CN216613497U - Go into sea cable tow chain conveyor - Google Patents
Go into sea cable tow chain conveyor Download PDFInfo
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- CN216613497U CN216613497U CN202123279628.4U CN202123279628U CN216613497U CN 216613497 U CN216613497 U CN 216613497U CN 202123279628 U CN202123279628 U CN 202123279628U CN 216613497 U CN216613497 U CN 216613497U
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Abstract
The utility model discloses a submarine cable drag chain conveying device, which comprises a frame, wherein 6 fixed pulleys and 2 hydraulic cylinders are arranged at the top of the frame, 5 movable pulleys are arranged in the frame, the 6 fixed pulleys are respectively a first fixed pulley, a second fixed pulley, a third fixed pulley and a fourth fixed pulley and are fixed through pulley shaft supports in sequence, the bottoms of the pulley shaft supports of the first fixed pulley and the third fixed pulley are respectively provided with a pressure sensor, two pulley shaft bases are respectively connected with two rotary encoders, the pressure sensors and the rotary encoders are in signal connection with a master control room, the 5 movable pulleys are divided into two groups, each group of movable pulleys are integrally fixed through connecting frames, the connecting frames of each group are fixedly connected with piston rods of 1 hydraulic cylinder, and the 6 fixed pulleys and the 5 movable pulleys are connected through cable drag chain pulleys in sequence, the submarine cable drag chain conveying device has the advantages of small occupied space and lower cost: by adopting the movable pulley block with 10 multiplying power, the internal space of the frame is fully utilized to store the cable, the occupied space of the equipment is greatly reduced, and the manufacturing, maintenance and use cost is reduced.
Description
Technical Field
The utility model relates to the field of cable conveying, in particular to a towline conveying device for a submarine cable.
Background
The submarine cable drag chain device is a cable transmission device, and is a device for transmitting a cable to underwater in ocean engineering so as to provide energy for underwater equipment. When the offshore platform works, all electric energy is generated by a generator carried by the offshore platform, the in-sea cable drag chain conveying device is fixed on the offshore platform, and the electric energy can be transmitted to underwater equipment from the offshore platform by controlling the conveying and the recovery of the cable drag chain.
The in-sea cable drag chain conveying device controls the movement of the movable pulley block through self hydraulic equipment, so that the movement control of the cable drag chain is realized, and the purpose of conveying cables is achieved. At present, the utility model provides a technical scheme to meet the design requirement aiming at less research on underwater cable transmission.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a submarine cable drag chain conveying device which comprises a frame, a pulley block and a hydraulic oil cylinder, wherein the frame is fixedly connected with an offshore operation platform and comprises a first frame and a second frame which are integrally fixed, and a vacant area is formed between the first frame and the second frame;
the pulley block comprises a plurality of fixed pulleys and a plurality of movable pulleys, each fixed pulley is provided with a pulley shaft support in a matching way, the fixed pulleys are fixed at the upper ends of the first frame and the second frame through the pulley shaft supports respectively, and the fixed pulleys are arranged between the first frame and the second frame; the plurality of movable pulleys are fixed through a connecting frame, the plurality of movable pulleys are arranged in the vacant area, and the plurality of fixed pulleys and the plurality of movable pulleys are connected through a cable drag chain pulley;
the hydraulic oil cylinder is arranged between the fixed pulleys and is fixed at the upper ends of the first frame and the second frame, a piston rod of the hydraulic oil cylinder extends into the vacant area, and one end of the piston rod extending into the vacant area is fixedly connected with the connecting frame;
when a piston rod of the hydraulic oil cylinder stretches, the movable pulleys move along the stretching direction of the piston rod in the vacant area.
Furthermore, the plurality of fixed pulleys are respectively a first fixed pulley, a second fixed pulley, a third fixed pulley, a fourth fixed pulley, a fifth fixed pulley and a sixth fixed pulley, the first fixed pulley, the second fixed pulley, the third fixed pulley, the fourth fixed pulley, the fifth fixed pulley and the sixth fixed pulley are sequentially fixed at the upper end of the frame, and the first fixed pulley and the sixth fixed pulley are respectively close to two sides of the upper end of the frame;
it is a plurality of the movable pulley package is divided into first group movable pulley and second group movable pulley, connecting frame includes first connecting frame and second connecting frame, first group movable pulley is through first connecting frame is integrative fixed, second group movable pulley passes through second connecting frame is integrative fixed.
Furthermore, the number of the hydraulic oil cylinders is two, and piston rods of the two hydraulic oil cylinders are respectively connected and fixed with the first connecting frame and the second connecting frame.
Further, the first set of movable pulleys comprises a first movable pulley, a second movable pulley and a third movable pulley; the second group of movable pulleys comprises a fourth movable pulley and a fifth movable pulley, and the fixed pulleys and the movable pulleys are connected in sequence by a first fixed pulley, a first movable pulley, a second fixed pulley, a second movable pulley, a third fixed pulley, a third movable pulley, a fourth fixed pulley, a fourth movable pulley, a fifth fixed pulley, a fifth movable pulley and a sixth fixed pulley.
Furthermore, two ends of the first connecting frame and two ends of the second connecting frame are provided with a round guide steel pipe, 4 round guide steel pipes respectively penetrate through the first connecting frame and the second connecting frame to be connected and fixed with the offshore operation platform, and 4 round guide steel pipes are arranged in parallel with 2 piston rods of the hydraulic oil cylinders.
Furthermore, a pulley shaft support fixed with the first fixed pulley and a pulley shaft support fixed with the sixth fixed pulley are respectively provided with a pressure sensor and a rotary encoder, and the two pressure sensors are respectively arranged at the bottoms of the two pulley shaft supports; and the two rotary encoders are respectively connected with the two pulley shaft supports.
Compared with the prior art, the utility model has the following beneficial effects: by adopting the movable pulley block with 10 multiplying power, the internal space of the frame is fully utilized to store the cable, the occupied space of equipment is greatly reduced, and the manufacturing, maintenance and use cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a towline conveying device for a submarine cable according to the present invention;
FIG. 2 is a schematic view of the present invention as it is being transported underwater along a cable;
fig. 3 is a schematic view of the present invention during the recovery of an underwater cable.
In the figure, 1, a first frame; 2. a second frame; 3. a hydraulic cylinder; 4. a first fixed pulley; 5. a second fixed pulley; 6. a third fixed pulley; 7. a fourth fixed pulley; 8. a fifth fixed pulley; 9. a sixth fixed pulley; 10. A first movable pulley; 11. a second movable pulley; 12. a third movable pulley; 13. a fourth movable pulley; 14. a fifth fixed pulley; 15. guiding the round steel pipe; 16. a cable drag chain.
Detailed Description
A more detailed description of an offshore cable drag chain conveyor according to the present invention will now be given, with reference to the accompanying schematic drawings, in which preferred embodiments of the utility model are shown, it being understood that a person skilled in the art may modify the utility model herein described while still achieving the advantageous effects of the utility model, and that the following description is therefore to be construed as broadly as possible for a person skilled in the art and not as limiting the utility model.
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.
As shown in figure 1, the submarine entering cable drag chain conveying device comprises a steel structure frame, a hydraulic oil cylinder 3, a pulley block, a guide device, a pressure sensor, a rotary encoder and a cable drag chain 16.
A steel framework frame: the steel structure frame is a channel steel welding structure and comprises a first frame 1 and a second frame 2, a vacant area is formed between the first frame and the second frame, the whole length is about 8m (7900mm), the height is about 8.5m (8660mm), and the width is about 1m (1088 mm).
A hydraulic oil cylinder: 2 sets of 2-stage oil cylinders with the stroke of 7.2m can provide 0-75t of thrust.
Pulley block: comprises 6 fixed pulleys, corresponding pulley shaft supports and 5 movable pulleys.
The 6 fixed pulleys are respectively a first fixed pulley 4, a second fixed pulley 5, a third fixed pulley 6, a fourth fixed pulley 7, a fifth fixed pulley 8 and a sixth fixed pulley 9. The 6 fixed pulleys are arranged in the same structure, the diameter of each fixed pulley is about 1m, and the pulleys are all steel plate welding structures;
the 5 movable pulleys are divided into two groups, the two groups of movable pulleys are a first group of movable pulleys and a second group of movable pulleys, the first group of movable pulleys comprises a first movable pulley 10, a second movable pulley 11 and a third movable pulley 12, and the 3 movable pulleys are integrally fixed through a first connecting frame; the second group of movable pulleys comprises a fourth movable pulley 13 and a fifth movable pulley 14, the two movable pulleys are integrally fixed through a second connecting frame, and the first connecting frame and the second connecting frame are both frames formed by welding I-shaped steel.
A guide device: two groups are provided, each group comprises two guide round steel tubes, and the diameter of each guide round steel tube 15 is 40-60 mm.
A sensor: the device comprises two pressure sensors and two rotary encoders, wherein the pressure sensors and the rotary encoders are respectively used for acquiring the load borne by the pulley and the conveyed length information of the cable drag chain.
Cable drag chain: the cable is made of non-metal materials, is corrosion-resistant, has certain tensile capacity, is used for placing cables, and consists of chain plates, pin shafts and a cable frame, and the cables are placed in the cable frame and can be used for placing 14 cables.
The steel structure frame is fixed on the offshore operation platform through welding, the first fixed pulley, the second fixed pulley, the third fixed pulley, the fourth fixed pulley, the fifth fixed pulley and the sixth fixed pulley are respectively fixed at the upper ends of the first frame and the second frame through corresponding pulley shaft supports and are arranged between the first frame and the second frame, the first movable pulley block and the second movable pulley block are arranged in a vacant area, and the first fixed pulley, the first movable pulley, the second fixed pulley, the second movable pulley, the third fixed pulley, the third movable pulley, the fourth fixed pulley, the fourth movable pulley, the fifth fixed pulley, the fifth movable pulley and the sixth fixed pulley are connected through a cable drag chain pulley in sequence. The pulley block is a 10-multiplying-power movable pulley block, so that the cable is stored in an empty area, the occupied space of equipment is greatly reduced, and the manufacturing, maintenance and use costs are reduced. And the utility model has the capability of conveying cables to the depth of 50 meters under water at the maximum conveying distance of 70 meters.
And the two sets of hydraulic oil cylinders are fixed at the top of the steel structure frame and are respectively arranged between the second fixed pulley and the third fixed pulley and between the fourth fixed pulley and the fifth fixed pulley, each hydraulic oil cylinder comprises a piston rod, one end of each piston rod is fixedly connected with the corresponding hydraulic oil cylinder, and the other end of each piston rod extends into the empty area and is respectively fixedly connected with the first connecting frame and the second connecting frame. When the piston rod of the hydraulic oil cylinder performs piston motion, the group of movable pulleys connected with the hydraulic oil cylinder can perform displacement along the extension direction of the piston rod.
Furthermore, 4 guiding circular steel tubes respectively penetrate through the left end and the right end of the first connecting frame and the second connecting frame and are fixed on the offshore operation platform to play a guiding role and prevent the movable pulley block from inclining in the movement process.
The two pressure sensors are respectively fixed at the bottoms of the pulley shaft supports of the first fixed pulley and the sixth fixed pulley and are used for measuring the pressure borne by the pulleys; the two rotary encoders are respectively connected with pulley shaft supports of the first fixed pulley and the sixth fixed pulley and are used for measuring the conveying or recovery length of the drag chain; the two are in signal connection with a control system of the master control room, and data acquired by the sensor is used as a basis for determining the magnitude of thrust provided by the hydraulic oil cylinder.
The pressure sensor and the rotary encoder gather the acquired data to the master control room, the thrust provided by the hydraulic equipment is automatically controlled by a program, manual intervention is not needed, the control is simple and convenient, and the equipment power is provided by the hydraulic oil cylinder, so that the hydraulic control system has the advantages of stable work and high reliability.
Referring to fig. 2, when the device conveys a cable underwater, an external load pulls the cable drag chain to move in the direction of B, and drives the first fixed pulley to rotate in the direction of a. The movable pulley is driven to lift along with the movement of the cable drag chain. When the operation is carried out in a shallow water area, the second group of movable pulleys are propped by the oil cylinder and do not move, and only when the operation is carried out in a deep water area, the second group of movable pulleys can be lifted upwards after moving to the upper limit position along with the first group of movable pulleys. The external load changes along with the downward conveying of the drag chain, and a certain mathematical relation between the ocean current impact load and the water inlet length of the drag chain can be obtained according to the catenary principle. Therefore, the pressure of the first fixed pulley is measured by using the pressure sensor, the conveyed length of the drag chain can be provided by the rotary encoder, and the pressure sensor and the rotary encoder are compared and corrected to obtain the tension borne by the drag chain; the result is transmitted to a control system, the pressure of the oil cylinder can be adjusted, so that the oil cylinder is guaranteed to provide enough pressure all the time, meanwhile, the pressure cannot excessively break the drag chain, the functional requirement of the drag chain is met, the safety of the drag chain is guaranteed, and meanwhile, energy is saved.
Referring to fig. 3, when the cable is recovered from the water, the hydraulic cylinder provides power to push the first group of movable pulleys to move downwards, so as to drive the first fixed pulley a1 to rotate and drive the cable drag chain B1 to slide, so that the cable is recovered to an empty area inside the steel structure frame on the deck. When the cable is recovered, if the cable is operated in a deep water area, the hydraulic equipment firstly pushes the second group of movable pulleys, when the second group of movable pulleys move to the lower limit position, the corresponding hydraulic oil cylinder is locked, and then the first group of movable pulleys begin to be pushed. The same way as the cable is conveyed underwater, along with the recovery of the cable drag chain, the load changes, the pressure sensor measures the pressure of the pulley at the outlet, meanwhile, the rotary encoder can provide the recovered length of the drag chain, and the two are compared and corrected to obtain the tension borne by the drag chain; the result is transmitted to a control system, the pressure of the oil cylinder can be adjusted, so that the oil cylinder is guaranteed to provide enough pressure all the time, meanwhile, the pressure cannot excessively break the drag chain, the functional requirement of the drag chain is met, the safety of the drag chain is guaranteed, and meanwhile, energy is saved.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (6)
1. The offshore cable drag chain conveying device is characterized by comprising a frame, a pulley block and a hydraulic oil cylinder, wherein the frame is fixedly connected with an offshore operation platform and comprises a first frame and a second frame which are integrally fixed, and a vacant area is formed between the first frame and the second frame;
the pulley block comprises a plurality of fixed pulleys and a plurality of movable pulleys, each fixed pulley is provided with a pulley shaft support in a matching way, the fixed pulleys are fixed at the upper ends of the first frame and the second frame through the pulley shaft supports respectively, and the fixed pulleys are arranged between the first frame and the second frame; the plurality of movable pulleys are fixed through a connecting frame, the plurality of movable pulleys are arranged in the vacant area, and the plurality of fixed pulleys and the plurality of movable pulleys are connected through a cable drag chain pulley;
the hydraulic oil cylinder is arranged among the fixed pulleys and fixed at the upper ends of the first frame and the second frame, and a piston rod of the hydraulic oil cylinder extends into the vacant area and is fixedly connected with the connecting frame;
when a piston rod of the hydraulic oil cylinder stretches, the movable pulleys move along the stretching direction of the piston rod in the vacant area.
2. The submarine cable drag chain conveying device according to claim 1, wherein the fixed pulleys are a first fixed pulley, a second fixed pulley, a third fixed pulley, a fourth fixed pulley, a fifth fixed pulley and a sixth fixed pulley, the first fixed pulley, the second fixed pulley, the third fixed pulley, the fourth fixed pulley, the fifth fixed pulley and the sixth fixed pulley are fixed on the upper end of the frame in sequence, and the first fixed pulley and the sixth fixed pulley are close to two sides of the upper end of the frame respectively;
it is a plurality of the movable pulley package is divided into first group movable pulley and second group movable pulley, connecting frame includes first connecting frame and second connecting frame, first group movable pulley is through first connecting frame is integrative fixed, second group movable pulley passes through second connecting frame is integrative fixed.
3. The offshore cable drag chain conveying device according to claim 2, wherein the number of the hydraulic oil cylinders is two, and piston rods of the two hydraulic oil cylinders are fixedly connected with the first connecting frame and the second connecting frame respectively.
4. The marine cable drag chain conveyor of claim 3, wherein said first set of traveling block comprises a first traveling block, a second traveling block, and a third traveling block; the second group of movable pulleys comprises a fourth movable pulley and a fifth movable pulley, and the fixed pulleys and the movable pulleys are connected in sequence by a first fixed pulley, a first movable pulley, a second fixed pulley, a second movable pulley, a third fixed pulley, a third movable pulley, a fourth fixed pulley, a fourth movable pulley, a fifth fixed pulley, a fifth movable pulley and a sixth fixed pulley.
5. The submarine cable drag chain conveying device according to claim 4, wherein two ends of the first connecting frame and two ends of the second connecting frame are provided with a round guide steel tube, 4 round guide steel tubes respectively penetrate through the first connecting frame and the second connecting frame to be connected and fixed with the offshore operation platform, and 4 round guide steel tubes are arranged in parallel with piston rods of 2 hydraulic oil cylinders.
6. The device for conveying the submarine cable drag chain according to claim 5, wherein the pulley shaft support fixed to the first fixed pulley and the pulley shaft support fixed to the sixth fixed pulley are respectively provided with a pressure sensor and a rotary encoder, and the two pressure sensors are respectively arranged at the bottoms of the two pulley shaft supports; and the two rotary encoders are respectively connected with the two pulley shaft supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123279628.4U CN216613497U (en) | 2021-12-24 | 2021-12-24 | Go into sea cable tow chain conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123279628.4U CN216613497U (en) | 2021-12-24 | 2021-12-24 | Go into sea cable tow chain conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216613497U true CN216613497U (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123279628.4U Active CN216613497U (en) | 2021-12-24 | 2021-12-24 | Go into sea cable tow chain conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216613497U (en) |
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2021
- 2021-12-24 CN CN202123279628.4U patent/CN216613497U/en active Active
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