WO1997001717A1 - Spanneinrichtung für zugmittel wie riemen und ketten - Google Patents
Spanneinrichtung für zugmittel wie riemen und ketten Download PDFInfo
- Publication number
- WO1997001717A1 WO1997001717A1 PCT/EP1996/001050 EP9601050W WO9701717A1 WO 1997001717 A1 WO1997001717 A1 WO 1997001717A1 EP 9601050 W EP9601050 W EP 9601050W WO 9701717 A1 WO9701717 A1 WO 9701717A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- axial
- bearing eye
- bearing
- end faces
- tensioning
- Prior art date
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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
-
- 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
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
-
- 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and 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
- 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
- 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
- F16H2007/0802—Actuators for final output members
- F16H2007/0806—Compression coil springs
-
- 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
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0893—Circular path
Definitions
- Tensioning device for traction devices such as belts and chains
- the present invention relates to a tensioning device for traction means such as belts and chains, in particular for belt drives of motor vehicles, with a tensioning means, in particular tensioning roller for the tensioning lever having the traction means, the bearing eye of which is pivotally mounted on an axis provided on the engine block with the interposition of a radial bearing, the bearing eye axial stops are provided on the two end faces thereof, and with a tension spring element acting on the one hand on the tensioning lever and on the other hand on the engine block.
- Such a tensioning device is known for example from DE-C 38 09 169.
- a machine screw passed through the bearing eye engages in a threaded bore formed on the engine block, the axial stops being formed by the engine block on the one hand and the screw head on the other.
- the tensioning lever has a certain amount of axial play in the area of the bearing eye. In this case, axial oscillation movements of the tensioning lever can occur as a result of acceleration or deceleration of the motor, which cause an annoying rattling noise because the bearing eye strikes the motor block or the screw head.
- the object of the present invention is to prevent this rattling noise using simple means. According to the invention, this object is achieved in that on the two axial
- Ends of the bearing eye sealing rings are provided, which seal the end of the radial bearing and which project axially beyond the end faces of the bearing eye, the axial distance between the axial stops being greater than the axial distance from the end faces of the bearing eye facing the stops.
- one of the two sealing rings abuts its associated axial stop when the tensioning lever moves axially, rattling noises being avoided because the sealing rings are made of a soft, possibly rubber-elastic material.
- the radial bearing is reliably sealed using these sealing rings.
- the axis can be formed, for example, by a sleeve, on the end faces of which a radial shoulder is formed, a disk radially overlapping the bearing eye being arranged on each shoulder.
- the disks form the axial stops, which can be clamped between the sleeve and the engine block on the one hand and a clamping head on the other.
- the washers do not have to be attached to the sleeve.
- the clamping head can, for example, be a screw head of a machine screw which engages in a threaded hole in the engine block.
- the sealing rings can be accommodated in the bearing eye, for example, in that an annular groove is provided for one of the sealing rings at each of the two axial ends of the bearing eye, the axial depth of each ring groove being smaller than the axial extent of the sealing ring. This ensures that the end faces of the bearing eye do not come into contact with the disks as a result of the axial movements of the tensioning lever.
- the invention is particularly suitable for tensioning devices whose tension spring works linearly.
- FIG. 1 shows a view of the tensioning device according to the invention
- FIG. 2 shows a cross section through the tensioning device according to the invention from FIG. 1 and
- FIG. 3 shows an enlargement of the bearing eye from FIG. 2.
- the tensioning device has a linearly acting tensioning spring element 1, a tensioning lever 2, and a tensioning roller 3.
- the tensioner is on the one hand pivotally attached to an engine block 4 and on the other hand releasably attached to the tensioning lever 2.
- the tensioning roller 3 is rotatably attached to the tensioning spring element 1.
- the tension lever 2 is - as can be seen better in Figure 2 - also releasably attached to the engine block 4.
- a bearing eye 5 of the tensioning lever 2 is rotatably mounted on a sleeve-shaped axis 6.
- a radial shoulder 7, on each of which a disk 8 is arranged, is formed on both end faces of the axis 6.
- Each of the two disks 8 overlaps the bearing eye 5 in the radial direction. Both disks 8 are clamped between the radial shoulders 7 and the engine block 4 on the one hand and a screw head 9 of a machine screw 10 fastened to the engine block 4 on the other hand.
- the bearing eye 5 has at its two axial ends an annular groove 1 1, in which a sealing ring 12 is inserted.
- the axial depth of the ring grooves 11 is smaller than the axial extent of the sealing ring 12, with both sealing rings 12 projecting axially beyond the bearing eye 5.
- the distance from the end faces of the bearing eye 5 facing the disks 8 is also smaller than the axial distance between the two end faces of the disks 8.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19680487D DE19680487D2 (de) | 1995-06-29 | 1996-03-12 | Spanneinrichtung für Zugmittel wie Riemen und Ketten |
DE19680487A DE19680487C1 (de) | 1995-06-29 | 1996-03-12 | Spanneinrichtung für Zugmittel wie Riemen und Ketten |
US08/973,978 US6039664A (en) | 1995-06-29 | 1996-03-12 | Tensioning device for traction systems such as belts and chains |
JP50411197A JP3202242B2 (ja) | 1995-06-29 | 1996-03-12 | ベルト、チェーンのような引張手段のための張設装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19523647A DE19523647A1 (de) | 1995-06-29 | 1995-06-29 | Spanneinrichtung für Zugmittel wie Riemen und Ketten |
DE19523647.5 | 1995-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997001717A1 true WO1997001717A1 (de) | 1997-01-16 |
Family
ID=7765549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/001050 WO1997001717A1 (de) | 1995-06-29 | 1996-03-12 | Spanneinrichtung für zugmittel wie riemen und ketten |
Country Status (4)
Country | Link |
---|---|
US (1) | US6039664A (de) |
JP (1) | JP3202242B2 (de) |
DE (4) | DE29520940U1 (de) |
WO (1) | WO1997001717A1 (de) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19919567A1 (de) * | 1999-04-29 | 2000-11-02 | Schaeffler Waelzlager Ohg | Spanneinrichtung für Zugmittel |
DE19940963A1 (de) * | 1999-08-28 | 2001-03-01 | Bayerische Motoren Werke Ag | Spannvorrichtung für einen Hülltrieb, insbesondere Riementrieb für Nebenaggregate an Brennkraftmaschinen |
US6450907B1 (en) * | 2001-03-12 | 2002-09-17 | The Gates Corporation | Inner race idler pulley tensioner |
US6579199B2 (en) | 2001-08-31 | 2003-06-17 | The Gates Corporation | Linear tensioner |
US7186196B2 (en) * | 2002-07-18 | 2007-03-06 | Dayco Products, Llc | Belt tensioner with integral damping |
CA2499068A1 (en) * | 2002-09-20 | 2004-04-01 | The Gates Corporation | Belt tensioner |
WO2004027289A1 (en) * | 2002-09-20 | 2004-04-01 | The Gates Corporation | Belt tensioner |
FR2853030B1 (fr) * | 2003-03-31 | 2006-04-28 | Renault Sa | Tendeur de courroie d'entrainement |
TWI283219B (en) * | 2004-02-10 | 2007-07-01 | Honda Motor Co Ltd | Chain tension structure |
DE102004048284A1 (de) * | 2004-10-05 | 2006-04-20 | Ina-Schaeffler Kg | Vorrichtung zum Befestigen und Spannen eines in einem Riementrieb einsetzbaren Aggregats |
DE102004061097A1 (de) * | 2004-12-18 | 2006-06-22 | Schaeffler Kg | Endprofilierung an Gleitlagergegenlaufpartnern zur Reduzierung der Flächenpressung |
DE102005031593A1 (de) * | 2005-07-06 | 2007-01-11 | Schaeffler Kg | Abdichtung für das Lagerauge eines Spannsystems |
DE102005046107A1 (de) * | 2005-09-27 | 2007-03-29 | Schaeffler Kg | Spannvorrichtung zum Spannen von Zugmitteln |
DE102005059582A1 (de) * | 2005-12-14 | 2007-06-21 | Schaeffler Kg | Spanneinheit für einen Zahnriemen-,Riemen- oder Kettentrieb |
DE102007010713A1 (de) * | 2007-03-06 | 2008-09-11 | Schaeffler Kg | Spannvorrichtung für einen Zugmitteltrieb |
DE102008021037A1 (de) | 2008-04-26 | 2009-10-29 | Schaeffler Kg | Hebellagerung mit eingespritztem Gleitlager |
DE102008026585A1 (de) | 2008-06-03 | 2009-01-22 | Daimler Ag | Schwenklager sowie Dichtungsmontageelement zur Abdichtung eines Schwenklagers |
DE102010027613A1 (de) | 2010-07-19 | 2012-01-19 | Schaeffler Technologies Gmbh & Co. Kg | Optimiertes Gleitlagerdesign für eine Hebellagerung |
DE102011075898A1 (de) | 2011-05-16 | 2012-11-22 | Schaeffler Technologies AG & Co. KG | Spannvorrichtung für einen Zugmitteltrieb eines Verbrennungsmotors |
US9790817B2 (en) | 2012-10-22 | 2017-10-17 | Litens Automotive Partnership | Tensioner with increased damping |
CN104736891B (zh) * | 2012-10-25 | 2017-12-01 | Ntn株式会社 | 带轮臂的支点轴承装置 |
WO2015035508A1 (en) * | 2013-09-11 | 2015-03-19 | Litens Automotive Partnership | Tensioner with increased damping and arm on base cup configuration |
DE102015211867A1 (de) * | 2015-06-25 | 2016-12-29 | Volkswagen Aktiengesellschaft | Anordnung eines drehbar gelagerten Elements an einem Gehäuse |
CN105983465A (zh) * | 2016-02-19 | 2016-10-05 | 中建材(合肥)粉体科技装备有限公司 | 一种辊压机轴承座限位装置 |
US10066708B2 (en) * | 2016-08-04 | 2018-09-04 | Ford Global Technologies, Llc | External spring to increase tension on belt tensioner for internal combustion engine |
FR3078759B1 (fr) * | 2018-03-06 | 2020-02-28 | Aktiebolaget Skf | Dispositif de poulie pour galet tendeur ou enrouleur |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3809169A1 (de) * | 1987-03-23 | 1988-10-13 | Fuji Heavy Ind Ltd | Automatische riemenspanneinrichtung |
US4832665A (en) * | 1986-12-27 | 1989-05-23 | Koyo Seiko Co., Ltd. | Tensioner |
US4925437A (en) * | 1988-03-17 | 1990-05-15 | Yamaha Hatsudoki Kabushiki Kaisha | Belt tensioner device for lawn mower |
DE4336467A1 (de) * | 1992-11-20 | 1994-05-26 | Schaeffler Waelzlager Kg | Riemenspanneinrichtung mit einem gegenüber einem Reibelement abgedichteten Radiallager |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB528175A (en) * | 1938-02-11 | 1940-10-24 | Bolinder Munktell | Improvements in sealing devices for crank pin bearings |
US4144772A (en) * | 1977-07-29 | 1979-03-20 | The Toro Company | Belt idler construction |
US4401198A (en) * | 1981-03-30 | 1983-08-30 | Kunczynski Jan K | Friction-based, motion damping assembly for a chairlift or the like |
US4601683A (en) * | 1982-06-25 | 1986-07-22 | Dayco Corporation | Belt tensioner, part therefor and methods of making the same |
US4721495A (en) * | 1985-09-01 | 1988-01-26 | Nippon Seiko Kabushiki Kaisha | Autotensioner |
JPH0452173Y2 (de) * | 1986-08-04 | 1992-12-08 | ||
US4923435A (en) * | 1986-12-27 | 1990-05-08 | Koyo Seiko Co., Ltd. | Chain or belt tensioner with a one-way clutch |
FR2609139B1 (fr) * | 1986-12-27 | 1994-02-11 | Koyo Seiko Co Ltd | Dispositif de tension, notamment pour courroies de distribution de vehicules automobiles |
JP2893263B2 (ja) * | 1988-04-01 | 1999-05-17 | 三菱自動車工業株式会社 | オートテンシヨナ |
DE4124636C2 (de) * | 1991-07-25 | 1997-04-17 | Schaeffler Waelzlager Kg | Riemenspannvorrichtung |
DE4208840A1 (de) * | 1992-03-19 | 1993-09-23 | Schaeffler Waelzlager Kg | Spannvorrichtung fuer einen treibriemen |
US5352160A (en) * | 1992-09-03 | 1994-10-04 | Nsk Ltd. | Auto tensioner |
-
1995
- 1995-06-29 DE DE29520940U patent/DE29520940U1/de not_active Expired - Lifetime
- 1995-06-29 DE DE19523647A patent/DE19523647A1/de not_active Withdrawn
-
1996
- 1996-03-12 WO PCT/EP1996/001050 patent/WO1997001717A1/de active Application Filing
- 1996-03-12 JP JP50411197A patent/JP3202242B2/ja not_active Expired - Fee Related
- 1996-03-12 DE DE19680487A patent/DE19680487C1/de not_active Expired - Fee Related
- 1996-03-12 US US08/973,978 patent/US6039664A/en not_active Expired - Fee Related
- 1996-03-12 DE DE19680487D patent/DE19680487D2/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4832665A (en) * | 1986-12-27 | 1989-05-23 | Koyo Seiko Co., Ltd. | Tensioner |
DE3809169A1 (de) * | 1987-03-23 | 1988-10-13 | Fuji Heavy Ind Ltd | Automatische riemenspanneinrichtung |
US4925437A (en) * | 1988-03-17 | 1990-05-15 | Yamaha Hatsudoki Kabushiki Kaisha | Belt tensioner device for lawn mower |
DE4336467A1 (de) * | 1992-11-20 | 1994-05-26 | Schaeffler Waelzlager Kg | Riemenspanneinrichtung mit einem gegenüber einem Reibelement abgedichteten Radiallager |
Also Published As
Publication number | Publication date |
---|---|
DE19680487C1 (de) | 1998-10-22 |
JPH11508668A (ja) | 1999-07-27 |
DE29520940U1 (de) | 1996-05-30 |
JP3202242B2 (ja) | 2001-08-27 |
US6039664A (en) | 2000-03-21 |
DE19523647A1 (de) | 1997-01-02 |
DE19680487D2 (de) | 1998-03-19 |
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