CN106348216A - Boiler hearth maintenance platform and connection clamping plate at intersection portion of I-beams thereof - Google Patents
Boiler hearth maintenance platform and connection clamping plate at intersection portion of I-beams thereof Download PDFInfo
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- CN106348216A CN106348216A CN201610792389.7A CN201610792389A CN106348216A CN 106348216 A CN106348216 A CN 106348216A CN 201610792389 A CN201610792389 A CN 201610792389A CN 106348216 A CN106348216 A CN 106348216A
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
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Abstract
The invention discloses a boiler hearth maintenance platform and a connection clamping plate at the intersection portion of I-beams thereof. The connection clamping plate comprises a bent plate, the bent plate is provided with two clamping plate bodies with sections at different heights, the two clamping plate bodies include the first clamping plate body and the second clamping plate body, a group of parallel outer edges of the first clamping plate body are bent downward to form a first sliding groove, the first sliding groove is in sliding fit with a wing panel of the I-beam A, the second clamping plate body is arranged on the back, facing the I-beam B, of the first sliding groove, and the second clamping plate body is parallel to a wing panel of the I-beam B. The first clamping plate body and the second clamping plate body are both provided with bolt row holes, connection bolts are assembled in the bolt row holes in the first clamping plate body so that the first clamping plate body can be fixed to the I-beam A, and connection bolts are assembled in the bolt row holes in the second clamping plate body so that the I-beam B and the I-beam A can be fastened and fixed. It can be seen that the two I-beams at the intersection portion can be fixed through the connection clamping plate.
Description
Technical field
The present invention relates to a kind of boiler hearth overhauling platform.
Background technology
Boiler hearth overhauling platform is efficient in burner hearth, multi-functional high-altitude maintenance construction operation equipment, and it instead of biography
The scaffold of system, is operated by maintainer, makes platform be adjusted to desired location construction operation.There is rational in infrastructure, user
Just, safe and reliable, high working efficiency, light labor intensity and maintenance duration short the features such as, be to obtain extensively in current Thermal Power Generation Industry
The approved product of application, is available for each portion maintenance in burner hearth and uses, come into operation in big-and-middle-sized power station at home.
Most boiler hearth overhauling platform, is all to pass through steel connector group using the I-shaped aluminium section bar of 2a12 material
The platform structure frame of dress, therefore, adds the springboard of surrounding laying using the platform of this structure, and deadweight just can be up to 4
Ton is many.So for manufacturing enterprise, how to reduce boiler hearth overhauling platform deadweight, it is current burner hearth inspection platform development
An important research direction.
In order to reduce inspection platform overall weight, in the case of considering cost, select light material aluminum inexpensively
Alloy connector, to replace steel connector, is a kind of technological means that those skilled in the art will be readily apparent, but, due to
Platform structure frame is a kind of space structure, including some horizontal I-shaped aluminium section bars and some longitudinal I-shaped aluminium section bars, each other
One entirety is constituted by the overlap joint of the aluminum coupling element of which kind of version, then needs those skilled in the art to carry out in detail
Research after just can determine that.
When connecting, between joint face, there may be dislocation, steering etc., using integrally formed aluminum coupling element, for
The requirement of integral forming technique can be higher, now, just may require that and welds aluminium section bar of different shapes to make using welding procedure
Become required connector；And the welding quality for aluminium section bar, it is also the main points that this area needs to pay attention to, especially for
For being used in the connector of inspection platform, welding quality directly affects the security performance of product.
Usually, inspection platform is the driving by hoist engine, completes descending operation in boiler furnace；Due to Boiler Furnace
Thorax internal diameter is typically all tens meters, and the Outside Dimensions of inspection platform are almost mated with boiler furnace inner wall size, therefore, maintenance
Platform area is excessively huge, and in lifting process or in operation process, even if less skew, its periphery is likely to by leading
Touch to wheel with inboard wall of burner hearth；It is and the existing directive wheel installation dimension on inspection platform is more fixing, substantially unadjustable,
Therefore, the pulley yoke of directive wheel easily damages, and meanwhile, direct connected mode usually rigidly connects directive wheel with inspection platform
Connect, therefore, when directive wheel is touched with inboard wall of burner hearth, easily cause rocking of inspection platform, the safety of impact inspection platform.
Content of the invention
For above-mentioned technical problem, the present invention proposes a kind of boiler hearth overhauling platform, it include some horizontal I-beams,
Some longitudinal I-beams and multiple connections of formation platform base that described horizontal I-beam and longitudinal I-beam are connected
Part；It is capable of the effect that overall weight is relatively light, quickly tear down and build；And the connector being at I-beam decussation is then wherein
One more important part, the present invention passes through a kind of exploitation connection clamp, can be by some horizontal I-beams, some longitudinal works
Word beam quickly and easily links into an integrated entity.
In order to realize above-mentioned technical purpose, the present invention adopts the following technical scheme that
A kind of connection clamp at I-beam decussation, is in I-beam a at the position that intersects vertically, work for connecting
Word beam b；Including a bending plate, described bending plate has two clamps that section is located on differing heights, is the first clamp respectively
With the second clamp, one group of outward flange downward bending formation first chute being parallel to each other of described first clamp, described first is sliding
It is slidably matched between the wing plate of groove and I-beam a, the back of described first chute has the second card towards the direction of I-beam b
Plate, the second clamp is parallel with the wing plate of I-beam b；Be equipped with bolt round on described first clamp and the second clamp, by
In bolt round on first clamp, equipped connecting bolt is so that the first clamp is fixed with I-beam a phase, by the second clamp
On bolt round in equipped connecting bolt so that being fixed between I-beam b and I-beam a.
As a further improvement on the present invention, described first chute back is connected with the second clamp by the cambered surface of indent.
As a further improvement on the present invention, described bending plate is integrally formed part using what a356 aluminium alloy was made.
As a further improvement on the present invention, described bending plate is made using 6061 aluminium alloys, and the first clamp and second
Connected by welding manner between clamp；Welding procedure between first clamp, the second clamp is: includes cleaning, preheating
Technique, welding procedure and postwelding strengthen handling process.
As a further improvement on the present invention, the bolt round that described first clamp and the second clamp are provided with all includes
Two bolts hole.
Another technical purpose of the present invention is to provide a kind of boiler hearth overhauling platform, sets including main platform body and lifting
Standby；Described main platform body, including girder, auxiliary girder, folded beam, spacing beam and springboard beam, and puts down in the periphery of main platform body
Paving springboard, the inner ring of springboard is fitted with fence；Fence is arranged in main platform body by fence bearing；Girder is passed through even with auxiliary girder
Connect clamp and realize both intersect vertically；Folded beam realizes foldable connection by folding joint and auxiliary girder；Described connection clamp
Including a bending plate, described bending plate has two clamps that section is located on differing heights, is the first clamp and second respectively
Clamp, one group of outward flange downward bending being parallel to each other of described first clamp forms the first chute, described first chute and master
Be slidably matched between the wing plate of beam, the back of described first chute has the second clamp towards the direction of auxiliary girder, the second clamp with
The wing plate of auxiliary girder is parallel；It is equipped with bolt round, by the bolt on the first clamp on described first clamp and the second clamp
It is equipped with connecting bolt so that the first clamp is fixed with girder phase, by equipped in the bolt round on the second clamp in round
Connecting bolt is so that be fixed between auxiliary girder and girder.
Auxiliary girder and girder, between the two neighboring bolt hole of the second clamp bolt round, are provided with foil gauge.
Described springboard is m shape springboard, including springboard platform and be arranged at the supporting construction below springboard platform；Described
The cross section of springboard platform is in that isosceles trapezoid shape is arranged, and supporting construction is arranged on the small end of aforementioned isosceles trapezoid shape springboard platform；
Described supporting construction includes being arranged on the first supporting construction at springboard platform medium position, and the both sides of the first supporting construction are symmetrical
Be provided with the second supporting construction, the 3rd supporting construction, the 3rd supporting construction is arranged at the end position of springboard platform, and
Two supporting constructions are then located between the first supporting construction, the 3rd supporting construction；Wherein: the first described supporting construction, including
One internal layer arm, the first outer layer arm；First internal layer arm, the cross section of the first outer layer arm are isosceles trapezoid shape, and first
Internal layer arm is socketed in the inner chamber of the first outer layer arm, and the center line of the first internal layer arm, the first outer layer arm overlaps；Described
Second supporting construction, including the second internal layer arm, the second outer layer arm；Second internal layer arm, the cross section of the second outer layer arm
It is isosceles trapezoid shape, the second internal layer arm is socketed in the inner chamber of the second outer layer arm, and the center of the second internal layer arm is relatively
Offset to the center position of springboard in the center of the second outer layer arm；Described the first supporting construction, the described second support
The big end of structure is all connected with springboard platform；The 3rd described supporting construction, section shape in a rectangular trapezoid arrange, its beveled end with
Springboard platform connects.
Described first internal layer arm, the first outer layer arm, the second internal layer arm, the second outer layer arm inclination angle all consistent,
Value is between 70-80 °.
Spacing between the hypotenuse of the first internal layer arm and the first outer layer arm hypotenuse is 1-2mm；First internal layer arm
Spacing between the base of base and the first outer layer arm is 1-2mm.
According to above-mentioned technical scheme, with respect to prior art, the present invention has a following beneficial effect:
1st, the present invention develops a kind of connection clamp, is capable of being between two I-beams at decussation position
Connection fasten, meanwhile, the mode of bolt tightening between the two, dismounting, assembling fast facilitate；
2nd, the advantage that the present invention adopts m shape springboard:
Mechanics Performance Testing:
Original springboard, the supporting mechanism that it has is rectangular-shaped column.
Conclusion:
By above analysis, " m " type springboard decreases 9%, and maximum distortion with respect to original springboard gross weight
Also decrease to some degree, comparatively also safer.It follows that the present invention not only can reduces cost, Er Qiean
Full property there has also been larger raising.
Brief description
Fig. 1 is the front view of boiler hearth overhauling platform of the present invention；
Fig. 2 is the side view of Fig. 1；
In Fig. 1, Fig. 2,1 is monolayer π word beam；2 is fence pipe；3 is double-deck π word beam；4 is springboard beam；5 for fence cross bar even
Fitting；6 is the double card button a being arranged between fence pipe and fence vertical rod；7 is spacing beam；8 is fence pole；9 is to be arranged on to enclose
Double card button b between hurdle pipe and fence pole；10 is fence vertical rod；11 is to prop up to hang vertical rod；12 is springboard；13 is protector；14
For protection rope；16 is lifting rope；17 buckle for spiral lockset；18 is aluminum corner brace；19 is steel wire rope；20 is folding joint；21 prop up for fence
Pole socket；22 is to draw suspension centre；23 is auxiliary girder；24 is a2, a3, a4 beam；25 is fixing between springboard double end；26 is a1, a5, a6 beam；27
Based on suspension centre；28 is secondary suspension centre；29 is twin beams connector；30 is to prop up to hang vertical rod seat；31 is fence bearing；32 is position-limited wheel dress
Put；33 is single-beam connector；34 is springboard joint；35 is folded beam；36 is springboard；37 fix for springboard single head；
Fig. 3 is the front view connecting clamp；
Wherein, 110 is the first clamp；120 is the second clamp；
Fig. 4 is the side view of Fig. 3；
Wherein, 1101 is the first chute；
Fig. 5 is the top view of Fig. 3；
Fig. 6 intersects attachment structure schematic diagram between I-beam for each two；
Wherein, 140 is I-beam a；150 is I-beam b；
Fig. 7 is first axle connecting plate front view；
Wherein, 210 is first axle connecting plate；2102 is hinged seat；
Fig. 8 is Fig. 7 side view；
Wherein, 2101 is the second chute；
Fig. 9 is second hinge connecting plate front view；
Wherein, 310 is second hinge connecting plate；3101 is the 3rd chute；3102 is clamping plate；3103 is hinged seat；
Figure 10 is Fig. 9 side view；
Figure 11 is foldable I-beam attachment structure schematic diagram；
Wherein, 240 is I-beam c；350 is I-beam d；
Figure 12 is the structural representation after foldable I-beam folds；
Figure 13 is the front view of spacing wheel apparatus in the present invention；
Wherein, 321 is position-limited wheel；322 is clip；
Figure 14 is the side view of Figure 12；
Wherein, 323 is pulley yoke；324 is lead rail axis；325 is spring；326 is guiding parts；327 is guide rail sleeve；328
For guide rail sleeve bottom；329 is track base；330 is connecting bolt.
Figure 15 is the partial enlarged drawing of fence bearing；
Figure 16 is the structural representation of fence seat clamp；
Figure 17 is the structural representation of fence connecting tube；
In figure: fence seat clamp 31-1；Fence seat chute 31-1a；Fence seat card adapter plate 31-1b；Fence connecting tube 31-2；
Outer tube wall draw-in groove 31-2a；Inner tubal wall draw-in groove 31-2b；
Figure 18 is the structural representation that I-beam () splices taking a beam as a example；
Figure 19 is the structural representation of joint clamp；
In Figure 18: 1-1, split beam a；1-2, joint clamp；1-3, split beam b；
Figure 20 is the sectional view in main one direction of suspension centre；
Figure 21 is the sectional view in main another direction of suspension centre；
In Figure 20-21: 27-1, u shape structure；27-2, draw-in groove；27-3, connecting hole；
Figure 22 is the structural representation drawing suspension centre；
In figure: 22-1, draw-in groove；22-2, reinforcement column；
Figure 23 is the structural representation of springboard of the present invention；
In figure: 12-1 is springboard platform；12-2 is the 3rd supporting construction；12-3 is the second supporting construction；12-4 is first
Supporting construction；L is the width at the big end of isosceles trapezoid shape springboard platform；C is the height of isosceles trapezoid shape springboard platform；H is first
Supporting construction, the second supporting construction, the height of the 3rd supporting construction；A is the width of the 3rd supporting construction；B props up for the first internal layer
Spacing between the hypotenuse of pipe and the first outer layer arm hypotenuse, the inner side hypotenuse of the second internal layer arm are interior with the second internal layer arm
Spacing between skew back side；D is the spacing between the outside hypotenuse of the second internal layer arm and the outside hypotenuse of the second internal layer arm；
E is spacing between the base of the first internal layer arm and the first outer layer arm base, outside the base and second of the second internal layer arm
Spacing between layer arm base；F is the first supporting construction, the width of the second supporting construction bottom；α be the first supporting construction,
The inclination angle of the second supporting construction hypotenuse.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, and never conduct to the present invention and its application or makes
Any restriction.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, broadly falls into the scope of protection of the invention.Unless specifically stated otherwise, otherwise real at these
Apply in example illustrate part and step positioned opposite.Expression formula and numerical value do not limit the scope of the invention.Simultaneously it should bright
In vain, for the ease of description, the size of the various pieces shown in accompanying drawing is not to draw according to actual proportionate relationship.Right
May be not discussed in detail in technology, method and apparatus known to person of ordinary skill in the relevant, but in the appropriate case, institute
State technology, method and apparatus should be considered to authorize a part for description.In all examples with discussion shown here, appoint
What occurrence should be construed as merely exemplary, not as restriction.Therefore, the other examples of exemplary embodiment can
To have different values.
For the ease of description, space relative terms can be used here, such as " ... on ", " ... top ",
" in ... upper surface ", " above " etc., for describing as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms be intended to comprise except device in figure described by orientation
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
Part or construction above " or " other devices or construction on " device after will be positioned as " other devices or construction under
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.This device can also other different modes positioning (ratating 90 degrees or be in other orientation).
As shown in Figure 1 and Figure 2, as shown in Figure 1 and Figure 2, it discloses the knot of boiler hearth overhauling platform of the present invention
Structure schematic diagram, boiler hearth overhauling platform includes main platform body and lifting appliance；Described main platform body, generally includes master
Beam, auxiliary girder, folded beam 35, spacing beam 7 and springboard beam 4, and in the periphery of main platform body tiling springboard 12, the inner ring of springboard 12
It is fitted with fence；Fence is arranged in main platform body by fence bearing 31；Girder passes through to be connected both clamp realizations with auxiliary girder
Intersect vertically；Folded beam 35 realizes foldable connection by folding joint 20 and auxiliary girder；Springboard beam 4 is also by connecting clamp
It is arranged on two auxiliary girders being in outside.Described girder, auxiliary girder, all include some sections of split beams, adjacent two sections of splits
Beam a, split beam b are spliced by joint clamp.
In accompanying drawing, b1-b11 beam is auxiliary girder；A1-a6 beam is girder；C1-c11 beam is folded beam 35；D1, d2 are
Spacing beam 7, wherein:
Girder has two classes, and a class is monolayer π word beam, another kind of, is double-deck π word beam, and a1, a5, a6 are monolayer π word beams,
A2, a3, a4 are double-deck π word beams；Certainly, girder can also select I-beam；Spacing beam d1, d2 be periodically installed at girder a2,
Between a3；Auxiliary girder, folded beam are all from I-beam.
Each auxiliary girder is parallel to each other, and each girder is parallel to each other, and each folded beam is also parallel to each other.
Each girder is all intersected vertically with auxiliary girder, and passes through to connect clamp connection at the place of intersecting vertically.
It is in two girders of end, that is, girder a1, a6 is arranged on the upside of auxiliary girder, and remaining girder is then arranged on auxiliary girder
Downside.
For ease of the installation of lifting appliance, on girder, particularly beam a2, a4 is provided with multiple main suspension centres 27；And just
In folding or the expansion of folded beam 35, then it is provided with the auxiliary girder installing folded beam and some draws suspension centre 22.
Fig. 3-Fig. 6 disclose in detail the connection clamp at a kind of I-beam decussation, is in vertical phase for connecting
Hand over I-beam a140, the I-beam b150 at position, wherein I-beam a140 can be girder, I-beam b150 can be pair
Beam, both can also exchange certainly；This connection clamp includes a bending plate, and described bending plate has section and is located on differing heights
Two clamps, be the first clamp 110 and the second clamp 120 respectively, one group of outside being parallel to each other of described first clamp 110
Edge downward bending forms the first chute 1101, is slidably matched between described first chute 1101 and the wing plate of I-beam a140, institute
The back stating the first chute 1101 has the second clamp 120, the second clamp 120 and I-beam towards the direction of I-beam b150
The wing plate of b150 is parallel；It is equipped with bolt round, by the first clamp 110 on described first clamp 110 and the second clamp 120
On bolt round in equipped connecting bolt so that the first clamp 110 is fixed with I-beam a140 phase, by the second clamp
In bolt round on 120, equipped connecting bolt is so that be fixed between I-beam b150 and I-beam a140.
After loosening for preventing clamp from connecting, accident occurs, and I-beam a140 of the present invention, I-beam b150 are in the second clamp 120
Between the two neighboring bolt hole of bolt round, it is provided with foil gauge.By arranging foil gauge on the second clamp 120, thus
Realize carrying out real-time detection to the contact pressure between the second clamp 120 and I-beam.
Described first chute 1101 back is connected with the second clamp 120 by the cambered surface of indent.Described bending plate adopts
What a356 aluminium alloy was made is integrally formed part.Be equally after the I-beam that aluminum alloy materials are made is connected, compared to existing
For having steel structure platform, weight mitigates significantly.Described bending plate may not be and is integrally formed part, now adopts 6061-t6
Make, and connected by welding manner between the first clamp 110 and the second clamp 120.
As a further improvement on the present invention, I-beam b150 and I-beam a140 is in the second clamp 120 bolt round
Between two neighboring bolt hole, it is provided with foil gauge.By arranging foil gauge on the second clamp 120, thus realizing to second
Contact pressure between clamp 120 and I-beam carries out real-time detection, prevents clamp from connecting and loosens rear accident generation.
By above-mentioned connect clamp and be used at the girder of inspection platform of the present invention and auxiliary girder crossover location when, will be above-mentioned
I-beam a140 be set to girder, I-beam b150 is set to auxiliary girder, now, between the first chute 1101 and the wing plate of girder slide
Cooperation, the back of described first chute 1101 has the second clamp 120, the second clamp 120 and auxiliary girder towards the direction of auxiliary girder
Wing plate is parallel；When then installing, by connecting bolt equipped in the bolt round on the first clamp 110 so that the first clamp 110
Fix with girder phase, by connecting bolt equipped in the bolt round on the second clamp 120 so that pressing between auxiliary girder and girder
Fasten.
Fig. 7 to Figure 12 more at large discloses a kind of folding joint, be connected to I-beam c240, I-beam d350 it
Between, it is capable of the folding between I-beam c240, I-beam d350 or expansion, including hinged first axle even
Fishplate bar 210 and second hinge connecting plate 310；Described first axle connecting plate 210 has the wing plate slip company with I-beam c240
The second chute 2101 connecing；Second hinge connecting plate 310 has the 3rd chute being slidably connected with the wing plate of I-beam d350
3101 and can by I-beam c240, I-beam d350 web end splicing two clamping plate 3102；Two described clamping plate
3102 set up both sides at I-beam c240, I-beam d350 web end splicing seams position, meanwhile, described second chute separately
The 2101st, bolt on bolt connecting hole, and two clamping plate 3102 is provided with the 3rd chute 3101 and two clamping plate 3102
Connecting hole is mating hole；By being equipped with connecting bolt in the bolt connecting hole of the second chute 2101, by described first axle even
The wing plate phase of fishplate bar 210 and I-beam c240 is fixed；By being equipped with connecting bolt in the bolt connecting hole of the 3rd chute 3101,
Mutually will fix between described second hinge connecting plate 310 and I-beam d350；By the bolt connection on two clamping plate 3102
It is equipped with connecting bolt in hole, the web end of the web end of I-beam c240 and I-beam d350 is spliced integral.
Above-mentioned I-beam c240, I-beam d350 specific on inspection platform of the present invention it is known that I-beam
C240 is auxiliary girder, and I-beam d350 is folded beam.
As one preferred embodiment of folding joint of the present invention, described second chute 2101 passes through first axle connecting plate
210 both sides of the edge bend downwards and are formed.
As a preferred embodiment of folding joint of the present invention, the both sides of the edge of described second hinge connecting plate 310 to
Under be bent to form described second chute 2101 after, continue bending to form the l clevis plates 3102 of two opposite arrangements.
As one preferred embodiment of folding joint technical scheme of the present invention, the bolt connection that described clamping plate 3102 opens up
Hole has 6, wherein three bolt connecting holes be arranged in equilateral triangle with the web end of I-beam c240 just to clamping plate
3102 plate faces, remaining three bolt connecting holes be also arranged in equilateral triangle with the web end of I-beam d350 just to folder
Plate 3102 plate face.
As one preferred embodiment of folding joint technical scheme of the present invention, in described l clevis plate 3102, sliding with the 3rd
At the position that groove 3101 flanging positioned opposite and the side adjacent with first axle connecting plate 210 cross, exist one straight
The unfilled corner of angle triangle.
As one preferred embodiment of folding joint technical scheme of the present invention, described second the back side up of chute 2101 sets
It is equipped with one piece of riser a with hinge hole a；The back side up of described 3rd chute 3101 is provided with a hinge seat, described
Hinge seat includes the riser b with hinge hole b of two pieces of alternate arrangements；Riser a is placed between two pieces of riser b, and on riser a
Hinge hole b on hinge hole a and two riser b is mating hole；By the hinge hole on the hinge hole a on riser a and two riser b
In b, bearing pin is installed, will be hinged to first axle connecting plate 210, second hinge connecting plate 310.
As one preferred embodiment of folding joint technical scheme of the present invention, first axle connecting plate 210 and second hinge
Connecting plate 310 is all made using 6061-t6 aluminium alloy；And pass through between riser a and the second chute 2101 to be welded and fixed, riser b
Also by being welded and fixed and the 3rd chute 3101 between；Between riser a and the second chute 2101, riser b and the 3rd chute 3101
Between be welded and fixed.If if one product, can be made using a356 aluminium alloy.
Above-mentioned folding joint is applied to inspection platform of the present invention, described I-beam c can be set to auxiliary girder,
I-beam d is set to folded beam 35, and now, described first axle connecting plate 210 has second being slidably connected with the wing plate of auxiliary girder
Chute 2101；Second hinge connecting plate 310 has the 3rd chute 3101 being slidably connected with the wing plate of folded beam and can be by
Auxiliary girder, two clamping plate 3102 of folding web end splicing；Two described clamping plate 3102 set up separately in auxiliary girder, fold web
Both sides at the splicing seams position of end, described second chute 2101, the 3rd chute 3101 and two clamping plate 3102 are all provided with meanwhile
The bolt connecting hole being equipped with bolt connecting hole, and two clamping plate 3102 is mating hole；By the bolt in the second chute 2101
It is equipped with connecting bolt in connecting hole, the wing plate phase of described first axle connecting plate 210 and auxiliary girder is fixed；By in the 3rd chute
It is equipped with connecting bolt in 3101 bolt connecting hole, mutually will fix between described second hinge connecting plate 310 and folded beam；Pass through
It is equipped with connecting bolt in the bolt connecting hole on two clamping plate 3102, by the web end of the web end of auxiliary girder and folded beam
Splicing is integral.
Referring to shown in Figure 13～Figure 14, the invention discloses a kind of elastic spacing wheel mechanism, including position-limited wheel 321, pulley
Frame 323 and lead rail axis 324；Also include spring 325, guide rail sleeve 327 and track base 329；Wherein, position-limited wheel 321 passes through to slide
Wheel carrier 323 is connected to lead rail axis 324 one end, and lead rail axis 324 other end is socketed on the inner chamber of guide rail sleeve 327, and lead rail axis 324
Described spring 325 is set and guide rail sleeve 327 between, guide rail sleeve 327 side wall is axially arranged with stopper slot along guide rail sleeve 327, one
Guiding parts is fixedly connected with described lead rail axis 324 after passing through described stopper slot；The bottom 328 of described guide rail sleeve 327 connects leads
Rail chair 329, described track base 329 has the chute on the side wing that can be connected to I-beam, and chute is provided with bolt hole,
Made fixing between described track base 329 and I-beam by connecting bolt 330.
Further, lead rail axis 324 are hollow axle；Spring 325 is placed in the inner chamber of lead rail axis 324, and one end of spring 325
Fixing with pulley yoke 323, the other end is connected with guide rail sleeve 327 after then passing through lead rail axis 324.
Further, described guiding parts 326 is a guide blot.
Further, in order to mitigate the weight after platform integrated connection further, described track base 329, guide rail sleeve 327 select
Made with 6016-t6 aluminum alloy material；And track base 329, guide rail sleeve 327 pass through to be welded and fixed, track base 329, guide rail sleeve 327
Between be welded and fixed.
Above-mentioned elastic spacing wheel mechanism, is fitted in the surrounding of main platform body, due to having between position-limited wheel 321 and platform
The buffer structure of lead rail axis 324, spring 325 and guide rail sleeve 327 composition is so that achieve between position-limited wheel 321 and I-beam
Certain energy snubber, when directive wheel is touched with inboard wall of burner hearth, is not result in the skill that the pulley yoke 323 of position-limited wheel 321 damages
Art problem.
Referring to shown in Figure 15～Figure 17, the invention discloses a kind of fence bearing, for fence is arranged on main platform body
On, it is connected with the I-beam being in outside main platform body, be mostly installed on b beam (auxiliary girder) and c beam (folded beam)；Described enclose
Hurdle bearing includes fence seat clamp 31-1 and fence connecting tube 31-2；Described fence seat clamp 31-1 has and I-beam wing plate
The fence seat chute 31-1a of cooperation, this fence seat chute 31-1a offers bolt hole, is connected by equipped in bolt hole
Bolt, fence seat clamp 31-1 is arranged on I-beam；Described fence seat clamp 31-1 is at the back of fence seat chute 31-1a
Middle position is provided with fence seat card adapter plate 31-1b；The inwall of fence connecting tube 31-2 is provided with and fence seat card adapter plate 31-
The inner tubal wall draw-in groove 31-2b of 1b cooperation, and the outer tube wall of fence connecting tube 31-2 is then provided with and some uniform has anti-skidding work
Outer tube wall draw-in groove 31-2a；Fence connecting tube 31-2 passes through joining of inner tubal wall draw-in groove 31-2b and fence seat card adapter plate 31-1b
Close, be arranged on the back side of fence seat chute 31-1a.Fence includes fence pipe, fence vertical rod, is arranged on fence pipe and fence vertical rod
Between double card button a, fence pole, the double card button b being arranged between fence pipe and fence pole；Wherein button is passed through in fence vertical rod
Part is connected with fence connecting tube 31-2, and fence pole is then connected with I-beam.
Described fence seat clamp 31-1 and fence connecting tube 31-2 are all made using 6061-t6 aluminium alloy.Described enclose
The end face of hurdle connecting tube 31-2 is welded and fixed by welding procedure with the back of fence seat chute 31-1a
Be commonly used for the setting for this platform girder of main body, auxiliary girder is longer, therefore, if generally require will using joint clamp 1-2
Dry split beam is spliced, and referring specifically to Figure 18-Figure 19, this joint clamp 1-2 is the connecting plate that a section becomes u shape, this u shape
The connecting plate of shape is connected across between adjacent two section split beam a1-1, split beam b1-3, split beam a1-1, split beam b1-3 seam
Connect, the blind end of u shaped connector offers some installing holes, split beam a1-1, split beam b1-3 correspond to u shape and connect
The installing hole that the blind end of plate is opened up is provided with corresponding connecting hole, can be by split beam a1-1, split beam b1- using bolt
3 splicings are integral.
Figure 20-21 specifically discloses the structural representation of main suspension centre of the present invention, and this main suspension centre includes u shape structure
Draw-in groove 27-2 is accordingly offered, for the upper side wing of clamping girder on two side arms of 27-1, u shape structure 27-1；Meanwhile,
Two side arms of u shape structure 27-1 open up through connecting hole 27-3, for installing lifting appliance；It follows that the present invention is led to
Cross the wing plate socket on the downside of girder by u shape structure 27-1, realize the connection of main suspension centre and girder, and pass through draw-in groove 27-2 to master
The clamping of side wing on beam, can consolidate positioning on girder for the main suspension centre further, and preventing is in the drawstring at 45 ° of inclination angles with girder
Pulling draws suspension centre to move on girder.
Figure 22 specifically discloses the structural representation drawing suspension centre of the present invention, including draw-in groove 22-1 and reinforcement column
The t-shaped shape of 22-2, described draw-in groove 22-1, the crosspiece part draw-in groove of this t shape draw-in groove 22-1 clamping can live a flank of auxiliary girder
Plate, and the vertical section part draw-in groove of t shape draw-in groove 22-1 can clamp the web of auxiliary girder；Strengthen column 22-2 dorsad t shape
The crosspiece part of draw-in groove extends and is formed, and it is fixing with folded beam 35, so that folded beam, auxiliary girder pass through to strengthen column 22-2
Suspension centre is drawn to define triangular connection structure.
Figure 23 specifically discloses the concrete structure of springboard of the present invention, and described springboard is m shape springboard, including springboard
Platform 12-1 and be arranged at the supporting construction below springboard platform 12-1；The cross section of described springboard platform 12-1 is in isosceles ladder
Shape is arranged, and supporting construction is arranged on the small end of aforementioned isosceles trapezoid shape springboard platform 12-1, and isosceles trapezoid shape springboard platform
The big end width of 12-1 is l, is highly c；Described supporting construction includes being arranged on first at springboard platform 12-1 medium position
Supporting construction 12-4, the both sides of the first supporting construction 12-4 are symmetrically provided with the second supporting construction 12-3, the 3rd supporting construction
12-1, the 3rd supporting construction 12-1 is arranged at the end position of springboard platform 12-1, and the second supporting construction 12-3 is then located at
Between first supporting construction 12-4, the 3rd supporting construction 12-1；Wherein: the first described supporting construction 12-4, in first
Layer arm, the first outer layer arm；First internal layer arm, the cross section of the first outer layer arm are isosceles trapezoid shape, the first internal layer
Arm is socketed in the inner chamber of the first outer layer arm, and the center line of the first internal layer arm, the first outer layer arm overlaps；Described second
Supporting construction 12-3, including the second internal layer arm, the second outer layer arm；Second internal layer arm, the cross section of the second outer layer arm
It is isosceles trapezoid shape, the second internal layer arm is socketed in the inner chamber of the second outer layer arm, and the center of the second internal layer arm is relatively
Offset to the center position of springboard in the center of the second outer layer arm；Described the first supporting construction 12-4, described second
The big end of supporting construction 12-3 is all connected with springboard platform 12-1；The 3rd described supporting construction 12-1, section is in a rectangular trapezoid
Shape is arranged, and its beveled end is connected with springboard platform 12-1.
The inclination angle of described isosceles trapezoid shape springboard platform 12-1 is 60-65 °.Described first internal layer arm, the first outer layer prop up
Pipe, the second internal layer arm, the second outer layer arm inclination alpha all consistent, value is between 70-80 °.First internal layer arm oblique
The inner side hypotenuse of spacing, the inner side hypotenuse of the second internal layer arm and the second internal layer arm between side and the first outer layer arm hypotenuse
Between spacing, be designated as b, value be 1-2mm；The outside hypotenuse of the outside hypotenuse of the second internal layer arm and the second internal layer arm it
Between spacing, be designated as d, value be 3-4mm.Spacing between the base of the first internal layer arm and the first outer layer arm base,
Spacing between the base of two internal layer arms and the second outer layer arm base, is designated as e, and value is 1-2mm；First supporting construction,
The width of the second supporting construction bottom, is designated as f, and value is 13-16mm；The width of the 3rd supporting construction is a, and value is 7-
10mm.
The advantage that the present invention adopts m shape springboard:
Mechanics Performance Testing:
Original springboard, the supporting mechanism that it has is rectangular-shaped column.
Conclusion:
By above analysis, " m " type springboard decreases 9%, and maximum distortion with respect to original springboard gross weight
Also decrease to some degree, comparatively also safer.It follows that the present invention not only can reduces cost, Er Qiean
Full property there has also been larger raising.
In addition, the invention also discloses a kind of Welded method, can be used for connecting in clamp, the first clamp and the
Welding between two clamps；Can be used in folding joint, between riser a and the second chute, between riser b and the 3rd chute
Welding；Can be used in elastic spacing wheel mechanism, track base, guide rail sleeve pass through to be welded and fixed, the weldering between track base, guide rail sleeve
Connect；Can be used in fence bearing, the welding between the back of the end face of fence connecting tube and fence seat chute.
Strengthen handling process including cleaning, pre-heating technique, welding procedure and postwelding, wherein:
First, cleaning
The present invention mainly uses oxide and the greasy dirt that chemical method clears up Al alloy parts surface to be welded；Specifically
The reagent being related to has ethanol, the ph value alkalescence cleaning solution for 11-13；Wherein: it is inclined that alkalescence cleaning solution includes component
Sodium silicate, sodium citrate and sodium bicarbonate, the quality proportioning of sodium metasilicate, sodium citrate and sodium bicarbonate three is (10-
16):(2-4):(20-25).
During use, first adopt alcohol wipe Al alloy parts to be welded surface, to remove Al alloy parts surface to be welded
Greasy dirt, then use clear water cleaning after, then using prepared above alkalescence cleaning solution clean out aluminium alloy work to be welded
The oxide on part surface, after finally adopting clean water, is dried.
Specifically, the Al alloy parts to be welded through alcohol wipe are immersed in 50-60 DEG C of alkalescence cleaning solution
Soak more than 10 minutes, take out workpiece cold water flush the residue removing on surface of the work, at 80 DEG C, then dry 30
Minute.
2nd, pre-heating technique
Using induction heating equipment, workpiece is preheated to after 150-200 DEG C, will be tight for workpiece to be welded using rigid fixture
Gu on welding bench, to control welding deformation.
The high-termal conductivity feature having in view of aluminum alloy material, rigid fixture of the present invention, the chuck having, adopt
Use insulation material composite plate, including fixed plate, adiabator plate and clamping plate, adiabator plate be pressed on fixed plate and clamping plate it
Between, fixed plate is arranged on fixture, and clamping plate then clamps Al alloy parts, and adiabator plate can select asbestos cystosepiment；
It follows that one aspect of the present invention can be realized and the rigidly fixing of workpiece, prevent workpiece because of expanded by heating in welding process
Deformation；On the other hand, due to configuring asbestos cystosepiment, insulation in the weld seam molten bath between the bevel for welding of two workpiece can be made
Time is long, is less prone to incomplete fusion and lack of penetration pore and seminess；Effectively solving pore and Inclusion Problem.
3rd, welding procedure
The present invention carries out soldering using Variable Polarity tig welding machine to workpiece.Specifically, comprise the following steps:
Use aluminium alloy 6061 material in view of Al alloy parts of the present invention, normally, more conventional
Welding wire uses er5356, and adopts the weld metal after the welding of er5356 welding wire, and the hot-cracking resistance intensity having is not high, and
Another kind of welding wire er4043 recommending although having preferable hot-cracking resistance, but, due to its gold alloy solder for siliceous 5%
Silk, therefore, in welding process, can form mg2Si, thus affecting plasticity and the intensity of weld metal, in addition, er4043 welding wire
Weld metal there is metachromatism.
The weld metal of the present invention includes 5 layers, respectively bottoming layer, middle layer and cap weld, wherein: bottoming
Layer and cap weld adopt same welding wire er5356, include 2 layers respectively, and middle layer then adopts er4043 welding wire, tool
The technological parameter of body is as follows:
Ground floor adopts er5356 welding wire, and electric current range of accommodation is 250-290a, current polarity is using exchange, protective gas
Using 100%ar (purity >=99.99%)；Gas flow is 10 ± 3 liters/min.
When ground floor face of weld temperature is reduced to 220 DEG C, carry out second layer welding, the second layer adopts er5356 to weld
Silk, electric current range of accommodation is 250-290a, and current values during second layer welding are more than current values when ground floor welds；
Current polarity adopts 100%ar (purity >=99.99%) using exchange, protective gas；Gas flow is 10 ± 3 liters/min.
When second layer face of weld temperature is reduced to 230 DEG C, carry out third layer welding, third layer adopts er4043 to weld
Silk, electric current range of accommodation be 250-290a, current polarity using exchange, protective gas adopt 100%ar (purity >=
99.99%)；Gas flow is 10 ± 3 liters/min.
When third layer face of weld temperature is reduced to 220 DEG C, carry out the 4th layer of welding, the 4th layer adopts er5356 weldering
Silk, electric current range of accommodation is 250-290a, and the current values one when current values during the 4th layer of welding are welded with the second layer
Cause；Current polarity adopts 100%ar (purity >=99.99%) using exchange, protective gas；Gas flow is 10 ± 3 liters/min
Clock；
Treat that the 4th layer of face of weld temperature is reduced to the preheating temperature of Al-alloy parts or the pre- of slightly above Al alloy parts
During hot temperature, carry out layer 5 welding, layer 5 adopts er5356 welding wire, electric current range of accommodation is 250-290a, and layer 5
Current values when current values during welding are welded with ground floor are consistent；Current polarity is adopted using exchange, protective gas
100%ar (purity >=99.99%)；Gas flow is 10 ± 3 liters/min；
The present invention, when carrying out welding procedure operation, carries out multilamellar welding by selecting different types of welding wire, to improve
Select the mechanical property defect that a kind of welding wire welding has；In addition, the present invention welds also by the weld metal in intermediate layer both sides
When connecing, using symmetrically arranged technological parameter (ground floor is consistent with layer 5, and the second layer and the 4th layer are consistent) so that weld seam is golden
Belonging in interlayer is symmetric construction, effectively improves the mechanical property of welded unit.
4th, postwelding strengthens handling process
Immediately heat treatment is carried out to 6106 aluminium alloy weldments using the box atmosphere furnace of hmx1100-30a after the completion of welding.Tool
Body process is as follows:
The first step, solution treatment.The firing rate of stove is set to 10-15 DEG C/min, after being heated to 450-520 DEG C, will
Substantially the weldment being cooled to room temperature is put in heating furnace, is incubated 30min.Take out after the completion of insulation, put into rapidly water cooling pond (room temperature
20-25 DEG C) in make Quenching Treatment, be cooled to room temperature, workpiece produce from stove to water cooling pond time be less than 1 minute；
Second step: the workpiece weld after cold water is cooled down is placed in cryogenic treatment apparatus, with the speed of (10-15) DEG C/min
After rate is rapidly cooled to -80～-110 DEG C, maintain half an hour, then slowly cool to -140～-160 with (3-6) DEG C/min speed
After DEG C, maintain half an hour, finally (- 190) DEG C are slowly cooled to the speed of 1-1.5 DEG C/min, maintain 2 hours, knot
Bundle subzero treatment process.
3rd step, the workpiece processing through cryogenic treatment apparatus is put into heating and heat-insulating device, with (1-3) DEG C/min's
After speed is slowly heated to (80-90) DEG C, maintain half an hour, then be brought rapidly up to 200-220 with the speed of (10-15) DEG C/min
After DEG C, it is incubated 1 hour；
4th step, taking-up workpiece, are cooled to room temperature.
Hardness using hva-10a Vickers butt joint measures (ram load selection 5kg, testing standard gb/
T2654-2008), understand that as-welded average hardness value commissure is about 75.6hv by measurement result analysis, heat affected area is about
85.2hv, through the heat treatment of postwelding, hardness Distribution value tends to uniform, meansigma methodss have reached 90.5hv, about mother metal hardness
98% (mother metal hardness is 95hv)
(testing standard is gb/t2649-1989, gb/t2651- to carry out tensile property test using ydl-2000 Universal motor
2008), as shown in the table.
Note: 101/102/103 represents mother metal, 201/202/203 represents as-welded, 301/302/303 representative process state
The tensile strength that experimental result from above can be seen that 6061 aluminium alloy mother metals has reached 276mpa, percentage elongation
For 12%, there is good intensity and plasticity；
Although the present invention is all taken into full account in matting, preheating procedure and welding sequence, final
In weld metal zone, tensile strength has 232mpa, is equivalent to the 84.06% of mother metal, percentage elongation for the welding point tension failure position arrived
Decrease, only 6.4% it is seen that during tig melting welding joint tensile strength declined, this is soft with what hardness test result occurred
Change phenomenon to be consistent, and plasticity has also declined；
Process state joint breaking position also in weld metal zone, test specimen rift direction is almost vertical with face of weld, tensile strength
Reach 264mpa, be equivalent to mother metal 95.65%, percentage elongation is 10.5%, and joint tensile strength is recovered very well, and plasticity is relatively welded
Joint has also recovered.Welding post processing recovers to the intensity of 6016 welded joints in aluminium alloys and plasticity recover all to have very big
Help, disclosure satisfy that the requirement of use.
Claims (10)
1. the connection clamp at a kind of I-beam decussation, is in I-beam a at the position that intersects vertically, I-shaped for connecting
Beam b；It is characterized in that: include a bending plate, described bending plate has two clamps that section is located on differing heights, is respectively
First clamp and the second clamp, one group of outward flange downward bending being parallel to each other of described first clamp forms the first chute, institute
State and be slidably matched between the first chute and the wing plate of I-beam a, the back of described first chute has towards the direction of I-beam b
Second clamp, the second clamp is parallel with the wing plate of I-beam b；It is equipped with bolt round on described first clamp and the second clamp,
By connecting bolt equipped in the bolt round on the first clamp so that the first clamp is fixed with I-beam a phase, by the
In bolt round on two clamps, equipped connecting bolt is so that be fixed between I-beam b and I-beam a.
2. the connection clamp at I-beam decussation according to claim 1 it is characterised in that: described first chute the back of the body
Portion is connected with the second clamp by the cambered surface of indent.
3. the connection clamp at I-beam decussation according to claim 2 it is characterised in that: described bending plate adopts
What a356 aluminium alloy was made is integrally formed part.
4. the connection clamp at I-beam decussation according to claim 2 it is characterised in that: described bending plate adopts
6061 aluminium alloys are made, and are connected by welding manner between the first clamp and the second clamp；Between first clamp, the second clamp
Welding procedure be: include cleaning, pre-heating technique, welding procedure and postwelding strengthen handling process, wherein:
First, cleaning
Soak 10 minutes in alkalescence cleaning solution Al alloy parts to be welded through alcohol wipe being immersed 50-60 DEG C
More than, take out workpiece cold water flush the residue removing on surface of the work, then dry 30 minutes at 80 DEG C；Alkalescence
Cleaning solution includes component sodium metasilicate, sodium citrate and sodium bicarbonate, sodium metasilicate, sodium citrate and sodium bicarbonate three
The quality proportioning of person is (10-16): (2-4): (20-25)；The ph value that alkalescence clears up solution is 11-13；
2nd, pre-heating technique
Using induction heating equipment, workpiece is preheated to after 150-200 DEG C, using rigid fixture, work piece to be welded is existed
On welding bench；
Described rigid fixture, the chuck having, using insulation material composite plate, including fixed plate, adiabator plate and folder
Plate, adiabator plate is pressed between fixed plate and clamping plate, and fixed plate is arranged on fixture, and clamping plate then clamps aluminium alloy work
Part, adiabator plate selects asbestos cystosepiment；
3rd, welding procedure
Weld metal includes 5 layers, respectively bottoming layer, middle layer and cap weld, wherein: bottoming layer and cosmetic welding
Layer, using same welding wire er5356, includes 2 layers respectively, and middle layer then adopts er4043 welding wire, specific technological parameter
As follows:
Ground floor adopts er5356 welding wire, and electric current range of accommodation is 250-290a, current polarity is using exchange, protective gas employing
100% ar(purity >=99.99%)；Gas flow is 10 ± 3 liters/min；
When ground floor face of weld temperature is reduced to 220 DEG C, carry out second layer welding, the second layer adopts er5356 welding wire, electricity
Stream range of accommodation is 250-290a, and current values during second layer welding are more than current values when ground floor welds；Electric current
Polarity adopts 100% ar(purity >=99.99% using exchange, protective gas)；Gas flow is 10 ± 3 liters/min；
When second layer face of weld temperature is reduced to 230 DEG C, carry out third layer welding, third layer adopts er4043 welding wire, electricity
Stream range of accommodation is 250-290a, current polarity adopts exchange, and protective gas adopts 100% ar(purity >=99.99%)；Gas
Body flow is 10 ± 3 liters/min；
When third layer face of weld temperature is reduced to 220 DEG C, carry out the 4th layer of welding, the 4th layer adopts er5356 welding wire, electricity
Stream range of accommodation is 250-290a, and current values when current values during the 4th layer of welding are welded with the second layer are consistent；Electricity
Stream polarity adopts 100% ar(purity >=99.99% using exchange, protective gas)；Gas flow is 10 ± 3 liters/min；
Treat that the 4th layer of face of weld temperature is reduced to the preheating temperature of Al-alloy parts or the preheating temperature of slightly above Al alloy parts
When spending, carry out layer 5 welding, layer 5 adopts er5356 welding wire, electric current range of accommodation is 250-290a, and layer 5 welding
When current values when welding with ground floor for the current values consistent；Current polarity adopts 100% using exchange, protective gas
Ar(purity >=99.99%)；Gas flow is 10 ± 3 liters/min；
4th, postwelding strengthens handling process
The first step, solution treatment: the firing rate of stove is set to 10-15 DEG C/min, after being heated to 450-520 DEG C, will be basic
The weldment being cooled to room temperature is put in heating furnace, is incubated 30min；Take out after the completion of insulation, put into rapidly water cooling pond (room temperature 20-
25 DEG C) in make Quenching Treatment, be cooled to room temperature, workpiece produce from stove to water cooling pond time be less than 1 minute；
Second step: the workpiece weld after cold water is cooled down is placed in cryogenic treatment apparatus, fast with the speed of (10-15) DEG C/min
After speed is cooled to -80～-110 DEG C, maintain half an hour, then slowly cool to after -140～-160 DEG C with (3-6) DEG C/min speed,
Maintain half an hour, finally (- 190) DEG C are slowly cooled to the speed of 1-1.5 DEG C/min, maintain 2 hours, terminate deep cooling
Processing procedure；
3rd step, the workpiece processing through cryogenic treatment apparatus is put into heating and heat-insulating device, with the speed of (1-3) DEG C/min
After being slowly heated to (80-90) DEG C, maintain half an hour, then be brought rapidly up to 200-220 DEG C with the speed of (10-15) DEG C/min
Afterwards, it is incubated 1 hour；
4th step, taking-up workpiece, are cooled to room temperature.
5. the connection clamp at I-beam decussation according to claim 1 it is characterised in that: described first clamp and
The bolt round that second clamp is provided with all includes two bolts hole.
6. a kind of boiler hearth overhauling platform, including main platform body and lifting appliance；Described main platform body, including girder,
Auxiliary girder, folded beam, spacing beam and springboard beam, and in the periphery of main platform body tiling springboard, the inner ring of springboard is fitted with fence；
Fence is arranged in main platform body by fence bearing；Girder realizes both intersect vertically with auxiliary girder by being connected clamp；Folding
Stoplog realizes foldable connection by folding joint and auxiliary girder；It is characterized in that, described connection clamp includes a bending plate, described
Bending plate has two clamps that section is located on differing heights, is the first clamp and the second clamp respectively, described first clamp
One group of outward flange downward bending of being parallel to each other form the first chute, slide between described first chute and the wing plate of girder and join
Close, the back of described first chute has the second clamp towards the direction of auxiliary girder, and the second clamp is parallel with the wing plate of auxiliary girder；Described
It is equipped with bolt round on first clamp and the second clamp, by being equipped with connecting bolt in the bolt round on the first clamp,
First clamp is fixed with girder phase, by connecting bolt equipped in the bolt round on the second clamp so that auxiliary girder with
It is fixed between girder.
7. boiler hearth overhauling platform according to claim 6 is it is characterised in that auxiliary girder and girder are in the second clamp bolt
Between the two neighboring bolt hole of round, it is provided with foil gauge.
8. boiler hearth overhauling platform according to claim 6 is it is characterised in that described springboard is m shape springboard, including
Springboard platform and be arranged at the supporting construction below springboard platform；The cross section of described springboard platform sets in isosceles trapezoid shape
Put, supporting construction is arranged on the small end of aforementioned isosceles trapezoid shape springboard platform；Described supporting construction includes being arranged on springboard platform
The first supporting construction at medium position, the both sides of the first supporting construction are symmetrically provided with the second supporting construction, the 3rd support
Structure, the 3rd supporting construction is arranged at the end position of springboard platform, and the second supporting construction then be located at the first supporting construction,
Between 3rd supporting construction；Wherein:
The first described supporting construction, including the first internal layer arm, the first outer layer arm；First internal layer arm, the first outer layer prop up
The cross section of pipe is isosceles trapezoid shape, and the first internal layer arm is socketed in the inner chamber of the first outer layer arm, and the first internal layer arm,
The center line of the first outer layer arm overlaps；
The second described supporting construction, including the second internal layer arm, the second outer layer arm；Second internal layer arm, the second outer layer prop up
The cross section of pipe is isosceles trapezoid shape, and the second internal layer arm is socketed in the inner chamber of the second outer layer arm, and the second internal layer arm
Center with respect to the second outer layer arm center position from center to springboard skew；
The first described supporting construction, the big end of the second described supporting construction are all connected with springboard platform；
The 3rd described supporting construction, section shape in a rectangular trapezoid is arranged, and its beveled end is connected with springboard platform.
9. boiler hearth overhauling platform according to claim 8 it is characterised in that described first internal layer arm, outside first
Layer arm, the second internal layer arm, the second outer layer arm inclination angle all consistent, value is between 70-80 °.
10. boiler hearth overhauling platform according to claim 8 is it is characterised in that the hypotenuse of the first internal layer arm and
Spacing between one outer layer arm hypotenuse is 1-2mm；Between the base of the base of the first internal layer arm and the first outer layer arm
Spacing is 1-2mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792389.7A CN106348216B (en) | 2016-08-31 | 2016-08-31 | A kind of connection snap-gauge at boiler hearth overhauling platform and its I-beam right-angled intersection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792389.7A CN106348216B (en) | 2016-08-31 | 2016-08-31 | A kind of connection snap-gauge at boiler hearth overhauling platform and its I-beam right-angled intersection |
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| CN106348216A true CN106348216A (en) | 2017-01-25 |
| CN106348216B CN106348216B (en) | 2018-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117923298A (en) * | 2024-03-22 | 2024-04-26 | 江苏海泰电力科技有限公司 | Maintenance platform for overhauling boiler furnace |
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| CN104533896A (en) * | 2014-11-14 | 2015-04-22 | 常州市盈顺电子有限公司 | A bending connecting plate |
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| US20050252161A1 (en) * | 2004-05-06 | 2005-11-17 | Hovey David Jr | Two-way architectural structural system and modular support member |
| CN2892786Y (en) * | 2006-04-30 | 2007-04-25 | 张方成 | Cross steel I-beam connecting device |
| CN201574034U (en) * | 2010-01-19 | 2010-09-08 | 洛阳佳嘉乐农业产品开发有限公司 | Connection device for hoisting an I-shaped steel guide rail on an I-shaped steel cross beam |
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| CN117923298A (en) * | 2024-03-22 | 2024-04-26 | 江苏海泰电力科技有限公司 | Maintenance platform for overhauling boiler furnace |
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| CN106348216B (en) | 2018-08-17 |
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