CN103438163B - A kind of multi-speed planetary gear type double-clutch gearbox - Google Patents
A kind of multi-speed planetary gear type double-clutch gearbox Download PDFInfo
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- CN103438163B CN103438163B CN201310321270.8A CN201310321270A CN103438163B CN 103438163 B CN103438163 B CN 103438163B CN 201310321270 A CN201310321270 A CN 201310321270A CN 103438163 B CN103438163 B CN 103438163B
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Abstract
The open a kind of multi-speed planetary gear type double-clutch gearbox of the present invention, including the first clutch and the first power shaft of correspondence, second clutch and the second power shaft of correspondence, multiple lock units, output shaft, the described first and second sheathed setting of power shaft, also includes first, second double-row planetary gear, intermeshing first gear and the second gear and the 3rd gear and the 4th gear；One of them double-row planetary gear of described first, second double-row planetary gear is made up of two rows of planetary rows, and in front planet row, front sun gear is connected with rear planet carrier, and by first, often engagement lock unit or clutch are fixed with housing；Rear planet row uses dual planetary gear structure, and front ring gear is connected with rear gear ring, power can by the second lock unit or the 3rd lock unit or clutch outer shaft after first be delivered to rear sun gear or after gear ring, and exported by front planet carrier.The present invention realizes more multiple gear ratios gear with few gear logarithm, reduces transmission dimensions, and vehicle structure layout designs is more flexible.
Description
Technical field
The present invention relates to automotive transmission technical field, concretely relate to the double clutch of a kind of multi-speed planetary gear type and become
Speed device.
Background technology
Automotive transmission drive mechanism is different by train pattern used, has axis interconnection system variator (parallel shaft transmission)
With axis rotary speed gear (planetary transmission) two kinds.Single clutch speed changer can be divided into double by the quantity of clutch
Clutch speed changer.The power drive mechanism of the double-clutch speed changer of application is parallel shaft transmission at present, and power transmission is divided into two
Bar route, one is odd number shelves transfer route, and two is even gear transfer route, two articles of power transmission lines respectively by first, the
Two clutches connect first, second power shaft, then by the travelling gear on the driven shaft corresponding with two power shafts, power is defeated
Going out, double-clutch speed changer is controlled by the coordination of two clutches and each lock unit controls, it is possible to realize in the feelings not cutting off power
Transmission ratio under condition, thus shorten shift time.But parallel-axis type double-clutch speed changer must use single reversing shaft
And back gear.When using an output shaft, variator axial dimension is big；When using two output shafts, variator radial ruler
Very little greatly, take up room big, be unfavorable for the structure layout design of automobile.The double-clutch speed changer drive shift of application at most uses at present
7 grades, most widely used is six grades, and speed ratio changes greatly, and during such gear shift, engine speed changes greatly, and makes the power of automobile
Property, economical the most less desirable, ride comfort is poor.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of by the double clutch change of the multi-speed planetary gear type of brand new
Speed device, structure is the compactest, reduces the axially and radially size of variator, and forward can be more simultaneously, existing to overcome
The deficiency of technology.
For solving above-mentioned technical problem, the technical solution used in the present invention is: the double clutch of a kind of multi-speed planetary gear type becomes
Speed device, including the first clutch and the second power shaft of the first power shaft of correspondence, the second clutch and correspondence, multiple lock units, defeated
Shaft, the described first and second sheathed setting of power shaft, also include first, second double-row planetary gear, intermeshing first gear
With the second gear and the 3rd gear and the 4th gear；One of them double planetary gear of described first, second double-row planetary gear
Being to be made up of two rows of planetary rows, in front planet row, front sun gear is connected with rear planet carrier, often engages synchronization by first
Device or clutch are fixed with housing；Rear planet row uses dual planetary gear structure, and front ring gear is connected with rear gear ring, and power can lead to
Cross the second lock unit or the 3rd lock unit or clutch outer shaft after first be delivered to rear sun gear or after gear ring, and by front planet
Frame exports.
One of them double-row planetary gear of described first, second double-row planetary gear uses Ravigneaux formula change set
Structure, small sun gear engages with short planetary gear and is connected with the second jackshaft, and short planetary gear engages with long planetary gear, rear planet row
Big sun gear also engages with long planetary gear, and big sun gear and the second outer shaft connect, planet row common planet carrier and a tooth front and back
Circle, planet carrier and the second jackshaft connect, and gear ring and the second gear connect.
Described first gear is connected with the planet carrier of the front planet row of described first double-row planetary gear, described second gear
Being connected with the gear ring of the front planet row of described second double-row planetary gear, described 3rd gear is connected with described first power shaft,
7th lock unit of described 4th gear and the second double-row planetary gear connects, and described output shaft is connected with described second gear.
Described first before often engagement lock unit is located at the first double-row planetary gear first between outer shaft and housing, and second synchronizes
Device is arranged between the rear gear ring of the first double-row planetary gear and the 3rd lock unit, described 3rd lock unit be arranged on first after outside
Between axle and the second power shaft.
4th lock unit is arranged between the rear planet carrier of the second double-row planetary gear and the second outer shaft, and the 5th lock unit sets
Put between the second outer shaft and second often engagement lock unit of the second double-row planetary gear, the described second often engagement lock unit setting
Between second jackshaft and the 7th lock unit of the second double-row planetary gear, described 7th lock unit is arranged on the second double row
Between second jackshaft and the 4th gear of star wheel series.
Described first double-row planetary gear uses Ravigneaux formula gear shift, and small sun gear engages also with short planetary gear
Being connected with the second jackshaft, short planetary gear engages with long planetary gear, and the big sun gear of rear planet row also engages with long planetary gear, greatly
Sun gear and the second outer shaft connect, planet row common planet carrier and a gear ring front and back, and planet carrier and the second jackshaft connect, tooth
Circle is connected with the second gear, and second often engages lock unit is arranged between the second jackshaft and the second power shaft.
Second gear engages with main reducing gear driven gear, main reducing gear driven gear connected with differential.
Compared with prior art, the invention have the advantages that the present invention is the base at existing dual-clutch transmission
On plinth, by using the combination of Ravigneaux formula gear shift and novel double-row star row's gear shift, and coordinate two
Clutch, multiple lock unit use, make it both can reach with few gear logarithm realize more the purpose of multiple gear ratios gear, again
Can realize the shift property of dual-clutch transmission, and the axially and radially size of variator can be reduced, make the chi of variator
Very little size is controlled, and vehicle structure layout designs is more flexible, owing to can reduce production cost.TR increases simultaneously
Adding, speed ratio change is less, and during such gear shift, engine speed change is less, makes the dynamic property of automobile, economical the most more satisfactory,
Gear shift ride comfort is improved simultaneously.
Accompanying drawing explanation
Fig. 1 is the power drive mechanism schematic diagram of double-clutch speed changer first embodiment of the present invention；
Fig. 2 is the power drive mechanism schematic diagram of second embodiment of the invention；
Fig. 3 is the structural representation of the output form change of double-clutch speed changer of the present invention.
Detailed description of the invention
The present invention the first double-row planetary gear and the second double-row planetary gear use Ravigneaux formula gear shift or new
Type double planet wheel rows of mixing gear shift.Multiple transmission scheme can be obtained by combination.
Below, in conjunction with Figure of description and specific embodiment, technical scheme is further described, it should
Understanding, specific embodiment described herein only in order to explain the present invention, is not intended that limitation of the present invention.
First embodiment (seven grades)
See Fig. 1, the double clutch of the present invention include double clutch component 1 (include first clutch 2 and second clutch 3,
First power shaft the 4, second power shaft 5 of corresponding two clutches, first double-row planetary gear the 181, second double-row planetary gear respectively
182, output shaft 8 and multiple lock unit.First double-row planetary gear is arranged with up-down structure with the second double-row planetary gear, first
Double-row planetary gear uses novel double-row star row's gear shift, and the second double-row planetary gear uses Ravigneaux formula gear shift
Mechanism, the first double-row planetary gear includes that first planet arranges X1 and the second planet row X2, and the second double-row planetary gear includes the 3rd
Planet row before planet row X3() and fourth planet row X4(after planet row).Second power shaft 5 is set in outside the first power shaft 4.
The front sun gear 105 of the first double-row planetary gear, rear planet carrier 106 are connected with outer shaft before first 115, front ring gear
103 are connected with rear gear ring 107, and front planet carrier 102 is connected with the first gear 161, and rear planet row X2 uses dual planetary gear structure shape
Formula, layman's star-wheel 108 and expert's star-wheel 109 engage each other, and rear sun gear 110 is connected with outer shaft after first 114.Outer shaft after first
Before 114 and first, outer shaft 115 is set in outside the second power shaft 5.
The front planet row X3 of the second double-row planetary gear uses dual planetary gear version, small sun gear 133 and short planet
Wheel 123 engagement is also connected with the second jackshaft 132, and short planetary gear 123 engages with long planetary gear 124, rear planet row X4 the most too
Sun wheel 125 also engages with long planetary gear 124, and big sun gear 125 is connected with the second outer shaft 131, planet row common planet carrier front and back
121 and a gear ring 122, planet carrier 121 is connected with the second middle major axis 130, and gear ring 122 is connected with the second gear 162 and leads to
Cross output shaft 8 and carry out power output.Second outer shaft 131 is located at outside the second jackshaft 132.
First power shaft 4 other end connects has the 3rd gear 163, the 3rd gear 163 to engage with the 4th gear 164, and first
Gear 161 engages with the second gear 162, and the second gear 162 is connected with output shaft 8, and output shaft 8 and dual clutch pack 1 are same
Side.
First before often engagement lock unit 101 is located at the first double-row planetary gear 181 first between outer shaft 115 and housing, the
Two lock units (fourth gear lock unit 112) are arranged on rear gear ring 107 and the 3rd lock unit (two, six of the first double-row planetary gear 181
Shelves lock unit 113) between.3rd lock unit (two, six grades of lock units 113) be arranged on first after outer shaft 114 and the second power shaft 5
Between.
4th lock unit (one, third gear lock unit 126) is arranged between planet carrier 121 and the second outer shaft 131, and the 5th synchronizes
Device (reversing-gear synchronizer 127) is arranged on the second outer shaft 131 and often engages between lock unit 128 with second, and second often engages lock unit
128 are arranged between the second jackshaft 132 and the 7th lock unit 129, set between the 7th lock unit (five, seven grades of lock units) 129
Put between the second middle major axis 130 and the 4th gear 164.
The double-clutch speed changer of the present embodiment can realize seven speed drive shifts and a speed reverse gear.First double-row planetary gear 181
Realize two, four, six gears to control.Second double-row planetary gear 182 realizes one, three, five, seven grades and reverse gear manipulation.
As follows in the action of each gear lock unit and clutch:
During neutral state, as it is shown in figure 1, first often engages lock unit 101 by outer shaft before the first double-row planetary gear first
115 link together with housing maintains static, second often engagement lock unit 128 by second double-row planetary gear the second jackshaft
132 link together with the 7th lock unit 129.One, third gear lock unit 126 is in an intermediate position, fourth gear lock unit 112 and two,
Six grades of lock units 113 and five, seven grades of lock units 129 and reversing-gear synchronizer 127 are in not engagement state on right side.
One grade: one, third gear lock unit 126 moves to left, the planet carrier 121 in the second double-row planetary gear 182 is maintained static
Dynamic, such second double-row planetary gear 182 forms restriction relation.First clutch 2 engages simultaneously.Power is through first clutch 2
Pass to the first power shaft 4, the 3rd gear 163, the 4th gear 164, then arrive output shaft 8 through the second double-row planetary gear 182.This
Time second clutch 3 be in released state, remaining lock unit is in position during neutral state.
Two grades: two, six grades of lock units 113 move to left, outer shaft 114 after first is connected with the second power shaft 5, such first pair
Rows of planetary train 181 forms restriction relation.First clutch 2 separates, and second clutch 3 engages simultaneously, and power is through the second clutch
Device 2 passes to the second power shaft 5, through the first double-row planetary gear 182, and the first gear 161, the second gear 162, then by output shaft
8 outputs.
Third gear: one, third gear lock unit 126 moves to right, connects the second outer shaft 131, thus also by the second double-row planetary gear
Big sun gear 125 connect motionless.Second clutch 3 separates, and first clutch 2 engages, it is achieved third gear power transmits.Power warp
First clutch 2 passes to the first power shaft 4, the 3rd gear 163, the 4th gear 164, then through the second double-row planetary gear 182
To output shaft 8.
Fourth gear: fourth gear lock unit 112 moves to left, is connected rear gear ring 107 with two, six grades of lock units 113.First clutch 2
Separating, second clutch 3 engages, it is achieved fourth gear power transmits.Power passes to the second power shaft 5 through second clutch 2, through
One double-row planetary gear 181, the first gear 161, the second gear 162, then exported by output shaft 8.
Five grades: five, seven grades of lock units 129 move to left, the 4th gear 164 is attached with the second middle major axis 130.Second
Clutch 3 separates, and first clutch 2 engages, it is achieved five grades of power transmission.
Six grades: first often engages lock unit 101 moves to right, and two, six grades of lock units 113, fourth gear lock units 112 move to left simultaneously.
First clutch 2 separates, and second clutch 3 engages, it is achieved six grades of shelves power transmission.Power passes to through second clutch 2
Two power shafts 5, through the first double-row planetary gear 181, the first gear 161, the second gear 162, then are exported by output shaft 8.
Seven grades: five, seven grades of lock units 129 move to left, the 4th gear 164 is attached with the second middle major axis 130, second
Often engagement lock unit 128 moves to right, simultaneously one, third gear lock unit 126 move to right, the second outer shaft 131 is fixed.Second clutch 3 points
From, first clutch 2 engages, it is achieved seven grades of power transmission.Power passes to the first power shaft 4, the 3rd tooth through first clutch 2
Wheel 163, the 4th gear 164, then through the second double-row planetary gear 182 to output shaft 8.
Reverse gear: reversing-gear synchronizer 127 moves to left, by the second outer shaft 131 with second often engagement lock unit 128 be connected, one, third gear
Lock unit 126 moves to left fixed carrier 121.Second clutch 3 separates, and first clutch 2 engages, it is achieved reverse gear power transmits.
Power passes to the first power shaft 4 through first clutch 2, the 3rd gear 163, the 4th gear 164, then through the second double planetary gear
It is 182 to output shaft 8.
Double-clutch speed changer in this invention can realize multiple transforming gear pattern:
Sequentially shift mode:
Order upshift, by one grade be raised to two grades as a example by, before shifting commands sends, variator is in a gear duty.Accurate
Standby implement gearshift before need in advance two, six grades of lock units 113 to be moved to left to be connected with the second power shaft 5 by outer shaft 114 after first, this
Time first clutch 2 and second clutch 3 still be respectively at joint and released state.When control system send shifting commands by
One grade when being raised to two grades, all lock unit hold modes are motionless, and first clutch 2 progressively separates, and second clutch 3 is progressively simultaneously
Engaging, until first clutch 2 is kept completely separate, second clutch 3 is fully engaged, and controls one, during third gear lock unit 126 returns to
Between position, make the second double-row planetary gear planet carrier 121 unfettered, remaining is the most motionless with one grade and two grades of unrelated lock units
Make.Order upshift and the order downshift of other gears deduce the most in the same way.
Jump shift mode:
Odd gear change to even gear jump rise downshift, as one grade be raised to fourth gear or seven grades drop to fourth gear etc., even number
Gear is changed to the jump of odd gear and is risen downshift, and as two upshifts drop to third to five grades or six grades, its gear changing mode rises with order
The control method of shelves is the same, and available same method deduces.
Odd gear change to odd gear jump upshift, by one grade rise third gear as a example by, before shifting commands sends, variator
It is in a gear duty.Prepare implement gearshift before, first clutch 2 separates, one, third gear lock unit 126 briefly return to interposition
Put, then move to right the big sun gear 125 of the second double-row planetary gear is connected motionless.First clutch 2 is rejoined, and completes one grade and rises
The control of third gear.In the process, second clutch 3 is constantly in released state, and remaining is unrelated with one grade and third gear synchronization
Device is also failure to actuate.Odd gear change to odd gear jump downshift and even gear change to even gear jump rise downshift with
The jump upshift control method that odd gear changes to odd gear is the same, and available same method deduces.
The setting of each gear gear ratio can be by each planet rowValue (Equal to planet row the gear ring number of teeth with
The ratio of the sun gear number of teeth), the first gear 161 and gear ratio of the second gear 162And the 3rd gear 163 and the 4th gear 164
Gear ratioSet.Such as setting the first double-row planetary gear and include that first planet arranges X1 and the second planet row X2, second is double
Planet circular system includes third planet row X3's and fourth planet row X4Value is respectively 2.1,2.1,4.4,3.2,1.08,1.25, then obtain each gear gear ratio shown in table 1, than level and gear shift executive component
Action.Numerically, the gear ratio of each gear, than level appropriate rationally, obtain preferable gear ratio characteristic.
The action schedule of table 1 gear shift executive component, each shelves transmission when ratio level figure
Zero represents that clutch engages or lock unit action
Second embodiment (six grades)
See Fig. 2, on the basis of first embodiment, by the position of the first double-row planetary gear Yu the second double-row planetary gear
Put exchange, cancel five, seven grades of lock units 129 and the second middle major axis 130, often engage lock unit 128 position by second and be arranged on
Between second jackshaft 132 and the second power shaft 5, double clutch components 1 are arranged on the right side of the first double-row planetary gear 181, output
Axle 8 is arranged in the first double-row planetary gear 181 with double clutch components 1 at same axis and at not homonymy.Second outer shaft 131 overlaps
It is located at outside the second jackshaft 132.Before after first, outer shaft 114 is set in first outside outer shaft 115.First power shaft 4 is set in second
Outside power shaft 5.
According to gear gear ratio arrange needs suitably change the first gear 161 and the second gear the 162, the 3rd gear 163 and
The gear ratio of the 4th gear 164, and each planet rowValue.Such first double-row planetary gear 181 realizes one, three, five
And reverse gear, the second double-row planetary gear 182 realizes two, four, six grades.
From above embodiment, output shaft 8 can change, when output shaft 8 sets with the position relationship of double clutch components 1
Not homonymy and the same side can be placed on double clutch components 1 when putting in the second double-row planetary gear 182, export when not homonymy
Axle 8 both can also can be at not coaxial line at same axis with double clutch components 1, when the same side, output shaft 8 can only be with double clutch groups
Part 1 is at not coaxial line.Can only be at not homonymy when output shaft 8 is arranged in the first double-row planetary gear 181, but same output shaft
8 can also can be at not coaxial line at same axis with double clutch components 1.Odd number shelves or even gear may be provided at the first double planetary gear
It is 181 also can be in the second double-row planetary gear 182.Obtain 10 kinds of transmission schemes from there through permutation and combination, see table 2.
Table 2 Ravigneaux formula gear shift and novel double-row star row's gear shift combination transmission scheme
It addition, in all transmission modes, double clutch components and the output shaft output form in the same side can suitably change,
Seeing Fig. 3, reduce the first gear 161 and the second gear 162 diameter, two gears directly engage with main reducing gear driven gear 190,
And externally export power by differential mechanism 191.
Claims (4)
1. a multi-speed planetary gear type double-clutch gearbox, including the first clutch and the first power shaft of correspondence, the second clutch
And the second power shaft of correspondence, multiple lock units, output shaft, the described first and second sheathed setting of power shaft, also include first,
Two double-row planetary gear, intermeshing first gear and the second gear and the 3rd gear and the 4th gear；It is characterized in that: institute
One of them double-row planetary gear stating first, second double-row planetary gear is made up of two rows of planetary rows, in front planet row, front
Sun gear is connected with rear planet carrier, and by first, often engagement lock unit or clutch are fixed with housing；Rear planet row uses
Dual planetary gear structure, front ring gear is connected with rear gear ring, and power can pass through the second lock unit or the 3rd lock unit or clutch
After first outer shaft be delivered to rear sun gear or after gear ring, and exported by front planet carrier；Described first, second double-row planetary gear
One of them double-row planetary gear use Ravigneaux formula gear shift, small sun gear engages with short planetary gear and with second
Jackshaft connects, and short planetary gear engages with long planetary gear, and the big sun gear of rear planet row also engages with long planetary gear, big sun gear
Being connected with the second outer shaft, front and back planet row common planet carrier and a gear ring, planet carrier and the second middle major axis connect, gear ring with
Second gear connects；Described first gear is connected with the planet carrier of the front planet row of described first double-row planetary gear, and described
Two gears are connected with the gear ring of the front planet row of described second double-row planetary gear, described 3rd gear and described first power shaft
Connecting, the 7th lock unit of described 4th gear and the second double-row planetary gear connects, described output shaft and described second gear
Connect；Described first before often engagement lock unit is located at the first double-row planetary gear first between outer shaft and housing, the second lock unit
Be arranged between the rear gear ring of the first double-row planetary gear and the 3rd lock unit, described 3rd lock unit be arranged on first after outer shaft
And between the second power shaft.
Multi-speed planetary gear type double-clutch gearbox the most according to claim 1, it is characterised in that: the 4th lock unit is arranged
Between the rear planet carrier and the second outer shaft of the second double-row planetary gear, the 5th lock unit is arranged on the second double-row planetary gear
Between second outer shaft and second often engagement lock unit, described second often engagement lock unit be arranged on the of the second double-row planetary gear
Between two jackshafts and the 7th lock unit, described 7th lock unit be arranged on the second middle major axis of the second double-row planetary gear with
Between 4th gear.
Multi-speed planetary gear type double-clutch gearbox the most according to claim 1, it is characterised in that: described first double row
Star wheel series uses Ravigneaux formula gear shift, and small sun gear engages with short planetary gear and is connected with the second jackshaft, short row
Star-wheel engages with long planetary gear, and the big sun gear of rear planet row also engages with long planetary gear, and big sun gear and the second outer shaft connect,
Planet row common planet carrier and a gear ring front and back, planet carrier and the second jackshaft connect, and gear ring and the second gear connect, and second
Often engagement lock unit is arranged between the second jackshaft and the second power shaft.
4. according to the arbitrary described multi-speed planetary gear type double-clutch gearbox of claims 1 to 3, it is characterised in that: the second tooth
Wheel engages with main reducing gear driven gear, main reducing gear driven gear connected with differential.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310321270.8A CN103438163B (en) | 2013-07-27 | 2013-07-27 | A kind of multi-speed planetary gear type double-clutch gearbox |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310321270.8A CN103438163B (en) | 2013-07-27 | 2013-07-27 | A kind of multi-speed planetary gear type double-clutch gearbox |
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| CN103438163A CN103438163A (en) | 2013-12-11 |
| CN103438163B true CN103438163B (en) | 2016-08-10 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711845B (en) * | 2013-12-30 | 2016-10-05 | 长城汽车股份有限公司 | Many gear double-clutch speed changers and vehicle |
| DE102015223131A1 (en) * | 2015-11-24 | 2017-05-24 | Schaeffler Technologies AG & Co. KG | Drive device for a motor vehicle |
| CN110657206B (en) * | 2018-06-29 | 2021-10-22 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN110657208B (en) * | 2018-06-29 | 2021-10-22 | 比亚迪股份有限公司 | Transmission, power driving system and vehicle |
| CN111434949A (en) | 2019-01-11 | 2020-07-21 | 罗灿 | Double-sun-wheel line-speed-variable planetary row speed reducer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797812A (en) * | 2012-08-23 | 2012-11-28 | 赵良红 | Double-clutch transmission device |
| CN102913598A (en) * | 2012-10-30 | 2013-02-06 | 顺德职业技术学院 | Planetary gear type manual transmission |
| CN203363023U (en) * | 2013-07-27 | 2013-12-25 | 顺德职业技术学院 | Multi-speed planetary gear type double-clutch transmission |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3777929B2 (en) * | 1999-12-24 | 2006-05-24 | アイシン精機株式会社 | Transmission |
| US6736751B1 (en) * | 2002-12-06 | 2004-05-18 | General Motors Corporation | Family of multi-speed dual-clutch transmissions having three interconnected planetary gear members |
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2013
- 2013-07-27 CN CN201310321270.8A patent/CN103438163B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797812A (en) * | 2012-08-23 | 2012-11-28 | 赵良红 | Double-clutch transmission device |
| CN102913598A (en) * | 2012-10-30 | 2013-02-06 | 顺德职业技术学院 | Planetary gear type manual transmission |
| CN203363023U (en) * | 2013-07-27 | 2013-12-25 | 顺德职业技术学院 | Multi-speed planetary gear type double-clutch transmission |
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