Connector butting equipment and flange butting system

Abstract

The utility model discloses a connector butt joint device and a flange butt joint system, the flange butt joint system comprises a mounting rack, a guide fixing assembly, a screw mounting assembly and a nut mounting assembly; a flange to be in butt joint is fixed to the guiding and fixing assembly, the guiding and fixing assembly comprises an axial guide rod and a flange clamping device, the two ends of the axial guide rod are installed on the vertical guide rods of the installation frame respectively, the flange clamping device is fixedly connected with the axial guide rod, and the flange to be in butt joint is clamped and fixed to the flange clamping device. The first longitudinal power mechanism and the second longitudinal power mechanism are oil cylinders, each oil cylinder is of a structure that a cylinder rod penetrates through a cylinder barrel, the cylinder rod is fixedly connected with the axial guide rod, and the nut installation assembly and the screw installation assembly are fixed to the cylinder barrels of the corresponding oil cylinders respectively. Through the special oil cylinder form and the arrangement of the axial guide rod and the flange positioning frame, the strength of the guide structure is ensured in the butt joint process of the screw rod and the nut of the flange.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater construction equipment, in particular to a connector docking device and a flange docking system. Background Art

[0002] With the development of marine technology, deep-sea pipelines play an increasingly important role in marine engineering. Deep-sea pipelines are widely used in fields such as oil transportation and fluid transportation. During use, there are various reasons that can cause pipeline damage. For example, due to the long-term exposure of deep-sea pipelines to seawater and other corrosive environments, the pipelines may experience corrosion and wear, affecting their structural integrity and function. At the same time, submarine earthquakes, landslides, mooring accidents, or other underwater activities may cause the pipelines to be subjected to external impacts, resulting in damage or rupture. In addition, long-term exposure to pressure and temperature changes, as well as dynamic loads such as ocean currents, may cause fatigue of the pipeline material, leading to cracks or fractures.

[0003] In order to replace damaged submarine pipelines, existing technologies mostly use connectors to replace the damaged sections of submarine pipelines. After the submarine pipeline is inserted into the connector, it is necessary to tighten the flange of the connector to achieve fastening. During the docking process of the flange screw and nut, due to the large size of the equipment, how to ensure the strength of the guiding structure and achieve the axial docking of the flange screw and nut has become an urgent problem for those skilled in the art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a connector docking device and a flange docking system, in order to ensure the strength of the guiding structure and achieve the axial docking of the flange screw and nut during the docking process of the flange screw and nut. This purpose is achieved through the following technical solutions:

[0005] The utility model provides a flange docking system for a connector docking device. The connector docking device includes a mounting frame. The flange docking system includes:

[0006] A guiding and fixing assembly, the guiding and fixing assembly includes:

[0007] An axial guide rod, both ends of the axial guide rod are respectively installed on the vertical guide rods of the mounting frame;

[0008] A flange gripper, the flange gripper is fixedly connected to the axial guide rod, and the flange to be docked is clamped and fixed on the flange gripper;

[0009] A screw mounting assembly, a screw is detachably installed on the screw mounting assembly, and the screw mounting assembly moves along the guiding and fixing assembly in a direction close to or away from the flange under the drive of a first longitudinal power mechanism;

[0010] A nut installation assembly, which moves along the guiding and fixing assembly in a direction close to or away from the flange under the drive of a second longitudinal power mechanism;

[0011] Both the first longitudinal power mechanism and the second longitudinal power mechanism are oil cylinders. The oil cylinder has a structure in which the cylinder rod penetrates through the cylinder barrel. The cylinder rod is fixedly connected to the axial guide rod, and the nut installation assembly and the screw installation assembly are respectively fixed on the cylinder barrels of the corresponding oil cylinders.

[0012] In some embodiments, there are two axial guide rods, and the two axial guide rods are spaced apart in the width direction. The screw installation assembly, the nut installation assembly, the flange, and the connector are all arranged between the two axial guide rods.

[0013] In some embodiments, the guiding and fixing assembly further includes:

[0014] An end limiting plate, which is fixed to the axial guide rod, and the end limiting plate is arranged on the side of the screw installation frame away from the nut installation frame. The flange holder is fixedly connected to the end limiting plate through a connecting rod.

[0015] In some embodiments, four vertical guide rods are arranged on the installation frame, scale lines are provided on the vertical guide rods, and a collar is arranged at the end of the axial guide rod, and the collar is sleeved on the vertical guide rods.

[0016] In some embodiments, the flange holder includes:

[0017] A holder frame, which has a flange accommodating space for accommodating the flange;

[0018] Positioning blocks, there are two groups of positioning blocks, and the two positioning blocks are respectively arranged on the opposite inner side walls of the flange accommodating space;

[0019] A positioning power member, which drives the two positioning blocks to move in a direction close to or away from each other. When the two positioning blocks are in a state of approaching each other, they are clamped and fixed to the positioning pins on the outer periphery of the flange.

[0020] In some embodiments, the holder frame is of a portal structure, and a through hole is formed at the bottom of the holder frame, and the axial guide rod passes through the through hole to install the holder frame on the axial guide rod.

[0021] In some embodiments, the holder frame is of a double-layer plate structure, reinforcing columns are arranged between the two layers of plates, and the two layers of plates are detachably connected by bolts.

[0022] In some embodiments, the flange docking system provided by the present utility model further includes:

[0023] A stretcher, the stretcher is sleeved on a screw to be installed, the stretcher includes a stretching cylinder and a stretching nut, the stretching nut is arranged at one end of the screw away from the nut to be installed, and the stretching nut is tightened by a stretching motor after the screw is tightened.

[0024] In some embodiments, the flange docking system provided by the present invention further includes:

[0025] A rear motor bracket, the rear motor bracket is axially movably installed on the guiding and fixing assembly, and the stretching motor is installed on the rear motor bracket.

[0026] The present invention also provides a connector docking device, including:

[0027] The flange docking system as described above;

[0028] A mounting frame, the flange docking mechanism is installed on the mounting frame.

[0029] The flange docking system provided by the present invention is used for a connector docking device, the connector docking device includes a mounting frame, and the flange docking system includes a guiding and fixing assembly, a screw mounting assembly and a nut mounting assembly; wherein, the flanges to be docked are fixed to the guiding and fixing assembly, the screw mounting assembly moves along the guiding and fixing assembly in a direction close to or away from the flange under the drive of a first longitudinal power mechanism; the nut mounting assembly moves along the guiding and fixing assembly in a direction close to or away from the flange under the drive of a second longitudinal power mechanism; the guiding and fixing assembly includes an axial guide rod and a flange gripper, both ends of the axial guide rod are respectively installed on the vertical guide rods of the mounting frame, the flange gripper is fixedly connected with the axial guide rod, and the flanges to be docked are clamped and fixed to the flange gripper; both the first longitudinal power mechanism and the second longitudinal power mechanism are oil cylinders, the oil cylinder is a structure in which the cylinder rod penetrates through the cylinder barrel, the cylinder rod is fixedly connected with the axial guide rod, and the nut mounting assembly and the screw mounting assembly are respectively fixed to the cylinder barrels of the corresponding oil cylinders.

[0030] During the working process, the mounting bracket drives the flange docking system and the connector into the water. After the mounting bracket completes the positioning with the jacket, the flange to be docked is fixed through the guiding and fixing component. Then, the screw mounting component is driven to move along the guiding and fixing component towards the flange, and the screw carried on the screw mounting component is passed through the flange. The nut mounting component is driven to move towards the flange, and the nut is sleeved on the screw, realizing the axial installation of the flange screw and the flange nut. At the same time, both the first and second longitudinal power components are in the form of oil cylinders with the cylinder rod penetrating the cylinder barrel to reduce the risk of the cylinder rod bending when the extension length is relatively large. Through the setting of the special oil cylinder form, the axial guide rod, and the flange positioning frame, the strength of the guiding structure is ensured during the docking process of the flange screw and the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0032] Figure 1 FIG. 1 is one of the structural schematic diagrams of a specific embodiment of the flange docking system provided by the present invention;

[0033] Figure 2 FIG. 2 is another structural schematic diagram of a specific embodiment of the flange docking system provided by the present invention;

[0034] Figure 3 FIG. 3 is yet another structural schematic diagram of a specific embodiment of the flange docking system provided by the present invention;

[0035] Figure 4 FIG. 4 is still another structural schematic diagram of a specific embodiment of the flange docking system provided by the present invention;

[0036] Figure 5 FIG. 5 is one of the structural schematic diagrams of a specific embodiment of the nut mounting component in the flange docking system provided by the present invention;

[0037] Figure 6 FIG. 6 is another structural schematic diagram of a specific embodiment of the nut mounting component in the flange docking system provided by the present invention;

[0038] Figure 7 FIG. 7 is yet another structural schematic diagram of a specific embodiment of the nut mounting component in the flange docking system provided by the present invention;

[0039] Figure 8The fourth structural schematic diagram of a specific embodiment of the nut installation component in the flange docking system provided by the present utility model;

[0040] Figure 9 The fifth structural schematic diagram of a specific embodiment of the nut installation component in the flange docking system provided by the present utility model;

[0041] Figure 10 The sixth structural schematic diagram of a specific embodiment of the nut installation component in the flange docking system provided by the present utility model;

[0042] Figure 11 The seventh structural schematic diagram of a specific embodiment of the nut installation component in the flange docking system provided by the present utility model;

[0043] Figure 12 The eighth structural schematic diagram of a specific embodiment of the nut installation component in the flange docking system provided by the present utility model;

[0044] Figure 13 The first structural schematic diagram of a specific embodiment of the screw installation component in the flange docking system provided by the present utility model;

[0045] Figure 14 The second structural schematic diagram of a specific embodiment of the screw installation component in the flange docking system provided by the present utility model;

[0046] Figure 15 The third structural schematic diagram of a specific embodiment of the screw installation component in the flange docking system provided by the present utility model;

[0047] Figure 16 The fourth structural schematic diagram of a specific embodiment of the screw installation component in the flange docking system provided by the present utility model;

[0048] Figure 17 The fifth structural schematic diagram of a specific embodiment of the screw installation component in the flange docking system provided by the present utility model;

[0049] Figure 18 The sixth structural schematic diagram of a specific embodiment of the screw installation component in the flange docking system provided by the present utility model;

[0050] Figure 19 The seventh structural schematic diagram of a specific embodiment of the screw installation component in the flange docking system provided by the present utility model;

[0051] Figure 20 The eighth structural schematic diagram of a specific embodiment of the screw installation component in the flange docking system provided by the present utility model;

[0052] Figure 21 The ninth structural schematic diagram of a specific embodiment of the screw mounting assembly in the flange docking system provided by the present utility model;

[0053] Figure 22 The tenth structural schematic diagram of a specific embodiment of the screw mounting assembly in the flange docking system provided by the present utility model;

[0054] Figure 23 The partial enlarged view of the screw mounting assembly in the flange docking system provided by the present invention;

[0055] Figure 24 The part drawing of the tensioner.

[0056] The reference signs are as follows:

[0057] 100 - screw, 200 - nut;

[0058] 21 - axial guide rod, 211 - collar;

[0059] 22 - end limiting plate;

[0060] 23 - flange gripper, 231 - gripper frame, 232 - flange accommodation space, 233 - positioning block;

[0061] 30 - nut mounting assembly;

[0062] 31 - nut mounting bracket, 311 - frame body, 312 - first clamping arm;

[0063] 32 - rotary power member, 33 - second longitudinal power mechanism, 34 - sleeve, 35 - lever, 36 - dial;

[0064] 38 - first pipeline accommodation space, 39 - first mounting seat;

[0065] 40 - screw mounting assembly;

[0066] 41 - first longitudinal power mechanism, 42 - moving frame;

[0067] 43 - screw mounting bracket, 431 - portal part, 432 - second clamping arm;

[0068] 44 - stretcher, 45 - rear motor bracket, 46 - second mounting seat, 47 - clamp, 48 - connecting rod, 49 - guide

[0069] structure;

[0070] 410 - jaw, 411 - clamping post, 412 - second pipeline accommodation space, 413 - tensioning motor, 414 - dial plate, 415 - rod; 416 - tensioning nut. Detailed Implementation Modes

[0071] Exemplary implementation modes of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary implementation modes of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the implementation modes set forth herein. On the contrary, these implementation modes are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art.

[0072] It should be understood that the terms used herein are for the purpose of describing specific exemplary implementation modes only and are not intended to be limiting. Unless otherwise clearly specified in the context, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0073] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless otherwise clearly indicated in the context, terms such as "first" and "second" and other numerical terms do not imply an order or sequence when used herein. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the exemplary implementation modes.

[0074] For ease of description, spatial relative relationship terms may be used herein to describe the relationship of one element or feature shown in the figure to another element or feature, such as "inner", "outer", "inner side", "outer side", "below", "beneath", "above", "over", etc. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figure. For example, if the device in the figure is flipped, the element described as "below" or "beneath" another element or feature will then be oriented "above" or "over" the other element or feature. Thus, the exemplary term "below" can include both the upper and lower orientations.

[0075] Please refer to Figures 1 - 24 The flange docking system provided by the present invention is used for a connector docking device, and the connector docking device includes a mounting frame, and the flange docking system and the connector are both mounted on the mounting frame and sent to a preset underwater position through the mounting frame. The positioning and position adjustment of the system are completed through the mounting frame, and the installation of the screw 100 and the nut 200 of the flange is completed through the flange docking system.

[0076] In a specific embodiment, the flange docking system provided by the present invention is used for a connector docking device, and the connector docking device includes a mounting frame, such as Figures 1 - 4 As shown, the flange docking system includes a guide fixing component, a screw installation component 40 and a nut installation component 30; wherein, the two flanges of the flange to be docked are respectively arranged at the cut position of the sea pipe to be repaired and the end of the connector, and when installing the connector and the sea pipe, the two flanges need to be fixed by screws 100 and nuts 200; when the mounting frame carries the flange docking system and the connector to the designated underwater position, the flange to be docked is fixed on the guide fixing component, and the two flanges are centered and arranged relatively under the position adjustment action of the mounting frame, and the screw 100 to be installed is detachably installed on the screw installation component 40, and the screw installation component 40 is driven by the first longitudinal power mechanism to move along the guide fixing component to approach or Move in the direction away from the flange, and after reaching the installation position, the screw 100 passes through the installation hole on the flange; the nut installation assembly 30 is driven by the second longitudinal power mechanism 33, and moves along the guide fixing assembly in the direction close to or away from the flange. After reaching the installation position, the nut 200 is sleeved on the outer periphery of the screw 100; the nut installation assembly 30 includes a nut mounting frame 31, a transmission member rotatably mounted on the nut mounting frame 31, and a rotating power member 32 transmission-connected to the transmission member. The nut 200 to be installed is rotatably mounted on the nut mounting frame 31 through the transmission member, and rotates under the drive of the rotating power member 32, so that the nut 200 is tightened on the screw 100 to complete the flange installation.

[0077] It should be understood that the flange usually has multiple mounting holes in the circumferential direction. Accordingly, there are also multiple combinations of screws 100 and nuts 200. Each screw 100 passes through a mounting hole and is tightened and fixed by a nut 200.

[0078] The guiding and fixing assembly includes two axial guide rods 21 which are spaced apart in the width direction. Structures such as the screw mounting assembly 40, the nut mounting assembly 30, the flange, and the connector are all arranged between the two axial guide rods 21. The two ends of each axial guide rod 21 are respectively mounted on the vertical guide rods of the mounting frame. In this embodiment, the axial direction refers to the axial extension direction of the connector or the direction parallel to the axial direction of the connector. There are four vertical guide rods on the mounting frame, and there are scale lines on the vertical guide rods. A collar 211 is provided at the end of the axial guide rod 21, and the collar 211 is sleeved on the vertical guide rod to facilitate installation and obtain the installation height by using the scale lines.

[0079] During the working process, the mounting frame drives the flange docking system and the connector into the water. After the mounting frame completes the positioning with the jacket platform, the flange to be docked is fixed by the guiding and fixing assembly. Then, the screw mounting assembly 40 is driven to move along the guiding and fixing assembly towards the flange, and the screw 100 carried on the screw mounting assembly 40 is passed through the flange. The nut mounting assembly 30 is driven to move towards the flange. After the nut 200 is sleeved on the screw 100, the nut 200 is tightened by the action of the rotary power member 32 and the transmission member. Thus, the installation of the flange screw 100 and the tightening of the flange nut 200 are realized, ensuring the automatic installation of the flange and improving the installation convenience of the flange.

[0080] In some embodiments, the guiding and fixing assembly further includes an end limiting plate 22 which is fixed to the axial guide rod 21 and is arranged on the side of the screw mounting frame 43 away from the nut mounting frame 31. The end limiting plate 22 and the gripper frame 231 are rigidly connected together by a connecting rod 48. The end limiting plate 22 and the gripper frame 231 are connected to three oil cylinders of the mounting frame to determine the positions of the two axial guide rods 21. The positioning of the screw mounting assembly 40 and the axial guide rod 21 bracket is determined by the holes opened on the axial guide rod 21 and the holes opened on the first longitudinal power mechanism 41. The holes opened on the hollow cylindrical piston rod are aligned with the holes opened on the axial guide rod 21 and screws are screwed in to realize the positioning of the piston rod and the axial guide rod 21. Once positioned, the two will not move relative to each other. A cylinder barrel is sleeved outside the piston rod, and the cylinder barrel moves on the piston rod. The stroke of the oil cylinder determines the moving range of the entire moving frame 42.

[0081] To improve the positioning reliability of the flange, the guiding and fixing assembly further includes a flange gripper 23, which is fixedly connected to the end clamping plate and the axial guide rod 21, and the flange to be docked is clamped and fixed to the flange gripper 23. The flange gripper 23 is fixedly connected to the end clamping plate and the axial guide rod 21, and is used to clamp and fix the flange to be docked, improving the positioning reliability of the flange and ensuring the accurate position of the flange during the docking process. The flange gripper 23 plays a key role in the guiding and fixing assembly, contributing to improving the stability and accuracy of the entire flange docking system. Among them, the flange gripper 23 is fixedly connected to the end limiting plate 22 through a connecting rod 48.

[0082] Specifically, the flange gripper 23 includes a gripper frame 231, positioning blocks 233 and a positioning power member; among them, the gripper frame has a flange accommodating space 232 for accommodating the flange; the gripper frame is of a portal structure, and a through hole is provided at the bottom of the gripper frame, and the axial guide rod 21 passes through the through hole to install the gripper frame on the axial guide rod 21. The gripper frame is of a double-layer plate structure to increase the structural strength. Reinforcing columns are arranged between the two layers of plates, and the two layers of plates are detachably connected by bolts. The positioning blocks 233 are in two groups, and the two positioning blocks 233 are respectively arranged on the opposite inner side walls of the flange accommodating space 232; the positioning blocks 233 are specifically of an annular frame structure, and the inner side wall of the annular frame abuts against the positioning pins on the flange to achieve snap-fitting and fixing; the positioning power member drives the two positioning blocks 233 to move in the direction of approaching or separating from each other. When the two positioning blocks 233 are in the state of approaching each other, they are snap-fitted and fixed with the positioning pins on the outer circumference of the flange; the positioning power member can be an oil cylinder, one end of the oil cylinder is installed on the positioning block 233, and the other end is installed on the gripper frame. When the docking system reaches the designated position, the oil cylinder serving as the positioning power member pushes the annular frame structure to extend, so as to abut against the positioning pins on the flange through the inner side wall of the annular frame structure for fixing. Theoretically speaking, the positioning power member can also be in the form of a cylinder, an electric telescopic cylinder, etc.

[0083] The positioning block 233 is used to ensure the accurate position of the flange during the docking process. In addition to the above-mentioned specific structural forms, the positioning block 233 can also be a plane positioning block, a V-shaped positioning block, a T-shaped positioning block, an adjustable positioning block 3 and a combined positioning block; among them, the plane positioning block is a simple plane structure, which is arranged on the clamp frame, and when the flange reaches the specified position, it is positioned against the plane positioning block; the two sides of the V-shaped positioning block are V-shaped and are arranged on the clamp frame, which can better adapt to the edge of the flange and provide stable positioning support; the T-shaped positioning block has a vertical column and two horizontal wing plates, which can ensure the accurate position of the flange in the horizontal and vertical directions; the adjustable positioning block can be adjusted to adapt to flanges of different sizes, providing a flexible positioning solution; the combined positioning block is composed of a plurality of positioning blocks of different shapes or sizes, which can be used in combination as needed to adapt to different flange sizes and shapes.

[0084] In some embodiments, Figures 5 - 12 As shown, the nut mounting frame 31 includes a frame body 311 and a first clamping arm 312; wherein, the frame body 311 includes a gate-type portion 431 and a connecting arm, the connecting arm is transmission-connected to the guide fixing assembly through a second longitudinal driving mechanism, and a plurality of nuts 200 to be installed are arranged at intervals in the gate-type portion 431; the first clamping arm 312 is swingably mounted on the frame body 311, and there are two first clamping arms 312, and the two first clamping arms 312 and the gate-type portion 431 enclose a first pipeline accommodating space 38, and the two first clamping arms 312 open and close under the action of the clamping power member to allow the sea pipe to be repaired to enter and exit the first pipeline accommodating space 38; that is, when the two first clamping arms 312 are opened, the sea pipe can enter the first pipeline accommodating space 38, and after the sea pipe enters, the two first clamping arms 312 rotate in the opposite direction to close. Specifically, one end of the first clamping arm 312 is connected to the pin shaft of the frame body 311, so that the first clamping arm 312 can rotate around the pin shaft relative to the frame body 311 under the drive of the cylinder. There is also a nut 200 on the first clamping arm 312. The nuts 200 on the first clamping arm 312 and the door-type part 431 constitute all the nuts 200 required for flange installation.

[0085] The rotating power member 32 of the nut installation assembly 30 is a motor, and each nut 200 corresponds to a motor and a set of transmission members. During the tightening process of the nut 200, all the rotating power members 32 move synchronously to tighten the nuts 200 synchronously. The configuration of a motor and a transmission member for each nut 200 can reduce the structural complexity of the transmission system and facilitate the layout of the equipment. Theoretically, multiple or all nuts 200 can also share the same motor, in which case a gear transmission group is required to make all nuts 200 move synchronously.

[0086] The second longitudinal power mechanism of the nut mounting assembly 30 is an oil cylinder, the cylinder rod of the oil cylinder is connected to the axial guide rod 21, the cylinder barrel is sleeved on the outer periphery of the cylinder rod, and the nut mounting assembly 30 is fixed to the cylinder barrel through a first mounting seat 39 arranged on the connecting arm; in this way, the oil cylinder adopts a structural form in which the cylinder rod passes through the cylinder barrel to reduce the risk of bending of the cylinder rod caused by a large extended length.

[0087] In some embodiments, Figures 13 - 22 The frame 311 of the screw mounting assembly 40 shown is connected to a second mounting seat 46, and a clamp 47 is provided at the bottom of the second mounting seat 46. The cylinder of the second longitudinal power mechanism is clamped by the clamp 47 to achieve a fixed connection between the cylinder and the screw mounting assembly 40, thereby improving the installation reliability and convenience between the screw mounting assembly 40 and the axial guide rod 21.

[0088] The transmission member of the screw mounting assembly 40 includes a sleeve 34, a lever 35 and a dial 36. A nut 200 to be installed is installed at one end of the sleeve 34, and the lever 35 is installed at the other end of the sleeve 34; the lever 35 is fixedly connected to the rotating power member 32, and a strip hole is provided on the dial 36, and the lever 35 passes through the strip hole. After the rotating power member 32 is started, the lever 35 is driven to rotate, thereby driving the dial 36 to rotate, and then driving the sleeve 34 and the nut 200 on the sleeve 34 to rotate, thereby achieving tightening. The form of the strip hole can avoid impact during startup and play a buffering role. The above-mentioned frame 311 can be a double-layer structure, with a connecting plate installed between the two layers of plates, and the dial 36 is located between the two layers of plates.

[0089] Specifically, the first longitudinal power mechanism is an oil cylinder, which adopts a structural form in which a cylinder rod passes through a cylinder barrel to reduce the risk of bending of the cylinder rod caused by a large extension length. The cylinder rod of the oil cylinder is connected to the axial guide rod 21, and the cylinder barrel is sleeved on the outer periphery of the cylinder rod, and the cylinder rod passes through the cylinder barrel. The frame 311 of the screw mounting assembly 40 is connected to the second mounting seat 46, and a clamp 47 is provided at the bottom of the second mounting seat 46. The clamp 47 clamps the cylinder barrel to achieve a fixed connection between the cylinder barrel and the screw mounting assembly 40. The cylinder barrel moves along the cylinder rod, driving the entire screw mounting assembly 40 to move.

[0090] Theoretically, the first longitudinal power mechanism 41 generally refers to a component that provides longitudinal thrust in the flange docking system, which can be various mechanical devices, such as a hydraulic cylinder, an electric push rod, a pneumatic actuator, or a manual operating device. Its main function is to generate sufficient force to ensure tight docking between flanges and to be able to separate them when necessary. In addition to the above-mentioned structural forms, the first longitudinal power mechanism 41 can also be an electric push rod, and generate thrust through mechanical transmission methods such as a screw, gear or belt; it can also be a pneumatic actuator, which uses compressed air as a power source and generates thrust through a cylinder or an air motor.

[0091] In some embodiments, the screw mounting assembly 40 includes a moving frame 42 and a screw mounting frame 43. Among them, the moving frame 42 is mounted on the guiding and fixing assembly. Specifically, mounting angle plates are provided at the bottom of the moving frame 42, and the moving frame 42 is mounted on the axial guide rod 21 through the mounting angle plates; the screw mounting frame 43 is detachably mounted on the moving frame 42 through a fixing assembly, and the screw 100 to be installed is mounted on the screw mounting frame 43. The screw mounting frame 43 has an avoidance space for the subsea pipeline to be repaired to pass through.

[0092] The screw mounting frame 43 includes a portal part 431 and a second clamping arm 432. The portal part 431 is detachably mounted on the moving frame 42 through a fixing assembly, and multiple screws 100 to be installed are arranged at intervals on the portal part 431; the second clamping arm 432 is swingably mounted on the portal part 431. There are two second clamping arms 432, and the two second clamping arms 432 and the portal part 431 enclose a second pipeline accommodating space 412. The two second clamping arms 432 open and close under the action of a clamping power component to enable the subsea pipeline to be repaired to enter and exit the second pipeline accommodating space 412. Specifically, one end of the second clamping arm 432 is pin-connected to the portal part 431, and the second clamping arm 432 is clamped by the pin rod of the movable jaw of the rear motor bracket 45. The movable jaw of the rear motor bracket 45 acts under the drive of an oil cylinder and drives 432 through the pin rod; among them, screws 100 are also provided on the second clamping arm 432, and the number and positions of the screws 100 are matched with the nuts 200.

[0093] After the connector is fixed to the subsea pipeline, the screw 100 and the screw mounting frame 43 for mounting the screw 100 need to remain underwater. In order to reduce the consumption of consumables and save costs, the moving frame 42 can be separated from the screw mounting frame 43 and reused. The screw mounting frame 43 and the moving frame 42 are of a detachable connection structure, and this detachable connection is realized through a fixing assembly. The fixing assembly can be a buckle or a bolt, etc. In order to reduce the operation difficulty.

[0094] Preferably, the fixing assembly includes a guiding structure 49. There are three groups of guiding structures 49, which are respectively arranged on both sides and the end of the connection between the moving frame 42 and the screw mounting frame 43. Each group of guiding structures 49 includes two guiding plates, and a guiding groove is formed between the two guiding plates. During the installation process, the screw mounting frame 43 is inserted into the guiding grooves on both sides and is clamped and fixed in the guiding groove at the end after being installed in place to realize guiding and positioning during the installation process.

[0095] The fixing assembly also includes a claw 410 mounted on the mobile frame 42 and a post 411 mounted on the screw mounting frame 43. The fixed end of the claw 410 is rotatably mounted on the mobile frame 42. The mobile end of the claw 410 is hooked or separated from the post 411. The fixed end and the mobile end of the claw 410 are connected to the oil cylinder, and under the action of the oil cylinder, the fixed end of the claw 410 rotates around the connecting shaft on the mobile frame 42, so that the mobile end of the claw 410 is hooked or separated from the post 411. After the screw mounting frame 43 is inserted into the guide groove on the mobile frame 42 and positioned, the hydraulic cylinder drives the claw 410 to rotate and hook with the post 411 on the screw mounting frame 43 to achieve installation, and reverse rotation to achieve unhooking can achieve separation. There are fixing mechanisms on both sides of the plate body of the mobile frame 42, which move synchronously under the action of the oil cylinder.

[0096] In some embodiments, the flange docking system provided by the present invention further includes a tensioner 44, which is sleeved on the screw 100 to be installed, and includes a tensioning cylinder and a tensioning nut 416. The tensioning nut 416 and the nut 200 are sleeved on both ends of the screw 100 respectively, and the nut 200 is fixed after being tightened. After the screw 100 is tightened, the tensioning nut 416 is tightened by a tensioning motor. Specifically, a tensioner 44 is sleeved on each screw 100, and the tensioner 44 can be regarded as a small oil cylinder. When oil is fed, the tensioning piston rod moves relative to the tensioning cylinder, thereby tightening the tensioning nut 416, and then pushing the screw 100 to tighten in the direction of the nut 200. Usually, the tightening of the tensioning nut 416 on the screw 100 is achieved through repeated tightening-tensioning actions.

[0097] In some embodiments, the flange docking system provided by the present invention further includes a rear motor bracket 45, which is axially movably mounted on the guide fixing assembly, and the tensioning motor is mounted on the rear motor bracket 45. Since during operation, when the tensioner 44 tightens the screw rod 100, the tightening nut 416 will be displaced along the screw rod 100, in order to ensure the axial movement of the tensioner, the tightening motor 413 is installed through the rear motor bracket 45, and the tightening motor 413 drives the dial plate 414 to rotate, and the dial claw on the dial plate 414 drives the rod 415 installed on the tightening nut 416, so that the tightening nut 416 rotates to tighten the screw rod 100. The rear motor bracket 45 is movable relative to the axial guide rod 21 and can move with the tensioner.

[0098] Specifically, the first longitudinal power mechanism is an oil cylinder, which adopts a structural form in which a cylinder rod passes through a cylinder barrel to reduce the risk of bending of the cylinder rod caused by a large extension length. The cylinder rod of the oil cylinder is connected to the axial guide rod 21, and the cylinder barrel is sleeved on the outer periphery of the cylinder rod, and the cylinder rod passes through the cylinder barrel. The frame 311 of the screw mounting assembly 40 is connected to the first mounting seat 39. A clamp 47 is provided at the bottom of the first mounting seat 39. The clamp 47 clamps the cylinder barrel to achieve a fixed connection between the cylinder barrel and the screw mounting assembly 40. The cylinder barrel moves along the cylinder rod, driving the entire screw mounting assembly 40 to move.

[0099] The first longitudinal power mechanism 41 of the screw mounting assembly 40 provides longitudinal thrust for the screw mounting frame 43 , and similar to the second longitudinal power mechanism 33 , it may be a hydraulic cylinder, an electric push rod, a pneumatic actuator, or the like.

[0100] In addition to the above-mentioned flange docking system, the present invention also provides a connector docking device including the flange docking system. For the structure of other parts of the connector docking device, please refer to the prior art and will not be described in detail here.

[0101] In the above-mentioned specific embodiment, the flange docking system provided by the present invention is used for a connector docking device, and the connector docking device includes a mounting frame, and the flange docking system includes a guide fixing assembly, a screw mounting assembly 40 and a nut mounting assembly 30; wherein, the flange to be docked is fixed to the guide fixing assembly, and the screw mounting assembly 40 moves along the guide fixing assembly toward or away from the flange under the drive of the first longitudinal power mechanism; the nut mounting assembly 30 moves along the guide fixing assembly toward or away from the flange under the drive of the second longitudinal power mechanism 33; the nut mounting assembly 30 includes a nut mounting frame 31, a transmission member rotatably mounted on the nut mounting frame 31, and a rotating power member 32 transmission-connected to the transmission member, and the nut 200 to be installed is rotatably mounted on the nut mounting frame 31 through the transmission member, and rotates under the drive of the rotating power member 32.

[0102] During the working process, the mounting frame drives the flange docking system and the connector into the water. After the mounting frame completes the positioning with the pipe frame, the flange to be docked is fixed by the guide fixing assembly, and then the screw mounting assembly 40 is driven to move along the guide fixing assembly toward the direction close to the flange, and the screw 100 carried by the screw mounting assembly 40 passes through the flange; the nut mounting assembly 30 is driven to move toward the direction close to the flange, and after the nut 200 is sleeved on the screw 100, the nut 200 is tightened by the action of the rotating power part 32 and the transmission part. Thus, the installation of the flange screw 100 and the tightening of the flange nut 200 are realized, thereby ensuring the automatic installation of the flange and improving the convenience of flange installation.

[0103] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A flange docking system for a connector docking device, the connector docking device comprising a mounting frame, characterized in that: The flange docking system comprises: A guide and fixing assembly, the guide and fixing assembly comprising: An axial guide rod, both ends of which are respectively mounted on the vertical guide rods of the mounting frame; A flange clamp, the flange clamp is fixedly connected to the axial guide rod, and the flange to be docked is clamped and fixed to the flange clamp; A screw mounting assembly, on which a screw is detachably mounted, and driven by a first longitudinal power mechanism, the screw mounting assembly moves along the guide fixing assembly toward or away from the flange; A nut installation assembly, wherein the nut installation assembly is driven by the second longitudinal power mechanism to move along the guide fixing assembly toward or away from the flange; The first longitudinal power mechanism and the second longitudinal power mechanism are both oil cylinders, the oil cylinder is a structure in which a cylinder rod passes through a cylinder barrel, the cylinder rod is fixedly connected to the axial guide rod, and the nut mounting assembly and the screw mounting assembly are respectively fixed on the cylinder barrel of the corresponding oil cylinder.

2. The flange docking system according to claim 1, characterized in that: There are two axial guide rods, which are spaced apart in the width direction, and the screw mounting assembly, the nut mounting assembly, the flange and the connector are all arranged between the two axial guide rods.

3. The flange docking system according to claim 2, characterized in that: The guide fixing assembly also includes: An end limit plate is fixed to the axial guide rod, and the end limit plate is arranged on a side of the screw mounting assembly away from the nut mounting frame, and the flange clamp is fixedly connected to the end limit plate by a connecting rod.

4. The flange docking system according to claim 3, characterized in that: Four vertical guide rods are arranged on the mounting frame. Scale lines are arranged on the vertical guide rods. Rings are arranged at the ends of the axial guide rods. The rings are sleeved on the vertical guide rods.

5. The flange docking system according to claim 4, characterized in that: The flange holder comprises: A clamp frame having a flange accommodating space for accommodating the flange; Positioning blocks, the positioning blocks are in two groups, and the two positioning blocks are respectively arranged on the inner side walls opposite to each other of the flange accommodating space; A positioning power member drives the two positioning blocks to move toward or away from each other. When the two positioning blocks are in a state of approaching each other, they are clamped and fixed with the positioning pins on the outer periphery of the flange.

6. The flange docking system according to claim 5, characterized in that: The clamp frame is a gate-type structure, and a through hole is provided at the bottom of the clamp frame, and the axial guide rod passes through the through hole, so that the clamp frame is installed on the axial guide rod.

7. The flange docking system according to claim 5, characterized in that: The clamp frame is a double-layer plate structure, a reinforcing column is arranged between the two layers of plates, and the two layers of plates are detachably connected by bolts.

8. The flange docking system according to any one of claims 1 to 7, characterized in that: Also includes: A stretcher is sleeved on the screw to be installed. The stretcher comprises a stretching cylinder and a stretching nut. The stretching nut is arranged at one end of the screw away from the nut to be installed. After the screw is tightened, the stretching nut is tightened by a stretching motor.

9. The flange docking system according to claim 8, characterized in that: Also includes: A rear motor bracket is axially movably mounted on the guide fixing assembly, and the stretching motor is mounted on the rear motor bracket.

10. A connector docking device, characterized in that: include: The flange docking system according to any one of claims 1 to 9; The mounting frame is provided with the flange docking mechanism mounted on the mounting frame.

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