CN114289838A - Steel coil pipe internal welding device and method - Google Patents
Steel coil pipe internal welding device and method Download PDFInfo
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- CN114289838A CN114289838A CN202210217758.5A CN202210217758A CN114289838A CN 114289838 A CN114289838 A CN 114289838A CN 202210217758 A CN202210217758 A CN 202210217758A CN 114289838 A CN114289838 A CN 114289838A
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Abstract
The application discloses device and method for welding in steel coil pipe, the device for welding in steel coil pipe includes: a support (1); the rail (2) is used for penetrating into the steel reel pipe (6) and is arranged on the bracket (1); the traveling mechanism (3) is arranged on the track (2) and is used for moving along the track (2); and the welding machine (4) is arranged on the travelling mechanism (3), and when the travelling mechanism (3) moves along the track (2), the welding machine (4) aligns and welds the abutted seam of the steel reel pipe (6). The utility model provides a coil of strip intraductal welding set can avoid quality and outward appearance to be difficult to guarantee and the problem that the customization inside and outside welding equipment utilization ratio is not high when manual welding. Moreover, the device has simple structure and convenient manufacture and assembly, and is beneficial to reducing the welding cost.
Description
Technical Field
The application belongs to the technical field of bridge engineering construction, and particularly relates to a steel coil pipe internal welding device and method.
Background
With the development of the steel bridge industry in China, the structural form of the steel bridge is changed day by day, and the processing and manufacturing process of the steel bridge needs to be continuously updated and followed. Taking the domestic steel tube arch bridge as an example at present, the main arch steel tube is mostly formed by coiling and welding steel plates in a factory, and the adopted conventional welding method is as follows: and (4) performing manual secondary shielded welding or secondary shielded welding bottoming and submerged arc semi-automatic welding filling cover surface. Because the domestic standards and specifications have strict requirements on the straight seam quality and the appearance of the steel coil pipe, the one-time pass rate of manual welding flaw detection is very low, and the quality and the appearance of a welding seam are difficult to ensure. In order to avoid the problem, the groove of the welding seam is generally designed into an outer single-side groove of the pipe, namely an inner wall liner, and an outer submerged arc automatic welding process of the pipe. However, for thick-wall pipe joints, the filling amount of a single-side groove is large, the welding work amount is large, the range of a heat affected zone is large, the welding deformation is not easy to control, and the performance of a welding seam is unstable. Although steel coil pipe straight seam internal and external welding equipment exists in China, the equipment is too expensive, and the equipment needs to be customized according to the size of the steel coil pipe, so that the utilization rate is not high.
Disclosure of Invention
The embodiment of the application provides a device and a method for welding in a steel coil pipe, which can avoid the problems that the quality and the appearance are difficult to ensure during manual welding and the utilization rate of customized internal and external welding equipment is not high.
According to the first aspect of the embodiment of this application, provide a coil of strip intraductal welding set for the intraductal piece welding of coil of strip, include:
a support;
the rail penetrates through the steel coil pipe, is arranged along the splicing seam direction of the steel coil pipe and is arranged on the bracket;
the traveling mechanism is arranged on the track and used for moving along the track;
the welding machine is arranged on the travelling mechanism, and when the travelling mechanism moves along the track, the welding machine aligns and welds the abutted seams of the steel reel pipes.
In some alternative embodiments, the bracket comprises:
the frame is arranged in the steel coil pipe in a penetrating way;
the upright columns are arranged on the periphery of the bottom of the frame and used for supporting the frame;
the bearing platform is arranged on the side surface of the upright post, and the track is arranged on the bearing platform.
In some optional embodiments, the stent further comprises:
and the platform is arranged on the side surface of the frame and is used as a passageway for operating personnel in the steel coil pipe.
In some optional embodiments, the steel coil pipe inner welding device further comprises a tool frame for installing the welding machine; the tool rack comprises:
the supporting rod is arranged on the travelling mechanism;
the movable rod is arranged on the supporting rod and is in sliding fit with the supporting rod, the welding machine is arranged on the movable rod, and the welding direction of the muzzle of the welding machine is the same as the sliding direction of the movable rod.
In some optional embodiments, the support rod is rotationally matched with the walking mechanism, and the support rod is used for rotating relative to the walking mechanism so as to adjust the muzzle of the welding machine to align with the abutted seam of the steel roller pipe.
In some optional embodiments, the movable rod is provided with a handle for applying a rotational power to the movable rod through the handle.
According to a second aspect of the embodiments of the present application, a method for welding inside a steel coil pipe is provided, where the steel coil pipe internal welding device according to any one of the foregoing device embodiments is installed inside the steel coil pipe, and the steel coil pipe is subjected to internal welding.
In some optional embodiments, the method for welding inside of the steel coil pipe specifically includes:
assembling the bracket for later use;
turning the rolled steel reel pipe to a preset angle of the abutted seam orientation;
penetrating a track into the steel coil pipe along the seam of the steel coil pipe, and fixing the track through a support;
a travelling mechanism is arranged on the track, and a welding machine is arranged on the travelling mechanism;
actuating the running mechanism to move along the track; and
and starting the welding machine to enable the welding machine to follow and weld the abutted seam of the steel roller pipe in the moving process.
In some optional embodiments, the support comprises a frame, an upright and a bearing platform, wherein the frame is arranged in the steel coil pipe in a penetrating manner, the upright is arranged on the periphery of the bottom of the frame and used for supporting the frame, the bearing platform is arranged on the side surface of the upright, and the track is arranged on the bearing platform; the fixing method of the bracket comprises the following steps:
the frame is arranged in the steel coil pipe in a penetrating mode, and the stand column, which is positioned outside the steel coil pipe, on the frame is supported on the ground; and
and welding the stand column positioned in the steel coil pipe on the frame with the inner wall of the steel coil pipe.
In some optional embodiments, the welder is mounted on the travelling mechanism through a tool rack; the tool frame comprises a supporting rod and a movable rod, wherein the supporting rod is arranged on the traveling mechanism and is in running fit with the traveling mechanism, the movable rod is arranged on the supporting rod and is in sliding fit with the supporting rod, and the welding machine is arranged on the movable rod; before welding, the method for welding the inside of the steel coil pipe further comprises the following steps:
sliding the movable rod along the axial direction of the supporting rod to adjust the height of a muzzle of the welding machine; and
and rotating the supporting rod along the radial direction of the supporting rod so as to adjust the distance from the muzzle of the welding machine to the abutted seam.
The technical scheme of the application has the following beneficial technical effects:
the steel coil pipe internal welding device provided by the embodiment of the application is characterized in that the rail is arranged in the steel coil pipe in a penetrating mode along the extension direction of the abutted seams, the walking mechanism and the welding machine loaded by the walking mechanism can be utilized to move along the abutted seams and weld, and therefore the problem that the utilization rate of the internal and external welding equipment is not high in the manual welding process and the appearance is difficult to guarantee and the utilization rate of the internal and external welding equipment is not high in the customization process can be avoided. In addition, the device has simple structure and convenient manufacture and assembly, and is favorable for reducing the welding cost.
Drawings
Fig. 1 is a schematic structural diagram of a steel coil pipe inner welding device in an exemplary embodiment of the present application;
FIG. 2 is a side view of FIG. 1;
in the figure, 1, a bracket; 11. a frame; 12. a column; 13. a bearing platform; 14. a platform; 2. a track; 3. a traveling mechanism; 4. a welding machine; 5. a tool rack; 51. a support bar; 52. a movable rod; 6. and (4) rolling steel pipes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to the accompanying drawings in combination with specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present application. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present application.
It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic structural diagram of a steel coil pipe internal welding device in an exemplary embodiment of the present application, and fig. 2 is a side view of fig. 1, and referring to fig. 1-2, an embodiment of the present application provides a steel coil pipe internal welding device for welding a seam in a steel coil pipe 6, including a support 1, a rail 2, a traveling mechanism 3, and a welding machine 4, where the rail 2 is inserted into the steel coil pipe 6, and the rail 2 is arranged along the seam direction of the steel coil pipe 6 and mounted on the support 1; the traveling mechanism 3 is arranged on the track 2 and used for moving along the track 2; the welding machine 4 is arranged on the travelling mechanism 3, and when the travelling mechanism 3 moves along the track 2, the welding machine 4 aligns and welds the abutted seams of the steel reel pipe 6. In this embodiment, the track 2 of the steel coil pipe internal welding device is arranged in the steel coil pipe 6 along the extending direction of the abutted seam, and the walking mechanism 3 and the welding machine 4 loaded by the walking mechanism can be utilized to move along the abutted seam and weld, so that the problems that the quality and the appearance are difficult to guarantee and the utilization rate of the internal and external welding equipment is not high during manual welding can be avoided. Moreover, the rails 2 are arranged along the joints of the steel coil pipe 6, so that the walking track of the walking mechanism 3 can be basically overlapped with the joints of the steel coil pipe 6, the muzzle position and the angle of the welding machine 4 are kept unchanged in the welding process, and the equipment structure and the control mode are simplified.
In concrete application, this coil of strip intraductal welding set's support 1, track 2 and running gear 3 can be processed the preparation on the scene, can constitute coil of strip intraductal welding set through assembling support 1, track 2, running gear 3 and welding machine 4, and the device simple structure, preparation and equipment are convenient, are favorable to reducing welding cost. In addition, the device can meet the welding requirements of steel coil pipes 6 with different lengths under the condition that the track 2 is long enough.
Optionally, in order to avoid the influence of the gravity of the rail 2 on the shape of the steel coil pipe, the bracket 1 includes a frame 11, a column 12 and a bearing platform 13, wherein the frame 11 is inserted into the steel coil pipe 6; the upright posts 12 are arranged on the periphery of the bottom of the frame 11 and used for supporting the frame 11; bearing platform 13 is located stand 12 side, and track 2 is located on bearing platform 13 to can carry out whole unsettled the erectting to track 2 through support 1, avoid track 2 gravity to produce the influence to coil of strip pipe 6's shape, reduce welding quality. Illustratively, the frame 11 is arranged in the steel roller pipe 6 in a penetrating manner and is located above the abutted seam, and the upright posts 12 and the rails 2 are arranged on two sides of the frame 11. In specific application, the support 1 can be formed by welding square pipes, angle irons and the like on site, and the materials are common in construction sites, so that the support is convenient to process and manufacture and is beneficial to reducing the cost.
Alternatively, the rail 2 may be formed by processing angle steel, square pipe, or i-shaped steel, etc., in order to reduce cost. The track 2 may be a single track or a double track. The running gear 3 can be positioned on the track 2, and can also be hung on the track 2.
Optionally, for convenience of production and assembly, the track 2 and the support 1 may be designed to be assembled, for example, each of the bearing platforms 13 is provided with a plurality of mounting holes, the track 2 is provided with a plurality of corresponding mounting holes, after the track 2 is inserted into the steel roller pipe 6, the plurality of corresponding mounting holes are inserted into the plurality of corresponding mounting holes on the track 2, so as to complete the installation of the track 2, and after the welding operation is completed, the track 2 is detached from the support 1 and taken out or the track 2 is communicated with the support 1 and taken out together. It should be noted that, in other embodiments, the track 2 and the bracket 1 may also be of an integral design that is welded or screwed, and the embodiments of the present application are not limited in particular.
Optionally, in order to guarantee welding quality, the bracket 1 further comprises a platform 14, the platform 14 is arranged on the side surface of the frame 11 and serves as a passageway for an operator to operate in the steel coil pipe 6, the operator can walk on the platform 14 to monitor welding quality during welding, and welding slag can be cleaned after welding operation is finished, so that the situation that the operator directly contacts the steel coil pipe 6 and influences the quality of the steel coil pipe 6 is avoided. In particular, the platform 14 may be provided on the opposite side of the frame 11 to the rail 2, so that interference of the platform 14 with the running gear 3 may be avoided, for example, the platform 14 may be provided on the outer side of the frame 11.
Optionally, the running gear 3 may be processed on site, and the processing scheme may be that a car body is made of a plate material, wheel sets are installed on two sides of the car body, and a motor for driving the wheel sets to operate is installed, and after the motor is started, the running gear 3 can move at a constant speed along the rail 2. Further, in order to improve the convenience of operation, a controller for controlling the opening and closing of the motor can be arranged on the vehicle body of the traveling mechanism 3, and information such as the rotating speed, the working duration and the like of the motor can be preset in the controller, so that the motor can be installed at a preset speed within one working duration to complete the welding of the abutted seam of one steel reel pipe 6; a sensor can be additionally arranged, so that the controller can control the on-off of the motor according to the induction signal of the sensor. In other embodiments, the running gear 3 may also be a commercially available finished product.
Optionally, in order to improve the applicability of the device, the steel coil pipe inner welding device further comprises a tool frame 5 for installing the welding machine 4 and adjusting the welding distance of the welding machine 4. Specifically, the tool rack 5 comprises a support rod 51 and a movable rod 52, wherein the support rod 51 is arranged on the traveling mechanism 3; the movable rod 52 is arranged on the support rod 51 and is in sliding fit with the support rod 51, and the welding machine 4 is arranged on the movable rod 52, and the welding direction of the muzzle of the welding machine is the same as the sliding direction of the movable rod 52. In a specific application, along with the change of the radius of the steel reel pipe 6, the distance from the muzzle of the welding machine 4 to the abutted seam is increased or decreased, and the movable rod 52 moves along the support rod 51, so that the distance from the muzzle of the welding machine 4 to the abutted seam can be increased or decreased, the welding requirement is met, the welding quality is ensured, and the applicability of the device is improved.
Optionally, in order to ensure the convenience of the device and improve the welding efficiency, the support rod 51 is rotationally matched with the traveling mechanism 3, and the support rod 51 is used for rotating relative to the traveling mechanism 3 so as to adjust the muzzle of the welding machine 4 to align with the abutted seam of the steel roller pipe 6. In concrete application, it makes its piece be in preset position or angle to involve upset steel reelpipe 6 usually, however in the operation process, not all piece of steel reelpipe 6 can both keep in same position or angle, for example, the piece of steel reelpipe 6 presets in the below of steel reelpipe 6 when the welding, and the condition to both sides slope can appear in this piece, in order to avoid spending more time in the position of adjustment piece, the muzzle of adjustment welding machine 4 can greatly reduced the operation degree of difficulty, be favorable to improving welding efficiency.
Optionally, to further simplify the structure and control of the device, a handle (not shown) is provided on the movable rod 52. During specific application, the muzzle angle of the welding machine 4 can be manually adjusted, and compared with the design scheme of automatically adjusting the muzzle angle, the driving device, the control device and the control program are not required to be added, so that the structure and the control program of the device can be greatly simplified, the weight of the device is favorably reduced, and the device is convenient to disassemble, assemble and maintain.
Fig. 1 is a schematic structural diagram of an apparatus for welding inside a steel coil pipe in an exemplary embodiment of the present application, and fig. 2 is a side view of fig. 1, and referring to fig. 1-2, an embodiment of the present application further provides a method for welding inside a steel coil pipe, in which the apparatus for welding inside a steel coil pipe in any one of the above-mentioned embodiments is installed inside a steel coil pipe 6, and the steel coil pipe 6 is welded inside. The method adopts the same device, has the same beneficial effects, and is not repeated herein.
Optionally, the method for welding inside of the steel coil pipe specifically includes:
assembling the bracket 1 for later use;
turning the rolled steel reel pipe 6 to a preset angle of the abutted seam orientation;
the rail 2 is arranged in the steel coil pipe 6 along the seam of the steel coil pipe 6 in a penetrating way and is fixed by the bracket 1;
a travelling mechanism 3 is arranged on the track 2, and a welding machine 4 is arranged on the travelling mechanism 3;
the running gear 3 is started to move along the track 2; and
the welder 4 is activated so that it follows and welds the patchwork of the steel coil 6 during the movement.
Wherein, the seam can be vertically downward or other preset angles.
Wherein, the welding machine 4 and the walking mechanism 3 can be started synchronously or sequentially.
Optionally, the support 1 includes a frame 11, an upright 12 and a platform 13, wherein the frame 11 is inserted into the steel roller pipe 6, the upright 12 is disposed around the bottom of the frame 11 and used for supporting the frame 11, the platform 13 is disposed on the side surface of the upright 12, and the rail 2 is disposed on the platform 13; the fixing method of the bracket 1 comprises the following steps:
the frame 11 is arranged in the steel rolling pipe 6 in a penetrating way, and the upright post 12 positioned outside the steel rolling pipe 6 on the frame 11 is supported on the ground; and
the upright post 12 positioned in the steel coil pipe 6 is welded with the inner wall of the steel coil pipe 6, so that the abutted seams of the track 2 and the steel coil pipe 6 are relatively fixed.
The support 1 can be installed in the steel coil pipe 6 prior to the rail 2, or can be installed in the steel coil pipe 6 after the rail 2 is installed, and the welding connection between the upright post 12 and the steel coil pipe 6 is completed after the rail 2 is erected, because the rail 2 is difficult to erect in place at one time, during specific operation, the position of the rail 2 needs to be adjusted, so that the rail 2 can be arranged along the direction of the abutted seams.
Optionally, the welding machine 4 is mounted on the travelling mechanism 3 through a tooling frame 5; the tool rack 5 comprises a supporting rod 51 and a movable rod 52, wherein the supporting rod 51 is arranged on the traveling mechanism 3 and is in running fit with the traveling mechanism 3, the movable rod 52 is arranged on the supporting rod 51 and is in sliding fit with the supporting rod 51, and the welding machine 4 is arranged on the movable rod 52; before welding, the method for welding the inside of the steel coil pipe further comprises the following steps:
sliding the movable rod 52 along the axial direction of the support rod 51 to adjust the muzzle height of the welder 4; and
the support rod 51 is rotated in the radial direction of the support rod 51 to adjust the muzzle-to-patchwork distance of the welding machine 4.
While the embodiments of the present application have been described in connection with the drawings, the present application is not limited to the specific embodiments, which have been presented for purposes of illustration and not of limitation, and it will be appreciated by those skilled in the art that, in light of the present application, many modifications may be made without departing from the spirit and scope of the appended claims.
Claims (10)
1. The utility model provides a coil of strip intraductal welding set for the intraductal piece joint welding of coil of strip (6), its characterized in that includes:
a support (1);
the rail (2) penetrates through the steel reel pipe (6), and the rail (2) is arranged along the splicing direction of the steel reel pipe (6) and is installed on the support (1);
the traveling mechanism (3) is arranged on the track (2) and is used for moving along the track (2);
and the welding machine (4) is arranged on the travelling mechanism (3), and when the travelling mechanism (3) moves along the track (2), the welding machine (4) aligns and welds the abutted seam of the steel reel pipe (6).
2. The steel coil internal welding device according to claim 1, characterized in that said support (1) comprises:
the frame (11) is arranged in the steel roller pipe (6) in a penetrating way;
the upright posts (12) are arranged on the periphery of the bottom of the frame (11) and used for supporting the frame (11);
and the bearing platform (13) is arranged on the side surface of the upright post (12), and the track (2) is arranged on the bearing platform (13).
3. The steel coil internal welding device according to claim 2, characterized in that said support (1) further comprises:
and the platform (14) is arranged on the side surface of the frame (11) and is used as a passageway for an operator to operate in the steel roller pipe (6).
4. The apparatus for the internal welding of steel coils according to claim 1, characterized in that it further comprises a tooling frame (5) for mounting the welding machine (4); the tool rack (5) comprises:
the supporting rod (51) is arranged on the travelling mechanism (3);
the movable rod (52) is arranged on the supporting rod (51) and is in sliding fit with the supporting rod (51), the welding machine (4) is arranged on the movable rod (52), and the welding direction of the muzzle of the welding machine is the same as the sliding direction of the movable rod (52).
5. The steel coil pipe internal welding device according to claim 4, characterized in that the supporting rod (51) is rotatably matched with the traveling mechanism (3), and the supporting rod (51) is used for rotating relative to the traveling mechanism (3) so as to adjust a muzzle of the welding machine (4) to align with the abutted seam of the steel coil pipe (6).
6. The steel coil pipe internal welding device according to claim 5, characterized in that the movable rod (52) is provided with a handle.
7. A method for internally welding a steel coil pipe, characterized in that the steel coil pipe internal welding device according to any one of claims 1 to 6 is installed in a steel coil pipe (6), and the steel coil pipe (6) is internally welded.
8. The method according to claim 7, wherein the steel coil inner welding method specifically comprises:
turning the rolled steel reel pipe (6) to a preset angle of abutted seam orientation;
penetrating a track (2) into the steel roller pipe (6) along the seam of the steel roller pipe (6), and fixing the track through a support (1);
a travelling mechanism (3) is arranged on the track (2), and a welding machine (4) is arranged on the travelling mechanism (3);
-activating the running gear (3) to move along the track (2); and
and starting the welding machine (4) so that the welding machine follows and welds the seam of the steel coiled pipe (6) in the moving process.
9. The method according to claim 8, wherein the support (1) comprises a frame (11), a vertical column (12) and a bearing platform (13), wherein the frame (11) is arranged in the steel roller pipe (6) in a penetrating manner, the vertical column (12) is arranged around the bottom of the frame (11) and used for supporting the frame (11), the bearing platform (13) is arranged on the side surface of the vertical column (12), and the track (2) is arranged on the bearing platform (13); the fixing method of the bracket (1) comprises the following steps:
the frame (11) is arranged in the steel roller pipe (6) in a penetrating way, and the upright posts (12) on the frame (11) and positioned outside the steel roller pipe (6) are supported on the ground; and
and welding the upright posts (12) positioned in the steel roller pipe (6) on the frame (11) with the inner wall of the steel roller pipe (6).
10. Method according to claim 8, characterized in that the welding machine (4) is mounted on the running gear (3) by means of a tool rack (5); the tooling frame (5) comprises a supporting rod (51) and a movable rod (52), wherein the supporting rod (51) is arranged on the traveling mechanism (3) and is in running fit with the traveling mechanism (3), the movable rod (52) is arranged on the supporting rod (51) and is in sliding fit with the supporting rod (51), and the welding machine (4) is arranged on the movable rod (52); before welding, the method for welding the inside of the steel coil pipe further comprises the following steps:
sliding the movable rod (52) along the axial direction of the support rod (51) to adjust the muzzle height of the welding machine (4); and
and rotating the support rod (51) along the radial direction of the support rod (51) so as to adjust the distance from the muzzle of the welding machine (4) to the abutted seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210217758.5A CN114289838A (en) | 2022-03-07 | 2022-03-07 | Steel coil pipe internal welding device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210217758.5A CN114289838A (en) | 2022-03-07 | 2022-03-07 | Steel coil pipe internal welding device and method |
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| Publication Number | Publication Date |
|---|---|
| CN114289838A true CN114289838A (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210217758.5A Pending CN114289838A (en) | 2022-03-07 | 2022-03-07 | Steel coil pipe internal welding device and method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01306074A (en) * | 1988-06-02 | 1989-12-11 | Ajikawa Tekko Kensetsu Kk | Automatic welding equipment for pipe inner surface |
| US20090230120A1 (en) * | 2008-03-14 | 2009-09-17 | Korea Electric Power Corporation | Welding head carrier for use in welding inner surface of tube |
| KR101191711B1 (en) * | 2012-09-19 | 2012-10-16 | 주식회사 스틸플라워 | Complex method of welding in combination of electric resistance welding with submerged arc welding |
| CN103447673A (en) * | 2013-08-30 | 2013-12-18 | 四川蓝星机械有限公司 | Automatic submerged arc welding device for girth welding seams in barrel |
| CN103600157A (en) * | 2013-11-30 | 2014-02-26 | 天津重钢机械装备股份有限公司 | Automatic welding walking device in small-diameter pipeline |
| CN105345221A (en) * | 2015-11-30 | 2016-02-24 | 浙江瑞能通信科技股份有限公司 | Processing method for iron tower barrel |
| CN205996472U (en) * | 2016-09-18 | 2017-03-08 | 珠海南方广立风电设备有限公司 | Longitudinal seam welding frock in a kind of wind power tower single-unit |
| CN213560665U (en) * | 2020-08-05 | 2021-06-29 | 中钢不锈钢管业科技山西有限公司 | Stainless steel pipe longitudinal seam internal welding machine |
-
2022
- 2022-03-07 CN CN202210217758.5A patent/CN114289838A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01306074A (en) * | 1988-06-02 | 1989-12-11 | Ajikawa Tekko Kensetsu Kk | Automatic welding equipment for pipe inner surface |
| US20090230120A1 (en) * | 2008-03-14 | 2009-09-17 | Korea Electric Power Corporation | Welding head carrier for use in welding inner surface of tube |
| KR101191711B1 (en) * | 2012-09-19 | 2012-10-16 | 주식회사 스틸플라워 | Complex method of welding in combination of electric resistance welding with submerged arc welding |
| CN103447673A (en) * | 2013-08-30 | 2013-12-18 | 四川蓝星机械有限公司 | Automatic submerged arc welding device for girth welding seams in barrel |
| CN103600157A (en) * | 2013-11-30 | 2014-02-26 | 天津重钢机械装备股份有限公司 | Automatic welding walking device in small-diameter pipeline |
| CN105345221A (en) * | 2015-11-30 | 2016-02-24 | 浙江瑞能通信科技股份有限公司 | Processing method for iron tower barrel |
| CN205996472U (en) * | 2016-09-18 | 2017-03-08 | 珠海南方广立风电设备有限公司 | Longitudinal seam welding frock in a kind of wind power tower single-unit |
| CN213560665U (en) * | 2020-08-05 | 2021-06-29 | 中钢不锈钢管业科技山西有限公司 | Stainless steel pipe longitudinal seam internal welding machine |
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