Connector butting equipment and nut mounting assembly

Abstract

The utility model discloses a connector butt joint device and a nut installation assembly. The nut installation assembly is driven by a second longitudinal power mechanism to move in the direction close to or away from a flange along a guide fixing assembly; the nut installation assembly comprises a nut installation frame, a transmission part rotationally installed on the nut installation frame and a rotating power part in transmission connection with the transmission part, and a nut to be installed is rotationally installed on the nut installation frame through the transmission part and is driven by the rotating power part to rotate. In the working process, after the screw penetrates through the flange, the second longitudinal power mechanism drives the nut mounting assembly to move in the direction close to the flange, after the nut is arranged on the screw in a sleeving mode, the nut is tightened under the action of the rotating power piece and the transmission piece, and therefore tightening of the flange nut is achieved.

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 nut installation component. 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 the fields of special transportation and fluid transportation. During use, there are many reasons that may cause pipeline damage. For example, due to long-term exposure to seawater and other corrosive environments, the pipeline may be corroded and worn, affecting its structural integrity and function; at the same time, submarine earthquakes, landslides, anchoring accidents or other underwater activities may cause external impacts on the pipeline, causing damage or rupture; and long-term exposure to pressure and temperature changes, as well as dynamic loads such as ocean currents, may cause pipeline material fatigue, thereby causing cracks or fractures.

[0003] In order to replace a damaged subsea pipeline, the existing technology mostly uses a connector to replace the damaged section of the subsea pipeline. After the subsea pipeline is inserted into the connector, it needs to be tightened by tightening the flange of the connector. During the flange installation process, how to install and tighten the nut has become a problem that needs to be solved urgently by technical personnel in this field. Utility Model Content

[0004] The purpose of the utility model is to provide a connector docking device and a nut installation assembly, so as to realize the installation and tightening of flange nuts. This purpose is achieved through the following technical solutions:

[0005] The utility model provides a nut installation assembly for a connector docking device, the connector docking device comprising a guide fixing assembly and a flange to be docked and installed on the guide fixing assembly and a screw installation assembly, a screw being installed on the screw installation assembly, and the nut installation assembly comprising:

[0006] A nut mounting frame, the nut mounting frame is transmission-connected to the second longitudinal power mechanism and moves along the guide fixing assembly toward or away from the flange under the drive of the second longitudinal power mechanism;

[0007] A transmission member, the transmission member being rotatably mounted on the nut mounting bracket;

[0008] A rotating power member is in transmission connection with the transmission member, and the nut to be installed is rotatably installed on the nut mounting frame through the transmission member and rotates under the drive of the rotating power member.

[0009] In some embodiments, the nut mounting bracket comprises:

[0010] A frame body, the frame body being transmission-connected to the second longitudinal power mechanism;

[0011] The first clamping arm is swingably mounted on the frame, there are two first clamping arms, the two first clamping arms and the door-type portion enclose a first pipeline accommodating space, and the two first clamping arms open and close under the action of the clamping power member to allow the sea pipeline to be repaired to enter and exit the first pipeline accommodating space.

[0012] In some embodiments, one end of the first clamping arm is connected to a pin shaft of the frame body, and the first clamping arm is driven by a motor to rotate around the pin shaft relative to the frame body to open and close the first clamping arm.

[0013] In some embodiments, the frame comprises:

[0014] a door-type portion, on which a nut to be installed is arranged;

[0015] A connecting arm is transmission-connected to the guide and fixing assembly via a second longitudinal driving mechanism.

[0016] In some embodiments, nuts to be installed are arranged on the gate portion and the first clamping arm.

[0017] In some embodiments, the transmission member includes:

[0018] A sleeve, one end of which is provided with a nut to be installed;

[0019] A lever, the lever being mounted on the other end of the sleeve;

[0020] The dial is fixedly connected to the rotating power member, and a strip hole is provided on the dial, through which the shifting rod passes.

[0021] In some embodiments, the rotating power component is a motor, and each nut to be installed corresponds to a motor and a set of transmission components. During the tightening process of the nut, all the rotating power components move synchronously so that the nuts are tightened synchronously.

[0022] In some embodiments, the second longitudinal power mechanism is a cylinder.

[0023] In some embodiments, the cylinder rod of the oil cylinder is connected to the axial guide rod of the guide fixing assembly, the cylinder barrel is sleeved on the outer periphery of the cylinder rod, the cylinder rod axially penetrates the cylinder barrel, and the connecting arm is fixed to the cylinder barrel through a first mounting seat.

[0024] The utility model also provides a connector docking device, comprising:

[0025] A nut mounting assembly as described above;

[0026] A mounting frame, wherein the nut mounting assembly is mounted on the mounting frame.

[0027] The nut installation assembly provided by the utility model is used for the connector docking device. The nut installation assembly moves along the guide fixing assembly towards or away from the flange under the drive of the second longitudinal power mechanism. The nut installation assembly includes a nut mounting frame, a transmission member rotatably mounted on the nut mounting frame, and a rotating power member connected to the transmission member. The nut to be installed is rotatably mounted on the nut mounting frame through the transmission member, and rotates under the drive of the rotating power member. 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 catheter frame, the flange to be docked is fixed by the guide fixing assembly, and then the screw mounting assembly is driven to move along the guide fixing assembly towards the flange, and the screw carried by the screw mounting assembly passes through the flange; the nut mounting assembly is driven to move towards the flange, and after the nut is sleeved on the screw, the nut is tightened by the action of the rotating power member and the transmission member, thereby realizing the tightening of the flange nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0029] Figure 1 This is one of the structural schematic diagrams of a specific implementation method of the flange docking system provided by the utility model;

[0030] Figure 2 This is a second structural schematic diagram of a specific implementation method of the flange docking system provided by the utility model;

[0031] Figure 3 This is a third structural schematic diagram of a specific implementation method of the flange docking system provided by the utility model;

[0032] Figure 4 A fourth structural schematic diagram of a specific implementation method of the flange docking system provided by the utility model;

[0033] Figure 5 This is one of the structural schematic diagrams of a specific implementation of a nut installation assembly in the flange docking system provided by the utility model;

[0034] Figure 6 This is a second structural schematic diagram of a specific implementation method of a nut installation assembly in a flange docking system provided by the utility model;

[0035] Figure 7 This is a third structural schematic diagram of a specific implementation method of a nut installation assembly in a flange docking system provided by the utility model;

[0036] Figure 8 This is a fourth structural schematic diagram of a specific implementation method of a nut installation assembly in a flange docking system provided by the utility model;

[0037] Fig. 9 This is a fifth structural schematic diagram of a specific implementation method of a nut installation assembly in a flange docking system provided by the utility model;

[0038] Fig.10 This is a sixth structural schematic diagram of a specific implementation method of a nut installation assembly in a flange docking system provided by the utility model;

[0039] Fig.11 This is a seventh structural schematic diagram of a specific implementation method of a nut installation assembly in a flange docking system provided by the utility model;

[0040] Fig.12 This is a structural schematic diagram eight of a specific implementation method of a nut installation assembly in a flange docking system provided by the utility model;

[0041] Fig.13 This is one of the structural schematic diagrams of a specific implementation method of a screw installation assembly in the flange docking system provided by the utility model;

[0042] Fig.14 This is a second structural schematic diagram of a specific implementation method of a screw installation assembly in the flange docking system provided by the utility model;

[0043] Fig.15 This is a third structural schematic diagram of a specific implementation method of a screw installation assembly in the flange docking system provided by the utility model;

[0044] Fig.16 This is a fourth structural schematic diagram of a specific implementation method of a screw installation assembly in the flange docking system provided by the utility model;

[0045] Fig.17 This is a fifth structural schematic diagram of a specific implementation method of a screw installation assembly in the flange docking system provided by the utility model;

[0046] Fig.18 This is a sixth structural schematic diagram of a specific implementation method of a screw installation assembly in the flange docking system provided by the utility model;

[0047] Fig.19This is a seventh structural schematic diagram of a specific implementation method of a screw installation assembly in the flange docking system provided by the utility model;

[0048] Fig. 20 This is a structural schematic diagram eight of a specific implementation method of a screw installation assembly in the flange docking system provided by the utility model;

[0049] Fig.21 A ninth structural diagram of a specific implementation method of a screw installation assembly in a flange docking system provided by the utility model;

[0050] Fig. 22 This is a tenth structural schematic diagram of a specific implementation method of a screw rod installation assembly in the flange docking system provided by the utility model;

[0051] Fig.23 A partial enlarged view of a screw installation assembly in the flange docking system provided by the present invention;

[0052] Fig.24 This is the parts diagram of the tensioner.

[0053] The reference numerals are as follows:

[0054] 100-screw, 200-nut;

[0055] 21-axial guide rod, 211-collar;

[0056] 22-end limit plate;

[0057] 23-flange clamp, 231-clamp frame, 232-flange accommodating space, 233-positioning block;

[0058] 30-nut mounting assembly, 31-nut mounting frame, 311-frame, 312-first clamping arm, 32-rotating power member;

[0059] 33-second longitudinal power mechanism, 34-sleeve, 35-shift lever, 36-dial, 38-first pipeline accommodating space;

[0060] 39- first mounting seat;

[0061] 40-screw mounting assembly, 41-first longitudinal power mechanism, 42-moving frame, 43-screw mounting frame, 431-door portion;

[0062] 432-second clamping arm, 44-tensioner, 45-rear motor bracket, 46-second mounting seat, 47-clamp, 48-connecting rod;

[0063] 49-guide structure, 410-claw, 411-clamping column, 412-second pipeline accommodating space, 413-tensioning motor;

[0064] 414-push plate, 415-rod, 416-tightening nut. DETAILED DESCRIPTION

[0065] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0066] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0067] Although the terms first, second, third, etc. can be used in the text 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 can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0068] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both above and below orientations.

[0069] Please refer to Figure 1-Figure 24 The flange docking system provided by the utility model is used for connector docking equipment, and the connector docking equipment includes a mounting frame, and the flange docking system and the connector are both installed 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.

[0070] In a specific embodiment, the flange docking system provided by the utility model is used for a connector docking device, and the connector docking device includes a mounting frame, such as Figure 1-Figure 4As 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.

[0071] 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.

[0072] The guide fixing assembly includes an axial guide rod 21, and there are two axial guide rods 21. The two axial guide rods 21 are spaced apart in the width direction, and the screw mounting assembly 40, the nut mounting assembly 30, the flange, the connector and other structures are all arranged between the two axial guide rods 21; the two ends of the 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. Four vertical guide rods are arranged on the mounting frame, and there are scale lines on the vertical guide rods. A collar 211 is arranged at the end of the axial guide rod 21, and the collar 211 is mounted on the vertical guide rod to facilitate installation, and the installation height is obtained by using the scale lines.

[0073] 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.

[0074] In some embodiments, the guide and fixing assembly also includes an end limit plate 22, which is fixed to the axial guide rod 21, and the end limit plate 22 is arranged on the side of the screw mounting frame 43 away from the nut mounting frame 31; the end limit plate 22 and the clamp frame 231 are rigidly connected together by a connecting rod 48, and the end limit plate 22 and the clamp frame 231 are connected to the three 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 the screws are screwed in to realize the positioning of the piston rod and the axial guide rod 21, and once positioned, the two will not move relative to each other; a cylinder barrel is provided on the piston rod outer sleeve, and the cylinder barrel moves on the piston rod, and the cylinder stroke determines the moving range of the entire movable frame 42.

[0075] In order to improve the positioning reliability of the flange, the guide fixing assembly also includes a flange clamp 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 clamp 23. The flange clamp 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, thereby improving the positioning reliability of the flange and ensuring that the position of the flange is accurate during the docking process. The flange clamp 23 plays a key role in the guide fixing assembly and helps to improve the stability and accuracy of the entire flange docking system. Among them, the flange clamp 23 is fixedly connected to the end limit plate 22 through a connecting rod 48.

[0076] Specifically, the flange clamp 23 includes a clamp frame 231, a positioning block 233 and a positioning power member; wherein the clamp frame has a flange accommodating space 232 for accommodating the flange; the clamp frame is a door-type structure, and a through hole is provided at the bottom of the clamp frame, and the axial guide rod 21 passes through the through hole to install the clamp frame on the axial guide rod 21. The clamp frame is a double-layer plate structure to increase the structural strength, and a reinforcing column is provided 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 inner side walls opposite to the flange accommodating space 232; the positioning blocks 233 are specifically an annular frame structure, and the inner side walls of the annular frame abut against the positioning pins on the flange to achieve clamping and fixing; the positioning power member drives the two positioning blocks 233 to move in the direction of approaching or moving away from each other, and when the two positioning blocks 233 are in a state of approaching each other, they are clamped and fixed with the positioning pins on the outer periphery 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 clamp frame. When the docking system reaches the specified position, the oil cylinder as the positioning power member pushes the annular frame structure to extend, so as to abut and fix with the positioning pins on the flange through the inner side wall of the annular frame structure. Theoretically, the positioning power member can also be in the form of a cylinder, an electric telescopic cylinder, etc.

[0077] 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 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.

[0078] In some embodiments, Figure 5-Figure 12As 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 motor. The first clamping arm 312 also has a nut 200. The first clamping arm 312 and the nut 200 on the door-type part 431 constitute all the nuts 200 required for flange installation.

[0079] 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.

[0080] 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.

[0081] In some embodiments, Figure 13-Figure 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.

[0082] 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 rotating the wave dial 36, 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.

[0083] 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.

[0084] 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.

[0085] In some embodiments, the screw mounting assembly 40 includes a mobile frame 42 and a screw mounting frame 43, wherein the mobile frame 42 is installed on the guide fixing assembly, specifically, a mounting angle plate is provided at the bottom of the mobile frame 42, and the mobile frame 42 is installed on the axial guide rod 21 through the mounting angle plate; the screw mounting frame 43 is detachably mounted on the mobile frame 42 through a fixing assembly, and the screw 100 to be installed is installed on the screw mounting frame 43, and the screw mounting frame 43 has an escape space for the sea pipe to be repaired to pass through.

[0086] The screw mounting frame 43 includes a door-type portion 431 and a second clamping arm 432. The door-type portion 431 is detachably mounted on the mobile frame 42 through a fixing assembly, and a plurality of screws 100 to be installed are arranged at intervals on the door-type portion 431; the second clamping arm 432 is swingably mounted on the door-type portion 431, and there are two second clamping arms 432. The two second clamping arms 432 and the door-type portion 431 enclose a second pipeline accommodating space 412. The two second clamping arms 432 open and close under the action of the clamping power member to allow 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 door-type portion 431, and the second clamping arm 432 rotates around the pin relative to the door-type portion 431 under the drive of the clamping cylinder to open and close the second clamping arm 432, wherein a screw 100 is also provided on the second clamping arm 432, and the number and position of the screw 100 match the nut 200.

[0087] After the connector is fixed to the sea pipe, the screw 100 and the screw mounting frame 43 for mounting the screw 100 need to remain underwater. In order to reduce the amount of consumables and save costs, the mobile frame 42 can be separated from the screw mounting frame 43 and reused. The screw mounting frame 43 and the mobile frame 42 are detachably connected. The detachable connection is achieved by a fixing component, which can be a buckle or a bolt, etc. In order to reduce the difficulty of operation.

[0088] Preferably, the fixing assembly includes a guide structure 49, which is provided with three groups, respectively arranged on both sides and ends where the movable frame 42 is connected to the screw mounting frame 43. Each group of guide structures 49 includes two guide plates, and a guide groove is formed between the two guide plates. During the installation process, the screw mounting frame 43 is inserted into the guide grooves on both sides and is clamped and fixed in the guide grooves at the ends after being installed in place, so as to achieve guidance and positioning during the installation process.

[0089] 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.

[0090] 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.

[0091] In some embodiments, the flange docking system provided by the utility model 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.

[0092] 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.

[0093] The first longitudinal power mechanism 41 of the screw rod mounting assembly 40 provides longitudinal thrust for the screw rod mounting frame 43, and the second longitudinal power mechanism 33. Similarly, it can be a hydraulic cylinder, an electric push rod, a pneumatic actuator, etc.

[0094] 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.

[0095] In the above-mentioned specific embodiment, the flange docking system provided by the utility model 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.

[0096] 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.

[0097] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A nut installation assembly for a connector docking device, the connector docking device comprising a guide fixing assembly and a flange to be docked and a screw installation assembly installed on the guide fixing assembly, the screw installation assembly being installed with a screw, characterized in that: The nut mounting assembly comprises: A nut mounting frame, the nut mounting frame is transmission-connected to the second longitudinal power mechanism and moves along the guide fixing assembly toward or away from the flange under the drive of the second longitudinal power mechanism; A transmission member, the transmission member being rotatably mounted on the nut mounting frame; A rotating power member is in transmission connection with the transmission member, and the nut to be installed is rotatably installed on the nut mounting frame through the transmission member and rotates under the drive of the rotating power member.

2. The nut mounting assembly according to claim 1, characterized in that: The nut mounting frame comprises: A frame body, the frame body being transmission-connected to the second longitudinal power mechanism; The first clamping arm is swingably mounted on the frame, there are two first clamping arms, the two first clamping arms and the door-type portion of the frame form a first pipeline accommodating space, and the two first clamping arms open and close under the action of the clamping power member to allow the sea pipeline to be repaired to enter and exit the first pipeline accommodating space.

3. The nut mounting assembly according to claim 2, characterized in that: One end of the first clamping arm is connected to the frame body pin shaft, and the first clamping arm rotates around the pin shaft relative to the frame body under the drive of the motor to open and close the first clamping arm.

4. The nut mounting assembly according to claim 2, characterized in that: The frame comprises: a door-type portion, on which a nut to be installed is arranged; A connecting arm is transmission-connected to the guide and fixing assembly via a second longitudinal driving mechanism.

5. The nut mounting assembly according to claim 3, characterized in that: Nuts to be installed are arranged on the gate portion and the first clamping arm.

6. The nut installation assembly according to any one of claims 1 to 5, characterized in that: The transmission member comprises: A sleeve, one end of which is provided with a nut to be installed; A lever, the lever being mounted on the other end of the sleeve; The dial is fixedly connected to the rotating power member, and a strip hole is provided on the dial, through which the shifting rod passes.

7. The nut mounting assembly according to claim 6, characterized in that: The rotating power part is a motor, and each nut to be installed corresponds to a motor and a set of transmission parts. During the tightening process of the nut, all the rotating power parts move synchronously to tighten the nuts synchronously.

8. The nut installation assembly according to any one of claims 1 to 5, characterized in that: The second longitudinal power mechanism is a cylinder.

9. The nut mounting assembly according to claim 8, characterized in that: The cylinder rod of the oil cylinder is connected to the axial guide rod of the guide fixing assembly, the cylinder barrel is sleeved on the outer periphery of the cylinder rod, the cylinder rod axially penetrates the cylinder barrel, and the connecting arm is fixed to the cylinder barrel through a first mounting seat.

10. A connector docking device, characterized in that: include: The nut mounting assembly according to any one of claims 1 to 9; A mounting frame, wherein the nut mounting assembly is mounted on the mounting frame.

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