CN110915369B

CN110915369B - Seeder for rice seedling raising

Info

Publication number: CN110915369B
Application number: CN201911309817.6A
Authority: CN
Inventors: 刘义生; 黄强国; 吴敬华; 汪业兵; 武盼盼; 任永保; 郭会永
Original assignee: SHUCHENG INSTITUTE OF AGRICULTURAL SCIENCES
Current assignee: SHUCHENG INSTITUTE OF AGRICULTURAL SCIENCES
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-11-06
Anticipated expiration: 2039-12-18
Also published as: CN110915369A

Abstract

The invention discloses a seeding device for rice seedling raising, which is characterized in that a hydraulic cylinder is arranged, when the seeding device for rice seedling raising needs to cover soil on seeds, the hydraulic cylinder drives a hydraulic rod to move towards one end close to the hydraulic cylinder, the hydraulic cylinder drives a soil covering rod to move, so that the soil covering rod can not cause incomplete soil covering of the rice seeds due to uneven soil in the field in the soil covering process, the defect that the seeds are directly attached to the surface of the soil and are not beneficial to the growth of the seeds because the soil covering rod of the existing seeding device is arranged in parallel with a trenching plate, the soil covering of the trenches cannot be completed in the soil covering process, the soil covering rod is vertically arranged with the trenching pipe, and the soil covering process of the soil covering rod is driven by the hydraulic cylinder, so that the soil covering rod can ensure that the rice seeds can be completely covered after being sowed, and the rice seeds are prevented from being directly exposed in, thereby greatly improving the soil covering efficiency of the rice seeds and simultaneously improving the rice seedling raising efficiency.

Description

Seeder for rice seedling raising

Technical Field

The invention relates to the field of seeding devices, in particular to a seeding device for rice seedling raising, and belongs to the technical field of application of seeding devices for rice seedling raising.

Background

Agricultural machinery refers to various machines used in the production process of crop planting and animal husbandry, as well as in the primary processing and treatment process of agricultural and animal products. The agricultural machinery comprises agricultural power machinery, farmland construction machinery, soil cultivation machinery, planting and fertilizing machinery, plant protection machinery, farmland irrigation and drainage machinery, crop harvesting machinery, agricultural product processing machinery, animal husbandry machinery, agricultural transportation machinery and the like, the seeding and seedling raising device is one of important mechanized equipment in agricultural production, the existing seeding and seedling raising device is generally driven by a tractor, the farmland is seeded through a seeding mechanism, the existing rice seedling raising is mostly carried out in a manual dibbling mode, in the manual dibbling process, the dibbling density in unit area is greatly interfered by human factors, and the rice seedling raising is not facilitated; at present, the existing rice seedling raising device is mostly provided with the ditching plate, so that when the rice seedling raising device advances through the tractor, the ditching plate ditches before seeding so as to improve the bud rate, but the soil covering rod of the existing rice seedling raising device is arranged in parallel with the ditching plate, so that the soil can not be completely covered on the groove during soil covering, seeds are directly attached to the soil surface, and the growth of the seeds is not facilitated.

Disclosure of Invention

The invention aims to provide a seeding device for rice seedling raising, which aims to solve the problems that the existing rice seedling raising is mostly carried out by a manual dibbling mode, and the dibbling density in a unit area is greatly interfered by human factors in the manual dibbling process, so that the rice seedling raising is not facilitated; at present, the existing rice seedling raising device is mostly provided with a ditching plate, so that when the rice seedling raising device advances through a tractor, the ditching plate ditches before seeding so as to improve the bud rate, but the soil covering rod of the existing rice seedling raising device is arranged in parallel with the ditching plate, so that the soil can not be completely covered on the groove during soil covering, seeds are directly attached to the soil surface, and the technical problem of being not beneficial to the growth of the seeds is solved.

The purpose of the invention can be realized by the following technical scheme:

a seeding device for rice seedling raising comprises: the seed storage device comprises a first support, a storage box for storing seeds, a seed distribution wheel which is positioned at the bottom end of the storage box and used for introducing the seeds in the storage box into a guide pipe and sowing the seeds through a sowing port, a third support which is positioned at one end of the first support and used for supporting and fixing a supporting pipe, and an earthing rod which is positioned at the bottom end of the first support and used for earthing the seeds, wherein a plurality of leading-out ports are arranged at one end of the storage box at equal intervals, a seed distribution box is arranged at one end of each leading-out port, the seed distribution boxes are fixedly connected with the storage box through bolts, supporting frames are symmetrically arranged at two ends of the storage box and are fixedly welded with the first support, a mounting plate is fixedly arranged at one end of each supporting frame through a bolt, a fixing plate is fixedly arranged at one end of each mounting, the mounting platform is fixedly connected with the mounting frame through bolts, the bottom end of the mounting platform is symmetrically provided with a second base, the second base is fixedly connected with the mounting platform through bolts, one end of the second base is movably provided with a second movable rod through a mounting hole, the second movable rod and the mounting platform are horizontally arranged, two ends of the second movable rod are symmetrically provided with a second support, the second support is fixedly connected with the second movable rod through a shaft hole, the bottom end of the second support is fixedly provided with an earthing rod through bolts, the earthing rod is vertically arranged with the second support, the lower end of the second support is horizontally provided with a cross rod for increasing the bearing capacity of the second support, the cross rod is fixedly connected with the second support through bolts, one end of the cross rod is fixedly provided with a first base through bolts, one end of the first base is fixedly provided with a first movable rod through a shaft hole, one end of the first movable rod is movably connected with a hydraulic rod through a mounting hole, one end of the hydraulic rod is movably connected with a hydraulic cylinder, and one end of the hydraulic cylinder is fixedly connected with the mounting platform through a bolt;

the one end of dividing and broadcasting the box is provided with the branch and broadcasts the wheel, and the branch is broadcast the wheel and is rotated with the back shaft through the key and be connected, and the one end of dividing and broadcasting the wheel has the baffle through round pin axle fixed mounting, baffle and back shaft welded fastening, and the both ends of back shaft are passed through the bearing and are rotated with the storage box and be connected, and the one end of back shaft runs through the storage box and outwards extend, and the one end of back shaft rotates and is connected with driving motor, and driving motor.

As a further scheme of the invention, one end of the distribution box is provided with an opening, the structure of the opening is matched with a leading-out opening arranged at one end of the storage box, the clamping block is of a U-shaped structure, the mounting frame is a square support, and the size of the mounting frame is matched with the clamping block.

As a further scheme of the invention, the bottom end of the separate sowing box is provided with a blanking port, the bottom end of the blanking port is provided with a guide box, the guide box is fixedly connected with a cross frame through a mounting hole, the cross frame is fixedly connected with a first support through a bolt, the cross frame is horizontally arranged, the bottom end of the guide box is fixedly provided with a guide pipe through a threaded hole, and the guide pipe is communicated with the guide box.

As a further scheme of the invention, the bottom end of the guide pipe is fixedly connected with the guide sleeve through the mounting hole, one end of the guide sleeve is fixedly provided with a supporting pipe through the mounting hole, the supporting pipe is communicated with the guide sleeve, and the bottom end of the guide sleeve is fixedly provided with a grooving pipe for ditching through a pin shaft.

As a further scheme of the invention, one end of the supporting tube is fixedly provided with a fixed block through a mounting hole, one end of the fixed block is fixedly welded with a mounting tube, the mounting tube is of a cylindrical structure with a hollow interior, and one end of the mounting tube is fixedly provided with a positioning shaft through the mounting hole.

As a further scheme of the invention, one end of the positioning shaft is movably provided with a fixed frame through a shaft hole, and the fixed frame is fixedly connected with the third support through a pin shaft.

As a further scheme of the invention, two ends of the first support are symmetrically provided with rotating shafts, the rotating shafts are rotatably connected with the first support through bearings, and one end of each rotating shaft is rotatably connected with the corresponding roller through a key.

As a further scheme of the invention, the storage box is of a hollow directional box body structure, a cover plate is movably arranged at the top end of the storage box through a hinge piece, and the storage box is fixedly connected with the first bracket through a bolt.

As a further scheme of the invention, one end of the first support is fixedly provided with a rib plate through a bolt, and the rib plate is provided with a plurality of shaft holes for fixing with the tractor, so that the first support is fixedly connected with the tractor through the rib plate.

The working method of the seeding device specifically comprises the following steps:

firstly, fixedly connecting a rib plate with a tractor through a fixing piece, driving a first support to move through the rib plate by the tractor, driving the first support to a field to be sowed through the tractor, and pouring rice seeds into a storage box;

secondly, starting the tractor and simultaneously starting the driving motor, wherein the driving motor drives the supporting shaft to rotate, so that the supporting shaft drives the distribution wheel to rotate, and when rice seeds fall from a plurality of outlet openings arranged at the bottom end of the storage box, the rice seeds are impacted to adjust the falling time of the rice seeds during rotation of the distribution wheel, and the rice seeds enter the guide pipe through the guide box and then fall into a field through the guide pipe;

thirdly, starting the hydraulic cylinder, driving the hydraulic rod to move towards one end close to the hydraulic cylinder by the hydraulic cylinder, driving the second support to move towards one end close to the hydraulic cylinder by the hydraulic rod through the first base, driving the soil covering rod to move by the second support, and thus enabling the soil covering rod to move towards the direction close to the ground, and enabling the soil covering rod to cover the sown rice seeds with soil;

and fourthly, after the rice seeds in the storage box are all sowed, pushing the hydraulic rod to move along one end far away from the hydraulic cylinder through the hydraulic cylinder, so that the hydraulic rod drives the second support to move towards one end far away from the hydraulic cylinder through the first base, and the second support drives the soil covering rod to rotate around the axial lead of the second movable rod, so that the soil covering rod moves towards the direction far away from the ground to complete soil covering operation.

The invention has the beneficial effects that:

1. by arranging the hydraulic cylinder, when the rice seedling raising and seeding device needs to soil seeds, the hydraulic cylinder drives the hydraulic rod to move towards one end close to the hydraulic cylinder, and the hydraulic cylinder drives the soil covering rod to move, so that the soil covering rod can not cause incomplete soil covering of the rice seeds due to uneven soil in the field in the soil covering process, thereby avoiding the defect that the soil covering rod of the existing rice seedling raising device is arranged in parallel with the ditching plate, so that the grooves can not be completely covered during soil covering, the seeds are directly attached to the surface of the soil, and the growth of the seeds is not facilitated, by vertically arranging the soil covering rod and the ditching pipe, and driving the hydraulic cylinder in the soil covering process of the soil covering rod, the soil covering rod can ensure that the rice seeds can be completely covered after seeding, the rice seeds are prevented from being directly exposed in the field, and the soil covering efficiency of the rice seeds is greatly improved, meanwhile, the rice seedling raising efficiency is also improved.

2. Through setting up the pneumatic cylinder, when the seed stops seeding, the pneumatic cylinder promotes the hydraulic stem and removes along the one end of keeping away from the pneumatic cylinder, make the hydraulic stem drive the second support through first base and remove to the one end of keeping away from the pneumatic cylinder, make the second support drive the earthing pole and rotate around the axial lead of second movable rod, thereby make the earthing pole remove to the direction of keeping away from ground, the non-operating condition of earthing pole is the state that is acute angle contained angle with vertical direction, make the earthing pole under non-operating condition, can not produce the friction with ground, thereby not only reduced the resistance that rice seedling raising seeder gos forward under the state of not seeding, also reduced the wearing and tearing of earthing pole when not seeding, thereby the life of earthing pole has been improved.

3. The one end of installation pipe has the location axle through mounting hole fixed mounting, and the one end of location axle has the mount through shaft hole movable mounting, and the mount is through round pin axle and third support fixed connection for the stay tube passes through the guide pin bushing and provides fixed stay for the pipe, makes the pipe more stable when the pipe moves along with first support at the seeding in-process, and then has improved the seeding in-process, and the stability that the rice seed fell down from the pipe, thereby has improved the seeding efficiency of rice seed.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is an overall installation schematic of the present invention.

Fig. 2 is a left side view of the overall installation of the present invention.

Fig. 3 is a schematic view of the installation of the dispensing box of the present invention.

Figure 4 is an installed elevation view of the dispensing cassette of the present invention.

Fig. 5 is a schematic view showing the installation of the soil covering rod of the present invention.

Fig. 6 is a schematic view of the installation platform of the present invention.

In the figure: 1. a first bracket; 2. a cover plate; 3. a roller; 4. a rotating shaft; 5. a rib plate; 6. a cross frame; 7. a separate sowing box; 8. a support frame; 9. mounting a plate; 10. a fixing plate; 11. a support shaft; 12. a separate sowing wheel; 13. a baffle plate; 14. a guide box; 15. a conduit; 16. supporting a tube; 17. a guide sleeve; 18. grooving a pipe; 19. a fixed block; 20. installing a pipe; 21. a fixed mount; 22. positioning the shaft; 23. a clamping block; 24. a mounting frame; 25. mounting a platform; 26. a hydraulic cylinder; 27. a hydraulic lever; 28. a first movable bar; 29. a first base; 30. a second bracket; 31. a soil covering rod; 32. a second movable bar; 33. a second base; 34. a cross bar; 35. a third support; 36. a storage box; 37. a drive motor; 38. a sowing port.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, a sowing apparatus for raising rice seedlings, comprising: the seed sowing device comprises a first support 1, a storage box 36 for storing seeds, a sowing wheel 12 which is positioned at the bottom end of the storage box 36 and used for guiding the seeds in the storage box 36 into a guide pipe 15 and sowing the seeds through a sowing port 38, a third support 35 which is positioned at one end of the first support 1 and used for supporting and fixing a supporting pipe 16, and a soil covering rod 31 which is positioned at the bottom end of the first support 1 and used for covering soil, wherein a plurality of leading-out ports are arranged at one end of the storage box 36 at equal intervals, a sowing box 7 is arranged at one end of each leading-out port, the sowing box 7 is fixedly connected with the storage box 36 through bolts, an opening is arranged at one end of the sowing box 7, the structure of the opening is matched with the leading-out port arranged at one end of the storage box 36, support frames 8 are symmetrically arranged at two ends of the storage box 36, the support frames 8 are welded and fixed, the fixing plate 10 is of an L-shaped structure, a clamping block 23 is fixedly welded at the bottom end of the fixing plate 10, the clamping block 23 is of a U-shaped structure, an installation frame 24 is fixedly installed at the top end of the clamping block 23 through bolts, the installation frame 24 is a square support, the size of the installation frame 24 is matched with that of the clamping block 23, an installation platform 25 is horizontally arranged at the top end of the installation frame 24, the installation platform 25 is fixedly connected with the installation frame 24 through bolts, second bases 33 are symmetrically arranged at the bottom end of the installation platform 25, the second bases 33 are of a U-shaped structure, the second bases 33 are fixedly connected with the installation platform 25 through bolts, a second movable rod 32 is movably installed at one end of the second bases 33 through installation holes, the second movable rod 32 is horizontally arranged with the installation platform 25, second supports 30 are symmetrically arranged at two ends of the second movable rod 32, the second supports 30 are fixedly connected with the second movable rod 32 through shaft holes, an earthing rod 31 is, the soil covering rod 31 is of a cylindrical structure, the soil covering rod 31 and the second support 30 are vertically arranged, the lower end of the second support 30 is horizontally provided with a cross rod 34 for increasing the bearing capacity of the second support 30, the cross rod 34 is fixedly connected with the second support 30 through a bolt, one end of the cross rod 34 is fixedly provided with a first base 29 through a bolt, the first base 29 is of a U-shaped structure, one end of the first base 29 is fixedly provided with a first movable rod 28 through a shaft hole, one end of the first movable rod 28 is movably connected with the hydraulic rod 27 through a mounting hole, one end of the hydraulic rod 27 is movably connected with a hydraulic cylinder 26, one end of the hydraulic cylinder 26 is fixedly connected with the mounting platform 25 through a bolt, when the rice seedling raising and sowing device needs to cover soil for seeds, the hydraulic cylinder 26 is started, the hydraulic cylinder 26 drives the hydraulic rod 27 to move towards one end close to the hydraulic cylinder 26, so that the hydraulic rod 27 drives the second support 30 to move towards one, the second bracket 30 drives the soil covering rod 31 to move, so that the soil covering rod 31 moves towards the direction close to the ground, the soil covering rod 31 covers the sown seeds, the soil covering rod 31 is driven to move by the hydraulic cylinder 26, the soil covering rod 31 cannot cause incomplete soil covering of the rice seeds due to uneven soil in the field in the soil covering process, the soil covering rod 31 is always pulled by the hydraulic rod 27 in the soil covering process, the soil covering rod 31 is more stable in the soil covering process, the soil covering rod 31 and the slotting tube 18 are vertically arranged, the soil covering rod 31 has a larger soil covering range along with soil covering, the problem that the soil covering rod of the existing rice seedling raising device is arranged in parallel with the slotting plate, the grooves cannot be completely covered during soil covering, the seeds are directly attached to the soil surface, and the seeds are not beneficial to the growth of the seeds is solved, the soil covering rod 31 and the slotting tube 18 are vertically arranged, and the soil covering process of the soil covering rod 31 is driven by the hydraulic cylinder 26, so that the soil covering rod 31 can ensure that the rice seeds can be completely covered with soil after being sowed, and the rice seeds are prevented from being directly exposed in the field, thereby greatly improving the soil covering efficiency of the rice seeds and simultaneously improving the seedling raising efficiency of the rice, by arranging the hydraulic cylinder 26, when the sowing of the seeds is stopped, the hydraulic cylinder 26 pushes the hydraulic rod 27 to move along one end far away from the hydraulic cylinder 26, so that the hydraulic rod 27 drives the second bracket 30 to move towards one end far away from the hydraulic cylinder 26 through the first base 29, so that the second bracket 30 drives the soil covering rod 31 to rotate around the axial lead of the second movable rod 32, thereby enabling the soil covering rod 31 to move towards the direction far away from the ground, the non-working state of the soil covering rod 31 is in a state of forming an acute angle with the vertical direction, and the soil covering rod 31 cannot generate friction with the, thereby not only reducing the forward resistance of the rice seedling raising and seeding device in the non-seeding state, but also reducing the abrasion of the soil covering rod 31 in the non-seeding state, and further prolonging the service life of the soil covering rod 31.

A separate sowing wheel 12 is arranged at one end of the separate sowing box 7, the separate sowing wheel 12 is rotatably connected with a supporting shaft 11 through a key, a baffle 13 is fixedly arranged at one end of the separate sowing wheel 12 through a pin shaft, the baffle 13 is welded and fixed with the supporting shaft 11, two ends of the supporting shaft 11 are rotatably connected with a storage box 36 through bearings, one end of the supporting shaft 11 penetrates through the storage box 36 and extends outwards, a driving motor 37 is rotatably connected with one end of the supporting shaft 11, the driving motor 37 is fixedly connected with the storage box 36 through bolts, when the driving motor 37 is started, the driving motor 37 drives the supporting shaft 11 to rotate, so that the supporting shaft 11 drives the separate sowing wheel 12 to rotate, when rice seeds fall from a plurality of leading-out openings arranged at the bottom end of the storage box 36, the separate sowing wheel 12 impacts the rice seeds when rotating, the falling amount of the rice seeds in unit time can be adjusted, and further the amount of, the sowing density of the rice seeds can be adjusted, and the sowing of the rice seeds is more flexible.

The bottom of the separate sowing box 7 is provided with a blanking port, the bottom of the blanking port is provided with a guide box 14, the guide box 14 is fixedly connected with a cross frame 6 through a mounting hole, the cross frame 6 is fixedly connected with a first support 1 through a bolt, the cross frame 6 is horizontally arranged, the bottom of the guide box 14 is provided with a guide pipe 15 through a threaded hole, the guide pipe 15 is communicated with the guide box 14, rice seeds fall into the guide pipe 15 through the guide box 14 from the separate sowing box 7, and sowing is further completed through the guide pipe 15.

The bottom end of the guide tube 15 is fixedly connected with a guide sleeve 17 through a mounting hole, one end of the guide sleeve 17 is fixedly provided with a support tube 16 through the mounting hole, the support tube 16 is communicated with the guide sleeve 17, and the bottom end of the guide sleeve 17 is fixedly provided with a grooving tube 18 for ditching through a pin shaft.

One end of supporting pipe 16 is passed through mounting hole fixed mounting and is had fixed block 19, the one end welded fastening of fixed block 19 has installation pipe 20, installation pipe 20 is inside hollow cylindric structure, the one end of installation pipe 20 is passed through mounting hole fixed mounting and is had location axle 22, axle hole movable mounting is passed through to the one end of location axle 22 has mount 21, mount 21 is through round pin axle and third support 35 fixed connection, make supporting pipe 16 provide the fixed stay for pipe 15 through guide pin bushing 17, make pipe 15 at the seeding in-process, it is more stable when removing along with first support 1, and then improved the seeding in-process, the stability that the rice seed fell down in pipe 15, thereby the seeding efficiency of rice seed has been improved.

The both ends symmetry of first support 1 is provided with axis of rotation 4, and axis of rotation 4 passes through the bearing to be connected with first support 1 rotation, and the one end of axis of rotation 4 is passed through the key and is connected with gyro wheel 3 rotation for when the tractor pulls first support 1, gyro wheel 3 drives first support 1 and removes.

The storage box 36 is a hollow directional box structure, the top end of the storage box 36 is movably provided with a cover plate 2 through a hinge, and the storage box 36 is fixedly connected with the first bracket 1 through a bolt.

The one end of first support 1 has gusset 5 through bolt fixed mounting, is provided with a plurality of shaft holes that are used for with the tractor is fixed on gusset 5 for first support 1 passes through gusset 5 and tractor fixed connection, thereby accomplishes the rice seeding through the first support 1 removal of tractor drive.

firstly, fixedly connecting a rib plate 5 with a tractor through a fixing piece, enabling the tractor to drive a first support 1 to move through the rib plate 5, driving the first support 1 to a field to be sowed through the tractor, and pouring rice seeds into a storage box 36;

secondly, starting the tractor, starting the driving motor 37 at the same time, driving the supporting shaft 11 to rotate by the driving motor 37, enabling the supporting shaft 11 to drive the distribution wheel 12 to rotate, and further when rice seeds fall from a plurality of outlet openings arranged at the bottom end of the storage box 36, adjusting the falling time of the rice seeds by impacting the rice seeds when the distribution wheel 12 rotates, wherein the rice seeds enter the guide pipe 15 through the guide box 14 and then fall into the field through the guide pipe 15;

thirdly, starting the hydraulic cylinder 26, driving the hydraulic rod 27 to move towards one end close to the hydraulic cylinder 26 by the hydraulic cylinder 26, driving the second bracket 30 to move towards one end close to the hydraulic cylinder 26 by the hydraulic rod 27 through the first base 29, and driving the soil covering rod 31 to move by the second bracket 30, so that the soil covering rod 31 moves towards the direction close to the ground, and the soil covering rod 31 covers the sown rice seeds;

fourthly, after all the rice seeds in the storage box 36 are sown, the hydraulic cylinder 26 pushes the hydraulic rod 27 to move along one end far away from the hydraulic cylinder 26, so that the hydraulic rod 27 drives the second support 30 to move towards one end far away from the hydraulic cylinder 26 through the first base 29, the second support 30 drives the soil covering rod 31 to rotate around the axis of the second movable rod 32, and the soil covering rod 31 moves towards the direction far away from the ground so as to finish the soil covering operation.

When the invention is used, when the rice seedling raising and seeding device needs to cover soil on seeds, the hydraulic cylinder 26 drives the hydraulic rod 27 to move towards one end close to the hydraulic cylinder 26, so that the hydraulic rod 27 drives the second bracket 30 to move towards one end close to the hydraulic cylinder 26 through the first base 29, so that the second bracket 30 drives the soil covering rod 31 to move, so that the soil covering rod 31 moves towards the direction close to the ground, so that the soil covering rod 31 covers the sown seeds, the soil covering rod 31 is driven to move through the hydraulic cylinder 26, so that the soil covering rod 31 cannot incompletely cover the soil on the rice seeds due to uneven soil in the field in the soil covering process, the soil covering rod 31 is always pulled by the hydraulic rod 27 in the soil covering process, so that the soil covering rod 31 is more stable in the soil covering process, and the soil covering rod 31 is vertically arranged with the slotting pipe 18, so that the soil covering rod 31 has a larger soil covering range along with soil covering, therefore, the defect that the soil covering rod of the conventional rice seedling raising device is arranged in parallel with the ditching plate, so that the soil cannot be completely covered on the groove during soil covering, the seeds are directly attached to the soil surface, and the growth of the seeds is not facilitated is overcome, the soil covering rod 31 is vertically arranged with the ditching pipe 18, and the soil covering process of the soil covering rod 31 is driven by the hydraulic cylinder 26, so that the soil covering rod 31 can ensure that the rice seeds can be completely covered with soil after being sowed, the rice seeds are prevented from being directly exposed in the field, the soil covering efficiency of the rice seeds is greatly improved, and the rice seedling raising efficiency is also improved; by arranging the hydraulic cylinder 26, when seeds stop sowing, the hydraulic cylinder 26 pushes the hydraulic rod 27 to move along one end far away from the hydraulic cylinder 26, so that the hydraulic rod 27 drives the second support 30 to move towards one end far away from the hydraulic cylinder 26 through the first base 29, and the second support 30 drives the soil covering rod 31 to rotate around the axis of the second movable rod 32, so that the soil covering rod 31 moves towards the direction far away from the ground, the non-working state of the soil covering rod 31 is a state forming an acute angle with the vertical direction, and the soil covering rod 31 cannot rub with the ground in the non-working state, so that the advancing resistance of the rice seedling raising and sowing device in the non-sowing state is reduced, the abrasion of the soil covering rod 31 in the non-sowing state is also reduced, and the service life of the soil covering rod 31 is prolonged; the two ends of the supporting shaft 11 are rotatably connected with the storage box 36 through bearings, one end of the supporting shaft 11 penetrates through the storage box 36 and extends outwards, one end of the supporting shaft 11 is rotatably connected with a driving motor 37, the driving motor 37 drives the supporting shaft 11 to rotate, so that the supporting shaft 11 drives the distribution wheel 12 to rotate, and further when rice seeds fall from a plurality of leading-out openings arranged at the bottom end of the storage box 36, the distribution wheel 12 impacts the rice seeds when rotating, the falling quantity of the rice seeds in unit time can be adjusted, the quantity of the rice seeds sowed in unit time in the guide pipe 15 can be adjusted, the sowing density of the rice seeds can be adjusted, and the sowing of the rice seeds is more flexible; the one end of installation pipe 20 has location axle 22 through mounting hole fixed mounting, there is mount 21 location axle 22 one end of location axle 22 through shaft hole movable mounting, mount 21 is through round pin axle and third support 35 fixed connection, make stay tube 16 provide fixed stay for pipe 15 through guide pin bushing 17, make pipe 15 in the seeding in-process, it is more stable when moving along with first support 1, and then in having improved the seeding, the stability that the rice seed fell down in the pipe 15, thereby the seeding efficiency of rice seed has been improved.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a seeder for rice seedling, its characterized in that includes: the seed sowing device comprises a first support (1), a storage box (36) for storing seeds, a sowing wheel (12) which is positioned at the bottom end of the storage box (36) and is used for introducing the seeds in the storage box (36) into a guide pipe (15) and sowing the seeds through a sowing port (38), a third support (35) which is positioned at one end of the first support (1) and is used for supporting and fixing a supporting pipe (16), and a soil covering rod (31) which is positioned at the bottom end of the first support (1) and is used for covering soil, wherein a plurality of leading-out ports are arranged at one end of the storage box (36) at equal intervals, a sowing box (7) is arranged at one end of each leading-out port, the sowing boxes (7) are fixedly connected with the storage box (36) through bolts, support frames (8) are symmetrically arranged at two ends of the storage box (36), the support frames (8) are welded and fixed with the first, one end of the mounting plate (9) is fixedly provided with a fixing plate (10) through a bolt, the bottom end of the fixing plate (10) is fixedly welded with a clamping block (23), the top end of the clamping block (23) is fixedly provided with a mounting frame (24) through a bolt, the top end of the mounting frame (24) is horizontally provided with a mounting platform (25), the mounting platform (25) is fixedly connected with the mounting frame (24) through a bolt, the bottom end of the mounting platform (25) is symmetrically provided with a second base (33), the second base (33) is fixedly connected with the mounting platform (25) through a bolt, one end of the second base (33) is movably provided with a second movable rod (32) through a mounting hole, the second movable rod (32) and the mounting platform (25) are horizontally arranged, two ends of the second movable rod (32) are symmetrically provided with second supports (30), and the second supports (30) are fixedly connected with the second movable rod (32, the bottom end of the second support (30) is fixedly provided with an earth covering rod (31) through a bolt, the earth covering rod (31) and the second support (30) are vertically arranged, the lower end of the second support (30) is horizontally provided with a cross rod (34) used for increasing the bearing capacity of the second support (30), the cross rod (34) is fixedly connected with the second support (30) through a bolt, one end of the cross rod (34) is fixedly provided with a first base (29) through a bolt, one end of the first base (29) is fixedly provided with a first movable rod (28) through a shaft hole, one end of the first movable rod (28) is movably connected with the hydraulic rod (27) through a mounting hole, one end of the hydraulic rod (27) is movably connected with a hydraulic cylinder (26), and one end of the hydraulic cylinder (26) is fixedly connected with the mounting platform (25) through a bolt;

the one end of dividing and broadcasting box (7) is provided with divides and broadcasts wheel (12), divide and broadcast wheel (12) to rotate with back shaft (11) through the key and be connected, the one end of dividing and broadcasting wheel (12) is through round pin axle fixed mounting there is baffle (13), baffle (13) and back shaft (11) welded fastening, the both ends of back shaft (11) are passed through the bearing and are rotated with storage box (36) and be connected, the one end of back shaft (11) is run through storage box (36) and outwards extends, and the one end of back shaft (11) is rotated and is connected with driving motor (37), driving motor (37) are through bolt and storage box (36) fixed connection.

2. The seeding device for rice seedling raising according to claim 1, wherein an opening is formed in one end of the separate sowing box (7), the structure of the opening is matched with a leading-out opening formed in one end of the storage box (36), the clamping block (23) is of a U-shaped structure, the mounting frame (24) is a square support, and the size of the mounting frame (24) is matched with that of the clamping block (23).

3. The seeding device for rice seedling raising according to claim 1, wherein a blanking port is formed in the bottom end of the separate seeding box (7), a guide box (14) is arranged at the bottom end of the blanking port, the guide box (14) is fixedly connected with the cross frame (6) through a mounting hole, the cross frame (6) is fixedly connected with the first support (1) through a bolt, the cross frame (6) is horizontally arranged, a guide pipe (15) is fixedly mounted at the bottom end of the guide box (14) through a threaded hole, and the guide pipe (15) is communicated with the guide box (14).

4. The seeding device for rice seedling raising according to claim 1, wherein the bottom end of the guide pipe (15) is fixedly connected with the guide sleeve (17) through a mounting hole, one end of the guide sleeve (17) is fixedly provided with a support pipe (16) through the mounting hole, the support pipe (16) is communicated with the guide sleeve (17), and the bottom end of the guide sleeve (17) is fixedly provided with a slotted pipe (18) for ditching through a pin shaft.

5. The seeding device for rice seedling raising according to claim 1, wherein a fixing block (19) is fixedly installed at one end of the supporting pipe (16) through a mounting hole, a mounting pipe (20) is fixedly welded at one end of the fixing block (19), the mounting pipe (20) is of a hollow cylindrical structure, and a positioning shaft (22) is fixedly installed at one end of the mounting pipe (20) through the mounting hole.

6. The seeding device for rice seedling raising according to claim 5, wherein a fixing frame (21) is movably installed at one end of the positioning shaft (22) through a shaft hole, and the fixing frame (21) is fixedly connected with the third support (35) through a pin shaft.

7. The seeding device for rice seedling raising according to claim 1, wherein the two ends of the first support (1) are symmetrically provided with rotating shafts (4), the rotating shafts (4) are rotatably connected with the first support (1) through bearings, and one end of each rotating shaft (4) is rotatably connected with the roller (3) through a key.

8. The seeding device for rice seedling raising according to claim 1, wherein the storage box (36) is of a square box structure with a hollow interior, a cover plate (2) is movably mounted at the top end of the storage box (36) through a hinge, and the storage box (36) is fixedly connected with the first support (1) through a bolt.

9. The sowing device for raising rice seedlings according to claim 1, wherein a rib plate (5) is fixedly mounted at one end of the first support (1) through a bolt, and a plurality of shaft holes for fixing with a tractor are formed in the rib plate (5), so that the first support (1) is fixedly connected with the tractor through the rib plate (5).

10. The sowing device for raising rice seedlings according to claim 1, wherein the working method of the sowing device specifically comprises the following steps:

firstly, fixedly connecting a rib plate (5) with a tractor through a fixing piece, enabling the tractor to drive a first support (1) to move through the rib plate (5), driving the first support (1) to a field to be sowed through the tractor, and pouring rice seeds into a storage box (36);

secondly, starting the tractor, starting the driving motor (37) at the same time, wherein the driving motor (37) drives the supporting shaft (11) to rotate, so that the supporting shaft (11) drives the distribution wheel (12) to rotate, and further when rice seeds fall from a plurality of outlet openings arranged at the bottom end of the storage box (36), the distribution wheel (12) impacts the rice seeds to adjust the falling time of the rice seeds when rotating, and the rice seeds enter the guide pipe (15) through the guide box (14) and then fall into the field through the guide pipe (15);

thirdly, the hydraulic cylinder (26) is started, the hydraulic cylinder (26) drives the hydraulic rod (27) to move towards one end close to the hydraulic cylinder (26), the hydraulic rod (27) drives the second support (30) to move towards one end close to the hydraulic cylinder (26) through the first base (29), the second support (30) drives the soil covering rod (31) to move, the soil covering rod (31) moves towards the direction close to the ground, and the soil covering rod (31) covers the sown rice seeds;

fourthly, after all the rice seeds in the storage box (36) are sowed, the hydraulic cylinder (26) is used for pushing the hydraulic rod (27) to move along one end far away from the hydraulic cylinder (26), so that the hydraulic rod (27) drives the second support (30) to move towards one end far away from the hydraulic cylinder (26) through the first base (29), the second support (30) drives the soil covering rod (31) to rotate around the axis of the second movable rod (32), and the soil covering rod (31) moves towards the direction far away from the ground so as to finish the soil covering operation.