Auxiliary embarkation device for offshore wind power operation and maintenance ship

Abstract

The utility model discloses an auxiliary embarkation device for an offshore wind power operation and maintenance ship, belongs to the technical field of auxiliary embarkation, and aims to solve the problems that in the prior art, an auxiliary embarkation device is not provided with a displacement compensation mechanism, and when the horizontal distance changes, the auxiliary embarkation device is prone to being damaged. Comprising a connecting base, a first motor is installed in the connecting base and connected with a rotating part, the rotating part is in rotating contact with the connecting base, a hydraulic cylinder is embedded in the upper end of the rotating part, a displacement compensation assembly is installed at the upper end of the hydraulic cylinder, and a fixing plate is installed at the upper end of the displacement compensation assembly. According to the auxiliary embarkation device for the offshore wind power operation and maintenance ship, through arrangement of a displacement compensation assembly, when the swaying phenomenon occurs, the horizontal distance between the operation and maintenance ship and a wind power foundation is elastically changed, so that the auxiliary embarkation device is prevented from being damaged by pulling, the service life is prolonged, through arrangement of a third motor, a bidirectional lead screw and a clamping ring, a fixing rod is conveniently clamped, and the practicability is high. And the operation and maintenance ship can be conveniently connected with the wind power foundation.

Description

Technical Field

[0001] This utility model belongs to the field of assisted boarding technology, specifically relating to an assisted boarding device for offshore wind power operation and maintenance vessels. Background Technology

[0002] Wind turbine maintenance vessels are specialized vessels used for the operation and maintenance of offshore wind turbine generators. They must have good maneuverability in waves to ensure stability and comfort during navigation. They must be able to berth at low speed and accurately at the foundation of the wind turbine generator to avoid causing significant impact on the foundation and maintain continuous contact with the foundation, thereby safely and conveniently transporting personnel and equipment to the wind turbine generator. Assisted boarding devices are required when entering the wind turbine generator from the wind turbine maintenance vessel.

[0003] When an offshore wind power maintenance vessel comes into contact with the foundation of a wind power facility, waves in the seawater cause swaying (swaying is the reciprocating movement of a vessel in the horizontal direction), which alters the horizontal distance between the vessel and the foundation. Existing auxiliary boarding devices lack displacement compensation mechanisms, making them susceptible to damage when the horizontal distance changes. Therefore, a technical measure is proposed to address the problem of existing auxiliary boarding devices lacking displacement compensation mechanisms and being easily damaged when the horizontal distance changes. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an auxiliary boarding device for offshore wind power operation and maintenance vessels, which aims to solve the problem that the existing auxiliary boarding devices lack a displacement compensation mechanism and are easily damaged when the horizontal distance changes.

[0006] (2) Technical solution

[0007] To address the aforementioned technical problems, this utility model provides an auxiliary boarding device for offshore wind power maintenance vessels, comprising a connecting base, a first motor installed within the connecting base, a rotating part connected to the first motor, the rotating part rotatably contacting the connecting base, a hydraulic cylinder embedded at the upper end of the rotating part, a displacement compensation component installed at the upper end of the hydraulic cylinder, and a fixing plate installed at the upper end of the displacement compensation component. Thanks to the displacement compensation component, in the event of swaying, the horizontal distance between the maintenance vessel and the wind turbine foundation is elastically changed, thereby preventing damage to the auxiliary boarding device and extending its service life.

[0008] Furthermore, a second motor is installed at the middle position of the side of the fixing plate, a limit groove is formed in the fixing plate, the second motor is connected to a screw, the screw is threadedly connected to a slider, and the slider is slidably adapted to the limit groove.

[0009] Furthermore, a telescopic plate is connected to the upper surface of the slider, and guardrails are installed on the upper surface of the telescopic plate and the fixed plate.

[0010] Furthermore, a third motor is installed on the side of the telescopic plate away from the slider. The third motor is connected to a bidirectional lead screw, which is threaded with two sets of clamping rings. The telescopic plate has grooves that fit the clamping rings.

[0011] Furthermore, the displacement compensation component includes a housing, the upper surface of which is fixedly connected to one end of the lower part of the fixing plate, and a sliding groove is provided on the lower surface of the housing.

[0012] Furthermore, the slide is slidably connected to a movable block, side plates are installed on both sides of the movable block, springs are installed at both ends of the side plates, the other end of the springs is fixedly installed inside the box, the movable block is slidably connected to a slide rod, the slide rod is fixedly installed inside the box, and a connecting plate is connected to the lower part of the movable block.

[0013] Furthermore, the connecting plate slides in contact with the lower surface of the box, and the middle position of the lower surface of the connecting plate is fixedly connected to the upper end of the hydraulic cylinder.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention, through the arrangement of a second motor, a slider, and a screw, facilitates the movement of the telescopic plate, thereby easily changing the length of the boarding device. Activating the second motor drives the slider to move, and the movement of the slider drives the telescopic plate to move, thus changing the length of the boarding device.

[0017] The setup of a third motor, a two-way lead screw, and a clamping ring facilitates the clamping and fixing of the rod, making it easy to connect the maintenance vessel to the wind turbine foundation. Activating the third motor drives the clamping ring to clamp the rod, thus completing the connection between the maintenance vessel and the wind turbine foundation.

[0018] By setting up the displacement compensation component, the horizontal distance between the maintenance vessel and the wind turbine foundation is flexibly changed when swaying occurs, thereby preventing damage to the auxiliary boarding device and extending its service life. When the maintenance vessel sways, it pulls the connecting seat, rotating part, and hydraulic cylinder to move horizontally back and forth. The reciprocating horizontal movement of the hydraulic cylinder drives the connecting plate to move horizontally back and forth. The reciprocating horizontal movement of the connecting plate drives the moving block to move horizontally back and forth along the slide rod. The reciprocating horizontal movement of the moving block drives the side plate to move horizontally back and forth. The reciprocating horizontal movement of the side plate compresses the spring back and forth, thus completing the displacement compensation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a top view of the fixed plate structure.

[0022] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 This is a schematic diagram of the displacement compensation component in its separated state.

[0024] Figure 5 This is a schematic diagram of the box structure viewed from below.

[0025] The labels in the attached diagram are as follows: 1. Connecting seat; 2. Displacement compensation component; 3. First motor; 4. Rotating part; 5. Hydraulic cylinder; 6. Fixed plate; 7. Telescopic plate; 8. Guardrail; 9. Second motor; 10. Limiting groove; 11. Slider; 12. Third motor; 13. Clamping ring; 14. Two-way lead screw; 15. Screw; 201. Box body; 202. Moving block; 203. Side plate; 204. Slide rod; 205. Spring; 206. Connecting plate; 207. Slide groove. Detailed Implementation

[0026] 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.

[0027] This specific embodiment is an auxiliary boarding device for offshore wind power operation and maintenance vessels, and its structural schematic diagram is shown below. Figure 1 , Figure 2 , Figure 3As shown, the system includes a connecting base 1, within which a first motor 3 is installed. The first motor 3 is connected to a rotating part 4, which rotatably contacts the connecting base 1. A hydraulic cylinder 5 is embedded at the upper end of the rotating part 4, and a displacement compensation component 2 is installed at the upper end of the hydraulic cylinder 5. A fixing plate 6 is installed at the upper end of the displacement compensation component 2. A second motor 9 is installed at the middle of the side of the fixing plate 6. A limit groove 10 is formed in the fixing plate 6. The second motor 9 is connected to a screw 15, which is threadedly connected to a slider 11. The slider 11 slides and adapts to the limit groove 10. A telescopic plate 7 is connected to the upper surface of the slider 11. Guardrails 8 are installed on the upper surfaces of the telescopic plate 7 and the fixing plate 6. A third motor 12 is installed on the side of the telescopic plate 7 away from the slider 11. The third motor 12 is connected to a bidirectional lead screw 14, which is threadedly connected to two sets of clamping rings 13. The telescopic plate 7 has grooves that adapt to the clamping rings 13. During offshore wind power maintenance, the first motor 3 is started to drive the rotating part 4 to rotate, causing the fixed plate 6 to face the wind power foundation (the connecting seat 1 is fixedly installed on the maintenance vessel). Then, the hydraulic cylinder 5 is started to move the fixed plate 6 and the telescopic plate 7 upward, so that the fixed plate 6 and the telescopic plate 7 are matched with the height of the wind power foundation. Then, the second motor 9 is started to drive the screw 15 to rotate. The rotation of the screw 15 drives the slider 11 to move towards the wind power foundation, completing the extension and retraction. During the extension and retraction, it is aligned with the fixed rod on the wind power foundation. Then, the third motor 12 is started to drive the bidirectional lead screw 14 to rotate. The rotation of the bidirectional lead screw 14 drives the clamping rings 13 to move closer together, so that the clamping rings 13 clamp the fixed rod, completing the connection. Then, personnel and tools enter the wind power facility through the fixed plate 6 and the telescopic plate 7. When there are waves in the sea, the horizontal distance between the maintenance vessel and the wind power foundation changes, and the displacement compensation component 2 plays a role.

[0028] Reference Figure 1 , Figure 4 , Figure 5As shown, the displacement compensation component 2 includes a housing 201. The upper surface of the housing 201 is fixedly connected to one end of the lower part of the fixed plate 6. A groove 207 is provided on the lower surface of the housing 201. A moving block 202 is slidably connected to the groove 207. Side plates 203 are installed on both sides of the moving block 202. Springs 205 are installed at both ends of the side plates 203. The other end of the springs 205 is fixedly installed inside the housing 201. A sliding rod 204 is slidably connected to the moving block 202. The sliding rod 204 is fixedly installed inside the housing 201. A connecting plate 206 is connected to the lower part of the moving block 202. The connecting plate 206 slides in contact with the lower surface of the housing 201. The middle position of the lower surface of the connecting plate 206 is fixedly connected to the upper end of the hydraulic cylinder 5. When the maintenance vessel experiences a swaying phenomenon (when the wave is perpendicular to the long side of the hull and contacts the hull), the maintenance vessel experiences a swaying phenomenon. When a wave contacts the hull parallel to its long side, the maintenance vessel experiences heaving, meaning it moves up and down. The top of the fixed rod is set to a T-shape larger than the rod body, and the clamping ring 13 is adapted to the fixed rod body. During heaving, the clamping ring 13 moves up and down along the fixed rod body to compensate for vertical displacement. When the wave contacts the maintenance vessel in other directions, the maintenance vessel will simultaneously experience heaving and swaying. The maintenance vessel will pull the connecting seat 1, rotating part 4, and hydraulic cylinder 5 to move horizontally back and forth. The horizontal reciprocating movement of hydraulic cylinder 5 drives the connecting plate 206 to move horizontally back and forth. The horizontal reciprocating movement of connecting plate 206 drives the moving block 202 to move horizontally back and forth along the sliding rod 204. The horizontal reciprocating movement of moving block 202 drives the side plate 203 to move horizontally back and forth. The horizontal reciprocating movement of side plate 203 compresses the spring 205, completing displacement compensation.

[0029] Working principle: During maintenance of offshore wind power, the first motor 3 is started, driving the rotating part 4 to rotate and move the fixed plate 6 toward the wind turbine foundation (the connecting seat 1 is fixedly installed on the maintenance vessel). Then, the hydraulic cylinder 5 is started, driving the fixed plate 6 and the telescopic plate 7 to move upward, so that the fixed plate 6 and the telescopic plate 7 are matched with the height of the wind turbine foundation. Then, the second motor 9 is started, driving the screw 15 to rotate. The rotation of the screw 15 drives the slider 11 to move toward the wind turbine foundation, completing the extension and retraction. During the extension and retraction, it is aligned with the fixed rod on the wind turbine foundation. Then, the third motor 12 is started, driving the bidirectional lead screw 14 to rotate. Rotation causes the clamping rings 13 to move closer together, thereby clamping the fixed rod and completing the connection. Then, personnel and tools enter the wind power facility through the fixed plate 6 and the telescopic plate 7. When there are waves in the sea, the horizontal distance between the maintenance vessel and the wind power foundation changes. The displacement compensation component 2 plays a role. The second motor 9, slider 11 and screw 15 facilitate the movement of the telescopic plate 7, thereby facilitating the change of the length of the boarding device. The third motor 12, bidirectional lead screw 14 and clamping rings 13 facilitate the clamping of the fixed rod, facilitating the connection between the maintenance vessel and the wind power foundation.

[0030] The specific working principle of displacement compensation component 2 is as follows: When the maintenance vessel experiences swaying (swaying occurs when the wave is perpendicular to the long side of the hull and contacts the hull, and heaving occurs when the wave is parallel to the long side of the hull and contacts the hull, i.e., the maintenance vessel moves up and down), the top of the fixed rod is set to a T-shape larger than the rod body, and the clamping ring 13 is adapted to the fixed rod body. During heaving, the clamping ring 13 moves up and down along the fixed rod body to complete the vertical displacement compensation. When the wave contacts the maintenance vessel in other directions, the maintenance vessel will simultaneously experience heaving and swaying), the maintenance vessel will pull the connecting seat 1. Rotating part 4 and hydraulic cylinder 5 move horizontally reciprocatingly. The reciprocating horizontal movement of hydraulic cylinder 5 drives connecting plate 206 to move horizontally reciprocatingly. The reciprocating horizontal movement of connecting plate 206 drives moving block 202 to move horizontally reciprocatingly along slide rod 204. The reciprocating horizontal movement of moving block 202 drives side plate 203 to move horizontally reciprocatingly. The reciprocating horizontal movement of side plate 203 compresses spring 205 back and forth, completing displacement compensation. With the setting of displacement compensation component 2, when swaying occurs, the horizontal distance between the maintenance vessel and the wind power foundation is elastically changed, thereby preventing damage to the auxiliary boarding device and improving its service life.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary boarding device for offshore wind farm service vessels, comprising a connection seat (1), characterized in that, The connecting seat (1) is equipped with a first motor (3), the first motor (3) is connected to a rotating part (4), the rotating part (4) is in rotatable contact with the connecting seat (1), a hydraulic cylinder (5) is embedded in the upper end of the rotating part (4), a displacement compensation component (2) is installed on the upper end of the hydraulic cylinder (5), and a fixing plate (6) is installed on the upper end of the displacement compensation component (2).

2. The auxiliary boarding device for offshore wind farm maintenance vessel according to claim 1, characterized in that, A second motor (9) is installed in the middle of the side of the fixing plate (6). A limiting groove (10) is opened in the fixing plate (6). The second motor (9) is connected to a screw (15). The screw (15) is threadedly connected to a slider (11). The slider (11) is slidably adapted to the limiting groove (10).

3. The auxiliary boarding device for offshore wind power operation and maintenance vessels according to claim 2, characterized in that, The upper surface of the slider (11) is connected to a telescopic plate (7), and guardrails (8) are installed on the upper surfaces of the telescopic plate (7) and the fixed plate (6).

4. The auxiliary boarding device for offshore wind power operation and maintenance vessels according to claim 3, characterized in that, A third motor (12) is installed on the side of the telescopic plate (7) away from the slider (11). The third motor (12) is connected to a two-way lead screw (14). The two-way lead screw (14) is threadedly connected to two sets of clamping rings (13). The telescopic plate (7) has grooves that are adapted to the clamping rings (13).

5. The auxiliary boarding device for offshore wind farm maintenance vessel according to claim 1, characterized in that, The displacement compensation component (2) includes a box (201), the upper surface of which is fixedly connected to one end of the lower part of the fixing plate (6), and a sliding groove (207) is provided on the lower surface of the box (201).

6. The auxiliary boarding device for offshore wind farm maintenance vessel according to claim 5, characterized in that, The slide groove (207) is slidably connected to a moving block (202). Side plates (203) are installed on both sides of the moving block (202). Springs (205) are installed at both ends of the side plates (203). The other end of the springs (205) is fixedly installed inside the box body (201). The moving block (202) is slidably connected to a slide rod (204). The slide rod (204) is fixedly installed inside the box body (201). A connecting plate (206) is connected to the lower part of the moving block (202).

7. The auxiliary boarding device for offshore wind farm maintenance vessel according to claim 6, characterized in that, The connecting plate (206) slides in contact with the lower surface of the box (201), and the middle position of the lower surface of the connecting plate (206) is fixedly connected to the upper end of the hydraulic cylinder (5).

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