CN102119599A - Synchronous air-aspiration type precise measuring device - Google Patents
Synchronous air-aspiration type precise measuring device Download PDFInfo
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- CN102119599A CN102119599A CN 201110083843 CN201110083843A CN102119599A CN 102119599 A CN102119599 A CN 102119599A CN 201110083843 CN201110083843 CN 201110083843 CN 201110083843 A CN201110083843 A CN 201110083843A CN 102119599 A CN102119599 A CN 102119599A
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- vacuum cavity
- negative pressure
- seed
- breath
- pressure cavity
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Abstract
The invention relates to a part on an agricultural seeder, in particular to an air-aspiration type precise measuring seed taking device. The device can be suitable for a precise measuring seeder and mainly comprises a negative pressure cavity (1), a seed sucking disk (3) and an installation shaft (4), wherein the seed sucking disk (3) is fixedly connected to the end part of the negative pressure cavity (1); the installation shaft (4) is connected with the negative pressure cavity (1) by a bearing (6); an air sealing block is arranged in the negative pressure cavity (1); the air sealing block and the seed sucking disk are in slide or rolling fit; the air sealing block is fixedly connected with the installation shaft (4); and when in use, the seed sucking disk (3) can synchronously rotate with a hole sowing roller. The invention has the advantages that the integral structure has a scientific design and is stable in transmission, and the precise measurement sowing is realized in a way of combining the rotation of a negative pressure cavity and the air seal of the sliding block; the negative pressure cavity has high seal performance so that the negative pressure is more stable, improves the seed taking rate and reduces the hole rate; the service life of the seed sucking disk is prolonged, and the power consumption is reduced; the synchronous rotation of the seed taking device and the sowing roller on the premise of meeting high sowing rate can be realized; and a necessary speed change system is omitted under the certain condition, therefore, the cost is greatly reduced.
Description
Technical field
The present invention relates to the parts on a kind of agricultural seeding machine, particularly a kind of driven sucking precise is measured kind of a device, applicable to using on the precision sower.
Technical background
Common air-sucking type seed-taking device (or claiming seeder) comprises seeds sucker and negative pressure cavity composition, during use, make seeds sucker be fixed on the end face of negative pressure cavity by coupling spindle, seeds sucker is a disk, prolongs 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, in the end face rotation of 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 (after seed scraping device is handled) that is drawn onto is separated with seed-taking device under action of gravity at voltage discharging area (bottom of negative pressure cavity is provided with fan-shaped voltage discharging area).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 the negative pressure instability, and then the situation less than seed can occur inhaling, makes planting rates decline.Such as: Chinese patent literature discloses a kind of air-sucking type seeding and film covering apparatus on June 17th, 1998, publication number is CN2283960, this device is by cylinder, drum shaft and press mold wheel constitute, its press mold wheel is connected as a single entity with cylinder, cylinder is provided with seed chamber in the chamber, seeds sucker and vacuum chamber, seeds sucker is connected with cylinder, seeds sucker, cylinder and press mold wheel are with being contained on the drum shaft, the seeds sucker periphery is provided with equidistant suction hole, cylinder inner periphery limit is provided with seed reception bucket, be equipped with on the cylinder circumferential periphery and the corresponding duckbilled indenting tool of seed reception bucket, mulch film be housed below cylinder and the press mold wheel.Air-sucking type precision weighing seed implement wherein, mainly be by vacuum cavity, seeds sucker is formed, seeds sucker is fixed on the end face of vacuum cavity, when work, seeds sucker and vacuum cavity relatively rotate, be that negative pressure cavity is fixed on the support concretely, the seeds sucker rotation, such structure is difficult to guarantee the negative regulation of vacuum cavity, reason is when seeds sucker rotates, there is inevitable gap in the junction of seeds sucker and negative pressure cavity, causes gas leakage, and the size of air leakage is the great key element that guarantees the product negative regulation, therefore, technical staff of the same trade can control gas leakage by the improvement of material and the design expectation of fit system always, but because the structure problem of design itself does not obtain substantial solution.The inventor when promptly working, allows the air-sucking type seed-taking device directly rotate by changing the structure of seed-taking device, does not allow produce relative motion between seeds sucker and the vacuum cavity, simultaneously other structure is made corresponding improvement and finishes the present invention.Product of the present invention makes planting rates almost reach 100%.
Summary of the invention
The purpose of this invention is to provide a kind of air-sucking type precision weighing seed implement that is applicable on the precise hole sowing device, the suction kind rate of this seed-taking device almost reaches 100%.
The object of the present invention is achieved like this:
This a kind of air-sucking type seed-taking device, mainly comprise vacuum cavity 1, seeds sucker 3 and installation shaft 4 compositions, seeds sucker 3 is fixedly connected in the end of vacuum cavity 1, connect by bearing 6 between installation shaft 4 and the vacuum cavity 1, the piece of holding one's breath is set in vacuum cavity 1, the piece of holding one's breath slides or rolls with seeds sucker and cooperates, and hold one's breath piece and installation shaft 4 are fixedly connected; The piece 9 of holding one's breath that is provided with in vacuum cavity is shaped as fan-shaped or rectangle or ellipse or dumb-bell shape; What be provided with in vacuum cavity holds one's breath block-shaped 13 for the roller shape; Vacuum cavity 1 is hollow shaft or local hollow shaft 11 in the installation shaft 4 at vacuum cavity center, makes gas to be drawn out of in vacuum cavity 1; Vacuum cavity 1 one sides are the boss shape, and bearing and sealing ring are installed in the boss of vacuum cavity 1, and opposite side is a recess, and bearing 6 and sealing ring 7 are installed in the recess of vacuum cavity 1; The piece 9 of holding one's breath that is provided with in vacuum cavity 1 is shaped as fan-shaped or rectangle or ellipse; In vacuum cavity 1 be provided with hold one's breath and block-shaped 13 be the roller shape; In vacuum cavity 1 and seeds sucker 3 connection places sealing ring 8 is set.
Advantage of the present invention is: adopt vacuum cavity to rotate the smart amount of the form realization seeding of holding one's breath and combining with slide block; The negative pressure cavity good leak tightness makes negative pressure more stable, has improved kind of the rate of getting, and reduces hole rate; Increase the service life of seeds sucker, reduced power consumption; Negative-pressure sealing is tight reliably, serviceability is stable, further improved the smart quality and stability of planting of measuring, can be implemented under the prerequisite that satisfies high planting rates, seed-taking device and sowing rotary drum rotate synchronously, save necessary speed change system under certain condition, make cost reduce significantly.
Description of drawings
Fig. 1 is a kind of cutaway view of the present invention, the F-F cutaway view of accompanying drawing 2;
Fig. 2 is Fig. 1 E-E cutaway view;
Fig. 3 is the partial enlarged drawing (obturating system) at I place among Fig. 1;
Fig. 4 is the another kind of obturating system structure in an I place cutaway view among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
As shown in drawings, the label among the figure is represented respectively: 1--vacuum cavity, 2-suction hole, 3-seeds sucker, 4-installation shaft, 5-negative pressure hole, 6-bearing, 7-bearing sealed ring, 8-seeds sucker sealing ring, 9-slip piece, 10-spring, 11-hollow shaft, 13-rolling piece, 15--piece support, the 16-piece support (another kind) of holding one's breath of holding one's breath of holding one's breath of holding one's breath.Accompanying drawing 3 and accompanying drawing 4 are respectively two kinds of block structures of holding one's breath in the accompanying drawing 1, and wherein, the piece 9 of holding one's breath is the piece of holding one's breath that slides, and the piece 13 of holding one's breath is the piece of holding one's breath that rolls.
Show as accompanying drawing 1,2,4.Present embodiment mainly comprises vacuum cavity 1, seeds sucker 3 and installation shaft 4 compositions, and seeds sucker 3 is fixedly connected in the end of vacuum cavity 1, and negative pressure air cavity 1 is accepted external force (such as cylinder) by sleeve structure and directly driven vacuum cavity 1 and seeds sucker rotation; The part of installation shaft 4 is a hollow shaft 11, with between the vacuum cavity 1 by two bearings in bearing 6(both sides) be connected and be provided with two sealing rings in bearing sealed ring 7(both sides), piece 13(accompanying drawing 4 signals of holding one's breath that being provided with in vacuum cavity 1 rolls), rolling is held one's breath, and piece 13 is fixedly connected (the two does not have relative motion) with installation shaft 4 by the piece support 15 of holding one's breath and cooperate (piece of holding one's breath when vacuum cavity 1 and seeds sucker 3 rotate is motionless) with seeds sucker 3 rollings, its section configuration is roller shape (this piece of holding one's breath is with respect to the sliding shoe power of can reducing friction), the rolling piece 13 the most handy elastomeric materials of holding one's breath, when cooperating with seeds sucker like this, be easy to generate a pressure, make easier being fitted on the suction hole 2, roll and hold one's breath contact area on piece 13 seeds suckers to cover one or two suction hole 2(suction hole be inconsistent according to the planting requirement pitch of holes of Different Crop); Installation shaft 4 parts at vacuum cavity 1 center are hollow shaft 11, hollow shaft 11 is provided with the negative pressure hole 5 that communicates with vacuum cavity 1, hollow shaft 11 also has the function that fixedly installs the piece 13 of holding one's breath except having the channeling that produces negative inspiratory pressure, when being the rotation of air-sucking type seed-taking device, installation shaft 4 is not rotated, the piece support 15 of holding one's breath that is fixedly connected with it does not rotate yet, and seed is inhaled on the suction hole 2 of seeds sucker 3, when suction hole held one's breath piece 13 when holding one's breath seed under action of gravity, fall; In vacuum cavity 1 and seeds sucker 3 connection places sealing ring 8 is set, the sealing circle is necessary in some cases, be more prone to sealing like this, 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 the size and the spacing of suction hole change.
Show as accompanying drawing 1,2,3, with the difference of embodiment 1 be: the slip that is provided with in the vacuum cavity piece 9 of holding one's breath is shaped as fan-shaped or rectangle or ellipse; Material can be selected plastics, piece support 16 and the installation shaft 4 of holding one's breath be fixedly connected (making the two not have relative motion), holding one's breath is slidingly matched between the coupling bar of the pilot hole of piece support 16 and the piece 9 of holding one's breath, and can be fitted on the seeds sucker under pressure at the effect lower slider of spring 10 piece 9 of holding one's breath.
Though below design and example according to the object of the invention have been done to elaborate with reference to accompanying drawing; 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 present invention, and this improvement and conversion still should belong to protection scope of the present invention.
Claims (7)
1. a synchronous driven sucking precise is measured device, mainly comprise vacuum cavity (1), seeds sucker (3) and installation shaft (4) composition, it is characterized in that, seeds sucker (3) is fixedly connected in the end of vacuum cavity (1), connect by bearing (6) between installation shaft (4) and the vacuum cavity (1), the piece of holding one's breath is set in vacuum cavity (1), and the piece of holding one's breath slides or rolls with seeds sucker and cooperates, and piece and the installation shaft of holding one's breath (4) is fixedly connected.
2. synchronous driven sucking precise according to claim 1 is measured device, it is characterized in that, the piece of holding one's breath (9) that is provided with in vacuum cavity is shaped as fan-shaped or rectangle or ellipse.
3. synchronous driven sucking precise according to claim 1 is measured device, it is characterized in that, holding one's breath of being provided with in vacuum cavity block-shaped (13) is the roller shape.
4. synchronous driven sucking precise according to claim 1 is measured device, it is characterized in that, vacuum cavity (1) is hollow shaft or local hollow shaft in the installation shaft (4) at vacuum cavity center, makes gas to be drawn out of in vacuum cavity (1).
5. synchronous driven sucking precise according to claim 1 is measured device, it is characterized in that, vacuum cavity (1) one side is the boss shape, and bearing and sealing ring are installed in the boss of vacuum cavity (1).
6. synchronous driven sucking precise according to claim 1 is measured device, it is characterized in that, vacuum cavity (1) opposite side is a recess, and bearing (6) and sealing ring (7) are installed in the recess of vacuum cavity (1).
7. synchronous driven sucking precise according to claim 1 is measured device, it is characterized in that, in vacuum cavity (1) and seeds sucker (3) connection place sealing ring (8) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110083843 CN102119599A (en) | 2011-04-02 | 2011-04-02 | Synchronous air-aspiration type precise measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110083843 CN102119599A (en) | 2011-04-02 | 2011-04-02 | Synchronous air-aspiration type precise measuring device |
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| Publication Number | Publication Date |
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| CN102119599A true CN102119599A (en) | 2011-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110083843 Pending CN102119599A (en) | 2011-04-02 | 2011-04-02 | Synchronous air-aspiration type precise measuring device |
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| CN (1) | CN102119599A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771233A (en) * | 2012-07-31 | 2012-11-14 | 河北省农业机械化研究所有限公司 | Air-aspiration type disseminator with circumferential holes |
| CN110199627A (en) * | 2019-07-01 | 2019-09-06 | 吉林大学 | A kind of air-suction seeding unit equipped with part flow arrangement |
| CN112205129A (en) * | 2020-09-18 | 2021-01-12 | 哈尔滨华惠农业机械制造有限公司 | Novel air-suction type electric seed sowing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050204972A1 (en) * | 2003-12-29 | 2005-09-22 | Kinze Manufacturing, Inc. (Iowa Corporation) | Air seed meter |
| CN2824535Y (en) * | 2005-05-31 | 2006-10-11 | 陈立凡 | Adjustable air-suction precision seed-sowing disk |
| US20070125284A1 (en) * | 2005-12-02 | 2007-06-07 | Deere & Company, A Delaware Corporation | Flat type seed meter disk with protruded pick up orifices |
| CN200966226Y (en) * | 2006-10-30 | 2007-10-31 | 新疆科神农业装备科技开发有限公司 | Precise seeding apparatus controlled and monitored electrically |
| CN201957429U (en) * | 2011-04-02 | 2011-09-07 | 徐艺 | Synchronous air-suction type seed metering device |
-
2011
- 2011-04-02 CN CN 201110083843 patent/CN102119599A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050204972A1 (en) * | 2003-12-29 | 2005-09-22 | Kinze Manufacturing, Inc. (Iowa Corporation) | Air seed meter |
| CN2824535Y (en) * | 2005-05-31 | 2006-10-11 | 陈立凡 | Adjustable air-suction precision seed-sowing disk |
| US20070125284A1 (en) * | 2005-12-02 | 2007-06-07 | Deere & Company, A Delaware Corporation | Flat type seed meter disk with protruded pick up orifices |
| CN200966226Y (en) * | 2006-10-30 | 2007-10-31 | 新疆科神农业装备科技开发有限公司 | Precise seeding apparatus controlled and monitored electrically |
| CN201957429U (en) * | 2011-04-02 | 2011-09-07 | 徐艺 | Synchronous air-suction type seed metering device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771233A (en) * | 2012-07-31 | 2012-11-14 | 河北省农业机械化研究所有限公司 | Air-aspiration type disseminator with circumferential holes |
| CN102771233B (en) * | 2012-07-31 | 2015-03-11 | 河北省农业机械化研究所有限公司 | Air-aspiration type disseminator with circumferential holes |
| CN110199627A (en) * | 2019-07-01 | 2019-09-06 | 吉林大学 | A kind of air-suction seeding unit equipped with part flow arrangement |
| CN112205129A (en) * | 2020-09-18 | 2021-01-12 | 哈尔滨华惠农业机械制造有限公司 | Novel air-suction type electric seed sowing device |
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Application publication date: 20110713 |