Traditional Chinese medicine material harvesting machine

Abstract

The utility model discloses a traditional chinese medicinal material harvester relates to medicinal material mechanical technical field, including frame, the inside of frame is provided with earth -moving subassembly, conveying assembly and screen stone subassembly, the earth -moving subassembly includes the earth -moving board of fixed setting in the inside wall of frame, the top of earth -moving board is fixedly arranged with the limiting installation rod, and the surface rotationally connected with a plurality of movable spades of limiting installation rod, the utility model classifies and selects the impurity, and the improvement medicinal material purity is in conveying assembly, and the conveying steel bar of conveying belt surface is staggered distribution up and down, and keeps specific interval between adjacent steel bar. This structure can transport traditional chinese medicinal material at the same time, and the soil fragment, small stone and other small impurities are filtered through the steel bar gap, and the separation of traditional chinese medicinal material and light impurities is realized primarily. Limiting pressure roller is located above conveying steel bar, and the traditional chinese medicinal material and residual impurities in conveying process can be moderately extruded, so that the soil adhered to the surface of traditional chinese medicinal material falls, and the impurity separation effect is further improved, and the subsequent cleaning procedure is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medicinal material machinery technology, and in particular to a Chinese medicinal material harvesting machine. Background Technology

[0002] In the Chinese medicinal herb cultivation industry, the harvesting stage is a crucial factor affecting the quality and production efficiency of the herbs. Traditional harvesting methods for Chinese medicinal herbs are mainly divided into two categories: manual harvesting and mechanical harvesting. Manual harvesting involves digging with tools such as hoes and shovels, followed by manual sifting to remove soil and stones. While this reduces damage to the herbs, it is labor-intensive and extremely inefficient, making it difficult to meet the needs of large-scale cultivation. Mechanical harvesting, although more efficient, still faces several technical challenges in practical applications, as detailed below: 1. Low impurity screening efficiency and high subsequent cleaning costs: Medicinal herbs grow in complex environments, often containing large amounts of soil, small stones, weeds, and other impurities during harvest. Existing machinery has simple conveying and screening structures, mostly using single conveyor belts or grid-type screening, making it difficult to achieve graded filtration of impurities. Soil fragments easily adhere to the surface of the herbs, and small stones are easily mixed with the herbs during transport, resulting in a high impurity rate in the harvested medicinal herbs. Growers need to invest additional manpower for secondary cleaning, increasing production costs and reducing overall harvesting efficiency.

[0003] 2. Large stones can easily jam equipment, affecting operational continuity: Some planting areas contain numerous large stones in the soil. Existing harvesters' stone-screening structures lack flexible obstacle avoidance designs, allowing large stones to easily get stuck in rotating parts (such as between the conveyor belt and the screen) during transport and screening, causing equipment shutdowns. Frequent shutdowns not only affect harvesting progress but may also cause component deformation, motor overload, and other malfunctions due to forced operation, increasing equipment maintenance costs and even posing safety hazards.

[0004] Based on the above background, and in view of the shortcomings of the existing technology, this utility model designs an integrated harvester that integrates soil shoveling, conveying and stone screening functions. Utility Model Content

[0005] This utility model discloses a Chinese medicinal herb harvesting machine, which effectively solves the pain points of traditional Chinese medicinal herb harvesting, such as easy damage to the herbs during digging, low efficiency in impurity screening, and easy jamming of the machine by large stones. It significantly improves harvesting efficiency and the quality of herbs, and reduces manual cleaning costs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A Chinese medicinal herb harvester includes a frame, and the frame is internally equipped with a soil-shoveling component, a conveying component, and a stone-screening component. The shovel assembly includes a shovel plate fixedly installed on the inner side wall of the frame, and a limit mounting rod fixedly installed at the top of the shovel plate. Several movable shovels are rotatably connected to the surface of the limit mounting rod. The conveying assembly includes two sets of conveyor belts rotatably mounted on the inner side wall of the frame. Several conveying steel bars are fixedly installed on the surface of each set of conveyor belts. A certain distance is maintained between two adjacent conveying steel bars, and the two sets of conveying steel bars are staggered inside the frame. The stone screening assembly includes two rotating limiting discs rotatably connected to the inner side wall of the frame, a movable shaft is fixedly connected between the two rotating limiting discs, and several steel cables are installed between the two rotating limiting discs.

[0007] In a preferred embodiment, a limiting circular plate is fixedly provided on the surface of the movable shaft. The limiting circular plate is located between two rotating limiting discs, and the surface of the limiting circular plate is provided with a plurality of strip-shaped limiting holes, the size of which matches the steel cable.

[0008] In a preferred embodiment, several limiting sleeves are fixedly provided inside the steel cable and on the opposite sides of the rotating limiting disk. Both ends of the steel cable are inserted and installed inside the limiting sleeves, and the several steel cables are evenly distributed in a circular array between the two rotating limiting disks.

[0009] In a preferred embodiment, a drive shaft and a drive gear box are rotatably mounted on the top of the frame, a drive shaft is rotatably mounted on the surface of the drive gear box, and a drive gear set is disposed inside the drive gear box. The drive shaft drives the drive shaft to rotate through the drive gear set inside the drive gear box.

[0010] In a preferred embodiment, both ends of the drive shaft extend to the outside of the frame and are fixedly connected to a drive synchronous pulley. The rotating shaft of the conveyor belt extends to the outside of the frame and is fixedly connected to a driven synchronous pulley. The drive synchronous pulley and the driven synchronous pulley are connected by a drive belt.

[0011] In a preferred embodiment, a plurality of stops are fixedly provided on the surface of the limiting mounting rod. The positions of the stops correspond to the movable shovel, and the stops are used to limit the rotation angle of the movable shovel.

[0012] In a preferred embodiment, a limiting pressure roller is rotatably provided on the inner side of the frame. The limiting pressure roller is located above the conveying steel bar and is used to squeeze out impurities and soil in the medicinal materials.

[0013] The specific beneficial effects of this utility model are as follows: 1. Precise Excavation and Stone Avoidance to Reduce Damage to Medicinal Herbs: In the shovel assembly, the movable shovel can rotate around the limiting mounting rod (maximum rotation angle of 90 degrees). When a stone on the surface of the conveying steel bar comes into contact with the movable shovel during the conveying process, the pushing force of the stone will cause the movable shovel to automatically rotate 90 degrees, allowing the stone to pass smoothly under the movable shovel. This avoids equipment wear caused by hard collisions between the stone and the shovel structure, and also prevents breakage or damage to the medicinal herbs caused by the stones squeezing them, ensuring the integrity of the herbs. The stop on the limiting mounting rod can precisely limit the rotation angle of the movable shovel, ensuring that the movable shovel can quickly return to its original position after avoiding stones, without affecting the continuity of subsequent shovel operations.

[0014] 2. Graded screening to improve the purity of medicinal materials: In the conveyor assembly, the conveyor belt surface has staggered steel bars with a specific spacing between adjacent bars. This structure can filter out fine impurities such as soil fragments and small stones through the gaps between the steel bars while conveying medicinal materials, initially achieving the separation of medicinal materials from light impurities. The limiting pressure roller is located above the conveyor steel bars and can moderately squeeze the medicinal materials and residual impurities during the conveying process, causing the soil attached to the surface of the medicinal materials to fall off, further improving the impurity separation effect and reducing subsequent cleaning processes.

[0015] 3. Anti-clogging and efficient stone screening, ensuring continuous operation: In the stone screening assembly, the steel cable is installed through the strip-shaped limiting holes of the limiting circular plate, which provides a certain amount of movement for the steel cable. When large stones enter the screening area with the medicinal materials, the stones will push the steel cable to move slightly along the strip-shaped limiting holes, avoiding rigid jamming between the steel cable and the stones. Both ends of the steel cable are fixed to the rotating limiting plate by limiting sleeves. With the rotation of the rotating limiting plate, the steel cable can adaptively adjust its position according to the pushing force of the stones, ensuring that large stones can be smoothly discharged between the steel cable and the conveying steel bars. This completely solves the problem of large stones getting stuck between rotating parts in traditional equipment, causing machine stoppage, thus improving screening efficiency and operational continuity. The circular array of steel cables and the interlaced steel bars of the conveying assembly form a double screening structure. Small impurities are filtered through the gaps between the steel bars, while large stones are guided out by the steel cables, achieving "graded treatment of impurities of different sizes," further improving the purity of the medicinal materials. Attached Figure Description

[0016] Figure 1 This is a three-dimensional first-view structural diagram of a Chinese medicinal herb harvester proposed in this utility model.

[0017] Figure 2 This is a three-dimensional second-view structural diagram of a Chinese medicinal herb harvester proposed in this utility model.

[0018] Figure 3 This is a three-dimensional third-view structural diagram of a Chinese medicinal herb harvester proposed in this utility model.

[0019] Figure 4This is a three-dimensional fourth-view structural diagram of a Chinese medicinal herb harvester proposed in this utility model.

[0020] In the attached diagram: 1. Frame; 2. Soil-shoveling assembly; 3. Conveying assembly; 4. Stone-screening assembly; 5. Drive shaft; 6. Transmission gearbox; 7. Drive shaft; 8. Drive synchronous pulley; 9. Driven synchronous pulley; 201. Soil scraper; 202. Limiting rod; 203. Movable shovel; 301. Conveyor belt; 302. Rebar conveyor; 303. Limiting pressure roller; 401. Rotary limiting plate; 402. Movable shaft; 403. Steel cable; 404. Limiting circular plate; 405. Strip-shaped limiting hole; 406. Limiting sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4 A Chinese medicinal herb harvester mainly consists of a frame 1, a soil-shoveling component 2, a conveying component 3, and a stone-screening component 4. Each component works in coordination through a specific positional relationship.

[0023] The frame 1 serves as the supporting framework for the entire equipment, with all functional components installed on its inner wall or top. Specifically, the soil-shoveling assembly 2, located at the front bottom of the frame 1, is used to excavate medicinal herbs from the soil; the conveying assembly 3, located behind the soil-shoveling assembly 2, receives the medicinal herbs and impurities conveyed from the soil-shoveling assembly 2 and performs preliminary screening; the stone-screening assembly 4, located below the end of the conveying assembly 3, performs secondary separation of large stones remaining during the conveying process. The top of the frame 1 also houses the power transmission structure, providing power to the conveying assembly 3 and the stone-screening assembly 4.

[0024] The soil-shoveling assembly 2 includes a soil-shoveling plate 201, a limiting installation rod 202, and a movable shovel 203. Their specific installation relationship is as follows: The soil-shoveling plate 201 is fixedly installed at the bottom front end of the inner side wall of the frame 1, and extends forward and downward in an inclined manner to insert into the soil and shovel up the Chinese medicinal materials and the surrounding soil.

[0025] The limiting installation rod 202 is fixed to the top of the shovel plate 201, horizontally distributed along the length of the shovel plate 201, and its two ends are fixedly connected to the inner side wall of the frame 1 to form a stable installation foundation.

[0026] Several movable shovels 203 are evenly distributed on the surface of the limiting installation rod 202 and are sleeved on the limiting installation rod 202 by a rotating connection, and can rotate freely around the limiting installation rod 202; the bottom of the movable shovel 203 maintains a certain distance from the surface of the shovel plate 201 to avoid affecting the digging action of the shovel plate 201.

[0027] The surface of the limit mounting rod 202 is also fixedly provided with several stops (corresponding one-to-one with the movable shovel 203). The stops are located on one side of the movable shovel 203 and are used to limit the rotation angle of the movable shovel 203 to ensure that the movable shovel 203 can return to the initial working position after rotation.

[0028] The conveying assembly 3 includes a conveyor belt 301, a conveying steel bar 302, and a limiting pressure roller 303. Their specific installation relationship is as follows: the two sets of conveyor belts 301 are respectively installed on the inner side wall of the frame 1 through a rotating shaft, located behind the soil-moving assembly 2; the two sets of conveyor belts 301 are distributed in parallel vertically and in the same conveying direction (from the front end of the frame 1 to the end end).

[0029] Several conveying steel bars 302 are fixedly installed on the surface of each set of conveyor belts 301 and are evenly distributed along the length of the conveyor belts 301. A certain distance is maintained between two adjacent conveying steel bars 302. The conveying steel bars 302 of the upper and lower sets of conveyor belts 301 are staggered (that is, the conveying steel bars 302 of the upper conveyor belt 301 are located directly above the gap between the two conveying steel bars 302 of the lower conveyor belt 301), forming a grid-like conveying channel.

[0030] The rotating shaft of the conveyor belt 301 extends to the outside of the frame 1 at both ends, and the driven synchronous pulley 9 is fixedly connected to the end. The driven synchronous pulley 9 is connected to the driving synchronous pulley 8 at the top of the frame 1 through the transmission belt, receives power and drives the conveyor belt 301 to rotate.

[0031] The limiting pressure roller 303 is rotatably mounted on the inner wall of the frame 1 via a rotating shaft, located above the two sets of conveyor belts 301, and maintaining a certain distance from the surface of the conveying steel bar 302; the length of the limiting pressure roller 303 matches the width of the conveyor belt 301, and can cover the entire conveying area.

[0032] The stone screening assembly 4 includes a rotating limiting disc 401, a movable shaft 402, a steel cable 403, a limiting circular plate 404, and a limiting sleeve 406. Their specific installation relationship is as follows: the two rotating limiting discs 401 are respectively rotatably connected to the ends of the inner side wall of the frame 1 through a rotating shaft, and are distributed in a parallel state relative to each other; the movable shaft 402 is fixedly connected between the two rotating limiting discs 401, located at the center position of the rotating limiting discs 401, and rotates synchronously with the rotating limiting discs 401.

[0033] The limiting circular plate 404 is fixedly sleeved on the surface of the movable shaft 402 and located in the middle of the two rotating limiting disks 401; the surface of the limiting circular plate 404 is provided with a number of strip-shaped limiting holes 405, which are evenly distributed along the circumference of the limiting circular plate 404.

[0034] Several steel cables 403 are installed between two rotating limiting discs 401 in a circular array. The middle part of the steel cable 403 is inserted into the strip-shaped limiting hole 405, and the two ends are respectively inserted into the limiting sleeves 406 on the opposite side of the two rotating limiting discs 401 (the limiting sleeves 406 correspond one-to-one with the strip-shaped limiting hole 405), forming a ring screen structure.

[0035] The stone screening component 4 is located below the end of the conveying component 3. The annular screen composed of steel cables 403 maintains a certain distance from the conveying steel bars 302 at the end of the conveying component 3, and receives the material falling from the conveying component 3.

[0036] The power transmission structure includes a transmission shaft 5, a transmission gear box 6, a drive shaft 7, a drive synchronous pulley 8, and a driven synchronous pulley 9, and their specific installation relationship is as follows: The transmission gear box 6 is fixedly installed at the top center of the frame 1. The drive shaft 7 is rotatably connected to the surface of the transmission gear box 6, with one end extending into the interior of the transmission gear box 6 and the other end used to connect to an external power source (such as a tractor or motor).

[0037] The drive shaft 5 is rotatably mounted on the top of the frame 1, located on one side of the transmission gear box 6, with both ends extending to the outside of the frame 1; one end of the drive shaft 5 is connected to the transmission gear set inside the transmission gear box 6, and forms a power transmission relationship with the drive shaft 7 through the transmission gear set.

[0038] The drive synchronous pulley 8 is fixedly connected to both ends of the transmission shaft 5 (located outside the frame 1), and the driven synchronous pulley 9 is fixedly connected to both ends of the rotating shaft of the conveyor belt 301 (located outside the frame 1). The drive synchronous pulley 8 and the driven synchronous pulley 9 are on the same horizontal plane and are connected by a transmission belt, so that the power of the transmission shaft 5 can be transmitted to the conveyor belt 301.

[0039] Working principle: In use, an external power source inputs power into the transmission gear box 6 via the drive shaft 7. The transmission gear set inside the transmission gear box 6 transmits power to the transmission shaft 5, causing the transmission shaft 5 to rotate. The drive synchronous pulleys 8 at both ends of the transmission shaft 5 rotate with it, and drive the driven synchronous pulleys 9 to rotate via the transmission belt, ultimately driving the conveyor belt 301 to rotate. At the same time, the rotating limit disc 401, under the action of external power (which can be driven by the same transmission system or an independent power source), drives the movable shaft 402 and the steel cable 403 to rotate, forming a rotating screen structure.

[0040] As the equipment moves forward, the shovel plate 201 inserts into the soil, scooping up the medicinal herbs and surrounding soil and conveying them to the movable shovel 203. The movable shovel 203 performs preliminary sorting of the material. If the material contains stones, when the stones move in the conveying direction and come into contact with the movable shovel 203, they will push the movable shovel 203 to rotate around the limit mounting rod 202 (the stop block ensures that its maximum rotation angle is reasonable), so that the stones pass under the movable shovel 203, avoiding collision between the stones and the shovel structure; the medicinal herbs are then guided into the conveying assembly 3 by the movable shovel 203.

[0041] After entering the conveying assembly 3, the medicinal herbs and residual impurities fall onto the conveying steel bars 302 of the conveyor belt 301 and are conveyed backward by the conveyor belt 301. Due to the gaps between the conveying steel bars 302 and their staggered distribution, small impurities such as soil fragments and pebbles fall through the gaps, achieving preliminary screening; the limiting pressure roller 303 rotates above the material, squeezing the soil attached to the surface of the medicinal herbs, causing the soil to fall off and be discharged from the gaps between the conveying steel bars 302, further purifying the medicinal herbs.

[0042] The materials (mainly Chinese medicinal herbs and large stones) after being screened by the conveying component 3 are transported to the end and fall into the annular screen composed of steel cables 403 in the stone screening component 4. Due to their large weight and volume, the large stones will push the steel cables 403 to move slightly along the strip-shaped limiting holes 405 of the limiting circular plate 404, preventing them from getting stuck between the steel cables 403 and the conveying reinforcing bars 302; at the same time, the rotating steel cables 403 transport the large stones outward and discharge them, while the Chinese medicinal herbs fall into the collection area as the steel cables 403 rotate.

[0043] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A Chinese medicinal herb harvester, comprising a frame (1), characterized in that, The frame (1) is equipped with a soil-shoveling assembly (2), a conveying assembly (3), and a stone-screening assembly (4). The shovel assembly (2) includes a shovel plate (201) fixedly installed on the inner side wall of the frame (1). A limit mounting rod (202) is fixedly installed at the top of the shovel plate (201). Several movable shovels (203) are rotatably connected to the surface of the limit mounting rod (202). The conveying assembly (3) includes two sets of conveyor belts (301) rotatably disposed on the inner side wall of the frame (1). Several conveying steel bars (302) are fixedly installed on the surface of each set of conveyor belts (301). A certain distance is maintained between two adjacent conveying steel bars (302), and the two sets of conveying steel bars (302) are staggered inside the frame (1). The stone screening assembly (4) includes two rotating limiting discs (401) rotatably connected to the inner side wall of the frame (1), a movable shaft (402) is fixedly connected between the two rotating limiting discs (401), and a number of steel cables (403) are installed between the two rotating limiting discs (401).

2. The Chinese medicinal herb harvester according to claim 1, characterized in that, A limiting circular plate (404) is fixedly provided on the surface of the movable shaft (402). The limiting circular plate (404) is located between two rotating limiting disks (401), and a number of strip-shaped limiting holes (405) are opened on the surface of the limiting circular plate (404). The size of the strip-shaped limiting holes (405) matches that of the steel cable (403).

3. A Chinese medicinal herb harvester according to claim 2, characterized in that, The steel cable (403) is inserted into the inside of the strip-shaped limiting hole (405). Several limiting sleeves (406) are fixedly provided on the opposite sides of the rotating limiting disk (401). Both ends of the steel cable (403) are inserted into the inside of the limiting sleeves (406). Several steel cables (403) are evenly distributed in a circular array between the two rotating limiting disks (401).

4. A Chinese medicinal herb harvester according to claim 3, characterized in that, The top of the frame (1) is rotatably provided with a transmission shaft (5) and a transmission gear box (6). The surface of the transmission gear box (6) is rotatably provided with a drive shaft (7). The transmission gear box (6) is provided with a transmission gear set inside. The drive shaft (7) drives the transmission shaft (5) to rotate through the transmission gear set inside the transmission gear box (6).

5. A Chinese medicinal herb harvester according to claim 4, characterized in that, Both ends of the drive shaft (5) extend to the outside of the frame (1) and are fixedly connected to the drive synchronous pulley (8). The rotating shaft of the conveyor belt (301) extends to the outside of the frame (1) and is fixedly connected to the driven synchronous pulley (9). The drive synchronous pulley (8) and the driven synchronous pulley (9) are connected by a drive belt.

6. A Chinese medicinal herb harvester according to claim 5, characterized in that, The surface of the limiting mounting rod (202) is fixedly provided with several blocks, the positions of which correspond to the movable shovel (203), and the blocks are used to limit the rotation angle of the movable shovel (203).

7. A Chinese medicinal herb harvester according to claim 6, characterized in that, The inner side of the frame (1) is provided with a limiting pressure roller (303), which is located above the conveying steel bar (302). The limiting pressure roller (303) is used to squeeze the impurities and soil in the medicinal materials.

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