CN209768148U

CN209768148U - No-tillage seeder of maize

Info

Publication number: CN209768148U
Application number: CN201822121296.9U
Authority: CN
Inventors: 王江涛; 李俊杰; 李奇; 申东亮; 李元宝; 王东升; 张俊世
Original assignee: Henan Agriculture Has Agricultural Equipment Polytron Technologies Inc
Current assignee: Henan Agriculture Has Agricultural Equipment Polytron Technologies Inc
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2019-12-13
Anticipated expiration: 2028-12-18

Abstract

The utility model relates to the technical field of auxiliary devices for planting corn, in particular to a corn no-tillage seeding device, which can automatically cover soil after seeding, improve the seeding efficiency of corn, ensure the consistent emergence situation of corn and improve the yield of corn; the seeding box comprises a seeding box, four groups of supporting rods, two groups of supports, two groups of connecting rods, two groups of rotary tillage rods, a rotary tillage shaft, a rotary table, a plurality of groups of blades, two groups of rotary rods, a rotary shaft and two groups of rollers, wherein a seeding cavity is arranged in the seeding box, the top of the seeding box is communicated with a seeding port, a seeding cover plate is arranged in the seeding port, the top ends of the four groups of supporting rods are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom of the seeding box, and the bottom ends of the four groups of supporting rods; the device also comprises two groups of pressing rods, pressing shafts, two groups of fixing rings, two groups of rotating cylinders, two groups of scraping plates, limiting rods and adjusting threaded rods.

Description

No-tillage seeder of maize

Technical Field

The utility model relates to a technical field of corn planting auxiliary device especially relates to a no-tillage seeder of maize.

Background

As is well known, a corn no-tillage seeding device is an auxiliary device for seeding corn seeds and does not need to cultivate the soil before seeding, and is widely used in the field of corn planting; the prior no-tillage seeding device for corn comprises a seeding box, four groups of supporting rods, two groups of supports, two groups of connecting rods, two groups of rotary tillage rods, a rotary tillage shaft, a turntable, a plurality of groups of blades, two groups of rotating rods, a rotating shaft and two groups of rollers, wherein a seeding cavity is arranged in the seeding box, the top of the seeding box is communicated with a seeding port, a seeding cover plate is arranged in the seeding port, the top ends of the four groups of supporting rods are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom of the seeding box, the bottom ends of the four groups of supporting rods are respectively connected with the left side and the right side of the top of the two groups of supports, the front ends and the rear ends of the two groups of connecting rods are respectively connected with the left ends and the right ends of the two groups of supports, the top ends of the two groups of rotary tillage rods are respectively, the middle part of the rotary tillage shaft is sleeved with the middle part of the rotary tillage shaft, a plurality of groups of blades are respectively and uniformly fixed on the periphery of the outer side of the rotary tillage shaft, the top ends of two groups of rotating rods are respectively connected with the central positions of the bottoms of two groups of brackets, the bottoms of the two groups of rotating rods are respectively provided with two groups of rotating ports, the front ends and the rear ends of the rotating shafts are respectively and rotatably connected with the two groups of rotating ports, the middle parts of two groups of rollers are respectively connected with the front ends and the rear ends of the rotating shafts, the two groups of rollers are respectively positioned on the rear side of the rear side rotating plate and the front side of the front side rotating plate, the bottom of the seeding box is communicated with a seed sprinkling port, the bottom of the seed sprinkling port is communicated with a seed sprinkling; when the existing corn no-tillage seeding device is used, the device is pulled through an external power device such as a tractor and the like to advance in a field, meanwhile, an external motor is used for driving a rotary table to rotate, then rotary tillage is carried out on the field through rotation of a plurality of blades, then corn seeds are added into a seeding box, then a seed spreading valve is opened, and the seeds are spread in grooves formed by the blades in the rotary tillage through a seed spreading pipe during the process of advancing the device and carrying out rotary tillage; the existing no-tillage corn sowing device is found in use that after seeds are sowed, soil needs to be manually covered on the corn seeds again, so that the sowing efficiency of the corn is low; moreover, the thickness of the manual soil covering can not be guaranteed to be consistent, so that the device can not guarantee the uniformity of the emergence rate of the corn, and the yield of the corn in the future is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can carry out the earthing automatically after the seeding, improve maize seeding efficiency to, guarantee that the maize condition of emerging is unanimous, improve maize output's no-tillage seeder.

The utility model relates to a corn no-tillage seeding device, which comprises a seeding box, four groups of supporting rods, two groups of supports, two groups of connecting rods, two groups of rotary tillage rods, a rotary tillage shaft, a rotary disk, a plurality of groups of blades, two groups of rotating rods, a rotating shaft and two groups of rollers, wherein the seeding box is internally provided with a seeding cavity, the top part of the seeding box is communicated with a seeding port, the inner cover of the seeding port is provided with a seeding cover plate, the top ends of the four groups of supporting rods are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom part of the seeding box, the bottom ends of the four groups of supporting rods are respectively connected with the left side and the right side of the top part of the two groups of supports, the front ends and the rear ends of the two groups of connecting rods are respectively fixed on the front side and the rear side of the bottom part of the left connecting rod, the, the middle part of the rotary tillage shaft is sleeved with the middle part of the rotary tillage shaft, a plurality of groups of blades are respectively and uniformly fixed on the periphery of the outer side of the rotary tillage shaft, the top ends of two groups of rotating rods are respectively connected with the central positions of the bottoms of two groups of brackets, the bottoms of the two groups of rotating rods are respectively provided with two groups of rotating ports, the front ends and the rear ends of the rotating shafts are respectively and rotatably connected with the two groups of rotating ports, the middle parts of two groups of rollers are respectively connected with the front ends and the rear ends of the rotating shafts, the two groups of rollers are respectively positioned on the rear side of the rear side rotating plate and the front side of the front side rotating plate, the bottom of the seeding box is communicated with a seed sprinkling port, the bottom of the seed sprinkling port is communicated with a seed sprinkling; the top ends of the two groups of pressure bars are respectively connected with the right sides of the bottoms of the two groups of brackets, the bottoms of the two groups of pressure bars are respectively provided with two groups of pressing ports, the front ends and the rear ends of the pressure bars are respectively rotatably connected with the two groups of pressing ports, the two groups of fixing rings are respectively fixed at the front sides of the bottoms of the pressure bars at the rear side and the rear sides of the bottoms of the pressure bars at the front side, the two groups of rotary drums are respectively sleeved at the front sides and the rear sides of the pressure bars, the front ends and the rear ends of the two groups of rotary drums are respectively connected with the front ends, the middle parts and the rear ends of the pressure bars, a certain distance exists between the front and the rear of the two groups of rotary drums, the front ends of one group of the two groups of scraper bars are connected with the left sides of the rear ends of the fixing rings at the front sides, and the rear ends of the other group of the two groups of scraper bars are connected with, interconnect between two sets of scrapers, two sets of scrapers all are located two sets of rotary drums front sides, have certain clearance between two sets of scrapers and two sets of rotary drums, and the gag lever post is located between two sets of rotary drums, is provided with the spacing hole of multiunit on the gag lever post uniformly, and two sets of solid fixed ring's right side middle part is provided with two sets of spacing screw holes respectively, and threaded rod's front end and rear end are the spiral shell dress respectively in two sets of spacing screw holes, and the middle part of adjusting threaded rod passes a set of spacing hole in the spacing hole.

The utility model discloses a no-tillage seeder of maize still includes the ditching pole, and the top of ditching pole is fixed between two sets of support bottom left sides, and the ditching pole is located multiunit blade rear side, and the ditching pole is located the front side that spills the kind pipe.

The utility model discloses a no-tillage seeder of maize still includes two sets of ball bearing, and two sets of ball bearing's inboard is connected with the front end and the rear end of suppressing the axle respectively, and two sets of ball bearing's the outside is connected with the inside front end and the rear end of rotary drum respectively.

The utility model discloses a no-tillage seeder of maize still includes four group's spacing rings, and four group's spacing rings are located two sets of ball bearing's front side and rear side respectively, and four group's spacing rings suit are respectively at the front end and the rear end of suppressing the axle.

The utility model discloses a maize no-tillage seeder, still include can fertilizer and two sets of fertilizer pole, the can fertilizer left side is connected with the seeding case right side, the top of two sets of fertilizer pole is connected with the right front side and the right back side of can fertilizer bottom respectively, the bottom of two sets of fertilizer pole is connected with the right side at two sets of support tops respectively, be provided with the fertilizer chamber in the can fertilizer, can fertilizer top intercommunication is provided with the fertilizer mouth, the lid is installed in the fertilizer mouth has the fertilizer apron, can fertilizer bottom intercommunication is provided with the mouth of fertilizing, the mouth of fertilizing bottom intercommunication is provided with the fertilization pipe, fertilization pipe top intercommunication is provided with the fertilization valve, fertilization socle portion is located spills kind socle portion right side, fertilization socle portion is located two sets of scraper blade front sides.

The utility model discloses a no-tillage seeder of maize still includes seeding glass apron, and seeding case left side intercommunication is provided with the seeding viewing aperture, and seeding glass apron is installed in the seeding viewing aperture.

The utility model discloses a maize no-tillage seeder still includes the fertilization glass apron, and can fertilizer left side intercommunication is provided with the fertilization viewing aperture, and fertilization glass apron is installed in the fertilization viewing aperture.

The utility model discloses a no-tillage seeder of maize still includes two sets of shock attenuation lantern rings, and two sets of shock attenuation lantern rings are established respectively in the outside of two sets of gyro wheels.

Compared with the prior art, the beneficial effects of the utility model are that: after the corn is sowed, the scraper at the rear side of the seed sowing pipe can scrape soil which is rotationally ploughed by the blade into the groove again, and then the corn seeds are covered with soil and pressed by the rotation of the two groups of rotary drums, so that the corn sowing efficiency is improved, and meanwhile, the soil covering and pressing effects of the corn are kept consistent, so that the uniformity of the emergence rate and the yield of the corn in the future is ensured; in addition, before scraper blade and rotary drum carry out the earthing, can twist out adjusting threaded rod, then reciprocate the gag lever post, then make adjusting threaded rod pass different spacing holes on the gag lever post to change the length that the gag lever post bottom stretches out solid fixed ring bottom, and place the gag lever post bottom in the ditch inslot, thereby adjust the terrain clearance of scraper blade and rotary drum, thereby change the earthing thickness of maize kind, thereby adjust the depth of planting in the maize, thereby improve flexibility and convenience when the device uses.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a left side view of the present invention.

Fig. 3 is a partially enlarged view of part a of the present invention.

In the drawings, the reference numbers: 1. a seeding box; 2. a support bar; 3. a support; 4. a connecting rod; 5. a rotary tillage rod; 6. a rotary tillage shaft; 7. a turntable; 8. a blade; 9. rotating the rod; 10. a rotating shaft; 11. a roller; 12. a seeding cover plate; 13. seed scattering; 14. a seed spreading valve; 15. a compression bar; 16. pressing the shaft; 17. a fixing ring; 18. a rotating drum; 19. a squeegee; 20. a limiting rod; 21. adjusting the threaded rod; 22. a trenching rod; 23. a ball bearing; 24. a limiting ring; 25. a fertilizer box; 26. a fertilizer rod; 27. fertilizing a pipe; 28. a fertilizing valve; 29. seeding a glass cover plate; 30. fertilizing a glass cover plate; 31. shock attenuation lantern ring.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in figures 1 to 3, the corn no-tillage planter of the utility model comprises a seeding box 1, four groups of support rods 2, two groups of supports 3, two groups of connecting rods 4, two groups of rotary tillage rods 5, a rotary tillage shaft 6, a turntable 7, a plurality of groups of blades 8, two groups of rotating rods 9, a rotating shaft 10 and two groups of rollers 11, wherein a seeding cavity is arranged inside the seeding box 1, a seeding opening is arranged on the top of the seeding box 1 in a communicating manner, a seeding cover plate 12 is arranged in the seeding opening, the top ends of the four groups of support rods 2 are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom of the seeding box 1, the bottom ends of the four groups of support rods 2 are respectively connected with the left side and the right side of the top of the two groups of supports 3, the front ends and the rear ends of the two groups of connecting rods 4 are respectively connected with the left, the bottom ends of two groups of rotary tillage rods 5 are respectively provided with two groups of rotary tillage openings, the front end and the rear end of a rotary shaft are respectively rotatably connected with the two groups of rotary tillage openings, the middle part of a rotary plate 7 is sleeved at the middle part of a rotary tillage shaft 6, a plurality of groups of blades 8 are respectively and uniformly fixed on the periphery of the outer side of the rotary plate 7, the top ends of two groups of rotary rods 9 are respectively connected with the central positions of the bottoms of two groups of supports 3, the bottoms of two groups of rotary rods 9 are respectively provided with two groups of rotary openings, the front end and the rear end of a rotary shaft 10 are respectively rotatably connected with the two groups of rotary openings, the middle parts of two groups of rollers 11 are respectively connected with the front end and the rear end of the rotary plate at the rear side and the front side of the rotary plate at the front side, the bottom of a sowing box 1 is communicated with a sowing opening, the bottom of the sowing opening is communicated with a seed pipe 13, the top; the device also comprises two groups of pressing rods 15, pressing shafts 16, two groups of fixing rings 17, two groups of rotary drums 18, two groups of scraping plates 19, limiting rods 20 and an adjusting threaded rod 21, the top ends of the two groups of pressing rods 15 are respectively connected with the right sides of the bottoms of the two groups of supports 3, two groups of pressing ports are respectively arranged at the bottoms of the two groups of pressing rods 15, the front end and the rear end of each pressing shaft 16 are respectively connected with the two groups of pressing ports in a rotating mode, the two groups of fixing rings 17 are respectively fixed at the front sides of the bottoms of the pressing rods 15 positioned at the rear side and the rear sides of the bottoms of the pressing rods 15 positioned at the front side, the two groups of rotary drums 18 are respectively sleeved at the front sides and the rear sides of the pressing shafts 16, the front ends and the rear ends of the two groups of rotary drums 18 are respectively connected with the front ends, the middle parts and the rear ends of the two groups of rotary drums 18, the front ends of one group of the scraping plates 19 in the two groups of the scraping plates 19 are connected with the left sides of the rear ends, the two groups of scraping plates 19 are connected with each other, the two groups of scraping plates 19 are positioned on the front sides of the two groups of rotary drums 18, a certain gap exists between the two groups of scraping plates 19 and the two groups of rotary drums 18, the limiting rod 20 is positioned between the two groups of rotary drums 18, a plurality of groups of limiting holes are uniformly formed in the limiting rod 20, two groups of limiting threaded holes are respectively formed in the middle parts of the right sides of the two groups of fixing rings 17, the front end and the rear end of the adjusting threaded rod 21 are respectively screwed in the two groups of limiting threaded holes, and the middle part of the adjusting threaded rod; after the corn is sowed, the scraper at the rear side of the seed sowing pipe can scrape soil which is rotationally ploughed by the blade into the groove again, and then the corn seeds are covered with soil and pressed by the rotation of the two groups of rotary drums, so that the corn sowing efficiency is improved, and meanwhile, the soil covering and pressing effects of the corn are kept consistent, so that the uniformity of the emergence rate and the yield of the corn in the future is ensured; in addition, before scraper blade and rotary drum carry out the earthing, can twist out adjusting threaded rod, then reciprocate the gag lever post, then make adjusting threaded rod pass different spacing holes on the gag lever post to change the length that the gag lever post bottom stretches out solid fixed ring bottom, and place the gag lever post bottom in the ditch inslot, thereby adjust the terrain clearance of scraper blade and rotary drum, thereby change the earthing thickness of maize kind, thereby adjust the depth of planting in the maize, thereby improve flexibility and convenience when the device uses.

The corn no-tillage seeding device of the utility model also comprises a ditching rod 22, the top of the ditching rod 22 is fixed between the left sides of the bottoms of the two groups of brackets 3, the ditching rod 22 is positioned at the rear side of the multiple groups of blades 8, and the ditching rod 22 is positioned at the front side of the seed sowing pipe 13; after the blades carry out rotary tillage on the soil, the furrowing rods are used for arranging the rotary tillage grooves, and the soil rows in the grooves are extruded out of the grooves by the advancing of the device, so that the sowing of the sowing seeds is facilitated.

The utility model discloses a corn no-tillage seeding device, which also comprises two groups of ball bearings 23, the inner sides of the two groups of ball bearings 23 are respectively connected with the front end and the rear end of the pressing shaft 16, and the outer sides of the two groups of ball bearings 23 are respectively connected with the front end and the rear end inside the rotary drum 18; set up ball bearing through the junction position at rotary drum and suppression axle, can make the rotary drum more smooth and easy at the epaxial rotation of suppression, thereby improve the earthing and suppression effect of device to the maize kind to improve the seeding effect of maize kind.

The corn no-tillage seeding device of the utility model also comprises four groups of limiting rings 24, wherein the four groups of limiting rings 24 are respectively positioned at the front side and the rear side of the two groups of ball bearings 23, and the four groups of limiting rings 24 are respectively sleeved at the front end and the rear end of the pressing shaft 16; can carry on spacingly to two sets of ball bearings through four sets of spacing rings, avoid ball bearing to take place to shift or the phenomenon that drops at the rolling in-process to guarantee ball bearing's normal use, improve the stability of device.

The utility model discloses a maize no-tillage seeder, still include fertilizer case 25 and two sets of fertilizer pole 26, fertilizer case 25 left side is connected with seeding case 1 right side, the top of two sets of fertilizer pole 26 is connected with the right front side and the right back side of fertilizer case 25 bottom respectively, the bottom of two sets of fertilizer pole 26 is connected with the right side at two sets of supports 3 tops respectively, be provided with the fertilizer chamber in the fertilizer case 25, fertilizer case 25 top intercommunication is provided with the fertilizer mouth, the fertilizer lid is installed with the fertilizer apron in the fertilizer mouth, fertilizer case 25 bottom intercommunication is provided with the fertilization mouth, fertilization mouth bottom intercommunication is provided with fertilization pipe 27, fertilization pipe 27 top intercommunication is provided with fertilization valve 28, fertilization pipe 27 bottom is located the bottom right side of seed spraying pipe 13, fertilization pipe 27 bottom is located the 19 front sides of two sets of scraper blades; when the device is used for sowing, a proper amount of fertilizer is added into the fertilizer box, then the fertilizer valve is opened, and when the device is used for sowing, a proper amount of fertilizer is sowed in the groove, so that the germination and growth of corn seeds are promoted.

The corn no-tillage seeding device of the utility model also comprises a seeding glass cover plate 29, the left side of the seeding box 1 is communicated with a seeding observation port, and the seeding glass cover plate 29 is arranged in the seeding observation port; can observe the surplus of the interior seed of seeding case through seeding glass apron to when the seed surplus is not enough, can in time add maize seed to the seeding incasement, thereby guarantee the normal use of device.

The corn no-tillage seeding device of the utility model also comprises a fertilizing glass cover plate 30, the left side of the fertilizer box 25 is communicated with a fertilizing viewing port, and the fertilizing glass cover plate 30 is arranged in the fertilizing viewing port; can observe the surplus of fertilizer in the fertilizer case through fertilization glass apron to when the fertilizer surplus was not enough, can in time add fertilizer in to the fertilizer case, thereby guarantee the normal use of device.

The corn no-tillage seeding device of the utility model also comprises two groups of damping lantern rings 31, wherein the two groups of damping lantern rings 31 are respectively sleeved outside the two groups of rollers 11; the vibration of the roller can be reduced through the two groups of damping lantern rings when the ground is uneven, so that the vibration sense of the device is reduced, and the device is more stable when the device runs.

The utility model discloses a no-tillage seeder of maize, it is when using, pulls through external power equipment the device advances in the field, then drives multiunit blade through external motor and carries out the rotary tillage to the soil, then clears up the slot through the ditching pole, then scatters maize seed in the slot through scattering the kind pipe, simultaneously, fertilizes maize seed through the pipe that fertilizies, then covers soil on maize seed through the scraper blade, and suppresses soil through the rotation of rotary drum, thereby protects soil moisture to the seed; in addition, the height of the limiting rod is adjusted to adjust the thickness of the corn seed covering soil.

The utility model discloses a maize no-tillage seeder, above the mounting means, the connected mode or the mode that sets up of all parts are common mechanical type to the concrete structure, model and the coefficient index of its all parts are its from taking the technique, as long as can reach all can implementing of its beneficial effect, so no longer give unnecessary details here.

In the present invention, the terms "upper, lower, left, right, front, back, inside and outside" are used only to indicate the orientation of the corn in the normal use state or to be commonly understood by those skilled in the art, and should not be construed as limiting the scope of the corn. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only. In the present invention, the terms "first", "second" and "third" do not denote any particular quantity or order, but are merely used to distinguish names.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A corn no-tillage seeding device comprises a seeding box (1), four groups of supporting rods (2), two groups of brackets (3), two groups of connecting rods (4), two groups of rotary tillage rods (5), a rotary tillage shaft (6), a turntable (7), a plurality of groups of blades (8), two groups of rotating rods (9), a rotating shaft (10) and two groups of rollers (11), wherein a seeding cavity is arranged inside the seeding box (1), the top of the seeding box (1) is communicated with a seeding port, a seeding cover plate (12) is arranged in the seeding port, the top ends of the four groups of supporting rods (2) are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom of the seeding box (1), the bottom ends of the four groups of supporting rods (2) are respectively connected with the left side and the right side of the top of the two groups of brackets (3), the front ends and the rear ends of the two groups of, the top ends of two groups of rotary tillage frames are respectively fixed at the front side and the rear side of the bottom of a connecting rod (4) positioned at the left side, the bottom ends of two groups of rotary tillage rods (5) are respectively provided with two groups of rotary tillage openings, the front end and the rear end of a rotating shaft are respectively and rotatably connected with the two groups of rotary tillage openings, the middle part of a rotary disk (7) is sleeved at the middle part of a rotary tillage shaft (6), a plurality of groups of blades (8) are respectively and uniformly fixed at the periphery of the outer side of the rotary disk (7), the top ends of two groups of rotary rods (9) are respectively connected with the central positions of the bottoms of two groups of brackets (3), the bottoms of two groups of rotary rods (9) are respectively provided with two groups of rotary openings, the front end and the rear end of the rotating shaft (10) are respectively and rotatably connected with the two groups of rotary openings, the middle parts of two groups of rollers (11) are respectively, the seeding box is characterized by comprising two groups of pressing rods (15), pressing shafts (16), two groups of fixing rings (17), two groups of rotary drums (18), two groups of scraping plates (19), limiting rods (20) and adjusting threaded rods (21), wherein the top ends of the two groups of pressing rods (15) are respectively connected with the right sides of the bottoms of the two groups of supports (3), the bottoms of the two groups of pressing rods (15) are respectively provided with two groups of pressing ports, the front end and the rear end of each pressing shaft (16) are respectively rotatably connected with the two groups of pressing ports, the two groups of fixing rings (17) are respectively fixed on the front side of the bottom of the pressing rod (15) positioned on the rear side and the rear side of the bottom of the pressing rod (15) positioned on the front side, two groups of rotary drums (18) are respectively sleeved on the front side and the rear side of a pressing shaft (16), the front ends and the rear ends of the two groups of rotary drums (18) are respectively connected with the front end, the middle part and the rear end of the pressing shaft (16), a certain distance exists between the front and the rear of the two groups of rotary drums (18), the front end of one group of scraper blades (19) in the two groups of scraper blades (19) is connected with the left side of the rear end of a fixing ring (17) positioned on the front side, the rear end of the other group of scraper blades (19) in the two groups of scraper blades (19) is connected with the left side of the front end of the fixing ring (17) positioned on the rear side, the two groups of scraper blades (19) are mutually connected, the two groups of scraper blades (19) are both positioned on the front sides of the two groups of rotary drums (18), a certain gap exists between the two groups of scraper blades (19) and the two groups of rotary drums (18), a limiting rod (20) is positioned between the two groups of rotary, the front end and the rear end of the adjusting threaded rod (21) are respectively screwed in the two groups of limiting threaded holes, and the middle part of the adjusting threaded rod (21) penetrates through one group of limiting holes in the multiple groups of limiting holes.

2. The no-tillage corn sowing device as claimed in claim 1, further comprising a ditching rod (22), wherein the top of the ditching rod (22) is fixed between the left sides of the bottoms of the two sets of brackets (3), the ditching rod (22) is positioned at the rear side of the multiple sets of blades (8), and the ditching rod (22) is positioned at the front side of the seed sowing pipe (13).

3. The no-tillage planting device for corn as claimed in claim 2, further comprising two sets of ball bearings (23), wherein the inner sides of the two sets of ball bearings (23) are connected to the front end and the rear end of the pressing shaft (16), respectively, and the outer sides of the two sets of ball bearings (23) are connected to the front end and the rear end of the interior of the rotating drum (18), respectively.

4. The no-tillage planting device for corn as claimed in claim 3, further comprising four sets of position-limiting rings (24), wherein the four sets of position-limiting rings (24) are respectively located at the front side and the rear side of the two sets of ball bearings (23), and the four sets of position-limiting rings (24) are respectively sleeved at the front end and the rear end of the suppressing shaft (16).

5. The corn no-tillage seeding device according to claim 4, further comprising a fertilizer box (25) and two groups of fertilizer rods (26), wherein the left side of the fertilizer box (25) is connected with the right side of the seeding box (1), the top ends of the two groups of fertilizer rods (26) are respectively connected with the right front side and the right rear side of the bottom of the fertilizer box (25), the bottom ends of the two groups of fertilizer rods (26) are respectively connected with the right sides of the tops of the two groups of supports (3), a fertilizer cavity is arranged in the fertilizer box (25), the top of the fertilizer box (25) is communicated with a fertilizer port, a fertilizer cover plate is arranged in the fertilizer port in a covering mode, a fertilizer applying port is communicated with the bottom of the fertilizer box (25), a fertilizer applying pipe (27) is communicated with the bottom of the fertilizer applying pipe (27), a fertilizer applying valve (28) is communicated with the top end of the fertilizer applying pipe (27) and is positioned on the right side of the bottom of the seed applying pipe (13), and the.

6. The no-tillage seeding device for corn as claimed in claim 5, further comprising a seeding glass cover plate (29), wherein a seeding observation port is arranged on the left side of the seeding box (1) in a communicating manner, and the seeding glass cover plate (29) is arranged in the seeding observation port.

7. The no-tillage seeding device for corn as claimed in claim 6, further comprising a fertilizing glass cover plate (30), wherein a fertilizing observation port is arranged on the left side of the fertilizer box (25) in a communicating manner, and the fertilizing glass cover plate (30) is arranged in the fertilizing observation port.

8. The no-tillage seeding device for corn as claimed in claim 7, further comprising two sets of damping rings (31), wherein the two sets of damping rings (31) are respectively sleeved outside the two sets of rollers (11).