CN104396388B - One exempts from thinning film side millet drill for sowing in lines - Google Patents
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- CN104396388B CN104396388B CN201410545206.2A CN201410545206A CN104396388B CN 104396388 B CN104396388 B CN 104396388B CN 201410545206 A CN201410545206 A CN 201410545206A CN 104396388 B CN104396388 B CN 104396388B
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Abstract
One exempts from thinning film side millet drill for sowing in lines, belongs to agricultural machinery, and it is by tractor, plough, road wheel, biofilm roller, hook soil dish, film-spreading roller, pressing wheel, broadcasts paddy dish, paddy feeding pipe, and earthing dish, pack roller, water tank, paddy hopper, fertiliser bucket form；Plough, road wheel, biofilm roller, hook soil dish, film-spreading roller, pressing wheel, broadcast paddy dish, paddy feeding pipe, earthing dish, pack roller, water tank, paddy hopper and fertiliser bucket be all fixedly installed togather with frame, and frame is connected with tractor；Paddy hopper is provided with vibrator, is provided with blanking plate and grain counter controller at the rice outlet of paddy hopper, and blanking plate connects grain counter controller.The present invention can realize millet film-covering planting and film side quantitative drilling integration, particularly can quantitatively sow, save seed consumption, reduce sowing cost.
Description
Technical field
The invention belongs to agricultural machinery, for small-sized millet seeder, particularly relate to one and exempt from thinning film side millet drill for sowing in lines.
Background technology
Millet is one of the northern area of China staple food crop.Cultivated area accounts for about the 5% of whole nation cereal crops sown area, accounts for the 10～15% of north cereal crops sown area, bigger at some Hills areas, accounts for the 30～40% of grainfield area.
Owing to millet is drought-enduring, barren-resistant, strong stress resistance, wide adaptability, therefore to plant more on the barren arid plot in high mountain abrupt slope or soil, after emerging, show the characteristic of drought resisting stable yields, harvest is preferable.Both can be as drought-resistant crops, arable farming of can preparing against natural disasters again.But, owing to most of Drylands are the most rainless for spring, sowing problem of keeping a full stand of seedings still has a strong impact on millet and normally produces.Date of seeding soil moisture conservation is difficult and trophophase water supply deficiency remains the bottleneck that restriction millet produces and yield promotes.
Millet film-covering planting have the biggest soil moisture conservation, be incubated, keep a full stand of seedings, effect of increasing production, soil moisture in sowing can be made full use of, it is ensured that sow on schedule.Therefore, in the dry type district that soil is barren, use Plastic-film corn plantation millet respond well.
Millet wheat grown along film sides can ensure soil moisture content to a great extent, improve ground temperature, guarantee emergence rate, therefore Dryland millet peasant household advanced person pedestrian work covering with plastic film, the then drilling of caudacoria side trench digging.But, artificial overlay film and film side trench digging drilling operation link are loaded down with trivial details and time-consuming, need to take several labour, and labor intensity amount is big.
The advantage kept a full stand of seedings for millet Membranous growth and the time-consuming feature of artificial film-side drilling, occur in that function millet film-side drilling machine simply.The general mulch film configuring wide cut 40cm, film both sides field planting 2 row millet, all use trench digging bar broadcast mode.
Existing millet film-side drilling machine generally manpower or people and animals combine working method, if selecting manpower production method, will at least need 2 between twenty and fifty manpowers to pull machinery, and 1 labour force grasps and balancing machine, adds up to and takies artificial 3～4.If the production method selecting people and animals to combine, then needing 1 domestic animal (farm cattle etc.) to pull machinery, catch up with workday per draught animal for 1,1 labour force grasps and balancing machine, adds up to and takies animal power 1, artificial 2.Two kinds of mode of operation intensity are very big, all take at least 2 manpowers.Existing millet film-side drilling machinery is general uses mechanical type gear hobbing type feed mechanism for seed, belongs to continuous dispenser, and therefore the amount of sowing is big, and spacing in the rows is uneven, and seedling stage must artificial thinning.
Summary of the invention
In order to reduce the amount of sowing, the present invention provides a kind of portable to exempt from thinning film side millet drill for sowing in lines.It is capable of covering with plastic film and carries out film-side drilling, and exempts from the drill for sowing in lines of thinning seedling stage, it is achieved Dryland cereal the sowing soil moisture conservation of link, seedling protecting effect, also saves thinning link for seedling management.
Technical scheme: one exempts from thinning film side millet drill for sowing in lines, by tractor, plough, road wheel, biofilm roller, hook soil dish, film-spreading roller, pressing wheel, broadcast paddy dish, paddy feeding pipe, earthing dish, pack roller, water tank, paddy hopper, fertiliser bucket form；
Plough, road wheel, biofilm roller, hook soil dish, film-spreading roller, pressing wheel, broadcast paddy dish, paddy feeding pipe, earthing dish, pack roller, water tank, paddy hopper and fertiliser bucket be all fixedly installed togather with frame, and frame is connected with tractor；Paddy hopper is provided with vibrator, is provided with blanking plate and grain counter controller at the rice outlet of paddy hopper, and blanking plate connects grain counter controller；
Paddy hopper connects paddy feeding pipe, and paddy feeding pipe inserts and broadcasts paddy dish；Broadcasting paddy dish to be made up of fixed disk and rotating disk, fixed disk is coaxial with rotating disk, and fixed disk is welded on axle sleeve, and rotating disk is connected with rotating shaft by bearing；
Fixed disk is provided with circular socket holes, and paddy feeding pipe inserts circular socket holes, the baffle plate of paddy feeding pipe mouth alignment rotating disk；
The periphery of rotating disk is equidistantly positioned some lower paddy mouths, and rotating disk is provided with grain guiding trough, and grain can be imported in lower paddy mouth by grain guiding trough；The top of lower paddy mouth is sharp end；
Described grain counter controller includes light source, sensor, amplifying circuit, comparison circuit, single-chip microcomputer and A/D converter, D/A converter, sensor obtains grain shielding signals, the amplified circuit of sensor input signal is amplified to suitable amplitude, compare with the passage threshold voltage of D/A converter output, produce digit pulse and carried out accumulated counts by enumerator, data are read again by single-chip microcomputer, control switch by I/O controller after being changed by A/D converter and close the blanking plate of shut-in hopper, make the output of paddy hopper have the seed of metering.
The present invention can realize millet film-covering planting and film side quantitative drilling integration, particularly can quantitatively sow, save seed consumption, reduce sowing cost, eliminates thinning operation in seedling stage, reduces labor intensity；Solve Dryland cereal soil moisture conservation in sowing time, an insulation difficult problem simultaneously, overcome the problem that date of seeding cannot be sowed or be postponed to millet open country in sowing time flat planting rapidly because of the topsoil evaporation of water in soil.Plastic film mulch ridge forms arch, is effectively utilized rainfall.
The present invention, by carrying out millet wheat grown along film sides, overcomes because of sending out of causing of the few moisture in the soil of the topsoil evaporation of water in soil in seedling stage that Seedling is slow, Seedling gesture is weak and soil moisture such as cannot take root less at the defect.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the schematic enlarged-scale view of seed tray in the present invention.
Fig. 4 is the schematic enlarged-scale view of seeder in the present invention.
Fig. 5 is cooperation position figure between rotating disk 23 and paddy feeding pipe 8 in the present invention.
Fig. 6 is the block diagram of grain counter controller in the present invention.
Fig. 7 is the amplification circuit diagram of grain counter controller in the present invention.
Fig. 8 is the comparison circuit figure of grain counter controller in the present invention.
Fig. 9 is the analog-to-digital converter circuit figure of grain counter controller in the present invention.
In figure, 1, plough, 2, road wheel, 3, biofilm roller, 4, hook soil dish, 5, film-spreading roller, 6, pressing wheel, 7, broadcast paddy dish, 8, paddy feeding pipe, 9, earthing dish, 10, pack roller, 11, water tank, 12, paddy hopper, 13, rice outlet, 14, vibrator, 15, blanking plate, 16, grain counter controller, 17, fertiliser bucket, 18, frame, 19, Xia Guzui, 20, grain guiding trough, 21, rotating shaft, 22, fixed disk, 23, rotating disk, 24, jack, 25, baffle plate.
Detailed description of the invention
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, portable exempts from thinning film side millet drill for sowing in lines, including actuating unit (tractor), plough 1, road wheel 2, biofilm roller 3, hook soil dish 4, film-spreading roller 5, pressing wheel 6, broadcasts paddy dish 7, paddy feeding pipe 8, earthing dish 9, pack roller 10, water tank 11, paddy hopper 12, fertiliser bucket 17 form.
Plough 1, road wheel 2, biofilm roller 3, hook soil dish 4, film-spreading roller 5, pressing wheel 6, broadcast paddy dish 7, paddy feeding pipe 8, earthing dish 9, pack roller 10, water tank 11, paddy hopper 12 and fertiliser bucket 17 are all fixedly installed togather with frame 18.Frame 18 is connected with tractor.
Frame uses metal tube to be welded into frame structure.
By biofilm roller 3, hook soil dish 4, film-spreading roller 5, pressing wheel 6 constitutes film-covering mechanism.
By paddy hopper 12, paddy feeding pipe 8, broadcasting paddy dish 7, earthing dish 9, vibrator 14, blanking plate 15, grain counter controller 16, fixed disk 22, rotating disk 23 constitute sowing mechanism.
Fixed disk 22 is coaxial with rotating disk 23, and fixed disk 22 is welded on axle sleeve, and rotating disk 23 is connected with rotating shaft 21 by bearing.
Broadcast paddy dish 7 to be made up of fixed disk 22 and rotating disk 23.Fixed disk 22 is provided with circular socket holes 24, and paddy feeding pipe 8 inserts circular socket holes 24, the baffle plate 25 of paddy feeding pipe mouth alignment rotating disk 23.
The periphery of rotating disk 23 is equidistantly positioned some lower paddy mouths 19, and rotating disk 23 is provided with grain guiding trough 20, and grain can be imported in lower paddy mouth 19 by grain guiding trough 20.The top of lower paddy mouth 19 is most advanced and sophisticated, and the effect of lower paddy mouth 19 also has the function penetrating thin film.
The rice outlet 13 of paddy hopper 12 is thin seam, and paddy hopper 12 is provided with vibrator 14, and vibrator 14 is vibrating motor.
Being provided with blanking plate 15 at rice outlet 13, blanking plate 15 controls folding by grain counter controller 16.
Shown in Fig. 6, grain counter controller includes light source, sensor, amplifying circuit, comparison circuit, single-chip microcomputer and A/D converter, D/A converter, sensor obtains grain shielding signals, the amplified circuit of sensor input signal is amplified to suitable amplitude, compare with the passage threshold voltage of D/A converter output, produce digit pulse and carried out accumulated counts by enumerator, data are read again by single-chip microcomputer, control switch by I/O controller after being changed by A/D converter and close the blanking plate of shut-in hopper, make the output of paddy hopper have the seed of metering.
Described sensor uses light resistive sensor.
nullShown in Fig. 7，Described amplifying circuit includes one-level amplifying circuit and second amplifying circuit，One-level amplifying circuit includes resistance Rl、Resistance R2、Resistance R3、Resistance R4、Resistance R5 and resistance R6、Electric capacity Cl、Electric capacity C2、Electric capacity C3、Electric capacity C4、Electric capacity C5、Electric capacity C6、Electric capacity C7、Electric capacity C8、Electric capacity C9、Electric capacity C10 and electric capacity C11 and operational amplifier Ul and operational amplifier U2，3 feet of operational amplifier Ul meet input V2 through resistance Rl,The two ends of resistance Rl are respectively through electric capacity Cl and electric capacity C2 ground connection，Electric capacity C3 is connected between 8 feet and 5 feet of operational amplifier Ul,Electric capacity C4 is connected between 1 foot and 5 feet,7 feet connect+5V power supply,4 feet connect-5V power supply,2 feet and the resistance R2 the most in parallel and electric capacity C10 of 6 feet，3 feet of operational amplifier U2 meet input Vl through resistance R4，Resistance R4 two ends are respectively through electric capacity C6 and electric capacity C7 ground connection，Electric capacity C8 is connected between 8 feet and 5 feet of operational amplifier U2,Electric capacity C9 is connected between 1 foot and 5 feet,7 feet connect+5V power supply,4 feet connect-5V power supply,2 feet and the resistance R5 the most in parallel and electric capacity C11 of 6 feet，Resistance R3 is connected between 2 feet and 2 feet of operational amplifier U2 of operational amplifier Ul，6 feet of operational amplifier U2 are through resistance R6 and electric capacity C5 ground connection.
Second amplifying circuit operational amplifier U3, resistance R7 are to resistance R9 and electric capacity C12 to electric capacity C15,2 feet of operational amplifier U3 connect resistance R7, resistance R8 and electric capacity C12,6 feet of the other end concatenation operation amplifier Ul of resistance R7 and electric capacity C13, output pin 6 foot of the other end concatenation operation amplifier U3 of resistance R8 and the other end of electric capacity C13, another termination capacitor C5 of electric capacity C12 ground connection, 3 feet of operational amplifier U3 are through resistance R9 ground connection, electric capacity C14 is connected between 8 feet and 5 feet, electric capacity C15 is connected between 1 foot and 5 feet, 7 feet connect+5V power supply, and 4 feet connect-5V power supply.
Shown in Fig. 8, the switch 101 of described comparison circuit is connected between positive terminal voltage Vip of analog input signal and capacitor 1011, switch 102 is connected between the negative terminal voltage Vin of analog input signal and capacitor 1012, switch 103 is connected between the negative terminal voltage Vrn of reference voltage and capacitor 1013, and switchs 104 and be connected between positive terminal voltage Vrp of reference voltage and capacitor 1014.The most jointly link together at the terminal with the capacitor 1011 on these switches relative edge and capacitor 1013 and capacitor 12 and capacitor 14.
Switch 105 is connected between input and output side of reverser 1021, switch 106 is connected between input and output side of reverser 1022, switch 107 is connected between the input of reverser 1021 and the outfan of reverser 1022, and switchs between 108 outfans being connected to reverser 1021 and the input of reverser 1022.Further, switch 109 is connected to switch between 101 and the junction point of capacitor 1011 and switch 102 and the junction point of capacitor 1012, and switch 1010 is connected to switch between 103 and the junction point of capacitor 1013 and switch 104 and the junction point of capacitor 1014.
First, under input sample mode situation, switch 101,102,103,104,105,106,107 is connected with 108 and is switched 109 and 1010 disconnections.
Therefore, difference between positive terminal voltage Vip and the reverser 1021 logical threshold voltage VLT1 of analog input signal is stored in capacitor 1011, and the difference between the negative terminal voltage Vrn of reference voltage and reverser 1021 logical threshold voltage VLT1 is stored in capacitor 1013.Also have, difference between the negative terminal voltage Vin and reverser 1022 logical threshold voltage VLP2 of analog input signal is stored in capacitor 1012, and the difference between positive terminal voltage Vrp of reference voltage and the logical threshold voltage VLP2 of reverser 22 is stored in capacitor 1014.
When entering amplification mode, switch 109 is connected with 1010, and switchs 101, and 102,103,104,105,10 6,107 and 108 disconnect.
Therefore, capacitor 1011 and capacitor 1012 are connected in series, and the circuit of this series connection with as the capacitor 1013 and 1014 that is connected in series be connected in parallel.Thus, the electric charge of capacitor 1011,1012,1013 and 1014 storage is reallocated, and removes between input and the outfan that the difference between the analog input signal of common-mode voltage and the reference voltage removing common-mode voltage is formed at reverser 1021 and 1022.In this case, reverser 1021 amplifies the potential change from logical threshold voltage input, and reverser 1022 amplifies the potential change from logical threshold voltage input, and it is following to produce output voltage Vol and Vo2 respectively, when entering locking mode, switch 107,108,109 is connected with 1010, and switch 101,102,103
104,105 and 106 disconnect.Consequently, because reverser 1021 and 1022 is applied with positive feedback, so reverser 1021 and 1022 is operated in flip-flop states.In this case, increase reverser 1021 and and output amplitude asymmetric, it is to be produced by the difference between the differential voltage of positive terminal voltage Vip of analog input signal Yu negative terminal voltage Vin, and positive terminal voltage Vrp of reference voltage and the differential voltage of negative terminal voltage Vrn.
The common-mode voltage Vic of analog input signal can eliminate with the common-mode voltage Vrc of reference voltage, and only difference between analog input signal and reference voltage is formed between reverser 1021 and the input of 1022.Even if difference occurs between the common-mode voltage and the common-mode signal of reference voltage of analog input signal, amplify when amplification mode is only the difference between analog input signal and reference voltage, large and small it was determined that and do not affected by the common-mode voltage of analog input signal in locking mode and the common-mode voltage of reference voltage between analog input signal Vi and reference voltage Vr.
Described single-chip microcomputer uses EM78P156ELP-G；
Shown in Fig. 9, described A/D converter converts analog signals into the binary signal of 2.Transducer has the input 204 for receiving analogue signal Vin and for receiving the reference voltage input 206 of reference voltage V ref, and input 206 is connected to the resistor 208 of 4 arranged in series.Being provided with three comparators 2010 (being denoted as Sl, S2 and S3), comparator is powered by power supply V+, and their non-inverting input is connected to analogue signal Vin.The inverting input of each comparator 2010 is connected to the point between each pair of resistor 208.Therefore, 208 be used as each comparator 2010 potentiometer so that the inverting input of comparator receives the voltage of Vref, 2Vref and 3Vref respectively.The outfan (being denoted as Dl, D2 and D3) of comparator 2010 be arranged at by the comparator received output be converted to 2 binary signals (B0,
Bl) digital conversion block 2012.
Described D/A converter uses the product DAC7552 that Panasonic Electric Equipment Industrial Co., Ltd produces.Data-converting block 2012 uses DAC0832.
The present invention has carried out film side millet drill for sowing in lines at Shouyang dry farming class area and has processed (hereinafter referred to as film side machine sowing) and tradition single-row sowing-plough open country drilling (CK) planting type Piglet s colibacillosis, experimental field it is positioned at dry farming and water-saving irrigation experiment and demonstration base, Zong Ai town, Shouyang County, Shanxi Province (113 ° of 06 ' E, 37 ° of 58 ' N), it is located in warm temperate zone Semihumid area liable to drought, average annual temperature 7.4 DEG C, >=10 DEG C of accumulated temperature 3400 DEG C, annual rainfall 501.1mm, year evaporation capacity 1600～1800 mm, frost-free period about 130 d, year sunshine time 2858.3 h.Being experimental field cinnamon soil soil, soil parent material is Malan loess, subsoil water buried depth more than 50 meters, profile in dry highland of Loess Plateau ground.Test area anhydrous profit facility.Preceding crop is Semen sojae atricolor.Experimental cultivar is Shanxi paddy No. 29.Test is two process controlled trials, if 3 times are repeated, plot area is 10 × 10m2, the sowing time is on May 4th, 2012, and two process field management links are consistent.Biological yield character and the economic benefit situation of millet under two kinds of planting types are compared by harvest time.
The COMPARISON OF CHARACTERS table of millet different planting
By carrying out COMPARISON OF CHARACTERS discovery, machine sowing millet not only individual plants in film side is relatively big, and individual economy yield is higher, improves the one-tenth graininess of millet, Cheng Suixing.Machine sowing yield per plant in film side is than comparison raising 2.6
G, single-strain grain weight improves 2.5g.The individual effectively dry ability of film side machine sowing millet is relatively strong, and the raising for population yield is laid a good foundation.
The Yield compari@table of millet different planting
Using present invention cultivation extremely notable to millet quantitative effect, P > 0.01, the per mu yield of machine sowing reaches 392.9kg, and ratio comparison volume increase 46.6kg, rate of growth is 13.4%, obvious effect of increasing production.
The benefit comparison table of millet different planting
From the point of view of economic benefit, the present invention broadcasts planting type per mu yield value and reaches 942 yuan, increases income 111 yuan than comparison, nearly 80 yuan of more traditional open country drilling mu net added value after deduction mulch film input.
Experimental cultivation example 1:2011 used present invention sowing, millet variety Shanxi paddy No. 29 April 18；In region, Zong Ai village, Shouyang County, Shanxi Province, sown area 1 mu, plot is smooth bonding lift；Base fertilizer sowing amount nitric acid phosphorus 40kg, sowing quantity 263g；Wide-and narrow-row is sowed, and wide row is away from 40cm, and narrow row is away from 20cm；The accumulative sowing time be 1 hour 46 points；After emerging, taking five regions according to quincunx in plot, in each area test 5 meters row is long, millet emerges number, and the number of averagely emerging in the present embodiment 5 meters row is long is 119 strains, and real receipts yield is 354.4kg/ mu.
Experimental cultivation example 2:2011 used present invention sowing, millet variety Shanxi paddy No. 29 April 18；In region, Zong Ai village, Shouyang County, Shanxi Province, sown area 1 mu, plot is smooth bonding lift；Base fertilizer sowing amount nitric acid phosphorus 40kg, sowing quantity 258g；Wide-and narrow-row is sowed, film both sides millet line space 40cm, millet line space 20cm between film border；The accumulative sowing time be 1 hour 58 points；After emerging, taking five regions according to quincunx in plot, in each area test 5 meters row is long, millet emerges number, and the number of averagely emerging in the present embodiment 5 meters row is long is 132 strains, and real receipts yield is 392.9kg/ mu.
Claims (3)
1. exempt from a thinning film side millet drill for sowing in lines, by tractor, plough, road wheel, biofilm roller, hook soil dish, film-spreading roller, pressing wheel, broadcast paddy dish, paddy feeding pipe, earthing dish, pack roller, water tank, paddy hopper, fertiliser bucket form；
Plough, road wheel, biofilm roller, hook soil dish, film-spreading roller, pressing wheel, broadcast paddy dish, paddy feeding pipe, earthing dish, pack roller, water tank, paddy hopper and fertiliser bucket be all fixedly installed togather with frame, and frame is connected with tractor；Paddy hopper is provided with vibrator, is provided with blanking plate and grain counter controller at the rice outlet of paddy hopper, and blanking plate connects grain counter controller；
Paddy hopper connects paddy feeding pipe, and paddy feeding pipe inserts and broadcasts paddy dish；Broadcasting paddy dish to be made up of fixed disk and rotating disk, fixed disk is coaxial with rotating disk, and fixed disk is welded on axle sleeve, and rotating disk is connected with rotating shaft by bearing；
Fixed disk is provided with circular socket holes, and paddy feeding pipe inserts circular socket holes, the baffle plate of paddy feeding pipe mouth alignment rotating disk；
The periphery of rotating disk is equidistantly positioned some lower paddy mouths, and rotating disk is provided with grain guiding trough, and grain can be imported in lower paddy mouth by grain guiding trough；The top of lower paddy mouth is sharp end；It is characterized in that described grain counter controller includes light source, sensor, amplifying circuit, comparison circuit, single-chip microcomputer and A/D converter, D/A converter, sensor obtains grain shielding signals, the amplified circuit of sensor input signal is amplified to suitable amplitude, compare with the passage threshold voltage of D/A converter output, produce digit pulse and carried out accumulated counts by enumerator, data are read again by single-chip microcomputer, control switch by I/O controller after being changed by A/D converter and close the blanking plate of shut-in hopper, make the output of paddy hopper have the seed of metering.
nullThe most according to claim 1, one exempts from thinning film side millet drill for sowing in lines，It is characterized in that described amplifying circuit includes one-level amplifying circuit and second amplifying circuit，One-level amplifying circuit includes resistance Rl、Resistance R2、Resistance R3、Resistance R4、Resistance R5 and resistance R6、Electric capacity Cl、Electric capacity C2、Electric capacity C3、Electric capacity C4、Electric capacity C5、Electric capacity C6、Electric capacity C7、Electric capacity C8、Electric capacity C9、Electric capacity C10 and electric capacity C11 and operational amplifier Ul and operational amplifier U2，3 feet of operational amplifier Ul meet input V2 through resistance Rl,The two ends of resistance Rl are respectively through electric capacity Cl and electric capacity C2 ground connection，Electric capacity C3 is connected between 8 feet and 5 feet of operational amplifier Ul,Electric capacity C4 is connected between 1 foot and 5 feet,7 feet connect+5V power supply,4 feet connect-5V power supply,2 feet and the resistance R2 the most in parallel and electric capacity C10 of 6 feet，3 feet of operational amplifier U2 meet input Vl through resistance R4，Resistance R4 two ends are respectively through electric capacity C6 and electric capacity C7 ground connection，Electric capacity C8 is connected between 8 feet and 5 feet of operational amplifier U2,Electric capacity C9 is connected between 1 foot and 5 feet,7 feet connect+5V power supply,4 feet connect-5V power supply,2 feet and the resistance R5 the most in parallel and electric capacity C11 of 6 feet，Resistance R3 is connected between 2 feet and 2 feet of operational amplifier U2 of operational amplifier Ul，6 feet of operational amplifier U2 are through resistance R6 and electric capacity C5 ground connection；
Second amplifying circuit operational amplifier U3, resistance R7 to resistance R9 and electric capacity C12 to electric capacity C15, 2 feet of operational amplifier U3 connect resistance R7, resistance R8 and electric capacity C12, 6 feet of the other end concatenation operation amplifier Ul of resistance R7 and electric capacity C13, output pin 6 foot of the other end concatenation operation amplifier U3 of resistance R8 and the other end of electric capacity C13, another termination capacitor C5 of electric capacity C12 ground connection, 3 feet of operational amplifier U3 are through resistance R9 ground connection, electric capacity C14 is connected between 8 feet and 5 feet, electric capacity C15 is connected between 1 foot and 5 feet, 7 feet connect+5V power supply, 4 feet connect-5V power supply.
The most according to claim 1, one exempts from thinning film side millet drill for sowing in lines, it is characterized in that the first switch of described comparison circuit is connected between positive terminal voltage Vip of analog input signal and the first capacitor, second switch is connected between the negative terminal voltage Vin of analog input signal and the second capacitor, 3rd switch is connected between the negative terminal voltage Vrn of reference voltage and the 3rd capacitor, and the 4th switch is connected between positive terminal voltage Vrp of reference voltage and the 4th capacitor；The most jointly link together at the terminal with the first capacitor on these switches relative edge and the 3rd capacitor and the second capacitor and the 4th capacitor.
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| CN201410545206.2A CN104396388B (en) | 2014-10-16 | 2014-10-16 | One exempts from thinning film side millet drill for sowing in lines |
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| CN201410545206.2A CN104396388B (en) | 2014-10-16 | 2014-10-16 | One exempts from thinning film side millet drill for sowing in lines |
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| CN104396388B true CN104396388B (en) | 2016-08-24 |
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| CN105706590B (en) * | 2016-02-25 | 2018-02-09 | 朱景建 | The screening of automatically controlled rice precise hole-direct-sowing machine is with dividing storage system |
| CN108093767B (en) * | 2017-03-28 | 2020-06-16 | 武汉优视科技有限公司 | Ejection type seed sowing device and field operation machine |
| CN110663319B (en) * | 2019-11-21 | 2021-07-27 | 西南大学 | Seed manure mixes seeder |
| CN110809960B (en) * | 2019-11-25 | 2024-05-10 | 山西省农业科学院棉花研究所 | Dibble seeder |
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| JPH11196681A (en) * | 1998-01-09 | 1999-07-27 | Agri Techno Yazaki Kk | Mulching culture, mulching film used for culture and mulching culture apparatus in which fertilization and sowing are simultaneously carried out by using the same film |
| CN201571322U (en) * | 2009-12-19 | 2010-09-08 | 石河子大学 | Precision seeder |
| CN103081616B (en) * | 2012-11-14 | 2014-12-17 | 山西省农业科学院作物科学研究所 | Corn seeding machine |
| CN202907441U (en) * | 2012-11-15 | 2013-05-01 | 山西腾达种业有限公司 | Sowing mechanism of corn planter |
| CN103766050B (en) * | 2014-01-03 | 2016-04-20 | 山西省农业科学院玉米研究所 | A kind of corn Mulch Film Ridge paving side kind sower |
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