96results about How to "Sowing speed" patented technology

The invention discloses a seed metering device capable of conveying seeds forward. The seed metering device capable of conveying seeds forward comprises a gearbox, a housing, a conveyer belt, a driving wheel, a driven wheel, a seed separating plate, a bucket wheel, and a transparent hood; the housing is connected with a gearbox housing so as to form a cavity used for accommodating the conveyer belt; a plurality of dialing pieces are uniformly distributed on the external wall of the conveyer belt; the dialing pieces and the conveyer belts are designed to be a one-piece structure; the conveyer belt is provided with holes among the dialing pieces; the driving wheel and the driven wheel are arranged on the internal sides of the two ends of the conveyer belt; convex teeth matching the holes onthe conveyer belt are arranged are the external wall of the driving wheel so as to prevent falling of the conveyer belt off from the driving wheel in transmission process; a protective cover is arranged on the external part of the housing; the external side of the driving wheel is provided with the seed separating plate, the bucket wheel, and the transparent hood successively. According to the seed metering device, the soft conveyer belt is used for replacing a seed guide disc, so that seed broken rate is reduced; the conveyer belt is used for conveying seeds, seeds are conveyed to positions about 15cm away from trench digging points, seed falling points are accurate, depth is consistent, and the optimal seedling emergence states are achieved.

The invention relates to an agricultural seeding device, in particular to a suction type precision seed bunch planting device. The suction type precision seed bunch planting device mainly comprises a seed tank (26), a suction type seed sorter, a roller, a negative pressure air suction pipe (6), a speed shifting mechanism and a seed receiving and delivering device, wherein the suction type seed sorter is arranged in the roller and communicated with the negative pressure air suction pipe (6); a seed delivering box (47) is arranged between a seed outlet of the suction type seed sorter and a duck nozzle (42); a main shaft (4) of the roller is a hollow pipe; a main shaft (9) of the suction type seed sorter is arranged in the hollow pipe-shaped main shaft (4) of the roller; one end of the main shaft (9) of the suction type seed sorter is coupled to the suction type seed sorter through a bearing (8.1) and drives a seed suction disk (33), and the other end of the main shaft (9) of the suction type seed sorter passes through a sealing bearing (8) in the main shaft (4) of the roller; the main shaft (4) of the roller and the main shaft (9) of the suction type seed sorter are in speed-shifting connection through a gear or a chain or a notched belt. The suction type precision seed bunch planting device has the advantages of increasing the inner space of the roller as much as possible, increasing the height of the seed delivering box simultaneously, conveniently regulating the rotating speed ratio of the roller to the seed absorption box according to the agronomic requirements, and greatly improving the seeding speed while seeding accurately. Due to the unique transmission structure, the suction type precision seed bunch planting device is compact and steady, and the fault rate is reduced obviously under the environment of worse working condition.

The invention relates to a brush hole type plug seedling planter which is characterized by comprising a bracket, wherein a seed plate is arranged on the bracket, the seed plate is provided with a plurality of planting holes at intervals, the seed plate penetrates through a seed containing box in a sliding manner, a guide sliding rod is penetrated on the seed containing box above the seed plate in a sliding manner and is arranged in parallel with the seed plate, and two ends of the guide sliding rod are arranged on the bracket. The brush hole type plug seedling planter has the advantages of simple structure, convenience for operation, low cost, high reliability, and no damage to seeds, can meet the demands of precision drilling of one hole one seed, is suitable for dry seeds or wet seeds of crops such as cotton and the like, and has wide application prospect in the modern facility agriculture.

The invention relates to a precision pseudo-ginseng seeding machine and belongs to the field of agricultural machinery. The precision pseudo-ginseng seeding machine comprises a rack, a seed box I, a seed box II, a seed sowing device driving mechanism I, a seed sowing device transmission mechanism, a seed sowing device driving mechanism II, a ditching device, a ditching device fixing bolt, a ditching device fixing pipe, a ditching device fixing bolt, a connecting pin, a power input chain wheel, a seed sowing device, a seed sowing device fixing bolt and a seed sowing device connecting plate. The precision pseudo-ginseng seeding machine has the advantages that precise and small-amount seed sowing on pseudo-ginseng seeds is realized, and seeding speed is greatly increased; precision pseudo-ginseng seeding is used for replacing manual dibble seeding, so that pseudo-ginseng planting level is improved; agricultural mechanization of the pseudo-ginseng planting industry is realized, agricultural labour productivity can be greatly improved, labour intensity is reduced, production cost is reduced, and the quality and market competiveness of a pseudo-ginseng product are improved; and the precision pseudo-ginseng seeding machine is reasonable in structural design, good in operation quality, high in operation efficiency, reliable in operation and high in universalization degree, and agricultural requirements of the pseudo-ginseng planting industry can be completely met.

The invention relates to a front-profiling type pseudo-ginseng sower and belongs to the field of agricultural machinery. The front-profiling type pseudo-ginseng sower comprises a left rack, seeding apparatus mechanisms, set screws, secondary drive mechanisms, a hinge pin, a profiling rack, side plate connecting bolts, a right side rack, side plates I, furrow opener fixing bolts, position adjusting screws, seeding apparatus mounting brackets, a land wheel I, a land wheel shaft, UCP205 bearings, primary drive mechanisms, a land wheel II, supporting shafts I, supporting shafts II, side plates II, furrow openers, soil covering devices, fixing bolts, seeding shafts and UCP202 bearings. Small-quantity and accurate seeding of pseudo-ginseng seeds is realized, and the sowing speed is greatly improved; the plantation level of pseudo-ginseng is improved; the labor intensity is reduced, the production cost is reduced, and the quality and the market competition capacity of pseudo-ginseng products are improved. The structural design is reasonable, the operation quality is good, the operation efficiency is high, the operation is reliable, the universalization degree is high, and the agriculture requirements of the pseudo-ginseng industry is completely met.

A hybridization millet thinning-free plantation method is low in labor intensity and small in output fluctuation; the method comprises the following steps: selecting a Zhuang hybridization millet breed with strong tillering and ear bearing ability according to breed characteristics; carrying out germination tests for the selected Zhuang hybridization millet breed, and determining the germination capacity or hybridization rate of the Zhuang hybridization millet seeds; blending non-hybridization millet with the selected Zhuang hybridization millet seeds according to the real determined Zhuang hybridization millet seed germination capacity, wherein the grain sizes are basically same, thus enabling the blended seeds to have the hybridization rate of 30%; using the half-covering on-film hole spawning mode to plant the blended seeds; spraying herbicide to remove the non-hybridization millet when the millet grows to 3leaf-5leaf after seedling emergence, thus providing weeding effect.

The invention provides a naked seed water sowing method for tobacco seedling culture. The method comprises the following steps: preparing naked seed suspension liquid by adding 20 to 50ml of water into every 0.1g of tobacco naked seeds, then, sucking the naked seed suspension liquid by using a rubber head dropper, and injecting the naked seed suspension liquid into planting holes of a prepared seed tray. If the method disclosed by the invention is adopted, the rate of emergence can be guaranteed. Compared with a naked seed bunch planting method, the naked seed water sowing method has the advantages that a single-hole multiple-seedling planting hole ratio can be obviously lowered, sowing and thinning labor can be reduced, and the seed use amount is reduced. The method is suitable for tobacco seedling culture ways, such as the paper-pot seedling culture, the nutrition bag seedling culture, the tray seedling culture, the floating seedling culture and the like of tobacco breeding materials.

The invention relates to a factory needle-like suction pseudo-ginseng seeder, which belongs to the field of an agricultural machine. The needle-like suction pseudo-ginseng seeder comprises a seed metering device, a swing cylinder I, a swing cylinder seat I, a slide block seat, a slide block, a limited pillar I, a limited pillar II, a rocking bar I, a rocking bar II, a rotating shaft, a pedestal I,a pedestal II, a seed case, a protective cover I, a protective cover II, a cover plate I, a cover plate II, a walking wheel I, a walking wheel II, a walking wheel III, a walking wheel IV, a walking wheel connection shaft, a track I, a track II, a mounted bearing I, a mounted bearing II, a negative pressure machine, a motor, a gas insulation board, a sprocket wheel, a chain I, a chain II, a chainIII, an inhalation pipeline, a trench digging rack, an opening share, a seed-induction pipe, an angle iron, a slide block rod, a seed-discharging needle, a guide rail II, a swing cylinder II, and a swing cylinder seat II. The seeder realizes accurate sowing during factory pseudo-ginseng sowing work, increases sowing speed, reduces labor intensity, increases the pseudo-ginseng quality, reduces cost, has the advantages of reasonable structure and high efficiency, and can satisfy the agronomic requirement for a factory pseudo-ginseng plantation industry.

The invention discloses a multifunctional seeder, comprising a foot pedal, brackets, an under frame and a drive sprocket, which is characterized in that a seed shaft is rotationally installed between the brackets, a first driven sprocket installed on the seed shaft is connected with the drive sprocket in a meshing transmission way by a first chain, the shaft of the drive sprocket is provided with the foot pedal, the seed shaft is provided with a seed wheel, one end of the seed shaft is provided with a second driven sprocket; one end of a connection shaft rotationally connected on the bracket positioned at the upper part of the seed shaft is connected with a swaging rotating shaft by a rotor arm, a swaging plug is rotationally connected on the swaging rotating shaft at the position corresponding to a seed storage funnel; a third driven sprocket installed at the other end of the connection shaft is connected with the second driven sprocket installed on one end of the seed shaft in a meshing transmission way by a second chain; a seed storage bag is installed below the seed storage funnel, the lower part of the seed storage bag is provided with a trumpet-shaped seed sub-receiving funnel with a flexible seeding discharge pipe; the lower part of the under frame in front of the flexible seeding discharge pipe is provided with a digging knife. The multifunctional seeder is characterized by simple structure, quick seeding speed, etc.

The invention provides a sowing machine for dry land. The sowing machine comprises a traction frame, driving land wheels, a rack, roller type seeder units, a ditching depth wheel, furrow openers and covering devices, wherein the traction frame is arranged at the front end of the rack; the ditching depth wheel and the plurality of roller type seeder units are respectively arranged at the front and the back of the rack; the furrow openers and the covering devices are respectively arranged at the fronts and the backs of all the roller type seeder units in a way of one-to-one correspondence; the roller type seeder units are fixed on a transmission shaft; the transmission shaft is fixed on the rack; the two ends of the transmission shaft are respectively provided with the driving land wheel. The sowing machine for the dry land is simple in mechanical structure and convenient to use, is capable of adjusting plant spacing and accurately sowing so as to save seeds, and is rapid in sowing speed, uniform in sowing and good in sowing effect.

A drum-type mulch puncture and precision seeder under the film, comprising: two V-shaped drums with opposite ends, gears distributed on the circumference of the drums, a pair of bevel gears at the opposite ends of the two drums, fixed on the drawbar, Connect the seed introduction tube of the seed box seed metering device, the seed injection valve arranged at the lower port of the seed introduction tube, and the seed injection valve on the circumference of the drum to open the dial. Seed valve return spring. The positive effect of the invention is that the synchronous rotation of the double rollers is used to hold the mulch film, and the mulch film is stable. The gears on the drum are relatively angled, the puncture resistance is small, and the position is accurate. The seeding port does not touch the ground, will not be blocked by soil, and will not be affected by soil dryness or wetness. The tangential speed along the circumference of the drum forms a tendency for the seeds to fly horizontally and leave the seed hole. The rate of seed entry into the hole is 100%, and the accuracy of the position of the seed is not affected by the speed of the planter. Under the condition of ensuring the seeding quality, it is better than the existing one. The seeding speed of the class seeder can be increased by 2‑4 times.

The invention discloses a walnut seeding machine including a machine frame (1), a dragging connector (4) and a seeding controller (5); one end of the machine frame (1) is provided with furrow openers (2), the other end of the machine frame (1) is provided with a furrow flattening wheel (3); the seeding controller (5) includes a rotary shaft (51), a seed hopper (52) and pipeline connectors (54), the lower side of the seed hopper (52) is provided with seed leaking ports corresponding to the furrow openers (2), one end of each pipeline connector (54) is connected with the seed leaking port, and the other end of each pipeline connector (54) is connected with a seed pipeline (22); the rotary shaft (51) is mounted on the machine frame (1) through a bearing, and walnut dividing devices (510) are arranged on the rotary shaft (51) and are located in the seed leaking ports; the rotary shaft (51) is in transmission connection with the furrow flattening wheel (3) through a speed controller (6). The walnut seeding machine can automatically seed walnut and saves time and labor.

The invention provides sowing equipment with high sowing efficiency. According to the sowing equipment, sowing speed can be greatly improved, in addition, sowing evenness is good, and the quality of seedlings is greatly improved; the arrangement of a first observation window brings convenience to watch a nursery site in which bottom layer soil is laid so as to find a phenomenon that soil is not evenly laid, and therefore, the quality of the seedlings can be guaranteed; the first observation window can bring convenience for users to check sowing evenness, a sowing amount can be conveniently watched, and the equipment can be regulated in time if seedlings are not even. In addition, according to the arrangement of a camera, soil laying evenness and sowing evenness on the nursery site can be detected and recorded, and sowing quality is guaranteed so as to guarantee the quality of the seedlings.

The invention discloses an oscillating sowing machine comprising two vehicle wheels and a plurality of sowing devices arranged between the two vehicle wheels; every two adjacent sowing devices are connected via a connecting device; each sowing device comprises a mounting box body, a seed storage material box arranged on the mounting box body and a driving shaft mounted on the mounting box body; the seed storage material box is internally provided with a partition plate for dividing the seed storage material box into a material-storing box and a material-separating chamber; the partition plate is provided with a seed inlet; the material-separating chamber is provided with a seed outlet corresponding to the position of the seed inlet and provided with a sowing disc of sowing holes; an oscillating device for driving the sowing disc to oscillate is arranged between the sowing disc and the driving shaft. The oscillating sowing machine disclosed by the invention is simple in structure, low in price, low in sowing efficiency and high in sowing speed and does not block seeds during sowing.

The invention relates to the technical field of agricultural cultivation, in particular to a deep ploughing seeder for crop planting. According to the deep ploughing seeder for crop planting, a secondfixing plate is fixedly installed at the other side of a seeder body, a first fixing plate and the second fixing plate are arranged correspondingly, a soil shoveling device is installed on the firstfixing plate, and a soil covering device is installed on the second fixing plate; and a sowing device is installed at the lower side of the second fixing plate, a feeding device is installed on the machine body, a spraying device is installed on the machine body, the spraying device and the soil covering device are correspondingly arranged, and a screening device is installed at one side of the conveying device. According to the deep ploughing seeder, through mutual cooperation of the soil shoveling device and the soil covering device, soil is shoveled up through the soil shoveling device, seeds can be directly sown at the depth required by deep ploughing, nutrients are sprayed to the soil shoveled up by the soil shoveling device through the feeding device, the nutrients in the soil are improved, when the soil full of the nutrients covers the seeds, the seedling emergence speed of the seeds is increased, and the seedling raising success rate of the seeds is increased.

The invention provides a high-speed hilling disc. The high-speed hilling disc mainly comprises a movable disc, front and rear separator belts, a fixed disc group, a soil opener group, a seeding mechanism, a stirring wheel mechanism, a wobble-plate mechanism and the like, wherein the soil opener group is uniformly distributed on the circumference of the movable disc; the fixed disc group is connected with the movable disc through a flange; the stirring wheel mechanism and the seeding mechanism are arranged on the right lower part of the fixed disc group; the wobble-plate mechanism is arranged at the rear lower part of the fixed disc group; and the front and rear separator belts are arranged in the fixed disc group. According to the high-speed hilling disc, by means of the design of irregular shapes of fixed disc and fixed disc cover and cantilever assembly of the soil opener group, the linear speed of the soil opener group can be improved, the seed falling time can be reduced, and the sowing speed can be accelerated; the seeding mechanism ensures the sowing accuracy by means of the front and rear separator belts and a forced feed agitator, and seeding wheels and seeds are protected by the design of a floating protective plate; the stirring wheel mechanism ensures seeds to enter the seeding mechanism smoothly; and the wobble-plate mechanism continues the opening state of the soil opener group to ensure the sowing quality, and enables the hilling disc to rotate clockwise and counterclockwise without influencing the sowing quality, so that the operability is improved.

The invention discloses a slope protection greening device, which comprises a device body. Left and right end faces of the device body are fixedly provided with handles, anti-slip rubber rings sleevethe handles, supporting rods are rotationally arranged at four corners of the lower end face of the device body respectively, a flat plate is hinged to the lower end of each supporting rod, a torsionspring is fixedly arranged between the upper end face of each flat plate and the corresponding supporting rod, and the device body is internally provided with a storage cavity. A drilling shaft rotationally descends to dig holes in an area for planting, soil dug out is accumulated on the flat plates of the device, then vegetation seeds quantitatively fall into the holes, and after seed placement is finished, the flat plates rotate to automatically fill soil into the holes to cover the seeds. The process is automatic in operation, high speed and high efficiency in seeding are realized, and thedevice is simple, convenient to operate and suitable for different areas.

The invention discloses a tobacco seedling-raising seeder which comprises a seed distributing box and a seed storing box, wherein the box bottom of the seed distributing box is divided into three layers, the upper layer is provided with a seed storing plate, the middle layer is provided with a drawable barrier, and the lower layer is provided with a seed discharging plate; seed storing holes are distributed in the middle section of the seed storing plate, both sides of the seed storing plate are polished surfaces without holes, and the diameter of the seed storing hole meets the diameter requirements for discharging one seed; seed discharging holes corresponding to the seed storing holes of the seed storing plate are distributed in the seed discharging plate, each seed discharging hole in the bottom surface of the seed discharging plate is connected with a seed shedding pipe, and the bottom end of each seed shedding pipe respectively corresponds to a plant hole in a seedling-raising disk; and the seed storing box is a rectangular bottomless box and is arranged in the seed distributing box, the bottom surface of the box is in close contact with the seed storing plate, and the seed storing box can slide back and forth between both sides inside the seed distributing box. The sowing of one seedling-raising disk can be completed by operating the seeder once. The invention can be used for tobacco seedling raising and seedling raising of other crops as long as the storing holes are designed into the particle diameter of a certain seed.

The invention discloses a pneumatic large-particle-size seed single-grain dibbling device. The pneumatic large-particle-size seed single-grain dibbling device comprises a frame and a seed box arrangedon the frame and used for seed falling; and the pneumatic large-particle-size seed single-grain dibbling device also comprises a seed blocking piece sleeving the periphery of the seed box, a seed pushing piece sleeving the periphery of the seed blocking piece, a hole digging piece sleeving the periphery of the seed pushing piece, a first driving mechanism used for driving the seed blocking piece,the seed pushing piece and the hole digging piece to be independently opened and closed, and a second driving mechanism used for driving the seed pushing piece and the hole digging piece to independently move up and down. The pneumatic large-particle-size seed single-grain dibbling device provided by the invention is simple in structure, reasonable in design and convenient to maintain in a laterperiod; one-time single-grain sowing can be achieved by adjustment of the distance between the seed blocking piece and the seed box through the special three-layer design of the seed blocking piece, the seed pushing piece and the hole digging piece; in addition, a series of actions of hole digging, soil expanding, seed falling and seed pushing are achieved through controlling of an air cylinder, and stable control is achieved; meanwhile, one working stroke period of the air cylinder is short, and the seeding speed is increased, so the working efficiency can be effectively improved.

The invention relates to a part on an agricultural seeder, and especially relates to a speed changing air chamber hole seeding apparatus which is suitable for a precise seeder. The apparatus comprises a hole seeding drum, a film pressing roller (1), a negative pressure seed fetching device, and a roller main shaft (8). The negative pressure seed fetching device and the roller main shaft (8) are coupled through a bearing. The negative pressure seed fetching device comprises an air chamber (2) and an air blocking block (23) in the air chamber (2), wherein the air blocking block (23) is fixedly connected with the roller main shaft (8). On a back wall of the air chamber (2), an air chamber gear (4) is connected through an air chamber gear shaft (13). A sleeve pipe (10) is arranged on the roller main shaft (8), wherein the sleeve pipe (10) is slidingly fit or rolling-engaged with the roller main shaft (8). A central gear (12) is arranged on the sleeve pipe (10). The central gear (12) is orderly engaged with the air chamber gear (4) and an inner gear (3) on an inner gear support (17), such that the negative pressure seed fetching device rotates under the driving of the air chamber gear shaft (13). The apparatus provided by the invention is advantaged in that: precise seed discharging is realized through combination of the rotation of the negative pressure chamber and the air blocking of the sliding block. The airtightness of the negative pressure chamber is good, therefore the negative pressure is stable, air leakage of the negative pressure chamber is reduced, seed fetching rate is improved, empty-hole rate is reduced, and seeding speed can be substantially improved.

The present invention discloses a multifunctional precision seeder, which comprises a rack, a seed storage box arranged on the rack, a wheel and a handle, wherein the wheel and the handle are respectively arranged on both ends of the rack, the main shaft of the wheel is provided with a driving wheel, the outer portion of the seed storage box is provided with a driven wheel, the driven wheel and the driving wheel are connected through a belt, a separation plate is arranged in the seed storage box, the seed storage box is divided into a front cavity and a rear cavity by the separation plate, the lower portions of the front cavity and the rear cavity are respectively provided with a seeding groove, seeding mechanisms are respectively arranged below the seed grooves, and respectively comprise a seeding disc, a baffle and a drive shaft, the seeding discs are provided with seeding holes, the seeding grooves are arranged just above the rotation traces of the seeding holes, the baffle is arranged below the seeding disc, and the drive shaft is linked to the driven wheel. According to the present invention, the multifunctional precision seeder has characteristics of simple structure and convenient operation; by using the seeding mechanism to precisely seed, different seeds can be seeded; and the multifunctional precision seeder is suitable for different working conditions, and has characteristics of good seeding effect, strong function, and wide applicability.

The invention discloses a precision seeding device for beans. The device comprises a rack, a seed metering device and a push-pull mechanism, wherein a mounting plate is arranged on the rack, the seedmetering device comprises a base plate, base plate weirs I, seed metering plates, seed metering plate weirs II and seed blocking plates, the seed metering plate weirs II are connected with the push-pull mechanism, seed storage grooves are defined by adjacent seed blocking plates and seed metering plates, a row of seed metering holes are formed in the position, close to the corresponding seed blocking plate and located in each seed storage groove, in each seed metering plate, seed metering grooves which are in one-to-one correspondence to 3 or 4 seed metering holes in each seed metering plate are uniformly distributed in the base plate, and seed receiving bins communicated with the seed metering grooves in a one-to-one correspondence manner and hole forming cones arranged at the bottoms ofthe seed receiving bins are mounted at the bottom of the mounting plate. The precision seeding device is simple in structure, low in cost and capable of being operated manually and automatically, theseed metering plates can store and meter seeds quickly through movement of the push-pull mechanism, the seeding speed and accuracy is increased, excessive seeding and missing seeding are avoided, seedmetering turnover time is saved, and the seeding efficiency of farmers is improved.

The invention relates to the field of farm tools, in particular to a multi-purpose rape seeding device. The device includes a seeding barrow, wherein a rotary shaft is rotatably connected to one end of the seeding barrow, a walking wheel and a first transmission wheel are coaxially arranged on the rotary shaft, and a twinned transmission wheel and a second transmission wheel are rotatably connected with the seeding barrow; transmission is formed between the first transmission wheel and the twinned transmission wheel through a first transmission belt, transmission between the second transmission wheel and the twinned transmission wheel is achieved through a second transmission belt, and a seed discharging wheel is fixed on the second transmission wheel; a material discharge bin is arrangedon the seeding barrow, the seed discharging wheel rotates in the material discharge bin, and the outer wall of the seed discharging wheel is in contact with the inner wall of the material discharge bin; a plurality of material troughs are distributed on the periphery of the seed discharging wheel, the material troughs are of an arc shape, and the parts, toward the center of the seed discharging wheel, of the material troughs are sunken; and a certain distance is formed between every two adjacent material troughs. No other mechanical power traction is required by the multi-purpose rape seedingdevice during operation, the seed discharging wheel rotates, continuous and equal amount of seeding is carried out, the quantity of seeds is controllable, and the seeding speed is high.

The invention provides a multifunctional bunch planter, which comprises a planting unit. The planting unit comprises a material groove arranged at the upper part; a planting groove is formed at the bottom of the material groove; planting disks are arranged below the material groove; planting holes are formed on the planting disks; a baffle plate is arranged below the planting disks; the planter is further provided with a driving shaft for driving the planting disks to rotate; the planting groove is arranged over a rotation trace of the planting holes; the planting disks comprise an upper planting disk and a lower planting disk; the planting holes comprise upper planting holes and a lower planting hole; the upper planting disk is provided with four upper planting holes; the upper planting holes are symmetrically distributed along the circumference direction of each planting disk; the lower planting hole is formed on the lower planting disk; and the lower planting hole is arranged underthe rotation trace of the upper planting holes. The single planting disk plants small grain seeds and two planting disks plant large grain seeds, so different seeds are planted by different methods to guarantee the smooth planting process of each type of seeds without clamping or smashing the seeds.

The invention discloses a device for agricultural sowing. The device comprises a push rod, a support frame is mounted at one side of the push rod, an adjustment assembly is mounted between the push rod and the support frame, a seed storage box is mounted at the upper end of the support frame, and the seed storage box is connected with a residual amount detecting assembly; the residual amount detecting assembly comprises a photoelectric sensor arranged in the seed storage box and used for detecting the seed residual amount in the box in real time, a single-chip microcomputer connected with thephotoelectric sensor, a power source connected with the single-chip microcomputer and an alarm, the single-chip microcomputer, the power source and the alarm device are arranged in a control box, andthe control box is fixed on the seed storage box. A worker can continuously and automatically sow seeds by using the device, so the sowing efficiency is effectively improved; and the device is also provided with the residual amount detecting assembly, and the photoelectric sensor is specifically used for detecting the condition of remaining seeds in the seed storage box, so an alarm is issued whenthe amount of seeds is insufficient in order to avoid the phenomenon of blank sowing.

The invention relates to a component on an agricultural sowing machine, in particular to an air cavity rolling type precision bunch planting device applicable to a precision sowing machine. The bunch planting device provided by the invention mainly comprises a bunch planting roller (1), a lamination wheel (2) and a negative pressure seed acquiring device body (18), wherein the bunch planting roller (1), the lamination wheel (2), the negative pressure seed acquiring device body (18) and a roller spindle (6) are connected by virtue of bearings, the lamination wheel (2) is fixedly connected with the negative pressure seed acquiring device body (18) by virtue of a reinforcing plate (3) fixedly connected with the lamination wheel (2) or is directly fixedly connected with the negative pressure seed acquiring device body (18) by virtue of a connecting piece, and a gas check block (27) fixedly connected with the roller spindle (6) is arranged in the negative pressure seed acquiring device body (18). The bunch planting device provided by the invention has the advantages that: negative pressure cavity rotation and slide block gas check are combined to realize precision sowing, a negative pressure cavity has good impermeability, thus a negative pressure is more stable, air leakage of the negative pressure cavity is reduced, the seed acquiring rate is improved, and the cavity rate is reduced; and the sowing speed can be obviously improved.