Multi-row punching equipment and punching method for Chinese yam planting

Abstract

The invention relates to the technical field of Chinese yam planting, and discloses multi-row punching equipment for Chinese yam planting and a punching method.The multi-row punching equipment comprises a rack, a mounting frame is fixedly connected to one side of the top of the rack, a connecting plate is mounted on the outer side of the mounting frame through a lifting assembly, and two driving racks are slidably connected to the inner side of the connecting plate; a driving gear is movably connected to the inner side of the connecting plate through a bearing, a connecting sleeve is connected to the outer side of a driving rack through a connecting strip, and a spline sleeve is rotationally installed on the inner side of the connecting sleeve. By arranging the multiple spiral drill rods, multiple punching operations can be completed at a time, the punching efficiency is greatly improved, and the Chinese yam planting time and labor cost are saved. According to the equipment, the distance between the spiral drill rods can be flexibly adjusted so as to meet the planting requirements and row spacing requirements of different varieties of Chinese yams, the reasonability and scientificity of Chinese yam planting are guaranteed, better growth and development of the Chinese yams are facilitated, meanwhile, the universality of the equipment is improved, and the application range of the equipment is widened.

Description

Technical Field

[0001] The invention relates to the technical field of yam planting, in particular to a multi-row hole-punching device and a hole-punching method for yam planting. Background Art

[0002] As a common medicinal and edible plant, Chinese yam cultivation has widespread market demand. Drilling is a key step in yam cultivation. Traditional methods rely on manual drilling or single-hole drilling machines. These methods have numerous drawbacks: manual drilling is inefficient and labor-intensive, and consistent hole depth and spacing are difficult to achieve, impacting the uniformity of yam growth. While single-hole drilling machines offer some efficiency improvements, they still require repeated operations when planting multiple rows, failing to meet the efficiency requirements of large-scale cultivation.

[0003] At the same time, most existing yam planting equipment is single-function, capable only of drilling holes. Subsequent steps such as sowing, fertilizing, and covering the soil require additional manual labor or separate equipment, resulting in a cumbersome and disconnected planting process. Furthermore, fertilization often relies on manual experience, failing to accurately quantify the yam's needs. This can easily lead to fertilizer waste or insufficient quantities, increasing planting costs and potentially impacting yam growth due to uneven fertilization.

[0004] Therefore, those skilled in the art have proposed a multi-row hole-punching device and a hole-punching method for yam planting to solve the above problems. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a multi-row hole-punching device and a hole-punching method for yam planting, which solves the problems raised in the above-mentioned background technology.

[0006] The transmission mechanism is that one end is that of a pinion and the other end is connected with the pinion on the up-down knob side, and the other end is connected with the pinion on the up-down knob side.

[0007] Preferably, a motor is installed on the inner side of the connecting plate, the output end of the motor is fixedly connected to the outer side of the driving gear, the outer sides of the two driving racks are meshed with the outer sides of the driving gear, the spline sleeve is arranged on the outside of the spline shaft, and the spline sleeve and the spline shaft are clearance-fitted, and the outer side of the bevel gear one is meshed with the outer side of the bevel gear two.

[0008] Preferably, a fixing rod is fixedly connected to the outer side of the mounting frame, a plurality of bearing sleeves are slidably connected to the outer surface of the fixing rod, and the bearing sleeves are fixedly connected to the outer surface of the connecting sleeve.

[0009] Preferably, the lifting assembly includes a dual-axis motor installed at the bottom of the mounting frame, the top output end of the dual-axis motor is fixedly connected to a driving screw, the outer side of the driving screw is threadedly connected to a threaded plate, and the internal front and rear through holes of the threaded plate are slidably connected to guide rods, the upper and lower ends of the guide rods are fixedly connected to the inner side of the mounting frame, and the outer side of the threaded plate is fixedly connected to the outer side of the connecting plate.

[0010] Preferably, a placement box is fixedly connected to the middle side of the top of the frame, a discharge barrel is fixedly connected to the bottom of the placement box, a connecting shaft is movably connected to the inside of the discharge barrel through a bearing, the outer surface of the connecting shaft is fixedly connected to a plurality of rotating plates, and the bottom output end is fixedly connected to bevel gear three, a transmission shaft is rotatably installed at the bottom of the frame, one end of the transmission shaft is fixedly connected to bevel gear four, the other end of the transmission shaft is fixedly connected to synchronous wheel one, and the outside of the synchronous wheel one is connected to synchronous wheel two through belt drive.

[0011] Preferably, the synchronous gear 2 is fixedly connected to one end of the connecting shaft, and the outer side of the bevel gear 3 is meshed with the outer side of the bevel gear 4.

[0012] Preferably, the fertilization assembly includes a liquid storage tank fixedly connected to the outside of the placement box, a pump body is installed on the top of the liquid storage tank, the output end of the pump body is fixedly connected to a first connecting pipe, and the input end of the pump body is fixedly connected to a second connecting pipe. The fertilization assembly is controlled by a fertilization system.

[0013] Preferably, two hydraulic cylinders are installed on one side of the top of the frame, and the output ends of the hydraulic cylinders are fixedly connected to the covering plates.

[0014] A multi-row hole-drilling method for yam planting comprises the following steps: Preparation for drilling operation: Start the motor inside the connecting plate, which drives the drive gear to rotate. By engaging with the drive rack, the spacing between the auger rods can be adjusted to meet the requirements of different yam varieties and row spacing; Auger rod operation: The connecting sleeve moves along the spline shaft under the action of the connecting bar, and the bearing sleeve moves along the fixed rod to provide support. The drive motor starts, driving the spline shaft and bevel gear to rotate, thereby driving multiple auger rods to rotate; Implementation of drilling operation: Start the top output end of the dual-axis motor to drive the drive screw to rotate, and the threaded plate moves up and down along the guide rod, driving the auger rod to move downward to complete multiple drilling operations; Sowing operation: After the holes are drilled, the bottom output end of the dual-shaft motor is started, driving bevel gears 3 and 4 to rotate, and the transmission shaft and connecting shaft rotate in turn, discharging the seed potatoes into the holes through the discharge barrel; Fertilization and backfilling: The fertilization system applies fertilizer in a quantitative manner based on demand to avoid waste. After fertilization, the frame moves to the backfilling position, and the hydraulic cylinder drives the backfilling plate downward to complete the backfilling.

[0015] The present invention provides a multi-row hole-drilling device and a hole-drilling method for yam cultivation, which has the following beneficial effects: 1. By providing multiple auger rods, the present invention can complete multiple hole drilling operations at a time, greatly improving drilling efficiency and saving time and labor costs in yam planting. The device can also flexibly adjust the spacing of the auger rods to meet the planting needs and row spacing requirements of different yam varieties, ensuring the rationality and scientific nature of yam planting, promoting better growth and development of yam, and enhancing the versatility and applicability of the device.

[0016] 2. By integrating drilling, sowing, fertilizing, and covering functions, the present invention achieves an integrated yam cultivation operation, significantly improving planting efficiency and reducing manual intervention and labor intensity. The device's fertilization system can accurately and quantitatively apply fertilizer according to the actual needs of the yam, avoiding fertilizer waste, reducing production costs, and ensuring the nutrient supply for yam growth. The device is easy to operate and has strong adaptability, making it widely applicable to large-scale yam cultivation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic structural diagram of the liquid storage tank of the present invention; Figure 3 It is a schematic diagram of the cover plate structure of the present invention; Figure 4 It is a schematic diagram of the structure of the connecting plate of the present invention; Figure 5 for Figure 1 Enlarged view of point A in the middle; Figure 6 for Figure 3 Enlarged view of point B in the middle; Figure 7 is a cross-sectional view of the connecting sleeve of the present invention; Figure 8 It is a cross-sectional view of a placement box of the present invention.

[0018] Among them, 1. frame; 2. mounting frame; 3. placement box; 401. liquid storage tank; 402. first connecting pipe; 403. pump body; 404. second connecting pipe; 501. driving screw; 502. guide rod; 503. threaded plate; 504. dual-axis motor; 601. connecting plate; 602. connecting sleeve; 603. spline shaft; 604. auger rod; 605. driving motor; 606. driving gear; 607. driving rack; 608. connecting strip; 609. bevel gear one; 610. bevel gear two; 611. spline sleeve; 7. fixing rod; 8. load-bearing sliding sleeve; 901. hydraulic cylinder; 902. covering plate; 10. bevel gear three; 11. transmission shaft; 12. bevel gear four; 13. synchronous wheel one; 14. synchronous wheel two; 15. unloading barrel; 16. connecting shaft; 17. rotating plate. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Please see the attached Figure 1 -Attached Figure 8 The embodiment of the present invention provides a multi-row hole drilling device for yam planting, comprising a frame 1, a mounting frame 2 fixedly connected to one side of the top of the frame 1, a connecting plate 601 installed on the outer side of the mounting frame 2 through a lifting assembly, two driving racks 607 slidably connected to the inner side of the connecting plate 601, a driving gear 606 movably connected to the inner side of the connecting plate 601 through a bearing, a connecting sleeve 602 connected to the outer side of the driving rack 607 through a connecting bar 608, and a spline sleeve 611 rotatably installed on the inner side of the connecting sleeve 602. The outside of the spline sleeve 611 is fixedly connected to bevel gear 1 609. The inner lower side of the connecting sleeve 602 is movably connected to bevel gear 2 610 via a bearing. The lower surface of the connecting sleeve 602 is mounted with an auger rod 604. The top of the auger rod 604 is fixedly connected to the outside of bevel gear 2 610. The outside of the mounting frame 2 is mounted with a drive motor 605. The output end of the drive motor 605 is fixedly connected to the spline shaft 603. The placement box 3 is mounted on the top middle side of the frame 1. The fertilizer assembly is mounted on the outside of the placement box 3. The outside of the mounting frame 2 is fixedly connected to a fixed rod 7. The outer surface of the fixed rod 7 is slidably connected to multiple bearing sleeves 8. The bearing sleeves 8 are fixedly connected to the outer surface of the connecting sleeve 602.

[0021] Specifically, the mounting frame 2 is fixed to the frame 1 and is used to install and support the connecting plate 601. The lifting assembly is installed on the mounting frame 2 and is used to adjust the height of the connecting plate 601, thereby adjusting the depth of the auger rod 604 into the soil to adapt to the planting depth requirements of different yam varieties. The drive gear 606 is engaged with the drive rack 607. When the motor drives the drive gear 606 to rotate, the drive rack 607 will move away from or closer to each other along the outer surface of the connecting plate 601, thereby adjusting the spacing of the auger rods 604. The drive rack 607 is engaged with the drive gear 606, and through interaction, the spacing of the auger rods 604 is adjusted to adapt to different yam varieties and row spacing requirements. The auger rod 604 is used to drill holes in the soil. Its rotation and up and down movement are controlled by the above-mentioned transmission system to achieve efficient drilling operations. The storage box 3 is used to store yam seed potatoes to provide seeds for sowing operations.

[0022] Start the motor on the inside of the connecting plate 601, and the output end of the motor drives the driving gear 606 to rotate synchronously. The driving gear 606 is engaged with the driving rack 607, so that the driving rack 607 moves away from or close to each other along the outer surface of the connecting plate 601, thereby adjusting the spacing of the auger rods 604. Then, the connecting sleeve 602 moves along the outer surface of the spline shaft 603 under the transmission action of the connecting bar 608, and at the same time, the supporting sliding sleeve 8 moves along the outer surface of the fixed rod 7 to provide auxiliary support for the connecting sleeve 602. Next, start the driving motor 605 to drive the spline shaft 603 to rotate, and then drive the bevel gear 1 609 to rotate coaxially. The bevel gear 1 609 is engaged with the bevel gear 2 610 engaged with it, driving multiple auger rods 604 to rotate, completing the hole-making operation. The whole process realizes efficient hole-making for yam planting, and can flexibly adjust the spacing of the auger rods 604 according to planting needs, with good versatility and applicability.

[0023] A motor is installed on the inner side of the connecting plate 601, and the output end of the motor is fixedly connected to the outer side of the driving gear 606. The outer sides of the two driving racks 607 are meshed with the outer sides of the driving gear 606. The spline sleeve 611 is sleeved on the outside of the spline shaft 603, and the spline sleeve 611 and the spline shaft 603 are clearance-fitted. The outer side of the bevel gear 1 609 is meshed with the outer side of the bevel gear 2 610.

[0024] Specifically, the two drive racks 607 are respectively located on both sides of the drive gear 606 and are tightly meshed with the outer tooth surface of the drive gear 606. When the drive gear 606 is driven by the motor to rotate, the two drive racks 607 will make a linear motion along the outer surface of the connecting plate 601 through the meshing relationship, and the two drive racks 607 will move away from or close to each other, thereby achieving the adjustment of the spacing between the spiral drill rods 604. The spline shaft 603 is a shaft with a spline structure on the outside, and the spline sleeve 611 is sleeved on the outside of it, and a clearance fit is adopted between the two. This matching method allows the spline sleeve 611 to slide freely on the spline shaft 603, while transmitting torque through the spline structure, ensuring that the spline shaft 603 can drive the spline sleeve 611 to rotate synchronously when it rotates.

[0025] The lifting assembly includes a dual-axis motor 504 installed at the bottom of the mounting frame 2. The top output end of the dual-axis motor 504 is fixedly connected to the driving screw 501. The outer side of the driving screw 501 is threadedly connected to the threaded plate 503. The internal front and rear through holes of the threaded plate 503 are slidably connected to the guide rod 502. The upper and lower ends of the guide rod 502 are fixedly connected to the inner side of the mounting frame 2, and the outer side of the threaded plate 503 is fixedly connected to the outer side of the connecting plate 601.

[0026] Specifically, the top output end of the dual-axis motor 504 is started to drive the drive screw 501 to rotate. Due to the threaded matching relationship between the drive screw 501 and the threaded plate 503, the threaded plate 503 will make linear motion up and down along its axial direction on the rotating drive screw 501. Under the guidance of the guide rod 502, the movement of the threaded plate 503 is more stable and precise. The threaded plate 503 is fixedly connected to the connecting plate 601, driving the connecting plate 601 and multiple spiral drill rods 604 to move downward, thereby completing multiple hole drilling operations at one time. This design greatly improves the hole drilling efficiency and saves time and labor costs in yam planting.

[0027] A storage box 3 is fixedly connected to the top center of the frame 1. A discharge barrel 15 is fixedly connected to the bottom of the storage box 3. A connecting shaft 16 is movably connected to the interior of the discharge barrel 15 via a bearing. Multiple rotating plates 17 are fixedly connected to the outer surface of the connecting shaft 16. The bottom output end of the dual-shaft motor 504 is fixedly connected to bevel gear 3 10. A drive shaft 11 is rotatably mounted on the bottom of the frame 1. One end of the drive shaft 11 is fixedly connected to bevel gear 4 12. The other end of the drive shaft 11 is fixedly connected to synchronous gear 13. The outer portion of synchronous gear 13 is connected to synchronous gear 2 14 via a belt drive. Synchronous gear 2 14 is fixedly connected to one end of the connecting shaft 16. The outer side of bevel gear 3 10 meshes with the outer side of bevel gear 4 12.

[0028] Specifically, the storage box 3 is used to store seed potatoes needed for mountain medicine cultivation, providing a source of seeds for subsequent sowing operations. The feed barrel 15 is a hollow cylindrical structure that guides the seed potatoes downward, ensuring that they can smoothly enter the soil cavity from the storage box 3. The rotating plates 17 are arranged radially. When the connecting shaft 16 rotates, the rotating plates 17 rotate accordingly, stirring and pushing the seed potatoes toward the outlet of the lower barrel 15, preventing blockage and ensuring smooth feeding.

[0029] After the drilling operation is completed, the bottom output end of the dual-axis motor 504 is started. The bottom output end of the dual-axis motor 504 drives the bevel gear three 10 to rotate synchronously, and the bevel gear three 10 engages with the bevel gear four 12, thereby driving the bevel gear four 12 to rotate synchronously. Bevel gear four 12 is fixed to one end of the transmission shaft 11, so the transmission shaft 11 starts to rotate. The other end of the transmission shaft 11 is fixed with a synchronous wheel 13, and the synchronous wheel 13 drives the synchronous wheel two 14 to rotate through a belt. The synchronous wheel two 14 is fixedly connected to one end of the connecting shaft 16, so the connecting shaft 16 rotates accordingly. During the rotation process, the rotating plate 17 on the connecting shaft 16 gradually pushes the seed potatoes inside the placement box 3 to the discharge port at the bottom of the discharge barrel 15, and accurately arranges them into the drilled holes to complete the sowing operation. This process realizes the automation and precision delivery of seed potatoes, improves planting efficiency, and reduces manual intervention.

[0030] The fertilization assembly includes a liquid storage tank 401 fixedly connected to the outside of the storage box 3. A pump body 403 is mounted on top of the liquid storage tank 401. The output end of the pump body 403 is fixedly connected to a first connecting pipe 402, and the input end of the pump body 403 is fixedly connected to a second connecting pipe 404. The fertilization assembly is controlled by the fertilization system. Two hydraulic cylinders 901 are mounted on one side of the top of the frame 1. The output ends of the hydraulic cylinders 901 are fixedly connected to the cover plate 902.

[0031] Specifically, during yam cultivation, after drilling and seeding are complete, the fertilization system activates. Pump 403 draws fertilizer solution from reservoir 401 and delivers it to the yam planting area via first connecting pipe 402, achieving precise fertilization. Once fertilization is complete, hydraulic cylinder 901 activates, and its output end drives cover plate 902 downward. Cover plate 902 pushes the soil back into the hole, covering the seeds and completing the covering operation.

[0032] The fertilization system includes: A fertilizer storage module is used to store solid fertilizer and provide a fertilizer source for fertilization operations; The fertilization execution module evenly delivers the fertilizer liquid to the yam planting area; Specifically, the fertilization execution module is the key component of the yam planting system responsible for fertilizer application. It consists of a pump 403, a piping system, and a nozzle. Pump 403 draws fertilizer from a reservoir 401 and delivers it to the yam planting area via a piping system. The nozzle then evenly sprays the fertilizer around the yam seeds. This module ensures precise fertilizer application, avoiding fertilizer waste and ensuring that each yam plant receives an adequate supply of nutrients.

[0033] The control module is used to calculate and issue instructions based on the preset fertilization strategy to accurately regulate the actions of each module.

[0034] Specifically, the control module includes core components such as a microprocessor, a sensor interface, and a control algorithm. It calculates and makes decisions based on pre-set fertilization strategies, such as fertilizer amount, time, and frequency, and by using sensors to monitor soil nutrients, moisture, and yam growth conditions in real time. Based on this data, the control module precisely controls the actions of the fertilization execution module through electronic signals, including starting and stopping the pump 403, adjusting the flow rate, and opening and closing the nozzles. This ensures precise control of the fertilization process, ensuring a scientific and rational supply of nutrients to the yam throughout its entire growth cycle.

[0035] The core steps include soil nutrient monitoring and fertilizer adjustment algorithms, which are as follows: Sensors are used to collect data on the nitrogen, phosphorus, potassium and other nutrient contents in the soil, as well as soil moisture, temperature and other data in real time.

[0036] A nutrient requirement model was established based on the nutrient requirements of yam at different growth stages. For example, the proportions and total amounts of nitrogen, phosphorus, and potassium required by yam vary during the seedling, tuber expansion, and maturity stages.

[0037] Real-time soil nutrient data is compared with the preset target nutrient content, and the required amount of fertilizer is calculated based on the nutrient demand model. Based on the real-time monitoring error of soil nutrients, the fertilizer application rate is dynamically adjusted to ensure that the soil nutrient content reaches the target value quickly and accurately.

[0038] The formula used is as follows: ; in: Indicates the adjustment value of fertilizer amount; 、 are proportional, integral, and differential control parameters respectively; is the real-time monitoring error of soil nutrients, that is, the difference between the target nutrient content and the real-time monitoring value.

[0039] A multi-row hole drilling method for yam planting comprises the following detailed steps: Preparation for drilling: Start the motor inside the adapter plate 601. The motor output drives the drive gear 606 to rotate synchronously. The drive gear 606 engages with two drive racks 607, causing the drive racks 607 to move away from or closer to each other along the outer surface of the adapter plate 601. This adjusts the spacing of the auger rods 604 to meet the planting needs and row spacing requirements of different yam varieties, enhancing the versatility and applicability of the equipment.

[0040] Auger operation: Connecting sleeve 602 moves along the outer surface of spline shaft 603, driven by connecting bar 608. Simultaneously, bearing sleeve 8 moves along the outer surface of fixed rod 7, providing auxiliary support for connecting sleeve 602. Activating drive motor 605 rotates spline shaft 603, which in turn drives coaxial rotation of bevel gear 1 609. Bevel gear 1 609 meshes with its meshing bevel gear 2 610, driving the rotation of the multiple auger rods 604.

[0041] The drilling process begins by activating the top output of the dual-axis motor 504, which drives the drive screw 501. The threaded plate 503 moves up and down along the outer surface of the guide rod 502, thereby driving the connecting plate 601 and multiple auger rods 604 downward. This allows multiple holes to be drilled simultaneously, significantly improving drilling efficiency and saving time and labor costs in yam cultivation.

[0042] After drilling, the bottom output of the dual-shaft motor 504 is activated, driving bevel gear 3 10 to rotate synchronously, which in turn drives meshing bevel gear 4 12, further driving transmission shaft 11. Driven by synchronous gears 13 and 14, connecting shaft 16 rotates, discharging the seed potatoes from storage box 3 through the bottom discharge port of discharge barrel 15, placing them precisely into the holes.

[0043] Fertilization and Covering: The fertilization system then delivers quantitative fertilizer, precisely tailored to the yam's needs, avoiding fertilizer waste and reducing production costs. After fertilization is complete, frame 1 is moved to the covering position, and hydraulic cylinder 901 is activated to drive covering plate 902 downward, backfilling the hole with soil, completing the covering operation. By integrating drilling, seeding, fertilizing, and covering functions, the integrated yam cultivation process is achieved, significantly improving planting efficiency and reducing manual intervention and labor intensity.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-row hole punching device for yam planting, comprising a frame (1), characterized in that: The top side of the frame (1) is fixedly connected to a mounting frame (2), the outer side of the mounting frame (2) is installed with a connecting plate (601) via a lifting assembly, the inner side of the connecting plate (601) is slidably connected to two driving racks (607), the inner side of the connecting plate (601) is movably connected to a driving gear (606) via a bearing, the outer side of the driving rack (607) is connected to a connecting sleeve (602) via a connecting strip (608), the inner side of the connecting sleeve (602) is rotatably installed with a spline sleeve (611), and the outer side of the spline sleeve (611) is fixedly connected to a cone Gear 1 (609), the inner lower side of the connecting sleeve (602) is movably connected to bevel gear 2 (610) through a bearing, a spiral drill rod (604) is installed on the lower surface of the connecting sleeve (602), the top of the spiral drill rod (604) is fixedly connected to the outer side of bevel gear 2 (610), a driving motor (605) is installed on the outer side of the mounting frame (2), the output end of the driving motor (605) is fixedly connected to a spline shaft (603), a placement box (3) is installed on the top middle side of the frame (1), and a fertilizer assembly is installed on the outer side of the placement box (3).

2. The multi-row hole punching device for yam planting according to claim 1, characterized in that: A motor is installed on the inner side of the connecting plate (601), and the output end of the motor is fixedly connected to the outer side of the driving gear (606). The outer sides of the two driving racks (607) are meshed with the outer side of the driving gear (606). The spline sleeve (611) is sleeved on the outside of the spline shaft (603), and the spline sleeve (611) and the spline shaft (603) are clearance-matched. The outer side of the bevel gear 1 (609) is meshed with the outer side of the bevel gear 2 (610).

3. The multi-row hole punching device for yam planting according to claim 1, characterized in that: The outer side of the mounting frame (2) is fixedly connected to a fixing rod (7), the outer surface of the fixing rod (7) is slidably connected to a plurality of bearing sleeves (8), and the bearing sleeves (8) are fixedly connected to the outer surface of the connecting sleeve (602).

4. The multi-row hole punching device for yam planting according to claim 1, characterized in that: The lifting assembly comprises a dual-axis motor (504) mounted at the bottom of the mounting frame (2), the top output end of the dual-axis motor (504) is fixedly connected to a driving screw (501), the outer side of the driving screw (501) is threadedly connected to a threaded plate (503), the inner front and rear through holes of the threaded plate (503) are slidably connected to guide rods (502), the upper and lower ends of the guide rods (502) are fixedly connected to the inner side of the mounting frame (2), and the outer side of the threaded plate (503) is fixedly connected to the outer side of the connecting plate (601).

5. The multi-row hole punching device for yam planting according to claim 1, characterized in that: A placement box (3) is fixedly connected to the middle side of the top of the frame (1), a discharge barrel (15) is fixedly connected to the bottom of the placement box (3), a connecting shaft (16) is movably connected to the interior of the discharge barrel (15) via a bearing, and a plurality of rotating plates (17) are fixedly connected to the outer surface of the connecting shaft (16).

6. The multi-row hole punching device for yam planting according to claim 4, characterized in that: The bottom output end of the dual-axis motor (504) is fixedly connected to a bevel gear three (10), the bottom of the frame (1) is rotatably mounted with a transmission shaft (11), one end of the transmission shaft (11) is fixedly connected to a bevel gear four (12), the other end of the transmission shaft (11) is fixedly connected to a synchronous wheel one (13), and the outside of the synchronous wheel one (13) is connected to a synchronous wheel two (14) via a belt drive.

7. The multi-row hole punching device for yam planting according to claim 6, characterized in that: The synchronous wheel 2 (14) is fixedly connected to one end of the connecting shaft (16), and the outer side of the bevel gear 3 (10) is meshedly connected with the outer side of the bevel gear 4 (12).

8. The multi-row hole punching device for yam planting according to claim 1, characterized in that: The fertilization assembly comprises a liquid storage tank (401) fixedly connected to the outside of the placement box (3); a pump body (403) is installed on the top of the liquid storage tank (401); the output end of the pump body (403) is fixedly connected to a first connecting pipe (402); the input end of the pump body (403) is fixedly connected to a second connecting pipe (404); and the fertilization assembly is controlled by a fertilization system.

9. The multi-row hole punching device for yam planting according to claim 8, characterized in that: Two hydraulic cylinders (901) are installed on one side of the top of the frame (1), and the output ends of the hydraulic cylinders (901) are fixedly connected to a covering plate (902).

10. A multi-row hole punching method for yam planting, according to the multi-row hole punching device for yam planting according to any one of claims 1 to 9, characterized in that: The following steps are involved: Preparation for drilling operation: Start the motor inside the connecting plate (601), the motor drives the driving gear (606) to rotate, and through engagement with the driving rack (607), adjust the spacing of the spiral drill rod (604) to adapt to different yam varieties and row spacing requirements; Operation of the spiral drill rod: The connecting sleeve (602) moves along the spline shaft (603) under the action of the connecting bar (608), and the bearing sleeve (8) moves along the fixed rod (7) to provide support. The driving motor (605) is started, driving the spline shaft (603) and the bevel gear (609) to rotate, thereby driving the multiple spiral drill rods (604) to rotate; The drilling operation is implemented by starting the top output end of the dual-axis motor (504), driving the driving screw (501) to rotate, and the threaded plate (503) moves up and down along the guide rod (502), driving the auger rod (604) to move downward, completing multiple drilling operations; After the hole is drilled, the bottom output end of the dual-axis motor (504) is started to drive the bevel gear 3 (10) and the bevel gear 4 (12) to rotate, and the transmission shaft (11) and the connecting shaft (16) rotate in turn to discharge the seed potatoes into the hole through the discharge barrel (15); Fertilization and covering operations: The fertilization system applies fertilizer in a quantitative manner according to demand to avoid waste. After fertilization, the frame (1) is moved to the covering position, and the hydraulic cylinder (901) drives the covering plate (902) to move downward to complete the soil backfill.

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