34results about How to "Precision seeding" patented technology

The invention relates to a movable bin single-seed precision hill seeder and belongs to the technical field of a movable bin hill seeder. A plurality of seed falling ports (23) are uniformly distributed on the outer periphery of a roller (2). The roller (2) and an end cover (16) are buckled into one whole body and are arranged on a plate shaft (10) through a bearing (9). One end face of the roller (2) is provided with a switching device for a nozzle (1). A plurality of seed supplementing spoons (17) are uniformly distributed on the inner wall of the end cover (16) in a ring-shaped shape. A discharge plate (3) is arranged in the roller (2). A seed plate (4) is buckled inside the discharge plate (3). A cavity between the discharge plate (3) and the seed plate (4) is a seed charging bin (11). A cavity between the discharge plate (3) and the end cover (16) is a seed storage bin (14). The end face of the discharge plate (3), which is close to the seed storage bin (14), is provided with a seed inlet (21) and a seed overflowing port (19). A seed charging mechanism (18) is arranged in the seed charging bin (11). The movable bin single-seed precision hill seeder has the advantages of functions of automatically feeding, overflowing and cleaning seeds, accurate seeding capacity, no cavity, strong practicality and the like.

The invention provides a hydraulic pushing type precision seed-metering device. The hydraulic pushing type precision seed-metering device comprises a seed box with a sealing cover plate; a water inlet hole (3) is formed in the upper part of the seed box; the bottom of the seed box is communicated with a step diameter-variable pipe (16); the step diameter-variable pipe is communicated with a first water passing hole of a vertical seed-metering pipe (13); a filter screen is arranged at the rear end of the first water passing hole and is connected with a reflowing water pipe (9); a seed push rod (6) sleeved with a spring is inserted into the vertical seed-metering pipe; a cam is arranged on the top of the seed push rod; a second water passing hole (18) is formed in the upper part of the vertical seed-metering pipe; a third water passing hole (9) is formed in the upper part of the seed push rod; the front end of the second water passing hole is connected with the reflowing water pipe and the tail end of the second water passing hole is connected with a water inlet pipe of a water pump; a water outlet pipe of the water pump is communicated with the seed box; when seeds are pushed in sequence, the second water passing hole and the third water passing hole are aligned and water reflows into the seed box; when the seeds are metered, the second water passing hole and the third water passing hole are staggered, and the reflowing water pipe is not communicated with the water inlet pipe of the water pump; and an elastic pipe (14) is arranged at the tail end of the vertical seed-metering pipe, and the inner diameter of the elastic pipe is one half of the diameter of the seeds.

The invention discloses a seed metering device special for taros and belongs to the field of agricultural machines. The seed metering device is composed of a linear track part, a rotating part and a grabbing part. The seed metering device is characterized in that sliding blocks vertically move, power of the sliding blocks comes from the operation that rotating shafts on the top of a taro sowing machine drive cranks, and the cranks and the sliding blocks are connected through rockers; swing rods connected with the sliding blocks can move vertically, the curve sliding block on the leftmost side moves on a curve track, the swing rods are made to swing left and right, the swing rods are connected with scissor-type long rods, the two topmost ends of each long rod are each connected with another curve track through the corresponding curve sliding block, an upper swing frame and a lower swing frame are adopted to support the curve tracks, supporting frames can synchronously swing along with swing of the swing rods through the connection of the three parts and the restriction of the mutual action force, and the two curve sliding blocks move vertically on the curve tracks. By means of the seed metering device, precision seed metering of the taros can be achieved, damage to main buds of the taros in the sowing process is avoided, it can be ensured that the main buds of the taros in soil are upward, and thus the problem that an existing sowing device cannot effectively sow the taros is solved.

The invention provides a seeder with a seedling strip cleaner. The seeder comprises a frame, furrow openers as well as a seedling box, a fertilizer box, seed-metering devices, fertilizer apparatuses, plow poles, ground wheels and roller sealers which are arranged on the frame, wherein the plow poles are all hollow; each furrow opener is fixed at the bottom of the frame by the plow pole; the plow poles extend into the lower ends in the furrow openers so as to serve as fertilizer discharge outlets; the upper ends of the plow poles are communicated with the fertilizer box by the fertilizer apparatuses; and the seed-metering devices which are communicated with the seed box are positioned above the rear ends of the furrow openers. The seeder is characterized in that: the bottom surfaces of thefurrow openers are raised in a ladder shape from front to back along the travelling direction; both sides, which are positioned between the fertilizer discharge outlets and the seed-metering devices,of the furrow openers are provided with scrapers; the seedling strip cleaner is arranged at the front ends of the furrow openers; the seeder comprises two axle bases which are suspended on the frame,a rotary knife shaft of which a horizontal bearing is arranged between the two axle bases, a power transmission mechanism and pairs of rotary knives which are arranged on the rotary knife shaft; eachpair of rotary knives are symmetrically arranged at an angle of 180 degrees; and one furrow opener is arranged right behind each pair of rotary knives. The seeder has a simple structure and excellentworking performance.

The invention discloses a small seed potato shifting wheel type seed metering device, and belongs to agricultural machinery; a vertical inner side face and a horizontal upper end face of an L-shaped power driving box assembly are respectively provided with a seed shifting wheel in a rotating manner and a seed filling and supply column in an up and down telescopic moving manner; seed shifting rods are evenly distributed and arranged on the seed shifting wheel; a small seed potato box is arranged on the horizontal upper end face of the L-shaped power driving box assembly, and is located at the outer side part of the seed filling and supply column; the outer part of the upper end of the seed filling and supply column is in a cone shape; a hemispherical pit and a horizontal groove are formed in the upper end face of the seed filling and supply column; a seed metering conveying frame is arranged on the small seed potato box; the hemispherical pit has the diameter of 20 mm. The device has the advantages of novel and reasonable structure, accurate seed metering, low sowing leakage rate, low re-sowing rate, reliable operation and less failure, and meets the requirements of precise sowing.

Provided is a portable seeder for large-grain crops. A first spring is connected between a supporting rod and a boosting component arranged beside the supporting rod, a duckbilled seed discharging part is arranged at the lower end of the boosting component, a cam is hinged to the boosting component, a second spring is connected between the boosting component and the cam, the cam is matched with a rolling wheel on the supporting rod, a pull rod is connected between the cam and the duckbilled seed discharging part, the boosting component is a tubular push rod, a seed box arranged beside the supporting rod is close to the push rod, a seed discharging opening is formed in the seed box, a notch is formed in the push rod, seed holes are formed in a seed discharging plate arranged in the push rod, and a seed scraping plate arranged at the bottom of the seed box is close to the seed discharging plate. When seeding operation is carried out after seeds are contained in the seed box, the supporting rod is supported on the ground, the push rod is pushed downwards, the duckbilled seed discharging part enters soil, redundant seeds on the seed discharging plate are scraped off by the seed scraping plate in the downward moving process of the seed discharging plate, seeds in the seed holes fall into the duckbilled seed discharging part, external force is removed after movement of the push rod is completed, the push rod returns upwards, the duckbilled seed discharging part is opened, the seeds fall into the soil, and then seeding can be completed.