Wharf dredging ship with sliding ship body

Abstract

The utility model relates to the technical field of desilting equipment, and provides a wharf desilting ship with a sliding ship body, which comprises a floating platform, a main cabin is arranged on the floating platform in a sliding manner, two ends of the main cabin are respectively connected with a sliding driving mechanism for driving the main cabin to move forwards or backwards, one end of the main cabin is further hinged with a bridge frame, and a bridge frame lifting mechanism is arranged between the bridge frame and the floating platform. A desilting tool bit assembly is installed at the end, away from the main bin, of the bridge frame, and a bridge frame floating and sinking adjusting mechanism is installed at the position, close to the desilting tool bit assembly, of the bridge frame. The distance of the desilting tool bit assembly in the horizontal direction can be adjusted, and therefore the problems that the wharf desilting space is limited, the sludge extending distance is long, and desilting is incomplete are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dredging equipment, in particular to a dock dredger with a hull sliding function. Background Technique

[0002] A dredger, that is, a tool for removing bottom sediments, generally has two types of power sources: diesel engines and electric motors. The hull is a floating body, adopting a prefabricated container structure, consisting of a dredging device, a power device, a conveying device, etc., and the dredging device is driven by power to remove bottom sediments, which are sent to a designated position by the conveying device.

[0003] Generally, there are some dock platforms extending into the water area in docks. At the bottom of the dock platform, several support columns are usually evenly distributed at a certain distance. As the service time extends, the silt at the bottom of the dock platform will accumulate, and the thickness of the silt gradually increases, burying the support columns in the silt, making it impossible to maintain the support columns. Therefore, regular dredging work is required. However, due to the limited space between the support columns, the dredging operation space is small, generally 4 - 5 meters, and the dredger cannot enter for operation, making it difficult to effectively clean the silt at the bottom of the dock platform.

[0004] Currently, there are also some dock dredgers. For example, a Chinese utility model patent with the application number CN202322689288.5 and the patent name of a dock dredger includes a middle loading cabin. At one end of the middle loading cabin, a tail ballast cabin is fixedly installed. On both sides at the other end of the middle loading cabin, head ballast cabins are fixedly installed. An electric dredging pump is fixedly installed inside the middle loading cabin. The water outlet of the electric dredging pump is connected to a mud discharge pipe. A mud suction assembly is rotatably installed on one side of the middle loading cabin. One end of the mud suction assembly is fixedly connected to the water inlet of the electric dredging pump. A mud suction pipe support is fixedly installed between the two head ballast cabins. The towing rope of the hoisting winch bypasses the mud suction pipe support and is fixedly connected to the mud suction assembly. The silt at the bottom of the dock is cleaned by setting the mud suction pipe support and the mud suction assembly. However, since the dock extends a certain distance in the water area, only partial areas can be dredged by relying solely on the mud suction pipe support and the mud suction assembly. When the extension distance of the dock in the water area is greater than the length of the mud suction pipe support, the silt at the bottom of the dock cannot be comprehensively cleaned. Content of the Utility Model

[0005] In order to overcome the defects of the above-mentioned prior art, the utility model provides a dock dredger with a hull sliding function, which can realize the adjustment of the horizontal distance of the dredging cutter head assembly, thus solving the problems of limited dock dredging space, long silt extension distance, and incomplete dredging.

[0006] To solve the above technical problems, the technical solution of the utility model is as follows:

[0007] A dock dredging ship with hull sliding, including a floating platform, on which a main cabin is slidably installed. Both ends of the main cabin are respectively connected with a sliding drive mechanism for driving the main cabin to move forward or backward. One end of the main cabin is also hingedly installed with a bridge frame. A bridge frame lifting mechanism is arranged between the bridge frame and the floating platform. A dredging cutter head assembly is installed at the end of the bridge frame far from the main cabin. A bridge frame floating and sinking adjustment mechanism is installed on the bridge frame and near the dredging cutter head assembly.

[0008] As an improved technical solution, the sliding drive mechanism includes a rear towing winch assembly and a forward moving winch assembly. The forward moving winch assembly is arranged at one end of the floating platform close to the dredging cutter head assembly, and the rear towing winch assembly is arranged at the end of the floating platform far from the dredging cutter head assembly.

[0009] As an improved technical solution, the rear towing winch assembly includes a first winch frame installed at one end of the floating platform. A rear towing winch is fixedly installed on the first winch frame. A first towing rope is arranged on the rear towing winch. The end of the first towing rope far from the rear towing winch is connected with one end of the main cabin.

[0010] The forward moving winch assembly includes a second winch frame installed at the other end of the floating platform. A forward moving winch is fixedly installed on the second winch frame. A second towing rope is arranged on the forward moving winch. The end of the second towing rope far from the forward moving winch is connected with the other end of the main cabin.

[0011] As an improved technical solution, the bridge frame lifting mechanism includes a lifting winch fixedly installed on the second winch frame. A third towing rope is arranged on the lifting winch. The end of the third towing rope far from the lifting winch is connected with one end of the bridge frame close to the dredging cutter head assembly.

[0012] As an improved technical solution, the floating platform includes two side floating bodies arranged oppositely. The main cabin is arranged between the two side floating bodies. Both the first winch frame and the second winch frame span across the two side floating bodies. Guide rails are respectively arranged oppositely on the adjacent sides of the two side floating bodies. Rollers are respectively arranged oppositely on both sides of the main cabin. The rollers are rollingly installed in the guide rails.

[0013] As an improved technical solution, the dredging cutter head assembly includes a motor and a sludge pump. Both the motor and the sludge pump are installed at the end of the bridge frame far from the main cabin. A cutter head for cutting the dock sludge is fixedly installed on the output shaft of the motor. One end of the sludge pump facing the cutter head is communicated with a sludge suction pipe, and the other end is communicated with a sludge discharge pipe.

[0014] As an improved technical solution, two groups of dredging cutter head assemblies are provided, and the two groups of dredging cutter head assemblies are arranged oppositely, and the rotation directions of the cutter heads of the two groups of dredging cutter head assemblies are arranged in opposite directions.

[0015] As an improved technical solution, the bridge floating and sinking adjustment mechanism includes an adjustment water tank, the adjustment water tank is arranged at one end of the bridge close to the dredging cutter head assembly, a control valve is arranged at the bottom of the adjustment water tank, a water pump is installed on the bridge or the floating platform, and the water pump communicates with the adjustment water tank.

[0016] As an improved technical solution, a number of positioning anchors are arranged in a row at the edge of the floating platform, an operation room is installed on the floating platform, and an engine and a generator are arranged in the inner cavity of the main cabin.

[0017] After adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0018] By setting a floating platform, a main cabin is slidably installed on the floating platform, both ends of the main cabin are respectively connected with a sliding drive mechanism for driving the main cabin to move forward or backward, one end of the main cabin is also hinged with a bridge, a bridge lifting mechanism is arranged between the bridge and the floating platform, a dredging cutter head assembly is installed at one end of the bridge far from the main cabin, and a bridge floating and sinking adjustment mechanism is installed on the bridge and close to the dredging cutter head assembly. By setting the bridge floating and sinking adjustment mechanism, the sinking and floating of the bridge can be controlled to ensure that the dredging cutter head assembly has appropriate pressure and cutting force on the silt. By setting the bridge lifting mechanism, the bridge can be lifted. When the dock dredger does not operate during the hull sliding, the bridge can be lifted to make the dredging cutter head assembly out of the water, which is convenient for subsequent maintenance. By setting the sliding drive mechanism, the main cabin can be driven to move horizontally. Since the bridge is hinged to the main cabin, the bridge is driven to move forward or backward synchronously, and then the dredging cutter head assembly is driven to move synchronously, so that the dredging cutter head assembly can extend into each area at the bottom of the dock, which is convenient for effectively and comprehensively cleaning the silt at the bottom of the dock, and the operation is convenient and the silt cleaning efficiency is high;

[0019] The sliding drive mechanism includes a rear towing winch assembly and a forward moving winch assembly. By the forward moving winch assembly, the main cabin can be towed forward, so that the bridge can extend out of the floating platform by a certain length, so that it can extend into the bottom of the dock for a longer distance, which is convenient for comprehensively cleaning the silt at the bottom of the dock. By the rear towing winch assembly, the main cabin can be towed backward, so that the bridge can be retracted into the floating platform, which is convenient for effectively cleaning the silt near the dock dredger, and at the same time, it is also convenient for the movement and transfer of the dock dredger;

[0020] There are two groups of dredging cutter head assemblies, and the two groups of dredging cutter head assemblies are arranged oppositely. The rotation directions of the cutter heads of the two groups of dredging cutter head assemblies are set in opposite directions. By setting the rotation directions of the cutter heads of the two groups of dredging cutter head assemblies to be opposite, the lateral cutting forces generated by the two cutter heads during operation can cancel each other out, thereby eliminating the lateral acting force of the dredging cutter head assembly on the floating platform during operation and reducing the load on the positioning anchor.

[0021] In summary, the present utility model provides a dock dredging ship with hull slippage, which can realize the adjustment of the horizontal distance of the dredging cutter head assembly, thereby solving the problems of limited dredging space at the dock, long extension distance of the silt, and incomplete dredging. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings. In addition, in the drawings, the components or parts are not necessarily drawn according to the actual ratio.

[0023] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0024] Figure 2 It is a top view structural schematic diagram of the present utility model;

[0025] Figure 3 It is a structural schematic diagram of the sliding component between the main cabin and the floating platform in the present utility model;

[0026] Figure 4 It is a structural schematic diagram of the forward movement of the bridge in the present utility model;

[0027] Figure 5 It is a structural schematic diagram of the sliding drive mechanism in the present utility model;

[0028] Reference numerals:

[0029] 1. Floating platform, 101. Side floating body, 2. Main warehouse, 3. Sliding drive mechanism, 301. Rear towing winch assembly, 3011. First winch frame, 3012. Rear towing winch, 3013. First towing rope, 302. Forward moving winch assembly, 3021. Second winch frame, 3022. Forward moving winch, 3023. Second towing rope, 4. Bridge, 5. Bridge lifting mechanism, 501. Lifting winch, 502. Third towing rope, 6. Dredging cutter head assembly, 601. Motor, 602. Mud pump, 603. Cutter head, 7. Bridge floating and sinking adjustment mechanism, 701. Adjustment water tank, 8. Guide rail, 9. Roller, 10. Anchor, 11. Operating room, 12. Engine, 13. Generator. Detailed implementation mode

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] At the same time, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B at the same time.

[0033] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0034] Such as Figures 1-5As shown in the figure, a dock dredger with hull sliding includes a floating platform 1, on which a main cabin 2 is slidably installed. At both ends of the main cabin 2, there are respectively connected sliding drive mechanisms 3 for driving the main cabin 2 to move forward or backward. At one end of the main cabin 2, there is also a hinged bridge 4 installed. Between the bridge 4 and the floating platform 1, there is a bridge lifting mechanism 5. At the end of the bridge 4 far from the main cabin 2, there is a dredging cutter head assembly 6 installed. On the bridge 4 and near the dredging cutter head assembly 6, there is a bridge floating and sinking adjustment mechanism 7 installed. By setting the bridge floating and sinking adjustment mechanism 7, the sinking and floating of the bridge 4 can be controlled to ensure that the dredging cutter head assembly 6 has appropriate pressure and cutting force on the silt. By setting the bridge lifting mechanism 5, the bridge 4 can be lifted. When the dock dredger with hull sliding is not working, the bridge 4 can be raised to make the dredging cutter head assembly 6 out of the water, which is convenient for subsequent maintenance. By setting the sliding drive mechanism 3, the main cabin 2 can be driven to move horizontally. Since the bridge 4 is hinged to the main cabin 2, the bridge 4 is driven to move forward or backward synchronously, and then the dredging cutter head assembly 6 is driven to move synchronously, so that the dredging cutter head assembly 6 can extend into each area at the bottom of the dock, which is convenient for effectively and comprehensively cleaning the silt at the bottom of the dock, and the operation is convenient and the silt cleaning efficiency is high.

[0035] As Figures 1-2 and Figures 4-5 shown in the figure, the sliding drive mechanism 3 includes a rear towing winch assembly 301 and a forward moving winch assembly 302. The forward moving winch assembly 302 is arranged at one end of the floating platform 1 close to the dredging cutter head assembly 6, and the rear towing winch assembly 301 is arranged at the end of the floating platform 1 far from the dredging cutter head assembly 6. By the forward moving winch assembly 302, the main cabin 2 can be towed forward, so that the bridge 4 can extend a certain length out of the floating platform 1, so that it can extend into a longer distance at the bottom of the dock, which is convenient for comprehensively cleaning the silt at the bottom of the dock. By the rear towing winch assembly 301, the main cabin 2 can be towed backward, so that the bridge 4 can be retracted into the floating platform 1, which is convenient for effectively cleaning the silt near the dock dredger, and at the same time, it is also convenient for the movement and transfer of the dock dredger.

[0036] As Figures 1-2 and Figures 4-5 shown in the figure, the rear towing winch assembly 301 includes a first winch frame 3011, which is installed at one end of the floating platform 1. On the first winch frame 3011, a rear towing winch 3012 is fixedly installed. On the rear towing winch 3012, there is a first towing rope 3013. The end of the first towing rope 3013 far from the rear towing winch 3012 is connected to one end of the main cabin 2. By winding the first towing rope 3013 by the rear towing winch 3012, the main cabin 2 is driven to move backward through the first towing rope 3013, realizing the rear towing operation of the main cabin 2 and making the bridge 4 retracted into the floating platform 1;

[0037] The forward winch assembly 302 includes a second winch frame 3021 which is installed at the other end of the floating platform 1. A forward winch 3022 is fixedly installed on the second winch frame 3021. A second towing rope 3023 is provided on the forward winch 3022. The end of the second towing rope 3023 away from the forward winch 3022 is connected to the other end of the main bin 2. By winding the second towing rope 3023 with the forward winch 3022, the main bin 2 is driven to move forward by the second towing rope 3023, so as to realize the forward movement operation of the main bin 2 and make the bridge 4 extend out of the floating platform 1.

[0038] As Figures 1-2 and Figure 4 shown, the bridge lifting mechanism 5 includes a lifting winch 501 which is fixedly installed on the second winch frame 3021. A third towing rope 502 is provided on the lifting winch 501. The end of the third towing rope 502 away from the lifting winch 501 is connected to one end of the bridge 4 close to the dredging cutter head assembly 6. By winding the third towing rope 502 with the lifting winch 501, the bridge 4 is driven to lift upward by the third towing rope 502, so that the dredging cutter head assembly 6 can be exposed above the water surface, which is convenient for the maintenance and repair of the dredging cutter head assembly 6.

[0039] As Figures 2-3 shown, the floating platform 1 includes two opposite side floating bodies 101. The main bin 2 is arranged between the two side floating bodies 101. Both the first winch frame 3011 and the second winch frame 3021 span across the two side floating bodies 101. Guide rails 8 are respectively and oppositely arranged on the adjacent sides of the two side floating bodies 101. Rollers 9 are respectively and oppositely arranged on both sides of the main bin 2. The rollers 9 are rotatably installed in the guide rails 8. By arranging the guide rails 8 and the rollers 9, it is convenient for the main bin 2 to slide between the two side floating bodies 101, and the movement is smoother.

[0040] As Figures 1-2 and Figure 4 shown, the dredging cutter head assembly 6 includes a motor 601 and a sludge pump 602. Both the motor 601 and the sludge pump 602 are installed at one end of the bridge 4 away from the main bin 2. A cutter head 603 for cutting the sludge of the dock is fixedly installed on the output shaft of the motor 601. The motor 601 drives the cutter head 603 to rotate and cut the sludge. One end of the sludge pump 602 facing the cutter head 603 is communicated with a sludge suction pipe, and the other end is communicated with a sludge discharge pipe. The cut sludge is extracted by the sludge pump 602 and conveyed to a designated area through the sludge discharge pipe, thereby realizing the cleaning work of the dock sludge;

[0041] In addition, the motor 601 can also be a hydraulic motor, and the cutter head 603 is driven to rotate by the hydraulic motor to cut the dock sludge.

[0042] As Figures 1-2 and Figure 4As shown, there are two groups of dredging cutter head assemblies 6, and the two groups of dredging cutter head assemblies 6 are arranged oppositely. The rotation directions of the cutter heads 603 of the two groups of dredging cutter head assemblies 6 are set in opposite directions. By setting the rotation directions of the cutter heads 603 of the two groups of dredging cutter head assemblies 6 to opposite directions, the lateral cutting forces generated by the two cutter heads 603 during operation can cancel each other out, thereby eliminating the lateral acting force of the dredging cutter head assembly 6 on the floating platform 1 during operation and reducing the load on the positioning anchor 10.

[0043] As Figures 1-2 and Figure 4 shown, the bridge floating and sinking adjustment mechanism 7 includes an adjustment water tank 701. The adjustment water tank 701 is arranged at one end of the bridge 4 close to the dredging cutter head assembly 6. A control valve is provided at the bottom of the adjustment water tank 701. A water pump is installed on the bridge 4 or the floating platform 1. The water pump is connected to the adjustment water tank 701. The installation position of the water pump can be installed on the bridge 4 or the floating platform 1 according to design requirements, which is not limited here. At the same time, the water pump is common in daily life and belongs to the common knowledge of those skilled in the technical field and is not marked in the figure. By setting the adjustment water tank 701, when not working, there is no water in the adjustment water tank 701, and under the combined action of the bridge lifting mechanism 5, it is ensured that the bridge 4 and the dredging cutter head assembly 6 float. When working, the control valve at the bottom of the adjustment water tank 701 is opened, and external water enters the adjustment water tank 701. Through the gravity of the water filled in the adjustment water tank 701, as well as the bridge 4, the adjustment water tank 701 and the dredging cutter head assembly 6, the dredging cutter head assembly 6 can apply appropriate pressure and cutting force to the silt, facilitating the cleaning of the silt. When the bridge 4 needs to float, the water in the adjustment water tank 701 is pumped out by the water pump, so that the adjustment water tank 701 and the bridge 4 can float under the action of buoyancy.

[0044] As Figures 1-2 shown, a number of positioning anchors 10 are arranged along the edge of the floating platform 1. An operation room 11 is installed on the floating platform 1. Inside the main cabin 2, there is an engine 12 and a generator 13. In this embodiment, four positioning anchors 10 are provided, which are located at the four corner positions of the floating platform 1 respectively. By setting the four positioning anchors 10, the floating platform 1 can be fixed at the required position. By setting the operation room 11, the dock dredger with hull sliding is operated. By setting the engine 12 and the generator 13, power and electricity are provided for the dock dredger with hull sliding, facilitating the operation of various devices on the ship.

[0045] For the convenience of understanding, the working process of this embodiment is given below:

[0046] As Figures 1-5As shown in the figure, first, move the floating platform 1 to the designated area. After that, fix the floating platform 1 through the positioning anchor 10. Then, drive the main cabin 2 to move forward by the forward winch assembly 302, so that the bridge 4 can extend a certain length from the floating platform 1, thereby being able to extend into the bottom of the wharf for a relatively long distance. After that, adjust the control valve at the bottom of the regulating water tank 701 to open, and external water enters the regulating water tank 701. Through the gravity of the water filled in the regulating water tank 701, as well as the bridge 4, the regulating water tank 701 and the dredging cutter head assembly 6, the dredging cutter head assembly 6 can exert appropriate pressure and cutting force on the silt. Then, start the motor 601, the motor 601 drives the cutter head 603 to rotate and cut the silt. At the same time, pump the cut silt through the sludge pump 602 and transport it to the designated area through the discharge pipe, thereby realizing the cleaning work of the silt at the bottom of the wharf;

[0047] After all the silt at the bottom of the wharf is cleaned up, pump out the water in the regulating water tank 701 through the water pump, so that the regulating water tank 701 and the bridge 4 can float under the action of buoyancy. Then, drag the main cabin 2 to move backward by the rear towing winch assembly 301, so that the bridge 4 retracts into the floating platform 1. At the same time, the bridge lifting mechanism 5 acts, and the lifting winch 501 drives the bridge 4 to lift through the third towing rope 502, so that the dredging cutter head assembly 6 is lifted out of the water, facilitating the transfer of the wharf dredging ship.

[0048] In summary, the present utility model provides a wharf dredging ship with hull sliding, which can realize the adjustment of the horizontal distance of the dredging cutter head assembly, thereby solving the problems of limited dredging space at the wharf, long extension distance of the silt, and incomplete dredging.

[0049] It should be understood that the use of these embodiments is only for illustrating the present utility model and is not intended to limit the protection scope of the present utility model. In addition, it should also be understood that after reading the technical content of the present utility model, those skilled in the art can make various changes, modifications and / or variations to the present utility model, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A dock dredging vessel with sliding hull, characterized in that: It includes a floating platform, on which a main warehouse is slidingly installed, and both ends of the main warehouse are respectively connected to sliding drive mechanisms for driving the main warehouse to move forward or backward. A bridge is also hingedly installed at one end of the main warehouse, and a bridge lifting mechanism is provided between the bridge and the floating platform. A dredging cutter head assembly is installed at the end of the bridge away from the main warehouse, and a bridge floating and sinking adjustment mechanism is installed on the bridge and close to the dredging cutter head assembly.

2. The dock dredging vessel with hull sliding according to claim 1, characterized in that: The sliding drive mechanism includes a rear winch assembly and a forward winch assembly. The forward winch assembly is arranged at one end of the floating platform close to the dredging cutter head assembly, and the rear winch assembly is arranged at one end of the floating platform away from the dredging cutter head assembly.

3. The dock dredging vessel with sliding hull according to claim 2, characterized in that: The rear towing winch assembly comprises a first winch frame, the first winch frame is mounted on one end of the floating platform, a rear towing winch is fixedly mounted on the first winch frame, a first traction rope is arranged on the rear towing winch, and an end of the first traction rope away from the rear towing winch is connected to one end of the main compartment; The forward winch assembly includes a second winch frame, which is installed at the other end of the floating platform. The forward winch is fixedly installed on the second winch frame. The forward winch is provided with a second traction rope, and one end of the second traction rope away from the forward winch is connected to the other end of the main warehouse.

4. The dock dredging vessel with sliding hull according to claim 3, characterized in that: The bridge lifting mechanism includes a lifting winch, which is fixedly mounted on the second winch frame. A third traction rope is provided on the lifting winch, and one end of the third traction rope away from the lifting winch is connected to one end of the bridge close to the dredging cutter head assembly.

5. The dock dredging vessel with sliding hull as claimed in claim 3, characterized in that: The floating platform includes two side floats arranged opposite to each other, the main warehouse is arranged between the two side floats, the first winch frame and the second winch frame are arranged across the two side floats, the adjacent sides of the two side floats are respectively provided with guide rails, and the two sides of the main warehouse are respectively provided with rollers, and the rollers are rotatably installed in the guide rails.

6. The dock dredging vessel with sliding hull according to claim 1, characterized in that: The dredging cutter head assembly includes a motor and a mud pump, which are both installed at one end of the bridge frame away from the main compartment. A cutter head for cutting dock mud is fixedly installed on the output shaft of the motor. A mud suction pipe is connected to one end of the mud pump facing the cutter head, and a mud discharge pipe is connected to the other end.

7. The dock dredging vessel with sliding hull according to claim 6, characterized in that: The dredging cutter head assemblies are provided in two groups, and the two groups of the dredging cutter head assemblies are arranged opposite to each other, and the rotation directions of the cutter heads of the two groups of the dredging cutter head assemblies are arranged in opposite directions.

8. The dock dredging vessel with sliding hull according to claim 1, characterized in that: The bridge frame floating and sinking adjustment mechanism includes an adjusting water tank, which is arranged at one end of the bridge frame close to the dredging cutter head assembly. A control valve is provided at the bottom of the adjusting water tank. A water pump is installed on the bridge frame or the floating platform, and the water pump is connected to the adjusting water tank.

9. The dock dredging vessel with sliding hull according to claim 1, characterized in that: A plurality of positioning anchors are arranged on the edge of the floating platform, an operation room is installed on the floating platform, and an engine and a generator are arranged in the inner cavity of the main warehouse.

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