A multi-degree-of-freedom maintenance platform for offshore drilling platforms

Abstract

This utility model provides a multi-degree-of-freedom maintenance platform for offshore drilling platforms, relating to the field of offshore drilling platforms. It primarily addresses the problems of limited operation and compromised worker safety in existing maintenance platforms. This multi-degree-of-freedom maintenance platform mainly consists of a frame, sliding plate, rotating shaft, rocker arm, suspended platform, and winch. The frame can move horizontally along the edge of the offshore drilling platform; the sliding plate can move vertically along the frame; the rotating shaft is mounted on the sliding plate and can swing horizontally around a vertical line; the rocker arm is hinged to the rotating shaft and can swing vertically in the vertical plane; the suspended platform is horizontally hinged to the end of the rocker arm; and the winch is mounted on the rotating shaft and connected to the suspended platform via a wire rope for adjusting the platform's pitch angle. This utility model, through the coordinated movement of its components, gives the suspended platform five degrees of freedom, significantly increasing its flexibility. Maintenance personnel are no longer limited by operating position and angle when performing drilling maintenance, allowing for safer maintenance operations.

Description

Technical Field

[0001] This utility model is specifically a multi-degree-of-freedom maintenance platform for offshore drilling platforms, relating to the field of offshore drilling platforms. Background Technology

[0002] Offshore drilling platforms have drilling rigs that extend into the sea. If the drilling rigs malfunction, workers need to use maintenance gondolas to repair them. Existing maintenance gondolas have a structure similar to elevators, which can only move up and down. This severely limits maintenance operations and also fails to guarantee the safety of workers. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model discloses a multi-degree-of-freedom maintenance platform for offshore drilling platforms, adopting the following technical solution:

[0004] A multi-degree-of-freedom maintenance platform for offshore drilling platforms includes:

[0005] The frame can be moved horizontally along the edge of the offshore drilling platform;

[0006] The skateboard can move up and down along the frame;

[0007] The pivot is mounted on the skateboard and can swing horizontally around a vertical line;

[0008] The rocker arm is hinged to a pivot and can swing up and down in the vertical plane.

[0009] The suspended platform is horizontally hinged to the end of the rocker arm;

[0010] The winch, mounted on the rotating shaft and connected to the suspended platform via a wire rope, is used to adjust the platform's tilt angle.

[0011] Further improvements to the technical solution: Guide rails and racks are installed on the edge of the offshore drilling platform, and gears driven by a first hydraulic motor are installed on the frame. The gears mesh with the racks to drive the frame to move horizontally along the edge of the offshore drilling platform.

[0012] Further improve the technical solution: A first hydraulic cylinder is set on the frame. The first hydraulic cylinder is connected to the slide plate through a steel wire rope and a pulley system, and is used to drive the slide plate to move up and down along the frame.

[0013] Further improvements to the technical solution: Multiple sets of rollers are installed between the frame and the offshore drilling platform, and between the sliding plate and the frame.

[0014] Further improve the technical solution: A second hydraulic motor is installed on the skateboard. The second hydraulic motor is connected to the rotating shaft and is used to drive the rotating shaft to swing horizontally around the vertical line.

[0015] Further improve the technical solution: A second hydraulic cylinder is hinged between the rotating shaft and the rocker arm. The second hydraulic cylinder is used to drive the rocker arm to swing up and down in the vertical plane.

[0016] After implementing the above technical solution, the beneficial effects of this utility model compared to the prior art are:

[0017] This utility model's multi-degree-of-freedom maintenance platform mainly consists of a frame, sliding plate, rotating shaft, rocker arm, suspended platform, and winch. Through the coordinated movement of these components, the suspended platform possesses five degrees of freedom, significantly increasing its flexibility. Maintenance personnel are no longer limited by operating position and angle when repairing drilling operations, allowing for convenient and safe maintenance procedures. Attached Figure Description

[0018] Appendix Figure 1 The image shown is a front view of this multi-degree-of-freedom maintenance platform.

[0019] Appendix Figure 2 The image shown is a side view of this multi-degree-of-freedom maintenance platform.

[0020] Appendix Figure 3 The attached image shows the attached image. Figure 2 A magnified view of a portion of the image.

[0021] Appendix Figure 4-5 The diagram shown is a schematic of the operation of this multi-degree-of-freedom maintenance platform.

[0022] In the attached diagram: 1. Frame; 2. Slide plate; 3. Roller; 4. First hydraulic motor; 5. Gear; 6. First cylinder; 7. Moving pulley; 8. Fixed pulley; 9. Wire rope; 10. Shaft; 11. Second hydraulic motor; 12. Rocker arm; 13. Second cylinder; 14. Suspended platform; 15. Winch; 16. Connecting plate; 17. Rack; 18. Guide rail; 19. Offshore drilling platform. Detailed Implementation

[0023] The preferred embodiments of this utility model are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of this utility model and are not intended to limit the scope of protection of this utility model. It should be noted that in the description of this utility model, terms such as "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation and positional relationship, and therefore should not be construed as a limitation of this utility model. It should also be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] A multi-degree-of-freedom maintenance platform for offshore drilling platforms is disclosed, relating to the field of offshore drilling platform technology. It primarily addresses the problem of limited operation of existing maintenance baskets, which compromises worker safety. The composition and working principle of this invention are described in detail below.

[0025] See attached document Figure 1-3 The multi-degree-of-freedom maintenance platform for offshore drilling platforms of this utility model mainly consists of a frame 1, a sliding plate 2, a rotating shaft 10, a rocker arm 12, a basket 14, and a winch 15.

[0026] Specifically, a rack 17 and a guide rail 18 are provided on the edge of the offshore drilling platform 19. The frame 1 is hooked onto the guide rail 18, and three sets of rollers 3 are provided between the frame 1 and the offshore drilling platform 19. A first hydraulic motor 4 (or an electric motor) and a gear 5 are provided on the frame 1, and the gear 5 is meshed with the rack 17. During operation, the first hydraulic motor 4 drives the gear 5 to rotate, enabling the frame 1 to move horizontally along the edge of the offshore drilling platform 19.

[0027] The slide plate 2 is set inside the frame 1, and four sets of rollers 3 are installed between the slide plate 2 and the frame 1. A first hydraulic cylinder 6 is installed on the frame 1, and the first hydraulic cylinder 6 is connected to the slide plate 2 through a steel wire rope 9, a fixed pulley 8, and a movable pulley 7. When working, the first hydraulic cylinder 6 pulls the movable pulley 7, so that the slide plate 2 can move up and down along the frame 1.

[0028] A bearing housing and a second hydraulic motor 11 (or an electric motor) are provided at the center of the skateboard 2. The rotating shaft 10 is installed in the bearing housing and connected to the second hydraulic motor 11. When working, the second hydraulic motor 11 can drive the rotating shaft 10 to swing horizontally around the vertical line.

[0029] A connecting plate 16 is welded onto the rotating shaft 10, and the rocker arm 12 is hinged to the connecting plate 16. A second hydraulic cylinder 13 is hinged between the connecting plate 16 and the rocker arm 12. During operation, the second hydraulic cylinder 13 can drive the rocker arm 12 to swing up and down in the vertical plane.

[0030] The suspended platform 14 is horizontally hinged to the end of the rocker arm 12. A winch 15 is installed on the connecting plate 16, and the winch 15 is connected to the suspended platform 14 via a wire rope 9. During operation, maintenance personnel stand inside the suspended platform 14. At this time, the winch 15 adjusts the pitch angle of the suspended platform 14 by winding and unwinding the wire rope 9 to ensure that the suspended platform 14 is always in a horizontal state.

[0031] See attached document Figure 4-5 Because the frame 1 can move horizontally along the edge of the offshore drilling platform 19, the basket 14 has a degree of freedom to translate along the X-axis. Because the slide plate 2 can move up and down along the frame 1, the basket 14 has a degree of freedom to translate along the Z-axis. Because the pivot 10 can swing horizontally around a vertical line, the basket 14 has a degree of freedom to swing around the Z-axis. Because the rocker arm 12 can swing up and down in the vertical plane, the basket 14 has a degree of freedom to swing in the vertical plane. Furthermore, because the winch 15 can adjust the pitch angle of the basket 14, the basket 14 has five degrees of freedom, greatly increasing its flexibility. Thus, maintenance personnel are no longer limited by operating position and angle when performing drilling maintenance, allowing for convenient and safe maintenance operations.

[0032] It is worth noting that the content not described in detail in the above embodiments is prior art. It is also worth noting that any additions, subtractions, substitutions, and improvements made by those skilled in the art based on the structure and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-degree of freedom service platform for an offshore drilling platform, characterized by: include: The frame can be moved horizontally along the edge of the offshore drilling platform; The skateboard can move up and down along the frame; The pivot is mounted on the skateboard and can swing horizontally around a vertical line; The rocker arm is hinged to a pivot and can swing up and down in the vertical plane. The suspended platform is horizontally hinged to the end of the rocker arm; The winch, mounted on the rotating shaft and connected to the suspended platform via a wire rope, is used to adjust the platform's tilt angle.

2. A multi-freedom maintenance platform for an offshore drilling platform as defined in claim 1, characterized in that: Guide rails and racks are installed on the edge of the offshore drilling platform, and gears driven by a first hydraulic motor are installed on the frame. The gears mesh with the racks to drive the frame to move horizontally along the edge of the offshore drilling platform.

3. A multi-degree-of-freedom maintenance platform for offshore drilling platforms as described in claim 1, characterized in that: A first hydraulic cylinder is installed on the frame. The first hydraulic cylinder is connected to the skateboard through a steel wire rope and a pulley system, and is used to drive the skateboard to move up and down along the frame.

4. A multi-degree-of-freedom maintenance platform for offshore drilling platforms as described in claim 1, characterized in that: Multiple sets of rollers are installed between the frame and the offshore drilling platform, and between the sliding plate and the frame.

5. A multi-degree-of-freedom maintenance platform for offshore drilling platforms as described in claim 1, characterized in that: A second hydraulic motor is installed on the skateboard. The second hydraulic motor is connected to the rotating shaft and is used to drive the rotating shaft to swing horizontally around a vertical line.

6. A multi-degree-of-freedom maintenance platform for offshore drilling platforms as described in claim 1, characterized in that: A second hydraulic cylinder is hinged between the rotating shaft and the rocker arm. The second hydraulic cylinder is used to drive the rocker arm to swing up and down in the vertical plane.

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