A collection-screening device and method for cleaning beach materials to be mined

Abstract

The present invention discloses a collection - screening device and method for cleaning beach materials to be mined, which includes a rotary collection head, a sand shoveling plate, a vibrating screen and a material box; the rotary collection head drives the driving rod through a motor, drives the reciprocating rotation of the helically arranged rake teeth, and turns the materials to be mined in the sand to the surface layer; the inclined sand shoveling plate guides the materials - sand to be mined into the vibrating screen, and the vibrating screen realizes horizontal reciprocating vibration through the front - rear double vibration transmission components, and the power is provided by the transmission components driven by an independent motor, effectively separating the sand and the materials to be mined; the screened materials to be mined slide into the tail material box through the vibrating screen for centralized collection. The present invention adopts a modular design, and through the coordinated action of the rotary rake teeth and the vibrating screen, realizes the automatic collection, efficient screening and centralized recovery of beach materials to be mined, and has the characteristics of compact structure, strong operation continuity and high environmental adaptability.

Description

Technical Field

[0001] The present invention belongs to the technical field of beach cleaning equipment. Specifically, it relates to a high-efficiency and high-reliability collection and screening device and method for cleaning beach materials to be mined. Background Art

[0002] With the increasingly serious global marine pollution problem, the cleaning of beach materials to be mined has become an important task for protecting the marine ecological environment and the environmental quality of coastal areas. Beach materials to be mined mainly include various types of solid waste such as garbage, gravel, shells, and ores, with complex compositions and wide distributions. Traditional methods for cleaning beach materials to be mined mainly rely on manual picking or simple mechanical sweeping. However, these methods have problems such as low efficiency, high labor intensity, and incomplete cleaning, facing efficiency bottlenecks in large-scale operations.

[0003] In recent years, mechanical equipment for cleaning beach materials to be mined has gradually developed. Among them, the collection and screening device for beach materials to be mined, as an efficient solution, has received extensive attention. Such devices usually collect materials to be mined through traditional mechanical structures such as buckets, and then use conveyor belts to transport the collected sand and materials to be mined to a vibrating screen for separation. However, the existing technologies still have the following deficiencies:

[0004] ① Low collection efficiency: Most use traditional mechanical structures such as buckets to collect materials to be mined. When the bucket collects materials to be mined, it is easy to scoop up a large amount of sand at the same time, which not only has a large resistance and high energy consumption, but also increases the workload of subsequent screening.

[0005] ② Poor screening effect: Most use conveyor belts and vibrating screens to transport and screen materials to be mined, unable to screen impurities such as sand. The process is complex, and the structures of the conveyor belt and vibrating screen are complex, prone to failures and with high maintenance costs.

[0006] ③ Low degree of automation: Most still require manual intervention for operation and adjustment, lacking an intelligent control system and unable to achieve efficient and stable automated operation.

[0007] ④ Insufficient environmental friendliness: Most may cause damage to the beach ecological environment during operation, such as compacting the beach and disturbing marine organisms, without fully considering environmental protection requirements.

[0008] In summary, the existing collection and screening devices for beach materials to be mined still have many deficiencies in terms of collection efficiency, screening accuracy, terrain adaptability, degree of automation, and environmental friendliness, and there is an urgent need for further improvement and optimization to meet the growing demand for cleaning beach materials to be mined. Summary of the Invention

[0009] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a high-efficiency and high-reliability collection and screening device and method for cleaning beach materials to be mined, aiming to provide a more efficient and environmentally friendly solution for the collection and screening of beach materials to be mined such as beach garbage, gravel, ore, and / or shells.

[0010] To achieve the above object, the present invention adopts the following technical solutions:

[0011] In a first aspect, the present invention provides a collection and screening device for cleaning beach materials to be mined, including: a fixed bracket; a rotary collection head, including: a rotary drive rod installed on the front side of the fixed bracket; rake teeth composed of a plurality of rods arranged in an equidistant spiral manner on the rotary drive rod; a collection head motor provided on the fixed bracket; a transmission belt drivingly connected between the collection head motor and the rotary drive rod, the collection head motor driving the rotary drive rod to rotate synchronously through the transmission belt, thereby driving the rake teeth to reciprocate in a downward and forward direction; a sand shovel plate arranged on the fixed bracket behind the rotary collection head, the sand shovel plate being inclined as a whole towards the forward direction and the front end of the sand shovel plate being slightly lower than the sand surface; a vibrating screen arranged below the fixed bracket behind the sand shovel plate, including: a vibrating screen mesh arranged obliquely with the front end lower and the rear end higher below the fixed bracket, and the front end of the vibrating screen mesh being connected to the rear end of the sand shovel plate; a vibration transmission assembly, which is composed of two groups arranged front and rear, the front vibration transmission assembly being connected between the motor transmission assembly and the front end of the vibrating screen mesh, and the rear vibration transmission assembly being connected between the fixed bracket and the rear end of the vibrating screen mesh to suspend the vibrating screen mesh on the fixed bracket; a vibrating screen motor provided on the fixed bracket and drivingly connected to the front vibration transmission assembly through the motor transmission assembly, the vibrating screen motor driving the vibrating screen mesh to reciprocate horizontally through the motor transmission assembly and the front vibration transmission assembly; a material box provided at the rear side of the fixed bracket and below the rear end of the vibrating screen mesh for collecting the screened materials to be mined.

[0012] Preferably, the collection and screening device further includes a local control unit, and the local control unit includes vehicle-mounted cameras and an industrial control computer provided on the fixed bracket on both sides of the rotary collection head. During the operation, the vehicle-mounted cameras analyze the visual signals of the materials to be mined in the collection area in real time through a convolutional neural network, identify their density distribution, and feedback to the industrial control computer to adjust the power supply of the collection head motor and the vibrating screen motor.

[0013] Preferably: the material box is supported on the rear side of the fixed bracket by a main body bracket, the top of the material box is open, and the bottom is a detachable material box screen; a vibrating screen-material box connecting piece is provided between the material box and the vibrating screen, and both ends of the vibrating screen-material box connecting piece are respectively hinged to the material box and the vibrating screen.

[0014] Preferably, the cross section of the vibration screen presents a continuous and multi-stage "V" shape of varying lengths, wherein the short side is close to the vertical direction and the long side forms an angle of 60° with the vertical direction.

[0015] Preferably, the vibrating screen is divided into two layers, an upper layer and an lower layer, which are arranged closely together, and the lower layer is driven by a built-in micro motor. The overlapping positions of the upper and lower screen holes are staggered by the horizontal relative movement between the lower and upper layers, thereby achieving continuous and rapid adjustment of the overlapping area of the upper and lower screen holes from fully open to fully closed.

[0016] Preferably, the sand shoveling board is hinged to the fixed bracket via a plurality of sand shoveling board hinges, so that the sand shoveling board can rotate relative to the fixed bracket to adjust the angle of entry of the sand shoveling board into the soil.

[0017] Preferably, the angle between two adjacent rods of the rake teeth is 20°, and the transmission belt is a leather synchronous belt.

[0018] Preferably, an arc-shaped dust cover and a front cover plate are arranged in sequence above the rotary collection head, and the front cover plate is connected to the fixed bracket.

[0019] In a second aspect, the present invention provides a collection-screening method for cleaning up objects to be collected on a beach, based on the collection-screening device described in the first aspect of the present invention, the method comprises:

[0020] The collection-screening device is installed on the beach cleaning equipment. The beach cleaning equipment moves along the planned walking path. The rake teeth of the rotary collection head rotate back and forth to lift the objects to be collected to the sand surface and preliminarily screen out the sand particles.

[0021] The material to be mined enters the vibrating screen area along with the sand shoveling plate. The vibrating screen motor gives the front vibration transmission component a certain frequency of vibration parallel to the direction of the vibrating screen through the motor transmission component, driving the vibrating screen to vibrate back and forth. The relatively large-scale material to be mined moves upward in the vibrating screen due to inertia and finally falls into the material box; the smaller-scale sand and soil particles fall into the pores of the vibrating screen and are backfilled into the beach bottom.

[0022] At the same time, the vibrating screen drives the material box to vibrate horizontally repeatedly through the vibrating screen-material box connector, so that the tiny particles that fall into the material box pass through the sieve holes at the bottom of the material box during vibration and backfill the beach bottom, ensuring that only the materials to be collected exist in the material box.

[0023] As a preferred embodiment, the vehicle-mounted camera controls the rotation speed of the rotary collection head and the frequency of the vibrating screen through the industrial computer based on the feedback algorithm according to the density of the objects to be collected under the rotary collection head, specifically:

[0024] When the on-board camera detects that the concentration of the objects to be collected in front is greater than the density threshold, the collection-screening device switches to the fine operation mode: the power supply of the collection head motor and the vibrating screen motor is increased, and the rotation speed of the rotary collection head and the frequency of the vibrating screen are increased;

[0025] When the on-board camera detects that the concentration of the objects to be collected in front is less than the density threshold, the collection-screening device switches to fast cruising mode: the power supply of the collection head motor and the vibrating screen motor is reduced, and the rotation speed of the rotary collection head and the frequency of the vibrating screen are reduced.

[0026] The present invention adopts the above technical solution, which has the following advantages:

[0027] 1. The collection-screening device provided by the present invention adopts an integrated high-efficiency mechanical structure, which greatly improves the collection and screening efficiency of the objects to be collected on the beach. The rotary collection head adopts rake teeth arranged in an equidistant spiral, which has a simple structure, reduces the collection area, and reduces the forward resistance and energy consumption. During collection, the rod-shaped rake teeth can automatically draw in the larger objects to be collected, and rake up the garbage, gravel, ore and / or shells under the sand surface in turn, and preliminarily screen out the smaller sand and soil. This mode makes the device evenly stressed and the height from the bottom stable, which is conducive to obtaining a higher collection efficiency, stable equipment operation, and extending the life of the motor and gears. Contrary to the rotation direction of the collection head of the common cleaning device, the rake teeth rotate from the bottom to the front of the operation to prevent the stirred sand and dust from entering the mechanical structure behind the collection head, causing malfunctions. This arrangement can also make the objects to be collected on both sides converge to the middle, loosen the harder beach bottom, and further reduce the travel resistance.

[0028] 2. The adjustable sand shovel board at the rear side of the rotary collection head of the present invention can lift the collected materials raked by the rake teeth into the vibrating screen by setting a certain attack angle. The unique "V"-shaped screen of the vibrating screen drives the vibration transmission component to vibrate back and forth through the motor, so that the garbage and gravel waiting to be collected fall into the material box due to inertia, and the sand falls into the gap of the screen to fill the beach, realizing efficient, smooth and thorough screening of the collected materials and sand, reducing labor costs and the complexity of the processing process, thereby significantly enhancing the beach cleaning capacity.

[0029] 3. The present invention is provided with an on-vehicle camera, which can analyze in real time the visual signals of the objects to be mined in the acquisition area through a convolutional neural network during operation, identify their density distribution, and feedback it to the local control unit to adjust the power supply of the acquisition head motor and the vibrating screen motor, so as to achieve immediate discovery and acquisition. It can also adjust the aperture of the sieve holes according to the scale of the objects to be mined, making the entire acquisition-screening process more intelligent and efficient, reducing the degree of manual intervention, and improving the automation level. Description of the Drawings

[0030] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0031] Figure 1 Is the bottom view of the acquisition-screening device provided in Embodiment 1 of the present invention;

[0032] Figure 2 Is the perspective view of the acquisition-screening device provided in Embodiment 1 of the present invention;

[0033] Figure 3 Is the schematic diagram of the movement of the objects to be mined near the rotary acquisition head during the operation of the present invention;

[0034] Figure 4 Is the schematic diagram of the movement of the objects to be mined near the sand shovel plate during the operation of the present invention;

[0035] Figure 5 Is the schematic diagram of the movement of the objects to be mined at the vibrating screen during the operation of the present invention;

[0036] Figure 6 Is the schematic diagram of the aperture change in the double-layer screen provided in Embodiment 1 of the present invention.

[0037] The reference numerals in the drawings are as follows:

[0038] 1 Rotary acquisition head; 2 Sand shovel plate; 3 Vibrating screen; 4 Material box; 5 Fixed bracket; 6 Vibrating screen-material box connecting piece; 7 Main body bracket; 8 Sand shovel plate hinge; 9 On-vehicle camera; 10 Dust-proof cover; 11 Front cover plate; 12 Objects to be mined; 13 Sandy soil particles; 14 Sand surface;

[0039] 1-1 Rotary drive rod; 1-2 Rake teeth; 1-3 Acquisition head motor; Transmission belt 1-4; 3-1 Vibrating screen mesh; 3-2 Vibration transmission component; 3-3 Motor drive component; 3-4 Vibrating screen motor; Detailed Embodiments

[0040] To make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the specific embodiments of the present invention with reference to the accompanying drawings. Although the accompanying drawings show exemplary embodiments of the present invention, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0043] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or integral; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0045] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0046] The collection-sieving device for cleaning beach materials to be mined provided by the present invention includes a rotary collection head, a sand shoveling plate, a vibrating screen, and a material box; the rotary collection head drives the main rod through a motor, drives the reciprocating rotation of the helically arranged rake teeth, and turns the materials to be mined in the sand to the surface layer; the inclined sand shoveling plate guides the materials to be mined - sand into the vibrating screen, and the vibrating screen realizes horizontal reciprocating vibration through the front and rear double vibration transmission components, and the power is provided by the transmission component driven by an independent motor, effectively separating the sand from the materials to be mined; the sieved materials to be mined slide into the tail material box through the vibrating screen for centralized collection. The present invention adopts a modular design, and through the synergistic effect of the rotary rake teeth and the vibrating screen, it realizes the automatic collection, efficient sieving, and centralized recovery of beach materials to be mined, and has the characteristics of compact structure, strong operation continuity, and high environmental adaptability.

[0047] Next, in conjunction with the drawings, a detailed description will be given of the collection-sieving device and method for cleaning beach materials to be mined provided by the embodiments of the present invention.

[0048] Embodiment 1

[0049] Please refer to Figure 1 、 Figure 2, the collection and screening device for cleaning beach materials to be mined provided in this embodiment includes a rotary collection head 1, a sand shovel plate 2, a vibrating screen 3, a material box 4 and a fixed bracket 5. The rotary collection head 1 includes a rotary drive rod 1-1, rake teeth 1-2, a collection head motor 1-3 and a transmission belt 1-4. The rotary drive rod 1-1 is rotatably installed on the front side of the fixed bracket 5. The rake teeth 1-2 are composed of a number of rods arranged in an equidistant spiral pattern on the rotary drive rod 1-1, and the angle between adjacent two rods is 20°. The collection head motor 1-3 is arranged on the fixed bracket 5 and is in transmission connection with the rotary drive rod 1-1 through the transmission belt 1-4. Thus, the collection head motor 1-3 drives the rotary drive rod 1-1 to rotate synchronously through the transmission belt 1-4, and then drives the rake teeth 1-2 to reciprocate in a downward-to-upward direction. Through the above settings, during the operation of the rotary collection head 1, the materials to be mined 12 are successively raked up from below the sand surface 14 by the rake teeth 1-2 and lifted to the surface layer along with the rotation of the rotary drive rod 1-1 (please refer to Figure 3 ), so as to facilitate subsequent collection. This mode makes the device evenly stressed and the ground clearance stable, which is beneficial to obtaining a high collection efficiency, the device runs smoothly, and the service life of the collection head motor 1-3 and the rake teeth 1-2 is extended; at the same time, the shape of the rake teeth 1-2 rods and the large interval significantly reduce the effective area of the collection part during the traveling process, reduce the traveling resistance, and reduce the energy consumption; in addition, the rod-shaped rake teeth 1-2 with different phases can automatically roll the materials to be mined 12 with a relatively larger scale than the sand into the rotary collection head 1, and the large gap between adjacent rake teeth 1-2 can naturally let the sand particles with a smaller scale pass through, realizing the preliminary screening of the materials to be mined - sand particles, and can also make the materials to be mined 12 on both sides converge towards the middle, loosen the harder beach bottom, and further reduce the traveling resistance; furthermore, contrary to the rotation direction of the collection head of the traditional cleaning device, the rake teeth 1-2 rotate in a downward-to-upward direction, which can also prevent the agitated dust from entering the mechanical structure behind the rotary collection head 1 and causing failures. In addition, the transmission belt 1-4 can adopt a leather synchronous belt. Compared with the traditional sprocket, the leather synchronous belt can slip when exceeding the resistance threshold, which can not only avoid the damage of the rake teeth 1-2 caused by hitting beach stones, but also is not easily blocked by fine dust, improving the reliability of the operation.

[0050] Please refer to Figure 1 , Figure 4 , the sand shovel plate 2 is arranged on the fixed bracket 5 behind the rotary collection head 1. The sand shovel plate 2 is inclined as a whole towards the moving direction, and the front end of the sand shovel plate 2 is slightly lower than the sand surface 14. The materials to be mined 12 lifted to the sand surface 14 by the rotary collection head 1 are further lifted due to an obliquely upward force at the sand shovel plate 2 and enter the area of the vibrating screen 3 behind.

[0051] Please refer to Figure 1 , Figure 2, the vibrating screen 3 is arranged below the fixed support 5 behind the sand shoveling plate 2, and includes a vibrating screen mesh 3-1, a vibration transmission assembly 3-2, a motor transmission assembly 3-3, and a vibrating screen motor 3-4. The vibrating screen mesh 3-1 is obliquely arranged with the front end lower and the rear end higher below the fixed support 5, and the front end of the vibrating screen mesh 3-1 is communicated with the rear end of the sand shoveling plate 2. The vibration transmission assemblies 3-2 are two groups arranged front and rear. The front vibration transmission assembly 3-2 is connected between the motor transmission assembly 3-3 and the front end of the vibrating screen mesh 3-1, and the rear vibration transmission assembly 3-2 is connected between the fixed support 5 and the rear end of the vibrating screen mesh 3-1 to suspend the vibrating screen mesh 3-1 on the fixed support 5. The vibrating screen motor 3-4 is arranged on the fixed support 5 and is in transmission connection with the front vibration transmission assembly 3-2 through the motor transmission assembly 3-3. Thus, the vibrating screen motor 3-4 drives the vibrating screen mesh 3-1 to reciprocate through the motor transmission assembly 3-3 and the front vibration transmission assembly 3-2.

[0052] Please refer to Figure 1 , the material box 4 is supported on the rear side of the fixed support 5 through the main body support 7 and is located below the rear end of the vibrating screen mesh 3-1 for collecting the material to be mined 12 after screening. The top of the material box 4 is open, and the bottom is a detachable material box screen. A vibrating screen - material box connecting piece 6 is arranged between the material box 4 and the vibrating screen 3, and both ends of the vibrating screen - material box connecting piece 6 are respectively hinged to the material box 4 and the vibrating screen 3. Through the above settings, different from the traditional mode, the material box 4 is no longer fixed on the fixed support 5. With the support of the main body support 7, the reciprocating horizontal vibration in the direction of the vibrating screen 3 can be converted into the synchronous reciprocating horizontal vibration of the material box 4, so that the fine particles such as sand and dust falling into the material box 4 can be backfilled into the beach bottom through the sieve holes at the bottom of the material box 4 during vibration, ensuring that only the material to be mined 12 exists in the material box 4 and avoiding the accumulation of sand and dust in the stationary material box 4, which affects the storage capacity of the material box 4 and significantly improves the cleaning efficiency of a single operation. After the operation is completed, the material box screen can be pulled out to take out the material to be mined 12.

[0053] In the above embodiment, preferably, please refer to Figure 5 , the cross-section of the vibrating screen mesh 3-1 presents a continuous and multi-level "V" shape with uneven lengths, where the short side is close to the vertical direction and the long side forms a 60° angle with the vertical direction. Through the above settings, the material to be mined 12 with relatively large dimensions can be trapped in the "V" - shaped groove and is difficult to move downward. With the vibration of the vibrating screen mesh 3-1, the material to be mined 12 moves upward due to inertia and then falls into a "V" - shaped groove with a higher level, and finally falls into the material box 4; on the contrary, the sand and soil particles 13 with smaller dimensions directly fall into the sieve holes of the vibrating screen mesh 3-1 and are backfilled into the beach bottom to avoid soil erosion. More preferably, the vibrating screen mesh 3-1 is divided into two upper and lower layers arranged closely, and the overlapping area of the sieve holes is adjusted according to the size of the material to be mined 12; specifically, please refer to Figure 6The lower vibrating screen 3-1 is driven by a built-in micro motor (not shown in the figure). The overlapping positions of the upper and lower screen holes are staggered through the horizontal relative movement between the lower vibrating screen 3-1 and the upper vibrating screen 3-1, so that the overlapping area of the upper and lower screen holes can be continuously and quickly adjusted from 100% (fully open) to 0% (fully closed), making the device widely applicable to various common objects to be collected, including garbage, gravel, ore and / or shells. The whole process is efficient and smooth, which greatly improves the collection and screening efficiency of beach objects to be collected.

[0054] In the above embodiments, preferably, please refer to Figure 1 The sand shoveling board 2 is hinged to the fixed bracket 5 through a plurality of sand shoveling board hinges 8, so that the sand shoveling board 2 can rotate relative to the fixed bracket 5 to adjust the entry angle of the sand shoveling board 2. Through the above-mentioned settings, the entry angle of the sand shoveling board 2 can be adjusted according to different geological conditions, avoiding the increase of the energy consumption of the device due to meaningless obstruction of the sand shoveling board 2. Specifically, when the geology is relatively hard (with a large shear strength), the collection efficiency of the rotary collection head 1 is low, and the entry angle of the sand shoveling board 2 can be increased at this time; and when the geology is relatively soft, the entry angle of the sand shoveling board 2 can be appropriately reduced.

[0055] In the above embodiments, preferably, please continue to refer to Figure 1 The collection-screening device also includes a local control unit, which realizes the identification of the objects to be collected and the adjustment of the device posture at a close distance, and at the same time integrates the input information to adjust the power supply of the collection head motor 1-3 and the vibration screen motor 3-4 to control the rotation speed of the rotary collection head 1 and the frequency of the vibration screen 3 respectively, so as to realize the discovery and collection, and avoid power waste. Specifically, the local control unit includes a vehicle-mounted camera 9 and an industrial computer (not shown in the figure) arranged on the fixed brackets 5 on both sides of the rotary collection head 1. During the operation, the vehicle-mounted camera 9 analyzes the visual signals of the objects to be collected 12 in the collection area in real time through a convolutional neural network (CNN), identifies its density distribution, and feeds back to the industrial computer to adjust the power supply of the collection head motor 1-3 and the vibration screen motor 3-4, realizing the integration of search-identification-collection technology, and greatly improving the intelligence and automation level of the collection-screening device.

[0056] In the above embodiment, preferably, please continue to refer to Figure 1 An arc-shaped dust cover 10 and a front cover plate 11 are arranged in sequence above the rotary collection head 1. The front cover plate 11 is connected to the fixed bracket 5 to prevent the stirred dust from entering the core area of the collection-screening device, reducing the risk of failure and avoiding exposure of the mechanical structure.

[0057] Example 2

[0058] Based on the collection and screening device provided in the above-mentioned Embodiment 1, this embodiment also provides a collection and screening method for cleaning beach materials to be collected, including:

[0059] S100. Install the collection and screening device on the beach cleaning equipment. The beach cleaning equipment travels along the planned walking path. The rake teeth 1-2 of the rotary collection head 1 rotate reciprocally, lifting the materials to be collected 12 to the sand surface 14 and preliminarily screening out the sand particles 13 at the same time.

[0060] S200. The materials to be collected 12 enter the vibrating screen 3 area along with the sand shovel plate 2. The vibrating screen motor 3-4 gives a certain frequency and vibration parallel to the direction of the vibrating screen 3 to the front vibration transmission component 3-2 through the motor transmission component 3-3, driving the vibrating screen mesh 3-1 to vibrate reciprocally. The materials to be collected 12 with relatively larger scales get stuck in the "V"-shaped groove of the vibrating screen mesh 3-1 and move upward due to inertia, and finally fall into the material box 4. The sand particles with relatively smaller scales fall into the pores of the vibrating screen mesh 3-1 and are backfilled into the beach substrate.

[0061] S300. At the same time, the vibrating screen 3 drives the material box 4 to vibrate horizontally synchronously and repeatedly through the vibrating screen - material box connecting piece 6, so that the tiny particles such as sand and dust falling into the material box 4 are backfilled into the beach substrate through the sieve holes at the bottom of the material box 4 during vibration, ensuring that only the materials to be collected 12 are present in the material box 4.

[0062] S400. After the operation is completed, the material box sieve mesh at the bottom of the material box 4 is taken out to obtain the materials to be collected 12.

[0063] In the above-mentioned embodiment, preferably, when performing step S100, the vehicle-mounted camera 9 controls the rotation speed of the rotary collection head 1 and the frequency of the vibrating screen 3 through the industrial control computer based on the feedback algorithm according to the density of the materials to be collected below the rotary collection head 1 identified. The higher the density of the materials to be collected, the faster the rotation speed of the rotary collection head 1 and the greater the frequency of the vibrating screen 3. Specifically, when the vehicle-mounted camera 9 detects that the aggregation degree of the materials to be collected in front is greater than the density threshold, the collection and screening device switches to the fine operation mode: increasing the power supply of the collection head motor 1-3 and the vibrating screen motor 3-4, and increasing the rotation speed of the rotary collection head 1 and the frequency of the vibrating screen 3. When the vehicle-mounted camera 9 detects that the aggregation degree of the materials to be collected in front is less than the density threshold, the collection and screening device switches to the fast cruising mode: reducing the power supply of the collection head motor 1-3 and the vibrating screen motor 3-4, and reducing the rotation speed of the rotary collection head 1 and the frequency of the vibrating screen 3. This dynamic real-time speed regulation strategy reduces the energy consumption per unit area and improves the collection and screening efficiency of the materials to be collected such as garbage, gravel, ore or shellfish.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present application, and they should all be covered by the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A collection-sieving device for cleaning beach materials to be mined, characterized in that, include: Fixed bracket; Rotating collection head, including: A rotary active rod, mounted on the front side of the fixed bracket; The rake teeth are composed of a plurality of rods which are equidistantly and spirally arranged on the rotary active rod; A collection head motor is arranged on the fixed bracket; A transmission belt is connected between the collecting head motor and the rotary active rod, and the collecting head motor drives the rotary active rod to rotate synchronously through the transmission belt, thereby driving the rake teeth to reciprocate from bottom to top; A sand shoveling board is arranged on the fixed bracket located behind the rotary collecting head, the sand shoveling board is tilted toward the moving direction as a whole, and the front end of the sand shoveling board is slightly lower than the sand surface; A vibrating screen is arranged below the fixed support behind the sand shoveling plate, and comprises: A vibrating screen is arranged obliquely below the fixed bracket with a lower front and a higher rear, and the front end of the vibrating screen is connected to the rear end of the sand shoveling plate; The vibration transmission assembly is composed of two groups arranged front and back, the front vibration transmission assembly is connected between the motor transmission assembly and the front end of the vibration screen, and the rear vibration transmission assembly is connected between the fixed bracket and the rear end of the vibration screen to suspend the vibration screen on the fixed bracket; A vibrating screen motor is arranged on the fixed bracket and is connected to the front vibration transmission assembly through the motor transmission assembly. The vibrating screen motor drives the vibrating screen to reciprocate horizontally through the motor transmission assembly and the front vibration transmission assembly. A material box, arranged at the rear side of the fixed bracket and located below the rear end of the vibrating screen, for collecting the screened materials to be collected; It also includes a local control unit, which includes a vehicle-mounted camera and an industrial computer arranged on the fixed brackets on both sides of the rotary collection head. During operation, the vehicle-mounted camera analyzes the visual signals of the objects to be collected in the collection area in real time through a convolutional neural network, identifies the density distribution thereof, and feeds back to the industrial computer to adjust the power supply of the collection head motor and the vibrating screen motor; The material box is supported on the rear side of the fixed bracket by the main body bracket, the top of the material box is open, and the bottom is a detachable material box screen; a vibrating screen-material box connecting piece is provided between the material box and the vibrating screen, and the two ends of the vibrating screen-material box connecting piece are respectively hinged to the material box and the vibrating screen; The cross section of the vibration screen presents a continuous and multi-level "V" shape with varying lengths, wherein the short side is close to the vertical direction and the long side forms an angle of 60° with the vertical direction.

2. The collection and screening device according to claim 1, wherein The vibrating screen is divided into two layers, an upper layer and an lower layer, which are arranged closely together. The lower layer is driven by a built-in micro motor. The overlapping positions of the upper and lower screen holes are staggered through the horizontal relative movement between the lower and upper layers, thereby achieving continuous and rapid adjustment of the overlapping area of the upper and lower screen holes from fully open to fully closed.

3. The collection and screening device according to claim 2, wherein The sand shoveling board is hinged to the fixed bracket through a plurality of sand shoveling board hinges, so that the sand shoveling board can rotate relative to the fixed bracket to adjust the soil entry angle of the sand shoveling board.

4. The collection and screening device according to claim 3, characterized in that, The angle between two adjacent rods of the rake teeth is 20°, and the transmission belt is a leather synchronous belt.

5. The collection and screening device according to claim 4, characterized in that An arc-shaped dust cover and a front cover plate are sequentially arranged above the rotary collecting head, and the front cover plate is connected to the fixed bracket.

6. A collection-screening method for cleaning beach materials to be mined, based on the collection-screening device according to any one of claims 2 to 5, characterized in that, The method includes: Installing the collection-screening device on the beach cleaning equipment. The beach cleaning equipment travels along the planned walking path. The rake teeth of the rotary collecting head rotate reciprocally to lift the objects to be collected to the sand surface and preliminarily screen out sand and soil particles at the same time; The objects to be collected enter the vibrating screen area along with the sand shovel plate. The vibrating screen motor gives a certain frequency and vibration parallel to the direction of the vibrating screen to the front vibration transmission component through the motor transmission component, driving the vibrating screen mesh to vibrate reciprocally. The objects to be collected with relatively larger scales move upward due to inertia in the vibrating screen mesh and finally fall into the material box; the sand and soil particles with relatively smaller scales fall into the pores of the vibrating screen mesh and are backfilled into the beach sediment; At the same time, the vibrating screen drives the material box to vibrate horizontally synchronously and repeatedly through the vibrating screen-material box connecting piece, so that the tiny particles falling into the material box are backfilled into the beach sediment through the sieve holes at the bottom of the material box during vibration, ensuring that only the objects to be collected exist in the material box.

7. The acquisition-screening method according to claim 6, characterized in that, The vehicle-mounted camera controls the rotation speed of the rotary collecting head and the frequency of the vibrating screen through the industrial control computer based on the feedback algorithm according to the density of the objects to be collected below the rotary collecting head recognized, specifically: When the vehicle-mounted camera detects that the aggregation degree of the objects to be collected ahead is greater than the density threshold, the collection-screening device switches to the fine operation mode: increasing the power supply of the collecting head motor and the vibrating screen motor, and increasing the rotation speed of the rotary collecting head and the frequency of the vibrating screen; When the vehicle-mounted camera detects that the aggregation degree of the objects to be collected ahead is less than the density threshold, the collection-screening device switches to the fast cruising mode: reducing the power supply of the collecting head motor and the vibrating screen motor, and reducing the rotation speed of the rotary collecting head and the frequency of the vibrating screen.

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