Conveying and seed taking device of centrifugal seeder

Abstract

The invention relates to the technical field of agricultural machinery, and discloses a centrifugal seeder conveying and seed taking device which comprises a support and a support, a working bin is arranged on the support, a seed bin is arranged on the support, a centrifugal seed conveying bin is arranged in the working bin, and a centrifugal seed conveying piece is arranged in the centrifugal seed conveying bin. An auxiliary seed conveying device for accelerating the seed moving speed through gas conveying is communicated with the outside of the centrifugal seed conveying bin, and the centrifugal seed conveying bin discharges seeds through a plurality of communicated seed conveying pipe fittings so as to sow the seeds. When switching seeding is carried out in a small-area field and a large-area field, the adjusting plate can be adjusted according to the size of the field to close or open the seed discharging channel, so that the one-time seeding row number is changed; compared with the prior art that large-sized seeding equipment and small-sized seeding equipment can only be used for seeding fields with corresponding areas respectively, the seeding equipment has more comprehensive practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and specifically refers to a conveying and seed-taking device for a centrifugal seeder. Background Art

[0002] Centrifugal seeders mainly use centrifugal force to achieve the transportation of seeds. The seeds are placed on rotating components, and under the action of centrifugal force, the seeds are output along the tangent direction. In the prior art, the rotating components can directly sow seeds or transport the seeds to the seed metering tube and discharge them through the seed metering tube.

[0003] In many agricultural areas, family farms and small farmers are still important components of agricultural operations. Their planting areas are relatively small, and small seeders have emerged to meet the needs of these small-scale plantings and facilitate farmers to sow seeds on small plots of land.

[0004] In modern agriculture, large farms and planting enterprises play a dominant role. In order to achieve large-area and high-efficiency sowing, large seeders are essential, and large seeders are usually used in conjunction with power machinery such as large tractors.

[0005] In the prior art, both large and small seeders have limitations in the area range of the sown fields. Because the sizes of the fields in the same region vary in most areas, when farmers sow seeds, for large-area fields, large seeding equipment is required. However, large seeding equipment is costly and complex to operate, so they need to spend money to hire relevant equipment and professional personnel for sowing. For farmers who have multiple fields of different sizes at the same time, different sizes of seeding equipment are required to sow the corresponding fields, making the field sowing more cumbersome and inefficient, and unable to change the fact that the one-time row seeding equipment cannot be applied to fields of different sizes. Summary of the Invention

[0006] In order to solve the above various problems, the present invention proposes a conveying and seed-taking device for a centrifugal seeder.

[0007] In order to solve the above technical problems, the technical solution proposed by the present invention is as follows: A conveying and seed-taking device for a centrifugal seeder, including a support and a bracket. A working bin is provided on the support, and a seed bin is provided on the bracket. An internal centrifugal seed conveying bin is provided in the working bin. A centrifugal seed conveying member is provided in the centrifugal seed conveying bin, and an auxiliary seed conveying device for accelerating the seed moving speed by air transportation is externally connected. The centrifugal seed conveying bin discharges seeds through a plurality of connected seed conveying pipe fittings to achieve sowing of the seeds; The centrifugal seed feeding bin includes a bin body fixed inside the working bin and hollow inside. The centrifugal seed feeding component includes a frustum at the bottom of the bin body. There are several seed discharging channels on the inner wall of the bin body. The frustum rotates to move the seeds from the frustum up to the inner wall of the bin body and then into the seed discharging channels. There are several seed discharging plates on the frustum that can push the seeds, and a seed pushing block is provided at the end of the seed discharging plate to push the seeds into the seed discharging channels. The output end of the seed discharging channel is connected to a seed discharging pipe end that communicates with the seed conveying pipe fitting. An adjusting plate that controls the opening size of the seed discharging channel by rotation is hinged on the outer inner wall of the seed discharging channel.

[0008] As an improvement, a second cover plate is provided on the bin body, a seed discharging pipe passes through the second cover plate at the bottom of the seed bin, a connecting rod passes through the second cover plate on the adjusting plate, a first lead screw is provided on the connecting rod, a fastening nut one that fixes the adjusting plate is threadedly sleeved on the first lead screw, an adjusting reference block is provided on the second cover plate, and a rotating plate is provided at the top of the first lead screw.

[0009] As an improvement, the auxiliary seed feeding device includes a blower inside the working bin. The output end of the blower is connected to an air conveying pipe arranged around the bin body. There are several branch pipes on the air conveying pipe that are respectively inserted into several seed discharging pipe ends. The air outlet end of the branch pipe is inclined downward so that the air outlet direction is the same as the seed moving direction.

[0010] As an improvement, one end of the support is provided with a support block, a support plate is provided on the support block, four sliders are slidably arranged inside the support plate and an adjusting rod member that can adjust the distance between every two of the four sliders is provided. The bottom of the slider is provided with a first connecting plate below the support plate, a seeding mechanism is provided at the bottom of the first connecting plate, and a seed discharging pipe that communicates with the seed conveying pipe fitting passes through the slider and the first connecting plate together.

[0011] As an improvement, the seed conveying pipe fitting includes a fixed pipe with one end communicating with the seed discharging pipe end. A connecting seat is fixed at the output end of the fixed pipe. A rotatable rotating pipe is rotatably inserted into the connecting seat. A universal pipe is provided at the top of the seed discharging pipe, and a sleeve is provided on the universal pipe and sleeved outside the rotating pipe.

[0012] As an improvement, the adjusting rod member includes a first screw rod member threadedly connected to two sliders at the center. The thread directions at both ends of the first screw rod member are opposite. Two second screw rod members that are threadedly connected to the sliders at both ends are provided at both ends of the first screw rod member. The thread directions of the two second screw rod members are opposite. The thread direction of one end of the first screw rod member is the same as that of the second screw rod member on the same side direction. An adjusting end is provided at the end of the second screw rod member.

[0013] As an improvement, when the first screw rod member and the second screw rod member rotate one week, the moving distance of the sliders at both ends is twice that of the two sliders at the center.

[0014] As an improvement, the seeding mechanism includes a second connecting plate connected to the first connecting plate. An assembly groove for inserting a seed discharging pipe is provided on the second connecting plate. At one end of the bottom of the second connecting plate close to the working bin, a harrow body is provided, and a support rod is provided at the other end. A soil leveling plate is provided at the bottom of the support rod, and a fixing plate is provided at the end. Two telescopic rods are provided at the bottom of the fixing plate. A rotating shaft is provided between the bottom ends of the two telescopic rods. A compaction wheel is provided on the rotating shaft. The telescopic rod is composed of a fixing member and a telescopic member. A spring located between the fixing member and the rotating shaft is sleeved outside the telescopic member.

[0015] As an improvement, a moving plate is commonly inserted on the fixing members of the two telescopic rods. A limiting rod whose end passes through the fixing plate is provided on the moving plate. A tension spring connected between the top end of the limiting rod and the fixing plate is sleeved outside the limiting rod. A scraping plate whose end contacts the compaction wheel is provided at the end of the moving plate.

[0016] The advantages of the present invention compared with the prior art are as follows: The present invention is a conveying and seed-taking device of a centrifugal seeder, and has the following advantages: 1. By arranging adjustable adjusting plates in several seed discharging channels on the bin body, when switching seeding between small-area fields and large-area fields, the adjusting plates can be adjusted corresponding to the field size to close or open the seed discharging channels, so that the number of rows of seeds sown at one time is changed. Compared with the prior art in which large seeding equipment and small seeding equipment can only sow fields with corresponding areas respectively, it has more comprehensive practicability. By adjusting the width between the adjusting plate and the seed discharging channel to cope with the sizes of different seeds, the types of seeds applicable to sowing of the present invention are increased.

[0017] 2. By arranging several seed discharging plates on the frustum, when the frustum rotates, the seed discharging plates can prevent the seeds from sliding or rolling on the frustum, so that the seeds can quickly follow the rotation of the frustum and quickly move to the inner wall of the bin under the action of centrifugal force. And the evenly distributed seed discharging plates can make the number of seeds between two adjacent seed discharging plates quite equal, so that the number of seeds discharged by several subsequent seed discharging pipes is quite equal.

[0018] 3. A seeding mechanism is arranged. By arranging a scraping plate that can move along with the compaction wheel between the two telescopic rods, when the compaction wheel compacts the soil, soil will adhere to the compaction wheel. At this time, the scraping plate can timely clean the soil on the compaction wheel.

[0019] 4. A detachable seeding mechanism is arranged, so that when sowing large-area land and extremely small-area land, the seeding mechanism can be directly and selectively disassembled and assembled to increase or decrease the number of rows of seeds sown at one time. Cooperating with the opening and closing of the adjustable adjusting plate, it can be more suitable for lands with different areas. Description of the Drawings

[0020] Figure 1 is the overall schematic diagram of the present invention Figure 1 .

[0021] Figure 2 is the overall schematic diagram of the present invention Figure 2 .

[0022] Figure 3 is the split schematic diagram of the present invention.

[0023] Figure 4 is the partial schematic diagram of the present invention.

[0024] Figure 5 is the schematic diagram of the centrifugal seed feeding bin of the present invention.

[0025] Figure 6 is the top view schematic diagram of the centrifugal seed feeding bin of the present invention.

[0026] Figure 7 is the present invention Figure 3 partial schematic diagram A.

[0027] Figure 8 is the present invention Figure 3 partial schematic diagram B.

[0028] Figure 9 is the present invention Figure 4 partial schematic diagram C.

[0029] Figure 10 is the schematic diagram of the seeding mechanism of the present invention.

[0030] As shown in the figure: 1. Bracket; 2. Support; 3. Working bin; 4. First cover plate; 5. Fixed cylinder; 6. Seed bin; 7. Seed dropping pipe; 8. Fixed pipe; 9. Support block; 10. Support plate; 11. Connecting seat; 12. Rotating pipe; 13. Slide block; 14. Sleeve; 15. Universal pipe; 16. Seed discharging pipe; 17. First connecting plate; 18. Rotating hole; 19. Through hole; 21. Centrifugal seed feeding bin; 211. Bin body; 212. Seed discharging channel; 213. End of seed discharging pipe; 214. Adjusting plate; 215. Connecting rod; 216. First lead screw; 217. First fastening nut; 218. Rotating plate; 219. Second cover plate; 220. Adjusting reference block; 31. Centrifugal seed feeding part; 311. Frustum; 312. Seed discharging plate; 313. Seed pushing block; 314. Driving mechanism; 315. Transmission shaft; 41. Auxiliary seed feeding device; 411. Fan; 412. Air delivery pipe; 413. Branch pipe; 51. Fastening piece; 511. Fastening piece; 512. Second lead screw; 513. Second fastening nut; 514. Limiting block; 61. Adjusting rod; 611. First screw part; 612. Second screw part; 613. Adjusting end; 71. Seeding mechanism; 711. Second connecting plate; 712. Assembly groove; 713. Plough harrow body; 714. Support rod; 715. Fixed plate; 716. Expansion rod; 717. Rotating shaft; 718. Compacting wheel; 719. Spring; 720. Moving plate; 721. Limiting rod; 722. Tension spring; 723. Scraper; 724. Soil leveling plate. Detailed implementation mode

[0031] The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Combined with the attached Figure 1 and the attached Figure 2 and the attached Figure 3 and the attached Figure 4 and the attached Figure 5 and the attached Figure 6 and the attached Figure 7 as shown in: A centrifugal seeder conveying and seed-taking device includes a support 2 and a bracket 1. A working bin 3 is provided on the support 2, and a seed bin 6 is provided on the bracket 1. A centrifugal seed conveying bin 21 is provided in the working bin 3. A centrifugal seed conveying member 31 is provided in the centrifugal seed conveying bin 21. An auxiliary seed conveying device 41 for accelerating the seed moving speed through gas transmission is externally connected. The centrifugal seed conveying bin 21 discharges seeds through a plurality of connected seed conveying pipe fittings to achieve seeding of the seeds; The centrifugal seed conveying bin 21 includes a bin body 211 fixed in the working bin 3 and having a hollow interior. The centrifugal seed conveying member 31 includes a frustum 311 located at the bottom of the bin body 211. A plurality of seed discharging channels 212 are provided on the inner wall of the bin body 211. The frustum 311 rotates to move the seeds from the frustum 311 upwards to the inner wall of the bin body 211 and then into the seed discharging channels 212. A plurality of seed discharging plates 312 capable of pushing the seeds are provided on the frustum 311. A seed pushing block 313 capable of pushing the seeds into the seed discharging channels 212 is provided at the end of the seed discharging plate 312. The output end of the seed discharging channel 212 is connected to a seed discharging pipe end 213 communicated with the seed conveying pipe fittings. An adjusting plate 214 for controlling the opening size of the seed discharging channel 212 by rotation is hinged on the outer side inner wall of the seed discharging channel 212; A cover plate two 219 is provided on the bin body 211. A seed dropping pipe 7 passing through the cover plate two 219 is provided at the bottom of the seed bin 6. A connecting rod 215 passing through the cover plate two 219 is provided on the adjusting plate 214. A lead screw one 216 is provided on the connecting rod 215. A fastening nut one 217 for fixing the adjusting plate 214 is threadedly sleeved on the lead screw one 216. An adjusting reference block 220 is provided on the cover plate two 219. A rotating plate 218 is provided at the top of the lead screw one 216; A cover plate one 4 is hinged on the working bin 3, and a fixed cylinder 5 sleeved outside the centrifugal seed conveying bin 21 and connected by bolts is provided inside; The centrifugal seed conveying member 31 includes a driving mechanism 314 fixed on a support block 9. The driving mechanism 314 is composed of a machine box, a driving motor and a speed regulating gear set. A transmission shaft 315 with the top end connected to the frustum 311 is provided at the output end of the driving mechanism 314. The driving motor drives the frustum 311 to rotate through the speed regulating gear set and the transmission shaft 315.

[0033] The present invention needs to be towed and moved by a tractor or other towing equipment. During the movement, the present invention conveys seeds and sows them. The seeds are poured into the seed bin 6, and the seeds are moved to the centrifugal seed conveying bin 21 through the seed dropping pipe 7 and are centrifugally conveyed by the centrifugal seed conveying member 31. Through the centrifugal seed conveying bin 21 and the seed conveying pipe fittings, the sowing function is achieved. Working principle of the centrifugal seed conveying member 31: When sowing in the present invention, the driving mechanism 314 is started, and the round table 311 is driven to rotate clockwise from an attached Figure 6 viewpoint through the transmission shaft 315. When the round table 311 rotates, the seeds falling on the round table 311 have a relatively small rolling friction force with the round table 311, so that a relative sliding occurs between the seeds and the round table 311, and the seeds cannot quickly move towards the inner wall of the bin body 211 under the action of centrifugal force. The present invention is provided with a plurality of seed discharging plates 312. When the round table 311 rotates, the seed discharging plates 312 can push the seeds to rotate with the round table 311, and during the rotation, the seeds quickly move towards the inner wall of the bin body 211 under the action of centrifugal force, increasing the centrifugal conveying rate of the seeds. When the seeds move to the inner wall of the bin body 211, the edge of the seed pushing block 313 is in a sliding connection relationship with the inner wall of the bin body 211. At this time, the seed pushing block 313 can push the seeds to continue rotating with the round table 311. When the seeds move to the seed discharging channel 212, since the round table 311 generates centrifugal force during rotation, that is, the seeds also tend to be thrown outwards under the action of centrifugal force when rotating with the round table 311, but at this time, the seeds cannot move in the centrifugal direction due to the obstruction of the inner wall of the bin body 211. When the seeds move to the seed discharging channel 212, the seeds can immediately enter the seed discharging channel 212 under the action of centrifugal force and are discharged from the seed conveying pipe fittings through the end of the seed discharging pipe 213 under the action of inertia. During the process, the auxiliary seed conveying device 41 can increase the moving speed of the seeds. When it is necessary to change the number of rows of sowing at one time, directly rotate the adjusting plate 214 to open and close the seed discharging channel 212, and then disassemble and assemble the corresponding sowing mechanism 71 to change the number of rows of sowing at one time.

[0034] Combined with attached Figure 5 、attached Figure 6 shown: The auxiliary seed conveying device 41 includes a blower 411 located in the working bin 3. The output end of the blower 411 is connected with an air conveying pipe 412 arranged around the bin body 211. A plurality of branch pipes 413 are provided on the air conveying pipe 412 and are respectively inserted into the ends of a plurality of seed discharging pipes 213. The air outlet ends of the branch pipes 413 are inclined downward so that the air outlet direction is the same as the moving direction of the seeds.

[0035] Working principle of the auxiliary seed metering device 41: When the driving mechanism 314 is started, the fan 411 is started simultaneously. The fan 411 outputs high-speed air flow through the air delivery pipe 412 from the branch pipe 413 inserted into the end 213 of the seed metering pipe. Since the air outlet direction of the air outlet end of the branch pipe 413 is the same as the seed movement direction, the moving speed of the seeds passing through the end 213 of the seed metering pipe is greatly increased.

[0036] Combined with attached Figure 2 、attached Figure 3 、attached Figure 8 shown as follows: One end of the support 2 is provided with a support block 9. A support plate 10 is provided on the support block 9. Four sliders 13 are slidably arranged in the support plate 10, and an adjusting rod member 61 capable of adjusting the distance between two adjacent sliders 13 is provided. A first connecting plate 17 located below the support plate 10 is provided at the bottom of the slider 13. A seeding mechanism 71 is provided at the bottom of the first connecting plate 17. A seed metering pipe 16 communicating with the seed conveying pipe fitting passes through the slider 13 and the first connecting plate 17 together; The seed conveying pipe fitting includes a fixed pipe 8 with one end communicating with the end 213 of the seed metering pipe. A connecting seat 11 is fixed at the output end of the fixed pipe 8. A rotatable rotating pipe 12 is rotatably inserted into the connecting seat 11. A universal pipe 15 is provided at the top end of the seed metering pipe 16. A sleeve 14 sleeved outside the rotating pipe 12 is provided on the universal pipe 15; The adjusting rod member 61 includes a first screw member 611 threadedly connected to the two sliders 13 at the center. The thread directions at both ends of the first screw member 611 are opposite. Second screw members 612 threadedly connected to the sliders 13 at both ends are provided at both ends of the first screw member 611. The thread directions of the two second screw members 612 are opposite. The thread direction of one end of the first screw member 611 is the same as that of the second screw member 612 on the same side. An adjusting end 613 is provided at the end of the second screw member 612; When the first screw member 611 and the second screw members 612 rotate one week, the moving distance of the sliders 13 at both ends is twice that of the two sliders 13 at the center.

[0037] The seeds passing through the end 213 of the seed metering pipe pass through the fixed pipe 8, the rotating pipe 12, the sleeve 14 and the universal pipe 15 and are discharged from the seed metering pipe 16. At this time, the discharged seeds fall into the soil to complete the seeding function. When seeding, the seeding mechanism 71 performs the operations of ditching, burying and compacting; When it is necessary to change the seeding spacing between two rows of seeds: Rotate the adjusting end 613 with a tool. The adjusting end 613 drives the first screw member 611 and the second screw members 612 to rotate simultaneously. Since when the first screw member 611 and the second screw members 612 rotate one week, the moving distance of the sliders 13 at both ends is twice that of the slider 13 at the center, that is, all the sliders 13 can be evenly arranged, so that the distance between two adjacent rows of seeds is the same; The number of the sliding blocks 13 provided in the present invention is four. When the number of the sliding blocks 13 is odd, the sliding block 13 at the center is fixed in position, and when the sliding blocks 13 from the center to the end are adjusted simultaneously, the moving distances are doubled one by one. When the number of the sliding blocks 13 is even, there is no fixed sliding block 13 at this time, and when the sliding blocks 13 from the center to the end are adjusted simultaneously, the moving distances are doubled one by one. For the screw member one 611 and the screw member two 612, it is necessary to increase or decrease the corresponding number of the sliding blocks 13 and adjust the pitch. When the number of the sliding blocks 13 is odd, the center of the screw member one 611 only needs to be rotatably connected to the sliding block 13.

[0038] Combined with the attached Figure 4 、attached Figure 10 as shown: The seeding mechanism 71 includes a connecting plate two 711 connected to the connecting plate one 17. An assembly groove 712 for inserting the seed discharging pipe 16 is provided on the connecting plate two 711. A plough body 713 is provided at one end of the bottom of the connecting plate two 711 close to the working bin 3, and a support rod 714 is provided at the other end. A soil leveling plate 724 is provided at the bottom of the support rod 714, and a fixing plate 715 is provided at the end. Two telescopic rods 716 are provided at the bottom of the fixing plate 715. A rotating shaft 717 is provided between the bottom ends of the two telescopic rods 716. A compaction wheel 718 is provided on the rotating shaft 717. The telescopic rod 716 is composed of a fixing member and a telescopic member. A spring 719 located between the fixing member and the rotating shaft 717 is sleeved outside the telescopic member; A moving plate 720 is commonly inserted on the fixing members of the two telescopic rods 716. A limiting rod 721 with an end passing through the fixing plate 715 is provided on the moving plate 720. A tension spring 722 connected between the top end of the limiting rod 721 and the fixing plate 715 is sleeved outside the limiting rod 721. A scraping plate 723 with an end contacting the compaction wheel 718 is provided at the end of the moving plate 720.

[0039] During seeding: The plough body 713 on the seeding mechanism 71 can perform ditch opening work. Then, seeds are discharged from the seed discharging pipe 16. The soil leveling plate 724 immediately levels the soil in the ditch where the seeds fall, and the compaction wheel 718 compacts the buried part; In the present invention, the height of the compaction wheel 718 is smaller than that of the soil leveling plate 724. When the compaction wheel 718 contacts the soil, the compaction wheel 718 will slightly move upward under the action of the soil. At this time, the spring 719 is compressed. Since the scraping plate 723 contacts the compaction wheel 718, the moving plate 720 will move upward under the action of the compaction wheel 718. At this time, the tension spring 722 is stretched. Since the tension spring 722 is stretched and has elastic potential energy, the scraping plate 723 can scrape off the soil attached to the compaction wheel 718 under the action of the elastic force; In the present invention, the first connecting plate 17 and the second connecting plate 711 are connected by bolts. When it is necessary to reduce the number of rows of seeds sown at one time, the first connecting plate 17 can be directly disengaged from the second connecting plate 711, and then the seeding mechanism 71 can be removed. When it is necessary to increase the number of rows of seeds sown at one time, the seeding mechanism 71 can be installed at the bottom of the first connecting plate 17.

[0040] Combined with the attached Figure 9 as shown: Inside the working bin 3, there are several fasteners 51 sleeved outside the fixed pipe 8. The fastener 51 includes a fastening piece 511 located on the fixed pipe 8. One end of the fastening piece 511 is provided with a second lead screw 512 passing through the bottom plate of the working bin 3. A second fastening nut 513 is sleeved on the external thread of the second lead screw 512 and is located at the bottom of the working bin 3. There are several rotation holes 18 on the bottom plate of the working bin 3 through which the other end of the fastening piece 511 passes. A limiting block 514 is provided at the other end of the fastening piece 511, and a through hole 19 is provided on the rotation hole 18 through which the limiting block 514 can pass.

[0041] To fix the position of the seed conveying pipe fitting, the present invention provides the fastener 51. When it is necessary to disassemble the seed conveying pipe fitting, rotate the second fastening nut 513 to disengage it from the second lead screw 512 and make the second lead screw 512 disengage from the working bin 3. At this time, the seed conveying pipe fitting is in a movable state, and the disassembly work of the seed conveying pipe fitting can be carried out; When replacing the fastener 51, rotate the second fastening nut 513 and then rotate the fastening piece 511 so that the limiting block 514 rotates from the bottom of the rotation hole 18 to the bottom of the through hole 19. At this time, the limiting block 514 can pass through the through hole 19 to disengage from the working bin 3, which is convenient for replacing the fastener 51.

[0042] Specific implementation method: A conveying and seed-taking device for a centrifugal seeding machine provided by the present invention, when using the present invention to convey and sow seeds: Use a tractor or other traction equipment to tow the present invention to move. Pour the seeds into the seed bin 6. The seeds move to the centrifugal seed conveying bin 21 through the seed dropping pipe 7 and are centrifugally conveyed by the centrifugal seed conveying member 31. The seeds then enter the seed metering channel 212 and are discharged by the seed conveying pipe fitting under the action of inertia. During the process, the auxiliary seed conveying device 41 can increase the moving speed of the seeds. The centrifugal seed conveying bin 21 can adjust the width of the seed metering channel 212 when replacing seeds of different crops. And when it is necessary to change the number of rows of seeds sown at one time, directly rotate the adjusting plate 214 to block the seed metering channel 212. The seeds passing through the end of the seed metering pipe 213 are discharged from the seed metering pipe 16 through the seed conveying pipe fitting. At this time, the discharged seeds fall into the soil to complete the seeding function. When sowing, the seeding mechanism 71 performs the operations of furrowing, covering, and compacting. When it is necessary to change the sowing spacing between two rows of seeds: Use a tool to adjust the adjusting rod 61 so that the distance between two adjacent rows of seeds is the same and can be changed. In the present invention, the number of rows of seeds sown at one time can be changed by disassembling and assembling the seeding mechanism 71.

[0043] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention creation, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A centrifugal seeding machine seed conveying and taking device, comprising a support (2) and a bracket (1), wherein the support (2) is provided with a working bin (3), and the bracket (1) is provided with a seed bin (6), characterized in that: The working chamber (3) is provided with a centrifugal seed transport chamber (21), the centrifugal seed transport chamber (21) is provided with a centrifugal seed transport member (31), and is externally connected to an auxiliary seed transport device (41) for accelerating seed movement by air transport. The centrifugal seed transport chamber (21) discharges seeds through a plurality of connected seed transport pipes to achieve seed sowing; The centrifugal seed transport bin (21) comprises a bin body (211) fixed in the working bin (3) and having a hollow interior. The centrifugal seed transport member (31) comprises a round table (311) located at the bottom of the bin body (211). The inner wall of the bin body (211) is provided with a plurality of seed discharging channels (212). The round table (311) moves seeds from the round table (311) to the inner wall of the bin body (211) through rotation, and then the seeds enter the seed discharging channels (212). The round table (311) is provided with a plurality of seed discharging plates (312) capable of pushing seeds. The ends of the seed discharging plates (312) are provided with seed pushing blocks (313) capable of pushing seeds into the seed discharging channels (212). The output end of the seed discharging channel (212) is connected to a seed discharging pipe end (213) connected to a seed transport pipe member. The outer inner wall of the seed discharging channel (212) is hinged with an adjusting plate (214) capable of controlling the opening size of the seed discharging channel (212) through rotation.

2. A centrifugal seeding machine seed conveying and taking device according to claim 1, characterized in that: The bin body (211) is provided with a second cover plate (219), the bottom of the seed bin (6) is provided with a lower seed tube (7) passing through the second cover plate (219), the adjustment plate (214) is provided with a connecting rod (215) passing through the second cover plate (219), the connecting rod (215) is provided with a first screw rod (216), a fastening nut (217) for fixing the adjustment plate (214) is threadedly sleeved on the first screw rod (216), an adjustment reference block (220) is provided on the second cover plate (219), and a rotating plate (218) is provided on the top of the first screw rod (216).

3. The centrifugal seeding machine seed conveying and taking device according to claim 1, characterized in that: The auxiliary seed delivery device (41) comprises a fan (411) located in the working bin (3); the output end of the fan (411) is connected to an air delivery pipe (412) arranged around the bin body (211); the air delivery pipe (412) is provided with a plurality of branch pipes (413) respectively inserted into a plurality of seed row pipe ends (213); the air outlet ends of the branch pipes (413) are inclined downward so that the air outlet direction is the same as the seed movement direction.

4. The seed conveying and taking device of a centrifugal seeder according to claim 1, characterized in that: A support block (9) is provided at one end of the support seat (2), a support plate (10) is provided on the support block (9), four sliders (13) are slidably provided in the support plate (10), and an adjusting rod (61) capable of adjusting the spacing between the four sliders (13) is provided, a connecting plate (17) located below the support plate (10) is provided at the bottom of the slider (13), a sowing mechanism (71) is provided at the bottom of the connecting plate (17), and a seed discharging pipe (16) connected to a seed conveying pipe member passes through both the slider (13) and the connecting plate (17).

5. The seed conveying and taking device of a centrifugal seeder according to claim 4, characterized in that: The seed conveying pipe comprises a fixed pipe (8) having one end connected to a seed discharging pipe end (213); a connecting seat (11) is fixed to the output end of the fixed pipe (8); a rotating pipe (12) is rotatably inserted in the connecting seat (11); a universal pipe (15) is provided at the top end of the seed discharging pipe (16); and a sleeve (14) is provided on the universal pipe (15) and is sleeved on the outside of the rotating pipe (12).

6. The seed conveying and taking device of a centrifugal seeder according to claim 4, characterized in that: The adjusting rod (61) comprises a screw member 1 (611) threadedly connected to two sliders (13) at the center, the threads at both ends of the screw member 1 (611) are in opposite directions, and screw members 2 (612) threadedly connected to the sliders (13) at both ends are provided at both ends of the screw member 1 (611), the threads of the two screw members 2 (612) are in opposite directions, one end of the screw member 1 (611) has the same thread direction as the screw member 2 (612) on the same side, and an adjusting end head (613) is provided at the end of the screw member 2 (612).

7. The seed conveying and taking device of a centrifugal seeder according to claim 6, characterized in that: When the screw member 1 (611) and the screw member 2 (612) rotate one circle, the sliding blocks (13) at the two ends move twice the distance of the two sliding blocks (13) at the center.

8. The seed conveying and taking device of a centrifugal seeder according to claim 4, characterized in that: The sowing mechanism (71) comprises a second connecting plate (711) connected to the first connecting plate (17); the second connecting plate (711) is provided with an assembly groove (712) for plugging into the seed discharging tube (16); a plow body (713) is provided at one end of the bottom of the second connecting plate (711) close to the working bin (3); a support rod (714) is provided at the other end; a soil leveling plate (724) is provided at the bottom of the support rod (714); a fixing plate (715) is provided at the end; two telescopic rods (716) are provided at the bottom of the fixing plate (715); a rotating shaft (717) is provided between the bottom ends of the two telescopic rods (716); a compacting wheel (718) is provided on the rotating shaft (717); the telescopic rod (716) consists of a fixing part and a telescopic part; a spring (719) located between the fixing part and the rotating shaft (717) is connected to the outer cover of the telescopic part.

9. The seed conveying and taking device of a centrifugal seeder according to claim 8, characterized in that: The fixing members on the two telescopic rods (716) are commonly plugged with a movable plate (720); the movable plate (720) is provided with a limiting rod (721) whose end passes through the fixing plate (715); the limiting rod (721) is outer-mounted with a tension spring (722) connected between the top of the limiting rod (721) and the fixing plate (715); and the end of the movable plate (720) is provided with a scraper (723) whose end contacts the compacting wheel (718).

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