CN102771233B - Air-aspiration type disseminator with circumferential holes - Google Patents
Air-aspiration type disseminator with circumferential holes Download PDFInfo
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- CN102771233B CN102771233B CN201210268237.9A CN201210268237A CN102771233B CN 102771233 B CN102771233 B CN 102771233B CN 201210268237 A CN201210268237 A CN 201210268237A CN 102771233 B CN102771233 B CN 102771233B
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- seeding
- air
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- seed
- wheel
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Abstract
The invention relates to an air-aspiration type disseminator with circumferential holes, and relates to the technical fields of seeding machines and seeding units. The air-aspiration type disseminator with the circumferential holes comprises a seeding wheel which is assembled on a central spindle, a row of seeding holes are formed on the external circumference of the seeding wheel, and are communicated with the inner cavity of the seeding wheel through air passages, the inner cavity of the seeding wheel forms a negative pressure chamber, and the negative pressure chamber is communicated with a negative pressure pipeline; a fixed air cut valve which can seal the seeding holes to seed is also arranged in the inner cavity of the seeding wheel; and the external circumference of the seeding wheel is matched and communicated with a seed box. The air-aspiration type disseminator has a simple structure and good reliability, not only can ensure reliable and sufficient seed sucking, quick and reliable seeding and no damaged seeds and seed blockage, but also can prevent missed seeding due to blocked air holes, and an air chamber has good sealing performance and smaller frictional resistance, so the disseminator is low in energy consumption; and the planting and spacing of crops are ensured, thinning is not required during the later period, so the labor intensity is reduced, the effects of protecting seedlings, cultivating strong seedlings and increasing yield and gains are realized.
Description
Technical field
The present invention relates to the technical field of seeding devices of sower.
Background technology
Seeding unit is the critical component on sower, and its service behaviour directly affects the operation quality of whole sower.The domestic development of the seeding unit to the frangible crop of the granules such as millet at present is also in reduced levels, plant not exclusively because the problems such as the structure of seeding unit, material easily cause to fill in seeding process, seeding is not thorough, seeding unit blocking or seed, by problems such as mangled injuries, can not meet the technical requirement of fine grain crop precision drilling preferably; In addition, domestic air-suction seed metering device many employings aspiration disk structure, sealing effectiveness is bad, and easily blocks, and is difficult to the sowing realizing small-sized seed.
Summary of the invention
The technical problem that the present invention solves reduces wound to plant and blockage problem, realize evenly sowing, reduce a kind of air-suction seeding unit of the pressure of later stage thinning, its structure is simple, good reliability, this seeding unit both can ensure to inhale that kind reliable fully seeding is fast and reliable, injuring-free seed, stifled kind, also avoid simultaneously and cause broadcast leakage due to air-hole blockage, air chamber sealing is good, and frictional resistance is less, and seeding unit energy consumption is low; Ensure that the field planting of crop, determine strain, the later stage does not need thinning, reduces labour intensity, achieves strong sprout of keeping a full stand of seedings, the effect of volume increase gain;
The present invention for solving the problems of the technologies described above adopted main technical schemes is: a kind of circumferential nibs air-suction seeding unit, it is characterized in that comprising and be contained in seed wheel on mandrel (can be between mandrel with seed wheel rotate or fixed be connected), the excircle of seed wheel is provided with several rows of kind of hole, this feed outlet is by the inner chamber UNICOM of air flue and seed wheel, the inner chamber of seed wheel is formed as negative pressure chamber, and this negative pressure chamber is communicated with negative-pressure pipeline; The fixed ACV Air Cut Valve closing feed outlet for seeding is provided with in the inner chamber of seed wheel; The excircle of seed wheel coordinates with kind case and is communicated with.
Described mandrel is that hollow core shaft is better, and negative pressure chamber is communicated with negative-pressure pipeline by this hollow core shaft, and seed wheel and this hollow core shaft are rotatably assorted, and ACV Air Cut Valve is contained in fixing hollow core shaft, and seed wheel and capping form negative pressure chamber.
Described negative pressure chamber is also by the fixing end face air chamber that is rotatably assorted with seeding unit and the structure such as negative-pressure pipeline is communicated with; The fixed ACV Air Cut Valve closed for the feed outlet of seeding be provided with in the inner chamber of seed wheel can fix with end face air chamber, or fixes (mandrel and seed wheel are rotationally connected) with (solid) mandrel; But structure is more complicated.
Described air flue is that cannelure is better, joins with the annular outer wall of seed wheel inner chamber, and ACV Air Cut Valve is provided with and slides and flange slide block seed can discharged in this cannelure.
Described air flue also can be poroid, and ACV Air Cut Valve is provided with and can be covered structures such as sealing the flange slide block of dying, and structure is good not as good as cannelure.
Be provided with flange sliding block spring formula hold-down mechanism, more reliable to make it seal dying property.
Feed outlet on the excircle of described seed wheel is that bellmouth is better.Also can according to requiring design.
Described seed wheel is connected better with land wheel machine driving.
The invention has the beneficial effects as follows: compared with prior art, effectively can reduce wound plant and solve blockage problem, its structure is simple, good reliability, this seeding unit both can ensure to inhale that kind reliable fully seeding is fast and reliable, injuring-free seed, stifled kind, also avoid simultaneously and cause broadcast leakage due to air-hole blockage, air chamber sealing is good, and frictional resistance is less, and seeding unit energy consumption is low; Ensure that the field planting of crop, determine strain, the later stage does not need thinning, reduces labour intensity, achieves strong sprout of keeping a full stand of seedings, the effect of volume increase gain.
Be described further below in conjunction with embodiment and accompanying drawing, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the assembly structure decomposing schematic representation of one embodiment of the invention.
Fig. 2 is the structural representation of seed wheel in Fig. 1.
Fig. 3 is the perspective view of piece number 3 ACV Air Cut Valve in Fig. 1.
In figure: 1-mandrel, 2-seed wheel, 3-ACV Air Cut Valve, 31-flange slide block, 4-regulating spring, 5-capping, 6-trip bolt, 7-ACV Air Cut Valve support, 8-kind case.
Embodiment
Refer to Fig. 1, Fig. 2, Fig. 3, this circumferential nibs air-suction seeding unit, comprise the seed wheel 2 be contained on mandrel 1, the excircle of seed wheel 2 is provided with several rows of kind of hole, this feed outlet is by the inner chamber UNICOM of air flue and seed wheel 2, the inner chamber of seed wheel 2 is formed as negative pressure chamber, and this negative pressure chamber is communicated with negative-pressure pipeline; Be provided with the fixed ACV Air Cut Valve 3 closing the feed outlet of wish seeding in the inner chamber of seed wheel 2, the excircle of seed wheel 2 coordinates with kind case 8 and is communicated with.Described mandrel 1 is hollow core shaft, and negative pressure chamber is communicated with negative-pressure pipeline by this hollow core shaft, and seed wheel 2 and this hollow core shaft are rotatably assorted, and ACV Air Cut Valve 3 is contained in fixing hollow core shaft, and seed wheel 2 and capping 5 form negative pressure chamber.Described air flue is cannelure, joins with the annular outer wall of seed wheel 2 inner chamber, and ACV Air Cut Valve 3 is provided with and slides and flange slide block seed can discharged in this cannelure.Described flange slide block is compressed by spring hold-down mechanism.Feed outlet on the excircle of described seed wheel 2 is bellmouth.Described seed wheel 2 is connected with land wheel machine driving.
During seeding, hollow core shaft maintains static, and as pump-line; Uniform pore openings on seed wheel 2 outer ring surface contour, hole is tapered, and the same contour of inner ring surface is opened a dark groove; Seed wheel 2 is arranged in hollow core shaft 1 by bearing, and mounting sealing device, it rotates under the driving of seeder ground wheel; Seed wheel operates with land wheel.Plant case to maintain static, closely cooperate with seed sowing shell 2, make seed touch the suction kind nibs of seed sowing shell 2; The ACV Air Cut Valve 3 external flange slide block 31 dark groove of inner ring surface that is proper and seed wheel 2 matches, and is fixed in hollow core shaft by regulating spring 4 by flange slider bracket 7; Last seed wheel 2 is sealed by capping 5; The kind grain of planting in case is adsorbed in nibs under suction function, runs to ACV Air Cut Valve 3 place with nibs, under the acting in conjunction pushed away is squeezed in deadweight and ACV Air Cut Valve, is squeezed by the grain sucking nibs and pushs out, avoid nibs to block.Through on probation, effect is fine.
Claims (1)
1. a circumferential nibs air-suction seeding unit, is characterized in that comprising the seed wheel (2) being contained in mandrel (1) one end, and the excircle of seed wheel (2) is provided with several rows of kind of hole, and described feed outlet is bellmouth; This feed outlet is by the inner chamber UNICOM of air flue and seed wheel (2), described air flue is cannelure, join with the annular outer wall of seed wheel (2) inner chamber, the inner chamber of seed wheel (2) is negative pressure chamber, seed wheel (2) and capping (5) form negative pressure chamber, described mandrel (1) is hollow core shaft, and described negative pressure chamber is communicated with negative-pressure pipeline by this hollow core shaft; The excircle of seed wheel (2) coordinates with kind case (8) and is communicated with; Seed wheel (2) and described hollow core shaft are rotatably assorted; Hollow core shaft is fixed;
Be provided with the fixed ACV Air Cut Valve (3) closing the feed outlet of wish seeding in the inner chamber of seed wheel (2), ACV Air Cut Valve (3) is contained in fixing hollow core shaft; Described ACV Air Cut Valve (3) is provided with and slides and flange slide block seed can discharged in described cannelure, is also provided with flange sliding block spring formula hold-down mechanism, under the acting in conjunction pushed away is squeezed in deadweight and ACV Air Cut Valve, is squeezed by the grain sucking nibs and pushs out;
Described seed wheel (2) is connected with land wheel machine driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210268237.9A CN102771233B (en) | 2012-07-31 | 2012-07-31 | Air-aspiration type disseminator with circumferential holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210268237.9A CN102771233B (en) | 2012-07-31 | 2012-07-31 | Air-aspiration type disseminator with circumferential holes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102771233A CN102771233A (en) | 2012-11-14 |
| CN102771233B true CN102771233B (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210268237.9A Expired - Fee Related CN102771233B (en) | 2012-07-31 | 2012-07-31 | Air-aspiration type disseminator with circumferential holes |
Country Status (1)
| Country | Link |
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| CN (1) | CN102771233B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106576518B (en) * | 2016-10-26 | 2018-10-30 | 华南农业大学 | A kind of mechanical and aspiration convolution feed mechanism for seed |
| CN106922262B (en) * | 2017-03-14 | 2019-11-15 | 东北农业大学 | She Shidaozhong mechanism is blown with the matching used automatically controlled strength of feed mechanism for seed |
| CN109588088A (en) * | 2019-01-14 | 2019-04-09 | 黑龙江八农垦大学 | Aspiration type hole wheel combined type feed mechanism for seed and seed feeding method |
| CN111656920B (en) * | 2020-06-28 | 2021-07-13 | 华中农业大学 | Small-grain-size seed air suction type hole wheel type precision hole seeding device |
| CN111788910A (en) * | 2020-08-27 | 2020-10-20 | 扬州大学 | Air-suction type spiral groove wheel seed metering device |
| CN112616379A (en) * | 2021-01-12 | 2021-04-09 | 青岛理工大学 | Synchronous air-suction type rice breeding seed sowing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102119599A (en) * | 2011-04-02 | 2011-07-13 | 徐艺 | Synchronous air-aspiration type precise measuring device |
| CN102124846A (en) * | 2011-04-02 | 2011-07-20 | 徐艺 | Air-aspiration type precise seed taking device |
| CN201938052U (en) * | 2010-12-13 | 2011-08-24 | 陈浩 | Air-aspirated system for microcomputer air-aspirated dibbling machine |
-
2012
- 2012-07-31 CN CN201210268237.9A patent/CN102771233B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201938052U (en) * | 2010-12-13 | 2011-08-24 | 陈浩 | Air-aspirated system for microcomputer air-aspirated dibbling machine |
| CN102119599A (en) * | 2011-04-02 | 2011-07-13 | 徐艺 | Synchronous air-aspiration type precise measuring device |
| CN102124846A (en) * | 2011-04-02 | 2011-07-20 | 徐艺 | Air-aspiration type precise seed taking device |
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| Publication number | Publication date |
|---|---|
| CN102771233A (en) | 2012-11-14 |
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Granted publication date: 20150311 Termination date: 20200731 |