CN111688484A - Walking hydraulic speed regulating system for cotton picker - Google Patents
Walking hydraulic speed regulating system for cotton picker Download PDFInfo
- Publication number
- CN111688484A CN111688484A CN202010753657.0A CN202010753657A CN111688484A CN 111688484 A CN111688484 A CN 111688484A CN 202010753657 A CN202010753657 A CN 202010753657A CN 111688484 A CN111688484 A CN 111688484A
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- Prior art keywords
- hydraulic
- transfer case
- mechanical
- bidirectional
- cotton picker
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/02—Auxiliary drives directly from an engine shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
- B60K17/344—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/02—Auxiliary drives directly from an engine shaft
- B60K2025/026—Auxiliary drives directly from an engine shaft by a hydraulic transmission
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Motor Power Transmission Devices (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
The invention provides a walking hydraulic speed regulating system for a cotton picker, which comprises an engine, a transfer case, a bidirectional variable pump, a bidirectional variable motor, a hydraulic mechanical stepless speed changing box, a transfer case, a front transmission shaft, a front axle, front wheels, a rear transmission shaft, a rear axle and rear wheels. The system has reasonable design and flexible operation, and can meet the driving speed and torque requirements of the cotton picker and obtain good speed regulation performance by controlling the displacement ratio of the bidirectional variable pump, the displacement ratio of the bidirectional variable motor, the section position of the hydraulic mechanical stepless speed changing box and the gear position of the transfer case. The system has the advantages of adjustable walking speed, variable torque and simple operation, is suitable for the operation of the cotton picker with load fluctuation and transportation requirements, and meets the driving requirements of the cotton picker.
Description
Technical Field
The invention belongs to the technical field of hydraulic transmission, and particularly relates to a walking hydraulic speed regulating system for a cotton picker.
Background
The speed and the torque of the cotton picker need to be adjusted according to different loads and running states in the working process, so that the walking speed adjusting system for the cotton picker is required to be adjustable in walking speed, variable in torque and simple to operate. In the prior art, a power shifting walking system of a cotton picker mostly adopts a power shifting walking speed regulating system, and the production requirement can not be completely met.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a walking hydraulic speed regulating system for a cotton picker, which is applied to the walking speed control of the cotton picker, adjusts the forward speed and the torque of the cotton picker according to the driving requirement of the cotton picker, and realizes stepless speed change through a pump control hydraulic motor and a gearbox structure.
The invention provides a walking hydraulic speed regulating system for a cotton picker, which comprises the following components: the method mainly comprises the following steps: 1-an engine; 2-a transfer case; 3-a bidirectional variable pump; 4-a bidirectional variable motor; 5-a hydro-mechanical continuously variable transmission; 6-a transfer case; 7-front transmission shaft; 8-front axle; 9-front wheels; 10-rear drive shaft; 11-rear axle; 12-rear wheel.
Wherein, the engine 1 is connected with the transfer case 2 through an output shaft; the transfer case 2 distributes the power of the engine 1 and outputs the power through an output shaft, and the output shaft of the transfer case is connected with an input shaft of the bidirectional variable pump 3 and an input shaft of the hydraulic mechanical stepless gearbox 5 through a mechanical structure; the bidirectional variable pump 3 converts mechanical energy provided by the transfer case 2 into hydraulic energy, and transmits the hydraulic energy to the bidirectional hydraulic motor 4 through a hydraulic pipeline; the bidirectional hydraulic motor 4 converts hydraulic energy provided by the bidirectional variable pump 3 into rotating speed torque, and the rotating speed torque is transmitted to the hydraulic mechanical stepless gearbox 5 through an output shaft; the hydraulic mechanical stepless speed changing box 5 converges the mechanical energy from the transfer case 2 and the bidirectional hydraulic motor 4 and is connected with a transfer case 6 through an output shaft; the transfer case 6 outputs power to the front transmission shaft 7 and the rear transmission shaft 10 through mechanical connection; the front transmission shaft 7 outputs power to a front axle 8 through mechanical connection; the front axle 8 drives the front wheel 9 to move forward through mechanical connection; the rear transmission shaft 10 outputs power to a rear axle 11 through mechanical connection; the rear axle 11 drives the rear wheels 12 forward through a mechanical connection.
Wherein, the transfer case can be provided with a plurality of output shafts, one of which is connected with the bidirectional variable pump 3 and the hydraulic mechanical continuously variable transmission 5 through a mechanical structure; the mechanical structure is a gear structure.
The displacement ratio of the bidirectional variable pump 3 and the bidirectional variable motor 4 is controllable, and the maximum displacement is the same.
The hydraulic mechanical stepless gearbox is a planetary gear structure gearbox, and can be provided with a plurality of planetary rows and a plurality of output shafts; the output shafts correspond to the mechanical sections; the plurality of mechanical sections correspond to different speed regulation ranges and are switched by changing the sections through the clutch; the planetary row converges the mechanical energy from the transfer case 2 and the bidirectional hydraulic motor 4, and the power is converged and then output through the output shaft.
The power output by the gearbox can be simultaneously transmitted to the front transmission shaft and the rear transmission shaft by the transfer case, and the gear of the transfer case is specified to be in the 1 st gear; the power output by the gearbox can also be transmitted to the front transmission shaft only through gear shifting, and the gear of the transfer case is specified to be in the 2 nd gear at the time.
In particular, the invention can control the displacement ratio of the bidirectional variable pump 3, the displacement ratio of the bidirectional variable motor 4, the stepless speed changing box section of the hydraulic machine and the gear position of the transfer case according to the running speed and the torque requirement so as to meet the driving requirement of the cotton picker.
The invention provides the scheme, the system has the advantages of adjustable walking speed, variable torque and simple operation, is suitable for the operation of the cotton picker with load fluctuation and transportation requirements, and meets the driving requirements of the cotton picker. The above-mentioned embodiments and drawings are only for illustrating the technical solutions of the present invention and are not to be construed as limiting, and modifications or equivalent substitutions of the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention are included in the claims of the present invention.
Drawings
FIG. 1 is a working principle diagram of a walking hydraulic speed regulating system for a cotton picker.
In the drawings: 1-an engine; 2-a transfer case; 3-a bidirectional variable pump; 4-a bidirectional variable motor; 5-a hydro-mechanical continuously variable transmission; 6-transfer case.
Fig. 2 is a schematic view of a cotton picker chassis.
In the drawings: 6-a transfer case; 7-front transmission shaft; 8-front axle; 9-front wheels; 10-rear drive shaft; 11-rear axle; 12-rear wheel.
Detailed Description
In order to explain the technical features of the present solution, the present invention is explained in detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the walking hydraulic speed regulating system for the cotton picker is characterized in that: comprises 1-an engine; 2-a transfer case; 3-a bidirectional variable pump; 4-a bidirectional variable motor; 5-a hydro-mechanical continuously variable transmission; 6-a transfer case; 7-front transmission shaft; 8-front axle; 9-front wheels; 10-rear drive shaft; 11-rear axle; 12-rear wheel.
Wherein, the engine 1 is connected with the transfer case 2 through an output shaft; the transfer case 2 distributes the power of the engine 1 and outputs the power through an output shaft, and the output shaft of the transfer case is connected with an input shaft of the bidirectional variable pump 3 and an input shaft of the hydraulic mechanical stepless gearbox 5 through a mechanical structure; the bidirectional variable pump 3 converts mechanical energy provided by the transfer case 2 into hydraulic energy, and transmits the hydraulic energy to the bidirectional hydraulic motor 4 through a hydraulic pipeline; the bidirectional hydraulic motor 4 converts hydraulic energy provided by the bidirectional variable pump 3 into rotating speed torque, and the rotating speed torque is transmitted to the hydraulic mechanical stepless gearbox 5 through an output shaft; the hydraulic mechanical stepless speed changing box 5 converges the mechanical energy from the transfer case 2 and the bidirectional hydraulic motor 4 and is connected with a transfer case 6 through an output shaft; the transfer case 6 outputs power to the front transmission shaft 7 and the rear transmission shaft 10 through mechanical connection; the front transmission shaft 7 outputs power to a front axle 8 through mechanical connection; the front axle 8 drives the front wheel 9 to move forward through mechanical connection; the rear transmission shaft 10 outputs power to a rear axle 11 through mechanical connection; the rear axle 11 drives the rear wheels 12 forward through a mechanical connection.
Wherein, the transfer case can be provided with a plurality of output shafts, one of which is connected with the bidirectional variable pump 3 and the hydraulic mechanical continuously variable transmission 5 through a mechanical structure; the mechanical structure is a gear structure.
The displacement ratio of the bidirectional variable pump 3 and the bidirectional variable motor 4 is controllable, and the maximum displacement is the same.
The hydraulic mechanical stepless gearbox is a planetary gear structure gearbox, and can be provided with a plurality of planetary rows and a plurality of output shafts; the output shafts correspond to the mechanical sections; the plurality of mechanical sections correspond to different speed regulation ranges and are switched by changing the sections through the clutch; the planetary row converges the mechanical energy from the transfer case 2 and the bidirectional hydraulic motor 4, and the power is converged and then output through the output shaft.
The power output by the gearbox can be simultaneously transmitted to the front transmission shaft and the rear transmission shaft by the transfer case, and the gear of the transfer case is specified to be in the 1 st gear; the power output by the gearbox can also be transmitted to the front transmission shaft only through gear shifting, and the gear of the transfer case is specified to be in the 2 nd gear at the time.
When the cotton picker is in a general working state, the cotton picker is in a four-wheel drive state: at the moment, the displacement ratio of the bidirectional variable pump 3 is dynamically changed according to the requirement of the working speed and is used as a variable pump; the displacement ratio of the bidirectional hydraulic motor 4 is set to 1, and the bidirectional hydraulic motor is used as a quantitative motor; the hydraulic mechanical stepless speed changing box 5 is changed into sections according to the requirements of working speed and torque; the transfer case 6 is positioned at the 1 st gear; the power of the engine 1 is connected with the transfer case 2 through an output shaft; the transfer case 2 distributes the power of the engine 1 and outputs the power through an output shaft, and the output shaft of the transfer case is connected with an input shaft of the bidirectional variable pump 3 and an input shaft of the hydraulic mechanical stepless gearbox 5 through a mechanical structure; the bidirectional variable pump 3 converts mechanical energy provided by the transfer case 2 into hydraulic energy, and transmits the hydraulic energy to the bidirectional hydraulic motor 4 through a hydraulic pipeline; the bidirectional hydraulic motor 4 converts hydraulic energy provided by the bidirectional variable pump 3 into rotating speed torque, and the rotating speed torque is transmitted to the hydraulic mechanical stepless gearbox 5 through an output shaft; the hydraulic mechanical stepless speed changing box 5 converges the mechanical energy from the transfer case 2 and the bidirectional hydraulic motor 4 and is connected with a transfer case 6 through an output shaft; the transfer case 6 outputs power to the front transmission shaft 7 and the rear transmission shaft 10 simultaneously through mechanical connection; the front transmission shaft 7 outputs power to a front axle 8 through mechanical connection; the front axle 8 drives the front wheel 9 to move forward through mechanical connection; the rear transmission shaft 10 outputs power to a rear axle 11 through mechanical connection; the rear axle 11 drives the rear wheels 12 forward through a mechanical connection.
When the cotton picker is in a high-load state or a climbing state and the driving torque provided by the four-wheel drive cannot meet the requirements of the cotton picker, the cotton picker is in a front-wheel drive state: the displacement ratio of the bidirectional variable pump 3 is set to 1 at this time, and the bidirectional variable pump is used as a fixed displacement pump; the displacement ratio of the bidirectional hydraulic motor 4 is dynamically changed according to the requirement of the working speed and is used as a variable motor; the hydraulic mechanical stepless speed changing box 5 is changed into sections according to the requirements of working speed and torque; the transfer case 6 is positioned at the 2 gear; at the moment, the cotton picker is in a front wheel driving state and has higher driving force; the power of the engine 1 is connected with the transfer case 2 through an output shaft; the transfer case 2 distributes the power of the engine 1 and outputs the power through an output shaft, and the output shaft of the transfer case is connected with an input shaft of the bidirectional variable pump 3 and an input shaft of the hydraulic mechanical stepless gearbox 5 through a mechanical structure; the bidirectional variable pump 3 converts mechanical energy provided by the transfer case 2 into hydraulic energy, and transmits the hydraulic energy to the bidirectional hydraulic motor 4 through a hydraulic pipeline; the bidirectional hydraulic motor 4 converts hydraulic energy provided by the bidirectional variable pump 3 into rotating speed torque, and the rotating speed torque is transmitted to the hydraulic mechanical stepless gearbox 5 through an output shaft; the hydraulic mechanical stepless speed changing box 5 converges the mechanical energy from the transfer case 2 and the bidirectional hydraulic motor 4 and is connected with a transfer case 6 through an output shaft; the transfer case 6 outputs power to the front transmission shaft 7 through mechanical connection; the front transmission shaft 7 outputs power to a front axle 8 through mechanical connection; the front axle 8 drives the front wheels 9 forward through a mechanical connection.
When the cotton picker is in an idle transportation state and needs a high advancing speed, at the moment: the displacement ratio of the bidirectional variable pump 3 is set to 1, and the bidirectional variable pump is used as a fixed displacement pump; the displacement ratio of the bidirectional hydraulic motor 4 is dynamically changed according to the requirement of the working speed and is used as a variable motor; the hydraulic mechanical stepless speed changing box 5 is changed into sections according to the requirements of working speed and torque; the transfer case 6 is positioned at the 1 st gear; at the moment, the cotton picker is in a four-wheel drive state, and the cotton picker has higher forward speed; the power of the engine 1 is connected with the transfer case 2 through an output shaft; the transfer case 2 distributes the power of the engine 1 and outputs the power through an output shaft, and the output shaft of the transfer case is connected with an input shaft of the bidirectional variable pump 3 and an input shaft of the hydraulic mechanical stepless gearbox 5 through a mechanical structure; the bidirectional variable pump 3 converts mechanical energy provided by the transfer case 2 into hydraulic energy, and transmits the hydraulic energy to the bidirectional hydraulic motor 4 through a hydraulic pipeline; the bidirectional hydraulic motor 4 converts hydraulic energy provided by the bidirectional variable pump 3 into rotating speed torque, and the rotating speed torque is transmitted to the hydraulic mechanical stepless gearbox 5 through an output shaft; the hydraulic mechanical stepless speed changing box 5 converges the mechanical energy from the transfer case 2 and the bidirectional hydraulic motor 4 and is connected with a transfer case 6 through an output shaft; the transfer case 6 outputs power to the front transmission shaft 7 and the rear transmission shaft 10 simultaneously through mechanical connection; the front transmission shaft 7 outputs power to a front axle 8 through mechanical connection; the front axle 8 drives the front wheel 9 to move forward through mechanical connection; the rear transmission shaft 10 outputs power to a rear axle 11 through mechanical connection; the rear axle 11 drives the rear wheels 12 forward through a mechanical connection.
The invention provides the scheme, the system has the advantages of adjustable walking speed, variable torque and simple operation, is suitable for the operation of the cotton picker with load fluctuation and transportation requirements, and meets the driving requirements of the cotton picker. The above-mentioned embodiments and drawings are only for illustrating the technical solutions of the present invention and are not to be construed as limiting, and modifications or equivalent substitutions of the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention are included in the claims of the present invention.
Claims (3)
1. A walking hydraulic speed regulation system for a cotton picker: the method mainly comprises the following steps: the engine, transfer case, two-way variable pump, two-way variable motor, hydraulic machinery stepless gear box, transfer case, front drive shaft, front axle, front wheel, rear drive shaft, rear axle, rear wheel.
2. The walking hydraulic speed regulating system for the cotton picker according to claim 1, characterized in that: the engine is connected with the transfer case through an output shaft; the power of the engine is distributed by the transfer case and then is output through an output shaft, and the output shaft of the transfer case is connected with the input shaft of the bidirectional variable pump and the input shaft of the hydraulic mechanical stepless gearbox through a mechanical structure; the bidirectional variable pump converts mechanical energy provided by the transfer case into hydraulic energy, and the hydraulic energy is transmitted to the bidirectional hydraulic motor through the hydraulic pipeline; the bidirectional hydraulic motor converts hydraulic energy provided by the bidirectional variable pump into rotating speed torque, and the rotating speed torque is transmitted to the hydraulic mechanical stepless gearbox through the output shaft; the hydraulic mechanical stepless speed changing box converges mechanical energy from the transfer case and the bidirectional hydraulic motor and is connected with the transfer case through an output shaft; the transfer case outputs power to the front transmission shaft and the rear transmission shaft through mechanical connection; the front transmission shaft outputs power to a front axle through mechanical connection; the front axle drives the front wheel to move forward through mechanical connection; the rear transmission shaft outputs power to a rear axle through mechanical connection; the rear axle drives the rear wheel to advance through mechanical connection.
3. The walking hydraulic speed regulating system for the cotton picker according to claim 1, characterized in that: the displacement ratio of the bidirectional variable pump, the displacement ratio of the bidirectional variable motor, the stepless speed changing box section of the hydraulic machine and the gear of the transfer case can be controlled according to the requirements of the running speed and the torque so as to meet the driving requirements of the cotton picker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010753657.0A CN111688484A (en) | 2020-07-31 | 2020-07-31 | Walking hydraulic speed regulating system for cotton picker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010753657.0A CN111688484A (en) | 2020-07-31 | 2020-07-31 | Walking hydraulic speed regulating system for cotton picker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111688484A true CN111688484A (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010753657.0A Pending CN111688484A (en) | 2020-07-31 | 2020-07-31 | Walking hydraulic speed regulating system for cotton picker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112918281A (en) * | 2021-03-27 | 2021-06-08 | 石河子大学 | Plug-in type cotton picker driving hybrid power system |
| CN114274984A (en) * | 2021-01-06 | 2022-04-05 | 金鹰重型工程机械股份有限公司 | Power transmission device of tamping car for railway maintenance |
-
2020
- 2020-07-31 CN CN202010753657.0A patent/CN111688484A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274984A (en) * | 2021-01-06 | 2022-04-05 | 金鹰重型工程机械股份有限公司 | Power transmission device of tamping car for railway maintenance |
| CN112918281A (en) * | 2021-03-27 | 2021-06-08 | 石河子大学 | Plug-in type cotton picker driving hybrid power system |
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