CN208138398U - Three gear automatic speed variator of electric vehicle - Google Patents
Three gear automatic speed variator of electric vehicle Download PDFInfo
- Publication number
- CN208138398U CN208138398U CN201820639507.5U CN201820639507U CN208138398U CN 208138398 U CN208138398 U CN 208138398U CN 201820639507 U CN201820639507 U CN 201820639507U CN 208138398 U CN208138398 U CN 208138398U
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- gear
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- transmission
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Abstract
The utility model discloses a kind of three gear automatic speed variators of electric vehicle,Including case of transmission,The input shaft being connect with driving motor,Output shaft,Planetary gear mechanism,It further include the first driving gear,Second driving gear,First driven gear,Second driven gear,First clutch,Second clutch,First brake,Second brake,First transmission shaft and second driving shaft,Input shaft is connect with the first driving gear and the second driving gear,One end of first transmission shaft is connect with bearing,The other end sequentially passes through the first driven gear,The interior hub of first clutch is simultaneously connect with second driving shaft,The connection of the outer hub of first brake and first clutch,Second driven gear is fixedly connected with the outer hub of second clutch,Second driving shaft sequentially passes through the outer hub of first clutch,Second driven gear,Second clutch is connect with sun gear,Gear ring frame is provided on second driving shaft,The connection of the interior hub of gear ring frame and second clutch,Second brake is connect with gear ring frame.
Description
Technical field
The utility model relates to automotive components, and in particular to a kind of three gear automatic speed variator of electric vehicle.
Background technique
Automatic transmission be it is a set of be used for coordinate the speed change gear of the actual travel speed of the revolving speed of motor and wheel,
Motor is set to play optimum performance.While the car is driving, speed changer can produce different between motor and wheel
Gear ratio makes motor work under optimal power performance state on climbing level road, to motor and control circuit by gear shift
There is overload protective function.Speed changer development trend becomes increasingly complex, and the degree of automation is also higher and higher, and automatic transmission will be not
The mainstream come.
Planetary Gear Transmission have small in size, light weight, compact-sized, bearing capacity is strong, transmission efficiency is high, transmission ratio is big
Move the features such as steady.By not needing driver's buty shifting after automatically controlled automation, and the more gear ranges of gear are big, transmission
Effect is more preferable, and power performance and fuel economy are better.
Existing electric vehicle transmission is mostly two speed transmission, is directly inputted power by motor, is had in uphill way etc.
When the load of mutation, bearing capacity is not strong, and transmission efficiency is low, influences the service life of speed changer, two grades of optional range is small, no
The use demand in different road conditions and hillside fields can be met well.
Utility model content
The purpose of this utility model is that in view of the above-mentioned problems, providing that a kind of structure is simple, bearing capacity is strong, transmission efficiency
High electric vehicle transmission.
For this purpose, technical solution used by the utility model is：
A kind of three gear automatic speed variator of electric vehicle, including case of transmission, the input shaft being connect with driving motor, output
Axis, planetary gear mechanism, it is characterised in that：It further include the first driving gear, the second driving gear, the first driven gear, second
Driven gear, first clutch, second clutch, the first brake, second brake, the first transmission shaft and second driving shaft,
The planetary gear mechanism includes sun gear, planetary gear, the planet carrier being connected with exporting axis, the gear ring engaged with planetary gear, institute
It states input shaft to connect with first driving gear and second driving gear, the first driving gear and first driven tooth
Wheel engagement, the second driving gear engages with second driven gear, one end of first transmission shaft be mounted on speed changer
Bearing connection on shell, the other end sequentially pass through the first driven gear, the interior hub of the first clutch and with described second
It is driven axis connection, first brake is fixed on case of transmission and connect with the outer hub of first clutch, and second is driven
Gear is fixedly connected with the outer hub of the second clutch, second driving shaft sequentially pass through the outer hub of first clutch, second from
Moving gear, second clutch are simultaneously connect with the sun gear, and second driving shaft and the second driven gear are simultaneously not connected to, the second clutch
Device, which is connect with second driving shaft by bearing assembly, enables second clutch to rotate around second driving shaft, and the second clutch
The outer hub of device can be rotated alone about second driving shaft, and one end on second driving shaft close to sun gear is provided with described in installation
The interior hub of the gear ring frame of gear ring, the gear ring frame and second clutch connects, and the second brake is fixed on case of transmission
Above and with gear ring frame it connect.
Preferably, the band sun wheel shaft that the second driving shaft and sun gear are integrated, band sun wheel shaft it is easy from
Market is commercially available, and source is wide, easy for installation.
In the above-mentioned technical solutions, first transmission shaft and second driving shaft, which pass through, is arranged in putting down on the first transmission shaft
Spherical bearing is connected with ball bearing, and the ball bearing protrudes into second driving shaft, is connected firmly, structure is simple, easy to install, is made
When the outer hub of proper first clutch is by the first brake, the interior hub of first clutch dallies.
In the above-mentioned technical solutions, the bearing assembly includes two groups of bearings, and every group of bearing includes three bearings, and described three
A bearing is respectively first bearing, second bearing, 3rd bearing, and the first bearing connects second driving shaft and second clutch
Interior hub, the interior hub and outer hub of second bearing connection second clutch, the 3rd bearing is mounted on second clutch
It on outer hub and is fixed on case of transmission, is provided with limit sleeve between two groups of bearings.By bearing assembly, so that the second clutch
The interior hub of device can drive interior hub rotation by power transmission to gear ring frame under the rotation of outer hub, so that gear ring frame rotates；It can also
So that outer hub individually around second driving shaft rotate and outer hub does not rotate, namely outer hub dally；Realize the conversion of different stalls.
The utility model has the beneficial effects that：Structure is simple, be skillfully constructed, install easy, passes through two clutches, two
Brake, a planetary gear mechanism can be achieved with third gear conversion, so that there are three different gears for speed changer, so that speed changer
Bearing capacity is strong, transmission efficiency is high, can satisfy a variety of use demands, when motor is under Same Efficieney, becomes automatically equipped with third gear
The electric vehicle of fast device can well adapt to hill path, have stronger climbing capacity.This automatic transmission uses least mechanical mechanism
Most gears is obtained, manufacture, maintenance are easy.
Detailed description of the invention
Fig. 1 is the structural representation cross-sectional view of the utility model.
Specific embodiment
By way of example and in conjunction with the accompanying drawings, the utility model is described in further detail：
Embodiment 1
Three gear automatic speed variator of a kind of electric vehicle as shown in Figure 1, mainly connect by case of transmission 1, with driving motor
Input shaft 2, output shaft 3, planetary gear mechanism, the first driving gear 4, the second driving gear 5, the first driven gear 6, second
Driven gear 7, first clutch 8, second clutch 9, the first brake 10, second brake 11, the first transmission shaft 12 and
Two transmission shafts 13 composition.Planetary gear mechanism mainly by sun gear 14, planetary gear 15, the planet carrier 16 being connect with output shaft 3, with
The gear ring 17 that planetary gear 15 engages forms.Input shaft 2 is connect with the first driving gear 4 and the second driving gear 5, the first driving tooth
Wheel 4 is engaged with the first driven gear 6, and the second driving gear 5 is engaged with the second driven gear 7.One end of first transmission shaft 12 with
Be mounted on case of transmission 1 bearing connection, the other end sequentially pass through the first driven gear 6, first clutch 8 interior hub simultaneously
It is connect with second driving shaft 13, the first transmission shaft 12 passes through the plane axis being arranged on the first transmission shaft 12 with second driving shaft 13
It holds and is connected with ball bearing, ball bearing protrudes into second driving shaft 13.
First brake 10 is fixed on case of transmission 1 and connect with the outer hub of first clutch 8, the second driven gear
7 are fixedly connected with the outer hub of second clutch 9, and second driving shaft 13 sequentially passes through the outer hub of first clutch 8, the second driven tooth
Wheel 7, second clutch 9 are simultaneously connect with sun gear 14.Second driving shaft 13 and the second driven gear 7 are simultaneously not connected to, the second transmission
The rotation of axis 13 does not drive the rotation of the second driven gear 7.Second clutch 9 and second driving shaft 13 are connected by bearing assembly
It connects and second clutch 9 is rotated around second driving shaft 13, and the outer hub of second clutch 9 can be passed alone about second
Moving axis 13 rotates.Bearing assembly includes two groups of bearings, can support second driving shaft 13, every group of axis well using two groups of bearings
It contracts and includes three bearings, three bearings are respectively first bearing 19a, second bearing 19b, 3rd bearing 19c, first bearing 19a
The interior hub of connection second driving shaft 13 and second clutch 9, the interior hub and outer hub of second bearing 19b connection second clutch 9, the
Three bearing 19c are mounted on the outer hub of second clutch 9 and are fixed on case of transmission 1, are arranged between two groups of bearings limited
Position set 19d, limit sleeve 19d are used to limit the position of two adjacent bearings.
One end on second driving shaft 13 close to sun gear 14 is provided with the gear ring frame 18 of installation gear ring 17, gear ring frame 18
It is fixedly connected with the interior hub of second clutch 9, second brake 11 is fixed on case of transmission 1 and connect with gear ring frame 18.
Preferably, the band sun wheel shaft that second driving shaft 13 and sun gear 14 are integrated, band sun wheel shaft are easy in market
It is commercially available, it is at low cost, easy for installation.
The working principle of the transmission of the utility model is：Power is passed to input shaft 2 by driving motor, and input shaft 2 rotates band
Dynamic first driving gear 4 and the rotation of the second driving gear 5, the speed changer share third gear：(1) one grade：Low or first gear, first clutch
8 and second brake 11 work, the first driven gear 6 rotation, due to first clutch 8 work, drive second driving shaft
13 rotations brake gear ring frame 18 since second brake 11 works, the interior hub for the second clutch 9 connecting with gear ring frame 18
It is not able to rotate, the rotation that second driving shaft 13 rotates drives the outer hub idle running of second clutch 9, and power is straight from second driving shaft 13
It connects and is transmitted to sun gear 14, planetary gear 15, to pass to output shaft 3.(2) two grades：Mid ranger, the first brake 10 and second
Clutch 9 works, and power is from input shaft2It is transmitted to the first driving gear 4 and the second driving gear 5, due to the first brake 10
First clutch 8 is braked in work, therefore the interior hub idle running of first clutch 8, and outer hub is not able to rotate, therefore second driving shaft 13
It is not able to rotate with sun gear 14；Second driving gear 5 rotation at this time drives the rotation of the second driven gear 7, due to the second clutch
Device 9 works, and the second driven gear 7 drives gear ring frame 18 to rotate by second clutch 9, and gear ring 17 rotates, to drive planet
15 rotation of wheel, imparts power to output shaft 3.(3) third gear：Top gear, first clutch 8 and second clutch 9 work, and two
A brake does not work, therefore the first transmission shaft 12 and the rotation of second driving shaft 13 drive sun gear 14 to rotate, and second is driven
The rotation of gear 7 also drives gear ring frame 18 to rotate, and drives planetary gear 15 to rotate, imparts power to output shaft 3, and revolving speed is most at this time
It fastly, is top gear.
Claims (4)
1. a kind of three gear automatic speed variator of electric vehicle, including case of transmission (1), the input shaft (2) being connect with driving motor, defeated
Shaft (3), planetary gear mechanism, it is characterised in that：Further include the first driving gear (4), the second driving gear (5), first from
Moving gear (6), the second driven gear (7), first clutch (8), second clutch (9), the first brake (10), the second braking
Device (11), the first transmission shaft (12) and second driving shaft (13), the planetary gear mechanism include sun gear (14), planetary gear
(15), the planet carrier (16) being connect with output shaft (3), the gear ring (17) engaged with planetary gear (15), the input shaft (2) and institute
State the first driving gear (4) and second driving gear (5) connection, the first driving gear (4) and first driven gear
(6) it engages, the second driving gear (5) is engaged with second driven gear (7), one end of first transmission shaft (12) and peace
Bearing connection on case of transmission (1), the other end sequentially pass through the first driven gear (6), the first clutch (8)
Interior hub and connect with the second driving shaft (13), first brake (10) be fixed on case of transmission (1) and with
The outer hub of first clutch (8) connects, and the second driven gear (7) is fixedly connected with the outer hub of the second clutch (9), and second
Transmission shaft (13) sequentially pass through the outer hub of first clutch (8), the second driven gear (7), second clutch (9) and with it is described too
Sun wheel (14) connection, second driving shaft (13) and the second driven gear (7) are simultaneously not connected to, and second clutch (9) is driven with second
Axis (13) is connected by bearing assembly so that second clutch (9) can be rotated around second driving shaft (13), and the second clutch
The outer hub of device (9) can be rotated alone about second driving shaft (13), close to the one of sun gear (14) on second driving shaft (13)
End is provided with the gear ring frame (18) for installing the gear ring (17), and the gear ring frame (18) connect with the interior hub of second clutch (9),
The second brake (11) is fixed on case of transmission (1) and connect with gear ring frame (18).
2. three gear automatic speed variator of electric vehicle as described in claim 1, it is characterised in that：The second driving shaft (13) with too
The band sun wheel shaft that sun wheel (14) is integrated.
3. three gear automatic speed variator of electric vehicle as described in claim 1, it is characterised in that：First transmission shaft (12) and the
Two transmission shafts (13) are connected by the plane bearing being arranged on the first transmission shaft (12) with ball bearing, and the ball bearing is stretched
Enter in second driving shaft (13).
4. three gear automatic speed variator of electric vehicle as described in claim 1, it is characterised in that：The bearing assembly includes two groups of axis
It holds, every group of bearing includes three bearings, and three bearings are respectively first bearing (19a), second bearing (19b), third axis
It holds (19c), the interior hub of first bearing (19a) connection second driving shaft (13) and second clutch (9), the second bearing
(19b) connects the interior hub and outer hub of second clutch (9), and the 3rd bearing (19c) is mounted on the outer hub of second clutch (9)
It goes up and is fixed on case of transmission (1), limit sleeve (19d) is provided between two groups of bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639507.5U CN208138398U (en) | 2018-04-28 | 2018-04-28 | Three gear automatic speed variator of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639507.5U CN208138398U (en) | 2018-04-28 | 2018-04-28 | Three gear automatic speed variator of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208138398U true CN208138398U (en) | 2018-11-23 |
Family
ID=64311735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820639507.5U Active CN208138398U (en) | 2018-04-28 | 2018-04-28 | Three gear automatic speed variator of electric vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN208138398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667893A (en) * | 2019-02-18 | 2019-04-23 | 河北工业大学 | Three gear planetary gear automatic transmissions and pure electric automobile |
-
2018
- 2018-04-28 CN CN201820639507.5U patent/CN208138398U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667893A (en) * | 2019-02-18 | 2019-04-23 | 河北工业大学 | Three gear planetary gear automatic transmissions and pure electric automobile |
| CN109667893B (en) * | 2019-02-18 | 2020-08-18 | 河北工业大学 | Three-gear planetary gear automatic transmission and pure electric vehicle |
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