Movable heavy submerged-arc welding platform

Abstract

The utility model provides a movable heavy submerged-arc welding platform, which belongs to the field of welding equipment and comprises a main frame and a welding platform. The welding platform can ascend and descend in the main frame, is used for bearing an operator to move to the needed height and comprises a bottom frame and a welding window formed in the bottom frame. And the main frame is movably arranged and is used for bearing an operator to move to a to-be-welded position, so that the welding window corresponds to a to-be-welded spot. The operating platform has the advantages that the operating platform can be prevented from being repeatedly dismantled and built, the main frame is detachably arranged, the operating platform can be conveniently transported to an operating site, safety is guaranteed, meanwhile, the overall construction speed is increased, and the operating platform is suitable for welding of most pressure containers.

Description

Technical Field

[0001] The utility model belongs to the field of welding equipment, and particularly relates to a mobile heavy-duty submerged arc welding platform. Background Technique

[0002] For the welding of large pressure vessels, due to their large volume and high height, operators need to reach the welding points to be welded by relying on the height of the operating platform.

[0003] In the prior art, most of the operating platforms are directly built on site by producers to meet the construction requirements. However, this method has the following disadvantages:

[0004] 1. The construction period of the operating platform built on site is relatively long, about 2 - 3 days. The preparatory work in the early stage is much greater than the time required for actual welding, delaying the overall construction progress.

[0005] 2. The temporarily built operating platform is only applicable to the pressure vessels to be welded at that time and cannot be applied to other pressure vessels. Repeated dismantling and building waste working hours.

[0006] 3. Most producers use scaffolding to build the operating platform, which is prone to safety hazards. Content of the Utility Model

[0007] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a mobile heavy-duty submerged arc welding platform, which can avoid the repeated dismantling and building of the operating platform. The main frame is detachably arranged, which is convenient to transport it to the operation site. While ensuring safety, the overall construction speed is improved, and it is applicable to the welding of most pressure vessels.

[0008] To solve the above technical problems, the technical solution adopted by the utility model is: a mobile heavy-duty submerged arc welding platform, including a main frame and a welding platform;

[0009] The welding platform can be lifted and lowered within the main frame and is used to carry the operator to move to the required height. It includes a chassis and a welding window opened on the chassis.

[0010] The main frame is movably arranged and is used to carry the operator to move to the welding position to be welded, so that the welding window corresponds to the welding point to be welded.

[0011] Furthermore, the main frame includes side support frames and cross beams that are detachably connected. An A support component is inserted between the common vertical planes of the side support frames and the cross beams, and a B support component is arranged on the side support frames.

[0012] Furthermore, the A support component includes A engaging parts arranged on both sides of the lower end of the cross beam and B engaging parts arranged on the side ends of the side support frames. The two ends of the connecting beam are respectively inserted into the A engaging parts and the B engaging parts.

[0013] Further, the B support assembly includes a reinforcing rib connected between the inner upper wall and the side wall of the side support frame and a reinforcing beam connected between the two side walls.

[0014] Further, there are two sets of the B support assemblies arranged from top to bottom, and the reinforcing rib in the lower B support assembly is connected with the reinforcing beam of the upper B support assembly as a fulcrum.

[0015] Further, the welding platform includes a guardrail surrounding the bottom frame, and an access for the operator is provided on the guardrail.

[0016] Further, the bottom frame is composed of cross and longitudinal channel steels, and a bottom plate is laid on the channel steels.

[0017] Further, lifting lugs are arranged on both sides of the upper end of the side support frame, and the four corners of the welding platform are lifted by steel cables, and the steel cables are led out from adjacent lifting lugs.

[0018] Further, rollers are arranged on both sides of the lower end of the side support frame.

[0019] The advantages and positive effects of the present utility model are as follows:

[0020] 1. Due to the above technical solution, the welding platform is convenient to move through the movable setting of the main frame, and is not restricted by the position of the welding point to be welded on the pressure vessel. The welding platform can be lifted and lowered in the main frame by the hoisting of an external electric hoist, and is not restricted by the height of the welding point to be welded on the pressure vessel. Facing different pressure vessels, only the main frame needs to be moved and the height of the welding platform needs to be adjusted, without re-erecting.

[0021] 2. The setting of the A support assembly and the B support assembly can strengthen the overall strength of the main frame compared with the erection of a scaffold, and the setting of the guardrail around the welding platform can improve the overall safety in use.

[0022] 3. The detachable setting of the main frame through the cross beam and the side support frame is convenient for loading, unloading and transporting to the installation site, and is suitable for the production requirements of large-scale pressure vessels on site. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is a schematic diagram of the main frame of the present utility model;

[0025] Figure 3 is a schematic diagram of the side support frame of the present utility model;

[0026] Figure 4It is the top view of the welding platform of the utility model.

[0027] In the figure:

[0028] 1. Cross beam; 11. A engaging part;

[0029] 2. Side support frame; 21. Lifting lug; 22. B engaging part; 23. Roller; 24. Reinforcing rib; 25. Reinforcing beam;

[0030] 3. Connecting beam; 4. Connecting piece;

[0031] 5. Underframe; 51. Welding window; 6. Guardrail; 61. Entrance and exit. Specific implementation manner

[0032] The following further describes the utility model in conjunction with the embodiments and the drawings.

[0033] As Figures 1 to 4 shown, this embodiment provides a mobile heavy-duty submerged arc welding platform, including a main frame and a welding platform;

[0034] The welding platform can be lifted and lowered within the main frame, and is used to carry the operator to move to the required height, including an underframe 5 and a welding window 51 opened on the underframe 5;

[0035] The main frame is movably arranged and is used to carry the operator to move to the position to be welded of the pressure vessel, so that the welding window 51 corresponds to the point to be welded, and the operator can weld the point to be welded of the pressure vessel through the welding window 51.

[0036] The main frame includes two groups of relatively arranged side support frames 2. The side support frames 2 are in a "door" shape. The two groups of side support frames 2 are detachably connected by a cross beam 1. Specifically, there are two cross beams 1, which are respectively on both sides of the opposite ends of the two side support frames 2. Connecting pieces 4 are arranged at the connection ends of the cross beam 1 and the side support frames 2. The two connecting pieces 4 can be fixed by bolts, and the connecting pieces 4 can be flanges.

[0037] To strengthen the strength of the main frame, an A support assembly is inserted between the common vertical planes of the side support frames 2 and the cross beam 1, and a B support assembly is arranged on the side support frames 2;

[0038] The A support assembly includes a connecting beam 3, A engaging parts 11 arranged on both sides of the lower end of the cross beam 1, and B engaging parts 22 arranged on the side ends of the side support frames 2. The A engaging parts 11 and the B engaging parts 22 make the connecting beam 3 inclined. The two ends of the connecting beam 3 are respectively inserted into the grooves of the A engaging parts 11 and the grooves of the B engaging parts 22.

[0039] There are two sets of B support components arranged from top to bottom within the side support frame 2. The upper B support component includes an inclined reinforcing rib 24 connected between the inner upper wall and the side wall of the side support frame 2, and a reinforcing beam 25 connected between the two side walls. The reinforcing rib in the lower B support component is connected with the reinforcing rib of the upper B support component as a fulcrum, that is, it is connected between the lower end of the upper reinforcing rib and the side wall of the side support arm 2.

[0040] To facilitate the movement of the main frame, rollers 23 are provided at the lower ends on both sides of the side support frame 2.

[0041] The welding platform includes a guardrail 6 surrounding the bottom frame 5. An access opening 61 for the operator to enter is provided on the guardrail 6. The access opening 61 can be a single opening or an openable guardrail door.

[0042] The bottom frame 5 is composed of criss-crossed channel steels, and a bottom plate is laid on the channel steels. A patterned bottom plate can be used to increase the friction between the operator's soles and the bottom plate.

[0043] The welding platform is lifted by steel cables. Specifically, the steel cables are arranged at the four corners of the welding platform. Lifting lugs 21 are provided on both sides of the upper end of the side support frame 2. The steel cables are led out from adjacent lifting lugs 21, and the steel cables are hoisted by an external electric hoist.

[0044] The working process of this embodiment:

[0045] Push the main frame to the required position so that the pressure vessel to be welded is located between the two side support frames 2 of the main frame. By hoisting the steel cables with an external electric hoist, adjust the position of the welding platform so that the welding window 51 corresponds to the welding point to be welded on the pressure vessel.

[0046] The operator walks to the welding platform through a separately provided external staircase, enters through the access opening 61 of the welding platform, and welds the welding point to be welded through the welding window 51.

[0047] The above has described one or more embodiments of the present invention in detail, but the described content is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A mobile heavy-duty submerged arc welding platform, characterized in that: It includes a main frame and a welding platform; The welding platform can be lifted within the main frame and is used to carry the operator to the required height. It includes a chassis (5) and a welding window (51) opened on the chassis (5); The main frame is movably arranged and is used to carry the operator to the welding position to make the welding window (51) correspond to the welding point to be welded.

2. The mobile heavy-duty submerged arc welding platform according to claim 1, wherein: The main frame includes a side support frame (2) and a cross beam (1) that are detachably connected. An A support component is inserted between the common vertical planes of the side support frame (2) and the cross beam (1), and a B support component is arranged on the side support frame (2).

3. The mobile heavy-duty submerged arc welding platform according to claim 2, characterized in that: The A support component includes A engaging parts (11) arranged on both sides of the lower end of the cross beam (1) and B engaging parts (22) arranged on the side ends of the side support frame (2). Both ends of the connecting beam (3) are respectively inserted into the A engaging parts (11) and the B engaging parts (22).

4. A mobile heavy-duty submerged arc welding platform according to claim 2, characterized in that: The B support component includes a reinforcing rib (24) connected between the inner upper wall and the side wall of the side support frame (2) and a reinforcing beam (25) connected between the two side walls.

5. The mobile heavy-duty submerged arc welding platform according to claim 4, wherein: There are two groups of the B support components arranged from top to bottom, and the reinforcing rib in the lower B support component is connected with the reinforcing beam of the upper B support component as a fulcrum.

6. The mobile heavy-duty submerged arc welding platform according to claim 1, wherein: The welding platform includes a guardrail (6) surrounding the chassis (5), and an entrance (61) for the operator to enter is provided on the guardrail (6).

7. A mobile heavy-duty submerged arc welding platform according to claim 1, characterized in that: The chassis (5) is composed of crosswise and longitudinally crisscrossed channel steels, and a bottom plate is laid on the channel steels.

8. A mobile heavy-duty submerged arc welding platform according to claim 2, characterized in that: Lifting lugs (21) are arranged on both sides of the upper end of the side support frame (2). The four corners of the welding platform are lifted by steel cables, and the steel cables are led out from adjacent lifting lugs (21).

9. A mobile heavy-duty submerged arc welding platform according to claim 2, characterized in that: Rollers (23) are arranged on both sides of the lower end of the side support frame (2).

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