A root cutting water jet drill for wild-simulated licorice harvesting
By using the adaptive weight adjustment system of the root-cutting water jet drill, the problems of high root damage rate and low harvesting efficiency in the harvesting of simulated wild licorice have been solved, achieving efficient cutting and protection of root integrity under different soil conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA AGRICULTURAL UNIVERSITY
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-09
AI Technical Summary
Existing technologies for harvesting simulated wild licorice result in high root damage rates and low harvesting efficiency, and are difficult to adapt to the needs of large-scale planting. Traditional equipment also has poor cutting efficiency and root protection effects under different soil conditions.
A root-cutting water jet drill was designed, employing a counterweight adaptive adjustment system. Through the cooperation of counterweight blocks, telescopic rods, sliders, and springs, the downward pressure is automatically adjusted. Combined with high-pressure water flow and mechanical drilling, it achieves adaptive cutting for different soil conditions. The counterweight blocks are detachable and replaceable to adapt to different growth conditions.
It significantly reduced the root damage rate of simulated wild licorice, improved harvesting quality and efficiency, and enhanced the applicability and cutting effect of the device.
Smart Images
Figure CN224329969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a water jet drill for harvesting simulated wild licorice. Background Technology
[0002] As an important medicinal plant, semi-wild licorice has a well-developed and widely distributed root system. Traditional harvesting methods, such as manual digging or mechanical plowing, easily lead to high root damage rates and low harvesting efficiency, and are difficult to adapt to the needs of large-scale planting. The root-cutting water jet drill is a special harvesting equipment developed for the characteristics of semi-wild licorice roots. Its core structure includes a high-pressure water jet generator, an adjustable-angle drill-shaped cutting head, and a matching power transmission system. Through the synergistic effect of high-pressure water flow and mechanical drilling, it can accurately cut and separate deep licorice roots, which has the advantages of reducing root damage rate, improving harvesting efficiency, and reducing soil disturbance.
[0003] In the harvesting of semi-wild licorice, existing technologies typically use traditional agricultural machinery or manual assistance to cut the roots. Traditional equipment often uses a fixed-structure cutting blade with constant power output to achieve harvesting. For example, a motor drives the cutting blade to rotate, while a mechanical arm or manual application of fixed downward pressure causes the blade to cut into the soil to separate the licorice roots.
[0004] In the aforementioned prior art, when the cutting blade encounters hard soil, the fixed downward pressure can cause a sudden increase in cutting resistance, which not only accelerates blade wear and reduces harvesting efficiency but may also result in broken and residual licorice roots due to ineffective soil penetration. Conversely, when encountering soft soil, the fixed downward pressure can easily cause the blade to over-cut into the soil, damaging the integrity of the licorice root system and even harming nearby immature plants. Therefore, a water jet drill specifically designed for harvesting simulated wild licorice is proposed to address these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a water jet drill for harvesting simulated wild licorice, which aims to improve the problems of high root damage rate and low harvesting efficiency in the existing technology for harvesting simulated wild licorice.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a water jet drill for harvesting wild-simulated licorice, comprising a fixed rod, a cutting arm shaft being movably connected to the bottom end of the fixed rod, a cutting blade being fixedly connected to the surface of the cutting arm shaft, and a counterweight adaptive adjustment being provided on the fixed rod.
[0007] The adaptive counterweight adjustment includes a connecting plate, the side of which is fixedly connected to the surface of a fixed rod. A telescopic rod is hinged to the inner side of the connecting plate. A slider is hinged to one end of the telescopic rod, and the side of the slider contacts the surface of the cutting arm shaft. A sliding hole is provided on the surface of the fixed rod. A counterweight is provided at the other end of the telescopic rod. A spring is fixedly connected to the inner wall of the fixed rod. A moving plate is fixedly connected to the bottom end of the spring. The top end of the cutting arm shaft is rotatably connected to the bottom of the moving plate. A disassembly assembly is provided between the telescopic end of the telescopic rod and the counterweight.
[0008] As a further description of the above technical solution: the disassembly assembly includes a stud, one end of which is fixedly connected to the other end of the telescopic rod, and the outer wall of the counterweight is provided with a threaded groove, and the surface of the stud is threadedly connected to the threaded groove of the counterweight.
[0009] As a further description of the above technical solution: a drive rotation assembly is provided on the fixed rod, the drive rotation assembly includes a motor, the motor is fixedly installed on the outer wall of the fixed rod, the output shaft of the motor is fixedly connected to a drive gear, the outer wall of the fixed rod is provided with an opening, the surface of the cutting arm shaft is fixedly connected with teeth, and the drive gear meshes with the side adjacent to the teeth.
[0010] As a further description of the above technical solution: the surface of the cutting arm shaft is provided with an annular groove, and the side of the slider is fixedly connected with a ball, and the side of the slider is slidably connected to the inner wall of the annular groove through the ball.
[0011] As a further description of the above technical solution: the surface of the fixing rod is fixedly connected to a frame, the inner wall of the frame is fixedly connected to a water spray pipe, the top end of the water spray pipe is a water inlet end, the top end of the water spray pipe is fixedly connected to a water inlet pipe, and the end of the water inlet pipe is fixedly penetrated through the inner side of the frame and extends outward.
[0012] As a further description of the above technical solution: the teeth are longer than the length of the driving gear.
[0013] As a further description of the above technical solution: the surface of the cutting blade is provided with serrated grooves.
[0014] As a further description of the above technical solution: the sliding hole is strip-shaped, and the outer wall of the slider is slidably connected to the inner wall of the sliding hole.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, by setting an adaptive counterweight adjustment, the downward pressure can be automatically adjusted according to the soil hardness by using the cooperation between the counterweight block, telescopic rod, slider and spring. While ensuring cutting efficiency, it significantly reduces the damage rate to the root system of simulated wild licorice and improves the harvest quality.
[0017] 2. In this utility model, the disassembly component allows for easy replacement of counterweights of different sizes by using studs and threaded grooves. The counterweight torque can be flexibly adjusted according to different soil conditions and licorice growth status. In harder soil, using heavier counterweights increases the cutting arm's penetration torque and improves cutting efficiency. In softer soil, using lighter counterweights reduces downward pressure and avoids excessive cutting that could damage the licorice roots, thereby significantly improving the applicability of the device and the quality of harvest. Attached Figure Description
[0018] Figure 1 This is a front view of a water jet drill for harvesting simulated wild licorice, as proposed in this utility model.
[0019] Figure 2 This is a cross-sectional schematic diagram of the fixing rod of a water jet drill for harvesting simulated wild licorice, as proposed in this utility model.
[0020] Figure 3 This is a schematic diagram of the separation structure of the counterweight and stud in the disassembly assembly of a water jet drill for harvesting wild licorice, as proposed in this utility model.
[0021] Legend:
[0022] 1. Fixed rod; 2. Frame; 3. Water inlet pipe; 4. Cutting arm shaft; 5. Cutting blade; 6. Water spray pipe; 7. Sliding hole; 8. Spring; 9. Moving plate; 10. Annular groove; 11. Sliding block; 12. Ball bearing; 13. Counterweight; 14. Connecting plate; 15. Telescopic rod; 16. Stud; 17. Threaded groove; 18. Drive gear; 19. Motor. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figure 1This utility model provides an embodiment of a water jet drill for harvesting simulated wild licorice, comprising a fixed rod 1, with a cutting arm shaft 4 movably connected to the bottom end of the fixed rod 1. A cutting blade 5 is fixedly connected to the surface of the cutting arm shaft 4. The cutting blade 5 is rotated to cut and separate the roots of simulated wild licorice. The surface of the cutting blade 5 is provided with serrated grooves to increase the friction between the cutting blade 5 and the licorice roots, thereby improving cutting efficiency and effect. The fixed rod 1 is equipped with a counterweight adaptive adjustment, which automatically adjusts the counterweight torque according to the soil resistance to ensure the stability of the cutting process and avoid damage to the root system.
[0025] Reference Figure 1 , Figure 2 The counterweight adaptive adjustment includes a connecting plate 14, the side of which is fixedly connected to the surface of the fixed rod 1. A telescopic rod 15 is hinged to the inner side of the connecting plate 14. The telescopic rod 15 can rotate around the connecting plate 14 through the hinge structure, and the counterweight adjustment is achieved by cooperating with the movement of the cutting arm shaft 4. A slider 11 is hinged to one end of the telescopic rod 15. The slider 11 can swing with the telescopic rod 15 through the hinge connection. The side of the slider 11 is in contact with the surface of the cutting arm shaft 4. An annular groove 10 is opened on the surface of the cutting arm shaft 4. A ball bearing 1 is fixedly connected to the side of the slider 11. 2. By rolling contact between the ball bearing 12 and the annular groove 10, the frictional resistance of the slider 11 during movement is reduced. The side of the slider 11 is slidably connected to the inner wall of the annular groove 10 through the ball bearing 12, using rolling friction to replace sliding friction. The surface of the fixed rod 1 is provided with a sliding hole 7, which is strip-shaped and provides a guide channel for the slider 11 to slide up and down, restricting the slider 11 to move only along the axial direction of the fixed rod 1. The outer wall of the slider 11 is slidably connected to the inner wall of the sliding hole 7. Through the cooperation between the sliding hole 7 and the slider 11, the movement direction of the slider 11 is ensured to be accurate and shaking is avoided.
[0026] Reference Figure 2 The other end of the telescopic rod 15 is equipped with a counterweight 13. The weight of the counterweight 13 generates torque to assist the cutting arm shaft 4 in cutting into the soil or reduce the downward pressure. A spring 8 is fixedly connected to the inner wall of the fixed rod 1. The elastic force of the spring 8 realizes the reset of the cutting arm shaft 4 and buffers the impact of changes in cutting resistance. A movable plate 9 is fixedly connected to the bottom end of the spring 8, which transmits the elastic force of the spring 8 to the top of the cutting arm shaft 4, causing the cutting arm shaft 4 to move up and down. The top of the cutting arm shaft 4 is rotatably connected to the bottom of the movable plate 9, so that the cutting arm shaft 4 can rotate freely while moving up and down without affecting the cutting action. A disassembly assembly is provided between the telescopic end of the telescopic rod 15 and the counterweight 13.
[0027] Reference Figure 3The disassembly assembly includes a stud 16, one end of which is fixedly connected to the other end of the telescopic rod 15 to ensure a firm connection between the stud 16 and the telescopic rod 15, transmitting the gravitational torque of the counterweight 13. The outer wall of the counterweight 13 has a threaded groove 17, which cooperates with the stud 16 to form a threaded connection, facilitating the installation and disassembly of the counterweight 13. The surface of the stud 16 is threadedly connected to the threaded groove 17 of the counterweight 13, achieving stable installation and quick replacement of the counterweight 13 through the threaded connection.
[0028] Reference Figure 1 , Figure 2 A drive rotation assembly is provided on the fixed rod 1. The drive rotation assembly includes a motor 19, which is fixedly installed on the outer wall of the fixed rod 1. The output shaft of the motor 19 is fixedly connected to a drive gear 18. The outer wall of the fixed rod 1 is open to provide space for the drive gear 18 to mesh with the teeth of the cutting arm shaft 4, ensuring smooth transmission. Teeth are fixedly connected to the surface of the cutting arm shaft 4. The drive gear 18 meshes with the side adjacent to the teeth. The teeth are longer than the length of the drive gear 18 to ensure that the drive gear 18 and the teeth always remain in mesh, avoiding tooth disengagement during transmission.
[0029] Reference Figure 1 A frame 2 is fixedly connected to the surface of the fixed rod 1. A water spray pipe 6 is fixedly connected to the inner wall of the frame 2. Water is sprayed onto the cutting area through the water spray pipe 6 to moisten the soil and assist in cutting and dust reduction. The top of the water spray pipe 6 is the water inlet end. A water inlet pipe 3 is fixedly connected to the top of the water spray pipe 6. The end of the water inlet pipe 3 is fixedly connected through the inner side of the frame 2 and extends outward to facilitate connection with an external water source. At the same time, the position of the water inlet pipe 3 is fixed to prevent shaking.
[0030] Working principle: First, connect the end of the water inlet pipe 3 to a suitable water source to ensure a stable water supply and pressure that meets the device requirements. At the same time, check whether the water spray pipe 6 is unobstructed to avoid blockage during operation. Based on the actual soil conditions and licorice growth, select a counterweight block 13 of appropriate weight and install it on the telescopic end of the telescopic rod 15 through the cooperation of the stud 16 and the threaded groove 17. Turn on the power switch of the motor 19, and the output shaft of the motor 19 will start to drive the drive gear 18 to rotate. Since the drive gear 18 meshes with the teeth on the surface of the cutting arm shaft 4, the rotation of the drive gear 18 will drive the cutting arm shaft 4 to rotate. At this time, the cutting blade 5 rotates together with the cutting arm shaft 4, preparing for cutting the simulated wild licorice. Move the device to the simulated wild licorice area to be harvested, and align the cutting blade 5 with the licorice root. During the cutting process, the water spray pipe 6 obtains water from the water source through the water inlet pipe 3 and sprays the water onto the cutting area to moisten the soil and assist in cutting.
[0031] When the cutting blade 5 at the bottom of the cutting arm encounters hard soil, the cutting resistance increases. At this time, the cutting arm pivot 4 will move upward on the inner wall of the fixed rod 1, while squeezing the internal spring 8. The slider 11 will move together with the cutting arm pivot 4. Since the slider 11 is hinged to the telescopic rod 15, the movement of the slider 11 will drive the telescopic rod 15 to rotate around the hinge of the connecting plate 14. According to the lever principle, the telescopic end of the telescopic rod 15 will drive the counterweight 13 to tilt forward, thereby increasing the torque of the cutting arm entering the soil, so that the cutting blade 5 can cut into the hard soil more powerfully and continue the cutting work.
[0032] When the cutting blade 5 encounters soft soil, the cutting resistance decreases, the spring 8 returns to its original position, pushing the cutting arm pivot 4 downwards. The slider 11 also moves accordingly, causing the telescopic rod 15 to rotate, which retracts the counterweight 13, reducing the downward pressure on the cutting arm and preventing the cutting blade 5 from excessively cutting into the soil and damaging the licorice roots. After completing the cutting of one licorice, the device is moved to the next location that needs to be cut, and the above cutting and adaptive counterweight adjustment process is repeated until the licorice harvesting work in the entire area is completed.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A water jet drill for harvesting simulated wild licorice, comprising a fixing rod (1), characterized in that: The bottom end of the fixed rod (1) is movably connected to the cutting arm shaft (4), and the surface of the cutting arm shaft (4) is fixedly connected to the cutting blade (5). The fixed rod (1) is provided with a counterweight adaptive adjustment. The adaptive counterweight adjustment includes a connecting plate (14), the side of which is fixedly connected to the surface of the fixed rod (1), a telescopic rod (15) is hinged to the inner side of the connecting plate (14), a slider (11) is hinged to one end of the telescopic rod (15), the side of the slider (11) is in contact with the surface of the cutting arm shaft (4), a sliding hole (7) is provided on the surface of the fixed rod (1), a counterweight block (13) is provided at the other end of the telescopic rod (15), a spring (8) is fixedly connected to the inner wall of the fixed rod (1), a moving plate (9) is fixedly connected to the bottom end of the spring (8), the top end of the cutting arm shaft (4) is rotatably connected to the bottom of the moving plate (9), and a disassembly assembly is provided between the telescopic end of the telescopic rod (15) and the counterweight block (13).
2. The water jet drill for harvesting simulated wild licorice as described in claim 1, characterized in that: The disassembly assembly includes a stud (16), one end of which is fixedly connected to the other end of the telescopic rod (15). The outer wall of the counterweight (13) is provided with a threaded groove (17), and the surface of the stud (16) is threadedly connected to the threaded groove (17) of the counterweight (13).
3. The water jet drill for harvesting simulated wild licorice as described in claim 1, characterized in that: A drive rotation assembly is provided on the fixed rod (1). The drive rotation assembly includes a motor (19). The motor (19) is fixedly installed on the outer wall of the fixed rod (1). The output shaft of the motor (19) is fixedly connected to a drive gear (18). The outer wall of the fixed rod (1) is open. The surface of the cutting arm shaft (4) is fixedly connected with teeth. The drive gear (18) meshes with the side adjacent to the teeth.
4. A water jet drill for harvesting simulated wild licorice as described in claim 1, characterized in that: The surface of the cutting arm shaft (4) is provided with an annular groove (10), and a ball (12) is fixedly connected to the side of the slider (11). The side of the slider (11) is slidably connected to the inner wall of the annular groove (10) through the ball (12).
5. A water jet drill for harvesting simulated wild licorice as described in claim 1, characterized in that: A frame (2) is fixedly connected to the surface of the fixed rod (1). A water spray pipe (6) is fixedly connected to the inner wall of the frame (2). The top end of the water spray pipe (6) is the water inlet end. A water inlet pipe (3) is fixedly connected to the top end of the water spray pipe (6). The end of the water inlet pipe (3) is fixedly connected through the inner side of the frame (2) and extends outward.
6. A water jet drill for harvesting simulated wild licorice as described in claim 3, characterized in that: The teeth are longer than the length of the drive gear (18).
7. A water jet drill for harvesting simulated wild licorice as described in claim 1, characterized in that: The surface of the cutting blade (5) has serrated grooves.
8. A water jet drill for harvesting simulated wild licorice as described in claim 1, characterized in that: The sliding hole (7) is strip-shaped, and the outer wall of the slider (11) is slidably connected to the inner wall of the sliding hole (7).