CN117086522A - Tower section of thick bamboo girth welding preheating device - Google Patents
Tower section of thick bamboo girth welding preheating device Download PDFInfo
- Publication number
- CN117086522A CN117086522A CN202311227962.6A CN202311227962A CN117086522A CN 117086522 A CN117086522 A CN 117086522A CN 202311227962 A CN202311227962 A CN 202311227962A CN 117086522 A CN117086522 A CN 117086522A
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- CN
- China
- Prior art keywords
- belt pulley
- tower
- shaft
- base
- girth welding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 51
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 title claims description 4
- 241001330002 Bambuseae Species 0.000 title claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims description 4
- 239000011425 bamboo Substances 0.000 title claims description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 8
- 238000009826 distribution Methods 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a tower circumferential seam welding preheating device, which belongs to the technical field of tower circumferential seam welding, and comprises a base, wherein two barrel rotating mechanisms are arranged on the upper side of the base and are symmetrically distributed on the base, a tower body is commonly erected on the two barrel rotating mechanisms, and an inner and outer bidirectional preheating mechanism is arranged on one side of the barrel rotating mechanisms close to each barrel rotating mechanism.
Description
Technical Field
The invention mainly relates to the technical field of tower welding, in particular to a tower girth welding preheating device.
Background
The wind power tower is a tower pole of wind power generation, mainly plays a supporting role in a wind power generator set, absorbs the vibration of the set at the same time, and generally has the following production process flow: the method comprises the steps of blanking by a numerical control cutting machine, chamfering a thick plate, spot welding, positioning, welding inner and outer longitudinal joints after plate bending by a plate bending machine is needed, carrying out roundness inspection, carrying out secondary roundness comparison if a problem exists, carrying out assembly-to-point welding on a roller frame by a hydraulic assembly after welding a single-section cylinder, carrying out tolerance inspection such as inner and outer circumferential joints, straightness and the like, carrying out nondestructive inspection and flatness inspection on a welding line after welding a flange, carrying out sand blasting and paint spraying treatment, and carrying out transportation to an installation site after finishing internal part installation and finished product inspection.
The method is characterized in that the method is used for preheating before girth welding of the tower, hydrogen in the welding line metal is easy to escape, hydrogen induced cracks are avoided, meanwhile, the quenching degree of the welding line and a heat affected zone is reduced, the cracking resistance of a welding joint is improved, two modes are generally adopted at present, the first mode is heating by a resistance heating sheet, but the resistance heating sheet has higher requirements on size, the installation and disassembly processes are troublesome, the second mode is flame heating, in actual production, the diameter of the tower is different, a gasoline flame gun is adopted for preheating, but because the diameter of the tower is larger, workers are required to spray one circle of flame gun by hand to preheat, the preheating is quite inconvenient, and in the spraying process, the moving speed of the flame gun is not constant by hand, the condition that the tower is heated unevenly is easy to cause, different parts generate temperature differences, and cracks are easy to generate in welding.
Disclosure of Invention
The technical scheme of the invention aims at the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and particularly mainly provides a tower circumferential seam welding preheating device which is used for solving the technical problem that the prior equipment is adopted to preheat a tower, so that uneven heating of a welding position of the tower is easily caused, temperature difference is generated, and cracks appear during welding.
The technical scheme adopted for solving the technical problems is as follows:
the tower cylinder circumferential seam welding preheating device comprises a base, wherein two cylinder rotating mechanisms are arranged on the upper side of the base, the two cylinder rotating mechanisms are symmetrically distributed on the base, a tower cylinder body is commonly erected on the two cylinder rotating mechanisms, and an inner and outer bidirectional preheating mechanism is arranged on one side, close to each cylinder rotating mechanism;
the inner-outer bidirectional preheating mechanism comprises a mounting plate, the bottom of the mounting plate is detachably connected with a base, a rotating shaft is rotatably connected to the mounting plate, a rotating block is arranged on the rotating shaft, a first flame thrower is arranged on the upper side of the rotating block, a support frame is arranged on one side of the first flame thrower and is close to the upper side of the rotating block, a screw rod and a nut seat on the screw rod are rotatably connected to the support frame, a moving plate is arranged on the outer wall of the nut seat, a second flame thrower is arranged on the lower side of the moving plate, and the output ends of the second flame thrower and the first flame thrower are corresponding.
Preferably, each round hole position of pivot one end all swing joint has the inserted bar, and every the equal joint of inserted bar lower extreme has the locating hole, the locating hole sets up on the base.
Preferably, an adjusting knob is arranged at the upper end of each screw rod.
Preferably, the cylinder rotating mechanism comprises an outer shell, wherein the outer shell comprises a first side plate, a second side plate and an intermediate connecting part, and welding is performed among the first side plate, the second side plate and the intermediate connecting part.
Preferably, the first supporting shaft and the second supporting shaft are rotatably connected with the middle shaft and two sides of the middle shaft in the outer shell, a first belt pulley and a third belt pulley are arranged on the middle shaft, the first belt pulley is connected with the second belt pulley through a belt, the second belt pulley is arranged on the first supporting shaft, the third belt pulley is connected with a fourth belt pulley through a belt, and the fourth belt pulley is arranged on the second supporting shaft.
Preferably, both ends of the first support shaft and the second support shaft are provided with steering rollers, and the steering rollers are located at corresponding opening positions of the outer shell.
Preferably, a motor is arranged at one side close to each outer shell, the motor is detachably connected with the base, and the output end of the motor is connected with one end of the corresponding intermediate shaft
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through the arrangement of the outer shell, the intermediate shaft, the first supporting shaft, the second supporting shaft, the steering roller, the first belt pulley, the second belt pulley, the third belt pulley and the fourth belt pulley, the uniform circumferential rotation of the tower body is realized after the tower is hung on the base, the requirement that ignition is only carried out at a fixed position is met, the welding position can be preheated around a circle, the ignition preheating area is better controlled, different areas of the welding position can be heated uniformly, the condition that temperature difference occurs in different areas of the welding position is effectively avoided, the welding stress, the welding strain rate and the structural restraint degree are reduced, and welding cracks are avoided.
According to the invention, through the mutual matching among the rotating block, the first flame thrower, the supporting frame, the screw rod, the nut seat, the moving plate and the second flame thrower, simultaneous ignition preheating of the inner side and the outer side of the circumferential welding position of the tower barrel is realized, the condition of temperature difference caused by uneven temperature of the inner side and the outer side of the welding position is effectively avoided, hydrogen on the inner side and the outer side of weld joint metal is facilitated to escape, hydrogen induced cracks are prevented from being generated, meanwhile, the hardening degree of the weld joint and a heat affected zone is reduced, the cracking resistance of the welding position is further improved, the height of the second flame thrower can be regulated and controlled under the action of the regulating knob, so that the tower barrel with different specification thickness can be adapted, the outer flame of the second flame thrower can better contact with the inner wall of the tower barrel, the flame control time is realized, and the mutual matching among the mounting plate, the rotating shaft, the inserting rod and the positioning hole can be rotated to the horizontal position integrally after the preheating treatment, and the welding of the two ends of the tower barrel can not be blocked.
The invention will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the distribution of the barrel rotating mechanism and the internal and external bi-directional preheating mechanism of the present invention;
FIG. 3 is an exploded view of the barrel rotating mechanism of the present invention;
fig. 4 is a schematic diagram of the internal and external two-way preheating mechanism of the present invention.
Description of the drawings: 1. a base; 11. positioning holes; 2. a cylinder rotation mechanism; 21. an outer housing; 211. a first side plate; 212. a second side plate; 213. an intermediate connection portion; 22. an intermediate shaft; 23. a first support shaft; 24. a second support shaft; 25. a steering roller; 26. a first pulley; 261. a second pulley; 27. a third pulley; 271. a fourth pulley; 3. an inner and outer two-way preheating mechanism; 31. mounting a plate; 32. a rotating shaft; 321. a rod; 33. a rotating block; 34. a first torches; 35. a support frame; 36. a screw rod; 37. a nut seat; 371. a moving plate; 38. a second torches; 39. an adjustment knob; 4. a tower body; 5. and a motor.
Detailed Description
In order that the invention may be more fully understood, a more particular description of the invention will be rendered by reference to the appended drawings, in which several embodiments of the invention are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly connected to one of ordinary skill in the art to which this invention belongs, and the knowledge of terms used in the description of this invention herein for the purpose of describing particular embodiments is not intended to limit the invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, a tower circumferential seam welding preheating device includes a base 1, two barrel rotating mechanisms 2 are disposed on the upper side of the base 1, the two barrel rotating mechanisms 2 are symmetrically distributed on the base 1, a tower body 4 is mounted on the two barrel rotating mechanisms 2 in a common mode, and an inner and outer bidirectional preheating mechanism 3 is disposed on one side, close to each barrel rotating mechanism 2; the inside and outside bidirectional preheating mechanism 3 includes mounting plate 31, be detachable connection between mounting plate 31 bottom and the base 1, it is connected with pivot 32 to rotate on the mounting plate 31, be provided with rotating block 33 in the pivot 32, the upside of rotating block 33 is provided with first flame thrower 34, is close to first flame thrower 34 one side is provided with support frame 35, rotate on the support frame 35 and be connected with screw rod 36 and the nut seat 37 on the screw rod 36, the outer wall of nut seat 37 is provided with movable plate 371, the movable plate 371 downside is provided with second flame thrower 38, and second flame thrower 38 is corresponding with the output of first flame thrower 34.
The structure realizes the preheating treatment of the welding position before the circumferential welding of the tower through the mutual matching between the cylinder rotating mechanism 2 and the inner and outer bidirectional preheating mechanisms 3, so that the inner and outer sides of the welding position can be heated uniformly in a short time, the condition of temperature difference is effectively avoided, simultaneously, the welding stress and the welding strain rate are reduced, welding cracks are avoided, the escape of hydrogen in weld metal is facilitated, hydrogen induced cracks are prevented, meanwhile, the quenching degree of the weld and a heat affected zone is reduced, and the crack resistance of the welding position is improved.
The specific operation is that firstly, the tower body 4 is placed on the barrel rotating mechanism 2 through a crane, then the inserted link 321 is held, the rotating block 33 is rotated through the rotating shaft 32, so that the two torches are in vertical positions, then the lower end of the inserted link 321 is clamped in the positioning hole 11, the rotating amplitude of the rotating block 33 is positioned, at the moment, the output end of the first torches 34 is aligned with the outer edge of the welding position of the tower body 4, the output end of the second torches 38 is aligned with the inner edge of the welding position of the tower body 4, then ventilation and ignition are carried out, the motor 5 is simultaneously turned on, the intermediate shaft 22 rotates, then the intermediate shaft 22 synchronously drives the first supporting shaft 23 and the second supporting shaft 24 to rotate in the same direction through the first belt pulley 26, the second belt pulley 261, the third belt pulley 27, the fourth belt pulley 271 and the belt, and then the tower body 4 can be driven to rotate, and preheating treatment is carried out.
In the second embodiment, please refer to fig. 2 and 3, the barrel rotating mechanism 2 includes an outer housing 21, the outer housing 21 includes a first side plate 211, a second side plate 212 and an intermediate connection portion 213, welding is performed between the first side plate 211, the second side plate 212 and the intermediate connection portion 213, a first supporting shaft 23 and a second supporting shaft 24 are rotatably connected to two sides of the intermediate shaft 22 and the intermediate shaft 22 in the outer housing 21, a first belt pulley 26 and a third belt pulley 27 are disposed on the intermediate shaft 22, the first belt pulley 26 is connected with a second belt pulley 261 through a belt, the second belt pulley 261 is disposed on the first supporting shaft 23, the third belt pulley 27 is connected with a fourth belt pulley 271 through a belt, the fourth belt pulley 271 is disposed on the second supporting shaft 24, synchronous driving of the two supporting shafts is achieved through mutual cooperation among the first belt pulley 26, the second belt pulley 261, the third belt pulley 27, the fourth belt pulley 271 and the belt, two ends of the first supporting shaft 23 and the second supporting shaft 24 are respectively provided with a motor roller 25, the motor 25 is disposed at the opposite sides of the outer housing 21 and is connected with a corresponding driving shaft 5, and the outer housing 5 is disposed at the corresponding position of the outer housing 5, and the driving shaft is connected with the outer housing 5 through the driving shaft 5, and the driving shaft is detached, and the driving shaft is disposed at the corresponding position 5.
In the third embodiment, please refer to fig. 2 and 4, the round hole at one end of each rotating shaft 32 is movably connected with an insert rod 321, and the lower end of each insert rod 321 is clamped with a positioning hole 11, the positioning holes 11 are arranged on the base 1, and after the flame thrower is rotated to the vertical direction, positioning is performed by mutually matching the insert rods 321 with the positioning holes 11, an adjusting knob 39 is arranged at the upper end of each screw rod 36, and the provision of a force point is realized by the adjusting knob 39, so that the screw rod 36 is convenient to rotate.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the embodiments described above, but is intended to be within the scope of the invention, as long as such insubstantial modifications are made by the method concepts and technical solutions of the invention, or the concepts and technical solutions of the invention are applied directly to other occasions without any modifications.
Claims (7)
1. The utility model provides a tower section of thick bamboo girth welding preheating device, includes base (1), its characterized in that, base (1) upside is provided with two barrel slewing mechanism (2), and two barrel slewing mechanism (2) are symmetrical distribution on base (1), two on barrel slewing mechanism (2) erect tower section of thick bamboo body (4) jointly, be close to every barrel slewing mechanism (2) one side all is provided with inside and outside bidirectional preheating mechanism (3);
the inner-outer bidirectional preheating mechanism (3) comprises a mounting plate (31), the bottom of the mounting plate (31) is detachably connected with a base (1), a rotating shaft (32) is rotatably connected to the mounting plate (31), a rotating block (33) is arranged on the rotating shaft (32), a first flame thrower (34) is arranged on the upper side of the rotating block (33), a supporting frame (35) is arranged on one side of the rotating block (33), a screw rod (36) and a nut seat (37) on the screw rod (36) are rotatably connected to the supporting frame (35), a movable plate (371) is arranged on the outer wall of the nut seat (37), a second flame thrower (38) is arranged on the lower side of the movable plate (371), and the second flame thrower (38) corresponds to the output end of the first flame thrower (34).
2. The tower girth welding preheating device according to claim 1, wherein a plug rod (321) is movably connected to a round hole at one end of each rotating shaft (32), a positioning hole (11) is clamped at the lower end of each plug rod (321), and the positioning hole (11) is arranged on the base (1).
3. A tower girth welding preheating apparatus according to claim 1, wherein an adjusting knob (39) is provided at the upper end of each screw (36).
4. The tower girth welding preheating apparatus according to claim 1, wherein said drum rotating mechanism (2) comprises an outer case (21), said outer case (21) comprises a first side plate (211), a second side plate (212) and an intermediate connecting portion (213), and welding is performed between said first side plate (211), said second side plate (212) and said intermediate connecting portion (213).
5. The tower girth welding preheating device according to claim 4, wherein the outer housing (21) is rotatably connected with an intermediate shaft (22) and a first supporting shaft (23) and a second supporting shaft (24) on both sides of the intermediate shaft (22), the intermediate shaft (22) is provided with a first belt pulley (26) and a third belt pulley (27), the first belt pulley (26) is connected with a second belt pulley (261) through a belt, the second belt pulley (261) is arranged on the first supporting shaft (23), the third belt pulley (27) is connected with a fourth belt pulley (271) through a belt, and the fourth belt pulley (271) is arranged on the second supporting shaft (24).
6. The tower girth welding preheating device according to claim 5, wherein both ends of the first supporting shaft (23) and the second supporting shaft (24) are provided with steering rollers (25), and the steering rollers (25) are located at opening positions corresponding to the outer shell (21).
7. The tower girth welding preheating device according to claim 5, wherein a motor (5) is provided at a side close to each outer housing (21), the motor (5) is detachably connected with the base (1), and an output end of the motor (5) is connected with one end of a corresponding intermediate shaft (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311227962.6A CN117086522A (en) | 2023-09-22 | 2023-09-22 | Tower section of thick bamboo girth welding preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311227962.6A CN117086522A (en) | 2023-09-22 | 2023-09-22 | Tower section of thick bamboo girth welding preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117086522A true CN117086522A (en) | 2023-11-21 |
Family
ID=88777106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311227962.6A Pending CN117086522A (en) | 2023-09-22 | 2023-09-22 | Tower section of thick bamboo girth welding preheating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117086522A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101041709B1 (en) * | 2010-04-26 | 2011-06-14 | 주식회사 엠티에스 | A soldering apparatus for variety tube and variety join tube |
| CN111992973A (en) * | 2020-08-25 | 2020-11-27 | 杭州窜层科技有限公司 | Pipe fitting butt joint anchor clamps based on automated machine |
| CN216802208U (en) * | 2021-12-24 | 2022-06-24 | 浙江海重重工有限公司 | Heating device for thick plate welding preheating and post heating |
| CN114769949A (en) * | 2022-03-28 | 2022-07-22 | 江苏久日机床科技有限公司 | Tubulation is with interior welding machine convenient to observe intraductal welding condition |
| CN115319346A (en) * | 2022-08-30 | 2022-11-11 | 阜阳安固锅炉压力容器制造有限公司 | Preheating method of circumferential weld |
| CN115890127A (en) * | 2022-12-15 | 2023-04-04 | 黄结英 | Industrialized rotary nitrogen protection welding device |
-
2023
- 2023-09-22 CN CN202311227962.6A patent/CN117086522A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101041709B1 (en) * | 2010-04-26 | 2011-06-14 | 주식회사 엠티에스 | A soldering apparatus for variety tube and variety join tube |
| CN111992973A (en) * | 2020-08-25 | 2020-11-27 | 杭州窜层科技有限公司 | Pipe fitting butt joint anchor clamps based on automated machine |
| CN216802208U (en) * | 2021-12-24 | 2022-06-24 | 浙江海重重工有限公司 | Heating device for thick plate welding preheating and post heating |
| CN114769949A (en) * | 2022-03-28 | 2022-07-22 | 江苏久日机床科技有限公司 | Tubulation is with interior welding machine convenient to observe intraductal welding condition |
| CN115319346A (en) * | 2022-08-30 | 2022-11-11 | 阜阳安固锅炉压力容器制造有限公司 | Preheating method of circumferential weld |
| CN115890127A (en) * | 2022-12-15 | 2023-04-04 | 黄结英 | Industrialized rotary nitrogen protection welding device |
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