CN107524767B - Three planet row automatic transmission and vehicle - Google Patents
Three planet row automatic transmission and vehicle Download PDFInfo
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- CN107524767B CN107524767B CN201710844401.9A CN201710844401A CN107524767B CN 107524767 B CN107524767 B CN 107524767B CN 201710844401 A CN201710844401 A CN 201710844401A CN 107524767 B CN107524767 B CN 107524767B
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- clutch
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- brake
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/62—Gearings having three or more central gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0052—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising six forward speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2043—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with five engaging means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The present invention relates to automotive fields, disclose three planet row automatic transmission of one kind and vehicle, including input link and output link, first, second, third planet row, first, second, third clutch and the first, second brake, wherein, the first planet row is dual planetary gear group planet row, second, third planet row is single planetary bevel gear group planet row；First sun gear is fixed, first gear ring is connect by first clutch with output link, first planet carrier is fixedly connected with the second planet carrier, second gear ring is fixedly connected with third planet carrier, input link is fixedly connected with the second sun gear, input link is connect by third clutch with third sun gear, and second clutch closure turns round the second planet row integrally；Third planet carrier is connect by the first brake with cabinet, and third sun gear is connect by second brake with cabinet.
Description
Technical field
The present invention relates to automotive fields, more particularly to a kind of three planet row automatic transmission and vehicle.
Background technique
Electric control hydraulic variator system realizes that the mechanism of speed change generally comprises multiple planet rows, and engine power is through fluid power
It is passed to after planet row gear carries out speed change and exports after torque-converters.Volume, weight, efficiency and the carrying energy of automatic transmission
Power is directly related with planet row structure layout.The gear number of automatic transmission drive train is more, and the fuel consumption of automobile is lower, warp
Ji property is better.But with the increase of gear number, quantity and controlled clutch, the quantity of brake of planet row are also increasing
Add, the design for meeting theoretical stage ratio is even more to be difficult to realize.
Currently, the scheme for six gear transmissions that passenger car uses in the market is main are as follows: (1) love letter, adopt and angstrom inspire confidence in (ZF)
And lucky (DSI) use carry out Pei Laijie scheme；(2) scheme that modern times A6MF and A6LF series uses；(3) general 6T series makes
Scheme；(4) six fast scheme used in the blue sky Mazda Chuan Chi.
But Lai Peilaijie scheme is to increase a planet row on the basis of tetra- gear transmission of La Weina to realize
, it cannot achieve direct gear；
The scheme of modern and general six gear transmissions used includes two clutches and three brakes, brake
Quantity it is more, and in the manufacturing process of speed changer, the friction steel disc tooth of brake is finally attached on cabinet, manufactures work
Skill is more complicated, and more brake undoubtedly increases the processing and manufacturing difficulty of cabinet, and the tank material of speed changer is general
It is aluminium alloy, more brake undoubtedly can make the light-weight design of cabinet cause difficulty while can guarantee cabinet intensity；
Wound speeds six fast schemes used in blue sky from the transverse direction for matching the six fast schemes used on large diesel engine cart
Arrangement is matched with gasoline locomotive, the characteristic with inadequate natural endowment in the speed ratio configuration that can be realized.
Summary of the invention
The object of the present invention is to provide one kind under the premise of using five operating elements, only with two brakes
The three planet row automatic transmission for realizing the output of six speed ratios, to reduce the manufacture difficulty of mission case, and make cabinet in energy
While enough proof strengths, the feasibility of the light-weight design of cabinet is improved.
To achieve the goals above, the present invention provides a kind of three planet row automatic transmission, including input link and defeated
Component out, is arranged successively the first, second, third planet row of setting along same rotating shaft, the first, second, third clutch with
And first, second brake, wherein first planet row include the first gear ring, intermeshing first inner planets round group and
First outer planet round group, the first sun gear and first planet carrier；Second planet row includes the second gear ring, the second planetary gear
Group, the second sun gear and the second planet carrier；The third planet row includes third gear ring, the third line star-wheel group, third sun gear
And third planet carrier；First sun gear is fixed, and first gear ring passes through the first clutch and the output
Component connection, the first planet carrier are fixedly connected with second planet carrier, second gear ring and the third planet carrier
It is fixedly connected, the input link is fixedly connected with second sun gear, and the input link passes through the third clutch
It is connect with the third sun gear, the second clutch is arranged on second planet row, the second clutch selection
It is closed so that second planet row is integrally turned round with the input link to property；First brake selectively closes off,
To brake the third planet carrier, second braking is selectively closed off, and the third sun gear is braked.
Preferably, the second clutch is arranged between second gear ring and the second sun gear, and described the
Two gear rings are connect by the second clutch with second sun gear.
Preferably, the second clutch is arranged between second planet carrier and the second sun gear, described
Second planet carrier is connect by the second clutch with second sun gear.
Preferably, first sun gear is fixedly connected with the cabinet of speed changer.
Preferably, in first planet row, outside first sun gear and the first inner planets round group
Engagement, the first inner planets round group and the first outer planet round group external toothing, the first outer planet round group and described the
One gear ring internal messing, the first inner planets round group and the first outer planet round group pass through bearing and are mounted on first planet carrier corresponding position
Pin shaft on.
Preferably, in the second planet row, the second sun gear and the second planetary gear set external toothing, the second planetary gear
Group and the second gear ring internal messing, the second planetary gear set are mounted on the pin shaft of the second planet carrier by bearing；It is arranged in third planet
In, third sun gear and the third line star-wheel group external toothing, the third line star-wheel group and third gear ring internal messing, the third line star-wheel group are logical
Bearing is crossed to be mounted on the pin shaft of third planet carrier.
Preferably, the cabinet of one end of first brake and speed changer connects, the other end and the third
Planet carrier connection；One end of the second brake and the cabinet of speed changer connect, and the other end is connect with the third sun gear.
Preferably, first, second and third clutch be multi-plate wet clutch or dog from
Clutch.
It preferably, can be in the input when the first clutch and first brake are closed at
First forward speed ratio is generated between component and output link；When the first clutch and the second brake close simultaneously
When conjunction, second forward speed ratio can be generated between the input link and output link；When the first clutch and institute
When stating third clutch and being closed at, a third forward speed ratio can be generated between the input link and output link；When
When the first clutch and the second clutch are closed at, one can be generated between the input link and output link
A 4th forward speed ratio；When the second clutch and the third clutch are closed at, can in the input link and
The 5th forward speed ratio is generated between output link；When the second brake and the second clutch are closed at,
The 6th forward speed ratio can be generated between the input link and output link；When first brake and the third
When clutch is closed at, a reverse speed ratios can be generated between the input link and output link.
It is identical in order to solve the problems, such as, the present invention also provides a kind of vehicle, three planet rows including any of the above-described scheme
Automatic transmission.
Three planet row automatic transmission of the invention, use three clutches and two brakes as operating element and
The connection scheme of three planet rows combination is, it can be achieved that a variety of groups selectively closed off only with two of them operating element
Conjunction mode can produce multiple (six forward speed ratios and a reverse speed ratios) speed ratio shifts；And use relatively fewer (two)
The processing and manufacturing difficulty of cabinet can be greatly decreased as operating element in brake, have in the case where guaranteeing the intensity of cabinet
It is manufactured conducive to the light-weight design of cabinet；In addition, the nested designs of clutch can be conducive to using more clutch, so that
The structure of speed changer is more compact, and can be conducive to the connection relationship between planet row is broken in specific gear incision, so that redundancy
Planet row dally and without bearing torque or be not involved in rotation, to reduce the towing torque of planet row, improve the biography of speed changer
Efficiency of movement.
Detailed description of the invention
Fig. 1 is the attachment structure schematic diagram of three each components of planet row automatic transmission of one embodiment of the present invention；
Fig. 2 is the attachment structure schematic diagram of three each components of planet row automatic transmission of another preferred embodiment of the present invention；
Fig. 3 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize the first forward speed ratio；
Fig. 4 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize the second forward speed ratio；
Fig. 5 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize third forward speed ratio；
Fig. 6 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize four forward speed ratios；
Fig. 7 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize five forward speed ratios；
Fig. 8 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize six forward speed ratios；
Fig. 9 is power transmission line schematic diagram when three planet row automatic transmission shown in Fig. 1 realize reverse speed ratios.
Wherein, the 1, first planet row；11, the first sun gear；12, the first gear ring；13, first planet carrier；14, the first expert
Star-wheel group；15, the first outer planet round group；2, the second planet row；21, the second sun gear；22, the second gear ring；23, the second planet
Frame；24, the second planetary gear set；3, third planet is arranged；31, third sun gear；32, third gear ring；33, third planet carrier；34,
Three planetary gear sets；4, cabinet；5, input link；6, output link；C1, first clutch；C2, second clutch；C3, third from
Clutch；B1, the first brake；B2, second brake.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Embodiment 1
As shown in Figure 1, schematically showing the three planet row automatic transmission of one kind of the embodiment of the present invention comprising input
Component 5 (input shaft) and output link 6 (output shaft) are arranged successively the first planet row 1, the second row of setting along same rotating shaft
Star row 2 and third planet row 3, first clutch C1, second clutch C2, third clutch C3 and the first brake B1, the
Two brake B2；
Wherein, the first planet row 1 includes the first sun gear 11, the first gear ring 12, first planet carrier 13, intermeshing the
One inner planets round group 14 and the first outer planet round group 15, the connection relationship of these components are as follows: the first sun gear 11 and the first expert
14 external toothing of star-wheel group, 15 external toothing of the first inner planets round group 14 and the first outer planet round group, the first outer planet round group and first
It is right that 12 internal messing of gear ring, the first inner planets round group 14 and the first outer planet round group 15 are mounted on first planet carrier 13 by bearing
It answers on the pin shaft of position；
Second planet row 2 includes the second sun gear 21, the second gear ring 22, the second planet carrier 23, the second planetary gear set 24, this
The connection relationship of a little components are as follows: 21 external toothing of the second planetary gear set 24 and the second sun gear, the second planetary gear set 24 and the second tooth
22 internal messings are enclosed, the second planetary gear set 24 is mounted on the pin shaft of the second planet carrier 23 by bearing；
Third planet row 3 includes third sun gear 31, third gear ring 32, third planet carrier 33 and the third line star-wheel group 34,
The connection relationship of these components are as follows: the third line star-wheel group 34 and 31 external toothing of third sun gear, the third line star-wheel group 34 and third
32 internal messing of gear ring, the third line star-wheel group 34 are mounted on the pin shaft of third planet carrier 33 by bearing.
Please continue to refer to shown in Fig. 1, the first sun gear 11 passes through fixed, that is to say, that the first sun gear 11 is in normal
Therefore first sun gear 11 can be fixedly connected by the state of braking with cabinet 4, with it is unnecessary setting brake position,
Setting brake is avoided, to reduce the quantity of brake as far as possible；
First gear ring 12 is connect by first clutch C1 with output link 6, first planet carrier 13 and the second planet carrier 23
Using welding, integrally manufactured or the modes such as connect by spline and be fixedly connected, the second gear ring 22 is used with third planet carrier 33
It is welding, integrally manufactured or modes are connected etc. by spline be fixedly connected, input link 5 and the second sun gear 21 using weld,
Integrally manufactured or the modes such as connect by spline and be fixedly connected, input link 5 passes through third clutch C3 and third sun gear
31 connections；
Second clutch C2 is arranged between the second gear ring 22 and the second sun gear 21, and the second gear ring 22 passes through the second clutch
Device C2 is connect with the second sun gear 21, and the effect of second clutch C2 is, when it is selectively closed off, so that the second planet row
2 turn round as a whole with input link 5；
One end of first brake B1 and the cabinet 4 of speed changer connect, and the other end is connect with third planet carrier 33, is acted on
It is that, when the first brake B1 is selectively closed off, third planet carrier 33 can be braked；One end of second brake B2 and change
The cabinet 4 of fast device connects, and the other end is connect with the third sun 31, and effect is, when second brake B2 is selectively closed off,
The third sun 31 can be taken turns and be braked.
In addition, three above-mentioned clutches can be multi-plate wet clutch or dog clutch, it is convenient for clutch
Nested designs.
It is below how to realize to operate using five by the three planet row automatic transmission for specifically enumerating the embodiment of the present invention
Two operating elements in element selectively close off can generate multiple speed ratios changes between input link 5 and output link 6
It changes:
It as shown in Table 1, is the speed ratio shift logical table of three planet row automatic transmission of the embodiment of the present invention, in table one
It is enumerated and is specifically selectively closed using any two operating elements, to be generated between input link 5 and output link 6
Six forward speed ratios and reverse speed ratios, for the ease of statement, before this six forward speed ratios sequences are named as first
Into speed ratio to the 6th forward speed ratio, and this six forward speed ratios are successively labeled as 1 gear -6 gear in Table 1, by reverse speed ratios mark
It is denoted as R gear；K1, K2, K3 are respectively the characteristic parameter of three planet rows in Table 1, and specific value is the tooth of respective gear ring
Several ratios with the sun gear number of teeth.
Incorporated by reference to shown in table one and attached drawing 3, when first clutch C1, the first brake B1 are closed at, can input
The first forward speed ratio (1 gear), in 1 gear, first clutch C1 closure, by first are generated between component 5 and output link 6
Gear ring 12 is connect with output link 6, and the first brake B1 is closed so that the second gear ring 22 and third planet carrier 33 are braked simultaneously,
Therefore, as attached drawing 3 is shown in solid, the power transmission line of 1 gear are as follows: power is input to the second sun gear 21 by input link 5, and
Second planet carrier 23 is transferred to by the second planetary gear set 24, then first planet carrier 13 is transferred to by the second planet carrier 23, then
First gear ring 12 is transferred to by the first inner planets round group 14 and the first outer planet round group 15, is finally transferred to by first clutch C1
Output link 6 outputs power；Therefore, the transmission speed ratio of 1 gear are as follows: i1=[K1 × (1+K2)]/(K1-1).
In conjunction with shown in table one and attached drawing 4, when first clutch C1, second brake B2 are closed at, it can input
The second forward speed ratio (2 gear), in 2 gears, first clutch C1 closure, by the first tooth are generated between component 5 and output link 6
Circle 12 is connect with output link 6, and second brake B2 is closed so that third sun gear 31 is braked, therefore, such as 4 solid line institute of attached drawing
Show, the power transmission line of 2 gears is divided into two: 1. power is input to the second sun gear 21 by input link 5, and by the second planet
Wheel group 24 is transferred to the second planet carrier 23, then is transferred to first planet carrier 13 by the second planet carrier 23, then by the first expert
Star-wheel group 14 and the first outer planet round group 15 are transferred to the first gear ring 12, are finally transferred to output link 6 by first clutch C1
It outputs power；2. power is input to the second sun gear 21 by input link 5, and is transferred to the second tooth by the second planetary gear set 24
Circle 22 and third planet carrier 33, then third gear ring 32 is transferred to by the third line star-wheel group 34, finally it is transferred to by third gear ring 32
Output link 6 outputs power；Therefore, the transmission ratio of 2 gears are as follows:
I2=[K1 × (1+K2+K3)+K2 × K3]/[(K1-1) × (1+K3)].
In conjunction with shown in table one and attached drawing 5, when first clutch C1 and third clutch C3 is closed at, it can input
Third forward speed ratio (3 gear), in 3 gears, first clutch C1 closure, by the first tooth are generated between component 5 and output link 6
Circle 12 is connect with output link 6, and third clutch C3 is closed third sun gear 31 and input link 5 so that as input element
Connection, therefore, if attached drawing 5 is shown in solid, produces three power transmission lines, 1. power is defeated by input link 5 under 3 gears
Enter to the second sun gear 21, and the second planet carrier 23 is transferred to by the second planetary gear set 24, then transmit by the second planet carrier 23
To first planet carrier 13, the first gear ring 12 is then transferred to by the first inner planets round group 14 and the first outer planet round group 15, finally
Output link 6 is transferred to by first clutch C1 to output power；2. power is input to the second sun gear 21 by input link 5,
And the second gear ring 22 and third planet carrier 33 are transferred to by the second planetary gear set 24, then third is transferred to by the third line star-wheel group 34
Gear ring 32 is finally transferred to output link 6 by third gear ring 32 and outputs power；3. power is inputted by input link 5, through third
Clutch C3 is transferred to third sun gear 31, then is transferred to third gear ring 32 by the third line star-wheel group 34, finally by third gear ring
32, which are transferred to output link 6, outputs power；Therefore, the transmission speed ratio of 3 gears are as follows:
I3=[K1 × (1+K2+K3)+K2 × K3]/[(K1-1) × (1+K2+K3)].
In conjunction with shown in table one and attached drawing 6, when first clutch C1 and second clutch C2 is closed at, it can input
The 4th forward speed ratio (4 gear), in 4 gears, first clutch C1 closure, by the first tooth are generated between component 5 and output link 6
Circle 12 is connect with output link 6, and second clutch C2 is closed so that the second gear ring 22 is connect with input link 5, at this point, the second row
Star row 2 integrally turns round with input link inputs power, therefore, if attached drawing 6 is shown in solid, the power transmission line of 4 gears are as follows: dynamic
Power is inputted by input link 5, power is transmitted first planet carrier 13 through the whole revolution of the second planet row 2, then by the first expert
Star-wheel group 14 and the first outer planet round group 15 are transferred to the first gear ring 12, are finally transferred to output link 6 by first clutch C1
It outputs power；Therefore, the transmission speed ratio of 4 gears are as follows: i4=K1/ (K1-1)
It, can be defeated when second clutch C2 and third clutch C3 is closed in conjunction with shown in table one and attached drawing 7
Enter to generate the 6th forward speed ratio (5 gear), in 5 gears, second clutch C2 and third clutch between component 5 and output link 6
C3 is closed at, and so that the second planet row 2 and third planet arrange 3, synchronous revolving is defeated by power as a whole with input link
Enter, then outputed power by output link 6, therefore, 5 gears are direct gear, transmission speed ratio i5=1.
In conjunction with shown in table one and attached drawing 8, when second clutch C2 and second brake B2 is closed at, it can input
The 6th forward speed ratio (6 gear) is generated between component 5 and output link 6, in 6 gears, second clutch C2 is closed so that the second tooth
Circle 22 is connect with input link 5, at this point, the second planet row 2 integrally turns round with input link and inputs power, second brake B2
Closure brakes third sun gear, therefore, if attached drawing 8 is shown in solid, the power transmission line of 6 gears are as follows: power is by input link 5
It is input to the second planet row 2, power is transferred to third planet carrier 33 by the whole revolution of the second planet row 2, then through third planet
Wheel group 34 is transferred to third gear ring 32, is finally transferred to output link 6 by third gear ring 32 and outputs power, therefore, the biography of 6 gears
Dynamic speed ratio: i6=K3/ (1+K3).
In conjunction with shown in table one and attached drawing 9, when the first brake B1 and third clutch C3 is closed at, it can input
A reverse speed ratios (R gear) is generated between component 5 and output link 6, in R gear, the first brake B1 is closed so that the second tooth
Circle 22 and third planet carrier 33 are braked simultaneously, third clutch C3 closure so that third sun gear 31 is connect with input link 5,
Therefore, as attached drawing 9 is shown in solid, the power transmission line of R gear are as follows: power is inputted by input link 5, is passed through third clutch C3
It is handed to third sun gear 31, then power is transferred to third gear ring 32 through the third line star-wheel group 34, is finally passed by third gear ring 32
Output link 6 is handed to output power, therefore, the transmission speed ratio of R gear: iR=-K3.
Table one
Embodiment 2
As shown in Fig. 2, three planet row automatic transmission in the present embodiment are substantially the same with embodiment 1, difference is the
The position of two clutch C2 setting is different, and the second clutch C2 in this implementation is engaged on the second planet carrier 23 and the second sun gear
Between 21, i.e. the second planet carrier 23 is connect by second clutch C2 with the second sun gear 21, and still, second clutch C2 is herein
The effect at place is as the effect of the second clutch C2 in embodiment 1, when it is selectively closed, keeps the second planet row whole
Revolution；Therefore, the three planet row automatic transmission Yu embodiment 1 of the present embodiment share a speed ratio shift logical table (table one),
And the power transmission line figure under each gear of the two is also identical, i.e. the three planet row automatic transmission institutes of the present embodiment are real
Existing function is consistent with the function that embodiment 1 is realized.
Identical in order to solve the problems, such as, the embodiment of the invention also provides a kind of vehicles, including any of the above-described embodiment
Three planet row automatic transmission.
In conclusion three planet row automatic transmission of the invention, use three clutches and two brake conducts
The connection scheme that operating element is combined with three planet rows is, it can be achieved that selectively only with two operating elements therein
The multiple combinations mode of closure can produce multiple (six forward speed ratios and a reverse speed ratios) speed ratio shifts；And use phase
To less (two) brake as operating element, the processing and manufacturing difficulty of cabinet can be greatly decreased, guaranteeing the strong of cabinet
Be conducive to the light-weight design manufacture of cabinet in the case where degree；In addition, clutch can be conducive to using more clutch
Nested designs so that the structure of speed changer is more compact, and can be conducive to the connection between planet row is broken in specific gear incision
Relationship, to reduce the towing torque of planet row, mentions so that the planet row of redundancy dallies without bearing torque or is not involved in rotation
The transmission efficiency of high speed changer.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of three planet row automatic transmission, which is characterized in that including input link and output link, along same rotating shaft according to
Secondary the first, second, third planet row being arranged, the first, second, third clutch and the first, second brake,
In, first planet row include the first gear ring, intermeshing first inner planets round group and the first outer planet round group, first too
Sun wheel and first planet carrier；Second planet row includes the second gear ring, the second planetary gear set, the second sun gear and the second planet
Frame；The third planet row includes third gear ring, the third line star-wheel group, third sun gear and third planet carrier；
First sun gear is fixed, and first gear ring is connect by the first clutch with the output link,
The first planet carrier is fixedly connected with second planet carrier, and second gear ring is fixedly connected with the third planet carrier,
The input link is fixedly connected with second sun gear, and the input link passes through the third clutch and the third
Sun gear connection, the second clutch are arranged on second planet row, and the second clutch, which selectively closes off, to be made
Second planet row is obtained integrally to turn round with the input link；
The second clutch is arranged between second gear ring and the second sun gear, and second gear ring passes through described second
Clutch is connect with second sun gear；Alternatively, the second clutch is arranged in second planet carrier and second sun
Between wheel, second planet carrier is connect by the second clutch with second sun gear；
First brake selectively closes off, and the third planet carrier is braked, and the second brake is selectively
Closure brakes the third sun gear.
2. three planet rows automatic transmission according to claim 1, which is characterized in that first sun gear and speed changer
Cabinet be fixedly connected.
3. three planet rows automatic transmission according to claim 1, which is characterized in that in first planet row, institute
State the first sun gear and the first inner planets round group external toothing, the first inner planets round group and the first outer planet round group
External toothing, the first outer planet round group and the first gear ring internal messing, the first inner planets round group and the first outer planet round group
It is mounted on by bearing on the pin shaft of first planet carrier corresponding position.
4. three planet rows automatic transmission according to claim 1, which is characterized in that in the second planet row, second too
Sun wheel and the second planetary gear set external toothing, the second planetary gear set and the second gear ring internal messing, the second planetary gear set are pacified by bearing
On the pin shaft of the second planet carrier；In third planet row, third sun gear and the third line star-wheel group external toothing, third planet
Wheel group and third gear ring internal messing, the third line star-wheel group are mounted on the pin shaft of third planet carrier by bearing.
5. three planet rows automatic transmission according to claim 1, which is characterized in that one end of first brake with
The cabinet of speed changer connects, and the other end is connect with the third planet carrier；One end of the second brake and the case of speed changer
Body connection, the other end are connect with the third sun gear.
6. three planet rows automatic transmission according to claim 1, which is characterized in that described first, second and third from
Clutch is multi-plate wet clutch or dog clutch.
7. three planet rows automatic transmission according to claim 1, which is characterized in that when the first clutch with it is described
When first brake is closed at, first forward speed ratio can be generated between the input link and output link；
It, can be between the input link and output link when the first clutch and the second brake are closed at
Generate second forward speed ratio；
It, can be between the input link and output link when the first clutch and the third clutch are closed at
Generate a third forward speed ratio；
It, can be between the input link and output link when the first clutch and the second clutch are closed at
Generate the 4th forward speed ratio；
It, can be between the input link and output link when the second clutch and the third clutch are closed at
Generate the 5th forward speed ratio；
It, can be between the input link and output link when the second brake and the second clutch are closed at
Generate the 6th forward speed ratio；
It, can be between the input link and output link when first brake and the third clutch are closed at
Generate a reverse speed ratios.
8. a kind of vehicle, which is characterized in that including three planet rows automatic transmission as described in any one of claim 1 to 7.
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| CN201710844401.9A CN107524767B (en) | 2017-09-18 | 2017-09-18 | Three planet row automatic transmission and vehicle |
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| CN201710844401.9A CN107524767B (en) | 2017-09-18 | 2017-09-18 | Three planet row automatic transmission and vehicle |
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| CN108278335B (en) * | 2018-03-13 | 2023-08-11 | 广州汽车集团股份有限公司 | Multi-clutch module, clutch oil supply system and electric control hydraulic automatic transmission |
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| DE102012210840A1 (en) * | 2012-06-26 | 2014-01-02 | Zf Friedrichshafen Ag | Multi-speed transmission |
| CN106884938A (en) * | 2017-01-25 | 2017-06-23 | 广州汽车集团股份有限公司 | Automatic transmission and vehicle |
| CN106884936B (en) * | 2017-04-11 | 2020-08-04 | 广州汽车集团股份有限公司 | Three-planet-row six-speed automatic transmission and automobile |
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