Self-elevating drilling platform suspension arm supporting structure

Abstract

The utility model relates to the technical field of ocean engineering mechanical equipment, in particular to a lifting arm supporting structure of a self-elevating drilling platform. Comprising a supporting frame, a supporting seat and a positioning block, the supporting frame is of a truss structure, the bottom end of the supporting frame is welded to a drilling platform deck, sleeves are welded to joints between horizontal rods in the supporting frame, the top end of the supporting frame is fixedly connected with the supporting seat, a positioning groove is formed in the supporting seat and is a stepped hole, and a camera is arranged at the bottom end of the supporting seat. The upper end of the positioning block is movably connected with the positioning block which is arranged at the bottom end of the crane suspension arm. The lifting arm supporting structure of the self-elevating drilling platform is simple, light and easy to assemble, can adapt to the marine environment, has the function of accurately positioning the lifting arm, and solves the problem that a crane is easy to turn over due to the lack of supporting force of the lifting arm.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engineering machinery and equipment, in particular to a self-elevating drilling platform boom support structure. Background Art

[0002] Deep sea floating wind turbine projects have become an important direction in the offshore wind power field. However, some areas do not have suitable ports and docks to meet the needs of large-scale floating wind turbine assembly. Therefore, it is necessary to convert traditional jack-up drilling platforms into temporary offshore wind power lifting platforms.

[0003] However, when converting a jack-up drilling platform into a temporary lifting platform for offshore wind power, the crane is prone to tipping over due to the heavy boom and limited fixing measures provided by the drilling platform. Therefore, a device is needed to provide support for the boom and allow the boom to be accurately docked on the support structure. Utility Model Content

[0004] (I) Technical problems solved: In view of the deficiencies of the prior art, the utility model provides a boom support structure for a self-elevating drilling platform, which has the advantages of simple and light structure, easy assembly, and adaptability to offshore environments. It has the function of accurately positioning the boom, and solves the problem that the boom is prone to overturning due to lack of supporting force.

[0005] (ii) Technical solution: In order to achieve the above-mentioned purpose of being able to accurately position the boom and provide stable support for the crane, the utility model provides the following technical solution: a self-elevating drilling platform boom support structure, including a support frame, a support seat, and a positioning block. The support frame is a truss structure, and sleeves are welded at the nodes between the internal horizontal bars. The support frame is fixedly connected to the support seat at the top, and a positioning groove is arranged above the support seat. The positioning groove is in the shape of a stepped hole. The positioning block is arranged below the boom of the crane, and the positioning block is coaxial with the positioning groove and has a clearance fit. A camera is arranged at the bottom end of the positioning groove. When in use, the camera will perform a visual analysis of the observed image. Since the positioning block is fixed on the crane base, the relative distance between the boom and the support seat is determined by comparing the size of the image captured by the camera with the fixed block. When the graphic area of ​​the fixed block is the same, the boom can be controlled to fall on the support seat. At this time, the positioning block will fall into the positioning groove, so that the entire boom can be stably docked. At the same time, since the support frame adopts a truss structure, the force will be dispersed on each internal node. A sleeve is welded to the outside of each node to enhance the structural stability. At the same time, it also makes the welding process of the support frame simpler and the structure more stable.

[0006] Preferably, a foot pad is provided at the bottom end of the support frame, and the cross-sectional area of ​​the foot pad is larger than the cross-sectional area of ​​the vertical pipe of the support frame.

[0007] Preferably, a shoe foot is provided at the bottom end of the support frame, and the bottom end of the shoe foot is welded to the deck of the drilling platform.

[0008] Preferably, the top of the positioning groove is provided with a rounded corner, and the number of the positioning grooves is not less than two.

[0009] Preferably, explosion-proof glass is provided on the top of the camera, and the number of the cameras is not less than two.

[0010] (III) Beneficial effects: Compared with the prior art, the utility model provides a self-elevating drilling platform boom support structure, which has the following beneficial effects:

[0011] 1. The boom support structure of the self-elevating drilling platform is used in conjunction with the positioning groove, camera and positioning block. Specifically, when the crane is ready to park on the support structure, the camera will collect image information and perform visual analysis. Since the positioning block is set at the bottom of the crane, the distance between the boom and the support structure can be determined by comparing the graphic area between the two positioning blocks. At the same time, the rate of change of the graphic size of the positioning block can be observed through the picture fed back by the camera, so as to judge the speed during parking, so as to control the boom to park at an appropriate speed and reduce the impact on the support structure. Since the positioning block can be placed in the positioning groove, the entire boom parking process is more stable and controllable. At the same time, the speed and accuracy of the boom parking can be controlled according to the information collected by the camera, so as to achieve the purpose of accurately parking the boom, which has the advantages of stable parking and reliable structure.

[0012] 2. The jack-up drilling platform boom support structure is used in conjunction with the support frame and the casing. Specifically, when the crane is parked on the support structure, the force on the top will be dispersed at various truss nodes because the support frame adopts a truss structure, and casings are set on these nodes to strengthen the corresponding structure. At the same time, because the working environment of the device is an offshore drilling platform, the surface area of ​​this structure is larger, and it is not easy to accumulate external moisture and cause rust, which increases the life of the device. Therefore, it has the advantages of being simple and light, easy to assemble, and able to adapt to the offshore environment, and can provide stable support for the boom. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structural section of the utility model;

[0015] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the main structure of the utility model in cooperation with a crane;

[0017] Figure 5 This is a schematic diagram of the positioning block structure of the utility model.

[0018] In the figure: 1-support frame, 11-sleeve, 2-support seat, 21-positioning slot, 22-camera, 3-hoof, 4-foot pad, 5-positioning block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 A self-elevating drilling platform boom support structure, a self-elevating drilling platform boom support structure, including a support frame 1, a support seat 2, and a positioning block 5. The support frame 1 is a truss structure, the bottom end of which is welded to the drilling platform deck, and a casing 11 is welded at the node between the horizontal rods inside.

[0021] The support frame 1 needs to bear a lot of weight and pressure, so it needs to have sufficient strength and stability. The support frame 1 adopts a truss structure, which has a high load-bearing capacity and stability and can effectively support the weight of the boom. At the same time, the bottom end of the support frame 1 is welded to the deck of the drilling platform, and a sleeve 11 is welded between the horizontal rods inside the support frame 1. These sleeves 11 can effectively enhance the strength and stability of the support frame 1, making the support frame 1 more firm and durable. Since the support frame 1 adopts a truss structure, the force on the top will be dispersed at various locations of the truss nodes, and sleeves 11 are set on these nodes to enhance the corresponding structure and further improve the load-bearing capacity and stability of the support frame 1. In addition, since the working environment of the device is an offshore drilling platform, the surface area of ​​this structure is larger, and it is not easy for external moisture to accumulate and cause rust, which increases the life of the device. At the same time, the structure of the support frame 1 is simple and compact, which makes its manufacturing cost low and easy to maintain and maintain. The top of the support frame 1 is fixedly connected to the support seat 2. This design ensures the stability and reliability of the entire support device. The support seat 2 adopts a unique U-shaped structure, and the width of its inner bottom surface is specially designed to be larger than the width of the crane's boom. This design takes into account the parking requirements of the boom and improves its positioning accuracy. When the boom is parked on the support seat 2, since the width of the inner bottom surface of the support seat 2 is larger than the width of the boom, the boom will be naturally guided to the correct position. Such a design not only simplifies the operation process, but also greatly reduces the error caused by improper operation. The U-shaped structure of the support seat 2 provides a limiting effect on both sides of the bottom end of the boom. During the placement of the boom, this limiting effect ensures that the boom will not deviate due to external factors such as wind and waves, further enhancing the safety and stability of the entire device. Such a design is more adaptable to the offshore environment and prolongs the life of the device. Inside the support seat 2, a positioning groove 21 is set. This positioning groove 21 is a stepped hole. It provides more accurate positioning for the parking of the boom. A camera 22 is also cleverly set at the bottom of the positioning groove 21. The main function of this camera 22 is to monitor the image size of the positioning block 5 and perform visual analysis and comparison, so that the distance between the boom and the support seat 2 can be obtained in real time. The upper end of the positioning slot 21 is movably connected to the positioning block 5. The positioning block 5 is deliberately set at the bottom end of the crane boom, which makes the boom more stable and accurate when parked. By cooperating with the positioning slot 21, the positioning block 5 can provide the necessary limiting effect for the boom to ensure that it will not be offset due to external factors (such as wind, waves, etc.). It is worth mentioning that since the positioning slot 21 is a stepped hole design, this means that when the boom is parked, the positioning block 5 will not touch the camera 22. This design takes into account the protection of the camera 22 and avoids damage to the camera 22 due to misoperation or accidental collision. This design achieves precise control of the boom parking process through multi-faceted considerations and optimizations.It not only improves the positioning accuracy of the boom, but also realizes real-time monitoring through the camera 22, ensuring the safety and stability of the entire device. In addition, considering various factors in the actual working environment, this design also pays special attention to the protection of vulnerable parts such as the camera 22, greatly extending its service life. A foot pad 4 is provided at the bottom end of the support frame 1, and the cross-sectional area of ​​the foot pad 4 is larger than the cross-sectional area of ​​the vertical pipe of the support frame 1. A hoof foot 3 is provided at the bottom end of the support frame 1, and the bottom end of the hoof foot 3 is welded to the deck of the drilling platform. The top of the positioning groove 21 is provided with a rounded corner, and the number of the positioning grooves 21 is not less than two. An explosion-proof glass is provided at the top of the camera 22, and the number of the camera 22 is not less than two.

[0022] Working principle: When the boom support structure of the self-elevating drilling platform is in use, the camera 22 will perform a visual analysis of the observed image, and the positioning block 5 can be painted with a color that is easy for the camera 22 to distinguish. Since the positioning block 5 is fixed to the crane base, the relative distance between the boom and the support seat 2 is determined by comparing the size of the image captured by the camera 22 with the fixed block. When the camera 22 captures the same graphic area of ​​the fixed block 5, it means that the boom is now located directly above the support seat 2, so the boom can be controlled to fall on the support seat 2. At the same time, the rate of change of the graphic size of the positioning block 5 can be observed through the image feedback from the camera 22, so as to judge the speed during parking, so as to control the boom to park at an appropriate speed and reduce the impact on the support structure. At this time, the positioning block 5 will fall into the positioning groove 21, so that the entire boom can be stably docked. At the same time, since the support frame 1 adopts a truss structure, the force will be dispersed on each internal node, and a sleeve 11 is welded to the outside of each node to enhance the structural stability, which also makes the support frame 1 easier to weld and manufacture and more stable in structure.

[0023] In summary, the jack-up drilling platform boom support structure, the jack-up drilling platform boom support structure, through the coordinated use of the positioning groove 21, the camera 22 and the positioning block 5, specifically: when the crane is ready to park on the support structure, the camera 22 starts to collect image information. This camera 22 not only captures the position and posture of the crane, but also processes and analyzes the collected images through advanced visual analysis technology. This enables the operator to understand the status of the crane in real time and to warn of possible problems. Since the positioning block 5 is placed at the bottom of the crane, the distance between the boom and the support structure can be accurately determined by comparing the graphic area between the two positioning blocks 5. This determination method is not only fast but also accurate, which greatly improves the accuracy and safety of crane parking. More importantly, the positioning block 5 can be stably placed in the positioning groove 21. This design ensures the stability of the boom during parking, making the entire parking process more controllable. The positioning groove 21 provides an accurate positioning reference for the boom, allowing the boom to find its position quickly and accurately. In addition, this design also takes into account various possible unexpected situations. For example, when the wind or waves are too strong, the boom may be subject to certain disturbances. However, due to the close fit between the positioning block 5 and the positioning groove 21, this disturbance is effectively limited to a certain range, thereby ensuring the stability and safety of the entire support structure. At the same time, the speed and accuracy of the boom parking can be controlled according to the information collected by the camera 22, so as to achieve the purpose of accurately parking the boom, and has the advantages of stable parking and reliable structure. When the crane is parked on the support structure, since the support frame 1 adopts a truss structure, the force on the top will be dispersed at various locations of the truss nodes, and sleeves 11 are provided on these nodes to strengthen the corresponding structure. At the same time, since the working environment of the device is an offshore drilling platform, the surface area of ​​this structure is larger, and it is not easy for external moisture to accumulate and cause rust, which increases the life of the device. Therefore, it has the advantages of being simple and light, easy to assemble, and able to adapt to the offshore environment, and can provide stable support for the boom.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A jack-up drilling platform boom support structure, comprising a support frame (1), a support seat (2), and a positioning block (5), characterized in that: The support frame (1) is a truss structure, the bottom end of which is welded to the drilling platform deck, and the nodes between the horizontal rods inside the support frame (1) are welded with sleeves (11). The top end of the support frame (1) is fixedly connected to the support seat (2), the cross-section of the support seat (2) is U-shaped, and the width of the inner bottom surface is greater than the width of the crane boom. The support seat (2) is provided with a positioning groove (21) inside, and the positioning groove (21) is a stepped hole. A camera (22) is provided at the bottom end, and the upper end is movably connected to the positioning block (5), and the positioning block (5) is provided at the bottom end of the crane boom.

2. The jack-up drilling platform boom support structure according to claim 1, characterized in that: A foot pad (4) is provided at the bottom end of the support frame (1), and the cross-sectional area of ​​the foot pad (4) is larger than the cross-sectional area of ​​the vertical pipe of the support frame (1).

3. The jack-up drilling platform boom support structure according to claim 1, characterized in that: The bottom end of the support frame (1) is provided with a shoe foot (3), and the bottom end of the shoe foot (3) is welded to the deck of the drilling platform.

4. The jack-up drilling platform boom support structure according to claim 1, characterized in that: The top of the positioning groove (21) is provided with a rounded corner, and the number of the positioning grooves (21) is not less than two.

5. The jack-up drilling platform boom support structure according to claim 1, characterized in that: The top of the camera (22) is provided with explosion-proof glass, and the number of the cameras (22) is not less than two.

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