CN101463892A - Dual-clutch automatic speed transmission - Google Patents
Dual-clutch automatic speed transmission Download PDFInfo
- Publication number
- CN101463892A CN101463892A CN 200910103054 CN200910103054A CN101463892A CN 101463892 A CN101463892 A CN 101463892A CN 200910103054 CN200910103054 CN 200910103054 CN 200910103054 A CN200910103054 A CN 200910103054A CN 101463892 A CN101463892 A CN 101463892A
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- gear
- clutch
- countershaft
- sprocket
- driving
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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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- Mechanical Engineering (AREA)
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Abstract
The invention relates to a dual clutch automatic transmission, comprising an input shaft (23), a central shaft (7) and an auxiliary shaft, wherein, the auxiliary shaft comprises a first auxiliary shaft (6) and a second auxiliary shaft (5); a first clutch (4) which is fixed on the first auxiliary shaft (6); a second clutch (2) which is fixed on the second auxiliary shaft (5); a power output device and a power input device. The key is that the power input device is a transmission device featuring the connection of a gear and the chain in series. The clutch features fewer gears, short axial length and light weight, thus being easier to be arranged and used in a small front wheel driving sedan.
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 comprises input shaft; Jack shaft; Countershaft, described countershaft comprise 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 gear and chain tandem transmission device.Concrete, described input shaft, described first countershaft and described second countershaft are parallel to each other; Described power input device comprises the input gear that is fixed on the described input shaft, be fixed on described first or second clutch on clutch gear, be fixed on the clutch sprocket on another clutch and be fixed on countershaft sprocket on the described countershaft; Described countershaft sprocket is positioned on the different countershafts and by chain with described clutch sprocket and connects, described input gear and clutch gear engagement.Gear and with sprocket driving be two single-stage tandems, two stage gear ratios can be identical, also can be different.
The concrete mode of described countershaft sprocket setting can be to be fixed on the described second clutch, accordingly, set gradually second clutch, clutch gear, countershaft sprocket, fourth gear driving gear, two fourth gear synchronizers and second gear driving gear on described second countershaft; Set gradually four or five grades of driven gears, two or three reverse gear driven gear and first speed driven gears on the described jack shaft; Set gradually first clutch, clutch sprocket, 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.If when gear was made preposition rear-guard, described power take-off was described jack shaft, engine power directly output from the described jack shaft; When if gear is made preposition rear-guard, set gradually second clutch on then described second countershaft, countershaft sprocket, countershaft sprocket, the output driven gear, the fourth gear driving gear, two fourth gear synchronizers and second gear driving gear, set gradually the output driving gear on the described jack shaft, four or five grades of driven gears, two or three reverse gear driven gear and first speed driven gears, set gradually first clutch on described first countershaft, clutch sprocket, 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, described power take-off is a differential mechanism, the input gear of described differential mechanism and the engagement of described output driving gear.
In the said mechanism, after countershaft sprocket is positioned at clutch gear, so after second level chain-driven is positioned at first order gear transmission; Before countershaft sprocket can certainly being arranged on clutch gear, make second level chain-driven be positioned at first order gear transmission before, the position of clutch gear that is provided with on second countershaft and countershaft sprocket is adjusted accordingly and keeps other structures constant so.
Certainly countershaft sprocket and clutch gear also can be fixed on the first clutch, and clutch sprocket is fixed on the second clutch simultaneously, and keep other structures of speed changer constant.
For making installation more convenient, described countershaft sprocket and described clutch gear are an integral body.
Described input gear and described input shaft can be integral type, and be promptly as a whole.
The invention has the beneficial effects as follows:
(1) because described power input device is gear and chain tandem transmission device, concrete, described input shaft, described first countershaft and described second countershaft are parallel to each other, described power input device comprises the input gear that is fixed on the described input shaft, be fixed on described first or second clutch on clutch gear, be fixed on clutch sprocket and the countershaft sprocket that is fixed on the described countershaft on another clutch, described countershaft sprocket is positioned on the different countershafts and by chain with described clutch sprocket and connects, described input gear and clutch gear engagement, 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 described countershaft sprocket and described clutch gear are an integral body, 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, set gradually second clutch, clutch gear, countershaft sprocket, fourth gear driving gear, two fourth gear synchronizers and second gear driving gear on described second countershaft; Set gradually four or five grades of driven gears, two or three reverse gear driven gear and first speed driven gears on the described jack shaft; Set gradually first clutch on described first countershaft, clutch sprocket, 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, described power take-off is described jack shaft, engine power is directly exported from described jack shaft, 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 make that also the weight of speed changer is lighter, on the other hand, also can realize the preposition rear-guard of speed changer, improve transmission efficiency;
(4) another concrete mode can be that described countershaft sprocket is fixed on the described second clutch, set gradually second clutch on described second countershaft, clutch gear, countershaft sprocket, the output driven gear, the fourth gear driving gear, two fourth gear synchronizers and second gear driving gear, set gradually the output driving gear on the described jack shaft, four or five grades of driven gears, two or three reverse gear driven gear and first speed driven gears, set gradually first clutch on described first countershaft, clutch sprocket, 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, described power take-off is a differential mechanism, the input gear of described differential mechanism and the engagement of described output 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 make that also the weight of speed changer is lighter, on the other hand, also can realize the preposition forerunner of speed changer, improve transmission efficiency;
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;
Fig. 4 is the diagrammatic side views of Fig. 3;
Fig. 5 is the structural representation of the embodiment of the invention 3.
Among the figure, 1, the input gear; 2, second clutch; 3, clutch gear; 4, first clutch; 5, second countershaft; 6, first countershaft; 7, jack shaft; 8, one grade of driving gear; 9, second gear driving gear; 10, third speed drive gear; 11, fourth gear driving gear; 12, five grades of driving gears; 13, reverse driving gear; 14, reverse idler gear; 15, first speed driven gear; 16, two or three reverse gear driven gears; 17, four or five grades of driven gears; 18, synchronizer; 19, bearing; 20, chain; 21, clutch sprocket; 22, clutch gear; 23, input shaft; 24, output driving gear; 25, output driven gear; 26, differential mechanism; 27, five reverse gear synchronizers; 28, a third gear synchronizer.
Embodiment
Embodiment 1: as depicted in figs. 1 and 2, a kind of double-clutch automatic gearbox comprises input shaft 23; Jack shaft 7; Countershaft, described countershaft comprise first countershaft 6 and second countershaft 5; Be fixed on the first clutch 4 on described first countershaft 6; Be fixed on the second clutch 2 on described second countershaft 5; Power input device and power take-off, described input shaft 23, described first countershaft 6 and described second countershaft 5 are parallel to each other; Described power input device comprises the input gear 1 that is fixed on the described input shaft 23, be fixed on clutch gear 22 and countershaft sprocket 3 on the described second clutch, be fixed on the clutch sprocket 21 on the first clutch, and described countershaft sprocket 3 is an integral body with described clutch gear 22; Described countershaft sprocket 3 and described clutch sprocket 21 are connected described input gear 1 and clutch gear 22 engagements by chain; Described input gear 1 is an integral type with described input shaft 23; Set gradually second clutch 2, clutch gear 22, countershaft sprocket 3, fourth gear driving gear 11, two fourth gear synchronizers 18 and second gear driving gear 9 on described second countershaft 5; Set gradually four or five grades of driven gears, 17,23 reverse gear driven gears 16 and first speed driven gear 15 on the described jack shaft 7; Set gradually first clutch 4, clutch sprocket 21, five grades of driving gears 12, five reverse gear synchronizers 27, reverse driving gear 13, third speed drive gear 10, a third gear synchronizer 28 and one grade of driving gear 8 on described first countershaft 6; Described power take-off is described jack shaft 7, and engine power is directly exported from described jack shaft 7.
Embodiment 2: as shown in Figure 3 and Figure 4, different is for present embodiment and embodiment 1: set gradually second clutch 2, clutch gear 22, countershaft sprocket 3, output driven gear 25, fourth gear driving gear 11, two fourth gear synchronizers 18 and second gear driving gear 9 on described second countershaft 5; Set gradually output 24,45 grades of driven gear 17,23 reverse gear driven gears 16 of driving gear and first speed driven gear 15 on the described jack shaft 7; Set gradually first clutch 4, clutch sprocket 21, five grades of driving gears 12, five reverse gear synchronizers 27, reverse driving gear 13, third speed drive gear 10, a third gear synchronizer 28 and one grade of driving gear 8 on described first countershaft 6; Described power take-off is a differential mechanism 26, the input gear of described differential mechanism 26 and 24 engagements of described output driving gear.Other structures of present embodiment are identical with embodiment 1.
Embodiment 3: as shown in Figure 5, different is for present embodiment and embodiment 1: set gradually second clutch 2, countershaft sprocket 3, clutch gear 22, fourth gear driving gear 11, two fourth gear synchronizers 18 and second gear driving gear 9 on described second countershaft 5.Other structures of present embodiment are identical with embodiment 1.
As Fig. 1 or shown in Figure 3, power transmission line of the present invention is as follows:
One grade of transfer route:
Gearshift mechanism is stirred a third gear synchronizer 28 in advance and is put into first gear driving gear 8; Engine power is through being passed to input gear 1 behind the torsional vibration damper; Input gear 1 is passed to clutch gear 22 with the engine power engagement; Countershaft sprocket 3 is passed to clutch sprocket 21 by chain 20; First clutch 4 closures, transmission of power is given first countershaft 6; One grade of driving gear 8 engagement first speed driven gear 15 rotates; Jack shaft 7 rotates; Preposition rear-guard type can be directly by jack shaft 7 outputting powers, the output driving gear 24 that preposition forerunner's type needs jack shaft 7 to drive and is fixed in jack shaft rotates, output driving gear 24 engagement output driven gears 25, output driven gear 25 engagement differential mechanisms 26 outputting powers.
The second gear transfer route:
Gearshift mechanism is stirred two fourth gear synchronizers 18 in advance and is put into second gear driving gear 9, and engine power is through being passed to input gear 1 behind the torsional vibration damper; Input gear 1 engaging clutch gear 22 rotates; Second clutch 2 closures, transmission of power is given second countershaft 5; Second gear driving gear 9 engagement second gear driven gears 16 rotate; Jack shaft 7 rotates; Preposition rear-guard type can be directly by jack shaft 7 outputting powers, the output driving gear 24 that preposition forerunner's type needs jack shaft 7 to drive and is fixed in jack shaft rotates, output driving gear 24 engagement output driven gears 25, output driven gear 25 engagement differential mechanisms 26 outputting powers.
The third gear transfer route:
Gearshift mechanism is stirred one or three synchronizers 28 in advance and is put into third gear driving gear 10; Engine power is through being passed to input gear 1 behind the torsional vibration damper; Input gear 1 is passed to clutch gear 22 with the engine power engagement; Countershaft sprocket 3 is passed to clutch sprocket 21 by chain 20; First clutch 4 closures, transmission of power is given first countershaft 6; Third speed drive gear 10 engagement third gear driven gears 16 rotate; Jack shaft 7 rotates; Preposition rear-guard type can be directly by jack shaft 7 outputting powers, the output driving gear 24 that preposition forerunner's type needs jack shaft 7 to drive and is fixed in jack shaft rotates, output driving gear 24 engagement output driven gears 25, output driven gear 25 engagement differential mechanisms 26 outputting powers.
The fourth gear transfer route:
Gearshift mechanism is stirred two fourth gear synchronizers 18 in advance and is put into fourth gear driving gear 11, and engine power is through being passed to input gear 1 behind the torsional vibration damper; Input gear 1 engaging clutch gear 22 rotates; Second clutch 2 closures, transmission of power is given second countershaft 5; Fourth gear driving gear 11 engagement fourth gear driven gears 17 rotate; Jack shaft 7 rotates; Preposition rear-guard type can be directly by jack shaft 7 outputting powers, the output driving gear 24 that preposition forerunner's type needs jack shaft 7 to drive and is fixed in jack shaft rotates, output driving gear 24 engagement output driven gears 25, output driven gear 25 engagement differential mechanisms 26 outputting powers.
Five grades of transfer routes:
Gearshift mechanism is stirred five reverse gear synchronizers 27 in advance and is put into fifth gear driving gear 12; Engine power is through being passed to input gear 1 behind the torsional vibration damper; Input gear 1 is passed to clutch gear 22 with the engine power engagement; Countershaft sprocket 3 is passed to clutch sprocket 21 by chain 20; First clutch 4 closures, transmission of power is given first countershaft 6; Five grades of driven gears of five grades of driving gear 12 engagements 17 rotate; Jack shaft 7 rotates; Preposition rear-guard type can be directly by jack shaft 7 outputting powers, the output driving gear 24 that preposition forerunner's type needs jack shaft 7 to drive and is fixed in jack shaft rotates, output driving gear 24 engagement output driven gears 25, output driven gear 25 engagement differential mechanisms 26 outputting powers.
The reverse gear transfer route:
Gearshift mechanism is stirred five reverse gear synchronizers 27 in advance and is hung up reverse driving gear 13; Engine power is through being passed to input gear 1 behind the torsional vibration damper; Input gear 1 is passed to clutch gear 22 with the engine power engagement; Countershaft sprocket 3 is passed to clutch sprocket 21 by chain 20; First clutch 4 closures, transmission of power is given first countershaft 6; Reverse driving gear 13 engagement reverse idler gears 14 rotate; Reverse idler gear 14 engagement reverse gear driven gears 16 rotate; Jack shaft 7 rotates; Preposition rear-guard type can be directly by jack shaft 7 outputting powers, the output driving gear 24 that preposition forerunner's type needs jack shaft 7 to drive and is fixed in jack shaft rotates, output driving gear 24 engagement output driven gears 25, output driven gear 25 engagement differential mechanisms 26 outputting powers.
The present invention includes but be not limited to above embodiment,, all drop in protection scope of the present invention as long as the power input device of double-clutch automatic gearbox is gear and chain tandem transmission device.
Claims (7)
1, a kind of double-clutch automatic gearbox comprises input shaft (23); Jack shaft (7); Countershaft, described countershaft comprise first countershaft (6) and second countershaft (5); Be fixed on the first clutch (4) on described first countershaft (6); Be fixed on the second clutch (2) on described second countershaft (5); Power input device and power take-off is characterized in that: described power input device is gear and chain tandem transmission device.
2, double-clutch automatic gearbox as claimed in claim 1 is characterized in that: described input shaft (23), described first countershaft (6) and described second countershaft (5) are parallel to each other; Described power input device comprises the input gear (1) that is fixed on the described input shaft (23), be fixed on described first or second clutch on clutch gear (22), be fixed on the clutch sprocket (21) on another clutch and be fixed on countershaft sprocket (3) on the described countershaft; Described countershaft sprocket (3) is positioned on the different countershafts and by chain with described clutch sprocket (21) and connects, described input gear (1) and clutch gear (22) engagement.
3, double-clutch automatic gearbox as claimed in claim 2 is characterized in that: described countershaft sprocket (3) is an integral body with described clutch gear (22).
4, double-clutch automatic gearbox as claimed in claim 2 is characterized in that: described input gear (1) is an integral type with described input shaft (23).
5, as claim 2,3 or 4 described double-clutch automatic gearboxes, it is characterized in that: described countershaft sprocket (3) 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), clutch gear (22), countershaft sprocket (3), fourth gear driving gear (11), two fourth gear synchronizers (18) and second gear driving gear (9) on described second countershaft (5); Set gradually four or five grades of driven gears (17), two or three reverse gear driven gears (16) and first speed driven gear (15) on the described jack shaft (7); Set gradually first clutch (4), clutch sprocket (21), five grades of driving gears (12), five reverse gear synchronizers (27), reverse driving gear (13), third speed drive gear (10), a third gear synchronizer (28) and one grade of driving gear (8) on described first countershaft (6); Described power take-off is described jack shaft (7), and engine power is gone up directly output from described jack shaft (7).
7, double-clutch automatic gearbox as claimed in claim 5 is characterized in that: set gradually second clutch (2), clutch gear (22), countershaft sprocket (3), output driven gear (25), fourth gear driving gear (11), two fourth gear synchronizers (18) and second gear driving gear (9) on described second countershaft (5); Set gradually output driving gear (24), four or five grades of driven gears (17), two or three reverse gear driven gears (16) and first speed driven gear (15) on the described jack shaft (7); Set gradually first clutch (4), clutch sprocket (21), five grades of driving gears (12), five reverse gear synchronizers (27), reverse driving gear (13), third speed drive gear (10), a third gear synchronizer (28) and one grade of driving gear (8) on described first countershaft (6); Described power take-off is a differential mechanism (26), the input gear of described differential mechanism (26) and described output driving gear (24) engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910103054 CN101463892B (en) | 2009-01-13 | 2009-01-13 | Dual-clutch automatic speed transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910103054 CN101463892B (en) | 2009-01-13 | 2009-01-13 | Dual-clutch automatic speed transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101463892A true CN101463892A (en) | 2009-06-24 |
| CN101463892B CN101463892B (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910103054 Active CN101463892B (en) | 2009-01-13 | 2009-01-13 | Dual-clutch automatic speed transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101463892B (en) |
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2009
- 2009-01-13 CN CN 200910103054 patent/CN101463892B/en active Active
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| Publication number | Publication date |
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| CN101463892B (en) | 2011-06-29 |
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