CN113141819B

CN113141819B - Crop seed seeder

Info

Publication number: CN113141819B
Application number: CN202110326345.6A
Authority: CN
Inventors: 王小瑜; 康建明; 彭强吉; 张宁宁; 张春艳
Original assignee: Shandong Academy of Agricultural Machinery Sciences
Current assignee: Shandong Academy of Agricultural Machinery Sciences
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2022-09-02
Anticipated expiration: 2041-03-26
Also published as: CN113141819A

Abstract

The invention relates to a crop seed sowing device, comprising: seed box: the seed discharging part is arranged at the bottom of the seed box; get kind of a mechanism: including stretching into the rotary drum of a kind portion, the rotary drum is connected with the first actuating mechanism who installs at running gear, and the urceolus face of rotary drum is installed and is got kind of claw, and running gear installs the gas and inhales the subassembly, gets kind of claw and can inhale the mode that the subassembly adopted the gas to inhale through the gas and adsorb fixed seed, reversing mechanism: the seed sowing device comprises a reversing wheel, wherein the reversing wheel is connected with a second driving mechanism arranged on a traveling mechanism, a seed receiving pipe and a reversing pipe which are intersected and communicated with the external space of the reversing wheel are arranged in the reversing wheel, the seed receiving pipe can receive seeds which are released by a seed claw and enter from a sharp end or a round blunt end, and a plurality of grooves which can enable the sharp ends of the seeds to be inserted are formed in the pipe wall in the reversing pipe.

Description

Crop seed seeder

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a crop seed sowing device.

Background

The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.

At present, many crop seeds are in a slender structure, one end of the crop seeds is round and blunt, the other end of the crop seeds is in a pointed structure, most typical crop seeds are peanuts, and the peanuts are traditional oil crops and have important positions. Most of the traditional peanut planting is multi-grain hole sowing, and in recent years, with the improvement of the quality of peanut seeds and the development of a single-grain seed taking technology, the peanut sowing starts to realize single-grain precision sowing. With the gradual maturity of peanut cultivation technology, the yield of peanuts has reached a quite high level, and the yield of peanuts cannot be greatly improved by means of the existing agriculture, so that agricultural experts begin to propose a new directional planting method for improving the yield, namely, the radicles of the peanuts are vertically planted in the soil during peanut sowing, and the method can enable the radicles of the planted peanuts to be uniformly downward, is beneficial to the vertical downward growth of the roots, and promotes the uniform growth indexes of peanut plants. However, the inventor finds that the current seed directional sowing machine mainly performs directional sowing on crops such as corn, walnut, garlic and the like, the peanut seeds have large shape difference with the seeds, the peanut seeds are most commonly in use in an elliptical shape and a conical shape, one end of each seed is blunt or flat and is a cotyledon end, the other end of each seed is more protruded and is a germ end, the peanut seeds have the appearance characteristics of being slender and the germ ends are protruded and pointed, and the gravity center is close to the center.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, provides a crop seed sowing device, can realize directional sowing of seeds with one end in a round and blunt shape and the other end in a pointed structure, has high working efficiency, and meets the requirement of crop yield.

In order to achieve the purpose, the invention adopts the following technical scheme:

in a first aspect, the present invention provides a crop seed planting device comprising:

seed box: the seed discharging part is arranged at the bottom of the seed box;

get kind of a mechanism: the peanut seed picking device comprises a rotary drum extending into a seed outlet part, wherein the rotary drum is connected with a first driving mechanism arranged on a travelling mechanism, a seed picking claw is arranged on the outer drum surface of the rotary drum, the travelling mechanism is provided with an air suction assembly, and the seed picking claw can adsorb and fix peanut seeds in an air suction mode through the air suction assembly;

a reversing mechanism: including the reverse wheel, the reverse wheel is connected with the second actuating mechanism who installs at running gear, and the reverse wheel is inside to be equipped with crossing and with the inoculation pipe and the switching-over pipe of reverse wheel exterior space intercommunication, the inoculation pipe can connect the seed of collecting the seed claw of releasing by most advanced or round blunt end entering, the intraductal pipe wall of switching-over is equipped with a plurality of recesses that can make the most advanced male of seed.

Furthermore, the seed taking claw is provided with a seed taking hole, the seed taking hole is communicated with the inner space of the rotary drum, and the hole wall of the seed taking hole is provided with a plurality of air holes.

Furthermore, get kind of a hole and adopt the bowl type structure with seed shape assorted, get the tip that kind of a hole area is less and be close to the rotary drum setting.

Furthermore, the air suction assembly comprises end covers arranged at two ends of the rotary drum, the end covers are in sliding connection with the inner side surface of the rotary drum, the end covers and the rotary drum jointly form a sealed cavity, the end covers are fixedly arranged on the traveling mechanism, the end covers are connected with the vacuumizing part, and the end covers are further fixedly provided with blocking pieces, the blocking pieces are attached to the inner side surface of the rotary drum, so that the seed taking holes formed by the seed taking claws can be blocked.

Furthermore, seed case adopts back taper platform column structure, and its bottom is equipped with kind portion, and kind portion includes two play blank with seed case bottom fixed connection, and two play blank bottoms are connected with bottom tank wall both ends, and two play blank form the export mouth that the axis level set up, the rotary drum stretches into two spaces that go out between the blank, and goes out the side end face laminating of blank and rotary drum.

Furthermore, the bottom box wall is provided with an opening for the seed taking claw to pass through.

Further, a first brush is arranged at the opening.

Furthermore, a second brush is arranged at the upper part of the seed outlet.

Furthermore, the inoculation pipe and the reversing pipe are vertically arranged.

Furthermore, the length of the inoculation pipe and the inner diameter of the reversing pipe are the same, and the inner diameters of the inoculation pipe and the reversing pipe are 1.4-1.6 times of the average diameter of the peanut seeds.

Furthermore, the periphery of the reversing wheel is sleeved with an outer plate, the outer plate is fixedly arranged on the traveling mechanism, the reversing wheel is in sliding connection with the inner side surface of the outer plate, and the outer plate is provided with a seed receiving hole and a seed discharging hole.

The invention has the beneficial effects that:

1. according to the seeding device, through the structural design of the seed taking claw and the reversing wheel, the directional grabbing of the seeds is realized by utilizing the shape characteristics of the seeds, the directional discharging is performed through the reversing wheel, the directional seeding requirement of the seeds is met, the automation degree is high, and the working efficiency is high.

2. According to the sowing device, the seed taking claw can disturb seeds in the seed box, so that the seed leakage probability during seed taking is reduced.

3. According to the sowing device, the seed taking claw adopts a suction mode to adsorb and fix seeds, and the seed taking hole adopts a bowl-shaped structure, so that mechanical damage to peanut seeds is avoided, and the integrity of the seeds is good.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;

FIG. 2 is a schematic view of the assembly of a seed box and a seed box according to embodiment 1 of the present invention;

FIG. 3 is a schematic view of a seed-taking wheel according to embodiment 1 of the present invention;

FIG. 4 is a cross-sectional top view of a seed-taking wheel according to example 1 of the present invention;

FIG. 5 is a cross-sectional view of a seed-taking claw according to example 1 of the present invention;

FIG. 6 is a schematic view of an opening arrangement in embodiment 1 of the present invention;

FIG. 7 is a schematic diagram showing the distribution of the seed falling area and the seed filling area in example 1 of the present invention;

FIG. 8 is a front view of a peanut seed picking claw according to example 1 of the present invention with the cotyledon end of the seed sucked inward;

FIG. 9 is a schematic top view of a peanut seed of example 1 with the cotyledon end of the seed sucked inward into the seed-taking claw;

FIG. 10 is a schematic front view of a peanut seed straddling a seed-removing claw according to example 1 of the present invention;

FIG. 11 is a top view of a peanut seed straddling a seed-receiving jaw according to example 1 of the present invention;

FIG. 12 is a schematic structural view of a reversing mechanism according to embodiment 1 of the present invention;

FIG. 13 is a schematic view showing the inner structure of a direction changing tube according to embodiment 1 of the present invention;

FIG. 14 is a cross-sectional side view of a reversing tube according to example 1 of the present invention;

FIG. 15 is a schematic view showing a seeding process when the embryo end of the seed is downward entering a seed receiving tube according to example 1 of the present invention;

FIG. 16 is a schematic view showing a seed sowing process when the end of a seed cotyledon of example 1 of the present invention is downward entering a seed receiving tube;

FIG. 17 is a first flowchart illustrating the operation of embodiment 1 of the present invention;

FIG. 18 is a flowchart of the second operation in embodiment 1 of the present invention;

wherein, 1, a seed box, 2, a seed outlet part, 2-1, a seed outlet plate, 2-2, a bottom box wall, 2-3, a seed baffle plate, 2-4, a second brush, 3, a seed taking mechanism, 3-1, a rotary drum, 3-2, a blocking piece, 3-3, a cover plate, 3-4, a seed taking claw, 3-4-1, an installation part, 3-4-2, a bulge part, 3-4-3, a seed taking hole, 3-4-4, a wind hole, 4, a reversing mechanism, 4-1, a reversing wheel, 4-2, a seed receiving pipe, 4-3, a reversing pipe, 4-3-1, a first boss, 4-3-2, a seed discharging boss, 4-4, an outer ring plate, 4-5, a seed receiving hole, 4-6, a wind pipe, 6. the fan, 7, the opening, 8, the first brush, 9, the cotyledon end, 10, the embryo end.

Detailed Description

For convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Just as the introduction of background art, the research of directional seeding equipment to the seed of one end round blunt, the other end is sharp column structure is not at present, and the seed directional seeding is inefficient, to above-mentioned problem, this application has proposed a crops seed seeder.

In a typical embodiment example 1 of the present application, as shown in fig. 1, a crop seed sowing device, the sowed seeds are peanut seeds, including a seed box 1, the seed box is fixedly installed on a walking mechanism, the walking mechanism adopts an existing tractor or other agricultural walking equipment, and adopts the existing equipment, and the concrete structure thereof is not described in detail, and the walking mechanism can drive the seed box to walk.

In this embodiment, as shown in fig. 2, the seed box is of an inverted frustum-shaped structure, the bottom of the seed box is provided with a seed discharging portion 2, the seed discharging portion includes two seed discharging plates 2-1, the seed discharging plates are fixedly connected with the bottom of the seed box, the bottoms of the two seed discharging plates are sealed by using bottom box walls 2-2, the two seed discharging plates form a seed discharging port with a horizontal axis, and the inverted frustum-shaped structure is adopted, so that the volume of the seed box is increased above the seed box, and more seeds can be accommodated; the seed fluidity is increased below the seed collecting tray, the seeds are promoted to be concentrated to the seed outlet,

peanut seeds poured from the upper part of the seed box can flow out through the seed outlet part, a seed baffle plate 2-3 and a second brush 2-4 are arranged at the upper part of the seed outlet, and the seed baffle plate and the second brush are connected with the wall of the seed box above the seed outlet.

As shown in fig. 3-5, a seed taking mechanism 3 is further installed on the traveling mechanism, in this embodiment, the seed taking mechanism includes a rotary drum 3-1, the rotary drum extends into a space between two seed discharging plates, and a distance between inner side surfaces of the two seed discharging plates is equal to a length of the rotary drum along an axial direction thereof, that is, the seed discharging plates are attached to end surfaces of the rotary drum, the seed discharging plates are attached to the rotary drum in a sliding manner, the rotation of the rotary drum is not hindered by the seed discharging plates, a bottom of the rotary drum is arranged in a tangent manner with a bottom wall of the seed box, and the two seed discharging plates and the rotary drum form a relatively closed seed taking space.

Preferably, the cross-sectional area of the portion of the drum extending between the two seed emerging plates is less than half the cross-sectional area of the drum, so that the seed emerging plates do not interfere with the connection to the first drive mechanism.

The two ends of the rotary drum are provided with cover plates 3-3, the cover plates are circular plates, the outer peripheral surfaces of the cover plates are in sliding fit with the inner cylinder surface of the rotary drum, the rotary drum and the two cover plates jointly form a seed taking wheel, the cover plates are fixedly connected with a cover plate fixing frame, and the cover plate fixing frame is installed on a travelling mechanism.

In this embodiment, the rotating drum is connected to a first driving mechanism, preferably, the first driving mechanism employs a first motor, the first motor is fixed to the traveling mechanism, and the first motor is connected to the rotating drum through a transmission mechanism and can drive the rotating drum to rotate around its own axis.

Preferably, the transmission mechanism adopts a belt transmission mechanism and comprises a driving belt wheel, a driven belt wheel and a transmission belt wound between the driving belt wheel and the driven belt wheel, the driving belt wheel is connected with an output shaft of the first motor, the driven belt wheel is connected with a belt wheel shaft, and the belt wheel shaft penetrates through the first cover plate on one side and then is fixedly connected with the inner side surface of the rotary drum through a plurality of connecting rods so as to drive the rotary drum to rotate.

In order to form a sealing space between the cover plate and the rotary drum, a sealing ring is arranged between the belt wheel shaft and the cover plate for sealing.

In other embodiments, the transmission mechanism may be a gear transmission mechanism or a chain transmission mechanism, and those skilled in the art can select the transmission mechanism according to actual needs.

When the rotary drum completely extends into the space between the two seed discharge plates or the partial section area of the rotary drum extending into the space between the two seed discharge plates is larger than half of the section area of the rotary drum, a through hole for the output shaft of the transmission mechanism to pass through needs to be formed in the seed discharge plates.

The outer cylindrical surface of the rotary drum is provided with 3-4 seed taking claws, in the embodiment, one seed taking claw is arranged on the outer cylindrical surface of the rotary drum, and single-seed taking can be realized by rotating the rotary drum for one circle.

Preferably, the seed taking claw comprises a mounting part 3-4-1, the mounting part adopts an arc-shaped plate matched with the shape of the rotary drum, the arc-shaped plate is fixedly connected with the outer cylindrical surface of the rotary drum, a protruding part 3-4-2 is arranged on the mounting part, a seed taking hole 3-4-3 is arranged on the protruding part, and the seed taking hole is communicated with a cavity formed by the rotary drum and the cover plate.

Preferably, the seed taking hole is of a bowl-shaped structure matched with the shape of the peanut seeds, the peanut seeds can be adsorbed and fixed in the seed taking hole under the action of vacuum air suction, and the long axis of the peanut seeds is approximately coaxial with the axis of the seed taking hole.

The end part with the smaller area of the seed taking hole is arranged close to the rotary drum, the average value of the maximum diameter of the peanuts of 0.5-0.7 times of the area of the end part is equal to the average value of the maximum diameter of the peanuts of 1.2-1.4 times of the area of the end part with the larger area, and the average value of the maximum diameter of the peanuts of 1-1.1 times of the area of the middle part of the seed taking hole.

In the present example, the average maximum diameter and average length of the peanuts are determined according to the quality of the peanuts, and the details thereof are described here.

The hole wall of the seed taking hole is provided with a plurality of air holes 3-4-4, preferably, the air holes are U-shaped holes, the air holes are uniformly distributed along the circumference, and the length of each air hole is half of that of the seed taking hole.

The walking mechanism is provided with the air suction assembly, and the seed taking claw can adsorb and fix peanut seeds or release the peanut seeds through the air suction assembly.

In this embodiment, the air suction assembly comprises a vacuum pumping piece and a blocking piece 3-2.

One of the first cover plates is penetrated by an output shaft of the transmission mechanism, the other first cover plate is connected with a vacuumizing part, and the vacuumizing part can vacuumize the space between the first cover plate and the rotary drum.

Preferably, the vacuumizing part adopts a fan 6, the fan is connected with one end of an air pipe 5, and the other end of the air pipe is connected with the cover plate and is communicated with a space formed by the cover plate and the rotary drum.

The fan is started, air in a space formed by the cover plate and the rotary drum can be pumped out, vacuum is formed, and therefore peanut seeds are adsorbed and fixed.

The blocking piece is arranged at the bottom of the cover plate, is fixed with one cover plate or is fixed with two cover plates, adopts an arc-shaped structure, is attached to the inner cylinder surface of the rotary drum, and is configured to be capable of blocking the hole taking hole.

As shown in fig. 6, the bottom wall of the seed box is provided with an opening 7, the opening is used for allowing the seed taking claw to pass through, the width of the opening is smaller than the length of the peanut seeds, the peanut seeds are not allowed to pass through, the opening is provided with a first brush 8, the damage to the seeds caused by the insertion opening of the tips of the peanut seeds is prevented, the brush is upwards taken up when the seed taking claw passes through, the seed taking claw is opened to two sides, and the seed taking claw returns to the initial position after passing through to seal the opening, so that the seeds are prevented from being stuck or falling out when the seeds are not taken.

As shown in fig. 7, the upper part of the seed outlet is provided with second brushes 2-4, the left side of the second brush is a seed dropping area, the right side of the second brush is a seed filling area, the second brush can flexibly block seeds which are taken up by the seed taking claw and are not adsorbed, when the seeds which are taken up are more, occasionally, the seeds break through the second brush to enter the seed dropping area, and the seeds can fall back to the seed dropping area under the action of self gravity and enter the seed box again after the seed taking claw passes through the seed box.

As shown in fig. 8-11, the working principle of the seed-taking device of this embodiment is as follows: stirring seeds when the seed taking claw passes through the seed box, moving the seeds along with the inner wall of the seed sucking hole under the action of suction force, dead weight and friction force among the seeds when the seed taking claw is in contact with the embryo end or the cotyledon end of the seeds in the process of leaving the seed box from the lowest position, blocking the seed sucking hole when the seeds reach the bottom of the seed sucking hole, sucking the seeds by the seed sucking hole, wherein the long axis of the seeds is basically consistent with the central line of the seed sucking hole, the seed taking claw continues to suck the seeds to rotate, the blocking piece seals the cavity formed by the first cover plate of the seed sucking hole and the rotary drum when the seeds reach the bottommost part again, the seed sucking hole loses the suction force, and the seeds vertically leave the seed taking claw under the action of the dead weight; if the two transverse sides of the seeds straddle the seed taking claw, most of suction force of the suction holes can be counteracted through the air holes, so that the seeds cannot be sucked, and when the seed taking claw continuously rotates, the seeds fall from the seed taking claw under the action of the gravity of the upper-layer seeds until the seed taking claw sucks one seed to leave the seed box.

Get kind of an in-process, get the motion of kind claw in seed case and can produce the disturbance to the peanut seed in the seed case, reduced the rate of leaking kind, and adopt the mode of air-suction to adsorb fixed the peanut seed, avoided the mechanical damage to the peanut seed.

As shown in fig. 12-14, a reversing mechanism 4 is arranged right below the rotating drum, the reversing mechanism comprises a reversing wheel 4-1, the diameter of the reversing wheel is the same as that of the rotating drum, the reversing wheel is arranged right below the rotating drum, the reversing wheel is connected with a second driving mechanism, and the second driving mechanism can drive the reversing wheel to rotate.

In this embodiment, the second driving mechanism includes a second motor installed on the traveling mechanism, and the second motor is connected with the reversing wheel through a transmission mechanism.

Preferably, the transmission mechanism adopts an existing belt transmission mechanism or a gear transmission mechanism or a chain transmission mechanism, and a person skilled in the art can select the transmission mechanism according to actual needs.

And an output shaft of the transmission mechanism is connected with the reversing wheel and can drive the reversing wheel to rotate.

The reversing wheel is internally provided with a seed receiving pipe 4-2 and a reversing pipe 4-3, preferably, the seed receiving pipe and the reversing pipe are both thin-walled steel pipes, the inner diameter, the outer diameter and the length of the seed receiving pipe and the reversing pipe are the same, and the seed receiving pipe and the reversing pipe are arranged in an intersecting way at an included angle. The length of the inoculation tube is the same as that of the reversing tube.

Preferably, the axis of inoculation pipe and switching-over pipe is 90 settings, the one end and the switching-over union coupling of inoculation pipe, the other end extend to the outer wheel face of switching-over wheel to be linked together with the switching-over wheel exterior space, switching-over pipe one end and inoculation union coupling, the other end extend to the outer wheel face of switching-over wheel, and be linked together with the exterior space of switching-over wheel.

The included angle between the interface of the inoculation tube and the reversing tube and the axial line of the inoculation tube and the axial line of the reversing tube is 45 degrees, and the center of the interface is positioned at the center of the reversing wheel because the lengths of the inoculation tube and the reversing tube are equal.

The inner diameters of the inoculation tube and the reversing tube are 1.4-1.6 times of the average diameter of the peanut seeds, preferably, the inner diameters of the inoculation tube and the reversing tube are 1.5 times of the average diameter of the peanut seeds, so that the peanut seeds can only enter the inoculation tube or the reversing tube from the leaf end or the embryo end downwards, and the peanut seeds cannot turn over in the inoculation tube and the reversing tube.

The inner tube wall of the reversing tube is provided with a plurality of grooves, and the grooves are configured to allow the embryo ends of the peanut seeds to be inserted, so that the grooves limit the movement of the embryo ends of the peanut seeds.

In the embodiment, the inner pipe wall of the reversing pipe is provided with a plurality of first bosses 4-3-1 along the axial direction of the reversing pipe and second bosses 4-3-2 along the circumferential direction of the reversing pipe, and the first bosses and the second bosses are vertically arranged in a crossed manner to form a plurality of grooves 4-3-3.

In another embodiment, a plurality of grooves are formed in the inner pipe wall of the reversing pipe.

An outer ring plate 4-4 covers the outer wheel surface of the reversing wheel, the reversing wheel is connected with the outer ring plate in a sliding mode, the outer ring plate is fixed on the traveling mechanism through an outer ring plate support, and the outer ring plate does not hinder the reversing wheel from rotating.

The outer ring plate is provided with a seed receiving hole 4-5 and a seed discharging hole 4-6, the seed receiving hole is arranged right below the rotary drum, and when the seed receiving pipe is aligned with the seed discharging hole, peanut seeds released by the seed taking claw can enter the seed receiving pipe through the seed receiving hole.

The included angle between the center of the seed discharging hole and the connecting line between the center of the reversing wheel and the connecting line between the seed receiving hole and the center of the reversing wheel is 180 degrees, the seed discharging hole is arranged vertically downwards, and when the seed discharging hole is aligned with the reversing pipe, peanut seeds in the reversing pipe can be discharged in a vertical state through the seed discharging hole.

The working principle of the reversing mechanism of the embodiment is as follows:

as shown in fig. 15, the embryo end 10 of the peanut seed falls downward into the inoculation tube, the peanut seed cannot rotate due to the limitation of the diameter of the inoculation tube, when the peanut seed falls into the bottom of the inoculation tube, the sharp corner of the embryo end is inserted into the groove of the reversing tube, the sharp top of the embryo end is clamped by the groove, a circumferential stable supporting force is provided for the seed, the seed is prevented from sliding longitudinally along the reversing tube, the cotyledon end leans against the wall of the inoculation tube, and the seed and the reversing wheel form a relatively stable state under the support of the two ends; the reversing wheel rotates, the supporting force of the reversing tube and the inoculation tube on the seeds also changes along with the change of the tube diameter position, and the seeds cannot rotate in the rotating process because the grooves can always provide enough supporting force; when the seed receiving pipe rotates to the position that the opening faces downwards, the supporting force of the groove to the seed is reduced, the component force of the gravity of the seed along the direction of the seed receiving pipe is larger than the friction force between the seed and the seed receiving pipe, the seed slides downwards along the seed receiving pipe under the action of the gravity of the seed, and the cotyledon end is discharged from the seed receiving pipe downwards.

As shown in fig. 16, the leaf end 9 of the peanut seed falls downward into the inoculation tube, the peanut seed cannot rotate due to the limitation of the diameter of the inoculation tube, when the peanut seed falls into the bottom of the inoculation tube, the leaf end of the peanut seed cannot fall into the groove of the reversing tube but stretches across the groove, and the upper end and the lower end of the seed are balanced only by contact force; the gravity center of the peanut seeds is close to the center or the cotyledon end, in the rotation process of the reversing wheel, the component force of the gravity of the seeds in the direction of the reversing pipe is gradually increased, the friction force between the reversing pipe and the seeds is gradually reduced, when the component force is larger than the friction force, the seeds generate angular acceleration to rotate, the seed ends are adjusted to be downward, and the seeds are discharged along the reversing pipe.

The whole reversing mechanism is simple in structure, convenient to machine and manufacture and high in working efficiency.

The working method of the peanut seed sowing device in the embodiment comprises the following steps:

as shown in fig. 17, the first driving mechanism and the second driving mechanism respectively drive the rotary drum and the reversing wheel to rotate at a constant speed in opposite directions, the seed taking wheel rotates anticlockwise, the reversing wheel rotates clockwise, the initial positions of the two wheels are relatively fixed, the seed taking claw adsorbs peanut seeds in the motion process of the seed box, the position of the seed taking claw reaches the lowest point, the suction force is lost under the action of the blocking piece, the end of a seed leaf falls downwards from the seed taking claw and rapidly falls, the seed leaf reaches the bottom of the seed receiving pipe after passing through the seed receiving hole, the seed cannot rotate around a short shaft in the falling process due to the limitation of the pipe diameter, the vertical state is maintained, the end of the seed leaf is positioned on the reversing pipe, and the seed and the reversing pipe are kept balanced only by the friction force; the reversing wheel continues to rotate, the seeds start to rotate under the action of self gravity and supported force, the seeds are reversed and become cotyledon ends which fall downwards and rapidly along the reversing pipe, and the cotyledon ends are discharged from the seed discharging port.

As shown in fig. 18, when the embryo end of the seed falls downward from the seed taking claw, the seed passes through the inoculation port and reaches the bottom of the inoculation tube, due to the limitation of the tube diameter, the seed cannot rotate around the short shaft in the falling process, the seed keeps a vertical state, and the sharp top of the embryo end is inserted downwards into the groove of the reversing tube; the reversing wheel continues to rotate for 45 degrees, and the seeds can not rotate because the sharp top of the embryo end is subjected to the stable supporting force around the groove; when the seed sowing device continues to rotate, the component force of the gravity of the seeds along the direction of the seed inoculation pipe is larger than the friction force between the seeds and the seed inoculation pipe, the seeds begin to slide down and rapidly reach the seed sowing port, and the cotyledon end is discharged from the seed sowing port downwards.

The seeding device of this embodiment, according to the shape characteristics of peanut seed self, realized automatic directional discharge, work efficiency is high, has satisfied the demand of peanut seeding.

Of course, the sowing device of the present embodiment can be used to sow other types of crop seeds with one end being round and the other end having a pointed structure, and the method is the same as the sowing method of peanut seeds, and the description thereof will not be repeated.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. A crop seed planting device, comprising:

seed box: the seed discharging part is arranged at the bottom of the seed box;

get kind of a mechanism: the seed taking device comprises a rotary drum extending into a seed outlet part, wherein the rotary drum is connected with a first driving mechanism arranged on a travelling mechanism, a seed taking claw is arranged on the outer cylinder surface of the rotary drum, the travelling mechanism is provided with an air suction assembly, and the seed taking claw can adsorb and fix seeds in an air suction mode through the air suction assembly;

a reversing mechanism: the seed receiving tube can receive seeds which are released by the seed claws and enter from the sharp ends or the round blunt ends, and the tube wall in the reversing tube is provided with a plurality of grooves which can enable the sharp ends of the seeds to be inserted;

the seed taking claw is provided with a seed taking hole which is communicated with the inner space of the rotary drum, and the hole wall of the seed taking hole is provided with a plurality of air holes.

2. The crop seed sowing apparatus of claim 1, wherein the seed taking hole is of a bowl-shaped structure matched with the shape of the seed, and the end with the smaller area of the seed taking hole is arranged close to the rotary drum.

3. The crop seed sowing device according to claim 1, wherein the air suction assembly comprises end caps arranged at two ends of the rotary drum, the end caps are slidably connected with the inner side surface of the rotary drum, the end caps and the rotary drum form a sealed cavity together, the end caps are fixedly arranged on the travelling mechanism, the end caps are connected with the vacuumizing piece, and the end caps are further fixedly provided with blocking pieces, the blocking pieces are attached to the inner side surface of the rotary drum, and can block seed taking holes arranged on the seed taking claws.

4. The crop seed sowing device of claim 1, wherein the seed box is of an inverted frustum structure, the bottom of the seed box is provided with a seed outlet part, the seed outlet part comprises two seed outlet plates fixedly connected with the bottom of the seed box, the bottoms of the two seed outlet plates are connected with two ends of the wall of the bottom box, the two seed outlet plates form seed outlets with axes horizontally arranged, the rotary drum extends into a space between the two seed outlet plates, and the seed outlet plates are attached to the side end face of the rotary drum.

5. The crop seed sowing device of claim 1, wherein an opening for the seed taking claw to pass through is formed in the bottom wall of the seed box, and a first brush is arranged at the opening.

6. The crop seed planting apparatus as claimed in claim 4, wherein the second brush is provided at an upper portion of the seed outlet.

7. The crop seed planting device as recited in claim 1, wherein the axis of the seed receiving tube and the reversing tube is arranged vertically.

8. The crop seed sowing apparatus of claim 1, wherein the seed receiving pipe and the reversing pipe have the same length and the same inner diameter, and the inner diameter of the seed receiving pipe and the reversing pipe is 1.4 to 1.6 times the average diameter of the peanut seeds.

9. The crop seed sowing device of claim 1, wherein the outer plate is sleeved on the periphery of the reversing wheel, the outer plate is fixedly arranged on the travelling mechanism, the reversing wheel is connected with the inner side surface of the outer plate in a sliding manner, and the outer plate is provided with a seed receiving hole and a seed sowing hole.