A rolling brush for a device for harvesting intertidal shellfish

Abstract

The utility model discloses a kind of for beach shellfish harvesting device's roll brush, belong to marine product automatic capture equipment technical field, including being located at the main shaft of the brush roll both ends and with its integration connection, baffle is equipped at the brush roll both ends, brush roll outside is equipped with three-section roll brush assembly, and for buckle type detachable structure, roll brush assembly includes roll brush plate and is equipped at its outside face bristle tuft, bristle tuft surface is equipped with pre-sand removal component, the utility model is through the synergic effect of three-section roll brush assembly, pre-sand removal component and bristle cleaning component, so that shellfish excavation, conveying and pre-sand removal efficient cooperation, realize the efficient harvesting and quality protection of beach shellfish, reach the effect of improving harvesting efficiency, reducing jam risk, prolonging service life.

Description

Technical Field

[0001] This utility model belongs to the technical field of automatic seafood harvesting equipment, and in particular relates to a roller brush for a shellfish harvesting device in tidal flats. Background Technology

[0002] In the field of mechanized harvesting of shellfish in tidal flats, spiral roller brushes are a commonly used digging and conveying component. As disclosed in patent CN218389436U, its basic structure consists of two sections of brushes with opposite rotation directions on a main shaft. When the main shaft is driven to rotate by a motor, the two roller brushes loosen and dig up the mud and shellfish at the bottom of the tidal flat, and use the spiral structure to convey and collect the material towards the central axis of the device for subsequent screening and collection. This design aims to replace traditional manual digging or high-pressure water jetting to improve harvesting efficiency. However, in practical applications, this harvesting method based on spiral roller brushes has exposed several technical problems that urgently need to be solved: First, the stainless steel wire brush bristles wear out severely and have a short service life. Second, when the tidal flat bottom is highly viscous or has a high water content, the dug-up sticky mud and sand easily adhere and accumulate between the blades of the spiral roller brush, causing blockages and poor conveying stability. Third, the roller brush is only responsible for digging and gathering, without pre-treating the mud and sand adhering to the surface of the shellfish. Utility Model Content

[0003] The purpose of this invention is to provide a roller brush for a shellfish harvesting device in tidal flats, which aims to solve the problems mentioned above.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: In a first aspect, this application provides a roller brush for a shellfish harvesting device in tidal flats, including a main shaft disposed at both ends of the brush roller and integrally connected thereto, baffles provided at both ends of the brush roller, a three-section roller brush assembly provided on the outer side of the brush roller, and a snap-on detachable structure, the roller brush assembly including a roller brush plate and a bristle tuft disposed on its outer side, the surface of the bristle tuft being provided with a pre-sand removal component.

[0005] In one possible implementation, the roller brush assembly includes a left section roller brush assembly, a middle section roller brush assembly, and a right section roller brush assembly arranged from left to right along the roller axis, wherein the left section roller brush assembly and the right section roller brush assembly rotate to the right and are opposite to the spiral direction of the middle section roller brush assembly.

[0006] In one possible implementation, the left section roller brush assembly, the middle section roller brush assembly, and the right section roller brush assembly each include a left side roller brush plate, a middle section roller brush plate, and a right section roller brush plate arranged sequentially in the axial direction, and each brush plate has a bristle tuft on its outer side.

[0007] In one possible implementation, the roller brush assembly adopts a variable pitch structure, that is, the pitch of the roller brush plate gradually increases from the opposite ends of the left and right roller brush assemblies toward the middle roller brush assembly.

[0008] In one possible implementation, the roller brush assembly and the brush roller are connected by a keyway positioning and snap-fit ​​connection, with the snap-fit ​​distributed along the axial direction of the brush roller, enabling quick disassembly and replacement of the roller brush assembly.

[0009] In one possible implementation, the bristle clusters are spaced apart, with a spacing of 5-20 mm between adjacent bristle clusters, and the bristle length is designed to be gradually varied, with shorter bristles near the main shaft and longer bristles on the outer side.

[0010] In one possible implementation, the bristle tufts are arranged with alternating soft and hard bristles. The soft bristle tufts are made of polyurethane, while the hard bristle tufts are a composite structure of polyurethane-wrapped stainless steel wire.

[0011] In one possible implementation, a bristle cleaning assembly is provided between the baffles. The bristle cleaning assembly includes a fixing ear that is integrally connected to the baffle, a fixing bristle rod is provided between the opposite surfaces of the fixing ear, and a mud and sand cleaning brush is provided on the fixing bristle rod near the bristle tuft end.

[0012] In one possible implementation, an elastic scraper is provided on the outer side of the brush roller, and the elastic scraper is evenly distributed between the bristle clusters of the roller brush assembly, with the included angle between the elastic scraper and the bristle clusters being 20-40 degrees.

[0013] In one possible implementation, the elastic scraper blade is fixedly connected to the brush roller via a flexible plate, and a spring is nested inside the flexible plate.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: (1). By using a three-section roller brush assembly with differentiated rotation direction, an operation path is formed that expands outward and gathers while conveying smoothly in the middle, thus avoiding excessive accumulation of materials in certain areas; (2). By using a variable pitch structure, that is, by enhancing the gripping and gathering force of the roller brush plates with smaller pitches at both ends and expanding the material gap with a larger pitch in the middle section, the adhesion of mud and sand and the obstruction of conveying are further reduced. (3). By changing the bristle clumps from continuous distribution to a gradually spaced distribution, the accumulation of mud and sand is reduced. At the same time, the alternating soft and hard materials ensure the ability to loosen the bottom substrate and avoid damage to shellfish, while improving the wear resistance of the bristles and extending the service life. (4) By adding a brush cleaning component, the mud and sand at the base of the brush bristles can be cleaned in real time to prevent blockage and deformation, and ensure the continuous and stable operation of the roller brush. In general, it realizes the integration of efficient excavation, stable transportation and preliminary sand removal of tidal flat shellfish, thereby reducing labor intensity, improving harvesting quality and extending the service life of equipment. Attached Figure Description

[0015] Figure 1 This is a top view of the roller brush of this utility model; Figure 2 This is an isometric drawing of the roller brush of this utility model; Figure 3 This is a schematic diagram of the bristle tuft of the present invention; Figure 4 This is a cross-sectional view of the bristle tuft of this utility model; Figure 5 This is an isometric view of the brush cleaning component of this utility model; Figure 6 This is a schematic diagram of the elastic sand scraper of this utility model; Figure 7 This is a cross-sectional view of the elastic sand scraper of this utility model.

[0016] The markings in the diagram are: 1. Brush roller; 2. Right section brush plate; 3. Middle section brush plate; 4. Left section brush plate; 5. Brush bristle tuft; 6. Baffle; 7. Main shaft; 8. Fixed brush rod; 9. Fixed ear; 10. Mud and sand cleaning brush; 11. Elastic scraper; 12. Flexible plate; 13. Spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0018] use Figure 1-7 This paper describes a roller brush used in a shellfish harvesting device for tidal flats. This roller brush is mainly used for mechanized harvesting of shellfish in tidal flats, replacing traditional manual digging or high-pressure water jetting methods. It achieves efficient digging, conveying, and preliminary sand removal of shellfish from the bottom of the tidal flat, solving technical problems such as severe bristle wear, mud and sand accumulation, and lack of pre-sand removal function in existing spiral roller brushes.

[0019] First, use Figure 1-2 The overall structure of the roller brush used in a device for harvesting shellfish in tidal flats is described. Figure 1 This is a top view of the roller in this application.

[0020] The roller brush for a shellfish harvesting device in tidal flats includes a main shaft 7 located at both ends of a brush roller 1 and integrally connected thereto. Baffles 6 are provided at both ends of the brush roller 1. A three-section roller brush assembly is provided on the outer side of the brush roller 1, and it has a snap-on detachable structure. The roller brush assembly includes a roller brush plate and bristle tufts 5 provided on its outer side. A pre-sand removal component is provided on the surface of the bristle tufts 5.

[0021] In this embodiment, the baffle 6 has a circular plate structure, and the diameter of the baffle 6 is larger than the diameter of the brush roller 1. Its edge extends beyond the outer wall of the brush roller 1. It is used to prevent mud and shellfish from falling from both ends of the brush roller 1 during the digging and conveying process, so as to ensure that the material is conveyed in the preset direction.

[0022] The outer side of the brush roller 1 is equipped with a three-section roller brush assembly, and the roller brush assembly and the brush roller 1 adopt a snap-on detachable structure, which facilitates the installation, disassembly and replacement of the roller brush assembly and adapts to different harvesting scenarios or maintenance needs after component wear.

[0023] In some embodiments, such as Figure 2 As shown, the roller brush assembly includes a left section roller brush assembly, a middle section roller brush assembly, and a right section roller brush assembly arranged from left to right along the axial direction of the brush roller 1. The left section roller brush assembly and the right section roller brush assembly rotate to the right and are opposite to the spiral direction of the middle section roller brush assembly.

[0024] In this embodiment, the roller brush assembly specifically includes a left section roller brush assembly, a middle section roller brush assembly, and a right section roller brush assembly arranged sequentially from left to right along the axial direction of the brush roller 1. The left section roller brush assembly and the right section roller brush assembly both rotate to the right, and their spiral directions are opposite to those of the middle section roller brush assembly, thus forming an operating path of outer gathering and middle smooth conveying. That is, the left section roller brush assembly and the right section roller brush assembly can guide the mud, sand, and shellfish at the bottom of the mudflat to gather towards the central axis of the brush roller 1, while the middle section roller brush assembly receives the gathered material and smoothly conveys it backward, avoiding excessive accumulation of material in a local area.

[0025] In some embodiments, such as Figure 2 As shown, the left section roller brush assembly, the middle section roller brush assembly and the right section roller brush assembly respectively include a left side roller brush plate 4, a middle section roller brush plate 3 and a right section roller brush plate 2 arranged sequentially in the axial direction, and each brush plate has a bristle tuft 5 on its outer side.

[0026] In this embodiment, the left side roller brush plate 4, the middle section roller brush plate 3 and the right section roller brush plate 2 are all arc-shaped plate structures. Their inner sidewalls are attached to the outer sidewalls of the brush roller 1. Each brush plate has a fixed bristle tuft 5 on its outer side. The bristle tuft 5 is evenly distributed along the spiral direction of the brush plate to form a complete spiral roller brush structure, ensuring that it can fully contact the bottom of the tidal flat during rotation and realize the functions of digging and conveying.

[0027] In some embodiments, such as Figure 2 As shown, the roller brush assembly adopts a variable pitch structure, that is, the pitch of the roller brush plate gradually increases from the opposite ends of the left and right roller brush assemblies toward the middle roller brush assembly.

[0028] In this implementation scheme, the pitch of the left roller brush plate 4 and the right roller brush plate 2 at their opposite ends is the smallest, and the pitch gradually increases along the axial direction towards the middle roller brush assembly. The middle roller brush plate 3 maintains a large constant pitch, which makes the bristle clumps 5 of the left and right roller brush assemblies more densely distributed. When rotating, it can generate stronger gripping and gathering forces, effectively loosening shellfish and silt in the mudflat bottom and guiding them to the center. Secondly, the structure of the gradually increasing pitch of the left roller brush plate 4 and the right roller brush plate 2 can avoid material jamming during rotation and conveying, achieving a smooth connection from gathering to conveying. The large pitch design of the middle roller brush assembly increases the gap between the material and the roller brush plate, reduces the adhesion and accumulation of silt, and reduces the squeezing force during material conveying, further improving the smoothness of conveying and reducing the risk of blockage.

[0029] In some embodiments, such as Figure 2 As shown, the roller brush assembly and the brush roller 1 are connected by a keyway positioning and snap-fit. The snap-fit ​​is distributed along the axial direction of the brush roller 1, which enables quick disassembly and replacement of the roller brush assembly.

[0030] In this embodiment, the roller brush assembly and the brush roller 1 are connected by a keyway positioning and snap-fit ​​connection. Specifically, a keyway is provided axially on the outer side wall of the brush roller 1, and the inner side walls of the left roller brush plate 4, the middle roller brush plate 3, and the right roller brush plate 2 are respectively provided with key blocks that are adapted to the keyway. During installation, the roller brush assembly is first positioned circumferentially on the brush roller 1 by the cooperation of the keyway and the key blocks to prevent relative rotation during rotation. At the same time, multiple snap-fits are evenly distributed axially on the outer side wall of the brush roller 1, and each roller brush plate has a corresponding snap-fit ​​hole on its edge. After the snap-fit ​​passes through the snap-fit ​​hole, it is fastened and fixed, realizing the axial fixation of the roller brush assembly and the brush roller 1. This connection method not only ensures the reliability of the connection, but also simplifies the disassembly and assembly operation, and allows for quick replacement of the roller brush assembly.

[0031] In some embodiments, such as Figure 3 As shown, the bristle clusters 5 are distributed in an intermittent manner, with a spacing of 5-20mm between adjacent bristle clusters 5, and the bristle length is designed to be gradually varied, with the bristles closer to the main shaft 7 being shorter and the bristles on the outer side being longer.

[0032] In this embodiment, the spacing between adjacent bristle clusters 5 is 5-20mm. This spacing ensures that the bristle clusters 5 can excavate the substrate and grasp materials, while reducing the adhesion and accumulation of mud and sand between the bristle clusters 5, thus reducing the risk of clogging. Simultaneously, the bristle clusters 5 have a gradually changing length design, with shorter bristles near the main shaft 7 and longer bristles on the outer edges. This allows the bristle clusters 5 to create a gradient excavation effect during rotation. The longer outer bristles can penetrate deep into the substrate to perform initial loosening and excavation, while the shorter inner bristles help to gather materials towards the center, preventing materials from slipping through the bristle gaps and improving conveying stability.

[0033] In some embodiments, such as Figure 3-4 As shown, the bristle tufts 5 are arranged with alternating soft and hard bristles. The soft bristle tufts 5 are made of polyurethane, while the hard bristle tufts 5 are made of a composite structure of polyurethane-wrapped stainless steel wire.

[0034] In this implementation scheme, the bristle tufts 5 of the middle section roller brush assembly have a lower bristle tuft density than those of the left and right section roller brush assemblies. The left and right section roller brush assemblies require higher density bristle tufts 5 to achieve efficient digging and gathering, while the middle section roller brush assembly is mainly responsible for stable conveying. The lower density bristle tufts 5 can reduce excessive compression of materials, further reduce the risk of mud and sand accumulation, and improve the smoothness of conveying. Secondly, the soft bristle tufts 5 are made of polyurethane, which has good elasticity and wear resistance, and is soft in texture. When in contact with shellfish, it can reduce scratch damage to the shells and protect the integrity of the shellfish. The hard bristle tufts 5 adopt a composite structure of polyurethane-coated stainless steel wire. The inner stainless steel wire provides sufficient structural strength to ensure the loosening ability of hard bottom or compacted mud and sand, while the outer polyurethane layer plays a buffering and wear-resistant role, avoiding direct contact between the stainless steel wire and the shellfish and causing damage, while reducing the wear of the stainless steel wire and extending its service life.

[0035] In some embodiments, such as Figure 5 As shown, a bristle cleaning assembly is provided between the baffles 6. The bristle cleaning assembly includes a fixed ear 9 that is integrally connected to the baffle 6. A fixed bristle rod 8 is provided between the opposite surfaces of the fixed ear 9. A mud and sand cleaning brush 10 is provided at the end of the fixed bristle rod 8 near the bristle cluster 5.

[0036] In this embodiment, the fixing ear 9 of the bristle cleaning assembly is located on the outer side of the baffle 6, and the bristles of the mud and sand cleaning brush 10 are in contact with the surface of the bristle tuft 5. When the roller brush rotates, the bristle tuft 5 and the mud and sand cleaning brush 10 move relative to each other. The mud and sand cleaning brush 10 can thoroughly clean the mud and sand adhering to the root and surface of the bristle tuft 5, preventing the long-term accumulation of mud and sand from causing the bristle tuft 5 to become clogged or deformed, and further improving the operating stability and service life of the roller brush.

[0037] In some embodiments, such as Figure 6 The outer side of the brush roller 1 shown is provided with an elastic scraper 11. The elastic scraper 11 is evenly distributed between the bristle clusters 5 of the roller brush assembly. The angle between the elastic scraper 11 and the bristle clusters 5 is 20-40 degrees.

[0038] In this embodiment, the elastic scraper 11 is evenly arranged between the bristle clusters 5 of the roller brush assembly. Each roller brush assembly is provided with at least 3 sets of elastic scraper 11, which are evenly distributed along the circumference of the roller brush assembly to ensure that the bristle clusters 5 and the material can be fully covered during rotation. The angle between the elastic scraper 11 and the bristle clusters 5 is 20-40 degrees, preferably 30 degrees, so that the elastic scraper 11 can form the best contact angle with the material when the roller brush rotates, which can effectively scrape the sticky mud and sand on the surface of the shellfish, realize the pre-sand removal function, and reduce the load on the subsequent screening device.

[0039] In some embodiments, such as Figure 6-7 As shown, the elastic scraper 11 is fixedly connected to the brush roller 1 via a flexible plate 12, and a spring 13 is nested inside the flexible plate 12.

[0040] In this embodiment, the elastic scraper 11 and the flexible plate 12 constitute a pre-sand removal component. The flexible plate 12 is made of wear-resistant rubber and has good flexibility. When the elastic scraper 11 comes into contact with hard debris or is subjected to great resistance, it can deform to a certain extent to avoid damage to the component caused by rigid collision. At the same time, a spring 13 is nested inside the flexible plate 12. The spring 13 provides a restoring force for the elastic scraper 11, ensuring that the elastic scraper 11 can quickly return to its original position after deformation, maintain effective contact with the material, and ensure the stability of the pre-sand removal effect.

[0041] During operation, the main shaft 7 is connected to the drive mechanism of the harvesting device. The drive mechanism drives the main shaft 7 to rotate, which in turn drives the brush roller 1 and the outer roller brush assembly to rotate synchronously. During the rotation, the left and right roller brush assemblies use their rightward rotation to loosen and dig up the mud, sand and shellfish in the mudflat bottom and gather them towards the central axis of the brush roller 1. Because the brush bristle clusters 5 adopt an intermittent distribution and a gradual length design, the adhesion and accumulation of mud and sand are effectively reduced, and the material gathering efficiency is improved.

[0042] The gathered material is conveyed to the middle section roller brush assembly. The rotation direction of the middle section roller brush assembly is opposite to that of the left and right sections, and the density of the bristle clusters is low, so as to achieve smooth backward conveying of the material and avoid excessive accumulation of material in the middle section, which may cause blockage.

[0043] During the excavation and conveying process, the pre-sand removal component works synchronously. The elastic scraper 11 rotates with the roller brush and forms a 20-40 degree angle contact with the bristle tuft 5 and the shellfish. With the cooperation of the flexible plate 12 and the spring 13, the elastic scraper 11 always maintains effective contact with the material, scraping off some of the mud and sand adhering to the surface of the shellfish to achieve the pre-sand removal function. At the same time, the mud and sand cleaning brush 10 in the bristle cleaning component continuously contacts the rotating bristle tuft 5 to clean the mud and sand at the base of the bristle tuft 5, ensuring that the excavation and conveying capacity of the bristle tuft 5 is not affected.

[0044] The baffle 6 effectively prevents material from falling from both ends of the brush roller 1, ensuring that all material is conveyed to the subsequent screening device along the preset path. During the entire working process, the components work together to solve the problem of severe wear of traditional roller brush bristles, effectively reduce the risk of mud and sand blockage, and achieve preliminary cleaning of mud and sand on the surface of shellfish, thereby improving harvesting efficiency and shellfish quality.

[0045] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

[0046] In the description of this utility model, it should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0047] Furthermore, in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] On the other hand, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "located in," "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A roller brush for a shellfish harvesting device in tidal flats, comprising a main shaft integrally connected to both ends of the brush roller, and baffles provided at both ends of the brush roller, characterized in that: The outer side of the brush roller is provided with a three-section roller brush assembly, which is a snap-on detachable structure. The roller brush assembly includes a roller brush plate and a bristle tuft provided on its outer side. The surface of the bristle tuft is provided with a pre-sand removal component.

2. The roller brush for a shellfish harvesting device in tidal flats according to claim 1, characterized in that, The roller brush assembly includes a left section roller brush assembly, a middle section roller brush assembly, and a right section roller brush assembly arranged from left to right along the roller axis. The left section roller brush assembly and the right section roller brush assembly rotate to the right and are opposite to the spiral direction of the middle section roller brush assembly.

3. A roller brush for a shellfish harvesting device in tidal flats according to claim 2, characterized in that, The left section roller brush assembly, the middle section roller brush assembly, and the right section roller brush assembly each include a left side roller brush plate, a middle section roller brush plate, and a right section roller brush plate arranged sequentially in the axial direction, and each brush plate has a bristle tuft on its outer side.

4. A roller brush for a shellfish harvesting device in tidal flats according to claim 3, characterized in that, The roller brush assembly adopts a variable pitch structure, that is, the pitch of the roller brush plate gradually increases from the opposite ends of the left and right roller brush assemblies toward the middle roller brush assembly.

5. A roller brush for a shellfish harvesting device in tidal flats according to claim 4, characterized in that, The roller brush assembly and the brush roller are connected by a keyway positioning and snap-fit ​​mechanism. The snap-fit ​​mechanism is distributed along the axial direction of the brush roller, enabling quick disassembly and replacement of the roller brush assembly.

6. A roller brush for a shellfish harvesting device in tidal flats according to claim 5, characterized in that, The bristle clusters are spaced apart, with a spacing of 5-20mm between adjacent bristle clusters. The bristle length is designed to be gradually varied, with shorter bristles near the main shaft and longer bristles on the outer side.

7. A roller brush for a shellfish harvesting device in tidal flats according to claim 6, characterized in that, The bristle clusters are arranged with alternating soft and hard bristles. The soft bristle clusters are made of polyurethane, while the hard bristle clusters are a composite structure of polyurethane-wrapped stainless steel wire.

8. A roller brush for a shellfish harvesting device in tidal flats according to claim 1, characterized in that, A bristle cleaning assembly is provided between the baffles. The bristle cleaning assembly includes a fixed ear that is integrally connected to the baffle, a fixed bristle rod is provided between the opposite surfaces of the fixed ear, and a mud and sand cleaning brush is provided near the bristle tuft end of the fixed bristle rod.

9. A roller brush for a shellfish harvesting device in tidal flats according to claim 1, characterized in that, The outer side of the brush roller is provided with an elastic scraper, which is evenly distributed between the bristle clusters of the roller brush assembly. The angle between the elastic scraper and the bristle clusters is 20-40 degrees.

10. A roller brush for a shellfish harvesting device in tidal flats according to claim 9, characterized in that, The elastic scraper is fixedly connected to the brush roller via a flexible plate, and a spring is nested inside the flexible plate.

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