Multi-functional operation and maintenance ship

By designing an adjustment mechanism and a winding roller combination structure on the maintenance vessel, the automation and stability of cable winding and unwinding are achieved, solving the problem of cumbersome cable winding operations in existing technologies and improving efficiency and safety.

CN224409563UActive Publication Date: 2026-06-26CHINA ENERGY CONSTR GP JIANGSU ELECTRIC POWER CONSTR FIRST ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA ENERGY CONSTR GP JIANGSU ELECTRIC POWER CONSTR FIRST ENG
Filing Date
2025-08-26
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing cable retraction structure of maintenance vessels is set up independently, lacking a linkage and unified control mechanism, which makes cable retraction and release operations cumbersome, inefficient, and unable to achieve centralized control or synchronous adjustment.

Method used

Design a multi-functional maintenance vessel that adopts a combination structure of adjustment mechanism and winding roller one and winding roller two. The synchronous adjustment of multiple winding roller one is realized by drive motor and rotary motor. The winding roller one can be moved to the middle of the cabinet for maximum winding. The rotary motor drives automatic wire winding and clamps and fixes the cable after winding is completed by adjustment mechanism.

Benefits of technology

It automates and stabilizes the cable deployment and retraction process, improves operational convenience and efficiency, prevents cables from becoming loose, enhances the safety and reliability of offshore operations, and optimizes space utilization.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of operation and maintenance ship, specifically disclose a multifunctional operation and maintenance ship, including operation and maintenance ship body, the both sides of operation and maintenance ship body's top are all provided with cable storage mechanism, the cable storage mechanism contains a plurality of cabinet body, the utility model discloses the setting of adjusting mechanism realizes the synchronous adjustment of multiple winding roller axle no.
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Description

Technical Field

[0001] This utility model belongs to the field of maintenance vessel technology, specifically relating to a multi-functional maintenance vessel. Background Technology

[0002] Operation and maintenance vessels are important transportation and maintenance tools for the construction, operation, and maintenance of offshore wind farms. They are mainly used to carry operation and maintenance personnel, equipment, and spare parts, enabling efficient commuting and material transfer between land or mother ship and wind turbine towers. As the scale of offshore wind farms continues to expand and the distance from shore increases, the functional requirements of operation and maintenance vessels are gradually developing towards multi-functionality and integration. Modern multi-functional operation and maintenance vessels must not only have good navigation stability and wind and wave resistance, but also integrate multiple functions such as cable deployment and retraction, equipment hoisting, power supply, and remote communication to cope with diverse offshore operation scenarios.

[0003] When offshore wind farms require maintenance, maintenance vessels often need to carry a large number of control cables, power cables, or optical fibers for replacement or temporary deployment. These cables usually need to be pre-wound onto the ship's cable winding structure for transportation and management. However, when existing maintenance vessels transport cables, their cable winding structures are mostly independently set single devices, lacking linkage and unified control mechanisms between the various winding mechanisms. When maintenance personnel need to wind or release multiple cables, they must operate different winding devices one by one to perform tensioning, positioning, and winding adjustments, making it impossible to achieve centralized control or synchronous adjustment.

[0004] Therefore, the applicant proposes a multi-functional maintenance vessel to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-functional maintenance vessel to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-functional maintenance vessel includes a vessel body. Cable storage mechanisms are provided on both sides of the top of the vessel body. Each cable storage mechanism includes several cabinets. A first winding roller and a second winding roller are respectively provided on both sides of the inner cavity of each cabinet. Displacement slots are provided on both sides of the outer wall of one side of each cabinet. An adjustment mechanism is provided on one side of each cabinet. The adjustment mechanism includes a housing. A lead screw is vertically installed in the inner cavity of the housing, and a threaded sleeve is fitted around the outer ring of the lead screw. Connecting rods are fixedly connected to both sides of the threaded sleeve. A flat plate is vertically installed in the inner cavity of the cabinet. One end of the connecting rod passes through the inner cavity of an adjacent displacement slot and is fixedly connected to one side of the flat plate. One end of the first winding roller is rotatably connected to one side of an adjacent flat plate via a rotating shaft.

[0008] Preferably, the cable storage mechanism further includes two support seats, and several fixed seats are arranged between the two support seats. One side of one of the support seats is provided with a long rod, and one end of the long rod passes through the side wall of the corresponding several fixed seats in sequence and is rotatably connected to one side of the other support seat through a rotating shaft.

[0009] Preferably, a plurality of bevel gears II are sleeved on the outer ring of the long rod and along the horizontal direction of the long rod. The bottom of the lead screw is fixedly connected to a bevel gear I through a bushing penetrating the bottom of the inner cavity of the adjacent outer shell. The outer ring of the bevel gear I is connected to the adjacent bevel gear II through a toothed meshing connection.

[0010] Preferably, a drive motor is fixedly connected to one side of one of the support seats, and the other end of the long rod is fixedly connected to the output shaft of the drive motor through a bushing passing through the side wall of the adjacent support seat.

[0011] Preferably, a connecting groove is provided on one side of the outer wall of the cabinet, a slider is slidably connected to the inner cavity of the connecting groove, a mounting plate is fixedly connected to one side of the slider, and a rotary motor is fixedly connected to one side of the mounting plate. The other end of the winding roller shaft passes through the side wall of the slider and the side wall of the mounting plate in sequence and is fixedly connected to the output shaft of the rotary motor.

[0012] Preferably, the two ends of the second winding roller are rotatably connected to the inner wall of the adjacent cabinet via a rotating shaft, the bottom of the cabinet is fixedly connected to the top of the maintenance vessel body, and the bottom of the support base and the bottom of the fixed base are both fixedly connected to the top of the maintenance vessel body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This solution achieves synchronous adjustment of multiple winding rollers by setting up an adjustment mechanism, solving the problem of low efficiency caused by the dispersed nature of traditional cable take-up structures and the need for individual operation. Only the drive motor needs to be controlled to uniformly adjust the position of all rollers, improving operational convenience and response speed. Winding roller one can be moved to the center of the cabinet for maximum winding, increasing cable storage capacity and adaptability. The rotary motor drives automatic cable take-up, and with the guidance of winding roller two, it ensures neat winding and uniform tension. After the cable is taken up, the adjustment mechanism pushes winding roller one close to winding roller two to clamp and fix the cable, preventing it from loosening during transportation. The entire cable storage mechanism is integrated into the maintenance vessel body, with a compact structure and efficient space utilization, improving the automation, safety, and reliability of offshore maintenance operations.

[0015] By coordinating the two winding rollers, effective guidance and stable winding are achieved during the cable winding process. The first winding roller, acting as the active winding shaft, winds the cable under the drive of a rotary motor. Its position can be moved within the cabinet via an adjustment mechanism to adapt to the needs of different winding stages. The second winding roller, acting as a fixed guide shaft, tensions and guides the cable, ensuring that the cable is neatly arranged and has uniform tension during winding, avoiding knots or overlaps. After winding is completed, the first winding roller can move closer to the second winding roller, and the two together clamp the outer layer of the wound cable, forming a mechanical limit. This effectively prevents the cable from loosening or scattering due to vibration during transportation or navigation, improving the safety and reliability of cable storage, while also increasing the automation level and overall efficiency of the cable winding operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cabinet structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the second structure of the winding roller of this utility model;

[0019] Figure 4 This is a schematic diagram of the outer shell structure of this utility model;

[0020] Figure 5 For the present utility model Figure 3 Enlarged view of point A in the middle.

[0021] In the diagram: 1. Main body of the maintenance vessel; 2. Cable storage mechanism; 201. Cabinet; 202. Support base; 203. Drive motor; 204. Long rod; 205. Fixed base; 206. Winding roller shaft one; 207. Connecting slot; 208. Rotary motor; 209. Winding roller shaft two; 210. Displacement slot; 3. Adjustment mechanism; 301. Outer shell; 302. Lead screw; 303. Screw sleeve; 304. Connecting rod; 305. Flat plate; 306. Bevel gear one; 307. Bevel gear two. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1:

[0026] Please see Figure 1 - Figure 5 As shown, a multi-functional maintenance vessel includes a vessel body 1. Cable storage mechanisms 2 are provided on both sides of the top of the vessel body 1. Each cable storage mechanism 2 includes several cabinets 201. A first winding roller 206 and a second winding roller 209 are respectively provided on both sides of the inner cavity of each cabinet 201. Displacement grooves 210 are provided on both sides of the outer wall of one side of each cabinet 201. An adjustment mechanism 3 is provided on one side of each cabinet 201. The adjustment mechanism 3 includes a housing 301. A lead screw 302 is vertically arranged in the inner cavity of the housing 301, and a threaded sleeve 303 is fitted around the outer ring of the lead screw 302. Connecting rods 304 are fixedly connected to both sides of the threaded sleeve 303. A flat plate 305 is vertically arranged in the inner cavity of the cabinet 201. One end of the connecting rod 304 passes through the inner cavity of an adjacent displacement groove 210 and is fixedly connected to one side of the flat plate 305. One end of the first winding roller 206 is rotatably connected to one side of an adjacent flat plate 305 via a rotating shaft.

[0027] The cable storage mechanism 2 also includes two support seats 202, and several fixed seats 205 are arranged between the two support seats 202. A long rod 204 is provided on one side of one of the support seats 202. One end of the long rod 204 passes through the side wall of the corresponding fixed seats 205 and is rotatably connected to one side of the other support seat 202 through a rotating shaft.

[0028] As can be seen from the above, when offshore wind farm operation and maintenance requires loading a large number of cables onto the multi-functional operation and maintenance vessel, the operation and maintenance personnel first start the drive motor 203 installed inside the cabinet 201. The output shaft of the drive motor 203 drives the long rod 204 connected to it to rotate. The long rod 204 serves as a power transmission shaft, and several bevel gears 307 are fixedly installed on its outer periphery. As the long rod 204 rotates, each bevel gear 307 rotates synchronously. Each bevel gear 307 meshes with the corresponding bevel gear 306, thereby transmitting the rotational power to the bevel gear 306. The bevel gear 306 is fixedly sleeved on one end of the lead screw 302, and the other end of the lead screw 302 is rotatably installed on the support base 202. Inside, as the bevel gear 306 rotates, the lead screw 302 rotates synchronously. A threaded sleeve 303 is threaded onto the lead screw 302. The sleeve 303 cannot rotate with the lead screw 302; it can only move axially along the lead screw 302. The sleeve 303 is fixedly connected to the end of the winding roller shaft 206 via a connecting rod 304. The connecting rod 304 passes through a displacement groove 210 on the side wall of the cabinet 201, allowing the winding roller shaft 206 to slide linearly within the cabinet 201. When the lead screw 302 rotates, the sleeve 303 drives the connecting rod 304 and the winding roller shaft 206 to move along the direction of the displacement groove 210, thereby gradually moving the winding roller shaft 206 from a position near the edge of the cabinet 201. The cable is adjusted to the middle position inside the cabinet 201. At this point, the first winding roller 206 is in the maximum space position for cable winding. Then, the maintenance personnel fix one end of the cable to be wound to the outer circumference of the first winding roller 206, and the other end is attached to the outer wall surface of the second winding roller 209 fixed on the other side of the cabinet 201. Next, the rotary motor 208 is started. The output shaft of the rotary motor 208 is connected to the first winding roller 206, driving the first winding roller 206 to rotate. The cable begins to wind under the rotation of the first winding roller 206. At the same time, the cable is guided and tensioned by the second winding roller 209, achieving orderly and neat winding of the cable. After winding is completed, if it is necessary to adjust the wound cable... To secure the cable and prevent it from loosening, the maintenance personnel restart the drive motor 203, causing the long rod 204 to rotate in the opposite direction. This, through the same bevel gear transmission path, drives the lead screw 302 to rotate in the opposite direction, causing the screw sleeve 303 to move the connecting rod 304 and the first winding roller shaft 206 towards the second winding roller shaft 209. This continues until the cable on the outer ring of the first winding roller shaft 206 is in contact with the outer wall of the second winding roller shaft 209 and is subjected to moderate compression, forming a clamping and fixing effect. This effectively prevents the cable from loosening or scattering due to vibration or shaking during transportation or navigation. The entire process is controlled by the drive motor 203 to synchronously displace multiple winding roller shafts 206, eliminating the need for individual adjustment of each take-up structure and simplifying the operation process.

[0029] This solution, through the setting of adjustment mechanism 3, achieves synchronous and unified adjustment of multiple winding rollers 206, solving the problems of inconvenience and low efficiency caused by the independent setting of the take-up structure and the need for individual adjustment in the existing technology. Maintenance personnel only need to control one drive motor 203 to complete the position adjustment of all winding rollers 206, significantly shortening preparation time and improving work efficiency. The winding rollers 206 can be moved to the center of the cabinet 201 for maximum capacity winding, meeting the storage needs of different cable lengths and quantities, and improving the adaptability and load-bearing capacity of the equipment. Automatic take-up is achieved by rotating the winding rollers 206 through the rotary motor 208, and with the guiding action of the second winding roller 209, the cable winding is more neat and the tension is uniform, improving the quality of take-up and unwinding. After winding is completed, the winding rollers 206 are driven again by the adjustment mechanism 3. The cable is brought closer to the winding roller 209 to clamp and fix the wound cable, effectively preventing loosening, scattering, or even falling off during transportation, thus improving the safety and reliability of cable storage. The overall structure integrates the cable storage mechanism 2 onto the main body 1 of the maintenance vessel. The components are compactly arranged, making full use of the internal space of the cabinet 201. This avoids the problems of large space occupation and chaotic layout of traditional decentralized cable winding devices, which is conducive to the optimized use of the internal space of the maintenance vessel. At the same time, the system has a stable structure and is easy to control, reducing the skill requirements of operators and the degree of manual intervention. It adapts to the needs of efficient and reliable operation and maintenance in complex marine environments, thereby effectively overcoming the technical problems of low operation efficiency, high safety risks, and difficulty in meeting the requirements of large-scale high-reliability operation and maintenance caused by defects such as inconsistent adjustment, cumbersome operation, limited storage capacity, and easy loosening of cables in the existing technology.

[0030] Example 2:

[0031] Please see Figure 1 - Figure 5 As shown, a number of bevel gears 307 are sleeved on the outer ring of the long rod 204 and along the horizontal direction of the long rod 204. The bottom of the lead screw 302 is fixedly connected to the bottom of the inner cavity of the adjacent outer shell 301 through the bushing. The outer ring of the bevel gear 306 and the adjacent bevel gear 307 are connected by meshing teeth.

[0032] One of the support seats 202 is fixedly connected to a drive motor 203 on one side, and the other end of the long rod 204 is fixedly connected to the output shaft of the drive motor 203 through a bushing through the side wall of the adjacent support seat 202.

[0033] A connecting groove 207 is provided on one side of the outer wall of the cabinet 201. A slider is slidably connected to the inner cavity of the connecting groove 207. A mounting plate is fixedly connected to one side of the slider, and a rotary motor 208 is fixedly connected to one side of the mounting plate. The other end of the winding roller shaft 206 passes through the side wall of the slider and the side wall of the mounting plate in sequence and is fixedly connected to the output shaft of the rotary motor 208.

[0034] The two ends of the winding roller 209 are rotatably connected to the inner wall of the adjacent cabinet 201 via a rotating shaft. The bottom of the cabinet 201 is fixedly connected to the top of the maintenance vessel body 1. The bottom of the support 202 and the bottom of the fixed seat 205 are both fixedly connected to the top of the maintenance vessel body 1.

[0035] As can be seen from the above, by setting several fixed seats 205 between the two support seats 202, and by having one end of the long rod 204 pass through the side wall of each fixed seat 205 and be rotatably connected to the other support seat 202 via a rotating shaft, when the long rod 204 rotates under the drive of the drive motor 203 during the working process, the multiple fixed seats 205 provide multi-point support for the long rod 204 along its length direction, effectively enhancing the structural stability and bending resistance of the long rod 204 during rotation, avoiding flexural deformation or vibration due to the large span of the long rod 204, thereby ensuring the smoothness and accuracy of the transmission between the second bevel gear 307 and the first bevel gear 306, achieving the effect of improving the operational reliability and service life of the overall adjustment mechanism 3. A series of bevel gears 307 are connected to the screw 302, and the bottom of the screw 302 is connected to a bevel gear 306 through a bushing passing through the bottom of the outer casing 301. The bevel gear 306 and the adjacent bevel gear 307 are connected by meshing teeth. In the working process, when the drive motor 203 drives the long rod 204 to rotate, the power is converted into vertical transmission through the meshing of the bevel gears 307 and the bevel gear 306, converting the horizontal rotation of the long rod 204 into the vertical coaxial rotation of the screw 302, which in turn drives the screw sleeve 303 to move along the axial direction of the screw 302. This achieves synchronous driving of multiple sets of screws 302, and enables multiple winding roller shafts 206 to be synchronously displaced with a single power source driving the motor 203, improving adjustment consistency and operating efficiency. A drive motor 203 is installed on one side of support 202, and the other end of the long rod 204 is fixedly connected to the output shaft of the drive motor 203 through a bushing passing through the side wall of support 202. During operation, the drive motor 203 directly outputs power to the long rod 204, forming a stable input end support and transmission connection, ensuring a short power transmission path, low loss, and fast response. Simultaneously, the bushing structure provides radial positioning and sealing protection, preventing external impurities from affecting transmission, thus improving transmission efficiency, enhancing system stability, and facilitating maintenance. A docking slot 207 is opened on the outer wall of one side of cabinet 201, and a slider is slidably connected to the inner cavity of the docking slot 207. The slider is connected to a mounting plate, and the mounting plate is connected to a rotary motor 208. The other end of the winding roller shaft 206 passes through the slider and... The mounting plate is fixedly connected to the output shaft of the rotary motor 208. During the workflow, when the adjusting mechanism 3 drives the first winding roller shaft 206 to move along the displacement groove 210, the rotary motor 208 slides synchronously with the slider in the docking groove 207, realizing the dynamic connection and positional adaptation between the rotary motor 208 and the first winding roller shaft 206. This ensures the continuity of the rotary drive function without hindering the axial adjustment of the first winding roller shaft 206, achieving the effect of maintaining stable power output while achieving adjustable position, and taking into account both winding and clamping functions. The two ends of the second winding roller shaft 209 are rotatably connected to the inner wall of the cabinet 201 through a rotating shaft. The bottom of the cabinet 201, the support base 202, and the fixed base 205 are all fixedly connected to the top of the maintenance vessel body 1.In the workflow, the winding roller 209 serves as a fixed guide roller, providing stable tension and guidance during cable winding. Its two ends are connected by rotating shafts to ensure smooth rotation and low friction. The entire cable storage mechanism 2 is firmly connected to the vessel body 1 via the cabinet 201 and supporting components, forming a stable installation foundation. This effectively resists vibrations and impacts during sea navigation, achieving the effects of enhancing the overall structural rigidity of the equipment, ensuring stable and reliable cable winding and unwinding, and improving the system's anti-interference capability.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional maintenance vessel, comprising a maintenance vessel body (1), characterized in that: The maintenance vessel body (1) is equipped with cable storage mechanisms (2) on both sides of its top. Each cable storage mechanism (2) includes several cabinets (201). A winding roller (206) and a winding roller (209) are respectively installed on both sides of the inner cavity of each cabinet (201). Displacement slots (210) are provided on both sides of the outer wall of one side of each cabinet (201). An adjustment mechanism (3) is provided on one side of each cabinet (201). The adjustment mechanism (3) includes a housing (301). A lead screw (302) is vertically installed in the inner cavity of the cabinet (201), and a threaded sleeve (303) is fitted around the outer ring of the lead screw (302). A connecting rod (304) is fixedly connected to both sides of the threaded sleeve (303). A flat plate (305) is vertically installed in the inner cavity of the cabinet (201). One end of the connecting rod (304) passes through the inner cavity of the adjacent displacement groove (210) and is fixedly connected to one side of the flat plate (305). One end of the winding roller (206) is rotatably connected to one side of the adjacent flat plate (305) through a rotating shaft.

2. The multi-functional maintenance vessel according to claim 1, characterized in that: The cable storage mechanism (2) also includes two support seats (202), and several fixed seats (205) are arranged between the two support seats (202). A long rod (204) is provided on one side of one of the support seats (202), and one end of the long rod (204) passes through the side wall of the corresponding several fixed seats (205) in sequence and is rotatably connected to one side of the other support seat (202) through a rotating shaft.

3. A multi-functional maintenance vessel according to claim 2, characterized in that: The outer ring of the long rod (204) and several bevel gears (307) are sleeved along the horizontal direction of the long rod (204). The bottom of the lead screw (302) is fixedly connected to the bottom of the inner cavity of the adjacent outer shell (301) through a bushing. The outer ring of the bevel gear (306) and the adjacent bevel gear (307) are connected by meshing teeth.

4. A multi-functional maintenance vessel according to claim 2, characterized in that: One of the support bases (202) is fixedly connected to a drive motor (203) on one side, and the other end of the long rod (204) is fixedly connected to the output shaft of the drive motor (203) through a bushing through the side wall of the adjacent support base (202).

5. A multi-functional maintenance vessel according to claim 1, characterized in that: The cabinet (201) has a connecting groove (207) on one side of its outer wall. A slider is slidably connected to the inner cavity of the connecting groove (207). A mounting plate is fixedly connected to one side of the slider, and a rotary motor (208) is fixedly connected to one side of the mounting plate. The other end of the winding roller shaft (206) passes through the side wall of the slider and the side wall of the mounting plate in sequence and is fixedly connected to the output shaft of the rotary motor (208).

6. A multi-functional maintenance vessel according to claim 4, characterized in that: The two ends of the winding roller (209) are rotatably connected to the inner wall of the adjacent cabinet (201) via a rotating shaft. The bottom of the cabinet (201) is fixedly connected to the top of the maintenance vessel body (1). The bottom of the support base (202) and the bottom of the fixed base (205) are both fixedly connected to the top of the maintenance vessel body (1).