CN106041378B - It is a kind of sea frock for spud leg preheated weld device and its prewarming welding method - Google Patents
It is a kind of sea frock for spud leg preheated weld device and its prewarming welding method Download PDFInfo
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- CN106041378B CN106041378B CN201610683726.9A CN201610683726A CN106041378B CN 106041378 B CN106041378 B CN 106041378B CN 201610683726 A CN201610683726 A CN 201610683726A CN 106041378 B CN106041378 B CN 106041378B
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- spud leg
- electromagnetic heater
- base platform
- welding
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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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Induction Heating (AREA)
Abstract
A kind of preheated weld device the invention discloses extra large frock for spud leg, including welding system and base platform, welding system includes the electromagnetic heater for being used to be set in the tubular structure of spud leg periphery, electromagnetic heater circumferentially has induction coil, and the barrel of electromagnetic heater is equipped with open slot and outer wall is equipped with automatic soldering device；Base platform, which is equipped with, to be used to drive electromagnetic heater with respect to the rotating driving device of spud leg and be used to support the guide support structure of electromagnetic heater, and base platform can slide with respect to spud leg.The problem of present invention preheats spud leg using electromagnetic induction heating mode, can heat different shape, the spud leg of diameter, versatile, and the efficiency of heating surface is high, and internal-external temperature difference is not present in spud leg.The present invention is rotated electromagnetic heater and automatic soldering device, more simple and convenient, improves welding efficiency and welding quality.A kind of prewarming welding method the invention also discloses extra large frock for spud leg.
Description
Technical field
The present invention relates to marine engineering equipment manufacturing field, more particularly to a kind of extra large frock is for the preheated weld device of spud leg
And its prewarming welding method.
Background technology
With the increasingly depleted of earth land resource, sight has been turned to the ocean for containing the abundant energy by people, is opened
Send out marine resources has become the extremely urgent important topic of countries in the world.Therefore, for developing the various equipments of marine resources
Come into being.In order to develop offshore wind energy resource, installation vessel is manufactured, dedicated for the installation and maintenance of offshore wind turbine；
In order to develop Marine oil and gas resource, drilling platforms has been manufactured to exploit oil gas.For above two marine engineering equipment, in its system
During making, the preheated weld of spud leg is a key technical problem.
Since spud leg appearance and size, weight are all very big, big inconvenience is brought to welding operation, is surpassed used in spud leg
High strength steel, carbon equivalent is high, and thickness is big, and the tendency of hardenability and cold cracking sensitivity of Seam and heat effected zone are larger, and thickness is got over
Greatly, cooling velocity is faster, and heat affected area is also easy to produce hardened structure, is also easy to produce crackle.Therefore, spud leg must be carried out before welding
Preheating, so as to reduce cooling velocity, reduces stress, prevents the generation of crackle.
Chinese patent (CN102699589A) provides a kind of wind turbine installation vessel circular pile leg preheated weld device and its pre-
Thermal weld method.Preheating device mainly includes two moveable semi-circular brackets, and two semi-circular brackets are staggered relatively, combination
Into the stent for preheating spud leg outer surface, outer ceramic heating flake is installed on the inside of each semi-circular bracket, two outer ceramics add
It is equipped among backing and is used to be installed on the interior ceramic heating flake on the inside of spud leg, the stent front portion for preheating spud leg outer surface is equipped with
For driving the tumbler of spud leg.Pre-heating mean mainly includes the position according to spud leg weld seam, closes up two semi-circular brackets,
So that two semi-circular brackets are arranged symmetrically in weld seam both sides, and two outer ceramic heating flakes are attached on spud leg outer surface.Then
The preheating temperature of two outer ceramic heating flakes and interior heating plate is controlled by temperature-controlling cabinet, and the preheating temperature of welding is controlled in institute
It is required that temperature within, and in order to ensure that interlayer temperature is maintained on preheating temperature by pre- heat effect, but not higher than welding
Maximum temperature.After uniform preheating, by the driving stake of the friction pulley, reduction box, motor and the chassis composition that are arranged symmetrically
The tumbler of leg, two friction pulleys are rotated with identical speed driving spud leg, implement continuous weld job.
Although such scheme, so that preheated weld process is more convenient, quick, improves welding compared with current technology
Efficiency and welding quality, but there is also following defect for such scheme：
1) device is only applicable to the preheated weld of the circular pile leg of a certain special diameter, for other shapes spud leg then
It is inapplicable, for the spud leg of different-diameter, device is re-designed again.Therefore, the application of the device has very big office
It is sex-limited.
2) preheating device using surface heat transfer mode, although being heated to spud leg surfaces externally and internally,
It is due to that spud leg steel plate is thicker, steel plate internal temperature is not easy to measure, and therefore, heating time is difficult to hold, if heating time is not
Foot, can cause surface of steel plate temperature to reach requirement, and the situation that internal temperature is still relatively low, influence pre- thermal mass and welding matter
Amount, if heating time is too long, and waste of energy.
3) weld seam of this method is brought very big on the top of spud leg, it is necessary to welded to apical position to operation
Inconvenience, there is some potential safety problems.
In addition, in the prior art rotating spud leg, the quality of every section of spud leg is very big, and rotation inconvenience, has particularly been welded
When spud leg has many sections, quality bigger, causes more to be not easy to rotate.At the same time, when spud leg rotates, welded before
Commissure may just not acted on firmly also be subject to torsional moment, so that producing stress and crackle inside spud leg, influence to weld
Quality.
Therefore, how the preheated weld dress of pre-heat effect and welding efficiency a kind of versatile and that can improve spud leg is provided
Put, be the current technical issues that need to address of those skilled in the art.
The content of the invention
In view of this, in order to overcome the above-mentioned shortcoming of the prior art, it is an object of the invention to provide a kind of extra large work
The preheated weld device of spud leg is equipped, which can further improve pre-heat effect and welding quality and work
Efficiency, and the spud leg of different shape and a certain range interior diameter can be applicable in.It is another object of the present invention to provide one kind
Prewarming welding method.
To achieve these goals, the present invention provides following technical solution：
It is a kind of sea frock for spud leg preheated weld device, including：
Welding system, includes the electromagnetic heater of the tubular structure for being set in spud leg periphery, the electromagnetic heating
Device circumferentially has induction coil, and the barrel of the electromagnetic heater is equipped with open slot and outer wall is equipped with automatic welding
Device；
Base platform, the base platform, which is equipped with, to be used to drive the relatively described rotating drive of spud leg of the electromagnetic heater
Dynamic device and the guide support structure for being used to support the electromagnetic heater, the base platform can relatively described spud leg cunnings
Move.
Preferably, in above-mentioned preheated weld device, the welding system is further included for monitoring the spud leg temperature
Temperature transducer.
Preferably, in above-mentioned preheated weld device, control system is further included, the temperature transducer, the electromagnetism add
Thermal and the automatic soldering device are all connected to the control system.
Preferably, in above-mentioned preheated weld device, the driving device is motor, and the motor is connected to described
Control system.
Preferably, in above-mentioned preheated weld device, the motor drives the electromagnetic heater by retarder
Rotation, the electromagnetic heater are columnar structured, and one end periphery of the electromagnetic heater holds round for step-like branch
Cylinder and other end periphery are the external gear engaged with the retarder gear of output end, and the guide support structure includes being used for
Support two guide wheels on the support cylindrical surface and be used to support and engage the driven gear of the external gear.
Preferably, in above-mentioned preheated weld device, the electromagnetic heater is additionally provided with positioned at the induction coil
The insulated thermal insulating layer of inner ring.
Preferably, in above-mentioned preheated weld device, the base platform is provided with for controlling the base platform liter
The hydraulic seat leg of drop.
Preferably, it is equipped with above-mentioned preheated weld device, below the base platform and prolongs along the spud leg length direction
The guide rail stretched, the base platform are slippingly arranged on the guide rail.
Preferably, in above-mentioned preheated weld device, the bottom of the base platform, which is provided with to slide with the guide rail, matches somebody with somebody
The wheel pair of conjunction, the base platform are additionally provided with brake apparatus.
Sea frock provided by the invention is for the preheated weld device of spud leg, including welding system and base platform, welding system
System includes the electromagnetic heater for being used to be set in the tubular structure of spud leg periphery, and electromagnetic heater circumferentially has sensing
Coil, the barrel of electromagnetic heater is equipped with open slot and outer wall is equipped with automatic soldering device；Base platform, which is equipped with, to be used to drive
Dynamic electromagnetic heater is with respect to the rotating driving device of spud leg and is used to support the guide support structure of electromagnetic heater, bottom
Seat platform can slide with respect to spud leg.
During using the preheated weld device, two sections of spud legs to be welded are fixed on precalculated position first, mobile base is put down
Platform makes electromagnetic heater be set in spud leg periphery, and by open slot correspondence in commissure, then, induction coil is powered with to stake
Leg is heated, and monitors the temperature of spud leg, when spud leg temperature reaches welding requirements, using automatic soldering device to open slot
The weld seam of place's exposure is welded, meanwhile, rotated using driving device driving electromagnetic heater, when electromagnetic heater rotates
After a week, that is, a welding job is completed, stops automatic soldering device and driving device at this time, while reduce the electricity of induction coil
Stream is so that spud leg gradually cools down.Base platform is moved to next commissure together with electromagnetic heater with respect to spud leg, you can
Start welding job next time.
As it can be seen that the invention has the advantages that：
1) it is of the invention using electromagnetic induction heating rather than the mode of surface heat transfer, so, difference can be heated
The spud leg of shape, different-diameter, versatility are stronger.
2) than surface heat conduction heating mode faster, and itself is basic for the electromagnetic induction heating mode that uses of the present invention
It will not generate heat, efficiency of heating surface higher.Meanwhile cause to produce electric current inside spud leg by the way of electromagnetic induction heating, so that
Inside spud leg and surface is integrally heated, so, the problem of internal-external temperature difference is not present in spud leg.
3) present invention is to be rotated heating unit and welder, relative to spud leg of the prior art rotation
Speech, it is more simple and convenient, and improve welding quality.
4) present invention improves welding efficiency, the degree of automation is high using automatic soldering device substitution manual welding.Weld
At one after weld seam, it is only necessary to device is moved to next commissure, is then fixed, you can welding job is carried out, it is very convenient.
Present invention also offers a kind of extra large frock for the prewarming welding method of spud leg, comprise the following steps：
Frock is set, two sections of spud legs to be welded are fixed on precalculated position, are arranged in spud leg periphery by base platform branch
The electromagnetic heater of the tubular structure of support, electromagnetic heater circumferentially have induction coil, the cylinder of electromagnetic heater
Wall is equipped with open slot, by open slot correspondence in the commissure of two sections of spud legs；
Spud leg is preheated, induction coil is powered to be heated to spud leg, and monitor the temperature of spud leg；
Spud leg is welded, when spud leg temperature reaches welding requirements, utilizes weldering of the automatic soldering device to being exposed at open slot
Seam is welded, meanwhile, rotated using driving device driving electromagnetic heater relative to spud leg, automatic soldering device follows electromagnetism
Heating unit rotates welding and just completes a welding job after a week, then, stops automatic soldering device and driving device, at the same time
Reduce the electric current of induction coil, spud leg is gradually cooled down, finally, base platform is moved to together with electromagnetic heater next
Commissure carries out preheated weld.
Preheated weld of the derivation for the beneficial effect that above-mentioned prewarming welding method produces with above-mentioned extra large frock for spud leg
The derivation for the beneficial effect that device band is come is substantially similar, therefore repeats no more herein.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of the preheated weld device in the specific embodiment of the invention；
Fig. 2 is the structure diagram of the electromagnetic heater in the specific embodiment of the invention.
In Fig. 1 and Fig. 2：
1- spud legs, 2- electromagnetic heaters, 3- guide wheels, 4- base platforms, 5- hydraulic seats leg, 6- wheels to, 7- brake apparatus,
8- general supplies device, 9- retarders, 10- guide rails, 11- motor, 12- computer systems, 13- external gears, 14- temperature transducers
Device, 15- open slots, 16- automatic soldering devices, 17- supports cylindrical surface, 18- induction coils, 19- insulated thermal insulating layers.
Embodiment
The core of the present invention is to provide a kind of extra large frock for the preheated weld device and its prewarming welding method of spud leg, uses
In further improving pre-heat effect and welding quality and work efficiency, and different shape and a certain range interior diameter can be applicable in
Spud leg.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig.1 and 2, Fig. 1 is the structure diagram of the preheated weld device in the specific embodiment of the invention, Fig. 2
For the structure diagram of the electromagnetic heater in the specific embodiment of the invention.
In a kind of specific embodiment scheme, the present invention provides a kind of extra large frock for the preheated weld device of spud leg, this is pre-
Thermosonic bonding apparatus includes welding system and base platform 4, wherein, welding system includes being used for the tubular for being set in 1 periphery of spud leg
The electromagnetic heater 2 of structure, electromagnetic heater 2 circumferentially have an induction coil 18, on the barrel of electromagnetic heater 2
Automatic soldering device 16 is equipped with equipped with open slot 15 and outer wall；Base platform 4, which is equipped with, is used to drive electromagnetic heater 2 with respect to stake
1 rotating driving device of leg and the guide support structure for being used to support electromagnetic heater 2, base platform 4 can be with respect to spud leg 1
Sliding.
During using the preheated weld device, two sections of spud legs 1 to be welded are fixed on precalculated position first, mobile base is put down
Platform 4 makes electromagnetic heater 2 be set in 1 periphery of spud leg, and open slot 15 is corresponded in commissure, then, induction coil 18 is led to
Electricity monitors the temperature of spud leg 1 to be heated to spud leg 1, when 1 temperature of spud leg reaches welding requirements, utilizes automatic welding
Device 16 welds the weld seam exposed at open slot 15, meanwhile, rotated using driving device driving electromagnetic heater 2,
When electromagnetic heater 2 rotates after a week, i.e. welding job of completion, stops automatic soldering device 16 at this time and driving fills
Put, while reduce the electric current of induction coil 18 so that spud leg 1 gradually cools down.Base platform 4 is opposite together with electromagnetic heater 2
Spud leg 1 is moved to next commissure, you can starts welding job next time.
Preferably, welding system further includes the temperature transducer 14 for monitoring 1 temperature of spud leg.Temperature transducer 14 is real-time
Monitor the temperature of spud leg 1, the temperature value of the spud leg 1 that welding personnel can be monitored according to temperature transducer 14 judges spud leg 1
Whether reach welding requirements, i.e., whether reach preheating target, in order to preferably instruct the progress of welding job.
In order to further improve the degree of automation of the preheated weld device, it is preferable that this programme further includes control system,
Temperature transducer 14, electromagnetic heater 2 and automatic soldering device 16 are all connected to control system.Driving device can also connect
In control system, automated control is realized by control system.The temperature value of the spud leg 1 monitored is input to by temperature transducer 14
In control system, control system by the real time temperature of spud leg 1 compared with preheating target temperature value, when the temperature of spud leg 1 reaches
When within the temperature range of to welding requirements, control system control automatic soldering device 16 and driving device work；When spud leg 1
Temperature exceed welding requirements temperature range when, control system adjusts again, increases or reduce the electric current of induction coil 18,
So as to ensure that welding temperature is stablized.It should be noted that control system mainly includes computer system 12, those skilled in the art
The different control modules and signal conversion biography connected from computer system 12 can be set according to each controlled module
Defeated module etc., therefore repeat no more herein.
It should be noted that this programme can select various forms of driving devices, such as motor, fluid pressure drive device
Deng, it is preferable that the driving device in this specific embodiment scheme is motor 11, and motor 11 is also connected to control system, such as
Shown in Fig. 1, motor 11 is connected to computer system 12, when the temperature of spud leg 1 reaches within the temperature range of welding requirements, meter
Calculation machine system 12 controls motor 11 to start, and motor 11 drives electromagnetic heater 2 to be rotated relative to spud leg 1, automatic welding tipping
16 weld seams for just following the rotation of electromagnetic heater 2 circumferential to spud leg 1 are put to weld.
For the ease of being powered to the electrical equipment such as motor 11 and electromagnetic heater 2, it is preferable that this programme also exists
Base platform 4 is provided with general supply device 8, as shown in Figure 1.It should be noted that the rotating speed that motor 11 exports is generally higher,
In order to reduce output speed, it is preferable that motor 11 drives electromagnetic heater 2 to be rotated by retarder 9 in this programme.
When general supply device 8 connection after and motor 11 start to work when, through retarder 9 deceleration after can pass through gear engagement drive
2 uniform speed slow of electromagnetic heater rotates.
It is sequentially connected for the ease of being realized with retarder 9, it is preferable that the electromagnetic heater 2 in this programme is cylindrical shape
Structure, one end periphery of electromagnetic heater 2 is step-like support cylindrical surface 17, and other end periphery is defeated with retarder 9
Outlet gear engagement external gear 13, guide support structure include be used to support the support cylindrical surface 17 two guide wheels 3 and
It is used to support and engages the driven gear (not shown) of external gear 13.Certainly, electromagnetic heater 2 is also designed to it
The tubular structure of his cross sectional shape, those skilled in the art can also be according to the different kind of drive (such as belt transmissions or chain
Transmission etc.) the both ends periphery of electromagnetic heater 2 is designed to other shapes, and using the guide support structure of other forms,
Repeat no more herein.
When mounted, the support cylindrical surface 17 of electromagnetic heater 2 is placed on the top of a pair of of guide wheel 3, external gear 13 with
The gear of output end of driven gear and retarder 9 engages, and when the gear of output end of retarder 9 rotates, will drive electromagnetic heating
Device 2 together rotates.Wherein, the gear of output end of retarder 9 and driven gear are located at the left and right sides of external gear 13 obliquely downward
Orientation is put, two guide wheels 3 positioned at the obliquely downward position of the left and right sides on support cylindrical surface 17, the gear of output end of retarder 9 and
13 preferred roller gear of driven gear and external gear, and the axis parallel arrangement of each gear, the axis of two guide wheels 3 are preferred
It is arranged in parallel with the axis of cylindrical shape electromagnetic heater 2, so set, electromagnetic heater 2 will be rotated around own axes,
So that device operation is more stablized.
It should be noted that support cylindrical surface 17 is step-like structure, it is preferable that for the cylindrical surface contacted with guide wheel 3
Outside diameter be less than electromagnetic heater 2 stack shell part outside diameter, guide wheel 3 can be connected at above-mentioned step surface so that
The axial direction of electromagnetic heater 2 can be fixed by obtaining the gear of output end and driven gear of guide wheel 3 and retarder 9, i.e.,
Avoid electromagnetic heater 2 from shifting vertically with respect to spud leg 1, ensure that welding position is accurate.
It should be noted that the barrel of electromagnetic heater 2 offers open slot 15, temperature transducers are provided with outside barrel
Device 14 and automatic soldering device 16, are internally provided with induction coil 18 circumferentially, i.e. induction coil 18 can surround whole stake
The periphery of leg 1.Wherein, open slot 15 is used for the weld seam for exposing 1 junction of spud leg, is welded easy to automatic soldering device 16
Work, is also convenient for temperature transducer 14 and 1 temperature of spud leg is monitored.Preferably, electromagnetic heater 2 is additionally provided with positioned at sense
The insulated thermal insulating layer 19 of 18 inner ring of coil is answered, as shown in Fig. 2, setting insulated thermal insulating layer 19 in 2 endosexine of electromagnetic heater, is
18 electric current of induction coil is passed to spud leg 1 and prevents the temperature of induction coil 18 from raising in order to prevent, plays the work of safeguard protection
With.
It should be noted that the base platform 4 in this programme mainly includes guide wheel 3, general supply device 8, retarder 9 and electricity
Motivation 11 etc., guide wheel 3, driven gear, retarder 9 and motor 11 are fixedly arranged at the top of base platform 4, general supply device
8 may be mounted at the lower surface of base platform 4.Certainly, those skilled in the art can also be fitted the arrangement of above-mentioned component
It should sexually revise.
Preferably, this programme base platform 4 is provided with the hydraulic seat leg 5 for controlling base platform 4 to lift, hydraulic seat leg
5 quantity can be multiple, it is preferable that four hydraulic seat legs 5 are provided with this programme, four hydraulic seat legs 5 can be realized together
Elevating control is walked, so that drive base platform 4 and electromagnetic heater 2 to realize that height is adjusted in vertical direction, and then can be with
The axis of electromagnetic heater 2 is overlapped with the center line of spud leg 1, further welded easy to automatic soldering device 16 and
14 measurement temperature of temperature transducer.
Preferably, the lower section of base platform 4 of this programme is additionally provided with the guide rail 10 extended along 1 length direction of spud leg, base
Platform 4 is slippingly arranged on guide rail 10, and the laying direction of guide rail 10 is axial consistent with spud leg 1, is arranged such, it is possible to
Base platform 4 is set to be moved along set direction, consequently facilitating whole preheated weld device to be moved to the difference on spud leg 1 successively
Commissure.Wherein, base platform 4 can be coordinated by the modes such as roller or sliding block and guide rail 10 and be slid, in order to further be easy to
The movement of base platform 4, it is preferable that this programme is also provided with the wheel pair being slidably matched with guide rail 10 in the bottom of base platform 4
6, as shown in Figure 1, base platform 4 can be moved freely on guide rail 10 by multiple or multigroup wheel to 6.For the ease of fixed bottom
Seat platform 4, it is preferable that this programme is additionally provided with brake apparatus 7 in base platform 4, when the position for determining whole preheated weld device
Postpone, just start brake apparatus 7, rolling of the wheel to 6 is prevented, so that the position of firm banking platform 4.Using guide rail mobile system
It can effectively ensure that the preheated weld device and 1 center line of spud leg are basically identical in whole welding process, improve use
Convenience and accuracy.
The extra large frock provided in this specific embodiment is as follows for the use process of the preheated weld device of spud leg：
First, both ends spud leg 1 to be welded is placed on to the top of 10 one end of guide rail, the axial direction of spud leg 1 and 10 side of extension of guide rail
To consistent, mobile base platform 4 is so that electromagnetic heater 2 is set in the periphery of spud leg 1, and weld seam is exposed to open slot
At 15, facilitate automatic soldering device 16 to work, then, move horizontally spud leg 1, start general supply device 8, pass through hydraulic seat leg 5
It is vertically moved up or down base platform 4 so that the axis of electromagnetic heater 2 and the center line of spud leg 1 are basically identical, restart braking dress
7 are put, firm banking platform 4.Computer system 12 is started to work, and exports signal, and induction coil 18 is electrified stream, starts to spud leg
1 is preheated.At this time, temperature transducer 14 monitors the temperature of spud leg 1, when 1 temperature of spud leg reaches welding requirements, department of computer science
System 12 restarts automatic soldering device 16 and motor 11, and electromagnetic heater 2 then starts slowly to rotate, meanwhile, automatic welding
Device 16 welds weld seam.When electromagnetic heater 2 rotates after a week, that is, complete welding job, at this time, computer system
12 output signals, automatic soldering device 16 and motor 11 are stopped, while the electric current being gradually reduced in induction coil 18, make
Spud leg 1 is obtained gradually to cool down.Room temperature is cooled to, a welding job is completed.Stop brake apparatus 7, promote base platform 4 to move
Work to next commissure.
As it can be seen that the invention has the advantages that：
1) it is of the invention using electromagnetic induction heating rather than the mode of surface heat transfer, so, difference can be heated
The spud leg of shape, different-diameter, versatility are stronger.
2) than surface heat conduction heating mode faster, and itself is basic for the electromagnetic induction heating mode that uses of the present invention
It will not generate heat, efficiency of heating surface higher.Meanwhile cause to produce electric current inside spud leg by the way of electromagnetic induction heating, so that
Inside spud leg and surface is integrally heated, so, the problem of internal-external temperature difference is not present in spud leg.
3) present invention is to be rotated heating unit and welder, relative to spud leg of the prior art rotation
Speech, it is more simple and convenient, and improve welding quality.
4) present invention is also controlled using computer system using automatic soldering device substitution manual welding, is improved weldering
Efficiency is connect, the degree of automation is high.Weld at one after weld seam, it is only necessary to device is moved to next commissure, is then fixed, i.e.,
Welding job can be carried out, it is very convenient.
Present invention also offers a kind of extra large frock for the prewarming welding method of spud leg, comprise the following steps：
Frock is set, two sections of spud legs 1 to be welded are fixed on precalculated position, are arranged in 1 periphery of spud leg by base platform 4
The electromagnetic heater 2 of the tubular structure of support, electromagnetic heater 2 circumferentially have induction coil 18, electromagnetic heating dress
The barrel for putting 2 is equipped with open slot 15, and open slot 15 is corresponded in the commissure of two sections of spud legs 1；
Spud leg is preheated, induction coil 18 is powered to be heated to spud leg 1, and monitor the temperature of spud leg 1；
Spud leg is welded, when 1 temperature of spud leg reaches welding requirements, using automatic soldering device 16 to being exposed at open slot 15
Weld seam welded, meanwhile, using driving device driving electromagnetic heater 2 rotated relative to spud leg 1, automatic soldering device 16
Follow electromagnetic heater 2 to rotate welding and just complete a welding job after a week, then, stop automatic soldering device 16 and drive
Dynamic device, while reduce the electric current of induction coil 18, spud leg 1 is gradually cooled down, finally, by base platform 4 together with electromagnetic heating
Device 2 is moved to next commissure and carries out preheated weld.
Preheated weld of the derivation for the beneficial effect that above-mentioned prewarming welding method produces with above-mentioned extra large frock for spud leg
The derivation for the beneficial effect that device band is come is substantially similar, therefore repeats no more herein.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (10)
1. a kind of sea frock is for the preheated weld device of spud leg, it is characterised in that including：
Welding system, includes the electromagnetic heater (2) of the tubular structure for being set in spud leg (1) periphery, and the electromagnetism adds
Thermal (2) circumferentially has an induction coil (18), the barrel of the electromagnetic heater (2) be equipped with open slot (15) and
Outer wall is equipped with automatic soldering device (16)；
Base platform (4), the base platform (4), which is equipped with, to be used to drive the relatively described spud leg (1) of the electromagnetic heater (2)
Rotating driving device and the guide support structure for being used to support the electromagnetic heater (2), the base platform (4) can
Relatively described spud leg (1) sliding.
2. preheated weld device according to claim 1, it is characterised in that the welding system is further included for monitoring institute
State the temperature transducer (14) of spud leg (1) temperature.
3. preheated weld device according to claim 2, it is characterised in that further include control system, the temperature transducers
Device (14), the electromagnetic heater (2) and the automatic soldering device (16) are all connected to the control system.
4. preheated weld device according to claim 3, it is characterised in that the driving device is motor (11), institute
State motor (11) and be connected to the control system.
5. preheated weld device according to claim 4, it is characterised in that the motor (11) passes through retarder (9)
The electromagnetic heater (2) is driven to rotate, the electromagnetic heater (2) is columnar structured, the electromagnetic heater
(2) one end periphery is step-like support cylindrical surface (17) and other end periphery is and the retarder (9) gear of output end
The external gear (13) of engagement, the guide support structure include being used to support two guide wheels (3) of support cylindrical surface (17)
And it is used to support and engages the driven gear of the external gear (13).
6. preheated weld device according to claim 1, it is characterised in that the electromagnetic heater (2) is additionally provided with
Positioned at the insulated thermal insulating layer (19) of the induction coil (18) inner ring.
7. preheated weld device according to claim 1, it is characterised in that the base platform (4) is provided with for controlling
Make the hydraulic seat leg (5) of the base platform (4) lifting.
8. preheated weld device according to claim 1, it is characterised in that be equipped with below the base platform (4) along institute
The guide rail (10) of spud leg (1) length direction extension is stated, the base platform (4) is slippingly arranged on the guide rail (10).
9. preheated weld device according to claim 8, it is characterised in that the bottom of the base platform (4) is provided with
Brake apparatus (7) is additionally provided with to (6), the base platform (4) with the wheel that the guide rail (10) is slidably matched.
10. a kind of sea frock is for the prewarming welding method of spud leg, it is characterised in that comprises the following steps：
Frock is set, two sections of spud legs (1) to be welded are fixed on precalculated position, are arranged in the spud leg (1) periphery by base
The electromagnetic heater (2) of the tubular structure of platform (4) support, the electromagnetic heater (2) circumferentially have the line of induction
Enclose (18), the barrel of the electromagnetic heater (2) is equipped with open slot (15), and the open slot (15) is corresponding described in two sections
The commissure of spud leg (1)；
Spud leg is preheated, the induction coil (18) is powered to be heated to the spud leg (1), and monitor the spud leg (1)
Temperature；
Spud leg is welded, when the spud leg (1) temperature reaches welding requirements, using automatic soldering device (16) to the open slot
(15) weld seam of place's exposure is welded, meanwhile, drive the relatively described spud leg of electromagnetic heater (2) using driving device
(1) rotate, the automatic soldering device (16) follows the electromagnetic heater (2) to rotate welding and just completes once to weld after a week
Work is connect, then, stops the automatic soldering device (16) and the driving device, while reduce the induction coil (18)
Electric current, makes the spud leg (1) gradually cool down, finally, the base platform (4) is mobile together with the electromagnetic heater (2)
Preheated weld is carried out to next commissure.
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| CN201610683726.9A CN106041378B (en) | 2016-08-17 | 2016-08-17 | It is a kind of sea frock for spud leg preheated weld device and its prewarming welding method |
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| CN201610683726.9A CN106041378B (en) | 2016-08-17 | 2016-08-17 | It is a kind of sea frock for spud leg preheated weld device and its prewarming welding method |
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| CN112077469B (en) * | 2020-08-25 | 2022-04-15 | 广东工业大学 | Method for continuously preheating and welding and installing giant maritime work pile leg in field and in multiple sections |
| CN112475683B (en) * | 2020-11-24 | 2023-02-21 | 中车大连机车车辆有限公司 | Device and method for preheating circumferential weld joint and heating and slow cooling |
| WO2022236897A1 (en) * | 2021-05-08 | 2022-11-17 | 南京轩世琪源软件科技有限公司 | Quality detection apparatus based on welding element, and detection method therefor |
| CN114310061A (en) * | 2022-01-27 | 2022-04-12 | 卫腾飞 | Equipment for improving preheating efficiency of cylinder before welding |
| CN114473121B (en) * | 2022-03-18 | 2022-09-27 | 安徽祥源汽车配件制造有限公司 | Intelligent assembling and welding device for automobile oil pipe joint |
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| CN106041378A (en) | 2016-10-26 |
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