Harvester for tuberous root type traditional Chinese medicinal materials

Abstract

A root tuber type traditional Chinese medicinal material harvester comprises a harvesting assembly, a rack, a separating assembly and a material collecting assembly, the harvesting assembly comprises a scraper knife part, and the movement track and the inclination angle of the scraper knife part can be adjusted; the rack comprises an upper rack and a lower rack, and a containing cavity is formed between the upper rack and the lower rack and used for containing the separation assembly; the separation assembly comprises a first separation mechanism and a second separation mechanism which are obliquely arranged from back to top and are staggered; the first separation mechanism comprises a screen mechanism, a crushing wheel assembly and a hydraulic cylinder, the distance between the crushing wheel assembly and the screen mechanism can be adjusted, and the hydraulic cylinder can lift the first separation mechanism. The whole structure and arrangement of the digging shovel, the separation assembly and the rack are optimized, so that the shovel blade part can be suitable for traditional Chinese medicine crops with different soil textures and categories; a multi-stage separation mechanism is arranged by optimizing the space of the rack, so that the separation effect is improved; the separating mechanism is obliquely arranged, the volume of the material collecting assembly is increased, the hopper can swing and dump, manual replacement is not needed, and the working efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of agricultural harvesting machine technology, specifically relating to a harvesting machine for tuberous root medicinal materials. Background Technology

[0002] Root-type Chinese medicinal herbs, such as Ophiopogon japonicus, Asparagus cochinchinensis, and Polygonatum sibiricum, are cultivated throughout my country. After these herbs mature, their roots are buried in the soil, and manual harvesting is extremely inefficient. Under the strategy of promoting modern mechanized planting, the use of large agricultural harvesting machinery such as harvesters can greatly improve harvesting efficiency and free up labor.

[0003] In existing harvesters for root-type Chinese medicinal herbs, the following problems usually exist: how to adapt the digging shovel to different soil types and different varieties of Chinese medicinal herbs to achieve better digging and harvesting results; and how to better separate the soil and Chinese medicinal herbs after harvesting to improve the cleanliness of the Chinese medicinal herbs.

[0004] In conclusion, optimizing the digging shovel and separating and screening mechanisms in harvesting machinery for root-type medicinal herbs is an extremely important and indispensable issue for promoting the modernization of agricultural mechanization in the field of root-type medicinal herb cultivation. Summary of the Invention

[0005] This invention addresses the problems of fixed working modes of the digging shovel in existing harvesters of root-type medicinal herbs, resulting in poor separation and screening of harvested medicinal herbs and soil. It optimizes the overall structure and layout of the digging shovel, separation assembly, and frame. This allows the shovel blade to adjust its trajectory and tilt angle to suit different soil types and varieties of medicinal herbs, reducing soil resistance and preventing damage. The powertrain, traditionally located below the cab, is now positioned on the upper layer of the frame, increasing the space in the middle layer for a multi-stage separation mechanism. This mechanism features adjustable crushing wheels and an optimized screen structure, significantly improving the separation of soil and medicinal herbs. The inclined arrangement of the separation mechanism increases the capacity of the collection assembly, allowing for the collection of more medicinal herbs. The hopper can be tilted and emptied, eliminating the need for manual hopper replacement and improving the harvester's efficiency.

[0006] The technical problem solved by this invention can be achieved by the following technical solution: a harvester for tuberous root medicinal materials, comprising a harvesting assembly, a frame, a separating assembly, and a collecting assembly, wherein: The harvesting assembly, located at the front of the frame, includes a blade section for digging up soil clods, a primary adjustment assembly, and a secondary adjustment assembly. The primary and secondary adjustment assemblies are used to adjust the movement trajectory and tilt angle of the blade section, respectively. The frame includes an upper frame and a lower frame. The upper frame is equipped with a powertrain and a cab for providing power. The lower frame is used to connect the travel assembly. A cavity is formed between the upper frame and the lower frame to accommodate the separation assembly. The separation assembly includes a first separation mechanism and a second separation mechanism, which are arranged at an upward rearward angle and are misaligned with each other. The aggregate assembly, located at the rear of the frame, is used to connect to the second separation mechanism and also to collect the separated and screened Chinese medicinal materials and discharge the collected Chinese medicinal materials. The first separation mechanism includes a screen mechanism, a crushing wheel assembly, and hydraulic cylinders located on both sides of the first separation mechanism. The first separation mechanism is connected to the harvesting assembly. The crushing wheel assembly is used to crush the soil, and lifting components are provided on both sides to adjust the distance between the crushing wheel assembly and the screen mechanism. The two ends of the hydraulic cylinders are respectively installed in cooperation with the frame and the first separation mechanism to lift the first separation mechanism. The second separation mechanism includes a screen mechanism. The front end of the second separation mechanism is connected to the first separation mechanism, and the rear end is connected to the aggregate assembly. The material collection assembly includes a hopper and a discharge assembly. The hopper is used to collect Chinese medicinal herbs, and the discharge assembly is used to control the movement of the hopper and discharge the Chinese medicinal herbs.

[0007] The primary adjustment assembly includes a drive shaft and two eccentric parts on both sides. The eccentric parts include eccentric wheels and eccentric swing arms. The two ends of the drive shaft are respectively connected to the eccentric wheels on both sides. The two ends of the eccentric swing arms are respectively installed in cooperation with the eccentric wheels and the blade part. The eccentric swing arms are used to drive the blade part to swing.

[0008] The secondary adjustment component includes a blade stroke groove. The secondary adjustment component is located on both sides of the blade section. The blade section is provided with a blade sliding part. The blade sliding part is installed in conjunction with the blade stroke groove, so that the blade sliding part can slide along the blade stroke groove, thereby adjusting the tilt angle of the blade section.

[0009] The sieve mechanism includes a sieve body, which includes several sieve tooth units. Each sieve tooth unit includes a first tooth plate and a second tooth plate. The first tooth plate and the second tooth plate are perpendicular to each other and are used to move soil clods and medicinal crops.

[0010] The screen mechanism also includes several cams located inside the screen mechanism. Each cam includes at least one protrusion. When the cam rotates, the protrusion periodically contacts and disengages from the screen body, causing the screen body to periodically bulge and reset, thereby achieving vibration of the screen body.

[0011] The crushing wheel assembly includes a first crushing wheel and a second crushing wheel. The lifting assembly includes a first lifting part and a second lifting part. The first lifting part is disposed on both sides of the first crushing wheel. The first lifting part includes a lifting screw and a lifting seat. One end of the lifting screw is fixedly installed to the first crushing wheel, and the lifting screw can move up and down through the lifting seat to realize the lifting and lowering of the first crushing wheel.

[0012] The second lifting section is located on both sides of the second crushing wheel. The second lifting section includes a crushing wheel stroke groove, and the second crushing wheel can move along the crushing wheel stroke groove to realize the lifting and lowering of the second crushing wheel.

[0013] The installation positions of the first and second crushing wheels and the first and second lifting parts can be interchanged.

[0014] Auxiliary wheels are also provided on both sides of the first separation mechanism to assist the movement of the walking assembly and to lift the first separation mechanism off the ground.

[0015] The discharge assembly includes a connecting arm and a hydraulic cylinder. The two sides of the hopper are hinged to one end of the connecting arm, and the other end of the connecting arm is installed in conjunction with the hydraulic cylinder. The hydraulic cylinder can swing and flip the hopper by extending and retracting its shaft.

[0016] Compared with the prior art, this invention has the following beneficial effects: Addressing the problem that existing harvesters of root-type medicinal herbs have a fixed digging shovel working mode and poor separation and screening effect between harvested medicinal herbs and soil, this invention optimizes the overall structure and layout of the digging shovel, separation assembly, and frame. This allows the shovel blade to adjust its movement trajectory and tilt angle for different soil types and varieties of medicinal herbs, reducing soil resistance and preventing damage to the herbs. The powertrain, traditionally located below the cab, is now positioned on the upper layer of the frame, increasing the space in the middle layer for a multi-stage separation mechanism. This mechanism includes an adjustable crushing wheel and an optimized screen structure, significantly improving the separation effect between soil and medicinal herbs. The inclined arrangement of the separation mechanism increases the capacity of the collection assembly, allowing for the collection of more medicinal herbs. The hopper can be tilted and swung, eliminating the need for manual hopper replacement and improving the harvester's efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a structural diagram of the frame and powertrain; Figure 4 These are cross-sectional views and enlarged partial views of the present invention; Figure 5This is a schematic diagram of the structure of the first separation mechanism and the harvesting assembly. Figure 1 ; Figure 6 This is a schematic diagram of the harvester assembly; Figure 7 yes Figure 6 Enlarged view of section A; Figure 8 yes Figure 6 Enlarged view of section B; Figure 9 This is a schematic diagram of the screen mechanism; Figure 10 This is a schematic diagram of the structure of the first separation mechanism and the harvesting assembly. Figure 2 ; Figure 11 yes Figure 10 Enlarged view of section C; Figure 12 yes Figure 10 Enlarged view of section D; Figure 13 This is a structural diagram of the aggregate assembly. Figure 1 ; Figure 14 This is a structural diagram of the aggregate assembly. Figure 2 .

[0018] In the diagram: 1-Harvesting assembly, 11-Shovel section, 111-Shovel sliding section, 12-First-stage adjustment assembly, 121-Drive shaft, 122-Eccentric section, 1221-Eccentric wheel, 1222-Eccentric swing arm, 13-Second-stage adjustment assembly, 131-Shovel stroke groove, 2-Frame, 21-Upper frame, 22-Lower frame, 23-Accommodation cavity, 3-Separation assembly, 31-First separation mechanism, 311-Screen mechanism, 3111-Screen tooth unit, 3111a-First toothed plate, 3111b-Second toothed plate, 3112 - Cam, 3112a - Protrusion, 312 - Crushing wheel assembly, 3121 - First crushing wheel, 3122 - Second crushing wheel, 313 - Hydraulic cylinder, 314 - Lifting assembly, 3141 - First lifting part, 3141a - Lifting screw, 3141b - Lifting seat, 3142 - Second lifting part, 3142a - Crushing wheel stroke groove, 315 - Auxiliary wheel, 4 - Aggregating assembly, 41 - Hopper, 42 - Discharge assembly, 421 - Connecting arm, 422 - Hydraulic cylinder, 5 - Power assembly, 51 - Cab, 6 - Traveling assembly. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0020] In the description of this invention, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0021] Combined with appendix Figures 1 to 14 As shown, this embodiment discloses a harvester for tuberous root medicinal materials, including a harvesting assembly 1, a frame 2, a separating assembly 3, and a collecting assembly 4, wherein: Harvesting assembly 1, located at the front of frame 2, includes a blade section 11 for digging soil clods, a primary adjustment component 12 and a secondary adjustment component 13. The blade section 11 is provided with several blade teeth. The primary adjustment component 12 and the secondary adjustment component 13 are used to adjust the movement trajectory and tilt angle of the blade section 11, respectively. In summary, the primary adjustment component 12 includes a drive shaft 121 and two eccentric portions 122 on both sides. Each eccentric portion 122 includes an eccentric wheel 1221 and an eccentric swing arm 1222. The two ends of the drive shaft 121 are respectively connected to the eccentric wheels 1221 on both sides. The two ends of the eccentric swing arm 1222 are respectively installed in cooperation with the eccentric wheel 1221 and the shovel part 11. The eccentric swing arm 1222 is used to drive the shovel part 11 to swing, which can adjust the shovel trajectory of the shovel part 11 to be below the Chinese medicinal herb crop according to different soil types and varieties, so as to shovel out more soil at once, while avoiding breaking the Chinese medicinal herb crop.

[0022] In conjunction with the above, the secondary adjustment component 13 includes a blade travel groove 131. The secondary adjustment component 13 is disposed on both sides of the blade part 11. The blade part 11 is provided with a blade sliding part 111, which is installed in conjunction with the blade travel groove 131, allowing the blade sliding part 111 to slide along the blade travel groove 131, thereby adjusting the tilt angle of the blade part 11. This allows for adjustment of the shoveling angle of the blade part 11 for different soil types, preventing jamming or chipping, and enabling the blade part 11 to shovel into the soil more smoothly. Preferably, in this embodiment, the blade travel groove 131 has an arc-shaped structure.

[0023] In conjunction with the above, the frame 2 includes an upper frame 21 and a lower frame 22. The upper frame 21 is equipped with a power assembly 5 for providing power and a cab 51. The lower frame 22 is used to connect the walking assembly 6. A receiving cavity 23 is formed between the upper frame 21 and the lower frame 22. The receiving cavity 23 is used to accommodate the separation assembly 3. Compared with the traditional harvester where the power assembly 5 is located below the cab 51, the arrangement structure of the frame 2 and the various components of the harvester is optimized. Under the same machine volume, the separation assembly of the present invention has a longer length, which can extend the separation time of Chinese medicinal materials and soil, thereby improving the separation effect. In summary, the separation assembly 3 includes a first separation mechanism 31 and a second separation mechanism 32. The first and second separation mechanisms 31 and 32 are arranged at an upward and rearward angle, and are staggered. Preferably, in this embodiment, the rear of the first separation mechanism 31 is located above the front of the second separation mechanism 32, allowing the soil and medicinal herbs passing through the first separation mechanism 31 to fall freely into the second separation mechanism 32, making it easier for the soil to detach from the medicinal herbs. The upward and rearward angle arrangement of the first and second separation mechanisms 31 extends the time required for the soil and medicinal herbs to pass through the separation assembly 3, improving the separation effect. Furthermore, it increases the height of the hopper 41 in the collection assembly 4, thereby accommodating more medicinal herbs. In conjunction with the above, the first separation mechanism 31 includes a screen mechanism 311, a crushing wheel assembly 312, and hydraulic cylinders 313 located on both sides of the first separation mechanism 31. The first separation mechanism 31 is connected to the harvesting assembly 1. The crushing wheel assembly 312 is used to crush the soil and is provided with lifting components 314 on both sides to adjust the distance between the crushing wheel assembly 312 and the screen mechanism 311. The two ends of the hydraulic cylinders 313 are respectively installed in cooperation with the frame 2 and the first separation mechanism 31 to lift the first separation mechanism 31, so that the front end of the first separation mechanism 31 can swing, so as to better transport the soil clods shoveled in by the harvesting assembly 1 into the first separation mechanism 31 and move along the separation assembly 3. In conjunction with the above, the screen mechanism 311 includes a screen body, which includes a plurality of screen tooth units 3111. The screen tooth units 3111 are arranged in a axial direction protruding outward from the screen mechanism 311, which can penetrate the soil and improve the soil breaking effect. The screen tooth unit 3111 includes a first tooth plate 3111a and a second tooth plate 3111b. The first tooth plate 3111a and the second tooth plate 3111b are perpendicular to each other and are used to push the soil clods and Chinese medicinal materials to move.

[0024] In conjunction with the above, the screen mechanism 311 also includes a plurality of cams 3112 located inside the screen mechanism 311. Each cam 3112 includes at least one protrusion 3112a. Preferably, in this embodiment, the number of protrusions 3112a provided on a single cam 3112 is two. When the cam 3112 rotates, the protrusions 3112a periodically contact and disengage from the screen body, causing the screen body to periodically bulge and reset, thereby realizing the vibration of the screen body and improving the separation effect of soil and Chinese medicinal materials.

[0025] In conjunction with the above, the crushing wheel assembly 312 includes a first crushing wheel 3121 and a second crushing wheel 3122. Preferably, in this embodiment, the size of the first crushing wheel 3121 is larger than that of the second crushing wheel 3122, which is used to initially crush large clods of soil. The lifting assembly 314 includes a first lifting part 3141 and a second lifting part 3142. The first lifting part 3141 is disposed on both sides of the first crushing wheel 3121. The first lifting part 3141 includes a lifting screw 3141a and a lifting seat 3141b. The lifting screw 3141a and the lifting seat 3141b are connected by threads. One end of the lifting screw 3141a is fixedly installed to the first crushing wheel 3121. Before the harvester starts working, the lifting screw 3141a can be adjusted in advance, and the lifting seat 3141b can be moved up and down to realize the lifting and lowering of the first crushing wheel 3121, thereby adjusting the distance between the first crushing wheel 3121 and the screen mechanism 311 to adapt to different soil types. In other embodiments, the first lifting part 3141 may also adopt common connection structures such as hydraulic cylinder drive in the prior art.

[0026] In conjunction with the above, the second lifting part 3142 is disposed on both sides of the second crushing wheel 3122. The second lifting part 3142 includes a crushing wheel stroke groove 3142a. The second crushing wheel 3122 is installed in conjunction with the crushing wheel stroke groove 3142a, so that the second crushing wheel 3122 can move along the crushing wheel stroke groove 3142a, thereby realizing the lifting and lowering of the second crushing wheel 3122, thereby adjusting the distance between the second crushing wheel 3122 and the screen mechanism 311 to adapt to different soil types.

[0027] Based on the above installation structure, the installation positions of the first crushing wheel 3121 and the second crushing wheel 3122 with the first lifting part 3141 and the second lifting part 3142 can be interchanged. That is, the first crushing wheel 3121 can be installed in conjunction with the second lifting part 3142, and the second crushing wheel 3122 can be installed in conjunction with the first lifting part 3141.

[0028] In conjunction with the above, auxiliary wheels 315 are also provided on both sides of the first separating mechanism 31 to assist the movement of the walking assembly 6 and to lift the first separating mechanism 31 off the ground, thereby reducing the friction between the first separating mechanism 31 and the ground, and thus protecting the first separating mechanism 31 and the auxiliary harvester during movement. The auxiliary wheels 315 adopt the walking wheel structure commonly used in the prior art.

[0029] In conjunction with the above, the second separation mechanism 32 includes a screen mechanism 311. The front end of the second separation mechanism 31 is connected to the first separation mechanism 31, and the rear end is connected to the aggregate assembly 4, for further separation of soil and Chinese medicinal materials.

[0030] In combination with the above, the material collection assembly 4 includes a hopper 41 and a discharge assembly 42. The hopper 41 is used to collect Chinese medicinal materials, and the discharge assembly 42 is used to control the movement of the hopper 41 and discharge the Chinese medicinal materials.

[0031] In summary, the discharge assembly 42 includes a connecting arm 421 and a hydraulic cylinder 422. The two sides of the hopper 41 are hinged to one end of the connecting arm 421, and the other end of the connecting arm 421 is installed in conjunction with the hydraulic cylinder 422. The hydraulic cylinder 422 can swing and flip the hopper 41 by extending and retracting its shaft. Compared with the traditional hopper structure, there is no need for manual handling and replacement of the hopper 41, which saves manpower and resources and improves work efficiency.

[0032] This invention addresses the problems of fixed working modes of the digging shovel in existing harvesters of root-type medicinal herbs, resulting in poor separation and screening of harvested medicinal herbs and soil. It optimizes the overall structure and layout of the digging shovel, separation assembly, and frame. This allows the shovel blade to adjust its trajectory and tilt angle to suit different soil types and varieties of medicinal herbs, reducing soil resistance and preventing damage. The powertrain, traditionally located below the cab, is now positioned on the upper layer of the frame, increasing the space in the middle layer for a multi-stage separation mechanism. This mechanism features adjustable crushing wheels and an optimized screen structure, significantly improving the separation of soil and medicinal herbs. The inclined arrangement of the separation mechanism increases the capacity of the collection assembly, allowing for the collection of more medicinal herbs. The hopper can be tilted and emptied, eliminating the need for manual hopper replacement and improving the harvester's efficiency.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any way. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A root medicinal material harvester, comprising a harvesting assembly (1), a frame (2), a separation assembly (3) and a collecting assembly (4), characterized in that: the harvesting assembly (1) is located at the front of the frame (2) and comprises a shovel part (11) for digging soil, a first adjusting assembly (12) and a second adjusting assembly (13), the first adjusting assembly (12) and the second adjusting assembly (13) are respectively used to adjust the movement track and the inclination angle of the shovel part (11); the frame (2) comprises an upper frame (21) and a lower frame (22), the upper frame (21) is provided with a power assembly (5) for providing power and a cab (51), the lower frame (22) is used to connect a walking assembly (6), a containing cavity (23) is formed between the upper frame (21) and the lower frame (22), and the containing cavity (23) is used to contain the separation assembly (3); the separation assembly (3) comprises a first separation mechanism (31) and a second separation mechanism (32), the first separation mechanism (31) and the second separation mechanism (32) are arranged in an upwardly rearward inclined manner, and the front end of the second separation mechanism (32) is connected to the lower part of the rear end of the first separation mechanism; the collecting assembly (4) is located at the rear of the frame (2) and is used to connect the second separation mechanism (32) and collect the medicinal material crops after screening and discharge the collected medicinal material crops; the first separation mechanism (31) comprises a screen mechanism (311), a crushing wheel assembly (312) and hydraulic cylinders (313) located on both sides of the first separation mechanism (31), the first separation mechanism (31) is connected to the harvesting assembly (1), the crushing wheel assembly (312) is used to crush soil and is provided with lifting assemblies (314) on both sides to adjust the distance between the crushing wheel assembly (312) and the screen mechanism (311), and the hydraulic cylinders (313) are respectively connected to the frame (2) and the first separation mechanism (31) at both ends to lift the first separation mechanism (31); the second separation mechanism (32) comprises a screen mechanism (311), the front end of the second separation mechanism (31) is connected to the first separation mechanism (31), and the rear end is connected to the collecting assembly (4); the collecting assembly (4) comprises a hopper (41) and a discharging assembly (42), the hopper (41) is used to collect medicinal material crops, and the discharging assembly (42) is used to control the movement of the hopper (41) and discharge the medicinal material crops.

2. The root crop medicinal material harvesting machine according to claim 1, characterized in that: the first adjusting assembly (12) comprises a transmission shaft (121) and eccentric parts (122) on both sides, the eccentric parts (122) comprise eccentric wheels (1221) and eccentric swing arms (1222), the transmission shaft (121) penetrates through the eccentric wheels (1221) on both sides at both ends, the eccentric swing arms (1222) are respectively connected to the eccentric wheels (1221) and the shovel part (11) at both ends, and the eccentric swing arms (1222) are used to swing the shovel part (11).

3. The root crop medicinal material harvesting machine according to claim 2, characterized in that: The secondary adjustment assembly (13) comprises a shovel stroke slot (131), which is arranged on both sides of the shovel part (11), and the shovel part (11) is provided with a shovel sliding part (111), which is matched and installed with the shovel stroke slot (131), so that the shovel sliding part (111) can slide along the shovel stroke slot (131), thereby adjusting the inclination angle of the shovel part (11).

4. The root crop medicinal material harvesting machine according to claim 1, characterized in that: The screen mechanism (311) comprises a screen body, the screen body comprises a plurality of screen tooth units (3111), the screen tooth unit (3111) comprises a first tooth plate (3111a) and a second tooth plate (3111b), the first tooth plate (3111a) and the second tooth plate (3111b) are perpendicular to each other, and are used for pushing the soil blocks and the traditional Chinese medicine crop to move.

5. The root crop medicinal material harvesting machine according to claim 4, characterized in that: The screen mechanism (311) further comprises a plurality of cams (3112) located inside the screen mechanism (311), the cam (3112) comprises at least one convex part (3112a), when the cam (3112) rotates, the convex part (3112a) periodically collides with and separates from the screen body, so that the screen body is periodically raised and reset, and vibration of the screen body is realized.

6. The root crop medicinal material harvesting machine according to claim 5, characterized in that: The crushing wheel assembly (312) comprises a first crushing wheel (3121) and a second crushing wheel (3122), and the lifting assembly (314) comprises a first lifting part (3141) and a second lifting part (3142), the first lifting part (3141) is arranged on both sides of the first crushing wheel (3121), the first lifting part (3141) comprises a lifting screw (3141a) and a lifting seat (3141b), one end of the lifting screw (3141a) is fixedly installed with the first crushing wheel (3121), and the lifting screw (3141a) can move up and down through the lifting seat (3141b), so that the first crushing wheel (3121) is lifted and lowered.

7. The root crop medicinal material harvesting machine according to claim 6, characterized in that: The second lifting part (3142) is arranged on both sides of the second crushing wheel (3122), and the second lifting part (3142) comprises a crushing wheel stroke slot (3142a), the second crushing wheel (3122) can move along the crushing wheel stroke slot (3142a), so that the second crushing wheel (3122) is lifted and lowered.

8. The root medicinal herb harvesting machine according to any one of claims 6 or 7, characterized in that: The installation positions of the first crushing wheel (3121) and the second crushing wheel (3122) and the first lifting part (3141) and the second lifting part (3142) can be exchanged with each other.

9. The root crop medicinal herb harvesting machine according to claim 1, characterized in that: The first separation mechanism (31) is further provided with an auxiliary wheel (315) on both sides, which is used for assisting the movement of the walking assembly (6) and making the first separation mechanism (31) leave the ground.

10. The root crop medicinal material harvesting machine according to claim 1, characterized in that: The discharging assembly (42) comprises a connecting arm (421) and an oil cylinder (422), the hoppers (41) are hingedly connected with one end of the connecting arm (421) on both sides, the other end of the connecting arm (421) is matched and installed with the oil cylinder (422), and the oil cylinder (422) can swing and overturn the hoppers (41) through the stretching and contraction of the shaft.

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