Pneumatic soybean seed sowing device

Abstract

The utility model relates to a seed metering device, in particular to a pneumatic seed metering device for soybean seeds. According to the technical scheme, the pneumatic soybean seed sowing device comprises a shell, a double-shaft motor, a rotating disc, an impeller and the like, the shell is provided with a front cavity and a rear cavity, the double-shaft motor is fixedly connected into the rear cavity of the shell, and the double-shaft motor is provided with a front output shaft and a rear output shaft; the rotating disc is fixedly connected to an output shaft of the front portion of the double-shaft motor and separates the two cavities of the shell, and the impeller is fixedly connected to an output shaft of the rear portion of the double-shaft motor. By starting the double-shaft motor, the impeller and the rotating disc can simultaneously rotate, so that soybean seeds are sequentially discharged, and the seed discharging device is relatively simple in internal structure, cost-saving and relatively simple and convenient to maintain.

Description

Technical Field

[0001] The utility model relates to a seed metering device, in particular to a pneumatic seed metering device for soybean seeds. Background Art

[0002] Soybean is an annual herbaceous plant of the genus Glycine in the legume family, 30-90 cm tall. The protein content of soybean is 35% - 40%. Genetically modified soybeans are round. The soybean stem is thick and erect, densely covered with brown long stiff hairs. The leaves usually have 3 leaflets; the stipules have vein patterns and are covered with yellow pubescence; the petiole is 2-20 cm long; the leaflets are broad ovate and papery; the raceme is short with few flowers or long with many flowers; the main peduncle usually has 5-8 sessile and closely crowded flowers; the bracts are lanceolate and covered with rough hairs; the bracteoles are lanceolate and covered with appressed bristles; the calyx is lanceolate, the flower is purple, light purple or white, with a petal stalk at the base, and the wing petal is comb-shaped. The pod is plump, slightly curved, pendulous, yellowish green, densely covered with brownish yellow long hairs; there are 2-5 seeds, oval or nearly spherical, the seed coat is smooth, and there are various colors such as light green, yellow, brown and black. The flowering period is from June to July, and the fruiting period is from July to September.

[0003] The patent with the patent authorization announcement number CN220986620U discloses a high-speed air-blowing seed metering device. This patent is convenient for sowing different crops by replacing the seed metering disk, and by adjusting the position of the rubber plugging wheel, the rubber plugging wheel can effectively remove the redundant seeds in the seed metering holes at the edges of different seed metering disks. By adjusting the number of cleaning rotating wheels, the cleaning rotating wheels can clean the inside of single-group or multi-group seed metering holes. The operation is convenient and easy to adjust according to needs, so that the seed metering device can meet the sowing requirements of different crops and improve its adaptability and application range. However, in the actual use process of this patent, there are still deficiencies. Since the internal structure of this patent is relatively complex and the power source needs to be provided by a mobile machine and cannot provide power independently, the maintenance is relatively troublesome.

[0004] Therefore, it is necessary to design a pneumatic seed metering device for soybean seeds to solve the above technical problems. Summary of the Utility Model

[0005] In order to overcome the disadvantages that the internal structure of the seed metering device is relatively complex, the power source needs to be provided by a mobile machine and cannot provide power independently, and the maintenance is relatively troublesome, the technical problem to be solved is: to provide a pneumatic seed metering device for soybean seeds.

[0006] The technical solution is as follows: A pneumatic seed metering device for soybean seeds, comprising a housing, a dual-axis motor, a rotating disk, an impeller, a baffle plate, and a discharge pipe. The housing has two cavities at the front and rear, and the dual-axis motor is fixedly connected inside the rear cavity of the housing. The dual-axis motor has two output shafts at the front and rear. The rotating disk is fixedly connected to the front output shaft of the dual-axis motor, and the rotating disk separates the two cavities of the housing. The rear output shaft of the dual-axis motor is fixedly connected to the impeller, and an air outlet is opened on the housing, and the impeller rotates inside the air outlet of the housing. A plurality of air inlets are annularly arrayed at the front of the housing, a plurality of the air holes are annularly arrayed on the rotating disk, the baffle plate is fixedly connected to the right part of the front cavity of the housing, and the discharge pipe penetrates into the right part of the front cavity of the housing.

[0007] Further, feeding ports are opened in both the upper and lower parts of the baffle plate.

[0008] Further, it further comprises a material pushing plate and a torsion spring. The material pushing plate is rotatably connected to the left part of the front cavity of the housing, and the torsion springs are symmetrically connected between the material pushing plate and the housing.

[0009] Further, the distance between the material pushing plate and the rear part of the front cavity of the housing is equal to the diameter of a soybean seed.

[0010] Further, it further comprises a fixing block, a clamping block, and a compression spring. The fixing block is fixedly connected to the lower part of the rear cavity of the housing, the clamping block is slidably connected inside the fixing block, the clamping block slides inside the air hole, and the compression spring is connected between the clamping block and the fixing block.

[0011] Further, the diameter of the air hole is smaller than the diameter of a soybean seed.

[0012] Further, it further comprises a storage barrel, a sealing cover, and a pull rod. The storage barrel is connected and communicated with the top of the front cavity of the housing, the sealing cover is threadedly connected to the storage barrel, and the pull rod is fixedly connected to the sealing cover.

[0013] The beneficial effects of the present utility model are as follows: 1. By starting the dual-axis motor of the present utility model, the impeller and the rotating disk can be rotated simultaneously, so that the soybean seeds are discharged in sequence. The internal structure of the seed metering device is relatively simple, the cost is saved, and the maintenance is relatively simple.

[0014] 2. Through the cooperation of the material pushing plate and the torsion spring of the present utility model, in order to prevent two soybean seeds from being discharged stacked together, the distance between the discharges of each soybean seed can be made equal, providing the germination rate.

[0015] 3. Through the cooperation of the clamping block and the compression spring, the soybean seeds in the air holes can be pulled out and fall into the front cavity of the outer shell, avoiding the phenomenon of jamming and increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present utility model.

[0017] Figure 2 It is a schematic structural diagram of components such as the double-shaft motor, the rotating disk and the impeller of the present utility model.

[0018] Figure 3 It is a schematic structural diagram of the outer shell and the feeding plate of the present utility model.

[0019] Figure 4 It is Figure 3 the enlarged schematic diagram of part A in

[0020] Figure 5 It is a schematic structural diagram of the outer shell, the rotating disk and the impeller of the present utility model.

[0021] Figure 6 It is Figure 5 the enlarged schematic diagram of part B in

[0022] Figure 7 It is a schematic structural diagram of components such as the storage barrel, the sealing cover and the pull rod of the present utility model.

[0023] Reference numerals in the drawings: 1 - outer shell, 2 - double-shaft motor, 3 - rotating disk, 4 - impeller, 5 - air hole, 6 - baffle, 7 - discharge pipe, 8 - feeding plate, 9 - torsion spring, 10 - fixing block, 11 - clamping block, 12 - compression spring, 13 - storage barrel, 14 - sealing cover, 15 - pull rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present utility model will be further described below with reference to the drawings and embodiments.

[0025] Embodiment: A pneumatic seed metering device for soybean seeds, as Figures 1 - 7As shown in the figure, it includes a housing 1, a biaxial motor 2, a rotating disk 3, an impeller 4, a partition plate 6, and a discharge pipe 7. The housing 1 is provided with two cavities in the front and rear. The biaxial motor 2 is installed in the rear cavity of the housing 1 by screws. The biaxial motor 2 is provided with two output shafts in the front and rear. The rotating disk 3 is welded to the front output shaft of the biaxial motor 2. The rotating disk 3 separates the two cavities of the housing 1. The impeller 4 is welded to the rear output shaft of the biaxial motor 2. An air outlet is opened at the rear of the housing 1. The impeller 4 rotates in the air outlet of the housing 1. A plurality of air inlets 5 are annularly arrayed on the front side of the housing 1. A plurality of the air holes 5 are annularly arrayed on the rotating disk 3. The partition plate 6 is welded to the right side of the front cavity of the housing 1. Feed ports are opened in both the upper and lower parts of the partition plate 6. The discharge pipe 7 penetrates into the lower right part of the front cavity of the housing 1.

[0026] As Figure 1 and Figure 7 shown, it further includes a storage barrel 13, a sealing cover 14, and a pull rod 15. The storage barrel 13 is connected and communicated with the top of the front cavity of the housing 1. The sealing cover 14 is threadedly connected to the top of the storage barrel 13. The pull rod 15 is installed on the top of the sealing cover 14 by screws.

[0027] When it is necessary to seed soybean seeds, the staff installs the device on a mobile vehicle frame, holds the pull rod 15 and rotates the sealing cover 14 clockwise to open the storage barrel 13, pours the soybean seeds into the storage barrel 13. After filling, then holds the pull rod 15 and rotates the sealing cover 14 counterclockwise to close the storage barrel 13. The storage barrel 13 can supply soybean seeds to the front cavity of the housing 1. Then start the biaxial motor 2. The rear output shaft of the biaxial motor 2 drives the impeller 4 to rotate at a high speed, generating an air flow, which can suck the soybean seeds in the front cavity of the housing 1 into the air holes 5 on the rotating disk 3. At the same time, the front output shaft of the biaxial motor 2 drives the rotating disk 3 to rotate clockwise. Then the soybean seeds on the rotating disk 3 move past the feed ports on the partition plate 6. When the soybean seeds contact the discharge pipe 7, they can be dialed into the pipe through the discharge pipe 7 and discharged one by one from the discharge pipe 7, thus realizing the seeding function of soybean seeds. After seeding, turn off the biaxial motor 2 to stop the seeding work.

[0028] As Figure 3 and Figure 4 shown, it further includes a dialing plate 8 and a torsion spring 9. The dialing plate 8 is rotatably connected to the upper left part of the front cavity of the housing 1. The distance between the dialing plate 8 and the rear side of the front cavity of the housing 1 is equal to the diameter of a soybean seed. Torsion springs 9 are symmetrically connected between the dialing plate 8 and the housing 1 in the front and rear.

[0029] As Figure 6As shown in the figure, it further includes a fixing block 10, a clamping block 11, and a compression spring 12. The fixing block 10 is welded to the lower part of the rear cavity of the outer shell 1, and the clamping block 11 is slidably connected in the fixing block 10. The clamping block 11 slides in the air hole 5. The diameter of the air hole 5 is smaller than the diameter of the soybean seeds. The compression spring 12 is connected between the clamping block 11 and the fixing block 10.

[0030] To prevent two soybean seeds from being discharged stacked together, when the soybean seeds on the upper part rotate to the upper left of the front cavity of the outer shell 1, the soybean seeds can contact the feeding plate 8. The feeding plate 8 can disperse the stacked soybean seeds. Then, the torsion spring 9 can increase the resistance of the feeding plate 8. Because the air flow can be too large, relatively small soybean seeds may get stuck in the air hole 5. The rotating disk 3 rotates, causing the clamping block 11 to disengage from the air hole 5 and the compression spring 12 to be compressed and deformed. When the air hole 5 is located at the position of the clamping block 11, it can move forward to its original position through the reset of the compression spring 12, and the soybean seeds in the air hole 5 can be pushed out by the clamping block 11 and fall into the front cavity of the outer shell 1.

[0031] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A soybean seed pneumatic seed metering device, characterized in that: The invention comprises a housing (1), a double-shaft motor (2), a rotating disk (3), an impeller (4), a baffle plate (6) and a discharge pipe (7), wherein the housing (1) is provided with two front and rear cavities, and the double-shaft motor (2) is fixedly connected to the rear cavity of the housing (1), the double-shaft motor (2) is provided with two front and rear output shafts, the rotating disk (3) is fixedly connected to the front output shaft of the double-shaft motor (2), and the rotating disk (3) separates the two cavities of the housing (1), and the double-shaft motor (2) is fixedly connected to the front output shaft of the double-shaft motor (2). The impeller (4) is fixedly connected to the output shaft at the rear of the shaft motor (2), and an air outlet is provided on the outer shell (1), and the impeller (4) rotates in the air outlet of the outer shell (1), a plurality of air inlet holes (5) are provided in a circular array at the front of the outer shell (1), a plurality of air holes (5) are provided in a circular array on the rotating disk (3), the baffle plate (6) is fixedly connected to the right part of the front cavity of the outer shell (1), and the discharge pipe (7) penetrates into the right part of the front cavity of the outer shell (1).

2. A soybean seed pneumatic metering device according to claim 1, characterized in that: The baffle plate (6) is provided with feed openings at the upper and lower parts.

3. A soybean seed pneumatic metering device according to claim 2, characterized in that: It also comprises a material shifting plate (8) and a torsion spring (9); the material shifting plate (8) is rotatably connected to the left part of the front cavity of the shell (1), and the torsion spring (9) is symmetrically connected between the material shifting plate (8) and the shell (1).

4. A soybean seed pneumatic metering device according to claim 3, characterized in that: The distance between the material-diverting plate (8) and the rear part of the front cavity of the shell (1) is equal to the diameter of a soybean seed.

5. A soybean seed pneumatic metering device according to claim 4, characterized in that: It also comprises a fixed block (10), a clamping block (11), and a compression spring (12); the fixed block (10) is fixedly connected to the lower part of the rear cavity of the housing (1), and the clamping block (11) is slidably connected inside the fixed block (10); the clamping block (11) slides inside the air hole (5), and the compression spring (12) is connected between the clamping block (11) and the fixed block (10).

6. A soybean seed pneumatic metering device according to claim 5, characterized in that: The diameter of the pores (5) is smaller than the diameter of soybean seeds.

7. A soybean seed pneumatic metering device according to claim 6, characterized in that: It also includes a material storage barrel (13), a sealing cover (14), and a pull rod (15); the top of the front cavity of the housing (1) is connected to and communicates with the material storage barrel (13); the sealing cover (14) is threadedly connected to the material storage barrel (13); and the pull rod (15) is fixedly connected to the sealing cover (14).

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