CN118224272A - Multistage formula hydraulic machinery infinitely variable transmission system - Google Patents
Multistage formula hydraulic machinery infinitely variable transmission system Download PDFInfo
- Publication number
- CN118224272A CN118224272A CN202410389277.1A CN202410389277A CN118224272A CN 118224272 A CN118224272 A CN 118224272A CN 202410389277 A CN202410389277 A CN 202410389277A CN 118224272 A CN118224272 A CN 118224272A
- Authority
- CN
- China
- Prior art keywords
- gear
- stage
- shaft assembly
- hydraulic
- hydraulic pump
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 48
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 230000013011 mating Effects 0.000 claims description 7
- 230000009347 mechanical transmission Effects 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract description 2
- 230000007935 neutral effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a multistage hydraulic machinery stepless speed change transmission system, which relates to the technical field of wheel type engineering vehicle hydraulic machinery stepless speed change transmission systems, and comprises an input shaft assembly, a matched output shaft assembly, an output shaft assembly and a hydraulic pump shaft assembly; the input shaft assembly is in transmission connection with the matched output shaft assembly, the output shaft assembly and the hydraulic pump shaft assembly respectively. The hydraulic mechanical stepless speed change transmission system can realize stepless speed regulation and continuous reversing, has no gear shift impact, good operability and high operation efficiency, can improve the dynamic property or fuel economy of the whole vehicle, and can realize larger torque output when the rotating speed of an engine is lower on one hand, and has good dynamic property; on the other hand, the transmission efficiency is higher, even pure mechanical transmission is adopted under certain working conditions, the energy conservation is good, the power transmission has both hydraulic transmission and mechanical transmission, the duty ratio of the mechanical transmission is larger, the displacement requirements on the pump and the motor are reduced, and the pump motor with lower displacement can be supported.
Description
Technical Field
The invention relates to the technical field of a wheel type engineering vehicle hydraulic machinery stepless speed change transmission system, in particular to a multistage hydraulic machinery stepless speed change transmission system.
Background
At present, hydraulic transmission and power shift speed change devices are commonly adopted for medium and large-sized loading machines and land leveling machines in China, for example, a power shift speed change device suitable for high-power vehicles is disclosed in patent with publication number CN202971769U, and the power shift speed change device is particularly suitable for engineering vehicles such as high-power mine cars, land leveling machines and loading machines. The speed variator consists of one common axis gear train and one planetary gear train. The fixed-axis gear train consists of six shafts, five clutches, five idler gears and six fixed gears. The planetary row is composed of a sun gear, a planetary wheel, a planetary carrier, an inner gear ring and a heavy-duty clutch. The utility model fully utilizes the advantages of the ordinary gear train and the planetary transmission, and when the vehicle is in a high-speed light-load working condition, the power is output by the ordinary gear train; when the vehicle is in a low-speed heavy-load working condition, power is transmitted to the planetary gear train from the ordinary gear train and then output through the planetary gear train. The transmission provided by the utility model can realize six forward gears and two backward gears, and has the advantages of simple structure and capability of realizing high-power and high-torque output.
The existing gear shifting speed changer has the problems of low transmission efficiency, low working efficiency, high energy consumption and difficult emission reaching standards; some loaders have schemes of electric transmission, but have high cost, limited use occasions and difficult market popularization.
Disclosure of Invention
In order to solve the technical problems, the invention provides a multistage hydraulic mechanical stepless speed change transmission system, which is used for improving transmission efficiency, improving control performance and improving working efficiency.
In order to achieve the above object, the present invention provides the following solutions:
The invention provides a multistage hydraulic machinery stepless speed change transmission system, which comprises an input shaft assembly, a matched output shaft assembly, an output shaft assembly and a hydraulic pump shaft assembly; the input shaft assembly comprises a driving gear, an input shaft shifting sliding sleeve, a first-stage planet carrier, a first-stage annular gear, a first-stage planet gear, a second-stage annular gear, a second-stage planet carrier, a second-stage planet gear, a sun gear, a hydraulic motor gear and a hydraulic motor; the driving gear is arranged at one end of the driving shaft, and the input shaft shifting sliding sleeve is arranged at the other end of the driving shaft; the first-stage planet carrier and the first-stage annular gear are both coaxially arranged with the driving shaft, one end of the first-stage planet carrier is in transmission connection with the input shaft gear shifting sliding sleeve, the first-stage planet gear is arranged in the middle of the first-stage planet carrier, and the first-stage planet gear is meshed with the first-stage annular gear; the other end of the primary planet carrier is coaxially connected with the secondary annular gear, the secondary annular gear is meshed with the secondary planet gear, and the secondary planet gear is arranged on the secondary planet carrier; the sun gear is coaxially connected with the hydraulic motor gear, the sun gear is meshed with the secondary planetary gear, and the hydraulic motor gear is coaxially connected with the hydraulic motor; the driving gear is in transmission connection with the matched output shaft assembly and the hydraulic pump shaft assembly; the output shaft assembly comprises a first-stage gear, a first-stage gear shifting sliding sleeve, a second-stage gear shifting sliding sleeve, a third-stage gear and a third-stage gear shifting sliding sleeve which are sequentially arranged on the output shaft; the primary gear is meshed with the primary annular gear; the secondary gear is meshed with a gear at the end part of the secondary planet carrier; the tertiary gear is meshed with the hydraulic motor gear.
Optionally, the matched output shaft assembly includes a matched output driven gear, and the matched output driven gear is meshed with the driving gear.
Optionally, the hydraulic pump shaft assembly includes a hydraulic pump driven gear and a hydraulic pump; the hydraulic pump driven gear is in transmission connection with the hydraulic pump, and the hydraulic pump is connected with the hydraulic motor through a hydraulic pipeline.
Optionally, the hydraulic pump is a closed swash plate variable plunger pump.
Optionally, the input shaft shift sliding sleeve is connected with the input shaft through a spline.
Optionally, the first-stage gear shifting sliding sleeve, the second-stage gear shifting sliding sleeve and the third-stage gear shifting sliding sleeve are respectively connected with the output shaft through splines.
Optionally, the hydraulic motor is a tilt-axis variable displacement plunger motor.
Compared with the prior art, the invention has the following technical effects:
1. The hydraulic mechanical stepless speed change transmission system can realize stepless speed regulation and continuous reversing according to driving requirements, has no gear shifting impact, and has good operability and high operation efficiency.
2. The hydraulic mechanical stepless speed change transmission system can control the engine to work at an optimal power point or an optimal oil consumption point according to the resistance change in real time, and improves the power performance or the fuel economy of the whole vehicle.
3. The hydraulic mechanical stepless speed change transmission system has the advantages of both hydraulic transmission and mechanical transmission, and can realize larger torque output when the rotation speed of an engine is lower, so that the dynamic property is good; on the other hand, the transmission efficiency is higher, even the transmission is purely mechanical under certain working conditions, and the energy conservation is good.
4. The hydraulic mechanical stepless speed change transmission system has the advantages that the power transmission is both hydraulic transmission and mechanical transmission, the mechanical transmission has larger duty ratio, the displacement requirements on the pump and the motor are reduced, and the pump motor with lower displacement can be supported.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1, schematic diagram of a hydromechanical continuously variable transmission;
In the figure: 1. an input shaft assembly; 101. a drive gear; 102. an input shaft shift sliding sleeve; 103. a primary planet carrier; 104. a primary ring gear; 105. a primary planetary gear; 106. a secondary ring gear; 107. a secondary planet carrier; 108. a secondary planetary gear; 109. a sun gear; 110. a hydraulic motor gear; 111. a hydraulic motor;
2. a mating output shaft assembly; 201. a matched output driven gear;
3. An output shaft assembly; 301. a primary gear; 302. a first-level shift sliding sleeve; 303. a secondary gear; 304. a second-stage shift sliding sleeve; 305. a third-stage gear; 306. three-stage gear shifting sliding sleeves;
4. A hydraulic pump shaft assembly; 401. a hydraulic pump driven gear; 402. a hydraulic pump.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the present embodiment provides a multistage hydraulic machinery continuously variable transmission system, which comprises an input shaft assembly 1, a matched output shaft assembly 2, an output shaft assembly 3 and a hydraulic pump shaft assembly 4; the input shaft assembly 1 comprises a driving gear 101, an input shaft shifting sliding sleeve 102, a first-stage planet carrier 103, a first-stage annular gear 104, a first-stage planet gear 105, a second-stage annular gear 106, a second-stage planet carrier 107, a second-stage planet gear 108, a sun gear 109, a hydraulic motor gear 110 and a hydraulic motor 111; the driving gear 101 is arranged at one end of the driving shaft, the input shaft shifting sliding sleeve 102 is arranged at the other end of the driving shaft, and the input shaft shifting sliding sleeve 102 is connected with the input shaft through a spline; the first-stage planet carrier 103 and the first-stage annular gear 104 are coaxially arranged with the driving shaft, one end of the first-stage planet carrier 103 is used for being in transmission connection with the input shaft gear shifting sliding sleeve 102, a first-stage planet gear 105 is arranged in the middle of the first-stage planet carrier 103, and the first-stage planet gear 105 is meshed with the first-stage annular gear 104; the other end of the primary planet carrier 103 is coaxially connected with a secondary annular gear 106, the secondary annular gear 106 is meshed with a secondary planet gear 108, and the secondary planet gear 108 is arranged on the secondary planet carrier 107; the sun gear 109 is coaxially connected with the hydraulic motor gear 110, the sun gear 109 is meshed with the secondary planetary gear 108, and the hydraulic motor gear 110 is coaxially connected with the hydraulic motor 111; the driving gear 101 is in transmission connection with the matched output shaft assembly 2 and the hydraulic pump shaft assembly 4; the output shaft assembly 3 comprises a first-stage gear 301, a first-stage gear shifting sliding sleeve 302, a second-stage gear 303, a second-stage gear shifting sliding sleeve 304, a third-stage gear 305 and a third-stage gear shifting sliding sleeve 306 which are sequentially arranged on the output shaft; primary gear 301 meshes with primary ring gear 104; the secondary gear 303 meshes with a gear at the end of the secondary planet carrier 107; the tertiary gear 305 meshes with the hydraulic motor gear 110. The hydraulic motor 111 is a tilt-axis variable displacement plunger motor. The first-stage shift sleeve 302, the second-stage shift sleeve 304, and the third-stage shift sleeve 306 are respectively splined to the output shaft.
The mating output shaft assembly 2 includes a mating output driven gear 201, the mating output driven gear 201 being meshed with the drive gear 101.
The hydraulic pump shaft assembly 4 includes a hydraulic pump driven gear 401 and a hydraulic pump 402; the hydraulic pump driven gear 401 is in driving connection with the hydraulic pump 402, and the hydraulic pump 402 is connected with the hydraulic motor 111 through a hydraulic pipeline. The hydraulic pump 402 is a closed swash plate variable displacement plunger pump.
The working process of the hydraulic mechanical stepless speed change transmission system in the embodiment is as follows:
the engine inputs power to the input shaft assembly 1, and the driving gear 101 on the input shaft assembly 1 is meshed with the matched output driven gear 201 of the matched output shaft assembly 2, so that matched output is realized. The driving gear 101 is meshed with a driven gear 401 of the hydraulic pump, and drives the hydraulic pump 402 to operate. The hydraulic pump is connected with the hydraulic motor through a pipeline, the hydraulic pump drives the hydraulic motor to work, the hydraulic motor gear 110 and the sun gear 109 realize the power output of the hydraulic motor, and the hydraulic motor gear 110 is meshed with the three-stage gear 305 to realize the power transmission. The primary planet gears 105 mesh with the sun gear 109 and the primary ring gear 104 to effect power transfer. The secondary planet gears 108 mesh with the sun gear 109 and the secondary ring gear 106 to effect power transfer. The primary annular gear 104 is meshed with the primary gear 301, and the secondary planet carrier 107 is meshed with the secondary gear 303, so that power transmission is realized.
When the input shaft shift sleeve 102, the first shift sleeve 302, the second shift sleeve 304, and the third shift sleeve 306 are all in neutral, no power output is neutral.
When the three-stage shifting sleeve 306 slides to the left, K1 is combined and the three-stage gear 305 is fixedly connected with the output shaft when the rest of the shifting sleeve keeps the middle position, so that power output is forward in first gear.
When the input shaft shifting sliding sleeve 102 slides to the right and the second-stage shifting sliding sleeve 304 slides to the left, and the rest shifting sliding sleeve keeps the middle position, K3 and K4 are combined, the first-stage planet carrier 103 is fixedly connected with the input shaft, the second-stage gear 303 is fixedly connected with the output shaft, and power output is achieved to be in a forward second gear.
When the input shaft shift sleeve 102 slides to the right and the first-stage shift sleeve 301 slides to the left, the remaining shift sleeves hold the neutral position, K2 and K4 are combined, which is the third forward gear.
When the three-stage shift sleeve 305 slides to the left, and the rest of the shift sleeves remain neutral, K1 is engaged, controlling the hydraulic motor 111 to rotate in reverse, which is the reverse first gear.
It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The principles and embodiments of the present invention have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present invention and its core ideas; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (7)
1. The multistage hydraulic mechanical stepless speed change transmission system is characterized by comprising an input shaft assembly, a matched output shaft assembly, an output shaft assembly and a hydraulic pump shaft assembly; the input shaft assembly comprises a driving gear, an input shaft shifting sliding sleeve, a first-stage planet carrier, a first-stage annular gear, a first-stage planet gear, a second-stage annular gear, a second-stage planet carrier, a second-stage planet gear, a sun gear, a hydraulic motor gear and a hydraulic motor; the driving gear is arranged at one end of the driving shaft, and the input shaft shifting sliding sleeve is arranged at the other end of the driving shaft; the first-stage planet carrier and the first-stage annular gear are both coaxially arranged with the driving shaft, one end of the first-stage planet carrier is in transmission connection with the input shaft gear shifting sliding sleeve, the first-stage planet gear is arranged in the middle of the first-stage planet carrier, and the first-stage planet gear is meshed with the first-stage annular gear; the other end of the primary planet carrier is coaxially connected with the secondary annular gear, the secondary annular gear is meshed with the secondary planet gear, and the secondary planet gear is arranged on the secondary planet carrier; the sun gear is coaxially connected with the hydraulic motor gear, the sun gear is meshed with the secondary planetary gear, and the hydraulic motor gear is coaxially connected with the hydraulic motor; the driving gear is in transmission connection with the matched output shaft assembly and the hydraulic pump shaft assembly; the output shaft assembly comprises a first-stage gear, a first-stage gear shifting sliding sleeve, a second-stage gear shifting sliding sleeve, a third-stage gear and a third-stage gear shifting sliding sleeve which are sequentially arranged on the output shaft; the primary gear is meshed with the primary annular gear; the secondary gear is meshed with a gear at the end part of the secondary planet carrier; the tertiary gear is meshed with the hydraulic motor gear.
2. The multi-segment hydromechanical continuously variable transmission system according to claim 1, wherein the mating output shaft assembly comprises a mating output driven gear, the mating output driven gear being meshed with the driving gear.
3. The multistage hydromechanical continuously variable transmission system according to claim 1, wherein the hydraulic pump shaft assembly comprises a hydraulic pump driven gear and a hydraulic pump; the hydraulic pump driven gear is in transmission connection with the hydraulic pump, and the hydraulic pump is connected with the hydraulic motor through a hydraulic pipeline.
4. A multistage hydromechanical continuously variable transmission system according to claim 3, wherein the hydraulic pump is a closed swash plate variable plunger pump.
5. The multistage hydromechanical continuously variable transmission system according to claim 1, wherein the input shaft shift sleeve is splined to the input shaft.
6. The multistage hydromechanical continuously variable transmission system according to claim 1, wherein the primary shift sleeve, the secondary shift sleeve, and the tertiary shift sleeve are respectively splined to the output shaft.
7. The multistage hydromechanical continuously variable transmission system according to claim 1, wherein the hydraulic motor is a tilt-axis variable displacement plunger motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410389277.1A CN118224272A (en) | 2024-04-02 | 2024-04-02 | Multistage formula hydraulic machinery infinitely variable transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410389277.1A CN118224272A (en) | 2024-04-02 | 2024-04-02 | Multistage formula hydraulic machinery infinitely variable transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118224272A true CN118224272A (en) | 2024-06-21 |
Family
ID=91509924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410389277.1A Pending CN118224272A (en) | 2024-04-02 | 2024-04-02 | Multistage formula hydraulic machinery infinitely variable transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118224272A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119123023A (en) * | 2024-09-13 | 2024-12-13 | 盐城普兹机械有限公司 | A variable power distributor system for automobile |
-
2024
- 2024-04-02 CN CN202410389277.1A patent/CN118224272A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119123023A (en) * | 2024-09-13 | 2024-12-13 | 盐城普兹机械有限公司 | A variable power distributor system for automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108909426B (en) | Double-motor coupling planetary gear type two-gear variable speed drive axle | |
| CN205298454U (en) | Hydraulic pressure machinery infinitely variable transmission for loader | |
| CN109185417B (en) | Quick reversing power-dividing hydraulic mechanical stepless speed changer | |
| CN115384295A (en) | A multi-block electric drive bridge structure for new energy trucks | |
| CN101649895A (en) | Hybrid continuously variable transmission | |
| CN113124127B (en) | A multi-mode hydraulic-mechanical stepless speed change device for grain harvester | |
| CN112224006A (en) | Three-gear parallel shaft type double-motor three-planet-row hybrid power system | |
| CN113389869A (en) | Multi-mode composite transmission device integrating gear, hydraulic pressure and water chestnut | |
| CN112360950A (en) | Hydraulic mechanical stepless speed changer of high-power tractor | |
| CN108533701B (en) | Multi-section multi-clutch type hydraulic mechanical continuously variable transmission with double planet rows | |
| CN213899786U (en) | Hydrostatic stepless speed change device of high-horsepower tractor | |
| CN118224272A (en) | Multistage formula hydraulic machinery infinitely variable transmission system | |
| CN119123024A (en) | Dual-motor hydraulic mechanical continuously variable transmission system and method | |
| CN104500684A (en) | Ten-gear hydrodynamic transmission for vehicle | |
| CN117565653A (en) | Hybrid power transmission device for high-horsepower tractor | |
| CN115143249B (en) | A HMCVT power split transmission system and engineering machinery | |
| CN107218373B (en) | Full hydraulic transmission speed changer | |
| CN214523345U (en) | Novel speed change structure of electric drive loader | |
| CN211901516U (en) | Control system of continuously variable transmission | |
| CN118088642A (en) | Hydraulic mechanical stepless speed change transmission system without clutch | |
| CN118088643A (en) | Hydraulic machinery stepless speed change transmission system | |
| CN118066273A (en) | Two-section stepless speed change transmission system suitable for engineering vehicle | |
| CN118066274A (en) | Double-planet-row output split-flow type hydraulic mechanical stepless speed change transmission system | |
| CN220791993U (en) | Gear shifting gearbox | |
| CN219452789U (en) | Hydraulic gearbox for engineering machinery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |