A mining rake device and a mining vehicle

Abstract

The present invention relates to a mining rake device and a mining vehicle, which are used to be arranged at a collection port and include: a rake body assembly, the rake body assembly is arranged on one side of the collection port along the horizontal direction, and the rake body assembly includes a first spiral part; a rotation assembly, the rotation assembly is connected to the rake body assembly and drives the first spiral part to rotate around the extension direction of the rake body assembly, and the first spiral part rotates clockwise or counterclockwise around the direction towards the collection port to push the ore towards the collection port. Thereby, the problems of the existing mining vehicle with a small collection range, low mining efficiency, and difficulty in separating the mixture of ore and mud, sand, etc. are solved.

Description

Technical Field

[0001] The invention relates to the technical field of underwater mining, and in particular to a mining rake device and a mining vehicle. Background Art

[0002] The ocean bottom is rich in mineral resources. With the advancement of science and technology and the gradual reduction of easily mined mineral resources on land, seabed mining is gaining increasing attention.

[0003] When the existing seabed mining excavator is performing seabed mining operations, the mining excavator moves forward and collects the metal nodules (ore) in front of the collecting port through the collecting port in front. However, the existing mining excavator only collects through the collecting port, and its collection range is the ore nodules in the direction facing the collecting port, so the collection range is small and the mining efficiency is low.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a mining rake device and a mining vehicle, aiming to solve the problems of small collection range and low mining efficiency of the existing mining vehicles.

[0006] The technical solution of the present invention is as follows:

[0007] A mining rake device is provided for being arranged at a collecting port, wherein the device comprises:

[0008] A rake body assembly, the rake body assembly is horizontally extended and arranged on the side of the collecting port, and the rake body assembly includes a first spiral portion;

[0009] A rotating assembly is connected to the rake body assembly and drives the first spiral portion to rotate around the extension direction of the rake body assembly, so as to push the ore toward the collection port through rotation.

[0010] The first spiral part rotates clockwise or counterclockwise in a direction toward the collecting port to dig out the ore from the seabed, and pushes the ore toward the collecting port through the rotating spiral track.

[0011] Optionally, the mining rake device further comprises a swinging assembly, which is arranged on a side of the collecting port and connected to the rake body assembly, and drives the rake body assembly to swing on a horizontal plane and / or in an up-and-down direction.

[0012] Optionally, the rake body assembly further comprises a main rotating shaft, one end of which is connected to the rotating assembly and the other end of which is extended in a direction away from the collecting port;

[0013] The first spiral part includes a plurality of first rake nails, and the plurality of first rake nails are arranged at intervals on the outer wall of the main rotating shaft along a spiral trajectory.

[0014] Optionally, a second spiral part is further arranged on the main rotating shaft;

[0015] The distance from the outer edge of the second spiral part to the central axis of the main rotating shaft is less than the distance from the outer edge of the first spiral part to the central axis of the main rotating shaft.

[0016] Optionally, the second spiral part includes a plurality of second rake nails, and the plurality of second rake nails are arranged at intervals along a spiral trajectory; or / and

[0017] The second spiral part includes a rotating blade, and the rotating blade extends along a spiral trajectory.

[0018] Optionally, the second spiral part includes a second rake nail, and the midline of the second rake nail is inclined to the cross-section of the main rotating shaft.

[0019] Optionally, the second spiral part includes a rotating blade, and the first rake nails are distributed on the outer wall of the rotating blade.

[0020] Optionally, the distance from the outer edge of the first spiral part to the outer wall surface of the main rotating shaft is greater than 30 mm; the distance from the outer edge of the second spiral part to the outer wall surface of the main rotating shaft is less than 30 mm.

[0021] Optionally, the mining rake device further includes:

[0022] A moving component, which is arranged on the side of the collection port along the vertical direction, and the moving component is connected to the rake body component and drives the rake body component to move up and down.

[0023] Optionally, there are two rake body components, rotating components and swinging components respectively;

[0024] The two rake body components are respectively located on both sides of the collection port in the left-right direction.

[0025] Based on the same concept, this solution also proposes a mining vehicle, which includes a mining vehicle body, a collection port is opened on the mining vehicle body, and the mining rake device as described above.

[0026] Beneficial effects: In a mining rake device and a mining vehicle according to the present invention, the rake body assembly is arranged to extend horizontally on the side of the collection port, and the rake body assembly swings by a certain angle in front of the side of the collection port. When the mining vehicle is moving forward, the area covered by the rake body assembly is larger than the area covered by the collection port. The rotating assembly is connected to the rake body assembly and drives the first spiral part to rotate around the extension direction of the rake body assembly. The rotating first spiral part digs up large-sized nodules on the seabed from the sediment. The rotating assembly enables the first spiral part to rotate clockwise or counterclockwise in the direction towards the collection port, and the first spiral part pushes / rolls the dug-up nodules towards the middle of the driving path of the mining vehicle, that is, in front of the collection port of the mining vehicle. Thereby, the nodule minerals are collected through the collection port. When the mining vehicle is moving forward, the ore area that the collection port can collect not only includes the area in the forward direction of the collection port, but also the area covered by the rake body assembly. Thereby, in one movement of the mining vehicle, ores in more areas can be collected, achieving the advantages of a large collection range and high mining efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the front view of an embodiment of the mining rake device of the present invention;

[0028] Figure 2 is the structural schematic diagram of an embodiment of the mining rake device of the present invention;

[0029] Figure 3 is the left view of a structure of the rake body assembly of an embodiment of the mining rake device of the present invention;

[0030] Figure 4 is the mining analysis diagram of the embodiment of the mining rake device of the present invention applied in area A and area B;

[0031] Figure 5 is the front view of a structure of the rake body assembly of an embodiment of the mining rake device of the present invention;

[0032] Figure 6 is the front view of another structure of the rake body assembly of an embodiment of the mining rake device of the present invention;

[0033] Figure 7 is the front view of a third structure of the rake body assembly of an embodiment of the mining rake device of the present invention;

[0034] Figure 8 is the structural schematic diagram of an embodiment of the mining vehicle of the present invention;

[0035] Figure 9 is Figure 8 the enlarged view of part A.

[0036] Description of reference numerals: 10, the main body of the ore car; 100, the rake assembly; 110, the main rotating shaft; 120, the first spiral part; 121, the first rake nail; 130, the second rotating part; 131, the second rake nail; 132, the rotating blade; 200, the rotating assembly; 300, the swinging assembly; 310, the swinging bracket; 320, the driving oil cylinder; 400, the collection port; 500, the moving assembly; 510, the hydraulic lifting mechanism. Detailed implementation manners

[0037] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0039] When the existing subsea mining and excavation machinery conducts subsea mining operations, generally the mining and excavation machinery moves forward, and through the collection port located in the front, the metal nodules (ores) located in front of the collection port are collected. However, the existing mining and excavation machinery only collects through the collection port, and the opening range of the collection port is small. Its collection range is the ore nodules in the direction directly opposite to the collection port. When the ore car conducts one forward mining, its collection range is small and the mining efficiency is low. If only the width of the collection port is simply increased, a large amount of silt will be sent into the collection port, increasing a large workload for the subsequent conveying and separating of minerals by the mining and excavation machinery, and greatly reducing the entire mineral mining process.

[0040] Based on the above various problems, such as Figure 1 、 Figure 2As shown in the figure, in this embodiment, a mining rake device is provided, which is applied to a mining vehicle and is used to be arranged at the collection port 400 of the mining vehicle body 10. For the convenience of structural description, the forward and backward direction of the mining vehicle is defined as the front and rear direction, the direction perpendicular to the front and rear direction in the horizontal plane is defined as the left and right direction, and the direction perpendicular to the horizontal plane is defined as the vertical direction. The mining vehicle moves in the front and rear direction. The mining rake device in this embodiment includes: a rake body assembly 100 and a rotating assembly 200. The rake body assembly 100 is arranged on the side of the collection port 400 in the horizontal direction. The rake body assembly 100 includes a first spiral part 120. Specifically, taking the example of only one rake body assembly 100 being provided, the rake body assembly 100 is arranged on one side of the collection port 400 in the left and right direction, and the rake body assembly 100 extends in the direction away from the collection port 400 in the horizontal plane. When the rake body assembly 100 swings out of the front area of the collection port 400, since the mining vehicle moves forward, the area swept by the rake body assembly 100 increases the area swept by the collection port 400, thereby expanding the collection range of the mining vehicle for collecting ore. The rotating assembly 200 is connected to the rake body assembly 100 and drives the first spiral part 120 to rotate around the extending direction of the rake body assembly 100. The first spiral part 120 rotates clockwise or counterclockwise in the direction towards the collection port 400, excavates the ore from the seabed surface, and pushes the ore towards the collection port through the rotating spiral track. Specifically, taking the direction facing the collection port as the reference, the left hand side is defined as left and the right hand side is defined as right. When the rake body assembly 100 is arranged on the left side, looking from the distal end towards the collection port in the direction towards the collection port 400, the rake body assembly rotates counterclockwise, so that the first spiral part 120 can excavate the ore from the seabed surface. When the rake body assembly 100 is arranged on the right side, looking from the distal end towards the collection port in the direction towards the collection port 400, the rake body assembly rotates clockwise, so that the first spiral part 120 can excavate the ore from the seabed surface. The excavated ore is pushed towards the collection port through the spiral track formed by rotation.

[0041] Through the above solution, the rake body assembly 100 is arranged to extend horizontally on one side of the collection port 400. The rake body assembly 100 swings out a certain angle in front of the side surface of the collection port 400. When the mining vehicle is moving forward, the area covered by the rake body assembly 100 is larger than the area covered by the collection port 400. The rotating assembly 200 is connected to the rake body assembly 100 and drives the first spiral part 120 to rotate around the extension direction of the rake body assembly 100. The rotating first spiral part 120 digs up large-sized nodules on the seabed from the sediment. The rotating assembly 200 enables the first spiral part 120 to rotate clockwise or counterclockwise around the direction towards the collection port 400. The first spiral part 120 pushes / rolls the dug-up nodules towards the middle of the driving path of the mining vehicle, that is, in front of the collection port 400 of the mining vehicle, so as to collect nodule minerals through the collection port 400. When the mining vehicle is moving forward, the ore area that the collection port 400 can collect includes not only the area in the forward direction of the collection port 400, but also the area covered by the rake body assembly 100. Thus, in one movement of the mining vehicle, more ore in a larger area can be collected, achieving the advantages of a large collection range and high mining efficiency.

[0042] Based on the above structure, the specific structure of this embodiment is as follows:

[0043] As Figure 1 、 Figure 2 shown, the mining rake device further includes a moving assembly 500, and the moving assembly 500 is movably arranged on one side of the collection port 400. Specifically, one end of the moving assembly 500 is hinged to the mining vehicle, and the other end extends forward in the front-rear direction to the front of the vehicle body 10 and drives the rake body assembly 100. As Figure 8 shown, the moving assembly 500 is connected to the rake body assembly 100 and drives the rake body assembly 100 to move in the up-down direction. A hydraulic lifting mechanism 510 is arranged on the moving assembly 500. The rear end of the moving assembly 500 is hinged to the vehicle body 10 of the mining vehicle. The hydraulic lifting mechanism is arranged on the vehicle body 10 of the mining vehicle and is connected to the moving assembly. In this way, through the push of the hydraulic lifting mechanism 510, one end of the moving assembly 500 located at the collection port 400 (rotating around the hinge position at the rear end) can move up and down. The rake body assembly can be lifted upward or lowered downward through the moving assembly, so that the rake body assembly is at different heights. Thus, the rake body assembly 100 can be retracted upward, reducing the length of the mining vehicle in the front-rear direction, minimizing the storage floor area of the mining vehicle, thereby reducing the size of the equipment for deploying and recovering the mining vehicle and the deck space requirements on the surface mother ship or the deployment and recovery platform.

[0044] The mining rake device may also not adopt the moving assembly 500. In this case, the rake body assembly 100 is fixed in the height direction, and ore can also be collected.

[0045] As Figure 8 , Figure 9 shown, in addition to the rake body assembly 100 being able to be directly lifted significantly in the up and down direction through the moving assembly 500 to achieve the retraction function. A swinging assembly 300 can also be provided on the moving assembly 500 to achieve swinging on the horizontal plane and / or swinging in the up and down direction through the swinging assembly 300. When swinging in the up and down direction, the rake body assembly 100 is slightly lifted or lowered, so that the swinging assembly 300 gives the rake body assembly 100 a certain amount of movement space in the up and down direction. It has the ability to keep close to the ground under the condition of the change of the seabed shape to ensure continuous mining / separation efficiency along the mining sweeping width (from right to left). When swinging on the horizontal plane, that is, the rake body assembly 100 swings left and right, so that the unfolding angle of the rake body assembly 100 at the collection port can be adjusted and adaptively adjusted according to mining requirements.

[0046] The swinging assembly 300 is arranged on the side in the left and right direction of the collection port 400 and is connected to the rake body assembly 100. The swinging assembly 300 is arranged at one end of the moving assembly 500 facing the collection port 400. Different structures are provided according to the various functions of the swinging assembly 300.

[0047] As Figure 8 , Figure 9 shown, in the first structure, when the swinging assembly 300 only realizes swinging in the up and down direction, the swinging assembly 300 includes a swinging bracket 310 and a driving oil cylinder 320. Both ends of the swinging bracket 310 are hinged to the moving assembly 500, one end of the driving oil cylinder 320 is connected to the moving assembly 500 and the other end is hinged to the swinging bracket 310. The rake body assembly 100 and the rotating assembly 200 are connected to the swinging bracket 310. When the driving oil cylinder 320 is started, it pushes the swinging bracket 310 to rotate around the horizontal axis, so that the swinging bracket 310 rotates up and down, thereby driving the rotating assembly 200 and the rake body assembly 100 to move up and down through the swinging assembly 300.

[0048] In the second structure, it can be passed through Figure 9The first structural change is obtained as follows. When the swing assembly 300 only swings left and right, the swing assembly 300 includes a swing bracket 310 and a driving oil cylinder 320. One end of the swing bracket 310 close to the collection port 400 is hinged to the moving assembly 500, and the other end is movably arranged. One end of the driving oil cylinder 320 is hinged to the moving assembly 500, and the other end is hinged to the end of the swing bracket 310 far from the collection port 400. And the hinge points of the driving oil cylinder 320 with the moving assembly 500 and the hinge points of the driving oil cylinder 320 with the swing bracket 310 are both arranged to be movable (such as a spherical hinge joint). The rake body assembly 100 and the rotating assembly 200 are connected to the swing bracket 310. When the driving oil cylinder 320 is started, it pushes the swing bracket 310 to rotate around the hinge point, so that the other end of the swing bracket 310 swings left and right, so that the swing bracket 310 can swing left and right, thereby driving the rotating assembly 200 and the rake body assembly 100 to swing left and right through the swing assembly 300. The rake body assembly 100 that swings left and right can adjust the opening angle on the horizontal plane.

[0049] For the third form (not shown in the figure), the structure when the swing assembly swings up and down can be combined with the structure when the swing assembly only swings left and right. Refer to the above two forms respectively. For example, based on the structure when the swing assembly swings up and down, replace the rake body assembly and the rotating assembly connected to the swing bracket with the structure when the swing assembly only swings left and right, and connect the driving oil cylinder in the structure when the swing assembly only swings left and right to the swing bracket in the first structure. Based on the description of the above two structures, this structure is easy to think of and will not be specifically illustrated. It is easy to think that the swing mechanism can also adopt the form driven by a motor, and rotate a certain angle by the motor drive.

[0050] As Figure 9 As shown, the rotating assembly 200 includes a rotating motor. The rake body assembly 100 is connected to the rotating motor through a coupling, so that the rotating motor drives the rake body assembly 100 to rotate, and then drives the first spiral part 120 to rotate. The first spiral part 120 is spiral. When the first spiral part 120 rotates clockwise in the direction towards the collection port 400, the nodules are pushed / rolled towards the collection port 400 of the mining vehicle.

[0051] As Figure 2As shown, in another embodiment, the swing assembly 300 can also enable the rake body assembly 100 to be deployed at different vertical angles, that is, the rake body assembly 100 can adjust the angle a with the vertical direction, where a is 0 - 180°. This enables the rake body assembly 100 to have the ability to keep close to the ground under the condition of changing seabed shape, so as to ensure continuous mining / separation efficiency along the ore-sweeping width (from right to left) of the mining vehicle.

[0052] As Figure 1 shown, the rake body assembly 100 in this embodiment further includes a main rotating shaft 110. One end of the main rotating shaft 110 is connected to the rotating assembly 200, and the other end extends in a direction away from the collection port 400. Taking the example where the rake body assembly 100 is located on the left side of the collection port 400, the main rotating shaft 110 can swing left and right or / and up and down under the drive of the swing assembly 300, so that the main rotating shaft 110 swings open to the left. The first spiral part 120 includes a plurality of first rake nails 121, and the plurality of first rake nails 121 are arranged at intervals along a spiral track on the outer wall of the main rotating shaft 110. Usually, the first rake nails 121 are set to be relatively long. In this way, when the main rotating shaft 110 rotates, the first rake nails 121 can be inserted deeper into the silt, and large-sized nodules can be dug out from the sediment (silt). Moreover, when rotating, the first rake nails 121 arranged in a spiral shape are beneficial for transporting large-sized nodules, and the large-sized nodules are pushed from the side far away from the collection port 400 to the middle of the collection port 400. And the first rake nails 121 are arranged at intervals, so that fine particles and silt can leak out from the gaps between adjacent first rake nails 121, and a large amount of silt and sand will not be brought to the collection port 400. It is easy to think that the first spiral part 120 can directly adopt a spiral blade, but a larger spiral blade will bring a large amount of silt while collecting ore.

[0053] The main rotating shaft 110 can be solid or cylindrical, which depends on the load size during use. The cylindrical main rotating shaft 110 can be filled with biodegradable lubricating oil for deployment in deep water, or it can also be filled with light non-compressible materials to increase the structural strength. In another cylindrical main rotating shaft 110, through holes are opened on the outer wall of the main rotating shaft 110, and water enters it through the through holes on it, so as to relieve the action of deep water pressure.

[0054] As Figure 2 、 Figure 3As shown, a second rotating portion 130 is further provided on the main rotating shaft 110 in this embodiment. The distance (H2) from the outer edge of the second helical portion to the outer wall surface of the main rotating shaft 110 is less than the distance (H1) from the outer edge of the first helical portion 120 to the outer wall surface of the main rotating shaft 110. The second rotating portion 130 has a shorter length. When the rake body assembly 100 is placed on the seabed, the gap between the top of the second rotating portion 130 with the shorter length and the seabed surface is relatively small, so that small-sized minerals will not leak out from the gap, and thus it can be used to collect smaller-sized minerals. In this way, selective extraction of polymetallic nodules (or manganese nodules) from small-sized sediment at the bottom of the water is achieved.

[0055] Generally, the abundance of nodule distribution on the seabed varies with location. The shapes of the nodules include rough spheroids, ellipsoids or sheet-like nodules. They are often partially embedded in finer seabed sediments. Generally, the size of the nodules is below 15 cm in diameter, and occasionally there are oversized nodules - usually conjoined nodules. It can be foreseen that the rake body assembly 100 with only the first rake pins 121 (longer rake pins) is used to collect the typical nodule size components that can be encountered in typical mining areas, while the rake pin style with the first helical portion 120 and the second helical portion is suitable for mining areas with the same large-sized nodules and a large number of scattered smaller available nodules.

[0056] As Figure 4 As shown, the two curves in the figure respectively represent the ore size distribution in area A and area B. The distance from the outer edge of the first helical portion 120 in this embodiment to the outer wall surface of the main rotating shaft 110 is greater than 30 mm; the distance from the outer edge of the second helical portion to the outer wall surface of the main rotating shaft 110 is less than 30 mm and can be set to 14 - 16 mm. When only the rake body assembly 100 driving the first helical portion 120 is used for collection, up to 50% of the nodules in area A will be missed, and when applied to area B, basically all nodules can be collected. If the rake body assembly 100 with both the first helical portion 120 and the second helical portion is applied to area A, all nodules in area A can be collected, and at the same time, all nodules in area B can also be collected.

[0057] In the specific structure, the second helical portion can adopt various forms.

[0058] As Figure 5As shown, the first form: The second spiral part only includes the second rake nails 131, and a plurality of the second rake nails 131 are arranged at intervals along a spiral track. The second rake nails 131 are arranged on the spiral track of the first rake nails 121, that is, the second rake nails 131 can be arranged between two adjacent first rake nails 121 on the spiral track. If the size range of the minerals to be collected is large, that is, there are both large-particle minerals and small-particle minerals in the collection area, then when the rake body assembly 100 collects minerals, the large minerals are collected by the first rake nails 121 with a longer length, and the second rake nails 131 with a shorter length are used to collect smaller-sized minerals. In this case, the minimum interception size of the minerals can be optimized. This will maximize the nodule collection to a specific value (or minimum size) of the mineral size.

[0059] As Figure 6 shown, the second form: The second spiral part includes a rotating blade 132, and the rotating blade 132 is spirally wound around the main rotating shaft 110, and the first rake nails 121 are distributed on the outer wall of the rotating blade 132. Specifically, the first rake nails 121 can be welded on the outer edge of the rotating blade 132. In this way, by means of the outer length of the rotating blade 132, the first rake nails 121 are lengthened, which can save materials and facilitate production. In addition, the first rake nails 121 can also be welded on the main rotating shaft 110 and the rotating blade 132. In this way, the structural strength of the rotating blade 132 and the first rake nails 121 is increased, and the load-bearing capacity of the entire rake body assembly is strengthened. Similarly, during the rotation of the rotating blade 132, its height lower than that of the first rake nails 121 ensures that smaller surface nodules can be collected.

[0060] As Figure 7 shown, the third form: The second spiral part includes a rotating blade 132 and second rake nails 131. The rotating blade 132 is spirally wound around the main rotating shaft 110, the first rake nails 121 are distributed on the outer wall of the rotating blade 132, and the second rake nails 131 are welded on the outer wall of the rotating blade 132. Similarly, the distance from the second rake nails 131 to the outer wall of the main rotating shaft 110 is less than the length from the first rake nails 121 to the main rotating shaft 110. The rake body assembly adopting this form not only has a stable structure, but also saves materials and can collect smaller surface nodules.

[0061] In each of the above forms, the center line of the second rake nail 131 and the central axis of the rotating shaft 110 may be perpendicularly arranged, that is, both the second rake nail 131 and the first rake nail are arranged on the outer wall of the rotating shaft 110 along the radial direction of the rotating shaft 110. However, in this embodiment, the center line of the second rake nail 131 is obliquely arranged with respect to the cross-section of the main rotating shaft 110. In this way, by obliquely pushing the small-particle ore with the second rake nail 131, the small-particle ore can be moved along the inclined spiral line to the middle of the collection port 400, and it is not easy to push the small-particle minerals outside the collection area, making the collection of the ore in the collection area more thorough.

[0062] As Figure 1 , Figure 2 shown, in this embodiment, there are two rake body assemblies 100, rotating assemblies 200, and swinging assemblies 300. The two rake body assemblies 100 are respectively located on both sides of the collection port 400 in the left-right direction. The rake body assemblies 100 located on the left and right sides can be unfolded to the left and right respectively. The rake body assemblies 100 unfolded on both sides further increase the area of the ore collection area, and more ore can be collected at one time. The rake body assemblies 100 located on the left and right sides can be unfolded at different vertical angles, so as to have the ability to keep close to the ground under the condition of the change of the seabed shape, so as to ensure continuous mining / separation efficiency along the sweeping width of the mining vehicle (from the right to the left).

[0063] When the rake body assemblies 100 located on the left and right sides rotate simultaneously, when the first rake nails 121 and the second rake nails 131 of the spiral contact the nodules, the first rake nails 121 and the second rake nails 131 usually apply force and speed to the nodules in a direction perpendicular to the main rotating shaft 110. When using the second set of rake nails or continuous spiral blades, the spiral itself makes the minerals move towards the middle of the mining vehicle, making the minerals on the left and right sides move closer to the middle of the collection port 400, and the movement of the rake body assembly 100 makes the nodules move towards the middle collection port 400 of the machine. Due to the gap between the first rake nails 121 and the second rake nails 131, during the rotation of the spiral rake, although some unwanted substances are gathered towards the collection port 400 by the rake body assembly 100, these substances may be missed by the rake nails during each subsequent rotation, and substances that are too small will pass through the gap between the rake nails and be left on the sea surface. Due to the limitation of the spacing between adjacent rake nails on the spiral track, oversized objects (or nodules) will not be able to pass through. By using the combined configuration among the rake nail spacing, the variable traveling speed of the mining vehicle, and the variable rotation speed of the rotating assembly 200, the local mineral abundance range can be optimally matched. According to the local mineral abundance range, the traveling speed can be automatically adjusted to match the mineral abundance. Intelligent mining is realized.

[0064] In this embodiment, the required nodules or particles are collected and concentrated into a stacking zone by the mining rake device, and most of the unnecessary sediments are left on the seabed through the gaps between the rake nails. Therefore, the sorting and collection of ore particles by this mining rake device are carried out simultaneously, that is, while collecting the ore, the ore and sediments are separated, improving the mining efficiency.

[0065] In other functions, by using this mining rake device and changing the height of the first spiral part 120 from the seabed surface, the rotation direction of the first spiral part 120 can be changed by the rotating assembly 200, and different functions can also be achieved. For example, when the height of the rake body assembly 100 from the seabed is increased and the first spiral part 120 rotates counterclockwise around the direction towards the collection port 400, the function of underwater stone removal can be realized. On the way of the mining vehicle advancing, the unnecessary stones are removed from the predetermined underwater trenching route by swinging the rake body assembly 100.

[0066] As Figure 8 shown, based on the same concept, this solution also proposes a mining vehicle, including a mining vehicle body 10, a collection port 400 is provided on the mining vehicle body 10, and the above-mentioned mining rake device.

[0067] To sum up: The rake body assembly 100 is the main ground-touching tool at the front of the underwater mining vehicle. The rake body assembly 100 enables the mining vehicle to selectively extract nodular substances from finer sediments and concentrate them for subsequent collection and processing. When the rake body assemblies 100 on both sides are unfolded through the swinging assembly 300, the mining vehicle can obtain a wider scanning width than in other cases. When not mining, the rake body assemblies 100 on both sides are lifted upward through the moving assembly and placed above the mining vehicle body. This minimizes the storage floor area of the mining vehicle, thereby reducing the size of the mining vehicle deployment and recovery equipment and the deck space requirements on the surface mother ship or the deployment and recovery platform.

[0068] A mining rake device and a mining vehicle in the present invention extend the rake body assembly 100 horizontally on one side of the collection port 400. The rake body assembly 100 is connected by a swing device arranged on one side of the collection port 400 to drive the rake body assembly 100 to rotate around the vertical direction, so that the rake body assembly 100 swings out a certain angle in front of the side of the collection port 400. When the mining vehicle is moving forward, the area covered by the rake body assembly 100 is larger than the area covered by the collection port 400. The rotating assembly 200 is connected to the rake body assembly 100 and drives the first spiral part 120 to rotate around the extending direction of the rake body assembly 100. The rotating first spiral part 120 digs up large-sized nodules on the seabed from the sediment. The rotating assembly 200 makes the first spiral part 120 rotate clockwise or counterclockwise around the direction towards the collection port 400. The rotating first spiral part 120 pushes / rolls the dug-up nodules towards the middle of the driving path of the mining vehicle, that is, in front of the collection port 400 of the mining vehicle, so as to collect nodule minerals through the collection port 400. When the mining vehicle is moving forward, the ore area that the collection port 400 can collect not only includes the area in the forward direction of the collection port 400, but also includes the area covered by the rake body assembly 100. Thus, in one movement of the mining vehicle, more ore in a larger area can be collected, achieving the advantages of a large collection range and high mining efficiency.

[0069] This mining rake device adopts a pair of rake body assemblies 100 (rotating spiral rakes), which are installed on a movable underwater mining vehicle that can provide precise direction control. This tool increases the ore-sweeping and collecting width of the vehicle and aggregates the minerals in front of the collection port 400 in the middle of the mining vehicle, realizing the one-time extraction of valuable ores. This tool can also be used as the first part of a two-time extraction system. In this case, the minerals are left on the seabed (or the bottom of an inland water body) to prepare for subsequent collection. In either case, this tool will increase the collection amount of the target minerals and reduce the proportion of unnecessary silt or sediment. In this way, minerals can be extracted more effectively, reducing the waste treatment on the vehicle and other downstream treatment processes. The use of this tool is not limited to the collection of minerals, and it can also be used to separate substances with size differences in any size, for example, it can be used for the collection of underwater pollutants or the cleaning of spilled substances.

[0070] It should be understood that the application of the present invention is not limited to the above examples. For those of ordinary skill in the art, improvements or transformations can be made according to the above description. All such improvements and transformations should fall within the protection scope of the appended claims of the present invention.

Claims

1. A mining rake device for being arranged at a collection port, characterized in that, Comprising: A rake body assembly, which is arranged on the side of the collection port along the horizontal direction and includes a first spiral part; A rotating assembly, which is connected to the rake body assembly and drives the first spiral part to rotate around the extension direction of the rake body assembly. The first spiral part is used to push the ore towards the collection port by rotation; The rake body assembly further includes a main rotating shaft, one end of the main rotating shaft is connected to the rotating assembly, and the other end extends towards the direction away from the collection port; The first spiral part includes a plurality of first rake nails, and the plurality of first rake nails are arranged at intervals along a spiral trajectory on the outer wall of the main rotating shaft; A second spiral part is further arranged on the main rotating shaft; The distance from the outer edge of the second spiral part to the central axis of the main rotating shaft is less than the distance from the outer edge of the first spiral part to the central axis of the main rotating shaft; The first rake nails arranged in a spiral shape are used to convey large-sized nodules, pushing the large-sized nodules from the side far away from the collection port to the middle of the collection port. And the small particles and silt leak out from the gaps between adjacent first rake nails through the spaced arrangement, and a large amount of silt and sand will not be brought to the collection port; The second spiral part is used to prevent small-sized minerals from leaking out of the gaps, so as to collect smaller-sized minerals; in this way, selective extraction of polymetallic nodules from small-particle-size sediments at the bottom of the water is realized; Using the rake nails with the first spiral part and the second spiral part is suitable for mining areas with large-sized nodules and a large number of scattered smaller available nodules; The mining rake device further includes: A swing assembly, which is arranged on the side of the collection port and is connected to the rake body assembly, and drives the rake body assembly to swing on the horizontal plane or / and swing in the up and down directions; A moving assembly, which is movably arranged on the side of the collection port, and the moving assembly drives the rake body assembly to move in the up and down directions.

2. The mining rake device according to claim 1, wherein The second spiral part includes a plurality of second rake nails, and the plurality of second rake nails are arranged at intervals along a spiral trajectory; and / or The second spiral part includes rotating blades, and the rotating blades extend along a spiral trajectory.

3. The mining rake device according to claim 2, characterized in that, The second spiral part includes second rake nails, and the center line of the second rake nails is inclined to the cross-section of the main rotating shaft.

4. The mining rake device according to claim 2, characterized in that, The second spiral part includes rotating blades, and the first rake nails are distributed on the outer wall of the rotating blades.

5. The mining rake device according to any one of claims 1-4, characterized in that, There are two rake body assemblies, rotating assemblies and swing assemblies respectively; The two rake body assemblies are respectively located on both sides of the collection port in the left-right direction.

6. A mining vehicle, characterized in that, Including a mine car body, a collection port is opened on the mine car body, and the mining rake device according to any one of claims 1-5.

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