DE29502168U1 - Swivel hub for clamping devices - Google Patents
Swivel hub for clamping devicesInfo
- Publication number
- DE29502168U1 DE29502168U1 DE29502168U DE29502168U DE29502168U1 DE 29502168 U1 DE29502168 U1 DE 29502168U1 DE 29502168 U DE29502168 U DE 29502168U DE 29502168 U DE29502168 U DE 29502168U DE 29502168 U1 DE29502168 U1 DE 29502168U1
- Authority
- DE
- Germany
- Prior art keywords
- hub
- seat surface
- bore
- swivel hub
- swivel
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/063—Fixing them on the shaft
-
- 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
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
- F16H7/1281—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
-
- 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
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/63—Gears with belts and pulleys
-
- 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
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0863—Finally actuated members, e.g. constructional details thereof
- F16H2007/0865—Pulleys
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Mounting Of Bearings Or Others (AREA)
Description
SKF GmbH .: ."· :":'": , :..·5··. Schweinfurt, O3.O2.I995SKF GmbH .: ."· :":'": , :..·5··. Schweinfurt, O3.O2.I995
/:&Lgr;.: ' :..:.:'.. " ··*···' DE95001 DE STP-ko.se/:&Lgr;. : ' : .. : .:'.. "··*···' DE95001 DE STP-ko.se
BeschreibungDescription
Schwenknabe für SpannvorrichtungenSwivel hub for clamping devices
Die Erfindung betrifft eine Schwenknabe nach dem Oberbegriff des Hauptanspruches.The invention relates to a pivoting hub according to the preamble of the main claim.
Schwenknaben dieser Art tragen eine drehbare Spannrolle und sind um einen Tragkörper über eine Spannfeder oder zwecks Einstellung um einen Befestigungsbolzen beweglich angeordnet.Swivel hubs of this type carry a rotating tension roller and are arranged so that they can move around a supporting body via a tension spring or, for adjustment, around a fastening bolt.
Beim Gegenstand des DE-GM 93 17 772 wurde bereits vorgeschlagen, eine Hülse aus Stahl auf die roh bearbeitete Sitzfläche eines aus Aluminium bestehenden Tragteils aufzupressen. Die Hülse wirkt dabei als Glatt- und Kalibrierwerkzeug, so daß ein präziser und zuverlässiger Sitz erreicht wird, obwohl die Sitzfläche nicht als solche bearbeitet ist. Da beim Aufpressen von Wälzlagern auf die Verformung des Innenringes geachtet werden muß, ist die bekannte Ausführung hierfür nicht ohne weiteres zu benutzen.In the subject matter of DE-GM 93 17 772, it was already proposed to press a steel sleeve onto the roughly machined seat surface of a supporting part made of aluminum. The sleeve acts as a smoothing and calibrating tool, so that a precise and reliable seat is achieved, even though the seat surface is not machined as such. Since attention must be paid to the deformation of the inner ring when pressing on rolling bearings, the known design cannot simply be used for this purpose.
Aufgabe der Erfindung ist es, eine Schwenknabe der eingangs genannten Art zu schaffen, die das Aufpressen eines Wälzlagers gestattet, ohne die Lagergeometrie zu beeinflussen.The object of the invention is to create a swivel hub of the type mentioned above, which allows a rolling bearing to be pressed on without affecting the bearing geometry.
Die Aufgabe wird durch das Kennzeichen des Hauptanspruches gelöst. Durch die verkürzte Sitzfläche wird das Wälzlager vorzugsweise an einem Ende der Bohrung durch eine Preßpassung befestigt. In diesem Bereich bildet die Schulter, beispielsweise eines Kugellagers, eine große Wandstärke und damit geringe Neigung zum Verformen. Die Sitzfläche der beispielsweise aus AluminumThe problem is solved by the feature of the main claim. Due to the shortened seat surface, the rolling bearing is preferably attached to one end of the bore by means of a press fit. In this area, the shoulder, for example of a ball bearing, forms a large wall thickness and thus a low tendency to deform. The seat surface of the bearing, for example made of aluminum
• -2- »·• -2- »·
bestehenden Schwenknabe kann im rohen Zustand wie beispielsweise nach dem Spritzgießen direkt verwendet werden. Das Wälzlager dient beim Aufpressen als Kalibrierwerkzeug und verdichtet mit seiner meist abgerundeten Kantenkürzung des Innenringes das Material an der Sitzfläche. Damit entsteht ein vollflächiger Preßsitz ohne auf Fertigungstoleranzen achten zu müssen. Im Bereich des anderen Bohrungsendes wird Material der Schwenknabe beispielsweise durch eine Ringverstemmung radial herausgeformt und stützt den Innenring in diesem Bereich. Auch hier kann es durch Fertigungstoleranzen nicht zu unvorhergesehenen Verformungen des Innenringes kommen, da der sitzfreie Raum der Schwenknabe genügend fließendes Material aufnehmen kann.The existing swivel hub can be used directly in its raw state, for example after injection molding. The roller bearing serves as a calibration tool when pressed on and compresses the material on the seat surface with its mostly rounded edge cut of the inner ring. This creates a full-surface press fit without having to pay attention to manufacturing tolerances. In the area of the other end of the bore, material from the swivel hub is formed radially, for example by means of ring caulking, and supports the inner ring in this area. Here too, manufacturing tolerances cannot lead to unforeseen deformations of the inner ring, since the seat-free space of the swivel hub can accommodate enough flowing material.
Die erfindungsgemäßen Merkmale werden nachfolgend an dem in der Zeichnung dargestellten Beispiel beschrieben.The features of the invention are described below using the example shown in the drawing.
Die einzige Figur zeigt eine Schwenknabe 1 mit aufgepreßtem Kugellager 2. Sie ist in Spritzgießtechnik aus Aluminium hergestellt und danach weitgehend unbearbeitet. Sie ist mit einem Anlageflansch 3 für das Kugellager 2 versehen, von dem aus sich eine Sitzfläche 4 bis in den Rillenbereich der Bohrungsfläche erstreckt. Das ist weniger als die Hälfte der Breite der Bohrungsfläche 5. Diese Sitzfläche 4 ist, was nicht aus der Zeichnung hervorgeht, geringfügig konisch ausgeführt mit dem größten Durchmesser in der Nähe des Anlageflansches 3. Dadurch verstärkt sich die Preßpassung mit fortschreitendem Aufpressen. Anschließend an die Sitzfläche 4 ist das Kugellager 2 zunächst nicht unterstützt und es ist ein Ringspalt 6 geringer radialer Ausdehnung vorgesehen. Durch ein nicht dargestelltes Werkzeug wird von der Stirnseite der Schwenknabe 1 aus Material in Form eines Vorsprunges 7 teils radial teils axial gegen die verrundete Kantenkürzung 8 des Innenringes 9 geformt und bildet damit eine radiale Befestigung in diesem Schulterbereich des Innenringes 9 und einen axialen Formschluß für das Kugellager 2. Überschüssiges Material des Vorsprunges 7 kann in den Ringspalt 6 ausweichen, so daß die Befestigungskraft an dieser Stelle von der plastischen Reaktionskraft des Materials gebildet wird und nicht von der Kraft des Verformungswerkzeuges.The only figure shows a swivel hub 1 with a pressed-on ball bearing 2. It is made from aluminum using injection molding technology and is then largely unprocessed. It is provided with a contact flange 3 for the ball bearing 2, from which a seat surface 4 extends into the groove area of the bore surface. This is less than half the width of the bore surface 5. This seat surface 4 is, although not apparent from the drawing, slightly conical with the largest diameter near the contact flange 3. As a result, the press fit becomes stronger as the pressing progresses. Following the seat surface 4, the ball bearing 2 is initially not supported and an annular gap 6 with a small radial expansion is provided. By means of a tool (not shown), material in the form of a projection 7 is formed from the front side of the swivel hub 1, partly radially and partly axially against the rounded edge cut 8 of the inner ring 9, thus forming a radial fastening in this shoulder area of the inner ring 9 and an axial positive connection for the ball bearing 2. Excess material of the projection 7 can escape into the annular gap 6, so that the fastening force at this point is formed by the plastic reaction force of the material and not by the force of the forming tool.
In der Schwenknabe ist eine Bohrung 11 vorgesehen und als Gleitfläche 10 bearbeitet um auf einen Tragkörper schwenkbar beweglich zu wirken.A bore 11 is provided in the swivel hub and is machined as a sliding surface 10 in order to act in a pivoting manner on a support body.
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29502168U DE29502168U1 (en) | 1995-02-10 | 1995-02-10 | Swivel hub for clamping devices |
FR9601344A FR2730538A1 (en) | 1995-02-10 | 1996-02-05 | Pivoting hub for belt tensioning pulley |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29502168U DE29502168U1 (en) | 1995-02-10 | 1995-02-10 | Swivel hub for clamping devices |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29502168U1 true DE29502168U1 (en) | 1995-03-23 |
Family
ID=8003711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29502168U Expired - Lifetime DE29502168U1 (en) | 1995-02-10 | 1995-02-10 | Swivel hub for clamping devices |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE29502168U1 (en) |
FR (1) | FR2730538A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004025738A1 (en) * | 2004-05-26 | 2006-01-05 | Ina-Schaeffler Kg | Connection arrangement between caster and clamping fixture used in drive system of motor vehicle, has bearing journal formed in conical tapered shape, ensuring positive connection between antifriction bearing and bearing journal |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19755091A1 (en) * | 1997-12-11 | 1999-06-17 | Bosch Gmbh Robert | Shaft-hub connection and method for producing one |
FR2790803B1 (en) * | 1999-03-12 | 2001-06-08 | Crouzet Automatismes | DEVICE FOR RECEIVING A RING FROM A BEARING |
FR2989606B1 (en) * | 2012-04-23 | 2015-03-06 | Skf Ab | METHOD OF MOUNTING A ROTARY DEVICE, ROTARY DEVICE MOUNTED USING THE SAME, AND SYSTEM INCLUDING SUCH A DEVICE |
FR3049671B1 (en) * | 2016-04-04 | 2018-09-21 | Valeo Embrayages | TORQUE TRANSMISSION DEVICE ASSEMBLY, TORQUE TRANSMISSION DEVICE, AND METHODS OF MOUNTING |
DE102020107580A1 (en) * | 2020-03-19 | 2021-09-23 | Nidec Motors & Actuators (Germany) Gmbh | Assembly with a shaft and a radial ball bearing |
-
1995
- 1995-02-10 DE DE29502168U patent/DE29502168U1/en not_active Expired - Lifetime
-
1996
- 1996-02-05 FR FR9601344A patent/FR2730538A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004025738A1 (en) * | 2004-05-26 | 2006-01-05 | Ina-Schaeffler Kg | Connection arrangement between caster and clamping fixture used in drive system of motor vehicle, has bearing journal formed in conical tapered shape, ensuring positive connection between antifriction bearing and bearing journal |
Also Published As
Publication number | Publication date |
---|---|
FR2730538A1 (en) | 1996-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 19950504 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 19980205 |
|
R157 | Lapse of ip right after 6 years |
Effective date: 20011201 |