Movable operation frame for welding cantilever arm of steel box girder

Abstract

The utility model discloses a movable operating frame for welding a cantilever of a steel box girder, which comprises a mounting bottom plate fixed on the side wall of the steel box girder through bolts, a sliding component, a rolling component and a construction frame body, the sliding component, the rolling component and the construction frame body are arranged on the mounting bottom plate along the length direction of the mounting bottom plate, the construction frame body is in a U shape, and a construction platform is arranged at the bottom of the construction frame body. And the construction platform is located below the mounting bottom plate, the rolling assembly is carried on a moving platform at the top of the construction frame body, the rolling assembly is arranged in the sliding assembly in a rolling mode, and a driving assembly for driving the rolling assembly to move is arranged on the construction platform. The effects that the safety of welding construction of the cantilever arm of the steel box girder is guaranteed, and meanwhile the construction efficiency is improved are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway overpass construction, in particular to an operating frame for welding the cantilever of a movable steel box girder. Background Technique

[0002] Steel box girders are widely used in the construction of highway overbridges. The cantilever of the steel box girder can be spliced to improve the construction efficiency of highway overpass construction. The construction of bridges using steel box girder structures mainly involves welding work, and an operating frame construction device is required for the welding of the wing plates of the steel box girder.

[0003] After the traditional steel box girder welding construction platform is positioned, it cannot move horizontally along the wing plate and cannot continuously weld the wing plate. It is necessary to move the platform as a whole again and re-construct after fixing, resulting in low construction efficiency. Therefore, we propose an operating frame for welding the cantilever of a movable steel box girder to solve this problem. Summary of the Invention

[0004] The technical problem to be solved by the utility model is that the existing operating frame is inconvenient to move.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: an operating frame for welding the cantilever of a movable steel box girder, which includes a mounting base plate fixed to the side wall of the steel box girder by bolts, a sliding component, a rolling component and a construction frame body arranged on the mounting base plate along the length direction of the mounting base plate. The construction frame body is in a U shape, a construction platform is arranged at the bottom of the construction frame body, the construction platform is located below the mounting base plate, the rolling component is carried on a moving platform at the top of the construction frame body, the rolling component is arranged to roll in the sliding component, and a driving component for driving the rolling component to move is arranged on the construction platform.

[0006] Preferably, the sliding component includes paired sliding bin bodies fixed on the mounting base plate. The side wall of the sliding bin body is penetrated and provided with a mounting groove body. The inner top and bottom of the mounting groove body are both arranged with guiding sheet metals adapted to the rolling wheels in the rolling component along the length direction of the sliding bin body.

[0007] Preferably, the cross section of the guiding sheet metal is in a V shape, and a V-shaped groove body is arranged on the outer peripheral surface of the rolling wheel.

[0008] Preferably, both the moving platform and the construction platform are moving frame bodies with a rectangular frame structure. A stepping pedal body is arranged in the construction platform. The moving platform penetrates through the two sliding bin bodies. The rolling component includes rotating shafts arranged on both sides of the moving platform, and rolling wheels are connected to both ends of the rotating shafts.

[0009] Preferably, the driving assembly includes a driven sprocket fixed at the end of the rotating shaft, a driving sprocket rotatably installed on one side of the construction platform, and a shaking handle, the shaking handle is connected to the mounting shaft of the driving sprocket, and the driving sprocket and the driven sprocket are connected by a chain transmission.

[0010] Preferably, the top edge of the mobile platform is provided with a fence board 1, the top edge of the construction platform is provided with a fence board 2, and a ladder is provided between the mobile platform and the construction platform, and the ladder is arranged on the inner side of the fence board 1 and the fence board 2.

[0011] Preferably, the mobile platform and the construction platform are connected by an X-shaped connecting frame, which is located on both sides of the mobile platform and the construction platform, and the bottom end of the mobile frame is connected to the two ends of the construction platform, and the top end of the mobile frame is respectively connected to the middle and one end of the mobile platform.

[0012] The utility model provides a movable operating frame for welding the cantilever arm of a steel box girder. The driving sprocket can be driven to rotate by turning the shaking handle, and the driving sprocket can drive the driven sprocket to rotate through the chain transmission. Furthermore, the rolling wheel can be driven to rotate during the rotation of the rotating shaft. The provided guide sheet metal can be embedded in the interior of the V-shaped groove body to guide the rolling wheel. The rolling wheel rolls under the guidance of the guide sheet metal, and thus the lateral movement of the entire operating frame can be realized, which is convenient for construction and greatly improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 It is a top view schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a top view of the rolling assembly of the present invention.

[0016] Figure 3 It is a cross-sectional schematic diagram of the present utility model.

[0017] Figure 4 This is a top view of the sliding assembly of the present invention.

[0018] In the figure: 1. Moving frame; 2. Fence plate 1; 3. Ladder; 4. Connecting frame; 5. Fence plate 2; 6. Installing base plate; 7. Pedal body; 8. Rotating shaft; 9. Rolling wheel; 10. V-shaped trough body; 11. Sliding bin body; 12. Guide sheet metal; 13. Driven sprocket; 14. Driving sprocket; 15. Crank handle; 16. Installing trough body. DETAILED DESCRIPTION

[0019] See also Figure 1-4The utility model provides a movable steel box girder cantilever welding operation frame, including a mounting base 6, and further comprising:

[0020] The mounting base plate 6 can be fixed to the upper end surface of the steel box girder by bolts to support and install subsequent components. The mobile frame 1 is provided with two groups, which are respectively arranged on the upper and lower sides of the steel box girder. The interior of the mobile frame 1 is provided with a transverse connecting arm and an X-shaped reinforcement arm to enhance the stability of the overall structure of the mobile frame 1.

[0021] The sliding assembly is symmetrically distributed and fixed on the upper end surface of the mounting base 6, and the upper movable frame 1 passes through the interior of the sliding assembly. The sliding assembly is used to enable the movable frame 1 to be adjusted forward and backward. The sliding assembly includes a sliding bin body 11, a guide sheet metal 12, and a mounting groove body 16. The sliding bin body 11 is symmetrically distributed and fixed on the upper end surface of the mounting base 6. The guide sheet metal 12 is symmetrically fixed on the upper and lower sides of the inner wall of the sliding bin body 11, and the cross-section of the guide sheet metal 12 is a "V"-shaped structure. The mounting groove body 16 is opened through the side of the sliding bin body 11, and the movable frame 1 is penetrated into the interior of the mounting groove body 16. The sliding bin body 11 is used to install the guide sheet metal 12, and the guide sheet metal 12 is used to guide the subsequent rolling assembly. The mounting groove body 16 can enable the upper movable frame 1 to pass through the interior of the sliding bin body 11, so that the rolling assembly can work more smoothly.

[0022] The rolling assembly is symmetrically distributed on the front and rear sides of the upper mobile frame 1 and is used to cooperate with the sliding assembly to adjust the position of the mobile frame 1. The rolling assembly includes a rotating shaft 8, a rolling wheel 9, and a V-shaped groove 10. The rotating shaft 8 is symmetrically distributed and rotatably connected to the front and rear sides of the upper mobile frame 1. The rolling wheels 9 are symmetrically distributed and fixed to the outside of the rotating shaft 8. The V-shaped groove 10 is opened on the outer wall of the rolling wheel 9, and the upper and lower guide sheet metals 12 are located inside the V-shaped groove 10. During the rotation of the rotating shaft 8, the rolling wheel 9 can be driven to rotate. The rolling wheel 9 can contact the lower guide sheet metal 12. The guide sheet metal 12 can be embedded in the V-shaped groove 10 to guide the rolling wheel 9.

[0023] The driving assembly is arranged at one end of the rolling assembly and is used to drive the rolling assembly to work. The driving assembly includes a driven sprocket 13, a driving sprocket 14, and a shaking handle 15. The driven sprocket 13 is fixedly connected to one end of the front rotating shaft 8. The driving sprocket 14 is rotatably connected to the front side of the front connecting frame 4 through a mounting plate, and the driving sprocket 14 and the driven sprocket 13 are transmitted by a chain. The shaking handle 15 is fixed to the left side of the driving sprocket 14. By rotating the shaking handle 15, the driving sprocket 14 can be driven to rotate, and then the driving sprocket 14 can drive the driven sprocket 13 to rotate through the chain transmission, and then the driven sprocket 13 can drive the rolling wheel 9 to roll under the guiding action of the guide sheet metal 12, and then, the movement of the overall operating frame can be realized, which facilitates construction and improves construction efficiency.

[0024] The lower end surface of the upper mobile frame 1 is symmetrically fixed with a connecting frame 4, and the other end of the connecting frame 4 is fixedly connected to the lower mobile frame 1. The cross section of the connecting frame 4 is an "X"-shaped structure. The connecting frame 4 is used to connect the upper and lower mobile frames 1, and the X-shaped structure can make the connection between the upper and lower mobile frames 1 more secure. The upper end surface of the lower mobile frame 1 is embedded with a pedal body 7. The pedal body 7 can facilitate workers to support the manual work when welding on the lower layer. A fence plate 2 is fixed to the right side of the upper end face of the upper mobile frame 1, and a fence plate 2 5 is fixed to the upper end face of the lower mobile frame 1, and both fence plate 1 2 and fence plate 2 5 are built with profiles, and a ladder 3 is fixed to the inner side of fence plate 1 2, and the other end of the ladder 3 is fixedly connected to the inner wall of fence plate 2 5. The fence plates 1 2 and fence plates 2 5 are built with profiles, which are light and strong and play a protective role. The ladder 3 can facilitate construction workers to climb from the upper mobile frame 1 to the lower mobile frame 1.

[0025] The top end of the mobile frame 4 is respectively connected to the middle part and one end of the mobile platform, which can provide sufficient side space for workers to perform welding construction on the construction frame.

[0026] Working principle: First, the mounting base plate 6 can be fixed to the upper end surface of the steel box girder by bolts to support and install subsequent components. The mobile frame 1 is provided with two groups, one on the upper and lower sides of the steel box girder, and the interior of the mobile frame 1 is provided with a transverse connecting arm and an X-shaped reinforcement arm to enhance the stability of the overall structure of the mobile frame 1;

[0027] When in use, the driving sprocket 14 can be driven to rotate by turning the shaking handle 15, and then the driving sprocket 14 can drive the driven sprocket 13 to rotate through the chain transmission, so that the rotating shaft 8 rotates. During the rotation of the rotating shaft 8, the rolling wheel 9 can be driven to rotate. The set guide sheet metal 12 can be embedded in the interior of the V-shaped groove body 10 to guide the rolling wheel 9. The rolling wheel 9 rolls under the guidance of the guide sheet metal 12, thereby realizing the lateral movement of the entire operating frame, facilitating construction, and greatly improving construction efficiency.

Claims

1. A movable steel box girder cantilever welding operating frame, characterized by: It includes a mounting base plate (6) fixed to the side wall of the steel box girder by bolts, a sliding assembly, a rolling assembly and a construction framework arranged on the mounting base plate (6) along the length direction of the mounting base plate (6). The construction framework is in a U shape, and a construction platform is provided at the bottom of the construction framework. The construction platform is located below the mounting base plate (6). The rolling assembly is carried on a moving platform at the top of the construction framework, and the rolling assembly is arranged to roll within the sliding assembly. A driving assembly for driving the rolling assembly to move is arranged on the construction platform.

2. A movable steel box girder cantilever welding operating frame as claimed in claim 1, characterized in that: The sliding assembly includes sliding bins (11) fixed in pairs on the mounting base plate (6). Installation grooves (16) are formed through the side walls of the sliding bins (11). Guide sheet metals (12) adapted to the rolling wheels (9) within the rolling assembly are arranged along the length direction of the sliding bins (11) at the inner top and bottom of the installation grooves (16).

3. A movable steel box girder cantilever welding operating frame as claimed in claim 2, characterized in that: The cross section of the guide sheet metal (12) is V-shaped, and a V-shaped groove body (10) is formed on the outer peripheral surface of the rolling wheel (9).

4. A movable steel box girder cantilever welding operating frame as claimed in claim 3, characterized in that: Both the moving platform and the construction platform are moving frames (1) with a rectangular frame structure. A stepping pedal body (7) is arranged within the construction platform. The moving platform penetrates through the two sliding bins (11). The rolling assembly includes rotating shafts (8) arranged on both sides of the moving platform, and the rolling wheels (9) are connected to both ends of the rotating shafts (8).

5. A movable steel box girder cantilever welding operating frame as claimed in claim 4, characterized in that: The driving assembly includes a driven sprocket (13) fixed to the end of the rotating shaft (8), a driving sprocket (14) rotatably installed on one side of the construction platform, and a rocking handle (15). The rocking handle (15) is connected to the installation shaft of the driving sprocket (14). The driving sprocket (14) and the driven sprocket (13) are connected by chain drive.

6. A movable steel box girder cantilever welding operating frame according to any one of claims 1 to 5, characterized in that: A fence plate one (2) is provided at the top edge of the moving platform, a fence plate two (5) is provided at the top edge of the construction platform, and a ladder (3) is arranged between the moving platform and the construction platform. The ladder (3) is arranged inside the fence plate one (2) and the fence plate two (5).

7. The movable steel box girder cantilever welding operating frame according to claim 1, characterized in that: The moving platform and the construction platform are connected by an X-shaped connecting framework (4). The connecting framework (4) is located on both sides of the moving platform and the construction platform. The bottom end of the moving framework (4) is connected to both ends of the construction platform, and the top ends of the moving framework (4) are respectively connected to the middle and one end of the moving platform.

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