High-speed air-blowing type precision seeder

Abstract

The high-speed air-blowing type precision seeder comprises a seeder transverse frame, a connecting front frame is fixedly mounted in the middle of one side of the seeder transverse frame, a mounting top plate is fixedly connected to the middle of the top end of the seeder transverse frame, and a power generation assembly is mounted at the end of one side of the mounting top plate in an embedded mode; a negative pressure fan assembly is embedded in the middle of the other side of the mounting top plate, a long air guide pipe is fixedly connected to the top of one end of the negative pressure fan assembly, and a protective top cover is clamped to the edge of the top end of the long air guide pipe. According to the corn seed conveying device, the phenomenon that corn seeds are damaged due to mechanical shearing in the conveying process is effectively prevented, it is ensured that the corn seeds can be completely planted into a field, the germination rate of the corn seeds after sowing is increased, and the use performance of a sowing machine is improved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a high-speed air-blowing precision seeder. Background Art

[0002] Seeder is a planting machine that sows crop seeds. It is used for a certain type of crop and is often named after the crop type, such as grain drill, corn hole drill, cotton drill, forage spreader, etc.

[0003] However, currently, planters often use mechanical components to transport corn when sowing. Since corn seeds are large in size and corn is broken, they cannot germinate and cannot be discovered during sowing. As a result, some seeds do not germinate after planting and need to be replanted. Summary of the invention

[0004] The present invention provides a high-speed air-blown precision seeder, which can effectively solve the problem mentioned in the above background technology that current seeders often use mechanical components for transportation when sowing corn. Since corn seeds are large in size and corn is broken, they cannot germinate and cannot be discovered during sowing. As a result, some seeds do not germinate after planting and need to be replanted.

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

[0006] The top of the seeder cross frame is provided with an air-blowing circulating screening sowing mechanism, which blows and transports the corn kernels to be sown through a high-speed circulating airflow, and separates the incomplete corn seeds by using the weight difference between the complete corn seeds and the incomplete corn seeds during the corn transportation process;

[0007] An auxiliary support adjustment mechanism is arranged on the outer side of the seeder cross frame, and the auxiliary support adjustment mechanism provides auxiliary support to each component on the seeder through a lifting and supporting swinging structure, and reduces vibration for each component on the seeder during the lifting and lowering process of each structure.

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

[0009] A mounting top plate is fixedly connected to the middle of the top of the seeder cross frame, a power generation assembly is embedded and installed at one end of the mounting top plate, a negative pressure fan assembly is embedded and installed in the middle of the other side of the mounting top plate, a long air guide tube is fixedly connected to the top of one end of the negative pressure fan assembly, a protective top cover is clamped at the top edge of the long air guide tube, and an air supply cross pipe is fixedly connected to the bottom of the negative pressure fan assembly at a position corresponding to one side of the seeder cross frame through a pipeline;

[0010] An air guide hose is evenly and equidistantly fixedly connected to the middle of one side of the air delivery transverse pipe, and an air guide oblique box is fixedly connected to the end of the air guide hose corresponding to the side position of the air delivery transverse pipe, and a bellows front box is fixedly installed on one side of the air guide oblique box, and a front feed notch is provided at a side position of the front of the bellows front box, and a seed storage box is installed at the top of the front feed notch corresponding to the top position of the bellows front box through bolts, and a sealing top cover is movably connected to the top of the seed storage box;

[0011] A limiting elastic sheet is fixedly installed at a position on one side of the front notch of the feed inside the bellows front box, and a seeding lifting plate is movably inserted at a position on one side of the limiting elastic sheet inside the bellows front box. A slag discharge bottom opening is arranged in the middle of the bottom end of the bellows front box, and a slag discharge sealing plate is rotatably installed on the top of the inner side of the slag discharge bottom opening through a rotating shaft, and a driving end box is fixedly installed at the middle position of the front face of the bellows front box;

[0012] A transfer middle plate is fixedly sleeved at the outer side of the output shaft at the middle part of one end of the driving end box corresponding to the inner position of the bellows front box, and seed guide side holes are evenly penetrated and opened on the side edges of the transfer middle plate along the circumferential direction; a bellows rear box is installed at the back position of the bellows front box by bolts, and an exhaust arc box is fixedly connected to the middle of the back side of the bellows rear box, and a seed guide inner tube is inserted and installed at a position on one side of the bottom of the inner side of the bellows front box, and a sowing connecting tube is tightly clamped at the middle of the bottom end of the seed guide inner tube, and a sowing bent tube is fixedly connected to the middle of the bottom end of the sowing connecting tube through a pipeline;

[0013] A separation soft wheel is installed at a position corresponding to the top of the seed guide inner tube inside the bellows rear box through a rotating shaft, a mounting swing seat is fixedly connected to the middle of the bottom end of the inner side of the bellows rear box, a cleaning top roller is installed at the end of the mounting swing seat at a position corresponding to the bottom of the top of the seed guide inner tube through a rotating shaft, and a combing top roller is installed at a position on one side of the bellows rear box away from the seed guide inner tube through a rotating shaft;

[0014] An adjusting wheel is rotatably installed at a side position of the outside of the front box of the bellows close to the seed storage box through a rotating shaft, an adjusting gear is fixedly sleeved on the outside of the end of the adjusting wheel at a position corresponding to the inside of the front box of the bellows, an adjusting arc plate is slidably clamped at a position on one side of the inside of the front box of the bellows corresponding to the adjusting gear, a driven arc rack is fixedly connected to the side of the adjusting arc plate at a position corresponding to the top of the adjusting gear, a connecting arc plate is movably installed on the side of the adjusting arc plate through a rotating block, and a separation cone block is rotatably installed at the end of the connecting arc plate at a position corresponding to one side of the transport middle plate.

[0015] According to the above technical solution, the negative pressure fan assembly is interconnected with the air supply transverse pipe and the air guide hose, each component inside the negative pressure fan assembly is powered by a power generation assembly, and the air supply transverse pipe and the seeder cross frame are connected via an arc bracket.

[0016] According to the above technical solution, the arc-shaped buckle at the end of the limiting elastic piece and the side slot of the seed adding lifting plate correspond to each other, the outer side of the seed adding lifting plate and the inner wall of the bellows front box are tightly slidably fitted, and the side of the seed adding lifting plate and the side of the front slot of the feed are tightly fitted.

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

[0018] According to the above technical solution, the bottom notch of the exhaust arc box is connected to the inner cavity of the bellows rear box, the top side of the seed guide inner tube is tightly slidably fitted with the side surface of the transfer middle plate, the middle part of the outer side of the separation soft wheel is in contact with the back side of the transfer middle plate, and the contact position between the separation soft wheel and the transfer middle plate will not completely cover the seed guide side hole.

[0019] According to the above technical solution, the conical top blocks on the outer sides of the cleaning top roller and the combing top roller are meshed with each other between the seed guide side holes. The conical top blocks on the outer sides of the cleaning top roller completely pass through the corresponding seed guide side holes, and the conical top blocks on the outer sides of the combing top roller are only inserted into half of the corresponding seed guide side holes.

[0020] According to the above technical solution, the driven arc-shaped rack and the adjusting gear are meshed with each other, the end of the separation cone block is tightly slidably fitted with the side position of the transfer middle plate, and the end of the separation cone block covers part of the end of the guide seed side hole.

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

[0022] A mounting bent frame is fixedly installed at an equidistant position on the outer side of the seeder horizontal frame corresponding to the bottom position of the air delivery horizontal pipe, a parallel swing frame is movably installed on one side of the mounting bent frame through a connecting bolt, a connecting vertical frame is movably installed on the end of the parallel swing frame through a connecting bolt, a limiting spring is clamped between the mounting bent frame and the connecting vertical frame, and a central mounting vertical plate is clamped in the middle of one side of the connecting vertical frame;

[0023] The bottom of both sides of the central mounting vertical plate are both installed with connecting swing arms by bolts, and the bottom of the end of the connecting swing arm is rotatably installed with a limited depth guide wheel through a connecting plate, and a scraper plate is fixedly connected to the side of the connecting swing arm corresponding to the outer position of the depth limiting guide wheel, and the inner side of the depth limiting guide wheel is rotatably connected to the sowing inner wheel corresponding to the outer position of the sowing curved pipe;

[0024] A suppression suspension is movably installed on the end of the centrally installed vertical plate through a connecting bolt, a compression spring is clamped between the end of the centrally installed vertical plate and the suppression suspension, suppression inclined wheels are rotatably installed on the bottom of both sides of the suppression suspension through a rotating shaft, a movement speed sensor is installed on the middle of the bottom surface of the centrally installed vertical plate through a connecting frame, and supporting side wheels are rotatably installed on both ends of the bottom surface of the centrally installed vertical plate through a mounting frame.

[0025] According to the above technical solution, the two ends of the limit spring are respectively connected with the installation bent frame and the connecting vertical frame, the installation bent frame and the connecting vertical frame can be displaced in the vertical direction, and the central installation vertical plate is connected to the seed storage box through the installation frame;

[0026] The side surface of the scraper blade is tightly slidably fitted with the outer side of the depth-limiting guide wheel, and the end of the compression spring is mutually clamped with the suppression suspension.

[0027] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0028] 1. An air-blowing circulating screening sowing mechanism is provided. The mutual cooperation among the components inside the air-blowing circulating screening sowing mechanism optimizes the transportation and sowing process of corn seeds. The mutual cooperation among the negative pressure fan components, the air delivery cross pipe and the air guide hose generates a continuous high-speed airflow inside the front box and the rear box of the bellows. The high-speed airflow cooperates with the transport middle plate and the components installed on its side to transport, transport and screen the corn seeds to be sown, so that corn seeds with good appearance can be planted in the field in sequence through the sowing connecting pipe and the sowing elbow pipe, which effectively improves the smoothness of sowing by the seeder. The high-speed airflow is used to flexibly transport the corn seeds, which effectively prevents the corn seeds from being damaged due to mechanical shearing during transportation, ensures that the corn seeds can be completely planted inside the field, improves the germination rate of the corn seeds after sowing, and improves the performance of the seeder.

[0029] At the same time, in the process of transporting corn seeds through the transfer middle plate, the transportation state of the corn seeds is adjusted by 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 guide side hole is adjusted by the combing top roller, and then the number of seeds on the side of the seed guide side hole is adjusted by the separation cone block to ensure that there is only one seed inside each seed guide side hole, and the ventilation volume inside the corresponding seed guide side hole can be adjusted by the separation soft wheel, so that the gravity of the complete seed is greater than the thrust it receives, and the gravity difference between the complete seed and the incomplete seed is fully utilized to screen the seeds, ensuring that the complete seeds can smoothly fall into the seed guide inner tube for planting, and the residual broken seeds inside the seed guide side hole are pushed out by the cleaning top roller to ensure the smoothness of the circulation transportation of the corn seeds;

[0030] In addition, the seed adding rate inside the seed storage box is adjusted by means of a limiting elastic sheet and a seed adding lifting plate to ensure that the seeds inside the front box of the bellows can always be kept within an appropriate quantity range, and then the position of the separation cone block is adjusted by means of an adjusting wheel and an adjusting gear to ensure that the positional relationship between the separation cone block and the seed guide side hole can reach the target position, and to ensure that only one seed is adsorbed on the side of the seed guide side hole during sowing, thereby improving the utilization rate of seeds during the planting process.

[0031] 2. An auxiliary support adjustment mechanism is provided. Through the mutual cooperation between the components inside the auxiliary support adjustment mechanism, the travel adjustment process of the seeder is optimized. Through the mutual cooperation between the parallel swing frame, the connecting vertical frame and the limit spring, the vibration amplitude of the sowing component of the seeder during the travel is reduced, so that the sowing component can smoothly rise and fall according to the topography of the field, effectively improving the working environment of the various parts inside the sowing component and prolonging the service life of the seeder. At the same time, through the mutual cooperation between the depth-limiting guide wheel and the suppressing inclined wheel, the sowing depth of corn is adjusted to ensure that the corn seeds can be planted within the appropriate depth range, and the sown corn seeds are covered and compacted by the suppressing inclined wheel, further ensuring the planting effect of the corn seeds;

[0032] At the same time, the travel speed of the seeder is monitored in real time through 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 corn seeds, thereby effectively improving the adjustability of the corn seed sowing process, and through the mutual cooperation between the compression spring and the limit spring, the overall flexibility of the planting component is effectively increased, and the stability of the seeder operation is effectively improved.

[0033] To sum up, through the mutual cooperation between the internal components of the air-blown circulating screening sowing mechanism and the auxiliary support adjustment mechanism, the transportation process and sowing process of corn seeds are optimized. The corn seeds are transported and screened by high-speed airflow, which effectively prevents the corn seeds from being damaged during transportation and sowing, and effectively prevents the damaged seeds from being planted in the field and reducing the planting density of corn. At the same time, by adjusting the internal components of the planter, the smooth operation of the corn seeds and the sowing rate are ensured, further improving the convenience of using the planter. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0035] In the attached picture:

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

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

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

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

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

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

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

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

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

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

[0046] Numbers in the figure: 1, seeder horizontal frame; 2, connected to the front frame;

[0047] 3. Air-blowing circulating screening seeding mechanism; 301. Mounting top plate; 302. Power generation assembly; 303. Negative pressure fan assembly; 304. Long air guide tube; 305. Protective top cover; 306. Air delivery horizontal pipe; 307. Air guide hose; 308. Air guide inclined box; 309. Bellows front box; 310. Feed front notch; 311. Seed storage box; 312. Sealing top cover; 313. Limiting elastic sheet; 314. Seed adding lifting plate; 315. Slag discharge bottom port; 316. Slag discharge sealing plate; 31 7. Driving end box; 318. Transfer middle plate; 319. Seed guide side hole; 320. Bellows rear box; 321. Exhaust arc box; 322. Seed guide inner tube; 323. Seeding connecting tube; 324. Seeding elbow tube; 325. Separation soft wheel; 326. Install swing seat; 327. Cleaning top roller; 328. Combing top roller; 329. Adjusting card 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. Install the bending frame; 402. Parallel swing frame; 403. Connect the vertical frame; 404. Limit spring; 405. Center installation vertical plate; 406. Connect the swing arm; 407. Depth guide wheel; 408. Scraper plate; 409. Inner sowing wheel; 410. Suppression suspension; 411. Compression spring; 412. Suppression inclined wheel; 413. Speed ​​sensor; 414. Support side wheel. DETAILED DESCRIPTION

[0049] The preferred embodiments of the present invention are described below 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: Figure 1-10 As shown, the present invention provides a technical solution, a high-speed air-blowing precision seeder, comprising a seeder cross frame 1, 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 horizontal frame 1. The air-blowing circulating screening sowing mechanism 3 blows and transports the corn kernels to be sown through a high-speed circulating airflow, and in the process of corn transportation, the weight difference between the complete corn seeds and the incomplete corn seeds is used to separate the incomplete corn seeds, so as to realize the sowing of the corn seeds;

[0052] The air-blowing circulating screening sowing mechanism 3 includes a mounting top plate 301, a power generation component 302, a negative pressure fan component 303, an air guide long pipe 304, a protective top cover 305, an air delivery horizontal pipe 306, an air guide hose 307, an air guide inclined box 308, a bellows front box 309, a feed 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 discharge bottom port 315, a slag discharge sealing plate 316, a drive Moving end box 317, transport middle plate 318, seed guide side hole 319, bellows rear box 320, exhaust arc box 321, seed guide inner tube 322, sowing connecting tube 323, sowing curved tube 324, separation soft wheel 325, installation swing seat 326, cleaning top roller 327, combing top roller 328, adjustment card wheel 329, adjustment gear 330, adjustment arc plate 331, driven arc rack 332, connection arc plate 333 and separation cone block 334;

[0053] A mounting top plate 301 is fixedly connected to the middle of the top of the seeder cross frame 1, a power generation component 302 is embedded and installed at the end of one side of the mounting top plate 301, and a negative pressure fan component 303 is embedded and installed in 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 component 303, and a protective top cover 305 is clamped on the top edge of the long air guide tube 304. An air delivery transverse pipe 306 is fixedly connected to the bottom of the negative pressure fan component 303 at a position corresponding to one side of the seeder cross frame 1 through a pipeline. The negative pressure fan component 303 is connected to the air delivery transverse pipe 306 and the air guide hose 307. Each component inside the negative pressure fan component 303 is powered by the power generation component 302, and the air delivery transverse pipe 306 and the seeder cross frame 1 are connected through an arc bracket.

[0054] An air guide hose 307 is evenly and evenly fixedly connected to the middle of one side of the air delivery transverse pipe 306, and an air guide inclined box 308 is fixedly connected to the end of the air guide hose 307 corresponding to the side position of the air delivery transverse pipe 306. A bellows front box 309 is fixedly installed on one side of the air guide inclined box 308, and a feed front notch 310 is provided at a side position of the front of the bellows front box 309. A seed storage box 311 is installed at the top of the feed front notch 310 corresponding to the top position of the bellows front box 309 through bolts, and a sealing top cover 312 is movably connected to the top of the seed storage box 311;

[0055] A limiting elastic sheet 313 is fixedly installed at a position on one side of the front notch 310 for feeding 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, and the arc-shaped buckle at the end of the limiting elastic sheet 313 and the side slot of the seeding lifting plate 314 are correspondingly buckled with each other, and the outer side of the seeding lifting plate 314 is tightly slidably fitted with the inner wall of the bellows front box 309, and the side of the seeding lifting plate 314 is tightly fitted with the side of the front notch 310 for feeding;

[0056] A slag discharge bottom opening 315 is provided in the middle of the bottom end of the bellows front box 309, a slag discharge sealing plate 316 is rotatably installed on the top of the inner side of the slag discharge bottom opening 315 through a rotating shaft, and a driving end box 317 is fixedly installed at the middle position of the front face of the bellows front box 309;

[0057] A transfer middle plate 318 is fixedly sleeved on the outer side of the output shaft at one end of the driving end box 317 at a position corresponding to the inner side of the bellows front box 309. Seed guide holes 319 are evenly penetrated through the side edge of the transfer middle plate 318 along the circumferential direction. The motor inside the driving end box 317 is powered by the power generation component 302. A material guide square groove is opened on the side of the transfer middle plate 318 at a position corresponding to one side of the seed guide hole 319.

[0058] A bellows rear box 320 is installed at the back of the bellows front box 309 by bolts, an exhaust arc box 321 is fixedly connected to the middle of the back of the bellows rear box 320, a seed guide inner tube 322 is inserted and installed at one side of the bottom of the inner side of the bellows front box 309, a sowing connecting tube 323 is tightly clamped at the middle of the bottom end of the seed guide inner tube 322, and a sowing elbow 324 is fixedly connected to the middle of the bottom end of the sowing connecting tube 323 through a pipeline;

[0059] A separation soft wheel 325 is installed at the top position of the seed guide inner tube 322 corresponding to the inside of the bellows rear box 320 through a rotating shaft, and the bottom notch of the exhaust arc box 321 is connected to the inner cavity of the bellows rear box 320. The top side of the seed guide inner tube 322 is tightly slidably fitted with the side of the transport middle plate 318, and the middle part of the outer side of the separation soft wheel 325 is in contact with the back of the transport middle plate 318. The contact position between the separation soft wheel 325 and the transport middle plate 318 will not completely cover the seed guide side hole 319;

[0060] A mounting swing seat 326 is fixedly connected to the middle of the bottom end of the inner side of the bellows rear box 320, and a cleaning top roller 327 is rotatably mounted at the bottom position of the top of the seed guide inner tube 322 at the end of the mounting swing seat 326, and a combing top roller 328 is rotatably mounted at a side position away from the seed guide inner tube 322 inside the bellows rear box 320, and 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, and 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 the corresponding seed guide side hole 319.

[0061] An adjusting card wheel 329 is rotatably installed at a side position of the outer side of the bellows front box 309 near the seed storage box 311, and an adjusting gear 330 is fixedly sleeved on the outer side of the end of the adjusting card wheel 329 corresponding to the inner position of the bellows front box 309. An adjusting arc plate 331 is slidably connected to a side position of the adjusting gear 330 in the bellows front box 309. A driven arc rack 332 is fixedly connected to the side of the adjusting arc plate 331 corresponding to the top position 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 block 334 is rotatably installed at the end of the connecting arc plate 333 corresponding to a side position of the transport middle plate 318. The driven arc rack 332 and the adjusting gear 330 are meshed with each other, and the end of the separating cone block 334 is tightly slidably fitted with the side position of the transport middle plate 318, and the end of the separating cone block 334 covers a part of the end of the seed guide side hole 319. The mutual cooperation among the components inside the circulating screening sowing mechanism 3 optimizes the transportation and sowing process of corn seeds. Through the mutual cooperation among the negative pressure fan component 303, the air delivery cross pipe 306 and the air guide hose 307, a continuous high-speed airflow is generated inside the bellows front box 309 and the bellows rear box 320, and the high-speed airflow cooperates with the transport middle plate 318 and the components installed on its side to transport, transport and screen the corn seeds to be sown, so that corn seeds with good appearance can be planted in the field in sequence through the sowing connecting pipe 323 and the sowing elbow 324, which effectively improves the smoothness of the sowing of the seeder, and the high-speed airflow is used to flexibly transport the corn seeds, which effectively prevents the corn seeds from being damaged due to mechanical shearing during transportation, ensures that the corn seeds can be completely planted inside the field, improves the germination rate of the corn seeds after sowing, and improves the performance of the seeder;

[0062] At the same time, in the process of transporting corn seeds through the transfer middle plate 318, the transportation state of the corn seeds is adjusted by the separation soft wheel 325, the cleaning top roller 327, the combing top roller 328 and the separation cone block 334, and the shape of the seeds adsorbed inside the seed guide side hole 319 is adjusted by the combing top roller 328, and then the number of seeds on the side of the seed guide side hole 319 is adjusted by the separation cone block 334 to ensure that there is only one seed inside each seed guide side hole 319, and the ventilation volume inside the corresponding seed guide side hole 319 can be adjusted by the separation soft wheel 325, so that the gravity exerted on the complete seeds is greater than the thrust exerted on them, and 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 guide inner tube 322 for planting, and the residual damaged seeds inside the seed guide side hole 319 are ejected by the cleaning top roller 327 to ensure the smoothness of the circulation transportation of the corn seeds;

[0063] The rate of adding seeds inside the seed storage box 311 is adjusted by the limiting elastic sheet 313 and the seed adding lifting plate 314 to ensure that the seeds inside the bellows front box 309 can always be kept within an appropriate quantity range, and then the position of the separation cone block 334 is adjusted by adjusting the clamping wheel 329 and the adjusting gear 330 to ensure that the positional relationship between the separation cone block 334 and the seed guide side hole 319 can reach the target position, and ensure that only one seed is adsorbed on the side of the seed guide side hole 319 during sowing, thereby improving the utilization rate of seeds during the planting process;

[0064] An auxiliary support adjustment mechanism 4 is arranged on the outer side of the seeder cross frame 1, and the auxiliary support adjustment mechanism 4 assists in supporting each component on the seeder through the lifting and supporting swinging structure, and reduces the vibration of each component on the seeder during the lifting and lowering 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 limit spring 404, a central mounting vertical plate 405, a connecting swing arm 406, a depth limiting guide wheel 407, a mud scraper 408, a sowing inner wheel 409, a suppression suspension 410, a compression spring 411, a suppression inclined wheel 412, a speed sensor 413 and a supporting side wheel 414;

[0066] A mounting bent frame 401 is fixedly installed at an equidistant position on the outer side of the seeder horizontal frame 1 corresponding to the bottom position of the air delivery horizontal pipe 306, a parallel swing frame 402 is movably installed on one side of the mounting bent frame 401 through a connecting bolt, a connecting vertical frame 403 is movably installed on the end of the parallel swing frame 402 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] The bottom of both sides of the central mounting vertical plate 405 are both installed with connecting swing arms 406 by bolts, and the bottom of the end of the connecting swing arm 406 is rotatably installed with a limited depth guide wheel 407 through a connecting plate, and a scraper plate 408 is fixedly connected to the side of the connecting swing arm 406 corresponding to the outer position of the depth guide wheel 407, and a sowing inner wheel 409 is rotatably connected to the inner side of the depth guide wheel 407 corresponding to the outer position of the sowing elbow 324;

[0068] A suppression suspension 410 is movably installed at the end of the central installation vertical plate 405 through a connecting bolt, a compression spring 411 is clamped between the end of the central installation vertical plate 405 and the suppression suspension 410, and the two ends of the limit spring 404 are clamped with the installation bent frame 401 and the connecting vertical frame 403 respectively, and 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 is connected to the seed storage box 311 through the installation frame;

[0069] The bottom of both sides of the suppression suspension 410 are rotatably installed with suppression inclined wheels 412 through a rotating shaft, the middle of the bottom surface of the central installation vertical plate 405 is installed with a speed sensor 413 through a connecting frame, and both ends of the bottom surface of the central installation vertical plate 405 are rotatably installed with supporting side wheels 414 through a mounting frame, the side of the scraper plate 408 and the outer side of the depth limiting guide wheel 407 are tightly slidably fitted, and the end of the compression spring 411 and the suppression suspension 410 are mutually engaged. The mutual cooperation between the various components inside the auxiliary support adjustment mechanism 4 optimizes the travel adjustment process of the seed drill, and the parallel swing frame 402 and the connecting vertical frame 403 are used to adjust the travel of the seed drill. The mutual cooperation between the limit spring 404 reduces the vibration amplitude of the sowing assembly of the seeder during the movement, so that the sowing assembly can smoothly rise and fall according to the topography of the field, effectively improves the working environment of the internal parts of the sowing assembly, and increases the service life of the seeder. At the same time, through the mutual cooperation between the depth-limiting guide wheel 407 and the suppressing inclined wheel 412, the sowing depth of 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 suppressing inclined wheel 412, further ensuring the planting effect of the corn seeds.

[0070] At the same time, the travel speed of the seeder is monitored in real time through the speed sensor 413, 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 corn seeds, thereby effectively improving the adjustability during the corn seed sowing process, and through the mutual cooperation between the compression spring 411 and the limit spring 404, the overall flexibility of the planting component is effectively increased, and the stability of the seeder operation is effectively improved.

[0071] Working principle and use process of the present invention: In the process of using a seeder to sow corn, the present invention needs to first be installed to the tail of the agricultural machine by connecting the front frame 2 and the components thereon, and then the agricultural machine is used to synchronously pull the seeder cross frame 1 and the components thereon. In the formal sowing stage of the seeder, the power generation component 302 installed on the side of the top plate 301 is started to continuously generate electricity to power the negative pressure fan component 303, so that the negative pressure fan component 303 sucks the external air through the long air guide tube 304 during continuous operation, and the top of the long air guide tube 304 is protected by the protective top cover 305 during the process of the long air guide tube 304 sucking the air;

[0072] Then, the negative pressure fan assembly 303 generates a continuous high-speed airflow inside the air delivery transverse pipe 306, and then the airflow inside the air delivery transverse pipe 306 is introduced into the interior of the air guide inclined box 308 through the air guide hose 307, and then the high-speed airflow is introduced into the internal cavities of the bellows front box 309 and the bellows rear box 320 through the air guide inclined box 308, and the airflow inside the bellows 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 seeds are transported to the side of the separation cone block 334, the separation soft wheel 325 can shield the seed guide side hole 319, thereby weakening the air flow intensity inside the corresponding seed guide side hole 319. At this time, the broken seeds will continue to be stuck to the inside of the seed guide side hole 319 under the action of the air flow, and the complete corn seeds inside the corresponding seed guide side hole 319 will fall into the inside of the seed guide inner tube 322, and The seeds that fall into the seed guide inner tube 322 are guided to the sowing curved tube 324 through the sowing connecting tube 323, and then the seeds are sown into the field through the sowing curved tube 324. When the transport middle plate 318 continues to rotate to the side of the cleaning top roller 327, the remaining corn seeds in the seed guide side hole 319 are pushed out by the conical top block outside the cleaning top roller 327, so as to realize the cleaning of the inside of the seed guide side hole 319, so that the transport middle plate 318 can transport a new round of corn seeds in the subsequent circulation process.

[0077] During the continuous transportation of the seeder, the seeder needs to be supported and shock-absorbed. The parallel swing frame 402 and the connecting vertical frame 403 are installed to the side of the seeder cross frame 1 by installing the curved frame 401, and the parallel swing frame 402 and the connecting vertical frame 403 are supported by the limit spring 404. When the seeder has slight ups and downs during operation, the parallel lifting between the curved frame 401 and the connecting vertical frame 403 is used to reduce the shock of the seed storage box 311 and the components thereon;

[0078] At the same time, the depth of the sowing bend pipe 324 is adjusted by connecting the depth limiting guide wheel 407 on the side of the swing arm 406, so as to adjust the sowing depth of the corn seeds, and during the rotation of the depth limiting guide wheel 407, the outer side of the depth limiting guide wheel 407 is continuously scraped by the scraper plate 408, so as to keep the surface of the depth limiting guide wheel 407 clean, and the suppression suspension 410 and the components thereon are continuously pressed down by the compression spring 411, and the soil is guided and compacted by the suppression inclined wheel 412 to complete the planting coverage of the corn seeds, and then the moving speed of the seeder is adjusted by the speed sensor 413, so as to adjust the rotation speed of the transport middle plate 318 according to the speed of the seeder, so as to adjust the sowing density of the corn seeds.

[0079] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, 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 installed in the middle of one side of the seed drill cross frame (1); An air-blowing circulating screening sowing mechanism (3) is arranged on the top of the sowing machine cross frame (1). The air-blowing circulating screening sowing mechanism (3) blows and transports the corn grains to be sown through a high-speed circulating airflow, and during the corn transportation process, the weight difference between the complete corn seeds and the incomplete corn seeds is utilized to separate the incomplete corn seeds; 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: The air-blowing circulating screening and sowing mechanism (3) comprises a mounting top plate (301); A mounting top plate (301) is fixedly connected to the middle of the top of the sowing machine cross frame (1); a power generation assembly (302) is embedded and installed at one end 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 top edge 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 sowing machine 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 (309); 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 the top of the feed front notch (310) corresponding to the top of the bellows front box (309) by bolts; 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) through 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 on the outer side of the output shaft at the middle part of one end of the driving end box (317) corresponding to the inner position of the bellows front box (309); the side edge of the transfer middle plate (318) is evenly penetrated with seed guide side holes (319) along the circumferential direction; a bellows rear box (320) is installed at the back of the bellows front box (309) by bolts; an exhaust arc box (321) is fixedly connected to the middle of the back of the bellows rear box (320); a seed guide inner tube (322) is inserted and installed at a position on one side of the bottom of the inner side of the bellows front box (309); a sowing connecting tube (323) is tightly clamped at the middle of the bottom end of the seed guide inner tube (322); and a sowing elbow tube (324) is fixedly connected to the middle of the bottom end of the sowing connecting tube (323) through a pipeline; A separation soft wheel (325) is rotatably mounted at a position corresponding to the top of the seed guide inner tube (322) inside the bellows rear box (320), a mounting swing seat (326) is fixedly connected to the middle of the inner bottom end of the bellows rear box (320), a cleaning top roller (327) is rotatably mounted at the end of the mounting swing seat (326) at a position corresponding to the top bottom of the seed guide inner tube (322), and a combing top roller (328) is rotatably mounted at a position on one side of the bellows rear box (320) away from the seed guide inner tube (322) through a rotating shaft; 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 transfer 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 supply 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 supply transverse pipe (306) and the seed drill cross frame (1) are connected via an arc 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 of the seed adding lifting plate (314) and the side 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 guiding square groove is provided on the side of the transfer middle plate (318) at a position corresponding to one side of the seed guiding 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), the top side of the seed guide inner tube (322) is tightly slidably fitted with the side surface of the transfer middle plate (318), the middle part of the outer side of the separation soft wheel (325) is in contact with the back side of the transfer middle plate (318), 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).

7. A high-speed air-blowing precision seeder according to claim 2, characterized in that: The outer conical top blocks of the cleaning top roller (327) and the combing top roller (328) are meshed with each other between the seed guide side holes (319); the outer conical top block of the cleaning top roller (327) completely passes through the corresponding seed guide side holes (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 holes (319).

8. The 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 part of the end of the guide seed side hole (319).

9. 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); A mounting 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 mounting 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 mounting bent frame (401) and the connecting vertical frame (403); and a central mounting 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 bolts, and the bottom of the end of the connecting swing arm (406) is rotatably mounted with a limited depth guide wheel (407) through a connecting plate, and a scraper plate (408) is fixedly connected to the side of the connecting swing arm (406) at a position corresponding to the outer side of the depth guide wheel (407), and a sowing inner wheel (409) is rotatably connected to the inner side of the depth guide wheel (407) at a position corresponding to the outer side 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.

10. A high-speed air-blowing precision seeder according to claim 9, characterized in that: The two ends of the limit spring (404) are respectively connected to the installation bent frame (401) and the connecting vertical frame (403), and 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 through 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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