Adjustable seeding device for tartary buckwheat planting

Abstract

The invention discloses an adjustable seeding device for tartary buckwheat planting, the adjustable seeding device comprises a mounting rack and six seeding units, two ends of the side wall of the mounting rack are fixedly connected with two end blocks, and a spacing adjusting assembly is arranged between the two end blocks; according to the invention, the six seeding units are used for seeding simultaneously, the six seeding units are arranged on six U-shaped sliding frames of the spacing adjusting assembly, and the six U-shaped sliding frames of the spacing adjusting assembly realize equidistant spacing adjustment, so that the spacing of the six seeding units can be adjusted, and the ditching spacing can be adjusted according to soil conditions; the driving structure is used for driving a seed metering disc in the seeding unit and can change the rotating speed of a driving long shaft, so that the speed during seeding is changed, the seed spacing on a seeding path is adjustable, and the spacing of tartary buckwheat seeds during seeding can be changed according to soil conditions during seeding; the distance is matched with soil conditions, the quality of tartary buckwheat crops is guaranteed, and meanwhile the soil utilization rate is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural equipment, and specifically relates to an adjustable seeding device for tartary buckwheat planting. Background Technique

[0002] Tartary buckwheat is an annual herbaceous plant with an erect stem, broad triangular leaves, a racemose inflorescence, and dark brown fruits. Tartary buckwheat is a crop with nutritional, cultural, and ecological values, and has important medicinal and nutritional values. It is rich in rutin and other polyphenolic compounds, and has activities such as antioxidant, anti-tumor, blood pressure lowering, blood sugar lowering, and blood lipid lowering. It is an important crop with rich medicinal and nutritional values. Currently, most tartary buckwheat plantings use seeders. For example, the Chinese utility model application with the publication number CN207099594U discloses a small tartary buckwheat seeder, including a seeder. Wheels are installed on the bottom surface of the seeder, a bracket is welded between the wheels, the left side of the seeder is a cab, a rotating disk and a seat are installed inside the cab, a motor is installed inside the seeder, a driving wheel is connected to the right side of the motor, a seed guiding groove is closely attached to the upper part of the inner wall of the seeder, a seed storage box is connected above the seed guiding groove, and a seed inclined groove is connected to the rightmost side of the seed guiding groove; however, there are the following defects when using a seeder to plant tartary buckwheat currently:

[0003] Currently, when using a seeder to plant, sowing is carried out at multiple positions simultaneously. According to soil conditions, there is also a more reasonable spacing when sowing tartary buckwheat, which can improve the quality of tartary buckwheat. However, the current seeder cannot adjust the sowing spacing, resulting in the inability to adjust the spacing of seeds during sowing according to soil conditions. When the spacing is too close, it is easy to cause continuous cropping of tartary buckwheat crops, affecting the quality of tartary buckwheat. When the spacing is too far, the soil utilization rate is low.

[0004] Therefore, we propose an adjustable seeding device for tartary buckwheat planting to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an adjustable seeding device for tartary buckwheat planting to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An adjustable seeding device for tartary buckwheat planting, including an installation frame and six seeding units. Two end blocks are fixedly connected to both ends of the side wall of the installation frame. A spacing adjustment component is arranged between the two end blocks. The six seeding units are arranged on the spacing adjustment component. A locking structure is arranged at the bottom of the two end blocks. A driving structure is arranged on one side of the two end blocks close to the seeding units. An air blowing component is arranged on the top surface of the two end blocks;

[0007] The spacing adjustment component includes a strip-shaped bin fixed between two end blocks. Six U-shaped sliders are slidably sleeved on the strip-shaped bin. A seeding unit is arranged on each U-shaped slider. The six U-shaped sliders have the same spacing. Two horizontal shafts are horizontally rotatably connected to both ends inside the strip-shaped bin. A small synchronous pulley, a medium synchronous pulley and a large synchronous pulley are fixedly sleeved on the horizontal shafts. The medium synchronous pulley is located between the small synchronous pulley and the large synchronous pulley. The number of teeth of the small synchronous pulley is half of the number of teeth of the medium synchronous pulley, and the number of teeth of the small synchronous pulley is one-third of the number of teeth of the large synchronous pulley. A first synchronous belt is sleeved on the two small synchronous pulleys on the two horizontal shafts. A second synchronous belt is sleeved on the two medium synchronous pulleys on the two horizontal shafts. A third synchronous belt is sleeved on the two large synchronous pulleys on the two horizontal shafts. Two first through slots are opened at the positions directly above and directly below the first synchronous belt on the strip-shaped bin. Two second through slots are opened at the positions directly above and directly below the second synchronous belt on the strip-shaped bin. Two third through slots are opened at the positions directly above and directly below the third synchronous belt on the strip-shaped bin;

[0008] The two first through slots are horizontally slidably connected to the top and bottom of two first sliders. The two second through slots are horizontally slidably connected to the top and bottom of two second sliders. The two third through slots are horizontally slidably connected to the top and bottom of two third sliders. The two first sliders are fixedly connected to the two U-shaped sliders in the middle. The two third sliders are fixedly connected to the two U-shaped sliders at both ends. The two second sliders are fixedly connected to the remaining two U-shaped sliders. One of the first sliders is fixedly connected to the upper strand of the first synchronous belt, and the other first slider is fixedly connected to the lower strand of the first synchronous belt. One of the second sliders is fixedly connected to the upper strand of the second synchronous belt, and the other second slider is fixedly connected to the lower strand of the second synchronous belt. One of the third sliders is fixedly connected to the upper strand of the third synchronous belt, and the other third slider is fixedly connected to the lower strand of the third synchronous belt.

[0009] Preferably, a first through opening is horizontally opened on each first slider, and the first synchronous belt passes through the first through opening. The first through opening of one of the first sliders is located at the upper part of the first slider, and the first through opening of the other first slider is located at the lower part of the first slider. A second through opening is horizontally opened on each second slider, and the second synchronous belt passes through the second through opening. The second through opening of one of the second sliders is located at the upper part of the second slider, and the second through opening of the other second slider is located at the lower part of the second slider. A third through opening is horizontally opened on each third slider, and the third synchronous belt passes through the third through opening. The third through opening of one of the third sliders is located at the upper part of the third slider, and the third through opening of the other third slider is located at the lower part of the third slider. A servo reduction motor is fixedly connected to the side wall of the end of the strip-shaped bin, and the rotating shaft end of the servo reduction motor is fixedly connected to the end of one of the horizontal shafts.

[0010] Preferably, the seeding unit includes a mounting frame and a main body. The mounting frame is fixedly connected to the U-shaped sliding frame. Inside the main body, a seeding bin is fixedly connected. On the side wall of the main body, an air bin is fixedly connected. The air bin communicates with the seeding bin. An air port is fixedly connected to and communicates with the air bin. A power shaft is horizontally rotatably connected to the side wall of the main body at the middle position of the seeding bin. The end of the power shaft is located inside the seeding bin and fixedly connected to the middle of the seed discharging disc. A plurality of seed openings are evenly formed at the edge of the seed discharging disc. An arc-shaped shifter is fixedly connected to the top inside the seeding bin. A seeding shifter is fixedly connected to the bottom inside the seeding bin. A seed dropping part is fixedly connected to the bottom surface of the main body. A plow blade is fixedly connected to one end of the seed dropping part close to the mounting frame. The inside of the seed dropping part communicates with the seeding bin.

[0011] Preferably, a first support rod and a second support rod are arranged between the mounting frame and the main body. The first support rod is located above the second support rod. The first support rod is parallel to the second support rod. One end of the first support rod is fixedly connected to a first shaft column. The other end of the first support rod is fixedly connected to a second shaft column. The first shaft column is rotatably sleeved on the mounting frame. The second shaft column is rotatably sleeved on the main body. One end of the second support rod is fixedly connected to a third shaft column. The other end of the second support rod is fixedly connected to a fourth shaft column. The third shaft column is rotatably sleeved on the mounting frame. The fourth shaft column is rotatably sleeved on the main body. Three ear blocks are evenly fixedly connected to the side wall of the end of the first shaft column. A threaded tube is fixedly sleeved on the ear block. The threaded tube is threadedly sleeved with a positioning bolt. A plurality of threaded holes are evenly formed in the side wall of the mounting frame around the first shaft column. The end of the threaded tube is threadedly connected to any one of the threaded holes.

[0012] Preferably, a driving shaft column is rotatably sleeved on the third shaft column. A driven shaft column is rotatably sleeved on the fourth shaft column. A second driving sprocket is fixedly sleeved on one end of the driven shaft column close to the power shaft. A first driven sprocket is fixedly sleeved on the other end of the driven shaft column. A first driving sprocket is fixedly sleeved on one end of the driving shaft column close to the first driven sprocket. A second driven sprocket is fixedly sleeved on the end of the power shaft. A first transmission chain is sleeved on the first driving sprocket and the first driven sprocket. A second transmission chain is sleeved on the second driving sprocket and the second driven sprocket. A hexagonal through hole is horizontally formed in the driving shaft column.

[0013] Preferably, the driving structure includes two side blocks. The two side blocks are fixedly connected to the side walls of two end blocks. Two end shaft columns are rotatably sleeved on the two side blocks. A driving long shaft is fixedly connected between the two end shaft columns. The cross-sectional shape of the driving long shaft is hexagonal. The driving long shaft is slidably inserted into the hexagonal through hole. A gearbox is fixedly connected to the side wall of one of the side blocks.

[0014] Preferably, the input shaft and the output shaft are horizontally rotatably connected in the gearbox. The end of the output shaft passes through the side wall of the gearbox and is fixedly connected to the end of one of the end shaft columns. The input shaft is sequentially and equidistantly fixedly sleeved with a driving pinion gear, a driving middle gear, and a driving large gear. The output shaft is fixedly sleeved with a spline shaft. A ball spline is slidably sleeved on the spline shaft. The ball spline is sequentially and equidistantly fixedly sleeved with a driven large gear, a driven middle gear, and a driven pinion gear. The distance between the driving pinion gear, the driving middle gear, and the driving large gear is greater than the distance between the driven large gear, the driven middle gear, and the driven pinion gear. The end of a U-shaped frame is rotatably sleeved on the ball spline. A force-bearing rod is fixedly connected to the bottom of the U-shaped frame. A notch is formed in the bottom surface of the gearbox corresponding to the position of the force-bearing rod. The force-bearing rod is horizontally slidably connected to the notch. The bottom end of the force-bearing rod is located outside the gearbox. A second cylinder is fixedly connected to the bottom surface of the gearbox. The output end of the second cylinder is fixedly connected to the side wall of the bottom end of the force-bearing rod. A driving reduction motor is fixedly connected to the side wall of the gearbox. The rotating shaft end of the driving reduction motor is fixedly connected to the end of the input shaft.

[0015] Preferably, the locking structure includes a bottom strip plate. The bottom strip plate is fixedly connected to the bottom surfaces of the two end blocks. A side opening is formed in the bottom strip plate close to the seeding unit. A sliding rod is horizontally fixedly connected to the end of the side opening. Six sliding sleeves are horizontally slidably sleeved on the sliding rod. The mounting frame of the seeding unit is fixedly connected to the side wall of the sliding sleeve. A fixed strip plate is horizontally fixedly connected in the side opening. A pressing plate is horizontally slidably arranged at a position between the fixed strip plate and the sliding rod in the side opening. A first cylinder is fixedly sleeved in the middle of the fixed strip plate. The output end of the first cylinder is fixedly connected to the center of the side wall of the pressing plate. A plurality of guide rods are horizontally fixedly connected to one side of the pressing plate close to the fixed strip plate. A plurality of guide holes are horizontally formed in the fixed strip plate corresponding to the plurality of guide rods. The guide rods are slidably sleeved in the guide holes. The pressing plate contacts the side walls of the six sliding sleeves.

[0016] Preferably, the air blowing assembly includes an air storage bin and a blower. Two seat bodies are fixedly connected to the top surfaces of the two end blocks. The two ends of the air storage bin are fixedly connected to the two seat bodies. The blower is fixedly connected to the side wall of the mounting frame. One end of a main air pipe is fixedly connected to and communicated with the blower. The other end of the main air pipe is fixedly connected to and communicated with the air storage bin. Six flexible air pipes are fixedly connected to and communicated with the air storage bin. The end of the flexible air pipe is fixedly connected to and communicated with an air port.

[0017] Preferably, a seed bin is fixedly connected to the top surface of the main body portion. The seed bin communicates with the inside of the sowing bin. A bin cover is rotatably connected to the top surface of the seed bin. Two short shafts are horizontally fixedly connected to both sides of the main body portion near the mounting frame. A soil covering strip plate is rotatably sleeved on each short shaft. A short block is fixedly connected to the side wall of the main body portion near the mounting frame. Two tension springs are fixedly connected to the bottom surface of the short block. The bottom ends of the tension springs are fixedly connected to the top ends of the soil covering strip plates. The bottom ends of the soil covering strip plates are bent toward the side of the mounting frame. An inclined rod is fixedly connected to the side of the main body portion away from the mounting frame. A sleeve rod is slidably sleeved on the inclined rod. A wheel frame is fixedly connected to the side wall of the sleeve rod. A soil covering pressure wheel is rotatably connected to the wheel frame. A threaded through hole is formed in the side wall of the sleeve rod. The threaded through hole is threadedly connected with a locking bolt. The end of the locking bolt contacts the side wall of the inclined rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The present invention uses six sowing units to sow simultaneously. The six sowing units are arranged on six U-shaped sliding frames of the spacing adjustment assembly. The six U-shaped sliding frames of the spacing adjustment assembly can adjust the spacing at equal intervals. In this way, the spacing between the six sowing units can be adjusted and kept consistent all the time. According to the soil conditions, the spacing of the furrows can be adjusted, so that the lateral spacing during sowing can be adjusted. The driving structure is used to drive the seed discharging disc in the sowing unit. At the same time, when the gears in the gearbox of the driving structure are in different meshing states, the rotation speed of the driving long shaft can be changed. In this way, the sowing speed is changed during sowing, so that the spacing between the seeds on the sowing path can be adjusted. In this way, the spacing of tartary buckwheat seeds during sowing can be changed according to the soil conditions, so that the spacing matches the soil conditions, ensuring the quality of tartary buckwheat crops and the soil utilization rate at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Structural schematic diagram of the main body in the first and second embodiments of the present invention;

[0021] Figure 2 Structural schematic diagram of the spacing adjustment assembly in the first and second embodiments of the present invention;

[0022] Figure 3 Cross-sectional structural schematic diagram of the spacing adjustment assembly in the first and second embodiments of the present invention;

[0023] Figure 4 Structural schematic diagram of the driving structure in the first and second embodiments of the present invention;

[0024] Figure 5 Horizontal cross-sectional structural schematic diagram of the gearbox in the second embodiment of the present invention;

[0025] Figure 6 Vertical cross-sectional structural schematic diagram of the gearbox in the second embodiment of the present invention;

[0026] Figure 7 Schematic structural diagram of the seeding unit in the second embodiment of the present invention;

[0027] Figure 8 Of the present invention Figure 7 Schematic enlarged structural diagram of the structure at position A;

[0028] Figure 9 Schematic structural diagram of the other side of the seeding unit in the second embodiment of the present invention;

[0029] Figure 10 Schematic explosion structure diagram of the seeding unit in the second embodiment of the present invention;

[0030] Figure 11 Schematic structural diagram of the seeding bin in the seeding unit in the second embodiment of the present invention;

[0031] Figure 12 Schematic structural diagram of the locking structure in the second embodiment of the present invention.

[0032] In the figure: 1, mounting frame; 2, spacing adjustment component; 3, seeding unit; 4, locking structure; 5, driving structure; 6, air blowing component; 11, end block; 12, seat body; 21, strip bin; 22, cross shaft; 23, small synchronous pulley; 24, medium synchronous pulley; 25, large synchronous pulley; 26, first synchronous belt; 27, second synchronous belt; 28, third synchronous belt; 29, first through slot; 210, second through slot; 211, third through slot; 212, first slider; 213, second slider; 214, third slider; 215, U-shaped sliding frame; 216, first through port; 217, second through port; 218, third through port; 219, servo reduction motor; 31, mounting frame; 32, main body part; 33, seed dropping part; 34, plow blade; 35, seeding bin; 36, air chamber; 37, air port; 38, power shaft; 39, seed metering disc; 310, arc-shaped dial; 311, seeding dial; 312, wheel frame; 313, soil covering press wheel; 314, short shaft; 315, soil covering strip board; 316, short block; 317, tension spring; 318, first shaft column; 319, first support rod; 320, second shaft column; 321, third shaft column; 322, second support rod; 323, fourth shaft column; 324, driving shaft column; 325, hexagonal through port; 326, driven shaft column; 327, first driving sprocket; 328, first driven sprocket; 329, first transmission chain; 330, second driving sprocket; 331, second driven sprocket; 332, second transmission chain; 333, seed bin; 334, ear block; 335, threaded pipe; 336, positioning bolt; 337, threaded hole; 338, inclined rod; 339, sleeve rod; 340, threaded through hole; 341, locking bolt; 342, bin cover; 343, seed port; 41, bottom strip board; 42, side port; 43, slide bar; 44, sliding sleeve; 45, fixed strip board; 46, pressing plate; 47, guide hole; 48, guide rod; 49, first cylinder; 51, side block; 52, end shaft column; 53, driving long shaft; 54, gearbox; 55, driving reduction motor; 56, input shaft; 57, output shaft; 58, driving small gear; 59, driving medium gear; 510, driving large gear; 511, spline shaft; 512, ball spline; 513, driven small gear; 514, driven medium gear; 515, driven large gear; 516, U-shaped frame; 517, stress rod; 518, notch; 519, second cylinder; 61, air storage bin; 62, fan; 63, main air pipe; 64, flexible air pipe. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Embodiment 1:

[0035] Please refer to Figures 1-4 , the present invention provides a technical solution: an adjustable seeding device for tartary buckwheat planting, including an installation frame 1 and six seeding units 3. Two end blocks 11 are fixedly connected to both ends of the side wall of the installation frame 1. A spacing adjustment assembly 2 is arranged between the two end blocks 11. The six seeding units 3 are arranged on the spacing adjustment assembly 2. A locking structure 4 is arranged at the bottom of the two end blocks 11. A driving structure 5 is arranged on one side of the two end blocks 11 close to the seeding units 3. An air blowing assembly 6 is arranged on the top surface of the two end blocks 11;

[0036] The spacing adjustment assembly 2 includes a strip-shaped bin 21 fixedly connected between the two end blocks 11. Six U-shaped sliding frames 215 are slidably sleeved on the strip-shaped bin 21. Each U-shaped sliding frame 215 is provided with a seeding unit 3. The six U-shaped sliding frames 215 have the same spacing. Two horizontal shafts 22 are horizontally rotatably connected to both ends inside the strip-shaped bin 21. Small synchronous belt pulleys 23, medium synchronous belt pulleys 24 and large synchronous belt pulleys 25 are fixedly sleeved on the horizontal shafts 22. The medium synchronous belt pulley 24 is located between the small synchronous belt pulley 23 and the large synchronous belt pulley 25. The number of teeth of the small synchronous belt pulley 23 is half of the number of teeth of the medium synchronous belt pulley 24. The number of teeth of the small synchronous belt pulley 23 is one-third of the number of teeth of the large synchronous belt pulley 25. A first synchronous belt 26 is sleeved on the two small synchronous belt pulleys 23 on the two horizontal shafts 22. A second synchronous belt 27 is sleeved on the two medium synchronous belt pulleys 24 on the two horizontal shafts 22. A third synchronous belt 28 is sleeved on the two large synchronous belt pulleys 25 on the two horizontal shafts 22. Two first through grooves 29 are opened at the positions directly above and directly below the first synchronous belt 26 on the strip-shaped bin 21. Two second through grooves 210 are opened at the positions directly above and directly below the second synchronous belt 27 on the strip-shaped bin 21. Two third through grooves 211 are opened at the positions directly above and directly below the third synchronous belt 28 on the strip-shaped bin 21;

[0037] Two first through slots 29 are horizontally and slidably connected to the top and bottom ends of two first sliders 212. Two second through slots 210 are horizontally and slidably connected to the top and bottom ends of two second sliders 213. Two third through slots 211 are horizontally and slidably connected to the top and bottom ends of two third sliders 214. Two first sliders 212 are fixedly connected to two U-shaped sliding frames 215 located in the middle. Two third sliders 214 are fixedly connected to two U-shaped sliding frames 215 located at both ends. Two second sliders 213 are fixedly connected to the remaining two U-shaped sliding frames 215. One of the first sliders 212 is fixedly connected to the upper strand of the first synchronous belt 26, and the other first slider 212 is fixedly connected to the lower strand of the first synchronous belt 26. One of the second sliders 213 is fixedly connected to the upper strand of the second synchronous belt 27, and the other second slider 213 is fixedly connected to the lower strand of the second synchronous belt 27. One of the third sliders 214 is fixedly connected to the upper strand of the third synchronous belt 28, and the other third slider 214 is fixedly connected to the lower strand of the third synchronous belt 28. Six seeding units 3 are used for seeding simultaneously. The six seeding units 3 are arranged on six U-shaped sliding frames 215 of the spacing adjustment assembly 2. The six U-shaped sliding frames 215 of the spacing adjustment assembly 2 achieve equidistant spacing adjustment, so that the spacing between the six seeding units 3 can be adjusted and the spacing between the six seeding units 3 can be kept consistent all the time. The spacing of the furrows can be adjusted according to the soil conditions, so that the lateral spacing during seeding is adjustable. The driving structure 5 is used to drive the seed discharging disc 39 in the seeding unit 3. At the same time, when the gears in the gearbox 54 of the driving structure 5 are in different meshing states, the rotation speed of the driving long shaft 53 can be changed, so that the speed during seeding is changed, and the spacing between the seeds on the seeding path is adjustable. In this way, the spacing of the tartary buckwheat seeds during seeding can be changed according to the soil conditions, so that the spacing is adapted to the soil conditions, the quality of the tartary buckwheat crop is guaranteed, and the soil utilization rate is guaranteed at the same time.

[0038] Embodiment 2:

[0039] Please refer to Figures 1-12, which is the second embodiment of the present invention. This embodiment is based on the previous embodiment. A first through opening 216 is horizontally formed on each first slider 212. The first synchronous belt 26 passes through the first through opening 216. The first through opening 216 of one of the first sliders 212 is located at the upper position of the first slider 212, and the first through opening 216 of the other first slider 212 is located at the lower position of the first slider 212. A second through opening 217 is horizontally formed on each second slider 213. The second synchronous belt 27 passes through the second through opening 217. The second through opening 217 of one of the second sliders 213 is located at the upper position of the second slider 213, and the second through opening 217 of the other second slider 213 is located at the lower position of the second slider 213. A third through opening 218 is horizontally formed on each third slider 214. The third synchronous belt 28 passes through the third through opening 218. The third through opening 218 of one of the third sliders 214 is located at the upper position of the third slider 214, and the third through opening 218 of the other third slider 214 is located at the lower position of the third slider 214. A servo reduction motor 219 is fixedly connected to the end side wall of the strip-shaped bin 21. The end of the rotating shaft of the servo reduction motor 219 is fixedly connected to the end of one of the horizontal shafts 22. The sliders at different positions are driven to move by using three synchronous belts, so as to realize the spacing adjustment of the six U-shaped sliding frames 215.

[0040] The seeding unit 3 includes a mounting frame 31 and a main body portion 32. The mounting frame 31 is fixedly connected to the U-shaped sliding frame 215. A seeding bin 35 is fixedly connected inside the main body portion 32. An air bin 36 is fixedly connected to the side wall of the main body portion 32. The air bin 36 is communicated with the seeding bin 35. An air port 37 is fixedly connected and communicated with the air bin 36. A power shaft 38 is horizontally rotatably connected to the side wall of the main body portion 32 at the middle position of the seeding bin 35. The end of the power shaft 38 is located inside the seeding bin 35 and fixedly connected to the middle of the seed discharging disc 39. A plurality of seed openings 343 are uniformly formed at the edge of the seed discharging disc 39. An arc-shaped baffle 310 is fixedly connected to the top inside the seeding bin 35. A seeding baffle 311 is fixedly connected to the bottom inside the seeding bin 35. A seed dropping portion 33 is fixedly connected to the bottom surface of the main body portion 32. A plow blade 34 is fixedly connected to one end of the seed dropping portion 33 close to the mounting frame 1. The inside of the seed dropping portion 33 is communicated with the seeding bin 35. The seeds in the seed bin 333 fall into the seeding bin 35. The air blowing assembly 6 supplies air to the air bin 36. In this way, the seeds will be close to the seed discharging disc 39 under the air pressure. In this way, some seeds enter the position of the seed openings 343. When the seed discharging disc 39 rotates, it first passes through the position of the arc-shaped baffle 310, which will knock off the seeds on the surface of the seed discharging disc 39 to ensure that there is only one seed in each seed opening 343. Then it passes through the position of the seeding baffle 311, and the seeds in the seed openings 343 are knocked off to the seed dropping portion 33 to fall for seeding.

[0041] A first support rod 319 and a second support rod 322 are arranged between the mounting frame 31 and the main body 32. The first support rod 319 is located above the second support rod 322. The first support rod 319 is parallel to the second support rod 322. One end of the first support rod 319 is fixedly connected to the first shaft column 318, and the other end of the first support rod 319 is fixedly connected to the second shaft column 320. The first shaft column 318 is rotatably sleeved on the mounting frame 31, and the second shaft column 320 is rotatably sleeved on the main body 32. One end of the second support rod 322 is fixedly connected to the third shaft column 321, and the other end of the second support rod 322 is fixedly connected to the fourth shaft column 323. The third shaft column 321 is rotatably sleeved on the mounting frame 31, and the fourth shaft column 323 is rotatably sleeved on the main body 32. Three ear blocks 334 are evenly fixedly connected to the side wall of the end of the first shaft column 318. A threaded pipe 335 is fixedly sleeved on the ear block 334. A positioning bolt 336 is threadedly sleeved on the threaded pipe 335. A plurality of threaded holes 337 are evenly opened on the side wall of the mounting frame 31 around the first shaft column 318. The end of the threaded pipe 335 is threadedly connected to any one of the threaded holes 337. The mounting frame 31, the main body 32, the first support rod 319, and the second support rod 322 form a parallelogram, and the height of the main body 32 can be adjusted. After the adjustment is completed, the positioning bolt 336 is installed and fixed.

[0042] A driving shaft column 324 is rotatably sleeved on the third shaft column 321, and a driven shaft column 326 is rotatably sleeved on the fourth shaft column 323. A second driving sprocket 330 is fixedly sleeved on one end of the driven shaft column 326 close to the power shaft 38, and a first driven sprocket 328 is fixedly sleeved on the other end of the driven shaft column 326. A first driving sprocket 327 is fixedly sleeved on one end of the driving shaft column 324 close to the first driven sprocket 328. A second driven sprocket 331 is fixedly sleeved on the end of the power shaft 38. A first transmission chain 329 is sleeved on the first driving sprocket 327 and the first driven sprocket 328, and a second transmission chain 332 is sleeved on the second driving sprocket 330 and the second driven sprocket 331. A hexagonal through opening 325 is horizontally opened on the driving shaft column 324.

[0043] The driving structure 5 includes two side blocks 51. The two side blocks 51 are fixedly connected to the side walls of the two end blocks 11. Two end shaft columns 52 are rotatably sleeved on the two side blocks 51. A driving long shaft 53 is fixedly connected between the two end shaft columns 52. The cross-sectional shape of the driving long shaft 53 is hexagonal. The driving long shaft 53 is slidably inserted into the hexagonal through opening 325. A gearbox 54 is fixedly connected to the side wall of one of the side blocks 51.

[0044] The input shaft 56 and the output shaft 57 are horizontally rotatably connected within the transmission 54. The end of the output shaft 57 passes through the side wall of the transmission 54 and is fixedly connected to the end of one of the end shafts 52. The driving small gear 58, the driving medium gear 59, and the driving large gear 510 are sequentially and equidistantly fixedly sleeved on the input shaft 56. The spline shaft 511 is fixedly sleeved on the output shaft 57. The ball spline 512 is slidably sleeved on the spline shaft 511. The driven large gear 515, the driven medium gear 514, and the driven small gear 513 are sequentially and equidistantly fixedly sleeved on the ball spline 512. The spacing between the driving small gear 58, the driving medium gear 59, and the driving large gear 510 is greater than the spacing between the driven large gear 515, the driven medium gear 514, and the driven small gear 513. The end of the U-shaped frame 516 is rotatably sleeved on the ball spline 512. The force-receiving rod 517 is fixedly connected to the bottom of the U-shaped frame 516. A notch 518 is opened on the bottom surface of the transmission 54 corresponding to the position of the force-receiving rod 517. The force-receiving rod 517 is horizontally slidably connected to the notch 518. The bottom end of the force-receiving rod 517 is located outside the transmission 54. The second cylinder 519 is fixedly connected to the bottom surface of the transmission 54. The output end of the second cylinder 519 is fixedly connected to the side wall of the bottom end of the force-receiving rod 517. The driving reduction motor 55 is fixedly connected to the side wall of the transmission 54. The rotating shaft end of the driving reduction motor 55 is fixedly connected to the end of the input shaft 56. The position of the ball spline 512 can be adjusted by the second cylinder 519, so as to change the meshing mode, change the rotation speed of the output shaft 57, and further change the sowing speed of the sowing unit 3.

[0045] The locking structure 4 includes a bottom strip 41, and the bottom strip 41 is fixedly connected to the bottom surfaces of the two end blocks 11. A side opening 42 is opened on the side of the bottom strip 41 close to the sowing unit 3. A slide bar 43 is horizontally fixedly connected to the end of the side opening 42. Six sliding sleeves 44 are horizontally slidably sleeved on the slide bar 43. The mounting frame 31 of the sowing unit 3 is fixedly connected to the side wall of the sliding sleeve 44. A fixed strip 45 is horizontally fixedly connected in the side opening 42. A pressing plate 46 is horizontally slidably arranged at the position between the fixed strip 45 and the slide bar 43 in the side opening 42. The first cylinder 49 is fixedly sleeved in the middle of the fixed strip 45. The output end of the first cylinder 49 is fixedly connected to the center of the side wall of the pressing plate 46. A plurality of guide rods 48 are horizontally fixedly connected to the side of the pressing plate 46 close to the fixed strip 45. A plurality of guide holes 47 are horizontally opened on the fixed strip 45 corresponding to the positions of the plurality of guide rods 48. The guide rods 48 are slidably sleeved in the guide holes 47. The pressing plate 46 contacts the side walls of the six sliding sleeves 44. After adjusting the spacing of the six sowing units 3, the pressing plate 46 is pressed against the sliding sleeves 44 by the first cylinder 49 to assist in fixing the position of the sowing unit 3.

[0046] The air blowing assembly 6 includes an air storage chamber 61 and a blower 62. Two seat bodies 12 are fixedly connected to the top surfaces of the two end blocks 11. The two ends of the air storage chamber 61 are fixedly connected to the two seat bodies 12. The blower 62 is fixedly connected to the side wall of the mounting frame 1. One end of the main air pipe 63 is fixedly connected and communicated with the blower 62. The other end of the main air pipe 63 is fixedly connected and communicated with the air storage chamber 61. Six flexible air pipes 64 are fixedly connected and communicated with the air storage chamber 61. The end of the flexible air pipe 64 is fixedly connected and communicated with the air port 37 for supplying air to the air chamber 36.

[0047] The top surface of the main body part 32 is fixedly connected to the seed bin 333. The seed bin 333 communicates with the inside of the sowing bin 35. The top surface of the seed bin 333 is rotatably connected to the bin cover 342. On both sides of the main body part 32 near the mounting frame 31, two short shafts 314 are horizontally fixedly connected. A soil covering strip plate 315 is rotatably sleeved on each short shaft 314. A short block 316 is fixedly connected to the side wall of the main body part 32 near the mounting frame 31. Two tension springs 317 are fixedly connected to the bottom surface of the short block 316. The bottom ends of the tension springs 317 are fixedly connected to the top ends of the soil covering strip plate 315. The bottom end of the soil covering strip plate 315 is bent toward the side of the mounting frame 31. An inclined rod 338 is fixedly connected to the side of the main body part 32 away from the mounting frame 31. A sleeve rod 339 is slidably sleeved on the inclined rod 338. A wheel frame 312 is fixedly connected to the side wall of the sleeve rod 339. A soil covering press wheel 313 is rotatably connected to the wheel frame 312. A threaded through hole 340 is formed in the side wall of the sleeve rod 339. A locking bolt 341 is threadedly connected to the threaded through hole 340. The end of the locking bolt 341 contacts the side wall of the inclined rod 338, which can change the height position of the sleeve rod 339, and thus change the height of the soil covering press wheel 313. Then, tighten the locking bolt 341 to fix it.

[0048] Embodiment 3:

[0049] Please refer to Figures 1-12, which is the third embodiment of the present invention. Based on the above two embodiments, when the present invention is in use, it should be fixed to agricultural power machinery and equipment. When sowing, according to the soil conditions, the spacing of the six sowing units 3 is adjusted through the spacing adjustment assembly 2, and at the same time, the driving structure 5 adjusts the rotation speed of the driving long shaft 53. Then, in the locking structure 4, the first cylinder 49 drives the pressing plate 46 to move and press the sliding sleeve 44 to assist in fixing the position of the sowing unit 3. When sowing, tartary buckwheat seeds are loaded into the seed bin 333, and the agricultural power machinery and equipment drives it to move on the soil. The plow blade 34 will open a groove in the soil, and the seeds in the seed bin 333 will fall into the sowing bin 35. The air blowing assembly 6 supplies air to the air chamber 36, so that the seeds will be close to the seed metering disc 39 under the air pressure. In this way, part of the seeds enter the position of the seed opening 343. When the seed metering disc 39 rotates, it first passes through the position of the arc-shaped deflector 310, which will deflect the seeds on the surface of the seed metering disc 39 to ensure that there is only one seed in each seed opening 343. Then it passes through the position of the sowing deflector 311, and the seeds in the seed opening 343 are deflected to the seed dropping part 33 and fall into the opened groove. The two rear soil covering strips 315 will push the soil on both sides inward for landfill, and then it is rolled by the soil covering press wheel 313 to complete sowing. The present invention adopts six sowing units 3 for sowing at the same time. The six sowing units 3 are arranged on the six U-shaped sliding frames 215 of the spacing adjustment assembly 2. The six U-shaped sliding frames 215 of the spacing adjustment assembly 2 realize equidistant spacing adjustment, so that the spacing of the six sowing units 3 can be adjusted and the spacing of the six sowing units 3 can be kept consistent all the time. According to the soil conditions, the spacing of the furrows can be adjusted, so that the lateral spacing during sowing can be adjusted. The driving structure 5 is used to drive the seed metering disc 39 in the sowing unit 3. At the same time, when the gears in the gearbox 54 of the driving structure 5 are in different meshing states, the rotation speed of the driving long shaft 53 can be changed. In this way, the sowing speed is changed, and the seed spacing on the sowing path can be adjusted. In this way, the spacing of tartary buckwheat seeds during sowing can be changed according to the soil conditions, so that the spacing is adapted to the soil conditions, ensuring the quality of tartary buckwheat crops and at the same time ensuring the soil utilization rate.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable seeding device for tartary buckwheat planting, comprising an installation frame (1) and six seeding units (3), characterized in that: Two end blocks (11) are fixedly connected to both ends of the side wall of the installation frame (1). A spacing adjustment assembly (2) is arranged between the two end blocks (11). The six seeding units (3) are arranged on the spacing adjustment assembly (2). A locking structure (4) is arranged at the bottom of the two end blocks (11). A driving structure (5) is arranged on one side of the two end blocks (11) close to the seeding units (3). An air blowing assembly (6) is arranged on the top surface of the two end blocks (11); The spacing adjustment assembly (2) includes a strip-shaped bin (21) fixedly connected between the two end blocks (11). Six U-shaped sliding frames (215) are slidably sleeved on the strip-shaped bin (21). Each U-shaped sliding frame (215) is provided with a seeding unit (3). The six U-shaped sliding frames (215) have the same spacing. Two horizontal shafts (22) are horizontally rotatably connected to both ends inside the strip-shaped bin (21). A small synchronous pulley (23), a medium synchronous pulley (24) and a large synchronous pulley (25) are fixedly sleeved on the horizontal shaft (22). The medium synchronous pulley (24) is located between the small synchronous pulley (23) and the large synchronous pulley (25). The number of teeth of the small synchronous pulley (23) is half of the number of teeth of the medium synchronous pulley (24). The number of teeth of the small synchronous pulley (23) is one-third of the number of teeth of the large synchronous pulley (25). A first synchronous belt (26) is sleeved on the two small synchronous pulleys (23) on the two horizontal shafts (22). A second synchronous belt (27) is sleeved on the two medium synchronous pulleys (24) on the two horizontal shafts (22). A third synchronous belt (28) is sleeved on the two large synchronous pulleys (25) on the two horizontal shafts (22). Two first through grooves (29) are opened at the positions directly above and directly below the first synchronous belt (26) on the strip-shaped bin (21). Two second through grooves (210) are opened at the positions directly above and directly below the second synchronous belt (27) on the strip-shaped bin (21). Two third through grooves (211) are opened at the positions directly above and directly below the third synchronous belt (28) on the strip-shaped bin (21); The two first through slots (29) are horizontally and slidably connected to the top and bottom of the two first sliders (212), the two second through slots (210) are horizontally and slidably connected to the top and bottom of the two second sliders (213), the two third through slots (211) are horizontally and slidably connected to the top and bottom of the two third sliders (214), the two first sliders (212) are fixedly connected to two U-shaped sliding frames (215) located in the middle, the two third sliders (214) are fixedly connected to two U-shaped sliding frames (215) located at both ends, the two second sliders (213) are fixedly connected to the remaining two U-shaped sliding frames (215), one of the first sliders (212) is fixedly connected to the upper strand of the first synchronous belt (26), the other first slider (212) is fixedly connected to the lower strand of the first synchronous belt (26), one of the second sliders (213) is fixedly connected to the upper strand of the second synchronous belt (27), the other second slider (213) is fixedly connected to the lower strand of the second synchronous belt (27), one of the third sliders (214) is fixedly connected to the upper strand of the third synchronous belt (28), and the other third slider (214) is fixedly connected to the lower strand of the third synchronous belt (28).

2. The adjustable seeding device for tartary buckwheat planting according to claim 1, characterized in that: A first through opening (216) is horizontally formed on each of the first sliders (212), the first synchronous belt (26) passes through the first through opening (216), the first through opening (216) of one of the first sliders (212) is located at the upper position of the first slider (212), the first through opening (216) of the other first slider (212) is located at the lower position of the first slider (212), a second through opening (217) is horizontally formed on each of the second sliders (213), the second synchronous belt (27) passes through the second through opening (217), the second through opening (217) of one of the second sliders (213) is located at the upper position of the second slider (213), the second through opening (217) of the other second slider (213) is located at the lower position of the second slider (213), a third through opening (218) is horizontally formed on each of the third sliders (214), the third synchronous belt (28) passes through the third through opening (218), the third through opening (218) of one of the third sliders (214) is located at the upper position of the third slider (214), the third through opening (218) of the other third slider (214) is located at the lower position of the third slider (214), and a servo reduction motor (219) is fixedly connected to the side wall of the end of the strip-shaped bin (21), and the end of the rotating shaft of the servo reduction motor (219) is fixedly connected to the end of one of the cross shafts (22).

3. The adjustable seeding device for tartary buckwheat planting according to claim 1, characterized in that: The seeding unit (3) includes a mounting frame (31) and a main body portion (32). The mounting frame (31) is fixedly connected to the U-shaped sliding frame (215). Inside the main body portion (32), a seeding bin (35) is fixedly connected. On the side wall of the main body portion (32), an air bin (36) is fixedly connected. The air bin (36) communicates with the seeding bin (35). An air port (37) is fixedly connected to and communicates with the air bin (36). A power shaft (38) is horizontally rotatably connected to the side wall of the main body portion (32) at the middle position of the seeding bin (35). The end of the power shaft (38) is located inside the seeding bin (35) and is fixedly connected to the middle of a seed discharging disc (39). A plurality of seed openings (343) are evenly formed at the edge of the seed discharging disc (39). An arc-shaped flap (310) is fixedly connected to the inner top of the seeding bin (35). A seeding flap (311) is fixedly connected to the inner bottom of the seeding bin (35). A seed dropping portion (33) is fixedly connected to the bottom surface of the main body portion (32). A plow blade (34) is fixedly connected to one end of the seed dropping portion (33) close to the mounting frame (1). The inside of the seed dropping portion (33) communicates with the seeding bin (35).

4. An adjustable seeding device for tartary buckwheat planting according to claim 3, wherein: A first support rod (319) and a second support rod (322) are arranged between the mounting frame (31) and the main body portion (32). The first support rod (319) is located above the second support rod (322). The first support rod (319) is parallel to the second support rod (322). One end of the first support rod (319) is fixedly connected to a first shaft column (318). The other end of the first support rod (319) is fixedly connected to a second shaft column (320). The first shaft column (318) is rotatably sleeved on the mounting frame (31). The second shaft column (320) is rotatably sleeved on the main body portion (32). One end of the second support rod (322) is fixedly connected to a third shaft column (321). The other end of the second support rod (322) is fixedly connected to a fourth shaft column (323). The third shaft column (321) is rotatably sleeved on the mounting frame (31). The fourth shaft column (323) is rotatably sleeved on the main body portion (32). Three ear blocks (334) are evenly fixedly connected to the side wall of the end of the first shaft column (318). A threaded tube (335) is fixedly sleeved on the ear block (334). A positioning bolt (336) is threadedly sleeved on the threaded tube (335). A plurality of threaded holes (337) are evenly formed on the side wall of the mounting frame (31) around the first shaft column (318). The end of the threaded tube (335) is threadedly connected to any one of the threaded holes (337).

5. The adjustable seeding device for tartary buckwheat planting according to claim 4, wherein: A drive shaft column (324) is rotatably sleeved on the third shaft column (321), and a driven shaft column (326) is rotatably sleeved on the fourth shaft column (323). A second driving sprocket (330) is fixedly sleeved at one end of the driven shaft column (326) close to the power shaft (38), and a first driven sprocket (328) is fixedly sleeved at the other end of the driven shaft column (326). A first driving sprocket (327) is fixedly sleeved at one end of the drive shaft column (324) close to the first driven sprocket (328), and a second driven sprocket (331) is fixedly sleeved at the end of the power shaft (38). A first transmission chain (329) is sleeved on the first driving sprocket (327) and the first driven sprocket (328), and a second transmission chain (332) is sleeved on the second driving sprocket (330) and the second driven sprocket (331). A hexagonal through opening (325) is horizontally formed in the drive shaft column (324).

6. The adjustable seeding device for tartary buckwheat planting according to claim 5, wherein: The driving structure (5) includes two side blocks (51), and the two side blocks (51) are fixedly connected to the side walls of the two end blocks (11). Two end shaft columns (52) are rotatably sleeved on the two side blocks (51), and a driving long shaft (53) is fixedly connected between the two end shaft columns (52). The cross-sectional shape of the driving long shaft (53) is hexagonal, and the driving long shaft (53) is slidably inserted into the hexagonal through opening (325). A gearbox (54) is fixedly connected to the side wall of one of the side blocks (51).

7. An adjustable seeding device for tartary buckwheat planting according to claim 6, characterized in that: An input shaft (56) and an output shaft (57) are horizontally rotatably connected in the gearbox (54). The end of the output shaft (57) passes through the side wall of the gearbox (54) and is fixedly connected to the end of one of the end shaft columns (52). An active small gear (58), an active medium gear (59), and an active large gear (510) are sequentially and equidistantly fixedly sleeved on the input shaft (56). A spline shaft (511) is fixedly sleeved on the output shaft (57), and a ball spline (512) is slidably sleeved on the spline shaft (511). A driven large gear (515), a driven medium gear (514), and a driven small gear (513) are sequentially and equidistantly fixedly sleeved on the ball spline (512). The distance between the active small gear (58), the active medium gear (59), and the active large gear (510) is greater than the distance between the driven large gear (515), the driven medium gear (514), and the driven small gear (513). The end of a U-shaped frame (516) is rotatably sleeved on the ball spline (512). A force receiving rod (517) is fixedly connected to the bottom of the U-shaped frame (516). A notch (518) is formed in the bottom surface of the gearbox (54) corresponding to the position of the force receiving rod (517). The force receiving rod (517) is horizontally slidably connected to the notch (518). The bottom end of the force receiving rod (517) is located outside the gearbox (54). A second cylinder (519) is fixedly connected to the bottom surface of the gearbox (54), and the output end of the second cylinder (519) is fixedly connected to the side wall of the bottom end of the force receiving rod (517). A driving reduction motor (55) is fixedly connected to the side wall of the gearbox (54), and the rotating shaft end of the driving reduction motor (55) is fixedly connected to the end of the input shaft (56).

8. The adjustable seeding device for tartary buckwheat planting according to claim 1, wherein: The locking structure (4) includes a bottom strip plate (41), the bottom strip plate (41) is fixedly connected to the bottom surfaces of two end blocks (11), a side opening (42) is formed on one side of the bottom strip plate (41) close to the seeding unit (3), a sliding rod (43) is horizontally and fixedly connected to the end of the side opening (42), six sliding sleeves (44) are horizontally slidably sleeved on the sliding rod (43), an installation frame (31) of the seeding unit (3) is fixedly connected to the side wall of the sliding sleeve (44), a fixed strip plate (45) is horizontally and fixedly connected in the side opening (42), a pressing plate (46) is horizontally slidably arranged at a position between the fixed strip plate (45) and the sliding rod (43) in the side opening (42), a first air cylinder (49) is fixedly sleeved in the middle of the fixed strip plate (45), the output end of the first air cylinder (49) is fixedly connected to the center of the side wall of the pressing plate (46), a plurality of guide rods (48) are horizontally fixedly connected to one side of the side wall of the pressing plate (46) close to the fixed strip plate (45), a plurality of guide holes (47) are horizontally formed in the fixed strip plate (45) corresponding to the plurality of guide rods (48), the guide rods (48) are slidably sleeved in the guide holes (47), and the pressing plate (46) contacts the side walls of the six sliding sleeves (44).

9. An adjustable seeding device for tartary buckwheat planting according to claim 3, characterized in that: The air blowing assembly (6) includes an air storage bin (61) and a fan (62), two seat bodies (12) are fixedly connected to the top surfaces of the two end blocks (11), the two ends of the air storage bin (61) are fixedly connected to the two seat bodies (12), the fan (62) is fixedly connected to the side wall of the installation frame (1), one end of a main air pipe (63) is fixedly connected and communicated with the fan (62), the other end of the main air pipe (63) is fixedly connected and communicated with the air storage bin (61), six flexible air pipes (64) are fixedly connected and communicated with the air storage bin (61), and the end of the flexible air pipe (64) is fixedly connected and communicated with an air port (37).

10. The adjustable seeding device for tartary buckwheat planting according to claim 9, characterized in that: A seed bin (333) is fixedly connected to the top surface of the main body part (32), the seed bin (333) is communicated with the inside of the seeding bin (35), a bin cover (342) is rotatably connected to the top surface of the seed bin (333), two short shafts (314) are horizontally fixedly connected to both sides of the main body part (32) close to the installation frame (31), a soil covering strip plate (315) is rotatably sleeved on each short shaft (314), a short block (316) is fixedly connected to the side wall of the main body part (32) close to the installation frame (31), two tension springs (317) are fixedly connected to the bottom surface of the short block (316), the bottom ends of the tension springs (317) are fixedly connected to the top ends of the soil covering strip plate (315), the bottom end of the soil covering strip plate (315) is bent towards one side of the installation frame (31), an inclined rod (338) is fixedly connected to one side of the main body part (32) away from the installation frame (31), a sleeve rod (339) is slidably sleeved on the inclined rod (338), a wheel frame (312) is fixedly connected to the side wall of the sleeve rod (339), a soil covering press wheel (313) is rotatably connected to the wheel frame (312), a threaded through hole (340) is formed in the side wall of the sleeve rod (339), a locking bolt (341) is threadedly connected to the threaded through hole (340), and the end of the locking bolt (341) contacts the side wall of the inclined rod (338).

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