CN206943360U - Suitable for two shift transmissions of electric car - Google Patents
Suitable for two shift transmissions of electric car Download PDFInfo
- Publication number
- CN206943360U CN206943360U CN201720566775.4U CN201720566775U CN206943360U CN 206943360 U CN206943360 U CN 206943360U CN 201720566775 U CN201720566775 U CN 201720566775U CN 206943360 U CN206943360 U CN 206943360U
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- China
- Prior art keywords
- gear
- decelerator
- brake
- primary planet
- planet carrier
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- Structure Of Transmissions (AREA)
Abstract
The utility model discloses a kind of two shift transmissions suitable for electric car, including housing, the freewheel clutch being arranged in housing, brake, primary planet decelerator, the differential mechanism that main reducing gear is connected with main reducing gear, primary planet decelerator includes ring gear, it is arranged on the sun gear of internal tooth circle center, the planetary gear and planet carrier being arranged between sun gear and ring gear, main reducing gear includes driving wheel and driven pulley, driven pulley is connected with the planet carrier of primary planet decelerator, freewheel clutch includes interior star-wheel and outer ring, the interior star-wheel of freewheel clutch is connected between the sun gear of motor output shaft and primary planet decelerator, and the outer ring of freewheel clutch is connected with the planet carrier of primary planet decelerator, brake is connected with the ring gear of primary planet decelerator.Structure setting of the present utility model is reasonable, and it can realize two-stage speed governing, and structure is compacter, can effectively ensure stability in use and reliability, strong applicability and practicality is good.
Description
Technical field
The utility model belongs to technical field of new energy, and in particular to a kind of two gear speed changes suitable for electric car
Device.
Background technology
Currently, the drive system of electric car is mainly made up of motor one decelerator of series connection, and decelerator increases for reduction of speed
Away to export bigger power.Although decelerator can provide high pulling torque, speed is than single, in the high-speed cruising stage of electric car,
Motor need to provide higher speed to meet the performance requirement of automobile；From the characteristic of motor in itself, motor is in critical speed
It is the work of permanent moment of torsion below, in critical speed above is constant power output, therefore motor is at high speed, and output torque can be beaten greatly
Discount, the driving experience of automobile is influenceed, while loss of the high-revolving operating to decelerator parts itself is very big, easily loses
Effect.
The content of the invention
The purpose of this utility model is to provide that a kind of structure setting is reasonable and stability in use is good is applied to electric car
Two shift transmissions.
The technical scheme for realizing the utility model purpose is a kind of two shift transmissions suitable for electric car, including housing,
Freewheel clutch, brake, primary planet decelerator, the main reducing gear being arranged in the housing are connected with the main reducing gear
The differential mechanism connect, the primary planet decelerator include ring gear, are arranged on the sun gear of the internal tooth circle center, are arranged on institute
The planetary gear and planet carrier between sun gear and the ring gear are stated, the planet carrier is separately set with the planetary gear, institute
Stating main reducing gear includes driving wheel and driven pulley, and the driven pulley is connected with the planet carrier of the primary planet decelerator, institute
Driving wheel and the mutually ratcheting setting of the driven pulley are stated, the differential mechanism is arranged on the center of the driving wheel, described to surmount
Clutch includes interior star-wheel and outer ring, and the interior star-wheel of the freewheel clutch is connected to motor output shaft and primary planet decelerator
Sun gear between, and the outer ring of freewheel clutch is connected with the planet carrier of the primary planet decelerator, the brake
It is connected with the ring gear of the primary planet decelerator.
Protective cover is provided with the outside of the driving wheel, protective cover, the protective cover and institute are provided with the differential mechanism
State and be fixed with reinforcement bearing rib between protective cover.
The brake includes the flywheel being connected with the ring gear of the primary planet decelerator, in the outer of the flywheel
Anchor ring is provided with multilayer friction plate, is additionally provided with multilayer brake(-holder) block, and multilayer friction plate is arranged at intervals successively with brake(-holder) block, in the system
Buffer spring is fixed between moving plate, is additionally provided with braking motor, the braking motor is fixedly connected with outermost brake(-holder) block.
The planet carrier faces the ring side of sun gear for the central angle of fan-shaped setting and sector.
The utility model has positive effect：Structure setting of the present utility model is reasonable, and it can realize two-stage speed governing, together
When its gearshift it is more smooth, structure is compacter, not only install convenient and can effectively ensure stability in use and reliability, fits
With property, strong and practicality is good.
Brief description of the drawings
In order that content of the present utility model is more likely to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail to the utility model, wherein：
Fig. 1 is structural representation of the present utility model.
Embodiment
(embodiment 1)
Fig. 1 shows a kind of embodiment of the present utility model, and wherein Fig. 1 is structural representation of the present utility model
Figure.
See Fig. 1, a kind of two shift transmissions suitable for electric car, including housing 1, it is arranged on surmounting in the housing 1
The differential mechanism 6 that clutch 2, brake 3, primary planet decelerator 4, main reducing gear 5 are connected with the main reducing gear 5, it is described
Primary planet decelerator 4 includes ring gear 41, is arranged on the sun gear 42 at the center of ring gear 41, is arranged on the sun gear
Planetary gear 43 and planet carrier 44 between 42 and the ring gear 41, the planet carrier 44 are separately set with the planetary gear 43
Put, the main reducing gear 5 includes driving wheel 51 and driven pulley 52, the row of the driven pulley 52 and the primary planet decelerator 4
Carrier 44 is connected, and the driving wheel 51 is arranged on the driving wheel with the 52 mutually ratcheting setting of driven pulley, the differential mechanism 6
51 center, the freewheel clutch 2 include interior star-wheel 21 and outer ring 22, and the interior star-wheel 21 of the freewheel clutch 2 connects
It is connected between motor output shaft and the sun gear 42 of primary planet decelerator 4, and the outer ring 22 of freewheel clutch 2 and described one
The planet carrier 44 of level planetary reduction gear 4 is connected, and the brake is connected with the ring gear of the primary planet decelerator.
Protective cover 7 is provided with the outside of the driving wheel 51, protective cover 8, the protective cover are provided with the differential mechanism
It is fixed between the protective cover and strengthens bearing rib 9.
The brake 3 includes the flywheel 31 being connected with the ring gear 41 of the primary planet decelerator 4, described
The outer ring surface of flywheel 31 is provided with multilayer friction plate 32, is additionally provided with multilayer brake(-holder) block 33, multilayer friction plate and brake(-holder) block successively between
Every setting, buffer spring 34 is fixed between the brake(-holder) block, is additionally provided with braking motor 35, the braking motor and outermost
Brake(-holder) block be fixedly connected.In the present embodiment, also there is back-moving spring between adjacent friction plate, by buffer spring and reset bullet
Spring makes brake(-holder) block be separated in motion with friction plate.
The planet carrier faces the ring side of sun gear for the central angle of fan-shaped setting and sector.
Structure setting of the present utility model is reasonable, and it can realize two-stage speed governing, while its gearshift is more smooth, and structure is more
It is compact, not only install convenient and it can effectively ensure stability in use and reliability, strong applicability and practicality is good.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments
It is exhaustive.And these belong to the obvious changes or variations that connotation of the present utility model is extended out and still fall within this practicality
New protection domain.
Claims (4)
1. a kind of two shift transmissions suitable for electric car, including housing, the freewheel clutch being arranged in the housing, braking
The differential mechanism that device, primary planet decelerator, main reducing gear are connected with the main reducing gear, it is characterised in that：The one-level row
Star decelerator includes ring gear, is arranged on the sun gear of the internal tooth circle center, is arranged on the sun gear and the ring gear
Between planetary gear and planet carrier, the planet carrier separately sets with the planetary gear, and the main reducing gear includes driving wheel
And driven pulley, the driven pulley are connected with the planet carrier of the primary planet decelerator, the driving wheel and the driven pulley
Mutually ratcheting setting, the differential mechanism are arranged on the center of the driving wheel, and the freewheel clutch is including interior star-wheel and outside
Circle, the interior star-wheel of the freewheel clutch is connected between the sun gear of motor output shaft and primary planet decelerator, and is surmounted
The outer ring of clutch is connected with the planet carrier of the primary planet decelerator, the brake and the primary planet decelerator
Ring gear be connected.
2. two shift transmissions according to claim 1 suitable for electric car, it is characterised in that：In the outer of the driving wheel
Side is provided with protective cover, and protective cover is provided with the differential mechanism, and reinforcement branch is fixed between the protective cover and the protective cover
Support gusset.
3. two shift transmissions according to claim 2 suitable for electric car, it is characterised in that：The brake include with
The flywheel that the ring gear of the primary planet decelerator is connected, multilayer friction plate is provided with the outer ring surface of the flywheel, also
Provided with multilayer brake(-holder) block, multilayer friction plate is arranged at intervals successively with brake(-holder) block, and buffer spring is fixed between the brake(-holder) block,
Braking motor is additionally provided with, the braking motor is fixedly connected with outermost brake(-holder) block.
4. two shift transmissions according to claim 3 suitable for electric car, it is characterised in that：The planet carrier is sector
The central angle of setting and sector faces the ring side of sun gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720566775.4U CN206943360U (en) | 2017-05-19 | 2017-05-19 | Suitable for two shift transmissions of electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720566775.4U CN206943360U (en) | 2017-05-19 | 2017-05-19 | Suitable for two shift transmissions of electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206943360U true CN206943360U (en) | 2018-01-30 |
Family
ID=61361158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720566775.4U Active CN206943360U (en) | 2017-05-19 | 2017-05-19 | Suitable for two shift transmissions of electric car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206943360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191564A (en) * | 2017-05-19 | 2017-09-22 | 重庆凯瑞电动汽车系统有限公司 | Suitable for the two speed transmission of electric car |
-
2017
- 2017-05-19 CN CN201720566775.4U patent/CN206943360U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191564A (en) * | 2017-05-19 | 2017-09-22 | 重庆凯瑞电动汽车系统有限公司 | Suitable for the two speed transmission of electric car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190910 Address after: 401121 No. 6, Fuxi Road, Jingkai Garden, North New District of Chongqing Patentee after: Chongqing Kairui Power Technology Co., Ltd. Address before: 400900 No. 9 Star Road, Shuangqiao District, Chongqing, attached No. 1 Patentee before: Chongqing Kai Rui vehicle electric system Co., Ltd |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200217 Address after: 401122 No. 9 Jinyu Avenue, North New District, Yubei District, Chongqing Co-patentee after: Chongqing Kairui Power Technology Co., Ltd. Patentee after: China Automotive Engineering Research Institute Co.,Ltd. Address before: 401121 No. 6, Fuxi Road, Jingkai Garden, North New District of Chongqing Patentee before: Chongqing Kairui Power Technology Co., Ltd. |