Submerged-arc welding suction anchor main lifting point laying device

Abstract

The invention discloses a submerged-arc welding suction anchor main lifting point laying device which comprises a main frame and inner arc lifting points, the inner arc lifting points are fixedly arranged at the two ends of the main frame and connected with slings so that the main frame can be arranged on a turning tire assembly, a rectangular opening is formed in the main frame, and the rectangular opening is communicated with the inner arc lifting points. A suction anchor arc plate is connected to the rectangular opening in an abutting mode, and a suction anchor main lifting point is arranged on the suction anchor arc plate. The side, provided with the inner arc lifting point, of the main frame is connected with a welding machine walking guide plate, and a submerged arc welding machine is arranged on the welding machine walking guide plate so that the suction anchor main lifting point can be welded to the suction anchor arc plate. An outer arc lifting point is arranged on the side, away from the inner arc lifting point, of the main frame, and the main frame abutting against the tire rotating assembly is lifted through the outer arc lifting point. According to the submerged-arc welding suction anchor main lifting point laying device, the welding machine walking guide plate provides a welding path for a submerged-arc welding machine, and the effect of welding an arc-direction welding bead at all positions of equipment is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of offshore petroleum engineering, and in particular relates to a submerged arc welding suction anchor main suspension point placing device. Background Art

[0002] Suction anchors are widely used in the offshore oil industry as seabed anchoring devices. The most difficult welding point is the welding of the main lifting point. The main lifting point of the suction anchor has the same arc as the suction anchor cylinder, with a D-shaped buckle on the outside and a transverse mud cutter on the inside. It has an irregular shape and a high center of gravity. It is welded on the suction anchor cylinder as a whole. Currently, manual gas shielded welding has been used for welding of this structure. The advantages of manual welding are that it is flexible and convenient, and is less affected by the welding position and welding angle. At the same time, the disadvantages are also obvious. First, the construction efficiency of manual gas shielded welding is not high. Secondly, it requires a large number of people to work at the same time. In addition, manual gas shielded welding often produces welding defects such as cracks, pores, slag inclusions, and the repair is relatively cumbersome, which has become a difficulty restricting the construction of suction anchors.

[0003] In order to improve welding efficiency and reduce welding defects, a submerged arc process was developed to weld the main lifting points of the suction anchor. However, due to the irregular shape of the main lifting points of the suction anchor and the requirements for the welding position, submerged arc welding could not be applied on site.

[0004] Therefore, it is urgent to design a submerged arc welding suction anchor main suspension point placement device to solve the above-mentioned problem of submerged arc welding of the suction anchor main suspension point. Summary of the invention

[0005] In order to solve the technical problems mentioned in the background technology that the main hanging point of the suction anchor has irregular shape, submerged arc welding has requirements on the welding position, and submerged arc welding cannot be applied on site, a submerged arc welding suction anchor main hanging point placement device is provided to solve the problem of submerged arc welding of the main hanging point of the suction anchor.

[0006] To achieve the above purpose, the specific technical scheme of the main suspension point deployment device of the submerged arc welding suction anchor of the present invention is as follows: A device for placing main suspension points of suction anchors for submerged arc welding comprises a main frame and inner arc suspension points, wherein the inner arc suspension points are fixedly arranged at both ends of the main frame, the inner arc suspension points are connected to slings so as to place the main frame on a tire rotating assembly, a rectangular opening is opened on the main frame, a suction anchor circular arc plate is abutted at the rectangular opening, and a suction anchor main suspension point is arranged on the suction anchor circular arc plate; the main frame is provided with an inner arc suspension point on one side thereof connected to a welding machine travel guide plate, a submerged arc welding machine is arranged on the welding machine travel guide plate so as to weld the suction anchor main suspension point to the suction anchor circular arc plate; an outer arc suspension point is arranged on the side of the main frame away from the inner arc suspension point, and the main frame abutted on the tire rotating assembly is lifted by the outer arc suspension point.

[0007] Furthermore, the main frame is in an arc shape, and one side of the arc of the main frame abuts against the tire rotating assembly so that the main frame can rotate on the tire rotating assembly.

[0008] Furthermore, a rectangular opening is provided at the center of the main frame, and a suction anchor arc plate is abutted against the rectangular opening.

[0009] Furthermore, the inner arc hanging points are respectively welded on both sides of the rectangular opening, and the two inner arc hanging points are symmetrically arranged along the central axis of the main frame.

[0010] Furthermore, one end where the inner arc hanging point is welded to the main frame is a first rectangular plate, and one end where the inner arc hanging point is away from the main frame is a first rounded transition plate, and a U-shaped clip is connected to the first rounded transition plate.

[0011] Furthermore, 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.

[0012] Furthermore, the welding machine walking 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 support plate is welded to the main frame on the side away from the arc-shaped rectangular plate so that the submerged arc welding machine abuts against the arc-shaped rectangular plate.

[0013] Furthermore, a plurality of outer arc hanging points are welded to a side of the main frame away from the inner arc hanging point, and the plurality of outer arc hanging points are respectively welded to ends of the main frame.

[0014] Furthermore, one end where the outer arc hanging point is welded to the main frame is a second rectangular plate, and one end where the outer arc hanging point is away from the main frame is a second rounded transition plate, and a U-shaped clip is connected to the second rounded transition plate.

[0015] Furthermore, fixed hanging points are provided on both sides of the main frame, and the fixed hanging points are connected to the slings so that the main frame can be placed stably after being rotated.

[0016] The main suspension point placing device of the suction anchor for submerged arc welding of the present invention has the following advantages: The main frame is in direct contact with the tire to realize rotation on the tire assembly. The inner arc lifting point can facilitate the crane to quickly lift the suction anchor arc plate abutting on the main frame to the tire assembly through the crane, lift the suction anchor main lifting point to the suction anchor arc plate, and install the suction anchor main lifting point inside the suction anchor arc plate to realize the submerged arc welding after the suction anchor main lifting point and the suction anchor arc plate are assembled. The main frame of the present application cooperates with the crane to realize the position fixation of the main frame after it rotates 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 arc welding of the equipment in all positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the main suspension point placing device of the suction anchor for submerged arc welding of the present invention; Figure 2 A top view of the main suspension point placing device of the suction anchor for submerged arc welding of the present invention; Figure 3 It is a front view of the main suspension point placing device of the suction anchor for submerged arc welding of the present invention.

[0018] Description of the markings in the figure: 1. Main frame; 11. Rectangular opening; 2. Inner arc hanging point; 3. Outer arc hanging point; 4. Welding machine walking guide plate; 41. Support plate; 42. Arc-shaped rectangular plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0021] Please refer to the attached Figure 1 To Attachment Figure 3 The invention describes a main suspension point placing device for a suction anchor for submerged arc welding.

[0022] like Figure 1 As shown, the main suspension point placing device of the suction anchor for submerged arc welding in the present invention comprises a main frame 1 and inner arc suspension points 2, the inner arc suspension points 2 are fixedly arranged at both ends of the main frame 1, the inner arc suspension points 2 are connected to slings to set the main frame 1 on the tire rotating assembly, a rectangular opening 11 is opened on the main frame 1, a suction anchor circular arc plate is abutted at the rectangular opening 11, and the suction anchor circular arc plate is provided with a suction anchor main suspension point; the main frame 1 is provided with an inner arc suspension point 2 on one side thereof connected with a welding machine walking guide plate 4, a submerged arc welding machine is arranged on the welding machine walking guide plate 4, so as to weld the suction anchor main suspension point to the suction anchor circular arc plate; the main frame 1 is provided with an outer arc suspension point 3 on the side away from the inner arc suspension point 2, and the main frame 1 abutted on the tire rotating assembly is lifted by the outer arc suspension point 3.

[0023] The main frame 1 is in direct contact with the tire to realize the rotation on the tire assembly. The inner arc hanging point 2 can facilitate the crane to quickly lift the suction anchor arc plate abutting on the main frame 1 to the tire assembly through the crane, lift the suction anchor main hanging point to the suction anchor arc plate, and install the suction anchor main hanging point inside the suction anchor arc plate to realize the submerged arc welding after the suction anchor main hanging point and the suction anchor arc plate are assembled. The main frame 1 of the present application cooperates with the crane to realize the position fixation of the main frame after it rotates to a certain position. The welding machine walking guide plate 4 provides a welding path for the submerged arc welding machine and realizes the function of arc welding of the equipment in all positions.

[0024] Further, if Figure 1 and Figure 2 As shown, the main frame 1 is in an arc shape, and one side of the arc of the main frame 1 abuts against the tire rotating assembly so that the main frame 1 can rotate on the tire rotating assembly; a rectangular opening 11 is opened at the center of the main frame 1, and a suction anchor arc plate abuts on the rectangular opening 11; the inner arc hanging points 2 are respectively welded on both sides of the rectangular opening 11, and the two inner arc hanging points 2 are symmetrically arranged along the central axis of the main frame 1.

[0025] In this embodiment, preferably, the main frame 1 is an arc-shaped plate, and the protruding side of the main frame 1 abuts against the tire rotating assembly. The tire rotating assembly drives the main frame 1 to rotate so that the main hanging point of the suction anchor is aligned with the suction anchor arc plate for submerged arc welding.

[0026] Preferably, a rectangular opening 11 is provided at the center of the main frame 1, and a suction anchor arc plate is abutted at the rectangular opening 11. The size of the suction anchor arc plate is larger than the rectangular opening 11. An opening is provided on the suction anchor arc plate, and the main suspension point of the suction anchor is embedded in the opening. A D-shaped handle is provided on the main suspension point of the suction anchor; when the main suspension point of the suction anchor rotates with the main frame 1, the D-shaped handle does not contact the tire rotating assembly.

[0027] Two inner arc hanging points 2 are welded on the main frame 1, and the two inner arc hanging points 2 are respectively welded between the rectangular opening 11 and the side of the main frame 1, and the two inner arc hanging points 2 are symmetrical along the central axis of the main frame 1. When the main frame 1 is hoisted onto the tire rotating assembly, it is achieved by connecting the slings with the inner arc hanging points 2.

[0028] Further, if Figure 1 As shown, one end of the inner arc hanging point 2 welded to the main frame 1 is a first rectangular plate, and the end of the inner arc hanging point 2 away from the main frame 1 is a first rounded transition plate, and the first rounded transition plate is connected with a U-shaped clip; the main frame 1 is symmetrically welded with welding machine travel guide plates 4, and the two welding machine travel guide plates 4 are symmetrically arranged along the central axis of the main frame 1; the welding machine travel guide plate 4 includes a support plate 41 and an arc-shaped rectangular plate 42, and the support plate 41 is welded at intervals on the lower side of the arc-shaped rectangular plate 42, and the support plate 41 is welded to the main frame 1 on the side away from the arc-shaped rectangular plate 42, so that the submerged arc welding machine abuts against the arc-shaped rectangular plate 42.

[0029] In the present embodiment, preferably, one end of the inner arc hanging point 2 welded to the main frame 1 is a first rectangular plate, a first rounded transition plate is welded on the first rectangular plate of the inner arc hanging point 2, a U-shaped clip is connected to the first rounded transition plate, and the U-shaped clip is connected to the sling, and a 60mm diameter circular hole is opened in the middle of the first rounded transition plate; the inner arc hanging point 2 is fixed at a position 30-50mm from the plate edge in the inner length direction of the main frame 1.

[0030] The main frame 1 is provided with an inner arc hanging point 2, and a welding machine travel guide plate 4 is symmetrically welded on one side. The two welding machine travel guide plates 4 are symmetrically arranged along the central axis of the main frame 1. A submerged arc welding machine is abutted on the welding machine travel guide plate 4, thereby realizing welding between the suction anchor main hanging point and the suction anchor arc plate.

[0031] Preferably, the welding machine walking guide plate 4 is composed of a support plate 41 and an arc-shaped rectangular plate 42, and multiple support plates 41 are welded at intervals on the lower side of the arc-shaped rectangular plate 42. Multiple support plates 41 are welded on the main frame 1 away from the side of the arc-shaped rectangular plate 42, so that the submerged arc welding machine can stably abut against the arc-shaped rectangular plate 42 to perform submerged arc welding operations.

[0032] Further, if Figure 1 and Figure 3 As shown, a plurality of outer arc hanging points 3 are welded on the side of the main frame 1 away from the inner arc hanging point 2, and the plurality of outer arc hanging points 3 are respectively welded to the ends of the main frame 1; one end of the outer arc hanging point 3 welded to the main frame 1 is a second rectangular plate, and the end of the outer arc hanging point 3 away from the main frame 1 is a second rounded transition plate, and a U-shaped clip is connected to the second rounded transition plate; fixed hanging points are provided on both sides of the main frame 1, and the fixed hanging points are connected to the slings so that the main frame 1 can be stably placed after rotation.

[0033] In the present embodiment, preferably, a plurality of outer arc hanging points 3 are vertically welded on the side of the main frame 1 away from the inner arc hanging point 2, and the plurality of outer arc hanging points 3 are respectively welded to the ends of the main frame 1. After the suction anchor main hanging point and the suction anchor arc plate group are welded, they are connected with the sling through the outer arc hanging point to realize the separation of the main frame 1 from the tire rotating assembly.

[0034] Preferably, one end of the outer arc hanging point 3 welded to the main frame 1 is a second rectangular plate, and a second rounded transition plate is welded to the end of the outer arc hanging point 3 away from the main frame 1, and a U-shaped clip is connected to the second rounded transition plate. A 60mm diameter circular hole is opened in the middle of the second rounded transition plate, and the connection with the sling is achieved through the U-shaped clip; the outer arc hanging point 3 is 30-50mm away from the edge of the main frame.

[0035] Fixed hanging points are provided on both sides of the main frame 1. Preferably, when it is necessary to adjust the gap between the main hanging point of the suction anchor and the suction anchor arc plate for welding, the fixed hanging point is connected to the sling, and the sling pulls the main frame 1 to keep the adjusted main hanging point of the suction anchor and the suction anchor arc plate stationary, thereby realizing submerged arc welding.

[0036] The working steps of the main suspension point placement device of the suction anchor for submerged arc welding in this application are as follows: First, the main frame 1 is hoisted onto the tire rotating assembly by connecting the first rounded transition plate of the inner arc lifting point 2 through the lifting rope, and the suction anchor arc plate is hoisted and clamped on the rectangular opening 11 of the main frame 1; Then, the main lifting point of the suction anchor is lifted, the D-shaped handle passes through the opening of the suction anchor arc plate, the main lifting point of the suction anchor is embedded in the opening of the suction anchor arc plate, and the fixed lifting points on both sides of the main frame 1 are pulled to rotate the main frame 1; Finally, the submerged arc welding machine abutting against the welding machine walking guide plate 4 performs submerged arc welding on the assembled suction anchor main suspension points and the suction anchor arc plate.

[0037] The suction anchor main lifting point placement device based on submerged arc welding directly contacts the tire through the main frame 1 to realize rotation on the tire assembly. The inner arc lifting point 2 can facilitate the crane to quickly lift the suction anchor arc plate abutting on the main frame 1 to the tire assembly through the crane, lift the suction anchor main lifting point to the suction anchor arc plate, and install the suction anchor main lifting point inside the suction anchor arc plate to realize the submerged arc welding of the suction anchor main lifting point and the suction anchor arc plate. The main frame 1 of the present application cooperates with the crane to realize the position fixation of the main frame 1 after it is rotated to a certain position. The welding machine walking guide plate 4 provides a welding path for the submerged arc welding machine and realizes the function of arc welding of the equipment in all positions.

[0038] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A submerged arc welding suction anchor main suspension point placement device, characterized in that: It includes a main frame and an inner arc hanging point, the inner arc hanging point is fixedly arranged at both ends of the main frame, the inner arc hanging point is connected to the sling, so that the main frame is set on the tire rotating assembly, a rectangular opening is opened on the main frame, a suction anchor arc plate is abutted at the rectangular opening, and a suction anchor main hanging point is arranged on the suction anchor arc plate; the main frame is provided with an inner arc hanging point, one side of which is connected to a welding machine walking guide plate, and a submerged arc welding machine is arranged on the welding machine walking guide plate to weld the suction anchor main hanging point to the suction anchor arc plate; An outer arc hanging point is arranged on one side of the main frame away from the inner arc hanging point, and the main frame abutting on the tire rotating assembly is hung through the outer arc hanging point.

2. The main suspension point placing device for suction anchor of submerged arc welding according to claim 1 is characterized in that: The main frame is in an arc shape, and one side of the arc of the main frame abuts against the tire rotating assembly so that the main frame can rotate on the tire rotating assembly.

3. The main suspension point placing device for suction anchor of submerged arc welding according to claim 2 is characterized in that: A rectangular opening is provided at the center of the main frame, and a suction anchor arc plate is abutted on the rectangular opening.

4. The main suspension point placing device for suction anchor of submerged arc welding according to claim 1 is characterized in that: The inner arc hanging points are respectively welded on both sides of the rectangular opening, and the two inner arc hanging points are symmetrically arranged along the central axis of the main frame.

5. The main suspension point placing device for suction anchor of submerged arc welding according to claim 4 is characterized in that: One end where the inner arc hanging point is welded to the main frame is a first rectangular plate, and one end where the inner arc hanging point is away from the main frame is a first rounded transition plate, and a U-shaped clip is connected to the first rounded transition plate.

6. The main suspension point placing device for suction anchor of submerged arc welding according to claim 1 is characterized in that: 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.

7. The main suspension point placing device for suction anchors for submerged arc welding according to claim 6, characterized in that: The welding machine walking 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 support plate is welded on the main frame at a side away from the arc-shaped rectangular plate so that the submerged arc welding machine abuts against the arc-shaped rectangular plate.

8. The main suspension point placing device for suction anchor of submerged arc welding according to claim 1, characterized in that: A plurality of outer arc hanging points are welded on one side of the main frame away from the inner arc hanging point, and the plurality of outer arc hanging points are respectively welded to the ends of the main frame.

9. The main suspension point placing device for suction anchors for submerged arc welding according to claim 8, characterized in that: One end where the outer arc hanging point is welded to the main frame is a second rectangular plate, and one end where the outer arc hanging point is away from the main frame is a second rounded transition plate, and a U-shaped clip is connected to the second rounded transition plate.

10. The main suspension point placing device for suction anchors for submerged arc welding according to claim 8, characterized in that: Fixed hanging points are provided on both sides of the main frame, and the fixed hanging points are connected to the slings to ensure that the main frame can be placed stably after rotation.

Images