CN203860021U - High-speed precise hole-sowing seed metering device - Google Patents
High-speed precise hole-sowing seed metering device Download PDFInfo
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- CN203860021U CN203860021U CN201420152088.4U CN201420152088U CN203860021U CN 203860021 U CN203860021 U CN 203860021U CN 201420152088 U CN201420152088 U CN 201420152088U CN 203860021 U CN203860021 U CN 203860021U
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Abstract
The utility model discloses a high-speed precise hole-sowing seed metering device, which comprises a seed metering device housing, a seed box mounted on the top surface of the seed metering device housing and a seed guide pipe mounted on the bottom surface of the seed metering device housing; a driving wheel and a driven wheel are arranged in the seed metering device housing and are in transmission connection through a seed filling belt; a seed filling chamber is arranged on the outer surface of the seed filling belt; a seed filling tooth is arranged on each of the two sides of the opening part of the seed filling chamber in the direction of movement; a guide inwards-inclined tooth surface inclined outwards is arranged on one side, facing the seed filling chamber, of each seed filling tooth; the included angle alpha of each guide inwards-inclined tooth surface and the outer surface of the seed filling belt is 30-60 degrees. According to the utility model, the seed filling teeth with the guide inwards-inclined tooth surfaces are additionally arranged on the two sides of the opening part of the seed filling chamber, thus, during the seed filling process, seeds are disturbed by the seed filling teeth, so as to enable seeds to enter the seed filling chamber smoothly under the carding and guiding effects of the guide inwards-inclined tooth surfaces, the phenomenon of seed accumulation is avoided, the miss-seeding rate is low, the structure is simple, and the high-speed precise hole-sowing seed metering device is suitable for high-speed precise hole-sowing.
Description
Technical field
The utility model relates to a kind of seeding unit, particularly relates to a kind of high speed extractive quantity hole sowing seeder unit.
Background technology
At present, along with the quickening of land transformation advances, some large-scale farms, village co op and home farm etc. are flourish just rapidly, and field is increased to hundreds of mu, several thousand mu, mu even up to ten thousand by original several mu, tens mu.Like this, traditional technology of broadcasting sowing, the live and rice transplanting technology of machinery, because of slow, the consuming time length of speed with miss the farming season, can not meet needs of production; Meanwhile, although the aircraft technology of broadcasting sowing is applicable to land for growing field crops operation, its cost is high, is difficult at present promote.Therefore, Developing High-speed precise hole sowing technology seems particularly important, and seeding unit is as the core of essence amount direct seeding technique, and its performance is the prerequisite that guarantees high speed precise hole sowing.
Chinese patent ZL200810150293.6 discloses a kind of belt type seeding device, it is comprised of seeding box, trench digging spade, furrower, described trench digging spade top is communicated with going to the bottom of seeding box, bottom front end is connected with furrower, rear end is for going out kind of a mouth, in the passage being become with furrower petioliform by seeding box, triangle is provided with three belt pulleys, and the periphery cover of belt pulley has seeding band, on seeding band, has feed outlet; In the passage being become with furrower petioliform by seeding box, be also provided with one with the adjustable plate of adjusting bolt.Although this belt type seeding device is higher than the sowing efficiency of traditional seeding technique, there is following problem in it:
1, owing to not having under outer force-disturbance, between seed, there is certain cohesive force, so this seeding unit is in seed-filling process, be very easy to occur " knot doming effect ", thereby make to arrange unordered seed be difficult to enter fill kind of band (being seeding band) fill kind of a chamber (being feed outlet), leakage sowing rate is high, is unfavorable for the high speed precise hole sowing of seed;
2, during this belt type seeding device working at high speed, its fill kind with on seed be easily thrown out of and fill kind of a chamber, leakage sowing rate is high.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency of above-mentioned background technology, and a kind of high speed extractive quantity hole sowing seeder unit that can effectively reduce leakage sowing rate is provided.
In order to realize above object, a kind of high speed extractive quantity hole sowing seeder unit that the utility model provides, comprise seeder unit shell, be arranged on the kind case on described seeder unit shell end face and be arranged on the grain conductor on described seeder unit shell bottom surface, in described seeder unit shell, be separately installed with driving wheel and driven pulley, between described driving wheel and driven pulley, by filling kind of a band, be in transmission connection, the described band outer surface that fills kind is provided with and fills kind of a chamber, the described oral area that fills kind of chamber is respectively equipped with one along the both sides of the direction of motion and fills kind of a tooth, described kind of the tooth that fills is provided with pitch face in outward-dipping guiding towards a described side of filling kind of chamber, in described guiding pitch face with described in to fill kind of the angle α with outer surface be 30～60 °.By the oral area both sides filling kind of chamber, add respectively kind of the tooth that fills of pitch face in a tape guide, like this, in seed-filling process, described kind of the tooth that fills can produce disturbance to seed, described in making to enter smoothly under the combing of seed pitch face in described guiding and guide effect, fill kind of a chamber, avoided the generation of " knot doming effect ", leakage sowing rate is low, simple in structure, be applicable to the high speed precise hole sowing of seed.
In such scheme, described in fill kind of the back of tooth and be provided with the flank of tooth outside guiding to a described side of filling kind of chamber, the outer flank of tooth of described guiding with described in to fill kind of the angle β with outer surface be 90 °.By the outer flank of tooth of the guiding that adds, can play combing and guide effect to filling the seed of kind of chamber described in not entering, for these seeds enter the next one, fill kind of a chamber and prepare, reduce further leakage sowing rate.
In such scheme, described in fill kind of tooth end face be arcuate structure, described end face is connected with the flank of tooth outside pitch face in described guiding and described guiding respectively along the both sides of the direction of motion, the two ends of described end face are filled kind of a band outer surface smoother transition and are connected with described respectively.Described end face coordinates the clear kind brush one in seeding unit to work, seed flow can be separated in an orderly manner to two motion circuits, article one, be the circuit that fills kind of chamber described in entering, another is by the combing of the outer flank of tooth of described guiding and guiding, to enter the next one to fill kind of a chamber, has further reduced leakage sowing rate.
In such scheme, the described outside, one end of filling kind of tooth orientation movements direction is provided with the outer pitch face of guiding, the outer pitch face of described guiding with described in to fill kind of the angle with outer surface be 90 °, outside the outer pitch face of described guiding and described guiding, the angle γ of the flank of tooth is 120～150 °.By the outer pitch face of the guiding that adds, can be first to filling the seed of kind of chamber described in not entering, play combing and guide effect, so that these seeds smoothly transit on the outer flank of tooth of described guiding, optimized the moving line of seed, then reduced further leakage sowing rate.
In such scheme, pitch face in described guiding, described in fill the end face of kind of tooth and the outer pitch face of described guiding to the direction of motion extend with described in fill kind of a band outer surface and intersect at same O point, described in fill and kind with the outer pitch face of pitch face, described end face and described guiding in outer surface, described guiding, in described kind of the one end for tooth orientation movements direction of filling, form sharp wedge structure.Described in this point wedge structure is more conducive to, fill kind of tooth seed flow is separated into two motion circuits in an orderly manner, article one, be the circuit that fills kind of chamber described in entering, another is by the combing of the outer flank of tooth of described guiding and guiding, to enter the next one to fill kind of a chamber, has further reduced leakage sowing rate.
In such scheme, pitch face fills on the inwall of kind of chamber described in being positioned at one end of the direction of motion dorsad in described guiding.Like this, in described guiding, the seed of pitch face combing and guiding does not fill kind of a chamber as described in entering in high-speed motion process, described in can striking, fill on the inwall of kind of chamber, thereby drop to fill kind indoor, thereby reduced further leakage sowing rate.
In such scheme, described end face and described in the maximum H that fills kind with distance between outer surface be 2～3mm, the arc radius of described end face is 18～22mm; Described length L of filling kind of tooth is 15～18mm, described in fill kind of tooth width W be 2.5～4.5mm, fill described in same kind of both sides, chamber described in the distance of filling between kind of tooth be that D is 5～7mm.Described kind of the chamber of filling is shaped as down isosceles trapezoid along the vertical section of the direction of motion, the described length of side of going to the bottom of isosceles trapezoid is 1.5～2.5mm, upper bottom side length is 13.5～14.5mm, angle ε between described Yu Yao limit, bottom of falling isosceles trapezoid is 120～150 °, described in fill kind of chamber width with fill described in same kind of both sides, chamber described in the distance D of filling between kind of tooth consistent.By filling kind of a chamber described in general, be designed to down isosceles trapezoidal structure, described in the seed of being more convenient for enters, fill kind of a chamber, described in the clear kind brush cleaning of being yet more convenient in seeding unit does not enter, fill the seed of kind of chamber.
In such scheme, one end of corresponding described grain conductor is provided with described and fills the Hu Zhong mechanism that kind of band matches in described seeder unit shell, described Hu Zhong mechanism comprise arcuate structure protect kind of a support, several protect described in being arranged on kind of support protect kind of belt wheel and be sleeved on described in protect kind of the band that protects on kind of belt wheel, described in protect kind of band with described in fill kind of a band and contact.By the Hu Zhong mechanism adding, can effectively reduce leakage sowing rate.
In such scheme, the position of filling kind of chamber in the top inner wall of described seeder unit shell described in correspondence is provided with supernatant kind brush.This supernatant kind brush can brush out filling kind of an indoor unnecessary seed, so that unnecessary seed successfully enters the next one, fills kind of a chamber.
In such scheme, described seeder unit shell bottom is provided with the junction of described grain conductor the lower clear kind brush that fills kind of chamber towards described.This lower clear kind brush can be removed filling kind of indoor impurity, to guarantee to fill the cleannes of kind of band.
Operation principle of the present utility model is as follows:
When filling kind band high speed rotating, described in first seed flow contacts, fill the sharp wedge structure of kind of tooth, described in entering in an orderly manner under the combing of part seed pitch face in described guiding and guide effect, fill kind of a chamber, under the combing of another part seed pitch face outside described guiding and guide effect, be transitioned into outside described guiding on the flank of tooth, and then to the next one, fill the position of kind of chamber by guiding movement on the outer flank of tooth of described guiding, for entering the next one, fill kind of a chamber and prepare; When filling kind of indoor being full of after seed, continue to move to the position of Hu Zhong mechanism, protect kind of band with fill kind of band close contact will described in fill kind of a chamber sealing, to prevent that seed from deviating from because of centrifugal force; Then, fill the porch that grain conductor is continued to move in kind of chamber, fill kind of chamber and kind be with separatedly with protecting, seed, because gravity drops in grain conductor automatically, completes seeding process.
The utility model has the advantage of:
1, by the oral area both sides filling kind of chamber, add respectively kind of the tooth that fills of pitch face in a tape guide, like this, in seed-filling process, described kind of the tooth that fills can produce disturbance to seed, described in making to enter smoothly under the combing of seed pitch face in described guiding and guide effect, fill kind of a chamber, avoided the generation of " knot doming effect ", leakage sowing rate is low, simple in structure, be applicable to the high speed precise hole sowing of seed;
2, by the outer flank of tooth of the guiding that adds, can play combing and guide effect to filling the seed of kind of chamber described in not entering, for these seeds enter the next one, fill kind of a chamber and prepare, reduce further leakage sowing rate;
3, described end face coordinates the clear kind brush one in seeding unit to work, seed flow can be separated in an orderly manner to two motion circuits, article one, be the circuit that fills kind of chamber described in entering, another is by the combing of the outer flank of tooth of described guiding and guiding, to enter the next one to fill kind of a chamber, has further reduced leakage sowing rate;
4, by the outer pitch face of the guiding that adds, can be first to filling the seed of kind of chamber described in not entering, play combing and guide effect, so that these seeds smoothly transit on the outer flank of tooth of described guiding, optimized the moving line of seed, then reduced further leakage sowing rate;
5, this point wedge structure fills kind of tooth described in being more conducive to seed flow is separated into two motion circuits in an orderly manner, article one, be the circuit that fills kind of chamber described in entering, another is by the combing of the outer flank of tooth of described guiding and guiding, to enter the next one to fill kind of a chamber, has further reduced leakage sowing rate;
6, pitch face fills on the inwall of kind of chamber described in being positioned at one end of the direction of motion dorsad in described guiding, like this, in described guiding, the seed of pitch face combing and guiding does not fill kind of a chamber as described in entering in high-speed motion process, described in can striking, fill on the inwall of kind of chamber, thereby drop to fill kind indoor, thereby reduced further leakage sowing rate;
7, by filling kind of a chamber described in general, be designed to down isosceles trapezoidal structure, described in the seed of being more convenient for enters, fill kind of a chamber, described in the clear kind brush cleaning of being yet more convenient in seeding unit does not enter, fill the seed of kind of chamber;
8, by filling kind of a band with described in elastomeric material manufacture, like this, when the operation of seeding unit high speed, described in fill kind of band and can play cushioning effect to seed, avoided seed because of described fill under force-disturbance, to enter outside kind of tooth etc. produce temporary impact load while filling kind of chamber and slip out and fill kind of a chamber, reduced leakage sowing rate; And, can also play the effect that reduces slippage rate, described in effectively preventing, fill between kind of band and belt wheel and trackslip;
9, by the Hu Zhong mechanism adding, can effectively reduce leakage sowing rate;
10, the supernatant kind brush adding can brush out filling kind of an indoor unnecessary seed, so that unnecessary seed successfully enters the next one, fills kind of a chamber;
11, the lower clear kind brush adding can be removed filling kind of indoor impurity, to guarantee to fill the cleannes of kind of band.
The utility model is compared with the prior art, and fully shows that its superiority is: high speed precise hole sowing that leakage sowing rate is low, simple in structure, easy to use, be applicable to seed etc.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the side-looking structural representation of Fig. 1;
Fig. 3 is the plan structure schematic diagram of Fig. 1;
Fig. 4 is the structural representation of seeder unit shell;
Fig. 5 is the side-looking structural representation of Fig. 4;
Fig. 6 is the plan structure schematic diagram of Fig. 4;
Fig. 7 is the structural representation that fills kind of band;
Fig. 8 is the cut-away section structural representation of Fig. 7;
Fig. 9 is the double schematic diagram that fills kind of band that fills kind of cell structure;
Figure 10 is the position relationship structural representation that fills kind of chamber and fill kind of tooth;
Figure 11 is another structural representation that fills kind of chamber and fill the position relationship of kind of tooth;
Figure 12 is the another structural representation that fills kind of chamber and fill the position relationship of kind of tooth;
Figure 13 is a structural representation again that fills kind of chamber and fill the position relationship of kind of tooth;
Figure 14 is the main TV structure schematic diagram that fills kind of chamber and fill kind of tooth;
Figure 15 is the left TV structure schematic diagram of Figure 14;
Figure 16 is the right TV structure schematic diagram of Figure 14;
Figure 17 is the plan structure schematic diagram of Figure 14.
In figure: fill to plant and be with 1, fill kind of chamber 2, fill kind of tooth 3, pitch face 3a in guiding, the outer flank of tooth 3b that leads, end face 3c, the outer pitch face 3d that leads, seeder unit shell 4, plants case 5, grain conductor 6, driving wheel 7, driven pulley 8, Hu Zhong mechanism 9, protects kind of a support 9a, protects kind of a belt wheel 9b, protect kind of a band 9c, supernatant kind brush 10, lower clear kind brush 11.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, but this embodiment should not be construed as restriction of the present utility model.
The present embodiment provides a kind of high speed extractive quantity hole sowing seeder unit, comprise seeder unit shell 4, be arranged on the kind case 5 on described seeder unit shell 4 end faces and be arranged on the grain conductor 6 on described seeder unit shell 4 bottom surfaces, in described seeder unit shell 4, be separately installed with driving wheel 7 and driven pulley 8, between described driving wheel 7 and driven pulley 8, by filling to plant, be with 1 to be in transmission connection, described filling kind is with 1 outer surface to be provided with to fill kind of chamber 2, the described oral area that fills kind of chamber 2 is respectively equipped with one along the both sides of the direction of motion and fills kind of tooth 3, described kind of the tooth 3 that fills is provided with pitch face 3a in outward-dipping guiding towards a described side of filling kind of chamber 2, in described guiding pitch face 3a with described in to fill kind of the angle α with 1 outer surface be 30～60 °.What by the oral area both sides filling kind of chamber 2, add respectively pitch face 3a in a tape guide fills kind of tooth 3, like this, in seed-filling process, described kind of the tooth 3 that fills can produce disturbance to seed, described in making to enter smoothly under the combing of seed pitch face 3a in described guiding and guide effect, fill kind of chamber 2, avoided the generation of " knot doming effect ", leakage sowing rate is low, simple in structure, be applicable to the high speed precise hole sowing of seed.
Above-mentioned kind of the chamber 2 of filling is shaped as down isosceles trapezoid along the vertical section of the direction of motion, the described length of side of going to the bottom of isosceles trapezoid is 1.5～2.5mm, upper bottom side length is 13.5～14.5mm, and the angle ε between the Yu Yao limit, bottom of described isosceles trapezoid is 120～150 °.By filling kind of chamber 2 described in general, be designed to down isosceles trapezoidal structure, described in the seed of being more convenient for enters, fill kind of chamber 2, described in the clear kind brush cleaning of being yet more convenient in seeding unit does not enter, fill the seed of kind of chamber 2.Particularly, based on slip, fill kind of a principle, according to the frictional behavior of seed, the sliding friction angle of seed is generally greater than 30 °, to guarantee the unit weight space of seed seed simultaneously, therefore described in fill kind of chamber 2 working face (i.e. described waist limit of falling isosceles trapezoid) be designed to 120～150 ° with filling angle ε between kind of chamber 2 bottom surfaces (the base of isosceles trapezoid), like this, described in seed more easily slips under force of sliding friction and Action of Gravity Field, fill kind of chamber 2; Seed-bearing when filling kind of chamber 2 and moving to described clear kind brush place when filling, clear, to plant under brush effect, the seed that fills kind of chamber 2 upper surfaces just can brush out along the described working face that fills kind of chamber 2.
Above-mentionedly fill the side that kind of tooth 3 fills kind of chamber 2 described in dorsad and be provided with the outer flank of tooth 3b of guiding, the outer flank of tooth 3b of described guiding with described in to fill kind be 90 ° with the angle β of 1 outer surface.By the outer flank of tooth 3b of the guiding that adds, can play combing and guide effect to filling the seed of kind of chamber 2 described in not entering, for these seeds enter the next one, fill kind of chamber 2 and prepare, reduce further leakage sowing rate.
The above-mentioned end face 3c that fills kind of tooth 3 is arcuate structure, and described end face 3c is connected with flank of tooth 3b outside pitch face 3a in described guiding and described guiding respectively along the both sides of the direction of motion, and the two ends of described end face 3c kind are with 1 outer surface smoother transition to be connected with described filling respectively.Described end face 3c coordinates the clear kind brush one in seeding unit to work, seed flow can be separated in an orderly manner to two motion circuits, article one, be the circuit that fills kind of chamber 2 described in entering, another is by the combing of the outer flank of tooth 3b of described guiding and guiding, to enter the next one to fill kind of chamber 2, has further reduced leakage sowing rate.In described guiding, pitch face 3a is connected with the described inwall that fills kind of chamber 2 along a side of the direction of motion, in described guiding, pitch face 3a is connected along a side of the direction of motion with described end face 3c along the opposite side of the direction of motion, described end face 3c is connected along a side of the direction of motion with flank of tooth 3b outside described guiding along the opposite side of the direction of motion, and described guiding outward flank of tooth 3b is with 1 outer surface to be connected along the opposite side of the direction of motion with the described kind of filling.
The above-mentioned outside, one end of filling kind of tooth 3 orientation movements directions is provided with the outer pitch face 3d of guiding, the outer pitch face 3d of described guiding with described in to fill kind of the angle with 1 outer surface be 90 °, outside the outer pitch face 3d of described guiding and described guiding, the angle γ of flank of tooth 3b is 120～150 °.By the outer pitch face 3d of the guiding that adds, can be first to filling the seed of kind of chamber 2 described in not entering, play combing and guide effect, so that these seeds smoothly transit on the outer flank of tooth 3b of described guiding, optimize the moving line of seed, then reduced further leakage sowing rate.
Pitch face 3a in above-mentioned guiding, described in fill the end face 3c of kind of tooth 3 and the outer pitch face 3d of described guiding to the direction of motion extend with described in fill and kind be with 1 outer surface to intersect at same O point, described in described O point is positioned at, fill outside kind of chamber 2, described in fill kind with the outer pitch face 3d of pitch face 3a, described end face 3c and described guiding in 1 outer surface, described guiding and form sharp wedge structure in described one end of filling kind of tooth 3 orientation movements directions.Described in this point wedge structure is more conducive to, fill kind of tooth 3 seed flow is separated into two motion circuits in an orderly manner, article one, be the circuit that fills kind of chamber 2 described in entering, another is by the combing of the outer flank of tooth 3b of described guiding and guiding, to enter the next one to fill kind of chamber 2, has further reduced leakage sowing rate.
Pitch face 3a fills on the inwall of kind of chamber 2 described in being positioned at one end of the direction of motion dorsad in above-mentioned guiding.Like this, in described guiding, the seed of pitch face 3a combing and guiding does not fill kind of chamber 2 as described in entering in high-speed motion process, described in can striking, fills on the inwall of kind of chamber 2, fills in kind of chamber 2, thereby reduced further leakage sowing rate thereby drop to.Particularly, be positioned at described guiding pitch face 3a and fill edge on the inwall of kind of chamber 2 described in being positioned in one end of the direction of motion dorsad.
Above-mentioned end face 3c and described in the maximum H that fills kind with distance between 1 outer surface be 2～3mm, the arc radius of described end face 3c is 18～22mm.Described length L of filling kind of tooth 3 is 15～18mm, described in fill kind of tooth 3 width W be 2.5～4.5mm, fill described in same 2 both sides, kind of chamber described in the distance of filling between kind of tooth 3 be that D is 5～7mm, this distance D with described in to fill the width of kind of chamber 2 consistent.
Above-mentioned filling kind is with 1 along the direction of motion, to be at least provided with described in a row and to fill kind of chamber 2, fills kind of chamber 2 interlaced arrangement described in adjacent two rows.The described kind of filling is with 1 by elastomeric material, to be made.By being with 1 with filling described in elastomeric material manufacture to plant, like this, when the operation of seeding unit high speed, described in fill and kind be with 1 can play cushioning effect to seed, avoided seed because of described fill under force-disturbance, to enter outside kind of tooth 3 grades produce temporary impact load while filling kind of chamber and slip out and fill kind of chamber 2, reduced leakage sowing rate; And, can also play the effect that reduces slippage rate, described in effectively preventing, fill kind be with 1 and belt wheel between trackslip.For the generation that prevents from further trackslipping, also can offer anti-skidding teeth groove on filling kind with 1 inner surface described, change drive into driving cog simultaneously, described in the mode by tooth transmission drives, fill and kind be with 1 rotation.
When actual production, described in fill kind of tooth 3 and can kind be with 1 global formation with described filling, but also after each self-forming the mode by bonding or welding will described in fill kind of tooth 3 and fill described in being arranged on and kind be with on 1.
One end of the described grain conductor 6 of the interior correspondence of above-mentioned seeder unit shell 4 is provided with described filling and plants with the 1 Hu Zhong mechanism 9 matching, described Hu Zhong mechanism 9 comprise arcuate structure protect kind of a support 9a, several protect described in being arranged on kind of support 9a protect kind of belt wheel 9b and be sleeved on described in protect kind of the band 9c that protects on kind of belt wheel 9b, described in protect kind of band 9c with described in fill kind of a band and contact.By the Hu Zhong mechanism 9 adding, can effectively reduce leakage sowing rate.
The position of filling kind of chamber 2 in the top inner wall of above-mentioned seeder unit shell 4 described in correspondence is provided with supernatant kind brush 10.This supernatant kind brush 10 can brush out filling kind of an indoor unnecessary seed, so that unnecessary seed successfully enters the next one, fills kind of a chamber.The junction of described seeder unit shell 4 bottoms and described grain conductor 6 is provided with the lower clear kind brush 11 that fills kind of chamber 2 towards described.This lower clear kind brush 11 can be removed filling kind of indoor impurity, to guarantee to fill the cleannes of kind of band.
Operation principle of the present utility model is as follows:
When originally filling kind band high speed rotating, described in first seed flow contacts, fill the sharp wedge structure of kind of tooth 3, described in entering in an orderly manner under the combing of part seed pitch face 3a in described guiding and guide effect, fill kind of chamber 2, under the combing of another part seed pitch face 3d outside described guiding and guide effect, be transitioned into outside described guiding on flank of tooth 3b, and then to the next one, fill the position of kind of chamber 2 by the upper guiding movement of the outer flank of tooth 3b of described guiding, for entering the next one, fill kind of chamber 2 and prepare; In filling kind of chamber 2, be full of after seed, continue to move to the position of Hu Zhong mechanism 9, protect kind band 9c with fill kind be with 1 close contact will described in fill 2 sealings of kind of chamber, to prevent that seed from deviating from because of centrifugal force; Then, fill the porch that grain conductor 6 is continued to move in kind of chamber 2, fill kind of chamber 2 and to protect kind band 9c separated, seed, because gravity drops in grain conductor 6 automatically, completes seeding process.
What the utility model added respectively pitch face 3a in a tape guide by the oral area both sides filling kind of chamber 2 fills kind of tooth 3, like this, in seed-filling process, described kind of the tooth 3 that fills can produce disturbance to seed, described in making to enter smoothly under the combing of seed pitch face 3a in described guiding and guide effect, fill kind of chamber 2, avoided the generation of " knot doming effect ", leakage sowing rate is low, simple in structure, be applicable to the high speed precise hole sowing of seed; By the outer flank of tooth 3b of the guiding that adds, can play combing and guide effect to filling the seed of kind of chamber 2 described in not entering, for these seeds enter the next one, fill kind of chamber 2 and prepare, reduce further leakage sowing rate; Described end face 3c coordinates the clear kind brush one in seeding unit to work, seed flow can be separated in an orderly manner to two motion circuits, article one, be the circuit that fills kind of chamber 2 described in entering, another is by the combing of the outer flank of tooth 3b of described guiding and guiding, to enter the next one to fill kind of chamber 2, has further reduced leakage sowing rate; By the outer pitch face 3d of the guiding that adds, can be first to filling the seed of kind of chamber 2 described in not entering, play combing and guide effect, so that these seeds smoothly transit on the outer flank of tooth 3b of described guiding, optimize the moving line of seed, then reduced further leakage sowing rate; Described in this point wedge structure is more conducive to, fill kind of tooth 3 seed flow is separated into two motion circuits in an orderly manner, article one, be the circuit that fills kind of chamber 2 described in entering, another is by the combing of the outer flank of tooth 3b of described guiding and guiding, to enter the next one to fill kind of chamber 2, has further reduced leakage sowing rate; Pitch face 3a fills on the inwall of kind of chamber 2 described in being positioned at one end of the direction of motion dorsad in described guiding, like this, in described guiding, the seed of pitch face 3a combing and guiding does not fill kind of chamber 2 as described in entering in high-speed motion process, described in can striking, fill on the inwall of kind of chamber 2, thereby drop to, fill in kind of chamber 2, thereby reduced further leakage sowing rate; By filling kind of chamber 2 described in general, be designed to down isosceles trapezoidal structure, described in the seed of being more convenient for enters, fill kind of chamber 2, described in the clear kind brush cleaning of being yet more convenient in seeding unit does not enter, fill the seed of kind of chamber 2; By being with 1 with filling described in elastomeric material manufacture to plant, like this, when the operation of seeding unit high speed, described in fill and kind be with 1 can play cushioning effect to seed, avoided seed because of described fill under force-disturbance, to enter outside kind of tooth 3 grades produce temporary impact load while filling kind of chamber and slip out and fill kind of chamber 2, reduced leakage sowing rate; And, can also play the effect that reduces slippage rate, described in effectively preventing, fill kind be with 1 and belt wheel between trackslip; By the Hu Zhong mechanism 9 adding, can effectively reduce leakage sowing rate; The supernatant kind brush 10 adding can brush out filling kind of an indoor unnecessary seed, so that unnecessary seed successfully enters the next one, fills kind of a chamber; The lower clear kind brush 11 adding can be removed filling kind of indoor impurity, to guarantee to fill the cleannes of kind of band.
Above embodiment has been described basic principle of the present utility model and principal character, illustrates advantage of the present utility model.The utility model is not subject to the restriction of above-mentioned embodiment, and in the protection domain of spirit of the present utility model and claim, any modification and change that the utility model is made, all fall in protection domain of the present utility model.
Claims (10)
1. a high speed extractive quantity hole sowing seeder unit, comprise seeder unit shell (4), be arranged on the kind case (5) on described seeder unit shell (4) end face and be arranged on the grain conductor (6) on described seeder unit shell (4) bottom surface, in described seeder unit shell (4), be separately installed with driving wheel (7) and driven pulley (8), between described driving wheel (7) and driven pulley (8), by filling kind of a band (1), be in transmission connection, described band (1) outer surface that fills kind is provided with and fills kind of a chamber (2), it is characterized in that: described in fill kind of a chamber (2) oral area along the both sides of the direction of motion, be respectively equipped with one and fill kind of a tooth (3), described kind of the tooth (3) that fills is provided with pitch face in outward-dipping guiding (3a) towards a described side of filling kind of a chamber (2), in described guiding pitch face (3a) with described in to fill kind of the angle α of band (1) outer surface be 30～60 °.
2. a kind of high speed extractive quantity hole sowing seeder unit as claimed in claim 1, it is characterized in that: described in fill the side that kind of a tooth (3) fills kind of a chamber (2) described in dorsad and be provided with the guiding outer flank of tooth (3b), the outer flank of tooth (3b) of described guiding with described in fill that kind to be with the angle β of (1) outer surface be 90 °.
3. a kind of high speed extractive quantity hole sowing seeder unit as claimed in claim 2, it is characterized in that: described in fill kind of a tooth (3) end face (3c) be arcuate structure, described end face (3c) is connected with the flank of tooth (3b) outside pitch face (3a) in described guiding and described guiding respectively along the both sides of the direction of motion, and the two ends of described end face (3c) are filled kind of band (1) outer surface smoother transition and are connected with described respectively.
4. a kind of high speed extractive quantity hole sowing seeder unit as claimed in claim 2, it is characterized in that: described in fill kind of a tooth (3) orientation movements direction one end outside be provided with guiding outer pitch face (3d), the outer pitch face (3d) of described guiding with described in to fill kind of the angle of band (1) outer surface be 90 °, the outer pitch face (3d) of described guiding is 120～150 ° with the angle γ of the outer flank of tooth (3b) of described guiding.
5. a kind of high speed extractive quantity hole sowing seeder unit as claimed in claim 4, it is characterized in that: pitch face (3a) in described guiding, described in fill the end face (3c) of kind of a tooth (3) and the outer pitch face (3d) of described guiding to the direction of motion extend with described in fill kind of band (1) outer surface and intersect at same O point, described in fill in kind of band (1) outer surface, described guiding pitch face (3d) outside pitch face (3a), described end face (3c) and described guiding and form sharp wedge structure in described one end of filling kind of a tooth (3) orientation movements direction.
6. a kind of high speed extractive quantity hole sowing seeder unit as claimed in claim 1, is characterized in that: in described guiding, pitch face (3a) fills on the inwall of kind of a chamber (2) described in being positioned at one end of the direction of motion dorsad.
7. a kind of high speed extractive quantity hole sowing seeder unit as claimed in claim 3, is characterized in that: described end face (3c) and described in fill distance between kind of band (1) outer surface maximum H be 2～3mm, the arc radius of described end face (3c) is 18～22mm, described length L of filling kind of a tooth (3) is 15～18mm, described width W of filling kind of a tooth (3) is 2.5～4.5mm, be positioned at fill described in same both sides, kind of a chamber (2) described in the distance of filling between kind of a tooth (3) be that D is 5～7mm, described kind of the chamber (2) of filling is shaped as down isosceles trapezoid along the vertical section of the direction of motion, the described length of side of going to the bottom of isosceles trapezoid is 1.5～2.5mm, upper bottom side length is 13.5～14.5mm, angle ε between the Yu Yao limit, bottom of described isosceles trapezoid is 120～150 °, the described width that fills kind of a chamber (2) be positioned at fill described in same both sides, kind of a chamber (2) described in the distance D of filling between kind of a tooth (3) consistent.
8. a kind of high speed extractive quantity hole sowing seeder unit claimed in claim 1, it is characterized in that: in described seeder unit shell (4), one end of corresponding described grain conductor (6) is provided with and described kind of the Hu Zhong mechanism (9) that band (1) matches of filling, described Hu Zhong mechanism (9) comprise arcuate structure protect kind of a support (9a), several protect described in being arranged on kind of a support (9a) protect kind of a belt wheel (9b) and be sleeved on described in protect kind of the band (9c) that protects on kind of a belt wheel (9b), described in protect kind of band (9c) with described in fill kind of a band and contact.
9. a kind of high speed extractive quantity hole sowing seeder unit claimed in claim 1, is characterized in that: the position of filling kind of a chamber (2) in the top inner wall of described seeder unit shell (4) described in correspondence is provided with supernatant kind brush (10).
10. a kind of high speed extractive quantity hole sowing seeder unit claimed in claim 1, is characterized in that: described seeder unit shell (4) bottom is provided with the junction of described grain conductor (6) the lower clear kind brush (11) that fills kind of a chamber (2) towards described.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152088.4U CN203860021U (en) | 2014-03-31 | 2014-03-31 | High-speed precise hole-sowing seed metering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152088.4U CN203860021U (en) | 2014-03-31 | 2014-03-31 | High-speed precise hole-sowing seed metering device |
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| CN203860021U true CN203860021U (en) | 2014-10-08 |
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| CN201420152088.4U Expired - Fee Related CN203860021U (en) | 2014-03-31 | 2014-03-31 | High-speed precise hole-sowing seed metering device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106922263A (en) * | 2017-03-20 | 2017-07-07 | 东北农业大学 | Strength belt type seeding device |
| CN108934328A (en) * | 2018-09-26 | 2018-12-07 | 河南农业大学 | A kind of zonule breeding hole belt type seeding device |
| CN110972638A (en) * | 2019-12-03 | 2020-04-10 | 华南农业大学 | Precise directional seed supply device and method for pneumatic roller seed sowing device |
| CN112913396A (en) * | 2021-02-11 | 2021-06-08 | 西北农林科技大学 | Precision seeding apparatus with track concave |
| CN112930729A (en) * | 2021-02-11 | 2021-06-11 | 西北农林科技大学 | Combined precision seeder |
-
2014
- 2014-03-31 CN CN201420152088.4U patent/CN203860021U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106922263A (en) * | 2017-03-20 | 2017-07-07 | 东北农业大学 | Strength belt type seeding device |
| CN108934328A (en) * | 2018-09-26 | 2018-12-07 | 河南农业大学 | A kind of zonule breeding hole belt type seeding device |
| CN110972638A (en) * | 2019-12-03 | 2020-04-10 | 华南农业大学 | Precise directional seed supply device and method for pneumatic roller seed sowing device |
| CN112913396A (en) * | 2021-02-11 | 2021-06-08 | 西北农林科技大学 | Precision seeding apparatus with track concave |
| CN112930729A (en) * | 2021-02-11 | 2021-06-11 | 西北农林科技大学 | Combined precision seeder |
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