CN112715103B - Maize precision drilling device - Google Patents
Maize precision drilling device Download PDFInfo
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- CN112715103B CN112715103B CN202011616000.6A CN202011616000A CN112715103B CN 112715103 B CN112715103 B CN 112715103B CN 202011616000 A CN202011616000 A CN 202011616000A CN 112715103 B CN112715103 B CN 112715103B
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- bevel gear
- fertilizer
- shaft
- seeding
- gear box
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/06—Seeders combined with fertilising apparatus
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/062—Devices for making drills or furrows
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/066—Devices for covering drills or furrows
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Sowing (AREA)
Abstract
The invention discloses a corn precision seeding device which comprises a main frame, a fertilizing mechanism, a seeding mechanism and a pressing mechanism, wherein the fertilizing mechanism is arranged on the main frame and comprises a fertilizer box and a fertilizer distributor, and the fertilizer distributor is arranged at the bottom of the fertilizer box. The two seeding mechanisms are symmetrically arranged on two sides of the rear part of the main frame and comprise seeding boxes and seeding devices, and the seeding devices are arranged below the seeding boxes and are connected with the rotating shafts of the fertilizer distributors through gearboxes and second transmission mechanisms. The rotating shafts of the two seed sowing devices are coaxially connected, the gearbox is arranged at the outer side of one seed sowing device, and the output end of the gearbox drives the rotating shaft of the seed sowing device to rotate. The two compacting mechanisms are respectively and correspondingly arranged at the rear sides of the two brackets and are connected with the fertilizer apparatus through the first transmission mechanism. The invention has the advantages of ingenious structural design, stable and better transmission, better transmission precision, uniform seeding plant spacing and more uniform fertilization of the spiral piece layered fertilization structure by adopting the transmission structure combining the gear and the transmission shaft, and elimination of seed and fertilizer leakage.
Description
Technical Field
The invention relates to the technical field of agricultural mechanical equipment, in particular to a corn precision seeding device.
Background
After the wheat is harvested, the corn is directly sown in the wheat stubble field by using a sowing machine. The original power transmission of the existing seeder adopts chain transmission, namely, the power of a land wheel is transmitted to a transmission shaft of a seed sowing device through a chain and then transmitted to a transmission shaft of a fertilizer distributor through the chain. Due to different conditions and different heights and densities of wheat stubbles, the sowing depth is different, the row spacing and the row spacing are not uniform, the corn sowing quality is influenced, and the corn yield is reduced. Thus, further improvements and enhancements are needed in the art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a corn precision seeding device, which solves the problems of low transmission precision, uneven seeding, more chain dropping phenomena after long-time use, seed leakage and uneven fertilization caused by unstable transmission structure of the chain of the existing seeder.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a maize precision seeding device, includes main frame, fertilizing mechanism, seeding mechanism and suppression mechanism, and the below bilateral symmetry of main frame sets up two ditching mechanisms, and ditching mechanism is including establishing fertilization shovel and the seeding shovel in both sides around the main frame respectively.
The fertilizing mechanism is arranged on the main frame and comprises a fertilizer box and a fertilizer distributor, the fertilizer box is arranged above the main frame, the fertilizer distributor is arranged at the bottom of the fertilizer box and is connected with a fertilizer distributor arranged on the fertilizing shovel through a fertilizer conveying hose.
The two seeding mechanisms are symmetrically arranged on two sides of the rear part of the main frame and comprise seeding boxes and seeding units, the seeding boxes are fixedly connected with the main frame through brackets, and the seeding units are arranged below the seeding boxes and connected with a rotating shaft of the fertilizer distributor through a gearbox and a second transmission mechanism.
The rotating shafts of the two seed sowing devices are coaxially connected, the gearbox is arranged at the outer side of one seed sowing device, and the output end of the gearbox drives the rotating shaft of the seed sowing device to rotate.
The two compacting mechanisms are respectively and correspondingly arranged at the rear sides of the two brackets and are connected with the fertilizer apparatus through the first transmission mechanism.
Furthermore, a hanging frame is arranged above the main frame, the hanging frame is positioned at the front side of the fertilizer can, and the rear end of the hanging frame is fixedly connected with the front end of the main frame into a whole.
The fertilizer box is of a box body structure with an open top, and the left side and the right side of the fertilizer box are fixedly connected with the main frame through vertical plates respectively.
The top fixed connection first shovel handle of fertilization shovel, the upper end of first shovel handle is passed through the U-shaped bolt and is fixed continuous with the front side crossbeam of main frame, and the vertical rotation roller that is equipped with in first shovel handle front side lower part rotates roller and first shovel handle normal running fit.
Further, the fertilizer distributor is fixedly connected with the bottom of the fertilizer box, two fertilizer outlets at the bottom of the fertilizer distributor are respectively connected with one fertilizer conveying hose, and a first soil covering fork is arranged on the rear side of the fertilizer distributor.
The fertilizer distributing device is provided with two fertilizer distributing devices which are respectively arranged at the rear side of the first shovel handle and comprise an outer pipe and an inner pipe, the outer pipe is fixedly connected with the rear side wall of the first shovel handle, and the upper end of the outer pipe is communicated with the fertilizer conveying hose.
The inner pipe is positioned in the outer pipe and is coaxially arranged with the outer pipe, the inner pipe and the outer pipe are connected into a whole through three sections of spiral sheets which are arranged at intervals along the axial direction of the inner pipe and the outer pipe, and the outer side of each section of spiral sheet is symmetrically provided with a square notch.
Furthermore, the front side of the bracket is fixedly connected with a rear side beam of the main frame in an adjustable manner, the seeding box is fixed at the top of the bracket, and the seed sowing device is fixed at the bottom of the bracket.
A second shovel handle is fixedly connected above the sowing shovel, the second shovel handle is a square tube, a pipe sleeve with the same structure is sleeved outside the second shovel handle, the upper end of the pipe sleeve is fixedly connected with the bracket, and the second shovel handle and the pipe sleeve are positioned through bolts.
The seed metering mouth of the seed metering device is connected with a seed conveying hose, the end part of the seed conveying hose extends into the second shovel handle, and the rear side of the second shovel handle is provided with a second soil covering fork.
Furthermore, the press mechanism comprises an H-shaped frame and a press wheel, the front end of the H-shaped frame is rotatably connected with the front part of the corresponding bracket, and the press wheel is arranged at the rear end of the H-shaped frame.
Two shock absorption mechanisms are symmetrically arranged on two sides of the H-shaped frame, and the H-shaped frame is movably connected with the corresponding bracket through the shock absorption mechanisms.
The rear side of each seed metering device is provided with a limiting rod for supporting the H-shaped frame, one end of the limiting rod is fixedly connected with the seed metering device, and the other end of the limiting rod is provided with a rubber block.
Furthermore, damper includes telescopic link and damping spring, the one end of telescopic link rotates with H shape frame and links to each other, and the other end rotates with the rear end of bracket and links to each other.
One end of the telescopic rod is fixed with a limiting block, the other end of the telescopic rod is slidably sleeved with a limiting sleeve, and the damping spring is located between the limiting block and the limiting sleeve.
Spacing sleeve deviates from spring one end and is equipped with a plurality of constant head tanks of the degree of depth difference along its circumference one side, is fixed with the locating piece with constant head tank matched with on the outer wall of telescopic link.
Furthermore, the first transmission mechanism comprises a first transmission shaft, a first bevel gear box and a second bevel gear box, wherein the number of the first transmission shafts is two, and the two first transmission shafts are respectively arranged on one side, close to each other, of the two H-shaped frames.
The rear side of the main frame is provided with two third bevel gear boxes which are oppositely arranged in tandem and connected through a first universal joint, and the third bevel gear box positioned on the front side is connected with a rotating shaft of the fertilizer distributor.
The rear end of each first transmission shaft is connected with a press wheel on the H-shaped frame through a first bevel gear box, the front end of each first transmission shaft is connected with a second bevel gear box, and the left side and the right side of a third bevel gear box positioned on the rear side are connected with the two second bevel gear boxes through second universal joints.
Furthermore, the second transmission mechanism comprises a second transmission shaft and two fourth bevel gear boxes, the second transmission shaft is positioned between the seed sowing device and the gearbox, one end of the second transmission shaft is connected with the rotating shaft of the fertilizer distributor through one fourth bevel gear box of the fourth bevel gear boxes, and the other end of the second transmission shaft is connected with the input end of the gearbox through the other fourth bevel gear box.
Furthermore, all bevel gear boxes have the same structure and comprise a shell and two bevel gears with crossed gear shafts, and the two bevel gears are arranged inside the shell.
One bevel gear shaft of the first bevel gear box is coaxially and fixedly connected with a wheel shaft of the press wheel, and the other bevel gear shaft of the first bevel gear box is fixedly connected with the rear end of the first transmission shaft.
One bevel gear shaft of the second bevel gear box is fixedly connected with the front end of the first transmission shaft, and the other bevel gear shaft of the second bevel gear box is connected with the corresponding end of one bevel gear shaft of the third bevel gear box positioned on the rear side through a second universal joint.
And the other bevel gear shaft of the third bevel gear box positioned on the rear side is connected with one bevel gear shaft of the third bevel gear box positioned on the front side through a first universal joint, and the other bevel gear shaft of the third bevel gear box positioned on the front side is coaxially connected with a rotating shaft of the fertilizer distributor into a whole.
Furthermore, the front end of the second transmission shaft is fixedly connected with one bevel gear shaft of the fourth bevel gear box positioned on the front side, and the other bevel gear shaft of the fourth bevel gear box positioned on the front side is fixedly connected with a rotating shaft of the fertilizer apparatus.
The rear end of the second transmission shaft is fixedly connected with one bevel gear shaft of the fourth bevel gear box positioned on the rear side, and the other bevel gear shaft of the fourth bevel gear box positioned on the front side is fixedly connected with the input shaft of the gearbox.
By adopting the technical scheme, the invention has the beneficial technical effects that: the invention has the advantages of ingenious structural design, stable and better transmission, better transmission precision, uniform seeding plant spacing and more uniform fertilization of the spiral piece layered fertilization structure by adopting the transmission structure combining the gear and the transmission shaft, and elimination of seed and fertilizer leakage.
Drawings
Fig. 1 is a schematic structural view of a front side view of a corn precision seeding device of the invention.
Fig. 2 is a schematic view of a portion of fig. 1, showing the ballast mechanism and the first transmission mechanism.
Fig. 3 is a structural original view of a rear side view of the corn precision seeding device of the invention.
Fig. 4 is a schematic view of the second transmission mechanism of the present invention.
Fig. 5 is a schematic structural view of another portion of fig. 1, showing a shock absorbing mechanism.
Fig. 6 is a schematic structural view of a further part of fig. 1, showing a fertilizer equalizer.
Fig. 7 is a schematic structural view of the fertilizing shovel of the present invention.
Fig. 8 is a schematic view of the structure of a first casing fork of the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
referring to fig. 1 to 8, a corn precision seeding device comprises a main frame 1, a fertilizing mechanism 2, a seeding mechanism 3 and a pressing mechanism 4, wherein a hanging frame 11 is arranged above the main frame 1, the hanging frame 11 is positioned at the front side of a fertilizer box 21, and the rear end of the hanging frame is fixedly connected with the front end of the main frame 1 into a whole. The maize precision seeding device is connected to the rear side of the tractor in a hanging mode through a hanging frame 11, and a hydraulic rod of the tractor drives the maize precision seeding device to lift. The below bilateral symmetry of main frame 1 is equipped with two ditching mechanisms, and ditching mechanism is including establishing fertilization shovel 51 and the seeding shovel 52 in the main frame 1 front and back both sides respectively, fertilization shovel 51 is the same with seeding shovel 52 structure, and the rear end both sides all have elongated shovel wing 511, and fertilization shovel 51 highly is less than seeding shovel 52's height, and the during operation, the ditching degree of depth of fertilization shovel 51 is darker than seeding shovel 52's ditching degree of depth. A first shovel handle 53 is fixedly connected above the fertilizing shovel 51, the upper end of the first shovel handle 53 is fixedly connected with a front side beam of the main frame 1 through a U-shaped bolt, a rotating roller 54 is vertically arranged on the lower portion of the front side of the first shovel handle 53, and the rotating roller 54 is in running fit with the first shovel handle 53.
The fertilizing mechanism 2 is arranged on the main frame 1 and comprises a fertilizer box 21 and a fertilizer discharger 22, the fertilizer box 21 is arranged above the main frame 1, the fertilizer box 21 is of a box structure with an open top, and the left side and the right side of the fertilizer box are fixedly connected with the main frame 1 through vertical plates 13 respectively. The fertilizer distributor 22 is arranged at the bottom of the fertilizer box 21 and is connected with a fertilizer equalizer 55 arranged on the fertilizing shovel 51 through a fertilizer conveying hose. The fertilizer distributor 22 is fixedly connected with the bottom of the fertilizer box 21, two fertilizer outlets at the bottom of the fertilizer distributor are respectively connected with one fertilizer conveying hose, a first soil covering fork 23 is arranged on the rear side of the fertilizer distributor 55, and the upper end of the first soil covering fork 23 is fixedly connected with the rear end of a first shovel handle 53 through a bolt.
The fertilizer distributor 55 is provided with two fertilizer distributors respectively arranged at the rear side of the first shovel shaft 53, and comprises an outer pipe 554 and an inner pipe 551, wherein the outer pipe 554 is fixedly connected with the rear side wall of the first shovel shaft 53, and the upper end of the outer pipe is communicated with the fertilizer conveying hose. The inner tube 551 is positioned inside the outer tube 554 and is arranged coaxially with the outer tube 554, the inner tube 551 and the outer tube are connected into a whole through three sections of spiral pieces 552 arranged at intervals along the axial direction of the outer tube, and square notches 553 are symmetrically formed in the outer side of each section of spiral piece 552. During operation, the fertilizer of fertilizer case 21 gets into even fertilizer applicator 55 through fertilizer apparatus 22 and fertilizer delivery hose, and one of them part directly falls to the bottom of ditching play through inner tube 551, and another part falls on flight 552 and through square notch 553 falls the side of ditching, guarantees that fertilizer all-round fertilization along ditching side and bottom in effective ditching degree of depth within range. After the fertilization is completed, the first soil covering fork 23 backfills the turned soil to cover the fertilizer.
The seeding mechanisms 3 are symmetrically and fixedly arranged on two sides of the rear part of the main frame 1 and comprise seeding boxes 31 and seeding devices 32, the seeding boxes 31 are fixedly connected with the main frame 1 through brackets 12, and the seeding devices 32 are arranged below the seeding boxes 31 and connected with the fertilizer apparatus 22 through a gearbox 33 and a second transmission mechanism 7. The front side of the bracket 12 is fixedly connected with the rear cross beam of the main frame 1 in an adjustable way, the seeding box 31 is fixed at the top of the bracket 12, and the seed sowing device 32 is fixed at the bottom of the bracket 12. The shafts of the two seed metering devices 32 are coaxially connected, and a gearbox 33 is arranged at the outer side of one of the seed metering devices 32, and the output end of the gearbox drives the shaft of the seed metering device 32 to rotate. The speed of rotation of the seed sowing device 32 is changed by adjusting a gearbox 33 at one side of the seed sowing device 32, and the planting distance can be adjusted.
A second shovel handle 56 is fixedly connected above the sowing shovel 52, the second shovel handle 56 is a square tube, a tube sleeve 57 with the same structure is sleeved outside the second shovel handle 56, the upper end of the tube sleeve 57 is fixedly connected with the bracket 12, and the second shovel handle 56 and the tube sleeve 57 are positioned through bolts. The seed metering mouth of the seed metering device 32 is connected with a seed conveying hose, the end part of the seed conveying hose extends into the second fork handle 56, the rear side of the second fork handle 56 is provided with a second soil covering fork, and the second soil covering fork and the first soil covering fork 23 have the same structure and the same function. The sowing shovel 52 digs the ditch again, and the chemical fertilizer cannot be turned out due to the shallow ditching depth, and after sowing is finished, the second soil covering fork backfills the turned soil to cover the seeds.
The two compacting mechanisms 4 are correspondingly arranged at the rear sides of the two brackets 12 and are connected with the rotating shaft of the fertilizer apparatus 22 through the first transmission mechanism 6. The press mechanism 4 includes an H-shaped frame 41 and a press wheel 42, the front end of the H-shaped frame 41 is rotatably connected to the front portion of the corresponding bracket 12, and the press wheel 42 is mounted at the rear end of the H-shaped frame 41. Two shock absorption mechanisms 43 are symmetrically arranged on two sides of the H-shaped frame 41, and the H-shaped frame 41 is movably connected with the corresponding bracket 12 through the shock absorption mechanisms 43. The rear side of each seed metering device 32 is provided with a limiting rod 44 for supporting the H-shaped frame 41, one end of the limiting rod 44 is fixedly connected with the seed metering device 32, and the other end is provided with a rubber block 441.
The shock absorbing mechanism 43 includes a telescopic rod 431 and a shock absorbing spring 432, and one end of the telescopic rod 431 is rotatably connected to the H-shaped frame 41 and the other end is rotatably connected to the rear end of the bracket 12. One end of the telescopic rod 431 is fixed with a limiting block 433, the other end of the telescopic rod 431 is slidably sleeved with a limiting sleeve 434, and the damping spring 432 is located between the limiting block 433 and the limiting sleeve 434. One end of the limiting sleeve 434, which is far away from the spring, is provided with a plurality of positioning grooves with different depths along one side of the circumference of the limiting sleeve, and a positioning block 435 which is matched with the positioning grooves is fixed on the outer wall of the telescopic rod 431.
The first transmission mechanism 6 includes a first transmission shaft 61, a first bevel gear box 62, and a second bevel gear box 63, and two first transmission shafts 61 are respectively provided on the sides of the two H-shaped frames 41 close to each other. The rear side of the main frame 1 is provided with two third bevel gear boxes 64, the two third bevel gear boxes 64 are arranged in a tandem and opposite arrangement and connected through a first universal joint 65, and the third bevel gear box 64 positioned on the front side is connected with a rotating shaft 221 of the fertilizer apparatus 22. The rear end of each first transmission shaft 61 is connected with the press wheel 42 on the H-shaped frame 41 through a first bevel gear box 62, the front end of each first transmission shaft is connected with a second bevel gear box 63, and the left and right sides of a third bevel gear box 64 on the rear side are connected with the two second bevel gear boxes 63 through second universal joints 66.
The second transmission mechanism 7 comprises a second transmission shaft 71 and two fourth bevel gear boxes 72, the second transmission shaft 71 is positioned between the seed sowing device 32 and the gearbox 33, one end of the second transmission shaft 71 is connected with the rotating shaft 221 of the fertilizer discharging device 22 through one fourth bevel gear box 72 of the fourth bevel gear boxes 72, and the other end is connected with the input end 331 of the gearbox 33 through the other fourth bevel gear box 72. The rotating shaft of the press wheel 42 drives the rotating shaft 221 of the fertilizer distributor 22 to rotate through the first transmission shaft 61 and the two second bevel gear boxes 63, the rotating shaft 221 of the fertilizer distributor 22 drives the input end 331 of the gear box 33 to rotate through the second transmission shaft 71, and the output end of the gear box 33 drives the seed metering device 32 to work, so that seeding is realized.
All bevel gear boxes have the same structure and comprise a shell and two bevel gears crossed with each other by a gear shaft, the two bevel gears are arranged inside the shell, and each bevel gear is provided with a gear shaft integrated with the bevel gear box.
Specifically, one bevel gear shaft of the first bevel gear box 62 is coaxially and fixedly connected with the wheel shaft of the press wheel 42, and the other bevel gear shaft thereof is fixedly connected with the rear end of the first transmission shaft 61. One bevel gear shaft of the second bevel gear box 63 is fixedly connected to the front end of the first transmission shaft 61, and the other bevel gear shaft thereof is connected to the corresponding end of one of the bevel gear shafts of the third bevel gear box 64 located on the rear side via a second universal joint 66. The other bevel gear shaft of the third bevel gear box 64 located on the rear side is connected to one bevel gear shaft of the third bevel gear box 64 located on the front side via a first universal joint 65, and the other bevel gear shaft of the third bevel gear box 64 located on the front side is coaxially connected to the rotation shaft of the fertilizer apparatus 22.
The front end of the second transmission shaft 71 is fixedly connected with one bevel gear shaft of the fourth bevel gear box 72 positioned at the front side, and the other bevel gear shaft of the fourth bevel gear box 72 positioned at the front side is fixedly connected with the rotating shaft of the fertilizer apparatus 22. The rear end of the second transmission shaft 71 is fixedly connected with one bevel gear shaft of the fourth bevel gear box 72 positioned at the rear side, and the other bevel gear shaft of the fourth bevel gear box 72 positioned at the front side is fixedly connected with the input shaft 331 of the gearbox 33.
Parts which are not described in the invention can be realized by adopting or referring to the prior art.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (9)
1. A corn precision seeding device is characterized by comprising a main frame, a fertilizing mechanism, a seeding mechanism and a pressing mechanism, wherein two ditching mechanisms are symmetrically arranged on two sides below the main frame, and each ditching mechanism comprises a fertilizing shovel and a seeding shovel which are respectively arranged on the front side and the rear side of the main frame;
the fertilizer mechanism is arranged on the main frame and comprises a fertilizer box and a fertilizer distributor, the fertilizer box is arranged above the main frame, the fertilizer distributor is arranged at the bottom of the fertilizer box and is connected with a fertilizer equalizer arranged on the fertilizing shovel through a fertilizer conveying hose;
the two seeding mechanisms are symmetrically arranged on two sides of the rear part of the main frame and comprise seeding boxes and seed sowing devices, the seeding boxes are fixedly connected with the main frame through brackets, and the seed sowing devices are arranged below the seeding boxes and are connected with the fertilizer distributor through a gearbox and a second transmission mechanism;
the rotating shafts of the two seed sowing devices are coaxially connected, the gearbox is arranged at the outer side of one seed sowing device, and the output end of the gearbox drives the rotating shaft of the seed sowing device to rotate;
the two compacting mechanisms are respectively and correspondingly arranged at the rear sides of the two brackets and are connected with a rotating shaft of the fertilizer distributor through a first transmission mechanism;
the fertilizer distributor is fixedly connected with the bottom of the fertilizer box, two fertilizer outlets at the bottom of the fertilizer distributor are respectively connected with the fertilizer conveying hose, and the rear side of the fertilizer distributor is provided with a first soil covering fork;
the two fertilizer homogenizers are respectively arranged at the rear side of the first shovel handle and comprise an outer pipe and an inner pipe, the outer pipe is fixedly connected with the rear side wall of the first shovel handle, and the upper ends of the outer pipe are communicated with the fertilizer conveying hose;
the inner pipe is positioned in the outer pipe and is coaxially arranged with the outer pipe, the inner pipe and the outer pipe are connected into a whole through three sections of spiral sheets which are arranged at intervals along the axial direction of the inner pipe and the outer pipe, and the outer side of each section of spiral sheet is symmetrically provided with a square notch.
2. The corn precision seeding device according to claim 1, wherein a hanging frame is arranged above the main frame, the hanging frame is positioned at the front side of the fertilizer box, and the rear end of the hanging frame is fixedly connected with the front end of the main frame into a whole;
the fertilizer box is of a box body structure with an open top, and the left side and the right side of the fertilizer box are fixedly connected with the main rack through vertical plates respectively;
the top fixed connection first shovel handle of fertilization shovel, the upper end of first shovel handle is passed through the U-shaped bolt and is fixed continuous with the front side crossbeam of main frame, and the vertical rotation roller that is equipped with in first shovel handle front side lower part rotates roller and first shovel handle normal running fit.
3. The corn precision seeding device according to claim 1, wherein the front side of the bracket is adjustably and fixedly connected with the rear cross beam of the main frame, the seeding box is fixed on the top of the bracket, and the seed sowing device is fixed on the bottom of the bracket;
a second shovel handle is fixedly connected above the sowing shovel, the second shovel handle is a square tube, a pipe sleeve with the same structure is sleeved outside the second shovel handle, the upper end of the pipe sleeve is fixedly connected with the bracket, and the second shovel handle and the pipe sleeve are positioned through bolts;
the seed metering mouth of the seed metering device is connected with a seed conveying hose, the end part of the seed conveying hose extends into the second shovel handle, and the rear side of the second shovel handle is provided with a second soil covering fork.
4. The corn precision seeding device according to claim 1, wherein the press mechanism comprises an H-shaped frame and a press wheel, the front end of the H-shaped frame is rotatably connected with the front part of the corresponding bracket, and the press wheel is arranged at the rear end of the H-shaped frame;
two shock absorption mechanisms are symmetrically arranged on two sides of the H-shaped frame, and the H-shaped frame is movably connected with the corresponding bracket through the shock absorption mechanisms;
the rear side of each seed sowing device is provided with a limiting rod for supporting the H-shaped frame, one end of the limiting rod is fixedly connected with the seed sowing device, and the other end of the limiting rod is provided with a rubber block.
5. The corn precision seeding device according to claim 4, wherein the damping mechanism comprises a telescopic rod and a damping spring, one end of the telescopic rod is rotatably connected with the H-shaped frame, and the other end of the telescopic rod is rotatably connected with the rear end of the bracket;
a limiting block is fixed at one end of the telescopic rod, a limiting sleeve is slidably sleeved at the other end of the telescopic rod, and the damping spring is positioned between the limiting block and the limiting sleeve;
the stop collar deviates from spring one end and is equipped with a plurality of constant head tanks of the degree of depth difference along its circumference one side, is fixed with the locating piece with constant head tank matched with on the outer wall of telescopic link.
6. The corn precision seeding device according to claim 4, wherein the first transmission mechanism comprises a first transmission shaft, a first bevel gear box and a second bevel gear box, and the number of the first transmission shafts is two, and the two first transmission shafts are respectively arranged at one side of the two H-shaped frames, which is close to each other;
the rear side of the main frame is provided with two third bevel gear boxes which are oppositely arranged in tandem and connected through a first universal joint, and the third bevel gear box positioned on the front side is connected with a rotating shaft of the fertilizer apparatus;
the rear end of each first transmission shaft is connected with a press wheel on the H-shaped frame through a first bevel gear box, the front end of each first transmission shaft is connected with a second bevel gear box, and the left side and the right side of a third bevel gear box positioned on the rear side are connected with the two second bevel gear boxes through second universal joints.
7. The corn precision seeding device according to claim 5, wherein the second transmission mechanism comprises a second transmission shaft and two fourth bevel gear boxes, the second transmission shaft is positioned between the seed sowing device and the gearbox, one end of the second transmission shaft is connected with the rotating shaft of the fertilizer distributor through one fourth bevel gear box, and the other end of the second transmission shaft is connected with the input end of the gearbox through the other fourth bevel gear box.
8. The corn precision seeding device according to claim 7, wherein all bevel gear boxes have the same structure and comprise a housing and two bevel gears with crossed gear shafts, and the two bevel gears are arranged inside the housing;
one bevel gear shaft of the first bevel gear box is coaxially and fixedly connected with a wheel shaft of the press wheel, and the other bevel gear shaft of the first bevel gear box is fixedly connected with the rear end of the first transmission shaft;
one bevel gear shaft of the second bevel gear box is fixedly connected with the front end of the first transmission shaft, and the other bevel gear shaft of the second bevel gear box is connected with the corresponding end of one bevel gear shaft of the third bevel gear box positioned on the rear side through a second universal joint;
and the other bevel gear shaft of the third bevel gear box positioned on the rear side is connected with one bevel gear shaft of the third bevel gear box positioned on the front side through a first universal joint, and the other bevel gear shaft of the third bevel gear box positioned on the front side is coaxially connected with a rotating shaft of the fertilizer distributor into a whole.
9. The corn precision seeding device according to claim 8, wherein the front end of the second transmission shaft is fixedly connected with one bevel gear shaft of the fourth bevel gear box positioned at the front side, and the other bevel gear shaft of the fourth bevel gear box positioned at the front side is fixedly connected with the rotating shaft of the fertilizer discharger;
the rear end of the second transmission shaft is fixedly connected with one bevel gear shaft of the fourth bevel gear box positioned on the rear side, and the other bevel gear shaft of the fourth bevel gear box positioned on the front side is fixedly connected with the input shaft of the gearbox.
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