Crop seeder

Abstract

The utility model relates to the technical field of seeding equipment, in particular to a crop seeding machine which comprises a frame, a seed sowing device is mounted at the bottom of the frame and comprises an annular shell, a partition ring is fixedly connected to the interior of the annular shell and used for partitioning the interior of the annular shell, a seed inlet cavity and a flow dividing cavity are formed, and the seed inlet cavity is communicated with the flow dividing cavity. A seed inlet cavity is formed in the frame, a separation ring is arranged in the seed inlet cavity, a rotatable seed guide wheel is arranged on one side of the separation ring and is positioned in the seed inlet cavity, and seed metering wheel spoons which are arranged in an annular array are fixedly connected to one side of the seed guide wheel and is positioned in the seed inlet cavity. A single seed rotates to an outlet of the seed metering device along with the U-shaped accommodating groove and is finally released into a furrow through the seed metering round pipe for seeding, so that the seed dispersion can be realized, the single seed is accommodated in the single U-shaped accommodating groove and is sequentially released for seeding, the single seed seeding is realized, the seed consumption can be reduced, and the seed cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sowing equipment technology, specifically a crop sowing machine. Background Technology

[0002] Crop sowing refers to the agricultural activity of sowing crop seeds into the soil according to agronomic requirements. It is the primary step in crop production. In large-scale crop sowing, seeders are usually used to increase the speed of crop sowing.

[0003] In the prior art, such as the seeder with a soil covering mechanism proposed in patent application number "CN202520272061.7", the seeder includes a frame, with wheels installed under the frame, and a sowing mechanism installed on the frame. Multiple sowing mechanisms are arranged at intervals along the crossbeams of the frame.

[0004] However, in the aforementioned patent application, the seeder uses a pipe as the sowing mechanism during sowing. During sowing, multiple seeds may fall into the furrows opened by the seeder through the pipe at a time, making it impossible to control the release amount. This results in a large amount of seeds being used during sowing, increasing the cost of seeds during sowing. Utility Model Content

[0005] The purpose of this invention is to provide a crop seeder to solve the problems mentioned in the background section.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A crop seeder includes a frame, with a seed metering device installed at the bottom of the frame. The seed metering device includes an annular housing, with a partition ring fixedly connected inside the annular housing. The partition ring is used to separate the interior of the annular housing and form a seed inlet chamber and a diversion chamber. A rotatable seed guide wheel is provided on one side of the partition ring and inside the seed inlet chamber. A seed metering wheel scoop arranged in a ring array is fixedly connected on one side of the seed guide wheel and inside the seed inlet chamber. One end of the seed metering wheel scoop has a positioning slot for positioning seeds.

[0008] A rotatable diversion ring is provided inside the annular shell and inside the diversion cavity. A connecting slot is provided on the diversion ring, and a U-shaped receiving slot is provided around the diversion ring. The U-shaped receiving slot is used to hold seeds and is connected to the seed inlet cavity through the connecting slot.

[0009] Preferably, a seed metering device fixing seat is fixedly installed on one side of the annular shell, and the seed metering device fixing seat is fixedly installed on the bottom of the vehicle frame.

[0010] Preferably, the two sides of the annular shell are respectively fixedly connected to the seed metering inlet and the seed metering outlet, the seed metering inlet is connected to the seed inlet chamber, and the seed metering outlet is connected to the diversion chamber.

[0011] The annular shell has an opening at its center, and a motor is installed on the outside of the annular shell. The rotating shaft of the motor passes through the opening at the center of the annular shell, and the outer surface of the rotating shaft is fixedly connected to the seed guide wheel and the flow divider, which is used to drive the seed guide wheel and the flow divider to rotate.

[0012] Preferably, a seed box and a power distribution box are installed on the top of the frame. The bottom of the seed box is fixedly connected to the seed metering device mounting base through a pipe, which is used to input the seeds inside the seed box into the inside of the seed metering device. A switch is installed on the frame, and the switch is electrically connected to the power distribution box.

[0013] Preferably, a front furrow opener and a rear furrow opener are installed at the bottom of the vehicle frame, a soil cover is installed at the bottom of the vehicle frame and on one side of the rear furrow opener, and a seed metering pipe is installed on one side of both the front furrow opener and the rear furrow opener.

[0014] The beneficial effects of this utility model are:

[0015] This invention utilizes a seed metering device installed at the bottom of the vehicle frame. By rotating the seed guide wheel and the diverting ring inside the seed metering device, individual seeds rotate along the U-shaped receiving trough to the seed metering device outlet, and are finally released into the opened furrows through the seed metering tube for sowing. This allows for seed dispersion, ensuring that individual seeds are contained within a single U-shaped receiving trough and released sequentially for sowing. It also allows for control of the seed release amount, achieving single-seed sowing, which reduces seed usage and lowers seed costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a utility model Figure 1 A schematic diagram of the structure at the bottom of the mid-frame;

[0019] Figure 3 This is a utility model Figure 1 Rear view of the mid-frame;

[0020] Figure 4 This is a utility model Figure 2 A schematic diagram of the front trencher section;

[0021] Figure 5 This is a utility model Figure 2Schematic diagram of the middle and rear trencher section;

[0022] Figure 6 This is a utility model Figure 2 A schematic diagram of the structure of the seed metering device;

[0023] Figure 7 This is a utility model Figure 6 Rear view of the middle annular shell;

[0024] Figure 8 This is a utility model Figure 6 Cross-sectional view of the middle annular shell;

[0025] Figure 9 This is a utility model Figure 6 A cross-sectional view of the annular shell.

[0026] The attached figures are labeled as follows:

[0027] 1. Frame; 2. Seed metering device; 201. Annular housing; 202. Divider ring; 203. Seed guide wheel; 204. Seed metering wheel scoop; 205. Positioning bayonet; 3. Seed inlet chamber; 4. Diverter chamber; 5. Diverter ring; 6. Connecting slot; 7. U-shaped receiving slot; 8. Seed metering device fixing seat; 9. Seed metering device inlet; 10. Seed metering device outlet; 11. Seed box; 12. Distribution box; 13. Switch; 14. Front furrow opener; 15. Rear furrow opener; 16. Soil covering device; 17. Seed metering round pipe; 18. Opening. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 2 , Figure 6 , Figure 7 , Figure 8 and Figure 9A crop seeder includes a frame 1, which is a prior art device. The wheels at the bottom are driven by a motor. A seed metering device 2 is installed at the bottom of the frame 1. The seed metering device 2 includes an annular housing 201, which is formed by bolts fixing two parts together. A partition ring 202 is fixedly connected inside the annular housing 201. The partition ring 202 separates the interior of the annular housing 201 and forms a seed inlet chamber 3 and a diversion chamber 4. The seed inlet chamber 3 and the diversion chamber 4 are located on both sides of the partition ring 202. A rotatable [device / structure] is provided on one side of the partition ring 202, inside the seed inlet chamber 3. A seed guide wheel 203 is fixedly connected to a seed dispensing wheel scoop 204 arranged in a ring array on one side of the seed guide wheel 203 and located inside the seed inlet cavity 3. One end of the seed dispensing wheel scoop 204 is formed with a positioning slot 205 for positioning seeds. The positioning slot 205 can position a seed when the seed dispensing wheel scoop 204 rotates to the lowest position. With the limiting of the side wall and inner wall of the annular shell 201, the seed will not fall off the positioning slot 205 during rotation. The inner side wall of the positioning slot 205 has a slope, so that when the positioning slot 205 rotates to the connecting slot 6, the bottom of its inner wall tilts downward in the direction of the connecting slot 6.

[0030] like Figure 2 , Figure 6 , Figure 7 , Figure 8 and Figure 9 Inside the annular shell 201 and inside the diversion cavity 4, there is a rotatable diversion ring 5. A connecting slot 6 is opened on the dividing ring 202. U-shaped receiving slots 7 are opened around the diversion ring 5. The number of U-shaped receiving slots 7 is the same as the number of seed dispensing wheel scoops 204, and they are set one-to-one. The U-shaped receiving slots 7 are used to hold seeds. The size of the U-shaped receiving slots 7 is designed according to the size of the seeds to be sown, so that a single U-shaped receiving slot 7 can hold one seed. The U-shaped receiving slots 7 are connected to the seed inlet cavity 3 through the connecting slot 6. When the positioning latch 205 is rotated to the connecting slot 6, the seeds are no longer restricted by the inner wall of the annular shell 201. Under the action of the rotational centrifugal force, the movement of the frame 1 and the vibration generated by the operation of the motor, the seeds inside the seed inlet cavity 3 can flow into the U-shaped receiving slots 7 through the connecting slot 6 when the positioning latch 205 is rotated to the connecting slot 6 due to the inclined surface of the bottom of its inner wall towards the connecting slot 6.

[0031] like Figure 1 , Figure 2 and Figure 3 A seed metering device mounting base 8 is fixedly installed on one side of the annular housing 201. The seed metering device mounting base 8 is fixedly installed on the bottom of the frame 1, so that the seed metering device 2 can be installed on the bottom of the frame 1 through the seed metering device mounting base 8.

[0032] like Figure 2 , Figure 6 andFigure 7 The annular shell 201 is fixedly connected to a seed metering inlet 9 and a seed metering outlet 10 on both sides respectively. The seed metering inlet 9 has an opening at the top and the seed metering outlet 10 has an opening at the bottom. The seed metering inlet 9 is connected to the seed inlet chamber 3, which can input seeds into the seed inlet chamber 3 through the seed metering inlet 9. The seed metering outlet 10 is connected to the diversion chamber 4.

[0033] like Figure 2 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The annular housing 201 has an opening 18 at its center. A motor (not shown in the figure) is installed on the outside of the annular housing 201. The rotating shaft of the motor passes through the opening 18 at the center of the annular housing 201, and the outer surface of the rotating shaft of the motor is fixedly connected to the seed guide wheel 203 and the flow divider 5 to drive the seed guide wheel 203 and the flow divider 5 to rotate. The center of the separator ring 202 also has an opening to facilitate the passage of the rotating shaft of the motor.

[0034] like Figure 1 and Figure 2 The top of the frame 1 is equipped with a seed box 11 and a power distribution box 12. Crop seeds are stored in the seed box 11. The power distribution box 12 can distribute power to all electrical equipment on the frame 1. The bottom of the seed box 11 is fixedly connected to the seed metering device 8 through a pipe, which is used to input the seeds inside the seed box 11 into the seed metering device 2. A switch 13 is installed on the frame 1. The switch 13 is electrically connected to the power distribution box 12 and can control the power-on start and power-off shutdown of electrical equipment.

[0035] The seed box 11 is divided into multiple areas by partitions. Multiple seed metering devices 2 are installed. Each area of ​​the seed box 11 is connected to a seed metering device inlet on a seed metering device 2 through a separate pipe. The pipe is controlled by a valve to release seeds into the seed metering device 2 when needed.

[0036] When sowing:

[0037] (a) Determining the sowing rate

[0038] 1. Calculation of the number of seeds per hole and plant spacing: The formula for calculating the plant spacing in hole sowing is:

[0039] ;

[0040] In the formula: —distance between acupoints ( );

[0041] —Number of holes (or slots) in the seed metering wheel;

[0042] —Diameter of the ground wheel ( );

[0043] —Transmission ratio ( );

[0044] — Slip coefficient, typically taken as 5%–9%.

[0045] 2. Calculation of sowing rate: When sowing in hills, first determine the plant spacing and the number of seeds per hill, then calculate the sowing rate.

[0046] ;

[0047] Substituting into the following formula, we can obtain the seeding rate per acre (taking corn as an example):

[0048] In the formula: —Number of seeds per hole (seeds / hole)

[0049] —distance between acupoints ( )

[0050] —line spacing ( )

[0051] The weight of a thousand seeds (a single seed) )

[0052] Volume of seed box 11: The formula for calculating the volume of seed box 11 is as follows:

[0053] ;

[0054] In the formula —Maximum seeding rate (catties / mu);

[0055] —Working width ( ( ), row spacing when using individual seed boxes;

[0056] —Required site length ( );

[0057] —Seed bulk density (kg / L)

[0058] The bottom of the frame 1 is equipped with a front furrow opener 14 and a rear furrow opener 15. A soil cover 16 is installed at the bottom of the frame 1 and on one side of the rear furrow opener 15. A seed metering pipe 17 is installed on one side of both the front furrow opener 14 and the rear furrow opener 15.

[0059] like Figure 2 , Figure 4 andFigure 5 The seed outlets 10 on different seed meterers 2 are connected to the seed metering pipes 17 on the front furrow opener 14 or the rear furrow opener 15 via corrugated pipes, so that after the furrow is opened by the front furrow opener 14 or the rear furrow opener 15, the seeds can fall into the furrow through the seed metering pipes 17.

[0060] The front trencher 14 or the rear trencher 15 is fixed to the frame 1 by bolts. The frame 1 has bolt holes at different heights, which can fix the front trencher 14 or the rear trencher 15 at different heights. When trenching is needed, the front trencher 14 or the rear trencher 15 is lowered. When trenching is not needed, the front trencher 14 and the rear trencher 15 are raised.

[0061] The front trencher 14 is for spot planting, with a trench width of about 40mm. The trencher is designed to have low resistance, light weight, simple structure, low cost, relatively flat trench bottom, stable operation, and easy automatic soil covering.

[0062] The front furrow opener 14 is a hoe-type furrow opener. When the sowing depth is 60mm and the furrow width is about 40mm, its single-row working resistance is about 44N. The rear furrow opener 15 is also a hoe-type furrow opener. The sowing depth of the rear furrow opener 15 is 60mm and the furrow width is 60mm. Users can choose the front furrow opener 14 or the rear furrow opener 15 for sowing according to actual sowing needs.

[0063] The covering device 16 is a plate-type covering device, which consists of two inclined plates pressing from both sides towards the center line of the sowing to achieve soil covering and has a compaction effect. The covering is relatively thick and the effect is good.

[0064] The working principle of the crop seeder provided by this utility model is as follows:

[0065] Taking the rear furrow opener 15 as an example, when the rear furrow opener 15 is lowered, it opens furrows on the ground when crop sowing is required. Seeds inside the seed box 11 are fed into the seed metering inlet 9 through a pipe, and then enter the seed inlet chamber 3 inside the annular shell 201. As the motor drives the seed guide wheel 203 and the diverting ring 5 to rotate, the seed guide wheel 203 drives the seed metering wheel scoop 204 to rotate. Seeds can be separated and accommodated between adjacent seed metering wheel scoops 204, and rotate with the seed metering wheel scoop 204. When the seed reaches the connecting slot 6, it can enter the U-shaped receiving slot 7 through the connecting slot 6. Each U-shaped receiving slot 7 contains one seed. As the diverting ring 5 rotates, when the U-shaped receiving slot 7 rotates to the seed metering outlet 10, the seed can be fed into the furrow opened by the rear furrow opener 15 through the seed metering outlet 10 and the pipe connected to the seed metering outlet 10. Finally, the covering soil device 16 pushes the soil dug out by the rear furrow opener 15 back into the furrow to cover the seed, thus completing the sowing of crop seeds.

[0066] Compared with related technologies, the crop seeder provided by this utility model has the following beneficial effects:

[0067] This invention installs a seed metering device 2 at the bottom of the frame 1. Utilizing the rotation of the seed guide wheel 203 and the diverting ring 5 inside the seed metering device 2, individual seeds rotate with the U-shaped receiving trough 7 to the seed metering device outlet 10, and are finally released into the opened furrow through the seed metering tube 17 for sowing. This allows for seed dispersion, enabling individual seeds to be contained within a single U-shaped receiving trough 7 and released sequentially for sowing. It also allows for control of the seed release amount, achieving single-seed sowing, reducing seed usage, and lowering seed costs.

[0068] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A crop seeder, comprising a frame (1), characterized in that, The bottom of the frame (1) is equipped with a seed metering device (2). The seed metering device (2) includes an annular housing (201). A partition ring (202) is fixedly connected inside the annular housing (201). The partition ring (202) is used to separate the inside of the annular housing (201) and form a seed inlet chamber (3) and a diversion chamber (4). A rotatable seed guide wheel (203) is provided on one side of the partition ring (202) and inside the seed inlet chamber (3). A seed metering wheel spoon (204) arranged in a ring array is fixedly connected on one side of the seed guide wheel (203) and inside the seed inlet chamber (3). A positioning slot (205) for positioning seeds is formed at one end of the seed metering wheel spoon (204). A rotatable diversion ring (5) is provided inside the annular shell (201) and inside the diversion cavity (4). A connecting slot (6) is provided on the dividing ring (202). A U-shaped receiving groove (7) is provided around the diversion ring (5). The U-shaped receiving groove (7) is used to receive seeds. The U-shaped receiving groove (7) is connected to the seed inlet cavity (3) through the connecting slot (6). The annular shell (201) is fixedly connected to the seed metering inlet (9) and the seed metering outlet (10) on both sides respectively. The seed metering inlet (9) is connected to the seed inlet chamber (3), and the seed metering outlet (10) is connected to the diversion chamber (4). The bottom of the frame (1) is equipped with a front furrow opener (14) and a rear furrow opener (15). A soil cover (16) is installed at the bottom of the frame (1) and on one side of the rear furrow opener (15). A seed metering pipe (17) is installed on one side of both the front furrow opener (14) and the rear furrow opener (15). When the positioning bayonet (205) rotates to the connecting slot (6), the inclined surface of its inner wall bottom towards the connecting slot (6) allows the seeds inside the seed inlet cavity (3) to flow into the U-shaped receiving slot (7) through the connecting slot (6).

2. The crop seeder according to claim 1, characterized in that, A seed metering device fixing seat (8) is fixedly installed on one side of the annular housing (201), and the seed metering device fixing seat (8) is fixedly installed on the bottom of the frame (1).

3. A crop seeder according to claim 2, characterized in that, The annular housing (201) has an opening (18) at its center. A motor is installed on the outside of the annular housing (201). The rotating shaft of the motor passes through the opening (18) at the center of the annular housing (201), and the outer surface of the rotating shaft of the motor is fixedly connected to the seed guide wheel (203) and the flow divider (5) to drive the seed guide wheel (203) and the flow divider (5) to rotate.

4. A crop seeder according to claim 3, characterized in that, The top of the frame (1) is equipped with a seed box (11) and a power distribution box (12). The bottom of the seed box (11) is fixedly connected to the seed metering device fixing seat (8) through a pipe, which is used to input the seeds inside the seed box into the inside of the seed metering device (2). A switch (13) is installed on the frame (1), and the switch (13) is electrically connected to the power distribution box (12).

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