CN111279870A - Peanut harvester clamping and conveying hydraulic driving system and control method for preventing blockage - Google Patents
Peanut harvester clamping and conveying hydraulic driving system and control method for preventing blockage Download PDFInfo
- Publication number
- CN111279870A CN111279870A CN202010233297.1A CN202010233297A CN111279870A CN 111279870 A CN111279870 A CN 111279870A CN 202010233297 A CN202010233297 A CN 202010233297A CN 111279870 A CN111279870 A CN 111279870A
- Authority
- CN
- China
- Prior art keywords
- flow
- control valve
- control unit
- hydraulic motor
- sensor
- 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
- 241001553178 Arachis glabrata Species 0.000 title claims abstract description 40
- 235000020232 peanut Nutrition 0.000 title claims abstract description 40
- 235000017060 Arachis glabrata Nutrition 0.000 title claims abstract description 33
- 235000010777 Arachis hypogaea Nutrition 0.000 title claims abstract description 33
- 235000018262 Arachis monticola Nutrition 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000012545 processing Methods 0.000 claims description 7
- 238000005070 sampling Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000003306 harvesting Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D29/00—Harvesters for peanuts
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D33/00—Accessories for digging harvesters
- A01D33/12—Driving mechanisms, with or without motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Feedback Control In General (AREA)
Abstract
The invention discloses a peanut harvester clamping and conveying hydraulic driving system and a control method for preventing blockage, which comprise an engine, a variable pump, a safety valve, a directional control valve, a flow sensor, a hydraulic motor, a pressure sensor, a speed sensor and a central control unit, wherein the engine is connected with the variable pump and drives the variable pump to run, the variable pump is connected with the directional control valve, the directional control valve is sequentially connected with the flow control valve, the flow sensor, the pressure sensor and the hydraulic motor in series, the speed sensor is installed on an output shaft of the hydraulic motor, the central control unit is a master control unit which is respectively and electrically connected with the variable pump, the directional control valve, the flow sensor, the pressure sensor and the speed sensor, the variable pump is connected with the safety valve in parallel. The invention realizes the dynamic adjustment of the clamping conveying system, and effectively avoids the blockage and the dead extrusion in the working process and the damage caused by overlarge load.
Description
Technical Field
The invention relates to the field of peanut harvesting, in particular to a clamping and conveying hydraulic driving system of a peanut harvester and a control method for preventing blockage.
Background
The planting area of peanuts in China is very large, the previous harvesting work is totally manual, the labor intensity is high, and the efficiency is low. Along with the research and development and popularization of the peanut combine harvester, the labor intensity of peanut harvesting is greatly reduced, and the peanut harvesting efficiency is improved. Although the prior art solves the problem of peanut harvesting, the reliability of the peanut harvester in the using process has great problems and high failure rate, and the problems are particularly represented as the damage of mechanical parts caused by blockage, extrusion and overload of a clamping and conveying link after the peanuts are dug out from the ground. Because the peanut grows inhomogeneously, some places are sparse, some places grow thickly, lead to centre gripping conveying system load change very big, and present centre gripping is carried mostly fixed operating speed, does not set up dynamic speed adjustment function, leads to centre gripping conveying chain and peripheral parts to block up, crowd to die, damage occasionally takes place, has seriously influenced peanut harvester's popularization and application.
At present, a clamping and conveying system of a peanut harvester, which can be automatically adjusted along with working conditions, is urgently needed in the market, and the problem that the existing peanut harvester can not be dynamically adjusted along with the working conditions to cause system blockage due to the fact that the clamping and conveying of the existing peanut harvester are carried out at a fixed rotating speed is solved.
Disclosure of Invention
The invention aims to provide a clamping and conveying hydraulic driving system of a peanut harvester aiming at the defects of low automation degree, easy blockage and extrusion, easy damage of mechanical parts and the like of the existing clamping and conveying technology of the peanut harvester so as to achieve the aims of accurate and automatic control, high response sensitivity and better information acquisition degree.
The invention provides the following technical scheme:
a peanut harvester clamping and conveying hydraulic driving system comprises an engine, a variable pump, a safety valve, a directional control valve, a flow sensor, a hydraulic motor, a pressure sensor, a speed sensor and a central control unit, wherein the engine is connected with the variable pump and drives the variable pump to operate, the variable pump is connected with the directional control valve, the directional control valve is sequentially connected with the flow control valve, the flow sensor, the pressure sensor and the hydraulic motor in series, the speed sensor is installed on an output shaft of the hydraulic motor, the central control unit is a main control unit and is respectively and electrically connected with the variable pump, the directional control valve, the flow sensor, the pressure sensor and the speed sensor, and signals of the flow sensor, the pressure sensor and the speed sensor are acquired in real time in the system operation process, transmitting the acquired signals to the central control unit, wherein the variable pump, the directional control valve and the flow control valve are signal execution units, receiving the signals from the central control system to adjust the working state, and the variable pump is connected with the safety valve in parallel to protect the safety of an oil path;
preferably, the central control unit is internally provided with an SLFLC control module, and a basic module of the SLFLC control module includes a PD-type fuzzy controller, a feedforward control unit, and a proportional controller.
Preferably, the central control unit adopts a Siemens S7-1200 series-based programmable controller.
The invention provides a feedback closed-loop control working mode: when the central control unit starts working, initial parameter values such as speed and the like are given to initialize the central control unit controller; secondly, the controller controls the flow of the execution component; thirdly, the output flow acts on the hydraulic motor to drive the hydraulic motor to operate; fourthly, the sensor collects process variables of flow, pressure and rotating speed and feeds the process variables back to the controller; fifthly, the controller receives the feedback signal for processing and then sets a new working parameter value to control the execution component; sixthly, the second step to the fifth step are repeatedly executed in sequence to realize dynamic control.
The invention provides a blockage prevention control method for a peanut harvester clamping and conveying hydraulic driving system, which comprises the following steps:
the method comprises the following steps that firstly, a peanut harvester is started, a clamping and conveying control system of the peanut harvester is initialized, and a central control unit gives the output rotating speed, the hysteresis loop width, the sampling period, the proportional gain and the differential time of a hydraulic motor;
secondly, the engine runs, the variable pump, the directional control valve, the flow control valve and the hydraulic motor start to work by taking initial values as working parameters, and peanuts are clamped and conveyed after being excavated;
thirdly, the flow sensor, the pressure sensor and the speed sensor collect the pressure and the flow of the hydraulic loop and the actual value of the rotating speed of the output shaft of the hydraulic motor and feed back the pressure and the flow and the actual value of the rotating speed of the output shaft of the hydraulic motor to the central control unit for processing;
fourthly, calculating deviation through a preset algorithm after the acquired data meet the sampling period, and outputting a maintaining voltage through an analog quantity output channel to continue working in the current state when the deviation is within the hysteresis loop width; when the deviation is larger than the hysteresis loop width, the built-in self-learning fuzzy logic controller model starts to process data, selects the optimal scheme parameter to output, and adjusts the voltage through the output of the analog quantity channel;
fifthly, the voltage signal is amplified by an amplifier and then acts on an execution component, a new working state is given, the valve core position of the flow control valve is controlled to move, and the output rotating speed of the hydraulic motor is adjusted;
and sixthly, repeating the third step, the fourth step and the fifth step, and enabling the clamping and conveying system to work under the optimal parameter state.
Compared with the prior art, the invention has the beneficial effects that:
the flow pressure sensor, the pressure sensor and the speed sensor are arranged at proper positions, so that the dynamic monitoring and data collection of the machine work are realized;
by arranging the central control unit and the method, the signal processing and the timely feedback are realized, the dynamic adjustment of the clamping and conveying system is realized, and the damage caused by blockage and extrusion and overlarge load in the working process is effectively avoided;
the central control unit is internally provided with a self-learning fuzzy logic controller model, and a large amount of data are processed and compared in a working project, so that the operation scheme is more optimal, the working efficiency of the machine is continuously improved, and the energy consumption is reduced.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view of the working position of the gripping conveyor chain;
FIG. 3 is a flow chart of the operation of the clamping conveyor system;
FIG. 4 is a flow chart of the control of the clamping conveyor system;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the invention provides a peanut harvester clamping and conveying hydraulic drive system, which comprises an engine 1, a variable pump 2, a safety valve 3, a directional control valve 4, a flow control valve 5, a flow sensor 6, a hydraulic motor 7, a pressure sensor 8, a speed sensor 9 and a central control unit 10, wherein the engine 1 is connected with the variable pump 2 to drive the variable pump 2 to operate so as to provide required hydraulic oil flow for a next-stage hydraulic element, the variable pump 2 is connected with the directional control valve 4, the directional control valve 4 is sequentially connected with the flow control valve 5, the flow sensor 6, the pressure sensor 8 and the hydraulic motor 7 in series, the hydraulic motor 7 is provided with the speed sensor 9, the central control unit 10 is a master control unit which is respectively and electrically connected with the variable pump 2, the directional control valve 4, the flow control valve 5, the flow sensor 6, the pressure sensor 8 and the speed sensor 9, the flow sensor 6, the pressure sensor 8 and the speed sensor 9 collect signals in the system operation process, the collected signals are transmitted to the central control unit 10, the variable pump 2, the direction control valve 4 and the flow control valve 5 receive the signals from the central control unit 10 to adjust the working state, the variable pump 2 is connected with the safety valve 3 in parallel, and an oil path is protected to be safe; the specific working mode is as follows: when the clamping and conveying control system of the peanut harvester starts to work, the system is initialized, the central control unit gives an operation initial value, the direction control valve 4 receives a signal of the central control unit 10 to open an oil way, the engine 1 drives the variable pump 2 to provide proper hydraulic oil flow to the flow control valve 5 through the adjustment of the central control unit 10, the central control unit 10 further adjusts the flow passing through the hydraulic motor 7 through controlling the flow control valve 5, the rotating speed of the hydraulic motor 7 is controlled to be matched with power output, and because the peanuts have the characteristic of uneven growth, some places are sparse and some places are dense, the peanuts entering the clamping and conveying chain are changed continuously, so that the operating speed and stress of the clamping chain are changed, further the operating speed, the oil way pressure and the flow of the hydraulic motor are changed continuously, and in order to control the operation of the system, the system starts to start, the flow sensor 6, the pressure sensor 8 and the speed sensor 9 start to work, respectively monitor the flow, the pressure and the speed change of the hydraulic motor 7 flowing through the hydraulic motor 7, transmit the obtained dynamic data signals to the central control unit 10, the central control unit 10 is processed by a built-in algorithm, calculate an optimal operation scheme and transmit the optimal operation scheme to the signal execution unit variable pump 2, the direction control valve 4 and the flow control valve 5, control the flow and the oil pressure of the system, achieve the purpose of controlling the operation of the clamping conveying chain, effectively prevent the machine from being blocked, consume high energy and the like, and realize automatic intelligent adjustment.
As an embodiment of the present invention, the central control unit 10 is provided with an SLFLC control module, and its basic modules include a PD type fuzzy controller, a feedforward control unit and a proportional controller.
As an embodiment of the invention, the central control unit 10 adopts a Siemens S7-1200 series programmable controller.
Referring to fig. 1 and 3, the present invention provides a feedback closed-loop control operation mode: when the system starts to work, initial parameter values such as speed and the like are given to initialize the central control unit 10 controller; secondly, the controller controls the flow of the execution component; thirdly, the output flow acts on the hydraulic motor 7 to drive the operation; fourthly, the sensor collects process variables of flow, pressure and rotating speed and feeds the process variables back to the controller; fifthly, the controller receives the feedback signal for processing and then sets a new working parameter value to control the execution component; sixthly, the second step to the fifth step are repeatedly executed in sequence to realize dynamic control.
Referring to fig. 1 and 4, the invention comprises a method for controlling blockage prevention of a hydraulic drive system for clamping and conveying of a peanut harvester, which comprises the following steps:
the method comprises the following steps that firstly, a peanut harvester is started, a clamping and conveying control system of the peanut harvester is initialized, and a central control unit 10 gives an output rotating speed, a hysteresis loop width, a sampling period, a proportional gain and a differential time of a hydraulic motor 7;
secondly, the engine 1 runs, the variable pump 2, the directional control valve 4, the flow control valve 5 and the hydraulic motor 7 start to work by taking initial values as working parameters, and peanuts are clamped and conveyed after being excavated;
thirdly, the flow sensor 6, the pressure sensor 8 and the speed sensor 9 collect the pressure and the flow of the hydraulic loop and feed the actual rotating speed value of the output shaft of the hydraulic motor 7 back to the central control unit 10 for processing;
fourthly, calculating deviation through a preset algorithm after the acquired data meet the sampling period, and outputting a maintaining voltage through an analog quantity output channel to continue working in the current state when the deviation is within the hysteresis loop width; when the deviation is larger than the hysteresis loop width, the built-in self-learning fuzzy logic controller model starts to process data, selects the optimal scheme parameter to output, and adjusts the voltage through the output of the analog quantity channel;
fifthly, the voltage signal is amplified by an amplifier and then acts on an execution component, a new working state is set, the position of a valve core of the flow control valve 5 is controlled to move, and the output rotating speed of the hydraulic motor 7 is adjusted;
and sixthly, repeating the third step, the fourth step and the fifth step, and enabling the clamping and conveying system to work under the optimal parameter state.
Claims (5)
1. The peanut harvester clamping and conveying hydraulic driving system is characterized by comprising an engine (1), a variable pump (2), a safety valve (3), a direction control valve (4), a flow control valve (5), a flow sensor (6), a hydraulic motor (7), a pressure sensor (8), a speed sensor (9) and a central control unit (10), wherein the engine (1) is connected with the variable pump (2) and drives the variable pump (2) to operate, the variable pump (2) is connected with the direction control valve (4), the direction control valve (4) is sequentially connected with the flow control valve (5), the flow sensor (6), the pressure sensor (8) and the hydraulic motor (7) in series, the speed sensor (9) is installed on an output shaft of the hydraulic motor (7), and the central control unit (10) is a master control unit and is respectively connected with the variable pump (2), The direction control valve (4), the flow control valve (5), the flow sensor (6), the pressure sensor (8) and the speed sensor (9) are electrically connected, and the variable pump (2) is connected with the safety valve (3) in parallel.
2. The peanut harvester gripping and conveying hydraulic drive system of claim 1, wherein: the central control unit (10) is internally provided with an SLFLC control module, and the basic module of the SLFLC control module comprises a PD type fuzzy controller, a feedforward control unit and a proportional controller.
3. The peanut harvester gripping and conveying hydraulic drive system of claim 1, wherein: the central control unit (10) adopts a Siemens S7-1200 series-based programmable controller.
4. The peanut harvester gripping and conveying hydraulic drive system of claim 1, wherein: the invention provides a feedback closed-loop control working mode: when the system starts to work, initial parameter values such as speed and the like are firstly given to enable the central control unit (10) to initialize; secondly, the controller controls the flow of the execution component; thirdly, the output flow acts on the hydraulic motor (7) to drive the hydraulic motor to run; fourthly, the sensor collects process variables of flow, pressure and rotating speed and feeds the process variables back to the controller; fifthly, the controller receives the feedback signal for processing and then sets a new working parameter value to control the execution component; sixthly, the second step to the fifth step are repeatedly executed in sequence to realize dynamic control.
5. A blockage prevention control method for a peanut harvester clamping and conveying hydraulic driving system is characterized by comprising the following steps:
s1, starting the peanut harvester, initializing a clamping and conveying control system of the peanut harvester, and giving the output rotating speed, the hysteresis width, the sampling period, the proportional gain and the differential time of the hydraulic motor (7) by the central control unit (10);
s2, the engine (1) is operated, the variable pump (2), the directional control valve (4), the flow control valve (5) and the hydraulic motor (7) start to work by taking initial values as working parameters, and clamping and conveying are carried out after the peanuts are dug;
s3, the flow sensor (6), the pressure sensor (8) and the speed sensor (9) collect the pressure and flow of a hydraulic circuit and the actual value of the rotating speed of the output shaft of the hydraulic motor (7) and feed back the actual value to the central control unit (10) for processing;
s4, calculating deviation through a preset algorithm after the collected data meet the sampling period, and outputting a maintaining voltage through an analog quantity output channel to continue working in the current state when the deviation is within the hysteresis width; when the deviation is larger than the hysteresis loop width, the built-in self-learning fuzzy logic controller model starts to process data, selects the optimal scheme parameter to output, and adjusts the voltage through the output of the analog quantity channel;
s5, the voltage signal is amplified by an amplifier and then acts on an execution component, a new working state is given, the valve core position of the flow control valve (5) is controlled to move, and the output rotating speed of the hydraulic motor (7) is adjusted;
s6, repeating S3, S4 and S5, the clamping and conveying system works under the optimal parameter state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010233297.1A CN111279870A (en) | 2020-03-29 | 2020-03-29 | Peanut harvester clamping and conveying hydraulic driving system and control method for preventing blockage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010233297.1A CN111279870A (en) | 2020-03-29 | 2020-03-29 | Peanut harvester clamping and conveying hydraulic driving system and control method for preventing blockage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111279870A true CN111279870A (en) | 2020-06-16 |
Family
ID=71018548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010233297.1A Pending CN111279870A (en) | 2020-03-29 | 2020-03-29 | Peanut harvester clamping and conveying hydraulic driving system and control method for preventing blockage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111279870A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513513A (en) * | 2021-04-16 | 2021-10-19 | 三一重型装备有限公司 | Hydraulic motor control method, device and system and working vehicle |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4188772A (en) * | 1977-06-06 | 1980-02-19 | Harrington Manufacturing Company | Hydraulic speed control system for the pick-up reel of a peanut combine |
| CN201415463Y (en) * | 2009-05-21 | 2010-03-03 | 宁波弘讯科技有限公司 | Energy-saving high-precision gas-electric hybrid injection molding machine |
| CN102278334A (en) * | 2011-07-22 | 2011-12-14 | 中国人民解放军装甲兵工程学院 | Hydraulic power system for robot |
| CN103303124A (en) * | 2013-06-24 | 2013-09-18 | 广东惠利普路桥信息工程有限公司 | Intelligent control system and control method for traveling of paver |
| CN104298165A (en) * | 2014-09-19 | 2015-01-21 | 西北农林科技大学 | PLC control system of orchard working platform |
| CN104521416A (en) * | 2014-12-22 | 2015-04-22 | 青岛农业大学 | Peanut harvester working condition detection and control system |
| CN105612923A (en) * | 2015-12-28 | 2016-06-01 | 广西大学 | Feed quantity control device and method of sugarcane harvester |
| CN107155533A (en) * | 2017-06-15 | 2017-09-15 | 农业部南京农业机械化研究所 | A kind of combined harvester threshing cylinder driving control system and method |
| CN209628103U (en) * | 2019-02-15 | 2019-11-15 | 山东省计算中心（国家超级计算济南中心） | A kind of harvester for peanut intelligent observing and controlling system |
| CN110476583A (en) * | 2019-08-09 | 2019-11-22 | 山东省农业机械科学研究院 | Picker for tuber crops operating speed adaptive control system and method |
| CN211960098U (en) * | 2020-03-29 | 2020-11-20 | 青岛农业大学 | Clamping and conveying hydraulic driving system of peanut harvester |
-
2020
- 2020-03-29 CN CN202010233297.1A patent/CN111279870A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4188772A (en) * | 1977-06-06 | 1980-02-19 | Harrington Manufacturing Company | Hydraulic speed control system for the pick-up reel of a peanut combine |
| CN201415463Y (en) * | 2009-05-21 | 2010-03-03 | 宁波弘讯科技有限公司 | Energy-saving high-precision gas-electric hybrid injection molding machine |
| CN102278334A (en) * | 2011-07-22 | 2011-12-14 | 中国人民解放军装甲兵工程学院 | Hydraulic power system for robot |
| CN103303124A (en) * | 2013-06-24 | 2013-09-18 | 广东惠利普路桥信息工程有限公司 | Intelligent control system and control method for traveling of paver |
| CN104298165A (en) * | 2014-09-19 | 2015-01-21 | 西北农林科技大学 | PLC control system of orchard working platform |
| CN104521416A (en) * | 2014-12-22 | 2015-04-22 | 青岛农业大学 | Peanut harvester working condition detection and control system |
| CN105612923A (en) * | 2015-12-28 | 2016-06-01 | 广西大学 | Feed quantity control device and method of sugarcane harvester |
| CN107155533A (en) * | 2017-06-15 | 2017-09-15 | 农业部南京农业机械化研究所 | A kind of combined harvester threshing cylinder driving control system and method |
| CN209628103U (en) * | 2019-02-15 | 2019-11-15 | 山东省计算中心（国家超级计算济南中心） | A kind of harvester for peanut intelligent observing and controlling system |
| CN110476583A (en) * | 2019-08-09 | 2019-11-22 | 山东省农业机械科学研究院 | Picker for tuber crops operating speed adaptive control system and method |
| CN211960098U (en) * | 2020-03-29 | 2020-11-20 | 青岛农业大学 | Clamping and conveying hydraulic driving system of peanut harvester |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513513A (en) * | 2021-04-16 | 2021-10-19 | 三一重型装备有限公司 | Hydraulic motor control method, device and system and working vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211960098U (en) | Clamping and conveying hydraulic driving system of peanut harvester | |
| CN202035290U (en) | Intelligent advance speed control device for tangential-axial combine harvester | |
| CN111279870A (en) | Peanut harvester clamping and conveying hydraulic driving system and control method for preventing blockage | |
| CN102150504A (en) | Method and device for intelligently controlling forward speed of tangential/longitudinal flow combine harvester | |
| CN202933522U (en) | Thickener provided with automatic control overload protection device | |
| CN102929146B (en) | Device and method for realizing model reference adaptive control on operation speed of combine harvester | |
| CN114532196A (en) | Clean energy farmland irrigation system and irrigation method based on water flow sensor | |
| CN116362615A (en) | Winter rape growth state monitoring system in field environment based on Internet of things | |
| CN104679041A (en) | Operation-load control system and method for reaping machines | |
| CN113791555A (en) | Automatic accurate fertilization control system and control method thereof | |
| CN212197168U (en) | Intelligent working face scraper conveyor monitoring system | |
| CN113519279A (en) | Hydraulic self-adaptive driving and controlling system and method for hydraulic variable-diameter threshing cylinder | |
| CN116671323B (en) | Intelligent fertilizing device and control method thereof | |
| CN204462717U (en) | A kind of car-mounted terminal of round bale baler and control system | |
| CN110476583A (en) | Picker for tuber crops operating speed adaptive control system and method | |
| CN107046927B (en) | Hydraulic transmission system for independent header of combine harvester and application method of hydraulic transmission system | |
| CN208247530U (en) | Oil plant Intelligent Low Temperature press apparatus | |
| CN114982447B (en) | Grape water and fertilizer integrated programmable control system and method based on Internet of things | |
| CN211458028U (en) | Intelligent control system for operating speed of potato harvester | |
| CN114788444A (en) | Fertilizing depth regulating and controlling method of fertilizer applicator | |
| CN115373437A (en) | Conveyor belt speed regulation control system for coal flow detection | |
| CN203374542U (en) | Hydraulic control system for potato seeder | |
| CN114711016B (en) | Regulating and controlling method of multi-parameter combined regulating and controlling system of combine harvester | |
| CN221225378U (en) | Remote switch system for farmland water level | |
| CN212589003U (en) | Loss control system for header of corn combine harvester |
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 |