CN102160486A - Pneumatic seed shooting mechanism and automatic control method thereof - Google Patents
Pneumatic seed shooting mechanism and automatic control method thereof Download PDFInfo
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- CN102160486A CN102160486A CN2010106062516A CN201010606251A CN102160486A CN 102160486 A CN102160486 A CN 102160486A CN 2010106062516 A CN2010106062516 A CN 2010106062516A CN 201010606251 A CN201010606251 A CN 201010606251A CN 102160486 A CN102160486 A CN 102160486A
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- solenoid valve
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Abstract
The invention relates to a pneumatic seed shooting mechanism and an automatic control method thereof. The pneumatic seed shooting mechanism comprises a stepping motor (3), a PLC (programmable logic controller) controller (8), a two-station two-way solenoid valve (9), an air storage tank (11), a gas pressure sensor (12), a traction electromagnet (13), a photoelectric sensor (15) and a feeding level sensor; and the PLC controller is started to realize automatic control on the feeding level sensor, the stepping motor, the photoelectric sensor, the traction electromagnet, the gas pressure sensor and the two-station two-way solenoid valve. The PLC controller can cooperatively control the stepping motor, the traction electromagnet and the two-station two-way solenoid valve to operate according to a signal emitted by an infrared sensor, thus pneumatic seed shooting automatic control is realized.
Description
Technical field
The present invention relates to a kind of pneumatic kind of the mechanism of penetrating, relate in particular to a kind of pneumatic kind of mechanism and autocontrol method thereof penetrated.
Background technology
Along with the continuous development of agricultural science and technology, pneumatic type sowing principle has applied to various seeding machineries, has that speed of drilling is fast, efficient is high, and characteristics such as injuring-free seed.Existing pneumaticly penetrate kind of apparatus structure as shown in Figure 2, with camshaft with the coaxial connection of air valve cam 19 gentle door lever cams, in order to guarantee to penetrate the co-ordination of kind of device, a sprocket wheel is installed on the sower land wheel, by chain transmission of power to camshaft and drive the rotation of two cams.In addition, at another sprocket wheel of installation on the camshaft power is sent on the seeding unit, with the co-ordination that guarantees to penetrate kind of device.When being opened under the effect of seeding valve at lever and cam, seeding unit is discharged an amount of seed from kind of case, and under action of gravity, be slipped to and penetrate kind of an inside, chamber, lever and cam turns to minimum point by the summit subsequently, the seeding valve cuts out under the effect of spring, when treating that simultaneously the air valve cam forwards peak to, air valve is opened, and discharges gas.Under authorized pressure and flow effect, seed is injected into the soil desired depth, thereby reaches the pneumatic purpose of planting of penetrating.
The power source of the existing pneumatic seeding unit of penetrating kind of mechanism, air valve cam, seeding valve lever cam all comes from the driving of land wheel.Therefore, make this mechanism finish a whole set of seeding incident process, be very crucial for the requirement of power source; And the transmission of power of sower land wheel can cause the transfer motion power instability because of being uneven of condition of ground of ploughing, and the sliding phenomenon of land wheel in addition can influence biography that this mechanism's seeding and air pressure penetrates kind and connect and cooperate the operating efficiency of reduction sower; In addition, in the sowing process, need operating personnel to monitor constantly whether residue air pressure satisfies pneumatic kind of the desired force value of penetrating in kind of case kind amount and the air accumulator, time-consuming effort again.
Summary of the invention
The objective of the invention is to avoid the shortcoming that exists in the prior art, provide a kind of pneumatic PLC control method of penetrating kind of mechanism by the existing pneumatic building block of penetrating kind of mechanism is adjusted and changed.Realization gas is penetrated the automatic control and the precision drilling of seeding process.
For achieving the above object, the present invention is achieved by the following scheme:
A kind of pneumatic kind of the mechanism of penetrating at first is provided, comprises: stepper motor (3), PLC controller (8), two-position two-way solenoid valve (9), air accumulator (11), baroceptor (12), tractive magnet (13), photoelectric sensor (15), following level sensor (17); PLC controller (8) is connected with following level sensor (17), baroceptor (12), photoelectric sensor (15), stepper motor (3), tractive magnet (13), two-position two-way solenoid valve (9) respectively, receive the detected kind amount of level sensor (17) signal down, according to detected kind amount signal, control step motor (3) whether electric, action; Baroceptor (12) passes to PLC controller (8) with detected air pressure signal, according to detected air pressure signal, whether control two-position two-way solenoid valve (9) switches on, photoelectric sensor (15) is used to respond to cam (14) positional information, by this cam position information, whether PLC controller (8) control tractive magnet (13) switches on.
The present invention also provides a kind of pneumatic autocontrol method of penetrating kind of mechanism, through level sensor (17) detection down, if a kind of amount of kind case is sufficient, PLC controller (8) control step electromotor (3) gets electric work, and stepper motor drives seeding unit (2) rotation makes seed enter grain tube (4) from kind of a case; Cam (14) rotates along with the driving of sower land wheel chain, when cam goes to peak, the blocking light beam, photoelectric sensor (15) sends signal and gives PLC controller (8), PLC controller (8) control tractive magnet (13) energising, drive valve lever will be penetrated the seeding valve (6) at top, kind of a chamber (7) and depress, and seed relies on the gravity of self to enter by seeding valve (6) and penetrates kind of a chamber (7); After treating the on-delay certain time length, tractive magnet (13) outage, seeding valve (6) closure; At this moment, if baroceptor (12) does not send the signal of air accumulator (11) air pressure deficiency and gives PLC controller (8), then PLC controller (8) control two-position two-way solenoid valve (9) energising, gas is entered by blast pipe (10) and penetrates kind of a chamber (7), and two-position two-way solenoid valve (9) "on" position continues certain time length; Soil is injected in seed accelerated motion under the gases at high pressure effect immediately, finishes one and penetrates kind of a process.
The present invention compared with prior art has following effect:
(1) this control method can be by the PLC programmable controller to pneumaticly penetrating kind of mechanism's seeding, penetrating kind of process and realize control automatically, and the system dynamic source is stable, can realize adjusting to the crop spacing in the rows according to the sower pace.
(2) this PLC control method need not operating personnel and monitors whether residue air pressure satisfies pneumatic kind of the desired force value of penetrating in kind of case kind amount and the air accumulator in penetrating kind of mechanism's operation process, and is time saving and energy saving.
Description of drawings
Fig. 1 is pneumatic kind of the mechanism structure figure that penetrates that utilizes PLC control;
Fig. 2 is existing pneumatic kind of the mechanism structure sketch of penetrating;
Fig. 3 is PLC input, output connection figure.
Fig. 4 is pneumatic kind of the mechanism controls principle flow chart of penetrating that utilizes PLC control.
Among the figure: 1. kind of case, 2. seeding unit, 3. stepper motor, 4. grain tube, 5. spring, 6. the seeding valve is 7. penetrated kind of a chamber, 8.PLC controller, 9. two-position two-way solenoid valve, 10. blast pipe, 11. air accumulator, 12. baroceptors, 13. tractive magnets, 14. cam, 15. photoelectric sensors, 16. seeding valve levers, 17. following level sensor, 18. air valves, 19. air valve cams.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention and feature are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
Embodiment 1, and as shown in Figure 1, pneumatic kind of the mechanism of penetrating of the described PLC of utilization control comprises: plant case 1, seeding unit 2, stepper motor 3, grain tube 4, seeding valve 6 is penetrated kind of chamber 7, PLC controller 8, two-position two-way solenoid valve 9, blast pipe 10, air accumulator 11, baroceptor 12, tractive magnet 13, cam 14, photoelectric sensor 15, seeding valve lever 16, following level sensor 17;
Described control system includes PLC controller 8, stepper motor 3 is installed on feed shaft, plant bottom, case 1 right side level sensor 17 down is installed, tractive magnet 13 is installed in seeding valve lever 16 ends, two-position two-way solenoid valve 9 is installed and in air accumulator 11 exits baroceptor 12 is installed penetrating on the 7 right-hand member blast pipes 10 of kind of chamber, a photoelectric sensor 15 is installed in the upper end of cam 14.
As shown in Figure 3, PLC controller 8 is connected with following level sensor 17, baroceptor 12, photoelectric sensor 15, stepper motor 3, tractive magnet 13, two-position two-way solenoid valve 9 respectively, receive level sensor 17 detected kind amount signals down, according to detected kind amount signal, control step motor 3 whether electric, action; Baroceptor 12 passes to PLC controller 8 with detected air pressure signal, according to detected air pressure signal, whether control two-position two-way solenoid valve 9 switches on, photoelectric sensor 15 is used to respond to cam 14 positional informations, by this cam position information, whether PLC controller 8 control tractive magnets 13 switch on.
Switch activated PLC controller by PLC controller 8 is to the automatic control of level sensor 17, stepping motor 3, photoelectric sensor 15, tractive magnet 13, baroceptor 12, two-position two-way solenoid valve 9 down.In kind of case, plant quantity not sufficient or penetrate kind of air pressure and be lower than required value level sensor or baroceptor sends signal at present, make stepper motor, tractive magnet, two-position two-way solenoid valve quit work by the PLC controller, pending fault restarts after removing.During the fault-free operation, the PLC controller can send signal coordinating control step motor, tractive magnet, two-position two-way solenoid valve operation according to infrared sensor, realizes pneumatic kind of the control automatically of penetrating.
Described stepper motor 3 is subjected to the control of PLC controller 8, and the stepper motor rotating speed can be regulated according to the sower pace.1 kind of amount of 17 pairs of kind casees of following level sensor is carried out and is detected, and when kind of an amount was lower than desired location, following level sensor 17 sent signal to PLC controller 8.Tractive magnet 13 can be according to PLC programming Control seeding demand, and seeding valve 6 is carried out electromagnetic attraction or unclamps.Two-position two-way solenoid valve 9 is installed signal realization unlatching and the closure that baroceptor 12 sends according to air accumulator 11 exits.12 pairs of air accumulators 11 of baroceptor that install in the air accumulator exit pressure detect in real time.In cam 14 upper ends one photoelectric sensor 15 is installed, when cam goes to peak, the blocking light beam, photoelectric sensor sends signal.
As shown in Figure 4, penetrate the control method of kind of mechanism for the present invention is pneumatic, pneumatic kind of the mechanism of penetrating of the described PLC of utilization control, in use, through level sensor 17 detections down, if a kind of amount of kind case is sufficient, stepping motor 3 gets electric work, and stepper motor drives seeding unit 2 rotations makes seed enter grain tube 4 from kind of a case.Cam 14 rotates along with the driving of sower land wheel chain, when cam goes to peak, the blocking light beam, photoelectric sensor 15 sends signal, tractive magnet 13 energising drive valve levers will be penetrated the seeding valve 6 at 7 tops, kind of chamber and depress, and seed relies on the gravity of self to enter by seeding valve 6 and penetrates kind of chamber 7.Treat 13 outages of on-delay 4s rear haulage electromagnet, seeding valve 6 closures; Can the control of seeding valve 6 unlatchings with closure be realized sowing the control of crop spacing in the rows by the delay duration between the electromagnet 13 switching electricity.It is that 5s or 10s control to reach bigger spacing in the rows that above-mentioned on-delay for example can be set.At this moment, if baroceptor 12 does not send the signal of gas tank 11 air pressure deficiencies, then two-position two-way solenoid valve 9 energisings, gas is entered by blast pipe 10 and penetrates kind of chamber 7, and "on" position continues 3s.Soil is injected in seed accelerated motion under the gases at high pressure effect immediately, finishes one and penetrates kind of a process.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included in protection scope of the present invention.
Claims (2)
1. pneumatic kind of the mechanism of penetrating is characterized in that, comprising: stepper motor (3), PLC controller (8), two-position two-way solenoid valve (9), air accumulator (11), baroceptor (12), tractive magnet (13), photoelectric sensor (15), following level sensor (17); PLC controller (8) is connected with following level sensor (17), baroceptor (12), photoelectric sensor (15), stepper motor (3), tractive magnet (13), two-position two-way solenoid valve (9) respectively, receive the detected kind amount of level sensor (17) signal down, according to detected kind amount signal, control step motor (3) whether electric, action; Baroceptor (12) passes to PLC controller (8) with detected air pressure signal, according to detected air pressure signal, whether control two-position two-way solenoid valve (9) switches on, photoelectric sensor (15) is used to respond to cam (14) positional information, by this cam position information, whether PLC controller (8) control tractive magnet (13) switches on.
2. pneumatic autocontrol method of penetrating kind of mechanism, it is characterized in that, through level sensor (17) detection down, if a kind of amount of kind case is sufficient, PLC controller (8) control step electromotor (3) gets electric work, and stepper motor drives seeding unit (2) rotation makes seed enter grain tube (4) from kind of a case; Cam (14) rotates along with the driving of sower land wheel chain, when cam goes to peak, the blocking light beam, photoelectric sensor (15) sends signal and gives PLC controller (8), PLC controller (8) control tractive magnet (13) energising, drive valve lever will be penetrated the seeding valve (6) at top, kind of a chamber (7) and depress, and seed relies on the gravity of self to enter by seeding valve (6) and penetrates kind of a chamber (7); After treating the on-delay certain time length, tractive magnet (13) outage, seeding valve (6) closure; At this moment, if baroceptor (12) does not send the signal of air accumulator (11) air pressure deficiency and gives PLC controller (8), then PLC controller (8) control two-position two-way solenoid valve (9) energising, gas is entered by blast pipe (10) and penetrates kind of a chamber (7), and two-position two-way solenoid valve (9) "on" position continues certain time length; Soil is injected in seed accelerated motion under the gases at high pressure effect immediately, finishes one and penetrates kind of a process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106062516A CN102160486A (en) | 2010-12-27 | 2010-12-27 | Pneumatic seed shooting mechanism and automatic control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106062516A CN102160486A (en) | 2010-12-27 | 2010-12-27 | Pneumatic seed shooting mechanism and automatic control method thereof |
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| CN102160486A true CN102160486A (en) | 2011-08-24 |
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| CN2010106062516A Pending CN102160486A (en) | 2010-12-27 | 2010-12-27 | Pneumatic seed shooting mechanism and automatic control method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771226A (en) * | 2012-08-23 | 2012-11-14 | 黑龙江省海轮王农机制造有限公司 | Sowing machine based on automatic control system |
| CN104081919A (en) * | 2014-06-16 | 2014-10-08 | 孔祥金 | Seeder |
| CN104770117A (en) * | 2015-01-21 | 2015-07-15 | 沈阳工程学院 | Intelligent seed selection mechanism of agricultural seeder |
| CN104782278A (en) * | 2015-05-17 | 2015-07-22 | 长江大学 | Precise seed taking device for precise seeding machine |
| CN104798471A (en) * | 2015-05-17 | 2015-07-29 | 长江大学 | Valve type multifunctional precision seeder |
| CN105103733A (en) * | 2015-09-15 | 2015-12-02 | 冯成伟 | Air-blasting precise seeder |
| CN105173084A (en) * | 2015-10-29 | 2015-12-23 | 黑龙江科技大学 | Aerial seeding device for unmanned aerial vehicle |
| CN106576525A (en) * | 2015-10-15 | 2017-04-26 | 四川农业大学 | Ejector rod type adjustable seeder |
| CN106717356A (en) * | 2017-01-22 | 2017-05-31 | 河北农业大学 | District seeder |
| US9868597B2 (en) | 2014-12-02 | 2018-01-16 | Cnh Industrial Canada, Ltd. | System and method for an air cart and rotary air lock |
| CN107750543A (en) * | 2017-11-20 | 2018-03-06 | 中国农业大学 | Unmanned aerial vehicle onboard is precisely to target seeding system and operational method |
| CN109005799A (en) * | 2018-06-28 | 2018-12-18 | 安徽灵杨农机制造有限公司 | A kind of soybean planting sowing leg |
| CN110402786A (en) * | 2018-04-26 | 2019-11-05 | 北京林业大学 | A kind of planting out technical method based on UAV/GIS/GNSS and high pressure ejection plant seeds by airplane trees seed |
| CN112273001A (en) * | 2020-10-14 | 2021-01-29 | 郭建明 | Planting mechanism for ecological restoration of rivers, lakes and riverways |
| CN113958756A (en) * | 2021-10-20 | 2022-01-21 | 济南华庆农业机械科技有限公司 | Multi-row seeder control system and method |
-
2010
- 2010-12-27 CN CN2010106062516A patent/CN102160486A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 戴飞等: "基于PLC控制的气动射种机构设计", 《湖北农业科学》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771226A (en) * | 2012-08-23 | 2012-11-14 | 黑龙江省海轮王农机制造有限公司 | Sowing machine based on automatic control system |
| CN102771226B (en) * | 2012-08-23 | 2014-10-22 | 黑龙江省海轮王农机制造有限公司 | Sowing machine based on automatic control system |
| CN104081919A (en) * | 2014-06-16 | 2014-10-08 | 孔祥金 | Seeder |
| CN104081919B (en) * | 2014-06-16 | 2017-03-08 | 孔祥金 | A kind of seeder |
| US9868597B2 (en) | 2014-12-02 | 2018-01-16 | Cnh Industrial Canada, Ltd. | System and method for an air cart and rotary air lock |
| CN104770117B (en) * | 2015-01-21 | 2017-02-01 | 沈阳工程学院 | Intelligent seed selection mechanism of agricultural seeder |
| CN104770117A (en) * | 2015-01-21 | 2015-07-15 | 沈阳工程学院 | Intelligent seed selection mechanism of agricultural seeder |
| CN104798471A (en) * | 2015-05-17 | 2015-07-29 | 长江大学 | Valve type multifunctional precision seeder |
| CN104782278A (en) * | 2015-05-17 | 2015-07-22 | 长江大学 | Precise seed taking device for precise seeding machine |
| CN105103733A (en) * | 2015-09-15 | 2015-12-02 | 冯成伟 | Air-blasting precise seeder |
| CN106576525A (en) * | 2015-10-15 | 2017-04-26 | 四川农业大学 | Ejector rod type adjustable seeder |
| CN105173084A (en) * | 2015-10-29 | 2015-12-23 | 黑龙江科技大学 | Aerial seeding device for unmanned aerial vehicle |
| CN106717356A (en) * | 2017-01-22 | 2017-05-31 | 河北农业大学 | District seeder |
| CN107750543A (en) * | 2017-11-20 | 2018-03-06 | 中国农业大学 | Unmanned aerial vehicle onboard is precisely to target seeding system and operational method |
| CN110402786A (en) * | 2018-04-26 | 2019-11-05 | 北京林业大学 | A kind of planting out technical method based on UAV/GIS/GNSS and high pressure ejection plant seeds by airplane trees seed |
| CN109005799A (en) * | 2018-06-28 | 2018-12-18 | 安徽灵杨农机制造有限公司 | A kind of soybean planting sowing leg |
| CN112273001A (en) * | 2020-10-14 | 2021-01-29 | 郭建明 | Planting mechanism for ecological restoration of rivers, lakes and riverways |
| CN113958756A (en) * | 2021-10-20 | 2022-01-21 | 济南华庆农业机械科技有限公司 | Multi-row seeder control system and method |
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Application publication date: 20110824 |