Automatic welding device for rigid directly-buried pipe

Abstract

The utility model relates to an automatic welding device for a rigid directly-buried pipe, which comprises an automatic welding trolley, a control assembly, a pipeline clamp, a rotating bearing, a telescopic mechanical arm, a walking wheel, an automatic welding device, an adjustable biting tool and a lifting unit, traveling wheels are arranged at the bottom of the automatic welding trolley, an automatic welding device is arranged at the top of the automatic welding trolley, telescopic mechanical arms are symmetrically arranged on the outer surfaces of the two sides of the automatic welding trolley, adjustable biting tools are arranged at the ends of the telescopic mechanical arms, and pipeline tongs are arranged on the two sides of the adjustable biting tools in the length direction. The utility model has the beneficial effects that the welding quality of the pipeline is effectively controlled, the welding quality of each section of pipeline is ensured, the construction is convenient, and the working efficiency is improved, so that the purposes of saving time, reducing the labor intensity of workers and ensuring the construction quality are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of external direct-buried pipe networks, in particular to an automatic welding device for rigid direct-buried pipes. Background Art

[0002] At present, when constructing rigid direct buried pipes for external networks, manual or mechanical rotary welding of rigid direct buried pipes is usually adopted on site. If there is groundwater during the butt welding construction of rigid direct buried pipes, the working conditions on the construction site will cause inconvenience to both manual welding and mechanical welding. At the same time, rigid direct buried pipes are usually long, and the horizontality of the rigid straight-through pipes cannot be guaranteed. In addition, the terrain is complex, and large-scale lifting equipment cannot be stationary for a long time to assist in adjusting the welding construction, which affects the welding quality and also poses a safety hazard to the welding construction.

[0003] The Chinese invention patent with authorization announcement number CN113695807A discloses "an automated pipeline welding equipment and welding method". The patent uses a machine to limit and clamp the square steel pipe and weld it after butt joint. During welding, it ensures that the welding position is always in a tight state, and there is no need to manually move the butt joint position, which reduces the burden on the staff. However, the patent cannot move freely, the equipment is not flexible, and is not suitable for butt welding of rigid direct buried pipes in outdoor direct buried pipe networks. In addition, the clamping method in the patent is limited and is only limited to small pipe fittings processed in factories. It cannot limit and clamp large pipes in outdoor pipe networks, cannot perform butt welding on large pipes, cannot guarantee the horizontality of large pipe welding, and cannot guarantee the welding effect of large pipes. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides an automatic welding device for rigid direct buried pipes. The automatic welding device for rigid direct buried pipes can automatically weld the joints of two steel pipes. At the same time, the lifting unit on the device can also be used to adjust the direction and position of the pipeline, control the horizontality of the rigid direct buried pipe, effectively control the welding quality of the pipeline, and ensure the welding quality of each section of the pipeline, which not only facilitates construction but also improves work efficiency, thereby achieving the purpose of saving time, reducing labor intensity, and ensuring construction quality.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A rigid direct buried pipe automatic welding device includes an automatic welding trolley, a control integration, a pipe clamp, a rotating bearing, a telescopic mechanical arm, a traveling wheel, an automatic welder, an adjustable bite and a lifting unit. The control integration controls the automatic welding trolley, the automatic welding trolley is provided with traveling wheels at the bottom, an automatic welder is provided at the top, and telescopic mechanical arms are symmetrically provided on the outer surfaces of both sides. Adjustable bites are provided at the ends of the telescopic mechanical arms, and pipe clamps are provided on both sides of the length of the adjustable bite. A lifting unit is provided at the rear end of the automatic welding trolley.

[0007] Furthermore, the control integration controls the front and rear movement, left and right movement, and lifting and hoisting control assembly of the automatic welding device.

[0008] Furthermore, the lifting unit is divided into two parts, which are respectively arranged on both sides of the tail end of the automatic welding carriage, and the lifting units on both sides correspond to the telescopic mechanical arms on both sides.

[0009] Furthermore, the lifting unit includes a lifting boom, a lifting jib and a hook. The lifting boom is arranged at the tail end of the automatic welding trolley, the lifting jib is arranged on the top of the lifting boom, and the hook is arranged at the end of the lifting jib.

[0010] Furthermore, the automatic welder is arranged between the telescopic mechanical arms on both sides.

[0011] Furthermore, at least two of the pipe clamps are provided on one side of the adjustable bite, and the spacing between the pipe clamps is adjustable on the adjustable bite.

[0012] Furthermore, a rotary bearing is provided inside the pipe clamp.

[0013] Furthermore, the traveling wheel is a universal wheel with a brake.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1) The automatic welding trolley is suitable for butt welding construction in different terrain environments and has a wide range of applications. It has a built-in lifting unit to assist in welding construction, which can ensure the construction quality of direct buried pipe welding, improve the welding construction effect, and is easy for operators to operate;

[0016] 2) The device has a simple structure, convenient operation, integrated control, high welding construction flexibility, high welding efficiency, rapid welding, and a high degree of automation;

[0017] 3) Automatic welding reduces the labor intensity of construction workers, reduces workload, improves work efficiency, and makes welding construction flexible and convenient, highly practical, effectively ensuring the quality of welding welds and welding construction quality, with high economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of an automatic welding device for rigid direct buried pipes of the utility model.

[0019] Figure 2 This is a main structural view of an automatic welding device for rigid direct buried pipes according to the present invention.

[0020] In the figure: 1. Automatic welding trolley; 2. Control integration; 3. Pipe clamp; 4. Rotary bearing; 5. Telescopic robotic arm; 6. Travel wheel; 7. Automatic welder; 8. Adjustable bite; 9. Lifting boom; 10. Lifting jib; 11. Hook; 12. Rigid direct buried pipe. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0022] like Figure 1-Figure 2 As shown, the working principle of the structure of an automatic welding device for rigid direct buried pipes: the walking wheels 6 of the automatic welding device can move freely in the pipe pit under different working conditions, and the operation is flexible and convenient. The rigid direct buried pipes 12 that need to be welded on both sides are lifted by the lifting boom 9, the lifting arm 10 and the hook 11, and the rigid direct buried pipes 12 that need to be welded on both sides are rotated and fixed by using the telescopic mechanical arm 5, the pipe clamp 3, the rotating bearing 4 and the adjustable bite 8. The butt welds of the rigid direct buried pipes 12 are welded by the automatic welder 7, and the control integration completes the automated control with high welding efficiency. During the welding process, the lifting boom 9, the lifting arm 10 and the hook 11 clamp the welding distal end of the rigid direct buried pipe 12, and the rigid direct buried pipes 12 on both sides are guaranteed to be horizontal, thereby improving the welding quality, reducing the workload of the construction personnel, and improving the welding level. It is not affected by the terrain and construction environment, has strong practicality, a wide range of applications and high economic value.

[0023] like Figure 1-Figure 2 As shown, an automatic welding device for rigid direct-buried pipes includes an automatic welding trolley 1, a control integration 2, a pipe clamp 3, a rotating bearing 4, a telescopic mechanical arm 5, a walking wheel 6, an automatic welder 7, an adjustable bite 8, a lifting boom 9, a lifting jib 10 and a hook 11. The control integration 2 controls the automatic welding trolley 1. The bottom of the automatic welding trolley 1 is provided with a walking wheel 6, and the movement of the device is realized by the walking wheel. An automatic welder 7 is provided on the top. After the rigid direct-buried pipe 12 is fixed, the welding rod is filled for welding. A telescopic mechanical arm 5 is symmetrically provided on the outer surface of both sides. The telescopic mechanical arm 5 is a device for docking and fixing two rigid direct-buried pipes 12 with different diameters and different distances. The end face of the telescopic mechanical arm 5 is provided with an adjustable bite 8. Pipe clamps 3 are provided on both sides of the length of the adjustable bite 8. The pipe clamp 3 is used to fix rigid direct-buried pipes 12 of different diameters. It is a clamp that effectively fixes the rigid direct-buried pipe 12. A lifting unit is provided at the tail end of the automatic welding trolley 1.

[0024] Furthermore, the control integration 2 controls the front and rear movement, left and right movement, and lifting and hoisting control assembly of the automatic welding device.

[0025] like Figure 2 As shown, further, the lifting unit is divided into two parts, which are respectively arranged on both sides of the tail end of the automatic welding trolley 1. The lifting units on both sides correspond to the telescopic mechanical arms 5 on both sides. The lifting units and the telescopic mechanical arms 5 and the pipe clamps 3 cooperate to install and fix the rigid direct-buried pipes 12 that need to be welded on both sides. During welding, the lifting units on both sides respectively clamp the distal ends of the rigid direct-buried pipes 12, and cooperate with the telescopic mechanical arms 5 and the pipe clamps 3 on both sides to keep the rigid direct-buried pipes 12 level during the welding process, thereby improving the welding quality.

[0026] like Figure 2 As shown, further, the lifting unit includes a lifting boom 9, a lifting jib 10 and a hook 11, the lifting boom 9 is arranged at the tail end of the automatic welding trolley 1, the lifting jib 10 is arranged on the top of the lifting boom 9, and the hook 11 is arranged at the end of the lifting jib 10. The lifting unit composed of the lifting boom 9, the lifting jib 10 and the hook 11 is arranged on the automatic welding device, and cooperates with the automatic welding device to perform welding work. There is no need to consider the lifting construction conditions. The lifting work is flexible to operate, and the lifting and welding work are completed together, which saves the laying progress of the rigid direct buried pipe 12 and improves the construction efficiency.

[0027] like Figure 1 As shown, further, the automatic welder 7 is arranged in the middle of the telescopic robotic arms 5 on both sides. The automatic welder 7 is responsible for the butt welding of the two rigid direct-buried pipes 12. The telescopic robotic arms 5 on both sides fix the rigid direct-buried pipes 12, and the automatic welder 7 welds the weld in the middle to achieve automatic welding.

[0028] Furthermore, at least two pipe clamps 3 are provided on one side of the adjustable bite 8, and the distance between the two pipe clamps 3 on the adjustable bite 8 can be freely adjusted to ensure that the welded rigid direct buried pipe 12 is balanced and stable at the proximal end of the welding, thereby improving the welding quality.

[0029] like Figure 1 As shown, further, a rotary bearing 4 is provided on the inner side of the pipe clamp 3. The rotary bearing 4 is a key component for connecting the pipe clamp 3 to the telescopic robotic arm 5 to rotate the rigid direct buried pipe 12. When the rigid direct buried pipe 12 rotates to weld other weld positions, the rotary bearing 4 reduces friction and improves the surface quality of the rigid direct buried pipe.

[0030] Furthermore, the travel wheel 6 is a universal wheel with a brake. The universal wheel with a brake can ignore the terrain requirements, allowing the automatic welding device to move freely on the construction site.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. An automatic welding device for rigid buried pipes, comprising an automatic welding trolley, a control assembly, a pipe clamp, a rotary bearing, a telescopic mechanical arm, a travel wheel, an automatic welder, an adjustable bite and a lifting unit, characterized in that: The control integration controls the automatic welding trolley, the automatic welding trolley is provided with walking wheels at the bottom, an automatic welder is provided at the top, and telescopic mechanical arms are symmetrically provided on the outer surfaces of both sides. Adjustable bites are provided at the ends of the telescopic mechanical arms, and pipe clamps are provided on both sides of the adjustable bite length. A lifting unit is provided at the tail end of the automatic welding trolley.

2. The automatic welding device for rigid direct buried pipes according to claim 1 is characterized in that: The control integration controls the front and rear movement, left and right movement, and lifting and hoisting control assembly of the automatic welding device.

3. The automatic welding device for rigid direct buried pipes according to claim 1 is characterized in that: The lifting unit is divided into two parts, which are respectively arranged on both sides of the tail end of the automatic welding trolley, and the lifting units on both sides correspond to the telescopic mechanical arms on both sides.

4. The automatic welding device for rigid direct buried pipes according to claim 1 or 3, characterized in that: The lifting unit comprises a lifting boom, a lifting jib and a hook. The lifting boom is arranged at the tail end of the automatic welding trolley, the lifting jib is arranged on the top of the lifting boom, and the hook is arranged at the end of the lifting jib.

5. The automatic welding device for rigid direct buried pipes according to claim 1 is characterized in that: The automatic welder is arranged between the telescopic mechanical arms on both sides.

6. The automatic welding device for rigid direct buried pipes according to claim 1 is characterized in that: At least two of the pipeline clamps are arranged on one side of the adjustable bite, and the distance between the pipeline clamps is adjustable on the adjustable bite.

7. The automatic welding device for rigid direct buried pipes according to claim 1 or 6, characterized in that: A rotary bearing is arranged inside the pipeline clamp.

8. The automatic welding device for rigid direct buried pipes according to claim 1 is characterized in that: The traveling wheel is a universal wheel with a brake.

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