Pipe laying peculiar to vessel, paving cable stretcher
Technical field
The utility model relates to stretcher, relates in particular to a kind of for pipe laying peculiar to vessel, paving cable stretcher.Belong to Offshore Engineering field.
Background technique
Stretcher is the key equipment of ocean pipe laying, the operation of paving cable, and it is responsible for a pipeline, cable is routed to seabed from stern, and requires pipeline, cable to have constant-tension in the process of plunging into the commercial sea.
Existing stretcher comprises: a frame mechanism, be connected on frame mechanism for clamping upper and lower track drive assembly that pipeline cooperatively interacts, for controlling crawler belt clamp device that upper track rail assembly moves up and down and for the chassis of elevator mechanism and crawler belt clamp device is installed.
Existing stretcher existing problems are as follows:
(1) because track drive assembly under existing stretcher is fixed, can not regulate the center height of pipeline, and, due to crawler belt clamp device adopt be bilateral clamping arrangement, its jointing can affect entering of pipeline and depart from stretcher, like this, not only limit the using scope of stretcher, and, in operation process, the turnover of inconvenient pipeline; Meanwhile, when laying flexible pipe operation, crane gear also cannot its cooperating;
(2) in the time that reality is used, because pipeline installation is divided into rigid line and flexible pipe line, in the time laying rigid line, require pipeline and sea level to have a certain degree, be called immersion angle.In order not affect the immersion angle of pipeline, in the time that stretcher is installed, guarantee that mounting point is constant.And in existing stretcher structure, due to clamping tube up and down, can not carry out angular adjustment to pipe; Therefore, can only complete the adjustment to crawler belt angle with the base at certain inclination angle by welding on boat deck; Like this, will certainly make the using scope on ship more nervous.
Model utility content
Main purpose of the present utility model is to overcome the above-mentioned shortcoming that prior art exists, and a kind of pipe laying peculiar to vessel, paving cable stretcher are provided, and it not only can facilitate pipeline turnover, and, can also guarantee that pipeline is stressed even all the time, prevent that pipeline is impaired; Meanwhile, adjust the immersion angle of pipeline and the center height of pipeline according to actual requirement, to adapt to different working condition requirements.
The purpose of this utility model is realized by following technological scheme:
A kind of pipe laying peculiar to vessel, paving cable stretcher, comprise: a frame mechanism, be connected on frame mechanism for clamping upper and lower track drive assembly that pipeline cooperatively interacts, for controlling crawler belt clamp device that upper track rail assembly moves up and down, chassis for installation frame mechanism and crawler belt clamp device, it is characterized in that: one end of this frame mechanism is connected with ship stern lowering or hoisting gear, the other end of frame mechanism is connected with stem lowering or hoisting gear, and this ship stern lowering or hoisting gear and stem lowering or hoisting gear are separately fixed on chassis; The both sides of frame mechanism are respectively equipped with stem and ship stern pipeline guiding device, and this stem pipeline guiding device and ship stern pipeline guiding device are fixed on chassis.
Between described stem pipeline guiding device and ship stern pipeline guiding device and upper and lower track drive assembly three, form straight line, when pipeline being entered and leaving upper and lower track drive assembly, locate all the time point-blank.
The upper end of described stem pipeline guiding device is provided with a range unit that tests the speed for measurement line laying length; This range unit that tests the speed comprises: a support below lifting frame of a lifting frame, movable set, be arranged on the roller of lifting frame bottom, wherein, this roller is arranged in a roller frame, this roller frame is connected with lifting frame, one end of roller frame is provided with an encoder, and this encoder is connected with computer.
Described ship stern, stem pipeline guiding device comprise: a guide frame, be arranged on two upper saw pulleys on guide frame, wherein, two upper saw pulleys are oppositely arranged, and midfeather one setpoint distance, in order to pipeline by time lead.
Described stem, ship stern lowering or hoisting gear comprise: two lifts that are oppositely arranged, be arranged on the motor reducer on stem, ship stern lift fitting seat, wherein, one end of motor reducer is connected with drive motor, and the motor reducer the other end is connected with two lifts respectively by coupling; And two lifts are separately fixed on stem, ship stern lift fitting seat, stem, ship stern lift fitting seat are separately fixed on fixed base separately, fixed base is fixed on again on chassis, and by adjusting lift adjustable height, adjustment pipeline is high and immersion angle at stretcher Zhong center.
Between described stem, ship stern lift fitting seat, a pull bar is installed.
The beneficial effects of the utility model: the utility model is owing to adopting technique scheme, and it not only can facilitate pipeline turnover, and, can also guarantee that pipeline is stressed even all the time, prevent that pipeline is impaired; Meanwhile, adjust the immersion angle of pipeline and the center height of pipeline according to actual requirement, to adapt to different working condition requirements.
Accompanying drawing explanation:
Figure 1A is that the utility model overall structure master looks schematic diagram.
Figure 1B is the utility model overall structure schematic perspective view.
Fig. 2 is the utility model range unit structural representation that tests the speed.
Fig. 3 is the utility model stem, ship stern pipeline guiding device structural representation.
Fig. 4 is the utility model ship stern lifting device structure schematic diagram.
Major label description in figure:
1. control cabinet, 2. go up track drive assembly, 3. range unit tests the speed, 4. ship stern pipeline guiding device, 5. ship stern lowering or hoisting gear, 6. frame mechanism, 7. descend track drive assembly, 8. crawler belt clamp device, 9. fitting seat, 10. chassis, 11. bearing pins, 12. stem lowering or hoisting gears, 13. stem pipeline guiding devices, 311. lifting frame, 312. support, 313. roller, 314. encoder, 411. upper saw pulley, 412. guide frame, 511. stem lifts, 512. coupling, 513. motor reducer, 514. coupling, 515. ship stern lift fitting seats, 516. pull bar, 517. ship stern lift fitting seats, 518. fixed base, 519. bearing pin.
Embodiment
As Figure 1A, shown in Figure 1B, the utility model mainly comprises: a frame mechanism 6, be connected to the upper track drive assembly 2 cooperatively interacting for clamping tube and lower track drive assembly 7 on frame mechanism 6, for controlling the crawler belt clamp device 8 that track drive assembly 2 moves up and down, for adjusting stem lowering or hoisting gear 12 and the ship stern lowering or hoisting gear 5 of elevator mechanism 7 height and angle, for controlling the stem pipeline guiding device 13 of pipeline output, and for the chassis 10 of installation frame mechanism 6 and crawler belt clamp device 8, wherein, one end of frame mechanism 6 is connected with ship stern lowering or hoisting gear 5 by bearing pin, the other end of frame mechanism 6 is connected with stem lowering or hoisting gear 12 by bearing pin 11, and stem lowering or hoisting gear 12, 5 modes with bolts of ship stern lowering or hoisting gear are separately fixed on chassis 10, stem pipeline guiding device 13 and ship stern pipeline guiding device 4 are fixedly mounted on chassis 10 equally, and are arranged on respectively the both sides of frame mechanism 6.
Between stem pipeline guiding device 13 and ship stern pipeline guiding device 4 and upper and lower track drive assembly (2,7) three, form straight line, be mainly used in limiting pipeline and enter and leave the position of stretcher, when pipeline being entered and leaving upper and lower track drive assembly (2,7), locate all the time point-blank.
As shown in Figure 2, the range unit 3 that tests the speed is arranged on the upper end of stem pipeline guiding device 13, for measurement line laying length; The range unit that tests the speed comprises: support 312 below lifting frame 311 of lifting frame 311, movable set, be arranged on the roller 313 of lifting frame 311 bottoms, wherein, roller 313 is arranged in a roller frame, roller frame is connected with lifting frame 311, one end of roller frame is provided with an encoder 314, and encoder 314 is connected with computer; Be pressed on pipeline by roller 313, and according to encoder 314 feedback data to computer, just can calculate pipeline performance length and speed.
As shown in Figure 3, ship stern pipeline guiding device 4 is identical with stem pipeline guiding device 13, describe as an example of ship stern pipeline guiding device 4 example, ship stern pipeline guiding device 4 comprises: a guide frame 412, be arranged on two upper saw pulleys 411 on guide frame 412, wherein, two upper saw pulleys 411 are oppositely arranged, and midfeather one setpoint distance, in order to pipeline by time lead.
As shown in Figure 4, ship stern lowering or hoisting gear 5 comprises: two lifts that are oppositely arranged 511, be arranged on the motor reducer 513 on ship stern lift fitting seat 515, wherein, one end of motor reducer 513 is connected with drive motor, motor reducer 513 the other ends are connected with two lifts 511 respectively by coupling (512,514); And two lifts 511 are separately fixed at ship stern lift fitting seat (515,517) on, ship stern lift fitting seat (515,517) be fixed on fixed base 518 separately by bearing pin 519 respectively, fixed base 518 is fixed on again on chassis 10, one pull bar 516 is installed between ship stern lift fitting seat (515,517).By adjusting lift 511 adjustable heights, adjustment pipeline is high and immersion angle at stretcher Zhong center.
Stem lowering or hoisting gear 12 is identical with ship stern lowering or hoisting gear 5 structures, does not repeat them here.
Ship stern lowering or hoisting gear 5 jointly completes and adjusts the function of pipeline at stretcher Zhong center height and immersion angle with stem lowering or hoisting gear 12.
Hydraulic control system and the electric control system of upper and lower track drive assembly (2,7) are arranged in control cabinet 1, and control cabinet 1 is fixedly mounted on chassis 11.
Above-mentioned lower track drive assembly 7 is fixed on by fitting seat 9 on the base of frame mechanism 6, and upper track drive assembly 2 is positioned at the top of lower track drive assembly 7, and is connected with the oil hydraulic cylinder in crawler belt clamp device 8.
Power of the present utility model comes from electric control system, and electric control system is connected with drive motor, and drive motor drives the sprocket rotation of track drive assembly 2 and lower track drive assembly 7 by speed reducer, and sprocket wheel drives again tread shoe to rotate.
Hydraulic control system is connected with hydraulic power station, provide power to crawler belt clamp device 8, upper track drive assembly 2 to be moved downward by hydraulic power station, and in the middle of Pipeline clip being held in lower track drive assembly 7, and by the manual or upper and lower crawler belt of computer control (2,7) running.
Working principle of the present utility model:
When work, pipeline is carried to the left by right side, before work, upper track drive assembly 2 is raise by crawler belt clamp device 8, and pipeline is put between upper track drive assembly 2 and lower track drive assembly 7, contacts with lower track drive assembly 7.Move by operating console manually-operable crawler belt clamp device 8, control and drive upper track drive assembly 2 to move downward, jointly pipeline is clamped with lower track drive assembly 7, now pipeline is between upper track drive assembly 2 and lower track drive assembly 7, in the time that the clamping force of crawler belt clamp device 8 reaches requirement, 8 stop motions of crawler belt clamp device.
Rotate pipeline is carried from right to left by the drive motor of track drive assembly 2 in consing control and lower track drive assembly 8, or pipe laying barge moves right.Now pipeline is subject to certain tension force, require stringing wire tension to keep constant, in the time that the tension force of pipeline reality is greater than default tension force, the upper track drive assembly 2 of stretcher and the drive motor of lower track drive assembly 7 transfer line to the left automatically, to reduce actual tension, in the time arriving setting tension force, the drive motor of upper track drive assembly 2 and lower track drive assembly 8 is slack, makes pipeline keep setting tension force; In the time that the tension force of pipeline reality is less than default tension force, the upper track drive assembly 2 of stretcher and the drive motor of lower track drive assembly 7 automatically to the right transfer line increase pipeline actual tension, set tension force until pipeline reaches, guarantee that so all the time pipeline keeps constant tension force.
Above-mentioned hydraulic power station, oil hydraulic cylinder, drive motor, motor reducer, coupling, roller, encoder, track drive control, crawler belt and connection fastening piece are prior art or the manufacture of employing prior art, and the technology of not specified (NS) is prior art.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.