CN203743329U - Transmission provided with double clutches and double countershafts - Google Patents
Transmission provided with double clutches and double countershafts Download PDFInfo
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- CN203743329U CN203743329U CN201420116150.4U CN201420116150U CN203743329U CN 203743329 U CN203743329 U CN 203743329U CN 201420116150 U CN201420116150 U CN 201420116150U CN 203743329 U CN203743329 U CN 203743329U
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Abstract
The utility model relates to a transmission provided with double clutches and double countershafts. The transmission comprises double clutches, a solid input shaft, a hollow input shaft, double countershafts and an output shaft, wherein left ends of the solid input shaft and the hollow input shaft which are coaxially designed are connected with the double clutches respectively, and right ends of the solid input shaft and the hollow input shaft are connected with normally engaged gears in a gearbox respectively; the transmission adopts 12 gears including 5 low-speed drive gears, 5 high-speed drive gears and 2 reverse gears; a driving gear connected with the solid shaft is meshed with corresponding driven gears on the two countershafts simultaneously, the transmission ratio is smaller, and the 5 high-speed drive gears and a high-speed reverse gear of the transmission are formed; and a driving gear connected with the hollow shaft is meshed with the corresponding driven gears on the two countershafts simultaneously, the transmission ratio is larger, and the 5 low-speed drive gears and a low-speed reverse gear are formed. According to the transmission provided with the double clutches and the double countershafts, a sub-gearbox of the conventional double-countershaft transmission is cancelled, so that the structure of the transmission is compact, the axial dimension of the transmission is reduced, and the weight of a main transmission body is reduced by 5%-20%.
Description
Technical field
The utility model belongs to automotive transmission technical field, is specifically related to a kind of speed changer for heavy-duty car.
Background technique
Heavy-duty car own wt is very large, and Deadweight cargo capacity requires larger, and working environment is often all very complicated, severe.In the development of heavy-duty car high-power, in order to meet better and the mating and the requirement such as power performance and climbing of car load of motor, constantly reduce oil consumption, raise the efficiency, its speed changer is also towards many gears, large speed ratio, little differential future development.Research shows, expands transmission ratio scope and can make heavy-duty car have good power character, Economy and travelling comfort with increase transmission gear figure place.At present, the domestic twin countershaft transmission that uses more, this speed changer is divided into main-gear box, two parts of auxiliary transmission, main-gear box part adopts two jack shaft modes to reach the object of power dividing, and auxiliary transmission part exists two kinds of shunting modes: a kind of is to adopt the two jack shaft modes identical with main-gear box; Another kind is to adopt planetary gear train structure.Although twin countershaft transmission has been widely used in heavy-duty car field, still there is following point in it: 1. speed changer structure complexity.Existing twin countershaft transmission is divided into two parts of major and minor gearbox, realize gear number at double, but odd-side structure is very complicated by the synchronizer of odd-side, so that the housing structure of speed changer entirety becomes is also very complicated, and the processing technology more complicated of casing.2. assembly technology is very complicated.The structure of the major and minor case of existing twin countershaft transmission has been used multiple shafting structures, and the labyrinth of casing, makes the assembly technology of speed changer very complicated.3. axial dimension, volume and quality are larger.The axial dimension of existing twin countershaft transmission entirety is larger, and shared volume is large, and quality is also larger.
Model utility content
The problem existing in order to solve the existing speed changer for heavy-duty car, the utility model provides the speed changer with the two jack shafts of two clutches.
Concrete technical solution is as follows:
The speed changer with the two jack shafts of two clutches comprises primary input axle 1, output shaft 6, the first jack shaft 5, the second jack shaft 7 and double clutch 2, on described output shaft 6, empty set is provided with five gear driven gears 12, four gear driven gears 14, three gear driven gears 17, two gear driven gears 20, gear driven gear 21 and the driven gear 24 that reverses gear successively, wherein the output shaft 6 between five gear driven gears 12 and four gear driven gears 14 is provided with the 3rd synchronizer 33, three gear driven gears 17 and the output shaft 6 of two gears between driven gears 20 are provided with the second synchronizer 30, one gear driven gears 21 and the output shaft 6 that reverses gear between driven gear 24 is provided with the first synchronizer 25, on described the first jack shaft 5, be fixed with successively the first low speed driven gear 10, the first high speed driven gear the 11, the 1 gear driving gear the 13, the 1 gear driving gear the 15, the 1 gear driving gear the 16, the 1 gear driving gear the 18, the 1 gear driving gear 19 and first driving gear 22 that reverses gear, on described the second jack shaft 7, be fixed with successively the second low speed driven gear 36, the second high speed driven gear the 35, the 25 gear driving gear the 34, the 24 gear driving gear the 32, the 23 gear driving gear the 31, the 22 gear driving gear the 29, the 21 gear driving gear 28 and second driving gear 27 that reverses gear, wherein the one or five gear driving gear 13, the two or five gear driving gear 34 respectively with five gear driven gears 12 engage, the one or four gear driving gear 15, the two or four gear driving gear 32 respectively with four gear driven gears 14 engage, the one or three gear driving gear 16, the two or three gear driving gear 31 respectively with three gear driven gears 17 engage, the one or two gear driving gear 18, the two or two gear driving gear 29 respectively with two gear driven gears 20 engage, the one one gear driving gear 19, the 21 gear driving gear 28 respectively with one gear driven gears 21 engage, first driving gear 22 that reverses gear engages by the first reverse gear idle pulley 23 and driven gear 24 that reverses gear, second driving gear 27 that reverses gear engages by the second reverse gear idle pulley 26 and driven gear 24 that reverses gear,
The output terminal of described primary input axle 1 is connecting the sheet support arm of double clutch 2, and the opposite side of solid input shaft 3 is provided with high gear 9, and described high gear 9 respectively with the first high speed driven gears 11, the second high speed driven gear 35 engage; Solid input shaft 3 overhead are arranged with hollow input shaft 4; The sheet inner support of one end of described hollow input shaft 4 and double clutch 2 is connected, and the other end is provided with low speed gear 8, and described low speed gear 8 respectively with the first low speed driven gears 10, the second low speed driven gear 36 engage; Described solid input shaft 3, hollow input shaft 4 and output shaft 6 are coaxial, and corresponding moving cooperation of the inner of the other end of solid input shaft 3 and output shaft 6.
The other end of the solid input shaft 3 corresponding with the inner of output shaft 6 is sleeve pipe, and the inner of output shaft 6 is plugged in the sleeve pipe of solid input shaft 3.
Between described the 3rd synchronizer 33, the second synchronizer 30, the first synchronizer 25 and output shaft 6, being involute splines connects.
Compared with prior art, useful technique effect of the present utility model embodies in the following areas:
1. described in, speed changer has continued current twin countershaft transmission in many-sided advantages such as bearing capacity, power dividing and many gears.When double clutch 2 is worked by the different clutches of selection, to input different initial velocity ratios to speed changer, the difference of initial velocity ratio is: the velocity ratio that high gear 9 and the first high speed driven gear 11 and the second high speed driven gear 35 engage is simultaneously top gear district; The velocity ratio that low speed gear 8 and the first low speed driven gear 10, the second low speed driven gear 36 engage is simultaneously bottom gear district.High speed and low speed Liang Gedang district share the main driven gear of the each gear of speed changer.Adopt double clutch 2 to control respectively bottom gear district and the top gear district of described speed changer, i.e. the switching of bottom gear and top gear is to realize by the switching of double clutch 2;
2. the output terminal of the output shaft 6 of speed changer directly outputs to ransaxle by transmission shaft, save the auxiliary transmission structure of current twin countershaft transmission, shorten the axial dimension of speed changer entirety, simplify the housing structure of current speed changer complexity, bring good technology capability to mission case, comprehensively reduce costs.Can realize speed changer main body loss of weight 5%-20%;
3. simplified the labyrinth of current twin countershaft transmission casing, optimized the assembly process process of speed changer, described speed changer structure is simple, compact, is convenient to assembling and maintenance.Can shorten installation time 10%-30%, increase work efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the utility model one keeps off power bang path schematic diagram.
Fig. 3 is that the utility model six keeps off power bang path schematic diagram.
Fig. 4 is the utility model low speed power bang path schematic diagram that reverses gear.
Fig. 5 is the utility model power bang path schematic diagram that reverses gear at a high speed.
Sequence number in upper figure: primary input axle 1, double clutch 2, solid input shaft 3, hollow input shaft 4, the first jack shaft 5, output shaft 6, the second jack shaft 7, low speed gear 8, high gear 9, the first low speed driven gear 10, the first high speed driven gear 11, five gear driven gears 12, the one or five gear driving gear 13, four gear driven gears 14, the one or four gear driving gear 15, the one or three gear driving gear 16, three gear driven gears 17, the one or two gear driving gear 18, the one one gear driving gear 19, two gear driven gears 20, one gear driven gear 21, first driving gear 22 that reverses gear, first idle pulley 23 that reverses gear, driven gear 24 reverses gear, the first synchronizer 25, second idle pulley 26 that reverses gear, second driving gear 27 that reverses gear, the 21 gear driving gear 28, the two or two gear driving gear 29, the second synchronizer 30, the two or three gear driving gear 31, the two or four gear driving gear 32, the 3rd synchronizer 33.The two or five gear driving gear 34, the second high speed driven gear 35, the second low speed driven gear 36.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
Referring to Fig. 1, the speed changer with the two jack shafts of two clutches comprises primary input axle 1, output shaft 6, the first jack shaft 5, the second jack shaft 7 and double clutch 2, on described output shaft 6, empty set is provided with five gear driven gears 12, four gear driven gears 14, three gear driven gears 17, two gear driven gears 20, gear driven gear 21 and the driven gear 24 that reverses gear successively, wherein the output shaft 6 between five gear driven gears 12 and four gear driven gears 14 is provided with the 3rd synchronizer 33, three gear driven gears 17 and the output shaft 6 of two gears between driven gears 20 are provided with the second synchronizer 30, one gear driven gears 21 and the output shaft 6 that reverses gear between driven gear 24 is provided with the first synchronizer 25, on described the first jack shaft 5, be fixed with successively the first low speed driven gear 10, the first high speed driven gear the 11, the 1 gear driving gear the 13, the 1 gear driving gear the 15, the 1 gear driving gear the 16, the 1 gear driving gear the 18, the 1 gear driving gear 19 and first driving gear 22 that reverses gear, on described the second jack shaft 7, be fixed with successively the second low speed driven gear 36, the second high speed driven gear the 35, the 25 gear driving gear the 34, the 24 gear driving gear the 32, the 23 gear driving gear the 31, the 22 gear driving gear the 29, the 21 gear driving gear 28 and second driving gear 27 that reverses gear, wherein the one or five gear driving gear 13, the two or five gear driving gear 34 respectively with five gear driven gears 12 engage, the one or four gear driving gear 15, the two or four gear driving gear 32 respectively with four gear driven gears 14 engage, the one or three gear driving gear 16, the two or three gear driving gear 31 respectively with three gear driven gears 17 engage, the one or two gear driving gear 18, the two or two gear driving gear 29 respectively with two gear driven gears 20 engage, the one one gear driving gear 19, the 21 gear driving gear 28 respectively with one gear driven gears 21 engage, first driving gear 22 that reverses gear engages by the first reverse gear idle pulley 23 and driven gear 24 that reverses gear, second driving gear 27 that reverses gear engages by the second reverse gear idle pulley 26 and driven gear 24 that reverses gear.
The output terminal of primary input axle 1 is connecting the sheet support arm of double clutch 2, and the opposite side of solid input shaft 3 is provided with high gear 9, and described high gear 9 respectively with the first high speed driven gears 11, the second high speed driven gear 35 engage; Solid input shaft 3 overhead are arranged with hollow input shaft 4; The sheet inner support of one end of described hollow input shaft 4 and double clutch 2 is connected, and the other end is provided with low speed gear 8, and described low speed gear 8 respectively with the first low speed driven gears 10, the second low speed driven gear 36 engage;
Described solid input shaft 3, hollow input shaft 4 and output shaft 6 are coaxial, and corresponding moving cooperation of the inner of the other end of solid input shaft 3 and output shaft 6, the other end of the solid input shaft 3 corresponding with the inner of output shaft 6 is sleeve pipe, and the inner of output shaft 6 is plugged in the sleeve pipe of solid input shaft 3.
Between the 3rd synchronizer 33, the second synchronizer 30, the first synchronizer 25 and output shaft 6, being involute splines connects.
Working principle of the present utility model is described as follows:
Referring to Fig. 2, one gear power transmission path: power is inputted from primary input axle (1), after low speed gear (8), be divided into two power streams from the first low speed driven gear (10) and the second low speed driven gear (36) respectively, to gear driven gear (21) interflow until output.Specifically be divided into:
Article 1, power bang path: power → primary input axle (1) → double clutch (2) → hollow input shaft (4) → low speed gear (8) → first low speed driven gear (10) → first jack shaft (5) → the 1 gear driving gear (19) → gear driven gear (21) → first synchronizer (25) → output shaft (6);
Article 2 power bang path: power → primary input axle (1) → double clutch (2) → hollow input shaft (4) → low speed gear (8) → second low speed driven gear (36) → second jack shaft (7) → the 21 gear driving gear (28) → gear driven gear (21) → first synchronizer (25) → output shaft (6).
Referring to Fig. 3, six gear power transmission paths: power is inputted from primary input axle (1), after high gear (9), be divided into two power streams from the first high speed driven gear (11) and the second high speed driven gear (35) respectively, to gear follower (21) interflow until output.Specifically be divided into:
Article 1, power bang path: power → primary input axle (1) → double clutch (2) → solid input shaft (3) → high gear (9) → first high speed driven gear (11) → first jack shaft (5) → the 1 gear driving gear (19) → gear driven gear (21) → first synchronizer (25) → output shaft (6);
Article 2 power bang path: power → primary input axle (1) → double clutch (2) → solid input shaft (3) → high gear (9) → second high speed driven gear (35) → second jack shaft (7) → the 21 gear driving gear (28) → gear driven gear (21) → first synchronizer (25) → output shaft (6).
Referring to Fig. 4, the low speed power transmission path of reversing gear: power is inputted from primary input axle (1), after low speed gear (8), be divided into two power streams from the first low speed driven gear (10) and the second low speed driven gear (36) respectively, to the follower that reverses gear (24) interflow until output.Specifically be divided into:
Article 1, power bang path: power → primary input axle (1) → double clutch (2) → hollow input shaft (4) → low speed gear (8) → first low speed driven gear (10) → first jack shaft (5) → first driving gear (22) → first idle pulley (the 23) → driven gear that reverses gear (24) → first synchronizer (the 25) → output shaft (6) that reverses gear that reverses gear;
Article 2 power bang path: power → primary input axle (1) → double clutch (2) → hollow input shaft (4) → low speed gear (8) → second low speed driven gear (36) → second jack shaft (7) → second driving gear (27) → second idle pulley (the 26) → driven gear that reverses gear (24) → first synchronizer (the 25) → output shaft (6) that reverses gear that reverses gear.
Referring to Fig. 5, the power transmission path of reversing gear at a high speed: power is inputted from primary input axle (1), after high gear (9), be divided into two power streams from the first high speed driven gear (11) and the second high speed driven gear (35) respectively, to the follower that reverses gear (24) interflow until output.Specifically be divided into:
Article 1, power bang path: power → primary input axle (1) → double clutch (2) → solid input shaft (3) → high gear (9) → first high speed driven gear (11) → first jack shaft (5) → first driving gear (22) → first idle pulley (the 23) → driven gear that reverses gear (24) → first synchronizer (the 25) → output shaft (6) that reverses gear that reverses gear;
Article 2 power bang path: power → primary input axle (1) → double clutch (2) → solid input shaft (3) → high gear (9) → second high speed driven gear (35) → second jack shaft (7) → second driving gear (27) → second idle pulley (the 26) → driven gear that reverses gear (24) → first synchronizer (the 25) → output shaft (6) that reverses gear that reverses gear.
Claims (3)
1. the speed changer with the two jack shafts of two clutches, comprises primary input axle (1), output shaft (6), the first jack shaft (5), the second jack shaft (7) and double clutch (2), on described output shaft (6), empty set is provided with five gear driven gears (12) successively, four gear driven gears (14), three gear driven gears (17), two gear driven gears (20), one gear driven gear (21) and the driven gear that reverses gear (24), wherein the output shaft (6) between five gear driven gears (12) and four gear driven gears (14) is provided with the 3rd synchronizer (33), output shaft (6) between three gear driven gears (17) and two gear driven gears (20) is provided with the second synchronizer (30), output shaft (6) between one gear driven gear (21) and the driven gear that reverses gear (24) is provided with the first synchronizer (25), on described the first jack shaft (5), be fixed with successively the first low speed driven gear (10), the first high speed driven gear (11), the one or five gear driving gear (13), the one or four gear driving gear (15), the one or three gear driving gear (16), the one or two gear driving gear (18), the one one gear driving gear (19) and first driving gear (22) that reverses gear, on described the second jack shaft (7), be fixed with successively the second low speed driven gear (36), the second high speed driven gear (35), the two or five gear driving gear (34), the two or four gear driving gear (32), the two or three gear driving gear (31), the two or two gear driving gear (29), the 21 gear driving gear (28) and second driving gear (27) that reverses gear, wherein the one or five gear driving gear (13), the two or five gear driving gear (34) respectively with five gear driven gear (12) engagements, the one or four gear driving gear (15), the two or four gear driving gear (32) respectively with four gear driven gear (14) engagements, the one or three gear driving gear (16), the two or three gear driving gear (31) respectively with three gear driven gear (17) engagements, the one or two gear driving gear (18), the two or two gear driving gear (29) respectively with two gear driven gear (20) engagements, the one one gear driving gear (19), the 21 gear driving gear (28) respectively with one gear driven gear (21) engagement, first reverses gear driving gear (22) by first idle pulley (23) and the driven gear that reverses gear (24) engagement of reversing gear, second reverses gear driving gear (27) by second idle pulley (26) and the driven gear that reverses gear (24) engagement of reversing gear, it is characterized in that: the output terminal of described primary input axle (1) is connecting the sheet support arm of double clutch (2), the opposite side of solid input shaft (3) is provided with high gear (9), described high gear (9) respectively with the first high speed driven gear (11), the second high speed driven gear (35) engagement, solid input shaft (3) overhead is arranged with hollow input shaft (4), one end of described hollow input shaft (4) is connected with the sheet inner support of double clutch (2), and the other end is provided with low speed gear (8), described low speed gear (8) respectively with the first low speed driven gear (10), the second low speed driven gear (36) engagement, described solid input shaft (3), hollow input shaft (4) and output shaft (6) are coaxial, and corresponding moving cooperation of the inner of the other end of solid input shaft (3) and output shaft (6).
2. the speed changer with the two jack shafts of two clutches according to claim 1, it is characterized in that: the other end of the solid input shaft (3) corresponding with the inner of output shaft (6) is sleeve pipe, and the inner of output shaft (6) is plugged in the sleeve pipe of solid input shaft (3).
3. the speed changer with the two jack shafts of two clutches according to claim 1, is characterized in that: between described the 3rd synchronizer (33), the second synchronizer (30), the first synchronizer (25) and output shaft (6), be involute splines and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420116150.4U CN203743329U (en) | 2014-03-14 | 2014-03-14 | Transmission provided with double clutches and double countershafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420116150.4U CN203743329U (en) | 2014-03-14 | 2014-03-14 | Transmission provided with double clutches and double countershafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743329U true CN203743329U (en) | 2014-07-30 |
Family
ID=51343132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420116150.4U Withdrawn - After Issue CN203743329U (en) | 2014-03-14 | 2014-03-14 | Transmission provided with double clutches and double countershafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867656A (en) * | 2014-03-14 | 2014-06-18 | 合肥工业大学 | Transmission with two clutches and two intermediate shafts |
| CN110017358A (en) * | 2019-04-23 | 2019-07-16 | 合肥工业大学 | A kind of three fast electric automobile gear devices of exportable large transmission ratio |
-
2014
- 2014-03-14 CN CN201420116150.4U patent/CN203743329U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867656A (en) * | 2014-03-14 | 2014-06-18 | 合肥工业大学 | Transmission with two clutches and two intermediate shafts |
| CN103867656B (en) * | 2014-03-14 | 2016-08-03 | 合肥工业大学 | There is the variator of the double jackshaft of double clutch |
| CN110017358A (en) * | 2019-04-23 | 2019-07-16 | 合肥工业大学 | A kind of three fast electric automobile gear devices of exportable large transmission ratio |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20160803 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |