Welding device for iron accessories of electric iron tower

Abstract

The utility model discloses an electric power iron tower iron accessory welding device which comprises a welding base, connecting rods are arranged on the two sides of the top end of a supporting frame in a penetrating mode, an extension strip is fixedly arranged at the top ends of the two connecting rods, a limiting block is fixedly arranged on one side of the top end of the extension strip, and an arc-shaped support is rotationally arranged at the upper end of one side of the extension strip. A welding rod is inserted into one side of the arc-shaped support, a torsional spring is inserted into one side of the arc-shaped support, and a lead screw is rotationally arranged in the middle of the top end of the supporting frame. According to the welding device, a worker pulls the grip to rotate the arc-shaped support so that the welding rod can make contact with the connecting area of an accessory and a steel pipe to conduct welding, the steel pipe is conveyed by the rolling wheel while welding is conducted, the connecting area can be evenly welded, and after welding is finished, the grip is released, and the arc-shaped support rebounds to the original position under the action of the torsion spring. And meanwhile, the situation that the welding device is disorderly placed anywhere like a common handheld welding device is avoided, and the use convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power iron tower construction, in particular to a welding device for iron accessories of a power iron tower. Background Art

[0002] Power towers are an important part of the power system, used to support and fix power lines to ensure the stable operation of the power system. Power towers are usually built by connecting steel pipes using connecting iron accessories. In the process of building power towers, it is necessary to fix steel pipes of different lengths and shapes at the upper ends of each steel pipe so that it has better support and wind resistance after construction. When using iron accessories to connect steel pipes, it is necessary to use welding equipment to weld the iron accessories to the outer surface of the steel pipe to facilitate the connection of other steel pipes.

[0003] In view of this, Chinese Patent No. CN216966851U proposes a welding device for iron accessories of power towers. When the steel pipe is rotated, the welding head can weld the connection between the steel pipe and the flange without manual rotation welding. In this way, the use height of the welding head can be adjusted so that it can weld steel pipes of different heights, and the welding efficiency can be improved, which is convenient for use. However, the welding head in the above technical solution is still in the original position after welding and cannot be adjusted. It is very inconvenient to take the welded steel pipe. Steel pipes with larger diameters are prone to hit the welding head during installation and disassembly, causing damage to it. Ordinary welding heads require staff to hold them in hand for use, and it is not convenient to place them anywhere after use, thereby reducing the convenience of using the device. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a welding device for iron accessories of a power tower to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model proposes a welding device for iron accessories of a power tower, comprising a welding base, wherein an automatic springback welding mechanism with adjustable distance is arranged at the upper end of the welding base;

[0006] The distance-adjustable automatic rebound welding mechanism includes a support frame fixed at the edge of one side of the top of the welding base, connecting rods are inserted on both sides of the top of the support frame, extension bars are fixed on the tops of the two connecting rods, a limit block is fixed on one side of the top of the extension bar, an arc-shaped bracket is rotatably provided at the upper end of one side of the extension bar, a welding rod is inserted on one side of the arc-shaped bracket, a torsion spring is inserted on one side of the arc-shaped bracket, and one end of the torsion spring is fixedly connected to the inner wall of the extension bar, a screw rod is rotatably provided at the middle position of the top of the support frame, and the outer wall of the screw rod is threadedly connected to the inner wall of the extension bar.

[0007] In one example, a handle is fixedly provided on one side of the outer wall of the arc-shaped bracket, a first bevel gear is rotatably provided on the bottom of the inner wall of the support frame, and one end of the screw rod is fixedly connected to one side of the first bevel gear.

[0008] In one example, a second bevel gear is rotatably provided on one side of the inner wall of the support frame, and the outer wall of the first bevel gear is meshed with the outer wall of the second bevel gear. A rotating handle is inserted into one side of the outer wall of the support frame, and one end of the rotating handle is fixedly connected to one side of the second bevel gear.

[0009] In one example, limiting slide grooves are provided on both sides of the top of the welding base, and sliding blocks are slidably provided on the inner walls of the two limiting slide grooves, and limiting brackets are inserted into the tops of the two sliding blocks.

[0010] In one example, outer walls at both ends of the limit bracket are sleeved with springs, and one end of the two springs is fixedly connected to the top of the two sliders respectively, and a clamping strip is fixedly provided at the middle position of the bottom of the limit bracket.

[0011] In one example, a groove is provided at the top of the welding base between the two limiting slide grooves, electric telescopic rods are fixedly provided at the edges on both sides of the inner wall of the groove, and connecting frames are fixedly provided at the output ends of the two electric telescopic rods.

[0012] In one example, rollers are rotatably provided on the inner walls of one end of the two connecting frames, a motor is fixedly provided on one side of one of the connecting frames, and one end of one of the rollers passes through the inner wall of the connecting frame and is fixedly connected to the output end of the motor.

[0013] In one example, a switch panel is fixedly provided on one side of the welding base, and the electric telescopic rod and the motor are electrically connected to an external power supply through the switch panel.

[0014] The utility model provides a welding device for the iron accessories of a power tower, which can bring the following beneficial effects:

[0015] 1. A welding device for iron accessories of a power tower. The worker pulls the handle to rotate the arc bracket so that the welding rod contacts the connection area between the accessory and the steel pipe for welding. The roller transfers the steel pipe while being welded so that the connection area can be welded evenly. After the welding is completed, the handle is released and the arc bracket rebounds to its original position under the action of the torsion spring, and is blocked by the limit block so that it does not rebound excessively. At the same time, it will not be placed randomly like an ordinary handheld welding device, thereby improving the convenience of using the device.

[0016] 2. A welding device for iron accessories of an electric power tower. During the welding process, after placing the connecting accessory at the designated position on the upper end of the steel pipe, pull up the limit bracket and slide the slider in the limit slide groove to adjust the position of the limit bracket so that the clamping strip at the bottom is aligned with the accessory, and release the limit bracket so that the clamping strip is clamped on the upper end of the connecting accessory under the action of the spring to squeeze it at this position. During welding, manual support is not required by the staff, so skin burns are prevented, and the safety of the device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the springback welding mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the first helical gear connected to the second helical gear of the utility model;

[0021] Figure 4 It is a schematic diagram of the overall structure of the welding base of the utility model.

[0022] In the figure: 1. welding base; 2. support frame; 3. connecting rod; 4. extension bar; 5. limit block; 6. arc bracket; 7. welding rod; 8. torsion spring; 9. handle; 10. screw; 11. first bevel gear; 12. second bevel gear; 13. rotating handle; 14. limit slide groove; 15. slider; 16. limit bracket; 17. spring; 18. clamping strip; 19. electric telescopic rod; 20. connecting frame; 21. roller; 22. motor. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0024] The examples are as follows:

[0025] The utility model provides Figure 1-4 The welding device for the iron accessories of a power tower shown in the figure comprises a welding base 1, and an automatic springback welding mechanism with adjustable distance is arranged on the upper end of the welding base 1;

[0026] The distance-adjustable automatic rebound welding mechanism includes a support frame 2 fixed at the edge of one side of the top of the welding base 1, connecting rods 3 are inserted on both sides of the top of the support frame 2, extension bars 4 are fixed on the tops of the two connecting rods 3, and a limit block 5 is fixed on one side of the top of the extension bar 4. An arc bracket 6 is rotatably provided at the upper end of one side of the extension bar 4, a welding rod 7 is inserted on one side of the arc bracket 6, a torsion spring 8 is inserted on one side of the arc bracket 6, and one end of the torsion spring 8 is fixedly connected to the inner wall of the extension bar 4, and a screw rod 10 is rotatably provided in the middle position of the top of the support frame 2, and the outer wall of the screw rod 10 is threadedly connected to the inner wall of the extension bar 4.

[0027] A handle 9 is fixedly provided on one side of the outer wall of the arc-shaped bracket 6 , a first bevel gear 11 is rotatably provided on the bottom of the inner wall of the support frame 2 , and one end of the screw rod 10 is fixedly connected to one side of the first bevel gear 11 .

[0028] A second bevel gear 12 is rotatably provided on one side of the inner wall of the support frame 2, and the outer wall of the first bevel gear 11 is meshed with the outer wall of the second bevel gear 12. A rotating handle 13 is inserted into one side of the outer wall of the support frame 2, and one end of the rotating handle 13 is fixedly connected to one side of the second bevel gear 12. The rotating handle 13 is rotated according to the position of the welding area to mesh the first bevel gear 11 and the second bevel gear 12, and then the screw rod 10 is rotated to adjust the height of the extension bar 4, so that the contact position of the welding rod 7 can be adjusted, and after the welding rod 7 is used up, a new welding rod 7 can be inserted at one end of the arc-shaped bracket 6, and after being inserted into the inner wall thereof, it will not fall off easily due to the squeezing of the inner wall;

[0029] Furthermore, limiting slide grooves 14 are provided on both sides of the top of the welding base 1 , and sliding blocks 15 are slidably provided on the inner walls of the two limiting slide grooves 14 , and limiting brackets 16 are inserted at the tops of the two sliding blocks 15 .

[0030] The outer walls of both ends of the limiting bracket 16 are sleeved with springs 17, and one end of the two springs 17 is fixedly connected to the top of the two sliders 15 respectively. A clamping strip 18 is fixedly provided at the middle position of the bottom of the limiting bracket 16, and the spring 17 pulls the limiting bracket 16 so that the clamping strip 18 is squeezed on the upper end of the connecting accessory to fix it on the surface of the steel pipe. The elastic force of the spring 17 is sufficient to squeeze the accessory to make it firmly connected to the steel pipe, and it will not be affected by external forces and will not cause its position to shift. At the same time, the width of the clamping strip 18 is relatively narrow, and it is squeezed at the edge of the accessory, which does not affect the welding of the welding rod 7 to it.

[0031] Furthermore, a groove is provided at the top of the welding base 1 between the two limiting slide grooves 14 , and electric telescopic rods 19 are fixedly provided at the edges on both sides of the inner wall of the groove, and connecting frames 20 are fixedly provided at the output ends of the two electric telescopic rods 19 .

[0032] A roller 21 is rotatably provided on the inner wall at one end of the two connecting frames 20, a motor 22 is fixedly provided on one side of one of the connecting frames 20, and one end of one of the rollers 21 passes through the inner wall of the connecting frame 20 and is fixedly connected to the output end of the motor 22. The surface of the roller 21 is made of soft material so that it will not cause wear when squeezing the two sides of the steel pipe.

[0033] A switch panel is fixedly provided on one side of the welding base 1, and the electric telescopic rod 19 and the motor 22 are electrically connected to an external power source through the switch panel.

[0034] Working principle: When using the power tower iron accessory welding device in this design, first, the steel pipe to be welded with the iron accessory needs to be placed in the groove at the top of the welding base 1, and the electric telescopic rod 19 is started to make the two connecting frames 20 with the rollers 21 contact and squeeze the steel pipe, and the motor 22 is started to make one of the rollers 21 roll, and then the two rollers 21 cooperate to roll on the surface of the steel pipe to transfer the steel pipe for welding of iron accessories at different positions. During welding, the connecting accessory is placed on the surface of the steel pipe and squeezed and positioned by the limiting mechanism. The staff pulls the handle 9 to rotate the arc bracket 6 to rotate so that the welding rod 7 contacts the connection area between the accessory and the steel pipe for welding. The roller 21 transfers the steel pipe while being welded so that the connection area The domain can be welded evenly. After completion, the handle 9 is released, and the arc bracket 6 rebounds to its original position under the action of the torsion spring 8, and is blocked by the limit block 5 so that it does not rebound excessively. At the same time, it will not be placed anywhere like an ordinary handheld welding device, thereby improving the convenience of using the device. During the welding process, after placing the connecting accessory at the designated position on the upper end of the steel pipe, the limit bracket 16 is pulled up and the slider 15 is slid in the limit slide groove 14 to adjust the position of the limit bracket 16 so that the clip 18 at the bottom is aligned with the accessory, and the limit bracket 16 is released. Under the action of the spring 17, the clip 18 is stuck on the upper end of the connecting accessory to squeeze it in this position. During welding, there is no need for manual support by the staff, which prevents burns to the skin and improves the safety of the device.

[0035] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0036] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A welding device for iron accessories of a power tower, comprising a welding base (1), characterized in that: The upper end of the welding base (1) is provided with an automatic springback welding mechanism with adjustable distance; The distance-adjustable automatic rebound welding mechanism comprises a support frame (2) fixed at the edge of one side of the top of the welding base (1), connecting rods (3) are inserted on both sides of the top of the support frame (2), extension bars (4) are fixed on the tops of the two connecting rods (3), a limit block (5) is fixed on one side of the top of the extension bar (4), an arc bracket (6) is rotatably provided at the upper end of one side of the extension bar (4), a welding rod (7) is inserted on one side of the arc bracket (6), a torsion spring (8) is inserted on one side of the arc bracket (6), and one end of the torsion spring (8) is fixedly connected to the inner wall of the extension bar (4), a screw rod (10) is rotatably provided at the middle position of the top of the support frame (2), and the outer wall of the screw rod (10) is threadedly connected to the inner wall of the extension bar (4).

2. The welding device for iron accessories of a power tower according to claim 1, characterized in that: A handle (9) is fixedly provided on one side of the outer wall of the arc-shaped bracket (6), a first bevel gear (11) is rotatably provided on the bottom of the inner wall of the support frame (2), and one end of the screw rod (10) is fixedly connected to one side of the first bevel gear (11).

3. The welding device for iron accessories of a power tower according to claim 2, characterized in that: A second bevel gear (12) is rotatably provided on one side of the inner wall of the support frame (2), and the outer wall of the first bevel gear (11) is meshed with the outer wall of the second bevel gear (12); a rotating handle (13) is inserted through one side of the outer wall of the support frame (2), and one end of the rotating handle (13) is fixedly connected to one side of the second bevel gear (12).

4. The welding device for iron accessories of a power tower according to claim 1, characterized in that: Limiting grooves (14) are provided on both sides of the top of the welding base (1), and sliding blocks (15) are slidably provided on the inner walls of the two limiting grooves (14), and limiting brackets (16) are inserted at the tops of the two sliding blocks (15).

5. The welding device for iron accessories of a power tower according to claim 4, characterized in that: The outer walls of both ends of the limiting bracket (16) are sleeved with springs (17), and one end of the two springs (17) is fixedly connected to the top ends of the two sliders (15) respectively. A clamping strip (18) is fixedly provided at the middle position of the bottom of the limiting bracket (16).

6. The welding device for iron accessories of a power tower according to claim 4, characterized in that: A groove is provided at the top of the welding base (1) between the two limiting slide grooves (14), electric telescopic rods (19) are fixedly provided at the edges of both sides of the inner wall of the groove, and connecting frames (20) are fixedly provided at the output ends of the two electric telescopic rods (19).

7. The welding device for iron accessories of a power tower according to claim 6, characterized in that: A roller (21) is rotatably provided on the inner wall of one end of the two connecting frames (20), a motor (22) is fixedly provided on one side of one of the connecting frames (20), and one end of one of the rollers (21) passes through the inner wall of the connecting frame (20) and is fixedly connected to the output end of the motor (22).

8. The welding device for iron accessories of a power tower according to claim 7, characterized in that: A switch panel is fixedly provided on one side of the welding base (1), and the electric telescopic rod (19) and the motor (22) are electrically connected to an external power source via the switch panel.

Images