A tractor-drawn cistanche harvester

Abstract

The application discloses a traction type cistanche harvesting machine and relates to the technical field of agricultural mechanical equipment. The traction type cistanche harvesting machine comprises a frame, a depth limiting mechanism, a ditching mechanism, a soil digging plough, a conveying and storing mechanism and a traction frame. The traction frame is arranged at one end of the frame. The depth limiting mechanism is installed at the other end of the frame and is used for adjusting the digging depth of the whole machine and supporting operation. The ditching mechanism is arranged at the front part of the frame and is driven to rotate by power, is used for longitudinally cutting and single-side evertedly cutting sand soil, and forms an operation ditch. The soil digging plough is fixedly installed at the middle part of the frame and is located at the rear side of the ditching mechanism and is used for cutting from the inside of cistanche. The conveying and storing mechanism is installed on the frame and is connected to the output end of the soil digging plough. The whole machine is connected to a traction power machine through the traction frame on the frame. The device effectively improves the prerequisite of cistanche harvesting, greatly avoids the damage of cistanche in the cistanche harvesting process, and realizes precise, efficient and low-damage harvesting operation.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and equipment technology, specifically to a tractor-driven Cistanche deserticola harvester. Background Technology

[0002] Cistanche deserticola is a unique and valuable psammophytic medicinal herb in my country. It parasitizes the roots of psammophytic shrubs such as Haloxylon ammodendron and Tamarix chinensis, possessing high medicinal and economic value and being widely used in medicine, health products, and cosmetics. In recent years, with the deepening of the strategy of integrating ecological restoration with the development of the desert industry, the area of ​​large-scale artificial cultivation of Cistanche deserticola has rapidly increased in Xinjiang, Inner Mongolia, Gansu, Ningxia, and other regions, forming a pillar industry with local characteristics.

[0003] However, in stark contrast to the rapid growth in planting scale, the level of mechanization in the harvesting of Cistanche deserticola is seriously lagging behind. Harvesting work is still mainly done manually, and the current overall mechanization rate of the industry is only about 20%.

[0004] The existing mechanized harvesting equipment has significant shortcomings in practical applications: First, some models use a soil-turning shovel to turn out Cistanche deserticola along with the host plant roots. Although this achieves mechanized soil removal, it results in high soil turning resistance, high energy consumption, and easy damage to the host plant roots. Second, some models do not dig deep enough, making it difficult to harvest the deep fleshy stems completely, resulting in a high rate of stem breakage and damage. Third, most models lack specialized design for the flow characteristics of sandy soil, leading to soil clogging and blockage during operation. This results in continuously increasing digging resistance, decreased transport efficiency, and unsatisfactory separation of sand and Cistanche deserticola. After harvesting, a large amount of sand still adheres to the surface of the Cistanche deserticola, requiring an additional manual sand removal step.

[0005] Therefore, it is necessary to develop a tractor-driven Cistanche deserticola harvester to solve the above problems. Summary of the Invention

[0006] This invention provides a towed Cistanche deserticola harvester, which aims to solve the technical problems of high labor intensity, low efficiency, and high damage rate in the current Cistanche deserticola harvesting, as well as the difficulty of efficient and low-damage mechanized harvesting due to the easy damage of existing machinery to the medicinal material and host, poor adaptability to sandy land, and poor separation of sand and soil.

[0007] This invention provides a towed Cistanche deserticola harvester, comprising: a frame, a depth limiting mechanism, a ditching mechanism, a digging plow, a conveying and storage mechanism, and a towing frame; The traction frame is located at one end of the frame; The depth limiting mechanism is installed at the other end of the frame and is used to adjust the digging depth of the whole machine and support the operation; The trenching mechanism is located at the front of the frame and is driven to rotate by a power source. It is used to longitudinally cut the sand and soil and turn it outward on one side to form a working trench. The digging plow is fixedly installed in the middle of the frame and located behind the trenching mechanism. It is used to cut from the inside of the Cistanche deserticola, so that the Cistanche deserticola is removed from the soil and falls into the trench. The conveying and storage mechanism is installed on the frame and receives the output end of the digging plow shovel. It is used to separate, convey, collect and store Cistanche deserticola from sand and soil. The entire machine is connected and linked to the traction power machinery via the traction frame on the frame.

[0008] Furthermore, the depth limiting mechanism includes a depth limiting wheel body, a depth limiting wheel frame, a depth adjustment mechanism, and a fixed frame. The depth limiting wheel body is connected to the depth limiting wheel frame, the depth limiting wheel frame is connected to the machine frame through the fixed frame, and one end of the depth adjustment mechanism is connected to the machine frame and the other end is connected to the fixed frame.

[0009] Furthermore, the conveying and storage mechanism includes a primary flexible conveying device, a secondary flexible conveying device, a tertiary flexible conveying device, a storage bin, and a scraper. The scraper is disposed between the primary flexible conveying device and the digging plow and is fixed to the frame. The primary, secondary, and tertiary flexible conveying devices are sequentially installed on the frame, and each conveying device is connected to a hydraulic motor. All hydraulic motors are fixed to the outside of the frame.

[0010] Furthermore, the digging plow includes a digging plow, a plow arm, and a plow support plate. The digging plow is fixed to one end of the plow arm, and the end of the plow arm away from the digging plow is connected to the frame. The plow support plate is welded to the lower end of the plow arm.

[0011] Furthermore, the trenching mechanism includes a soil guide cover, a soil guide cover fixing frame, a main drive shaft, a trenching wheel disc, a soil guide cover soil guide groove, a trenching wheel main rotary cutter, a trenching wheel shaped rotary cutter, and a trenching wheel side rotary cutter. The soil guide cover is welded to the soil guide cover fixing frame, and the soil guide groove of the soil guide cover is welded to the rear side of the soil guide cover; Multiple grooving wheel main rotary cutters are welded to the outer side of the grooving wheel disc, and two grooving wheel side rotary cutters and two grooving wheel shaping rotary cutters are welded to the left side in sequence through the main drive shaft; The main drive shaft connects the soil guide cover fixing frame, the trenching wheel disc, and the power transmission device of the traction power machinery.

[0012] Furthermore, there are two depth limiting mechanisms, which are symmetrically installed at the rear of the machine; the depth adjustment mechanism is a small hydraulic cylinder used to adjust the working depth of the machine in a small range.

[0013] Furthermore, the digging plow is welded and fixed to the front end of the plow arm; the plow support plate is welded to the lower end of the plow arm to support and stabilize the plow arm during operation.

[0014] Furthermore, 12 main rotary cutters of the grooving wheel are welded to the outer side of the grooving wheel disc.

[0015] Furthermore, the first-stage flexible conveying device, the second-stage flexible conveying device, and the third-stage flexible conveying device are all flexible conveyor belt conveying devices; the flexible conveyor belts on the first-stage flexible conveying device, the second-stage flexible conveying device, and the third-stage flexible conveying device are all equipped with screen holes to allow sand and soil to fall off during the conveying process and to retain Cistanche deserticola.

[0016] The beneficial effects of this invention are: 1. This invention provides a Cistanche deserticola harvester that can be matched with existing agricultural power machinery, adapt to sandy working environments, and has both efficient digging and low-damage harvesting functions, so as to fill the technical gap in special harvesting equipment and meet the urgent needs of industrial development.

[0017] 2. The device of the present invention effectively improves the prerequisites for harvesting Cistanche deserticola, greatly avoids damage to Cistanche deserticola during the harvesting process, and realizes precise, efficient and low-damage harvesting operations. It solves the problems of high labor intensity and low efficiency of manual labor in the prior art, as well as the destructiveness and poor applicability of existing agricultural machinery. Attached Figure Description

[0018] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the depth limiting mechanism in this invention; Figure 3 This is a schematic diagram of the conveying and storage mechanism in this invention.

[0020] Figure 4 This is a schematic diagram of the structure of the digging plow in this invention.

[0021] Figure 5 This is a schematic diagram of the trenching mechanism in this invention.

[0022] In the diagram: 1. Depth limiting mechanism; 101. Depth adjustment mechanism; 102. Fixing frame; 103. Depth limiting wheel frame; 104. Depth limiting wheel body; 2. Conveying and storage mechanism; 201. Hydraulic motor; 202. Primary flexible conveying device; 203. Secondary flexible conveying device; 204. Tertiary flexible conveying device; 205. Storage box; 206. Scraper; 3. Frame; 4. Digging plow; 401. Digging plow; 402. Plow arm; 403. Plow support plate; 5. Trenching mechanism; 501. Soil guide cover; 502. Soil guide cover fixing frame; 503. Main drive shaft; 504. Trenching wheel disc; 505. Soil guide cover guide groove; 506. Trenching wheel main rotary cutter; 507. Trenching wheel side rotary cutter; 508. Trenching wheel shaping rotary cutter; 6. Traction frame. Detailed Implementation

[0023] The following are specific embodiments of the present invention described in conjunction with the accompanying drawings, further illustrating the technical solutions of the present invention. However, the present invention is not limited to these embodiments. Specific details, such as particular configurations and components, are provided in the following description merely to aid in a comprehensive understanding of the embodiments of the present invention. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0025] like Figure 1 A specific embodiment of a towed Cistanche deserticola harvester is shown, comprising: a frame 3, a depth limiting mechanism 1, a ditching mechanism 5, a digging plow 4, a conveying and storage mechanism 2, and a towing frame 6; the towing frame 6 is located at one end of the frame 3 for connection with tractor or other traction power machinery; the depth limiting mechanism 1 is installed at the other end of the frame 3 for adjusting the overall digging depth and supporting operation; the ditching mechanism 5 is located at the front of the frame 3 and is driven to rotate for longitudinal cutting of sand and soil and unilateral outward turning to form an inverted trapezoidal working trench; the digging plow 4 is fixedly installed in the middle of the frame, located behind the ditching mechanism 5, for cutting from the inside of the Cistanche deserticola, causing the Cistanche deserticola to detach from the soil and fall into the trench; the conveying and storage mechanism 2 is installed on the frame 3 and receives the output end of the digging plow 4 for separating, conveying, collecting, and storing the Cistanche deserticola from the sand and soil; the entire machine is connected and linked with traction power machinery via the towing frame 6 on the frame 3, with the tractor providing walking power and hydraulic power.

[0026] Specifically, the device of this invention effectively improves the prerequisites for harvesting Cistanche deserticola, greatly avoids damage to Cistanche deserticola during the harvesting process, and realizes precise, efficient and low-damage harvesting operations. It solves the problems of high labor intensity and low efficiency in existing technologies, as well as the destructiveness and poor applicability of existing agricultural machinery.

[0027] like Figure 2 As shown, the depth limiting mechanism 1 includes a depth limiting wheel body 104, a depth limiting wheel frame 103, a depth adjustment mechanism 101, and a fixed frame 102. The depth limiting wheel body 104 is rotatably connected to the lower end of the depth limiting wheel frame 103 via bearings. The upper end of the depth limiting wheel frame 103 is hinged to the fixed frame 102 via a pin, and the fixed frame 102 is fixedly connected to the upper part of the frame 3 via bolts. The depth adjustment mechanism 101 is a small hydraulic cylinder, with its cylinder body hinged to the longitudinal beam of the frame 3 via a pin, and its piston rod end hinged to the upper part of the fixed frame 102 via a pin.

[0028] In a preferred embodiment, two depth-limiting mechanisms 1 are symmetrically installed on the left and right sides of the rear end of the machine to ensure stability during operation. The depth adjustment mechanism 101 is a small hydraulic cylinder used for small-amplitude adjustment of the machine's working depth. By controlling the extension and retraction of the small hydraulic cylinder, the depth-limiting wheel frame 103 can be rotated around the hinge point on the fixed frame 102, thereby adjusting the angle of the depth-limiting wheel frame 103 relative to the frame 3, achieving small-amplitude precise adjustment of the machine's working depth, which can meet the harvesting needs of Cistanche deserticola at different growth depths.

[0029] like Figure 3 As shown, the conveying and storage mechanism 2 includes a primary flexible conveying device 202, a secondary flexible conveying device 203, a tertiary flexible conveying device 204, a storage bin 205, and a scraper 206. The scraper 206 is disposed between the primary flexible conveying device 202 and the digging plow 4 and fixed to the frame 3. The primary flexible conveying device 202, the secondary flexible conveying device 203, and the tertiary flexible conveying device 204 are sequentially installed on the frame 3, and each conveying device is connected to a hydraulic motor 201. The hydraulic motors 201 are all fixed to the outside of the frame 3.

[0030] Specifically, the primary flexible conveyor 202, secondary flexible conveyor 203, and tertiary flexible conveyor 204 are all flexible conveyor belt conveyors, sequentially and obliquely mounted on the frame 3. Each conveyor's drive roller is connected to a hydraulic motor 201, which is bolted to the outside of the frame 3. The feed end of the primary flexible conveyor 202 is located above the scraper blade 206, and its discharge end is located above the feed end of the secondary flexible conveyor 203. The discharge end of the secondary flexible conveyor 203 is located above the feed end of the tertiary flexible conveyor 204. The discharge end of the tertiary flexible conveyor 204 is located above the storage bin 205.

[0031] In a preferred embodiment, the primary flexible conveying device 202, the secondary flexible conveying device 203, and the tertiary flexible conveying device 204 are all flexible conveyor belt conveying devices; the flexible conveyor belts on the primary flexible conveying device 202, the secondary flexible conveying device 203, and the tertiary flexible conveying device 204 are all equipped with screen holes. During the conveying process, smaller sand particles can pass through the screen holes and fall naturally back into the field, while larger Cistanche deserticola particles are retained on the conveyor belt, thereby achieving automatic separation of Cistanche deserticola and sand.

[0032] like Figure 4 As shown, the digging plow 4 includes a digging plow 401, a plow arm 402, and a plow support plate 403. The digging plow 401 is fixed to one end of the plow arm 402, and the digging plow 401 is arc-shaped with a cutting edge angle of 45°. The end of the plow arm 402 away from the digging plow 401 is connected to the frame 3, and the plow support plate 403 is welded to the lower end of the plow arm 402.

[0033] Specifically, the digging plow 401 is welded and fixed to the front end of the plow arm 402; the plow support plate 403 is welded to the lower end of the plow arm 402 to support and stabilize the plow arm 402 during operation.

[0034] Specifically, the lower surface of the plow plate 403 is curved and tangent to the ground to support the plow arm 402 during operation, enabling soil cutting while preventing the plow arm 402 from deforming due to excessive force. The digging plow 4 adopts a column-type curved handle design, and the cutting edge angle of the digging plow 401 effectively improves the cutting performance and drag reduction of the plow 401, turning over the Cistanche deserticola growth area rather than breaking up the soil clods.

[0035] like Figure 5As shown, the trenching mechanism 5 includes a soil guide cover 501, a soil guide cover fixing frame 502, a main drive shaft 503, a trenching wheel disc 504, a soil guide cover soil guide groove 505, a trenching wheel main rotary cutter 506, a trenching wheel shaping rotary cutter 508, and a trenching wheel side rotary cutter 507. The soil guide cover 501 is welded to the soil guide cover fixing frame 502, and the soil guide cover soil guide groove 505 is welded to the rear side of the soil guide cover 501. Multiple trenching wheel main rotary cutters 506 are welded to the outer side of the trenching wheel disc 504, and two trenching wheel side rotary cutters 507 and two trenching wheel shaping rotary cutters 508 are sequentially welded to the left side through the main drive shaft 503. The main drive shaft 503 connects the soil guide cover fixing frame 502, the trenching wheel disc 504, and the power transmission device of the traction power machinery.

[0036] Specifically, 12 main rotary cutters 506 of the grooving wheel are welded to the outer side of the grooving wheel disc 504.

[0037] The working principle of the whole machine of this invention: When the towed Cistanche harvester of the present invention is in use, it is connected to the tractor via the towing frame 6. The rear output shaft of the tractor drives the hydraulic pump to operate, providing power to the hydraulic system of the whole machine. The hydraulic system provides pressurized oil to the small hydraulic cylinder of the depth adjustment mechanism 101 of the depth limiting mechanism 1 and the hydraulic motor 201 of the conveying and storage mechanism 2.

[0038] Before operation, the operator controls the extension and retraction of the small hydraulic cylinder of the depth limiting mechanism 1 through the hydraulic control valve in the tractor cab, and adjusts the height of the depth limiting wheel 104, thereby adjusting the digging depth of the whole machine to be compatible with the growth depth of Cistanche deserticola.

[0039] During operation, the tractor pulls the harvester forward, while the tractor's power take-off shaft drives the furrowing wheel disc 504 to rotate at high speed via the main drive shaft 503. The main rotary cutter 506 of the furrowing wheel first cuts into the soil, longitudinally loosening the soil in the furrowing area; the side rotary cutters 507 and the shaping rotary cutters 508 of the furrowing wheel then cut the side walls and bottom of the furrow, forming a regular inverted trapezoidal furrow. Under the combined action of the centrifugal force of the rotary cutters and the tractor's traction force, the loosened soil is thrown into the soil guide cover 501, flows along the arc-shaped inner wall of the soil guide cover 501 into the soil guide groove 505, and finally turns outward to the field on one side through the soil guide groove 505, providing ample working space for the subsequent harvesting of Cistanche deserticola.

[0040] While the trenching mechanism 5 completes trenching on one side, the digging plow 4 moves forward with the whole machine. The digging plow 401 precisely cuts into the soil from the inside of the Cistanche deserticola growth area, severing the connection between the Cistanche deserticola and the root system of the host plant, and turning the Cistanche deserticola and the surrounding soil sideways to form a Cistanche deserticola-soil mixture. The scraper 206 receives the turned-up mixture and smoothly pushes it to the feed end of the primary flexible conveying device 202 as the whole machine moves.

[0041] After the Cistanche deserticola-soil mixture enters the primary flexible conveyor 202, it is transported upwards by the flexible conveyor belt under the drive of the hydraulic motor 201. During the conveying process, due to the small particle size and light weight of the soil particles, they naturally fall back down through the screen holes of the flexible conveyor belt and flow back to the field through the formed trenches, realizing in-situ backfilling of the soil; while the Cistanche deserticola is left on the conveyor belt and is successively conveyed by the secondary flexible conveyor 203 and the tertiary flexible conveyor 204, finally falling into the storage bin 205 for collection and storage, thus completing the mechanized harvesting of Cistanche deserticola.

[0042] This invention effectively solves the problems of high labor intensity, low efficiency, and easy damage to medicinal materials and host plant roots during the existing Cistanche deserticola harvesting process by using a ditching mechanism 5 for single-sided ditching, a digging plow 4 for precise cutting, and a three-stage flexible conveying device for automatic separation of sand and soil. It achieves precise, efficient, and low-damage mechanized harvesting of Cistanche deserticola. The device has a simple and reasonable structure and is easy to install and maintain.

[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0044] In the description of this invention, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] Those skilled in the art to which this invention pertains may make various modifications or additions to the specific embodiments described, or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A tractor-mounted Cistanche deserticola harvester, characterized in that, include: The frame (3), depth limiting mechanism (1), trenching mechanism (5), digging plow (4), conveying and storage mechanism (2) and traction frame (6); The traction frame (6) is disposed at one end of the frame (3); The depth limiting mechanism (1) is installed at the other end of the frame (3) and is used to adjust the digging depth of the whole machine and support the operation; The trenching mechanism (5) is located at the front of the frame (3) and is driven to rotate by power. It is used to longitudinally cut sand and turn it outward on one side to form a working trench. The digging plow (4) is fixedly installed in the middle of the frame and located behind the trenching mechanism (5). It is used to cut from the inside of the Cistanche deserticola, so that the Cistanche deserticola is removed from the soil and falls into the trench. The conveying and storage mechanism (2) is installed on the frame (3) and receives the output end of the digging plow (4), and is used to separate, convey and collect the Cistanche deserticola from the sand and soil. The whole machine is connected and linked with the traction power machinery through the traction frame (6) on the frame (3).

2. The towed Cistanche deserticola harvester according to claim 1, characterized in that, The depth limiting mechanism (1) includes a depth limiting wheel body (104), a depth limiting wheel frame (103), a depth adjustment mechanism (101), and a fixed frame (102). The depth limiting wheel body (104) is connected to the depth limiting wheel frame (103), and the depth limiting wheel frame (103) is connected to the frame (3) through the fixed frame (102). One end of the depth adjustment mechanism (101) is connected to the frame (3), and the other end is connected to the fixed frame (102).

3. A tractor-driven Cistanche deserticola harvester according to claim 1, characterized in that, The conveying and storage mechanism (2) includes a primary flexible conveying device (202), a secondary flexible conveying device (203), a tertiary flexible conveying device (204), a storage bin (205), and a scraper (206). The scraper (206) is disposed between the primary flexible conveying device (202) and the digging plow (4) and fixed to the frame (3). The primary flexible conveying device (202), the secondary flexible conveying device (203), and the tertiary flexible conveying device (204) are sequentially installed on the frame (3), and each conveying device is connected to a hydraulic motor (201). The hydraulic motors (201) are all fixed to the outside of the frame (3).

4. A towed Cistanche deserticola harvester according to claim 1, characterized in that, The digging plow (4) includes a digging plow (401), a plow arm (402), and a plow plate (403). The digging plow (401) is fixed to one end of the plow arm (402). The end of the plow arm (402) away from the digging plow (401) is connected to the frame (3). The plow plate (403) is welded to the lower end of the plow arm (402).

5. A towed Cistanche deserticola harvester according to claim 1, characterized in that, The trenching mechanism (5) includes a soil guide cover (501), a soil guide cover fixing frame (502), a main drive shaft (503), a trenching wheel disc (504), a soil guide cover soil guide groove (505), a trenching wheel main rotary cutter (506), a trenching wheel shaping rotary cutter (508), and a trenching wheel side rotary cutter (507). The soil guide cover (501) is welded to the soil guide cover fixing frame (502), and the soil guide cover groove (505) is welded to the rear side of the soil guide cover (501); Multiple grooving wheel main rotary cutters (506) are welded to the outer side of the grooving wheel disc (504), and two grooving wheel side rotary cutters (507) and two grooving wheel shaping rotary cutters (508) are welded to the left side in sequence through the main drive shaft (503). The main drive shaft (503) connects the soil guide cover fixing frame (502), the trenching wheel disc (504), and the power transmission device of the traction power machinery.

6. A tractor-driven Cistanche deserticola harvester according to claim 2, characterized in that, The depth limiting mechanism (1) consists of two parts, which are symmetrically installed at the rear of the machine. The depth adjustment mechanism (101) is a small hydraulic cylinder used to adjust the working depth of the machine in a small range.

7. A towed Cistanche deserticola harvester according to claim 4, characterized in that, The digging plow (401) is welded and fixed to the front end of the plow arm (402); the plow plate (403) is welded to the lower end of the plow arm (402) to support and stabilize the plow arm (402) during operation.

8. A towed Cistanche deserticola harvester according to claim 5, characterized in that, The outer side of the grooving wheel disc (504) is welded with 12 grooving wheel main rotary cutters (506).

9. A tractor-driven Cistanche deserticola harvester according to claim 3, characterized in that, The first-level flexible conveying device (202), the second-level flexible conveying device (203), and the third-level flexible conveying device (204) are all flexible conveyor belt conveying devices; the flexible conveyor belts on the first-level flexible conveying device (202), the second-level flexible conveying device (203), and the third-level flexible conveying device (204) are all equipped with screen holes to allow sand and soil to fall off during the conveying process and to retain Cistanche deserticola.

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