DE4431801A1 - Belt, chain etc tensioner with direction dependent damping - Google Patents
Belt, chain etc tensioner with direction dependent dampingInfo
- Publication number
- DE4431801A1 DE4431801A1 DE19944431801 DE4431801A DE4431801A1 DE 4431801 A1 DE4431801 A1 DE 4431801A1 DE 19944431801 DE19944431801 DE 19944431801 DE 4431801 A DE4431801 A DE 4431801A DE 4431801 A1 DE4431801 A1 DE 4431801A1
- Authority
- DE
- Germany
- Prior art keywords
- arm
- tensioning
- housing
- ramps
- clamping
- 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.)
- Withdrawn
Links
- 238000013016 damping Methods 0.000 title description 3
- 230000001419 dependent effect Effects 0.000 title description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 206010016256 fatigue Diseases 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 208000013201 Stress fracture Diseases 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000149 penetrating effect Effects 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
- 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
- F16H7/1209—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means
- F16H7/1218—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means of the dry friction type
-
- 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
- F16H2007/081—Torsion 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
- F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
- F16H2007/084—Means for varying tension of belts, ropes, or chains with vibration damping means having vibration damping characteristics dependent on the moving direction of the tensioner
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
Die vorliegende Erfindung betrifft eine Spanneinrichtung für Zugmittel wie Riemen und Ketten, bestehend aus einem um eine Achse drehbar gelagerten und mittels einer Spannfeder gegen das Zugmittel angefeder ten Spannarm, an dem Spannmittel insbesondere eine Spannrolle vor gesehen sind, wobei wenigstens ein Reibelement zwischen zwei Radial flanschen vorgesehen ist, von denen der eine spannarmfest, und von denen der andere gehäusefest ausgebildet ist, wobei das Reibelement in Abhängigkeit von der Schwenkrichtung des Spannarms seine axiale Bauhöhe und damit den Einspanndruck zwischen den Radialflanschen verändert.The present invention relates to a tensioning device for traction means like straps and chains, consisting of a swivel around an axis stored and spring-loaded against the traction means by means of a tension spring ten tensioning arm, in particular a tensioning roller on the tensioning means are seen, at least one friction element between two radial flanges is provided, one of which is tension arm resistant, and of which the other is fixed to the housing, the friction element in Depending on the swivel direction of the clamping arm its axial Height and thus the clamping pressure between the radial flanges changed.
Eine derartige Spanneinrichtung ist beispielsweise aus der DE-A-37 04 521 bekannt. Die hier vorgesehenen Reibelemente werden während des Betriebs einer dynamischen Biegebeanspruchung unterworfen, wodurch immerhin die Gefahr von Ermüdungsbrüchen gegeben ist. Aufgabe der vorliegenden Erfindung ist es daher, eine Spanneinrichtung gemäß dem Oberbegriff derart weiterzubilden, daß Ermüdungsbrüche sicher ver mieden werden.Such a clamping device is for example from the DE-A-37 04 521 known. The friction elements provided here will subject to dynamic bending stress during operation, whereby there is at least the risk of fatigue fractures. task the present invention is therefore a tensioning device according to to further develop the generic term in such a way that fatigue breaks ver ver be avoided.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß der eine Flansch stirnseitig mit in Umfangsrichtung aufeinander folgenden und keilförmig ausgebildeten Rampen versehen ist, und daß eine zwischen den Radialflanschen angeordnete und gegenüber diesen beiden Radial flanschen drehbare Reibscheibe mit zu den Rampen parallelen und damit zusammenwirkenden Gegenrampen versehen ist. Unter einer Relativdrehung der Rampen zueinander wird in Folge der Keilwirkung der Einspanndruck zwischen den Radialflanschen erhöht, wobei richtungsabhängig Spannarm bewegungen gedämpft sind. Bei der erfindungsgemäßen Spanneinrichtung werden keine Teile auf dynamische Biegebelastung hin beansprucht, so daß sichergestellt ist, daß keine Ermüdungsbrüche auftreten.According to the invention this object is achieved in that one Front flange with successive and in the circumferential direction is provided wedge-shaped ramps, and that one between the radial flanges and opposite these two radial flanges rotatable friction disc with parallel to the ramps and thus interacting counter ramps is provided. Under a relative rotation the ramps to each other becomes the clamping pressure due to the wedge effect between the radial flanges increased, depending on the direction of the tension arm movements are dampened. In the tensioning device according to the invention no parts are subjected to dynamic bending loads, so that it is ensured that no fatigue breaks occur.
Gemäß Anspruch 2 ist es zweckmäßig, daß eine zu der Achse konzentrisch angeordnete Drehstabfeder an ihrem einen Ende mit dem Spannarm und an ihrem anderen Ende mit dem spannarmfesten Radialflansch fest verbunden ist. Auf diese Art und Weise ist sichergestellt, daß hohe Dämpfungen nicht schlagartig auf den Spannarm, sondern unter Zwischenschaltung der Drehstabfeder abgefedert übertragen werden.According to claim 2, it is appropriate that one concentric to the axis arranged torsion bar at one end with the tension arm and the other end is firmly connected to the radial flange which is fixed to the clamping arm is. This ensures that high damping not suddenly on the tension arm, but with interposition the torsion bar spring are transmitted.
Gemäß Anspruch 3 ist es zweckmäßig, daß eine die Spannfeder bildende, zur Achse konzentrisch angeordnete Schraubendrehfeder mit ihrem einen Ende an dem Spannarm und mit ihrem anderen Ende an dem gehäusefesten Radialflansch befestigt ist.According to claim 3, it is expedient that a tension spring forming Coil torsion spring arranged concentrically to the axis with its one End on the tension arm and with its other end on the housing-fixed Radial flange is attached.
Nachstehend wird die Erfindung anhand eines in insgesamt zwei Figuren dargestellten erfindungsgemäßen Ausführungsbeispiels näher erläutert. Es zeigen:The invention is described below with reference to one in two figures illustrated embodiment of the invention explained in more detail. Show it:
Fig. 1 einen Längsschnitt durch eine erfindungsgemäße durch die Spanneinrichtung aus Fig. 1 Spanneinrichtung und Fig. 1 shows a longitudinal section through an inventive through the tensioning device of FIG. 1 clamping device and
Fig. 2 in gebrochener Darstellung einen Querschnitt durch die Spanneinrichtung aus Fig. 1 entlang der Linie II-II. Fig. 2 in broken representation a cross section through the clamping device of Fig. 1 along the line II-II.
Die in der Fig. 1 dargestellte Riemenspanneinrichtung besteht aus einem Spannarm 1, der auf ein Ende einer Drehstabfeder 2 mit kreis ringförmigem Querschnitt aufgesteckt ist, wobei die Drehstabfeder 2 mittels Gleitlagerungen 3 in einer Gehäusebohrung 4 eines Gehäuses 5 schwenkbar gelagert ist. An seinem Ende weist der Spannarm 1 eine drehbar gelagerte Spannrolle 6 zur Anlage an einen nicht dargestellten Riemen auf. Eine Schraubendrehfeder 7 ist einerseits an dem Gehäuse 5 und andererseits an dem Spannarm 1 abgestützt. An seinem von dem Spannarm 1 abgewandten Ende weist die Drehstabfeder 2 einen aufge steckten Radialflansch 8 auf, zwischen dem und einem axial benach barten Gehäuseflansch 9 eine Reibscheibe 10 angeordnet ist. In einem von der Reibscheibe 10 begrenzten Ringraum ist zwischen dem Radial flansch 8 und dem Gehäuse 5 eine Dichtung 11 angeordnet. Eine weitere Dichtung 12 ist zwischen einem stirnseitigen Ende des Gehäuses 5 und dem Spannarm 1 angeordnet. Die Dichtungen 11, 12 verhindern das Ein dringen von Verunreinigungen in die Gehäusebohrung 4 bzw. in die Gleitlager 3.The belt tensioning device shown in FIG. 1 consists of a tension arm 1 , which is attached to one end of a torsion bar spring 2 with a circular annular cross section, the torsion bar spring 2 being pivotably mounted in a housing bore 4 of a housing 5 by means of slide bearings 3 . At its end, the tensioning arm 1 has a rotatably mounted tensioning roller 6 for abutment on a belt, not shown. A helical torsion spring 7 is supported on the one hand on the housing 5 and on the other hand on the tension arm 1 . At its end facing away from the tensioning arm 1 , the torsion bar spring 2 has an inserted radial flange 8 , between which and an axially adjacent housing flange 9, a friction disk 10 is arranged. In an annular space delimited by the friction disk 10 , a seal 11 is arranged between the radial flange 8 and the housing 5 . Another seal 12 is arranged between an end face of the housing 5 and the clamping arm 1 . The seals 11 , 12 prevent impurities from penetrating into the housing bore 4 or into the slide bearing 3 .
Fig. 2 zeigt in gebrochener Darstellung den spannarmfesten Radial flansch 8, die Reibscheibe 10 und den Gehäuseflansch 9. An ihren einander zugewandten Stirnseiten sind sowohl die Reibscheibe 10 als auch der Gehäuseflansch 9 mit Rampen 13, 14 versehen. Aus dieser Figur ist ersichtlich, daß die Rampen in Umfangsrichtung keilförmig ausge bildet sind. Bei Relativdrehung der Reibscheibe 10 und des Gehäuse flansches 9 zueinander werden die Rampen 13, 14 in Folge von Keilwir kung gegeneinander gedrückt, wobei die Reibscheibe 10 zunehmend zwi schen den Radialflansch 8 und den Gehäuseflansch 9 eingespannt wird. Die zwischen dem Radialflansch 8 und der Reibscheibe 10 auftretende Gleitreibung variiert in Folge des veränderlichen Einspanndrucks der Reibscheibe 10. Bei Relativdrehung des Radialflansches 8 gegenüber dem Gehäuseflansch 9 in der anderen Richtung werden die Rampen 13, 14 unter Entlastung der Reibscheibe 10 zueinander verschoben. Auf diese Weise ist eine richtungsabhängige Dämpfung geschaffen, wobei die dazu erforderlichen Bauteile keiner dynamischen Biegebeanspruchung ausge setzt sind. Fig. 2 shows the broken arm fixed radial flange 8 , the friction plate 10 and the housing flange 9 . On their mutually facing end faces, both the friction disk 10 and the housing flange 9 are provided with ramps 13 , 14 . From this figure it can be seen that the ramps are wedge-shaped in the circumferential direction. With relative rotation of the friction disc 10 and the housing flange 9 to each other, the ramps 13 , 14 are pressed against each other as a result of the wedge effect, the friction disc 10 being increasingly clamped between the radial flange 8 and the housing flange 9 . The sliding friction occurring between the radial flange 8 and the friction disk 10 varies as a result of the variable clamping pressure of the friction disk 10 . When the radial flange 8 rotates relative to the housing flange 9 in the other direction, the ramps 13 , 14 are displaced relative to one another, relieving the friction disk 10 . In this way, a direction-dependent damping is created, the components required for this are not subject to dynamic bending stress.
Zwischen den Spannarm 1 und das Gehäuse 5 ist eine Scheibe 15 einge fügt, die dann axial belastet wird, wenn der Spannarm 1 infolge der oben beschriebenen Keilwirkung axial gegen das Gehäuse 5 gedrückt wird; der Spannarm 1 wirkt dann wie ein Widerlager.Between the clamping arm 1 and the housing 5 , a disc 15 is inserted, which is then axially loaded when the clamping arm 1 is pressed axially against the housing 5 due to the wedge effect described above; the tension arm 1 then acts as an abutment.
Bei kleinen Auslenkungen des Spannarms 1 infolge von Spannungsschwan kungen des Riemens wird die Drehstabfeder 2 mit einem Drehmoment beaufschlagt und verdreht. Dieses von der Steifigkeit der Drehstab feder 2 abhängige Drehmoment ist bei kleinen Auslenkungen des Spann arms 1 kleiner als das Haftreibmoment, das zwischen dem Radialflansch 8 und dem Gehäuse 5 mittels der Reibscheibe 10 übertragen wird. Erst bei größeren Auslenkungen des Spannarms 1 wird das Haftreibmoment überschritten, so daß der Radialflansch 8 gegenüber dem Gehäuse 5 in Schwenkrichtung des Spannarms 1 verdreht wird. Nach Abklingen der die hohe Auslenkung bewirkenden Spannungserhöhung sinkt das in der Dreh stabfeder 2 wirksame Drehmoment auf ein Niveau unterhalb des Gleit reibmomentes, das mittels der Reibscheibe 10 von dem Radialflansch 8 auf das Gehäuse 5 übertragen wird. In dieser Situation findet keine weitere Bewegung des Radialflansches 8 gegenüber dem Gehäuse 5 statt.In the event of small deflections of the tension arm 1 as a result of tension fluctuations in the belt, the torsion bar spring 2 is acted upon and twisted. This on the rigidity of the torsion bar spring 2 dependent torque is smaller than the static friction torque with small deflections of the clamping arm 1 , which is transmitted between the radial flange 8 and the housing 5 by means of the friction disc 10 . The static frictional torque is only exceeded when the tensioning arm 1 is deflected so that the radial flange 8 is rotated relative to the housing 5 in the pivoting direction of the tensioning arm 1 . After the high deflection causing voltage increase has subsided, the effective torque in the torsion bar spring 2 drops to a level below the sliding friction torque, which is transmitted by means of the friction disk 10 from the radial flange 8 to the housing 5 . In this situation there is no further movement of the radial flange 8 relative to the housing 5 .
Die Schraubendrehfeder 7 ist axial vorgespannt, wobei die axiale Stützkraft über den Spannarm 1 auf die Drehstabfeder 2, von dort auf den Radialflansch 8 über die Reibscheibe 10 in das Gehäuse 5 eingelei tet wird.The helical torsion spring 7 is axially preloaded, the axial supporting force via the tension arm 1 onto the torsion bar spring 2 , from there onto the radial flange 8 via the friction disk 10 into the housing 5 .
BezugszeichenlisteReference list
1 Spannarm
2 Drehstabfeder
3 Gleitlager
4 Gehäusebohrung
5 Gehäuse
6 Spannrolle
7 Schraubendrehfeder
8 Radialflansch
9 Gehäuseflansch
10 Reibscheibe
11 Dichtung
12 Dichtung
13 Rampen
14 Rampen
15 Scheibe 1 tension arm
2 torsion bar spring
3 plain bearings
4 housing bore
5 housing
6 tension pulley
7 helical torsion spring
8 radial flange
9 housing flange
10 friction disc
11 seal
12 seal
13 ramps
14 ramps
15 disc
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944431801 DE4431801A1 (en) | 1994-09-07 | 1994-09-07 | Belt, chain etc tensioner with direction dependent damping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944431801 DE4431801A1 (en) | 1994-09-07 | 1994-09-07 | Belt, chain etc tensioner with direction dependent damping |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4431801A1 true DE4431801A1 (en) | 1996-03-14 |
Family
ID=6527593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19944431801 Withdrawn DE4431801A1 (en) | 1994-09-07 | 1994-09-07 | Belt, chain etc tensioner with direction dependent damping |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4431801A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002038983A1 (en) | 2000-11-09 | 2002-05-16 | Ina-Schaeffler Kg | Friction disk tensioning device |
GB2374394A (en) * | 2001-04-13 | 2002-10-16 | Unitta Co Ltd | Thin autotensioner |
DE10248352A1 (en) * | 2002-10-17 | 2004-04-29 | Ina-Schaeffler Kg | Clamping device for a traction mechanism drive |
WO2004042253A1 (en) | 2002-11-07 | 2004-05-21 | Ina-Schaeffler Kg | Springing and dampening device |
FR2856767A1 (en) * | 2003-06-26 | 2004-12-31 | Ina Schaeffler Kg | Tightener for traction unit e.g. strap, has swiveling lever with torsion bars, where each bar has one end rotatably connected to lever and another free end rotatably penetrating in machine part |
EP1596098A1 (en) * | 2004-05-14 | 2005-11-16 | Dayco Europe S.r.l. con Unico Socio | Vehicle belt drive torsion bar tensioner with an improved damping device |
WO2006048112A1 (en) | 2004-11-04 | 2006-05-11 | Schaeffler Kg | Tensioning device for a flexible drive with directional damping |
DE102005033017A1 (en) * | 2005-07-15 | 2007-01-25 | Schaeffler Kg | Tensioning device for a traction mechanism comprises a sealing element arranged between a blocking surface of a friction plate and a contact surface of a tensioning lever to seal the annular gap |
DE102005053131A1 (en) * | 2005-11-08 | 2007-05-16 | Schaeffler Kg | Tensioning device for drawing means, has stationary base part and tensioning lever which is movably arranged, relative to base part and coil spring which can be tightened against tensioning lever |
WO2009003828A1 (en) * | 2007-07-05 | 2009-01-08 | Schaeffer Kg | Tensioning device for traction mechanism drives |
US7850561B2 (en) | 2006-11-27 | 2010-12-14 | Schaeffler Technologies Gmbh & Co. Kg | Tensioning device for a traction element drive with an improved axial-bearing arrangement |
CN110630705A (en) * | 2018-06-22 | 2019-12-31 | 上海贝序汽车科技有限公司 | Belt tensioning wheel mechanism of automobile engine |
CN111503231A (en) * | 2019-01-30 | 2020-08-07 | 上海贝序汽车科技有限公司 | Belt tensioning wheel mechanism of automobile engine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3104201C2 (en) * | 1979-11-05 | 1982-12-23 | Dyneer Corp., 06880 Westport, Conn. | Belt tensioning device |
DE3824645A1 (en) * | 1988-07-20 | 1990-01-25 | Schaeffler Waelzlager Kg | CLAMPING DEVICE |
DE3912944A1 (en) * | 1989-03-15 | 1990-09-20 | Muhr & Bender | Tensioning device for vehicle drive belts - consists of hexagonal sectioned torsion bar, with lever and roller or disc |
DE4001689C1 (en) * | 1990-01-22 | 1991-09-05 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Tensioner for belt drive - has tension roller on lever with spiral torsion spring linked to housing |
-
1994
- 1994-09-07 DE DE19944431801 patent/DE4431801A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3104201C2 (en) * | 1979-11-05 | 1982-12-23 | Dyneer Corp., 06880 Westport, Conn. | Belt tensioning device |
DE3824645A1 (en) * | 1988-07-20 | 1990-01-25 | Schaeffler Waelzlager Kg | CLAMPING DEVICE |
DE3912944A1 (en) * | 1989-03-15 | 1990-09-20 | Muhr & Bender | Tensioning device for vehicle drive belts - consists of hexagonal sectioned torsion bar, with lever and roller or disc |
DE4001689C1 (en) * | 1990-01-22 | 1991-09-05 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Tensioner for belt drive - has tension roller on lever with spiral torsion spring linked to housing |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002038983A1 (en) | 2000-11-09 | 2002-05-16 | Ina-Schaeffler Kg | Friction disk tensioning device |
DE10055594A1 (en) * | 2000-11-09 | 2002-05-23 | Ina Schaeffler Kg | Tensioning device for belt or chain drive has torsion spring between housing and tension arm for supporting tension roller on tension means and exerting axial force on friction |
GB2374394A (en) * | 2001-04-13 | 2002-10-16 | Unitta Co Ltd | Thin autotensioner |
US7588507B2 (en) | 2001-04-13 | 2009-09-15 | Unitta Company | Thin autotensioner |
US7384355B2 (en) | 2001-04-13 | 2008-06-10 | Unitta Company | Thin autotensioner |
GB2374394B (en) * | 2001-04-13 | 2005-08-10 | Unitta Co Ltd | Autotensioner |
DE10248352A1 (en) * | 2002-10-17 | 2004-04-29 | Ina-Schaeffler Kg | Clamping device for a traction mechanism drive |
US7144344B2 (en) | 2002-10-17 | 2006-12-05 | Ina-Schaeffler Kg | Tensioner for a traction drive |
WO2004042253A1 (en) | 2002-11-07 | 2004-05-21 | Ina-Schaeffler Kg | Springing and dampening device |
DE10328900A1 (en) * | 2003-06-26 | 2005-01-13 | Ina-Schaeffler Kg | Clamping system with a Drechstab as spring means |
FR2856767A1 (en) * | 2003-06-26 | 2004-12-31 | Ina Schaeffler Kg | Tightener for traction unit e.g. strap, has swiveling lever with torsion bars, where each bar has one end rotatably connected to lever and another free end rotatably penetrating in machine part |
WO2005114003A1 (en) * | 2004-05-14 | 2005-12-01 | Dayco Europe S.R.L. Con Unico Socio | Vehicle belt drive torsion bar tensioner with an improved damping device |
EP1596098A1 (en) * | 2004-05-14 | 2005-11-16 | Dayco Europe S.r.l. con Unico Socio | Vehicle belt drive torsion bar tensioner with an improved damping device |
US8100793B2 (en) | 2004-05-14 | 2012-01-24 | Dayco Europe S.R.L. Con Unico Socio | Vehicle belt drive torsion bar tensioner with an improved damping device |
WO2006048112A1 (en) | 2004-11-04 | 2006-05-11 | Schaeffler Kg | Tensioning device for a flexible drive with directional damping |
DE102005033017A1 (en) * | 2005-07-15 | 2007-01-25 | Schaeffler Kg | Tensioning device for a traction mechanism comprises a sealing element arranged between a blocking surface of a friction plate and a contact surface of a tensioning lever to seal the annular gap |
DE102005053131A1 (en) * | 2005-11-08 | 2007-05-16 | Schaeffler Kg | Tensioning device for drawing means, has stationary base part and tensioning lever which is movably arranged, relative to base part and coil spring which can be tightened against tensioning lever |
US7850561B2 (en) | 2006-11-27 | 2010-12-14 | Schaeffler Technologies Gmbh & Co. Kg | Tensioning device for a traction element drive with an improved axial-bearing arrangement |
WO2009003828A1 (en) * | 2007-07-05 | 2009-01-08 | Schaeffer Kg | Tensioning device for traction mechanism drives |
CN101688592B (en) * | 2007-07-05 | 2013-02-13 | 谢夫勒科技股份两合公司 | Tensioning device for traction mechanism drives |
CN110630705A (en) * | 2018-06-22 | 2019-12-31 | 上海贝序汽车科技有限公司 | Belt tensioning wheel mechanism of automobile engine |
CN111503231A (en) * | 2019-01-30 | 2020-08-07 | 上海贝序汽车科技有限公司 | Belt tensioning wheel mechanism of automobile engine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2005028B1 (en) | Tensioning device of a traction mechanism drive | |
DE69734566T2 (en) | Automatic clamping device | |
DE68904389T2 (en) | BELT TENSIONER. | |
DE69612174T2 (en) | Belt tensioner with damping mechanism and belt drive system | |
DE60208576T2 (en) | DAMPING MECHANISM FOR A TENSIONING DEVICE | |
DE10131916A1 (en) | Tensioning device for traction devices, in particular belt tensioning device | |
DE60109309T2 (en) | TENSIONER | |
DE3852081T2 (en) | Belt tensioner with an increasingly curved trajectory. | |
DE4243451A1 (en) | Tensioner for belt or chain in combustion IC-engine | |
DE4428560A1 (en) | Tensioning device with lamellar form plane bearing ring | |
DE4431801A1 (en) | Belt, chain etc tensioner with direction dependent damping | |
DE29518314U1 (en) | Tensioning device for traction devices with a conical plain bearing | |
DE4125494C1 (en) | ||
EP0575662A1 (en) | Belt tensioning device | |
DE4338446A1 (en) | Tensioning device for belt or chain drive | |
DE4325424C1 (en) | Device for tensioning drive belts | |
DE20220807U1 (en) | tensioner | |
DE19623485B4 (en) | tensioner | |
DE4336467C2 (en) | Belt tensioning device with a radial bearing sealed against a friction element | |
DE9116275U1 (en) | Belt tensioning device | |
DE4345150A1 (en) | Belt tensioner with a step-like damping characteristic | |
DE4443103A1 (en) | Friction damping disc for drive belt tensioner | |
DE102005033056A1 (en) | Mechanical damping system for chain and belt tensioner especially for IC engines has interlocking friction profiles for support arm mounting | |
DE10053186B4 (en) | Bearing for a belt tensioning arm | |
DE4433153A1 (en) | IC engine accessory belt drive tensioner |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: INA WAELZLAGER SCHAEFFLER OHG, 91074 HERZOGENAURAC |
|
8141 | Disposal/no request for examination |