Medicinal material potato harvester

Abstract

The application provides a medicinal material potato harvester, and belongs to the technical field of harvesters. The harvester comprises two mutually symmetrical side plates, two groups of parallel conveying structures fixedly connected between the two side plates, and a material carrying protection structure located on the conveying structures and connected with the conveying structures. The material carrying protection structure cooperates with the conveying structures to convey the harvested crops and protect the crops on the material carrying protection structure. The material carrying protection structure is arranged to convey the harvested crops and protect the crops on the material carrying protection structure, so that the crops are prevented from colliding with the material carrying protection structure during the conveying process, the epidermis is prevented from being damaged, and the economic value, storage stability, safety and edible quality of the harvested crops are directly affected.

Description

Technical Field

[0001] This invention relates to the field of harvester technology, and in particular to a harvester for medicinal herbs and potatoes. Background Technology

[0002] The medicinal herb and tuber harvester is an agricultural machine specifically designed for harvesting underground rhizomes of Chinese medicinal herbs (such as yam, salvia miltiorrhiza, astragalus membranaceus, and rehmannia glutinosa) and tuber crops (such as sweet potatoes and potatoes). It significantly improves harvesting efficiency, reduces labor intensity, and minimizes crop damage by replacing traditional manual digging with mechanized operations. It is suitable for large-scale planting bases, hilly and mountainous areas, and regions with labor shortages.

[0003] The existing medicinal herb and potato harvester's conveying structure consists of a transmission rod fixed to the conveyor belt. When damage or bending occurs and repairs are needed, disassembly is cumbersome. At the same time, installation wastes time and manpower. When transporting crops, the crops are prone to collision with the transmission rod when falling and rolling, causing damage to the crops. Therefore, this application provides a medicinal herb and potato harvester to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a medicinal herb and potato harvester to solve the problem that the existing medicinal herb and potato harvester has a conveying structure in which the transmission rod is fixed on the conveyor belt. When it is damaged or bent and needs to be repaired, disassembly is cumbersome. At the same time, the installation wastes time and manpower. When the crops are transported, they are prone to collision with the transmission rod when they fall and roll, causing damage to the crops.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A medicinal herb and potato harvester includes two symmetrically arranged side plates, with two sets of parallel conveying structures fixedly connected between the two side plates; a material-carrying and protective structure is located on the conveying structures and connected to the conveying structures. The material-carrying and protective structure cooperates with the conveying structures to transport the harvested crops and protect the crops on the material-carrying and protective structure; the material-carrying and protective structure includes a first limiting unit and a second limiting unit connected to the conveying structures, and the first limiting unit and the second limiting unit are cooperated with and connected to a material-carrying unit.

[0007] Optionally, a shovel structure is fixedly connected to one end of each of the two side plates for cutting into the soil and shoveling up the crop along with the soil. The conveying structure is inclined, and one end of the conveying structure is located below the shovel structure. A soil screening structure is connected to the end of each of the two side plates away from the shovel structure for throwing materials to break up soil clods and separate them from the crops. A traction structure is fixedly connected to the top of each of the two side plates for connecting to a power source to traction the harvester.

[0008] Optionally, the material conveying structure includes two drive shafts rotatably connected to the two side plates. The outer wall of the drive shaft is fitted with four evenly distributed conveyor wheels and an adjusting rod disc. A conveyor belt is fitted between the corresponding conveyor wheels on the two drive shafts.

[0009] Optionally, a plurality of the first limiting unit and the second limiting unit are provided, and the plurality of the first limiting unit and the second limiting unit are evenly distributed on the outer wall of the transmission rod belt; the first limiting unit includes a base fixedly connected to the two outer walls of the transmission rod belt located on the outside, a retaining sleeve fixedly connected to the top of the base, a slot opened at the top of the retaining sleeve corresponding to the position of the base, mutually parallel limiting plates fixedly connected to both sides of the slot, four annularly evenly distributed protective grooves opened on the inner wall of the retaining sleeve, a first elastic strip fixedly connected to the top of the protective groove, a second elastic strip fixedly connected to the bottom of the protective groove, the top of the second elastic strip fitting against the first elastic strip, and guide strips fixedly connected to the inner wall edges of the two retaining sleeves on opposite sides.

[0010] Optionally, the second limiting unit includes two limiting vertical plates fixedly connected to the inner side of the two transmission rod belts and symmetrically distributed. The two limiting vertical plates each have a semi-circular groove on their opposite sides. A fourth elastic strip in an outward-facing shape is fixedly connected to the top of the limiting vertical plate. A stop block is fixedly connected to one side of the fourth elastic strip. A third elastic strip is fixedly connected to the bottom of the limiting vertical plate near the semi-circular groove. Insertion holes are provided on both sides of the limiting vertical plate.

[0011] Optionally, the material carrying unit is composed of two connecting rods and a lifting rod connected together. The two ends of the lifting rod are respectively rotatably connected to the connecting rods. One end of the connecting rod is fixedly connected to a clamping plate. Several sets of evenly distributed honeycomb rings are fixedly connected to the outer walls of both the lifting rod and the connecting rod. Material protection units are connected to the honeycomb rings. The unit also includes a rotating unit for realizing the mutual rotation of the lifting rod and the connecting rod.

[0012] Optionally, the rotating unit includes protruding rods fixedly connected to both ends of the lifting rod, and a U-shaped rod fixedly connected to one end of the connecting rod near the lifting rod. The lifting rod and the connecting rod are rotatably connected through the cooperation of the protruding rods and the U-shaped rods. The outer walls of the protruding rods and the U-shaped rods are both provided with external threads. A retaining sleeve is fitted on the side of the lifting rod near the protruding rods, and the inner wall of the retaining sleeve is provided with internal threads that are compatible with the external threads.

[0013] Optionally, each group of honeycomb rings is formed by connecting several hexagonal rings in a ring; the protective material unit is formed by connecting several groups of protective material rings end to end, with each group of protective material rings being sleeved on the honeycomb rings in a ring. The inner side of the protective material rings is fixedly connected with shock-absorbing strips corresponding to several hexagonal rings. The shock-absorbing strips have a figure-eight structure, and the bottom end of the shock-absorbing strips is fixedly connected to the inner walls of both sides of the hexagonal rings.

[0014] Optionally, a protective unit is connected to the second limiting unit. The protective unit includes a sleeve plate sleeved on the two limiting vertical plates. The sleeve plate has a U-shaped structure, and limiting balls are fixedly connected to the inner walls of both sides of the sleeve plate at positions corresponding to the insertion holes.

[0015] Optionally, the limiting ball is composed of a plurality of elastic strips arranged in a ring array, and the shape of the limiting ball is adapted to the shape of the socket.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting up a material-carrying protective structure, the harvested crops are transported in conjunction with the material conveying structure. At the same time, the crops on the material-carrying protective structure are protected to prevent the crops from colliding with the material-carrying protective structure during the transportation process, which would cause damage to the outer skin and directly affect the economic value, storage stability, safety and edible quality of the harvested crops.

[0018] By setting a first limit unit and a second limit unit, the material-carrying protective structure can be quickly installed and replaced, reducing the repair time when the material-carrying protective structure is damaged. At the same time, for different crops, there is no need to replace other harvesters; the material-carrying protective structure can be replaced directly to solve the conveying problem of different crops.

[0019] By setting up a protective material unit, the deformable protective ring will cause the shock-absorbing strip to bend and deform, thereby absorbing the impact force of the crop falling. At the same time, the protective ring is made of rubber, which also provides a certain degree of protection for the crop. The first elastic strip will buffer the connecting rod, reducing the force between the medicinal herb and potato crop and the connecting rod. Meanwhile, the second elastic strip will deform under the compression of the first elastic strip, forming a second buffer to protect the crop from collision damage. Attached Figure Description

[0020] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a harvester for medicinal herbs and potatoes;

[0022] Figure 2 A three-dimensional structural diagram of the assembly parts of the material conveying structure and the material carrying and protection structure;

[0023] Figure 3 A schematic diagram of the three-dimensional structure of the material carrying and protection structure;

[0024] Figure 4 A three-dimensional exploded view of the material-carrying protective structure;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the material carrying unit;

[0026] Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure at point B;

[0027] Figure 7 for Figure 4 Schematic diagram of the three-dimensional structure at point A in the middle;

[0028] Figure 8 A three-dimensional cross-section diagram of the protective material unit and the honeycomb ring assembly;

[0029] Figure 9 A schematic diagram of the multi-view three-dimensional structure of the first limiting unit;

[0030] Figure 10 This is a schematic diagram of the three-dimensional structure of the second limiting unit;

[0031] Figure 11 This is a schematic diagram of the three-dimensional structure of the protective unit;

[0032] Figure 12 for Figure 11 Schematic diagram of the three-dimensional structure at point C;

[0033] Figure 13 A three-dimensional structural diagram showing the assembly of the second limiting unit and the protection unit.

[0034] Figure label:

[0035] 1. Side plate; 2. Shovel structure; 3. Traction structure; 4. Conveying structure; 41. Drive shaft; 42. Transmission wheel; 43. Adjusting rod disc; 44. Transmission rod belt; 5. Material carrying and protection structure; 51. First limiting unit; 511. Base; 512. Cylinder; 513. Protective groove; 514. First elastic strip; 515. Second elastic strip; 516. Guide strip; 517. Limiting plate; 52. Material carrying unit; 521. Lifting rod; 521 1. Protruding rod; 522. Connecting rod; 5221. Clamping plate; 5222. U-shaped rod; 53. Second limiting unit; 531. Limiting vertical plate; 532. Third elastic strip; 533. Insertion hole; 534. Fourth elastic strip; 535. Stop block; 54. Protective unit; 541. Sleeve plate; 542. Limiting ball; 55. Fixing sleeve; 56. Material protection unit; 561. Material protection ring; 562. Shock-absorbing strip; 57. Honeycomb ring; 6. Soil screening structure.

[0036] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0037] The following is a detailed description of a medicinal herb and potato harvester provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0038] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0039] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0040] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0041] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0042] like Figures 1 to 13As shown, an embodiment of the present invention provides a medicinal herb and potato harvester, including two symmetrical side plates 1, with two sets of parallel conveying structures 4 fixedly connected between the two side plates 1; a material-carrying protective structure 5, located on the conveying structures 4 and connected to the conveying structures 4, the material-carrying protective structure 5 and the conveying structures 4 cooperate to convey the harvested crops, while protecting the crops on the material-carrying protective structure 5, preventing the crops from colliding with the material-carrying protective structure 5 during the conveying process and causing skin damage, directly affecting the economic value, storage stability, safety and edible quality of the harvested crops; the material-carrying protective structure 5 includes a first limiting unit 51 and a second limiting unit 53 connected to the conveying structure 4, the first limiting unit 51 and the second limiting unit 53 can realize the quick installation and replacement of the material-carrying protective structure 5, reducing the repair time when the material-carrying protective structure 5 is damaged, and at the same time. For different crops, there is no need to replace other harvesters. The conveying problem of different crops can be solved by directly replacing the material carrying and protective structure 5. The first limiting unit 51 and the second limiting unit 53 are connected to the material carrying unit 52. Several material carrying units 52 work in a cycle under the drive of the conveying structure 4, thereby driving the material between the material carrying units 52 to move, thereby realizing the material conveying process. One end of the two side plates 1 is fixedly connected to the shovel structure 2, which is used to cut into the soil and shovel up the crop along with the soil. The conveying structure 4 is set at an angle, and one end of the conveying structure 4 is located below the shovel structure 2. The end of the two side plates 1 away from the shovel structure 2 is connected to the soil screening structure 6, which is used to throw the material to realize the breaking of soil clods and separation of crops. The top of the two side plates 1 is fixedly connected to the traction structure 3, which is used to connect the power source to realize the traction of the harvester. The shovel structure 2, the soil screening structure 6 and the traction structure 3 are all existing technologies.

[0043] When harvesting medicinal tuber crops, the traction structure 3 is connected to a tractor or other power source to drive the harvester. During the movement, the shovel structure 2 inserts into the soil. As the harvester moves, the shovel structure 2 shovels out the medicinal tuber crops along with the soil. The shoveled medicinal tuber crops fall onto the carrying unit 52 installed on the conveying structure 4 under the push of subsequent crops. Driven by the drive device connected to the conveying structure 4, the conveying structure 4 is driven to rotate, thereby driving the carrying unit 52 to rotate. The medicinal tuber crops that rotate to the end of the conveying structure 4 will fall onto the soil screening structure 6 for soil screening, thereby separating the crops from the soil and thus realizing the harvesting of medicinal tuber crops.

[0044] like Figure 1 and Figure 2 As shown, the material conveying structure 4 includes two drive shafts 41 rotatably connected to two side plates 1. The outer wall of the drive shaft 41 is fitted with four evenly distributed conveyor wheels 42 and an adjusting rod disc 43. A conveyor belt 44 is fitted between the corresponding conveyor wheels 42 on the two drive shafts 41.

[0045] One of the drive shafts 41 is connected to the drive device on the side plate 1, thereby driving the drive shaft 41 to rotate. The rotation of the drive shaft 41 drives the transmission wheel 42 and the adjusting rod disc 43 fixed on its outer wall to rotate, which in turn drives the transmission rod belt 44 to perform transmission work. The transmission rod belt 44 drives the material carrying unit 52 installed on its surface to perform cyclic work.

[0046] like Figure 3 , Figure 4 , Figure 9 and Figure 10 As shown, there are multiple first limiting units 51 and second limiting units 53, and these multiple first limiting units 51 and second limiting units 53 are evenly distributed on the outer wall of the transmission rod belt 44. The first limiting unit 51 includes a base 511 fixedly connected to the outer wall of the two transmission rod belts 44 located on the outer side. A retaining sleeve 512 is fixedly connected to the top of the base 511. A slot is opened on the top of the retaining sleeve 512 at a position corresponding to that of the base 511. Parallel limiting plates 517 are fixedly connected to both sides of the slot. The inner wall of 512 has four annularly distributed protective grooves 513. A first elastic strip 514 is fixedly connected to the top of each protective groove 513, and a second elastic strip 515 is fixedly connected to the bottom of each groove. The thickness of both the first and second elastic strips 514 and 515 gradually increases from the middle to both ends, making it easier for the middle portion of the first and second elastic strips 514 to deform upon impact, thus forming a buffer and reducing the impact force. The top of the second elastic strip 515 is connected to the first... An elastic strip 514 is attached to the two clamping cylinders 512. Guide strips 516 are fixedly connected to the inner wall edges of the two cylinders 512 on opposite sides. The guide strips 516 have an outward-facing structure and are connected to the inner wall of the clamping cylinders 512. The guide strips 516 make it easier for the connecting rod 522 to be inserted into the inside of the clamping cylinders 512. The second limiting unit 53 includes two limiting vertical plates 531 fixedly connected to the outer wall of the two transmission rod belts 44 located on the inner side and symmetrically distributed. Semicircular grooves are opened on opposite sides of the two limiting vertical plates 531. The top of the limiting vertical plate 531 A fourth elastic strip 534 with an outward-curving shape is fixedly connected to the part. A stop block 535 is fixedly connected to one side of the fourth elastic strip 534. The curvature of the side wall of the stop block 535 is greater than the curvature of the bottom, so that the connecting rod 522 can enter the semi-circular groove more easily when squeezed, and is not easy to slip out of the semi-circular groove. A third elastic strip 532 is fixedly connected to the limiting vertical plate 531 near the bottom of the semi-circular groove. The third elastic strip 532 can buffer the connecting rod 522. Insertion holes 533 are opened on both sides of the limiting vertical plate 531.

[0047] like Figures 4 to 6As shown, the material carrying unit 52 is composed of two connecting rods 522 and a lifting rod 521 connected together. The connecting rods 522 and the lifting rod 521 have the same diameter, and the diameter of the connecting rod 522 is slightly smaller than the diameter of the clamping cylinder 512 and the semi-circular groove. The two ends of the lifting rod 521 are rotatably connected to the connecting rods 522 respectively. One end of the connecting rod 522 is fixedly connected to a clamping plate 5221. The thickness of the clamping plate 5221 is less than the distance between the two limiting plates 517. Several sets of evenly distributed honeycomb rings 57 are fixedly connected to the outer walls of both the lifting rod 521 and the connecting rod 522. Material protection units 56 are connected to the honeycomb rings 57. It also includes... The device includes a rotating unit for enabling the lifting rod 521 and the connecting rod 522 to rotate relative to each other. The rotating unit includes a protruding rod 5211 fixedly connected to both ends of the lifting rod 521. A U-shaped rod 5222 is fixedly connected to one end of the connecting rod 522 near the lifting rod 521. The lifting rod 521 and the connecting rod 522 are rotatably connected by a pivot between the protruding rod 5211 and the U-shaped rod 5222. The outer walls of both the protruding rod 5211 and the U-shaped rod 5222 are provided with external threads. A retaining sleeve 55 is fitted on the side of the lifting rod 521 near the protruding rod 5211. The inner wall of the retaining sleeve 55 is provided with an internal thread that matches the external thread.

[0048] When installing the material carrying unit 52, screw the retaining sleeve 55 onto one side of the protruding rod 5211, and lift the lifting rod 521. At this time, the two connecting rods 522 can rotate freely at both ends of the lifting rod 521. During installation, first align the outer ends of the two connecting rods 522 with the corresponding retaining sleeves 512, and press the lifting rod 521 so that the connecting rods 522 at both ends of the lifting rod 521 slide into the guide strip 516 under the guidance of the guide strip 516. At the same time, the retaining plates on the connecting rods 522... 5221 is inserted between the two limiting plates 517. As the lifting rod 521 is pressed down, the connecting rod 522 will contact the two fourth elastic strips 534. Under continuous pressure, the outer wall of the connecting rod 522 will push the two fourth elastic strips 534 apart, and at the same time drive the upper part of the limiting vertical plate 531 to shift outward until the connecting rod 522 slides into the semi-circular groove along the stop block 535. The limiting vertical plate 531 returns to its initial position under its own elastic force, thereby controlling the connecting rod. The outer surface of 522 is clamped and limited. When the connecting rod 522 is pressed into the second limiting unit 53, the lifting rod 521 and the two connecting rods 522 are in a straight line. Then, the retaining sleeve 55 is rotated to the outer wall of the protruding rod 5211 and the U-shaped rod 5222, thereby limiting the protruding rod 5211 and the U-shaped rod 5222 and preventing rotation between them. The clamping sleeve 512 will limit the connecting rod 522 to prevent it from rotating during transmission. When feeding crops, if the connecting rod 522 and the lifting rod 521 detach and the material carrying unit 52 needs to be disassembled, the operation can be reversed. When medicinal herbs or tuber crops fall and hit the connecting rod 522, the connecting rod 522 will apply the impact force to the first elastic strip 514, thereby forming a buffer and reducing the force between the medicinal herbs or tuber crops and the connecting rod 522. At the same time, the second elastic strip 515 deforms under the deformation and compression of the first elastic strip 514, forming a second buffer.

[0049] like Figure 4 , Figure 7 and Figure 8 As shown, each honeycomb ring 57 is formed by connecting several hexagonal rings in a ring. The hexagonal rings provide the installation position and buffer space for the protective material unit 56, while preventing soil from entering the gap between the protective material unit 56 and the connecting rod 522. The protective material unit 56 is formed by connecting several sets of protective material rings 561 end to end. Each set of protective material rings 561 is ring-shaped and sleeved on the honeycomb ring 57. The inner side of the protective material ring 561 is fixedly connected with a shock-absorbing strip 562 corresponding to several hexagonal rings. The thickness of the protective material ring 561 and the shock-absorbing strip 562 gradually changes from thin to thick from the middle to both ends. The shock-absorbing strip 562 has a figure-eight structure. The bottom end of the shock-absorbing strip 562 is fixedly connected to the inner walls of both sides of the hexagonal ring.

[0050] When medicinal herbs and tuber crops fall from the shovel structure 2 onto the carrying unit 52, the first point of contact between the medicinal herbs and tuber crops and the protective ring 561 is the middle part. Since the protective ring 561 is a convex ring structure, when it is impacted by the medicinal herbs and tuber crops, the impact point is the middle part. Because the middle part is more easily deformed, the deformed protective ring 561 will cause the shock-absorbing strip 562 to bend and deform, thereby absorbing the impact force of the crop falling. At the same time, the protective ring 561 is made of rubber, which also provides a certain degree of protection for the crop.

[0051] like Figures 11 to 13 As shown, a protective unit 54 is connected to the second limiting unit 53. The protective unit 54 includes a sleeve plate 541 sleeved on the two limiting vertical plates 531. The sleeve plate 541 is made of elastic material. The sleeve plate 541 can prevent the crop from contacting the second limiting unit 53 when it falls, and prevent the crop from being damaged by collision with the second limiting unit 53. The sleeve plate 541 has a U-shaped structure. Limiting balls 542 are fixedly connected to the inner walls of both sides of the sleeve plate 541 at the corresponding positions of the insertion hole 533. The limiting ball 542 is composed of several elastic strips arranged in a ring array. The shape of the limiting ball 542 is adapted to the shape of the insertion hole 533.

[0052] When installing the protective unit 54, pry the sleeve 541 to both sides so that the sleeve 541 is fitted onto the second limiting unit 53. At the same time, align the limiting ball 542 with the socket 533, and then press the sides of the sleeve 541 so that the limiting ball 542 is deformed under the pressure of the socket 533 until the entire limiting ball 542 enters the socket 533, thereby fixing the sleeve 541 onto the second limiting unit 53.

[0053] The working principle of the technical solution provided by this invention is as follows: When installing the material carrying unit 52, screw the retaining sleeve 55 onto one side of the protruding rod 5211, and lift the lifting rod 521. At this time, the two connecting rods 522 can rotate freely at both ends of the lifting rod 521. During installation, first align the outer ends of the two connecting rods 522 with the corresponding clamping cylinders 512, and press the lifting rod 521 so that the connecting rods 522 at both ends of the lifting rod 521 slide into the guide bar 516 under the guidance of the guide bar 516. At the same time, the clamping plates 5221 on the connecting rods 522 engage with the two connecting rods 521. Between the limiting plates 517, as the lifting rod 521 is pressed down, the connecting rod 522 will contact the two fourth elastic strips 534. Under continuous extrusion pressure, the outer wall of the connecting rod 522 will push the two fourth elastic strips 534 open, and at the same time drive the upper part of the limiting vertical plate 531 to shift outward until the connecting rod 522 slides into the semi-circular groove along the stop block 535. The limiting vertical plate 531 returns to its initial position under its own elastic force, thereby clamping and limiting the outer surface of the connecting rod 522. When the connecting rod 522 is pressed into the second limiting unit 53, the lifting rod... With 521 and the two connecting rods 522 aligned, rotate the retaining sleeve 55 to the outer wall of the protruding rod 5211 and the U-shaped rod 5222, thereby limiting the protruding rod 5211 and the U-shaped rod 5222 and preventing rotation between them. The clamping sleeve 512 will limit the connecting rod 522. Then, install the protective unit 54, pry the sleeve plate 541 to both sides so that the sleeve plate 541 is fitted onto the second limiting unit 53. At the same time, align the limiting ball 542 with the insertion hole 533, and then press the sleeve plate 541. On both sides, the limiting ball 542 deforms under the pressure of the insertion hole 533 until the entire limiting ball 542 enters the insertion hole 533, thereby fixing the sleeve 541 on the second limiting unit 53, thus completing the installation of the material carrying unit 52. After installation, a rubber arc plate parallel to the first limiting unit 51 is installed on the inner side of the side plate 1 above it. The rubber arc plate has a concave arc structure, which shields the first limiting unit 51 to prevent the crop from contacting the first limiting unit 51 and causing damage.

[0054] When harvesting medicinal tuber crops, the traction structure 3 is connected to a tractor or other power source to drive the harvester. During movement, the shovel structure 2 inserts into the soil. As the harvester moves, the shovel structure 2 scoops out the medicinal tuber crops along with the soil. The scooped-out medicinal tuber crops fall onto the material-carrying unit 52 installed on the conveying structure 4, pushed by subsequent crops. The falling medicinal tuber crops first come into contact with the protective ring 561, which has a convex ring structure. When impacted by medicinal herbs and tuber crops, the impact point is the middle part. Since the middle part is more easily deformed, the deformed protective ring 561 will cause the shock-absorbing strip 562 to bend and deform, thereby absorbing the impact force of the falling crop. At the same time, the connecting rod 522 will apply the impact force to the first elastic strip 514, thereby forming a buffer and reducing the force between the medicinal herbs and tuber crops and the connecting rod 522. Meanwhile, the second elastic strip 515 deforms under the deformation and compression of the first elastic strip 514, forming a second buffer.

[0055] Driven by the drive device connected to the conveying structure 4, the conveying structure 4 is driven to rotate, thereby driving the carrying unit 52 to rotate in a cycle. The medicinal tuber crops that rotate to the end of the conveying structure 4 will fall onto the soil screening structure 6 for soil screening, thereby separating the crops from the soil and thus realizing the harvesting of medicinal tuber crops.

[0056] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0057] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A medicinal herb and potato harvester, characterized in that, It includes two symmetrically arranged side plates, and two sets of parallel material conveying structures are fixedly connected between the two side plates; A material-carrying and protective structure is located on the material conveying structure and is connected to the material conveying structure. The material-carrying and protective structure works in conjunction with the material conveying structure to transport the harvested crops and at the same time protect the crops on the material-carrying and protective structure. The material carrying and protection structure includes a first limiting unit and a second limiting unit connected to the material conveying structure, and the first limiting unit and the second limiting unit are connected to the material carrying unit. The material conveying structure includes two drive shafts rotatably connected to the two side plates. The outer wall of the drive shaft is fitted with four evenly distributed conveyor wheels and an adjusting rod disc. A conveyor belt is fitted between the corresponding conveyor wheels on the two drive shafts. The first limiting unit and the second limiting unit are provided in multiple units, and the multiple first limiting units and the second limiting units are evenly distributed on the outer wall of the transmission rod belt; The first limiting unit includes a base fixedly connected to the outer walls of the two transmission rods. A retaining tube is fixedly connected to the top of the base. A slot is opened at the top of the retaining tube corresponding to the position of the base. Parallel limiting plates are fixedly connected to both sides of the slot. Four protective grooves are evenly distributed in a ring on the inner wall of the retaining tube. A first elastic strip is fixedly connected to the top of the protective groove. A second elastic strip is fixedly connected to the bottom of the protective groove. The top of the second elastic strip fits against the first elastic strip. Guide strips are fixedly connected to the inner wall edges of the two retaining tubes on opposite sides. The second limiting unit includes two limiting vertical plates fixedly connected to the inner side of the two transmission rod belts and symmetrically distributed. The two limiting vertical plates have semi-circular grooves on opposite sides. A fourth elastic strip in an outward-facing shape is fixedly connected to the top of the limiting vertical plate. A stop block is fixedly connected to one side of the fourth elastic strip. A third elastic strip is fixedly connected to the bottom of the limiting vertical plate near the semi-circular groove. Insertion holes are provided on both sides of the limiting vertical plate.

2. The medicinal herb and potato harvester according to claim 1, characterized in that, One end of each of the two side plates is fixedly connected to a shovel structure for cutting into the soil and shoveling up the crop along with the soil. The material conveying structure is inclined, and one end of the material conveying structure is located below the shovel structure. The ends of the two side plates away from the shovel structure are connected to a soil screening structure for throwing materials to break up soil clods and separate them from the crops. The tops of the two side plates are fixedly connected to a traction structure for connecting to a power source to traction the harvester.

3. The medicinal herb and potato harvester according to claim 1, characterized in that, The material carrying unit is composed of two connecting rods and a lifting rod. The two ends of the lifting rod are rotatably connected to the connecting rods respectively. One end of the connecting rod is fixedly connected to a clamping plate. Several sets of evenly distributed honeycomb rings are fixedly connected to the outer walls of the lifting rod and the connecting rod. Material protection units are connected to the honeycomb rings. It also includes a rotating unit for enabling the lifting rod and the connecting rod to rotate relative to each other.

4. The medicinal herb and potato harvester according to claim 3, characterized in that, The rotating unit includes protruding rods fixedly connected to both ends of the lifting rod. A U-shaped rod is fixedly connected to one end of the connecting rod near the lifting rod. The lifting rod and the connecting rod are rotatably connected through the cooperation of the protruding rods and the U-shaped rod. External threads are provided on the outer walls of both the protruding rods and the U-shaped rods. A retaining sleeve is fitted on the side of the lifting rod near the protruding rods. An internal thread that matches the external thread is provided on the inner wall of the retaining sleeve.

5. The medicinal herb and potato harvester according to claim 3, characterized in that, Each group of honeycomb rings is composed of several hexagonal rings connected in a ring shape; The protective material unit is composed of several sets of protective material rings connected end to end. Each set of protective material rings is ring-shaped and sleeved on the honeycomb ring. The inner side of the protective material ring is fixedly connected with a shock-absorbing strip corresponding to several hexagonal rings. The shock-absorbing strip has a figure-eight structure, and the bottom end of the shock-absorbing strip is fixedly connected to the inner walls of both sides of the hexagonal ring.

6. The medicinal herb and potato harvester according to claim 1, characterized in that, The second limiting unit is connected to a protective unit, which includes a sleeve plate fitted onto the two limiting vertical plates. The sleeve plate has a U-shaped structure, and limiting balls are fixedly connected to the inner walls of the two sides of the sleeve plate at positions corresponding to the insertion holes.

7. The medicinal herb and potato harvester according to claim 6, characterized in that, The limiting ball is composed of several elastic strips arranged in a ring array, and the shape of the limiting ball is adapted to the shape of the socket.

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