CN111572730B - Method for erecting platform between rudder horn and method for measuring deviation of upper rudder hole and lower rudder hole of rudder horn - Google Patents
Method for erecting platform between rudder horn and method for measuring deviation of upper rudder hole and lower rudder hole of rudder horn Download PDFInfo
- Publication number
- CN111572730B CN111572730B CN202010442894.5A CN202010442894A CN111572730B CN 111572730 B CN111572730 B CN 111572730B CN 202010442894 A CN202010442894 A CN 202010442894A CN 111572730 B CN111572730 B CN 111572730B
- Authority
- CN
- China
- Prior art keywords
- rudder
- scaffold
- platform
- hole
- horn
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C5/00—Equipment usable both on slipways and in dry docks
- B63C5/02—Stagings; Scaffolding; Shores or struts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C5/00—Equipment usable both on slipways and in dry docks
- B63C5/02—Stagings; Scaffolding; Shores or struts
- B63C2005/025—Stagings, or scaffolding, i.e. constructions providing temporary working platforms on slipways, in building or repair docks, or inside hulls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ladders (AREA)
Abstract
The invention belongs to the technical field of ships. A method for erecting a scaffold platform between rudder horn: (1) in the stage of constructing the rudder system in a segmented reverse state, welding a scaffold eye plate on a rudder horn; (2) the rudder system enters a coating room in sections to be painted; (3) after the rudder system is segmented out of the coating room, the rudder system is in a reverse state, and an inverted scaffold platform is pre-built between a lower rudder hole and an upper rudder hole of an inverted rudder-hanging arm by utilizing scaffold eye plates, brackets, vertical pipes and transverse pipes; (4) the rudder system is hoisted on a ship platform which is obliquely arranged in a segmented mode, a stern is located at the downstream of the ship platform, the rudder system is segmented into a normal state, a scaffold platform between rudder arms is normal, a scaffold eye plate is obliquely arranged upwards, a bracket is horizontally arranged, and erection of the scaffold platform between the rudder arms is completed. The invention also discloses a method for measuring the deviation of the upper rudder hole and the lower rudder hole of the rudder horn. The invention saves the time for setting up the scaffold and reduces the cost.
Description
Technical Field
The invention belongs to the technical field of ships, and particularly relates to a method for erecting a scaffold platform between rudder horn arms and a method for measuring deviation of upper and lower rudder holes of the rudder horn arms.
Background
The rudder system subsection is used as an important project carried by a shipway, the requirement on carrying and positioning precision of the rudder system is high, the temperature deviation of the left side and the right side is not more than 3 degrees due to the rudder system subsection carrying and positioning, the rudder system subsection is hoisted generally at night, the height of the rudder system subsection is about ten meters away from the ground, the rudder system subsection is hoisted generally in the early stage and then is fully matched with a scaffold in an auxiliary mode, the rudder system subsection is used for measuring the deviation value of a positioning rudder hole, a large gantry crane of the shipway is occupied for a long time, and the carrying and hoisting progress efficiency of the shipway is influenced.
Disclosure of Invention
The first purpose of the invention is to provide a method for erecting a scaffold platform between rudder horn arms, which saves the time for erecting the scaffold and reduces the cost.
The first purpose of the invention is realized by the following technical scheme, and the method for erecting the scaffold platform between the rudder horn is characterized by comprising the following steps:
(1) in the stage of constructing the rudder system in a segmented reverse state, a scaffold eye plate is welded on the rudder horn, the scaffold eye plate is positioned between a lower rudder hole and an upper rudder hole of the inverted rudder horn, and the scaffold eye plate is obliquely arranged towards the direction of the upper rudder hole of the rudder horn;
(2) the rudder system enters a coating room in sections to be painted;
(3) after the rudder system is segmented out of the coating room, the rudder system is in a reverse state, and an inverted scaffold platform is pre-built between a lower rudder hole and an upper rudder hole of an inverted rudder-hanging arm by utilizing scaffold eye plates, brackets, vertical pipes and transverse pipes; the bracket is obliquely arranged in the direction of the rudder hole on the rudder horn, and the bracket and the scaffold eye plate are positioned in the same plane; the vertical pipe is vertically arranged with the bracket, and the horizontal pipe is vertically arranged with the vertical pipe;
the vertical pipe is provided with a first platform and a second platform which are inverted, the first platform is used for measuring a rudder hole on the rudder-hanging arm, and the second platform is used for measuring a rudder hole under the rudder-hanging arm;
(4) the rudder system is hoisted on a ship platform which is obliquely arranged in a segmented mode, a stern is located at the downstream of the ship platform, the rudder system is segmented into a normal state, a scaffold platform between rudder arms is normal, a scaffold eye plate is obliquely arranged upwards, a bracket is horizontally arranged, and erection of the scaffold platform between the rudder arms is completed.
Preferably, the number of scaffold eye plates is 2, and including first scaffold eye plate, the second scaffold eye plate that the symmetry set up, first, two scaffold eye plates are located two lateral wall board terminal surface middles of rudder horn respectively.
Preferably, the scaffold platform pre-erected and inverted between the inverted rudder horn by using the scaffold eye plate specifically comprises: the first scaffold eye plate is connected with a first bracket through a bolt, and the second scaffold eye plate is connected with a second bracket through a bolt;
the end part of the first bracket is connected with a first vertical pipe through a fastener, the end part of the second bracket is connected with a second vertical pipe through a fastener, the first vertical pipe is vertically arranged with the corresponding first bracket, and the second vertical pipe is vertically arranged with the corresponding second bracket; the end parts of the first and second vertical rods far away from the lower rudder hole of the rudder-hanging arm are arranged in a suspended manner; the first vertical pipe and the second vertical pipe are connected with a plurality of transverse pipes, and an inverted vertical ladder is bound on the transverse pipes;
the first platform and the second platform are arranged on the first vertical pipe and the second vertical pipe through fasteners, and the first platform and the second platform are of a groined steel pipe combined structure.
Preferably, the inclination angle of the ship platform in the step (4) is 2-3 degrees; and (2) cutting the welded end of the scaffold eye plate in the step (1), wherein the cutting angle is 4.5-5.5 degrees, the outer diameter of the scaffold eye plate connecting bolt is 22mm, and the first bracket and the second bracket are horizontally arranged through the matching of the inclination angle of the slipway, the cutting angle of the eye plate and the size of the bolt.
Preferably, the scaffold eye plate is provided with two connecting holes, the aperture R is 12mm, the pitch is 90mm, and two corner fillets at the free end of the scaffold eye plate are arranged.
Preferably, the height of the welding angle of the scaffold eye plate is greater than 5mm, the welding is uniform, and the edge angle and the welding angle of the scaffold eye plate are polished smoothly.
The invention also provides a method for measuring the deviation of the upper rudder hole and the lower rudder hole of the rudder horn.
The second purpose of the invention is realized by the following technical scheme, and the method for measuring the deviation of the upper rudder hole and the lower rudder hole of the rudder horn is characterized by comprising the following steps:
(1) in the stage of constructing the rudder system in a segmented reverse state, the central axes of an upper rudder hole and a lower rudder hole of a central-hanging rudder arm are aligned;
(2) erecting a rudder horn-to-rudder horn scaffold platform by the method of any one of claims 1 to 3;
(3) carrying a slipway scaffold platform on the slipway;
(4) hoisting the rudder system to a slipway for prepositioning in sections, wherein the rudder system is divided into normal sections;
(5) connecting a scaffold platform of a slipway with a scaffold platform between rudder horn;
(6) an upper wire drawing frame is arranged on the steering engine, a lower wire drawing frame is arranged on the slipway, a steel wire rope is arranged between the upper wire drawing frame and the lower wire drawing frame, the steel wire rope sequentially passes through an upper rudder hole and a lower rudder hole of the rudder arm, the steel wire rope and the center line of the rudder system are arranged in a superposition mode or within an allowable error range, and the steel wire rope and the center line of the stern shaft are arranged vertically or within the allowable error range;
(7) a measurer enters a scaffold platform between rudder horn through a slipway scaffold platform; four measuring points are respectively determined on the upper rudder hole and the lower rudder hole and are uniformly distributed; a measurer observes distances between four measuring points of an upper rudder hole and a steel wire rope on a first measuring platform of a scaffold platform between rudder horn hanging arms; a measurer observes the distances between the four measuring points of the lower rudder hole and the steel wire rope on a second measuring platform of the hand frame platform between the rudder horn and the foot;
(8) and the positions of the rudder system sections are continuously adjusted, so that the distances from the four measuring points of the rudder hole on the rudder arm to the steel wire rope are equal or within an allowable error range, and the distances from the four measuring points of the rudder hole under the rudder arm to the steel wire rope are equal or within an allowable error range.
Preferably, building berth scaffold platform and the scaffold platform of hanging between the rudder arm are connected through the vertical ladder, and vertical ladder one end sets up on building berth scaffold platform, and the vertical ladder other end is connected with the scaffold platform of hanging between the rudder arm.
Preferably, there is the difference in height between dock scaffold platform and the scaffold platform of hanging between the rudder arm, and the straight ladder lower extreme sets up on dock scaffold platform, and the straight ladder upper end sets up the couple, and the couple hookup is on hanging the horizontal pole of scaffold platform between the rudder arm.
Preferably, the scaffold platforms between the slipway scaffold platform and the rudder horn are arranged in parallel, and the vertical ladder is arranged horizontally.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the method effectively shortens the erection time of scaffolds such as segmented carrying of the rudder wall and the like by about 2 hours, and meanwhile, after the rudder blade is hoisted, the scaffold can be erected by a scaffold to assist the construction of the rudder blade engineering, and meanwhile, the labor number of workers is reduced by 4. The efficiency of segmentation carry-on location is improved, and the cost that can be estimated by a single ship is saved by about 1000 yuan.
Secondly, in order to enable the bracket of the scaffold platform between the normal rudder arms hung on the slipway to be in a horizontal state, the inclination angle of the ship body is considered, the square eye plate is cut in the reverse construction stage of the rudder system, so that the eye plate is upwards arranged to form a certain angle when the rudder system is normal, in addition, a difference value is formed between the connecting bolt of the eye plate and the connecting hole, the normal connecting bolt sinks, the sinking angle is about two degrees, and the sinking angle plus the inclination angle of the slipway exactly offsets the angle of the eye plate, so that the horizontal state of the bracket is ensured, and the safety of the scaffold platform is ensured.
Thirdly, the berth scaffold is only needed to be carried on the berth, the rudder arm hanging scaffold is connected with the berth scaffold through the straight ladder, the berth scaffold does not need to be fully carried, the service time of large-scale gantry cranes occupying the berth is greatly reduced, and the platform carrying and hoisting progress efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a rudder system section (normal) of the present invention;
FIG. 2 is a schematic structural diagram of a segmented inversion construction phase of the rudder system of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view of C in FIG. 3;
fig. 5 is a schematic cut-away view of an eye plate of the present invention (the filled portion being the cut-away area);
FIG. 6 is a structural position relationship diagram of the eye plate and the rudder horn of the present invention;
FIG. 7 is a schematic view of the joints of the pre-scaffolding platform during the reverse construction phase of the rudder system in sections according to the present invention;
FIG. 8 is a diagram showing the relationship between the rudder horn and the boat deck according to the present invention;
fig. 9 is an exploded view of a pre-scaffolding platform of the present invention;
FIG. 10 is a diagram showing the positional relationship between the scaffolding platform for the berth and the scaffolding platform for the rudder horn of the present invention;
FIG. 11 is a sectional view taken in the direction B-B of FIG. 10;
FIG. 12 is a schematic diagram of a measurer performing deviation measurement of rudder holes on a rudder horn;
fig. 13 is a diagram showing the relationship between the measurement points of the upper and lower rudder holes and the wire ropes according to the present invention.
Detailed Description
The present invention will be further described with reference to the following drawings and examples, which are provided for illustration only and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 13, a method for setting up a scaffold platform between rudder horns includes the following steps:
(1) in the stage of rudder system subsection inversion construction, the rudder system is placed on a subsection block 5 on the ground in a subsection mode, a scaffold eye plate 4 is welded on a rudder horn 1 and is positioned between a lower rudder hole 3 and an upper rudder hole 2 of an inverted rudder horn, and the scaffold eye plate 4 is obliquely arranged towards the direction of the upper rudder hole of the rudder horn;
(2) the rudder system enters a coating room in sections to be painted;
(3) after the rudder system is segmented out of the coating room, the rudder system is in a reverse state, and an inverted scaffold platform 6 is pre-erected between a lower rudder hole 3 and an upper rudder hole 2 of an inverted rudder-hanging arm by utilizing a scaffold eye plate 4, a bracket 60, a vertical pipe 62 and a transverse pipe 68; the bracket 60 is obliquely arranged in the direction of the rudder hole on the rudder horn, and the bracket and the scaffold eye plate are positioned in the same plane; the vertical pipe 62 is vertically arranged with the bracket 60, and the horizontal pipe 68 is vertically arranged with the vertical pipe;
the stand pipe 62 is provided with a first inverted platform 66 and a second inverted platform 67, the first platform 66 is used for measuring a rudder hole on the rudder horn, and the second platform 67 is used for measuring a rudder hole on the rudder horn;
(4) the rudder system is hoisted on a ship platform which is obliquely arranged in a segmented mode, a stern is located at the downstream of the ship platform, the rudder system is segmented into a normal state, a scaffold platform between rudder arms is normal, a scaffold eye plate is obliquely arranged upwards, a bracket is horizontally arranged, and erection of the scaffold platform between the rudder arms is completed.
The quantity of scaffold eye board is 2, including first scaffold eye board 41, the second scaffold eye board 42 of symmetry setting, first, two scaffold eye boards are located respectively and hang two side wall board terminal surface middles of rudder arm.
Utilize scaffold eye plate, put up the scaffold platform of handstand in advance between the rudder horn of handstand, specifically do:
the first scaffold eye plate 41 is in bolted connection with the eye plate 61 at the end of the first bracket 60, and the second scaffold eye plate is in bolted connection with the eye plate at the end of the second bracket;
the end part of the first bracket 60 is connected with a first stand pipe 621 through a fastener 64, the end part of the second bracket is connected with a second stand pipe 622 through a fastener, the first stand pipe is vertically arranged with the corresponding first bracket, and the second stand pipe is vertically arranged with the corresponding second bracket; the end parts of the first and second vertical rods far away from the lower rudder hole of the rudder-hanging arm are arranged in a suspended manner; the first and second vertical pipes are connected with a plurality of transverse pipes 68, and the transverse pipes are bound with an inverted vertical ladder 63;
the first platform 67 and the second platform 67 are arranged on the first vertical pipe 621 and the second vertical pipe 622 through fasteners, and the first platform and the second platform are of a groined steel pipe combined structure.
In the step (4), the inclination angle of the ship platform 7 is 2-3 degrees; and (2) cutting the welded end of the scaffold eye plate in the step (1), wherein the cutting angle is 4.5-5.5 degrees, the outer diameter of the scaffold eye plate connecting bolt is 22mm, and the first bracket and the second bracket are horizontally arranged through the matching of the inclination angle of the slipway, the cutting angle of the eye plate and the size of the bolt.
Two connecting holes are processed on the scaffold eye plate 4, the aperture R is 12mm, the pitch is 90mm, and two corner fillets at the free end of the scaffold eye plate are arranged.
The height of the 4 welding corners of the scaffold eye plate is larger than 5mm, the welding is even, and the edges and corners of the scaffold eye plate are polished smoothly.
A method for measuring deviation of upper and lower rudder holes of a rudder horn comprises the following steps:
(1) in the stage of constructing the rudder system in a segmented reverse state, the central axes of an upper rudder hole and a lower rudder hole of a central-hanging rudder arm are aligned;
(2) erecting a rudder horn intermediate scaffold platform 6 by the method of any one of claims 1 to 3;
(3) carrying a slipway scaffold platform 8 on the slipway;
(4) hoisting the rudder system to a slipway 7 in a segmented manner for prepositioning, wherein the rudder system is segmented into normal;
(5) connecting a scaffold platform of a slipway with a scaffold platform between rudder horn;
(6) an upper wire pulling frame 9 is arranged on the steering engine and is welded and fixed with the subsections; a lower pull line frame 10 is arranged on the slipway, and the lower pull line frame 10 is fixed on the ground of the slipway; a steel wire rope 11 is fixed between an upper pull wire frame 9 and a lower pull wire frame 10, the steel wire rope 11 sequentially penetrates through an upper rudder hole 2 and a lower rudder hole 3 of the rudder horn, the steel wire rope 11 is overlapped with a rudder system central line 12 or is in an allowable error range, and the steel wire rope 11 is perpendicular to a stern shaft central line 13 or is in the allowable error range;
(7) a measurer enters a scaffold platform between rudder horn through a slipway scaffold platform; four measuring points 21 and 31 are respectively determined on the upper rudder hole 2 and the lower rudder hole 3, and are uniformly distributed; a measurer observes distances between the four measuring points 21 of the upper rudder hole and the steel wire rope 11 on a first measuring platform 66 of the scaffold platform between the rudder horn; a measurer observes the distances between the four measuring points 31 of the lower rudder hole and the steel wire rope 11 on a second measuring platform 67 of the scaffold platform between the rudder horn;
(8) and the positions of the rudder system sections are continuously adjusted, so that the distances from the four measuring points of the rudder hole on the rudder arm to the steel wire rope are equal or within an allowable error range, and the distances from the four measuring points of the rudder hole under the rudder arm to the steel wire rope are equal or within an allowable error range.
The scaffold platform between berth scaffold platform and the rudder horn of hanging is connected through the vertical ladder, and vertical ladder one end sets up on the berth scaffold platform, and the vertical ladder other end is connected with the scaffold platform between the rudder horn of hanging.
There is the difference in height between building berth scaffold platform and the scaffold platform of hanging between the rudder arm, and the setting of vertical ladder lower extreme is on building berth scaffold platform, and the vertical ladder upper end sets up the couple, and the couple hookup is on hanging the horizontal pole of scaffold platform between the rudder arm.
Parallel arrangement between scaffold platform between berth scaffold platform and the rudder horn, the vertical ladder level sets up.
The above description is only a preferred embodiment of the present invention, and it should be understood that the present invention is not limited to the above description, but the present invention can be modified within the scope of the present invention.
Claims (10)
1. A method for erecting a scaffold platform between rudder horn arms is characterized by comprising the following steps:
(1) in the stage of constructing the rudder system in a segmented reverse state, a scaffold eye plate is welded on the rudder horn, the scaffold eye plate is positioned between a lower rudder hole and an upper rudder hole of the inverted rudder horn, and the scaffold eye plate is obliquely arranged towards the direction of the upper rudder hole of the rudder horn;
(2) the rudder system enters a coating room in sections to be painted;
(3) after the rudder system is segmented out of the coating room, the rudder system is in a reverse state, and an inverted scaffold platform is pre-built between a lower rudder hole and an upper rudder hole of an inverted rudder-hanging arm by utilizing scaffold eye plates, brackets, vertical pipes and transverse pipes; the bracket is obliquely arranged towards the direction of a rudder hole on the rudder horn, and the bracket and the scaffold eye plate are positioned in the same plane; the vertical pipe is vertically arranged with the bracket, and the horizontal pipe is vertically arranged with the vertical pipe;
the vertical pipe is provided with a first platform and a second platform which are inverted, the first platform is used for measuring a rudder hole on the rudder-hanging arm, and the second platform is used for measuring a rudder hole under the rudder-hanging arm;
(4) the rudder system is hoisted on a ship platform which is obliquely arranged in a segmented mode, a stern is located at the downstream of the ship platform, the rudder system is segmented into a normal state, a scaffold platform between rudder arms is normal, a scaffold eye plate is obliquely arranged upwards, a bracket is horizontally arranged, and erection of the scaffold platform between the rudder arms is completed.
2. The method for erecting the scaffold platform between the rudder horn according to claim 1, wherein the number of the scaffold eye plates is 2, and the scaffold eye plates comprise a first scaffold eye plate and a second scaffold eye plate which are symmetrically arranged, and the first scaffold eye plate and the second scaffold eye plate are respectively positioned in the middle of the end faces of the two side wall plates of the rudder horn.
3. The method for erecting a scaffold platform between rudder arms according to claim 2, wherein the method for erecting an inverted scaffold platform between inverted rudder arms by using a scaffold eye plate comprises:
the first scaffold eye plate is connected with a first bracket through a bolt, and the second scaffold eye plate is connected with a second bracket through a bolt;
the end part of the first bracket is connected with a first vertical pipe through a fastener, the end part of the second bracket is connected with a second vertical pipe through a fastener, the first vertical pipe is vertically arranged with the corresponding first bracket, and the second vertical pipe is vertically arranged with the corresponding second bracket; the end parts of the first and second vertical rods far away from the lower rudder hole of the rudder-hanging arm are arranged in a suspended manner; the first vertical pipe and the second vertical pipe are connected with a plurality of transverse pipes, and an inverted vertical ladder is bound on the transverse pipes;
the first platform and the second platform are arranged on the first vertical pipe and the second vertical pipe through fasteners, and the first platform and the second platform are of a groined steel pipe combined structure.
4. The method for erecting a scaffold platform between rudder horn according to claim 3, wherein in the step (4), the inclination angle of the ship platform is 2-3 °; and (2) cutting the welded end of the scaffold eye plate in the step (1), wherein the cutting angle is 4.5-5.5 degrees, the outer diameter of the scaffold eye plate connecting bolt is 22mm, and the first bracket and the second bracket are horizontally arranged through the matching of the inclination angle of the slipway, the cutting angle of the eye plate and the size of the bolt.
5. The method for erecting a scaffold platform between rudder arms according to claim 2, wherein the scaffold eye plate is provided with two connecting holes, the hole diameter R is 12mm, the hole pitch is 90mm, and two fillets are arranged at the free end of the scaffold eye plate.
6. The method for erecting a scaffold platform between rudder horn according to claim 2, wherein the height of the scaffold eye plate weld angle is more than 5mm, the welding is uniform, and the scaffold eye plate edges and weld angles are polished smooth.
7. A method for measuring the deviation of upper and lower rudder holes of a rudder horn is characterized in that the measuring method comprises the following steps:
(1) in the stage of constructing the rudder system in a segmented reverse state, the central axes of an upper rudder hole and a lower rudder hole of a central-hanging rudder arm are aligned;
(2) erecting a rudder horn-to-rudder horn scaffold platform by the method of any one of claims 1 to 3;
(3) carrying a slipway scaffold platform on the slipway;
(4) hoisting the rudder system to a slipway for prepositioning in sections, wherein the rudder system is divided into normal sections;
(5) connecting a scaffold platform of a slipway with a scaffold platform between rudder horn;
(6) an upper wire drawing frame is arranged on the steering engine, a lower wire drawing frame is arranged on the slipway, a steel wire rope is arranged between the upper wire drawing frame and the lower wire drawing frame, the steel wire rope sequentially passes through an upper rudder hole and a lower rudder hole of the rudder arm, the steel wire rope and the center line of the rudder system are arranged in a superposition mode or within an allowable error range, and the steel wire rope and the center line of the stern shaft are arranged vertically or within the allowable error range;
(7) a measurer enters a scaffold platform between rudder horn through a slipway scaffold platform; four measuring points are respectively determined on the upper rudder hole and the lower rudder hole and are uniformly distributed; a measurer observes distances between four measuring points of an upper rudder hole and a steel wire rope on a first measuring platform of a scaffold platform between rudder horn hanging arms; a measurer observes distances between the four measuring points of the lower rudder hole and the steel wire rope on a second measuring platform of the scaffold platform between the rudder horn;
(8) and the positions of the rudder system sections are continuously adjusted, so that the distances from the four measuring points of the rudder hole on the rudder arm to the steel wire rope are equal or within an allowable error range, and the distances from the four measuring points of the rudder hole under the rudder arm to the steel wire rope are equal or within an allowable error range.
8. The measurement method according to claim 7, wherein the scaffold platform between the berth scaffold platform and the rudder horn is connected by a straight ladder, one end of the straight ladder is arranged on the berth scaffold platform, and the other end of the straight ladder is connected with the scaffold platform between the rudder horns.
9. The method according to claim 8, wherein a height difference exists between the scaffold platform between the slipway scaffold platform and the rudder horn, the lower end of the straight ladder is arranged on the slipway scaffold platform, the upper end of the straight ladder is provided with a hook, and the hook is hooked on a cross rod of the scaffold platform between the rudder horns.
10. The method according to claim 8, wherein the scaffold platform between the berth scaffold platform and the rudder horn is arranged in parallel, and the vertical ladder is arranged horizontally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442894.5A CN111572730B (en) | 2020-05-22 | 2020-05-22 | Method for erecting platform between rudder horn and method for measuring deviation of upper rudder hole and lower rudder hole of rudder horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010442894.5A CN111572730B (en) | 2020-05-22 | 2020-05-22 | Method for erecting platform between rudder horn and method for measuring deviation of upper rudder hole and lower rudder hole of rudder horn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111572730A CN111572730A (en) | 2020-08-25 |
| CN111572730B true CN111572730B (en) | 2021-12-17 |
Family
ID=72123430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010442894.5A Active CN111572730B (en) | 2020-05-22 | 2020-05-22 | Method for erecting platform between rudder horn and method for measuring deviation of upper rudder hole and lower rudder hole of rudder horn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111572730B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114313144B (en) * | 2021-12-22 | 2023-09-01 | 扬州中远海运重工有限公司 | Lifting bridge passing method for large container ship |
| CN115092377B (en) * | 2022-06-30 | 2024-02-02 | 上海外高桥造船有限公司 | Auxiliary unhooking device and unhooking method for rudder horn after hoisting |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336250B (en) * | 2011-08-12 | 2013-11-27 | 武昌造船厂集团有限公司 | Method for installing rudder horn |
| CN102407921B (en) * | 2011-09-01 | 2014-02-26 | 广州中船黄埔造船有限公司 | Mounting method for sectional inversely hung rudder arm |
| CN202491913U (en) * | 2012-01-18 | 2012-10-17 | 上海江南长兴重工有限责任公司 | Rudder horn support device |
| 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) |
| CN110606163B (en) * | 2018-06-15 | 2021-03-23 | 浙江国际海运职业技术学院 | Rudder system mounting process |
| CN110877674B (en) * | 2019-10-22 | 2021-06-01 | 沪东中华造船(集团)有限公司 | Positioning process of double rudder horn on subsection |
-
2020
- 2020-05-22 CN CN202010442894.5A patent/CN111572730B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111572730A (en) | 2020-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107100358B (en) | Cantilever bracket and bracket body special for unloading-free industrialized safety protection and construction method of cantilever bracket and bracket body | |
| CN111572730B (en) | Method for erecting platform between rudder horn and method for measuring deviation of upper rudder hole and lower rudder hole of rudder horn | |
| CN105507600A (en) | Hoisting system and hoisting construction method for large steel corridor trusses | |
| CN110182303B (en) | General assembly method of rudder horn | |
| CN205558304U (en) | Hoist and mount system of large -scale steel gallery truss | |
| CN103410322A (en) | Large-span parallel truss steel connective corridor construction method | |
| CN105586833B (en) | Stiff skeleton steel reinforcement cage global formation large-scale cast-in-place tall pier and thin wall construction method | |
| CN111794119A (en) | Temporary support system and hoisting method for basket type steel box tied arch | |
| CN108277977A (en) | A kind of column mould reinforcement system and preparation method thereof | |
| CN111255138B (en) | Construction method of continuous multi-span large-span high-altitude aluminum alloy latticed shell structure | |
| CN112695952A (en) | Building roof truss support structure and construction method | |
| CN107939141A (en) | Steel structure tower and construction method thereof | |
| CN104963521B (en) | A kind of system and construction method for head tower integral hoisting rotation | |
| CN207879008U (en) | Diameter Silo structure roof support system | |
| CN207774658U (en) | A kind of elevator tower crane standard knot wall-attached frame | |
| CN112663583B (en) | Construction method for total assembly and closure of pile stabilizing platform | |
| CN211689948U (en) | Suspension operation platform device for construction of suspension cable at tower part of cable-stayed bridge | |
| CN104264781B (en) | Latticed cylindrical surface steel structure latticed shell and construction method thereof | |
| WO2019024290A1 (en) | Method for building scaffold device in hyperboloidal linear cabin | |
| CN102022003A (en) | Suspended ceiling keel sheet assembling and hoisting method | |
| CN209924407U (en) | Combined working platform for steel structure high-altitude installation | |
| CN114263343A (en) | Formwork erecting method for combined building construction | |
| CN113216707A (en) | Construction method of pool wall of towing pool | |
| CN200971159Y (en) | Tower-shaped support of 'door' shaped assembly of liquified gas vessel | |
| CN216834210U (en) | Hanging and jumping device for ship jumping |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |