CN102407921B - Mounting method for sectional inversely hung rudder arm - Google Patents

Mounting method for sectional inversely hung rudder arm Download PDF

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Publication number
CN102407921B
CN102407921B CN201110256179.3A CN201110256179A CN102407921B CN 102407921 B CN102407921 B CN 102407921B CN 201110256179 A CN201110256179 A CN 201110256179A CN 102407921 B CN102407921 B CN 102407921B
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rudder horn
segmentation
rudder
welding
line
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CN201110256179.3A
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Chinese (zh)
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CN102407921A (en
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蔡益
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广州中船黄埔造船有限公司
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Abstract

The invention provides a mounting method for a sectional inversely hung rudder arm and a precision control method and belongs to the field of ship manufacturing. The mounting method mainly comprises three steps of: horizontally assembling a hung rudder arm; inversely mounting the hung rudder arm in sections; and placing and folding the hung rudder arm on a ship berth in sections. A mounting stage of the hung rudder arm is brought forward to a sectioning stage from a ship berth stage, thereby promoting the sectioning completeness and shortening the ship berth period. The precision control method for mounting and positioning and a welding method for assembling are used for promoting the assembling precision, thereby meeting the technical demand. The mounting method can be widely applied to the ship manufacturing.

Description

A kind of installation method of segmentation upside-down mounting rudder horn

Technical field

The present invention relates to boats and ships and manufacture field, particularly a kind of method that rudder horn was installed in the ship structure segmentation stage.

Background technology

The installation of ship rudder horn, installation method is in the past on building berth, to carry out carrying out separately the installation of rudder horn after segment carrying, lift-launch again, conventionally after waiting for building berth segment folding, welding well just can be carried out the installation exercise of rudder horn, it is that rudder system all cannot install that rudder horn does not install follow-up axle, has increased so significantly time on building berth.Rudder horn lifting difficulty during due to formal dress, the frock that need to be welded under hull is hung code, after adopting crane to hang Stern Post, need the mode that adopts chain block to cross code to hang the below of moving installation position to, then also need hang code at rudder stock the inside welding tooling, adopt chain block up to draw, not only lifting workman's work capacity is very large, with regard to drawing of chain block, just hang and need the time, needing 8 heavy industrys to hang to draw moves, after lifting puts in place assembling and positioning also needed heavy industry to coordinate and formal dress rudder horn after welding job be mostly to weld in the overhead position, welding efficiency is low, large and the welding quality of labor strength is difficult to ensure card, and on building berth, each work post personnel are in construction, service conditions is poor, also affected operating efficiency.In segmentation, after berth combination, i.e., after main body moulding, take the method for formal dress, the object of doing is like this mainly in order to guarantee setting accuracy, prevents distortion.But building berth is the narrow resources of shipyard, present most of shipyards, in order to improve Speed of Shipbuilding, advance shipbuilding revolving die, take segmentation integraty as target, improve lift-launch speed, shorten time on building berth.

Summary of the invention

Technical matters to be solved by this invention, is through Optimization Technology, in the segmentation stage, rudder horn is installed, and shortens time on building berth.

The installation method of a kind of segmentation upside-down mounting rudder horn of the present invention, comprises the steps:

One, horizontal assembling rudder horn: by the independent horizontal field weld of each assembly of rudder horn;

Two, segmentation upside-down mounting rudder horn: segmentation is inverted to assembling rudder horn;

Three, berth combination in rudder horn segmentation: berth combination in the rudder horn segmentation that second step is assembled.

The present invention also can do following improvement:

Step 1, horizontal assembling rudder horn comprise the following steps:

A) lay the independent moulding bed that can place rudder horn;

B) check whether steel casting meets the requirements;

C) location and installation rudder stock neck bearing steel casting, rudder pin bearing steel casting;

D) each steel casting and steel plate are welded;

E) before rudder horn tread flaking, the relevant datum lines such as the cross centre line of helmport, horizon are marked and stamp foreign dotting punch;

F), after rudder horn tread flaking is stood up, carry out welding and batch benefit grinder of another outside face and do;

Step 2, segmentation upside-down mounting rudder horn comprise the following steps:

G) first the datum lines such as line of centers of the hull line of centers of segmentation, horizon, rudder horn are marked, and stamp foreign dotting punch;

H) adopt mold loft template and data cutting rudder horn and base plate opening;

I) location rudder horn, makes the helmport line of centers of rudder horn vertical with subsection hull line of centers, helmport line of centers aligns with positioning rib bit line;

J) setting height(from bottom) of rudder horn on root Ju drawing, from the platform theoretical water horizontal line of segmentation to rudder horn rudder stock neck bearing steel casting the distance value of actinal surface position installation;

K) after orientation assemble, first weld framing member, the sheet material of segmentation, welding adopt therefrom to end to end and left and right carry out and want even numbers welder symmetrical welding, the fillet welding in the vertical position of first welding structure docking, the flush fillet weld of welding structure and landing slab and outside plate, base plate and fillet welding in the overhead position again, the butt seam of outside plate and base plate is just weldering finally;

L), after the framing member of segmentation and sheet material welding complete, squareness and the levelness deviation of repetition measurement rudder horn line of centers, and its deviate must not be greater than 3mm;

M) welding of rudder horn body and segmental structure, also will adopt even numbers welder symmetrical welding, first welds vertical position welding, and the fillet welding in the overhead position of rear weldering landing slab, base plate is then carried out flush fillet weld after the outer back chipping of base plate;

N), after segmentation prepackage, welding rudder horn complete, measure rudder horn line of centers squareness, position level line face to the distance of actinal surface under rudder horn neck bearing steel casting, and submit to and apply for checking and examination;

In step 3, rudder horn segmentation, berth combination comprises the following steps:

O) rudder horn segmentation, when upper building berth general assembly is closed up, longitudinally puts back deflection in advance; With the theoretical longitudinal register at corresponding rib position to the main frame gear case positioning rib position place of rudder horn line of centers, and place 3mm welding contracted quantity closing up mouth;

P) with steel wire, pull out rudder horn line of centers;

Q) to take rudder horn line of centers respective ribs position baseline to the end opening horizon of rudder horn rudder stock neck bearing steel casting be origin reference location to short transverse;

While r) closing up greatly mouthful weld seam, the fillet welding in the vertical position of first welded structure docking, the butt seam of rear weldering outside plate, landing slab, require to adopt even numbers welder from bottom to up symmetrical welding, also can be divided into several weld seam sections and carry out symmetrical welding.

A) part in step 1, horizontal assembling rudder horn, installs between described independent moulding bed template that longitudinal tie rod is strengthened, four jiaos of moulding beds make diagonal brace connection reinforcement with angle steel, to guarantee the intensity of moulding bed.

B in step 1, horizontal assembling rudder horn) part, the specific requirement that checks steel casting is that steel casting surface should be smooth clean, pore-free, crack and scab defects, the faying surface part contacting with outside plate should guarantee the faying surface degree of depth and polish flat, to guarantee line style fairing.

C in step 1, horizontal assembling rudder horn) part, the localization method of described location and installation rudder stock neck bearing steel casting, rudder pin bearing steel casting adopts and draws steel wire or beat laser.

C in step 1, horizontal assembling rudder horn) part, positioning requirements is, suitable for reading be no more than ± 2mm of distance error of the lower actinal surface of rudder stock neck bearing steel casting and be no more than ± 1mm of rudder pin bearing coaxiality error, rudder stock neck bearing steel casting and rudder pin bearing steel casting;

J in step 2, segmentation upside-down mounting rudder horn) part, the position error of described location and installation must not be greater than 2mm, the error of perpendicularity of rudder horn (5) helmport line of centers and segment level line face must not be greater than 1.5mm, and the right alignment of the upper and lower helmport of rudder horn (5) must not be greater than 1.5mm;

P in berth combination in step 3, rudder horn segmentation) part, requires described line of centers to be, its and horizontal perpendicularity deviation must not be greater than 2mm, and it should be crossing and must not the be greater than ± 3mm of deviate of theoretical centerline with axle;

Q in berth combination in step 3, rudder horn segmentation) part, described only allow-2mm~0mm of origin reference location error;

After in rudder horn segmentation, berth combination has been welded, the line of centers squareness of measurement rudder horn, rudder horn neck bearing steel casting end opening horizon are to the distance of baseline, the distance at place, rudder horn line of centers respective ribs position to main frame gear case positioning rib position, require centerline deviation must not be greater than 3mm, height tolerance is-5mm~+ 1mm that front and back position deviation is ± 3mm;

While relating to the welding of steel part and steel plate, need preheating; Postwelding wants butt welded seam to carry out low tempering, and then wraps up with asbestos cloth; Preferably 100 ℃~120 ℃ of described preheating temperatures; Described welding process is selected low hydrogen electrode welding; Preferably 200 ℃~250 ℃ of described low tempering temperatures; The described low tempering time is 40 minutes to 2 hours; Described parcel temperature retention time is preferably incubated 4 hours to 6 hours.

F in step 1, horizontal assembling rudder horn) part, described benefit grinder also comprises the heaving or distortion etc. of part, adopts firer's calibration and the calibration of colding pressing.

I in step 2, segmentation upside-down mounting rudder horn) part, location rudder horn, the method for make the helmport line of centers of rudder horn vertical with subsection hull line of centers, helmport line of centers aliging with positioning rib bit line is for drawing steel wire.

O in berth combination in step 3, rudder horn segmentation) part, described longitudinally to put back in advance distortion value be that 1200mm places 0.5mm.

Compared with prior art, the invention has the beneficial effects as follows:

1, the installation phase of rudder horn is advanceed to the segmentation stage from the building berth stage, improved segmentation integraty, shortened time on building berth, the efficiency of raising, meets the requirement of Modern Shipbuilding Mode.

2, the welding method in the accuracy control method in locating by installation and assembling has improved the accuracy rate of assembling, meets technical requirements.

3, now by the independent horizontal field weld of rudder horn assembly, rudder horn segmentation upside-down mounting, has not only solved the setting accuracy of rudder horn, and has reduced and installed the time of rudder horn on building berth again; By segmentation upside-down mounting rudder horn, during lifting rudder horn, adopt crane lifting and 2 heavy industrys to coordinate, only need just can complete for 2 hours lifting and putting in place; Field weld is all that downhand welding is main, and welding efficiency is high and welding quality is better; Block assembly welding is all can complete between internal field or indoor cart, and welding is installed together with segmental structure, do not need slow dress sectional members, solved the incomplete problem of segmentation, improved the integrity of segmentation, particularly only have welding equipment work industry during segmentation upside-down mounting rudder horn, service conditions is single and condition is better, efficiency is higher; Segmentation upside-down mounting rudder horn does not need to take time on building berth, by segmentation upside-down mounting rudder horn, can shorten 16 days time on building berth, to improving a building berth year shipbuilding number, has played vital effect, and benefit is obvious.

Accompanying drawing explanation

Fig. 1 is horizontal assembling rudder horn schematic diagram;

Fig. 2 is segmentation upside-down mounting rudder horn schematic diagram;

Fig. 3 is segmentation upside-down mounting rudder horn A-A schematic diagram;

Fig. 4 is rudder horn segmentation berth combination schematic diagram;

In figure: 1. band iron tie rod, 2. angle steel, 3. platform, 4. plane moulding bed, 5. rudder horn, 6. segmentation.

The specific embodiment

Embodiment 1

The horizontal field weld of rudder horn:

As shown in Figure 1, by rudder horn 5 line styles, make a jig frame special.Before upper moulding bed is assembled, to check whether steel casting meets the requirements.Rudder horn bed board, member assembling and positioning are installed on moulding bed, guarantee the vertical and data between the two of the lower actinal surface of rudder stock neck bearing steel casting and the upper actinal surface of rudder pin bearing steel casting.By each steel casting and Plate Welding.Before rudder horn 5 tread flakings, the relevant datum lines such as the cross centre line of helmport, horizon be marked and stamp foreign dotting punch.Rudder horn 5 tread flakings instead after one's death, are carried out welding and batch benefit grinder of another outside face and are done.Some annexes that are connected with segmentation bottom outer K andante (shoe), member are installed in this stage owing to being not easy to, can first spot welding, and after waiting for that rudder horn 5 is installed in segmentation 6, then position and assemble and weld.

Segmentation upside-down mounting rudder horn:

As shown in Figure 2 and Figure 3, rudder horn 5, before segmentation 6 assemblings, first will, by the datum lines such as line of centers of the hull line of centers of segmentation 6, horizon, rudder horn 5, mark and stamp foreign dotting punch.The annexes such as the insert plate being connected with rudder horn in segmentation 6 structures, brace panel, after waiting for that rudder horn 5 locates, assembles, then assemble and weld.Adopt setting-out that model and the data that rudder horn 5 and base plate opening are installed are accurately provided, open the opening of rudder horn base plate to rudder horn 5 is installed.Rudder horn 5, in the assembling and positioning of segmentation 6, guarantee that the helmport line of centers of rudder horn 5 and vertical, the helmport line of centers of segmentation 6 hull line of centerss align with positioning rib bit line.During orientation assemble, the height of the rudder horn installation requirement of root Ju drawing, require from the platform theoretical water horizontal line of segmentation to rudder horn rudder stock neck bearing steel casting the distance value (as the Δ L in Fig. 3) of actinal surface position installation.After assembling, first weld the framing member of segmentation, the connection of sheet material, during welding will adopt minute to end to end and left and right carry out and want even numbers welder, symmetrical welding.The fillet welding in the vertical position of first welding structure docking, then flush fillet weld and the fillet welding in the overhead position of welding structure and landing slab and outside plate, base plate, the butt seam of outside plate and base plate finally just welds.After the framing member of segmentation and sheet material welding complete, squareness and the levelness deviation of repetition measurement rudder horn line of centers, and its deviate must not be greater than 3mm.The welding of rudder horn 5 bodies and segmentation 6 structures, also will adopt even numbers welder symmetrical welding, first welds vertical position welding, and the fillet welding in the overhead position of rear weldering landing slab, base plate is then carried out flush fillet weld after the outer back chipping of base plate.After segmentation prepackage, welding rudder horn complete, measure rudder horn line of centers squareness, position level line face to the distance of actinal surface under rudder horn neck bearing steel casting, and submit to and apply for checking and examination.

Berth combination in rudder horn segmentation:

As shown in Figure 4, when rudder horn segmentation is closed up in upper building berth general assembly, longitudinally put back in advance deflection.In rudder horn segmentation, building berth closes up greatly when location, guarantee the theoretical with the place, corresponding rib position to main frame gear case positioning rib position of rudder horn line of centers, and will place 3mm welding contracted quantity closing up mouth.When location is closed up greatly in segmentation, based on rudder horn, as benchmark, also to pull out rudder horn line of centers with steel wire.It is origin reference location that short transverse be take the corresponding rib position baseline of rudder horn line of centers to the end opening horizon of rudder horn rudder stock neck bearing steel casting.When mouthful weld seam is closed up greatly in welding, the fillet welding in the vertical position of first welded structure docking, the butt seam of rear weldering outside plate, landing slab, adopt even numbers welder welding, from bottom to up symmetrical welding, also can be divided into several weld seam sections and carry out symmetrical welding.

Embodiment 2

The horizontal field weld of rudder horn:

As shown in Figure 1, press rudder horn 5 line styles and make a jig frame special, employing has the material of sufficient intensity and rigidity, installs that longitudinal band iron tie rod 1 is strengthened, four jiaos of moulding beds make diagonal brace connection reinforcement with angle steel 2, to reduce the welding deformation of rudder horn 5 as far as possible between moulding bed template.Before upper moulding bed is assembled, will check steel casting, steel casting surface is smooth clean, pore-free, crack and the defect such as scab, and faying surface contact with outside plate partly should guarantee the faying surface degree of depth and polish flat, to guarantee line style fairing.When rudder horn bed board, member assembling and positioning are installed on moulding bed, the method that employing is drawn steel wire or beaten laser is located the location of rudder stock neck bearing steel casting, rudder pin bearing steel casting, guarantee the vertical and data between the two of the lower actinal surface of rudder stock neck bearing steel casting and the upper actinal surface of rudder pin bearing steel casting, and these two steel casting coaxiality errors must not be greater than 1mm, must not be greater than ± 2mm of distance error.The welding of steel casting and steel plate, needing preheating, preheating temperature is 100 ℃~120 ℃, and will adopt low hydrogen electrode welding.Postwelding wants butt welding to meet to carry out the low tempering of 200 ℃~250 ℃ of 40 minutes to 2 hours, and then with asbestos cloth parcel insulation 4 to 6 hours.Before rudder horn tread flaking, the relevant datum lines such as the cross centre line of helmport, horizon be marked and stamp foreign dotting punch.De-5 tires of rudder horn instead after one's death, carry out welding and batch benefit grinder of another outside face and do.To heaving or distortion etc. of part, adopt the way of firer's calibration and the calibration of colding pressing to solve.Some annexes that are connected with segmentation bottom outer K andante (shoe), member are installed in this stage owing to being not easy to, can first spot welding, and after waiting for that rudder horn 5 is installed in segmentation 6, then position and assemble and weld.

Segmentation upside-down mounting rudder horn:

As shown in Figure 2 and Figure 3, rudder horn 5, before segmentation 6 assemblings, first will, by the datum lines such as line of centers of the hull line of centers of segmentation 6, horizon, rudder horn 5, mark and stamp foreign dotting punch.The annexes such as the insert plate being connected with rudder horn in segmentation 6 structures, brace panel, after waiting for that rudder horn 5 locates, assembles, then assemble and weld.Adopt setting-out that model and the data that rudder horn and base plate opening are installed are accurately provided, open the opening of rudder horn base plate to rudder horn 5 is installed.Rudder horn 5, in the assembling and positioning of segmentation 6, adopt and draw the method for steel wire to guarantee that the helmport line of centers of rudder horn 5 and vertical, the helmport line of centers of segmentation 6 hull line of centerss align with positioning rib bit line.During orientation assemble, want the height of the rudder horn installation requirement of root Ju drawing, requirement from the platform theoretical water horizontal line of segmentation 6 to rudder horn rudder stock neck bearing steel casting the distance value (as the Δ L in Fig. 3) of actinal surface position installation, and the position error of orientation distance must not be greater than 2mm, the error of perpendicularity of rudder horn helmport line of centers and segment level line face must not be greater than 1.5mm, also will measure the numerical value of rudder horn helmport A, B position, the coaxiality error of A, B observed reading must not be greater than 1.5mm.After assembling, first weld the framing member of segmentation, the connection of sheet material, during welding will adopt minute to end to end and left and right carry out and want even numbers welder, symmetrical welding.The fillet welding in the vertical position of first welding structure docking, then flush fillet weld and the fillet welding in the overhead position of welding structure and landing slab and outside plate, base plate, the butt seam of outside plate and base plate finally just welds.After the framing member of segmentation and sheet material welding complete, squareness and the levelness deviation of repetition measurement rudder horn line of centers, and its deviate must not be greater than 3mm.The welding of rudder horn body and segmental structure, also will adopt even numbers welder symmetrical welding, first welds vertical position welding, and the fillet welding in the overhead position of rear weldering landing slab, base plate is then carried out flush fillet weld after the outer back chipping of base plate.While being welded to the steel casting of rudder horn body, the welding of steel casting and steel plate, needing preheating, preheating temperature is 100 ℃~120 ℃, and will adopt low hydrogen electrode welding.Postwelding wants butt welding to meet to be no less than the low tempering of 200 ℃~250 ℃ of 40 minutes, and then with the insulation of asbestos cloth parcel more than 4 hours.After segmentation prepackage, welding rudder horn 5 complete, measure rudder horn line of centers squareness, position level line face to the distance of actinal surface under rudder horn neck bearing steel casting, and submit to and apply for checking and examination.

Berth combination in rudder horn segmentation:

As shown in Figure 4, when rudder horn segmentation is closed up in upper building berth general assembly, longitudinally put back in advance deflection, its reversible deformation value of putting be in advance 1200mm place 0.5mm (the value conduct-Δ h calculating, as shown in Figure 4).In rudder horn segmentation, building berth closes up greatly when location, guarantee the theoretical with the place, corresponding rib position to main frame gear case positioning rib position of rudder horn line of centers, and will place 3mm welding contracted quantity closing up mouth.When location closed up greatly in segmentation, based on rudder horn 5, as benchmark, also will pull out rudder horn 5 line of centerss with steel wire, rudder horn 5 line of centerss should be vertical with horizon and its perpendicularity deviation must not be greater than 2mm.Rudder horn 5 line of centerss should be that theoretical centerline intersects and must not be greater than ± 3mm of its deviate with axle.It is origin reference location that short transverse be take the corresponding rib position baseline of rudder horn line of centers to the end opening horizon of rudder horn rudder stock neck bearing steel casting, only allow-2mm~0mm of position error.When mouthful weld seam is closed up greatly in welding, the fillet welding in the vertical position of first welded structure docking, the butt seam of rear weldering outside plate, landing slab, adopt even numbers welder welding, from bottom to up symmetrical welding, also can be divided into several weld seam sections and carry out symmetrical welding.After in rudder horn segmentation, berth combination has been welded, the line of centers squareness of measurement rudder horn, rudder horn neck bearing steel casting end opening horizon are to the distance of baseline, the distance at place, rudder horn line of centers respective ribs position to main frame gear case positioning rib position, require centerline deviation must not be greater than 3mm, height tolerance is-5mm~+ 1mm that front and back position deviation is ± 3mm.

Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (11)

1. an installation method for segmentation upside-down mounting rudder horn, is characterized in that comprising the steps:
One, horizontal assembling rudder horn: by the independent horizontal field weld of each assembly of rudder horn;
Two, segmentation upside-down mounting rudder horn: segmentation is inverted, assembles rudder horn in segmentation;
Three, berth combination in rudder horn segmentation: second step has been assembled to berth combination in the segmentation of rudder horn;
Step 2, segmentation upside-down mounting rudder horn comprise the following steps:
G) first the datum lines such as line of centers of the hull line of centers of segmentation (6), horizon, rudder horn (5) are marked, and stamp foreign dotting punch;
H) adopt mold loft template and data cutting rudder horn and base plate opening;
I) location rudder horn (5), makes the helmport line of centers of rudder horn (5) vertical with subsection hull line of centers, helmport line of centers aligns with positioning rib bit line;
J) setting height(from bottom) of rudder horn (5) on root Ju drawing, from the platform theoretical water horizontal line of segmentation to rudder horn rudder stock neck bearing steel casting the distance value of actinal surface position installation;
K) after orientation assemble, first weld framing member, the sheet material of segmentation, welding adopt therefrom to end to end and left and right carry out and want even numbers welder symmetrical welding, the fillet welding in the vertical position of first welding structure docking, the flush fillet weld of welding structure and landing slab and outside plate, base plate and fillet welding in the overhead position again, the butt seam of outside plate and base plate is just weldering finally;
After the framing member of l) segmentation (6) and sheet material welding complete, squareness and the levelness deviation of repetition measurement rudder horn (5) line of centers, and its deviate must not be greater than 3mm;
M) welding of rudder horn (5) body and segmental structure, also will adopt even numbers welder symmetrical welding, first welds vertical position welding, and the fillet welding in the overhead position of rear weldering landing slab, base plate is then carried out flush fillet weld after the outer back chipping of base plate;
N), after segmentation prepackage, welding rudder horn (5) complete, measure rudder horn (5) line of centers squareness, position level line face to the distance of actinal surface under rudder horn (5) neck bearing steel casting, and submit to and apply for checking and examination.
2. the installation method of a kind of segmentation upside-down mounting rudder horn according to claim 1, is characterized in that: step 1, horizontal assembling rudder horn comprise the following steps:
A) lay the independent moulding bed that can place rudder horn (5);
B) check whether steel casting meets the requirements;
C) location and installation rudder stock neck bearing steel casting, rudder pin bearing steel casting;
D) each steel casting and steel plate are welded;
E) before rudder horn (5) tread flaking, the relevant datum lines such as the cross centre line of helmport, horizon are marked and stamp foreign dotting punch;
F), after rudder horn (5) tread flaking is stood up, carry out welding and batch benefit grinder of another outside face and do.
3. the installation method of a kind of segmentation upside-down mounting rudder horn according to claim 1, is characterized in that: in step 3, rudder horn segmentation, berth combination comprises the following steps:
O) rudder horn segmentation, when upper building berth general assembly is closed up, longitudinally puts back deflection in advance; With the theoretical longitudinal register at corresponding rib position to the main frame gear case positioning rib position place of rudder horn (5) line of centers, and place 3mm welding contracted quantity closing up mouth;
P) with steel wire, pull out rudder horn (5) line of centers;
Q) to take rudder horn (5) line of centers respective ribs position baseline to the end opening horizon of rudder horn (5) rudder stock neck bearing steel casting be origin reference location to short transverse;
While r) closing up greatly mouthful weld seam, the fillet welding in the vertical position of first welded structure docking, the butt seam of rear weldering outside plate, landing slab, requires to adopt even numbers welder symmetrical welding or be divided into several weld seam sections and carry out symmetrical welding from bottom to up.
4. the installation method of a kind of segmentation upside-down mounting rudder horn according to claim 2, it is characterized in that: a) part in step 1, horizontal assembling rudder horn, between described independent moulding bed template, install that longitudinal band iron tie rod (1) is strengthened, four jiaos of moulding beds make diagonal brace connection reinforcement with angle steel (2).
5. the installation method of a kind of segmentation upside-down mounting rudder horn according to claim 2, it is characterized in that: b in step 1, horizontal assembling rudder horn) part, the specific requirement that checks steel casting is, steel casting surface should be smooth clean, pore-free, crack and scab defects, the faying surface contacting with outside plate part should guarantee the faying surface degree of depth and polish flat.
6. the installation method of a kind of segmentation upside-down mounting rudder horn according to claim 2, it is characterized in that: c in step 1, horizontal assembling rudder horn) part, the localization method of described location and installation rudder stock neck bearing steel casting, rudder pin bearing steel casting adopts and draws steel wire or beat laser.
7. according to the installation method of a kind of segmentation upside-down mounting rudder horn of any one described in claim 2-3, it is characterized in that:
C in step 1, horizontal assembling rudder horn) part, positioning requirements is, suitable for reading be no more than ± 2mm of distance error of the lower actinal surface of rudder stock neck bearing steel casting and be no more than ± 1mm of rudder pin bearing coaxiality error, rudder stock neck bearing steel casting and rudder pin bearing steel casting;
J in step 2, segmentation upside-down mounting rudder horn) part, the position error of described location and installation must not be greater than 2mm, the error of perpendicularity of rudder horn (5) helmport line of centers and segment level line face must not be greater than 1.5mm, and the right alignment of the upper and lower helmport of rudder horn (5) must not be greater than 1.5mm;
P in berth combination in step 3, rudder horn segmentation) part, requires described line of centers to be, its and horizontal perpendicularity deviation must not be greater than 2mm, and it should be crossing and must not the be greater than ± 3mm of deviate of theoretical centerline with axle;
Q in berth combination in step 3, rudder horn segmentation) part, described only allow-2mm~0mm of origin reference location error;
After in rudder horn segmentation, berth combination has been welded, the line of centers squareness of measurement rudder horn, rudder horn neck bearing steel casting end opening horizon are to the distance of baseline, the distance at place, rudder horn line of centers respective ribs position to main frame gear case positioning rib position, require centerline deviation must not be greater than 3mm, height tolerance is-5mm~+ 1mm that front and back position deviation is ± 3mm.
8. the installation method of a kind of segmentation upside-down mounting rudder horn according to claim 1, is characterized in that: while relating to the welding of steel part and steel plate, need preheating; Postwelding wants butt welded seam to carry out low tempering, and then wraps up with asbestos cloth; Described preheating temperature is 100 ℃~120 ℃; Described welding process is selected low hydrogen electrode welding; Described low tempering temperatures is 200 ℃~250 ℃; The described low tempering time is 40 minutes to 2 hours; Described parcel temperature retention time is 4 hours to 6 hours.
9. the installation method of a kind of segmentation upside-down mounting rudder horn according to claim 2, is characterized in that: f in step 1, horizontal assembling rudder horn) part, described benefit grinder also comprises heaving or being out of shape, employing firer's calibration and the calibration of colding pressing part.
10. the installation method of a kind of segmentation upside-down mounting rudder horn according to claim 1, it is characterized in that: i in step 2, segmentation upside-down mounting rudder horn) part, location rudder horn (5), the method for make the helmport line of centers of rudder horn (5) vertical with subsection hull line of centers, helmport line of centers aliging with positioning rib bit line is for drawing steel wire.
The installation method of 11. a kind of segmentation upside-down mounting rudder horns according to claim 3, is characterized in that: o in berth combination in step 3, rudder horn segmentation) part, described longitudinally to put back in advance distortion value be that 1200mm places 0.5mm.
CN201110256179.3A 2011-09-01 2011-09-01 Mounting method for sectional inversely hung rudder arm CN102407921B (en)

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CN103350735B (en) * 2013-07-12 2016-08-10 舟山海之帆造船技术有限公司 Rudder horn and stern segmentation mounting process
CN103406679A (en) * 2013-08-20 2013-11-27 南通中新钢构重工有限公司 Welding technology of stereoscopic section composed of platform board and lateral plates
CN104608877B (en) * 2015-03-02 2017-03-01 启东丰顺船舶重工有限公司 A kind of LNG liquefied gas carrier rudder horn processing technology
CN104608878B (en) * 2015-03-02 2017-05-24 启东丰顺船舶重工有限公司 Mounting technology of rudder horn of transport ship for liquified natural gas (LNG)
CN104759861B (en) * 2015-04-01 2017-03-08 中船黄埔文冲船舶有限公司 Marine shafting laser alignment frock and centering installation method based on gear-box centering
CN107235118B (en) * 2017-06-08 2019-12-03 中船黄埔文冲船舶有限公司 A kind of supplementary structure and preparation method thereof built for boat segmental
CN107323608A (en) * 2017-06-28 2017-11-07 广船国际有限公司 A kind of propeller shaft bracket installation method

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