CN101956792B - Four-forward two-reverse planetary transmission - Google Patents
Four-forward two-reverse planetary transmission Download PDFInfo
- Publication number
- CN101956792B CN101956792B CN200910161318A CN200910161318A CN101956792B CN 101956792 B CN101956792 B CN 101956792B CN 200910161318 A CN200910161318 A CN 200910161318A CN 200910161318 A CN200910161318 A CN 200910161318A CN 101956792 B CN101956792 B CN 101956792B
- Authority
- CN
- China
- Prior art keywords
- planet
- row
- sun gear
- gear
- fixedly connected
- 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.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 26
- 239000000969 carrier Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Landscapes
- Structure Of Transmissions (AREA)
Abstract
The invention belongs to a planetary transmission for an automatic gearbox, which can realize four forward gears and two reverse gears by using relatively fewer planet gear sets. The planetary transmission consists of three planet gear sets, wherein basic components, such as gear rings, planet carriers and sun wheels, of each set are directly or indirectly connected with input shafts and output shafts (and a box body) by using five control parts comprising two clutches and three brakes. The planetary transmission simplifies a transmission diagram and reduces the size and weight of the automatic gearbox; the gears are shifted only by replacing one control part, so that a gear shifting controller can be easily designed; and planet gears have relatively lower relative-rotating speeds and structures easy to design.
Description
Technical field
The present invention relates to mechanical design field, be specifically related to a kind of four preceding two backward star speed changers.
Background technique
The gear of automatic transmission case changes the rotating speed and the moment of torsion of fluid torque converter output, and rotating speed after changing and moment of torsion are exported through output shaft.As everyone knows; For manual transmission; Gear too much can cause the driver tired in buty shifting, and therefore, the gear of manual transmission can not be too much; So the planetary transmission of present four forward gearss and five forward gearss just is being developed and is applying in the vehicle, but at present domestic also not about four preceding two planetary transmission and the designs thereof of falling.
When having confirmed velocity ratio series, the transmission sketch that chooses is a very important job, and this is because efficient, size and the reliability of speed changer depend on the transmission sketch to a great extent.
Summary of the invention
The purpose of this invention is to provide a kind of four preceding two backward star speed changers, this planetary transmission can be realized four forward gearss and two reverse gears with less planet row.
Realize the technological scheme of the object of the invention: a kind of four preceding two backward star speed changers comprise input shaft, output shaft, three planet rows, five operator; Five operator are connected each planet row's basic building block with input shaft, output shaft, realize that four preceding two fall speed Control, and described three planets row is respectively first planet and arranges, and second planet is arranged and the third line star is arranged; First planet row has three basic building block gear ring R1, planet carrier PC1 and sun gear S1, planet wheel P1; Second planet row has three basic building block gear ring R2, planet carrier PC2 and sun gear S2, planet wheel P2; The 3rd planet row has three basic building block gear ring R3, planet carrier PC3, sun gear S3, planet wheel P3; Described first planet row's planet wheel P1 while and gear ring R1, sun gear S1 are meshed, and planet wheel P1 is contained in the planet carrier PC1; Second planet row's planet wheel P2 while and gear ring R2, sun gear S2 are meshed, and planet wheel P2 is contained in the planet carrier PC2; The third line star row's planet wheel P3 while and gear ring R3, sun gear S3 are meshed, and planet wheel P3 is contained in the planet carrier PC3.
Five above-mentioned operator comprise two clutches and three breaks.
Hub is fixedly connected with secondary sun gear S2, the 3rd row's sun gear S3 in the above-mentioned clutch; The outer hub of clutch is fixedly connected with first row's sun gear S1, the interior hub of break B3; The outer hub of B3 and the housing of gearbox are fixedly connected, and the interior hub of break B2 and a row's planet carrier PC1, two rows' gear ring R2 are fixedly connected, and the outer hub of break B2 and the housing of gearbox are fixedly connected; The interior hub of break B1 and two rows' planet carrier PC2, three rows' gear ring R3 are fixedly connected, and the outer hub of B1 and the housing of gearbox are fixedly connected.
Technique effect of the present invention: (1) in planetary transmission of the present invention, D1 only need change an operator to R1, R1 to each gear of R2 to D4, D4 to D3, D3 to D2, D2 just can realize forward/backward respectively, is easy to design controller for shifting.(2) transmission sketch of the present invention is simple, and the size of automatic transmission case is little, gearbox in light weight.(3) the planet wheel relative rotation speed is lower, is easy to structural design.
Description of drawings
Fig. 1 is the sketch that is used for the planetary transmission of automatic transmission case, and this figure has described the concrete scheme of planetary transmission and each planet row's interior velocity ratio.
Fig. 2 is the relative rotation speed planimetric map of each basic building block in the planetary transmission, from figure, can obtain the relative rotation speed of each member in each gear intuitively.
Among the figure: the 1-input shaft; The 2-output shaft; 3-first row's sun gear; 4-first rows of planetary frame and two toothrow circles; The 5-first toothrow circle, three toothrow circles, two-row planetary frame; 6-two, three row's sun gears; 8-clutch Cl; 9-clutch CH; The R1-gear ring; The R2-gear ring; The R3-gear ring; The PC1-planet carrier; The PC2-planet carrier; The PC3-planet carrier; The S1-sun gear; The S2-sun gear; The S3-sun gear; The P1-planet wheel; The P2-planet wheel; The P3-planet wheel.
Embodiment
Below in conjunction with accompanying drawing and instance the planetary transmission that is used for automatic transmission case provided by the present invention is described further.
To shown in Figure 2, this planet speed changer can be realized four each forward gearss and two reverse gears like Fig. 1, and it is made up of three planet rows.First simple planet row is made up of gear ring R1, planet carrier PC1, sun gear S1 and planet wheel P1, planet wheel P1 while and gear ring R1, sun gear S1 engagement, and planet carrier PC1 supports planet wheel P1.Second simple planet row is made up of gear ring R2, planet carrier PC2, sun gear S2 and planet wheel P2; Planet wheel P2 while and gear ring R2, sun gear S2 engagement, planet carrier PC2 supports planet wheel P2, and the 3rd planet row has three basic building block (gear ring R3; Planet carrier PC3; Sun gear S3) and a planet wheel P3, ` planet wheel P3 simultaneously with gear ring R3, sun gear S3 engagement, planet carrier PC3 support planet wheel P3.
Realize the D1 forward gears in conjunction with operator CL and B1; Realize the D2 forward gears in conjunction with operator CL and B2, realize the D3 forward gears, realize the D4 forward gears in conjunction with operator CH and CL in conjunction with operator CL and B3; Realize the R1 reverse gear in conjunction with operator CH and B1, realize the R2 reverse gear in conjunction with operator CH and B2.
In this planet speed changer, operator C1, C2 and C3 are break, and operator CH and CL are clutch, clutch CH connector element 3 and 1, clutch CL connector element 6 and 1.
Table 1 to table 3 is the test data of this planetary transmission.From table, can know: (1) in planetary transmission of the present invention, D1 only need change an operator to R1, R1 to each gear of R2 to D4, D4 to D3, D3 to D2, D2, is easy to design controller for shifting.(2) the planet wheel relative rotation speed is lower, is easy to structural design.(3) driving torque is little, requires low to structure and material like this.Hub is fixedly connected with secondary sun gear S2, the 3rd row's sun gear S3 in the clutch CL; The outer hub of clutch CH is fixedly connected with first row's sun gear S1, the interior hub of break B3; The outer hub of break B3 and the housing of gearbox are fixedly connected, and the interior hub of break B2 and a row's planet carrier PC1, two rows' gear ring R2 are fixedly connected, and the outer hub of break B2 and the housing of gearbox are fixedly connected; The interior hub of break B1 and two rows' planet carrier PC2, three rows' gear ring R3 are fixedly connected, and the outer hub of B1 and the housing of gearbox are fixedly connected.Structural design is compact, and gearbox designs is little, in light weight.
Table 1 planetary transmission gear and velocity ratio
Table 2 member relative rotation speed
Table 3 member relative moment
Claims (1)
1. preceding two backward star speed changers is characterized in that this planetary transmission comprises input shaft (1), output shaft (2), three planet rows, five operator; Five operator are connected each planet row's basic building block with input shaft (1), output shaft (2), realize that four preceding two fall speed Control, and described three planets row is respectively first planet and arranges, and second planet is arranged and the third line star is arranged; First planet row has three basic building blocks: gear ring R1, planet carrier PC1 and sun gear S1, and planet wheel P1; Second planet row has three basic building blocks: gear ring R2, planet carrier PC2 and sun gear S2, and planet wheel P2; The 3rd planet row has three basic building blocks: gear ring R3, planet carrier PC3 and sun gear S3, and planet wheel P3; Described first planet row's planet wheel P1 while and gear ring R1, sun gear S1 are meshed, and planet wheel P1 is contained in the planet carrier PC1; Second planet row's planet wheel P2 while and gear ring R2, sun gear S2 are meshed, and planet wheel P2 is contained in the planet carrier PC2; The third line star row's planet wheel P3 while and gear ring R3, sun gear S3 are meshed, and planet wheel P3 is contained in the planet carrier PC3; Described five operator comprise two clutch CL and CH, three break B1, B2 and B3; Hub is fixedly connected with secondary sun gear S2, the 3rd row's sun gear S3 in the described clutch CL; The outer hub of clutch CH is fixedly connected with first row's sun gear S1, the interior hub of break B3; The outer hub of break B3 and the housing of gearbox are fixedly connected, and the interior hub of break B2 and a row's planet carrier PC1, two rows' gear ring R2 are fixedly connected, and the outer hub of break B2 and the housing of gearbox are fixedly connected; The interior hub of break B1 and two rows' planet carrier PC2, three rows' gear ring R3 are fixedly connected, and the outer hub of break B1 and the housing of gearbox are fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910161318A CN101956792B (en) | 2009-07-20 | 2009-07-20 | Four-forward two-reverse planetary transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910161318A CN101956792B (en) | 2009-07-20 | 2009-07-20 | Four-forward two-reverse planetary transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101956792A CN101956792A (en) | 2011-01-26 |
| CN101956792B true CN101956792B (en) | 2012-08-29 |
Family
ID=43484325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910161318A Expired - Fee Related CN101956792B (en) | 2009-07-20 | 2009-07-20 | Four-forward two-reverse planetary transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101956792B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191568A (en) * | 2017-07-04 | 2017-09-22 | 广西柳工机械股份有限公司 | Mechanical-hydraulic mixed drive gearbox |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234012A (en) * | 2013-05-13 | 2013-08-07 | 周庆华 | Series-connection planetary gear relay type automatic transmission |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6712731B1 (en) * | 2002-09-13 | 2004-03-30 | General Motors Corporation | Transmission mechanisms with three planetary gear sets |
| CN1687614A (en) * | 2004-06-05 | 2005-10-26 | 付宪生 | Modified dead axle type hydraulic automatic gear shifting with six shift gears |
| DE102004041509A1 (en) * | 2004-08-27 | 2006-03-16 | Zf Friedrichshafen Ag | Automobile multi-speed gearbox, with eight forward and two reverse gears, has three planet wheel sets and six switch units between the drive input and output shafts |
| CN1776253A (en) * | 2005-11-24 | 2006-05-24 | 贵州凯星液力传动机械有限公司 | Transmission for hydraulic variable speed device |
-
2009
- 2009-07-20 CN CN200910161318A patent/CN101956792B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6712731B1 (en) * | 2002-09-13 | 2004-03-30 | General Motors Corporation | Transmission mechanisms with three planetary gear sets |
| CN1687614A (en) * | 2004-06-05 | 2005-10-26 | 付宪生 | Modified dead axle type hydraulic automatic gear shifting with six shift gears |
| DE102004041509A1 (en) * | 2004-08-27 | 2006-03-16 | Zf Friedrichshafen Ag | Automobile multi-speed gearbox, with eight forward and two reverse gears, has three planet wheel sets and six switch units between the drive input and output shafts |
| CN1776253A (en) * | 2005-11-24 | 2006-05-24 | 贵州凯星液力传动机械有限公司 | Transmission for hydraulic variable speed device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191568A (en) * | 2017-07-04 | 2017-09-22 | 广西柳工机械股份有限公司 | Mechanical-hydraulic mixed drive gearbox |
| CN107191568B (en) * | 2017-07-04 | 2019-07-30 | 广西柳工机械股份有限公司 | Mechanical-hydraulic mixed drive gearbox |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101956792A (en) | 2011-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10247280B2 (en) | Four planetary-gearset step-ratio automatic transmission | |
| KR100829298B1 (en) | Power train of automatic transmission | |
| CN104896038B (en) | Multi-shifting speed variator and its epicyclic train | |
| US20090017959A1 (en) | Vehicle transmission with continuously variable transmission ratio | |
| KR101438637B1 (en) | Gear train of automatic transmission for vehicles | |
| US8282524B2 (en) | Transmission device for distributing a drive torque to at least two output shafts | |
| US9291244B2 (en) | Nine speed automatic transmission | |
| US9103414B1 (en) | Six shift-element step-ratio automatic transmission | |
| CN103807379A (en) | Quad-clutch multi-speed transmission | |
| EP2167843A1 (en) | Dual clutch transmission with planetary gearset | |
| CN104235279B (en) | Multi-speed transmission | |
| CN102913597A (en) | Seven-level planet automatic speed changer | |
| CN103807378A (en) | Triple clutch multi-speed transmission | |
| KR101509733B1 (en) | Planetary gear train of automatic transmission for vehicles | |
| CN105026794A (en) | Multi-stage planetary transmission | |
| CN101956793B (en) | Six-drive and three-reverse planet speed changer | |
| CN103807387A (en) | Triple clutch multi-speed transmission | |
| CN107606080A (en) | A kind of seven grades of electric-controlled mechanical planetary automatic transmissions for automatic gear-box | |
| CN105485271B (en) | A kind of automatic transmission and its epicyclic train | |
| JP5030504B2 (en) | Multistage automatic transmission | |
| KR101509735B1 (en) | Planetary gear train of automatic transmission for vehicles | |
| CN102221071A (en) | Multi-speed transmission having four planetary gear sets | |
| US20160265628A1 (en) | Automatic transmission for vehicle | |
| CN105299156A (en) | Multi-gear transmission | |
| CN102628495A (en) | Six-gear planet automatic gearbox |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20200720 |