Welding device for steel jacket steel heat preservation drain joint

By designing a welding device including mounting base, loading stage, push pipe shaft and welded parts, the problem of welding inconvenient and hydrophobic section of steel sleeve steel is solved, and the simultaneous welding of inner and outer joints is realized, which improves the Welding efficiency and convenience.

CN119115418AInactive Publication Date: 2024-12-13CANGZHOU CHANGSHI PIPELINE EQUIPMENT CO LTD
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Patent Information

Application Number
CN202411419498.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2024-12-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the welding process of steel insulation and hydrophobic joints of steel sleeves, the joints on the inner side of the bracket are blocked by the outer pipe, which increases the difficulty of welding, and the arc of the inner and outer pipes makes the sleeve inconvenient, resulting in the problem of welding inconvenient.

Method used

A welding device including a mounting base, a stage, a push pipe shaft, a push pipe frame, a curved support column, a servo motor and a welded part is designed. The outer pipe is limited by the duct ring and the arc-shaped support column is supported by the duct ring. The inner pipe is used to drive the push pipe shaft to perform circular motion, so as to realize the set and welding of the inner pipe and the outer pipe, and the toggle sleeve drives the welding gun to rotate synchronously for easier welding.

Benefits of technology

The welding process of the insulation and hydrophobic section of steel sleeve steel is simplified, the welding efficiency and convenience are improved, the inner and outer joints are simultaneously welded, and the welding difficulty is reduced.

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Abstract

The invention relates to the field of welding facilities, in particular to a steel-in-steel heat preservation drain joint welding device which comprises a mounting base, a carrying table is fixedly mounted in the middle of the upper end of the mounting base, a pipe pushing shaft is rotationally mounted at the position, close to the middle, of the upper end of the carrying table, and a pipe pushing frame is fixedly mounted at the upper end of the pipe pushing shaft. A top seat is embedded in the end of the pipe pushing frame, an arc-shaped supporting column extends from the front end of the top seat, two pipe supporting rings are symmetrically arranged on the side of the carrying table, the arc-shaped supporting column corresponds to the centers of the pipe supporting rings, limiting claws extend from the opposite faces of the two pipe supporting rings, and the two pipe supporting rings are arranged in an annular array. The annular array center line of the two pipe supporting rings and the center line of the pipe pushing shaft are collinear, and a welding piece is installed at the rear end of the pipe pushing frame. According to the welding device, inner side joints can be conveniently welded, sleeving can be conveniently carried out, welding is effectively facilitated, and meanwhile the welding efficiency is improved.
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Description

Technical Field

[0001] The invention relates to the field of welding facilities, in particular to a steel-in-steel thermal insulation drain joint welding device. Background Art

[0002] Steel jacketed steel insulated drain joint is an important component in the steam pipe system, mainly used for heat insulation and drainage of steam pipes. Steel jacketed steel insulated drain joint is usually composed of inner pipe, insulation layer, outer pipe and bracket. The inner pipe is used to transport steam, the insulation layer plays the role of heat insulation, and the outer pipe provides protection and support.

[0003] During the processing of some of the curved steel-in-steel insulation drain joints, it is often necessary to weld the bracket between the inner tube and the outer tube through welding equipment so that the inner tube and the outer tube can be fixed together. However, in the actual welding process, the inner seam of the bracket is blocked by the outer tube, which increases the difficulty of welding the inner seam, resulting in inconvenience in welding. At the same time, due to the certain curvature of the inner tube and the outer tube, it is inconvenient for workers to put the two together for welding when casing, which further causes welding inconvenience. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a steel-in-steel thermal insulation drain joint welding device.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: a steel-in-steel insulated drain joint welding device, including a mounting seat, a carrier is fixedly installed on the middle part of the upper end of the mounting seat, a pipe pushing shaft is rotatably installed on the upper end of the carrier near the middle, a pipe pushing rack is fixedly installed on the upper end of the pipe pushing shaft, a top seat is inlaid on the end of the pipe pushing rack, an arc-shaped supporting column extends from the front end of the top seat, two trustee rings are symmetrically arranged on the side of the carrier, the arc-shaped supporting column corresponds to the center of the trustee ring, limiting claws are extended from opposite sides of the two trustee rings, the two trustee rings are arranged in a circular array, the center lines of the circular arrays of the two trustee rings are collinear with the center line of the pipe pushing shaft, and a welding part is installed at the rear end of the pipe pushing rack.

[0006] Preferably, an extension frame is fixedly installed on the outer surface of the hosting ring, a T-shaped frame is fixedly installed on the end of the extension frame, the end of the T-shaped frame is fixed to the upper edge of the platform, the arc-shaped support column is integrally formed with the top seat, the end edge of the arc-shaped support column is set as a bevel, the push tube shaft passes through the interior of the platform, and a servo motor is installed on the internal top surface of the platform, and the output end of the servo motor is connected to the push tube shaft.

[0007] Preferably, a motor frame is fixedly mounted on the upper end of the servo motor, the end of the motor frame is fixed to the carrier, a small pulley is coaxially embedded in the output end of the servo motor, a large pulley is coaxially embedded in the outer surface of the push tube shaft, and a belt is connected between the large pulley and the small pulley.

[0008] Preferably, the welding part includes a connecting frame fixedly mounted on the rear end of the pipe pushing frame, a bearing column is fixedly mounted on the end of the connecting frame, a toggle sleeve is fitted on the outer surface of the bearing column, a gun lever is slidably mounted on the outer surface of the toggle sleeve, two gun racks are symmetrically extended from the end of the gun lever, the gun racks are arranged in an arc shape, and welding guns are fixedly mounted on the ends of the two gun racks.

[0009] Preferably, the front and rear ends of the toggle sleeve are fitted with limit rings, the limit rings are embedded in the outer surface of the bearing column, the outer surface of the gun lever is fitted with a guide rod sleeve, the end of the guide rod sleeve is fixed to the toggle sleeve, the outer surface of the gun lever is coaxially embedded with a limit cap, and the limit cap is fitted to the front end of the guide rod sleeve.

[0010] Preferably, a return spring is wound around the outside of the gun-shifting rod, a push ring is coaxially inlaid on the outer surface of the gun-shifting rod, one end of the return spring is fixed to the push ring, and the other end of the return spring is fixed to the rear end of the guide rod sleeve, a limiting ridge extends from the outer surface of the gun-shifting rod, the limiting ridge passes through the inner surface of the guide rod sleeve, the limiting ridge is slidably matched with the guide rod sleeve, and the limiting ridge passes through the interior of the return spring.

[0011] Preferably, a toggle column is fixedly installed on the outer surface of the toggle sleeve, and the toggle column is located on the side of the guide rod sleeve. A step cap is fitted inside the toggle column, and the end of the step cap passes through one end of the toggle column. The end of the step cap passes through the outer surface of the toggle sleeve, and the end of the step cap is pressed against the outer surface of the bearing column, and the step cap is slidably matched with the toggle sleeve.

[0012] Preferably, a compression spring is fixedly installed on the side of the step cap, an adjustment cap is fitted on the end of the compression spring, the adjustment cap fits inside the toggle column, an adjustment thread column is passed through and tightened on the other end of the toggle column, and the end of the adjustment thread column is fixed to the middle of the adjustment cap.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Place the outer tube on two trust rings. At this time, the limiting claws on the trust rings fit the end of the outer tube to limit the outer tube. Then insert the end of the inner tube on the arc-shaped support column. At this time, the top seat fits the end of the inner tube. Then push the tube shaft to rotate to drive the inner tube to move in a circle. Insert the inner tube into the middle of the outer tube to complete the casing. Then you can weld it. The process is simple to operate and effectively facilitates welding.

[0014] 2. By toggling the toggle sleeve, the two welding guns on the toggle gun rod can be driven to rotate synchronously in a circle, so that the two welding guns can move along the inner and outer seams of the bracket to weld the inner and outer seams of the bracket at the same time. This can facilitate the welding of the seam on the inner side of the bracket on the one hand, and achieve the purpose of welding two seams at the same time on the other hand, effectively improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a steel jacket steel insulation drain joint welding device of the present invention; Figure 2 A steel jacket steel insulation drain joint welding device according to the present invention Figure 1 A magnified view of middle; Figure 3 It is a schematic diagram of a toggle sleeve of a steel jacket steel insulation drain joint welding device of the present invention; Figure 4 It is a schematic diagram of a platform of a steel jacket steel insulation drain joint welding device of the present invention; Figure 5 It is an internal view of a toggle column of a steel jacket steel insulation drain joint welding device of the present invention; Figure 6 This is a usage view of a steel-in-steel thermal insulation drain joint welding device of the present invention.

[0016] In the figure: 1. mounting base; 2. carrier; 3. servo motor; 4. tube pusher shaft; 5. tube pusher frame; 6. connecting frame; 7. T-shaped frame; 8. extension frame; 9. tube support ring; 10. belt; 11. large pulley; 12. small pulley; 13. toggle sleeve; 14. toggle column; 15. top seat; 16. limit claw; 17. gun rack; 18. welding gun; 19. gun pusher rod; 20. push ring; 21. reset spring; 22. limit ridge; 23. guide rod sleeve; 24. limit cap; 25. adjusting threaded column; 26. limit ring; 27. bearing column; 28. step cap; 29. ​​compression spring; 30. adjustment cap; 31. arc support column; 32. motor frame; 33. outer tube; 34. bracket; 35. inner tube. DETAILED DESCRIPTION

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0018] like Figure 1-Figure 6 The steel-jacketed steel insulation drain joint welding device shown in the figure comprises a mounting seat 1, a carrier 2 is fixedly mounted on the middle part of the upper end of the mounting seat 1, a pipe pushing shaft 4 is rotatably mounted on the upper end of the carrier 2 near the middle part, the carrier 2 serves to support the pipe pushing shaft 4, a pipe pushing frame 5 is fixedly mounted on the upper end of the pipe pushing shaft 4, the pipe pushing shaft 4 serves to drive the pipe pushing frame 5 to rotate, a top seat 15 is inlaid on the end of the pipe pushing frame 5, the top seat 15 can push the inner tube 35 to facilitate pushing the inner tube 35 into the outer tube 33, an arc-shaped supporting column 31 is extended from the front end of the top seat 15, the arc-shaped supporting column 31 serves to support the inner tube 35, the outer surface of the arc-shaped supporting column 31 is adapted to the inner wall of the inner tube 35 to ensure that there is no shaking after insertion, two trustee rings 9 are symmetrically arranged on the side of the carrier 2, the trustee ring 9 It plays the role of supporting and positioning the outer tube 33. The arc-shaped supporting column 31 corresponds to the center of the trust ring 9. The inner surface of the trust ring 9 is adapted to the outer wall of the outer tube 33 to ensure that there will be no shaking after supporting. Limit claws 16 are extended from the opposite sides of the two trust rings 9. The limit claws 16 can prevent the outer tube 33 from shifting from the trust ring 9. The two trust rings 9 are arranged in a circular array. The center lines of the circular arrays of the two trust rings 9 are colinear with the center line of the tube push shaft 4. After the trust ring 9 positions the outer tube 33, the center of the outer tube 33 can be aligned with the tube push shaft 4, so that when the arc-shaped supporting column 31 pushes the inner tube 35 with the tube push shaft 4 as the center, the inner tube 35 can be just inserted into the center position of the outer tube 33 to ensure that the two can be smoothly inserted together. A welding part is installed at the rear end of the tube push rack 5.

[0019] An extension frame 8 is fixedly installed on the outer surface of the hosting ring 9, and a T-shaped frame 7 is fixedly installed on the end of the extension frame 8. The end of the T-shaped frame 7 is fixed to the upper edge of the platform 2. The extension frame 8 and the T-shaped frame 7 play a role in fixing the hosting ring 9. The arc-shaped support column 31 is integrally formed with the top seat 15. The end edge of the arc-shaped support column 31 is set as a bevel, which can facilitate the inner tube 35 to be inserted into the arc-shaped support column 31. The push tube shaft 4 runs through the interior of the platform 2. A servo motor 3 is installed on the internal top surface of the platform 2. The servo motor 3 plays a role in driving the push tube shaft 4 to rotate, and the output end of the servo motor 3 is connected to the push tube shaft 4.

[0020] A motor frame 32 is fixedly installed on the upper end of the servo motor 3, and the end of the motor frame 32 is fixed to the carrier 2. The motor frame 32 plays a role in fixing the servo motor 3. A small pulley 12 is coaxially embedded in the output end of the servo motor 3, and a large pulley 11 is coaxially embedded in the outer surface of the push tube shaft 4. The large pulley 11 and the small pulley 12 play a role of reduction transmission, and a belt 10 is connected between the large pulley 11 and the small pulley 12.

[0021] The welding parts include a connecting frame 6 fixedly installed on the rear end of the pipe pushing frame 5, and a bearing column 27 is fixedly installed on the end of the connecting frame 6. The connecting frame 6 plays a role in fixing the bearing column 27. The outer surface of the bearing column 27 is fitted with a toggle sleeve 13, and the bearing column 27 plays a role in supporting the toggle sleeve 13. The outer surface of the toggle sleeve 13 is slidably installed with a gun-shifting rod 19, and the gun-shifting rod 19 plays a role in driving the welding gun 18 to move outward. Two gun racks 17 are symmetrically extended from the ends of the gun-shifting rod 19, and the gun racks 17 are arranged in an arc shape. The ends of the two gun racks 17 are fixedly installed with welding guns 18, and the gun racks 17 play a role in fixing the welding guns 18. The welding guns 18 are connected to an external welding machine for use. Since welding with the welding gun 18 is a prior art and has been widely used, it is not elaborated in detail here.

[0022] The front and rear ends of the toggle sleeve 13 are both fitted with a limit ring 26, and the limit ring 26 is embedded in the outer surface of the bearing column 27. The limit ring 26 prevents the toggle sleeve 13 from separating from the bearing column 27. The outer surface of the gun-shifting rod 19 is fitted with a guide rod sleeve 23, and the guide rod sleeve 23 guides the gun-shifting rod 19. The end of the guide rod sleeve 23 is fixed to the toggle sleeve 13, and the outer surface of the gun-shifting rod 19 is coaxially inlaid with a limit cap 24. The limit cap 24 can limit the reset position of the welding gun 18 so that the welding gun 18 can correspond to the joint of the bracket 34. When the toggle sleeve 13 is toggled to drive the two welding guns 18 on the gun-shifting rod 19 to rotate synchronously in a circle, the two welding guns 18 can move along the inner and outer seams of the bracket 34 to weld the inner and outer seams of the bracket 34 at the same time, and the limit cap 24 is fitted to the front end of the guide rod sleeve 23.

[0023] A return spring 21 is wound around the outer side of the gun-shifting rod 19, and the return spring 21 can push the welding gun 18 to reset the outwardly moved welding gun 18. A push ring 20 is coaxially inlaid on the outer surface of the gun-shifting rod 19. One end of the return spring 21 is fixed to the push ring 20, and the push ring 20 plays the role of being pushed by the return spring 21. The other end of the return spring 21 is fixed to the rear end of the guide rod sleeve 23. A limiting ridge 22 extends from the outer surface of the gun-shifting rod 19, and the limiting ridge 22 passes through the inner surface of the guide rod sleeve 23. The limiting ridge 22 prevents the gun-shifting rod 19 from rotating. The limiting ridge 22 slides with the guide rod sleeve 23, and the limiting ridge 22 passes through the interior of the return spring 21.

[0024] A toggle column 14 is fixedly installed on the outer surface of the toggle sleeve 13. The toggle column 14 is located on the side of the guide rod sleeve 23. The toggle column 14 serves to facilitate the toggle of the toggle sleeve 13. A stepped cap 28 is fitted inside the toggle column 14. The end of the stepped cap 28 passes through one end of the toggle column 14, and the end of the stepped cap 28 passes through the outer surface of the toggle sleeve 13. The end of the stepped cap 28 is pressed against the outer surface of the bearing column 27. The stepped cap 28 is slidably matched with the toggle sleeve 13. By making the stepped cap 28 pressed against the bearing column 27, the rotation resistance of the toggle sleeve 13 can be increased to avoid the toggle sleeve 13 being too flexible during rotation and affecting welding.

[0025] A compression spring 29 is fixedly installed on the side of the step cap 28, and an adjusting cap 30 is fitted on the end of the compression spring 29. The compression spring 29 plays a role of compressing the step cap 28. The adjusting cap 30 fits into the inside of the toggle column 14, and the adjusting cap 30 plays a role of pressing the compression spring 29. An adjusting threaded column 25 is passed through and tightened on the other end of the toggle column 14. The end of the adjusting threaded column 25 is fixed to the middle part of the adjusting cap 30. By rotating the adjusting threaded column 25, the compression force of the compression spring 29 can be adjusted, thereby adjusting the rotational resistance of the toggle sleeve 13.

[0026] During welding, the outer tube 33 is placed on the two trust rings 9. At this time, the limiting claws 16 on the trust rings 9 are fitted to the ends of the outer tube 33 to limit the outer tube 33. Then, the ends of the inner tube 35 are inserted and placed on the arc-shaped support column 31. At this time, the top seat 15 is fitted to the ends of the inner tube 35. Then, the servo motor 3 works and drives the push tube shaft 4 to rotate through the belt 10, thereby driving the inner tube 35 to perform a circular motion, so that the inner tube 35 is inserted into the middle of the outer tube 33 to complete the casing. At this time, the bracket 34 on the inner tube 35 is fitted to the inner wall of the outer tube 33, and then the toggle sleeve 13 is toggled to drive the two welding guns 18 on the gun lever 19 to rotate synchronously in a circular manner, so that the two welding guns 18 can move along the inner and outer seams of the bracket 34 to weld the inner and outer seams of the bracket 34 at the same time. After the bracket 34 is welded, the toggle sleeve 13 can be rotated in the opposite direction to disengage the bracket 34 from between the two welding guns 18, and then the toggle gun rod 19 can be pulled to move the welding gun 18 outward, and then the toggle sleeve 13 can be toggled to make the welding gun 18 pass through the welded bracket 34 and move to the next bracket 34 to be welded, and then the reset spring 21 restores its deformation to push the welding gun 18 to reset, and then the toggle sleeve 13 is continued to be rotated, and the inner and outer seams of the bracket 34 at this location can be welded, and so on, when the bracket 34 at one end of the outer tube 33 is welded, the two ends of the outer tube 33 can be interchanged, so that the bracket 34 at the other end of the outer tube 33 is welded corresponding to the welding gun 18, so that all the brackets 34 and outer tubes 33 are welded together to complete the assembly of the inner tube 35 and the outer tube 33.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A steel-in-steel thermal insulation drain joint welding device, comprising a mounting seat (1), characterized in that: A carrier (2) is fixedly mounted at the middle of the upper end of the mounting seat (1), a tube push shaft (4) is rotatably mounted at the upper end of the carrier (2) near the middle, a tube push rack (5) is fixedly mounted at the upper end of the tube push shaft (4), a top seat (15) is inlaid at the end of the tube push rack (5), an arc-shaped support column (31) extends from the front end of the top seat (15), two tube support rings (9) are symmetrically arranged on the side of the carrier (2), the arc-shaped support column (31) corresponds to the center of the tube support ring (9), and limiting claws (16) are extended from the opposite sides of the two tube support rings (9), the two tube support rings (9) are arranged in a circular array, and the center lines of the circular array of the two tube support rings (9) are colinear with the center line of the tube push shaft (4), and a welding part is installed at the rear end of the tube push rack (5).

2. A steel-in-steel thermal insulation drain joint welding device according to claim 1, characterized in that: An extension frame (8) is fixedly mounted on the outer surface of the hosting ring (9), a T-shaped frame (7) is fixedly mounted on the end of the extension frame (8), the end of the T-shaped frame (7) is fixed to the upper edge of the platform (2), the arc-shaped support column (31) is integrally formed with the top seat (15), the end edge of the arc-shaped support column (31) is arranged in a beveled shape, the push tube shaft (4) passes through the interior of the platform (2), a servo motor (3) is mounted on the internal top surface of the platform (2), and the output end of the servo motor (3) is connected to the push tube shaft (4).

3. A steel-in-steel thermal insulation drain joint welding device according to claim 2, characterized in that: A motor frame (32) is fixedly mounted on the upper end of the servo motor (3), an end of the motor frame (32) is fixed to the carrier (2), a small pulley (12) is coaxially embedded on the output end of the servo motor (3), a large pulley (11) is coaxially embedded on the outer surface of the push tube shaft (4), and a belt (10) is connected between the large pulley (11) and the small pulley (12).

4. A steel-in-steel thermal insulation drain joint welding device according to claim 1, characterized in that: The welding part comprises a connecting frame (6) fixedly mounted on the rear end of the pipe pushing frame (5), a bearing column (27) fixedly mounted on the end of the connecting frame (6), a shifting sleeve (13) being fitted on the outer surface of the bearing column (27), a gun shifting rod (19) being slidably mounted on the outer surface of the shifting sleeve (13), two gun racks (17) extending symmetrically from the end of the gun shifting rod (19), the gun racks (17) being arranged in an arc shape, and welding guns (18) being fixedly mounted on the ends of the two gun racks (17).

5. A steel-in-steel thermal insulation drain joint welding device according to claim 4, characterized in that: The front and rear ends of the shifting sleeve (13) are fitted with a limit ring (26), and the limit ring (26) is embedded in the outer surface of the bearing column (27). The outer surface of the gun shifting rod (19) is fitted with a guide rod sleeve (23), and the end of the guide rod sleeve (23) is fixed to the shifting sleeve (13). The outer surface of the gun shifting rod (19) is coaxially embedded with a limit cap (24), and the limit cap (24) is fitted with the front end of the guide rod sleeve (23).

6. A steel-in-steel thermal insulation drain joint welding device according to claim 5, characterized in that: A return spring (21) is wound around the outer side of the gun-moving rod (19); a push ring (20) is coaxially inlaid on the outer surface of the gun-moving rod (19); one end of the return spring (21) is fixed to the push ring (20); the other end of the return spring (21) is fixed to the rear end of the guide rod sleeve (23); a limiting ridge (22) extends from the outer surface of the gun-moving rod (19); the limiting ridge (22) passes through the inner surface of the guide rod sleeve (23); the limiting ridge (22) and the guide rod sleeve (23) are slidably matched; the limiting ridge (22) passes through the interior of the return spring (21).

7. A steel-in-steel thermal insulation drain joint welding device according to claim 4, characterized in that: A toggle column (14) is fixedly mounted on the outer surface of the toggle sleeve (13), the toggle column (14) is located on the side of the guide rod sleeve (23), a stepped cap (28) is fitted inside the toggle column (14), the end of the stepped cap (28) passes through one end of the toggle column (14), the end of the stepped cap (28) passes through the outer surface of the toggle sleeve (13), the end of the stepped cap (28) is pressed against the outer surface of the bearing column (27), and the stepped cap (28) is slidably matched with the toggle sleeve (13).

8. A steel-in-steel thermal insulation drain joint welding device according to claim 7, characterized in that: A compression spring (29) is fixedly mounted on the side of the stepped cap (28), an adjustment cap (30) is fitted on the end of the compression spring (29), the adjustment cap (30) fits inside the toggle column (14), an adjustment threaded column (25) is screwed through the other end of the toggle column (14), and the end of the adjustment threaded column (25) is fixed to the middle of the adjustment cap (30).