CN1959153A - Stepless automatic speed changer - Google Patents
Stepless automatic speed changer Download PDFInfo
- Publication number
- CN1959153A CN1959153A CN 200610038246 CN200610038246A CN1959153A CN 1959153 A CN1959153 A CN 1959153A CN 200610038246 CN200610038246 CN 200610038246 CN 200610038246 A CN200610038246 A CN 200610038246A CN 1959153 A CN1959153 A CN 1959153A
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- reverse gear
- transmission
- stepless speed
- speed changing
- changing mechanism
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- 230000005540 biological transmission Effects 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims description 38
- 239000012530 fluid Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
A stepless automatic speed variator is prepared as connecting hydraulic control unit, output clutch, stepless variable-speed unit and reverse gear transmission unit by input shaft in shell; setting said reverse gear transmission unit between output clutch and stepless variable-speed unit as well as setting reverse gear transmission unit, output clutch, stepless variable-speed unit and oil pump in the same shell.
Description
Technical field
The present invention relates to the Motor Vehicle power transmission system, specifically, relate to a kind of automobile CVT (continuously variable transmission).
Background technique
At present, no matter the automotive transmission that uses on the market is manual transmission or automatic transmission, in its work, all will carry out frequent gear shift according to different traffic informations.In gearshift procedure, the rotating speed of motor also can be done corresponding adjustment thereupon, unstable working condition, cause dynamic impact easily, the exhaust emission of motor is increased, and CVT (continuously variable transmission) can solve the problems of the technologies described above, and makes engine operation in very high benefit district, reach fuel-economy performance preferably, thereby obtain comparatively desirable discharging.
Common CVT (continuously variable transmission) on Chinese market is the gearbox of C1F1 as the model that circulates on the Japanese market, and its structure comprises, the oil pump of externally connected type chain transmission is arranged in hydraulic control device, output clutch and stepless speed changing mechanism in the housing; And be arranged in reverse gear transmission in the small shell in the housing.The composition of this reverse gear mechanism is by small shell, brake plunger reverses gear, many group little springs, friction plate assembly and planetary gear train are formed, its annexation and mounting point are that reverse gear mechanism places between output clutch and the stepless speed changing mechanism, and axially-aligned with it, small shell in the reverse gear mechanism utilizes bolt to be installed on the gear box casing, brake plunger and small shell inwall composition oil closed cavity reverses gear, the little spring group is installed in the outer end of piston, friction plate assembly one end places the spline of small shell, one end places the gear ring of planetary gear train, planetary gear train is sleeved on the input shaft, and is meshed with gear on the input shaft.
Because reverse gear transmission is arranged on the small shell of gear box casing, make the volume of CVT (continuously variable transmission) increase, arrange compact inadequately, be unfavorable for the general arrangement of whole automobile chassis system, and above-mentioned reverse gear transmission is not easy control, and component are many, makes and the mounting process complexity.
Summary of the invention
The technical problem to be solved in the present invention is that to overcome above-mentioned CVT (continuously variable transmission) volume big, arranges compactly inadequately, is unfavorable for that whole automobile chassis overall system is provided by the uppity deficiency of reverse gear mechanism, and a kind of CVT (continuously variable transmission) that provides.
For solving the problems of the technologies described above, the invention provides CVT (continuously variable transmission), comprise housing, oil pump and be arranged in hydraulic control device, output clutch, stepless speed changing mechanism and the reverse gear transmission that input shaft connects of passing through in the housing, described reverse gear transmission is arranged between output clutch and the stepless speed changing mechanism, and reverse gear transmission and output clutch and stepless speed changing mechanism are arranged in the same housing.
In the prior art, reverse gear transmission is arranged in the interior small shell of stepless speed variator housing, makes power transmission path long, and the housing volume is big, and is not easy control; The present invention is arranged on reverse gear transmission between output clutch and the stepless speed changing mechanism, and reverse gear transmission and output clutch and stepless speed changing mechanism be arranged in the same housing, not only saves the space, and control easily.
Described reverse gear transmission comprises reverse gear brake, and the planetary gears that links to each other with reverse gear brake.
Described reverse gear brake one end links to each other with the housing rigidity, and the other end links to each other with planetary gears by braking plate.
Described planetary gears one end links to each other with the break that reverses gear by friction plate, and the other end links to each other with stepless speed changing mechanism with spline fitting by support.
Be connected for rigidity between described support and the spline fitting.
The present invention is arranged on reverse gear transmission between output clutch and the stepless speed changing mechanism, and reverse gear transmission and output clutch and stepless speed changing mechanism are arranged in the same housing, not only save the space, the CVT (continuously variable transmission) volume is reduced, arrange compactly, help the general arrangement of whole automobile chassis system, and make reverse gear transmission control easily, component are few, and manufacturing and mounting process are simple, long service life.
Description of drawings
Fig. 1 is a CVT (continuously variable transmission) structural representation of the present invention;
Fig. 2 is the structural representation of reverse gear transmission shown in Figure 1;
Fig. 3 is the power transmission schematic representation of reverse gear transmission shown in Figure 1;
Fig. 4 is the structural representation of existing CVT (continuously variable transmission);
Wherein, 1, fluid torque converter; 2, oil pump; 3, output clutch; 4, reverse gear brake; 5, planetary gears; 6, CVT (continuously variable transmission); 7, power take-off mechanism; 8, input shaft; 9, friction plate assembly; 10, support; 11, spline fitting; 12, active cone pulley; 13, steel band; 14, driven cone pulley; 15, reduction gear; 16, output shaft; 17, differential mechanism; 18, movable awl dish; 19, housing; 20, braking plate.
Embodiment
As Fig. 1---shown in Figure 3, a kind of CVT (continuously variable transmission), comprise housing 19, oil pump 2 and be arranged in fluid torque converter 1, output clutch 3, stepless speed changing mechanism 6 and the reverse gear transmission that input shaft 8 connects of passing through in the housing 19, described reverse gear transmission is arranged between output clutch 3 and the stepless speed changing mechanism, and reverse gear transmission and output clutch 3 and stepless speed changing mechanism are arranged in the same housing 19.Reverse gear transmission comprises reverse gear brake 4, and the planetary gears 5 that links to each other with reverse gear brake 4; Reverse gear brake 4 one ends link to each other with housing 19 rigidity, and the other end links to each other with planetary gears 5 by braking plate 20.Planetary gears 5 one ends link to each other with the break that reverses gear by braking plate 20, and the other end links to each other with stepless speed changing mechanism with spline 11 by support 10; Be connected for rigidity between described support 10 and the spline fitting 11.
When forward gears, power is exported from motor, by the fluid torque converter 1 that is installed on the gearbox input shaft 8 transmission of power is arrived input shaft 8, pass through hydraulic control device then, hydraulic control device is given friction plate assembly 9 by output clutch 3 with transmission of power, friction plate assembly 9 again with transmission of power to support 10, be rigidly connected by support 10 and spline fitting 11, transmission of power is to the active cone pulley 12 of stepless speed changing mechanism, by being enclosed within the steel band 13 on the cone pulley, with the driven cone pulley 14 of transmission of power to stepless speed changing mechanism, power arrives output shaft 16 by one group of reduction gear 15 with transmission of power then, through one group of reduction gear 15 power is passed on the differential mechanism 17 again, output power to wheel.In transmission of power during to the active cone pulley 12 of stepless speed changing mechanism, regulate the activity awl dish 18 of can be free movable stepless speed changing mechanism by hydraulic control, change the radius of clean-up of steel band 13 on the stepless speed changing mechanism driven wheel, thereby obtain stepless change.
When reverse gear, power is exported from motor, by the fluid torque converter 1 that is installed on the gearbox input shaft 8 transmission of power is arrived input shaft 8, pass through hydraulic control device then, hydraulic control device passes to planetary wheeling mechanism by the break that reverses gear, again by planetary wheeling mechanism with transmission of power to support 10, be rigidly connected by support 10 and spline fitting 11, transmission of power is to the active cone pulley 12 of stepless speed changing mechanism, by being enclosed within the steel band 13 on the cone pulley, with the driven cone pulley 14 of transmission of power to stepless speed changing mechanism, promptly transmission of power is arrived output shaft 16 through power take-off mechanism 7 again by one group of reduction gear 15, through one group of reduction gear 15 power is passed on the differential mechanism 17 again, output power to wheel.In transmission of power during to the active cone pulley 12 of stepless speed changing mechanism, regulating by hydraulic control can free movable activity awl dish 18, changes the radius of clean-up of steel band 13 on the driven wheel of stepless speed changing mechanism, thereby obtains stepless change.
Compare with other speed changer, the maneuverability and the travelling comfort of stepless speed variator all improve a lot.And in the speed changer process, do not have the interruption of power, thereby improved the power performance of automobile.In the course of the work, the rotating speed that can control motor changes in very among a small circle, and the speed of a motor vehicle is changed in the scope of broad, can better coordinate automobile external environment and road conditions.
The function of automotive power transmission system is to mate to adapt to the needs that travel with the characteristic of motor.For making full use of the power of motor, reduce the consumption of fuel and improve the emission performance of motor, desirable automobile gearbox should have the velocity ratio of stepless variation.
The present invention not only is confined to above-mentioned embodiment, and the mounting arrangements form of any and equivalence of the present invention is all within protection scope of the present invention.
Claims (5)
1, automatic transmission, comprise housing (19), oil pump (2) and be arranged in fluid torque converter (1), output clutch (3), stepless speed changing mechanism and the reverse gear transmission that input shaft (8) connects of passing through in the housing, it is characterized in that: described reverse gear transmission be arranged on output clutch (3) and stepless speed changing mechanism (between, and reverse gear transmission and output clutch (3) and stepless speed changing mechanism are arranged in the same housing (9).
2, the described CVT (continuously variable transmission) of claim 1 is characterized in that: described reverse gear transmission comprises reverse gear brake (4), and the planetary gears (5) that links to each other with reverse gear brake (4).
3, the described CVT (continuously variable transmission) of claim 2 is characterized in that: described reverse gear brake (4) one ends and housing (9) are rigidly connected, and the other end links to each other with planetary gears (5) by braking plate.
4, CVT (continuously variable transmission) as claimed in claim 2 is characterized in that: described planetary gears (5) one ends link to each other with the break that reverses gear (4) by friction plate (9), and the other end links to each other with stepless speed changing mechanism with spline fitting (11) by support (10).
5, CVT (continuously variable transmission) as claimed in claim 4 is characterized in that: between described support (10) and the spline fitting (11) for being rigidly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100382463A CN100476255C (en) | 2006-02-08 | 2006-02-08 | Stepless automatic speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100382463A CN100476255C (en) | 2006-02-08 | 2006-02-08 | Stepless automatic speed changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1959153A true CN1959153A (en) | 2007-05-09 |
| CN100476255C CN100476255C (en) | 2009-04-08 |
Family
ID=38070977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100382463A Active CN100476255C (en) | 2006-02-08 | 2006-02-08 | Stepless automatic speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100476255C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278331A (en) * | 2018-01-25 | 2018-07-13 | 南京邦奇自动变速箱有限公司 | Final drives subsystem, transmission system, motor vehicles, the method for driving motor vehicles |
-
2006
- 2006-02-08 CN CNB2006100382463A patent/CN100476255C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278331A (en) * | 2018-01-25 | 2018-07-13 | 南京邦奇自动变速箱有限公司 | Final drives subsystem, transmission system, motor vehicles, the method for driving motor vehicles |
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| Publication number | Publication date |
|---|---|
| CN100476255C (en) | 2009-04-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160309 Address after: 241000 Wuhu economic and Technological Development Zone, Changchun Road, No. 8, No. Patentee after: CHERY AUTOMOBILE CO., LTD. Address before: 241000 Wuhu economic and Technological Development Zone, Anhui, Changchun Road, No. 8, No. Patentee before: Saic Chery Automobile Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Hunan Road Wuhu economic and Technological Development Zone 241000 Anhui Fengming No. 11 Patentee after: Wuhu WanLiYang transmission Co., Ltd. Address before: 241000 Wuhu economic and Technological Development Zone, Changchun Road, No. 8, No. Patentee before: CHERY AUTOMOBILE CO., LTD. |