CN109130837A - A kind of electronic wheel apparatus of low-speed big and automobile - Google Patents
A kind of electronic wheel apparatus of low-speed big and automobile Download PDFInfo
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- CN109130837A CN109130837A CN201811066721.7A CN201811066721A CN109130837A CN 109130837 A CN109130837 A CN 109130837A CN 201811066721 A CN201811066721 A CN 201811066721A CN 109130837 A CN109130837 A CN 109130837A
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- 241000239290 Araneae Species 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 description 26
- 238000013461 design Methods 0.000 description 9
- 230000002411 adverse Effects 0.000 description 8
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- 230000005611 electricity Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 1
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- 239000000969 carrier Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
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- 238000004134 energy conservation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000036316 preload Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
-
- 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
-
- 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
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses a kind of electronic wheel apparatus of low-speed big, comprising: hub motor, with motor housing；First planetary gear row comprising the first sun gear, the first ring gear, the first planet axis and first planet carrier；First sun gear is fixed the motor shaft for being arranged hub motor, can be rotated at the same speed relative to motor shaft；Second epicyclic gear train comprising the second sun gear, the second ring gear, the second planet row and the second planet carrier；Second sun gear, is rotatably supported on the motor shaft of hub motor, can be relative to motor shaft differential speed rotation；And the second sun gear is set in the first planet axis simultaneously, can be rotated synchronously with first planet carrier；Wheel rim is fixedly connected with the second ring gear, can be rotated with the second ring gear, for exporting rotary power.The invention also discloses a kind of automobiles using the electronic wheel apparatus of low-speed big.
Description
Technical field
The present invention relates to Electric Motor Wheel construction applications, and in particular to a kind of electronic wheel apparatus of low-speed big and automobile.
Background technique
As the important development direction of current new-energy automobile technology, electric car mainly includes hybrid vehicle, combustion
Expect battery car and pure electric automobile etc..Wherein, pure electric automobile is that one kind by driving motor of power battery provides driving energy
Source is in a manner of driving vehicle to travel.Presently, in all pure electric automobile configuration schemes, using by motor directly and vehicle
The integrated scheme of wheel, i.e. Electric Motor Wheel scheme, are promoted most beneficial for vehicle performance.And in these Electric Motor Wheel schemes, and can be with
It is divided into two kinds of citation forms of direct drive Electric Motor Wheel and wheel rim deceleration device Electric Motor Wheel, direct drive Electric Motor Wheel uses low speed
Outer rotor motor, wheel rim deceleration device Electric Motor Wheel use high speed inner rotor motor.In general, high speed inner rotor motor
Torque itself is smaller, and the vehicle dynamic quality using which driving is insufficient, so, high speed inner rotor motor often takes wheel side
Retarder carries out deceleration torque increase to motor output, under the premise of output power is basically unchanged, to improve vehicle dynamic property.
However, often because structure is complicated, occupied space is big when using high speed inner rotor motor wheel rim deceleration device,
The problems such as total quality is excessive eventually leads to the problems such as unsprung mass increases severely to influence installation of the final Electric Motor Wheel on vehicle
With use.
In-wheel-motor driving technology has initially entered the products application stage in external civilian vehicle field.Domestic In-wheel-motor driving electricity
Electrical automobile is in the technical research stage, and external Main Auto company has developed electric wheel drive vehicle.The U.S., Germany, method
State, Japan etc. in the research for carrying out military Technology of Hybrid Electric Vehicle, have been all made of In-wheel-motor driving+hybrid power bar none
Scheme.It can be seen that having become the important directions of future new era drive system of electric automobile development using In-wheel-motor driving.And it is electric
Driving wheel is the key that then the technology assembly, has energy conservation, the letter of high efficiente callback braking energy, complete vehicle structure using the automobile of the technology
The advantages that change.
Application No. is in the Chinese patent application of 201610269786.6 and 201710507523.9, the two-stage row of use
Star gearing configurations have that power adverse current recycles in being formed, this feature to be input to two-stage planet by motor
The power of gear reduction cannot be output to wheel rim end completely, and a portion is in adverse current is formed with heat during circulation
Form consume, also easily cause deceleration mechanism internal temperature excessively high while inefficient, reduce deceleration mechanism interior oil profit
Sliding reliability, so that eventually affecting the service life of entire Electric Motor Wheel；Meanwhile in 201710507523.9 Chinese patent
In application, since for the second planet row in inside, the first planet comes outside, and the second internal tooth of the second planet row in original design
Circle is used as power output end, is connected with automobile rim, leads to the first planet row being located on the outside of the second planet row while also being located at
On the outside of automobile rim, along with the sealing device and bearing support assembly of the exclusive side of the first planet, entire electronic wheel apparatus is being taken turns
Hub end will be a bulk of to protrusion on the outside of wheel rim, that is to say, that only the second planet row, which can embed, in original design is mounted on electricity
In casing cavity, and the first planet row is still arranged on the outside of motor casing, the wheel rim deceleration of this and general type in the market
The high speed inner rotor motor difference of device is not big enough, and the space of saving is insufficient, and the setting that this is easy to influence vehicle wheelspan is empty
Between and electric wheel drive vehicle using the device travel safety, i.e., former design structure compactedness and reasonability are insufficient.
The Electric Motor Wheel apparatus structure of the present high speed inner rotor motor using wheel rim deceleration device is complicated, integrated level compared with
Low, occupied space is big, for example the Direct wheel drives bridge of ZF company, these problems hinder the application of In-wheel-motor driving technology significantly.
And if In-wheel-motor driving drives scheme using straight, the program will export low speed high torque, just necessarily require motor to export high current,
This makes electric efficiency low, and heat dissipation is low, and technically realizes difficult.
Summary of the invention
Based on problems of the prior art, the present invention has designed and developed a kind of electronic wheel apparatus of low-speed big, this
The goal of the invention of invention can make power be transmitted to wheel through the second ring gear first is that passing through and changing two-stage planet row installation site
Hub, realizing double reduction mechanism can be embedded in completely in the cavity of motor itself, and structure height is compact, is greatly reduced and adopts
With the arrangement space requirement of the In-wheel-motor driving electric car of the design configuration, also due to the simplification of structure reduce it is electronic
The quality of wheel apparatus is to alleviate the adverse effect that unsprung mass increases bring vehicle performance.
The second object of the present invention is to the power for solving the problems, such as to slow down in-house adverse currents to form interior circulation, make power
Transfer route is linearly unidirectional, and no power adverse current forms interior circulation and is dissipated in inside planetary gear mechanisms for two stages, and efficiency mentions significantly
While high, temperature rise is slowed down, and is conducive to the service life for improving overall configuration.
The invention also discloses a kind of automobile using the electronic wheel apparatus of low-speed big, goal of the invention of the invention be through
The power exported by hub motor, the deceleration torque increase effect by two-stage planet deceleration mechanism, vehicle wheel hub end are up to
The effect of low-speed big, this will greatly improve the dynamic property of electric wheel drive vehicle.
Technical solution provided by the invention are as follows:
A kind of electronic wheel apparatus of low-speed big, comprising:
Hub motor, with motor housing；
First planetary gear row comprising the first sun gear, the first ring gear, the first planet axis and first planet carrier；
First sun gear fixes the motor shaft for being arranged the hub motor, can be same relative to the motor shaft
Speed rotation；
Second epicyclic gear train comprising the second sun gear, the second ring gear, the second planet row and the second planet carrier；
Second sun gear, is rotatably supported on the motor shaft of the hub motor, can be relative to described
Motor shaft differential speed rotation；And second sun gear is set in first planet axis simultaneously, can be with the first row
Carrier rotates synchronously；
Wherein, first ring gear is fixedly mounted in the motor housing, and fixation is set in second row
On star axis, second planet axis is fixedly connected with second planet carrier simultaneously；
Wheel rim is fixedly connected with second ring gear, can be rotated synchronously with second ring gear, for that will revolve
Rotatory force output.
Preferably, further includes: rotor field spider, permanent magnet and rotor core；
Wherein, rotor field spider is fixed on the motor shaft of the hub motor, and the permanent magnet is fixed on the rotor branch
On frame, rotor core is fixed on the motor housing.
Preferably, the motor housing includes that two sides are recessed inwardly to form the big shell of motor and the small shell of motor, the motor
Big shell is fixedly connected with the small shell of the motor；
Wherein, the space formed after the big shell of the motor is fixedly connected with the small shell of the motor is arranged in the rotor field spider
It is interior；And
The first planetary gear row and second epicyclic gear train are fixed in the big shell of the motor being recessed inwardly.
Preferably, the small shell of the motor is supported on the motor shaft by tapered roller bearing.
Preferably, further includes:
At least one first planetary gear, through the first needle roller support in first planet axis, and described first
Needle roller is limited by the first block；And
At least one second planetary gear, through the second needle roller support in second planet axis, and described second
Needle roller is limited by the second block.
Preferably, further includes: support bushing, one end empty set, can be relative to the motors on the motor shaft
Axis differential speed rotation, the other end and the second sun gear inner hole surface clearance fit, make the rotatable support of the second sun gear
On the support bushing.
Preferably, further includes: multiple circlip for shaft are separately positioned on first planet axis and described first
Between planet carrier；
Between first planet axis and second sun gear；
Between first ring gear and second planet axis；
Between second planet axis and second planet carrier；And/or
Between first sun gear and the motor shaft.
Preferably, further includes: small shell seal disc is connected on the small shell of the motor.
Preferably, further includes:
First tapered roller bearing is used to that the first planet carrier to be made to be supported on the motor shaft；And
Second tapered roller bearing is used to that the big shell of the motor to be made to be supported on the motor shaft.
A kind of automobile is driven using the electronic wheel apparatus of low-speed big.
The present invention compared with prior art possessed by the utility model has the advantages that
1, the electronic wheel apparatus of the present invention with two-stage planet deceleration mechanism passes through to hub motor and two-stage
The deceleration torque increase effect of the integration realization of planetary gear reducing mechanism high speed inner-rotor-type Electric Motor Wheel, solves In-wheel motor driving
Torque is insufficient, it is difficult to the problem of being applied to large truck；
2, the electronic wheel apparatus of low-speed big of the present invention passes through to two-stage planet deceleration mechanism and wheel hub electricity
The Integrated design of machine, the configuration can make power be transmitted to wheel hub, and the first planet through the second ring gear of the second planet row
It comes on the inside of cavity, the second planet row is all disposed within wheel rim in the exclusive side of the first planet, i.e. two-stage planet deceleration mechanism
Inside, in contrast to the high speed inner rotor motor structure of existing general wheel rim deceleration device, motor has been fully utilized in this configuration
The cavity of itself is embedded to arrange lower double reduction mechanism, and the electronic wheel apparatus overall dimensions after integrating change less, and can be complete
Device is in rim for automobile wheel inner space.Relative to the high speed inner rotor motor of general wheel rim deceleration device, the device collection
It is high at degree, it is compact to tell compact and reasonable, it occupies little space, keeps the electric automobile whole structure for equipping this Electric Motor Wheel significantly simple
Change, the arrangement space requirement of the In-wheel-motor driving electric car using the design configuration is greatly reduced, is conducive to improve
Space is taken inside vehicle, is brought also due to the simplification of structure reduces the quality of electronic wheel apparatus with alleviating unsprung mass increase
Vehicle performance adverse effect；Meanwhile compared to application No. is in 201610269786.6 and 201710507523.9
The configuration designed in state's patent application, under the premise of number of gear teeth and constant modulus, the transmitting speed ratio of the design configuration also phase
It is poor little, declined in the basic capacity of deceleration torque increase there is no the change because of two-stage planet configuration, instead
Structure more compact and reasonable.
3, completely new two-stage planet configuration of the present invention avoids the power for slowing down in-house adverse current from being formed
The problem of interior circulation.In the design configuration, after power of motor is transmitted to the first sun gear via motor shaft, respectively via the first row
Star-wheel, the first planet axis, the second sun gear, the second planetary gear, the second ring gear pass out, and arrival is connected with the second ring gear
Wheel rim end.Its power transfer route is linearly unidirectional, and no power adverse current forms interior circulation and is dissipated in planetary gear mechanisms for two stages
Inside, while efficiency greatly improves, temperature rise is slowed down, and is conducive to the service life for improving overall configuration.
Detailed description of the invention
Fig. 1 is the sectional view of the internal structure of low-speed big Electric Motor Wheel of the present invention.
Fig. 2 is the sectional view of the internal structure of motor of low-speed big Electric Motor Wheel of the present invention.
Fig. 3 is the sectional view of the two-stage planet deceleration mechanism of low-speed big Electric Motor Wheel of the present invention.
Fig. 4 is the main view of the motor shaft structure of low-speed big Electric Motor Wheel of the present invention.
Fig. 5 a is the main view of the second sun wheel construction of low-speed big Electric Motor Wheel of the present invention.
Fig. 5 b is the sectional view of the second sun wheel construction of low-speed big Electric Motor Wheel of the present invention.
Fig. 6 a is the main view of the first annular gear structure of low-speed big Electric Motor Wheel of the present invention.
Fig. 6 b is the sectional view of the first annular gear structure of low-speed big Electric Motor Wheel of the present invention.
Fig. 7 a is the main view of the support bushing structure of low-speed big Electric Motor Wheel of the present invention.
Fig. 7 b is the sectional view of the support bushing structure of low-speed big Electric Motor Wheel of the present invention.
Fig. 7 c is the support bushing assembling schematic diagram of low-speed big Electric Motor Wheel of the present invention.
Fig. 8 a is the main view of the first planetary shaft structure of low-speed big Electric Motor Wheel of the present invention.
Fig. 8 b is the sectional view of the first planetary shaft structure of low-speed big Electric Motor Wheel of the present invention.
Fig. 9 a is the main view of the second planetary shaft structure of low-speed big Electric Motor Wheel of the present invention.
Fig. 9 b is the sectional view of the second planetary shaft structure of low-speed big Electric Motor Wheel of the present invention.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
As shown in Figure 1, the present invention provides a kind of electronic wheel apparatus of low-speed big to realize above-mentioned function.The wheel
Hub motor uses high speed inner rotor core, and a two-stage planet tooth is then connected at rotor output end, that is, motor shaft
Deceleration mechanism is taken turns, deceleration torque increase is carried out to motor output using the deceleration mechanism, so that integral electric wheel apparatus has low speed big
The characteristics of torque；Meanwhile the integrated complete device of two-stage planet deceleration mechanism is big in the motor of the hub motor
In the cavity of shell, and it is integrated after deceleration mechanism and hub motor complete device is compact-sized inside rim for automobile wheel together,
Integrated level is high, occupies little space, convenient for the promotion of arrangement and seating space.
Hub motor of the invention is by rotor core 26, rotor field spider 30, the big shell 25 of motor, the small shell 29 of motor, motor shaft
36 compositions；Wherein, rotor field spider 30 and motor shaft 36 are connected by hexagon socket head cap screw 31, the big shell 25 of motor be recessed inwardly to be formed it is recessed
Chamber, to integrate two-stage planet deceleration mechanism, the big shell 25 of motor is supported on motor shaft 36 by tapered roller bearing 40,
The small shell 29 of motor is connect by hex head screw 33 with small shell seal disc 32, by extremely between small shell seal disc 32 and motor shaft 36
Few three piston rings 35 are sealed.
Two-stage planet deceleration mechanism is made of the first, second epicyclic gear train；Wherein, the first planet of the invention
Gear row is made of the first sun gear 6, the first planetary gear 1, first planet carrier 43, the first ring gear 22 and the first planet axis 4；Its
In, the fixation of the first sun gear 6 is set on motor shaft 36, with 36 synchronous rotary of motor shaft, the first sun gear 6 axis elasticity gear
7 limit of circle, prevents 6 axial motion of the first sun gear；43 sets of first planet carrier in 4 one end of the first planet axis, and with axis elasticity
Retaining ring 42 blocks limit；First planet carrier 43 is supported on the motor shaft 36 by tapered roller bearing 41；The circular cone rolling
Sub- bearing 41 and the tapered roller bearing 40 are installed face-to-face；The main body of first ring gear 22 is fitted in big 25 cavity of shell of motor
Interior, it is indefinite that the first ring gear 22 is fixed together with the big shell 25 of motor；Second epicyclic gear train of the invention by the second sun gear 8,
Second planetary gear 21, the second planet carrier 20, the second ring gear 24, the second planet axis 18 composition；Wherein, 8 main body of the second sun gear
Empty set is on motor shaft 36, and with 36 differential speed rotation of motor shaft, 8 big end of the second sun gear is set in the first planet axis 4, and uses axis
Limit, 43 synchronous rotary of the second sun gear 8 and first planet carrier are blocked with circlip 3；Second sun gear, 8 small end inner hole surface with
9 small end outer ring surface clearance fit of support bushing, i.e., the second sun gear 8 is rotatable is supported on support bushing 9；First internal tooth
It encloses 22 small ends to be set on 18 one end of the second planet axis, and blocks limit with circlip for shaft 19；Second planet axis 18 is another
End is entangled by second planet carrier 20, and blocks limit with circlip for shaft 17；Second planet carrier 20, the first ring gear 22
It is fixed together with the big shell 25 of motor；Second ring gear 24 is connect with wheel hub 15 by boss bolt 23；Wheel hub 15 and support
The ring wall of bushing 9 is interference fitted, and wheel hub 15 is supported on motor shaft 36 by hub bearing 13；Justified spiral shell in 13 side of hub bearing
Mother 11 pre-tightens limit, and the other side is held out against by wheel hub 15；15 side of wheel hub is held out against with hub bearing 13, and the other side then holds out against support lining
Set 9；9 side of support bushing is held out against by wheel hub 15, and the other side, i.e. small end are then held out against by 8 small end boss of the second sun gear；Wheel hub
15 outsides are sealed by seal closure 10.
As shown in Figure 1, it is transmitted to the first sun gear 6 via motor shaft 36 from the power that motor rotor rack 30 exports, then
To the first planetary gear 1, because the first ring gear 22 is fixed, power is passed from the first planetary gear 1 via the first planet axis 4
It is delivered to the second sun gear 8 of set on it, then is transmitted on the second planetary gear 21, because of the second planet carrier 20 and the first ring gear
22 be fixed on it is stationary on the big shell 25 of motor, so power is directly delivered to the second ring gear 24 via the second planetary gear 21
On, finally it is transmitted on wheel via wheel hub 15.
In another embodiment, hub motor structure further include: rotor core 26, permanent magnet 28；Wherein, rotor core
26 are fixed on the big shell 25 of motor；Permanent magnet 28 is fixed on rotor field spider 30；The big shell 25 of motor and the small shell 29 of motor pass through six
Hex bolt 27 connects；The exoskeletal rubber oil of device J-type between the big shell 25 of motor, 36 three of tapered roller bearing 40 and motor shaft
Envelope 39 is sealed；The small shell 29 of motor is supported on motor shaft 36 by tapered roller bearing 34；Tapered roller bearing 34 passes through
Round nut 37 pre-tightens limit.
In another embodiment, first planetary gear arranges structure further include: needle roller components 2, L-type block；Wherein, first
Planetary gear 1 is supported in the first planet axis 4 by needle roller components 2；A L-type block 5 is respectively used to limit in 2 left and right ends of needle roller components
Position.
In another embodiment, the second epicyclic gear train structure further include: needle roller components 16, L-type block 14；Wherein,
Second planetary gear 21 is supported in the second planet axis 18 by needle roller components 16, and left and right ends respectively use a L-type block 14 to limit.
The invention proposes a kind of devices of high integration, slow down for hub motor of the invention, two-stage planet
Mechanism is integrated, and device is inside rim for automobile wheel.
Embodiment
In conjunction with attached drawing 1~9, the present invention is described in further detail below, to enable those skilled in the art's reference say
Bright book text can be implemented accordingly.
As shown in Figure 1, the rotor field spider 30 of hub motor is connect with motor shaft 36；Then motor shaft 36 again with first sun
6 connection of wheel；36 shaft shoulder of motor shaft is withstood in first sun gear, 6 one end, and the other end is blocked by circlip for shaft 7；First sun gear 6
It is engaged with the first planetary gear 1；First planetary gear 1 is supported in the first planet axis 4 by needle roller components 2；And needle roller components 2 or so
Both ends are limited by L-type block 5；First planet axis, 4 one end is entangled by first planet carrier 43, and the other end is big by the second sun gear 8
End cap is lived；Wherein, first planet carrier 43 is supported on motor shaft 36 by tapered roller bearing 40；First planetary gear 1 is also with
The engagement of one ring gear 22, and the press fitting of the first ring gear 22 is fixed on inside big 25 cavity of shell of motor, it is stationary；Second sun gear
8 main body empty sets are on motor shaft 36, and 36 differential speed rotation of motor shaft, and its small end also with 9 small end clearance fit of support bushing, i.e.,
Second sun gear 8 is rotatably supported on support bushing 9；The big end cap of second sun gear 8 is in the first planet axis 4, then by axis
It is blocked with circlip 3；Second sun gear 8 and first planet carrier 43 are rotated with revolving speed；Second sun gear 8 also with the second planetary gear
21 engaged transmissions；Second planetary gear 21 is supported in the second planet axis 18 by needle roller components 16, and 16 both sides of needle roller components are by L
Type block 14 limits；Second planet axis, 18 one end is entangled by 22 small end of the first ring gear, is blocked by circlip for shaft 19, another
End is entangled by the second planet carrier 20, then is blocked by circlip for shaft 17；Second planet carrier 20 and the first ring gear 22 are solid together
It is scheduled on the big shell 25 of motor, it is stationary；Second planetary gear 21 also with the engaged transmission of the second ring gear 24；Second ring gear 24 with
Hub for vehicle wheel 15 is connected by boss bolt 23；Wheel hub 15 is supported on motor shaft 36 by hub bearing 13；By round nut 11
Hub bearing 13 is withstood in preload, then withstands wheel hub 15 by hub bearing 13, withstands support bushing 9, support lining followed by wheel hub 15
Set 9 heads on the second sun gear 8, and the second sun gear 8 heads on the first planet axis 4 by big end, and then the first planet axis 4 heads on first
Planet carrier 43, first planet carrier 43 are withstood on tapered roller bearing 41, and tapered roller bearing 41 heads on the circle of face-to-face device again
Taper roller bearing 40, last tapered roller bearing 40 withstand big 25 convex shoulder of shell of motor；15 outside of wheel hub is sealed by seal closure 10；Electricity
The small shell 29 of machine and the big shell 25 of motor are bolted；The small shell of motor is supported on motor shaft 36 by tapered roller bearing 34,
Then the bearing pre-tightens dieback by round nut 37；It is sealed by small shell seal disc 32 with piston ring 35 on the outside of the small shell 29 of motor.
As shown in Fig. 2, rotor core 26 is fixed on the big shell 25 of motor；Permanent magnet is fixed on rotor field spider 30；Electricity
The big shell 25 of machine and the small shell 29 of motor are connected by hexagon-headed bolt 27；The big shell 25 of motor, tapered roller bearing 40 and motor shaft 36
The exoskeletal rubber oil sea 39 of device J-type is sealed between three；The small shell 29 of motor is supported on electricity by tapered roller bearing 34
On arbor 36；Tapered roller bearing 34 pre-tightens limit by round nut 37；Rotor field spider 30 and motor shaft 36 pass through interior hexagonal spiral shell
Bolt 31 connects；The big shell 25 of motor is recessed inwardly to form cavity, to integrate two-stage planet deceleration mechanism；The big shell 25 of motor is logical
Tapered roller bearing 40 is crossed to be supported on motor shaft 36；The small shell 29 of motor is connected by hex head screw 33 and small shell seal disc 32
It connects；It is sealed between small shell seal disc 32 and motor shaft 36 by least three piston rings 35.
As shown in Fig. 3, the first sun gear 6 fixation is set on motor shaft 36, with 36 synchronous rotary of motor shaft；The first row
43 sets of carrier are blocked limit in 4 one end of the first planet axis, and with circlip for shaft 42；First planet carrier 43 passes through taper roller
Bearing 41 is supported on motor shaft 36；The main body of first ring gear 22 is fitted in big 25 cavity of shell of motor, and fixation is indefinite；Second
8 main body empty set of sun gear is on motor shaft 36, with 36 differential speed rotation of motor shaft；Second sun gear, 8 big end is set in the first planet
On axis 4, and limit, 43 synchronous rotary of the second sun gear 8 and first planet carrier are blocked with circlip for shaft 3；Second sun gear 8
Small end inner hole surface and 9 small end outer ring surface clearance fit of support bushing, i.e., the second sun gear 8 is rotatable is supported on support bushing
On 9；First ring gear, 22 small end is set on 18 one end of the second planet axis, and blocks limit with circlip for shaft 19；Second
18 other end of planet axis is entangled by the second planet carrier 20, and blocks limit with circlip for shaft 17；Second planet carrier 20 and
One ring gear is fixed together；Second ring gear 24 is connect with wheel hub 15 by boss bolt 23.
As shown in Fig. 4, the main body a empty set of the second sun gear 8 is on motor shaft 36；The hole big end b is covered in the first planet axis 4
On；Small end inner hole surface c and 9 small end outer ring surface clearance fit of support bushing；Small end boss d is for withstanding support bushing.
As shown in attached drawing 5a, 5b, the main body a of the first ring gear 22 is fitted in big 25 cavity of shell of motor；The hole small end b covers
In second planet axis 18.
As shown in attached drawing 6a, 6b, small end outer ring surface a and 8 gap small end inner hole surface c of the second sun gear of support bushing 9 are matched
It closes；Convex shoulder b withstands 8 small end boss d of the second sun gear；Main body c empty set is on motor shaft 36；Ring wall d sticks into the groove of wheel hub 15
It is interior；Side e is compressed by hub for vehicle wheel 15.
As shown in attached drawing 7a, 7b, 7c, threaded hole is for the connection between rotor field spider 30 at a of motor shaft 36；At b
Involute spline is used for being fixedly connected between the first sun gear 6；Groove c is used to limit the axis elasticity of the first sun gear 6
Retaining ring 7；Grooves d is used for device piston ring 35, in order to form piston ring sealing and labyrinth sealing between small shell seal disc 32.
As shown in attached drawing 8a, 8b, the main body a of the first planetary shaft structure is used to support needle roller components 2；For being arranged at b
Two sun gears, 8 big end；For being arranged first planet carrier 43 at c；Grooves d is used for device circlip for shaft 3；Groove e is for filling
Set circlip for shaft 42.
As shown in attached drawing 9a, 9b, the main body a of the second planetary shaft structure is used to support needle roller components 16；For being arranged at b
Two planet carriers 20；For being arranged 22 hole small end b of the first ring gear at c；Grooves d is used for device circlip for shaft 17；Groove e is used
In device circlip for shaft 19.
1 pair of course of work of the present invention is described in detail with reference to the accompanying drawing:
As shown in Figure 1, the electronic wheel apparatus of low-speed big of the present invention is by a two-stage planet on the whole
Deceleration mechanism is integrated into a high speed internal rotor hub motor, specifically, is integrated into the recessed of this hub motor itself
Intracavitary, the hub motor and two-stage planet deceleration mechanism after then integrating are self-contained into rim for automobile wheel inner space；Its
In, the big shell 25 of motor and the small shell 29 of motor are fixing pieces, and power is transmitted to by motor rotor rack 30 by hexagon socket head cap screw 31
On motor shaft 36, at this time the output of hub motor is high speed low torque；Then power is passed through involute spline by motor shaft 36
It drives the first sun gear to rotate, is transmitted in two-stage planet deceleration mechanism；Then, power successively via the first sun gear 6,
First planetary gear 1, the first planet axis 4, the second sun gear 8, the second planetary gear 21, the second ring gear 24 are transmitted to hub for vehicle wheel 15
On, it is exported via rim for automobile wheel, at this time, the output of hub motor is made via the deceleration torque increase of two-stage planet deceleration mechanism
With the output of hub end will become low-speed big state.
Electronic wheel apparatus in the present invention using high speed inner rotor motor as hub motor, and by a two-stage planet
Gear reduction integrates in the cavity of the motor itself, does not occupy the exterior space other than wheel additionally.Via wheel hub electricity
The power of machine output, the deceleration torque increase effect by two-stage planet deceleration mechanism, vehicle wheel hub end are up to the big torsion of low speed
The effect of square, this will greatly improve the dynamic property of electric wheel drive vehicle, for its be applied to large truck bring it is bigger
Development space.Meanwhile deceleration mechanism is directly integrated by the electronic wheel apparatus relative to general wheel rim deceleration device, the design
In hub motor cavity, and it is integrated into wheel rim interior with entire hub motor, compact-sized, integrated level is high, accounts for
It is small with space, while guaranteeing good dynamic property enough, do not increase the power size of motor additionally, also prevents take up more
Space requirement.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (10)
1. a kind of electronic wheel apparatus of low-speed big characterized by comprising
Hub motor, with motor housing；
First planetary gear row comprising the first sun gear, the first ring gear, the first planet axis and first planet carrier；
First sun gear is fixed the motor shaft for being arranged the hub motor, can be turned at the same speed relative to the motor shaft
It is dynamic；
Second epicyclic gear train comprising the second sun gear, the second ring gear, the second planet row and the second planet carrier；
Second sun gear, is rotatably supported on the motor shaft of the hub motor, can be relative to the motor
Axis differential speed rotation；And second sun gear is set in first planet axis simultaneously, can be with the first planet carrier
It rotates synchronously；
Wherein, first ring gear is fixedly mounted in the motor housing, and fixation is set in second planet axis
On, second planet axis is fixedly connected with second planet carrier simultaneously；
Wheel rim is fixedly connected with second ring gear, can be rotated synchronously with second ring gear, dynamic for that will rotate
Power output.
2. the electronic wheel apparatus of low-speed big as described in claim 1, which is characterized in that further include: rotor field spider, permanent magnet
And rotor core；
Wherein, rotor field spider is fixed on the motor shaft of the hub motor, and the permanent magnet is fixed on the rotor field spider,
Rotor core is fixed on the motor housing.
3. the electronic wheel apparatus of low-speed big as claimed in claim 2, which is characterized in that the motor housing include two sides to
Sunken inside forms the big shell of motor and the small shell of motor, the big shell of motor are fixedly connected with the small shell of the motor；
Wherein, the rotor field spider is arranged in the space formed after the big shell of the motor is fixedly connected with the small shell of the motor；
And
The first planetary gear row and second epicyclic gear train are fixed in the big shell of the motor being recessed inwardly.
4. the electronic wheel apparatus of low-speed big as claimed in claim 3, which is characterized in that the small shell of motor is rolled by circular cone
Sub- bearing support is on the motor shaft.
5. the electronic wheel apparatus of low-speed big as claimed in claim 4, which is characterized in that further include:
At least one first planetary gear, through the first needle roller support in first planet axis, and first needle roller
It is limited by the first block；And
At least one second planetary gear, through the second needle roller support in second planet axis, and second needle roller
It is limited by the second block.
6. the electronic wheel apparatus of low-speed big as claimed in claim 5, which is characterized in that further include: support bushing, one end
Empty set, can be relative to the motor shaft differential speed rotation, the other end and the second sun gear inner hole surface on the motor shaft
Clearance fit is rotatably supported at second sun gear on the support bushing.
7. the electronic wheel apparatus of low-speed big as claimed in claim 6, which is characterized in that further include: multiple axis elasticity gear
Circle, is separately positioned between first planet axis and the first planet carrier；
Between first planet axis and second sun gear；
Between first ring gear and second planet axis；
Between second planet axis and second planet carrier；And/or
Between first sun gear and the motor shaft.
8. the electronic wheel apparatus of low-speed big as claimed in claim 7, which is characterized in that further include: small shell seal disc connects
It connects on the small shell of the motor.
9. the electronic wheel apparatus of low-speed big as described in any one of claim 1,2,4-7, which is characterized in that further include:
First tapered roller bearing is used to that the first planet carrier to be made to be supported on the motor shaft；And
Second tapered roller bearing is used to that the big shell of the motor to be made to be supported on the motor shaft.
10. a kind of automobile, which is characterized in that filled using low-speed big Electric Motor Wheel as claimed in any one of claims 1-9 wherein
It sets and is driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811066721.7A CN109130837A (en) | 2018-09-13 | 2018-09-13 | A kind of electronic wheel apparatus of low-speed big and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811066721.7A CN109130837A (en) | 2018-09-13 | 2018-09-13 | A kind of electronic wheel apparatus of low-speed big and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109130837A true CN109130837A (en) | 2019-01-04 |
Family
ID=64825041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811066721.7A Pending CN109130837A (en) | 2018-09-13 | 2018-09-13 | A kind of electronic wheel apparatus of low-speed big and automobile |
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| Country | Link |
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| CN (1) | CN109130837A (en) |
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| CN110154737A (en) * | 2019-05-31 | 2019-08-23 | 吉林大学 | A kind of electronic wheel apparatus of low-speed big and electric car |
| CN111791689A (en) * | 2020-07-27 | 2020-10-20 | 长春汽车工业高等专科学校 | Integrated hub motor of commercial vehicle and control method thereof |
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Application publication date: 20190104 |