Seeding and water injection integrated precision-adjustable hill planter

Abstract

The invention discloses a sowing and water injection integrated adjustable precision hill-drop planter which comprises a double-row hill-drop planter and a synchronous precision water injection system, the double-row hill-drop planter is hung on a machine tool through a hanging frame, a main shaft is rotatably mounted on the hanging frame, and the double-row hill-drop planter comprises two hill-drop planter wheel assemblies mounted on the main shaft; each hole sowing wheel assembly comprises a seed box, a mounting end cover, a seed taking device, a seed metering device and a hole forming mechanism, the seed metering device comprises a seed metering wheel body, and a plurality of seed guide pipes are uniformly distributed on the outer circumferential surface of the seed metering wheel body in the circumferential direction; the hole forming mechanism comprises a plurality of groups of hole forming components, each group of hole forming components comprises an extrusion plate, a telescopic pipe and a hole forming claw, the telescopic pipes of the plurality of groups of hole forming components are slidably sleeved on a plurality of seed guide pipes of the seed metering wheel body in a one-to-one correspondence manner, and the corresponding telescopic pipes of the plurality of groups of hole forming components are driven by a row spacing regulator to slide along the respective seed guide pipes; therefore, the sowing plant spacing can be adjusted. The device has the advantages that flexible stepless adjustment of hole forming plant spacing and precise water injection of linkage adjustment of the hole forming plant spacing are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural sowing equipment, and in particular to a sowing and water injection integrated adjustable precision seeding machine. Background Art

[0002] Bean crops are one of the important food crops planted in dry land in the north and south, with a wide planting area and important economic value. At present, bean crops are still sown manually in most remote areas or rural areas. Manual sowing faces many problems. First, it is impossible to accurately grasp the depth and density of planting. Secondly, it consumes a lot of manpower and material resources. Each link in the sowing process, such as arable land, sowing, and watering, requires a lot of time and energy. Although mechanical sowing can effectively solve some of the problems of manual sowing, it still faces many shortcomings. The existing sowing machines on the market are mainly drill seeders, but because of their generally large size or high price, they are difficult to apply to the sowing of small plots of rural fields. Most of the current hole sowing machines cannot adjust the distance of the hole. Even if they can be adjusted, the entire set of hole-forming devices needs to be replaced, which is costly and time-consuming. Secondly, the design of the hole-forming claws of the existing hole sowing machines generally has problems such as soil blocking the hole-forming claws or the hole-forming claws are not opened in time and are difficult to open, resulting in the inability of the hole-forming claws to broadcast seeds, resulting in missed sowing, which greatly affects the sowing quality. In addition, after the mechanical sowing is completed, manual watering is still required, which still consumes manpower and material resources. In summary, the existing mechanical seeders still have defects such as low intelligence, inability to flexibly change the hole distance according to the different growth needs of crops, inability to open the hole claws autonomously, and need for manual irrigation after sowing. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an integrated adjustable precision hole seeder for sowing and water injection, so as to achieve flexible and stepless adjustment of the hole spacing.

[0004] The present invention is achieved through the following technical solutions:

[0005] A sowing and watering integrated adjustable precision seed drill comprises a double-row seed drill, which is mounted on a machine tool through a mounting frame, on which a main shaft extending left and right is rotatably mounted, and the double-row seed drill comprises two seed drill wheel assemblies mounted on the main shaft in a left-right symmetrical manner, wherein the opposite side of the two seed drill wheel assemblies is an inner side, and the opposite side is an outer side;

[0006] Each hole-seeding wheel assembly includes a seed box, an installation end cover, a seed taker, a seed metering device and a hole-forming mechanism. The seed taker is rotatably mounted on the main shaft, the installation end cover is fixed on the outside of the seed taker, the seed box is fixed on the outside of the installation end cover, a seed chamber is arranged inside the seed taker, a notch is opened at the bottom of the seed taker as a seed outlet, and guide channels that are inclined downward and connected to each other are opened on the side walls of the seed box and the installation end cover, respectively, and the guide channels connect the inner cavity of the seed box with the seed chamber; the seed metering device includes a seed wheel body located at the periphery of the seed taker, the inner side of the seed wheel body is fixedly mounted on the main shaft through the seed end cover, a plurality of seed guide tubes are evenly distributed along the circumferential direction on the outer circumferential surface of the seed wheel body, each seed guide tube extends outward along the radial direction of the seed wheel body, and a plurality of seed guide tubes are evenly distributed along the circumferential direction inside the circumferential surface of the seed wheel body An inoculation box is used to receive seeds dropped from the seed removal outlet of the seed remover. Multiple inoculation boxes are connected to multiple seed guide tubes in a one-to-one correspondence. The hole-forming mechanism includes multiple groups of hole-forming assemblies. Each group of hole-forming assemblies includes an arc-shaped extrusion plate and a telescopic tube and a hole-forming claw fixed on both sides of the extrusion plate. The extrusion plates of the multiple groups of hole-forming assemblies together form an extrusion ring. The telescopic tubes of the multiple groups of hole-forming assemblies are slidably mounted on the multiple seed guide tubes of the seed wheel body in a one-to-one correspondence. Two plant spacing adjusters corresponding to the two hole-seeding wheel assemblies are also provided on the main shaft. The corresponding telescopic tubes of the multiple groups of hole-seeding assemblies are driven by the plant spacing adjusters to slide along their respective seed guide tubes, thereby adjusting the circumferential spacing of the hole-forming claws of the multiple groups of hole-seeding assemblies, thereby adjusting the sowing plant spacing.

[0007] As a preferred embodiment of the above-mentioned hole-seeding machine, the plant spacing adjuster includes an adjusting ring slidably mounted on the main shaft, a plurality of connecting rods are hinged on the adjusting ring along the circumferential direction, and an adjusting positioning connecting rod is fixed on the telescopic tubes of the multiple hole-forming components of each hole-forming mechanism, and the adjusting positioning connecting rod extends along the axis of the main shaft. The other ends of the multiple connecting rods on the adjusting ring are hinged to the inner ends of the multiple adjusting positioning connecting rods of the corresponding hole-forming mechanism in a one-to-one manner, and the adjusting ring is driven to move axially along the main shaft through the plant spacing adjustment drive mechanism, thereby driving the multiple telescopic tubes of the corresponding hole-forming mechanism to slide along their respective seed guide tubes.

[0008] As a preferred embodiment of the above-mentioned hole seeder, the plant spacing adjustment drive mechanism is a push-pull electric cylinder.

[0009] As a preferred embodiment of the above-mentioned hole-seeding machine, in the hole-forming component, the hole-forming claw is formed by a fixed claw and a movable claw combined to form a complete inverted cone-shaped shell, and the pointed end of the hole-forming claw faces downward, the upper end of the fixed claw is fixed on the extrusion plate, the upper end of the movable claw is hinged to the upper end of the fixed claw through a hinge sleeve and a torsion spring, a lever is fixed on the hinge sleeve at the upper end of the movable claw, and the outer section of the lever is bent in a Z shape. In a natural state, under the action of the torsion spring, the movable claw fits with the fixed claw so that the hole-forming claw is in a closed state, and when the outer end of the lever is squeezed by an external force, the movable claw will be driven to rotate in a direction away from the fixed claw, so that the hole-forming claw opens.

[0010] As a preferred embodiment of the above-mentioned hole seeder, a vertically extending slide groove is provided on the outer side of the mounting end cover, and an autonomous opening regulator is slidably arranged in the slide groove. The autonomous opening regulator comprises a mounting seat, a slide rail fixed on the top of the mounting seat, an adjusting track fixed on one side of the mounting seat, and an extrusion block fixed on the bottom of the mounting seat. The slide rail extends vertically and slidably cooperates with the slide groove. The adjusting track is located below the mounting end cover, and an arc groove concentric with the main shaft is opened on the inner side of the adjusting track. The outer end of the adjusting positioning connecting rod on the telescopic tube is an embedded end, and the embedded end of the adjusting positioning connecting rod of the hole forming component located below in the hole forming mechanism is embedded in the arc groove of the adjusting track and can slide in the arc groove. With the rotation of the seeding wheel body, the multiple sets of hole forming components of the hole forming mechanism are driven to rotate together. When the hole forming component rotates to the bottom, the outer end of the lever of the hole forming claw is squeezed by the extrusion block to open the hole forming claw.

[0011] As a preferred embodiment of the above-mentioned hole-seeding machine, each hole-seeding wheel assembly also includes a synchronous precision water injection system, which includes a hard water injection pipe, a water pipe mounting block is fixed on the outside of the seed box, a guide channel extending forward and backward is opened on the water pipe mounting block, the hard water injection pipe is slidably installed in the guide channel of the water pipe mounting block, the inlet end of the hard water injection pipe is connected to the water pump through a soft water pipe, and the outlet end of the hard water injection pipe is connected to a water outlet elbow through a solenoid valve, and the water outlet elbow is connected to a water outlet head after bending downward. The hard water injection pipe is driven to move forward and backward in the guide channel of the water pipe mounting block by a water pipe driving mechanism, so as to adjust the front and rear position of the water outlet head.

[0012] As a preferred embodiment of the above-mentioned hole seeder, the synchronous precision water injection system also includes a water injection detection and leveling positioning mechanism, which includes a positioning plate, an L-shaped balance bar, and a positioning pulley group. The positioning plate is installed on the machine, and a positioning groove extending in the front-to-back direction is opened on the positioning plate. The positioning pulley group includes a positioning cylinder and positioning pulleys fixed at the upper and lower ends of the positioning cylinder. The positioning cylinder slides with the positioning groove of the positioning plate and can only slide back and forth along the positioning groove. The two positioning pulleys are respectively located on the upper and lower sides of the positioning plate. The horizontal rod of the L-shaped balance bar extends in the front-to-back direction and the rear end is fixed to the outside of the seed box. The vertical rod of the L-shaped balance bar is located at the front end of the horizontal rod and slides upward to pass through the inner hole of the positioning cylinder.

[0013] As a preferred embodiment of the above-mentioned seed drill, the mounting frame includes a mounting crossbeam and a mounting frame body. The mounting crossbeam extends left and right and is rotatably mounted on the machine. The main shaft is connected to the rear and lower part of the mounting crossbeam through the mounting frame body. A crossbar extending left and right is provided on the mounting frame body. A lifting electric cylinder is provided below the crossbar. The cylinder body of the lifting electric cylinder is hinged to the machine. The piston rod of the lifting electric cylinder is hinged to the crossbar. By extending and retracting the piston rod of the lifting electric cylinder, the mounting frame is driven to rotate around the axis of the mounting crossbeam, thereby driving the main shaft and the double-row seed drill installed on the main shaft to rotate together.

[0014] As a preferred embodiment of the above-mentioned hole seeder, the synchronous precision water injection system also includes a precision water injection detection device, which includes a Hall element and a plurality of electromagnetic sheets. The Hall element is fixed on the bottom inner side of the mounting end cover, and the plurality of electromagnetic sheets are installed at the edge of the outer side of the seed wheel body and are evenly distributed along the circumference of the seed wheel body. The plurality of electromagnetic sheets correspond one by one to the plurality of seed guide tubes on the seed wheel body. When the electromagnetic sheets rotate to the bottom with the seed wheel body, they are opposite to the sensing end of the Hall element.

[0015] As a preferred embodiment of the above-mentioned hole seeder, the seed remover includes a seed removing wheel rotatably mounted on a main shaft, the seed chamber is arranged inside the seed removing wheel, the bottom of the seed chamber is open and a seed ring is rotatably mounted thereon, a plurality of seed removing holes are evenly distributed along the circumference on the outer circumferential surface of the seed ring, the seed removing holes are used to receive the seeds in the seed chamber, and as the seed ring rotates, the seeds are brought out of the seed chamber and fall through the seed removing outlet below; a brush is also provided obliquely above the seed ring, the brush is rotatably mounted in the seed chamber and rotates in the same direction as the seed ring, and the bristles of the brush are in contact with the outer circumferential surface of the seed ring.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The present invention provides an integrated adjustable precision hole seeder for sowing and water injection, which adopts a set of independently designed plant spacing regulators composed of an adjusting ring and a connecting rod mechanism, and can realize stepless adjustment of the hole spacing, that is, the hole spacing of two adjacent hole-forming claws of the hole-seeding wheel assembly can be adjusted to any parameter within an adjustable range according to crop planting needs, which greatly improves the sowing application range of the machine. Most of the existing hole seeders are fixed in plant spacing or have extremely complicated steps for changing the plant spacing. The hole seeder with stepless adjustment of the plant spacing designed by the present invention fills the gap in this field on the market.

[0018] 2. The present invention provides an integrated adjustable precision hole-seeder for sowing and water injection, which is designed with a set of self-opening regulators that are adjusted in conjunction with changes in plant spacing, ensuring that the self-opening function of the hole-forming claws can still be carried out normally after the plant spacing is adjusted and the hole-forming sowing can continue. The design of the self-opening regulator realizes the linkage adjustment of the self-opening of the hole-forming claws with the plant spacing adjustment.

[0019] 3. The present invention provides an integrated adjustable precision hole seeder for sowing and watering, which is designed with a telescopic and adjustable synchronous precision watering system that is linked and adjusted with the change of plant spacing, so as to meet the requirements of multiple crop planting modes and ensure that there will be no missed sowing, and no subsequent manual irrigation is required; while improving the sowing quality and efficiency of crops, it can also save a lot of manpower and material resources. The linked synchronous precision watering system can realize the precise hole positioning, precision watering and linkage positioning of the watering system with plant spacing adjustment through the designed water injection detection leveling positioning mechanism and precision water injection detection device, which is specifically embodied as follows:

[0020] Precise hole location: To ensure that the hole-seeker can accurately locate the hole and inject water through the water injection system after the hole is formed, the Hall element and the electromagnetic sheet in the precision water injection detection device are reasonably placed, and the water injection detection leveling and positioning mechanism is used to ensure that the detection element, i.e. the Hall element, is fixed at the lower end of the installation end cover to keep the same position, so that the water injection point always coincides with the hole, and accurate hole location is achieved;

[0021] Precision water injection: The controller controls the opening time of the solenoid valve to achieve precise control of the single water injection amount or adjust the single water injection amount of the water pump to achieve precision water injection;

[0022] Linked positioning with plant spacing adjustment: The controller controls the plant spacing adjuster and the side electric cylinder of the water injection system to realize the change of hole spacing. At the same time, the side electric cylinder drives the hard water injection pipe to synchronously control the change of water outlet point, so that the hole and water injection point always coincide with each other. In this way, the linkage adjustment of the telescopic adjustable water injection system with the change of plant spacing adjuster is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0024] Figure 2 It is a side view of the present invention.

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the double-row hole seeder of the present invention.

[0026] Figure 4 It is a structural schematic diagram of the mounting frame of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the hole broadcast wheel assembly of the present invention.

[0028] Figure 6 It is a schematic diagram of the internal structure of the hole broadcast wheel assembly of the present invention.

[0029] Figure 7 It is a structural schematic diagram of a seed box of the present invention.

[0030] Figure 8 It is a structural schematic diagram of the installation end cover of the present invention.

[0031] Fig. 9 It is a structural schematic diagram of a seed extractor of the present invention.

[0032] Fig.10 It is a structural schematic diagram of the seeding ring of the present invention.

[0033] Fig.11 It is a structural schematic diagram of the seed metering device of the present invention.

[0034] Fig.12It is a structural schematic diagram of the seeding transmission system of the present invention.

[0035] Fig.13 It is a schematic structural diagram of the cavitation component of the present invention.

[0036] Fig.14 It is a structural schematic diagram of the cavitation claw of the present invention.

[0037] Fig.15 It is a schematic diagram of the disassembled structure of the cavitation claw of the present invention.

[0038] Fig.16 It is a structural schematic diagram of the autonomous opening regulator of the present invention.

[0039] Fig.17 It is a structural schematic diagram of the plant spacing regulator of the present invention.

[0040] Fig.18 It is a structural schematic diagram of the water injection detection leveling and positioning mechanism of the present invention.

[0041] Fig.19 It is a structural schematic diagram of the positioning pulley block of the present invention.

[0042] Fig. 20 It is a structural schematic diagram of the synchronous precision water injection system of the present invention.

[0043] Fig.21 It is a structural schematic diagram of the precision water injection detection device of the present invention.

[0044] Fig. 22 It is a side sectional view of the assembly of the seed box, the mounting end cover and the seed taker of the present invention.

[0045] Numbers in the figure: 1 mounting frame, 2 crawler, 3 main shaft, 4 seeding wheel assembly, 5 mounting crossbeam, 6 mounting frame body, 7 crossbeam bearing seat, 8 mounting bottom plate, 9 main shaft bearing seat, 10 cross bar, 11 lifting electric cylinder, 12 seed box, 13 mounting end cover, 14 seed taker, 15 seed rower, 16 seed forming mechanism, 17 seed chamber, 18 seed taking outlet, 19 material guide channel, 20 seed row wheel body, 21 seed row end cover, 22 seed guide tube, 23 inoculation box, 24 seed forming assembly, 25 extrusion plate, 26 telescopic tube, 27 seeding claw, 28 plant spacing adjuster, 29 seed wheel, 30 seed row ring, 31 seed taking hole, 32 brush, 33 main shaft gear, 34 transmission gear, 35 seed row ring gear, 36 change gear, 37 brush gear, 38 adjustment ring, 39 connecting rod, 40 adjustment positioning connecting rod, 41 push-pull electric cylinder, 42 mounting box, 43 fixed claw, 44 movable claw, 45 hinge sleeve, 46 lever, 47 slide groove, 48 self-opening regulator, 49 mounting seat, 50 slide rail, 51 adjustment rail, 52 extrusion block, 53 arc groove, 54 embedded end, 55 hard water injection pipe, 56 water pipe mounting block, 57 soft water pipe, 58 water pump, 59 bracket, 60 water tank, 61 solenoid valve, 62 water outlet elbow, 63 water outlet head, 64 side electric cylinder, 65 fastening sleeve, 66 positioning plate, 67 L-type balance bar, 68 positioning pulley block, 69 positioning groove, 70 Hall element, 71 electromagnetic sheet. DETAILED DESCRIPTION

[0046] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0047] See also Figures 1 to 22 The present embodiment discloses a sowing and watering integrated adjustable precision seed drill, comprising a double-row seed drill, which is mounted on a machine tool through a mounting frame 1. In the present embodiment, the machine tool is a crawler vehicle 2, and the double-row seed drill is mounted behind the crawler vehicle 2. A main shaft 3 extending left and right is rotatably mounted on the mounting frame 1, and the double-row seed drill comprises two seed drill wheel assemblies 4 mounted on the main shaft 3 in a left-right symmetrical manner, and the opposite side of the two seed drill wheel assemblies 4 is the inner side, and the opposite side is the outer side.

[0048] The mounting frame 1 includes a mounting crossbeam 5 and a mounting frame body 6. The mounting crossbeam 5 extends left and right and is rotatably mounted on the machine through two left and right crossbeam bearing seats 7. The main shaft 3 is connected to the rear and lower part of the mounting crossbeam 5 through the mounting frame body 6. Two left and right mounting base plates 8 are provided at the bottom of the mounting frame body 6. Spindle bearing seats 9 are respectively fixed on the two mounting base plates 8. The main shaft 3 is rotatably mounted on the two spindle bearing seats 9. A cross bar 10 extending left and right is provided on the mounting frame body 6. A lifting electric cylinder 11 is provided below the cross bar 10. The cylinder body of the lifting electric cylinder 11 is hinged on the machine, and the piston rod of the lifting electric cylinder 11 is hinged to the cross bar 10. The piston rod of the lifting electric cylinder 11 is extended and retracted, thereby driving the mounting frame 1 to rotate around the axis of the mounting crossbeam 5, thereby driving the main shaft 3 and the double-row seed drill installed on the main shaft 3 to rotate together.

[0049] When the piston rod of the lifting electric cylinder 11 is extended or retracted, it will push the mounting frame body 6 upward or pull it downward, so that the mounting frame body 6 rotates relative to the beam bearing seat 7 through the mounting crossbeam 5 fixed at the upper end, that is, the lifting electric cylinder 11 drives the mounting frame body 6 to rotate along the axis of the mounting crossbeam 5, thereby lifting or lowering the main shaft 3, and then driving the double-row seed drill installed on the main shaft 3 to be lifted or lowered together.

[0050] Each hole planting wheel assembly 4 includes a seed box 12, an installation end cover 13, a seed taker 14, a seed meter 15 and a hole forming mechanism 16. The seed taker 14 is rotatably mounted on the main shaft 3, the installation end cover 13 is fixed to the outside of the seed taker 14, the seed box 12 is fixed to the outside of the installation end cover 13, a seed chamber 17 is provided inside the seed taker 14, a notch is provided at the bottom of the seed taker 14 as a seed outlet 18, and the side walls of the seed box 12 and the installation end cover 13 are respectively provided with inner side downwardly inclined The material guide channel 19 is connected to the seed box 12 and the seed chamber 17. The seeding device 15 includes a seeding wheel body 20 located outside the seeding device 14. The inner side of the seeding wheel body 20 is fixedly mounted on the main shaft 3 through a seeding end cover 21. A plurality of seed guide tubes 22 are evenly distributed along the circumferential direction on the outer circumferential surface of the seeding wheel body 20. Each seed guide tube 22 extends outward along the radial direction of the seeding wheel body 20. There are multiple inoculation boxes 23, which are used to receive seeds dropped from the seed outlet 18 of the seed taker 14. The multiple inoculation boxes 23 are connected to the multiple seed guide tubes 22 in a one-to-one correspondence; the hole-forming mechanism 16 includes multiple groups of hole-forming components 24, each group of hole-forming components 24 includes an arc-shaped extrusion plate 25 and a telescopic tube 26 and a hole-forming claw 27 fixed on both sides of the extrusion plate 25, the extrusion plates 25 of the multiple groups of hole-forming components 24 together form an extrusion ring, and the telescopic tubes 26 of the multiple groups of hole-forming components 24 are slidably mounted on the multiple seed guide tubes 22 of the seed wheel body 20 in a one-to-one correspondence. The main shaft 3 is also provided with two plant spacing adjusters 28 corresponding to the two hole-seeding wheel components 4 respectively. The plant spacing adjusters 28 drive the corresponding telescopic tubes 26 of the multiple groups of hole-forming components 24 to slide along their respective seed guide tubes 22, so as to adjust the circumferential spacing of the hole-forming claws 27 of the multiple groups of hole-forming components 24, thereby adjusting the sowing plant spacing.

[0051] Among them, the seed removal device 14 includes a seed removal wheel 29 rotatably mounted on the main shaft 3, and the seed chamber 17 is arranged inside the seed removal wheel 29. The bottom of the seed chamber 17 is open and a seed ring 30 is rotatably installed. A plurality of seed removal holes 31 are evenly distributed along the circumferential direction on the outer circumferential surface of the seed ring 30. The distribution of the plurality of seed removal holes 31 on the seed ring 30 can be set as follows: the plurality of seed removal holes 31 are arranged in a plurality of rows along the circumferential direction of the seed ring 30, and each row of seed removal holes 31 includes two seed removal holes 31 arranged along the axial direction of the seed ring 30; the seed removal holes 31 are used to receive the seeds in the seed chamber 17, and as the seed ring 30 rotates, the seeds are brought out of the seed chamber 17 and fall through the seed removal outlet 18 below; a brush 32 is also provided obliquely above the seed ring 30, and the brush 32 is rotatably installed in the seed chamber 17 and has the same rotation direction as the seed ring 30, and the bristles of the brush 32 are in contact with the outer circumferential surface of the seed ring 30. The function of the brush 32 is to brush away the excess seeds on the seed ring 30 and leave them in the seed chamber 17, ensuring that only the seeds in the two seed holes 31 in a single row on the seed ring 30 are taken out of the seed chamber 17 and fall into the seed outlet 18 below each time, and then fall into the corresponding inoculation box 23 through the seed outlet 18, so as to achieve precise seed collection.

[0052] Each hole sowing wheel assembly 4 also includes a sowing transmission system, which includes a main shaft gear 33, a transmission gear 34, a seeding ring gear 35, a reversing gear 36 and a brush gear 37. The main shaft gear 33 is fixedly mounted on the main shaft 3, the transmission gear 34 and the seeding ring gear 35 are coaxially fixedly mounted with the seeding ring 30, the brush gear 37 is coaxially fixedly mounted with the brush 32, the reversing gear 36 is rotatably mounted on the seed wheel 29 body, and the transmission gear 34 is meshed with the main shaft gear 33, and the seeding ring gear 35 and the brush gear 37 are connected by a reversing gear 36. With the rotation of the main shaft 3, the main shaft 3 drives the main shaft gear 33 to rotate, the main shaft gear 33 drives the transmission gear 34 to rotate, thereby driving the seeding ring gear 35 and the seeding ring 30 to rotate, the seeding ring gear 35 rotates and then drives the brush gear 37 to rotate in the same direction through the reversing gear 36, thereby driving the brush 32 and the seeding ring 30 to rotate in the same direction.

[0053] The working process of the seed box 12, the seed taker 14 and the seed meter 15 is as follows:

[0054] The seeds fall from the seed box 12 into the seed chamber 17 of the seed wheel 29 through the inclined material guide channel 19. When the main shaft 3 rotates, the main shaft gear 33 fixedly connected to the main shaft 3 is driven to rotate. The main shaft gear 33 drives the seed ring 30 and the brush 32 to rotate in the same direction through the transmission cooperation of the sowing transmission system. The rotation direction of the brush 32 is the same as that of the seed ring 30, so that the excess seeds are left in the seed chamber 17, so that only the seeds in the two seed holes 31 in a single row on the seed ring 30 are taken out and fall into the corresponding inoculation box 23 below each time, so as to achieve precise seeding. When the seed wheel body 20 rotates, the seeds are guided out from the corresponding seed guide tube 22 and enter the hole claw 27 to ensure precise sowing.

[0055] The plant spacing adjuster 28 includes an adjusting ring 38 that is slidably mounted on the main shaft 3, and a plurality of connecting rods 39 are hinged on the adjusting ring 38 along the circumferential direction. An adjusting positioning connecting rod 40 is fixed on the telescopic tube 26 of the plurality of hole-forming assemblies 24 of each hole-forming mechanism 16, and the adjusting positioning connecting rod 40 extends along the axis of the main shaft 3. The other ends of the plurality of connecting rods 39 on the adjusting ring 38 are hinged to the inner ends of the plurality of adjusting positioning connecting rods 40 of the corresponding hole-forming mechanism 16 in a one-to-one correspondence. The adjusting ring 38 is driven to move axially along the main shaft 3 by the plant spacing adjustment driving mechanism, thereby driving the plurality of telescopic tubes 26 of the corresponding hole-forming mechanism 16 to slide along their respective seed guide tubes 22. The plant spacing adjustment drive mechanism adopts a push-pull electric cylinder 41, the cylinder body of the push-pull electric cylinder 41 is installed in a mounting box 42, the mounting box 42 is fixed on the main shaft 3, and the piston rod of the push-pull electric cylinder 41 is fixedly connected to the adjustment ring 38. The piston rod of the push-pull electric cylinder 41 is extended and retracted, thereby driving the adjustment ring 38 to move axially along the main shaft 3. The multiple adjustment positioning connecting rods 40 are pulled by multiple connecting rods 39, so that the multiple telescopic tubes 26 slide along their respective seed guide tubes 22, thereby driving the multiple hole-forming claws 27 to move axially along each seed guide tube 22, thereby realizing the change of the circumferential distance between adjacent hole-forming claws 27, that is, the plant spacing of the seeder can be adjusted according to crop needs within an adjustable range, thereby realizing stepless adjustment of the plant spacing.

[0056] In the cavitation component 24, the cavitation claw 27 is formed by the fixed claw 43 and the movable claw 44 to form a complete inverted cone-shaped shell, and the pointed end of the cavitation claw 27 faces downward, the upper end of the fixed claw 43 is fixed on the extrusion plate 25, and the upper end of the movable claw 44 is hinged to the upper end of the fixed claw 43 through a hinge sleeve 45 and a torsion spring. A lever 46 is fixed to the hinge sleeve 45 at the upper end of the movable claw 44, and the outer section of the lever 46 is bent in a Z shape. In the natural state, under the action of the torsion spring, the movable claw 44 fits with the fixed claw 43 to make the cavitation claw 27 in a closed state. When the outer end of the lever 46 is squeezed by an external force, it will drive the movable claw 44 to rotate in a direction away from the fixed claw 43, so that the cavitation claw 27 opens.

[0057] A vertically extending slide groove 47 is provided on the outer side of the mounting end cover 13, and an autonomous opening regulator 48 is slidably provided in the slide groove 47. The autonomous opening regulator 48 includes a mounting seat 49, a slide rail 50 fixed on the top of the mounting seat 49, an adjustment track 51 fixed on one side of the mounting seat 49, and an extrusion block 52 fixed on the bottom of the mounting seat 49. The slide rail 50 extends vertically and slides with the slide groove 47. An arc groove 53 concentric with the main shaft 3 is opened on the inner side of the adjustment track 51. The outer end of the adjustment positioning connecting rod 40 on the telescopic tube 26 is an embedded end 54. The adjustment positioning of the cavitation component 24 located below in the cavitation mechanism 16 The embedded end 54 of the connecting rod 40 is embedded in the arc groove 53 of the adjusting track 51 and can slide in the arc groove 53. One end of the arc groove 53 along the circumferential direction is the entrance end, and the entrance end of the arc groove 53 is a trumpet mouth with an outer end expansion, so that the embedded end 54 of the next adjusting and positioning connecting rod 40 can smoothly enter the arc groove 53 from the entrance end of the arc groove 53. With the rotation of the seed wheel body 20, the multiple groups of cavitation components 24 of the cavitation mechanism 16 are driven to rotate together. When the cavitation component 24 rotates to the bottom, the outer end of the lever 46 of the cavitation claw 27 is squeezed by the squeezing block 52, so that the cavitation claw 27 is opened. During the rotation of the cavitation mechanism 16, it is ensured that the embedded end 54 of the adjusting and positioning connecting rod 40 of at least one cavitation component 24 is always in the arc groove 53 of the adjusting track 51 to prevent the self-opening regulator 48 from falling and failing to play the role of self-opening the cavitation claw 27.

[0058] The working process of the cavitation mechanism 16 is:

[0059] When the entire hole sowing wheel assembly 4 rotates forward, multiple hole-forming claws 27 on the seeding wheel body 20 alternately form holes. Seeds go from the seed taker 14 to the seeding device 15, and then enter the hole-forming claws 27 from the seed guide tube 22. During this process, at least one embedded end 54 of the adjusting and positioning link 40 of the hole-forming assembly 24 always moves in the arc groove 53 of the self-opening regulator 48. When the hole-forming claw 27 moves to a suitable position below the seed taker 14, the lever 46 on the hole-forming claw 27 begins to contact the extrusion block 52. The extrusion block 52 squeezes the lever 46 to rotate and then drives the movable claw 44 fixed thereon to rotate relative to the fixed claw 43, opening the hole-forming claw 27. At this time, the seeds in the hole-forming claw 27 fall into the formed holes, completing the sowing; and when the lever 46 separates from the extrusion block 52, the hole-forming claw 27 automatically closes under the action of the torsion spring to prepare for the next sowing. When the plant spacing of the hole-forming wheel assembly 4 is adjusted, the adjusting positioning link 40 drives the hole-forming claw 27 to extend and retract along the axial direction of the seed guide tube 22 through the telescopic tube 26 fixed thereon, ensuring that there is always at least one embedded end 54 of the adjusting positioning link 40 of the hole-forming assembly 24 in the arc groove 53 of the adjusting track 51, driving the slide rail 50 of the self-opening regulator 48 to move up and down along the slide groove 47, thereby driving the extrusion block 52 to move up and down, so that the height position of the extrusion block 52 is linked with the plant spacing adjustment of the hole-forming claw 27, ensuring that the hole-forming claw 27 can be smoothly opened when sowing under different plant spacing conditions.

[0060] Each seeding wheel assembly 4 also includes a synchronous precision water injection system, which includes a hard water injection pipe 55. A water pipe mounting block 56 is fixed to the outside of the seed box 12. A guide channel extending forward and backward is opened on the water pipe mounting block 56. The hard water injection pipe 55 is slidably installed in the guide channel of the water pipe mounting block 56. The inlet end of the hard water injection pipe 55 is connected to a water pump 58 through a soft water pipe 57. The water pump 58 adopts a booster pump. A bracket 59 is installed on the body of the crawler vehicle 2. A water tank 60 is installed on the bracket 59. Two groups of seeding wheel assemblies 4 can share a water tank 60. The bottom of the water tank 60 is connected to the water inlet of the water pump 58 through a straight pipe connector, and the water outlet of the water pump 58 is connected to the corresponding soft water pipes 57 through two straight pipe joints. The outlet end of the hard water injection pipe 55 is connected to a water outlet elbow 62 through a solenoid valve 61. The water outlet elbow 62 is bent downward and connected to a water outlet head 63. The hard water injection pipe 55 is driven to move forward and backward in the guide channel of the water pipe mounting block 56 by a water pipe driving mechanism to adjust the front and rear position of the water outlet head 63. The water pipe driving mechanism can adopt a side electric cylinder 64, which is installed on the outside of the seed box 12. The piston rod of the side electric cylinder 64 is connected to a fastening sleeve 65, which is fixed on the hard water injection pipe 55. The piston rod of the side electric cylinder 64 is extended and retracted, thereby driving the hard water injection pipe 55 to move forward and backward in the guide channel of the water pipe mounting block 56.

[0061] The working process of the synchronous precision water injection system is:

[0062] The water flows through the water tank 60 and is pressurized by the water pump 58, and then passes through the foldable soft water pipe 57 and the hard water injection pipe 55 to wait at the solenoid valve 61. The solenoid valve 61 receives the command of the controller to open, and the water flows through the solenoid valve 61 and the water outlet head 63 of the water outlet elbow 62 to be injected into the formed hole. In order to ensure that the water injection position still meets the requirements when the hole spacing changes, the hard water injection pipe 55 drives the solenoid valve 61 and the water outlet elbow 62 to realize linkage with the extension and contraction of the hole forming claw 27, and establish a functional relationship of linkage between them. When the plant spacing regulator 28 is controlled by the controller to push the electric cylinder 41 to push the adjustment ring 38 axially to change the plant spacing, the side electric cylinder 64 is synchronously controlled by the controller, and the side electric cylinder 64 on the outside of the seed box 12 is synchronously controlled to adjust the hard water injection pipe 55 according to the relationship with the plant spacing adjustment to realize the position adjustment, ensuring the relative position of the water outlet head 63 of the water injection system and the hole to be injected, thereby realizing the stepless adjustment of the plant spacing and the linkage adjustment of the water injection system.

[0063] The synchronous precision water injection system also includes a water injection detection and leveling positioning mechanism, which includes a positioning plate 66, an L-shaped balance bar 67, and a positioning pulley group 68. The positioning plate 66 is installed on the machine. The positioning plate 66 is provided with a positioning groove 69 extending in the front-to-back direction. The positioning pulley group 68 includes a positioning cylinder and positioning pulleys fixed at the upper and lower ends of the positioning cylinder. The positioning cylinder slides with the positioning groove 69 of the positioning plate 66 and can only slide back and forth along the positioning groove 69. The two positioning pulleys are respectively located on the upper and lower sides of the positioning plate 66. The horizontal rod of the L-shaped balance bar 67 extends in the front-to-back direction and the rear end is fixed to the outside of the seed box 12. The vertical rod of the L-shaped balance bar 67 is located at the front end of the horizontal rod and slides upward to pass through the inner hole of the positioning cylinder.

[0064] The synchronous precision water injection system also includes a precision water injection detection device, which includes a Hall element 70 and a plurality of electromagnetic sheets 71. The Hall element 70 is fixed to the bottom inner side of the mounting end cover 13, and the plurality of electromagnetic sheets 71 are installed at the edge of the outer side of the seed wheel body 20 and are evenly distributed along the circumference of the seed wheel body 20. The plurality of electromagnetic sheets 71 correspond one by one to the plurality of seed guide tubes 22 on the seed wheel body 20. When the electromagnetic sheet 71 rotates to the bottom with the seed wheel body 20, it is opposite to the sensing end of the Hall element 70.

[0065] The working process of the precision water injection detection device is:

[0066] When the hole-forming wheel assembly 4 rotates forward, the hole-forming claw 27 forms a hole for sowing at the lowest end, and the Hall element 70 is directly opposite to the corresponding electromagnetic sheet 71 at the lowest end of the seed-discharging wheel body 20, and the corresponding electromagnetic sheet 71 is detected, and the signal is transmitted to the controller terminal. The controller controls the opening time of the electromagnetic valve 61. The water flows through the electromagnetic valve 61 and the outlet elbow 62 to accurately inject water into the hole formed in front during the opening time of the electromagnetic valve 61. When the time set by the controller is exceeded, the electromagnetic valve 61 is automatically closed, that is, one hole formation, one sowing, one opening and closing of the electromagnetic valve 61, and one fixed hole water injection are completed. The hole-forming wheel assembly 4 continues to rotate, and the electromagnetic valve 61 is opened again when the next electromagnetic sheet 71 is detected by the Hall element 70. In this way, the above process is repeated to complete continuous hole formation, sowing, and fixed hole water injection. The controller sets the opening time of the electromagnetic valve 61 to achieve accurate control of the water injection amount, or the model of the water pump 58 is replaced with a high-power water pump 58 to increase the flow rate and thus increase the water injection amount. The above two methods are used to achieve precise water injection.

[0067] The working process of the water injection detection leveling and positioning mechanism is as follows:

[0068] During the rotation of the seeding wheel assembly 4 and the lifting or lowering of the double-row seeding device with the mounting frame 1, the horizontal guiding action of the positioning groove 69 on the positioning plate 66 and the vertical guiding action of the positioning pulley block 68 can ensure that the horizontal rod of the L-shaped balance rod 67 is always in a horizontal state and the vertical rod is always in a vertical state, and the seed box 12 is fixed to the horizontal rod of the L-shaped balance rod 67, so that the seed box 12 can always remain in a vertical state without flipping, which has the following effects:

[0069] First, the installation end cover 13 and the seed taker 14 fixed to the seed box 12 are also always kept in a vertical state, ensuring the smooth progress of the seed taking operation;

[0070] Secondly, the hard water injection pipe 55 and the solenoid valve 61 fixedly installed on the seed box 12 are always kept horizontal, thereby ensuring that the water injection position of the water outlet elbow 62 remains unchanged and the precise water injection position is ensured;

[0071] Thirdly, since the Hall element 70 of the precision water injection detection device is fixed on the mounting end cover 13, the Hall element 70 can maintain a constant position, thereby achieving a constant position for precision water injection detection.

[0072] The working process of the integrated adjustable precision seeding machine for sowing and water injection provided in this embodiment is as follows:

[0073] First, according to the crop planting requirements, the controller controls the extension and contraction of the push-pull electric cylinder 41 to drive the plant spacing regulator 28 to infinitely adjust the hole distance of the hole-seeding wheel assembly 4, so that the hole distance formed meets the crop growth requirements. While adjusting, the plant spacing regulator 28 drives the self-opening regulator 48 to move vertically along the slide 47 through the adjustment positioning link 40 embedded in the arc groove 53 of the adjustment track 51 of the self-opening regulator 48, and then drives the extrusion block 52 directly below the self-opening regulator 48 to move, so as to realize the linkage adjustment of the height position of the extrusion block 52 and the hole distance of the hole-forming claw 27, and realize the linkage of the self-opening regulator 48 with the plant spacing adjustment. While the plant spacing regulator 28 is working, the controller will also synchronously control the side electric cylinders 64 on the left and right sides of the hole-seeding device to work, drive the hard water injection pipe 55 to move forward and backward to the appropriate position, and ensure that the subsequent water injection point always coincides with the hole to be injected with water, that is, to realize the linkage adjustment of the synchronous precision water injection system and the plant spacing regulator 28, and control the amount of water injection through the setting in the controller.

[0074] When the machine is in operation, the controller is operated to place the hole sower in the cultivated field by lifting the electric cylinder 11. At this time, the piston rod of the lifting electric cylinder 11 is retracted, and the mounting frame 1 is in the lowered state, so that the two hole sower wheel assemblies 4 are in contact with the ground. The crawler 2 is controlled to move forward, and the double-row hole sower is mounted behind the crawler 2. Under the traction of the crawler 2 and the friction between the hole forming part and the ground, the seeding device 15 and the hole forming mechanism 16 rotate automatically, and the seeding wheel body 20 drives the main shaft 3 to rotate synchronously, and drives the seeding ring 30 and the brush 32 to rotate in the same direction through the sowing transmission system. The movement of the brush 32 and the seeding ring 30 can realize precise seeding, and the seeds in the seed box 12 fall into the seed chamber 17. During the rotation of the seeding ring 30, the seeds in the seed chamber 17 fall into the seeding hole 31 of the seeding ring 30 under the joint action of the brush 32, and are taken out of the seed chamber 17, fall into the corresponding inoculation box 23, and are introduced into the corresponding hole forming claw 27 through the seed guide tube 22. As the seed wheel body 20 rotates, the embedded end 54 of the adjusting and positioning link 40 located below rotates in the arc groove 53 of the adjusting track 51 of the self-opening regulator 48. When the hole-forming claw 27 moves to the bottom of the seed taker 14, the lever 46 of the hole-forming claw 27 begins to contact with the extrusion block 52. The extrusion block 52 exerts a backward force on the lever 46 to open the hole-forming claw 27. At this time, the seeds fall into the formed holes and the sowing is completed. When the lever 46 of the hole-forming claw 27 is separated from the extrusion block 52, the hole-forming claw 27 automatically closes under the action of the torsion spring to prepare for the next sowing. While the hole seeder is working, when the hole seeder rotates forward, the water injection detection and leveling positioning mechanism keeps the seed box 12 vertical at all times, thereby keeping the hard water injection pipe 55 fixedly installed on the seed box 12 and the electromagnetic valve 61 fixed at its water outlet port always horizontal, thereby ensuring that the water injection position of the outlet elbow 62 remains unchanged, ensuring the precise water injection position, and at the same time, since the detection element of the precise water injection detection device, that is, the Hall element 70, is fixed on the inner side of the bottom end of the installation end cover 13, the detection element can maintain its position unchanged, realizing the precise water injection detection position unchanged; when the hole claw 27 is at the lowest end to form a hole for sowing, the Hall element Component 70 is directly opposite to the electromagnetic sheet 71 that rotates to the lowest end at the edge of the seeding wheel body 20, detects the corresponding electromagnetic sheet 71, and transmits the signal to the controller. The controller controls the electromagnetic valve 61 to open, and the water flows through the electromagnetic valve 61 and the outlet elbow 62 to accurately inject water into the hole formed in front during the opening time of the electromagnetic valve 61. When the time set by the controller is exceeded, the electromagnetic valve 61 will automatically close, that is, a fixed hole injection is completed, and finally the hole sower is sowing and water is injected into the formed hole synchronously. The crawler 2 continues to move forward to complete the continuous process of accurate hole formation, precision sowing, and synchronous water injection. When the crawler 2 is finished, the double-row hole sower is first lifted to a safe position by lifting the electric cylinder 11, and then the hole claws 27 of the hole sower are retracted by the plant spacing regulator 28, so that the double-row hole sower is lifted off the ground, and finally the crawler 2 is controlled to drive out of the cultivated field.

[0075] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sowing and watering integrated adjustable precision seeding machine, characterized in that: The double-row seed drill comprises a double-row seed drill, which is mounted on a machine tool via a mounting frame (1), a main shaft (3) extending left and right is rotatably mounted on the mounting frame (1), and the double-row seed drill comprises two seed drill wheel assemblies (4) mounted on the main shaft (3) in a left-right symmetrical manner, the opposite side of the two seed drill wheel assemblies (4) being the inner side, and the opposite side being the outer side; Each seeding wheel assembly (4) comprises a seed box (12), an installation end cover (13), a seed taker (14), a seed discharger (15) and a seed forming mechanism (16); the seed taker (14) is rotatably mounted on the main shaft (3); the installation end cover (13) is fixed on the outside of the seed taker (14); the seed box (12) is fixed on the outside of the installation end cover (13); a seed chamber (17) is arranged inside the seed taker (14); a notch is provided at the bottom of the seed taker (14) as a seed outlet (18); and two seed holes (15) are provided on the side wall of the seed box (12) and the installation end cover (13). The inner side of the seeding wheel body (15) is provided with a downwardly inclined and connected material guide channel (19), the material guide channel (19) communicating with the inner cavity of the seed box (12) and the seed chamber (17); the seeding device (15) comprises a seeding wheel body (20) located at the periphery of the seeding device (14), the inner side of the seeding wheel body (20) is fixedly mounted on the main shaft (3) through a seeding end cover (21), a plurality of seed guide tubes (22) are evenly distributed along the circumferential direction on the outer circumferential surface of the seeding wheel body (20), each seed guide tube (22) extends outward along the radial direction of the seeding wheel body (20), and the inner circumferential surface of the seeding wheel body (20) is provided with a plurality of seed guide tubes (22) extending outward along the radial direction of the seeding wheel body (20). A plurality of inoculation boxes (23) are evenly distributed along the circumference of the upper edge, and the inoculation boxes (23) are used to receive seeds dropped from the seed taking outlet (18) of the seed taking device (14). The plurality of inoculation boxes (23) are connected to the plurality of seed guide tubes (22) in a one-to-one correspondence; the cavitation mechanism (16) comprises a plurality of cavitation components (24), and each cavitation component (24) comprises an arc-shaped extrusion plate (25) and a telescopic tube (26) and a cavitation claw (27) fixed on both sides of the extrusion plate (25). The extrusion plates (25) of the plurality of cavitation components (24) together form an extrusion hole. The telescopic tubes (26) of the plurality of hole-forming assemblies (24) are slidably mounted on the plurality of seed guide tubes (22) of the seed-discharging wheel body (20) in a one-to-one correspondence. The main shaft (3) is also provided with two plant spacing adjusters (28) corresponding to the two hole-discharging wheel assemblies (4) respectively. The plant spacing adjusters (28) drive the corresponding telescopic tubes (26) of the plurality of hole-forming assemblies (24) to slide along their respective seed guide tubes (22), thereby adjusting the circumferential spacing of the hole-forming claws (27) of the plurality of hole-forming assemblies (24), thereby adjusting the sowing plant spacing.

2. A sowing and watering integrated adjustable precision seeding machine as claimed in claim 1, characterized in that: The plant spacing regulator (28) comprises an adjusting ring (38) slidably mounted on the main shaft (3), a plurality of connecting rods (39) being hingedly connected to the adjusting ring (38) along the circumferential direction, an adjusting positioning connecting rod (40) being fixed to the telescopic tube (26) of the plurality of cavitation assemblies (24) of each cavitation mechanism (16), the adjusting positioning connecting rod (40) extending along the axis of the main shaft (3), the other ends of the plurality of connecting rods (39) on the adjusting ring (38) being hingedly connected to the inner ends of the plurality of adjusting positioning connecting rods (40) of the corresponding cavitation mechanism (16) in a one-to-one correspondence, the adjusting ring (38) being driven by the plant spacing adjustment driving mechanism to move axially along the main shaft (3), thereby driving the plurality of telescopic tubes (26) of the corresponding cavitation mechanism (16) to slide along their respective seed guide tubes (22).

3. A sowing and watering integrated adjustable precision seeding machine as claimed in claim 2, characterized in that: The plant spacing adjustment driving mechanism is a push-pull electric cylinder (41).

4. The one-piece adjustable precision seed drill for sowing and water injection as claimed in claim 2, characterized in that: In the cavitation component (24), the cavitation claw (27) is formed by the fixed claw (43) and the movable claw (44) being matched to form a complete inverted cone-shaped shell, and the pointed end of the cavitation claw (27) faces downward, the upper end of the fixed claw (43) is fixed on the extrusion plate (25), the upper end of the movable claw (44) is hinged to the upper end of the fixed claw (43) through a hinge sleeve (45) and a torsion spring, a lever (46) is fixed on the hinge sleeve (45) at the upper end of the movable claw (44), and the outer section of the lever (46) is bent in a Z shape. In a natural state, under the action of the torsion spring, the movable claw (44) fits with the fixed claw (43) so that the cavitation claw (27) is in a closed state, and when the outer end of the lever (46) is squeezed by an external force, the movable claw (44) is driven to rotate in a direction away from the fixed claw (43), so that the cavitation claw (27) is opened.

5. The one-piece adjustable precision seed drill for sowing and water injection as claimed in claim 4, characterized in that: A vertically extending slide groove (47) is provided on the outer side of the mounting end cover (13), and an autonomous opening regulator (48) is slidably arranged in the slide groove (47). The autonomous opening regulator (48) comprises a mounting seat (49), a slide rail (50) fixed on the top of the mounting seat (49), an adjustment track (51) fixed on one side of the mounting seat (49), and an extrusion block (52) fixed on the bottom of the mounting seat (49). The slide rail (50) extends vertically and slidably cooperates with the slide groove (47). The adjustment track (51) is located below the mounting end cover (13), and an arc groove (53) concentric with the main shaft (3) is opened on the inner side of the adjustment track (51). ), the outer end of the adjusting positioning link (40) on the telescopic tube (26) is an embedding end (54), and the embedding end (54) of the adjusting positioning link (40) of the cavitation component (24) located at the bottom in the cavitation mechanism (16) is embedded in the arc groove (53) of the adjusting track (51) and can slide in the arc groove (53). With the rotation of the seed wheel body (20), the multiple groups of cavitation components (24) of the cavitation mechanism (16) are driven to rotate together. When the cavitation component (24) rotates to the bottom, the outer end of the lever (46) of the cavitation claw (27) is squeezed by the squeezing block (52), so that the cavitation claw (27) is opened.

6. The one-piece adjustable precision seed drill for sowing and water injection as claimed in claim 2, characterized in that: Each seeding wheel assembly (4) further comprises a synchronous precision water injection system, which comprises a hard water injection pipe (55). A water pipe mounting block (56) is fixed on the outside of the seed box (12). A guide channel extending forward and backward is opened on the water pipe mounting block (56). The hard water injection pipe (55) is slidably mounted in the guide channel of the water pipe mounting block (56). The inlet end of the hard water injection pipe (55) is connected to a water pump (58) through a soft water pipe (57). The outlet end of the hard water injection pipe (55) is connected to a water outlet elbow (62) through an electromagnetic valve (61). The water outlet elbow (62) is bent downward and connected to a water outlet head (63). The hard water injection pipe (55) is driven by a water pipe driving mechanism to move forward and backward in the guide channel of the water pipe mounting block (56), so as to adjust the front and rear position of the water outlet head (63).

7. The one-piece adjustable precision seed drill for sowing and water injection as claimed in claim 6, characterized in that: The synchronous precision water injection system also includes a water injection detection leveling positioning mechanism, which includes a positioning plate (66), an L-shaped balance bar (67), and a positioning pulley group (68). The positioning plate (66) is installed on the machine. The positioning plate (66) is provided with a positioning groove (69) extending in the front-to-back direction. The positioning pulley group (68) includes a positioning cylinder and positioning pulleys fixed at the upper and lower ends of the positioning cylinder. The positioning cylinder is slidably matched with the positioning groove (69) of the positioning plate (66) and can only slide forward and backward along the positioning groove (69). The two positioning pulleys are respectively located on the upper and lower sides of the positioning plate (66). The horizontal rod of the L-shaped balance bar (67) extends in the front-to-back direction and the rear end is fixed to the outer side of the seed box (12). The vertical rod of the L-shaped balance bar (67) is located at the front end of the horizontal rod and slides upward to penetrate into the inner hole of the positioning cylinder.

8. The one-piece adjustable precision seed drill for sowing and water injection as claimed in claim 7, characterized in that: The mounting frame (1) comprises a mounting crossbeam (5) and a mounting frame body (6). The mounting crossbeam (5) extends leftward and rightward and is rotatably mounted on the machine. The main shaft (3) is connected to the rear lower part of the mounting crossbeam (5) through the mounting frame body (6). A crossbar (10) extending leftward and rightward is provided on the mounting frame body (6). A lifting electric cylinder (11) is provided below the crossbar (10). The cylinder body of the lifting electric cylinder (11) is hinged on the machine. The piston rod of the lifting electric cylinder (11) is hinged to the crossbar (10). The piston rod of the lifting electric cylinder (11) is extended and retracted, thereby driving the mounting frame (1) to rotate around the axis of the mounting crossbeam (5), thereby driving the main shaft (3) and the double-row seed drill installed on the main shaft (3) to rotate together.

9. The one-piece adjustable precision seed drill for sowing and water injection as claimed in claim 6, characterized in that: The synchronous precision water injection system also includes a precision water injection detection device, which includes a Hall element (70) and a plurality of electromagnetic sheets (71). The Hall element (70) is fixed to the bottom inner side of the mounting end cover (13). The plurality of electromagnetic sheets (71) are mounted at the edge of the outer side of the seeding wheel body (20) and are evenly distributed along the circumference of the seeding wheel body (20). The plurality of electromagnetic sheets (71) correspond one-to-one to the plurality of seed guide tubes (22) on the seeding wheel body (20). When the electromagnetic sheets (71) rotate to the bottom with the seeding wheel body (20), they are opposite to the sensing end of the Hall element (70).

10. The integrated adjustable precision seeding machine for sowing and water injection as claimed in claim 1, characterized in that: The seed remover (14) comprises a seed removing wheel (29) rotatably mounted on a main shaft (3); a seed chamber (17) is arranged inside the seed removing wheel (29); the bottom of the seed chamber (17) is open and a seed discharging ring (30) is rotatably mounted thereon; a plurality of seed discharging holes (31) are evenly distributed along the circumferential direction on the outer circumferential surface of the seed discharging ring (30); the seed discharging holes (31) are used to receive seeds in the seed chamber (17); as the seed discharging ring (30) rotates, the seeds are taken out of the seed chamber (17) and fall through a seed discharging outlet (18) below; a brush (32) is also arranged obliquely above the seed discharging ring (30); the brush (32) is rotatably mounted in the seed chamber (17) and rotates in the same direction as the seed discharging ring (30); the bristles of the brush (32) are in contact with the outer circumferential surface of the seed discharging ring (30).

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