FR2517771A1 - Guide roller on shaft - has axial and lateral bearings with slightly convex surfaces contacting guide rail - Google Patents
Guide roller on shaft - has axial and lateral bearings with slightly convex surfaces contacting guide rail Download PDFInfo
- Publication number
- FR2517771A1 FR2517771A1 FR8122719A FR8122719A FR2517771A1 FR 2517771 A1 FR2517771 A1 FR 2517771A1 FR 8122719 A FR8122719 A FR 8122719A FR 8122719 A FR8122719 A FR 8122719A FR 2517771 A1 FR2517771 A1 FR 2517771A1
- Authority
- FR
- France
- Prior art keywords
- roller
- shaft
- guide roller
- guide rail
- slightly convex
- 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.)
- Pending
Links
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
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/381—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with at least one row for radial load in combination with at least one row for axial load
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
- F16C33/605—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
Description
La présente invention est relative à un galet de guidage et concerne, entre autres, ceux utilisés en combinaisoh avec des rails de guidage ayant une section en Vé. The present invention relates to a guide roller and relates, among others, to those used in combination with guide rails having a V-shaped section.
En l'état actuel de la technique, le galet tourne librement sur un arbre fixe avec interposition d'aiguilles ou d'une cage à aiguilles,ledit galet étant immobilisé axialement par rapport audit arbre. In the current state of the art, the roller turns freely on a fixed shaft with the interposition of needles or a needle cage, said roller being immobilized axially with respect to said shaft.
Un-tel organe donne satisfaction à la condition qu'il soit soumis exclusivement à une charge dont la résultante est contenue dans le plan médian du galet. Such an organ satisfies the condition that it is subjected exclusively to a load, the result of which is contained in the median plane of the roller.
Actuellement, on tend à l'aide de tels galets à déplacer des ensembles dont la résultante des forces soumet ledit galet à un couple voire même à une force axiale. Currently, there is a tendency with the aid of such rollers to move assemblies the result of which the forces subject said roller to a torque or even to an axial force.
Lorsque le couple n'est pas important, il est possible de l'absorber sans trop nuire à la qualité du guidage en utilisant des aiguilles relativement longues mais cette solution est très imparfaite car elle-augmente l'épaisseur du galet et, de plus, elle ne permet pas d'absorber un effort axial. When the torque is not significant, it is possible to absorb it without detracting too much from the quality of the guidance using relatively long needles, but this solution is very imperfect because it increases the thickness of the roller and, moreover, it does not absorb an axial force.
La présente invention qui remédie à ces inconvénients est remarquable en ce que les contacts latéraux du galet avec la tête de l'arbre et la bague de verrouillage s'effectuent par l'entremise d'une butée à aiguilles ou à billes. The present invention which overcomes these drawbacks is remarkable in that the lateral contacts of the roller with the head of the shaft and the locking ring are effected by means of a needle or ball stop.
D'autres caractéristiques apparaitront mieux par la description qui va suivre faite en se référant aux dessins annexés à titre d'exemple indicatif seulement,sur lesquels:
La figure 1 est une vue en coupe d'un galet conforme à l'invention
La figure 2 est une vue partielle en coupe et à plus grande échelle montrant, en variante, un galet à contact ponctuel en prise avec un rail de guidage;
La figure 3 est une coupe partielle d'une variante de la figure 1 dans laquelle les aiguilles latérales sont en contact direct avec le fond des lamages latéraux du galet;
La figure 4 est une coupe partielle d'une variante montrant un galet à gorge coopérant avec un rail biseauté.Other characteristics will appear better from the following description made with reference to the accompanying drawings by way of indicative example only, in which:
Figure 1 is a sectional view of a roller according to the invention
Figure 2 is a partial sectional view on a larger scale showing, alternatively, a pinch roller in point contact with a guide rail;
Figure 3 is a partial section of a variant of Figure 1 in which the side needles are in direct contact with the bottom of the side countersinks of the roller;
Figure 4 is a partial section of a variant showing a grooved roller cooperating with a beveled rail.
En se reportant aux dessins, et selon un mode de réalisation, on voit que le galet 1, du genre biconique par exemple, est centré sur un arbre 2 pourvu d'une tête 3 par l'entremise d'aiguilles 4 jointives.Le galet 1 est immobilisé axialement sur l'arbre 2 par l'entremise d'une bague 5 de verrouillage emmanchée à force sur la queue 6 de l'arbre 1 et prenant appui contre un épaulement 7 de celui-ci. Referring to the drawings, and according to one embodiment, it can be seen that the roller 1, of the biconical type for example, is centered on a shaft 2 provided with a head 3 by means of adjoining needles. 1 is immobilized axially on the shaft 2 by means of a locking ring 5 force fitted on the tail 6 of the shaft 1 and bearing against a shoulder 7 thereof.
Selon l'invention, le contact entre les faces latérales du galet 1 et la tête 3 ou la bague 5 s'effectue par l'entremise de butées à aiguilles 8. According to the invention, the contact between the lateral faces of the roller 1 and the head 3 or the ring 5 is effected by means of needle stops 8.
Selon une variante,non représentée, on pourrait utiliser une butée à billes-, voire même des billes jointives. According to a variant, not shown, one could use a thrust ball bearing, or even contiguous balls.
On interposé entre chaque face du galet et la butée à aiguilles 8 correspondante une rondelle 9 en acier,formant un chemin de roulement et immobilisant axialement les aiguilles4. Interposed between each face of the roller and the corresponding needle stopper 8 is a steel washer 9, forming a raceway and axially immobilizing the needles4.
Selon la figure 3 on voit-qu'on peut supprimer les rondelles 9. Dans ce cas, les aiguilles sont en contact direct avec le fond des lamages latéraux du galet,ledit fond s'étendant jusqu'à proximité de l'arbre 2 pour maintenir les aiguilles 4. According to FIG. 3, it can be seen that the washers 9 can be eliminated. In this case, the needles are in direct contact with the bottom of the lateral counterbores of the roller, said bottom extending as far as the shaft 2 for hold the needles 4.
Comme les aiguilles 4 supportent uniquement les efforts radiaux leur longueur peut être relativement courte. As the needles 4 only support radial forces, their length can be relatively short.
L'invention permet donc de réaliser des galets moins épais bien qu'ils présentent des caractéristiques supérieures à ceux existants. The invention therefore makes it possible to produce thinner rollers although they have characteristics superior to those existing.
Comme le galet 1 est biconique, il est destiné à être utilisé avec un rail R présentant une section en Vé,le contact entre le rail et le galet- s 'effectuant selon deux génératrices rectilignes. As the roller 1 is biconical, it is intended to be used with a rail R having a V-shaped section, the contact between the rail and the roller being effected according to two rectilinear generators.
Si le galet de l'invention est soumis à une force axiale et,ou, à un couple importants ceux-ci seront sans effet sur la rotation dudit galet autour de son arbre,mais ces forces peuvent néanmoins entraîner- des déformations des structures maintenant le rail et nuire à la souplesse du guidage voire provoquer des blocages. If the roller of the invention is subjected to an axial force and, or, to a significant torque these will have no effect on the rotation of said roller around its shaft, but these forces can nevertheless lead to deformations of the structures maintaining the rail and impair the flexibility of the guide or even cause blockages.
Selon l'invention, on remédie à cet inconvénient' en réalisant des galets dont chacun des chemins 10 affecte,en section diamétrale,une forme convexe de façon à réaliser un contact sensiblement ponctuel entre la génératrice du chemin de roulement et le rail. According to the invention, this drawback is remedied by producing rollers, each of the paths 10 of which, in diametral section, has a convex shape so as to make a substantially punctual contact between the generator of the raceway and the rail.
Sans sortir du cadre de l'invention et bien que cela soit plus difficile à réaliser, on peut concevoir des rails dont les génératrices des chemins de roulement sont convexes alors que les galets sont biconiques. Without departing from the scope of the invention and although this is more difficult to achieve, it is possible to design rails whose generators of the raceways are convex while the rollers are biconical.
Enfin,dans tous les cas, l'invention s'étend aussi aux galets ayant une gorge médiane à section en forme de Vé à côtés rectilignes ou convexes coopérant avec des rails présentant un double biseau ( figure 4). Finally, in all cases, the invention also extends to the rollers having a median groove with a V-shaped section with rectilinear or convex sides cooperating with rails having a double bevel (FIG. 4).
Bien entendu, la présente invention ne se limite pas aux modes de réalisations décrits et représentés mais s'étend, au contraire, à toutes variantes de formes et dimensions. Of course, the present invention is not limited to the embodiments described and shown but extends, on the contrary, to all variants of shapes and dimensions.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8122719A FR2517771A1 (en) | 1981-12-04 | 1981-12-04 | Guide roller on shaft - has axial and lateral bearings with slightly convex surfaces contacting guide rail |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8122719A FR2517771A1 (en) | 1981-12-04 | 1981-12-04 | Guide roller on shaft - has axial and lateral bearings with slightly convex surfaces contacting guide rail |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2517771A1 true FR2517771A1 (en) | 1983-06-10 |
Family
ID=9264679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8122719A Pending FR2517771A1 (en) | 1981-12-04 | 1981-12-04 | Guide roller on shaft - has axial and lateral bearings with slightly convex surfaces contacting guide rail |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2517771A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2686381A1 (en) * | 1992-01-16 | 1993-07-23 | Nadella Cuscinetti Spa | Idling roller with tapered (conical) rolling elements |
EP0568852A1 (en) * | 1992-05-04 | 1993-11-10 | ROLLON S.p.A. | A linear bearing with rolling members consisting of rollers with curved profiles |
CN103089800A (en) * | 2011-11-04 | 2013-05-08 | 易通实业(宁波)有限公司 | High temperature resistant guide rail roller |
DE102018101870A1 (en) * | 2017-12-21 | 2019-06-27 | Schaeffler Technologies AG & Co. KG | support bearings |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB115580A (en) * | 1917-10-16 | 1918-05-16 | William Robert Fasey | Improvements connected with Cam Driving Mechanism. |
FR1351774A (en) * | 1963-03-14 | 1964-02-07 | Zahnradfabrik Friedrichshafen | Combined radial bearing and thrust bearing assembly, in particular for mounting rotary members |
FR1585814A (en) * | 1967-10-16 | 1970-01-30 | ||
US4011670A (en) * | 1975-04-09 | 1977-03-15 | Caterpillar Tractor Co. | Roller mounting |
-
1981
- 1981-12-04 FR FR8122719A patent/FR2517771A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB115580A (en) * | 1917-10-16 | 1918-05-16 | William Robert Fasey | Improvements connected with Cam Driving Mechanism. |
FR1351774A (en) * | 1963-03-14 | 1964-02-07 | Zahnradfabrik Friedrichshafen | Combined radial bearing and thrust bearing assembly, in particular for mounting rotary members |
FR1585814A (en) * | 1967-10-16 | 1970-01-30 | ||
US4011670A (en) * | 1975-04-09 | 1977-03-15 | Caterpillar Tractor Co. | Roller mounting |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2686381A1 (en) * | 1992-01-16 | 1993-07-23 | Nadella Cuscinetti Spa | Idling roller with tapered (conical) rolling elements |
EP0568852A1 (en) * | 1992-05-04 | 1993-11-10 | ROLLON S.p.A. | A linear bearing with rolling members consisting of rollers with curved profiles |
CN103089800A (en) * | 2011-11-04 | 2013-05-08 | 易通实业(宁波)有限公司 | High temperature resistant guide rail roller |
DE102018101870A1 (en) * | 2017-12-21 | 2019-06-27 | Schaeffler Technologies AG & Co. KG | support bearings |
DE102018101870B4 (en) | 2017-12-21 | 2022-09-29 | Schaeffler Technologies AG & Co. KG | support bearing |
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