CN207111746U - A kind of New energy automobile motor axle of band positioning - Google Patents
A kind of New energy automobile motor axle of band positioning Download PDFInfo
- Publication number
- CN207111746U CN207111746U CN201720770837.3U CN201720770837U CN207111746U CN 207111746 U CN207111746 U CN 207111746U CN 201720770837 U CN201720770837 U CN 201720770837U CN 207111746 U CN207111746 U CN 207111746U
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- axle
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- axis hole
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- shaft
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Abstract
The utility model is a kind of New energy automobile motor axle of band positioning, including power transmission shaft, and it is connected to the connecting shaft on the right side of power transmission shaft, the connecting shaft outer surface is provided with keyway, axle tail is connected with the right side of connecting shaft, the outer surface of axle tail is provided with guide groove, the right surface of axle tail is provided with fixing hole, the connecting shaft is internally provided with axis hole, axis hole runs through axle tail surface, the inner surface setting of the axis hole has internal spline, the internal spline is rectangle internal spline, positioning hole is provided with the left of the axis hole, positioning hole is connected with axis hole, and the center line of positioning hole and the center line of axis hole are located at same center line；The New energy automobile motor axle of band positioning changes the shortcomings that conventional motor axle torsion transmission efficiency is low, and transmission is easily worn with spline, and service life is short, has effectively ensured the Stability and dependability of moment of torsion transmission, has improved the using effect of motor shaft.
Description
Technical field
It the utility model is related to a kind of electric motor of automobile axle, and in particular to a kind of New energy automobile motor axle of band positioning.
Background technology
Electric motor of automobile axle is a kind of bearing rod for being transmitted torsion, and existing electric motor of automobile axle uses mostly at present
Spline input is transmitted, and the front end of spline does not have positioning function so that spline pole during torsion is transmitted
Easily there is abrasion condition, reduced so as to cause motor shaft to transmit the efficiency of torsion, and decrease the service life of motor shaft,
Influence the using effect of motor shaft.
Utility model content
The utility model mainly solves the technical problem present in prior art, so as to provide a kind of effectively reduction motor shaft
The abrasion of spline, increase the transmission efficiency of motor shaft moment of torsion, extend the service life of motor shaft, effectively improve user to motor
The New energy automobile motor axle of the band positioning of axle using effect.
The utility model is a kind of New energy automobile motor axle of band positioning, including power transmission shaft, and is connected to the power transmission shaft right side
The connecting shaft of side, the connecting shaft outer surface are provided with keyway, and axle tail is connected with the right side of connecting shaft, and the outer surface of axle tail is set
There is guide groove, the right surface of axle tail is provided with fixing hole, and the connecting shaft is internally provided with axis hole, and axis hole runs through axle tail
Surface, the inner surface setting of the axis hole have internal spline, and the internal spline is rectangle internal spline, is provided with the left of the axis hole
Positioning hole.
Preferably, the left end of the power transmission shaft is connected with shaft end, the left outer surface of power transmission shaft is provided with annular knurl, and passes
Moving axis, shaft end, connecting shaft and axle tail are integral type structure, are easy to the producer to manufacture the electric motor of automobile axle, and carry
The using effect of the high motor shaft.
Preferably, the fixing hole on the right surface of axle tail is provided with two or more, and fixing hole is screwed hole, is easy to give birth to
Other motor shafts are connected by production person with axle tail, and are attached fixation by fixing hole, and improve the electric motor of automobile axle to turning round
The stability of power transmission.
Preferably, the guide groove of the axle tail outer surface runs through the right surface of axle tail, and guide groove is U-type groove, is passed through
The setting of guide groove improves the connection accuracy of other motor shafts and the electric motor of automobile axle, is easy to other motor shafts and automobile electricity
Arbor is connected.
Preferably, the aperture of the positioning hole is less than the aperture of axis hole, and the left end of positioning hole is pyramidal structure, convenient
The torsion transmission lever of other motor shafts enters axis hole and coordinated with the internal spline of axis hole inner surface.
Preferably, the positioning hole is connected with axis hole, and the center line of the center line of positioning hole and axis hole is positioned at same
One straight line, effectively raise the stability of other motor shaft torsion transmission and the efficiency of torsion transmission.
The beneficial effects of the utility model are：The New energy automobile motor axle is changed in conventional motor shaft and can only led to
The design method that spline carries out torsion transmission is crossed, so that the problems such as spline easily wears, torsion transmission efficiency is low；Due to
Shaft bore surface is provided with internal spline inside connecting shaft, and internal spline is rectangle internal spline so that other motor shafts can be by interior
Torsion is delivered to connecting shaft by spline, and is ground by the setting reduction internal spline of rectangle internal spline during torsion transmission
Damage, so as to effectively extend the service life of shaft bore surface internal spline；And the left end of axis hole is provided with positioning hole, positioning hole and axle
Hole is connected, and the left end of positioning hole is pyramidal structure, and the center line of positioning hole and the center line of axis hole are located at same straight line so that
Other motor shafts can be accurately positioned when entering and being coordinated in axis hole with internal spline by positioning hole, avoid interior flower
Key because cooperation there is deviation and caused by internal spline wear problem, effectively improve transmission efficiency of the internal spline to torsion, also further
Reduction internal spline the rate of wear, so as to extend the service life of the New energy automobile motor axle.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of overall structure diagram of the New energy automobile motor axle of band positioning of the utility model；
Fig. 2 is a kind of overall structure sectional view of the New energy automobile motor axle of band positioning of the utility model；
Fig. 3 is the sectional view of A-A in Fig. 2；
Fig. 4 be in Fig. 2 B to plan view.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model
Define.
A kind of New energy automobile motor axle of band positioning as shown in Figures 1 to 4, including power transmission shaft 1, and it is connected to transmission
The connecting shaft 2 on the right side of axle 1, the outer surface of connecting shaft 2 are provided with keyway 21, and the right side of connecting shaft 2 is connected with axle tail 3, axle tail 3
Outer surface be provided with guide groove 31, the right surface of axle tail 3 is provided with fixing hole 32, and the connecting shaft 2 is internally provided with axle
Hole 22, axis hole 22 run through the surface of axle tail 3, and the inner surface setting of the axis hole 22 has internal spline 23, and the internal spline 23 is
Rectangle internal spline, the left side of the axis hole 22 are provided with positioning hole 24.
The left end of the power transmission shaft 1 is connected with shaft end 12, and the left outer surface of power transmission shaft 1 is provided with annular knurl 11, and is driven
Axle 1, shaft end 12, connecting shaft 2 and axle tail 3 are integral type structure, are easy to the producer to manufacture the electric motor of automobile axle, and
Improve the using effect of the motor shaft.
The fixing hole 32 on the 3 right surface of axle tail is provided with two or more, and fixing hole 32 is screwed hole, is easy to the producer
Other motor shafts are connected with axle tail 3, and fixation is attached by fixing hole 32, the electric motor of automobile axle is improved and torsion is passed
The stability passed.
The guide groove 31 of the outer surface of axle tail 3 runs through the right surface of axle tail 3, and guide groove 31 is U-type groove, passes through guiding
The setting of groove 31 improves the connection accuracy of other motor shafts and the electric motor of automobile axle, is easy to other motor shafts and the electric motor of automobile
Axle is connected.
The aperture of the positioning hole 24 is less than the aperture of axis hole 22, and the left end of positioning hole 24 is pyramidal structure, and positions
Hole 24 is connected with axis hole 22, and the center line of positioning hole 24 is located at same straight line with the center line of axis hole 22, effectively raises
The stability of other motor shaft torsion transmission and the efficiency of torsion transmission, facilitate the torsion transmission lever of other motor shafts to enter axle
Hole 22 is simultaneously coordinated with the internal spline 23 of the inner surface of axis hole 22.
The New energy automobile motor axle of band positioning ensures the stability of moment of torsion transmission using the structure of interior rectangular spline
Positioned with the positioning hole 24 of reliability, and the left end for passing through axis hole 22, improve other motor shafts and pass through axis hole 22 and interior flower
The fiting effect of key 23, so as to reduce the abrasion condition of internal spline 23；The center line of the positioning hole 24 and the center of axis hole 22
Line is located at same straight line, i.e., has the requirement of axiality between positioning hole 24 and axis hole 22, and axiality requirement is less than 0.05mm；And
The shaft end 12 of the left end of power transmission shaft 1 connection then facilitates the integral installation of the New energy automobile motor axle to coordinate；And the outer surface of power transmission shaft 1
The annular knurl 11 of setting then can be transmitted the torsion that connecting shaft 2 receives by the annular knurl 11 of the outer surface of power transmission shaft 1, connecting shaft
The setting of 2 outer surface keyways 21 is then easy to the producer to carry out installation fixation to connecting shaft 2, facilitates the producer to the new-energy automobile
The use of motor shaft.
The beneficial effects of the utility model are：The New energy automobile motor axle is changed in conventional motor shaft and can only led to
The design method that spline carries out torsion transmission is crossed, so that the problems such as spline easily wears, torsion transmission efficiency is low；Due to
Shaft bore surface is provided with internal spline inside connecting shaft, and internal spline is rectangle internal spline so that other motor shafts can be by interior
Torsion is delivered to connecting shaft by spline, and is ground by the setting reduction internal spline of rectangle internal spline during torsion transmission
Damage, so as to effectively extend the service life of shaft bore surface internal spline；And the left end of axis hole is provided with positioning hole, positioning hole and axle
Hole is connected, and the left end of positioning hole is pyramidal structure, and the center line of positioning hole and the center line of axis hole are located at same straight line so that
Other motor shafts can be accurately positioned when entering and being coordinated in axis hole with internal spline by positioning hole, avoid interior flower
Key because cooperation there is deviation and caused by internal spline wear problem, effectively improve transmission efficiency of the internal spline to torsion, also further
Reduction internal spline the rate of wear, so as to extend the service life of the New energy automobile motor axle.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any change or replacement expected without creative work, should all cover within the scope of protection of the utility model.
Therefore, the scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (6)
- A kind of 1. New energy automobile motor axle of band positioning, it is characterised in that：Including power transmission shaft, and it is connected on the right side of power transmission shaft Connecting shaft, the connecting shaft outer surface are provided with keyway, and axle tail is connected with the right side of connecting shaft, and the outer surface of axle tail, which is provided with, leads To groove, the right surface of axle tail is provided with fixing hole, and the connecting shaft is internally provided with axis hole, and axis hole runs through axle tail table Face, the inner surface setting of the axis hole have internal spline, and the internal spline is rectangle internal spline, and it is fixed to be provided with the left of the axis hole Position hole.
- A kind of 2. New energy automobile motor axle of band positioning according to claim 1, it is characterised in that：The power transmission shaft Left end is connected with shaft end, and the left outer surface of power transmission shaft is provided with annular knurl, and power transmission shaft, shaft end, connecting shaft and axle tail are integrated Formula structure.
- A kind of 3. New energy automobile motor axle of band positioning according to claim 2, it is characterised in that：The right table of axle tail The fixing hole in face is provided with two or more, and fixing hole is screwed hole.
- A kind of 4. New energy automobile motor axle of band positioning according to claim 3, it is characterised in that：The axle tail appearance The guide groove in face runs through the right surface of axle tail, and guide groove is U-type groove.
- A kind of 5. New energy automobile motor axle of band positioning according to claim 1, it is characterised in that：The positioning hole Aperture is less than the aperture of axis hole, and the left end of positioning hole is pyramidal structure.
- A kind of 6. New energy automobile motor axle of band positioning according to claim 5, it is characterised in that：The positioning hole with Axis hole is connected, and the center line of the center line of positioning hole and axis hole is located at same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720770837.3U CN207111746U (en) | 2017-06-29 | 2017-06-29 | A kind of New energy automobile motor axle of band positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720770837.3U CN207111746U (en) | 2017-06-29 | 2017-06-29 | A kind of New energy automobile motor axle of band positioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111746U true CN207111746U (en) | 2018-03-16 |
Family
ID=61591962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720770837.3U Active CN207111746U (en) | 2017-06-29 | 2017-06-29 | A kind of New energy automobile motor axle of band positioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111746U (en) |
-
2017
- 2017-06-29 CN CN201720770837.3U patent/CN207111746U/en active Active
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