CN218526686U - Turnover type dry farmland ridge culture drip irrigation intertillage weed extractor - Google Patents

Abstract

The utility model relates to an agricultural machine, a convertible dry farmland ridge culture is driped irrigation intertillage weeder promptly, including traction frame (1), plow standard (2) and coulter (3), its characteristics are: the two sets of the colters (3) are arranged at two ends of a connecting arm (7), the connecting arm (7) is arranged on a plough column through a cutter shaft (8) and can rotate around the axis of the cutter shaft, a positioning device (4) is arranged between the connecting arm and the plough column, when the two sets of the colters are respectively arranged at the upper position and the lower position, the connecting arm is rigidly connected with the plough column through the positioning device, and a land wheel (9) is arranged between the two sets of the colters. The beneficial effects are that: among the two sets of coulters, the lower coulter carries out intertillage weeding operation, when meeting a transverse water pipe, constraint is removed, the upper and lower sets of coulters are overturned and replaced, and the operation can be continued by crossing the transverse water pipe, so that the whole machine lifting is not needed, the speed is high, the energy consumption is low, the cost is low, the cultivation method is suitable for large and small ridges of crops such as corn and the like, and the problem of intertillage weeding of drip irrigation farmlands with the transverse water pipe is solved.

Description

Turnover type dry farmland ridge culture drip irrigation intertillage grass remover

Technical Field

The utility model relates to agricultural machinery, in particular to a turnover type dry land ridge culture drip irrigation intertillage weed extractor.

Background

Ridge culture is the main cultivation mode of dry field crops such as corn, and is mainly characterized by that the crops are planted in rows, and a certain distance is left between rows. Due to drought in the north, ridge culture is mainly carried out under ridges, namely crops are planted in furrows, and raised ridge platforms are arranged between rows. In the initial stage of crop growth, weeds are removed through intertillage, soil between rows is loosened, ridge platforms are gradually leveled, soil is hilled towards the roots of crops as much as possible, the crops grow on the ridge platforms, and the original ridge platforms become concave furrows. Clearly, intertilling and weeding are important to crop growth. In recent years, however, drip irrigation technology, i.e., a drip irrigation pipe, also called a drip tape, is installed between rows of crops in many dry farmlands for saving water. The drip irrigation tape brings inconvenience to mechanical intertillage and weeding. Especially for the planting mode of the current popularized 'big and small ridges', the difficulty is larger. Taking corn big and small ridges as an example, wherein the row spacing of the big ridges reaches more than 700mm, the row spacing of the small ridges is less than 400mm, and a plurality of drip irrigation belts are paved on the ridge platforms of the small ridges. The existing coulter is wide and cannot enter small ridges. In addition, a drip irrigation tape is arranged, so that mechanical intertillage and weeding are not easy. Therefore, people only need to spray the herbicide on the small ridges where the water pipes are laid. However, the herbicide can only weed but not loosen soil, has high cost and certain toxic and side effects, and is not suitable for being used in large quantities. In the future, a machine suitable for intertillage weeding among corn drip irrigation lines is developed by the agricultural technology popularization center of Koerqin region in Tongliao city in inner Mongolia. The plough coulter mainly adopts the coulter provided with two blades, the plough layer is inserted into the two sides of the drip irrigation tape, soil below the drip irrigation tape is cut and turned up under the traction of a tractor, the drip irrigation tape is not damaged, the plough coulter can weed and loosen soil, the offset drip irrigation tape can be pushed to a middle position, and the intertillage weeding problem of the drip irrigation dry field crops is well solved.

However, in use, it has been found that the above-described implements have certain limitations. The machine has good operation performance for drip irrigation belts laid along rows. However, in the field to be irrigated, not only are drip irrigation tapes laid along the ridges, but also one transverse water pipe is required at intervals of generally about 100 meters. A transverse water pipe is connected in series with a plurality of drip irrigation belts and supplies water to each drip irrigation belt. Under the condition of having a transverse water pipe, the machine can only be stopped in front of the transverse water pipe, then the hydraulic pump is started to drive the hydraulic oil cylinder to work, the whole machine is hoisted, and after the machine crosses the transverse water pipe, the machine falls down again to continue to work. Because the whole weight of the machine is very large, not only time is needed for hoisting, but also a lot of power is needed to be consumed, so that the working efficiency is greatly reduced, the working cost is greatly increased, and the machine becomes a new problem which needs to be solved urgently.

Disclosure of Invention

The utility model aims at the problem that above-mentioned machines exist, provide one kind and can not only carry out intertillage weeding operation between the dry farmland crop row of laying the drip irrigation zone to following the row, under the condition that has the horizontal pipe, need not lift by crane the complete machine moreover, can cross the horizontal pipe and continue the operation, the convertible dry farmland ridge culture that the operating efficiency improves by a wide margin, the energy consumption is showing the reduction drips irrigation intertillage weeder.

The above purpose is realized by the following technical scheme: develop a convertible dry farmland ridge culture and drip irrigation intertillage weeder, including traction frame, plow standard and coulter, the plow standard is installed on traction frame, and the coulter is installed on the plow standard, and its characteristics are: the two sets of coulters are arranged and are respectively arranged at two ends of the connecting arm; the connecting arm is arranged on the plough column through the cutter shaft and can rotate around the axis of the cutter shaft; a positioning device is arranged between the connecting arm and the plow standard, and when the two sets of coulters are respectively arranged at the upper position and the lower position, the connecting arm is rigidly connected with the plow standard through the positioning device; a land wheel is arranged between the two sets of coulters, the land wheel is integrally connected with the connecting arm, and the periphery of the land wheel is arranged in the outer edge of the coulter blade.

Two sets of coulters, each set of coulter all have two blades, support through two linking arms between two sets of coulters, and the both ends of each linking arm respectively are equipped with a slice blade, and two linking arms pass through the arbor and install respectively in the both sides of plow standard.

Be equipped with even board between the one end of linking arm and the blade, even the board is stretched to the outside tie, and the blade is connected to the outer end, and the blade outer end is to the inboard slope.

The positioning device is characterized in that a groove is formed in the outer side face of a connecting plate of the connecting arm, a sliding block is sleeved in the middle of the plough column, a boss capable of being inserted into the groove is arranged below the sliding block, a pull wire which is lifted upwards is arranged on the sliding block, the upper end of the pull wire is connected with the small end of the lever, the large end of the lever is hinged with a piston rod of a hydraulic oil cylinder, a fulcrum of the lever is connected with the plough column, and the hydraulic oil cylinder is hung on the rack.

And a pressure spring is arranged on the sliding block.

The land wheel is a sector wheel arranged between the two sets of coulters.

And an oil pump of the hydraulic oil cylinder is provided with an automatic control device.

The automatic control device is provided with a swing rod hung on the frame, the lower end of the swing rod is contacted with the surface of the plough layer, a horizontally arranged sleeve is arranged on the frame, a power supply, a touch switch and a pull rod are arranged in the sleeve, and the outer end of the pull rod is hinged with the swing rod.

The blade is hinged with the connecting plate through a penetrating rod, an outer limiting rod for limiting the outward swinging amplitude of the blade is arranged on the connecting plate on the outer side of the blade, and an inner limiting platform for limiting the inward swinging amplitude of the blade is arranged between the inner side of the blade and the connecting plate.

The two ends of the connecting arm are respectively provided with a set of coulter, each set of coulter is provided with a share, the plough posts are clamped at the two sides of the connecting arm and are connected with the connecting arm through cutter shafts, the upper sections of the two plough posts enclose a frame capable of accommodating the shares to pass through, the positioning device is characterized in that the plough posts are provided with positioning plates, the positioning plates are provided with jacks, the other plough posts are provided with inserting shafts matched with the jacks, and the inserting shafts can be driven by piston rods of hydraulic oil cylinders to pull and insert the jacks of the positioning plates.

The utility model has the advantages that: among the two sets of coulters, the lower coulter carries out intertillage weeding operation, when meeting the transverse water pipe, constraint is removed, the upper and lower sets of coulters are overturned and transposed, and the operation can be continued by striding over the transverse water pipe, so that the whole machine lifting is not needed, the speed is high, the energy consumption is low, the cost is low, the method is suitable for a large and small ridge cultivation mode of crops such as corn and the like, and the problem of intertillage weeding of a drip irrigation farmland with the transverse water pipe is solved.

Drawings

FIG. 1 is a front view of the first embodiment;

FIG. 2 is a left side view of the first embodiment;

FIG. 3 is a front view of the first embodiment of the part plow blade;

FIG. 4 is a left side elevational view of the first embodiment of the part plow blade;

FIG. 5 is a front view of an operating state of the component positioning device of the first embodiment;

FIG. 6 is a front view showing another operation state of the component positioning device of the first embodiment;

FIG. 7 is a schematic view showing a state of use of the first embodiment;

FIG. 8 is a schematic representation of the operation of the first embodiment;

FIG. 9 is a schematic view of the first embodiment of the plow blade beginning to tip;

FIG. 10 is a schematic view of the first embodiment plow blade being flipped over across the penstock;

FIG. 11 is a schematic view of the first embodiment plow blade tip turning ending continuing operation;

FIG. 12 is a front view of an automatic control structure of the second embodiment;

FIG. 13 is a simplified electrical schematic of the second embodiment;

FIG. 14 is a front elevational view of the fourth embodiment of the parts blade assembly;

FIG. 15 is a left side elevational view of the fourth embodiment of the parts plow blade assembly;

FIG. 16 is a schematic view showing an operating state of the fourth embodiment;

FIG. 17 is a schematic view showing another operation state of the fourth embodiment;

FIG. 18 is a front view of the fifth embodiment;

FIG. 19 is a left side view of the fifth embodiment;

fig. 20 is a use state diagram of the fifth embodiment.

It can be seen in the figure that: the device comprises a traction frame 1, a plough column 2, a plough coulter 3, a positioning device 4, a blade 5, a connecting plate 6, a connecting arm 7, a cutter shaft 8, a land wheel 9, a groove 10, a sliding block 11, a boss 12, a pressure spring 13, a pull wire 14, a lever 15, a hydraulic oil cylinder 16, a drip irrigation tape 17, a plough layer 18, a seedling 19, a transverse water pipe 20, a swing rod 21, a pull rod 22, a sleeve 23, a power supply 24, a touch switch 25, a penetrating rod 26, an outer limiting rod 27, an inner limiting table 28, a plough share 29, a frame 30, a positioning plate 31 and an inserting shaft 32.

Detailed Description

The first embodiment: fig. 1 and 2 show a turnover type dry field ridge culture drip irrigation intertillage grass remover, which comprises a traction frame 1, a plow standard 2 and a coulter 3, wherein the plow standard is arranged behind the traction frame, and the coulter is arranged at the lower part of the plow standard. As can be seen by combining the figures 3 and 4, the coulter 3 has two sets, one set is upward, and the other set is downward. Each set of coulter has two blades 5 oppositely mounted on a connecting plate 6. The connecting plate is arranged at one end of the connecting arm, extends horizontally outwards, the outer end part of the connecting plate is connected with the blade, the outer end of the blade inclines inwards, and a small turning angle is preferably arranged. The upper and lower sets of coulters are supported by two connecting arms 7, and two blades are respectively arranged at two ends of each connecting arm. That is, the upper end of one link arm is connected to one blade of the upper set of coulters and the lower end is connected to one blade of the lower set of coulters. Each set of coulter is explained to have two connecting plates, and each connecting plate is provided with a blade. The two connecting arms 7 are respectively arranged at the left side and the right side of the plough column through the cutter shaft 8, the cutter shaft and the connecting arms are preferably connected by adopting a key, and the two connecting arms after being arranged are rigidly connected. The cutter shaft is in running fit with the shaft hole of the plough column, so that the two connecting arms can synchronously rotate around the axis of the cutter shaft. Obviously, the connecting arm is inoperable only by rotation, and needs to be fixed in one position to operate. For this purpose, a variable positioning device 4 is provided between the connecting arm and the plough post. The positioning device can not only enable the connecting arm and the plow standard to be rigidly connected, but also remove the positioning function and allow the connecting arm to rotate together with the coulter.

Fig. 3, 4, 5, 6 illustrate a positioning device: the outer side of the connecting plate at one end of the connecting arm is provided with a groove 10, and for the connecting arm in a vertical state, the groove 10 is arranged on the upper side of the upper connecting plate and the lower side of the lower connecting plate. A sliding block 11 is sleeved in the middle of the plough column, and a lug boss 12 which can be inserted into the groove 10 is arranged below the sliding block. The slide block is provided with a pull wire 14 which is lifted upwards, the upper end of the pull wire is connected with the small end of a lever 15, the large end of the lever is hinged with a piston rod of a hydraulic oil cylinder 16, and a fulcrum of the lever is connected with a frame, and is exemplarily arranged on one side of a plough column in the figure. The hydraulic oil cylinder is hung on a frame, wherein the frame can be a traction frame or other fixed parts. Obviously, when two sets of coulters are sleeved on the upper portion and the other set is sleeved on the lower portion, namely the connecting arm is in an upright state, the sliding block falls to the lowest point through self weight, and the boss below the sliding block is just inserted into the groove of the connecting plate. At this time, the connecting arm is rigidly connected with the plow standard through the two points of the lug boss groove and the cutter shaft.

Of course, the forms of the lug boss and the groove are various, and the lug boss and the groove comprise various structures such as the insertion connection of the whole sliding block and the groove, and the like, as long as the coulter and the plow standard can be fixedly connected and the fixed connection can be released, the mechanisms for realizing the turning of the coulter belong to the same mechanisms. If the weight of the sliding block is not reliable enough, a pressure spring 13 can be arranged on the sliding block as shown in the figure, so that the fixing performance of the sliding block on the connecting arm can be ensured.

Furthermore, a land wheel is arranged between the two sets of coulters and is connected with the connecting arm into a whole. The ground wheel need not be a complete round wheel, but may be a sector wheel as shown, or may have only a few spokes. The circumference of the ground wheels is within the outer edge of the coulter blade and the ground wheels are near or in contact with the ground when the coulter is inserted into the zone 18. When the coulter is used for intertillage weeding, the resistance of the land wheel is very small or zero. When the coulter is turned over, the land wheel contacts the ground. When the two sets of coulters are horizontally arranged, the coulters can be turned continuously only by the power of the land wheels.

When the two sets of coulters are fixed at the positions of one upper plow blade and one lower plow blade, the intertillage weeding operation can be carried out under the traction of the tractor as shown in figure 7. For ease of understanding, fig. 8-11 describe the operating states of four nodes:

FIG. 8 illustrates the state of the implement for intertillage and weeding: the coulter 3 is arranged at the lower part of the plow standard 2, and the plow standard is arranged behind the traction frame 1. Two sets of coulters 3 are sleeved on the upper portion and one set is sleeved on the lower portion, and a sliding block boss of the positioning device 4 is connected with a groove of the coulter connecting plate. The piston rod of the hydraulic ram 16 is shown hinged to a horizontally disposed rod which bears against the large end of the lever 15. Therefore, a long rod can control a plurality of cultivator monomers, and the traction frame is provided with two oil cylinders. Two blades of the lower coulter are inserted into the plough layer 18 from two sides of the drip irrigation belt 17, and the coulter can perform intertillage weeding operation between two rows of seedlings 19 along with the walking of the tractor.

As can be seen in fig. 9, the plow blade encounters the cross hose 20 during travel. At this time, the driver just needs to start the hydraulic oil pump, the piston rod of the hydraulic oil cylinder 16 descends, the slide block 11 is pulled to ascend through the lever 15 and the pull wire 14, and the restraint on the coulter is released. Because the lower blade is deep into the plough layer at the moment and is subjected to the resistance of soil, the whole plough coulter is necessarily turned upwards along with the forward movement of the machine tool. I.e. the upper coulter is turned downwards and the lower coulter is turned upwards.

Next, as can be seen in fig. 10, the lower blade has rotated out of the ground, the upper coulter has not landed, and the two sets of coulters have no further power to turn over, except for inertial force. Obviously, the coulter cannot be guaranteed to complete the overturning action by the inertial force. At this time, the land wheel is already grounded and rotates. Because the land wheel, the connecting arm and the coulter are integrated, the rotation of the land wheel can drive the coulter to continuously overturn. After crossing the transverse water pipe, the upper coulter is turned to the lower side, and two blades are inserted into the plough layer from two sides of the drip irrigation tape.

Then as shown in fig. 11, the blade crossing the cross water pipe completes the soil-entering action, the plough coulter at the lower part originally rotates to the upper part, at this time, the hydraulic oil pump stops working, the slide block moves downwards by the dead weight or the pressure of the pressure spring, the lug boss at the lower part of the slide block is jointed with the groove on the connecting plate of the plough coulter, the whole plough coulter and the plough column form rigid connection, and the cultivation and weeding operation can be continued.

The second embodiment: the improvement is based on the first embodiment. As shown in fig. 12, the hydraulic cylinder and the hydraulic system are provided with automatic control devices. Obviously, the forms of such control means are numerous and the figures illustrate one: the automatic control device is provided with a swing rod 21 hung on the frame, the lower end of the swing rod can be provided with a soft roller, and the roller is contacted with the surface of the plough layer 18. A flat sleeve 23 is hinged on one side of a frame, such as a plow standard, a power supply 24, a touch switch 25 and a pull rod 22 are arranged in the sleeve, and the outer end of the pull rod is hinged with a swing rod.

During operation, the swing rod is moved forwards in front of the coulter and attached to the ground, after the transverse water pipe is touched, the swing rod swings to one side of the coulter to push the pull rod to move towards the inner side of the sleeve, the touch switch is pushed to be closed, the circuit is switched on, an acousto-optic signal can be sent out, an operator can start the hydraulic pump to remove the restraint of the coulter, and the coulter starts to overturn and can cross the transverse water pipe 20. The swing rod is also lifted up together with the sleeve pipe to cross the transverse water pipe under the blocking of the transverse water pipe.

Fig. 13 presents a simplest circuit, mainly illustrating that such a control device is possible. Of course, a control circuit capable of automatically starting the hydraulic system can be adopted, manual control is not needed, the hydraulic system can automatically work, and the method is easy to realize.

The fourth embodiment: the improvement is based on the previous embodiment. As previously described, each coulter has two blades mounted opposite each other below a flat web. It is known that the coulter works between two rows of seedlings, and the area occupied by the roots of the seedlings on both sides is large. The upper surface of the plough layer cut by the blade should be close to the seedling, and the lower surface of the plough layer can not cut the root system. Therefore, the soil section cut by the two blades should be a trapezoid with a wide upper part and a narrow lower part, which requires that the lower ends of the blades on both sides should be inclined inwards. However, it is desirable to have the lower ends of the blades on either side of the ground as far as possible when the blades are turned up from the ground level or just before the blades are inserted into the ground level as they are moved down from above the ground. Because of this, the grip on the drip tape can be reduced when the blade is lifted; the drip irrigation belt is not damaged when the blade is inserted downwards. It can be seen that this places different requirements on the angle of inclination of the blade. This requirement is difficult to achieve for a construction in which the blade is fixedly connected to the tie-plate. For this reason, the present example improves the structural relationship between the blade and the link plate. As shown in fig. 14 and 15, the blade 5 is not fixedly connected to the connecting plate 6, but is hinged by a through-rod 26, and can swing under the connecting plate. This, of course, requires that both the blade and the web be provided with an axial bore through which the rod can be passed. Obviously, the amplitude of the oscillation of the blade under the tie must be strictly limited. Thus, an outer limit rod 27 for limiting the outward swing range of the coulter is provided on the outer connecting plate 6 of the blade 5, and an inner limit table 28 for limiting the inward swing range of the coulter is provided between the inner side of the blade 5 and the connecting plate 6. Of course, the structural forms of the external limiting rod and the internal limiting platform are many, and only one of the structural forms is illustrated in the figures: the outer limiting rod is a screw or a pin shaft, penetrates to the outer side of the blade from the hole of the connecting plate, and limits the maximum position of the blade outer swing to the position vertically downward on the outer side. The inner limiting platform is a plate surface which extends inwards at the upper end of the blade, and the upper side surface of the inner limiting platform is abutted against the lower side surface of the connecting plate to form the maximum position of the inner swing of the lower end of the blade. Of course, the limiting mechanism is preferably adjustable, and can be adjusted appropriately according to specific conditions.

This type of plow blade is shown in connection with FIG. 16 in a position where it is either disengaged from the soil in an upward direction or is about to be inserted into the soil in a downward direction. In the upward operation, because the original cutting section is a trapezoid with a wide upper part and a narrow lower part, the blade can be unfolded under the outward push of the soil to be in a vertical state. Therefore, the resistance of the upward movement of the blade can be reduced, the original cutting section shape can not be greatly changed, and the drip irrigation tape is not easy to damage. When the blade is turned downwards from the upper part of the ground, namely the blade is about to be inserted into the ground, the blade can swing outwards under the action of self weight to be in a vertical state. Therefore, the plough layer can be inserted conveniently, and the drip irrigation belt can be kept farther. Since the position of the drip tape is adjusted by the coulter through inward pressing in the previous coulter cutting process, even the drip tape with slightly deviated original position can move to the central line position of the ridge. In the process of inserting the coulters downwards, the distance between the lower ends of the two coulters is increased, and the possibility of cutting the drip irrigation tape is extremely low and can be ignored.

As can be seen from the combination of fig. 17, after the blades are completely inserted into the plough layer, the lower ends of the two blades are inevitably drawn inwards under the action of the gravity and the soil resistance of the whole machine tool single body, the state shown in the figure is immediately restored, and the section of the plough layer cut by the two blades is in a trapezoid shape with a wide upper part and a narrow lower part. Therefore, the connection mode of the blade and the connecting plate is suitable for the requirement of the operation of the coulter.

Fifth embodiment: the machine of the embodiment solves the problem of farmland intertillage weeding operation of laying drip irrigation belts and transverse water pipes. However, for the non-laying drip irrigation tape and only the row spacing of the transverse water pipes, the agricultural requirements also change. At present, drip irrigation belts of crops such as corn and the like are all laid in an interlaced mode, the drip irrigation belt is laid between one row, and the drip irrigation belts do not need to be laid between adjacent rows. Particularly, in the planting mode of 'big and small ridges' of the corn in recent years, the drip irrigation belts are paved on the small ridges, and the drip irrigation belts are not paved on the big ridges. For the row spaces without drip irrigation tapes, deep ditches are preferably arranged between the row spaces while intertillage weeding, and soil in the ditches is turned to the roots of crops. For such agronomic requirements, the two-bladed coulter of the previous embodiment is difficult to implement, and it is sufficient to use a furrowing coulter with only one ploughshare. However, such a furrow plow blade has experienced similar difficulties due to the placement of transverse water pipes in the field. In order to solve the problem that the ditching coulter spans across the transverse water pipe, the embodiment refers to the structural principle of the previous embodiment, and provides the coulter which can span across the transverse water pipe by turning.

As shown in fig. 18 and 19, the machine also comprises a traction frame 1 which can be drawn with a tractor, a plow standard 2 is arranged on the traction frame, and a coulter is arranged at the lower part of the plow standard. The plough coulter is provided with two sets of plough coulters which are arranged at two ends of a connecting arm 7, a land wheel 9 is arranged between the two sets of plough coulters, the connecting arm is connected with a plough column 2 through a cutter shaft 8, and a variable positioning device 4 is arranged between the connecting arm and the plough column. The difference from the previous embodiment is: the two sets of coulters are provided with one ploughshare 29. Only one connecting arm 7 is provided, two plough columns 2 are provided, and the two plough columns are clamped at two sides of the connecting arm and connected through a cutter shaft 8. The upper sections of the two plough columns enclose a frame 30 which can accommodate a set of plough shares to pass through. The positioning device 4 has many forms, and the drawing exemplifies that a protruding positioning plate 31 is arranged on one side of the plough column, the positioning plate is provided with an inserting hole, and the other inserting shaft 32 matched with the inserting hole is driven by a piston rod of the hydraulic oil cylinder 16 to perform inserting and withdrawing actions. When the inserting shaft is inserted into the inserting hole, the swinging and the rotation of the connecting arm are limited, and the plough share below can carry out ditching operation. When the inserting shaft is pulled out of the inserting hole, the connecting arm can rotate, and the upper and lower sets of plough shares can be turned over to change positions, so that the plough shares can stride across the transverse water pipe.

The machine is suitable for ditching among lines without drip irrigation tapes laid along ridges, can be used for hilling the roots of crops through ditching, and can be used for weeding at the same time. When the drip irrigation belt is laid on the small ridges in the field of large and small ridges, the machines of the previous embodiments and the machine of the embodiment are arranged alternately as shown in fig. 20, the blade type coulter is used for intertillage weeding of the small ridges, and the machine of the embodiment is used for intertillage weeding of the large ridges. When the cross water pipe is encountered, the cross water pipe is spanned in a turnover mode, so that the whole machine is prevented from being lifted, energy and time are saved, and the effect is very obvious.

Claims (10)

1. The utility model provides a intertillage weeder is driped irrigation in convertible dry farmland ridge culture, includes traction frame (1), plow standard (2) and coulter (3), installs on traction frame (1) plow standard (2), and its characterized in that is installed on plow standard (2) in coulter (3): the plough coulter is characterized in that the two sets of plough coulters (3) are respectively installed at two ends of the connecting arm (7), the connecting arm (7) is installed on the plough column (2) through the cutter shaft (8) and can rotate around the axis of the cutter shaft (8), the positioning device (4) is arranged between the connecting arm (7) and the plough column (2), when the two sets of plough coulters (3) are respectively arranged at the upper position and the lower position, the connecting arm (7) is rigidly connected with the plough column (2) through the positioning device (4), the land wheel (9) is arranged between the two sets of plough coulters (3), the land wheel (9) is integrally connected with the connecting arm (7), and the periphery of the land wheel (9) is arranged in the outer edge of the plough coulter (3).

2. The roll-over type dry farmland ridge culture drip irrigation intertillage grass remover according to claim 1, characterized in that: in the middle of two sets of coulters (3), each set of coulter (3) all has two blades (5), supports through two linking arms (7) between two sets of coulters (3), and a slice blade (5) are respectively equipped with at the both ends of every linking arm (7), and two linking arms (7) are installed respectively in the both sides of share (2) through arbor (8).

3. The roll-over type dry farmland ridge culture drip irrigation intertillage grass remover according to claim 2, characterized in that: a connecting plate (6) is arranged between one end of the connecting arm (7) and the blade (5), the connecting plate (6) extends horizontally to the outer side, the outer end part of the connecting plate is connected with the blade, and the outer end of the blade inclines to the inner side.

4. The roll-over type dry farmland ridge culture drip irrigation intertillage grass remover according to claim 1, characterized in that: the positioning device (4) is characterized in that a groove (10) is formed in the outer side face of a connecting plate (6) of a connecting arm (7), a sliding block (11) is sleeved in the middle of the plough column (2), a boss (12) capable of being inserted into the groove (10) is arranged below the sliding block (11), a pull wire (14) which is lifted upwards is arranged on the sliding block (11), the upper end of the pull wire (14) is connected with the small end of a lever (15), the large end of the lever (15) is hinged with a piston rod of a hydraulic oil cylinder (16), the fulcrum of the lever is connected with the plough column, and the hydraulic oil cylinder (16) is hung on the rack.

5. The roll-over type dry farmland ridge culture drip irrigation intertillage grass remover according to claim 1, characterized in that: the land wheel (9) is a sector wheel arranged between the two sets of coulters (3).

6. The roll-over type dry farmland ridge culture drip irrigation intertillage grass remover according to claim 4, characterized in that: a pressure spring (13) is arranged on the sliding block (11).

7. The roll-over type dry farmland ridge culture drip irrigation intertillage grass remover according to claim 4, characterized in that: and an oil pump of the hydraulic oil cylinder (16) is provided with an automatic control device.

8. The roll-over type dry farmland ridge culture drip irrigation intertillage grass remover according to claim 7, characterized in that: the automatic control device is provided with a swing rod (21) hung on the rack, the lower end of the swing rod (21) is in contact with the surface of the plough layer, a horizontally arranged sleeve (23) is arranged on the rack, a power supply (24), a touch switch (25) and a pull rod (22) are arranged in the sleeve (23), and the outer end of the pull rod (22) is hinged with the swing rod (21).

9. The roll-over type dry farmland ridge culture drip irrigation intertillage grass remover according to claim 3, characterized in that: the blade (5) is hinged with the connecting plate (6) through a penetrating rod (26), an outer limiting rod (27) for limiting the outward swinging amplitude of the coulter is arranged on the connecting plate (6) on the outer side of the blade (5), and an inner limiting platform (28) for limiting the inward swinging amplitude of the coulter is arranged between the inner side of the blade (5) and the connecting plate (6).

10. The roll-over type dry farmland ridge culture drip irrigation intertillage grass remover according to claim 1, characterized in that: the improved plough coulter is characterized in that two ends of the connecting arm (7) are respectively provided with one set of plough coulter (3), each set of plough coulter (3) is provided with a plough share (29), the plough posts (2) are clamped on two sides of the connecting arm (7) and are connected with the connecting arm (7) through the cutter shaft (8), the upper sections of the two plough posts (2) are enclosed to form a frame (30) capable of accommodating the plough shares (29) to pass through, the positioning device (4) is provided with positioning plates (31) on the plough posts (2), the positioning plates (31) are provided with insertion holes, the other part is provided with an insertion shaft (32) matched with the insertion holes, and the insertion shaft (32) can be driven by a piston rod of the hydraulic oil cylinder (16) to perform inserting and withdrawing actions on the insertion holes of the positioning plates (31).

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