CN105383642A - Vertical guide rail mounting and welding method - Google Patents
Vertical guide rail mounting and welding method Download PDFInfo
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- CN105383642A CN105383642A CN201510640297.2A CN201510640297A CN105383642A CN 105383642 A CN105383642 A CN 105383642A CN 201510640297 A CN201510640297 A CN 201510640297A CN 105383642 A CN105383642 A CN 105383642A
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Abstract
The invention discloses a vertical guide rail mounting and welding method. The vertical guide rail mounting and welding method comprises the following steps of scribing at the bottom of a ship body according to a ship-building berth assembling line; mounting a steel template at the bottom of the ship body according to the scribed line, wherein the steel template is obtained on the basis of a maximum projection surface of a lifting fin; determining a plumb line of a lower half part guide rail on the basis of the steel template; mounting the lower half part guide rail on the basis of the steel template and the plumb line of the lower half part guide rail; determining a plumb line of an upper half part guide rail; and mounting the upper half part guide rail on the basis of the steel template and the plumb line of the upper half part guide rail. As the vertical guide rail is divided into two parts, the two parts are respectively mounted, and the steel template and the plumb lines are designed as the mounting reference of the vertical guide rails, the mounting precision of the vertical guide rail can be improved, the mounting success ratio is high and the application range of the vertical guide rail mounting and welding method is wide. The vertical guide rail mounting and welding method can be commonly applied to accurate locating and mounting constructions of various large-sized vertical guide rails.
Description
Technical field
The invention belongs to Naval Architecture and Ocean Engineering technical field, particularly relate to a kind of vertical guide rail erecting and welding method.
Background technology
On large ocean Scientific Research Ship at home and abroad, be loaded with a lot of scientific investigation detecting devices, it is generally installed in box-structure carrier.When scientific investigation detecting devices need carry out habitata, these structure carriers need deliver scientific investigation equipment and lean out beyond hull.Therefore, usually the middle part of hull is provided with vertical lift well (or moon pool), these lift wells (or moon pool) are through hull multideck, from hull bottom through tank top plate, platform deck, lower deck, upper deck, fore castle deck, can arrive boat deck always.The Main Function of lift well is for supplying scientific investigation apparatus carriers---the vertical takeoff and landing of lifting fin keel.For flipper panel assembly, its maximum framing member is vertical guide rail, and vertical guide rail specifically comprises with lower component: guide rail panel, rail web, guide rail bracket, guide rail reinforced rib.Wherein, guide rail panel is guiding contact surface during lifting fin keel body structure vertical takeoff and landing; Rail web is for connecting and supporting guide panel; Guide rail bracket connection guide rail panel, web and bulkhead, for being fixed on bulkhead by rail web; The Main Function of guide rail bracket and guide rail reinforced rib is all the stationarity in order to strengthen between guide rail body and bulkhead.
Because vertical guide rail is the max architecture part forming lifting fin keel, therefore, the setting accuracy of vertical guide rail directly affects lifting fin keel reliability of operation.
Existing vertical guide rail is generally section bar and the horizontal bracket composition of roll forming, its installation method is simple: during location and installation, vertical guide rail is made to be parallel to bulkhead, then the fillet weld between the horizontal bracket of guide rail and bulkhead is welded, be fixedly connected with to make both, and rail web does not directly weld with bulkhead, only weld with horizontal bracket point of connection.The object done like this, avoids guide rail body directly and bulkhead welding, reduce guide rail body welding region, make its not easily temperature distortion, and adopt in such a way, the precision after vertical guide rail installation is easy to reach within range of control.
But, vertical guide rail in the prior art, its structure, materials and structures etc., along with equipment makes a big difference, therefore, existing installation method inapplicable all vertical guide rails.Such as, the material of the vertical guide rail of box ship, have employed profiles.This kind of vertical guide rail, weight and volume is all smaller, and precision is easy to ensure.Therefore existing welding method can be adopted.
But, for large-scale vertical guide rail, its weight and volume is all larger, and (such as length is greater than 10 meters, the large-scale vertical guide rail that weight is greater than 6.5 tons) installation and welding, the installation method of prior art is inapplicable, and therefore the installation method of prior art has certain limitation.
Summary of the invention
For the problems referred to above, invention provides a kind of vertical guide rail erecting and welding method, mainly for large-scale vertical guide rail, also can be suitable for the guide rail of other types, with the installation method solving prior art, there is circumscribed technical matters.
For solving the problems of the technologies described above, the invention provides a kind of vertical guide rail erecting and welding method, described vertical guide rail comprises the first half guide rail and the latter half guide rail, and described method comprises:
Rule in hull bottom according to building berth general assembly line;
According to described line, in described hull bottom, steel model is installed; Wherein, described steel model is the maximum projection plane's making acquisition based on lifting fin keel;
Based on described steel model, determine the plumb bob vertical of described the latter half guide rail;
Based on the plumb bob vertical of described steel model and described the latter half guide rail, described the latter half guide rail is installed;
Determine the plumb bob vertical of described the first half guide rail;
Based on the plumb bob vertical of described steel model and described the first half guide rail, described the first half guide rail is installed.
Preferably, the relevant bits on described steel model checks that line comprises: actual lifting line of centers, longitudinal centerline, stern guide rails assembling position, installation position below bow side guide lower deck, stem intermediate rail installation position, described first plumb bob vertical control point, the second plumb bob vertical control point.
Preferably, described line comprises: rule in hull center, and angle square line is rule, the line of larboard lifting fin keel line of centers, the line of starboard lifting fin keel line of centers.
Preferably, described according to described line, in described hull bottom, steel model is installed, specifically comprises:
Based on the line of described hull center, the line of described angle square line, the line of described larboard lifting fin keel line of centers, left steel model is installed; On described left steel model, the longitudinal centerline that described left steel model is corresponding and the line of described larboard lifting fin keel line of centers overlap; The intersection point of the line of described angle square line and the line of described larboard lifting fin keel line of centers and actual lifting line of centers coincidence corresponding to described left steel model;
Based on the line of described hull center, the line of described angle square line, the line of described larboard lifting fin keel line of centers, right steel model is installed; On described right steel model, longitudinal centerline corresponding on described right steel model and the line of described starboard lifting fin keel line of centers overlap; The intersection point of the line of described angle square line and the line of described starboard lifting fin keel line of centers and actual lifting line of centers coincidence corresponding to described right steel model.
Preferably, described according to building berth general assembly line after hull bottom is rule, described method also comprises:
Utilize laser transit larboard to be elevated the line of fin keel line of centers and starboard lifting fin keel line of centers to rule and transit to each self-corresponding transcerse bulkhead respectively, as transition line of centers.
Preferably, described based on described steel model, determine the plumb bob vertical of described the latter half guide rail, specifically comprise:
Based on described transition line of centers, determine the plumb bob vertical messenger wire point on the first machine frame;
By the centre hole of described plumb bob vertical through the adjustment plate on described first machine frame, hang described plumb bob vertical to hull bottom;
The vertical point of described plumb bob vertical lower end is adjusted to described first plumb bob vertical control point place to fix.
Preferably, after hanging described plumb bob vertical to hull bottom, described method also comprises:
Second machine frame is determined the position of vertical line crossing point, and makes described plumb bob vertical through by the adjustment plate on described second machine frame, then described plumb bob vertical is fixed.
Preferably, described the latter half guide rail comprises: the latter half guide rail of stern guide rail, the latter half guide rail of bow side guide, the latter half guide rail of bow intermediate rail;
The described plumb bob vertical based on described steel model and described the latter half guide rail, described the latter half guide rail is installed, specifically comprises:
Based on described plumb bob vertical, the latter half guide rail of described stern guide rail is lifted and is welded on described stern guide rails assembling position;
Based on described plumb bob vertical, the latter half guide rail of described bow side guide is lifted and is welded on below described bow side guide lower deck installation position;
Based on described plumb bob vertical, the latter half guide rail of described bow intermediate rail is lifted and is welded on described stem intermediate rail installation position.
Preferably, the described plumb bob vertical determining described the first half guide rail, specifically comprises:
Make described plumb bob vertical through the centre hole of the adjustment plate on the 3rd machine frame, described plumb bob vertical lower extreme point is overlapped with the centre hole of the adjustment plate of the first machine frame.
Preferably, described the first half guide rail comprises: the first half guide rail of stern guide rail, the first half guide rail of bow side guide, the first half guide rail of bow intermediate rail;
The described plumb bob vertical based on described steel model and described the first half guide rail, described the first half guide rail is installed, specifically comprises:
Based on described plumb bob vertical, weld the first half guide rail of described stern guide rail and the latter half guide rail of described stern guide rail;
Based on described plumb bob vertical, weld the first half guide rail of described bow side guide and the latter half guide rail of described bow side guide;
Based on described plumb bob vertical, weld the first half guide rail of described bow intermediate rail and the latter half guide rail of described bow intermediate rail.
By a technical scheme of the present invention, the present invention has following beneficial effect or advantage:
The invention discloses a kind of vertical guide rail erecting and welding method, comprising: rule in hull bottom according to building berth general assembly line; According to described line, in described hull bottom, steel model is installed; Wherein, the area of described steel model is the maximal projection area of described lifting fin keel; Based on described steel model, determine the plumb bob vertical of described the latter half guide rail; Based on the plumb bob vertical of described steel model and described the latter half guide rail, described the latter half guide rail is installed; Determine the plumb bob vertical of described the first half guide rail; Based on the plumb bob vertical of described steel model and described the first half guide rail, described the first half guide rail is installed.By being divided into two parts to install respectively vertical guide rail, and devise the installation reference as vertical guide rail of steel model and plumb bob vertical, the setting accuracy of vertical guide rail can be improved, the success ratio of installing is high, and wide accommodation, generally can be applicable to accurate location and the installation of various large-scale vertical guide rail.
Accompanying drawing explanation
Figure 1A is the distribution graph of embodiment of the present invention vertical guide rail;
Figure 1B is the constructional drawing of embodiment of the present invention vertical guide rail;
Fig. 2 A is the cutting schematic diagram of embodiment of the present invention stern guide rail;
Fig. 2 B is the cutting schematic diagram of embodiment of the present invention bow side guide;
Fig. 2 C is the cutting schematic diagram of embodiment of the present invention bow intermediate rail;
Fig. 3 embodiment of the present invention steel model is surveyed drawn the structural representation that relevant installation position checks line;
Fig. 4 is the implementation process of the installation method of embodiment of the present invention vertical guide rail;
Fig. 5 is the line schematic diagram of embodiment of the present invention hull bottom;
Fig. 6 is the schematic diagram after embodiment of the present invention steel model is installed;
Fig. 7 A is the schematic diagram of the embodiment of the present invention first machine frame;
Fig. 7 B is the schematic diagram of the embodiment of the present invention first machine frame;
Fig. 7 C is the schematic diagram of embodiment of the present invention adjustment plate.
Description of reference numerals: stern guide rail 1, bow side guide 2, bow intermediate rail 3, rail web 4, guide rail panel 5, guide rail reinforced rib 6, guide rail bracket 7, left steel model 8, right steel model 9.
Detailed description of the invention
In order to make the application the technical staff in the technical field more clearly understand the application, below in conjunction with accompanying drawing, by specific embodiment, technical scheme is described in detail.
In embodiments of the present invention, description guide rails assembling method mainly for as if the combined vertical guide rail of sheet material.
Specifically, the framing member quantity of vertical guide rail of the present invention is a lot, and weight and volume is all very huge, and such as: weld by sheet material the combined vertical guide rail formed, its weight and volume is all larger, long more than 10 rice, weight is about 6.5 tons.
Concrete introduction is carried out below for vertical guide rail of the present invention.
See Figure 1A, it is the distribution graph of the vertical guide rail related in the present invention.
Divide according to the position in hull, vertical guide rail can be divided into: stern guide rail 1, bow side guide 2, bow intermediate rail 3.
And when classifying according to parts, referring to Figure 1B, be the structural representation of the vertical guide rail that the present invention relates to.
In fig. ib, vertical guide rail specifically comprises one or several parts following, that is: rail web 4, guide rail panel 5, guide rail reinforced rib 6, guide rail bracket 7.
Because the weight and volume of vertical guide rail is all larger, therefore, for the ease of in-site installation and lifting, before installation vertical guide rail, the forming member of vertical guide rail can be cut at least two parts.Such as: each vertical guide rail can cut into upper and lower two parts: the first half guide rail and the latter half guide rail.
Divide according to structure:
The first half guide rail comprises: guide rail panel 5, rail web 4, guide rail bracket 7, guide rail reinforced rib 6.
The latter half guide rail comprises: guide rail panel 5, rail web 4, guide rail bracket 7, guide rail reinforced rib 6.
Divide according to position:
The first half guide rail comprises: the first half guide rail of stern guide rail 1, the first half guide rail of bow side guide 2, the first half guide rail of bow intermediate rail 3.
The latter half guide rail comprises: the latter half guide rail of stern guide rail 1, the latter half guide rail of bow side guide 2, the latter half guide rail of bow intermediate rail 3.
In addition, the butt seam of upper and lower two parts guide rail needs deck in ship structure position of staggering, that is: the butt seam of upper and lower two-part guide rail and deck in ship structure can not in the same horizontal line, to avoid the overlaps of weld seam.Such as, the butt seam of upper and lower two-part guide rail is arranged on the above 300mm place of lower deck.
The end opening of the first half guide rail leaves surplus, cutting when building berth is installed.In addition, rail web 4 also leaves surplus, can carry out measurement cutting, to guarantee the squareness, planeness etc. of vertical guide rail according to the squareness of bulkhead.
Referring to Fig. 2 A-Fig. 2 C, it is the cutting schematic diagram of the vertical guide rail of each position.
Wherein, Fig. 2 A is the cutting schematic diagram of stern guide rail 1.Stern guide rail 1 is divided into the first half guide rail and the latter half guide rail.The end opening of the first half guide rail leaves 50mm surplus.It should be noted that in actual applications, the surplus of the end opening of the first half guide rail can be determined according to actual conditions.
Wherein, Fig. 2 B is the cutting schematic diagram of bow side guide 2.Bow side guide 2 is also divided into the first half guide rail and the latter half guide rail.The end opening of the first half guide rail leaves 50mm surplus.It should be noted that in actual applications, the surplus of the end opening of the first half guide rail can be determined according to actual conditions.
Wherein, Fig. 2 C is the cutting schematic diagram of bow intermediate rail 3.Bow intermediate rail 3 is also divided into the first half guide rail and the latter half guide rail.The end opening of the first half guide rail leaves 50mm surplus.It should be noted that in actual applications, the surplus of the end opening of the first half guide rail can be determined according to actual conditions.
In addition, owing to vertical guide rail be divide into two parts, therefore vertical guide rail before welding, first can check the groove situation of rail web 4, and remove the influential various foreign material of butt welded seam quality such as the iron rust at weldment joint surface (fusion face) and edge, oxide skin, greasy dirt, mud, paint and moisture, reduce the impact of various foreign material on vertical guide rail setting accuracy.
Because the present invention devises steel model, below first introduce for steel model.
Steel model makes to be elevated based on fin keel, and on steel model, also can survey the relevant installation position inspection line drawing vertical guide rail and lifting fin keel.Steel sample making well after, be arranged on hull bottom, as the installation reference of vertical guide rail.
Specifically, the manufacturing process of steel model is:
First lifting fin keel is manufactured.After lifting fin keel manufacture completion, carry out annealing and stress relief.Then, the projecting plane measuring lifting fin keel makes steel model.
Wherein, described steel model makes according to the maximum projection plane of lifting fin keel, the projection line of lifting fin keel gets the maximum offset of lifting fin keel outside face, that is: just model is the maximum projection plane of lifting fin keel, the benefit done like this is, make steel model and lifting fin keel on two dimensional surface, have maximum similarity, line and the setting accuracy of vertical guide rail can be ensured further.
After making steel model, need to survey on steel model and draw relevant installation position inspection line (that is: the relevant installation position of vertical guide rail and lifting fin keel checks line).Please see Figure 3, is steel model is surveyed drawn the structural representation that relevant installation position checks line.
These relevant installation positions check that line comprises: actual lifting line of centers, longitudinal centerline, stern guide rails assembling position, first plumb bob vertical control point, theoretical lifting line of centers/RF95+150 positioning angle square wire tag, the length indication of distance RF99 wall, stern intermediate rail line of centers position, installation position below bow side guide lower deck, the second plumb bob vertical control point, bow intermediate rail installation position.These relevant installation positions check that line can regard mark as, as the reference that the line of vertical guide rail scene is installed and monitored.
The mark meaning of steel model is as follows respectively:
1, longitudinal centerline (the straight line O of steel model
2o
1).---the located lateral mark of steel model on planking.
2, theoretical lifting line of centers/FR95+150 positioning angle square wire tag (straight line KL), and the length indication of distance FR99 wall.---the longitudinal register mark of steel model on planking.
3, actual lifting centre line marks, actual hoist point (some O).---the actual center gravity position of lifting fin keel manufacture completion rear (containing scientific investigation equipment).
4, theoretical first plumb bob vertical control point (some J) and the second plumb bob vertical control point (some H).---the sag point position that plumb bob vertical is corresponding.
5, installation position below stern guide rails assembling position, bow intermediate rail line of centers position (straight line CD), bow intermediate rail installation position, bow side guide lower deck.---installation R point during guide rail location and installation.
6, other gauge points: some C, D, F.The meaning represented respectively sees the following form 1:
Table 1
| point | meaning |
| c | bow side guide installs reference point, corresponding with the C on bow side guide. |
| d | bow intermediate rail installs reference point, corresponding with the D in bow intermediate rail. |
| f | stern guide rails assembling reference point is corresponding with the F on stern guide rail. |
Introduce concrete installation method below.
Before the mounting, need to check whether installation environment and the parts used are got ready, as follows specifically:
1, check that guide rail carrys out goods quantity; Length size correctness; Check that latching device carrys out goods quantity.
2, check the machinework face straightness accuracy≤1.5mm of every root guide rail panel 5.
3, check the mark on vertical guide rail, avoid in-site installation mistake.Specifically, vertical guide rail can design corresponding mark, be used for distinguishing other guide rails, such as table 2, be the mark of each guide rail.
Table 2
4, check the size of steel model and the line situation of correspondence.
Due to manufacturing errors, left and right lifting fin keel size is variant, and therefore the left steel model 8 of actual fabrication, right steel model 9 should have certain difference.Size tolerance requirements ± the 0.5mm of two steel models, profile line style symmetry requirement≤1mm.
Please refer to Fig. 4 below, specifically introduce the implementation process of the installation method of vertical guide rail of the present invention.
S1, rules in hull bottom according to building berth general assembly line.
Before line, guarantee that the welding of all sectionalizing joints is complete, associated fragment rigging out, bulkhead distortion correction by flame is complete, carried out cabin tightness test in lift well, main accommodation outfit and weight have been equipped with and have gone on board, and also need if desired to carry out counterweight process in a pre-installation.
See Fig. 5, it is the line schematic diagram of hull bottom.
In Figure 5, the line on bottom plating includes the line of hull center, and angle square line is rule, the line of larboard lifting fin keel line of centers, the line of starboard lifting fin keel line of centers.These main effects of ruling are: as the installation reference of steel model.
Because reality builds error, body section line of centers may with building berth general assembly benchmark---there is certain deviation in hull line of centers.Therefore, when actual installation, steel model is when installing location, and its main reference for installation (line of centers, horizontal surface, vertical surface) needs to be consistent with building berth general assembly benchmark.
S2, according to line, installs steel model in hull bottom.
In described hull bottom, steel model is installed, specifically comprises:
Based on the line of described hull center, the line of described angle square line, the line of described larboard lifting fin keel line of centers, left steel model 8 is installed; On described left steel model 8, the longitudinal centerline of described left steel model 8 correspondence and the line of described larboard lifting fin keel line of centers overlap; Angle square line coincidence on the line of described angle square line and described port side hull plate.The intersection point of the line of described angle square line and the line of described larboard lifting fin keel line of centers and actual lifting line of centers coincidence corresponding to described left steel model;
Based on the line of described hull center, the line of described angle square line, the line of described larboard lifting fin keel line of centers, right steel model 9 is installed; On described right steel model 9, longitudinal centerline corresponding on described right steel model 9 and the line of described starboard lifting fin keel line of centers overlap; Angle square line coincidence on the line of described angle square line and described starboard hull plate.The intersection point of the line of described angle square line and the line of described starboard lifting fin keel line of centers and actual lifting line of centers coincidence corresponding to described right steel model.
According to bottom plating line, steel model and hull bottom spot welding are fixed.
In addition, can be for further processing according to bottom plating line.
First, utilize laser transit larboard to be elevated the line of fin keel line of centers and starboard lifting fin keel line of centers to rule and transit to each self-corresponding transcerse bulkhead respectively, as transition line of centers.
Specifically, with laser transit, larboard is elevated the line of fin keel line of centers and transits to transcerse bulkhead, with laser transit, starboard is elevated the line of fin keel line of centers and transits to transcerse bulkhead.The position of two transcerse bulkheads can be FR92 transcerse bulkhead and FR98 transcerse bulkhead.
Transition line of centers is used for guidance and surveys and draw a guide rails assembling line (be mainly used in install web and panel).After surveying and having drawn, guide rails assembling line and transition line of centers are parallel on bulkhead.Specifically, the transition line of centers of larboard lifting fin keel line of centers line correspondence is used to combine with left steel model 8, installs the vertical guide rail of left steel model 8 correspondence.The transition line of centers of starboard lifting fin keel line of centers line correspondence is used to combine with right steel model 9, installs the vertical guide rail of right steel model 9 correspondence.
Secondly, utilize laser transit the line of angle square line to be transitted on the bulkhead of left and right, and carry out foreign punch mark.Line on the bulkhead of left and right is used as the traversal marker on the bulkhead of left and right, draws the hookup wire being parallel to the bow side guide of this line according to theoretical.
Specifically, be that left and right steel model 8,9 is fixed with hull bottom spot welding respectively, such as Fig. 6, be fixing after the position view of two steel models.
For left steel model 8, theory on steel model promotes the larboard fin keel line of centers of line of centers/FR95+150 positioning angle square wire tag and shell lining out and angle square line overlaps respectively.
For left steel model 9, theory on steel model promotes the starboard fin keel line of centers of line of centers/FR95+150 positioning angle square wire tag and shell lining out and angle square line overlaps respectively.
S3, based on steel model, determines the plumb bob vertical of the latter half guide rail.
In fact plumb bob vertical employs wire, and owing to steel model there being two plumb bob vertical control points (the first plumb bob vertical control point and the second plumb bob vertical control point), the installation reference of respective plumb bob vertical as guide rail will be installed by each plumb bob vertical control point place.Wherein, the plumb bob vertical installed in the first plumb bob vertical control point is the installation reference being used as stern guide rail 1.The plumb bob vertical installed in the second plumb bob vertical control point is the installation reference as bow intermediate rail 3 and bow side guide 2.
Therefore, need to utilize machine frame that respective plumb bob vertical is installed respectively, plumb bob vertical is fixed in space, and the precision of plumb bob vertical can be ensured.Be described for the plumb bob vertical installing the first plumb bob vertical control point below.The plumb bob vertical of the second plumb bob vertical control point is similar.
Specifically, machine frame, according to the difference of mounting object and position, can be divided into following several machine frame.
First machine frame, is arranged on upper deck place.Such as, upper deck is arranged on apart from baseline 8900mm place.
Second machine frame, is arranged on hull bottom region.
3rd machine frame, is arranged on fore castle deck place.
The Main Function of machine frame is to lift plumb bob vertical, ensures the vertical of plumb bob vertical and precision.
First the first machine frame and the second machine frame are introduced below.
First machine frame is set at upper deck (apart from baseline 8900mm) place, the fin keel opening reinforcement (solder type angle steel) of outside plate arranges the second machine frame.
Shown in the following Fig. 7 A in installation site of the first machine frame, shown in the following Fig. 7 B in installation site of the second machine frame.
See Fig. 7 C, it is the schematic diagram of adjustment plate.Wherein, adjustment plate is provided with centre hole, and the Main Function of centre hole is for running through plumb bob vertical, makes it nature and passes perpendicularly through centre hole, be then fixed.
And when determining plumb bob vertical suspension centre, first determine the plumb bob vertical messenger wire point on the first machine frame according to the transition line of centers on bulkhead.
Then, the spot welding of adjustment plate is fixed on the first machine frame, and by the centre hole of plumb bob vertical through the adjustment plate at upper deck place, hangs plumb bob vertical to hull bottom.By a plumb bob vertical lower end vertical some sway, be adjusted to the first plumb bob vertical control point place of installing model, determine plumb bob vertical sag point center.
Second machine frame adopts the position of " ten " wordline determination vertical line crossing point.By " ten " wordline point of intersection that the central aperture of adjustment plate is drawn.The adjustment plate of interior bottom is fixed in spot welding, draws φ 0.5mm wire to be fixed respectively, to determine the installation of plumb bob vertical.
The plumb bob vertical messenger wire point of the first machine frame is according to transition line of centers, and horizontal guy plumb bob vertical is determined.
Second machine frame adopts the position of " ten " wordline determination plumb bob vertical crossing point.
S4, based on the plumb bob vertical of steel model and the latter half guide rail, installs the latter half guide rail.
Before the mounting, first according to bulkhead being surveyed the guide rails assembling line and plumb bob vertical drawn, guide rail surplus be measured, and marks guide rail surplus line of cut.According to actual surplus line of cut cutting guide rail surplus, and double groove is offered to guide rail.The horizontal support bracket surplus of guide rail is cut.
Described the latter half guide rail comprises: the latter half guide rail of stern guide rail 1, the latter half guide rail of bow side guide 2, the latter half guide rail of bow intermediate rail 3;
The described plumb bob vertical based on described steel model and described the latter half guide rail, described the latter half guide rail is installed, specifically comprises:
Based on described plumb bob vertical, the latter half guide rail of described stern guide rail 1 is lifted and is welded on described stern guide rail 1 installation position;
Based on described plumb bob vertical, the latter half guide rail of described bow side guide 2 is lifted and is welded on below described bow side guide 2 lower deck installation position;
Based on described plumb bob vertical, the latter half guide rail of described bow intermediate rail 3 is lifted and is welded on described stem intermediate rail installation position.
Concrete step is:
1, respectively stern guide rail 1, bow side guide 2, bow intermediate rail 3 are lifted and put to deep-well.
Put height consistent with guide rail actual installation height.
2, indicate according to each guide rails assembling on plumb bob vertical and steel model, determine the installation site of each guide rail.
Following condition need be met during guide rail location:
(1) meet stern guide rail 1, bow side guide 2, bow intermediate rail 3 panel, guide rail panel 5 is overlapped with steel model deviation≤1mm, plane verticality≤1mm;
(2) distance between guide rail panel 5 is met.Namely with fin keel spacing: bow side guide 2, bow intermediate rail 3 are 10mm with the spacing of fin keel, and stern guide rail 1 and fin keel spacing are 18mm.
(3) each guide rail cutting surplus≤50mm.
According to guide rails assembling line and vertical wire, measure guide rail surplus, and mark guide rail surplus line of cut.
3, according to actual surplus line of cut cutting guide rail surplus, double groove is offered to guide rail.
4, the horizontal support bracket surplus of guide rail is cut.
5, guide rail is assembled to installation position, and spot welding is fixed, and every about 300mm highly sets up horse plate and is fixed.Alkaline low-hydrogen electrode should be used during assembling to be welded and fixed.
When welding, need to do following work:
Rail web 4 groove situation should be checked before rail welding.
The influential various foreign material of butt welded seam quality such as the iron rust at weldment joint surface (fusion face) and edge, oxide skin, greasy dirt, mud, paint and moisture should be removed before welding.
Small area analysis is adopted, little heat input welding during welding.During welding, adopt solid wire welding, to reduce welding deformation as far as possible.
When rail web 4 welds with bulkhead, backstep sequence should be adopted to weld, back cover again after back root cleaning.
To the slow weldering in the region of lower part guide rail upper end (i.e. the upper and lower butt seam place of the every root guide rail) 300mm that should have an appointment.
Postwelding conscientiously should remove welding slag, splashes, and by level and smooth for inner side polishing.
After welding, the distance of the upper, middle and lower of steel wire vertical line and guide rail panel 5 should be monitored, namely consider guide rail deformation.Inspection declaration after postwelding 24 hours timeliness.
S5, determines the plumb bob vertical of the first half guide rail.
Be placed on by adjustment eye plate on the 3rd machine frame (structure similar to the first machine frame), plumb bob vertical is through the centre hole of adjustment plate, and fine setting plumb bob vertical lower end, makes plumb bob vertical lower extreme point overlap with the centre hole of the adjustment plate of the first machine frame.
Specifically, the spot welding of adjustment plate is fixed on the 3rd machine frame.Then by the suspension centre that the 3rd machine frame is determined, again hang plumb bob vertical to bottom plating, check whether sag point overlaps with the first vertical money control point on steel model.If there is deviation, correction upper end hoisting point position should be carried out in time, prevent the generation of accumulated error.With the steel rope of φ 0.5mm, the second machine frame is connected with the adjustment eye plate centre hole on the 3rd machine frame.Upper part guide rails assembling is determined with reference to vertical line.
S6, based on the plumb bob vertical of steel model and the first half guide rail, installs part guide rails.
The actual shape of dispatching from the factory of bow side guide 2 the first half guide rail is by lower end butt seam upwards, is progressively offset to top (namely lower end width is 583mm, and upper end is wide is 563mm).Bow side guide 2 the first half guide rail upper end and flipper plate theory gap are 30mm.And distance elevating fin keel theoretical gap in bow side guide 2 lower end is 10mm.
Described the first half guide rail comprises: the first half guide rail of stern guide rail 1, the first half guide rail of bow side guide 2, the first half guide rail of bow intermediate rail 3;
The described plumb bob vertical based on described steel model and described the first half guide rail, described the first half guide rail is installed, specifically comprises:
Based on described plumb bob vertical, weld the first half guide rail of described stern guide rail 1 and the latter half guide rail of described stern guide rail 1;
Based on described plumb bob vertical, weld the first half guide rail of described bow side guide 2 and the latter half guide rail of described bow side guide 2;
Based on described plumb bob vertical, weld the first half guide rail of described bow intermediate rail 3 and the latter half guide rail of described bow intermediate rail 3.
According to plumb bob vertical, determine upper part guide rail surplus.Rail web 4 marks surplus line.
Cutting guide rail surplus, guide rail groove is offered at scene.
Horizontal bracket surplus is cut.
Spot welding assembling vertical guide rail, approximately every 300mm highly sets up horse plate and is fixed.Alkaline low-hydrogen electrode should be used during assembling.
The welding of upper part guide rail is identical with the welding method of the latter half guide rail, does not repeat them here.
It should be noted that upper and lower rail attachment point can not have obvious knuckle phenomenon, if there is obvious knuckle, should correct.
Upper rail panel, lower guideway panel weld seam should polish by postwelding.
Guide rail panel after having welded, should check its surperficial straightness accuracy, checks the spacing with the gauge point on steel model (installation model), and is confirmed by device service engineer scene.
In order to ensure the quality of welding, can weld, while the distance between monitoring vertical guide rail and wire, checking its thermal deformation situation.And when rail web 4 welds with bulkhead, be reduce welded stress distortion, backstep sequence can be adopted to weld, back cover again after back root cleaning.
By one or more embodiment of the present invention, the present invention has following beneficial effect or advantage:
The invention discloses a kind of vertical guide rail erecting and welding method, comprising: rule in hull bottom according to building berth general assembly line; According to described line, in described hull bottom, steel model is installed; Wherein, the area of described steel model is the maximal projection area of described lifting fin keel; Based on described steel model, determine the plumb bob vertical of described the latter half guide rail; Based on the plumb bob vertical of described steel model and described the latter half guide rail, described the latter half guide rail is installed; Determine the plumb bob vertical of described the first half guide rail; Based on the plumb bob vertical of described steel model and described the first half guide rail, described the first half guide rail is installed.By being divided into two parts to install respectively vertical guide rail, and devise the installation reference as vertical guide rail of steel model and plumb bob vertical, the setting accuracy of vertical guide rail can be improved, the success ratio of installing is high, and wide accommodation, generally can be applicable to accurate location and the installation of various large-scale vertical guide rail.
Although described the preferred embodiment of the application, one of ordinary skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the application's scope.
Obviously, those skilled in the art can carry out various change and modification to the application and not depart from the spirit and scope of the application.Like this, if these amendments of the application and modification belong within the scope of the application's claim and equivalent technologies thereof, then the application is also intended to comprise these change and modification.
Claims (10)
1. a vertical guide rail erecting and welding method, is characterized in that, described vertical guide rail comprises the first half guide rail and the latter half guide rail, and described method comprises:
Rule in hull bottom according to building berth general assembly line;
According to described line, in described hull bottom, steel model is installed; Wherein, described steel model is the maximum projection plane's making acquisition based on lifting fin keel;
Based on described steel model, determine the plumb bob vertical of described the latter half guide rail;
Based on the plumb bob vertical of described steel model and described the latter half guide rail, described the latter half guide rail is installed;
Determine the plumb bob vertical of described the first half guide rail;
Based on the plumb bob vertical of described steel model and described the first half guide rail, described the first half guide rail is installed.
2. the method for claim 1, it is characterized in that, relevant bits on described steel model checks that line comprises: actual lifting line of centers, longitudinal centerline, stern guide rails assembling position, installation position below bow side guide lower deck, stem intermediate rail installation position, first plumb bob vertical control point, the second plumb bob vertical control point.
3. method as claimed in claim 2, it is characterized in that, described line comprises: rule in hull center, and angle square line is rule, the line of larboard lifting fin keel line of centers, the line of starboard lifting fin keel line of centers.
4. method as claimed in claim 3, is characterized in that, described according to described line, installs steel model, specifically comprise in described hull bottom:
Based on the line of described hull center, the line of described angle square line, the line of described larboard lifting fin keel line of centers, left steel model is installed; On described left steel model, the longitudinal centerline that described left steel model is corresponding and the line of described larboard lifting fin keel line of centers overlap; The intersection point of the line of described angle square line and the line of described larboard lifting fin keel line of centers and actual lifting line of centers coincidence corresponding to described left steel model;
Based on the line of described hull center, the line of described angle square line, the line of described larboard lifting fin keel line of centers, right steel model is installed; On described right steel model, longitudinal centerline corresponding on described right steel model and the line of described starboard lifting fin keel line of centers overlap; The intersection point of the line of described angle square line and the line of described starboard lifting fin keel line of centers and actual lifting line of centers coincidence corresponding to described right steel model.
5. method as claimed in claim 3, is characterized in that, described according to building berth general assembly line after hull bottom is rule, described method also comprises:
Utilize laser transit larboard to be elevated the line of fin keel line of centers and starboard lifting fin keel line of centers to rule and transit to each self-corresponding transcerse bulkhead respectively, as transition line of centers.
6. method as claimed in claim 5, is characterized in that, described based on described steel model, determines the plumb bob vertical of described the latter half guide rail, specifically comprises:
Based on described transition line of centers, determine the plumb bob vertical messenger wire point on the first machine frame;
By the centre hole of described plumb bob vertical through the adjustment plate on described first machine frame, hang described plumb bob vertical to hull bottom;
The vertical point of described plumb bob vertical lower end is adjusted to described first plumb bob vertical control point place to fix.
7. method as claimed in claim 6, it is characterized in that, after hanging described plumb bob vertical to hull bottom, described method also comprises:
Second machine frame is determined the position of vertical line crossing point, and makes described plumb bob vertical through by the adjustment plate on described second machine frame, then described plumb bob vertical is fixed.
8. method as claimed in claim 7, it is characterized in that, described the latter half guide rail comprises: the latter half guide rail of stern guide rail, the latter half guide rail of bow side guide, the latter half guide rail of bow intermediate rail;
The described plumb bob vertical based on described steel model and described the latter half guide rail, described the latter half guide rail is installed, specifically comprises:
Based on described plumb bob vertical, the latter half guide rail of described stern guide rail is lifted and is welded on described stern guide rails assembling position;
Based on described plumb bob vertical, the latter half guide rail of described bow side guide is lifted and is welded on below described bow side guide lower deck installation position;
Based on described plumb bob vertical, the latter half guide rail of described bow intermediate rail is lifted and is welded on described stem intermediate rail installation position.
9. method as claimed in claim 8, it is characterized in that, the described plumb bob vertical determining described the first half guide rail, specifically comprises:
Make described plumb bob vertical through the centre hole of the adjustment plate on the 3rd machine frame, described plumb bob vertical lower extreme point is overlapped with the centre hole of the adjustment plate of the first machine frame.
10. method as claimed in claim 9, it is characterized in that, described the first half guide rail comprises: the first half guide rail of stern guide rail, the first half guide rail of bow side guide, the first half guide rail of bow intermediate rail;
The described plumb bob vertical based on described steel model and described the first half guide rail, described the first half guide rail is installed, specifically comprises:
Based on described plumb bob vertical, weld the first half guide rail of described stern guide rail and the latter half guide rail of described stern guide rail;
Based on described plumb bob vertical, weld the first half guide rail of described bow side guide and the latter half guide rail of described bow side guide;
Based on described plumb bob vertical, weld the first half guide rail of described bow intermediate rail and the latter half guide rail of described bow intermediate rail.
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| CN201510640297.2A CN105383642B (en) | 2015-09-30 | 2015-09-30 | A kind of vertical guide rail erecting and welding method |
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| CN113879482A (en) * | 2021-10-29 | 2022-01-04 | 中船黄埔文冲船舶有限公司 | Sectional carrying synchronous positioning method for lifting fin supporting plate |
| CN113879482B (en) * | 2021-10-29 | 2023-12-26 | 中船黄埔文冲船舶有限公司 | Sectional carrying and synchronous positioning method for lifting fin support plate |
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