A follow-up righting device

Abstract

The utility model discloses a follow -up righting device, including follow -up righting device main part, follow -up righting device main part includes walking follow -up assembly and sets up on walking follow -up assembly and supports the structure to set up guide rail crossbeam corresponding walking follow -up assembly, walking follow -up assembly is used for driving righting subassembly operation, walking follow -up assembly includes main body frame and walking control assembly, and walking control assembly drives main body frame and righting subassembly on it move, righting subassembly is used for executing the action of righting, and righting subassembly includes handrail subassembly, first telescopic part and second telescopic part, and one end of first telescopic part and second telescopic part is connected with main body frame, and the other end of first telescopic part is hinged with handrail subassembly, and hole piece is set up on handrail subassembly corresponding second telescopic part. This follow -up righting device has mentioned and has small, the good automation performance, the high removal efficiency, has better resistance bad working condition's ability etc.

Description

Technical Field

[0001] This utility model relates to the field of marine oil drilling equipment technology, specifically a follow-up straightening device applicable to blowout preventers inside marine drilling platforms. Background Technology

[0002] BOP (Blowout Preventer) is used to close the inlet during operations such as well testing, well workover, and drilling to prevent blowout accidents.

[0003] In offshore drilling operations, blowout preventers (BOPs) need to be lifted and moved using a bow crane. Due to the complex marine environment, the ship's hull experiences free-degree-of-freedom motion due to waves (e.g., roll, pitch, heave), causing the BOP to sway violently during lifting. Existing technologies for assisting in the lifting and movement of BOPs have the following problems:

[0004] 1. Fixed righting device: It cannot adapt to the relative movement between the hull and the crane, which can easily lead to stress concentration in the structure and pose a risk of fracture;

[0005] 2. Passive damping system: Relies on mechanical damping to absorb energy, with a significant response delay (>200ms), and cannot cope with sudden hull tilting and hull acceleration.

[0006] 3. Synchronization control defects: The existing device has a large synchronization error with the crane in terms of moving speed, and there is a risk of collision between the blowout preventer and the hull when the ship tilts significantly. Utility Model Content

[0007] The purpose of this invention is to provide a follow-up straightening device to solve one or more of the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model discloses a follow-up straightening device, which includes a follow-up straightening device body connected to a support structure. The follow-up straightening device body includes a walking follow-up component and a straightening component disposed on the walking follow-up component.

[0009] The support structure is equipped with guide rail beams corresponding to the walking follow-up components;

[0010] The walking follow-up component is used to drive the straightening component to operate. The walking follow-up component includes a main frame and a walking control component. Both the straightening component and the walking control component are connected to the main frame. The walking control component drives the main frame and the straightening component on it to move.

[0011] The straightening component is used to perform the straightening action. The straightening component includes a handrail component, a first telescopic member and a second telescopic member. One end of the first telescopic member and the second telescopic member are connected to the main frame. The other end of the first telescopic member is hinged to the handrail component. Holes are provided on the handrail component corresponding to the second telescopic member.

[0012] In some implementations...

[0013] Two straightening components are provided on the same side of the main frame, and the two straightening components are arranged symmetrically.

[0014] The support structure is erected on the hull and includes an upper support structure and a lower support structure. At least one guide rail beam is provided on each of the upper and lower support structures. The main frame is located between the guide rail beam on the upper support structure and the guide rail beam on the lower support structure.

[0015] The guide rail beam comprises multiple steel plates, which are combined to form a track corresponding to the walking control components.

[0016] In some implementations...

[0017] The support structure is provided with a third telescopic component, and a second pin is provided at the end of the third telescopic component. The top of the main frame can be provided with an auxiliary pin hole corresponding to the second pin.

[0018] Several guide rail support beams are provided between the guide rail beam and the support structure;

[0019] Limiting devices are added to both ends of the guide rail beam on the surface of the cabin wall, and the limiting devices are on the same horizontal line as the main body of the follow-up straightening device.

[0020] In some embodiments, the walking control component includes a power component, a roller component, and a transmission mechanism. The roller component is correspondingly arranged with the guide rail beam, and the roller component includes a guide wheel and a walking roller.

[0021] In some embodiments, at least one traveling roller is provided at each of the four corners of the main frame, and guide wheels are provided on the inner and outer sides of the four corners of the main frame. The guide wheels are correspondingly arranged with the guide rail beams. The traveling rollers located on the upper and lower sides of the main frame contact the guide rail beams on the upper and lower sides of the main frame, respectively. The guide wheels on the inner and outer sides of the same corner are located on the inner and outer sides of the corresponding guide beams, respectively, and contact the corresponding side of the guide beams.

[0022] In some implementations, the guide wheels on the inner and outer sides of the same corner are symmetrically arranged.

[0023] In some embodiments, the power component is fixed on the main frame, and the power component and the transmission mechanism form the drive system of the follow-up straightening device. The transmission mechanism includes a gear and a rack. The gear is connected to the output shaft of the power component, and the rack is connected to the inner side wall of the guide rail beam. The rack and the guide rail beam are arranged parallel to each other, and the gear meshes with the corresponding rack.

[0024] In some embodiments, the bottom of the main frame is provided with a mounting base, and a straightening component is hinged to each end of the mounting base. One end of the second telescopic member is connected to the mounting base, and the other end of the second telescopic member is provided with a first pin. The handrail assembly is provided with a hole corresponding to the first pin. The first telescopic member is connected to the main frame, and a piston rod is provided on the first telescopic member. The end of the piston rod is hinged to the handrail assembly.

[0025] In some embodiments, the handrail assembly includes a handrail and a rotating mechanism, the rotating mechanism being disposed at the lower part of the handrail and connected to the handrail, and the handrail having holes.

[0026] In some embodiments, the follow-up straightening device also includes a cable chain and / or an encoder.

[0027] Compared with existing technologies, the beneficial effects of this utility model are as follows: Compared with traditional fixed centralizing devices and passive damping systems, this servo centralizing device has advantages such as small size, high mobility, and strong resistance to harsh working conditions. Fixed centralizing devices are bulky and unsuitable for the confined spaces of offshore drilling platforms, and they lack the ability to withstand harsh working conditions during movement. However, the servo centralizing device, through its structural design using roller assemblies and anchoring devices, can effectively adapt to harsh working conditions. Furthermore, this servo centralizing device can achieve unmanned control through a hydraulic and electrical control system, significantly improving the blowout preventer's movement efficiency. Attached Figure Description

[0028] Figure 1 This is a front view of the follow-up straightening device in some embodiments of this utility model;

[0029] Figure 2 This is a side view of the follow-up straightening device supporting the support column in some embodiments of this utility model;

[0030] Figure 3 This is a bottom view of the main body of the follow-up straightening device in some embodiments of this utility model;

[0031] Figure 4 This is a schematic diagram of the movement of the follow-up straightening device in some embodiments of this utility model. Detailed Implementation

[0032] 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.

[0033] Figure 4 The middle arrow indicates the movable direction of the follow-up straightening device. The follow-up straightening device can move in the direction of the arrow and in the opposite direction.

[0034] Please see Figures 1 to 4 The figure shows a preferred embodiment of the present invention, which discloses a follow-up straightening device including a follow-up straightening device body. The follow-up straightening device body is set on a support structure. The follow-up straightening device body includes a walking follow-up component and a straightening component set on the walking follow-up component. The walking follow-up component is used to drive the straightening component to run, and the straightening component is used to straighten the blowout preventer.

[0035] The support structure is erected on the hull, with the direction of gravity as the first direction, the length direction of the support structure (the direction of travel of the follow-up righting device) as the second direction, and the width of the support structure as the third direction. The first, second, and third directions are perpendicular to each other. The support structure is divided into an upper support structure and a lower support structure in the first direction, with the lower support structure being the main load-bearing component. Both the upper and lower support structures may include H-beams and support stiffeners. At least one guide beam 105 is provided on each of the upper and lower support structures. The guide beam 105 may be arranged on the surface of the flange of the H-beam, and several guide support beams 106 are provided between the guide beam 105 and the surface of the H-beam. The guide beam 105 may include a rectangular track composed of four steel plates, with both ends of the track located near the cabin walls. Limiting devices can be added to the surface of the cabin wall corresponding to both ends of the track. The limiting devices are on the same horizontal line as the main body of the follow-up straightening device. The setting of the limiting devices effectively avoids the main body of the follow-up straightening device from colliding with the cabin wall, and effectively prevents damage to the follow-up straightening device. The limiting devices described here can be directly limit blocks or other existing limit structures, which can be directly implemented using existing technology, so they will not be elaborated here.

[0036] The aforementioned walking follow-up assembly includes a main frame 101 and a walking control assembly. Both the straightening assembly and the walking control assembly are connected to the main frame 101. The walking control assembly drives the main frame 101 and the straightening assembly on it to move. The walking control assembly may include a power assembly 110, roller components, and a transmission mechanism 113. The main frame 101 is located in the middle of the guide rail beam 105, and the roller components are correspondingly arranged with the guide rail beam 105. The roller components described here include guide wheels 111 and walking rollers 112. The specific arrangement structure of the guide wheels 111 and walking rollers 112 can be as follows: the walking rollers 112 can be fixed at the four corners of the main frame 101, and the guide wheels 111 can be fixed on the inner and outer sides of the four corners of the main frame 101 through roller seats and ear plates, etc., with at least one guide wheel 111 on one side of each corner, and the guide wheels 111 are correspondingly arranged with the guide rail beam 105. In use, the traveling rollers 112 located on the upper and lower sides of the main frame 101 are positioned on the tracks of the upper and lower guide beams 105, respectively, and are in contact with the guide beams 105 on the upper and lower sides of the main frame 101. The guide wheels 111 on the inner and outer sides of the same corner are located on the inner and outer sides of the corresponding guide beams 105, respectively, and are in contact with the corresponding sides of the guide beams 105, constraining the movement of the follow-up straightening device in a third direction. The guide wheel assembly is also a key stress-bearing location for the entire follow-up straightening device. The guide wheels 111 on the inner and outer sides of the same corner described herein can be symmetrically arranged. The pins and bearings used for the traveling rollers 112 and guide wheels 111 can be calculated and selected before selection to bear larger loads. During the calculation and selection process, the additional loads caused by hull acceleration and tilting can be considered simultaneously.

[0037] The aforementioned main frame 101 can be a steel structure, which serves as a support platform for bearing loads, power components, etc.

[0038] A third telescopic member 109 can be added to the upper support structure as needed. A second pin is provided at the end of the third telescopic member 109. An auxiliary pin hole can be set on the top of the main frame 1 corresponding to the third telescopic member 109. The main body of the follow-up straightening device can be positioned by the positioning block 117. When the follow-up straightening reaches the designated position, the positioning block 117 can lock the position of the straightening frame, and the second pin can be inserted into the auxiliary pin hole, thereby achieving the purpose of locking the main body of the follow-up straightening device.

[0039] The power assembly 110 is fixed to the main frame 101 via flange 1011. The power assembly 110 and the transmission mechanism form the drive system of the follow-up straightening device. The power assembly 110 may include a hydraulic motor and a reducer. The transmission mechanism 113 may include a gear and a rack. The gear is connected to the output shaft of the power assembly 110, and the rack is connected to the inner wall of the guide beam 105. The rack and guide beam 105 are arranged parallel to each other, and the gear meshes with the corresponding rack. The power assembly drives the gear to rotate, thereby achieving the purpose of driving the follow-up straightening device to run along the extension direction of the guide beam 105. The power assembly 110 may also be a bidirectional motor, etc.

[0040] Two straightening components are provided on the main frame 101, located on the front side of the main frame, and can be symmetrically distributed. Each straightening component may include a handrail assembly, a first telescopic member 104, and a second telescopic member 108. The handrail assembly includes a handrail 103 and a rotating mechanism. The rotating mechanism is located at the lower part of the handrail 103, connected to the handrail 103, and can be used to control the rotation of the handrail 103. The specific structure of the straightening components can be as follows: a mounting base 102 is provided at the bottom of the main frame 101, with a straightening component hinged to each end of the mounting base 102; a second telescopic member 108 is located at the end of the mounting base 102, with a first pin at the end; a hole 116 is provided on the handrail 103 corresponding to the first pin; the first telescopic member 104 is fixed to the main frame 101 via an ear plate, and a piston rod is provided on the first telescopic member 104, with the end of the piston rod hinged to the handrail assembly. The second telescopic member 108 pushes its end pin into the corresponding hole on the handrail 103. The pin is a forging that bears the main force, and the handrail 103 is locked. The second telescopic member 108 described herein can be connected to the mounting base via the anchor mounting base 107, which can be a steel structure.

[0041] The handrail assembly can also consist of a single handrail 3, whose rotation can be controlled directly by the first telescopic component 104.

[0042] The first telescopic component 104, the second telescopic component 108, and the third telescopic component 109 mentioned above can all be hydraulic cylinders. The rotating mechanism can also be a hydraulic component.

[0043] The aforementioned follow-up straightening device may also include a cable chain device 114, which is used to protect the cable and the hydraulic hose for the aforementioned cylinder, guide their movement within a fixed range, reduce wear, and facilitate maintenance.

[0044] When the blowout preventer is lifted to the designated position, the first telescopic member 104 pushes the piston rod, causing the handle 103 connected to the piston rod to rotate to the edge of the blowout preventer's support column 2. Then, the second telescopic member 108 pushes the pin to insert into the corresponding hole on the handle 103. At this time, the pin connected to the second telescopic member 108 is the main force-bearing component, completing the gripping action.

[0045] When the ship's acceleration is large or the ship tilts, the blowout preventer continues to operate. With the help of components such as the guide wheel 111 and the traveling roller 112, the follow-up righting device can still right the blowout preventer and reduce its swaying.

[0046] The towing device moves synchronously with the crane. During this process, the guide wheel 111 cooperates with the traveling roller 112. At this time, the handrail 103 locks and grips the handrail 2. The gear and rack are driven by the drive system of the follow-up straightening device, which drives the follow-up straightening device to move horizontally. The follow-up straightening device moves along the guide rail beam 105.

[0047] The follow-up straightening device may also include an encoder 115, which may be an explosion-proof encoder. The encoder 115 keeps the same speed as the crane. When the follow-up straightening device supports the blowout preventer to the designated position, it is controlled by the limit device to reach the designated position more accurately. After the blowout preventer is lowered, the follow-up straightening device returns to the original position without load.

[0048] When the self-storage condition, i.e., when the LMRP part of the blowout preventer is fixed on the platform, the third telescopic member 109 pushes the pin at the end of the third telescopic member 109 into the corresponding auxiliary pin hole, so that the main body of the follow-up straightening device is locked to the support structure, and the second telescopic member 108 locks the handrail 103, thus realizing the self-storage locking of the LMRP and preventing it from shaking and causing structural damage.

[0049] All of the above-mentioned undisclosed matters can be implemented using existing technologies, so they will not be elaborated here.

[0050] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0052] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A follow-up righting device, characterized in that The follow-up straightening device includes a main body connected to a support structure. The main body includes a walking follow-up component and a straightening component mounted on the walking follow-up component. The support structure is equipped with guide rail beams corresponding to the walking follow-up components; The walking follow-up component is used to drive the straightening component to operate. The walking follow-up component includes a main frame and a walking control component. Both the straightening component and the walking control component are connected to the main frame. The walking control component drives the main frame and the straightening component on it to move. The straightening component is used to perform the straightening action. The straightening component includes a handrail component, a first telescopic member and a second telescopic member. One end of the first telescopic member and the second telescopic member are connected to the main frame. The other end of the first telescopic member is hinged to the handrail component. Holes are provided on the handrail component corresponding to the second telescopic member.

2. The follow-up straightening device according to claim 1, characterized in that, Two straightening components are provided on the same side of the main frame, and the two straightening components are arranged symmetrically. The support structure is erected on the hull and includes an upper support structure and a lower support structure. At least one guide rail beam is provided on each of the upper and lower support structures. The main frame is located between the guide rail beam on the upper support structure and the guide rail beam on the lower support structure. The guide rail beam comprises multiple steel plates, which are combined to form a track corresponding to the walking control components.

3. A follow-up straightening device according to claim 1 or 2, characterized in that, The support structure is provided with a third telescopic component, and a second pin is provided at the end of the third telescopic component. The top of the main frame can be provided with an auxiliary pin hole corresponding to the second pin. Several guide rail support beams are provided between the guide rail beam and the support structure; Limiting devices are added to both ends of the guide rail beam on the surface of the cabin wall, and the limiting devices are on the same horizontal line as the main body of the follow-up straightening device.

4. A follow-up righting device according to claim 1 or 2, characterized in that The walking control component includes a power component, a roller component, and a transmission mechanism. The roller component is correspondingly arranged with the guide rail beam, and the roller component includes a guide wheel and a walking roller.

5. A follow-up righting device according to claim 4, characterised in that Each of the four corners of the main frame is provided with at least one traveling roller. Guide wheels are provided on the inner and outer sides of the four corners of the main frame. The guide wheels are correspondingly set with the guide rail beams. The traveling rollers located on the upper and lower sides of the main frame are in contact with the guide rail beams on the upper and lower sides of the main frame, respectively. The guide wheels on the inner and outer sides of the same corner are located on the inner and outer sides of the corresponding guide beams, respectively, and are in contact with the corresponding sides of the guide beams.

6. A follow-up righting device according to claim 5, characterised in that The guide wheels on both the inner and outer sides of the same corner are symmetrically arranged.

7. A follow-up righting device according to claim 4, characterized in that The power component is fixed on the main frame. The power component and the transmission mechanism form the drive system of the follow-up straightening device. The transmission mechanism includes a gear and a rack. The gear is connected to the output shaft of the power component, and the rack is connected to the inner side wall of the guide rail beam. The rack and the guide rail beam are arranged parallel to each other, and the gear meshes with the corresponding rack.

8. A follow-up righting device according to claim 1, characterized in that The main frame is provided with a mounting base at the bottom. A straightening component is hinged to each end of the mounting base. One end of the second telescopic component is connected to the mounting base. A first pin is provided at the other end of the second telescopic component. A hole is provided on the handrail component corresponding to the first pin. The first telescopic component is connected to the main frame. A piston rod is provided on the first telescopic component. The end of the piston rod is hinged to the handrail component.

9. A follow-up righting device according to claim 1 or 8, characterized in that The handrail assembly includes a handrail and a rotating mechanism. The rotating mechanism is located at the lower part of the handrail and is connected to the handrail. Holes are provided on the handrail.

10. A follow-up righting device according to claim 1, characterized in that The follow-up straightening device also includes a cable chain device and / or an encoder.

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