A walking harvester for Salvia miltiorrhiza rhizomes and other Chinese medicinal herbs

Abstract

This utility model discloses a walking-type harvester for Salvia miltiorrhiza rhizomes, relating to the field of mechanized harvesting technology for medicinal herbs. The harvester includes a frame, a walking mechanism, a digging device, a two-stage vibration separation device, a collecting device, and a power unit. Several laterally extending connecting beams are installed on the frame. These connecting beams have a hollow structure and are connected to a blower. Air outlets are located on their outer periphery, facing the conveying surface of the first vibration separation device, for blowing away impurities. A material discharge channel is located at the end of the first vibration separation device, and a brushing channel composed of two brush rollers is located below the material discharge channel to further clean the surface of the medicinal herbs. By incorporating a multi-stage screening, air blowing, and brushing structure, the device achieves efficient and low-damage cleaning and separation of rhizomes, improving the automation level of harvesting operations and the cleanliness of the medicinal herbs. It is suitable for field harvesting of various rhizomes.

Description

Technical Field

[0001] This utility model relates to the field of mechanized harvesting technology of Chinese medicinal materials, specifically, to a walking harvester for Salvia miltiorrhiza rhizomes and other Chinese medicinal materials. Background Technology

[0002] In recent years, with the continuous expansion of the Chinese medicine market, the planting area of ​​Chinese medicinal herbs has also grown rapidly. However, correspondingly, a series of problems in the production process of medicinal herbs have become increasingly prominent. Compared with field crops, the level of mechanization in the planting of Chinese medicinal herbs is still relatively low. From sowing, cultivation, weeding to harvesting, there is a lack of specialized machinery and equipment, and many operations still rely on manual labor, resulting in a large labor input.

[0003] Taking rhizome-type medicinal materials as an example, the main medicinal part of these materials is their underground rhizomes, which have well-developed root systems that penetrate deep into the soil, making harvesting difficult and inefficient. Although CN110366927A discloses a potato harvester for hilly and mountainous areas, which includes a frame, power transmission system, and digging device and has a certain harvesting capacity for rhizome-type medicinal materials, the harvesting process often involves a large amount of soil. Even with the adoption of a two-stage vibration separation structure to improve soil separation, it is still difficult to achieve ideal separation efficiency, resulting in poor cleanliness and affecting subsequent processing and the quality of the medicinal materials. Utility Model Content

[0004] The purpose of this utility model is to provide a walking-type harvester for Salvia miltiorrhiza rhizomes and other Chinese medicinal herbs. This walking-type harvester for Salvia miltiorrhiza rhizomes and other Chinese medicinal herbs solves the problems of low separation and cleaning efficiency, serious soil residue during operation, and heavy manual cleaning burden of existing Salvia miltiorrhiza rhizomes and other Chinese medicinal herbs harvesting equipment by setting up a connecting beam with blower cleaning function, a two-stage vibration separation mechanism, and a brush cleaning structure. It achieves efficient, continuous, and clean harvesting of rhizomes and other Chinese medicinal herbs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mobile harvester for Salvia miltiorrhiza rhizomes and other Chinese medicinal herbs includes a frame, a walking mechanism located below the frame, a digging device, a first vibration separation device, a second vibration separation device, a collecting device, and a power device for driving the first and second vibration separation devices, characterized in that:

[0007] The frame includes several laterally extending connecting beams, which are positioned above the first vibration separation device. The connecting beams are hollow tubular structures, and their inner cavities are connected to a blower device on the frame. The outer peripheral wall of the connecting beams is provided with an air outlet that connects to the inner cavity of the connecting beams, and the air outlets are positioned facing the conveying surface of the first vibration separation device.

[0008] In the existing technology, although some harvesting equipment for Salvia miltiorrhiza root and rhizome crops adopts multi-stage vibration separation mechanism to improve the separation effect of soil and crops, it generally lacks airflow-assisted separation structure. In particular, it lacks airflow blowing measures for soil and fine impurities during the separation process, resulting in incomplete cleaning of soil on the material surface and low overall separation efficiency.

[0009] This invention features several laterally extending connecting beams above the first vibration separation device. These beams not only serve as structural support components but also innovatively employ a hollow tubular structure, with their inner cavities connected to a blower device mounted on the frame. Multiple air outlets are opened on the outer periphery of the connecting beams, oriented towards the conveying surface of the first vibration separation device. This allows for simultaneous vibration separation and the auxiliary blowing of directional airflow to remove dirt and impurities from the conveying surface, thereby further enhancing the separation effect.

[0010] Preferably, a laterally extending baffle is provided at the rear end of the first vibration separation device, the baffle is fixedly connected to the frame, and a material discharge channel is formed between the front end face of the baffle and the end of the first vibration separation device;

[0011] Below the material feeding channel, there are horizontally extending first and second brush rollers. The two ends of the first and second brush rollers are respectively supported on the frame. A brushing channel is formed between the first and second brush rollers. The first and second brush rollers are driven to rotate by a drive mechanism. The front end of the second vibration separation device is located below the brushing channel.

[0012] In the existing technology, the harvesting equipment for Danshen rhizome and other Chinese medicinal materials usually uses a two-stage vibration separation device to initially separate the crop from the soil. However, there is a lack of a dedicated material guiding structure and cleaning mechanism between the two-stage vibration devices. In particular, there is no structure for physically brushing and cleaning the rhizome and other medicinal materials, which makes it difficult to completely remove the soil attached to the surface of the medicinal materials and affects the cleaning effect.

[0013] This invention adds a fixed baffle at the rear end of the first vibration separation device, forming a material discharge channel together with it. Below this channel are a first brush roller and a second brush roller arranged horizontally, forming a brushing channel for continuously brushing and cleaning the passing Salvia miltiorrhiza root and rhizome medicinal materials. The two brush rollers are driven to rotate by a drive mechanism, achieving active, continuous, and stable brushing operations. The brushed medicinal materials continue to fall and are received by the second vibration separation device below for subsequent separation processing.

[0014] Preferably, the first brush roller is disposed in front of the second brush roller, the second brush roller is higher than the first brush roller, and an inclined brush material channel is formed between the first brush roller and the second brush roller.

[0015] The first brush roller is positioned in front of the second brush roller, with the height of the second brush roller being higher than that of the first brush roller. This creates an inclined, extending brushing channel between the two brush rollers, allowing the root and rhizome medicinal materials to move along the inclined direction under the influence of gravity and achieve a more thorough cleaning process under the action of the brushes.

[0016] Preferably, the air outlet has a strip-shaped opening structure extending along the axial direction of the connecting beam, and the connecting beam has an air outlet nozzle extending radially outward at the corresponding air outlet position;

[0017] This utility model optimizes the structure and arrangement of the air outlet, designing it as a strip-shaped opening structure extending along the axial direction of the connecting beam, and setting radially outward-extending air nozzles at the corresponding positions of the air outlet. This not only increases the air outlet coverage area but also accurately guides the airflow direction, improving the efficiency of airflow in purging root and stem medicinal materials on the conveying surface.

[0018] Preferably, the air outlet includes a base and an extension, the base is fixedly connected to the outer peripheral wall of the connecting beam, the extension extends outward from the base along the radial direction of the connecting beam, and the channel of the air outlet gradually narrows along the airflow ejection direction.

[0019] The nozzle's orifice gradually narrows along the spray direction, forming a conical throttling effect to concentrate and accelerate the airflow, thereby increasing the jet speed and impact force, and enhancing the ability to peel away soil from the surface of the root and stem medicinal materials.

[0020] Preferably, both the first vibration separation device and the second vibration separation device include a hollow conveyor belt formed by hinged mesh bars, a plurality of support wheels for supporting the hollow conveyor belt, and a drive wheel for driving the hollow conveyor belt to run, wherein the drive wheel is connected to the power device for transmission.

[0021] By adopting an articulated perforated conveyor belt, the flexibility and adaptability of the conveyor belt are enhanced, which can better adapt to the irregular shape and movement of root and rhizome medicinal materials, reduce material jamming, and allow soil to pass through the conveyor belt smoothly and fall to the ground in time, further improving the separation efficiency and the cleaning effect of the medicinal materials.

[0022] Preferably, the air outlet of at least one connecting beam above the first vibration separation device faces the brushing channel below the hollow conveyor belt, and the brushing channel extends at an angle.

[0023] Airflow is directed along the brushing channel, which can effectively sweep the surface of the root and stem herbs in the brushing channel, help to peel off the attached soil and impurities, and prevent soil from accumulating and clogging the channel. This structure, together with the inclined brushing channel, realizes the coordinated cleaning of airflow and brush roller, significantly improves the cleaning efficiency of herbs, and enhances the separation effect and continuous operation capability of the whole machine.

[0024] Preferably, the air outlet direction forms an angle of 30° to 60° with the material conveying direction on the first vibration separation device;

[0025] This design differs from traditional vertical or parallel airflow purging methods. It allows the airflow to have a certain tangential component, which effectively promotes the removal of soil adhering to the surface of root and rhizome medicinal materials. It can also push soil and impurities along the conveying direction, avoiding accumulation and blockage caused by headwinds, thus significantly improving the purging effect and overall cleaning efficiency.

[0026] Preferably, the grid bars of the first vibration separation device are provided with a plurality of slip-limiting protrusions, which protrude radially outward along the hollow conveyor belt;

[0027] The anti-slip ridges can enhance the friction between root and rhizome medicinal materials and the conveyor belt, effectively preventing the medicinal materials from slipping or rolling back during the conveying process, and ensuring that the medicinal materials are transported stably and smoothly along the conveyor belt.

[0028] Preferably, the blower device includes two sets of blowers mounted on the frame at both ends of the connecting beam along the axial direction, and an air supply pipeline connecting the blowers to the inner cavity of the connecting beam;

[0029] The blower device of this utility model is set on the frame at both ends of the connecting beam along the axial direction, and is configured as two sets of blowers, which are connected to the inner cavity of the connecting beam through air supply pipelines. This design is different from the traditional single air source or local blower structure, and realizes multi-point airflow input to ensure uniform airflow distribution in the inner cavity of the connecting beam.

[0030] The coordinated operation of two sets of blowers provides a stable and powerful airflow, enabling continuous sweeping of the conveying surface of the first vibration separation device, significantly improving the removal effect of soil and impurities. At the same time, the reasonable design of the air supply pipeline ensures the efficiency and uniformity of airflow delivery, avoiding dead zones and air pressure loss.

[0031] The beneficial effects of this utility model are as follows:

[0032] 1. By arranging a hollow tubular connecting beam above the first vibration separation device and connecting its inner cavity to the blower on the frame, the directional airflow blowing along the conveying surface can quickly peel off the loose soil and fine impurities on the surface of Salvia miltiorrhiza root and rhizome medicinal materials while vibrating and separating, greatly improving the soil removal rate and primary cleaning effect.

[0033] 2. An inclined brushing channel composed of the first and second brush rollers is added between the two-stage vibration separation device, and a fixed baffle guides the material to fall, so as to realize continuous physical brushing of the medicinal materials; it can not only remove the firmly attached soil, but also prevent the residue left during secondary vibration, and improve the overall cleaning depth.

[0034] 3. The air outlet is designed as a strip-shaped opening extending along the axial direction of the connecting beam and equipped with a radial air outlet. The air outlet direction is at a certain angle to the conveying direction. The airflow provides both a tangential component to help the soil fall and a lateral component to prevent backwind accumulation. The synergistic effect of the airflow and the brush roller effectively inhibits the accumulation of soil in the brushing channel and ensures the stability of continuous operation.

[0035] 4. The air outlet channel gradually narrows from the outside to the inside, forming a cone-shaped structure, which concentrates and accelerates the airflow, significantly improving the jet speed and impact force, and more thoroughly peeling away the stubborn dirt on the surface of the medicinal materials.

[0036] 5. The articulated hollow grid conveyor belt ensures the flexibility of the conveyor belt and its adaptability to irregular medicinal materials, while also allowing soil to penetrate and fall off smoothly; the outer edge of the grid is provided with a limiting slip ridge, which can enhance the friction between the medicinal materials and the conveyor belt, prevent slippage and backtracking, and ensure a smooth and reliable conveying process.

[0037] 6. The blower device consists of two sets of blowers and their air supply pipelines distributed at both ends of the connecting beam. It can realize multi-point airflow input and uniform distribution, avoid dead corners and air pressure loss, and ensure the persistence and stability of airflow-assisted cleaning.

[0038] 7. The connecting beam, air outlet, brush roller and other components adopt a detachable modular structure, which is convenient for on-site cleaning, maintenance and replacement; at the same time, the airflow intensity and brush roller spacing can be flexibly adjusted according to different operation needs, which can adapt to the harvesting and cleaning operations of various root and rhizome medicinal materials. Attached Figure Description

[0039] The accompanying drawings, which are provided to further illustrate the embodiments of the present invention and constitute a part of the present invention, do not constitute a limitation thereof.

[0040] Figure 1 This is a schematic diagram of one side of the structure of this utility model;

[0041] Figure 2 This is a schematic diagram of the other side of the structure of this utility model;

[0042] Figure 3 This is a top view of the present invention;

[0043] Figure 4 for Figure 3 Cross-sectional view along the BB direction;

[0044] Figure 5 for Figure 4 Enlarged structural diagram of region A in the middle;

[0045] Figure 6 This is a schematic diagram of the connecting beam in this utility model.

[0046] Among them, 1-frame, 2-first vibration separation device, 3-second vibration separation device, 4-collection device, 5-power device, 6-connecting beam, 7-blowing device, 8-air outlet, 9-baffle, 10-material discharge channel, 11-first brush roller, 12-second brush roller, 13-brushing channel, 14-drive mechanism, 15-air outlet, 16-grid, 17-perforated conveyor belt, 18-support wheel, 19-drive wheel, 20-limiting slip ridge, 21-walking mechanism, 22-digging device. Detailed Implementation

[0047] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of this utility model and the features within them can be combined with each other.

[0048] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0049] Example 1

[0050] See Figures 1 to 5 A walking-type harvester for Salvia miltiorrhiza rhizomes includes a frame 1, a walking mechanism 21 set below the frame 1, a digging device 22 set on the frame 1, a first vibration separation device 2, a second vibration separation device 3, a collecting device 4, and a power device 5 for driving the first vibration separation device 2 and the second vibration separation device 3.

[0051] The digging device 22, the first vibration separation device 2, the second vibration separation device 3, the collecting device 4, and the power device 5 for driving the first vibration separation device 2 and the second vibration separation device 3 are all existing technologies. For example, CN117280935A discloses a vibratory root and tuber harvester with adjustable digging depth. The digging mechanism in that patent can be used as the digging device 22 in this application. The positional relationship between the first vibration separation device 2 and the second vibration separation device 3 is disclosed in CN110366927A, a hilly potato harvester. It is only necessary to ensure that the root and tuber medicinal materials dug by the digging device 22 are carried by the front end of the first vibration separation device 2. The root and tuber medicinal materials transferred to the end of the second vibration separation device 3 fall into the collecting device 4. The collecting device 4 can be an upward-opening hopper, cargo bin, etc., which will not be elaborated here. The walking mechanism 21 can walk under the drive of the power device or under the traction of other devices such as tractors.

[0052] The frame 1 includes several transversely extending connecting beams 6, which are arranged transversely and located above the first vibration separation device 2. The two ends of the connecting beams 6 are respectively connected to the frame 1 on both sides of the first vibration separation device 2, thereby enhancing the overall structural stability of the frame 1.

[0053] In addition to enhancing the overall structural stability of the frame 1, the connecting beam 6 is a hollow tubular structure. The inner cavity of the connecting beam 6 is connected to the blower 7 provided on the frame 1. The outer peripheral wall of the connecting beam 6 is provided with an air outlet 8 that connects to the inner cavity of the connecting beam 6. The air outlet 8 is arranged facing the conveying surface of the first vibration separation device 2. The air outlet 8 forms an angle of 30° to 60° with the material conveying direction on the first vibration separation device 2.

[0054] The blower device 7 is used to deliver high-pressure airflow into the inner cavity of the connecting beam 6. In this embodiment, the blower device 7 includes two sets of blowers installed on the frame 1 at both ends of the connecting beam 6 in the axial direction, and an air supply pipeline connecting the blowers and the inner cavity of the connecting beam 6.

[0055] The high-pressure airflow from the air outlet 8 is used to loosen the soil adhering to the surface of the root and stem medicinal materials on the first vibration separation device 2, and separate them under the vibration of the first vibration separation device 2.

[0056] Example 2

[0057] Based on the above embodiment 1, a baffle 9 extending laterally along the end of the first vibration separation device 2 is provided at the rear end of the first vibration separation device 2. The baffle 9 spans the first vibration separation device 2, and its two axial ends are respectively fixedly connected to the frame 1. A material discharge channel 10 is formed between the front end face of the baffle 9 and the end of the first vibration separation device 2.

[0058] Below the material feeding channel 10, there are horizontally extending first brush roller 11 and second brush roller 12. The two ends of the first brush roller 11 and the second brush roller 12 are respectively supported on the frame 1. In this embodiment, the axial direction of the first brush roller 11 and the second brush roller 12 is parallel to the axial direction of the baffle 9. A brushing channel 13 is formed between the first brush roller 11 and the second brush roller 12. The first brush roller 11 and the second brush roller 12 are driven to rotate by a drive mechanism 14. The drive mechanism 14 can be a drive motor or other drive device, or a gear set or other transmission device for transmitting power to the power device 5. The front end of the second vibration separation device 3 is located below the brushing channel 13. In this embodiment, the first brush roller 11 is located in front of the second brush roller 12, and the height of the second brush roller 12 is higher than that of the first brush roller 11. An inclined brushing channel 13 is formed between the first brush roller 11 and the second brush roller 12.

[0059] The root and rhizome Chinese medicinal materials conveyed to the end of the first vibration separation device 2 fall into the material drop channel 10 formed between the front end of the baffle 9 and the end of the first vibration separation device 2 under the action of gravity. After passing through the material drop channel 10, they enter the brush channel 13 and are brushed away with dirt by the first brush roller 11 and the second brush roller 12.

[0060] Example 3

[0061] Based on the above embodiment 1, the air outlet 8 has a strip-shaped opening structure extending along the axial direction of the connecting beam 6. The connecting beam 6 is provided with an air nozzle 15 extending radially outward at the corresponding position of the air outlet 8. The air nozzle 15 includes a base and an extension. The base of the air nozzle 15 is arranged along the periphery of the air outlet 8 in a frame shape around the air outlet 8 and is fixedly connected to the outer peripheral wall of the connecting beam 6. The extension extends radially outward from the base along the connecting beam 6. Preferably, the cross-section of the air nozzle 15 gradually narrows along the airflow ejection direction to increase the airflow velocity and enhance the blowing effect, thereby facilitating the effective removal of residual impurities or attached soil on the screen surface and improving the cleaning ability and separation efficiency of the vibration separation device.

[0062] Example 4

[0063] The first vibration separation device 2 and the second vibration separation device 3 both include a hollow conveyor belt 17 formed by hinged mesh bars 16, a plurality of support wheels 18 for supporting the hollow conveyor belt 17, and a drive wheel 19 for driving the hollow conveyor belt 17 to run. The drive wheel 19 is connected to the power device 5 in a transmission.

[0064] The first vibration separation device 2 has several anti-slip protrusions 20 on the grid bar 16. The anti-slip protrusions 20 protrude outward along the radial direction of the hollow conveyor belt 17 to enhance the anti-slip effect on root and rhizome medicinal materials and prevent the medicinal materials from sliding during the transportation process, especially under the action of air outlet 8.

[0065] At least one connecting beam 6 above the first vibration separation device 2 is provided with an air outlet 8 facing the lower part of the hollow conveyor belt 17. The air outlet 8 faces the brushing channel 13 located below the hollow conveyor belt 17, and the brushing channel 13 extends in an inclined direction.

[0066] The working principle of this utility model is as follows:

[0067] After the excavation device 22 digs out the Salvia miltiorrhiza rhizome-type Chinese medicinal materials from the soil, it is sent to the first vibration separation device 2. The power device 5 drives the perforated conveyor belt 17 to rotate and vibrate, so that the medicinal materials are initially separated from large pieces of soil. At the same time, the blower device 7 delivers high-pressure airflow into the inner cavity of the connecting beam 6. The airflow is sprayed out through the strip-shaped air outlet 8 and the air nozzle 15, acting on the surface of the conveyor belt at an angle of 30° to 60°, loosening and peeling off the residual soil. After the initial vibration and blowing treatment, the medicinal materials fall through the material drop channel 10 formed between the baffle 9 and the end of the vibration separation device 2, and enter the... In the inclined brushing channel 13 composed of the first brush roller 11 and the second brush roller 12, the brush rollers rotate to perform a secondary cleaning of the surface of the medicinal materials, removing stubborn dirt and impurities. Subsequently, the cleaned medicinal materials are introduced into the second vibration separation device 3, where fine impurities are separated by the vibration of the device and the perforated conveyor belt 17, and finally transported to the collection device 4 for recycling. During this process, the slip-limiting protrusions 20 on the grid 16 play a shoveling and slip-limiting role on the medicinal materials under the action of vibration and airflow, preventing the medicinal materials from slipping excessively and ensuring a stable and consistent separation and cleaning effect.

[0068] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0069] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A walking-type harvester for Salvia miltiorrhiza rhizomes, comprising a frame (1), a walking mechanism (21) disposed below the frame (1), a digging device (22) disposed on the frame (1), a first vibration separation device (2), a second vibration separation device (3), a collecting device (4), and a power device (5) for driving the first vibration separation device (2) and the second vibration separation device (3), characterized in that: The frame (1) includes several transversely extending connecting beams (6), which are located above the first vibration separation device (2). The connecting beams (6) have a hollow tubular structure. The inner cavity of the connecting beams (6) is connected to the blower (7) provided on the frame (1). The outer peripheral wall of the connecting beams (6) is provided with an air outlet (8) that connects to the inner cavity of the connecting beams (6). The air outlet (8) is located facing the conveying surface of the first vibration separation device (2).

2. The walking type Chinese medicine of salvia miltiorrhiza rhizome harvesting machine according to claim 1, characterized in that: The first vibration separation device (2) has a horizontally extending baffle (9) at the rear end. The baffle (9) is fixedly connected to the frame (1). A material drop channel (10) is formed between the front end face of the baffle (9) and the end of the first vibration separation device (2). Below the material discharge channel (10) are a first brush roller (11) and a second brush roller (12) extending laterally. The first brush roller (11) and the second brush roller (12) are supported on the frame (1) at both ends respectively. A brushing channel (13) is formed between the first brush roller (11) and the second brush roller (12). The first brush roller (11) and the second brush roller (12) are driven to rotate by a drive mechanism (14). The front end of the second vibration separation device (3) is located below the brushing channel (13).

3. The walking type Chinese medicine of salvia miltiorrhiza rhizome harvesting machine of claim 2, characterized in that: The first brush roller (11) is positioned in front of the second brush roller (12), and the height of the second brush roller (12) is higher than that of the first brush roller (11). An inclined brush channel (13) is formed between the first brush roller (11) and the second brush roller (12).

4. The walking type Chinese medicine of salvia miltiorrhiza rhizome harvesting machine of claim 1, wherein: The air outlet (8) is a strip-shaped opening structure extending along the axial direction of the connecting beam (6), and the connecting beam (6) is provided with an air nozzle (15) extending radially outward at the corresponding position of the air outlet (8).

5. The walking-type Salvia miltiorrhiza rhizome harvester as described in claim 4, characterized in that: The air outlet (15) includes a base and an extension. The base is fixedly connected to the outer peripheral wall of the connecting beam (6). The extension extends outward from the base along the radial direction of the connecting beam (6). The channel of the air outlet (15) gradually narrows along the airflow ejection direction.

6. The walking-type Salvia miltiorrhiza rhizome harvester as described in claim 2, characterized in that: The first vibration separation device (2) and the second vibration separation device (3) both include a hollow conveyor belt (17) formed by hinged mesh bars (16), a number of support wheels (18) for supporting the hollow conveyor belt (17), and a drive wheel (19) for driving the hollow conveyor belt (17) to run. The drive wheel (19) is connected to the power device (5) for transmission.

7. The walking-type Salvia miltiorrhiza rhizome harvester as described in claim 6, characterized in that: The air outlet (8) of at least one connecting beam (6) above the first vibration separation device (2) faces the brushing channel (13) below the hollow conveyor belt (17), and the brushing channel (13) extends obliquely.

8. The walking-type harvester for Salvia miltiorrhiza rhizomes and other Chinese medicinal herbs as described in claim 4, characterized in that: The air outlet (8) forms an angle of 30° to 60° with the material conveying direction on the first vibration separation device (2).

9. The walking-type Salvia miltiorrhiza rhizome harvester as described in claim 6, characterized in that: The first vibration separation device (2) has several limiting ridges (20) on its grid (16), and the limiting ridges (20) protrude radially outward along the hollow conveyor belt (17).

10. The walking-type harvester for Salvia miltiorrhiza rhizomes and other Chinese medicinal herbs as described in claim 1, characterized in that: The blower device (7) includes two sets of blowers installed on the frame (1) at both ends of the connecting beam (6) along the axial direction, and an air supply pipeline connecting the blowers to the inner cavity of the connecting beam (6).

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