CN209492375U - Universal electric drive axle - Google Patents
Universal electric drive axle Download PDFInfo
- Publication number
- CN209492375U CN209492375U CN201821091773.5U CN201821091773U CN209492375U CN 209492375 U CN209492375 U CN 209492375U CN 201821091773 U CN201821091773 U CN 201821091773U CN 209492375 U CN209492375 U CN 209492375U
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- CN
- China
- Prior art keywords
- motor
- planetary
- jackshaft
- drive axle
- planetary reducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000009467 reduction Effects 0.000 claims abstract description 31
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims description 12
- 230000003447 ipsilateral effect Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Arrangement Of Transmissions (AREA)
- Retarders (AREA)
Abstract
The utility model discloses general electric drive axle of claim protection, the planetary reduction gears of motor, symmetrical arrangement including symmetrical arrangement, planetary reduction gears includes one-level planetary reducer and second grade planetary reducer, and the electric motor rotor axle and the one-level planetary reducer of motor are connected with gear engagement, one-level planetary reducer is connected with gear engagement with second grade planetary reducer, and second grade planetary reducer is linked with the transmission shaft spline. The motor rotor shaft is a power input end and transmits torque to the transmission half shaft to drive the wheel hub to rotate through the first-stage planetary reducer and the second-stage planetary reducer in sequence. The device has simple and compact structure, is beneficial to processing and assembling, reduces the production cost, improves the rigidity of the electrically driven axle, reduces the radial dimension, has strong bearing capacity and impact resistance, is suitable for being used as a front axle and a rear axle, and is suitable for being installed on various vehicles, ships and machinery.
Description
Technical field
The utility model belongs to electric drive technology field, is related to vehicle, ship, mechanical generally applicable electric drive axle, especially
The front-rear axle that can be used as vehicle uses.
Background technique
The arrangement mode of current electro-motive vehicle motor has hub motor mode, wheel motor mode, in vehicle bridge single motor
It sets and external mode, the external mode of vehicle bridge bi-motor.Hub motor mode increases the swing inertia and rotary inertia of wheel hub, makes
Hub bearing increases excessive axial wobble load, once bearing clearance is excessive to will result in hub motor sealing problem, and it is right
The tolerance of dust and muddy water is deteriorated, and leads to failure；Because tire when walking can be with wheel hub frictional heating, radiating is also
The weakness of hub motor.Motor occupies the space on the inside of wheel hub in wheel motor mode, makes vehicle bridge external structure complexity, spring
Lower quality increases, and handling capacity is deteriorated.Traditional differential mechanism, internal junction can be all used in the built-in and external mode of vehicle bridge single motor
Structure is complicated, causes vehicle bearing capacity and impact resistance not strong, easily there was a mechanical failure；Since heavy-duty motor needs are examined
Consider bearing insulation problem, so increasing the design difficulty of vehicle, especially the coaxial build-in module vehicle bridge center of gravity of single motor is inclined
Shifting leads to that two sides wheel hub bearing capacity is inconsistent, unsprung mass is inconsistent.The external various modes of vehicle bridge bi-motor both increase vehicle
The radial dimension of bridge and extra shell structure, and the total number of teeth in engagement of gear causes impact resistance poor less, increases a large amount of springs
Lower quality, and so that vehicle bridge Combination Design difficulty is become larger and be more not suitable as preceding bridge use.
Therefore provide a kind of structure is simple, facilitate Car design, radial dimension are small, bearing capacity is strong, strong shock resistance,
It can be used as front-rear axle, the electric drive axle that is suitble to load-carrying vehicle and passenger vehicle, in ship and mechanically also can be used just is shown
It obtains very urgent and important.
Summary of the invention
The utility model is to solve above problem of the prior art, proposes that a kind of structure is simple, facilitates design, processing work
The general electric drive axle that skill is good, mounting process is good.The technical solution of the utility model is as follows:
General electric drive axle, including motor, planetary reduction gear body, jackshaft, the rotor axis of electric and planet of the motor
The internal planetary reduction gear that slows down connects, and planetary reduction gear is connect with jackshaft.Wherein motor, planetary reduction gear body, jackshaft
It is coaxially connected；It include symmetrical planetary gear speed reducing mechanism in the planetary reduction gear body, planetary gear speed reducing mechanism includes that primary planet subtracts
Fast device and second planetary reducer, wherein rotor axis of electric is connect with primary planet retarder, primary planet retarder and second level
Planetary reduction gear connection, second planetary reducer are connect with jackshaft；The motor passes sequentially through one as power intake
Grade planetary reduction gear and second planetary reducer transmit torque to jackshaft drive hub and drive vehicle wheel rotation.
The rotor axis of electric is the level-one sun gear of primary planet retarder, and primary planet retarder further includes level-one
Planetary gear, level-one ring gear and primary planet carrier, wherein level-one ring gear is fixed on planetary reduction gear body, primary planet wheel and one
Grade planet carrier connection.
The primary planet carrier is the secondary solar gear of second planetary reducer, and second planetary reducer further includes second level
Planetary gear, second level ring gear and secondary planet frame, wherein second level gear ring is fixed on planetary reduction gear body, secondary planet wheel and second level
Planet carrier connection, secondary planet frame are connect with jackshaft.
It further, further include that there are also the planets of second planetary reducer to subtract for fixing motor and primary planet retarder
The combined shell that fast body shell body, motor field frame, axle tube are formed, the combined shell are that coaxial several shell combinations connect
The entirety being connected into.
Further, the rotor axis of electric is hollow structure, the sun of the rotor axis of electric as primary planet retarder
For wheel transmission power to primary planet retarder and second planetary reducer, second planetary reducer imparts power to transmission half
Axis, jackshaft pass through hollow second planetary reducer, primary planet retarder, rotor axis of electric and axle tube, connection
Side wheel hub drives vehicle wheel rotation.
It the advantages of the utility model and has the beneficial effect that:
The utility model provides a kind of general electric drive axle, provides that a structure is simple, radial dimension is small, vehicle is facilitated to set
The electric drive axle that meter, bearing capacity are strong, strong shock resistance, can be used as front-rear axle, are suitble to load-carrying vehicle and trailer.This is general
Electric drive axle is suitable for use of in passenger vehicle, ship and mechanically.This general electric drive axle part is few, processing technology and assembly
Technique is good, failure rate is low, and it is many that part can be such that design and manufacture cost reduces with uniform sizes, and maintenance cost also reduces very
It is more.
This general electric drive axle expansion capability is good, and general electric drive axle can utilize steel plate bullet with car body in practice
Spring is connected to rigid axles use, and pontic, which can also connect independent suspension and transmission shaft, makes car body become independent suspension structure, also
Air spring can be carried for load-carrying vehicle.This general electric drive axle may be also used on trailer, make trailer itself with drive
Power and auxiliary brake function.
The space of the power output end of this general electric drive axle is larger, can use existing vehicle brake device and wheel side
Deceleration system and other wheel hub perimeter systems, reduce vehicle whole design and manufacturing cost very much, can keep vehicle
Overall dimensions are consistent with existing standard, maintenance maintenance cost also relative reduction.This general electric drive axle uses coaxial-type cloth simultaneously
It sets, there is the features such as compact-sized, rigidity is high, transmission efficiency is high, and transmitting torque is big, strong shock resistance.
General electricity drives the entirety of bridge or half is also used as ship and mechanical driving mechanism uses.
Detailed description of the invention
Fig. 1 is general electric drive axle embodiment schematic diagram provided by the utility model.
Specific embodiment
Below in conjunction with the utility model embodiment attached drawing to the technical scheme in the embodiment of the utility model carry out it is clear,
It describes in detail.
The technical solution of the utility model is as follows:
General electric drive axle as shown in Figure 1, including motor A (1), motor B (2), planetary reduction gear body (3), jackshaft (7)
With opposite jackshaft, motor A (1), motor B (2) are that symmetric coaxial is connected to planetary reduction gear body (3) two sides.
There are two sets of planetary gear speed reducing mechanisms being arranged symmetrically in embodiment inside planetary reduction gear body (3), in planetary gear speed reducing mechanism
Primary planet retarder (4) engage connection with rotor axis of electric (6) gear of motor A (1), be arranged symmetrically with motor A (1)
The rotor axis of electric of motor B (2) engages connection with ipsilateral primary planet reducer gear.
It is used to fix motor A (1) in embodiment, planetary reduction gear body (3) shell of motor B (2) includes two be arranged symmetrically
Cover planetary gear speed reducing mechanism.
Primary planet retarder (4) includes primary planet wheel, level-one ring gear and primary planet carrier in embodiment, wherein one
Grade ring gear is fixed on planetary reduction gear body (3), and rotor axis of electric (6) and motor A (1) axial restraint slow down as primary planet
The sun gear of device (4), primary planet wheel are connect with primary planet carrier, primary planet carrier as second planetary reducer (5) two
Grade sun gear；The second planetary reducer (5) includes secondary planet wheel, second level ring gear and secondary planet frame, wherein second level
Ring gear is fixed on planetary reduction gear body (3), and secondary planet wheel is connect with secondary planet frame, secondary planet frame and jackshaft
(7) it connects, opposite structure is identical as above structure.
Motor A (1), motor B (2) and planetary reduction gear body (3) shell both ends are connected to planetary reduction gear body (3) in embodiment
The end cap of shell, motor A (1) shell and axle tube (8) are interference fit connection, and motor B (2) and ipsilateral axle tube were
It is full of mating connection, coaxial entire combination shell structure is collectively formed.
Motor A (1) in embodiment, motor B (2) rotor axis of electric be hollow structure, jackshaft (7) passes through semiaxis
Casing (8), rotor axis of electric (6), primary planet retarder (4) are connect with the planet carrier spline of second planetary reducer (5), and two
The power of grade planetary reduction gear (5) passes to jackshaft (7) drive hub (9) and drives vehicle wheel rotation, opposite jackshaft
Connection and transmission mode are identical as jackshaft (7).
The utility model is to realize the change of wheel hub driving torque and revolving speed by changing the electrical parameter of input motor,
Realize that wheel hub differential operates by the different electrical parameter of two motor of input.
A half structure in embodiment can be used as unilateral driving mechanism also within the scope of the utility model claims.This
Utility model can also realize bigger deceleration ratio and increase torque by increasing the series of planetary reduction gear, to make reality
Product has more certain general-purpose capability.
Above embodiments are interpreted as being merely to illustrate the utility model rather than limit the protection model of the utility model
It encloses.The equivalence changes to be formed are made various changes or modifications to the utility model after the content for having read the utility model description
It is also included in the utility model claims limited range with modification.
Claims (7)
1. general electric drive axle, which is characterized in that including motor A (1), motor B (2), planetary reduction gear body (3), axle tube
(8), drive hub (9), jackshaft (7) and opposite jackshaft；Motor A (1), motor B (2) are connected to for symmetric coaxial
Planetary reduction gear body (3) two sides, jackshaft (7) pass through drive hub (9), axle tube (8), motor A (1) and planetary reduction gear
The connection of body (3) spline；All structure members be it is coaxially connected, while increasing motor inside drive axle relative to motor outside
The drive axle set is without excessively increasing drive axle radial dimension.
2. general electric drive axle according to claim 1, which is characterized in that have two sets of symmetrical cloth inside planetary reduction gear body (3)
The planetary gear speed reducing mechanism set, the rotor axis of electric (6) of primary planet retarder (4) and motor A (1) in planetary gear speed reducing mechanism
Gear engagement connection, rotor axis of electric and ipsilateral primary planet retarder tooth with motor A (1) the motor B (2) being arranged symmetrically
Wheel engagement connection.
3. general electric drive axle according to claim 1, which is characterized in that primary planet retarder (4) includes primary planet
Wheel, level-one ring gear and primary planet carrier, wherein level-one ring gear is fixed on planetary reduction gear body (3), rotor axis of electric (6) with
The fixed sun gear as primary planet retarder (4) of motor A (1), primary planet wheel are connect with primary planet carrier, primary planet
Secondary solar gear of the frame as second planetary reducer (5)；The second planetary reducer (5) includes secondary planet wheel, second level
Ring gear and secondary planet frame, wherein second level ring gear is fixed on planetary reduction gear body (3), secondary planet wheel and secondary planet frame
Connection, secondary planet frame are connect with jackshaft (7), and opposite structure is identical as above structure.
4. general electric drive axle according to claim 1, which is characterized in that further include for fixing motor A (1), motor B
(2) planetary reduction gear body (3) shell for being arranged symmetrically planetary gear speed reducing mechanism is included.
5. general electric drive axle according to claim 1, which is characterized in that motor A (1), motor B (2) and planetary reduction gear
Body (3) shell both ends are connected to the end cap of planetary reduction gear body (3) shell, and motor A (1) shell and axle tube (8) are interference
It is cooperatively connected, motor B (2) and ipsilateral axle tube are interference fit connection, form coaxial entire combination shell structure.
6. general electric drive axle according to claim 1, which is characterized in that the motor A (1), motor B (2) motor
Armature spindle is hollow structure, jackshaft (7) pass through axle tube (8), rotor axis of electric (6), primary planet retarder (4) with
The planet carrier spline of second planetary reducer (5) connects, and the power of second planetary reducer (5) passes to jackshaft (7) drive
Runner hub (9) drives vehicle wheel rotation, and the connection of opposite jackshaft and transmission mode are identical as jackshaft (7).
7. according to claim 1 to 6 any general electric drive axles, which is characterized in that the half in structure can be used as list
Side driving mechanism is also within the scope of the claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821091773.5U CN209492375U (en) | 2018-07-11 | 2018-07-11 | Universal electric drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821091773.5U CN209492375U (en) | 2018-07-11 | 2018-07-11 | Universal electric drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209492375U true CN209492375U (en) | 2019-10-15 |
Family
ID=68150632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821091773.5U Active CN209492375U (en) | 2018-07-11 | 2018-07-11 | Universal electric drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209492375U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406498A (en) * | 2020-11-19 | 2021-02-26 | 北京汽车股份有限公司 | Dual-motor torque vector system, control method and automobile |
| WO2023173318A1 (en) * | 2022-03-16 | 2023-09-21 | 舍弗勒技术股份两合公司 | Bridge driving system and vehicle |
-
2018
- 2018-07-11 CN CN201821091773.5U patent/CN209492375U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112406498A (en) * | 2020-11-19 | 2021-02-26 | 北京汽车股份有限公司 | Dual-motor torque vector system, control method and automobile |
| WO2023173318A1 (en) * | 2022-03-16 | 2023-09-21 | 舍弗勒技术股份两合公司 | Bridge driving system and vehicle |
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