CN115336451B

CN115336451B - Wheel type precise dibbling machine

Info

Publication number: CN115336451B
Application number: CN202211169193.4A
Authority: CN
Inventors: 周文翔; 秦永法; 姚莉; 冯斌
Original assignee: Yangzhou Teyou New Intelligent Equipment Co ltd
Current assignee: Yangzhou Teyou New Intelligent Equipment Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2024-03-22
Anticipated expiration: 2042-09-23
Also published as: CN115336451A

Abstract

The invention belongs to the technical field of agricultural machinery, and particularly relates to a wheel type precise dibbling machine. The invention comprises the following steps: the vehicle body comprises a vehicle body, a pair of front wheels and a pair of rear wheels, and the vehicle body is used as a moving platform; the slotting mechanism is arranged below the vehicle body and behind the front wheels, and is used for digging soil; the seed feeding mechanism comprises a primary seed feeding mechanism and a secondary seed feeding mechanism, the secondary seed feeding mechanism is arranged above the primary seed feeding mechanism, the primary seed feeding mechanism comprises a plurality of funnels which are used for storing and conveying seeds, the secondary seed feeding mechanism comprises a plurality of output ports which are consistent with the funnels in number, and the output ports are respectively and correspondingly input into the funnels through pipelines; the precise seed dibbling mechanism is arranged between the slotting mechanism and the rear wheel and is used for controlling the quantity of seeds and the planting distance for sowing. The invention is used for solving the technical problems that the independent running cannot be realized and the planting machine of the seed planting distance, the row distance and the quantity cannot be ensured in the prior art.

Description

Wheel type precise dibbling machine

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to a wheel type precise dibbling machine.

Background

In the field of breeding, a fixed number of seeds need to be sown into soil in a district according to a set plant spacing and row spacing, but existing sowing equipment cannot independently travel, other traction equipment is needed, plant spacing and row spacing cannot be accurately controlled, and the number of seeds falling to the ground cannot be accurately controlled, so that the district breeding needs a dibbling machine capable of independently traveling and controlling plant spacing, row spacing and number of seeds in the district.

Disclosure of Invention

The invention aims to solve the technical problems of overcoming the defects of the prior art, providing a wheel type precise dibbling machine, and solving the technical problems that the prior art cannot independently run and cannot ensure the planting distance, the row distance and the quantity of seeds.

The technical scheme for solving the technical problems is as follows: a wheel type precise seed dibbling machine, which is used for quantitative, fixed plant spacing and fixed row spacing seeding, and comprises:

a vehicle body including a vehicle body, a pair of front wheels, and a pair of rear wheels, the vehicle body serving as a moving platform;

the slotting mechanism is arranged below the vehicle body and behind the front wheels, and is used for digging soil;

the seed feeding mechanism comprises a primary seed feeding mechanism and a secondary seed feeding mechanism, the secondary seed feeding mechanism is arranged above the primary seed feeding mechanism, the primary seed feeding mechanism comprises a plurality of funnels, the funnels are used for storing and conveying seeds, the secondary seed feeding mechanism comprises a plurality of output ports which are consistent with the funnels in number, and the output ports are respectively and correspondingly input into the funnels through pipelines;

the precise seed dibbling mechanism is arranged between the slotting mechanism and the rear wheel and is used for controlling the quantity of seeds and the plant spacing for sowing.

The invention erects the seed dibbling equipment on the vehicle body capable of running, can adjust the row spacing by controlling the running speed of the vehicle body and the seed dropping speed of the precision seed dibbling mechanism, can adjust the plant spacing by adjusting the distance between the precision seed dibbling mechanisms, and can also control the seed dropping quantity, thereby meeting the requirements of district breeding.

Further: the vehicle body is provided with a PLC control system, the front wheel and the rear wheel are both provided with a speed measuring device, and the speed measuring device is electrically connected with the PLC control system;

the PLC control system is also electrically connected with the precise dibbling mechanism.

The beneficial effects of the adoption of this step are: the PLC control system can detect the running speed of the vehicle body through the speed measuring device to calculate the running distance, and then control the seed dropping speed and the seed quantity of the precise seed dropping mechanism to obtain the set row spacing and the set seed quantity.

Further: the slotting mechanism comprises:

the first driving shaft is connected with the vehicle body through a pair of front brackets, and a first connecting block and a plurality of second connecting blocks are further arranged on the first driving shaft;

the tail end of the cylinder body of the first driving cylinder is hinged with the vehicle body, and the head end of the piston rod of the first driving cylinder is hinged with a first connecting block on the first driving shaft;

the plurality of moving brackets correspond to the positions of the plurality of second connecting blocks, the moving brackets further comprise L-shaped hinging blocks, the upper ends of the L-shaped hinging blocks are connected with the second connecting blocks of the first driving shafts through first connecting rods, and the horizontal ends of the L-shaped hinging blocks are connected with the vehicle body through four-bar linkages;

a plurality of grooved wheels, each grooved wheel is arranged under each L-shaped hinging block;

and the soil pressing wheels are arranged below and behind the L-shaped hinging blocks.

The beneficial effects of the adoption of this step are: the first driving cylinder is used for pulling the first driving shaft, the first driving shaft drives the plurality of grooved wheels to be connected, the soil is excavated into the pits, after seeds fall into the pits, the soil pressing wheel is used for keeping up, and the excavated soil is flattened.

Further: the first connecting rod is a telescopic balance cylinder.

The beneficial effects of the adoption of this step are: the balance cylinder keeps certain ejection force, the lower pressure of the slotted wheel enough to dig soil is provided, and when the slotted wheel encounters hard objects or the vehicle body speed is higher, the slotted wheel can be extruded to the balance cylinder when receiving larger force, and the slotted wheel is partially retracted to avoid damage of the slotted wheel.

Further: the secondary seed supply mechanism comprises:

the transportation platform is arranged on the vehicle body through an upper bracket, and the front end of the transportation platform is provided with a plurality of output ports;

the seed accommodating belts are sequentially arranged and reversely buckled on the conveying platform, the seed accommodating belts are provided with a plurality of chambers, the chambers correspond to the output ports, and positioning cards are arranged at two ends of the seed accommodating belts;

a transmission mechanism, the transmission mechanism comprising:

the chain wheels are respectively arranged below two ends of the conveying platform, and the upper edges of the chain wheels are tangent to the top surface of the conveying platform;

the chain is wound on the outer sides of the pair of chain wheels, a plurality of limiting clamping grooves are formed in the inner sides of the chain at intervals, and the limiting clamping grooves are matched with the positioning clamps;

the chain wheel driving positioning mechanism comprises a second driving cylinder, a second connecting rod, a third connecting rod, a locking rod and a ratchet wheel, wherein the tail end of the cylinder body of the second driving cylinder is hinged to the middle of the side face of the upper bracket, the head end of the piston rod of the second driving cylinder is hinged to one end of the second connecting rod, the other end of the second connecting rod is hinged to one end of the third connecting rod, the other end of the third connecting rod and the ratchet wheel are fixedly connected with any one of the shafts of the chain wheels at the same time, one end of the locking rod is hinged to the middle of the second connecting rod, the other end of the locking rod is provided with a locking hook, and the locking hook faces towards the ratchet wheel and is matched with the ratchet wheel of the ratchet wheel.

The beneficial effects of the adoption of this step are: the plurality of seed accommodating belts can carry planting of different varieties, and are suitable for multi-variety breeding and spaced planting in a community; the transmission mechanism can accurately limit the position of the seed containing belt, so that the front and rear seed containing belts are prevented from simultaneously facing the output port, and the confusion of seeds can be effectively prevented.

Further: the precision dibbling mechanism comprises:

a second drive shaft provided on the vehicle body in parallel with the first drive shaft;

the motor is arranged on the vehicle body and is used for driving the second driving shaft;

the driving chain wheels are uniformly distributed on the second driving shaft;

a plurality of accurate quantity seed metering boxes, a plurality of accurate quantity seed metering boxes are established on the horizontal pole of automobile body, and a plurality of accurate quantity seed metering boxes's position and a plurality of the position one-to-one of drive sprocket, accurate quantity seed metering box includes:

the box cover is provided with an air outlet at the outer side, the air outlet is used for connecting a vacuum pump, the inner side of the box cover is provided with a plurality of concentric major arc grooves, the major arc grooves are communicated with the air outlet, the middle part of the box cover is also provided with a transmission shaft, one end of the transmission shaft extending out of the box cover is provided with a driven sprocket, and the driven sprocket is connected with the driving sprocket through a transmission chain;

the rotary table is arranged on the inner side surface of the box cover and is rotatably connected with the box cover through the transmission shaft, a plurality of through holes are formed in the rotary table, and the through holes are distributed according to the reference circles of the major arc grooves;

the box body, the inside of box body is equipped with the cavity, the upper portion of box body is equipped with into kind mouth, the lower part of box body is equipped with out kind mouth and retrieves the mouth, still be equipped with baffle mechanism in the box body, baffle mechanism includes third actuating cylinder, first baffle, second baffle and fourth connecting rod, the third actuating cylinder is established horizontally the last top surface of box body, the piston rod head end of third actuating cylinder with the upper end of first baffle articulates, the middle part of first baffle articulates the inboard of box body, the middle part of first baffle still is equipped with branch, the head end of branch with the one end of fourth connecting rod articulates, the middle part of second baffle articulates the box body middle part, the one end of second baffle with the other end of fourth connecting rod articulates, the below of first baffle is towards out kind mouth, the below of second baffle is towards retrieve the mouth.

The beneficial effects of the adoption of this step are: the rotary table in the precision seed dibbling box is powered by a motor to realize clockwise rotation (seen from one side of the box body), the vacuum pump connected with the box cover provides negative pressure, the rotary table adsorbs seeds on the through holes towards one side of the box body, the first baffle plate and the second baffle plate are linked by controlling the third driving cylinder, and two states are realized, namely the seeds are respectively led into the seed outlet or the recovery port;

wherein, seeds on the carousel can be adsorbed when the major arc groove position, and the seed of not being in the major arc groove position can receive gravity influence whereabouts.

Further: the box cover is hinged with one end of the box body, and the box cover is locked with the other end of the box body through a fastener.

The beneficial effects of the adoption of this step are: the open-close type connecting structure is convenient to install and maintain, the number of fasteners used is reduced, and the workload of assembly and maintenance is reduced.

Further: a movable baffle is arranged below the seed inlet.

The beneficial effects of the adoption of this step are: the movable baffle can control the quantity of seeds falling from the hopper, so that the cavity in the box body is prevented from being filled.

Further: a seed discharging guide pipe is arranged below the seed outlet.

The beneficial effects of the adoption of this step are: the tail end of the seed sowing guide pipe is close to the soil, so that seeds from the precision seed sowing box can be prevented from being blown away by wind and falling into the excavated pit; the seed dropping accuracy is ensured by the seed dropping guide tube.

Further: a cloth bag is arranged below the recovery port.

The beneficial effects of the adoption of this step are: the sack is economical and practical, and light in weight is convenient with retrieving mouthful connection, can also retrieve unnecessary seed, avoids extravagant.

The beneficial effects of the invention are as follows:

the invention utilizes the vehicle body to bear the seed supply mechanism and the precision seed dibbling mechanism, and is matched with the PLC control system, so that the running distance of the vehicle body can be accurately calculated, the distance between the precision seed dibbling mechanisms is controlled, and the precision seed dibbling mechanisms provide the seed dropping quantity, so that the quantitative cell breeding, the fixed plant spacing and the row spacing can be accurately realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a wheel type precision dibbling machine provided by the invention;

FIG. 2 is a block diagram of a wheel type precision dibbling machine provided by the invention;

FIG. 3 is a perspective view of a slotting mechanism in a wheel type precision dibbling machine provided by the invention;

FIG. 4 is a block diagram of a slotting mechanism in a wheel type precision dibbling machine provided by the invention;

FIG. 5 is a perspective view of a secondary seed supply mechanism in a wheel type precision seed dibbling machine provided by the invention;

FIG. 6 is a top view of a secondary seed supply mechanism in a wheel type precision seed dibbling machine provided by the invention;

FIG. 7 is a side view of a secondary seed supply mechanism in a wheel type precision dibbling machine provided by the invention;

FIG. 8 is a perspective view of a precision seed-dibbling mechanism in a wheel precision seed-dibbling machine provided by the invention;

FIG. 9 is a front view of a precision dibbling mechanism in a wheel precision dibbling machine provided by the present invention;

FIG. 10 is a side view of a precision seed metering mechanism in a wheel precision seed metering machine provided by the present invention;

FIG. 11 is a side view of a precision seed-dibbling cartridge in a wheel precision seed-dibbling machine provided by the present invention;

FIG. 12 is a front view of a precision seed-dibbling box in the wheel precision seed-dibbling machine provided by the invention;

FIG. 13 is a cross-sectional view taken along the direction A-A in FIG. 12;

FIG. 14 is a front view of a lid and turntable of a wheel type precision dibbling machine according to the present invention;

FIG. 15 is a perspective view of a cover of the wheel type precision dibbling machine provided by the invention;

FIG. 16 is a front view of a cover of the wheel type precision dibbling machine provided by the invention;

FIG. 17 is a perspective view of a box in a wheel type precision dibbling machine provided by the invention;

FIG. 18 is a front view of a cassette in a wheel precision dibbling machine provided by the present invention;

fig. 19 is a perspective view of a precision seed-dibbling box in a wheel precision seed-dibbling machine provided by the invention.

Reference numerals:

1-a vehicle body; 2-a slotting mechanism; 3-a first-stage seed supply mechanism; 4-a secondary seed supply mechanism; 5-a precise dibbling mechanism; 6-a vacuum pump group;

11-a vehicle body; 12-front wheels; 13-rear wheels; 14-driving position; 15-seed feeding position;

20-a first drive shaft; 21-a front support; 22-a first connection block; 23-a second connection block; 24-a first driving cylinder; 25-L-shaped hinge blocks; 26-grooved wheel; 27-a soil compacting wheel; 28-a first link; 29-four bar linkage;

41-a transport platform; 42-upper support; 43-seed accommodation tape; 44-a transmission mechanism;

51-a second drive shaft; 52-an electric motor; 53-a drive sprocket; 54-a precision seed dibbling box; 55-seeding conduit; 56-a drive chain;

411-outlet; 431-chamber; 432-positioning card; 441-sprocket; 442-chain; 443-a second drive cylinder; 444-second link; 445-third link; 446-a locking lever; 447-ratchet;

541-lid; 542-box; 543-turntable;

4421-a limit clamping groove;

5411-air outlet; 5412-a major arc trough; 5413-drive shaft; 5414-driven sprocket; 5421-seed inlet; 5422-seed outlet; 5423-recovery port; 5424—a third drive cylinder; 5425-first baffle; 5426-second baffle; 5427-fourth link; 5428-a flapper; 5431-through holes.

Detailed Description

Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Examples

As shown in fig. 1 to 19, the wheel type precision dibbling machine provided by the invention is used for quantitative, fixed plant spacing and fixed row spacing sowing, and comprises:

the vehicle body 1, the said vehicle body 1 includes the body 11, a pair of front wheels 12 and a pair of rear wheels 13, the said vehicle body 1 is used as the moving platform, there are driving position 14 and seed feeding position 15 on the vehicle body 1, the operator can ride the driving dibbling machine on driving position 14, do not need extra traction equipment, the seed feeding position 15 is to offer the riding position for other operators, give the secondary seed supply mechanism 4 to pack the seed constantly;

the slotting mechanism 2 is arranged below the vehicle body 1 and behind the front wheels 12, and the slotting mechanism 2 is used for digging soil;

the seed feeding mechanism comprises a primary seed feeding mechanism 3 and a secondary seed feeding mechanism 4, the secondary seed feeding mechanism 4 is arranged above the primary seed feeding mechanism 3, the primary seed feeding mechanism 3 comprises a plurality of funnels, the funnels are used for storing and conveying seeds, the secondary seed feeding mechanism 4 comprises a plurality of output ports 411 which are consistent with the funnels in number, and the output ports 411 are respectively and correspondingly input into the funnels through pipelines;

the precise seed-metering mechanism 5 is arranged between the slotting mechanism 2 and the rear wheel 13, and the precise seed-metering mechanism 5 is used for controlling the number of seeds and the plant spacing of sowing.

The invention erects the seed dibbling equipment on the vehicle body 1 capable of running, can adjust the row spacing by controlling the running speed of the vehicle body 1 and the seed dropping speed of the precision seed dibbling mechanism 5, can adjust the plant spacing by adjusting the distance between the precision seed dibbling mechanisms 5, and can control the seed dropping quantity by the precision seed dibbling mechanism 5, thereby meeting the requirements of district breeding.

The vehicle body 1 is provided with a PLC control system, the front wheel 12 and the rear wheel 13 are provided with speed measuring devices, and the speed measuring devices are electrically connected with the PLC control system;

the PLC control system is also electrically connected with the precise dibbling mechanism 5.

The PLC control system can detect the running speed of the vehicle body 1 through the speed measuring device to calculate the running distance, and then control the seed dropping speed and the seed quantity of the precise seed dropping mechanism 5 to obtain the set row spacing and the set seed quantity.

As shown in fig. 3 and 4, the slotting mechanism 2 includes:

the first driving shaft 20 is connected with the vehicle body 1 through a pair of front brackets 21, the first driving shaft 20 is also provided with a first connecting block 22 and a plurality of second connecting blocks 23, and the spacing between the plurality of second connecting blocks 23 can be adjusted;

a first driving cylinder 24, wherein the tail end of the cylinder body of the first driving cylinder 24 is hinged with the vehicle body 1, and the head end of the piston rod of the first driving cylinder 24 is hinged with a first connecting block 22 on the first driving shaft 20;

the plurality of moving brackets correspond to the positions of the plurality of second connecting blocks 23, the moving brackets further comprise L-shaped hinging blocks 25, the upper ends of the L-shaped hinging blocks 25 are connected with the second connecting blocks 23 of the first driving shafts 20 through first connecting rods 28, and the horizontal ends of the L-shaped hinging blocks 25 are connected with the vehicle body 1 through four-bar mechanisms 29;

a plurality of grooved wheels 26, each of the grooved wheels 26 being provided directly under each of the L-shaped hinge blocks 25;

a plurality of soil compacting wheels 27, each of said soil compacting wheels 27 being provided at the lower rear of each of said L-shaped hinge blocks 25.

The first driving cylinder 24 pulls the first driving shaft 20, the first driving shaft 20 drives the plurality of grooved wheels 26 connected with the first driving shaft to dig the soil into the pits, and after seeds fall into the pits, the soil pressing wheel 27 keeps up again to flatten the digged soil.

Wherein the first connecting rod 28 is a telescopic balancing cylinder. The balance cylinder keeps a certain ejection force, provides the downward force of the slotted wheel 26 enough to dig the soil, and when the slotted wheel 26 encounters hard objects or the speed of the vehicle body 1 is higher, the slotted wheel 26 can be extruded by the balance cylinder to partially retract the slotted wheel 26, so that the slotted wheel 26 is prevented from being damaged.

As shown in fig. 5 to 7, the secondary seed feeding mechanism 4 includes:

the transportation platform 41 is arranged on the vehicle body 1 through an upper bracket 42, the front end of the transportation platform 41 is provided with a plurality of output ports 411, and the plurality of output ports 411 can be staggered and directed;

the seed accommodating belts 43 are sequentially arranged and reversely buckled on the transport platform 41, the seed accommodating belts 43 are provided with a plurality of chambers 431, the chambers 431 correspond to the output ports 411, and positioning cards 432 are arranged at two ends of the seed accommodating belts 43;

a transmission mechanism 44, the transmission mechanism 44 comprising:

a pair of chain wheels 441, wherein the chain wheels 441 are respectively arranged below two ends of the transportation platform 41, and the upper edges of the chain wheels 441 are tangential to the top surface of the transportation platform 41;

a chain 442, the chain 442 is wound on the outer sides of the pair of sprockets 441, a plurality of limiting clamping grooves 4421 are arranged on the inner sides of the chain 442 at intervals, and the limiting clamping grooves 4421 are adapted to the positioning cards 432;

the sprocket drive positioning mechanism comprises a second driving cylinder 443, a second connecting rod 444, a third connecting rod 445, a locking rod 446 and a ratchet 447, wherein the tail end of the cylinder body of the second driving cylinder 443 is hinged to the middle of the side face of the upper bracket 42, the head end of the piston rod of the second driving cylinder 443 is hinged to one end of the second connecting rod 444, the other end of the second connecting rod 444 is hinged to one end of the third connecting rod 445, the other end of the third connecting rod 445 and the ratchet 447 are fixedly connected with the shaft of any sprocket 442 at the same time, one end of the locking rod 446 is hinged to the middle of the second connecting rod 444, and the other end of the locking rod 446 is provided with a locking hook which faces the ratchet 447 and is matched with the ratchet of the ratchet.

The plurality of seed accommodating belts 43 can carry planting of different varieties, and are suitable for multi-variety breeding and spaced planting in a community; the transmission mechanism 44 can accurately limit the position of the seed containing belt 43, so that the front and rear seed containing belts 43 are prevented from simultaneously facing the output port, and the confusion of seeds can be effectively prevented.

As shown in fig. 8 to 19, the precision dibbling mechanism 5 includes:

a second drive shaft 51, the second drive shaft 51 being provided on the vehicle body 1 in parallel with the first drive shaft 20;

a motor 52, the motor 52 being provided on the vehicle body 1, the motor 52 being for driving the second drive shaft 51;

a plurality of driving sprockets 53, wherein the plurality of driving sprockets 53 are uniformly distributed on the second driving shaft 51;

a plurality of precision seed metering boxes 54, a plurality of precision seed metering boxes 54 are established on the horizontal pole of automobile body 1, and a plurality of precision seed metering boxes 54's position and a plurality of the position one-to-one of drive sprocket 53 to can the distance between each other is adjusted to the overregulation, precision seed metering box 54 includes:

the box cover 541 is provided with an air outlet 5411 at the outer side of the box cover 541, the air outlet 5411 is used for connecting a vacuum pump, the vacuum pump is provided by a vacuum pump set 6 (a power source of the vacuum pump is a motor or an internal combustion engine), the inner side of the box cover 541 is provided with a plurality of concentric major arc grooves 5412, the major arc grooves 5412 are communicated with the air outlet 5411, the middle part of the box cover 541 is also provided with a transmission shaft 5413, one end of the transmission shaft 5413 extending out of the box cover 541 is provided with a driven sprocket 5414, and the driven sprocket 5414 is connected with the driving sprocket 53 through a transmission chain 56;

the rotary table 543, the rotary table 543 is disposed on the inner surface of the box cover 541, and the rotary table 543 is rotatably connected with the box cover 541 by the transmission shaft 5413, the rotary table 543 is provided with a plurality of through holes 5431, and the plurality of through holes 5431 are distributed according to the reference circle where the major arc grooves 5412 are located;

the box body 542, the inside of box body 542 is equipped with the cavity, the upper portion of box body 542 is equipped with kind inlet 5421, the lower part of box body 542 is equipped with kind outlet 5422 and recovery mouth 5423, still be equipped with baffle mechanism in the box body 542, baffle mechanism includes third actuating cylinder 5424, first baffle 5425, second baffle 5426 and fourth connecting rod 5427, third actuating cylinder 5424 establishes the upper top surface of box body 542 horizontally, the piston rod head end of third actuating cylinder 5424 with the upper end of first baffle 5425 articulates, the middle part of first baffle 5425 articulates the inboard of box body 542, the middle part of first baffle 5425 still is equipped with branch, the head end of branch with the one end of fourth connecting rod 5427 articulates, the middle part of second baffle 5426 articulates the box body 542 middle part, the one end of second baffle 5426 with the other end of fourth connecting rod 5427 articulates, the below of first baffle 5425 towards kind outlet 5422 towards the second baffle 5423.

The working principle of the precision seed-dibbling box 54: firstly, on one side of the box cover 541, an air outlet 5411 of the box cover 541 is connected with a vacuum pump to provide negative pressure, a major arc groove 5412 communicated with the air outlet 5411 is also in a negative pressure state, two ends of the major arc groove 5412 are respectively positioned above a seed outlet 5422 and a recovery port 5423 in the box body 542 as shown in fig. 14-16, and a turntable 543 is attached to the outer side surface of the major arc groove 5412 on the inner side surface of the box cover 541, so that a through hole 5431 in the range of the turntable 543 corresponding to the major arc groove 5412 has negative pressure suction, and a through hole 5431 not in the range of the major arc groove 5412 has no suction;

then, the seeds are fed into the seed inlet 5421 through the first-stage seed feeding mechanism 3, the internal turntable 543 is powered by the motor 51 to rotate clockwise (seen from the side of the box 542), and the through holes 5431 start to suck the seeds; then, by controlling the third driving cylinder 5424 to realize the linkage of the first baffle 5425 and the second baffle 5426, two states inside the case 542 are realized:

1. when the piston rod of the third driving cylinder 5424 is retracted, the first baffle 5425 is attached to the inner wall of the side surface of the box body 542, the second baffle 5426 faces the seed inlet 5421 and is matched with the seed inlet 5421 to block the seeds from falling, then the clockwise rotating turntable 543 is matched to sequentially adsorb the seeds in the seed inlet 5421 onto the through holes 5431, after the seeds adsorbed by the turntable 543 exceed the position of the major arc groove 5412, the seeds fall into the seed outlet under the influence of gravity, wherein, the number of the seeds falling into the seed outlet is controlled by the rotating speed of the turntable 543, and the number of the through holes 5431 on the sector exceeding the range of the major arc groove 5412 in unit time is determined; seeds on the turntable 543 can be adsorbed at the position of the major arc groove 5412, and seeds not at the position of the major arc groove 5412 can fall under the influence of gravity;

2. when the piston rod of the third driving cylinder 5424 extends, the first baffle 5425 extends toward the center of the case 542 to block the seed outlet 5422, the second baffle 5426 extends toward the recovery port 5423, and the first baffle 5425 and the second baffle 5426 cooperate to discharge the fallen seeds into the recovery port.

The invention controls the slotting mechanism 2 and the precision dibbling mechanism 5 according to the running speed of the vehicle body through the PLC control system, so that the dibbling activities of fixed quantity, fixed row spacing and fixed plant spacing can be realized.

Wherein, the box cover 541 is hinged with one end of the box body 542, and the other ends of the box cover 541 and the box body 542 are locked by a fastener.

The open-close type connecting structure is convenient to install and maintain, the number of fasteners used is reduced, and the workload of assembly and maintenance is reduced.

Wherein, a movable baffle 5428 is arranged below the seed inlet 5421. The removable shutter 5428 controls the amount of seeds that fall from the hopper to avoid filling the cavity in the cartridge 542.

Wherein, a seed discharging conduit 55 is arranged below the seed outlet 5422. The tail end of the seed dropping guide pipe 55 is close to the soil, so that seeds from the precision seed dropping box 54 can be prevented from being blown away by wind and falling into the excavated pit; the seed dropping guide 55 ensures the accuracy of seed dropping.

Wherein, a cloth bag is also arranged below the recovery port 5423. The sack is economical and practical, and light in weight is convenient with retrieving mouthful connection, can also retrieve unnecessary seed, avoids extravagant.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. The utility model provides a wheeled accurate volume dibbling machine for ration, fixed plant spacing, fixed row spacing seeding, its characterized in that includes:

the precise seed dibbling mechanism is arranged between the slotting mechanism and the rear wheel and is used for controlling the quantity of seeds and the plant spacing for sowing;

the vehicle body is provided with a PLC control system, the front wheel and the rear wheel are both provided with a speed measuring device, and the speed measuring device is electrically connected with the PLC control system;

the PLC control system is also electrically connected with the precise dibbling mechanism;

the slotting mechanism comprises:

a plurality of soil compacting wheels, each of which is provided at a lower rear of each of the L-shaped hinge blocks;

the precision dibbling mechanism comprises:

the driving chain wheels are uniformly distributed on the second driving shaft;

2. The wheel type precise seed dibbling machine of claim 1, wherein the first connecting rod is a telescopic balancing cylinder.

3. The wheel precision seed dibbling machine of claim 1, wherein said secondary seed feed mechanism comprises:

a transmission mechanism, the transmission mechanism comprising:

4. The wheel type precise dibbling machine of claim 1, wherein the cover is hinged with one end of the box body, and the cover is locked with the other end of the box body through a fastener.

5. The wheel type precise seed dibbling machine of claim 1, wherein a movable baffle is arranged below the seed inlet.

6. The wheel type precise seed dibbling machine of claim 1, wherein a seed discharging guide pipe is arranged below the seed outlet.

7. The wheel type precise dibbling machine of claim 1, wherein a cloth bag is further arranged below the recycling port.