Utility model content
The utility model proposes a kind of reverse installation systems of large-scale support confined space, to solve in confined space large size
The precision and support of the installation of pre- support and transport, superstructure and support when support is installed and lower part base are installed
Flatness the problems such as, specific technical solution is as follows:
The reverse installation system of a kind of large size support confined space, including the pre- support construction below main structure is arranged in;
The coupling beam that the pre- support construction includes at least two rows of support components and is connected between the support component of every row;The coupling beam
Grid structure is constituted with support component, the reserved installation site of spacing and support to be installed between two rows of support components is mutually fitted.
The support component includes the support column between vertical upper two parallel top plates and bottom plate and top plate and bottom plate;Institute
It states support column and is provided with floor of putting more energy into, the floor interval setting of putting more energy into top plate and bottom plate junction respectively.
Top board undersurface avris or corner are provided with supporting plate;The supporting plate is L shape, wherein long side is on one side from top board undersurface side
Side or corner to top plate and the elongated setting in support column junction, short side vertical top board undersurface avris or corner, and short side one on one side
Section is no more than top plate outer end face outside side.
Coupling beam is set in adjacent supports intercolumniation, the coupling beam includes two parallel up and down horizontal coupling beams, and level is even
Cant beam between beam.
The reverse installation system of a kind of large-scale support confined space, further includes transportation system, transportation system's packet
Containing track, one group of consignment trolley being connected to the adjuster of track one end and walk in orbit;The consignment trolley packet
Pulley in the pulley yoke of frame containing rectangle and pulley yoke is connected with upper cover plate on the pulley yoke, and the consignment trolley is at least
It two, is symmetricly set on two siding tracks.
The adjuster includes the jacking apparatus on one group of branch firmware and branch firmware;The branch firmware includes on vertical
Column between parallel upper supporting plate and lower carrier plate and upper supporting plate and lower carrier plate;The jacking apparatus include vertical jack and
It is connected to the upper raising plate and lower raising plate of jack upper and lower end parts, the lower raising plate corresponds to the connection of upper supporting plate center.
The branch firmware and jacking apparatus are fitted in the interior four corners for the square box that two tracks and track girder are constituted, the phase
It is connected with waling stripe between adjacent column, horizontal brace is connected between corner post;When jack does not work in the adjuster
Overall height adapts to support substructure mounting height, and tip height is less than the height of consignment trolley upper cover plate.
It is connected with upper padding plate between the holder top structure and main structure, wherein backing plate corresponds to holder top structure anchor
The preparatory pore-forming in hole and simultaneously bore hole.
The utility model has the following beneficial effects:
The utility model forms preparatory support to main structure by pre- support construction, needed for ensure that support is inversely installed
Operating space, and in pre- support construction coupling beam setting, ensure that the globality of pre- support construction, and top plate and bottom plate
The load area for then expanding support column is set, so that support load has more stability, wherein the setting of put more energy into floor and supporting plate
Further ensure the load performance of support column;It, can will be under the support of confined space large size support by the setting of transportation system
Portion's structure is transported and is installed, and adjuster ensure that holder top structure and the installation of support substructure in transportation system
Precision and be connected and fixed, wherein the clamping of branch firmware in adjuster is fitted on the inside of track, plays support and limit
Effect, jacking apparatus then play the role of classification adjustment installation;In reverse installation, first erection support superstructure
And holder top structure, upper padding plate are carried out to may make aperture error to reach design with bore hole is bored together with main structure bottom plate
It is required that and the position that can have been fixed according to holder top structure in the installation of support substructure installed, to protect
The precision of support integral installation is demonstrate,proved;It, can be according to flatness requirement pair for the installation between mounted support and pedestal
Lower bolster is polished, to ensure that the requirement of the installation flatness of support and pedestal.The utility model is involved to support structure
Part is simple and easy pre-production, and construction method is easy to operate and is convenient for field conduct, can effectively save working hour, improves support and installs matter
Amount.
Specific embodiment
The present embodiment need to complete segment bottom in the installation of short tower support by taking confined space large size support installation in short tower as an example
The work such as the installation of plate, upper billet and support, short tower support control accuracy requirement control error ± 0.2mm, according to a conventional method
It is unable to reach the machining accuracy in support group hole, for this purpose, support is inversely installed, confined space large size support is split as propping up
Seat superstructure 6 and support substructure 7.
In the present embodiment, 24 preformed holes are arranged in each holder top structure 6, and aperture Φ 101mm, plate thickness 100mm are first used
Magnetic force drilling machine drills to 24 preformed holes of each holder top structure 6, aperture Φ 90mm, and holder top structure 6 is pacified
After being filled to segment bottom, then pass through boring equipment reaming to Φ 101mm.Support producer transports support to scene, utilizes automobile
It hangs cooperation to remove holder top structure 6, support substructure 7 is protected, in the rectangular sleeper of rest base pad, spherical crown lining
Cricket face is protected using bubble protection film, and outer layer is covered with plastic foil+colour bar cloth, is made into protecting box with three-ply board+lumps of wood keel,
It covers in outermost layer.
As shown in Figure 1 to Figure 3, the reverse installation system of a kind of large-scale support confined space, including be arranged at short tower segment bottom
The pre- support construction of 1 lower section of plate main structure;The pre- support construction includes at least the rows of support group in support two sides to be installed
Part 2 and the coupling beam being welded between the support component 2 of every row;The coupling beam and support component 2 constitute grid structure, Liang Paizhi
The reserved installation site of spacing and support to be installed between support component 2 is mutually fitted;Coupling beam wherein is set between adjacent supports column 25,
The coupling beam includes the cant beam 4 between parallel up and down two horizontal coupling beams 3 and horizontal coupling beam 3, and wherein coupling beam is channel steel or angle
Steel is made.
As shown in figure 4, the support component 2 includes vertical upper two parallel top plates 21 and bottom plate 22 and 21 He of top plate
Support column 25 between bottom plate 22, the top plate 21 and bottom plate 22 are square plate, and support column 25 is tubular steel column;The support column
25 are provided with floor 24 of putting more energy into top plate 21,22 weld of bottom plate respectively, and the floor 24 of putting more energy into is trapezoidal steel plate and interval is set
It sets.21 bottom surface avris of top plate or corner are provided with supporting plate 23;The supporting plate 23 is L shape steel plate, wherein long side is on one side from top plate
21 bottom surface avris or corner to top plate 21 and the elongated setting of 25 weld of support column, short side on one side vertical 21 bottom surface avris of top plate or
Corner, and outer section is no more than 21 outer end face of top plate to short side on one side.
As shown in Figure 5 and Figure 6, a kind of large-scale reverse installation system of the support confined space further includes transportation system, the fortune
One group of consignment trolley that defeated system includes track 5, is slidably connected to the adjuster 9 of 5 one end of track and walks on the rail 5
11;The consignment trolley 11 is welded on pulley yoke comprising being connected with two groups of pulleys in steel rectangle frame pulley yoke, pulley yoke
Steel upper cover plate, there are four the consignment trolleys 11, is arranged on two siding tracks 5 in rectangle.
As shown in fig. 7, the adjuster 9 includes the jacking apparatus on one group of branch firmware and branch firmware;It is described to fix
Part includes column 95 between vertical parallel upper supporting plate 93 and lower carrier plate 94 and upper supporting plate 93 and lower carrier plate 94, it is described on
Supporting plate 93 and lower carrier plate 94 are steel square plate, and column 95 is tubular steel column;The jacking apparatus includes vertical jack and weldering
The upper raising plate 91 and lower raising plate 92 in jack upper and lower end parts are connect, the upper raising plate 91 and lower raising plate 92 are square bar
Making sheet, corresponding 93 center weld of upper supporting plate of the lower raising plate 92, the corresponding support support substructure 7 of upper supporting plate 93, and lower branch
Plate 94 is stood in ground base.
In the present embodiment, the branch firmware and jacking apparatus are fitted in two tracks 5 and the square box of the composition of track girder 10
Interior four corners are welded with waling stripe 96 between the adjacent columns 95, horizontal brace 97 are welded between corner post 95, level is even
Bar 96 and horizontal brace 97 are steel pipe;Overall height adapts to support lower junction when jack does not work in the adjuster 9
7 mounting height of structure, and tip height is less than the height of 11 upper cover plate of consignment trolley.
In conjunction with shown in Fig. 1 to Fig. 7, a kind of work of the reverse installation system of large-scale support confined space is further illustrated
Method, the specific steps are as follows:
Step 1: the design supporting point according to main structure 1, arranges support component 2, and be welded and fixed with coupling beam, thus
The pre- support construction in bottom of main structure 1 is formed, is lifted in main structure 1 to pre- support construction, and measures adjustment positioning.
Step 2: confined space large size support is split into holder top structure 6 and support substructure 7, and by support
Superstructure 6 is lifted on axis vehicle, is transported holder top structure 6 to susceptor design position to be installed by axis vehicle.
Consolidate Step 3: first holder top structure 6 drills and installs bolt between the segment bottom plate of main structure 1
It is fixed, 12 M80 bolts are installed and fix holder top structure 6, it is very heavy that 21 4 side horizontal direction of top plate respectively installs 2 10t
Three support components 2 are placed on 6 lower section of holder top structure after the completion of accurate adjustment, prevent holder top structure 6 from falling, so by top
Bore hole is carried out according to design anchoring pore size to holder top structure 6 afterwards, is wherein welded between holder top structure 6 and main structure 1
It is connected to upper padding plate 8, before the step 3 on the support installation of portion's structure 6, upper padding plate 8 is bolted in advance in main structure 1,
Wherein backing plate corresponds to the preparatory pore-forming of 6 anchor hole of holder top structure and simultaneously bore hole;
Using the operation simultaneously of two Boring machines, bore hole sequence is diagonal while clockwise to next hole location bore hole from two,
The step of middle bore hole, is as follows:
1) positioning sleeve and boring bar, welding bracing frame are installed;
2) positioning sleeve is removed after the completion of welding;
3) by power unit, feed unit, feed screw and Cutting tool installation manner on boring bar, by hole machined to required size;
4) vernier caliper measurement aperture is used, inspection record is carried out;
5) cover board piece number is paid attention to according to drawing dimensioned cover board hole after bore hole;
It is worked after bore hole using the trial assembly that the solid PVC round tube of diameter phi=100mm carries out whole bolts, during bore hole
With thermometer measure steel billet temperature, and keep a record;After aperture is met the requirements, anti-corrosion is carried out to anchor hole and holder top structure 6
Touch-up paint work;After the completion of bore hole, according to Boring preciseness, 6 anchor cover board of erection support superstructure, by cover board spot welding, using diameter
The solid PVC round tube auxiliary positioning of 100mm after determining anchor cap locations, carries out 24 anchor cover boards of each holder top structure 6
Reaming work;After the completion of anchor cover board reaming, anchor bolt on 24 supports of each support is installed;The installation method of anchor bolt
Are as follows: with fork truck by by anchor bolt movement to segment, anchor bolt installment work is manually carried out by worker, bolt is installed
Afterwards, with specific purpose tool, nut is tightened.
Step 4: being hung with vehicle and support substructure 7 is transported near main structure 1 by flat car, and install small to fortune beam
Che Shang pulls in the attachment rail 5 of support substructure 7 below 6 projected area of holder top structure with jack, on middle orbit 5
9 face holder top structure of adjuster, 6 projected area (error < 5mm).
Step 5: measure review to 5 position of track, after meeting the requirements, using fortune beam trolley by support substructure 7
6 plate projected area of holder top structure is arrived along the walking of track 5, and is located at right above adjuster 9.
Step 6: being measured with plummet holder top structure 6 and 7 avris of support substructure and center, and adjust accurate adjustment
9 lower flat position of device will prop up so that holder top structure 6, support substructure 7 and 9 three center of adjuster are overlapped
Seat substructure 7 vertically jacking at the 5mm away from holder top structure 6, checking again for support lower part and holder top structure 6
Concentricity, continuing will be under support using jacking apparatus in adjuster 9 after being adjusted in place with in-plane displancement adjustment device accurate adjustment
Portion's structure 7 is jacked and is installed in holder top structure 6.
Step 7: highly being checked between holder top structure 6 and support substructure 7, on support after completing jacking
It is when portion's structure 6 and support substructure 7 reach factory after height, holder top structure 6 and support substructure 7 is fixed, it is complete
It is inversely installed at support.
In the present embodiment, after completion support is inversely installed, main structure 1 is promoted to and is replaced the pre- support of adaptable height
Structure increases wood block filler, and each support substructure 7 has 20 lower anchor bolts, and single anchor bolt weight is 75kg, before installation, with fork
Vehicle transports anchor bolt under support to short tower segment;Short tower is promoted to 2m high with 1250t crawler crane, meanwhile, it will
Pre- support construction below segment is increased to 2m;Lower anchor bolt is installed using Special-purpose lifting tooling, is tightened, is completed under support
Anchor bolt installation;Then 7 anchor bolt of erection support substructure, 7 anchor bolt of support substructure be installed after by integral lifting on earth
It is installed on portion's pedestal, lower rigid backing plate has wherein been bolted on pedestal, lower rigid backing plate drills and polishes flat in advance, and flat
Whole degree meets 7 installation requirement of support substructure, finally by the 7 anchor hole slip casting of support substructure, thus completes main structure 1
Confined space large size support integral installation.
In the present embodiment, the installation flatness requirement for lower billet is ± 3mm, and flatness of support is ± 0.5mm,
Two component precision mismatch, and for the installation contact rate for ensuring support, improve the useful life longevity of support;To billet under scene into
Row Precision Machining carries out milling to lower billet using double track milling machine, and flatness control ± 0.5mm, lower billet installation is in place
Afterwards, lower billet slip casting is carried out, after the completion of mud jacking, since mud jacking process has reverse top lift to lower billet, it is therefore desirable to right
Lower billet and 7 flatness of support substructure measure, and obtain basic data, provide reference for field polish processing, under
Billet polishing requires: steel plate flatness≤1mm, relative relief≤1mm of two pieces of lower billets on a pedestal.
By the way of double track milling machine combination guide rail, lower billet polishing is carried out, specific scheme of polishing is as follows:
1) field data measures
It is familiar with site environment, the measurement and data before carrying out equipment installation calculate;Machining accuracy flatness≤1mm;Due to
Workpiece size is larger, and existing double track milling machine guide rail is that 4m × 4m can carry out milling, Bu Nengyi in any position in the range of 4m
Secondary location and installation guide rail processing, processing scheme are to be installed separately guide rail processing, are often processed within the scope of 4m, moving guide rail is again fixed
Position installation, carries out Milling Process next time.
2) equipment is installed
Step 1: a double track milling machine Y guide rail is respectively installed in face two sides to be processed, according to the height in face to be processed, double track
The height of milling machine oneself height and power head, cutterhead calculates the height for determining and adjusting guide rail, and basis is existing after determining rail height
The N Reference Alignment guide rail that field client provides:
Step 2: double track milling machine X guide rail is installed on above Y guide rail with lifting appliance, power head and cutterhead are installed
On X guide rail, milling head is adjusted, keeps milling head main shaft vertical with the base dress face that client provides.
3) Milling Process
Step 1: alloy knife, according to processing object structure, is measured into the surplus at position to be processed on cutterhead, in order to
Situations such as preventing workpiece surface from deforming, exists, first 0.5 mm of climb milling, and whether observation workpiece surface is smooth after milling finishes,
As smooth, prepare normal process, such as out-of-flatness, climb milling 0.5mm again is negotiated according to surplus and live responsible person, until
Face to be processed is milled substantially flat.
Step 2: roughing, downfeed 1.3mm, revolving speed 80r/min every time, according to workpiece surplus to be added, divide two-edged into
Row.To prevent fortuitous event, each feed milling is completed to carry out one-shot measurement later, finally reserves 0.4mm surplus to finishing
Work.
Step 3: finishing: in order to guarantee machining accuracy and requirement, two knife of finishing work point is carried out, and the first knife is downfeed
0.3mm, revolving speed 120r/min, the second knife downfeed 0.1mm, revolving speed 120r/min.
After lower billet milling, anticorrosive coating is carried out to lower billet surface using epoxy zinc rich primer, prevents from getting rusty, by
This completes polishing flat for lower steel plate.
Obviously, above-described embodiment is only intended to clearly illustrate made by the outstanding feature of the utility model and illustrates, and is not
It is the restriction to the utility model embodiment;For those skilled in the art, basis is used above explained
On can still make other variations or changes in different ways, if not carrying out inventive improvements to it, belong to the utility model
Protection scope.