CN204616336U - A kind of not rounded seed single-grain precision seeding apparatus - Google Patents

Abstract

The utility model relates to a single-grain precision seed metering device for non-round seeds, which comprises a seed metering device installation tube (1), a seed storage tank (2) at the top, and a seed injection nozzle (10) at the bottom. There is an opening at the bottom of the groove (2) located in the seed metering device installation tube (1), and a displacement adjustment module (5) is arranged at the opening, and a displacement adjustment module (5) is arranged at the opening directly above the seeding nozzle (10). There are a seed diversion cone (6), a hole plate (8), and a seed protection and throwing disc (9). The side wall of the seed diversion cone (6) is provided with a seed cleaning module (7), and the transmission The shaft (4) passes through the displacement adjustment module (5), the seed diversion cone (6), the hole plate (8), and the seed protector from top to bottom along the axial direction of the seed metering device installation cylinder (1). Seed dish (9), the top of power transmission shaft (4) is connected with driving wheel (3). The seed metering device described in the utility model has high single-seed rate, small seed damage, convenient use and strong adaptability during the sowing process of non-round seeds, and can stably and efficiently complete single-grain precision seeding of non-round seeds.

Description

A precision metering device for non-round seeds

technical field

The utility model relates to the technical field of agricultural machinery, in particular to a single precision seed metering device for non-round seeds. Especially for the device of single grain precision sowing of agricultural machinery.

Background technique

At present, the precision sowing technology is a mechanized planting technology in which a certain number of seeds are planted in holes in the soil according to the agronomic cultivation requirements of the crops. It creates the best conditions for growth, and can save a lot of seeds, reduce labor for thinning, and improve crop yield and quality. It is a cost-saving and efficiency-enhancing engineering technology with remarkable effects. Therefore, modern agriculture requires more and more precision seeding. Especially in recent years, breeding, seed processing, agronomic cultivation and other technologies have been continuously developed and improved, which has greatly improved the germination rate and seedling preservation rate of seeds, and made the precision sowing technology more reliable, thus putting forward higher requirements for precision sowing. Requirements, single-grain precision seeding has become the most potential research hotspot at present, and has been widely used at home and abroad.

From the current research, in addition to the single-seed precision sowing applied to row crops such as corn, soybean, and cotton, there are more and more researches and applications of single-seed precision sowing on rice, non-round seeds, wheat, vegetables and other crops. The research results show that single-seed precision sowing with more precision sowing can obtain more uniform plant distribution, which is a new production and cultivation technology that saves costs and increases efficiency, and has a significant effect on high-yield and high-yield. Single seed precision sowing has become the main feature of modern sowing technology and the main development direction of sowing technology.

In single seed precision sowing high-yield cultivation technology, precision seed metering is one of the key technologies to realize precision seeding, and precision seed metering device is the core component of precision seeder. Our country began to research and promote precision seeding technology in the 1970s, but it has not been widely used so far. The main reason is that there is no suitable precision seed metering device. In recent years, there have been many studies on single-grain precision seed metering devices, mainly focusing on soybeans, corn and other regular round or nearly round seeds, which can basically achieve single-grain precision seed metering, but for most non- For round seeds, the filling process is extremely complicated, and it is still a technical difficulty to realize single-seed precision seeding.

In terms of agronomy, with the continuous demonstration and popularization of new single-seed precision sowing high-yield cultivation techniques, single-seed precision seed metering devices suitable for non-round seeds have become an urgent need, and it has become a trend for more and more crops to implement single-seed precision sowing. In order to promote the modern agricultural production technology of "saving costs and increasing efficiency" of single seed precision sowing, agricultural machinery and agronomy are combined. Research and design of a single-grain precision seed metering device with simple structure, stable performance, reliable operation and strong adaptability to improve the single-grain filling rate and reduce the broken rate is an urgent problem to be solved at present. It is necessary to improve economic benefits and reduce production costs. Accelerating the development of planting production mechanization has important practical significance.

Utility model content

Aiming at the defects existing in the prior art, the purpose of this utility model is to provide a non-round seed single seed precision metering device, which has high single seed rate, small seed damage, convenient use and good adaptability during the sowing process of non-round seeds. It is strong and can stably and efficiently complete single-seed precision seeding of non-round seeds.

For achieving above object, the technical scheme that the utility model takes is:

A non-round seed single-grain precision metering device is characterized in that it includes:

The seed metering device installation tube 1 has a seed storage tank 2 on the top and a seed injection nozzle 10 on the bottom,

The seed storage tank 2 is provided with an opening at the bottom of the tank located in the seed meter installation tube 1, and the opening is provided with a displacement adjustment module 5,

Directly above the seeding nozzle 10, a seed diversion cone 6, a shaped hole plate 8, and a seed-protecting seeding plate 9 are sequentially arranged from top to bottom.

The side wall of the seed diversion cone 6 is provided with a seed-throwing and clearing module 7,

The transmission shaft 4 passes through the displacement adjustment module 5, the seed diversion cone 6, the hole plate 8, and the seed protection plate 9 from top to bottom along the axial direction of the seed metering device installation tube 1,

The top of transmission shaft 4 is connected with drive wheel 3.

On the basis of the above-mentioned technical solution, the seed metering device installation cylinder 1 includes:

Cylindrical barrel 11, on the outer surface of barrel 11, is provided with mounting plate 12 symmetrically along the vertical direction left and right,

The top of the mounting plate 12 is provided with several vertically arranged seed tank adjustment mounting holes 13 .

On the basis of above-mentioned technical scheme, seed storage tank 2 comprises:

Cylindrical fixed installation tube 15, which is sleeved on the upper end of cylinder body 11,

The conical seed storage area 16 is an inverted conical shape with a large top and a small bottom, and its upper end is fixed on the upper end of the fixed installation cylinder 15,

On the cylinder wall of the fixed installation cylinder 15, there are left and right symmetrical mounting plate positioning guide grooves 18 for accommodating the mounting plate 12,

On both sides of the mounting plate positioning guide groove 18, a seed storage tank mounting plate 14 is respectively provided,

The bottom of the seed tank mounting plate 14 is provided with a seed tank mounting hole 17 .

On the basis of the above-mentioned technical scheme, the orifice plate 8 comprises:

Circular disc body, on which there is a center mounting hole 21 for the center of the orifice disc, and the center mounting hole 21 for the center of the orifice disc is adapted to the transmission shaft 4,

Its upper surface is provided with a circle of seed-shaped holes 19 along the periphery, and the seed-shaped holes 19 run through the upper and lower surfaces of the disc body, and the shape of the seed-shaped holes 19 is adapted to the shape of non-circular seeds that require single precision seeding,

A seed-throwing and clearing module guide groove 20 is provided between adjacent seed-shaped holes 19 , and the center of the seed-shaped hole 19 is located on the center line of the seed-throwing and clearing module guide groove 20 .

On the basis of above-mentioned technical scheme, seed-protecting dish 9 comprises:

Circular disc body, one side edge is provided with seeding groove 22, and seeding groove 22 is a fan-shaped gap,

On the upper surface of the circular disc body, a circle of seed guide grooves 23 is provided along the periphery,

The seed guide groove 23 is cut off at the seeding groove 22,

The center of the circular disc body is provided with a center mounting hole 24 for the seed protection and seeding disc axis, which is adapted to the transmission shaft 4 .

On the basis of the above technical solution, the seed guide groove 23 is a concave arc groove with a central angle of 60-120° and a radius equal to the maximum height of the lying seeds.

On the basis of the above-mentioned technical scheme, the seed diversion cone 6 includes:

A circular disc body, the upper surface of which is a conical diversion surface 26, the angle between the conical diversion surface 26 and the horizontal plane is 25° to 45°,

The top of the conical diversion surface 26 is centered with a seed diversion cone mounting boss,

The seed diversion cone installation boss is provided with the seed diversion cone installation hole 25 along the axial direction, and the seed diversion cone installation hole 25 is adapted to the transmission shaft 4,

The circumferential side of the circular disc is provided with a seed throwing and clearing module installation hole 27 .

On the basis of the above-mentioned technical scheme, the seed-throwing and seed-clearing module 7 includes:

Fan-shaped main body, its radian is adapted to the circumferential arc surface of the circular disc body of the seed diversion cone 6,

The top front side of the fan-shaped main body is an inclined downward seed thinning part 28, and its side is provided with a fixed installation hole 29 adapted to the installation hole 27 of the seed-throwing and clearing module.

The bottom surface of the fan-shaped main body is provided with a seed orientation groove 32 running through its front and rear sides,

The seed orientation groove 32 is an arc-shaped groove protruding to the top surface of the fan-shaped main body,

The seed directional slot 32 is provided with a tongue 33 for clearing and throwing seeds,

Seed throwing and clearing tongue 33 is an arc-shaped plate, which is centered in the seed orientation groove 32. The throwing and clearing tongue 33 is adapted to the guide groove 20 of the throwing and clearing module. Slip in the clearing module guide groove 20.

On the basis of the above technical solution, the seed-throwing and clearing tongue 33 includes: a seed-throwing part 30 and a seed-clearing part 31,

The seeding part 30 is arc-shaped and is located at the front end of the arc-shaped plate.

The seed clearing part 31 is an arc-shaped protrusion located at the rear end of the arc-shaped plate.

On the basis of the above technical solutions, the displacement adjustment module 5 includes:

The frustum-shaped main body, its side 35 is an adjustment cone surface, and its top surface is centered with a displacement adjustment module mounting hole 34,

Adjust the angle between the conical surface and the horizontal plane to be 25°-45°.

On the basis of the above technical solution, the seeding nozzle 10 is a funnel-shaped structure, including:

Inverted cone-shaped diversion groove 36 is provided with seeding tube 37 in the center of its bottom surface.

On the basis of the above technical solution, the side wall of the orifice plate 8 is fixedly installed on the seed meter installation cylinder 1 .

The non-round seed single seed precision metering device described in the utility model has high single seed rate, small seed damage, convenient use and strong adaptability during the sowing process of non-round seeds, and can complete non-round seed single seed stably and efficiently. Precision seeding.

Description of drawings

The utility model has following drawings:

Fig. 1 is a sectional view of the structure of the utility model;

Fig. 2 is a schematic diagram of the installation cylinder of the seed metering device of the present invention;

Fig. 3 is the schematic diagram of the storage tank of the utility model;

Fig. 4 is a side view of Fig. 3;

Fig. 5 is the schematic diagram of the hole plate of the utility model;

Fig. 6 is a schematic diagram of the seed protection and seed throwing tray of the present utility model;

Fig. 7 is the schematic view of the seed diversion cone of the present utility model;

Fig. 8 is a schematic diagram of the seed-throwing and seed-clearing module of the present utility model;

Fig. 9 is an axonometric view of the seed-throwing and seed-clearing module of the present utility model;

Figure 10 is a bottom view of Figure 9;

Fig. 11 is a schematic diagram of the displacement regulating module of the present invention;

Fig. 12 is a schematic diagram of the installation of the transmission shaft parts of the present utility model;

Fig. 13 is a schematic view of the seeding nozzle of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1 to 13, the non-round seed single-grain precision metering device described in the utility model includes:

The seed metering device installation tube 1 has a seed storage tank 2 on the top and a seed injection nozzle 10 on the bottom,

The seed storage tank 2 is provided with an opening at the bottom of the tank located in the seed meter installation tube 1, and the opening is provided with a displacement adjustment module 5,

Directly above the seeding nozzle 10, a seed diversion cone 6, a hole plate 8, and a seed-protecting seeding plate 9 are arranged successively from top to bottom.

The side wall of the seed diversion cone 6 is provided with a seed-throwing and clearing module 7,

The transmission shaft 4 passes through the displacement adjustment module 5, the seed diversion cone 6, the hole plate 8, and the seed protection and feeding plate 9 from top to bottom along the axial direction of the seed meter installation cylinder 1, so that the displacement can be adjusted The module 5, the seed diversion cone 6, the hole plate 8, and the seed protection and feeding plate 9 are all coaxial with the seed meter installation cylinder 1,

The top of transmission shaft 4 is connected with drive wheel 3.

On the basis of the above technical solution, as shown in Figures 1 and 2, the seed meter installation cylinder 1 includes:

Cylindrical barrel 11, on the outer surface of barrel 11, there are mounting plates 12 arranged symmetrically along the vertical direction.

The mounting plate 12 is a rectangular plate, and its top surface and bottom surface are respectively flush with the top surface and the bottom surface of the cylinder body 11,

The top of the mounting plate 12 is provided with several vertically arranged seed tank adjustment mounting holes 13,

The seed tank adjusts the mounting holes 13 to be evenly distributed at equal intervals.

On the basis of above-mentioned technical scheme, as shown in Figure 1, 3, 4, seed storage tank 2 comprises:

Cylindrical fixed installation cylinder 15, which is sleeved on the upper end of the cylinder body 11, the inner diameter of the fixed installation cylinder 15 is adapted to the outer diameter of the cylinder body 11,

The conical seed storage area 16 is an inverted conical shape with a large top and a small bottom. Its upper end is fixed on the upper end of the fixed installation tube 15, and its lower end (small diameter end) is the bottom of the groove, which is provided with an opening.

On the cylinder wall of the fixed installation cylinder 15, there are left and right symmetrical mounting plate positioning guide grooves 18 for accommodating the mounting plate 12,

On both sides of the mounting plate positioning guide groove 18, a seed storage tank mounting plate 14 is respectively provided,

The seed tank mounting plate 14 bottom is provided with the seed tank mounting hole 17, and the seed storage tank mounting hole 17 is adapted to the seed tank adjusting mounting hole 13.

The seed storage tank 2 is positioned concentrically with the seed meter installation tube 1 through the fixed installation cylinder 15, the installation plate 12 is placed in the positioning guide groove 18 of the installation plate, and is installed in the seed storage tank adjustment installation hole 13 and the seed storage tank installation hole 17 bolt-on installation.

On the basis of the above technical solution, as shown in Figures 1 and 5, the orifice plate 8 includes:

Circular disc body, on which there is a center mounting hole 21 for the center of the orifice disc, and the center mounting hole 21 for the center of the orifice disc is adapted to the transmission shaft 4,

Its upper surface is provided with a circle of seed-shaped holes 19 along the periphery, and the seed-shaped holes 19 run through the upper and lower surfaces of the disc body, and the shape of the seed-shaped holes 19 is adapted to the shape of non-circular seeds that require single precision seeding, which is Based on seed-shaped vias,

A seed-throwing and clearing module guide groove 20 is provided between adjacent seed-shaped holes 19 , and the center of the seed-shaped hole 19 is located on the center line of the seed-throwing and clearing module guide groove 20 .

When sowing non-circular seeds of different shapes, it is necessary to replace the appropriate hole plate 8 accordingly.

On the basis of above-mentioned technical scheme, as shown in Figure 1, 6, seed-protecting throwing disc 9 comprises:

Circular disc body, one side edge is provided with seeding groove 22, and seeding groove 22 is a fan-shaped gap,

On the upper surface of the circular disc body, a circle of seed guide grooves 23 is provided along the periphery,

The seed guide groove 23 is cut off at the seeding groove 22,

The center of the circular disc body is provided with a center mounting hole 24 for the seed protection and seeding disc axis, which is adapted to the transmission shaft 4 .

On the basis of the above technical solution, the seed guide groove 23 is a concave arc groove with a central angle of 60-120° and a radius equal to the maximum height of the lying seeds.

On the basis of the above technical solution, as shown in Figures 1 and 7, the seed diversion cone 6 includes:

A circular disc body, the upper surface of which is a conical diversion surface 26, the angle between the conical diversion surface 26 and the horizontal plane is 25° to 45°,

The top of the conical diversion surface 26 is centered with a seed diversion cone mounting boss,

The seed diversion cone installation boss is provided with the seed diversion cone installation hole 25 along the axial direction, and the seed diversion cone installation hole 25 is adapted to the transmission shaft 4,

The circumferential side of the circular disc is provided with a seed throwing and clearing module installation hole 27 .

On the basis of the above technical solutions, as shown in Figures 1, 8, 9, and 10, the seed-throwing and clearing module 7 is located between the seed diversion cone 6 and the seed meter installation cylinder 1, and the seed-throwing and clearing module 7 includes :

Fan-shaped main body, its radian is adapted to the circumferential arc surface of the circular disc body of the seed diversion cone 6,

The top front side of the fan-shaped main body is an inclined downward seed thinning part 28, and its side is provided with a fixed installation hole 29 adapted to the installation hole 27 of the seed-throwing and clearing module.

The bottom surface of the fan-shaped main body is provided with a seed orientation groove 32 running through its front and rear sides,

The seed orientation groove 32 is an arc-shaped groove protruding to the top surface of the fan-shaped main body,

The seed directional groove 32 is provided with a tongue 33 for clearing and throwing seeds,

Seed throwing and clearing tongue 33 is an arc-shaped plate, which is centered in the seed orientation groove 32. The throwing and clearing tongue 33 is adapted to the guide groove 20 of the throwing and clearing module. Slip in the clearing module guide groove 20.

Furthermore, the seed-throwing and clearing tongue 33 includes: a seed-throwing part 30 and a seed-clearing part 31,

The seeding part 30 is arc-shaped and is located at the front end of the arc-shaped plate.

The seed clearing part 31 is an arc-shaped protrusion located at the rear end of the arc-shaped plate.

The throwing and clearing tongue 33 on the throwing and clearing module 7 is movably installed in the guide groove 20 of the throwing and clearing module; The bolts in the seed clearing module mounting holes 27 are fixedly installed on the seed diversion cone 6 .

On the basis of the above technical solution, as shown in Figures 1 and 11, the displacement adjustment module 5 includes:

The frustum-shaped main body, its side 35 is an adjustment cone surface, and its top surface is centered with a displacement adjustment module mounting hole 34,

Adjust the angle between the conical surface and the horizontal plane to be 25°-45°.

On the basis of the above technical solution, as shown in Figures 1 and 13, the seeding nozzle 10 is a funnel-shaped structure, including:

Inverted cone-shaped diversion groove 36 is provided with seeding tube 37 in the center of its bottom surface.

On the basis of the above technical solution, the side wall of the orifice plate 8 is fixedly installed on the seed meter installation cylinder 1 .

The working process of the non-round seed single grain precision metering device described in the utility model is as follows:

First, the seed storage tank 2 is fixedly installed in a suitable seed storage tank adjustment installation hole 13 to ensure that the adjustment cone surface on the displacement adjustment module 5 and the opening gap at the bottom of the seed storage tank meet the seed size;

Then, the seeds are dropped into the conical seed storage area 16 in the seed storage tank 2, the seeds flow out from the gap between the adjustment cone surface and the bottom opening of the seed storage tank 2, and the seeds then fall to the conical shape of the seed diversion cone 6. On the diversion surface 26, under the action of the conical diversion surface 26, it flows into the space above the seed-shaped hole 19. Under the action of gravity, friction and centrifugal force, the seeds are evenly arranged along the long axis direction. Under the action of the seed enters the seed hole;

The power drives the transmission shaft 4 to rotate through the drive wheel 3, and the transmission shaft 4 drives the displacement adjustment module 5 and the seed diversion cone 6 to rotate;

Now, the seed-throwing and clearing module 7 rotates with the seed diversion cone 6, and the seeds in the seed-shaped holes 19 enter below the seed-throwing and clearing module 7 through the seed orientation groove 32, and under the action of the seed-throwing part 30, the seeds enter The seed-shaped hole 19 falls from the seeding groove 22; the seed-throwing and clearing module 7 continues to rotate, and the clearing part 31 completes the clearing effect, and the seeds falling from the seeding groove 22 are under the action of the inverted cone-shaped diversion groove 36 Flow to the seeding pipe 37, and complete the seeding process through the seeding pipe 37.

By controlling the thickness of the seed layer, the device can increase the seed filling capacity of the hole and increase the accuracy of seed throwing and clearing through the fixed hole plate and the rotating seed clearing parts, and realize the improvement of the single grain of non-round seeds during the seeding process. Seed filling rate, lower breakage rate, simple structure, stable performance, reliable operation, this device solves the urgent problem of non-round seed single-grain precision sowing, which is helpful for improving economic benefits, reducing production costs, and accelerating the mechanization of non-round seed production development has important practical significance.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modification or equivalent replacement of the technical solution without departing from the spirit and scope of the technical solution of the utility model, all of which shall be covered in the scope of the utility model claims.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Claims (12)

1. a not rounded seed single-grain precision seeding apparatus, is characterized in that, comprising:

Seeding unit mounting cylinder (1), its top is provided with kinds of bank deposits groove (2), is provided with mouth of charging seed (10) bottom it,

The bottom land that kinds of bank deposits groove (2) is positioned at seeding unit mounting cylinder (1) is provided with opening, and opening part is provided with discharge capacity adjustment module (5),

Directly over mouth of charging seed (10), be provided with seed water conservancy diversion frustum (6), nibs dish (8) from top to bottom successively, protect kind of a throwing disk (9),

The sidewall of seed water conservancy diversion frustum (6) is provided with to charge seed plants clearly module (7),

Power transmission shaft (4) is along the axis of seeding unit mounting cylinder (1), pass discharge capacity adjustment module (5), seed water conservancy diversion frustum (6), nibs dish (8) from top to bottom successively, protect kind of a throwing disk (9)

The top of power transmission shaft (4) is connected with driving wheel (3).

2. not rounded seed single-grain precision seeding apparatus as claimed in claim 1, it is characterized in that, seeding unit mounting cylinder (1) comprising:

Columniform cylindrical shell (11), on the outer surface of cylindrical shell (11), is vertically symmetrically provided with installing plate (12),

The top of installing plate (12) is provided with some vertically disposed kinds of bank deposits grooves and regulates installing hole (13).

3. not rounded seed single-grain precision seeding apparatus as claimed in claim 2, it is characterized in that, kinds of bank deposits groove (2) comprising:

Columniform fixed installation cylinder (15), it is sleeved on the upper end of cylindrical shell (11),

Taper kinds of bank deposits region (16), big up and small down turbination, its upper end is fixed on the upper end of fixed installation cylinder (15),

On the barrel of fixed installation cylinder (15), the symmetrical installing plate positioning and guiding groove (18) be provided with for holding installing plate (12),

In the both sides of installing plate positioning and guiding groove (18), be respectively equipped with one piece of kinds of bank deposits groove installing plate (14),

Kinds of bank deposits groove installing plate (14) bottom is provided with kinds of bank deposits groove installing hole (17).

4. not rounded seed single-grain precision seeding apparatus as claimed in claim 1, it is characterized in that, nibs dish (8) comprising:

Circular disk body, it is provided with between two parties nibs dish axle center installing hole (21), and nibs dish axle center installing hole (21) is adaptive with power transmission shaft (4),

Surface is peripherally provided with a circle seed nibs (19) thereon, the upper and lower surface of seed nibs (19) through disk body, and the shape of seed nibs (19) and the shape adaptation of not rounded seed needing simple grain precision metering device,

Being provided with between adjacent seed nibs (19) charge seed clearly plant module guide groove (20), seed nibs (19) be centrally located at charge seed clearly plant module guide groove (20) center line on.

5. not rounded seed single-grain precision seeding apparatus as claimed in claim 4, is characterized in that, protect kind of a throwing disk (9) and comprising:

Circular disk body, one lateral edges is provided with groove of charging seed (22), and groove of charging seed (22) is a sector notch,

At the upper surface of circular disk body, be peripherally provided with a circle seed gathering sill (23),

Seed gathering sill (23) is truncated at groove of charging seed (22) place,

Circular disk body is provided with between two parties and protects kind of throwing disk axle center installing hole (24), protect kind of throwing disk axle center installing hole (24) adaptive with power transmission shaft (4).

6. not rounded seed single-grain precision seeding apparatus as claimed in claim 5, it is characterized in that: seed gathering sill (23) is recessed deep-slotted chip breaker, and its central angle is 60-120 °, its radius is the seed maximum height that couches.

7. not rounded seed single-grain precision seeding apparatus as claimed in claim 4, it is characterized in that, seed water conservancy diversion frustum (6) comprising:

Circular disk body, its upper surface is conical flow guiding face (26), and conical flow guiding face (26) are 25 ° ~ 45 ° with the angle of horizontal plane,

Be provided with seed water conservancy diversion frustum at the top of conical flow guiding face (26) between two parties and projection be installed,

Seed water conservancy diversion frustum is installed projection and is provided with seed water conservancy diversion frustum installing hole (25) vertically, and seed water conservancy diversion frustum installing hole (25) is adaptive with power transmission shaft (4),

The peripheral side of circular disk body is provided with to charge seed plants module installing hole (27) clearly.

8. not rounded seed single-grain precision seeding apparatus as claimed in claim 7, is characterized in that, charges seed to plant clearly module (7) and comprising:

Fan-shaped main body, the circumferential cambered surface of the circular disk body of its radian and seed water conservancy diversion frustum (6) is adaptive,

Be thin kind of portion (28) under being tilted on front side of the end face of fan-shaped main body, its side is provided with and charges seed plants clearly the adaptive fixed installation hole (29) of module installing hole (27),

The bottom surface of fan-shaped main body is provided with the seed guide slot (32) of its front and back sides through,

Seed guide slot (32) is the arc groove to fan-shaped main body end face projection,

Being provided with in seed guide slot (32) charges seed plants clearly tongue (33),

Charge seed and plant clearly tongue (33) for circular arc plate, be located in seed guide slot (32) between two parties, charge seed and plant clearly tongue (33) and charge seed that to plant clearly module guide groove (20) adaptive, charge seed plant clearly tongue (33) can in slippage in kind module guide groove (20) clearly of charging seed.

9. not rounded seed single-grain precision seeding apparatus as claimed in claim 8, is characterized in that, charges seed to plant clearly tongue (33) and comprising: portion of charging seed (30) and clearly kind portion (31),

Charge seed portion (30) in circular arc, be positioned at the front end of circular arc plate,

Clear kind of portion (31) is arc-shaped convex, is positioned at the rear end of circular arc plate.

10. not rounded seed single-grain precision seeding apparatus as claimed in claim 1, it is characterized in that, discharge capacity adjustment module (5) comprising:

Taper type main body, its side (35), for regulating the conical surface, its end face are provided with between two parties discharge capacity adjustment module installing hole (34),

The angle regulating the conical surface and horizontal plane is 25 ° ~ 45 °.

11. not rounded seed single-grain precision seeding apparatus as claimed in claim 1, it is characterized in that, mouth of charging seed (10) is funnel-shaped structure, comprising:

Back taper guiding gutter (36), its bottom surface is provided with discharging tube (37) between two parties.

12. not rounded seed single-grain precision seeding apparatus as claimed in claim 1, is characterized in that: the sidewall of nibs dish (8) is fixedly installed on seeding unit mounting cylinder (1).