CN203313651U

CN203313651U - Drum-type fine quantity seeding device

Info

Publication number: CN203313651U
Application number: CN2013204257345U
Authority: CN
Inventors: 王新生; 白忠良
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-17
Filing date: 2013-07-17
Publication date: 2013-12-04
Anticipated expiration: 2023-07-17

Abstract

The utility model discloses a drum-type fine quantity seeding device, and relates to seeding machines, in particular to an interval-type quantified seeding machine. The drum-type fine quantity seeding device does not damage seeds and is small in fault. The drum-type fine quantity seeding device comprises a center shaft (1) and a shaft sleeve (2). The shaft sleeve can rotate around the center shaft. A center chain wheel (21), a first shell body (31), a cylindrical peripheral wall (33), a second shell body (32) and a duckbill (4) are fixedly arranged on the shaft sleeve. The drum-type fine quantity seeding device further comprises a plurality of guiding components, a seed wheel assembly, a fixed wheel (6), a roller brush shaft (71), a roller brush shaft chain wheel (72) and roller brushes (73). The roller brush shaft chain wheel is connected with the center chain wheel through a chain. A seed room (61) is arranged inside the fixed wheel. The lower end of the side wall of the seed room is attached to the roller brushes and a seed wheel body (51). A seed discharging opening (62) is further formed in the fixed wheel. A plurality of indent grooves (5121) are formed in the outer circumferential wall of a wheel body portion (512) of the seed wheel body at equal intervals.

Description

The drum-type precision quantitative seed drill

Technical field

The utility model relates to a kind of seeding machinery, particularly relates to the quantitatively machinery of sowing of a kind of compartment.

Background technology

Hill-drop planter is the planting machinery of the seed cavitation being sowed by certain line-spacing and cave distance, and its seeding unit adopted has polytype, mainly contains a wheel spoon formula, finger-clipped air-sucking type, pass formula etc.The seeding machinery that a kind of drum-type is arranged at present, periphery at cylinder arranges duckbilled equally spacedly, carry out seeding by duckbilled, as application number is 200720100562.9, Granted publication number is CN200997763Y, the Granted publication day disclosed a kind of hand-push type seeder of Chinese utility model patent that is on January 2nd, 2008 and application number is 201120288508.8, Granted publication number is on April 4th, 2012 for CN202178950U, Granted publication day the disclosed a kind of duck bill type precision seed metering device of Chinese utility model patent.The seeder of current drum-type, it generally has following defect:

1, be provided with transmission mechanism between its cylinder and kind wheel, the complex structure of transmission mechanism, easily break down;

2, its seeding inaccuracy, hole rate and double-grain rate are high;

3, the size of its kind grain can not accurate adjustment be discharged from;

4, easily hinder and plant in the seeding process;

5, be difficult to adjust spacing in the rows, should be noted that installation direction while reinstalling after dismounting, higher for the specification requirement of installing;

6, the spring fitting that its duckbilled adopts is not firm, and when reality is used, spring easily comes off and loses, and causes the duckbilled cisco unity malfunction;

7, it buries more shallowly, and the duckbilled of employing is less, and after being covered with the soil upper seeding wheel of mulch film, the opening be punctured due to film is little, during seedling early growth, easily is crushed under film and can't get out.

The utility model content

The technical problems to be solved in the utility model is to provide a kind of injuring-free seed, drum-type precision quantitative seed drill that fault is few.

The utility model drum-type precision quantitative seed drill, comprise central shaft, on wherein said central shaft, cover has axle sleeve, axle sleeve can rotate around described central shaft, be fixed with the center sprocket wheel on axle sleeve, one end of axle sleeve is fixedly connected with the first housing, also comprise the second housing, between the second housing and the first housing, by the cylindrical shape perisporium, be fixedly connected with, be provided with to cylindrical shape perisporium equal intervals some duckbilleds hole, be equipped with duckbilled on the cylindrical shape perisporium outside each duckbilled hole, described the first housing, the second housing and cylindrical shape perisporium all coaxially arrange with described central shaft;

Also comprise kind of a wheel assembly, plant wheel assembly and comprise kind of a wheel wheel body, plant the wheel wheel body and comprise wheel axial region and the wheel body mutually coaxially be fixedly connected with, the wheel axial region is enclosed within on described axle sleeve regularly, be provided with to the periphery wall equal intervals of wheel body some nest eye grooves, the setting party of nest eye groove is parallel to the axis with the wheel axial region, and the number of nest eye groove is identical with the number of described duckbilled;

Also comprise the fast pulley be fixedly connected with described central shaft, be connected with roller brush axle on fast pulley, roller brush axle can rotation on fast pulley, be fixed with roller brush axle sprocket wheel and roller brush on roller brush axle, roller brush axle sprocket wheel is connected by chain with described center sprocket wheel, bristle top and the described periphery wall of taking turns body of roller brush offset, be provided with kind of a chamber in fast pulley, plant chamber and be positioned at the top that described kind is taken turns wheel body, plant side wall lower ends and the described roller brush of chamber and plant the wheel wheel body and fit, also be provided with the planting mouth on fast pulley, the planting mouth is positioned at kind of the below of wheel wheel body;

Be fixed with several guiding parts on the madial wall of described cylindrical shape perisporium, the number of guiding part is identical with the number of described duckbilled, and the seed that each guiding part can fall planting mouth place imports each duckbilled hole accordingly.

The utility model drum-type precision quantitative seed drill, wherein said kind of wheel assembly also comprises to be regulated shift fork and regulates silk braid, regulate silk braid and be threaded in described the wheel on axial region, regulate on shift fork and be extended with several key bodies, the number of being healthy and strong is identical with the number of described nest eye groove, described being healthy and strong is positioned at described nest eye groove separately accordingly, when described adjusting silk braid, described, takes turns on axial region while rotating, and regulates silk braid and can drive described being healthy and strong and slide in described nest eye groove.

The utility model drum-type precision quantitative seed drill, wherein said adjusting shift fork is enclosed within on described adjusting silk braid, regulate silk braid and be provided with push pedal, push pedal is provided with compression spring hole, be provided with stage clip in compression spring hole, the two ends of stage clip offset with regulating shift fork and push pedal respectively, regulate on silk braid and also are connected with jump ring, and jump ring is positioned at a side relative with push pedal of regulating shift fork.

The utility model drum-type precision quantitative seed drill, wherein said guiding part comprises ship type main body and two oblique wings of guiding, front end and the top of ship type main body are equipped with fin, one end of two oblique wings of guiding is connected to the tail end both sides of ship type main body, the other end of two oblique wings of guiding fits with described the first housing and the second housing separately towards the front end of described ship type main body, the inside of ship type main body is hollow, the both sides of ship type main body are provided with the seed import in the position be connected with the oblique wing of guiding, and the inherent front end of ship type main body is provided with baffle plate.

The utility model drum-type precision quantitative seed drill, wherein said cylindrical shape perisporium is by five, the arc of six or seven deciles is spliced to form successively, all along the circumferential direction be provided with cannelure on the inner side of described the first housing and the second housing, the dual-side of described arc lays respectively in the cannelure of the cannelure of described the first housing and the second housing, the first housing is provided with 16 arc installing holes, wherein 1 arc installing hole is for sharing installing hole, comprising shared installing hole, interior, there are 5 arc installing holes to be evenly distributed along circumference, comprising shared installing hole, interior, there are 6 arc installing holes to be evenly distributed along circumference, comprising shared installing hole, interior, there are 7 arc installing holes to be evenly distributed along circumference, also be provided with accordingly 16 arc installing holes on described the second housing, all be connected with shank on described each arc in both sides, each shank is inserted in described arc installing hole separately accordingly, between described the first housing and the second housing, be bolted to connection.

The utility model drum-type precision quantitative seed drill, the number of wherein said roller brush axle, roller brush axle sprocket wheel and roller brush is two, two roller brush axles, two roller brush axle sprocket wheels and two rollers brush are symmetrically located at the both sides of described kind wheel wheel body separately, described the first housing is provided with chain and changes handle hole, and chain is changed outside handle hole and is fixed with cover plate by screw.

The utility model drum-type precision quantitative seed drill, be fixed with the secondary brush of planting clearly on wherein said fast pulley, secondary clear kind brush is positioned at the below of described kind wheel wheel body, and the lateral wall of the bristle tips of secondary clear kind brush and described kind wheel wheel body offsets.

The utility model drum-type precision quantitative seed drill, wherein said duckbilled comprises sharp mouth, toe board and the Compress Spring that cross section is triangular in shape, toe board is hinged on sharp mouth, toe board is provided with projection, one end of Compress Spring is enclosed within on described projection, and the other end of Compress Spring is through described arc and be provided with crotch at traversing through end.

The utility model drum-type precision quantitative seed drill, the material of wherein said the first housing, the second housing, arc and fast pulley is metal material, distance between described sharp mouth two side roof parts is less than the distance between sharp mouth two bottom sides, and the height of sharp mouth is not less than 60mm.

The utility model drum-type precision quantitative seed drill, be fixed with kind of a case on wherein said fast pulley, plant case and be provided with out kind of a mouth, and the sidewall of described kind of chamber is provided with seed inlet, and fast pulley is provided with the guiding channel that is communicated with kind of mouth and seed inlet.

The utility model drum-type precision quantitative seed drill difference from prior art is that the housing of the utility model drum-type precision quantitative seed drill directly drives kind of a wheel wheel body by axle sleeve and rotates, between without complicated transmission mechanism, so fault is few, and housing rotates by chain and sprocket wheel band action roller brush while rotating, the roller sweeping is unnecessary seed except nest eye groove, because bristle is flexible, so injuring-free seed.

In the utility model drum-type precision quantitative seed drill, planting wheel assembly also comprises when regulating shift fork and regulating silk braid, can carry out accurate adjustment to the size of nest eye, thereby can reduce the probability that nest eye groove blocks seed or holds two grain seeds, make the hole rate of sowing and double-grain rate lower.

Below in conjunction with accompanying drawing, the utility model drum-type precision quantitative seed drill is described further.

The accompanying drawing explanation

Cutaway view is looked on the right side that Fig. 1 is first embodiment of the utility model drum-type precision quantitative seed drill;

Fig. 2 is that first embodiment of the utility model drum-type precision quantitative seed drill carries out 1/4th stereograms after dissecing;

The half sectional view of facing that Fig. 3 is first embodiment of the utility model drum-type precision quantitative seed drill;

Fig. 4 be first embodiment of the utility model drum-type precision quantitative seed drill omit after duckbilled and cylindrical shape perisporium vertical view cutaway drawing;

Fig. 5 plants the stereogram of wheel assembly in first embodiment of the utility model drum-type precision quantitative seed drill;

Fig. 6 plants the elevational cross-sectional view of wheel assembly in first embodiment of the utility model drum-type precision quantitative seed drill;

The assembling stereogram that Fig. 7 is duckbilled, arc and guiding part in first embodiment of the utility model drum-type precision quantitative seed drill;

The right view that Fig. 8 is Fig. 7;

The elevational cross-sectional view that Fig. 9 is guiding part in first embodiment of the utility model drum-type precision quantitative seed drill;

The left view that Figure 10 is the first housing in first embodiment of the utility model drum-type precision quantitative seed drill;

Cutaway view is looked on the right side that Figure 11 is second embodiment of the utility model drum-type precision quantitative seed drill.

Embodiment

First embodiment of the utility model drum-type precision quantitative seed drill as shown in Figure 1, comprise central shaft 1, on central shaft 1, cover has axle sleeve 2, referring to Fig. 2 and Fig. 3, bearing 22 is installed in the left end of axle sleeve 2, axle sleeve 2 can rotate around central shaft 1, be fixed with center sprocket wheel 21 on axle sleeve 2, the left end of axle sleeve 2 is fixedly connected with the first housing 31, also comprise the second housing 32, between the second housing 32 and the first housing 31, by cylindrical shape perisporium 33, be fixedly connected with, referring to Fig. 1, be provided with to cylindrical shape perisporium 33 equal intervals six duckbilled holes (the duckbilled hole is not shown in the drawings), be equipped with duckbilled 4 on cylindrical shape perisporium 33 outside each duckbilled hole, the first housing 31, the second housing 32 and cylindrical shape perisporium 33 all coaxially arrange with central shaft 1, also comprise kind of a wheel assembly, as shown in Figure 5 and Figure 6, plant wheel assembly and comprise kind of a wheel wheel body 51, regulate shift fork 52 and regulate silk braid 53, plant wheel wheel body 51 and comprise wheel axial region 511 and the wheel body 512 mutually coaxially be fixedly connected with, wheel axial region 511 is enclosed within on axle sleeve 2 regularly, regulating silk braid 53 is threaded on wheel axial region 511, be provided with to the periphery wall equal intervals of wheel body 512 six nest eye grooves 5121, the setting party of nest eye groove 5121 is parallel to the axis with wheel axial region 511, the number of nest eye groove 5121 is identical with the number of duckbilled 4, regulate on shift fork 52 and be extended with six key bodies 521, 521 the number of being healthy and strong is identical with the number of nest eye groove 5121, be healthy and strong and 521 be positioned at accordingly separately nest eye groove 5121, regulating shift fork 52 is enclosed within on adjusting silk braid 53, regulate silk braid 53 and be provided with push pedal 531, push pedal 531 is provided with compression spring hole, be provided with stage clip 54 in compression spring hole, the two ends of stage clip 54 offset with adjusting shift fork 52 and push pedal 531 respectively, regulate on silk braid 53 and also be connected with jump ring 55, jump ring 55 is positioned at a side relative with push pedal 531 of regulating shift fork 52, like this when adjusting silk braid 53 rotates on wheel axial region 511, adjusting silk braid 53 can drive is healthy and strong 521 in the 5121 interior slips of nest eye groove, as shown in Figure 4, also comprise the fast pulley 6 be fixedly connected with central shaft 1, be connected with roller brush axle 71 on fast pulley 6, roller brush axle 71 can rotation on fast pulley 6, be fixed with roller brush axle sprocket wheel 72 and roller brush 73 on roller brush axle 71, the present embodiment central roll brush axle 71, the number of roller brush axle sprocket wheel 72 and roller brush 73 is two, two roller brush axles 71, two roller brush axle sprocket wheels 72 and two roller brushes 73 are symmetrically located at kind of the both sides of wheel wheel body 51 separately, the roller brush axle sprocket wheel 72(that wherein is arranged in rear side is the roller brush axle sprocket wheel 72 on Fig. 1 right side) be connected (chain is not shown in the drawings) with center sprocket wheel 21 by chain, referring to Fig. 1, the bristle top of roller brush 73 offsets with the periphery wall of wheel body 512, be provided with kind of chamber 61 in fast pulley 6, plant chamber 61 and be positioned at kind of the top of wheel wheel body 51, plant side wall lower ends and the roller brush 73 of chamber 61 and plant wheel wheel body 51 and fit, also be provided with planting mouth 62 on fast pulley 6, planting mouth 62 is positioned at kind of the below of wheel wheel body 51, be fixed with six guiding parts on the madial wall of cylindrical shape perisporium 33, the number of guiding part is identical with the number of duckbilled 4, referring to Fig. 7, Fig. 8 and Fig. 9, guiding part comprises ship type main body 81 and two oblique wings 82 of guiding, front end and the top of ship type main body 81 are equipped with fin 811, one end of two oblique wings 82 of guiding is connected to the tail end both sides of ship type main body 81, the other end of two oblique wings 82 of guiding is towards the front end of ship type main body 81 and fit with the first housing 31 and the second housing 32 separately, the inside of ship type main body 81 is hollow, the both sides of ship type main body 81 are provided with seed import 812 in the position be connected with the oblique wing 82 of guiding, ship type main body 81 inherent front ends are provided with baffle plate 813, the seed that each guiding part can fall planting mouth 62 places imports each duckbilled hole accordingly.

At this, once using method and the operation principle of the present embodiment first are described.In use, to the seed of packing in the kind chamber 61 in the present embodiment, keep central shaft 1 not rotate, the present embodiment is placed on the soil that needs sowing, duckbilled contacts with ground, referring to Fig. 1, pulling back central shaft 1(it seems and pull direction to the right from Fig. 1), because duckbilled 4 is relatively-stationary with axle sleeve 2, and axle sleeve 2 is relatively-stationary with planting wheel wheel body 51, while pulling central shaft 1, because duckbilled is subject to the active force on ground, center sprocket wheel 21, plant wheel wheel body 51, the first housing 31, the second housing 32 and cylindrical shape perisporium 33 will synchronously clockwise rotate, and fast pulley 6 is relative with central shaft 1 fixing, so center sprocket wheel 21 will clockwise rotate by roller brush axle sprocket wheel 72 and the roller brush 73 on right side in chain-driving Fig. 1.The seed of planting in chamber 61 enters in nest eye groove 5121, follow clockwise rotating of kind of wheel wheel body 51 and roller brush 73, in each nest eye groove 5121, only have a seed by with plant the contact point between wheel wheel body 51 and roller brush 73, remaining seed is swept back and is planted in chamber 61 by the roller on right side in Fig. 1 brush 73.Seed, because Action of Gravity Field falls from falling down and pass through planting mouth 62 in nest eye groove 5121, enters in cylindrical shape perisporium 33 afterwards, and when cylindrical shape perisporium 33 rotates, seed is guided component lead and enters duckbilled by the duckbilled hole, thereby discharges from duckbilled.Nest eye groove, guiding part and duckbilled are corresponding one by one, and each duckbilled is once discharged a seed.In the present embodiment, the process of guiding part guiding seed is such: referring to Fig. 1 and Fig. 7, seed is from planting mouth 62 falls, if drop on ship type main body 81, can fall on the wherein one side from fin 811 both sides due to the fin 811 of ship type main body 81 upper tops, if drop on the front portion of ship type main body 81, when cylindrical shape perisporium 33 clockwise rotates, seed can roll down on the wherein one side from fin 811 both sides due to the fin 811 of ship type main body 81 upper foreparts, so final seed all can be rolled between the sidewall of the oblique wing 82 of guiding and ship type main body 81, and due to two oblique wings 82 of guiding towards the front end of ship type main body 81 and fit with the first housing 31 and the second housing 32 separately, two front extreme directions apart from along ship type main body 81 of guiding between oblique wing 82 are to become gradually large, referring to Fig. 1, follow the rotation of cylindrical shape perisporium 33, seed can be entered in ship type main body 81 by seed import 812, along with cylindrical shape perisporium 33 is rotated further, the angle of guiding part is in continuous variation, guiding part is also clockwise rotating, like this seed due to the effect meeting of gravity in the 81 interior rollings of ship type main body, be rolled into top from the tail end of ship type main body 81 inside and be rolled into again interior forward end, by baffle plate 813, stopped, thereby and roll into the duckbilled hole from baffle plate 813 under the effect at gravity enter duckbilled when ship type main body 81 is rotated further.

Referring to Fig. 5 and Fig. 6, in the present embodiment, can rotate and regulate silk braid 53, adjusting silk braid 53 moves and drives on wheel axial region 511 is healthy and strong 521 in the 5121 interior slips of nest eye groove, thereby adjust in nest eye groove 5121 length of 521 fillings of not being healthy and strong, and then the size of adaptation seed, so the present embodiment can make the nest eye size of holding seed more correspond to actual needs, but, as a kind of deteriorated embodiment, can design and with the nest eye groove of fixed dimension, not use the adjusting shift fork to be regulated, can solve injuring-free seed equally like this, the technical problem that fault is few.The guiding part used in the present embodiment can make seed can not shelve or rest on somewhere when cylindrical shape perisporium 33 rotates, thereby make seed to be discharged from smoothly, improved the reliability of guiding, because the size of nest eye is adjustable, add the guiding of seed more reliably, make the present embodiment occur that in use hole or two s' probability reduces greatly.The design of the baffle plate 813 in the present embodiment in ship type main body 81 is in order to prevent that seed is stuck in the head in ship type main body 81.Because the present embodiment adopts the kind amount of filling in roller brush 73 restriction nest eye grooves, so injuring-free seed.Because in the present embodiment, directly by duckbilled, the first housing through being connected and axle sleeve drive kind of a wheel wheel body rotation, there is no complicated transmission system, simple structure, so fault is still less.

Below further illustrate the improvement details in the present embodiment.Referring to Fig. 7, cylindrical shape perisporium 33 in the present embodiment is spliced to form successively by the arc 331 of six deciles, all along the circumferential direction be provided with cannelure (cannelure is not shown in the drawings) on the inner side of the first housing 31 and the second housing 32, the dual-side of arc 331 lays respectively in the cannelure of the cannelure of the first housing 31 and the second housing 32, such the first housing 31 and the second housing 32 have just clamped each arc 331, referring to Figure 10, the first housing 31 is provided with 16 arc installing holes 311, wherein 1 arc installing hole 311 is for sharing installing hole, comprising shared installing hole, interior, there are 5 arc installing holes 311 to be evenly distributed along circumference, comprising shared installing hole, interior, there are 6 arc installing holes 311 to be evenly distributed along circumference, comprising shared installing hole, interior, there are 7 arc installing holes 311 to be evenly distributed (due to five deciles along circumference, six deciles, the seven uniform holes of three kinds of deciles all share a hole, so always total 5+6+7-2 of arc installing hole, 16), also be provided with accordingly 16 arc installing holes on the second housing 32, all be connected with shank (shank is not shown in the drawings) on each arc 331 in both sides, each shank is inserted in arc installing hole 311 separately accordingly, in the present embodiment, because arc 331 is six, so the shank of six arcs is to be inserted in the uniform arc installing hole of six deciles, for arc is gripped, also be provided with six bolts hole on the first housing 31 and the second housing 32, between the first housing 31 and the second housing 32, be bolted to connection.Such benefit is, when needs conversion spacing in the rows, arc can be replaced by the arc of five deciles or seven deciles, a duckbilled and guiding part are installed on each arc separately and are formed a modular assembly, and will plant the wheel assembly correspondence and be replaced by the kind wheel assembly with five or seven nest eye grooves, convenient while ressembling changing parts like this.

In addition, as shown in figure 10, the first housing 31 in the present embodiment is provided with chain and changes handle hole 312, and chain is changed outside handle hole 312 and is fixed with cover plate (cover plate is not shown in the drawings) by screw.Such benefit is needn't worry whether the installation direction of duckbilled is installed correctly when assembling, because the present embodiment has adopted two roller brushes 73, even the installation direction of duckbilled is incorrect, also can be after unloading lower cover, chain is taken off from connected roller brush axle sprocket wheel, thereby chain is connected on another roller brush axle sprocket wheel and makes its normal operation, needn't reinstall duckbilled like this, the specification requirement of installing like this is lower, more easily corrigendum during loading error.

As shown in Figure 1, be fixed with the secondary clear brush 9 of planting in the present embodiment on fast pulley 6, the secondary clear brush 9 of planting is positioned at kind of the below of wheel wheel body 51, and secondary clear bristle tips of planting brush 9 offsets with the lateral wall of planting wheel wheel body 51.If seed is stuck in nest eye groove, the secondary clear brush 9 of planting can be swept seed timely in nest eye groove, like this for follow-up seeding process, can reduce the probability in hole, if, because this nest eye groove blocks seed always, follow-up sowing just there will be hole.

As shown in Figure 8, in the present embodiment, duckbilled 4 comprises the sharp mouth 41 that cross section is triangular in shape, toe board 42 and Compress Spring 43, toe board 42 is hinged on sharp mouth 41, the sharp mouth of duckbilled, toe board and Compress Spring be configured to prior art, the operation principle of duckbilled is such: when the toe board of duckbilled is not in contact with the ground, Compress Spring withstands toe board makes sharp mouth be sealed by toe board, seed can not drop from duckbilled, be accompanied by the rotation of cylindrical shape perisporium, be positioned at the duckbilled of below and insert out on the ground a kind cave, its toe board kiss the earth also compresses Compress Spring, between toe board and sharp mouth, be opened simultaneously, seed falls in this kind of cave, be accompanied by afterwards the continuation rotation of cylindrical shape perisporium, toe board and ground disengage, Compress Spring makes sharp mouth be sealed by toe board again.In the present embodiment for easily falling the problem of spring on existing duckbilled, toe board 42 is provided with projection 421, one end of Compress Spring 43 is enclosed within on projection 421, the other end of Compress Spring 43 is through arc 331 and be provided with crotch 431 at traversing through end, like this due to the existence of crotch 431 and projection 421, Compress Spring 43 can not come off from duckbilled, has increased the functional reliability of duckbilled.

In the present embodiment, the material of the first housing 31, the second housing 32, arc 331 and fast pulley 6 is iron, make like this weight of the present embodiment heavier, intensity is higher, duckbilled buries darker, like this when the mulch film upper seeding wheel, because the bury hole that more deeply makes mulch film be punctured out by sharp mouth of duckbilled is also larger, so the rear seedling of emerging is difficult for being blocked by mulch film, more easily get out mulch film.Referring to Fig. 3, distance between 41 liang of side roof parts of point mouth is less than the distance between sharp mouth 41 two bottom sides, and the height of sharp mouth 41 is not less than 60mm, so sharp mouth 41 is certain taper, and size is larger, so sharp mouth is more convenient in deep soil, according to aforesaid reason, can make seedling after the mulch film upper seeding wheel more easily get out mulch film equally like this.

In the present embodiment, as an annex, be fixed with kind of case 10 on fast pulley 6, plant case 10 and be provided with out kind of mouth 101, the sidewall of described kind of chamber 61 is provided with seed inlet 611, and fast pulley 6 is provided with the guiding channel 63 that is communicated with kind of mouth 101 and seed inlet 611, can supplement at any time easily seed like this.

The present embodiment has adopted two roller brushes, but, in order to solve the technical problems to be solved in the utility model, the number of roller brush can be one, and as shown in figure 11, its operation principle is appreciated that and does not repeat them here according to the explanation of front.Only, like this, when being installed, duckbilled just should be noted that installation direction.

Above-described embodiment is described preferred embodiment of the present utility model; not scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.

Claims

1. a drum-type precision quantitative seed drill, comprise central shaft (1), it is characterized in that: the upper cover of described central shaft (1) has axle sleeve (2), axle sleeve (2) can rotate around described central shaft (1), be fixed with center sprocket wheel (21) on axle sleeve (2), one end of axle sleeve (2) is fixedly connected with the first housing (31), also comprise the second housing (32), between the second housing (32) and the first housing (31), by cylindrical shape perisporium (33), be fixedly connected with, be provided with to cylindrical shape perisporium (33) equal intervals some duckbilleds hole, the upper duckbilled (4) that is equipped with outside each duckbilled hole of cylindrical shape perisporium (33), described the first housing (31), the second housing (32) and cylindrical shape perisporium (33) all with the coaxial setting of described central shaft (1),

Also comprise kind of a wheel assembly, plant wheel assembly and comprise kind of a wheel wheel body (51), plant wheel wheel body (51) and comprise wheel axial region (511) and the wheel body (512) mutually coaxially be fixedly connected with, wheel axial region (511) is enclosed within on described axle sleeve (2) regularly, be provided with to the periphery wall equal intervals of wheel body (512) some nest eye grooves (5121), the setting party of nest eye groove (5121) is parallel to the axis with wheel axial region (511), and the number of nest eye groove (5121) is identical with the number of described duckbilled (4);

Also comprise the fast pulley (6) be fixedly connected with described central shaft (1), be connected with roller brush axle (71) on fast pulley (6), roller brush axle (71) can be in the upper rotation of fast pulley (6), be fixed with roller brush axle sprocket wheel (72) and roller brush (73) on roller brush axle (71), roller brush axle sprocket wheel (72) is connected by chain with described center sprocket wheel (21), bristle top and the described periphery wall of taking turns body (512) of roller brush (73) offset, be provided with kind of a chamber (61) in fast pulley (6), plant chamber (61) and be positioned at the top that described kind is taken turns wheel body (51), plant side wall lower ends and the described roller brush (73) of chamber (61) and plant wheel wheel body (51) and fit, also be provided with planting mouth (62) on fast pulley (6), planting mouth (62) is positioned at kind of the below of wheel wheel body (51),

Be fixed with several guiding parts on the madial wall of described cylindrical shape perisporium (33), the number of guiding part is identical with the number of described duckbilled (4), and the seed that each guiding part can be located planting mouth (62) fall imports each duckbilled hole accordingly.

2. drum-type precision quantitative seed drill according to claim 1, it is characterized in that: described kind of wheel assembly also comprises to be regulated shift fork (52) and regulates silk braid (53), regulate silk braid (53) and be threaded in described the wheel on axial region (511), regulate on shift fork (52) and be extended with several key bodies (521), the number of (521) of being healthy and strong is identical with the number of described nest eye groove (5121), described being healthy and strong (521) is positioned at described nest eye groove (5121) separately accordingly, when described adjusting silk braid (53) described while taking turns that axial region (511) is upper to rotate, adjusting silk braid (53) can drive described being healthy and strong (521) and slide in described nest eye groove (5121).

3. drum-type precision quantitative seed drill according to claim 2, it is characterized in that: described adjusting shift fork (52) is enclosed within on described adjusting silk braid (53), regulate silk braid (53) and be provided with push pedal (531), push pedal (531) is provided with compression spring hole, be provided with stage clip (54) in compression spring hole, the two ends of stage clip (54) offset with adjusting shift fork (52) and push pedal (531) respectively, regulate on silk braid (53) and also be connected with jump ring (55), jump ring (55) is positioned at a side relative with push pedal (531) of regulating shift fork (52).

4. drum-type precision quantitative seed drill according to claim 3, it is characterized in that: described guiding part comprises ship type main body (81) and two guiding oblique wings (82), the front end of ship type main body (81) and top are equipped with fin (811), one end of two oblique wings of guiding (82) is connected to the tail end both sides of ship type main body (81), the other end of two oblique wings of guiding (82) is towards the front end of described ship type main body (81) and fit with described the first housing (31) and the second housing (32) separately, the inside of ship type main body (81) is hollow, the both sides of ship type main body (81) are provided with seed import (812) in the position be connected with the oblique wing of guiding (82), the inherent front end of ship type main body (81) is provided with baffle plate (813).

5. drum-type precision quantitative seed drill according to claim 4, it is characterized in that: described cylindrical shape perisporium (33) is by five, the arc of six or seven deciles (331) is spliced to form successively, all along the circumferential direction be provided with cannelure on the inner side of described the first housing (31) and the second housing (32), the dual-side of described arc (331) lays respectively in the cannelure of the cannelure of described the first housing (31) and the second housing (32), the first housing (31) is provided with 16 arc installing holes (311), wherein 1 arc installing hole (311) is for sharing installing hole, comprising shared installing hole, interior, there are 5 arc installing holes (311) to be evenly distributed along circumference, comprising shared installing hole, interior, there are 6 arc installing holes (311) to be evenly distributed along circumference, comprising shared installing hole, interior, there are 7 arc installing holes (311) to be evenly distributed along circumference, also be provided with accordingly 16 arc installing holes on described the second housing (32), the upper shank that all is connected with in both sides of described each arc (331), each shank is inserted in described arc installing hole (311) separately accordingly, between described the first housing (31) and the second housing (32), be bolted to connection.

6. drum-type precision quantitative seed drill according to claim 5, it is characterized in that: the number of described roller brush axle (71), roller brush axle sprocket wheel (72) and roller brush (73) is two, two roller brush axles (71), two roller brush axle sprocket wheels (72) and two rollers brushes (73) are symmetrically located at the both sides of described kind wheel wheel body (51) separately, described the first housing (31) is provided with chain and changes handle hole (312), and chain is changed outside handle hole (312) and is fixed with cover plate by screw.

7. drum-type precision quantitative seed drill according to claim 6, it is characterized in that: be fixed with the secondary clear brush (9) of planting on described fast pulley (6), secondary clear kind brush (9) is positioned at the below of described kind wheel wheel body (51), and the lateral wall of the bristle tips of secondary clear kind brush (9) and described kind wheel wheel body (51) offsets.

8. drum-type precision quantitative seed drill according to claim 7, it is characterized in that: described duckbilled (4) comprises cross section sharp mouth (41) triangular in shape, toe board (42) and Compress Spring (43), toe board (42) is hinged on sharp mouth (41), toe board (42) is provided with projection (421), it is upper that one end of Compress Spring (43) is enclosed within described projection (421), and the other end of Compress Spring (43) is through described arc (331) and be provided with crotch (431) at traversing through end.

9. drum-type precision quantitative seed drill according to claim 8, it is characterized in that: the material of described the first housing (31), the second housing (32), arc (331) and fast pulley (6) is metal material, distance between described sharp mouth (41) two side roof parts is less than the distance between sharp mouth (41) two bottom sides, and the height of sharp mouth (41) is not less than 60mm.

10. drum-type precision quantitative seed drill according to claim 9, it is characterized in that: be fixed with kind of a case (10) on described fast pulley (6), plant case (10) and be provided with out kind of a mouth (101), the sidewall of described kind of chamber (61) is provided with seed inlet (611), and fast pulley (6) is provided with the guiding channel (63) that is communicated with kind of a mouth (101) and seed inlet (611).