Auxiliary welding device for installation of large-diameter pipeline

Abstract

The utility model discloses an auxiliary welding device for installation of a large-diameter pipeline, which relates to a welding device and comprises a main machine and a welding gun. A box body is fixedly installed above the main machine, a rotating shaft is rotatably installed in the box body, a first straight gear and a winding wheel are fixedly installed on the rotating shaft, a second straight gear is rotatably installed in the box body, the first straight gear is meshed with the second straight gear, a first bevel gear is fixedly installed on one side of the second straight gear, a wire sleeve is rotatably installed on one side of the box body, and a cleaning piece is arranged in the wire sleeve. The wire sleeve penetrates through the box body, a second bevel gear is fixedly installed on the outer wall of the wire sleeve, and the first bevel gear is connected with the second bevel gear in an engaged mode. The output cable is wound in the winding wheel, and the end, away from the main machine, of the output cable movably penetrates through the wire sleeve and is connected with the welding gun. The welding device solves the problems that in the prior art, due to the fact that an output cable is not long enough, a host needs to be moved frequently, or the cables are disordered in the cable output process, and safety accidents are stumbled, and the practicability and use convenience of the welding device are greatly improved.

Description

Technical Field

[0001] The utility model relates to a welding device, and more specifically, to an auxiliary welding device for the installation of large-diameter pipelines. Background Art

[0002] In the construction of large factories, it is often necessary to bury large-diameter pipelines. Since the diameters of these large-diameter pipelines are generally more than one meter, the joints of two large-diameter pipelines need to be welded. The usual method is to place the large-diameter pipeline in a trench, and after the docking of two large-diameter pipelines is completed, the worker places the welding device on site and welds the joints of the two pipelines after power-on. However, due to the large diameter of the large-diameter pipeline, after welding a certain length, the worker needs to move to facilitate the welding operation. According to on-site feedback, the output cable lengths of the original welders are generally insufficient. When the worker moves to a new position, the main body of the welding device also needs to move accordingly, otherwise it will be difficult to perform convenient and effective welding. And since the main body is always connected to the high-voltage wire, there is a certain risk of electric leakage during the movement of the main body, especially in a humid environment. To solve this problem, on-site technicians have also tried to lengthen the output cable, but the on-site operation space is small, and the lengthened cables are prone to being stacked in a messy manner, and workers are often tripped when moving. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an auxiliary welding device for the installation of large-diameter pipelines in view of the deficiencies of the prior art, which solves the problems in the prior art that the main body needs to be frequently moved due to the insufficient length of the output cable, or the safety accident of tripping caused by the mess of the output cable.

[0004] An auxiliary welding device for the installation of large-diameter pipelines according to the utility model includes a main body and a welding torch; the main body is connected to the welding torch through an output cable, a box body is fixedly installed above the main body, a rotating shaft is rotatably installed in the box body, a first spur gear and a winding wheel are fixedly installed on the rotating shaft, a second spur gear is rotatably installed in the box body, the first spur gear meshes with the second spur gear, a first bevel gear is fixedly installed on one side of the second spur gear, a wire sleeve is rotatably installed on one side of the box body, a cleaning member is arranged in the wire sleeve, the wire sleeve penetrates through the box body, a second bevel gear is fixedly installed on the outer wall of the wire sleeve, and the first bevel gear is meshed and connected with the second bevel gear; the output cable is wound in the winding wheel, and the end of the output cable away from the main body movably passes through the wire sleeve and is connected to the welding torch.

[0005] For further improvement, a ratchet wheel is fixedly installed on the rotating shaft. A paddle is rotatably installed in the box body through a torsion spring. A through groove is formed on one side of the box body. One end of the paddle penetrates through the through groove and extends to the outside of the box body. The other end of the paddle is inserted into the ratchet tooth groove of the ratchet wheel. A positioning post is fixedly installed in the box body, and the positioning post abuts against one side of the paddle.

[0006] For further improvement, one end of the rotating shaft penetrates through the box body, and a rocker is fixedly installed at the end of the rotating shaft.

[0007] Furthermore, the rocker is in a Z-shaped structure, and a cylinder is rotatably installed at one end of the rocker away from the rotating shaft.

[0008] For further improvement, the cleaning part includes a square shell and a cleaning cotton strip; a square hole is formed in the wire sleeve, the square shell is inserted into the square hole, the cleaning cotton strip is fixedly arranged in the square shell, and a wire hole is formed in the cleaning cotton strip.

[0009] Furthermore, covers are installed at both ends of the wire sleeve through bolts, and through holes are formed in the covers.

[0010] Furthermore, the diameter of the wire hole is smaller than the diameter of the output cable.

[0011] Beneficial effects

[0012] The advantages of the present utility model are as follows: Through the rewinder composed of a rotating shaft and a winding wheel, the output cable is wound on the winding wheel, solving the problems in the prior art that the host needs to be frequently moved due to the insufficient length of the output cable, or the tripping safety accidents caused by the disorder of the cable during the output cable process, greatly improving the practicability and convenience of use of the welding device. In addition, through the driving of the wire sleeve by two spur gears and two bevel gears, when the output cable is wound or unwound, the wire sleeve and the cleaning part inside it are both driven, so as to effectively clean the output cable. Especially when winding, the mud adhered to the output cable on the ground can be removed, ensuring the cleanliness of the output cable. Description of the drawings

[0013] Figure 1 It is a schematic structural diagram of the welding assisting device of the present utility model;

[0014] Figure 2 Based on Figure 1 The side schematic diagram of the internal structure of the box body;

[0015] Figure 3 It is a schematic diagram of the internal structure of the wire sleeve of the present utility model.

[0016] Wherein: 1 - main machine, 2 - output cable, 3 - welding torch, 4 - rotating shaft, 5 - ratchet wheel, 6 - winding wheel, 7 - paddle, 8 - positioning post, 9 - bevel gear one, 10 - bevel gear two, 11 - wire sleeve, 12 - spur gear one, 13 - spur gear two, 14 - square housing, 15 - cleaning cotton strip, 16 - cover, 17 - wire hole, 18 - through hole, 19 - box body. Specific implementation manner

[0017] The following combines with embodiments to further describe the present utility model, but does not constitute any limitation to the present utility model. Any person's limited modifications within the scope of the claims of the present utility model are still within the scope of the claims of the present utility model.

[0018] Refer to Figures 1 - 3 , a large-diameter pipeline installation auxiliary welding device of the present utility model includes a main machine 1 and a welding torch 3. The main machine 1 is connected to the welding torch 3 through an output cable 2. A box body 19 is fixedly installed above the main machine 1. A rotating shaft 4 is rotatably installed in the box body 19. One end of the rotating shaft 4 penetrates through the box body 19, and a rocker is fixedly installed at the end of the rotating shaft 4 to facilitate the winding of the output cable 2. Specifically, the rocker is in a Z-shaped structure, and a cylinder is rotatably installed at the end of the rocker away from the rotating shaft 4. When it is necessary to operate the rocker, only need to hold the cylinder and rotate the rocker. During the rotation process, the cylinder rotates relative to the rocker, which is more convenient for operation. A spur gear one 12 and a winding wheel 6 are fixedly installed on the rotating shaft 4. A spur gear two 13 is rotatably installed in the box body 19. The spur gear one 12 meshes with the spur gear two 13. A bevel gear one 9 is fixedly installed on one side of the spur gear two 13. A wire sleeve 11 is rotatably installed on one side of the box body 19. A cleaning member is provided in the wire sleeve 11. The wire sleeve 11 penetrates through the box body 19. A bevel gear two 10 is fixedly installed on the outer wall of the wire sleeve 11. The bevel gear one 9 is meshed with the bevel gear two 10. The output cable 2 is wound in the winding wheel 6, and the end of the output cable 2 away from the main machine 1 movably passes through the wire sleeve 11 and is connected to the welding torch 3.

[0019] After the worker moves the welding position, if the output cable 2 is not long enough, just pull the output cable 2 forcefully to unwind it from the winding wheel 6 of the box body 19; after welding, just rotate the rotating shaft 4 to wind up the output cable 2, which solves the problems in the prior art that the main machine needs to be frequently moved due to the insufficient length of the output cable, or the tripping safety accidents caused by the mess of the cable during the process of the output cable, and greatly improves the practicability and convenience of use of the welding device. In addition, through the drive of two spur gears and two bevel gears on the wire sleeve 11, when the output cable 2 is wound up or unwound, the wire sleeve 11 and the cleaning parts inside it are both driven, so that the output cable 2 can be effectively cleaned. Especially when winding up, the mud adhered to the output cable 2 on the ground can be removed, ensuring the cleanliness of the output cable 2. Moreover, due to the setting of multiple gears, when pulling the output cable 2 to unwind, the transmission friction between the gears will form a damping phenomenon on the rotating shaft 4, which can effectively prevent the rotating shaft 4 from rotating too fast due to excessive pulling force when pulling the output cable 2, resulting in over-unwinding.

[0020] Considering that there are other workers on the site, to prevent other workers from touching the rocker and causing mis-winding of the output cable 2, a ratchet 5 is fixedly installed on the rotating shaft 4 in this embodiment. A dial 7 is rotatably installed in the box body 19 through a torsion spring. A through groove is opened on one side of the box body 19. One end of the dial 7 passes through the through groove and extends to the outside of the box body 19. The other end of the dial 7 is inserted into the ratchet tooth groove of the ratchet 5. A positioning post 8 is fixedly installed in the box body 19, and the positioning post 8 abuts against one side of the dial 7. Among them, as Figure 1 shown, the direction of the ratchet teeth on the ratchet 5 is opposite to the unwinding direction. That is, when unwinding, the dial 7 is separated from the current ratchet tooth groove and will not block the ratchet teeth; but when winding up, since the dial 7 abuts against the lower part of the ratchet teeth, the rotation of the ratchet 5 is blocked, and thus the rotating shaft 4 cannot be rotated, effectively preventing the winding caused by accidentally rotating the rocker from affecting the welding operation of the worker. When winding up is needed, just press the dial 7 to make it away from the ratchet tooth groove, and then rotate the rotating shaft 4 through the rocker to wind up.

[0021] The cleaning part of this embodiment includes a square shell 14 and a cleaning cotton strip 15. A square hole is opened in the wire sleeve 11, and the square shell 14 is inserted into the square hole. The cleaning cotton strip 15 is fixedly arranged in the square shell 14, and a wire hole 17 with a diameter smaller than the diameter of the output cable 2 is opened in the cleaning cotton strip 15. Sealing caps 16 are installed at both ends of the wire sleeve 11 through bolts, and through holes 18 are opened in the sealing caps 16. Such a design enables the cleaning cotton strip 15 to rotate relative to the output cable 2, achieving a better cleaning effect and also making the cleaning part convenient to replace.

[0022] The working principle of the utility model is as follows: When the welding device is in use, first fix the main machine 1 at a suitable position on site, and then pull the output cable 2 to move the welding torch 3 to the place where welding is required on the large-diameter pipeline. Starting the main machine 1 can carry out the welding operation. During the welding process, if the output cable 2 is not long enough, pulling the output cable 2 forcefully can make the output cable 2 on the take-up reel 6 unwind, so that the worker can carry out the welding operation better. After welding is completed, press the paddle 7 to make it away from the ratchet groove, and then rotate the rotating shaft 4 through the rocker to wind up the output cable 2.

[0023] The above are only the preferred embodiments of the utility model. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, several deformations and improvements can still be made, and these will not affect the implementation effect of the utility model and the practicability of the patent.

Claims

1. A large diameter pipeline installation auxiliary welding device, comprising a main machine (1) and a welding gun (3); the main machine (1) is connected to the welding gun (3) via an output cable (2), characterized in that: A box (19) is fixedly mounted above the main machine (1), a rotating shaft (4) is rotatably mounted in the box (19), a spur gear 1 (12) and a winding wheel (6) are fixedly mounted on the rotating shaft (4), a spur gear 2 (13) is rotatably mounted in the box (19), the spur gear 1 (12) meshes with the spur gear 2 (13), a bevel gear 1 (9) is fixedly mounted on one side of the spur gear 2 (13), and a rotating shaft (4) is fixedly mounted on the rotating shaft (4). A wire sleeve (11) is rotatably mounted on the side, a cleaning member is arranged in the wire sleeve (11), the wire sleeve (11) passes through the box body (19), a bevel gear 2 (10) is fixedly mounted on the outer wall of the wire sleeve (11), and the bevel gear 1 (9) is meshedly connected with the bevel gear 2 (10); the output cable (2) is wound in the winding wheel (6), and the end of the output cable (2) away from the main machine (1) movably passes through the wire sleeve (11) and is connected to the welding gun (3).

2. A large diameter pipeline installation auxiliary welding device according to claim 1, characterized in that: A ratchet (5) is fixedly mounted on the rotating shaft (4); a paddle (7) is rotatably mounted in the box (19) via a torsion spring; a through slot is provided on one side of the box (19); one end of the paddle (7) passes through the through slot and extends to the outside of the box (19); and the other end of the paddle (7) is inserted into a ratchet slot of the ratchet (5).

3. A large diameter pipeline installation auxiliary welding device according to claim 2, characterized in that: A positioning column (8) is fixedly installed in the box body (19), and the positioning column (8) abuts against one side of the paddle (7).

4. The large diameter pipeline installation auxiliary welding device according to claim 1 is characterized in that: One end of the rotating shaft (4) passes through the box body (19), and a rocker is fixedly mounted on the end of the rotating shaft (4).

5. A large diameter pipeline installation auxiliary welding device according to claim 4, characterized in that: The rocker has a Z-shaped structure, and a cylinder is rotatably mounted on one end of the rocker away from the rotating shaft (4).

6. The large diameter pipeline installation auxiliary welding device according to claim 1 is characterized in that: The cleaning member comprises a square shell (14) and a cleaning cotton strip (15); a square hole is provided in the wire sleeve (11), the square shell (14) is inserted into the square hole, the cleaning cotton strip (15) is fixedly arranged in the square shell (14), and a wire hole (17) is provided in the cleaning cotton strip (15).

7. The large diameter pipeline installation auxiliary welding device according to claim 6 is characterized in that: Both ends of the wire sleeve (11) are mounted with covers (16) via bolts, and a through hole (18) is provided in the cover (16).

8. The large diameter pipeline installation auxiliary welding device according to claim 6 is characterized in that: The diameter of the wire hole (17) is smaller than the diameter of the output cable (2).

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