A collecting device for a lotus root harvester

Abstract

This utility model discloses a collecting device for a lotus root harvester, belonging to the technical field of lotus root harvesting machinery and equipment. It includes a base plate, a conveyor belt assembly, and a derailleur assembly. The derailleur assembly is installed at one end of the base plate for collecting lotus roots. The conveyor belt assembly is positioned between the derailleur assembly and the base plate, and is inclined upwards along the direction of the derailleur assembly towards the base plate, for conveying the collected lotus roots. The derailleur assembly includes a roller, a support shaft, and two derailleur connecting rods. The two derailleur connecting rods are installed parallel and spaced apart on both sides of the base plate, each with a slidable support seat. Both ends of the roller are rotatably mounted on the support seats via the support shaft. Multiple teeth are spaced along the roller's axis on its outer curved surface. The support seats drive the roller to move towards or away from the conveyor belt assembly. This design optimizes the derailleur assembly, with the support seats slidably mounted on the corresponding derailleur connecting rods, thus adapting to lotus root planting areas with varying densities.

Description

Technical Field

[0001] This utility model relates to the field of lotus root harvesting machinery and equipment technology, and more specifically, to a collecting device for a lotus root harvester. Background Technology

[0002] Lotus root harvesting is a crucial link in the development of the lotus root planting industry. Currently, lotus root harvesting can be divided into two methods: manual harvesting and mechanical harvesting. Manual harvesting is inefficient and labor-intensive. Mechanical harvesting is further divided into shovel-type and jet-type harvesting based on its working principle. Shovel-type lotus root harvesters turn over the soil with a shovel, which consumes a lot of power and causes a high damage rate to the lotus roots, so they are less commonly used. Jet-type harvesters use high-pressure water jets to disperse the soil in the water, causing the lotus roots to float. This results in a low breakage rate and is therefore more widely used.

[0003] After the high-pressure water jets lift the lotus roots from the bottom of the pond, some existing highly mechanized lotus root harvesters can perform a series of actions, such as gathering the floating lotus roots and conveying them to a conveyor belt, thus achieving automatic harvesting. For example, Chinese patent application CN 207443471 U discloses a lotus root combine harvester, including a hull, a rotating shaft I, a rotating shaft sleeve, a clapping paddle, a controller, an electrode plate, a rotating shaft II, a circulating belt, a lotus root collection trough, a bottom plate, a transition plate, a motor, a propeller, a support frame, an extension plate, and a collection bin. This application uses a rotating clapping paddle to move the lotus roots into the collection trough of the circulating belt, achieving automatic harvesting. Although this type of application can achieve automated harvesting of lotus roots, it has poor adaptability to lotus root planting areas with varying densities. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the technical problem of poor adaptability of existing lotus root harvesting machines' collection devices to lotus root planting areas with varying densities, this invention provides a collection device for lotus root harvesters. This solution optimizes the design of the dial wheel assembly, with a support base slidably mounted on the corresponding dial wheel connecting rod. This allows for adjustment of the distance between the support shaft and the input end of the conveyor belt assembly, thereby adapting to lotus root planting areas with different densities.

[0006] 2. Technical solutions adopted

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0008] This utility model provides a collecting device for a lotus root harvester, including a base plate, a conveyor belt assembly, and a derailleur assembly. The derailleur assembly is installed at one end of the base plate and is used to collect the lotus roots. The conveyor belt assembly is disposed between the derailleur assembly and the base plate, and is inclined upward along the direction of the derailleur assembly toward the base plate, for conveying the collected lotus roots. The derailleur assembly includes a roller, a support shaft, and two derailleur connecting rods. The two derailleur connecting rods are installed parallel and spaced apart on both sides of the base plate, and each rod is slidably provided with a support seat. The two ends of the roller are rotatably mounted on the support seats through the support shaft, and multiple teeth are spaced apart along the axis of the roller on its outer curved surface. The support seats drive the roller to move in a direction closer to or away from the conveyor belt assembly.

[0009] Furthermore, each of the aforementioned dial connecting rods is provided with a first sliding groove inside, and the support base can be slidably installed in the first sliding groove and locked and positioned by a locking nut.

[0010] Furthermore, the dial connecting rod is a tube with a slot on its top surface to form a first sliding groove. The bolt passes through the first sliding groove and the support seat in sequence, and the bottom surface of the locking nut contacts the support seat.

[0011] Furthermore, the roller is provided with a plurality of connecting hoops evenly spaced along its axis on its exterior. Each connecting hoop is circumferentially surrounded by a plurality of L-shaped teeth dispersed in a spoke-like manner. One end of each tooth is connected to the connecting hoop and extends along the normal direction of the outer surface of the connecting hoop.

[0012] Furthermore, the roller is equipped with a transmission mechanism inside, which is used to drive the roller to rotate relative to the support shaft.

[0013] Furthermore, the conveyor belt assembly includes a conveyor belt, a conveyor frame, and a conveyor belt support plate. The conveyor belt is disposed inside the conveyor frame, and the conveyor frame is inclinedly supported on the base plate by the conveyor belt support plate. The top of the conveyor belt support plate is provided with a first connecting hole distributed along an arc. The conveyor frame is installed in the first connecting hole and locked and positioned by a lock nut.

[0014] Furthermore, the number of conveyor belt support plates is set to multiple, the multiple conveyor belt support plates are of different heights and are spaced apart along the extension direction of the conveyor frame, and each of them has a second connection hole on its top for connecting with the conveyor frame.

[0015] Furthermore, a second sliding groove is provided in the base plate, and the bottom ends of the multiple conveyor belt support plates can be slidably installed in the second sliding groove and locked and positioned by locking nuts.

[0016] Furthermore, the conveyor belt is provided with multiple partitions spaced apart along its conveying direction, and the extension direction of a single partition is parallel to the axial direction of the support shaft.

[0017] Furthermore, the top of the conveyor frame is also provided with conveyor belt baffles located on both sides of the conveyor belt.

[0018] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0019] (1) This utility model optimizes the design of the dial assembly. Specifically, the support base is slidably installed on the corresponding dial connecting rod, and the two ends of the roller are rotatably installed on the support base through the support shaft. The support base drives the roller to move in the direction closer to or away from the conveyor belt assembly, which can adjust the distance between the support shaft and the input end of the conveyor belt assembly, thereby adapting to lotus planting areas with different densities. In the actual lotus harvesting process, the distribution density of lotus roots varies. When encountering areas with dense lotus root distribution, the support shaft is slid away from the conveyor belt assembly relative to the dial connecting rod, that is, the distance between the support shaft and the input end of the conveyor belt assembly is increased, so that the roller drives the pick teeth to stir more water per unit time, expand the collection range, and ensure that more lotus roots can be effectively pushed into the conveyor belt assembly. When the lotus root distribution is sparse, the support shaft is slid closer to the conveyor belt assembly relative to the dial connecting rod, that is, the distance between the support shaft and the input end of the conveyor belt assembly is reduced, avoiding excessive stirring of the surrounding water, accurately collecting the target lotus roots, and reducing omissions.

[0020] (2) The present invention further optimizes the design of the transmission mechanism of the roller. Specifically, the roller is rotatably mounted on the support shaft and has a transmission mechanism inside. By installing the transmission mechanism inside the roller, the space of the roller is fully utilized, which not only helps to reduce the space occupied by the dial assembly, but also facilitates the sealing of the transmission mechanism; at the same time, it also facilitates the adjustment of the sliding of the support seat relative to the dial connecting rod.

[0021] (3) This utility model further optimizes the design of the conveyor belt assembly. Specifically, the conveyor frame in the conveyor belt assembly is installed in the first connecting hole distributed along the arc and locked and positioned by the locking nut, thereby adjusting the tilt angle of the conveyor frame relative to the base plate, and thus adjusting the friction between the lotus root and the conveyor belt to prevent the lotus root from falling off the conveyor belt. Furthermore, a second sliding groove is provided in the base plate, and the conveyor belt support plate can be slidably installed in the second sliding groove and locked and positioned by the locking nut, thereby facilitating the adjustment of the installation position of the conveyor belt support plate. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the collecting device for a lotus root harvester according to an embodiment of the present invention.

[0023] Figure 2This is a front view structural diagram of the collecting device for a lotus root harvester according to an embodiment of this utility model.

[0024] Figure 3 This is a top view of the collecting device for a lotus root harvester according to an embodiment of the present invention.

[0025] Figure 4 This is a left-side structural schematic diagram of the collecting device for a lotus root harvester according to an embodiment of this utility model.

[0026] Label Explanation:

[0027] 1. Teeth-griping;

[0028] 2. Roller;

[0029] 3. Support shaft;

[0030] 4. Support base;

[0031] 5. Dial wheel connecting rod; 501. First slide groove;

[0032] 6. Conveyor belt support plate; 601. First connecting hole;

[0033] 7. Base plate; 701. Second slide groove;

[0034] 8. Conveyor frame;

[0035] 9. Conveyor belt baffle;

[0036] 10. Electric motor;

[0037] 11. Conveyor belt; 1101. Partition. Detailed Implementation

[0038] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0039] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0040] This embodiment provides a collecting device for a lotus root harvester, see reference. Figures 1-4 As shown, the assembly includes a base plate 7, a conveyor belt assembly, and a turntable assembly. The turntable assembly is installed at one end of the base plate 7 and is used to gather lotus roots. The conveyor belt assembly is located between the turntable assembly and the base plate 7 and is inclined upward along the direction of the turntable assembly toward the base plate 7, used to transport the gathered lotus roots. The turntable assembly includes a roller 2, a support shaft 3, and two turntable connecting rods 5. The two turntable connecting rods 5 are installed parallel and spaced apart on both sides of the base plate 7, and each is slidably provided with a support seat 4. The two ends of the roller 2 are rotatably mounted on the support seat 4 through the support shaft 3, and multiple teeth 1 are spaced apart along the axis of the roller 2 on its outer curved surface. The support seat 4 drives the roller 2 to move in the direction of approaching or moving away from the conveyor belt assembly.

[0041] Lotus roots that are washed out or dug out of the silt by methods such as jetting or shoveling will float in the water or on the surface of the water because the overall density of lotus roots is generally less than that of water.

[0042] The operation process of this utility model is as follows: the roller 2 in the dial assembly rotates and drives the upper tooth 1 to rotate, thereby disturbing the water body to form a directional water flow. During the rotation, the tooth 1 gathers the lotus root and drives the gathered lotus root towards the input end of the conveyor belt assembly. The conveyor belt assembly transports the lotus root, thereby realizing the collection of the lotus root.

[0043] Generally speaking, the conveyor belt assembly moves the lotus root upwards, and the water carried by the lotus root falls to the bottom of the conveyor belt assembly during the lifting process.

[0044] This invention utilizes a support base 4 slidably mounted on a corresponding dial wheel connecting rod 5. The two ends of the support shaft 3 are respectively mounted on two support bases 4, thereby adjusting the distance between the support shaft 3 and the input end of the conveyor belt assembly, which in turn adjusts the distance between the roller 2 and the input end of the conveyor belt assembly. This allows for adaptation to lotus root planting areas with varying densities. In the actual lotus root harvesting process, the distribution density of lotus roots varies. It should be noted that the different distribution densities are caused by variations in the number of lotus roots per unit water area and the size of individual lotus roots. When encountering areas with dense lotus root distribution, the support shaft 3 is slid away from the dial wheel connecting rod 5, increasing the distance between the support shaft 3 and the input end of the conveyor belt assembly. This allows the roller 2 to drive the pick teeth 1 to agitate more water per unit time, expanding the collection area and ensuring that more lotus roots can be effectively fed into the conveyor belt assembly. In areas where lotus roots are sparsely distributed, slide the support shaft 3 relative to the dial wheel connecting rod 5 towards the direction of the conveyor belt assembly. This reduces the distance between the support shaft 3 and the input end of the conveyor belt assembly, avoids excessive stirring of the surrounding water, accurately collects lotus roots, and reduces omissions.

[0045] Specifically, the roller 2 is rotatably mounted on one end of the support shaft 3 at both ends, and the other end of the support shaft 3 is fixedly mounted on the support seat 4. The support seat 4 is slidably mounted on the dial connecting rod 5, and the support shaft 3 serves as the support base for the rotatable mounting of the roller 2.

[0046] More specifically, a transmission mechanism is provided inside the roller 2, and the support shaft 3 serves as the support base for the transmission mechanism inside the roller 2. The transmission mechanism is used to drive the roller 2 to rotate relative to the support shaft 3. By installing the transmission mechanism inside the roller 2, the space of the roller 2 is fully utilized, which not only helps to reduce the space occupied by the dial wheel assembly, but also facilitates the sealing of the transmission mechanism; at the same time, it also facilitates the adjustment of the sliding of the support seat 4 relative to the dial wheel connecting rod 5.

[0047] The specific arrangement of roller 2 and its internal transmission mechanism adopts existing technology, and can use the ZDDMT series powered roller produced by Ningbo Zhongda Lide Intelligent Transmission Co., Ltd. The externally protruding shaft section of the electric roller differs, and it can also be directly mounted on the support base. That is, this type of powered roller can replace roller 2, support shaft 3, and transmission mechanism in this application, integrating the functions of roller 2, support shaft 3, and transmission mechanism in this application.

[0048] refer to Figure 1 As shown, in order to improve the smoothness of the movement of the dial assembly, a pressure rod is provided at the top of the end of each of the two dial connecting rods 5 that is connected to the base plate 7, thereby improving the stability of the connection between the dial connecting rod 5 and the base plate 7.

[0049] For details, please refer to Figure 1 , Figure 3 As shown, each dial connecting rod 5 has a first groove 501 inside, and the support base 4 can be slidably installed in the first groove 501 and locked and positioned by locking nut.

[0050] More specifically, the dial connecting rod 5 is a tube with a slot on its top surface to form a first sliding groove 501. The bolt passes through the first sliding groove 501 and the support base 4 in sequence. The bottom surface of the locking nut contacts the support base 4, that is, the locking nut is set above the dial connecting rod 5, so as to facilitate the adjustment of the installation position of the support base 4 relative to the first sliding groove 501 and the locking nut.

[0051] Preferred, Reference Figure 1-3 As shown, the roller 2 is provided with a plurality of connecting rings evenly spaced along its axis. Each connecting ring is surrounded circumferentially by a plurality of L-shaped teeth 1 dispersed in a spoke-like manner. One end of the teeth 1 is connected to the connecting ring and extends along the normal direction of the outer surface of the connecting ring.

[0052] Regarding the installation method of the tooth 1, one end is fixed to the connecting hoop, and the folded edge of the other end extends towards the side away from the conveyor belt assembly.

[0053] Further preferably, the turning angle of the middle part of the L-shaped tooth 1 is an arc transition and the included angle formed by its two corner sides is preferably an obtuse angle, and the angle is preferably 100~150°.

[0054] The appropriate angle between the two folded edges of the rake tooth 1 not only increases the area for stirring the water but also prevents excessive resistance during water movement. If the angle between the two folded edges of the rake tooth 1 is too small, it may scratch the lotus root's skin when stirring, affecting its quality and market value. Conversely, if the angle is too large, when the rake tooth 1 rotates to the bottom of the roller 2, it may penetrate too deeply into the mud, increasing its own resistance and making it difficult to separate the lotus root from the mud smoothly, potentially even breaking or damaging it.

[0055] As a preferred embodiment of the conveyor belt assembly, refer to Figure 1-3 As shown, the conveyor belt assembly includes a conveyor belt 11, a conveyor frame 8, and a conveyor belt support plate 6. The conveyor belt 11 is disposed inside the conveyor frame 8. The conveyor frame 8 is inclinedly supported on the base plate 7 by the conveyor belt support plate 6. The top of the conveyor belt support plate 6 is provided with a first connecting hole 601 distributed along an arc. The conveyor frame 8 is installed in the first connecting hole 601 and locked and positioned by a lock nut.

[0056] Specifically, the bottom end of the conveyor belt support plate 6 is installed on the base plate 7, and the top end is connected to the conveyor frame 8.

[0057] The locking nut is locked to the conveyor frame 8 through the first connecting hole 601 in the conveyor support plate 6. The first connecting hole 601 is designed to be distributed along an arc, so its installation position relative to the conveyor frame 8 can be adjusted, that is, its locking height relative to the conveyor frame 8 can be adjusted, which in turn adjusts the support height of the conveyor frame 8, thereby adjusting the tilt angle of the conveyor frame 8 relative to the base plate 7.

[0058] By adjusting the installation position of the conveyor frame 8 relative to the inside of the first connecting hole 601, the tilt angle of the conveyor frame 8 relative to the base plate 7 can be adjusted, thereby adjusting the friction between the lotus root and the conveyor belt 11 and reducing the lotus root falling off the conveyor belt 11.

[0059] As an extension, the number of conveyor belt support plates 6 is set to multiple, the multiple conveyor belt support plates 6 have different heights and are spaced apart along the extension direction of the conveyor frame 8, and each of them has a second connection hole on its top for connecting with the conveyor frame 8.

[0060] Preferably, there are two or more conveyor belt support plates 6, with different heights, thereby improving the stability of the inclined support for the conveyor frame 8. Based on the first connecting hole 601, a second connecting hole is added. The second connecting hole is fixed to the conveyor frame 8 by a lock nut, further improving the stability of the conveyor belt support plate 6 supporting the conveyor frame 8 and facilitating the adjustment of the support angle between the conveyor belt support plate 6 and the conveyor frame 8.

[0061] During the process of adjusting the support angle of the conveyor belt support plate 6 to the conveyor frame 8, the second connecting hole initially determines the installation position of the conveyor belt support plate 6 relative to the conveyor frame 8, but it is not completely locked. After the support angle of the conveyor belt support plate 6 to the conveyor frame 8 is adjusted, the installation positions of the first connecting hole 601 and the second connecting hole in the conveyor belt support plate 6 relative to the conveyor frame 8 are locked by tightening the locking nut.

[0062] It should be noted that the existing conveyor frame 8 is generally constructed using aluminum profiles, which are lightweight. Its sides are integrally formed with grooves during the processing. The grooves are usually used as connecting grooves between it and other components. Locking nuts are generally locked in the grooves of the conveyor frame 8.

[0063] In some embodiments, a second slide groove 701 is provided in the base plate 7, and the bottom ends of multiple conveyor belt support plates 6 can be slidably installed in the second slide groove 701 and locked and positioned by locking nuts, thereby facilitating the adjustment of the installation position of the conveyor belt support plates 6.

[0064] As is the conventional design of the conveyor belt assembly, the conveyor frame 8 has a drive roller and a driven roller rotatably mounted inside it. The two ends of the conveyor belt 11 are nested on the drive roller and the driven roller respectively. The conveyor frame 8 is equipped with a motor 10 on its exterior. The motor 10 is fixedly mounted on the conveyor frame 8 and is connected to the drive roller through a reducer to drive its rotation.

[0065] In other embodiments, the conveyor belt 11 is provided with a plurality of spaced partitions 1101, the extension direction of a single partition 1101 being parallel to the axial direction of the support shaft 3. The partitions 1101 can effectively block the lotus roots, prevent them from slipping off the conveyor belt 11, and reduce disorderly collisions between multiple lotus roots.

[0066] Furthermore, a conveyor belt baffle 9 is also provided at the top of the conveyor frame 8. By setting the conveyor belt baffle 9, it is possible to effectively prevent lotus roots from falling from both sides of the conveyor belt 11 and ensure its stable conveying.

[0067] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A collecting device for a lotus root harvester, comprising a base plate (7), a conveyor belt assembly, and a derailleur assembly, wherein the derailleur assembly is installed at one end of the base plate (7) for collecting lotus roots; the conveyor belt assembly is disposed between the derailleur assembly and the base plate (7), and is inclined upward along the direction of the derailleur assembly toward the base plate (7) for conveying the collected lotus roots; characterized in that, The dial assembly includes a roller (2), a support shaft (3), and two dial connecting rods (5). The two dial connecting rods (5) are installed parallel to each other on both sides of the base plate (7), and each of them is slidably provided with a support seat (4). The two ends of the roller (2) are respectively rotatably installed on the support seat (4) through the support shaft (3). Multiple teeth (1) are spaced along the axis of the roller (2) on its outer curved surface. The support seat (4) drives the roller (2) to move in the direction of approaching or moving away from the conveyor belt assembly.

2. The collecting device for lotus root harvester according to claim 1, characterized in that, Each of the dial connecting rods (5) is provided with a first slide groove (501), and the support base (4) can be slidably installed in the first slide groove (501) and locked and positioned by a locking nut.

3. The collecting device for lotus root harvester as claimed in claim 2, wherein, The dial connecting rod (5) is a tube with a slot on its top surface to form a first sliding groove (501). The bolt passes through the first sliding groove (501) and the support seat (4) in sequence, and the bottom surface of the locking nut contacts the support seat (4).

4. The collecting device for lotus root harvester according to claim 2, wherein, The roller (2) is provided with a plurality of connecting hoops evenly spaced along its axis. Each connecting hoop is surrounded circumferentially by a plurality of L-shaped teeth (1) dispersed in a spoke-like manner. One end of the teeth (1) is connected to the connecting hoop and extends along the normal direction of the outer surface of the connecting hoop.

5. The collecting device for lotus root harvesting machine according to any one of claims 1-4, characterized in that, The roller (2) is equipped with a transmission mechanism inside, which is used to drive the roller (2) to rotate relative to the support shaft (3).

6. The collecting device for lotus root harvester according to claim 5, wherein, The conveyor belt assembly includes a conveyor belt (11), a conveyor frame (8), and a conveyor belt support plate (6). The conveyor belt (11) is disposed inside the conveyor frame (8). The conveyor frame (8) is inclinedly supported on the base plate (7) by the conveyor belt support plate (6). The top of the conveyor belt support plate (6) is provided with a first connecting hole (601) distributed along an arc. The conveyor frame (8) is installed in the first connecting hole (601) and locked and positioned by a lock nut.

7. The collecting device for lotus root harvester according to claim 6, wherein, The number of conveyor belt support plates (6) is set to multiple, and the multiple conveyor belt support plates (6) are of different heights and are spaced apart along the extension direction of the conveyor frame (8). Each of them has a second connection hole on its top for connecting with the conveyor frame (8).

8. The collecting device for lotus root harvester according to claim 7, characterized in that, The base plate (7) has a second slide groove (701), and the bottom ends of the multiple conveyor belt support plates (6) can be slidably installed in the second slide groove (701) and locked and positioned by locking nuts.

9. The collecting device for lotus root harvester according to claim 6, wherein, The conveyor belt (11) is provided with a plurality of partitions (1101) spaced apart along its conveying direction, and the extension direction of a single partition (1101) is parallel to the axial direction of the support shaft (3).

10. The collecting device for lotus root harvester as claimed in claim 6 wherein, The top of the conveyor frame (8) is also provided with conveyor belt baffles (9) located on both sides of the conveyor belt (11).

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