Steel pipe butt joint device for construction of extra-large bridge steel pipes

Abstract

The utility model belongs to the technical field of bridge engineering, and particularly relates to a steel pipe butt joint device for extra-large bridge steel pipe construction, which comprises a threaded rod, a mounting plate fixedly connected with the other end of the threaded rod, a guide rod fixedly connected with one side of the mounting plate, a sleeve fixed on one side of the mounting plate, an electrode plate mounted on one side in the sleeve, and an electrode slice assembled on one side of a movable rod. An extension spring is fixedly connected between the electrode plate and the sleeve, and an auxiliary roller is mounted in the mounting rack; a threaded rod is rotated through a handle, an auxiliary roller is attached to the outer wall of a butt joint gap of a steel pipe under cooperation of a guide rod, in the rotating process of the steel pipe, if the phenomenon of irregular butt joint exists, the auxiliary roller can push a movable rod to move towards the interior of a sleeve, an extension spring is made to stretch inwards, an electrode plate makes contact with an electrode slice, and a warning lamp is controlled to be turned on; and an operator is reminded of untidy butt joint and need of adjustment, so that the welding quality can be ensured, and the stability of bridge construction is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a steel pipe butt joint device for steel pipe construction of extra-large bridges. Background Art

[0002] During the construction of super-large bridges, in order to support the weight of the bridge and ensure its structural stability, steel pipe arches are often used as the main load-bearing structure of the bridge. In order to ensure the high precision requirements of the steel pipes, the steel pipes are usually butt-welded in the processing site.

[0003] In the prior art, the steel pipe is generally stably fixed on the docking device by a clamp, and the screw rod is driven by a driving motor to rotate so that the two clamps are close to each other to achieve the docking of the steel pipe. Then, the gap of the steel pipe is welded by a welding head, thereby achieving the docking of the steel pipe.

[0004] However, the above-mentioned steel pipe butt joint device still has some problems. In practical applications, before the steel pipes are connected and assembled, the scattered steel pipes are spliced ​​and the steel pipes need to be butt-welded. In the prior art, it is not possible to detect whether the two steel pipes are neatly butted. Untidy butt joints will affect the quality of welding and result in a weak weld, which will affect the stability of bridge construction. Therefore, in view of the above-mentioned problems, a steel pipe butt joint device for steel pipe construction of extra-large bridges is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the background technology, the utility model proposes a steel pipe butt joint device for the construction of extra-large bridge steel pipes.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model is a steel pipe docking device for steel pipe construction of extra-large bridges, comprising a main board, a fixing frame is fixedly connected to the middle end of the top side of the main board, a threaded rod is internally threaded on one side of the fixing frame, a handle is fixedly connected to one end of the threaded rod, a mounting plate is fixedly connected to the other end of the threaded rod, a guide rod is fixedly connected to one side of the mounting plate, one end of the guide rod slides through the fixing frame and extends to the outside thereof, a sleeve is fixedly provided on one side of the mounting plate, an electrode plate is installed on one side of the inner side of the sleeve, a movable rod is slidably installed on the other end of the sleeve, an electrode sheet is mounted on one side of the movable rod, a tension spring is fixedly connected between one side of the electrode sheet and the sleeve, the tension spring is sleeved on the outer wall of the movable rod, a mounting frame is fixedly provided on the other side of the movable rod, an auxiliary roller is installed on the inner side of the mounting frame through a rotating shaft, so as to detect whether the steel pipe docking is neat, thereby ensuring the quality of welding and improving the stability of bridge construction.

[0007] Preferably, two support plates are symmetrically installed on the top side of the main board, and two support seats are symmetrically installed on both sides of the top side of the support plate, and support rollers are installed between each group of support seats through pin shafts, which can provide stable support for the steel pipe and facilitate subsequent fixation of the steel pipe.

[0008] Preferably, a servo motor is installed on one side of the main board, and a bidirectional screw rod is installed on the output end of the servo motor. Two slide grooves are symmetrically opened inside the top side of the main board, and sliding blocks are slidably installed inside the slide grooves. Screw holes are opened inside the sliding blocks, and one end of the bidirectional screw rod passes through the screw hole and is rotatably installed on the inner wall of the slide groove, thereby realizing the fixation of steel pipes of different lengths and improving the practicability of the device.

[0009] Preferably, a fixing plate is installed on the top side of the sliding block, a back plate is installed on one side of the fixing plate, a driving motor is installed on one side of the fixing plate, the output end of the driving motor passes through the back plate and is equipped with a rotating roller, three telescopic rods are equidistantly installed on the outer wall of the rotating roller, and arc-shaped support plates are fixed on the active ends of the telescopic rods, which can fix the steel pipe to prevent the steel pipe from deformation or displacement during the docking process and enable the steel pipe to rotate to achieve all-round detection and welding operations.

[0010] Preferably, a cylinder is installed on the top side of the fixed frame, a rod barrel is fixedly installed on the active end of the cylinder, a compression spring is fixedly connected to the inside of the rod barrel, one end of the compression spring is fixedly connected to a sliding rod, one end of the sliding rod extends to the outside of the rod barrel and is installed with a welding head, the cylinder can push the welding head to contact the steel pipe to perform welding operations, thereby improving work efficiency.

[0011] Preferably, a control panel is installed on one side of the fixing frame, and a warning light is installed on the top side of the fixing frame. The control panel is electrically connected to the electrode plate and the electrode sheet and the warning light, wherein the control panel is used for signal transmission to the electrode plate and the electrode sheet, as well as for operation control of the warning light and electrical components inside the device, thereby improving the operating accuracy and automation degree of the docking device.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model rotates the threaded rod through the handle, and with the cooperation of the guide rod, the auxiliary roller fits the outer wall of the butt joint gap of the steel pipe. During the rotation of the steel pipe, if there is uneven butt joint, the auxiliary roller will push the movable rod to move inside the sleeve, and stretch the tension spring, so that the electrode plate contacts the electrode sheet, and control the warning light to light up, reminding the operator that the butt joint is not neat and needs to be adjusted, so as to ensure the quality of welding and improve the stability of bridge construction;

[0014] 2. The cylinder of the utility model will push the rod barrel and the slide rod forward to make the welding head contact with the steel pipe. Under the action of the compression spring, the welding head can fit closely to the surface of the steel pipe to ensure the welding quality. At this time, the welding head starts to work and welds the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the structure of the medium axis side view of the utility model;

[0017] Figure 2 A schematic diagram of the structure of the detection components for neat docking;

[0018] Figure 3 This is a schematic diagram of the main structure inside the motherboard;

[0019] Figure 4 It is a schematic diagram of the fixed and rotating components structure;

[0020] Figure 5 Schematic diagram of the welding assembly structure.

[0021] In the figure: 1. main board; 2. fixing frame; 3. threaded rod; 4. handle; 5. mounting plate; 6. guide rod; 7. sleeve; 8. electrode plate; 9. movable rod; 10. electrode sheet; 11. tension spring; 12. mounting frame; 13. auxiliary roller; 14. support plate; 15. support seat; 16. support roller; 17. servo motor; 18. bidirectional screw rod; 19. slide groove; 20. sliding block; 21. fixing plate; 22. abutment plate; 23. driving motor; 24. rotating roller; 25. telescopic rod; 26. arc support plate; 27. cylinder; 28. rod barrel; 29. ​​compression spring; 30. slide rod; 31. welding head; 32. control panel; 33. warning light. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-2As shown, a steel pipe docking device for steel pipe construction of a super-large bridge comprises a main board 1, a fixing frame 2 is fixedly connected to the middle end of the top side of the main board 1, a threaded rod 3 is internally threadedly connected to one side of the fixing frame 2, a handle 4 is fixedly connected to one end of the threaded rod 3, a mounting plate 5 is fixedly connected to the other end of the threaded rod 3, a guide rod 6 is fixedly connected to one side of the mounting plate 5, one end of the guide rod 6 slides through the fixing frame 2 and extends to the outside thereof, a sleeve 7 is fixedly provided on one side of the mounting plate 5, an electrode plate 8 is installed on one side of the inner side of the sleeve 7, a movable rod 9 is slidably installed on the other end of the sleeve 7, an electrode sheet 10 is mounted on one side of the movable rod 9 inside the sleeve 7, a tension spring 11 is fixedly connected between one side of the electrode sheet 10 and the sleeve 7, a mounting frame 12 is fixedly provided on the other side of the movable rod 9, an auxiliary roller 13 is installed inside the mounting frame 12 through a rotating shaft;

[0024] A control panel 32 is installed on one side of the fixing frame 2, and a warning light 33 is installed on the top side of the fixing frame 2. When working, in actual application, before the steel pipes are connected and assembled, the scattered steel pipes are spliced, and the steel pipes need to be butt-welded. In the prior art, it is not possible to detect whether the two steel pipes are neatly butted. Untidy butt joints will affect the quality of welding, resulting in a weak weld, which will affect the stability of bridge construction. The threaded rod 3 is rotated by the handle 4, and the auxiliary roller 13 is fitted with the outer wall of the butt gap of the steel pipe under the cooperation of the guide rod 6. The steel pipe is rotated during the rotation process. In the process, if there is uneven docking, the auxiliary roller 13 will push the movable rod 9 to move inside the sleeve 7, and stretch the tension spring 11, so that the electrode plate 8 contacts the electrode sheet 10. This signal can be detected by the control panel 32, and the warning light 33 can be controlled to light up, reminding the operator that the docking is uneven and needs adjustment. If the docking is neat, the movable rod 9 does not contact the electrode sheet 10, the circuit is disconnected, and the warning light 33 is not on, then welding operations can be carried out, which is convenient for detecting whether the steel pipe docking is neat, thereby ensuring the quality of welding and improving the stability of bridge construction.

[0025] See also Figure 3-4 As shown, two support plates 14 are symmetrically installed on the top side of the main board 1, and two support seats 15 are symmetrically installed on both sides of the top side of the support plate 14, and support rollers 16 are installed between each group of support seats 15 through pins;

[0026] A servo motor 17 is installed on one side of the main board 1, and a bidirectional screw rod 18 is installed on the output end of the servo motor 17. Two slide grooves 19 are symmetrically provided inside the top side of the main board 1. Sliding blocks 20 are slidably installed inside the slide grooves 19. Screw holes are provided inside the sliding blocks 20. One end of the bidirectional screw rod 18 passes through the screw hole and is rotatably installed on the inner wall of the slide groove 19.

[0027] A fixing plate 21 is installed on the top side of the sliding block 20, a backing plate 22 is installed on one side of the fixing plate 21, a driving motor 23 is installed on one side of the fixing plate 21, the output end of the driving motor 23 passes through the backing plate 22 and is equipped with a rotating roller 24, three telescopic rods 25 are evenly installed on the outer wall of the rotating roller 24, and arc-shaped support plates 26 are fixed on the active ends of the telescopic rods 25; when working, in the construction process of the super-large bridge, in order to support the weight of the bridge and ensure the stability of its structure, a steel pipe arch is often used as the main load-bearing structure of the bridge. In order to ensure the high precision requirements of the steel pipe, the steel pipe is usually butt-welded in the processing site. First, the steel pipe is placed on the support roller. 16, start the servo motor 17 to drive the bidirectional screw 18 to rotate, so that the sliding block 20 will move in the slide groove 19, and then the abutment plate 22 and the fixed plate 21 will move accordingly, so that one side of the steel pipe and the abutment plate 22 are pressed against each other. With the movement of the sliding block 20, the two steel pipes will dock, and then the telescopic rod 25 will be opened, and the active end of the telescopic rod 25 will be extended, so that the arc support plate 26 will fix it inside the steel pipe to prevent the steel pipe from deformation or displacement during the docking process. When the steel pipe needs to be inspected or welded, the two drive motors 23 are started at the same time to drive the rotating roller 24 to rotate, so that the steel pipes rotate at the same time at the same speed and direction, so as to realize all-round inspection and welding operations.

[0028] See also Figure 5 As shown, the top side of the fixing frame 2 is equipped with a cylinder 27, and the working end of the cylinder 27 is fixedly installed with a rod barrel 28, and the interior of the rod barrel 28 is fixedly connected with a compression spring 29, and one end of the compression spring 29 is fixedly connected with a slide bar 30, and one end of the slide bar 30 extends to the outside of the rod barrel 28 and is installed with a welding head 31; when working, welding is a strong connection method. Through welding, the end faces of the two steel pipes can be melted and re-solidified to form an indivisible whole, so as to ensure the stability of the bridge connection. When the steel pipes are neatly butt-jointed, the cylinder 27 will push the rod barrel 28 and the slide bar 30 to move forward, so that the welding head 31 contacts the steel pipe. Under the action of the compression spring 29, the welding head 31 can fit the surface of the steel pipe tightly to ensure the welding quality. At this time, the welding head 31 starts to work and welds the steel pipe.

[0029] Working principle: first, place the steel pipe on the support roller 16, start the servo motor 17 to drive the bidirectional screw 18 to rotate, so that the sliding block 20 will move in the slide groove 19, and then the abutment plate 22 and the fixed plate 21 will move accordingly, so that one side of the steel pipe and the abutment plate 22 are pressed against each other. With the movement of the sliding block 20, the two steel pipes will be docked, and then the telescopic rod 25 will be opened, and the working end of the telescopic rod 25 will be extended, so that the arc support plate 26 will fix it inside the steel pipe to prevent the steel pipe from being deformed or shifted during the docking process;

[0030] When the steel pipe needs to be inspected or welded later, the two drive motors 23 are started at the same time to drive the rotating rollers 24 to rotate, so that the steel pipes rotate at the same speed and direction at the same time, thereby realizing all-round inspection and welding operations;

[0031] Detection: The threaded rod 3 is rotated by the handle 4, and the auxiliary roller 13 is fitted with the outer wall of the joint gap of the steel pipe with the cooperation of the guide rod 6. During the rotation of the steel pipe, if there is uneven jointing, the auxiliary roller 13 will push the movable rod 9 to move inside the sleeve 7, and stretch the tension spring 11, so that the electrode plate 8 is in contact with the electrode sheet 10. This signal can be detected by the control panel 32, and the warning light 33 can be controlled to light up to remind the operator that the joint is not neat and needs to be adjusted. If the joint is neat, the movable rod 9 is not in contact with the electrode sheet 10, the circuit is disconnected, and the warning light 33 is not on, then the welding operation can be carried out, which is convenient for detecting whether the steel pipe joint is neat, thereby ensuring the quality of welding and improving the stability of bridge construction;

[0032] Welding: The cylinder 27 will push the rod tube 28 and the slide rod 30 forward, so that the welding head 31 contacts the steel pipe. Under the action of the compression spring 29, the welding head 31 can fit tightly to the surface of the steel pipe to ensure the welding quality. At this time, the welding head 31 starts to work and welds the steel pipe.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A steel pipe docking device for super-large bridge steel pipe construction, characterized in that: The invention comprises a main board (1), a fixing frame (2) is fixedly connected to the middle end of the top side of the main board (1), a threaded rod (3) is internally threadedly connected to one side of the fixing frame (2), one end of the threaded rod (3) is fixedly connected to a handle (4), the other end of the threaded rod (3) is fixedly connected to a mounting plate (5), one side of the mounting plate (5) is fixedly connected to a guide rod (6), one end of the guide rod (6) slides through the fixing frame (2) and extends to the outside thereof, a sleeve (7) is fixedly connected to one side of the mounting plate (5), the interior of the sleeve (7) An electrode plate (8) is installed on one side, and a movable rod (9) is installed and slidably penetrated on the other end of the sleeve (7). One side of the movable rod (9) is located inside the sleeve (7) and is equipped with an electrode sheet (10). A tension spring (11) is fixedly connected between one side of the electrode sheet (10) and the sleeve (7). The tension spring (11) is sleeved on the outer wall of the movable rod (9). A mounting frame (12) is fixed on the other side of the movable rod (9), and an auxiliary roller (13) is installed inside the mounting frame (12) through a rotating shaft.

2. The steel pipe docking device for super-large bridge steel pipe construction according to claim 1 is characterized by: Two support plates (14) are symmetrically mounted on the top side of the main board (1), and two support seats (15) are symmetrically mounted on both sides of the top side of each support plate (14), and support rollers (16) are mounted between each group of support seats (15) via pins.

3. The steel pipe docking device for super-large bridge steel pipe construction according to claim 2 is characterized by: A servo motor (17) is installed on one side of the main board (1), and a bidirectional screw rod (18) is installed on the output end of the servo motor (17). Two slide grooves (19) are symmetrically arranged inside the top side of the main board (1), and sliding blocks (20) are slidably installed inside the slide grooves (19). Screw holes are arranged inside the sliding blocks (20), and one end of the bidirectional screw rod (18) passes through the screw hole and is rotatably installed on the inner wall of the slide groove (19).

4. The steel pipe docking device for super-large bridge steel pipe construction according to claim 3 is characterized by: A fixing plate (21) is installed on the top side of the sliding block (20), a backing plate (22) is installed on one side of the fixing plate (21), a driving motor (23) is installed on one side of the fixing plate (21), an output end of the driving motor (23) passes through the backing plate (22) and is equipped with a rotating roller (24), three telescopic rods (25) are evenly installed on the outer wall of the rotating roller (24), and arc-shaped support plates (26) are fixed to the active ends of the telescopic rods (25).

5. The steel pipe butt joint device for super-large bridge steel pipe construction according to claim 4 is characterized in that: A cylinder (27) is mounted on the top side of the fixed frame (2), a rod barrel (28) is fixedly mounted on the active end of the cylinder (27), a compression spring (29) is fixedly connected to the interior of the rod barrel (28), one end of the compression spring (29) is fixedly connected to a slide bar (30), one end of the slide bar (30) extends to the outside of the rod barrel (28) and is mounted with a welding head (31).

6. The steel pipe docking device for super-large bridge steel pipe construction according to claim 5, characterized in that: A control panel (32) is mounted on one side of the fixing frame (2), a warning light (33) is mounted on the top side of the fixing frame (2), and the control panel (32) is electrically connected to the electrode plate (8), the electrode sheet (10) and the warning light (33), wherein the control panel (32) is used for signal transmission between the electrode plate (8) and the electrode sheet (10), and for operating and controlling the warning light (33) and electrical components inside the device.

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