CN209510897U - A kind of rear wheel hub motors axis - Google Patents
A kind of rear wheel hub motors axis Download PDFInfo
- Publication number
- CN209510897U CN209510897U CN201822084010.4U CN201822084010U CN209510897U CN 209510897 U CN209510897 U CN 209510897U CN 201822084010 U CN201822084010 U CN 201822084010U CN 209510897 U CN209510897 U CN 209510897U
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- shaft part
- shaft
- motor
- wheel hub
- rear wheel
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Abstract
The utility model discloses a kind of rear wheel hub motors axis, including shaft body, shaft body includes the first shaft part, and one end of the first shaft part and one end of the second shaft part for installing rotor core are fixed；The other end of second shaft part is provided with third shaft part, and the other end of the first shaft part and one end of the 4th shaft part are fixed；The other end of 4th shaft part is fixed with the 5th shaft part；The diameter of first shaft part and the second shaft part successively decreases, and the diameter of the first shaft part and the 4th shaft part successively decreases；5th shaft part and the 4th shaft part are provided with threading hole along the direction of axis, are provided with fairlead on the arcwall face of the first shaft part；5th shaft part, the 4th shaft part, the first shaft part, the second shaft part and third shaft part axial line be overlapped.The utility model is in the case where guaranteeing the normal performance and mechanical strength of motor shaft, motor can also be effectively prevent to generate vibration, noise, play and prevent motor shaft from occurring the case where play on vehicle frame, also make the effect of the waterproof and dustproof of hub motor more preferable.
Description
Technical field
The utility model relates to vehicle technology fields, more particularly, to a kind of rear wheel hub motors for electric vehicle
Axis.
Background technique
Electric energy is widely used as clean energy resource in recent years, and new energy vehicle much all uses electric drive, therefore wheel hub
It is motor-driven will be used wider and wider it is general.The motor shaft in hub motor currently on the market can be born in use
Biggish torque, therefore, in order to guarantee the correct outputting torsion of hub motor, it is necessary to assure motor shaft is installed in body frame structure for automotive not
It can rotate and just be able to achieve；But there are some defects in motor shaft currently on the market in use: 1, due to wheel hub
For motor directly and after tire assembly, hub motor can carry out mediate contact with ground；Hub motor will will receive ground feedback
Complicated stress condition is easy for the problems such as causing wheel motor shaft play, vibration, rotation and generating noise, causes to wheel hub
The outputting torsion and product quality of motor impact；2, due to hub motor and ground mediate contact, hub motor be easy by
To the pollution of water and dust, and the position that motor shaft is stretched out from electric machine casing is the key that waterproof and dustproof；And currently on the market
Wheel motor shaft it is poor to the effect of waterproof and dustproof.
Utility model content
For the above problem in the prior art, the utility model proposes a kind of rear wheel hub motors axis, solve existing
Hub motor be easy to appear motor shaft play in the running, vibration, rotation, generate noise and motor shaft from electric machine casing
The technical problems such as waterproof and dustproof effect difference at middle extending area.
The technical solution of the utility model are as follows: a kind of rear wheel hub motors axis, including shaft body, the shaft body include the
One shaft part, one end of first shaft part and one end of the second shaft part for installing rotor core are fixed；Second shaft part
The other end be provided with third shaft part, one end of the other end and the 4th shaft part of first shaft part is fixed, the 4th shaft part
For being connect with motor cover board；The other end of 4th shaft part is fixed with the 5th shaft part, and the 5th shaft part is for installing wheel
Hub motor and the torsion on hub motor bearing is transmitted on vehicle frame；The diameter of first shaft part and the second shaft part successively decreases,
The diameter of first shaft part and the 4th shaft part successively decreases；5th shaft part and the 4th shaft part are provided with along the direction of axis
Threading hole is provided with the fairlead being connected to threading hole on the arcwall face of first shaft part；5th shaft part, the 4th axis
The axial line of section, the first shaft part, the second shaft part and third shaft part is overlapped.
As optimally, the shaft body is integrally machined molding, not only makes the strength character of motor shaft more preferable in this way, also
Each shaft part can be made to guarantee higher concentricity, prevent hub motor from generating vibration and noise in the running.
As optimally, the 4th shaft part includes bearing construction section and sealing section, and the bearing construction section is fixed on
Between sealing section and the first shaft part.Allow to facilitate in this way and be fixedly connected with motor shaft with motor cover board, and can be to electricity
The position that arbor is stretched out from electric machine casing is sealed, so that the waterproof and dustproof effect of motor is more preferable, so that wheel hub
Motor is under the conditions of rugged environment using also unaffected.
As optimally, the 5th shaft part includes motor shaft construction section and motor shaft fixed section, the motor shaft installation
Section is fixed between the 4th shaft part and motor shaft fixed section；Hub motor is made to be mounted on the stability on vehicle frame so more preferable,
It is easy for installation.
As optimally, the motor shaft construction section is arranged to flat structure；It is set on the surface of the motor shaft fixed section
It is equipped with helicitic texture.The torsion that setting motor shaft construction section allows to be subject on motor bearings in this way is transmitted to body frame structure for automotive
On, it prevents motor shaft the problem of rotating on vehicle frame, is also possible to prevent the case where motor shaft is worn in this way, guarantee electricity
The service life of arbor.
As optimally, the curved surfaces of second shaft part are provided with waist type keyway along the direction of axis.This sample prescription
Just rotor core is connected, transmitting rotor core rotation operation and the performance of torsion are more preferable.
As optimally, being provided with card collar groove on the curved surfaces of second shaft part, and the card collar groove is located at close to the
At three shaft parts.Card slot circle is used to limit the axial position of rotor core, can prevent rotor core from occurring on motor shaft in this way
The problem of play.
As optimally, chamfering is provided on the side wall of card collar groove on second shaft part.It is convenient second to make in this way
Rotor core is installed on shaft part, and avoids the case where during the installation process scratching rotor core, guarantees product
Quality.
As optimally, the junction of second shaft part and the first shaft part is provided with escape.Setting can disappear in this way
The problems in de-stress collection, while the shaft shoulder that the first shaft part and the second shaft part are formed can be guaranteed to the positioning accuracy of rotor core
More preferably.
As optimally, the diameter of the third shaft part is less than or equal to the diameter of the second shaft part, so that convenient the
Rotor core is installed on two shaft parts.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model has the advantages of simple structure, carries out being integrally machined molding to shaft body, mechanical strength is good；And this is practical
New-type instant installation, the stability being fixedly connected is good, so that the stability of hub motor product is more preferable.
2, the utility model is to carrying out shaft body to be integrally machined molding, also make each shaft part guarantee it is higher with one heart
The case where spending, preventing motor from generating vibration and noise in the running.
3, motor shaft is fixed on the inner sidewall of electric machine casing by third shaft part by bearing in the utility model, is then led to
It crosses bearing and axle sealing structure and motor shaft is mounted on motor cover board by the cooperation of the 4th shaft part, so that pacify on the second shaft part
The rotor core of dress is located between two bearings, can prevent motor shaft from asking for axial float occurring in hub motor in this way
Topic, can also prevent motor from occurring vibrating and leading to the problem of noise.
4, motor shaft construction section is arranged to flat structure so that it is convenient to which hub motor is mounted on vehicle frame in the utility model
In structure, and the torsion that can be subject to motor bearings is transmitted on body frame structure for automotive, prevents motor shaft from turning on vehicle frame
Dynamic problem, it is thus also avoided that the case where motor shaft is worn, so that the service life is longer for motor.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of rear wheel hub motors axis of the utility model.
Fig. 2 is a kind of cross-sectional view of rear wheel hub motors axis of the utility model.
Specific embodiment
The technical solution in the utility model is further illustrated with reference to the accompanying drawings and embodiments.
When it is implemented, the utility model includes shaft body, and shaft body includes the first shaft part 1, described referring to attached drawing 1,2
One end of first shaft part 1 and one end of the second shaft part 2 for installing rotor core are fixed；The other end of second shaft part 2 is arranged
There is third shaft part 3, one end of the other end and the 4th shaft part of the first shaft part 1 is fixed, and the 4th shaft part is used for and motor cover board
Connection；The other end of 4th shaft part is fixed with the 5th shaft part, and the 5th shaft part is for installing hub motor and by hub motor bearing
On torsion be transmitted on vehicle frame；The diameter of first shaft part 1 and the second shaft part 2 successively decreases, the diameter of the first shaft part 1 and the 4th shaft part
Successively decrease；5th shaft part and the 4th shaft part are provided with threading hole 4 along the direction of axis, are arranged on the arcwall face of the first shaft part 1
There is the fairlead 5 being connected to threading hole 4；5th shaft part, the 4th shaft part, the first shaft part 1, the second shaft part 2 and third shaft part 3 axis
Heart line is overlapped.
When it is implemented, the shaft body is integrally machined molding, the utility model is each to the molding of entire work pieces process
Shaft part forms shaft body, so that the mechanical strength of motor shaft entirety is more preferable.
When it is implemented, the 4th shaft part includes bearing construction section 6 and sealing section 7, the bearing construction section 6 is fixed
Between sealing section 7 and the first shaft part 1；Motor shaft is fixed on casing cover board by bearing construction section 6 by bearing, then axis
Seal section 7 with sealing ring or oil enveloping structure interference fit with casing cover board by being fixedly mounted.
When it is implemented, the 5th shaft part includes motor shaft construction section 8 and motor shaft fixed section 9, the motor shaft peace
Dress section 8 is fixed between the 4th shaft part and motor shaft fixed section 9；Motor shaft construction section 8 is used to hub motor being installed to vehicle frame
In structure, motor shaft fixing end is for further fixing motor, so that the stability for installing motor is more preferable.
When it is implemented, the motor shaft construction section 8 is arranged to flat structure；It is set on the surface of the motor shaft fixed section
It is equipped with helicitic texture 10.Make to increase motor shaft construction section 8 in this way and the contact area of body frame structure for automotive is bigger, motor after installation
Stability is more preferable, and the torsion being subject on motor bearings can be preferably transmitted on body frame structure for automotive, prevents motor shaft from existing
It is rotated on vehicle frame.
When it is implemented, the curved surfaces of second shaft part 2 are provided with waist type keyway 11 along the direction of axis.Rotor
Iron core is mounted on the second shaft part 2 by waist type keyway 11, for transmitting rotational motion and the torsion of iron core.
When it is implemented, be provided with card collar groove 12 on the curved surfaces of second shaft part 2, and the card collar groove 12 is located at and leans on
At nearly third shaft part 3；Rotor core is mounted on the second shaft part 2 and is carried out by the shaft shoulder that the second shaft part 2 and the first shaft part 1 are formed
Then Primary Location is stuck in card collar groove 12 by circlip and limits rotor core in the axial direction, so that rotor iron
The precision and stability of core installation is more preferable, prevents rotor core from play occurs.
When it is implemented, being provided with chamfering 13 on the side wall of card collar groove 12 on second shaft part 2.Make conveniently to exist in this way
Rotor core is installed on second shaft part 2, and avoids the case where during the installation process scratching rotor core, guarantees to produce
The quality of product.
When it is implemented, the junction of second shaft part 2 and the first shaft part 1 is provided with escape 14.Setting can in this way
To eliminate the problems in stress collection, while the shaft shoulder that can guarantee that the first shaft part 1 and the second shaft part 2 are formed determines rotor core
Position precision is more preferable.
When it is implemented, the diameter of the third shaft part 3 is less than or equal to the diameter of the second shaft part 2.The diameter of third shaft part 3
The slightly less than diameter of the second shaft part 2, is able to satisfy the bonding strength of third shaft part 3 in this way, but also rotor more convenient to install
Iron core.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of rear wheel hub motors axis, it is characterised in that: including shaft body, the shaft body includes the first shaft part, and described the
One end of one shaft part and one end of the second shaft part for installing rotor core are fixed；The other end of second shaft part is provided with
One end of third shaft part, the other end and the 4th shaft part of first shaft part is fixed, and the 4th shaft part is used for and motor cover board
Connection；The other end of 4th shaft part is fixed with the 5th shaft part, and the 5th shaft part is for installing hub motor and by wheel hub
Torsion on motor bearings is transmitted on vehicle frame；The diameter of first shaft part and the second shaft part successively decreases, first shaft part and
The diameter of 4th shaft part successively decreases；5th shaft part and the 4th shaft part are provided with threading hole along the direction of axis, and described
The fairlead being connected to threading hole is provided on the arcwall face of one shaft part；5th shaft part, the 4th shaft part, the first shaft part,
The axial line of two shaft parts and third shaft part is overlapped.
2. a kind of rear wheel hub motors axis as described in claim 1, it is characterised in that: the shaft body is integrally machined molding.
3. a kind of rear wheel hub motors axis as described in claim 1, it is characterised in that: the 4th shaft part includes bearing installation
Section and sealing section, the bearing construction section are fixed between sealing section and the first shaft part.
4. a kind of rear wheel hub motors axis as described in claim 1, it is characterised in that: the 5th shaft part includes motor shaft peace
Dress section and motor shaft fixed section, the motor shaft construction section are fixed between the 4th shaft part and motor shaft fixed section.
5. a kind of rear wheel hub motors axis as claimed in claim 4, it is characterised in that: the motor shaft construction section is arranged to flat
Flat structure；Helicitic texture is provided on the surface of the motor shaft fixed section.
6. a kind of rear wheel hub motors axis as described in claim 1, it is characterised in that: the curved surfaces edge of second shaft part
The direction of axis be provided with waist type keyway.
7. a kind of rear wheel hub motors axis as described in claim 1, it is characterised in that: on the curved surfaces of second shaft part
It is provided with card collar groove, and the card collar groove is located at third shaft part.
8. a kind of rear wheel hub motors axis as claimed in claim 7, it is characterised in that: the side of card collar groove on second shaft part
Chamfering is provided on wall.
9. a kind of rear wheel hub motors axis as described in claim 1, it is characterised in that: second shaft part and the first shaft part
Junction is provided with escape.
10. a kind of rear wheel hub motors axis as described in claim 1, it is characterised in that: the diameter of the third shaft part is less than
Equal to the diameter of the second shaft part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822084010.4U CN209510897U (en) | 2018-12-12 | 2018-12-12 | A kind of rear wheel hub motors axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822084010.4U CN209510897U (en) | 2018-12-12 | 2018-12-12 | A kind of rear wheel hub motors axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209510897U true CN209510897U (en) | 2019-10-18 |
Family
ID=68194243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822084010.4U Active CN209510897U (en) | 2018-12-12 | 2018-12-12 | A kind of rear wheel hub motors axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209510897U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112171633A (en) * | 2020-08-31 | 2021-01-05 | 上海安沛动力科技有限公司 | Unilateral hub motor shaft for robot chassis vehicle |
-
2018
- 2018-12-12 CN CN201822084010.4U patent/CN209510897U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112171633A (en) * | 2020-08-31 | 2021-01-05 | 上海安沛动力科技有限公司 | Unilateral hub motor shaft for robot chassis vehicle |
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