CN102210207B - Air cavity rolling-type precision hole sowing device - Google Patents
Air cavity rolling-type precision hole sowing device Download PDFInfo
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- CN102210207B CN102210207B CN 201110105353 CN201110105353A CN102210207B CN 102210207 B CN102210207 B CN 102210207B CN 201110105353 CN201110105353 CN 201110105353 CN 201110105353 A CN201110105353 A CN 201110105353A CN 102210207 B CN102210207 B CN 102210207B
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Abstract
The invention relates to a part on an agricultural sowing machine, in particular to an air cavity rolling-type precision hole sowing device which can be suitable for being used on a precision sowing machine. The air cavity rolling-type precision hole sowing device mainly comprises a hole sowing roller (1), a film pressing wheel (2) and a negative pressure seed taking device body (18) and is characterized in that the hole sowing roller (1), the film pressing wheel (2), the negative pressure seed taking device body (18) and a roller spindle (6) are connected through bearings; and the film pressing wheel (2) is connected with the negative pressure seed taking device body (18) through a gear set or a chain and is used for driving the negative pressure seed taking device body (18) to rotate. The invention has the advantages that the precision seed sowing is realized by adopting a combination mode of rotation of a negative pressure cavity and obturation of a sliding block, a negative pressure is more stable due to good sealing performance of the negative pressure cavity, the air leakage of the negative pressure cavity is reduced and the seed taking rate is increased, so that the cavity rate is reduced; the service life of a seed suction disk is prolonged and the power consumption is reduced; the sowing speed can be obviously increased; and compared with a traveling speed of 2-3 kilometers per hour of the tractor of the traditional film mulching and dibble seeding machine, due to the adoption of the air cavity rolling-type precision hole sowing device, the traveling speed of 4-6 kilometers per hour of the tractor can be realized.
Description
Technical field
The present invention relates to the parts on a kind of agricultural seeding machine, a kind of air cavity rolling-type precision hole sowing device particularly is applicable to using on the precision sower.
Technical background
At present, along with the development that deepens continuously of precision agriculture, also accelerated to the paces of Modernization of agricultural development as the precision drilling farm machinery of sowing link in the precision agriculture.Especially a kind of precise hole sowing facility, because the needs of expensive breeding and accurate agronomy, the new technology of these facility continued to bring out in recent years, new product constantly emerges, the application of precision drill in the precision drilling operation of China be more and more extensive on air-aspiration type precision planter and the air-sucking type film, can carry out precise hole sowing to all need such as corn, sunflower, seed melon, watermelon, cotton, beet, capsicums.The core technology of these class facility all concentrates on the air-suction type precision seed extractor, and the Strength and stability of its negative pressure will directly have influence on service behaviour and the smart seed-fetching quality of precision weighing seed implement.Usually the negative pressure air-suction type seed metering device in the bunch planting cylinder (or claiming seeder) comprises that seeds sucker and negative pressure cavity form, during use, by coupling spindle so that seeds sucker is fixed on the end face of negative pressure cavity, seeds sucker is a disk, prolong the uniform equidistant suction hole of circumferencial direction of disk border, during work, bleed by the air intake duct that connects with negative pressure cavity, seeds sucker drives by central shaft simultaneously, end face rotation at negative pressure cavity, seeds sucker rotation purpose will be finished two tasks, and the one, seed is drawn onto suction hole (or two); The 2nd,, a seed (processing through seed scraping device) that is drawn onto is separated with seed-taking device under voltage discharging area (bottom of negative pressure cavity arranges fan-shaped voltage discharging area) Action of Gravity Field.Seeds sucker cooperates because be slidingly matched (the two relatively rotates) with negative pressure cavity, and its sealed precision depends on the machining accuracy of seeds sucker and negative pressure cavity counterface, but guarantees that in relative motion sealing is impossible.Actual situation is, there is inevitable gap in the junction of seeds sucker and negative pressure cavity, causes gas leakage, and the result of gas leakage can cause negative pressure unstable, and then the situation less than seed can may occur inhaling, so that planting rates decline does not reach 100% planting rates.Chinese patent literature discloses a kind of air-sucking seeding on June 17th, 1998, publication number is CN2283960, this device is by cylinder, drum shaft and pressing wheel consist of, its pressing wheel and cylinder are connected as a single entity, cylinder is provided with seed chamber in the chamber, seeds sucker and vacuum chamber, seeds sucker is connected with cylinder, seeds sucker, cylinder and pressing wheel are with being contained on the drum shaft, the seeds sucker periphery is provided with equidistant suction hole, cylinder inner circle periphery is provided with seed reception bucket, the duckbilled indenting tool corresponding with seed reception bucket is housed on the cylinder circumferential periphery, mulch film is housed below cylinder and the pressing wheel.The possible defective of this device is, seed is when being inhaled by negative pressure cavity, because structural unavoidable cause (such as part gas leakage) may cause inhaling less than seed, can cause leaking and plant, so the inventor is through experimental study, expect not allow seeds sucker and negative pressure cavity relative motion, but allow negative pressure inhale kind of a device integral-rotation, so that seeds sucker and negative pressure cavity are combined closely, solve the gas leakage problem, but relate to following technical barrier be, because negative pressure cavity needs continual bleeding when work, must need the control of pipeline or circuit, if negative pressure is inhaled kind of a device unitary rotation, structurally easily interfere with each other between pipeline or the circuit.
Summary of the invention
The objective of the invention is according to above-mentioned the deficiencies in the prior art part, provide a kind of air-suction type precision seed extractor on the precise hole sowing device and speed change system of coupling of being applicable to, so that the planting rates of described device almost reaches 100%.
The object of the present invention is achieved like this:
The present invention mainly comprises bunch planting cylinder 1, pressing wheel 2, negative pressure seed-taking device body 18; Bunch planting cylinder 1, pressing wheel 2, connect by bearing between negative pressure seed-taking device body 18 and the drum spindle 6, pressing wheel 2 passes through gear train or/and sprocket wheel, chain connects with negative pressure seed-taking device body 18, drive 18 rotations of negative pressure seed-taking device body, described pressing wheel 2 connects with negative pressure seed-taking device body 18 by gear train, by driving successively the second gear 12 that is fixed on gear drive or the sprocket shaft bracing frame 10 by being fixed on the first fixing on the stiffener 3 on the pressing wheel 2 gear 4, tooth on the 3rd gear 14 and the vacuum cavity or gear 15, wherein gear drive shaft supporting frame 10 is fixedly connected with drum spindle 6; Or/and sprocket wheel, chain connect with negative pressure seed-taking device body 18, the gear or the chain gear transmission shaft supporting frame 10 that wherein are fixedly connected with drum spindle 6 are single armed shape or multi-arm shape to described pressing wheel 2 by gear train; Seeds sucker 21 in the described negative pressure seed-taking device body 18 is fixedly connected in the end of negative pressure seed-taking device body 18, so that do not have relative motion between seeds sucker 21 and the negative pressure seed-taking device body 18, at the negative pressure cavity 19 interior settings piece of holding one's breath, the piece of holding one's breath is fixedly connected by hold one's breath piece support and drum spindle 6; The tooth that arranges on the described negative pressure seed-taking device body 18 or installation gear 15 are arranged on the vacuum cavity excircle; Described negative pressure seed-taking device body 18 is stepped, and the excircle at stair-stepping boss place arranges tooth or gear 15 is installed; The piece 27-1 that holds one's breath of described negative pressure seed-taking device body 18 interior settings is shaped as fan-shaped or rectangle, and the piece of holding one's breath slides or rolls with seeds sucker 21 and cooperates, and the area of the piece of holding one's breath and the contact area of seeds sucker cover a suction hole 20 at least; The piece of holding one's breath (27-2) of described negative pressure seed-taking device body 18 interior settings is shaped as the roller shape.
Advantage of the present invention is: adopt vacuum cavity to rotate the form realization essence amount seeding of holding one's breath and combining with slide block, the negative pressure cavity good leak tightness makes negative pressure more stable, has reduced the air leakage of vacuum cavity, has improved kind of the rate of getting, and then reduces hole rate; Increase the service life of seeds sucker, reduced power consumption; Negative-pressure sealing is tight reliably, serviceability is stable, the quality and stability of smart seed-fetching have further been improved, can obviously improve speed of drilling, the tractor gait of march of existing plastic film mulch planter is 2-3 kilometer/hour, uses apparatus of the present invention tractor gait of march can realize 4-6 kilometer/hour.
Description of drawings
Fig. 1 is a kind of structure cutaway view of the present invention;
The another kind of structure cutaway view of the present invention of Fig. 2;
Negative pressure seed-taking device cutaway view in the accompanying drawing 1 or 2 of Fig. 3, the B-B cutaway view of accompanying drawing 4;
Fig. 4 is Fig. 3 A-A cutaway view;
Fig. 5 is accompanying drawing 1 middle gear drive axle support structural representation;
Fig. 6 is accompanying drawing 1 another structure of middle gear drive axle support (up and down two arm fixed gear shafts) schematic diagram;
Fig. 7 is accompanying drawing 1 another structure of middle gear drive axle support (up and down three arm fixed gear shafts) schematic diagram;
Fig. 8 is a kind of obturator partial enlarged drawing (roller) among Fig. 3;
Fig. 9 is a kind of obturator partial enlarged drawing (slidding-block type) among Fig. 2.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Such as accompanying drawing 1-9 signal, the label among the figure represents respectively: 1-bunch planting cylinder, the 2-pressing wheel, 3 stiffeners, 4-the first gear, the 5-hitch frame, 6-drum spindle (hollow shaft), the 7-negative pressure channel, the 8-suction hole, 9-stiffener bearing, 10-gear drive or sprocket shaft bracing frame, 11 gearing shafts, 12-the second gear, 13-gear drive shaft supporting frame upper end, 14-the 3rd gear, tooth on the 15-vacuum cavity or gear, the 16-inoculating seed transfusion box, 17-kind case, 18-negative pressure seed-taking device body, the 19-negative pressure cavity, the 20-suction hole, the 21-seeds sucker, the 22-bearing sealed ring, 23-nut 24-negative pressure hole, 25-deposits kind of a chamber, 26-enters kind of a hole, 27-1 hold one's breath piece-, the 27-2 – piece of holding one's breath that rolls, 28-seeds sucker sealing ring, the 29-Compress Spring, the 30-1-piece support of holding one's breath, the 30-2 – piece support of holding one's breath that rolls, 31-duck mouth.
Embodiment
Show such as accompanying drawing 1,2,3,4,5,6,7,8,9, the present invention mainly comprises bunch planting cylinder 1, pressing wheel 2, negative pressure seed-taking device body 18, connect by bearing between bunch planting cylinder 1, pressing wheel 2, negative pressure seed-taking device body 18 and the drum spindle 6, so that bunch planting cylinder 1, pressing wheel 2, negative pressure seed-taking device body 18 can be in drum spindle 6 rotations; Pressing wheel 2 connects with negative pressure seed-taking device body 18 by gear train or chain, drive 18 rotations of negative pressure seed-taking device body, why the purpose of design is that can to adjust as required the rotating speed of negative pressure seed-taking device the most reasonable like this, obviously, although the present embodiment does not design separately sprocket wheel, technical staff of the same trade in the present invention chain gear transmission and gear drive should be the technical scheme that is equal to; Described pressing wheel 2 connects with negative pressure seed-taking device body 18 by gear train, by driving successively the second gear 12 that is fixed on gear drive or the sprocket shaft bracing frame 10 by being fixed on the first fixing on the stiffener 3 on the pressing wheel 2 gear 4, tooth on the 3rd gear 14 and the vacuum cavity or gear 15, wherein gear drive shaft supporting frame 10 is socketed on the drum spindle 6, the two key cooperates, if obviously such as accompanying drawing 5,6,7 have shown single armed, both arms, the support of three arm configurations, if adopt such as Fig. 6, both arms shown in 7 and three arm configurations need to arrange gear shaft and corresponding gear in gear drive shaft supporting frame end 13 so accordingly, particularly adopt and be similar to leg-of-mutton three arms or multi-arm supporting structure (accompanying drawing 7 shows), can increase the stability of negative pressure seed-taking device body 18 transmissions, in view of this technical scheme is easily understanding of technical staff institute of the same trade, therefore detailed both arms, the assembly drawing of three arms or multi-arm supporting structure is not showed in the accompanying drawings, is not repeated them here; Described pressing wheel 2 connects with negative pressure seed-taking device body 18 by gear train or chain, and the gear or the chain gear transmission shaft supporting frame 10 that wherein are socketed on the drum spindle 6 are single armed shape or multi-arm shape; Seeds sucker 21 in the described negative pressure seed-taking device body 18 is fixedly connected in the end of negative pressure seed-taking device body 18, (traditional seed-taking device is that negative pressure seed-taking device body 18 is motionless not have relative motion so that (rotate synchronously) between seeds sucker 21 and the negative pressure seed-taking device body 18, the seeds sucker rotation), shown in Figure 2 at the negative pressure cavity 19 interior settings piece 27-1(that holds one's breath) or the roller shape piece 27-2(that holds one's breath shown in Figure 1), the piece 27-1 that holds one's breath is that 30-1(is shown in Figure 2 by the piece support of holding one's breath that is fixedly connected with drum spindle 6) or 30-2(shown in Figure 1) connect, piece and seeds sucker 21 slip (Fig. 2 hold one's breath, shown in 9) or the cooperation (Fig. 1 that rolls, shown in 8), the contact area of hold one's breath piece and seeds sucker covers a suction hole 20 at least; The tooth that arranges on the described negative pressure seed-taking device body 18 or installation gear 15 are arranged on (shown in Figure 1) on the vacuum cavity excircle.Two kinds of methods are arranged usually, the one,, when making the negative pressure air cavity with the tooth of gear directly and negative pressure seed-taking device body 18 be made as one (such as injection moulding), or make in addition on the gear socket negative pressure taking kind device body 18, the function of this tooth or gear is under external force, drives negative pressure seed-taking device body 18 and seeds sucker and rotates simultaneously; Described negative pressure seed-taking device body 18 is stepped (shown in Figure 2), and the excircle at stair-stepping boss place arranges tooth or gear 15 is installed; The described negative pressure seed-taking device body 18 interior settings piece 27-1 that holds one's breath that arranges in the piece cavity that holds one's breath is shaped as fan-shaped or rectangle, holding one's breath is slidingly matched between piece support and the slide block, shown in Compress Spring 29(accompanying drawing 2) the effect lower slider piece of holding one's breath can fit tightly on seeds sucker under pressure.Obviously also can adopt other not given shapes, the purpose of this shape is to make the simple contact area that can satisfy hold one's breath piece and seeds sucker simultaneously for technique to cover at least a suction hole 20(suction hole be inconsistent according to the planting requirement pitch of holes of Different Crop); The hold one's breath piece 27-2 that holds one's breath that arranges in the piece cavity of described negative pressure seed-taking device body 18 interior settings is shaped as and is the roller shape, the roller shape piece of holding one's breath can adopt elastomeric material to make, such as rubber, piece fits tightly on seeds sucker so that the roller shape is held one's breath under the pressure-acting of elastomeric material like this, the hold one's breath great advantage of piece of roller shape is can greatly reduce the frictional force of holding one's breath between piece and the seeds sucker in the course of the work.Drum spindle 6 parts at negative pressure seed-taking device body 18 centers are hollow shaft, this hollow shaft has the channeling that produces negative inspiratory pressure and also has the function that is fixedly installed the piece support of holding one's breath outward, when being the air-suction type seed metering device rotation, drum spindle 6 does not rotate, the piece of holding one's breath that is fixedly connected with it does not rotate yet, seed is inhaled on the suction hole 20 on the seeds sucker 21, when suction hole 20 held one's breath piece when holding one's breath seed under Action of Gravity Field, fall to inoculating seed transfusion box 16, duck mouth 31; In negative pressure seed-taking device body 18 and seeds sucker 21 connection places seeds sucker sealing ring 28 is set, the sealing circle is necessary in some cases, be more prone to like this sealing, why interchangeable seeds sucker (live and connect) is set, and directly and vacuum cavity be designed to one, the agriculture requirement that is based on different crops is inconsistent, and size and the spacing of suction hole change, and can design according to agriculture requirement the seeds sucker of multiple aperture, pitch-row.
1-9 shows such as accompanying drawing, the present invention is when work, tractor is by the drum spindle 6 of hitch frame 5 pulling hollow shapes, driving the bunch planting cylinder 1 with the duck mouth, the pressing wheel 2 that contact with ground rolls and moves ahead, bled by suction hole 8 by negative-pressure air fan or negative pressure pump simultaneously, by negative pressure channel 7, the negative pressure hole 24 that connects with vacuum cavity, so that the negative pressure cavity in the negative pressure seed-taking device body 18 continues to produce negative pressure.Rotate (with respect to the rotating speed of bunch planting cylinder) in order to ensure inhaling the seeds sucker deceleration that accurately often needs of planting, therefore apparatus of the present invention arrange speed change system and drive 18 rotations of negative pressure seed-taking device body, wherein seeds sucker and negative pressure seed-taking device body 18 are fixedly connected, and the purpose of doing like this is to reduce as far as possible the negative pressure loss.At first; seed enters by seed inlet 26 from kind of case 17 and deposits kind of chamber 25; negative pressure seed-taking device body 18 drives seeds sucker 21 and is depositing the 25 interior rotations of kind of chamber; seed is held by equally distributed suction hole 20 on the seeds sucker 21; hold one's breath (piece of holding one's breath is fixedly connected by support and drum spindle) during piece in rotating to negative pressure seed-taking device body 18; the disappearance of negative pressure, one or two (according to agriculture requirement) seeds are imported into inoculating seed transfusion box 16 by gravity, further arrive duck mouth 31.In addition, at the bearing chamber of negative pressure cavity 19 interior design one spills, place bearing sealed ring 22 and bearing in the bearing chamber, seeds sucker 21 can by nut 23 with placing bearing sealed ring 22 and bearing locking in the bearing chamber, prevent gas leakage; Stiffener 3 can be designed to boss-shaped, and bearing 9 is set, and such design is so that structure is more stable.
Although below with reference to accompanying drawing design and embodiment according to the object of the invention have been done to elaborate; but those of ordinary skills can recognize; under the precondition that does not break away from the claim limited range; still can make various improvement and conversion to the utility model, and this improvement and conversion still should belong to protection scope of the present invention.
Claims (7)
1. air cavity rolling-type precision hole sowing device, mainly comprise bunch planting cylinder (1), pressing wheel (2), negative pressure seed-taking device body (18), it is characterized in that, bunch planting cylinder (1), pressing wheel (2), connect by bearing between negative pressure seed-taking device body (18) and the drum spindle (6), pressing wheel (2) connects with negative pressure seed-taking device body (18) by gear train, to drive successively the second gear (12) that is fixed on the gear drive shaft supporting frame (10) by upper fixing the first gear (4) of stiffener (3) that is fixed on the pressing wheel (2), tooth on the 3rd gear (14) and the vacuum cavity or gear (15), wherein gear drive shaft supporting frame (10) is fixedly connected with drum spindle (6).
2. air cavity rolling-type precision hole sowing device according to claim 1, it is characterized in that, described pressing wheel (2) connects with negative pressure seed-taking device body (18) by gear train, and the gear drive shaft supporting frame (10) that wherein is fixedly connected with drum spindle (6) is single armed shape or multi-arm shape.
3. air cavity rolling-type precision hole sowing device according to claim 1, it is characterized in that, seeds sucker (21) in the described negative pressure seed-taking device body (18) is fixedly connected in the end of negative pressure seed-taking device body (18), the piece of holding one's breath is set in negative pressure cavity (19), the piece of holding one's breath is fixedly connected by hold one's breath piece support and drum spindle (6), and the piece of holding one's breath slides or rolls with seeds sucker (21) and cooperates.
4. air cavity rolling-type precision hole sowing device according to claim 1 is characterized in that, the upper tooth that arranges of described negative pressure seed-taking device body (18) or installation gear (15) are arranged on the vacuum cavity excircle.
5. air cavity rolling-type precision hole sowing device according to claim 1, it is characterized in that, described negative pressure seed-taking device body (18) is stepped, and the excircle at stair-stepping boss place arranges tooth or gear (15) is installed, and the bearing that cooperates with drum spindle (6) is set in the boss.
6. air cavity rolling-type precision hole sowing device according to claim 4, it is characterized in that, the piece of holding one's breath (27-1) that arranges in the described negative pressure seed-taking device body (18) is shaped as fan-shaped or rectangle, and the area of the piece of holding one's breath and the contact area of seeds sucker cover a suction hole (20) at least.
7. air cavity rolling-type precision hole sowing device according to claim 4 is characterized in that, the piece of holding one's breath (27-2) that arranges in the described negative pressure seed-taking device body (18) is shaped as the roller shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110105353 CN102210207B (en) | 2011-04-26 | 2011-04-26 | Air cavity rolling-type precision hole sowing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110105353 CN102210207B (en) | 2011-04-26 | 2011-04-26 | Air cavity rolling-type precision hole sowing device |
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| Publication Number | Publication Date |
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| CN102210207A CN102210207A (en) | 2011-10-12 |
| CN102210207B true CN102210207B (en) | 2013-09-18 |
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| CN 201110105353 Active CN102210207B (en) | 2011-04-26 | 2011-04-26 | Air cavity rolling-type precision hole sowing device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102612897B (en) * | 2012-04-10 | 2013-09-25 | 内蒙古农业大学机械厂 | Slip type precise filming and seeding roller and seeding machine |
| CN102742403A (en) * | 2012-08-10 | 2012-10-24 | 陈恒 | Air cavity rolling type precision hole sowing device |
| CN111887070A (en) * | 2020-07-10 | 2020-11-06 | 华南农业大学 | Automatic plug seedling intelligent seeding production line for small-particle-size seeds |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4019651A (en) * | 1975-09-19 | 1977-04-26 | Floyd R. Bridger, Jr. | Seed planter with a suction pickup mechanism |
| CN201069906Y (en) * | 2007-08-22 | 2008-06-11 | 陈恒 | Air suction type film accurate hole sowing device |
| CN201355916Y (en) * | 2009-01-21 | 2009-12-09 | 陈恒 | Pneumatic precise bunch planting device |
| CN201594997U (en) * | 2010-02-27 | 2010-10-06 | 陈恒 | Pneumatic precision seed feeding hill planter |
| CN202059746U (en) * | 2011-04-26 | 2011-12-07 | 徐艺 | Rolling air cavity type hole seeding device |
-
2011
- 2011-04-26 CN CN 201110105353 patent/CN102210207B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4019651A (en) * | 1975-09-19 | 1977-04-26 | Floyd R. Bridger, Jr. | Seed planter with a suction pickup mechanism |
| CN201069906Y (en) * | 2007-08-22 | 2008-06-11 | 陈恒 | Air suction type film accurate hole sowing device |
| CN201355916Y (en) * | 2009-01-21 | 2009-12-09 | 陈恒 | Pneumatic precise bunch planting device |
| CN201594997U (en) * | 2010-02-27 | 2010-10-06 | 陈恒 | Pneumatic precision seed feeding hill planter |
| CN202059746U (en) * | 2011-04-26 | 2011-12-07 | 徐艺 | Rolling air cavity type hole seeding device |
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Effective date of registration: 20170310 Address after: 015299 the Inner Mongolia Autonomous Region City, Bayannaoer Province town of Ba Zhen Road, Dengkou Patentee after: Bayannaoer Futian Machinery Co., Ltd. Address before: 200136 Shanghai, Pudong New Area Luo Road, Lane 589, room 1, No. 802 Patentee before: Xu Yi |
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Effective date of registration: 20180226 Address after: 015000 Bayannaoer city the Inner Mongolia Autonomous Region Linhe district west of the original trade union pioneer Library Patentee after: Chen Ying Address before: 015299 the Inner Mongolia Autonomous Region City, Bayannaoer Province town of Ba Zhen Road, Dengkou Patentee before: Bayannaoer Futian Machinery Co., Ltd. |