CN203516613U - Dual-clutch automatic transmission - Google Patents
Dual-clutch automatic transmission Download PDFInfo
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- CN203516613U CN203516613U CN201320525935.2U CN201320525935U CN203516613U CN 203516613 U CN203516613 U CN 203516613U CN 201320525935 U CN201320525935 U CN 201320525935U CN 203516613 U CN203516613 U CN 203516613U
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Abstract
The utility model discloses a dual-clutch automatic transmission. The dual-clutch automatic transmission is provided with seven forward gears and a reverse gear. A seventh-gear driving gear, a first-gear driving gear and a third-gear driving gear are respectively, independently and fixedly arranged on a first input shaft, and a fourth-gear driving gear and a second-gear driving gear are respectively, independently and fixedly arranged on a second input shaft. The third-gear driving gear is used as a fifth-gear driving gear at the same time, the fourth-gear driving gear is used as a sixth-gear driving gear at the same time, and therefore the axial length of the transmission is shortened, the whole structure of the transmission becomes smaller, and the transmission can be light. The second-gear driving gear is used as a reverse-gear driving gear at the same time, a second-gear driven gear is used as a reverse-gear central gear, a reverse gear shaft is omitted, the radial size of the interior of the transmission is effectively reduced, assembly is simpler, and the transmission can be light.
Description
Technical field
The utility model relates to automotive transmission field, particularly relates to a kind of double-clutch automatic gearbox.
Background technique
Along with the development of automotive industry, automatic transmission has become development trend.Drive line, as the main body of double-clutch automatic gearbox, is the most important condition of follow-up hardware and software design, so double-clutch speed changer is particularly important to the layout design of transmission scheme.During drive line design, need to make its compact structure, the in the situation that of proof strength, reduce the axial and radial space of drive line, to adapt to the light-weighted requirement of speed changer as far as possible.But driving gear is all independent setting in the speed changer of current most of vehicle, conventionally can make the axial length of speed changer long, finally cause car load inner space larger, be unfavorable for the light-weighted enforcement of speed changer.And, during existing double-clutch automatic gearbox drive line is arranged, because reverse gear, be 3 grades of transmissions, reverse gear driven gear or reverse idler gear need be arranged on independent reverse gear shaft, and reverse idler gear is mostly duplicate gear, or be rigidly connected two gears, the power of reverse gear engine is by the driving gear process reverse idler gear that reverses gear on input shaft, be passed to again the driven gear that reverses gear, can not make full use of like this characteristic of double output shaft in speed changer, increase the radial space of speed changer, be unfavorable for the light-weighted enforcement of speed changer.Have, existing speed changer also exists gear to arrange irrational problem again, causes speed changer to move inadequate safety and stability.
Model utility content
An object of the present utility model is to reduce speed changer axial length.Another object of the present utility model is to reduce above-mentioned speed changer radial length and inner body quantity, to optimize assembly process.Another object of the present utility model is to make above-mentioned speed changer operation safer stable.
To achieve these goals, the utility model provides a kind of double-clutch automatic gearbox, comprising:
The first input shaft, it has the first input shaft first end and the first input shaft the second end contrary with described the first input shaft first end;
First clutch, it is connected to described the first input shaft at described the first input shaft first end place;
The second input shaft, it has the second input shaft first end and the second input shaft the second end contrary with described the second input shaft first end; Wherein, described the second input shaft is hollow shaft, and it is sleeved on described the first input shaft;
Second clutch, it is connected to described the second input shaft at described the second input shaft first end place;
The independent seven gear driving gears that arrange, a gear driving gear and three gear driving gears, it is fixedly attached to respectively described the first input shaft; Wherein, described three gear driving gears are simultaneously as five gear driving gears;
The independent four gear driving gears that arrange and two gear driving gears, it is fixedly attached to respectively described the second input shaft; Wherein, described four gear driving gears are simultaneously as six gear driving gears; Described two gear driving gears are simultaneously as reversing gear driving gear, to omit reverse gear shaft;
The first output shaft and the second output shaft, on it, empty set is provided with the driven gear of engagement corresponding to each driving gear respectively;
Described the first output shaft is connected with differential mechanism respectively with described the second output shaft, and described differential mechanism has semiaxis, and described semiaxis is provided with parking ratchet wheel.
Alternatively, described seven gear driving gears, a gear driving gear and three gear driving gears set gradually along the direction from described the first input shaft the second end to described the first input shaft first end on described the first input shaft.
Alternatively, described four gear driving gears and described two gear driving gears set gradually along the direction from described the second input shaft the second end to described the second input shaft first end on described the second input shaft.
Alternatively, the position corresponding with a described gear driving gear, three gear driving gears, four gear driving gears and two gear driving gears on described the first output shaft is separately installed with a gear driven gear, three gear driven gears, four gear driven gear and the driven gears that reverse gear.
Alternatively, on described the first output shaft between a described gear driven gear and three gear driven gears, be fixed with one or three gear synchronizers; On described four gear driven gears and described the first output shaft of reversing gear between driven gear, be fixed with four reverse gear synchronizers.
Alternatively, the position corresponding with described seven gear driving gears, three gear driving gears, four gear driving gears and two gear driving gears on described the second output shaft is separately installed with seven gear driven gears, five gear driven gears, six gear driven gears and two gear driven gears.
Alternatively, on described the second output shaft between described six gear driven gears and two gear driven gears, be fixed with two or six gear synchronizers; On described the second output shaft between described seven gear driven gears and five gear driven gears, be fixed with five or seven gear synchronizers.
Alternatively, described the first output shaft and described the second output shaft mesh by the first output gear of end and the deceleration driven gear of the second output gear and described differential mechanism respectively.
At least there is following useful technique effect in the utility model:
1), in double-clutch automatic gearbox of the present utility model, between three gears and five gears, share driving gear, between four gears and six gears, share driving gear, two gears and reverse gear between share driving gear, shortened the axial length of speed changer, speed changer overall structure is diminished, be conducive to the light-weighted realization of speed changer;
2), in double-clutch automatic gearbox of the present utility model using two gear driving gears as the driving gear that reverses gear, two gear driven gears are used as reverse idler gear simultaneously, by two gear driving gears, two gear driven gears and the driven gear that reverses gear, form a triple gear, realize gear reversing function; Such structure can reduce the use of a reverse gear shaft and related components, has effectively reduced the radial dimension in speed changer, makes assembling simpler, is also conducive to the light-weighted realization of speed changer;
3), in double-clutch automatic gearbox of the present utility model, the seven gear gear trains as top gear are arranged on to the first input shaft outermost end, can slow down the impact on the first input shaft of the centrifugal force that produces due to High Rotation Speed, extend working life, further made speed changer running safer stable.
Accompanying drawing explanation
Fig. 1 is structural configuration schematic diagram in the utility model speed changer;
Wherein:
1-the first input shaft, 2-the second input shaft, 3-the first output shaft, 4-the second output shaft, 5-mono-or three gear synchronizers, 6-tetra-reverse gear synchronizers, 7-bis-or six gear synchronizers, 8-five or seven gear synchronizers, 9-deceleration driven gear, 10-parking ratchet wheel, K1 is first clutch, K2 is second clutch
17-seven gear driving gears, 11-mono-gear driving gear, 13-tri-gear driving gears, 24-tetra-gear driving gears, 22-bis-gear driving gears,
31-mono-gear driven gear, 33-tri-gear driven gears, 34-tetra-gear driven gears, the 35-driven gear that reverses gear, 38-the first output gear,
47-seven gear driven gears, 45-five gear driven gears, 46-six gear driven gears, 42-bis-gear driven gears, 48-the second output gear.
Embodiment
For making the utility model embodiment's object, technological scheme and advantage clearer, below in conjunction with accompanying drawing, specific embodiment is described in detail.
As shown in Figure 1, the utility model embodiment provides a kind of double-clutch automatic gearbox, and speed changer can comprise housing (not shown), and housing seals the gear apparatus of speed changer at least in part.This gear apparatus can comprise various axles, intermeshing co-planar gear set, double clutch assembly and the synchronizer can selectivity engaging, as described herein.
Axle of the present utility model can comprise the first input shaft 1 and second input shaft 2 of coaxial setting.
The first input shaft 1 can have the first input shaft first end and the first input shaft the second end contrary with described the first input shaft first end.The second input shaft 2 can have the second input shaft first end and the second input shaft the second end contrary with described the second input shaft first end.The two ends of the first input shaft 1 and the second input shaft 2 are normally arranged on case of transmission by bearing.
The second input shaft 2 is hollow shaft, and it is sleeved on the first input shaft 1, makes can rotate relatively freely between the first input shaft 1 and the second input shaft 2.
Double clutch assembly of the present utility model can comprise first clutch K1 and the second clutch K2 of nested, concentric.First clutch K1 is connected to the first input shaft 1 at the first input shaft first end place, to jointly rotate with the first input shaft 1.Second clutch K2 is connected to the second input shaft 2 at the second input shaft first end place, can jointly rotate with the second input shaft 2 equally.
Axle of the present utility model can also comprise the first output shaft 3 and the second output shaft 4 parallel and that separation arranges.
Intermeshing co-planar gear set of the present utility model can comprise seven groups of forward gear gear trains and a reverse gear group, is to be separately positioned on above-mentioned the first input shaft 1, the second input shaft 2, the first output shaft 3 and the second output shaft 4.
Particularly, on the first input shaft 1, along the direction from the first input shaft the second end to the first input shaft first end, be fixedly installed successively seven gear driving gears 17, a gear driving gear 11 and three gear driving gears 13, wherein three gear driving gears 13 are simultaneously as five gear driving gears.And along the direction from the second input shaft the second end to the second input shaft first end, be fixedly installed successively four gear driving gears 24 and two gear driving gears 22 on the second input shaft 2, wherein four gear driving gears 24 are simultaneously as six gear driving gears, and two gear driving gears 22 are simultaneously as reversing gear driving gear.
Meanwhile, the position corresponding with a gear driving gear 11, three gear driving gears 13, four gear driving gears 24 and two gear driving gears 22 on the first output shaft 3 is separately installed with a gear driven gear 31, three gear driven gears 33, four gear driven gear 34 and the driven gears 35 that reverse gear.The position corresponding with described seven gear driving gears 17, three gear driving gears 13, four gear driving gears 24 and two gear driving gears 22 on described the second output shaft 4 is separately installed with seven gear driven gears 47, five gear driven gears 45, six gear driven gears 46 and two gear driven gears 42.Therefore can find out, in speed changer of the present utility model, between three gears and five gears, share driving gear, between four gears and six gears, share driving gear, two gears and reverse gear between share driving gear, shortened the axial length of speed changer, speed changer overall structure is diminished, be conducive to the light-weighted realization of speed changer.
It in the utility model, between each corresponding driving gear and driven gear, is normal engagement.Particularly, wherein seven gear driving gears 17 and seven gear driven gears 47 are normal engagement, form seven gear gear trains; One gear driving gear 11 and a gear driven gear 31 are normal engagement, form first gear group; Three gear driving gears 13 and five gear driven gears 45 are normal engagement, form five gear gear trains; Three gear driving gears 13 and three gear driven gears 33 are normal engagement, form three gear gear trains; Four gear driving gears 24 and four gear driven gears 34 are normal engagement, form four gear gear trains; Four gear driving gears 24 and six gear driven gears 46 are normal engagement, form six gear gear trains; Two gear driving gears 22 and two gear driven gears 42 are normal engagement, form second gear group.In addition, two gear driven gears 42 mesh for normal with the driven gear 35 that reverses gear, in this example, by two gear driven gears 42 are used as reverse idler gear, by two gear driving gears 22, two gear driven gears 42 and the driven gear 35 that reverses gear, form a triple gear, realize gear reversing function; Such structure can reduce the use of a reverse gear shaft and related components, wherein related components at least comprises bearing and the fixing bolt at reverse gear shaft two ends, can effectively reduce like this radial dimension in speed changer, make assembling simpler, also be conducive to light-weighted realization.
It should be noted that, in the utility model, be no matter gear order of placement on the first input shaft 1 or the second input shaft 2 not necessarily according to shown in Fig. 1, be from left to right followed successively by seven gears, a gear, five gears, three gears, four gears, six gears, two gear/R and keep off.Also can be that modes such as three gears, five gears, a gear, seven gears, four gears, six gears, two gear/R gears is arranged, be equally in the utility model protection domain.But, consider in top gear gear rotary course particularly and can produce very large centrifugal force, if now top gear gear is arranged on the first inclined to one side intermediate portion of input shaft 1, the phenomenon such as may more easily cause the first input shaft 1 bending or fracture; So be according to the arrangement in Fig. 1 in this example, the outermost end of the first input shaft 1 and the second output shaft 4 will be arranged on as seven gear gear trains of top gear, near bearing is installed, can extend like this working life of the first input shaft 1 and the second output shaft 4, further make speed changer running safer stable.
Synchronizer of the present utility model can comprise four, is separately positioned between the driven gear of adjacent two gears.Particularly, on the first output shaft 3 between a gear driven gear 31 and three gear driven gears 33, be fixed with one or three gear synchronizers 5, optionally the first gear moment of torsion and the 3rd gear moment of torsion passed to the first output shaft 3.On four gear driven gears 34 and the first output shaft 3 of reversing gear between driven gear 35, be fixed with four reverse gear synchronizers 6, optionally the 4th gear moment of torsion and the moment of torsion that reverses gear passed to the first output shaft 3.On the second output shaft 4 between six gear driven gears 46 and two gear driven gears 42, be fixed with two or six gear synchronizers 7, optionally the 6th gear moment of torsion and the second gear moment of torsion passed to the second output shaft 4.On the second output shaft 4 between seven gear driven gears 47 and five gear driven gears 45, be fixed with five or seven gear synchronizers 8, optionally the 7th gear moment of torsion and the 5th gear moment of torsion passed to the second output shaft 4.
Finally, the first output shaft 3 ends of the present utility model can also be fixedly connected with the first output gear 38, are used for exporting the moment of torsion of described the first output shaft 3.Equally, in the second output shaft 4 ends, also can be fixedly connected with the second output gear 48, be used for exporting the moment of torsion of described the second output shaft 4.Then the first output gear 38 and the second output gear 48 mesh with the deceleration driven gear 9 of differential mechanism simultaneously, thereby transfer a torque to differential mechanism.In addition, be provided with parking ratchet wheel 10 on the semiaxis of differential mechanism, certainly, parking ratchet wheel 10 is herein the parts as whole parking ratchet wheel mechanism, as for repeating no more in the concrete composition of parking ratchet wheel mechanism and this example of specific works mode.
Seven forward gears of the present utility model and a power transmission line reversing gear are as follows:
During one gear, first clutch K1 is closed, and the moment of torsion of motor is passed to the first input shaft 1 by first clutch K1; A gear driving gear 11 on the first input shaft 1 is passed to a gear driven gear 31; One gear driven gear 31 engages with one or three gear synchronizers 5, transfers a torque to the first output shaft 3, then the deceleration driven gear 9 that is passed to differential mechanism through the first output gear 38 also finally transmission go out.
When vehicle enters a gear, second clutch K2 is in off state, transferring power not, when vehicle accelerates to the shifting points of two gears, automatic gearshift can change to two gears in advance by gear, is about to two or six gear synchronizers 7 and engages with two gear driven gears 42, then first clutch K1 disconnects, second clutch K2 is closed, and shift process finishes, and vehicle enters two gears.
During two gears, second clutch K2 is closed, and the moment of torsion of motor is passed to the second input shaft 2 by second clutch K2; Two gear driving gears 22 on the second input shaft 2 are passed to two gear driven gears 42; Two gear driven gears 42 engage with two or six gear synchronizers 7, transfer a torque to the second output shaft 4, then the deceleration driven gear 9 that is passed to differential mechanism through the second output gear 48 also finally transmission go out.
When vehicle enters two gears, the electrical control unit of automatic transmission in general vehicle can judge according to relevant sensor signals the state of the current operation of vehicle, so judgement vehicle be about to hang into gear, as vehicle accelerates, next gear is three gears, and as vehicle deceleration, next gear is a gear.And a gear and three gears are by first clutch K1 control, because first clutch K1 is now in off state, transferring power not, therefore can change in advance the gear that is about to carry out work by automatic gearshift.When vehicle reaches shifting points, only the second clutch K2 working need to be disconnected, first clutch K1 is closed simultaneously, the transfer sequence of two clutches of working good, whole shift process completes.The handoff procedure of other forward gears is also so, no longer repeats below.
During three gears, first clutch K1 is closed, and the moment of torsion of motor is passed to the first input shaft 1 by first clutch K1; Three gear driving gears 13 on the first input shaft 1 are passed to three gear driven gears 33; Three gear driven gears 33 engage with one or three gear synchronizers 5, transfer a torque to the first output shaft 3, then through the first output gear 38 be passed to deceleration driven gear 9 also finally transmission go out.
During four gears, second clutch K2 is closed, and the moment of torsion of motor is passed to the second input shaft 2 by second clutch K2; Four gear driving gears 24 on the second input shaft 2 are passed to four gear driven gears 34; Four gear driven gears 34 engage with four reverse gear synchronizers 6, transfer a torque to the first output shaft 3, then through the first output gear 38 be passed to deceleration driven gear 9 also finally transmission go out.
During five gears, first clutch K1 is closed, and the moment of torsion of motor is passed to the first input shaft 1 by first clutch K1; Three gear driving gears 13 on the first input shaft 1 are passed to five gear driven gears 45; Five gear driven gears 45 engage with five or seven gear synchronizers 8, transfer a torque to the second output shaft 4, then through the second output gear 48 be passed to deceleration driven gear 9 also finally transmission go out.
During six gears, second clutch K2 is closed, and the moment of torsion of motor is passed to the second input shaft 2 by second clutch K2; Four gear driving gears 24 on the second input shaft 2 are passed to six gear driven gears 46; Six gear driven gears 46 engage with two or six gear synchronizers 7, transfer a torque to the second output shaft 4, then through the second output gear 48 be passed to deceleration driven gear 9 also finally transmission go out.
During seven gears, first clutch K1 is closed, and the moment of torsion of motor is passed to the first input shaft 1 by first clutch K1; Seven gear driving gears 17 on the first input shaft 1 are passed to seven gear driven gears 47; Seven gear driven gears 47 engage with five or seven gear synchronizers 8, transfer a torque to the second output shaft 4, then through the second output gear 48 be passed to deceleration driven gear 9 also finally transmission go out.
While reversing gear, second clutch K2 is closed, and the moment of torsion of motor is passed to the second input shaft 2 by second clutch K2; Then two gear driving gears 22 on the second input shaft 2 are passed to two gear driven gears 42; By two gear driven gears 42, drive to the driven gear 35 that reverses gear again, the driven gear 35 that reverses gear engages with four reverse gear synchronizers 6, transfers a torque to the first output shaft 3, then is passed to deceleration driven gear 9 and final transmission is gone out through the first output gear 38.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. a double-clutch automatic gearbox, is characterized in that, comprising:
The first input shaft (1), it has the first input shaft first end and the first input shaft the second end contrary with described the first input shaft first end;
First clutch, it is connected to described the first input shaft (1) at described the first input shaft first end place;
The second input shaft (2), it has the second input shaft first end and the second input shaft the second end contrary with described the second input shaft first end; Wherein, described the second input shaft (2) is hollow shaft, and it is sleeved on described the first input shaft (1);
Second clutch, it is connected to described the second input shaft (2) at described the second input shaft first end place;
The independent seven gear driving gears (17) that arrange, a gear driving gear (11) and three gear driving gears (13), it is fixedly attached to respectively described the first input shaft (1); Wherein, described three gear driving gears (13) are simultaneously as five gear driving gears;
The independent four gear driving gears (24) that arrange and two gear driving gears (22), it is fixedly attached to respectively described the second input shaft (2); Wherein, described four gear driving gears (24) are simultaneously as six gear driving gears (26); Described two gear driving gears (22) are simultaneously as reversing gear driving gear, to omit reverse gear shaft;
The first output shaft (3) and the second output shaft (4), on it, empty set is provided with the driven gear of engagement corresponding to each driving gear respectively;
Described the first output shaft (3) is connected with differential mechanism respectively with described the second output shaft (4), and described differential mechanism has semiaxis, and described semiaxis is provided with parking ratchet wheel (10).
2. double-clutch automatic gearbox according to claim 1, it is characterized in that, described seven gear driving gears (17), a gear driving gear (11) and three gear driving gears (13) above set gradually along the direction from described the first input shaft the second end to described the first input shaft first end at described the first input shaft (1).
3. double-clutch automatic gearbox according to claim 1 and 2, it is characterized in that, described four gear driving gears (24) and described two gear driving gears (22) above set gradually along the direction from described the second input shaft the second end to described the second input shaft first end at described the second input shaft (2).
4. double-clutch automatic gearbox according to claim 1, it is characterized in that, the position corresponding with a described gear driving gear (11), three gear driving gears (15), four gear driving gears (24) and two gear driving gears (22) on described the first output shaft (3) is separately installed with a gear driven gear (31), three gear driven gears (33), four gear driven gear (34) and the driven gears that reverse gear (35).
5. double-clutch automatic gearbox according to claim 4, is characterized in that, is fixed with one or three gear synchronizers (5) on described the first output shaft (3) between a described gear driven gear (31) and three gear driven gears (33); On described the first output shaft (3) between described four gear driven gears (34) and the driven gear that reverses gear (35), be fixed with four reverse gear synchronizers (6).
6. double-clutch automatic gearbox according to claim 1, it is characterized in that, the position corresponding with described seven gear driving gears (17), three gear driving gears (13), four gear driving gears (24) and two gear driving gears (22) on described the second output shaft (4) is separately installed with seven gear driven gears (47), five gear driven gears (45), six gear driven gears (46) and two gear driven gears (42).
7. double-clutch automatic gearbox according to claim 6, is characterized in that, is fixed with two or six gear synchronizers (7) on described the second output shaft (4) between described six gear driven gears (46) and two gear driven gears (42); On described the second output shaft (4) between described seven gear driven gears (47) and five gear driven gears (45), be fixed with five or seven gear synchronizers (8).
8. double-clutch automatic gearbox according to claim 1, it is characterized in that, described the first output shaft (3) and described the second output shaft (4) mesh with the deceleration driven gear (9) of described differential mechanism by the first output gear (38) and second output gear (48) of end respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320525935.2U CN203516613U (en) | 2013-08-27 | 2013-08-27 | Dual-clutch automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320525935.2U CN203516613U (en) | 2013-08-27 | 2013-08-27 | Dual-clutch automatic transmission |
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| Publication Number | Publication Date |
|---|---|
| CN203516613U true CN203516613U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320525935.2U Expired - Lifetime CN203516613U (en) | 2013-08-27 | 2013-08-27 | Dual-clutch automatic transmission |
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| Country | Link |
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| CN (1) | CN203516613U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370815A (en) * | 2014-08-29 | 2016-03-02 | 广州汽车集团股份有限公司 | Multi-gear double-clutch transmission and vehicle |
| CN113446366A (en) * | 2020-03-26 | 2021-09-28 | 广州汽车集团股份有限公司 | Rear driving force assembly device and vehicle |
-
2013
- 2013-08-27 CN CN201320525935.2U patent/CN203516613U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370815A (en) * | 2014-08-29 | 2016-03-02 | 广州汽车集团股份有限公司 | Multi-gear double-clutch transmission and vehicle |
| CN113446366A (en) * | 2020-03-26 | 2021-09-28 | 广州汽车集团股份有限公司 | Rear driving force assembly device and vehicle |
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Granted publication date: 20140402 |
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