WO2023185753A1

WO2023185753A1 - Rock breaking cutter suction dredger and dredging construction method thereof

Info

Publication number: WO2023185753A1
Application number: PCT/CN2023/084137
Authority: WO
Inventors: 苏岩松
Original assignee: 中国港湾工程有限责任公司
Priority date: 2022-04-01
Filing date: 2023-03-27
Publication date: 2023-10-05
Also published as: CN114635460B; CN114635460A; ZA202308389B

Abstract

Disclosed in the present invention is a rock breaking cutter suction dredger and a dredging construction method thereof. The rock breaking cutter suction dredger comprises: a cutter suction dredger body, the tail portion thereof being provided with a plurality of openings, and sliding grooves parallel to each other being provided at the top portion of the cutter suction dredger body on two sides of each opening; and a plurality of positioning mechanisms, each positioning mechanism being provided with a positioning support and a positioning pile, a positioning hole being formed on the positioning support, the peripheral edge of the positioning hole being provided with a positioning cylinder extending upward perpendicular to the top portion of the positioning support, a plurality of first hydraulic cylinders being provided around the periphery of the positioning hole at the top portion of the positioning support, the top portions of the plurality of hydraulic cylinders being provided with a positioning ring, the bottom portion of the positioning support being provided with two ridges parallel to each other, two sides of the positioning support also being provided with fixing blocks, and each fixing block being connected to a second hydraulic cylinder parallel to the sliding groove. According to the present invention, the design is reasonable, the operation is convenient, and the positioning mechanisms can ensure stable positioning of the rock breaking cutter suction dredger.

Description

Rock-breaking cutter suction ship and its dredging construction method

Technical field

The invention relates to the technical field of ship dredging equipment. More specifically, the present invention relates to a rock-breaking cutter suction ship and a dredging construction method thereof.

Background technique

The cutter suction ship is an engineering ship used in dredging and filling projects. It is suitable for excavating sandy soil, silt and other loose river bottoms. It is mostly used for construction in inland rivers, lakes and coastal port areas. It is one of the existing dredgers. The most important one. Positioning piles are used on dredgers such as cutter suction buckets, grab buckets, and backhoes. Their main function is positioning. The positioning piles on the traditional cutter suction ship are raised and lowered by a winch (hydraulic or electric drive) through a wire rope pulley, which stabilizes the hull and reduces the swing during operation. When the dredger lowers the positioning piles in the river, the river bed surface will Covered with stones, the positioning piles will cause huge pressure the moment they come into contact with the stones. After long-term operation, they will cause irreversible damage to the hydraulic system that lowers the positioning piles.

Contents of the invention

An object of the present invention is to provide a rock-breaking cutter suction ship and a dredging construction method thereof, which can not only improve the stability of the ship hull, but also ensure the flexibility of the hull rotation operation.

In order to achieve these objects and other advantages according to the present invention, according to one aspect of the present invention, the present invention provides a rock-breaking cutter suction ship, which includes:

The cutter suction ship hull has multiple openings at its stern, and mutually parallel chutes are provided on both sides of each opening on the top of the cutter suction ship hull;

There are multiple sets of positioning mechanisms. Each set of positioning mechanisms is provided with a positioning bracket and a positioning pile. A positioning hole is provided on the positioning bracket. A positioning cylinder extending upward perpendicular to the top of the positioning bracket is provided on the periphery of the positioning hole. The top of the bracket is provided with a plurality of first hydraulic cylinders around the outer periphery of the positioning holes. Positioning rings are installed on the tops of the plurality of first hydraulic cylinders. The positioning rings are provided with through holes in the radial direction. The bottom of the positioning bracket Two mutually parallel convex ribs are provided, and fixed blocks are provided on both sides of the positioning bracket. Each fixed block is connected to a second hydraulic cylinder parallel to the chute;

Among them, the positioning brackets of multiple sets of positioning mechanisms are correspondingly installed above the multiple openings, and the two ridge matching cards are embedded in the two chutes on both sides of the opening. Each positioning pile is provided with multiple fixing holes. Any positioning pile is inserted into the positioning ring and the positioning hole in turn. The through hole corresponds to any fixing hole and is plugged with a fixing screw.

Preferably, a positioning piece is rotatably installed at the bottom of each positioning pile, and the positioning piece is coaxially arranged with the positioning pile. The positioning piece includes:

The side wall of the positioning rod has multiple grooves along the axial direction, a screw rod is installed in each groove, and the multiple screw rods are connected to a synchronous motor;

A sleeve is set on the outer periphery of the positioning rod. The inner wall of the sleeve is provided with a plurality of connectors along the axial direction. The connectors are provided with threaded holes along the axis. The plurality of connectors are matched and accommodated in the sleeve. In multiple grooves, the screw is rotated and inserted into the threaded hole. The outer wall of the sleeve is hinged with multiple struts. A telescopic cylinder is also installed between the free end of each strut and the sleeve. The non-output end of each telescopic cylinder is hingedly connected to the side wall of the sleeve, and the output end is slidingly connected to the side wall of the support rod.

Preferably, the side wall of each strut close to the sleeve is provided with an arc-shaped surface, and a rectangular notch is provided in the arc-shaped surface, and the opposite side walls of the notch are provided with mutually parallel limiting grooves. The output end of any telescopic cylinder is provided with a rotating rod perpendicular to it, and the two ends of the rotating rod are coaxially provided with limit rods. The two limit rods are matched and inserted into the two limit grooves, and along the limit Groove slide.

Preferably, the curvature of the arcuate surface is consistent with the curvature of the outer side wall of the sleeve.

Preferably, a plurality of connectors are evenly distributed on the inner wall of the sleeve.

Preferably, a plurality of struts are evenly distributed on the outer wall of the sleeve.

The invention also provides a dredging construction method for a rock-breaking cutter suction ship, which includes the following steps:

Step 1. Move the rock-breaking cutter suction ship to the area to be constructed, lift multiple positioning piles in sequence and pass them through the positioning rings, positioning cylinders and positioning holes of any group of positioning mechanisms. One of the positioning piles extends vertically downward and Fixed and inserted into the river bottom, any fixed hole on the positioning pile is connected with the through hole on the positioning ring, and the fixing screw is inserted for fixation. The synchronous motor drives multiple screws to rotate synchronously, driving the sleeve to move down, and at the same time, multiple telescopic cylinders extend , so that multiple support rods are fixedly inserted around the positioning pile to complete the positioning work;

Step 2: The rock-breaking cutter suction ship swings around the positioning piles to perform dredging and desilting work. After the dredging and desilting work in this construction area is completed, the second hydraulic cylinder drives the positioning bracket to slide along the chute, thereby driving the rock-breaking cutter. The suction boat moves to the next construction area;

Step 3. The positioning piles of another set of positioning mechanisms extend vertically downward and are fixedly inserted into the river bottom. Any fixed hole on the positioning pile is connected to the through hole on the positioning ring. The fixing screws are inserted for fixation. The synchronous motor drives multiple screws. The synchronous rotation drives the sleeve to move downward, and at the same time, multiple telescopic cylinders extend, so that multiple support rods are fixedly inserted around the positioning pile to complete the positioning work of another positioning mechanism;

Step 4. For the positioning pile described in Step 1, the synchronous motor drives multiple screws to rotate synchronously, driving the sleeve to move upward. At the same time, multiple telescopic cylinders shorten to retract multiple struts. The first hydraulic cylinder extends to move the positioning pile. This positioning stake is lifted;

Step 5: The rock-breaking cutter suction vessel swings around the positioning piles in Step 3 again to carry out dredging work in the next construction area.

The invention at least includes the following beneficial effects: the invention is configured to fix the positioning pile and the positioning ring together, and then drives the positioning pile to rise and fall through a plurality of hydraulic cylinders. At the same time, the positioning bracket can slide along the chute to realize the movement of the positioning pile and improve rock breaking. The operability of the cutter suction ship; the bottom of the positioning pile is provided with a positioning rod, the outer circumference of the positioning rod is provided with a sleeve that can slide up and down, and the side wall of the sleeve is provided with an extendable and contractible strut, which can effectively improve the positioning pile. positioning capability, thereby ensuring the stable positioning of the hull.

Other advantages, objects, and features of the present invention will be apparent in part from the description below, and in part will be understood by those skilled in the art through study and practice of the present invention.

Description of drawings

Figure 1 is a schematic structural diagram of a technical solution of the present invention;

Figure 2 is a schematic structural diagram of a positioning pile in a technical solution of the present invention;

Figure 3 is a schematic structural diagram of the positioning pile when it is extended and positioned in a technical solution of the present invention;

Figure 4 is a schematic structural diagram of the sleeve in a technical solution of the present invention;

Figure 5 is a schematic structural diagram of a support rod in a technical solution of the present invention;

Figure 6 is a plan view of a support rod in a technical solution of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can implement it with reference to the text of the description.

It should be understood that terms such as "having," "comprising," and "including" as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are all conventional methods, and the reagents and materials, unless otherwise specified, can be obtained from commercial sources; in the description of the present invention, It should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense. For example, it can be a fixed connection and setting, or a detachable connection and setting, or Connect and set up in one piece. For general knowledge in this field Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances. The terms "horizontal", "vertical", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", The orientations or positional relationships indicated by "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have Specific orientations, construction and operation in specific orientations and therefore are not to be construed as limitations of the invention.

In one of the technical solutions, as shown in Figures 1 to 6, the present invention provides a rock-breaking cutter suction ship, which includes:

The cutter suction ship hull 100 has a plurality of openings 101 at its stern, and mutually parallel chute 102 are provided on the top of the cutter suction ship hull 100 on both sides of each opening 101;

There are multiple sets of positioning mechanisms. Each set of positioning mechanisms is provided with a positioning bracket 200 and a positioning pile 300. The positioning bracket 200 is provided with a positioning hole. The positioning hole is provided with a positioning cylinder extending upward perpendicular to the top of the positioning bracket 200. 201. A plurality of first hydraulic cylinders 202 are arranged on the top of the positioning bracket 200 around the outer periphery of the positioning hole. A positioning ring 203 is installed on the top of the plurality of first hydraulic cylinders 202. The positioning ring 203 has a radial opening. There are through holes. The bottom of the positioning bracket 200 is provided with two parallel ridges 204. Fixed blocks 205 are also provided on both sides of the positioning bracket 200. Each fixed block 205 is connected to the chute 102. parallel second hydraulic cylinder 206;

Among them, the positioning brackets 200 of multiple sets of positioning mechanisms are correspondingly installed above the plurality of openings 101, and the two protruding ribs 204 are matched and inserted into the two chute 102 on both sides of the opening 101. Each positioning pile 300 is provided with There are a plurality of fixing holes 301, and any positioning pile 300 is inserted into the positioning ring 203 and the positioning hole in sequence. The through hole corresponds to any fixing hole 301 and has a fixing screw 207 inserted therein.

In this technical solution, a cutter suction vessel hull 100 and multiple sets of positioning mechanisms are provided. The stern of the cutter suction vessel hull 100 is provided with multiple openings 101, and mutually parallel chute 102 are provided on both sides of each opening 101, and A set of positioning mechanisms is provided above each opening 101. Each set of positioning mechanisms includes a positioning bracket 200, a positioning ring 203 and a positioning pile 300. The bottom of the positioning bracket 200 is provided with two mutually parallel ridges 204. The ridges 204 are respectively matched and inserted into the two slide grooves 102. Two fixed blocks 205 are also provided on both sides of the positioning bracket 200. A second hydraulic cylinder 206 is provided on the same side of the two fixed blocks 205. The second hydraulic cylinder 206 is parallel to the chute 102, and its non-output end is fixed on the cutter suction ship hull 100, and the output end is fixedly connected to the fixed block 205. The second hydraulic cylinder 206 expands and contracts to make the positioning bracket 200 slide above the opening 101. A positioning hole is provided in the space, and a positioning cylinder 201 extending upward perpendicular to the positioning bracket 200 is provided on the periphery of the positioning hole. A plurality of first hydraulic cylinders 202 are vertically arranged around the positioning cylinder 201, and the tops of the plurality of hydraulic cylinders are fixed. At the bottom of the positioning ring 203, the positioning ring 203, the positioning cylinder 201, and the positioning hole are coaxially arranged. The curved side wall of the positioning ring 203 has a through hole along the radial direction. The positioning pile 300 passes through the positioning ring 203 and the positioning hole in sequence. Tube 201, fixed position holes and openings 101, and the side wall of the positioning pile 300 is provided with multiple fixing holes 301. The multiple fixing holes 301 are arranged in a row along the axis. Any fixing hole 301 corresponds to the through hole and is inserted into a removable The fixing screw 207 fixes the two. When in use, the positioning pile 300 is penetrated by the positioning ring 203, passes through the positioning cylinder 201, the positioning hole and the opening 101 in sequence, and is fixed by inserting a fixing screw 207 into the corresponding fixing hole 301 and through hole, and the first hydraulic cylinder The expansion and contraction of 202 drives the positioning pile 300 to rise and fall, and the expansion and contraction of the second hydraulic cylinder 206 drives the positioning bracket 200 to slide along the chute 102, thereby driving the cutter suction ship hull 100 to move. Multiple sets of positioning mechanisms operate alternately, so that the rock breaking cutter suction ship can be used in different constructions. Dredging and desilting work is being carried out in the area. The positioning pile 300 and the positioning ring 203 are fixed by the fixing screw 207, so that the first hydraulic cylinder 202 can drive the positioning pile 300 to rise and fall stably, improving the stability of the device. The positioning cylinder 201 is provided to effectively prevent the positioning pile 300 from tilting; Matching ribs 204 and chute 102 are provided on the positioning bracket 200 and the hull, and the two second hydraulic cylinders 206 drive the positioning bracket 200 to slide, which can drive the ship body to move stably; multiple sets of positioning mechanisms operate alternately, so that multiple positioning piles 300 It drives the rock-breaking cutter suction ship to work in different construction areas and improves the operability of the cutter suction ship, thus improving its utilization and economy.

In another technical solution, as shown in Figures 1 to 6, a positioning piece is rotatably installed at the bottom of each positioning pile 300. The positioning piece is coaxially arranged with the positioning pile 300. The positioning piece includes:

The side wall of the positioning rod 310 has a plurality of grooves 311 along the axial direction, and a screw 312 is installed in each groove 311. The plurality of screws 312 are connected to a synchronous motor;

The sleeve 320 is set on the outer periphery of the positioning rod 310. The inner wall of the sleeve 320 is provided with a plurality of connectors 321 along the axial direction. The connectors 321 are provided with threaded holes 322 along the axis. A connecting piece 321 is matched and accommodated in a plurality of grooves 311, and the screw rod 312 is rotated and inserted into the threaded hole 322. A plurality of struts 323 are hinged to the outer wall of the sleeve 320, and each strut 323 has a A telescopic cylinder 324 is also installed between the free end and the sleeve 320. The non-output end of each telescopic cylinder 324 is hingedly connected to the side wall of the sleeve 320, and the output end is slidingly connected to the side wall of the support rod 323.

In this technical solution, a positioning rod 310 is installed on the bottom bearing of the positioning pile 300. The positioning rod 310 and the positioning pile 300 can rotate coaxially. A sleeve 320 is set around the outer circumference of the positioning rod 310. A plurality of grooves 311 are axially formed on the rod 310, and a rotatable screw 312 is installed in each groove 311. The screw 312 is parallel to the axis of the positioning rod 310, and the inner wall of the sleeve 320 is axially A plurality of connectors 321 are provided. The shape and size of the connectors 321 match the groove 311. The connectors 321 are provided with threaded holes 322 along the axial direction. The connectors 321 are matched and inserted into the groove 311. And the screw rod 312 is matched and inserted into the threaded hole 322. The rotation of the screw rod 312 can drive the sleeve 320 to move axially. The outer wall of the sleeve 320 is hinged with a plurality of struts 323. Each strut 323 is connected to the sleeve 320. A telescopic cylinder 324 is connected between them, and the telescopic cylinder 324 telescopically moves the support rod 323 to expand or contract. In this technical solution, Multiple sets of matching grooves 311 and connectors 321 are provided inside the positioning rod 310 and the sleeve 320 to ensure that the sleeve 320 slides smoothly in the axial direction. A plurality of struts 323 are provided outside the sleeve 320 to improve the stability of the positioning pile 300 property, the support rod 323 can be folded by the telescopic cylinder 324, which can reduce the resistance of the positioning pile 300 when it descends in the water, which is beneficial to the stable positioning of the positioning pile 300.

In another technical solution, as shown in Figures 1 to 6, the side wall of each strut 323 close to the sleeve 320 is provided with an arcuate surface 325, and a rectangular notch 326 is opened in the arcuate surface 325. The opposite side walls of the notch 326 are provided with mutually parallel limiting grooves 327. The output end of any telescopic cylinder 324 is provided with a rotating rod 328 perpendicular to it. The two ends of the rotating rod 328 are coaxially provided with limiting grooves. The rod 329 and the two limiting rods 329 are inserted into the two limiting grooves 327 and slide along the limiting grooves 327 . In this technical solution, the contact side wall of the support rod 323 and the sleeve 320 is an arc surface 325 that matches the side wall of the sleeve 320, and the arc surface 325 of the support rod 323 is provided with a gap 326 for accommodating the telescopic cylinder 324. , so that the support rod 323 and the sleeve 320 can fit closely, effectively reducing the resistance of the positioning pile 300 when it descends in the water.

In another technical solution, as shown in FIGS. 1 to 6 , the curvature of the arcuate surface 325 is consistent with the curvature of the outer side wall of the sleeve 320 . In this technical solution, the support rod 323 and the sleeve 320 are in close contact, which can effectively reduce the resistance of the positioning pile 300 when it descends in the water.

In another technical solution, as shown in FIGS. 1 to 6 , a plurality of connectors 321 are evenly distributed on the inner wall of the sleeve 320 at equal intervals. In this technical solution, multiple connectors 321 are symmetrically distributed to ensure stable sliding of the sleeve 320.

In another technical solution, as shown in FIGS. 1 to 6 , a plurality of struts 323 are evenly distributed on the outer side wall of the sleeve 320 at equal intervals. In this technical solution, multiple struts 323 are symmetrically distributed to improve positioning stability.

Step 1: Move the rock-breaking cutter suction ship to the area to be constructed, lift multiple positioning piles 300 in sequence and pass them through the positioning rings 203, positioning cylinders 201 and positioning holes of any group of positioning mechanisms. One of the positioning piles 300 is vertical. Extend downward and fixedly insert into the river bottom. Any fixing hole 301 on the positioning pile 300 is connected with the through hole on the positioning ring 203. The fixing screw 312207 is inserted for fixation. The synchronous motor drives multiple screws 312 to rotate synchronously and drives the sleeve 320. Move downward, and at the same time, the plurality of telescopic cylinders 324 are extended, so that the plurality of support rods 323 are fixedly inserted around the positioning pile 300 to complete the positioning work;

Step 2: The rock-breaking cutter suction ship swings around the positioning piles 300 to perform dredging and desilting work. After the dredging and desilting work in this construction area is completed, the second hydraulic cylinder 206 drives the positioning bracket 200 to slide along the chute 102, thereby Drive the rock-breaking cutter suction ship to move to the next construction area;

Step 3: The positioning piles 300 of another set of positioning mechanisms extend vertically downward and are fixedly inserted into the river bottom. Any fixing hole 301 is docked with the through hole on the positioning ring 203, and the fixing screw 312207 is inserted for fixation. The synchronous motor drives multiple screws 312 to rotate synchronously, driving the sleeve 320 to move downward, and at the same time, the multiple telescopic cylinders 324 extend, so that A plurality of support rods 323 are fixedly inserted around the positioning pile 300 to complete the positioning work of another positioning mechanism;

Step 4. For the positioning pile 300 described in Step 1, the synchronous motor drives the plurality of screws 312 to rotate synchronously, driving the sleeve 320 to move upward. At the same time, the plurality of telescopic cylinders 324 are shortened to retract the plurality of struts 323. The first hydraulic pressure The cylinder 202 is extended to lift the positioning pile 300;

Step 5: The rock-breaking cutter suction vessel swings around the positioning piles 300 in Step 3 again to carry out dredging work in the next construction area.

In this technical solution, a sleeve 320 set around the periphery of the positioning pile 300 and a plurality of struts 323 are used to cooperate. When the positioning pile 300 is driven up or down by gravity or the first hydraulic cylinder 202, the plurality of struts 323 are retracted. Close to the sleeve 320 to reduce the resistance of the positioning pile 300 when it descends in the water. When the positioning pile 300 drops to a certain depth, the support rod 323 stretches out and is positioned around the positioning pile 300, thereby improving the positioning of the positioning pile 300. Stability; multiple positioning mechanisms alternately and repeatedly work, so that the rock-breaking cutter suction vessel is driven by the second hydraulic cylinder 206 to move, and then swings around multiple positioning piles 300 in sequence, so as to carry out dredging and desilting work in different construction areas, with flexible operation It is convenient and improves the operability of the rock-breaking cutter suction ship, thus improving its utilization and economy.

Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and embodiments. They can be applied to various fields suitable for the present invention. For those familiar with the art, they can easily Additional modifications may be made, and the invention is therefore not limited to the specific details and illustrations shown and described herein without departing from the general concept defined by the claims and equivalent scope.

Claims

The rock-breaking cutter suction ship is characterized by:

The cutter suction ship hull has multiple openings at its stern, and mutually parallel chutes are provided on both sides of each opening on the top of the cutter suction ship hull;

There are multiple sets of positioning mechanisms. Each set of positioning mechanisms is provided with a positioning bracket and a positioning pile. A positioning hole is provided on the positioning bracket. A positioning cylinder extending upward perpendicular to the top of the positioning bracket is provided on the periphery of the positioning hole. The top of the bracket is provided with a plurality of first hydraulic cylinders around the outer periphery of the positioning holes. Positioning rings are installed on the tops of the plurality of first hydraulic cylinders. The positioning rings are provided with through holes in the radial direction. The bottom of the positioning bracket Two mutually parallel convex ribs are provided, and fixed blocks are provided on both sides of the positioning bracket. Each fixed block is connected to a second hydraulic cylinder parallel to the chute;

Among them, the positioning brackets of multiple sets of positioning mechanisms are correspondingly installed above the multiple openings, and the two ridge matching cards are embedded in the two chutes on both sides of the opening. Each positioning pile is provided with multiple fixing holes. Any positioning pile is inserted into the positioning ring and the positioning hole in sequence, and the through hole corresponds to any fixing hole and is plugged with a fixing screw;

A positioning piece is rotatably installed at the bottom of each positioning pile. The positioning piece is coaxially arranged with the positioning pile. The positioning piece includes:

The side wall of the positioning rod has multiple grooves along the axial direction, a screw rod is installed in each groove, and the multiple screw rods are connected to a synchronous motor;

A sleeve is set on the outer periphery of the positioning rod. The inner wall of the sleeve is provided with a plurality of connectors along the axial direction. The connectors are provided with threaded holes along the axis. The plurality of connectors are matched and accommodated in the sleeve. In multiple grooves, the screw is rotated and inserted into the threaded hole. The outer wall of the sleeve is hinged with multiple struts. A telescopic cylinder is also installed between the free end of each strut and the sleeve. The non-output end of each telescopic cylinder is hingedly connected to the side wall of the sleeve, and the output end is slidingly connected to the side wall of the support rod.
The rock breaking cutter suction ship according to claim 1, characterized in that the side wall of each support rod close to the sleeve is set as an arc surface, and a rectangular gap is opened in the arc surface, and the gap is opposite to the The two side walls of the cylinder are provided with mutually parallel limit grooves, and the output end of any telescopic cylinder is provided with a rotating rod perpendicular to it. The two ends of the rotating rod are provided with limit rods coaxially, and the two limit rods are matched and inserted. Access the two limit grooves and slide along the limit grooves.
The rock breaking cutter suction ship according to claim 2, characterized in that the curvature of the arc-shaped surface is consistent with the curvature of the outer side wall of the sleeve.
The rock breaking cutter suction ship according to claim 1, characterized in that a plurality of connecting pieces are evenly distributed on the inner wall of the sleeve at equal intervals.
The rock breaking cutter suction ship according to claim 1, characterized in that a plurality of struts are evenly distributed on the outer side wall of the sleeve at equal intervals.
The dredging construction method based on the rock-breaking cutter suction ship according to any one of claims 1 to 5 is characterized in that it includes the following steps:

Step 1. Move the rock-breaking cutter suction ship to the area to be constructed, lift multiple positioning piles in sequence and pass them through the positioning rings, positioning cylinders and positioning holes of any group of positioning mechanisms. One of the positioning piles extends vertically downward and Fixed and inserted into the river bottom, any fixed hole on the positioning pile is connected with the through hole on the positioning ring, and the fixing screw is inserted for fixation. The synchronous motor drives multiple screws to rotate synchronously, driving the sleeve to move down, and at the same time, multiple telescopic cylinders extend , so that multiple support rods are fixedly inserted around the positioning pile to complete the positioning work;

Step 2: The rock-breaking cutter suction ship swings around the positioning piles to perform dredging and desilting work. After the dredging and desilting work in this construction area is completed, the second hydraulic cylinder drives the positioning bracket to slide along the chute, thereby driving the rock-breaking cutter. The suction boat moves to the next construction area;

Step 3. The positioning piles of another set of positioning mechanisms extend vertically downward and are fixedly inserted into the river bottom. Any fixed hole on the positioning pile is connected to the through hole on the positioning ring. The fixing screws are inserted for fixation. The synchronous motor drives multiple screws. The synchronous rotation drives the sleeve to move downward, and at the same time, multiple telescopic cylinders extend, so that multiple support rods are fixedly inserted around the positioning pile to complete the positioning work of another positioning mechanism;

Step 4. For the positioning pile described in Step 1, the synchronous motor drives multiple screws to rotate synchronously, driving the sleeve to move upward. At the same time, multiple telescopic cylinders shorten to retract multiple struts. The first hydraulic cylinder extends to move the positioning pile. This positioning stake is lifted;

Step 5: The rock-breaking cutter suction vessel swings around the positioning piles in Step 3 again to carry out dredging work in the next construction area.