Regulating rhizome medicinal material harvesting device

Abstract

The application discloses a kind of adjustable rhizome medicinal materials harvesting device, belong to agricultural machinery technical field, including self-propelled vehicle body;Angle adjusting mechanism is installed in the rear of self-propelled vehicle body;Spacing adjustable type harvesting mechanism is installed on angle adjusting mechanism, the spacing adjustable type harvesting mechanism includes the digging component for digging rhizome medicinal materials, the horizontal adjusting component for adjusting the spacing of digging component and the second hydraulic telescopic rod for controlling the lifting of digging component, horizontal adjusting component is connected with angle adjusting mechanism, the second hydraulic telescopic rod top is connected with horizontal adjusting component, the second hydraulic telescopic rod below is connected with digging component. Through the above mode, the effect of adapting according to the planting row spacing of different rhizome medicinal materials, plant type thickness, root system distribution width is played, to prevent the problems such as digging deviation, cutting root, scratching medicinal materials and missing digging plant, not only improve the quality of rhizome medicinal materials harvesting product, also improve the harvesting efficiency of rhizome medicinal materials.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to an adjustable harvesting device for root and rhizome medicinal materials. Background Technology

[0002] The cultivation of rhizome medicinal herbs is an important part of traditional Chinese agriculture. In recent years, with the vigorous development of the traditional Chinese medicine industry and the continuous growth of market demand, the planting area of ​​rhizome medicinal herbs has been expanding. Rhizome medicinal herbs (such as astragalus, licorice, isatis root, ophiopogon, notoginseng, and alisma) are important categories of traditional Chinese medicinal herbs. However, the manual digging method for rhizome medicinal herbs is labor-intensive, inefficient, and costly, and often cannot be completed within the optimal harvest period. Existing harvesting equipment for rhizomes and tubers still has the following problems in practical applications: (1) Fixed-spacing harvesting equipment can only meet the harvesting needs of a single type. When facing root and rhizome medicinal materials with different row spacing, the digging operation area and the position of the medicinal plant cannot be accurately matched, resulting in problems such as digging off the right side, cutting the roots, scratching the medicinal materials, and missing the plants. For root and rhizome medicinal materials, their roots and stems are fragile and their leaves are easily damaged. Once digging off the right side or cutting the roots occurs, it will not only cause direct loss of the medicinal materials, but also affect the quality of the medicinal materials due to the rot caused by the damage. (2) The digging depth of existing harvesting equipment is mostly fixed or has a limited adjustment range. When the digging depth is too deep, the working resistance increases and the power loss is serious. When the digging depth is too shallow, the rate of missing digging is high and it is easy to cause damage to the medicinal materials. It is difficult to adjust the soil entry angle and opening and closing angle of the digging shovel according to the plant type characteristics of different root and rhizome medicinal materials. It is easy to scratch the stems and leaves of the medicinal materials or bring out a large amount of useless soil during the digging process. Based on this, the present invention designs an adjustable harvesting device for rhizomes and other medicinal materials to solve the above problems. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an adjustable harvesting device for rhizomes and other medicinal materials.

[0004] To achieve the above objectives, the present invention provides the following technical solution: An adjustable harvesting device for rhizomes and other medicinal herbs, comprising a self-propelled vehicle body; An angle adjustment mechanism is installed at the rear of the self-propelled vehicle body; The angle adjustment mechanism is equipped with a spacing adjustable harvesting mechanism. The spacing adjustable harvesting mechanism includes a digging component for digging up rhizomes, a horizontal adjustment component for adjusting the spacing between the digging components, and a second hydraulic telescopic rod for controlling the raising and lowering of the digging components. The horizontal adjustment component is connected to the angle adjustment mechanism, the upper part of the second hydraulic telescopic rod is connected to the horizontal adjustment component, and the lower part of the second hydraulic telescopic rod is connected to the digging component. The angle adjustment mechanism is equipped with an automatic screening mechanism for separating root and rhizome medicinal materials from the soil. The automatic screening mechanism is located behind the adjustable-spacing harvesting mechanism. Furthermore, a mobile frame is fixedly installed at the rear of the self-propelled vehicle body, a first support frame is fixedly installed on the top of the self-propelled vehicle body, a mobile wheel set is installed at the bottom of the self-propelled vehicle body, the upper part of the angle adjustment mechanism is connected to the first support frame, and the lower part of the angle adjustment mechanism is connected to the mobile frame near the mobile wheel set. Furthermore, the angle adjustment mechanism includes a rotating frame and a first hydraulic telescopic rod. The first hydraulic telescopic rod is rotatably connected to the central shaft surface fixedly mounted on the surface of the mobile frame. The upper part of the first hydraulic telescopic rod is hinged to the surface of the first support frame, and the lower part of the first hydraulic telescopic rod is hinged to the surface of the rotating frame. The horizontal adjustment component and the automatic screening mechanism are both connected to the rotating frame. Furthermore, the horizontal adjustment assembly includes a positive and negative threaded rod, a movable frame, a fixed frame fixedly connected to the rotating frame, a first drive motor, and a limiting rod. Several movable frames are symmetrical about the fixed frame and are all threadedly connected to the surface of the positive and negative threaded rod. One end of the positive and negative threaded rod is rotatably connected to the surface of the rotating frame. The output end of the first drive motor is fixedly connected to the other end of the positive and negative threaded rod. The movable frame is slidably connected to the limiting rod. Two sets of second hydraulic telescopic rods are hinged below the fixed frame and the movable frame. The excavation assembly is connected below the second hydraulic telescopic rod. Furthermore, the excavation assembly includes a central frame, a suspension frame, supports, and an excavation part. The suspension frame is fixedly installed above the central frame, and a plurality of supports are fixedly installed around the central frame. The excavation part is connected to the supports, and the lower part of the second hydraulic telescopic rod is hinged to the suspension frame. Furthermore, the excavating part includes a digging blade, a third hydraulic telescopic rod, a rib plate, and a pin. A rib plate is fixedly installed on the back of the digging blade. A pin is fixedly installed on one end of the rib plate near the support. The pin is rotatably connected inside the support. One end of the third hydraulic telescopic rod is hinged to the support at the position above the pin, and the other end is hinged to the middle position of the rib plate. Furthermore, the automatic screening mechanism includes a second support frame, a drive assembly, a stainless steel mesh conveying assembly for separating the soil from the root and rhizome medicinal materials, and a vibrating digging part for feeding the soil containing the root and rhizome medicinal materials into the stainless steel mesh conveying assembly. The second support frame is fixedly connected to the rotating frame, the drive assembly is connected to the second support frame, and the vibrating digging part is connected between the second support frame and the stainless steel mesh conveying assembly.

[0005] Furthermore, the drive assembly includes a second drive motor, a worm gear, a worm wheel, a second synchronous belt assembly, a transmission rod, and a third synchronous belt assembly. Several worm gears are rotatably connected to the surface of the second support frame. The second drive motor is fixedly mounted on the surface of the rotating frame. One end of the worm gear in the middle position is fixedly mounted on the output end of the second drive motor. A first synchronous belt assembly is installed between the remaining worm gears. Two sets of transmission rods are rotatably connected to the surface of the second support frame. The worm wheel is fixedly mounted on the surface of the upper transmission rod, and the worm gear meshes with the worm wheel. A second synchronous belt assembly is installed between the two sets of transmission rods. The stainless steel mesh conveying assembly is drively connected to the transmission rod.

[0006] Furthermore, the stainless steel mesh conveying assembly includes a stainless steel mesh and two sets of rollers rotatably connected to the second support frame. Chains are fixedly installed on both sides of the stainless steel mesh, and the chains are meshed with sprockets fixedly installed on the surfaces of the two sets of rollers. A third synchronous belt assembly is installed between the rollers and the transmission rod below, and the roller on the side opposite to the third synchronous belt assembly is connected to the vibratory excavator.

[0007] Furthermore, the vibratory excavator includes a vibratory shovel, a rotating shaft, a first connecting rod, a rotating wheel, and a third connecting rod. The vibratory shovel is fixedly connected to the rotating shaft, the rotating shaft is rotatably connected below the second support frame, the rotating wheel is fixedly installed at both ends of the roller shaft, a second connecting rod is hinged to one side of the vibratory shovel, the first connecting rod is hinged between the second connecting rod and the second support frame, the third connecting rod is hinged between the first connecting rod and the rotating wheel, and the third connecting rod is hinged to the first connecting rod near the position of the second connecting rod.

[0008] Compared to existing technologies, the advantages of this invention are as follows: The adjustable-spacing harvesting mechanism allows the horizontal adjustment component to adapt to the planting row spacing, plant size, and root distribution width of different rhizomatous medicinal herbs by adjusting the spacing of the digging components. This prevents problems such as uneven digging, root cutting, scratching of medicinal herbs, and missed digging. The second hydraulic telescopic rod controls the raising and lowering of the digging components to adapt to the planting height of different rhizomatous medicinal herbs, preventing damage to stems and leaves and scratches to medicinal herbs during movement. The excavation component automatically digs downwards from all sides of rhizomes and places the soil-covered rhizomes on the ground, preventing problems such as digging off-center, cutting roots, and scratching the herbs. The automatic sieving mechanism automatically separates the soil-covered rhizomes from the soil, eliminating the need for manual stripping. The separated rhizomes fall automatically onto the ground for easy collection, improving both the quality and efficiency of the harvested rhizomes. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0010] Figure 1 This is a first perspective view of an adjustable rhizome harvesting device according to the present invention; Figure 2 This is a perspective view of the angle adjustment mechanism, the spacing adjustable harvesting mechanism, and the automatic screening mechanism of the present invention working together. Figure 3 This is a perspective view of the adjustable-spacing harvesting mechanism of the present invention; Figure 4 This is a perspective view of the excavation component of the present invention; Figure 5 This is a perspective view of the automatic screening mechanism of the present invention; Figure 6 This is a second perspective view of an adjustable rhizome harvesting device according to the present invention; Figure 7 For the present invention Figure 2 A magnified view of a portion of point a. Figure 8 For the present invention Figure 2 A magnified view of a section at point b in the middle; Figure 9 For the present invention Figure 2 A magnified view of a section at point c.

[0011] The labels in the diagram represent: 1. Self-propelled vehicle body; 11. Mobile frame; 12. First load-bearing frame; 2. Angle adjustment mechanism; 21. Rotating frame; 22. First hydraulic telescopic rod; 3. Adjustable spacing harvesting mechanism; 31. Excavation assembly; 311. Central frame; 312. Suspension frame; 313. Excavator blade; 314. Third hydraulic telescopic rod; 315. Rib plate; 316. Bracket; 317. Shaft pin; 32. First drive motor; 33. Positive and negative threaded rod; 34. Limiting rod; 35. Fixing frame; 36. Movable frame; 37. Second hydraulic telescopic rod; 4. Automatic screening mechanism; 41. Second support frame; 411. Vibrating shovel; 412. Rotating shaft; 413. First connecting rod; 414. Second connecting rod; 42. Second drive motor; 43. Worm gear; 44. First synchronous belt assembly; 45. Worm wheel; 46. Second synchronous belt assembly; 47. Transmission rod; 48. Third synchronous belt assembly; 49. Stainless steel mesh; 491. Roller; 492. Rotating wheel; 493. Third connecting rod. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0013] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7 An adjustable harvesting device for rhizomes and other medicinal materials, comprising a self-propelled vehicle body 1; An angle adjustment mechanism 2 is installed at the rear of the self-propelled vehicle body 1; An adjustable-spacing harvesting mechanism 3 is installed on the angle adjustment mechanism 2. The adjustable-spacing harvesting mechanism 3 includes a digging component 31 for digging up rhizomes, a horizontal adjustment component for adjusting the spacing of the digging component 31, and a second hydraulic telescopic rod 37 for controlling the raising and lowering of the digging component 31. The horizontal adjustment component is connected to the angle adjustment mechanism 2. The second hydraulic telescopic rod 37 is connected to the horizontal adjustment component at the top and to the digging component 31 at the bottom. The angle adjustment mechanism 2 is equipped with an automatic screening mechanism 4 for screening root and rhizome medicinal materials from the soil. The automatic screening mechanism 4 is located behind the adjustable-spacing harvesting mechanism 3. A mobile frame 11 is fixedly installed at the rear of the self-propelled vehicle body 1, a first support frame 12 is fixedly installed on the top of the self-propelled vehicle body 1, a set of mobile wheels is installed at the bottom of the self-propelled vehicle body 1, the upper part of the angle adjustment mechanism 2 is connected to the first support frame 12, and the lower part of the angle adjustment mechanism 2 is connected to the mobile frame 11 near the set of mobile wheels.

[0014] In this embodiment, when an adjustable rhizome harvesting device is working normally, the self-propelled vehicle 1 drives the adjustable-spacing harvesting mechanism 3 and the automatic screening mechanism 4 to move synchronously. The angle adjustment mechanism 2 adjusts the adjustable-spacing harvesting mechanism 3 and the automatic screening mechanism 4 to a horizontal position during use, allowing them to simultaneously dig and screen the rhizome herbs during movement. When not in use, the adjustable-spacing harvesting mechanism 3 and the automatic screening mechanism 4 are adjusted to a vertical position, reducing the equipment size and providing easy adjustment. The adjustable-spacing harvesting mechanism 3, through its horizontal adjustment component, adapts to the planting row spacing, plant thickness, and root distribution width of different rhizome herbs by adjusting the spacing of the digging components 31. The second hydraulic telescopic rod 37, by controlling the raising and lowering of the digging component 31, adapts to the planting height of different rhizomatous medicinal materials, preventing damage to stems and leaves and scratches during movement. The digging component 31 automatically digs downwards from all sides of the rhizomatous medicinal materials and places the soil-covered materials on the ground, preventing damage to stems and leaves and scratches during movement. The automatic sieving mechanism 4 automatically sieves the soil-covered rhizomatous medicinal materials, separating them from the soil without the need for manual stripping. The separated materials fall automatically onto the ground for easy collection, improving both the quality and efficiency of the harvested rhizomatous medicinal materials.

[0015] Example 2: In some embodiments, such as Figures 1-9 As shown, in a preferred embodiment of the present invention, the angle adjustment mechanism 2 includes a rotating frame 21 and a first hydraulic telescopic rod 22. The first hydraulic telescopic rod 22 is rotatably connected to the central shaft surface fixedly installed on the surface of the mobile frame 11. The first hydraulic telescopic rod 22 is hinged above the surface of the first support frame 12 and hinged below the surface of the rotating frame 21. The horizontal adjustment component and the automatic screening mechanism 4 are both connected to the rotating frame 21. The horizontal adjustment assembly includes a positive and negative threaded rod 33, a movable frame 36, a fixed frame 35 fixedly connected to the rotating frame 21, a first drive motor 32, and a limiting rod 34. Several movable frames 36 are symmetrical about the fixed frame 35 and are all threadedly connected to the surface of the positive and negative threaded rod 33. One end of the positive and negative threaded rod 33 is rotatably connected to the surface of the rotating frame 21. The output end of the first drive motor 32 is fixedly connected to the other end of the positive and negative threaded rod 33. The movable frame 36 is slidably connected to the limiting rod 34. Two sets of second hydraulic telescopic rods 37 are hinged below the fixed frame 35 and the movable frame 36. The digging assembly 31 is connected below the second hydraulic telescopic rods 37. The excavation assembly 31 includes a central frame 311, a suspension frame 312, a support 316, and an excavation part. The suspension frame 312 is fixedly installed above the central frame 311, and a plurality of the supports 316 are fixedly installed around the central frame 311. The excavation part is connected to the supports 316, and the second hydraulic telescopic rod 37 is hinged to the suspension frame 312 below. The excavating part includes a digging blade 313, a third hydraulic telescopic rod 314, a rib plate 315, and a pivot pin 317. The rib plate 315 is fixedly installed on the back of the digging blade 313. The pivot pin 317 is fixedly installed on one end of the rib plate 315 near the support 316. The pivot pin 317 is rotatably connected inside the support 316. One end of the third hydraulic telescopic rod 314 is hinged to the support 316 at a position above the pivot pin 317, and the other end is hinged to the middle position of the rib plate 315.

[0016] In this embodiment, the specific model or size of the digging shovel 313 can meet the needs of most common rhizome medicinal materials on the market. Since the digging part can be replaced as a whole, when the burial depth of the rhizome medicinal materials is long, a longer digging shovel 313 can be selected to dig rhizome medicinal materials at a depth of 40 cm to 50 cm. Through the setting of the angle adjustment mechanism 2, the first hydraulic telescopic rod 22 controls the rotating frame 21 to rotate around the central axis through telescopic movement. When in use, it is used to adjust the adjustable spacing harvesting mechanism 3 and the automatic screening mechanism 4 to a horizontal state. When not in use, the adjustable spacing harvesting mechanism 3 and the automatic screening mechanism 4 are adjusted to a vertical state. The first drive motor 32 can realize the relative movement of several movable frames 36 in opposite directions by controlling the rotation of the positive and negative threaded screws 33. Furthermore, the spacing of the digging components 31 can be adjusted according to the planting row spacing, plant thickness, and root distribution width of different rhizomatous medicinal materials to prevent problems such as digging off-center, cutting roots, scratching medicinal materials, and missing plants. The limiting rod 34 can adjust the opening and closing angle of several digging shovels 313 according to the root distribution width of different types of medicinal materials through telescopic movement. On the other hand, it can control the digging depth of the digging shovels 313 in conjunction with the lifting and lowering of the second hydraulic telescopic rod 37. Both of these aspects can avoid the problem of bringing out a large amount of soil during digging without damaging the roots of rhizomatous medicinal materials. Several digging shovels 313 symmetrically distributed around the central frame 311 can dig evenly around the roots of medicinal materials to prevent problems such as digging off-center, cutting roots, and scratching medicinal materials. This is achieved through the setting of the adjustable-spacing harvesting mechanism 3. Not only can it accurately match the harvesting spacing according to the actual planting row spacing, so that the digging operation area corresponds precisely to the position of the medicinal plant, but it can also harvest single plants and multi-row rhizome medicinal materials in a positional manner during the operation, effectively avoiding seedling damage, missed harvesting, and digging off-center due to inconsistent spacing, thereby improving the quality of the harvested rhizome medicinal materials. To accurately monitor the planting location of root and tuber medicinal herbs, a high-definition industrial camera or binocular camera can be installed on the rotating frame 21 to acquire images of the herbs in real time. Deep learning algorithms are used to analyze the images and identify the positions of the stems, leaves, and roots of the root and tuber medicinal herb plants. This technology has already been applied in the automatic row alignment devices of root and tuber crop harvesters, corn harvesters, and potato harvesters, and will not be elaborated upon further.

[0017] Example 3: In some embodiments, such as Figures 1-9 As shown, in a preferred embodiment of the present invention, the automatic screening mechanism 4 includes a second support frame 41, a drive assembly, a stainless steel mesh conveying assembly for separating the soil of rhizomes and medicinal materials, and a vibrating digging part for feeding the soil wrapped with rhizomes and medicinal materials into the stainless steel mesh conveying assembly. The second support frame 41 is fixedly connected to the rotating frame 21, the drive assembly is connected to the second support frame 41, and the vibrating digging part is connected between the second support frame 41 and the stainless steel mesh conveying assembly. The drive assembly includes a second drive motor 42, a worm gear 43, a worm wheel 45, a second synchronous belt assembly 46, a transmission rod 47, and a third synchronous belt assembly 48. Several worm gears 43 are rotatably connected to the surface of the second support frame 41. The second drive motor 42 is fixedly mounted on the surface of the rotating frame 21. One end of the worm gear 43 in the middle position is fixedly mounted on the output end of the second drive motor 42. A first synchronous belt assembly 44 is installed between the remaining worm gears 43. Two sets of transmission rods 47 are rotatably connected to the surface of the second support frame 41. The worm wheel 45 is fixedly mounted on the surface of the upper transmission rod 47. The worm gear 43 is meshed with the worm wheel 45. A second synchronous belt assembly 46 is installed between the two sets of transmission rods 47. The stainless steel mesh conveying assembly is connected to the transmission rods 47. The stainless steel mesh conveying assembly includes a stainless steel mesh 49 and two sets of rollers 491 rotatably connected to the second support frame 41. Chains are fixedly installed on both sides of the stainless steel mesh 49, and the chains are meshed with sprockets fixedly installed on the surfaces of the two sets of rollers 491. A third synchronous belt assembly 48 is installed between the rollers 491 and the transmission rod 47 below. The rollers 491 on the side away from the third synchronous belt assembly 48 are connected to the vibratory excavator. The vibratory excavator includes a vibratory shovel 411, a rotating shaft 412, a first connecting rod 413, a rotating wheel 492, and a third connecting rod 493. The vibratory shovel 411 is fixedly connected to the rotating shaft 412, and the rotating shaft 412 is rotatably connected below the second support frame 41. The rotating wheel 492 is fixedly installed at both ends of the roller shaft 491. A second connecting rod 414 is hinged to one side of the vibratory shovel 411. The first connecting rod 413 is hinged between the second connecting rod 414 and the second support frame 41. The third connecting rod 493 is hinged between the first connecting rod 413 and the rotating wheel 492. The connecting rod 493 is hinged to the first connecting rod 413 near the second connecting rod 414. The first synchronous belt assembly 44, the second synchronous belt assembly 46, and the third synchronous belt assembly 48 each include a synchronous belt and two synchronous pulleys. The synchronous belt is slidably connected between the two synchronous pulleys. The two synchronous pulleys in the first synchronous belt assembly 44 are respectively fixedly installed on the surfaces of two adjacent parallel worm gears 43. The two synchronous pulleys in the second synchronous belt assembly 46 are respectively fixedly installed on the surfaces of the upper and lower sets of transmission rods 47. The two synchronous pulleys in the third synchronous belt assembly 48 are respectively fixedly installed on the surfaces of two sets of rollers 491.

[0018] In this embodiment, the second drive motor 42 controls the worm gear 43 to rotate. The rotating worm gear 43 controls the second synchronous belt assembly 46 and the upper and lower sets of transmission rods 47 to rotate via the worm wheel 45. The lower transmission rod 47 controls the roller shaft 491 of the stainless steel mesh conveying assembly to rotate via the third synchronous belt assembly 48, so that the stainless steel mesh 49 can circulate between the two sets of roller shafts 491. The rotating set of roller shafts 491 drives the rotating wheel 492 to rotate synchronously. The rotating wheel 492 controls the first connecting rod 413 and the second connecting rod 492 via the third connecting rod 493. 14. The first link 413 and the second link 414 reciprocate to control the vibrating shovel 411 to vibrate up and down around the axis of the rotating shaft 412. The vibrating shovel 411, which moves synchronously with the self-propelled vehicle body 1 and vibrates up and down, can transport the dug-out rhizomes to the surface of the stainless steel mesh 49. During this process, the energy generated by the vibrating shovel 411 can shake off the soil covering the surface of the Chinese medicinal herbs. The soil falls through the gaps in the stainless steel mesh 49, and the rhizomes are transported to the rear and fall on the soil, which is convenient for subsequent centralized harvesting.

[0019] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable rhizome harvesting device, comprising a self-propelled vehicle body (1), characterized in that: An angle adjustment mechanism (2) is installed at the rear of the self-propelled vehicle body (1); An adjustable-spacing harvesting mechanism (3) is installed on the angle adjustment mechanism (2). The adjustable-spacing harvesting mechanism (3) includes a digging component (31) for digging rhizomes, a horizontal adjustment component for adjusting the spacing of the digging component (31), and a second hydraulic telescopic rod (37) for controlling the raising and lowering of the digging component (31). The horizontal adjustment component is connected to the angle adjustment mechanism (2), the second hydraulic telescopic rod (37) is connected to the horizontal adjustment component above, and the second hydraulic telescopic rod (37) is connected to the digging component (31) below. The angle adjustment mechanism (2) is equipped with an automatic screening mechanism (4) for screening root and rhizome medicinal materials from the soil. The automatic screening mechanism (4) is located behind the adjustable-spacing harvesting mechanism (3).

2. The adjustable rhizome harvesting device according to claim 1, characterized in that, A mobile frame (11) is fixedly installed at the rear of the self-propelled vehicle body (1), a first support frame (12) is fixedly installed on the top of the self-propelled vehicle body (1), a mobile wheel set is installed at the bottom of the self-propelled vehicle body (1), the upper part of the angle adjustment mechanism (2) is connected to the first support frame (12), and the lower part of the angle adjustment mechanism (2) is connected to the mobile frame (11) near the mobile wheel set.

3. The adjustable rhizome harvesting device according to claim 2, characterized in that, The angle adjustment mechanism (2) includes a rotating frame (21) and a first hydraulic telescopic rod (22). The first hydraulic telescopic rod (22) is rotatably connected to the central shaft surface fixedly installed on the surface of the mobile frame (11). The first hydraulic telescopic rod (22) is hinged above to the surface of the first support frame (12) and hinged below to the surface of the rotating frame (21). The horizontal adjustment component and the automatic screening mechanism (4) are both connected to the rotating frame (21).

4. The adjustable rhizome harvesting device according to claim 3, characterized in that, The horizontal adjustment assembly includes a positive and negative threaded rod (33), a movable frame (36), a fixed frame (35) fixedly connected to the rotating frame (21), a first drive motor (32), and a limiting rod (34). Several movable frames (36) are symmetrical about the fixed frame (35) and are all threadedly connected to the surface of the positive and negative threaded rod (33). One end of the positive and negative threaded rod (33) is rotatably connected to the surface of the rotating frame (21). The output end of the first drive motor (32) is fixedly connected to the other end of the positive and negative threaded rod (33). The movable frame (36) is slidably connected to the limiting rod (34). Two sets of second hydraulic telescopic rods (37) are hinged below the fixed frame (35) and the movable frame (36). The digging assembly (31) is connected below the second hydraulic telescopic rods (37).

5. The adjustable rhizome harvesting device according to claim 4, characterized in that, The excavation assembly (31) includes a central frame (311), a suspension frame (312), a support frame (316), and an excavation part. The suspension frame (312) is fixedly installed above the central frame (311), and several of the supports (316) are fixedly installed around the central frame (311). The excavation part is connected to the supports (316), and the second hydraulic telescopic rod (37) is hinged to the suspension frame (312) below.

6. The adjustable rhizome harvesting device according to claim 5, characterized in that, The excavating part includes a digging blade (313), a third hydraulic telescopic rod (314), a rib plate (315), and a pin (317). The rib plate (315) is fixedly installed on the back of the digging blade (313). The pin (317) is fixedly installed on one end of the rib plate (315) near the bracket (316). The pin (317) is rotatably connected inside the bracket (316). One end of the third hydraulic telescopic rod (314) is hinged to the bracket (316) above the pin (317), and the other end is hinged to the middle position of the rib plate (315).

7. The adjustable rhizome harvesting device according to claim 6, characterized in that, The automatic screening mechanism (4) includes a second support frame (41), a drive assembly, a stainless steel mesh conveying assembly for separating the soil of rhizomes and medicinal materials, and a vibrating digging part for feeding the soil containing the rhizomes and medicinal materials into the stainless steel mesh conveying assembly. The second support frame (41) is fixedly connected to the rotating frame (21), the drive assembly is connected to the second support frame (41), and the vibrating digging part is connected between the second support frame (41) and the stainless steel mesh conveying assembly.

8. The adjustable rhizome harvesting device according to claim 7, characterized in that, The drive assembly includes a second drive motor (42), a worm (43), a worm wheel (45), a second synchronous belt assembly (46), a transmission rod (47), and a third synchronous belt assembly (48). Several of the worms (43) are rotatably connected to the surface of the second support frame (41). The second drive motor (42) is fixedly installed on the surface of the rotating frame (21). One end of the worm (43) in the middle position is fixedly installed on the output end of the second drive motor (42). The remaining worms (43) are connected to the first synchronous belt assembly (44). The surface of the second support frame (41) is rotatably connected to two sets of transmission rods (47). The worm wheel (45) is fixedly installed on the surface of the upper transmission rod (47). The worm (43) and the worm wheel (45) are meshed and connected. The second synchronous belt assembly (46) is installed between the two sets of transmission rods (47). The stainless steel mesh conveying assembly is connected to the transmission rods (47).

9. The adjustable rhizome harvesting device according to claim 8, characterized in that, The stainless steel mesh conveying assembly includes a stainless steel mesh (49) and two sets of rollers (491) rotatably connected to the second support frame (41). Chains are fixedly installed on both sides of the stainless steel mesh (49), and the chains are meshed with sprockets fixedly installed on the surfaces of the two sets of rollers (491). A third synchronous belt assembly (48) is installed between the rollers (491) and the transmission rod (47) below. The rollers (491) on the side away from the third synchronous belt assembly (48) are connected to the vibratory excavator.

10. The adjustable rhizome harvesting device according to claim 9, characterized in that, The vibratory excavator includes a vibratory shovel (411), a rotating shaft (412), a first connecting rod (413), a rotating wheel (492), and a third connecting rod (493). The vibratory shovel (411) is fixedly connected to the rotating shaft (412), and the rotating shaft (412) is rotatably connected below the second support frame (41). The rotating wheel (492) is fixedly installed at both ends of the roller shaft (491). A second connecting rod (414) is hinged to one side of the vibratory shovel (411). The first connecting rod (413) is hinged between the second connecting rod (414) and the second support frame (41). The third connecting rod (493) is hinged between the first connecting rod (413) and the rotating wheel (492). The third connecting rod (493) is hinged to the first connecting rod (413) near the position of the second connecting rod (414).

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