CN110181203B - Preheating equipment for welding steel structure - Google Patents
Preheating equipment for welding steel structure Download PDFInfo
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- CN110181203B CN110181203B CN201910384329.5A CN201910384329A CN110181203B CN 110181203 B CN110181203 B CN 110181203B CN 201910384329 A CN201910384329 A CN 201910384329A CN 110181203 B CN110181203 B CN 110181203B
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- preheating
- welding
- cantilever beam
- steel structure
- telescopic cantilever
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- 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
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- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
Abstract
The invention relates to welding preheating equipment, in particular to preheating equipment for welding a steel structure, which comprises a track device, a moving platform, a telescopic cantilever beam, a counterweight system, a module mounting plate, a preheating module, a welding machine module and an air supply pipe, wherein the moving platform is slidably mounted on the track device, the upper part of the moving platform is provided with a lifting device, the upper end of the lifting device is fixedly connected with the telescopic cantilever beam, the rear end of the telescopic cantilever beam is provided with the counterweight system, the telescopic cantilever beam is of a sleeve type telescopic cantilever structure, the middle part of the telescopic cantilever beam is provided with a middle supporting wheel carrier, and the module mounting plate is provided with an elevation angle rotation adjusting device. According to the invention, the continuous and uniform welding of the revolving body section steel structure is realized through the preheating welding supporting structure welded in the cantilever type annular motion manner, the preheating efficiency is high, and the reliability is strong.
Description
Technical Field
The invention relates to welding preheating equipment, in particular to preheating equipment for welding a steel structure.
Background
The steel structure is a common industrial and building component, and in order to meet the structural bearing requirements of the steel structure, the steel structure generally has high requirements on the strength of the steel structure, and the steel structure is generally formed by welding a large number of steel plates or steel pipes, so that the steel structure is required to ensure the welding quality which is high enough in the welding process, and the defects of cracks and the like are easily generated in the welding process, so that the strength of the steel structure can be greatly influenced. Generally, in the construction process of a steel structure, steel needs to be preheated to a certain degree, so that defects in the welding implementation process are avoided as much as possible, heat loss is easily caused by the common respective preheating and welding modes, and the operation is complex and dangerous. The preheating equipment for welding the steel structure, which can realize uniform large-area preheating of the annular continuous welding line, is urgently needed.
The Chinese invention patent (CN108705187A) discloses a preheating welding device, which comprises an arc welding machine and a movable platform, wherein the arc welding machine is arranged on the movable platform, the arc welding machine is connected with the movable platform through a connecting arm, the connecting arm is also connected with a multi-head heating torch, the arc welding machine and the multi-head heating torch are arranged in the same axial direction, and the multi-head heating torch is connected with a gas connecting pipe. Therefore, the arc welding machine and the multi-head heating torch are arranged in the same axial direction, so that the high-efficiency, safe and convenient-to-manage welding preheating device has the advantages of low investment and synchronous construction with welding, meets the welding preheating requirement of high-strength steel, meets the welding process and welding quality requirements, and cannot weld annular workpieces.
The invention discloses a novel steel welding preheating device with a heat preservation cover, which comprises the heat preservation cover, wherein a through hole is formed in the top of the heat preservation cover, the heat preservation cover is sleeved in the through hole, a first gas pipe is movably sleeved in the heat preservation cover, one end of the first gas pipe penetrates through the heat preservation cover and extends into the heat preservation cover, a four-way joint is fixedly sleeved on the first gas pipe, a plurality of second gas pipes are fixedly sleeved on the output end of the four-way joint, one ends, far away from the four-way joint, of the second gas pipes are respectively and fixedly connected with a flame gun, the outer wall of the bottom of the first heat preservation cover is movably sleeved with the heat preservation pipe, first threaded holes which are symmetrically distributed are formed in the outer wall of the top of the heat preservation pipe, and first bolts are in threaded connection. Therefore, the novel steel welding preheating equipment with the heat preservation cover can preheat steel materials with different preheating areas, can preserve heat of the preheated steel materials, guarantees welding quality and welding speed, and cannot guarantee that local parts of workpieces are uniformly heated.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides preheating equipment for welding a steel structure.
The invention aims to solve the technical problem by adopting the following technical scheme, and discloses preheating equipment for welding a steel structure, which comprises a rail device, a moving platform, a telescopic cantilever beam, a counterweight system, a module mounting plate, a preheating module, a welding machine module and an air supply pipe, the moving platform is arranged on the track device in a sliding way, the upper part of the moving platform is provided with a hoisting and lifting device, the upper end of the hoisting and lifting device is fixedly connected with a telescopic cantilever beam, the rear end of the telescopic cantilever beam is provided with a counterweight system, the telescopic cantilever beam is of a sleeve type telescopic cantilever structure, a middle supporting wheel carrier is arranged in the middle of the telescopic cantilever beam, an elevation angle rotation adjusting device is arranged on the module mounting plate, the front end of the telescopic cantilever beam is connected with the module mounting plate through the elevation angle rotation adjusting device, and a preheating module and a welding module are respectively arranged at the left end and the right end of the module mounting plate; preheating module includes preheating section of thick bamboo, coupling, divides the gas joint, heating torch pipe, high temperature conducting strip and the attached device of elasticity, preheating section of thick bamboo is lower extreme open-ended semi-closed form, preheating section of thick bamboo's inside wall is equipped with the insulating layer, the coupling embedding is installed in preheating section of thick bamboo's top centre bore, the coupling outer end with the air supply pipe is connected, coupling inner with divide the upper portion switch-on of gas joint, the lower extreme that divides the gas joint is connected with a plurality of heating torch pipes, be equipped with the pneumatic valve on the heating torch pipe, high temperature conducting strip fixed mounting is in preheating section of thick bamboo lower extreme port department, the lower extreme mouth of pipe of heating torch pipe is relative with the high temperature conducting strip, preheating section of thick bamboo lower extreme border is equipped with the attached device of a plurality.
Further, a motor rail wheel driving system is arranged on the mobile platform.
Further, the counterweight system comprises a plurality of counterweight bodies, and the counterweight bodies are stacked and fixed on the counterweight system platform.
Further, the rail device has a circular track guide structure.
Further, the middle supporting wheel frame comprises a manual fixing device and a bottom wheel, the manual fixing device is U-shaped, and the manual fixing device comprises a thread pressing mechanism.
Furthermore, the elevation angle rotation adjusting device comprises a torque motor and a transmission mechanism, and the torque motor can drive the module mounting plate to rotate relative to the telescopic cantilever beam through the transmission mechanism.
Further, an infrared temperature sensor is arranged at the top of the inner side of the preheating cylinder.
Further, an exhaust window is formed in the side wall of the preheating cylinder, and an exhaust fan is installed on the side wall of the preheating cylinder through the exhaust window.
Furthermore, the elastic attaching device comprises an elastic element, a roller and a heat insulation guard plate, wherein the roller is connected to the lower end edge of the preheating cylinder through the elastic element.
Further, the heat insulation protective plate is vertically installed on the inner side of the wheel carrier of the roller.
Compared with the prior art, the invention has the following advantages:
(1) according to the invention, the continuous and uniform welding of the revolving body section steel structure is realized through the preheating welding supporting structure welded in the cantilever type annular motion manner, the preheating efficiency is high, and the reliability is strong;
(2) the cylindrical semi-closed preheating structure adopted by the invention concentrates and uniformly distributes heat to the surface of the workpiece, avoids the phenomenon of local non-uniformity of the preheated surface, and is particularly suitable for welding application occasions with larger welding surfaces;
(3) the support system adopted by the invention comprises the counterweight system and the middle support wheel carrier, can easily meet the requirements of various complex welding stations, is stable in movement support, ensures smooth and uniform welding tracks and improves the quality of welding seams.
Drawings
FIG. 1 is a top view of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at position A;
FIG. 3 is a schematic view of the internal structure of the preheating cylinder 6;
fig. 4 is a schematic structural view of the middle support wheel frame 31;
1-a rail device; 2-moving platform, 21-lifting device; 3-telescopic cantilever beam, 31-middle supporting wheel frame; 4-counterweight system, 41-counterweight body; 5-module mounting plate, 51-elevation angle rotation adjusting device; 6-preheating module, 61-preheating cylinder, 611-heat insulation layer, 612-infrared temperature sensor, 613-exhaust fan, 62-pipe joint, 63-gas distribution joint, 64-heating torch pipe, 65-high temperature heat conducting sheet and 66-elastic attachment device; 7-a welder module; 8-gas supply pipe.
Detailed Description
As shown in figures 1-4, the invention discloses a preheating device for welding a steel structure, which comprises a track device 1, a moving platform 2, a telescopic cantilever beam 3, a counterweight system 4, a module mounting plate 5, a preheating module 6, a welding machine module 7 and an air supply pipe 8, the moving platform 2 is slidably mounted on the track device 1, a lifting device 21 is arranged at the upper part of the moving platform 2, the upper end of the hoisting and lifting device 21 is fixedly connected with a telescopic cantilever beam 3, the rear end of the telescopic cantilever beam 3 is provided with a counterweight system 4, the telescopic cantilever beam 3 is of a sleeve type telescopic cantilever structure, a middle supporting wheel frame 31 is arranged in the middle of the telescopic cantilever beam 3, an elevation angle rotation adjusting device 51 is arranged on the module mounting plate 5, the front end of the telescopic cantilever beam 3 is connected with the module mounting plate 5 through the elevation angle rotation adjusting device 51, and a preheating module 6 and a welding module are respectively arranged at the left end and the right end of the module mounting plate 5; preheating module 6 includes preheating section of thick bamboo 61, coupling 62, divides gas connection 63, heating torch pipe 64, high temperature conducting strip 65 and the attached device 66 of elasticity, preheating section of thick bamboo 61 is the semi-closed form of lower extreme open-ended, preheating section of thick bamboo 61's inside wall is equipped with insulating layer 611, coupling 62 embedding is installed in preheating section of thick bamboo 61's top centre bore, coupling 62 outer end with air supply pipe 8 is connected, coupling 62 inner with divide the upper portion switch-on of gas connection 63, the lower extreme of dividing gas connection 63 is connected with a plurality of heating torch pipes 64, be equipped with the pneumatic valve on the heating torch pipe 64, high temperature conducting strip 65 fixed mounting be in preheating section of thick bamboo 61 lower extreme nozzle department, the lower extreme mouth of pipe 64 is relative with high temperature conducting strip 65, preheating section of thick bamboo 61 lower extreme border is equipped with the attached device 66 of a plurality of elasticity.
And a motor rail wheel driving system is arranged on the moving platform 2. The counterweight system 4 comprises a plurality of counterweight bodies 41, and the counterweight bodies 41 are stacked and fixed on the counterweight system 4 platform. The track device 1 has a circular track guide structure. The middle supporting wheel frame 31 comprises a manual fixing device 311 and a bottom wheel 312, the manual fixing device 311 is U-shaped, and the manual fixing device 311 comprises a thread pressing mechanism. The elevation rotation adjusting device 51 comprises a torque motor and a transmission mechanism, and the torque motor can drive the module mounting plate 5 to rotate relative to the telescopic cantilever beam 3 through the transmission mechanism. The top of the inner side of the preheating cylinder 61 is provided with an infrared temperature sensor 612, and the temperature of the surface of the high-temperature heat conducting fin 65 can be directly monitored through the infrared temperature sensor 612, so that the temperature of the surface of the high-temperature heat conducting fin 65 is not too high, and the service life is prolonged. An exhaust window is formed in the side wall of the preheating cylinder 61, an exhaust fan 613 is mounted on the side wall of the preheating cylinder 61 through the exhaust window, and when the temperature in the preheating cylinder 61 is too high, the purpose of adjusting the temperature can be achieved by discharging hot air. The elastic attaching device 66 comprises an elastic element, a roller and a heat insulation guard plate, wherein the roller is connected with the lower end edge of the preheating cylinder 61 through the elastic element, the heat insulation guard plate is vertically installed on the inner side of a wheel frame of the roller, the heat insulation guard plate is arranged on the inner side of the wheel frame of the roller, so that the elastic element can be completely shielded by the heat insulation guard plate, and the damage of high-temperature radiation to the elastic attaching device 66 is avoided.
In practical application, a steel structural member to be welded is placed in the middle of the rail device 1, the rotation center of the steel structural member to be welded is overlapped with the center of the rail device 1, the moving platform 2 generates driving force under the driving action of the motor rail wheel driving system, so that the telescopic cantilever beam 3 is pushed to do arc motion along with the moving platform 2, the integral weight of the counterweight system 4 is adjusted at the moment, the counterweight system 4 is matched with the front part of the telescopic cantilever beam 3 in mass, the lever balance effect is achieved on integral load, then the elevation angle rotation adjusting system is controlled through the control system, so that the working angle postures of the preheating module 6 and the welding machine module 7 reach the degree meeting the working condition requirements, under the control action of the control system, the heating torch pipe 64 continuously sprays flame, the flame is uniformly sprayed onto the high-temperature heat conducting fins 65, and the high-temperature heat conducting fins 65 with uniform heat transmit the heat to the surface of a, thereby achieving the preheating purpose. In practical production application, the high-temperature heat-conducting fin 65 can be made of a novel graphene material, and of course, those skilled in the art can select other high-temperature-resistant heat-conducting materials on the premise of meeting the requirements of corresponding working conditions.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a steel construction welding is with preheating equipment which characterized in that: the welding machine comprises a track device, a moving platform, a telescopic cantilever beam, a counterweight system, a module mounting plate, a preheating module, a welding machine module and an air supply pipe, wherein the moving platform is slidably mounted on the track device, a hoisting lifting device is arranged on the upper portion of the moving platform, the upper end of the hoisting lifting device is fixedly connected with the telescopic cantilever beam, the counterweight system is arranged at the rear end of the telescopic cantilever beam, the telescopic cantilever beam is of a sleeve type telescopic cantilever structure, a middle supporting wheel carrier is arranged in the middle of the telescopic cantilever beam, an elevation angle rotation adjusting device is arranged on the module mounting plate, the front end of the telescopic cantilever beam is connected with the module mounting plate through the elevation angle rotation adjusting device, and the preheating module and the;
preheating module includes preheating section of thick bamboo, coupling, divides the gas joint, heating torch pipe, high temperature conducting strip and the attached device of elasticity, preheating section of thick bamboo is lower extreme open-ended semi-closed form, preheating section of thick bamboo's inside wall is equipped with the insulating layer, the coupling embedding is installed in preheating section of thick bamboo's top centre bore, the coupling outer end with the air supply pipe is connected, coupling inner with divide the upper portion switch-on of gas joint, the lower extreme that divides the gas joint is connected with a plurality of heating torch pipes, be equipped with the pneumatic valve on the heating torch pipe, high temperature conducting strip fixed mounting is in preheating section of thick bamboo lower extreme port department, the lower extreme mouth of pipe of heating torch pipe is relative with the high temperature conducting strip, preheating section of thick bamboo lower extreme border is equipped with the attached device of a plurality.
2. The preheating equipment for welding the steel structure according to claim 1, wherein: and a motor rail wheel driving system is arranged on the mobile platform.
3. The preheating equipment for welding the steel structure according to claim 1, wherein: the counterweight system comprises a plurality of counterweight bodies, and the counterweight bodies are stacked and fixed on the counterweight system platform.
4. The preheating equipment for welding the steel structure according to claim 1, wherein: the track device is of a circular track guide structure.
5. The preheating equipment for welding the steel structure according to claim 1, wherein: the middle supporting wheel frame comprises a manual fixing device and a bottom wheel, the manual fixing device is U-shaped, and the manual fixing device comprises a thread pressing mechanism.
6. The preheating equipment for welding the steel structure according to claim 1, wherein: the elevation angle rotation adjusting device comprises a torque motor and a transmission mechanism, and the torque motor can drive the module mounting plate to rotate relative to the telescopic cantilever beam through the transmission mechanism.
7. The preheating equipment for welding the steel structure according to claim 1, wherein: and an infrared temperature sensor is arranged at the top of the inner side of the preheating cylinder.
8. The preheating equipment for welding the steel structure according to claim 1, wherein: an exhaust window is formed in the side wall of the preheating cylinder, and an exhaust fan is installed on the side wall of the preheating cylinder through the exhaust window.
9. The preheating equipment for welding the steel structure according to claim 1, wherein: the elastic attaching device comprises an elastic element, a roller and a heat insulation guard plate, wherein the roller is connected to the lower end edge of the preheating cylinder through the elastic element.
10. The preheating equipment for welding the steel structure according to claim 9, wherein: the heat insulation protective plate is vertically arranged on the inner side of the wheel carrier of the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910384329.5A CN110181203B (en) | 2019-05-09 | 2019-05-09 | Preheating equipment for welding steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910384329.5A CN110181203B (en) | 2019-05-09 | 2019-05-09 | Preheating equipment for welding steel structure |
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| Publication Number | Publication Date |
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| CN110181203A CN110181203A (en) | 2019-08-30 |
| CN110181203B true CN110181203B (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910384329.5A Active CN110181203B (en) | 2019-05-09 | 2019-05-09 | Preheating equipment for welding steel structure |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2265297C (en) * | 1998-03-31 | 2002-10-29 | Illinois Tool Works Inc. | Method and apparatus for welding |
| CN100398246C (en) * | 2004-06-30 | 2008-07-02 | 上海锅炉厂有限公司 | Process and device for automatic argon arc welding and narrow gap burial arc welding for circular pipe header seam |
| CN201841370U (en) * | 2010-10-26 | 2011-05-25 | 宁波金凤焊割机械制造有限公司 | T-shaped steel deformation-preventing and pre-heating device in welding |
| CN202344111U (en) * | 2011-10-28 | 2012-07-25 | 安徽伟宏钢结构有限公司 | Preheating welding device for submerged-arc welding |
| CN103045842B (en) * | 2012-12-28 | 2014-07-23 | 安徽伟宏钢结构集团股份有限公司 | Heat treatment equipment for welding seam of numerical control steel weldment |
| CN105397354A (en) * | 2015-12-20 | 2016-03-16 | 安徽伟宏钢结构集团股份有限公司 | Welding preheating method for arc-shaped steel component |
| CN206029074U (en) * | 2016-09-27 | 2017-03-22 | 湖北鸿路钢结构有限公司 | Thick plate welding preheating flame heating device |
| CN107088696A (en) * | 2017-06-27 | 2017-08-25 | 昆明学院 | A kind of roll repair welding built-up welder |
| CN107914103A (en) * | 2017-11-14 | 2018-04-17 | 天津煜腾恒泰钢制品有限公司 | A kind of new steel welding pre-heating device with insulation cover |
| CN207971590U (en) * | 2018-02-13 | 2018-10-16 | 中国有色（沈阳）冶金机械有限公司 | A kind of flame heated type moves rail welding preheating and annealing device |
| CN108705187A (en) * | 2018-07-30 | 2018-10-26 | 上海中远川崎重工钢结构有限公司 | A kind of preheated weld equipment |
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- 2019-05-09 CN CN201910384329.5A patent/CN110181203B/en active Active
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