An auxiliary device for transporting maintenance resources of an offshore wind turbine

Abstract

The present invention discloses an auxiliary device for transporting maintenance resources of an offshore wind turbine, which includes a base, an annular fixed pipe, a circumferential movement pipe, a vertical movement pipe, a transfer cabin and a hydraulic driver; the annular fixed pipe is fixedly installed on the base; the circumferential movement pipe is sleeved outside the annular fixed pipe, and the annular fixed pipe is slidably connected to the circumferential movement pipe, and the circumferential movement pipe is used for circumferential rotation; the vertical movement pipe is sleeved outside the circumferential movement pipe, and the circumferential movement pipe is slidably connected to the vertical movement pipe, and the vertical movement pipe is used for vertical movement; the transfer cabin is fixedly connected to the outer wall of the vertical movement pipe, and the transfer cabin is used for transporting maintenance resources; the hydraulic driver is connected to the vertical movement pipe, and the hydraulic driver is used to drive the vertical movement pipe to move vertically; the beneficial effect is to effectively eliminate the problems of horizontal distance difference and vertical height difference between the small maintenance ship and the target wind turbine platform in a practical, safe and effective manner.

Description

Technical Field

[0001] The present invention relates to the technology of maintenance and operation assistance devices for offshore wind turbines, and particularly to an auxiliary device for transporting maintenance and operation resources of offshore wind turbines. Background Art

[0002] Offshore wind power maintenance and operation is a key link during the operation of offshore wind farms. Since offshore wind turbines are installed in shallow or far seas, ships or helicopters are required to provide personnel and material transportation for the target wind turbines. Among them, the maintenance ship, as the most important accessibility equipment for wind farm maintenance and operation, can provide convenient conditions for the operation and maintenance of wind turbines in offshore wind farms. However, affected by the coupled action of wind, wave and current, when the maintenance ship approaches the offshore wind turbine, the six-degree-of-freedom motions such as heaving and pitching of the ship-end platform cause an annular interval and a vertical height difference between the maintenance ship and the wind turbine platform all the time, which will affect the boarding of maintenance personnel and the transportation of materials. Therefore, the auxiliary device for transporting maintenance and operation resources came into being.

[0003] Currently, the auxiliary devices for transporting maintenance and operation resources are divided into two categories. The first category of auxiliary devices for transporting maintenance and operation resources is the shipborne wave compensation boarding equipment applied to large maintenance ships. This kind of equipment has strong anti-wind and wave capabilities and high safety, but it needs to rely on large maintenance ships with high construction and maintenance costs, and has little promotion value for small maintenance ships; The second category of auxiliary devices for transporting maintenance and operation resources is applied to small maintenance ships. The ladder can only approach the target wind turbine by docking at the top of the maintenance ship and climb for transportation. However, under frequent collisions, this kind of equipment is easy to deform and break, bringing major safety hazards to personnel boarding. Therefore, the ladder, as an auxiliary device for transporting maintenance and operation resources, cannot effectively eliminate the annular interval difference and vertical height difference between the maintenance ship and the wind turbine platform.

[0004] In summary, it is very necessary to research an auxiliary device for transporting maintenance and operation resources of offshore wind turbines that can safely and effectively eliminate the annular interval difference and vertical height difference between the maintenance ship and the wind turbine platform for small maintenance ships. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary device for transporting maintenance and operation resources of offshore wind turbines to solve the problem that the existing auxiliary devices for transporting maintenance and operation resources cannot safely and effectively eliminate the horizontal interval difference and vertical height difference between the maintenance ship and the wind turbine platform for small maintenance ships.

[0006] To solve the above technical problems, the present invention provides an auxiliary device for transporting maintenance resources of an offshore wind turbine, which includes a base, an annular fixed pipe, a circumferential movement pipe, a vertical movement pipe, a transfer cabin, and a hydraulic driver; the annular fixed pipe is fixedly installed on the base; the circumferential movement pipe is sleeved outside the annular fixed pipe, and the annular fixed pipe is slidably connected to the circumferential movement pipe, and the circumferential movement pipe is used for circumferential rotation; the vertical movement pipe is sleeved outside the circumferential movement pipe, and the circumferential movement pipe is slidably connected to the vertical movement pipe, and the vertical movement pipe is used for vertical movement; the outer wall of the vertical movement pipe is fixedly connected with the transfer cabin, and the transfer cabin is used for transporting maintenance resources; the hydraulic driver is connected to the vertical movement pipe, and the hydraulic driver is used for driving the vertical movement pipe to move vertically.

[0007] In one embodiment, the annular fixed pipe includes an annular member and a vertical strengthening member; the axes of a plurality of the annular members are on the same axis, and the vertical strengthening member is connected and fixed between a plurality of adjacent annular members.

[0008] In one embodiment, the circumferential movement pipe includes a circumferential movement member and a circumferential strengthening member; a plurality of the circumferential movement members are arranged circumferentially along the axis of the annular fixed pipe; a plurality of the circumferential strengthening members are fixedly connected between a plurality of adjacent circumferential movement members.

[0009] In one embodiment, annular grooves are provided on the outer walls of a plurality of the annular members, and a plurality of circumferential rollers that can move circumferentially along the annular grooves are provided in the annular grooves; circumferential roller fitting grooves are provided on the inner walls of a plurality of the circumferential movement members, and a plurality of the circumferential rollers are slidably installed in the circumferential roller fitting grooves, and a plurality of the circumferential roller fitting grooves are arranged along the axis direction of the annular fixed pipe.

[0010] In one embodiment, the vertical movement pipe includes a plurality of vertical movement members; a plurality of the vertical movement members are arranged circumferentially along the axis of the annular fixed pipe; outer shell connection walls are provided on the side walls of a plurality of the vertical movement members, and the adjacent vertical movement members are connected and fixed by the outer shell connection walls.

[0011] In one embodiment, vertical sliding grooves are provided on the outer walls of a plurality of the circumferential movement members; vertical sliding bosses are provided on the inner walls of a plurality of the vertical movement members, and the vertical sliding bosses are slidably installed in the vertical sliding grooves; a plurality of the vertical sliding grooves and a plurality of the vertical sliding bosses are arranged along the axis direction of the annular fixed pipe.

[0012] In one embodiment, convex walls are provided on both sides of multiple vertical sliding grooves, vertical roller grooves are provided on the wall surfaces of the multiple convex walls, and multiple vertical rollers are provided in the vertical roller grooves; vertical roller fitting grooves are provided on both sides of the multiple vertical sliding bosses, and multiple vertical rollers are slidably installed in the multiple vertical roller fitting grooves; the multiple vertical roller grooves and the multiple vertical roller fitting grooves are arranged along the axis direction of the annular fixed pipe.

[0013] In one embodiment, multiple circumferential rollers, multiple circumferential motion members, and multiple vertical motion members are all arranged in a circumferential array around the axis of the annular fixed member at the same angle.

[0014] In one embodiment, the hydraulic drive includes a hydraulic pump, a lifting hydraulic rod, and a hydraulic pipeline; multiple hydraulic pumps are fixedly installed on the bottom plane of the base, multiple hydraulic pipelines are connected to multiple hydraulic pumps and one ends of multiple lifting hydraulic rods, and the other ends of the multiple hydraulic rods abut against the bottoms of the multiple vertical motion members.

[0015] In one embodiment, a fan docking channel is provided at the top of the transfer cabin, a transfer cabin channel is provided inside the transfer cabin, a vertical boarding channel is provided at the bottom of the transfer cabin, and the vertical boarding channel is vertically arranged with respect to the transfer cabin; multiple fixed rod mounting seats are provided on the outer wall of the vertical boarding channel, one ends of multiple vertical fixed rods are connected to the multiple fixed rod mounting seats, and the other ends of the multiple vertical fixed rods are connected to the bottom rod of the vertical fixed rod of the maintenance ship.

[0016] The beneficial effects of the present invention are as follows:

[0017] Due to the presence of the annular fixed pipe, during application, the annular fixed pipe is annularly and fixedly connected to the support column of the target wind turbine platform and can serve as the fixed base for the circumferential motion pipe and the vertical motion pipe;

[0018] Since the circumferential motion pipe is sleeved outside the annular fixed pipe, the annular fixed pipe is slidably connected to the circumferential motion pipe, and the circumferential motion pipe is used for circumferential rotation. During application, the circumferential motion pipe can perform circumferential rotation. When there is a horizontal spacing difference between the maintenance ship and the target wind turbine platform, the circumferential motion pipe can be rotated to make the transfer cabin above the maintenance ship, thereby eliminating the horizontal spacing difference between the maintenance ship and the target wind turbine platform;

[0019] Since the circumferential motion pipe is sleeved with the vertical motion pipe, and the circumferential motion pipe is slidably connected to the vertical motion pipe, and the vertical motion pipe is used for vertical movement, during application, the vertical motion pipe can move vertically. When there is a vertical height difference between the maintenance ship and the target wind turbine platform, the vertical motion pipe can be moved vertically, so as to eliminate the vertical height difference between the maintenance ship and the target wind turbine platform;

[0020] Since the transfer cabin is fixedly connected to the outer wall of the vertical motion pipe, during application, the transfer cabin can rotate left and right circumferentially and move up and down to the maintenance ship through the circumferential motion pipe and the vertical motion pipe.

[0021] Therefore, compared with the existing ladders applied to small maintenance ships, they are prone to breakage during the collision between the maintenance ship and the target wind turbine, and cannot safely and effectively eliminate the horizontal spacing difference and vertical height difference between the maintenance ship and the wind turbine platform.

[0022] In summary, the present invention effectively eliminates the problems of the horizontal spacing difference and vertical height difference between the maintenance ship and the wind turbine platform in the prior art for small maintenance ships. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for the implementation will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 is a schematic diagram of the overall structure provided by the preferred embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of the connection of the overall structure provided by the preferred embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of the structure of the annular fixed pipe provided by the preferred embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of the structure of the circumferential motion pipe provided by the preferred embodiment of the present invention;

[0028] Figure 5 is a schematic diagram of the structure of the vertical motion member provided by the preferred embodiment of the present invention;

[0029] Figure 6 is a schematic diagram of the connection structure between the annular fixed pipe and the circumferential motion pipe provided by the preferred embodiment of the present invention;

[0030] Figure 7It is a schematic structural diagram of the connection between the annular fixed pipe, the circumferential movement pipe and the vertical movement pipe provided by the preferred embodiment of the present invention;

[0031] Figure 8 It is a schematic structural diagram of the hydraulic pump provided by the preferred embodiment of the present invention;

[0032] Figure 9 It is a schematic structural diagram of the hydraulic pipeline provided by the preferred embodiment of the present invention;

[0033] Figure 10 It is a schematic structural diagram of the lifting hydraulic rod provided by the preferred embodiment of the present invention;

[0034] Figure 11 It is a schematic diagram of the transfer cabin structure provided by the preferred embodiment of the present invention Figure 1 ;

[0035] Figure 12 It is a schematic diagram of the transfer cabin structure provided by the preferred embodiment of the present invention Figure 2 ;

[0036] Figure 13 It is a schematic structural diagram of the material lifting motor provided by the preferred embodiment of the present invention;

[0037] Figure 14 It is a schematic structural diagram of the vertical ladder provided by the preferred embodiment of the present invention;

[0038] Figure 15 It is a schematic structural diagram of the fixed rod assembly support provided by the preferred embodiment of the present invention;

[0039] Figure 16 It is a schematic structural diagram of the vertical fixed rod provided by the preferred embodiment of the present invention;

[0040] Figure 17 It is a schematic structural diagram of the connection between the bottom rod and the passive buffer block provided by the preferred embodiment of the present invention;

[0041] Figure 18 It is a schematic structural diagram of the circumferential roller provided by the preferred embodiment of the present invention;

[0042] Figure 19 It is a schematic structural diagram of the vertical roller provided by the preferred embodiment of the present invention.

[0043] The reference numerals are as follows:

[0044] 1. Annular fixed pipe; 10. Annular fixing member; 100. First annular fixing member; 101. Second annular fixing member; 102. Third annular fixing member; 11. Vertical strengthening member; 12. Annular groove; 13. Circumferential roller;

[0045] 2. Circumferential motion pipe; 20. Circumferential motion component; 21. Circumferential strengthening component; 22. Circumferential roller fitting groove; 23. Vertical sliding groove; 24. Vertical roller groove; 25. Vertical roller; 250. Fixed pin;

[0046] 3. Vertical motion pipe; 30. Vertical motion component; 300. Outer shell connection wall; 301. Vertical sliding boss; 302. Vertical roller fitting groove;

[0047] 4. Hydraulic actuator; 40. Hydraulic pump; 400. Hydraulic pipeline docking port; 401. Pump body installation plane; 402. Pump body; 41. Hydraulic pipeline; 42. Lifting hydraulic rod; 420. Hydraulic piston rod; 421. Hydraulic cylinder;

[0048] 5. Transfer cabin; 50. Horizontal passage; 500. Material transfer passage; 501. Observation window; 502. Material lifting motor; 5020. Base; 5021. Generator set; 5022. Rotating groove; 51. Vertical boarding passage; 510. Vertical ladder; 511. Transition platform; 52. Fixed hull component; 520. Fixed rod assembly support; 5200. Support hole; 521. Vertical fixed rod; 5210. Plug pin; 5211. Assembly hole; 5212. Rod body; 522. Bottom rod; 523. Passive buffer block;

[0049] 6. Base. Specific embodiments

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0051] First, introduce the application scenario of the present invention. The offshore wind turbine operation and maintenance resource transfer auxiliary device is an offshore wind turbine operation and maintenance resource transfer device fixed to the tower base of an offshore wind turbine platform.

[0052] In the current existing technologies, there are mainly three major defects in the operation and maintenance resource transfer auxiliary device for small operation and maintenance ships. One is the problem of being unable to eliminate the horizontal interval difference between the operation and maintenance ship and the target wind turbine platform. The second is the problem of being unable to eliminate the vertical height difference between the operation and maintenance ship and the target wind turbine platform. The third is the problem of being unable to ensure safe and effective use.

[0053] To solve the above problems, as Figure 1 and Figure 2As shown in the figure, the present invention will improve the offshore wind turbine operation and maintenance resource transfer device through three technical features in different directions: First, a circumferential movement pipe 2 that can rotate circumferentially is provided, which can effectively eliminate the horizontal distance difference between the operation and maintenance ship and the target wind turbine platform; second, a vertical movement pipe 3 that can move vertically is provided, which can effectively eliminate the vertical height difference between the operation and maintenance ship and the target wind turbine platform; third, a transfer cabin 5 is provided, which provides a safe and effective transfer space.

[0054] Specifically, the overall structure of the offshore wind turbine operation and maintenance resource transfer auxiliary device provided by the present invention will be introduced exemplarily in combination with the accompanying drawings. Please refer to Figure 2 the overall structure schematic diagram shown in the figure, including a base 6, a circular fixed pipe 1, a circumferential movement pipe 2, a vertical movement pipe 3, a hydraulic actuator 4 and a transfer cabin 5.

[0055] As Figure 1 and Figure 2 shown in the figure, the circular fixed pipe 1 is fixedly installed on the support column of the target wind turbine platform, and can serve as the fixed base 6 for the circumferential movement pipe 2 and the vertical movement pipe 3. The circumferential movement pipe 2 is sleeved outside the circular fixed pipe 1, and the circular fixed pipe 1 is slidably connected to the circumferential movement pipe 2, and the circumferential movement pipe 2 is used for circumferential rotation; the vertical movement pipe 3 is sleeved outside the circumferential movement pipe 2, and the circumferential movement pipe 2 is slidably connected to the vertical movement pipe 3, and the vertical movement pipe 3 is used for vertical movement; the outer wall of the vertical movement pipe 3 is fixedly connected with a transfer cabin 5, and the transfer cabin 5 is used for transferring operation and maintenance resources; the hydraulic actuator 4 is connected to the vertical movement pipe 3, and the hydraulic actuator 4 is used to drive the vertical movement pipe 3 to move vertically.

[0056] Regarding the circular fixed pipe 1, when it is applied, it is fixedly connected to the support column of the target wind turbine platform and can serve as the fixed base 6 for the circumferential movement pipe 2 and the vertical movement pipe 3.

[0057] Regarding the circumferential movement pipe 2, the circumferential movement pipe 2 is sleeved outside the circular fixed pipe 1, and the circular fixed pipe 1 is slidably connected to the circumferential movement pipe 2. The circumferential movement pipe 2 is used for circumferential rotation along the axis of the circular fixed pipe 1. When there is a horizontal distance difference between the operation and maintenance ship and the target wind turbine platform, the circumferential movement pipe 2 is rotated so that the transfer cabin 5 is above the operation and maintenance ship, and the horizontal distance difference between the operation and maintenance ship and the target wind turbine platform can be eliminated.

[0058] Regarding the vertical movement pipe 3, the vertical movement pipe 3 is sleeved outside the circumferential movement pipe 2, and the circumferential movement pipe 2 is slidably connected to the vertical movement pipe 3. The vertical movement pipe 3 is used for vertical movement. When it is applied, the vertical movement pipe 3 can move vertically. When there is a vertical height difference between the operation and maintenance ship and the target wind turbine platform, the vertical movement pipe 3 can be moved vertically, so that the vertical height difference between the operation and maintenance ship and the target wind turbine platform can be eliminated.

[0059] Regarding the hydraulic actuator 4, the hydraulic actuator 4 is fixedly installed at the bottom of the base 6. During application, the hydraulic actuator 4 drives the vertical movement pipe 3 to move vertically up and down.

[0060] Regarding the transfer cabin 5, the transfer cabin 5 is fixedly connected to the outer wall of the vertical movement pipe 3. During application, the transfer cabin 5 can rotate circumferentially left and right and move up and down to the operation and maintenance ship through the circumferential movement pipe 2 and the vertical movement pipe 3.

[0061] In Figure 2 the overall structural connection shown above, as Figure 3 shown, the structure of the annular fixed pipe 1 in the embodiment of the present invention is shown. The circumferential fixed pipe is fixedly installed on the base 6. Specifically, the annular fixed pipe 1 includes three annular fixed members 10 and three vertical strengthening members 11.

[0062] Among them, as Figure 3 shown, the axes of the three annular fixed members 10 are on the same axis. The three annular fixed members 10 are the first annular fixed member 100, the second annular fixed member 101, and the third annular fixed member 102. The first annular fixed member 100 is fixedly connected to the base 5020. There are three first connection holes on the top surface of the first annular fixed member 100. There are three through holes on the wall surface of the second annular fixed member 101. There are three second connection holes on the bottom surface of the third annular fixed member 102. The first connection holes, the second connection holes, and the through holes are each arranged around the axis of the annular fixed member 10 at an interval of 120° in the circumferential direction on the wall surface of their respective fixed members. The vertical strengthening members 11 connect and fix the first connection holes, the second connection holes, and the through holes, so that the adjacent annular members are connected and fixed with the vertical strengthening members 11, and the arrangement positions of the vertical strengthening members 11 are also arranged at an interval of 120° in the circumferential direction.

[0063] It should be understood that the three annular fixed members 10 are all annularly fixed to the tower foundation of the offshore wind turbine platform, and three vertical strengthening members 11 are also fixedly connected between the structures of the three annular fixed members 10. The vertical strengthening members 11 are arranged at an interval of 120° in the circumferential direction to enhance the stability performance of the annular fixed pipe 1.

[0064] Among them, as Figure 3 and Figure 18As shown, annular grooves 12 are provided on the outer walls of the three annular fixing members 10. The three annular grooves 12 are all arranged in a circumferential annular manner around the axis of the annular fixing member 10. Five circumferential rollers 13 are provided in each of the three annular grooves 12. The circumferential rollers 13 can move in a circumferential direction along the annular grooves 12. The circumferential rollers 13 are arranged at intervals of 72° on the circumference of the annular groove 12 around the axis of the annular fixing member 10. A receiving module and a motion control module are provided inside the circumferential roller 13. The receiving module receives the radio frequency signal sent by the operation and maintenance personnel and transmits the signal to the motion control module to control the rotation of the multiple circumferential rollers 13. The circumferential rollers 13 are fixed to rotate in units of 72°, and the roller walls on both sides of the axis of the circumferential roller 13 form a frustum shape.

[0065] It should be understood that the three annular grooves and the multiple circumferential rollers 13 are used for slidably connecting the circumferential motion tube 2. The annular fixed tube 1 serves as a fixed structure and can provide a relatively stationary rotating tube surface for the circumferential motion tube 2, so that the circumferential motion tube 2 can rotate circumferentially around the axis of the annular fixed tube 1.

[0066] At Figure 2 On the basis of the connection of the overall structure shown and at Figure 6 On the basis of the connection between the annular fixed tube 1 and the circumferential motion tube 2 shown, as Figure 4 shows the structure of the circumferential motion tube 2 in the embodiment of the present invention. The circumferential motion tube 2 is sleeved outside the annular fixed tube 1, and the circumferential motion tube 2 is slidably connected to the annular fixed tube 1. Specifically, the circumferential motion tube 2 includes five circumferential motion members 20 and multiple circumferential strengthening members 21.

[0067] Among them, as Figure 4 shown, the five circumferential motion members 20 are arranged in a circumferential manner around the axis of the annular fixed tube 1. The five circumferential strengthening members 21 are arranged at intervals of 72° on the circumference of the circumferential motion members 20 around the axis of the annular fixing member 10. Ring-shaped roller fitting grooves 22 are provided on the inner walls of the five circumferential motion members 20. The five ring-shaped roller fitting grooves 22 are arranged along the axis direction of the annular fixed tube 1. The five ring-shaped roller fitting grooves 22 correspondingly slidably install the five circumferential rollers 13 in the three annular grooves 12 of the annular fixed tube 1.

[0068] It should be understood that the central axes of the five circumferential rollers 13 in each annular groove 12 should be respectively located in the corresponding ring-shaped roller fitting grooves 22. The five circumferential rollers 13 in each annular groove 12 are placed in the corresponding ring-shaped roller fitting grooves 22. Through such a setting, the circumferential motion tube 2 can realize a circumferential rotational motion with the annular fixed tube 1 in units of 72°.

[0069] Among them, as Figure 4 and Figure 19As shown, vertical sliding grooves 23 are provided on the outer walls of all five circumferential movement members 20. In the horizontal cross-section of the circumferential movement member 20, the cross-section of the vertical sliding groove 23 is symmetrically coincident with the cross-section of the circumferential roller fitting groove 22; convex walls are provided on both sides of the five vertical sliding grooves 23, vertical roller grooves 24 are provided on the walls of multiple convex walls, and three vertical rollers 25 are provided in each vertical roller groove 24. There are vertical rotary roller fixing pins 250 on both sides of the axis of the vertical roller 25, and they are installed and fixed inside the vertical rotary roller fitting groove through the vertical rotary roller fixing pins 250; the five vertical sliding grooves 23 and the ten vertical roller grooves 24 are arranged along the axis direction of the annular fixed pipe 1.

[0070] It should be understood that the five vertical sliding grooves 23, the ten vertical roller grooves 24 and the multiple vertical rollers 25 are all used for slidably connecting the vertical movement pipe 3. The circumferential movement pipe 2 can provide a pipe surface that is relatively stationary in the vertical direction for the vertical movement pipe 3, so that the vertical movement pipe 3 can move vertically up and down; both the vertical sliding groove 23 and the vertical roller groove 24 can enable the vertical movement pipe 3 to move vertically up and down on the outer wall of the circumferential movement pipe 2. In actual application, the vertical sliding groove 23 and the vertical roller groove 24 can be used in combination as in this embodiment, or the vertical sliding groove 23 and the vertical roller groove 24 can be used separately, and can be applied according to the actual needs of the user.

[0071] Among them, as Figure 4 shown, multiple circumferential strengthening members 21 are fixedly connected to the outer side walls of the five vertical sliding grooves 23. The multiple circumferential strengthening members 21 are distributed in three layers in the vertical direction. There are five circumferential strengthening members 21 in each layer. The five circumferential strengthening members 21 in each layer are arranged at intervals of 72° on the circumference of the circumferential movement member 20 around the axis of the annular fixed member 10.

[0072] It should be understood that multiple circumferential strengthening members 21 are fixedly connected between every two of the five circumferential movement members 20. The five circumferential strengthening members 21 in each layer are arranged at intervals of 72° on the circumference of the circumferential movement member 20 around the axis of the annular fixed member 10, which can strengthen the structural performance of the circumferential movement pipe and make the circumferential movement pipe more stably sleeved outside the annular fixed pipe 1.

[0073] In Figure 2 the overall structural connection foundation shown and on the connection foundation of the annular fixed pipe 1, the circumferential movement pipe 2 and the vertical movement pipe 3 shown in Figure 7 , as Figure 5 shown, the structure of the vertical movement pipe 3 in the embodiment of the present invention is shown. The vertical movement pipe 3 is sleeved outside the circumferential movement pipe, and the vertical movement pipe 3 is slidably connected to the circumferential movement pipe 2. Specifically, the vertical movement pipe 3 includes five vertical movement members 30.

[0074] Among them, as Figure 5As shown, five vertically moving members 30 are arranged circumferentially along the axis of the annular fixed pipe 1, and five circumferential strengthening members 21 are arranged at intervals of 72° around the axis of the annular fixed member 10 on the circumference of the circumferentially moving member 20; two housing connection walls 300 are provided on the side walls of all five vertically moving members 30, and the housing connection walls 300 connect and fix adjacent vertically moving members 30.

[0075] It should be understood that the five vertically moving members 30 are fixedly connected to each other through the housing connection walls 300, which can strengthen the structural performance of the vertically moving pipe and enable the vertically moving pipe to be more stably sleeved outside the circumferentially moving pipe.

[0076] Among them, as Figure 5 shown, vertical sliding bosses 301 and two vertical roller fitting grooves 302 are provided on the inner walls of all five vertically moving members 30. The five vertical sliding bosses 301 and the ten vertical roller fitting grooves 302 are all arranged along the axis direction of the annular fixed pipe 1. The five vertical sliding bosses 301 are slidably installed corresponding to the five vertical sliding grooves 23 of the circumferentially moving members 20 in the circumferentially moving pipe 2, and the ten vertical roller fitting grooves 302 are slidably installed corresponding to the ten vertical rollers 25 of the circumferentially moving members 20 in the circumferentially moving pipe 2.

[0077] It should be understood that each vertical sliding boss 301 should be aligned with the vertical sliding groove 23, and three vertical rollers 25 in each vertical rolling groove are placed in the corresponding vertical roller fitting groove 302. Through such an arrangement, the vertically moving pipe 3 can move up and down in the relative vertical direction with the circumferentially moving pipe 2 through the vertical sliding boss 301 and the vertical rollers 25.

[0078] Among them, as Figure 7 shown, multiple circumferential rollers 13, multiple circumferentially moving members 20 and multiple vertically moving members 30 are all arranged in a circumferential array around the axis of the annular fixed member 10 at the same angle.

[0079] It should be understood that the multiple circumferential rollers 13, multiple circumferentially moving members 20 and multiple vertically moving members 30 are arranged in the same plane in the section perpendicular to the tangent of the circumference of the annular fixed member 10. The arrangement of the multiple circumferential rollers 13 and the multiple circumferentially moving members 20 in the same plane in the section perpendicular to the tangent of the circumference of the annular fixed member 10 enables the circumferentially moving pipe 2 to rotate circumferentially, and the arrangement of the multiple circumferentially moving members 20 and the multiple vertically moving members 30 in the same plane in the section perpendicular to the tangent of the circumference of the annular fixed member 10 enables the vertically moving pipe 3 to move vertically up and down.

[0080] In Figure 2 the overall structural connection shown, as Figure 8 、 Figure 9 and Figure 10The structure of the hydraulic actuator 4 in the embodiment of the present invention is shown. The hydraulic actuator 4 is installed and fixed outside the vertical moving pipe. Specifically, the hydraulic actuator 4 includes a hydraulic pump 40, a hydraulic pipeline 41, and a lifting hydraulic rod 42.

[0081] Among them, as Figure 8 shown, the hydraulic pump 40 includes a hydraulic pipeline docking interface 400, a pump body installation plane 401, and a pump body 402. The axis of the hydraulic pipeline docking interface 400 is collinear with the central axis of the hydraulic pump 40. Five hydraulic pumps 40 are fixedly installed on the bottom plane of the base 5020. The five hydraulic pumps 40 are arranged at intervals of 72° on the bottom circumference of the base 5020 around the axis of the annular fixed pipe 1.

[0082] It should be understood that the five hydraulic pumps 40 and the multiple circumferential rollers 13 are respectively arranged on the same axis. Through this setting, the multiple annular rollers 13 drive the circumferential movement pipe 2 to perform circumferential movement in units of 72°. The circumferential movement pipe 2 drives the vertical movement pipe 3 to also perform circumferential movement in units of 72°. The five hydraulic pumps 40 and the multiple circumferential rollers 13 are arranged on the same axis, and can drive the vertical movement pipe 3 that rotates at a fixed 72° to move vertically up and down.

[0083] Among them, as Figure 9 shown, one end of the hydraulic pipeline 41 is connected to the hydraulic pipeline docking interface 400 of the hydraulic pump 40, and the other end of the hydraulic pipeline 41 is connected to the hydraulic rod hydraulic cylinder 421 of the lifting hydraulic rod 42.

[0084] Among them, as Figure 10 shown, the lifting hydraulic rod 42 includes a hydraulic piston rod 420 and a hydraulic rod pressure cylinder. The hydraulic piston rod 420 and the hydraulic rod pressure cylinder are coaxial. The cross-sectional shape of the upper part of the hydraulic piston rod 420 is the same as the cross-sectional shape of the vertical sliding groove 23. The other ends of the five hydraulic rods abut against the bottoms of the five vertical moving members 30, and the lower part of the hydraulic piston rod 420 is sealed and installed inside the hydraulic rod pressure cylinder.

[0085] It should be understood that by connecting the hydraulic pump 40 and the lifting hydraulic rod 42 through the hydraulic pipeline 41, and the lifting hydraulic rod 42 abuts against the bottoms of the five vertical moving members 30. Through this setting, the hydraulic actuator 4 can drive the vertical movement pipe 3 to move vertically up and down.

[0086] In Figure 2 the overall structural connection shown, as Figure 11 and Figure 12 shown, the structure of the transfer cabin 5 in the embodiment of the present invention is shown. The transfer cabin 5 is installed and fixed outside the vertical moving pipe. Specifically, the transfer cabin 5 includes a horizontal passage 50, a vertical boarding passage 51, and a fixed hull member 52.

[0087] Among them, as Figure 2As shown in the figure, one end of the transfer cabin 5 is fixedly installed outside the vertical moving pipe. A material transfer channel 500 is provided at the top of the horizontal channel 50, and the material transfer channel 500 is used to transfer materials onto the wind turbine platform; two observation windows 501 are provided on both side walls of the horizontal channel 50, and the observation windows 501 are used for users to observe the position of the transfer cabin 5.

[0088] It should be understood that the transfer cabin 5 is fixedly installed at one end outside the vertical moving pipe to keep it relatively stationary with the vertical moving pipe 3. The transfer cabin 5 can circumferentially move to the upper end of the operation and maintenance ship through the circumferential moving pipe 2. The transfer cabin 5 can move vertically up and down through the vertical moving pipe, so that its bottom can be connected to the operation and maintenance ship. Maintenance personnel and materials can enter the horizontal channel 50 of the transfer cabin 5 and reach the wind turbine platform through the material transfer channel 500 at the top of the horizontal channel 50. Through such a setting, compared with the common degree-of-freedom mechanism that realizes vertical movement through screw rotation, on the one hand, the setting of this technical solution can avoid the problem that the transfer cabin moves up and down while rotating, making it uncomfortable for maintenance personnel; on the other hand, the operation and maintenance ship can land on the leeward side, so as to achieve the purpose of transferring maintenance personnel and materials, and avoid potential safety accidents that may occur due to excessive sea wind when the transfer cabin rotates up and down.

[0089] Among them, as Figure 13 shown, a material lifting motor 502 is also fixedly installed on the ground of the horizontal channel 50. The material lifting motor 502 includes a base 5020, a generator set 5021 and a revolving groove 5022. The bottom of the base 5020 is fixedly connected to the ground of the horizontal channel 50. The bottom of the generator set 5021 is fixedly connected to the top of the base 5020. The rotating shaft of the generator set 5021 is fixedly connected to the revolving groove 5022. The revolving groove is connected with a traction rope, and the position of the revolving groove 5022 is aligned with the vertical boarding channel 51.

[0090] It should be understood that by setting the material lifting motor 502 on the ground of the horizontal channel 50 and aligning it with the vertical boarding channel 51, small operation and maintenance materials are vertically pulled through the traction rope of the revolving groove 5022 of the material lifting motor 502, so as to complete the transfer of materials from the operation and maintenance ship to the horizontal channel 50 of the transfer cabin 5.

[0091] Among them, as Figure 14 shown, the vertical boarding channel 51 is fixedly installed at the bottom of the transfer cabin 5 and is connected to the transfer cabin 5 in a through manner. The vertical boarding channel 51 is vertically arranged with the horizontal channel 50 of the cabin; a vertical ladder 510 is installed in the vertical boarding channel 51. A transition platform 511 of the vertical ladder 510 is provided at the top of the vertical ladder 510. The transition platform 511 of the vertical ladder 510 is fixedly connected to the ground of the horizontal channel 50. The climbing plane of the vertical ladder 510 is parallel to the axis of the vertical boarding channel 51.

[0092] It should be understood that through the vertical ladder 510 of the vertical boarding passage 51, the operation and maintenance personnel can board from the operation and maintenance ship to the horizontal passage 50 of the transfer cabin 5.

[0093] Among them, as Figure 14 , Figure 15 , Figure 16 and Figure 17 shown, the fixed hull member 52 is fixedly installed on the outer wall of the vertical boarding passage 51. The fixed hull member 52 includes two fixed rod assembly supports 520, two vertical fixed rods 521 and two bottom rods 522; at the top of the two vertical fixed rods 521, there are top rod assembly pins 5210, and the top rod assembly pins 5210 are coaxial with the support holes. The two ends of the top rod assembly pins 5210 are installed in the support holes of the fixed rod assembly supports 520. At the bottom of the rod body 5212 of the vertical fixed rod 521, there is a bottom rod 522 assembly hole 5211, which is coaxial with the bottom rod 522, and the circumferential diameter of the bottom rod 522 is the same as the diameter of the bottom rod 522 assembly hole 5211; at the lower ends of the two bottom rods 522, there are two pairs of passive buffer blocks 523, and the two pairs of passive buffer blocks 523 are symmetrically distributed on both sides of the axis of the vertical fixed rod 521.

[0094] It should be understood that the two pairs of passive buffer blocks 523 are used to connect the operation and maintenance ship, so that the operation and maintenance ship is fixed to the offshore wind power operation and maintenance resource transfer auxiliary device, so that the operation and maintenance personnel and operation and maintenance materials can enter the transfer cabin 5 from the vertical boarding passage 51. The transfer cabin 5 rises, so that the operation and maintenance personnel and operation and maintenance materials can reach the wind turbine platform.

[0095] The specific working principle of the present invention will be described below:

[0096] When the maintenance ship approaches the target wind turbine, the relative height and relative horizontal angle between the maintenance ship and the transfer cabin 5 are adjusted by controlling the hydraulic pump 40 and the circumferential rollers 13. When the transfer cabin rotates above the hull through the circumferential rollers 13, the vertical height is adjusted by controlling the hydraulic pump 40 until it reaches the reach range of the vertical ladder 510 of the transfer cabin 5 to eliminate the relative movement in the horizontal direction. At the same time, the passive buffer block 523 at the lower end of the bottom rod 522 of the fixed hull member 52 abuts against the port and starboard sides of the maintenance ship to reduce the relative movement in the vertical direction. The horizontal circumferential rotation and vertical movement functions of the transfer cabin 5 can provide passive motion compensation for the maintenance ship. The maintenance personnel climb onto the transition platform 511 of the vertical ladder 510 via the vertical ladder 510 in the vertical boarding passage 51 of the transfer cabin 5, and tie the towing rope to the circumferential groove 5022 of the material lifting motor 502. The small maintenance materials at the other end of the rope are lifted to the horizontal passage 50 by the rotation of the material lifting motor 502, thus completing the transfer of materials from the maintenance ship to the wind turbine end. Subsequently, the maintenance personnel and the maintenance materials reach the offshore wind turbine platform through the material transfer passage 500 at the top of the transfer cabin. During this process, the distance between the transfer cabin 5 and the offshore wind turbine platform can continue to be adjusted by the hydraulic pump 40 until the boarding height is reached, thereby transferring the safe and efficient transfer ability of the entire maintenance human and material resources from the supply of traditional professional maintenance ships to the self-supply of the target offshore wind turbine.

[0097] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. An auxiliary device for transporting maintenance resources of an offshore wind turbine, characterized in that it includes a base, a circular fixed pipe, a circumferential movement pipe, a vertical movement pipe, a transfer cabin and a hydraulic driver; The circular fixed pipe is fixedly installed on the base; The circumferential movement pipe is sleeved outside the circular fixed pipe, the circular fixed pipe is slidably connected to the circumferential movement pipe, and the circumferential movement pipe is used for circumferential rotation; The vertical movement pipe is sleeved outside the circumferential movement pipe, the circumferential movement pipe is slidably connected to the vertical movement pipe, and the vertical movement pipe is used for vertical movement; The outer wall of the vertical movement pipe is fixedly connected with the transfer cabin, and the transfer cabin is used for transporting maintenance resources; The hydraulic driver is connected to the vertical movement pipe, and the hydraulic driver is used to drive the vertical movement pipe to move vertically.

2. The auxiliary device for transporting maintenance resources of an offshore wind turbine according to claim 1, characterized in that the circular fixed pipe includes a circular member and a vertical strengthening member; The axes of a plurality of the circular members are on the same axis, and the adjacent circular members are connected and fixed with the vertical strengthening member.

3. The auxiliary device for transporting maintenance resources of an offshore wind turbine according to claim 2, characterized in that the circumferential movement pipe includes a circumferential movement member and a circumferential strengthening member; A plurality of the circumferential movement members are arranged circumferentially along the axis of the circular fixed pipe; a plurality of adjacent circumferential movement members are fixedly connected with a plurality of the circumferential strengthening members.

4. The auxiliary device for transporting maintenance resources of an offshore wind turbine according to claim 3, characterized in that Circular grooves are provided on the outer walls of a plurality of the circular members, and a plurality of circumferential rollers that can move circumferentially along the circular grooves are provided in the circular grooves; Circumferential roller adaptor grooves are provided on the inner walls of a plurality of the circumferential movement members, and a plurality of the circumferential rollers are slidably installed in the plurality of circumferential roller adaptor grooves, and the plurality of circumferential roller adaptor grooves are arranged along the axis direction of the circular fixed pipe.

5. The auxiliary device for transporting maintenance resources of an offshore wind turbine according to claim 4, characterized in that the vertical movement pipe includes a plurality of vertical movement members; A plurality of the vertical movement members are arranged circumferentially along the axis of the circular fixed pipe; shell connection walls are provided on the side walls of a plurality of the vertical movement members, and the adjacent vertical movement members are connected and fixed by the shell connection walls.

6. The auxiliary device for transporting maintenance resources of an offshore wind turbine according to claim 5, characterized in that Vertical sliding grooves are provided on the outer walls of a plurality of the circumferential movement members; Vertical sliding bosses are provided on the inner walls of a plurality of the vertical movement members, and the vertical sliding bosses are slidably installed in the vertical sliding grooves; the plurality of vertical sliding grooves and the plurality of vertical sliding bosses are arranged along the axis direction of the circular fixed pipe.

7. The auxiliary device for transporting maintenance resources of an offshore wind turbine according to claim 6, characterized in that Convex walls are provided on both sides of a plurality of the vertical sliding grooves, vertical roller grooves are provided on the wall surfaces of the convex walls, and a plurality of vertical rollers are provided in the vertical roller grooves; On both sides of multiple said vertical sliding bosses, there are vertical roller fitting grooves, and multiple said vertical rollers are slidably installed in multiple said vertical roller fitting grooves; multiple said vertical roller grooves and multiple said vertical roller fitting grooves are arranged along the axis direction of the annular fixed pipe.

8. The auxiliary device for transporting maintenance resources of an offshore wind turbine according to claim 6, wherein Multiple said circumferential rollers, multiple said circumferential movement members, and multiple said vertical movement members are all arranged in a circumferential array around the axis of the annular fixed member at the same angle.

9. The auxiliary device for transporting maintenance resources of an offshore wind turbine according to claim 5, wherein The hydraulic drive includes a hydraulic pump, a lifting hydraulic rod, and a hydraulic pipeline; Multiple said hydraulic pumps are fixedly installed on the bottom plane of the base, multiple said hydraulic pipelines are connected to multiple said hydraulic pumps and one end of multiple said lifting hydraulic rods, and the other ends of multiple said lifting hydraulic rods abut against the bottoms of multiple said vertical movement members.

10. The auxiliary device for transporting maintenance resources of an offshore wind turbine according to claim 1, wherein A wind turbine docking channel is provided at the top of the transfer cabin, a transfer cabin channel is provided inside the transfer cabin, a vertical boarding channel is provided at the bottom of the transfer cabin, and the vertical boarding channel is arranged perpendicular to the transfer cabin; A plurality of fixed rod assembly supports are provided on the outer wall of the vertical boarding channel, one ends of a plurality of vertical fixed rods are connected to a plurality of fixed rod assembly supports, and the other ends of a plurality of vertical fixed rods are connected to the bottom rods of the vertical fixed rods of the maintenance ship.

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