A high-speed air-blowing precision seeder

Abstract

The present invention discloses a high-speed air-blowing precision seeder, which includes a horizontal frame of the seeder. In the middle of one side of the horizontal frame of the seeder, a connecting front frame is fixedly installed. In the middle of the top of the horizontal frame of the seeder, an installation top plate is fixedly connected. At one end of one side of the installation top plate, a power generation component is embedded and installed. In the middle of the other side of the installation top plate, a negative pressure fan component is embedded and installed. At the top of one end of the negative pressure fan component, a long air guide pipe is fixedly connected. At the edge of the top of the long air guide pipe, a protective top cover is clamped. The present invention effectively improves the smoothness of seeding of the seeder. Through the flexible transportation of corn seeds by high-speed air flow, it effectively prevents the phenomenon that the corn seeds are damaged due to mechanical shearing during the transportation process, ensures that the corn seeds can be completely planted into the field, improves the germination rate of the corn seeds after sowing, and improves the service performance of the seeder.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural implements, and particularly to a high-speed air-blowing precision seeder. Background Art

[0002] A seeder is a planting machine that uses crop seeds as the seeding object. A seeder for a certain type or kind of crop is often named after the crop type, such as a cereal drill seeder, a corn hill-drop planter, a cotton planter, a forage broadcaster, etc.

[0003] However, currently, when a seeder sows corn, it often uses mechanical components for transportation. Since corn seeds are relatively large in size and there is a problem of corn seeds being broken, they cannot germinate, and this cannot be discovered during sowing. As a result, some seeds do not germinate after planting, and replanting is required. Summary of the Invention

[0004] The present invention provides a high-speed air-blowing precision seeder, which can effectively solve the problem proposed in the above background art that currently, when a seeder sows corn, it often uses mechanical components for transportation. Since corn seeds are relatively large in size and there is a problem of corn seeds being broken, they cannot germinate, and this cannot be discovered during sowing. As a result, some seeds do not germinate after planting, and replanting is required.

[0005] To achieve the above object, the present invention provides the following technical solution: A high-speed air-blowing precision seeder, including a seeder cross frame, and a connecting front frame is fixedly installed in the middle of one side of the seeder cross frame;

[0006] An air-blowing circulating screening seeding mechanism is arranged on the top of the seeder cross frame. The air-blowing circulating screening seeding mechanism blows and transports the corn kernels to be sown through a high-speed circulating air flow, and separates the incomplete corn seeds during the transportation of the corn by using the weight difference between the complete corn seeds and the incomplete corn seeds;

[0007] An auxiliary support adjustment mechanism is arranged outside the seeder cross frame. The auxiliary support adjustment mechanism supports the components on the seeder through a structure of lifting and supporting and swinging, and dampens the components on the seeder during the lifting process of each structure.

[0008] According to the above technical solution, the air-blowing circulating screening seeding mechanism includes a mounting top plate;

[0009] The middle of the top end of the seeder cross frame is fixedly connected to the mounting top plate. One end of the mounting top plate is embedded with a power generation component, and the middle of the other side of the mounting top plate is embedded with a negative pressure fan component. The top of one end of the negative pressure fan component is fixedly connected to a wind guiding long pipe. The edge of the top end of the wind guiding long pipe is clamped with a protective top cover. The bottom of the negative pressure fan component is fixedly connected to an air delivery cross pipe through a pipeline at a position corresponding to one side of the seeder cross frame;

[0010] On one side of the middle part of the horizontal air delivery pipe, air guiding hoses are fixedly connected at equal intervals and evenly. At the position corresponding to the side surface of the horizontal air delivery pipe at the end of the air guiding hose, an air guiding inclined box is fixedly connected. On one side of the air guiding inclined box, a front box of the air box is fixedly installed. At one side position on the front surface of the front box of the air box, a feeding front notch is arranged. At the position corresponding to the top of the front box of the air box at the top of the feeding front notch, a seed storage box is installed by bolts. A sealing top cover is movably clamped on the top of the seed storage box;

[0011] Inside the front box of the air box, a limiting elastic sheet is fixedly installed at the position corresponding to one side of the feeding front notch. An adding seed lifting plate is movably inserted at the position corresponding to one side of the limiting elastic sheet inside the front box of the air box. At the middle part of the bottom end of the front box of the air box, a slag discharging bottom opening is arranged. At the top inside the slag discharging bottom opening, a slag discharging sealing plate is rotatably installed through a rotating shaft. At the middle position on the front surface of the front box of the air box, a driving end box is fixedly installed;

[0012] On the outside of the output shaft at the middle part of one end of the driving end box, a transfer middle plate is fixedly sleeved at the position corresponding to the inside of the front box of the air box. Guide seed side holes are evenly arranged in a circumferential direction along the side edge of the transfer middle plate. At the back position of the front box of the air box, a rear box of the air box is installed by bolts. At the middle part of the back surface of the rear box of the air box, an exhaust arc-shaped box is fixedly connected. On one side at the bottom inside the front box of the air box, a guide seed inner pipe is inserted and installed. At the middle part of the bottom end of the guide seed inner pipe, a seeding connecting pipe is tightly clamped. At the middle part of the bottom end of the seeding connecting pipe, a seeding elbow pipe is fixedly connected through a pipeline;

[0013] Inside the rear box of the air box, a separating soft wheel is rotatably installed through a rotating shaft at the position corresponding to the top of the guide seed inner pipe. At the middle part of the bottom end inside the rear box of the air box, an installation swing seat is fixedly connected. At the position corresponding to the bottom of the top end of the guide seed inner pipe at the end of the installation swing seat, a cleaning top roller is rotatably installed through a rotating shaft. On one side of the rear box of the air box away from the guide seed inner pipe, a combing top roller is rotatably installed through a rotating shaft;

[0014] On the outside of the front box of the air box, close to the side of the seed storage box, an adjusting clamping wheel is rotatably installed through a rotating shaft. On the outside of the end of the adjusting clamping wheel, an adjusting gear is fixedly sleeved at the position corresponding to the inside of the front box of the air box. Inside the front box of the air box, an adjusting arc-shaped plate is slidably clamped at the position corresponding to one side of the adjusting gear. On the side surface of the adjusting arc-shaped plate, a driven arc-shaped rack is fixedly connected at the position corresponding to the top of the adjusting gear. On the side surface of the adjusting arc-shaped plate, a connecting arc-shaped plate is movably installed through a rotating block. At the position corresponding to one side of the transfer middle plate at the end of the connecting arc-shaped plate, a separating cone block is rotatably installed.

[0015] According to the above technical solution, the negative pressure fan assembly is interconnected with the horizontal air delivery pipe and the air guiding hose. Each component inside the negative pressure fan assembly is powered by the power generation assembly. The horizontal air delivery pipe and the seeding machine cross frame are connected through arc-shaped brackets.

[0016] According to the above technical solution, the arc-shaped buckle at the end of the limiting elastic piece and the slot on the side of the seed-adding lifting plate are correspondingly buckled with each other. The outer side of the seed-adding lifting plate is closely and slidably attached to the inner wall of the front box of the air box, and the side of the seed-adding lifting plate is closely attached to the side of the front feeding notch.

[0017] According to the above technical solution, the motor inside the driving end box is powered by a power generation component, and a feeding square groove is opened at a position on the side of the transfer middle plate corresponding to one side of the seed guiding hole.

[0018] According to the above technical solution, the bottom notch of the exhaust arc-shaped box is communicated with the inner cavity of the rear box of the air box. The top side of the inner seed guiding tube is closely and slidably attached to the side of the transfer middle plate. The middle part of the outer side of the separation soft wheel is in contact and attached to the back of the transfer middle plate, and the contact position between the separation soft wheel and the transfer middle plate does not completely cover the seed guiding hole.

[0019] According to the above technical solution, the tapered top blocks on the outer sides of the cleaning top roller and the combing top roller are meshed with the seed guiding holes respectively. The tapered top block on the outer side of the cleaning top roller completely passes through the corresponding seed guiding hole, and the tapered top block on the outer side of the combing top roller only inserts into the corresponding seed guiding hole by half.

[0020] According to the above technical solution, the driven arc-shaped rack is meshed with the adjusting gear. The end of the separation cone block is closely and slidably attached to the side of the transfer middle plate, and the end of the separation cone block covers part of the end of the seed guiding hole.

[0021] According to the above technical solution, the auxiliary support adjusting mechanism includes a mounting bent frame;

[0022] Mounting bent frames are equidistantly and fixedly installed on the outer side of the horizontal frame of the seeder corresponding to the bottom position of the air delivery horizontal pipe. One side of the mounting bent frame is movably installed with a parallel swing frame through a connecting bolt. The end of the parallel swing frame is movably installed with a connecting vertical frame through a connecting bolt. A limiting spring is clamped between the mounting bent frame and the connecting vertical frame. A central mounting vertical plate is clamped in the middle of one side of the connecting vertical frame;

[0023] Connecting swing arms are installed on both sides of the bottom of the central mounting vertical plate through bolts. The bottom of the end of the connecting swing arm is rotatably installed with a depth-limiting guide wheel through a connecting plate. A mud scraping plate is fixedly connected to the side of the connecting swing arm corresponding to the outer side of the depth-limiting guide wheel. A seeding inner wheel is rotatably connected to the inner side of the depth-limiting guide wheel corresponding to the outer side of the seeding bent pipe;

[0024] The end of the central mounting vertical plate is movably mounted with a pressing suspension through a connecting bolt. A pressing spring is clamped between the end of the central mounting vertical plate and the pressing suspension. Both bottom sides of the pressing suspension are rotatably mounted with pressing inclined wheels through rotating shafts. A moving speed sensor is mounted on the middle part of the bottom surface of the central mounting vertical plate through a connecting frame. Both ends of the bottom surface of the central mounting vertical plate are rotatably mounted with supporting edge wheels through mounting frames.

[0025] According to the above technical solution, both ends of the limiting spring are respectively clamped with the mounting bent frame and the connecting vertical frame. The mounting bent frame and the connecting vertical frame can displace in the vertical direction. The central mounting vertical plate and the seed storage tank are connected through a mounting frame;

[0026] The side surface of the mud scraping plate is closely and slidably attached to the outer side of the depth limiting guide wheel. The end of the pressing spring is clamped with the pressing suspension.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is scientific and reasonable, and it is safe and convenient to use:

[0028] 1. An air-blowing cyclic screening and sowing mechanism is provided. Through the mutual cooperation among the components inside the air-blowing cyclic screening and sowing mechanism, the transportation and sowing process of corn seeds is optimized. Through the mutual cooperation among the negative pressure fan assembly, the air delivery horizontal pipe, and the air guiding flexible pipe, a continuous high-speed air flow is generated inside the front box of the air box and the rear box of the air box. And through the high-speed air flow, in cooperation with the transfer middle plate and the components installed on its side surface, the corn seeds to be sown are transported, screened, and then the good-quality corn seeds can be planted into the field in sequence through the sowing connecting pipe and the sowing bent pipe, effectively improving the smoothness of the seeding of the seeder. And through the flexible transportation of the corn seeds by the high-speed air flow, effectively preventing the phenomenon that the corn seeds are damaged due to mechanical shearing during the transportation process, ensuring that the corn seeds can be completely planted into the field, improving the germination rate of the corn seeds after sowing, and improving the use performance of the seeder;

[0029] Meanwhile, during the process of transporting the corn seeds by the transfer middle plate, the transportation state of the corn seeds is adjusted through the separation soft wheel, the cleaning top roller, the combing top roller, and the separation cone block. The shape of the seeds adsorbed inside the seed guiding side holes is adjusted through the combing top roller, and then the number of seeds on the side surface of the seed guiding side holes is adjusted through the separation cone block to ensure that there is only one seed inside each seed guiding side hole. And through the separation soft wheel, the ventilation volume inside the corresponding seed guiding side holes can be adjusted, so that the gravity received by the complete seeds is greater than the thrust received by them, making full use of the gravity difference between the complete seeds and the defective seeds to screen the seeds, ensuring that the complete seeds can smoothly fall into the seed guiding inner pipe for planting, and the remaining damaged seeds inside the seed guiding side holes are ejected by the cleaning top roller to ensure the smoothness of the cyclic transportation of the corn seeds;

[0030] Moreover, the addition rate of seeds inside the seed storage bin is adjusted by the limit elastic piece and the seeding lifting plate to ensure that the number of seeds inside the front box of the air box can always be kept within an appropriate range. Then, the position of the separation cone block is adjusted by the adjusting caster and the adjusting gear to ensure that the positional relationship between the separation cone block and the seed guiding side hole can reach the target position, ensuring that only one seed will be adsorbed on the side of the seed guiding side hole during seeding, thus improving the utilization rate during the seed planting process.

[0031] 2. An auxiliary support adjustment mechanism is provided. Through the mutual cooperation among the components inside the auxiliary support adjustment mechanism, the traveling adjustment process of the seeder is optimized. Through the mutual cooperation among the parallel swing frame, the connecting vertical frame, and the limit spring, the jitter amplitude of the seeding components of the seeder during traveling is reduced, enabling the seeding components to smoothly undulate according to the terrain of the field, effectively improving the working environment of each part inside the seeding components and increasing the service life of the seeder. At the same time, through the mutual cooperation between the depth-limiting guide wheel and the pressing inclined wheel, the seeding depth of corn is adjusted to ensure that the corn seeds can be planted within an appropriate depth range, and the sown corn seeds are covered and compacted by the pressing inclined wheel, further ensuring the seeding effect of the corn seeds;

[0032] Meanwhile, the traveling speed of the seeder is monitored in real time by the speed sensor, so that the seeder can adjust the rotation speed of the transfer middle plate according to the moving speed, thereby realizing the adjustment of the planting density of the corn seeds, effectively improving the adjustability during the corn seed seeding process, and effectively increasing the flexibility of the overall planting components through the mutual cooperation between the pressing spring and the limit spring, effectively improving the running stability of the seeder.

[0033] In summary, through the mutual cooperation among the components inside the air-blowing cyclic screening seeding mechanism and the auxiliary support adjustment mechanism, the transportation process and seeding process of the corn seeds are optimized. The corn seeds are transported and screened by high-speed air flow, effectively preventing the phenomenon of damage to the corn seeds during transportation and seeding, and effectively preventing the damaged seeds from being planted in the field and reducing the planting density of corn. At the same time, by adjusting each component inside the planter, the smooth operation and seeding rate of the corn seeds are ensured, further improving the convenience of using the seeder. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0035] In the drawings:

[0036] Figure 1 is a schematic structural diagram of the present invention;

[0037] Figure 2 It is a schematic structural diagram of the installation of the seed storage bin of the present invention;

[0038] Figure 3 It is a schematic structural diagram of the air-blowing type circulating screening and sowing mechanism of the present invention;

[0039] Figure 4 It is a schematic structural diagram of the installation of the slag discharge bottom opening of the present invention;

[0040] Figure 5 It is a schematic structural diagram of the installation of the feed front notch of the present invention;

[0041] Figure 6 It is a schematic structural diagram of the installation of the transfer middle plate of the present invention;

[0042] Figure 7 It is a schematic structural diagram of the installation of the separation soft wheel of the present invention;

[0043] Figure 8 It is a schematic structural diagram of the installation of the separation cone block of the present invention;

[0044] Figure 9 It is a schematic structural diagram of the auxiliary support and adjustment mechanism of the present invention;

[0045] Figure 10 It is a schematic structural diagram of the installation of the support side wheel of the present invention;

[0046] Reference numerals in the figure: 1. Sowing machine cross frame; 2. Connecting front frame;

[0047] 3. Air-blowing type circulating screening and sowing mechanism; 301. Installation top plate; 302. Power generation component; 303. Negative pressure fan component; 304. Air guiding long pipe; 305. Protective top cover; 306. Air conveying cross pipe; 307. Air guiding hose; 308. Air guiding inclined box; 309. Air box front box; 310. Feed front notch; 311. Seed storage bin; 312. Sealing top cover; 313. Limit elastic sheet; 314. Seed adding lifting plate; 315. Slag discharge bottom opening; 316. Slag discharge sealing plate; 317. Driving end box; 318. Transfer middle plate; 319. Seed guiding side hole; 320. Air box rear box; 321. Exhaust arc box; 322. Seed guiding inner pipe; 323. Sowing connecting pipe; 324. Sowing elbow pipe; 325. Separation soft wheel; 326. Installation swing seat; 327. Cleaning top roller; 328. Combing top roller; 329. Adjusting clamping wheel; 330. Adjusting gear; 331. Adjusting arc plate; 332. Driven arc rack; 333. Connecting arc plate; 334. Separation cone block;

[0048] 4. Auxiliary support adjustment mechanism; 401. Installation bending frame; 402. Parallel swing frame; 403. Connecting vertical frame; 404. Limiting spring; 405. Central installation vertical plate; 406. Connecting swing arm; 407. Depth-limiting guide wheel; 408. Mud scraper; 409. Sowing inner wheel; 410. Pressing suspension; 411. Pressing spring; 412. Pressing inclined wheel; 413. Speed sensor; 414. Supporting side wheel. Specific implementation mode

[0049] The following is a description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0050] Example: As Figures 1-10 shown, the present invention provides a technical solution, a high-speed air-blowing precision seeder, including a seeder cross frame 1, and a connecting front frame 2 is fixedly installed in the middle of one side of the seeder cross frame 1;

[0051] An air-blowing circulating screening sowing mechanism 3 is arranged on the top of the seeder cross frame 1. The air-blowing circulating screening sowing mechanism 3 blows and transports the corn kernels to be sown through a high-speed circulating air flow, and separates the incomplete corn kernels during the transportation of the corn by using the weight difference between the complete corn seeds and the incomplete corn seeds, so as to realize the sowing of the corn seeds;

[0052] The air-blowing circulating screening sowing mechanism 3 includes an installation top plate 301, a power generation component 302, a negative pressure fan component 303, a wind guiding long pipe 304, a protective top cover 305, an air delivery cross pipe 306, a wind guiding hose 307, a wind guiding inclined box 308, a wind box front box 309, a feeding front notch 310, a seed storage box 311, a sealing top cover 312, a limiting elastic sheet 313, a seed adding lifting plate 314, a slag discharging bottom opening 315, a slag discharging sealing plate 316, a driving end box 317, a transfer middle plate 318, a seed guiding side hole 319, a wind box rear box 320, an exhaust arc box 321, a seed guiding inner pipe 322, a sowing connecting pipe 323, a sowing elbow pipe 324, a separating soft wheel 325, an installation swing seat 326, a cleaning top roller 327, a combing top roller 328, an adjusting clamping wheel 329, an adjusting gear 330, an adjusting arc plate 331, a driven arc rack 332, a connecting arc plate 333 and a separating cone block 334;

[0053] At the middle part of the top end of the horizontal frame 1 of the seeder, there is a fixedly connected installation top plate 301. On one side end of the installation top plate 301, a power generation component 302 is embedded and installed. In the middle part of the other side of the installation top plate 301, a negative pressure fan component 303 is embedded and installed. At the top of one end of the negative pressure fan component 303, there is a fixedly connected air guiding long pipe 304. At the edge of the top end of the air guiding long pipe 304, a protective top cover 305 is clamped. At the position corresponding to one side of the horizontal frame 1 of the seeder at the bottom of the negative pressure fan component 303, an air conveying horizontal pipe 306 is fixedly connected through a pipeline. The negative pressure fan component 303 is interconnected with the air conveying horizontal pipe 306 and the air guiding hose 307. All components inside the negative pressure fan component 303 are powered by the power generation component 302. The air conveying horizontal pipe 306 and the horizontal frame 1 of the seeder are connected through arc-shaped brackets;

[0054] At the middle part of one side of the air conveying horizontal pipe 306, air guiding hoses 307 are fixedly connected at equal intervals and evenly. At the position corresponding to the side surface of the air conveying horizontal pipe 306 at the end of the air guiding hose 307, an air guiding inclined box 308 is fixedly connected. On one side of the air guiding inclined box 308, a front box of the air box 309 is fixedly installed. At one side position on the front surface of the front box of the air box 309, there is a feeding front notch 310. At the position corresponding to the top of the front box of the air box 309 at the top end of the feeding front notch 310, a seed storage bin 311 is installed through bolts. On the top of the seed storage bin 311, a sealing top cover 312 is movably clamped;

[0055] Inside the front box of the air box 309, a limiting elastic sheet 313 is fixedly installed at the position corresponding to one side of the feeding front notch 310. Inside the front box of the air box 309, a seed adding lifting plate 314 is movably inserted at the position corresponding to one side of the limiting elastic sheet 313. The arc-shaped buckle at the end of the limiting elastic sheet 313 and the side slot on the side surface of the seed adding lifting plate 314 are correspondingly buckled. The outer side of the seed adding lifting plate 314 is in close sliding fit with the inner wall of the front box of the air box 309, and the side surface of the seed adding lifting plate 314 is in close fit with the side surface of the feeding front notch 310;

[0056] At the middle part of the bottom end of the front box of the air box 309, there is a slag discharging bottom opening 315. Inside the top of the slag discharging bottom opening 315, a slag discharging sealing plate 316 is rotatably installed through a rotating shaft. At the middle position on the front surface of the front box of the air box 309, a driving end box 317 is fixedly installed;

[0057] At the position corresponding to the inside of the front box of the air box 309 on the outer side of the output shaft at the middle part of one end of the driving end box 317, a transfer middle plate 318 is fixedly sleeved. Along the circumferential direction, guiding seed side holes 319 are evenly penetrated through the side edge of the transfer middle plate 318. The motor inside the driving end box 317 is powered by the power generation component 302. At the position corresponding to one side of the guiding seed side holes 319 on the side surface of the transfer middle plate 318, a guiding material square groove is opened;

[0058] The back box 320 of the bellows is installed by bolts at the back position of the front box 309 of the bellows. A discharge arc box 321 is fixedly connected to the middle of the back of the back box 320 of the bellows. An inner seed guide tube 322 is inserted and installed at one side of the inner bottom of the front box 309 of the bellows. A seeding connecting pipe 323 is tightly clamped in the middle of the bottom end of the inner seed guide tube 322. A seeding elbow 324 is fixedly connected to the middle of the bottom end of the seeding connecting pipe 323 through a pipe.

[0059] A separating soft wheel 325 is rotatably installed through a rotating shaft at a position corresponding to the top of the inner seed guide tube 322 inside the back box 320 of the bellows. The bottom notch of the discharge arc box 321 communicates with the inner cavity of the back box 320 of the bellows. One side of the top of the inner seed guide tube 322 is in close sliding fit with the side of the transfer middle plate 318. The middle part of the outside of the separating soft wheel 325 is in contact and fit with the back of the transfer middle plate 318, and the contact position between the separating soft wheel 325 and the transfer middle plate 318 does not completely cover the seed guide side hole 319.

[0060] An installation swing seat 326 is fixedly connected to the middle of the inner bottom end of the back box 320 of the bellows. A cleaning top roller 327 is rotatably installed through a rotating shaft at the position corresponding to the bottom of the top of the inner seed guide tube 322 at the end of the installation swing seat 326. A combing top roller 328 is rotatably installed through a rotating shaft at a position on the side of the inside of the back box 320 of the bellows away from the inner seed guide tube 322. The conical top blocks on the outside of the cleaning top roller 327 and the combing top roller 328 are meshed with the seed guide side hole 319. The conical top block on the outside of the cleaning top roller 327 completely passes through the inside of the corresponding seed guide side hole 319, and the conical top block on the outside of the combing top roller 328 only inserts into the inside of the corresponding seed guide side hole 319 by one-half.

[0061] On one side of the outer side of the front box 309 of the bellows, near the seed storage bin 311, an adjusting cam wheel 329 is rotatably installed through a rotating shaft. A fixed socket adjusting gear 330 is sleeved on the outer side of the end of the adjusting cam wheel 329 corresponding to the position inside the front box 309 of the bellows. An adjusting arc plate 331 is slidably clamped inside the front box 309 of the bellows corresponding to one side of the adjusting gear 330. A driven arc rack 332 is fixedly connected to the side of the adjusting arc plate 331 corresponding to the top of the adjusting gear 330. A connecting arc plate 333 is movably installed on the side of the adjusting arc plate 331 through a rotating block. A separating cone 334 is rotatably installed at the end of the connecting arc plate 333 corresponding to one side of the transfer middle plate 318. The driven arc rack 332 and the adjusting gear 330 are meshed with each other. The end of the separating cone 334 is closely slidably attached to the side of the transfer middle plate 318. The end of the separating cone 334 covers part of the end of the seed guiding side hole 319. Through the mutual cooperation between the components inside the pneumatic blowing type circulating screening and sowing mechanism 3, the transportation and sowing process of corn seeds is optimized. Through the mutual cooperation between the negative pressure fan assembly 303, the air delivery cross pipe 306 and the air guiding hose 307, a continuous high-speed air flow is generated inside the front box 309 and the rear box 320 of the bellows. The high-speed air flow is used to cooperate with the transfer middle plate 318 and the components installed on its side to transport, screen the corn seeds to be sown. Then, the corn seeds with good appearance can be planted into the field in sequence through the sowing connecting pipe 323 and the sowing elbow pipe 324, effectively improving the smoothness of the seeder during sowing. And through the flexible transportation of the corn seeds by the high-speed air flow, it effectively prevents the phenomenon that the corn seeds are damaged due to mechanical shearing during the transportation process, ensuring that the corn seeds can be completely planted into the field, improving the germination rate of the corn seeds after sowing, and improving the service performance of the seeder;

[0062] Meanwhile, during the process of transporting the corn seeds through the transfer middle plate 318, the transportation state of the corn seeds is adjusted by the separating soft wheel 325, the cleaning top roller 327, the combing top roller 328 and the separating cone 334. The shape of the seeds adsorbed inside the seed guiding side hole 319 is adjusted by the combing top roller 328. Then, the number of seeds on the side of the seed guiding side hole 319 is adjusted by the separating cone 334 to ensure that there is only one seed inside each seed guiding side hole 319. And the ventilation volume inside the corresponding seed guiding side hole 319 can be adjusted by the separating soft wheel 325, so that the gravity of the complete seeds is greater than the thrust they receive. The gravity difference between the complete seeds and the incomplete seeds is fully utilized to screen the seeds, ensuring that the complete seeds can smoothly fall into the seed guiding inner pipe 322 for planting. The residual damaged seeds inside the seed guiding side hole 319 are ejected by the cleaning top roller 327 to ensure the smoothness of the cyclic transportation of the corn seeds;

[0063] Moreover, the addition rate of seeds inside the seed storage bin 311 is adjusted by the limiting elastic piece 313 and the seed-adding lifting plate 314 to ensure that the number of seeds inside the front box 309 of the air box can always be maintained within an appropriate range. Then, the position of the separation cone block 334 is adjusted by the adjusting caster 329 and the adjusting gear 330 to ensure that the positional relationship between the separation cone block 334 and the seed-guiding side hole 319 can reach the target position, ensuring that only one seed is adsorbed on the side of the seed-guiding side hole 319 during sowing, and improving the utilization rate during the seed planting process;

[0064] An auxiliary support adjustment mechanism 4 is provided outside the horizontal frame 1 of the seeder. The auxiliary support adjustment mechanism 4 performs auxiliary support on each component of the seeder through a structure of lifting and supporting swing, and dampens each component on the seeder during the lifting process of each structure;

[0065] The auxiliary support adjustment mechanism 4 includes a mounting bent frame 401, a parallel swing frame 402, a connecting vertical frame 403, a limiting spring 404, a central mounting vertical plate 405, a connecting swing arm 406, a depth-limiting guide wheel 407, a mud scraper 408, a seeding inner wheel 409, a rolling suppression suspension 410, a pressing spring 411, a rolling suppression inclined wheel 412, a speed sensor 413, and a supporting side wheel 414;

[0066] Mounting bent frames 401 are fixedly installed at equal intervals outside the horizontal frame 1 of the seeder corresponding to the bottom position of the air delivery horizontal pipe 306. One side of the mounting bent frame 401 is movably installed with a parallel swing frame 402 through a connecting bolt. The end of the parallel swing frame 402 is movably installed with a connecting vertical frame 403 through a connecting bolt. A limiting spring 404 is clamped between the mounting bent frame 401 and the connecting vertical frame 403, and a central mounting vertical plate 405 is clamped in the middle of one side of the connecting vertical frame 403;

[0067] Connecting swing arms 406 are installed at both bottoms of both sides of the central mounting vertical plate 405 through bolts. A depth-limiting guide wheel 407 is rotatably installed at the bottom of the end of the connecting swing arm 406 through a connecting plate. A mud scraper 408 is fixedly connected to the side of the connecting swing arm 406 corresponding to the outside of the depth-limiting guide wheel 407. A seeding inner wheel 409 is rotatably connected to the inside of the depth-limiting guide wheel 407 corresponding to the outside of the seeding bent pipe 324;

[0068] The end of the central mounting vertical plate 405 is movably installed with a rolling suppression suspension 410 through a connecting bolt. A pressing spring 411 is clamped between the end of the central mounting vertical plate 405 and the rolling suppression suspension 410. Both ends of the limiting spring 404 are respectively clamped with the mounting bent frame 401 and the connecting vertical frame 403. The mounting bent frame 401 and the connecting vertical frame 403 can perform vertical displacement. The central mounting vertical plate 405 is connected to the seed storage bin 311 through a mounting frame;

[0069] On both sides of the bottom of the pressing suspension 410, pressing inclined wheels 412 are rotatably installed through rotating shafts. In the middle of the bottom surface of the central installation vertical plate 405, a moving speed sensor 413 is installed through a connecting frame. At both ends of the bottom surface of the central installation vertical plate 405, supporting side wheels 414 are rotatably installed through mounting frames. The side surface of the mud scraping plate 408 is in close sliding fit with the outer side of the depth limiting guide wheel 407. The end of the pressing spring 411 is mutually clamped with the pressing suspension 410. Through the mutual cooperation of the components inside the auxiliary support adjustment mechanism 4, the traveling adjustment process of the seeder is optimized. Through the mutual cooperation between the parallel swing frame 402, the connecting vertical frame 403, and the limit spring 404, the shaking amplitude of the seeding components of the seeder during traveling is reduced, enabling the seeding components to smoothly undulate according to the terrain of the field, effectively improving the working environment of each part inside the seeding components, increasing the service life of the seeder. At the same time, through the mutual cooperation between the depth limiting guide wheel 407 and the pressing inclined wheel 412, the seeding depth of the corn is adjusted to ensure that the corn seeds can be planted within a suitable depth range, and the sown corn seeds are covered and compacted by the pressing inclined wheel 412, further ensuring the planting effect of the corn seeds;

[0070] At the same time, the moving speed sensor 413 is used to monitor the traveling speed of the seeder in real time, so that the seeder can adjust the rotation speed of the transfer middle plate 318 according to the moving speed, thereby realizing the adjustment of the planting density of the corn seeds, effectively improving the adjustability during the seeding process of the corn seeds, and through the mutual cooperation between the pressing spring 411 and the limit spring 404, the flexibility of the overall planting components is effectively increased, effectively improving the running stability of the seeder.

[0071] The working principle and usage process of the present invention: During the process of using the seeder to sow corn, it is necessary to first install the connecting front frame 2 and its components on the tail of the agricultural machine, and then the agricultural machine synchronously pulls the seeding machine cross frame 1 and its components. During the formal seeding stage of the seeder, start the power generation component 302 on the side of the installation top plate 301 to continuously generate electricity to supply power to the negative pressure fan component 303. Then, during the continuous operation of the negative pressure fan component 303, it sucks external air through the air guiding long pipe 304, and during the process of the air guiding long pipe 304 sucking air, its top is protected by the protective top cover 305;

[0072] Then, the negative pressure fan component 303 generates continuous high-speed airflow inside the air delivery cross pipe 306, and then the airflow inside the air delivery cross pipe 306 is introduced into the air guiding inclined box 308 through the air guiding hose 307. Then, the high-speed airflow is introduced into the internal cavities of the air box front box 309 and the air box rear box 320 through the air guiding inclined box 308, and the airflow inside the air box rear box 320 is discharged through the exhaust arc box 321;

[0073] In the process of high-speed airflow passing horizontally through the interior of the bellows front box 309 and the bellows rear box 320, the airflow inside the bellows front box 309 is intercepted by the transfer middle plate 318, and then the high-speed airflow is directionally guided by the seed guide side holes 319 on the side of the transfer middle plate 318, so that local high-speed airflow is generated at the edge of the seed guide side holes 319, and then the seed adding lifting plate 314 is pulled upward along the side of the front feeding slot 310, so that the bellows front box 309 is connected with the seed storage box 311 through the front feeding slot 310, so that the corn seeds in the seed storage box 311 can smoothly enter the interior of the bellows front box 309, and the height of the seed adding lifting plate 314 is clamped and limited by the limiting elastic sheet 313, so as to realize the adjustment of the corn seed adding rate inside the bellows front box 309. When the residual material in the bellows front box 309 needs to be discharged, the slag discharge sealing plate 316 can be opened to discharge the material in the bellows front box 309 through the slag discharge bottom opening 315;

[0074] The high-speed airflow inside the bellows front box 309 can drive the corn inside to slide along the outer side of the transport middle plate 318, and the corn kernels are clamped to the end of the seed guide side hole 319 by the airflow, and the driving end box 317 drives the transport middle plate 318 to rotate while driving the corn seeds to move. In the process of the corn seeds rotating along the outer side of the transport middle plate 318, the separation soft wheel 325, the cleaning top roller 327 and the combing top roller 328 will rotate synchronously with the transport middle plate 318. When the transport middle plate 318 drives the corn seeds to rotate to the side of the combing top roller 328, the conical top block outside the combing top roller 328 radially combs the position and shape of the seeds inside the corresponding seed guide side hole 319 to prevent the seeds from fitting more closely to the inner wall of the seed guide side hole 319 and being unable to separate normally.

[0075] Then, when the transport middle plate 318 drives the seeds to be transported to the side of the separation cone block 334, the seeds on the side of the seed guide side hole 319 can be pushed laterally through the separation cone block 334, so that the excess seeds on the side of the seed guide side hole 319 will be squeezed away from the center position of the seed guide side hole 319 and fall off naturally, so as to ensure that each seed guide side hole 319 corresponds to only one corn seed. When it is necessary to adjust the position of the separation cone block 334, the adjusting gear 330 is driven to rotate by turning the adjusting card wheel 329, and during the rotation of the adjusting gear 330, the adjusting arc plate 331 can be driven to slide through the driven arc rack 332, and during the sliding of the adjusting arc plate 331, the separation cone block 334 is driven to slide along the side of the transport middle plate 318 through the connecting arc plate 333, thereby realizing the adjustment of the relative position of the separation cone block 334 and the seed guide side hole 319;

[0076] When the transfer middle plate 318 drives the seeds to continue to approach the top of the seed guiding inner tube 322 after passing by the side of the separation cone block 334, and when the seeds are transported to the side of the separation soft wheel 325, since the separation soft wheel 325 can shield the seed guiding side holes 319, the air flow intensity inside the corresponding seed guiding side holes 319 is weakened. At this time, the damaged seeds will continue to be stuck inside the seed guiding side holes 319 under the action of the air flow, and the intact corn seeds inside the corresponding seed guiding side holes 319 will fall into the seed guiding inner tube 322, and the seeds falling into the seed guiding inner tube 322 are guided into the sowing elbow 324 through the sowing connecting pipe 323, and then the seeds are sown into the field through the sowing elbow 324. When the transfer middle plate 318 continues to rotate to the side of the cleaning top roller 327, the residual corn seeds inside the seed guiding side holes 319 are ejected by the conical top block on the outside of the cleaning top roller 327 to clean the inside of the seed guiding side holes 319, so that the transfer middle plate 318 transports a new round of corn seeds in the subsequent cycle process;

[0077] During the continuous transportation process by the seeder, it is necessary to support and damp the seeder. The parallel swing frame 402 and the connecting vertical frame 403 are installed on the side of the seeder cross frame 1 through the installation bending frame 401, and the shapes of the parallel swing frame 402 and the connecting vertical frame 403 are supported by the limiting spring 404. When there is a slight undulation during the operation of the seeder, the parallel lifting between the installation bending frame 401 and the connecting vertical frame 403 damps the seed storage bin 311 and its components;

[0078] At the same time, the depth of the sowing elbow 324 is adjusted by the depth limiting guide wheel 407 on the side of the connecting swing arm 406, so as to realize the adjustment of the sowing depth of the corn seeds. During the rotation of the depth limiting guide wheel 407, the outside of the depth limiting guide wheel 407 is continuously wiped by the mud scraping plate 408, so that the surface of the depth limiting guide wheel 407 is kept clean. The pressing spring 411 continuously presses down the pressing suspension 410 and its components, and the soil is guided and compacted by the pressing inclined wheel 412 to complete the planting and covering of the corn seeds. Then, the moving speed of the seeder is adjusted by the moving speed sensor 413 to adjust the rotation speed of the transfer middle plate 318 according to the running speed of the seeder, realizing the adjustment of the sowing density of the corn seeds.

[0079] Finally, it should be noted that the above are only the preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-speed air-blowing precision seeder, comprising a seeder cross frame (1), characterized in that: A connecting front frame (2) is fixedly mounted in the middle of one side of the seeder cross frame (1); An air-blowing circulating screening sowing mechanism (3) is arranged on the top of the seeder cross frame (1), and the air-blowing circulating screening sowing mechanism (3) blows and transports the corn kernels to be sown through a high-speed circulating airflow, and during the corn transportation process, utilizes the weight difference between complete corn seeds and incomplete corn seeds to separate the incomplete corn seeds; The air-blowing circulating screening and sowing mechanism (3) comprises a mounting top plate (301), a bellows front box (309) and a transport middle plate (318); Seed guide side holes (319) are evenly penetrated and opened along the circumferential direction on the side edge of the transfer middle plate (318); a bellows rear box (320) is installed at the back of the bellows front box (309) by bolts; a seed guide inner tube (322) is inserted and installed at a position on one side of the inner bottom of the bellows front box (309); and a mounting seat (326) is fixedly connected to the middle of the inner bottom of the bellows rear box (320); A separation soft wheel (325) for adjusting the ventilation volume is installed at a position corresponding to the top of the seed guide inner tube (322) in the bellows rear box (320) by rotating through a shaft, and the middle part of the outer side of the separation soft wheel (325) and the back side of the transfer middle plate (318) are in contact with each other, and the contact position between the separation soft wheel (325) and the transfer middle plate (318) will not completely cover the seed guide side hole (319); A cleaning top roller (327) is rotatably mounted on the end of the mounting swing seat (326) at a position corresponding to the top bottom of the seed guide inner tube (322) via a rotating shaft, and a combing top roller (328) for adjusting the seed shape is rotatably mounted on the inside of the bellows rear box (320) at a position away from the seed guide inner tube (322) via a rotating shaft; The outer conical top blocks of the cleaning top roller (327) and the combing top roller (328) are meshed with the seed guide side hole (319), the outer conical top block of the cleaning top roller (327) completely passes through the corresponding seed guide side hole (319), and the outer conical top block of the combing top roller (328) is only inserted into one half of the corresponding seed guide side hole (319); An auxiliary support adjustment mechanism (4) is arranged on the outside of the seeder cross frame (1), and the auxiliary support adjustment mechanism (4) provides auxiliary support to various components on the seeder through a lifting and supporting swinging structure, and reduces vibration for various components on the seeder during the lifting and lowering process of each structure.

2. A high-speed air-blowing precision seeder according to claim 1, characterized in that: A mounting top plate (301) is fixedly connected to the middle of the top of the seed drill cross frame (1); a power generation assembly (302) is embedded and installed at the end of one side of the mounting top plate (301); a negative pressure fan assembly (303) is embedded and installed at the middle of the other side of the mounting top plate (301); a long air guide tube (304) is fixedly connected to the top of one end of the negative pressure fan assembly (303); a protective top cover (305) is clamped on the edge of the top of the long air guide tube (304); and an air supply cross pipe (306) is fixedly connected to the bottom of the negative pressure fan assembly (303) at a position corresponding to one side of the seed drill cross frame (1) through a pipeline; An air guide hose (307) is evenly and evenly fixedly connected to the middle of one side of the air delivery transverse pipe (306); an air guide inclined box (308) is fixedly connected to the end of the air guide hose (307) at a position corresponding to the side of the air delivery transverse pipe (306); a bellows front box (309) is fixedly installed on one side of the bellows front box (308); a feed front notch (310) is provided at a position on one side of the front of the bellows front box (309); a seed storage box (311) is installed at a position corresponding to the top of the bellows front box (309) via bolts at the top of the feed front notch (310); and a sealing top cover (312) is movably connected to the top of the seed storage box (311); A limiting elastic sheet (313) is fixedly installed at a position on one side of the front feed slot (310) inside the bellows front box (309), and a seeding lifting plate (314) is movably inserted at a position on one side of the limiting elastic sheet (313) inside the bellows front box (309). A slag discharge bottom opening (315) is provided in the middle of the bottom end of the bellows front box (309), and a slag discharge sealing plate (316) is rotatably installed on the top of the inner side of the slag discharge bottom opening (315) via a rotating shaft. A driving end box (317) is fixedly installed at the middle of the front face of the bellows front box (309); A transfer middle plate (318) is fixedly sleeved at a position inside the bellows front box (309) corresponding to the outer side of the output shaft at the middle of one end of the driving end box (317); an exhaust arc box (321) is fixedly connected to the middle of the back side of the bellows rear box (320); a sowing connection pipe (323) is tightly clamped to the middle of the bottom end of the seed guide inner tube (322); and a sowing bend pipe (324) is fixedly connected to the middle of the bottom end of the sowing connection pipe (323) via a pipeline; An adjusting clamping wheel (329) is rotatably mounted on the outside of the bellows front box (309) at a position close to the seed storage box (311) via a rotating shaft; an adjusting gear (330) is fixedly sleeved on the outside of the end of the adjusting clamping wheel (329) at a position corresponding to the inside of the bellows front box (309); an adjusting arc plate (331) is slidably clamped at a position corresponding to the side of the adjusting gear (330) inside the bellows front box (309); a driven arc rack (332) is fixedly connected to the side of the adjusting arc plate (331) at a position corresponding to the top of the adjusting gear (330); a connecting arc plate (333) is movably mounted on the side of the adjusting arc plate (331) via a rotating block; a separation cone block (334) is rotatably mounted on the end of the connecting arc plate (333) at a position corresponding to the side of the transport middle plate (318).

3. A high-speed air-blowing precision seeder according to claim 2, characterized in that: The negative pressure fan assembly (303) is interconnected with the air delivery transverse pipe (306) and the air guide hose (307); each component inside the negative pressure fan assembly (303) is powered by the power generation assembly (302); and the air delivery transverse pipe (306) and the seed drill cross frame (1) are connected via an arc-shaped bracket.

4. A high-speed air-blowing precision seeder according to claim 2, characterized in that: The arc-shaped buckle at the end of the limiting elastic sheet (313) and the side slot of the seed adding lifting plate (314) are correspondingly buckled with each other, the outer side of the seed adding lifting plate (314) and the inner wall of the bellows front box (309) are tightly slidably fitted, and the side surface of the seed adding lifting plate (314) and the side surface of the feeding front notch (310) are tightly fitted.

5. A high-speed air-blowing precision seeder according to claim 2, characterized in that: The motor inside the driving end box (317) is powered by a power generation assembly (302), and a material guide square groove is provided on the side of the transfer middle plate (318) at a position corresponding to one side of the seed guide side hole (319).

6. A high-speed air-blowing precision seeder according to claim 2, characterized in that: The bottom notch of the exhaust arc box (321) is connected to the inner cavity of the bellows rear box (320), and the top side of the seed guide inner tube (322) is tightly slidably fitted to the side of the transport middle plate (318).

7. A high-speed air-blowing precision seeder according to claim 2, characterized in that: The driven arc-shaped rack (332) and the adjusting gear (330) are meshed with each other, and the end of the separation cone block (334) is tightly slidably fitted with the side position of the transfer middle plate (318), and the end of the separation cone block (334) covers a portion of the end of the seed guide side hole (319).

8. The high-speed air-blowing precision seeder according to claim 1, characterized in that: The auxiliary support adjustment mechanism (4) comprises a mounting bent frame (401); An installation bent frame (401) is fixedly installed at an equal distance on the outside of the seed drill horizontal frame (1) at a position corresponding to the bottom of the air delivery horizontal pipe (306); a parallel swing frame (402) is movably installed on one side of the installation bent frame (401) via a connecting bolt; a connecting vertical frame (403) is movably installed on the end of the parallel swing frame (402) via a connecting bolt; a limit spring (404) is clamped between the installation bent frame (401) and the connecting vertical frame (403); and a central installation vertical plate (405) is clamped on the middle of one side of the connecting vertical frame (403); The bottom of both sides of the central mounting vertical plate (405) are both mounted with connecting swing arms (406) by means of bolts, the bottom of the end of the connecting swing arm (406) is rotatably mounted with a depth limiting guide wheel (407) via a connecting plate, a mud scraper (408) is fixedly connected to the side of the connecting swing arm (406) at a position corresponding to the outside of the depth limiting guide wheel (407), and a sowing inner wheel (409) is rotatably connected to the inner side of the depth limiting guide wheel (407) at a position corresponding to the outside of the sowing curved pipe (324); A suppression suspension (410) is movably mounted on the end of the central mounting vertical plate (405) via a connecting bolt, a compression spring (411) is clamped between the end of the central mounting vertical plate (405) and the suppression suspension (410), suppression inclined wheels (412) are rotatably mounted on the bottom of both sides of the suppression suspension (410) via a rotating shaft, a movement speed sensor (413) is mounted on the middle of the bottom surface of the central mounting vertical plate (405) via a connecting frame, and support side wheels (414) are rotatably mounted on both ends of the bottom surface of the central mounting vertical plate (405) via a mounting frame.

9. A high-speed air-blowing precision seeder according to claim 8, characterized in that: The two ends of the limit spring (404) are respectively clamped with the installation bent frame (401) and the connecting vertical frame (403), the installation bent frame (401) and the connecting vertical frame (403) can be displaced in the vertical direction, and the central installation vertical plate (405) and the seed storage box (311) are connected via the installation frame; The side surface of the scraper blade (408) is tightly slidably fitted with the outer side of the depth-limiting guide wheel (407), and the end of the compression spring (411) is mutually clamped with the suppression suspension (410).

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