2100results about "Broadcast seeders" patented technology

The present invention discloses a direct-seeding machine for dry paddy fields with film covering and synchronous hole seeding for rice, which includes a frame, a rotary tillage device, a fertilizing device, a drip irrigation belt laying device, a film laying device, a soil covering device, a laser film cutting device, a seeding device, and an irrigation device provided on the frame. A depth limit assembly is attached to the front end of the frame, and a tractor support is attached to the top of the frame. The frame is connected to an agricultural machine via the tractor support. 【Effect】 The present invention has multiple functions, improves the stability, accuracy, and adaptability of the machine, improves the seeding quality of direct seeding in dry paddy fields with film covering for rice, and truly realizes the cultivation of direct seeding in dry paddy fields with film covering for rice. It solves the problem of difficult water injection during the process of direct seeding with film covering and hole opening in dry paddy fields, realizes water injection into the holes at the same time of seeding, greatly improves the seedling emergence rate of direct seeding with film covering and hole opening in dry paddy fields for rice, and can obtain complete and strong seedlings that are uniform.

The invention discloses a wheat and corn triangular final singling interplanting close planting method and a seeder, the seeder comprises a traction frame, land wheels and seeding monomers, the seeding monomers perform small double-row triangular final singling mode seeding during seeding, at least two seeding monomers are arranged on the traction frame side by side through a four-bar linkage, the land wheels are connected with the traction frame through a connecting frame, and the land wheels are connected with the traction frame through a connecting frame. The land wheel is linked with a transmission through a transmission mechanism, the transmission drives the seeding monomers to synchronously rotate through a driving mechanism to realize seeding operation, and the distance between the seeding monomers is matched with a corn interplanting area reserved during wheat planting and seeding; the wheat and corn interplanting method is improved on the basis of existing wheat and corn interplanting, corn sowing is conducted in the reserved corn interplanting area in a small double-row triangular final singling sowing mode, the wheat and corn interplanting mode is optimized, the corn sowing density is increased, the interplanting land utilization rate is increased, and the yield is increased.

The invention discloses pelletized seed sowing equipment for micro soil dressing of saline-alkali soil. Comprising a rack, a furrowing blade, a press wheel, a material mixing piston pipe, a micro soil dressing storage box, a seed storage box, a first telescopic cylinder, a sliding sheet, a sliding rail, a material falling hole, a seed sticking hole, a sealing part, a seed supplementing box, a one-way valve, a main piston, an auxiliary piston, an auxiliary pipe, a second telescopic cylinder, a third telescopic cylinder, a connecting pipeline, a material outlet, a through hole, a fixing plate and a fixing support. A novel seed embedding and seed discharging structure is designed, micro soil dressing is pushed by the piston to enter the seed storage box for seed sticking, the requirement for seed characteristics is greatly reduced, and compared with a traditional air suction type seeder and a no-tillage seeder, the seeder is not limited by conditions such as the size, the shape, the density and the germination rate of seeds any more, and the seeding efficiency is greatly improved. Therefore, it is ensured that the seeds can be uniformly and moderately embedded, and the optimized embedding mode not only provides an ideal germination environment for the seeds, but also significantly improves the germination rate of the seeds.

The invention discloses a seeding robot applied to precise quantitative seeding and a control method thereof.The seeding robot comprises a walking mechanism, a ditching mechanism, a seeding mechanism and a control module, the ditching mechanism comprises a furrow opener, a lifting module and two limiting stoppers, and when the lifting module drives the furrow opener to move downwards, the limiting stoppers drive the furrow opener to move downwards; the limiting stopper abuts against the outer side of the upper half part of the first ditching assembly and the outer side of the upper half part of the second ditching assembly, so that the tail end of the furrow opener is changed from a closed state to an open state, and when the lifting module drives the furrow opener to move upwards, the tail end of the furrow opener is changed from the open state to the closed state; a seed outlet of the seeding mechanism is positioned right above the tail end of the furrow opener. According to the application, full-automatic precise-quantification seeding can be realized.

An assembly is provided to distribute flowable particulate material, and includes a conduit to which the material is delivered and to which an airstream is supplied to move the material along the conduit to a delivery downstream destination, a separator, within the conduit, to engage the airstream to concentrate the material in a concentrated portion of the airstream by separating a portion of the airstream, an output connected to the conduit downstream of the separator to receive the flowable particular material and deliver the material to the downstream destination, and an air distribution head in constant fluid communication with the separator to receive the separated portion of the air stream and also in constant fluid communication with the output to assist the delivery of the flowable particulate material by the output to the downstream destination by delivering the separated portion of the air stream to the output.

An agricultural trench depth sensing system and method includes a light source (2002), a receiver (2003) and a sensor (2004). The light source directs light downwardly toward a trench previously opened in a soil surface. The receiver is disposed at an angle relative to the light source to receive reflected light. A sensor connected to the receiver senses a pattern of the reflected light. A monitoring system in communication with the sensor, generates a data frame containing triangulated line coordinates and intensity values of the reflected light indicative of a measured depth of the trench. The generated data frame may be associated with GPS coordinates for generating spatial maps and may be used to control operating parameters. The generated data frames may also identify relative soil moisture versus trench depth, or presence of dry topsoil or residue in the trench, or to identify seeds, seed spacing and seed depth.

The invention discloses an intelligent pressing device and a seeding monomer, and relates to the technical field of seeding equipment. The intelligent pressing device comprises a pressing support, a rubber pressing wheel, an optical sensor, an image acquisition device, a controller, a pressing force adjusting system and a pressing angle adjusting system. The optical sensor is used for collecting the water content of the soil flowing back into the seed furrow, and the image collecting device is used for collecting the image of the pressed soil. According to the soil moisture content and the operation speed monitored by the optical sensor in real time, the pressing force and the pressing wheel angle are automatically adjusted, more accurate pressing intensity is applied to soil, a more suitable pressing contact area is obtained, soil adhesion is reduced, and the pressing effect required by agriculture is met. An image monitoring system is arranged to monitor the pressed soil in real time, and whether the pressing mechanism breaks down or not or whether the pressing effect is good or bad is judged.

The present invention relates to the technical field of agricultural tools, and specifically, to a furrowing planter, which comprises a frame, one end of which is provided with an armrest, the bottom of which is rotatably connected with a moving wheel, the bottom of which is provided with a furrowing mechanism, the interior of which is provided with a sowing mechanism, and the bottom of which is provided with a blocking component. The device is provided with a soil-breaking mechanism, and uses an angle adjustment component to drive two mounting plates to rotate toward the trench walls on both sides, so that the soil-breaking component contacts the trench walls. In the soil-breaking component, a motor drives a rotating cylinder to rotate, and a part of the clay on the trench wall is broken by a soil-breaking knife and a soil-breaking rod. After that, under the weight of the frame, the broken trench wall structure is no longer stable, and the clay on both sides of the trench wall collapses toward the middle of the trench and buries the seeds. The collapsed clay retains more gaps, thereby improving the air permeability of the soil at the sowing location, and also effectively avoiding the problem of soil compaction.

The invention discloses a multifunctional seeder seed supply device, and relates to the technical field of seeder seed supply. Comprising a seed supply box, a material storage box is fixedly installed on the upper end face of the seed supply box, a rotating groove is formed in the seed supply box, a discharging opening is formed in the inner bottom of the rotating groove, a discharging through pipe is fixedly communicated with the discharging opening, a feeding opening is formed in the inner top of the rotating groove, and a discharging through pipe is fixedly communicated with the feeding opening. The seed supply box is fixedly communicated with the material storage box through the feeding hole; a discharging assembly is arranged in the rotating groove, and uniform discharging of the seeds and adjustment of the distance can be achieved through the discharging assembly; a discharging assembly is arranged on the material storage box, and seeds in the material storage box evenly fall into the discharging assembly through the discharging assembly. Through cooperative use of the discharging assembly and the blanking assembly, the problems of seed blockage and non-uniform flow are effectively avoided, and the seeding spacing can be accurately controlled, so that the seeding efficiency and precision are improved.

A solid distribution system of an agricultural spreader includes a product hopper configured to contain solid particulate material, a blower, a manifold coupled to the blower and having a plurality of outlets, at least one boom arm comprising a plurality of parallel rigid tubes configured to carry the solid particulate material and air from the blower, and a plurality of hoses. The manifold is configured to split air flow from the blower into flows through each of the plurality of outlets. Each valve is in fluid communication with one of the outlets and one of the rigid tubes, and each valve individually controls flow through a respective one of the rigid tubes. Vehicles having such solid distribution systems are also disclosed.

The invention discloses a seeding device for dynamic variable rate fertilization and a variable rate fertilization seeding method thereof, and the seeding device comprises a walking mechanism on which a seeding mechanism and a fertilization mechanism are loaded; the seeding mechanism comprises a seeding wheel, and a plurality of grooves for receiving seeds are annularly and uniformly formed in the wheel surface of the seeding wheel; the fertilizing mechanism comprises a fertilizing wheel, and a plurality of grooves for receiving fertilizer are uniformly distributed in the wheel surface of the fertilizing wheel in the circumferential direction; wheel shafts of the sowing wheel and the fertilizing wheel are connected with a walking wheel rotating shaft of the walking mechanism through a transmission mechanism, when the grooves rotate to the upper side, the corresponding grooves can be filled with seeds or fertilizer falling by gravity, and when the grooves rotate to the lower side, the seeds or fertilizer in the grooves can fall by means of self weight to complete sowing; and the plurality of grooves in the fertilizing wheel can be independently dormant. According to the invention, on the premise of different seeding types and seeding densities, the fertilizing amount can be dynamically adjusted according to the land fertility distribution condition, and high-precision variable fertilization is realized.

A mobile agricultural machine includes a row unit having a furrow opener mounted to the row unit and configured to engage a surface of ground over which the mobile agricultural machine travels to open a furrow in the ground. A furrow closer is mounted to the row unit behind the furrow opener and configured to engage the surface of the ground to close the furrow. A furrow sensor system is mounted to the row unit and configured to sense characteristics relative to the furrow opened by the furrow opener and generate a sensor signal indicative of the characteristics. The mobile agricultural machine can further include a control system configured to determine a furrow quality metric corresponding to the furrow sensed by the furrow sensor system based on the sensor signal and generate an action signal to control an action of the mobile agricultural machine based on the furrow quality metric.

The invention provides a loess slope unmanned aerial vehicle ecological restoration method and system based on water-retaining agent blending, and the method comprises the steps: preparing a composite water-retaining agent from sodium polyacrylate and biochar, coating grass seeds with a double-layer coating, and mixing the composite water-retaining agent, the coated grass seeds and a fertilizer to form a mixed matrix; a bio-based binder is sown in a to-be-sown area of a wind power plant slope and a photovoltaic power station, and a pre-sown area is obtained; when the pre-sowing area is a side slope, sowing the mixed matrix in a side slope mode of an unmanned aerial vehicle self-adaptive sowing mechanism; when the pre-sowing area is the flat ground, sowing the mixed matrix in a flat ground mode of an unmanned aerial vehicle self-adaptive sowing mechanism; after the sowing of the mixed matrix is completed, the microbial agent is additionally sprayed, the stress resistance of plants is improved, and the grass seed sowing success rate is effectively improved through the water retention of the grass seeds and the sowing control of the grass seeds according to conditions, so that the ecological restoration of the wind power plant land is facilitated.

The invention relates to the technical field of slope repairing equipment, and discloses strip mine waste dump slope repairing equipment and a repairing method.The strip mine waste dump slope repairing equipment comprises a rack and a horizontal plate, one end of the horizontal plate is fixedly connected with a spray-seeding gun, the spray-seeding gun is provided with a pushing sleeve and a positioning sleeve, the pushing sleeve is provided with a turbulent flow assembly, and the positioning sleeve is fixedly connected with the rack; a supporting frame is arranged at the position, corresponding to the spray-seeding gun, of the top of the horizontal plate, supporting plates are vertically connected to the two symmetrical outer side walls of the supporting frame in a sliding mode, the upper ends of the supporting plates are matched with the positioning sleeves in a hinged mode, and inclined guide plates are arranged on the two symmetrical inner side walls of the supporting frame. When the spray-seeding gun reduces the angle to spray soil dressing on the slope near the spray-seeding gun and a guide wheel is in contact with a guide plate to drive a push sleeve, a gap at an opening of two spoilers is reduced, and the soil dressing sprayed by the spray-seeding gun is spoiled and is changed into a fan shape from a water column shape, so that the impact force on the slope is reduced, meanwhile, dispersed spraying is realized, the spraying uniformity is improved, and the service life of the spray-seeding gun is prolonged. And material waste can be reduced.

The utility model discloses an air-blowing type precision seeding device for an air-blowing type precision high-speed seeding machine, and belongs to the technical field of seeding machinery. The air-blowing precision seeder mainly comprises two air-blowing precision seeders which are connected together through a seeding device transmission connection structure, the air-blowing type precision seeder comprises a high-pressure side shell, a rotary seed disc, a low-pressure side shell, a high-pressure maintaining structure and a seed discharging structure; the high-pressure side shell and the low-pressure side shell are connected together to form an air-blowing type precision seeder shell; the seed metering structure comprises a seed metering pipe and a seed suction hole blocking body; the rotary seed disc is rotationally connected with the high-pressure side shell; the high-pressure maintaining structure and the seed suction hole blocking body are connected with the low-pressure side shell; the high-pressure maintaining structure comprises a low-pressure side shell and a low-pressure side inner shell, and the low-pressure side inner shell is rotationally connected with the low-pressure side shell; the seeding device transmission connection structure comprises a seeding device transmission shaft and a driven chain wheel or a driven gear. The device has the characteristics of high working reliability, long service life, low maintenance rate, energy conservation, consumption reduction and the like.

A row unit for a seed-planting implement includes a frame, a gauge wheel arm pivotably coupled to the frame, and a gauge wheel rotatably coupled to the gauge wheel arm. Additionally, the row unit includes a wobble bracket configured to engage the gauge wheel arm and a linkage arm coupled to the wobble bracket. Moreover, the row unit includes an actuator, a gearbox coupled to the actuator, and a threaded shaft coupled to the gearbox. In addition, the row unit includes an actuation arm having a first end and a second end opposed to the first end, with the first end forming a hook that directly couples to the linkage arm and the second end coupled to the threaded shaft such that the actuation arm transmits rotation of the threaded shaft into linear motion of the linkage arm.

The utility model discloses an air-blowing type precise high-speed seeding machine, and belongs to the technical field of seeding machinery. Comprising a seeder rack, and more than one air-blowing type precision seeder, a positive pressure generating device, a seeding box, a rotary seed disc driving device and a seed furrow opener are arranged on the seeder rack; the air-blowing type precision seeder comprises a high-pressure side shell, a rotary seed disc, a low-pressure side shell, a high-pressure maintaining structure and a seed discharging structure; the seed metering structure comprises a seed metering pipe and a seed suction hole blocking body; the rotary seed disc is rotationally connected with the high-pressure side shell, the low-pressure side shell is provided with a working pressure relief airflow discharge hole, and the high-pressure maintaining structure and the seed suction hole blocking body are connected with the low-pressure side shell; the high-pressure maintaining structure comprises a low-pressure side shell and a low-pressure side inner shell, the low-pressure side inner shell is rotationally connected with the low-pressure side shell, the seed suction hole blocking body is pressed and attached to the seed release position of the rotation track of the seed suction hole, and the seed suction device has the advantages of being high in working reliability, long in service life, low in maintenance rate, capable of saving energy, reducing consumption and the like.

The invention relates to the technical field of agriculture, and discloses an intelligent forest and grass planting and reseeding method which comprises the following steps: S1, collecting multi-modal data of vegetation, soil and weather through remote sensing of an unmanned aerial vehicle and a ground sensor, and generating a comprehensive monitoring report by using a multi-modal data fusion algorithm; s2, analyzing a vegetation health state based on the fused data, delimiting a reseeding priority region, and generating a reseeding map and path planning; s3, performing reseeding on the target area according to the planned path by adopting modular intelligent seeding equipment, and dynamically adjusting seeding parameters; and S4, regularly monitoring the reseeding area, generating a reseeding effect evaluation report, and optimizing a secondary reseeding scheme according to an evaluation result. According to the invention, multi-dimensional data such as vegetation coverage rate, health index, soil humidity, temperature, nutrient content and the like are comprehensively acquired through the multi-modal data acquisition module by using a multi-spectral camera carried by the unmanned aerial vehicle, a thermal infrared sensor and a ground sensor network.

The invention relates to a self-adaptive seeding density regulation and control seeder, which realizes optimization of seeding parameters by dynamically adjusting seeding density, seeding quantity, seeding depth and fertilization quantity, realizes annular fertilization by rotating a fertilization pipe, synchronously operates the fertilization pipe and a covering shovel, concentrates fertilizer around plant root systems, promotes development and extension of the root systems, and improves the seeding density. High-pressure gas is used for assisting seeding and fertilization, blockage is prevented, smooth flowing of seeds and fertilizer is ensured, the quantity is accurately controlled through the metering seed box and the quantitative fertilization box, resource utilization is optimized, resource waste is reduced, and the crop yield and quality are improved; through dynamic adjustment of sowing parameters, annular fertilization, an anti-blocking function and synchronous combined action of seed and fertilizer, the planting quality is improved, it is ensured that seeds are located at the most suitable soil depth, diseases are reduced, the health condition of crops is improved, the yield and quality of the crops are improved, resource waste is reduced, and the intelligent level of agricultural production is improved by integrating the measures.

The invention discloses a depth-adjustable sowing device for traditional Chinese medicine planting, and relates to the technical field of traditional Chinese medicine planting.The depth-adjustable sowing device comprises a drill planter body, driving wheels are symmetrically and rotatably connected to one side of the drill planter body, a seed box is fixedly connected to the top of the drill planter body, and a plurality of discharging pipes are fixedly connected to the side, close to the driving wheels, of the seed box at equal intervals; a mounting plate is connected in the drill seeder body in an up-and-down sliding mode, a plurality of furrow openers are fixedly connected to the bottom of the mounting plate at equal intervals, a plurality of worms on a transmission rod are driven by a servo motor to rotate, worm wheels meshed with the worms and a rotating disc are promoted to rotate synchronously, and the same amount of traditional Chinese medicine seeds are filled in a plurality of feeding bins on the rotating disc. And then the pressed block is extruded by the pressing block to enable the round opening to be aligned with the discharging pipe, so that equal-quantity and equal-distance sowing of the traditional Chinese medicine seeds can be realized, the conditions of non-uniform seed density in the groove and inconsistent plant spacing in the groove when the traditional Chinese medicine seeds are sown by using a drilling method are avoided, and the land utilization rate can be effectively improved.

The invention discloses a corn and soybean compound seeder based on a cloud technology in the technical field of agricultural seeding equipment. The corn and soybean compound seeder comprises a dragging machine, a bracket is arranged at the tail of the trailer; a plurality of seeding mechanisms are arranged on the bracket; the seeding mechanism comprises a furrow opener, a seed metering assembly and a pressing assembly; the furrow opener is used for digging a planting groove in soil; a depth adjusting assembly is arranged on the furrow opener and is used for adjusting the depth of the planting groove; the seed discharging assembly is used for sowing seeds into the planting grooves; the compacting assembly is used for compacting soil; a mass center adjusting assembly is arranged in the pressing assembly; the mass center adjusting assembly is used for adjusting the mass center position of the pressing assembly in response to operation of the depth adjusting assembly; the system further comprises an acquisition unit and a cloud platform. The acquisition unit is used for acquiring soil information. The cloud platform is used for judging the seeding depth based on the soil information and controlling the operation of the depth adjusting assembly. According to the scheme, the sowing depth and the pressing strength can be accurately adjusted, and the seed germination rate and emergence rate are improved.

An agricultural machine includes a material distribution system and a sensing system including a first sensor configured to generate an indication of a first measure of a first flow of agricultural material in a first material distribution line, a second sensor configured to generate an indication of a second measure of the first flow of the agricultural material in the first material distribution line, and a third sensor configured to generate an indication of a measure of a second flow of the agricultural material in a second material distribution line. A control system is configured to detect occurrence of an anomalous operating condition based on the measure of the second flow and at least one of the first measure of the first flow or the second measure of the first flow of the agricultural material.

An improved bulk transfer system for an agricultural seeder or planter breaks up the central fill system into two stages for supplying a plurality of agricultural products simultaneously to an array of metering pods, each pod containing a plurality of metering assemblies. Firstly, there is a continuous transfer of agricultural product from a trailing product cart to intermediate mini tanks mounted on a central frame and located adjacent the seeding drills and plurality of metering assemblies. The pressurized mini tanks receive agricultural products on demand. Secondly, agricultural products are transferred on demand from the mini tanks to each of the corresponding metering assemblies along the seeding drill. This arrangement enables redistribution of the weight of the bulk of the product farther away from the seeding drills, allowing for greater tow-behind product volumes.

A seeding system includes a first commodity tank, a second commodity tank, a first meter having a meter inlet at the outlet of the first commodity tank, a meter outlet, and a metering device between the meter inlet and the meter outlet, a second meter having a meter inlet at the outlet of the second commodity tank, a meter outlet, and a metering device between the meter inlet and the meter outlet, and a manifold arrangement having a first commodity inlet, a second commodity inlet, a first shoot having a first air inlet and a first manifold outlet and accessible to the meter outlet of the first meter and the meter outlet of the second meter, and a second shoot having a second air inlet and a second manifold outlet accessible to the meter outlet of the first meter and inaccessible to the meter outlet of the second meter.

The invention provides a seeding mechanism, a control method thereof and a seeder. The seeding mechanism comprises a suspension type leveling mechanism, a seeding depth adjusting mechanism, the seeding mechanism and a control system, the suspension type leveling mechanism detects the angle between the seeding mechanism and the ground; the seeding depth adjusting mechanism is arranged on the seeding mechanism and detects a real-time seeding depth value; the control system compares the detected angle between the seeding mechanism and the ground with a preset value, and controls the suspension type leveling mechanism to adjust the angle between the seeding mechanism and the ground according to an angle comparison result, so that the angle between the seeding mechanism and the ground is adjusted to be within a preset value range; the control system compares the real-time sowing depth value with a preset sowing depth value, and controls the sowing depth adjusting mechanism to adjust the height between the sowing mechanism and the ground according to a sowing depth value comparison result, so that the sowing depth value is within a preset value range. The seeding angle of the drill seeder can be changed according to the ground environment, so that the drill seeder is relatively parallel to the ground, the seeding depth is monitored and controlled in real time, and the seeding precision and efficiency are improved.

A distribution assembly for distributing a granular product that are to be distributed on the ground comprises, a mechanism for distributing granular product singly, a mechanism for conveying singled granular product to the ground, and a mechanism for transferring the singled granular product from the mechanism for distributing to the mechanism for conveying. The mechanism for transferring may be synchronized in terms of speed and in terms of position with the mechanism for distributing, and the mechanism for transferring may capture the granular product singly and immobilize it within the mechanism for transferring, so as to keep each granular product spaced a determined and constant distance from one another, in the mechanism for transferring and during the transfer of the granular product to the mechanism for conveying.

The invention relates to the technical field of seed sowing, in particular to a precision sowing system which comprises a moving mechanism, the moving mechanism comprises a moving chassis, a shell is arranged on the moving chassis, a sowing mechanism is arranged on the shell, a control mechanism is arranged in the shell, and the sowing mechanism comprises a fixing frame connected to the shell. A liftable fixing frame is arranged on one side of the fixing frame, a connecting rod is hinged between the fixing frame and the shell, a mounting frame is connected to one end, away from the shell, of the fixing frame, a plurality of seed-metering plates are mounted on the mounting frame, furrow openers are arranged on the seed-metering plates, and the control mechanism comprises an IMU sensor used for detecting the direction. A laser distance measuring sensor used for measuring the vertical distance between the mounting frame and the ground is arranged on the mounting frame, and a control device is arranged in the shell. Therefore, on the premise that the seeds are protected from being damaged, the number of the used seeds can be reduced, the sowing accuracy can be improved, thinning and filling of seedlings are not needed, the yield of unit area is improved, and the sowing efficiency is improved.

The utility model relates to the technical field of seeding machines, in particular to a seeding machine with a seed disc sweeping function, which is provided with a conveying component, a punching component, a seeding component and a seed feeding component, and the punching component, the seeding component and the seed feeding component are sequentially mounted on the top surface of the conveying component. The sowing component comprises a sowing assembly, a seed suction assembly, a seed disc assembly and a seed sweeping assembly, the bottom end of the sowing assembly is connected with the conveying assembly, the seed suction assembly and the seed disc assembly are both installed at the top end of the sowing assembly, the seed suction assembly is located above the seed disc assembly, and the discharging end of the seed conveying component is connected with the feeding end of the seed disc assembly; and the seed sweeping assembly is mounted on the seed disc assembly, so that peripheral seeds are swept to the notch through the seed sweeping assembly, the notch generated after the seeds in the seed disc assembly are sucked is quickly recovered, the seed suction assembly can suck sufficient seeds every time the seeds are sucked from the seed disc assembly, and normal seeding operation is ensured.

The invention provides a sowing device which comprises a feeding port, an auger, a material sowing bin, a discharging port and a material dispersing device, a material stirring rod is arranged in the material sowing bin and is driven by a motor to do circular motion, the material dispersing device comprises an evenly-distributing device, the evenly-distributing device is arranged on the material stirring rod and comprises a fixing part and a plurality of evenly-distributing plates, the fixing part is annular, and the evenly-distributing plates are arranged on the fixing part; the inner diameter shape of the uniform distribution device is matched with the outer diameter shape of the material stirring rod, and the uniform distribution device rotates along with the material stirring rod and is used for scattering the materials conveyed from the auger to the material scattering bin in the falling process so as to change the distribution condition of the materials; the sowing disc is arranged at the bottom end of the material stirring rod and rotates along with the material stirring rod, a plurality of hemispherical protrusions are arranged on the surface of the sowing disc, and the sowing disc is used for ejecting the materials falling onto the sowing disc so as to change the distribution condition of the materials on the sowing disc again and throwing the materials out to a target sowing area through centrifugal force. According to the sowing device, the motion trail of the falling materials can be changed, and the sowing uniformity is improved.