CN218006978U - Rice hill-drop seed sowing device - Google Patents

Abstract

The utility model relates to a rice bunch planting seed metering ware, which comprises a housing, it is equipped with the seed metering roller to rotate on the casing, it inhales the kind of a hole unit to be provided with on the seed metering roller, every inhales kind of a hole unit and all includes a plurality of kinds of inhaling punch combination, the right-hand member of seed metering roller is provided with the branch air disk, be provided with the air guide passageway in the seed metering roller, the air guide passageway has the passway that is located seed metering roller right-hand member face, it inhales kind of district to be provided with along circumference order on the branch air disk, it takes kind of district, seed metering district and idle stroke district, it is provided with the arc air guide passageway that extends along circumference to inhale kind of district and take kind of district, the seed metering district is provided with the malleation gas pocket that is used for being connected with the malleation source, the seed metering roller rotates the in-process, each air guide passageway is through arc air guide passageway in order, malleation gas pocket and idle stroke district, be provided with the roller brush that the axis extends along controlling the direction on the casing, the roller brush has the brush hair that is used for cleaning the kind of inhaling kind of punch combination that the idle stroke district corresponds. The utility model provides an among the prior art impurity can block up to inhale the kind of a hole and lead to seed metering ware to throw kind of a precision poor technical problem.

Description

Rice hill-drop seed sowing device

Technical Field

The utility model relates to an agricultural machine for rice seeding especially relates to a rice bunch planting seed metering ware.

Background

The rice is one of three staple grains in China, and has great strategic value. The rice planting mode is divided into two modes of seedling raising and transplanting and mechanical direct seeding, the precision hole direct seeding technology is the most main simple rice cultivation technology, and the key core component of the rice direct seeding machine is a seed sowing device. China has various rice varieties and forms, and the difference of the seeding amount is large due to the difference of varieties, regions, weather, seeding time and the like, so that the precision seeding is most difficult to realize in various large grain crops.

The seed metering devices can be classified into mechanical type, vibration type and pneumatic type according to the industrial principle, wherein the pneumatic type seed metering devices have the advantages of higher usability and less damage to seeds compared with other seed metering devices, and therefore, the pneumatic type seed metering devices become the main research direction of scholars at home and abroad.

The existing pneumatic seed sowing device comprises a pneumatic auxiliary wheel structure, a pneumatic connector, a hole wheel structure, a supporting main shaft and a gear piece, wherein the pneumatic auxiliary wheel structure is contained in the hole wheel structure and comprises a pneumatic auxiliary wheel and a pneumatic auxiliary wheel end cover, the pneumatic auxiliary wheel is internally divided into a positive pressure air chamber and a negative pressure air chamber, a vent hole is formed in the wheel wall of the positive pressure air chamber, the pneumatic auxiliary wheel end cover is used for plugging the positive pressure air chamber and the negative pressure air chamber according to the end face of the other side of the pneumatic auxiliary wheel, the hole wheel structure comprises a hole wheel inner wheel and a hole wheel outer wheel, and a seed suction hole is formed in the hole wheel inner wheel.

The basic working principle is that in the rotation process of the inner wheel of the hole wheel, an air passage connected with the seed suction hole can sequentially pass through the negative pressure air chamber and the positive pressure air chamber, the seed suction hole sucks the rice seeds when passing through the negative pressure air chamber, and then the seed suction hole discharges the rice seeds when passing through the positive pressure air chamber, so that the precise seeding is realized.

The existing pneumatic seed sowing device has the problems that: 1. the rice seeds often contain impurities such as sandy soil, the impurities can cause the blockage of seed sucking holes, the normal seed sucking of the seed sucking holes is influenced, the seed throwing precision of the seed sowing device is poor, in addition, redundant rice seeds are easy to be adsorbed on the periphery of an outer wheel of a hole wheel, and the seed throwing precision of the rice seeds is poor; 2. the surface of the rice seed is provided with fluff in a spindle shape, and the seeds must break waist and expose white in the precision seeding of hybrid rice, so that the fluidity of the rice seed in a seed box is poorer, and the adsorption of the rice seed on a seed sucking hole is influenced; 3. the rice seed sucking wheel is characterized in that a gourd-shaped hole is formed in the outer wheel of the hole wheel, the depth of the hole is large, rice seeds are easily adsorbed in a hole groove of the hole wheel in a concentrated mode instead of being adsorbed in the hole wheel one by one when the hole sucking wheel is under negative pressure, and the technical problem of poor seed throwing precision can still be caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rice bunch planting seed metering ware to impurity can block up the seed suction hole and lead to the seed metering ware to throw the technical problem that kind of precision is poor among the solution prior art.

In order to solve the technical problem, the utility model discloses in a rice bunch planting seed metering ware's technical scheme as follows:

a rice hole sowing seed metering device comprises a shell, wherein a seed metering roller with a rotation axis extending along the left and right directions is rotatably assembled on the shell, one or more seed sucking hole units arranged at intervals along the left and right directions are arranged on the seed metering roller, each seed sucking hole unit comprises a plurality of seed sucking hole groups arranged at intervals along the circumferential direction, an air distribution disc is arranged at the right end of the seed metering roller, an air guide channel connected with the corresponding seed sucking hole groups is arranged in the seed metering roller, the air guide channel is provided with a channel port positioned on the right end face of the seed metering roller, seed sucking zones, seed carrying zones, seed guiding zones and idle stroke zones are sequentially arranged on the air distribution disc along the circumferential direction, the seed sucking zones and the seed carrying zones are provided with arc air guide channels extending along the circumferential direction and used for being connected with a negative pressure source, the positive pressure air holes used for being connected with the positive pressure seed metering source are arranged in the seed metering roller, each air guide channel sequentially passes through the arc air guide channels, the positive pressure air holes and the idle stroke zones, a roller brush extending along the left and right directions is arranged on the shell, and right directions is provided with brush bristles used for cleaning the seed sucking hole groups corresponding to the idle stroke zones.

Further, rice bunch planting seed metering ware still is including being located the seed case of roller brush upside, the seed case bottom is provided with out the mouth, and the casing includes the roller brush installing support, and the roller brush is installed on the roller brush installing support, forms uncovered miscellaneous space of arranging forward between roller brush installing support and the seed case bottom, and in the left and right sides direction, the miscellaneous space of arranging corresponds with the idle stroke district that divides the gas dish.

Further, the seed case includes seed case left side board, seed case right side board, seed case front side board and seed case posterior lateral plate, seed case still includes seed case bottom plate and seed case baffle, the slope is gradually extended down after to before the seed case baffle is from back, the slope is gradually extended down after to before the seed case bottom plate is from before, the seed case baffle is located the upside of seed case bottom plate, it passes through the passageway to have the seed between the bottom of seed case baffle and the seed case bottom plate, it is terminal that the mouth of a plant is located the direction stroke of seed case bottom plate, the upside of seed case baffle is provided with the defeated kind of roller that the axis of rotation extends along the left and right directions, defeated kind of clearance has between defeated kind of roller and the seed case baffle, the spiral helicine defeated kind of roller groove that multichannel was arranged along left and right directions order is seted up to the periphery of defeated kind of roller.

Furthermore, on the cross section of the seed conveying roller groove, the side wall of the roller way of the seed conveying roller groove is a straight line, and the bottom of the roller way of the seed conveying roller groove is an arc line.

Furthermore, the rear lower side between the left side plate and the right side plate of the seed box is of an open structure, the upper side of the front end of the seed sowing roller is located in the open structure, the upper side of the open structure in the seed box is provided with a wind nozzle, the bottom of the wind nozzle is provided with an air nozzle blowing port facing the wind nozzle of the seed conveying roller, and the air nozzle blowing port is used for blowing the upper side of the front end of the seed sowing roller in a tangential direction so as to blow rice seeds outside the seed sucking hole group at the periphery of the seed sowing roller to the seed conveying roller.

Furthermore, case inner chamber upper end is provided with from the back to preceding air nozzle mounting panel that extends of slope down gradually, and the air nozzle is installed in the downside of air nozzle mounting panel, forms the air nozzle installation space that does not have the rice seed between air nozzle mounting panel and the case posterior lateral plate.

Further, the casing rear side is provided with protects kind of a device, protect kind of a device including protecting the area support with protect the area, protect the area around three axis that is triangular distribution along the axle subassembly of controlling the direction extension, the axle subassembly is including installing installation axle and the epaxial axle sleeve of rotation assembly in installation that installs on protecting the area support, protect area and axle sleeve contact cooperation, the protect area of front side and the rear end roll surface contact cooperation of seed metering roller, in controlling the direction, with seed metering roller contact complex protect the area part and the gas distribution dish with take kind of a district to correspond.

Furthermore, the periphery of the shaft sleeve is provided with a plurality of annular anti-skidding grooves which are axially arranged along the shaft sleeve at intervals, and the inner side of the seed protecting band is provided with an anti-skidding boss matched with the corresponding anti-skidding grooves.

Further, the seed metering roller includes interior roller and the cover is located the outer roller that can follow circumference adjustment installation angle relatively of interior roller periphery, inhales kind punch combination and air guide channel and sets up on interior roller, and outer roller is the sleeve structure, offers the regulation hole that corresponds to being provided with inhaling the punch combination on the cover barrel wall of outer roller.

Further, the seed suction hole group comprises 2 to 4 pairs of seed suction holes which are arranged at intervals along the circumferential direction, each pair of seed suction holes comprises two seed suction holes which are arranged at intervals along the left and right direction, and 1 to 3 pairs of seed suction holes can be blocked when the outer roller rotates relative to the inner roller for adjustment.

The utility model has the advantages that: when the seed roller rotates, the passage ports corresponding to the various seed sucking hole groups sequentially pass through the seed sucking area of the gas distribution disc, the seed carrying area, the seed discharging area and the idle space area, wherein the seed sucking area and the seed carrying area are in a positive pressure environment, the seed discharging area is in a negative pressure environment, when the passage ports pass through the seed sucking area, the rice seeds are sucked to the seed sucking holes of the seed sucking hole groups and then pass through the seed carrying area, when the passage ports rotate to the seed discharging area, the rice seeds can be smoothly discharged from the seed sucking holes under the positive pressure effect, then the seed sucking hole groups rotate to the idle space area, at the moment, the seed sucking holes of the seed sucking hole groups are in a normal pressure state, the brush hair of the roller brush can smoothly clear up the impurities of the seed sucking holes, then the seed sucking holes continue to rotate to the seed sucking area, and a new round of seed sucking operation is started.

As a further technical effect of the present invention: along with the rotation of defeated kind of roller, the rice seed of defeated kind of roller upside is carried to defeated kind of clearance by mechanical along spiral helicine defeated kind of roller groove in the seed case, then along the seed case bottom landing to the seed outlet position of slope, is inhaled the seed hole and absorbs, the utility model discloses well rice seed relies on the rotation of defeated kind of roller, and mechanical feeding guarantees that rice seed has sufficient mobility in seed case. By changing the rotation speed of the seed feed roller, the supply speed of the rice seeds can be changed.

Furthermore, if redundant rice seeds are adhered to the outer roller surface of the seed sowing roller, air is blown towards the outer roller surface of the seed sowing roller through the air nozzle in a tangential direction, so that the problem that the precise seed sowing of the rice seeds is influenced is avoided, and meanwhile, the blown rice seeds are continuously conveyed by the seed conveying roller normally.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to like or corresponding parts and in which:

FIG. 1 is a schematic structural view of an embodiment of a rice bunch planting seed sowing device of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 2;

FIG. 4 is an exploded view of the seed roller of FIG. 1;

FIG. 5 is a schematic view of the combination of the seed feed roller and the seed box of FIG. 1;

FIG. 6 is a schematic structural view of the seed protection device of FIG. 1;

FIG. 7 is a schematic view of the mounting shaft of the seed guard engaging the shaft sleeve in this embodiment;

FIG. 8 is a schematic view of the seed roller of FIG. 1;

FIG. 9 is a perspective view of FIG. 8;

FIG. 10 is a schematic view of the structure of the tuyere of FIG. 1;

FIG. 11 is a schematic view of the construction of the gas distribution tray of FIG. 1;

FIG. 12 is a schematic view of the structure of the seed box of FIG. 1;

description of the reference numerals: 1. a housing; 2. a seed protection device; 3. a top cover; 4. a seed box; 5. a seed conveying roller chain wheel; 6. roller brushing; 7. a roller brush shaft sprocket; 8. a seed tube; 9. a tuyere mounting plate; 10. a seed conveying roller; 11. an outer roller; 12. an adjustment hole; 13. an inner roll; 14. seed sucking hole group; 15. a front side plate of the seed box; 16. a rear side plate of the seed box; 17. a tuyere; 18. a blast nozzle blowing port; 19. a box partition plate; 20. a seed conveying roller groove; 21. seed conveying gaps; 22. a box bottom plate; 23. discharging; 24. a trash space; 25. a roller brush mounting bracket; 26. an air guide channel; 27. protecting the seed band; 28. installing a shaft; 29. a shaft sleeve; 30. a gas distribution plate; 31. a waist-shaped hole; 32. positioning holes; 33. positioning a flange plate; 34. adjusting the flange plate; 35. a return spring; 36. a seed outlet clapboard; 37. an open structure; 38. a protective belt bracket; 39. the side wall of the seed conveying roller groove; 40. the bottom wall of the seed conveying roller groove; 41. a tuyere main air duct; 42. a seed sucking area; 43. a seed carrying area; 44. a seed metering area; 45. a lost motion zone; 46. an arc-shaped air guide channel; 47. a positive pressure vent; 48. negative pressure air holes; 49. the seeds pass through the channel.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The embodiment of the rice hole-sowing seed-metering device in the utility model is shown in figures 1 to 12:

the seed sowing device comprises a machine shell 1, wherein a seed box 4 is arranged on the machine shell 1, a seed protection device 2 is arranged on the machine shell at the rear side of the seed box, and a seed sowing roller with a rotation axis extending along the left-right direction is rotatably assembled on the machine shell.

This embodiment kind, the roller bell includes interior roller 13 and outer roller 11, and outer roller 11 covers and locates interior roller 13 periphery, and outer roller is the sleeve structure, is provided with four on the interior roller and follows the hole group 14 of inhaling that the direction interval set up about, and every kind of hole group 14 of inhaling that all includes eight edge circumference interval arrangement of inhaling kind of hole group is inhaled to every kind of hole group 14 of inhaling all includes three pairs of hole groups of inhaling along circumference interval arrangement, and every pair of hole group of inhaling all includes two along controlling the direction interval arrangement inhale kind of hole.

The sleeve wall of the outer roller is provided with adjusting holes 12 which are arranged corresponding to the seed sucking hole groups, and the mounting angle of the inner roller relative to the outer roller can be adjusted through an angle adjusting mechanism, so that when the mounting angle of the outer roller relative to the inner roller is adjusted, the following functions can be realized, 1, six seed sucking holes of the seed sucking hole groups are completely exposed in the adjusting holes, at the moment, six, namely three, seed sucking holes can work simultaneously, each seed sucking hole adsorbs one rice seed, and six rice seeds can be adsorbed and sown at one time; 2. the outer roller shields the two seed suction holes, and at the moment, four seed suction hole groups, namely two pairs of seed suction holes, can work simultaneously, so that six rice seeds can be adsorbed at one time; 3. the outer roller shields four seed sucking holes, namely two pairs of seed sucking holes, and at the moment, two seed sucking holes in the seed sucking hole group work simultaneously, so that two rice seeds can be adsorbed at one time. Namely, the utility model discloses in, through the relative rotation adjustment of outer roller, interior roller, can realize the seeding rate regulation of 2~6 grains.

The utility model provides an angle adjusting mechanism includes top cap 3 that sets up along left and right directions order, locating flange 33, reset spring 35 and adjusting flange 34, be provided with waist shape hole 31 and a plurality of locating hole 32 on the top cap, locating flange is last be provided with be used for with correspond two locating hole location fit's locating pin, locating flange, reset spring and adjusting flange are located the hole of inner roll, reset spring 35 top-mounted is between locating flange 33 and adjusting flange 34, locating flange 33, adjusting flange 34 and inner roll 13 stall connection, top cap 3 is fixed in outer roller 11, when locating pin and locating hole 32 location plug-in, the angle between inner roll, the outer roller can not be adjusted, the inner roll, the outer roller is fixed relatively, under power unit drive, the inner roll, the outer roller can rotate together; when the seed absorbing number needs to be adjusted, a tool penetrates through the kidney-shaped hole 31 to press the positioning flange plate 33, so that the positioning pin is separated from the positioning hole, then the tool drives the positioning flange plate, the adjusting flange plate and the inner roller to rotate relative to the outer roller, the tool is pulled out after the positioning flange plate, the adjusting flange plate and the inner roller rotate relative to the outer roller, and the positioning pin is inserted into the other positioning hole 32 under the action of a return spring, so that the adjustment of the relative angle between the inner roller and the outer roller is realized. The angle adjustment mechanism belongs to the prior art and is not described in detail here. The thickness of the outer roller is as thin as possible under the condition that the strength requirement is met, so that rice seeds are prevented from being adsorbed in the adjusting holes.

The right end 30 of the seed sowing roller is provided with a gas distribution disc, and an air guide channel 26 connected with a corresponding seed suction hole group is arranged in the inner roller.

The air guide channel has a channel opening on the right end face of the inner roller, the air distribution plate 30 is fixed on the machine shell, and a seed suction area 41, a seed carrying area 46, a seed discharging area 43 and an idle stroke area 44 are sequentially arranged on the air distribution plate along the circumferential direction, and in the embodiment, each area is respectively expressed by each broken line sector area in fig. 11. The seed suction area and the seed carrying area are provided with arc-shaped air guide channels 46 which extend along the circumferential direction and are used for being connected with a negative pressure source, and in the embodiment, the air distribution disc is provided with negative pressure air holes 48 used for connecting the negative pressure source and the arc-shaped air guide channels. The seed sowing area 43 is provided with a positive pressure air hole 47 connected with a positive pressure source, and the air distribution disc corresponding to the idle stroke area is not provided with an air hole structure. In the rotation process of the seed roller, the channel openings of the air guide channels sequentially pass through the arc air guide channel 46, the positive pressure air hole 47 and the idle stroke area 44. The machine shell is provided with a roller brush with the axis extending along the left-right direction, and the roller brush 6 is provided with brush hair used for cleaning seed suction holes of the seed suction hole group corresponding to the idle stroke area.

Seed case 4 is located the upside of roller brush, and the seed case bottom is provided with out kind of a mouth 23, and the casing includes roller brush installing support 25, and the roller brush installing support is a horizontal plate structure, and roller brush 6 is installed on the roller brush installing support, forms uncovered preceding trash removal space 24 between roller brush installing support 25 and the seed case bottom, and in the left right direction, the trash removal space corresponds with the idle running district that divides the gas dish.

Seed case includes seed case left side board, seed case right side board, 15 and seed case posterior lateral plate 16 before the seed case, seed case still includes seed case bottom plate 22 and seed case baffle 19, seed case baffle 19 extends from back to preceding slope down gradually, seed case bottom plate 22 extends from preceding to back slope down gradually, seed case baffle is located the upside of seed case bottom plate, it passes through passageway 49 to have the seed between the bottom of seed case baffle and the seed case bottom plate, seed outlet 23 is located the guide stroke end of seed case bottom plate, the upside of seed case baffle is provided with rotation axis along the defeated kind of roller 10 that left right direction extends, defeated kind of clearance has between defeated kind of roller and the seed case baffle, the spiral helicine defeated kind of roller groove 20 that multichannel was arranged along left right direction order is seted up to the periphery of defeated kind of roller. When the rice seed sowing device is used, the seed conveying roller rotates clockwise in the direction of the figure 3, and the seed conveying roller groove carries rice seeds on the upper side to the seed box bottom plate on the lower side through the seed box partition plate.

On the cross section of the seed conveying roller groove, the side wall of the roller way of the seed conveying roller groove is a straight line, and the bottom of the roller way of the seed conveying roller groove is an arc line.

Three seed outlet partition plates 36 are arranged at the upper end of the seed box bottom plate along the left-right direction, the upper side of the seed box bottom plate is divided into four seed outlet channels by the three seed outlet partition plates, the rear end of each seed outlet channel corresponds to one seed suction hole group, and the front end of each seed outlet channel corresponds to the same number of seed conveying roller grooves, so that rice seeds can be guaranteed to be uniformly conveyed to the corresponding seed suction hole groups.

The back downside between seed case left side board, the seed case right side board is open structure 37, and the front end upside of seed metering roller is arranged in this open structure, seed case in open structure's upside is provided with tuyere 17, and the tuyere of this embodiment is tree-shaped tuyere, and the tuyere bottom has the orientation the tuyere of seed conveying roller mouth of blowing 18, the tuyere mouth of blowing be used for to seed metering roller front end upside tangent blow with seed metering roller periphery inhale the rice seed beyond the kind punch combination blow to seed conveying roller. Item 41 in fig. 10 indicates a main duct for supplying air to each tuyere.

The upper end of the inner cavity of the seed box is provided with a tuyere mounting plate 9 which gradually inclines downwards from back to front, the tuyere is mounted on the lower side of the tuyere mounting plate, and a tuyere mounting space without rice seeds is formed between the tuyere mounting plate and the rear side plate of the seed box. The tuyere mounting panel stops the rice seed in seed case, and the rice seed height of storage in the seed case can be higher than the tuyere mounting panel, but because the setting of tuyere mounting panel, the rice seed can not bury the tuyere, can not influence the normal use of tuyere. The cooperation of tuyere mounting panel, seed case baffle and defeated kind of roller makes the rice seed form "S" shape middle level between falling seed case bottom plate, is favorable to the rice seed to be carried along defeated kind of roller groove in order.

The rear side of the machine shell is provided with a seed protection device 2, the seed protection device comprises a seed protection support 38 and a seed protection band 27, the seed protection band is a flexible belt, the seed protection band 27 winds around three shaft assemblies which are distributed in a triangular mode and extend in the left-right direction, the seed protection band part between the adjacent shaft assemblies can be regarded as one side of a triangular structure, the side at the most front position is called the seed protection band at the front side, the shaft assemblies comprise mounting shafts 28 mounted on the seed protection support and shaft sleeves 29 rotatably assembled on the mounting shafts, the seed protection band 27 is in contact fit with the shaft sleeves 29, the seed protection band at the front side is in contact fit with the rear end roller surfaces of the seed metering rollers, and the seed protection band part in contact fit with the seed metering rollers corresponds to a seed carrying area of the gas distribution disc in the left-right direction.

The periphery of the shaft sleeve is provided with a plurality of annular anti-skidding grooves 39 which are axially arranged at intervals along the shaft sleeve, and the inner side of the seed protecting band is provided with anti-skidding bosses which are matched with the corresponding anti-skidding grooves. The antiskid groove and the antiskid lug boss are matched to play an antiskid role and also play a role in avoiding the deviation of the protective belt in the rotating process.

This embodiment kind, coaxial line fixedly connected with seed conveying roller sprocket 5 on the seed conveying roller, coaxial line fixedly connected with roller brush axle sprocket 7 on the roller brush, seed conveying roller sprocket passes through chain drive with roller brush axle sprocket and is connected, seed conveying roller and roller brush use a motor drive like this can.

When the rice seed sowing device is used, rice seeds are placed in a seed box, when sowing is needed, because the flowability of the rice seeds is poor, the seed conveying roller rotates, the rice seeds carried by a seed conveying roller groove on the seed conveying roller fall to a seed box bottom plate through a seed box partition plate, then the rice seeds slide to a seed outlet under the action of self gravity, when a seed suction hole group rotates to the seed outlet, a passage port of an air guide passage connected with the seed suction hole group just rotates to the starting end of an arc-shaped air guide passage of a seed suction area, the rice seeds are adsorbed in various seed suction holes of the seed suction hole group, each seed suction hole adsorbs one rice seed, along with the continuous rotation of a visual angle clockwise direction in a picture 3, an air nozzle blows other rice seeds adhered to the surface of an outer roller to the seed conveying roller, along with the continuous rotation of a seed sowing roller, the seed suction hole group carrying the rice seeds rotates to a seed protecting position, in the process, although the seed suction hole group keeps a negative pressure state, the possibility that the rice seeds fall in advance is still exists, the seed protecting group, the rice seeds can be prevented from falling in advance due to the fact that the seed suction hole group rotates under the action of a negative pressure, the seed protecting pipe, the air guide pipe, the rice seeds can reduce the energy consumption of the rice seeds, and the rice seeds can also reduce the rice seeds when the rice seeds, and the rice seeds can be used, and the rice seeds under the rice seeds, and the rice seeds can be reduced when the rice seeds are discharged by the rice seeds under the rice seeds, and the rice seeds are discharged by the rice seeds, and the rice seeds are prevented from falling under the rice seeds. And then, rotating the seed sucking hole group which does not carry the seeds to an idle stroke area, cleaning the seed sucking holes by using the roller brush, discharging impurities in the seed sucking holes from the impurity discharging space, continuously rotating the cleaned seed sucking hole group to the seed sucking area, and circulating the steps.

In the above description of the present specification, the terms "fixed," "mounted," "connected," or "connected" should be construed broadly unless otherwise explicitly specified or limited. For example, with the term "coupled", it can be fixed, removable, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship. Therefore, unless the specification explicitly defines otherwise, those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.

In light of the foregoing description of the present specification, those skilled in the art will also understand that terms used herein, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "lateral," "clockwise," or "counterclockwise," etc., indicate that such terms are based on the orientations and positional relationships illustrated in the drawings of the present specification, and are intended merely for the purpose of facilitating the description and simplifying the description, and do not explicitly or implicitly indicate that the device or element being referred to must have the particular orientation, be constructed and operated in the particular orientation, and therefore such terms are not to be understood or interpreted as limiting the scope of the present invention.

In addition, the terms "first" or "second", etc. used in this specification are used to refer to numbers or ordinal terms for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present specification, "plurality" means at least two, for example, two, three or more, and the like, unless explicitly specified otherwise.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (8)

1. The utility model provides a rice bunch planting seed metering ware, includes the casing, rotates on the casing to be equipped with the seed metering roller that the axis of rotation extends along left right direction, is provided with the seed sucking hole unit of one or more than two along left right direction interval arrangement on the seed metering roller, and every seed sucking hole unit all includes a plurality of seed sucking hole groups along circumference interval arrangement, and the right-hand member of seed metering roller is provided with the gas distribution dish, is provided with in the seed metering roller and corresponds the air guide passageway that seed sucking hole group links to each other, its characterized in that: the air guide channel is provided with a channel port positioned on the right end face of the seed discharging roller, the seed suction area, the seed carrying area, the seed discharging area and the idle stroke area are sequentially arranged on the gas distribution disc along the circumferential direction, the seed suction area and the seed carrying area are provided with arc-shaped air guide channels which extend along the circumferential direction and are used for being connected with a negative pressure source, the seed discharging area is provided with positive pressure air holes which are used for being connected with the positive pressure source, in the rotation process of the seed discharging roller, the air guide channels sequentially pass through the arc-shaped air guide channels, the positive pressure air holes and the idle stroke area, the shell is provided with a roller brush of which the axis extends along the left-right direction, and the roller brush is provided with brush bristles for cleaning the seed suction hole groups corresponding to the idle stroke area.

2. The rice bunch planting seed sowing device of claim 1, wherein: the rice bunch planting seed metering ware still is including being located the seed case of roller brush upside, the seed case bottom is provided with out the kind of a mouth, and the casing includes the roller brush installing support, and the roller brush is installed on the roller brush installing support, forms uncovered miscellaneous space of arranging forward between roller brush installing support and the seed case bottom, and in the left and right sides direction, the miscellaneous space of arranging corresponds with the idle stroke district that divides the gas dish.

3. The rice bunch planting seed sowing device of claim 2, wherein: seed case includes seed case left side board, seed case right side board, seed case front side board and seed case posterior lateral plate, seed case still includes seed case bottom plate and seed case baffle, the seed case baffle extends from back to preceding slope down gradually, the seed case bottom plate extends from preceding slope down to back gradually, the seed case baffle is located the upside of seed case bottom plate, it passes through the passageway to have the seed between the bottom of seed case baffle and the seed case bottom plate, it is terminal that the seed outlet is located the direction stroke of seed case bottom plate, the upside of seed case baffle is provided with the defeated kind roller that the axis of rotation extends along left right direction, defeated kind clearance has between defeated kind roller and the seed case baffle, the spiral helicine defeated kind roller groove that the order was arranged is seted up along left right direction to the periphery of defeated kind roller.

4. The rice bunch planting seed sowing device of claim 3, wherein: on the cross section of the seed conveying roller groove, the side wall of the roller way of the seed conveying roller groove is a straight line, and the bottom of the roller way of the seed conveying roller groove is an arc line.

5. The rice hole-sowing seed-metering device of claim 3, which is characterized in that: the rear lower side between the seed box left side plate and the seed box right side plate is of an open structure, the upper side of the front end of the seed sowing roller is located in the open structure, the upper side of the open structure in the seed box is provided with a wind nozzle, the bottom of the wind nozzle is provided with an orientation wind nozzle blowing port of the seed conveying roller, and the wind nozzle blowing port is used for blowing the upper side of the front end of the seed sowing roller in a tangential direction so as to blow rice seeds outside the seed sucking hole group on the periphery of the seed sowing roller to the seed conveying roller.

6. The rice hole-sowing seed-metering device of claim 5, wherein: the upper end of the inner cavity of the seed box is provided with a tuyere mounting plate which gradually inclines downwards from back to front, the tuyere is mounted on the lower side of the tuyere mounting plate, and a tuyere mounting space without rice seeds is formed between the tuyere mounting plate and the rear side plate of the seed box.

7. The rice bunch planting seed sowing device of claim 1, wherein: the casing rear side is provided with protects kind of device, protects kind of device including protecting the area support and protecting the area, protects the area around the axle subassembly that extends in three axis that is triangular distribution along controlling the direction, the axle subassembly is including installing installation axle and the rotation assembly in the epaxial axle sleeve of installation on protecting the area support, protects area and axle sleeve contact cooperation, the front side protect the area and the rear end roll face contact cooperation of seed metering roller, on controlling the direction, with seed metering roller contact complex protect the area part and divide the gas dish to take the kind of district to correspond.

8. The rice bunch planting seed sowing device of claim 7, wherein: the periphery of the shaft sleeve is provided with a plurality of annular anti-skidding grooves which are axially arranged at intervals along the shaft sleeve, and the inner side of the seed protecting band is provided with an anti-skidding boss matched with the corresponding anti-skidding grooves.

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