CN206108785U - Adopt interior platform device that overhauls of boiler furnace of M shape springboard - Google Patents

Abstract

The utility model discloses an adopt interior platform device that overhauls of boiler furnace of M shape springboard, include the platform main part and lift by crane equipment, the platform main part, including girder, auxiliary girder, folded beam, spacing beam and springboard roof beam to at the periphery of platform main part tiling springboard, the inner circle of springboard is joined in marriage and is equipped with the rail, the springboard for M shape springboard, including the springboard platform and set up in the bearing structure of springboard platform below, the transversal isosceles trapezoid that personally submits of springboard platform describes the setting, and bearing structure installs the tip at aforementioned isosceles trapezoid form springboard platform, bearing structure is provided with to bilateral symmetry the 2nd bearing structure, the 3rd bearing structure including setting up the bearing structure in springboard platform middle part position department. Therefore, the utility model discloses a M type springboard has reduced 9% for original springboard gross weight to also decrease to some degree of large deformation, it is also safer comparatively speaking.

Description

Using repairing platform device in the boiler furnace of M shape springboards

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 hearth overhauling platform, is all to pass through steel connector group using the I-shaped aluminium section bar of 2A12 materials The platform structure frame for filling, therefore, using the platform of this structure along with the springboard of surrounding laying, deadweight can just be up to 4 Ton is more.It is current burner hearth inspection platform development so for manufacturing enterprise, how to reduce boiler hearth overhauling platform deadweight An important research direction.

In order to reduce inspection platform overall weight, in the case where cost is considered, light material aluminum inexpensively is selected Alloy connector 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 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.

In connection, dislocation, steering etc. are there may be between joint face, using integrally formed aluminum coupling element, for The requirement of integral forming technique can be higher, now, just may require that and weld aluminium section bar of different shapes to make using welding procedure Into required connector；And be also that this area needs a main points of attention for the welding quality of aluminium section bar, 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, and descending operation is completed in boiler furnace；Due to Boiler Furnace Thorax internal diameter is typically all tens meters, and the Outside Dimensions of inspection platform are almost matched 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 with inboard wall of burner hearth to wheel；It is substantially unadjustable and installation dimension of the existing directive wheel on inspection platform is more fixed, Therefore, the pulley yoke of directive wheel is easily damaged, meanwhile, directive wheel is usually rigidity and connects with the direct connected mode of inspection platform Connect, therefore, when directive wheel is touched with inboard wall of burner hearth, 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 boiler hearth overhauling platform, it passes through to improve existing Springboard version, on the premise of springboard quality is mitigated, can effectively improve the mechanical property of springboard.

In order to realize above-mentioned technical purpose, this utility model is adopted the following technical scheme that：

Repairing platform device in a kind of boiler furnace of employing M shape springboards, including main platform body and lifting appliance；It is described Main platform body, including girder, auxiliary girder, folded beam, spacing beam and springboard beam, and tile springboard in the periphery of main platform body, The inner ring of springboard is fitted with fence；Fence is arranged in main platform body by fence bearing；Girder is with auxiliary girder by being connected clamp Realize both intersect vertically；Folded beam realizes foldable connection by folding joint and auxiliary girder, and described springboard is the jump of M shapes Plate, including springboard platform and the supporting construction that is arranged at below springboard platform；The cross section of the springboard platform is in isosceles ladder Shape is arranged, and supporting construction is arranged on the small end of aforementioned isosceles trapezoid shape springboard platform；The supporting construction includes being arranged on jump The first supporting construction at plate platform medium position, the both sides of the first supporting construction be symmetrically provided with the second supporting construction, Three supporting constructions, the 3rd supporting construction is arranged at the end position of springboard platform, and the second supporting construction is then located at first Between support structure, the 3rd supporting construction；Wherein：

The first described supporting construction, including the first internal layer arm, the first outer layer arm；First internal layer arm, outside first The cross section of layer arm 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 overlap；

The second described supporting construction, including the second internal layer arm, the second outer layer arm；Second internal layer arm, outside second The cross section of layer arm 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 The center of arm offsets relative to the center of the second outer layer arm to the center position of springboard；

Described the first supporting construction, the big end of the second described supporting construction are 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.

Used as further improvement of the utility model, the inclination angle of the isosceles trapezoid shape springboard platform is 60-65 °.

As further improvement of the utility model, the first internal layer arm, the first outer layer arm, the second internal layer Pipe, the second outer layer arm inclination angle it is consistent, value is between 70-80 °.

As further improvement of the utility model, between the hypotenuse of the first internal layer arm and the first outer layer arm hypotenuse Spacing is 1-2mm；Spacing between the base of the base of the first internal layer arm and the second internal layer arm is 1-2mm.

As the outside of further improvement of the utility model, the outside hypotenuse of the second internal layer arm and the second internal layer arm Spacing between hypotenuse is the 2-4 of the spacing between the inner side hypotenuse of the inner side hypotenuse of the second internal layer arm and the second internal layer arm Times.

As the outside of further improvement of the utility model, the outside hypotenuse of the second internal layer arm and the second internal layer arm Spacing between hypotenuse is 3-4mm；Between between the inner side hypotenuse of the inner side hypotenuse of the second internal layer arm and the second internal layer arm Away from 1-2mm.

Used as further improvement of the utility model, the surrounding of the main platform body is fitted with elastic spacing wheel mechanism.

Used as further improvement of the utility model, elastic spacing wheel mechanism includes position-limited wheel, pulley yoke, lead rail axis, bullet 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 The inner chamber of guide rail sleeve, and the spring is set between lead rail axis and guide rail sleeve, set along the axial direction of guide rail sleeve on the wall of guide rail sleeve side Limited location groove a, guiding parts is fixedly connected through after the stopper slot with the lead rail axis；The bottom connection of the guide rail sleeve Track base, the track base has the chute that can be connected on a side wing of I-beam, and chute is provided with bolt hole, passes through Connecting bolt causes fixed between the track base and I-beam.

Used as further improvement of the utility model, lead rail axis are hollow axle；Spring is placed in the inner chamber of lead rail axis, and spring One end fix with pulley yoke, the other end with guide rail sleeve then through being connected after lead rail axis.

Used as further improvement of the utility model, the guiding parts is a bolt.

According to above-mentioned technical scheme, relative to prior art, this utility model has following beneficial effect：

1st, the advantage of M shapes springboard

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 Also decrease to some degree, it is comparatively also safer.It follows that this utility model not only can reduces cost, and And safety there has also been larger raising.

2nd, the advantage of elastic spacing wheel mechanism

A kind of boiler hearth overhauling platform of this utility model and its elastic spacing wheel mechanism, due between position-limited wheel and platform Buffer structure with lead rail axis, spring and guide rail sleeve composition so that certain energy is realized between position-limited wheel and I-beam Amount buffering, when directive wheel is touched with inboard wall of burner hearth, is not result in the technical problem that the pulley yoke of position-limited wheel 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 the structural representation of I-beam (by taking A beams as an example) 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.

Referring to shown in Figure 13～Figure 14, the utility model discloses a kind of elastic spacing wheel mechanism, including position-limited wheel 321, Pulley yoke 323 and lead rail axis 324；Also include spring 325, guide rail sleeve 327 and track base 329；Wherein, position-limited wheel 321 leads to Cross pulley yoke 323 and be connected to the one end of lead rail axis 324, the other end of lead rail axis 324 is socketed on the inner chamber of guide rail sleeve 327, and guide rail The spring 325 is set between axle 324 and guide rail sleeve 327, it is spacing along being axially arranged with for guide rail sleeve 327 on the side wall of guide rail sleeve 327 Groove a, 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 is connect, the track base 329 has the chute that can be connected on a side wing of I-beam, and chute is provided with spiral shell Keyhole, 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 In main body, it is connected with the I-beam on the outside of main platform body, is mostly installed on B beams (auxiliary girder) and C beams (folded beam)；Institute Fence bearing is stated including fence seat clamp 31-1 and fence connecting tube 31-2；The fence seat clamp 31-1 has and I-beam The fence seat chute 31-1a that wing plate coordinates, on the fence seat chute 31-1a bolt hole is offered, by being equipped with bolt hole Connecting bolt, fence seat clamp 31-1 is arranged on I-beam；The fence seat clamp 31-1 is fence seat chute 31-1a's Back 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 clamping The inner tubal wall draw-in groove 31-2b that plate 31-1b coordinates, and the outer tube wall of fence connecting tube 31-2 be then provided with it is some uniform with anti- The outer tube wall draw-in groove 31-2a of sliding effect；Fence connecting tube 31-2 is by inner tubal wall draw-in groove 31-2b and fence seat card adapter plate 31-1b Cooperation, installed in the back side of fence seat chute 31-1a.Fence is including fence pipe, fence vertical rod, installed in fence pipe and fence Double card button a, fence pole between vertical rod, the double card button b between fence pipe and fence pole；Wherein fence vertical rod is led to Cross fastener to be 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 Also decrease to some degree, it is comparatively also safer.It follows that this utility model not only can reduces cost, and 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, ER4043 There is metachromatism in the weld metal of welding wire.

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 (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, third layer welding is carried out, third layer is welded using ER4043 Silk, electric current range of accommodation be 250-290A, current polarity using exchange, protective gas using 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 (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 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 unanimously), 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 (room temperature is put into rapidly 20-25 DEG C) 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 the speed of (10-15) DEG C/min After rate is rapidly cooled to -80～-110 DEG C, half an hour is maintained, then -140～-160 are slowly cooled to (3-6) DEG C/min speed After DEG C, half an hour is maintained, finally (- 190) DEG C or so are slowly cooled to the speed of 1-1.5 DEG C/min, 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's Speed is slowly heated to after (80-90) DEG C, maintains half an hour, then is brought rapidly up to 200-220 with the speed of (10-15) DEG C/min After DEG C, 1 hour is incubated；

4th step, taking-up workpiece, are cooled to room temperature.

(ram load selection 5kg, testing standard GB/ are measured using the hardness of HVA-10A Vickers butt joints 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 adopt YDL-2000 Universal motors to carry out tensile property test 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, stretches Long 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 be 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. repairing platform device in a kind of boiler furnace of employing M shape springboards, 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, jump The inner ring of plate is fitted with fence；Fence is arranged in main platform body by fence bearing；Girder is with auxiliary girder by being connected clamp reality Both existing intersects vertically；Folded beam realizes foldable connection by folding joint and auxiliary girder；Characterized in that, described springboard For M shape springboards, including springboard platform and the supporting construction that is arranged at below springboard platform；The cross section of the springboard platform is in Isosceles trapezoid shape is arranged, and supporting construction is arranged on the small end of aforementioned isosceles trapezoid shape springboard platform；The supporting construction includes setting The first supporting construction at springboard platform medium position is put, the both sides of the first supporting construction are symmetrically provided with the second support knot Structure, the 3rd supporting construction, the 3rd supporting construction is arranged at the end position of springboard platform, and the second supporting construction is then located at the Between one supporting construction, the 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 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 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 relative to the second outer layer arm center position from center to springboard offset；

Described the first supporting construction, the big end of the second described supporting construction are 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.

2. repairing platform device in the boiler furnace of employing M shape springboards according to claim 1, it is characterised in that described The inclination angle of isosceles trapezoid shape springboard platform is 60-65 °.

3. repairing platform device in the boiler furnace of employing M shape springboards according to claim 1, it is characterised in that described First internal layer arm, the first outer layer arm, the second internal layer arm, the second outer layer arm inclination angle it is consistent, value is between 70- Between 80 °.

4. repairing platform device in the boiler furnace of employing M shape springboards according to claim 1, it is characterised in that first Spacing between the hypotenuse of internal layer arm and the first outer layer arm hypotenuse is 1-2mm；Outside the base and first of the first internal layer arm Spacing between the base of layer arm is 1-2mm.

5. repairing platform device in the boiler furnace of employing M shape springboards according to claim 1, it is characterised in that second Spacing between the outside hypotenuse of the outside hypotenuse of internal layer arm and the second internal layer arm is the inner side hypotenuse of the second internal layer arm And 2-4 times of the spacing between the inner side hypotenuse of the second internal layer arm.

6. repairing platform device in the boiler furnace of employing M shape springboards according to claim 1, it is characterised in that second Spacing between the outside hypotenuse of the outside hypotenuse of internal layer arm and the second internal layer arm is 3-4mm；Second internal layer arm it is interior Spacing 1-2mm between the inner side hypotenuse of skew back side and the second internal layer arm.

7. repairing platform device in the boiler furnace of employing M shape springboards according to claim 1, it is characterised in that described The surrounding of main platform body is fitted with elastic spacing wheel mechanism.

8. repairing platform device in the boiler furnace of employing M shape springboards according to claim 7, it is characterised in that elasticity Position-limited wheel mechanism includes position-limited wheel, pulley yoke, lead rail axis, spring, guide rail sleeve and track base；Wherein, position-limited wheel passes through pulley Frame is connected to lead rail axis one end, and the lead rail axis other end is socketed on the inner chamber of guide rail sleeve, and arranges between lead rail axis and guide rail sleeve The spring, along the stopper slot that is axially arranged with of guide rail sleeve on the wall of guide rail sleeve side, a guiding parts through after the stopper slot with institute State lead rail axis to be fixedly connected；The bottom connection track base of the guide rail sleeve, the track base has can be connected to I-beam Chute on one side wing, chute is provided with bolt hole, by connecting bolt so that fixed between the track base and I-beam.

9. repairing platform device in the boiler furnace of employing M shape springboards according to claim 8, it is characterised in that guide rail Axle is hollow axle；Spring is placed in the inner chamber of lead rail axis, and one end of spring is fixed with pulley yoke, and the other end is then through after lead rail axis It is connected with guide rail sleeve.

10. repairing platform device in the boiler furnace of employing M shape springboards according to claim 9, it is characterised in that described Guiding parts is a bolt.