CN208133969U - A kind of electric axle assembly - Google Patents
A kind of electric axle assembly Download PDFInfo
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- CN208133969U CN208133969U CN201820476513.3U CN201820476513U CN208133969U CN 208133969 U CN208133969 U CN 208133969U CN 201820476513 U CN201820476513 U CN 201820476513U CN 208133969 U CN208133969 U CN 208133969U
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- reduction gear
- planetary reduction
- power output
- semiaxis
- differential mechanism
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Abstract
The utility model discloses a kind of electric axle assemblies, including laterally disposed driving motor and hollow motor power output shaft；The left end of the motor power output shaft protrudes from the left side wall of the driving motor, and the right end of the motor power output shaft is set to the inside of the driving motor；It is fixedly connected inside the left end of the motor power output shaft with differential mechanism；Power output end at left and right sides of differential mechanism is connected with the first semiaxis and the second semiaxis respectively；The left part of first semiaxis is fixedly connected with a planetary reduction gear, and second semiaxis is fixedly connected after extending transversely through the motor power output shaft with a planetary reduction gear；The planet carrier for planetary reduction gear of each planetary reduction gear is connected with a wheel respectively.The utility model is had excellent performance, and can significantly be shortened electric automobile assembly transmission chain length, be improved electric automobile assembly transmission efficiency, reduce transmission efficiency loss, effectively promote the passenger capacity and course continuation mileage of electric car.
Description
Technical field
The utility model relates to electric car manufacturing technology fields, more particularly to a kind of electric axle assembly.
Background technique
Currently, electric car is because it is with energy conservation and environmental protection, the advantages such as compact-sized, mass volume ratio is small, it is traditional energy
The developing direction of automobile is widely used in the work and life of people, and therefore, people are to electric car
Performance requirement is higher and higher.
Electric car current development is swift and violent, and cruising ability always is the emphasis that user is concerned about, everybody mainly closes at present
The heart focuses primarily upon battery, because the capacity of battery and power density are the main determining factors of automobile continuation of the journey.Meanwhile at present
The power assembly of electric car generallys use traditional internal-combustion engines vehicle power drive mechanism, specially：Motor is arranged in original
Driven generator and speed changer installation site, remain the structures such as transmission shaft and universal joint, traditional power transmission design be by
The output of motor is transmitted to differential mechanism by retarder again, is finally transmitted to semiaxis again and is exported.Therefore, in this design
In, electric automobile assembly transmission chain is longer, and larger so as to cause the loss of its transmission efficiency, transmission efficiency is lower, and greatly drops
The low space utilization of automobile chassis, is unable to reach the lightweight of power assembly of electric automobile and the maximum in battery arrangement space
Change, to increase the energy consumption of electric car unit mounted mass, finally seriously affected electric car passenger capacity and
Course continuation mileage.
Therefore, there is an urgent need to develop a kind of technologies out at present, can significantly shorten the transmission chain length of electric automobile assembly
Degree improves the transmission efficiency of electric automobile assembly, and then effectively promotes the passenger capacity and course continuation mileage of electric car.
Utility model content
In view of this, being had excellent performance, Ke Yixian the purpose of the utility model is to provide a kind of electric axle assembly
The transmission chain length for shortening electric automobile assembly is write, the transmission efficiency of electric automobile assembly is improved, reduces transmission efficiency loss, into
And the passenger capacity and course continuation mileage of electric car are effectively promoted, significantly enhance people to the product use feeling of electric car,
The further genralrlization application for having ensured electric car, is of great practical significance.
For this purpose, the utility model provides a kind of electric axle assembly, including laterally disposed driving motor in
Empty motor power output shaft；
The left end of the motor power output shaft protrudes from the left side wall of the driving motor, the motor power output shaft
Right end be set to the inside of the driving motor；
It is fixedly connected inside the left end of the motor power output shaft with differential mechanism；
Power output end at left and right sides of the differential mechanism is connected with the first semiaxis and the second semiaxis respectively；
The left part of first semiaxis is fixedly connected with a planetary reduction gear, and second semiaxis extends transversely through described
It is fixedly connected after motor power output shaft with a planetary reduction gear；
Planet carrier for planetary reduction gear on each planetary reduction gear is connected with a wheel respectively.
Wherein, it is fixedly connected inside the left end of the motor power output shaft with the power input shaft of differential mechanism.
Wherein, the differential mechanism includes a vertical distribution through axis, two differential mechanism sun gears and two differential mechanisms
Planetary gear, it is described to run through the power input shaft that axis is the differential mechanism；
Wherein, the upper and lower ends through axis fix with the left end inner sidewall of the motor power output shaft connect respectively
It connects；
The upper and lower ends through axis are also respectively fixed with the placed longitudinally differential spider wheel；
Described two differential mechanism sun gears are located at described the right and left for running through axis, described two differential mechanism sun gears
For the power output end at left and right sides of the differential mechanism, described two differential mechanism sun gears are laterally disposed；
Positioned at the two sides up and down of the differential mechanism sun gear through the axis left side left side with two differential spider wheels respectively
Side is meshed, and is connected with the first semiaxis；
Positioned at the two sides up and down of the differential mechanism sun gear on the right of the axis right side with two differential spider wheels respectively
Side is meshed, and is connected with the second semiaxis.
Wherein, each planetary reduction gear includes a planetary reduction gear sun gear, two planetary reduction gear planetary gears
And planet carrier for planetary reduction gear, wherein：
The planetary reduction gear sun gear and the intermeshing of planetary reduction gear planetary gear；
Described two planetary reduction gear sun gears are connected with first semiaxis and the second semiaxis respectively；
One end of the planet carrier for planetary reduction gear is fixedly connected with the planetary reduction gear planetary gear, and the other end is fixedly connected
One wheel.
Wherein, the outside of the driving motor is covered with hollow driving motor shell；
The left end of the motor power output shaft is open and is covered with outside the left end of the motor power output shaft hollow
Differential mechanism shell；
The outside of each planetary reduction gear is covered with hollow planetary reduction gear shell.
Wherein, the outboard end of each planetary reduction gear shell is connected with an end cap.
Wherein, the motor power output shaft, differential mechanism, the first semiaxis, the second semiaxis and two planetary reduction gears is dynamic
Power exports on the same axis.
It is provided by the utility model by the above technical solution provided by the utility model as it can be seen that compared with prior art
A kind of electric axle assembly, has excellent performance, and can significantly shorten the transmission chain length of electric automobile assembly, improves electronic
The transmission efficiency of automobile assembly reduces transmission efficiency loss, and then effectively promotes the passenger capacity and course continuation mileage of electric car, shows
Work enhances people to the product use feeling of electric car, has ensured the further genralrlization application of electric car, has great
Production practices meaning.
Detailed description of the invention
Fig. 1 is a kind of overall structure simplified schematic diagram of electric axle assembly provided by the utility model；
Fig. 2 is a kind of a kind of structural schematic diagram of specific embodiment of electric axle assembly provided by the utility model；
In figure, 1 is driving motor, and 2 be motor power output shaft, and 3 be differential mechanism, and 41 be the first semiaxis, and 42 be the second half
Axis, 5 be planetary reduction gear, and 6 be axle housing, and 7 be driving motor shell, and 8 be differential mechanism shell, and 9 be planetary reduction gear shell, and 10 are
End cap, 11 be planet carrier for planetary reduction gear；
31 is, through axis, 32 are differential mechanism sun gear, and 33 be differential spider wheel, and 40 be wheel；
51 be planetary reduction gear sun gear, and 52 be planetary reduction gear planetary gear.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and embodiment
The utility model is described in further detail.
Referring to Fig. 1, Fig. 2, the utility model provides a kind of electric axle assembly, including laterally disposed driving electricity
Machine 1 and hollow motor power output shaft 2；
The left end of the motor power output shaft 2 protrudes from the left side wall of the driving motor 1, the motor power output
The right end of axis 2 is set to the inside of the driving motor 1；
It is fixedly connected inside the left end of the motor power output shaft 2 with differential mechanism 3, specially：The motor power is defeated
It is fixedly connected inside the left end of shaft 2 with the power input shaft of differential mechanism 3；
Power output end at left and right sides of the differential mechanism is connected with the first semiaxis 41 and the second semiaxis 42 respectively；
The left part of first semiaxis 41 is fixedly connected with a planetary reduction gear 5, and second semiaxis 42 laterally passes through
It is fixedly connected after wearing the motor power output shaft 2 with a planetary reduction gear 5；
The planetary reduction gear frame 11 of each planetary reduction gear 5 is connected with a wheel 40 respectively.
For the utility model, it should be noted that driving motor 1 is power source, by motor power output shaft 2 thereon
Outside output power, specially：Power is first reached motor power output by motor power output shaft 2 by the driving motor 1
Differential mechanism 3 inside axis 2, then followed by reaching the first semiaxis 41 and second being connected with the power output shaft of differential mechanism 3
Then power is reached two planetary reduction gears 5 again by the first semiaxis 41 and the second semiaxis 42, passes through planetary reduction gear by semiaxis 42
Sun gear 51 and planetary reduction gear planetary gear 52 engage, and power is gone to planet carrier for planetary reduction gear 11, finally to external vehicle
40 output powers are taken turns, vehicle driving is driven.
In the present invention, in specific implementation, for the differential mechanism 3, specific structure is：
The differential mechanism 3 includes a vertical distribution through axis 31 (power input shaft i.e. as differential mechanism 3), two
Differential mechanism sun gear 32 and two differential spider wheels 33；
Wherein, left end inner sidewall of the upper and lower ends through axis 31 respectively with the motor power output shaft 2 is fixed
Connection；
The upper and lower ends through axis 31 are also respectively fixed with the placed longitudinally differential spider wheel 33；
Described two differential mechanism sun gears 32 are located at described the right and left for running through axis 31, and described two differential mechanisms are too
Sun wheel 32 is the power output end at left and right sides of the differential mechanism, and described two differential mechanism sun gears 32 are laterally disposed；
Positioned at the two sides up and down of the differential mechanism sun gear 32 through 31 left side of axis respectively with two differential spider wheels
33 left side is meshed, and is connected with the first semiaxis 41；
Positioned at the two sides up and down of the differential mechanism sun gear 32 through the right of axis 31 respectively with two differential spider wheels
33 right side is meshed, and is connected with the second semiaxis 42.
Therefore, for the utility model, work as automobile normal running, when differential situation is not present in driving wheels, differential
The differential spider wheel 33 of device 3 is equivalent to a bascule, does not generate rotation, only turns what motor power output shaft 2 transmitted
Square uniformly distributes to two differential mechanism sun gears 32, drives two differential mechanism sun gears 32 to rotate, when driving wheels are deposited
In differential situation, two differential spider wheels 33 through 31 upper and lower ends of axis are also and then rotated, at this time, two differential mechanisms
Planetary gear 33 will accordingly drive two differential mechanism sun gears 32 to rotate at different rates, and two differential mechanism sun gears 32 are used as institute
The power output end at left and right sides of differential mechanism is stated, the first semiaxis 41 and the second semiaxis 42 will be driven to rotate together, then by first
Power is reached two planetary reduction gears 5 again by semiaxis 41 and the second semiaxis 42, is subtracted by planetary reduction gear sun gear 51 and planet
Fast device planetary gear 52 engages, and power is gone to planet carrier for planetary reduction gear 11, finally to external 40 output power of wheel, driving
Vehicle driving.Therefore, for the utility model, compared with prior art, the transmission of electric automobile assembly can significantly be shortened
Chain length improves the transmission efficiency of electric automobile assembly, reduces transmission efficiency loss.
In the present invention, in specific implementation, for each planetary reduction gear 5, specific structure is：
Each planetary reduction gear 5 includes 51, two planetary reduction gear planetary gears 52 of a planetary reduction gear sun gear
With planet carrier for planetary reduction gear 11, wherein：
The planetary reduction gear sun gear 51 and two planetary reduction gear planetary gears 52 are intermeshed；
Described two planetary reduction gear sun gears 51 are connected with first semiaxis 41 and the second semiaxis 42 respectively；
One end of the planet carrier for planetary reduction gear 11 is fixedly connected with the planetary reduction gear planetary gear 52, and the other end is fixed
The wheel 40 of connection one (i.e. planet carrier for planetary reduction gear 11 is used as power output end).
It should be noted that described two planetary reduction gear planetary gears 52 can be located at the planet and subtract in specific implementation
The two sides up and down of fast device sun gear 51, naturally it is also possible to be located at other positions, because of the position of planetary reduction gear planetary gear 52
Be not it is fixed, revolved while rotation around planetary reduction gear sun gear 51.
It should be noted that described two planetary reduction gears 5, which are that both sides are double simultaneously, to slow down, power for the utility model
Outflow is same axis, and power output is steady, and transmission efficiency is high.
In the present invention, in specific implementation, the outside of the driving motor 1 is covered with hollow driving motor shell 7；
During the left end of the motor power output shaft 2 is open and is covered with outside the left end of the motor power output shaft 2
Empty differential mechanism shell 8；
The outside of each planetary reduction gear 5 is covered with hollow planetary reduction gear shell 9.
It should be noted that the outer gear ring of planetary reduction gear 5 is fixed on planetary reduction gear shell 9.
In the present invention, in specific implementation, the outboard end of each planetary reduction gear shell 9 is (i.e. far from driving
One end of motor 1) it is connected with an end cap 10.
In the present invention, in specific implementation, by the driving motor shell 7, differential mechanism shell 8, planetary reduction gear
Shell 9 and end cap 10 constitute the axle housing 6 of electric axle together.
In the present invention, in specific implementation, the motor power output shaft 2, differential mechanism 3, the first semiaxis 41, second
The power output of semiaxis 42 and two planetary reduction gears 5 is on the same axis.
It should be noted that for electric axle assembly provided by the utility model, in normal vehicle operation,
Driving motor by driving force by motor power output shaft pass to differential mechanism through axis and two differential spider wheels, connect
, two planetary gears of differential mechanism are by imparting power to two sun gears of differential mechanism, described in two sun gears of differential mechanism are used as
Power output end at left and right sides of differential mechanism, will drive the first semiaxis and the two semiaxis of the second semiaxis rotation, the first semiaxis and
Second semiaxis engages the sun gear respectively by planetary reduction gear with planetary reduction gear planetary gear, and power is passed to planet and is subtracted
Fast device planet carrier, planet carrier for planetary reduction gear impart power to wheel again, the final normal operation for realizing vehicle.
Unlike traditional technology, the utility model provides a kind of electric axle assembly, not only will driving
Motor, differential mechanism, planetary reduction gear, two semiaxis have carried out Deep integrating, while accordingly having carried out structure improvement, shorten biography
Dynamic chain length, increases compartment passenger space and battery arrangement space, improves the adaptability and competitiveness of product.
For the utility model, differential mechanism is integrated in inside motor power output shaft, the power of driving motor passes through
Motor power output shaft, differential mechanism, two semiaxis, planetary reduction gear are directly inputted to the wheel of two sides, so that the input of power
It is located at same axis with output end, therefore, the power output of electric axle assembly is steady and efficiency is higher.
As previously mentioned, the utility model is when structure designs, by designs of differentials before retarder, after carrying out first differential
Slow down, so that transmitting torque is small, the compact structure of such differential mechanism is small to size eventually.For example, the output torque when motor is
10N.m, reduction ratio 10, after formerly slowing down in the case where differential, the input torque of deceleration mechanism is 10N.m, and output torque is
100N.m, after differential mechanism, the output of two semiaxis is respectively 50N.m.In the case where deceleration after the utility model elder generation differential,
After differential mechanism, the output of two semiaxis is respectively 5N.m, and after retarder, output is respectively 50N.m.
In specific implementation, utility model carries out two sides and slows down, and every side deceleration mechanism transmitting torque only has original two/
One, this makes radial dimension small, realizes lightweight.
Compared with prior art, the utility model has technical effect below：
1, the utility model uses hollow motor power output shaft, and the second semiaxis in motor power output shaft after passing through
It is connected by planetary reduction gear and wheel, so that the coaxially arranged of motor and wheel is realized, so that power output is steady,
It is high-efficient；
2, the utility model is when structure designs, and by designs of differentials before retarder, in power output, carries out first
The kind of drive slowed down after differential, such compact structure arrangement, has power transmission uniform, transmitting torque is small, differential design ruler
The features such as very little small, output is steady, transmission efficiency height, lightweight；
3, the utility model carries out two sides and slows down, and the transmitting torque of the deceleration mechanism of every side only has original half, this makes
It is small to obtain radial dimension, realizes lightweight；
4, the structure of the differential mechanism in the utility model is small, can be integrated in inside motor power output shaft, greatly reduce
The transmission chain of entire electric axle, improves transmission performance, make electric axle it is compact-sized, save space, weight saving
And reduce the quantity of components；
5, the utility model also eliminates the transmission parts such as orthodox car transmission shaft and universal joint, directly by driving motor,
The feature depths such as differential mechanism, retarder, semiaxis are integrated, to increase the compartment passenger space and battery arrangement sky of electric car
Between, improve the adaptability and competitiveness of product；
6, for the utility model, each components volume for mainly solving electricity drive bridge in power transmission arrangment is larger,
The problems such as space utilization rate is low, and transmission chain is longer, and transmission efficiency is low, and course continuation mileage is short.
Therefore, in conclusion compared with prior art, the utility model provides a kind of electric axle assembly,
It has excellent performance, and can significantly shorten the transmission chain length of electric automobile assembly, improves the transmission efficiency of electric automobile assembly, drop
Underneath drive efficiency losses, and then the passenger capacity and course continuation mileage of electric car are effectively promoted, people are significantly enhanced to electronic vapour
The product use feeling of vehicle has ensured the further genralrlization application of electric car, has been of great practical significance.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (7)
1. a kind of electric axle assembly, which is characterized in that including laterally disposed driving motor (1) and hollow motor
Power output shaft (2)；
The left end of the motor power output shaft (2) protrudes from the left side wall of the driving motor (1), the motor power output
The right end of axis (2) is set to the inside of the driving motor (1)；
It is fixedly connected inside the left end of the motor power output shaft (2) with differential mechanism (3)；
Power output end at left and right sides of the differential mechanism is connected with the first semiaxis (41) and the second semiaxis (42) respectively；
The left part of first semiaxis (41) is fixedly connected with a planetary reduction gear (5), and second semiaxis (42) is laterally
It is fixedly connected afterwards with a planetary reduction gear (5) through the motor power output shaft (2)；
The planet carrier for planetary reduction gear (11) of each planetary reduction gear (5) is connected with a wheel (40) respectively.
2. electric axle assembly as described in claim 1, which is characterized in that a left side for the motor power output shaft (2)
End is internal to be fixedly connected with the power input shaft of differential mechanism (3).
3. electric axle assembly as claimed in claim 2, which is characterized in that the differential mechanism (3) includes one vertical
Distribution runs through axis (31), two differential mechanism sun gears (32) and two differential spider wheels (33), and run through axis (31) are
The power input shaft of the differential mechanism (3)；
Wherein, left end inner sidewall of the upper and lower ends through axis (31) respectively with the motor power output shaft (2) is fixed
Connection；
The upper and lower ends through axis (31) are also respectively fixed with the placed longitudinally differential spider wheel (33)；
Described two differential mechanism sun gears (32) are located at described the right and left for running through axis (31), and described two differential mechanisms are too
Sun wheel (32) is the power output end at left and right sides of the differential mechanism, and described two differential mechanism sun gears (32) are laterally disposed；
Positioned at the two sides up and down of the differential mechanism sun gear (32) through axis (31) left side respectively with two differential spider wheels
(33) it is meshed on the left of, and is connected with the first semiaxis (41)；
Positioned at the two sides up and down of the differential mechanism sun gear (32) on the right of axis (31) respectively with two differential spider wheels
(33) it is meshed on the right side of, and is connected with the second semiaxis (42).
4. electric axle assembly as described in claim 1, which is characterized in that each planetary reduction gear (5) includes
One planetary reduction gear sun gear (51), two planetary reduction gear planetary gears (52) and planet carrier for planetary reduction gear (11), wherein：
The planetary reduction gear sun gear (51) and two planetary reduction gear planetary gear (52) intermeshings；
Described two planetary reduction gear sun gears (51) are connected with first semiaxis (41) and the second semiaxis (42) respectively；
One end of the planet carrier for planetary reduction gear (11) is fixedly connected with the planetary reduction gear planetary gear (52), and the other end is fixed
Connect a wheel (40).
5. electric axle assembly as described in claim 1, which is characterized in that the outside of the driving motor (1) is covered with
Hollow driving motor shell (7)；
During the left end of the motor power output shaft (2) is open and is covered with outside the left end of the motor power output shaft (2)
Empty differential mechanism shell (8)；
The outside of each planetary reduction gear (5) is covered with hollow planetary reduction gear shell (9).
6. electric axle assembly as claimed in claim 5, which is characterized in that each planetary reduction gear shell (9)
Outboard end be connected with an end cap (10).
7. such as electric axle assembly described in any one of claims 1 to 6, which is characterized in that the motor power is defeated
Shaft (2), differential mechanism (3), the first semiaxis (41), the second semiaxis (42) and the power output of two planetary reduction gears (5) are same
On one axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820476513.3U CN208133969U (en) | 2018-04-04 | 2018-04-04 | A kind of electric axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820476513.3U CN208133969U (en) | 2018-04-04 | 2018-04-04 | A kind of electric axle assembly |
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| Publication Number | Publication Date |
|---|---|
| CN208133969U true CN208133969U (en) | 2018-11-23 |
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ID=64291941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820476513.3U Active CN208133969U (en) | 2018-04-04 | 2018-04-04 | A kind of electric axle assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN208133969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340737A (en) * | 2018-04-04 | 2018-07-31 | 清研新能源汽车工程中心（襄阳）有限公司 | A kind of electric axle assembly |
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2018
- 2018-04-04 CN CN201820476513.3U patent/CN208133969U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340737A (en) * | 2018-04-04 | 2018-07-31 | 清研新能源汽车工程中心（襄阳）有限公司 | A kind of electric axle assembly |
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