CN206668861U - A kind of damping power transmission shaft for electric automobile - Google Patents
A kind of damping power transmission shaft for electric automobile Download PDFInfo
- Publication number
- CN206668861U CN206668861U CN201720269186.XU CN201720269186U CN206668861U CN 206668861 U CN206668861 U CN 206668861U CN 201720269186 U CN201720269186 U CN 201720269186U CN 206668861 U CN206668861 U CN 206668861U
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- CN
- China
- Prior art keywords
- shaft
- elastic connection
- connection end
- axle
- snakelike
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- 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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Abstract
A kind of damping power transmission shaft for electric automobile, including the first driving shaft flange fork, front propeller shaft, inter-axle shaft, snakelike elastic component, housing, telescopic, second driving shaft flange yoke；First driving shaft flange fork is connected with one end of front propeller shaft by cross axle and needle bearing assembly, the other end of front propeller shaft forms the first elastic connection end, one end of inter-axle shaft forms the second elastic connection end, first elastic connection end passes through snakelike elastic component elastic connection with the second elastic connection end, the other end of inter-axle shaft forms splined shaft, one end of telescopic has the spline housing coordinated with splined shaft, splined shaft is contained in spline housing, and the other end of telescopic is connected with second driving shaft flange yoke by cross axle and needle bearing assembly.Above-mentioned damping power transmission shaft has certain torque reserve, prevents power train from overloading, and has to absorb and vibrates, relaxes impact and reduce the ability of noise, has enough intensity and good dynamic balancing, dismounting, repair, be easy to adjust.
Description
Technical field
A kind of damping power transmission shaft is the utility model is related to, more particularly to a kind of damping power transmission shaft for electric automobile.
Background technology
Truck drive shaft is critical piece of the passing power source to executing agency, motor can be produced when working output torque and
Instantaneous change occurs for revolution, or persistently produces unstable output torque, such as：Motor operating voltage, electric current are unstable, this
Body making material, technique have an error, and running car road conditions are severe, etc., and above-mentioned situation occurs.Automobile is travelling simultaneously
During, power is made up of during power assembly is transferred to back axle or tire through power transmission shaft engine (motor) and gearbox
Noise and vibration can be produced.
Clutch is included in the drivetrain components of conventional internal combustion locomotive, its reverse damping spring energy Change of absorption moment of torsion and
Vibration, while overload protection can be carried out to dynamical system.But pure electric automobile no-clutch device, instantaneous peak value moment of torsion and
Vibration directly acts on back axle and rotor, when back axle or motor failure, it is possible that potential safety hazard.
Utility model content
The purpose of this utility model is to overcome weak point of the prior art, there is provided a kind of use for improving safety in utilization
In the damping power transmission shaft of electric automobile.
The purpose of this utility model is achieved through the following technical solutions：
A kind of damping power transmission shaft for electric automobile, including：First driving shaft flange fork, front propeller shaft, inter-axle shaft,
Snakelike elastic component, housing, telescopic, second driving shaft flange yoke；
The first driving shaft flange fork is connected with one end of the front propeller shaft by cross axle and needle bearing assembly；
The other end of the front propeller shaft forms the first elastic connection end, and the first elastic connection end has with before described
Multiple first double wedges that circular array is set centered on the central axis of power transmission shaft, between adjacent two first double wedges
Interval forms the first teeth groove；
One end of the inter-axle shaft forms the second elastic connection end, and the second elastic connection end has with the rear biography
Multiple second double wedges that circular array is set centered on the central axis of moving axis, between adjacent two second double wedges between
Every forming the second teeth groove；
The first elastic connection end and the second elastic connection end are described by the snakelike elastic component elastic connection
Snakelike elastic component part is arranged in multiple first teeth groove and multiple second teeth groove, the first elastic connection end,
The second elastic connection end and the snakelike elastic component are contained in the housing；
The other end of the inter-axle shaft forms splined shaft, and one end of the telescopic has what is coordinated with the splined shaft
Spline housing, the splined shaft are contained in the spline housing；
The other end of the telescopic is connected with the second driving shaft flange yoke by cross axle and needle bearing assembly.
In one of the embodiments, the snakelike elastic component is spring structure.
In one of the embodiments, the snakelike elastic component is elastic metallic structure.
In one of the embodiments, the housing is the hollow cavity structure of both ends open.
Damping power transmission shaft for electric automobile is by setting the first driving shaft flange fork, front propeller shaft, inter-axle shaft, snake
Shape elastic component, housing, telescopic, second driving shaft flange yoke, the first elastic connection end, the second elastic connection end and snakelike elasticity
Part forms damping device, and the power of motor is passed into wheel together with gearbox, drive axle, automobile is produced driving force, has
Certain torque reserve, prevents power train from overloading, the twisting vibration for the power train that decays, and with absorb vibration, relax impact and
The ability of noise is reduced, has enough intensity and good dynamic balancing, reliable operation, service life length is simple and compact for structure, tears open
Dress, repair, be easy to adjust.
Brief description of the drawings
Fig. 1 is the structure chart of the damping power transmission shaft for electric automobile of the embodiment of the utility model one；
Fig. 2 is the exploded view that front propeller shaft, inter-axle shaft, snakelike elastic component and housing coordinate.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Better embodiment of the present utility model is given in accompanying drawing.But the utility model can come in many different forms
Realize, however it is not limited to embodiments described herein.On the contrary, the purpose for providing these embodiments is to make to this practicality newly
The more thorough and comprehensive that the disclosure of type understands.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " bag
Include the arbitrary and all combination of the Listed Items of one or more correlations.
As shown in figure 1, a kind of damping power transmission shaft 10 for electric automobile, including：First driving shaft flange fork 100, it is preceding
Power transmission shaft 200, inter-axle shaft 300, snakelike elastic component 400, housing 500, telescopic 600, second driving shaft flange yoke 700.
First driving shaft flange fork 100 is connected with one end of front propeller shaft 200 by cross axle and needle bearing assembly.
As shown in Fig. 2 the other end of front propeller shaft 200 forms the first elastic connection end 210, the first elastic connection end 210
With multiple first double wedges 212 that circular array is set centered on the central axis of front propeller shaft 200, adjacent two the
Interval forms the first teeth groove 214 between one double wedge 212.
One end of inter-axle shaft 300 forms the second elastic connection end 310, and the second elastic connection end 310 has transmission later
Multiple second double wedges 312 that circular array is set centered on the central axis of axle 300, adjacent two the second double wedges 312 it
Between interval formed the second teeth groove 314.
First elastic connection end 210 and the second elastic connection end 310 pass through the snakelike elastic connection of elastic component 400, snakelike bullet
The property part of part 400 is arranged in multiple first teeth groove 214 and multiple second teeth groove 314, the first elastic connection end 210, the second bullet
Property connection end 310 and snakelike elastic component 400 are contained in housing 500.Particularly, housing 500 is the hollow cavity of both ends open
Structure, front propeller shaft 200 is arranged in housing 500 so that the first elastic connection end 210 is contained in the hollow cavity, rear transmission
Axle 300 is arranged in housing 500 so that the second elastic connection end 310 is contained in the hollow cavity.
The other end of inter-axle shaft 300 forms splined shaft (not shown), and one end of telescopic 600 has to be coordinated with splined shaft
Spline housing (not shown), splined shaft is contained in spline housing.
The other end of telescopic 600 is connected with second driving shaft flange yoke 700 by cross axle and needle bearing assembly.
In the present embodiment, snakelike elastic component 400 is spring structure.In other embodiments, snakelike elastic component 400 is bullet
Property metal structure.
The operation principle of damping power transmission shaft 10 for electric automobile is illustrated：
The motor output end of electric automobile is connected with the first driving shaft flange fork 100, and motor drives the first driving shaft flange
Fork 100 rotates；
The drive front propeller shaft 200 of first driving shaft flange fork 100 rotates, and front propeller shaft 200 passes through the snakelike band of elastic component 400
Dynamic inter-axle shaft 300 rotates；
Inter-axle shaft 300 drives second driving shaft flange yoke 700 to rotate by telescopic 600；
Second driving shaft flange yoke 700 is rotated by rear-end gear reduction, rear axle differential, semiaxis tire on the drive wheels.
First elastic connection end 210, the second elastic connection end 310 and snakelike elastic component 400 form damping device and housed
In in housing 500, when direct driving motor dynamical system bears normal impact or live load, the first elastic connection end 210, the
The damping device that two elastic connection ends 310 and snakelike elastic component 400 are formed can bear the change of load, and it passes through slack time
Carry out apparatus with shock absorbing, so as to absorb vibration, filter impulsive torque, protect motor and the back axle gear teeth, increase transmission system
Life-span.When back axle or motor break down, load becomes big, now the first elastic connection end 210, the second elastic connection end 310
And the damping device stress increase that snakelike elastic component 400 is formed, when the nominal torque more than damping device, snakelike elastic component 400
Cut, so as to protect the safety of reductor and motor.
Housing 500 is especially provided with, housing 500 wraps up the first elastic connection end 210, the second elastic connection end 310 and snake
The damping device that shape elastic component 400 is formed, to the first elastic connection end 210, the second elastic connection end 310 and snakelike elastic component
400 are effectively protected.In addition, housing 500 is the hollow cavity structure of both ends open, front propeller shaft 200 and inter-axle shaft 300
One end be arranged in housing 500, housing 500 forms support to front propeller shaft 200 and inter-axle shaft 300 so that front propeller shaft 200
And inter-axle shaft 300 can be rotated smoothly.
It should also be noted that such as electric automobile in zero load, can form 5 ° between inter-axle shaft 300 and telescopic 600
The angle of left and right, when electric automobile full load, inter-axle shaft 300 can form 3 ° with telescopic 600 under the Action of Gravity Field of goods
The angle of left and right, understand the change for better conforming to such a angle, be especially provided with telescopic 600.That is, the one of inter-axle shaft 300
End forms splined shaft, and one end of telescopic 600 has the spline housing coordinated with splined shaft, splined shaft mobilizable collecting vertically
In in spline housing.
For electric automobile damping power transmission shaft 10 by set the first driving shaft flange pitch 100, front propeller shaft 200, after
Power transmission shaft 300, snakelike elastic component 400, housing 500, telescopic 600, second driving shaft flange yoke 700, the first elastic connection end
210th, the second elastic connection end 310 and snakelike elastic component 400 form damping device, by motor together with gearbox, drive axle
Power passes to wheel, automobile is produced driving force, has certain torque reserve, prevent power train from overloading, decay power train
Twisting vibration, and with absorbing vibration, relaxing impact and reducing the ability of noise, there is enough intensity and good dynamic balancing,
Reliable operation, service life length is simple and compact for structure, dismounting, repairs, be easy to adjust.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (4)
- A kind of 1. damping power transmission shaft for electric automobile, it is characterised in that including：First driving shaft flange fork, front propeller shaft, Inter-axle shaft, snakelike elastic component, housing, telescopic, second driving shaft flange yoke；The first driving shaft flange fork is connected with one end of the front propeller shaft by cross axle and needle bearing assembly；The other end of the front propeller shaft forms the first elastic connection end, and the first elastic connection end has with the driving front Multiple first double wedges that circular array is set centered on the central axis of axle, it is spaced between adjacent two first double wedges Form the first teeth groove；One end of the inter-axle shaft forms the second elastic connection end, and the second elastic connection end has with the inter-axle shaft Central axis centered on multiple second double wedges for setting of circular array, be spaced shape between adjacent two second double wedges Into the second teeth groove；The first elastic connection end and the second elastic connection end are described snakelike by the snakelike elastic component elastic connection Elastic component part is arranged in multiple first teeth groove and multiple second teeth groove, the first elastic connection end, described Second elastic connection end and the snakelike elastic component are contained in the housing；The other end of the inter-axle shaft forms splined shaft, and one end of the telescopic has the spline coordinated with the splined shaft Set, the splined shaft are contained in the spline housing；The other end of the telescopic is connected with the second driving shaft flange yoke by cross axle and needle bearing assembly.
- 2. the damping power transmission shaft according to claim 1 for electric automobile, it is characterised in that the snakelike elastic component is Spring structure.
- 3. the damping power transmission shaft according to claim 1 for electric automobile, it is characterised in that the snakelike elastic component is Elastic metallic structure.
- 4. the damping power transmission shaft according to claim 1 for electric automobile, it is characterised in that the housing is opened for both ends The hollow cavity structure of mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720269186.XU CN206668861U (en) | 2017-03-17 | 2017-03-17 | A kind of damping power transmission shaft for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720269186.XU CN206668861U (en) | 2017-03-17 | 2017-03-17 | A kind of damping power transmission shaft for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206668861U true CN206668861U (en) | 2017-11-24 |
Family
ID=60376498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720269186.XU Expired - Fee Related CN206668861U (en) | 2017-03-17 | 2017-03-17 | A kind of damping power transmission shaft for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206668861U (en) |
-
2017
- 2017-03-17 CN CN201720269186.XU patent/CN206668861U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20190317 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |