Seedling belt self-cleaning type adjustable seeding device

Abstract

The invention discloses a seedling belt self-cleaning type adjustable seeding device which comprises a mounting frame, and at least one set of seed taking and hole forming assembly and at least one set of impurity removing assembly are arranged on the mounting frame; each set of seed taking and hole forming assembly comprises a seed taking device and a hole forming assembly, a seed guide pipe of the seed taking device is installed on the installation frame in a sliding mode, the hole forming assembly comprises a telescopic sleeve and a hole forming device, and the telescopic sleeve is installed on the seed guide pipe in a sliding and sleeving mode; each impurity removing assembly comprises a poking wheel, the poking wheel comprises a poking wheel shaft sleeve and a plurality of poking rod assemblies, the poking wheel shaft sleeves are fixed to the main transmission shaft, a plurality of cleaning plates are installed on the poking rod assemblies respectively, and the main transmission shaft is driven to rotate through a driving mechanism to drive the cleaning plates to slide on the poking rod assemblies; and meanwhile, the cavitation adjusting mechanism is downwards extruded through multiple groups of driving lever assemblies so as to drive the telescopic sleeve to move downwards. The device has the advantages that the functions of autonomously burying and opening the hole forming part, adjusting the seeding plant spacing and the seeding depth, cleaning sundries in a seedling planting belt before seeding and the like are realized.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and equipment technology, and in particular to a self-cleaning adjustable seeding device with seedling strips. Background Technology

[0002] Hill sowing is a major method of precision crop seeding, effectively meeting the requirements of reasonable seed distribution and uniform plant spacing in the field, while avoiding double sowing, missed sowing, and seed damage. Currently, hill sowing machines primarily use sowing wheels. During operation, the wheel rotates due to friction with the ground, and its own weight forces the hill-forming components into the soil to complete the hill-forming and sowing process. The plant spacing and sowing depth are determined by parameters on the hill-forming components. Therefore, the operation suffers from problems such as poor adaptability of the hill-forming components to the soil, untimely activation of the components, and difficulty in adjusting the hill-forming spacing and depth. This leads to poor adaptability, unstable sowing quality, and limited versatility in hill sowing machines. When crop planting patterns differ, it is usually necessary to replace the sowing components in real time to meet the needs of different planting patterns. The complex structure of hill sowing machines makes component replacement cumbersome, reducing efficiency and increasing labor intensity. Improving the quality of hill sowing machines and enhancing their versatility, reliability, and efficiency is of great significance for the promotion, application, and development of seeding machinery. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a self-cleaning adjustable seeding device for seedlings, which can realize functions such as autonomous soil entry of the seedling hole component, opening, and adjustment of seeding spacing and depth, as well as cleaning of debris from the seedling strip before sowing.

[0004] This invention is achieved through the following technical solution:

[0005] A self-cleaning adjustable seeding device includes a mounting frame, on which at least one set of seed-collecting and hole-forming components and at least one set of debris-cleaning components are provided;

[0006] Each seed collection and hole-forming assembly includes a seed collector and a hole-forming assembly arranged vertically. The seed collector includes a seed box and a seed guide tube connected vertically. The seed guide tube is slidably mounted on the mounting frame and can slide back and forth along the mounting frame. The hole-forming assembly includes a telescopic sleeve and a hole-forming device connected vertically. The telescopic sleeve is slidably mounted on the seed guide tube and can only slide vertically along the seed guide tube. The bottom of the telescopic sleeve extends below the seed guide tube and is equipped with a hole-forming device. The telescopic sleeve is elastically supported by a hole-forming adjustment mechanism mounted on the mounting frame.

[0007] Each set of cleaning components is positioned in front of the corresponding seed-collecting and hole-forming component. Each set of cleaning components includes a dial wheel, which includes a dial wheel bushing and multiple sets of lever assemblies evenly distributed circumferentially along the dial wheel bushing. Each set of lever assemblies includes two levers spaced apart axially along the dial wheel bushing. Each lever extends radially outward along the dial wheel bushing. The dial wheel bushing is fixedly mounted on the main drive shaft, which extends axially in the left-right direction and is rotatably mounted on a mounting bracket. Multiple cleaning plates are mounted on the multiple sets of lever assemblies. The two ends of the cleaning plates are slidably mounted on the two levers of the corresponding lever assembly. One end of each cleaning plate has a mounting post extending axially along the dial wheel. A mounting bracket is rotatably mounted on the mounting bracket. An eccentric rotating shaft has a fixed end and a movable end that are eccentrically positioned and parallel to each other. The fixed end of the eccentric rotating shaft is fixed to the mounting bracket and is coaxial with the dial wheel bushing. The movable end of the eccentric rotating shaft is fitted with multiple adjusting rods. The outer ends of the adjusting rods are rotatably connected to the mounting posts of multiple cleaning plates. The main drive shaft is driven to rotate through the drive mechanism, which in turn drives the dial wheel to rotate. Under the action of the eccentric rotating shaft and the multiple adjusting rods, the multiple cleaning plates slide on multiple sets of lever assemblies. At the same time, the outer sections of the multiple sets of lever assemblies of the dial wheel press down on the cavity forming adjustment mechanism, causing the cavity forming adjustment mechanism to drive the telescopic sleeve to move downward, thereby realizing the downward movement of the telescopic sleeve and the cavity forming device.

[0008] As a preferred embodiment of the above-mentioned seeding device, the mounting frame is provided with two sets of seed-collecting and hole-forming components and two sets of cleaning components that correspond one-to-one, with the two sets of seed-collecting and hole-forming components arranged in a left-right interval.

[0009] As a preferred embodiment of the above-mentioned sowing device, each set of seed-collecting and hole-forming components is provided with an adjusting mounting rod on the seed guide tube. The adjusting mounting rods of the two sets of seed-collecting and hole-forming components are mounted across a fixed mounting rod. The left and right ends of the fixed mounting rod are slidably mounted on the mounting frame. The fixed mounting rod is driven to slide back and forth by the front and rear adjustment mechanism, thereby driving the two sets of seed-collecting and hole-forming components to move back and forth.

[0010] The front-to-back adjustment mechanism includes two push-pull plates and two push-pull adjustment wheels. One end of each push-pull plate is fixedly mounted on a fixed mounting rod in a left-right arrangement. The other end of each push-pull plate has a vertically extending push-pull groove. The two push-pull adjustment wheels are arranged opposite each other and are located inside the two push-pull grooves respectively. The two push-pull adjustment wheels are coaxially fixedly mounted on a drive shaft. The drive shaft extends in the left-right direction and is rotatably mounted on a mounting frame. The outer sides of each push-pull adjustment wheel are provided with an eccentric drive lever. The drive levers of the two push-pull adjustment wheels slide in cooperation with the push-pull grooves of the two push-pull plates and can only slide vertically along the push-pull grooves. When the two push-pull adjustment wheels rotate, the two eccentric drive levers push the two push-pull grooves respectively, thereby driving the fixed mounting rod to slide back and forth through the two push-pull plates.

[0011] As a preferred embodiment of the above-mentioned sowing device, the drive shaft is connected to the main drive shaft through a transmission mechanism. The transmission mechanism includes an intermediate transmission mechanism located between the drive shaft and the main drive shaft. The intermediate transmission mechanism includes an intermediate drive shaft and a large sprocket and a small sprocket fixedly mounted on the intermediate drive shaft. A main gear and a main sprocket are fixedly mounted on the main drive shaft, and a drive sprocket is fixedly mounted on the drive shaft. The main sprocket and the small sprocket, and the large sprocket and the drive sprocket are respectively connected by chains. The main gear is driven to rotate by a driver, thereby driving the main drive shaft and the drive shaft to rotate.

[0012] As a preferred embodiment of the aforementioned sowing device, the hole-forming adjustment mechanism includes an adjusting body and a return spring. A vertically extending bracket is provided on the mounting frame. The adjusting body is slidably mounted on the bracket and can only slide vertically along the bracket. A base plate is provided on the bracket. The return spring is fitted onto the bracket and located above the base plate, providing elastic support for the adjusting body. Two sliding adjusting rods are provided on one side of the adjusting body, each with a sliding groove extending forward and backward. Height adjusting rods extending left and right are provided on both sides of the telescopic sleeve. The two height adjusting rods of the telescopic sleeve are inserted into the sliding grooves of the two sliding adjusting rods and can only slide forward and backward along the sliding grooves. Moving push rods extending left and right are provided on both sides of the adjusting body. During the rotation of the dial wheel, the outer sections of the two levers in each set of lever assemblies of the dial wheel press downward against the moving push rods on both sides of the adjusting body. Under the combined action of the sliding grooves of the two sliding adjusting rods and the two height adjusting rods of the telescopic sleeve, the telescopic sleeve is moved downward.

[0013] As a preferred embodiment of the above-mentioned sowing device, the seed box has a material discharge hole at the bottom, and a seed-collecting wheel is provided below the material discharge hole. The seed-collecting wheel is rotatably mounted on the seed guide tube through seed-collecting wheel shafts at both ends and a first torsion spring. Under the action of the first torsion spring, the seed-collecting hole on the seed-collecting wheel faces upward toward the inner cavity of the seed box. One of the seed-collecting wheel shafts extends out of the seed guide tube, bends upward at an incline, and then extends in the opposite direction to form a horizontal section. The horizontal section of the seed-collecting wheel shaft is located on the front side of the seed guide tube and extends in the left and right direction. A seed-collecting pressure rod extending vertically upward is provided on the front side of the telescopic sleeve. A pushing groove is opened at the top of the seed-collecting pressure rod. During the upward movement of the telescopic sleeve, the horizontal section of the seed-collecting wheel shaft is pushed upward through the pushing groove at the top of the seed-collecting pressure rod, thereby driving the seed-collecting wheel shaft to rotate.

[0014] As a preferred embodiment of the aforementioned sowing device, the hole-forming device is formed by two fixed claws and a movable claw in the shape of a semi-conical shell, which are joined together to form a complete conical shell. The pointed end of the hole-forming device faces downward. The lower end of the telescopic sleeve has hinge rods on the left and right sides of the mounting tube. The upper end of the fixed claw is fixed to the two hinge rods of the mounting tube on the left and right sides respectively. The upper end of the movable claw is hinged to the two hinge rods of the mounting tube on the left and right sides respectively through hinge sleeves. One of the hinge sleeves is fixed with an upwardly extending pressing rod with a bent end. A second torsion spring is provided between the hinge rod and the hinge sleeve. In the natural state, under the action of the second torsion spring, the movable claw and the fixed claw are in contact, so that the hole-forming device is in a closed state. When the bent end of the pressing rod is squeezed by an external force, it will drive the movable claw to rotate away from the fixed claw, so that the hole-forming device opens.

[0015] As a preferred embodiment of the above-mentioned sowing device, the lower section of the seed guide tube is provided with a pressing wheel shaft extending in the left-right direction on one side, and a vertically extending clearance groove is opened on one side of the telescopic sleeve. The pressing wheel shaft extends out from the clearance groove of the telescopic sleeve and is provided with a pressing wheel. As the hole-forming device moves up and down, the pressing wheel circumferential surface of the pressing wheel presses the bent end of the pressing rod of the corresponding hole-forming device.

[0016] As a preferred embodiment of the above-mentioned seeding device, the lever consists of a lever body and an adjusting squeezing rod. The inner end of the lever body is fixed on the lever wheel bushing, and the inner end of the adjusting squeezing rod is detachably connected to the outer end of the lever body. The lever is pressed downward by the adjusting squeezing rod to form a hole adjustment mechanism.

[0017] As a preferred embodiment of the above-mentioned seeding device, the adjusting mounting rod extends in the front-to-back direction, and the mounting frame is provided with a positioning sleeve that extends in the front-to-back direction, with the rear section of the adjusting mounting rod slidingly engaging with the inner hole of the positioning sleeve.

[0018] The present invention has the following advantages over the prior art:

[0019] This invention provides a self-cleaning adjustable seeding device with a seedling strip, which enables precise and autonomous hole-forming and sowing, and allows for effective adjustment of sowing spacing and depth without replacing the hole-forming components according to crop planting agronomical needs. It also automatically cleans debris from the seedling strip before sowing, providing favorable conditions for hole-forming and sowing. This invention solves problems such as difficulty in seeder entry into the soil and poor adaptability of existing seeders, missed sowing due to untimely or inability to open the hole-forming components, and the complexity, low efficiency, and poor operational flexibility and adaptability caused by replacing hole-forming components to meet different planting patterns. Furthermore, it automatically cleans impurities from the sowing strip before sowing, providing favorable working conditions and improving the quality of hole-forming and sowing. This invention offers a new approach to the design and development of seeding devices. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the installation structure of the two sets of cleaning components of the present invention on the mounting frame.

[0022] Figure 3 This is a schematic diagram of the cooperation structure between the impurity removal component and the cavity forming adjustment mechanism of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure of the cleaning component of the present invention.

[0024] Figure 5 This is a schematic diagram of the cleaning plate of the present invention.

[0025] Figure 6 This is a schematic diagram of the front and rear adjustment mechanism and the mounting bracket of the present invention.

[0026] Figure 7 This is a schematic diagram of the transmission mechanism and the mounting bracket of the present invention.

[0027] Figure 8 This is a schematic diagram of the structure of the two sets of seed-collecting and hole-forming components of the present invention.

[0028] Figure 9 This is a schematic diagram of the structure of the cavity-forming adjustment mechanism and the telescopic sleeve of the present invention.

[0029] Figure 10 This is a schematic diagram of the seed-collecting wheel of the present invention.

[0030] Figure 11 This is a schematic diagram of the front and rear adjustment mechanism of the present invention.

[0031] Figure 12 This is a schematic diagram of the telescopic sleeve of the present invention.

[0032] Figure 13 This is a schematic diagram of the cavity-forming device of the present invention.

[0033] Figure 14 This is a schematic diagram of the disassembled structure of the cavity-forming device of the present invention.

[0034] Numbered in the diagram: 1. Mounting frame; 2. Seed picking and hole-forming assembly; 3. Cleaning assembly; 4. Seed box; 5. Seed guide tube; 6. Adjusting mounting rod; 7. Positioning sleeve; 8. Fixed mounting rod; 9. Mounting groove; 10. Push-pull plate; 11. Push-pull adjusting wheel; 12. Push-pull long groove; 13. Drive shaft; 14. Drive lever; 15. Main drive shaft; 16. Intermediate drive shaft; 17. Large sprocket; 18. Small sprocket; 19. Main gear; 20. Main sprocket; 21. Drive sprocket; 22. Telescopic sleeve; 23. Hole-forming device; 24. Seed picking wheel; 25. Seed picking wheel shaft; 26. Horizontal section; 27. Seed picking wheel. Seed pressing rod; 28 Pushing slot; 29 Fixed claw; 30 Movable claw; 31 Hinge rod; 32 Mounting round tube; 33 Hinge sleeve; 34 Extrusion rod; 35 Clearance slot; 36 Extrusion wheel; 37 Dial wheel bushing; 38 Dial lever; 39 Dial lever body; 40 Adjusting extrusion rod; 41 Cleaning plate; 42 Mounting column; 43 Eccentric rotating shaft; 44 Adjusting pull rod; 45 Adjusting body; 46 Return spring; 47 Bracket; 48 Base plate; 49 Sliding adjusting rod; 50 Sliding slot; 51 Height adjusting rod; 52 Moving push rod; 53 Seed picking hole. Detailed Implementation

[0035] The embodiments of the present invention are described in detail below. These embodiments are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operation processes. However, the scope of protection of the present invention is not limited to the following embodiments.

[0036] See Figures 1 to 14 This embodiment discloses a self-cleaning adjustable seeding device with seedling strips, including a mounting frame 1. The mounting frame 1 is provided with at least one set of seed-collecting and hole-forming components 2 and at least one set of cleaning components 3. In this embodiment, the mounting frame is provided with two sets of seed-collecting and hole-forming components 2 and two sets of cleaning components 3 that correspond one-to-one, and the two sets of seed-collecting and hole-forming components 2 are arranged in a left-right interval.

[0037] Each seed collection and hole-forming assembly 2 includes a seed collector and a hole-forming assembly arranged vertically. The seed collector includes a seed box 4 and a seed guide tube 5 connected vertically. The seed guide tube 5 is slidably mounted on the mounting frame 1 and can slide back and forth along the mounting frame 1.

[0038] Each seed-collecting and hole-forming assembly 2 has an adjusting rod 6 on its seed guide tube 5. The adjusting rod 6 extends in the front-to-back direction, and the mounting frame 1 has a positioning sleeve 7 that extends in the front-to-back direction. The rear section of the adjusting rod 6 slides into the inner hole of the positioning sleeve 7, and the positioning sleeve 7 provides guidance and support for the front-to-back movement of the adjusting rod 6. The adjusting rods 6 of the two sets of seed-collecting and hole-forming assemblies 2 are mounted transversely on a fixed mounting rod 8. The left and right ends of the fixed mounting rod 8 are slidably mounted in the mounting grooves 9 on the left and right sides of the mounting frame 1, respectively. The fixed mounting rod 8 is driven to slide back and forth along the two mounting grooves 9 by a front-to-back adjustment mechanism, thereby driving the two sets of seed-collecting and hole-forming assemblies 2 to move back and forth.

[0039] The front-to-back adjustment mechanism includes two push-pull plates 10 and two push-pull adjustment wheels 11. One end of the two push-pull plates 10 is arranged left and right and fixedly mounted on the fixed mounting rod 8. The other end of the two push-pull plates 10 has a vertically extending push-pull groove 12. The two push-pull adjustment wheels 11 are arranged left and right opposite each other and are located inside the two push-pull grooves 12 respectively. The two push-pull adjustment wheels 11 are coaxially fixedly mounted on the drive shaft 13. The drive shaft 13 extends in the left and right direction and is rotatably mounted on the mounting bracket 1. The outer sides of the two push-pull adjustment wheels 11 are respectively provided with eccentric drive levers 14. The drive levers 14 of the two push-pull adjustment wheels 11 are respectively slidably engaged with the push-pull grooves 12 of the two push-pull plates 10 and can only slide vertically along the push-pull grooves 12. When the two push-pull adjustment wheels 11 rotate, the two eccentric drive levers 14 push the two push-pull grooves 12 respectively, thereby driving the fixed mounting rod 8 to slide back and forth through the two push-pull plates 10.

[0040] The drive shaft 13 is connected to the main drive shaft 15 via a transmission mechanism. The transmission mechanism includes an intermediate transmission mechanism located between the drive shaft 13 and the main drive shaft 15. The intermediate transmission mechanism includes an intermediate drive shaft 16 and a large sprocket 17 and a small sprocket 18 fixedly mounted on the intermediate drive shaft 16. The intermediate drive shaft 16 is rotatably mounted on the mounting bracket 1. The main drive shaft 15 is fixedly mounted with a main gear 19 and a main sprocket 20. The drive shaft 13 is fixedly mounted with a drive sprocket 21. The main sprocket 20 and the small sprocket 18, and the large sprocket 17 and the drive sprocket 21 are respectively connected by chains. The drive unit drives the main gear 19 to rotate, thereby driving the main drive shaft 15 and the drive shaft 13 to rotate.

[0041] The hole-forming assembly includes a telescopic sleeve 22 and a hole-forming device 23 connected vertically. The telescopic sleeve 22 is slidably fitted on the seed guide tube 5 and can only slide vertically along the seed guide tube 5. The bottom of the telescopic sleeve 22 extends below the seed guide tube 5 and is provided with the hole-forming device 23. The telescopic sleeve 22 is elastically supported by the hole-forming adjustment mechanism installed on the mounting frame 1.

[0042] The seed box 4 has a material discharge hole at its bottom. Below the material discharge hole, there is a seed-collecting wheel 24. The seed-collecting wheel 24 is rotatably mounted on the seed guide tube 5 via seed-collecting wheel shafts 25 at both ends and a first torsion spring. Under the action of the first torsion spring, the seed-collecting hole 53 on the seed-collecting wheel 24 faces upward toward the inner cavity of the seed box 4. One of the seed-collecting wheel shafts 25 extends out of the seed guide tube 5, bends upward at an incline, and then extends in the opposite direction to form a horizontal section 26. The horizontal section 26 of the seed-collecting wheel shaft 25 is located on the front side of the seed guide tube 5 and extends in the left-right direction. A seed-picking pressure rod 27 extending vertically upward is provided on the front side of the tube 22. The top of the seed-picking pressure rod 27 has a push-pull groove 28. During the upward movement of the telescopic sleeve 22, the push-pull groove 28 at the top of the seed-picking pressure rod 27 pushes the horizontal section 26 of the seed-picking wheel shaft 25 upward, thereby driving the seed-picking wheel shaft 25 to rotate. This causes the seed-picking hole 53 on the seed-picking wheel 24 to gradually face downward, so that the seeds of the seed box 4 can be sent into the seed guide tube 5, and then guided into the hole-forming device 23 below through the seed guide tube 5, in preparation for hole-forming sowing.

[0043] The cavity-forming device 23 is formed by two fixed claws 29 and movable claws 30 in the shape of semi-conical shells, which are joined together to form a complete conical shell. The pointed end of the cavity-forming device 23 faces downward. The mounting tube 32 at the lower end of the telescopic sleeve 22 is provided with hinge rods 31 on the left and right sides respectively. The upper left and right sides of the fixed claws 29 are fixed to the two hinge rods 31 of the mounting tube 32 respectively. The upper left and right sides of the movable claws 30 are hinged to the two hinge rods 31 of the mounting tube 32 respectively through hinge sleeves 33. One of the hinge sleeves 33 is fixed with an upwardly extending pressing rod 34. The pressing rod 34 has a bent end. A second torsion spring is provided between the hinge rod 31 and the hinge sleeve 33. In the natural state, under the action of the second torsion spring, the movable claws 30 and the fixed claws 29 are in contact, so that the cavity-forming device 23 is in a closed state. When the bent end of the pressing rod 34 is squeezed by external force, it will drive the movable claws 30 to rotate away from the fixed claws 29, so that the cavity-forming device 23 opens.

[0044] The lower section of the seed guide tube 5 is provided with a pressing wheel shaft extending in the left and right direction. The telescopic sleeve 22 has a vertically extending clearance groove 35 on one side. The pressing wheel shaft extends out from the clearance groove 35 of the telescopic sleeve 22 and is provided with a pressing wheel 36. As the hole-forming device 23 moves up and down, the pressing wheel 36 circumferentially presses the bent end of the pressing rod 34 of the corresponding hole-forming device 23.

[0045] Each set of cleaning components 3 is positioned in front of the corresponding seed-taking and hole-forming component 2. Each set of cleaning components 3 includes a dial wheel, which includes a dial wheel bushing 37 and multiple sets of lever assemblies evenly distributed around the dial wheel bushing 37. Each set of lever assemblies includes two levers 38 spaced apart along the axial direction of the dial wheel bushing 37. Each lever 38 extends radially outward along the dial wheel bushing 37. Each lever 38 consists of a lever body 39 and an adjusting pressure rod 40. The inner end of the lever body 39 is fixed to the dial wheel bushing 37. The inner end of the adjusting pressure rod 40 is detachably connected to the outer end of the lever body 39 by a threaded connection. The lever 38 presses down on the hole-forming adjustment mechanism by the adjusting pressure rod 40. By rotating the adjusting pressure rod 40, the amount of its extension relative to the lever body 39 can be adjusted, thereby adjusting the spacing between plants in the hole and the depth of penetration into the soil. The dial wheel bushing 37 is fixedly mounted on the main drive shaft 15. The main drive shaft 15 extends axially in the left-right direction and is rotatably mounted on the mounting bracket 1. Multiple cleaning plates 41 are respectively mounted on multiple sets of lever assemblies. The two ends of the cleaning plates 41 are slidably mounted on the two levers 38 of the corresponding lever assembly. One end of each cleaning plate 41 is provided with a mounting post 42 extending axially along the dial wheel. An eccentric shaft 43 is rotatably mounted on the mounting bracket 1. The fixed shaft end and the movable shaft end of the eccentric shaft 43 are eccentrically set and parallel. The fixed shaft end of the eccentric shaft 43 is fixed on the mounting bracket 1 and is the same as the dial wheel bushing 37. The eccentric rotating shaft 43 has multiple adjusting rods 44 mounted on its movable end. The outer ends of the adjusting rods 44 are rotatably connected to the mounting posts 42 of the cleaning plates 41. The main drive shaft 15 is driven to rotate by the drive mechanism, which in turn drives the dial wheel to rotate. Under the action of the eccentric rotating shaft 43 and the multiple adjusting rods 44, the multiple cleaning plates 41 slide on multiple sets of lever assemblies. At the same time, the outer sections of the multiple sets of lever assemblies of the dial wheel press down on the cavity forming adjustment mechanism, which causes the cavity forming adjustment mechanism to move the telescopic sleeve 22 downward, thereby realizing the downward movement of the telescopic sleeve 22 and the cavity forming device 23.

[0046] The hole-forming adjustment mechanism includes an adjusting body 45 and a return spring 46. A vertically extending bracket 47 is provided on the mounting frame 1. The adjusting body 45 is slidably mounted on the bracket 47 and can only slide vertically along the bracket 47. A base plate 48 is provided on the bracket 47. The return spring 46 is fitted onto the bracket 47 and located on the base plate 48, providing elastic support to the adjusting body 45. Two sliding adjusting rods 49 are provided on one side of the adjusting body 45, each with a sliding groove 50 extending forward and backward. The telescopic sleeve 22 has left and right extensions on its left and right sides, respectively. The height adjustment rod 51 and the two height adjustment rods 51 of the telescopic sleeve 22 are respectively inserted into the sliding grooves 50 of the two sliding adjustment rods 49 and can only slide back and forth along the sliding grooves 50. The left and right sides of the adjustment body 45 are respectively provided with movable push rods 52 extending left and right. During the rotation of the dial wheel, the outer sections of the two levers 38 of each group of lever assemblies of the dial wheel press down on the movable push rods 52 on the left and right sides of the adjustment body 45. Under the combined action of the sliding grooves 50 of the two sliding adjustment rods 49 and the two height adjustment rods 51 of the telescopic sleeve 22, the telescopic sleeve 22 is driven to move down.

[0047] Before planting, the sowing spacing and depth are adjusted according to the planting pattern of the crop. The hole-forming device 23 forms holes by rotating a dial, where the adjusting squeezing rod 40 presses against the corresponding moving push rod 52 of the adjusting body 45, thus pushing the adjusting body 45 downwards along the square support 47. The sliding groove 50 at the rear of the adjusting body 45 then presses against the corresponding height adjusting rod 51, causing the telescopic sleeve 22 and its lower end, the hole-forming device 23, to move downwards for hole-forming. Therefore, the circumferential distance between adjacent dial components involved in the squeezing determines the sowing spacing, and the contact length between the adjusting squeezing rod 40 and the moving push rod 52 determines the soil penetration depth of the hole-forming device 23. The rod 40 is screwed into the threaded hole of the lever body 39 via a threaded rod. Rotating the adjusting squeezing rod 40 adjusts its extension relative to the lever body 39, thereby determining whether the adjusting squeezing rod 40 participates in squeezing or the downward movement distance of the corresponding moving push rod 52. When adjusting the sowing spacing, only the adjusting squeezing rod 40 that does not participate in squeezing needs to be screwed into the threaded hole of the lever body 39. The adjusting squeezing rods 40 that participate in squeezing need to be evenly distributed on the lever wheel to ensure the uniformity of the sowing spacing. When adjusting the sowing depth, rotating the adjusting squeezing rod 40 adjusts its extension relative to the lever body 39, thereby adjusting the length of the moving push rod 52 that participates in squeezing. Adjustments can be made according to the needs of the sown crop planting pattern by screwing the adjusting squeezing rod 40 that does not participate in squeezing into the threaded hole of the lever body 39 and adjusting the extension of the adjusting squeezing rod 40 that participates in squeezing relative to the lever body 39.

[0048] In use, the sowing device is fixed to the implement via the mounting bracket 1. When the implement moves forward to sow seeds, it transmits power to the main gear 19. The main gear 19 drives the drive sprocket 21 to rotate counterclockwise via the main drive shaft 15 and the intermediate transmission mechanism, thereby driving the drive shaft 13 to rotate counterclockwise. The drive shaft 13 drives the two push-pull adjusting wheels 11 to rotate counterclockwise. The drive levers 14 on the two push-pull adjusting wheels 11 drive the two push-pull plates 10 to move in the front-back direction. In the initial state, the drive levers 14 on the push-pull adjusting wheels 11 are at the foremost position. The push-pull plate 10 fixes the mounting rod at the front end of the mounting groove 9, that is, the seed extractor drives the hole-forming device 23 at the lower end of the telescopic sleeve 22 to be at the front end during the working process. At this time, the reset spring 46 is in the reset state and elastically supports the adjusting body 45 at the highest position, so that the telescopic sleeve 22 is at the highest position on the seed guide tube 5, that is, the hole-forming device 23 at the lower end of the telescopic sleeve 22 is at the highest position above the ground. The seed-taking pressure rod 27 of the telescopic sleeve 22 pushes the horizontal section 26 of the seed-taking wheel shaft 25 upward through the upper push groove 28, and the seed-taking hole 53 on the seed-taking wheel 24 faces downward.The push-pull plate 10 drives the fixed mounting rod 8 to move from front to back along the mounting groove 9, which in turn drives the lower end mounting hole-forming device 23 to move from front to back through the telescopic sleeve 22 on the seed extractor. The dial wheel of the cleaning device rotates counterclockwise, and its lower cleaning plate 41 moves outward along the dial rod 38 under the action of the adjusting pull rod 44, gradually contacting the soil and pushing the seedling strip debris forward, thus cleaning the seedling strip and providing good hole-forming conditions for the next hole-forming. At the same time, the adjusting squeezing rod 40 on the dial wheel gradually begins to squeeze the corresponding moving push rod 52, pushing the adjusting body 45 downward along the bracket 47, and driving the hole-forming device 23 downward into the soil through the telescopic sleeve 22 to form a hole, while driving the seed-taking pressure rod 27. As the seed-collecting wheel shaft 25 moves downward, it disengages from the push groove 28 of the seed-collecting pressure rod 27. During the downward movement of the seed-collecting pressure rod 27, the seed-collecting wheel shaft 25 rotates and resets under the action of the first torsion spring. The seed-collecting hole 53 on the seed-collecting wheel 24 faces upward and connects with the seed box 4. Seeds from the seed box 4 fill the seed-collecting hole 53. Because the speed of the push-pull plate 10 moving in the front-back direction is equal to the forward speed of the machine, the backward movement speed of the hole-forming device 23 is equal to the forward speed of the machine but opposite in direction. When the hole-forming device 23 moves backward, it can achieve vertical entry into the soil and zero-speed hole-forming for seeding. During the downward movement of the hole-forming device 23, when its pressing rod 34 contacts the pressing wheel 36 on the seed-collecting device... Under the action of the extrusion wheel 36, the movable claw 30 on the seed-forming device 23 gradually opens, sowing the seeds in the seed-forming device 23 into the seed holes. When the adjusting extrusion rod 40 moves away from the moving push rod 52, the adjusting body 45 moves upward along the bracket 47 to reset under the action of the lower reset spring 46. At the same time, the seed-forming device 23 is moved upward from the seed hole to reset through the telescopic sleeve 22. During the upward movement of the seed-forming device 23, its extrusion rod 34 gradually disengages from the extrusion wheel 36 on the seed-collecting device. Under the action of the second torsion spring, the movable claw 30 of the seed-forming device 23 closes, and the seed-collecting pressure rod 27 is driven upward. During the upward movement of the seed-collecting pressure rod 27, when the seed-collecting wheel shaft 2... When the horizontal section 26 of seed 5 is re-locked into the upper push groove 28 of the seed-taking pressure rod 27, it is pushed upward by the seed-taking pressure rod 27, causing the seed-taking wheel shaft 25 to drive the seed-taking hole 53 to rotate out of the seed box 4, bringing the seeds out of the cavity of the seed box 4 and falling into the lower hole-forming device 23 through the seed guide tube 5, preparing for the next sowing. The drive shaft 13 drives the push-pull adjustment wheel 11 to continue to rotate counterclockwise. When the drive lever 14 on it moves to the last end, it drives the push-pull plate 10 to start moving from back to front to reset. At the same time, the cleaning device rotates counterclockwise, and its lower cleaning plate 41 moves inward along the lever 38 under the action of the adjustment pull plate, gradually leaving the soil, completing one hole-forming, sowing and seedling strip cleaning process.

[0049] The above are merely 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 within the protection scope of the present invention.

Claims

1. A self-cleaning adjustable seeding device with seedling trays, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with at least one set of seed-taking and hole-forming components (2) and at least one set of cleaning components (3); Each seed collection and hole-forming assembly (2) includes a seed collector and a hole-forming assembly arranged vertically. The seed collector includes a seed box (4) and a seed guide tube (5) connected vertically. The seed guide tube (5) is slidably mounted on the mounting frame (1) and can slide back and forth along the mounting frame (1). The hole-forming assembly includes a telescopic sleeve (22) and a hole-forming device (23) connected vertically. The telescopic sleeve (22) is slidably mounted on the seed guide tube (5) and can only slide vertically along the seed guide tube (5). The bottom of the telescopic sleeve (22) extends below the seed guide tube (5) and is provided with a hole-forming device (23). The telescopic sleeve (22) is elastically supported by a hole-forming adjustment mechanism installed on the mounting frame (1). Each set of cleaning components (3) is set in front of the corresponding seed-taking and hole-forming component (2). Each set of cleaning components (3) includes a dial wheel, which includes a dial wheel bushing (37) and multiple sets of lever assemblies evenly distributed along the circumference of the dial wheel bushing (37). Each set of lever assemblies includes two levers (38) spaced apart along the axial direction of the dial wheel bushing (37). Each lever (38) extends outward along the radial direction of the dial wheel bushing (37). The dial wheel bushing (37) is fixedly mounted on the main drive shaft (15). The main drive shaft (15) extends axially in the left and right direction and is rotatably mounted on the mounting frame (1). Multiple cleaning plates (41) are respectively mounted on the multiple sets of lever assemblies. The two ends of the cleaning plates (41) are slidably mounted on the two levers (38) of the corresponding lever assembly. One end of each cleaning plate (41) is provided with a mounting post (42) extending along the axial direction of the dial wheel. The mounting frame (1) is rotatably mounted on the lever assembly. Eccentric rotating shaft (43) is provided. The fixed shaft end and the movable shaft end of the eccentric rotating shaft (43) are eccentrically set and parallel. The fixed shaft end of the eccentric rotating shaft (43) is fixed on the mounting bracket (1) and coaxial with the dial wheel bushing (37). The movable shaft end of the eccentric rotating shaft (43) is rotatably fitted with multiple adjusting rods (44). The outer ends of the multiple adjusting rods (44) are rotatably connected to the mounting posts (42) of multiple cleaning plates (41) one by one. The main drive shaft (15) is driven to rotate through the drive mechanism, which drives the dial wheel to rotate. Under the action of the eccentric rotating shaft (43) and the multiple adjusting rods (44), multiple cleaning plates (41) are driven to slide on multiple sets of lever assemblies. At the same time, the outer section of the multiple sets of lever assemblies of the dial wheel is pressed downward to the cavity forming adjustment mechanism, so that the cavity forming adjustment mechanism drives the telescopic sleeve (22) to move downward, thereby realizing the downward movement of the telescopic sleeve (22) and the cavity forming device (23).

2. The self-cleaning adjustable seeding device with seedling strip as described in claim 1, characterized in that: The mounting frame is equipped with two sets of seed-taking and hole-forming components (2) and two sets of cleaning components (3) that correspond to each other. The two sets of seed-taking and hole-forming components (2) are arranged in a left-right interval.

3. The self-cleaning adjustable seeding device with seedling strip as described in claim 2, characterized in that: Each seed-collecting and hole-forming assembly (2) is provided with an adjusting rod (6) on its seed guide tube (5). The adjusting rods (6) of the two seed-collecting and hole-forming assemblies (2) are mounted across a fixed rod (8). The left and right ends of the fixed rod (8) are slidably mounted on the mounting frame (1). The fixed rod (8) is driven to slide back and forth by the front and rear adjustment mechanism, thereby driving the two seed-collecting and hole-forming assemblies (2) to move back and forth. The front and rear adjustment mechanism includes two push-pull plates (10) and two push-pull adjustment wheels (11). One end of the two push-pull plates (10) is arranged left and right and fixedly mounted on the fixed mounting rod (8). The other end of the two push-pull plates (10) has a vertically extending push-pull groove (12). The two push-pull adjustment wheels (11) are arranged left and right opposite each other and are located inside the two push-pull grooves (12). The two push-pull adjustment wheels (11) are coaxially fixedly mounted on the drive shaft (13). The drive shaft (13) extends in the left and right direction and rotates. Mounted on the mounting bracket (1), the two push-pull adjustment wheels (11) are respectively provided with eccentric drive levers (14) on their outer sides. The drive levers (14) of the two push-pull adjustment wheels (11) are respectively slidably engaged with the push-pull long grooves (12) of the two push-pull plates (10) and can only slide vertically along the push-pull long grooves (12). When the two push-pull adjustment wheels (11) rotate, the two push-pull long grooves (12) are pushed by the two eccentric drive levers (14), thereby driving the fixed mounting rod (8) to slide back and forth through the two push-pull plates (10).

4. The self-cleaning adjustable seeding device with seedling strip as described in claim 3, characterized in that: The drive shaft (13) is connected to the main drive shaft (15) through a transmission mechanism. The transmission mechanism includes an intermediate transmission mechanism located between the drive shaft (13) and the main drive shaft (15). The intermediate transmission mechanism includes an intermediate drive shaft (16) and a large sprocket (17) and a small sprocket (18) fixedly mounted on the intermediate drive shaft (16). The main drive shaft (15) is fixedly mounted with a main gear (19) and a main sprocket (20). The drive shaft (13) is fixedly mounted with a drive sprocket (21). The main sprocket (20) and the small sprocket (18) are connected by chains, and the large sprocket (17) and the drive sprocket (21) are connected by chains. The drive unit drives the main gear (19) to rotate, thereby driving the main drive shaft (15) and the drive shaft (13) to rotate.

5. The self-cleaning adjustable seeding device with seedling strip as described in claim 1, characterized in that: The hole-forming adjustment mechanism includes an adjustment body (45) and a return spring (46). A vertically extending bracket (47) is provided on the mounting frame (1). The adjustment body (45) is slidably mounted on the bracket (47) and can only slide vertically along the bracket (47). A base plate (48) is provided on the bracket (47). The return spring (46) is fitted on the bracket (47) and located on the base plate (48). The return spring (46) provides elastic support for the adjustment body (45). Two sliding adjustment rods (49) are provided on one side of the adjustment body (45). The two sliding adjustment rods (49) are respectively provided with sliding grooves (50) extending along the front and rear. The telescopic sleeve (22) is provided with two sliding adjustment rods (49) on the left and right sides respectively. The height adjustment rods (51) extending to the left and right, and the two height adjustment rods (51) of the telescopic sleeve (22) are respectively inserted into the sliding grooves (50) of the two sliding adjustment rods (49) and can only slide back and forth along the sliding grooves (50). The left and right sides of the adjustment body (45) are respectively provided with moving push rods (52) extending to the left and right. During the rotation of the dial, the outer sections of the two levers (38) of each group of lever assemblies of the dial press down on the moving push rods (52) on the left and right sides of the adjustment body (45). Under the combined action of the sliding grooves (50) of the two sliding adjustment rods (49) and the two height adjustment rods (51) of the telescopic sleeve (22), the telescopic sleeve (22) is driven to move down.

6. The self-cleaning adjustable seeding device with seedling strip as described in claim 1, characterized in that: The seed box (4) has a material discharge hole at the bottom. Below the material discharge hole of the seed box (4) is a seed picking wheel (24). The seed picking wheel (24) is rotatably mounted on the seed guide tube (5) through the seed picking wheel shafts (25) at both ends and the first torsion spring. Under the action of the first torsion spring, the seed picking hole (53) on the seed picking wheel (24) faces upward toward the inner cavity of the seed box (4). One of the seed picking wheel shafts (25) extends out of the seed guide tube (5), bends upward at an incline, and then extends in the opposite direction to form a horizontal section (26). The horizontal section (26) of the seed-collecting wheel shaft (25) is located in front of the seed guide tube (5) and extends in the left and right direction. The front side of the telescopic sleeve (22) is provided with a vertically upward extending seed-collecting pressure rod (27). The top of the seed-collecting pressure rod (27) has a push-pull groove (28). During the upward movement of the telescopic sleeve (22), the horizontal section (26) of the seed-collecting wheel shaft (25) is pushed upward through the push-pull groove (28) at the top of the seed-collecting pressure rod (27), thereby driving the seed-collecting wheel shaft (25) to rotate.

7. The self-cleaning adjustable seeding device with seedling strip as described in claim 1, characterized in that: The cavity-forming device (23) is formed by two fixed claws (29) and movable claws (30) in the shape of semi-conical shells, which are joined together to form a complete conical shell. The pointed end of the cavity-forming device (23) faces downward. The lower end of the telescopic sleeve (22) is provided with hinge rods (31) on the left and right sides of the mounting tube (32). The upper end of the fixed claws (29) is fixed to the two hinge rods (31) of the mounting tube (32) on the left and right sides respectively. The upper end of the movable claws (30) is hinged to the two hinge rods (31) of the mounting tube (32) on the left and right sides respectively through the hinge sleeves (33). On the hinge rod (31), one of the hinge sleeves (33) is fixed with an upwardly extending compression rod (34). The compression rod (34) has a bent end. A second torsion spring is provided between the hinge rod (31) and the hinge sleeve (33). In the natural state, under the action of the second torsion spring, the movable claw (30) and the fixed claw (29) are in contact, so that the cavity forming device (23) is in a closed state. When the bent end of the compression rod (34) is squeezed by external force, it will drive the movable claw (30) to rotate away from the fixed claw (29), so that the cavity forming device (23) opens.

8. The self-cleaning adjustable seeding device with seedling strip as described in claim 7, characterized in that: The lower section of the seed guide tube (5) is provided with a pressing wheel shaft extending in the left and right direction. The telescopic sleeve (22) has a vertically extending clearance groove (35) on one side. The pressing wheel shaft extends out from the clearance groove (35) of the telescopic sleeve (22) and is provided with a pressing wheel (36). As the hole-forming device (23) moves up and down, the pressing wheel (36) circumferentially faces the bending end of the pressing rod (34) of the corresponding hole-forming device (23) to press.

9. The self-cleaning adjustable seeding device with seedling strip as described in claim 1, characterized in that: The lever (38) consists of a lever body (39) and an adjusting squeezing rod (40). The inner end of the lever body (39) is fixed on the dial wheel bushing (37). The inner end of the adjusting squeezing rod (40) is detachably connected to the outer end of the lever body (39). The lever (38) is pressed downward by the adjusting squeezing rod (40) to form a cavity adjustment mechanism.

10. The self-cleaning adjustable seeding device with seedling strip as described in claim 2, characterized in that: The adjusting mounting rod (6) extends in the front-to-back direction, and the mounting bracket (1) is provided with a positioning sleeve (7) extending in the front-to-back direction. The rear section of the adjusting mounting rod (6) slides in conjunction with the inner hole of the positioning sleeve (7).

Images