CN206943341U - The three pure electric transmission machanisms of gear - Google Patents
The three pure electric transmission machanisms of gear Download PDFInfo
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- CN206943341U CN206943341U CN201720784077.1U CN201720784077U CN206943341U CN 206943341 U CN206943341 U CN 206943341U CN 201720784077 U CN201720784077 U CN 201720784077U CN 206943341 U CN206943341 U CN 206943341U
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Abstract
The pure electric transmission machanism of the gear of one kind three, including：Housing, the motor being arranged in housing, planet carrier, compound planetary row, brake, first clutch and second clutch, wherein：The motor stator and brake of motor are fixedly installed on housing, and brake is connected with compound planetary row；The rotor of motor is connected by rotor axis of electric with planet carrier, and planet carrier is fixedly connected with compound planetary row；First clutch and second clutch are respectively between rotor axis of electric and planet carrier, between rotor axis of electric and compound planetary row；Compound planetary row includes：Sun gear, the first planetary gear, the second planetary gear, the first external toothing, the second external toothing, the first connecting shaft, the second connecting shaft and the 3rd connecting shaft.The utility model can realize the pure electric Drive Mode of three gears, wherein comprising a direct gear and an overgear, can take into account the use demand of low-speed big and high speed.
Description
Technical field
The utility model relates to a kind of technology in vehicle drive-train field, is specifically the pure electric transmission of the gear of one kind three
Device.
Background technology
Automobile dynamic system motorized has become development trend, with the progress of battery technology, pure motor driving mileage
All it is greatly improved with the charging interval, is increasingly becoming important urban transportation tool.More pure electronic vapour in the market
Car all uses single fast ratio, and higher moment of torsion and rotating speed requirement are proposed to motor.Develop the pure power driven system of more gears
The operation interval of motor can be optimized, while reduce the capacity requirement of battery, advantageously reduce integral vehicle cost.
Utility model content
The utility model is acute for the more larger change in torque caused in shift process of two gears gearratio difference of prior art
The problem of strong, the pure electric transmission machanism of the gear of one kind three is proposed, is matched somebody with somebody by what a brake, two clutches and compound planetary were arranged
Close, realize the pure electric Drive Mode in three gears, take into account the use demand of low-speed big and high speed.
The utility model is achieved through the following technical solutions：
The utility model includes：Housing, the motor being arranged in housing, planet carrier, compound planetary row, brake, first
Clutch and second clutch, wherein：The motor stator and brake of motor are fixedly installed on housing, brake and compound row
Star row is connected；The rotor of motor is connected by rotor axis of electric with planet carrier, and planet carrier is fixedly connected with compound planetary row；
First clutch and second clutch respectively between rotor axis of electric and planet carrier, rotor axis of electric and compound planetary arrange it
Between.
Described compound planetary row includes：Sun gear, the first planetary gear, the second planetary gear, the first external toothing, the second external tooth
Circle, the first connecting shaft, the second connecting shaft and the 3rd connecting shaft, wherein：First planetary gear engages with sun gear, and sun gear is fixedly installed on
On three connecting shafts；First planetary gear is also engaged with the first external toothing simultaneously, and the first external toothing is fixedly connected with the first connecting shaft；The first row
Star-wheel, the second planetary gear and the second external toothing are engaged successively, and the second external toothing is fixedly connected with the second connecting shaft.
Described the first planetary gear and the second planetary gear is arranged on planet carrier.
Described brake is between the first connecting shaft and housing.
Described second clutch is between rotor axis of electric and the 3rd connecting shaft.
Described brake, first clutch and second clutch uses multi-sheet wet-type friction element.
Technique effect
Compared with prior art, the cooperation that the utility model is arranged by a brake, two clutches and compound planetary,
The pure electric Drive Mode of lower three gears of single motor is realized, wherein including a direct gear and an overgear；This practicality is new
Type can take into account the use demand of low-speed big and high speed.
Brief description of the drawings
Fig. 1 is the utility model schematic diagram；
In figure：1 rotor axis of electric, 2 second connecting shafts, 3 the 3rd connecting shafts, 4 first connecting shafts, 5 planet carriers, 6 sun gears, 7 first
Planetary gear, 8 second planetary gears, 9 second external toothings, 10 first external toothings, 11 reduction gearing, 12 big retarding gears, 13 small decelerations
Gear, 14 differential mechanism final gears, 15 gear connecting shafts, 16 wheels, 17 differential mechanisms, 18 vehicle semiaxis, 19 rotors, 20 electricity
Machine stator, 21 housings, B1 brakes, C1 first clutches, C2 second clutches.
Embodiment
As shown in figure 1, the present embodiment includes：Housing 21, the motor EM being arranged in housing 21, rotor axis of electric, OK
Carrier, compound planetary row, brake B1, first clutch C1 and second clutch C2, wherein：The motor EM He of motor stator 20
Brake B1 is fixedly installed on housing 21, and brake B1 is connected with compound planetary row；Motor EM rotor 19 passes through electricity
Machine rotor axle 1 is connected with planet carrier 5；First clutch C1 and second clutch C2 is respectively positioned at rotor axis of electric 1 and planet carrier 5
Between, rotor axis of electric 1 and compound planetary row between.
Described compound planetary row mechanism includes：Sun gear 6, the first planetary gear 7, the second planetary gear 8, the first external toothing
10th, the second external toothing 9, the first connecting shaft 4, the second connecting shaft 2 and the 3rd connecting shaft 3, wherein：First planetary gear 7 simultaneously with the second planet
The engagement of wheel 8 and sun gear 6 are engaged, and sun gear 6 is fixedly installed on the 3rd connecting shaft 3；First planetary gear 7 is nibbled with the first external toothing 10
Close, the first external toothing 10 is fixedly connected with the first connecting shaft 4；First planetary gear 7, the second planetary gear 8 and the second external toothing 9 are nibbled successively
Close, the second external toothing 9 is fixedly connected with the second connecting shaft 2.
Described the first planetary gear 7 and the second planetary gear 8 is arranged on planet carrier 5.
Described brake B1 is between the first connecting shaft 4 and housing 21.
Described second clutch C2 is located between the connecting shaft 3 of rotor axis of electric 1 and the 3rd.
Described brake B1, first clutch C1 and second clutch C2 uses multi-sheet wet-type friction element.
The second described connecting shaft 2 is used as power output axis connection reduction gear.
Described reduction gear includes：Reduction gearing 11, big retarding gear 12, small reduction gearing 13, differential mechanism master
Reduction gearing 14, gear connecting shaft 15 and differential mechanism 17, wherein：Big retarding gear 12 and small reduction gearing 13 are arranged at gear connecting shaft
On 15, big retarding gear 12 engages with reduction gearing 11, and small reduction gearing 13 engages with differential mechanism final gear 14；Differential mechanism
Final gear 14 is arranged on differential mechanism 17.
Described differential mechanism 17 connects wheel 16 by vehicle semiaxis 18.
Described reduction gearing 11 engages to form first order deceleration, small reduction gearing 13 and differential mechanism with big retarding gear 12
The engagement of final gear 14 forms second level deceleration, and power is exported to the driving moment 16 of vehicle semiaxis 18 by differential mechanism 17 and rotated.
The present embodiment realizes three gears in electric-only mode：Second clutch C2 and brake B1 are when being closed at
First gear (EV-1), larger torque output now can be obtained using motor driving；First clutch C1 and second clutch
It is second gear (EV-2) when C2 is closed at, compound planetary is arranged between each element without relative rotation, realizes direct gear function；High car
During speed traveling, it is third gear (EV-3) when first clutch C1 and brake B1 are closed at, realizes overgear drive pattern.
The three described pure electric Drive Modes of gear and shifting element (first clutch C1, second clutch C2 and brake
B1 the control logic between) is as shown in table 1.
Each mode of operation of the transmission device of table 1
| Mode of operation | B1 | C1 | C2 |
| EV-1 | ● | 〇 | ● |
| EV-2 | 〇 | ● | ● |
| EV-3 | ● | ● | 〇 |
Note：〇 is open mode；● it is closure state.
During using first gear electric-only mode, second clutch C2 and brake B1 are closed at, now motor to turbine
Gearratio iEV1For：Wherein：i1For single planetary bevel gear planet row (sun gear 6, the first planetary gear 7 and
One external toothing 10) gearratio, i2For dual planetary gear planet row (sun gear 6, the first planetary gear 7, outside the second planetary gear 8 and second
Gear ring 9) gearratio, iFDFor reduction gearing total reduction ratio, i.e. the second connecting shaft 2 to the speed reducing ratio between wheel side.
Described single planetary bevel gear planet row gearratio i1For negative value, the numerically equal to number of teeth of the first external toothing 10 divided by the sun
Take turns 6 numbers of teeth；Described dual planetary gear planet row gearratio i2For on the occasion of the numerically equal to number of teeth of the second external toothing 9 divided by the sun
Take turns 6 numbers of teeth.
When speed increase, it is closed at first clutch C1 and second clutch C2, as second gear fixed speed ratio
The gearratio i of pure electric Drive Mode, now motor to turbineEV2For：iEV2=1*iFD。
During high speed traveling, brake B1 and first clutch C1 is closed, realizes overgear mode of operation, i.e. third gear is consolidated
The gearratio i of the pure electric Drive Mode of constant-speed ratio, now motor to wheel sideEV3For：
The present embodiment uses a brake B1 and two clutches C1, C2, realizes the pure electricity of lower three gears of single motor
Dynamic drive pattern, wherein comprising a direct gear and an overgear, can take into account the use of low-speed big and high speed needs
Ask.
The above-mentioned specific implementation for precursor vehicle can be by those skilled in the art without departing substantially from the principle of the invention and objective
On the premise of local directed complete set is carried out to it in a different manner, protection scope of the present invention is defined by claims and not by upper
State specific implementation to be limited, each implementation in the range of it is by the constraint of the present invention.
Claims (6)
1. the pure electric transmission machanism of the gear of one kind three, it is characterised in that including：Housing, the motor being arranged in housing, planet carrier,
Compound planetary row, brake, first clutch and second clutch, wherein：Motor stator and the brake fixed setting of motor
In on housing, brake is connected with compound planetary row；The rotor of motor is connected by rotor axis of electric with planet carrier, planet
Frame is fixedly connected with compound planetary row；First clutch and second clutch respectively between rotor axis of electric and planet carrier,
Between rotor axis of electric and compound planetary row.
2. the pure electric transmission machanism of three gear according to claim 1, it is characterized in that, described compound planetary row includes：Too
Positive wheel, the first planetary gear, the second planetary gear, the first external toothing, the second external toothing, the first connecting shaft, the second connecting shaft and the 3rd connecting shaft,
Wherein：First planetary gear is engaged with sun gear, and sun gear is fixedly installed on the 3rd connecting shaft；First planetary gear is simultaneously also with first
External toothing is engaged, and the first external toothing is fixedly connected with the first connecting shaft；First planetary gear, the second planetary gear and the second external toothing are successively
Engagement, the second external toothing are fixedly connected with the second connecting shaft.
3. the pure electric transmission machanism of three gear according to claim 2, it is characterized in that, described the first planetary gear and the second row
Star-wheel is arranged on planet carrier.
4. the pure electric transmission machanism of three gear according to claim 2, it is characterized in that, described brake is located at the first connecting shaft
Between housing.
5. the pure electric transmission machanism of three gear according to claim 2, it is characterized in that, described second clutch is located at motor
Between armature spindle and the 3rd connecting shaft.
6. the pure electric transmission machanism of three gear according to claim 1, it is characterized in that, described brake, first clutch
Multi-sheet wet-type friction element is used with second clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784077.1U CN206943341U (en) | 2017-06-30 | 2017-06-30 | The three pure electric transmission machanisms of gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784077.1U CN206943341U (en) | 2017-06-30 | 2017-06-30 | The three pure electric transmission machanisms of gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206943341U true CN206943341U (en) | 2018-01-30 |
Family
ID=61367576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720784077.1U Active CN206943341U (en) | 2017-06-30 | 2017-06-30 | The three pure electric transmission machanisms of gear |
Country Status (1)
| Country | Link |
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| CN (1) | CN206943341U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230577A (en) * | 2019-05-08 | 2019-09-13 | 沈阳建筑大学 | A kind of lifting mechanism of tower crane energy recycle device |
| CN113928101A (en) * | 2021-11-11 | 2022-01-14 | 江苏华永复合材料有限公司 | Single-motor coaxial two-gear electric drive axle |
-
2017
- 2017-06-30 CN CN201720784077.1U patent/CN206943341U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230577A (en) * | 2019-05-08 | 2019-09-13 | 沈阳建筑大学 | A kind of lifting mechanism of tower crane energy recycle device |
| CN113928101A (en) * | 2021-11-11 | 2022-01-14 | 江苏华永复合材料有限公司 | Single-motor coaxial two-gear electric drive axle |
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