CN101435489A - Double-clutch automatic speed variator - Google Patents
Double-clutch automatic speed variator Download PDFInfo
- Publication number
- CN101435489A CN101435489A CN 200810237151 CN200810237151A CN101435489A CN 101435489 A CN101435489 A CN 101435489A CN 200810237151 CN200810237151 CN 200810237151 CN 200810237151 A CN200810237151 A CN 200810237151A CN 101435489 A CN101435489 A CN 101435489A
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- Prior art keywords
- clutch
- countershaft
- sprocket
- gear
- double
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to a double-clutch automatic transmission, which comprises an input shaft (25), an intermediate shaft (8), double countershaft, a first clutch (6), a second clutch (2), a power input device and a power output device, wherein the countershaft comprises a first countershaft (7) and a second countershaft (3); the first clutch (6) is fixed on the first countershaft (7); the second clutch (2) is fixed on the second countershaft (3); and the power input device is a sprocket drive device. The transmission has the advantages of small gear quantity, small axial length and light weight, and is easier to be arranged and used in a small-size front-wheel drive car.
Description
Technical field
The present invention relates to a kind of transmission for vehicles, particularly relate to a kind of double-clutch automatic gearbox.
Background technique
Existing double-clutch automatic transmission comprises two clutches, synchromesh unit, shift control, automatical control system TCU and six gear speed changers, these two wet clutches are separately fixed on two countershafts, the driving gear of strange, the even gear of speed changer drives with two wet clutches respectively and is connected, and two clutches alternately transmit operation power and realize switching between the gear.But, there is following shortcoming in this kind gear: because two wet clutches are separately fixed on two input shafts, one of them input shaft be tubulose and be enclosed within another input shaft, this another input shaft with its gear cloth outside the end of tubular shafts, this layout has increased volume, weight and the price of gear, and is difficult for being installed on the compact car.
Summary of the invention
The object of the present invention is to provide the double-clutch automatic gearbox that gear quantity is few, axial length is short.
The objective of the invention is to be achieved through the following technical solutions: a kind of double-clutch automatic gearbox, comprise input shaft, jack shaft, countershaft, described countershaft comprises first countershaft and second countershaft; Be fixed on the first clutch on described first countershaft; Be fixed on the second clutch on described second countershaft; Power input device and power take-off is characterized in that: described power input device is sprocket transmission device, and is concrete, can be the double-stranded wheel transmission device of tandem.Further, described input shaft, described first countershaft and described second countershaft are parallel to each other; Described power input device comprises input sprocket, clutch sprocket and the countershaft sprocket on the described input shaft; Described clutch sprocket comprises second clutch sprocket wheel that is fixed on the described second clutch and the first clutch sprocket wheel that is fixed on the described first clutch; Described second clutch sprocket wheel is connected by chain with the input shaft sprocket wheel, and described countershaft sprocket is connected by chain with the first clutch sprocket wheel.Chain-driven is the single-stage tandem, and the velocity ratio of two-stage chain can be identical, also can be different.
For making installation more convenient, the described countershaft sprocket clutch sprocket coaxial with it is holistic double-stranded wheel.
Described input sprocket and described input shaft can be integral type, and be promptly as a whole.
The concrete mode of described countershaft sprocket setting can be to be fixed on the described second clutch, accordingly, second clutch, second clutch sprocket wheel, countershaft sprocket, fourth gear driving gear, two fourth gear synchronizers and second gear driving gear be can set gradually on described second countershaft, four or five grades of driven gears, two or three reverse gear driven gear and first speed driven gears set gradually on the described jack shaft; Set gradually first clutch, first clutch sprocket wheel, five grades of driving gears, five reverse gear synchronizers, reverse driving gear, third speed drive gear, a third gear synchronizer and one grade of driving gear on described first countershaft.At this moment, after countershaft sprocket is positioned at the second clutch sprocket wheel, so after second level chain-driven is positioned at first order chain-driven, countershaft sprocket can certainly be arranged on the second clutch sprocket wheel before, make second level chain-driven be positioned at first order chain-driven before.
Certainly countershaft sprocket also can be fixed on the first clutch and keeps other structures of speed changer constant.
Described power take-off is a differential mechanism, the input gear of described differential mechanism and described four or five grades of driven gears engagement.
The invention has the beneficial effects as follows:
(1) because described input shaft, described first countershaft and described second countershaft are parallel to each other, described power input device comprises the input sprocket that is fixed on the described input shaft, clutch sprocket and countershaft sprocket, described clutch sprocket comprises second clutch sprocket wheel that is fixed on the described second clutch and the first clutch sprocket wheel that is fixed on the described first clutch, described countershaft sprocket with its not the clutch sprocket on same countershaft be connected by chain, described input sprocket be connected by chain with the coaxial clutch sprocket of described countershaft sprocket, it is the form that sprocket driving is adopted in the power input, therefore when reducing transmission gear quantity, also reduced the axial length of speed changer, and in transmission design, if can reduce by 10% length, volume or weight is very significant, this can make this speed changer dock with more vehicle, saves the space of car load.
(2) because the described countershaft sprocket clutch sprocket coaxial with it is a whole double-stranded wheel, therefore more can save the speed changer space.
(3) the concrete mode of described countershaft sprocket setting can be to be fixed on the described second clutch, accordingly, can set gradually second clutch on described second countershaft, the second clutch sprocket wheel, countershaft sprocket, the fourth gear driving gear, two fourth gear synchronizers and second gear driving gear, set gradually four or five grades of driven gears on the described jack shaft, two or three reverse gear driven gear and first speed driven gears, set gradually first clutch on described first countershaft, the first clutch sprocket wheel, five grades of driving gears, five reverse gear synchronizers, reverse driving gear, third speed drive gear, one third gear synchronizer and one grade of driving gear, so reasonable structural arrangement of the present invention, and second gear, the shared driven gear of third gear and reverse driving gear, fourth gear, five grades of shared driven gears of driving gear, further reduced the quantity of gear, thereby made that also the weight of speed changer is lighter.
(4) because described power take-off is a differential mechanism, the input gear of described differential mechanism and described four or five grades of driven gears engagement, so the present invention can satisfy speed changer required transmission efficiency usually when reducing the speed changer axial length.
In a word, since above structure, the gear negligible amounts that speed changer of the present invention adopts, axial length is short, and volume is small and exquisite, can be suitable for using on small-sized forerunner's formula car.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the diagrammatic side views of this Fig. 1.
Fig. 3 is the structural representation of the embodiment of the invention 2.
Among the figure, 1, input sprocket; 2, second clutch; 3, second countershaft; 4, countershaft sprocket; 5, chain; 6, first clutch; 7, first countershaft; 8, jack shaft; 9, one grade of driving gear; 10, second gear driving gear; 11, third speed drive gear; 12, fourth gear driving gear; 13, five grades of driving gears; 14, reverse driving gear; 15, reverse idler gear; 16, first speed driven gear; 17, two or three reverse gear driven gears; 18, four or five grades of driven gears; 19, differential mechanism; 20, a third gear synchronizer; 21, two fourth gear synchronizers; 22, five reverse gear synchronizers; 23, first clutch sprocket wheel; 24, second clutch sprocket wheel; 25, input shaft; 26, bearing.
Embodiment
Embodiment 1: as depicted in figs. 1 and 2, a kind of double-clutch automatic gearbox comprises the input shaft 25 that is wholely set input sprocket 1 on it; Jack shaft 8; First countershaft 7; Second countershaft 3; Described input shaft 25, described first countershaft 7 and described second countershaft 3 are parallel to each other; Be fixed on the first clutch 6 on described first countershaft 7; Be fixed on the second clutch 2 on described second countershaft 3; Power input device and power take-off; Set gradually first clutch 6, first clutch sprocket wheel 23, five grades of driving gears 13, five reverse gear synchronizers 22, reverse driving gear 14, third speed drive gear 11, a third gear synchronizer 20 and one grade of driving gear 9 on described first countershaft 7; Set gradually second clutch 2, second clutch sprocket wheel 24, countershaft sprocket 4, fourth gear driving gear 12, two fourth gear synchronizers 21 and second gear driving gear 10 on described second countershaft 3; Set gradually four or five grades of driven gears, 18,23 reverse gear driven gears 17 and first speed driven gear 16 on the described jack shaft 8; Described countershaft sprocket 4 and described first clutch sprocket wheel 23 are connected by chain, and described input sprocket 1 and described second clutch sprocket wheel 24 are connected by chain; Described countershaft sprocket 4 is the double-stranded wheel of an integrated type with described second clutch sprocket wheel 24; Described power take-off is a differential mechanism 19, the input gear of described differential mechanism 19 and 18 engagements of described four or five grades of driven gears.
Power transmission line of the present invention is as follows:
One grade of transfer route:
Gearshift mechanism is stirred a third gear synchronizer 20 in advance and is put into first gear driving gear 9, and engine power is passed to input sprocket 1 through behind the torsional vibration damper; Input sprocket 1 is passed to second clutch sprocket wheel 24 with engine power by chain 5; Countershaft sprocket 4 is passed to first clutch sprocket wheel 23 by chain 5; First clutch 6 closures, transmission of power is given first countershaft 7; One grade of driving gear 9 engagement first speed driven gear 16 rotates; Jack shaft 8 rotates; Four or five grades of driven gears 18 rotate; Differential mechanism 19 rotates, power output.
The second gear transfer route:
Gearshift mechanism is stirred two fourth gear synchronizers 21 in advance and is put into second gear driving gear 10, and engine power is passed to input sprocket 1 through behind the torsional vibration damper; Input sprocket 1 is passed to second clutch sprocket wheel 24 with engine power by chain 5; Second clutch 2 closures, transmission of power is given second countershaft 3; Second gear driving gear 10 engagement second gear driven gears 17 rotate; Jack shaft 8 rotates; Four or five grades of driven gears 18 rotate; Differential mechanism 19 rotates, power output.
The third gear transfer route:
Gearshift mechanism is stirred a third gear synchronizer 20 in advance and is put into third gear driving gear 11, and engine power is passed to input sprocket 1 through behind the torsional vibration damper; Input sprocket 1 is passed to second clutch sprocket wheel 24 with engine power by chain 5; Countershaft sprocket 4 is passed to first clutch sprocket wheel 23 by chain 5; First clutch 6 closures, transmission of power is given first countershaft 7; Third speed drive gear 11 engagement third gear driven gears 17 rotate; Jack shaft 8 rotates; Four or five grades of driven gears 18 rotate; Differential mechanism 19 rotates, power output.
The fourth gear transfer route:
Gearshift mechanism is stirred two fourth gear synchronizers 21 in advance and is put into fourth gear driving gear 12, and engine power is passed to input sprocket 1 through behind the torsional vibration damper; Input sprocket 1 is passed to second clutch sprocket wheel 24 with engine power by chain 5; Second clutch 2 closures, transmission of power is given second countershaft 3; Fourth gear driving gear 12 engagement fourth gear driven gears 18 rotate; Differential mechanism 19 rotates, power output.
Five grades of transfer routes:
Gearshift mechanism is stirred five reverse gear synchronizers 22 in advance and is put into fifth gear driving gear 13, and engine power is passed to input sprocket 1 through behind the torsional vibration damper; Input sprocket 1 is passed to second clutch sprocket wheel 24 with engine power by chain 5; Countershaft sprocket 4 is passed to first clutch sprocket wheel 23 by chain 5; First clutch 6 closures, transmission of power is given first countershaft 7; Five grades of driven gears of five grades of driving gear 13 engagements 18 rotate; Differential mechanism 19 rotates, power output.
The reverse gear transfer route:
Gearshift mechanism is stirred five reverse gear synchronizers 22 in advance and is hung up reverse driving gear 14, and engine power is passed to input sprocket 1 through behind the torsional vibration damper; Input sprocket 1 is passed to second clutch sprocket wheel 24 with engine power by chain 5; Countershaft sprocket 4 is passed to first clutch sprocket wheel 23 by chain 5; First clutch 6 closures, transmission of power is given first countershaft 7; Reverse driving gear 14 engagement reverse idler gears 15 rotate; Reverse idler gear 15 engagement reverse gear driven gears 17 rotate, and jack shaft 8 rotates; Four or five grades of driven gears 18 rotate; Differential mechanism 19 rotates, power output.
Embodiment 2: different is for present embodiment and embodiment: set gradually second clutch 2, countershaft sprocket 4, second clutch sprocket wheel 24, fourth gear driving gear 12, two fourth gear synchronizers 21 and second gear driving gear 10 on described second countershaft 3.Other structures of present embodiment are identical with embodiment 1.The power transmission line of present embodiment is identical with embodiment 1.
Claims (8)
1, a kind of double-clutch automatic gearbox comprises input shaft (24); Jack shaft (8); Countershaft, described countershaft comprise first countershaft (7) and second countershaft (3); Be fixed on the first clutch (6) on described first countershaft (7); Be fixed on the second clutch (2) on described second countershaft (3); Power input device and power take-off is characterized in that: described power input device is a sprocket transmission device.
2, double-clutch automatic gearbox as claimed in claim 1 is characterized in that: described input shaft (24), described first countershaft (7) and described second countershaft (3) are parallel to each other; Described power input device comprises input sprocket (1), the clutch sprocket that is fixed on the described input shaft (24) and is fixed on countershaft sprocket (4) on the described countershaft; Described clutch sprocket comprises the second clutch sprocket wheel (22) that is fixed on the described second clutch (2) and is fixed on first clutch sprocket wheel (23) on the described first clutch (6); Described countershaft sprocket (4) with its not the clutch sprocket on same countershaft be connected by chain, described input sprocket (1) be connected by chain with the coaxial clutch sprocket of described countershaft sprocket (4).
3, double-clutch automatic gearbox as claimed in claim 2 is characterized in that: described countershaft sprocket (4) clutch sprocket coaxial with it is a whole chain drum.
4, double-clutch automatic gearbox as claimed in claim 2 is characterized in that: described input sprocket (1) is an integral type with described input shaft (24).
5, as claim 2,3 or 4 described double-clutch automatic gearboxes, it is characterized in that: described countershaft sprocket (4) is fixed on the described second clutch (2).
6, double-clutch automatic gearbox as claimed in claim 5 is characterized in that: set gradually second clutch (2), countershaft sprocket (4), second clutch sprocket wheel (22), fourth gear driving gear (12), two fourth gear synchronizers (25) and second gear driving gear (10) on described second countershaft (3).
7, double-clutch automatic gearbox as claimed in claim 6 is characterized in that: set gradually four or five grades of driven gears (18), two or three reverse gear driven gears (17) and first speed driven gear (16) on the described jack shaft (8); Set gradually first clutch (6), first clutch sprocket wheel (23), five grades of driving gears (13), five reverse gear synchronizers (26), reverse driving gear (14), third speed drive gear (11), a third gear synchronizer (20) and one grade of driving gear (9) on described first countershaft (7).
8, double-clutch automatic gearbox as claimed in claim 7 is characterized in that: described power take-off is a differential mechanism (19), the input gear of described differential mechanism (19) and described four or five grades of driven gears (18) engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810237151 CN101435489B (en) | 2008-12-19 | 2008-12-19 | Double-clutch automatic speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810237151 CN101435489B (en) | 2008-12-19 | 2008-12-19 | Double-clutch automatic speed variator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101435489A true CN101435489A (en) | 2009-05-20 |
| CN101435489B CN101435489B (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810237151 Active CN101435489B (en) | 2008-12-19 | 2008-12-19 | Double-clutch automatic speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101435489B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483100A (en) * | 2009-09-17 | 2012-05-30 | 博格华纳公司 | Electric vehicle three speed dual clutch transmission |
| CN109723769A (en) * | 2019-03-08 | 2019-05-07 | 重庆青山工业有限责任公司 | The two reduction gear of pure electric vehicle retarder |
| CN111465552A (en) * | 2017-05-22 | 2020-07-28 | 弗拉迪米尔·格里戈列维奇·冈查洛夫 | Speed variator for electric bicycle |
-
2008
- 2008-12-19 CN CN 200810237151 patent/CN101435489B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483100A (en) * | 2009-09-17 | 2012-05-30 | 博格华纳公司 | Electric vehicle three speed dual clutch transmission |
| CN102483100B (en) * | 2009-09-17 | 2015-08-19 | 博格华纳公司 | Electric vehicle three speed dual-clutch transmission |
| CN111465552A (en) * | 2017-05-22 | 2020-07-28 | 弗拉迪米尔·格里戈列维奇·冈查洛夫 | Speed variator for electric bicycle |
| CN109723769A (en) * | 2019-03-08 | 2019-05-07 | 重庆青山工业有限责任公司 | The two reduction gear of pure electric vehicle retarder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101435489B (en) | 2010-11-03 |
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