CN209621968U - A kind of electricity drive bridge slowing-down structure - Google Patents
A kind of electricity drive bridge slowing-down structure Download PDFInfo
- Publication number
- CN209621968U CN209621968U CN201920170933.3U CN201920170933U CN209621968U CN 209621968 U CN209621968 U CN 209621968U CN 201920170933 U CN201920170933 U CN 201920170933U CN 209621968 U CN209621968 U CN 209621968U
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- planetary gear
- gear
- construction module
- slowing
- double reduction
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Abstract
The utility model discloses a kind of electricity to drive bridge slowing-down structure, including motor module, primary speed-down construction module and double reduction construction module, the primary speed-down construction module is class planet gear transmission device, the double reduction construction module is planet gear transmission device, by the power of motor module output by ring gear output power after the deceleration of primary speed-down construction module, and it is output in the sun gear of double reduction construction module.The utility model uses double reduction structure, and resultant gear ratio is big, it can be achieved that motor high speed, component are integrated, so that the kerb weight of electric car be effectively reduced, increase carrying capacity extends course continuation mileage, promotes the market competitiveness.
Description
Technical field
The utility model relates to automobile technical fields, drive bridge slowing-down structure more particularly, to a kind of electricity.
Background technique
Under the dual promotion of environment and policy, it is bright that recent domestic electric car substitutes conventional energy resource automobile trend
It is aobvious.The existing five kinds of actuation techniques routes of electric car: 1, motor+routine bridge line, 2, motor+retarder+routine bridge line, 3,
Hub reduction rigid bridge route, 4, central moderator rigid bridge route, 5, hub motor rigid bridge route.Currently, motor+routine bridge
Route applications are extensive, but with the development of the technologies such as high-speed motor, hub reduction rigid bridge route using more and more.
Utility model content
The purpose of this utility model is to provide for a kind of new electricity drive bridge slowing-down structure.
The technical solution adopted in the utility model are as follows: a kind of electricity drive bridge slowing-down structure, including motor module, primary speed-down knot
Structure module and double reduction construction module, the primary speed-down construction module be class planet gear transmission device, described two
Grade slowing-down structure module is planet gear transmission device, by the power of motor module output after the deceleration of primary speed-down construction module
By ring gear output power, and it is output in the sun gear of double reduction construction module.
Further, the primary speed-down construction module includes ring gear A and the planetary gear A, the planet that are installed therein
Gear B, planetary gear C and sun gear A, the planetary gear A, planetary gear B and planetary gear C and ring gear A and the sun
Take turns A engagement；Sun gear A, planetary gear A and the planetary gear B is fixed together by shell.
Further, the planetary gear A and planetary gear B can also be kept to one according to transmitting torque or the difference of speed ratio
A or increase is three or three or more.
Further, the double reduction construction module includes ring gear B and is installed therein planetary gear D, planet tooth
Take turns E, planetary gear F, planetary gear G, planetary gear H and sun gear B, the planetary gear D, planetary gear E, planetary gear
F, planetary gear G, planetary gear H are engaged with ring gear B and sun gear B；The planetary gear D, planetary gear E, planet tooth
Wheel F, planetary gear G are fixedly connected with planetary gear H by planet carrier.
Further, the planetary gear D, planetary gear E, planetary gear F, planetary gear G and planetary gear H are according to biography
The difference of torque or speed ratio is passed, can also be used instead as three, four or other quantity.
The beneficial effect that the utility model generates is:
1, the utility model uses double reduction structure, and resultant gear ratio is big, it can be achieved that motor high speed, component are integrated,
To which the kerb weight of electric car be effectively reduced, increase carrying capacity, extend course continuation mileage, promotes the market competitiveness.
2, the utility model primary speed-down construction module is balanced, is realized using a gear input, two gears and shell
Power dividing, axial dimension is short, more compact structure, ensure that the requirements such as enough road clearances.
3, before being located at double reduction construction module due to semiaxis, the torque born is greatly reduced compared with conventional products, because
And the part sizes such as semiaxis can be reduced, part is lighter.
4, by adjusting the respective gears number of teeth, resultant gear ratio range is wide, and application range of products is wide, can be widely used for car and
Lorry etc..
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of primary speed-down construction module；
Fig. 3 is the structural schematic diagram of double reduction construction module；
In figure: 1- motor module, 2- primary speed-down construction module, 3- double reduction construction module, 21- ring gear A, 22-
Planetary gear A, 23- planetary gear B, 24- planetary gear C, 25- sun gear A, 26- shell, 31- ring gear B, 32- planetary gear
D, 33- planetary gear E, 34- planetary gear F, 35- planetary gear G, 36- planetary gear H, 37- sun gear B, 38- planet carrier.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
The utility model is a kind of electricity drive bridge slowing-down structure, and two differences being cascaded are driven using motor module 1
The planetary driving device of speed ratio, including primary speed-down construction module 2 and double reduction construction module 3.
Wherein primary speed-down construction module 2 includes ring gear A21 and the planetary gear A22, the planetary gear that are installed therein
B23, planetary gear C24 and sun gear A25, the planetary gear A22, planetary gear B23 and planetary gear C24 and ring gear
A21 and sun gear A25 engagement；Sun gear A25, the planetary gear A22 is fixedly connected with planetary gear B23 by shell 26
Together.
Double reduction construction module 3 include ring gear B31 and be installed therein planetary gear D32, planetary gear E33,
Planetary gear F34, planetary gear G35, planetary gear H36 and sun gear B37, the planetary gear D32, planetary gear E33,
Planetary gear F34, planetary gear G35, planetary gear H36 are engaged with ring gear B31 and sun gear B37；The planetary gear
D32, planetary gear E33, planetary gear F34, planetary gear G35 and planetary gear H36 are fixedly connected by planet carrier 38.
It is actively that motor module 1, which drives the planetary gear C24 in primary speed-down construction module 2, planetary gear C24, first
Part, driving ring gear A21 rotation, and sun gear A25 is driven to rotate simultaneously, sun gear A25 drives planetary gear A22 and planet tooth
B23 rotation is taken turns, by dynamic branch.Sun gear A25, planetary gear A22 and planetary gear B23 are fixed together by shell 26,
And can be rotated around respective axis, planetary gear A22 and planetary gear B23 drive ring gear A21 with planet gear C 24 together.Level-one
Slowing-down structure module 2 realizes level-one reduction of speed torque increase, transmission ratio i1For the gear ratio of ring gear A21 and planetary gear C24, i.e. i1=
z21/z24.In order to realize different transmitting torque or speed ratio, planetary gear A22 and planetary gear B23 are according to can also be kept to one
Or increasing is three or three or more.
Ring gear A21 drives the sun gear B37 in double reduction construction module 3 to rotate by spline and semiaxis, ring gear
B31 is fixed, and planetary gear D32, planetary gear E33, planetary gear F34, planetary gear G35, planetary gear H36 pass through row
Carrier 38 is fixed together, and drives rotation by sun gear B37；Planet carrier 38 is fixed with automotive hub, and is revolved with runner hub
Turn, realizes running car or reversing.Double reduction construction module 3 realizes two-stage speed-down torque increase, transmission ratio i2=1+z31/z37, wherein
z31For the number of teeth of ring gear B31, wherein z37For the sun gear B37 number of teeth.In order to realize different transmitting torque or speed ratio, planet
Gear D 32, planetary gear E33, planetary gear F34, planetary gear G35 and planetary gear H36 can also use instead as three, four or
Other quantity.
This electricity drives bridge slowing-down structure resultant gear ratio i0=i1·i2。
Claims (5)
1. a kind of electricity drives bridge slowing-down structure, it is characterised in that: including motor module, primary speed-down construction module and double reduction knot
Structure module, the primary speed-down construction module are class planet gear transmission device, and the double reduction construction module is row
Star gear assembly, by the power of motor module output by ring gear output power after the deceleration of primary speed-down construction module,
And it is output in the sun gear of double reduction construction module.
2. a kind of electricity according to claim 1 drives bridge slowing-down structure, it is characterised in that: the primary speed-down construction module
Including ring gear A and the planetary gear A, planetary gear B, planetary gear C and the sun gear A that are installed therein, the planet tooth
Wheel A, planetary gear B and planetary gear C are engaged with ring gear A and sun gear A；Sun gear A, planetary gear A and the planet
Gear B is fixed together by shell.
3. a kind of electricity according to claim 2 drives bridge slowing-down structure, it is characterised in that: the planetary gear A and planet
For gear B according to transmitting torque or the difference of speed ratio, can also increase is three or three or more.
4. a kind of electricity according to claim 1 drives bridge slowing-down structure, it is characterised in that: the double reduction construction module
Including ring gear B and it is installed therein planetary gear D, planetary gear E, planetary gear F, planetary gear G, planetary gear H and too
Sun wheel B, the planetary gear D, planetary gear E, planetary gear F, planetary gear G, planetary gear H and ring gear B and the sun
Take turns B engagement；Planetary gear D, planetary gear E, planetary gear F, planetary gear G and the planetary gear H is solid by planet carrier
Fixed connection.
5. a kind of electricity according to claim 4 drives bridge slowing-down structure, it is characterised in that: the planetary gear D, planet tooth
E, planetary gear F, planetary gear G and planetary gear H are taken turns according to transmitting torque or the difference of speed ratio, can also be used instead as three or four
It is a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920170933.3U CN209621968U (en) | 2019-01-31 | 2019-01-31 | A kind of electricity drive bridge slowing-down structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920170933.3U CN209621968U (en) | 2019-01-31 | 2019-01-31 | A kind of electricity drive bridge slowing-down structure |
Publications (1)
| Publication Number | Publication Date |
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| CN209621968U true CN209621968U (en) | 2019-11-12 |
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| CN201920170933.3U Active CN209621968U (en) | 2019-01-31 | 2019-01-31 | A kind of electricity drive bridge slowing-down structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854682A (en) * | 2019-01-31 | 2019-06-07 | 郑州智驱科技有限公司 | A kind of electricity drive bridge slowing-down structure |
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2019
- 2019-01-31 CN CN201920170933.3U patent/CN209621968U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854682A (en) * | 2019-01-31 | 2019-06-07 | 郑州智驱科技有限公司 | A kind of electricity drive bridge slowing-down structure |
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