CN110034631A - A kind of In-wheel motor drive device and electric vehicle - Google Patents
A kind of In-wheel motor drive device and electric vehicle Download PDFInfo
- Publication number
- CN110034631A CN110034631A CN201810028976.8A CN201810028976A CN110034631A CN 110034631 A CN110034631 A CN 110034631A CN 201810028976 A CN201810028976 A CN 201810028976A CN 110034631 A CN110034631 A CN 110034631A
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- Prior art keywords
- gear
- driving mechanism
- central axis
- lateral carrier
- compound planet
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- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 150000001875 compounds Chemical class 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 3
- 230000008450 motivation Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M7/00—Motorcycles characterised by position of motor or engine
- B62M7/12—Motorcycles characterised by position of motor or engine with the engine beside or within the driven wheel
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K2204/00—Adaptations for driving cycles by electric motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (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 a kind of In-wheel motor drive device and electric vehicles, driving device includes the first driving mechanism, central axis, the second driving mechanism and external shell, second driving mechanism includes the isolator with central axis interference fit, and the hollow shaft sleeve, sun gear and the compound planet gear that are successively set in outward on the central axis；Second driving mechanism further includes the first matable assembly and the second matable assembly, and the first matable assembly includes left lateral carrier and right lateral carrier；Also, the position that sun gear is meshed with the compound planet gear, close to the left lateral carrier；Second matable assembly includes left gear ring and right gear ring, also, left gear ring is fixedly connected with the external shell, and right gear ring is fixedly connected by auxiliary member with the isolator.The present invention not only makes driving device ontology be the structure of smaller size smaller, additionally it is possible to realize bigger transmission ratio；Also, the central axis is bearing structure, and safety coefficient is high.
Description
Technical field
The present invention relates to technical field of motors more particularly to a kind of In-wheel motor drive device and electric vehicles.
Background technique
In recent years, electric vehicle has gradually been received by the majority of consumers as a kind of environmental protection, the energy-efficient vehicles, nothing
By still foreign countries, the sales volume of electric vehicle worldwide are also increasing year by year at home, electric vehicle substitutes the trend of bicycle
Gradually expand, and core component of the electric vehicle hub driving device as electric vehicle, the quality of quality often decide electronic
The superiority and inferiority of vehicle entirety.
Electric vehicle hub driving device on the market is broadly divided into two major classes at present, straight to drive driving device and the drive of conventional belt tooth
Dynamic device；Wherein, the shortcomings that straight drive driving device is that volume is big, and output torque is small, and climbing is painstaking, meets heavy load and is easy to burn
It is bad；Although conventional belt tooth driver is promoted compared with direct driving motor torque, volume is still larger, influences appearance.Also,
To realize the biggish transmission ratio of gear drive, existing driving device (motor) generally will use off-axis design, the off-axis design
Refer to and central axis is divided into three sections, it is small for sun gear to be done, to increase transmission ratio；But this structure will lead to entire core
Axis strength reduction；Traditional drives also use the hollow outlet of dead axle, that is, open up through-hole for leading-out terminal in the middle part of dead axle
It draws, this can similarly weaken mandrel intensity.So the work of electric vehicle entirety can be greatly reduced in existing hub drive device
Make reliability and safety.
Summary of the invention
To solve problems of the prior art, the invention proposes a kind of In-wheel motor drive devices and electronic
Vehicle, specifically:
First aspect provides a kind of In-wheel motor drive device, described device include the first driving mechanism, central axis,
Second driving mechanism and external shell, first driving mechanism, central axis, the second driving mechanism are respectively positioned on the external shell
It is interior, and first driving mechanism and the second driving mechanism are set on the central axis；
Second driving mechanism includes the isolator with central axis interference fit, and is successively set in institute outward
State hollow shaft sleeve, sun gear and the compound planet gear on central axis；And one end of the hollow shaft sleeve and described first is driven
Motivation structure is fixedly connected, and the other end of the hollow shaft sleeve is fixedly connected with the inner ring of the sun gear, outside the sun gear
It encloses and is meshed on the inside of the compound planet gear；
Second driving mechanism further includes the first matable assembly and the second matable assembly；
First matable assembly includes the left lateral carrier and right lateral carrier being fixedly connected；The left lateral carrier and right lateral star
Bearing is provided on frame；The inside of the bearing of the left lateral carrier and one end of the compound planet gear are interference fitted, institute
The other end of the inside and the compound planet gear of stating the bearing of right lateral carrier is interference fitted；Also, the sun gear and institute
The position that compound planet gear is meshed is stated, close to the left lateral carrier；
Second matable assembly includes left gear ring and right gear ring, and the left gear ring and right gear ring are in the duplex planet
The middle part in the outside of gear is meshed with the compound planet gear；Also, the left gear ring and the fixed company of the external shell
It connects, the right gear ring is fixedly connected by auxiliary member with the isolator.
Further, first driving mechanism includes rotor and rule stator；The rule stator and motor turn
Son is sequentially sleeved on the central axis；
And the rule stator is fixedly connected with the central axis；One end of the rotor and the hollow shaft sleeve
It is fixedly connected.
Further, the external shell includes left end cap, main casing and right end cap；
One end of the main casing and one end of the left end cap are mutually fixed, right end cap described in the other end of the main casing
One end mutually fix；The other end of the other end of the left end cap and the right end cap is set on the central axis, makes institute
It states left end cap, main casing, right end cap and central axis and constitutes closed space structure, first driving mechanism and the second driving machine
Structure is respectively positioned in the space structure；
Also, outlet hole is offered on the left end cap, the power supply line being connected with the winding terminal of the rule stator
Cable runs through the outlet hole.
Further, the compound planet gear includes planetary gear revolver and planetary gear right wheel；The planetary gear revolver with
The planetary gear right wheel interference fit, or be structure as a whole.
Further, the quantity of the bearing is even number, and the quantity of the bearing in the left lateral carrier and the right side
The quantity of bearing on planet carrier is equal.
Further, first driving mechanism further includes magnet steel, and the magnet steel is arranged in the rotor and embedding
Between stator.
Further, boss is all had in the left lateral carrier and right lateral carrier, offers mounting hole on the boss；
The left lateral carrier and right lateral carrier are bolted at the mounting hole of corresponding boss by connector.
Further, the auxiliary member is fixed bracket, and the fixed bracket setting is in the right lateral carrier close to described
In the space structure of external shell；
Also, described support bracket fastened one end and the end face of the right gear ring are mutually fixed, the support bracket fastened other end
It is connected with the isolator.
Further, second driving mechanism further includes locating piece, and the locating piece includes left gasket and right gasket；
For the left gasket between the left lateral carrier and the rotor, the right gasket is located at the right lateral star
Between frame and the fixed bracket.
Second aspect provides a kind of electric vehicle, including above-mentioned device；It further include wheel and multiple spokes；The spoke
Using the vertical plane where the midpoint of the central axis as the plane of symmetry, it is symmetricly set on the two sides of the hub motor.
In-wheel motor drive device provided by the invention, when car moves forwards, the first driving mechanism of described device
In rotor rotated, wherein one end of rotor and hollow shaft sleeve is fixed, so that the rotation of rotor drives the hollow shaft sleeve
Rotation；The other end of hollow shaft sleeve is fixedly connected with the inner ring of sun gear, so that hollow shaft sleeve drives the sun gear rotation；Institute
It states and is meshed on the inside of the outer ring and compound planet gear of sun gear, so that sun gear drives compound planet gear rotation；Wherein
The bearing being arranged on the planet carrier of left and right is interference fitted with the compound planet gear, also, the left gear ring and described pair
Connection planetary gear is meshed, so that compound planet gear drives the left ring gear against rotation, meanwhile, left lateral carrier and right lateral carrier are same
When rotate；Finally, because left gear ring is mutually fixed with external shell, so, left gear ring drives external shell rotation；Final driving institute
The corresponding vehicle of hub drive device is stated to move forward.Isolator at this time is in meshing state i.e. working condition, unidirectionally
Device is fixedly connected by fixed bracket with right gear ring, and the right gear ring does not rotate.
In-wheel motor drive device provided by the invention, when car slides forward (namely without electric power, car
Descending or in the case where going ahead because of inertia), the corresponding wheel hub of the driving device slides forward, the rotation band of external shell
Left ring gear against rotation is moved, the left gear ring (forward) drives compound planet gear rotation, and the compound planet gear drives right gear ring
Rotation；Because the end face of right gear ring is connect by auxiliary member with the isolator, so isolator at this time is rotation, but it is
In idling conditions i.e. discrete state；Vehicle can be made smoothly to slide forward in the case where protecting motor in this way.
In-wheel motor drive device provided by the invention, when car is carried out backward, the corresponding wheel of the driving device
Hub is carried out backward, and the rotation of external shell drives left ring gear against rotation, and left gear ring (backward) drives compound planet gear rotation, duplex
Planetary gear drives sun gear rotation, and sun gear drives hollow shaft sleeve rotation, and hollow shaft sleeve drives entire rotor anti-in turn
Turn；Isolator is in meshing state i.e. working condition at this time, and vehicle is smoothly carried out backward.
The present invention is close to the orientation of left lateral carrier by the way that the position that sun gear is meshed with compound planet gear is arranged；And
And isolator is directly interference fitted with the central axis, and consolidated isolator and right gear ring by auxiliary member (fixed bracket)
Fixed connection；In-wheel motor drive device under this structure not only make driving device ontology can be designed as having it is lesser
The overall structure of volume, but also can be realized bigger transmission ratio.In addition, the present invention uses the end face outlet of external shell,
Central axis is bearing structure, will not weaken the intensity of central axis (dead axle), and safety coefficient is high.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of In-wheel motor drive device major architectural figure provided in the embodiment of the present invention；
Fig. 2 is a kind of In-wheel motor drive device structure sectional view provided in the embodiment of the present invention；
Fig. 3 is a kind of signal of the electric vehicle with the In-wheel motor drive device provided in the embodiment of the present invention
Figure.
In figure: the first driving mechanism 1, rotor 11, rule stator 12, magnet steel 13, power cable 14, central axis 2, the
Two driving mechanisms 3, isolator 31, hollow shaft sleeve 32, sun gear 33, left lateral carrier 34, right lateral carrier 35, bearing 36, left gear ring
37, right gear ring 38, fixed bracket 381, compound planet gear 39, external shell 4, main casing 41, left end cap 421, right end cap
422, wheel 51, spoke 52.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
Need to give explanation, " outside " and " inside " of the invention be the central axis according to described device from the point of view of
, it is " inside " close to that side of the central axis, it is opposite with the inside namely far from that side of the central axis
For " outside "." left side " and " right side " in the present invention is the close motor mechanism from the point of view of the motor mechanism according to described device
Beyond be " left side ", far from being " right side " beyond the motor mechanism.
Embodiment:
The present embodiment proposes a kind of In-wheel motor drive device, as shown in Figure 1, described device includes the first driving machine
Structure 1, central axis 2, the second driving mechanism 3 and external shell 4.
Specifically, as shown in Fig. 2, first driving mechanism 1, central axis 2, the second driving mechanism 3 are respectively positioned on outside described
In portion's shell 4, and the central axis 2 is fixing axle, and first driving mechanism 1 and the second driving mechanism 3 are set in described
On central axis 2；
As shown in Fig. 2, second driving mechanism 3 includes the isolator 31, Yi Jiyi with the central axis 2 interference fit
The secondary hollow shaft sleeve 32 being set on the central axis 2 outward, sun gear 33 and compound planet gear 39；And the hollow shaft
One end of set 32 is fixedly connected with first driving mechanism 1, the other end of the hollow shaft sleeve 32 and the sun gear 33
Inner ring is fixedly connected (such as spline connection), and the outer ring of the sun gear 33 and the inside of the compound planet gear 39 are mutually nibbled
It closes.Wherein, the compound planet gear 34 includes planetary gear revolver and planetary gear right wheel；The planetary gear revolver and the planet
Take turns right wheel interference fit, or be structure as a whole, shown in Fig. 2 for planetary gear revolver (left part of compound planet gear) and
The mode of planetary gear right wheel (right part of compound planet gear) interference fit.
Second driving mechanism 3 further includes the first matable assembly and the second matable assembly.Specifically:
Give explanation for the first matable assembly in the second driving mechanism 3: first matable assembly includes solid
Surely the left lateral carrier 34 and right lateral carrier 35 connected；And bearing is provided in the left lateral carrier 34 and right lateral carrier 35
36, the bearing 36 is fixed on corresponding planet carrier；Specifically, the inside of the bearing 36 of the left lateral carrier 34 and described double
Join one end interference fit of planetary gear 39, the inside of the bearing 36 of the right lateral carrier 35 and the compound planet gear 39
Other end interference fit.Importantly, the position that the sun gear 33 is meshed with the compound planet gear 39, close to described
Left lateral carrier 34；The volume of corresponding driving device is designed smaller, and the transmission ratio of output can be bigger.
Wherein, the quantity of the bearing 36 be even number, and the quantity of the bearing 36 in the left lateral carrier 34 with it is described
The quantity of bearing 36 in right lateral carrier 35 is equal；Preferably, as shown in Fig. 2, bearing 36 and institute in the left lateral carrier 34
The quantity for stating the bearing 36 in right lateral carrier 35 is 3 or 4；That is, the number of the bearing in the left lateral carrier
Amount is 3, and the quantity of the bearing in right lateral carrier is 3；Alternatively, the quantity of the bearing in the left lateral carrier is 4, right lateral
The quantity of bearing in carrier is 4.
Wherein for left lateral carrier 34 and right lateral carrier 35 be fixedly connected give explanation be；34 He of left lateral carrier
Boss is also each had in right lateral carrier 35, offers mounting hole on the boss；The left lateral carrier 34 and right lateral carrier 35
It carries out being bolted locking at the mounting hole of corresponding boss by connector.Wherein, the connector is such as pin, rivet
Or hinged bolts etc..
Explanation is given for the second matable assembly in the second driving mechanism 3: as shown in Fig. 2, second cooperation
Component includes left gear ring 37 and right gear ring 38, and the left gear ring 37 and right gear ring 38 are in the outside of the compound planet gear 39
Middle part be meshed with the compound planet gear 39.Also, the left gear ring 37 is fixedly connected with the external shell 4, tool
Body is fixed with the main casing 41 of the external shell, wherein can be the installations such as screw, pin connection, can also be that interference is matched
It closes.The right gear ring 38 is fixedly connected by auxiliary member with the isolator 31；Also, the driving device is driving accordingly
When vehicle advances, the right gear ring 38 is motionless；And when driving device drives corresponding vehicle sliding, right gear ring 38 is because of duplex row
The rotation of star gear 39 and rotate.
In detail, above-mentioned auxiliary member is fixed bracket 381, as shown in Fig. 2, the fixed bracket 381 is arranged described
Right lateral carrier 35 is in the space structure of the external shell 4；Also, one end of the fixed bracket 381 and the right tooth
The end face of circle 38 is mutually fixed, and the other end of the fixed bracket 381 is connected with the isolator 31.
Preferably, second driving mechanism 3 further includes locating piece (not shown), and the locating piece includes left gasket
With right gasket；Between the left lateral carrier 34 and the rotor 11, the right gasket is located at described the left gasket
Between right lateral carrier 35 and the fixed bracket 381.It is by the positioning of locating piece that left lateral carrier 34 and right lateral carrier 35 is fixed,
Prevent the vibration of left and right planet carrier.
Explanation is given for first driving mechanism 1: as shown in Fig. 2, first driving mechanism 1 includes motor
Rotor 11 and rule stator 12；The rule stator 12 and rotor 11 are sequentially sleeved on the central axis 2；And it is described
Rule stator 12 is fixedly connected with the central axis 2；The rotor 11 is fixedly connected with one end of the hollow shaft sleeve 32.
So central axis 2 is fixing axle, and accordingly, rule stator 12 is fixed after power cable 14 is powered；11 turns of rotor
It is dynamic, and then hollow shaft sleeve 32 is driven to rotate.
Further, as shown in Fig. 2, first driving mechanism 1 further includes magnet steel 13, the magnet steel 13 is arranged described
Between rotor 11 and rule stator 12.Wherein, the magnet steel 13 is the magnetic material of high magnetic field intensity, it is preferable that is used
Using Nd-Fe-B rare earth magnetic steel 13.
Explanation is given for the external shell 4: as shown in Fig. 2, the external shell 4 includes left end cap 421, master
Shell 41 and right end cap 422；One end of the main casing 41 and one end of the left end cap 421 are mutually fixed, the main casing 41
One end of the other end and the right end cap 422 mutually fix；The other end of the left end cap 421 is another with the right end cap 422
One end is set on the central axis 2；Wherein, the fixation of one end of the main casing 41 and one end of the right end cap 422
Mode is screw connection or snaps connection.The left end cap 421, main casing 41, right end cap 422 and central axis 2 constitute closing
Space structure, first driving mechanism 1 and the second driving mechanism 3 are respectively positioned in the space structure；Also, the left end
Outlet hole is offered on lid 421, the power cable 14 being connected with the winding terminal of the rule stator 12 runs through the outlet
Hole；It can be seen that the central axis 2 of the present embodiment described device is bearing structure, and then safety coefficient with higher.
Need to give explanation, high, the light-weight gear structure using intensity of the gear in the present embodiment, such as can be with
With plastic gear, powder metallurgical gear.
Embodiment:
A kind of electric vehicle is present embodiments provided, as shown in figure 3, including the wheel hub electric motor driving dress in above-described embodiment
It sets；It further include wheel 51 and multiple spokes 52；The spoke 52 is with vertical where the midpoint of the central axis of the driving device
Face is the plane of symmetry, is symmetricly set on the two sides of the In-wheel motor drive device.
And spoke hole is provided on the external shell of the driving device, one end of the spoke, which is concentrated, to be fixed on outside described
On spoke hole on portion's shell, the other end is uniformly mounted in the wheel hub wall of the electric vehicle；To pass through spoke for wheel hub
Motor drive and wheel 51 are connected, and then advance with motor car wheel 51.
It needs to give explanation, the product being designed using In-wheel motor drive device of the present invention is not only
It is that can also be the product of the one kind such as electric booster bicycle or Self-Balancing vehicle for electric vehicle, belong to protection of the invention
Range.
In conclusion In-wheel motor drive device provided by the invention, when car moves forwards, described device first
Rotor in driving mechanism is rotated, wherein one end of rotor and hollow shaft sleeve is fixed, so that described in the rotation drive of rotor
Hollow shaft sleeve rotation；The other end of hollow shaft sleeve and the inner ring of sun gear are interference fitted, so that hollow shaft sleeve drives the sun
Wheel rotation；It is meshed on the inside of the outer ring of the sun gear and compound planet gear, so that sun gear drives compound planet gear
Rotation；The bearing being provided on the planet carrier of left and right is interference fitted with the compound planet gear, also, the left gear ring
It is meshed with the compound planet gear, so that compound planet gear drives the left ring gear against rotation, meanwhile, left lateral carrier and the right side
Planet carrier rotates simultaneously；Finally, because left gear ring is fixedly connected with external shell, so, left gear ring drives external shell rotation；
The corresponding vehicle of the hub drive device is finally driven to move forward.Isolator at this time is in meshing state and namely works
State, isolator are fixedly connected by fixed bracket with right gear ring, and the right gear ring does not rotate.
In-wheel motor drive device provided by the invention, when car slides forward (namely without electric power, car
Descending or the case where go ahead because of inertia), the corresponding wheel hub of the driving device slides forward, and the rotation of external shell drives
Left ring gear against rotation, the left gear ring (forward) drive compound planet gear rotation, and the compound planet gear drives right gear ring to turn
It is dynamic；Isolator of stating at this time is in idling conditions i.e. discrete state；It can make vehicle in the case where protecting motor in this way
Smoothly slide forward.
In-wheel motor drive device provided by the invention, when car is carried out backward, the corresponding wheel of the driving device
Hub is carried out backward, and the rotation of external shell drives left ring gear against rotation, and left gear ring (backward) drives compound planet gear rotation, duplex
Planetary gear drives sun gear rotation, and sun gear drives hollow shaft sleeve rotation, and hollow shaft sleeve drives entire rotor anti-in turn
Turn；Isolator is in meshing state i.e. working condition at this time, and vehicle is smoothly carried out backward.
The present invention is close to the orientation of left lateral carrier by the way that the position that sun gear is meshed with compound planet gear is arranged；And
And isolator is directly interference fitted with the central axis, and consolidated isolator and right gear ring by auxiliary member (fixed bracket)
Fixed connection；In-wheel motor drive device under this structure not only make driving device ontology can be designed as having it is lesser
The overall structure of volume, but also can be realized bigger transmission ratio.In addition, the present invention uses the end face outlet of external shell,
Central axis is bearing structure, will not weaken the intensity of central axis (dead axle), and safety coefficient is high.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of In-wheel motor drive device, which is characterized in that driven including the first driving mechanism (1), central axis (2), second
Motivation structure (3) and external shell (4), first driving mechanism (1), central axis (2), the second driving mechanism (3) are respectively positioned on institute
It states in external shell (4), and first driving mechanism (1) and the second driving mechanism (3) are set in the central axis (2)
On；It is characterized in that,
Second driving mechanism (3) includes the isolator (31) with the central axis (2) interference fit, and successively to housing
Hollow shaft sleeve (32), sun gear (33) and the compound planet gear being located on the central axis (2)；And the hollow shaft sleeve
(32) one end is fixedly connected with first driving mechanism (1), the other end and the sun gear of the hollow shaft sleeve (32)
(33) inner ring is fixedly connected, and is meshed on the inside of the outer ring and the compound planet gear (39) of the sun gear (33)；
Second driving mechanism (3) further includes the first matable assembly and the second matable assembly；
First matable assembly includes the left lateral carrier (34) and right lateral carrier (35) being fixedly connected；The left lateral carrier (34)
With bearing (36) are provided on right lateral carrier (35)；The inside of the bearing of the left lateral carrier and the compound planet gear
One end interference fit, the inside of the bearing of the right lateral carrier and the other end of the compound planet gear (39) are interference fitted；
Also, the position that the sun gear (33) is meshed with the compound planet gear (39), close to the left lateral carrier (34)；
Second matable assembly includes left gear ring (37) and right gear ring (38), and the left gear ring (37) and right gear ring (38) exist
The middle part in the outside of the compound planet gear (39) is meshed with the compound planet gear (39)；Also, the left gear ring
(37) it is fixedly connected with the external shell (4), the right gear ring (38) connects by the way that auxiliary member and the isolator (31) are fixed
It connects.
2. the apparatus according to claim 1, which is characterized in that first driving mechanism (1) includes rotor (11)
With rule stator (12)；The rule stator (12) and rotor (11) are sequentially sleeved on the central axis (2)；
And the rule stator (12) is fixedly connected with the central axis (2)；The rotor (11) and the hollow shaft
One end of set (32) is fixedly connected.
3. the apparatus of claim 2, which is characterized in that the external shell (4) includes left end cap (421), main casing
Body (41) and right end cap (422)；
One end of the main casing (41) and one end of the left end cap (421) are mutually fixed, the other end of the main casing (41)
One end of the right end cap (422) is mutually fixed；The other end of the left end cap (421) and the other end of the right end cap (422)
It is set on the central axis (2), makes the left end cap (421), main casing (41), right end cap (422) and central axis (2) structure
At closed space structure, first driving mechanism (1) and the second driving mechanism (3) are respectively positioned in the space structure；
Also, outlet hole is offered on the left end cap (421), the electricity being connected with the winding terminal of the rule stator (12)
Source cable (14) runs through the outlet hole.
4. the apparatus according to claim 1, which is characterized in that the compound planet gear (39) include planetary gear revolver and
Planetary gear right wheel；The planetary gear revolver and the planetary gear right wheel are interference fitted, or are structure as a whole.
5. the apparatus according to claim 1, which is characterized in that the quantity of the bearing (36) is even number, and on the left side
The quantity of bearing on planet carrier is equal with the quantity of bearing in the right lateral carrier.
6. the apparatus of claim 2, which is characterized in that first driving mechanism (1) further includes magnet steel (13), institute
Magnet steel (13) are stated to be arranged between the rotor (11) and rule stator (12).
7. the apparatus according to claim 1, which is characterized in that boss is all had in the left lateral carrier and right lateral carrier,
Mounting hole is offered on the boss；
The left lateral carrier (34) and right lateral carrier (35) are bolted at the mounting hole of corresponding boss by connector.
8. according to any device of claim 2 or 6, which is characterized in that the auxiliary member is fixed bracket (381), institute
Fixed bracket setting is stated in the space structure of the right lateral carrier (35) close the external shell (4)；
Also, one end of the fixed bracket (381) and the end face of the right gear ring (38) are mutually fixed, the fixed bracket
(381) the other end is connected with the isolator (31).
9. device according to claim 8, which is characterized in that second driving mechanism (3) further includes locating piece, described
Locating piece includes left gasket and right gasket；
For the left gasket between the left lateral carrier (34) and the rotor (11), the right gasket is located at the right side
Between planet carrier (35) and the fixed bracket (381).
10. a kind of electric vehicle, which is characterized in that including any device of claim 1-9；
It further include wheel (51) and multiple spokes (52)；The spoke is symmetrical with the vertical plane where the midpoint of the central axis
Face is symmetricly set on the two sides of the hub motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810028976.8A CN110034631A (en) | 2018-01-12 | 2018-01-12 | A kind of In-wheel motor drive device and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810028976.8A CN110034631A (en) | 2018-01-12 | 2018-01-12 | A kind of In-wheel motor drive device and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110034631A true CN110034631A (en) | 2019-07-19 |
Family
ID=67234260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810028976.8A Withdrawn CN110034631A (en) | 2018-01-12 | 2018-01-12 | A kind of In-wheel motor drive device and electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110034631A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135650A (en) * | 2021-12-09 | 2022-03-04 | 广州市岳中数字科技有限公司 | Speed reducer capable of passing wire |
| DE112021006247T5 (en) | 2020-12-03 | 2023-09-28 | Denso Corporation | Coupling device |
| DE112021006251T5 (en) | 2020-12-03 | 2023-10-05 | Denso Corporation | Coupling device |
| DE112021006279T5 (en) | 2020-12-03 | 2023-12-07 | Denso Corporation | Rotary actuator |
-
2018
- 2018-01-12 CN CN201810028976.8A patent/CN110034631A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112021006247T5 (en) | 2020-12-03 | 2023-09-28 | Denso Corporation | Coupling device |
| DE112021006251T5 (en) | 2020-12-03 | 2023-10-05 | Denso Corporation | Coupling device |
| DE112021006279T5 (en) | 2020-12-03 | 2023-12-07 | Denso Corporation | Rotary actuator |
| CN114135650A (en) * | 2021-12-09 | 2022-03-04 | 广州市岳中数字科技有限公司 | Speed reducer capable of passing wire |
| CN114135650B (en) * | 2021-12-09 | 2023-10-03 | 广州市岳中数字科技有限公司 | Speed reducer capable of passing wire |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190719 |