CN101551000A - A drive wheel for combination of traction drive mechanism - Google Patents
A drive wheel for combination of traction drive mechanism Download PDFInfo
- Publication number
- CN101551000A CN101551000A CNA2009101278494A CN200910127849A CN101551000A CN 101551000 A CN101551000 A CN 101551000A CN A2009101278494 A CNA2009101278494 A CN A2009101278494A CN 200910127849 A CN200910127849 A CN 200910127849A CN 101551000 A CN101551000 A CN 101551000A
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- China
- Prior art keywords
- gear ring
- axle
- hub member
- traction drive
- form fit
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Classifications
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- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/30—Chain-wheels
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- 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
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- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/12—Toothed members; Worms with body or rim assembled out of detachable parts
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- 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
- F01L2303/00—Manufacturing of components used in valve arrangements
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- 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
- F01L2800/00—Methods of operation using a variable valve timing mechanism
- F01L2800/17—Maintenance; Servicing
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- 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
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/01—Absolute values
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention relates to a drive wheel for combination of traction drive mechanism, particularly to a control drive for use in for internal combustion engine, has a circulating traction mechanism, a shaft and a drive wheel arranged on shaft. The drive wheel is composed of a gear wheel and a hub part fixed on the shaft, and the like parts. The gear wheel and the hub part can be in collapsible mutual connection. The gear wheel and the hub part have shape co-operating members in zigzag connection, for centering the annular gear wheel in relation to the shaft.
Description
Technical field
The present invention relates to a kind of traction drive, the especially accessory drive of an internal-combustion engine, have one around traction gear, at least one axle and a drive wheel that is arranged on the axle, this drive wheel is constituted by the hub member that a gear ring and is fixed on the axle, and wherein gear ring and hub member removably interconnect.
Background technique
The control of the valve of internal-combustion engine is carried out with an accessory drive in the prior art usually, this accessory drive with bent axle accurate slow down with control under be connected with camshaft.The motion of bent axle meanwhile is delivered on the camshaft driving gear by means of a Quality Initiative or a flute profile band by a crankshaft timing gear.For this reason, camshaft chain or flute profile band are meshed with crankshaft timing gear and camshaft driving gear all the time, and the position, angle of bent axle and camshaft is constant each other, is provided with tension element, for example tensioning rail or hitch roll in accessory drive.For normally used drive wheel in such accessory drive a series of different structural types are arranged.Except the drive wheel of simple integral body, this drive wheel is fixed on the affiliated axle by means of key or press fit, also has whole sprocket wheel, and wheel hub constitutes multiple tooth shape or zigzag fashion in this sprocket wheel.Zu He drive wheel has been well-known in addition, and this drive wheel is made up of with a hub area that is connected with gear ring a gear ring.
Structure by the sprocket wheel of the combination of DE10316608B3 one Quality Initiative drive unit has been well-known, and the biography key plate that gear ring and is fixed on bent axle or the camshaft in this sprocket wheel is connected.The key plate is a spring steel plate, and is connected with gear ring by the spring gripping sleeve.The hub member of one back shaft is arranged in the center of key plate.In addition by the key plate of spring steel manufacturing because its elastic material properties is used for the damping of chain vibration.
The accessory drive of internal-combustion engine is the engine components of a key, these engine components when maintenance work or parts cannot simply be taken apart mutually and be assembled again when replacing.When in work, when flute profile band or Quality Initiative slided on flute profile band drive unit or Quality Initiative drive unit, the control point of valve will be adjusted so.This just causes, and the charge motion of valve and exhaust campaign are no longer consistent with the motion of internal combustion engine, and this may cause breakdown in the motor when the adjustment that surpasses about 8 °.Therefore extremely importantly be the distribution of the drive wheel of camshaft and bent axle can be rebulid or be held carrying out maintenance and repair duration of work driving mechanism on the valve system of itself and the motor that is connected with accessory drive by camshaft on the accessory drive.
New-type internal-combustion engine uses Injection Pump for controlled-ignition engine equally, so that improve toxic emission and engine efficiency.This meanwhile, the energy that pressure is set up is taken from camshaft usually, wherein has only an independent distribution Injection Pump or an a plurality of pump element of distributing to the series connection of each cylinder to be driven according to engine power and number of pistons.In new-type internal-combustion engine except on the original accessory drive and also want the maintenance and repair work of affix Injection Pump the maintenance and repair work in the valve control in addition, because camshaft must often be dismantled, accessory drive must be calibrated at every turn again in this maintenance and repair work.
Summary of the invention
Task of the present invention is, a kind of traction drive is provided, and this traction drive and is avoided the recalibration of traction drive costliness when maintenance and repair are worked, especially keep its position when transmission shaft is dismantled.
This task achieves a solution by having the traction drive that belongs to this class, and the gear ring of the drive wheel of combination and hub member have the form fit element that is cross-linked, so that gear ring centers with respect to axle.The form fit element that is cross-linked on the gear ring and on the hub member make corresponding axle, normally the dismounting of camshaft becomes possibility, with around the gear ring of the drive wheel that is connected of traction gear need not take off from its position traction drive.The hub member that only is fixed on the drive wheel on the axle is removed with axle under situation about safeguarding.Therefore ressemble the axle of pulling down, can recalibrate traction drive.Therefore not only the cost of dismantling of transmission shaft is lowered, and has avoided being used for when assembling the additional process of traction drive or accessory drive calibration.By in the dismounting of the axle of traction drive and the obvious reduction of expense during back to back assembling, the Injection Pump that is connected with accessory drive also can very simply safeguard and replace in case of necessity, therefore can be complementary with the possibility of safeguarding again and replace to the high request of the operational reliability of Injection Pump usually at present.
Suitable manner is that hub member has an end face moulding as the form fit element, the end face moulding make hub member and gear ring corresponding form fit element good and very effectively be connected to become possibility, still part is separated each other easily.In addition, the hub member end face can have one around step, wherein have an interruption as form fit element step.On the end face of hub member, interrupt like this around step the simple project organization of one hub member and form fit element is provided, wherein step not only can be located at the outside of the hub member of common annular, also can be located at the inboard of hub member.Constitute a convex shoulder by step in hub member, this convex shoulder can be used for being adjacent to of gear ring.For the formation of form fit element, step can have one or more interruption protrusion or that fall in around step, yet wherein only allows to give a kind of unique cooperation possibility of the form fit element to gear ring.
One special structural type regulation, hub member is fixed on the axle by means of a key.Key makes hub member be arranged as possibility reliably, accurately on axle.Selectable scheme is that hub member can be fixed on the axle by means of press fit.Except the cheap manufacturing of the more expense of parts, press fit makes and simply is assembled into possibility with respect to key.In addition, hub member also can be utilized press fit that is used for good strength transmission and the pinpoint combination of passing through key.
More favourable mode is that hub member can be used as the extruder member manufacturing.As extruder member manufacturing make the form fit element simple shaping and with respect to the generally speaking expense of traditional cutting hub member cheap create possibility.
One favourable structure regulation, gear ring has an end face moulding as the form fit element.Same in gear ring the end face moulding provide one with the good of the affiliated form fit element of hub member with very effectively be connected.In addition, the gear ring end face can have the projection that one or more stretches out as the form fit element.Although its excellent function of the projection that stretch out the side make the simple project organization of on gear ring form fit element and therefore usually same expense cheap create possibility.
One preferred construction regulation, the protruding looping that stretch out on gear ring the side, raising into that stretch out perhaps a plurality of sides is circular layout.The side projection of on the end face of gear ring, stretching out looping or that be arranged to annular make on hub member projection annular, become possibility by the impregnable support of the rotation of axle.The regional middle gear circle that ties up to drive wheel that links to each other with the project organization of suitable cluster engine does not have hub member can remain unchanged on its position with respect to accessory drive equally, for example is provided with suitable, the complementary external bracing of a projection in this drive wheel.When gear ring continues to be meshed with the traction gear of traction drive, and when gear ring only changes fiddling with respect to the relative position of cluster engine, the axle of pulling down only needs to be installed into when ressembling on the original position with respect to gear ring, need not recalibrate traction drive.Therefore suitable manner is that interconnective form fit element constitutes like this, so that it is merely able to be cross-linked on a position.
The described characteristics combination of claim 8 with claim 6 or 7 described characteristics combination under be independent of in the claim 1 to 5 each and describedly can enjoy protection equally, and can be continued to improve certainly.The projection of stretching out in the side of looping on the end face of gear ring or a plurality of sides projectioies of stretching out that are arranged to annular not only do not rely on the form fit element that is cross-linked of gear ring and hub member nor whole drive wheel or have only gear ring can remain on its tram with respect to traction drive or accessory drive equally when depending on the axle that drive wheel pulled down by the structure of the combination of gear ring and hub member, and need not recalibrate drive unit and make ressembling of axle become possibility.
In addition, a restriction face can lay respectively at the both sides of gear ring, by means of this restriction face gear ring move axially distance the axle of dismounting the time be limited in less than gear ring thickness, preferably less than 3mm.Therefore, in assembling condition, form the axial protection of a gear ring.Restriction face for example can be formed by the lid of chain-wheel box on the one hand, and is formed by cluster engine on the other hand, and they have corresponding moulding respectively.But having the tensioning rail of restriction face of moulding or the use of guide rail for example is feasible equally.Particularly importantly people make every effort to, and restriction face is guided to the side of gear ring as close as possible, as long as this part thing remains in the suitable scope on manufacturing technology and tolerance, and help under disassembly status axially locating reliably.Certainly under the assembling condition of axle, should be noted that enough spacings of restriction face, so that gear ring does not have disadvantageous the contact with this restriction face as far as possible.
In another structure, be provided with a bearing, this bearing radial support gear ring at least when axle is pulled down, and hold it on the removed position.Gear ring remains in its radial position in traction drive or accessory drive when axle is pulled down equally.This bearing is represented a device so, and this device for example is located on the chain drive cover or is located on the cluster engine, and limits or prevent the radially mobility of gear ring.Therefore, the assembling condition undersetting at axle can keep a determining deviation with gear ring.Yet this spacing will keep as much as possible little in rational design and economic scope, so that obtain the good radial location of gear ring or fixing under disassembly status.Can be arranged in as an arc rib on the lid (for example controlling case lid) of traction drive as application examples, the tooth of gear ring in the disassembly status lower support of axle on this arc rib.But radially bearing also can constitute by an axis hole under simple mode, and the form fit member supports of gear ring is in this axis hole.Here especially be suitable for the projection that stretch out the side.The projection that stretch out this side in the preferred construction form can produce by the precision stamping by gear ring, therefore produces groove being on the side on opposite in gear ring.The form fit element has been determined radially mobility at the disassembly status lower tooth wheel rim of axle to the radial spacing of axis hole so.This form fit element can small relatively tolerance be guided on the wall of axis hole when using the precision stamping technology to produce the form fit element, so this form fit element has only a little gap with respect to axis hole when the axle of assembling.This gap is under normal conditions less than 1mm.Because the axle by the traction drive driving is guided by corresponding hole (axis hole) in affiliated housing, in for example cluster engine, this axis hole becomes possibility as the application of the radially bearing of form fit element is feasible by the generally speaking simpler structure of the repeatedly application of parts.
In addition, restriction face can be less than the height H of form fit element to the spacing of gear ring.Except restriction face the axially locating of the disassembly status lower tooth wheel rim of axle can prevent that also the form fit element of gear ring is from radially skidding off the bearing.In addition, restriction face preferably can constitute the end face of supporting ring, the housing (preferably lid) that this supporting ring is arranged in traction drive go up and/or cluster engine on, and extend to coaxially near gear ring with drive shaft axis.
For the cheap manufacturing of expense of drive wheel and therefore same traction drive, gear ring can be used as the manufacturing of precision stamping spare.Manufacturing makes gear ring need not the high finishing of labor-intensive and cost afterwards create possibility in one procedure as precision stamping spare.
One suitable structural type regulation, an end regions of axle constitutes conical for the support of hub member.Constitute conical end regions make the hub member of gradient annular, that have the complementation that constitutes inwall on axle simply packing into and cooperation reliably becomes possibility.In addition, axle can constitute the end of the section of being threaded, and is provided with a spindle nut, and wherein spindle nut can be tightened on the thread section, so that gear ring is arranged with respect to axle by means of form fit element and the hub member that is fixed on the axle.Especially make for sprocket member firmly is packed together to possibility in the strength transmission that is cross-linked reliably and connects for power transmission of the form fit element of location hub member on the axle and gear ring between gear ring and hub member at the spindle nut of firmly tightening on the screw thread with the conical end zone of axle, so the shearing of form fit element is lowered.For the accurate location of hub member, the tapered end zone can additionally have a key, and this key is embedded in the inner circumference of annular wheel hub spare in the corresponding keyway.
In addition, the present invention relates to a kind of sprocket wheel of combination of the traction drive that belongs to this class, comprise a gear ring and the hub member that can on the axle of accessory drive, fix, wherein gear ring and hub member removably interconnect, and have the form fit element that is cross-linked, so that gear ring is fixed with respect to axle by means of hub member.
Description of drawings
Preferred construction form of the present invention describes in detail by means of accompanying drawing.Wherein:
Fig. 1 represents is to have the sectional view according to the part of traction drive of the present invention of passing through according to drive wheel of the present invention according to first kind of structural type,
Fig. 2 a represents is the perspective exploded view of drive wheel of combination of plan view that has the form fit element of hub member,
Fig. 2 b represents is perspective exploded view by the drive wheel of the combination of the plan view of the form fit element that has gear ring shown in Fig. 2 a,
Fig. 2 c represents is perspective view by the drive wheel of the assembling shown in Fig. 2 b,
What Fig. 3 represented is the side view of the part of traction drive when the traction drive lid of opening, and
Fig. 4 represents is the sectional view of the amplification cut open along line IV-IV.
Embodiment
Fig. 1 represents is partial enlarged drawing according to traction drive of the present invention, here be the Quality Initiative transmission of an internal-combustion engine, wherein in the partial enlarged drawing of cluster engine 3 and control case lid 4, only can see the layout of the sprocket wheel 1 that is contained in the combination on the transmission shaft 2.In addition, the tooth portion of sprocket wheel 1 is meshed with Quality Initiative 5.Though constituting according to traction drive of the present invention of expression here has the controlling and driving chain that drive wheel is meshed with Quality Initiative 5, have the flute profile band drive unit that the flute profile band is meshed with corresponding flute profile belt wheel yet under same mode, also can constitute.
Corresponding to the conical inwall 11 of hub member 7, the end regions of axle 2 also constitutes taper shape, so that supporting wheel hub spare 7.Be provided with a key 14 in this conical zone of external transmission shaft 2 formations, in the keyway 12 of fixing this key embedding inwall 11 for hub member 7.Gear ring 6 end faces be close to securely and the antitorque conical end regions that is contained in axle 2 with changeing on hub member 7 on, wherein projection 9 embeddings of gear ring 6 are located in the step 8 on the excircle of hub member 7.In addition, gear ring 6 compresses hub member 7 securely by means of a spindle nut 15 and a pressure disc 17, and this spindle nut is tightened on the thread section 16 in the end of axle 2.
The hub member 7 of looping is supported in the hole 18 of a corresponding cluster engine 3 on its outer wall, and the very little gap of residue as far as possible only between the inwall in the outer wall of hub member 7 and hole 18 wherein is so that minimize the leakage of engine oil.Outer wall with hub member 7 is the same, the projection 9 that end face stretches out from gear ring 6 also is supported in the hole 18 with a very little gap, and gear ring 6 own sides stretch out above hole 18, and make the engagement of tooth portion 13 and the Quality Initiative 5 beyond hole 18 become possibility.
In order at control case lid 4 through hole 19 to be arranged from the outside to spindle nut 15 easy dismounting, this through hole extends on the end face of the gear ring 6 that is in hub member 7 opposites for the sealing of control box always.Through hole 19 can be closed with a cap seal from outside under running state.Selectable scheme is that the control case lid also can constitute sealing ground, so it must be removed when axle 2 dismountings from cluster engine 3.
Not only control case lid 4 but also cluster engine 3 and have a hollow cylindrical projection 4.1,3.1 of stretching out along the direction of gear ring 6 respectively.Gear ring 6 is arranged between the end face 4.2 and 3.2 of projection 3.1 and 4.1.A small gap is in respectively between end face 4.2 and the gear ring 6 and between end face 3.2 and gear ring 6 in the mounting point.This gap is selected like this, so that considering under the economic suitable tolerance when gear ring 6 operation and do not contact with end face 4.2 and 3.2.Preferably, this gap is respectively less than 1mm (promptly less than the thickness of gear ring and preferably less than 3mm).
Fig. 2 a has represented that one has the perspective exploded view according to sprocket wheel 1 of the present invention to the plan view of the end surface shape mating member of hub member 7.The step 8 that is arranged in end face in this diagram on the excircle of hub member 7 can be seen to such an extent that be perfectly clear.Top bar and 8 be interrupted by positioning convex 20 in the side of the keyway 12 in the inwall 11 of hub member 7 dorsad.Not only the end face of outer wall but also hub member 7 constitutes no step ground in the zone of positioning convex 20.The ear end face of the gear ring 6 of hub member 7 can be seen equally and has groove 10 dorsad in this diagram.Seven grooves 10 circularize round the intermediate hole 21 of gear ring 6 and arrange wherein do not have groove in the zone of corresponding positioning convex 20 in addition.
Fig. 2 b has represented that one has the perspective exploded view to the plan view of the end surface shape mating member of gear ring 6.Can be clear that once more that on hub member 7 inwall 11 has keyway 12 and step 8 also has positioning convex 20.21 circularize layout in seven projectioies 9 on the end face of the gear ring 6 of hub member 7 round the hole, wherein in the zone of the positioning convex 20 of hub member 7, do not have projection to constitute.
Fig. 2 c represented one by in the diagram shown in Fig. 2 b at the similar perspective view of assembling condition lower sprocket 1.Can be clear that meanwhile the positioning convex 20 of hub member 7 is arranged in the zone that does not have projection here between two adjacent projectioies 9.The projectioies 9 that circularize 21 distributions round the hole all are supported on the end face step 8 of hub member 7.The end face of hub member 7 directly is close on the end face of gear ring 6 in addition.
In addition, the mode of action and the assembling according to traction drive of the present invention and drive wheel will elaborate.
When assembling the first time of dimeric sprocket wheel 1, hub member 7 is assembled on the tapered end section of bent axle transmission shaft 2, that be generally the control transmission device with the gear ring 6 that embeds end face step 8 by means of projection 9, and is tightened on the transmission shaft 2 by pressure disc 17 and spindle nut 15.Meanwhile, annular wheel hub spare 7 is pressed on the tapered end zone of axle securely by conical inboard wall 11, and the layout of key 14 in keyway 12 that wherein is connected with axle 2 fixed the position of hub member 7 with respect to axle 2.The gear ring 6 of tightening by spindle nut 15 also is pressed on the hub member 7 securely, therefore from Quality Initiative 5 to transmission shaft on 2 the transmission of power be connected realization by the power transmission of gear ring 6 and hub member 7 basically.
For the maintenance or the replacement of valve mechanism or Injection Pump parts, spindle nut 15 is screwed down by the thread section from axle 2 ends when axle 2 dismountings.In addition, the housing of control chain needn't be opened again when being provided with through hole 19 on control case lid 4.Backing out rear axle 2 at spindle nut 15 can be removed with the hub member 7 that compresses, and gear ring 6 remains unchanged on its position.Do not have hub member 7 gear rings 6 by 21 projectioies 9 that circularize layout are held round the hole, this projection is supported in the cluster engine 3 on the inwall in hole 18 with its outside.Therefore Quality Initiative 5 tooth portions 13 same and gear ring 6 keep engagement when axle 2 is pulled down.Because projection 4.1 and 3.1 gear rings 6 are limited along its axial mobility, provide one axially to ensure thus, and projection 9 remains unchanged within hole 18, therefore radial position obtains enough guarantees equally, and gear ring 6 remains unchanged on the position at it when axle 2 is pulled down equally basically.In any case therefore the gap between gear ring 6 and end face 4.2 is less than the height of projection 9.
The structure according to the drive wheel 1 of traction drive of the present invention or accessory drive or combination that is used for such drive unit makes spools 2 the dismounting that is connected with drive wheel for maintenance and repair work become possibility, and need not dismantle traction drive or accessory drive.This form fit element that is cross-linked by hub member 7 and gear ring 6 becomes possibility, wherein in cluster engine 3 the suitable arrangement of the projection 9 of corresponding hole 18 middle gear circles 6 and in guard box or control case lid 4 through hole 19 guide to the positioning device that gear ring 6 places make gear ring 6 to add always and in traction drive, remain on its radial and axial position.Therefore, the axle of pulling down can be reinstalled without the recalibration that the angle of traction drive or accessory drive, for example bent axle and camshaft is arranged.
Describe second kind of structural type of the present invention in detail by means of Fig. 3 and Fig. 4 below.Only inquire into the main distinction below with respect to the embodiment of front.Therefore use same reference character for the 26S Proteasome Structure and Function components identical, and relevant therewith consult top explanation.Owing to the reason of simplifying is not drawn at Fig. 3 axis 2 and key 14.
The main distinction is that control case lid 4 and cluster engine 3 all do not have the projection that itself axially extends along the direction of gear ring 6.The axial protection of gear ring 6 realizes by means of a guide plate 22 that is close on the Quality Initiative 5 together with Quality Initiative 5.Guide plate 22 has with Quality Initiative 5 and at the side plate 23 of top and gear ring 6 overlap joints towards the end sides of gear ring 6 at it.The width of the inside gap ratio Quality Initiative 5 of two side plates 23 is more bigger, so Quality Initiative do not contact with side plate 23 when normal operation, but enough axial position guarantees are provided when axle 2 is pulled down.Restriction face forms by the inboard of side plate 23 so.
In addition, the rib 24 that centers of arc trend is positioned on the control case lid 4.The arc of rib 24 of centering is centered close on the axis A.Center the inboard of rib 24 normal in service with the spacing location small with respect to the tooth top of gear ring 6.Therebetween gap is under the framework of the suitable tolerance of economy and in view of the dismounting of pending axle 2 and the practicability selection of assembly process.When axle 2 is pulled down, the gear top is close on the inboard of the rib 24 that centers, therefore obtain the radial location of gear ring 6, this location and have only small difference (depending on the gap between the tooth of centering rib 24 and gear ring 6) in normal operating position.This can be regarded as itself, and the rib 24 that centers also can be arranged on the cluster engine 3.Location in removed position is selected like this, so that axle 2 can be inserted in the hole 21 of gear ring 6 without a doubt again, and is centered by the projection on gear ring 69 at the step on the hub member 78.
Claims (14)
1. traction drive, especially the accessory drive of internal-combustion engine, have one around traction gear (5), at least one axle (2) and one is arranged in the drive wheel (1) on the axle, drive wheel (1) is constituted by the hub member (7) that a gear ring (6) and is fixed on the axle (2), wherein gear ring (6) and hub member (7) removably interconnect, and has a form fit element that is cross-linked, so that gear ring (6) centers with respect to axle (2), it is characterized in that, be provided with a bearing, this bearing is at axle (2) radial support gear ring (6) at least when pulling down, and holds it on the removed position.
2. traction drive according to claim 1 is characterized in that, hub member (7) has an end face moulding as the form fit element.
3. traction drive according to claim 1 is characterized in that, hub member (7) end face have one around step (8), wherein have one and interrupt (20) as form fit element step (8).
4. traction drive according to claim 1 is characterized in that, hub member (7) is fixed on the axle (2) by means of a key (14) and/or by means of press fit.
5. traction drive according to claim 1 is characterized in that, gear ring (6) has an end face moulding as the form fit element.
6. traction drive according to claim 5 is characterized in that, gear ring (6) end face has the projection (9) of stretching out one or more side as the form fit element.
7. traction drive according to claim 6 is characterized in that, the projection that stretch out the side (9) looping, and the projection (9) that stretch out perhaps a plurality of sides is arranged to annular.
8. traction drive according to claim 1, it is characterized in that, on the both sides of gear ring (6), be respectively equipped with a restriction face (3.2,4.2), by means of this restriction face gear ring (6) move axially the distance axle (2) be limited in when pulling down less than gear ring thickness, preferably less than 3mm.
9. traction drive according to claim 8 is characterized in that, restriction face (3.2,4.2) arrives the height (H) of the spacing of gear ring (6) less than the form fit element.
10. traction drive according to claim 1 is characterized in that, bearing constitutes axis hole (18), and the form fit member supports of gear ring (6) is in this axis hole.
11. traction drive according to claim 1 is characterized in that, gear ring (6) is used as the manufacturing of precision stamping spare.
12. traction drive according to claim 1 is characterized in that, an end regions of axle (2) constitutes conical for the support of hub member (7).
13. traction drive according to claim 1, it is characterized in that, one end of axle (2) constitutes with thread section (16), and be provided with a spindle nut (15), wherein spindle nut (15) can be tightened on the thread section (16), so that gear ring (6) is fixing with respect to axle (2) with the hub member (7) that is fixed on the axle (2) by means of the form fit element.
14. drive wheel (1) according to the combination of each described traction drive in the claim 1 to 13, comprise that a gear ring (6) and can be in the upward fixing hub member (7) of the axle (2) of traction drive, wherein gear ring (6) and hub member (7) removably interconnect, it is characterized in that, gear ring (6) and hub member (7) have the form fit element that is cross-linked, so that gear ring (6) is fixing with respect to axle (2) by means of hub member (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008017046.1 | 2008-04-03 | ||
| DE102008017046.1A DE102008017046B4 (en) | 2008-04-03 | 2008-04-03 | Multi-part drive wheel for a traction drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101551000A true CN101551000A (en) | 2009-10-07 |
| CN101551000B CN101551000B (en) | 2013-09-18 |
Family
ID=41051385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101278494A Expired - Fee Related CN101551000B (en) | 2008-04-03 | 2009-04-02 | A drive wheel for combination of traction drive mechanism |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101551000B (en) |
| DE (1) | DE102008017046B4 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575533A (en) * | 2010-08-06 | 2012-07-11 | 丰田自动车株式会社 | Cam sprocket and method for manufacturing the same |
| CN103016005A (en) * | 2012-12-11 | 2013-04-03 | 三一重型装备有限公司 | Driven wheel device and roadheader shovel plate part structure with same |
| CN103376335A (en) * | 2012-04-28 | 2013-10-30 | 光阳工业股份有限公司 | Vehicle velocity sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987006863A1 (en) * | 1986-05-16 | 1987-11-19 | Nilsen Sintered Products (Australia) Pty Ltd | Method of making multi-chain sprockets |
| DE19617382A1 (en) * | 1995-05-09 | 1996-11-14 | Borg Warner Automotive | Vibration damper |
| US5816968A (en) * | 1996-01-31 | 1998-10-06 | Borg-Warner Automotive, Inc. | Idler sprocket assembly for a phased chain system |
| DE19906003A1 (en) * | 1999-02-15 | 2000-08-17 | Schaeffler Waelzlager Ohg | Chain wheel for IC engines has noise and vibration damper plug located on either side of chain wheel and outside range of chain |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2529262B2 (en) * | 1987-05-21 | 1996-08-28 | 株式会社シマノ | Bicycle drive gear |
| DE3942761A1 (en) * | 1989-12-23 | 1991-08-14 | Daimler Benz Ag | Sprocket of chain drive for IC engine - consists of a damping ring with outer toothed rim and hub |
| DE19503105C1 (en) * | 1995-02-01 | 1996-04-04 | Contitech Antriebssysteme Gmbh | Timing drive housing for IC engine |
| DE10219831A1 (en) * | 2002-05-03 | 2003-11-20 | Daimler Chrysler Ag | Chain wheel with gear rim fitted with radial and axial play between centering flange and centering plate, for acoustic de-coupling of rim from hub |
| DE10316608B3 (en) * | 2003-04-11 | 2004-10-14 | Audi Ag | Sprocket for chain drive between crankshaft and camshaft has carrier plate made of spring steel |
-
2008
- 2008-04-03 DE DE102008017046.1A patent/DE102008017046B4/en not_active Expired - Fee Related
-
2009
- 2009-04-02 CN CN2009101278494A patent/CN101551000B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987006863A1 (en) * | 1986-05-16 | 1987-11-19 | Nilsen Sintered Products (Australia) Pty Ltd | Method of making multi-chain sprockets |
| DE19617382A1 (en) * | 1995-05-09 | 1996-11-14 | Borg Warner Automotive | Vibration damper |
| US5816968A (en) * | 1996-01-31 | 1998-10-06 | Borg-Warner Automotive, Inc. | Idler sprocket assembly for a phased chain system |
| DE19906003A1 (en) * | 1999-02-15 | 2000-08-17 | Schaeffler Waelzlager Ohg | Chain wheel for IC engines has noise and vibration damper plug located on either side of chain wheel and outside range of chain |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575533A (en) * | 2010-08-06 | 2012-07-11 | 丰田自动车株式会社 | Cam sprocket and method for manufacturing the same |
| CN102575533B (en) * | 2010-08-06 | 2015-01-21 | 丰田自动车株式会社 | Cam sprocket and method for manufacturing the same |
| CN103376335A (en) * | 2012-04-28 | 2013-10-30 | 光阳工业股份有限公司 | Vehicle velocity sensor |
| CN103016005A (en) * | 2012-12-11 | 2013-04-03 | 三一重型装备有限公司 | Driven wheel device and roadheader shovel plate part structure with same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008017046B4 (en) | 2021-04-22 |
| CN101551000B (en) | 2013-09-18 |
| DE102008017046A1 (en) | 2009-10-08 |
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