Unmanned cutter suction dredger

Abstract

The utility model belongs to the technical field of dredgers, and particularly relates to an unmanned cutter suction dredger which comprises a dredger body, an adjusting device is arranged on the outer surface of the dredger body, the adjusting device comprises a wire roller, the movement of the dredger body is adjusted through winding and unwinding of a cable on the wire roller, and sludge is conveyed through the arrangement of a dredging device. The hanging beam is rotationally connected with the pulley, the pulley ensures that transmission of a cable is smoother, one end of the cable of one cable roller is fixedly installed on the cutter suction machine, the height of the cutter suction machine is adjusted and controlled through winding and unwinding of the cable, and therefore the operation depth of the cutter suction machine is controlled. The suction end of the cutter suction machine sucks mud through the mud suction pipe and then conveys the mud into the connecting pipe, and the hose is fixedly communicated with the connecting pipe and fixedly communicated with a mud tank on a large ship so that the sucked mud can be directly conveyed into the mud tank through the hose to be stored in a centralized mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of dredger, especially to an unmanned cutter suction dredger. BACKGROUND

[0002] The cutter suction dredger is used for mixing soil on the river bottom or the sea bottom with water into mud slurry by rotating the cutter, sucking the mud slurry into the pump body through the suction pipe, and sending the mud slurry to the mud discharge area through the mud discharge pipe.

[0003] The patent with the authorization announcement number CN216586738U discloses a cutter suction dredger, which solves the problem of poor fixing effect of the cutter suction dredger, movement of the dredger during work, and influence on work efficiency.

[0004] However, the above-mentioned scheme lacks lighting when using the dredger, which seriously affects the field of view of the operator at night or in a low-light environment, the operator cannot see the surrounding environment clearly, which may lead to misoperation or equipment damage, and even accidents such as collision, and the height or depth of the suction equipment cannot be adjusted, accurate cleaning or excavation work cannot be performed in a specific area, especially when the work range is large, which affects the overall work quality and precision. UTILITY MODEL CONTENTS

[0005] In order to solve the technical problems of lack of lighting when using the dredger, which seriously affects the field of view of the operator at night or in a low-light environment, leads to misoperation or equipment damage, and cannot adjust the height or depth of the suction equipment, cannot perform accurate cleaning or excavation work in a specific area, and affects the overall work quality and precision, the present application provides an unmanned cutter suction dredger.

[0006] The utility model provides an unmanned cutter suction dredger, which comprises a ship body, an adjusting device is arranged on the outer surface of the ship body, the adjusting device comprises a wire roller, and the winding and unwinding of the wire cable on the wire roller adjusts the movement of the ship body.

[0007] The outer surface of the ship body is provided with a dredging device, the dredging device comprises a cutter suction dredger, the suction of the cutter suction dredger transports silt, the suction bottom end of the cutter suction dredger is provided with a cutter head, and the cutter head is driven by a motor.

[0008] Preferably, the adjusting device further comprises an anchor cable roller, the anchor cable roller is rotationally connected to the inner wall of the groove of the ship body, and the outer surface of the ship body is fixedly installed with a lighting lamp.

[0009] Through the above technical scheme, the anchor cable roller is rotationally connected to the ship body, and is fixed while not affecting rotation, the ship body is fixedly installed with the lighting lamp, and sufficient light source is ensured in the operation area when operating at night or in low light conditions.

[0010] Preferably, the wire roller is rotationally connected to the inner wall of the groove of the ship body, and the outer surface of the ship body is fixedly installed with a support frame.

[0011] Through the above technical scheme, the wire roller is rotationally connected to the ship body, and is fixed while not affecting rotation, the ship body is fixedly installed with the support frame, and the support frame is fixed to provide support force for the beam and the pulley.

[0012] Preferably, the inner wall of the groove of the support frame is rotationally connected with a tension roller, and the outer surface of the ship body is fixedly installed with a support frame.

[0013] Through the above technical scheme, the support frame is rotationally connected with the tension roller, and is fixed while not affecting rotation, the ship body is fixedly installed with the support frame, the support frame can limit the hose, and the cables on the two wire rollers are respectively fixedly installed on the large ship through the tension roller and the anchor cable roller on the support frame, so that the movement of the ship body is adjusted through the winding and unwinding of the cable.

[0014] Preferably, the dredging device further comprises a beam, and the beam is fixedly installed on the outer surface of the support frame.

[0015] Through the above technical scheme, the beam is fixedly installed with the support frame, and is fixed to suspend the cutter suction dredger through the pulley.

[0016] Preferably, the outer surface of the beam is rotationally connected with a pulley, and one end of the cable of the wire roller is fixedly installed with one end of the cutter suction dredger.

[0017] Through the above technical scheme, the beam is rotationally connected with the pulley, and is fixed while not affecting rotation, the pulley ensures smoother transmission of the cable and reduces friction, one end of the cable of the wire roller is fixedly installed with the cutter suction dredger, the winding and unwinding of the cable controls the height of the cutter suction dredger, and thus the working depth of the cutter suction dredger is controlled.

[0018] Preferably, the output end of the cutter suction dredger is fixedly communicated with a connecting pipe, and one end of the connecting pipe is fixedly communicated with a hose.

[0019] By the above technical scheme, the output end of the cutter suction dredger is fixedly communicated with the connecting pipe, the suction end of the cutter suction dredger is communicated with the connecting pipe after sucking the mud through the suction pipe, the hose is fixedly communicated with the connecting pipe and the mud tank on the large ship, so that the sucked mud can be directly transported to the mud tank through the hose for centralized storage.

[0020] Preferably, the reamer head comprises a reamer ring, the bottom of the reamer ring is fixedly installed with a reamer arm, a plurality of reamer arms are arranged in an annular array on the surface of the reamer ring, the bottom end of each reamer arm is fixedly installed with a reamer shaft, the arc surface of the reamer arm is fixedly installed with a reamer tooth, and a plurality of reamer teeth are arranged in a curved array on the arc surface of the reamer arm.

[0021] The annular diameter formed by the top ends of the plurality of reamer arms is greater than the annular diameter formed by the bottom ends, and the surface of each reamer arm is in a spiral arc shape.

[0022] The bottom end diameter of the reamer shaft is smaller than the top end diameter of the reamer shaft, and the bottom end arc surface and the top end arc surface of the reamer shaft form a stepped shaft shape.

[0023] A limiting sleeve hole is formed in the top center of the reamer shaft, and the inner wall of the limiting sleeve hole is limitingly sleeved with the suction pipe inlet end of the cutter suction dredger.

[0024] A locking mounting hole is further formed in the top periphery of the reamer shaft, and the inner wall of the locking mounting hole is threadedly connected with the flange mounted on the arc surface of the suction pipe inlet end of the cutter suction dredger through a screw.

[0025] The reamer tooth is composed of a reamer inner tooth and a reamer outer tooth, the mounting surface of the reamer inner tooth is welded with the arc surface of the reamer arm, one end of the reamer outer tooth is provided with a plug-in hole, and the inner wall of the plug-in hole is slidingly plugged with one end of the reamer inner tooth.

[0026] A limiting plug-in groove is further formed in the top end of the reamer inner tooth, a limiting mounting groove is further formed in the surface of the reamer outer tooth, the inner wall of the limiting mounting groove is fixedly communicated with the inner wall of the limiting plug-in groove, and the inner wall of the limiting mounting groove and the inner wall of the limiting plug-in groove are limitingly clamped through a key bar.

[0027] The beneficial effects in the utility model are as follows:

[0028] 1. The adjustment device is arranged to adjust the movement of the ship body, the ship body is fixedly installed with the illuminating lamp, and when work is performed at night or under low light conditions, sufficient light source is ensured in the work area, the wire rollers are rotationally connected with the ship body, the supporting frame is rotationally connected with the tension roller, the cables on the two wire rollers pass through the tension roller and the anchor cable roller on the supporting frame and are fixedly installed on the large ship, the movement of the ship body is adjusted by winding and unwinding the cables, and the technical problems that when the dredger is used, lack of illumination seriously affects the field of view of the operator at night or under low light conditions, the operator cannot clearly see the surrounding environment, misoperation or equipment damage may be caused, and even accidents such as collision occur are solved.

[0029] 2. The dredging device is arranged to transport the silt, the suspension beam is rotationally connected with the pulley, the pulley ensures that the transmission of the cable is smoother, one end of the cable of one wire roller is fixedly installed with the cutter suction dredger, the winding and unwinding of the cable control the height of the cutter suction dredger, thereby controlling the working depth of the cutter suction dredger, the output end of the cutter suction dredger is fixedly communicated with the connecting pipe, the suction end of the cutter suction dredger is communicated with the connecting pipe after silt is sucked through the silt suction pipe and is transported into the connecting pipe, the hose is fixedly communicated with the connecting pipe and the silt tank on the large ship, so that the silt sucked is directly transported into the silt tank through the hose for centralized storage, and the technical problems that the height or depth of the silt suction equipment cannot be adjusted, accurate cleaning or dredging work cannot be performed in a specific area, especially when the work range is large, the overall work quality and precision are affected are solved.

[0030] 3. The spiral arc design of the reamer arm of the device can better adapt to the dredging needs of various strata, reduce the dredging resistance, improve the dredging speed and cutting effect; the stepped shaft-shaped reamer shaft improves the torsional and bending strength without increasing too much material, and the larger diameter of the top end can withstand greater torque; the curved array distribution of the reamer teeth and the combined design of the inner and outer teeth improve the structural strength and wear resistance, prolonging the service life of the reamer; the replaceable design of the reamer outer teeth reduces maintenance cost and time, and the reamer arm does not need to be replaced as a whole; the annular array distribution and spiral arc design of the reamer arm enable the dredger to adjust the dredging depth and angle according to the dredging needs of different strata, improving the adaptability; the device has significant advantages in improving work efficiency, reducing maintenance cost, enhancing structural stability and adapting to different working environments. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A schematic diagram of an unmanned cutter suction dredger is provided for the utility model;

[0032] Figure 2 A perspective view of an anchor cable roller structure of an unmanned cutter suction dredger is provided for the utility model;

[0033] Figure 3A three-dimensional view of a tension roller structure of an unmanned cutter suction dredger is provided in the utility model.

[0034] Figure 4 A three-dimensional view of a beam structure of an unmanned cutter suction dredger is provided in the utility model.

[0035] Figure 5 A three-dimensional view of a cutter head structure of an unmanned cutter suction dredger is provided in the utility model.

[0036] Figure 6 A three-dimensional view of a reamer shaft structure of an unmanned cutter suction dredger is provided in the utility model.

[0037] Figure 7 A three-dimensional view of a reamer tooth structure of an unmanned cutter suction dredger is provided in the utility model.

[0038] In the drawing: 1, ship body; 2, anchor cable roller; 21, illuminating lamp; 3, line roller; 31, support frame; 4, tension roller; 41, support frame; 5, beam; 6, pulley; 61, cutter suction machine; 62, cutter head; 621, reamer ring; 622, reamer arm; 623, reamer shaft; 624, reamer tooth; 6241, reamer inner tooth; 6242, reamer outer tooth; 6243, plug-in hole; 6244, limiting plug-in slot; 6245, limiting installation slot; 625, limiting sleeve hole; 626, locking installation hole; 7, connecting pipe; 71, hose. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0040] Referring to Figures 1-7 An unmanned cutter suction dredger comprises a ship body 1, and an adjusting device is arranged on the outer surface of the ship body 1, wherein the adjusting device comprises a line roller 3, and the winding and unwinding of a cable on the line roller 3 adjusts the movement of the ship body 1.

[0041] In order to ensure that the operation area has sufficient light source, the adjusting device further comprises an anchor cable roller 2, the anchor cable roller 2 is rotationally connected to the inner wall of the groove of the ship body 1, the outer surface of the ship body 1 is fixedly installed with an illuminating lamp 21, the anchor cable roller 2 is rotationally connected to the ship body 1, is fixed at the same time and does not affect the rotation, the ship body 1 is fixedly installed with the illuminating lamp 21, and when operation is performed at night or under low light conditions, sufficient light source of the operation area is ensured.

[0042] In order to provide support force for the beam 5 and the pulley 6, the wire roller 3 is rotationally connected to the inner wall of the groove of the ship body 1, the outer surface of the ship body 1 is fixedly provided with the support frame 31, the wire roller 3 is rotationally connected to the ship body 1, and the wire roller 3 is fixed while not affecting the rotation, the ship body 1 is fixedly provided with the support frame 31, and the ship body 1 is fixed to provide support force for the beam 5 and the pulley 6.

[0043] In order to adjust the movement of the ship body 1, the tension roller 4 is rotationally connected to the inner wall of the groove of the support frame 31, the outer surface of the ship body 1 is fixedly provided with the support frame 41, the support frame 31 is rotationally connected to the tension roller 4, and the support frame 31 is fixed while not affecting the rotation, the ship body 1 is fixedly provided with the support frame 41, and the ship body 1 is fixed, the support frame 41 can limit the hose 71, and the cables on the two wire rollers 3 are fixedly provided on the large ship through the tension roller 4 and the anchor cable roller 2 on the support frame 31, so that the movement of the ship body 1 is adjusted through the winding and unwinding of the cable.

[0044] The movement of the ship body 1 is adjusted through the adjustment device, the ship body 1 is fixedly provided with the lighting lamp 21, the operation area has sufficient light source when the operation is performed at night or in low light conditions, the wire roller 3 is rotationally connected to the ship body 1, the support frame 31 is rotationally connected to the tension roller 4, the cables on the two wire rollers 3 are fixedly provided on the large ship through the tension roller 4 and the anchor cable roller 2 on the support frame 31, so that the movement of the ship body 1 is adjusted through the winding and unwinding of the cable, and the technical problem that the lack of illumination seriously affects the field of view of the operator at night or in low light environment when the dredger is used, the operator cannot clearly see the surrounding environment, and misoperation or equipment damage, even collision accidents occur is solved.

[0045] In order to transport the silt, the outer surface of the ship body 1 is provided with a dredging device, the dredging device comprises a cutter suction dredger 61, the suction of the cutter suction dredger 61 transports the silt, the suction bottom end of the cutter suction dredger 61 is provided with a cutter head 62, and the cutter head 62 is driven by a motor.

[0046] In order to suspend the cutter suction dredger 61 through the pulley 6, the dredging device further comprises a beam 5, the beam 5 is fixedly provided on the outer surface of the support frame 31, the beam 5 is fixed to the support frame 31, so that the cutter suction dredger 61 is suspended through the pulley 6.

[0047] In order to control the working depth of the cutter suction dredger 61, the outer surface of the beam 5 is rotationally connected with the pulley 6, one end of the cable of the wire roller 3 is fixedly provided with one end of the cutter suction dredger 61, the beam 5 is rotationally connected with the pulley 6, and the beam 5 is fixed while not affecting the rotation, the pulley 6 ensures that the transmission of the cable is more smooth, and the friction is reduced, one end of the cable of the wire roller 3 is fixedly provided with the cutter suction dredger 61, the winding and unwinding of the cable regulates the height of the cutter suction dredger 61, so as to control the working depth of the cutter suction dredger 61.

[0048] The reamer head 62 comprises a reamer ring 621, the bottom of which is fixedly installed with reamer arms 622, the reamer arms 622 are arranged in an annular array on the surface of the reamer ring 621, and the bottom end of each reamer arm 622 is fixedly installed with a reamer shaft 623, the arc surface of the reamer arm 622 is fixedly installed with a reamer tooth 624, and the reamer teeth 624 are arranged in a curved array on the arc surface of the reamer arm 622; the annular diameter formed by the top end of the reamer arm 622 is larger than the annular diameter formed by the bottom end, and the surface of the reamer arm 622 is in a spiral arc shape.

[0049] Specifically, the surface of the reamer arm 622 is in a spiral arc shape, which can better adapt to the excavation needs of various strata, reduce the excavation resistance, and improve the excavation speed; the spiral arc design of the reamer arm 622 enables it to better cut into the soil during excavation, improves the cutting effect, and is beneficial to excavating hard soil; the annular array distribution of the reamer arm 622 can adjust the excavation depth and angle of the reamer head according to the excavation needs of different strata, improving the adaptability of the dredger; the spiral arc design of the reamer arm 622 helps to disperse the impact force during excavation, reduces the wear of the reamer head, and prolongs its service life.

[0050] The bottom end diameter of the reamer shaft 623 is smaller than the top end diameter of the reamer shaft 623, and the bottom end circular arc surface and the top end circular arc surface of the reamer shaft 623 form a stepped shaft shape.

[0051] Specifically, the stepped shaft shape can improve the torsional and bending strength of the reamer shaft 623 without adding too much material. The larger top end diameter can withstand greater torque, while the smaller bottom end diameter helps to reduce the overall weight; in the reamer dredger, the reamer shaft 623 needs to be in contact with the slurry, and the stepped shaft shape can improve the dynamic characteristics of slurry flow, reduce turbulence and vortex, and improve the slurry suction efficiency.

[0052] A limiting sleeve connection hole 625 is formed in the center of the top of the reamer shaft 623, and the inner wall of the limiting sleeve connection hole 625 is in limiting sleeve connection with the suction pipe feeding end of the reamer suction machine 61.

[0053] Specifically, the design of the limiting sleeve connection hole 625 can ensure that the reamer shaft 623 is accurately centered with the suction pipe feeding end of the reamer suction machine, thereby ensuring smooth excavation and conveying; the limiting sleeve connection of the limiting sleeve connection hole 625 with the suction pipe feeding end can fix the position of the reamer head, preventing displacement of the reamer head due to vibration or impact during excavation.

[0054] Locking mounting holes 626 are also formed around the top of the reamer shaft 623, and the inner wall of the locking mounting hole 626 is threadedly connected with the flange installed on the arc surface of the suction pipe feeding end of the reamer suction machine 61 through a screw.

[0055] Specifically, the screw connection mode makes the installation and disassembly of the reamer shaft 623 faster, especially when maintenance or replacement of the reamer is needed, time and labor can be saved; since the screws are evenly distributed around the reamer shaft 623, the stress at the connection can be evenly distributed, local stress concentration is reduced, and the durability of the structure is improved.

[0056] The reamer teeth 624 are composed of reamer inner teeth 6241 and reamer outer teeth 6242, the mounting surface of the reamer inner teeth 6241 is welded with the arc surface of the reamer arm 622, and the reamer outer teeth 6242 are provided with a plug-in hole 6243 at one end, and the inner wall of the plug-in hole 6243 is slidably plugged with one end of the reamer inner teeth 6241.

[0057] Specifically, the curved array distribution of the reamer teeth 624 can make the cutting more uniform and improve the digging or cutting efficiency, especially when dealing with different hardness materials; the welded connection of the reamer inner teeth 6241 with the reamer arm 622 and the plug-in mode of the reamer outer teeth 6242 with the inner teeth can provide stronger structural strength and wear resistance, prolonging the service life of the reamer; the plug-in hole 6243 is provided at one end of the reamer outer teeth 6242, so that the reamer outer teeth 6242 can be replaced individually without the need to replace the reamer arm 622 as a whole, reducing maintenance cost and time; the combination design of the reamer inner teeth 6241 and the outer teeth can adjust the cutting effect according to different working requirements, for example, the outer teeth can be designed to wear out more easily for easy replacement, while the inner teeth can maintain a longer service life.

[0058] The top end of the reamer inner teeth 6241 is also provided with a limiting plug-in slot 6244, and the surface of the reamer outer teeth 6242 is also provided with a limiting installation slot 6245, the inner wall of the limiting installation slot 6245 and the inner wall of the limiting plug-in slot 6244 are fixedly communicated, and the inner wall of the limiting installation slot 6245 and the inner wall of the limiting plug-in slot 6244 are both fixedly connected by a key strip.

[0059] Specifically, by limiting the key strip, the relative displacement of the reamer teeth 624 during work can be prevented, and the overall stability is enhanced; the limiting design can effectively prevent the reamer outer teeth 6242 from falling off due to vibration or impact during use, improving the safety of the operation; the limiting effect of the key strip reduces the wear between the reamer teeth 624, prolonging the service life of the reamer; the design of the limiting plug-in slot 6244 and the limiting installation slot 6245 makes the installation and disassembly of the reamer teeth 624 more convenient and fast, especially when maintenance or replacement is needed.

[0060] In order to directly transport the sucked silt to the mud tank through the hose 71 for centralized storage, the output end of the cutter suction dredger 61 is fixedly communicated with a connecting pipe 7, one end of the connecting pipe 7 is fixedly communicated with the hose 71, the suction end of the cutter suction dredger 61 is transported into the connecting pipe 7 after sucking the silt through the suction pipe, the hose 71 is fixedly communicated with the connecting pipe 7 and the mud tank on the large ship, so that the sucked silt is directly transported to the mud tank through the hose 71 for centralized storage.

[0061] By arranging the dredging device, the silt is transported, the hanger beam 5 is rotationally connected with the pulley 6, the pulley 6 ensures that the transmission of the cable is smoother, one end of the cable of one wire roller 3 is fixedly installed with the cutter suction dredger 61, the retraction and extension of the cable controls the height of the cutter suction dredger 61, thereby controlling the working depth of the cutter suction dredger 61, the output end of the cutter suction dredger 61 is fixedly communicated with the connecting pipe 7, the suction end of the cutter suction dredger 61 is transported into the connecting pipe 7 after sucking the silt through the suction pipe, the hose 71 is fixedly communicated with the connecting pipe 7 and the mud tank on the large ship, so that the sucked silt is directly transported to the mud tank through the hose 71 for centralized storage, thereby solving the technical problems that the height or depth of the silt sucking device cannot be adjusted, the accurate cleaning or dredging operation cannot be carried out in the specific area, especially when the working range is large, the overall working quality and precision are affected.

[0062] Working principle: when the dredger is used, the workers fix the cables on the two wire rollers 3 on the large ship through the tension roller 4 and the anchor cable roller 2 on the support frame 31, adjust the ship body 1 to the required area by controlling the retraction and extension of the cable on the anchor cable roller 2, since the cable on the middle wire roller 3 is rotationally connected with the pulley 6 fixedly installed on the hanger beam 5 of the support frame 31 and the cutter suction dredger 61, the control system adjusts the working depth of the cutter suction dredger 61 by adjusting the retraction and extension of the cable, the suction pipe fixedly communicated with the suction end of the cutter suction dredger 61 transports the silt into the connecting pipe 7 fixedly communicated with the output end of the cutter suction dredger 61, thereby transporting the silt into the mud tank on the large ship through the hose 71 fixedly communicated with the connecting pipe 7 for centralized storage, when lighting is required, the illuminating lamp 21 on the ship body 1 can be used for lighting.

[0063] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An unmanned cutter suction dredger comprising a hull (1), characterized in that: The outer surface of the ship body (1) is provided with an adjusting device, the adjusting device comprises a wire roller (3), and the winding and unwinding of the wire cable on the wire roller (3) adjusts the movement of the ship body (1); The outer surface of the ship body (1) is provided with a dredging device, the dredging device comprises a cutter suction dredger (61), the suction of the cutter suction dredger (61) transports the silt, and the suction bottom end of the cutter suction dredger (61) is provided with a cutter head (62), and the cutter head (62) is driven by a motor.

2. An unmanned cutter suction dredger according to claim 1, characterized in that: The adjusting device further comprises an anchor cable roller (2), which is rotationally connected to the inner wall of the groove of the ship body (1), and the outer surface of the ship body (1) is fixedly installed with a lighting lamp (21).

3. An unmanned cutter suction dredger according to claim 2, characterized in that: The wire roller (3) is rotationally connected to the inner wall of the groove of the ship body (1), and the outer surface of the ship body (1) is fixedly installed with a support frame (31).

4. An unmanned cutter suction dredger according to claim 3, characterized in that: The inner wall of the groove of the support frame (31) is rotationally connected with a tension roller (4), and the outer surface of the ship body (1) is fixedly installed with a support frame (41).

5. An unmanned cutter suction dredger according to claim 4, characterized in that: The dredging device further comprises a hanging beam (5), which is fixedly installed on the outer surface of the support frame (31).

6. An unmanned cutter suction dredger according to claim 5, characterized in that: The outer surface of the hanging beam (5) is rotationally connected with a pulley (6), one end of the wire cable of the wire roller (3) is fixedly installed with the cutter suction dredger (61).

7. An unmanned cutter suction dredger according to claim 6, characterized in that: The output end of the cutter suction dredger (61) is fixedly communicated with a connecting pipe (7), one end of the connecting pipe (7) is fixedly communicated with a hose (71).

8. An unmanned cutter suction dredger according to claim 1, characterized in that: The cutter head (62) comprises a reamer ring (621), the bottom of the reamer ring (621) is fixedly installed with a reamer arm (622), a plurality of reamer arms (622) are arranged in an annular array on the surface of the reamer ring (621), the bottom end of each reamer arm (622) is fixedly installed with a reamer shaft (623), the arc surface of the reamer arm (622) is fixedly installed with a reamer tooth (624), and a plurality of reamer teeth (624) are arranged in a curved array on the arc surface of the reamer arm (622); The annular diameter formed by the top ends of the plurality of reamer arms (622) is greater than the annular diameter formed by the bottom ends, and the surfaces of the plurality of reamer arms (622) are in spiral arc shape; The bottom end diameter of the reamer shaft (623) is smaller than the top end diameter of the reamer shaft (623), and the bottom end arc surface and the top end arc surface of the reamer shaft (623) form a stepped shaft shape; A limiting sleeve hole (625) is formed in the center of the top of the reamer shaft (623), and the inner wall of the limiting sleeve hole (625) is limitingly sleeved with the suction pipe inlet end of the cutter suction dredger (61); A locking mounting hole (626) is further formed in the top of the reamer shaft (623), and the inner wall of the locking mounting hole (626) is threadedly connected with the flange installed on the arc surface of the suction pipe inlet end of the cutter suction dredger (61) through a screw. The reamer teeth (624) are composed of reamer inner teeth (6241) and reamer outer teeth (6242), the mounting surface of the reamer inner teeth (6241) is welded with the arc surface of the reamer arm (622), one end of the reamer outer teeth (6242) is provided with a plug-in hole (6243), and the inner wall of the plug-in hole (6243) is slidably plugged with one end of the reamer inner teeth (6241); The top end of the reamer inner teeth (6241) is also provided with a limiting plug-in groove (6244), the surface of the reamer outer teeth (6242) is also provided with a limiting mounting groove (6245), the inner wall of the limiting mounting groove (6245) is fixedly communicated with the inner wall of the limiting plug-in groove (6244), and the inner wall of the limiting mounting groove (6245) and the inner wall of the limiting plug-in groove (6244) are all limitedly clamped through key strips.

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