CN112221694A

CN112221694A - Agricultural mechanical equipment for screening good seeds in agricultural planting

Info

Publication number: CN112221694A
Application number: CN202011045050.3A
Authority: CN
Inventors: 宋维康
Original assignee: Chengmai Nongbo Agricultural Development Co ltd
Current assignee: Chengmai Nongbo Agricultural Development Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-01-15

Abstract

The invention discloses agricultural mechanical equipment for screening excellent seeds in agricultural planting, which comprises a water supply part, wherein the right end of the water supply part is fixedly connected with a drying box, the right end of the drying box is fixedly provided with a drying device, the middle part of the upper end of the drying box is fixedly connected with a first conveying pipe, the left end of the first conveying pipe is fixedly connected with a screening box, the upper end of the screening box is fixedly provided with a feeding device, the middle part of the upper end of the screening box penetrates through a cleaning device, the middle part of the lower end of the drying box is fixedly connected with a second conveying pipe, the lower end of the second conveying pipe is fixedly connected with a screening box, and four corners of the lower end of the. The agricultural mechanical equipment for screening excellent seeds in agricultural planting can realize removal of shrivelled seeds or hollow seeds damaged by worms, improve the screening quality of the seeds, is beneficial to agricultural planting, can easily store the screened seeds, can screen various seeds, and is convenient for bagging the seeds.

Description

Agricultural mechanical equipment for screening good seeds in agricultural planting

Technical Field

The invention relates to the field of agricultural mechanical equipment, in particular to agricultural mechanical equipment for screening excellent seeds in agricultural planting.

Background

The basis of agriculture is the crop production, which continues and develops depending on the seeds. At present, the seeds are screened by a screening machine, and the prior screening equipment has the following problems in the using process: 1. the existing screening machine can only screen seeds with different particle sizes, but cannot screen hollow seeds damaged by worms or shriveled seeds, so that the quality of the screened seeds is poor, and the screening machine is not beneficial to agricultural planting. 2. The existing screening machine has a single function and only has a single screening function, and cannot perform cleaning and drying operations on seeds, so that the screened seeds are difficult to store and have poor appearance, and the selling of the seeds is influenced; 3. the current sieve separator is fixed because of the screening aperture, so can only screen one kind or certain kind of seed for the application scope of sieve separator is narrow, is unfavorable for the large tracts of land to be promoted and is suitable for, and is not convenient for collect the bagging-off operation to the seed that the screening was come out.

Disclosure of Invention

The invention mainly aims to provide agricultural mechanical equipment for screening excellent seeds in agricultural planting, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

an agricultural mechanical device for screening good seeds in agricultural planting comprises a water supply part, wherein a drying box is fixedly connected to the right end of the water supply part, a drying device is fixedly mounted at the right end of the drying box, the left end of the drying device penetrates through the left end wall of the drying box and extends into the drying box, a first conveying pipe is fixedly connected to the middle part of the upper end of the drying box, a screening box is fixedly connected to the left end of the first conveying pipe, a feeding device is fixedly mounted at the upper end of the screening box, a cleaning device penetrates through the middle part of the upper end of the screening box, the lower end of the screening box is fixedly connected with the upper part of the water supply part, first supporting legs are fixedly mounted at the four corners of the lower end of the drying box and the left side of the lower end of the water supply part, a second conveying pipe is fixedly connected to the middle part of the, the screening box is positioned in front of the drying box;

the feeding device comprises a feeding hopper, a third conveying pipe is fixedly mounted at the lower end of the feeding hopper, the third conveying pipe is distributed in a height-up-right mode, a guide pipe is fixedly mounted in the middle of the right end of the feeding hopper, a fan is fixedly connected to the middle of the guide pipe, a collecting box is fixedly connected to the right end of the guide pipe, the lower end of the collecting box and the lower end of the fan are fixedly connected to the upper end of a screening box, and the right end of the third conveying pipe is fixedly connected to the upper portion of the left end of the screening box.

Preferably, the inside fixed mounting of screening case has the strainer plate, and the strainer plate is the height distribution about, screening case left end upper portion and left end lower part fixed mounting respectively have a fluid-discharge tube and No. two fluid-discharge tubes, screening case right-hand member upper portion fixed mounting has level sensor, the anterior fixed mounting of screening case right-hand member has the control box, level sensor and control box electric connection, and level sensor and a fluid-discharge tube are located same water flat line, control box and water supply spare electric connection.

Preferably, cleaning device includes the motor, motor output end fixed mounting has the pivot, pivot surface fixed mounting has a plurality of equidistant distribution's (mixing) shaft, and is a plurality of the equal fixed mounting of (mixing) shaft surface has a plurality of washing pappus brushes, the pivot upper end runs through screening case upper end wall, motor lower extreme and screening case upper end middle part fixed connection, the pivot is located the drainage board top.

Preferably, the inside branch flitch, No. two branch flitchs and No. three branch flitchs of fixed mounting respectively of drying cabinet, No. one divide the flitch to be located No. two branch flitchs top, No. two divide the flitch to be located No. three branch flitchs top, No. one divide flitch surface, No. two branch flitch surfaces and No. three branch flitch surfaces all opened a plurality of through-holes, the equal three blast pipes of fixedly connected with in drying cabinet left end.

Preferably, the drying device comprises a supporting plate, a second fan is fixedly mounted at the upper end of the supporting plate, a first air pipe is fixedly connected with the output end of the second fan, a second air pipe is fixedly connected with the left end of the first air pipe, three air exhaust pieces are fixedly mounted at the left end of the second air pipe, the three air exhaust pieces are distributed at equal intervals, the air exhaust pieces comprise air guide pipes, and a plurality of exhaust pipes distributed at equal intervals are fixedly mounted at the lower ends of the air guide pipes.

Preferably, No. one divide the flitch, divide the flitch No. two and divide the flitch No. three and all be chevron structure, and three exhaust a little be located No. one divide the flitch top, divide the flitch top and divide the flitch No. three respectively.

Preferably, the common fixed mounting in screening case left end middle part and right-hand member middle part has the baffle, and the baffle is the height distribution about, the common fixed mounting in baffle lower extreme and screening case upper end has two risers, open the draw-in groove that has three equidistant distribution on the baffle upper end, it is three inside the draw-in groove activity joint respectively has a screening board, No. two screening boards and No. three screening boards, a screening board is located No. two screening board left, and No. two screening boards are located No. three screening board left, No. one of three equidistant distribution of screening case lower extreme fixedly connected with arranges the material pipe, No. two row material pipes of screening case right end fixedly connected with, a screening board aperture is less than No. two screening board apertures, and No. two screening board apertures are less than No. three screening board apertures.

Preferably, collection device includes two No. three supporting legss and two No. two supporting legss, two No. three the supporting legs is located two No. two supporting legss left, and two No. three supporting legss height all is higher than two No. two supporting legss height, two the common fixedly connected with bottom plate of No. three supporting legs right-hand member and two No. two supporting legss left ends, the bottom plate upper end is inlayed and is equipped with three pressure sensor, and is three pressure sensor the place ahead all is provided with the display screen, and the display screen respectively with three pressure sensor electric connection, two No. three supporting legss upper ends and two No. two supporting legss upper ends all with screening case lower extreme fixed connection.

Preferably, the water supply part comprises a water tank, four supporting legs are fixedly mounted on the left portion of the upper end of the water tank, a water guide pipe penetrates through the right portion of the upper end of the water tank, a water pump is fixedly mounted in the middle of the water guide pipe, the left end of the water guide pipe is fixedly connected with the upper portion of the right end of the screening box, and the upper ends of the four supporting legs are fixedly connected with the lower end of the screening box.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the liquid level in the screening box is controlled to be flush with the first liquid discharge pipe through the arrangement of the liquid level sensor, the control box and the water supply part, and the dry and flat seeds or the hollow seeds damaged by worms in the screening box float on the liquid level under the action of buoyancy and are finally discharged along with the first liquid discharge pipe, so that the removal of the dry and flat seeds or the hollow seeds damaged by worms is realized, the screening quality of the seeds is improved, and the agricultural planting is facilitated.

2. According to the invention, the stirring shaft and the cleaning soft brush on the cleaning device are used for stirring the seeds and cleaning the surfaces of the seeds at the same time, so that the seeds are attractive in appearance; and dry operation is carried out under drying device's effect to abluent seed, avoids the seed of screening out to be difficult for preserving the selling that influences the seed.

3. According to the multi-stage screening device, the screening plates with different apertures are clamped with the corresponding clamping grooves, so that multi-stage screening of seeds is realized, the screening plates can be replaced by movably clamping the screening plates and the clamping grooves, screening of various seeds is realized, and the application range is widened; and collection device can weigh the operation to the seed of screening, the bagging-off of the seed of being convenient for.

Drawings

FIG. 1 is a schematic view of the overall structure of an agricultural machine for screening good seeds in agricultural planting according to the present invention;

FIG. 2 is a longitudinal sectional view of a screening box of an agricultural machine for screening fine seeds in agricultural planting according to the present invention;

FIG. 3 is a schematic structural diagram of a cleaning device of an agricultural machinery for screening good seeds in agricultural planting according to the present invention;

FIG. 4 is a schematic view of the connection between the drying box and the drying device of the agricultural machinery for screening good seeds in agricultural planting according to the present invention;

FIG. 5 is a longitudinal cross-sectional view of a screening box of an agricultural machine for screening good seeds for agricultural planting according to the present invention;

FIG. 6 is a schematic structural diagram of a collecting device of an agricultural machinery for screening good seeds in agricultural planting according to the present invention;

FIG. 7 is a schematic structural diagram of a water supply part of an agricultural mechanical device for screening good seeds in agricultural planting according to the invention.

In the figure: 1. a first conveying pipe; 2. a cleaning device; 3. a feeding device; 4. a screening box; 5. a drying oven; 6. a drying device; 7. screening the box; 8. a collection device; 9. a water supply member; 10. a first supporting leg; 11. a second conveying pipe; 21. a motor; 22. a rotating shaft; 23. a stirring shaft; 24. cleaning the soft brush; 31. a feed hopper; 32. a first fan; 33. a third conveying pipe; 34. a conduit; 35. a collection box; 41. a liquid level sensor; 42. a first liquid discharge pipe; 43. a second liquid discharge pipe; 44. a water filter plate; 45. a control box; 51. a first material distributing plate; 52. a second material distributing plate; 53. a third material distributing plate; 54. a through hole; 55. an exhaust pipe; 61. a support plate; 62. a second fan; 63. a first air pipe; 64. a second air pipe; 65. an air exhaust member; 71. a partition plate; 72. a first screening plate; 73. a card slot; 74. a second screening plate; 75. a third screening plate; 76. a vertical plate; 77. a first discharge pipe; 78. a second discharge pipe; 81. a pressure sensor; 82. a base plate; 83. a second supporting leg; 84. supporting legs III; 85. a display screen; 91. a water tank; 92. supporting feet No. four; 93. a water conduit; 94. a water pump; 651. an air guide pipe; 652. an exhaust pipe.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figures 1-7, an agricultural mechanical device for screening good seeds in agricultural planting comprises a water supply part 9, a drying box 5 is fixedly connected to the right end of the water supply part 9, a drying device 6 is fixedly installed at the right end of the drying box 5, the left end of the drying device 6 penetrates through the left end wall of the drying box 5 and extends into the drying box 5, a first conveying pipe 1 is fixedly connected to the middle of the upper end of the drying box 5, a screening box 4 is fixedly connected to the left end of the first conveying pipe 1, a feeding device 3 is fixedly installed at the upper end of the screening box 4, a cleaning device 2 penetrates through the middle of the upper end of the screening box 4, the lower end of the screening box 4 is fixedly connected with the upper part of the water supply part 9, first supporting legs 10 are fixedly installed at four corners of the lower end of the drying box 5 and the left side of the lower end of the water supply part 9, a, the four corners of the lower end of the screening box 7 are jointly and fixedly provided with a collecting device 8, and the screening box 7 is positioned in front of the drying box 5;

feed arrangement 3 includes feed hopper 31, feed hopper 31 lower extreme fixed mounting has No. three conveyer pipes 33, and No. three conveyer pipes 33 are high right-hand member low distribution, feed hopper 31 right-hand member middle part fixed mounting has pipe 34, No. one fan 32 of pipe 34 middle part fixedly connected with, pipe 34 right-hand member fixedly connected with collecting box 35, collecting box 35 lower extreme and No. one fan 32 lower extreme all with screening case 4 upper end fixed connection, No. three conveyer pipes 33 right-hand member and screening case 4 left end upper portion fixed connection.

In order to control the liquid level in the screening box 4, a water filtering plate 44 is fixedly installed inside the screening box 4, the water filtering plate 44 is distributed in a left-high-right-low mode, a first liquid discharge pipe 42 and a second liquid discharge pipe 43 are respectively and fixedly installed on the upper portion of the left end and the lower portion of the left end of the screening box 4, a liquid level sensor 41 is fixedly installed on the upper portion of the right end of the screening box 4, a control box 45 is fixedly installed on the front portion of the right end of the screening box 4, the liquid level sensor 41 is electrically connected with the control box 45, the liquid level sensor 41 and the first liquid discharge pipe 42 are located on the same horizontal line, and; the cleaning device comprises a motor 21, a rotating shaft 22 is fixedly installed at the output end of the motor 21, a plurality of stirring shafts 23 which are distributed at equal intervals are fixedly installed on the outer surface of the rotating shaft 22, a plurality of cleaning soft hair brushes 24 are fixedly installed on the outer surfaces of the stirring shafts 23, the upper end of the rotating shaft 22 penetrates through the upper end wall of the screening box 4, the lower end of the motor 21 is fixedly connected with the middle part of the upper end of the screening box 4, the rotating shaft 22 is positioned above the water filtering plate 44, the motor 21 drives the stirring shafts 23 on the rotating shaft 22 to rotate, so that a water body with seeds in the screening box 4 is rotated, and the; in order to facilitate the preservation of seeds, a first distributing plate 51, a second distributing plate 52 and a third distributing plate 53 are fixedly installed inside the drying box 5 respectively, the first distributing plate 51 is located above the second distributing plate 52, the second distributing plate 52 is located above the third distributing plate 53, a plurality of through holes 54 are formed in the outer surface of the first distributing plate 51, the outer surface of the second distributing plate 52 and the outer surface of the third distributing plate 53, and three exhaust pipes 55 are fixedly connected to the left end of the drying box 5; in order to dry the seeds, the drying device 6 comprises a support plate 61, a second fan 62 is fixedly installed at the upper end of the support plate 61, a first air pipe 63 is fixedly connected to the output end of the second fan 62, a second air pipe 64 is fixedly connected to the left end of the first air pipe 63, three exhaust pieces 65 are fixedly installed at the left end of the second air pipe 64, the three exhaust pieces 65 are distributed at equal intervals, each exhaust piece 65 comprises an air guide pipe 651, and a plurality of exhaust pipes 652 which are distributed at equal intervals are fixedly installed at the lower end of each air guide pipe 651; the first material distributing plate 51, the second material distributing plate 52 and the third material distributing plate 53 are all in a herringbone structure, the three air exhaust pieces 65 are respectively positioned above the first material distributing plate 51, the second material distributing plate 52 and the third material distributing plate 53, and the herringbone material distributing plates 52 can prevent seeds from being accumulated in a concentrated mode in the drying process, so that the drying effect is guaranteed; in order to realize multi-stage screening of seeds, a partition plate 71 is fixedly mounted in the middle of the left end and the middle of the right end of a screening box 7 together, the partition plate 71 is distributed in a left-high-right-low mode, two vertical plates 76 are fixedly mounted in the lower end of the partition plate 71 and the upper end of the screening box 7 together, three clamping grooves 73 distributed at equal intervals are formed in the upper end of the partition plate 71, a first screening plate 72, a second screening plate 74 and a third screening plate 75 are movably clamped in the three clamping grooves 73 respectively, the first screening plate 72 is located on the left side of the second screening plate 74, the second screening plate 74 is located on the left side of the third screening plate 75, three first discharge pipes 77 distributed at equal intervals are fixedly connected to the lower end of the screening box 7, a second discharge pipe 78 is fixedly connected to the right end of the screening box 7, the aperture of the first screening plate 72 is smaller than the aperture of the second screening plate 74, and; the collecting device 8 comprises two third supporting legs 84 and two second supporting legs 83, the two third supporting legs 84 are located on the left of the two second supporting legs 83, the heights of the two third supporting legs 84 are higher than the heights of the two second supporting legs 83, the right ends of the two third supporting legs 84 and the left ends of the two second supporting legs 83 are fixedly connected with a bottom plate 82 together, three pressure sensors 81 are embedded in the upper end of the bottom plate 82, display screens 85 are arranged in front of the three pressure sensors 81, the display screens 85 are electrically connected with the three pressure sensors 81 respectively, the upper ends of the two third supporting legs 84 and the upper ends of the two second supporting legs 83 are fixedly connected with the lower end of the screening box 7, the pressure sensors 81 are used for weighing screened seeds, and are displayed through the corresponding display screens 85 finally, and the collection of the seeds with different particle sizes is achieved; in order to supply water to screening case 4, water supply 9 includes water tank 91, and water tank 91 upper end left part fixed mounting has four No. four supporting legss 92, and water tank 91 upper end right part runs through has aqueduct 93, and aqueduct 93 middle part fixed mounting has water pump 94, aqueduct 93 left end and screening case 4 right-hand member upper portion fixed connection, four No. four supporting legss 92 upper ends all with screening case 4 lower extreme fixed connection.

It should be noted that, the present invention is an agricultural machinery for screening fine seeds in agricultural planting, when seeds need to be screened, firstly, the first blower 32 is turned on to work, seeds to be screened are poured into the feeding hopper 31, the poured seeds are under the action of the first blower 32, impurities and dust in the seeds are conveyed into the collecting box 35 through the conduit 34, so as to remove the impurities in the seeds, then the seeds with the impurities removed are conveyed into the screening box 4 through the third conveying pipe 33, at this time, a worker turns on the water pump 94 to work, water in the water tank 91 is conveyed into the screening box 4 through the conduit 93 under the action of the water pump 94, the water adding operation of the screening box 4 is performed, when the liquid level of the water in the screening box 4 rises to the liquid level sensor 41, the liquid level sensor 41 detects liquid level information, and transmits the liquid level height value to the control box 45, the control box 45 is internally provided with a singlechip for controlling the water pump 94 to stop water adding operation, at the moment, a worker starts the motor 21 to work, the motor 21 drives the stirring shaft 23 on the rotating shaft 22 to rotate, so that the water body with seeds in the screening box 4 rotates, when the motor 21 works for a period of time, the worker controls the motor 21 to stop working, the seeds which are light in weight, hollow in the interior or shriveled float on the liquid level under the action of buoyancy, at the moment, the worker opens the first liquid discharge pipe 42 to open, so that the shriveled seeds, the worm-eaten seeds and the like are removed, and the screening effect is improved; after the seeds such as shriveled seeds, worm eaten seeds and the like are completely discharged along with the water body, the second liquid discharge pipe 43 is opened, the water body in the water tank 91 is discharged by the second liquid discharge pipe 43, the screened and cleaned seeds are intercepted on the water filtering plate 44 and are conveyed into the drying box 5 through the first conveying pipe 1, at the moment, the second fan 62 is started, and the air exhaust pipes 652 on the three air exhaust pieces 65 are all used for exhausting dry air to dry the cleaned and wet seeds; and the seed that gets into in the drying cabinet 5 is when dry the seed through a plurality of minute flitch sieves and discharges through-hole 54 under the effect of gravity, thereby avoid the seed to concentrate in drying process and pile up, guarantee drying effect, and through dry seed get into in screening cabinet 7 under No. two conveyer pipe 11's effect, and baffle 71 slope sets up, the seed constantly sieves through the three screening board of joint on the baffle 71, realize the multistage screening of seed, and the seed through the screening finally discharges through a row of material pipe 77 that corresponds, and bottom plate 82 upper end is provided with a plurality of pressure sensor 81, be used for weighing the seed of screening the operation, and finally show through corresponding display screen 85, realize the collection of different particle diameter seeds.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An agricultural machinery equipment for screening good seeds in agricultural planting, which comprises a water supply part (9), and is characterized in that: the drying box is characterized in that the right end of the water supply part (9) is fixedly connected with a drying box (5), the right end of the drying box (5) is fixedly provided with a drying device (6), the left end of the drying device (6) penetrates through the left end wall of the drying box (5) and extends into the drying box (5), the middle part of the upper end of the drying box (5) is fixedly connected with a first conveying pipe (1), the left end of the first conveying pipe (1) is fixedly connected with a screening box (4), the upper end of the screening box (4) is fixedly provided with a feeding device (3), the middle part of the upper end of the screening box (4) is penetrated with a cleaning device (2), the lower end of the screening box (4) is fixedly connected with the upper part of the water supply part (9), the four corners of the lower end of the drying box (5) and the left side of the lower end of the water supply part (9) are both fixedly provided, the lower end of the second conveying pipe (11) is fixedly connected with a screening box (7), four corners of the lower end of the screening box (7) are jointly and fixedly provided with a collecting device (8), and the screening box (7) is positioned in front of the drying box (5);

feed arrangement (3) are including feed hopper (31), feed hopper (31) lower extreme fixed mounting has No. three conveyer pipes (33), and No. three conveyer pipes (33) are high left and low right distribution, feed hopper (31) right-hand member middle part fixed mounting has pipe (34), fan (32) No. one of pipe (34) middle part fixedly connected with, pipe (34) right-hand member fixedly connected with collecting box (35), collecting box (35) lower extreme and fan (32) lower extreme all with screening case (4) upper end fixed connection, No. three conveyer pipes (33) right-hand member and screening case (4) left end upper portion fixed connection.

2. An agricultural mechanical apparatus for screening fine seeds in agricultural planting according to claim 1, wherein: screening case (4) inside fixed mounting has water strainer plate (44), and water strainer plate (44) are high right-hand low distribution in the left side, screening case (4) left end upper portion and left end lower part fixed mounting respectively have fluid-discharge tube (42) and No. two fluid-discharge tubes (43), screening case (4) right-hand member upper portion fixed mounting has level sensor (41), screening case (4) right-hand member front portion fixed mounting has control box (45), level sensor (41) and control box (45) electric connection, and level sensor (41) and fluid-discharge tube (42) are located same water flat line, control box (45) and water supply (9) electric connection.

3. An agricultural mechanical apparatus for screening fine seeds in agricultural planting according to claim 1, wherein: cleaning device includes motor (21), motor (21) output end fixed mounting has pivot (22), pivot (22) surface fixed mounting has a plurality of equidistant distribution's (mixing) shaft (23), and is a plurality of the equal fixed mounting of (mixing) shaft (23) surface has a plurality of washing pappus brush (24), pivot (22) upper end is run through screening case (4) upper end wall, motor (21) lower extreme and screening case (4) upper end middle part fixed connection, pivot (22) are located drainage board (44) top.

4. An agricultural mechanical apparatus for screening fine seeds in agricultural planting according to claim 1, wherein: drying cabinet (5) inside respectively fixed mounting have branch flitch (51), No. two branch flitchs (52) and No. three branch flitch (53), a branch flitch (51) are located No. two branch flitchs (52) tops, No. two branch flitchs (52) are located No. three branch flitch (53) tops, a plurality of through-holes (54) have all been opened to a branch flitch (51) surface, No. two branch flitch (52) surfaces and No. three branch flitch (53) surfaces, the equal three blast pipe (55) of equal fixedly connected with in drying cabinet (5) left end.

5. An agricultural mechanical apparatus for screening fine seeds in agricultural planting according to claim 1, wherein: drying device (6) are including backup pad (61), backup pad (61) upper end fixed mounting has No. two fan (62), No. two fan (62) output end fixed connection tuber pipe (63), No. two tuber pipe (64) of tuber pipe (63) left end fixed connection, No. two tuber pipe (64) left end fixed mounting has three piece (65) of airing exhaust, and three piece (65) of airing exhaust equidistant distribution, three it includes guide duct (651) to air exhaust piece (65), the equal fixed mounting of guide duct (651) lower extreme has a plurality of exhaust pipes (652) of equidistant distribution.

6. An agricultural mechanical apparatus for screening fine seeds in agricultural planting according to claim 4, wherein: no. one divide flitch (51), No. two divide flitch (52) and No. three divide flitch (53) all to be chevron structure, and three exhaust piece (65) are located a branch flitch (51) top, No. two divide flitch (52) top and No. three divide flitch (53) top respectively.

7. An agricultural mechanical apparatus for screening fine seeds in agricultural planting according to claim 1, wherein: the screening box is characterized in that a partition plate (71) is fixedly mounted in the middle of the left end and the middle of the right end of the screening box (7) jointly, the partition plate (71) is distributed in a high-right-low mode, two vertical plates (76) are fixedly mounted on the lower end of the partition plate (71) and the upper end of the screening box (7) jointly, three clamping grooves (73) distributed at equal intervals are formed in the upper end of the partition plate (71), a first screening plate (72), a second screening plate (74) and a third screening plate (75) are movably clamped in the three clamping grooves (73) respectively, the first screening plate (72) is located on the left of the second screening plate (74), the second screening plate (74) is located on the left of the third screening plate (75), a first material discharging pipe (77) distributed at equal intervals is fixedly connected to the lower end of the screening box (7), a second material discharging pipe (78) is fixedly connected to the right end of the screening box (7), and the aperture of the first material discharging plate (72) is smaller than the aperture of the, and the aperture of the second screening plate (74) is smaller than that of the third screening plate (75).

8. An agricultural mechanical apparatus for screening fine seeds in agricultural planting according to claim 1, wherein: collection device (8) are including two No. three supporting legss (84) and two No. two supporting legss (83), two No. three supporting legss (84) are located two No. two supporting legss (83) left, and two No. three supporting legss (84) highly all are higher than two No. two supporting legss (83) height, two No. three supporting legss (84) right-hand member and two No. two supporting legss (83) common fixedly connected with bottom plate (82) of left end, bottom plate (82) upper end is inlayed and is equipped with three pressure sensor (81), and is three pressure sensor (81) the place ahead all is provided with display screen (85), and display screen (85) respectively with three pressure sensor (81) electric connection, two No. three supporting legss (84) upper ends and two No. two supporting legss (83) upper ends all with screening case (7) lower extreme fixed connection.

9. An agricultural mechanical apparatus for screening fine seeds in agricultural planting according to claim 1, wherein: water supply spare (9) include water tank (91), water tank (91) upper end left part fixed mounting has four No. four supporting legss (92), water tank (91) upper end right part runs through has aqueduct (93), aqueduct (93) middle part fixed mounting has water pump (94), aqueduct (93) left end and screening case (4) right-hand member upper portion fixed connection, four No. four supporting legss (92) upper end all with screening case (4) lower extreme fixed connection.