Auxiliary device for winding and unwinding umbilical cable

Abstract

The invention provides an auxiliary device for winding and unwinding an umbilical cable. The auxiliary device for collecting and releasing the umbilical cable comprises a supporting frame provided with a supporting shaft, and the supporting frame is constructed to be capable of being installed on a foundation to be installed; the fixing part comprises a plurality of fixing pieces, and the fixing pieces are arranged around the axis of the supporting shaft at intervals; the pressing part comprises a plurality of pressing pieces, the pressing pieces are arranged around the axis of the supporting shaft at intervals, the fixing part and the pressing part are arranged at intervals in the radial direction of the supporting shaft, an arc-shaped channel used for the umbilical cable to pass through is formed between the fixing part and the pressing part, and the arc-shaped channel is arranged around the axis of the supporting shaft. According to the technical scheme, the problem that in the prior art, the umbilical cable is prone to being separated from the auxiliary device for umbilical cable winding and unwinding, and consequently the umbilical cable is damaged is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of umbilical cable retraction and extension, and in particular to an auxiliary device for umbilical cable retraction and extension. Background Art

[0002] As the development of marine oil and gas and new energy gradually moves to the deep sea, submarine cables that connect floating equipment on the sea surface and extend to the seabed and land to transmit electrical energy and communication signals are becoming increasingly critical and costly components of the entire system.

[0003] Dynamic submarine cables are composite structures composed of copper conductors for transmitting current, shielding layers, insulation layers, metal shielding layers, sheath layers, armor layers, and optical cables for transmitting optical signals. The two most basic protection requirements for dynamic submarine cables are mechanical bearing and radial / longitudinal water blocking. Currently, dynamic submarine cables are gradually developing towards deep water, high voltage, and large capacity signal transmission.

[0004] In the prior art, when the umbilical cable is retracted or released on an offshore platform or ship or other facility, a fixed pulley structure is generally used to guide the umbilical cable, that is, the fixed pulley structure is used to change the extension direction of the umbilical cable. However, during the process of retracting or releasing the umbilical cable, when the umbilical cable moves in the guide groove of the fixed pulley structure, the umbilical cable is prone to detach from the guide groove, thereby causing damage to the umbilical cable. Summary of the invention

[0005] The main purpose of the present invention is to provide an auxiliary device for umbilical cable retraction and release, so as to solve the problem in the prior art that the umbilical cable is easily separated from the auxiliary device for umbilical cable retraction and release, resulting in damage to the umbilical cable.

[0006] In order to achieve the above-mentioned purpose, the present invention provides an auxiliary device for releasing and retracting an umbilical cable, comprising: a support frame having a support shaft, the support frame being constructed to be installable on a foundation to be installed; a fixing portion comprising a plurality of fixing members, the plurality of fixing members being arranged at intervals around the axis of the support shaft; a clamping portion comprising a plurality of clamping members, the plurality of clamping members being arranged at intervals around the axis of the support shaft, the fixing portion and the clamping portion being arranged at intervals along the radial direction of the support shaft, an arcuate channel for the umbilical cable to pass through being formed between the fixing portion and the clamping portion, and the arcuate channel being arranged around the axis of the support shaft.

[0007] Furthermore, the fixing member includes: a first shaft, which is arranged on the support frame; a first hub, which is rotatably arranged on the outer periphery of the first shaft, and a first groove is arranged on the outer periphery of the first hub, and the first groove extends around the axis of the first shaft.

[0008] Furthermore, a first through hole is provided on the first hub, the first shaft is passed through the first through hole, and an oil storage space is provided between the outer wall of the first shaft and the inner wall of the first through hole; a lubricant hole is provided on the first shaft, the first end of the lubricant hole extends to and passes through either end of the first shaft, the second end of the lubricant hole is connected to the oil storage space, and an oil nozzle is provided at the first end of the lubricant hole.

[0009] Further, the lubricant hole includes: a first hole segment, extending along the axial direction of the first shaft and penetrating either end of the first shaft to form a first end of the lubricant hole; one or more second hole segments, the second hole segment extending along the radial direction of the first shaft, one end of the second hole segment being connected to the first hole segment, and the other end of the second hole segment extending to the oil storage space and forming the second end of the lubricant hole, and the multiple second hole segments are arranged at intervals along the axial direction of the first shaft.

[0010] Furthermore, the lubricant hole has two second ends, and the fixing part also includes: two support bodies, which are arranged in the oil storage space, and the two support bodies are arranged at intervals along the axial direction of the first shaft, and the support body includes an inner ring and an outer ring rotatably arranged on the outer periphery of the inner ring, the inner ring is connected to the outer periphery of the first shaft, and the outer ring is connected to the inner wall of the first through hole, and the second end is located between the two support bodies.

[0011] Furthermore, the fixing member also includes: an oil guide sleeve connected to the outer periphery of the first shaft, the oil guide sleeve is located between the two support bodies, and the inner wall of the oil guide sleeve is provided with oil guide channels respectively connected to the two second ends, the outlets of the two oil guide channels are respectively arranged toward the two support bodies, and the outlets of the two oil guide channels are both connected to the oil storage space.

[0012] Furthermore, the clamping member includes: a second shaft, which is arranged on the support frame; a second hub, which is rotatably arranged on the outer periphery of the second shaft, and a second groove is arranged on the outer periphery of the second hub, and the second groove extends around the axis of the second shaft.

[0013] Furthermore, the hinged end of the second shaft is pivotally connected to the support frame, the connecting end of the second shaft is constructed to be detachably connected to the support frame, and the pivot axis between the second shaft and the support frame is arranged perpendicular to the axis of the second shaft.

[0014] Furthermore, a mounting piece is provided on one side of the support frame, the connecting end of the second shaft is constructed to be detachably connected to the mounting piece, the second shaft is swingably arranged around a pivot axis, and the second shaft has a first position where the connecting end is connected to the support frame and a second position where the connecting end is connected to the mounting piece.

[0015] Furthermore, the support frame is provided with a mounting hole and an opening connected to the mounting hole, and the cross-sectional area of ​​the opening is smaller than the cross-sectional area of ​​the mounting hole; the clamping member also includes: a pressing plate, installed at the connecting end; a handle, located at the outer periphery of the connecting end; an elastic member, one end of the elastic member abuts against the pressing plate, and the other end of the elastic member abuts against the handle, the handle is slidably matched with the second shaft, and the handle has a locking position close to the hinged end so that the handle cooperates with the mounting hole and an unlocking position away from the hinged end so that the handle is separated from the mounting hole.

[0016] Furthermore, the second shaft includes a first shaft segment and a second shaft segment that are connected and whose outer diameters decrease successively, the cross-sectional area of ​​the pressure plate is larger than the cross-sectional area of ​​the second shaft segment, and the handle is located at the outer periphery of the second shaft segment and the pressure plate; the handle includes a first sleeve and a second sleeve that are connected and whose inner diameters decrease successively, the elastic member is located between the first sleeve and the second shaft segment, and both ends of the elastic member are respectively abutted against the pressure plate and the second sleeve.

[0017] Furthermore, along the circumference of the support shaft, the pressing members and the fixing members are alternately arranged.

[0018] Furthermore, the distance between the central axis of the fixing member and the central axis of the pressing member is times.

[0019] Furthermore, the cross-section of the arc channel is circular, 1.05 times the diameter of the umbilical cable ≥ the diameter of the arc channel ≥ the diameter of the umbilical cable; or, the cross-section of the arc channel is elliptical, 1.05 times the diameter of the umbilical cable ≥ the short axis of the ellipse ≥ the diameter of the umbilical cable, and 1.15 times the diameter of the umbilical cable ≥ the long axis of the ellipse ≥ the diameter of the umbilical cable.

[0020] By applying the technical solution of the present invention, a stable guiding path can be provided for the umbilical cable during the retrieval and release process through the arc-shaped channel formed between the fixing part and the pressing part. In this way, compared with the guide groove of the fixed pulley in the prior art, the umbilical cable can be better limited, and the problem of the umbilical cable being out of the guide can be avoided, thereby effectively preventing the umbilical cable from being accidentally damaged due to external environmental factors (such as wind and waves) during the retrieval and release process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 A structural schematic diagram showing one perspective of an embodiment of an auxiliary device for releasing and retracting an umbilical cable according to the present invention;

[0023] Figure 2 Shows Figure 1A schematic structural diagram of another perspective of an embodiment of an auxiliary device for releasing and retracting an umbilical cable;

[0024] Figure 3 Shows Figure 1 A schematic diagram of the structure of a fixed side plate or a detachable side plate of an auxiliary device for releasing and collecting an umbilical cable;

[0025] Figure 4 Shows Figure 1 A schematic diagram of the structure of a fixing member of an auxiliary device for releasing and collecting an umbilical cable;

[0026] Figure 5 Shows Figure 4 a cross-sectional view of a fixing member;

[0027] Figure 6 Shows Figure 4 A schematic diagram of the structure of the oil guide sleeve;

[0028] Figure 7 Shows Figure 1 A schematic diagram of the structure of a clamping member of an auxiliary device for releasing and collecting an umbilical cable;

[0029] Figure 8 Shows Figure 7 A cross-sectional view of a clamping member.

[0030] The above drawings include the following reference numerals:

[0031] 10. Support frame; 11. Support shaft; 12. Mounting hole; 13. Opening; 15. Support foot; 16. Main lifting structure; 17. Auxiliary lifting structure; 20. Fixing piece; 21. First shaft; 22. First wheel hub; 23. First groove; 24. Lubricant hole; 241. First hole section; 242. Second hole section; 25. Oil nozzle; 26. Oil storage space; 27. Support body; 28. Oil guide sleeve; 281. Oil guide channel; 29. ​​Limiting plate; 30. Pressing piece; 31. Second shaft; 311. First shaft section; 312. Second shaft section; 32. Second wheel hub; 33. Second groove; 34. Pressing plate; 35. Handle; 351. First sleeve; 352. Second sleeve; 36. Elastic piece; 40. Mounting piece. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] like Figures 1 to 8As shown, an embodiment of the present invention provides an auxiliary device for releasing and retracting an umbilical cable, comprising: a support frame 10, having a support shaft 11, and the support frame 10 is constructed to be able to be installed on a foundation to be installed; a fixing portion, comprising a plurality of fixing members 20, and the plurality of fixing members 20 are arranged at intervals around the axis of the support shaft 11; a clamping portion, comprising a plurality of clamping members 30, and the plurality of clamping members 30 are arranged at intervals around the axis of the support shaft 11, and along the radial direction of the support shaft 11, the fixing portion and the clamping portion are arranged at intervals, and an arcuate channel for the umbilical cable to pass through is formed between the fixing portion and the clamping portion, and the arcuate channel is arranged around the axis of the support shaft 11.

[0034] In the above technical solution, the arc-shaped channel formed between the fixing part and the pressing part can provide a stable guiding path for the umbilical cable during the retraction and release process. In this way, compared with the guide groove of the fixed pulley in the prior art, the umbilical cable can be better limited, and the problem of the umbilical cable being out of the guide can be avoided, thereby effectively preventing the umbilical cable from being accidentally damaged due to external environmental factors (such as wind and waves) during the retraction and release process.

[0035] Furthermore, by providing an arc-shaped channel, the natural bending of the umbilical cable during retraction and release is ensured, stress concentration on the umbilical cable is reduced, protection of the umbilical cable is optimized, and the service life of the umbilical cable is extended.

[0036] Specifically, in an embodiment of the present invention, the umbilical cable can shuttle in the arc-shaped channel.

[0037] like Figure 4 As shown, in an embodiment of the present invention, the fixing member 20 includes: a first shaft 21, which is arranged on the support frame 10; a first hub 22, which is rotatably arranged on the outer periphery of the first shaft 21, and a first groove 23 is provided on the outer peripheral side of the first hub 22, and the first groove 23 extends around the axis of the first shaft 21.

[0038] In the above technical solution, the rotatable setting of the first hub 22 can significantly reduce the wear on the surface of the umbilical cable. Especially during the laying of the submarine cable, the umbilical cable needs to be frequently retracted and released in the seawater. The rotation of the first hub 22 can reduce the direct friction between the umbilical cable and the device to prevent the surface of the umbilical cable from being scratched and roughened, making it easier for marine organisms to attach. This effectively extends the service life of the umbilical cable, reduces maintenance costs, and improves the economic benefits of the operation.

[0039] like Figure 5As shown, in an embodiment of the present invention, a first through hole is provided on the first hub 22, the first shaft 21 is passed through the first through hole, and an oil storage space 26 is provided between the outer wall of the first shaft 21 and the inner wall of the first through hole; a lubricant hole 24 is provided on the first shaft 21, a first end of the lubricant hole 24 extends to and passes through either end of the first shaft 21, a second end of the lubricant hole 24 is communicated with the oil storage space 26, and an oil nozzle 25 is provided at the first end of the lubricant hole 24.

[0040] In the above technical solution, on the one hand, by setting an oil storage space 26 between the outer wall of the first shaft 21 and the inner wall of the first through hole, and delivering the lubricant to the contact surface through the lubricant hole 24, the friction and wear between the first hub 22 and the first shaft 21 can be effectively reduced, thereby extending the service life of the fixing part 20 and reducing the maintenance cost; on the other hand, by setting the lubrication space, the first hub 22 can rotate more smoothly on the first shaft 21, thereby improving the operating efficiency of the umbilical cable during the retraction and release process, especially in occasions requiring frequent operations, such as offshore oil and gas platforms.

[0041] Furthermore, the provision of the oil nozzle 25 makes the replenishment of the lubricant simple and direct, and the operator can lubricate without disassembling the wheel hub, which greatly simplifies the lubrication operation process and saves time and cost.

[0042] like Figure 5 As shown, in the embodiment of the present invention, the lubricant hole 24 includes: a first hole segment 241, which extends along the axial direction of the first shaft 21 and passes through either end of the first shaft 21 to form the first end of the lubricant hole 24; one or more second hole segments 242, the second hole segment 242 extends along the radial direction of the first shaft 21, one end of the second hole segment 242 is connected to the first hole segment 241, and the other end of the second hole segment 242 extends to the oil storage space 26 and forms the second end of the lubricant hole 24, and the multiple second hole segments 242 are arranged at intervals along the axial direction of the first shaft 21.

[0043] Through the above arrangement, the operator only needs to replenish the lubricant at one end of the first shaft 21, and the lubricant can be automatically distributed to the entire contact surface, which greatly reduces the maintenance frequency and cost and improves the availability and maintenance efficiency of the device.

[0044] Furthermore, the first hole segment 241 extends axially along the first shaft 21 and passes through to the shaft end, while the second hole segment 242 extends radially and is connected to the oil storage space 26. This multi-stage hole segment design can ensure that the lubricant is efficiently transmitted to the contact area between the hub and the shaft after being injected from the oil nozzle 25, thereby achieving comprehensive lubrication and reducing wear; and the multiple second hole segments 242 are arranged at intervals along the axial direction of the first shaft 21, which can ensure that the lubricant is evenly distributed over the entire length of the first shaft 21. In this way, even if different loads are borne at different positions of the shaft, it can be ensured that each part can be sufficiently lubricated to maintain a good operating state.

[0045] Preferably, in the embodiment of the present invention, the number of the second hole sections 242 is two.

[0046] like Figure 5 As shown, in the embodiment of the present invention, the lubricant hole 24 has two second ends, and the fixing member 20 further includes: two supports 27, which are arranged in the oil storage space 26, and the two supports 27 are arranged at intervals along the axial direction of the first shaft 21, and the supports 27 include an inner ring and an outer ring rotatably arranged on the outer periphery of the inner ring, the inner ring is connected to the outer periphery of the first shaft 21, and the outer ring is connected to the inner wall of the first through hole, and the second end is located between the two supports 27. Among them, the supports 27 are preferably bearings.

[0047] In the above technical solution, the two second ends are located between the two support bodies 27, which can ensure that the lubricant can be evenly distributed on the key parts of the bearing, especially on the raceways and rolling elements of the bearing, thereby enhancing the lubrication effect and reducing friction and wear.

[0048] Furthermore, the design of the oil storage space 26 and the lubricant hole 24 simplifies maintenance operations, and lubrication can be performed without disassembling the bearing. Maintenance personnel only need to add lubricant through the oil nozzle 25 to keep the bearing in good operating condition, thereby reducing maintenance costs and downtime.

[0049] Furthermore, the stability and self-adjustment capability of the bearing can ensure the stability and reliability of the first hub 22 when running on the first shaft 21, avoid component damage caused by sliding contact, and improve the operating stability of the entire umbilical cable retracting and releasing auxiliary device.

[0050] In one embodiment, the support body 27 may not be provided, the first hub 22 is rotatably provided on the first shaft 21, and the gap between the outer wall of the first shaft 21 and the inner wall of the first through hole is used to store lubricant.

[0051] In one embodiment, the support body 27 may also be a rotary pair made of a self-lubricating material, or a rotary pair that maintains a gap using magnetism or air pressure.

[0052] like Figure 5As shown, in the embodiment of the present invention, the fixing member 20 further includes: an oil guide sleeve 28, which is connected to the outer periphery of the first shaft 21, and the oil guide sleeve 28 is located between the two support bodies 27. The inner wall of the oil guide sleeve 28 is provided with oil guide channels 281 respectively connected to the two second ends, and the outlets of the two oil guide channels 281 are respectively arranged toward the two support bodies 27, and the outlets of the two oil guide channels 281 are both connected to the oil storage space 26.

[0053] Through the above-mentioned arrangement, the oil guide channel 281 of the oil guide sleeve 28 can accurately guide the lubricant to the key contact area of ​​the two support bodies 27 (bearings), ensuring that the lubricant is evenly distributed in the most needed parts, which not only improves the lubrication effect, reduces friction and wear, but also can achieve bearing corrosion protection. For example, the lubricant can be butter, which can isolate the bearing from direct contact with seawater, seawater salt spray and air, thereby preventing the bearing from being rapidly corroded.

[0054] Furthermore, the outlet of the oil guide channel 281 is arranged toward the support body 27 and is connected to the oil storage space 26, so that the lubricant can quickly and effectively enter the oil storage space 26 and the bearing from the oil nozzle 25, and the lubricant in the oil storage space 26 can also replenish the lubricant in the bearing in time.

[0055] Specifically, in the embodiment of the present invention, the number of the oil guide channels is set according to the number of the support bodies 27 .

[0056] Specifically, Figure 6 As shown, the oil guide sleeve 28 includes a first sleeve, a second sleeve and a third sleeve connected in sequence, the inner diameter of the first sleeve and the inner diameter of the third sleeve are both smaller than the inner diameter of the second sleeve, and the first sleeve and the third sleeve are both provided with two notches, the interior of the first sleeve and the notch on the first sleeve form one of the above-mentioned oil guide channels 281, and the interior of the third sleeve and the notch on the third sleeve form another of the above-mentioned oil guide channels 281.

[0057] Specifically, Figure 5 As shown, the fixing member 20 also includes two limit plates 29 connected to the first hub 22. The two limit plates are arranged corresponding to the two support bodies 27. Each limit plate is located on the side of the corresponding support body 27 away from the oil guide sleeve 28. The two limit plates are used to press the two support bodies 27 against the two sides of the oil guide sleeve 28 to prevent the support bodies 27 from axial movement.

[0058] Preferably, in the embodiment of the present invention, the first hub 22 is composed of a non-metallic outer layer and an inner layer bushing, the inner layer bushing is made of a material with a yield strength greater than 80 MPa, and the non-metallic outer layer and the inner layer bushing are assembled into one piece. The material of the inner layer bushing is preferably a composite material composed of a matrix material (such as resin) and a reinforcing material (such as carbon fiber, glass fiber), and can also be alloy steel.

[0059] like Figure 7 As shown, in an embodiment of the present invention, the clamping member 30 includes: a second shaft 31, which is arranged on the support frame 10; a second hub 32, which is rotatably arranged on the outer periphery of the second shaft 31, and a second groove 33 is provided on the outer peripheral side of the second hub 32, and the second groove 33 extends around the axis of the second shaft 31.

[0060] In the above technical solution, the rotatable setting of the second hub 32 can significantly reduce the wear on the surface of the umbilical cable. Especially during the laying of the submarine cable, the umbilical cable needs to be frequently retracted and released in seawater. The rotation of the second hub 32 can reduce the direct friction between the umbilical cable and the device to prevent the surface of the umbilical cable from being scratched and roughened, making it easier for marine organisms to attach. This effectively extends the service life of the umbilical cable, reduces maintenance costs, and improves the economic benefits of the operation.

[0061] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, in an embodiment of the present invention, the hinged end of the second shaft 31 is pivotally connected to the support frame 10, the connecting end of the second shaft 31 is constructed to be detachably connected to the support frame 10, and the pivot axis between the second shaft 31 and the support frame 10 is arranged perpendicular to the axis of the second shaft 31.

[0062] In the above technical solution, the detachable design of the connecting end of the second shaft 31 enables the clamping piece 30 to be quickly separated from the support frame 10, and the vertical setting of the pivot axis allows the clamping piece 30 to swing around the pivot axis on the support frame 10. The operator can easily adjust the roller to the correct position away from the arc channel to facilitate the installation or replacement of the umbilical cable without disassembling the entire device, thereby significantly improving the efficiency of installation and removal of the umbilical cable.

[0063] like Figure 1 As shown, in an embodiment of the present invention, a mounting member 40 is provided on one side of the support frame 10, and the connecting end of the second shaft 31 is constructed to be detachably connected to the mounting member 40, and the second shaft 31 is swingably arranged around a pivot axis, and the second shaft 31 has a first position where the connecting end is connected to the support frame 10 and a second position where the connecting end is connected to the mounting member 40.

[0064] Through the above arrangement, when the umbilical cable needs to be installed or removed, the second shaft 31 can be placed in the second position, and the mounting member 40 can support the connecting end of the clamping member 30, thereby preventing the clamping member 30 from shaking when installing or removing the umbilical cable; when the umbilical cable is installed, the second shaft can be placed in the first position to clamp and guide the umbilical cable.

[0065] Specifically, in the embodiment of the present invention, the support frame 10 is also provided with a mounting hole and an opening communicating with the mounting hole, and the cross-sectional area of ​​the opening is smaller than the cross-sectional area of ​​the mounting hole.

[0066] like Figure 3 , Figure 7 and Figure 8 As shown, in the embodiment of the present invention, the support frame 10 is provided with a mounting hole 12 and an opening 13 connected to the mounting hole 12, and the cross-sectional area of ​​the opening 13 is smaller than the cross-sectional area of ​​the mounting hole 12; the clamping member 30 also includes: a pressing plate 34, installed at the connecting end; a handle 35, located at the outer periphery of the connecting end; an elastic member 36, one end of the elastic member 36 abuts against the pressing plate 34, and the other end of the elastic member 36 abuts against the handle 35, the handle 35 is slidably matched with the second shaft 31, and the handle 35 has a locking position close to the hinged end to enable the handle 35 to cooperate with the mounting hole 12 and an unlocking position away from the hinged end to enable the handle 35 to be separated from the mounting hole 12.

[0067] Through the above arrangement, when it is necessary to disassemble or adjust the clamping member 30, the operator can pull the handle 35 to the unlocking position so that the second shaft 31 can be disengaged from the mounting hole 12 through the opening 13, so that the connecting end can be removed from the support frame 10, and then the second shaft 31 is swung to the second position so that the second shaft 31 enters the mounting hole of the mounting member 40 from the opening on the mounting member 40, and the handle 35 is released so that the handle 35 cooperates with the mounting hole on the mounting member 40 to fix the second shaft 31 in the second position, so that it is convenient to subsequently install the umbilical cable on multiple fixing members 20; after the umbilical cable is installed, the handle 35 can be pulled to be in the unlocking position, the second shaft 31 can be swung to the first position, and the handle 35 can be released to be in the locking position, wherein, due to the action of the elastic member 36, the handle 35 can be stably maintained in the locking position to compress the umbilical cable between the clamping portion and the fixing portion. In this way, the pressing member 30 can be quickly released without additional tools, so as to facilitate the installation of the umbilical cable, thereby improving the operating efficiency and convenience.

[0068] Preferably, in the embodiment of the present invention, the elastic member 36 is a spring.

[0069] Preferably, in the embodiment of the present invention, the pressing plate 34 can be fixed to the connection end by using one of the methods of threaded fastening, welding, pin fixing, glue fixing, etc., or a combination of the methods.

[0070] In one embodiment, the pressure plate 34 may not be provided, and the elastic member 36 may be fixed by providing a spring structure, and disposing the spring structure on the outer periphery of the second shaft 31 and abutting the elastic member 36 against the spring structure.

[0071] like Figure 8As shown, in the embodiment of the present invention, the second shaft 31 includes a first shaft segment 311 and a second shaft segment 312 which are connected and whose outer diameters decrease successively, the cross-sectional area of ​​the pressure plate 34 is larger than the cross-sectional area of ​​the second shaft segment 312, and the handle 35 is located at the outer periphery of the second shaft segment 312 and the pressure plate 34; the handle 35 includes a first sleeve 351 and a second sleeve 352 which are connected and whose inner diameters decrease successively, and the elastic member 36 is located between the first sleeve 351 and the second shaft segment 312, and both ends of the elastic member 36 are respectively abutted against the pressure plate 34 and the second sleeve 352.

[0072] Through the above arrangement, the elastic member 36 is located between the first sleeve 351 and the second shaft section 312, and its two ends are respectively abutted against the pressure plate 34 and the second sleeve 352, forming a stable and reliable elastic support structure, which ensures the stability of the clamping member 30 in the locked state and provides elastic feedback for the unlocking operation, making the operation smoother.

[0073] like Figure 1 As shown, in the embodiment of the present invention, the pressing members 30 and the fixing members 20 are alternately arranged along the circumference of the support shaft 11 .

[0074] Through the above arrangement, the clamping member 30 applies pressure at the contact point with the umbilical cable, while the fixing member 20 provides a support point for the umbilical cable to prevent displacement or vibration of the cable body during transportation. This evenly distributed clamping force helps to prevent the umbilical cable from being subjected to excessive force at a certain point, resulting in damage or deformation, thereby improving the safety of the umbilical cable during transportation; and the alternating arrangement of the clamping member 30 and the fixing member 20 can effectively stabilize the umbilical cable and reduce the unstable swing of the umbilical cable during transportation. Especially in the marine environment, this design can effectively resist the influence of external factors such as waves and wind, and improve the stability and reliability of the cable body in harsh environments.

[0075] Since there are many hollow infusion pipelines and gas pipelines in the umbilical cable, the umbilical cable with a large cross-section hollow pipeline has a small bending radius. Under the action of axial load, the umbilical cable may fail in the form of a cross-section change from circular to elliptical or even flattened. Therefore, specifically, in the embodiment of the present invention, the cross-section of the arc channel is circular, 1.05 times the diameter of the umbilical cable ≥ the diameter of the arc channel ≥ the diameter of the umbilical cable; or, the cross-section of the arc channel is elliptical, 1.05 times the diameter of the umbilical cable ≥ the short axis of the ellipse ≥ the diameter of the umbilical cable, and 1.15 times the diameter of the umbilical cable ≥ the long axis of the ellipse ≥ the diameter of the umbilical cable.

[0076] In the above technical solution, by ensuring that the cross-sectional size of the arc-shaped channel is slightly larger than the diameter of the umbilical cable, the cross-sectional shape of the umbilical cable can be effectively prevented from changing from a circular shape to an elliptical shape or even being flattened under the action of the axial load, thereby protecting the hollow infusion pipeline and gas pipeline inside the cable body from damage and maintaining its transmission performance.

[0077] Furthermore, when the arc-shaped channel adopts a circular cross-section, its slightly larger diameter (1.05 times the diameter of the umbilical cable) can provide additional space, which can maintain the roundness of the umbilical cable and prevent its deformation even when it is under load.

[0078] Furthermore, a suitable channel size can reduce the friction between the umbilical cable and the channel wall, reduce the wear of the cable body during transportation, and extend its service life.

[0079] Furthermore, the design of the elliptical channel, through the matching of its major and minor axes with the diameter of the umbilical cable, can provide more precise guidance for the cable body, reduce deviation and swing during transportation, and improve the transmission quality and stability of the cable body.

[0080] It should be noted that, in the embodiment of the present invention, the normal direction of the ideal contact position with the umbilical cable is the direction of the minor axis of the ellipse.

[0081] Specifically, in the embodiment of the present invention, the distance between the central axis of the fixing member and the central axis of the pressing member is 1 / 2 of the diameter of the umbilical cable. times.

[0082] Through the above-mentioned setting, the maximum stress value can be avoided from occurring at the intersection of the neutral layer and the cross section of the infusion pipeline (gas pipeline), that is, on the neutral axis, and it can be ensured that even if the umbilical cable is subjected to axial load and bending stress during transportation, the steel pipe and hollow pipeline inside it will not form excessive shear stress on the neutral axis to cause distortion. On the contrary, the stress can be more evenly distributed on the cable body, thereby protecting the structural integrity of the cable body and the performance of the internal pipeline, avoiding damage to the cable body caused by stress concentration, and extending the service life of the cable body.

[0083] It should be noted that in the embodiments of the present invention, in material mechanics and mechanical engineering, the neutral layer refers to a theoretical "strain-free" layer inside the material during bending, torsion or other types of deformation. When an object such as a beam or a pipe is bent and deformed under the action of a bending moment, the outer material will stretch and the inner material will shorten, and in the middle of the thickness of the object, there is a layer that neither stretches nor shortens, and this layer is the neutral layer. On the neutral layer, the fibers of the material are not stretched or compressed, so theoretically they will not be affected by bending stress.

[0084] like Figure 1As shown, in the embodiment of the present invention, the support frame 10 includes a fixed side panel and a detachable side panel detachably connected to the fixed side panel, the fixed side panel and the detachable side panel are arranged at intervals, and the fixed side panel and the detachable side panel are provided with support feet 15, so as to facilitate the placement of the support frame 10. Among them, the support shaft 11 is composed of a thick shaft in the middle and thin shafts at both ends, and the two thin shafts are respectively fixed to the fixed side panel and the detachable side panel by two fastening structures. Specifically, the thin shaft can be fixed to the support frame 10 by one or a combination of a retaining spring structure, threaded fastening, welding, pin fixing, glue fixing, etc.

[0085] like Figure 1 As shown, in an embodiment of the present invention, the support frame 10 is provided with a main lifting structure 16 and two auxiliary lifting structures 17, the main lifting structure is arranged at the top of the support frame 10, the support shaft 11 is located at the bottom of the support frame 10, and the two auxiliary lifting structures are respectively arranged on the fixed side panel and the removable side panel.

[0086] It should be noted that the auxiliary device for releasing and retracting the umbilical cable according to the embodiment of the present invention has a lower failure rate and is simple to maintain and easy to use, and is more adaptable to harsh offshore application environments.

[0087] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: through the arc-shaped channel formed between the fixing portion and the pressing portion, a stable guiding path can be provided for the umbilical cable during the retraction and release process. In this way, compared with the guide groove of the fixed pulley in the prior art, the umbilical cable can be better limited, and the problem of the umbilical cable being out of the guide can be avoided, thereby effectively preventing the umbilical cable from being accidentally damaged due to external environmental factors (such as wind and waves) during the retraction and release process.

[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An auxiliary device for umbilical cable collection and release, characterized in that: include: A support frame (10) having a support shaft (11), wherein the support frame (10) is configured to be installed on a foundation to be installed; A fixing portion, comprising a plurality of fixing members (20), wherein the plurality of fixing members (20) are arranged at intervals around the axis of the support shaft (11); The clamping portion comprises a plurality of clamping members (30), wherein the plurality of clamping members (30) are arranged at intervals around the axis of the support shaft (11), and along the radial direction of the support shaft (11), the fixing portion and the clamping portion are arranged at intervals, and an arcuate channel for the umbilical cable to pass through is formed between the fixing portion and the clamping portion, and the arcuate channel is arranged around the axis of the support shaft (11).

2. The auxiliary device for releasing and retracting the umbilical cable according to claim 1, characterized in that: The fixing member (20) comprises: A first shaft (21) is arranged on the support frame (10); The first hub (22) is rotatably arranged on the outer periphery of the first shaft (21); a first groove (23) is arranged on the outer periphery of the first hub (22); and the first groove (23) extends around the axis of the first shaft (21).

3. The auxiliary device for releasing and retracting the umbilical cable according to claim 2, characterized in that: The first hub (22) is provided with a first through hole, the first shaft (21) is passed through the first through hole, and an oil storage space (26) is provided between the outer wall of the first shaft (21) and the inner wall of the first through hole; A lubricant hole (24) is provided on the first shaft (21), a first end of the lubricant hole (24) extends to and passes through either end of the first shaft (21), a second end of the lubricant hole (24) is communicated with the oil storage space (26), and an oil nozzle (25) is provided at the first end of the lubricant hole (24).

4. The auxiliary device for releasing and retracting the umbilical cable according to claim 3, characterized in that: The lubricant hole (24) comprises: a first hole section (241) extending along the axial direction of the first shaft (21) and penetrating through either end of the first shaft (21) to form a first end of the lubricant hole (24); One or more second hole segments (242), the second hole segments (242) extending in the radial direction of the first shaft (21), one end of the second hole segment (242) communicating with the first hole segment (241), the other end of the second hole segment (242) extending to the oil storage space (26) and forming the second end of the lubricant hole (24), and a plurality of second hole segments (242) being arranged at intervals in the axial direction of the first shaft (21).

5. The auxiliary device for releasing and retracting the umbilical cable according to claim 3, characterized in that: The lubricant hole (24) has two second ends, and the fixing member (20) further comprises: Two support bodies (27) are arranged in the oil storage space (26), and the two support bodies (27) are arranged at intervals along the axial direction of the first shaft (21). The support body (27) includes an inner ring and an outer ring rotatably arranged on the outer periphery of the inner ring, the inner ring is connected to the outer periphery of the first shaft (21), and the outer ring is connected to the inner wall of the first through hole, and the second end is located between the two support bodies (27).

6. The auxiliary device for releasing and retracting the umbilical cable according to claim 5, characterized in that: The fixing member (20) further comprises: An oil guide sleeve (28) is connected to the outer periphery of the first shaft (21), the oil guide sleeve (28) is located between the two support bodies (27), an inner wall of the oil guide sleeve (28) is provided with oil guide channels (281) respectively connected to the two second ends, outlets of the two oil guide channels (281) are respectively arranged toward the two support bodies (27), and the outlets of the two oil guide channels (281) are both connected to the oil storage space (26).

7. The auxiliary device for releasing and retracting the umbilical cable according to any one of claims 1 to 6, characterized in that: The pressing member (30) comprises: A second shaft (31) is arranged on the support frame (10); The second hub (32) is rotatably arranged on the outer periphery of the second shaft (31), and a second groove (33) is provided on the outer periphery of the second hub (32), and the second groove (33) extends around the axis of the second shaft (31).

8. The auxiliary device for releasing and retracting the umbilical cable according to claim 7, characterized in that: The hinged end of the second shaft (31) is pivotally connected to the support frame (10), the connecting end of the second shaft (31) is constructed to be detachably connected to the support frame (10), and the pivot axis of the second shaft (31) and the support frame (10) is arranged perpendicular to the axis of the second shaft (31).

9. The auxiliary device for releasing and retracting the umbilical cable according to claim 8, characterized in that: A mounting member (40) is provided on one side of the support frame (10); a connecting end of the second shaft (31) is configured to be detachably connected to the mounting member (40); the second shaft (31) is swingably arranged around the pivot axis; and the second shaft (31) has a first position in which the connecting end is connected to the support frame (10) and a second position in which the connecting end is connected to the mounting member (40).

10. The auxiliary device for releasing and retracting the umbilical cable according to claim 8, characterized in that: The support frame (10) is provided with a mounting hole (12) and an opening (13) communicating with the mounting hole (12), wherein the cross-sectional area of ​​the opening (13) is smaller than the cross-sectional area of ​​the mounting hole (12); the pressing member (30) further comprises: A pressing plate (34) mounted on the connecting end; A handle (35) located at the outer periphery of the connecting end; An elastic member (36), one end of the elastic member (36) abuts against the pressure plate (34), the other end of the elastic member (36) abuts against the handle (35), the handle (35) slidably cooperates with the second shaft (31), and the handle (35) has a locking position close to the hinged end so that the handle (35) cooperates with the mounting hole (12) and an unlocking position away from the hinged end so that the handle (35) is separated from the mounting hole (12).

11. The auxiliary device for releasing and retracting the umbilical cable according to claim 10, characterized in that: The second shaft (31) comprises a first shaft segment (311) and a second shaft segment (312) which are connected and have outer diameters that decrease successively, the cross-sectional area of ​​the pressing plate (34) is larger than the cross-sectional area of ​​the second shaft segment (312), and the handle (35) is located on the outer periphery of the second shaft segment (312) and the pressing plate (34); The handle (35) comprises a first sleeve (351) and a second sleeve (352) which are connected and have inner diameters that decrease successively. The elastic member (36) is located between the first sleeve (351) and the second shaft section (312). Two ends of the elastic member (36) are respectively in contact with the pressure plate (34) and the second sleeve (352).

12. The auxiliary device for releasing and retracting the umbilical cable according to any one of claims 1 to 6, characterized in that: Along the circumference of the support shaft (11), the pressing members (30) and the fixing members (20) are arranged alternately.

13. The auxiliary device for releasing and retracting an umbilical cable according to any one of claims 1 to 6, characterized in that: The distance between the central axis of the fixing member (20) and the central axis of the pressing member (30) is equal to the diameter of the umbilical cable. times.

14. The auxiliary device for releasing and retracting an umbilical cable according to any one of claims 1 to 6, characterized in that: The cross section of the arc-shaped channel is circular, and 1.05 times the diameter of the umbilical cable ≥ the diameter of the arc-shaped channel ≥ the diameter of the umbilical cable; Alternatively, the cross section of the arc-shaped channel is an ellipse, 1.05 times the diameter of the umbilical cable ≥ the short axis of the ellipse ≥ the diameter of the umbilical cable, and 1.15 times the diameter of the umbilical cable ≥ the long axis of the ellipse ≥ the diameter of the umbilical cable.

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