CN106812811B - transmission shaft structure and transmission shaft - Google Patents
transmission shaft structure and transmission shaft Download PDFInfo
- Publication number
- CN106812811B CN106812811B CN201510843898.3A CN201510843898A CN106812811B CN 106812811 B CN106812811 B CN 106812811B CN 201510843898 A CN201510843898 A CN 201510843898A CN 106812811 B CN106812811 B CN 106812811B
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- CN
- China
- Prior art keywords
- spline
- transmission shaft
- shock
- dust
- bearing
- 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 - Fee Related
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/063—Fixing them on the shaft
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Power Transmission Devices (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
本发明涉及车辆驱动轴技术领域，提供一种传动轴结构，所述传动轴结构包括：轴承，所述轴承的外圈设置有减震支撑装置，所述减震支撑装置能够固定支撑在车体上；花键套，所述花键套通过花键结构装配在所述轴承的内圈内；花键轴，所述花键轴通过键槽结构装配在所述花键套内并能够轴向伸缩，以显著降低或解决传动轴由于质量分配不均匀而引起的旋转不平衡等振动噪声问题，并具有良好的吸能隔振效果，提升传动系统的NVH性能。
The present invention relates to the technical field of vehicle drive shafts, and provides a transmission shaft structure. The transmission shaft structure includes a bearing, an outer ring of the bearing is provided with a shock-absorbing support device, and the shock-absorbing support device can be fixedly supported on a vehicle body. upper; spline sleeve, the spline sleeve is assembled in the inner ring of the bearing through a spline structure; spline shaft, the spline shaft is assembled in the spline sleeve through a keyway structure and can be axially telescopic , in order to significantly reduce or solve the vibration and noise problems such as unbalanced rotation of the transmission shaft caused by uneven mass distribution, and have a good energy absorption and vibration isolation effect to improve the NVH performance of the transmission system.
Description
Technical field
The present invention relates to vehicular transmission shaft technical field, in particular to a kind of transmission shaft structure, and it is a kind of with this biography
The transmission shaft of moving axis structure.
Background technique
Requirement with people to vehicle driving system and NVH performance is higher and higher, each components performance design of vehicle
It is improved constantly being promoted.It is known that transmission shaft is essential components in vehicle driveline.Currently, with
The in due course 4 wheel driven of preposition forerunner or front-engine rear-drive vehicle are more and more, and longitudinal transmission shaft becomes essential zero in torque transmittance process
One of component.
In a kind of existing longitudinal transmission shaft structure, it is, being passed in transmission shaft design of the central siphon length greater than 1.5m
Moving axis is provided with medial support structures.In this transmission shaft structure, it will usually which according to the structure of vehicle, (front-engine rear-drive is preposition
Forerunner's 4 wheel driven) difference at front the latter rear of medial support structures individually sets a flexible spline structure, alternatively, this
The front and back of transmission shaft structure is set with medial support structures.For example, in the transmission shaft of existing preposition forerunner's intelligence 4-wheel driven car,
Design has extension shaft between medial support structures and transfer gear, and between medial support structures and rear primary gearbox is central siphon
Rigid connection, meanwhile, medial support structures can be fixed on body platform or vehicle frame by bolt etc..
However, since flexible spline structure design is in the unilateral side of medial support structures, in this way, will lead to transmission shaft quality not
, and intermediate shaft tube weight increase, centrifugal force and imbalance when increasing rotation, due to generation vibration can not effectively every
From so that transmission shaft causes to vibrate abnormal sound in torque transmittance process.In addition, in vehicle rough ride, rear primary gearbox phase
Relative motion is occurred for medial support structures, since the other side of medial support structures is arranged in the spline structure that stretches,
Rear primary gearbox can only lean on the deflection of gum cover of medial support structures to make up relative to the relative displacements of medial support structures,
This aspect easily causes axial vibration, reduces transmission system NVH performance, on the other hand reduce gum cover endurance quality or even
Lead to gum cover initial failure.
For front-engine rear-drive vehicle, the medial support structures of transmission shaft are arranged in flexible spline structure and rear master subtracts
Between fast device, the principle of work and power is similar to preposition forerunner's vehicle, and this will not be detailed here.
In addition, since each universal joint of transmission shaft has layout angle in entire vehicle design, and stretching in existing structure
Spline structure designs the leading portion or back segment in medial support structures, this will cause the axis and intermediate supports knot of flexible spline structure
There are angles between the axis of structure, radial imbalance force can be generated in torque transmission shaft transmittance process, to medial support structures
Generating vibration influences, and vehicle is easily caused to vibrate, and this main medial support structures by transmission shaft of vibration are with passing to vehicle body
Plate.
Summary of the invention
In view of this, the present invention is directed to propose a kind of transmission shaft structure, to significantly reduce or solve transmission shaft due to quality
The vibration noises problem such as rotation imbalance caused by distribution is uneven, and there is good energy-absorbing vibration isolating effect, promote transmission
The NVH performance of system.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of transmission shaft structure, the transmission shaft structure include: bearing, and the outer ring of the bearing is provided with shock-absorbing support dress
It sets, the shock-absorbing supporting device is capable of fixing support on the car body；Spline housing, the spline housing are assemblied in institute by spline structure
It states in the inner ring of bearing；Splined shaft, the splined shaft are assemblied in the spline housing by keyway arrangements and being capable of axial stretchings.
Compared with the existing technology, transmission shaft structure of the present invention has the advantage that
A component, that is, spline housing due to forming flexible spline structure is assemblied in the inner ring of bearing by spline structure,
And the outer ring of bearing is then provided with shock-absorbing supporting device, shock-absorbing supporting device is capable of fixing in practical set and is supported on car body
On, meanwhile, another component, that is, splined shaft for forming flexible spline structure then passes through keyway arrangements and is assemblied in spline housing simultaneously energy
Enough axial stretchings are arranged in bearing in this way, flexible spline structure of the invention is arranged in the medial support structures of transmission shaft
On shock-absorbing supporting device, in this way, can be significantly reduced or solve transmission shaft due to mass distribution it is uneven caused by rotation
The vibration noises problem such as imbalance, at the same time it can also make full use of medial support structures shock-absorbing supporting device vibration isolation capability,
The flexible resistance of flexible spline structure or rotation out-of-balance force are absorbed, there is good energy-absorbing vibration isolating effect, promoted significantly
The NVH performance of transmission system.
Further, the spline housing can axially be stretched by the spline structure relative to the inner ring of the bearing
Contracting.
Further or selectively, the one end of the spline housing far from the splined shaft is connected with by universal joint flange fork
Cross axle；The one end of the splined shaft far from the spline housing is connected with another described ten by another universal joint flange fork
Word axis.
Further or selectively, the shock-absorbing supporting device includes metal plate cover, the recess portion that the metal plate cover passes through itself
It is assemblied on the outer ring of the bearing, and is arranged between the side of metal plate cover two sides and the outer peripheral surface of the spline housing
There is spline anti-dust seal.
Further, the side of metal plate cover two sides is in the axially extending separate bearing in the two sides of the bearing,
The spline anti-dust seal is arranged on the entire inner surface of the side, and makes the spline anti-dust seal
Between the oil sealing portion of spline housing periphery face contact and the side of the bearing keep interval.
Further or selectively, it is anti-that spline is provided between the shock-absorbing supporting device and the outer peripheral surface of the spline housing
Dirt oil sealing, the spline anti-dust seal are fixedly connected on the outer peripheral surface interference on the shock-absorbing supporting device and with the spline housing
Cooperation.
Further or selectively, the shock-absorbing supporting device includes dust-proof damping gum cover, damping block and bracket, wherein
The dust-proof damping gum cover is assemblied on the outer ring of the bearing by the concave part of itself, and the damping block is arranged in institute
The interior intracavitary of dust-proof damping gum cover is stated, the bracket is arranged on the outer surface of the dust-proof damping gum cover to be capable of fixing support
On the car body.
Further, the dust-proof damping gum cover, the damping block and the bracket vulcanize to form integral structure.
Further or selectively, it is anti-that keyway is provided between the running-on of the spline housing and the outer peripheral surface of the splined shaft
Dirt oil sealing, the keyway anti-dust seal are fixedly connected on the outer peripheral surface mistake on the outer peripheral surface of the spline housing and with the splined shaft
It is full of cooperation.
In addition, the transmission shaft is provided with above-described transmission shaft structure the present invention also provides a kind of transmission shaft.
Since transmission shaft of the invention includes above-described transmission shaft structure, as described above, the transmission shaft and making
It will be significantly improved with the NVH performance of the vehicle of the transmission shaft.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic cross-sectional view of transmission shaft structure provided in an embodiment of the present invention；
Fig. 2 is the partial enlargement diagram in Fig. 1.
Description of symbols:
1- transmission shaft structure, 2- bearing, the outer ring 3-, 4- shock-absorbing supporting device, 5- spline housing, 6- inner ring, 7- splined shaft, 8-
Universal joint flange fork, 9- metal plate cover, 10- spline anti-dust seal, the side 11-, 12- oil sealing portion, the dust-proof damping gum cover of 13-, 14- subtract
Shake block, 15- bracket, the interval 16-, 17- keyway anti-dust seal, 18- cross axle, 19- flange flange.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Figures 1 and 2 show that transmission shaft structure 1 provided in an embodiment of the present invention.As illustrated in fig. 1 and 2, transmission shaft of the invention
Structure 1 includes bearing 2, spline housing 5, splined shaft 7 and shock-absorbing supporting device 4, wherein bearing 2 and shock-absorbing supporting device 4 form
The medial support structures of transmission shaft, and the outer ring 3 of bearing 2 is provided with shock-absorbing supporting device 4, shock-absorbing supporting device 4 is capable of fixing
It supports on the car body, such as on vehicle body or vehicle frame, spline housing 5 is assemblied in the inner ring 6 of bearing 2 by spline structure, for example, flower
Design has involute spline or rectangular spline on the outer peripheral surface of key set 5, and then design has on the inner surface of the inner ring 6 of bearing 2
Matched internal spline；Meanwhile splined shaft 7 be assemblied in spline housing 5 by keyway arrangements and can axial stretching, for example,
Design has internal spline such as rectangular spline or involute spline on the inner peripheral surface of spline housing 5, and designs on the outer peripheral surface of splined shaft 7
There is the external splines for being engaged with cooperation, to realize axial stretching.Certainly, above-mentioned interior external splines can mutually exchange design.
In this way, a component, that is, spline housing 5 due to forming flexible spline structure passes through above-mentioned by the technical solution
Spline structure is assemblied in the inner ring 6 of bearing 2, and the outer ring 3 of bearing 2 is then provided with shock-absorbing supporting device 4, shock-absorbing supporting device
4 are capable of fixing support on the car body in practical set, meanwhile, form another component, that is, splined shaft 7 of flexible spline structure
Then be assemblied in spline housing 5 by above-mentioned keyway arrangements and can axial stretching, in this way, flexible spline structure of the invention is set
Set in the medial support structures of transmission shaft, that is, be arranged on bearing 2 and shock-absorbing supporting device 4, in this way, can be significantly reduced or
Solve the problems, such as transmission shaft due to mass distribution it is uneven caused by the rotation vibration noises such as imbalance, at the same time it can also abundant
It is using the vibration isolation capability of the shock-absorbing supporting device 4 of medial support structures, the flexible resistance of flexible spline structure or rotation is uneven
The power that weighs absorbs, and has good energy-absorbing vibration isolating effect, improves the NVH performance of transmission system significantly.
As the aforementioned, in the prior art, when vehicle rough ride, relative to medial support structures phase occurs for rear primary gearbox
To movement, since the other side of medial support structures is arranged in the spline structure that stretches, rear primary gearbox is propped up relative to centre
The relative displacement of support structure can only lean on the deflection of the gum cover of medial support structures to make up, and this aspect easily causes axial vibration
It is dynamic, transmission system NVH performance is reduced, the endurance quality of gum cover is on the other hand reduced or even leads to gum cover initial failure.Cause
This, thoroughly solves the technical problem, and in transmission shaft structure of the invention, as illustrated in fig. 1 and 2, spline housing 5 passes through above-mentioned flower
Bond structure can relative to 6 axial stretching of inner ring of bearing 2, for example, the internal spline on the inner ring 6 of above-mentioned bearing 2 and
It may be implemented to move axially between involute spline or rectangular spline on spline housing 5, that is, in the further preferred biography of the present invention
In moving axis structure, it is provided with two-way flexible spline structure, flexible spline structure at this time includes between spline housing 5 and inner ring 6
Spline structure, the keyway arrangements before also including splined shaft 7 and spline housing 5 are such in this way, in vehicle motion process
Flexible spline structure can either meet the stroke demand of medial support structures leading portion, can also meet medial support structures back segment
Stroke demand, and stroke length then can according to vehicle demand carry out actual set.Meanwhile the two-way flexible spline knot
Structure is arranged in the medial support structures of transmission shaft, and energy-absorbing vibration isolating effect is good, promotes transmission system NVH performance, also further drops
Weight and cost of low transmission shaft etc..
In addition, on the basis of above, further, or selectively, as illustrated in fig. 1 and 2, transmission shaft of the invention
In structure 1, the one end of spline housing 5 far from splined shaft 7 is connected with cross axle 18 by universal joint flange fork 8, meanwhile, splined shaft 7
One end far from spline housing 5 is connected with another cross axle 18 by another universal joint flange fork 8, and cross axle 18 can be with flange method
Orchid 19 connects, as shown in Figure 1.In this way, since the two sides for the spline structure that stretches are provided with above-mentioned universal joint flange fork 8 and ten
Structure as word axis 18, so as to be propped up by flexible spline structure setting in centre after the completion of transmission shaft layout design
Cooperation in support structure, it is ensured that the axis of flexible spline structure and the axis collinear of medial support structures are effectively prevented from
Stretch in the prior art the setting of spline structure unilateral side when, stretched due to caused by the arrangement of each section of such as cross axle of transmission shaft
There are angles between the axis of spline structure and the axis of medial support structures, and eventually leading to transmission shaft has vibration,
That is imbalance problem.
Certainly, on the basis of above-mentioned, in a kind of preferred structure of transmission shaft structure 1 of the invention, as shown in Fig. 2, subtracting
Shaking support device 4 includes metal plate cover 9, metal plate cover 9 is assemblied on the outer ring 3 of bearing 2 by the recess portion of itself, i.e. metal plate cover 9
Cross-sectional shape is in the U-shaped structure with side 11, which can be interference fitted on the outer ring 3 of bearing 2, and metal plate
It covers and is provided with spline anti-dust seal 10 between the side 11 of 9 two sides and the outer peripheral surface of spline housing 5, which can be with
Vulcanization is on the side of metal plate cover 9 11, to prevent introduced contaminants dust etc. from entering in above-mentioned spline structure.
Further, as shown in Fig. 2, the side 11 of 9 two sides of metal plate cover is in the axially extending separate bearing in the two sides of bearing 2
2, spline anti-dust seal 10 is arranged for example, and vulcanization is on the entire inner surface of side 11, so that it is dust-proof to improve spline
The reliability and stability of oil sealing 10, and make the oil sealing portion 12 with 5 periphery face contact of spline housing of spline anti-dust seal 10
Interval 16 is kept between the side of bearing 2, passes through the interval 16, it can be ensured that spline housing 5 is relative to 6 axial stretching of inner ring
When, oil sealing portion 12 can't have an adverse effect to bearing 2.
In addition, shock-absorbing supporting device 4 may include having metal plate cover 9, at this point, when shock-absorbing support fills on the basis of above
It sets and is provided with spline anti-dust seal 10 between 4 and the outer peripheral surface of spline housing 5, spline anti-dust seal 10 is fixedly connected on shock-absorbing support
On device 4 and when being interference fitted with the outer peripheral surface of spline housing 5, as described above, spline anti-dust seal 10 is arranged in 9 He of metal plate cover
Between spline housing 5.
Certainly, shock-absorbing supporting device 4 of the invention is in the case of being not provided with metal plate cover 9, shock-absorbing supporting device 4 and flower
Spline anti-dust seal 10 also can be set between the outer peripheral surface of key set 5, at this point, spline anti-dust seal 10 is fixedly connected on damping
It is interference fitted in support device 4 and with the outer peripheral surface of spline housing 5.
Further, or selectively, as illustrated in fig. 1 and 2, in a kind of specific structure shape of shock-absorbing supporting device 4
In formula, shock-absorbing supporting device 4 includes dust-proof damping gum cover 13, damping block 14 and bracket 15, wherein dust-proof damping gum cover 13 passes through
The concave part of itself is assemblied on the outer ring 3 of bearing 2, for example, as described above, in the case of with metal plate cover 9, metal plate cover
9 can be interference fitted on outer ring 3 first, and subsequent dust-proof damping gum cover 13 is interference fitted on metal plate cover 9, alternatively, not having
In the case of having metal plate cover 9, dust-proof damping gum cover 13 can be fit directly on the outer ring 3 of bearing 2 by the concave part of itself,
And damping block 14 be arranged in it is intracavitary in dust-proof damping gum cover 13, bracket 15 be arranged on the outer surface of dust-proof damping gum cover 13 with
It is capable of fixing support on the car body, in this way, by the energy-obsorbing and damping of dust-proof damping gum cover 13 and damping block 14, it can be by flexible flower
The flexible resistance or rotation out-of-balance force of bond structure significantly absorb, and provide the NVH performance in torque transmittance process.
Further, for the ease of forming and improve the reliability of damping, it is preferable that dust-proof damping gum cover 13, vibration damping
Block 14 and bracket 15 vulcanization forms integral structure, certainly, this three can also otherwise the connector such as screw and fill
With together.
Certainly, while the spline structure between spline housing 5 and inner ring 6 is provided with spline anti-dust seal 10, such as Fig. 1 institute
Show, keyway anti-dust seal 17 is provided between the running-on of spline housing 5 and the outer peripheral surface of splined shaft 7, and keyway anti-dust seal 17 is fixed
It is connected on the outer peripheral surface of spline housing 5 and is interference fitted with the outer peripheral surface of splined shaft 7, to prevent introduced contaminants or dust from entering.
In addition, the present invention also provides a kind of transmission shafts, wherein the transmission shaft is provided with above-described transmission shaft structure
1。
As described above, transmission shaft structure 1 through the invention, transmission shaft of the invention and the vehicle using the transmission shaft
NVH performance will be significantly improved.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843898.3A CN106812811B (en) | 2015-11-27 | 2015-11-27 | transmission shaft structure and transmission shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510843898.3A CN106812811B (en) | 2015-11-27 | 2015-11-27 | transmission shaft structure and transmission shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106812811A CN106812811A (en) | 2017-06-09 |
| CN106812811B true CN106812811B (en) | 2019-01-04 |
Family
ID=59103606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510843898.3A Expired - Fee Related CN106812811B (en) | 2015-11-27 | 2015-11-27 | transmission shaft structure and transmission shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106812811B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461421A (en) * | 2017-07-13 | 2017-12-12 | 合肥创智汽车技术开发有限公司 | A kind of Universal joint power transmission shaft intermediate supports |
| CN107387454A (en) * | 2017-07-19 | 2017-11-24 | 合肥新沪屏蔽泵有限公司 | Two-way spline thrust bearing |
| CN110107603A (en) * | 2019-05-16 | 2019-08-09 | 万向钱潮传动轴有限公司 | A kind of heavy intermediate bead of integrated bearing inner race |
| CN110107601A (en) * | 2019-05-16 | 2019-08-09 | 万向钱潮传动轴有限公司 | A kind of light-duty intermediate connecting fork of integrated bearing inner race |
| CN111677749A (en) * | 2020-06-30 | 2020-09-18 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Spline positioning double row angular contact ball bearings |
| CN112727904A (en) * | 2021-01-08 | 2021-04-30 | 万向钱潮传动轴有限公司 | Transmission shaft intermediate structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201047408Y (en) * | 2007-05-18 | 2008-04-16 | 许昌远东传动轴股份有限公司 | Sliding sleeve type intermediate support non-constant velocity universal joint transmission shaft assembly structure |
| JP2009192050A (en) * | 2008-02-18 | 2009-08-27 | Toyota Motor Corp | Propeller shaft |
| JP5334780B2 (en) * | 2009-09-29 | 2013-11-06 | 株式会社ショーワ | Shock absorption propeller shaft device for automobile |
| CN201875007U (en) * | 2010-09-29 | 2011-06-22 | 中国第一汽车集团公司 | Novel transmission shaft |
| CN102748404A (en) * | 2012-07-17 | 2012-10-24 | 无锡千里马车业制造有限公司 | Split type drive shaft of tricycle |
| CN204226464U (en) * | 2014-09-29 | 2015-03-25 | 台州钻煌汽车零部件有限公司 | A kind of internal spherical cage with bearing |
-
2015
- 2015-11-27 CN CN201510843898.3A patent/CN106812811B/en not_active Expired - Fee Related
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| CN106812811A (en) | 2017-06-09 |
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