WO1996041975A1 - Spannvorrichtung für einen kettentrieb - Google Patents
Spannvorrichtung für einen kettentrieb Download PDFInfo
- Publication number
- WO1996041975A1 WO1996041975A1 PCT/EP1996/001683 EP9601683W WO9641975A1 WO 1996041975 A1 WO1996041975 A1 WO 1996041975A1 EP 9601683 W EP9601683 W EP 9601683W WO 9641975 A1 WO9641975 A1 WO 9641975A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- piston
- tensioner
- tensioner housing
- receiving
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/024—Belt drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/022—Chain drive
-
- 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
- F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
-
- 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
- F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
- F16H2007/0853—Ratchets
- F16H2007/0855—Ratchets comprising a clip member engaging with the rack teeth
-
- 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
- F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
- F16H2007/0859—Check valves
-
- 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
- F16H2007/0876—Control or adjustment of actuators
- F16H2007/0878—Disabling during transport
-
- 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
- F16H2007/0891—Linear 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
- 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
Definitions
- the invention relates to a tensioning device for the chain or the belt, for example for the camshaft drive of an internal combustion engine, with a cylindrical tensioner housing and a piston arranged therein and acted upon by a compression spring, which are axially displaceable relative to one another, the shifting relative to the fixed part in the chain tensioning direction ⁇ bare part is surrounded by a first stop ring limiting its return movement.
- Stop rings of this type are made from a wire, whereby a certain minimum wire diameter must not be undercut due to the interaction in terms of the dimensional tolerances and strengths of the components. With this minimum diameter, the wire of the stop ring, which must be able to be slightly changed in the ring diameter during operation, already has a high degree of rigidity, which increases significantly when changing to a smaller ring diameter while maintaining the same wire diameter.
- the first stop ring is designed as a two-leg, U-shaped retaining clip, the legs of which engage in a radially prestressed manner in a locking groove of the displaceable part and can be axially applied to a fixed stop when it is displaced.
- the stiffness of this limiting member can be kept within acceptable limits with a reduced diameter of the locking groove without needing to reduce the wire diameter.
- Stiffness of the first stop ring designed as a retaining clip the force of the compression spring can also remain the same, so that the action of an undesirably high or widely varying spring force on the chain to be tensioned is avoided.
- the tensioner housing 2 is surrounded by a two-leg U-shaped retaining clip 15, which acts as a first stop ring and for which housing 2 a plurality of locking grooves arranged one behind the other in the axial direction are provided.
- the tensioner housing 2 has a first latching groove 16, a second latching groove 17 and a third latching groove 18 as seen from its bottom in the direction of the piston 1.
- the retaining clip 15 can engage in one of the locking grooves 17 or 18 and thereby hinder the further inward movement of the tensioner housing 2 into the receiving housing 3 because it comes to rest against an oblique stop surface 19 there.
- This tensioning device shown in FIGS. 1 to 4 works as follows: after being screwed onto the motor, the transport lock 20 of the tensioner is removed, as a result of which it moves into its working position.
- the tensioner housing 2 extends out of the cylinder bore 10 of the receiving housing 3 due to the action of the compression spring 13, the retaining clip 15, which is located in the first locking groove 16 of the tensioner housing 2 and is biased against it, is carried along by the tensioner housing 2 until it is present at the second stop ring 22.
- Such an extension can be due to chain elongation z. B. possible due to wear. If the tensioner housing 2 now extends further, the retaining clip 15 moves relative to the tensioner housing 2 and snaps into the next locking groove 17. If the engine z. B.
- the tensioning device also ensures a minimal return stroke of the tensioner housing 2, which is required to compensate for eccentricities of the chain wheels, thermal expansion and to provide a damping stroke. is borrowed. This stroke can be seen in FIG. 3 as the distance between the holding clip 15 and the second stop ring 22.
- the retaining clips 15, 35 of the tensioning devices can consist of a spring steel which is bent in a U-shape and pre-tensioned so that they always rest on the circumference of the displaceable part (the tensioner housing 2 or the piston 24).
- the piston 24 is unlocked by pulling the transport securing bracket 40 and, due to the spring force of the compression spring 33 and the engine oil pressure acting in the high-pressure chamber 30, extends from the tensioner housing 25 in the chain tensioning direction. Due to its pretensioning, the holding clamp 35 is initially carried along by the piston 24 until it rests on the second stop ring 42.
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 (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19680418D DE19680418D2 (de) | 1995-06-10 | 1996-04-23 | Spannvorrichtung für einen Kettentrieb |
DE19680418A DE19680418C1 (de) | 1995-06-10 | 1996-04-23 | Spannvorrichtung für einen Kettentrieb |
US08/988,334 US5931754A (en) | 1995-06-10 | 1997-12-01 | Tensioner for a power transmitting member of an internal combustion engine |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19521282 | 1995-06-10 | ||
DE19521282.7 | 1995-06-10 | ||
DE19538401A DE19538401A1 (de) | 1995-06-10 | 1995-10-14 | Spannvorrichtung für einen Kettentrieb |
DE19538401.6 | 1995-10-14 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/988,334 Continuation US5931754A (en) | 1995-06-10 | 1997-12-01 | Tensioner for a power transmitting member of an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996041975A1 true WO1996041975A1 (de) | 1996-12-27 |
Family
ID=26015903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/001683 WO1996041975A1 (de) | 1995-06-10 | 1996-04-23 | Spannvorrichtung für einen kettentrieb |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE19680418C1 (de) |
WO (1) | WO1996041975A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10014700B4 (de) * | 2000-03-24 | 2006-09-07 | Joh. Winklhofer & Söhne GmbH und Co KG | Spannvorrichtung für Endlostreibelemente |
CN103758952A (zh) * | 2013-12-25 | 2014-04-30 | 浙江吉利控股集团有限公司 | 一种用于张紧发动机正时链条的紧链器 |
US9074657B2 (en) | 2010-06-11 | 2015-07-07 | Iwis Motorsysteme Gmbh & Co., Kg | Tensioning system with restoring action |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60221846T2 (de) * | 2002-10-09 | 2008-05-08 | Morse Tec Europe S.R.L. | Externer Schnappverschluss für eine kassettenartige, hydraulische Spannvorrichtung |
DE10343507B4 (de) * | 2003-09-19 | 2015-08-27 | Joh. Winklhofer & Söhne GmbH und Co. KG | Schwenkbarer Transportsicherungsstift für eine Spannvorrichtung |
DE102004041975A1 (de) * | 2004-08-31 | 2006-03-02 | Ina-Schaeffler Kg | Spannvorrichtung für einen Zugmitteltrieb |
JP4951160B2 (ja) * | 2006-06-29 | 2012-06-13 | ボルグワーナー・モールステック・ジャパン株式会社 | テンショナ |
DE202007008985U1 (de) * | 2007-06-27 | 2008-11-06 | Iwis Motorsysteme Gmbh & Co. Kg | Spannvorrichtung mit Federringelement als Transportsicherung |
DE102008033260B4 (de) | 2008-07-15 | 2019-07-11 | Schaeffler Technologies AG & Co. KG | Hydraulisches Spannelement mit Transportsicherung |
DE102011002761B4 (de) | 2011-01-17 | 2020-01-02 | Schaeffler Technologies AG & Co. KG | Zugmittelspannvorrichtung mit Sicherungselement sowie Verbrennungskraftmaschine mit einer solchen Zugmittelspannvorrichtung |
DE102011003056A1 (de) * | 2011-01-24 | 2012-07-26 | Schaeffler Technologies Gmbh & Co. Kg | Zugmitteltrieb mit einem Spanner und einem Klemmelement |
DE102012222707A1 (de) | 2012-12-11 | 2014-06-12 | Schaeffler Technologies Gmbh & Co. Kg | Außenrastspannvorrichtung mit Rückstellung |
DE102014203829A1 (de) | 2014-03-03 | 2015-09-03 | Schaeffler Technologies AG & Co. KG | Kettenspanneinheit mit von außen rücksetzbarem doppeltwirkendem Rastsystem und mechanischer Rückhubbegrenzung |
DE102013209519A1 (de) | 2013-05-23 | 2014-11-27 | Schaeffler Technologies Gmbh & Co. Kg | Kettenspanneinheit mit von außen rücksetzbarem Rastsystem und mechanischer Rückhubbegrenzung |
WO2014187455A1 (de) | 2013-05-23 | 2014-11-27 | Schaeffler Technologies Gmbh & Co. Kg | Kettenspanneinheit mit von aussen rücksetzbarem doppeltwirkendem rastsystem und mechanischer rückhubbegrenzung |
DE102014218537A1 (de) | 2014-09-16 | 2016-03-17 | Schaeffler Technologies AG & Co. KG | Zugmittelspanner mit rücksetzbarem Rastsystem |
DE102015013121A1 (de) | 2015-10-08 | 2017-04-13 | Iwis Motorsysteme Gmbh & Co. Kg | Spannvorrichtung mit Entriegelungsmechanismus |
DE102016003909A1 (de) | 2016-03-30 | 2017-10-05 | Iwis Motorsysteme Gmbh & Co. Kg | Spannerpatrone mit Nachstelleinrichtung |
DE102016003904A1 (de) | 2016-03-30 | 2017-10-05 | Iwis Motorsysteme Gmbh & Co. Kg | Spannvorrichtung mit Rastkrone |
DE102017127808A1 (de) | 2017-11-24 | 2019-05-29 | Iwis Motorsysteme Gmbh & Co. Kg | Spannvorrichtung mit Transportsicherung |
DE102017127810A1 (de) | 2017-11-24 | 2019-05-29 | Iwis Motorsysteme Gmbh & Co. Kg | Spannvorrichtung mit Nachstelleinrichtung |
DE102019106556A1 (de) * | 2019-03-14 | 2020-09-17 | Iwis Motorsysteme Gmbh & Co. Kg | Spannvorrichtung mit einer unfallsicheren Transportsicherung |
DE102019123818A1 (de) * | 2019-09-05 | 2021-03-11 | Iwis Motorsysteme Gmbh & Co. Kg | Spannvorrichtung mit einem distalen Nachstellprofil auf dem Spannkolben |
DE102019123816A1 (de) * | 2019-09-05 | 2021-03-11 | Iwis Motorsysteme Gmbh & Co. Kg | Spannvorrichtung mit einem einzelnen Sicherungsring |
US20220299091A1 (en) | 2019-09-05 | 2022-09-22 | Iwis Motorsysteme Gmbh & Co. Kg | Tensioning device with a single securing ring |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2526908A2 (fr) * | 1982-05-11 | 1983-11-18 | Porsche Ag | Tendeur de chaine hydraulique |
EP0265727A1 (de) * | 1986-10-30 | 1988-05-04 | INA Wälzlager Schaeffler KG | Kettenspanner |
EP0289814A1 (de) * | 1987-05-06 | 1988-11-09 | INA Wälzlager Schaeffler KG | Hydraulische Spannvorrichtung |
US5116284A (en) * | 1991-04-11 | 1992-05-26 | Nakwon Cho | Tensioner for a power transmission belt or the like |
EP0615076A1 (de) * | 1993-03-12 | 1994-09-14 | Eaton Corporation | Hydraulischer Kettenspanner |
US5370584A (en) * | 1993-01-15 | 1994-12-06 | Borg-Warner Automotive, Inc. | Piston design for removing air from a hydraulic tensioner |
-
1996
- 1996-04-23 DE DE19680418A patent/DE19680418C1/de not_active Expired - Fee Related
- 1996-04-23 WO PCT/EP1996/001683 patent/WO1996041975A1/de not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2526908A2 (fr) * | 1982-05-11 | 1983-11-18 | Porsche Ag | Tendeur de chaine hydraulique |
EP0265727A1 (de) * | 1986-10-30 | 1988-05-04 | INA Wälzlager Schaeffler KG | Kettenspanner |
EP0289814A1 (de) * | 1987-05-06 | 1988-11-09 | INA Wälzlager Schaeffler KG | Hydraulische Spannvorrichtung |
US5116284A (en) * | 1991-04-11 | 1992-05-26 | Nakwon Cho | Tensioner for a power transmission belt or the like |
US5370584A (en) * | 1993-01-15 | 1994-12-06 | Borg-Warner Automotive, Inc. | Piston design for removing air from a hydraulic tensioner |
EP0615076A1 (de) * | 1993-03-12 | 1994-09-14 | Eaton Corporation | Hydraulischer Kettenspanner |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10014700B4 (de) * | 2000-03-24 | 2006-09-07 | Joh. Winklhofer & Söhne GmbH und Co KG | Spannvorrichtung für Endlostreibelemente |
US9074657B2 (en) | 2010-06-11 | 2015-07-07 | Iwis Motorsysteme Gmbh & Co., Kg | Tensioning system with restoring action |
CN103758952A (zh) * | 2013-12-25 | 2014-04-30 | 浙江吉利控股集团有限公司 | 一种用于张紧发动机正时链条的紧链器 |
CN103758952B (zh) * | 2013-12-25 | 2016-06-29 | 浙江吉利控股集团有限公司 | 一种用于张紧发动机正时链条的紧链器 |
Also Published As
Publication number | Publication date |
---|---|
DE19680418C1 (de) | 2001-11-29 |
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