CN204267620U - Many gears double-clutch speed changer and vehicle - Google Patents

Abstract

The utility model provides a multi-gear dual-clutch transmission and a vehicle. The multi-gear dual-clutch transmission includes coaxially nested outer input shafts and inner input shafts, and a plurality of driving gears are fixedly arranged on the outer input shafts and the inner input shafts; The first outer output shaft and the first inner output shaft are coaxially nested, and at least one driven gear meshing with the corresponding driving gear is vacantly sleeved on the first outer output shaft and the first inner output shaft; Two outer output shafts and the second inner output shaft, at least one driven gear meshed with the corresponding driving gear is sleeved on the second outer output shaft and the second inner output shaft; the synchronization device is used to control all the driven gears and the second inner output shaft. The coupling and disengagement of the shafts, the coupling and disengagement of the first outer output shaft and the first inner output shaft, and the coupling and disengagement of the second outer output shaft and the second inner output shaft. The multi-speed dual-clutch transmission improves the transmission efficiency of the transmission and reduces the reaction time for shifting gears.

Description

Multi-speed dual-clutch transmission and vehicle

technical field

The utility model belongs to the technical field of vehicle transmissions, in particular to a multi-block dual-clutch transmission and a vehicle.

Background technique

The dual-clutch automatic transmission integrates two gearboxes and two clutches in one transmission housing, and two inner and outer input shafts that are rotatably nested together are respectively connected with one of the clutches, and the two input shafts transmit two transmissions respectively. The power of each gearbox speed group completes the shift program by automatically switching between the two clutches, so the continuity of power during the shift process can be realized, that is, the power is not interrupted during the shift process, which overcomes the AMT shift Disadvantages of impact: During the shifting process of the vehicle, the power of the engine can always be transmitted to the wheels, and the shifting is fast and smooth, which not only ensures the acceleration of the vehicle, but also reduces the sharp deceleration caused by the shifting of the vehicle. Greatly improved the comfort of vehicle operation. However, since the conventional dual-clutch automatic transmission mostly adopts dual output shafts or single output shafts and adopts a shared driving gear or a linearly arranged gear set, its axial dimension is relatively long, so for front transverse engines, front-wheel drives, etc. For small vehicles, especially small cars, due to the limited installation space, the above-mentioned transmission is more difficult to adopt, and because of its fewer shifting gears, it is difficult for the engine to work in the optimal working area, thus affecting the power of the vehicle. and economical adverse effects.

The Chinese patent application with the publication number CN103711845A discloses a multi-speed dual-clutch transmission, which includes: an outer input shaft and an inner input shaft nested together, the inner input shaft is connected to a power source through a first clutch, and the The outer input shaft is connected to the power source through the second clutch, and the outer input shaft and the inner input shaft are each provided with at least one driving gear; the first outer output shaft and the first inner output shaft nested together and nested together The second outer output shaft and the second inner output shaft, the first inner output shaft is provided with a first output gear meshed with the differential gear, and the second inner output shaft is provided with a first output gear meshed with the differential gear The second output gear, the first outer output shaft, the first inner output shaft, the second outer output shaft and the second inner output shaft are all provided with at least one driven gear correspondingly meshed with the driving gear; the switching element, The switching element can control the engagement between different driving gears and between different driven gears, so that the transmission can output multiple speed ratios of different gears. The engagement between different driving gears and between different driven gears is controlled by switching elements, so that up to seventeen forward gears and one reverse gear can be realized.

However, in CN103711845A, since the first output gear and the second output gear are respectively connected on the first inner output shaft and the second inner output shaft, the switching element only controls the output between different driving gears and different driven gears. Therefore, after the driven gear of a certain gear on the first outer output shaft and the second outer output shaft is engaged with the driving gear of the corresponding gear on the inner input shaft or the outer input shaft, the first outer output The rotation of the shaft and the second outer output shaft cannot be directly transmitted to the first output gear on the first inner output shaft and the second output gear on the second inner output shaft. In this way, in some gears, the power transmission path from the power source (engine or motor) to the first output gear or the second output gear is too long, which reduces the transmission efficiency of the transmission, and the excessively long power transmission If the path is too long, it will also increase the reaction time of shifting gears and affect the comfort of vehicle operation.

Utility model content

The technical problem to be solved by the utility model is to provide a multi-speed dual-clutch transmission for the low transmission efficiency defect of the existing multi-speed dual-clutch transmission.

The technical solution adopted by the utility model to solve the problems of the technologies described above is as follows:

A multi-speed dual-clutch transmission is provided, including:

The outer input shaft and the inner input shaft are coaxially nested together, the outer input shaft is connected to the power source through the first clutch, the inner input shaft is connected to the power source through the second clutch, the outer input shaft and the inner Multiple driving gears are fixedly arranged on the input shaft;

The first outer output shaft and the first inner output shaft are coaxially nested together, and the first final reduction gear meshing with the ring gear of the differential is fixedly arranged on the first inner output shaft. At least one driven gear meshing with the corresponding driving gear is sheathed on the output shaft and the first inner output shaft;

The second outer output shaft and the second inner output shaft are coaxially nested together, and the second final reduction gear meshing with the ring gear of the differential is fixedly arranged on the second inner output shaft. At least one driven gear meshing with the corresponding driving gear is sheathed on the output shaft and the second inner output shaft;

a synchronizing device, the synchronizing device is used to control the combination and disengagement of all driven gears with their shafts, the combination and disengagement of the first outer output shaft and the first inner output shaft, and the second outer output shaft and Engagement and disengagement of the second inner output shaft.

Further, the first outer output shaft is also free-sleeved with a reverse drive gear, and the reverse drive gear meshes with one of the drive gears on the outer input shaft or the inner input shaft.

Further, the driving gear of the outer input shaft includes a seventh-speed driving gear and a third-speed driving gear arranged in sequence in a direction away from the power source, and the driving gear of the inner input shaft includes a driving gear in a direction away from the power source. The fourth-speed driving gear, the sixth-speed driving gear and the second-speed driving gear arranged in sequence; the idle gear on the first outer output shaft includes the sixth-speed driving gear and the second-speed driving gear respectively meshing with the sixth-speed driving gear. A driven gear and a second gear driven gear; the idle gear on the second outer output shaft includes a third gear driven gear and a fourth gear driven gear meshing with the third gear driving gear and the fourth gear driving gear respectively; The idle driven gear on the second inner output shaft includes a seventh-speed driven gear meshed with the seventh-speed driving gear.

Further, the synchronization device includes:

a first synchronizer connected to the first inner output shaft, the first synchronizer is used to control the combination and disengagement of the first outer output shaft and the first inner output shaft;

a second synchronizer connected to the first outer output shaft and located between the reverse driving gear and the sixth-speed driven gear, the second synchronizer is used to control the sixth-speed driven gear and the sixth-speed driven gear the coupling and disengagement of the first external output shaft and the reverse driving gear with the first external output shaft;

a third synchronizer connected to the first outer output shaft and located between the sixth-speed driven gear and the second-speed driven gear, the third synchronizer is used to control the sixth-speed driven gear and the combination and separation of the second gear driven gear and the first outer output shaft;

a fourth synchronizer connected to the second inner output shaft, the fourth synchronizer is used to control the combination and disengagement of the second outer output shaft and the second inner output shaft;

a fifth synchronizer connected to the second outer output shaft and located between the fourth synchronizer and the fourth-speed driven gear, the fifth synchronizer is used to control the fourth-speed driven gear and coupling and disengagement of said second outer output shaft;

A sixth synchronizer connected to the second outer output shaft and located between the third-speed driven gear and the seventh-speed driven gear, the sixth synchronizer is used to control the third-speed driven gear and the seventh-speed driven gear Combination and separation of the second outer output shaft and the seventh-speed driven gear with the second inner output shaft.

Further, the fourth synchronizer is arranged at an end of the second inner output shaft away from the power source.

Further, the driving gear of the outer input shaft includes a seventh-speed driving gear and a third-speed driving gear arranged in sequence in a direction away from the power source, the seventh-speed driving gear is also used as a ninth-speed driving gear, and the inner The driving gear of the input shaft includes four-speed driving gear, sixth-speed driving gear, eight-speed driving gear and second-speed driving gear arranged in sequence in the direction away from the power source; the driven gear of the empty sleeve on the first inner output shaft It includes a ninth-speed driven gear that meshes with the seventh-speed driving gear; the idler gear on the first outer output shaft includes a sixth-speed driven gear that meshes with the sixth-speed driving gear and the second-speed driving gear respectively and the second gear driven gear; the idle gear on the second outer output shaft includes a third gear driven gear, a fourth gear driven gear, and a fourth gear driven gear meshing with the third gear driving gear, the fourth gear driving gear and the eighth gear driving gear respectively. Driven gear and eighth-gear driven gear; the idler gear on the second inner output shaft includes a seventh-gear driven gear meshed with the seventh-gear driving gear.

Further, the synchronization device includes:

A first synchronizer connected to the first inner output shaft, the first synchronizer is used to control the first outer output shaft and the first inner output shaft and the ninth gear driven gear and the first inner output shaft the combination and separation of

a second synchronizer connected to the first outer output shaft and located between the reverse driving gear and the sixth-speed driven gear, the second synchronizer is used to control the sixth-speed driven gear and the sixth-speed driven gear the coupling and disengagement of the first external output shaft and the reverse driving gear with the first external output shaft;

a third synchronizer connected to the first outer output shaft and located between the sixth-speed driven gear and the second-speed driven gear, the third synchronizer is used to control the sixth-speed driven gear and the combination and separation of the second gear driven gear and the first outer output shaft;

a fourth synchronizer connected to the second inner output shaft, the fourth synchronizer is used to control the combination and disengagement of the second outer output shaft and the second inner output shaft;

a fifth synchronizer connected to the second outer output shaft and located between the eighth-speed driven gear and the fourth-speed driven gear, the fifth synchronizer is used to control the eighth-speed driven gear and the combination and separation of the fourth gear driven gear and the second external output shaft;

A sixth synchronizer connected to the second outer output shaft and located between the third-speed driven gear and the seventh-speed driven gear, the sixth synchronizer is used to control the third-speed driven gear and the seventh-speed driven gear Combination and separation of the second outer output shaft and the seventh-speed driven gear with the second inner output shaft.

Further, the fourth synchronizer is arranged at an end of the second inner output shaft away from the power source.

Further, the reverse driving gear meshes with the third gear.

According to the multi-speed dual-clutch transmission of the present invention, in addition to controlling the combination and separation of all driven gears and their shafts, the synchronization device can also control the first outer output shaft and the first inner output shaft. The combination and separation of shafts and the combination and separation of the second outer output shaft and the second inner output shaft, so that the driven gears of the corresponding gears on the first outer output shaft and the second outer output shaft and the inner input shaft or After the driving gear of the corresponding gear on the outer input shaft is engaged, the synchronous device controls the combination of the first outer output shaft and the first inner output shaft or the second outer output shaft and the second inner output shaft, so that the power can be directly transmitted to The first final reduction gear on the first internal output shaft or the second final reduction gear on the second internal output shaft does not need to rely on driven gears and driving gears of other gears, thus shortening the time required by the power source (engine) or motor) to the first main reduction gear or the second main reduction gear, which improves the transmission efficiency of the transmission, reduces the reaction time of gear shifting, and improves the comfort of vehicle operation.

In addition, the utility model also provides a vehicle, which includes the above-mentioned multi-speed dual-clutch transmission.

Description of drawings

Fig. 1 is a frame diagram of a multi-block dual-clutch transmission provided by an embodiment of the utility model;

Fig. 2 is a frame diagram of a multi-speed dual-clutch transmission provided by another embodiment of the present invention.

The reference signs in the accompanying drawings of the description are as follows:

1. The first inner output shaft; 2. The first main reduction gear; 3. The ninth gear driven gear; 4. The first synchronizer; 5. The reverse gear driving gear; 6. The second synchronizer; 7. The sixth gear slave 8, the third synchronizer; 9, the second gear driven gear; 10, the first outer output shaft; 11, the fourth gear driving gear; 12, the sixth gear driving gear; 13, the second gear driving gear; 14, the inner Input shaft; 15, eighth gear driving gear; 16, fourth synchronizer; 17, second inner output shaft; 18, second outer output shaft; 19, eighth gear driven gear; 20, fifth synchronizer; 21, Fourth gear driven gear; 22, third gear driven gear; 23, differential; 24, ring gear; 25, sixth synchronizer; 26, second final reduction gear; 27, seventh gear driven gear; 28, External input shaft; 29, power source; 30, second clutch; 31, first clutch; 32, seven-speed driving gear; 33, third-speed driving gear.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figure 1, the multi-block dual-clutch transmission provided by an embodiment of the utility model includes:

The outer input shaft 28 and the inner input shaft 14 are coaxially nested together, the outer input shaft 28 is connected to the power source 29 through the first clutch 31, and the inner input shaft 14 is connected to the power source 29 through the second clutch 30 , the outer input shaft 28 and the inner input shaft 14 are fixedly provided with a plurality of driving gears; the power source 29 can be, for example, an engine or a motor. The first clutch 31 and the second clutch 30 constitute a double clutch.

The first outer output shaft 10 and the first inner output shaft 1 coaxially nested together, and the first final reduction gear 2 meshing with the ring gear 24 of the differential 23 is fixedly arranged on the first inner output shaft 1 , the first outer output shaft 10 and the first inner output shaft 1 are sheathed with at least one driven gear meshing with the corresponding driving gear.

The second outer output shaft 18 and the second inner output shaft 17 are coaxially nested together, and the second final reduction gear 26 meshing with the ring gear 24 of the differential 23 is fixedly arranged on the second inner output shaft 17 The second outer output shaft 18 and the second inner output shaft 17 are sheathed with at least one driven gear meshing with the corresponding driving gear.

A synchronizing device, the synchronizing device is used to control the combination and separation of all driven gears and their shafts, the combination and separation of the first outer output shaft 10 and the first inner output shaft 1 and the second outer output Coupling and disengagement of the shaft 18 and the second inner output shaft 17 .

In this embodiment, the first outer output shaft 28 is also provided with a reverse driving gear 5 , and the reverse driving gear 5 is connected to one of the driving gears on the outer input shaft 28 or the inner input shaft 14 engage. Thus, compared with the prior art (such as CN103711845A), the reverse gear set only includes the reverse drive gear, which reduces the reverse driven gear, reverse intermediate gear and reverse intermediate shaft, so the structure of the reverse gear set is simple, Reduced costs. In addition, the reverse drive gear 5 is engaged with one of the drive gears, that is, it is engaged with a forward gear of the transmission, so the setting of the reverse drive gear 5 does not additionally increase the axial length of the transmission, which is beneficial The miniaturization of the transmission is conducive to the layout of front-wheel drive models.

In this embodiment, the driving gear of the external input shaft 28 includes a seventh-speed driving gear 32 and a third-speed driving gear 33 arranged in sequence in a direction away from the power source 29, and the seventh-speed driving gear 32 is simultaneously used as a ninth-speed driving gear. Gear driving gear, the driving gear of the inner input shaft 14 includes a fourth gear driving gear 11, a sixth gear driving gear 12, an eighth gear driving gear 15 and a second gear driving gear 13 arranged in sequence in a direction away from the power source 29; The idler gear on the first inner output shaft 1 includes a ninth-speed driven gear 3 meshing with the seventh-speed driving gear 32; The sixth gear driven gear 7 and the second gear driven gear 9 meshed with the sixth gear driving gear 12 and the second gear driving gear 13; Gear 33, the third gear driven gear 22, the fourth gear driven gear 21 and the eighth gear driven gear 19 meshed with the fourth gear driving gear 11 and the eighth gear driving gear 19; the driven gear of the empty sleeve on the second inner output shaft 17 The gears include a seventh-speed driven gear 27 meshing with the seventh-speed driving gear 32 .

In this embodiment, the synchronization device includes:

The first synchronizer 4 connected to the first inner output shaft 1, the first synchronizer 4 is used to control the first outer output shaft 10 and the first inner output shaft 1 and the ninth gear driven The coupling and disengagement of the gear 3 with the first inner output shaft 1.

A second synchronizer 6 connected to the first outer output shaft 10 and located between the reverse drive gear 5 and the sixth-speed driven gear 7, the second synchronizer 6 is used to control the The combination and separation of the sixth-speed driven gear 7 and the first outer output shaft 10 and the reverse driving gear 5 and the first outer output shaft 10 .

A third synchronizer 8 connected to the first outer output shaft 10 and located between the sixth-speed driven gear 7 and the second-speed driven gear 9, the third synchronizer 8 is used to control the Combination and separation of the sixth-speed driven gear 7 and the second-speed driven gear 9 with the first outer output shaft 10 .

The fourth synchronizer 16 connected to the second inner output shaft 17 is used to control the combination and separation of the second outer output shaft 18 and the second inner output shaft 17 . Preferably, the fourth synchronizer 16 is disposed on an end of the second inner output shaft 17 away from the power source 29 .

A fifth synchronizer 20 connected to the second outer output shaft 18 and located between the eighth-speed driven gear 19 and the fourth-speed driven gear 21, the fifth synchronizer 20 is used to control the Combination and separation of the eighth-speed driven gear 19 and the fourth-speed driven gear 21 with the second outer output shaft 18 .

The sixth synchronizer 20 connected to the second outer output shaft 18 and located between the third gear driven gear 22 and the seventh gear driven gear 27, the sixth synchronizer 20 is used to control the third gear The combination and separation of the first-speed driven gear 7 and the second outer output shaft 18 and the seventh-speed driven gear 27 and the second inner output shaft 17 .

Above-mentioned first synchronizer 4, the second synchronizer 6, the third synchronizer 8, the fourth synchronizer 16, the fifth synchronizer 20 and the sixth synchronizer 25 are conventional synchronizers, which are controlled by shift forks. slide on the axis it is on. In addition, the inner rings of the first synchronizer 4, the second synchronizer 6, the third synchronizer 8, the fourth synchronizer 16, the fifth synchronizer 20 and the sixth synchronizer 25 are all provided with internal splines, And the outer surfaces of the shafts connected with the first synchronizer 4, the second synchronizer 6, the third synchronizer 8, the fourth synchronizer 16, the fifth synchronizer 20 and the sixth synchronizer 25 are all provided with external splines, In this way, the first synchronizer 4 , the second synchronizer 6 , the third synchronizer 8 , the fourth synchronizer 16 , the fifth synchronizer 20 and the sixth synchronizer 25 are connected to the shafts where they are located. At the same time, through the cooperation of the internal and external splines, the first synchronizer 4, the second synchronizer 6, the third synchronizer 8, the fourth synchronizer 16, the fifth synchronizer 20 and the sixth synchronizer 25 can only move along their respective positions. Axial movement of the axis at which it is located, but cannot be rotated relative to the axis at which it is located.

In this embodiment, the reverse gear driving gear 5 meshes with the third gear driving gear 33 . The reverse driving gear 5 is fixedly arranged on the first outer output shaft 10 between the first synchronizer 4 and the second synchronizer 6 . Certainly, in other embodiments, it is also possible to choose to engage with the driving gear of the forward gear, as long as the required speed ratio of the reverse gear is met.

In this embodiment, as shown in Figure 1, there are seven groups of forward gear sets, that is, the second gear driving gear 13 and the second gear driven gear 9, the third gear driving gear 33 and the third gear driven gear 22, and the fourth gear. Driving gear 11 and fourth gear driven gear 21, sixth gear driving gear 12 and sixth gear driven gear 7, seventh gear driving gear 32 and seventh gear driven gear 27, eight gear driving gear 15 and eight gear driven gear 19, Nine-speed driving gear (nine-speed driving gear and seven-speed driving gear 32 share a driving gear) and nine-speed driven gear 3 .

By controlling the different states of the first synchronizer 4, the second synchronizer 6, the third synchronizer 8, the fourth synchronizer 16, the fifth synchronizer 20 and the sixth synchronizer 25, the above seven groups of forward gear sets can be utilized Realize the functions of the first gear and the fifth gear, and construct a nine-speed dual-clutch transmission with this. Of course, the above seven groups of forward gear sets can also be used to realize the functions of first gear, fifth gear and tenth gear, so as to construct a ten-speed dual-clutch transmission. Of course, based on the same principle, by controlling the different states of the first synchronizer 4, the second synchronizer 6, the third synchronizer 8, the fourth synchronizer 16, the fifth synchronizer 20 and the sixth synchronizer 25, it is also possible to Build a dual-clutch transmission with more than eleven gears.

Like this, when realizing such as nine-speed dual-clutch transmission or ten-speed dual-clutch transmission, there are only six driving gears on the outer input shaft 28 and the inner input shaft 14, so that the dual-clutch transmission of the present embodiment is axially The length is shorter than the axial length of the conventional seven-speed dual-clutch transmission (a conventional seven-speed dual-clutch transmission requires seven forward gears and one reverse gear), so it is beneficial to the miniaturization of the transmission and the front drive The layout of the vehicle.

Next, take the ten-speed dual-clutch transmission as an example to illustrate the power transmission route when the dual-clutch transmission of this embodiment works in each gear (the power source is selected as an engine):

First gear power transmission line:

First, the sixth synchronizer 25 is engaged with the third-speed driven gear 22, the fifth synchronizer 20 is engaged with the fourth-speed driven gear 21, the third synchronizer 8 is engaged with the second-speed driven gear 9, and the first synchronizer 4 and the second-speed driven gear are engaged. The first outer output shaft 10 is engaged and the other synchronizers are disengaged. The first clutch 31 is closed, and the engine torque is passed to the third gear driving gear 33 of the external input shaft 28 by the first clutch 31, and then passed to the third gear driven gear 22 through the third gear driving gear 33; The sixth synchronizer 25 is engaged, and then the torque is transmitted to the second outer output shaft 18 via the sixth synchronizer 25; since the fifth synchronizer 20 is engaged with the fourth gear driven gear 21, the torque is then transmitted to the inner input shaft 14; Since the third synchronizer 8 is engaged with the second gear driven gear 9, the torque is then transmitted to the second gear driven gear 9 by the second gear driving gear 13 on the inner input shaft 14, and then the torque is transmitted to the second gear by the third synchronizer 8. The first outer output shaft 10; because the first outer output shaft 10 is engaged with the first synchronizer 4 on the first inner output shaft 1, the torque is transmitted to the first final reduction gear 2; and then through the differential 23 Ring gear 24, and finally output power from differential 23.

Second gear power transmission line:

First, the third synchronizer 8 is engaged with the second gear driven gear 9; the first synchronizer 4 is engaged with the first outer output shaft 10, and the other synchronizers are separated. The second clutch 30 is closed, and the engine torque is transmitted to the inner input shaft 14 through the second clutch 30, then to the second gear driven gear 13 fixed on the inner input shaft 14 to the second gear driven gear 9, and then through the second gear driven gear 9 is engaged with the third synchronizer 8 to transmit the torque to the first outer output shaft 10, and then through the engagement of the first outer output shaft 10 with the first synchronizer 4, the torque is transmitted to the first inner output shaft 1 The first final reduction gear 2 passes through the differential gear ring gear 24 and finally outputs power from the differential gear 23 .

Three-speed power transmission line:

Firstly, the sixth synchronizer 25 is engaged with the third gear driven gear 22; the fourth synchronizer 16 is engaged with the second outer output shaft 18, and the other synchronizers are disengaged. The first clutch 31 is closed, and the engine torque is transmitted to the third-speed driving gear 11 of the external input shaft 28 through the first clutch 31 , and then to the third-speed driven gear 22 via the third-speed driving gear 11 . The torque is transmitted to the second outer output shaft 18 through the engagement of the third gear driven gear 22 and the sixth synchronizer 25; and then the second outer output shaft 18 is engaged with the fourth synchronizer 17 to transmit the torque to the second inner The second final reduction gear 26 on the output shaft 17 passes through the differential ring gear 24 and finally outputs power from the differential 23 .

Four-speed power transmission line:

First, the fifth synchronizer 20 is engaged with the fourth gear driven gear 21; the fourth synchronizer 16 is engaged with the second outer output shaft 18, and the other synchronizers are disengaged. The second clutch 30 is closed, and the engine torque is transmitted to the inner input shaft 14 through the second clutch 30, then to the fourth-speed driven gear 12 fixed on the inner input shaft 14 to the fourth-speed driven gear 21, and then through the fourth-speed driven gear 21 is engaged with the fifth synchronizer 20 to transmit the torque to the second outer output shaft 18, and then through the engagement of the second outer output shaft 18 with the fourth synchronizer 17, the torque is transmitted to the second inner output shaft 17 The second final reduction gear 26 passes through the differential gear ring gear 24 and finally outputs power from the differential gear 23 .

Five-speed power transmission line:

First, the sixth synchronizer 25 is engaged with the third-speed driven gear 22; the fifth synchronizer 20 is engaged with the fourth-speed driven gear 21; the second synchronizer 6 is engaged with the sixth-speed driven gear 7; the first outer output shaft 10 It is engaged with the first synchronizer 4, and the other synchronizers are disengaged. The first clutch 31 is closed, and the engine torque is transmitted to the third-speed driving gear 33 of the external input shaft 28 through the first clutch 31 , and then to the third-speed driven gear 22 via the third-speed driving gear 33 . Through the engagement of the third-speed driven gear 22 and the sixth synchronizer 25, the torque is transmitted to the fifth synchronizer 20 on the second outer output shaft 18, and then through the engagement of the fifth synchronizer 20 and the fourth-speed driven gear 21, The torque is transmitted to the sixth-speed driving gear 12 on the inner input shaft 14, and the sixth-speed driving gear 12 transmits the torque to the sixth-speed driven gear 7; the sixth-speed driven gear 7 is engaged with the second synchronizer 6 to transmit the torque to On the first outer output shaft 10, through the engagement of the first outer output shaft 10 and the first synchronizer 4, the torque is transmitted to the first final reduction gear 2 on the first inner output shaft 1, and then through the differential ring gear 24, and finally output power by the differential 23.

Six-speed power transmission line:

First, the second synchronizer 6 is engaged with the sixth-speed driven gear 7; the first synchronizer 4 is engaged with the first outer output shaft 10, and the other synchronizers are separated. The second clutch 30 is closed, and the engine torque is transmitted to the inner input shaft 14 through the second clutch 30, and then to the sixth-speed driven gear 7 through the sixth-speed driving gear 12 fixed on the inner input shaft 14, and then through the sixth-speed driven gear. The engagement of 7 with the second synchronizer 6 transmits torque to the first outer output shaft 10 . Then through the engagement of the first outer output shaft 10 and the first synchronizer 4, the torque is transmitted to the first final reduction gear 2 on the first inner output shaft 1, then through the differential ring gear 24, and finally by the differential 23 output power.

Seven-speed power transmission line:

First, the sixth synchronizer 25 is engaged with the seventh-speed driven gear 27; the fourth synchronizer 16 is engaged with the second outer output shaft 18, and the other synchronizers are disengaged. The first clutch 31 is closed, and the engine torque is delivered to the seventh-speed driving gear 32 of the external input shaft 28 by the first clutch 31, and then passed to the seventh-speed driven gear 27 via the seven-speed driving gear (32). Through the engagement of the seventh-speed driven gear 27 and the sixth synchronizer 25, the torque is transmitted to the second outer output shaft 18, and then through the engagement of the second outer output shaft 18 and the fourth synchronizer 16, the torque is transmitted to the second The second final reduction gear 26 on the inner output shaft 17 passes through the differential ring gear 24 and finally outputs power from the differential 23 .

Eight-speed power transmission line:

First, the fifth synchronizer 20 is engaged with the eighth gear driven gear 19; the fourth synchronizer 16 is engaged with the second outer output shaft 18, and the other synchronizers are disengaged. The second clutch 30 is closed, and the engine torque is transmitted to the inner input shaft 14 through the second clutch 30, and then to the eighth-speed driven gear 19 through the eighth-speed driving gear 15 fixed on the inner input shaft 14, and then through the eighth-speed driven gear. The engagement of 19 with the fifth synchronizer 20 transmits the torque to the second outer output shaft 18, and through the engagement of the second outer output shaft 18 with the fourth synchronizer 16, the torque is transmitted to the second inner output shaft 17 The second final reduction gear 26 passes through the differential gear ring gear 24 and finally outputs power from the differential gear 23 .

Nine-speed power transmission route:

First, the first synchronizer 4 is engaged with the ninth-speed driven gear 3, and the other synchronizers are disengaged. The first clutch 31 is closed, and the engine torque is passed to the seven-speed driving gear 32 of the outer input shaft 28 by the first clutch 31 (the seven and nine gears share a driving gear), and the seven-speed driving gear 32 is passed to the nine-speed driven gear 3 . Through the engagement of the ninth gear driven gear 3 and the first synchronizer 4, the torque is transmitted to the first final reduction gear 2 on the first inner output shaft 1, then through the differential ring gear 24, and finally by the differential gear 23 output power.

Ten-speed power transmission route:

First, the fifth synchronizer 20 is engaged with the eighth-speed driven gear 19; the sixth synchronizer 25 is engaged with the seventh-speed driven gear 27; the first synchronizer 4 is engaged with the ninth-speed driven gear 3, and the other synchronizers are separated. The second clutch 30 is closed, and the engine torque is transmitted to the eighth-speed driving gear 15 of the inner input shaft 14 through the second clutch 30 , and then to the eighth-speed driven gear 19 via the eighth-speed driving gear 15 . Through the engagement of the eighth gear driven gear 19 and the fifth synchronizer 20, the torque is transmitted to the sixth synchronizer 25 on the second outer output shaft 18, and then through the engagement of the sixth synchronizer 25 and the seventh gear driven gear 27, Torque is transmitted to the seventh-speed driving gear 32 on the external input shaft 28, and the seventh-speed driving gear 32 transmits the torque to the ninth-speed driven gear 3; through the engagement of the ninth-speed driven gear 3 and the first synchronizer 4, the torque The power transmitted to the first final reduction gear 2 on the first inner output shaft 1 passes through the differential ring gear 24 , and finally the power is output by the differential 23 .

Reverse power transmission line:

First, the third synchronizer 8 is engaged with the second gear driven gear 9; the second synchronizer 6 is engaged with the reverse driving gear 5; the fourth synchronizer 16 is engaged with the second outer output shaft 18; the sixth synchronizer 25 is engaged with the third gear. Block driven gear 22 is engaged, and other synchronizers are disengaged. The second clutch 30 is closed, and the engine torque is transmitted to the second gear driving gear 13 of the inner input shaft 14 through the second clutch 30 , and then to the second gear driven gear 9 via the second gear driving gear 13 . Through the engagement of the second gear driven gear 9 and the third synchronizer 8, the torque is transmitted to the second synchronizer 6 on the first outer output shaft 10, and then through the engagement of the second synchronizer 6 and the reverse drive gear 5, by The reverse driving gear 5 transmits the torque to the third-speed driven gear 22; through the engagement of the third-speed driven gear 22 and the sixth synchronizer 25, the torque is transmitted to the second outer output shaft 18, and then through the second outer output shaft 18. The engagement of the shaft 18 with the fourth synchronizer 16 transmits the torque to the second final reduction gear 26 on the second inner output shaft 17 , then passes through the differential ring gear 24 , and finally outputs power from the differential 23 .

In the ten-speed dual-clutch transmission described above, under the condition that the mechanical structure remains unchanged, the control flow of the ten-speed is removed, that is, a nine-speed dual-clutch transmission can be obtained.

Of course, in other embodiments, the ninth-speed driven gear and the control flow of the ninth-speed and tenth-speed can also be removed, and then an eight-speed dual-clutch transmission can also be obtained.

According to the multi-speed dual-clutch transmission of the above-mentioned embodiments of the utility model, the synchronizing device is not only used to control the combination and separation of all driven gears and the shafts where they are located, but also can control the first outer output shaft and the second output shaft. The combination and separation of an inner output shaft and the combination and separation of the second outer output shaft and the second inner output shaft, so that the driven gear of the corresponding gear on the first outer output shaft and the second outer output shaft and the inner After the driving gear of the corresponding gear on the input shaft or the outer input shaft is engaged, the combination of the first outer output shaft and the first inner output shaft or the second outer output shaft and the second inner output shaft can be controlled by the synchronizing device, so that the power can be It is directly transmitted to the first final reduction gear on the first inner output shaft or the second final reduction gear on the second inner output shaft without the help of driven gears and driving gears in other gears. The power transmission path from the source (engine or motor) to the first main reduction gear or the second main reduction gear improves the transmission efficiency of the transmission, reduces the reaction time of gear shifting, and improves the comfort of vehicle operation.

In addition, as shown in Figure 2, in another embodiment of the present invention, a seven-speed dual-clutch transmission is provided. Compared with the ten-speed dual-clutch transmission shown in Figure 1, the seven-speed dual-clutch transmission of this embodiment In terms of structure, the eighth-speed driving gear 15, the eighth-speed driven gear 19 and the ninth-speed driven gear 3 are removed, and the other mechanical structures are the same. The example is exactly the same.

In the seven-speed dual-clutch transmission of the present embodiment, there are only five driving gears on the outer input shaft 28 and the inner input shaft 14, so that the axial length of the dual-clutch transmission of the present embodiment is only longer than that of the conventional seven-speed dual-clutch transmission. The axial length of the clutch transmission should be short (a conventional seven-speed dual-clutch transmission needs seven forward gears and one reverse gear), which is conducive to the miniaturization of the transmission and the layout of the front-drive model.

In addition, an embodiment of the present utility model also provides a vehicle, which includes the above-mentioned multi-speed dual-clutch transmission.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. keep off a double-clutch speed changer more, it is characterized in that, comprising:

The outer input shaft (28) coaxially nested together and interior input shaft (14), described outer input shaft (28) is connected with power source (29) by first clutch (31), described interior input shaft (14) is connected with power source (29) by second clutch (30), and described outer input shaft (28) and interior input shaft (14) are fixedly installed multiple driving gear;

Output shaft (1) in coaxially nest together first outer output shaft (10) and first, in described first, output shaft (1) is fixedly installed the first final gear (2) engaged with the gear ring of differential mechanism (23) (24), in described first outer output shaft (10) and first, output shaft (1) is set with at least one driven gear engaged with corresponding described driving gear;

Output shaft (17) in coaxially nest together second outer output shaft (18) and second, in described second, output shaft (17) is fixedly installed the second final gear (26) engaged with the gear ring of differential mechanism (23) (24), in described second outer output shaft (18) and second, output shaft (17) is set with at least one driven gear engaged with corresponding described driving gear;

Synchronizer, described synchronizer for the combination that controls all driven gears and axle residing for it be separated, in described first outer output shaft (10) and first output shaft (1) combination be separated and in described second outer output shaft (18) and second output shaft (17) combination be separated.

2. according to claim 1ly keep off double-clutch speed changer more, it is characterized in that, described first outer output shaft (10) is also set with the driving gear that reverses gear (5), described in the driving gear (5) that reverses gear engage with one of them driving gear on described outer input shaft (28) or interior input shaft (14).

3. according to claim 2ly keep off double-clutch speed changer more, it is characterized in that, the driving gear of described outer input shaft (28) comprises seven gears driving gear (32) and three gears driving gear (33) that set gradually to the direction away from described power source (29), and the driving gear of described interior input shaft (14) comprises four gears driving gear (11), six gears driving gear (12) and two gears driving gear (13) that set gradually to the direction away from described power source (29); The driven gear of the upper empty set of described first outer output shaft (10) comprise keep off that driving gear (12) and two keeps off that driving gear (13) engages respectively with described six six keep off driven gear (7) and two and keep off driven gear (9); The driven gear of the upper empty set of described second outer output shaft (18) comprise keep off that driving gear (33) and four keeps off that driving gear (11) engages respectively with described three three keep off driven gear (22) and four and keep off driven gear (21); In described second the driven gear of the upper empty set of output shaft (17) comprise to keep off with described seven that driving gear (32) engages seven keep off driven gear (27).

4. according to claim 3ly keep off double-clutch speed changer, it is characterized in that, described synchronizer comprises more:

Be connected to first synchronizer (4) of output shaft (1) in described first, described first synchronizer (4) for the combination that controls output shaft (1) in described first outer output shaft (10) and first be separated;

Be connected to the upper and driving gear (5) and described six that reverses gear described in being positioned at of described first outer output shaft (10) and keep off the second synchronizer (6) between driven gear (7), described second synchronizer (6) for control described six keep off driven gear (7) and described first outer output shaft (10) and described in reverse gear driving gear (5) and described first outer output shaft (10) combination be separated;

Be connected to described first outer output shaft (10) upper and be positioned at described six gears driven gear (7) and described two and keep off the 3rd synchronizer (8) between driven gear (9), described 3rd synchronizer (8) keeps off combination that driven gear (7) and described two keeps off driven gear (9) and described first outer output shaft (10) for controlling described six and is separated;

Be connected to the 4th synchronizer (16) in described second on output shaft (17), described 4th synchronizer (16) for the combination that controls output shaft (17) in described second outer output shaft (18) and second be separated;

Be connected to described second outer output shaft (18) upper and be positioned at described 4th synchronizer (16) and described four and keep off the 5th synchronizer (20) between driven gear (21), described 5th synchronizer (20) is for controlling described four combinations keeping off driven gear (21) and described second outer output shaft (18) and being separated;

Be connected to described second outer output shaft (18) upper and be positioned at described three gears driven gear (22) and seven and keep off the 6th synchronizer (25) between driven gear (27), described 6th synchronizer (25) keeps off combination that driven gear (22) and described second outer output shaft (18) and described seven keep off driven gear (27) and output shaft (17) in described second for controlling described three and is separated.

5. according to claim 4ly keep off double-clutch speed changer, it is characterized in that, described 4th synchronizer (16) is arranged on the one end away from described power source (29) on output shaft (17) in described second more.

6. according to claim 2ly keep off double-clutch speed changer more, it is characterized in that, the driving gear of described outer input shaft (28) comprises seven gears driving gear (32) and three gears driving gear (33) that set gradually to the direction away from described power source (29), described seven gears driving gear (32) are used as nine gear driving gears simultaneously, the driving gear of described interior input shaft (14) comprises four gears driving gear (11) set gradually to the direction away from described power source (29), six gears driving gear (12), eight gears driving gear (15) and two gears driving gear (13), in described first the driven gear of the upper empty set of output shaft (1) comprise to keep off with described seven that driving gear (32) engages nine keep off driven gear (3), the driven gear of the upper empty set of described first outer output shaft (10) comprise keep off that driving gear (12) and two keeps off that driving gear (13) engages respectively with described six six keep off driven gear (7) and two and keep off driven gear (9), the driven gear of the upper empty set of described second outer output shaft (18) comprise keep off that driving gear (33), four keeps off that driving gear (11) and eight keeps off that driving gear (15) engages respectively with described three three keep off driven gear (22), four and keep off driven gear (21) and eight and keep off driven gear (19), in described second the driven gear of the upper empty set of output shaft (17) comprise to keep off with described seven that driving gear (32) engages seven keep off driven gear (27).

7. according to claim 6ly keep off double-clutch speed changer, it is characterized in that, described synchronizer comprises more:

Be connected to the first synchronizer (4) in described first on output shaft (1), described first synchronizer (4) for the combination that controls described first outer output shaft (10) and output shaft in first (1) and described nine and keep off driven gear (3) and output shaft in first (1) be separated;

Be connected to the upper and driving gear (5) and described six that reverses gear described in being positioned at of described first outer output shaft (10) and keep off the second synchronizer (6) between driven gear (7), described second synchronizer (6) for control described six keep off driven gear (7) and described first outer output shaft (10) and described in reverse gear driving gear (5) and described first outer output shaft (10) combination be separated;

Be connected to described first outer output shaft (10) upper and be positioned at described six gears driven gear (7) and described two and keep off the 3rd synchronizer (8) between driven gear (9), described 3rd synchronizer (8) keeps off combination that driven gear (7) and described two keeps off driven gear (9) and described first outer output shaft (10) for controlling described six and is separated;

Be connected to the 4th synchronizer (16) in described second on output shaft (17), described 4th synchronizer (16) for the combination that controls output shaft (17) in described second outer output shaft (18) and second be separated;

Be connected to described second outer output shaft (18) upper and be positioned at described eight gears driven gear (19) and described four and keep off the 5th synchronizer (20) between driven gear (21), described 5th synchronizer (20) keeps off combination that driven gear (19) and four keeps off driven gear (21) and described second outer output shaft (18) for controlling described eight and is separated;

Be connected to described second outer output shaft (18) upper and be positioned at described three gears driven gear (22) and seven and keep off the 6th synchronizer (25) between driven gear (27), described 6th synchronizer (25) keeps off combination that driven gear (22) and described second outer output shaft (18) and described seven keep off driven gear (27) and output shaft (17) in described second for controlling described three and is separated.

8. according to claim 7ly keep off double-clutch speed changer, it is characterized in that, described 4th synchronizer (16) is arranged on the one end away from described power source (29) on output shaft (17) in described second more.

9. the many gears double-clutch speed changer according to claim 3-8 any one, is characterized in that, described in the driving gear (5) and described three that reverses gear keep off driving gear (33) and engage.

10. a vehicle, is characterized in that, comprises the many gears double-clutch speed changer described in claim 1-9 any one.