Combined wheat compound drill seeder

Abstract

The invention relates to the technical field of compound drill planters, and particularly discloses a combined wheat compound drill planter which comprises a main mounting frame, a connecting plate is fixedly mounted on the left side of the main mounting frame, a protective shell is jointly arranged at the lower ends of the left sides of the connecting plate and the main mounting frame, and a deep ploughing assembly is arranged from the inner side to the lower end of the protective shell; through the integrated combination design of a main mounting frame, a connecting plate, a protective shell, a deep ploughing assembly, a screening assembly and a discharging assembly, coherent operation of deep ploughing, soil screening and precise discharging and sowing is achieved, step-by-step operation of multiple devices is not needed, and the problems that an existing drill seeder is single in function, low in operation efficiency and high in planting cost are effectively solved. Two connecting rods of the deep ploughing assembly are matched with connecting rings on the circumferential faces of the connecting rods and rotationally-arranged deep ploughing cutters, soil can be fully and deeply ploughed during operation, and meanwhile straw stubbles are preliminarily smashed.

Description

Technical Field

[0001] This invention relates to the field of compound row seeder technology, and in particular to a combined wheat compound row seeder. Background Technology

[0002] In wheat cultivation, the row seeder is a key piece of equipment for achieving efficient sowing, and its performance directly affects the wheat's emergence rate and subsequent growth.

[0003] Most wheat strip seeders on the market are designed for a single function, making it difficult to complete multiple tasks such as deep plowing, soil screening, and precise feeding at the same time. This often requires multiple machines to operate in stages, which not only increases planting costs but also reduces operating efficiency.

[0004] Specifically, the deep tillage mechanism of existing row seeders has a fixed structure, and the installation angle and working depth of the deep tillage blades cannot be flexibly adjusted. When faced with soils of different textures, such as heavy clay soils and loose sandy soils, it is difficult to achieve the ideal deep tillage effect. Either it cannot effectively break up the soil compaction layer, or excessive turning leads to soil loss.

[0005] Meanwhile, the deep plowing process does not effectively crush the straw residues in the field, resulting in uneven mixing of the residues with the soil and affecting the improvement of soil fertility. In the soil treatment stage, there is a lack of effective screening structure, and large particles of roots, small stones and other impurities mixed in the soil cannot be removed in time, resulting in a harsh environment for seed germination after sowing and a reduced emergence rate.

[0006] In the seed feeding and sowing stage, the seed delivery uniformity of the feeding mechanism is insufficient, which easily leads to missed sowing and double sowing. Furthermore, it is impossible to screen out inferior seeds such as empty or shriveled seeds, which further affects the sowing quality. In addition, the coordination between the ditching, sowing, and covering stages is poor, making it difficult to achieve integrated and continuous operation, and subsequent field management is more difficult. Summary of the Invention

[0007] The purpose of this invention is to provide a combined wheat row seeder to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a combined wheat double row seeder, including a main mounting frame, a connecting plate fixedly mounted on the left side of the main mounting frame, a protective shell being provided together on the lower left side of the connecting plate and the main mounting frame, and a deep tillage component being provided on the inner side to the lower end of the protective shell; The deep-tillage component includes two connecting rods, both ends of which are rotatably mounted inside the protective shell. A connecting ring is fixedly installed on the circumferential surface of the connecting rod, and a deep tillage blade is rotatably installed at the lower end of each connecting ring. A screening component is provided at the lower middle part of the main mounting frame. The screening component includes a mounting shell, a first screening screen is provided inside the mounting shell, and a second screening screen is provided at the lower end of the interior of the mounting shell. A feeding assembly is provided on the inner right end of the main mounting frame. The feeding assembly includes a U-shaped mounting frame. A feeding conveyor belt is evenly arranged on the inner side of the U-shaped mounting frame. A suction pipe is provided at the middle of the upper end of the feeding conveyor belt. A waste bin is fixedly installed at the upper end of the suction pipe.

[0009] Preferably, a mounting rod is fixedly installed on the lower left end of the main mounting bracket and the left end of the connecting plate. The outer circumferential surface of the mounting rod is slidably connected to the protruding structures on both sides of the upper part of the protective shell. A connecting bracket is fixedly installed on the upper end of the main mounting bracket and the upper left edge of the protective shell.

[0010] Preferably, the protective shell has three horizontal through slots inside. A first motor in a symmetrical configuration is fixedly installed in the center of the protective shell. An adjusting rod is fixedly installed on the output shaft of each of the first motors. The front end face of the adjusting rod is open to the rear end face. A U-shaped frame is slidably installed inside the adjusting rod. The lower ends of the U-shaped frame extend through the adjacent through slots to the lower part of the protective shell. The lower end of the U-shaped frame is fixedly connected to the outer circumferential surface of the connecting rod.

[0011] Preferably, a connecting ring is fixedly installed on the circumferential surface of the connecting rod, a gear ring is provided at the lower end of the connecting ring, a connecting groove is opened from the upper end face of the gear ring to the inside, the connecting ring is rotatably installed inside the connecting groove, a deep tillage blade is fixedly installed on the lower end face of the gear ring, a chain is rotatably installed on the circumferential surface of multiple gear rings in the longitudinal direction, and a servo motor is fixedly installed inside the two connecting rings on the left and right rear ends, the output shaft of the servo motor passes through the connecting groove and is fixedly connected to the adjacent gear ring.

[0012] Preferably, a symmetrical telescopic cylinder is rotatably mounted in the middle of the main mounting frame, and a housing is rotatably mounted on the telescopic rod of the telescopic cylinder. An adjusting plate is rotatably mounted on the upper left side of the housing, and the other end of the adjusting plate is rotatably mounted on the outer circumferential surface of the adjacent mounting rod.

[0013] Preferably, a second motor is fixedly installed on the left front end of the housing, the output shaft of the second motor extends into the interior of the housing, and shredder blades are fixedly installed longitudinally at equal intervals on the outer circumferential surface of the second motor.

[0014] Preferably, an installation head is fixedly installed on the upper end face of the mounting housing, and both ends of the installation head are fixedly installed on the upper end face of the main mounting frame. A third motor is fixedly installed on the left side of the front end face of the mounting housing near the edge. The output shaft of the third motor extends into the interior of the mounting housing, and a conveying assembly is rotatably installed on the circumferential surface of the output shaft. A slanted insert plate is rotatably installed on the left end of the conveying assembly.

[0015] Preferably, a first screening screen is provided in the middle of the inner side of the mounting shell, and a convex groove is provided at the lower end of the inner side of the mounting shell near the edge. A slide table is slidably installed inside each convex groove. A spring is fixedly installed between the upper end of the slide table and the upper end face of the inner side of the convex groove. A second screening screen is fixedly installed on the inner side of the slide table. A vibrator is fixedly installed at the corner of the lower end face of the second screening screen.

[0016] Preferably, the U-shaped mounting bracket has symmetrical mounting plates fixedly installed inside. The mounting plates are arranged in pairs, and the inner upper ends of two adjacent mounting plates are fixedly installed with a material distribution box. A fourth motor is fixedly installed on the outer side of the front mounting plate. The output shaft of the fourth motor extends into the interior of the material distribution box, and a feeding shaft is fixedly installed on the circumferential surface of the output shaft inside the material distribution box. The upper end of the material distribution box is fixedly installed with a main material box.

[0017] Preferably, a feeding conveyor belt is provided at the lower end of two adjacent feeding boxes, an outer protective shell is fixedly installed at the upper right middle part of the feeding conveyor belt, a first detector is fixedly installed at the left end of the outer protective shell, a trenching knife is symmetrically and rotatably installed at the front and rear ends of the first detector, a first monitoring device is fixedly installed at the right end of the outer protective shell, and a reset knife is symmetrically arranged on the front and rear sides of the first monitoring device.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through the integrated design of the main mounting frame, connecting plate, protective shell, deep tillage component, screening component, and feeding component, achieves continuous operation of deep tillage, soil screening, and precise feeding and sowing, eliminating the need for multiple devices to operate in stages. This effectively solves the problems of existing row seeders, such as limited functionality, low operating efficiency, and high planting costs. Specifically, the two connecting rods of the deep tillage component, along with the connecting ring on its circumferential surface and the rotating deep tillage blades, can thoroughly till the soil during operation, while simultaneously preliminarily crushing straw residues. The screening component's mounting shell contains a first and second screening screen, which can progressively remove large root particles, small stones, and other impurities from the soil, providing a high-quality soil environment for seed germination. The feeding component's U-shaped mounting frame, along with the evenly arranged feeding conveyor belt, suction pipe, and waste bin, enables uniform seed delivery and screening of inferior seeds, significantly improving sowing quality and solving the problems of poor deep tillage, incomplete soil impurity removal, and low feeding and sowing accuracy in existing equipment.

[0019] 2. This invention, through the cooperative structure of the first motor, adjusting rod, and U-shaped frame inside the protective shell, and the transmission design of the connecting rod, connecting ring, gear ring, chain, and servo motor, allows for flexible adjustment of the tilt angle and rotation speed of the deep tillage blades. It optimizes deep tillage parameters for different soil textures, such as heavy clay soil and loose sandy soil, ensuring effective deep tillage and breaking up of heavy clay soil while avoiding excessive turning and loss of sandy soil. Simultaneously, the longitudinal gear ring achieves synchronous rotation via chain transmission, resulting in strong consistency in the operation of multiple sets of deep tillage blades and more uniform crushing of straw residues. This solves the problems mentioned in the background art regarding the inability to adjust the angle and depth of existing deep tillage mechanisms and the poor straw crushing effect, further improving the quality of soil tillage.

[0020] 3. This invention, through the synergistic action of the telescopic cylinder, outer shell, adjusting plate, second motor, and crushing blade, can perform secondary fine crushing of straw residues and soil clumps after deep plowing. Combined with the high-frequency vibration of the first screening screen and the vibrating fine screening of the second screening screen in the screening component, the fineness and purity of the soil are further improved. The quantitative feeding design of the fourth motor, distributing box, and feeding shaft in the feeding component, combined with the precise furrowing and covering of soil by the furrowing blade and the resetting blade, and the real-time monitoring by the first detector and the first monitor, realizes the optimization of the entire process from fine soil treatment to precise sowing and standardized covering. It solves the problems of imprecise soil crushing, poor quantitative feeding, and insufficient coordination between sowing and covering soil mentioned briefly in the background technology, and effectively improves the germination rate and growth uniformity of wheat seeds. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a structural diagram of the main body of the present invention; Figure 2 This is a schematic diagram of the main mounting bracket and protective shell of the present invention; Figure 3 This is a schematic diagram of the lower end face of the protective shell of the present invention; Figure 4 This is a schematic diagram of the interior of the protective shell of the present invention; Figure 5 This is a structural diagram of the deep-plowing component of the present invention; Figure 6 This is a schematic diagram of the main mounting bracket and housing of the present invention; Figure 7 This is a schematic diagram of the outer side of the screening component of the present invention; Figure 8 This is a schematic diagram of the interior of the mounting housing of the present invention; Figure 9 This is a schematic diagram of the feeding assembly of the present invention; Figure 10 This is a schematic diagram of the material distribution box and the feeding shaft of the present invention; Figure 11 This is a schematic diagram of the feeding conveyor belt and the material distribution box of the present invention.

[0023] Explanation of reference numerals in the attached figures: 1. Main mounting bracket; 101. Connecting plate; 102. Mounting rod; 103. Protective shell; 104. Connecting frame; 2. Deep tillage component; 201. Through slot; 202. First motor; 203. Adjusting rod; 204. U-shaped frame; 205. Connecting rod; 206. Connecting ring; 207. Gear ring; 208. Connecting slot; 209. Deep tillage blade; 210. Chain; 211. Servo motor; 3. Adjusting plate; 301. Outer casing; 302. Telescopic cylinder; 303. Second motor; 304. Crushing blade; 4. Screening assembly; 401. Mounting head; 402. Mounting housing; 403. Third motor; 404. Conveyor assembly; 405. Inclined insert plate; 406. First screening screen; 407. Convex groove; 408. Slide table; 409. Spring; 410. Second screening screen; 411. Vibrator; 5. Feeding assembly; 501. U-shaped mounting bracket; 502. Mounting plate; 503. Fourth motor; 504. Feeding box; 505. Feeding shaft; 506. Main material box; 507. Feeding conveyor belt; 508. Outer protective shell; 509. First detector; 510. Grooving knife; 511. Suction pipe; 512. Waste bin; 513. First monitor; 514. Reset knife. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1 to 11 The present invention provides a technical solution: A combined wheat row seeder includes two main mounting frames 1. Connecting plates 101 are fixedly mounted on the outer left side of each main mounting frame 1 using screws and nuts. A protective shell 103 is provided on the lower left side of both the connecting plates 101 and the main mounting frames 1. The upper left and right sides of the protective shell 103 protrude upwards, and mounting rods 102 are slidably mounted on these protrusions. The left mounting rod 102 is slidably connected to the left side of the connecting plate 101, and the right mounting rod 102 is slidably connected to the main mounting frame 1. Nuts are used to fix the position of both ends of the mounting rods 102. A retaining ring is used to secure the sliding connection between the mounting rods 102 and the protective shell 103, thus ensuring that the protective shell 103 does not shake or shift. Figure 1 and Figure 2 As shown.

[0026] Then, connecting frames 104 are fixedly installed on the middle of the upper end face of the main mounting frame 1 and on the upper left side of the protective shell 103. The connecting frames 104 are used to connect with an external tractor, so that the device can be carried out under the action of the tractor. Figure 1 As shown.

[0027] A deep-tillage component 2 is provided inside the protective shell 103 to its lower end. Three horizontal through slots 201 are formed on the middle transverse plate inside the protective shell 103. Furthermore, symmetrically arranged first motors 202 are fixedly installed inside the protective shell 103. Adjusting rods 203 are fixedly installed on the output shafts of the first motors 202, and the front and rear faces of the adjusting rods 203 are in a through-flow state. Figure 4As shown, a U-shaped frame 204 is slidably installed inside the adjusting rod 203 and to the outer sides on both sides. The front and rear ends of the U-shaped frame 204 extend through adjacent through slots 201 to the lower interior of the protective shell 103, as shown. Figure 4 As shown.

[0028] During use, when the first motor 202 is started, its output shaft will rotate the adjusting rod 203. As the adjusting rod 203 rotates, the U-shaped frame 204 inside it will also rotate due to the change in the angle of the adjusting rod 203. Figure 4 As shown.

[0029] A connecting rod 205 is fixedly installed at the lower end of the U-shaped frame 204. Both ends of the connecting rod 205 are rotatably mounted on the lower inner side of the protective shell 103. Furthermore, multiple connecting rings 206 are fixedly installed at equal intervals on the circumferential surface of the connecting rod 205. Figure 5 As shown, a gear ring 207 is provided at the lower end of the connecting ring 206. A connecting groove 208 is formed on the upper end surface of the gear ring 207 and extends into the interior. The connecting ring 206 is rotatably mounted inside the connecting groove 208. Then, symmetrical deep tillage blades 209 are fixedly installed at the lower end of the gear ring 207, as shown. Figure 5 As shown, a chain 210 is rotatably mounted on the circumferential surface of multiple longitudinal gear rings 207. Then, a servo motor 211 is fixedly mounted inside the two connecting rings 206 at the rear end. The output shaft of the servo motor 211 passes through the connecting groove 208 and is fixedly connected to the adjacent gear ring 207. Figure 5 As shown.

[0030] It should be noted that the height of the deep tillage blades 209 on the left and right sides is not the same, with the deep tillage blade 209 on the left being higher than that on the right.

[0031] Therefore, during use, as the U-shaped frame 204 rotates, it causes the connecting rod 205 to rotate as well. When the connecting rod 205 rotates, it causes the connecting ring 206 to rotate. When the connecting ring 206 rotates, it causes the gear ring 207 to rotate through the connecting groove 208. At this time, the rotation of the gear ring 207 causes the deep tillage blade 209 to tilt at different angles. After the adjustment is completed, the servo motor 211 is started. The servo motor 211 causes the gear ring 207 to rotate. The rotation of the gear ring 207 drives the chain 210 to rotate. The rotation of the chain 210 causes the remaining gear ring 207 to rotate synchronously with the deep tillage blade 209. Therefore, when the deep tillage blade 209 rotates, it can perform simple crushing operations on the straw or other plant roots remaining in the soil.

[0032] Furthermore, since the deep tillage blade 209 on the left is higher than that on the right, and since the deep tillage blade 209 can be adjusted to different tilt angles depending on the situation, it can create a natural sloping surface in the soil during use, which facilitates the even distribution of seeds during subsequent sowing.

[0033] Meanwhile, the tilt angle of the deep tillage blade 209 can be flexibly adjusted for different soil textures. When facing heavy and compacted soil, the tilt angle can be increased to allow the deep tillage blade 209 to cut deeper and crush more effectively, thus breaking up the compacted soil layer. When encountering loose sandy soil, the tilt angle can be decreased to reduce the loss caused by excessive soil turning and maintain the stability of the tillage layer structure.

[0034] In addition, the higher deep-plowing blade 209 on the left will gather the straw residue on the ground towards the middle area during rotation, and then work with the lower deep-plowing blade 209 on the right to chop it up again, allowing the residue to be fully mixed and decomposed with the soil. This not only increases the soil organic matter content, but also reduces weed growth and provides more suitable soil conditions for wheat growth.

[0035] Then, symmetrical telescopic cylinders 302 are rotatably mounted inside the main mounting frame 1, and a housing 301 is rotatably mounted on the telescopic rod of the telescopic cylinders 302. An adjusting plate 3 is rotatably mounted on the left edge of the upper end face of the housing 301, and the left side of the adjusting plate 3 is rotatably mounted on the outer circumferential surface of the adjacent mounting rod 102, as shown below. Figure 1 and Figure 6 As shown.

[0036] A second motor 303 is fixedly mounted on the front end face of the housing 301. The output shaft of the second motor 303 extends into the interior of the housing 301. Furthermore, pulverizing blades 304 are uniformly and evenly fixedly arranged in a ring array on the circumferential surface of the output shaft of the second motor 303. The front and rear pulverizing blades 304 are evenly spaced. Figure 6 As shown.

[0037] Therefore, during use, the second motor 303 can drive the crushing blade 304 to rotate at high speed, which can more finely crush the straw residue and soil clumps gathered in the middle area by the deep tillage blade 209, and further improve the crushing uniformity.

[0038] Meanwhile, by controlling the extension and retraction of the telescopic rod of the telescopic cylinder 302, the outer shell 301 can be rotated around the connection point between the adjusting plate 3 and the mounting rod 102, so as to flexibly adjust the working height and angle of the crushing blade 304.

[0039] When the straw residue in the field is thick, the telescopic rod is extended to tilt the outer shell 301 downwards, increasing the cutting depth of the crushing blade 304 to ensure thorough crushing. If the soil texture is loose and there are few clumps, the telescopic rod is shortened to raise the outer shell 301 to avoid excessive turning and damage to the soil structure.

[0040] This adjustable crushing mechanism works in conjunction with the front deep tillage blade 209 assembly, which not only enhances the decomposition effect of straw returning to the field, but also optimizes operating parameters according to different plot conditions, effectively improving the adaptability and operating quality of the compound row seeder.

[0041] A screening assembly 4 is located on the inner side of the main mounting frame 1 near the right end. The screening assembly 4 includes a mounting head 401, which is fixedly mounted on the inner side of the main mounting frame 1 near the center using screws and nuts. A mounting shell 402 is fixedly mounted on the lower end of the mounting head 401. A third motor 403 is fixedly mounted on the left edge of the front end of the mounting shell 402. The output shaft of the third motor 403 extends into the interior of the mounting shell 402, and a conveying assembly 404 is fixedly mounted on the output shaft. An inclined plate 405 is rotatably mounted on the outer left end of the conveying assembly 404. Figure 7 As shown.

[0042] Therefore, during use, after the third motor 403 starts, it drives the conveying assembly 404 to operate continuously, stably conveying the straw and soil mixture processed by the crushing mechanism to the inclined plate 405 area.

[0043] The inclined plate 405, with its preset inclination angle, screens and guides the mixed materials. The fine, decomposed straw particles and loose soil slide smoothly along the plate surface onto the conveyor belt of the conveyor assembly 404, and then enter the interior of the mounting housing 402.

[0044] A first screening screen 406 is provided in the middle of the inner side of the mounting shell 402. The four corners of the first screening screen 406 are fixedly connected to the mounting shell 402 through a high-frequency vibrator. Therefore, the soil entering the mounting shell 402 through the conveying assembly 404 will be screened by the first screening screen 406. The operation of the first screening screen 406 can remove larger plant roots in the soil.

[0045] Then, convex grooves 407 are provided at the four corners of the lower inner side of the mounting shell 402. A slide table 408 is slidably installed inside each convex groove 407. A spring 409 is fixedly installed between the top of the slide table 408 and the upper inner surface of the convex groove 407. A second screening screen 410 is fixedly installed inside the four slide tables 408. A vibrator 411 is fixedly installed at the corner of the lower end face of the second screening screen 410. Figure 8 As shown.

[0046] Therefore, through the above structure, during use, after the soil passes through the first screening screen 406 to filter out large roots, it falls onto the surface of the second screening screen 410. At this time, the vibrator 411 is activated, causing the second screening screen 410 to generate high-frequency vibration. The slide table 408 slides up and down in the convex groove 407 with the vibration, while the spring 409 plays an elastic buffering role to prevent excessive vibration amplitude from damaging the components.

[0047] This process effectively removes impurities such as small stones and clods from the soil, making the soil particles more uniform and fine. The qualified soil after screening will slide down through the discharge port at the bottom of the second screening screen 410, providing a high-quality soil substrate for the precise sowing and germination of wheat seeds, thus improving sowing quality and emergence rate.

[0048] A feeding assembly 5 is provided on the inner right end of the main mounting frame 1. The feeding assembly 5 includes a U-shaped mounting frame 501. The upper ends of both sides of the U-shaped mounting frame 501 are fixedly installed on the lower end of the main mounting frame 1. Six mounting plates 502 are fixedly installed on the inner side of the U-shaped mounting frame 501. The mounting plates 502 are arranged in pairs. A material distribution box 504 is fixedly installed on the upper inner side of each pair of adjacent mounting plates 502. A fourth motor 503 is fixedly installed on the upper outer side of the front mounting plate 502. The output shaft of the fourth motor 503 extends into the interior of the material distribution box 504. A feeding shaft 505 is fixedly installed on the circumferential surface of the output shaft and inside the material distribution box 504. It should be noted that the feeding shaft 505 has material grooves evenly arranged in a ring array on its circumferential surface. Figure 10 As shown.

[0049] Then, the main material box 506 is fixedly installed on the upper end of the distribution box 504, such as... Figure 10 As shown, the main material box 506 and the distribution box 504 are in a connected state, and the material falls automatically through the material inlet.

[0050] Therefore, during use, wheat seeds are first poured into the main feed box 506, and the seeds enter each feed box 504 through the through-hole by their own weight.

[0051] The fourth motor 503 is started, and its output shaft drives the feeding shaft 505 to rotate at a constant speed. When the trough on the feeding shaft 505 rotates to contact the seeds in the distribution box 504, the seeds will naturally fill the trough. As the feeding shaft 505 continues to rotate, when the trough carrying the seeds rotates to the discharge area at the bottom of the distribution box 504, the seeds will fall out of the trough. The quantitative and uniform seed delivery is achieved through the corresponding conveying structure at the bottom of the distribution box 504.

[0052] In addition, operators can adjust the rotation frequency of the feeding shaft 505 by adjusting the speed of the fourth motor 503 according to actual sowing needs, thereby flexibly controlling the amount of seeds fed per unit time, adapting to different wheat varieties and sowing density requirements under soil fertility conditions, and effectively improving the accuracy and efficiency of sowing operations.

[0053] Inside the two adjacent mounting plates 502, a feeding conveyor belt 507 is fixedly installed. It should be noted that the feeding conveyor belt 507 can rotate and can just catch the seeds falling from the distribution box 504.

[0054] Then, an outer protective shell 508 is fixedly installed at the middle corner of the feeding conveyor belt 507. A first detector 509 is fixedly installed at the left end of the outer protective shell 508. Grooving cutters 510 are rotatably installed at both ends of the first detector 509. A suction pipe 511 is fixedly installed from the upper end face to the inside of the outer protective shell 508. A waste bin 512 is fixedly installed at the upper end of the suction pipe 511. Figure 11 As shown, a first monitor 513 is fixedly installed on the right end of the outer protective shell 508, and a reset blade 514 is rotatably installed on both the front and rear sides of the first monitor 513, as shown. Figure 11 As shown.

[0055] like Figure 11 As shown, the two trenching blades 510 on the left have smaller openings at the left end for trenching, while the two reset blades 514 on the right have smaller openings at the right end for soil covering.

[0056] Therefore, through the above structure, during use, the qualified seeds falling from the distribution box 504 will be smoothly transported to the trenching area by the feeding conveyor belt 507.

[0057] At this time, the furrowing knife 510 on the left side rotates synchronously with the forward movement of the equipment. With the help of the smaller opening at the left end, it accurately cuts into the soil to form a standard sowing furrow. The first detector 509 monitors in real time whether the passing seeds are qualified. If the seeds are unqualified, the suction pipe 511 uses the built-in negative pressure device to adsorb the empty or shriveled seeds or impurities mixed in during the feeding process and transports them to the waste bin 512 for centralized collection, so as to avoid inferior seeds entering the soil and affecting the seedling quality.

[0058] Once the seeds fall smoothly into the prepared sowing furrow, the reset blade 514 on the right side rotates and uses the smaller structure on the right end to gather and cover the soil on both sides of the furrow towards the center. The first monitor 513 continuously monitors the soil covering to ensure that the covering is uniform and of appropriate thickness, preventing the seeds from being exposed or the soil covering from being too thick, which would make germination difficult. The first monitor 513 can adjust the opening of the reset blade 514 in real time.

[0059] The entire operation process is seamless and efficient, achieving integrated coordination of ditching, precise seed selection, sowing, and soil covering, significantly improving the uniformity of sowing and the germination rate, and reducing the difficulty of subsequent field management.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A combination wheat drill comprising: Including the main mounting frame (1), the left side of the main mounting frame (1) is fixedly installed with a connecting plate (101), the connecting plate (101) and the left side of the main mounting frame (1) are provided with a protective shell (103) at the lower end, and the inner side of the protective shell (103) is provided with a deep ploughing assembly (2) to the lower end; The deep ploughing assembly (2) comprises connecting rods (205), the number of the connecting rods (205) is two, and both ends of the two connecting rods (205) are rotatably installed in the interior of the protective shell (103); The connecting rod (205) is fixedly installed with a connecting ring (206) on the circumferential surface, and the lower end of the connecting ring (206) is rotatably provided with a deep ploughing knife (209); The lower end of the main mounting frame (1) is provided with a screening assembly (4), the screening assembly (4) comprises an installation shell (402), the interior of the installation shell (402) is provided with a first screening net (406), and the interior of the installation shell (402) is provided with a second screening net (410) at the lower end; The inner side of the right end of the main mounting frame (1) is provided with a discharging assembly (5), the discharging assembly (5) comprises a U-shaped mounting frame (501), the inner side of the U-shaped mounting frame (501) is uniformly provided with a discharging conveyor belt (507), the upper end of the discharging conveyor belt (507) is provided with a suction pipe (511) at the middle, and the upper end of the suction pipe (511) is fixedly installed with a waste box (512).

2. A combined wheat drill according to claim 1, characterised in that: The left end of the main mounting frame (1) and the left end of the connecting plate (101) are fixedly installed with an installation rod (102), the outer circumferential surface of the installation rod (102) and the upper portion of the protective shell (103) are slidably connected, and the upper end of the main mounting frame (1) and the upper left side edge of the protective shell (103) are fixedly installed with a connecting frame (104).

3. The combination wheat drill of claim 1, wherein: The interior of the protective shell (103) is provided with three transverse horizontal through grooves (201), the interior of the protective shell (103) is fixedly installed with a first motor (202) in a symmetrical state, the output shaft of the first motor (202) is fixedly installed with an adjusting rod (203), the front end face to the rear end face of the adjusting rod (203) is in a through state, the interior of the adjusting rod (203) is slidably installed with a U-shaped frame (204), the lower ends of the U-shaped frame (204) extend to the lower portion of the protective shell (103) through the adjacent through grooves (201), and the lower end of the U-shaped frame (204) and the outer circumferential surface of the connecting rod (205) are fixedly connected.

4. The combination wheat drill of claim 1, wherein: The connecting rod (205) is fixedly installed with a connecting ring (206) on the circumferential surface, the lower end of the connecting ring (206) is provided with a gear ring (207), the upper end surface of the gear ring (207) is internally provided with a connecting groove (208), the connecting ring (206) is rotatably installed in the connecting groove (208), the lower end surface of the gear ring (207) is fixedly installed with a deep plowing knife (209), a plurality of chain (210) are rotatably installed on the circumferential surface of the gear ring (207), the inside of the rear end left and right two connecting rings (206) is fixedly installed with a servo motor (211), the output shaft of the servo motor (211) penetrates through the connecting groove (208) and the adjacent gear ring (207) and is fixedly connected.

5. The combination wheat drill of claim 1, wherein: The middle part of the main mounting frame (1) is rotatably installed with a telescopic cylinder (302) in a symmetrical state, the telescopic rod of the telescopic cylinder (302) is rotatably installed with a shell (301), the upper left side of the shell (301) is rotatably installed with an adjusting plate (3), the other end of the adjusting plate (3) is rotatably installed on the outer circumferential surface of the adjacent mounting rod (102).

6. A combination wheat drill according to claim 5 wherein: The front left side of the shell (301) is fixedly installed with a second motor (303), the output shaft of the second motor (303) extends to the inside of the shell (301), a plurality of pulverizing knives (304) are fixedly installed on the outer circumferential surface of the second motor (303) at equal intervals in the longitudinal direction.

7. The combination wheat drill of claim 1, wherein: The upper end surface of the mounting shell (402) is fixedly installed with a mounting head (401), both ends of the mounting head (401) are fixedly installed on the upper end surface of the main mounting frame (1), the front end surface left side of the mounting shell (402) is fixedly installed with a third motor (403) near the edge, the output shaft of the third motor (403) extends to the inside of the mounting shell (402), and a conveying assembly (404) is rotatably installed on the circumferential surface of the output shaft, the left end of the conveying assembly (404) is rotatably installed with an inclined insertion plate (405).

8. The combination wheat drill of claim 1, wherein: The inside of the mounting shell (402) is provided with a first screening net (406), the inside lower end of the mounting shell (402) is provided with a convex groove (407) near the edge, the inside of the convex groove (407) is slidably installed with a sliding table (408), the upper end of the sliding table (408) and the inside upper end surface of the convex groove (407) are fixedly installed with a spring (409), the inside of the sliding table (408) is fixedly installed with a second screening net (410), and the lower end surface corner of the second screening net (410) is fixedly installed with a vibrator (411).

9. The combination wheat drill of claim 1, wherein: The inside of the U-shaped mounting frame (501) is fixedly mounted with mounting vertical plates (502) in symmetrical state, two mounting vertical plates (502) form a group, the inner side upper ends of two adjacent mounting vertical plates (502) are fixedly mounted with a distribution box (504) in common, the outer side of the front end mounting vertical plate (502) is fixedly mounted with a fourth motor (503), the output shaft of the fourth motor (503) extends to the inside of the distribution box (504) one by one, and the circumferential surface of the output shaft is fixedly mounted with a discharging shaft (505) in the inside of the distribution box (504), and the upper end of the distribution box (504) is fixedly mounted with a main box (506) in common.

10. The combination wheat drill of claim 9, wherein: The lower ends of two adjacent distribution boxes (504) are provided with a discharging conveyor belt (507), the right side middle upper end of the discharging conveyor belt (507) is fixedly mounted with an outer protective shell (508), the left end of the outer protective shell (508) is fixedly mounted with a first detector (509), the front and rear ends of the first detector (509) are rotatably mounted with a ditching knife (510) in a symmetrical manner, the right end of the outer protective shell (508) is fixedly mounted with a first monitor (513), and the front and rear sides of the first monitor (513) are symmetrically provided with a reset knife (514).

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