CN208764256U - A kind of new 7 speed automobile automatic transmission - Google Patents
A kind of new 7 speed automobile automatic transmission Download PDFInfo
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- CN208764256U CN208764256U CN201820113113.6U CN201820113113U CN208764256U CN 208764256 U CN208764256 U CN 208764256U CN 201820113113 U CN201820113113 U CN 201820113113U CN 208764256 U CN208764256 U CN 208764256U
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- planet
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- gear
- wet clutch
- sun gear
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Abstract
The utility model discloses a kind of new 7 speed automobile automatic transmission, including three groups of planet rows, it is followed successively by first row single planetary bevel gear planet row, second row single planetary bevel gear planet row, third row's dual planetary gear planet row from left to right, every group of planet row is made of sun gear, gear ring, planet carrier, in first row single planetary bevel gear planet row, gear ring is often input, and sun gear is often fixed；The connection type of mixed connection, the second planet row and third planet mining parallel is used to form Ravigneaux structure between three groups of planet rows, the first planet row and Ravigneaux structure use series connection mode；Wherein, second planet row and third planet row share a planet carrier and share a gear ring.The structure of the utility model can be designed to that the automatic transmission of preposition forerunner, the automatic transmission of preposition forerunner have many advantages, such as that size is small, light-weight, can reduce the overall weight of vehicle, reduce oil consumption.
Description
Technical field
The utility model belongs to automotive transmission technical field, and in particular to a kind of new 7 speed automobile automatic transmission.
Background technique
As comfort of the people to vehicle requires the advantage of higher and higher and automatic transmission protrusion, automatic become is equipped
The vehicle of fast device is more and more, and vehicle equipment automatic transmission rate produced in USA reaches 80% or more, the vehicle of Europe production
Equipment automatic transmission rate reaches 75% or more, and the vehicle equipment automatic transmission rate of Japan's production reaches 70% or more, and I
The vehicle equipment automatic transmission rate of state's production is about 55%.China equipped most of automatic transmission on vehicle all according to
Rely in import, this seriously constrains the development of China's automobile.Currently, automatic transmission majority of the equipment on car be 6 speed and
Above automatic transmission.And the dynamic property of vehicle can be improved in the increase of gear quantity and improves fuel economy, it can be with
It improves the smooth gear shifting of vehicle and improves the exhaust emissions of vehicle.
As the requirement of national automotive energy-saving emission-reducing is higher and higher, those have equipped the vehicle of 4 gear transmissions at present
It not can enter automotive energy-saving emission-reducing and promote catalogue.Vehicle will enter automotive energy-saving emission-reducing catalogue in, vehicle must be provided with 5 speed or
Automatic transmission more than 5 speed.
Utility model content
For above-mentioned, the purpose of this utility model is to provide a kind of new 7 speed automobile automatic transmission, can improve vehicle
Fuel economy improves the exhaust emissions of vehicle, and improves the smooth gear shifting of vehicle to reduce the shift shock of vehicle；Together
When, the dynamic property of vehicle can also be improved.
To achieve the above object, the utility model provides the following technical solutions:
A kind of new 7 speed automobile automatic transmission, including three groups of planet rows, are followed successively by first row single planetary bevel gear row from left to right
Star row, second row single planetary bevel gear planet row, third arrange dual planetary gear planet row, and every group of planet row is by sun gear, gear ring, planet carrier
It forms, in first row single planetary bevel gear planet row, gear ring is often input (i.e. gear ring is often connect with input shaft), and sun gear is normal fixed
(i.e. sun gear is often connect with case of transmission)；Using the connection of mixed connection (connect and parallel connection combines) between three groups of planet rows
Mode, the second planet row and third planet mining form Ravigneaux structure, the first planet row and Ravigneaux with parallel
Structure uses series connection mode；Wherein, second planet row and third planet row share a planet carrier and share one
Gear ring.
Specifically, 6 executive components have been used in the new 7 speed automobile automatic transmission, 6 executive components include 4
Multi-plate wet clutch C1, C2, C3, C4,2 multi-sheet wet-type brakes B1, B2；When C1 is engaged, by first row planet carrier and the
The connection of three row's sun gears (i.e. small sun gear)；When C2 is engaged, by first row planet carrier and secondary sun gear (i.e. big sun gear)
Connection；When C3 is engaged, input shaft is connect with third row sun gear (i.e. small sun gear)；When C4 is engaged, by input shaft and second
The rows of planetary row planet carrier shared with third planet row connects；When B1 is engaged, fixed secondary sun gear (i.e. big sun gear)；B2
When engagement, fixed second row planet row and third planet arrange shared planet carrier.
Compared with prior art, the beneficial effects of the utility model are:
1, the dynamic property of vehicle is improved, the increase of gear number can preferably improve the dynamic property of vehicle.
2, improving the smooth gear shifting of vehicle, the increase of gear number can increase the gear range of automatic transmission, and
Reduce the ratio of transmission ratio between the gear that is connected, to improve the smooth gear shifting of vehicle, reduces shift shock.
3, improve the fuel economy of vehicle, the increase of gear number, engine working region in low burn oil consumption region
Chance is bigger, and oil consumption reduces, and improves VE Vehicle Economy；At the same time it can also improve the discharge of Vehicular exhaust, it is dirty to reduce atmosphere
Dye.
4, the structure of new 7 gear transmission can be designed to the automatic transmission of preposition forerunner, and preposition forerunner's is automatic
Speed changer has many advantages, such as that size is small, light-weight, can reduce the overall weight of vehicle, reduces oil consumption.
5, the more and light-weight automatic transmission of equipment gear number, can be improved the brand competitiveness of vehicle.
Detailed description of the invention
Fig. 1-2 is the structure diagram of the new 7 speed automobile automatic transmission of the utility model；
Fig. 3-4 is the equivalent lever output point analysis chart that the utility model lever is expanded；
In figure: S is sun gear, R is gear ring, PC is planet carrier, C is multi-plate wet clutch, B is multi-sheet wet-type braking
Device, C1 be multi-plate wet clutch a, C2 be multi-plate wet clutch b, C3 be multi-plate wet clutch c, C4 be multi-sheet wet-type from
Clutch d, B1 is multi-sheet wet-type brake, B2 is multi-sheet wet-type brake.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides new 7 gear transmission as shown in Figs 1-4, including three groups of planet rows, from left to right
It is followed successively by first row single planetary bevel gear planet row, second row single planetary bevel gear planet row, third row's dual planetary gear planet row, every group of planet
Row is made of sun gear, gear ring, planet carrier, and in first row single planetary bevel gear planet row, gear ring is often to input (i.e. gear ring and input shaft
Often connection), sun gear is often fixed (i.e. sun gear is often connect with case of transmission)；Between three groups of planet rows (i.e. using mixed connection
Series connection and parallel connection combine) connection type, the second planet row and third planet mining form Ravigneaux with parallel
Structure, the first planet row and Ravigneaux structure use series connection mode；Wherein, second planet row and third planet row are total
With a planet carrier and share a gear ring.
Specifically, 6 executive components have been used in the new 7 speed automobile automatic transmission, 6 executive components include 4
Multi-plate wet clutch C1, C2, C3, C4,2 multi-sheet wet-type brakes B1, B2；When C1 is engaged, by first row planet carrier and the
The connection of three row's sun gears (i.e. small sun gear)；When C2 is engaged, by first row planet carrier and secondary sun gear (i.e. big sun gear)
Connection；When C3 is engaged, input shaft is connect with third row sun gear (i.e. small sun gear)；When C4 is engaged, by input shaft and third
Arrange sun gear (i.e. big sun gear) connection；When B1 is engaged, fixed secondary sun gear (i.e. big sun gear)；It is fixed when B2 is engaged
The planet carrier that second row planet row and third planet row share.
Following table is the power transmission scheme of new 7 gear transmission, clearly illustrates to execute member under various gears in the table
The working condition of part.
| Gear | C1 | C2 | C3 | C4 | B1 | B2 |
| 1 | ⊙ | ⊙ | ||||
| 2 | ⊙ | ⊙ | ||||
| 3 | ⊙ | ⊙ | ||||
| 4 | ⊙ | ⊙ | ||||
| 5 | ⊙ | ⊙ | ||||
| 6 | ⊙ | ⊙ | ||||
| 7 | ⊙ | ⊙ | ||||
| R | ⊙ | ⊙ |
Note: ⊙ -- indicate executive component work
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (3)
1. a kind of new 7 speed automobile automatic transmission, it is characterised in that including three groups of planet rows, be followed successively by first row list from left to right
Planetary gear planet row, second row single planetary bevel gear planet row, third arrange dual planetary gear planet row, and every group of planet row is by sun gear, tooth
Circle, planet carrier form, and in first row single planetary bevel gear planet row, gear ring is that often input is that gear ring is often connect with input shaft, sun gear
It is often connect for often fixed i.e. sun gear with case of transmission；It is combined between three groups of planet rows using mixed connection i.e. series connection and parallel connection
Connection type, the second planet row and third planet mining form Ravigneaux structure, the first planet row and drawing with parallel
It ties up Na structure and uses series connection mode；Wherein, second planet row and third planet row share a planet carrier and share
One gear ring.
2. new 7 speed automobile automatic transmission according to claim 1, it is characterised in that the new 7 speed automobile fluid drive
Using 6 executive components in device, 6 executive components include 4 multi-plate wet clutch, i.e. multi-plate wet clutch a (C1),
Multi-plate wet clutch b (C2), multi-plate wet clutch c (C3), multi-plate wet clutch d (C4), 2 multi-sheet wet-type brakings
Device, i.e. multi-sheet wet-type brake a (B1), multi-sheet wet-type brake b (B2)；When multi-plate wet clutch a (C1) is engaged, by first
Seniority among brothers and sisters carrier is connect with third row's sun gear, that is, small sun gear；When multi-plate wet clutch b (C2) is engaged, by first row planet carrier
It is connected with secondary sun gear, that is, big sun gear；When multi-plate wet clutch c (C3) is engaged, input shaft and third are arranged into sun gear
I.e. small sun gear connects；When multi-plate wet clutch d (C4) is engaged, input shaft and second row planet row and third planet are arranged altogether
Planet carrier connection；When multi-sheet wet-type brake a (B1) is engaged, fixed secondary sun gear, that is, big sun gear；Multi-sheet wet-type
When brake b (B2) is engaged, fixed second row planet row and third planet arrange shared planet carrier.
3. new 7 speed automobile automatic transmission according to claim 2, it is characterised in that the power of the automatic transmission passes
Pass scheme are as follows: 1 gear, multi-plate wet clutch a (C1), multi-sheet wet-type brake b (B2) engagement；2 gears, multi-sheet wet-type clutch
Device a (C1), multi-sheet wet-type brake a (B1) engagement；3 gears, multi-plate wet clutch a (C1), multi-plate wet clutch b (C2)
Engagement；4 gears, multi-plate wet clutch b (C2), multi-plate wet clutch c (C3) engagement；5 gears, multi-plate wet clutch c
(C3), multi-plate wet clutch d (C4) is engaged；6 gears, multi-plate wet clutch b (C2), multi-plate wet clutch d (C4) connect
It closes；7 gears, multi-plate wet clutch d (C4), multi-sheet wet-type brake a (B1) engagement；R gear, multi-plate wet clutch b
(C2), multi-sheet wet-type brake b (B2) is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820113113.6U CN208764256U (en) | 2018-01-23 | 2018-01-23 | A kind of new 7 speed automobile automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820113113.6U CN208764256U (en) | 2018-01-23 | 2018-01-23 | A kind of new 7 speed automobile automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764256U true CN208764256U (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820113113.6U Active CN208764256U (en) | 2018-01-23 | 2018-01-23 | A kind of new 7 speed automobile automatic transmission |
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| CN (1) | CN208764256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278338A (en) * | 2018-01-23 | 2018-07-13 | 柳州职业技术学院 | A kind of new 7 speed automobile automatic transmission |
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2018
- 2018-01-23 CN CN201820113113.6U patent/CN208764256U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278338A (en) * | 2018-01-23 | 2018-07-13 | 柳州职业技术学院 | A kind of new 7 speed automobile automatic transmission |
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