des tampons moteurs et du contact solidien entre les éléments. L'invention a notamment pour objectif de résoudre 30 au moins en partie les inconvénients de l'art antérieur. Notamment, un objectif d'au moins un mode de réalisation de l'invention est de fournir une installation 3024192 2 permettant d'optimiser l'encombrement du système de distribution tout en ne réduisant pas l'efficacité d'une telle transmission de mouvement. Un autre objectif d'au moins un mode de réalisation 5 de l'invention est de fournir de tels éléments qui permettent de ne pas transmettre de vibrations et de bruits dus au fonctionnement du moteur par exemple. Encore un autre objectif d'au moins un mode de réalisation de l'invention est de fournir de tels éléments 10 qui soient simples d'utilisation et peu couteux à mettre en oeuvre. Ces objectifs, ainsi que d'autres qui apparaîtront par la suite, sont atteints à l'aide d'une poulie de guidage mobile en rotation autour d'un axe et comprenant : 15 une portion externe sous la forme d'un corps de poulie présentant un profil sensiblement tubulaire et comprenant une surface extérieure munie d'une pluralité de dents régulièrement ménagées ; un moyen de liaison rotative fixé au contact 20 dudit corps de poulie et destiné à permettre la rotation dudit corps de poulie autour de l'axe de rotation ; un moyen de blocage axial de la poulie par rapport à l'axe de rotation. Selon l'invention, le moyen de blocage présente des 25 propriétés d'amortissement pour isoler l'axe de rotation des vibrations transmises depuis le corps de poulie. Ainsi, l'invention propose une approche nouvelle et inventive permettant de résoudre au moins certains des inconvénients de l'art antérieur. Notamment, l'invention 30 permet de mettre en oeuvre une poulie à partir de composants simples d'utilisation et peu coûteux. L'invention permet de mettre en oeuvre une poulie 3024192 3 présentant des moyens de serrage sur un axe, moyens qui permettent de limiter les vibrations et le bruit transmis par l'intermédiaire du moteur. Dans un mode de réalisation de l'invention, le 5 moyen de liaison rotative comprend un roulement. Selon une variante de l'invention, le moyen de liaison rotative est fixé au corps de poulie par frettage. Dans un mode de réalisation de l'invention, ledit moyen de blocage axial comprend une bague d'appui.The present invention relates to the field of transport. More particularly, the invention relates to a belt guiding system. The minimization of costs and congestion is a recurring problem in the automotive field. For this purpose, the arrangement of the engine block, and especially of the distribution, is one of the important elements to be taken into account so as to save in terms of space, while not affecting the operating capacities of such bodies or systems. . To do this, it is known to implement such a system near the engine support. However, and also in a known manner, the motor support must not be integral with the distribution system so as to avoid the vibrations and noise rising due to the operation of the combustion engine and transmitted by the timing belt, so that not disturb the cabin. In other words, it is necessary not to transmit vibrations due to the gear slip of the toothed timing belt on the idler pulley. A disadvantage, or rather risk, of such a system, would be to raise vibrations and therefore noise in the vehicle through the engine pads and the solid contact between the elements. The invention particularly aims to solve at least in part the disadvantages of the prior art. In particular, an objective of at least one embodiment of the invention is to provide an installation 3024192 2 to optimize the size of the distribution system while not reducing the effectiveness of such a transmission of motion. Another object of at least one embodiment of the invention is to provide such elements which make it possible not to transmit vibrations and noises due to the operation of the motor for example. Yet another object of at least one embodiment of the invention is to provide such elements which are simple to use and inexpensive to implement. These objectives, as well as others which will appear thereafter, are achieved by means of a guide pulley movable in rotation about an axis and comprising: an outer portion in the form of a pulley body having a substantially tubular profile and comprising an outer surface provided with a plurality of regularly arranged teeth; rotatable connecting means secured to said pulley body and for rotating said pulley body about the axis of rotation; a means for axially locking the pulley with respect to the axis of rotation. According to the invention, the locking means has damping properties for isolating the axis of rotation of vibrations transmitted from the pulley body. Thus, the invention proposes a new and inventive approach to solve at least some of the disadvantages of the prior art. In particular, the invention makes it possible to use a pulley from components which are simple to use and inexpensive. The invention makes it possible to implement a pulley 3024192 3 having clamping means on an axis, means which make it possible to limit the vibrations and the noise transmitted via the motor. In one embodiment of the invention, the rotational link means comprises a bearing. According to a variant of the invention, the rotary connection means is fixed to the pulley body by hooping. In one embodiment of the invention, said axial locking means comprises a support ring.
10 Dans cette hypothèse, ladite bague d'appui peut être faite en Nylon. Ainsi, cela permet de mettre en oeuvre une bague d'appui en un matériau peu coûteux et qui est parfaitement adapté à effectuer un serrage avec possibles frottements.In this case, said support ring may be made of nylon. Thus, it allows to implement a support ring of inexpensive material and which is perfectly suited to perform a clamping with possible friction.
15 Dans une variante de l'invention, la bague d'appui étant formée de plusieurs sections tubulaires juxtaposées. L'invention concerne également une installation de guidage de courroie fixée à un support moteur, ladite installation comprenant : 20 - une poulie de guidage selon l'une des revendications précédentes ; - une vis de fixation formant axe de rotation pour ladite poulie de guidage. Selon au moins un mode de réalisation, ladite vis 25 de fixation est apte à solidariser ladite installation à un support moteur. L'invention concerne également un véhicule automobile comprenant au moins une installation de guidage de courroie selon l'une des modes de réalisation précités.In a variant of the invention, the support ring being formed of several tubular sections juxtaposed. The invention also relates to a belt guide installation fixed to a motor support, said installation comprising: - a guide pulley according to one of the preceding claims; a fixing screw forming an axis of rotation for said guide pulley. According to at least one embodiment, said fixing screw 25 is adapted to secure said installation to a motor support. The invention also relates to a motor vehicle comprising at least one belt guide installation according to one of the aforementioned embodiments.
30 D'autres caractéristiques et avantages de l'invention apparaitront plus clairement à la lecture de la description suivante d'un mode de réalisation, donné à 3024192 4 titre de simple exemple illustratif et non limitatif, et des dessins annexés, parmi lesquels : la figure 1 est une vue coupe et en perspective d'une poulie selon un mode de réalisation de l'invention ; - la figure 2 est une autre vue en perspective d'une installation selon un mode de réalisation de l'invention ; et la figure 3 est une vue en perspective d'une installation fixé à un support moteur selon le mode de 10 réalisation de la figure 2 ; et On présente par la suite, en relation avec les figures 1 à 3, un mode de réalisation de l'invention. Comme illustré sur ces figures, et plus particulièrement sur la figure 1, la poulie de guidage 15 comprend : une portion externe sous la forme d'un corps 1 de poulie ; un moyen de liaison rotative fixé au contact du corps de poulie et destiné à permettre la rotation du 20 corps de poulie autour de l'axe de rotation ; et un moyen de blocage axial de la poulie par rapport à l'axe de rotation. Dans ce mode de réalisation, le moyen de liaison rotative 2 comprend uniquement un roulement. Toutefois, on 25 pourrait prévoir d'autes modes de réalisation dans lesquels le moyen de liaison comprendrait d'autres éléments. De même, dans ce mode de réalisation, le moyen de blocage axial 3 comprend uniquement une bague d'appui 30 fixée solidaire de l'axe de rotation. Le corps de poulie, c'est-à-dire en d'autres termes la couche externe de la poulie, présente un profil 3024192 5 sensiblement tubulaire de sorte à pouvoir encercler le roulement. Elle comprend en outre une surface extérieure munie d'une pluralité de dents 10 régulièrement ménagées sur tout le contour de cette surface extérieure.Other features and advantages of the invention will appear more clearly on reading the following description of an embodiment, given as a simple illustrative and nonlimiting example, and the appended drawings, among which: Figure 1 is a sectional and perspective view of a pulley according to one embodiment of the invention; - Figure 2 is another perspective view of an installation according to one embodiment of the invention; and FIG. 3 is a perspective view of an installation attached to a motor support according to the embodiment of FIG. 2; Next, with reference to FIGS. 1 to 3, an embodiment of the invention is presented. As illustrated in these figures, and more particularly in FIG. 1, the guide pulley 15 comprises: an outer portion in the form of a pulley body 1; rotatable connecting means secured in contact with the pulley body and for rotating the pulley body about the axis of rotation; and means for axially locking the pulley with respect to the axis of rotation. In this embodiment, the rotary connection means 2 comprises only one bearing. However, other embodiments could be provided in which the connecting means would comprise other elements. Similarly, in this embodiment, the axial locking means 3 comprises only a fixed support ring 30 secured to the axis of rotation. The pulley body, i.e. in other words the outer layer of the pulley, has a substantially tubular profile so as to encircle the bearing. It further comprises an outer surface provided with a plurality of teeth 10 regularly formed on the entire contour of this outer surface.
5 La portion intermédiaire présente, quant à elle, un profil sensiblement tubulaire et est placé au contact dudit corps de poulie 1. Dans ce mode de réalisation, elle est placée au contact du corps de poulie 1, ou fixée au corps de poulie 1, par frettage. Bien évidemment, on pourrait prévoir d'autres modes de réalisation dans lesquels cette portion intermédiaire serait fixée différemment au corps de poulie 1. Quant à la portion intérieure, c'est-à-dire la bague d'appui, elle présente également un profil sensiblement tubulaire. Cette bague d'appui 3 est apte à fournir un serrage de la poulie de guidage sur un axe A de rotation, comme illustré notamment sur la figure 2. Dans cet exemple, la bague d'appui est formée de plusieurs sections tubulaires juxtaposées. Plus particulièrement, dans ce mode de réalisation, la bague d'appuis est formée de deux sections tubulaires 30, 31. Par ailleurs, cette bague d'appui 3 est réalisée en Nylon, ce qui permet de mettre en oeuvre une pièce présentant une résistance suffisante pour les forces qui vont s'exercer sur elle, et pour empêcher la transmission des vibrations de la courroie. Bien évidemment, on pourrait mettre en oeuvre une bague d'appui fabriquée dans un autre matériau, tel qu'une matière non métallique. Comme visible sur les différentes figures, la 30 poulie de guidage de courroie fait partie d'un plus grand ensemble, nommé par la suite installation de guidage. Outre la poulie de guidage, l'installation de guidage de 3024192 6 courroie comprend une vis de fixation formant axe de rotation A pour ladite poulie de guidage. Cette vis de fixation permet de fixer, ou solidariser, l'installation de guidage de la courroie à un support moteur. Cette 5 instalation s'applique particulièrement pour une courroie de distribution. Toutefois, on pourrait imaginer des modes de réalisation dans lesquels on pourrait employer une telle installation pour le guidage d'une courroie quelconque. Une telle installation permet ainsi de ne pas 10 transmettre de vibration et donc du bruit dans le véhicule par l'intermédiaire du moteur. En outre, une telle installation permet d'engendrer un coût faible de la fixation au support moteur 5 ainsi qu'un processus d'assemblage de l'ensemble relativement aisé.The intermediate portion, for its part, has a substantially tubular profile and is placed in contact with said pulley body 1. In this embodiment, it is placed in contact with the pulley body 1, or fixed to the pulley body 1, by frettage. Of course, other embodiments could be provided in which this intermediate portion would be attached differently to the pulley body 1. As for the inner portion, that is to say the support ring, it also has a profile. substantially tubular. This support ring 3 is able to provide a clamping of the guide pulley on an axis A of rotation, as illustrated in particular in Figure 2. In this example, the support ring is formed of several tubular sections juxtaposed. More particularly, in this embodiment, the support ring is formed of two tubular sections 30, 31. Moreover, this support ring 3 is made of nylon, which allows to implement a part having a resistance. sufficient for the forces that will be exerted on it, and to prevent the transmission of vibrations of the belt. Of course, one could implement a support ring made of another material, such as a non-metallic material. As seen in the various figures, the belt guide pulley forms part of a larger assembly, hereafter referred to as a guide installation. In addition to the guide pulley, the belt guide assembly comprises a rotational axis fixing screw A for said guide pulley. This fixing screw makes it possible to fix, or to secure, the guide installation of the belt to an engine support. This installation is particularly applicable for a timing belt. However, one could imagine embodiments in which such an installation could be used for guiding any belt. Such an installation thus makes it possible not to transmit vibration and therefore noise in the vehicle via the engine. In addition, such an installation makes it possible to generate a low cost of attachment to the motor support 5 as well as a relatively easy assembly process for the assembly.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1457093A FR3024192B1 (en) | 2014-07-23 | 2014-07-23 | GUIDE PULLEY FOR MOTOR VEHICLE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1457093A FR3024192B1 (en) | 2014-07-23 | 2014-07-23 | GUIDE PULLEY FOR MOTOR VEHICLE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR3024192A1 true FR3024192A1 (en) | 2016-01-29 |
| FR3024192B1 FR3024192B1 (en) | 2016-07-15 |
Family
ID=51726725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1457093A Active FR3024192B1 (en) | 2014-07-23 | 2014-07-23 | GUIDE PULLEY FOR MOTOR VEHICLE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR3024192B1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2118675A (en) * | 1982-04-17 | 1983-11-02 | Skf Kugellagerfabriken Gmbh | A combination of a carrier body and a pulley body |
| DE19525744A1 (en) * | 1995-07-14 | 1997-01-16 | Litens Automotive Gmbh | Drive transfer device for vehicle - has effective damping between idler and drive shaft comprising preloaded contact friction surfaces |
| WO2008047046A1 (en) * | 2006-10-20 | 2008-04-24 | Renault S.A.S | Filtration crankshaft pulley |
| DE102009005740A1 (en) * | 2008-02-15 | 2009-08-20 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Damper i.e. generator damper, for auxiliary unit of internal combustion engine, has springs supported at contact area of drive part with end and at area of attachment part with another end, and hub part connected with attachment part |
-
2014
- 2014-07-23 FR FR1457093A patent/FR3024192B1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2118675A (en) * | 1982-04-17 | 1983-11-02 | Skf Kugellagerfabriken Gmbh | A combination of a carrier body and a pulley body |
| DE19525744A1 (en) * | 1995-07-14 | 1997-01-16 | Litens Automotive Gmbh | Drive transfer device for vehicle - has effective damping between idler and drive shaft comprising preloaded contact friction surfaces |
| WO2008047046A1 (en) * | 2006-10-20 | 2008-04-24 | Renault S.A.S | Filtration crankshaft pulley |
| DE102009005740A1 (en) * | 2008-02-15 | 2009-08-20 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Damper i.e. generator damper, for auxiliary unit of internal combustion engine, has springs supported at contact area of drive part with end and at area of attachment part with another end, and hub part connected with attachment part |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3024192B1 (en) | 2016-07-15 |
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