CN118997254A - Ditcher for laying submarine cable in intertidal zone - Google Patents
Ditcher for laying submarine cable in intertidal zone Download PDFInfo
- Publication number
- CN118997254A CN118997254A CN202410925963.6A CN202410925963A CN118997254A CN 118997254 A CN118997254 A CN 118997254A CN 202410925963 A CN202410925963 A CN 202410925963A CN 118997254 A CN118997254 A CN 118997254A
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- China
- Prior art keywords
- mud
- mechanical arm
- buoyancy adjusting
- cable
- trencher
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
- E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
- B60F3/0007—Arrangement of propulsion or steering means on amphibious vehicles
- B60F3/0015—Arrangement of propulsion or steering means on amphibious vehicles comprising tracks specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
- B60F3/0061—Amphibious vehicles specially adapted for particular purposes or of a particular type
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8858—Submerged units
- E02F3/8866—Submerged units self propelled
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
- E02F3/9218—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with jets
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
- E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
- E02F3/9237—Suction wheels with axis of rotation in transverse direction of the longitudinal axis of the suction pipe
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
- E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
- E02F5/105—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water self-propulsed units moving on the underwater bottom
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
- E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
- E02F5/107—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water using blowing-effect devices, e.g. jets
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
- E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
- E02F5/109—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water using rotating digging elements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/02—Travelling-gear, e.g. associated with slewing gears
- E02F9/026—Travelling-gear, e.g. associated with slewing gears for moving on the underwater bottom
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/10—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
本发明公开了一种用于潮间带海底电缆敷设的挖沟机，涉及海底电缆敷设设备领域。现有的潮间带海底电缆敷设采用水陆挖掘机进行预挖沟方式时，沟槽容易被潮水冲刷填复，存在施工窗口期，有效作业时间短，施工效率低。本发明包括切割机构、高压冲射装置、排泥装置、主体支撑梁、履带式驱动装置、浮力调节装置、螺旋桨驱动装置和载缆装置。通过履带式驱动装置、浮力调节装置和螺旋桨驱动装置可方便适应潮间带似海非海，似陆非陆的施工环境，高压冲射装置和排泥装置配合切割机构进行开沟，载缆装置缠绕有登陆段的海底电缆，在挖沟的后方进行铺缆，然后通过排泥装置覆盖沟渠，完成铺缆，有效提升了海底电缆在潮间带的敷设效率。
The present invention discloses a trenching machine for laying submarine cables in intertidal zones, and relates to the field of submarine cable laying equipment. When the existing intertidal submarine cable laying adopts the pre-trenching method of amphibious excavators, the trench is easily washed and filled by the tide, there is a construction window period, the effective operation time is short, and the construction efficiency is low. The present invention includes a cutting mechanism, a high-pressure jet device, a mud discharge device, a main support beam, a crawler drive device, a buoyancy adjustment device, a propeller drive device, and a cable carrier. The crawler drive device, the buoyancy adjustment device, and the propeller drive device can be conveniently adapted to the construction environment of the intertidal zone that is like the sea but not the sea, and like the land but not the land. The high-pressure jet device and the mud discharge device cooperate with the cutting mechanism to dig trenches, and the cable carrier is wrapped with a submarine cable of the landing section. The cable is laid behind the trenching, and then the trench is covered by the mud discharge device to complete the cable laying, which effectively improves the laying efficiency of the submarine cable in the intertidal zone.
Description
Technical Field
The invention relates to the field of submarine cable laying equipment, in particular to a trencher for laying submarine cables in intertidal zones.
Background
The submarine cable laying process comprises a submarine middle section laying process and a landing section laying process, wherein the water depth of a shoal in the land area direction is gradually reduced in the landing section laying process, and the shoal is subjected to an intertidal zone before the cable is completely landed, wherein the intertidal zone is a shoal zone between a high tide line and a low tide line, the zone is sea at a high tide level, is land at a low tide level, has complex geological conditions, and common land equipment and large-scale laying ships cannot enter the area for construction.
During large tides, the current laying technology is that a laying ship reaches the nearest landing point on the offshore, and under the combined traction action of a cable laying machine and a stranding machine, the rest sea cable starts to draw and land in the direction of a fixed landing platform by means of a tire floating support. And then the sea cable is shifted from the fixed landing platform to a sea cable groove dug by the floating type amphibious excavator in advance, and backfilling and burying of the sea cable are carried out by adopting a mode of combining the amphibious excavator with manpower.
The existing intertidal submarine cable laying technology is affected by the influence of intertidal hydrological weather on construction, has a construction window period, is short in effective operation time, and is easy to flush and fill a trench by tidal water when an amphibious excavator is adopted for pre-ditching, so that the construction efficiency is low. The floating type amphibious excavator is combined with manpower in the construction process of the buried facilities, so that the automation degree is low, and construction errors are easy to cause.
Disclosure of Invention
The invention aims to solve the technical problems and provide a trencher for laying the submarine cable in the intertidal zone, which aims to improve the laying efficiency of the submarine cable in the intertidal zone. For this purpose, the present invention adopts the following technical scheme.
The utility model provides a trencher for seafloor cable laying in intertidal zone, includes the cutting mechanism that is used for cutting the ditching, is used for the high-pressure jetting device of scattering mud, is used for sucking away mud row's mud device, main part supporting beam, be used for the crawler-type drive arrangement that marches on the tidal flat, be used for making the trencher be in the buoyancy adjusting device of floating state in the deep waters, be used for carrying out mobile drive's screw drive arrangement and be used for bearing the cable that lands section submarine cable when the trencher floats, crawler-type drive arrangement connect in the left and right sides of main part supporting beam symmetrically, cutting mechanism connect in the front side region of main part supporting beam upper end, buoyancy adjusting device locate above the main part supporting beam, screw drive arrangement locate the left and right sides of buoyancy adjusting device symmetrically, cable drive arrangement in the top surface centre of buoyancy adjusting device, high-pressure jetting device and mud row's mud device according to bilateral symmetry setting, high-pressure jetting device's jet orifice and mud row's the suction opening of a mouthful all face the cutting mechanism, high-pressure jetting device and mud row's mud suction opening all lie in the rear side of main part of the mud row's of the main part below spout.
The ditch excavator realizes floating and the state of the beach through the buoyancy adjusting device, the construction is advanced in the floating state of the device through the propeller driving device, the conversion between the floating state and the state of the beach is realized, the device is helped to adapt to different tide levels, the effective construction time is prolonged, the high-efficiency ditching is realized through the cutting mechanism matched with the high-pressure flushing device and the mud discharging device, the probability that the cable ditch is flushed and filled by tidal water is reduced, the wider crawler-type driving device is matched with the buoyancy adjusting box, the pressure of the ditch excavator to the ground is reduced, the walking construction on a softer mud surface is realized, the ditch-like construction environment is adapted to the sea, the construction environment is similar to Liu Feiliu, the cable carrying device is wound with a submarine cable of a landing section, the cable is laid behind the ditch, then the ditch is covered through the mud discharging device, and the cable laying efficiency of the submarine cable in a tidal zone is effectively improved.
As a preferable technical means: the cutting mechanism comprises a cutting wheel, a first mechanical arm, a second mechanical arm, a base, a first hydraulic driving rod and a second hydraulic driving rod, wherein the base is fixedly connected with the front side of the upper end of a main body supporting beam, the lower end of the second mechanical arm is rotatably connected to the base, the second hydraulic driving rod is fixedly connected between the base and the middle lower part of the second mechanical arm and is rotatably connected with the base and the middle lower part of the second mechanical arm, the first hydraulic driving rod is connected to the upper end of the first mechanical arm and the middle part of the second mechanical arm and is rotatably connected with the upper end of the second mechanical arm, and the cutting wheel is rotatably connected to the lower end of the first mechanical arm. The angle and the height of the mechanical arm can be conveniently adjusted by the hydraulic driving rod, so that the height position of the cutting wheel can be adjusted, the cutting wheel is positioned at an ideal trenching height, and the trenching efficiency is improved.
As a preferable technical means: the high-pressure jetting device comprises a front jetting arm, a water pump and a water suction pipe, wherein the water suction pipe is downwards turned forward after passing through the top surface of the buoyancy adjusting device from the lower direction of the rear side of the main body supporting beam, the front jetting arm is arranged at the front end of the water suction pipe, the front jetting arm is inclined towards the rear lower side of the cutting wheel, the jetting nozzle is arranged at the lower end of the front jetting arm, the water suction port is arranged at the rear lower end of the water suction pipe, and the water pump is connected to the water suction pipe on the top surface of the buoyancy adjusting device to provide water suction and jetting power. Water is sucked from the rear side and is sprayed out under the cutting wheel at high speed under the action of the water pump, so that slurry blocks cut off by the cutting wheel are hydrated, and the mud discharging device is convenient to discharge.
As a preferable technical means: the mud discharging device comprises a suction pipe, a dredging pump and a mud discharging pipe, wherein the mud discharging pipe passes through the top surface of the buoyancy adjusting device from the lower direction of the rear side of the main body supporting beam and then turns downwards and forwards at the front side of the buoyancy adjusting device, the suction pipe is arranged at the front end of the mud discharging pipe, the suction pipe inclines towards the rear lower side of the cutting wheel, the mud suction port is arranged at the lower end of the suction pipe, the mud nozzle is arranged at the rear lower end of the mud discharging pipe, and the dredging pump is connected to the mud discharging pipe on the top surface of the buoyancy adjusting device to provide suction and mud discharging power. The mud in the ditch under the cutting wheel can be conveniently sucked in, and is discharged from the mud nozzle on the rear side through the dredging pump, so that the laid submarine cable is covered.
As a preferable technical means: the buoyancy adjusting device comprises a buoyancy adjusting box and a pressure adjusting pipe, wherein the buoyancy adjusting box is fixedly connected to the top of the main body supporting beam, and the pressure adjusting pipe is arranged on the left side or the right side of the bottom of the front end of the buoyancy adjusting box. Through buoyancy adjusting box and pressure regulating pipe, can effectively realize buoyancy adjustment, float and the conversion of the state of sitting beach, help the device adaptation different tide levels.
As a preferable technical means: the cable carrying device comprises an electric cable tray and a support, wherein the support is fixedly connected to the middle area of the top surface of the buoyancy adjusting box, the electric cable tray is rotatably connected to the top end of the support, and the axial direction of the electric cable tray is the left-right direction. After the deep sea area is paved, before entering the intertidal zone, the submarine cable of the landing section can be transferred to the electric cable drum, and then ditching and submarine cable paving of the intertidal zone are started.
As a preferable technical means: the number of the propeller driving devices is 4, the 4 propeller driving devices are symmetrically arranged on the left side and the right side of the buoyancy adjusting box according to 2 groups of 1, the 2 propeller driving devices in each group are linearly arranged in the front-back direction, and the axial direction of the propeller driving devices is the front-back direction. The 4 symmetrically arranged propeller driving devices can realize higher driving force and balanced thrust distribution.
As a preferable technical means: the cutting wheel adopts a reamer type cutting wheel, and the wheel shaft of the cutting wheel is covered with reamer blades. The reamer type cutting wheel can better cut up the mud blocks which are ditched and cut, and mud is easier to be punched by the high-pressure punching device.
As a preferable technical means: the first mechanical arm and the second mechanical arm are formed by welding after being cut by steel plates. Convenient manufacture and material saving.
As a preferable technical means: the number of the second hydraulic driving rods is 2, the second hydraulic driving rods are symmetrically connected to the left side and the right side of the second mechanical arm, the number of the first hydraulic driving rods is1, and the first hydraulic driving rods are connected to the symmetrical center positions of the second mechanical arm and the first mechanical arm. The second hydraulic drive rod bears the drive object including the second arm and first arm and cutting wheel are whole, consequently needs 2, and the object of first hydraulic drive rod drive includes first arm and cutting wheel, and relative drive power demand is less, only needs one just can be qualified.
The beneficial effects are that: the buoyancy adjusting device can realize floating and beach state, the propeller driving device can realize floating state advancing construction, floating and beach state conversion, help the device to adapt to different tide levels, increase effective construction time, realize efficient ditching through the cutting mechanism matched with the high-pressure flushing device and the mud discharging device, reduce the probability of filling the cable trench by flushing with tidal water, through the wider crawler-type driving device and the buoyancy adjusting box, make the pressure of the ditcher to the ground reduce, realize walking construction on a softer mud surface, adapt to the construction environment like sea and Liu Feiliu, the cable carrying device winds submarine cables with landing sections, spread cables behind the ditches, then cover the ditches through the mud discharging device, complete the integrated operation of ditching and cable spreading, effectively improve the laying efficiency of submarine cables in a tidal zone, the device does not need to perform foundation treatment on the construction environment, does not need temporary roads and permanence in a construction field, effectively protect the ecological environment of the tidal zone, improve the construction efficiency of cofferdam, reduce the construction cost, effectively improve the construction efficiency of the cofferdam, and effectively reduce the construction cost, and effectively improve the construction precision due to the fact that the tidal construction efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic view of another view-oriented structure of the present invention.
In the figure: 1. a main body support beam; 2. a propeller drive; 3. a crawler-type driving device; 4. a cutting wheel; 5. a first mechanical arm; 6. a second mechanical arm; 7. a first hydraulic drive lever; 8. a second hydraulic drive lever; 9. a base; 10. a front spray arm; 11. a water pump; 12. a water suction pipe; 13. a suction tube; 14. a dredging pump; 15. a mud pipe; 16. a buoyancy adjustment tank; 17. a pressure regulating tube; 18. an electric cable reel; 19. and (3) a bracket.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the attached drawings.
In the description of the present invention, it should be understood that terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are merely for convenience of description and simplicity of description based on the orientation or positional relationship shown in the drawings, and do not necessarily indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and that these terms of expressing directions are only for illustration and should not be construed as limitations, such as "upper", "lower" are not necessarily limited to directions opposite or coincident with the direction of gravity, since the embodiments of the present invention may be arranged in different directions.
As shown in fig. 1 and 2, a trencher for laying a submarine cable in an intertidal zone comprises a cutting mechanism for cutting ditches, a high-pressure jetting device for flushing away mud, a mud discharging device for sucking away mud, a main body supporting beam 1, a crawler-type driving device 3 for traveling on a beach, a buoyancy adjusting device for enabling the trencher to be in a floating state in a deeper water area, a propeller driving device 2 for moving and driving the trencher while floating, and a cable carrying device for carrying a submarine cable in a landing section.
The crawler-type driving device 3 is symmetrically connected to the left side and the right side of the main body supporting beam 1, the bottom surface of the crawler-type driving device 3 is wider, the contact surface with the mud flat is large, a larger supporting area can be provided, the pressure intensity of the trencher to the ground is reduced, and the walking construction on a softer mud surface is realized.
The cutting mechanism is connected to the front side area of the upper end of the main body supporting beam 1, the cutting mechanism comprises a cutting wheel 4, a first mechanical arm 5, a second mechanical arm 6, a base 9, a first hydraulic driving rod 7 and a second hydraulic driving rod 8, the base 9 is fixedly connected to the front side of the upper end of the main body supporting beam 1, the lower end of the second mechanical arm 6 is rotatably connected to the base 9, the second hydraulic driving rod 8 is fixedly connected between the base 9 and the middle lower part of the second mechanical arm 6 and is rotatably connected with the middle part of the second mechanical arm 6, the first hydraulic driving rod 7 is connected to the upper end of the first mechanical arm 5 and is rotatably connected with the middle part of the second mechanical arm 6, the upper end of the second mechanical arm 6 is rotatably connected with the upper part of the first mechanical arm 5, the cutting wheel 4 is rotatably hinged to the lower end of the first mechanical arm 5, the hydraulic driving rod can conveniently adjust the angle and the height of the mechanical arm, the height of the cutting wheel is adjusted, the ideal trenching height is achieved, and the trenching efficiency is improved. The number of the second hydraulic driving rods 8 is 2, the second hydraulic driving rods are symmetrically connected to the left side and the right side of the second mechanical arm 6, the number of the first hydraulic driving rods 7 is 1, and the second hydraulic driving rods are connected to the symmetrical center positions of the second mechanical arm 6 and the first mechanical arm 5. The second hydraulic driving rod 8 bears the driving object including the second mechanical arm 6 and the first mechanical arm 5 and the cutting wheel 4, so 2 objects are needed, the object driven by the first hydraulic driving rod 7 includes the first mechanical arm 5 and the cutting wheel 4, and the relative driving power requirement is smaller, and only one object is needed.
In order to reduce the cost, the first mechanical arm 5 and the second mechanical arm 6 are formed by welding after steel plates are cut. Convenient manufacture, material saving and low cost.
The buoyancy adjusting device comprises a buoyancy adjusting box 16 and a pressure adjusting pipe 17, the buoyancy adjusting box 16 is connected and fixed on the top of the main body supporting beam 1, the pressure adjusting pipe 17 is arranged on the left side or the right side of the bottom of the front end of the buoyancy adjusting box, the propeller driving devices 2 are symmetrically arranged on the left side and the right side of the buoyancy adjusting device, the number of the propeller driving devices 2 is 4, the 4 propeller driving devices 2 are symmetrically arranged on the left side and the right side of the buoyancy adjusting box 16 according to 2 groups, the 2 propeller driving devices 2 of each group are linearly arranged front and back, the axial direction of the propeller driving devices 2 is the front and back direction, the 4 symmetrically arranged propeller driving devices 2 can realize higher pushing force, the pushing force distribution is balanced, when the trencher is in deeper water, the buoyancy adjusting box 16 can realize the adjustment of the floating state of the trencher through the pumping water of the pressure adjusting pipe 17, the help device adapts to different tide levels, the 4 propeller driving devices 2 are distributed on the two sides of the buoyancy adjusting box 16, and when the trencher is in the floating state, the driving device can realize driving through the propeller driving device 2.
The cable carrying device is connected to the top of the buoyancy adjusting device and comprises an electric cable drum 18 and a support 19, the lower end of the support 19 is fixedly connected to the middle area of the top surface of the buoyancy adjusting box 16, the electric cable drum 18 is rotatably connected to the top end of the support 19, and the axial direction of the electric cable drum 18 is left and right. After the deep sea is laid, the submarine cable of the landing section may be transferred to the electric reel 18 before entering the intertidal zone, and then trenching and submarine cable laying of the intertidal zone may begin.
The high-pressure flushing device and the mud discharging device are symmetrically arranged left and right, a flushing nozzle of the high-pressure flushing device and a mud suction opening of the mud discharging device face to the ditching position of the cutting mechanism, and a water suction opening of the high-pressure flushing device and a mud suction opening of the mud discharging device are positioned below the rear side of the main supporting beam 1.
The high-pressure jetting device comprises a front jetting arm 10, a water pump 11 and a water suction pipe 12, wherein the water suction pipe 12 passes through the top surface of the buoyancy adjusting device in the lower direction of the rear side of the main body supporting beam 1, then turns downwards and forwards at the front side of the buoyancy adjusting device, the front jetting arm 10 is arranged at the front end of the water suction pipe 12, the front jetting arm 10 inclines towards the rear lower side of the cutting wheel 4, the front jetting arm 10 is positioned at the left side of the mechanical arm and extends to one side of the cutting wheel 4, a jetting nozzle is positioned at the lower end of the front jetting arm, a water suction port is positioned at the rear lower end of the water suction pipe 12, and the water pump 11 is connected to the water suction pipe 12 of the top surface of the buoyancy adjusting device to provide water suction and jetting power. Water is sucked from the rear side and is sprayed out under the cutting wheel 4 at a high speed under the action of the water pump 11, so that slurry blocks cut off by the cutting wheel 4 are hydrated, and the mud discharging device is convenient to discharge.
The mud discharging device comprises a suction pipe 13, a dredging pump 14 and a mud discharging pipe 15, wherein the mud discharging pipe 15 passes through the top surface of the buoyancy adjusting device in the lower direction of the rear side of the main body supporting beam 1 and then turns downwards and forwards at the front side of the buoyancy adjusting device, the suction pipe 13 is arranged at the front end of the mud discharging pipe 15, the suction pipe 13 is positioned at the right side of the mechanical arm and extends to the rear lower side of one side of the cutting wheel 4, a mud suction port is positioned at the lower end of the suction pipe 13, a mud nozzle is positioned at the rear lower end of the mud discharging pipe 15, and the dredging pump 14 is connected to the position of the mud discharging pipe 15 on the top surface of the buoyancy adjusting device so as to provide suction and mud discharging power. The mud in the trench under the cutting wheel 4 can be conveniently sucked in and discharged from the mud jet on the rear side by the dredging pump 14, covering the laid submarine cable.
For better chopping of the mud cake, the cutting wheel 4 is a reamer type cutting wheel 4, and the axle of the cutting wheel 4 is covered with reamer blades. The reamer type cutting wheel 4 can better cut up the mud blocks which are ditched and cut, and the mud blocks are easier to be punched into mud by a high-pressure punching device.
When the sea cable is laid in facilities, the main laying ship reaches the nearest landing point on the offshore, the rest sea cables are all passed through an electric cable tray 18 of the ditcher, the ditcher achieves a floating state through a buoyancy adjusting box 16, under the driving of a propeller driving device 2 and under the cooperation of the buoyancy adjusting device, a carrying cable lands in the direction of a shoal, the sea cable reaches an intertidal zone, the buoyancy adjusting box 16 adjusts the buoyancy of the ditcher through a pressure adjusting pipe 17, the ditcher sits on the beach, a cutting wheel 4 enters mud along with the sea cable, a water pump 11 pumps sea water through a water suction pipe 12, water is injected to the reamer type cutting wheel 4 through a front spray arm 10, the high-pressure water column washes the mud shoveled by the reamer type cutting wheel 4 into mud, the liquefied mud is sucked through a suction pipe 13 under the action of a dredging pump 14, and is discharged by a mud discharge pipe 15, the ditcher is driven by 2 crawler-type driving devices 3 which are in the direction along with the route, the continuous operation of the cutting wheel 4, the high-pressure flushing device and the mud discharge device can be carried by the cable along with the cable tray along with the sea cable, the mud is discharged along with the dredging pipe 15, and the mud is naturally pushed by the cable tray along with the cable, and the mud is discharged along with the cable bottom cable. And finishing the laying work of the ditching submarine cable.
The trencher for intertidal submarine cable laying shown above is a specific embodiment of the invention, has already shown the outstanding substantial characteristics and significant progress of the invention, and can be modified in terms of shape, structure, etc. according to the actual use needs, under the teaching of the invention, all within the scope of protection of the present solution.
Claims (10)
1. A trencher for use in the laying of a submarine cable in an intertidal zone, characterized by: including the cutting mechanism that is used for cutting the ditching, be used for the high-pressure punching device of flushing away mud, be used for sucking away the mud sediment device, main part supporting beam (1), be used for advancing on the mud flat crawler-type drive arrangement (3), be used for making the ditcher be in the buoyancy adjusting device of floating state in the deep water area, be used for carrying out removal drive's screw drive arrangement (2) and be used for bearing the cable carrying device of landing section submarine cable when the ditcher floats, crawler-type drive arrangement (3) connect in the left and right sides of main part supporting beam (1) symmetrically, cutting mechanism connect in the front side region of main part supporting beam (1) upper end, buoyancy adjusting device locate above main part supporting beam (1), screw drive arrangement (2) locate the left and right sides of buoyancy adjusting device symmetrically, the cable carrying device connect in the top surface centre of buoyancy adjusting device, high-pressure punching device and mud sediment device according to bilateral symmetry setting, the position that the mouth of a river and mud sediment device's suction opening of a river are all towards cutting mechanism, high-pressure punching device and mud device's mud sediment device are located behind mud sediment device's the side of a ditch sediment device.
2. A trencher for inter-tidal zone subsea cabling as claimed in claim 1, wherein: the cutting mechanism comprises a cutting wheel (4), a first mechanical arm (5), a second mechanical arm (6), a base (9), a first hydraulic driving rod (7) and a second hydraulic driving rod (8), wherein the base (9) is fixedly connected to the front side of the upper end of the main body supporting beam (1), the lower end of the second mechanical arm (6) is rotatably connected to the base (9), the second hydraulic driving rod (8) is fixedly connected between the base (9) and the middle lower portion of the second mechanical arm (6) and is rotatably connected with the base and the middle portion of the second mechanical arm (6), the first hydraulic driving rod (7) is connected to the upper end of the first mechanical arm (5) and the middle portion of the second mechanical arm (6) and is rotatably connected with the middle portion of the second mechanical arm, the upper end of the second mechanical arm (6) is rotatably connected with the upper portion of the first mechanical arm (5), and the cutting wheel (4) is rotatably connected to the lower end of the first mechanical arm (5).
3. A trencher for inter-tidal zone subsea cabling as claimed in claim 2, wherein: the high-pressure jetting device comprises a front jetting arm (10), a water pump (11) and a water suction pipe (12), wherein the water suction pipe (12) is downwards turned forward at the front side of the buoyancy adjusting device after passing through the top surface of the buoyancy adjusting device from the lower direction of the rear side of the main body supporting beam (1), the front jetting arm (10) is arranged at the front end of the water suction pipe (12), the front jetting arm (10) is obliquely oriented to the rear lower side of the cutting wheel (4), a jetting nozzle is arranged at the lower end of the front jetting arm, the water suction port is arranged at the rear lower end of the water suction pipe (12), and the water pump (11) is connected to the position of the water suction pipe (12) of the top surface of the buoyancy adjusting device so as to provide water suction and jetting power.
4. A trencher for inter-tidal zone subsea cabling as claimed in claim 3, wherein: the mud discharging device comprises a suction pipe (13), a dredging pump (14) and a mud discharging pipe (15), wherein the mud discharging pipe (15) is downwards turned forward at the front side of the buoyancy adjusting device after passing through the top surface of the buoyancy adjusting device from the lower direction of the rear side of the main body supporting beam (1), the suction pipe (13) is arranged at the front end of the mud discharging pipe (15), the suction pipe (13) is obliquely oriented to the rear lower side of the cutting wheel (4), the mud suction port is arranged at the lower end of the suction pipe (13), the mud nozzle is arranged at the rear lower end of the mud discharging pipe (15), and the dredging pump (14) is connected to the position of the mud discharging pipe (15) on the top surface of the buoyancy adjusting device to provide suction and mud discharging power.
5. A trencher for inter-tidal belt submarine cabling as claimed in claim 4, wherein: the buoyancy adjusting device comprises a buoyancy adjusting box (16) and a pressure adjusting pipe (17), wherein the buoyancy adjusting box (16) is fixedly connected to the top of the main body supporting beam (1), and the pressure adjusting pipe (17) is arranged on the left side or the right side of the bottom of the front end of the buoyancy adjusting box.
6. A trencher for inter-tidal belt subsea cabling as in claim 5, wherein: the cable carrying device comprises an electric cable drum (18) and a support (19), wherein the support (19) is fixedly connected to the middle area of the top surface of the buoyancy adjusting box (16), the electric cable drum (18) is rotatably connected to the top end of the support (19), and the axial direction of the electric cable drum (18) is left and right.
7. A trencher for inter-tidal belt submarine cabling as claimed in claim 6, wherein: the number of the propeller driving devices (2) is 4, the 4 propeller driving devices (2) are symmetrically arranged on the left side and the right side of the buoyancy adjusting box (16) according to 2 groups of 1, the 2 propeller driving devices (2) of each group are linearly arranged in front-back mode, and the axial direction of the propeller driving devices (2) is in front-back direction.
8. A trencher for inter-tidal belt submarine cabling as claimed in claim 7, wherein: the cutting wheel (4) adopts a reamer type cutting wheel (4), and the reamer blade is distributed on the wheel shaft of the cutting wheel (4).
9. A trencher for inter-tidal belt subsea cabling as in claim 8, wherein: the first mechanical arm (5) and the second mechanical arm (6) are formed by welding after being cut by steel plates.
10. A trencher for inter-tidal zone subsea cabling as in claim 9, wherein: the number of the second hydraulic driving rods (8) is 2, the second hydraulic driving rods are symmetrically connected to the left side and the right side of the second mechanical arm (6), the number of the first hydraulic driving rods (7) is 1, and the first hydraulic driving rods are connected to the symmetrical center positions of the second mechanical arm (6) and the first mechanical arm (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410925963.6A CN118997254A (en) | 2024-07-10 | 2024-07-10 | Ditcher for laying submarine cable in intertidal zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410925963.6A CN118997254A (en) | 2024-07-10 | 2024-07-10 | Ditcher for laying submarine cable in intertidal zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118997254A true CN118997254A (en) | 2024-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410925963.6A Pending CN118997254A (en) | 2024-07-10 | 2024-07-10 | Ditcher for laying submarine cable in intertidal zone |
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| CN (1) | CN118997254A (en) |
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|---|---|---|---|---|
| CN1184192A (en) * | 1996-11-29 | 1998-06-10 | 胜利石油管理局油建一公司 | Barged sled-type beach ditcher |
| CN102493514A (en) * | 2011-12-20 | 2012-06-13 | 山东大学 | Self-stirring type dredging device for river channels |
| CN110029696A (en) * | 2019-04-08 | 2019-07-19 | 国网浙江省电力有限公司舟山供电公司 | A kind of double work pattern submarine cable ditchers |
| EP3670759A1 (en) * | 2018-12-21 | 2020-06-24 | Jürgen Stehr | Device and method for laying cables and / or lines in the ground |
| CN113931246A (en) * | 2021-08-30 | 2022-01-14 | 中交疏浚技术装备国家工程研究中心有限公司 | Dredging robot and dredging system |
| US11466428B1 (en) * | 2021-12-22 | 2022-10-11 | Cciip Llc | Microtrench plug and method for securing an optical fiber and/or microduct/innerduct in a microtrench |
-
2024
- 2024-07-10 CN CN202410925963.6A patent/CN118997254A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184192A (en) * | 1996-11-29 | 1998-06-10 | 胜利石油管理局油建一公司 | Barged sled-type beach ditcher |
| CN102493514A (en) * | 2011-12-20 | 2012-06-13 | 山东大学 | Self-stirring type dredging device for river channels |
| EP3670759A1 (en) * | 2018-12-21 | 2020-06-24 | Jürgen Stehr | Device and method for laying cables and / or lines in the ground |
| CN110029696A (en) * | 2019-04-08 | 2019-07-19 | 国网浙江省电力有限公司舟山供电公司 | A kind of double work pattern submarine cable ditchers |
| CN113931246A (en) * | 2021-08-30 | 2022-01-14 | 中交疏浚技术装备国家工程研究中心有限公司 | Dredging robot and dredging system |
| US11466428B1 (en) * | 2021-12-22 | 2022-10-11 | Cciip Llc | Microtrench plug and method for securing an optical fiber and/or microduct/innerduct in a microtrench |
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