CN111661275B - Rudder stock replacing process - Google Patents
Rudder stock replacing process Download PDFInfo
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- CN111661275B CN111661275B CN202010474059.XA CN202010474059A CN111661275B CN 111661275 B CN111661275 B CN 111661275B CN 202010474059 A CN202010474059 A CN 202010474059A CN 111661275 B CN111661275 B CN 111661275B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B81/00—Repairing or maintaining vessels
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- 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
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Abstract
The invention discloses a new rudder stock replacing process. The method comprises the following steps: step 1, dismantling a steering engine, an old rudder stock, a rudder blade, an old rudder pintle, an old rudder stock bearing, an old rudder pintle bearing and an old process sleeve, and repairing the central line of a rudder system; step 2, manufacturing a new rudder stock and a new rudder pintle, and checking and repairing the central line of the rudder blade; step 3, installing a rudder blade and a new rudder stock, and then jacking the rudder blade, so that a first distance D1 between the rudder blade and the bottom surface of a rudder button is equal to the thickness D of an anti-jump block, the standard anti-jump gap D1 and the pressed amount D2 between the new rudder stock and a steering engine; step 4, installing a steering engine and jacking a rudder blade, so that a new rudder stock is pressed into the rudder engine according to the pressed-in amount d2, and fixing the new rudder stock and the steering engine; step 5, performing other work; and 6, performing rudder swinging inspection. The rudder stock renewing process of the invention fixes the new rudder stock and the steering engine under the condition of meeting the space between the rudder blade and the bottom surface of the rudder button, ensures that the anti-jumping clearance can not be too large or too small, further can not influence the use effect of the rudder blade, and has simple operation and low repair cost.
Description
Technical Field
The invention belongs to the technical field of ship repair and modification, and particularly relates to a rudder stock replacing process.
Background
The rudder stock in the ship is a whole transmission system for connecting the steering engine and the rudder blade, the rudder stock has the functions of transmitting power emitted by the steering engine to the rudder blade, swinging the rudder blade to react with water to enable the ship to sail in a changed direction, and bearing the total weight of the rudder pintle and the rudder blade, the rudder stock accounts for the most important part in the whole rudder system, and for items needing to be renewed, such as sea damage, breakage and the like of the rudder stock, how to disassemble, repair and install the rudder stock needs to be investigated according to the current situation, and reason analysis and a measure making are carried out to ensure that the rudder stock is finished according to the quality and put into use.
In the actual repair renew, the old rudder stock that will renew because there is wearing and tearing or the fracture condition appears, can't measure and check whether have the deviation with original design, if the length of old rudder stock is great with the dimensional deviation of original design, can prevent that the jump clearance produces great influence promptly to the interval between rudder blade and the rudder button bottom surface, and then influence the result of use of rudder blade.
The anti-jump gap is a design gap between the rudder blade and the bottom surface of the rudder button, and the anti-jump gap is standardized when the ship is designed and manufactured. In actual repair and renewal, an anti-jump block is generally welded on the bottom surface of the rudder button, and the anti-jump block can be processed and replaced according to the actual gap between the installed rudder blade and the bottom surface of the rudder button, and finally reaches the standard anti-jump gap.
However, due to the limitation of the operation space, the operation difficulty is high, the welding quality of the anti-jumping block is poor, and the repair and replacement cost is high.
Disclosure of Invention
The invention aims to provide a new rudder stock replacing process so as to effectively overcome the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a rudder stock renewing process comprises the following steps:
step 1, dismantling a steering engine, an old rudder stock, a rudder blade, an old rudder pintle, an old rudder stock bearing, an old rudder pintle bearing and an old process sleeve, and repairing a rudder system central line;
step 2, manufacturing a new rudder stock and a new rudder pintle, and checking and repairing the central line of the rudder blade;
step 3, installing a rudder blade and a new rudder stock, jacking the rudder blade and the new rudder stock together, and enabling a first distance D1 between the rudder blade and the bottom surface of a rudder button to be equal to the thickness D of an anti-jump block, the standard anti-jump gap D1 and the pressed-in amount D2 of the new rudder stock and a steering engine;
step 4, installing a steering engine and jacking a rudder blade, so that a new rudder stock is pressed into the rudder engine according to the pressed-in amount d2, and fixing the new rudder stock and the steering engine;
step 5, installing others and performing other works;
and 6, performing rudder swinging inspection.
Compared with the prior art, the rudder stock renewing process has the advantages that the new rudder stock and the steering engine are fixed under the condition that the space between the rudder blade and the bottom surface of the rudder button, namely the anti-jump gap is met, the anti-jump gap is not too large or too small, the using effect of the rudder blade is not influenced, meanwhile, the anti-jump block is welded firstly, the space between the rudder blade and the bottom surface of the rudder button is adjusted, and the rudder blade is installed after the anti-jump gap is met, so that the operation is simple, and the repair cost is low. In the rudder stock renewing process, as the steering engine is not in conical fit with a new rudder stock at the assembling position, the new rudder stock and the rudder blade can be lifted upwards together, the space between the rudder blade and the bottom surface of a rudder button is met firstly, then the steering engine is sleeved in place, the rudder angle is adjusted, finally the steering engine is pressed, the new rudder stock protrudes upwards along with the increase of the pressed-in amount, and the renewing work of the rudder stock is further completed.
Further, the step 1 comprises:
step 1.1, hoisting and detaching a steering engine, an old rudder stock, a rudder blade and an old rudder pintle in sequence;
step 1.2, disassembling an old rudder stock bearing, an old rudder pintle bearing and an old process sleeve and cleaning the surface of an inner hole of a rudder pintle bearing seat;
step 1.3, after processing a new rudder stock bearing, a new rudder pintle bearing and a new process sleeve, freezing and installing the new rudder stock bearing, then drawing a wire on site to fix the new process sleeve, and pouring epoxy resin for fixing;
and 1.4, freezing and installing a new rudder pintle bearing.
The rudder stock bearing, the rudder pintle bearing and the process sleeve are worn or broken after being used for a long time, the central line of a rudder system needs to be repaired, the old rudder stock bearing, the old rudder pintle bearing and the old process sleeve are disassembled, the installation positions are cleaned, attachments are removed, when the new rudder stock bearing, the new rudder pintle bearing and the new process sleeve are installed, the steering engine is temporarily installed back, two points of an inner hole of the steering engine and an inner hole of the rudder stock bearing are taken as references on site, the central line is determined by drawing a steel wire, then epoxy resin is poured to fix the new process sleeve, and finally the new rudder stock bearing and the new rudder pintle bearing are installed in a freezing mode.
Further, the step 2 comprises:
step 2.1, manufacturing and processing a new rudder stock and a new rudder pintle according to the design size;
and 2.2, performing brushing fitting on the taper hole of the rudder blade by using the new rudder stock and the new rudder pintle.
Still further, the step 2.2 comprises:
step 2.2.1, using a new rudder stock to brush and match the taper hole of the rudder blade, arranging the rudder blade on a horizontal platform, ensuring the levelness of the center line of the rudder blade, and cleaning a bearing seat of the rudder stock;
step 2.2.2, arranging the new rudder stock on a walking vehicle capable of horizontally and linearly moving, and adjusting the moving direction of the walking vehicle to enable the center of the new rudder stock to be consistent with the center of the taper hole of the rudder blade;
step 2.2.3, coating color oil on the outer surface of the cone of the new rudder stock, then slowly pushing the cone of the new rudder stock into the taper hole of the rudder blade, and checking the arrival condition of the surface of the taper hole of the rudder blade;
step 2.2.4, polishing the coloring points by using a grinding wheel until the coloring points are uniform;
and 2.2.5, performing brushing fitting on the taper hole of the rudder blade by using the new rudder pintle according to the steps.
Before the new rudder stock and the rudder blade are installed, the center line of the rudder blade needs to be repaired, the new rudder stock and the new rudder pintle are used for performing brush fitting on the surface of the taper hole of the rudder blade, and the matching condition of the taper hole of the rudder blade is checked so as to meet the installation requirement.
Further, the step 3 comprises:
step 3.1, hoisting the rudder blade, installing a shaft seal, and hoisting and installing a new rudder stock to be assembled with the rudder blade;
3.2, jacking the rudder blade and the new rudder stock along the installation position by using a jacking tool, so that a first distance D1 between the rudder blade and the bottom surface of the rudder button is equal to the thickness D of an anti-jump block, the standard anti-jump gap D1 and the pressed amount D2 between the new rudder stock and the steering engine;
step 3.3, adjusting the angle of the rudder blade to a zero position and fixing;
and 3.4, installing the new rudder stock in a water seal manner.
Still further, said step 3.3 comprises:
3.3.1, finding out the longitudinal center line of the hull by using a total station;
step 3.3.2, adjusting the longitudinal center line of the rudder blade to be consistent with the longitudinal center line of the ship body;
and 3.3.3, temporarily fixing the rudder blade.
Because the steering wheel does not have the toper cooperation with new rudderstock on the assembly position, new rudderstock can reciprocate along the mounted position. During installation, a new rudder pintle is installed on a rudder blade, the rudder blade and a new rudder stock are installed, then a first distance D1 between the rudder blade and the bottom surface of a rudder button is adjusted by using a jacking tool to enable the first distance D1 to meet the requirement that D1 is D + D1+ D2 (wherein D is the thickness of an anti-jump block, D1 is a standard anti-jump gap, and D2 is the pressed amount of the new rudder stock and a steering engine), then a total station is used for adjusting the longitudinal center line of the rudder blade to be consistent with the longitudinal center line of a ship body, and finally the rudder blade is temporarily fixed.
Further, the step 4 comprises:
step 4.1, hoisting and installing a steering engine;
step 4.2, jacking the rudder blade to enable the new rudder stock to be pressed into the rudder machine according to the pressed-in amount d 2;
step 4.3, adjusting an oil cylinder on the steering engine to be in a middle zero-degree position;
step 4.4, adjusting the angle indicator of the steering engine and the angle indicator of the ship cab to zero degree;
and 4.5, hydraulically installing and fixing the steering engine and the new rudder stock.
After the steering engine is hoisted and installed in place, the rudder blade is jacked by using a jacking tool, so that a new rudder stock is pressed into the rudder machine according to the pressed-in amount D2, the first distance D1 between the rudder blade and the bottom surface of a rudder button is adjusted and changed into a second distance D2, and D2 + D1 (wherein D is the thickness of an anti-jump block, and D1 is a standard anti-jump gap) is met, and the requirements are met. Meanwhile, the angles of the rudder blade, the steering engine and the angle indicator of the ship cab are adjusted to be consistent, so that the normal running of the ship is ensured.
Still further, the step 5 includes:
step 5.1, measuring and checking a new rudder stock bearing, a new rudder pintle bearing and an anti-jump gap;
and 5.2, welding and installing a temporary hole-opening sealing plate on the rudder blade.
In order that the invention may be more clearly understood, specific embodiments thereof will be described below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of the rudder stock after the replacement is completed.
FIG. 2 is an enlarged schematic view at P of FIG. 1;
FIG. 3 is an enlarged schematic view at Q of FIG. 1;
FIG. 4 is a schematic view of rudder blade centerline detection and repair in accordance with the present invention;
FIG. 5 is a schematic view of the internal structure of the steering engine of the present invention;
fig. 6 is a partial schematic view of the new rudder stock before it is pressed into the steering engine.
Wherein the reference numerals are:
10. a new tiller; 20. a new rudder pintle; 30. a rudder blade; 40. a rudder button; 50. an anti-jump block; 60. a new rudder bar bearing; 61. a rudder bar bearing process sleeve; 70. a new rudder pintle bearing; 71. a new rudder pintle bearing process sleeve; 80. an epoxy resin; 90. a steering engine; 91. a nut; 92. sealing the rubber sheet; 93. a pressure oil chamber; 94. a jacket; 95. an inner sleeve;
A. the center of the big end of the conical hole of the rudder blade is provided with a rudder stock; B. the center of the small end of the conical hole of the rudder blade is provided with a rudder stock; C. the center of the big end of the conical hole of the rudder blade is provided with a rudder pintle; D. the center of the small end of the conical hole of the rudder blade is provided with a rudder pintle; E. the thickness center of a rudder blade sideboard; K. a rudder system central line; s, the center line of the rudder blade.
Detailed Description
In order to overcome the defects and shortcomings in the prior art, the invention provides a rudder stock replacing process, which reduces the operation difficulty and the repair and replacement cost.
In the description of the embodiment of the present invention, the present invention will be specifically described by taking an example of a "nord sea" rudder stock renewal project which proceeds me department in 1 month of 2020. The wheel docking check condition is: the O-shaped rubber ring groove position of the large end of the cone part of the rudder stock is broken, the rudder pintle bearing disappears, the inner hole of the rudder stock bearing is abraded to 5mm, the lower support position of the rudder pintle bearing is completely abraded and deformed due to abrasion of the process sleeve of the rudder pintle bearing, so that the rudder stock, the rudder pintle, the rudder stock bearing, the rudder pintle bearing and the process sleeve of the rudder pintle bearing need to be replaced. Fig. 1 is a schematic structural view of the rudder stock after the replacement of the rudder stock is completed, which shows a schematic position view of the rudder stock and other structural members, wherein K is a central line of a rudder system.
A rudder stock renewing process comprises the following steps:
step 1, dismantling the steering engine 90, the old rudder stock, the rudder blade 30, the old rudder pintle, the old rudder stock bearing, the old rudder pintle bearing and the old process sleeve, and repairing a rudder system central line K.
Wherein the step 1 specifically comprises:
and 1.1, hoisting and detaching the steering engine 90, the old rudder stock, the rudder blade 30 and the old rudder pintle in sequence.
Step 1.2, disassembling an old rudder stock bearing, an old rudder pintle bearing and an old process sleeve and cleaning the surface of an inner hole of a rudder pintle bearing seat;
as the rudder stock bearing, the rudder pintle bearing and the process sleeve are worn or broken after being used for a long time, the central line K of the rudder system needs to be repaired, and the old rudder stock bearing, the old rudder pintle bearing and the old process sleeve need to be detached, the installation position needs to be cleaned, and attachments are removed.
Step 1.3, after the new rudder stock bearing 60, the new rudder pintle bearing 70 and the new process sleeve are processed, the new rudder stock bearing 60 is installed in a freezing way, then a central new process sleeve is pulled to fix on site, and epoxy resin 80 is poured for fixing;
the new process sleeve is a new rudder pintle bearing process sleeve 71 which needs to be replaced, the rudder stock bearing process sleeve 61 is an original process sleeve which does not need to be replaced, and the position of the process sleeve is schematically shown in fig. 1, 2 and 3. When the new rudder pintle bearing 70 is installed, the steering engine 90 is temporarily installed back, the new rudder pintle bearing 60 is installed in a freezing mode, two points of an inner hole in the steering engine 90 and an inner hole in the new rudder pintle bearing 60 are taken as references on site, a steel wire is pulled to determine a center line, the new rudder pintle bearing process sleeve 71 is aligned on site, and then epoxy resin 80 is poured to fix the new rudder pintle bearing process sleeve 71.
Step 1.4, freezing and installing a new rudder pintle bearing 70;
and after the central line K of the rudder system is repaired, a new rudder pintle bearing 70 is installed in a freezing way. The new rudder stock bearing 60 and the new rudder pintle bearing 70 are made of sialon (a synthetic material), an interference mounting mode is adopted, the outer diameter of the bearing is contracted to be about 2-3 mm smaller than the inner diameter of the bearing seat by generally adopting dry ice freezing, then the new rudder stock bearing 60 and the new rudder pintle bearing 70 are placed into mounting positions, the mounting positions are unfrozen to normal temperature along with time, and the new rudder stock bearing 60 and the new rudder pintle bearing 70 are restored to original sizes and are fixed with a ship body structure in an interference fit mode.
And 2, manufacturing a new rudder stock 10 and a new rudder pintle 20, and checking and repairing the central line S of the rudder blade.
Wherein the step 2 specifically comprises:
and 2.1, manufacturing and processing the new rudder stock 10 and the new rudder pintle 20 according to the design size.
And 2.2, performing brushing fitting on the surface of the taper hole of the rudder blade 30 by using the new rudder stock 10 and the new rudder pintle 20, and checking the fitting condition of the taper hole on the rudder blade 30 so as to meet the installation requirement.
Wherein the step 2.2 specifically comprises:
step 2.2.1, using the new rudder stock 10 to brush and match the taper hole on the rudder blade 30, arranging the rudder blade 30 on a horizontal platform, ensuring the levelness of the central line S of the rudder blade, and cleaning the taper hole on the rudder blade 30;
before the brushing fitting is carried out, the central line S of the rudder blade is checked and repaired. As shown in fig. 4, it is a schematic diagram of the detection and repair of the center line of the rudder blade, where S is the center line of the rudder blade, a is the center of the large end of the conical hole of the rudder stock, B is the center of the small end of the conical hole of the rudder stock, C is the center of the large end of the conical hole of the rudder stock, D is the center of the small end of the conical hole of the rudder stock, and E is the center of the thickness of the side plate of the rudder blade. Firstly, adjusting A, D, E three points to be positioned on the same plane, and then marking a transverse rolling line to check the deformation condition of the rudder blade 30; then, the eccentricity of B, C two points was measured by drawing a steel wire with reference to A, D two points. Wherein, the eccentricity of B, C is not more than 0.10 mm. The inspection shows that the point B is 0.45mm behind and 0.5mm to the right; the point C is 0.25mm ahead and 0.35mm to the right, and then two taper holes of the rudder blade 30 need to be matched.
Step 2.2.2, arranging the new rudder stock 10 on a walking vehicle capable of moving horizontally and linearly, and adjusting the moving direction of the walking vehicle to enable the center of the new rudder stock 10 to be consistent with the connecting line of two points A, D on the rudder blade 30;
step 2.2.3, painting color oil on the outer surface of the cone of the new rudder stock 10, then slowly pushing the cone of the new rudder stock 10 into the taper hole of the rudder blade 30, and checking the arrival condition of the surface of the taper hole of the rudder blade 30;
step 2.2.4, polishing the coloring points by using a grinding wheel until the coloring points are uniform;
and 2.2.5, performing brushing fitting on the taper hole of the rudder blade 30 by using the new rudder pintle 20 according to the steps so as to finish repairing the rudder blade center line S.
And step 3, installing the rudder blade 30 and the new rudder stock 10, jacking the rudder blade 30 after the rudder blade 30 is jacked, and jacking the rudder blade 30 and the new rudder stock 10 together, so that the first distance D1 between the bottom surfaces of the rudder blade 30 and the rudder button 40 is equal to the thickness D of an anti-jump block, the standard anti-jump gap D1 and the press-in amount D2 of the new rudder stock and the rudder stock.
Referring to the relevant drawing data of the steering engine 90 of the ship, it is known that the structure of the steering engine 90 mainly comprises a nut 91, a sealing rubber sheet 92, a pressure oil cavity 93, a thick outer sleeve 94 (i.e. a steering engine oil cylinder body) and a thin inner sleeve 95, as shown in fig. 5, which is a schematic diagram of the internal structure of the steering engine of the present invention. The operating principle of this steering wheel 90 is: the outer sleeve 94 is elastically expanded by utilizing the radial pressure generated by a hydraulic device, then the inner sleeve 95 and the outer sleeve 94 are slowly moved towards each other by utilizing the axial pressure, and the inner sleeve 95 is elastically deformed and tightly hooped on the new rudder stock 10 in the moving process, so that interference fit is generated between the inner sleeve 95 and the outer sleeve 94 and between the inner sleeve 95 and the new rudder stock 10. The press-in amount d2 of the new rudder stock 10 into the steering engine 90 is 35 mm.
Since the steering engine 90 does not have a conical fit with the new rudder stock 10 in the assembled position, the new rudder stock 10 can be moved up and down along the installation position. During installation, the rudder blade 30 and the new rudder stock 10 are installed, then a jacking tool is used for adjusting a first distance D1 between the rudder blade 30 and the bottom surface of the rudder knob 40 to enable the first distance D1 to meet the requirement that D1 is D + D1+ D2 (wherein D is the thickness of an anti-jump block and is 47mm, D1 is a standard anti-jump gap and is 3mm, D2 is the pressing-in amount of the new rudder stock and the steering engine and is 35mm, and therefore D1 is 85mm), as shown in fig. 6, the method is a partial schematic diagram before the new rudder stock is pressed into the steering engine. And then adjusting the longitudinal center line of the rudder blade 30 to be consistent with the longitudinal center line of the ship body by using a total station, and finally temporarily fixing the rudder blade 30.
Specifically, step 3 includes:
step 3.1, hoisting the rudder blade 30, installing a shaft seal, hoisting and installing a new rudder stock 10 and assembling the rudder blade 30;
before the rudder blade 30 is hoisted, the new rudder pintle 20 is installed on the rudder blade 30, and then the new rudder pintle 20 is hoisted together to be sleeved in the new rudder pintle bearing 70. And the anti-jump block 50 installed on the rudder button 40 may be an original anti-jump block or a welded anti-jump block which is newly processed, and the thickness d of the anti-jump block is 47 mm.
Step 3.2, using a jacking tool which is a hydraulic oil jack to jack the rudder blade 30 and the new rudder stock 10 along the installation position, as shown in fig. 6, so that a first distance D1 between the rudder blade 30 and the bottom surface of the rudder button 40 is equal to the thickness D of the anti-jump block + the standard anti-jump gap D1+ the pressed-in amount D2 between the new rudder stock and the steering engine, that is, the first distance D1 is adjusted to be 85 mm.
Step 3.3, adjusting the angle of the rudder blade 30 to a zero position and fixing;
this step 3.3 specifically comprises:
3.3.1, finding out the longitudinal center line of the hull by using a total station;
step 3.3.2, adjusting the longitudinal center line of the rudder blade 30 to be consistent with the longitudinal center line of the ship body;
step 3.3.3, temporarily fixing the rudder blade 30 to prevent the angle of the rudder blade 30 from changing;
and 3.4, installing the new rudder stock 10 in a water seal mode.
And 4, installing a steering engine 90 and jacking the rudder blade 30, so that the new rudder stock 10 is pressed into the steering engine 90 according to the pressed-in amount d2, and then fixing the new rudder stock 10 and the steering engine 90.
Wherein the step 4 specifically comprises:
step 4.1, hoisting and installing a steering engine 90;
step 4.2, jacking the rudder blade 30 by using hydraulic oil so that the new rudder stock 10 is pressed into the steering engine 90 according to the pressed-in amount d 2;
after the steering engine 90 is hoisted and mounted to a position, hydraulic oil is used for jacking the rudder blade 30, so that the new rudder stock 10 is pressed into the steering engine 90 according to the pressed-in amount D2, as shown in fig. 1 and 3, at this time, the first distance D1 between the rudder blade 30 and the bottom surface of the rudder button 40 is adjusted and changed into a second distance D2, and D2 is D + D1 (wherein D is the thickness of the anti-jump block and is 47mm, D1 is a standard anti-jump gap and is 3mm, so that D2 is 50mm), namely, the distance between the rudder blade and the bottom surface of the rudder button is adjusted from 85mm to 50mm, and meanwhile, the standard anti-jump gap of 3mm is provided, so that the requirement is met;
step 4.3, adjusting the oil cylinder on the steering engine 90 to be at the middle zero-degree position;
step 4.4, adjusting the angle indicator of the steering engine 90 and the angle indicator of the ship cab to be zero degrees;
and 4.5, hydraulically installing and fixing the steering engine 90 and the new rudder stock 10.
And 5, installing other work and performing other work.
Wherein the step 5 specifically comprises:
step 5.1, measuring and checking a new rudder stock bearing 60, a new rudder pintle bearing 70 and an anti-bounce clearance;
and 5.2, welding and installing a temporary hole-opening sealing plate on the rudder blade 30.
After the steering engine 90 and the new rudder stock 10 are installed and fixed hydraulically, the installation conditions of the new rudder stock bearing 60 and the new rudder pintle bearing 70 are checked, and simultaneously, a feeler gauge is used for measuring and checking whether the anti-jump gap meets the requirement or not; fabrication holes temporarily opened for installing other structural members are formed in the steering engine 90 and the rudder blade 30, and after the internal structural members are installed, the fabrication holes are required to be installed again.
And 6, performing rudder swinging inspection.
And after all projects of replacing the rudder stock are completed, reporting the inspection of ship inspection in the east of the ship, and carrying out the inspection of rudder swinging on site to ensure that the rudder swinging is smooth.
Compared with the prior art, the rudder stock renewing process has the advantages that the steering engine is not in conical fit with the new rudder stock at the assembling position, so that the new rudder stock and the rudder blade can be lifted upwards together, the space between the rudder blade and the bottom surface of the rudder button is met firstly, the steering engine is sleeved in place, the angle of the rudder blade is adjusted, the steering engine is pressed, the new rudder stock protrudes upwards along with the increase of the pressed-in amount, and the rudder stock renewing work is completed. According to the rudder stock renewing process, the new rudder stock and the steering engine are fixed under the condition that the space between the rudder blade and the bottom surface of the rudder button, namely the anti-jump gap is met, so that the anti-jump gap is not too large or too small, the using effect of the rudder blade is not influenced, and meanwhile, the anti-jump block is installed firstly, then the space between the rudder blade and the bottom surface of the rudder button is adjusted, and the rudder blade is installed after the anti-jump gap is met, so that the operation difficulty is reduced, the repair and refit cost is reduced, and the benefit of a company is improved.
The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. A rudder stock renewing process is characterized by comprising the following steps:
step 1, dismantling a steering engine, an old rudder stock, a rudder blade, an old rudder pintle, an old rudder stock bearing, an old rudder pintle bearing and an old process sleeve, and repairing a rudder system central line;
step 2, manufacturing a new rudder stock and a new rudder pintle, and checking and repairing the central line of the rudder blade;
step 3, installing a rudder blade and a new rudder stock, jacking the rudder blade and the new rudder stock together, and enabling a first distance D1 between the rudder blade and the bottom surface of a rudder button to be equal to the thickness D of an anti-jump block, the standard anti-jump gap D1 and the pressed-in amount D2 of the new rudder stock and a steering engine;
step 4, installing a steering engine and jacking a rudder blade, so that a new rudder stock is pressed into the rudder engine according to the pressed-in amount d2, and fixing the new rudder stock and the steering engine;
step 5, installing others and performing other works;
and 6, performing rudder swinging inspection.
2. Tiller renewal process according to claim 1, characterized in that said step 1 comprises:
step 1.1, hoisting and detaching a steering engine, an old rudder stock, a rudder blade and an old rudder pintle in sequence;
step 1.2, disassembling an old rudder stock bearing, an old rudder pintle bearing and an old process sleeve and cleaning the surface of an inner hole of a rudder pintle bearing seat;
step 1.3, after processing a new rudder stock bearing, a new rudder pintle bearing and a new process sleeve, freezing and installing the new rudder stock bearing, then drawing a wire on site to fix the new process sleeve, and pouring epoxy resin for fixing;
and 1.4, freezing and installing a new rudder pintle bearing.
3. Tiller renewal process according to claim 1, characterized in that said step 2 comprises:
step 2.1, manufacturing and processing a new rudder stock and a new rudder pintle according to the design size;
and 2.2, performing brushing fitting on the taper hole of the rudder blade by using the new rudder stock and the new rudder pintle.
4. Tiller renewal process according to claim 3, characterized in that said step 2.2 comprises:
step 2.2.1, using a new rudder stock to brush and match the taper hole of the rudder blade, arranging the rudder blade on a horizontal platform, ensuring the levelness of the center line of the rudder blade, and cleaning a bearing seat of the rudder stock;
step 2.2.2, arranging the new rudder stock on a walking vehicle capable of horizontally and linearly moving, and adjusting the moving direction of the walking vehicle to enable the center of the new rudder stock to be consistent with the center of the taper hole of the rudder blade;
step 2.2.3, coating color oil on the outer surface of the cone of the new rudder stock, then slowly pushing the cone of the new rudder stock into the taper hole of the rudder blade, and checking the arrival condition of the surface of the taper hole of the rudder blade;
step 2.2.4, polishing the coloring points by using a grinding wheel until the coloring points are uniform;
and 2.2.5, performing brushing fitting on the taper hole of the rudder blade by using the new rudder pintle according to the steps.
5. Tiller renewal process according to claim 1, characterized in that said step 3 comprises:
step 3.1, hoisting the rudder blade, installing a shaft seal, and hoisting and installing a new rudder stock to be assembled with the rudder blade;
3.2, jacking the rudder blade and the new rudder stock along the installation position by using a jacking tool, so that a first distance D1 between the rudder blade and the bottom surface of the rudder button is equal to the thickness D of an anti-jump block, the standard anti-jump gap D1 and the pressed amount D2 between the new rudder stock and the steering engine;
step 3.3, adjusting the angle of the rudder blade to a zero position and fixing;
and 3.4, installing the new rudder stock in a water seal manner.
6. Tiller renewal process according to claim 5, characterized in that said step 3.3 comprises:
3.3.1, finding out the longitudinal center line of the hull by using a total station;
step 3.3.2, adjusting the longitudinal center line of the rudder blade to be consistent with the longitudinal center line of the ship body;
and 3.3.3, temporarily fixing the rudder blade.
7. Tiller renewal process according to claim 1, characterized in that said step 4 comprises:
step 4.1, hoisting and installing a steering engine;
step 4.2, jacking the rudder blade to enable the new rudder stock to be pressed into the rudder machine according to the pressed-in amount d 2;
step 4.3, adjusting an oil cylinder on the steering engine to be in a middle zero-degree position;
step 4.4, adjusting the angle indicator of the steering engine and the angle indicator of the ship cab to zero degree;
and 4.5, hydraulically installing and fixing the steering engine and the new rudder stock.
8. Tiller renewal process according to claim 2, characterized in that said step 5 comprises:
step 5.1, measuring and checking a new rudder stock bearing, a new rudder pintle bearing and an anti-jump gap;
and 5.2, welding and installing a temporary hole-opening sealing plate on the rudder blade.
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| CN202010474059.XA CN111661275B (en) | 2020-05-29 | 2020-05-29 | Rudder stock replacing process |
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| CN112498625B (en) * | 2020-10-30 | 2023-05-05 | 沪东中华造船(集团)有限公司 | Quick temporary maintenance method for ship suspension rudder bearing |
| CN112776958B (en) * | 2021-01-29 | 2022-04-08 | 广州文冲船舶修造有限公司 | Method for repairing dislocation of rudder stock and rudder blade of ship rudder |
| CN113772071B (en) * | 2021-08-16 | 2022-08-30 | 招商局重工(深圳)有限公司 | Large ship rudder stock assembly disassembling tool and disassembling method thereof |
| CN115158602B (en) * | 2022-08-22 | 2023-05-30 | 广船国际有限公司 | Rudder pin maintenance method for ship semi-suspension rudder |
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