CN107323608A - A kind of propeller shaft bracket installation method - Google Patents

A kind of propeller shaft bracket installation method Download PDF

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Publication number
CN107323608A
CN107323608A CN201710505644.XA CN201710505644A CN107323608A CN 107323608 A CN107323608 A CN 107323608A CN 201710505644 A CN201710505644 A CN 201710505644A CN 107323608 A CN107323608 A CN 107323608A
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CN
China
Prior art keywords
propeller shaft
shaft bracket
segmentation
welding
axis hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710505644.XA
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Chinese (zh)
Inventor
熊飞
谭继良
姚杰
李伟
孙振财
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Guangzhou Shipyard International Co Ltd
Original Assignee
Guangzhou Shipyard International Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Shipyard International Co Ltd filed Critical Guangzhou Shipyard International Co Ltd
Priority to CN201710505644.XA priority Critical patent/CN107323608A/en
Priority to PCT/CN2017/108826 priority patent/WO2019000750A1/en
Publication of CN107323608A publication Critical patent/CN107323608A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B71/00Designing vessels; Predicting their performance

Abstract

The present invention discloses a kind of propeller shaft bracket installation method there is provided propeller shaft bracket, and the propeller shaft bracket is arranged in the segmentation in the sectional stage, and being then hung to dock with the segmentation together again carries out closing up assembling greatly.The installation method provided using the present invention can reduce the installation difficulty of propeller shaft bracket, increase the security of operation;Installation accuracy can be accurately controlled, shortens the dock cycle, production cost is saved.

Description

A kind of propeller shaft bracket installation method
Technical field
The present invention relates to technical field of ships, more particularly to a kind of propeller shaft bracket installation method.
Background technology
The Special type ship of the shafting containing propeller shaft bracket is generally the several big long axis systems for closing up segmentation of energy span, in the peace of propeller shaft bracket During dress, control the precision difficulty of shafting larger.
At present, the conventional installation method of propeller shaft bracket is after shafting segment carrying is molded by the dock stage, further according to axis Install and follow-up just bracing wire is adjusted.Because the size of single-piece propeller shaft bracket is larger, heavier-weight, for example:Single-piece propeller shaft bracket Size be 2.4 × 7 × 8m (length × width × height), weight reaches 60t, equivalent to the specification of medium-sized segmentation, and the stage is carried in dock Need to carry out propeller shaft bracket positioning welding equipment using the localization method of cucurbit service hoisting.Therefore, traditional propeller shaft bracket installation method It there is following shortcoming:1st, it is necessary to install in all portions of outside plate and temporarily on propeller shaft bracket multiple hang during assembling Code, in some locations hang yard welding equipment during need high altitude vehicle whole process cooperation, operation difficulty is larger, and in later stage stern Repeatedly built is needed in the lifting of pedestal and frame is torn open, substantial amounts of man power and material is expended, is unfavorable for saving production cost.2nd, in peace Need propeller shaft bracket lifting 10.8m during dress, belong to work high above the ground, the risk factor of operation is higher, safety coefficient is poor, and stern Pedestal heavier mass, it is big that dress hangs difficulty.3rd, dock is the valuable source of shipyard, needs to spend longer using traditional welding and assembling method Time assembled and adjusted in dock, extend the dock cycle.
The content of the invention
It is an object of the present invention to:A kind of propeller shaft bracket installation method is provided, the installation difficulty of propeller shaft bracket can be reduced, Increase the security of operation.
It is another object of the present invention to:A kind of propeller shaft bracket installation method is provided, installation accuracy can be accurately controlled, Shorten the dock cycle, save production cost.
To reach this purpose, the present invention uses following technical scheme:
A kind of propeller shaft bracket installation method is provided there is provided propeller shaft bracket, the propeller shaft bracket is arranged on institute in the sectional stage State in segmentation, being then hung to dock with the segmentation together again carries out closing up assembling greatly.
As a kind of preferred technical scheme of described propeller shaft bracket installation method, comprise the following steps:
Comprise the following steps:
Step S10, the sectional making;
Step S20, propeller shaft bracket positioning:On ground, sample establishes mark post, and height detection line is drawn on the mark post, described Height detection line includes moulding bed horizontal base line and axis hole centre-height line, the propeller shaft bracket is hung at the segmentation, and make it Axis hole is located between the corresponding mark post, is drawn according to the axis hole centre-height line and sets steel wire, one end of the steel wire and institute The mark post connection of the side of the axis hole of propeller shaft bracket is stated, the other end is through the axis hole of the propeller shaft bracket and positioned at its opposite side The mark post connection, adjusts the steel wire in the position of the mark post, in making the axis hole of the steel wire and the propeller shaft bracket theoretical Heart line is overlapped, and then adjusts the position of the propeller shaft bracket, makes the axis hole center line of the propeller shaft bracket inclined along horizontally and vertically direction The steel wire setpoint distance is moved, recycles plumb bob to adjust front and back position of the propeller shaft bracket on the length direction of the segmentation;
Step S30, propeller shaft bracket welding:The propeller shaft bracket is welded with the segmentation, and entered during welding Row monitoring, is then readjusted if any deviation, to ensure the accuracy being welded.
As a kind of preferred technical scheme of described propeller shaft bracket installation method, the step S10 is specifically included:
Step S11, profile ground line-transect, segmentation center line, the rib inspection that the segmentation is drawn on described ground sample according to drawing Line and the mark post position line;
Step S12, described ground sample make moulding bed, the segmentation is made on the moulding bed;
Step S13, the axis hole theoretical centerline for drawing on the outside plate of the segmentation propeller shaft bracket.
As a kind of preferred technical scheme of described propeller shaft bracket installation method, in the step S20 and the step Step S21 is also set up between S30:Reinforcement positioning is carried out to the propeller shaft bracket using keeper.
As a kind of preferred technical scheme of described propeller shaft bracket installation method, in the step S20:Adjust the axle After centerline hole, the axis hole center line is set vertically to offset up the steel wire 0-2mm, then in the horizontal direction to remote Topside direction offsets 0-5mm, recycles front and back position of the plumb bob adjustment propeller shaft bracket on the length direction of segmentation.
It is used as a kind of preferred technical scheme of described propeller shaft bracket installation method, in the step S30, the stern tube shaft Frame is preheated to both welding positions before being welded with the segmentation and is incubated after welding, wherein, the temperature of preheating Spend for 120 DEG C~150 DEG C.
It is after preheat, same to the propeller shaft bracket as a kind of preferred technical scheme of described propeller shaft bracket installation method The symmetrical welding of Shi Jinhang.
As a kind of preferred technical scheme of described propeller shaft bracket installation method, the welding sequence of the propeller shaft bracket is: First the joint between interior support arm and the floor docked of outer support arm respectively in the segmentation is welded, then by the stern tube shaft Corner connection position welding between the interior support arm and outer support arm and the floor of the segmentation of frame, then by the interior support arm of the propeller shaft bracket Welded with the corner connection position of outer support arm and the outside plate of the segmentation, finally by the butt seam welding between outside plate in bulk and other outside plates Connect.
As a kind of preferred technical scheme of described propeller shaft bracket installation method, carried out in the propeller shaft bracket welding process Precision is monitored, and it is≤± 1mm to make the deviation of the axis hole theoretical centerline of the axis hole center line and the propeller shaft bracket before welding, Deviation after welding is≤± 2mm, and the deviation of the front/rear end center of the axis hole and the position of theoretical center before welding is ≤ ± 2mm, the position deviation after welding is≤± 3mm.
As a kind of preferred technical scheme of described propeller shaft bracket installation method, setting steps after the step S30 S40:The segmentation is left and makes corresponding mark in the segmentation and the propeller shaft bracket respectively before the moulding bed, for follow-up Carrying is used, and corresponding mark includes:By the segmentation center line on described ground sample be respectively led into the bow stern position of the segmentation with And on the front/rear end of the axis hole of the propeller shaft bracket, rib inspection line is led on the front/rear end of axis hole and will be close to mark post Rib bit line lead on the outer surface of propeller shaft bracket, the axis hole center line is led on the propeller boss front/rear end of the propeller shaft bracket.
Beneficial effects of the present invention are:The installation for completing propeller shaft bracket in the sectional stage can reduce the installation of propeller shaft bracket Difficulty;Method installation is made using counter in installation process, the height of construction is reduced, it is to avoid work high above the ground, adds the peace of construction Quan Xing, in the installation process of propeller shaft bracket, workmen can construct directly in segmentation, without carrying operation platform in addition.Its In, sectional making, propeller shaft bracket positioning, the installation steps of propeller shaft bracket welding are respectively adopted, the installation of propeller shaft bracket can accurately be entered Row control, improves the installation accuracy of propeller shaft bracket.
Brief description of the drawings
The present invention is described in further detail below according to drawings and examples.
Fig. 1 is the schematic cross-sectional view that propeller shaft bracket described in embodiment is arranged in the segmentation.
Fig. 2 is longitudinal schematic cross-sectional view of the propeller shaft bracket described in embodiment in installation process (steel wire is not shown in figure).
Fig. 3 is horizontal schematic cross-sectional view of the propeller shaft bracket described in embodiment in installation process.
Fig. 4 be described in embodiment line-transect draw sketch.
In figure:
1st, it is segmented;11st, floor;12nd, outside plate;2nd, propeller shaft bracket;21st, interior support arm;22nd, outer support arm;23rd, axis hole;24th, in axis hole Heart line;3rd, moulding bed horizontal base line;4th, mark post;41st, the mark post position line;5th, profile ground line-transect;6th, it is segmented center line;7th, rib inspection line; 8th, keeper;9th, ground.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
As shown in figures 1-4, in the present embodiment, a kind of propeller shaft bracket installation method of the present invention there is provided propeller shaft bracket 2, The propeller shaft bracket 2 is arranged in the segmentation 1 in the sectional stage, being then hung to dock with the segmentation 1 together again enters Row closes up assembling greatly.
The installation for completing propeller shaft bracket 2 in the sectional stage can reduce the installation difficulty of propeller shaft bracket 2, in installation process Installed using anti-method of making, i.e., the side that 1 upside-down mounting makes outside plate 12 be located remotely from ground 9, deck position will be segmented during installation In the side close to ground 9, the height of construction is reduced, the security of construction is added, in the installation process of propeller shaft bracket 2, Workmen directly can construct in segmentation 1, without carrying operation platform in addition.Installed using anti-method of making, in installation process The installation accuracy of convenient adjustment propeller shaft bracket 2, reduces the workload that light is hoped in bracing wire.In propeller shaft bracket 2 after segmentation 1 completes to install, Dock is hung to segmentation 1 to carry out closing up assembling greatly, can complete to turn the blackout work with propeller shaft bracket 2 in workshop, utilize this together Method can reduce the time for taking dock, shorten the cycle of dock, improve the utilization rate of dock, can rationally utilize life Produce resource.
Wherein, the described installation method of propeller shaft bracket 2 comprises the following steps:
Step S10, the segmentation 1 make;
Step S20, the propeller shaft bracket 2 are positioned:On ground, sample establishes mark post 4, and height detection line is drawn on the mark post 4, The height detection line includes moulding bed horizontal base line 3 and axis hole centre-height line, and the propeller shaft bracket 2 is hung at the segmentation 1, And its axis hole 23 is located between the corresponding mark post 4, drawn according to the axis hole centre-height line and set steel wire, the steel wire One end is connected with the mark post 4 of the side of the axis hole 23 of the propeller shaft bracket 2, and the other end passes through the axis hole 23 of the propeller shaft bracket 2 It is connected with the mark post 4 positioned at its opposite side, adjusts position of the steel wire on the mark post 4, make the steel wire and institute State the coincidence of axis hole theoretical centerline, then adjust the position of propeller shaft bracket 2, make the axis hole center line of the propeller shaft bracket 2 along level and Vertical direction offsets the steel wire setpoint distance, recycles anteroposterior position of the plumb bob adjustment propeller shaft bracket 2 on the length direction of segmentation 1 Put;
Step S30, the propeller shaft bracket 2 are welded:Propeller shaft bracket 2 is welded with segmentation 1, and supervised during welding Control, is then readjusted if any deviation, to ensure the accuracy being welded.
The making precision of propeller shaft bracket 2 is checked before construction and allowance is confirmed, checks propeller shaft bracket 2 before and after axis hole 23 The mark of end face center, in order to follow-up line and welding.It is can determine by height detection line as the installation of propeller shaft bracket 2 Highly, draw set steel wire can asessory shaft centerline hole 24 overlapped with axis hole theoretical centerline.On the axis hole theoretical centerline edge Horizontally and vertically direction offsets the steel wire setpoint distance, has fully taken into account the welding when propeller shaft bracket 2 is welded with segmentation 1 and has received Contracting amount, is welding deformation headspace, it is ensured that the accuracy of the actual installation of propeller shaft bracket 2 both horizontally and vertically, Then front and back position of the propeller shaft bracket 2 on the length direction of segmentation 1 is adjusted using plumb bob, realized in the length side of segmentation 1 Accuracy control.In step s 30 to welding during be monitored, can to welding deviation timely adjust, subtract Few follow-up adjustment work, it is ensured that be welded accuracy, improves the efficiency being welded.
In the present embodiment, bidding bar 4 is drawn using a diameter of 0.6mm steel wire, in order to carry out effective positioning to steel wire Weight 30kg is hung at the two ends of steel wire, to reduce the error of steel wire positioning.
In implementation process, by the setting plumb bob at the port position of axis hole 23, it is necessary to consider allowance to ensure The accuracy of the positioning of propeller shaft bracket 2.In order to the positioning that further improves propeller shaft bracket 2 accuracy, it is necessary to duplicate measurements axis hole 23 Port position to the distance of mark post 4 and the height of the theoretical center line skew steel wire of axis hole 23.
Specifically, the step S10 is specifically included:Step S11, on described ground sample according to drawing draw it is described segmentation 1 Profile ground line-transect 8,1 center line of segmentation, the rib inspection line 7 and mark post position line 41;
Step S12, described ground sample make moulding bed, made on moulding bed it is described segmentation 1;
Step S13, on the outside plate 12 of the segmentation 1 draw the axis hole theoretical centerline of the propeller shaft bracket 2.
Mark post 4 is established on the mark post position line 41 drawn in ground sample, and fixed mark post 4 using fixture, Ensure mark post 4 and horizontal plane, and ensure that relative displacement does not occur for mark post 4 in whole work progress, keeps well steady It is qualitative, it is to avoid the installation accuracy of the influence propeller shaft bracket 2.In the present embodiment, the fixture is channel-section steel.
In welding process, in order to prevent propeller shaft bracket 2 to be subjected to displacement in segmentation 1, in the step S20 and the step Step S21 is also set up between S30:Reinforcement positioning is carried out to the propeller shaft bracket 2 using keeper.By keeper to propeller shaft bracket 2 Positioned, prevent that propeller shaft bracket 2 is offset during welding, it is ensured that the installation accuracy of propeller shaft bracket 2, and conveniently by stern tube shaft Frame 2 is welded in segmentation 1.
The amount of contraction of segmentation 1 is welded in view of the interior support arm 21 and outer support arm 22 on propeller shaft bracket 2, in order to reach accurate control In the purpose of the installation accuracy of propeller shaft bracket 2 processed, the step S20, the axis hole center line 24 and the steel of the propeller shaft bracket 2 are adjusted After silk 24 is overlapped, the axis hole center line 24 is set vertically to offset up the steel wire 0-2mm, then in the horizontal direction to remote 0-5mm is offset from topside direction, front and back position of the plumb bob adjustment propeller shaft bracket 2 on the length direction of segmentation 1 is recycled.By this Design, can be controlled to the installation accuracy of propeller shaft bracket 2 so that after the completion of propeller shaft bracket 2 is welded with segmentation 1, propeller shaft bracket 2 Axis is overlapped with steel wire 24 in the range of error permission, to meet the requirement of installation accuracy.In the present embodiment, the axis hole Center line 24 vertically offsets up the steel wire 2mm, then in the horizontal direction to away from topside direction skew 5mm.Certainly In practice of construction, the burst size of specific reversible deformation is that the axis hole center line 24 vertically offsets up the steel wire Distance and the axis hole center line 24 are in the horizontal direction to interior branch of the distance offset away from topside direction all in accordance with propeller shaft bracket 2 Arm 21, the size of outer support arm 22 and set, and according to shipyard experience carry out.
In the step S30, the propeller shaft bracket 2 before the welding of segmentation 1 to both welding positions with preheating And it is incubated after welding, wherein, the temperature of preheating is 120 DEG C~150 DEG C, and the time of preheating is according to specific construction feelings Depending on condition.Carry out the cooling degree that pre- heat energy slows down postwelding, it is to avoid the spilling of diffusible hydrogen in metal, improve the crack resistance of weld, Welding stress is reduced, the quality of welding is effectively refer to.It is incubated after welding, can cross makes weld shrink uniformly, prevents Only weld ftractures.
In order to control propeller shaft bracket 2 to be arranged on the deformation of 1 left and right sides of segmentation, after preheat, the propeller shaft bracket 2 is entered simultaneously The symmetrical welding of row.By the symmetrical welding simultaneously of two propeller shaft bracket 2, the deformation quantity of the split left and right sides can be controlled simultaneously, The left and right sides of split is consistent, it is to avoid because the order difference of the left and right sides successively welding causes propeller shaft bracket 2 Difference is there is between the left and right sides of segmentation 1 and the balance of segmentation 1 is influenceed, and improves the performance of propeller shaft bracket 2.
It is preferred that, the interior support arm 21 and the outer support arm 22 and the Type of Welding of the segmentation 1 weld for full impregnated.Using complete The welding manner welded thoroughly is avoided produces weld seam in weld, meets the requirement of the propeller shaft bracket 2 in use to intensity, Extend its service life.
Wherein, the welding sequence of the propeller shaft bracket 2 is:First by it is described segmentation 1 on respectively with interior support arm 21 and outer support arm Joint welding between the floor 11 of 22 docking, then by the interior support arm 21 and outer support arm 22 of the propeller shaft bracket 2 and described point Corner connection position welding between the floor 11 of section 1, then by the interior support arm 21 and outer support arm 22 of the propeller shaft bracket 2 and the segmentation The corner connection position welding of 1 outside plate 12, finally welds the abutment joint between outside plate in bulk and other outside plates.Making segmentation During, propeller shaft bracket 2 is installed for convenience, the welding position of propeller shaft bracket 2 is reserved in segmentation 1.Specifically, stern on 1 will be segmented The floor 11 that the docking location of pedestal 2 is not installed first, again by floor not with the welding of segmentation 1 during propeller shaft bracket 2 is welded In 11 welded bands segmentation 1, it can be ensured that on the premise of being welded between the floor 1 docked with interior support arm 21 and outer support arm 22 well, Interior support arm 21 and outer support arm 22 are welded with floor 11 again.Installing port is reserved in the position docked in segmentation 1 with propeller shaft bracket 1, is Welding procedure headspace, can reduce welding difficulty, while convenient welding propeller shaft bracket 2.Butt welding can be also reduced as best one can simultaneously Connect the damage of the outside plate 12 outside region, and the adjustment during the welding being also convenient for outside plate 12.
In order to ensure the installation accuracy of the propeller shaft bracket 2, precision monitoring is carried out in the welding process of propeller shaft bracket 2, makes axle The deviation of centerline hole 24 and axis hole theoretical centerline before welding is≤± 1mm, and the deviation after welding is≤± 2mm, axis hole The deviation of 23 front/rear end center and the position of theoretical center before welding is≤± 2mm, the position deviation after welding for≤ ±3mm。
In order to coordinate after the installation of propeller shaft bracket 2, by the lifting of segmentation 1, into dock, progress building berth attaches together greatly what is matched somebody with somebody Setting steps S40 after assembly process, the step S30:Segmentation 1 is left and makes phase in segmentation 1 and propeller shaft bracket 2 respectively before moulding bed The mark answered, so that follow-up carrying is used, corresponding mark includes:The center line of segmentation 1 on described ground sample draws respectively to segmentation 1 Bow stern position and the propeller shaft bracket 2 axis hole 23 front/rear end on, by rib inspection line lead on the front/rear end of axis hole 23 And will be close to the rib bit line of mark post 4 and lead on the outer surface of propeller shaft bracket 2, the axis hole center line 24 is led into the propeller shaft bracket Axis hole 23 front/rear end on.During assembling, by it is each segmentation 1 on mark it is corresponding close up, reduce and close up greatly The workload of assembling, improves the production efficiency of ship.
The economic benefit that a kind of propeller shaft bracket installation method of the present invention is brought:
1st, the segmentation stage is changed to by dock operation by the installation of propeller shaft bracket, work high above the ground turns ground, not only saves to take and tear open Frame expense, and dock scaffold building is saved, calculated by long 16m × 4m × 12m area of space built, labour cost can be saved With about 61440 yuan.
2nd, outside plate, propeller shaft bracket are reduced and hangs code about 36 temporarily, that is, reduced corresponding high altitude vehicle and coordinate, hang code assembling weldering Connect, detect a flaw, removing, polishing, repairing, propeller shaft bracket flaw detection flow chart process, the labour cost of saving be about (40+60) × 36 × (1.5+2+0.5+1+2+1.5+0.5)=32400 yuan.
3rd, using needing largely to start shipment personnel, cucurbit cooperation in traditional installation method propeller shaft bracket position fixing process, it is promoted to multiple Position elapsed time at least 3 days, it is about 10 × 300 × 3=9000 that can save labour cost using described propeller shaft bracket installation method Member.
4th, installed according to propeller shaft bracket in the segmentation stage, 10 people spend 6 days and completed, according to man-hour segmentation and dock 1:6 meters Calculate, using described propeller shaft bracket installation method than traditional installation method first than save labour cost be about 10 × 300 × 6 × 6 =108000 yuan.
5th, shorten dock and build at least 10 days (Underwater Engineering) cycle.
In description herein, it is to be understood that term " first ", " second " are only used for being distinguish between in description, Without particular meaning.
It is to be understood that, above-mentioned embodiment is only that presently preferred embodiments of the present invention and institute's application technology are former Reason, in technical scope disclosed in this invention, change that any one skilled in the art is readily apparent that or Replace, should all cover within the scope of the present invention.

Claims (10)

1. a kind of propeller shaft bracket installation method, it is characterised in that propeller shaft bracket is provided, the propeller shaft bracket is installed in the sectional stage In the segmentation, then it is hung to dock with the segmentation together again and carries out closing up assembling greatly.
2. propeller shaft bracket installation method according to claim 1, it is characterised in that comprise the following steps:
Step S10, the sectional making;
Step S20, propeller shaft bracket positioning:On ground, sample establishes mark post, and height detection line, the height are drawn on the mark post Examine line to include moulding bed horizontal base line and axis hole centre-height line, the propeller shaft bracket is hung at the segmentation, and make its axis hole Between the corresponding mark post, drawn according to the axis hole centre-height line and set steel wire, one end of the steel wire and the stern The mark post connection of the side of the axis hole of pedestal, the other end passes through the axis hole of the propeller shaft bracket with being located at the described of its opposite side Mark post is connected, and is adjusted the steel wire in the position of the mark post, is made the axis hole theoretical centerline of the steel wire and the propeller shaft bracket Overlap, then adjust the position of the propeller shaft bracket, the axis hole center line of the propeller shaft bracket is offset institute along horizontally and vertically direction Steel wire setpoint distance is stated, recycles plumb bob to adjust front and back position of the propeller shaft bracket on the length direction of the segmentation;
Step S30, propeller shaft bracket welding:The propeller shaft bracket is welded with the segmentation, and supervised during welding Control, is then readjusted if any deviation, to ensure the accuracy being welded.
3. propeller shaft bracket installation method according to claim 2, it is characterised in that the step S10 is specifically included:
Step S11, drawn according to drawing on described ground sample the segmentation profile line-transect, segmentation center line, rib inspection line with And the mark post position line;
Step S12, described ground sample make moulding bed, the segmentation is made on the moulding bed;
Step S13, the axis hole theoretical centerline for drawing on the outside plate of the segmentation propeller shaft bracket.
4. propeller shaft bracket installation method according to claim 2, it is characterised in that in the step S20 and the step S30 Between also set up step S21:Reinforcement positioning is carried out to the propeller shaft bracket using keeper.
5. propeller shaft bracket installation method according to claim 2, it is characterised in that in the step S20:Adjust the axle After centerline hole, the axis hole center line is set vertically to offset up the steel wire 0-2mm, then in the horizontal direction to remote Topside direction offsets 0-5mm, recycles front and back position of the plumb bob adjustment propeller shaft bracket on the length direction of segmentation.
6. propeller shaft bracket installation method according to claim 2, it is characterised in that in the step S30, the propeller shaft bracket With being preheated and being incubated after welding to both welding positions before the segmentation welding, wherein, the temperature of preheating For 120 DEG C~150 DEG C.
7. propeller shaft bracket installation method according to claim 6, it is characterised in that after preheat, to the propeller shaft bracket simultaneously Carry out symmetrical welding.
8. propeller shaft bracket installation method according to claim 7, it is characterised in that the welding sequence of the propeller shaft bracket is:First By the joint welding respectively between interior support arm and the floor docked of outer support arm in the segmentation, then by the propeller shaft bracket Interior support arm and outer support arm and the floor of the segmentation between the welding of corner connection position, then by the interior support arm of the propeller shaft bracket and The corner connection position of outer support arm and the outside plate of the segmentation is welded, finally by the butt seam welding between outside plate in bulk and other outside plates Connect.
9. propeller shaft bracket installation method according to claim 8, it is characterised in that carry out essence in the propeller shaft bracket welding process Degree monitoring, it is≤± 1mm, weldering to make the deviation of the axis hole theoretical centerline of the axis hole center line and the propeller shaft bracket before welding Deviation after connecing is≤± 2mm, the deviation of the front/rear end center of the axis hole and the position of theoretical center before welding for≤ ± 2mm, the position deviation after welding is≤± 3mm.
10. propeller shaft bracket installation method according to claim 3, it is characterised in that setting steps S40 after the step S30: The segmentation is left and makes corresponding mark in the segmentation and the propeller shaft bracket respectively before the moulding bed, for follow-up carrying Use, corresponding mark includes:Segmentation center line on described ground sample is respectively led into bow stern position and the institute of the segmentation On the front/rear end for the axis hole for stating propeller shaft bracket, the rib is examined into the rib that line led on the front/rear end of axis hole and will be close to mark post Bit line is led on the outer surface of propeller shaft bracket, and the axis hole center line is led on the propeller boss front/rear end of the propeller shaft bracket.
CN201710505644.XA 2017-06-28 2017-06-28 A kind of propeller shaft bracket installation method Pending CN107323608A (en)

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PCT/CN2017/108826 WO2019000750A1 (en) 2017-06-28 2017-10-31 Method for installing propeller shaft bracket

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CN109238106A (en) * 2018-09-20 2019-01-18 中船黄埔文冲船舶有限公司 A kind of propeller strut method of inspection and structure
CN109263804A (en) * 2018-09-30 2019-01-25 广船国际有限公司 A kind of ship underwater observation structure
CN110510059A (en) * 2019-07-15 2019-11-29 沪东中华造船(集团)有限公司 A kind of method of tail fin end support installation
WO2021184929A1 (en) * 2020-03-20 2021-09-23 浙江国际海运职业技术学院 Line drawing method for stern propeller base before welding
CN113525622A (en) * 2021-08-12 2021-10-22 招商局金陵船舶(江苏)有限公司 Method for mounting single-arm and double-arm shaft support of roll-on-roll-off ship

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Application publication date: 20171107