CN202165553U - Automatic transmission with eight forward gears and one reverse gear - Google Patents
Automatic transmission with eight forward gears and one reverse gear Download PDFInfo
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- CN202165553U CN202165553U CN2011202281092U CN201120228109U CN202165553U CN 202165553 U CN202165553 U CN 202165553U CN 2011202281092 U CN2011202281092 U CN 2011202281092U CN 201120228109 U CN201120228109 U CN 201120228109U CN 202165553 U CN202165553 U CN 202165553U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 239000012530 fluid Substances 0.000 claims description 21
- 239000000446 fuel Substances 0.000 abstract description 4
- 230000001133 acceleration Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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Abstract
The utility model discloses an automatic transmission with eight forward gears and one reverse gear, which comprises a Ravigneaux planetary system structure, a single planetary line, an additional clutch and an auxiliary brake, wherein the single planetary line is arranged between a dual-planetary line tooth ring and an output toothed wheel of the Ravigneaux planetary system structure; a single planetary line sun wheel is in splined connection with the dual-planetary line tooth ring, and a planetary carrier of the single planetary line is in splined connection with the output toothed wheel; the additional clutch is arranged between the dual-planetary line tooth ring of the Ravigneaux planetary system or the single planetary line sun wheel and a single planetary line tooth ring, and two hubs of the clutch are respectively connected with the dual-planetary line tooth ring or the single planetary line sun wheel and the single planetary line tooth ring; and the auxiliary brake is arranged between the dual-planetary line tooth ring and the output toothed wheel of the Ravigneaux planetary system and is connected with the single planetary line tooth ring. The speed ratio is denser, a vehicle can run on the more reasonable gear, the engine speed is reduced, the fuel consumption is reduced, the own acceleration amplitude is increased, and the gear quality among the low gears is improved. The automatic transmission is suitable for a variety of vehicles with preposed front drives and transversally-arranged power assemblies.
Description
Technical field
The utility model relates to a kind of transmission for vehicles, and specifically a kind of have an automatic transmission that 8 forward gears 1 reverse gear.
Background technique
Present vehicular automatic transmission; Mainly contain hydraulic mechanical type automatic transmission (AT), mechanical continuously-variable transmission (CVT) and electric control mechanical type automatic speed variator several kinds of forms such as (AMT), however undeniable be that the comprehensive advantage of reliability, serviceability, travelling comfort on traditional AT structure remains the other technologies short time and can't catch up with.8AT even 9AT are just expedited the emergence of under such background; Even if its volume is huge many than 4AT, 5AT; But have more nearly one times ultimate attainment smooth-going and outstanding power performance that gear brought, the bumper harvests of economic performance, make ancient AT gearbox still enjoy favor.
4AT automatic transmission gear is less, can not give full play to engine power performance, and fuel consume is higher.Like GWM 4AT La Weina planetary system structure, can be according to riving condition and driver's driving habits, between economical and power type gear shifting characteristic curve, come the choose reasonable shifting points according to the opening speed of closure, fully to satisfy driver's individual character requirement.But GWM 4AT has only 4 forward gears, and its adjacent gear ratios differs bigger, and shift process has slight impact.It is simple and compact for structure for the La Weina planetary system, saves the space.
Summary of the invention
The technical problem that the utility model will solve; Provide a kind of automatic transmission that 8 forward gears 1 reverse gear that has; Be on the basis of existing GWM 4AT La Weina planetary system structure, to increase by a single planet row; And increase a clutch and a break, thereby realize having 8 forward gears and 1 purpose of reversing gear.Owing to increased gear, the speed ratio of this speed changer is closeer, can make vehicle more reasonably going on the gear, has reduced engine speed, thereby reduces fuel consume; Automatic transmission case has been because there has been higher overall gear ratio, thereby improved the accekeration of self.Because gear spacing shorter (especially keeping off two retainings), thereby, can improve the gear quality between the low gear for vehicle provides acceleration faster from one.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is:
A kind of have an automatic transmission that 8 forward gears 1 reverse gear; Comprise La Weina planetary system structure, single planet row, extra clutch and additional brake; Said single planet row is located between the double planet wheel rows of mixing gear ring and output gear of La Weina planetary system structure; The single planetary row sun gear is connected with double planet wheel rows of mixing gear ring spline, single planetary row planet carrier and output gear splined; Extra clutch is located between the double planet wheel rows of mixing gear ring or single planetary row sun gear and single planetary row gear ring of La Weina planetary system structure; Clutch two hubs connect respectively at double planet wheel rows of mixing gear ring or single planetary row sun gear and single planetary row gear ring, connect between the double planet wheel rows of mixing gear ring that additional brake is located at La Weina planetary system structure and the output gear and with the single planetary row gear ring.
As specializing of the utility model; Said automatic transmission comprises input shaft; Be provided with fluid torque converter, oil pump to a left side from the right side on the input shaft with being separated by successively; The connection hub of first clutch, second clutch, first clutch, the interior hub of second clutch, output gear, single planetary row, additional brake, extra clutch, La Weina planetary system structure, first break, overrunning clutch, second break, three-clutch, wherein:
Input shaft is connected with transformer turbine, the outer hub spline of three-clutch; Connect firmly with first clutch, the outer hub of second clutch;
Preceding sun gear, rear sun gear are connected with input shaft through sliding bearing (lining);
The interior hub of second clutch is connected with preceding sun gear spline; The connection hub of first clutch is connected with the planet carrier spline;
Hub, the interior hub of second break connect firmly in rear sun gear and the three-clutch; Hub combines as a whole and is connected with single planetary row sun gear spline in double planet wheel rows of mixing gear ring and the extra clutch, and single planetary row sun gear and the preceding sun gear of double planet wheel rows of mixing are in radially being connected through sliding bearing; Output gear wheel hub outer ring connects the two interference fit with two-row ball bearing inner ring on being located at housing.
The matching relationship of above-mentioned parts is: preceding sun gear often meshes with short planet wheel; Short planet wheel often meshes with long planet wheel; Often mesh with duration planet wheel and rear sun gear, long planet wheel and double planet wheel rows of mixing gear ring often mesh, and single planetary row sun gear and single planetary row planet wheel often mesh; Single planetary row planet wheel and single planetary row gear ring often mesh, and planet wheel shaft fixes on the single planetary row planet carrier; Output gear and output shaft continuously-meshing gear often mesh, and the output shaft constant mesh gear is connected with the output shaft spline.
The automatic transmission of the said structure that the utility model provided; Compared with prior art; The technological progress that is obtained is: it is on the basis of existing GWM 4AT La Weina planetary system structure, to increase by a single planet row; And increase a clutch and a break, thereby realize having 8 forward gears and a purpose of reversing gear; Greatly reduced the speed changer longitudinal size, arranged for car load and practiced thrift very large space; Owing to increased gear, the speed ratio of this speed changer is closeer, can make vehicle more reasonably going on the gear, has reduced engine speed, thereby reduces fuel consume; Automatic transmission case has been because there has been higher overall gear ratio, thereby improved the accekeration of self, and every gear adopts three control units controls, and most shift processes only need two control units actions to accomplish, and its shift process is smooth-going; Because gear spacing shorter (especially keeping off two retainings), thereby, can improve the gear quality between the low gear for vehicle provides acceleration faster from one.Originally be applicable to that various preposition forerunners, power assembly are horizontal vehicle, as 8 gear speed change gears.
The utility model below will combine Figure of description and specific embodiment to do further explain.
Description of drawings
Fig. 1 is the utility model embodiment's an overall structure schematic representation;
Fig. 2 is the radial position relationship schematic representation of middle input shaft embodiment illustrated in fig. 1, jack shaft and differential mechanism.
Among the figure: 2-input shaft, 3-turbine, 4-guide wheel, 5-pump impeller, 6-second clutch; 7-first clutch, the connection hub of 8-first clutch, 9-additional brake, 10-extra clutch, 11-the first break; 12-overrunning clutch, 13-double planet wheel rows of mixing planet carrier, 14-the second break, 15-the three-clutch, 16-preceding sun gear; 17-short planet wheel, 18-rear sun gear, 19-long planet wheel, 20-double planet wheel rows of mixing gear ring, 21-single planetary row sun gear; 22-single planetary row planet wheel, 23-single planetary row planet carrier, 24-single planetary row gear ring, 25-output gear; 26-output shaft, 27-output shaft continuously-meshing gear, 28-differential mechanism, the interior hub of 29-second clutch.
Embodiment
Embodiment
Shown in Figure 1 is a kind of automatic transmission that 8 forward gears 1 reverse gear that has; Comprise La Weina planetary system structure, single planet row, extra clutch and additional brake; Said single planet row is located between the double planet wheel rows of mixing gear ring and output gear of La Weina planetary system structure; The single planetary row sun gear is connected with double planet wheel rows of mixing gear ring spline, single planetary row planet carrier and output gear splined; Extra clutch is located between the double planet wheel rows of mixing gear ring or single planetary row sun gear and single planetary row gear ring of La Weina planetary system structure; Clutch two hubs connect respectively at double planet wheel rows of mixing gear ring or single planetary row sun gear and single planetary row gear ring, connect between the double planet wheel rows of mixing gear ring that additional brake is located at La Weina planetary system structure and the output gear and with the single planetary row gear ring.Particularly:
Automatic transmission comprises input shaft 2; Be provided with fluid torque converter, oil pump to a left side from the right side on it with being separated by successively; The connection hub 8 of first clutch 7, second clutch 6, first clutch 7, the interior hub 29 of second clutch 6, output gear 25, single planetary row, additional brake 9, extra clutch 10, La Weina planetary system structure, first break 11, overrunning clutch 12, second break 14, three-clutch 15, wherein:
Preceding sun gear 16, rear sun gear 18 are connected with input shaft 2 through sliding bearing (lining);
The interior hub 29 of second clutch 6 is connected with preceding sun gear 16 splines; The connection hub 8 of first clutch is connected with planet carrier 13 splines; Whether first clutch 7 control planet carriers 13 are power input part, and whether sun gear 16 is power input part before second clutch 6 controls;
Hub, second break, 14 interior hubs connect firmly in rear sun gear 18 and the three-clutch 15, and whether three-clutch 15 control rear sun gears 18 are power input part, and whether second break, 14 control rear sun gears 18 rotate; Hubs combine as a whole and are connected with single planetary row sun gear 21 splines in double planet wheel rows of mixing gear ring 20 and the extra clutch 10, and single planetary row sun gear 21 and the preceding sun gear 16 of double planet wheel rows of mixing are in radially being connected through sliding bearing; Output gear 25 hub outer rings connect the two interference fit with two-row ball bearing inner ring on being located at housing;
Preceding sun gear 16 often meshes with short planet wheel 17; Short planet wheel 17 often meshes with long planet wheel 19; Often mesh with duration planet wheel 19 and rear sun gear 18, long planet wheel 19 often meshes with double planet wheel rows of mixing gear ring 20, and single planetary row sun gear 21 often meshes with single planetary row planet wheel 22; Single planetary row planet wheel 22 often meshes with single planetary row gear ring 24, and planet wheel shaft fixes on the single planetary row planet carrier 23; Output gear 25 often meshes with output shaft continuously-meshing gear 27, and output shaft constant mesh gear 27 is connected with output shaft 26 splines.
The radial position relationship of present embodiment input shaft, jack shaft, differential mechanism is as shown in Figure 2.
The power transmission process of the utility model is following:
[D1 retaining]
Power is passed to the pump impeller 5 of fluid torque converter by motor, and pump impeller 5 is passed to turbine 3 through fluid power, and turbine 3 is passed to input shaft 2 through spline; Sun gear 16 before passing to by second clutch 6 again; Preceding sun gear 16 is passed to short planet wheel 17, and short planet wheel 17 is passed to long planet wheel 19, and long planet wheel 19 is passed to double planet wheel rows of mixing gear ring 20; Double planet wheel rows of mixing gear ring 20 is passed to single planetary row sun gear 21; Pass to single planetary row planet carrier 23 again, pass to output gear 25, through output shaft 26 and differential mechanism 28 the most at last power pass on the semiaxis.Rear sun gear 18 rotates freely, not transmitting torque.
[D2 retaining]
Power is passed to the pump impeller 5 of fluid torque converter by motor, and pump impeller 5 is passed to turbine 3 through fluid power, and turbine 3 is passed to input shaft 2 through spline; Sun gear 16 before passing to by second clutch 6 again; Preceding sun gear 16 is passed to short planet wheel 17; Short planet wheel 17 is passed to long planet wheel 19 and double planet wheel rows of mixing planet carrier 13, and long planet wheel 19 is passed to double planet wheel rows of mixing gear ring 20 with double planet wheel rows of mixing planet carrier 13, passes to single planetary row sun gear 21 again; Pass to output gear 25 through single planetary row planet carrier 23, through output shaft 26 and differential mechanism 28 the most at last power pass on the semiaxis.
[D3 retaining]
Power is passed to the pump impeller 5 of fluid torque converter by motor, and pump impeller 5 is passed to turbine 3 through fluid power, and turbine 3 is passed to input shaft 2 through spline; Sun gear 16 before passing to by second clutch 6 again; Preceding sun gear 16 is passed to short planet wheel 17; Short planet wheel 17 is passed to long planet wheel 19, and long planet wheel 19 is passed to double planet wheel rows of mixing gear ring 20, and double planet wheel rows of mixing gear ring 20 is passed to single planetary row; Pass to output gear 25 again, through output shaft 26 and differential mechanism 28 the most at last power pass on the semiaxis.Rear sun gear 18 rotates freely, not transmitting torque.
[D4 retaining]
Power is passed to the pump impeller 5 of fluid torque converter by motor, and pump impeller 5 is passed to turbine 3 through fluid power, and turbine 3 is passed to input shaft 2 through spline; Pass to double planet wheel rows of mixing planet carrier 13 and preceding sun gear 16 by first clutch 7 and second clutch 6 again; Long planet wheel 19 is passed to double planet wheel rows of mixing gear ring 20; Pass to single planetary row sun gear 21 again; Pass to output gear 25 by single planetary row planet carrier 23, through output shaft 26 and differential mechanism 28 the most at last power pass on the semiaxis.Rear sun gear 18 rotates freely, not transmitting torque.
[D5 retaining]
Power is passed to the pump impeller 5 of fluid torque converter by motor, and pump impeller 5 is passed to turbine 3 through fluid power, and turbine 3 is passed to input shaft 2 through spline; Again by first clutch 7 pass to double planet wheel rows of mixing planet carrier 13, double planet wheel rows of mixing planet carrier 13 is passed to long planet wheel 19; Long planet wheel 19 is passed to double planet wheel rows of mixing 20 gear rings; Pass to single planetary row sun gear 21 again; Pass to output gear 25 by single planetary row sun gear 21, through output shaft 26 and differential mechanism 28 the most at last power pass on the semiaxis.Preceding sun gear 16, short planet wheel 17 rotate freely, not transmitting torque.
[D6 retaining]
Power is passed to the pump impeller 5 of fluid torque converter by motor, and pump impeller 5 is passed to turbine 3 through fluid power, and turbine 3 is passed to input shaft 2 through spline; Sun gear 16 before passing to by second clutch 6 again; Preceding sun gear 16 is passed to short planet wheel 17; Short planet wheel 17 is passed to long planet wheel 19 and double planet wheel rows of mixing planet carrier 13, and long planet wheel 19 is passed to double planet wheel rows of mixing gear ring 20 with double planet wheel rows of mixing planet carrier 13, passes to single planetary row again; Single planetary row planet carrier 23 is passed to output gear 25, through output shaft 26 and differential mechanism 28 the most at last power pass on the semiaxis.
[D7 retaining]
Power is passed to the pump impeller 5 of fluid torque converter by motor, and pump impeller 5 is passed to turbine 3 through fluid power, and turbine 3 is passed to input shaft 2 through spline; Pass to double planet wheel rows of mixing planet carrier 13 by first and second clutch 7,6 again; Pass to double planet wheel rows of mixing gear ring 20 by long planet wheel 19; Pass to single planetary row again, pass to output gear 25 by single planetary row planet carrier 23, through output shaft 2 and differential mechanism 28 the most at last power pass on the semiaxis.Rear sun gear 21 rotates freely, not transmitting torque.
[D8 retaining]
Power is passed to the pump impeller 5 of fluid torque converter by motor, and pump impeller 5 is passed to turbine 3 through fluid power, and turbine 3 is passed to input shaft 2 through spline; Pass to double planet wheel rows of mixing planet carrier 13 by first clutch 7 again; Pass to long planet wheel 19 again; Long planet wheel 19 is passed to double planet wheel rows of mixing gear ring 20 with double planet wheel rows of mixing planet carrier 13; Double planet wheel rows of mixing gear ring 20 is passed to single planetary row, passes to output gear 25 again, through output shaft 26 and differential mechanism 28 the most at last power pass on the semiaxis.Sun gear 16, short planet wheel 17 rotate freely before the double planet wheel rows of mixing, not transmitting torque.
[reversing gear]
Three-clutch 15, additional brake 9, first break 11 combine; Double planet wheel rows of mixing planet carrier 13 is fixed at this moment.
Power is passed to the pump impeller of fluid torque converter by motor, and pump impeller 5 is passed to turbine 3 through fluid power, and turbine 3 is passed to input shaft 2 through spline; Pass to rear sun gear 18 by three-clutch 15 again; Rear sun gear 18 is passed to long planet wheel 19; Long planet wheel 19 is passed to double planet wheel rows of mixing gear ring 20; Pass to single planetary row sun gear 21 again, pass to output gear 25 by single planetary row planet carrier 23, through output shaft 26 and differential mechanism 28 the most at last power pass on the semiaxis.Preceding sun gear 16, short planet wheel 17 rotate freely, not transmitting torque.
Claims (2)
1. one kind has the automatic transmission that 8 forward gears 1 reverse gear,
It is characterized in that:It comprises La Weina planetary system structure, single planet row, extra clutch (10) and additional brake (9); Said single planet row is located between the double planet wheel rows of mixing gear ring (20) and output gear (25) of La Weina planetary system structure; Single planetary row sun gear (21) is connected with double planet wheel rows of mixing gear ring (20) spline, single planetary row planet carrier (23) and output gear (25) splined; Extra clutch (10) is located between the double planet wheel rows of mixing gear ring (20) or single planetary row sun gear (21) and single planetary row gear ring (24) of La Weina planetary system structure; Clutch two hubs connect respectively at double planet wheel rows of mixing gear ring (20) or single planetary row sun gear (21) and single planetary row gear ring (24), connect between the double planet wheel rows of mixing gear ring (20) that additional brake (9) is located at La Weina planetary system structure and the output gear (25) and with single planetary row gear ring (24).
2. according to claim 1 have an automatic transmission that 8 forward gears 1 reverse gear,
It is characterized in that:Said automatic transmission comprises input shaft (2); Be provided with fluid torque converter, oil pump to a left side from the right side on the input shaft with being separated by successively; The connection hub (8) of first clutch (7), second clutch (6), first clutch (7), the interior hub (29) of second clutch (6), output gear (25), single planetary row, additional brake (9), extra clutch (10), La Weina planetary system structure, first break (11), overrunning clutch (12), second break (14), three-clutch (15), wherein:
Input shaft (2) is connected with transformer turbine (3), the outer hub spline of three-clutch (15); Connect firmly with first clutch (7), the outer hub of second clutch (6);
Preceding sun gear (16), rear sun gear (18) are connected with input shaft (2) through sliding bearing;
The interior hub (29) of second clutch (6) is connected with preceding sun gear (16) spline; The connection hub (8) of first clutch is connected with planet carrier (13) spline;
Rear sun gear (18) connects firmly with the interior hub of three-clutch (15), the interior hub of second break (14); Double planet wheel rows of mixing gear ring (20) combines as a whole with the interior hub of extra clutch (10) and is connected with single planetary row sun gear (21) spline, and sun gear (16) is in radially being connected through sliding bearing before single planetary row sun gear (21) and the double planet wheel rows of mixing; Output gear (25) hub outer ring connects the two interference fit with two-row ball bearing inner ring on being located at housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202281092U CN202165553U (en) | 2011-06-30 | 2011-06-30 | Automatic transmission with eight forward gears and one reverse gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202281092U CN202165553U (en) | 2011-06-30 | 2011-06-30 | Automatic transmission with eight forward gears and one reverse gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165553U true CN202165553U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202281092U Expired - Fee Related CN202165553U (en) | 2011-06-30 | 2011-06-30 | Automatic transmission with eight forward gears and one reverse gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165553U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954156A (en) * | 2012-11-20 | 2013-03-06 | 长城汽车股份有限公司 | Automatic speed changer and car applying same |
| CN111412253A (en) * | 2020-04-13 | 2020-07-14 | 四川铭宏芯瑞科技有限公司 | Automatic gear shifting transmission without cutting off power |
| CN112324873A (en) * | 2020-11-27 | 2021-02-05 | 东华大学 | Multi-gear transmission of passenger car |
| CN113500910A (en) * | 2021-08-16 | 2021-10-15 | 北京理工大学 | Forward and backward mechanism for vehicle |
-
2011
- 2011-06-30 CN CN2011202281092U patent/CN202165553U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954156A (en) * | 2012-11-20 | 2013-03-06 | 长城汽车股份有限公司 | Automatic speed changer and car applying same |
| CN102954156B (en) * | 2012-11-20 | 2015-08-19 | 长城汽车股份有限公司 | Automatic transmission and apply its automobile |
| CN111412253A (en) * | 2020-04-13 | 2020-07-14 | 四川铭宏芯瑞科技有限公司 | Automatic gear shifting transmission without cutting off power |
| CN111412253B (en) * | 2020-04-13 | 2021-07-23 | 四川铭宏芯瑞科技有限公司 | Automatic gear shifting transmission without cutting off power |
| CN112324873A (en) * | 2020-11-27 | 2021-02-05 | 东华大学 | Multi-gear transmission of passenger car |
| CN113500910A (en) * | 2021-08-16 | 2021-10-15 | 北京理工大学 | Forward and backward mechanism for vehicle |
| CN113500910B (en) * | 2021-08-16 | 2023-11-17 | 北京理工大学 | Forward and backward mechanism for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20170630 |