阅读说明：本技术 舵叶封板前移的作业方法 (Operation method for forward movement of rudder blade sealing plate ) 是由 樊冬辉 项勋 郑志波 杨震坤 丁尚友 许仁堂 陈大伟 杨杰 岳全增 于 2021-07-06 设计创作，主要内容包括：本发明公开了一种舵叶封板前移的作业方法,包括：平台准备阶段：制作样箱,将样箱放在各舵叶封板位置检验其线型,直到完全吻合为止,并切割余量；各舵叶封板分为：中间封板、两块下面封板和两块上面封板；平台安装阶段：先安装中间封板,再用铰链安装两块下面封板,再用铰链安装两块上面封板；船坞安装阶段：打开需要的舵叶封板,进行舵轴作业,进行封板装焊作业。本发明在平台上作业安全系数明显提高,大量装配作业在平台阶段得到提前完成。(The invention discloses an operation method for forward movement of a rudder blade sealing plate, which comprises the following steps: a platform preparation stage: manufacturing a sample box, placing the sample box at the position of each rudder blade sealing plate to test the line type of the sample box until the sample box is completely matched with the rudder blade sealing plate, and cutting allowance; each rudder blade sealing plate is divided into: the middle seal plate, the two lower seal plates and the two upper seal plates; a platform installation stage: firstly, mounting a middle sealing plate, then mounting two lower sealing plates by using a hinge, and then mounting two upper sealing plates by using a hinge; a dock installation stage: and opening a required rudder blade sealing plate, performing rudder shaft operation, and performing sealing plate installing and welding operation. The invention obviously improves the safety coefficient of operation on the platform, and a large amount of assembly operation is completed in advance at the platform stage.)

1. An operation method for forward movement of a rudder blade sealing plate is characterized by comprising the following steps:

a platform preparation stage: manufacturing a sample box, placing the sample box at the position of each rudder blade sealing plate to test the line type of the sample box until the sample box is completely matched with the rudder blade sealing plate, and cutting allowance; each rudder blade sealing plate is divided into: the middle seal plate, the two lower seal plates and the two upper seal plates;

a platform installation stage: firstly, mounting a middle sealing plate, then mounting two lower sealing plates by using a hinge, and then mounting two upper sealing plates by using a hinge;

a dock installation stage: and opening a required rudder blade sealing plate, performing rudder shaft operation, and performing sealing plate installing and welding operation.

2. The operating method for advancing the rudder blade sealing plate according to claim 1, wherein in the platform preparation phase, flat irons are used for knocking out sample strips according to the linear shape of the position of the rudder blade sealing plate, and then the sample strips on four sides are welded and spliced into a sample box;

and moving the sample box on the rudder blade sealing plate until the linear completely-inosculating position, drawing a margin line, cutting, beveling, polishing, and finally installing hinges on the lower sealing plate and the upper sealing plate according to requirements.

3. The method of claim 1, wherein during the stage of installing the platform,

installing a middle sealing plate: after the rudder blade is hoisted in place, the upper surface is directly and firmly positioned, and the lower surface is connected between the middle sealing plate and the rudder blade by a channel steel;

the following sealing plates are installed: the lifting lugs are arranged on the concave surface of the lower sealing plate, the sling penetrates through the holes of the lower sealing plate from the holes of the upper sealing plate, and then is fixed on the lifting lugs in a shackle manner and is lifted to the mounting position at a slow speed; one surface is fixed by a hinge, the other three surfaces are fixed by iron plates through electric welding between the lower sealing plate and the rudder blade, when the influence of the installation of the rudder shaft in the dock is caused, the fixed iron plates are removed, and the lower sealing plate is opened;

the upper sealing plate is installed: the convex surface of shrouding above the lug dress, shackle snap-on is on the lug, and to the mounting position is hung to the shrouding above, and is the same with shrouding below, and the one side carries out the hinge and fixes, and trilateral iron plate carries out electric welding fixed to last shrouding and rudder blade between in addition, treats that dock installation rudder axle influences, demolishs fixed iron plate, opens above shrouding.

4. The method for operating the forward movement of the rudder blade sealing plate according to claim 1, wherein in the dock installation stage:

after the hoisting of the rudder shaft and the rudder blade is finished, opening a rudder blade sealing plate at one side, if the rudder blade sealing plate at one side is opened under the condition that the rudder blade sealing plate at the other side cannot be produced, an assembler carries out effective matched production according to the requirement of a fitter, once the operation of the rudder shaft reaches the standard, the assembler directly carries out the installation operation of the rudder blade sealing plate, at the moment, the rudder blade sealing plate is in a no-allowance state, and moreover, a groove is already milled, and the welding operation can be carried out after the positioning is finished;

during assembly, closing the rudder blade sealing plate, checking the surrounding gap condition, and adjusting if deviation exists; after the flat place is completely fixed, the uneven place is made, and the position can be adjusted by using a jack; if the deviation is large, forced assembly cannot be carried out, and the firer is matched with the installation operation when necessary; and welding is carried out according to a welding process and a welding sequence, after backing welding is finished, an assembler removes the clamping horse plate, and finally polishing and repairing are carried out.

Technical Field

The invention relates to the field of ship construction, in particular to an operation method for forward movement of a rudder blade sealing plate.

Background

When the bulk cargo ship is built, the last construction before undocking is the rudder blade sealing plate. After the whole ship body is completely assembled and welded, the rudder shaft is penetrated and the rudder blade is installed again, the machine adjusting part is screwed up by the bolt and then debugs the rudder blade, and the rudder blade can be sealed after debugging is finished. The shrouding totally 5, because whole operation is in the below of hull, can not use the high to hang and hoist the shrouding, can only use the truck crane to hang the rudder blade shrouding to corresponding position, the assembler reuses the calabash and hangs the board on the rudder blade, slowly counterpoints again, cutting allowance, installation shrouding, grooving, electric welding, detect a flaw, the nature of sealing, a series of operations such as paint. A small working space is used for high-altitude operation, 4-5 high-altitude operation vehicles are used, four working types are involved, stereoscopic crossing operation and the like exist, the danger coefficient is large, the working faces are relatively concentrated, and constructors often work continuously day and night and fatigue construction is carried out so as not to influence undocking. The safety is seriously threatened, and the operation quality is lowered to some extent. In order to reduce the last workload before undocking as much as possible, the scheme of forward moving of the rudder blade sealing plate is provided.

Disclosure of Invention

The invention aims to provide an operation method for forward movement of a rudder blade sealing plate, which obviously improves the operation safety coefficient on a platform and completes a large amount of assembly operation in advance at the platform stage.

The technical scheme for realizing the purpose is as follows:

an operation method for advancing a rudder blade sealing plate comprises the following steps:

a platform preparation stage: manufacturing a sample box, placing the sample box at the position of each rudder blade sealing plate to test the line type of the sample box until the sample box is completely matched with the rudder blade sealing plate, and cutting allowance; each rudder blade sealing plate is divided into: the middle seal plate, the two lower seal plates and the two upper seal plates;

a platform installation stage: firstly, mounting a middle sealing plate, then mounting two lower sealing plates by using a hinge, and then mounting two upper sealing plates by using a hinge;

a dock installation stage: and opening a required rudder blade sealing plate, performing rudder shaft operation, and performing sealing plate installing and welding operation.

Preferably, in the platform preparation stage, strip iron is used for knocking out sample strips according to the linear shape of the rudder blade sealing plate, and then the sample strips on four sides are welded and spliced into a sample box;

and moving the sample box on the rudder blade sealing plate until the linear completely-inosculating position, drawing a margin line, cutting, beveling, polishing, and finally installing hinges on the lower sealing plate and the upper sealing plate according to requirements.

Preferably, the assembly of the platform, during the stage of installation of the platform,

installing a middle sealing plate: after the rudder blade is hoisted in place, the upper surface is directly and firmly positioned, and the lower surface is connected between the middle sealing plate and the rudder blade by a channel steel;

the following sealing plates are installed: the lifting lugs are arranged on the concave surface of the lower sealing plate, the sling penetrates through the holes of the lower sealing plate from the holes of the upper sealing plate, and then is fixed on the lifting lugs in a shackle manner and is lifted to the mounting position at a slow speed; one surface is fixed by a hinge, the other three surfaces are fixed by iron plates through electric welding between the lower sealing plate and the rudder blade, when the influence of the installation of the rudder shaft in the dock is caused, the fixed iron plates are removed, and the lower sealing plate is opened;

the upper sealing plate is installed: the convex surface of shrouding above the lug dress, shackle snap-on is on the lug, and to the mounting position is hung to the shrouding above, and is the same with shrouding below, and the one side carries out the hinge and fixes, and trilateral iron plate carries out electric welding fixed to last shrouding and rudder blade between in addition, treats that dock installation rudder axle influences, demolishs fixed iron plate, opens above shrouding.

Preferably, the dock installation stage:

after the hoisting of the rudder shaft and the rudder blade is finished, opening a rudder blade sealing plate at one side, if the rudder blade sealing plate at one side is opened under the condition that the rudder blade sealing plate at the other side cannot be produced, an assembler carries out effective matched production according to the requirement of a fitter, once the operation of the rudder shaft reaches the standard, the assembler directly carries out the installation operation of the rudder blade sealing plate, at the moment, the rudder blade sealing plate is in a no-allowance state, and moreover, a groove is already milled, and the welding operation can be carried out after the positioning is finished;

during assembly, closing the rudder blade sealing plate, checking the surrounding gap condition, and adjusting if deviation exists; after the flat place is completely fixed, the uneven place is made, and the position can be adjusted by using a jack; if the deviation is large, forced assembly cannot be carried out, and the firer is matched with the installation operation when necessary; and welding is carried out according to a welding process and a welding sequence, after backing welding is finished, an assembler removes the clamping horse plate, and finally polishing and repairing are carried out.

The invention has the beneficial effects that: the invention realizes the forward movement of the rudder blade sealing plate operation through effective step design, and reduces the operation time of the dock rudder blade sealing plate by putting a large amount of rear assembly operation to front construction. The high-altitude operation of the dock is changed into the operation at the lower position of the platform, and the safety factor is improved. The vertical operation of the dock is changed into the horizontal operation of the platform, and the operation method is simple. The three-dimensional crossing operation is reduced, and the waiting time caused by the influence of the crossing operation is reduced. The number of the high-altitude operation vehicles and the service time are reduced. The operation of a truck crane and a hoist tool are not needed.

Drawings

FIG. 1 is a flow chart of the operation method of the rudder blade sealing plate advancing of the present invention;

FIG. 2 is a schematic view of the platform of the present invention in operation;

FIG. 3 is a schematic diagram of a sample box manufacturing location according to the present invention;

FIG. 4 is a schematic view of the rudder blade sealing plate preparation operation of the present invention;

FIG. 5 is a schematic view showing the installation positions of rudder blade sealing plates in the present invention;

FIG. 6 is a schematic view of the installation of the lower closure plate of the present invention;

FIG. 7 is a schematic view of the upper closure plate of the present invention installed;

FIG. 8 is a schematic view of the plate welding operation of the present invention.

Detailed Description

The invention will be further explained with reference to the drawings.

Referring to fig. 1 to 8, the operation method for advancing the rudder blade sealing plate according to the present invention includes the following steps:

1) a platform preparation stage: and (4) manufacturing a sample box, placing the sample box at the position of each rudder blade sealing plate to test the line type of the sample box until the sample box is completely matched, and cutting allowance. Specifically, 4mm 15mm small flat iron is used for knocking out sample strips according to the line type of the position of the rudder blade sealing plate, and then the sample strips on four sides are welded and spliced into a sample box. As shown in fig. 2 and 3. And then placing the box on a rudder blade sealing plate to test the line type until the box is completely matched, marking a margin line, cutting, beveling and polishing. And finally, installing an iron hinge on the sealing plate according to the requirement. A large amount of work is moved forward.

Each rudder blade sealing plate is divided into: middle shrouding, two lower shrouding and two upper surface shrouding. The middle sealing plate does not need to be provided with a hinge, the middle sealing plate is directly welded after being installed, the hinges need to be arranged on the other four plates, and the middle sealing plate can be opened to perform operation when a subsequent dock rudder stock is debugged. As shown in fig. 4.

2) A platform installation stage: the middle sealing plate is installed firstly, the two lower sealing plates are installed by hinges, and the two upper sealing plates are installed by hinges. As shown in fig. 5. Specifically, the method comprises the following steps:

installing a middle sealing plate: after the rudder blade is hoisted in place, the upper surface is directly and firmly positioned, and the lower surface is connected between the middle sealing plate and the rudder blade by a channel steel;

the following sealing plates are installed: the lifting lugs are arranged on the concave surface of the lower sealing plate, the sling penetrates through the holes of the lower sealing plate from the holes of the upper sealing plate, and then is fixed on the lifting lugs in a shackle manner and is lifted to the mounting position at a slow speed; one surface is fixed by a hinge, the other three surfaces are fixed by iron plates through electric welding between the lower sealing plate and the rudder blade, when the influence of the installation of the rudder shaft in the dock is caused, the fixed iron plates are removed, and the lower sealing plate is opened; and closing the machine again after the operation is finished, and performing welding operation. As shown in fig. 6.

The upper sealing plate is installed: the convex surface of shrouding above the lug dress, shackle snap-on is on the lug, and to the mounting position is hung to the shrouding above, and is the same with shrouding below, and the one side carries out the hinge and fixes, and trilateral iron plate carries out electric welding fixed to last shrouding and rudder blade between in addition, treats that dock installation rudder axle influences, demolishs fixed iron plate, opens above shrouding. And closing the machine again after the operation is finished, and performing welding operation. As shown in fig. 7.

3) A dock installation stage: and opening a required rudder blade sealing plate, performing rudder shaft operation, and performing sealing plate installing and welding operation. As shown in fig. 8. Specifically, the method comprises the following steps:

after the hoisting of the rudder shaft and the rudder blade is finished, the bearing is required to be pinned, the rudder shaft is required to be adjusted, and the like. Open one side rudder blade shrouding, if open the opposite side again under the condition that one side rudder blade shrouding can't carry out production, the assembler carries out effectual cooperation production according to the requirement of pincers worker, in case rudder axle operation back up to standard, the assembler directly carries out rudder blade shrouding installation operation, and rudder blade shrouding is the no allowance state this moment, and the groove has been opened and has ground, fixes a position the end and just can welding operation.

During assembly, closing the rudder blade sealing plate, checking the surrounding gap condition, and adjusting if deviation exists; after the flat place is completely fixed, the uneven place is made, and the position can be adjusted by using a jack; if the deviation is large, forced assembly cannot be carried out, and the firer is matched with the installation operation when necessary; the welding is operated according to the welding process and the welding sequence, and after the backing welding is finished, an assembler removes the clamping horse plate, so that the welding quality can be ensured more. And finally, polishing and repairing.

The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.