CN106438862A - Electric wheel side speed reduction device - Google Patents
Electric wheel side speed reduction device Download PDFInfo
- Publication number
- CN106438862A CN106438862A CN201610897986.6A CN201610897986A CN106438862A CN 106438862 A CN106438862 A CN 106438862A CN 201610897986 A CN201610897986 A CN 201610897986A CN 106438862 A CN106438862 A CN 106438862A
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- Prior art keywords
- wheel
- gear
- power input
- power
- carrier
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Retarders (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses an electric wheel side speed reduction device. The device comprises a main supporting shaft, a wheel frame fixed to the circumference of a rim of an electric wheel, a power input assembly used for inputting power and a planetary speed reduction mechanism arranged in the wheel frame and used for outputting the power to the wheel frame; the power input assembly comprises a power input wheel and a power output wheel, the power output wheel is rotatably arranged on the main supporting shaft, at least one power input wheel is arranged and is in engaging transmission with the power output wheel in an axis parallel or perpendicular manner for power input; a drive motor forms offsetting relative to the planetary speed reduction mechanism, the mounting space can be greatly saved, two synchronous input power can be adopted in the power input wheel, double-motor symmetric arrangement is achieved, structural changeability is achieved, when it is needed, power can be changed, and the use range is wider; in addition, the whole structure has the large transmission ratio, is small in weight, compact in structure and capable of meeting the mounting requirement in the limited space and has the pretty well market generalization performance
Description
Technical field
The present invention relates to electric automobiles, more particularly to a kind of Electric Motor Wheel wheel-side reduction device.
Background technology
The driving of electric motor car forms two kinds of driving for mainly having motor direct-drive and wheel rim deceleration device, wherein, takes turns side
The effect of decelerator is exactly the rotating speed of high-speed electric expreess locomotive transmission and moment of torsion after its reduction of speed increases and turns round, then is delivered to wheel, so as to
Wheel is made under the retroaction of traction, produce compared with large driving force.Transmission effect can be improved using the driving of hub reduction
Rate, room for promotion utilization rate, the power density ratio motor direct-drive height of this type of drive, more competitive, it has also become electricity
The main type of drive of driving wheel.
Existing hub reduction gear is realized preferable reduction of speed and increases the purpose for turning round effect, arrange two more for reaching raising gear ratio
Level or multistage planet mechanism, not only have that volume is big, complex structure, rotating speed are low, noise, and, per grade of planet machine
Structure is both needed to be respectively provided with appropriate gear ratio and enough intensity could meet deceleration demand transmitting torque, but due to car load sky
Between limited so that the planetary mechanism of hub reduction gear size and quality per part can not be guaranteed, so as to reduce deceleration
Effect;The power input of existing planet gear type hub reduction gear is many to be directly inputted from sun gear, and this kind of input mode is same
Cause slowing-down structure overall volume big, structure is not compact enough, wasting space;Therefore, how the row of lightweight, compact conformation is realized
Planetary hub reduction gear becomes current problem demanding prompt solution.
Accordingly, it would be desirable to improve to existing Electric Motor Wheel wheel-side reduction device so as to can ensure that lightweight, structure is tight
While gathering, take up room little, can, slowing effect big with gear ratio good the features such as.
Content of the invention
In view of this, the present invention provides a kind of Electric Motor Wheel wheel-side reduction device, its can ensure lightweight, compact conformation,
While taking up room little, can, low speed effect big with gear ratio good the features such as
A kind of Electric Motor Wheel wheel-side reduction device of the present invention, including main support shaft and Electric Motor Wheel wheel rim circumference fix
Wheel carrier, be used for by power input power input module and be arranged in wheel carrier and subtract for outputting power to the planet of wheel carrier
Fast mechanism;
Power input module includes power input wheel and power output wheel, and power output wheel is rotated and is arranged at main support shaft
On, power input wheel arrange at least one and by diameter parallel or vertical in the way of with power output wheel engaged transmission be used for power
Input;
The sun gear of planetary gear speed reducing mechanism is rotated and is arranged in main support shaft and is coordinated for going with power output wheel transmission
The power input of star reducing gear, the planet carrier of planetary gear speed reducing mechanism forms the clutch end of planetary gear speed reducing mechanism, and planet
Frame is fixedly connected with wheel carrier.
Further, planetary gear speed reducing mechanism also includes planetary gear and gear ring frame, and planetary gear is installed on planet carrier and and the sun
Wheel and gear ring frame are engaged respectively, and gear ring frame overcoat is fixed on support shaft setting, and wheel carrier rotational support is matched with gear ring frame.
Further, the engaged transmission between power input wheel and power output wheel forms reduction gearing auxiliary structure.
Further, sun gear is with the power output wheel by two teeth for rotating the duplicate gear being arranged in main support shaft
Wheel part is formed respectively.
Further, planetary gear be duplex gear planetary wheel, including the first gear portion with sun gear external toothing and with gear ring frame
The second gear portion of internal messing, second gear portion wheel footpath is less than first gear portion wheel footpath.
Further, planet carrier includes the first row carrier and the second planet carrier that respectively planet wheel spindle is arranged to both sides, first
Planet carrier and the second planet carrier are connected by the planet wheel spindle for axially penetrating through duplex gear planetary wheel and be rotatably assorted, the first row carrier
It is fixedly connected with wheel carrier, the second planet carrier is rotatably assorted and is supported on gear ring frame.
Further, gear ring frame include overcoat be fixed on the bracing frame of main support shaft and be arranged on bracing frame and for double
The ring gear of the second gear portion engagement of connection gear planetary wheel, the axially inner side of bracing frame is formed is joined for being rotated with the second planet carrier
The interior necking down for supporting is closed, axially external formation is for the outer necking down of the support that is rotatably assorted with wheel carrier.
Further, the axial inner ends of bracing frame are supported and terminate in the bearing formation positioning for arranging in main support shaft and to sun wheel shape
Become axial limiting.
Further, also include the power input shaft that power input casing and each power input wheel of correspondence are arranged, power is defeated
Cartonning is placed on main support shaft in vitro, and power input shaft rotational support is arranged on power input casing, and wheel carrier is equally rotatably assorted
It is supported in power input casing setting.
The invention also discloses a kind of Electric Motor Wheel of application Electric Motor Wheel wheel-side reduction device, is provided with Electric Motor Wheel in Electric Motor Wheel
Wheel-side reduction device.
Beneficial effects of the present invention:The Electric Motor Wheel wheel-side reduction device of the present invention, the power ultromotivity input of motor
Wheel input, power input wheel by diameter parallel or vertical in the way of with power output wheel engaged transmission be used for power input, even if
Obtaining motor and biasing is configured to respect to planetary reducer, can greatly save installing space, and power input wheel can be adopted
With two synchronizations to input power, that is, the structure that bi-motor is arranged symmetrically is realized, so as to structural variability, when needed may be used
Change power, range is wider;In addition, by the way of power input module is coordinated with planetary gear speed reducing mechanism transmission so that
Overall structure not only has larger gear ratio, and lighter in weight, compact conformation, can meet and install in limited space
Demand, with goodish marketing.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the Electric Motor Wheel wheel-side reduction device principle sketch of the present invention;
Fig. 2 is the Electric Motor Wheel wheel-side reduction device structural representation of the present invention;
Fig. 3 is the structural representation of the Electric Motor Wheel wheel-side reduction device using bi-motor of the present invention.
Specific embodiment
Fig. 1 is the Electric Motor Wheel wheel-side reduction device principle sketch of the present invention, and Fig. 2 is filled for the Electric Motor Wheel hub reduction of the present invention
Structural representation is put, Fig. 3 is the structural representation of the Electric Motor Wheel wheel-side reduction device using bi-motor of the present invention, as shown in the figure:
A kind of Electric Motor Wheel wheel-side reduction device of the present embodiment, including the wheel carrier of 2 circumference of the wheel rim fixation of main support shaft 1 and Electric Motor Wheel
3rd, it is used for the power input module of power input and is arranged in wheel carrier 3 and subtracts for outputting power to the planet of wheel carrier 3
Fast mechanism;Wherein, wheel carrier 3 can be monolithic construction, also detachable structure, and in the present embodiment, wheel carrier 3 is divided into the company of interfixing
The revolver frame 3-1 for connecing and right wheel frame 3-2, wheel carrier 3 is overall to be fixedly connected in a circumferential direction with the wheel rim of Electric Motor Wheel, and power is input into
Component is used for the input of Electric Motor Wheel walking power, and power ultromotivity input module is transmitted to planetary gear speed reducing mechanism, then from planet
Slowing-down structure slows down after increasing is turned round and is transferred to wheel carrier 3, and driving electric wheel unitary rotation;
Power input module includes power input wheel 4 and power output wheel 5, and power output wheel 5 is rotated and is arranged at main support
On axle 1, power input wheel 4 arrange at least one and by diameter parallel or vertical in the way of with 5 engaged transmission of power output wheel use
It is input in power;Electric Motor Wheel is provided with motor 6, and the power ultromotivity wheel for inputting 4 of motor 6 is input into, and power input
Wheel 4 arranges at least one, can be one, two or three certainly, and in the present embodiment, power input wheel 4 arranges two, corresponding
Each power input wheel 4 is provided with a motor 6, and two motors 6 can be in a symmetrical arrangement, and can carry out when needed
Synchronous driving;In addition, power input wheel 4 can be the orthogonal bevel gear pair of axis, alternatively axis phase with power output wheel 5
Mutual parallel spur gear pair, in the present embodiment, power input wheel 4 is the parallel spur gear of axis with power output wheel 5, adopts
The driving gear pair for taking this kind of structure can cause motor 6 to form biasing with respect to the sun gear of planetary gear speed reducing mechanism, so as to
Greatly save space;
The sun gear 7 of planetary gear speed reducing mechanism rotate be arranged in main support shaft 1 and with the transmission of power output wheel 5 coordinate for
The power input of planetary gear speed reducing mechanism, the planet carrier of planetary gear speed reducing mechanism forms the clutch end of planetary gear speed reducing mechanism, parallel
Carrier is fixedly connected with wheel carrier 3;Sun gear 7 is rotatably assorted with main support shaft 1, and power is transferred to sun gear by power output wheel 5
7, finally by planetary gear speed reducing mechanism deceleration increase turn round after power is transferred to by wheel carrier 3 by planet carrier, compact overall structure, and
Weight is substantially reduced.
In the present embodiment, planetary gear speed reducing mechanism also includes planetary gear 9 and gear ring frame 10, and planetary gear 9 is installed on planet carrier
And engaged with sun gear 7 and gear ring frame 10 respectively, 10 overcoat of gear ring frame is fixed on support shaft setting, and 3 rotational support of wheel carrier coordinates
In gear ring frame 10;Support shaft is fixed on using gear ring frame 10, and gear ring frame 10 is arranged in wheel carrier 3, and gear ring frame 10 and wheel carrier 3
Rotational support coordinates, and can bear larger moment of torsion, and axiality is preferable.
In the present embodiment, the engaged transmission between power input wheel 4 and power output wheel 5 forms reduction gearing auxiliary structure;I.e.
The wheel footpath of power input wheel 4 is much smaller than the wheel footpath of power output wheel 5, and forms one between power input wheel 4 and power output wheel 5
Level is slowed down, and planetary reducer is configured to double reduction, increases torsion effect so as to improve reduction of speed.
In the present embodiment, sun gear 7 rotates, by one, the duplicate gear being arranged in main support shaft 1 with power output wheel 5
Two gear parts are formed respectively;It is enclosed within outside the duplicate gear in main support shaft 1, and is rotatably assorted with main support shaft 1 by bearing,
The shaft shoulder spacing to bearing is provided with main support shaft 1, is again provided with to the spacing of bearing axial limiting in duplex gear
Shoulder.
In the present embodiment, planetary gear 9 is duplex gear planetary wheel 9, including the first gear portion 9-1 with 7 external toothing of sun gear
And the second gear portion 9-2 with 10 internal messing of gear ring frame, second gear portion wheel footpath is less than first gear portion 9-1 wheel footpath;Using double
Connection gear planetary wheel 9, it is possible to achieve the regulation of gear ratio, while radial space can be reduced further.
In the present embodiment, planet carrier includes the first row carrier 8 and the second planet carrier that the axial both sides of planetary gear 9 are arranged respectively
8a, the first row carrier 8 and the second planet carrier 8a are connected by the planet wheel spindle 11 for axially penetrating through duplex gear planetary wheel 9 and be rotatably assorted
Connect, the first row carrier 8 is fixedly connected with wheel carrier 3, the second planet carrier 8a is rotatably assorted and is supported on gear ring frame 10;The first row carrier
8 are fixed on 11 one end of planet wheel spindle, and 11 other end of planet wheel spindle is fixedly connected with the second planet carrier 8a, are tied using duplicate rows carrier
Structure, and the second planet carrier 8a is rotatably assorted and is supported on gear ring frame 10, improves job stability, is difficult eccentric wear;In addition, the first row
Carrier 8 is positioned by circlip with 3 connection end of wheel carrier, with 11 connection end of planet wheel spindle by the shaft shoulder positioning on axle.
In the present embodiment, gear ring frame 10 includes that overcoat is fixed on the bracing frame 10-1 of main support shaft 1 and is arranged at bracing frame
The upper and ring gear 10-2 that engage for the second gear portion with duplex gear planetary wheel 9 of 10-1, the axially inner side of bracing frame 10-1
The interior necking down 10-4 for the support that is rotatably assorted with the second planet carrier 8a is formed, axially external formation is used for rotating with wheel carrier 3 joins
Close the outer necking down 10-5 for supporting;As illustrated, cover plate 14 is fixed with main support shaft 1 by bracing frame 10-1 by bolt, bracing frame
The middle part of 10-1 is formed with the axle sleeve 10-3 for being coated at main support shaft 1, and wheel carrier 3 is rotatably assorted the axial outer end that is supported in axle sleeve
In the necking down of outer shaft part, the second planet carrier 8a be rotatably assorted the axial inner ends for being supported in axle sleeve interior shaft part necking down on, i.e.,
All it is coaxially disposed between two planet carrier 8a, bracing frame 10-1 and wheel carrier 3, is not only easy in installation process ensure axiality, directly
Installation is connect, installation effectiveness is improved, and is not in axiality problem during life-time service, will not between kinematic pair
There is eccentric wear, beneficial to the service life for extending whole deceleration device, reduce use cost.
In the present embodiment, the axial inner ends of bracing frame 10-1 are supported and terminate in the shaft shoulder formation positioning for arranging in main support shaft 1 simultaneously
Axial limiting is formed to sun gear 7.
In the present embodiment, also include the power input shaft that power input casing 12 and each power input wheel 4 of correspondence are arranged
13, power input casing 12 is coated at main support shaft 1, and 13 rotational support of power input shaft is arranged on power input casing 12,
Wheel carrier 3 be equally rotatably assorted be supported in power input casing 12 arrange;Power input magazine body is formed with the support supported by wheel carrier
Portion, wheel carrier is supported and is arranged on supporting part 12-1 and is rotatably assorted by bearing.
The invention also discloses a kind of Electric Motor Wheel of application Electric Motor Wheel wheel-side reduction device, is provided with Electric Motor Wheel in Electric Motor Wheel
Wheel-side reduction device;Electric Motor Wheel also includes wheel portion, and wheel portion includes wheel rim 2 and tire, and wheel rim 2 is fixed even with wheel carrier 3
Connect.
Finally illustrate, above example is only unrestricted in order to technical scheme to be described, although with reference to relatively
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, the objective without deviating from technical solution of the present invention and scope, and which all should be covered at this
In the middle of the right of invention.
Claims (10)
1. a kind of Electric Motor Wheel wheel-side reduction device, it is characterised in that:Including main support shaft and Electric Motor Wheel wheel rim circumference fix
Wheel carrier, be used for by power input power input module and be arranged in wheel carrier and subtract for outputting power to the planet of wheel carrier
Fast mechanism;
The power input module includes power input wheel and power output wheel, and the power output wheel is rotated and is arranged at the master
In support shaft, the power input wheel arrange at least one and by diameter parallel or vertical in the way of nibble with the power output wheel
Close transmission to be input into for power;
The sun gear of the planetary gear speed reducing mechanism is rotated and is arranged in the main support shaft and is joined with power output wheel transmission
The power input in planetary gear speed reducing mechanism is shared, the power of the planet carrier formation planetary gear speed reducing mechanism of the planetary gear speed reducing mechanism is defeated
Go out end, and the planet carrier is fixedly connected with the wheel carrier.
2. Electric Motor Wheel wheel-side reduction device according to claim 1, it is characterised in that:The planetary gear speed reducing mechanism also includes
Planetary gear and gear ring frame, the planetary gear is installed on the planet carrier and is engaged with sun gear and gear ring frame respectively, the tooth
Coil overcoat is fixed on support shaft setting, and the wheel carrier rotational support is matched with the gear ring frame.
3. Electric Motor Wheel wheel-side reduction device according to claim 1, it is characterised in that:The power input wheel is dynamic with described
Engaged transmission between power output wheel forms reduction gearing auxiliary structure.
4. Electric Motor Wheel wheel-side reduction device according to claim 1, it is characterised in that:The sun gear is defeated with the power
Two gear parts for going out the duplicate gear that wheel is arranged in main support shaft by a rotation are formed respectively.
5. Electric Motor Wheel wheel-side reduction device according to claim 2, it is characterised in that:The planetary gear is duplex-gear planet
Wheel, including the first gear portion with sun gear external toothing and the second gear portion with gear ring frame internal messing, the second gear portion
Wheel footpath is less than first gear portion wheel footpath.
6. Electric Motor Wheel wheel-side reduction device according to claim 5, it is characterised in that:The planet carrier includes planet respectively
The first row carrier and the second planet carrier that wheel shaft is arranged to both sides, the first row carrier and second planet carrier are by axially
Through duplex gear planetary wheel and the planet wheel spindle connection that is rotatably assorted, the first row carrier is fixedly connected with wheel carrier, and described the
Two planet carriers are rotatably assorted and are supported on the gear ring frame.
7. Electric Motor Wheel wheel-side reduction device according to claim 6, it is characterised in that:The gear ring frame includes that overcoat is fixed
Bracing frame and the internal tooth for being arranged on bracing frame and engaging for the second gear portion with duplex gear planetary wheel in main support shaft
Circle, the axially inner side of support frame as described above forms the interior necking down for the support that is rotatably assorted with the second planet carrier, axially external formation
Outer necking down for the support that is rotatably assorted with wheel carrier.
8. Electric Motor Wheel wheel-side reduction device according to claim 7, it is characterised in that:The axial inner ends of support frame as described above are supported
Terminate in the bearing for arranging in main support shaft to form positioning and form axial limiting to sun gear.
9. Electric Motor Wheel wheel-side reduction device according to claim 1, it is characterised in that:Also include power input casing and right
The power input shaft for answering each power input wheel to arrange, power input magazine is placed on main support shaft in vitro, and the power input shaft turns
Dynamic support is arranged on power input casing, and the wheel carrier is equally rotatably assorted and is supported in power input casing setting.
10. a kind of application claim 1-9 any claim described in Electric Motor Wheel wheel-side reduction device Electric Motor Wheel, its feature
It is:The Electric Motor Wheel wheel-side reduction device is installed in the Electric Motor Wheel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610897986.6A CN106438862A (en) | 2016-10-14 | 2016-10-14 | Electric wheel side speed reduction device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610897986.6A CN106438862A (en) | 2016-10-14 | 2016-10-14 | Electric wheel side speed reduction device |
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CN201610897986.6A Pending CN106438862A (en) | 2016-10-14 | 2016-10-14 | Electric wheel side speed reduction device |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106956579A (en) * | 2017-05-08 | 2017-07-18 | 重庆大学 | Hollow motor formula electric automobile driving switching and transmission gear shift system |
CN106956584A (en) * | 2017-04-10 | 2017-07-18 | 深圳市万维博新能源技术有限公司 | Many motor multi gear wheel hub power devices |
CN107009891A (en) * | 2017-03-13 | 2017-08-04 | 湖北航天技术研究院特种车辆技术中心 | One kind wheel side electric driver |
WO2019037744A1 (en) * | 2017-08-23 | 2019-02-28 | 郑州宇通客车股份有限公司 | Electric vehicle and hub drive mechanism thereof |
CN109578524A (en) * | 2018-12-11 | 2019-04-05 | 中国北方车辆研究所 | Wheel motor drive device single-stage helical teeth planetary reduction gear |
CN109882557A (en) * | 2019-03-21 | 2019-06-14 | 吉林博承传动系统科技有限公司 | A kind of compound planet gear hub reduction gear |
CN109895611A (en) * | 2017-12-11 | 2019-06-18 | 郑州宇通客车股份有限公司 | A kind of pure electric automobile and its wheel edge system |
CN111637199A (en) * | 2020-06-09 | 2020-09-08 | 祝宗煌 | Planetary differential speed reducing mechanism and speed reducer |
CN112440731A (en) * | 2019-08-27 | 2021-03-05 | 比亚迪股份有限公司 | Hub reduction gear, hub power assembly and vehicle |
CN112440618A (en) * | 2019-08-27 | 2021-03-05 | 比亚迪股份有限公司 | Drive axle assembly and vehicle |
CN112805168A (en) * | 2018-09-19 | 2021-05-14 | 采埃孚股份公司 | Shaft drive |
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CN204674379U (en) * | 2015-05-15 | 2015-09-30 | 比亚迪股份有限公司 | A kind of driving axis |
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US6006870A (en) * | 1997-03-08 | 1999-12-28 | Zf Friedrichshafen Ag | Disc brake arrangement for an individual wheel drive |
CN202573773U (en) * | 2012-02-17 | 2012-12-05 | 苏州市莱赛电车技术有限公司 | Double-motor input wheel hub reducer for electric motor coach |
CN202899191U (en) * | 2012-11-14 | 2013-04-24 | 三一重通机械有限公司 | Final drive structure and earthmover |
JP2015218865A (en) * | 2014-05-20 | 2015-12-07 | 日産自動車株式会社 | Electric drive device |
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Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107009891A (en) * | 2017-03-13 | 2017-08-04 | 湖北航天技术研究院特种车辆技术中心 | One kind wheel side electric driver |
CN107009891B (en) * | 2017-03-13 | 2023-11-21 | 湖北航天技术研究院特种车辆技术中心 | Wheel-side electric driving device |
CN106956584B (en) * | 2017-04-10 | 2020-07-10 | 深圳市万维博新能源技术有限公司 | Multi-motor multi-gear hub power device |
CN106956584A (en) * | 2017-04-10 | 2017-07-18 | 深圳市万维博新能源技术有限公司 | Many motor multi gear wheel hub power devices |
CN106956579B (en) * | 2017-05-08 | 2023-12-01 | 重庆大学 | Hollow motor type electric automobile driving switching and transmission speed changing system |
CN106956579A (en) * | 2017-05-08 | 2017-07-18 | 重庆大学 | Hollow motor formula electric automobile driving switching and transmission gear shift system |
CN109421512A (en) * | 2017-08-23 | 2019-03-05 | 郑州宇通客车股份有限公司 | Electric vehicle and its Direct wheel drives mechanism |
WO2019037744A1 (en) * | 2017-08-23 | 2019-02-28 | 郑州宇通客车股份有限公司 | Electric vehicle and hub drive mechanism thereof |
CN109895611A (en) * | 2017-12-11 | 2019-06-18 | 郑州宇通客车股份有限公司 | A kind of pure electric automobile and its wheel edge system |
CN112805168A (en) * | 2018-09-19 | 2021-05-14 | 采埃孚股份公司 | Shaft drive |
CN109578524A (en) * | 2018-12-11 | 2019-04-05 | 中国北方车辆研究所 | Wheel motor drive device single-stage helical teeth planetary reduction gear |
CN109882557A (en) * | 2019-03-21 | 2019-06-14 | 吉林博承传动系统科技有限公司 | A kind of compound planet gear hub reduction gear |
CN112440731A (en) * | 2019-08-27 | 2021-03-05 | 比亚迪股份有限公司 | Hub reduction gear, hub power assembly and vehicle |
CN112440618A (en) * | 2019-08-27 | 2021-03-05 | 比亚迪股份有限公司 | Drive axle assembly and vehicle |
CN112440618B (en) * | 2019-08-27 | 2023-11-14 | 比亚迪股份有限公司 | Driving axle assembly and vehicle |
CN111637199A (en) * | 2020-06-09 | 2020-09-08 | 祝宗煌 | Planetary differential speed reducing mechanism and speed reducer |
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Application publication date: 20170222 |
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