EP1187970B1 - Kettentrieb zum antrieb von zwei engstehenden parallelen wellen - Google Patents

Kettentrieb zum antrieb von zwei engstehenden parallelen wellen Download PDF

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Publication number
EP1187970B1
EP1187970B1 EP00991593A EP00991593A EP1187970B1 EP 1187970 B1 EP1187970 B1 EP 1187970B1 EP 00991593 A EP00991593 A EP 00991593A EP 00991593 A EP00991593 A EP 00991593A EP 1187970 B1 EP1187970 B1 EP 1187970B1
Authority
EP
European Patent Office
Prior art keywords
chain
drive
shaft
wheel
wheels
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.)
Expired - Lifetime
Application number
EP00991593A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1187970A2 (de
Inventor
Markus Duesmann
Lukas Wagener
Rainer Lach
Jürgen BUCK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FEV Europe GmbH
Original Assignee
FEV Motorentechnik GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE10042041A external-priority patent/DE10042041A1/de
Application filed by FEV Motorentechnik GmbH and Co KG filed Critical FEV Motorentechnik GmbH and Co KG
Publication of EP1187970A2 publication Critical patent/EP1187970A2/de
Application granted granted Critical
Publication of EP1187970B1 publication Critical patent/EP1187970B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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

Definitions

  • the invention has for its object to solve by means of chain drive the above-mentioned problems.
  • a chain drive for driving two closely parallel shafts, in particular of two overhead camshafts on a reciprocating internal combustion engine, in which a drive chain is provided, which is guided via a drive and sprockets on the shafts and arranged on each shaft at least one sprocket is, wherein the sprockets offset axially to each other and are arranged overlapping and each of the sprocket on the one shaft on the other shaft at least one support wheel is assigned, guided and supported by an edge region of the not at this shaft with a sprocket engaged chain part is.
  • the staggered and overlapping arrangement of the sprockets on the two shafts can be a shaft spacing represent, which is smaller than the intended diameter of the sprockets.
  • Each of the two shafts is driven together by a chain, wherein the edge region of each not guided via a sprocket chain part are guided over a support wheel.
  • the friction losses correspond to a normal chain drive.
  • the jockey wheel can in this case be circular on its outer circumference. It is expedient, however, if the support wheel has a polygonal shape on its outer circumference, which substantially corresponds to the contour of the adjacent region of the chain.
  • a multi-row drive chain roller or sleeve chain
  • the link plates on the support wheel In one embodiment with a toothed chain, the edge of the toothed chain rests on the support wheel, so that the contour of the support wheel can be correspondingly shaped as a toothed wheel.
  • the invention is not limited to drive chains, in particular drive roller or drive sleeve chains or toothed chains.
  • a toothed belt and correspondingly a toothed belt pulley of the terms “drive chain” and “sprocket” includes.
  • the term “chain drive” in the context of the invention also includes a toothed belt drive.
  • crankshaft speed is taken over a sprocket 1 as a drive and transmitted by means of a drive chain 2 in the form of a roller or sleeve chain on two sprockets 3, 4, according to the intended gear ratio n crankshaft : n Nackenwelle of 2: 1 according to have twice the diameter of the drive sprocket 1.
  • a sprocket 3 is driven, which is in communication with a camshaft.
  • the sprocket 3 is associated with a gear 9 which is in communication with a corresponding gear 10 on the other camshaft and forms a gear transmission for the transverse drive.
  • the invention is based on the drive according to FIG.
  • the drive is also removed from the sprocket 1 connected to the crankshaft and transmitted via a central drive chain 2 to a first sprocket arrangement 3.1 and a second sprocket arrangement 4.1.
  • this system in turn, only one drive chain is provided, which is guided over both sprocket assemblies 3.1 and 4.1.
  • Fig. 5 shows, for the two sprocket assemblies each have a sprocket 3.2 and a sprocket 4.2 provided, which are each firmly connected to the associated shaft 11 and 12.
  • the two sprockets 3.2 and 4.2 are, as mentioned, overlapping and thus axially offset from each other, as shown in FIG. 5 can be seen.
  • the drive chain 2 is formed by a double-row roller or sleeve chain. The distance between the two chain tracks 2.3 and 2.4 to each other also determines the axial distance of the two sprockets 3.2 and 4.2 to each other.
  • Each of the two sprockets 3.2 and 4.2 of the chain assemblies 3.1 and 4.1 is associated with a support wheel 13 and 14.
  • the control wheels 13 and 14 are in turn axially offset and arranged to each other so that they each lead the outer plates 15 of the chain track, which are not located at the respective sprocket assembly 3.1 and 4.1 with a sprocket in engagement.
  • the two support wheels 13 and 14 are on their peripheral surface formed as a polygon and suitably shaped so that it corresponds to the contour defined by the adjacent outer tabs.
  • the associated drive sprocket 1 is designed as a double sprocket, so that the two chain tracks 2.3 and 2.4 are driven by the drive sprocket 1 and accordingly each of the two chain tracks respectively drives a sprocket, ie the chain track 2.3 the sprocket 3.2 and the chain track 2.4 the sprocket 4.2. Since the drive chain 2 is tightened by a chain tensioner, the polygonal structure of the peripheral surface of the two support wheels 13 and 14 in conjunction with the corresponding contour of the adjacent outer plates 15 each also contributes to a small extent to transmit the torque to the associated shaft 11 and 12 respectively at.
  • the other shaft for example, the shaft 12, then two sprockets 9.3 and 9.4 are assigned, the axial distance is dimensioned so that the two outer chain tracks 2.6 and 2.7 of the drive chain can be performed on these sprockets 4.3 and 4.4.
  • the arrangement of a support wheel between these two parallel sprockets 4.3 and 4.4 can then be dispensed with.
  • the two sprockets 4.3 and 4.4 are assigned to the one shaft 12, two support wheels 13.1 and 13.2 on the other shaft 11, each of the outer plates on this shaft 11 not with the middle sprocket 3.2 in Engaged chain tracks 2.6 and 2.7 guided and supported. While in the embodiment according to. Fig. 5 with a double-row drive chain, the two chain tracks are subjected to a certain tilting moment, the last-described embodiment with a three-row drive chain in itself torque-free.
  • the invention is not limited to the above-described use of drive chains.
  • the arrangement acc. Fig. 6 is also suitable for use with ten belts. It is expedient here if the toothed belts are provided with reinforcing elements arranged transversely to the running direction in order to prevent or reduce a deflection in the area between the toothed belt pulleys corresponding to the two sprockets 4.3 and 4.4.
  • Fig. 7 is a larger scale in an end view of a camshaft drive according to the embodiment.
  • Fig. 4 with a toothed chain 2.11 shown as a drive chain, which is guided over two sprockets 3.11 and 4.11, which are rotatably connected to the shafts 11 and 12.
  • the two sprockets 3.11 and 4.11 overlap, as shown schematically in Fig. 4, so that the two shafts to be driven 11 and 12 can be arranged in a correspondingly small distance b from each other.
  • toothed chain 2.11 In order to be able to support the toothed chain 2.11 reliably and as tilt-free as possible, in turn, combinations of gear and jockey wheel are possible.
  • the advantage of using a toothed chain 2.11 as a drive chain is that - this is like a flyer chain offset from a plurality and overlapping formed by bolts interconnected tabs, which are formed on a running side as teeth, so that the chain overall forms a continuous toothing.
  • the tabs are in sliding or rolling joints on the bolt. Due to the dense arrangement of the tabs next to each other is the silent chain except in its deflection in itself relatively stiff.
  • the assignment of the sprockets and the support wheels to each other can be chosen fairly freely, in which case there is the advantage that the support wheels may be formed in their contouring on the outer circumference and in their diameter, the support wheels as sprockets.
  • Fig. 8 shows an arrangement in which both the shaft 11 and the shaft 12 are each a wide sprocket 3.12 and a narrow sprocket 3.13 on the one hand and the shaft 12.1 a wide sprocket 4.12 and a narrow sprocket 4.13 is arranged, which in the illustrated Overlap manner, so that the entire width in the overlap area again corresponds to the width of the toothed chain, but on the other hand, the sprockets of both waves in turn have the same width in their supporting width, so that the required torque can be transmitted.
  • FIG. 9 shows a modification of the arrangement according to FIG. 8, in which in each case two equally wide sprockets 3.12, 3.13 or 4.12, 4.13 are arranged on each shaft.
  • toothed chains Another advantage of the toothed chains is that in each case two spaced tabs are formed without tooth profile at each second tab package, so that these tabs in the wrap around the drive chain each lead to both sides of the teeth in the axial direction.
  • arrangement acc. Fig. 8 would correspond to the transverse distance of the two guide plates of the width of the sprocket 3.11, so that in the Umschl Trents Society the teeth of the sprocket 3.11 would be covered on both sides and so the drive chain would be performed in the axial direction on this sprocket 3.11.
  • the axial guidance of the drive chain would in each case take place from the mutually facing sides of the teeth of this sprocket, so that the drive chain is also held on this sprocket in their lane.
  • FIG. 10 shows a modification of the basic arrangement shown in FIG.
  • a slider 17 is provided to reduce the noise, which abuts the chain sprocket 16 connecting the two sprockets 3.1 and 4.1.
  • the chain 16 is slightly deflected, so that the running conditions of the chain on the sprocket 4, in a running direction in the direction of arrow 18, are improved.
  • vibrations of the chain center in the articulation plane are prevented.
  • the friction losses are only slightly increased, since even with high tensile force in the chain necessary for a deflection normal force, which also determines the size of the friction force is very low.
  • This arrangement can be used for all forms of drive chains.
  • the slider 17 may be arranged in roller or sleeve chains between the sprockets and deflect the chain 16 in the opposite direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Dry Shavers And Clippers (AREA)
  • Surgical Instruments (AREA)
EP00991593A 2000-01-05 2000-12-13 Kettentrieb zum antrieb von zwei engstehenden parallelen wellen Expired - Lifetime EP1187970B1 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE10000197 2000-01-05
DE10000197 2000-01-05
DE10023209 2000-05-12
DE10023209 2000-05-12
DE10042041 2000-08-26
DE10042041A DE10042041A1 (de) 2000-01-05 2000-08-26 Kettentrieb zum Antrieb von zwei engstehenden parallelen Wellen
PCT/EP2000/012634 WO2001049977A2 (de) 2000-01-05 2000-12-13 Kettentrieb zum antrieb von zwei engstehenden parallelen wellen

Publications (2)

Publication Number Publication Date
EP1187970A2 EP1187970A2 (de) 2002-03-20
EP1187970B1 true EP1187970B1 (de) 2006-03-01

Family

ID=27213552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00991593A Expired - Lifetime EP1187970B1 (de) 2000-01-05 2000-12-13 Kettentrieb zum antrieb von zwei engstehenden parallelen wellen

Country Status (6)

Country Link
US (1) US6652400B2 (ja)
EP (1) EP1187970B1 (ja)
JP (1) JP4673536B2 (ja)
AT (1) ATE318995T1 (ja)
DE (1) DE50012333D1 (ja)
WO (1) WO2001049977A2 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004316573A (ja) * 2003-04-17 2004-11-11 Tsubakimoto Chain Co エンジン用カム軸駆動装置
JP2006029310A (ja) * 2003-11-25 2006-02-02 Honda Motor Co Ltd 空冷式内燃機関
DE202004018381U1 (de) * 2004-11-26 2006-03-30 Joh. Winklhofer & Söhne GmbH und Co KG Kettentrieb mit Kettenrad und fluchtendem Abstützrad
EP2604720A1 (en) 2011-12-14 2013-06-19 Sandvik Intellectual Property Ab Coated cutting tool and method of manufacturing the same
US8726868B2 (en) 2012-01-16 2014-05-20 Ford Global Technologies, Llc Engine drive system
DE102016113803A1 (de) * 2015-07-28 2017-02-02 Steering Solutions Ip Holding Corporation Riemenscheibenbaugruppe mit leerlaufrolle, kraftunterstützungssystem mit riemenscheibenbaugruppe und verfahren
JP6319218B2 (ja) * 2015-07-29 2018-05-09 マツダ株式会社 エンジンの駆動力伝達システム
JP2017133475A (ja) 2016-01-29 2017-08-03 ヤマハ発動機株式会社 エンジンおよび鞍乗型車両
US11425860B2 (en) * 2019-10-22 2022-08-30 Cnh Industrial America Llc Auger and drive assembly for an agricultural harvester header
DE102022109041A1 (de) 2022-04-13 2023-10-19 Bayerische Motoren Werke Aktiengesellschaft Verbrennungskraftmaschine für ein Kraftfahrzeug, insbesondere für einen Kraftwagen, sowie Kraftfahrzeug

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5655149U (ja) * 1979-10-04 1981-05-14
JPS57210109A (en) 1981-06-19 1982-12-23 Suzuki Motor Co Ltd Engine of double overhead cam type
JPS6091054A (ja) 1983-10-25 1985-05-22 Toyota Motor Corp ベルト式伝動装置
DE3347638A1 (de) 1983-12-30 1985-07-18 Daimler-Benz Ag, 7000 Stuttgart Antrieb fuer zwei im zylinderkopf einer brennkraftmaschine angeordnete nockenwellen mittels eines umschlingungsgetriebes, wie steuerkette oder zahnriemen, von der kurbelwelle aus
JPH0552104A (ja) * 1991-08-22 1993-03-02 Mazda Motor Corp Ｄｏｈｃエンジンのカムシヤフト駆動装置
US5178108A (en) * 1992-05-15 1993-01-12 Ford Motor Company Camshaft drive for an automotive engine
US5427580A (en) * 1992-05-19 1995-06-27 Borg-Warner Automotive, Inc. Phased chain assemblies
JP2587976Y2 (ja) * 1993-06-29 1998-12-24 株式会社椿本チエイン 伝動用単列ローラチェーン

Also Published As

Publication number Publication date
US20020134336A1 (en) 2002-09-26
DE50012333D1 (de) 2006-04-27
JP2003519313A (ja) 2003-06-17
WO2001049977A2 (de) 2001-07-12
WO2001049977A3 (de) 2001-12-13
JP4673536B2 (ja) 2011-04-20
EP1187970A2 (de) 2002-03-20
US6652400B2 (en) 2003-11-25
ATE318995T1 (de) 2006-03-15

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