CN114223356B

CN114223356B - Forced seed throwing experimental device

Info

Publication number: CN114223356B
Application number: CN202111521552.3A
Authority: CN
Inventors: 谢伟; 王潇; 陈恩熙; 陈启韬; 孟德鑫
Original assignee: Hunan Agricultural University
Current assignee: Hunan Agricultural University
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2023-07-25
Anticipated expiration: 2041-12-13
Also published as: CN114223356A

Abstract

The invention discloses a forced seed throwing experimental device which comprises a frame body, a forced seed throwing rod, a telescopic driving piece and an inoculation pipe, wherein the forced seed throwing rod, the telescopic driving piece and the inoculation pipe are arranged on the frame body, a seed discharging opening is arranged at the bottom of the inoculation pipe, an inoculation opening is arranged above the seed discharging opening, one end of the forced seed throwing rod is connected with the telescopic end of the telescopic driving piece, and the other end of the forced seed throwing rod is connected with the seed discharging opening in a sliding manner so as to push seeds in the inoculation pipe downwards into a seed bed. According to the invention, after seeds fall into the inoculation pipe, the forced seed feeding rod is driven by the telescopic driving piece to forcedly push the seeds into the seed bed, so that the seeds can be accurately planted into soil with a preset depth and a preset position, the situation that the existing seeds bounce to cause ectopic after being planted is completely avoided, a foundation is laid for experimental study of precise sowing, the phenomenon that the seeds block a seed discharging port is avoided by forcedly pushing the seeds out of the inoculation pipe, and an experimental foundation is provided for production of actual forced seed feeding devices of different crops.

Description

Forced seed throwing experimental device

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a strong seed throwing experimental device.

Background

The precision seeding is a mode of seeding seeds into soil according to precise grain number, plant spacing, line spacing and depth, provides good conditions for seed germination, full utilization of light, water, fertilizer and gas and balanced development of individuals and groups, can save seeds and eliminate thinning procedures, and is an advanced form of hill seeding. The core of the precision seeding technology is that seeds are uniformly distributed and the depth of seeding is stable, the seedling rate of the seeds is improved, the precision seeding can be realized by single-seed precision seeding, more than one seed can be sowed into one hole, and the number of seeds in each hole is required to be equal. Compared with the common drill sowing, the seeds of the precision sowing are uniformly distributed in the rows, thereby being beneficial to the growth of crops, improving the yield and becoming the development trend of the mechanized planting of the crops.

Various hole sowing seed metering devices in the market at present fall into a seed bed along a seed guide pipe by the dead weight of seeds from a seed discharging port after the seeds are discharged, and then a proper amount of fine wet soil is covered and pressed properly. However, since the seed is dropped from the seed guide tube, the initial speed causes the dislocation due to the bouncing on the seed bed at the moment of implantation, which affects the uniformity of the sowing grain distance, and the precision sowing is difficult to realize. Furthermore, as the machine tool generates vibration when in field operation and some seed guide pipes are not perpendicular to the seed bed, seeds rub along the walls of the seed guide pipes, so that the seeds are easy to miss-sowed or uneven to be sowed after being discharged by the hill-drop seed metering device, even the phenomenon that the seeds are blocked at the seed discharge port occurs, and the sowing quality is seriously affected. Meanwhile, in the experimental research process, parameters of the existing seeding device cannot be changed in the experimental process, but when different crop experiments are carried out, different experimental devices are required to be manufactured due to different sizes of crop seeds, sowing depth and plant spacing required by agriculture and the like, so that not only is the experimental cost increased, but also different experimental devices are required to be used when different experiments are carried out, and the use efficiency of the experimental sites is also improved.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a strong seed feeding experimental device.

In order to solve the technical problems, the invention discloses a forced seed throwing experimental device which comprises a frame body, a forced seed throwing rod, a telescopic driving piece and an inoculation pipe, wherein the forced seed throwing rod, the telescopic driving piece and the inoculation pipe are arranged on the frame body, a seed discharging port is arranged at the bottom of the inoculation pipe, an inoculation port is arranged above the seed discharging port, one end of the forced seed throwing rod is connected with the telescopic end of the telescopic driving piece, and the other end of the forced seed throwing rod is connected with the inoculation pipe in a sliding way so as to push seeds in the inoculation pipe downwards into different depths of a seed bed.

Further, a bottom cover and an elastic member for driving the bottom cover to keep the trend of sealing the seed discharging port are installed at the bottom of the inoculation pipe, and one end of the bottom cover is hinged with one side of the inoculation port.

Further, the elastic element is a sealing spring, the lower end of the sealing spring is connected with the bottom cover, and the upper end of the sealing spring is connected with the side wall of the inoculation pipe.

Further, the telescopic driving piece comprises a crank, a driving connecting rod and an adjusting connecting rod, one end of the adjusting connecting rod is hinged with the forced seed feeding rod, the other end of the adjusting connecting rod is hinged with one end, deviating from the rotation center, of the crank, one end of the adjusting connecting rod is hinged with the frame body, and the other end of the adjusting connecting rod is hinged with the middle of the driving connecting rod.

Further, an adjusting groove is formed in the middle of the driving connecting rod, a sliding rod is mounted on the frame body, and one end of the adjusting connecting rod adjusts the telescopic stroke of the forced seed feeding rod by adjusting the position connected with the sliding rod.

Further, one end of the adjusting connecting rod is hinged with a screw sleeve, the sliding rod is a screw rod, two ends of the screw rod are hinged with the frame body, the screw sleeve is matched with the screw rod, and one end of the screw rod is provided with a rotary driving piece for driving the screw rod to rotate.

Further, the rotary driving piece is an adjusting hand wheel which is manually adjusted.

Further, the forced seed feeding rod is provided with a counter bore for containing the seeds to be fed to the seed bed, and the bottom of the counter bore is of an arc-shaped surface structure.

Further, a slide rail frame, a seed sowing device seed sowing cup, a movable seed cup and a reciprocating driving piece are arranged on one side of the inoculation pipe, a seed sowing device connector is arranged at the upper end of the seed sowing device seed sowing cup, a discharge outlet is arranged at the bottom of the seed sowing device seed sowing cup, the movable seed cup is in sliding connection with the slide rail frame, and a driving end of the reciprocating driving piece is connected with the movable seed cup to drive the movable seed cup to be communicated with the discharge outlet and the inoculation outlet in a reciprocating intermittent mode.

Further, a movable seed cup bottom cover is hinged to the lower side of the movable seed cup, a cup cover baffle is fixedly connected to the lower side of the discharge port of the sliding rail frame, and when the movable seed cup moves towards the discharge port, the cup cover baffle extrudes the movable seed cup bottom cover to close the bottom opening of the movable seed cup.

Further, the reciprocating driving part is a synchronous rod which is in synchronous telescopic motion with the forced seed feeding rod, one side of the movable seed cup is fixedly connected with a pushing distance driven wedge block and a return driven wedge block, and the lower end of the synchronous rod is provided with a pushing distance driving wedge block for driving the movable seed cup to be far away from the inoculation pipe and a return driving wedge block for driving the movable seed cup to be close to the inoculation pipe.

Compared with the prior art, the invention has the advantages that:

according to the invention, after seeds fall into the inoculation pipe, the forced seed feeding rod is driven by the telescopic driving piece to forcedly push the seeds into the seed bed, so that the seeds can be accurately planted into soil with a preset depth and a preset position, the situation that the existing seeds bounce to cause ectopic after implantation is completely avoided, a foundation is laid for experimental study of precise sowing, and the phenomenon that the seeds block a seed discharging port is avoided by forcedly pushing the seeds out of the inoculation pipe; meanwhile, the strong seeding experiment device can realize adjustment aiming at the different sizes of crop seeds, sowing depth, plant spacing and the like required by agriculture, meets the sowing requirements of different crops, and further provides an experiment foundation for the production of the actual strong seeding device of different crops. Furthermore, by pushing the seeds to the preset depth of the seed bed, the growth condition of the seeds is also improved, and the sowing quality is improved, so that the process further advances to fine tillage.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 is a first axial schematic diagram of a forced seeding experimental device according to an embodiment of the present invention;

FIG. 2 is a second axial schematic diagram of the forced seeding experimental apparatus according to the embodiment of the present invention;

fig. 3 is a schematic front view of a forced seeding experiment device according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of FIG. 3 at A;

fig. 5 is a schematic installation diagram of a forced seeding rod and a synchronizing rod according to an embodiment of the present invention.

Legend description:

1. a frame body; 2. a forced seed feeding rod; 21. countersink; 3. a telescopic driving member; 31. a crank; 32. a drive link; 321. an adjustment tank; 33. adjusting the connecting rod; 34. a slide bar; 35. an adjusting hand wheel; 36. a screw sleeve; 4. an inoculation tube; 41. a seed metering port; 42. an inoculation port; 5. a bottom cover; 6. a seal spring; 7. a seed cup of a seed sowing device; 71. a seeding device connecting port; 72. a discharge port; 8. a synchronizing lever; 81. pushing the driving wedge block; 82. a return driving wedge block; 9. moving the seed cup; 91. pushing the driven wedge block; 92. a return driven wedge; 93. moving the bottom cover of the seed cup; 10. a slide rail frame; 11. a baffle plate of the cup cover.

Detailed Description

The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the invention, but the scope of the invention is not limited to the specific embodiments shown.

As shown in fig. 1-5, the embodiment of the invention discloses a strong seed throwing experimental device, which comprises a frame body 1, a forced seed throwing rod 2, a telescopic driving piece 3 and an inoculation pipe 4, wherein the forced seed throwing rod 2, the telescopic driving piece 3 and the inoculation pipe 4 are arranged on the frame body 1, the frame body 1 can be arranged on seeder equipment, a seed discharging port 41 is arranged at the bottom of the inoculation pipe 4, an inoculation port 42 is arranged above the seed discharging port 41 and is used for intermittently inputting seeds, one end of the forced seed throwing rod 2 is connected with the telescopic end of the telescopic driving piece 3, and the other end of the forced seed throwing rod is connected with the seed discharging port 41 in a sliding manner so as to push the seeds in the inoculation pipe 4 into a seed bed. The inoculating tube 4 is of a frustum-shaped structure with a large upper part and a small lower part, the gap between the seed discharging opening 41 and the forced seed feeding rod 2 is extremely small, so that the forced seed feeding rod 2 is prevented from crushing seeds at the seed discharging opening 41, after the seeds fall into the inoculating tube 4, the forced seed feeding rod 2 is driven by the telescopic driving piece 3 to forcedly push the seeds into different depths in a seed bed, so that the seeds can be accurately planted into soil with preset depths and preset positions, the situation that the existing seeds are bounced to cause ectopic after implantation is completely avoided, a foundation is laid for tight sowing, the phenomenon that the seeds block the seed discharging opening 41 is also avoided by forcedly pushing the seeds out of the inoculating tube 4, further, the growth condition of the seeds is improved by pushing the seeds to the preset depth, the sowing quality is improved, the foundation is laid for experimental study of precise sowing, meanwhile, the forced seed feeding experimental device can realize the adjustment of different sowing requirements of different crops according to the sizes of the seeds of crops, the sowing depth required by agriculture, the size and the like, and further the experimental experiment requirement for the production of the actual forced seed feeding device of different crops is provided.

In the present embodiment, the bottom of the inoculation pipe 4 is mounted with a bottom cap 5 and an elastic member for driving the bottom cap 5 to keep the tendency of sealing the seed discharging port 41, and one end of the bottom cap 5 is hinged with one side of the inoculation port 42. Specifically, the elastic element is a sealing spring 6, the lower end of the sealing spring 6 is connected with the edge of the middle part of the bottom cover 5, and the upper end of the sealing spring is connected with the outer side wall of the inoculation pipe 4, so that when seeds fall into the inoculation pipe 4, the seeds fall on the upper side surface of the bottom cover 5, then the seed feeding rod 2 is forced to move downwards, and the bottom cover 5 is further pushed up to forcedly push the seeds into a seed bed for sowing, and at the moment, the sealing spring 6 is in a pulled-up state. When the forced seed feeding rod 2 is retracted upwards, the bottom cover 5 automatically closes the inoculation opening 42 under the action of the elastic tension of the sealing spring 6, so as to prepare for the next seed entering the inoculation pipe 4.

In this embodiment, the telescopic driving piece 3 includes a crank 31, a driving link 32 and an adjusting link 33, the crank 31 is externally connected with rotary power, one end of the adjusting link 33 is hinged with the forced seed feeding rod 2, the other end is hinged with one end of the crank 31 deviating from the rotation center, one end of the adjusting link 33 is hinged with the frame 1, and the other end is hinged with the middle part of the driving link 32, so that intermittent forced seeding of the forced seed feeding rod 2 is realized, and in order to further adjust the motion characteristic of the forced seed feeding rod 2, the driving link 32 can adopt various rod hinged modes.

In this embodiment, the middle part of the driving connecting rod 32 is provided with an adjusting groove 321, the adjusting groove 321 is an arc groove, the frame body 1 is provided with a slide bar 34, one end of the adjusting connecting rod 33 is connected with the slide bar 34 through adjustment, and then the other end of the adjusting connecting rod moves along the adjusting groove 321, so that the telescopic travel of the forced seed feeding rod 2 is adjusted, the pressing depth of the forced seed feeding rod 2 is adjustable, the seed sowing depth adjustment is finally realized, the optimal sowing depth of different types of seeds is adapted, and the application range of the device is improved.

In this embodiment, one end of the adjusting link 33 is hinged with a threaded sleeve 36, the slide bar 34 is a threaded rod with two ends hinged with the frame body 1, the threaded sleeve 36 is matched with the threaded rod, one end of the threaded rod is provided with a rotary driving piece for driving the threaded rod to rotate, specifically, the rotary driving piece is an adjusting hand wheel 35 which is manually adjusted, and the position where one end of the adjusting link 33 is connected with the slide bar 34 is realized by rotating the adjusting hand wheel 35, so that the sowing depth of the forced seed feeding rod 2 can be adjusted, and the method is simple, practical and high in reliability.

In the embodiment, the forced seed feeding rod 2 is provided with a counter bore 21 for forcedly feeding seeds to a seed bed after the seeds are wrapped, and the bottom of the counter bore 21 is of an arc-shaped surface structure, such as a spherical surface structure, so that the seeds can be prevented from being separated from the tail end of the forced seed feeding rod 2 by external force, and the accuracy and the reliability of forced seed feeding are further ensured.

In this embodiment, referring to fig. 4, a slide rail frame 10, a seed sowing device seed sowing cup 7, a moving seed cup 9 and a reciprocating driving member are installed on one side of the inoculation pipe 4, a seed sowing device connector 71 is provided at the upper end of the seed sowing device seed sowing cup 7, the seed sowing device seed sowing cup 7 is fixedly installed and used for being connected with a seeder of the seeder, a discharge outlet 72 is provided at the bottom, the moving seed cup 9 is slidingly connected with the slide rail frame 10, the driving end of the reciprocating driving member is connected with the moving seed cup 9 to drive the moving seed cup 9 to be in reciprocating intermittent communication with the discharge outlet 72 and the inoculation outlet 42, specifically, when the moving seed cup 9 moves to the discharge outlet 72, seeds in the seed sowing device seed sowing cup 7 can fall into the moving seed cup 9, when the reciprocating driving member drives the seeds in the seed sowing device seed sowing cup to move to the end of the inoculation pipe 4, the seeds in the seed sowing cup can fall into the inoculation pipe 4, and then when the seeds are moved to the discharge outlet 72 again, the seeds can be forced to move downwards to perform forced seed sowing. The lower side of the movable seed cup 9 is hinged with a movable seed cup bottom cover 93, the sliding rail frame 10 is fixedly connected with a cup cover baffle 11 at the lower side of the discharge port 72, when the movable seed cup 9 moves towards the discharge port 72, the cup cover baffle 11 extrudes the movable seed cup bottom cover 93 to close the bottom opening of the movable seed cup 9, so that seeds can be placed on the movable seed cup bottom cover 93 in the moving process of the movable seed cup 9, abrasion is prevented, when the movable seed cup bottom cover 93 moves to leave the cup cover baffle 11, the movable seed cup bottom cover 93 can be opened under the action of gravity, and at the moment, the bottom opening of the movable seed cup 9 just faces the inoculation port 42. The reciprocating driving part is a synchronous rod 8 which is in synchronous telescopic motion with the forced seed throwing rod 2, one side of the movable seed cup 9 is fixedly connected with a pushing distance driven wedge block 91 and a return driven wedge block 92, the lower end of the synchronous rod 8 is provided with a pushing distance driving wedge block 81 for driving the movable seed cup 9 to be far away from the inoculation pipe 4 and a return driving wedge block 82 for driving the movable seed cup 9 to be close to the inoculation pipe 4, when the forced seed throwing rod 2 moves downwards, the pushing distance driving wedge block 81 drives the pushing distance driven wedge block 91 to convert vertical motion into horizontal motion, so that the pushing distance driven wedge block 91 drives the movable seed cup 9 to be far away from the inoculation pipe 4, when the forced seed throwing rod 2 moves upwards, the return driving wedge block 82 drives the return driven wedge block 92, so that the movable seed cup 9 is driven to move towards the inoculation pipe 4 for seed sowing, a plurality of actions are realized through one power input, and interference of the movable seed cup 9 and the forced seed throwing rod 2 is avoided.

While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. The forced seed throwing experimental device is characterized by comprising a frame body (1), a forced seed throwing rod (2), a telescopic driving piece (3) and an inoculation pipe (4), wherein the forced seed throwing rod is arranged on the frame body (1), a seed discharging port (41) is arranged at the bottom of the inoculation pipe (4), an inoculation port (42) is arranged above the seed discharging port (41), one end of the forced seed throwing rod (2) is connected with the telescopic end of the telescopic driving piece (3), and the other end of the forced seed throwing rod is connected with the seed discharging port (41) in a sliding manner so as to push seeds in the inoculation pipe (4) downwards into different depths of a seed bed; the telescopic driving piece (3) comprises a crank (31), a driving connecting rod (32) and an adjusting connecting rod (33), one end of the adjusting connecting rod (33) is hinged with the forced seed feeding rod (2), the other end of the adjusting connecting rod is hinged with one end, deviating from the rotation center, of the crank (31), one end of the adjusting connecting rod (33) is hinged with the frame body (1), and the other end of the adjusting connecting rod is hinged with the middle part of the driving connecting rod (32); an adjusting groove (321) is formed in the middle of the driving connecting rod (32), a slide rod (34) is arranged on the frame body (1), and one end of the adjusting connecting rod (33) adjusts the telescopic stroke of the forced seed feeding rod (2) by adjusting the position connected with the slide rod (34); one end of the adjusting connecting rod (33) is hinged with a screw sleeve (36), the sliding rod (34) is a screw rod with two ends hinged with the frame body (1), the screw sleeve (36) is matched with the screw rod, and one end of the screw rod is provided with a rotary driving piece for driving the screw rod to rotate; a slide rail frame (10), a seed sowing device seed sowing cup (7), a movable seed cup (9) and a reciprocating driving piece are arranged on one side of the inoculation pipe (4), a seed sowing device connector (71) is arranged at the upper end of the seed sowing device seed sowing cup (7), a discharge outlet (72) is arranged at the bottom of the seed sowing device seed sowing cup, the movable seed cup (9) is in sliding connection with the slide rail frame (10), and a driving end of the reciprocating driving piece is connected with the movable seed cup (9) to drive the movable seed cup (9) to be communicated with the discharge outlet (72) and the inoculation outlet (42) in a reciprocating intermittent mode; the reciprocating driving piece is a synchronous rod (8) which moves in a synchronous telescopic way with the forced seed feeding rod (2), one side of the movable seed cup (9) is fixedly connected with a pushing distance driven wedge block (91) and a return driven wedge block (92), and the lower end of the synchronous rod (8) is provided with a pushing distance driving wedge block (81) for driving the movable seed cup (9) to be far away from the inoculation pipe (4) and a return driving wedge block (82) for driving the movable seed cup (9) to be close to the inoculation pipe (4).

2. The forced seeding experiment device according to claim 1, wherein a bottom cover (5) and an elastic member for driving the bottom cover (5) to keep the trend of sealing the seed discharging port (41) are installed at the bottom of the inoculating tube (4), and one end of the bottom cover (5) is hinged with one side of the inoculating port (42).

3. The forced seeding experiment device according to claim 2, wherein the elastic element is a sealing spring (6), the lower end of the sealing spring (6) is connected with the bottom cover (5), and the upper end is connected with the side wall of the inoculating tube (4).

4. The forced seeding experiment device according to claim 1, wherein the rotary driving member is an adjusting hand wheel (35) which is manually adjusted.

5. The forced seeding experiment device according to any one of claims 1-4, wherein the forced seeding rod (2) is provided with a counter bore (21) for containing seeds and then forcibly seeding the seeds to a seed bed, and the bottom of the counter bore (21) is of an arc-shaped surface structure.

6. The forced seeding experiment device according to claim 1, wherein a movable seed cup bottom cover (93) is hinged to the lower side of the movable seed cup (9), a cup cover baffle (11) is fixedly connected to the lower side of the sliding rail frame (10) located at the outlet (72), and when the movable seed cup (9) moves towards the outlet (72), the cup cover baffle (11) extrudes the movable seed cup bottom cover (93) to close the bottom opening of the movable seed cup (9).