EP1979651A1 - Kettentrieb sowie verwendung einer kette in einem kettentrieb - Google Patents
Kettentrieb sowie verwendung einer kette in einem kettentriebInfo
- Publication number
- EP1979651A1 EP1979651A1 EP07712136A EP07712136A EP1979651A1 EP 1979651 A1 EP1979651 A1 EP 1979651A1 EP 07712136 A EP07712136 A EP 07712136A EP 07712136 A EP07712136 A EP 07712136A EP 1979651 A1 EP1979651 A1 EP 1979651A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chain
- drive
- sprocket
- tabs
- punched
- 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- Withdrawn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
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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G13/00—Chains
- F16G13/02—Driving-chains
- F16G13/04—Toothed chains
-
- 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
- F16H35/00—Gearings or mechanisms with other special functional features
- F16H2035/003—Gearings comprising pulleys or toothed members of non-circular shape, e.g. elliptical gears
Definitions
- the invention relates to a chain drive comprising a plurality of shafts integrated into the drive, each having a sprocket and a chain guided over the sprockets, wherein at least one sprocket for reducing the introduced from the drive spurious oscillations chain forces is out of round, the chain from each other via bolt-like links connected, Kirs tiltbrechungen having tabs.
- Chain drives are used, for example, in the form of control drives in internal combustion engines in the automotive sector. Due to the system, such a chain drive does not run uniformly and without interference; instead, interfering vibrations are coupled into the drive via the integrated shafts or generated by their associated or downstream units, which lead to periodically fluctuating forces and moments in the train. These fluctuations inevitably result in considerable local force variations acting on the chain, which the chain must absorb for what it is designed accordingly.
- chains are used in such schwanzungsbelasteten chain drives, in which the connection openings of the individual tabs, which are penetrated by the bolt-like connecting member, are finely punched. In contrast to a normally punched opening, a fine-perforated opening is characterized by a smooth cut portion> 80%.
- This smooth cut portion results from the ratio of the given with respect to the punching direction smooth cutting length of the punch opening to Laschendicke.
- the smooth-cut portion should be as high as possible to absorb the high forces or the compensation of the force fluctuations to a high power transmission area to realize between tab and link.
- one of the sprockets be it one Drive wheel, eg the crankshaft wheel, or a driven wheel, e.g. a camshaft wheel or the like to make out of round and due to this non-circular, e.g. oval design purposefully introduce compensation vibrations in the drive, which compensate for the unwanted spurious oscillations, thus counteract them.
- This can be a certain damping of the spurious vibrations and thus a calming of the train can be achieved.
- Even in such "calming" instincts fine-cut chains are still being used as a result of the still existing, albeit damped, force fluctuations.
- the invention is therefore based on the problem of specifying a chain drive, which is designed improved compared to previously known chain drives, especially in cost-technical view.
- the chain drive integrated in the chain according to a first alternative of the invention on each link three adjacent tabs, of which optionally the middle is profiled tooth-like for a force-transmitting attack on the toothed sprocket have.
- this simplest chain design so only three tabs are arranged on a connecting member.
- the invention further relates to the use of a chain consisting of bolt-like links interconnected, connection openings having tabs, wherein the gleichs trimbrechungen all tabs are punched normal, in a chain drive comprising a plurality of sprockets over which the chain is guided, wherein at least one sprocket is out of round.
- the chain used according to the invention furthermore has three, five or seven tabs on each link of the chain.
- Fig. 2 is a side view of a chain drive of FIG. 1 usable
- Chain, 3 is a partial sectional view through the chain cutout of Fig. 2,
- Fig. 4 is an enlarged detail view of the connecting portion of the individual tabs via a connecting member
- Fig. 5 is an illustration for explaining the term "fine blanking"
- Fig. 1 shows an exemplary chain drive 1 according to the invention, e.g. a timing drive of a motor vehicle internal combustion engine. Shown is a first wave 2, e.g. a crankshaft on which a first, here non-circular, oval sprocket 3 is seated. Furthermore, two further shafts 4, 5, e.g. two camshafts provided on which each round sprockets 6, 7 sit. While the crankshaft 2 is directly coupled to and driven by the engine, the camshafts 4, 5 are driven by the chain 8. Via the crankshaft 2, resulting from the operation of the internal combustion engine and the piston movement, spurious vibrations are registered in the chain drive 1, which lead to periodically fluctuating force, torque and load changes to the chain 8.
- a first wave 2 e.g. a crankshaft on which a first, here non-circular, oval sprocket 3 is seated.
- FIG. 2 shows a detail of a chain or tooth chain 8 that can be used in the chain drive 1, which, according to the embodiment according to the German patent application DE 10 2005 024 747 A1, for example, can be an inverted toothed chain.
- This consists of lateral, outer guide plates 9, which follow in the embodiment shown two pivoting plates 10, between which in turn a connecting plate 11 ange- is orders.
- the outer guide straps 9 and the central connecting strap 11 are essentially congruent to one another, while the pivoting straps 10 are arranged offset therefrom.
- the tabs themselves have corresponding connection openings 12 (on the guide tabs 9), 13 (on the pivoting tabs 10) and 14 (on the connecting tab 11).
- connection openings 12, 13 and 14 are penetrated by a connecting member 15 in the form of a connecting pin or connecting pin.
- This is relatively thick to improve the wear resistance and to avoid bending.
- the pitch and the diameter of the respective connection openings 12 of the guide plates 9 and the connection opening 14 of the connecting plate 11 can be chosen so that both sit in a press fit on the connecting member 15, so that they are not pivotable, it is possible to change the diameter of the Connecting openings 13 of the swivel plates 10 to choose slightly larger, so that they are accommodated in a clearance fit on the connecting member 15.
- the pitch can be chosen slightly smaller, so that the inner diameter wall rests at a point on the connecting member 15.
- the two pivoting tabs 10 and the connecting tab 11 are significantly wider than the guide tabs 9, preferably twice as wide in order to realize the largest possible number of contact surfaces. which is particularly possible to a considerable degree, even if the connecting plate 11 - according to the teaching according to DE 10 2005 024 747 - is provided with a tooth profile.
- the swivel plates 10 and the connecting plate 11 have slightly different thicknesses and outer contours, so that the parts can be sorted easily during assembly.
- connection openings 12, 13, 14 of all lugs 9, 10 and 11 are now normally punched.
- a normally punched connection opening is characterized by a smooth cut portion ⁇ 80% and can be made in a much simpler way, as the one Slit section> 80% fine-punched connection opening.
- G is the length of the smooth section 17, see FIG. 5, while L describes the lashing thickness, see FIG. 5.
- the calculated straight cut portion is ⁇ 80%
- the smooth cut portion for a finely punched connection opening is> 80%.
- the larger the smooth cut portion the greater is necessarily the contact surface of the respective connection opening on the connecting member 15 and thus the force transmission surface.
- each of the connection apertures 12, 13, 14 is punched normally, that is to say it has a smooth cut portion of ⁇ 80%. Nevertheless, the power fluctuations still present or, in general, the forces to be transmitted can be absorbed or transmitted by the chain.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Gears, Cams (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006004533A DE102006004533A1 (de) | 2006-02-01 | 2006-02-01 | Kettentrieb sowie Verwendung einer Kette in einem Kettentrieb |
PCT/EP2007/050915 WO2007088167A1 (de) | 2006-02-01 | 2007-01-30 | Kettentrieb sowie verwendung einer kette in einem kettentrieb |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1979651A1 true EP1979651A1 (de) | 2008-10-15 |
Family
ID=37989085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07712136A Withdrawn EP1979651A1 (de) | 2006-02-01 | 2007-01-30 | Kettentrieb sowie verwendung einer kette in einem kettentrieb |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090054187A1 (de) |
EP (1) | EP1979651A1 (de) |
CN (1) | CN101379320B (de) |
DE (1) | DE102006004533A1 (de) |
WO (1) | WO2007088167A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5160096B2 (ja) * | 2007-01-31 | 2013-03-13 | 株式会社ジェイテクト | 動力伝達チェーンおよびこれを備える動力伝達装置 |
DE102009016039A1 (de) * | 2008-04-03 | 2009-12-10 | Wacker Neuson Se | Vibrationsplatte mit Riemenantrieb |
DE102010025187A1 (de) | 2010-06-26 | 2011-12-29 | Daimler Ag | Brennkraftmaschinenventiltriebvorrichtung |
CN101929139B (zh) * | 2010-08-25 | 2012-01-04 | 哈尔滨市环隆卫生工具厂 | 清雪机的齿形链输出传动装置 |
EP2831468B1 (de) | 2012-03-29 | 2021-12-01 | Litens Automotive Partnership | Spannvorrichtung und endlosantriebsanordnung |
US20130345006A1 (en) * | 2012-06-21 | 2013-12-26 | Tai-Her Yang | Chainwheel Enabling Positive Rotational Transmission and Reverse Rotational Sliding Features |
WO2015023269A1 (en) * | 2013-08-14 | 2015-02-19 | Borgwarner Inc. | Chain with alternating inside link position to enable narrow lacing with improved nvh behavior |
US10669139B2 (en) * | 2016-06-14 | 2020-06-02 | Halls Labs LLC | Rack and chain lifting device |
US11174921B2 (en) | 2016-09-13 | 2021-11-16 | Litens Automotive Partnership | V tensioner and endless drive arrangement |
CN106917851B (zh) * | 2017-03-28 | 2019-02-26 | 浙江工业职业技术学院 | 巴斯噶非圆—巴斯噶非圆—非圆三轮同步带传动设计方法 |
CN106949204B (zh) * | 2017-03-28 | 2019-02-26 | 浙江工业职业技术学院 | 变松弛量自补偿的多轮式非圆同步带传动的设计方法 |
DE102017116251A1 (de) * | 2017-07-19 | 2019-01-24 | Schaeffler Technologies AG & Co. KG | Zahnkette mit Laschen, deren Laschenöffnungen konvex gestaltete Randzonen aufweisen |
CN107654597B (zh) * | 2017-09-25 | 2019-09-06 | 泉州台商投资区久协机械科技有限公司 | 一种可变速的消除波动链轮装置 |
CN113210249B (zh) * | 2021-05-17 | 2022-02-22 | 浙江理工大学 | 一种多层循环式柔性网筛茶鲜叶分选机及其分选方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1586857A (en) * | 1925-08-11 | 1926-06-01 | Anton P Stiansen | Chain |
US4906224A (en) * | 1989-02-22 | 1990-03-06 | Magna International, Inc. | Inverted tooth chain |
DE19520508A1 (de) | 1995-06-03 | 1996-12-05 | Audi Ag | Umschlingungstrieb |
JP3714436B2 (ja) * | 1996-11-20 | 2005-11-09 | 本田技研工業株式会社 | サイレントチェーンを用いた歯車伝動装置 |
JP3091425B2 (ja) * | 1997-02-26 | 2000-09-25 | 株式会社椿本チエイン | サイレントチェーンのプレート |
DE19920989A1 (de) * | 1999-05-06 | 2000-11-09 | Winklhofer & Soehne Gmbh | Zahnkette mit verschleißmindernden Kettengelenken |
JP2001182780A (ja) * | 1999-12-27 | 2001-07-06 | Tsubakimoto Chain Co | サイレントチェ−ン |
DE20220367U1 (de) * | 2001-11-27 | 2003-07-24 | Litens Automotive, Woodbridge, Ontario | Synchronantriebsvorrichtung |
GB2406891B (en) * | 2003-10-07 | 2006-09-27 | Renold Plc | A transmission chain |
DE202004019559U1 (de) | 2004-07-06 | 2005-03-03 | Ina-Schaeffler Kg | Zahnkette |
-
2006
- 2006-02-01 DE DE102006004533A patent/DE102006004533A1/de not_active Withdrawn
-
2007
- 2007-01-30 EP EP07712136A patent/EP1979651A1/de not_active Withdrawn
- 2007-01-30 US US12/162,822 patent/US20090054187A1/en not_active Abandoned
- 2007-01-30 WO PCT/EP2007/050915 patent/WO2007088167A1/de active Application Filing
- 2007-01-30 CN CN2007800043359A patent/CN101379320B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2007088167A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN101379320B (zh) | 2012-04-18 |
CN101379320A (zh) | 2009-03-04 |
DE102006004533A1 (de) | 2007-08-16 |
US20090054187A1 (en) | 2009-02-26 |
WO2007088167A1 (de) | 2007-08-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080730 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR IT |
|
17Q | First examination report despatched |
Effective date: 20081110 |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR IT |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20130801 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230522 |