CN208118930U - Torque fixed direction allocation electric drive axle based on double-rotor machine - Google Patents
Torque fixed direction allocation electric drive axle based on double-rotor machine Download PDFInfo
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- CN208118930U CN208118930U CN201820338127.8U CN201820338127U CN208118930U CN 208118930 U CN208118930 U CN 208118930U CN 201820338127 U CN201820338127 U CN 201820338127U CN 208118930 U CN208118930 U CN 208118930U
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Abstract
The utility model discloses a kind of torque fixed direction allocation electric drive axle based on double-rotor machine, including：Shell and main drive motor, the side being immobilized in the shell, and including cartridge type internal rotor；Main reducing gear connects the cartridge type internal rotor and is immobilized in the shell；Two-stage planet wheel planet row differential mechanism connects the main reducing gear and is installed in the housing central section, carries out constant speed or differential output；Contrarotating double-rotor machine is fixed on the other side of the shell by outer housing, the torque opposite from the two sides output size same direction.Torque fixed direction allocation function is realized based on the electric drive axle of the both-end torque-output characteristics of double-rotor machine the utility model proposes a kind of, increases electric vehicle limit cornering ability and mobility.
Description
Technical field
The utility model belongs to technical field of electric vehicle transmission, in particular to turns between a kind of wheel based on double-rotor machine
Square can orientation distribution electric drive axle.
Background technique
In recent years, it is constantly progressive with the improvement of people ' s living standards with technology, people also propose the quality of automobile
Increasingly higher demands are gone out, by being initially only gradually transitioned into as the demand of walking-replacing tool to safety, comfort, economy
Property in the demands such as driving pleasure, people are also increasing year by year the demand of high-performing car, therefore, for high-performing car
Innovation Input be also very necessary.
Electric car is the important development direction that future transportation mode adapts to energy-saving and emission-reduction, receives various countries and payes attention to, and
Good development was achieved in recent years.The development of Electric Cars in China is started in full-sized bus and small-sized low side electric vehicle, so
And with the development of electronic information technology, electric car has promoted just gradually to information-based, high-endization development with tesla, than Asia
Enlightening is the high-performance of representative, sports type electric car.Therefore, in order to improve the driving performance of electric car, develop high performance
Electric car, the application of the electric drive axle with torque fixed direction allocation function are to improve electric vehicle engineering level and product capability
Important means.
Orthodox car drive axle is located at transmission system end, mainly by main reducing gear, differential mechanism, semiaxis and driving axle housing etc.
Composition, wherein differential mechanism is the important component in drive axle.Due to " the not poor torsion of differential " principle of differential mechanism, engine is caused to pass
The driving torque passed can only be evenly distributed on the wheel of two sides, so just can not be good in the case where road surface attachment is unequal
There is the case where wheel-slip using traction, or even in low attachment side, causes the unstability of vehicle.Meanwhile automobile exists
When tempo turn, since the load of inside shifts outward, it is also possible to cause inboard wheel to reach limit of adhesion generation and trackslip and make
Automobile unstability.If driving torque can arbitrarily distribute between the wheel of two sides, the limit of adhesion of each wheel can be made full use of,
It is significantly reduced above-mentioned unstability operating condition.In addition, driving torque can be by low attachment when road surface attachment is unequal at the wheel of two sides
One side is shifted to height attachment side, to eliminate the operating condition that low attachment single wheel skids.When automobile is in tempo turn, if driving
By inboard wheel, wheel shifts dynamic torque outward, then can prevent inboard wheel from trackslipping, and the lateral force for increasing vehicle is abundant
Degree, while an additional yaw moment is generated, which can help to push and guide vehicle turning, improve vehicle turning machine
Dynamic property and limit cornering ability.
Currently, the technology is to be applied to some high-end sports cars and SUV in the form of torque fixed direction allocation differential mechanism
In, however but there is no excessive applications on electric car for the technology.There is patent in early days, " one kind is with torque fixed direction allocation
The torque fixed direction allocation differential art that the bi-motor coupling driving bridge of function " (106965659 A of patent No. CN) is announced is past
The transverse direction of torque is realized toward by the planetary gear mechanism controlled by multi-disc electromagnetism or hydraulic clutch is arranged in drive axle
Transfer distribution.There are sliding wear loss when combining and disconnect due to clutch, system power dissipation is increased.And clutch locking torque
It is limited, and there are response lags for movement, this affects the implementation effect and quality of torque fixed direction allocation.In addition, multiple groups planet tooth
Wheel mechanism also causes system bulk and quality higher, difficulty in arrangement.
Utility model content
The utility model is the deficiency for solving current technology, proposes that a kind of both-end torque output based on double-rotor machine is special
The electric drive axle of property, torque fixed direction allocation function is realized by the opposite torque of the both-end outbound course of double-rotor machine,
Increase electric vehicle limit cornering ability and mobility.
Technical solution provided by the utility model is：A kind of electronic drive of torque fixed direction allocation based on double-rotor machine is provided
Dynamic bridge, which is characterized in that including：
Main drive motor connects the gear ring of two-stage planet wheel planet row differential mechanism by main reducing gear；
Wherein, the sun gear of the two-stage planet wheel planet row differential mechanism is connected with the first semiaxis, the two-stage planet wheel
The planet carrier of planet row differential mechanism is connected with the second semiaxis；
Contrarotating double-rotor machine comprising coaxially can relative rotation setting outer rotor and internal rotor, the outer rotor
It is pivotally supported at shell intracoelomic cavity, the internal rotor is pivotally supported at the outer rotor inner cavity；
First output end driving gear connects the outer rotor power output shaft；
First output end driven gear, and the first output end driving gear engaged transmission, and with described first
Half axis connection；
Second output terminal driving gear connects the internal rotor power output shaft；
Second output terminal driven gear is rotatably supported at the second output terminal driving gear engaged transmission
First semiaxis, and connect with the planet carrier of the two-stage planet wheel planet row differential mechanism；
Wherein, the transmission ratio between the first output end driving gear and the first output end driven gear with it is described
Transmission ratio between second output terminal driving gear and the second output terminal driven gear is equal.
Preferably, shell is set in the main drive motor, the main reducing gear, the two-stage planet wheel planet
Arrange the outside of differential mechanism and the contrarotating double-rotor machine, the shell of the inner walls and the main drive motor and
The shell of contrarotating double-rotor machine is connected.
Preferably, the main drive motor is cartridge type inner rotor motor.
Preferably, the two-stage planet wheel planet row differential mechanism further includes：
The gear ring is rotationally supported on the shell by the hollow shaft neck at both ends；
Sun gear is contained in the gear ring, is connect with first Formation of Axle Shaft Spline；
Multipair planetary gear is arranged between the sun gear and gear ring, and the planetary gear is mutually outer ratcheting, and close to interior
The planetary gear of side with it is ratcheting outside the sun gear, close to outside planetary gear with it is ratcheting in the gear ring；
The planet carrier, is arranged in the two sides of the planetary gear, and the planet carrier is connect with second Formation of Axle Shaft Spline.
The planet row characterisitic parameter of the two-stage planet wheel planet row differential mechanism is 2.
Preferably,
The planet carrier first end hollow shaft and second semiaxis are stretched out from the gear ring both ends hollow shaft inner hole respectively.
Preferably,
The main reducing gear is double-row planetary gear retarder comprising the first planetary gear train and the second row being driven side by side
Star wheel series.
Preferably,
First planetary gear train includes：
First sun gear is rotatably supported on second semiaxis；
Three the first planetary gears are engaged with first sun gear；
First planet carrier is connected with the gear ring of the two-stage planet wheel planet row differential mechanism；
First ring gear is connected with the shell.
Preferably,
Second planetary gear train includes：
Second sun gear is rotatably supported on second semiaxis, and the power output with the main drive motor
The connection of axis spline；
Three the second planetary gears are engaged with second sun gear
Second planet carrier is connect with first sun gear；
Second ring gear is connected with the shell.
Preferably, further include：
The first half axis connection left side wheel；And
The hollow rotor shafts inner hole that second semiaxis passes through the main drive motor connects right side wheels.
Preferably,
The internal rotor of the main drive motor is connect with the second sun gear spline.
Beneficial effect described in the utility model：1) driving torque of the utility model can be according to the control of control logic
Demand arbitrary size equal direction it is oppositely oriented be assigned to wheel at left and right sides of rear axle, it is fast from revolving speed that torque both may be implemented
Single wheel is transferred to the slow side of revolving speed, can also realize that torque is transferred to the fast side vehicle of revolving speed from the slow single wheel of revolving speed
Wheel realizes any distribution of the left and right sides wheel torque under the premise of not changing longitudinal total driving torque strictly；2) this reality
The novel actuator using double-rotor machine as torque fixed direction allocation mechanism is used, no mechanical friction loss, action response are rapid,
Simplify the planetary gear mechanism of tradition torque fixed direction allocation mechanism；3) level of integrated system is high, compact-sized, space hold is small, letter
It is single reliable.
Detailed description of the invention
Fig. 1 is the torque fixed direction allocation electric drive axle structural representation letter described in the utility model based on double-rotor machine
Figure.
Fig. 2 is the torque fixed direction allocation electric drive axle described in the utility model based on double-rotor machine in no torque
Torque when distribution requirements flows to schematic diagram.
Fig. 3 is the torque fixed direction allocation electric drive axle described in the utility model based on double-rotor machine in driving torque
Torque when by the first half axial second semiaxis distribution flows to schematic diagram.
Fig. 4 is the torque fixed direction allocation electric drive axle described in the utility model based on double-rotor machine in driving torque
Torque when by the second half axial first semiaxis distribution flows to schematic diagram.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
As shown in Figure 1, the utility model provides a kind of torque fixed direction allocation drive axle based on double-rotor machine, mainly
By torque fixed direction allocation device 2000, two-stage planet wheel planet row differential mechanism 1300, main reducing gear 1000 and main drive motor 1001
It constitutes.As shown in Figure 1, shell and main drive motor 1001, the side being immobilized in the shell, and including in cartridge type
Rotor, main drive motor 1001 are used for output power；Main reducing gear 1000 connects the cartridge type internal rotor and is fixed on
In shell, the main reducing gear 1000 carries out speed change to output power；
Two-stage planet wheel planet row differential mechanism 1300 connects the main reducing gear 1000 and is installed in the housing central section,
The first semiaxis 1301 and the second semiaxis 1302 being connected respectively with two sides tire including stretching out the shell, two-stage planet wheel planet
It is defeated by the first semiaxis 1301 and the second semiaxis 1302 progress constant speed or differential to the output power after speed change to arrange differential mechanism 1300
Out；The other side of two-stage planet wheel planet row differential mechanism 1300 is arranged on the inside of tire in torque fixed direction allocation device 2000, turns
Square fixed direction allocation device 2000 mainly includes：Contrarotating double-rotor machine 1600 is fixed on the shell by outer housing 1601
The other side, wherein including coaxial outer rotor 1602 and internal rotor 1603, the outer rotor 1602 is pivotally supported at institute
1601 inner cavity of outer housing is stated, the internal rotor 1603 is pivotally supported at 1602 inner cavity of outer rotor；First output end tooth
Wheel drive mechanism 1400 connects the outer rotor 1602 and the first semiaxis 1301, is used for transmission power；Second output terminal gear
Transmission mechanism 1500 connects the internal rotor 1603 and two-stage planet wheel planet row differential mechanism 1300, is used for transmission power.
Torque fixed direction allocation device 2000 is located at (also can be with main drive motor 1001 and 1000 groups of main reducing gear on the left of drive axle
At main power source assembly reversing of position, be arranged on the right side of drive axle), mainly by contrarotating double-rotor machine 1600, the
One gear of output end transmission mechanism 1400 and second output terminal gear drive 1500 are constituted.
The outer housing 1601 of the contrarotating double-rotor machine 1600 is fixed on Driving axle housing, and outer rotor 1602 can revolve
Turn ground support in outer 1601 inner cavity of shell, as the first output end of contrarotating double-rotor machine, outside output torque.Internal rotor
1603 are pivotally supported at 1602 inner cavity of outer rotor, and as the second output terminal of contrarotating double-rotor machine, output turns outward
Square.The contrarotating double-rotor machine 1600 has the special feature that the torque that outer rotor 1602 and internal rotor 1603 export is always
Size is identical, contrary, which is to be determined by double-rotor machine by the characteristic of contrarotating double-rotor machine type.
The first gear of output end transmission mechanism 1400 by the first output end driving gear 1401 and the first output end from
Moving gear 1402 is constituted.Wherein the first output end of the first output end driving gear 1401 and contrarotating double-rotor machine 1600 is solid
Fixed connection, can transmit the torque of the output of outer rotor 1602, and the first output end driven gear 1402 and 1301 spline of the first semiaxis connect
It connects.
The second output terminal gear drive 1500 by second output terminal driving gear 1501 and second output terminal from
Moving gear 1502 is constituted.Wherein the second output terminal of second output terminal driving gear 1501 and contrarotating double-rotor machine 1600 is solid
Fixed connection, can transmit the torque of the output of internal rotor 1603, and second output terminal driven gear 1502 is pivotally supported at the first half
On axis 1301, and it is fixedly connected with the first end of the planet carrier 1304 of two-stage planet wheel planet row differential mechanism 1300.
The first gear of output end transmission mechanism 1400 is having the same with second output terminal gear drive 1500
Transmission ratio.
The two-stage planet wheel planet row differential mechanism 1300, mainly by the first semiaxis 1301, the second semiaxis 1302, gear ring
1303, planet carrier 1304, sun gear 1305 and three pairs totally 6 circle distributions planetary gear 1306 form.Wherein sun gear 1305
It is connect with 1301 spline of the first semiaxis, the hollow axle portion of the first end of planet carrier 1304 and 1502 spline of second output terminal driven gear
Connection, the second end of planet carrier 1304 are connect with 1302 spline of the second semiaxis.Gear ring 1303 is detachable box typed structure, interior
Portion accommodates the differential mechanisms components such as sun gear 1305, planet carrier 1304, planetary gear 1306.Gear ring 1303 can using box typed structure
Increase rigidity.Gear ring 1303 can be pivotally supported on Driving axle housing by the hollow shaft neck at both ends, planet carrier 1,304 first
Holding hollow shaft and the second semiaxis 1302, from gear ring both ends, hollow shaft inner hole is stretched out and is rotatably supported on gear ring 1303 respectively.The
The hollow axle portion stretching of the first end of one semiaxis 1301 from planet carrier 1304 is connected with revolver, and the second semiaxis 1302 is from gear ring 1,303 1
End centre bore stretching is connected with right wheel, and the center whole empty set of three pairs of planetary gears 1306 of totally 6 circumference uniform distributions is supported on planet
On frame 1304, the common axle of the first semiaxis 1301 and the second semiaxis 1302 on the one hand can be surrounded with the rotation of planet carrier 1304
On the other hand line revolution can also pass around the axis (referred to as planet wheel spindle) of its centre bore being connected with 1304 interference of planet carrier certainly
Turn.The mutual external toothing of each pair of two planetary gears 1306 being closely located to, and planetary gear 1306 and sun gear 1305 close to inside
External toothing, while planetary gear 1306 and 1303 internal messing of gear ring close to outside.Planet carrier 1304 is fenestration entirety cabinet knot
Structure, the pairs of intermeshing planetary gear 1306 of accommodated inside sun gear 1305 and 6.By from planet carrier 1304 dismantle across
The planet wheel spindle of each 1306 centre bore of planetary gear, 6 1306 Hes of planetary gear that can will be put into from the windowing of planet carrier 1304 position
Sun gear 1305 takes out.The rigidity for supporting the planet carrier 1304 of multiple planetary gears 1306 can be increased using whole body structure.It needs
It is noted that being arrived for the torque for guaranteeing that two-stage planet wheel planet row differential mechanism 1300 etc. divides main drive motor 1001 to be transmitted to
The value of two sidecar wheels, planet row characterisitic parameter is necessary for 2.
Main reducing gear 1000 is located at the right side of drive axle, mainly by the first planetary gear train 1100 and the second planetary gear train 1200
It constitutes.First planetary gear train 1100 includes planetary gear 1102,1103 and of sun gear of 1101, three circumference uniform distributions of ring gear
Planet carrier 1104.Wherein gear ring 1101 is fixed on Driving axle housing, and sun gear 1103 is pivotally supported at the second semiaxis
On 1302, and it is fixed with one with the planet carrier 1204 of the second planetary gear train 1200, planet carrier 1104 and two-stage planet wheel planet
The gear ring 1303 of row's differential mechanism 1300 is fixedly connected.Second planetary gear train 1200 includes that 1201, three circumference of ring gear are equal
Planetary gear 1202, sun gear 1203 and the planet carrier 1204 of cloth.Wherein gear ring 1201 is fixed on Driving axle housing, sun gear
1203 are pivotally supported on the second semiaxis 1302, and connect with the hollow inner rotor shaft spline of main drive motor 1001.
Main drive motor 1001 is located at the right side of main reducing gear 1000, is a cartridge type inner rotor motor, connection
Second semiaxis 1302 of right side wheels is pierced by from its hollow rotor shafts inner hole.Cartridge type internal rotor and the second planetary gear train 1200
The connection of 1203 spline of sun gear, driving torque can be transferred to main reducing gear by sun gear 1203 by main drive motor 1001
1000, and be applied on gear ring 1303, it is finally distributed on the first semiaxis 1301 and the second semiaxis 1302, drives running car.
The internal rotor of the main drive motor 1001 is rotatably supported on the second semiaxis 1302, stator and its shell and drive axle
Shell is fixedly connected.
Preferably, main reducing gear 1000 can be by the speed reducer of single planetary gear train, multiple rows of planetary gear train or other forms
It is configured to.
Electric four-wheel drive System Working Principle described in the utility model with torque fixed direction allocation function is as follows：
Example structure schematic diagram with the torque fixed direction allocation electric drive axle shown in FIG. 1 based on double-rotor machine is
Example, illustrates working principle.
When automotive service is in normal straight driving cycle, when without torque distribution requirements, contrarotating double-rotor machine 1600
In without control signal, double-rotor machine is inoperative, the first output end and second output terminal not output torque, at this time automobile
It is only driven by main drive motor 1001, the torque that main drive motor 1001 exports is arrived by 1000 torque increasing action of main reducing gear
On gear ring 1303, since two-stage planet wheel planet row differential mechanism 1300 etc. divides the principle of torque, it is applied on gear ring 1303 and turns
Square is distributed on the first semiaxis 1301 and the second semiaxis 1302, drives running car.At this point, due to automobile straight-line travelling, left and right
Two sides vehicle wheel rotational speed is identical, therefore the first semiaxis 1301 is identical with the revolving speed of the second semiaxis 1302.Again due to the first output end from
Moving gear 1402 is connect with 1301 spline of the first semiaxis, so 1301 revolving speed of the first output end driven gear 1402 and the first semiaxis
It is identical.Again since second output terminal driven gear 1502 is fixedly connected with the first end of planet carrier 1303, the of planet carrier 1303
Two ends are fixedly connected with the second semiaxis 1302 again, therefore second output terminal driven gear 1502 and 1302 revolving speed phase of the second semiaxis
Together, so the first output end driven gear 1402 is identical as 1502 revolving speed of second output terminal driven gear.Again because of the first output
End tooth wheel drive mechanism 1400 and the transmission ratio having the same of second output terminal gear drive 1500, therefore the first output end
Driving gear 1401 is identical as 1501 revolving speed of second output terminal driving gear, i.e., the outer rotor 1602 of contrarotating birotor 1600 with
The revolving speed of internal rotor 1603 is identical, contrarotating double-rotor machine 1600 and inoperative, servo-actuated idle running, the first output end and second defeated
Outlet not output torque.Torque distribution stream is as shown in Figure 2.
When automobile normal differential turning, left and right sides wheel driving torque is identical, distributes without torque, therefore, to turning
Formula double-rotor machine 1600 does not control signal, and double-rotor machine is inoperative, and the first output end is not defeated with second output terminal
Torque out, the torque that main drive motor 1001 exports are passed through in 1000 torque increasing action to gear ring 1303 of main reducing gear, then etc.
It assigns on the first semiaxis 1301 and the second semiaxis 1302, drives running car.Torque distribution stream is also shown in FIG. 2.
When operating condition of the automotive service when driving torque is distributed from the first semiaxis 1301 to the second semiaxis 1302, if setting
The direction of rotation of wheel is positive direction when automobile moves forward, otherwise is negative direction.Contrarotating double-rotor machine 1600 connects at this time
It is controlled signal starting, starts external output torque.If the first output end output torque of contrarotating double-rotor machine 1600
For T0(T0For positive value), due to being driven for external toothing deceleration torque increase, which passes through the first gear of output end transmission mechanism 1400,
Input into the first semiaxis 1301 torque be-i1T0, wherein i1For the transmission ratio of the first gear of output end transmission mechanism 1400.By
The output torque feature of contrarotating double-rotor machine is it is found that when the torque of the first output end output is T0When, second output terminal is defeated
Torque out is-T0, which is i by second output terminal gear drive 1500, the torque of input planet carrier 13041T0,
Since the second end of planet carrier 1304 is fixedly connected with the second semiaxis 1302, the second output terminal of contrarotating double-rotor machine 1600
The torque inputted into the second semiaxis 1302 is i1T0, wherein second output terminal gear drive 1500 and first exports end tooth
The transmission ratio i having the same of wheel drive mechanism 14001.Therefore, the torque that the first semiaxis 1301 obtains is the first gear of output end
Torque-the i that transmission mechanism 1400 inputs1T0, the torque that the second semiaxis 1302 obtains is second output terminal gear drive 1500
The torque i of input1T0.That is the torque of the first semiaxis 1301 reduces i1T0, the torque increase i of the second semiaxis 13021T0, driven always
In the case that torque remains unchanged, distribution of the driving torque from the first semiaxis 1301 to the second semiaxis 1302 is realized, driving turns
Square sendout is i1T0.Torque distribution stream is as shown in Figure 3.
When operating condition of the automotive service when driving torque is distributed from the second semiaxis 1302 to the first semiaxis 1301, if setting
The direction of rotation of wheel is positive direction when automobile moves forward, otherwise is negative direction.It can similarly obtain, at this time contrarotating birotor electricity
Machine 1600 receives control signal and starts, and starts external output torque.If the first output end of contrarotating double-rotor machine 1600
Output torque is-T0(T0For positive value), due to being driven for external toothing deceleration torque increase, which passes through the first gear of output end and is driven
Mechanism 1400, input into the first semiaxis 1301 torque be i1T0, wherein i1For the biography of the first gear of output end transmission mechanism 1400
Dynamic ratio.By the output torque feature of contrarotating double-rotor machine it is found that when the torque of the first output end output is-T0When, second
The torque of output end output is T0, by second output terminal gear drive 1500, input planet carrier 1304 turns for the torque
Square is-i1T0, since the second end of planet carrier 1304 is fixedly connected with the second semiaxis 1302, contrarotating double-rotor machine 1600
Second output terminal inputs the torque as-i into the second semiaxis 13021T0, wherein second output terminal gear drive 1500 and
The transmission ratio i having the same of one gear of output end transmission mechanism 14001.Therefore, the torque that the first semiaxis 1301 obtains is first
The torque i that gear of output end transmission mechanism 1400 inputs1T0, the torque that the second semiaxis 1302 obtains is second output terminal gear biography
Torque-the i that motivation structure 1500 inputs1T0.That is the torque of the first semiaxis 1301 increases i1T0, the torque reduction of the second semiaxis 1302
i1T0, in the case where total driving torque remains unchanged, driving torque is realized from the second semiaxis 1302 to the first semiaxis 1301
Distribution, driving torque sendout are i1T0.Torque distribution stream is as shown in Figure 4.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (10)
1. a kind of torque fixed direction allocation electric drive axle based on double-rotor machine, which is characterized in that including：
Main drive motor connects the gear ring of two-stage planet wheel planet row differential mechanism by main reducing gear；
Wherein, the sun gear of the two-stage planet wheel planet row differential mechanism is connected with the first semiaxis, the two-stage planet wheel planet
The planet carrier of row's differential mechanism is connected with the second semiaxis；
Contrarotating double-rotor machine comprising coaxially can relative rotation setting outer rotor and internal rotor, the outer rotor can revolve
Turn ground support in outer housing cavity, the internal rotor is pivotally supported at the outer rotor inner cavity；
First output end driving gear connects the outer rotor power output shaft；
First output end driven gear, and the first output end driving gear engaged transmission, and with first semiaxis
Connection；
Second output terminal driving gear connects the internal rotor power output shaft；
Second output terminal driven gear is rotatably supported at described with the second output terminal driving gear engaged transmission
First semiaxis, and connect with the planet carrier of the two-stage planet wheel planet row differential mechanism；
Wherein, the transmission ratio between the first output end driving gear and the first output end driven gear and described second
Transmission ratio between output end driving gear and the second output terminal driven gear is equal.
2. the torque fixed direction allocation electric drive axle according to claim 1 based on double-rotor machine, which is characterized in that also
Including：
Shell is set in the main drive motor, the main reducing gear, the two-stage planet wheel planet row differential mechanism and described
The shell and contrarotating birotor electricity of the outside of contrarotating double-rotor machine, the inner walls and the main drive motor
The shell of machine is connected.
3. the torque fixed direction allocation electric drive axle according to claim 1 based on double-rotor machine, which is characterized in that institute
Stating main drive motor is cartridge type inner rotor motor.
4. the torque fixed direction allocation electric drive axle according to claim 2 based on double-rotor machine, which is characterized in that institute
Stating two-stage planet wheel planet row differential mechanism further includes：
The gear ring is rotationally supported on the shell by the hollow shaft neck at both ends；
Sun gear is contained in the gear ring, is connect with first Formation of Axle Shaft Spline；
Multipair planetary gear is arranged between the sun gear and gear ring, and the planetary gear is mutually outer ratcheting, and close to inside
Planetary gear with it is ratcheting outside the sun gear, close to outside planetary gear with it is ratcheting in the gear ring；
The planet carrier, is arranged in the two sides of the planetary gear, and the planet carrier is connect with second Formation of Axle Shaft Spline；
The planet row characterisitic parameter of the two-stage planet wheel planet row differential mechanism is 2.
5. the torque fixed direction allocation electric drive axle according to claim 2 based on double-rotor machine, which is characterized in that
The planet carrier first end hollow shaft and second semiaxis are stretched out from the gear ring both ends hollow shaft inner hole respectively.
6. the torque fixed direction allocation electric drive axle according to claim 5 based on double-rotor machine, which is characterized in that
The main reducing gear is double-row planetary gear retarder comprising the first planetary gear train and the second planetary gear being driven side by side
System.
7. the torque fixed direction allocation electric drive axle according to claim 6 based on double-rotor machine, which is characterized in that
First planetary gear train includes：
First sun gear is rotatably supported on second semiaxis；
Three the first planetary gears are engaged with first sun gear；
First planet carrier is connected with the gear ring of the two-stage planet wheel planet row differential mechanism；
First ring gear is connected with the shell.
8. the torque fixed direction allocation electric drive axle according to claim 7 based on double-rotor machine, which is characterized in that
Second planetary gear train includes：
Second sun gear is rotatably supported on second semiaxis, and is spent with the power output shaft of the main drive motor
Key connection；
Three the second planetary gears are engaged with second sun gear
Second planet carrier is connect with first sun gear；
Second ring gear is connected with the shell.
9. the torque fixed direction allocation electric drive axle according to claim 3 based on double-rotor machine, which is characterized in that also
Including：
The first half axis connection left side wheel；And
The hollow rotor shafts inner hole that second semiaxis passes through the main drive motor connects right side wheels.
10. the torque fixed direction allocation electric drive axle according to claim 8 based on double-rotor machine, which is characterized in that
The internal rotor of the main drive motor is connect with the second sun gear spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338127.8U CN208118930U (en) | 2018-03-13 | 2018-03-13 | Torque fixed direction allocation electric drive axle based on double-rotor machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820338127.8U CN208118930U (en) | 2018-03-13 | 2018-03-13 | Torque fixed direction allocation electric drive axle based on double-rotor machine |
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| CN208118930U true CN208118930U (en) | 2018-11-20 |
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|---|---|---|---|
| CN201820338127.8U Withdrawn - After Issue CN208118930U (en) | 2018-03-13 | 2018-03-13 | Torque fixed direction allocation electric drive axle based on double-rotor machine |
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| Country | Link |
|---|---|
| CN (1) | CN208118930U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112224007A (en) * | 2020-10-26 | 2021-01-15 | 东风汽车集团有限公司 | Special multi-mode hybrid transmission |
| CN108274989B (en) * | 2018-03-13 | 2023-09-15 | 吉林大学 | Torque directional distribution electric drive axle based on double-rotor motor |
-
2018
- 2018-03-13 CN CN201820338127.8U patent/CN208118930U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274989B (en) * | 2018-03-13 | 2023-09-15 | 吉林大学 | Torque directional distribution electric drive axle based on double-rotor motor |
| CN112224007A (en) * | 2020-10-26 | 2021-01-15 | 东风汽车集团有限公司 | Special multi-mode hybrid transmission |
| CN112224007B (en) * | 2020-10-26 | 2021-10-15 | 东风汽车集团有限公司 | Special multi-mode hybrid transmission |
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