Summary of the invention
The problem that axial length is long, amount of parts is many, assembly process is more complicated that exists in order to solve existing dual-clutch transmission the invention provides a kind of new structure transmission device of double clutch transmission.
The present invention realizes that the technical solution of above-mentioned purpose is as follows:
Transmission device of double clutch transmission comprises the interior input shaft 1 of coaxial setting and outer input shaft 2, the first output shaft 3, the second output shaft 4, and outer input shaft 2 is hollow shaft, be nested on interior input shaft 1, and coaxial with interior input shaft 1; Establish respectively gear on above-mentioned four axles, also comprise first clutch C1 and second clutch C2, first clutch C1 is located at an end of interior input shaft 1, and second clutch C2 is located at outer input shaft 2 one ends;
Be fixed with successively a gear driving gear 11, seven gear driving gears 17 and three gear driving gear 13, three gear driving gears on the other end of described interior input shaft 1 simultaneously as five gear driving gears;
Be fixed with successively four gear driving gears 24 and two gear driving gear 22, four gear driving gears on the other end of described outer input shaft 2 simultaneously as six gear driving gears, two gear driving gears are simultaneously as reversing gear driving gear;
Be provided with successively on described the first output shaft 3 one the gear driven gear 31, three the gear driven gears 33, four the gear driven gears 34, driven gear 38 and the first output gear 30 reverse gear; Wherein a gear driven gear 31, three gear driven gears 33, four keep off driven gears 34, reverse gear driven gear 38 empty sets on the first output shaft 3, and can rotate around the first output shaft 3; The first output gear 30 is fixedly connected with the first output shaft 3, is used for exporting the moment of torsion of the first output shaft 3; Be fixed with the first synchronizer SC1 on the first output shaft 3 between a described gear driven gear 31 and three gear driven gears 33, optionally the first gear moment of torsion and the 3rd gear moment of torsion passed to the first output shaft 3; Be fixed with the second synchronizer SC2 on described four gear driven gears 34 and the first output shaft 3 between driven gear 38 of reversing gear, optionally the 3rd gear moment of torsion and the moment of torsion that reverses gear passed to the first output shaft 3;
Be provided with successively parking ratchet wheel 49, seven gear driven gears 47, five gear driven gears 45, six gear driven gears 46, two gear driven gear 42 and the second output gears 40 on described the second output shaft 4, wherein seven gear driven gears 47, five gear driven gears 45, six gear driven gears 46 and two keep off driven gear 42 empty sets on the second output shaft 4, and can rotate around the second output shaft 4; Described parking ratchet wheel 49 is fixedly connected with the second output shaft 4; Described the second output gear 40 is fixedly connected with the second output shaft 4, is used for exporting the moment of torsion of the second output shaft 4; Be fixed with the 4th synchronizer SC4 on the second output shaft 4 between described seven gear driven gears 47 and five gear driven gears 45, the 4th synchronizer SC4 optionally passes to the second output shaft 4 with the 7th gear moment of torsion and the 5th gear moment of torsion; Be fixed with the 3rd synchronizer SC3 on the second output shaft 4 between described six gear driven gears 46 and two gear driven gears 42, optionally the 6th gear moment of torsion and the second gear moment of torsion passed to the second output shaft 4;
A described gear driving gear 11 and a gear driven gear 31 are normal engagement, described seven gear driving gears 17 and seven gear driven gears 37 are normal engagement, three gear driving gears 13 are normal engagement with three gear driven gears 33, five gear driven gears 45 simultaneously, four gear driving gears 24 are normal engagement with four gear driven gears 34, six gear driven gears 46 simultaneously, two gear driving gears 22 and two gear driven gears 42 are normal engagement, and two gear driven gears 42 and the driven gear 38 that reverses gear are normal engagement.
Useful technique effect of the present invention embodies in the following areas:
1, the present invention shares three gear driving gears as three gears and five gears, four gear driving gears are shared as four gears and six gears, also keep off driving gears as two gear and the shared gears that reverse gear with two, make axial length shorter, in the situation that moment of torsion is suitable, more than can shortening axial length 30mm;
2, the present invention makes work as idle wheel in the middle of reversing gear simultaneously with two gear driven gears, reverse gear shaft and the extra idle pulley that reverses gear have been cancelled, reduced amount of parts, according to different structure, at least the main parts size that reduces comprises 1 tapered roller bearing, 1 combination bearing, 1 reverse gear shaft and 2 gears, reduce gear box casing processing, Detection of content, reduced double clutch general assembly step, reduced cost;
3, the present invention with a gear with reverse gear arranged apartly on different clutches, has improved the working life of clutch, has improved the starting of pairing device speed changer and has controlled;
4, parking ratchet wheel of the present invention is arranged on the second output shaft near the high order end position of bearings, compares parking ratchet wheel is arranged in structure on differential mechanism, has reduced requirement of strength and the boundary dimension of halting mechanism.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is done to describe further.
Embodiment:
Referring to Fig. 1 and Fig. 2, transmission device of double clutch transmission comprises interior input shaft 1 and outer input shaft 2, the first output shaft 3, the second output shaft 4, first clutch C1 and the second clutch C2 of coaxial setting; Outer input shaft 2 is hollow shaft, is nested on interior input shaft 1, and coaxial with interior input shaft 1; Establish respectively gear on above-mentioned four axles, also comprise first clutch C1 and second clutch C2, first clutch C1 is located at an end of interior input shaft 1, and second clutch C2 is located at outer input shaft 2 one ends;
Be installed with successively a gear driving gear 11, seven gear driving gears 17 and three gear driving gear 13, three gear driving gears on the other end of interior input shaft 1 simultaneously as five gear driving gears.
Be installed with successively four gear driving gears 24 and two gear driving gear 22, four gear driving gears on the other end of outer input shaft 2 simultaneously as six gear driving gears, two gear driving gears are simultaneously as reversing gear driving gear.
Be provided with successively on the first output shaft 3 one the gear driven gear 31, three the gear driven gears 33, four the gear driven gears 34, driven gear 38 and the first output gear 30 reverse gear; Wherein a gear driven gear 31, three gear driven gears 33, four keep off driven gears 34, reverse gear driven gear 38 empty sets on the first output shaft 3, and can rotate around the first output shaft 3; The first output gear 30 is fixedly connected with the first output shaft 3, is used for exporting the moment of torsion of the first output shaft 3; Be installed with the first synchronizer SC1 on the first output shaft between one gear driven gear 31 and three gear driven gears 33, optionally the first gear moment of torsion and the 3rd gear moment of torsion passed to the first output shaft 3; Be installed with the second synchronizer SC2 on described four gear driven gears 34 and the first output shaft 3 between driven gear 38 of reversing gear, optionally the 3rd gear moment of torsion and the moment of torsion that reverses gear passed to the first output shaft 3.
Be provided with successively parking ratchet wheel 49, seven gear driven gears 47, five gear driven gears 45, six gear driven gears 46, two gear driven gear 42 and the second output gears 40 on the second output shaft 4, wherein seven gear driven gears 47, five gear driven gears 45, six gear driven gears 46 and two keep off driven gear 42 empty sets on the second output shaft 4, and can rotate around the second output shaft 4.Parking ratchet wheel 49 is fixedly connected with the second output shaft 4.The second output gear 40 is fixedly connected with the second output shaft 4, is used for exporting the moment of torsion of the second output shaft 4.Be installed with the 4th synchronizer SC4 on the second output shaft 4 between seven gear driven gears 47 and five gear driven gears 45, the 4th synchronizer SC4 optionally passes to the second output shaft 4 with the 7th gear moment of torsion and the 5th gear moment of torsion.Be installed with the 3rd synchronizer SC3 on the second output shaft 4 between six gear driven gears 46 and two gear driven gears 42, optionally the 6th gear moment of torsion and the second gear moment of torsion passed to the second output shaft 4.
One gear driving gear 11 and a gear driven gear 31 are normal engagement, described seven gear driving gears 17 and seven gear driven gears 37 are normal engagement, three gear driving gears 13 are normal engagement with three gear driven gears 33, five gear driven gears 45 simultaneously, four gear driving gears 24 are normal engagement with four gear driven gears 34, six gear driven gears 46 simultaneously, two gear driving gears 22 and two gear driven gears 42 are normal engagement, and two gear driven gears 42 and the driven gear 38 that reverses gear are normal engagement.
Seven forward gears and a power transmission line that reverses gear of this device are as follows:
One gear power transmission line: the first synchronizer SC1 and gear driven gear 31 combinations, first clutch C1 is closed, Engine torque passes to interior input shaft 1 by first clutch C1, a gear driving gear 11 and one via normal engagement keeps off driven gear 31, the first synchronizer SC1, transfer torque to the first output shaft 3, subtract gear 60 engagements by the first output gear 30 and differential mechanism master again moment of torsion is passed to differential mechanism 6, and finally by differential mechanism 6 outputting powers.
Two gear power transmission lines: the 3rd synchronizer SC3 and two gear driven gear 42 combinations, second clutch C2 is closed, Engine torque passes to outer input shaft 2 by second clutch C2, two gear driving gears 22 and two via normal engagement keep off driven gears 42, the 3rd synchronizer SC3, transfer torque to the second output shaft 4, subtract gear 60 engagements by the second output gear 40 and differential mechanism master again moment of torsion is passed to differential mechanism 6, and finally by differential mechanism 6 outputting powers.
Three gear power transmission lines: the first synchronizer SC1 and three gear driven gear 33 combinations, first clutch C1 is closed, Engine torque passes to interior input shaft 1 by first clutch C1, three gear driving gears 13 and three via normal engagement keep off driven gears 33, the first synchronizer SC1, transfer torque to the first output shaft 3, subtract gear 60 engagements by the first output gear 30 and differential mechanism master again moment of torsion is passed to differential mechanism 6, and finally by differential mechanism 6 outputting powers.
Four gear power transmission lines: the second synchronizer SC2 and four gear driven gear 34 combinations, second clutch C2 is closed, Engine torque passes to outer input shaft 2 by second clutch C2, four gear driving gears 24 and four via normal engagement keep off driven gears 34, the second synchronizer SC2, transfer torque to the first output shaft 3, subtract gear 60 engagements by the first output gear 30 and differential mechanism master again moment of torsion is passed to differential mechanism 6, and finally by differential mechanism 6 outputting powers.
Five gear power transmission lines: the 4th synchronizer SC4 and five gear driven gear 45 combinations, first clutch C1 is closed, Engine torque passes to interior input shaft 1 by first clutch C1, five gear driving gears and five via normal engagement keep off driven gears 45, the 4th synchronizer SC4, transfer torque to the second output shaft 4, subtract gear 60 engagements by the second output gear 40 and differential mechanism master again moment of torsion is passed to differential mechanism 6, and finally by differential mechanism 6 outputting powers.
Six gear power transmission lines: the 3rd synchronizer SC3 and six gear driven gear 46 combinations, second clutch C2 is closed, Engine torque passes to outer input shaft 2 by second clutch C2, six gear driving gears and six via normal engagement keep off driven gears 46, the 3rd synchronizer SC3, transfer torque to the second output shaft 4, subtract gear 60 engagements by the second output gear 40 and differential mechanism master again moment of torsion is passed to differential mechanism 6, and finally by differential mechanism 6 outputting powers.
Seven gear power transmission lines: the 4th synchronizer SC4 and seven gear driven gear 47 combinations, first clutch C1 is closed, Engine torque passes to interior input shaft 1 by first clutch C1, seven gear driving gears 17 and seven via normal engagement keep off driven gears 47, the 4th synchronizer SC4, transfer torque to the second output shaft 4, subtract gear 60 engagements by the second output gear 40 and differential mechanism master again moment of torsion is passed to differential mechanism 6, and finally by differential mechanism 6 outputting powers.
Transfer route reverses gear: the second synchronizer SC2 and driven gear 38 combinations of reversing gear, second clutch C2 is closed, Engine torque passes to outer input shaft 2 by second clutch C2, change the gear sense of rotation as idle pulley in the middle of reversing gear simultaneously through two gear driving gears 22, two gear driven gear 42(), the driven gear 38 that reverses gear, the second synchronizer SC2, transfer torque to the first output shaft 3, subtract gear 60 engagements by the first output gear 30 and differential mechanism master again moment of torsion is passed to differential mechanism 6, and finally by differential mechanism 6 outputting powers, see Fig. 2.
Shift process illustrates:
One keeps off the process that shifts into second: dual-clutch transmission is in a gear, the first synchronizer SC1 and gear driven gear 31 combinations, and first clutch C1 is closed, and second clutch C2 opens; Dual-clutch transmission control system (in accompanying drawing 1 show) is sent the gear instruction that shifts into second, gear shifting actuating mechanism is in advance with the 3rd synchronizer SC3 and two gear driven gear 42 combinations, this moment, second clutch C2 still was in open mode, i.e. second clutch C2 and the second output shaft 4 transferring power not; Along with shift process continues, first clutch C1 opens gradually, and meanwhile, second clutch C2 is closed gradually, and this process torque break can not occur; First clutch C1 opens fully, after the complete closure of second clutch C2, the first synchronizer SC1 throws off the combination with a gear driven gear 31, finish shift process, Engine torque subtracts gear 60, is finally exported by differential mechanism 6 via second clutch C2, outer input shaft 2, two gear driving gears 22, two gear driven gears 42, the 3rd synchronizer SC3, the second output shaft 4, the second output gear 40, differential mechanism master.