Traditional Chinese medicine harvesting machine facilitating soil removal
By designing the conveying components and screening structure of the Chinese medicinal herb harvester, the problem of poor soil removal in existing harvesters has been solved, achieving efficient soil removal and protection of Chinese medicinal herbs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAHRAIN ZUOQI JIURI AGRI MASCH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-14
AI Technical Summary
Existing Chinese medicinal herb harvesters are not effective at removing soil, which leads to a heavy burden on subsequent cleaning processes and may damage the medicinal herbs, reducing their quality.
A harvester for Chinese medicinal herbs that facilitates soil removal was designed. It adopts a combination structure of inclined conveyor components, toothed cylinders, telescopic rods and pressure plates, combined with screening frames and vibratory screening, and utilizes a transmission system to achieve efficient soil removal from Chinese medicinal herbs.
This method allows the soil on the surface of Chinese medicinal herbs to fall off naturally during transportation, improving soil removal efficiency and the quality of harvested Chinese medicinal herbs, protecting the integrity of the herbs, and reducing the burden of subsequent cleaning.
Smart Images

Figure CN224482174U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of Chinese medicinal herb harvesting machines, and more specifically, it relates to a Chinese medicinal herb harvesting machine that facilitates the removal of soil. Background Technology
[0002] In the process of planting Chinese medicinal herbs, after the herbs have matured, they need to be dug up from the planting area. To improve efficiency, harvesters are generally used to dig up the herbs.
[0003] Existing harvesters rely solely on simple screening structures to remove dirt from the surface of Chinese medicinal herbs, resulting in poor removal efficiency and a heavy burden on subsequent cleaning processes. Furthermore, the uneven force applied to the herbs may damage them, reducing their quality. Therefore, this paper studies and improves upon existing structures and shortcomings to provide a Chinese medicinal herb harvester that facilitates dirt removal, aiming to achieve greater practical value. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a Chinese medicinal herb harvester that facilitates the removal of soil, achieved through the following specific technical means:
[0005] A medicinal herb harvester for easy soil removal includes an inclined frame. A conveying assembly is rotatably connected inside the frame. A connecting rod is rotatably connected to the bottom of the frame at its highest point, and a screening frame is rotatably connected to the bottom of the connecting rod. Two curved rods are rotatably connected to both sides of the frame, with the bottom of each set of curved rods rotatably connected to one side of the screening frame. A drive shaft is rotatably connected to the top of the frame via a bearing seat. Fixed discs are mounted at both ends of the drive shaft. Fixed rods are rotatably connected to one side of each set of fixed discs. The top of each set of curved rods is rotatably connected to a corresponding fixed rod. A protective cover is symmetrically installed inside the frame. Toothed cylinders are slidably connected to the inner walls of the protective cover via fixed seats. Telescopic rods are connected to the bottom of each toothed cylinder, and pressure plates are inclinedly installed at the bottom of the two sets of telescopic rods.
[0006] As a preferred technical solution of this utility model, the transmission assembly includes two sets of driven shafts rotatably connected inside the frame, and the height of one set of driven shafts is higher than the height of the other set of driven shafts. Both ends of the two sets of driven shafts are fixedly installed with sprockets, and transmission chains are sleeved on the outer side of the two sets of sprockets on the same side. Multiple sets of multiple transmission rods are fixedly installed between the two sets of transmission chains.
[0007] As a preferred embodiment of this utility model, a dual-axis motor is fixedly installed on the top side of the frame away from the drive shaft. One end of the dual-axis motor is coaxially connected to a synchronous pulley, and a second synchronous pulley is fixedly installed on the outside of the drive shaft. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt. A second protective cover is fixedly installed on one side of the frame. The other end of the dual-axis motor extends into the interior of the second protective cover and is coaxially connected to a drive pulley. One end of the driven shaft at the top extends into the interior of the second protective cover and is fixedly installed with a driven pulley. The driven pulley and the drive pulley are connected by a transmission belt.
[0008] As a preferred embodiment of this utility model, springs are fitted on the outer sides of the telescopic rods, and the two ends of the springs are respectively abutted against the bottom fixing seat and the pressure plate.
[0009] As a preferred embodiment of this utility model, each of the two sets of protective covers is rotatably connected to a fixed shaft inside. A synchronous pulley three is fixedly installed on the outer side of each fixed shaft. Two sets of synchronous pulleys four are fixedly installed on the outer side of the transmission shaft. The synchronous pulleys three and four are connected by a synchronous belt two. A connecting disc is fixedly installed at one end of each of the two sets of fixed shafts. A connecting shaft is installed on the inner sidewall of each of the two sets of protective covers. A half-gear is rotatably connected to the outer side of each connecting shaft, and the half-gear meshes with a toothed cylinder. A waist-shaped groove is formed on one side of each half-gear. A limiting post is fixedly installed on one side of each connecting disc, and the limiting post is slidably connected inside the waist-shaped groove.
[0010] As a preferred technical solution of this utility model, a protective cover three is fixedly installed on the top of the frame, and the synchronous pulley one, synchronous pulley two and synchronous belt one are all arranged inside the protective cover three.
[0011] As a preferred embodiment of this utility model, the bottom of the frame is symmetrically equipped with casters on one side, and the bottom of the frame is inclinedly equipped with a shovel blade on the other side.
[0012] Compared with the prior art, this utility model has the following beneficial effects: The inclined conveying assembly, in conjunction with the shovel, allows the soil on the surface of the medicinal herbs to naturally fall off during transport, achieving initial soil separation. The toothed cylinder, telescopic rod, and pressure plate, along with the synchronous belt, connecting disc, and half-gear, facilitate the downward pressing operation to remove soil from the medicinal herbs, further improving the soil removal effect. The screening frame, through the cooperation of connecting rods, curved rods, and the drive shaft, enables vibration, further screening the medicinal herbs and effectively separating the soil, significantly improving soil removal efficiency and the quality of harvested medicinal herbs. The dual-shaft motor drives the drive shaft and conveying assembly respectively through synchronous belt one and the drive belt, ensuring stable and efficient power transmission, coordinating the work of each component, and improving the overall operating efficiency of the equipment. Simultaneously, synchronous belt two connects synchronous pulley three and synchronous pulley four, realizing transmission control of the toothed cylinder and half-gear, ensuring the precision of the coordination between the pressing action of the pressure plate and the screening vibration. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 1 .
[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of this utility model. Figure 2 .
[0015] Figure 3 This is a partial structural diagram of the present invention. Figure 1 .
[0016] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .
[0017] Figure 5 This is a partial structural diagram of the present invention. Figure 3 .
[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0019] 1. Frame; 2. Conveying assembly; 201. Driven shaft; 202. Sprocket; 203. Drive chain; 204. Conveying rod; 3. Connecting rod; 4. Screening frame; 5. Crank rod; 6. Drive shaft; 7. Fixed plate; 8. Fixed rod; 9. Protective cover one; 10. Toothed cylinder; 11. Telescopic rod; 12. Pressure plate; 13. Dual-axis motor; 14. Synchronous belt one; 15. Protective cover two; 16. Drive belt; 17. Spring; 18. Fixed shaft; 19. Connecting plate; 20. Half gear; 21. Limiting post; 22. Protective cover three; 23. Moving wheel; 24. Shovel; 25. Synchronous belt two. Detailed Implementation
[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Example:
[0024] As attached Figure 1 To be continued Figure 5 As shown:
[0025] This utility model provides a Chinese medicinal herb harvester that facilitates soil removal, comprising an inclined frame 1, a conveying assembly 2 rotatably connected inside the frame 1, a connecting rod 3 rotatably connected to the bottom of the frame 1 at its highest point, and a screening frame 4 rotatably connected to the bottom of the connecting rod 3; two curved rods 5 rotatably connected to both sides of the frame 1, with the bottom of each set of curved rods 5 rotatably connected to one side of the screening frame 4; a drive shaft 6 rotatably connected to the top of the frame 1 via a bearing seat, with fixed discs 7 installed at both ends of the drive shaft 6, and fixed rods 8 rotatably connected to one side of each set of fixed discs 7; and corresponding fixed rods 8 rotatably connected to the top of each set of curved rods 5; symmetrical protective covers 9 are installed inside the frame 1, with toothed cylinders 10 slidably connected to the inner walls of the protective covers 9 via fixed seats, and telescopic rods 11 connected to the bottom of each toothed cylinder 10; pressure plates 12 are inclinedly installed at the bottom of each set of telescopic rods 11.
[0026] The conveying assembly 2 includes two sets of driven shafts 201 rotatably connected inside the frame 1, with one set of driven shafts 201 being higher than the other set. Both ends of the two sets of driven shafts 201 are fixedly mounted with sprockets 202. On the same side, a transmission chain 203 is sleeved on the outer side of both sets of sprockets 202. Multiple sets of multiple conveying rods 204 are fixedly installed between the two sets of transmission chains 203. The two sets of driven shafts 201 with different heights, in conjunction with the sprockets 202, transmission chains 203, and conveying rods 204, make it easier for soil to fall off the surface of the Chinese medicinal materials, enhancing the soil separation effect, while ensuring the continuity and reliability of the conveying process.
[0027] In this design, a dual-axis motor 13 is fixedly installed on the top side of the frame 1 away from the drive shaft 6. One end of the dual-axis motor 13 is coaxially connected to a synchronous pulley 1, and a synchronous pulley 2 is fixedly installed on the outer side of the drive shaft 6. The synchronous pulley 1 and the synchronous pulley 2 are connected by a synchronous belt 14. A protective cover 25 is fixedly installed on one side of the frame 1. The other end of the dual-axis motor 13 extends into the protective cover 25 and is coaxially connected to a drive pulley. One end of the driven shaft 201 at the top extends into the protective cover 25 and is fixedly installed with a driven pulley. The driven pulley and the drive pulley are connected by a transmission belt 16, which realizes efficient power distribution and transmission, enabling the drive shaft 6 and the transmission assembly 2 to operate in coordination. At the same time, this transmission method reduces energy loss during power transmission and improves the energy utilization efficiency of the equipment.
[0028] The telescopic rod 11 is fitted with springs 17 on its outer side, and the two ends of the springs 17 are respectively abutted against the bottom fixed seat and the pressure plate 12. The springs 17 can automatically adjust the pressure according to the shape and hardness of the Chinese medicinal materials, so as to avoid the pressure plate 12 from applying too much rigid pressure to the Chinese medicinal materials, thereby effectively protecting the integrity of the Chinese medicinal materials and improving their quality.
[0029] In this system, each of the two sets of protective covers 9 has a fixed shaft 18 rotatably connected inside. A synchronous pulley 3 is fixedly installed on the outer side of each fixed shaft 18. Two sets of synchronous pulleys 4 are fixedly installed on the outer side of the transmission shaft 6. The synchronous pulleys 3 and 4 are connected by a synchronous belt 25. A connecting disc 19 is fixedly installed at one end of each of the two sets of fixed shafts 18. A connecting shaft is installed on the inner side wall of each of the two sets of protective covers 9. A half-gear 20 is rotatably connected to the outer side of each connecting shaft, and the half-gear 20 meshes with a toothed cylinder 10. A waist-shaped groove is provided on one side of each half-gear 20. A limiting post 21 is fixedly installed on one side of each connecting disc 19, and the limiting post 21 is slidably connected inside the waist-shaped groove. This facilitates the downward pressing and soil removal operation of the medicinal materials, further improving the soil removal effect. The waist-shaped groove and the limiting post 21 make the rotation of the half-gear 20 more stable, enhancing the reliability and stability of the transmission structure.
[0030] The top of the frame 1 is fixedly equipped with a protective cover 22. The synchronous pulley 1, synchronous pulley 2 and synchronous belt 14 are all set inside the protective cover 22, which facilitates the sealing and protection of the three, effectively isolates external dust, dirt and moisture and other impurities, and extends the service life of the device. At the same time, the protective cover 22 can also play a certain safety protection role.
[0031] The frame 1 has symmetrically mounted casters 23 on one side of its bottom end, and a shovel 24 is mounted at an angle on the other side of its bottom end. The casters 23 give the harvester good mobility and improve the flexibility and applicability of the equipment. The angled shovel 24 can effectively dig up Chinese medicinal materials. Its angle is reasonably designed to make the digging process more labor-saving. At the same time, it can smoothly transport the dug Chinese medicinal materials to the conveying component 2, realizing the integrated operation of digging and conveying, and improving the harvesting efficiency of Chinese medicinal materials.
[0032] The working principle of this embodiment:
[0033] Before operation, the device is first installed on the agricultural machinery and moved to the work area using the moving wheels 23. Then, the equipment is started, causing it to move forward. The shovel 24 on one side of the frame 1 digs the medicinal herbs from the soil and transports them to the top of the conveyor rod 204. Simultaneously, the dual-shaft motor 13 is started. One end of the dual-shaft motor 13 drives the driven shaft 201 and the sprocket 202 fixedly connected to the driven shaft 201 to rotate via the driven pulley, the driving pulley, and the transmission belt 16. This drives the transmission chain 203 and the conveyor rod 204 fixedly installed between the transmission chains 203. Because the two sets of driven shafts 201 are at different heights, they are tilted, allowing the medicinal herbs to be transported from the lower end to the higher end of the conveyor rod 204. Meanwhile, the other end of the dual-shaft motor 13 drives the transmission shaft 6 to rotate via the first synchronous pulley and the first synchronous belt 14. This causes the fourth synchronous pulley and the second synchronous belt 25 to drive the third synchronous pulley on the fixed shaft 18 to rotate, thus causing the fixed shaft 18 and the connecting disc to rotate. 19 rotates, and then the limiting post 21 on the connecting plate 19 slides in the waist-shaped groove of the half gear 20, thereby driving the half gear 20 to rotate around the connecting shaft. Since the half gear 20 meshes with the toothed cylinder 10, it drives the toothed cylinder 10 to slide up and down in the fixed seat, thereby causing the telescopic rod 11 and the pressure plate 12 to move up and down. At the same time, under the action of the spring 17 on the outside of the telescopic rod 11, the pressure plate 12 can elastically press down on the Chinese medicinal materials, further removing the soil attached to the surface of the Chinese medicinal materials. The elastic buffer of the spring 17 avoids damage to the Chinese medicinal materials by the pressure plate 12. While the transmission shaft 6 rotates, it also drives the fixed plates 7 at both ends to rotate. The fixed plates 7 are rotatably connected to the crank rod 5 through the fixed rod 8, causing the crank rod 5 to swing around the rotation points on both sides of the frame 1, thereby driving the screening frame 4 to vibrate up and down through the connecting rod 3, thereby vibrating and screening the Chinese medicinal materials that fall from the top of the top conveyor rod 204 to the top of the screening frame 4 again, so that the attached soil is further separated from the Chinese medicinal materials and falls from the bottom of the screening frame 4.
[0034] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A harvester for Chinese medicinal herbs that facilitates the removal of soil, comprising an inclined frame (1), characterized in that: The frame (1) is internally inclined and rotatably connected to a conveying assembly (2). The bottom of the frame (1) at its highest point is rotatably connected to a connecting rod (3), and the bottom of the connecting rod (3) is rotatably connected to a screening frame (4). Both sides of the frame (1) are rotatably connected to curved rods (5). The bottom of each set of curved rods (5) is rotatably connected to one side of the screening frame (4). The top of the frame (1) is rotatably connected to a drive shaft (6) via a bearing seat. Both ends of the drive shaft (6) are equipped with fixed discs. (7) One side of each of the two sets of fixed disks (7) is rotatably connected to a fixed rod (8), and the top side of each of the two sets of curved rods (5) is rotatably connected to the corresponding fixed rod (8); a protective cover (9) is symmetrically installed inside the frame (1), and a toothed cylinder (10) is slidably connected to the inner side wall of the protective cover (9) through a fixed seat. A telescopic rod (11) is connected to the bottom end of each toothed cylinder (10), and a pressure plate (12) is installed at the bottom end of each of the two sets of telescopic rods (11).
2. The medicinal herb harvester for easy soil removal as described in claim 1, characterized in that: The transmission assembly (2) includes two sets of driven shafts (201) rotatably connected inside the frame (1), and the height of one set of driven shafts (201) is higher than the height of the other set of driven shafts (201). Both ends of the two sets of driven shafts (201) are fixedly installed with sprockets (202). On the same side, the outer sides of the two sets of sprockets (202) are fitted with transmission chains (203). Multiple sets of multiple transmission rods (204) are fixedly installed between the two sets of transmission chains (203).
3. The medicinal herb harvester for easy soil removal as described in claim 2, characterized in that: The frame (1) has a dual-axis motor (13) fixedly installed on the top side away from the drive shaft (6). One end of the dual-axis motor (13) is coaxially connected to a synchronous pulley 1. A synchronous pulley 2 is fixedly installed on the outside of the drive shaft (6). The synchronous pulley 1 and the synchronous pulley 2 are connected by a synchronous belt 1 (14). A protective cover 2 (15) is fixedly installed on one side of the frame (1). The other end of the dual-axis motor (13) extends into the protective cover 2 (15) and is coaxially connected to a drive pulley. One end of the driven shaft (201) at the top extends into the protective cover 2 (15) and is fixedly installed with a driven pulley. The driven pulley and the drive pulley are connected by a drive belt (16).
4. The medicinal herb harvester for easy soil removal as described in claim 1, characterized in that: The telescopic rod (11) is fitted with springs (17) on its outer side, and the two ends of the springs (17) are respectively abutted against the bottom fixed seat and the pressure plate (12).
5. The medicinal herb harvester for easy soil removal as described in claim 1, characterized in that: Both sets of protective covers (9) are rotatably connected to a fixed shaft (18). A synchronous wheel (3) is fixedly installed on the outside of the fixed shaft (18). Two sets of synchronous wheels (4) are fixedly installed on the outside of the transmission shaft (6). The synchronous wheel (3) and the synchronous wheel (4) are connected by a synchronous belt (25). A connecting disc (19) is fixedly installed at one end of both sets of fixed shafts (18). A connecting shaft is installed on the inner side wall of both sets of protective covers (9). A half gear (20) is rotatably connected on the outside of the connecting shaft. The half gear (20) meshes with a toothed cylinder (10). A waist-shaped groove is opened on one side of the half gear (20). A limit post (21) is fixedly installed on one side of the connecting disc (19). The limit post (21) is slidably connected inside the waist-shaped groove.
6. The medicinal herb harvester for easy soil removal as described in claim 3, characterized in that: The top of the frame (1) is fixedly installed with a protective cover three (22), and the synchronous pulley one, synchronous pulley two and synchronous belt one (14) are all located inside the protective cover three (22).
7. The medicinal herb harvester for easy soil removal as described in claim 1, characterized in that: The bottom of the frame (1) is symmetrically equipped with a moving wheel (23), and the bottom of the frame (1) is inclinedly equipped with a shovel (24).