WO2007101771A1 - Pulley for a traction mechanism drive - Google Patents
Pulley for a traction mechanism drive Download PDFInfo
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- WO2007101771A1 WO2007101771A1 PCT/EP2007/051398 EP2007051398W WO2007101771A1 WO 2007101771 A1 WO2007101771 A1 WO 2007101771A1 EP 2007051398 W EP2007051398 W EP 2007051398W WO 2007101771 A1 WO2007101771 A1 WO 2007101771A1
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- hub
- shell
- outer ring
- shells
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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
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H55/44—Sheet-metal pulleys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
Definitions
- the present invention relates to a pulley for a traction mechanism, comprising a non-cutting made rotor disk.
- the structure provides that the running disk is connected via a hub to a roller bearing, via which the belt pulley is rotatably mounted.
- the running disk forms a lateral surface which, in the operating state, is at least partially enclosed by a traction means.
- pulleys are known with a multi-part constructed disk.
- two half-shells which together form the running disk, preferably riveted, radially caulked or materially connected, in particular by means of a weld or soldering.
- the riveting or all other measures that combine the half-shells of the running disk cause damage to the coated running disk, which may result in damage due to corrosion and premature failure.
- the document US 38 33 278 A discloses a non-cutting shaped rotor disk whose hub is positioned and fixed to an inner ring of the rolling bearing. Due to the complex cross-sectional shape, this concept increases the production costs and makes the mounting of the running disk more difficult, since, on the one hand, the bearing rings have to be manufactured and assembled,
- the invention has for its object to realize a permanent attachment of the rotor disk to the rolling bearing to improve the reliability of the pulley.
- the pulley according to the invention comprises two mirror-image assembled half shells, which together form the running disk.
- the running disks are supported by a largely radially aligned central web which connects the hub to the lateral surface.
- the attachment of each half-shell takes place in the region of the hub via a positive fixation on the outer ring of the rolling bearing.
- a preferred attachment of the half shells provides that their hubs have at least partially radially inwardly directed beads, which engage positively in the installed state in correspondingly arranged recesses of the rolling bearing outer ring.
- the invention includes a running disk in which each hub of the half-shell has axially spaced beads and / or annular grooves. According to the position of the beads and / or annular grooves of the half-shell in the region of the hub, the outer ring of the roller bearing is provided with correspondingly arranged recesses to achieve a positive locking engagement. Due to the double-row arrangement of the fastening means, an improved positional fixation of the half-shell on the roller bearing outer ring can be achieved.
- a preferred embodiment of the half-shells provides that they form a C-shaped or a U-shaped cross-sectional profile.
- the inner leg serves as a hub and is in the installed state frictional and / or positive fit with the outer contour of the rolling bearing outer ring in connection PHg.
- the outer leg of the C- or U-shaped running disk forms one half of the running disk-jacket surface on which the traction means is guided in the installed state.
- each half-shell in the region of the lateral surface in each case form a radially outwardly directed board end. In the installed state of the pulley, this serves as an axial limit representing board as a guide of the traction means.
- the hub Regardless of the design of the half-shells in the region of the lateral surface, it is advisable to extend the hub axially so far that an end radially inwardly directed board is supported on the front side of the outer ring of the rolling bearing.
- This shape forms next to a defined mounting position of the half-shell hub a pre-seal for the rolling bearing.
- the board is guided in compliance with an annular gap up to the outer contour or lateral surface of the axle on which the belt pulley is mounted on roller bearings.
- a further advantageous embodiment of the pulley according to the invention refers to an improved frictional attachment of the half-shell to the rolling bearing outer ring. For this purpose, it is advisable to form an angle ".alpha.”> 90.degree.
- a cost-effective production of the running disk provides that these components are produced without cutting by a deep drawing of sheet metal.
- the process used at the same time includes the molding of the beads and / or the annular groove and requires no further rework.
- an extrusion molding process can be used to make the half shells.
- An improved stiffening of the half-shells can be achieved by the wall thickness of the half-shell in the region of the hub exceeds the wall thicknesses of other half-shell sections.
- Figure 1 a pulley according to the invention in the installed state, in which the half shells in the region of the lateral surface include radially outwardly directed shelves;
- FIG. 2 shows, on an enlarged scale, a detail of FIG. 1;
- Figure 3 shows another embodiment of the invention, in which the running shell includes a cylindrical outer contour without board;
- Figure 4 another drive disc according to the invention as a single part.
- pulley 1 shows a pulley 1a according to the invention, which is rotatably mounted on a roller 3 via a rolling bearing 2.
- the rolling bearing 2 is designed as a double grooved ball bearing, wherein the rolling elements 2 are guided on the inside in staggered tracks 4a, 4b of the axis 3 and on the outside in corresponding raceways of an outer ring 6.
- pulley 7a includes the pulley 1a half shells 8a, which are each made without cutting, preferably by a deep-drawing process.
- Each half shell 8a forms on the inside a hub 9a and on the outside a lateral surface 10a, on which in connection with the further lateral surface 10a of the adjacent half shell 8a, a traction means not shown in FIG.
- End sides radially outwardly directed ribs 12 of the half-shells 8a are used in the installed state for guiding the traction means.
- the lateral surface 10a extends radially spaced, concentric with the hub 9a and is connected via a central web 11.
- the design of the two half-shells 8a provides that they are arranged in mirror image, are supported in the installed state via the central web 11 against each other.
- the hub 9a of both half-shells 8a are positively secured to the outer ring 6.
- FIG. 1 Details of the positive connection between the rotor 7a and the outer ring 6 illustrates the figure 2, which illustrates these details on a larger scale.
- the hubs 9a coincide with a radially inwardly directed bead 13, which engage in corresponding recesses 14 of the outer ring 6.
- rounded shaped bead 13 it is advisable to mold an annular groove in the hub 9a, which engages in a corresponding, preferably designed as a circumferential groove recess 14 of the outer ring 6.
- Each hub 9a is further provided at the end with a radially inwardly directed board 16, which is guided in accordance with Figure 1 while maintaining an annular gap 15 to the outer contour or to the lateral surface of the axis 3.
- the shelves 16 cause a pre-seal for the rolling bearing. 2
- the running disk 7b comprises the half-shells 8b which are comparable to the running disk 7b according to FIG. 1 via the hubs 9b by means of beads 13 and recesses 14 connected to the outer ring 6 of the rolling bearing 2.
- the design of the central webs 11 of the half-shells 8b provides that they are supported on the outside only in the region of the lateral surface 10b against each other.
- the lateral surface 10b is fully cylindrical, d. H. without ends directed to the outside.
- FIG. 4 shows the running disk 7c as an individual part, consisting of two half-shells 8c, which together form the outer surface 10c delimited by ribs 12 on the outside.
- the hubs 9c in contrast to the half-shells 8a according to FIG. 1, have no end 16 on the end.
- an angle " ⁇ " which is established between the hub 10 and the central web 11,> 90 °, to create a constant support of the hub 9c the lateral surface of the axis.
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- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Pulleys (AREA)
Abstract
Description
Bezeichnung der Erfindung Name of the invention
Riemenscheibe für einen ZugmitteltriebPulley for a traction drive
Gebiet der ErfindungField of the invention
Die vorliegende Erfindung betrifft eine Riemenscheibe für einen Zugmitteltrieb, die eine spanlos hergestellte Laufscheibe umfasst. Der Aufbau sieht vor, dass die Laufscheibe über eine Nabe mit einem Wälzlager verbunden ist, über das die Riemenscheibe drehbar gelagert ist. Außenseitig bildet die Laufscheibe eine Mantelfläche, die im Betriebszustand zumindest teilweise von einem Zugmittel umschlossen ist.The present invention relates to a pulley for a traction mechanism, comprising a non-cutting made rotor disk. The structure provides that the running disk is connected via a hub to a roller bearing, via which the belt pulley is rotatably mounted. On the outside, the running disk forms a lateral surface which, in the operating state, is at least partially enclosed by a traction means.
Hintergrund der ErfindungBackground of the invention
Bekannte Riemenscheiben sind über handelsübliche Wälzlagerungen drehbar gelagert, wobei vorzugsweise ein Außenring des Wälzlagers mittels einer Presspassung in die zentrische Nabe einer Laufscheibe eingepresst ist. Bei dieser Bauart besteht die Gefahr, dass bei einem nachteiligen ungünstigen Zu- sammentreffen von Fertigungstoleranzen, insbesondere der Laufscheibe, ein selbsttätiges Abwandern bzw. Lösen der Laufscheibe von dem Wälzlagerring eintreten kann.Known pulleys are rotatably mounted on commercially available rolling bearings, wherein preferably an outer ring of the rolling bearing is pressed by means of a press fit into the central hub of a rotor disk. In the case of this type of construction, there is the risk that in the case of a disadvantageous, unfavorable coincidence of manufacturing tolerances, in particular of the running disk, an automatic drifting or loosening of the running disk from the rolling bearing ring can occur.
Weiterhin sind Riemenscheiben mit einer mehrteilig aufgebauten Laufscheibe bekannt. Dazu sind zwei Halbschalen, die gemeinsam die Laufscheibe bilden, vorzugsweise vernietet, radial verstemmt oder auch stoffschlüssig, insbesondere mittels einer Schweißung oder Lötung verbunden. Zur Lagefixierung und gleichzeitiger axialer Sicherung bietet es sich an, die Halbschalen jeweils mit einem Bord zu versehen, der sich stirnseitig an dem Wälzlager-Außenring ab- stützt. Die Nietung bzw. alle übrigen Maßnahmen, mit denen die Halbschalen der Laufscheibe zusammengefasst werden, verursachen eine Beschädigung der beschichteten Laufscheibe, wodurch die Gefahr besteht, dass diese bedingt durch eine Korrosion beschädigt und vorzeitig ausfallen. Das Dokument US 38 33 278 A offenbart eine spanlos geformte Laufscheibe, deren Nabe an einem Innenring des Wälzlagers positioniert und fixiert ist. Dieses Konzept erhöht aufgrund der aufwändigen Querschnittsform die Herstell- kosten und erschwert die Montage der Laufscheibe, erschwert, da einerseits die Lagerringe zu fertigen und zu montieren sind,Furthermore pulleys are known with a multi-part constructed disk. For this purpose, two half-shells, which together form the running disk, preferably riveted, radially caulked or materially connected, in particular by means of a weld or soldering. For fixing the position and simultaneous axial securing, it is advisable to provide the half-shells in each case with a board which is braced on the end face of the roller bearing outer ring. The riveting or all other measures that combine the half-shells of the running disk cause damage to the coated running disk, which may result in damage due to corrosion and premature failure. The document US 38 33 278 A discloses a non-cutting shaped rotor disk whose hub is positioned and fixed to an inner ring of the rolling bearing. Due to the complex cross-sectional shape, this concept increases the production costs and makes the mounting of the running disk more difficult, since, on the one hand, the bearing rings have to be manufactured and assembled,
Aufgabe der ErfindungObject of the invention
Der Erfindung liegt die Aufgabe zugrunde, eine dauerfeste Befestigung der Laufscheibe an dem Wälzlager zu realisieren, um die Betriebssicherheit der Riemenscheibe zu verbessern.The invention has for its object to realize a permanent attachment of the rotor disk to the rolling bearing to improve the reliability of the pulley.
Zusammenfassung der ErfindungSummary of the invention
Zur Lösung dieser Problemstellung umfasst die Riemenscheibe erfindungsgemäß zwei spiegelbildlich zusammengefügte Halbschalen, die gemeinsam die Laufscheibe bilden. Im Einbauzustand sind die Laufscheiben über einen wei- testgehend radial ausgerichteten Mittelsteg abgestützt, der die Nabe mit der Mantelfläche verbindet. Die Befestigung jeder Halbschale erfolgt im Bereich der Nabe über eine formschlüssige Fixierung an dem Außenring des Wälzlagers.To solve this problem, the pulley according to the invention comprises two mirror-image assembled half shells, which together form the running disk. In the installed state, the running disks are supported by a largely radially aligned central web which connects the hub to the lateral surface. The attachment of each half-shell takes place in the region of the hub via a positive fixation on the outer ring of the rolling bearing.
Weitere vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Ansprüche 2 bis 11.Further advantageous embodiments of the invention are the subject of the dependent claims 2 to 11.
Eine bevorzugte Befestigung der Halbschalen sieht vor, dass deren Naben zumindest partiell radial nach innen ausgerichtete Sicken aufweisen, die im Einbauzustand formschlüssig in korrespondierend angeordnete Ausnehmungen des Wälzager-Außenrings eingreifen.A preferred attachment of the half shells provides that their hubs have at least partially radially inwardly directed beads, which engage positively in the installed state in correspondingly arranged recesses of the rolling bearing outer ring.
Alternativ dazu bietet es sich an, in die Naben der Halbschalen spanlos eine Ringnut einzuformen, die mit entsprechenden Umlaufnuten bzw. Ausnehmungen des äußeren Wälzlagerrings zusammenwirken. Weiterhin schließt die Erfindung eine Laufscheibe ein, bei der jede Nabe der Halbschale axial beabstandete Sicken und / oder Ringnuten aufweist. Entsprechend der Lage von den Sicken und / oder Ringnuten der Halbschale im Be- reich der Nabe ist der Außenring des Wälzlagers, zur Erzielung einer formschlüssigen Verrastung mit entsprechend angeordneten Ausnehmungen versehen. Durch die doppelreihige Anordnung der Befestigungsmittel kann eine verbesserte Lagefixierung der Halbschale an dem Wälzlager-Außenring erzielt werden.Alternatively, it is advisable to mold into the hubs of the half-shells an annular groove, which cooperate with corresponding recirculating grooves or recesses of the outer rolling bearing ring. Furthermore, the invention includes a running disk in which each hub of the half-shell has axially spaced beads and / or annular grooves. According to the position of the beads and / or annular grooves of the half-shell in the region of the hub, the outer ring of the roller bearing is provided with correspondingly arranged recesses to achieve a positive locking engagement. Due to the double-row arrangement of the fastening means, an improved positional fixation of the half-shell on the roller bearing outer ring can be achieved.
Eine bevorzugte Ausgestaltung der Halbschalen sieht vor, dass diese ein C- förmig oder ein U-förmig gestaltetes Querschnittsprofil bilden. Der innere Schenkel dient dabei als Nabe und steht im Einbauzustand kraftschlüssig und / oder formschlüssig mit der Außenkontur des Wälzlager-Außenrings in Verbin- düng. Der äußere Schenkel der C- bzw. U-förmig gestalteten Laufscheibe bildet eine Hälfte der Laufscheiben-Mantelfläche auf der im Einbauzustand das Zugmittel geführt ist.A preferred embodiment of the half-shells provides that they form a C-shaped or a U-shaped cross-sectional profile. The inner leg serves as a hub and is in the installed state frictional and / or positive fit with the outer contour of the rolling bearing outer ring in connection düng. The outer leg of the C- or U-shaped running disk forms one half of the running disk-jacket surface on which the traction means is guided in the installed state.
Abweichend zu der zuvor beschriebenen Laufscheibengestaltung bietet es sich an, dass jede Halbschale im Bereich der Mantelfläche jeweils endseitig einen radial nach außen gerichteten Bord bilden. Im Einbauzustand der Riemenscheibe dient dieser, eine Axialbegrenzung darstellende Bord als Führung des Zugmittels.Notwithstanding the previously described disk design, it makes sense that each half-shell in the region of the lateral surface in each case form a radially outwardly directed board end. In the installed state of the pulley, this serves as an axial limit representing board as a guide of the traction means.
Unabhängig von der Gestaltung der Halbschalen im Bereich der Mantelfläche bietet es sich an, die Nabe axial soweit zu verlängern, dass ein endseitig radial nach innen gerichteter Bord sich stirnseitig an dem Außenring des Wälzlagers abstützt. Diese Formgebung bildet neben einer definierten Einbaulage der Halbschalennabe eine Vorabdichtung für das Wälzlager. Dazu ist der Bord un- ter Einhaltung eines Ringspaltes bis an die Außenkontur bzw. Mantelfläche der Achse geführt, auf der die Riemenscheibe wälzgelagert ist. Eine weitere vorteilhafte Ausgestaltung der erfindungsgemäßen Riemenscheibe, bezieht sich auf eine verbesserte kraftschlüssige Befestigung der Halbschale an dem Wälzlager-Außenring. Dazu bietet es sich an, einen sich zwischen der Nabe und dem Mittelsteg der Halbschale einstellenden Winkel „α" > als 90° ausbilden. Diese Maßnahme bewirkt, dass die bevorzugt im Endbereich der Nabe angebrachte Sicke oder Ringnut im Einbauzustand mit einer ausreichenden Vorspannung in die entsprechende Ringnut oder Ausnehmung des Wälzlager-Außenrings verschnappt.Regardless of the design of the half-shells in the region of the lateral surface, it is advisable to extend the hub axially so far that an end radially inwardly directed board is supported on the front side of the outer ring of the rolling bearing. This shape forms next to a defined mounting position of the half-shell hub a pre-seal for the rolling bearing. For this purpose, the board is guided in compliance with an annular gap up to the outer contour or lateral surface of the axle on which the belt pulley is mounted on roller bearings. A further advantageous embodiment of the pulley according to the invention, refers to an improved frictional attachment of the half-shell to the rolling bearing outer ring. For this purpose, it is advisable to form an angle ".alpha."> 90.degree. Which is established between the hub and the middle web of the half-shell.This measure has the effect that the beading or annular groove, which is preferably mounted in the end region of the hub, has sufficient prestressing in the installed state corresponding annular groove or recess of the rolling bearing outer ring snapped.
Eine kostengünstige Herstellung der Laufscheibe sieht vor, dass diese Bauteile spanlos durch ein Tiefziehverfahren aus Blech hergestellt werden. Das dabei eingesetzte Verfahren schließt gleichzeitig das Anformen der Sicken und / oder der Ringnut ein und erfordert keinerlei weitere Nacharbeit. Alternativ dazu kann zur Herstellung der Halbschalen ein Fließpressverfahren eingesetzt werden.A cost-effective production of the running disk provides that these components are produced without cutting by a deep drawing of sheet metal. The process used at the same time includes the molding of the beads and / or the annular groove and requires no further rework. Alternatively, an extrusion molding process can be used to make the half shells.
Eine verbesserte Versteifung der Halbschalen kann erzielt werden, indem die Wandstärke der Halbschale im Bereich der Nabe die Wandstärken übriger Halbschalenabschnitte übertrifft.An improved stiffening of the half-shells can be achieved by the wall thickness of the half-shell in the region of the hub exceeds the wall thicknesses of other half-shell sections.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die Figuren zeigen Ausführungsbeispiele der Erfindung, die nachfolgend beschrieben werden. Es zeigen:The figures show embodiments of the invention which will be described below. Show it:
Figur 1 : eine erfindungsgemäße Riemenscheibe im Einbauzustand, bei der die Halbschalen im Bereich der Mantelfläche radial nach außen gerichtete Borde einschließen;Figure 1: a pulley according to the invention in the installed state, in which the half shells in the region of the lateral surface include radially outwardly directed shelves;
Figur 2: in einem vergrößertem Maßstab ein Detail der Figur 1 ;FIG. 2 shows, on an enlarged scale, a detail of FIG. 1;
Figur 3: ein weiteres Ausführungsbeispiel der Erfindung, bei der die Laufschale eine zylindrische Außenkontur ohne Bord einschließt; Figur 4: eine weitere erfindungsgemäße Laufscheibe als Einzelteil.Figure 3 shows another embodiment of the invention, in which the running shell includes a cylindrical outer contour without board; Figure 4: another drive disc according to the invention as a single part.
Ausführliche Beschreibung der ZeichnungenDetailed description of the drawings
Die Figur 1 zeigt eine erfindungsgemäße Riemenscheibe 1a, die über ein Wälzlager 2 auf einer Achse 3 drehbar gelagert ist. Das Wälzlager 2 ist als Doppelrillen-Kugellager ausgeführt, wobei die Wälzkörper 2 innenseitig in versetzten Laufbahnen 4a, 4b der Achse 3 und außenseitig in korrespondierende Laufbahnen eines Außenrings 6 geführt sind. Als Laufscheibe 7a schließt die Riemenscheibe 1a Halbschalen 8a ein, die jeweils spanlos, bevorzugt durch ein Tiefziehverfahren hergestellt sind. Jede Halbschale 8a bildet innenseitig eine Nabe 9a sowie außenseitig eine Mantelfläche 10a, an der in Verbindung der weiteren Mantelfläche 10a der benachbarten Halbschale 8a ein in Figur 1 nicht abgebildetes Zugmittel geführt ist. Endseitig radial nach außen gerichtete Borde 12 der Halbschalen 8a dienen im Einbauzustand zur Führung des Zugmittels. Die Mantelfläche 10a verläuft radial beabstandet, konzentrisch zur Nabe 9a und ist dabei über einen Mittelsteg 11 verbunden. Die Gestaltung beider Halbscha- len 8a sieht vor, dass diese spiegelbildlich angeordnet, im Einbauzustand über den Mittelsteg 11 gegeneinander abgestützt sind. Zur Schaffung einer betriebssicheren Befestigung der Laufscheibe 7a an dem Außenrings 6 des Wälzlagers 2 sind die Nabe 9a beider Halbschalen 8a formschlüssig mit dem Außenring 6 befestigt.1 shows a pulley 1a according to the invention, which is rotatably mounted on a roller 3 via a rolling bearing 2. The rolling bearing 2 is designed as a double grooved ball bearing, wherein the rolling elements 2 are guided on the inside in staggered tracks 4a, 4b of the axis 3 and on the outside in corresponding raceways of an outer ring 6. As pulley 7a includes the pulley 1a half shells 8a, which are each made without cutting, preferably by a deep-drawing process. Each half shell 8a forms on the inside a hub 9a and on the outside a lateral surface 10a, on which in connection with the further lateral surface 10a of the adjacent half shell 8a, a traction means not shown in FIG. End sides radially outwardly directed ribs 12 of the half-shells 8a are used in the installed state for guiding the traction means. The lateral surface 10a extends radially spaced, concentric with the hub 9a and is connected via a central web 11. The design of the two half-shells 8a provides that they are arranged in mirror image, are supported in the installed state via the central web 11 against each other. To create a reliable attachment of the running disk 7a on the outer ring 6 of the rolling bearing 2, the hub 9a of both half-shells 8a are positively secured to the outer ring 6.
Einzelheiten der formschlüssigen Verbindung zwischen der Laufscheibe 7a und dem Außenring 6 verdeutlicht die Figur 2, die diese Details in einem größeren Maßstab darstellt. Die Naben 9a weisen übereinstimmend eine radial nach innen gerichtete Sicke 13 auf, die in korrespondierende Ausnehmungen 14 des Außenrings 6 eingreifen. Durch partiell umfangsverteilt symmetrisch angeordnete Ausnehmungen 14, die mit ebenfalls partiellen Sicken 13 der Nabe 9a zusammenwirken wird gleichzeitig eine wirksame Relativverdrehung zwischen der Laufscheibe 7a und dem Außenring 6 des Wälzlagers 4 erzielt. Alternativ zu der in Figur 2 abgebildeten gerundet gestalteten Sicke 13 bietet es sich an, eine Ringnut in die Nabe 9a einzuformen, die in eine korrespondierende, vorzugsweise als Umlaufnut gestaltete Ausnehmung 14 des Außenrings 6 eingreift. Jede Nabe 9a ist weiterhin endseitig mit einem radial nach innen gerichteten Bord 16 versehen, der gemäß Figur 1 unter Einhaltung eines Ringspaltes 15 bis an die Außenkontur bzw. an die Mantelfläche der Achse 3 geführt ist. Damit bewirken die Borde 16 eine Vordichtung für das Wälzlager 2.Details of the positive connection between the rotor 7a and the outer ring 6 illustrates the figure 2, which illustrates these details on a larger scale. The hubs 9a coincide with a radially inwardly directed bead 13, which engage in corresponding recesses 14 of the outer ring 6. By partially circumferentially distributed symmetrically arranged recesses 14, which also cooperate with partial beads 13 of the hub 9a, an effective relative rotation between the running disk 7a and the outer ring 6 of the rolling bearing 4 is achieved simultaneously. Alternatively to the In Figure 2 shown rounded shaped bead 13, it is advisable to mold an annular groove in the hub 9a, which engages in a corresponding, preferably designed as a circumferential groove recess 14 of the outer ring 6. Each hub 9a is further provided at the end with a radially inwardly directed board 16, which is guided in accordance with Figure 1 while maintaining an annular gap 15 to the outer contour or to the lateral surface of the axis 3. Thus, the shelves 16 cause a pre-seal for the rolling bearing. 2
Die Figur 3 zeigt die Riemenscheibe 1 b, deren Wälzlager 2 übereinstimmt mit dem in Figur 1 abgebildeten Wälzlager. Die Laufscheibe 7b umfasst die Halbschalen 8b, die vergleichbar der Laufscheibe 7b gemäß Figur 1 über die Naben 9b mittels Sicken 13 und Ausnehmungen 14 mit dem Außenring 6 des Wälzlagers 2 verbunden sind. Die Gestaltung der Mittelstege 11 der Halbschalen 8b sieht vor, dass diese ausschließlich außenseitig im Bereich der Mantelfläche 10b gegeneinander abgestützt sind. Die Mantelfläche 10b ist vollzylindrisch, d. h. ohne endseitig nach außen gerichtete Borde.3 shows the pulley 1 b, the rolling bearing 2 coincides with the rolling bearing shown in Figure 1. The running disk 7b comprises the half-shells 8b which are comparable to the running disk 7b according to FIG. 1 via the hubs 9b by means of beads 13 and recesses 14 connected to the outer ring 6 of the rolling bearing 2. The design of the central webs 11 of the half-shells 8b provides that they are supported on the outside only in the region of the lateral surface 10b against each other. The lateral surface 10b is fully cylindrical, d. H. without ends directed to the outside.
In Figur 4 ist die Laufscheibe 7c als Einzelteil abgebildet, bestehend aus zwei Halbschalen 8c, die außenseitig gemeinsam die von Borden 12 begrenzte Man- telfläche 10c bilden. Die Naben 9c weisen im Gegensatz zu den Halbschalen 8a gemäß Figur 1 endseitig keinen Bord 16 auf. Zur Schaffung einer ausreichenden kraftschlüssigen Abstützung der Nabe 9c an der Achse 3 im Einbauzustand, ist ein Winkel „α", der sich zwischen der Nabe 10 und dem Mittelsteg 11 einstellt, > 90° ausgebildet, zur Schaffung einer stets konstanten Abstützung der Nabe 9c an der Mantelfläche der Achse 3. BezugszahlenlisteFIG. 4 shows the running disk 7c as an individual part, consisting of two half-shells 8c, which together form the outer surface 10c delimited by ribs 12 on the outside. The hubs 9c, in contrast to the half-shells 8a according to FIG. 1, have no end 16 on the end. To create a sufficient frictional support of the hub 9c on the axle 3 in the installed state, an angle "α", which is established between the hub 10 and the central web 11,> 90 °, to create a constant support of the hub 9c the lateral surface of the axis. 3 LIST OF REFERENCE NUMBERS
1a Riemenscheibe1a pulley
1b Riemenscheibe1b Pulley
2 Wälzlager2 rolling bearings
3 Achse3 axis
4a Laufbahn4a career
4b Laufbahn4b career
5 Wälzkörper5 rolling elements
6 Außenring6 outer ring
7a Laufscheibe7a running disk
7b Laufscheibe7b running disk
7c Laufscheibe7c running disk
8a Halbschale8a half shell
8b Halbschale8b half shell
8c Halbschale8c half shell
9a Nabe9a hub
9b Nabe9b hub
9c Nabe9c hub
10a Mantelfläche10a lateral surface
10b Mantelfläche10b lateral surface
10c Mantelfläche10c lateral surface
11 Mittelsteg11 middle bridge
12 Bord12 board
13 Sicke13 beading
14 Ausnehmung14 recess
15 Ringspalt15 annular gap
16 Bord 16 board
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006010590.7 | 2006-03-06 | ||
| DE102006010590.7A DE102006010590B4 (en) | 2006-03-06 | 2006-03-06 | Pulley for a traction drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007101771A1 true WO2007101771A1 (en) | 2007-09-13 |
Family
ID=37946321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2007/051398 Ceased WO2007101771A1 (en) | 2006-03-06 | 2007-02-13 | Pulley for a traction mechanism drive |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102006010590B4 (en) |
| WO (1) | WO2007101771A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455326A (en) * | 2014-11-10 | 2015-03-25 | 南通福乐达汽车配件有限公司 | Thickening crankshaft vibration damper multi-wedge-pulley outer wheel and manufacturing method thereof |
| US11162571B2 (en) * | 2019-02-11 | 2021-11-02 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
| US11204088B2 (en) * | 2019-02-11 | 2021-12-21 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
| US11306808B2 (en) * | 2019-02-18 | 2022-04-19 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
| US11346436B2 (en) * | 2019-02-18 | 2022-05-31 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
| US11454310B2 (en) * | 2019-02-11 | 2022-09-27 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
| US11536351B2 (en) | 2019-02-18 | 2022-12-27 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007003978A1 (en) * | 2007-01-26 | 2008-07-31 | Bayerische Motoren Werke Aktiengesellschaft | Operating method for a vehicle steering system with an electric motor for auxiliary power assistance |
| DE102008016252A1 (en) | 2008-03-29 | 2009-10-01 | Schaeffler Kg | Transmission unit for torque-connection to traction mechanism of internal combustion engine in motor vehicle, has gear unit with adjusting device to adjust rotational speed and/or torque rates between connection and transmission elements |
| DE102008046541A1 (en) | 2008-09-10 | 2010-03-11 | Schaeffler Kg | Belt pulley for traction drive mechanism, has belt pulley body and flanged disks that are connected with one another in material-fit manner, where belt pulley body and/or flanged disks are made of fiber-reinforced, thermoplastic |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2669878A (en) * | 1950-10-10 | 1954-02-23 | Nelson Thomas Edward | Pulley construction |
| US3822457A (en) * | 1971-11-18 | 1974-07-09 | Frost & Son C L | Method of making rotatable member assembly |
| DE10012568A1 (en) * | 1999-03-26 | 2000-12-07 | Skf France | Process for manufacturing a roller with a bearing |
| DE102004006906A1 (en) * | 2004-02-12 | 2005-09-08 | Ina-Schaeffler Kg | Pulley for a traction drive |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1903776A (en) * | 1931-02-09 | 1933-04-18 | Formica Insulation Company | Method of securing a bearing within a pulley |
| AT138808B (en) * | 1933-07-03 | 1934-09-25 | Fritz Ing Rohrbeck | Disc wheel. |
| US3833278A (en) * | 1973-05-21 | 1974-09-03 | Gen Motors Corp | Anti-friction bearing idler assembly |
| GB2156036B (en) * | 1984-03-21 | 1987-07-08 | Ina Bearing Co | Tensioning pulley |
| US6502444B1 (en) * | 1996-08-05 | 2003-01-07 | Kabushiki Kaisha Kanemitsu | Method of forming a cylindrical portion of a sheet metal member having a center hole |
| FR2809791B1 (en) * | 2000-06-06 | 2002-08-23 | Skf France | BELT TENSIONER |
-
2006
- 2006-03-06 DE DE102006010590.7A patent/DE102006010590B4/en active Active
-
2007
- 2007-02-13 WO PCT/EP2007/051398 patent/WO2007101771A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2669878A (en) * | 1950-10-10 | 1954-02-23 | Nelson Thomas Edward | Pulley construction |
| US3822457A (en) * | 1971-11-18 | 1974-07-09 | Frost & Son C L | Method of making rotatable member assembly |
| DE10012568A1 (en) * | 1999-03-26 | 2000-12-07 | Skf France | Process for manufacturing a roller with a bearing |
| DE102004006906A1 (en) * | 2004-02-12 | 2005-09-08 | Ina-Schaeffler Kg | Pulley for a traction drive |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455326A (en) * | 2014-11-10 | 2015-03-25 | 南通福乐达汽车配件有限公司 | Thickening crankshaft vibration damper multi-wedge-pulley outer wheel and manufacturing method thereof |
| CN104455326B (en) * | 2014-11-10 | 2017-04-12 | 南通福乐达汽车配件有限公司 | Thickening crankshaft vibration damper multi-wedge-pulley outer wheel and manufacturing method thereof |
| US11162571B2 (en) * | 2019-02-11 | 2021-11-02 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
| US11204088B2 (en) * | 2019-02-11 | 2021-12-21 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
| US11454310B2 (en) * | 2019-02-11 | 2022-09-27 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
| US11306808B2 (en) * | 2019-02-18 | 2022-04-19 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
| US11346436B2 (en) * | 2019-02-18 | 2022-05-31 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
| US11536351B2 (en) | 2019-02-18 | 2022-12-27 | Aktiebolaget Skf | Pulley device, in particular for tensioning idler or runner roller |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006010590B4 (en) | 2017-02-09 |
| DE102006010590A1 (en) | 2007-09-13 |
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