CN114158326B - Corn seeding row number adjusting device and using method thereof - Google Patents
Corn seeding row number adjusting device and using method thereof Download PDFInfo
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- CN114158326B CN114158326B CN202111517006.2A CN202111517006A CN114158326B CN 114158326 B CN114158326 B CN 114158326B CN 202111517006 A CN202111517006 A CN 202111517006A CN 114158326 B CN114158326 B CN 114158326B
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- swing arm
- driving
- seeding
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/18—Machines for depositing quantities of seed at intervals
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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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- 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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Abstract
The invention relates to a corn seeding row number adjusting device and a using method thereof, and the corn seeding row number adjusting device comprises a fixed frame and a plurality of seeding units which are arranged side by side, wherein a transverse connecting beam is fixedly connected to the rear part of the fixed frame, the seeding units are arranged on the connecting beam through connecting adjusting mechanisms, and the row number adjusting device also comprises a row spacing adjusting mechanism for adjusting the spacing between adjacent sliding connecting sleeves. The invention can adapt to the seeding fields with various widths by connecting the adjusting mechanism and the row spacing adjusting mechanism, and provides different seeding rows and row spacings.
Description
Technical Field
The invention relates to the field of agricultural machinery, in particular to the field of seeding machinery, and specifically relates to a corn seeding line number adjusting device and a use method thereof.
Background
Corn drill carries out the operation according to the inherent line number of seeder when carrying out the seeding operation, if say that corn drill is 3 lines (also be 3 seeding units in the back area), can sow 3 lines at every turn, when the seed of sowing finishes soon, the surplus piece of land can not sow 3 lines, can only sow 1 line or sow 2 lines, the adjustment of the seeding line number can't be realized to current seeder.
And the row spacing of current seeder is fixed, can't adjust the row spacing according to on-the-spot actual need.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a corn seeding line number adjusting device capable of adjusting the seeding line number and the seeding distance and a using method thereof.
The invention is realized by the following technical scheme, and provides a corn seeding line number adjusting device, which comprises a fixed frame and a plurality of seeding units arranged side by side, wherein a transverse connecting beam is fixedly connected at the rear part of the fixed frame, the seeding units are arranged on the connecting beam through a connecting adjusting mechanism, the connecting adjusting mechanism comprises a sliding connecting sleeve sleeved on the connecting beam and a unit connecting plate fixedly connected with the seeding units, the unit connecting plate is positioned at the rear part of the sliding connecting sleeve, the connecting adjusting mechanism also comprises an upper swinging arm and a lower swinging arm which are arranged up and down and in parallel, the front end of the upper swinging arm and the front end of the lower swinging arm are both hinged with the sliding connecting sleeve, the rear end of the upper swinging arm and the rear end of the lower swinging arm are both hinged with the unit connecting plate, the connecting adjusting mechanism also comprises a lifting rod, a tension spring, a sliding block which is connected on the upper swinging arm in a sliding way, and an adjusting oil cylinder which drives the sliding block to slide along the length direction of the upper swinging arm, the one end and the sliding block of extension spring are connected, and the other end of extension spring is connected at swing arm front end down, the lower extreme and the swing arm rear end hinge of lifting rod, it has spacing slot hole to open on the lifting rod, the rigid coupling has the plug-in spindle that inserts in the spacing slot hole on the sliding block, line number adjusting device is still including adjusting the line spacing adjustment mechanism of interval between the adjacent slip adapter sleeve.
In the scheme, the upper swing arm and the lower swing arm form a parallelogram, so that the seeding unit fixedly connected on the unit connecting plate can swing up and down, one end of the tension spring is connected with the sliding block, and the other end of the tension spring is connected with the front end of the lower swing arm, so that the upper swing arm is pulled downwards through the tension spring, and the seeding unit is pressed downwards in soil to realize operations such as ditching and the like; through adjustment hydro-cylinder drive sliding block along last swing arm length direction slip, thereby adjust the length of extension spring, play the effect of regulation closing force, can adapt to the requirement of different soil hardness and depth of planting, when the sliding block moved forward the certain distance, the axle that inserts moves to the spacing slot hole tip of lifting rod, the sliding block continues to move forward, the upper end through the sliding block drive lifting rod moves forward, thereby swing arm rear end rebound under the lower extreme drive through lifting rod, thereby upwards mention the seeding unit on the unit connection board, make this seeding unit break away from ground, every connection guiding mechanism can the independent action, thereby can adjust the work quantity of seeding unit, the adjustment seeding line number. The row spacing adjustment mechanism can adjust the spacing between adjacent sliding connection sleeves, thereby adjusting the spacing of the sowing units, changing the row spacing of sowing and adapting to the width of the sowing area.
As optimization, the front end of the adjusting oil cylinder is hinged to the front end of the upper swing arm, the front end of the sliding block is provided with an avoiding groove for accommodating the insertion of the adjusting oil cylinder, and the rear end of the adjusting oil cylinder is fixedly connected to the bottom of the avoiding groove. The front end of the adjusting oil cylinder is hinged to the front end of the upper swing arm, so that the adjusting oil cylinder is mounted on the upper swing arm and swings up and down along with the upper swing arm, and the up-and-down swing of the upper swing arm cannot influence the adjusting oil cylinder.
Preferably, the upper swing arm is provided with a guide long hole extending along the length direction, and the insertion shaft is inserted into the guide long hole. The axle of inserting in this scheme inserts in the direction slot hole to can realize the sliding block and the sliding connection of last swing arm through inserting the axle.
As an optimization, the line spacing adjusting mechanism comprises two rotating shafts which are connected to the connecting beam in a shaft-to-shaft mode and are arranged side by side up and down and a rotating shaft driving mechanism which drives the two rotating shafts to rotate synchronously and reversely, a shifting rod which extends along the radial direction of the rotating shaft is fixedly connected to the circumferential surface of the rotating shaft, a driving long hole in which the shifting rod is inserted is formed in the side surface of the sliding connecting sleeve, the driving long holes corresponding to the two shifting rods are arranged on the same sliding connecting sleeve in an up-and-down symmetrical mode, the driving long holes are arranged in an inclined mode, and included angles between the driving long holes and the horizontal plane on different sliding connecting sleeves are gradually decreased along the length direction of the connecting beam.
The synchronous antiport of two pivots of pivot actuating mechanism drive in this scheme, the driving lever inserts in the drive slot hole of slope, through the driving lever luffing motion, can drive sliding connection cover along the length direction slip of tie-beam, because set up two drive slot holes and the drive slot hole longitudinal symmetry setting that two driving levers correspond on a sliding connection cover, thereby make sliding connection cover two driving levers act on the slip that drives sliding connection cover simultaneously, two driving lever up-and-down motion simultaneously, the component force of effect about having offset, avoid single driving lever effect to lead to the component force to make sliding connection cover compress tightly on the tie-beam.
Because the contained angle of drive slot hole and horizontal plane is less, the displacement of sliding connection cover is big more when the driving lever rotates certain angle, and the contained angle of drive slot hole and horizontal plane is steadilyd decrease in proper order along the length direction of tie-beam on different sliding connection sheathes in this scheme to sliding connection cover increases progressively in proper order for the displacement distance of tie-beam one end when making the pivot rotate, thereby realizes adjusting the interval between the adjacent sliding connection cover.
Preferably, the rotating shaft driving mechanism comprises a driving gear fixedly connected to the rotating shaft, a rack slidably connected to the connecting beam and a driving oil cylinder for driving the rack to move along the length direction, the driving gears on the two rotating shafts are meshed with each other, and the driving rack is meshed with any one of the driving gears. The driving oil cylinder in the scheme drives the rack to slide, so that any one driving gear is driven to rotate through the rack, and two rotating shafts synchronously and reversely rotate through the meshing of the two driving gears.
Preferably, the connecting beam is a C-shaped beam, the driving long hole is formed in one side, away from the opening of the C-shaped beam, of the sliding connecting sleeve, and the rotating shaft is arranged inside the C-shaped beam. The pivot setting is inside C type roof beam in this scheme, plays the guard action to pivot and epaxial spare part, the installation of spare parts such as the pivot of being convenient for simultaneously.
Preferably, the upper end face of the connecting beam is provided with a guide plate mounting groove, the guide plate mounting groove is connected with a rack guide plate through a bolt, and the lower end face of the rack guide plate is provided with a rack guide groove matched with the driving rack. The rack guide plate in this scheme passes through the bolt fastening, the dismouting of being convenient for, and the rack guide way of terminal surface plays the guide effect to the rack under the rack guide plate.
Preferably, the hole edge section of the driving long hole is a spherical surface. In the scheme, the cross section of the edge of the hole of the driving long hole is a spherical surface, and the deflector rod swings up and down, so that when the deflector rod swings to an inclined state, the deflector rod is attached to the spherical surface of the inner ring of the hole, and abrasion of the deflector rod caused by attachment of the deflector rod and a sharp edge is prevented.
A use method of a corn seeding row number adjusting device comprises the following steps:
a. a plurality of seeding units which are arranged side by side are respectively arranged on the connecting beam through a connecting and adjusting mechanism, the sliding connecting sleeve is sleeved on the connecting beam, the unit connecting plate is fixedly connected with the seeding units, and the upper swing arm and the lower swing arm form a parallelogram so that the seeding units fixedly connected on the unit connecting plate can swing up and down;
b. one end of a tension spring is connected with the sliding block, the other end of the tension spring is connected with the front end of the lower swing arm, and the upper swing arm is pulled downwards through the tension spring so that the seeding unit is pressed downwards in soil to realize operations such as ditching and the like;
c. the sliding block is driven to slide along the length direction of the upper swing arm by adjusting the oil cylinder, so that the length of the tension spring is adjusted, the effect of adjusting the compression force is achieved, and the requirements of different soil hardness and sowing depth can be met;
d. the sliding block moves forwards to enable the insertion shaft to move to the end part of the limiting long hole of the lifting rod, the sliding block continues to move forwards, the upper end of the lifting rod is driven to move forwards through the sliding block, and therefore the lower end of the lifting rod drives the rear end of the lower swing arm to move upwards, the seeding unit on the unit connecting plate is lifted upwards, and the seeding unit is separated from the ground;
e. the working quantity of the seeding units can be adjusted and the seeding line number can be adjusted through the independent action of each connecting and adjusting mechanism;
f. the driving oil cylinder drives the rack to slide, so that any one driving gear is driven to rotate through the rack, and the two rotating shafts synchronously and reversely rotate through the meshing of the two driving gears;
g. the two rotating shafts synchronously and reversely rotate to realize the vertical swing of the deflector rod and drive the sliding connecting sleeve to slide along the length direction of the connecting beam;
h. the two deflector rods move up and down in the opposite direction, so that the component force exerted on the sliding connecting sleeve in the up-and-down direction is counteracted;
i. the included angles between the driving long holes and the horizontal plane on different sliding connection sleeves are sequentially decreased progressively along the length direction of the connecting beam, so that the moving distance of the sliding connection sleeves relative to one end of the connecting beam is sequentially increased progressively when the rotating shaft rotates, and the distance between the adjacent sliding connection sleeves is adjusted.
The beneficial effects of the invention are as follows: according to the corn seeding row number adjusting device and the using method thereof, each connecting and adjusting mechanism acts independently, so that the working number of the seeding units can be adjusted, the seeding row number can be adjusted, the connecting and adjusting mechanism can also adjust the length of the tension spring, the effect of adjusting the compression force can be achieved, and the requirements of different soil hardness and seeding depth can be met. The invention can adapt to seeding fields with various widths by connecting the adjusting mechanism and the row spacing adjusting mechanism, and provides different seeding rows and row spacings.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the connection adjustment mechanism of the present invention;
FIG. 4 is a front view of the connection adjustment mechanism of the present invention in an operational state;
FIG. 5 is a front view of the hidden front upper swing arm of the connection adjustment mechanism of the present invention in an operating state;
FIG. 6 is a front elevation view of the hidden front upper swing arm of the present invention in a raised condition;
FIG. 7 is a top view of the connection adjustment mechanism of the present invention;
FIG. 8 is a schematic view of the slider structure of the present invention;
FIG. 9 is a schematic view of the line spacing adjustment mechanism of the present invention;
FIG. 10 is a front end view of a coupling beam according to the present invention;
FIG. 11 is a cross-sectional view taken along line A-A of FIG. 10 in accordance with the present invention;
FIG. 12 is a cross-sectional view taken along line C-C of FIG. 11 in accordance with the present invention;
FIG. 13 is a cross-sectional view taken along line B-B of FIG. 10 in accordance with the present invention;
shown in the figure:
1. the device comprises a fixed frame, 2, a seeding unit, 3, a connecting beam, 4, a connecting adjusting mechanism, 5, a row spacing adjusting mechanism, 6, a sliding connecting sleeve, 7, a unit connecting plate, 8, an upper swing arm, 9, a lower swing arm, 10, an adjusting oil cylinder, 11, a sliding block, 12, a lifting rod, 13, a tension spring, 14, an inserting shaft, 15, a limiting long hole, 16, a tension spring hanging shaft, 17, a rotating shaft, 18, a shifting rod, 19, a driving long hole, 20, a driving gear, 21, a rack, 22, a driving oil cylinder, 23, a rack guide plate, 24 and a belt seat bearing.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
As shown in fig. 1 to 13, the corn seeding row number adjusting device comprises a fixing frame 1 and a plurality of seeding units 2 which are arranged side by side, wherein the fixing frame 1 is arranged behind a tractor when in use.
The rear rigid coupling of mount 1 has horizontal tie-beam 3, seeding unit 2 installs on tie-beam 3 through connecting adjustment mechanism 4, and seeding unit 2 includes mechanisms such as furrow opener, kind of a plant and covering device, installs 4 seeding units 2 in this embodiment, can realize 4 rows of seeding at most.
The connection adjusting mechanism 4 comprises a sliding connecting sleeve 6 sleeved on the connecting beam 3 and a unit connecting plate 7 fixedly connected with the seeding unit 2, the outer ring of the connecting beam 3 is rectangular, and the sliding connecting sleeve 6 is a rectangular sleeve, so that the sliding connecting sleeve 6 can move left and right on the connecting beam but cannot rotate.
The unit connecting plate 7 is positioned behind the sliding connecting sleeve 6, and the seeding unit 2 is arranged behind the unit connecting plate 7.
The connection adjusting mechanism 4 further comprises an upper swing arm 8 and a lower swing arm 9 which are arranged vertically and in parallel, the upper swing arm 8 and the lower swing arm 9 are equal in length, and therefore a parallelogram structure is formed, and the unit connecting plate 7 can swing vertically.
Go up the front end of swing arm 8 and the front end of lower swing arm 9 and all articulate with sliding connection cover 6, the rear end of going up swing arm 8 and the rear end of lower swing arm 9 all articulate with unit connecting plate 7, as shown in fig. 3, go up swing arm 8 and include two upper swing arm boards side by side about, the front and back end of two upper swing arm boards is respectively through the round hub connection, the front end round hub connection is on sliding connection cover 6, the rear end round hub connection is on unit connecting plate 7 to the front end of going up swing arm 8 is articulated with sliding connection cover 6, the rear end of going up swing arm 8 is articulated with unit connecting plate 7, and the articulated shaft of front and back all transversely sets up.
As shown in fig. 3, the lower swing arm 9 includes two lower swing arm plates arranged side by side in the left-right direction, the front ends and the rear ends of the two lower swing arm plates are respectively connected through a circular shaft, the circular shaft at the front end is connected to the sliding connection sleeve 6 in a shaft mode, the circular shaft at the rear end is connected to the unit connection plate 7 in a shaft mode, so that the front end of the lower swing arm 9 is hinged to the sliding connection sleeve 6, the rear end of the lower swing arm 9 is hinged to the unit connection plate 7, and the front hinge shaft and the rear hinge shaft are arranged transversely.
As shown in fig. 3, the slide block 11 is located between two upper swing arm plates,
the lower end of the lifting rod 12 is hinged with the rear end of the lower swing arm 9, the lower end of the lifting rod 12 is hinged on a round shaft at the rear end of the lower swing arm 9 in the embodiment, the upper end of the lifting rod 12 extends between the sliding block 11 and the upper swing arm plate, the lifting rod 12 is provided with a limit long hole 15, an inserting shaft 14 inserted into the limiting long hole 15 is fixedly connected on the sliding block 11, when the sliding block 11 moves back and forth at a position close to the rear, at the moment, the inserting shaft 14 is positioned in the limiting long hole 15, when the unit connecting plate 7 moves up and down, the inserting shaft 14 moves in the limiting long hole 15, the lifting rod 12 does not play any role, when the adjusting oil cylinder 10 drives the sliding block 11 to move forward continuously, the inserting shaft 14 moves to the upper end of the limiting long hole 15, the sliding block 11 moves forward continuously, the upper end of the lifting rod 12 is driven to move forward through the inserting shaft, and therefore the rear end of the lower swing arm 9 is pulled to move upwards, and the whole sowing unit moves upwards.
The inserted shaft 14 extends outwards from the two sides of the sliding block 11, the upper swing arm 8 is provided with a guide long hole extending along the length direction, the inserted shaft 14 is inserted into the guide long hole, the front end of the sliding block is fixedly connected with another guide inserted shaft, and the guide inserted shaft is also inserted into the guide long hole, so that the sliding connection of the sliding block 11 on the upper swing arm is realized.
The front end of adjustment hydro-cylinder 10 is articulated with 8 front ends of last swing arm, and the front end round hole cover of adjustment hydro-cylinder 10 is epaxial at the circle of 8 front ends of last swing arm in this embodiment, opening at the sliding block 11 front end has holds adjustment hydro-cylinder 10 male dodges the groove, adjustment hydro-cylinder 10's rear end is fixed at the tank bottom of dodging the groove, because here space is compact, consequently sets up and dodges the length that the groove can be relative increase adjustment hydro-cylinder 10 to increase the stroke.
The line number adjusting device also comprises a line spacing adjusting mechanism 5 for adjusting the spacing between the adjacent sliding connecting sleeves. Line spacing adjustment mechanism 5 is including the pivot actuating mechanism of two synchronous antiport of pivot 17 and two pivot 17 of drive side by side from top to bottom of the hub connection on tie-beam 3, tie-beam 3 is C type roof beam, and the opening of C type roof beam is towards the back, pivot 17 sets up inside C type roof beam, and pivot 17 is installed at the inside preceding terminal surface of C type roof beam through rolling bearing 24.
The pivot actuating mechanism includes that the rigid coupling moves at the drive gear 20 of pivot 17, rack 21 and the drive hydro-cylinder 22 that drive rack 21 on tie-beam 3 removed along length direction in the sliding connection, and the drive gear 20 intermeshing on two pivots 17, drive rack 21 are located the intermediate position of pivot 17, drive rack 21 meshes with arbitrary one drive gear 20, and drive hydro-cylinder 22's front end is articulated with the mount, the front end rigid coupling of rear end and rack 21.
The upper end face of the connecting beam 3 is provided with a guide plate mounting groove, the guide plate mounting groove is connected with a rack guide plate 23 through a bolt, the lower end face of the rack guide plate 23 is provided with a rack guide groove matched with the driving rack 21, the tooth surface of the rack 21 faces downwards, and the upper end face of the rack 21 is placed in the rack guide groove.
The driving lever 18 extending along the radial direction of the rotating shaft 17 is fixedly connected to the circumferential surface of the rotating shaft 17, the driving lever 18 in the embodiment is arranged forwards, the side surface of the sliding connecting sleeve 6 is provided with a long driving hole 19 allowing the driving lever 18 to be inserted, the long driving hole 19 is arranged on one side, far away from the opening of the C-shaped beam, of the sliding connecting sleeve 6, the long driving hole 19 in the embodiment is arranged on the front end surface of the sliding connecting sleeve 6, the front end of the C-shaped beam is provided with a through hole allowing the driving lever 18 to penetrate, and the size of the through hole is far larger than that of the driving lever 18, so that the driving lever 18 does not interfere with the driving lever.
Each rotating shaft 17 is fixedly connected with 4 shift levers 18 so as to correspond to 4 sliding connecting sleeves 6, so that the same sliding connecting sleeve 6 corresponds to an upper shift lever and a lower shift lever, and driving long holes 19 corresponding to the two shift levers 18 on the same sliding connecting sleeve 6 are arranged up and down symmetrically.
As shown in fig. 10, the driving long holes 19 are obliquely arranged, and the included angles between the driving long holes 19 on different sliding connection sleeves 6 and the horizontal plane are sequentially decreased progressively along the length direction of the connection beam 3.
The section of the hole edge of the long drive hole 19 is a spherical surface, and as shown in fig. 13, round corners may be provided on the hole edges on both sides of the long drive hole 19, and the diameter of the round corner is equal to the plate thickness, so that the round corners on both sides are connected together to form the spherical surface.
Because the deflector rod 18 is up-and-down swinging, the widths of all the positions of the long driving hole 19 are not equal, the width of the long driving hole 19 is adjusted according to the shape of the deflector rod which is moved to the long driving hole 19, the deflector rod 18 is made to swing to any position, two sides of the long driving hole 19 are attached to the deflector rod 18, and the sliding connecting sleeve 6 is prevented from swinging.
A use method of a corn seeding row number adjusting device comprises the following steps:
a. a plurality of seeding units which are arranged side by side are respectively arranged on the connecting beam through a connecting and adjusting mechanism, the sliding connecting sleeve is sleeved on the connecting beam, the unit connecting plate is fixedly connected with the seeding units, and the upper swing arm and the lower swing arm form a parallelogram so that the seeding units fixedly connected on the unit connecting plate can swing up and down;
b. one end of a tension spring is connected with the sliding block, the other end of the tension spring is connected with the front end of the lower swing arm, and the upper swing arm is pulled downwards through the tension spring so that the seeding unit is pressed downwards in soil to realize operations such as ditching and the like;
c. the sliding block is driven to slide along the length direction of the upper swing arm by adjusting the oil cylinder, so that the length of the tension spring is adjusted, the effect of adjusting the compression force is achieved, and the requirements of different soil hardness and sowing depth can be met;
d. the sliding block moves forwards to enable the inserting shaft to move to the end part of the limiting long hole of the lifting rod, the sliding block continues to move forwards, the upper end of the lifting rod is driven to move forwards through the sliding block, and therefore the lower end of the lifting rod drives the rear end of the lower swing arm to move upwards, the seeding unit on the unit connecting plate is lifted upwards, and the seeding unit is separated from the ground;
e. the working quantity of the seeding units can be adjusted and the seeding line number can be adjusted through the independent action of each connecting and adjusting mechanism;
f. the driving oil cylinder drives the rack to slide, so that any one driving gear is driven to rotate through the rack, and the two rotating shafts synchronously and reversely rotate through the meshing of the two driving gears;
g. the two rotating shafts synchronously and reversely rotate to realize the vertical swing of the deflector rod and drive the sliding connecting sleeve to slide along the length direction of the connecting beam;
h. the two deflector rods move up and down in the opposite direction, so that the component force exerted on the sliding connecting sleeve in the up-and-down direction is counteracted;
i. the included angles between the driving long holes and the horizontal plane on different sliding connection sleeves are sequentially decreased progressively along the length direction of the connecting beam, so that the moving distance of the sliding connection sleeves relative to one end of the connecting beam is sequentially increased progressively when the rotating shaft rotates, and the distance between the adjacent sliding connection sleeves is adjusted.
Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a maize seeding line number adjusting device which characterized in that: including mount (1) and a plurality of seeding unit (2) side by side, the rear rigid coupling of mount (1) has horizontal tie-beam (3), seeding unit (2) is installed on tie-beam (3) through connecting guiding mechanism (4), connect guiding mechanism (4) including cover slip connection cover (6) on tie-beam (3) and with unit connecting plate (7) of seeding unit (2) rigid coupling, unit connecting plate (7) are located slip connection cover (6) rear, connect guiding mechanism (4) still include from top to bottom and parallel arrangement's last swing arm (8) and lower swing arm (9), the front end of going up swing arm (8) and the front end of lower swing arm (9) all articulate with slip connection cover (6), the rear end of going up swing arm (8) and the rear end of lower swing arm (9) all articulate with unit connecting plate (7), connect guiding mechanism (4) still including carrying pull rod (12), extension spring (13), sliding connection sliding block (11) and drive sliding block (11) on last swing arm (8) along last swing arm (8) gliding adjustment hydro-cylinder (10) of length direction, the one end and the sliding block (11) of extension spring (13) are connected, and the other end of extension spring (13) is connected under swing arm (9) front end, the lower extreme of carrying pull rod (12) is articulated with swing arm (9) rear end down, and it has spacing slot hole (15) to open on carrying pull rod (12), the rigid coupling has inserted axle (14) that insert in spacing slot hole (15) on sliding block (11), the line number adjusting device is still including adjusting the line distance adjustment mechanism (5) of interval between the adjacent slip connection cover.
2. The apparatus of claim 1 for adjusting the number of sowing rows of corn, wherein: the front end of adjustment hydro-cylinder (10) is articulated with last swing arm (8) front end, sliding block (11) front end is opened has the groove of dodging that holds adjustment hydro-cylinder (10) and insert, the rear end rigid coupling of adjustment hydro-cylinder (10) is at the tank bottom of dodging the groove.
3. The device for adjusting the number of sowing rows of corns as claimed in claim 1, wherein: the upper swing arm (8) is provided with a guide long hole extending along the length direction, and the insertion shaft (14) is inserted into the guide long hole.
4. The device for adjusting the number of sowing rows of corns as claimed in claim 1, wherein: line spacing adjustment mechanism (5) are including two upper and lower parallel pivot (17) and the pivot actuating mechanism who drives two pivot (17) synchronous counter-rotations on tie-beam (3) of coupling, and the rigid coupling has along pivot (17) radial extending's driving lever (18) on the periphery of pivot (17), open the side of slip joint cover (6) has and holds driving slot hole (19) that driving lever (18) inserted, and drive slot hole (19) longitudinal symmetry that two driving lever (18) correspond on same slip joint cover (6) set up, drive slot hole (19) slope sets up, and the length direction of drive slot hole (19) and horizontal plane is degressive in proper order along tie-beam (3) on different slip joint covers (6).
5. The apparatus of claim 4 for adjusting the number of sowing rows of corn, wherein: the rotating shaft driving mechanism comprises a driving gear (20) fixedly connected onto the rotating shaft (17), a rack (21) connected onto the connecting beam (3) in a sliding mode and a driving oil cylinder (22) driving the rack (21) to move along the length direction, the driving gears (20) on the two rotating shafts (17) are meshed with each other, and the driving rack (21) is meshed with any one of the driving gears (20).
6. The device for adjusting the number of sowing rows of corns as claimed in claim 5, wherein: the connecting beam (3) is a C-shaped beam, the long driving hole (19) is formed in one side, away from the opening of the C-shaped beam, of the sliding connecting sleeve (6), and the rotating shaft (17) is arranged inside the C-shaped beam.
7. The apparatus of claim 6 for adjusting the number of sowing rows of corn, wherein: the utility model discloses a drive rack, including tie-beam (3), leading beam, rack guide plate (23), link beam (3), the up end of tie-beam is opened there is the deflector mounting groove, leading beam mounting groove department has rack guide plate (23) through bolted connection, the lower terminal surface of rack guide plate (23) is opened has the rack guide way with drive rack (21) adaptation.
8. The device for adjusting the number of sowing rows of corns as claimed in claim 4, wherein: the section of the hole edge of the long driving hole (19) is a spherical surface.
9. The method for using the corn seeding row number adjusting device as claimed in claim 5, which is characterized by comprising the following steps:
a. a plurality of seeding units which are arranged side by side are respectively arranged on the connecting beam through a connecting and adjusting mechanism, the sliding connecting sleeve is sleeved on the connecting beam, the unit connecting plate is fixedly connected with the seeding units, and the upper swing arm and the lower swing arm form a parallelogram so that the seeding units fixedly connected on the unit connecting plate can swing up and down;
b. one end of a tension spring is connected with the sliding block, the other end of the tension spring is connected with the front end of the lower swing arm, and the upper swing arm is pulled downwards through the tension spring, so that the sowing unit is pressed downwards in the soil to realize ditching, sowing and earthing operations;
c. the sliding block is driven to slide along the length direction of the upper swing arm by adjusting the oil cylinder, so that the length of the tension spring is adjusted, the effect of adjusting the compression force is achieved, and the requirements of different soil hardness and sowing depth can be met;
d. the sliding block moves forwards to enable the insertion shaft to move to the end part of the limiting long hole of the lifting rod, the sliding block continues to move forwards, the upper end of the lifting rod is driven to move forwards through the sliding block, and therefore the lower end of the lifting rod drives the rear end of the lower swing arm to move upwards, the seeding unit on the unit connecting plate is lifted upwards, and the seeding unit is separated from the ground;
e. the working quantity of the seeding units can be adjusted and the seeding line number can be adjusted through the independent action of each connecting and adjusting mechanism;
f. the driving oil cylinder drives the rack to slide, so that any one driving gear is driven to rotate through the rack, and the two rotating shafts synchronously and reversely rotate through the meshing of the two driving gears;
g. the two rotating shafts synchronously rotate in opposite directions to realize the vertical swing of the deflector rod and drive the sliding connecting sleeve to slide along the length direction of the connecting beam;
h. the two deflector rods move up and down in the opposite direction, so that the component force exerted on the sliding connecting sleeve in the up-and-down direction is counteracted;
i. the included angles between the driving long holes and the horizontal plane on different sliding connection sleeves are sequentially decreased progressively along the length direction of the connecting beam, so that the moving distance of the sliding connection sleeves relative to one end of the connecting beam is sequentially increased progressively when the rotating shaft rotates, and the distance between the adjacent sliding connection sleeves is adjusted.
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