CN106678296A - Seven-gear planet automatic transmission - Google Patents
Seven-gear planet automatic transmission Download PDFInfo
- Publication number
- CN106678296A CN106678296A CN201611170595.0A CN201611170595A CN106678296A CN 106678296 A CN106678296 A CN 106678296A CN 201611170595 A CN201611170595 A CN 201611170595A CN 106678296 A CN106678296 A CN 106678296A
- Authority
- CN
- China
- Prior art keywords
- gear
- planet
- brake
- planet row
- driving member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
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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
- F16H2200/0056—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising seven forward 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
- F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds
- F16H2200/0086—Transmissions for multiple ratios characterised by the number of reverse speeds the gear ratios comprising two reverse 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
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2012—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with four 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
- F16H2200/2046—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with six engaging means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a seven-gear planet automatic transmission comprising an input component, an output component, driving components, brakes, clutches and planet rows, wherein the number of the planet rows is four, the number of the brakes is four, the number of the clutches is two, and the number of the driving components is five. According to the automatic transmission, the scheme of the four planet rows, the four brakes and the two clutches is adopted, and seven forward gears and two reverse gears are realized. The structure is simple and compact, the occupied space of the transmission is reduced, the range of the transmission ratio is wide, the gear ratio is small, and the situation that engine power is made full use under different working conditions is convenient.
Description
Technical field
The present invention relates to mechanical speed change drive technology field, and in particular to a kind of seven keep off planetary automatic transmission.
Background technology
Drive system is one of element of vehicle, for transmitting engine power, and the energy in straight-line travelling
Change the speed and pull strength of vehicle on request, drive system will also realize reversing and parking of vehicle etc..Variator is transmission
A critically important part in system.At present, the road vehicle of main flow kept off with seven gear planetary automatic transmissions one, two gear speed ratios between
Than larger, it is exactly that output speed fluctuation ratio is larger to be reflected on output speed, it is impossible to make finer regulation to slow-speed of revolution operating mode,
Working machine easily produces shifting shock in running, work the phenomenon such as unstable, that is, cause from one grade to be raised to two grades or from
Two grades can have greatly gearshift pause and transition in rhythm or melody when being down to one grade, have a strong impact on comfortableness and fuel economy.
The content of the invention
The present invention is intended to provide a kind of gear ratio is uniform, excellent performance can meet the use requirement of wheeled heavy-duty vehicle
Seven gear planetary automatic transmissions, to solve prior art in the presence of technical problem.
The present invention is achieved by following technical solution：
A kind of seven keep off planetary automatic transmission, including first planet row, the second planet row, third planet row and fourth planet
Four planet rows of row, the first planet row includes the first sun gear, the first gear ring, the first row carrier, second planet row
Including the second sun gear, the second gear ring, the second planet carrier, third planet row include the 3rd sun gear, the 3rd gear ring, the 3rd
Planet carrier, the fourth planet row includes the 4th sun gear, the 4th gear ring, fourth line carrier；
The input link being connected with input shaft and output shaft respectively and output link；
First driving member, the second driving member, the 3rd driving member, the 4th driving member and the 5th driving member five
Driving member；
First brake, second brake, four brakes of the 3rd brake and the 4th brake；
Two clutches of first clutch and second clutch；
The input link connects the outer hub of the first sun gear, the outer hub of first clutch and second clutch；It is described defeated
Go out component and connect the 4th sun gear and the third line carrier；First driving member connects the interior of the first gear ring and the first brake
Hub；The interior hub of the second driving member connection the first row carrier, the second gear ring and second brake；3rd driving member
Connect the interior hub of the second planet carrier, the 3rd gear ring, fourth line carrier, the interior hub of second clutch and the 3rd brake；Described
Four driving members connect the interior hub of the 4th gear ring and the 4th brake；5th driving member connect the second sun gear, the 3rd
The interior hub of sun gear and first clutch.
Planetary gear number in the first planet row, the second planet row, third planet row and fourth planet row is
Single star planet row.
The k value of the first planet row, the second planet row, third planet row and fourth planet row is 1.5~3.7.
The invention has the beneficial effects as follows：
Compared with prior art, the seven gear planetary automatic transmissions that the present invention is provided, using four planet rows, four brakings
The scheme of device and two clutches realizes seven drive shifts and two retroversion gears；Two fall back gear make vehicle in work backwards just
In the power for making full use of electromotor to do to export；Four planet rows are the simple planet row of single star, and the k value of four planet rows exists
In the range of 1.5~3.7, the integrally-built compactedness of change speed gear box is facilitated implementation, reduce the volume and weight of change speed gear box, Jin Ershi
Existing lightweight；And have the advantages that gear ratio is uniform, excellent performance.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure：1- input links, 2- output links, the driving members of 3- first, the driving members of 4- second, the transmission structures of 5- the 3rd
Part, the driving members of 6- the 4th, the driving members of 7- the 5th, P1- first planet row, the planet rows of P2- second, P3- third planets row,
P4- fourth planets are arranged, the sun gears of T1- first, the sun gears of T2- second, the sun gears of T3- the 3rd, the sun gears of T4- the 4th, Q1- first
Gear ring, the gear rings of Q2- second, the gear rings of Q3- the 3rd, the gear rings of Q4- the 4th, J1- the first row carrier, the planet carriers of J2- second, J3- the 3rd
Planet carrier, J4- fourth line carrier, the brakes of M1- first, M2- second brakes, the brakes of M3- the 3rd, the brakes of M4- the 4th,
C1- first clutches, C2- second clutches.
Specific embodiment
Technical scheme is described further below in conjunction with drawings and Examples, but required protection domain
It is not limited to described；
As shown in figure 1, the seven gear planetary automatic transmissions that the present invention is provided, including first planet row P1, the second planet row
P2, third planet row P3 and fourth planet row's tetra- planet rows of P4, first planet row P1 include the first sun gear T1, first
Gear ring Q1, the first row carrier J1, the second planet row P2 includes the second sun gear T2, the second gear ring Q2, the second planet carrier J2,
The third planet row P3 includes the 3rd sun gear T3, the 3rd gear ring Q3, the third line carrier J3, and the fourth planet row P4 includes
4th sun gear T4, the 4th gear ring Q4, fourth line carrier J4；
The input link 1 being connected with input shaft and output shaft respectively and output link 2；
First driving member 3, the second driving member 4, the 3rd driving member 5, the 4th driving member 6 and the 5th driving member
7 five driving members；
First brake Z1, second brake Z2, tetra- brakes of the 3rd brake Z3 and the 4th brake Z4；
Two clutches of first clutch C1 and second clutch C2；
The input link 1 connects the outer hub of the first sun gear T1, the outer hub of first clutch C1 and second clutch C2；
The output link 2 connects the 4th sun gear T4 and the third line carrier J3；First driving member 3 connect the first gear ring Q1 and
The interior hub of the first brake M1；The connection of second driving member 4 the first row carrier J1, the second gear ring Q2 and second brake M2
Interior hub；3rd driving member 5 connects the second planet carrier J2, the 3rd gear ring Q3, fourth line carrier J4, second clutch C2
Interior hub and the 3rd brake M3 interior hub；The connection of 4th driving member 6 the 4th gear ring Q4's and the 4th brake M4 is interior
Hub；5th driving member 7 connects the second sun gear T2, the interior hub of the 3rd sun gear T3 and first clutch C1.
Planetary gear in the first planet row P1, the second planet row P2, third planet row P3 and fourth planet row P4
Number is single star planet row, can simplify gearbox designs, mitigates weight, realizes lightweight requirements.
The k value of the first planet row P1, the second planet row P2, third planet row P3 and fourth planet row P4 is 1.5
~3.7, the integrally-built compactedness of change speed gear box is facilitated implementation, the volume and weight of change speed gear box is reduced, and then realize lightweight.
Embodiment：
The planetary automatic transmission of the present embodiment is applied to road vehicle.Wherein each planet row is arranged in order, each row
Connected using driving member between star row, input shaft is connected with input link 1, generally the turbine wheel shaft of fluid torque-converter, is used for
The power Jing fluid torque-converters of electromotor are reached into variator.Output shaft is connected with output link 2, by transfer gear or differential mechanism
Power is reached into forward and backward bridge or left and right driving wheel.The variator is full symmetric relative to center of rotation, is eliminated in Fig. 1
The latter half of center of rotation, no longer explains when below describing.
First planet row P1 includes the first sun gear T1, the first gear ring Q1 and tri- revolving parts of the first row carrier J1, first
Sun gear T1 is connected with input power with input link 1, can brake the first gear ring Q1 so that the first row by the first brake M1
The rotating speed of input link 1 is carried out deceleration output by carrier J1 as middle output.
Second planet row P2 includes the second sun gear T2, the second gear ring Q2 and tri- revolving parts of the second planet carrier J2, can be
Reduction gear brakes gear ring Q2 so that the second planet carrier J2 is used as middle output by second sun by second brake M2 second
The rotating speed of wheel T2 carries out deceleration output., or the second planet carrier J2 is braked by the 3rd brake M3 so that second too in speedup shelves
The rotating speed of the second gear ring Q2 is carried out speedup output in reverse gear by sun wheel T2 as middle output.
Third planet row P3 includes the 3rd sun gear T3, the 3rd gear ring Q3 and tri- revolving parts of the third line carrier J3, can lead to
Cross the 3rd brake M3 and brake the 3rd gear ring Q3 so that the third line carrier J3 enters the rotating speed of the 3rd sun gear T3 as output
Row slows down and exports, or the rotating speed of the 3rd gear ring Q3 and the 3rd sun gear T3 is entered by fourth line carrier J4 as middle output
Row slows down and exports.
Fourth planet row P4 includes the 4th sun gear T4, the 4th gear ring Q4 and tri- revolving parts of fourth line carrier J4, can lead to
Cross the 3rd brake M3 and brake fourth line carrier J4 so that the 4th sun gear T4 enters the rotating speed of the 4th gear ring Q4 as output
Row slows down and exports.
First brake M1 is used to brake the first driving member 3, and second brake M2 is used to brake the second driving member 4,
3rd brake M3 is used to brake the 3rd driving member 5, and the 4th brake M4 is used to brake the 4th driving member 6.First clutch
Device C1 is used to connect the driving member 7 of input link 1 and the 5th, and second clutch C2 is used to connect the transmission of input link 1 and the 3rd
Component 5.Brake and clutch are multiple-piece friction manipulation part, drive piston to be pressurizeed using hydraulic oil.The behaviour of each shelves
Vertical scheme is realized as shown in table 1：
Table 1：7-speed automatic transmission implementation and corresponding gear ratio, a ratio illustrate table
" o " represents that controls is combined in table.
It is described in detail referring to the example of 1 couple of present invention of Fig. 1 and Biao, it should be noted that, transmission described herein
Than the ratio for referring to input shaft rotating speed and output rotating speed, planet row k value refer to the gear ring number of teeth of planet row and the sun gear number of teeth it
Than.
When first clutch C1 and the 4th brake M4 are combined, the 5th driving member 7 and the input structure as input shaft
The integral-rotation of part 1, the 4th driving member 6 is braked, and is realized one grade " 1st ".
When first clutch C1 and the 3rd brake M3 are combined, the 5th driving member 7 and the input structure as input shaft
The integral-rotation of part 1, the 3rd driving member 5 is braked, and realizes two grade " 2nds " less than one grade of " 1st " gear ratio.
When first clutch C1 and second brake M2 are combined, the 5th driving member 7 and the input structure as input shaft
The integral-rotation of part 1, the second driving member 4 is braked, and realizes the third gear " 3rd " less than two grades of " 2nd " gear ratios.
When first clutch C1 and the first brake M1 are combined, the 5th driving member 7 and the input structure as input shaft
The integral-rotation of part 1, the first driving member 3 is braked, and realizes the fourth gear " 4th " less than third gear " 3rd " gear ratio.
When first clutch C1 and second clutch C2 are combined, the 3rd driving member 5 and the 5th driving member 7 simultaneously with
As the integral-rotation of input link 1 of input shaft, five grade " 5th " less than fourth gear " 4th " gear ratio is realized.
When second clutch C2 and the first brake M1 are combined, the 3rd driving member 5 and the input structure as input shaft
The integral-rotation of part 1, the first driving member 3 is braked, and realizes six grade " 6ths " less than five grades of " 5th " gear ratios.
When second clutch C2 and second brake M2 are combined, the 3rd driving member 5 and the input structure as input shaft
The integral-rotation of part 1, the second driving member 4 is braked, and realizes seven grade " 7ths " less than six grades of " 6th " gear ratios.
When the first brake M1 and the 3rd brake M3 are combined, the first driving member 3 and the 3rd driving member 5 are braked,
Realize reverse gear " R1 ".
When the first brake M1 and the 4th brake M4 are combined, the first driving member 3 and the 4th driving member 6 are braked,
Realize reverse gear " R2 ".
Each shelves gear ratio is determined by the k value of four planet rows.For example, k1 ≈ 1.712, k2 ≈ 2.294, the and of k3 ≈ 3.696
During k4 ≈ 1.640, you can obtain each shelves gear ratio shown in table 1, compare substantially suitable between adjacent gear positions gear ratio, meanwhile, have
The gear ratio of two reverse gears is respectively R1：- 5.552 and R2：- 2.421, vehicle can be made to make to be issued in different operating modes in retroversion
Optimum power is used.
Four planet rows in the present embodiment are the simple planet row of single star, and k value is in the range of 1.5~3.7, can make four
The radial dimension of individual planet row is less, meanwhile, obtain overall performance preferably ratio characteristic.
Above-described embodiment is only a preferred embodiment of the present invention, and in for limiting protection scope of the present invention, it is all
Deformation, modification or equivalent for being made on the basis of technical scheme etc., all should fall into the protection model of the present invention
Enclose.
Claims (3)
1. a kind of seven planetary automatic transmission is kept off, it is characterised in that：Including
First planet row (P1), the second planet row (P2), third planet row (P3) and fourth planet row's (P4) four planet rows, institute
Stating first planet row (P1) includes the first sun gear (T1), the first gear ring (Q1), the first row carrier (J1), second planet row
(P2) the second sun gear (T2), the second gear ring (Q2), the second planet carrier (J2) are included, third planet row (P3) includes the 3rd
Sun gear (T3), the 3rd gear ring (Q3), the third line carrier (J3), fourth planet row (P4) include the 4th sun gear (T4),
4th gear ring (Q4), fourth line carrier (J4)；
The input link (1) being connected with input shaft and output shaft respectively and output link (2)；
First driving member (3), the second driving member (4), the 3rd driving member (5), the 4th driving member (6) and the 5th transmission
(7) five driving members of component；
First brake (Z1), second brake (Z2), the 3rd brake (Z3) and the 4th four brakes of brake (Z4)；
Two clutches of first clutch (C1) and second clutch (C2)；
The input link (1) connects the first sun gear (T1), the outer hub of first clutch (C1) and second clutch (C2)
Outer hub；The output link (2) connects the 4th sun gear (T4) and the third line carrier (J3)；First driving member (3) is even
Connect the interior hub of the first gear ring (Q1) and the first brake (M1)；Second driving member (4) connection the first row carrier (J1), the
The interior hub of two gear rings (Q2) and second brake (M2)；3rd driving member (5) connects the second planet carrier (J2), the 3rd tooth
The interior hub of circle (Q3), fourth line carrier (J4), the interior hub of second clutch (C2) and the 3rd brake (M3)；4th transmission
Component (6) connects the interior hub of the 4th gear ring (Q4) and the 4th brake (M4)；5th driving member (7) connects second sun
The interior hub of wheel (T2), the 3rd sun gear (T3) and first clutch (C1).
2. according to claim 1 seven planetary automatic transmission is kept off, it is characterised in that：First planet row (P1), the
Planetary gear number in two planet rows (P2), third planet row (P3) and fourth planet row (P4) is single star planet row.
3. according to claim 1 seven planetary automatic transmission is kept off, it is characterised in that：First planet row (P1), the
The k value of two planet rows (P2), third planet row (P3) and fourth planet row (P4) is 1.5~3.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611170595.0A CN106678296A (en) | 2016-12-16 | 2016-12-16 | Seven-gear planet automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611170595.0A CN106678296A (en) | 2016-12-16 | 2016-12-16 | Seven-gear planet automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678296A true CN106678296A (en) | 2017-05-17 |
Family
ID=58870639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611170595.0A Pending CN106678296A (en) | 2016-12-16 | 2016-12-16 | Seven-gear planet automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678296A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500390A (en) * | 2019-07-15 | 2019-11-26 | 中国北方车辆研究所 | One kind seven keeps off planetary automatic transmission |
| CN113108040A (en) * | 2021-03-29 | 2021-07-13 | 北方汤臣传动科技有限公司 | Eight-gear automatic transmission of mining truck integrating hydraulic retarber arranged in parallel shafts |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913597A (en) * | 2012-10-16 | 2013-02-06 | 中国北方车辆研究所 | Seven-level planet automatic speed changer |
| CN104595436A (en) * | 2015-02-13 | 2015-05-06 | 中国北方车辆研究所 | Seven-gear planetary transmission for automatic transmission case |
| US20150219188A1 (en) * | 2011-12-19 | 2015-08-06 | Allison Transmission Inc. | Automatic Transmission With Improved Gear Arrangement |
| CN205013605U (en) * | 2015-06-19 | 2016-02-03 | 陕西法士特齿轮有限责任公司 | Derailleurs that keep off more and epicyclie gear thereof |
-
2016
- 2016-12-16 CN CN201611170595.0A patent/CN106678296A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150219188A1 (en) * | 2011-12-19 | 2015-08-06 | Allison Transmission Inc. | Automatic Transmission With Improved Gear Arrangement |
| CN102913597A (en) * | 2012-10-16 | 2013-02-06 | 中国北方车辆研究所 | Seven-level planet automatic speed changer |
| CN104595436A (en) * | 2015-02-13 | 2015-05-06 | 中国北方车辆研究所 | Seven-gear planetary transmission for automatic transmission case |
| CN205013605U (en) * | 2015-06-19 | 2016-02-03 | 陕西法士特齿轮有限责任公司 | Derailleurs that keep off more and epicyclie gear thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500390A (en) * | 2019-07-15 | 2019-11-26 | 中国北方车辆研究所 | One kind seven keeps off planetary automatic transmission |
| CN113108040A (en) * | 2021-03-29 | 2021-07-13 | 北方汤臣传动科技有限公司 | Eight-gear automatic transmission of mining truck integrating hydraulic retarber arranged in parallel shafts |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
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| RJ01 | Rejection of invention patent application after publication |