DE102011085122A1 - Tensioning device for belt drive of combustion engine, has bearing insert and tension arm that are contacted at bearing surface portions which are extended diagonally and mirror-symmetrically to circular arc plane - Google Patents
Tensioning device for belt drive of combustion engine, has bearing insert and tension arm that are contacted at bearing surface portions which are extended diagonally and mirror-symmetrically to circular arc plane Download PDFInfo
- Publication number
- DE102011085122A1 DE102011085122A1 DE201110085122 DE102011085122A DE102011085122A1 DE 102011085122 A1 DE102011085122 A1 DE 102011085122A1 DE 201110085122 DE201110085122 DE 201110085122 DE 102011085122 A DE102011085122 A DE 102011085122A DE 102011085122 A1 DE102011085122 A1 DE 102011085122A1
- Authority
- DE
- Germany
- Prior art keywords
- circular arc
- bearing
- drive wheel
- belt
- bearing surface
- 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- Withdrawn
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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
- F16H2007/0806—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
- F16H2007/0863—Finally actuated members, e.g. constructional details thereof
- F16H2007/0874—Two or more finally actuated members
-
- 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
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 Erfindung betrifft eine Spannvorrichtung für einen Riementrieb, der ein auf einer Antriebswelle einer Elektromaschine angeordnetes Antriebsrad, ein oder mehrere weitere Riemenräder und einen endlos umlaufenden Riemen aufweist, der das Antriebsrad und die weiteren Riemenräder umschlingt, wobei die Spannvorrichtung folgendes umfasst:
- – zwei Spannrollen, die den Riemen in Umlaufrichtung vor und hinter dem Antriebsrad mit Vorspannkraft beaufschlagen,
- – ein die Vorspannkraft erzeugendes Federmittel,
- – einen kreisbogenförmigen Spannarm, der an einem Ende durch die Kraft des Federmittels beaufschlagt ist und der am anderen Ende eine der Spannrollen lagert,
- – und ein Spannergehäuse, in dem das Federmittel aufgenommen ist und in dem der Spannarm mittels eines Gleitlagereinsatzes in der Ebene des Kreisbogens beweglich gelagert ist.
- Two tension rollers, which act on the belt in the direction of rotation in front of and behind the drive wheel with biasing force,
- A spring means generating the biasing force,
- A circular arc-shaped clamping arm which is acted on at one end by the force of the spring means and which supports one of the tensioning rollers at the other end,
- - And a tensioner housing, in which the spring means is received and in which the clamping arm is movably mounted by means of a plain bearing insert in the plane of the circular arc.
Hintergrund der ErfindungBackground of the invention
Bei Riementrieben mit wechselweise Drehmoment aufnehmenden und abgebenden Triebrädern und entsprechendem Wechsel von Zugtrum und Leertrum an diesen Triebrädern erfordert das Spannen des Leertrums eine Spannvorrichtung mit zwei Spannrollen, die den Riemen vor und hinter dem Antriebsrad der wechselweise antreibenden und angetriebenen Antriebswelle vorspannen. Es handelt sich typischer- aber nicht notwendigerweise um den Riementrieb einer Brennkraftmaschine mit einer Elektromaschine in Form eines Startergenerators, der nicht nur zwecks Stromerzeugung von der Brennkraftmaschine angetrieben wird, sondern auch die Brennkraftmaschine antreibt, um diese zu starten.In belt drives with alternating torque receiving and donating drive wheels and a corresponding change of tension and backlash at this Triebrädern requires the clamping of the return strand a tensioning device with two tension rollers that bias the belt in front of and behind the drive wheel of the alternately driving and driven drive shaft. It is typically but not necessarily the belt drive of an internal combustion engine with an electric machine in the form of a starter generator, which is not driven only for the purpose of generating electricity from the internal combustion engine, but also drives the internal combustion engine to start them.
Eine Spannvorrichtung der eingangs genannten Art ist aus der nicht vorveröffentlichten Druckschrift
Aufgabe der ErfindungObject of the invention
Ausgehend hiervon liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine Spannvorrichtung der eingangs genannten Art hinsichtlich der Gleitlagerung des Spannarms im Spannergehäuse konstruktiv zu verbessern.Proceeding from this, the present invention seeks to constructively improve a clamping device of the type mentioned in terms of the sliding bearing of the clamping arm in the tensioner housing.
Zusammenfassung der ErfindungSummary of the invention
Die Lösung hierfür besteht darin, dass sich der Gleitlagereinsatz und der Spannarm an Lagerflächenabschnitten kontaktieren, die im Querschnitt durch die Kreisbogenebene gerade sind und die schräg und spiegelsymmetrisch zur Kreisbogenebene verlaufen.The solution to this is that contact the plain bearing insert and the clamping arm on bearing surface portions which are straight in cross section through the circular arc plane and extend obliquely and mirror-symmetrically to the circular arc plane.
Anders als im eingangs zitierten Stand der Technik, bei dem die sich kontaktierenden Lagerflächen sämtlich gekrümmt ausgebildet sind und folglich ein Verdrehen des Spannarms mitsamt der zugehörigen Spannrolle kaum verhindern können, bewirken die (im Querschnitt) geraden Lagerflächenabschnitte eine definierte Winkelausrichtung des Spannarms im Spannergehäuse, so dass die zugehörige Spannrollenlauffläche idealerweise exakt parallel zum Riemen steht. Die schräge Ausrichtung und spiegelsymmetrische Anordnung dieser Lagerflächenabschnitte bewirken außerdem, dass die am Spannarm angreifenden Kräfte den Spannarm stabil in der Kreisbogenebene zentrieren und somit einer Verdrehung des Spannarms samt Spannrolle gegenüber der Kreisbogenebene entgegen wirken.Unlike in the cited prior art, in which the contacting bearing surfaces are all curved and consequently can hardly prevent twisting of the tensioning arm together with the associated tensioning roller, the (in cross section) straight bearing surface sections cause a defined angular orientation of the tensioning arm in the tensioner housing, see above ideally, the associated tension pulley tread is exactly parallel to the belt. The oblique orientation and mirror-symmetrical arrangement of these bearing surface sections also cause the forces acting on the clamping arm center the clamping arm stable in the circular arc plane and thus counteract a rotation of the clamping arm together with tensioning roller relative to the circular arc plane.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Weitere Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung und aus den Zeichnungen, die Ausführungsbeispiele der Erfindung zeigen. Bei den Ausführungsbeispielen handelt es sich jeweils um eine Spannvorrichtung für einen Startergenerator-Riementrieb einer Brennkraftmaschine, wobei die
Ausführliche Beschreibung der ZeichnungenDetailed description of the drawings
Das Kurbelwellenrad
Wie eingangs erwähnt, erfordert das Spannen des wechselnden Leertrums eine Spannvorrichtung mit zwei Spannrollen
Das Spannergehäuse
Der Kanal
Die Halterung der Gleitschale
Aus den
Wie aus den
Die Spannvorrichtung
Wie die beiden Halbschalen
Die Lagerung der Spannvorrichtung
Erfindungsgemäße Modifikationen der Spannvorrichtung sind in den
Bei der in den Figuren jeweils unten eingezeichneten Kraft FN handelt es sich um die aus der Kraft des Riemens
Der in den
Bezugszeichenliste LIST OF REFERENCE NUMBERS
- 11
- Riementrieb belt drive
- 22
- Riemen belt
- 33
- Antriebsrad drive wheel
- 44
- Elektromaschine / Startergenerator Electric machine / starter generator
- 55
- Riemenrad der Kurbelwelle Pulley of the crankshaft
- 66
- Riemenrad des Klimakompressors Belt pulley of the air conditioning compressor
- 77
- Trum Trum
- 88th
- Trum Trum
- 99
- Spannrolle idler
- 1010
- Spannrolle idler
- 1111
- Spannvorrichtung jig
- 1212
- Spannergehäuse tensioner housing
- 1313
- Spannarm clamping arm
- 1414
- Spannarm clamping arm
- 1515
- Kanal channel
- 1616
- Federmittel / Bogenfeder Spring means / bow spring
- 1717
- Lagerabschnitt des beweglichen Spannarms Bearing section of the movable clamping arm
- 1818
- Gleitschale sliding
- 1919
- Gleitlagereinsatz plain bearing applications
- 2020
- Gleitlagereinsatz plain bearing applications
- 2121
- Gleitlager bearings
- 2222
- Nase des Gleitlagereinsatzes Nose of the plain bearing insert
- 2323
- Öffnung für die Nase Opening for the nose
- 2424
- Nase der Gleitschale Nose of the slip bowl
- 2525
- Öffnung für die Gleitschalennase Opening for the sliding nose
- 2626
- Befestigungszapfen des befestigten Spannarms Fastening pin of the attached clamping arm
- 2727
- Halbzylinder der Halbschalen Half cylinder of half shells
- 2828
- Nasen am Befestigungszapfen Noses on the mounting pin
- 2929
- Achse der Antriebswelle Axle of the drive shaft
- 3030
- Antriebswelle drive shaft
- 3131
- Kugellager ball-bearing
- 3232
- Gewindebohrung threaded hole
- 3333
- Bohrung für Sicherungsstift Bore for locking pin
- 3434
- Bohrung für Sicherungsstift Bore for locking pin
- 3535
- zylindrischer Vorsprung cylindrical projection
- 3636
- kreisringförmige Ausnehmung annular recess
- 3737
- Nabe des Antriebsrads Hub of the drive wheel
- 3838
- Außenumfang des Antriebsrads Outer circumference of the drive wheel
- 3939
- schräger Lagerflächenabschnitt oblique bearing surface section
- 4040
- Kreisbogenebene Arc level
- 4141
- orthogonaler Lagerflächenabschnitt orthogonal bearing surface section
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102011082764 A1 [0003, 0007] DE 102011082764 A1 [0003, 0007]
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110085122 DE102011085122A1 (en) | 2011-10-24 | 2011-10-24 | Tensioning device for belt drive of combustion engine, has bearing insert and tension arm that are contacted at bearing surface portions which are extended diagonally and mirror-symmetrically to circular arc plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110085122 DE102011085122A1 (en) | 2011-10-24 | 2011-10-24 | Tensioning device for belt drive of combustion engine, has bearing insert and tension arm that are contacted at bearing surface portions which are extended diagonally and mirror-symmetrically to circular arc plane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102011085122A1 true DE102011085122A1 (en) | 2013-04-25 |
Family
ID=48051174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE201110085122 Withdrawn DE102011085122A1 (en) | 2011-10-24 | 2011-10-24 | Tensioning device for belt drive of combustion engine, has bearing insert and tension arm that are contacted at bearing surface portions which are extended diagonally and mirror-symmetrically to circular arc plane |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102011085122A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015167602A1 (en) * | 2014-04-28 | 2015-11-05 | Gates Corporation | Orbital tensioner |
| DE102015215812A1 (en) * | 2015-08-19 | 2017-02-23 | Schaeffler Technologies AG & Co. KG | tensioner |
| CN107013642A (en) * | 2017-06-05 | 2017-08-04 | 青岛泰德汽车轴承股份有限公司 | A kind of semi-circular shape sliding bell automatic takeup |
| US9976634B2 (en) | 2016-07-06 | 2018-05-22 | Gates Corporation | Rotary tensioner |
| US10746264B2 (en) | 2017-11-16 | 2020-08-18 | Gates Corporation | Rotary tensioner |
| US10962092B2 (en) | 2017-09-08 | 2021-03-30 | Gates Corporation | Tensioner and method |
| US11333223B2 (en) | 2019-08-06 | 2022-05-17 | Gates Corporation | Orbital tensioner |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011082764A1 (en) | 2010-10-13 | 2012-04-19 | Schaeffler Technologies Gmbh & Co. Kg | Clamping device for a traction mechanism drive of an internal combustion engine |
-
2011
- 2011-10-24 DE DE201110085122 patent/DE102011085122A1/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011082764A1 (en) | 2010-10-13 | 2012-04-19 | Schaeffler Technologies Gmbh & Co. Kg | Clamping device for a traction mechanism drive of an internal combustion engine |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015167602A1 (en) * | 2014-04-28 | 2015-11-05 | Gates Corporation | Orbital tensioner |
| DE102015215812A1 (en) * | 2015-08-19 | 2017-02-23 | Schaeffler Technologies AG & Co. KG | tensioner |
| US10309498B2 (en) | 2015-08-19 | 2019-06-04 | Schaeffler Technologies AG & Co. KG | Belt tensioner |
| DE102015215812B4 (en) * | 2015-08-19 | 2020-03-26 | Schaeffler Technologies AG & Co. KG | Belt tensioner |
| US9976634B2 (en) | 2016-07-06 | 2018-05-22 | Gates Corporation | Rotary tensioner |
| CN107013642A (en) * | 2017-06-05 | 2017-08-04 | 青岛泰德汽车轴承股份有限公司 | A kind of semi-circular shape sliding bell automatic takeup |
| CN107013642B (en) * | 2017-06-05 | 2023-05-23 | 青岛泰德汽车轴承股份有限公司 | Automatic tensioning device for semicircular sliding belt |
| US10962092B2 (en) | 2017-09-08 | 2021-03-30 | Gates Corporation | Tensioner and method |
| US10746264B2 (en) | 2017-11-16 | 2020-08-18 | Gates Corporation | Rotary tensioner |
| US11333223B2 (en) | 2019-08-06 | 2022-05-17 | Gates Corporation | Orbital tensioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140214 Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120827 Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120827 Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140214 |
|
| R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20150407 |
|
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |