A main hoisting point laying device for a submerged arc welding suction anchor

Abstract

The application discloses a kind of buried-arc welding suction anchor main lifting point laying device, which includes main frame and inner arc lifting point, the inner arc lifting point is fixedly arranged at both ends of the main frame, the inner arc lifting point is connected with sling, so as to set the main frame on the tire rotating assembly, a rectangular opening is formed in the main frame, a suction anchor arc plate is abutted at the rectangular opening, and a suction anchor main lifting point is arranged on the suction anchor arc plate; the main frame is provided with a welding machine walking guide plate connected with the inner arc lifting point on one side, a submerged arc welding machine is arranged on the welding machine walking guide plate to weld the suction anchor main lifting point on the suction anchor arc plate; the main frame is provided with an outer arc lifting point on the side away from the inner arc lifting point, and the main frame abutting on the tire rotating assembly is lifted by the outer arc lifting point. The buried-arc welding suction anchor main lifting point laying device provided by the application provides a welding path for the submerged arc welding machine, and realizes the function of full-position welding arc direction welding of the equipment.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of offshore oil engineering, and particularly relates to a buried-arc-welded suction anchor main lifting point laying device. BACKGROUND

[0002] As a seabed anchoring device, the suction anchor is widely used in the offshore oil industry, and the most difficult welding point in construction is the welding of the main lifting point. The main lifting point of the suction anchor has the same curvature as the cylinder of the suction anchor, is externally provided with a D-shaped buckle, and is internally provided with a transverse mud cutting plate. The shape is irregular, the center of gravity is high, and the whole is embedded and welded on the cylindrical cylinder of the suction anchor.

[0003] At present, manual gas shielded welding is always used for the welding of the structure, which has the advantages of flexibility and convenience, and is less affected by the welding position and welding angle. However, the disadvantages are also obvious. Firstly, the construction efficiency of manual gas shielded welding is not high. Secondly, more personnel are needed for simultaneous operation. Thirdly, manual gas shielded welding often produces welding defects such as cracks, pores and slag inclusion, and the repair is relatively complicated, which becomes a difficulty in the construction of the suction anchor.

[0004] In order to improve the welding efficiency and reduce the welding defects, a buried-arc-welding suction anchor main lifting point is developed. However, due to the irregular shape of the main lifting point of the suction anchor, the buried-arc-welding has requirements for the welding position, and the buried-arc-welding cannot be applied on site.

[0005] Therefore, it is urgent to design a buried-arc-welding suction anchor main lifting point laying device to solve the above-mentioned problems of buried-arc-welding of the main lifting point of the suction anchor. SUMMARY

[0006] In order to solve the technical problems of the irregular shape of the main lifting point of the suction anchor, the requirements of the buried-arc-welding for the welding position, and the inability to apply the buried-arc-welding on site mentioned in the background, a buried-arc-welding suction anchor main lifting point laying device is provided to solve the problem of buried-arc-welding of the main lifting point of the suction anchor.

[0007] To achieve the above-mentioned purpose, the specific technical scheme of the buried-arc-welding suction anchor main lifting point laying device of the present application is as follows:

[0008] A buried-arc-welding suction anchor main lifting point laying device, comprising a main frame and an inner arc lifting point, the inner arc lifting point is fixedly arranged at both ends of the main frame, the inner arc lifting point is connected with a lifting cable to set the main frame on a tire rotating assembly, a rectangular opening is formed in the main frame, a suction anchor arc plate is abutted at the rectangular opening, and a suction anchor main lifting point is arranged on the suction anchor arc plate; a welding machine walking guide plate is connected to one side of the main frame where the inner arc lifting point is arranged, a buried-arc-welding machine is arranged on the welding machine walking guide plate to weld the suction anchor main lifting point on the suction anchor arc plate; an outer arc lifting point is arranged on the side of the main frame away from the inner arc lifting point, and the main frame abutted on the tire rotating assembly is lifted by the outer arc lifting point.

[0009] Further, the main frame is in the shape of a circular arc, one side of the circular arc of the main frame abuts against the tire rotating assembly, so that the main frame rotates on the tire rotating assembly.

[0010] Further, a rectangular opening is formed at the center of the main frame, and a suction anchor circular arc plate abuts against the rectangular opening.

[0011] Further, inner arc lifting points are respectively welded on both sides of the rectangular opening, and the two inner arc lifting points are symmetrically arranged along the central axis of the main frame.

[0012] Further, one end of the inner arc lifting point welded to the main frame is a first rectangular plate, and the other end of the inner arc lifting point away from the main frame is a first round corner transition plate, and a U-shaped clamp is connected to the first round corner transition plate.

[0013] Further, welding machine walking guide plates are symmetrically welded on the main frame, and the two welding machine walking guide plates are symmetrically arranged along the central axis of the main frame.

[0014] Further, the welding machine walking guide plate comprises a support plate and an arc-shaped rectangular plate, and the support plate is welded on the main frame away from the arc-shaped rectangular plate, so that the submerged arc welding machine abuts against the arc-shaped rectangular plate.

[0015] Further, a plurality of outer arc lifting points are welded on the side of the main frame away from the inner arc lifting points, and the plurality of outer arc lifting points are respectively welded on the end portions of the main frame.

[0016] Further, one end of the outer arc lifting point welded to the main frame is a second rectangular plate, and the other end of the outer arc lifting point away from the main frame is a second round corner transition plate, and a U-shaped clamp is connected to the second round corner transition plate.

[0017] Further, fixed lifting points are arranged on both sides of the main frame, and the fixed lifting points are connected with lifting ropes, so that the main frame is stably placed after rotating.

[0018] The suction anchor main lifting point laying device for submerged arc welding has the following advantages:

[0019] By directly contacting the main frame with the tire rotating assembly, rotation on the tire rotating assembly is realized, the inner arc lifting point can quickly pass the suction anchor circular arc plate abutting against the main frame to the tire rotating assembly by the crane, the suction anchor main lifting point is lifted to the suction anchor circular arc plate, the suction anchor main lifting point is inlaid in the suction anchor circular arc plate, and submerged arc welding is realized after the suction anchor main lifting point and the suction anchor circular arc plate are matched. The main frame of the present application cooperates with the crane to realize the position fixing of the main frame after rotating to a certain position, the welding machine walking guide plate provides a welding path for the submerged arc welding machine, and realizes the function of full-position arc welding of the device. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1The overall structure schematic diagram of the main lifting point laying device for the submerged arc welding suction anchor of the application;

[0021] Figure 2 The top view of the main lifting point laying device for the submerged arc welding suction anchor of the application;

[0022] Figure 3 The front view of the main lifting point laying device for the submerged arc welding suction anchor of the application.

[0023] Marking description in the figure:

[0024] 1, main frame; 11, rectangular opening; 2, inner arc lifting point; 3, outer arc lifting point; 4, welding machine walking guide plate; 41, support plate; 42, arc-shaped rectangular plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are some of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the application.

[0026] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means to be within the scope of the application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0027] The following refers to the drawings Figure 1 to the drawings Figure 3 The main lifting point laying device for the submerged arc welding suction anchor of the application is described.

[0028] As Figure 1 shown, the main lifting point laying device for the submerged arc welding suction anchor in the application includes a main frame 1 and an inner arc lifting point 2, the inner arc lifting point 2 is fixedly arranged at both ends of the main frame 1, the inner arc lifting point 2 is connected with a sling to set the main frame 1 on a tire turning assembly, the main frame 1 is provided with a rectangular opening 11, a suction anchor arc plate is abutted at the rectangular opening 11, and the suction anchor arc plate is provided with a suction anchor main lifting point; the main frame 1 is provided with a welding machine walking guide plate 4 connected with the inner arc lifting point 2 on one side, a submerged arc welding machine is arranged on the welding machine walking guide plate 4 to weld the suction anchor main lifting point on the suction anchor arc plate; the main frame 1 is provided with an outer arc lifting point 3 away from the inner arc lifting point 2 on the other side, and the main frame 1 abutted on the tire turning assembly is lifted through the outer arc lifting point 3.

[0029] The inner arc lifting point 2 can be quickly placed on the tire rotating assembly by the crane through the direct contact of the main frame 1 with the tire rotating assembly, the tire rotating assembly is driven to rotate the main frame 1, the main frame 1 is fixed in position after rotating to a certain position by cooperation with the crane, the welding machine walking guide plate 4 provides a welding path for the submerged arc welding machine, and the device realizes the function of full-position arc welding.

[0030] Further, as shown in Figure 1 and Figure 2 , the main frame 1 is in the shape of a circular arc, one side of the circular arc of the main frame 1 abuts against the tire rotating assembly, so that the main frame 1 rotates on the tire rotating assembly; a rectangular opening 11 is formed at the center of the main frame 1, and a suction anchor arc plate abuts against the rectangular opening 11; the inner arc lifting points 2 are respectively welded on both sides of the rectangular opening 11, and the two inner arc lifting points 2 are symmetrically arranged along the central axis of the main frame 1.

[0031] In this embodiment, preferably, the main frame 1 is a circular arc plate, one side of the main frame 1 protrudes and abuts against the tire rotating assembly, the tire rotating assembly drives the main frame 1 to rotate, so that the suction anchor main lifting point is aligned with the suction anchor arc plate for submerged arc welding.

[0032] Preferably, a rectangular opening 11 is formed at the center of the main frame 1, a suction anchor arc plate abuts against the rectangular opening 11, the size ratio of the suction anchor arc plate is greater than that of the rectangular opening 11, an opening is formed on the suction anchor arc plate, the suction anchor main lifting point is embedded in the opening, and a D-shaped handle is arranged on the suction anchor main lifting point; when the suction anchor main lifting point rotates with the main frame 1, the D-shaped handle does not contact the tire rotating assembly.

[0033] Two inner arc lifting points 2 are welded on the main frame 1, the two inner arc lifting points 2 are respectively welded between the rectangular opening 11 and the side edge of the main frame 1, and the two inner arc lifting points 2 are symmetrically arranged along the central axis of the main frame 1; when the main frame 1 is placed on the tire rotating assembly, the inner arc lifting points 2 are connected with the lifting ropes to realize the placement.

[0034] Further, as shown in Figure 1 , the welding end of the inner arc lifting point 2 welded with the main frame 1 is a first rectangular plate, the end of the inner arc lifting point 2 away from the main frame 1 is a first round corner transition plate, and a U-shaped clamp is connected to the first round corner transition plate; the main frame 1 is symmetrically welded with welding machine walking guide plates 4, the two welding machine walking guide plates 4 are symmetrically arranged along the central axis of the main frame 1; the welding machine walking guide plate 4 comprises a support plate 41 and an arc-shaped rectangular plate 42, the support plates 41 are spaced apart and welded on the lower side of the arc-shaped rectangular plate 42, and the side of the support plate 41 away from the arc-shaped rectangular plate 42 is welded on the main frame 1, so that the submerged arc welding machine abuts against the arc-shaped rectangular plate 42.

[0035] In this embodiment, preferably, the inner arc lifting point 2 is welded to the first rectangular plate at one end of the main frame 1, and the first rectangular plate of the inner arc lifting point 2 is welded with a first round corner transition plate, the first round corner transition plate is connected with a U-shaped clamp, the U-shaped clamp is connected with a sling, and a 60mm diameter hole is opened in the middle of the first round corner transition plate; the inner arc lifting point 2 is fixed at a position of 30-50mm from the edge of the main frame 1 in the length direction.

[0036] The main frame 1 is provided with a welding machine walking guide plate 4 symmetrically welded on one side of the inner arc lifting point 2, and two welding machine walking guide plates 4 are symmetrically arranged along the central axis of the main frame 1, and the welding machine walking guide plate 4 is abutted with a submerged arc welding machine, thereby realizing welding between the suction anchor main lifting point and the suction anchor arc plate.

[0037] Preferably, the welding machine walking guide plate 4 is composed of a support plate 41 and an arc-shaped rectangular plate 42, a plurality of support plates 41 are welded on the lower side of the arc-shaped rectangular plate 42 at intervals, and the plurality of support plates 41 are welded on the main frame 1 away from one side of the arc-shaped rectangular plate 42, so that the submerged arc welding machine is stably abutted on the arc-shaped rectangular plate 42 to perform submerged arc welding operation.

[0038] Further, as shown in Figure 1 and Figure 3 , a plurality of outer arc lifting points 3 are welded on the side of the main frame 1 away from the inner arc lifting point 2, and the plurality of outer arc lifting points 3 are respectively welded on the end of the main frame 1; the outer arc lifting point 3 is welded to the second rectangular plate at one end of the main frame 1, and the outer arc lifting point 3 is welded to the second round corner transition plate away from the main frame 1, and the second round corner transition plate is connected with a U-shaped clamp; the main frame 1 is provided with a fixed lifting point on both sides, and the fixed lifting point is connected with a sling, so that the main frame 1 is stably placed after being rotated.

[0039] In this embodiment, preferably, a plurality of outer arc lifting points 3 are welded on the side of the main frame 1 away from the inner arc lifting point 2, and the plurality of outer arc lifting points 3 are respectively welded on the end of the main frame 1, and when the suction anchor main lifting point and the suction anchor arc plate are assembled and welded, the outer arc lifting point is connected with a sling to realize the separation of the main frame 1 and the tire rotating assembly.

[0040] Preferably, the outer arc lifting point 3 is welded to the second rectangular plate at one end of the main frame 1, and the outer arc lifting point 3 is welded to the second round corner transition plate away from the main frame 1, and the second round corner transition plate is connected with a U-shaped clamp, a 60mm diameter hole is opened in the middle of the second round corner transition plate, and the U-shaped clamp is connected with a sling; the outer arc lifting point 3 is 30-50mm away from the edge of the main frame.

[0041] The main frame 1 is provided with a fixed lifting point on both sides, and preferably, when the gap between the suction anchor main lifting point and the suction anchor arc plate needs to be adjusted for welding, the fixed lifting point is connected with a sling, the sling pulls the main frame 1, so that the adjusted suction anchor main lifting point and the suction anchor arc plate remain stationary, thereby realizing submerged arc welding.

[0042] The working steps of the submersible arc welding suction anchor main hoisting point laying device are as follows:

[0043] Firstly, the main frame 1 is hoisted and laid on the tire turning assembly through the connection of the sling and the first fillet transition plate of the inner arc hoisting point 2, the suction anchor arc plate is hoisted and laid and clamped on the rectangular opening 11 of the main frame 1;

[0044] Then, the suction anchor main hoisting point is hoisted and laid, the D-shaped handle is inserted into the opening of the suction anchor arc plate, the suction anchor main hoisting point is embedded in the opening of the suction anchor arc plate, and the fixed hoisting points on both sides of the main frame 1 are pulled to rotate the main frame 1;

[0045] Finally, the submersible arc welding machine abutting on the welding machine walking guide plate 4 performs submersible arc welding on the suction anchor main hoisting point and the suction anchor arc plate after the assembly.

[0046] The submersible arc welding suction anchor main hoisting point laying device directly contacts the tire turning assembly through the main frame 1, realizes rotation on the tire turning assembly, the inner arc hoisting point 2 can conveniently hoist the suction anchor arc plate abutting on the main frame 1 to the tire turning assembly through the crane, hoist the suction anchor main hoisting point to the suction anchor arc plate, and realize the submersible arc welding of the suction anchor main hoisting point and the suction anchor arc plate after the assembly. The main frame 1 of the present application cooperates with the crane to realize the position fixing of the main frame 1 after rotating to a certain position, the welding machine walking guide plate 4 provides a welding path for the submersible arc welding machine and realizes the function of the full-position welding arc direction welding of the equipment.

[0047] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or modifications can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A submerged arc welding suction anchor main lift point laying device, characterized in that, The system includes a main frame and inner arc lifting points. The inner arc lifting points are fixedly installed at both ends of the main frame and connected to slings to set the main frame on the rotating assembly. The main frame has a rectangular opening, and a suction anchor arc plate is abutted at the rectangular opening. The suction anchor arc plate has a suction anchor main lifting point. A welding machine travel guide plate is connected to the side of the main frame with the inner arc lifting points. A submerged arc welding machine is installed on the welding machine travel guide plate to weld the suction anchor main lifting point to the suction anchor arc plate. The main frame has an outer arc lifting point on the side away from the inner arc lifting point. The main frame, which is attached to the rotating assembly, is lifted by the outer arc lifting point. The main frame is arc-shaped, and one side of the arc of the main frame abuts against the rotating assembly so that the main frame can rotate on the rotating assembly; the inner arc lifting points are welded to both sides of the rectangular opening, and the two inner arc lifting points are symmetrically arranged along the central axis of the main frame; the end of the inner arc lifting point welded to the main frame is the first rectangular plate, and the end of the inner arc lifting point away from the main frame is the first rounded corner transition plate, and a U-shaped clip is connected to the first rounded corner transition plate.

2. The submerged arc weld suction anchor main lift point layup device of claim 1, wherein, A rectangular opening is provided at the center of the main frame, and a suction anchor arc plate is abutted against the rectangular opening.

3. The submerged arc weld suction anchor main lift point layup device of claim 1, wherein, The main frame is symmetrically welded with welding machine travel guide plates, and the two welding machine travel guide plates are symmetrically arranged along the central axis of the main frame.

4. The submerged arc weld suction anchor main lift point layup device of claim 3, wherein, The welding machine travel guide plate includes a support plate and an arc-shaped rectangular plate. The support plate is welded at intervals on the lower side of the arc-shaped rectangular plate. The side of the support plate away from the arc-shaped rectangular plate is welded to the main frame so that the submerged arc welding machine abuts against the arc-shaped rectangular plate.

5. The submerged arc weld suction anchor main lift point deployment device of claim 1, wherein, Multiple outer arc lifting points are welded to the side of the main frame away from the inner arc lifting points, and these multiple outer arc lifting points are welded to the ends of the main frame respectively.

6. The submerged arc weld suction anchor main lift point layup device of claim 5, wherein, The outer arc lifting point is welded to the main frame at one end as a second rectangular plate, and the outer arc lifting point away from the main frame at the other end is a second rounded corner transition plate, with a U-shaped clip connected to the second rounded corner transition plate.

7. The submerged arc weld suction anchor main lift point laydown device of claim 5, wherein, The main frame is equipped with fixed lifting points on both sides, which are connected to slings to ensure stable placement after the main frame is rotated.

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