CN107852874B - Rotary tillage, leveling, land-pasting and seeding combined operation machine - Google Patents

Abstract

The invention discloses a rotary tillage, leveling and land-adhering seeding combined operation machine in the technical field of agricultural machinery, which comprises a rotary tillage device, a leveling device and a seeding device, wherein the rotary tillage device, the leveling device and the seeding device are arranged on a rack; the middle transmission case of the rotary tillage device is in transmission connection with a tractor, at least one rotary tillage shaft is in transmission connection with the middle transmission case, and the rotary tillage device is connected with the tractor; the rotary tillage, leveling and sowing integrated operation is realized, and the operation efficiency is high.

Description

Rotary tillage, leveling, land-pasting and seeding combined operation machine

Technical Field

The invention relates to a compound operation machine, in particular to a rotary tillage leveling seeding compound operation machine.

Background

At present, the crop seeding has been widely realized mechanical operation, ditching is carried out before seeding, in the prior art, ditching seeding can be realized in a 2-fold mode, the first mode is that ditching is carried out on a field to be seeded, seeding is carried out on the field with ditches, for seeding on the field with shallow ditches, the depth of the shallow ditches is 1-3cm, the seeding device comprises a seeding box, the seeding box is fixedly connected on a walking device, a plurality of seeding pipes are distributed at the bottom of the seeding box, and seeds fall onto the field along the seeding pipes; the second is that the seeding device can shake under the interference of external environment including the seeding pipe, because the degree of depth of having opened the ditch is very shallow, the seeding pipe only receives the disturbance a little, and the height of seeding all can change, and the seed that falls down in the seeding pipe can't fall into the shallow ditch in, and the seeding degree of depth can not obtain the assurance.

Disclosure of Invention

The invention aims to solve the technical problem that accurate sowing cannot be realized in the prior art, and provides a rotary tillage, leveling and land-adhering sowing combined operation machine.

The purpose of the invention is realized as follows: a rotary tillage, leveling and land-sticking seeding combined operation machine comprises a rotary tillage device, a leveling device and a seeding device which are arranged on a rack, wherein the leveling device is arranged behind the rotary tillage device, and the seeding device is arranged behind the leveling device; the rotary cultivator is characterized in that a middle transmission case of the rotary cultivator is in transmission connection with a tractor, at least one rotary tillage shaft is in transmission connection with the middle transmission case, and the rotary cultivator is connected with the tractor.

In order to further improve the accuracy and stability of seeding by the seeding device, the seeding device comprises a liftable seeding rack, the seeding frame is fixedly connected with a seeding box with a containing cavity, the bottom of the seeding box is distributed with a plurality of seeding devices in the length direction, the seed dropping opening of the electric seeder is just opposite to the ground, the front part of the seeding frame is rotatably connected with a supporting roller, the rear part of the seeding frame is rotatably connected with a supporting compression roller, the seeding box is arranged between the supporting roll and the supporting press roll, the seeding frame between the seeding box and the supporting roll is rotatably connected with a ditching shaft, a plurality of ditching cutter groups are distributed on the ditching shaft, at least one ditching cutter is distributed on the ditching shaft in the same radial direction, a soil covering shaft is rotatably connected to the seeding frame between the seeding box and the supporting and pressing roller, and a plurality of soil covering cutters are distributed on the soil covering shaft; the lowest point of the rotation track of the ditching cutter is 1-3cm lower than the bottom side of the seed metering device, and the lowest point of the rotation track of the earthing cutter is not higher than the bottom side of the ditching cutter and is lower than the bottom side of the seed metering device; the bottom sides of the supporting roller and the supporting press roller are 0-10mm lower than the bottom side of the seed sowing device; in the design, the sowing on the ground is realized, the electric seeder is more stable during the basic sowing on the ground due to the combined arrangement of the supporting compression roller and the supporting roller, the sowing depth is ensured, a stable seed falling plane is provided, the seeds can accurately fall into the shallow trench, the germination rate is high, and the germination is more orderly; the combination of ditching sword, electronic disseminator and earthing sword sets up for ditching, seeding and earthing realize the integration action, reduce the labour, the seed can fall into the ditch of just having opened more accurately, further guarantees to broadcast deeply, has broadcast and carry out the earthing immediately after planting to it, owing to open be the shallow ditch, only need a small amount of hack can realize the earthing of ditch, the earthing is convenient and reliable.

In order to further improve the stability of seeds during seed dropping, the bottom side of the supporting roller is 2-10mm lower than the bottom side of the seed metering device, and the bottom side of the supporting press roller is 2-10mm lower than the bottom side of the seed metering device.

In order to realize narrow sowing, all the ditching knives arranged in the same radial direction of the ditching shaft form a ditching knife group.

In order to realize wide sowing, two ditching knives which are arranged oppositely are arranged in the axial direction of a ditching shaft in one-to-one correspondence with seed falling ports of the seed sowing device, opposite sides of the two ditching knives which are arranged oppositely are tangent, and the two ditching knives which are arranged oppositely form a ditching knife group.

In order to further improve the accuracy of sowing, the cutting edge of the ditching cutter is arc-shaped, the ditching cutter group corresponds to the seed dropping port of the seed sowing device one by one, the width of the ditching cutter group is not less than that of the seed dropping port, and at least one side of the ditching cutter group in the left and right direction is provided with a soil covering cutter; in the design, during sowing, the ditching shaft and the soil covering shaft continuously rotate to drive the ditching cutter and the soil covering cutter to do rotary motion, the ditching cutter is used for ditching a shallow trench, the seed sowing device is used for dropping seeds into the shallow trench along a seed dropping opening, the soil covering cutter is used for smashing and throwing soil backwards, and due to the fact that the depth of the trench is very shallow, the thrown soil backwards is scattered on the shallow trench to cover the shallow trench, and the shallow trench is covered with the soil while accurate sowing is achieved.

In order to realize the lifting of the seeding frame, the seeding frame further comprises a lifting mechanism, the lifting mechanism comprises a front connecting seat and a rear connecting seat opposite to the front connecting seat, the top of the front connecting seat is hinged with the fixed end of a linear actuator, one end of an upper movable rod is hinged on the front connecting seat below the fixed end of the linear actuator, the other end of the upper movable rod is hinged with the rear connecting seat, the linear actuator is connected with a telescopic rod capable of doing reciprocating linear motion, the extending end of the telescopic rod is hinged with the upper movable rod, the lower part of the front connecting seat is hinged with one end of a lower movable rod, the other end of the lower movable rod is hinged with the lower part of the rear connecting seat, and the upper movable rod, the rear connecting seat, the; the elevating system is provided with 2 and sets up about seeding case central symmetry on length direction.

In order to realize the active rotation of the ditching shaft and the soil covering shaft, a motor is fixedly connected to one side of the top of the seeding frame in the left-right direction, an output shaft of the motor is connected with a driving wheel, a first driven wheel and a second driven wheel are respectively connected to the driving wheel in a transmission mode, the ditching shaft is connected with the first driven wheel, and the soil covering shaft is connected with the second driven wheel.

In order to further improve the leveling uniformity, the leveling device comprises a supporting beam, an angle adjusting cylinder and an automatic horizontal cylinder, the supporting beam is arranged on a frame, a planker capable of swinging up and down is further arranged on the frame corresponding to the front rear side of the supporting beam, the planker comprises a horizontal part and an inclined part, the inclined part inclines backwards, a leveling plate parallel to the upper side of the horizontal part is arranged at the bottom of the inclined part, the center of the leveling plate is connected with one end of a telescopic rod of the angle adjusting cylinder, a front supporting seat and a rear supporting seat are arranged at the center of the top of the horizontal part, the fixed end of the angle adjusting cylinder is connected with the front supporting seat and the rear supporting seat, the upper side of the supporting beam is connected with the fixed end of the automatic horizontal cylinder, one end of the telescopic rod of the automatic horizontal cylinder is fixedly connected with a connecting, the other end of the supporting rod is fixedly connected with a connecting rotating shaft which is perpendicular to the supporting rod, the connecting rotating shaft is rotatably connected to the connecting seat, and the horizontal supporting seat deviates from the center of the horizontal part in the length direction; in the design, when leveling operation is carried out, the horizontal ground is taken as a reference surface, and when the leveling plate is inclined forwards and backwards or leftwards and rightwards, namely the leveling plate is not parallel to the horizontal ground, the leveling plate needs to be adjusted at the moment so that the leveling surface (the plane where the bottom of the leveling plate is located) of the leveling plate is always parallel to the horizontal ground; when the leveling plate inclines backwards, namely the bottom of the front side of the leveling plate is lower than the bottom of the rear side of the leveling plate, the telescopic rod of the angle adjusting cylinder is controlled to retract, and the telescopic rod of the angle adjusting cylinder drives the leveling plate to turn upwards anticlockwise until the leveling plate does not incline any more in the front-rear direction; when the leveling plate is inclined forwards, namely the bottom of the front side of the leveling plate is higher than the bottom of the rear side of the leveling plate, the telescopic rod of the angle adjusting cylinder is controlled to extend out, the telescopic rod of the angle adjusting cylinder drives the leveling plate to turn clockwise downwards until the leveling plate is not inclined any more in the front-rear direction, and therefore the angle adjustment of the front-rear direction of the leveling plate is finished; meanwhile, when the leveling plate is inclined in the left-right direction, for example, when the leveling plate is inclined in the left direction, namely the right side of the leveling plate is higher than the left side, if the horizontal supporting seat is arranged at the position which is deviated from the right center of the horizontal part, the telescopic rod of the automatic horizontal cylinder is controlled to retract, the telescopic rod of the automatic horizontal cylinder drives the connecting rotating shaft to move downwards, the connecting rotating shaft applies downward pressure to the supporting rod, and the supporting rod pushes the horizontal supporting seat to swing downwards from the centers of the front supporting seat and the rear supporting seat until the leveling plate is not inclined in the left-right direction; when the leveling plate inclines rightwards, namely the right side height of the leveling plate is lower than the left side height, the telescopic rod of the automatic horizontal cylinder is controlled to extend out, the telescopic rod drives the connecting seat to move upwards, the connecting seat drives the connecting rotating shaft to move upwards, the connecting rotating shaft pulls the supporting rod to move upwards, and the supporting rod drives the right side of the horizontal part to swing upwards around the front and rear supporting seats until the leveling plate does not incline rightwards any more; therefore, the bottom of the leveling plate is always parallel to the horizontal ground and is not influenced by the external environment or the working mode of the tractor; the leveling device can realize leveling on the ground after rotary tillage, and can adjust the levelness of the leveling plate in the front-back direction and the left-right direction in real time, so that the leveling surface of the leveling plate is always attached to and parallel to the horizontal ground, the leveling degree is uniform, and the leveling effect is good; in order to further improve the reliability of the connecting structure of the angle adjusting cylinder and the front and rear supporting seats, one end of a first horizontal rotating shaft is rotatably connected to the front and rear supporting seats, the other end of the first horizontal rotating shaft is rotatably connected with a first connecting piece, a second horizontal rotating shaft is connected to the first connecting piece, the second horizontal rotating shaft vertically penetrates through the first horizontal rotating shaft, and the upper part of the fixed end of the angle adjusting cylinder is fixedly connected with the first connecting piece through the second connecting piece; in the design, when the telescopic rod of the automatic horizontal cylinder moves linearly, the automatic horizontal cylinder can drive the horizontal supporting seat to move up and down, the horizontal supporting seat can drive the supporting beam to swing up and down, when the supporting beam swings up and down, the horizontal rotating shaft I rotates in the front and rear supporting seats, so that the front and rear supporting seats do not bear torsion, when the telescopic rod of the angle adjusting cylinder acts, the angle adjusting cylinder can drive the leveling plate to swing back and forth, the leveling plate drives the planker to swing back and forth, the fixed end of the angle adjusting cylinder is fastened through the first connecting piece and the second connecting piece, the fixed end of the angle adjusting cylinder also swings correspondingly, and the fixed end of the angle adjusting cylinder rotates around the horizontal rotating shaft; the first connecting piece and the second connecting piece are arranged to fasten the fixed end of the angle adjusting cylinder, so that when the angle adjusting cylinder and the automatic horizontal cylinder act, the front supporting seat and the rear supporting seat do not bear the action of torsion, and the action of front-back swinging or left-right swinging of the leveling plate is smoother.

In order to enable the leveling plate to be tightly attached to the ground all the time, the leveling device further comprises a pressing mechanism, the pressing mechanism comprises two lifting lugs arranged on the rear side of the leveling plate at intervals, a first horizontal fixing shaft is connected between the two lifting lugs, an adjusting seat is arranged on the upper side of the dragging plate, at least 1 pair of adjusting holes which are opposite to each other are arranged at the left end and the right end of the adjusting seat, the adjusting seat is fixedly connected with a second horizontal fixing shaft through the adjusting holes, the centers of the first horizontal fixing shaft and the second horizontal fixing shaft in the length direction are the same, the second horizontal fixing shaft is connected with one end of at least one elastic compression rod, and the other end of the; the pressing mechanisms are provided with 2 pressing mechanisms which are symmetrically arranged relative to the center of the flattening plate in the length direction; a vertical kidney-shaped groove is formed in the machine frame, sliding rods are arranged at two ends of the horizontal part of the carriage, and the sliding rods can slide up and down along the kidney-shaped groove; in this design, the elasticity depression bar is compressed, and the elasticity depression bar gives the decurrent pressure of levelling plate, makes the levelling plate hug closely all the time and has rotated rotary tillage ground, improves and levels the effect.

In order to realize the adjustment of the leveling width, an extension mechanism is arranged in the leveling plate and comprises an extension cylinder, a sliding groove which penetrates through the leveling plate in the left-right direction is formed in the leveling plate, a supporting plate is fixedly connected in the leveling plate corresponding to the center of the sliding groove, an extension plate is slidably arranged on the inner wall close to the leveling plate, one side of the supporting plate is connected with one end, where an extension rod of the extension cylinder is located, a fixing plate is arranged at the outward end of the extension plate, and the fixed end of the extension cylinder is connected with the fixing plate; in this design, can level and smooth broad width according to farmland size adjustment, improve the application scope of levelling plate, simultaneously, the expansion plate sets up in the levelling plate, and compact structure saves space.

In order to realize the ditching work of the drainage ditch, at least one first deep groove cutter for ditching the drainage ditch is distributed on the ditching shaft between 2 pairs of ditching cutter groups corresponding to the center of the ditching shaft in the length direction, and the lowest point of the rotation circumference of the first deep groove cutter is 8-12cm lower than the bottom side of the supporting roller.

In order to further compact the drainage ditch, the deep ditch device also comprises a second deep ditch knife for opening the drainage ditch, one side of the second deep ditch knife is flush with the front side of the sowing box in the front-back direction, the other side of the second deep ditch knife extends towards the back direction of the supporting and pressing roller, the second deep ditch knife is arranged right behind the first deep ditch knife, one side of the second deep ditch knife is fixedly connected with the bottom side of the sowing box, the rear part of the rack is fixedly connected with a supporting frame, the other side of the second deep ditch knife is fixedly connected with the supporting frame, the rear side of the second deep ditch knife is provided with a pressing wheel with adjustable height, and the bottom side of the second deep ditch knife is not higher than the bottom side of the rotary circumference of the first deep ditch knife; in the design, the deep trench cutter II is used for opening the deep trench on the basis of the deep trench cutter I, so that the deficient soil in the trench is compacted, the height of the pressing wheel is adjusted according to actual needs, and the pressing wheel is used for further compacting the soil on the inner bottom side of the trench.

In order to realize the altitude mixture control of pinch roller, be connected with the regulation seat that has the slip chamber on the support frame of two rear sides of deep ditch sword, be equipped with in the regulation seat and can be along the gliding connecting rod in slip chamber, the bottom of connecting rod has linked firmly the fixing base, the pinch roller rotationally is connected with the fixing base, a plurality of regulation holes one of having arranged on the direction of height of connecting rod, it has the regulation hole two that corresponds with regulation hole one to open on the regulation seat.

Before the deep groove cutter works, the height of the pressing wheel is adjusted according to the humidity of the soil, the soil is wet, the connecting rod slides upwards along the sliding cavity of the adjusting seat, and when the pressing wheel is adjusted to be basically level with the bottom side of the deep groove cutter II, the position of the pressing wheel in the height direction is fixed by using bolts and nuts to penetrate through the adjusting hole II and the adjusting hole I; when the soil is dry, the connecting rod slides downwards along the sliding cavity of the adjusting seat, and when the bottom side of the pressing wheel is adjusted to be 1-2cm lower than the bottom side of the deep trench cutter II, the position of the pressing wheel in the height direction is fixed by using a bolt and a nut to penetrate through the adjusting hole II and the adjusting hole I; the invention relates to a rotary tillage, leveling and land-adhering seeding composite operation machine, when in dry field operation and in need of seeding operation, a tractor drives an intermediate transmission case to act through a universal joint, the intermediate transmission case drives a rotary tillage shaft to rotate, the rotary tillage shaft drives a rotary tillage cutter to rotate, the rotary tillage cutter realizes the rotary tillage action of the ground, a leveling device performs leveling operation on the rotavated ground, specifically, an extension plate is tightly contracted in a leveling plate, a seeding mechanism performs seeding operation on the leveled field, the horizontal ground is used as a reference surface, when the leveling plate is inclined forwards and backwards or leftwards and rightwards, namely, the leveling plate is not parallel to the horizontal ground, at the moment, the leveling plate needs to be adjusted, so that the leveling surface (the plane where the bottom of the leveling plate is located) of the leveling plate is always parallel to the horizontal ground; when the leveling plate inclines backwards, namely the bottom of the front side of the leveling plate is lower than the bottom of the rear side of the leveling plate, the telescopic rod of the angle adjusting cylinder is controlled to retract, and the telescopic rod of the angle adjusting cylinder drives the leveling plate to turn upwards anticlockwise until the leveling plate does not incline any more in the front-rear direction; when the leveling plate is inclined forwards, namely the bottom of the front side of the leveling plate is higher than the bottom of the rear side of the leveling plate, the telescopic rod of the angle adjusting cylinder is controlled to extend out, the telescopic rod of the angle adjusting cylinder drives the leveling plate to turn clockwise downwards until the leveling plate is not inclined any more in the front-rear direction, and therefore the angle adjustment of the front-rear direction of the leveling plate is finished; meanwhile, when the leveling plate is inclined in the left-right direction, for example, when the leveling plate is inclined in the left direction, namely the right side of the leveling plate is higher than the left side, if the horizontal supporting seat is arranged at the position which is deviated from the right center of the horizontal part, the telescopic rod of the automatic horizontal cylinder is controlled to retract, the telescopic rod of the automatic horizontal cylinder drives the connecting rotating shaft to move downwards, the connecting rotating shaft applies downward pressure to the supporting rod, and the supporting rod pushes the horizontal supporting seat to swing downwards from the centers of the front supporting seat and the rear supporting seat until the leveling plate is not inclined in the left-right direction; when the leveling plate inclines rightwards, namely the right side height of the leveling plate is lower than the left side height, the telescopic rod of the automatic horizontal cylinder is controlled to extend out, the telescopic rod drives the connecting seat to move upwards, the connecting seat drives the connecting rotating shaft to move upwards, the connecting rotating shaft pulls the supporting rod to move upwards, and the supporting rod drives the right side of the horizontal part to swing upwards around the front supporting seat and the rear supporting seat until the leveling plate does not incline in the left-right direction, so that the bottom of the leveling plate and the horizontal ground are always kept parallel to each other and are not influenced by the external environment or the; the seeding frame descends, the specific process of descending the seeding frame is that the oil inlet amount and the oil outlet amount of the hydraulic oil cylinder are controlled, the telescopic rod of the hydraulic oil cylinder continuously extends out, the downward acting force of the telescopic rod on the upper movable rod is applied, the upper movable rod and the lower movable rod push the rear connecting seat to descend, the rear connecting seat drives the seeding frame to descend, the seeding frame drives the seeding box, the supporting roller and the supporting press roller to descend, the distance range of the bottom sides of the supporting roller and the supporting press roller, which is lower than the bottom side of the electric seeder, is 0-10mm, the bottom side of the electric seeder is basically level with the ground, namely, the ground-attached seeding is realized, and any action of the hydraulic; when the soil covering device works, the motor acts to control the rotation direction of an output shaft of the motor, when the cutting edge of the soil covering knife is tangent to the ground, the stress direction of the soil covering knife is opposite to the advancing direction of the traveling device, the ditching shaft and the soil covering shaft are continuously rotated, the rotation of the ditching shaft drives the ditching knife to do rotary motion around the radial center of the ditching shaft, the ditching knife performs shallow ditch digging on the field, the depth of the shallow ditch is 1-3cm, the cutting edge of the ditching knife is arc-shaped, the seed sowing device acts, the supporting roller and the supporting and pressing roller simultaneously rotate along the ground along with the advancing of the traveling device and are both supported on the ground, so that seeds stably fall into a ditch just dug along a seed dropping hole, the soil covering shaft drives the soil covering knife to do rotary motion around the radial center of the soil covering shaft, the soil covering knife smashes and throws back soil on both sides of the shallow ditch just dug, and the smashed soil covers the ditch backwards due to the shallow depth, meanwhile, the ground which is completely sown and covered with soil is pressed by the supporting and pressing roller, so that the sown soil is still very flat, and the arrangement of the leveling device provides a good leveling ground for the sowing mechanism and provides a more stable seed falling plane for the sowing operation; when the paddy field is operated, at the moment, the seeding frame can be lifted to be away from the ground without seeding operation, the extension rod of the extension cylinder is controlled to extend according to the leveling width, the extension plate is extended, and the paddy field rotary tillage and leveling operation is carried out; in addition, when sowing, the first deep groove cutter continuously rotates under the action of the ditching shaft, the first deep groove cutter cuts a soil layer to ditch a deep groove, and the second deep groove cutter further ditches on the basis of the ditches dug by the first deep groove cutter to compact the drainage ditch, so that the ditching work of the drainage ditch is realized; the leveling device is used for leveling on the basis of rotary tillage, and can adjust the levelness of the leveling plate in the front-back direction and the left-right direction in real time, so that the leveling surface of the leveling plate is always attached to and parallel to the horizontal ground, the levelness is uniform, and the leveling effect is good; when the levelness of the leveling plate is adjusted, the angle adjusting cylinder cannot generate torsion on the first connecting piece, when the angle in the front-back direction is adjusted, the angle adjusting cylinder rotates around the second horizontal rotating shaft, when the angle in the left-right direction is adjusted, the angle adjusting cylinder rotates around the first horizontal rotating shaft by taking the center of the horizontal supporting seat as a fulcrum, the front-back supporting seat cannot generate torsion, and the service life of a structure for fastening the angle adjusting cylinder is prolonged; the elastic pressure rod is arranged to press the leveling plate to be tightly attached to the ground, so that the leveling effect is further improved; the stretching mechanism has compact structure, can adjust the leveling width in real time according to the actual condition of the farmland, and meets the requirement of leveling operation; the electric seeder is characterized in that the electric seeder comprises a leveling device, a pressing roller and a supporting roller, wherein the leveling device is arranged on the upper surface of the seeding mechanism, the pressing roller is arranged on the lower surface of the supporting roller, the electric seeder is arranged on the lower surface of the supporting roller, and the pressing roller is arranged on the lower surface of the supporting roller; the combination of the ditching cutter, the electric seeder and the earthing cutter realizes the integrated action of ditching, seeding and earthing, reduces labor force, ensures that seeds can more accurately fall into a ditch with just ditched seeds, further ensures the seeding depth, immediately covers the seeds after seeding, can realize the earthing of the ditch only by a small amount of broken soil due to the shallow ditch, and is convenient and reliable to earthing; the invention can be applied to the combined operation of rotary tillage, leveling and shallow trench digging seeding.

Drawings

FIG. 1 is a front view of one configuration of the present invention.

Fig. 2 is a perspective view of a structure of the present invention.

FIG. 3 is a perspective view of the flattening apparatus according to the present invention.

Fig. 4 is a partial enlarged view a in fig. 3.

FIG. 5 is a front view of the sowing mechanism of the present invention.

FIG. 6 is a side view of the sowing mechanism of the present invention.

Fig. 7 is a perspective view showing one structure of the sowing mechanism in the present invention.

FIG. 8 is a bottom view of one configuration of the seed planting mechanism of the present invention.

Fig. 9 is a schematic view of a hydraulic connection structure of the angle adjusting cylinder of the present invention.

FIG. 10 is a perspective view showing another structure of the sowing mechanism in the present invention.

FIG. 11 is a top view of another configuration of the sowing mechanism of the present invention.

FIG. 12 is a bottom view of another configuration of the seed planting mechanism of the present invention.

Fig. 13 is a perspective view of another configuration of the present invention.

Fig. 14 is a side view of another structure of the present invention.

Wherein, 1, 2, 201, 202, 203, middle transmission case, 3, 4, suspension beams, 5, leveling device, 501, 502, extension board, 503, extension cylinder, 504, 505, one, 506, lifting ear, 507, elastic pressure bar, 508, two, 509 adjusting hole, 510 adjusting seat, 511, one, 512, two horizontal shafts, 513 front and back supports, 514, 515, connecting shaft, 516, 517, supporting rod, 518, automatic horizontal cylinder, 519, 520 gyroscope, 521 sliding rod, 522 kidney-shaped groove, 523, 524, 525, 526, one, 527, 6 seeding mechanism, 601, supporting roller, 602, 603, driven roller, 604, 605, 606 motor, 607 seeding case, 608 seeding frame, 609, back connecting seat, 610, lower active rod, 611 linear driver, 612 upper movable rod, 613 telescopic rod, 614 ditching cutter group, 615 ditching shaft, 616 supporting press roller, 617 earthing cutter, 618 earthing shaft, 619 ditching cutter, 620 driven wheel II, 621 seeding apparatus, 622 seed dropping port, 7 vane pump I, 8 oil tank, 9 one-way valve I, 10 three-way four-position proportional directional valve I, 11 deep ditching cutter I, 12 deep ditching cutter II, 13 pressing wheel, 14 fixing seat, 15 connecting rod, 16 adjusting hole I, 17 adjusting hole II and 18 supporting frame.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Example 1

The rotary tillage, leveling and land-adhering seeding combined working machine comprises a rotary tillage device, a leveling device 5 and a seeding device which are arranged on a frame 1, wherein the leveling device 5 is arranged behind the rotary tillage device, and the seeding device is arranged behind the leveling device 5; the middle transmission case 203 of the rotary tillage device is in transmission connection with a tractor, at least one rotary tillage shaft 201 is in transmission connection with the middle transmission case 203, and the rotary tillage device is connected with the tractor.

The seeding device has the specific structure that the seeding device comprises a liftable seeding frame 608, a seeding box 607 with an accommodating cavity is fixedly connected to the seeding frame 608, a plurality of seed metering devices 621 are arranged at the bottom of the seeding box 607 in the length direction, a seed dropping opening 622 of an electric seeder is right opposite to the ground, the seed dropping opening 622 is communicated with the accommodating cavity, a supporting roller 601 is rotatably connected to the front part of the seeding frame 608, a supporting and pressing roller 616 is rotatably connected to the rear part of the seeding frame 608, the seeding box 607 is arranged between the supporting roller 601 and the supporting and pressing roller 616, a ditching shaft 615 is rotatably connected to the seeding frame 608 between the seeding box 607 and the supporting roller 601, a plurality of ditching knife groups 614 are arranged on the ditching shaft 615, two ditching knives 619 are arranged in the same radial direction of the ditching shaft 615, a soil covering shaft 618 is rotatably connected to the seeding frame 608 between the seeding box 607 and the supporting and the pressing roller 616, and a plurality; the lowest point of the rotation track of the ditching cutter 619 is 1-3cm lower than the bottom side of the seed sowing device 621, and the lowest point of the rotation track of the earthing cutter 617 is not higher than the bottom side of the ditching cutter 619 and lower than the bottom side of the seed sowing device 621; the bottom sides of the supporting rollers 601 and the supporting and pressing rollers 616 are 0-10mm lower than the bottom side of the seed metering device 621, wherein the seed metering device 621 is an electric seed metering device 621.

In order to further improve the stability of seeds during seed dropping, the bottom side of the supporting roller 601 is 2-10mm lower than the bottom side of the seed metering device 621, and the bottom side of the supporting and pressing roller 616 is 2-10mm lower than the bottom side of the seed metering device 621.

In order to realize narrow sowing, a plurality of ditching knives 619 are arranged on the ditching shaft 615 in the same radial direction, and all the ditching knives 619 arranged on the ditching shaft 615 in the same radial direction form a ditching knife group 614.

In order to further improve the accuracy of sowing, the cutting edge of the ditching cutter 619 is arc-shaped, the ditching cutter set 614 corresponds to the seed dropping port 622 of the seed sowing device 621 one by one, the width of the ditching cutter set 614 is not less than the width of the seed dropping port 622, and at least one side of the ditching cutter set 614 is provided with a soil covering cutter 617.

In order to realize the lifting of the seeding rack 608, the seeding rack further comprises a lifting mechanism, the lifting mechanism comprises a front connecting seat 602 and a rear connecting seat 609 opposite to the front connecting seat 602, the top of the front connecting seat 602 is hinged with a fixed end of a linear driver 611, one end of an upper movable rod 612 is hinged on the front connecting seat 602 below the fixed end of the linear driver 611, the other end of the upper movable rod 612 is hinged with the rear connecting seat 609, the linear driver 611 is connected with a telescopic rod 613 capable of performing reciprocating linear motion, the extending end of the telescopic rod 613 is hinged with the upper movable rod 612, the lower part of the front connecting seat 602 is hinged with one end of a lower movable rod 610, the other end of the lower movable rod 610 is hinged with the lower part of the rear connecting seat 609, and the upper movable rod 612, the rear; wherein, elevating system is provided with 2 and about seeding case 607 central symmetry in the length direction sets up.

In this embodiment, the driving wheel 605, the first driven wheel 603 and the second driven wheel 620 are all sprocket wheels, and the driving wheel 605 is respectively connected with the first driven wheel 603 and the second driven wheel 620 in a transmission manner through a chain 604.

In order to realize the driving rotation of the ditching shaft 615 and the soil covering shaft 618, a motor 606 is fixedly connected to one side of the top of the seeding frame 608 in the left-right direction, a driving wheel 605 is connected to an output shaft of the motor 606, a first driven wheel 603 and a second driven wheel 620 are respectively connected to the driving wheel 605 in a transmission manner, the ditching shaft 615 is connected with the first driven wheel 603, and the soil covering shaft 618 is connected with the second driven wheel 620.

Wherein, the leveling device 5 has a concrete structure that the leveling device 5 comprises a supporting beam 524, an angle adjusting cylinder 527 and an automatic horizontal cylinder 518, the supporting beam 524 is arranged on the frame 1, a planker capable of swinging up and down is further arranged on the frame 1 corresponding to the right back of the supporting beam 524, the planker comprises a horizontal part 519 and an inclined part 523, the inclined part 523 inclines backwards, the bottom of the inclined part 523 is provided with a leveling plate parallel to the upper side of the horizontal part 519, the center of the leveling plate is connected with one end of an expansion link 613 of the angle adjusting cylinder 527, the center of the top of the horizontal part 519 is provided with a front and rear supporting seat 513, the fixed end of the angle adjusting cylinder 527 is connected with the front and rear supporting seat 513, the upper side of the supporting beam 524 is connected with the fixed end of the automatic horizontal cylinder 518, one end of the expansion link 613 of the automatic horizontal cylinder, one end of a support rod 517 is vertically and fixedly connected to the upper side of the support rotating shaft, the other end of the support rod 517 is fixedly connected with a connecting rotating shaft 515, the connecting rotating shaft 515 is perpendicular to the support rod 517, the connecting rotating shaft 515 is rotatably connected to a connecting seat 516, and a horizontal supporting seat 514 deviates from the center of a horizontal part 519 in the length direction; one end of a first horizontal rotating shaft 526 is rotatably connected to the front and rear supporting seats 513, the other end of the first horizontal rotating shaft 526 is rotatably connected with a first connecting piece 511, a second horizontal rotating shaft 512 is connected to the first connecting piece 511, the second horizontal rotating shaft 512 vertically penetrates through the first horizontal rotating shaft 526, and the upper portion of the fixed end of the angle adjusting cylinder 527 is fixedly connected with the first connecting piece 511 through a second connecting piece 525.

In order to enable the leveling plate to be tightly attached to the ground all the time, the leveling device 5 further comprises a pressing mechanism, the pressing mechanism comprises two lifting lugs 506 which are arranged on the rear side of the leveling plate at intervals, a first horizontal fixing shaft 505 is connected between the two lifting lugs 506, an adjusting seat 510 is arranged on the upper side of the carriage, at least 1 pair of adjusting holes 509 which are opposite to each other are arranged at the left end and the right end of the adjusting seat 510, the adjusting seat 510 is fixedly connected with a second horizontal fixing shaft 508 through the adjusting holes 509, the centers of the first horizontal fixing shaft 505 and the second horizontal fixing shaft 508 in the length direction are the same, the second horizontal fixing shaft 508 is connected with one end of at least one elastic compression rod 507; the pressing mechanisms are provided with 2 pressing mechanisms which are symmetrically arranged relative to the center of the flattening plate in the length direction; the frame 1 is provided with a vertical kidney-shaped groove 522, two ends of the horizontal part 519 of the carriage are provided with a sliding rod 521, and the sliding rod 521 can slide up and down along the kidney-shaped groove 522.

In order to realize the adjustment of the leveling width, an extension mechanism is arranged in the leveling plate, the extension mechanism comprises an extension cylinder 503, a sliding groove which penetrates through the leveling plate in the left-right direction is formed in the leveling plate, a supporting plate 504 is fixedly connected in the leveling plate corresponding to the center of the sliding groove, an extension plate 502 is slidably arranged on the inner wall close to the leveling plate, one side of the supporting plate 504 is connected with one end of an extension rod 613 of the extension cylinder 503, a fixing plate 501 is arranged at the outward end of the extension plate 502, and the fixed end of the extension cylinder 503 is connected with the fixing plate 501.

In this embodiment, a suspension beam 4 is fixedly connected to the frame 1 corresponding to the front side of the rotary tillage mechanism 2, and a suspension frame 3 for suspension connection with a tractor is arranged on the suspension beam 4.

In this embodiment, the linear actuator 611 and the extension cylinder 503 are preferably single rod hydraulic cylinders, and the extension cylinder 503 is connected to the hydraulic system of the tractor, and the extension and retraction of the extension cylinder 503 is controlled by using the hydraulic handle of the tractor.

In this embodiment, in order to realize real-time detection of the levelness, the upper side of the horizontal portion 519 is provided with the gyroscope 520, the gyroscope 520 detects the inclination angle of the horizontal portion 519 relative to the horizontal ground in real time and transmits the detected signal to the controller, and the controller controls the expansion and contraction of the angle adjusting cylinder 527 and the telescopic rod 613 of the automatic horizontal cylinder 518 according to the received inclination angle signal; in order to realize the controllability of the actions of the angle adjusting cylinder 527 and the automatic horizontal cylinder 518, the angle adjusting cylinder 527 and the automatic horizontal cylinder 518 are single-rod hydraulic cylinders, a rod cavity of the angle adjusting cylinder 527 is communicated with one output port of a three-way four-position proportional reversing valve I10, a rodless cavity of the angle adjusting cylinder 527 is communicated with the other output port of the three-way four-position proportional reversing valve I10, an oil inlet of the three-way four-position proportional reversing valve I10 is sequentially connected with an oil tank 8 of a tractor through a vane pump I7 and a one-way valve I9, and an oil return port of the three-way four-position proportional reversing valve I10 is communicated with the; a rod cavity of the automatic horizontal cylinder 518 is communicated with one output port of a second three-way four-position proportional reversing valve, a rodless cavity of the automatic horizontal cylinder 518 is communicated with the other output port of the second three-way four-position proportional reversing valve, an oil inlet of the second three-way four-position proportional reversing valve is connected with an oil tank 8 through a second vane pump and a second one-way valve in sequence, and an oil return port of the second three-way four-position proportional reversing valve is communicated with the oil tank 8; a rod cavity of the linear driver 611 is communicated with one output port of the third three-way four-position proportional reversing valve, a rodless cavity of the linear driver 611 is communicated with the other output port of the third three-way four-position proportional reversing valve, an oil inlet of the first three-way four-position proportional reversing valve 10 is sequentially connected with an oil tank 8 of the tractor through the third vane pump and the third check valve, an oil return port of the third three-way four-position proportional reversing valve is communicated with the oil tank 8, and the controller controls the first three-way four-position proportional reversing valve 10, the second three-way four-position proportional reversing valve and the third three-way four-position.

The invention relates to a rotary tillage, leveling and land-adhering seeding composite operation machine, when in dry field operation and in need of seeding operation, a tractor drives an intermediate transmission case 203 to act through a universal joint, the intermediate transmission case 203 drives a rotary tillage shaft 201 to rotate, the rotary tillage shaft 201 drives a rotary tillage cutter 202 to rotate, the rotary tillage cutter 202 realizes the rotary tillage action of the ground, a leveling device 5 performs leveling operation on the ground which is rotary tillage, specifically, an extension plate 502 is contracted in a leveling plate, a seeding mechanism 6 performs seeding operation on the leveled field, the horizontal ground is used as a reference surface, when the leveling plate is inclined forwards and backwards or leftwards and rightwards, namely the leveling plate is not parallel to the horizontal ground, at the moment, the leveling plate needs to be adjusted, so that the leveling surface (the surface where the bottom of the leveling plate is located) of the leveling plate is always parallel to the horizontal ground; when the leveling plate is tilted backwards, that is, the bottom of the front side of the leveling plate is lower than the bottom of the rear side of the leveling plate, taking the extension of the telescopic rod 613 of the angle adjusting cylinder 527 as an example (as shown in fig. 9, the hydraulic connection structure of the automatic adjusting cylinder and the linear driver 611 is the same as that of the angle adjusting cylinder 527, and is not repeatedly provided in the drawing), for convenience of description, the oil inlet of the three-way four-position proportional directional valve one 10 is a port P, the oil outlet of the three-way four-position proportional directional valve one 10 is a port T, one output port of the three-way four-position proportional directional valve one 10 is a port a, the other output port of the three-way four-position proportional directional valve two is a port B, the left end of the three-way four-position proportional directional valve one 10 is a port i, the right end of the three-way four-position proportional directional valve one 10 is a port ii, the controller controls the electromagnet one, the vane pump sucks oil in an oil tank 8, pressurized hydraulic oil enters a rod cavity of an angle adjusting cylinder 527 from a port P through a port B, the hydraulic oil in a rodless cavity of the angle adjusting cylinder 527 returns to the oil tank 8 from a port A through a port T, an expansion rod 613 of the angle adjusting cylinder 527 gradually retracts, the expansion rod 613 of the angle adjusting cylinder 527 drives a leveling plate to turn upwards anticlockwise, a gyroscope 520 detects the levelness of a horizontal part 519 in real time, namely the inclination angle of the horizontal part 519 in the front-back direction and the inclination angle of the horizontal part in the left-right direction, when the inclination angle of the horizontal part 519 in the front-back direction is a set threshold value, a controller controls a second electromagnet to be powered off, the port P, the port T, the port A and the port A are not communicated, and the expansion rod; when the leveling plate inclines forwards, namely the bottom of the front side of the leveling plate is lower than the bottom of the rear side of the leveling plate, the controller controls the first electromagnet to be electrified, the second electromagnet to be electrified, the port P is communicated with the port A, the port T is communicated with the port B, the vane pump sucks oil in the oil tank 8, pressurized hydraulic oil enters the rodless cavity of the angle adjusting cylinder 527 from the port P through the port A, the hydraulic oil in the rodless cavity of the angle adjusting cylinder 527 returns to the oil tank 8 from the port B through the port T, the oil pressure in the rodless cavity of the angle adjusting cylinder 527 is higher than the oil pressure in the rodless cavity, the telescopic rod 613 of the angle adjusting cylinder 527 extends gradually, the telescopic rod 613 of the angle adjusting cylinder 527 drives the leveling plate to turn downwards clockwise, the gyroscope 520 detects the levelness of the horizontal part 519 in real time, namely the front-back inclination angle and left-right inclination angle of the horizontal part 519, when the front-back, the controller controls the electromagnet to be powered off, the port P, the port T, the port A and the port A are not communicated, and the telescopic rod 613 of the angle adjusting cylinder 527 stops acting, so that the angle adjustment of the front and rear directions of the leveling plate is finished; meanwhile, when the leveling plate is inclined in the left-right direction, for example, when the leveling plate is inclined in the left direction, that is, the right side of the leveling plate is higher than the left side, if the horizontal support seat 514 is arranged at the position of the center of the horizontal portion 519 to the right, the telescopic rod 613 of the automatic horizontal cylinder 518 is controlled to retract, the principle for controlling the action of the automatic horizontal cylinder 518 is the same as that of the angle adjusting cylinder 527, which is not described herein again, the telescopic rod 613 of the automatic horizontal cylinder 518 drives the connecting rotating shaft 515 to move downwards, the rotating shaft 515 is connected to provide downward pressure for the support rod 517, the support rod 517 pushes the horizontal support seat 514 to swing downwards in the center of the front and rear support seats 513, the gyroscope 520 detects the levelness of the horizontal portion 519 in real time, and when the inclination angle of the horizontal portion; when the leveling plate inclines rightwards, namely the height of the right side of the leveling plate is lower than that of the left side, the telescopic rod 613 of the automatic horizontal cylinder 518 is controlled to extend out, the telescopic rod 613 drives the connecting seat 516 to move upwards, the connecting seat 516 drives the connecting rotating shaft 515 to move upwards, the connecting rotating shaft pulls the supporting rod 517 to move upwards, the supporting rod 517 drives the right side of the horizontal part 519 to swing upwards around a first horizontal rotating shaft 526 connected to a front supporting seat 513 and a rear supporting seat 513, so that the bottom of the leveling plate and the horizontal ground are always kept parallel to each other and are not influenced by the external environment or the working mode of a tractor, and in the leveling operation process, when the leveling plate which is adjusted to tilt backwards is turned upwards anticlockwise; after the angle adjustment is finished, the elastic pressure rod 507 applies downward pressure to the leveling plate, so that the leveling plate is always tightly attached to the ground, and the leveling effect is improved; in the process of rotary tillage leveling operation, a driver can control the hydraulic handle to extend or retract the extension cylinder 503 according to the size of a farmland and the position of an agricultural machine so as to achieve the purpose of leveling the width; meanwhile, the specific process of controlling the seed sowing frame 608 to descend is that the principle of controlling the action of the linear driver 611 is the same as that of the angle adjusting cylinder 527, and no further description is given here, the oil inlet amount and the oil outlet amount of the linear driver 611 are controlled, so that the telescopic rod 613 of the linear driver 611 continuously extends out, the telescopic rod 613 exerts a downward acting force on the upper movable rod 612, the upper movable rod 612 and the lower movable rod 610 push the rear connecting seat 609 to descend, the rear connecting seat 609 drives the seed sowing frame 608 to descend, the seed sowing frame 608 drives the seed sowing box 607, the supporting roller 601 and the supporting press roller 616 to descend, the distance range of the bottom sides of the supporting roller 601 and the supporting press roller 616, which are lower than the bottom side of the electric seeder, is 0-10mm, so that the bottom side of the electric seeder is basically level with the ground, that the ground-attached seeding is; when the soil covering device works, the motor 606 acts to control the rotation direction of the output shaft of the motor 606, so that when the cutting edge of the soil covering knife 617 is tangent to the ground, the stress direction of the soil covering knife 617 is opposite to the advancing direction of the walking device, the ditching shaft 615 and the soil covering shaft 618 are continuously rotated, the rotation of the ditching shaft 615 drives the ditching knife 619 to perform rotary motion around the radial center of the ditching shaft 615, the ditching knife 619 performs shallow ditch digging on the field, the depth of the shallow ditch is 1-3cm, the cutting edge of the ditching knife 619 is arc-shaped, grass slides down along the arc-shaped structure of the ditching knife 619 without accumulating on the ditching knife 619, so that the ditching resistance is reduced, the seed sowing device 621 acts, the supporting roller 601 and the supporting press roller 616 simultaneously rotate along the ground along with the advancing direction of the walking device and are both supported on the ground, so that seeds stably fall into ditches which are just dug along a seed falling opening 622, the soil covering shaft 618 drives the soil covering knife 617 to perform, the soil covering knife 617 breaks and throws backward soil on both sides of the shallow trench where seeds are just sown, because the depth of the trench is shallow, soil covering of the trench is realized when the broken soil is thrown backward, meanwhile, the ground where seeds are sown and covered with soil is pressed by the supporting and pressing roller 616, so that the land where seeds are sown is still flat, and the arrangement of the leveling device 5 provides a good level ground for the sowing mechanism 6, so as to provide a more stable seed dropping plane for sowing operation; during paddy field operation, at the moment, seeding operation is not needed, the seeding frame 608 can be lifted away from the ground, the expansion rod 613 of the expansion cylinder 503 is controlled to extend according to the leveling width, the expansion plate 502 is extended, and rotary tillage and leveling operation for a paddy field is performed; narrow-band seeding is realized in the embodiment, and the seeding width is 2-5 cm; the leveling device is used for leveling on the basis of rotary tillage, and can adjust the levelness of the leveling plate in the front-back direction and the left-right direction in real time, so that the leveling surface of the leveling plate is always attached to and parallel to the horizontal ground, the levelness is uniform, and the leveling effect is good; when the levelness of the leveling plate is adjusted, the angle adjusting cylinder 527 cannot generate torsion on the first connecting piece 511, when the angle in the front-back direction is adjusted, the angle adjusting cylinder rotates around the second horizontal rotating shaft 512, when the angle in the left-right direction is adjusted, the angle adjusting cylinder rotates around the first horizontal rotating shaft 526 by taking the center of the horizontal supporting seat 514 as a fulcrum, the front-back supporting seat 513 cannot generate torsion, and the service life of the structure for fastening the angle adjusting cylinder 527 is prolonged; the elastic pressure lever 507 presses the leveling plate to be tightly attached to the ground, so that the leveling effect is further improved; the stretching mechanism has compact structure, can adjust the leveling width in real time according to the actual condition of the farmland, and meets the requirement of leveling operation; the sowing operation is carried out on the basis of the leveling operation, the leveling device 5 provides a more leveled ground for the sowing mechanism 6, a stable seed falling plane is provided for the sowing operation, meanwhile, the sowing mechanism 6 realizes sowing in a ground-attaching mode, the combination arrangement of the supporting press roll 616 and the supporting roll 601 enables the electric seeder to be more stable in the basic ground-attaching sowing process, the sowing depth is ensured, a more stable seed falling plane is provided for the sowing, the seeds accurately fall into the shallow trench, the germination rate is high, and the germination is more orderly; the combination of the ditching cutter 619, the electric seeder and the earthing cutter 617 realizes the integrated action of ditching, seeding and earthing, reduces labor force, ensures that seeds can more accurately fall into ditches after ditching, further ensures the seeding depth, immediately covers the ditches after seeding, can realize the earthing of the ditches only by a small amount of broken soil due to the shallow ditches, and is convenient and reliable in earthing; the invention can be applied to the combined operation of rotary tillage, leveling and shallow trench digging seeding.

Example 2

As shown in fig. 10 to 12, the present embodiment is different from embodiment 1 in that two oppositely disposed ditching knives 619 are disposed in an axial direction of a ditching shaft 615 corresponding to seed dropping ports 622 of a seed sowing device 621 one by one, opposite sides of the two oppositely disposed ditching knives 619 are tangent to each other, the two oppositely disposed ditching knives 619 form a ditching knife group 614, and a soil covering knife 617 corresponding to a right rear side of each seed sowing device 621 is disposed on two outward sides of the ditching knife group 614 (as shown in fig. 11 or fig. 12); the embodiment realizes broadband sowing, and the sowing width is 5-10 cm; the embodiment can be applied to the work of shallow trench seeding and larger seeding width.

Example 3

As shown in fig. 13 and 14, the present embodiment is different from the embodiment 1 and the embodiment 2 in that a first deep groove knife 11 for draining a ditch is connected to the ditching shaft 615 between 2 pairs of ditching knife sets 614 corresponding to the center of the ditching shaft 615 in the length direction, and the lowest point of the rotation track of the first deep groove knife 11 is 8-12cm lower than the bottom side of the supporting roller 601;

in order to further compact the drainage ditch, the deep ditch device further comprises a second deep ditch knife 12 for opening the drainage ditch, in the front and rear direction, one side of the second deep ditch knife 12 is flush with the front side of the sowing box 607, the other side of the second deep ditch knife 12 extends towards the rear direction of the supporting and pressing roller 616, the second deep ditch knife 12 is arranged right behind the first deep ditch knife 11, one side of the second deep ditch knife 12 is fixedly connected to the bottom side of the sowing box 607, the rear part of the rack 1 is fixedly connected with a supporting frame 18, the other side of the second deep ditch knife 12 is fixedly connected with the supporting frame 18, the rear side of the second deep ditch knife 12 is provided with a pressing wheel 13 with adjustable height, and the bottom side of the second deep ditch knife 12 is not higher than the bottom side of the rotary circumference of the first deep ditch knife 11.

In order to realize the height adjustment of the pressing wheel 13, an adjusting seat 510 with a sliding cavity is connected on the supporting frame 18 at the rear side of the deep groove knife two 12, a connecting rod 15 capable of sliding along the sliding cavity is arranged in the adjusting seat 510, a fixed seat 14 is fixedly connected to the bottom of the connecting rod 15, the pressing wheel 13 is rotatably connected with the fixed seat 14, a plurality of adjusting holes one 16 are distributed in the connecting rod 15 in the height direction, and an adjusting hole two 17 corresponding to the adjusting holes one 16 is arranged on the adjusting seat 510.

Before work, the height of the pressing wheel 13 is adjusted according to the humidity of soil, the soil is wet, the connecting rod 15 slides upwards along the sliding cavity of the adjusting seat 510, and when the pressing wheel 13 is adjusted to be basically level with the bottom side of the deep groove knife II 12, the position of the pressing wheel 13 in the height direction is fixed by using bolts and nuts to penetrate through the adjusting hole II 17 and the adjusting hole I16; when the soil is dry, the connecting rod 15 slides downwards along the sliding cavity of the adjusting seat 510, and when the bottom side of the pressing wheel 13 is adjusted to be 1-2cm lower than the bottom side of the second deep furrow knife 12, the position of the pressing wheel 13 in the height direction is fixed by using bolts and nuts to penetrate through the adjusting holes 17 and the adjusting holes 16; when the deep ditch sowing machine works, the first deep ditch cutter 11 continuously rotates under the action of the ditching shaft 615 during sowing, the first deep ditch cutter 11 cuts a deep ditch in a soil layer, the second deep ditch cutter 12 ditches on the basis that the first deep ditch cutter 11 ditches, and the drainage ditch is compacted, so that the ditching work of the drainage ditch is realized.

The present invention is not limited to the above-mentioned embodiments, and two, three or more deep groove knives one 11 for drainage may be arranged on the ditching shaft 615 between 2 pairs of ditching knife sets 614 corresponding to the center of the ditching shaft 615 in the length direction.

Claims (13)

1. The utility model provides a rotary tillage is leveled compound workover rig of sowing that pastes ground which characterized in that: the rotary tillage device is arranged on the frame, the leveling device is arranged behind the rotary tillage device, and the seeding device is arranged behind the leveling device; the middle transmission case of the rotary tillage device is in transmission connection with a tractor, at least one rotary tillage shaft is in transmission connection with the middle transmission case, and the rotary tillage device is connected with the tractor; the seeding device comprises a liftable seeding frame, a seeding box with a containing cavity is fixedly connected to the seeding frame, a plurality of seed metering devices are distributed on the bottom of the seeding box in the length direction, the seed falling ports of the seed metering devices are right opposite to the ground, the front part of the seeding frame is rotatably connected with a supporting roller, the rear part of the seeding frame is rotatably connected with a supporting press roller, the seeding box is between the supporting roller and the supporting press roller, a ditching shaft is rotatably connected to the seeding frame between the seeding box and the supporting roller, a plurality of ditching cutter groups are distributed on the ditching shaft, at least one ditching cutter is distributed on the outer edge corresponding to the same rotation center of the ditching shaft, a soil covering shaft is rotatably connected to the seeding frame between the seeding box and the supporting press roller, and a plurality of soil covering cutters are distributed on the soil covering shaft; the lowest point of the rotation track of the ditching cutter is 1-3cm lower than the bottom side of the seed sowing device, and the lowest point of the rotation track of the earthing cutter is not higher than the lowest point of the rotation track of the ditching cutter; the bottom sides of the supporting roller and the supporting press roller are 0-10mm lower than the bottom side of the seed sowing device.

2. The rotary tillage, leveling and land-adhering seeding combined operation machine according to claim 1, characterized in that: the bottom side of the supporting roller is 2-10mm lower than the bottom side of the seed metering device, and the bottom side of the supporting press roller is 2-10mm lower than the bottom side of the seed metering device.

3. The rotary tillage, leveling and land-adhering seeding combined operation machine according to claim 1, characterized in that: and all the ditching knives arranged on the outer edge corresponding to the same rotation center of the ditching shaft form a ditching knife group.

4. The rotary tillage, leveling and land-adhering seeding combined operation machine according to claim 1, characterized in that: two ditching knives which are arranged oppositely are arranged in the axial direction of the ditching shaft corresponding to the seed dropping ports of the seed sowing device one by one, the opposite sides of the two ditching knives which are arranged oppositely are tangent, and the two ditching knives which are arranged oppositely form a ditching knife group.

5. A rotary tillage, leveling and land-adhering seeding combined operation machine according to claim 3 or 4, characterized in that: the ditching cutter is characterized in that the cutting edge of the ditching cutter is arc-shaped, the ditching cutter set corresponds to the seed dropping port of the seed sowing device one by one, the width of the ditching cutter set is not less than that of the seed dropping port, and at least one side of the ditching cutter set in the left and right direction is provided with a soil covering cutter.

6. The rotary tillage, leveling and land-adhering seeding combined operation machine according to claim 5, characterized in that: the seeding device further comprises a lifting mechanism, the lifting mechanism comprises a front connecting seat and a rear connecting seat opposite to the front connecting seat, the front connecting seat is fixedly connected with the rack, the top of the front connecting seat is hinged with the fixed end of a linear actuator, one end of an upper movable rod is hinged on the front connecting seat below the fixed end of the linear actuator, the other end of the upper movable rod is hinged with the rear connecting seat, the linear actuator is connected with a telescopic rod capable of doing reciprocating linear motion, the extending end of the telescopic rod is hinged with the upper movable rod, the lower part of the front connecting seat is hinged with one end of a lower movable rod, the other end of the lower movable rod is hinged with the lower part of the rear connecting seat, and the upper movable rod, the rear connecting seat, the upper; the elevating system is provided with 2 and sets up about seeding case central symmetry on length direction.

7. The rotary tillage, leveling and land-adhering seeding combined operation machine according to claim 6, characterized in that: in the left-right direction, one side at the top of the sowing frame is fixedly connected with a motor, an output shaft of the motor is connected with a driving wheel, the driving wheel is respectively connected with a driven wheel I and a driven wheel II in a transmission manner, the ditching shaft is connected with the driven wheel I, and the soil covering shaft is connected with the driven wheel II.

8. The rotary tillage, leveling and land-adhering seeding combined operation machine according to claim 6, characterized in that: the leveling device comprises a supporting beam, an angle adjusting cylinder and an automatic leveling cylinder, wherein the supporting beam is arranged on a frame, a planker capable of swinging up and down is further arranged on the frame corresponding to the front and back of the supporting beam, the planker comprises a horizontal part and an inclined part, the inclined part inclines backwards, a leveling plate parallel to the upper side of the horizontal part is arranged at the bottom of the inclined part, the center of the leveling plate is connected with one end of the angle adjusting cylinder where a telescopic rod is arranged, a front supporting seat and a rear supporting seat are arranged at the center of the top of the horizontal part, the fixed end of the angle adjusting cylinder is connected with the front supporting seat and the rear supporting seat, the upper side of the supporting beam is connected with the fixed end of the automatic leveling cylinder, one end of a supporting rod of the automatic leveling cylinder is fixedly connected at, the other end of the supporting rod is fixedly connected with a connecting rotating shaft which is perpendicular to the supporting rod, the connecting rotating shaft is rotatably connected to the connecting seat, and the horizontal supporting seat deviates from the center of the horizontal part in the length direction; the one end of rotationally connecting horizontal rotating shaft one on the supporting seat around, the other end of horizontal rotating shaft one rotationally is connected with connecting piece one, be connected with horizontal rotating shaft two on the connecting piece one, horizontal rotating shaft one is passed perpendicularly to horizontal rotating shaft two, the stiff end upper portion of angle modulation jar links firmly with connecting piece one through connecting piece two.

9. The rotary tillage, leveling and land-adhering seeding combined operation machine according to claim 8, characterized in that: the leveling device further comprises a pressing mechanism, the pressing mechanism comprises two lifting lugs arranged on the rear side of the leveling plate at intervals, a first horizontal fixing shaft is connected between the two lifting lugs, an adjusting seat is arranged on the upper side of the dragging plate, at least 1 pair of adjusting holes opposite to each other are arranged at the left end and the right end of the adjusting seat, the adjusting seat is fixedly connected with a second horizontal fixing shaft through the adjusting holes, the centers of the first horizontal fixing shaft and the second horizontal fixing shaft in the length direction are the same, the second horizontal fixing shaft is connected with one end of at least one elastic pressure rod, and the other end of the elastic pressure rod is connected with the first horizontal fixing shaft; the pressing mechanisms are provided with 2 pressing mechanisms which are symmetrically arranged relative to the center of the flattening plate in the length direction; the frame is provided with a vertical kidney-shaped groove, two ends of the horizontal part of the carriage are provided with sliding rods, and the sliding rods can slide up and down along the kidney-shaped groove.

10. The rotary tillage, leveling and land-adhering seeding combined operation machine according to claim 9, characterized in that: be equipped with the extension mechanism in the leveling plate, extend the mechanism including extending the jar, open the sliding tray that has left right direction to go up to run through on the leveling plate, the leveling plate that the center of sliding tray corresponds links firmly the backup pad in, hugs closely and is equipped with the extension board on the inner wall of leveling plate slidable, one side and the telescopic link place one end that extends the jar of backup pad are connected, and the extension board one end outwards is equipped with the fixed plate, the stiff end that extends the jar is connected with the fixed plate.

11. A rotary tillage, leveling and land adhering seeding combined operation machine according to any one of claims 1 to 4, characterized in that: at least one first deep groove cutter for draining a water channel is arranged on the ditching shaft between 2 pairs of ditching cutter groups corresponding to the center of the ditching shaft in the length direction, and the lowest point of the rotation track of the first deep groove cutter is 8-12cm lower than the bottom side of the supporting roller.

12. The rotary tillage, leveling and land-adhering seeding combined operation machine according to claim 11, wherein: the deep ditch device is characterized by further comprising a deep ditch knife II for digging a drainage ditch, wherein one side of the deep ditch knife II is flush with the front side of the sowing box in the front-back direction, the other side of the deep ditch knife II laterally supports the pressing roller to extend in the backward direction, the deep ditch knife II is arranged right behind the deep ditch knife I, one side of the deep ditch knife II is fixedly connected to the bottom side of the sowing box, the rear portion of the rack is fixedly connected with a supporting frame, the other side of the deep ditch knife II is fixedly connected with the supporting frame, a pressing wheel with adjustable height is arranged on the rear side of the deep ditch knife II, and the bottom side of the deep ditch knife II is not higher than the bottom side of the rotation circumference of the deep ditch knife I.

13. The rotary tillage, leveling and land-adhering seeding combined operation machine according to claim 12, wherein: be connected with the regulation seat that has the slip chamber on the support frame of two rear sides of deep furrow sword, be equipped with in the regulation seat and can be along the gliding connecting rod in slip chamber, the bottom of connecting rod has linked firmly the fixing base, the pinch roller rotationally is connected with the fixing base, a plurality of regulation holes one of connecting rod having arranged on the direction of height, it has the regulation hole two that corresponds with regulation hole one to open on the regulation seat.

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