CN201307994Y - Pneumatic-type single-seed rice precision seeder - Google Patents
Pneumatic-type single-seed rice precision seeder Download PDFInfo
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- CN201307994Y CN201307994Y CNU2008202005071U CN200820200507U CN201307994Y CN 201307994 Y CN201307994 Y CN 201307994Y CN U2008202005071 U CNU2008202005071 U CN U2008202005071U CN 200820200507 U CN200820200507 U CN 200820200507U CN 201307994 Y CN201307994 Y CN 201307994Y
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Abstract
The utility model relates to a pneumatic-type single-seed rice precision seeder, which mainly comprises a seed supply mechanism, a seed selection mechanism, a seed suction and discharge mechanism, a frame, a conveying chain, a singlechip control system, etc., wherein the seed supply mechanism is used for quantitatively feeding seeds to the seed selection mechanism by use of electromagnetic rotation; the seed selection mechanism is used for selecting seeds from a seed selection box; the seed suction and discharge mechanism sucks the selected single seed by use of negative pressure and then discharges the seed to corresponding cavity by use of positive pressure; the entire seeder is controlled by the singlechip control system; a cavity tray is conveyed by the conveying chain and is located by a photoelectric sensor; the seed selection mechanism and the seed suction and discharge mechanism are all driven by cylinder; the conveying chain is driven by a step motor; and the entire seeder is supplied with seed according to electromagnetic rotation and can achieve simultaneous seeding in rows. The pneumatic-type single-seed rice precision seeder has the advantages of improved single seeding rate, reduced cavity rate, improved comprehensive seeding performance, reduced consumption of high-quality seeds, reduced man power, reduced cost and improved yield.
Description
Technical field
The utility model relates to the pneumatic type paddy rice simple grain precision planter of a kind of high-quality hybrid paddy rice.
Background technology
The paddy rice plantation is at present based on the seedling transplanting, and precise sowing is the key link that the mechanization seedling is produced.The domestic paddy rice precision planter of having developed mainly contains types such as mechanical type, pneumatic type and Electromagnetically vibrating at present, can satisfy conventional rice 3-5 grain/cave, the requirement of qualification rate＞85%, but, be still the difficult point of current paddy rice precise sowing technology to the requirement in high-quality hybrid rice 1-2 grain/cave.
Current global crisis in food is increasingly serious; development simple grain paddy rice precision planter; for saving elite seed; the saving thinning is artificial; guarantee that seedling is neat, seedling strong and rational planting density; improve output simultaneously, have important practical significance, how to realize that the accurate cave of the simple grain dish sowing of high-quality hybrid paddy rice is the difficult problem that industry faces.
The utility model content
The technical problem that the utility model solves provides a kind of pneumatic type paddy rice simple grain precision planter, and to improve complete machine sowing simple grain rate, the reduction hole rate improves comprehensive sowing performance, helps saving elite seed, saves manually, reduces cost, and improves output simultaneously.
For addressing the above problem, the utility model adopts following technical scheme:
A kind of pneumatic type paddy rice simple grain precision planter, it comprises:
Frame, be positioned on the frame for kind of a mechanism, seed selection mechanism, suction kind mechanism and be positioned at carrier chain under the frame, and carry out the corresponding single-chip computer control system of controlling for kind, seed selection, suction kind and cave dish conveying function for kind of a mechanism, seed selection mechanism, suction kind mechanism and carrier chain to described;
Wherein, described for planting mechanism by supplying kind of a case, plate washer, constituting for kind of a plate, latch plate, electromagnetic vibrator and base portion, wherein said for supplying to plant the zone of case for filling kind of a district near described on kind of the plate, seed relies on self gravitation to pile up for whereabouts kind of the case from described, separate at the vibration effect of the described electromagnetic vibrator heap of sowing, and progressively be slipped to downwards in the seed selection case of seed selection mechanism, at described exit design one for kind of case plate washer movably, regulate described for the opening amount of planting case;
Described seed selection mechanism is made of seed selection case, seed selection bar, cylinder, guide post, support and infrared sensor, wherein said seed selection case and described cylinder are fixedly mounted on the support, described cylinder piston is connected with one group of seed selection bar, repeatedly move up and down in described seed selection case by the described seed selection bar of air cylinder driven, select one group of single seed, described guide post rises to move up and down and prevents deflecting action, described infrared sensor is fixed on the support, by changing its installation site, the grain weight in the control seed selection case;
Described suction kind mechanism is by inhaling kind of a pipe, grain conductor, cylinder, guide post, air chamber and being configured to, wherein said air chamber two ends are connected with positive and negative pressurized air source, the bottom is connected with one group of suction kind of pipe, air chamber and the atmospheric pressure state of inhaling in kind of the pipe switch by solenoid directional control valve, the piston rod of described cylinder and air chamber side are connected, do straight reciprocating motion by solenoid directional control valve control, guide post plays motion process anti-deflection effect, grain conductor is fixedly mounted on the support, determines each feeding position.
Wherein, inhale kind of the suction nozzle diameter that pipe is terminal and can be the 0.8-1.2 millimeter.
Wherein, seed selection bar cross section is oval, and major axis is 11mm, and minor axis is 7mm, 45 ° of chamferings of tip designs, and the initial seed selection of seed selection masthead end is 6mm with seed selection case distance from bottom, the wide 2.3mm of seed selection masthead end groove, dark 1.5mm.
Compared with prior art, the utlity model has following beneficial effect:
Pneumatic type paddy rice simple grain precision planter of the present utility model, it utilizes the electric and magnetic oscillation principle with seed weight feed seed selection mechanism for kind of a mechanism, seed selection mechanism selects single seed from the seed selection case, the single seed that suction kind mechanism utilizes negative-pressure adsorption to select, and utilize malleation that seed is discharged to the cave to coil in the hole, corresponding cave.Complete machine is controlled by SCM system, and the cave dish is transported by carrier chain, and by the photoelectric sensor detection and location.Can effectively improve complete machine sowing simple grain rate, the reduction hole rate improves comprehensive sowing performance, helps saving elite seed, saves manually, reduces cost, and improves output simultaneously.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the utility model pneumatic type paddy rice simple grain precision planter;
Fig. 2 is for planting mechanism for a kind of example structure schematic diagram of planting in the utility model pneumatic type paddy rice simple grain precision planter;
Fig. 3 is a kind of example structure schematic diagram of seed selection mechanism seed selection in the utility model pneumatic type paddy rice simple grain precision planter;
Fig. 4 is a kind of example structure schematic diagram of seed selection bar in the utility model pneumatic type paddy rice simple grain precision planter;
Fig. 5 is a kind of example structure schematic diagram of suction kind mechanism suction kind in the utility model pneumatic type paddy rice simple grain precision planter.
Embodiment
Pneumatic type paddy rice simple grain precision planter of the present utility model, mainly by constituting for parts such as kind of a mechanism, seed selection mechanism, suction kind mechanism, frame, carrier chain and single-chip computer control systems, its principle is as follows:
Utilize the electric and magnetic oscillation principle with seed weight feed seed selection mechanism for kind of a mechanism, seed selection mechanism selects single seed from the seed selection case, the single seed that suction kind mechanism utilizes negative-pressure adsorption to select, and utilize malleation that seed is discharged to the cave to coil in the hole, corresponding cave, complete machine is controlled by single-chip computer control system, the cave dish is transported by carrier chain, and by the photoelectric sensor detection and location, wherein, seed selection mechanism and suction kind mechanism are by air cylinder driven, carrier chain is driven by stepper motor, and complete machine utilizes the electric and magnetic oscillation principle for planting, and the realization full line is sowed simultaneously.
Once sowing in the course of work, cave dish is transported by carrier chain, and detects control by photoelectric sensor, make delegation wait to broadcast the hole, cave be registered to grain conductor under.Supply to plant a mechanism and utilize infrared sensor to detect, when the grain weight deficiency, in the seed selection case, supply to plant by electromagnetic oscillation device for kind of mechanism for the interior grain weight of kind of case.Seed selection mechanism repeatedly pumps by air cylinder driven seed selection bar, and single seed is elected from the seed selection case.Then the suction kind pipe of suction kind mechanism is shifted onto the top of seed selection bar by cylinder, inhale kind of a Guan Zhongtong negative pressure, seed is being adsorbed under the effect of pull of vacuum on suction kind of the pipe, inhale then kind of pipe move under the effect of cylinder grain conductor above, inhale logical malleation in kind of the pipe, seed falls into dish lastrow hole, cave to be broadcast, cave through grain conductor under the effect of normal pressure.
With reference to figure 1, this figure is a specific embodiment of pneumatic type paddy rice simple grain precision planter, and the sower of present embodiment mainly comprises: for kind of a case 1, for kind of a mechanism 2, for kind of a plate 3, seed selection case 4, inhale kind of a pipe 5, suction kind cylinder 6, suction kind mechanism 7, frame 8 falls to plant pipe 9, carrier chain 10, seed selection mechanism 11, seed selection bar 12, seed selection cylinder 13, stepper motor 14 and single-chip computer control system 15.
Describe the each several part concrete structure of pneumatic type paddy rice simple grain precision planter of the present utility model below respectively in detail.
With reference to figure 2, for planting mechanism by supplying kind of a case 101, plate washer 102, partly constituting for kind of a plate 103, latch plate 104, electromagnetic vibrator 105 and base 106 etc., as shown in Figure 2.It mainly acts on is to utilize electromagnetic vibrator, will enter the seed selection case from progressively throwing to send with certain speed for kind of the seed that the case opening part enters.By regulating the voltage and the frequency of electromagnetic vibrator input pulse electric current, can control amplitude and frequency for kind of panel vibration.
Among Fig. 2 on kind of the plate near for the zone of kind of case for filling kind of a district, seed relies on self gravitation from for falling to piling up kind of the case, separates at the vibration effect of the electromagnetic vibrator heap of sowing, and progressively is slipped to downwards in the case of choosing seeds.The size that supplies to plant the openings of sizes of case and determined amount of seed metering for the vibration velocity of kind of plate.Be consistent with from supply kind of case, relying on the speed of gravity seeding for making for the vibration velocity of kind of plate, preventing that seed from falling into occurs two-layer before the seed selection case or multilayer is overlapping, influence the control and the seeding uniformity of seeding speed, for the exit design one of kind of case plate washer movably, regulate opening amount for kind of case.By regulating the amplitude and the frequency of electromagnetic vibrator, and correspondingly change opening amount, can in control seeding speed, keep desirable kind of the effect of sending for kind of case.
With reference to figure 3, seed selection mechanism mainly partly is made up of seed selection case 201, guide post 202, seed selection bar 203, infrared sensor 204, support 205 and cylinder 206 etc., as shown in Figure 3.Seed selection case and cylinder are fixedly mounted on the support, and cylinder piston is connected with one group of seed selection bar, drive the seed selection bar by the gas thick stick and repeatedly move up and down in the seed selection case, select one group of single seed, and guide post rises to move up and down and prevents deflecting action.Infrared sensor is fixed on the support, can be by changing its installation site, the grain weight in the control seed selection case.
In the seed selection process, the stroke size influence seed selection effect of seed selection bar in seed selection case seed heap.Get the initial seed selection of the seed selection masthead end and case distance from bottom size 0.5mm, 1mm, 3mm, 5mm, 6mm and 7mm totally six levels of choosing seeds, the seed piling height is 10mm in the seed selection case, under seed selection masthead end recess width 2.3mm and the degree of depth 1.5mm condition, choose that Guangdong emergingly accounts for, Guangdong perfume (or spice) accounts for, sticking 89 (make 07 evening) of round-grained rice and No. 1 four strains of change sense rice, six levels are carried out 100 seed selection tests respectively, randomly draw 10 statistical average seed selection result.Result of the test shows that when seed selection bar upper surface and seed selection case distance from bottom 6mm, the probability of selecting simple grain is the highest, and the probability that the hole occurs is minimum, and the seed selection effect is best.
The seed selection bar is by the groove seed selection on top, and the seed selection masthead end recess width and the degree of depth are one of factors that influences simple grain seed selection effect, design four kinds of seed selection bar dimensional parameters, and be as shown in table 1.
Table 1 groove size parameter
| Seed selection bar number | The wide B of groove (mm) | The dark H of groove (mm) |
| (1) | 2 | 1.5 |
| (2) | 2.3 | 1.5 |
| (3) | 2.6 | 1.9 |
| (4) | 2.9 | 1.9 |
Choose that Guangdong emergingly accounts for, Guangdong perfume (or spice) accounts for, sticking 89 (make 07 evening) of round-grained rice and No. 1 four strains of change sense rice, four kinds of seed selection bars are carried out the seed selection experiment of different rice varieties respectively, every group of experiment repeats 100 times, randomly draw assembly average 10 times, result of the test shows, (1) other three kinds of bars are higher relatively for number bar simple grain rate, but hole rate is also higher relatively.The probability of choosing 2 also is minimum in four groups of bars, and choosing 3 or above probability is zero substantially.(2) number bar simple grain rate is lower than (1) number bar, but hole rate is zero substantially, and likelihood ratio (1) number bar of choosing 2 is big slightly, and choosing 3 or above probability is zero substantially.(3) to choose 2 probability very big for number bar, and hole rate is zero, also can choose 3 once in a while.(4) number bar simple grain rate is equal substantially with 2 rates, and hole rate is zero, the situation that more appearance is 3.To the four strains in this test, the effect relative ideal of (1) and (2) number bar, simple grain rate height; (1) and (2) number pole pair ratio, though (1) number bar simple grain rate height, its hole rate is also than (2) number bar height.It is relatively good to take all factors into consideration (2) number bar seed selection effect.
Be the appearance similar that makes groove shapes size and rice paddy seed, and only can hold single seed, get its top cross section for oval, major axis 11mm, minor axis 7mm, the centre holds the wide 2.3mm of being of groove of seed, is 1.5mm deeply.The smooth landing of seed-grain for allowing in selecting not simultaneously, the chamfering that the masthead design is 45 °, concrete contour structures is as shown in Figure 4.
With reference to figure 5, suction kind mechanism mainly is made of cylinder 301, guide post 302, air chamber 303, suction kind of pipe 304, support 305 and grain conductor 306 etc., as shown in Figure 5.The air chamber two ends are connected with positive and negative pressurized air source, and the bottom is connected with one group of suction kind of pipe, and air chamber and suction kind of the atmospheric pressure state that pipe is interior switches by solenoid directional control valve.The piston rod of cylinder and air chamber side are connected, and do straight reciprocating motion by solenoid directional control valve control, and guide post plays motion process anti-deflection effect.Grain conductor is fixedly mounted on the support, determines each feeding position.
Inhaling kind of the suction nozzle diameter that pipe is terminal is one of principal element that influences suction kind effect, according to d=(0.6-0.7) b
c [6], (b
cAverage diameter for seed), in conjunction with preliminary experiment, the suction nozzle diameter for 0.8-1.2mm time sowing effect better.
Seed selection mechanism and suction kind mechanism are by pneumatic actuation in the utility model, the pneumatic system major function comprises: speed, direction and Stroke Control that the seed selection bar moves up and down, inhale kind of speed, direction and the Stroke Control of pipe forward-reverse, inhale in kind of the pipe positive and negative crush-cutting and change etc.Malleation is provided by air compressor in the pneumatic system, and negative pressure is provided by vavuum pump.The direction of motion of the driving cylinder of seed selection bar and suction kind of pipe is by 3 position-5 way solenoid directional control valve A, B control, and movement velocity is regulated by two groups of choke valve F1 and F2, and stroke is set by the position sensor on the cylinder.Positive and negative crush-cutting changes the control by bi-bit bi-pass solenoid directional control valve C, D in suction kind of the pipe, when solenoid directional control valve C connection D disconnects, inhales the interior logical malleation of kind of pipe; When solenoid directional control valve C disconnects the D connection, inhale in kind of the pipe and lead to negative pressure; When C, D all disconnected, inhaling in kind of the pipe was normality.
In addition, the size of chamber vacuum degree is one of principal element that influences the seed adsorption effect, and the big more absorption affinity to seed of vacuum is big more, and the distance of suction nozzle and seed can be big more, but after vacuum was increased to a certain degree, inhaling kind of a distance no longer increased.Vacuum is crossed conference and is caused many rates increases in addition.Preliminary experiment is the result show, vacuum is in the 0.9-1.2kPa scope, and each suction nozzle end centre distance seed selection masthead portion center vertical direction is 0.8-1.9mm on suction kind of the bar, and when being 0-1.8mm on the horizontal direction, the sowing effect is more satisfactory.
Need explanation, utilize the electromagnetic exciter vibration for kind of a mechanism in the utility model, seed weight feed seed selection mechanism.Seed selection mechanism and suction kind mechanism are by air cylinder driven, and carrier chain is driven by stepper motor.Complete machine malleation source of the gas is an air compressor, and the negative pressure source of the gas is a vavuum pump.In suction kind course of work, the cave dish is transported by carrier chain, makes and waits to broadcast the feeding position that the hole, cave accurately navigates to suction kind mechanism.Seed selection mechanism selects single seed by seed selection bar jack-up repeatedly up and down from the seed selection case.Suction kind mechanism utilizes malleation seed to be discharged to the cave at feeding position and coils in the hole, corresponding cave at the single seed that the seed selection position utilizes negative-pressure adsorption to select.Therefore, according to the sower operation principle, system should be able to control the cave dish and locate, the reciprocating motion of suction kind cylinder, and the positive and negative crush-cutting of suction nozzle changes, and the cylinder of choosing seeds rises and descends, and supplies to plant the startup of vibrator and stop.According to positioning accuracy request, select Changfeng, Shanghai optoelectronic switch E18-B01N1 for use, detect dish position, cave, carrier chain is driven by Japanese east PK296B2-SG10 stepper motor.Suction kind and seed selection cylinder are controlled with Ya De, Guangzhou gram 3 position-5 way magnetic valve 4V230C-08, and positive negative pressure is switched by the pneumatic bi-bit bi-pass solenoid directional control valve UD-10 of the work of nature in the suction nozzle.Grain weight in the seed selection case selects for use the E3T-SL21 infrared sensor of Omron Corp to detect, and adopts CZQ314 type electromagnetic actuator to provide for the vibration of kind of mechanism.
Owing to adopt stepper motor to drive, require controller to have the pulse signal of transmission function, can adopt single-chip microcomputer or Programmable Logic Controller (PLC) control.The relative Programmable Logic Controller of single-chip microcomputer is with low cost, high cost performance, and selected theses is realized sower control with anti-interference and stable better STC89C51 single-chip microcomputer.
To sum up, pneumatic type paddy rice simple grain precision planter of the present utility model utilizes vibration principle for planting, and seed selection mechanism selects single seed, and suction kind mechanism inhales by negative pressure and plants the malleation seeding.To designing, and determined critical feature size and running parameter in conjunction with the preliminary experiment result for kind of a mechanism, choose seeds mechanism, suction kind mechanism and complete machine atmospheric control.For example, Guangdong perfume (or spice) is accounted for, changes sense rice No. 1 and three rice varieties difference of sticking 89 (make 07 evening) of round-grained rice research experiment.Experimental study shows that to dissimilar seeds, by reasonable adjusting running parameter, complete machine sowing simple grain rate is higher than 85%, hole rate all is lower than 6%, and qualification rate is greater than 90%, comprehensively sows functionally, can save elite seed, save manually, reduce cost, improve output simultaneously.
The above only is an embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1, a kind of pneumatic type paddy rice simple grain precision planter is characterized in that, comprising:
Frame, be positioned on the frame for kind of a mechanism, seed selection mechanism, suction kind mechanism and be positioned at carrier chain under the frame, and carry out the corresponding single-chip computer control system of controlling for kind, seed selection, suction kind and cave dish conveying function for kind of a mechanism, seed selection mechanism, suction kind mechanism and carrier chain to described;
Wherein, described for planting mechanism by supplying kind of a case, plate washer, constituting for kind of a plate, latch plate, electromagnetic vibrator and base portion, wherein said for supplying to plant the zone of case for filling kind of a district near described on kind of the plate, seed relies on self gravitation to pile up for whereabouts kind of the case from described, separate at the vibration effect of the described electromagnetic vibrator heap of sowing, and progressively be slipped to downwards in the seed selection case of seed selection mechanism, at described exit design one for kind of case plate washer movably, regulate described for the opening amount of planting case;
Described seed selection mechanism is made of seed selection case, seed selection bar, cylinder, guide post, support and infrared sensor, wherein said seed selection case and described cylinder are fixedly mounted on the support, described cylinder piston is connected with one group of seed selection bar, repeatedly move up and down in described seed selection case by the described seed selection bar of air cylinder driven, select one group of single seed, described guide post rises to move up and down and prevents deflecting action, described infrared sensor is fixed on the support, by changing its installation site, the grain weight in the control seed selection case;
Described suction kind mechanism is by inhaling kind of a pipe, grain conductor, cylinder, guide post, air chamber and being configured to, wherein said air chamber two ends are connected with positive and negative pressurized air source, the bottom is connected with one group of suction kind of pipe, air chamber and the atmospheric pressure state of inhaling in kind of the pipe switch by solenoid directional control valve, the piston rod of described cylinder and air chamber side are connected, do straight reciprocating motion by solenoid directional control valve control, guide post plays motion process anti-deflection effect, grain conductor is fixedly mounted on the support, determines each feeding position.
2, pneumatic type paddy rice simple grain precision planter according to claim 1 is characterized in that, inhaling kind of the suction nozzle diameter that pipe is terminal is the 0.8-1.2 millimeter.
3, pneumatic type paddy rice simple grain precision planter according to claim 1, it is characterized in that, seed selection bar cross section is oval, major axis is 11mm, minor axis is 7mm, 45 ° of chamferings of tip designs, and the initial seed selection of seed selection masthead end is 6mm with seed selection case distance from bottom, the wide 2.3mm of seed selection masthead end groove, dark 1.5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008202005071U CN201307994Y (en) | 2008-09-16 | 2008-09-16 | Pneumatic-type single-seed rice precision seeder |
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| CNU2008202005071U CN201307994Y (en) | 2008-09-16 | 2008-09-16 | Pneumatic-type single-seed rice precision seeder |
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| CN102652472A (en) * | 2012-04-18 | 2012-09-05 | 北京农业智能装备技术研究中心 | Seeding nozzle with self-cleaning and anti-blocking functions and seeding device with nozzle |
| CN103069953A (en) * | 2013-01-08 | 2013-05-01 | 北京农业智能装备技术研究中心 | Directional sowing device for long seeds |
| CN103766051A (en) * | 2014-02-18 | 2014-05-07 | 山西省农业机械化科学研究院 | Intelligent planter |
| CN104396395A (en) * | 2014-12-17 | 2015-03-11 | 银川利智信知识产权咨询服务有限公司 | Potato seeder |
| CN104904381A (en) * | 2015-06-03 | 2015-09-16 | 辽宁科技大学 | Portable seed feeding device of seeding machine having automatic detection function |
| CN105144922A (en) * | 2015-09-16 | 2015-12-16 | 安庆市宜秀区永兴农机农艺综合发展专业合作社 | Pneumatic seeder |
| CN105478376A (en) * | 2015-12-31 | 2016-04-13 | 中国农业大学 | Seed separation device and seed vigor non-destructive testing system |
| CN106941823A (en) * | 2017-04-07 | 2017-07-14 | 南京农业大学 | Hand-held gas control type small granule seed monoseeding device |
| CN109618777A (en) * | 2019-01-21 | 2019-04-16 | 房双龙 | A kind of rice electronics direct seeding tectorial membrane machine |
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| CN102652472A (en) * | 2012-04-18 | 2012-09-05 | 北京农业智能装备技术研究中心 | Seeding nozzle with self-cleaning and anti-blocking functions and seeding device with nozzle |
| CN103069953A (en) * | 2013-01-08 | 2013-05-01 | 北京农业智能装备技术研究中心 | Directional sowing device for long seeds |
| CN103069953B (en) * | 2013-01-08 | 2015-09-30 | 北京农业智能装备技术研究中心 | Elongated seed directional seeder |
| CN103766051B (en) * | 2014-02-18 | 2016-04-06 | 山西省农业机械化科学研究院 | A kind of intelligent seeder |
| CN103766051A (en) * | 2014-02-18 | 2014-05-07 | 山西省农业机械化科学研究院 | Intelligent planter |
| CN104396395A (en) * | 2014-12-17 | 2015-03-11 | 银川利智信知识产权咨询服务有限公司 | Potato seeder |
| CN104904381B (en) * | 2015-06-03 | 2016-08-24 | 辽宁科技大学 | A kind of portable sowing machine with automatic detection function send kind of a device |
| CN104904381A (en) * | 2015-06-03 | 2015-09-16 | 辽宁科技大学 | Portable seed feeding device of seeding machine having automatic detection function |
| CN105144922A (en) * | 2015-09-16 | 2015-12-16 | 安庆市宜秀区永兴农机农艺综合发展专业合作社 | Pneumatic seeder |
| CN105478376A (en) * | 2015-12-31 | 2016-04-13 | 中国农业大学 | Seed separation device and seed vigor non-destructive testing system |
| CN106941823A (en) * | 2017-04-07 | 2017-07-14 | 南京农业大学 | Hand-held gas control type small granule seed monoseeding device |
| CN109618777A (en) * | 2019-01-21 | 2019-04-16 | 房双龙 | A kind of rice electronics direct seeding tectorial membrane machine |
| CN109618777B (en) * | 2019-01-21 | 2023-11-14 | 房双龙 | Rice electron live broadcast laminating machine |
| CN114532004A (en) * | 2022-03-11 | 2022-05-27 | 黄淮学院 | A seeder for thesium chinese is planted |
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