CN205937638U - A silence chain for CVT gearbox - Google Patents
A silence chain for CVT gearbox Download PDFInfo
- Publication number
- CN205937638U CN205937638U CN201620869885.3U CN201620869885U CN205937638U CN 205937638 U CN205937638 U CN 205937638U CN 201620869885 U CN201620869885 U CN 201620869885U CN 205937638 U CN205937638 U CN 205937638U
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- China
- Prior art keywords
- bearing pin
- chain
- arc surface
- bending
- round pin
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Abstract
The utility model relates to a silence chain for CVT gearbox, including link joint, crooked round pin axle and short round pin axle, be equipped with the through -hole on the link joint, alternate respectively at both ends in the through -hole has a set of round pin axle, and every group round pin axle is including a crooked round pin axle and short sells spool, crooked round pin axle and the laminating each other of short round pin axle, and the side of laminating one side forms rolling the face, the one end of crooked round pin axle is buckled, the both ends of crooked round pin axle all have the arc surface, and the inclination of the arc surface of end of buckling of crooked round pin axle be 17~23, and the inclination of the arc surface of the straight end of crooked round pin axle be 1~3, is the curvature radius of the arc surface held of just buckling 100 170mm, is the curvature radius of the arc surface of straight end 150 200mm. The utility model discloses the beneficial effect that the noise is little, can reduce the CVT gearbox volume has.
Description
Technical field
This utility model belongs to driving-chain field, more particularly, to a kind of quiet chain for CVT change speed gear box.
Background technology
All the time, the key component of known CVT transmission is chain or steel band, and chain is relative with steel band both sides end face
Centrosymmetry.And chain is one or more carrier bar composition, and its pitch is one or two pitches, through orderly arrangement
The chain length becoming, and then mate gear ratio and the centre-to-centre spacing of change speed gear box.Bearing pin is the purpose bearing pin of not rounded, the positioning with carrier bar
Hole side positions, and each carrier bar in the hole has four bearing pins, two one group, formed two bearing pins to rolling hinges, thus reaching resistance to
Mill and the effect of noise.Bearing pin both ends of the surface are symmetrical cambered surface, and cambered surface and cone disk carry out frictional drive, and cone disk has four, and two are moved
Disk and two price fixings, respectively in transmission input shaft two, output shaft two, the Moving plate of input shaft and the price fixing of output shaft are same
Side.By changing the distance of two cone disks, adjusting chain around the radius of circle, thus reaching change gear ratio, realizing speed change
Effect.And the advantage of this kind of change speed gear box is that gear ratio is stable, manufactures and designs simplicity, but shortcoming is change speed gear box is taken up space relatively
Greatly, ratio coverage is less.
In the car, particularly in new-energy automobile, due to there being automobile engine, change speed gear box is arranged together with motor,
Due to having the presence of motor so that the preferable effect of automobile integral arrangement difficult to reach, traditional infinitely variable transmission cannot be expired
Foot uses.As described above, silencing chain is due to only one of which hole in carrier bar, and respectively join at the two ends of length direction in an in the hole
Put two bearing pins, and bearing pin length is same.And the large end face of two bearing pins places back-to-back, produce when chain rotates to rolling effect
Really, so play reduce abrasion effect.And bearing pin both sides end surface symmetric is so that when buncher gear ratio changes, chain
The deflection of bar increases, and increased the abrasion between chain pair, reduces the transmission efficiency of variator.
Utility model content
In order to solve above-mentioned technical problem, the purpose of this utility model is that offer is a kind of quiet for CVT change speed gear box
Chain, this chain noise is little and can reduce CVT change speed gear box volume.
To achieve these goals, this utility model employs following technical scheme：
A kind of quiet chain for CVT change speed gear box, including carrier bar, bending bearing pin and short pin shaft, described carrier bar is provided with logical
Hole, the two ends in described through hole have been respectively interposed one group of bearing pin, and every group of bearing pin includes a bending bearing pin and a short pin shaft, institute
State bending bearing pin and short pin shaft is bonded to each other, and the side of side of fitting forms to rolling face, one end bending of described bending bearing pin,
The two ends of described bending bearing pin are respectively provided with arc surface, and the inclination angle of the arc surface of bending end of bending bearing pin is 17 °～23 °, bending
The inclination angle of the arc surface of the straight end of bearing pin is 1 °～3 °, and the radius of curvature of the arc surface of bending end is 100-170mm, straight end
The radius of curvature of arc surface is 150-200mm.
Preferably：One end of described short pin shaft has arc surface, and the inclination angle of arc surface is 17 °～23 °.
Preferably：The radius of curvature of the circular arc to rolling face of described bending bearing pin and short pin shaft is the section of quiet chain
Away from 0.4-0.8 times, and bend bearing pin sectional area be more than short pin shaft sectional area.
Preferably：The two ends of described bending bearing pin and short pin shaft are also respectively welded backing pin.
This utility model due to employing above technical scheme, its in power transmission process, the inner plate of silencing chain
And bearing pin uniform force, the polygon effect of chain can be reduced, reduce noise.The mantle disk of change speed gear box is same simultaneously
Side, due in Moving plate side bearing pin head-bent, can making the height of chain and chain-plate reduce, reducing the weight of chain, simultaneously speed change
Increase by more than 10% than scope, reduce complete-vehicle oil consumption.Chain deflection reduces, and reduces the internal friction of chain, improves speed change
The transmission efficiency of case, and bore the homonymy arrangement of disk, the volume and weight of the change speed gear box greatly reducing so that this change speed gear box should
With more flexibly extensive.
Brief description
Fig. 1 is the structural representation using change speed gear box of the present utility model.
Fig. 2 is the side structure schematic diagram using change speed gear box of the present utility model.
Fig. 3 is the top surface structure schematic diagram of this utility model silencing chain.
Fig. 4 is the side structure schematic diagram of this utility model silencing chain.
Fig. 5 is the cross-sectional view of this utility model silencing chain.
Fig. 6 is the structural representation that this utility model bends bearing pin.
Fig. 7 is the structural representation of this utility model short pin shaft.
Fig. 8 is the structural representation of this utility model carrier bar.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of described embodiment is shown in the drawings, wherein ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Below by ginseng
The embodiment examining Description of Drawings is exemplary it is intended to be used for explaining this utility model, and it is not intended that to this utility model
Restriction.
In description of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " up time
The orientation of instruction such as pin ", " counterclockwise " or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of
Description this utility model and simplify description, rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In description of the present utility model, unless otherwise stated, the implication of " multiple "
It is two or more, limit unless otherwise clear and definite.
In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in this utility model.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
D score can include the first and second feature directly contacts it is also possible to include the first and second features not to be directly contact but logical
Cross the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or to be merely representative of fisrt feature level height be higher than second feature.First is special
Levy second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or only
Represent that fisrt feature level height is less than second feature.
A kind of Novel CVT change speed gear box as Figure 1-Figure 8, including drivewheel Moving plate 1, drivewheel price fixing 3, driven moves in turn
Disk 2, driven pulley price fixing 4 and quiet chain 5, described quiet chain 5 one end is enclosed between drivewheel Moving plate 1 and drivewheel price fixing 3, another
End is enclosed between driven pulley Moving plate 2 and driven pulley price fixing 4, and described quiet chain 5 includes carrier bar 51, bending bearing pin 521 and short pin shaft
522, described carrier bar 51 is provided with through hole, and the two ends in described through hole have been respectively interposed one group of bearing pin, and every group of bearing pin includes one
Bending bearing pin 521 and a short pin shaft 522, described bending bearing pin 521 and short pin shaft 522 are bonded to each other, and the side of side of fitting
Face forms to rolling face, the bending of one end of described bending bearing pin 521, and bends the two ends of bearing pin 521 and drivewheel Moving plate 1, actively
Wheel price fixing 3 or driven pulley Moving plate 2, driven pulley price fixing 4 are frictional drive, and the two ends of described bending bearing pin 521 are respectively provided with circle
Cambered surface, the inclination angle of the arc surface of bending end 5211 of bending bearing pin 521 is 17 °～23 °, the straight end 5212 of bending bearing pin 521
The inclination angle of arc surface is 1 °～3 °, and the radius of curvature of the arc surface of bending end 5211 is 100-170mm, the circular arc of straight end 5212
The radius of curvature in face is 150-200mm.
One end of described short pin shaft 522 has arc surface, and the inclination angle of arc surface is 17 °～23 °.Described bending bearing pin
521 and the radius of curvature of the circular arc to rolling face of short pin shaft 522 be 0.4-0.8 times of pitch of quiet chain 5, and bending bearing pin
521 sectional area is more than the sectional area of short pin shaft 522.Described drivewheel Moving plate 1 and driven pulley Moving plate 2 are located at the same side.This reality
With new due in chain both sides end face unsymmetric form, and then the driving and driven price fixing of change speed gear box is arranged in homonymy, and then significantly
Reduce overall size, make the lateral dimension of change speed gear box reduce more than 1/3rd, so that automobile engine and change speed gear box
Arrangement more rationalize.
The two ends of described bending bearing pin 521 and short pin shaft 522 are also respectively welded backing pin 53.The frame structure of chain is by pin
On axle, fixing, at its inclination angle, larger direction welding gear pin is larger with the distance of end face, because it is apart from little carrier bar for welding gear pin
Easily write off axle to deviate from so that chain falls apart, cause chain or even whole change speed gear box to damage.Meanwhile, root is also wanted in the position of shelves pin
Height according to carrier bar to determine, the outer eaves both having ensured edge carrier bar, when gear ratio changes, can not be done with cone disk in any position
Relate to.The welding position of short pin shaft will guarantee that it is not contacted with cone disk.
Only play interconnection function with the short pin shaft of bending bearing pin pairing in this utility model, do not contact with cone disk, both solved
Interference problem, solves the mesh impact that two bearing pins in a carrier bar in the hole are led to due to the error in processing again, so
This kind of silencing chain impact noise is less, and efficiency is higher.Pin bent shaft portion is had compared with other types CVT chain with cone disk contact point
Certain amount of moving down, typically up to more than 4mm.Chain and the contact radius of cone disk are reduced, increased Novel CVT nearly 10%
Ratio coverage, reduces the oil consumption of car load.Chain hinge pin bending simultaneously can make the pitch of carrier bar reduce, compared with un-flexed structure chain
Pitch reduces more than 30%.Decrease the weight of chain, the polygon effect of chain can be reduced again, effectively reduce noise,
Improve the comfortableness of car load.
Silencing chain of the present utility model, has two kinds of bearing pins, and in transmission process, two bearing pin arc surfaces do pure rolling, rises
To the effect of pitch variation, reduce vibration and the noise of chain, improve chaindriven efficiency.Because silencing chain bearing pin acts on two
Side asymmetric arrangement is so that the stressing conditions rather harsh of chain, so will consider making a concerted effort of left and right sides pressure in design
In the symmetrical center line of chain and chain-plate, and to be vertically upward, and to be to ensure above-mentioned requirements, the lower end that 1 °～3 ° of bearing pin inclination angle
Contact with cone disk, angle of inclination is that 17 °～23 ° of upper end is contacted with cone disk, so can ensure that variator operates steadily.And
Due to only having a kind of inner plate so that the assembling of this chain greatly simplifies.Because chain flexes bearing pin and cone disk are frictional drive, chain
In transmission process, bending bearing pin and short pin shaft are intended to roll bar, reduce vibration noise.For making chain frame structure stable,
After carrier bar is assembled with bearing pin, bearing pin two ends are fixed using welding backing pin.Preferably, because, in chain drive, pitch is got over
Its polygon effect big accordingly also increases, thus in the selection of chain fine pith carrier bar in whole piece chain it is also possible to select
Two or more pitch carrier bar.
It should be pointed out that above example is only representative example of the present utility model.This utility model can also have many
Deformation.Every any simple modification, equivalent variations and modification above example made according to essence of the present utility model, all
It is considered as belonging to protection domain of the present utility model.
Claims (4)
1. a kind of quiet chain for CVT change speed gear box it is characterised in that：Including carrier bar (51), bending bearing pin (521) and short pin shaft
(522), described carrier bar (51) is provided with through hole, and the two ends in described through hole have been respectively interposed one group of bearing pin, and every group of bearing pin includes
Piece bending bearing pin (521) and a short pin shaft (522), described bending bearing pin (521) and short pin shaft (522) are bonded to each other, and
The side of laminating side forms to rolling face, one end bending of described bending bearing pin (521), the two ends of described bending bearing pin (521)
It is respectively provided with arc surface, the inclination angle of the arc surface of bending end (5211) of bending bearing pin (521) is 17 °～23 °, bends bearing pin
(521) inclination angle of the arc surface of straight end (5212) is 1 °～3 °, and the radius of curvature of the arc surface of bending end (5211) is
100-170mm, the radius of curvature of the arc surface of straight end (5212) is 150-200mm.
2. a kind of quiet chain for CVT change speed gear box according to claim 1 it is characterised in that：Described short pin shaft (522)
One end there is arc surface, and the inclination angle of arc surface be 17 °～23 °.
3. a kind of quiet chain for CVT change speed gear box according to claim 1 it is characterised in that：Described bending bearing pin
And the radius of curvature of the circular arc to rolling face of short pin shaft (522) is 0.4-0.8 times of pitch of quiet chain (5), and bending (521)
The sectional area of bearing pin (521) is more than the sectional area of short pin shaft (522).
4. a kind of quiet chain for CVT change speed gear box according to claim 1 it is characterised in that：Described bending bearing pin
And the two ends of short pin shaft (522) are also respectively welded backing pin (53) (521).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620869885.3U CN205937638U (en) | 2016-08-11 | 2016-08-11 | A silence chain for CVT gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620869885.3U CN205937638U (en) | 2016-08-11 | 2016-08-11 | A silence chain for CVT gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937638U true CN205937638U (en) | 2017-02-08 |
Family
ID=57919922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620869885.3U Withdrawn - After Issue CN205937638U (en) | 2016-08-11 | 2016-08-11 | A silence chain for CVT gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402274A (en) * | 2016-08-11 | 2017-02-15 | 杭州东华链条集团有限公司 | Mute chain for continuously variable transmission (CVT) gearbox |
-
2016
- 2016-08-11 CN CN201620869885.3U patent/CN205937638U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402274A (en) * | 2016-08-11 | 2017-02-15 | 杭州东华链条集团有限公司 | Mute chain for continuously variable transmission (CVT) gearbox |
| CN106402274B (en) * | 2016-08-11 | 2018-07-06 | 杭州东华链条集团有限公司 | A kind of mute chain for CVT gearboxes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20180706 |
|
| AV01 | Patent right actively abandoned |