CN206108838U - Boiler furnace maintenance platform and main hoisting point that has location reinforcing structure thereof - Google Patents
Boiler furnace maintenance platform and main hoisting point that has location reinforcing structure thereof Download PDFInfo
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- CN206108838U CN206108838U CN201621009946.5U CN201621009946U CN206108838U CN 206108838 U CN206108838 U CN 206108838U CN 201621009946 U CN201621009946 U CN 201621009946U CN 206108838 U CN206108838 U CN 206108838U
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- chute
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Abstract
The utility model discloses a boiler furnace maintenance platform and main hoisting point that has location reinforcing structure thereof, this main hoisting point includes the U -shaped structure, and the blind end of U -shaped structure can be laminated with the downside pterygoid lamina of H -beam, and offers the pterygoid lamina draw -in groove that is used for joint H -beam upside pterygoid lamina on two side arms correspondingly, and simultaneously, the connecting hole to wearing that is used for the installation to lift by crane equipment is offered to two side arms of U -shaped structure. Accordingly, the utility model discloses it is fixed with girder connecting portion bit position to guarantee to lift by crane equipment, prevents to lift by crane the in -process, and the equipment that lifts by crane takes place to remove on the girder.
Description
Technical field
This utility model is related 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.With rational in infrastructure, user
Just it is, safe and reliable, it is to obtain in current Thermal Power Generation Industry extensively the features such as high working efficiency, light labor intensity and short maintenance duration
Using approved product, be available for each portion maintenance in burner hearth to use, at home big-and-middle-sized power station is come into operation.Most Boiler Furnace
Thorax inspection platform, is all the platform structure frame assembled by steel connector using the I-shaped aluminium section bar of 2A12 materials, because
This, using the platform of this structure along with the springboard of surrounding laying, deadweight just can up to more than 4 tons.So for manufacturing enterprise
For, boiler hearth overhauling platform deadweight how is reduced, it is an important research direction of current burner hearth inspection platform development.For
Reduction inspection platform overall weight, in the case where cost is considered, selects light material aluminium alloy system connection inexpensively
Part is a kind of technological means that those skilled in the art will be readily apparent replacing steel connector, but, due to platform structure frame
It is a kind of space structure, including some horizontal I-shaped aluminium section bars and some longitudinal I-shaped aluminium section bars, each other by which kind of knot
The overlap joint of the aluminum coupling element of configuration formula and constitute an entirety, then need those skilled in the art to carry out after detailed research
Can determine that.In connection, dislocation, steering etc. are there may be between joint face, using integrally formed aluminum coupling element, for whole
The requirement of body formed technique can be higher, now, just may require that and weld aluminium section bar of different shapes to make using welding procedure
Required connector；And be also main points that this area needs to pay attention to for the welding quality of aluminium section bar, especially for making
For the connector of inspection platform, welding quality directly affects the security performance of product.Usually, inspection platform is to pass through
The driving of hoist engine, completes descending operation in boiler furnace；Because boiler furnace internal diameter is typically all tens meters, and overhaul flat
The Outside Dimensions of platform are almost matched with boiler furnace inner wall size, therefore, inspection platform area is excessively huge, in lifting process
Or in operation process, even if less skew, its periphery is likely to be touched with inboard wall of burner hearth by directive wheel；And existing lead
More fix to installation dimension of the wheel on inspection platform, it is substantially unadjustable, therefore, the pulley yoke of directive wheel is easily damaged,
Meanwhile, directive wheel is usually with the direct connected mode of inspection platform and is rigidly connected, therefore, touch with inboard wall of burner hearth in directive wheel
When, rocking for inspection platform is easily caused, affect the safety of inspection platform.
Utility model content
For above-mentioned technical problem, the utility model proposes a kind of main suspension centre of boiler hearth overhauling platform, ensure that
Lifting appliance is fixed with the position of girder connecting portion, and during preventing lifting, lifting appliance is moved on girder.
In order to realize above-mentioned technical purpose, this utility model is adopted the following technical scheme that：
There is the main suspension centre of positioning enhancing structure, including U-shaped structure in a kind of boiler hearth overhauling platform, U-shaped structure
Blind end can fit with the lower side wing of I-beam, and accordingly offer on two side arms for flank on clamping I-beam
The wing plate draw-in groove of plate, meanwhile, two side arms of U-shaped structure open up the through connecting hole for installing lifting appliance.
Another technical purpose of the present utility model is to provide a kind of boiler hearth overhauling platform, including main platform body and rises
Hang equipment；Described main platform body, including girder, auxiliary girder, folded beam, spacing beam and springboard beam, and in the outer of main platform body
Week tiling springboard, the inner ring of springboard is fitted with fence；Fence is arranged in main platform body by fence bearing；Girder leads to auxiliary girder
Cross connection clamp and realize both intersect vertically；Folded beam realizes foldable connection by folding joint and auxiliary girder；Lifting appliance
It is arranged on girder by main suspension centre, it is characterised in that the main suspension centre includes U-shaped structure, including blind end and two side arms,
The blind end of U-shaped structure is fitted with the lower side wing of girder, and the upper side wing of girder is then connected to two side arms of U-shaped structure
In the upper wing plate draw-in groove for opening up correspondingly, the connecting hole that lifting appliance is opened up with two side arms of U-shaped structure is fixed.
Further improve as this utility model, the connection clamp includes a bending plate, and the bending plate has section
Two clamps on differing heights, are respectively the first clamp and the second clamp, and a group of first clamp is parallel to each other
Outward flange downward bending formed the first chute, be slidably matched between first chute and the wing plate of girder, it is described first slide
The back of groove has the second clamp towards the direction of auxiliary girder, and the second clamp is parallel with the wing plate of auxiliary girder；First clamp and
Bolt round is equipped with two clamps, by being equipped with connecting bolt in the bolt round on the first clamp so that the first clamp
Mutually fix with girder, by being equipped with connecting bolt in the bolt round on the second clamp so that compress between auxiliary girder and girder
It is fixed.
Further improve as this utility model, the first chute back is connected by the cambered surface of indent with the second clamp
Connect.
Further improve as this utility model, the surrounding of the main platform body is fitted with elastic spacing wheel mechanism.
Further improve as this utility model, elastic spacing wheel mechanism include position-limited wheel, pulley yoke, lead rail axis, spring,
Guide rail sleeve and track base；Wherein, position-limited wheel is connected to lead rail axis one end by pulley yoke, and the lead rail axis other end is socketed on guide rail
The inner chamber of set, and the spring is set between lead rail axis and guide rail sleeve, it is axially arranged with limit along guide rail sleeve on the wall of guide rail sleeve side
Position groove a, guiding parts is fixedly connected through after the stopper slot with the lead rail axis；The bottom connection guide rail of the guide rail sleeve
Seat, the track base has the chute that can be connected on a side wing of I-beam, and chute is provided with bolt hole, by connection
Bolt causes fixed between the track base and I-beam.
Further improve as this utility model, lead rail axis are hollow axle；Spring is placed in the inner chamber of lead rail axis, and spring
One end is fixed with pulley yoke, and the other end is then connected through after lead rail axis with guide rail sleeve.
Further improve as this utility model, the bending plate, track base, guide rail sleeve adopt 6061 aluminium alloy systems
Into, and track base, guide rail sleeve are by being welded and fixed, and are connected by welding manner between the first clamp and the second clamp.
Further improve as this utility model, the guiding parts is a connecting bolt.
Further improve as this utility model, the two neighboring bolt hole of auxiliary girder and girder in the second clamp bolt round
Between, it is provided with foil gauge.
According to above-mentioned technical scheme, relative to prior art, this utility model has following beneficial effect：
1st, this utility model develops a kind of main suspension centre, ensure that lifting appliance is consolidated with the position of girder connecting portion
Fixed, during preventing lifting, lifting appliance is moved on girder, while this utility model also has dismounting, assembling quick
It is convenient；
2nd, this utility model adopts the advantage of position-limited wheel
Due to the buffer structure that there is lead rail axis, spring and guide rail sleeve composition between position-limited wheel and platform so that spacing
Certain energy snubber is realized between wheel and I-beam, when directive wheel is touched with inboard wall of burner hearth, position-limited wheel is not result in
The technical problem that pulley yoke is damaged.
Description of the drawings
Fig. 1 is the front view of this utility model boiler hearth overhauling platform；
Fig. 2 is the side view of Fig. 1；
In Fig. 1, Fig. 2,1 is monolayer π word beams；2 is fence pipe；3 is bilayer π word beams；4 is springboard beam；5 are fence cross bar company
Fitting；6 is the double card button a between fence pipe and fence vertical rod；7 is spacing beam；8 is fence pole；9 is installed in enclosing
Double card button b between hurdle pipe and fence pole；10 is fence vertical rod；11 hang vertical rod to prop up；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 are fence
Pole socket；22 are drawing suspension centre；23 is auxiliary girder；24 is A2, A3, A4 beam；25 is fixed between springboard double end；26 is A1, A5, A6 beam；27
Based on suspension centre；28 are secondary suspension centre；29 is twin beams connector；30 hang vertical rod seat to prop up；31 is fence bearing；32 are 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 for 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 is that each two intersects attachment structure schematic diagram between I-beam；
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 views；
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 views；
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 is folded；
Figure 13 is the front view of spacing wheel apparatus in this utility model；
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 I-beam（By taking A beams as an example）The structural representation of splicing；
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 one direction of main suspension centre；
Figure 21 is the sectional view in main another direction of suspension centre；
In Figure 20-21：27-1, U-shaped structure；27-2, draw-in groove；27-3, connecting hole；
Figure 22 is the structural representation for drawing suspension centre；
In figure：22-1, draw-in groove；22-2, reinforcement column；
Figure 23 is the structural representation of springboard described in the utility model；
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 is the first internal layer
Spacing, the inner side hypotenuse of the second internal layer arm between the hypotenuse of pipe and the first outer layer arm hypotenuse is interior with the second internal layer arm
Spacing between skew back side；D is the spacing between the outside hypotenuse of the outside hypotenuse of the second internal layer arm and 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 this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole
Embodiment.It is below illustrative to the description only actually of at least one exemplary embodiment, never as to this practicality
New and its application or any restriction for using.Based on the embodiment in this utility model, those of ordinary skill in the art are not having
Have and make the every other embodiment obtained under the premise of creative work, belong to the scope of this utility model protection.Unless
Illustrate in addition, the part that otherwise illustrates in these embodiments and step it is positioned opposite.Expression formula and numerical value are not limited
Scope of the present utility model.Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not
It is to draw according to actual proportionate relationship.For technology, method and apparatus may known to person of ordinary skill in the relevant
It is not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered the part for authorizing description.
In all examples shown here and discussion, any occurrence should be construed as merely exemplary, not as limit
System.Therefore, the other examples of exemplary embodiment can 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 such as a device or feature shown in the figure and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
To be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation).
As shown in Figure 1 and Figure 2, as shown in Figure 1 and Figure 2, it discloses boiler hearth overhauling platform described in the utility model
Structural representation, boiler hearth overhauling platform includes main platform body and lifting appliance；Described main platform body, generally includes
Girder, auxiliary girder, folded beam 35, spacing beam 7 and springboard beam 4, and main platform body periphery tile springboard 12, springboard 12 it is interior
Circle is fitted with fence；Fence is arranged in main platform body by fence bearing 31；Girder realizes two with auxiliary girder by being connected clamp
Person's intersects vertically；Folded beam 35 realizes foldable connection by folding joint 20 and auxiliary girder；Springboard beam 4 is also by connecting card
Plate is arranged on two auxiliary girders in outside.Described girder, auxiliary girder, including some sections of split beams, adjacent two sections points
Body beam a, split beam b are spliced by joint clamp.
In accompanying drawing, B1-B11 beams are auxiliary girder；A1-A6 beams are girder；C1-C11 beams are folded beam 35；D1, D2 are
Spacing beam 7, wherein：
Girder has two classes, and a class is monolayer π word beams, another kind of, is double-deck π words beam, and A1, A5, A6 are monolayer π word beams,
A2, A3, A4 are double-deck π words beams；Certainly, girder can also select I-beam；Spacing beam D1, D2 be periodically installed at girder A2,
Between A3；Auxiliary girder, folded beam select 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 intersects vertically with auxiliary girder, and at the place of intersecting vertically by connection clamp connection.
In two girders of end, i.e. 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, multiple main suspension centres 27 are installed on particularly beam A2, A4；And just
In the folding or expansion of folded beam 35, then some drawing suspension centres 22 are provided with the auxiliary girder for installing folded beam.
Fig. 3-Fig. 6 disclose in detail the connection clamp at a kind of I-beam decussation, and for connection vertical phase is in
I-beam A140, the I-beam B150 at position, wherein I-beam A140 is handed over to be girder, I-beam B150 can be pair
Beam, certain both can also exchange；The connection clamp includes a bending plate, and there is the bending plate section to be located on differing heights
Two clamps, be respectively the first clamp 110 and the second clamp 120, one group of outside being parallel to each other of first clamp 110
Edge downward bending forms the first chute 1101, is slidably matched between first chute 1101 and the wing plate of I-beam A140, institute
The back for 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；Bolt round is equipped with the clamp 120 of first clamp 110 and second, by the first clamp 110
On bolt round in be equipped with connecting bolt so that the first clamp 110 is fixed with I-beam A140 phases, by the second clamp
Connecting bolt is equipped with bolt round on 120 so that be fixed between I-beam B150 and I-beam A140.
To prevent accident after clamp connection loosens from occurring, this utility model I-beam A140, I-beam B150 are in the second card
Between the two neighboring bolt hole of the bolt round of plate 120, foil gauge is provided with.By arranging foil gauge on the second clamp 120,
So as to realize carrying out real-time detection to the contact pressure between the second clamp 120 and I-beam.
The back of first chute 1101 is connected by the cambered surface of indent with the second clamp 120.The bending plate is adopted
Part is integrally formed made by A356 aluminium alloys.Be equally after I-beam is connected made by aluminum alloy materials, compared to existing
For having steel structure platform, weight mitigates significantly.The bending plate may not be and be integrally formed part, now using 6061-T6
Make, and connected by welding manner between the first clamp 110 and the second clamp 120.
Used as further improvement of the utility model, I-beam B150 and I-beam A140 is arranged in the bolt of the second clamp 120
Between the two neighboring bolt hole in hole, foil gauge is provided with.It is right so as to realize by arranging foil gauge on the second clamp 120
Contact pressure between second clamp 120 and I-beam carries out real-time detection, and accident occurs after preventing clamp connection from loosening.
When above-mentioned connection clamp is used at the girder of inspection platform described in the utility model and auxiliary girder crossover location, will
Above-mentioned I-beam A140 is set to girder, and I-beam B150 is set to auxiliary girder, now, between the first chute 1101 and the wing plate of girder
It is slidably matched, the back of first chute 1101 has the second clamp 120, the second clamp 120 and pair towards the direction of auxiliary girder
The wing plate of beam is parallel；When then installing, by being equipped with connecting bolt in the bolt round on the first clamp 110 so that the first card
Plate 110 is mutually fixed with girder, by being equipped with connecting bolt in the bolt round on the second clamp 120 so that auxiliary girder and girder
Between be fixed.
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, the folding or expansion between I-beam C240, I-beam D350 can be realized, including hinged first axle connects
Fishplate bar 210 and second hinge connecting plate 310；The first axle connecting plate 210 has the wing plate slip company with I-beam C240
The second chute 2101 for 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 webs end splice two clamping plates 3102；Two described clamping plates
3102 set up the both sides at I-beam C240, I-beam D350 webs end splicing seams position separately, meanwhile, second chute
2101st, the bolt being provided with the 3rd chute 3101 and two clamping plates 3102 on bolt connecting hole, and two clamping plates 3102
Connecting hole is mating hole；By being equipped with connecting bolt in the bolt connecting hole of the second chute 2101, the first axle is connected
Fishplate bar 210 is mutually fixed with the wing plate of I-beam C240；By being equipped with connecting bolt in the bolt connecting hole of the 3rd chute 3101,
To mutually fix between the second hinge connecting plate 310 and I-beam D350；By the bolt connection on two clamping plates 3102
Connecting bolt is equipped with hole, the web end of I-beam C240 and the web end of I-beam D350 are spliced into integral.
Above-mentioned I-beam C240, I-beam D350 is specific on inspection platform described in the utility model, it is known that I-shaped
Beam C240 is auxiliary girder, and I-beam D350 is folded beam.
Used as one preferred embodiment of this utility model folding joint, second chute 2101 is connected by first axle
The both sides of the edge of plate 210 bend downwards and are formed.
As a preferred embodiment of this utility model folding joint, two sides of the second hinge connecting plate 310
Edge is bent to form downwards after second chute 2101, continues to bend to form the L-shaped clamping plate 3102 of two opposite arrangements.
As one preferred embodiment of this utility model folding joint technical scheme, the bolt opened up on the clamping plate 3102
Connecting hole has 6, wherein three bolt connecting holes in equilateral triangle be arranged in the web end of I-beam C240 just to
The plate face of clamping plate 3102, it is just right with the web end of I-beam D350 that remaining three bolt connecting holes are also arranged in equilateral triangle
The plate face of clamping plate 3102.
As one preferred embodiment of this utility model folding joint technical scheme, in described L-shaped clamping plate 3102, with
At the position that three chutes 3101 flanging positioned opposite and the side adjacent with first axle connecting plate 210 cross, there is one
The unfilled corner of individual right angled triangle.
As one preferred embodiment of this utility model folding joint technical scheme, the back side of second chute 2101 to
On be provided with one piece have hinge hole a riser a；The back side up of 3rd chute 3101 is provided with a hinge seat, institute
The hinge seat stated 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 riser a
On hinge hole a and two riser b on hinge hole b be mating hole；By the hinge on the hinge hole a on riser a and two riser b
Connect in the b of hole and bearing pin is installed, first axle connecting plate 210, second hinge connecting plate 310 is hinged.
As one preferred embodiment of this utility model folding joint technical scheme, first axle connecting plate 210 and second
Hinge connecting plate 310 is made using 6061-T6 aluminium alloys；And stood by being welded and fixed between riser a and the second chute 2101
Also by being welded and fixed between plate b and the 3rd chute 3101；Between riser a and the second chute 2101, riser b and the 3rd chute
It is welded and fixed between 3101.If if one product, can be made using A356 aluminium alloys.
Above-mentioned folding joint is applied to into inspection platform described in the utility model, described I-beam C can be set to
Auxiliary girder, I-beam D is set to folded beam 35, and now, the first axle connecting plate 210 has and is slidably connected with the wing plate of auxiliary girder
Second chute 2101；Second hinge connecting plate 310 has the 3rd chute 3101 and energy being slidably connected with the wing plate of folded beam
Enough two clamping plates 3102 for splicing auxiliary girder, folding web end；Two described clamping plates 3102 set up separately in auxiliary girder, folded beam
Both sides at the splicing seams position of web end, meanwhile, on second chute 2101, the 3rd chute 3101 and two clamping plates 3102
The bolt connecting hole being provided with bolt connecting hole, and two clamping plates 3102 is mating hole；By in the second chute 2101
Connecting bolt is equipped with bolt connecting hole, the first axle connecting plate 210 and the wing plate of auxiliary girder are mutually fixed；By the 3rd
Connecting bolt is equipped with the bolt connecting hole of chute 3101, will mutually be fixed between the second hinge connecting plate 310 and folded beam；
By being equipped with connecting bolt in the bolt connecting hole on two clamping plates 3102, by the web end of auxiliary girder and the web of folded beam
End splicing is integral.
It is the utility model discloses a kind of elastic spacing wheel mechanism including position-limited wheel 321, sliding referring to shown in Figure 13 ~ Figure 14
Wheel carrier 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
Pulley yoke 323 is connected to the one end of lead rail axis 324, and the other end of lead rail axis 324 is socketed on the inner chamber of guide rail sleeve 327, and lead rail axis
The spring 325 is set between 324 and guide rail sleeve 327, stopper slot is axially arranged with along guide rail sleeve 327 on the side wall of guide rail sleeve 327,
One guiding parts is fixedly connected through after the stopper slot with the lead rail axis 324；The bottom 328 of the guide rail sleeve 327 connects
Track base 329, the track base 329 has the chute that can be connected on a side wing of I-beam, and chute is provided with bolt
Hole, is caused fixed between the 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
Fix with pulley yoke 323, the other end is then connected through after lead rail axis 324 with guide rail sleeve 327.
Further, the guiding parts 326 is a guide blot.
Further, in order to further mitigate the weight after platform is connected, the track base 329, guide rail sleeve 327 are selected
Made with 6016-T6 aluminum alloy materials；And track base 329, guide rail sleeve 327 are by being 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 so that realize 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 is damaged
Art problem.
Referring to shown in Figure 15 ~ Figure 17, the utility model discloses a kind of fence bearing, for fence to be arranged on into platform master
On body, it is connected with the I-beam on the outside of main platform body, is mostly installed at B beams（Auxiliary girder）And C beams（Folded beam）On；It is described
Fence bearing includes fence seat clamp 31-1 and fence connecting tube 31-2；The fence seat clamp 31-1 has and the I-beam wing
The fence seat chute 31-1a that plate coordinates, on the fence seat chute 31-1a bolt hole is offered, by matching somebody with somebody load in bolt hole
Connecting bolt, fence seat clamp 31-1 is arranged on I-beam；The back ofs the body of the fence seat clamp 31-1 in fence seat chute 31-1a
Portion's 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
The inner tubal wall draw-in groove 31-2b that 31-1b coordinates, and the outer tube wall of fence connecting tube 31-2 be then provided with it is some uniform with anti-skidding
The outer tube wall draw-in groove 31-2a of effect；Fence connecting tube 31-2 is by inner tubal wall draw-in groove 31-2b and fence seat card adapter plate 31-1b
Coordinate, installed in the back side of fence seat chute 31-1a.Fence includes fence pipe, fence vertical rod, stands installed in fence pipe and fence
Double card button a, fence pole between bar, the double card button b between fence pipe and fence pole；Wherein fence vertical rod passes through
Fastener 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 is made using 6061-T6 aluminium alloys.It is described to enclose
The end face of hurdle connecting tube 31-2 is welded and fixed with the back of fence seat chute 31-1a by welding procedure
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, joint clamp 1-2 is connecting plate of the section into U-shape, the U-shaped
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 seams
Connect, the blind end of U-shape connecting plate offers some installing holes, and split beam a1-1, split beam b1-3 correspond to U-shape connection
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 described in the utility model, and the main suspension centre is tied including U-shaped
Structure 27-1, accordingly offers draw-in groove 27-2, for the upper side wing of clamping girder on two side arms of U-shaped structure 27-1；Together
When, two side arms of U-shaped structure 27-1 open up through connecting hole 27-3, for installing lifting appliance；It follows that this practicality
The new wing plate socket by by U-shaped structure 27-1 from the downside of girder, realizes the connection of main suspension centre and girder, and passes through draw-in groove
Clampings of the 27-2 to side wing on girder, can further consolidate positioning of the main suspension centre on girder, prevent from inclining in 45 ° with girder
The drawstring at angle pulls suspension centre to move on girder.
Figure 22 specifically discloses the structural representation of drawing suspension centre described in the utility model, including draw-in groove 22-1 and reinforcement
Column 22-2, the draw-in groove 22-1 t shapes, the crosspiece part draw-in groove of T shape draw-in groove 22-1 can clamping live the one of auxiliary girder
Side wing, 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
The crosspiece part of shape draw-in groove extends and is formed, and reinforcement column 22-2 is fixed with folded beam 35, so that folded beam, auxiliary girder
Triangular connection structure is defined by drawing suspension centre.
Figure 23 specifically discloses the concrete structure of springboard described in the utility model, and described springboard is M shape springboards, including
Springboard platform 12-1 and the supporting construction being arranged at below springboard platform 12-1；The cross section of the springboard platform 12-1 in etc.
Waist trapezoidal 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
The big end width of platform 12-1 is L, is highly c；The supporting construction includes being arranged at springboard platform 12-1 medium positions
First 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 support
Structure 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
Between the first supporting construction 12-4, the 3rd supporting construction 12-1；Wherein：The first described supporting construction 12-4, including the
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 12-3, including the second internal layer arm, the second outer layer arm；The horizontal stroke of the second internal layer arm, the second outer layer arm
Section is isosceles trapezoid shape, and 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
Offset to the center position of springboard relative to the center of the second outer layer arm；It is described the first supporting construction 12-4, described
The big end of the second supporting construction 12-3 is connected with springboard platform 12-1；The 3rd described supporting construction 12-1, section is rectangular
Trapezoidal shape is arranged, and its beveled end is connected with springboard platform 12-1.
The inclination angle of the isosceles trapezoid shape springboard platform 12-1 is 60-65 °.The first internal layer arm, the first outer layer
Pipe, the second internal layer arm, the second outer layer arm inclination alpha it is consistent, value is between 70-80 °.First internal layer arm it is 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 is 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 is 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。
This utility model adopts the advantage of M shape springboards：
Mechanics Performance Testing：
| Model | Volume/mm3 | Maximum distortion/mm | Volume is with respect to decrement |
| It is original | 4.62×106 | 6.173×10-5 | / |
| " M " type | 4.205×106 | 6.009×10-5 | 9% |
Original springboard, the supporting mechanism that it has is rectangular-shaped column.
Conclusion：
Analysis by more than, " M " type springboard reduces 9%, and maximum distortion relative to original springboard gross weight
Decrease to some degree, it is comparatively also safer.It follows that this utility model not only can reduces cost, and
Safety 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 second welding between clamp；In can be used for folding joint, between riser a and the second chute, riser b and the 3rd chute it
Between welding；In can be used for elastic spacing wheel mechanism, track base, guide rail sleeve pass through to be welded and fixed, between track base, guide rail sleeve
Welding；Welding in can be used for fence bearing, between the end face of fence connecting tube and the back of fence seat chute.
Strengthen handling process including cleaning, pre-heating technique, welding procedure and postwelding, wherein：
First, cleaning
This utility model mainly uses the oxide and greasy dirt that chemical method clears up Al alloy parts surface to be welded；
Reagent specifically related to has the alkalescence cleaning solution that ethanol, pH value are 11-13；Wherein：Alkalescence cleaning solution includes group
Part sodium metasilicate, sodium citrate and sodium bicarbonate, the quality proportioning of sodium metasilicate, sodium citrate and sodium bicarbonate three is
（10-16）:（2-4）:（20-25）.
When using, first using alcohol wipe Al alloy parts surface to be welded, to remove Al alloy parts surface to be welded
Greasy dirt, then with clear water cleaning after, then using prepared above alkalescence cleaning solution clean out aluminium alloy work to be welded
The oxide on part surface, finally using clean water after, be dried.
Specifically, the alkalescence that 50-60 DEG C is immersed through the Al alloy parts to be welded of alcohol wipe is cleared up in solution
Immersion more than 10 minutes, takes out workpiece cold water flush and removes the residue on surface of the work, then dries 30 at 80 DEG C
Minute.
2nd, pre-heating technique
It is using rigid fixture that workpiece to be welded is tight after workpiece is preheated to into 150-200 DEG C using induction heating equipment
Gu on welding bench, to control welding deformation.
In view of the high-termal conductivity feature that aluminum alloy material has, rigid fixture described in the utility model, the folder having
Head, using insulation material composite plate, including fixed plate, adiabator plate and clamping plate, adiabator plate be pressed on fixed plate and
Between clamping plate, fixed plate is arranged on fixture, and clamping plate then clamps Al alloy parts, and adiabator plate can be steeped from asbestos
Foam plate；On the one hand it follows that this utility model can be realized being rigidly fixed with workpiece, prevent workpiece in welding process because
Expanded by heating deforms；On the other hand, due to configuring asbestos cystosepiment, melt can the weld seam between the bevel for welding of two workpiece
Temperature retention time is long in pond, is less prone to incomplete fusion and lack of penetration pore and seminess；Effectively solving pore and Inclusion Problem.
3rd, welding procedure
This utility model carries out soldering using variable polarity TIG welding machine to workpiece.Specifically, comprise the following steps：
The material of aluminium alloy 6061 is used in view of Al alloy parts described in the utility model, normally, more often
Welding wire uses ER5356, and adopts the weld metal after the welding of ER5356 welding wires, and the hot-cracking resistance intensity having is not
Height, and the welding wire ER4043 of another kind of recommendation, although with preferable hot-cracking resistance, but, due to the conjunction that it is siliceous 5%
Gold solder silk, therefore, in welding process, Mg can be formed2Si, so as to affect the plasticity and intensity of weld metal, in addition,
There is metachromatism in the weld metal of ER4043 welding wires.
Weld metal of the present utility model includes 5 layers, respectively bottoming layer, middle layer and cap weld, wherein：
Bottoming layer and cap weld adopt same welding wire ER5356, and respectively including 2 layers, and middle layer is then welded using ER4043
Silk, specific technological parameter is as follows：
Ground floor adopts ER5356 welding wires, and electric current range of accommodation is 250-290A, current polarity 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, second layer welding is carried out, the second layer is welded using ER5356
Silk, electric current range of accommodation is 250-290A, and current values of current values of second layer when welding when welding more than ground floor；
Current polarity adopts 100% Ar using exchange, protective gas（Purity >=99.99%）；Gas flow is 10 ± 3 liters/min
Clock.
When second layer face of weld temperature is reduced to 230 DEG C, third layer welding is carried out, third layer is welded using ER4043
Silk, electric current range of accommodation is 250-290A, current polarity adopts exchange, and protective gas adopts 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, the 4th layer of welding is carried out, the 4th layer is welded using ER5356
Silk, electric current range of accommodation is 250-290A, and current values one of current values and second layer during the 4th layer of welding when welding
Cause；Current polarity adopts 100% Ar using exchange, protective gas（Purity >=99.99%）；Gas flow be 10 ± 3 liters/
Minute；
Treat that the 4th layer of face of weld temperature is reduced to the pre- of the preheating temperature of Al-alloy parts or slightly above Al alloy parts
During hot temperature, layer 5 welding is carried out, layer 5 adopts ER5356 welding wires, 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；
This utility model carries out multilamellar welding when welding procedure operation is carried out by selecting different types of welding wire, with
Improve the mechanical property defect for selecting a kind of welding wire welding to have；In addition, this utility model is also by the weldering in intermediate layer both sides
When seam metal is welded, using symmetrically arranged technological parameter（Ground floor is consistent with layer 5, and the second layer and the 4th layer are consistent）, make
It is symmetric construction that weld metal is obtained in interlayer, effectively improves the mechanical property of welded unit.
4th, postwelding strengthens handling process
Immediately heat treatment carried out to 6106 aluminium alloy weldments using the box atmosphere furnaces 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 into 10-15 DEG C/min, after being heated to 450-520 DEG C, will
Substantially the weldment for being cooled to room temperature is put in heating furnace, is incubated 30min.Take out after the completion of insulation, water cooling pond is put into rapidly（Room temperature
20-25℃）In make Quenching Treatment, be cooled to room temperature, workpiece is produced to the time of water cooling pond from stove and is less than 1 minute；
Second step：Workpiece weld after cold water is cooled down is placed in cryogenic treatment apparatus, with（10-15）DEG C/speed of min
After rate is rapidly cooled to -80～-110 DEG C, maintenance half an hour, then with（3-6）DEG C/min speed slowly cools to -140～-160
After DEG C, half an hour is maintained, be finally slowly cooled to the speed of 1-1.5 DEG C/min（-190）DEG C or so, maintain 2 hours, knot
Beam subzero treatment process.
3rd step, the workpiece processed through cryogenic treatment apparatus is put into into heating and heat-insulating device, with（1-3）DEG C/min
Speed is slowly heated to（80-90）After DEG C, maintenance half an hour, then with（10-15）DEG C/speed of min is brought rapidly up to 200-220
After DEG C, 1 hour is incubated；
4th step, taking-up workpiece, are cooled to room temperature.
Measured using the hardness of HVA-10A Vickers butt joints（Ram load selects 5kg, testing standard
GB/T2654-2008）, understand that as-welded average hardness value commissure is about 75 .6HV, heat affected area by measurement result analysis
About 85 .2HV, through the heat treatment of postwelding, hardness Distribution value tends to uniform, and meansigma methodss have reached 90.5HV, and about mother metal is hard
The 98% of degree（Mother metal hardness is 95HV）
Tensile property test is carried out using YDL-2000 Universal motors（Testing standard is GB/T2649-1989, GB/T2651-
2008）, it is as shown in the table.
Note：101/102/103 represents mother metal, and 201/202/203 represents as-welded, 301/302/303 representative process state
The tensile strength that can be seen that 6061 aluminium alloy mother metals from experimental result above has reached 276MPa, percentage elongation
For 12 %, with good intensity and plasticity；
Although this utility model is taken into full account in matting, preheating procedure and welding sequence, most
In weld metal zone, tensile strength has 232MPa for the welding point tension failure position for obtaining eventually, equivalent to the 84.06% of mother metal, elongation
Rate decreases, and only 6.4%, it is seen that joint tensile strength has declined during TIG melting welding, this occurs with hardness test result
Ruckbildung is consistent, and plasticity has also declined；
State joint breaking position is processed also in weld metal zone, test specimen rift direction is almost vertical with face of weld, tensile strength
264MPa is reached, equivalent to mother metal 95.65%, percentage elongation is 10.5%, and joint tensile strength is recovered very well, plasticity is relatively welded
Joint has also recovered.Welding post processing recovers to the intensity of 6016 welded joints in aluminium alloy and plasticity recovers have very big
Help, disclosure satisfy that the requirement for using.
Claims (10)
1. there is the main suspension centre of positioning enhancing structure, it is characterised in that including U-shaped structure, U in a kind of boiler hearth overhauling platform
The blind end of shape structure can fit with the lower side wing of I-beam, and accordingly offer for clamping I-shaped on two side arms
The wing plate draw-in groove of side wing on beam, meanwhile, two side arms of U-shaped structure open up the through connection for installing lifting appliance
Hole.
2. 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 tiling springboard of main platform body, 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；Lifting appliance is arranged on girder by main suspension centre, and its feature exists
In the main suspension centre includes U-shaped structure, including blind end and two side arms, the blind end of U-shaped structure and the lower side wing of girder
Laminating, and the upper side wing of girder is then connected in the wing plate draw-in groove opened up on two side arms of U-shaped structure correspondingly, lifting
The connecting hole that equipment is opened up with two side arms of U-shaped structure is fixed.
3. boiler hearth overhauling platform according to claim 2, it is characterised in that the connection clamp includes a bending
There is plate, the bending plate section to be located at two clamps on differing heights, be respectively the first clamp and the second clamp, and described the
The outward flange downward bending that a group of one clamp is parallel to each other forms the first chute, between first chute and the wing plate of girder
It is slidably matched, the back of first chute has the second clamp towards the direction of auxiliary girder, and the second clamp is put down with the wing plate of auxiliary girder
OK；Bolt round is equipped with first clamp and the second clamp, by matching somebody with somebody load in the bolt round on the first clamp
Connecting bolt so that the first clamp is mutually fixed with girder, by being equipped with connecting bolt in the bolt round on the second clamp so that
It is fixed between auxiliary girder and girder.
4. boiler hearth overhauling platform according to claim 3, it is characterised in that the first chute back passes through indent
Cambered surface be connected with the second clamp.
5. boiler hearth overhauling platform according to claim 3, it is characterised in that the surrounding of the main platform body is fitted with
Elastic spacing wheel mechanism.
6. boiler hearth overhauling platform according to claim 5, it is characterised in that elastic spacing wheel mechanism includes spacing
Wheel, pulley yoke, lead rail axis, spring, guide rail sleeve and track base；Wherein, position-limited wheel is connected to lead rail axis one end by pulley yoke,
The lead rail axis other end is socketed on the inner chamber of guide rail sleeve, and the spring is arranged between lead rail axis and guide rail sleeve, guide rail sleeve side wall
On along guide rail sleeve the stopper slot that is axially arranged with, a guiding parts with the lead rail axis through being fixedly connected after the stopper slot；Institute
The bottom connection track base of guide rail sleeve is stated, the track base has the chute that can be connected on a side wing of I-beam, sliding
Groove is provided with bolt hole, by connecting bolt so that fixed between the track base and I-beam.
7. boiler hearth overhauling platform according to claim 6, it is characterised in that lead rail axis are hollow axle；Spring is placed in
The inner chamber of lead rail axis, and one end of spring fixes with pulley yoke, the other end is then connected through after lead rail axis with guide rail sleeve.
8. boiler hearth overhauling platform according to claim 7, it is characterised in that the bending plate, track base, guide rail sleeve
Made using 6061 aluminium alloys, and track base, guide rail sleeve are by being welded and fixed, by weldering between the first clamp and the second clamp
The mode of connecing connects.
9. boiler hearth overhauling platform according to claim 6, it is characterised in that the guiding parts is a connection spiral shell
Bolt.
10. boiler hearth overhauling platform according to claim 3, it is characterised in that auxiliary girder is with girder in the second clamp spiral shell
Between the two neighboring bolt hole of bolt round, foil gauge is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621009946.5U CN206108838U (en) | 2016-08-31 | 2016-08-31 | Boiler furnace maintenance platform and main hoisting point that has location reinforcing structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621009946.5U CN206108838U (en) | 2016-08-31 | 2016-08-31 | Boiler furnace maintenance platform and main hoisting point that has location reinforcing structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206108838U true CN206108838U (en) | 2017-04-19 |
Family
ID=58515142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621009946.5U Expired - Fee Related CN206108838U (en) | 2016-08-31 | 2016-08-31 | Boiler furnace maintenance platform and main hoisting point that has location reinforcing structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206108838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106185744A (en) * | 2016-08-31 | 2016-12-07 | 江苏能建机电实业集团有限公司 | Boiler hearth overhauling platform and there is location strengthen the main suspension centre of structure and technique |
-
2016
- 2016-08-31 CN CN201621009946.5U patent/CN206108838U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106185744A (en) * | 2016-08-31 | 2016-12-07 | 江苏能建机电实业集团有限公司 | Boiler hearth overhauling platform and there is location strengthen the main suspension centre of structure and technique |
| CN106185744B (en) * | 2016-08-31 | 2019-05-03 | 江苏能建机电实业集团有限公司 | Boiler hearth overhauling platform and its with positioning enhancing structure main suspension centre and technique |
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