CN109183873B - Three-cable positioning system on cutter suction dredger - Google Patents
Three-cable positioning system on cutter suction dredger Download PDFInfo
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- CN109183873B CN109183873B CN201811264071.7A CN201811264071A CN109183873B CN 109183873 B CN109183873 B CN 109183873B CN 201811264071 A CN201811264071 A CN 201811264071A CN 109183873 B CN109183873 B CN 109183873B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 107
- 239000010959 steel Substances 0.000 claims abstract description 107
- 238000004804 winding Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 5
- 210000000078 claw Anatomy 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008439 repair process Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
- E02F3/8833—Floating installations
- E02F3/885—Floating installations self propelled, e.g. ship
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Ocean & Marine Engineering (AREA)
- Earth Drilling (AREA)
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Abstract
The invention discloses a three-cable positioning system on a cutter suction dredger, which comprises: the device comprises a three-cable barrel structure, a first anchor winch, a second anchor winch, a third anchor winch, a first positioning guide pulley, a second positioning guide pulley, a third positioning guide pulley, a barrel lifting guide pulley, a first positioning steel wire rope, a second positioning steel wire rope, a third positioning steel wire rope, a fourth positioning steel wire rope, a first positioning anchor, a second positioning anchor and a third positioning anchor; the three cable barrel structure includes: the device comprises a vertical sliding cavity, a barrel sliding rail, a barrel, a pulley seat, a barrel lifting pulley, a locking steel pin and a barrel lower fixing seat; the lower end of the cylinder lower fixing seat is also connected with a poking plate structure, and the poking plate structure is arranged to be a curved line type with angles on two side surfaces. The invention not only can realize the free switching of engineering ships or devices between sailing and construction states, but also is convenient for maintenance at any time.
Description
Technical Field
The invention relates to engineering ships, in particular to a three-cable positioning system on a cutter suction dredger.
Background
The cutter suction dredger is characterized in that soil at the river bottom or the sea bottom is loosened by using a rotating reamer, the soil and cement are mixed into slurry, and the slurry is sucked into a pump body through a suction pipe and is conveyed to a mud discharging area through a mud discharging pipe. When the cutter suction dredger is used for construction, dredging, conveying and unloading are integrated, the cutter suction dredger is completed, and production efficiency is high. The device is suitable for dredging inland and lake areas with small wind and waves and low flow velocity and along sea ports, has proper soil properties such as sand, sandy loam, silt and the like, can excavate clay after adopting a toothed reamer, and has lower work efficiency.
In the existing cutter suction dredger, such as a 'Tianwhale' self-propelled cutter suction dredger, the operation capacity, the installed power and the dredging capacity of the cutter suction dredger are all equal to those of the world, the dredging positioning system arranged on the 'Tianwhale' mainly adopts a steel pile positioning device, the set of positioning device is mature and stable, and the cutter suction dredger is arranged on all cutter suction dredgers. The main function of the steel pile positioning device is that when the dredger is used for construction, an automatic control system sends out an instruction to vertically insert the steel pile into the seabed of the construction sea area, and a certain depth is kept, so that the steel pile positioning device is used for fixing the position of the dredger and providing a stable state for the subsequent continuous dredging operation. Meanwhile, the ship can rotate around the steel piles for construction operation, and the ship can alternately walk back and forth for construction operation through the main steel piles and the auxiliary steel piles. And after the construction task is finished, the positioning steel pile and the bridge frame are retracted, and the ship can immediately enter a sailing state.
Although the steel pile positioning device has good effect and more advantages, certain requirements are required on the geographical condition and the climatic sea condition of the working sea area in the use process, for example, when the steel pile is subjected to larger stress and is easy to damage or break during construction operation in the sea area with larger stormy waves (under the sea condition), or the steel pile can not successfully strike the sea bed due to the operation in the sea area with harder seabed because of the working requirement, so that the steel pile is subjected to stress damage. In order to continue to carry out construction operation according to the planning requirements under the two conditions, and simultaneously to protect the steel pile, the three-cable positioning system is inoculated and used in cooperation with the steel pile positioning system.
However, when the dredger needs to be converted from a working state to a sailing state, or when the three-cable barrel structure in the three-cable positioning system needs to be lifted from a ship body opening for maintenance, if the angle positions of the two positioning rope pulleys in the stern direction are just within the projection range of the lower barrel fixing seat, the two positioning rope pulleys in the stern direction can be in collision interference with the lower barrel fixing seat in the process that the three-cable barrel structure is lifted upwards, and the three-cable barrel structure is blocked, so that the three-cable barrel structure cannot be normally lifted to a designed height, or the ship body cannot be completely lifted for maintenance.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a three-cable positioning system on a cutter suction dredger, which not only can realize free switching of engineering ships or devices between sailing and construction states, but also is convenient to maintain at any time.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a three-cable positioning system on a cutter suction dredger, comprising: the device comprises a three-cable barrel structure, a first anchor winch, a second anchor winch, a third anchor winch, a first positioning guide pulley, a second positioning guide pulley, a third positioning guide pulley, a barrel lifting guide pulley, a first positioning steel wire rope, a second positioning steel wire rope, a third positioning steel wire rope, a fourth positioning steel wire rope, a first positioning anchor, a second positioning anchor and a third positioning anchor;
the three cable barrel structure includes:
the vertical sliding cavity is arranged on the ship body;
the cylinder sliding rail is arranged on the inner wall of the vertical sliding cavity;
the cylinder is arranged in the vertical sliding cavity and is of a hollow design;
the pulley seat is arranged at the bottom of the cylinder body, and is respectively provided with a first positioning rope outlet pulley, a second positioning rope outlet pulley and a third positioning rope outlet pulley;
the cylinder lifting pulleys are symmetrically arranged on the outer side of the cylinder and connected with the fourth positioning steel wire rope, so that the cylinder moves along the cylinder sliding track, and a perforation is formed in the position of the cylinder corresponding to the cylinder lifting pulleys;
the locking steel pin is provided with a pair of locking steel pins, is arranged on the outer side of the lower end of the cylinder body and is positioned above the pulley seat;
the cylinder lower fixing seat is arranged at the lower end in the vertical sliding cavity and is matched with the locking steel pin for use, so that the cylinder is positioned when moving downwards along the cylinder sliding track;
the steel straight ladder is arranged on the inner wall of the vertical sliding cavity and is positioned below the steel cable joint;
one end of the first positioning steel wire rope is connected with the first anchor winch, and the other end of the first positioning steel wire rope is wound on the first positioning guide pulley, penetrates through the cylinder body, is wound on the first positioning rope outlet pulley and is connected with the first positioning anchor;
one end of the second positioning steel wire rope is connected with the second anchor winch, and the other end of the second positioning steel wire rope is wound on the second positioning guide pulley, penetrates through the cylinder body, is wound on the second positioning rope outlet pulley and is connected with the second positioning anchor;
one end of the third positioning steel wire rope is connected with the third anchor winch, and the other end of the third positioning steel wire rope is wound on the third positioning guide pulley, penetrates through the cylinder body, is wound on the third positioning rope outlet pulley and is connected with the third positioning anchor;
one end of the fourth positioning steel wire rope is connected with the third anchor winch, and the other end of the fourth positioning steel wire rope sequentially winds around the cylinder lifting guide pulley, one cylinder lifting pulley, penetrates through the perforation and is then connected with the other cylinder lifting pulley to be fixedly connected with the steel cable joint;
the lower end of the lower fixing seat of the cylinder is also connected with a poking plate structure, and the poking plate structure is arranged in a curved line shape with angles on two side surfaces and is positioned between the second positioning rope outlet pulley and the third positioning rope outlet pulley on the pulley seat.
The first anchor winch and the second anchor winch are anchor winches without auxiliary winding drums.
The third anchor winch is an anchor winch with a secondary winding drum.
And a claw roller is wound on a fourth positioning steel wire rope between the third anchor winch and the barrel lifting guide pulley.
The first positioning rope outlet pulley, the second positioning rope outlet pulley and the third positioning rope outlet pulley on the pulley seat are equally distributed according to an angle of 120 degrees.
The cylinder body lower fixing seat on be equipped with two trompil staple bolts, two trompil staple bolts use with locking steel pin cooperation.
The poking plate structure is made of phi 50mm round steel and 30mm thick marine steel plates.
The first positioning steel wire rope, the second positioning steel wire rope and the third positioning steel wire rope are all three-cable type steel wire ropes.
In the technical scheme, the three-cable positioning system for the cutter suction dredger provided by the invention has the following beneficial effects:
1) The three-cable positioning system is combined with the steel pile positioning device, so that the cutter suction dredger is suitable for geographic conditions and climatic sea conditions of different working sea areas;
2) The three-cable positioning system has the advantages of relatively simple structural form, easy production and processing and lower cost;
3) The three-cable positioning system realizes free and convenient conversion of navigation and construction states of the cutter suction dredger, and is also convenient to repair and maintain.
Drawings
FIG. 1 is an overall layout of a three-cable positioning system of the present invention;
FIG. 2 is a schematic diagram of the connection of the first and second anchor winches with the first and second positioning guide pulleys in the three-cable positioning system of the present invention;
FIG. 3 is a schematic illustration of the connection of a third anchor winch to a third positioning guide pulley and a barrel lifting guide pulley in the three-cable positioning system of the present invention;
FIG. 4 is a schematic view of a three-cable barrel structure in an operational state in a three-cable positioning system of the present invention;
FIG. 5 is a schematic illustration of a three-cable barrel structure in a sailing state in a three-cable positioning system of the present invention;
FIG. 6 is a schematic view of the three cable drum structure A-A of FIG. 5;
FIG. 7 is a schematic view of the three-cable barrel structure B of FIG. 4;
FIG. 8 is a schematic view of the three-cable barrel structure C of FIG. 4;
FIG. 9 is a schematic view of the three cable drum structure F-F of FIG. 4;
FIG. 10 is a schematic view of the lower mounting seat F-1 of the cartridge of FIG. 9;
FIG. 11 is an enlarged schematic view of a portion of the three-cable drum structure H of FIG. 4;
FIG. 12 is a top view of the lower mounting bracket of the cartridge in the D-D direction of FIG. 11;
FIG. 13 is a schematic view of the relationship between the lower fixing seat of the cylinder in the direction D-D in FIG. 11 and three positioning rope pulleys;
FIG. 14 is a schematic view of the relationship between the lower fixing seat of the cylinder in the direction D-D in FIG. 11 and the three positioning rope pulleys II;
FIG. 15 is a schematic view of the relationship between the lower fixing seat of the cylinder in the direction D-D in FIG. 11 and three positioning rope pulleys;
FIG. 16 is a schematic view of the structure of the I-direction dial in FIG. 11;
fig. 17 is a top view of the D-D direction dial structure of fig. 11.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 3, the three-cable positioning system for cutter suction dredger provided by the present invention includes: three cable drum structures, first anchor winch 1, second anchor winch 2, third anchor winch 3, first location guide pulley 4, second location guide pulley 5, third location guide pulley 6, drum promotes guide pulley 7, first location wire rope 8, second location wire rope 9, third location wire rope 10, fourth location wire rope 11, first location anchor, second location anchor and third location anchor.
Preferably, the three-cable barrel structure comprises:
the vertical sliding cavity 12 is arranged on the upper deck of the ship body and penetrates through the upper deck of the ship body to the bottom outer plate;
the cylinder sliding rail 13 is arranged on the inner wall of the vertical sliding cavity 12;
the cylinder 14 is arranged in the vertical sliding cavity 12, and the cylinder 14 is arranged in a hollow manner;
the pulley seat 15 is arranged at the bottom of the cylinder 14, and a first positioning rope outlet pulley 16, a second positioning rope outlet pulley 17 and a third positioning rope outlet pulley 18 are respectively arranged on the pulley seat 15;
the cylinder lifting pulley 19 is provided with a pair of cylinder lifting pulleys, is symmetrically arranged on the outer side of the cylinder 14 and is connected with the fourth positioning steel wire rope 11, so that the cylinder 14 moves up and down along the cylinder sliding track 13, and a perforation 26 is formed at the position of the cylinder 14 corresponding to the cylinder lifting pulley 19 for the fourth positioning steel wire rope 11 to pass through;
a locking steel pin 20 having a pair, provided outside the lower end of the cylinder 14 and above the pulley seat 15;
the cylinder lower fixing seat 22 is arranged at the lower end in the vertical sliding cavity 12 and is matched with the locking steel pin 20 for use so as to lock and position the cylinder 14 when the cylinder moves downwards along the cylinder sliding track 13;
preferably, a steel straight ladder 27 and a steel cable joint 28 are arranged in the vertical sliding cavity 12, the steel cable joint 28 is arranged on the inner wall of the top position of the vertical sliding cavity 12, the distance between the steel straight ladder 27 and an upper deck is about 250mm, the steel straight ladder 27 is arranged on the inner wall of the vertical sliding cavity 12 and below the steel cable joint 27, and workers can conveniently enter the vertical sliding cavity 12 to carry out maintenance and repair operations;
preferably, one end of the first positioning steel wire rope 8 is connected with the first anchor winch 1, the other end of the first positioning steel wire rope 8 is wound on the first positioning guide pulley 4, penetrates through the hollow structure in the cylinder 14, is wound on the first positioning rope outlet pulley 16, and is finally connected with the first positioning anchor;
preferably, one end of the second positioning steel wire rope 9 is connected with the second anchor winch 2, the other end of the second positioning steel wire rope 9 is wound on the second positioning guide pulley 5 and penetrates through the hollow structure in the cylinder 14, then is wound on the second positioning rope outlet pulley 17, and finally is connected with the second positioning anchor;
preferably, one end of the third positioning wire rope 10 is connected with the third anchor winch 3, the other end of the third positioning wire rope 10 is wound on the third positioning guide pulley 6 and passes through the hollow structure in the cylinder 14, is wound on the third positioning rope outlet pulley 18, and is finally connected with the third positioning anchor;
preferably, one end of the fourth positioning wire rope 11 is connected with the third anchor winch 3, and the other end of the fourth positioning wire rope 11 is sequentially wound on the cylinder lifting guide pulley 7 and one cylinder lifting pulley 19 on one side of the cylinder 14, passes through the perforation 26, is wound on the other cylinder lifting pulley 19 on the other side of the cylinder 14, and is finally fixedly connected with the steel cable section 28;
preferably, the lower end of the lower cylinder fixing seat 22 is further connected with a shifting plate structure 23, and the shifting plate structure 23 is arranged in a curved line shape with angles on two side surfaces and is positioned between the second positioning rope pulley 17 and the third positioning rope pulley 18 on the pulley seat 15.
Preferably, the first anchor winch 1 and the second anchor winch 2 are anchor winches without auxiliary winding drums.
Preferably, the third anchor winch 3 is an anchor winch with a secondary winding drum.
Preferably, a plurality of claw rollers 24 are wound on the fourth positioning steel wire rope 11 between the third anchor winch 3 and the cylinder lifting guide pulley 7.
Preferably, the first positioning rope outlet pulley 16, the second positioning rope outlet pulley 17 and the third positioning rope outlet pulley 18 on the pulley seat 15 are equally distributed according to an angle of 120 degrees.
Preferably, the lower cylinder fixing seat 22 is provided with two hole hoops 25, and the pair of locking steel pins 20 are correspondingly inserted into the two hole hoops 25, so that the cylinder 14 is locked and positioned when moving downwards along the cylinder sliding rail 13.
Preferably, the poking plate structure 23 is made of phi 50mm round steel and 30mm thick steel plates for ships.
Preferably, the first positioning steel wire rope 8, the second positioning steel wire rope 9 and the third positioning steel wire rope 10 are all three-cable type steel wire ropes.
As shown in fig. 4 to 10, when the cutter-suction dredger is ready to enter into a working state, the third anchor winch 3 with the auxiliary reel controls the fourth positioning steel wire rope 11 to drop the cylinder 14 to reach the cylinder lower fixing seat 22 welded at the lower end in the vertical sliding cavity 12, the cylinder 14 is locked and fixed by the cylinder lower fixing seat 22 (two locking steel pins 20 are arranged on the cylinder 14, two hole anchor bolts 25 are arranged on the cylinder lower fixing seat 22, when the cylinder 14 slides down to the cylinder lower fixing seat 22 along the cylinder sliding track 13, the two locking steel pins 20 smoothly enter into the two hole anchor bolts 25, the cylinder 14 is fixed and cannot slide down continuously), the first anchor winch 1, the second anchor winch 2 and the third anchor winch 3 drop the first positioning steel wire rope 8, the second positioning steel wire rope 9 and the third positioning steel wire rope 10, and corresponding first positioning anchors, second positioning anchors and third positioning anchors are thrown out (at this time, three positioning anchors are in relative free states, respectively sinking in the throwing directions), and after the corresponding third positioning anchors are thrown, the second positioning steel wire rope 8, the third positioning winch 3 and the third positioning steel wire rope 3 can be controlled to be pulled down, and the second positioning winch 2 can realize the dredging of the positions.
The first positioning rope outlet pulley 16, the second positioning rope outlet pulley 17 and the third positioning rope outlet pulley 18 are arranged on the pulley seat 15 according to an angle of 120 degrees, the first positioning rope outlet pulley 16, the second positioning rope outlet pulley 17 and the third positioning rope outlet pulley 18 can freely rotate independently along with the positioning anchors connected with each other within the respective angle range of 120 degrees, and the final angle positions of the three positioning rope outlet pulleys are determined by the positions of the positioning anchors corresponding to the positioning rope outlet pulleys after sinking. The three positioning rope pulleys are designed and installed at the lowest end of the cylinder 14, and the height values of the three positioning rope pulleys from a dredger base line (as marked by B.L in fig. 4) are lower than the height of the cylinder lower fixing seat 22, namely the three positioning rope pulleys are always positioned at the lower end of the cylinder lower fixing seat 22 in both the sailing state and the dredging working state of the dredger.
When the dredger is in a dredge working state, along with the whole lowering of the three-cable barrel structure, at the moment, the three positioning rope pulleys extend out of the lower part of the bottom plate of the dredger body, and the angle of the three positioning rope pulleys under water is determined by the position of the positioning anchor connected with the corresponding positioning steel wire rope after sinking.
When the cutter suction dredger is ready to enter a sailing state, the third anchor winch 3 with the auxiliary winding drum controls the fourth positioning steel wire rope 11 to lift the cylinder 14 upwards by about 1200mm (the center distances of the first positioning guide pulley 4, the second positioning guide pulley 5 and the second positioning guide pulley 6 which are arranged at the top of the cylinder 14 in the sailing state are 2730mm from the upper deck, and the center distances of the first positioning guide pulley 4, the second positioning guide pulley 5 and the second positioning guide pulley 6 which are arranged at the top of the cylinder 14 in the working state are 1530mm from the upper deck), the other first anchor winch 1, the second anchor winch 2 and the third anchor winch 3 also recover corresponding positioning anchors at the same time, and when the three positioning rope pulleys and the three positioning anchors are lifted and recovered into the vertical sliding cavity 12, the water resistance when the dredger sails is effectively reduced.
As shown in fig. 11, a part of the swing range of two positioning rope pulleys close to the stern direction in the three positioning rope pulleys coincides with the projection of the lower cylinder fixing seat 22, because the three positioning rope pulleys are positioned at the lower end of the lower cylinder fixing seat 22, when the dredger needs to be converted from a working state to a sailing state or the whole three-cable cylinder structure needs to be lifted upwards from the ship body for maintenance, if the angle of the two positioning rope pulleys close to the stern direction is just within the projection range of the point of the lower cylinder fixing seat 22, in the process that the three-cable cylinder structure is lifted upwards, the two positioning rope pulleys close to the stern direction can be in collision interference with the lower cylinder fixing seat 22 and are blocked, so that the three-cable cylinder structure cannot be lifted to the designed height normally or the ship body cannot be lifted thoroughly for maintenance. Therefore, the pulling plate structure 23 is installed and welded at the lower end of the cylinder lower fixing seat 22, meanwhile, the pulling plate structure 23 is positioned between the two positioning rope-out pulleys in the stern direction, when the cylinder 14 is lifted upwards, the two positioning rope-out pulleys in the stern are pushed by the pulling plate structure 23 to rotate towards the bow direction to an angle capable of safely avoiding the cylinder lower fixing seat 22, and the cylinder 14 can be lifted freely or lowered by 1200mm, or the cylinder 14 is lifted out of the ship body to repair and replace the pulleys.
As shown in fig. 12, the clearance between the arc sealing plate near the bow end of the lower cylinder fixing seat 22 and the cylinder 14 is only 10mm, so that the cylinder 14 and the lower cylinder fixing seat 22 are only ensured not to interfere with each other by friction.
As shown in fig. 13 to 14, the first positioning rope pulley 16, the second positioning rope pulley 17 and the third positioning rope pulley 18 are arranged on the pulley seat 15 at an angle of 120 °, the first positioning rope pulley 16, the second positioning rope pulley 17 and the third positioning rope pulley 18 rotate within respective angles of 120 °, the second positioning rope pulley 17 and the third positioning rope pulley 18 are very easy to collide and interfere with the cylinder lower fixing seat 22 within the rotation range, even if the second positioning rope pulley 17 has avoided the cylinder lower fixing seat 22 and the third positioning rope pulley 18 collides and interferes with the cylinder lower fixing seat 22, the cylinder 14 cannot be lifted normally, and the first positioning rope pulley 16 does not collide and interfere with the cylinder lower fixing seat 22.
Only when the second positioning rope pulley 17 and the third positioning rope pulley 18 are simultaneously positioned at such an angle as shown in fig. 15 or slightly larger than such an angle (the positioning rope pulley rotates 120 ° from the tail limit position to the bow direction), the cylinder 14 and all positioning rope pulleys can completely avoid the cylinder lower fixing seat 22, and the normal lifting and lowering functions of the cylinder 14 are realized, so that the free conversion of the dredger navigation state and the working state can be satisfied.
As shown in fig. 16 to 17, in the design of the pulling plate line of the pulling plate structure 23, first, by understanding the working principle of the three-cable positioning system, the rotation track of the two positioning rope pulleys 17 and 18 near the tail and the minimum angle required for avoiding the lower fixing seat 22 of the barrel are simulated, and the pulling plate line is simulated according to the rotation track.
For the angle design of the shifting plate structure 23, the friction force between the two positioning rope pulleys 17 and 18 and the pulley seat 15 is measured, and the thrust and the pressure generated by the shifting plate structure 23 on the two positioning rope pulleys 17 and 18 are measured; the pushing forces generated by the two sides of the shifting plate structure 23 on the two positioning rope-out pulleys 17 and 18 respectively promote the two positioning rope-out pulleys 17 and 18 to rotate towards the bow direction simultaneously in the lifting process; the pressure generated by the pulling plate structure 23 on the two positioning rope pulleys 17 and 18 increases the friction force between the two positioning rope pulleys 17 and 18 and the pulley seat 15, so that the thrust generated by all points on the two sides of the pulling plate structure 23 on the two positioning rope pulleys 17 and 18 is required to be greater than the sum of the friction force and the water resistance of the two positioning rope pulleys 17 and 18 according to the mechanical principle analysis.
For the linear fairing of the shifting plate structure 23, according to the motion track and the required angle of the two positioning rope pulleys 17 and 18, which are lifted and rotated to avoid the lower fixed seat 22 of the cylinder, and the angle design of the two side surfaces of the shifting plate structure 23, a plurality of space points are selected in the motion track range of the two positioning rope pulleys 17 and 18 and are connected into a space curve, so that a space curved surface is formed, and then the curved surface fairing is carried out on the curved surface of the shifting plate structure 23 by utilizing the ship body three-way fairing principle.
The shifting plate structure 23 can simultaneously push the two positioning rope pulleys close to the stern direction to rotate to the bow direction to an angle capable of safely avoiding the lower fixing seat 22 of the barrel, and finally the use function of the three-cable positioning system is met.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments are intended to fall within the scope of the claims of the invention as long as they fall within the true spirit of the invention.
Claims (8)
1. A three-cable positioning system on a cutter suction dredger, comprising: the device comprises a three-cable barrel structure, a first anchor winch, a second anchor winch, a third anchor winch, a first positioning guide pulley, a second positioning guide pulley, a third positioning guide pulley, a barrel lifting guide pulley, a first positioning steel wire rope, a second positioning steel wire rope, a third positioning steel wire rope, a fourth positioning steel wire rope, a first positioning anchor, a second positioning anchor and a third positioning anchor;
the three cable barrel structure includes:
the vertical sliding cavity is arranged on the ship body;
the cylinder sliding rail is arranged on the inner wall of the vertical sliding cavity;
the cylinder is arranged in the vertical sliding cavity and is of a hollow design;
the pulley seat is arranged at the bottom of the cylinder body, and is respectively provided with a first positioning rope outlet pulley, a second positioning rope outlet pulley and a third positioning rope outlet pulley;
the cylinder lifting pulleys are symmetrically arranged on the outer side of the cylinder and connected with the fourth positioning steel wire rope, so that the cylinder moves along the cylinder sliding track, and a perforation is formed in the position of the cylinder corresponding to the cylinder lifting pulleys;
the locking steel pin is provided with a pair of locking steel pins, is arranged on the outer side of the lower end of the cylinder body and is positioned above the pulley seat;
the cylinder lower fixing seat is arranged at the lower end in the vertical sliding cavity and is matched with the locking steel pin for use, so that the cylinder is positioned when moving downwards along the cylinder sliding track;
the steel straight ladder is arranged on the inner wall of the vertical sliding cavity and is positioned below the steel cable joint;
one end of the first positioning steel wire rope is connected with the first anchor winch, and the other end of the first positioning steel wire rope is wound on the first positioning guide pulley, penetrates through the cylinder body, is wound on the first positioning rope outlet pulley and is connected with the first positioning anchor;
one end of the second positioning steel wire rope is connected with the second anchor winch, and the other end of the second positioning steel wire rope is wound on the second positioning guide pulley, penetrates through the cylinder body, is wound on the second positioning rope outlet pulley and is connected with the second positioning anchor;
one end of the third positioning steel wire rope is connected with the third anchor winch, and the other end of the third positioning steel wire rope is wound on the third positioning guide pulley, penetrates through the cylinder body, is wound on the third positioning rope outlet pulley and is connected with the third positioning anchor;
one end of the fourth positioning steel wire rope is connected with the third anchor winch, and the other end of the fourth positioning steel wire rope sequentially winds around the cylinder lifting guide pulley, one cylinder lifting pulley, penetrates through the perforation and is then connected with the other cylinder lifting pulley to be fixedly connected with the steel cable joint;
the lower end of the lower fixing seat of the cylinder is also connected with a poking plate structure, and the poking plate structure is arranged in a curved line shape with angles on two side surfaces and is positioned between the second positioning rope outlet pulley and the third positioning rope outlet pulley on the pulley seat.
2. A three-cable positioning system on a cutter suction dredger as defined in claim 1, wherein: the first anchor winch and the second anchor winch are anchor winches without auxiliary winding drums.
3. A three-cable positioning system on a cutter suction dredger as defined in claim 1, wherein: the third anchor winch is an anchor winch with a secondary winding drum.
4. A three-cable positioning system on a cutter suction dredger as defined in claim 3, wherein: and a claw roller is wound on a fourth positioning steel wire rope between the third anchor winch and the barrel lifting guide pulley.
5. A three-cable positioning system on a cutter suction dredger as defined in claim 1, wherein: the first positioning rope outlet pulley, the second positioning rope outlet pulley and the third positioning rope outlet pulley on the pulley seat are equally distributed according to an angle of 120 degrees.
6. A three-cable positioning system on a cutter suction dredger as defined in claim 1, wherein: the cylinder body lower fixing seat on be equipped with two trompil staple bolts, two trompil staple bolts use with locking steel pin cooperation.
7. A three-cable positioning system on a cutter suction dredger as defined in claim 1, wherein: the poking plate structure is made of phi 50mm round steel and 30mm thick marine steel plates.
8. A three-cable positioning system on a cutter suction dredger as defined in claim 1, wherein: the first positioning steel wire rope, the second positioning steel wire rope and the third positioning steel wire rope are all three-cable type steel wire ropes.
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| CN201811264071.7A CN109183873B (en) | 2018-10-29 | 2018-10-29 | Three-cable positioning system on cutter suction dredger |
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| CN201811264071.7A CN109183873B (en) | 2018-10-29 | 2018-10-29 | Three-cable positioning system on cutter suction dredger |
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| CN109183873B true CN109183873B (en) | 2023-11-07 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB225683A (en) * | 1923-10-27 | 1924-12-11 | Arthur Wells Robinson | Improvements relating to dipper dredges or excavators |
| CN201296941Y (en) * | 2008-09-27 | 2009-08-26 | 中交天津港航勘察设计研究院有限公司 | Cutter-suction dredger single-steel-pile trolley and three-cable combination positioning system |
| CN105908793A (en) * | 2016-04-14 | 2016-08-31 | 意宁液压股份有限公司 | Dredger gauge pile throwing device enabling free fall |
| CN107458541A (en) * | 2017-07-06 | 2017-12-12 | 中国船舶工业集团公司第七0八研究所 | A kind of built-in alignment system applied to engineering ship |
| CN207889939U (en) * | 2018-03-01 | 2018-09-21 | 中国船舶工业集团公司第七0八研究所 | A kind of removable tube structure of three way ropes position system applied to engineering ship |
| CN207889938U (en) * | 2018-02-28 | 2018-09-21 | 中国船舶工业集团公司第七0八研究所 | The upper fixing device of novel three cables positioning cylinder |
| CN209162919U (en) * | 2018-10-29 | 2019-07-26 | 中交天津航道局有限公司 | A kind of three way ropes position system on cutter suction dredger |
-
2018
- 2018-10-29 CN CN201811264071.7A patent/CN109183873B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB225683A (en) * | 1923-10-27 | 1924-12-11 | Arthur Wells Robinson | Improvements relating to dipper dredges or excavators |
| CN201296941Y (en) * | 2008-09-27 | 2009-08-26 | 中交天津港航勘察设计研究院有限公司 | Cutter-suction dredger single-steel-pile trolley and three-cable combination positioning system |
| CN105908793A (en) * | 2016-04-14 | 2016-08-31 | 意宁液压股份有限公司 | Dredger gauge pile throwing device enabling free fall |
| CN107458541A (en) * | 2017-07-06 | 2017-12-12 | 中国船舶工业集团公司第七0八研究所 | A kind of built-in alignment system applied to engineering ship |
| CN207889938U (en) * | 2018-02-28 | 2018-09-21 | 中国船舶工业集团公司第七0八研究所 | The upper fixing device of novel three cables positioning cylinder |
| CN207889939U (en) * | 2018-03-01 | 2018-09-21 | 中国船舶工业集团公司第七0八研究所 | A kind of removable tube structure of three way ropes position system applied to engineering ship |
| CN209162919U (en) * | 2018-10-29 | 2019-07-26 | 中交天津航道局有限公司 | A kind of three way ropes position system on cutter suction dredger |
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| CN109183873A (en) | 2019-01-11 |
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