Underwater intelligent dredging device

Abstract

The invention relates to the technical field of river channel desilting, in particular to an underwater intelligent desilting device which comprises two parallel supporting shafts, two cutter suction cylinders are connected to the two supporting shafts respectively, a discharging opening is formed in the end, close to the supporting shafts, of each cutter suction cylinder, and a cutter suction opening is formed in the end, away from the supporting shafts, of each cutter suction cylinder. The two spiral augers are arranged between the two cutter suction barrels, the crushing cone is arranged between the two spiral augers, the two spiral augers rotate to convey sludge to the cutter suction port, the sludge suction amount in unit time is increased, the sludge suction range of the cutter suction port is larger, the crushing cone can break caked or hard sludge, the sludge is crushed secondarily through the spiral augers, and the sludge can be conveyed to the cutter suction port through the crushing cone. And the supporting shaft drives the cutter suction barrel and the spiral auger to be close to or far away from each other, the state can be adjusted according to the sludge condition, the suction pressure of the cutter suction opening is reduced, and the dredging efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of river channel dredging, and in particular to an underwater intelligent dredging device. Background Art

[0002] A river desilting device is a device used to remove river sediment (such as silt, humus, garbage, etc.) in order to improve water flow conditions, prevent floods, protect the ecological environment, and enhance the navigation capacity of waterways.

[0003] For example, Chinese patent CN113309165B discloses a suction-type ecological dredging device and method, which includes a hull and a control room arranged on the hull, a suction mechanism and a winch mechanism for controlling the activity of the suction mechanism are installed on the hull, the suction mechanism includes a mud suction pipe, a conveying pipe is arranged in the mud suction pipe, the mud suction pipe is connected to a suction head through a mounting seat on the side away from the control room, and the mud outlet end of the conveying pipe is connected to a sewage pipe through a mud suction pump. The scheme continuously rotates and cuts the underwater soil layer by rotating the suction head, so that the soil layer is separated and mixed with the clean water in the trench, and the mud and water enter the pumping pipe through the suction head. When the suction head contacts the soil layer, it will drive the crushing parts to contact the soil layer, and the two groups of crushing rollers rotate in opposite directions. After the mud around the crushing rollers is cut, it can be mixed with water and sucked away by the suction head under the suction force of the suction head.

[0004] However, the suction head in the above scheme needs a large amount of water mixed into mud before it can be sucked, and the sludge concentration is relatively low. The suction head of the suction dredging device in the prior art has a relatively small coverage area for dredging, and frequent movements are required to complete a larger range of dredging tasks. Summary of the invention

[0005] Based on this, it is necessary to provide an underwater intelligent dredging device to address the problem of low dredging efficiency of the dredging head of the current dredging device.

[0006] The above purpose is achieved through the following technical solutions: An underwater intelligent dredging device, comprising: A support frame, wherein two support shafts are arranged on the support frame and are parallel to each other, and the two support shafts can move closer to or farther from each other; Two cutter suction drums, the two cutter suction drums are parallel to each other and are respectively connected to the two support shafts, the angle between the cutter suction drum and the support shaft is an obtuse angle, the ends of the two cutter suction drums away from the two support shafts are provided with cutter suction ports, and the ends of the two cutter suction drums close to the two support shafts are provided with discharge ports; Two spiral augers, the ends of the two spiral augers close to each other are hinged, and the ends of the two spiral augers away from each other are connected to the suction ports of the two suction drums. When the two spiral augers rotate around their own axes, the sludge can be transported to the suction ports of the two suction drums. A crushing cone is arranged at a hinged position of two spiral augers, and the crushing cone has a tip.

[0007] Furthermore, a connecting pipe is fixedly connected to the suction port of each of the two cutting suction cylinders, the connecting pipe is coaxial with the cutting suction cylinder, a hinge ball is fixedly provided on the outer periphery of the end of the connecting pipe, a connecting block is connected to the outer periphery of the hinge ball, the interior of the connecting block is hollow and one end is open, the open end of the connecting block is rotatably connected to the spiral auger, and the connecting pipe is communicated with the interior of the connecting block.

[0008] Furthermore, a first telescopic rod is arranged between the two connecting blocks, a second telescopic rod is fixedly arranged at the middle position of the first telescopic rod, the second telescopic rod is fixedly connected to the crushing cone, and the axis of the second telescopic rod is perpendicular to the axis of the first telescopic rod.

[0009] Furthermore, a first drive motor is fixedly arranged on the connecting block, and a rotating shaft of the first drive motor is coaxially and fixedly connected to the spiral auger.

[0010] Furthermore, a baffle is fixedly connected to the connecting block, and the baffle is located above the spiral auger.

[0011] Furthermore, a filter cartridge is coaxially and fixedly arranged inside the cutter suction cylinder, a plurality of filter holes are opened on the outer periphery of the filter cartridge, a conveying auger is coaxially and rotatably arranged inside the filter cartridge, the blade pitch of the conveying auger gradually decreases in the direction from the cutter suction port to the discharge port, a drain port is arranged on the outer periphery of the cutter suction cylinder, and the drain port connects the cavity between the inner periphery of the cutter suction cylinder and the outer periphery of the filter cartridge.

[0012] Furthermore, the filter holes on the filter cartridge are opened at a position close to the drain outlet.

[0013] Furthermore, a second drive motor is fixedly arranged on the auger suction cylinder, and a rotating shaft of the second drive motor is coaxially and fixedly connected to the conveying auger.

[0014] Furthermore, a spiral rod is rotatably arranged on the support frame, two ends of the spiral rod are respectively spirally connected to two support shafts, and the axis of the spiral rod is perpendicular to the axes of the two support shafts.

[0015] Furthermore, the angle between the support shaft and the cutter suction drum is negatively correlated with the water depth.

[0016] The beneficial effects of the present invention are: The present invention transports sludge to the suction port through the rotation of two spiral augers, thereby increasing the amount of sludge sucked per unit time and making the sludge sucked by the suction port cover a wider range. The crushing cone can break up the agglomerated or hard sludge, and the sludge is easier to absorb after secondary crushing by the spiral augers. The support shaft drives the suction cylinder and the spiral augers to move closer or farther, and can adjust the state according to the sludge situation, reduce the suction pressure of the suction port, and improve the dredging efficiency.

[0017] The present invention arranges a filter cylinder and a conveying auger in a cutter suction cylinder, and the pitch of the conveying auger blades is reduced to squeeze the sludge, water is discharged through the filter holes and the water outlet, and the sludge is discharged from the outlet, thereby achieving effective separation of sludge and water.

[0018] The angle between the support shaft and the suction cylinder of the present invention is negatively correlated with the water depth and can be adjusted according to the water depth to ensure that the spiral auger contacts the underwater silt for more thorough cleaning. The rotation of the spiral rod can adjust the distance between the two support shafts so that the equipment can adapt to different silt amounts and distribution conditions.

[0019] The present invention provides a baffle on the connecting block, and the baffle cooperates with the spiral auger to guide the silt when the hull retreats, thereby improving the silt gathering capacity and improving the efficiency and quality of the dredging operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of an underwater intelligent dredging device provided in one embodiment of the present invention; Figure 2 for Figure 1 A front view of an underwater intelligent dredging device provided in an embodiment; Figure 3 for Figure 2 A cross-sectional view of an underwater intelligent dredging device along AA provided in an embodiment; Figure 4 A schematic diagram of the structure of a suction drum of an underwater intelligent dredging device provided in one embodiment of the present invention; Figure 5 for Figure 4 A right side view of a suction drum of an underwater intelligent dredging device provided in one embodiment; Figure 6 for Figure 5 A cross-sectional view of a suction drum of an underwater intelligent dredging device provided in an embodiment along the line BB; Figure 7 A schematic diagram of the first state structure of an underwater intelligent dredging device provided by an embodiment of the present invention; Figure 8 A schematic diagram of the second state structure of an underwater intelligent dredging device provided in one embodiment of the present invention.

[0021] in: 100, support shaft; 110, spiral rod; 120, spiral groove; 130, positioning seat; 140, hinged joint; 200, screw suction cylinder; 210, screw suction port; 220, discharge port; 230, water outlet; 240, connecting pipe; 250, hinged ball; 260, hinged ear; 270, filter cartridge; 271, filter hole; 280, conveying auger; 300, spiral auger; 310, crushing cone; 320, connecting block; 330, first telescopic rod; 340, second telescopic rod; 350, baffle; 400, a first driving motor; 410, a second driving motor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] Refer to the following Figure 1-Figure 8 To describe an underwater intelligent dredging device provided by the present invention.

[0026] An underwater intelligent dredging device is suitable for clearing river silt, comprising a support frame (not shown in the figure), which is fixedly arranged on a hull (not shown in the figure), and two mutually parallel support shafts 100 are arranged on the support frame, and the two support shafts 100 can approach or move away from each other, and two cutter suction drums 200 are respectively connected to one end of the two support shafts 100, and the two cutter suction drums 200 are also parallel to each other, and the angle between the support shaft 100 and the cutter suction drum 200 is an obtuse angle, so that the cutter suction drum 200 can extend underwater, and the two cutter suction drums 200 are provided with a cutter suction port 210 on one end away from the two support shafts 100, and the cutter suction port 210 is used to suck up a mixture of silt and water, and the two cutter suction drums 200 are provided with a discharge port 220 on one end close to the two support shafts 100, and the discharge port 220 is used to discharge the mixture of silt and water sucked by the cutter suction drum 200, so that the underwater silt can be cleared.

[0027] When the cutter suction drum 200 sucks up a mixture of sludge and water, if the underwater sludge is not scraped up, the sludge sucked up by the cutter suction drum 200 will contain more water, thereby reducing the sludge cleaning efficiency. When the underwater sludge is scraped up, the sludge content in the water increases, thereby increasing the sludge content in the mixture sucked up by the cutter suction drum 200. The amount of sludge sucked per unit time increases, thereby improving the efficiency of cleaning the sludge.

[0028] Two spiral augers 300 are arranged at the suction ports 210 of the two suction cylinders 200. The ends of the two spiral augers 300 that are close to each other are hinged, and the ends of the two spiral augers 300 that are away from each other are arranged at the suction ports 210. When the two spiral augers 300 rotate around their own axes, they can transport the sludge (transportation means that the spiral augers 300 can generate a force that pushes water toward the suction ports 210 when they rotate) to the two suction ports 210. The suction cylinder 200 sucks the sludge at the suction ports 210 into the suction cylinder 200, and then discharges it from the discharge port 220, thereby greatly improving the sludge cleaning efficiency. In addition, the arrangement of the two spiral augers 300 can increase the range of sludge sucking by the suction port 210. Compared with the traditional suction head, the sludge can be sucked over a large area without frequent movement.

[0029] The two spiral augers 300 of the present invention are provided with a crushing cone 310 at one end close to each other. The crushing cone 310 has a tip. When the hull moves forward, the tip of the crushing cone 310 faces the direction of the hull. Figure 7 As shown, that is, the whole moves to the right, and when the crushing cone 310 encounters underwater lumps or relatively hard silt, it can break up the lumps or relatively hard silt. In addition, due to the rotation of the two spiral augers 300, the broken silt is crushed for the second time by the spiral augers 300, so that the silt crushing effect is better. The crushed silt is transported by the spiral augers 300 to approach the suction port 210 of the suction cylinder 200.

[0030] It should be noted that, since the two support shafts 100 of the present invention can move closer to or farther from each other, the two support shafts 100 can synchronously drive the two cutting suction cylinders 200 to move closer to or farther from each other. When the two cutting suction cylinders 200 move away from or closer to each other, the states of the two spiral augers 300 can be changed, such as Figure 7 As shown, when the two support shafts 100 are close to each other, the two cutting suction cylinders 200 are driven to approach each other, and the two cutting suction cylinders 200 drive the ends of the two spiral augers 300 that are far away from each other to approach each other, so that the two spiral augers 300 form an angle. The closer the two support shafts 100 are, the smaller the angle formed by the two spiral augers 300 is. The two spiral augers 300 in this state are suitable for cleaning situations where there is less sludge and it is clumped or relatively hard.

[0031] When there is a lot of underwater silt, and the silt is not lumpy or hard, the above-mentioned two spiral augers 300 can still be used, but the hull needs to move in the opposite direction, that is, the hull drives the two spiral augers 300 with an angle to move to the left, and the underwater silt will be gathered at a position close to the crushing cone 310 by the two spiral augers 300 with an angle, and then the two spiral augers 300 will transport the silt gathered at the position of the crushing cone 310 to the suction port 210, which can reduce the pressure of the suction port 210 to absorb the silt. It can be understood that if there is a lot of underwater silt, the suction port 210 will absorb the silt. When the cylinder 200 sucks silt, a large amount of silt will be blocked at the suction port 210. At this time, the suction pressure of the suction port 210 is large. When the hull moves in the opposite direction, the silt will be gathered at the crushing cone 310 under the guidance of the two spiral augers 300. Since the two spiral augers 300 have an angle, the two spiral augers 300 are inclined. Under the movement of the hull, the silt can be first gathered at the crushing cone 310, and then the silt gathered at the crushing cone 310 is transported to the suction port 210 under the rotation of the two spiral augers 300, thereby reducing the suction pressure at the suction port 210.

[0032] When the two support shafts 100 are away from each other, as shown in FIG. Figure 8 As shown, the distance between the two support shafts 100 is the farthest. At this time, the rotating shafts of the two spiral augers 300 are almost on the same straight line. The state of the two spiral augers 300 is used to clean up the underwater silt in a moderate condition. At this time, the hull can move forward or backward. If there are lumps or relatively hard silt in the silt in the moderate condition, the hull moves forward, so that the crushing cone 310 plays a certain crushing function. If there are no lumps or relatively hard silt in the silt in the moderate condition, the hull can move backward. Under the action of the rotation of the two spiral augers 300, the silt is broken up and mixed in the water, and the suction port 210 of the suction drum 200 continuously absorbs silt and water to perform dredging operations.

[0033] Specifically, in the present embodiment, a connecting pipe 240 is fixedly provided on the two suction ports 210 of the two suction drums 200, the connecting pipe 240 is connected with the suction port 210, the connecting pipe 240 is coaxially arranged with the suction drum 200, the outer periphery of one end of the connecting pipe 240 away from the suction port 210 is coaxial and fixedly sleeved with a hinge ball 250, the hinge ball 250 is hollow, the outer periphery of the hinge ball 250 is connected with a connecting block 320, the connecting block 320 is also hollow, and one end of the connecting block 320 is open, the open end of the connecting block 320 is inserted into the spiral auger 300, the spiral auger 300 is rotatably connected in the connecting block 320, the connecting pipe 240 is connected to the inside of the connecting block 320 through the hinge ball 250, when the spiral auger 300 rotates, the underwater silt will be transported to the connecting block 320, and the silt enters the suction port 210 of the suction drum 200 through the connecting pipe 240.

[0034] It should be noted that if Figure 3 As shown, in order to facilitate the ball connection between the connecting block 320 and the articulated ball 250, a circular hole is opened on one end of the connecting block 320, and an arc plate is fixedly arranged on the inner wall of the circular hole. The arc plate adapts to the shape of the articulated ball 250 and the inner wall of the arc plate is in smooth contact with the outer periphery of the articulated ball 250, so that the articulated ball 250 can be ball-connected with the connecting block 320, and the two spiral augers 300 can change the angle when the two augers 200 approach or move away from each other.

[0035] More specifically, in order to enable the two spiral augers 300 to rotate around their own axes to transport the sludge to the two suction ports 210, the present invention has first drive motors 400 fixedly arranged on the two connecting blocks 320, and the rotating shafts of the two first drive motors 400 are respectively coaxial with and fixedly connected to the two spiral augers 300, and the rotation directions of the two spiral augers 300 are opposite, and the rotation directions of the two first drive motors 400 are the same, so that the two spiral augers 300 can transport the sludge to the two suction ports 210 respectively.

[0036] In order to improve the connection strength of the crushing cone 310, Figure 7 As shown, a first telescopic rod 330 is arranged between the two connecting blocks 320, and both ends of the first telescopic rod 330 are respectively hinged at the bottom of the two connecting blocks 320, and a second telescopic rod 340 is fixedly connected to the middle position of the first telescopic rod 330, and the axis of the second telescopic rod 340 is perpendicular to the axis of the first telescopic rod 330, and the other end of the second telescopic rod 340 is fixedly connected to the crushing cone 310, forming a stable cross-shaped connection structure, thereby increasing the connection strength of the crushing cone 310.

[0037] It should be noted that the second telescopic rod 340 and the crushing cone 310 are in the same plane. Since the two spiral augers 300 are ball-connected to the suction cylinder 200 through two connecting blocks 320, when the axes of the two spiral augers 300 are in a nearly overlapping state, the two connecting blocks 320 and the articulated ball 250 will rotate when the hull moves forward or backward. Therefore, the second telescopic rod 340 and the crushing cone 310 are in contact with the underwater bottom surface to prevent the two connecting blocks 320 and the articulated ball 250 from rotating.

[0038] When the equipment is in operation, the two support shafts 100 approach each other due to operation requirements, and the connection blocks 320 at both ends of the two spiral augers 300 also approach each other. In this dynamic process, the first telescopic rod 330 will be shortened accordingly due to the reduction in the distance between the connection blocks 320. At the same time, based on the special mechanical relationship between the first telescopic rod 330 and the second telescopic rod 340, the shortening of the first telescopic rod 330 will cause the extension of the second telescopic rod 340. Conversely, when the two connection blocks 320 are moved away from each other by external force, the first telescopic rod 330 will be extended, and the second telescopic rod 340 will be shortened accordingly.

[0039] Through the coordinated telescopic changes between the first telescopic rod 330 and the second telescopic rod 340, no matter what complex operating state the equipment is in, it can always ensure that the crushing cone 310 has sufficient and stable connection strength. Compared with the traditional single connection method, this design scheme significantly enhances the stability and reliability of the crushing cone 310 when facing various complex working conditions, and effectively reduces the risk of equipment failure or reduced operating efficiency due to loose connection, providing a solid guarantee for efficient and stable dredging operations, and greatly improving the performance and service life of the entire dredging equipment.

[0040] In a further embodiment, to improve the ability of the two spiral augers 300 to gather sludge, as Figure 1 and Figure 2 As shown, baffles 350 are fixedly connected to the two connecting blocks 320, and the length of the baffles 350 is similar to the length of the spiral augers 300. The two baffles 350 are respectively located above the two spiral augers 300, and the two baffles 350 are inclined. The two baffles 350 are inclined in the direction away from the crushing cone 310, so that when the hull moves backward and pulls the two spiral augers 300, the silt is not only guided by the spiral augers 300, but also by the baffles 350, thereby improving the ability to gather silt.

[0041] The design of the spiral auger 300 and the baffle 350 working in coordination with each other greatly improves the ability to gather silt. Compared with the situation of relying solely on the spiral auger 300, the silt gathering efficiency is greatly improved after adding the baffle 350, and more silt can be collected in a shorter time, laying a solid foundation for subsequent silt treatment work and effectively improving the efficiency and quality of the entire dredging operation process.

[0042] Specifically, a conveying auger 280 is coaxially and fixedly arranged inside the cutter suction cylinder 200 in this embodiment. When the conveying auger 280 rotates around its own axis, the sludge and water in the cutter suction cylinder 200 can be conveyed from the cutter suction port 210 to the discharge port 220, thereby realizing the function of the cutter suction cylinder 200 to absorb sludge. In order to separate the sludge and water, the present invention coaxially and fixedly arranges a filter cartridge 270 inside the cutter suction cylinder 200, and a plurality of filter holes 271 are opened on the outer periphery of the filter cartridge 270, and the conveying auger 280 is coaxially and fixedly arranged inside the filter cartridge 270. At the same time, the blade pitch of the conveying auger 280 is adjusted at the cutter suction port 210. 10 gradually decreases in the direction from the discharge port 220, so that the space where the sludge entering the inside of the cutter suction drum 200 is gradually reduced when it is transported by the conveying auger 280, so that the sludge is continuously squeezed, and the squeezed water is discharged into the space between the inner periphery of the cutter suction drum 200 and the outer periphery of the filter drum 270 through the filter holes 271 on the filter drum 270. In order to facilitate the discharge of water, a water outlet 230 is provided on the outer periphery of the cutter suction drum 200. The water outlet 230 is connected to the cavity between the inner periphery of the cutter suction drum 200 and the outer periphery of the filter drum 270. The water in the cavity can be discharged through the water outlet 230. Figure 4 and Figure 6 As shown, the height of the water outlet 230 is lower than the height of the discharge port 220 . After the water is discharged through the water outlet 230 , the squeezed sludge is discharged through the discharge port 220 .

[0043] It should be noted that the water outlet 230 and the discharge port 220 in the present invention can be connected to a drain pipe (not shown in the figure) and a mud discharge pipe (not shown in the figure), and the lengths of the drain pipe and the mud discharge pipe can be adjusted according to needs. The filter holes 271 on the filter cartridge 270 in the present invention are mainly opened near the water outlet 230, so that the water squeezed out of the sludge can be quickly discharged from the water outlet 230.

[0044] Specifically, in order to realize the rotation of the conveying auger 280, a second drive motor 410 is fixedly provided on one end of the cutter suction cylinder 200 away from the cutter suction port 210, and the two cutter suction cylinders 200 are fixedly provided with a second drive motor 410, and the rotating shafts of the two second drive motors 410 are respectively coaxial with the two conveying augers 280 and fixedly connected. When the rotating shafts of the two second drive motors 410 rotate and drive the two conveying augers 280 to rotate synchronously, the conveying auger 280 sucks the sludge in the cutter suction cylinder 200 from the cutter suction port 210, and conveys the sludge to the discharge port 220.

[0045] In a further embodiment, in order to realize the function of moving the two support shafts 100 closer to or farther away from each other, a spiral rod 110 is rotatably arranged on the support frame, the axis of the spiral rod 110 is perpendicular to the axes of the two support shafts 100, and the two ends of the spiral rod 110 are respectively spirally connected to the two support shafts 100, and spiral grooves 120 are arranged on both ends of the spiral rod 110, and the rotation directions of the two thread grooves are also opposite. When the spiral rod 110 rotates, it can drive the two support shafts 100 closer to or farther away from each other through the two spiral grooves 120 with opposite rotation directions. It should be noted that guide rails (not shown in the figure) are arranged on the two support shafts 100 in this embodiment, and the guide rails enable the two support shafts 100 to only move closer to or farther away from each other, and the two support shafts 100 will not tilt.

[0046] Specifically, the middle position of the screw rod 110 is rotatably connected to a positioning seat 130, which is fixed on the hull. An electric motor (not shown in the figure) is arranged on the positioning seat 130, and the rotating shaft of the motor is engaged with the outer periphery of the screw rod 110. When the motor rotates, it can drive the screw rod 110 to rotate, and the screw rod 110 pulls or pushes the two support shafts 100 closer to or away from each other.

[0047] In a further embodiment, in order to make the two spiral augers 300 adapt to waters of different depths, the present invention arranges the support shaft 100 and the cutting suction drum 200 as an angle-adjustable structure, and the angle between the support shaft 100 and the cutting suction drum 200 is negatively correlated with the water depth. The water depth is measured before performing dredging operations, and the angle between the support shaft 100 and the cutting suction drum 200 is adjusted according to the water depth, so that the two spiral augers 300 can just contact the underwater silt, thereby ensuring that the underwater silt is thoroughly cleaned. In the initial state, the angle between the support shaft 100 and the cutting suction drum 200 is an obtuse angle. When the water depth is large, the angle between the support shaft 100 and the cutting suction drum 200 can be appropriately reduced. When the water depth is small, the angle between the support shaft 100 and the cutting suction drum 200 can be appropriately increased.

[0048] Specifically, a hinged head 140 is fixedly provided on one end of the support shaft 100 close to the cutting suction cylinder 200, and a hinged ear 260 is fixedly provided on one end of the cutting suction cylinder 200 close to the support shaft 100. Both the hinged head 140 and the hinged ear 260 are provided with connecting holes, and fastening bolts are inserted into the connecting holes. Fastening nuts are threadedly connected to the fastening bolts. When the angle needs to be adjusted, the fastening nuts are loosened, and then the angles of the support shaft 100 and the cutting suction cylinder 200 are adjusted. It should be noted that the angles of the two support shafts 100 and the two cutting suction cylinders 200 need to be adjusted synchronously. After the angle adjustment is completed, the two fastening nuts are tightened at the same time to fix the angle to prevent the angle from changing during the dredging operation.

[0049] The specific working process of an underwater intelligent dredging device provided by the present invention is described in combination with the above embodiments: Adjust the angle between the support shaft 100 and the cutter suction cylinder 200: Before carrying out dredging operations, the water depth is measured first, and the angle between the support shaft 100 and the cutter suction drum 200 is adjusted according to the water depth. When the water is deep, the angle between the support shaft 100 and the cutter suction drum 200 gradually approaches a right angle from an obtuse angle, thereby increasing the distance that the two spiral augers 300 extend into the water. When the water is shallow, the angle between the support shaft 100 and the cutter suction drum 200 gradually increases, thereby reducing the distance that the two spiral augers 300 extend into the water, ensuring that the two spiral augers 300 can contact the underwater silt.

[0050] Adjust the angle between the two spiral augers 300: Before the dredging operation is carried out, it is also necessary to measure the underwater silt conditions. When there is little underwater silt and the silt is not agglomerated or relatively hard, the spiral rod 110 can be driven to rotate by controlling the motor (not shown in the figure), and the spiral rod 110 drives the two support shafts 100 to approach each other, and the two support shafts 100 drive the two suction drums 200 to approach each other, and the two suction drums 200 drive the two ends of the two spiral augers 300 that are far away from each other to approach each other, so that the angle between the two spiral augers 300 is gradually reduced, and the hull (not shown in the figure) drives the two spiral augers 300 to move forward along the angle formed by them; when there is a lot of underwater silt and there is no agglomeration or relatively hard silt, the state of the two spiral augers 300 is the same as the above state, except that the direction of movement of the two spiral augers 300 is changed, and the hull drives the two spiral augers 300 to move in the opposite direction of the angle formed by them; if the underwater silt is moderate, the motor rotates in the reverse direction to drive the spiral rod 110 to rotate in the reverse direction, so that the two support shafts 100 are away from each other, and form a Figure 8In the state shown, the distance between the two support shafts 100 reaches the maximum, and the axes of the two spiral augers 300 are almost coincident at this time. The hull can pull the two spiral augers 300 forward or backward. If the underwater silt is clumped or relatively hard, the hull moves forward to allow the crushing cone 310 between the two spiral augers 300 to break up the clumped silt or relatively hard silt. If the underwater silt is not clumped or relatively hard, the hull can move backward.

[0051] Start dredging: The two first drive motors 400 and the two second drive motors 410 are started, and the hull is driven forward or backward. The two first drive motors 400 drive the two spiral augers 300 to rotate around their own axes, thereby having a certain crushing effect on the underwater silt and being able to transport the underwater silt toward the direction of the cutting suction port 210. The two second drive motors 410 drive the conveying augers 280 in the cutting suction cylinder 200. The two conveying augers 280 rotate to suck the silt and water into the cutting suction cylinder 200 together, and the pitch of the two conveying augers 280 gradually decreases in the direction from the cutting suction port 210 to the discharge port 220, so that the silt sucked into the cutting suction cylinder 200 is gradually squeezed, and the squeezed water is discharged through the water outlet 230 on the cutting suction cylinder 200, and the silt is discharged through the discharge port 220. A water outlet pipe (not shown in the figure) can be connected to the water outlet 230 to discharge water, and a mud discharge pipe (not shown in the figure) can also be connected to the discharge port 220 to discharge silt.

[0052] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An underwater intelligent dredging device, characterized in that: include: A support frame, wherein two mutually parallel support shafts (100) are arranged on the support frame, and the two support shafts (100) can be moved closer to or farther from each other; Two cutting suction cylinders (200), the two cutting suction cylinders (200) are parallel to each other and are respectively connected to the two support shafts (100), the angle between the cutting suction cylinder (200) and the support shaft (100) is an obtuse angle, a cutting suction port (210) is provided on one end of the two cutting suction cylinders (200) away from the two support shafts (100), and a discharge port (220) is provided on one end of the two cutting suction cylinders (200) close to the two support shafts (100); Two spiral augers (300), the ends of the two spiral augers (300) close to each other are hinged, and the ends of the two spiral augers (300) away from each other are connected to the suction ports (210) of the two suction cylinders (200), and the two spiral augers (300) can transport sludge to the suction ports (210) of the two suction cylinders (200) when rotating around their own axes; A crushing cone (310) is provided at a hinged position of two spiral augers (300), and the crushing cone (310) has a pointed end.

2. The underwater intelligent dredging device according to claim 1, characterized in that: A connecting pipe (240) is fixedly connected to the screw suction ports (210) of the two screw suction cylinders (200); the connecting pipe (240) is coaxial with the screw suction cylinder (200); a hinge ball (250) is fixedly provided on the outer periphery of the end of the connecting pipe (240); a connecting block (320) is spherically connected to the outer periphery of the hinge ball (250); the connecting block (320) is hollow inside and open at one end; the open end of the connecting block (320) is rotatably connected to the spiral auger (300); and the connecting pipe (240) is in communication with the inside of the connecting block (320).

3. The underwater intelligent dredging device according to claim 2 is characterized in that: A first telescopic rod (330) is arranged between the two connecting blocks (320), a second telescopic rod (340) is fixedly arranged at a middle position of the first telescopic rod (330), the second telescopic rod (340) is fixedly connected to the crushing cone (310), and an axis of the second telescopic rod (340) is perpendicular to an axis of the first telescopic rod (330).

4. The underwater intelligent dredging device according to claim 2, characterized in that: A first drive motor (400) is fixedly arranged on the connection block (320), and a rotating shaft of the first drive motor (400) is coaxially and fixedly connected to the spiral auger (300).

5. The underwater intelligent dredging device according to claim 4, characterized in that: A baffle plate (350) is fixedly connected to the connection block (320), and the baffle plate (350) is located above the spiral auger (300).

6. The underwater intelligent dredging device according to claim 1, characterized in that: A filter cartridge (270) is coaxially and fixedly arranged inside the cutter suction cylinder (200), a plurality of filter holes (271) are provided on the outer periphery of the filter cartridge (270), a conveying auger (280) is coaxially and rotatably arranged inside the filter cartridge (270), the blade pitch of the conveying auger (280) gradually decreases in the direction from the cutter suction port (210) to the discharge port (220), and a drainage port is arranged on the outer periphery of the cutter suction cylinder (200), the drainage port communicating with the cavity between the inner periphery of the cutter suction cylinder (200) and the outer periphery of the filter cartridge (270).

7. The underwater intelligent dredging device according to claim 6, characterized in that: The filter hole (271) on the filter cartridge (270) is opened at a position close to the drain outlet.

8. The underwater intelligent dredging device according to claim 6, characterized in that: A second drive motor (410) is fixedly arranged on the auger suction cylinder (200), and a rotating shaft of the second drive motor (410) is coaxially and fixedly connected to the conveying auger (280).

9. The underwater intelligent dredging device according to claim 1, characterized in that: A spiral rod (110) is rotatably arranged on the support frame, and two ends of the spiral rod (110) are respectively spirally connected to two support shafts (100), and the axis of the spiral rod (110) is perpendicular to the axes of the two support shafts (100).

10. The underwater intelligent dredging device according to claim 1, characterized in that: The angle between the support shaft (100) and the cutter suction drum (200) is negatively correlated with the water depth.

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