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33results about "Single grain seeders" patented technology

A dual hopper seeder

The utility model provides a kind of double bin sower, comprising: mounting bracket;Driving assembly, driving assembly is set on mounting bracket;Sowing component, sowing component is set on mounting bracket, sowing component has first sowing part and second sowing part;Sowing component is equipped with seed space, seed space is used to simultaneously transport seed to first sowing part and second sowing part, and first sowing part and second sowing part are spaced apart along the transverse direction of mounting bracket;At least part of driving assembly is located between first sowing part and second sowing part, and driving assembly is respectively drivenly connected with first sowing part and second sowing part, to drive first sowing part and second sowing part movement by driving assembly, to complete the discharge of seed;By transverse integration first sowing part and second sowing part, make double bin spacing break through the physical limit of traditional fixed frame body, eliminate row spacing deviation from the source.
Owner:QINGDAO DASHUN JINGFENG IND & TRADE CO LTD

Peanut seeder

ActiveCN224290691USeed depositing seeder partsRegular seed deposition machinesSeederAgricultural science
The utility model discloses a kind of peanut seeders, including seed tank, fixing frame, connecting frame and seeding disc main body, seed tank is set on fixing frame, fixing frame both sides are connected with seeding disc main body by connecting frame, seed tank is communicated with seeding disc main body by seed guide pipe, seeding disc main body is uniformly arranged with several seed metering duckbills, seed cleaning mechanism is set in seeding disc main body, seed cleaning mechanism is communicated with seed guide pipe, seed cleaning mechanism is movably provided with seed metering mechanism, seed metering mechanism is matched with seed metering duckbill;Adjusting mechanism is provided on seed cleaning mechanism, adjusting mechanism is matched with seed metering mechanism, for adjusting the communication area between seed metering mechanism and seed metering duckbill.
Owner:SHANGQIU ZHIHONG MASCH EQUIP CO LTD

A controllable continuous crop planting device

PendingCN122181268ASeed depositing seeder partsRegular seed deposition machines
The application relates to the technical field of seeding machines, and particularly provides a continuous crop planting equipment, which comprises a ring-shaped shell, a feeding port and a discharging port are arranged on the ring-shaped shell, a seed sowing disc and a seed supplementing disc are rotationally arranged in the ring-shaped shell, the seed supplementing disc is symmetrically and obliquely arranged with the seed sowing disc, a seed supplementing hole and a seed suction hole are one-to-one corresponding and synchronously rotate, the third cavity has the same negative pressure as the first cavity, the seed supplementing hole stably adsorbs seeds, when the seed suction hole of the seed sowing disc misses to suck due to the small size of the seeds, the seed supplementing hole is blocked by the second blocking roller when rotating to the highest position, the seeds are separated from the seed supplementing hole under the action of gravity and are adsorbed by the corresponding seed suction hole, the missing planting vacancy is effectively filled, the planting density in the field is uniform, manual seedling supplement is not needed, and the risk of the seeds being stuck in the seed suction hole can be effectively reduced.
Owner:WESTERN (CHONGQING) GEOLOGICAL TECH INNOVATION RES INST CO LTD

A precision dibbling device for corn seed production

ActiveCN224306358USeed depositing seeder partsSingle grain seedersImpellerAgricultural science
The utility model discloses a kind of precision dibber for corn seed production, belong to corn seed production technical field, a kind of precision dibber for corn seed production, including cabinet, the machine cover of bolt installation in the cabinet port part and the stepping motor of installation in the back of the cabinet, the inside of the cabinet is equipped with the transmission shaft of the power output end transmission of the stepping motor is connected, the inside of the cabinet is also equipped with the impeller of the transmission shaft transmission is connected, the bottom of the cabinet is equipped with discharge port, the front middle part of the machine cover is equipped with protective cover, the inside of the protective cover is equipped with the driving bevel gear of the transmission connection of the transmission shaft end portion, the top of the protective cover is provided with the transmission cylinder of the bottom closed structure setting, the inner chamber bottom of the transmission cylinder is fixedly connected with guide table, it not only realizes precision sowing, and seed jamming situation can not occur.
Owner:FUZHOU GOLDEN SEED CO LTD

Pressure reduction structure of positive pressure seed meter

PendingCN122162568ASeed depositing seeder partsSingle grain seedersSuction forceWindbreak
This invention discloses a pressure loss reduction structure for a positive pressure seed metering device. The space enclosed by the front and rear shells of the positive pressure seed metering device is divided into a front cavity and a rear cavity by a seed metering disc. An airtight cover and a pressure relief wheel are installed in the rear cavity. The airtight cover has a central hole, and a first sealing element is provided between its outer edge and the edge of the seed metering disc. The airtight cover can rotate with the seed metering disc, and its central hole is connected to the rear shell via a bearing. A first sealing ring and a second sealing ring are respectively provided between the inner and outer rings of the bearing and the rear shell and the airtight cover. The mounting bracket connected to the pressure relief wheel has a fan-shaped connecting part, on which an arc-shaped windbreak is fixed. In the direction of movement of the seed suction holes on the seed metering disc, the windbreak is located behind the pressure relief wheel and can block the back side of the seed suction holes within its arc length range. In this invention, a dual measure is adopted to avoid pressure loss, which can significantly reduce wind pressure loss, reduce the required positive pressure airflow pressure, and maintain the stability of the suction force of the seed suction holes.
Owner:NANJING AGRI MECHANIZATION INST MIN OF AGRI

A planter for horticultural flower growing

The application relates to the field of flower planting technology, in particular to a planting machine for horticultural flower planting, which comprises a ploughing machine, the outer wall of the ploughing machine is rotationally connected with a mounting plate, the end, away from the ploughing machine, of the mounting plate is fixedly connected with a connecting fixed plate, the upper end of the connecting fixed plate is fixedly connected with a plurality of storage barrels, the mounting plate and the storage barrels are fixedly installed with a seeding mechanism capable of uniformly sowing the seeds in the storage barrels, a plurality of fertilizing mechanisms capable of fertilizing and watering the seeds are also fixedly installed between the connecting fixed plate and the mounting plate, the end, close to the connecting fixed plate, of the mounting plate is fixedly installed with an extruding mechanism capable of extruding and combining the seeds and the fertilizer, the recovery wheel is upwardly moved, the second elastic arm is pulled through a pull rope, the pull rope drives the recovery wheel to rotate, the recovery wheel drives the guide box to rotate, the guide box can just contain one or two seeds, the seeds in the guide box fall into the first elastic arm through a guide pipe, and the amount of the seeds for each sowing can be controlled.
Owner:XIJING UNIV

Seed-metering device having multiple cavities and magnetic seed protection assembly

ActiveUS12660740B2Broadcast seedersSingle grain seedersAgricultural engineeringControl theory
A cavity-type seed-metering device with a magnetic seed protection assembly is provided, which includes a seed-metering device shell, a seeding plate and a seeding shaft. The seeding plate rotatably mounted in the seed-metering device shell through the seeding shaft. A seeding channel is formed in the seed-metering device shell. Multiple cavities are formed in the seeding plate. Seed filling orifices connected with the cavities are formed in one side of the seeding plate. Seeding outlets connected with the cavities are formed in a circumferential surface of the seeding plate. A magnetic hinge is rotatably connected with the seeding outlet. A notched magnetic ring is fixed in the seed-metering device shell. The magnetic hinge can close the seeding outlet under a magnetic force of the notched magnetic ring. A magnetic block that can attract the magnetic hinge for opening the seeding outlets is arranged in the seeding channel.
Owner:ANHUI AGRICULTURAL UNIVERSITY

A phase angle adjustable seed fertilizer heterotopic precision planting machine and method

This invention relates to the field of agricultural machinery technology, specifically disclosing a phase-angle adjustable seed-fertilizer separation precision sowing machine and method. The machine includes a machine frame, a sowing device, a fertilizing device, a furrowing device, and a phase angle adjustment device mounted on the machine frame. The phase angle adjustment device consists of an adjustable wheel and a fixed wheel coaxially arranged, wherein the adjustable wheel is connected to the drive shaft of the fertilizing device, and the fixed wheel is fixed relative to the machine frame. By manually adjusting the circumferential angle of the adjustable wheel relative to the fixed wheel, the initial phase of the fertilizing device's drive shaft can be changed, thereby precisely controlling the timing delay of the fertilizing action relative to the sowing action. This invention precisely controls the timing of fertilization and sowing through the phase angle adjustment device, combined with an adjustable spatial layout, achieving precise separation of seed and fertilizer in both time and space. This design is compact, easy to adjust, and places fertilizer in the root-dominant growth zone, significantly improving utilization.
Owner:HEBEI AGRICULTURAL UNIV. +3

Equal row and plant spacing wheat single-seed planting tool

ActiveCN224267354Uavoid clustersConvenient investigationSeed depositing seeder partsSingle grain seedersAgricultural engineeringMechanical engineering
This utility model relates to the technical field of wheat seeding tools, and discloses a single-seed seeding tool for wheat with equal row and plant spacing. It includes a horizontal plate, a second horizontal plate at the bottom of the first horizontal plate, a seeding mechanism at the top of the first horizontal plate, and a support mechanism at the rear of the second horizontal plate. The seeding mechanism includes multiple seeding tubes, the bottoms of which are fixedly connected to the top of the first horizontal plate. The bottoms of the multiple seeding tubes sequentially penetrate the tops of the first and second horizontal plates. A fixing plate is fixedly connected to the lower front part of each of the multiple seeding tubes, and a circular groove is formed on the front top of each of the fixing plates. In this utility model, pulling the pull rod drives the L-shaped rod and the pull rod in conjunction, causing the rotating plate to rotate and open the seeding cover for seeding. After releasing, the spring pulls the pull rod, causing the rotating plate to close the seeding cover, enabling small-area equal row and plant spacing seeding of wheat, avoiding clustering of several wheat plants, and facilitating the investigation and selection of superior individual plants.
Owner:MILLET RES INST OF SHANXI AGRI UNIV (MILLET RES INST OF SHANXI ACAD OF AGRI SCI)

Intelligent precision electric drive high-speed corn seeding machine

This invention relates to an intelligent precision electric-driven high-speed corn planter, comprising a main frame, a CAN gateway control module, a main seed box, a pneumatic suction directional seed metering unit, a seed vigor detection module, a defective seed removal device, a furrowing wheel assembly, and a soil covering wheel assembly. The outlet of the pneumatic suction directional seed metering unit is connected to a vertical seed metering pipe. The seed vigor detection module detects the vigor of seeds falling into the seed metering pipe, and the defective seed removal device removes unqualified seeds detected by the vigor detection module from the seed metering pipe. The furrowing wheel assembly includes a furrowing wheel body and a depth-limiting wheel. An electric push rod assembly and a lidar are mounted on the main frame. The electric push rod assembly drives the furrowing wheel assembly to rise and fall based on the terrain data of the working environment collected by the lidar. This planter simultaneously completes seed vigor detection, defective seed removal, and terrain-adaptive furrowing, overcoming the bottleneck of poor adaptability to complex working conditions in traditional equipment, and improving the level of intelligent planting and seedling emergence rate.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Seed meter, planter and control method for seed meter

PendingCN122162565ASeed depositing seeder partsSingle grain seedersSeederAgricultural science
This invention relates to the field of agricultural machinery technology, providing a seed metering device, a seeder, and a control method for the seed metering device. The seed metering device includes a mechanical execution unit comprising a seed metering device body, a seed metering disc driven by a first motor, and a seed scraper driven by a second motor. The seed metering disc is disposed within the seed metering device body, and the seed scraper is disposed on a set side of the seed metering disc for scraping seeds from the seed metering disc. An information detection unit includes a seed flow detection sensor for detecting the moment of seed descent and a speed sensor for detecting the travel speed. A control unit is electrically connected to the first motor, the second motor, the seed flow detection sensor, and the speed sensor. This seed metering device collects seed flow and travel speed signals in real time through the information detection unit. The control unit can accurately determine reseeding or missed seeding events based on this data and immediately respond by adjusting the extension amount of the seed scraper, effectively improving the uniformity and consistency of seeding.
Owner:INTELLIGENT EQUIPMENT RESEARCH CENTER BEIJING ACADEMY OF AGRICULTURE AND FORESTRY SCIENCES

Single-seed precision seed-metering device and method with miss-drop handling

PendingCN122250255ASingle grain seedersControl systemAgricultural engineering
This invention relates to the field of intelligent agricultural equipment technology, and discloses a single-seed precision seeding device and method with a function for handling missed and duplicate seeding. The single-seed precision seeding device includes a roller assembly, a guide cylinder assembly, a photoelectric assembly, and a dome positive pressure device. The dome positive pressure device built into the roller assembly can achieve uniform air pressure distribution in the air chamber. The seed suction hole of the roller assembly is provided with a contour-following variable curvature orifice, which can change the curvature of the variable curvature orifice under different air pressure conditions to facilitate single-seed suction and the application of different seed types. By combining a visual sensor and a photoelectric sensor, the former detects whether there is missed seeding before seeding, and the latter detects whether there is duplicate seeding during the seeding process. Combined with a seed removal device, a reseeding device, and a control system, the detection efficiency and single-seed operation accuracy are improved. This invention can realize single-seed precision seeding operation in the process of hybrid rice seedling tray sowing, with high monitoring accuracy, fast response speed, and the method has versatility.
Owner:JILIN UNIVERSITY

Row unit for a planter and a planter

A precision seeder for sowing seeds to obtain a predetermined number of plants per unit of length comprises a seed discharging tube (13) adapted to feed said seed by means of an excess air pressure from a seed distributing device (11) to a seed outlet (14), a seed furrow opener (15) comprising two sowing discs (15a, 15b) arranged at an angle relative to each other, and a resilient press surface (16) for pressing the seed into the soil. The press surface (16) is designed such that a direction of flow (F) of the seeds at the seed outlet (14) intersects or is substantially tangent to at least a portion of the press surface (16). The seed outlet (14) is located between the sowing discs (15a, 15b) and, as seen in the transverse direction, inside or immediately adjacent to the periphery of at least one of the sowing discs (15).
Owner:VAEDERSTAD HOLDING AB

Singulating device, agricultural implement and method of distributing granular material to ground

ActiveUS12642164B2Single grain seedersFertiliser equipmentsAgricultural scienceElectric machine
A singulating device (140) for singulating granular material comprises a base part (1401), a singulating part (1407) which is rotatable relative to the base part and which has a plurality of through-holes (14073) for receiving individual granules from said granular material with the ad of a pressure difference between opposite sides of the singulating part (1407), a closure part (1408) which is rotatable relative to the base part and which is attachable to the singulating part (1407), in order to form a closable space, such that the closure part (1408) is rotatable together with the singulating part (1407), and a motor (1409) for driving the closure part (1408) and the singulating part (1407). The singulating part (1407) is idly rotatably supported on the base part (1401). A drive shaft (14092) driven by the motor (1409) can be coupled to a driver arrangement (1408, 1413), in order to cause the driver arrangement to rotate. The singulating part (1407) is drivable by rotation of the driver arrangement (1408, 1413).
Owner:VAEDERSTAD HOLDING AB

Seed placement device

A seed placement device (24) connected to a machine (10) to transfer seed to a furrow (70) includes a housing (30) having a first opening through which seed is received and a second opening through which seed is discharged. An endless member (50) positioned within the housing (30), and a drive member (52, 54) that controls movement of the endless member (50) in cooperation with movement of the machine (10). The machine (10) operates in a seeding direction at a travel speed, and the endless member (50) discharges seed at a discharge speed and in a discharge direction. The discharge direction is approximately opposite to the seeding direction, and the discharge speed of the seed is at least 1.2 times the travel speed of the machine (10).
Owner:DEERE & CO

Row unit for a seed drill with pneumatic conveying system

ActiveDE102019201388B4Seed depositing seeder partsSingle grain seedersSeederMechanical engineering
Row unit (14) for a seed drill, the row unit (14) consisting of: a seed reservoir (28); a seed metering device including a metering unit (24) configured to rotate about an axis (A), wherein the metering unit (24) has a seed side (38) facing the seed reservoir (28), a non-seed side (40) opposite the seed side (38), and a plurality of passages (26) extending from the seed side (38) to the non-seed side (40), wherein the axis (A) is perpendicular to a surface of the seed side (38), the seed metering device operating by differential pressure between the non-seed side (40) and the seed side (38) to retain seeds on the seed side (38) and to remove them from the seed reservoir (28); a pressurized compressed air source; an air outlet fluidly coupled to the overpressure compressed air source, which is arranged on the seed side (38) to discharge an airflow in the direction of a passage (26) from the plurality of passages (26), wherein the discharged airflow has a directional component parallel to the axis (A), and a seed tube (68) which is configured to guide the seeds from the metering device (24) to a seed outlet, wherein the air outlet is configured to release the seeds from the metering device (24) into the seed tube (68).
Owner:DEERE & CO

Planting container and delivery unit for planting container

PCT designated stageWO2026120025A1Cultivating equipmentsSingle grain seeders
A planting container (2) for planting a propagule (P0) is capable of being automatically delivered by launching from an aerial or terrestrial delivery device (1) and sticking into a soil (S) to be planted when delivered. The planting container (2) has an upper part (21) forming an interior space and having a top opening (22) for receiving the propagule (P0). The planting container (2) has a lower part (21) ending in a tip (23) for sticking into the soil (S). The upper part (20) has a circumferential wall (200) defining the top opening (23), the circumferential wall (200) having first through-openings (201) allowing water (W) to flow through the upper part (20). The lower part (21) has second through-openings (211) enabling roots (P1) of the propagule (P0) to grow to an outside and enabling an exchange of water (W) with the outside, wherein the second through-openings (211) allow water (W) to enter from the outside into the lower part (21) and to leave the lower part (21) to the outside. The planting container (2) improves planting yield and allows planting automation especially in intertidal areas.
Owner:INVERTO EARTH AG

Seed Delivery System

PendingUS20260174000A1Broadcast seedersSingle grain seedersAgricultural scienceAgricultural engineering
A seed delivery system comprises first (200) and second (202) storage vessels for storing first and second materials to be provided to the ground and first (230) and second (240) distribution arrangements for delivering the first and second materials to the ground. The first material comprises seeds and the first distribution arrangement comprises a seed metering unit. A sensor arrangement (350) is used for sensing at least a seed flow rate to the ground and a second material flow rate to the ground and a controller (354) is provided for automatically controlling an air pump arrangement (210) in dependence on a desired seed delivery rate and a desired delivery rate of the second material, and using feedback from the sensor arrangement.
Owner:AGCO DO BRASIL SOLUCOES AGRI LTDA

Agricultural implement for cultivating agriculturally productive land and / or for dispensing material to be distributed

PendingEP4750312A1Liquid fertiliser regulation systemsCentrifugal wheel fertilisers
An agricultural implement (1) for cultivating agriculturally productive land and / or for dispensing material to be distributed (V), having at least one adjustable adjustment element, and having a control and / or regulating system (100) which is designed to adjust the adjustment element during operation depending on one or more process parameters. In order further to improve and / or to simplify the previous agricultural implements (1), in particular the control and / or regulating systems (100) thereof, it is provided that the control and / or regulating system (100) is assigned at least one mobile terminal (110) in the manner of a smartphone which is designed to continuously or at least intermittently detect and / or evaluate and / or regulate and / or transmit the one or more process parameters during operation.
Owner:AMAZONEN WERKE H DREYER GMBH & CO KG

An agricultural seedling culture and sowing integrated device

PendingCN122228861APlanting bedsPlanting
This application discloses an integrated agricultural seedling cultivation and sowing device, relating to the field of crop seedling technology. It includes a seedling rack and seedling pots, as well as a sowing robot. The sowing robot comprises a mobile base, a storage bin, a sowing section, and a multispectral camera. An S-shaped track is fixed on the seedling rack, and the mobile base can move autonomously along the S-shaped track, its path covering all seedling pots on the rack. A robotic arm is movably connected to the mobile base, and a lifting device is fixed to the end of the robotic arm. The storage bin contains bell pepper seeds, and the lifting device is used to raise and lower the storage bin. The sowing section includes a cutting plate and a positioning plate, and is fixed to the bottom of the storage bin. The cutting plate is used to insert into the seedling substrate to dig holes, and the positioning plate is fixed to the side of the cutting plate with bolts. This device can control the sowing depth and monitor the growth status of seedlings, thereby improving the survival rate of transplanted seedlings.
Owner:QIXIA AGRI TECH EXTENSION CENT

Method and application unit for applying seed dressing compositions, dressing application device, seed tube and seeding device

The present invention relates to a method for applying a dressing composition to falling plant propagation material (K), which includes: - detecting the free-falling plant propagation material with a first sensor; - determining a trigger time (ta) and triggering an applicator device (330) to release an aliquot (D) of the dressing composition toward a predetermined material collision zone (T); - scanning a scanning zone (A) in which the plant propagation material is free-falling within, around, or thereafter within the collision zone with a second sensor; and - determining whether the aliquot has hit the plant propagation material (K). The present invention also relates to respective application units (200), application devices (130), seeding devices (100), and seed tubes (210). The seed tube includes a second sensor mounting means for mounting a second sensor configuration (370) to cover the scanning zone (A). The present invention, in particular, enhances the accuracy, reliability, and controllability of dressing applications.
Owner:SYNGENTA CROP PROTECITON AG

A drum-type plug seeding machine

The utility model relates to the technical field of seeding machine, concretely is a kind of cylinder type plug seeding machine, including conveyer belt, two control consoles, two soil covering mechanisms, two scraping mechanisms, pit pressing mechanism and scraping mechanism, two soil covering mechanisms, two scraping mechanisms, pit pressing mechanism and scraping mechanism are all installed in the upper portion of conveyer belt, two control consoles are respectively arranged in the lower portion of conveyer belt left and right sides, the upper portion middle portion of conveyer belt is provided with the pick-and-place piece for picking and placing seed, this cylinder type plug seeding machine, the design of suction roller and air pressure switching block in pick-and-place piece can be through negative pressure suction seed, positive pressure release seed, motor two drive suction roller rotation, air pump maintains negative pressure, make seed adsorption in the outer wall of suction roller, in the position of switching for positive pressure, seed is pushed away from suction roller by air, subsequently accurately fall into plug under the action of gravity.
Owner:保定凯若特农业科技有限公司

A pneumatic multi-crop single-seed precision seed metering device with an adjustable seed bin

This invention relates to a pneumatic multi-crop precision seed metering device with an adjustable seed chamber. To address the problems of inflexible seed filling rate control and unstable seed metering performance in existing pneumatic seed metering devices when sowing crops of different particle sizes, this invention employs an adjustable seed chamber. The seed chamber is divided into communicating vessel-like sections consisting of a seed holding chamber, a flow passage, and a seed filling chamber. A seed layer adjustment plate is installed within the seed chamber. The seed layer adjustment plate includes a bolt-fixed section, an inclined guide section, a seed layer height limiting section, and a circular arc notch positioning and fitting surface. By replacing the seed layer adjustment plate with different specifications, the seed layer height in the seed filling chamber can be controlled, achieving flexible adjustment of the seed layer height. A seed unloading port at the bottom of the seed chamber allows for quick removal of excess seeds. This invention enables precise control of the seed layer height for crops of different grain sizes, effectively improving the single-seed filling rate, reducing the risk of multiple-seed adsorption and missed sowing, and significantly enhancing the seed metering accuracy and adaptability of the pneumatic multi-crop precision seed metering device.
Owner:HUAZHONG AGRI UNIV

System and method for dispensing seeds from a drum seeder assembly and conveyor

The present disclosure presents systems for dispensing seeds and related methods. Such systems include a drum seeder assembly including a dispenser having an open top end for receiving seeds and an open bottom end for dispensing seeds, a drum rotatably mounted below the dispenser, the drum configured to receive seeds through the open bottom end and to dispense the seeds as the drum rotates, and / or a conveyor for delivering seeds to the drum seeder assembly.
Owner:TAVACI TECHNOLOGIES LLC

Multifunctional seeder for rice planting

The utility model relates to rice planting technical field discloses a multifunctional seeding machine for rice planting, including the casing, the upper side of casing is equipped with the discharge chute, is equipped with the rotation groove in the inner wall of casing below the discharge chute, is equipped with the discharge hole in the inner wall of casing between rotation groove and discharge chute, the inner wall rotation is installed with the rotating roller of casing in rotation groove, the outer wall of rotating roller is equipped with multiple groups of placement groove, through the discharge chute can play the role of placing to seed, and seed can fall into the placement groove in rotating roller from the discharge hole, and the placement groove corresponds with the seeding hole, and then the seed in placement groove can be moved to the seeding hole and fall when the driving mechanism drives rotating roller to rotate, and the placement hole is equal to single seed volume, and then when rotating roller rotates, the inner wall of casing can play the role of limiting to the extra seed in placement groove, and then conveniently single seed sowing is in a position, reduces the cost, and the sowing mode is simpler.
Owner:JIANGXI GUOSUI SEED IND CO LTD

Air flow distribution and seed disturbing structure of a seed metering device

PendingCN122139529ASeed depositing seeder partsSingle grain seedersAgricultural scienceHydrology
The application discloses an air flow distribution and seed disturbing structure of a seed metering device, which is arranged on a front shell of the seed metering device, and the front shell and a seed metering disc of the seed metering device enclose a main cavity; the air flow distribution and seed disturbing structure comprises a transition air chamber, which is arranged in an axial direction of the seed metering disc and is located in a position different from the main cavity, and an axial projection profile of the transition air chamber is located in a profile range of the main cavity; the transition air chamber has an air inlet, a first air outlet which is communicated with the main cavity, and a second air outlet; a communication air chamber is communicated with the second air outlet and is communicated with the main cavity through a partition portion provided with a ventilation hole; an axial projection profile of the communication air chamber has a part which exceeds the profile range of the main cavity; and an adjusting mechanism is arranged in the transition air chamber and is used for adjusting a ventilation area of the second air outlet. The air flow distribution and seed disturbing structure of the seed metering device is characterized in that main structures are designed or integrated on the front shell of the seed metering device, and the transition air chamber, the communication air chamber and the adjusting mechanism are reasonably arranged, so that the occupied space of the air flow distribution and seed disturbing mechanism is significantly reduced, and the compactness of the seed metering device is improved.
Owner:NANJING AGRI MECHANIZATION INST MIN OF AGRI

Arrangement of a seed metering device on an agricultural machine

ActiveEP3799710B1Single grain seedersAgricultural scienceAgricultural engineering
Agricultural machine embracing at least one drilling unit (2) in turn comprising a support device (21) as well as a seed metering device (8) to distribute seeds to a drill furrow (9a) in the ground (9) across which the agricultural machine (1) moves, the drilling unit (2) being movably connected with a structural member (3) embraced by the agricultural machine and the seed metering device (8) being fixedly connected with the support device (21) of the drilling unit (2), the seed metering device (8) embracing a seed metering element (803) that, by means of a driving device, is arranged to transport seeds to a seed metering line (812), where the seed metering device (8) comprises a chamber (882) for seeds (92), which chamber (882) is arranged to be supplied with a positive pressure from a pressure-creating member (880) embraced by the agricultural machine, where the seed metering element (803) constitutes a wall limiting the chamber (882) and in which holes (804) or recesses are arranged, which holes / recesses (804) connect the chamber (882) with the surroundings, with the purpose of, by the pressure difference developed hereby, attaching and transporting seeds at said holes / recesses (804) of the seed metering element (803), wherein the seed metering line (812) has an inlet (814) in the chamber (882), with the purpose of, by said positive pressure in the chamber (882), creating an air flow for the transportation of the seeds from the chamber (882) through the seed metering line (812) to the drill furrow (9a).
Owner:VAEDERSTAD HOLDING AB