Vegetable air suction compensation type precision seeder

Abstract

This invention discloses a vegetable air-suction compensated precision seeder. A first seeding disc surrounds a second seeding disc radially outside the disc, and the two discs rotate in opposite directions. When the adsorption area on the first seeding disc adsorbs seeds, the seeds adsorbed in that area push a second remover, causing the second remover to pivot to a first position where it does not contact the seeds adsorbed on the second seeding disc. When the adsorption area on the first seeding disc is not adsorbed, the second remover returns from the first position to a second position, where it removes the seeds adsorbed on the second seeding disc as the second seeding disc rotates. This allows the second seeding disc to replenish seeds when there are missed seeds in the first seeding disc, preventing missed sowing.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a vegetable air-suction compensation precision seeder. Background Technology

[0002] With the advancement of agricultural modernization, traditional single-crop planting models can no longer meet the demands of modern agricultural production. Especially given the increasing scarcity of land resources, improving land use efficiency has become a major challenge for agricultural research and production. Therefore, the wheat-stubble intercropping technique, which involves planting vegetables immediately after wheat harvest, can effectively improve land use efficiency, prevent land idleness, increase the multiple cropping index, and raise farmers' incomes. Simultaneously, this planting model can break the transmission chain of pests and diseases, reduce reliance on chemical agriculture, and enhance the safety and environmental friendliness of agricultural products.

[0003] Vegetable planting is typically done using vegetable planters, with air-suction planters currently being the mainstream type on the market. Their working principle involves using an air compressor or similar device to pump air into the seed metering unit. The pressure difference between the inside and outside of the unit separates the seeds from the seed pile, causing the suction holes to pick up the seeds. Once the pressure difference disappears, the seeds fall. This type of machine causes minimal damage to the seeds, does not affect the germination rate, and can even recycle excess seeds. Different crops have matching seed metering discs, and these discs can ensure a high seeding success rate even when operating at high speeds.

[0004] However, current air-suction vegetable planters on the market often have the problem of missed planting. To solve this problem, a detection method is usually used to identify missed plantings and then replant them. This is time-consuming, labor-intensive, and costly. Therefore, developing a vegetable planter that can avoid missed plantings is an important research topic for technicians. Summary of the Invention

[0005] The purpose of this invention is to solve the technical problem of missed seeding in existing air-suction vegetable seeding systems by adopting a simple and convenient structure.

[0006] To address the above problems, this invention provides a vegetable air-suction compensated precision seeder, comprising a frame and a seeding assembly, wherein the seeding assembly is mounted on the frame, and the seeding assembly includes:

[0007] The shell has a first seed inlet, a second seed inlet and a seed outlet, and its interior has a first negative pressure chamber and a second negative pressure chamber;

[0008] A seeding tray is housed within the housing. The seeding tray includes a first seeding tray and a second seeding tray. The first seeding tray surrounds the radial outer side of the second seeding tray. The first negative pressure chamber is used to draw in seeds through the first seed inlet and adsorb them onto the first seeding tray. The second negative pressure chamber is used to draw in seeds through the second seed inlet and adsorb them onto the second seeding tray.

[0009] The motor is used to drive the first seeding disc to rotate around a first rotation direction, and to drive the second seeding disc to rotate around a second rotation direction opposite to the first rotation direction;

[0010] The first and second detents are housed within the housing; wherein...

[0011] The first seeding tray has an adsorption area, and the first remover is fixedly installed on the housing for removing seeds adsorbed on the adsorption area when the first seeding tray rotates;

[0012] The second remover is pivotally mounted on the housing, and when the first seeding disc rotates, the seeds adsorbed in the adsorption zone pivot against it to a first position; and,

[0013] When the adsorption zone does not adsorb the seeds, the second remover pivots from the first position to the second position to remove the seeds adsorbed on the second seeding tray as the second seeding tray rotates; after the seeds are removed, they flow out of the shell through the seed outlet.

[0014] Optionally, the second remover includes a fork and a force-applying part, the force-applying part being fixedly connected to the end of the fork; when the adsorption area does not adsorb seeds, the fork pivots to the second position under the action of the force-applying part.

[0015] Optionally, the housing includes a front cover, a middle cover, and a rear cover, with the seeding tray located between the front cover and the middle cover; wherein, a cavity is formed between the front cover and the seeding tray; a first negative pressure cavity is formed between the middle cover and the rear cover, and the first negative pressure cavity is directly opposite the first seeding tray; a second negative pressure cavity is formed between the second seeding tray and the middle cover, and the second negative pressure cavity is directly opposite the second seeding tray.

[0016] Optionally, the front cover includes a cover body, a first seed inlet tube, and a second seed inlet tube. The cover body includes a first guide portion and a second guide portion. The first seed inlet connects to the first seed inlet tube and the cavity; the second seed inlet connects to the second seed inlet tube and the cavity; and...

[0017] The front cover also includes a retraction section and a connecting section, the connecting section being connected to the retraction section and the first lead.

[0018] The conduit is connected, and the recovery section is used to recover the seeds in the cavity and return them to the first guide section through the connecting section.

[0019] Optionally, the seeding assembly further includes a fan and an air pipe. One end of the fan is connected to the air pipe, and the other end of the air pipe is connected to the first negative pressure chamber and the second negative pressure chamber. The fan generates negative pressure in the first negative pressure chamber and the second negative pressure chamber through the air pipe.

[0020] Optionally, the seeding assembly further includes an adjustment component, which connects the seeding assembly and the frame and is used to adjust the position of the seeding assembly in the vertical direction.

[0021] Optionally, the vegetable air-suction compensated precision seeder also includes a furrowing component and a soil-breaking and stubble-removing component installed on the frame. The soil-breaking and stubble-removing component includes a rotary tillage component. The furrowing component is installed in front of the rotary tillage component and is on the same straight line as the rotary tillage component in the front-back direction.

[0022] Optionally, the grooving assembly includes a slide rail and a cutting edge mounted on the slide rail, the slide rail being mounted on the frame for adjusting the position of the cutting edge in the vertical direction; the grooving assembly further includes an anti-winding device, the anti-winding device being circumferentially mounted on the slide rail and rotatable about the longitudinal axis of the slide rail; and / or,

[0023] The soil breaking and stubble purging assembly also includes a gear reducer, a sprocket assembly, and a rotating shaft. The rotary tillage assembly includes multiple blades circumferentially mounted on the rotating shaft. The gear reducer drives the sprocket assembly to rotate the rotating shaft, which in turn drives the blades to rotate.

[0024] Optionally, the vegetable air-suction compensated precision seeder also includes a ground wheel assembly, which is mounted on the frame in front of the seeding assembly. The ground wheel assembly is equipped with a stubble cleaner, and the position of the ground wheel assembly in the vertical direction is adjustable.

[0025] Optionally, the vegetable air-suction compensation precision seeder also includes a drip irrigation belt support assembly, which is installed on the frame behind the seeding assembly. The drip irrigation belt support assembly includes a roller and a drip irrigation belt pressing wheel. The drip irrigation belt pressing wheel is installed in front of the roller and forms a gap with the roller. At least one elastic element is provided in the gap.

[0026] In a vegetable air-suction compensation precision seeder of the present invention, the first seeding disc surrounds the radially outer side of the second seeding disc, and the two rotate in opposite directions. When the adsorption area on the first seeding disc adsorbs seeds, the seeds adsorbed in the adsorption area push the second remover to pivot to a first position where it does not contact the seeds adsorbed on the second seeding disc. When the adsorption area on the first seeding disc does not adsorb seeds, the second remover returns from the first position to a second position, where it removes the seeds adsorbed on the second seeding disc as the second seeding disc rotates. This allows the second seeding disc to replenish seeds when there are missed seeds adsorbed in the first seeding disc, preventing missed sowing. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of a vegetable air-suction compensation precision seeder according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the main structure of a vegetable air-suction compensation precision seeder according to an embodiment of the present invention;

[0029] Figure 3 yes Figure 1 A magnified schematic diagram of a portion of region A in the middle;

[0030] Figure 4 This is a three-dimensional structural schematic diagram of the seeding component in one embodiment of the present invention;

[0031] Figure 5 This is a cross-sectional view of the seeding component in one embodiment of the present invention;

[0032] Figure 6 This is a partial structural schematic diagram of the seeding component in one embodiment of the present invention;

[0033] Figure 7 This is a three-dimensional structural diagram of the front cover of the seeding component in one embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the front cover of the seeding component in one embodiment of the present invention;

[0035] Figure 9 This is a three-dimensional structural diagram of a drip irrigation tape support assembly mounted on a frame according to an embodiment of the present invention.

[0036] Figure Labels

[0037] 1-Rack;

[0038] 2-Trenching assembly; 21-Suspension bracket; 22-Slide rail;

[0039] 23 - Blade; 24 - Anti-winding device;

[0040] 3-Soil crushing and stubble removal components;

[0041] 31-Gear reducer; 32-Connecting rod; 33-Sprocket assembly;

[0042] 34 - Rotation axis;

[0043] 35-Rotary tillage assembly; 351-Blade; 36-Hydraulic device;

[0044] 4-Seedling assembly; 41-Shell; 401-Front cover;

[0045] 4011 - Cover; 4011A - Main tray filling area; 4011B - Seed cleaning area;

[0046] 4011C - Seeding area of ​​the compensation tray; 4011D - Seeding area; 40111 - First guiding section;

[0047] 40112 - Second guiding section; 40113 - Recycling section; 40114 - Connecting section;

[0048] 4012 - First seed inlet tube; 4013 - Second seed inlet tube; 401A - First seed inlet;

[0049] 401B - Second seed inlet; 402 - Main shell; 403 - Middle cover;

[0050] 404 - Back cover; 405 - Seed outlet;

[0051] 42-Seedling tray; 421-First seeding tray; 422-Second seeding tray;

[0052] 421A - Adsorption area; 43 - First mounting bracket; 44 - Second mounting bracket;

[0053] 45-Fan; 46-Air pipe; 47-Pulley assembly;

[0054] 48-Motor; 49-Drive spindle; 410-Main synchronous belt pulley;

[0055] 411-Driven synchronous belt pulley; 412-Driving gear; 413-Driven gear;

[0056] 414 - First derailleur; 415 - Second derailleur; 4151 - Derailleur fork;

[0057] 4152-Force application unit; 416-Third remover; 417-Adjusting assembly; 4171-Sowing support frame; 4172-First adjusting rod; 418-Double disc furrow opener;

[0058] 4A - Cavity; 4B - First negative pressure chamber; 4C - Second negative pressure chamber;

[0059] 5-Ground wheel assembly; 51-Ground wheel mounting bracket; 52-Stubble cleaner;

[0060] 53 - Second adjusting rod;

[0061] 6-Drip tape support assembly; 61-Roller; 62-Drip tape pulley block;

[0062] 63-Drip irrigation belt pulley; 64-Drip irrigation belt shaft; 65-Crank rod;

[0063] 66-Brake pawl; 67-Ratchet; 68-Sleeve;

[0064] 69-Drip irrigation tape tray. Detailed Implementation

[0065] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the vegetable air-suction compensation precision seeder proposed in this invention. The advantages and features of the invention will become clearer from the following description. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, intended only to facilitate and clarify the illustration of the embodiments of the invention. Furthermore, the structures shown in the drawings are often part of the actual structures. In particular, different proportions may be used in different drawings to emphasize different aspects.

[0066] Traditional wheat stubble replanting techniques involve multiple tillages and turnings of the land after wheat harvest, which leads to soil structure damage and decreased fertility, reducing the timeliness of vegetable planting after wheat harvest. Existing vegetable planters use full rotary tillage on hard soils, resulting in slow operation, increased soil disturbance, reduced soil stability, and negatively impacting crop growth. Therefore, this embodiment provides a vegetable air-suction compensated precision planter. It uses a furrowing component for initial furrowing, followed by a soil-breaking and stubble-removing component to further break up and remove stubble in the furrows after furrowing. This reduces soil disturbance and improves the timeliness of post-wheat vegetable replanting. In other words, the vegetable air-suction compensated precision planter provided in this embodiment is further developed into a no-till vegetable replanting air-suction compensated precision planter for wheat stubble.

[0067] Furthermore, for the sake of simplicity and clarity in describing the vegetable air-suction compensation precision seeder of the present invention, the forward direction of the vegetable air-suction compensation precision seeder during operation is defined as the front, the direction opposite to the front is defined as the rear, the operator stands facing forward, the right hand direction is defined as the right, the left hand direction is defined as the left, and the vertical direction is defined as the up-down direction. The vegetable air-suction compensation precision seeder of the present invention will be described below with reference to the accompanying drawings.

[0068] like Figure 1 and Figure 2 As shown, the vegetable air-suction compensated precision seeder of the present invention includes a frame 1, with a furrowing component 2 installed at the front end of the frame 1 for preliminary furrowing of the land. A soil-breaking and stubble-removing component 3 is installed on the frame 1 behind the furrowing component 2 to further break up and remove stubble from the soil in the furrow after furrowing, thereby reducing soil disturbance and improving the timeliness of post-wheat vegetable replanting.

[0069] Continue to participate Figure 1 and Figure 2 As shown, a sowing component 4 is installed on the frame 1 behind the soil-crushing and stubble-removing component 3. The sowing component 4 is used to sow seeds in the furrows opened by the furrowing component 2 and after the soil has been crushed by the soil-crushing and stubble-removing component 3. A ground wheel component 5 is set between the soil-crushing and stubble-removing component 3 and the sowing component 4. Finally, a drip irrigation tape support component 6 is installed at the rear of the frame 1. The drip irrigation tape support component 6 is used to support the drip irrigation tape so that the irrigation operation can be completed after sowing.

[0070] Specifically, refer to Figure 1 and Figure 2 and combined Figure 3 As shown, the trenching assembly 2 includes a suspension bracket 21 mounted on the frame 1, a slide rail 22 mounted on the suspension bracket 21, and a cutting edge 23 mounted on the slide rail 22. The slide rail 22 is bolted to the frame 1 to adjust the position of the cutting edge 23 in the vertical direction. When the trench to be trenched is relatively deep, the cutting edge 23 can be adjusted downwards, and when the trench to be trenched is relatively shallow, the cutting edge 23 can be adjusted upwards.

[0071] Furthermore, during ditching, plants often become entangled on the ditching component 2. For example, when ditching land after wheat planting, wheat stubble or straw often gets tangled on the ditching component 2, preventing it from ditching. To avoid this problem, in this embodiment, the ditching component 2 also includes an anti-tangling device 24. The anti-tangling device 24 is mounted on the slide rail 22 via bearings and bolts and can rotate around the longitudinal axis of the slide rail 22. In this way, the wheat stubble or straw will be thrown off the ditching component 24 by the anti-tangling device 24 in the direction of rotation, thus the wheat stubble or straw will be thrown to the side of the ditching component 2 instead of becoming entangled on it.

[0072] Continue to participate Figure 1 and Figure 2 As shown, the soil-breaking and stubble-removing assembly 3 of this embodiment includes a power transmission shaft, a gear reducer 31, a connecting rod 32, a sprocket assembly 33, a rotating shaft 34, and a rotary tillage assembly 35 mounted on the rotating shaft 34. The ditching assembly 2 is located on the same straight line as the rotary tillage assembly 35 in the front-to-back direction. Furthermore, the rotary tillage assembly 35 includes a plurality of blades 351 circumferentially mounted on the rotating shaft 34.

[0073] In this embodiment, the power structure of the tractor drives the power transmission shaft to drive the gear reducer 31. The gear reducer 31 drives the rotary shaft 34 to rotate through the connecting rod 32 and the sprocket assembly 33, so as to drive the blade 351 mounted on the rotary shaft 34 to rotate. The soil is broken and stubble is eliminated by the rotation of the blade 351. In addition, the soil breaking and stubble eliminating assembly 3 further includes a hydraulic device 36, and the hydraulic device 36 is used to adjust the angle of the rotary tillage assembly 35 relative to the frame 1.

[0074] Further, continue to refer to Figure 1 and Figure 2 and in combination with Figure 3 as shown, in this embodiment, the ditching assembly 2 and the rotary tillage assembly 35 are each at least one. Preferably, the ditching assembly 2 and the rotary tillage assembly 35 each include at least two or more. In this embodiment, the ditching assembly 2 and the rotary tillage assembly 35 each include four, so that four grooves for sowing can be opened at one time. In addition, in an optional embodiment, the ditching assembly 2 and the rotary tillage assembly 35 each include six, eight, etc., specifically subject to actual requirements. And the distance between adjacent ditching assemblies 2 and rotary tillage assemblies 35 is determined according to the density of the vegetables to be planted, and no specific limitation is made here.

[0075] Refer to Figure 4 and Figure 5 and in combination with Figure 6 as shown, the sowing assembly 4 of this embodiment includes a housing 41. The housing 41 includes a front cover 401, a main housing 402, a middle cover 403 and a rear cover 404. The front cover 401 and the rear cover 404 are fixedly installed on the main housing 402 by screws. The sowing assembly 4 further includes a motor 48, a sowing tray 42 housed in the housing 41, a first remover 414 and a second remover 415.

[0076] In combination with Figure 7As shown, the housing 41 has a first seed inlet 401A, a second seed inlet 401B, and a seed outlet 405. In this embodiment, both the first seed inlet 401A and the second seed inlet 401B are located on the front cover 401. Furthermore, the housing 41 has a first negative pressure chamber 4B and a second negative pressure chamber 4C inside. The seeding tray 42 is housed within the housing 41 between the front cover 401 and the middle cover 403, forming a cavity 4A between the front cover 401 and the seeding tray 42. The seeding tray 42 includes a first seeding tray 421 and a second seeding tray 422, with the first seeding tray 421 surrounding the radially outer side of the second seeding tray 422. A first negative pressure chamber 4B is formed between the middle cover 403 and the rear cover 404, directly opposite the first seeding tray 421. A second negative pressure chamber 4C is formed between the second seeding tray 422 and the middle cover 403, directly opposite the second seeding tray 421. In this embodiment, both the middle cover 403 and the rear cover 404 are semi-circular covers. Furthermore, the housing 41 also includes a first mounting bracket 43 and a second mounting bracket 44, which are connected by bearings. The first seeding tray 421 is mounted on the first mounting bracket 43 with screws, and the second seeding tray 422 is mounted on the second mounting bracket 44 with screws, thus allowing for easy replacement of the first seeding tray 421 and the second seeding tray 422.

[0077] Furthermore, the first negative pressure chamber 4B is used to draw in seeds through the first seed inlet 401A and adsorb them onto the first seeding tray 421, and the second negative pressure chamber 4C is used to draw in seeds through the second seed inlet 401B and adsorb them onto the second seeding tray 422. Specifically, an adsorption area 421A is formed on the first seeding tray 421. This adsorption area 421A is a through hole formed on the first seeding tray 421 and passing through the cavity 4A and the first negative pressure chamber 4B. In this embodiment, there are multiple through holes. Further, the diameter of the seed is larger than the diameter of the through hole, so the seed is adsorbed onto the through hole through the first seed inlet 401A via the first negative pressure chamber 4B. In addition, the second seeding tray 422 is designed the same as the first seeding tray 421, that is, the second seeding tray 422 is also provided with multiple through holes passing through the cavity and the second negative pressure chamber 4C, so that the seed is adsorbed onto the through hole through the second seed inlet 401B via the second negative pressure chamber 4C. In addition, both the first negative pressure chamber 4B and the second negative pressure chamber 4C are equipped with sealing structures to ensure the sealing performance of the first negative pressure chamber 4B and the second negative pressure chamber 4C.

[0078] Further, continue to participate Figure 1As shown, the seeding assembly 4 also includes a blower 45 and an air pipe 46. The blower 45 is connected to the air pipe 46, and the other end of the air pipe 46 is connected to the first negative pressure chamber 4B and the second negative pressure chamber 4C. The blower 45 generates negative pressure in the first negative pressure chamber 4B and the second negative pressure chamber 4C through the air pipe 46. In addition, the tractor's power structure drives the power transmission shaft, and the power shaft drives the blower 45 through the air pipe 46 via the pulley device 47 to generate negative pressure in the first negative pressure chamber 4B and the second negative pressure chamber 4C.

[0079] Furthermore, in this embodiment, the motor 48 is mounted on the housing 41 and drives the first seeding disc 421 to rotate around the first rotation direction, and drives the second seeding disc 422 to rotate around the second rotation direction opposite to the first rotation direction.

[0080] Specifically, refer to Figure 1 and combined Figure 5 and Figure 6 As shown, the motor 48 drives the drive shaft 49 to rotate, thereby simultaneously driving the second seeding disc 422 and the main synchronous pulley 410 to rotate around the second rotation direction. The main synchronous pulley 410 drives the driven synchronous pulley 411 to rotate along the second rotation direction. The driven synchronous pulley 411 drives the drive gear 412 to rotate around the second rotation direction. The drive gear 412 drives the driven gear 413 to rotate along the first rotation direction opposite to the second rotation direction, thereby driving the first seeding disc 421 to rotate around the first rotation direction.

[0081] In addition, combined Figure 6 As shown, in this embodiment, a plurality of first removers 414 and second removers 415 are housed within the housing 41. The first removers 414 are fixed to the front cover 401 and located within the cavity 4A. The projection of the first remover 414 on the seeding tray 42 is located within the first seeding tray 421. The second remover 415 is pivotally mounted on the front cover 401 and located within the cavity 4A. The projection of the second remover 415 on the seeding tray 42 spans across the first seeding tray 421 and the second seeding tray 422.

[0082] The first remover 414 is used to remove seeds adsorbed on the adsorption area 421A (i.e., the through hole) when the first seeding disc 421 rotates. The second remover 415 is configured to pivot to a first position when the seeds adsorbed on the adsorption area 421A (i.e., the through hole) are in contact with the first seeding disc 421 as it rotates. When the adsorption area 421A is not adsorbed with seeds, the second remover 415 pivots from the first position to a second position to remove seeds adsorbed on the second seeding disc 422 as it rotates. After being removed, the seeds flow out of the housing 41 through the seed outlet 405.

[0083] In this embodiment, the first seeding disc 421 surrounds the second seeding disc 422 radially outside, and the two rotate in opposite directions. When the adsorption area 421A on the first seeding disc 421 adsorbs seeds, the seeds adsorbed in the adsorption area 421A push the second remover 415 to pivot to a first position where it does not contact the seeds adsorbed on the second seeding disc 422. When the adsorption area 421A on the first seeding disc 421 does not adsorb seeds, the second remover 415 returns from the first position to a second position, where it removes the seeds adsorbed on the second seeding disc 422 as the second seeding disc 422 rotates. Thus, when there are missed seeds adsorbed in the first seeding disc 421, the second seeding disc 422 can replenish the seeds, preventing missed sowing.

[0084] Furthermore, in this embodiment, since the first seeding disc 421 and the second seeding disc 422 rotate in opposite directions, the two crops can be cross-sown, which can improve the yield and quality of the crops. Cross-sown also contributes to ecological balance and the development of sustainable agriculture.

[0085] Specifically, in this embodiment, the first seeding tray 421 is the main seeding tray, which rotates clockwise, and the second seeding tray 422 is the supplementary seeding tray, which rotates counterclockwise. When the main seeding tray rotates clockwise, the first remover 414 can scrape the seeds off the main seeding tray. When the seeds are adsorbed on the adsorption area 421A (i.e., the through hole) of the main seeding tray, the seeds on the adsorption area 421A abut against the second remover 415, causing the second remover 415 to pivot to a position where it does not contact the seeds adsorbed on the supplementary seeding tray. At this time, the second remover 415 is in the first position. When no seeds are adsorbed in the adsorption area 421A of the main seeding tray, i.e., the through hole, the second remover 415 is not pushed or pressed by the seeds. In this way, the second remover 415 will reset from the first position to the second position. In the second position, the second remover 415 is located on the rotation path of the seeds on the supplementary seeding tray and can remove the seeds from the supplementary seeding tray. In this way, when the adsorption area 421A of the main seeding tray is short of seeds, they can be replenished by the supplementary seeding tray.

[0086] Furthermore, when cross-seeding is required, seeds A can be adsorbed onto the first seeding tray 421 through the first seed inlet 401A via the first negative pressure chamber 4B, and then scraped off the seeds A from the first seeding tray 421 by the first remover 414 for sowing. When seeds A have been sown and need to be replaced with seeds B, seeds B can be adsorbed onto the second seeding tray 422 through the second seed inlet 401B via the second negative pressure chamber 4C. Since no seeds are adsorbed on the first seeding tray 421, the second remover 415 remains in the second position. In this second position, the second remover 415 scrapes off the seeds B adsorbed on the second seeding tray 422, thus achieving cross-seeding of seed group A (composed of multiple seeds A) and seed group B (composed of multiple seeds B).

[0087] In addition, in an optional embodiment, the second remover 415 can be fixed in the second position at all times, and the contact time between the second remover 415 and the seeds A adsorbed on the first seeding plate 421 and the seeds B adsorbed on the second seeding plate 422 can be controlled by controlling the rotation speed of the first seeding plate 421 and the second seeding plate 422, so that seeds A and seeds B are alternately removed from the seeding plate, thereby achieving cross-sowing of individual seeds A and seeds B.

[0088] Furthermore, the second remover 415 includes a fork 4151 and a force-applying part 4152, with the force-applying part 4152 fixedly connected to the end of the fork 4151; when the adsorption area 421A does not adsorb seeds, the fork 4151 pivots to the second position under the action of the force-applying part 4152.

[0089] In this embodiment, the force-applying part 4152 is a gravity ball, which is installed at the first end of the fork 4151. When the adsorption area 421A does not adsorb seeds, the fork 4151 pivots to the second position under the gravity of the gravity ball. Alternatively, in an optional embodiment, the force-applying part 4152 can also be a spring, with one end fixed to the front cover 401 and the other end fixedly connected to the fork 4151. When the adsorption area 421A does not adsorb seeds, the fork 4151 pivots to the second position under the gravity of the spring.

[0090] Further, continue to participate Figure 6 As shown, in this embodiment, the seeding assembly 4 also includes a third remover 416, which serves as a supplementary remover for removing seeds that have not been removed by the first remover 414 and the second remover 415.

[0091] In addition, combined Figure 8As shown, the front cover 401 consists of a main tray seed filling area 4011A, a seed cleaning area 4011B, a compensation tray seed filling area 4011C, and a seed placement area 4011D. Seeding takes place in the main tray seed filling area 4011A and the compensation tray seed filling area 4011C. After the seeds are removed, they are placed in the seed placement area 4011D, and the seeds are cleaned in the seed cleaning area 4011B. Furthermore, in conjunction with… Figure 7 As shown, the front cover 401 further includes a cover body 4011, a first seed inlet tube 4012, and a second seed inlet tube 4013, both of which are funnel-shaped. The first cover body 4011 also includes a first guide portion 40111 and a second guide portion 40112. The first seed inlet 401A connects the first seed inlet tube 4012 and the cavity 4A, and is located at the lower end of the first guide portion 40111; the second seed inlet 401B connects the second seed inlet tube 4013 and the cavity 4A, and is located at the lower end of the second guide portion 40112. Specifically, both the first guide portion 40111 and the second guide portion 40112 are semi-circular guide groove structures.

[0092] The front cover 401 also includes a recovery section 40113 and a connecting section 40114. The recovery section 40113 is located below the second guide section 40112 and has a boss-shaped structure. The recovery section 40113 has a flow groove inside. The connecting section 40114 is a guide plate mounted on the front cover 401 and at a certain angle to the front cover 401. The connecting section 40114 and the recovery section 40113 have a through hole. The connecting section 40114 communicates with the recovery section 40113 and the first guide section 40111. The recovery section 40113 is used to recover the seeds in the cavity 4A and recover the seeds to the first guide section 40111 through the connecting section 40114, thereby realizing the recovery of seeds.

[0093] Further, continue to participate Figure 1 and Figure 2 As shown, the sowing assembly 4 also includes an adjustment assembly 417, which connects the sowing assembly 4 and the frame 1 and is used to adjust the height of the sowing assembly 4 relative to the bottom of the vegetable air-suction compensated precision seeder. The adjustment assembly 417 includes a sowing support frame 4171 and a first adjustment rod 4172. The sowing support frame 4171 is connected to the frame 1, and the position of the sowing assembly 4 in the vertical direction is adjusted by rotating the first adjustment rod 4172. Furthermore, the sowing assembly 4 also includes a double-disc furrow opener 418, located below the sowing assembly 4, for creating vegetable planting furrows within the furrows.

[0094] Furthermore, the vegetable air-suction compensated precision seeder also includes a ground wheel assembly 5, which is mounted on the frame 1 in front of the seeder assembly 4. The ground wheel assembly 5 includes a ground wheel (not shown) and a stubble remover 52, both of which are mounted on a ground wheel mounting frame 51. The stubble remover 52 is used to further remove wheat stubble. In addition, the height of the ground wheel assembly 5 from the bottom of the seeder is adjustable. Specifically, the height of the ground wheel assembly 5 is adjusted by a second adjusting rod 53.

[0095] Furthermore, participants Figure 1 and combined Figure 9 As shown, the vegetable air-suction compensated precision seeder also includes a drip irrigation belt support assembly 6, which is mounted on the frame 1 behind the seeding assembly 4. The drip irrigation belt support assembly 6 includes a roller 61 and a drip irrigation belt pressing wheel 63. The drip irrigation belt pressing wheel 63 is mounted in front of the roller 61 and forms a gap between the roller 61 and the roller 61. An elastic element, made of rubber, is provided at least within the gap to increase the friction between the roller 61 and the drip irrigation belt pressing wheel 63.

[0096] Specifically, the drip irrigation tape support assembly 6 is bolted to the rear end of the frame 1, the roller 61 is fixed to the rear side of the frame 1 via a bearing seat, and the drip irrigation tape pressing wheel 63 is bolted to the front end of the roller 61. The roller 61 and the drip irrigation tape pressing wheel 63 are paired with a drip irrigation tape pulley assembly 62 to place the drip irrigation tape on the ground. Furthermore, the friction between the roller 61 and the drip irrigation tape pressing wheel 63 drives the drip irrigation tape reel 69 to rotate. The drip irrigation tape pressing wheel 63 is fixed to the drip irrigation tape pressing shaft 64 via a bearing. The drip irrigation tape pressing shaft 64 is adjustablely fixed to the frame 1 via a crank 65. The pressure between the drip irrigation tape pressing wheel 63 and the roller is controlled by a ratchet 67, a brake pawl 66, and a sleeve 68. In this embodiment, the roller not only supports the drip irrigation tape but also compacts the soil to cover the seeds.

[0097] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. In addition, different parts between embodiments can also be combined with each other, and this invention does not limit this.

[0098] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A vegetable air-assisted compensation precision seeder comprising a frame and a seeding assembly, said seeding assembly being mounted on said frame, characterized in that, The seeding component includes: The shell has a first seed inlet, a second seed inlet and a seed outlet, and its interior has a first negative pressure chamber and a second negative pressure chamber; A seeding tray is housed within the housing. The seeding tray includes a first seeding tray and a second seeding tray. The first seeding tray surrounds the radial outer side of the second seeding tray. The first negative pressure chamber is used to draw in seeds through the first seed inlet and adsorb them onto the first seeding tray. The second negative pressure chamber is used to draw in seeds through the second seed inlet and adsorb them onto the second seeding tray. The motor is used to drive the first seeding disc to rotate around a first rotation direction, and to drive the second seeding disc to rotate around a second rotation direction opposite to the first rotation direction; The first and second detents are housed within the housing; wherein... The first seeding tray has an adsorption area, and the first remover is fixedly installed on the housing for removing seeds adsorbed on the adsorption area when the first seeding tray rotates; The second seed remover is pivotally mounted on the housing. The second seed remover includes a fork and a force-applying part, the force-applying part being fixedly connected to the end of the fork. When the first seeding disc rotates, the fork is attracted to the seeds in the adsorption area and pivots to a first position. When the adsorption area does not adsorb the seeds, under the action of the force-applying part, the fork pivots from the first position to the second position to remove the seeds adsorbed on the second seeding tray when the second seeding tray rotates; after the seeds are removed, they flow out of the shell through the seed outlet.

2. The precision air seeders for vegetables according to claim 1, wherein, The housing includes a front cover, a middle cover, and a rear cover, with the seeding tray located between the front cover and the middle cover; wherein, a cavity is formed between the front cover and the seeding tray; a first negative pressure cavity is formed between the middle cover and the rear cover, and the first negative pressure cavity is directly opposite the first seeding tray; a second negative pressure cavity is formed between the second seeding tray and the middle cover, and the second negative pressure cavity is directly opposite the second seeding tray.

3. The precision air seeders for vegetables of claim 2, wherein, The front cover includes a cover body, a first seed inlet tube, and a second seed inlet tube. The cover body includes a first guide portion and a second guide portion. The first seed inlet connects to the first seed inlet tube and the cavity; the second seed inlet connects to the second seed inlet tube and the cavity; and... The front cover also includes a recycling section and a connecting section. The connecting section is connected to the recycling section and the first guide section. The recycling section is used to recycle the seeds in the cavity and return them to the first guide section through the connecting section.

4. The precision air seeders for vegetables of claim 1, wherein, The seeding assembly also includes a fan and an air pipe. One end of the fan is connected to the air pipe, and the other end of the air pipe is connected to the first negative pressure chamber and the second negative pressure chamber. The fan generates negative pressure in the first negative pressure chamber and the second negative pressure chamber through the air pipe.

5. The precision air seeders for vegetables of claim 1, wherein, The seeding assembly also includes an adjustment component, which connects the seeding assembly and the frame and is used to adjust the position of the seeding assembly in the vertical direction.

6. The precision air seeders for vegetables of claim 1, wherein, The vegetable air-suction compensated precision seeder also includes a furrowing component and a soil-breaking and stubble-removing component installed on the frame. The soil-breaking and stubble-removing component includes a rotary tillage component. The furrowing component is installed in front of the rotary tillage component and is on the same straight line as the rotary tillage component in the front-back direction.

7. The precision air seeders for vegetables as claimed in claim 6, wherein, The grooving assembly includes a slide rail and a cutting edge mounted on the slide rail. The slide rail is mounted on the frame to adjust the position of the cutting edge in the vertical direction. The grooving assembly also includes an anti-winding device, which is mounted around the slide rail and is rotatable about the longitudinal axis of the slide rail; and / or, The soil breaking and stubble purging assembly also includes a gear reducer, a sprocket assembly, and a rotating shaft. The rotary tillage assembly includes multiple blades circumferentially mounted on the rotating shaft. The gear reducer drives the sprocket assembly to rotate the rotating shaft, which in turn drives the blades to rotate.

8. The precision air seeders for vegetables of claim 1, wherein, The vegetable air suction compensated precision seeder also includes a ground wheel assembly, which is installed on the frame in front of the seeding assembly. The ground wheel assembly is equipped with a stubble cleaner, and the position of the ground wheel assembly in the vertical direction is adjustable.

9. The precision air seeders for vegetables of claim 1, wherein, The vegetable air-suction compensation precision seeder also includes a drip irrigation belt support assembly, which is installed on the frame behind the seeding assembly. The drip irrigation belt support assembly includes a roller and a drip irrigation belt pressing wheel. The drip irrigation belt pressing wheel is installed in front of the roller and forms a gap with the roller. At least one elastic element is provided in the gap.

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