Movable platform for butt welding of vertical cylinders of steel coal buckets

Abstract

The utility model discloses a moving platform for butt welding of vertical cylinders of a steel coal bucket. The moving platform comprises a platform vertical frame, a platform top frame and a platform bottom frame, the platform vertical frame comprises a door-shaped vertical frame body and a vertical frame reinforcing cross beam, frame body vertical rods are arranged below the vertical frame body in parallel, vertical frame telescopic joints are connected between the vertical frame body and the two frame body vertical rods respectively, and walking idler wheels are arranged on the platform top frame, the vertical frame body and the two frame body vertical rods respectively. During use, the whole platform is hung on a vertical cylinder located at the top end, a welding worker conducts butt welding between the vertical cylinder at the top end and a vertical cylinder on the lower portion of the vertical cylinder in the platform underframe, operation is safe and reliable, the platform can move along the vertical cylinders through the arrangement of the walking rollers, adaptive adjustment is conducted according to the welding operation position, and welding efficiency is improved. Compared with a traditional scaffold erecting platform, the cost is greatly reduced, the effective utilization rate of the platform is improved, the platform is easy to transfer and high in using speed, and the construction efficiency of butt welding can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary tools for the construction of steel coal hoppers, in particular to a moving platform for butt welding of vertical cylinders of steel coal hoppers. Background Art

[0002] During the construction of power projects, the coal hoppers in the coal bunker are selected into two types: circular steel coal hoppers and square steel coal hoppers, among which circular steel coal hoppers are the most commonly used. The diameters and heights of the vertical cylinders forming the circular steel coal hoppers are relatively large. First, multiple steel plates need to be welded into vertical cylinder segments in sections, and then the vertical cylinder segments are sequentially butt-jointed and welded. When butt-welding the vertical cylinder segments, a platform needs to be used.

[0003] The currently used welding operation platforms are mainly constructed by fastener-type floor scaffolds or combined scaffolds. These platforms generally have the following disadvantages: ① Based on the outer shape structure of the circular steel coal hopper, the fastener-type floor scaffolds need to be erected in a circular shape. The erection process is complex, with low efficiency, large workload, and high cost. ② The combined scaffolds are not flexible in movement and have low usage efficiency. ③ The components of both platforms are turnover materials, but their turnover is poor. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a moving platform for butt welding of vertical cylinders of steel coal hoppers with relatively low manufacturing cost, safe in use, adjustable in position according to the operation points, and greatly improved in usage efficiency or turnover.

[0005] To solve the above technical problem, the technical solution of the utility model is: a moving platform for butt welding of vertical cylinders of steel coal hoppers, used for welding the vertical cylinders of a combined circular steel coal hopper, including a platform vertical frame. The top end of the platform vertical frame is fixedly connected with a platform top frame, and the bottom end of the platform vertical frame is fixedly connected with a platform bottom frame. The platform top frame and the platform bottom frame are located on both sides of the platform vertical frame. The platform vertical frame includes a portal-shaped vertical frame body, at least one vertical frame strengthening cross beam is welded on the vertical frame body, two cooperating frame body vertical rods are arranged in parallel below the vertical frame body, and vertical frame expansion joints are respectively connected between the vertical frame body and the two frame body vertical rods. The platform top frame is arranged at the top end of the vertical frame body, the platform bottom frame is arranged between the two frame body vertical rods, and walking rollers are respectively arranged and installed on the platform top frame, the vertical frame body, and the two frame body vertical rods, and the rolling surfaces of the walking rollers are all abutted against the surface of the vertical cylinder.

[0006] As a preferred technical solution, the top frame of the platform includes two parallel top frame support arms that straddle the top ends of the vertical cylinders. The two top frame support arms are respectively vertically connected to the vertical frame body. A support arm strengthening cross beam is connected between the two top frame support arms. At least two of the traveling rollers are respectively installed on each of the top frame support arms. One of the traveling rollers abuts against the inner wall of the vertical cylinder, and the other traveling roller abuts against the top wall of the vertical cylinder.

[0007] As a preferred technical solution, limit vertical arms extending downward are respectively fixedly installed at the bottom ends of the top frame support arms. The traveling roller that abuts against the inner wall of the vertical cylinder is installed on the corresponding limit vertical arm.

[0008] As a preferred technical solution, the traveling roller that abuts against the inner wall of the vertical cylinder, the traveling roller on the vertical frame body, and the traveling rollers on the two frame body vertical rods are respectively installed through elastic pressing frames.

[0009] As a preferred technical solution, the elastic pressing frame includes a roller shaft for rotatably installing the traveling roller. A limit insertion rod is movably installed through the roller shaft, and a pressing spring is sleeved on the limit insertion rod.

[0010] As a preferred technical solution, the vertical frame expansion joint includes fixed inner rods installed at the ends of the frame body vertical rods. Fixed sleeves are provided at the bottom end of the vertical frame body corresponding to the fixed inner rods. The fixed sleeves are sleeved outside the corresponding fixed inner rods. Expansion adjustment holes are arranged through the fixed sleeves and the fixed inner rods. An adjustment pin shaft is detachably inserted into one of the expansion adjustment holes.

[0011] As an improvement to the above technical solution, the bottom frame of the platform includes a frame-shaped bottom frame body, and a load-bearing bottom plate is fixedly installed at the bottom end of the bottom frame body.

[0012] Due to the adoption of the above technical solution, the vertical cylinder butt welding mobile platform for steel coal hoppers is used for welding the vertical cylinders of a combined circular steel coal hopper. It includes a platform vertical frame, at the top of which there is a fixedly connected platform top frame, and at the bottom of which there is a fixedly connected platform bottom frame. The platform top frame and the platform bottom frame are located on both sides of the platform vertical frame. The platform vertical frame includes a portal-shaped vertical frame body, on which at least one vertical frame strengthening cross beam is welded. Below the vertical frame body, there are two cooperating frame body vertical rods arranged in parallel. Between the vertical frame body and the two frame body vertical rods, there are respectively connected vertical frame expansion joints. The platform top frame is arranged at the top of the vertical frame body, and the platform bottom frame is arranged between the two frame body vertical rods. Walking rollers are respectively arranged on the platform top frame, the vertical frame body and the two frame body vertical rods, and the rolling surfaces of each walking roller are all abutted against the surface of the vertical cylinder. The utility model has the following beneficial effects: Through the cooperation of the platform vertical frame and the platform top frame, the whole platform can be suspended on the vertical cylinder at the top. Welding operators can perform butt welding between the top vertical cylinder and its lower vertical cylinder inside the platform bottom frame. The operation is safe and reliable. And through the arrangement of each walking roller, the platform can move along the vertical cylinder to make adaptive adjustments according to the welding operation position. Compared with the traditional scaffolding platform, the cost is greatly reduced, the effective utilization rate of the platform is improved, it is easy to transfer, and the commissioning speed is fast, which helps to improve the construction efficiency of butt welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following drawings are only intended to illustrate and explain the present utility model schematically and do not limit the scope of the present utility model. Among them:

[0014] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0015] Figure 2 is another schematic structural diagram of an embodiment of the present utility model;

[0016] Figure 3 is Figure 2 an enlarged structural diagram of part A in

[0017] In the figure: 1 - vertical cylinder; 2 - vertical frame body; 3 - vertical frame strengthening cross beam; 4 - frame body vertical rod; 5 - fixed sleeve; 6 - expansion adjustment hole; 7 - adjustment pin shaft; 8 - bottom frame body; 9 - load-bearing bottom plate; 10 - walking roller; 11 - top frame support arm; 12 - support arm strengthening cross beam; 13 - limit vertical arm; 14 - roller shaft; 15 - limit insertion rod; 16 - compression spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. In the following detailed description, only some exemplary embodiments of the present utility model are described by way of illustration. Undoubtedly, those of ordinary skill in the art can recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the drawings and description are illustrative in nature and are not used to limit the protection scope of the claims.

[0019] As Figure 1 shown, the vertical cylinder butt welding mobile platform for steel coal hoppers is used for welding the vertical cylinder 1 of the combined circular steel coal hopper. When in use, it is suspended on the top vertical cylinder 1 to perform butt welding between it and the adjacent lower vertical cylinder 1. It specifically includes a platform vertical frame, the top of the platform vertical frame is fixedly connected with a platform top frame, the bottom of the platform vertical frame is fixedly connected with a platform bottom frame, and the platform top frame and the platform bottom frame are located on both sides of the platform vertical frame. When in use, the entire platform is suspended on the top vertical cylinder 1 by means of the platform vertical frame and the platform top frame, and the welding operators perform butt welding operations inside the platform bottom frame.

[0020] Among them, the platform vertical frame includes a portal-shaped vertical frame body 2, and at least one vertical frame strengthening cross beam 3 is welded on the vertical frame body 2. Through the vertical frame strengthening cross beam 3, the strength of the entire platform can be improved to ensure the firmness of the platform construction. Two cooperating frame body vertical rods 4 are arranged in parallel below the vertical frame body 2. Vertical frame expansion joints are respectively connected between the vertical frame body 2 and the two frame body vertical rods 4. The platform top frame is arranged at the top of the vertical frame body 2, and the platform bottom frame is arranged between the two frame body vertical rods 4. Through the vertical frame expansion joints, the overall height of the platform can be adjusted. On the one hand, it can meet the docking use of vertical cylinders 1 at different heights to a certain extent; on the other hand, the height of the platform can be adjusted according to the height of the welding personnel to make the working state of the welding personnel as appropriate as possible, which helps to reduce their fatigue degree.

[0021] Specifically, the vertical frame expansion joint includes fixed inner rods installed at the ends of the respective frame body vertical rods 4. Fixed sleeves 5 are provided at the bottom end of the vertical frame body 2 corresponding to the respective fixed inner rods. The fixed sleeves 5 are sleeved outside the corresponding fixed inner rods. Telescopic adjustment holes 6 are arranged through the respective fixed sleeves 5 and the fixed inner rods. The adjacent telescopic adjustment holes 6 can be set to 10 cm, and an adjustment pin shaft 7 is detachably inserted into one of the telescopic adjustment holes 6. By adjusting the insertion length of the fixed inner rod and the fixed sleeve 5, the overall height of this embodiment is adjusted. Due to their insertion state, in Figure 1 and Figure 2 the fixed inner rods are not shown, and the installation positions of the fixed inner rods and the corresponding fixed sleeves 5 can be interchanged.

[0022] The platform chassis includes a frame-shaped chassis body 8. A load-bearing bottom plate 9 is fixedly installed at the bottom end of the chassis body 8. The chassis body 8 can be formed by welding angle steel of 50×5. The load-bearing bottom plate 9 can be made of patterned steel plate with a thickness of 4 mm, which has a certain anti-slip effect and is safer to use.

[0023] Traveling rollers 10 are respectively arranged and installed on the platform top frame, the vertical frame body 2, and the two frame body vertical rods 4. And the rolling wheel surfaces of the traveling rollers 10 are all abutted against the surface of the vertical cylinder 1. Through the rolling cooperation between the traveling rollers 10 and the vertical cylinder 1, the movement of the platform on the vertical cylinder 1 can be realized labor-savingly, and it is more convenient to use.

[0024] The platform top frame of this embodiment includes two parallel top frame support arms 11 that straddle the top end of the vertical cylinder 1. The two top frame support arms 11 are respectively vertically connected to the vertical frame body 2. A support arm strengthening cross beam 12 is connected between the two top frame support arms 11. Through the support arm strengthening cross beam 12, the support strength during suspension can be improved to enhance the safety of use. At least two of the traveling rollers 10 are respectively installed on each of the top frame support arms 11. One of the traveling rollers 10 abuts against the inner wall of the vertical cylinder 1, and the other traveling roller 10 abuts against the top wall of the vertical cylinder 1. With the cooperation of the traveling rollers 10, the friction between the platform and the vertical cylinder 1 is minimized to prevent scratching the surface of the vertical cylinder 1, which helps to protect the vertical cylinder 1. The traveling roller 10 in contact with the inner wall of the vertical cylinder 1 also forms a limit to the platform in the suspended state to prevent it from falling.

[0025] Such as Figure 2 and Figure 3 As shown, limit vertical arms 13 extending downward are respectively fixedly installed at the bottom ends of the top frame support arms 11. The traveling rollers 10 abutted against the inner wall of the vertical cylinder 1 are installed on the corresponding limit vertical arms 13. The limit vertical arms 13 can form a limit to the whole platform during suspension to improve the safety of its suspended state. A cross beam can also be connected between the two limit vertical arms 13 to improve the limit strength.

[0026] The traveling rollers 10 abutted against the inner wall of the vertical cylinder 1, the traveling rollers 10 on the vertical frame body 2, and the traveling rollers 10 on the two frame body vertical rods 4 are respectively installed through elastic pressing frames. Since the inner and outer walls of the vertical cylinder 1 are both arc-shaped walls, by setting the elastic pressing frames, the corresponding traveling rollers 10 can be pressed against the surface of the vertical cylinder 1, enabling the traveling rollers 10 to adapt to its surface curvature. At the same time, this embodiment can also be used for butt welding of vertical cylinders with different thicknesses.

[0027] The elastic pressing frame includes a roller shaft 14 for rotatably mounting the traveling roller 10. A limiting insertion rod 15 is movably installed through the roller shaft 14, and a pressing spring 16 is sleeved on the limiting insertion rod 15. The pressing spring 16 inside the vertical cylinder 1 is limited between the corresponding roller shaft 14 and the limiting vertical arm 13, and the pressing spring 16 outside the vertical cylinder 1 is limited between the roller shaft 14 and the corresponding frame body 2 or the frame body vertical rod 4, so that the pressing spring 16 obtains elastic force to realize the pressing of the traveling roller 10.

[0028] During use, the entire platform is suspended on the vertical cylinder 1 at the top. The welder stands on the load-bearing bottom plate 9 to perform welding operations. After a section of weld is completed, the welder can push the vertical cylinder 1 to move the platform left or right. Of course, for the sake of saving effort, it can also be moved by pulling with external force. This platform has been successfully applied in the Baiyinhua pithead power plant project undertaken by PowerChina Nuclear Power Engineering Co., Ltd. It is convenient to operate, safe and reliable, and has strong turnover. It saves the manpower, material resources and time for erecting scaffolding, greatly reduces the construction difficulty, speeds up the construction progress, thus shortening the construction period and improving the construction efficiency. The promotion and application prospect is broad.

[0029] The description of the present invention has been given for purposes of illustration and description, and is not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments were chosen and described in order to better explain the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention so as to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A mobile platform for welding the steel coal hopper vertical tube, which is used for welding the vertical tube of a combined circular steel coal hopper, comprises a platform frame, the top of which is fixedly connected to a platform top frame, and the bottom of which is fixedly connected to a platform bottom frame, and is characterized in that: The platform top frame and the platform bottom frame are located on both sides of the platform frame; the platform frame includes a door-shaped frame body, at least one frame reinforcing beam is welded on the frame body, two frame uprights for matching use are arranged in parallel below the frame body, frame telescopic joints are respectively connected between the frame body and the two frame uprights, the platform top frame is arranged at the top of the frame body, and the platform bottom frame is arranged between the two frame uprights, walking rollers are respectively arranged and installed on the platform top frame, the frame body and the two frame uprights, and the rolling wheel surface of each walking roller abuts against the surface of the vertical cylinder.

2. The steel coal bucket vertical tube butt welding mobile platform as claimed in claim 1, characterized in that: The platform top frame includes two parallel top frame support arms arranged across the top of the vertical tube, the two top frame support arms are respectively vertically connected to the vertical frame body, a support arm reinforcement beam is connected between the two top frame support arms, and at least two walking rollers are respectively installed on each of the top frame support arms, one of the walking rollers rests on the inner wall of the vertical tube, and the other walking roller rests on the top wall of the vertical tube.

3. The steel coal bucket vertical tube butt welding mobile platform as claimed in claim 2, characterized in that: The bottom end of each of the top frame support arms is respectively fixedly mounted with a downwardly extending limit vertical arm, and the walking rollers abutting against the inner wall of the vertical tube are mounted on the corresponding limit vertical arms.

4. The steel coal bucket vertical tube butt welding mobile platform as claimed in claim 3, characterized in that: The travel rollers abutting against the inner wall of the vertical tube, the travel rollers on the vertical frame body, and the travel rollers on the two frame body uprights are respectively installed through elastic clamping frames.

5. The steel coal bucket vertical tube butt welding mobile platform as claimed in claim 4, characterized in that: The elastic pressing frame comprises a roller shaft for rotatably installing the travel roller, a limit plug-in rod is movably installed through the roller shaft, and a pressing spring is sleeved on the limit plug-in rod.

6. The steel coal bucket vertical tube butt welding mobile platform as claimed in claim 1, characterized in that: The telescopic joint of the frame includes a fixed inner rod installed at the end of each frame body upright rod, and a fixed sleeve is provided at the bottom end of the frame body corresponding to each fixed inner rod. The fixed sleeve is sleeved on the outside of the corresponding fixed inner rod, and telescopic adjustment holes are arranged through each fixed sleeve and the fixed inner rod, and an adjustment pin is detachably inserted in one of the telescopic adjustment holes.

7. The steel coal bucket vertical tube butt welding mobile platform as claimed in claim 1, characterized in that: The platform chassis comprises a frame-shaped chassis body, and a load-bearing base plate is fixedly mounted on the bottom end of the chassis body.

Images