CN203413049U - Transmission mechanism for multi-speed speed changer - Google Patents
Transmission mechanism for multi-speed speed changer Download PDFInfo
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- CN203413049U CN203413049U CN201320454208.1U CN201320454208U CN203413049U CN 203413049 U CN203413049 U CN 203413049U CN 201320454208 U CN201320454208 U CN 201320454208U CN 203413049 U CN203413049 U CN 203413049U
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Abstract
The utility model discloses a transmission mechanism for a multi-speed speed changer. The transmission mechanism comprises a first clutch, a corresponding first input shaft, a second clutch, a corresponding second input shaft, a plurality of synchronizers, a first double-row planet gear train and a second double-row planet gear train, wherein one of the first double-row planet gear train and the second double-row planet gear train consists of a front planet row and a back planet row; in the front planet row, a front sun wheel and a back planet carrier are connected into a whole and are fixed together with a shell through a first normally engaged synchronizer or a clutch; the back planet row is of a double-planet gear structure; a front gear ring and a back gear ring are connected into a whole; power can be transmitted to a back sun wheel or a back gear ring through a second synchronizer or a third synchronizer or the clutch after passing through a first back outer shaft and is output by the front planet carrier. According to the transmission mechanism, the combination of a CR-CR-type gear speed changing mechanism and a novel double-planet row gear speed changing mechanism is adopted, and two clutches and a plurality of synchronizers are matched to realize the gear shifting performance of a double-clutch speed changer; moreover, the size of the speed changer can be reduced; meanwhile, the gear shifting smoothness is improved.
Description
Technical field
The utility model relates to automotive transmission technical field, specifically relates to a kind of multi-speed transmission driving mechanism.
Background technique
Automotive transmission driving mechanism is different by train pattern used, has two kinds of axis jointing type speed changer (parallel shaft transmission) and axis rotary speed gears (planetary transmission).By the quantity of clutch, can be divided into single clutch speed changer and double-clutch speed changer.The power-transmitting unit of the double-clutch speed changer of application is parallel shaft transmission at present, power transmission is divided into two lines, the one, odd number shelves transfer route, the 2nd, even number shelves transfer route, article two, power transmission line connects first, second input shaft by first, second clutch respectively, by the driving gear on the driven shaft corresponding with two input shafts, output power again, double-clutch speed changer controls by the coordination of two clutches and each synchronizer is controlled, can realize transmission ratio in the situation that not cutting off power, thereby shorten shift time.Yet parallel-axis type double-clutch speed changer must adopt independent reverse gear shaft and reverse gear.When adopting an output shaft, speed changer axial dimension is large; While adopting two output shafts, speed changer radial dimension is large, takes up room large, is unfavorable for the topology layout design of automobile.At present the double-clutch speed changer forward gears of application adopts 7 grades at most, and most widely used is six grades, and speed ratio changes greatly, like this during gear shift engine speed variation greatly, make automobile power character, economical be not very desirable, smoothness is poor.
Model utility content
The technical problems to be solved in the utility model is, provides that a kind of structure is more compact by the multi-speed transmission driving mechanism of brand new, reduces the axial and radial dimension of speed changer, and the gear that simultaneously advances can be more, to overcome the deficiencies in the prior art.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of multi-speed transmission driving mechanism, comprise the first clutch and the first corresponding input shaft, the second clutch and the second corresponding input shaft, a plurality of synchronizers, output shaft, the sheathed setting of described first and second input shaft, also comprise first, second double planetary gear train, intermeshing the first gear and the second gear and the 3rd gear and the 4th gear; One of them double planetary gear train of described first, second double planetary gear train is comprised of front and back two rows of planetary rows, and in front planet row, front sun gear is connected with rear planet carrier, by the first normal synchronizer or clutch and housing of meshing, fixes; Rear planet row adopts dual planetary gear structure, and front ring gear is connected with rear gear ring, power can by the second synchronizer or the 3rd synchronizer or clutch outer shaft after first be delivered to rear sun gear or after gear ring, and exported by front planet carrier; One of them double planetary gear train of described first, second double planetary gear train adopts CR-CR formula gear shift, two rows of planetary rows before and after comprising, in front planet row, front ring gear is connected by synchronizer or clutch with rear planet carrier, front planet carrier is connected and is connected as power and exports with output shaft with rear gear ring, power is inputted by front sun gear, or is input on rear sun gear or rear planet carrier by synchronizer or clutch.
Described the first gear is connected with the planet carrier of the front planet row of described the first double planetary gear train, and the front planet carrier of described the second double planetary gear train is connected with rear gear ring and the second gear; The rear sun gear of described the second double planetary gear train is connected with the second external axle sleeve, and the rear planet carrier of described the second double planetary gear train is connected with axle sleeve in the middle of second.
The described first normal engagement synchronizer is located between the first front external axle sleeve of double planetary gear train first and housing, the second synchronizer is arranged between the rear gear ring and the 3rd synchronizer of the first double planetary gear train, and described the 3rd synchronizer is arranged between the first rear external axle sleeve and the second input shaft.
The 5th synchronizer is arranged between the rear planet carrier and the second external axle sleeve of the second double planetary gear train, the described second normal engagement synchronizer is arranged between the front ring gear and rear planet carrier of the second double planetary gear train, and the 6th synchronizer is arranged between the 7th synchronizer and the second external axle sleeve of the second double planetary gear train.The 7th synchronizer is arranged between the second middle axle sleeve of the 4th gear and the second double planetary gear train.
Described the first double planetary gear train adopts CR-CR formula gear shift, two rows of planetary rows before and after comprising, in front planet row, front ring gear is connected by synchronizer or clutch with rear planet carrier, front planet carrier is connected and is connected as power and exports with output shaft with rear gear ring, power is inputted by front sun gear, or is input on rear sun gear or rear planet carrier by synchronizer or clutch.
Two clutch components are arranged on the right side of the first double planetary gear train, and output shaft is arranged on the first double planetary gear train and with two clutch components at same axis.
The first gear or the second gear and the engagement of main reducing gear driven gear, main reducing gear driven gear connected with differential.
Compared with prior art, the utlity model has following advantage: the utility model is on the basis of existing dual-clutch transmission, by adopting the combination of CR-CR formula gear shift and novel double-row star row gear shift, and coordinate two clutches, a plurality of synchronizers use, make it both can reach with few gear logarithm realize more the object of multiple gear ratios gear, can realize the shift property of dual-clutch transmission again, and can reduce the axial and radial dimension of speed changer, make the size of speed changer controlled, vehicle structure layout design is more flexible, owing to reducing production costs.Simultaneously Transmission gear increases, and speed ratio changes less, and engine speed changes littlely during gear shift like this, makes the power character, economical all more satisfactory of automobile, and while gear shift smoothness is improved.
Accompanying drawing explanation
Fig. 1 is the utility model double-clutch speed changer the first embodiment's power-transmitting unit schematic diagram;
Fig. 2 is the utility model the second embodiment's power-transmitting unit schematic diagram;
Fig. 3 is the structural representation that the output form of the utility model double-clutch speed changer changes.
Embodiment
The double planetary gear train of the utility model first and the second double planetary gear train adopt CR-CR formula gear shift or novel double-row star row gear shift.By combination, can obtain multiple transmission scheme.
Below, in conjunction with Figure of description and specific embodiment, the technical solution of the utility model is further described, should be appreciated that specific embodiment described herein, only in order to explain the utility model, does not form restriction of the present utility model.
The first embodiment (seven grades)
Referring to Fig. 1, double clutch of the present utility model comprises that two clutch components 1 (comprise first clutch 2 and second clutch 3, distinguish the first input shaft 4, the double planetary gear train 182 of the double planetary gear train 181, second of the second input shaft 5, the first, output shaft 8 and a plurality of synchronizer of corresponding two clutches.The first double planetary gear train and the second double planetary gear train are with upper and lower structural configuration, the first double planetary gear train adopts novel double-row star row gear shift, the second double planetary gear train adopts CR-CR formula gear shift, the first double planetary gear train comprises the first planet row X1 and the second planet row X2, and the second double planetary gear train comprises third planet row X3 and fourth planet row X4.
The front sun gear 105 of the first double planetary gear train, rear planet carrier 106 are connected with the first front external axle sleeve 115, front ring gear 103 is connected with rear gear ring 107, front planet carrier 102 is connected with the first gear 161, rear planet row X2 adopts dual planetary gear structural type, layman's star-wheel 108 and expert's star-wheel 109 are intermeshing, and rear sun gear 110 is connected with the first rear external axle sleeve 114.
The front sun gear 134 of the second double planetary gear train is connected with the second jack shaft 143 and the 4th gear 164, and front planet carrier 131 is connected with rear gear ring 136 and the second gear 162.Rear sun gear 139 is connected with the second external axle sleeve 145.Rear planet carrier 140 is connected with axle sleeve 144 in the middle of second.Front ring gear 132 and rear planet carrier 140 can be by synchronizer 135(or clutches) be connected.Front planet carrier 131 is connected and is connected as power and exports with output shaft with rear gear ring 136.Power is by 134 inputs of front sun gear, also can be by synchronizer 141(or clutch) or synchronizer 142(or clutch) be input to rear sun gear or planet carrier afterwards.This gear shift can be realized 4 forward gearss and 1 reverse gear.
First input shaft 4 the other ends are connected with the 3rd gear 163, the three gears 163 and the 4th gear 164 engagements, the first gear 161 and the second gear 162 engagements, and the second gear 162 is connected with output shaft 8, and output shaft 8 and double clutch assembly 1 are in the same side.
The first normal engagement synchronizer 101 is located between the first front external axle sleeve 115 of double planetary gear train 181 first and housing, and the second synchronizer (fourth gear synchronizer 112) is arranged between the rear gear ring 107 and the 3rd synchronizer (two, six grades of synchronizers 113) of the first double planetary gear train 181.The 3rd synchronizer (two, six grades of synchronizers 113) is arranged between the first rear external axle sleeve 114 and the second input shaft 5.
The second normal engagement synchronizer 135 is located between the second double planetary gear train 182 front ring gears 132 and rear planet carrier 140, and the 5th synchronizer (, third gear synchronizer 137) is arranged between the rear planet carrier 140 and the second external axle sleeve 145 of the second double planetary gear train 182.The 6th synchronizer (reversing-gear synchronizer 141) is arranged between the 7th synchronizer 142 and the second external axle sleeve 145 of the second double planetary gear train 182.The 7th synchronizer (five, seven grades of synchronizers 142) is arranged between the second middle axle sleeve 144 of the 4th gear 164 and the second double planetary gear train 182.
The double-clutch speed changer of the present embodiment can be realized seven fast forward gearss and a fast reverse gear.The first double planetary gear train 181 is realized two, four, six gears and is controlled.The second double planetary gear train 182 is realized one, three, five, seven grade and reverse gear and is controlled.
Action at each gear synchronizer and clutch is as follows:
During neutral state, as shown in Figure 1, the first normal engagement synchronizer 101 links together the front external axle sleeve 115 of the first double planetary gear train first to maintain static with housing, and the second normal engagement synchronizer 135 links together the second double planetary gear train front ring gear 132 with rear planet carrier 140.One, third gear synchronizer 137 mediates, fourth gear synchronizer 112 and two, six grades of synchronizers 113 and five, seven grades of synchronizers 142 and reversing-gear synchronizer 141 on right side in jointing state not.
One grade: one, third gear synchronizer 137 moves to left, rear planet carrier 140 in the second double planetary gear train 182 and the second normal engagement synchronizer 135 and the second double planetary gear train front ring gear 132 are connected and fixed and are not rotated, and such the second double planetary gear train 182 forms restriction relations.First clutch 2 engages simultaneously.Power passes to the first input shaft 4, the three gear 183, the four gears 184 through first clutch 2, then arrives output shaft through the second double planetary gear train 182.Now second clutch 3 is in separated state, the position of all the other synchronizers when neutral state.
Second gear: two, six grades of synchronizers 113 move to left, is connected the first rear external axle sleeve 114 with the second input shaft 5, such the first double planetary gear train 181 forms restriction relation.First clutch 2 separation, second clutch 3 engages simultaneously, and power passes to the second input shaft 5 through first clutch 2, through the first double planetary gear train 182, the first gear 161, the second gears 162, then is exported by output shaft 8.
Third gear: one, third gear synchronizer 137 moves to right, connects the second external axle sleeve 145, thereby also the rear sun gear of the second double planetary gear train 139 is connected motionless.Second clutch 3 separation, first clutch 2 engages, and realizes third gear transmission of power.
Fourth gear: fourth gear synchronizer 112 moves to left, is connected rear gear ring 107 with two, six grades of synchronizers 113.First clutch 2 separation, second clutch 3 engages, and realizes fourth gear transmission of power.
Five grades: five, seven grades of synchronizers 142 move to left, the 4th gear 184 is connected with axle sleeve 144 in the middle of second.Second clutch 3 separation, first clutch 2 engages, and realizes five grades of transmission of power.
Six grades: the first normal engagement synchronizer 101 moves to right, and two, six grades of synchronizers 113, fourth gear synchronizers 112 move to left simultaneously.First clutch 2 separation, second clutch 3 engages, and realizes six grades of shelves transmission of power.
Seven grades: five, seven grades of synchronizers 142 move to left, the 4th gear 184 is connected with axle sleeve 144 in the middle of second, the second normal engagement synchronizer 135 moves to right, make the second double planetary gear train front ring gear 132 separated with rear planet carrier 140 disengagements, while one, third gear synchronizer 137 move to right, and the second external axle sleeve 145 is fixing.Second clutch 3 separation, first clutch 2 engages, and realizes seven grades of transmission of power.
Reverse gear: reversing-gear synchronizer 141 moves to left, is connected the second external axle sleeve 145 with five, seven grades of synchronizers 142, and one, third gear synchronizer 137 moves to left, the rear planet carrier in the second double planetary gear train 182 140 is connected and do not rotated.Second clutch 3 separation, first clutch 2 engages, and realizes reverse gear transmission of power.
Double-clutch speed changer in this model utility can be realized multiple transforming gear pattern:
Order shift mode:
Order upgrade, take one grade be raised to second gear as example, before shifting commands sends, speed changer is in a gear working state.Prepare to implement to need in advance two, six grades of synchronizers 113 to be moved to left the first rear external axle sleeve 114 is connected with the second input shaft 5 before gearshift, now first clutch 2 and second clutch 3 are still respectively in engaging and separated state.When control system is sent shifting commands and is raised to second gear by one grade, all synchronizer hold modes are motionless, first clutch 2 is progressively separated, second clutch 3 progressively engages simultaneously, until first clutch 2 is completely separated, second clutch 3 engages completely, and control one, third gear synchronizer 137 gets back to neutral position, make the second double planetary gear train front ring gear 132 unfettered, the irrelevant synchronizer of all the other and a grade and second gear is also failure to actuate.The order of other gears upgrades and order lowers category also knows by inference with same method.
Jump shift mode:
Odd gear is changed to the jump lifting shelves of even number gear, be raised to fourth gear or seven grades and drop to fourth gear etc. as one grade, even number gear is changed to the jump lifting shelves of odd gear, upgrade five grades or six grades and drop to third-class as two, its gear changing mode is the same with the controlling method that order upgrades, and can use the same method and know by inference.
The jump that odd gear is changed to odd gear upgrades, take one grade rise third gear as example, before shifting commands sends, speed changer is in a gear working state.Prepare to implement before gearshift, first clutch 2 separation, one, third gear synchronizer 137 first gets back to neutral position, then move to right the rear sun gear of the second double planetary gear train 139 is connected motionless.First clutch 2 is rejoined, and completes one grade of control that rises third gear.In this process, second clutch 3 is always in separated state, and the irrelevant synchronizer of all the other and a grade and third gear is also failure to actuate.The jump that the jump lifting shelves that the jump that odd gear is changed to odd gear lowers category and even number gear is changed to even number gear and odd gear the are changed to odd gear controlling method that upgrades is the same, can use the same method and know by inference.
The setting of each gear velocity ratio can be by each planet row a value (a equal planet row the ratio of the gear ring number of teeth and the sun gear number of teeth), the velocity ratio a of the first gear 161 and the second gear 162 and the 3rd gear 163 and the 4th gear 164 velocity ratio a set.For example establish the first double planetary gear train and comprise the first planet row X1 and the second planet row X2, the second double planetary gear train comprises that a value of third planet row X3 and fourth planet row X4 is respectively a2.1, a2.1, a3.3, a3.3, a1.06, a1.23, obtains the action of each gear velocity ratio shown in table 1, ratio level and gear shift executive component.From numerical value, the velocity ratio of each gear, more appropriate rationally than level, obtains good gear ratio characteristic.
the action schedule of table 1 gear shift executive component, each grade of transmission are when than level figure
Note: " zero " represents that clutch engages or synchronizer action.
The second embodiment (six grades)
Referring to Fig. 2, on the first embodiment's basis, by the location swap of the first double planetary gear train and the second double planetary gear train, cancel the second normal engagement synchronizer 135, two clutch components 1 are arranged on the first double planetary gear train 181 right sides, and output shaft 8 is arranged on the first double planetary gear train 181 with two clutch components 1 at same axis and at homonymy not.The velocity ratio that needs appropriate change the first gear 161 and the second gear 162, the 3rd gear 163 and the 4th gear 164 is set according to gear velocity ratio, and a value of each planet row.Such the first double planetary gear train 181 is realized 1.3.5 and reverse gear, and the second double planetary gear train 182 is realized 2.4.6 shelves.
From embodiment above, output shaft 8 can change with the position relationship of two clutch components 1, when being arranged on the second double planetary gear train 182, output shaft 8 can be placed on not homonymy and the same side with two clutch components 1, when homonymy not, output shaft 8 both can also can be at different axis at same axis from two clutch components 1, and when the same side, output shaft 8 can only be from two clutch components 1 at different axis.Can only be at homonymy not when output shaft 8 is arranged on the first double planetary gear train 181, but same output shaft 8 can also can be at different axis at same axis from two clutch components 1.Odd number shelves or even number shelves can be arranged on the first double planetary gear train 181 also can be at the second double planetary gear train 182.By permutation and combination, obtain 10 kinds of transmission schemes thus, referring to table 2.
table 2 CR-CR formula gear shift and novel double-row star row gear shift combination transmission scheme
In addition, in all transmission modes, two clutch components and output shaft can suitably change in the output form of the same side, referring to Fig. 3, reduce the first gear 161 and the second gear 162 diameters, two gears and main reducing gear driven gear 190 directly mesh, and by the external outputting power of differential mechanism 191.
Claims (7)
1. a multi-speed transmission driving mechanism, comprise the first clutch and the first corresponding input shaft, the second clutch and the second corresponding input shaft, a plurality of synchronizers, output shaft, the sheathed setting of described first and second input shaft, also comprises first, second double planetary gear train, intermeshing the first gear and the second gear and the 3rd gear and the 4th gear; It is characterized in that: one of them double planetary gear train of described first, second double planetary gear train is comprised of front and back two rows of planetary rows, in front planet row, front sun gear is connected with rear planet carrier, by the first normal synchronizer or clutch and housing of meshing, fixes; Rear planet row adopts dual planetary gear structure, and front ring gear is connected with rear gear ring, power can by the second synchronizer or the 3rd synchronizer or clutch outer shaft after first be delivered to rear sun gear or after gear ring, and exported by front planet carrier; Another double planetary gear train of described first, second double planetary gear train adopts CR-CR formula gear shift, two rows of planetary rows before and after comprising, in front planet row, front ring gear is connected by synchronizer or clutch with rear planet carrier, front planet carrier is connected and is connected as power and exports with output shaft with rear gear ring, power is inputted by front sun gear, or is input on rear sun gear or rear planet carrier by synchronizer or clutch.
2. multi-speed transmission driving mechanism according to claim 1, it is characterized in that: described the first gear is connected with the planet carrier of the front planet row of described the first double planetary gear train, the front planet carrier of described the second double planetary gear train is connected with rear gear ring and the second gear; The rear sun gear of described the second double planetary gear train is connected with the second external axle sleeve, and the rear planet carrier of described the second double planetary gear train is connected with axle sleeve in the middle of second.
3. multi-speed transmission driving mechanism according to claim 2, it is characterized in that: the described first normal engagement synchronizer is located between the first front external axle sleeve of double planetary gear train first and housing, the second synchronizer is arranged between the rear gear ring and the 3rd synchronizer of the first double planetary gear train, and described the 3rd synchronizer is arranged between the first rear external axle sleeve and the second input shaft.
4. multi-speed transmission driving mechanism according to claim 3, it is characterized in that: the 5th synchronizer is arranged between the rear planet carrier and the second external axle sleeve of the second double planetary gear train, the described second normal engagement synchronizer is arranged between the front ring gear and rear planet carrier of the second double planetary gear train, and the 6th synchronizer is arranged between the 7th synchronizer and the second external axle sleeve of the second double planetary gear train; The 7th synchronizer is arranged between the second middle axle sleeve of the 4th gear and the second double planetary gear train.
5. multi-speed transmission driving mechanism according to claim 1, it is characterized in that: described the first double planetary gear train adopts CR-CR formula gear shift, two rows of planetary rows before and after comprising, in front planet row, front ring gear is connected by synchronizer or clutch with rear planet carrier, front planet carrier is connected and is connected with output shaft as power output with rear gear ring, and power is inputted by front sun gear, or is input on rear sun gear or rear planet carrier by synchronizer or clutch.
6. multi-speed transmission driving mechanism according to claim 5, is characterized in that: two clutch components are arranged on the right side of the first double planetary gear train, and output shaft is arranged on the first double planetary gear train and with two clutch components at same axis.
7. according to the arbitrary described multi-speed transmission driving mechanism of claim 1 to 6, it is characterized in that: the first gear or the second gear and the engagement of main reducing gear driven gear, main reducing gear driven gear connected with differential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320454208.1U CN203413049U (en) | 2013-07-27 | 2013-07-27 | Transmission mechanism for multi-speed speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320454208.1U CN203413049U (en) | 2013-07-27 | 2013-07-27 | Transmission mechanism for multi-speed speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203413049U true CN203413049U (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320454208.1U Withdrawn - After Issue CN203413049U (en) | 2013-07-27 | 2013-07-27 | Transmission mechanism for multi-speed speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203413049U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438164A (en) * | 2013-07-27 | 2013-12-11 | 顺德职业技术学院 | Multi-speed gearbox transmission mechanism |
| CN106246850A (en) * | 2015-06-15 | 2016-12-21 | Avl里斯脱有限公司 | Multi-speed transmission |
| CN106461030A (en) * | 2014-05-09 | 2017-02-22 | 腓特烈斯港齿轮工厂股份公司 | Device for switching a first and second switching element, and transmission comprising such a device |
-
2013
- 2013-07-27 CN CN201320454208.1U patent/CN203413049U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438164A (en) * | 2013-07-27 | 2013-12-11 | 顺德职业技术学院 | Multi-speed gearbox transmission mechanism |
| CN106461030A (en) * | 2014-05-09 | 2017-02-22 | 腓特烈斯港齿轮工厂股份公司 | Device for switching a first and second switching element, and transmission comprising such a device |
| CN106461030B (en) * | 2014-05-09 | 2019-01-08 | 腓特烈斯港齿轮工厂股份公司 | For switching the switching equipment of the first and second switching elements and the speed changer with such equipment |
| CN106246850A (en) * | 2015-06-15 | 2016-12-21 | Avl里斯脱有限公司 | Multi-speed transmission |
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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: 20140129 Effective date of abandoning: 20151223 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |