CN113511312B - Method for mounting bow auxiliary pushing device of ship - Google Patents
Method for mounting bow auxiliary pushing device of ship Download PDFInfo
- Publication number
- CN113511312B CN113511312B CN202110445528.XA CN202110445528A CN113511312B CN 113511312 B CN113511312 B CN 113511312B CN 202110445528 A CN202110445528 A CN 202110445528A CN 113511312 B CN113511312 B CN 113511312B
- Authority
- CN
- China
- Prior art keywords
- sealing plate
- lifting
- opening
- cabin
- control rod
- 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
- 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
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/30—Moving or transporting modules or hull blocks to assembly sites, e.g. by rolling, lifting or floating
-
- 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
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/43—Welding, e.g. laser welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Ocean & Marine Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the technical field of ship equipment, and discloses an installation method of a ship bow auxiliary pushing device. After welding the middle sealing plate to the first opening, carrying out corresponding installation work or welding work: installing a gear box assembly at the lower end of a lifting rotary control rod, connecting a transmission shaft mechanism with a gear set, installing a propeller at the lower end of the gear box assembly, connecting the propeller with the gear set, installing a first guide rod and installing a lifting oil cylinder; the mounting method can standardize and rationalize the mounting of the bow auxiliary pushing device, ensure the mounting quality and ensure the smooth operation of the bow auxiliary pushing device.
Description
Technical Field
The invention relates to the technical field of ship equipment, in particular to an installation method of a ship bow auxiliary pushing device.
Background
The bow auxiliary pushing device is novel power equipment on the ship, can realize the steering of the ship at low navigational speed, and greatly improves the maneuvering performance of the ship; at present, bow is assisted and is pushed away device need be installed at the stage of carrying on the slipway, and the installation procedure is loaded down with trivial details, technological requirement is high, and need carry out strict monitoring to the whole journey of installation, and this not only consumes a large amount of manpower, material resources, and prolonged the manufacturing cycle of boats and ships to a certain extent, increased unnecessary time cost.
Disclosure of Invention
The purpose of the invention is: provides an installation method of a ship bow auxiliary pushing device.
In order to achieve the above object, the present invention provides an installation method of a ship bow auxiliary pushing device, which comprises the following steps:
s10, reserving a control cabin and a seawater cabin at the bottom of the ship in advance, wherein the control cabin is positioned above the seawater cabin;
s20, respectively forming a first opening and a second opening at the top and the bottom of the seawater cabin, communicating the seawater cabin with the control cabin through the first opening, and reinforcing the side walls of the first opening and the second opening;
s30, assembling the bow auxiliary pushing device: arranging a transmission shaft mechanism in a lifting rotary control rod, enabling a power input end of the transmission shaft mechanism to extend out of the upper end of the lifting rotary control rod and a power output end of the transmission shaft mechanism to extend out of the lower end of the lifting rotary control rod, installing a rotary motor on a lifting flange, enabling the upper end of the lifting rotary control rod to penetrate through the lifting flange and be connected with the power output end of the rotary motor, sleeving a middle sealing plate on the periphery of the lifting rotary control rod from bottom to top, installing a main motor on the lifting flange, and enabling the power output end of the main motor to be connected with the power input end of the transmission shaft mechanism;
s40, hoisting the assembled bow auxiliary pushing device, placing the bow auxiliary pushing device into the control cabin from top to bottom, enabling the rotary motor, the main motor and the lifting flange to be located in the control cabin, enabling the lifting rotary control rod to penetrate through the first opening, and enabling the middle sealing plate to be located above the first opening;
s50, aligning and welding the middle sealing plate at the first opening;
s60, connecting a gear box assembly to the lower end of a lifting rotary control rod, wherein the gear box assembly comprises a box body and a gear set arranged in the box body, the lifting rotary control rod can rotate relative to the box body, a guide groove is formed in the box body, and the power output end of a transmission shaft mechanism is connected with the power input end of the gear set;
s70, the propeller is mounted at the lower end of the box body, the power output end of the gear set is connected with the propeller, the rotary motor can drive the lifting rotary control rod to rotate to drive the propeller to rotate relative to the box body so as to adjust the position of the propeller, and the main motor drives the transmission shaft mechanism to operate to drive the gear set to operate so as to drive blades in the propeller to rotate;
s80, enabling the first guide rod to penetrate through the lifting flange, welding the lower end of the first guide rod with the middle sealing plate and welding the upper end of the first guide rod with the inner wall of the control cabin;
and S90, the lifting oil cylinder comprises a fixed cylinder body and a movable rod connected with the fixed cylinder body, the fixed cylinder body is used as a second guide rod, the lower end of the fixed cylinder body penetrates through a guide groove on the box body and is sleeved in a shaft sleeve, the upper end of the fixed cylinder body is correspondingly welded at the bottom of the middle sealing plate, the movable rod penetrates upwards through the middle sealing plate and is connected with the lifting flange, and the shaft sleeve is correspondingly welded at the bottom of the seawater cabin.
Preferably, the installation method of the ship bow auxiliary pushing device further comprises the following steps:
s501, marking lines are made on the middle sealing plate in advance, and the middle sealing plate is aligned and positioned at the first opening through the marking lines;
s502, welding a middle sealing plate at the first opening: spot welding is carried out on the middle sealing plate, a gap between the outer side wall of the middle sealing plate and the inner side wall of the first opening is controlled, and then welding is carried out on two sides of the middle sealing plate simultaneously, so that the middle sealing plate is prevented from being deformed;
s503, after welding, checking the surface flatness of the middle seal plate;
s504, rechecking the levelness of the middle sealing plate;
and S505, if the surface flatness and the levelness both meet the standard, the installation of the middle seal plate can be confirmed to be finished.
Preferably, the method further comprises the following steps:
s506, the deviation of the surface flatness of the middle sealing plate is smaller than or equal to 2mm, and the deviation of the surface flatness of the middle sealing plate is smaller than or equal to 3 mm.
Preferably, the method further comprises the following steps:
and S507, before the middle sealing plate is welded at the first opening, lifting or jacking the lifting and rotating control rod to ensure that no load is on the middle sealing plate.
Preferably, when welding the shaft sleeve to the bottom of the seawater tank, the following steps are performed:
s901, pre-drilling a positioning hole on a ship plate at the bottom of the seawater cabin, and aligning and positioning the shaft sleeve at the bottom of the seawater cabin according to the positioning hole.
Preferably, the process of welding the sleeve to the bottom of the sea chest comprises the steps of:
s902, when welding the shaft sleeve to the bottom of the seawater cabin, firstly measuring the position of the shaft sleeve at the bottom of the seawater cabin by using a dial indicator, and recording the initial reading of the dial indicator;
s903, taking a plurality of welding points with equal intervals on the periphery of the shaft sleeve, carrying out spot welding on the welding points, observing the number indicated by the dial indicator, and immediately carrying out spot welding on the shaft sleeve at a position symmetrical to the welding points if the number indicated by the dial indicator changes;
and S904, after welding is finished, checking the final indicating number on the dial indicator, comparing the final indicating number with the initial indicating number, and determining whether the position of the shaft sleeve is accurately welded.
Preferably, after welding the sleeve to the bottom of the sea chest, the following steps are carried out:
s905, measuring the parallelism of the second guide rod relative to the lifting rotary control rod: and respectively taking a measuring point at the upper part, the middle part and the lower part of the second guide rod, respectively measuring the horizontal distance between each measuring point and the lifting rotary control rod, and if the difference between the average value of the distances measured for three times and the standard distance between the second guide rod and the lifting rotary control rod is less than 0.3mm, determining that the second guide rod is parallel to the lifting rotary control rod.
Preferably, the method further comprises the following steps:
s906, when the bow auxiliary pushing device is assembled, a hydraulic oil tank is installed on the lifting flange and connected with the lifting oil cylinder, after the second guide rod is confirmed to be parallel to the lifting rotary control rod, oil is supplied to the lifting oil cylinder through the hydraulic oil tank, the lifting oil cylinder drives the lifting flange to lift, the lifting rotary control rod is driven to lift, and whether the propeller can smoothly enter and exit the second opening or not is checked.
Preferably, after the shaft sleeve is welded, the following steps are required:
and S907, installing a bottom sealing plate below the propeller, lowering the bottom sealing plate to a position 10mm away from the highest point of the propeller, scribing the bottom sealing plate according to the outline of the second opening, and cutting the bottom sealing plate through the scribed line to enable the bottom sealing plate to be matched with the second opening.
Preferably, the installation method of the ship bow auxiliary pushing device further comprises the following steps:
s100, before the locking mechanism is installed inside the control cabin, a strong supporting structure needs to be arranged in the control cabin.
Compared with the prior art, the installation method of the bow auxiliary pushing device of the ship has the following beneficial effects that:
firstly, assembling the transmission shaft mechanism, the lifting rotary control rod, the rotary motor, the lifting flange, the main motor and the middle sealing plate, and lifting and installing after the assembly is finished. After welding the middle sealing plate at the first opening, correspondingly installing work or welding work is carried out: installing a gear box component at the lower end of a lifting rotary control rod, connecting a power output end of a transmission shaft mechanism with a power input end of a gear set, installing a propeller at the lower end of the gear box component, connecting the propeller with the power output end of the gear set, and enabling a main motor to operate, so that the main motor drives the transmission shaft mechanism to drive the gear set to operate and drives the propeller to operate; the first guide rod penetrates through the lifting flange, and the upper end and the lower end of the first guide rod are respectively welded on the inner wall of the control cabin and the top of the middle sealing plate; pass the guide way on the box of gear box subassembly with the fixed cylinder body of lift cylinder, the lower extreme of second guide arm promptly, and telescope in the axle sleeve, correspond the upper end of second guide arm and weld in the bottom of middle part shrouding, make lift cylinder's power take off end promptly the movable rod upwards stretch out the middle part shrouding and with lifting flange joint, weld the axle sleeve with the bottom in sea water cabin, afterwards, the lift flange lift of optional lift cylinder drive, drive rotary motor, the main motor, lift rotary control pole (transmission shaft mechanism), gear box subassembly and screw go up and down, make the screw stretch out outside the opening or accomodate in the sea water cabin, and select to use rotary motor drive lift rotary control pole to rotate, the position of adjustment screw. The mounting method can standardize and rationalize the mounting of the bow auxiliary pushing device, ensure the mounting quality and ensure the smooth operation of the bow auxiliary pushing device.
Drawings
Fig. 1 is a schematic view of a propeller of a ship bow auxiliary pushing device of an embodiment of the invention extending out of a seawater cabin;
fig. 2 is a schematic view of a propeller of the bow auxiliary pushing device of the ship according to the embodiment of the invention being accommodated in a sea chest;
FIG. 3 is a schematic view of a stationary state of the bow auxiliary pushing device according to the embodiment of the invention;
FIG. 4 is a schematic view of the operational state of the bow auxiliary pushing device according to the embodiment of the invention;
FIG. 5 is a first flowchart of a method for installing a bow assist device according to an embodiment of the present invention;
FIG. 6 is a schematic view of a first opening of an embodiment of the present invention;
FIG. 7 is a schematic view of a central closure plate in accordance with an embodiment of the present invention;
FIG. 8 is a second flowchart of a method for installing a bow assist device according to an embodiment of the present invention;
FIG. 9 is a flow chart of a third method of installing the bow assist device according to the embodiment of the present invention;
FIG. 10 is a schematic view of a second opening of an embodiment of the present invention;
FIG. 11 is a schematic view of the mounting of a bushing in accordance with an embodiment of the invention;
FIG. 12 is a fourth flowchart of a method for mounting a bow assist device in accordance with an embodiment of the present invention;
FIG. 13 is a flow chart of a fifth method of installing a bow assist device in accordance with an embodiment of the present invention;
FIG. 14 is a schematic view of a second guide bar of an embodiment of the present invention;
FIG. 15 is a sixth flowchart of a method of installing a bow assist device in accordance with an embodiment of the present invention;
FIG. 16 is a sixth flowchart of a method of installing a bow assist device in accordance with an embodiment of the present invention;
FIG. 17 is a schematic view of a stent according to an embodiment of the present invention;
FIG. 18 is a schematic view of a propeller of an embodiment of the present invention;
FIG. 19 is a seventh flow chart of a method of installing the bow assist device in accordance with an embodiment of the present invention;
FIG. 20 is a schematic view of a strong support structure of an embodiment of the present invention;
FIG. 21 is an eighth flowchart of a method of installing a bow assist device in accordance with an embodiment of the present invention;
in the figure, 10, a control cabin; 20. a sea water tank; 201. a first opening; 202. a second opening; 30. a bow auxiliary pushing device; 301. a lifting rotary control rod; 302. a rotary motor; 303. a lifting flange; 304. a middle seal plate; 305. a gearbox assembly; 306. a propeller; 307. a first guide bar; 308. a second guide bar; 309. a movable rod; 310. a shaft sleeve; 311. a dial indicator; 312. A hydraulic oil tank; 313. a bottom closing plate; 314. a locking mechanism; 315. a first mounting hole; 316. A second mounting hole; 317. a flange mounting hole; 318. adjusting the bolt; 319. a support; 320. A damping guide plate; 321. a flow guide pipe; 322. a support plate; 323. a strong support structure.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
As shown in fig. 1 to 5, a method for installing a ship bow auxiliary pushing device according to a preferred embodiment of the present invention includes the following steps:
s10, reserving a control cabin 10 and a seawater cabin 20 at the bottom of the ship in advance, wherein the control cabin 10 is positioned above the seawater cabin 20;
s20, respectively forming a first opening 201 and a second opening 202 at the top and the bottom of the seawater cabin 20, communicating the seawater cabin 20 with the control cabin 10 through the first opening 201, and reinforcing the side walls of the first opening 201 and the second opening 202;
s30, assembling the bow auxiliary pushing device 30: arranging a transmission shaft mechanism (not shown in the drawing) in a lifting rotary control rod 301, enabling a power input end of the transmission shaft mechanism to extend out of the upper end of the lifting rotary control rod 301, enabling a power output end of the transmission shaft mechanism to extend out of the lower end of the lifting rotary control rod 301, installing a rotary motor 302 on a lifting flange 303, enabling the upper end of the lifting rotary control rod 301 to penetrate through the lifting flange 303 and be connected with the power output end of the rotary motor 302, and sleeving a middle sealing plate 304 on the periphery of the lifting rotary control rod 301 from bottom to top;
s40, hoisting the assembled bow auxiliary pushing device 30, and placing the bow auxiliary pushing device 30 into the control cabin 10 from top to bottom, so that the rotary motor 302, the main motor and the lifting flange 303 are positioned in the control cabin 10, the lifting rotary control rod 301 is arranged in the first opening 201 in a penetrating manner, and the middle sealing plate 304 is positioned above the first opening 201;
s50, welding the middle closing plate 304 at the first opening 201 in an aligned manner;
s60, connecting the gear box assembly 305 to the lower end of the lifting rotary control rod 301, wherein the gear box assembly 305 comprises a box body and a gear set arranged in the box body, the lifting rotary control rod 301 can rotate relative to the box body, a guide groove is formed in the box body, and the power output end of the transmission shaft mechanism is connected with the power input end of the gear set;
s70, the propeller 306 is mounted at the lower end of the box body of the gear box assembly 305, the power output end of the gear set is connected with the propeller 306, the rotary motor 302 can drive the lifting rotary control rod 301 to rotate to drive the propeller 306 to rotate relative to the box body so as to adjust the position of the propeller 306, and the main motor drives the transmission shaft mechanism to operate to drive the gear set to operate so as to drive blades in the propeller 306 to rotate;
s80, the first guide rod 307 penetrates through the lifting flange 303, the lower end of the first guide rod is welded to the first mounting hole 315 on the middle seal plate 304, and the upper end of the first guide rod is welded to the inner wall of the control cabin 10;
s90, the lift cylinder includes a fixed cylinder and a movable rod 309 connected to the fixed cylinder, the fixed cylinder is used as a second guide rod, the lower end of the second guide rod 308 passes through the guide slot on the box and is sleeved in a shaft sleeve 310, the shaft sleeve 310 can be temporarily fixed at the lower end of the second guide rod 308 by using a fixing screw, the upper end of the second guide rod 308 is correspondingly welded to the second mounting hole 316 of the middle sealing plate 304, and the power output end of the lift cylinder, i.e. the movable rod 309, passes upward through the second mounting hole 316 and is connected to the lift flange 303, and then the shaft sleeve 310 is correspondingly welded to the bottom of the sea water tank 20.
Based on the installation method, the transmission shaft mechanism, the lifting rotary control rod 301, the rotary motor 302, the lifting flange 303, the main motor and the middle seal plate 304 are assembled, and lifted and installed after the assembly is finished. After welding the middle closure plate 304 to the first opening 201, the corresponding mounting or welding work is performed: a gear box component 305 is arranged at the lower end of the lifting rotary control rod 301, the power output end of the transmission shaft mechanism is connected with the power input end of the gear set, a propeller 306 is arranged at the lower end of the box body and is connected with the power output end of the gear set, a main motor is operated, the main motor drives the transmission shaft mechanism to drive the gear set to operate and drives the propeller 306 to operate, and the position of the propeller 306 is adjusted; the first guide rod 307 passes through the lifting flange 303, and the upper end and the lower end of the first guide rod are respectively welded to the inner wall of the control cabin 10 and the top of the middle closing plate 304; the lower end of the fixed cylinder, i.e. the second guide rod 308, passes through the guide slot on the box body of the gear box assembly 305 and is sleeved in the shaft sleeve 310, the upper end of the second guide rod 308 is correspondingly welded at the bottom of the middle closing plate 304, so that the power output end of the lifting cylinder, i.e. the movable rod, extends upwards out of the second mounting hole 316 and is connected with the lifting flange 303, the shaft sleeve 310 is welded with the bottom of the seawater cabin 20, and then the lifting cylinder can be selected to drive the lifting flange 303 to lift, so as to drive the rotary motor 302, the main motor, the lifting rotary control rod 301 (transmission shaft mechanism), the gear box assembly 305 and the propeller 306 to lift, so that the propeller 306 can extend out of the second opening 202 or be accommodated in the seawater cabin 20, and the rotary motor 302 is selected to drive the lifting rotary control rod 301 to rotate, thereby adjusting the position of the propeller 306. The mounting method can standardize and rationalize the mounting of the bow auxiliary pushing device 30, can ensure the mounting quality of the bow auxiliary pushing device, and can ensure the smooth operation of the bow auxiliary pushing device 30.
Preferably, as shown in fig. 6 to 9, the installation method of the ship bow auxiliary pushing device of the embodiment further comprises the following steps:
s501, marking lines are made on the middle sealing plate 304 in advance, and the middle sealing plate 304 is aligned and positioned at the first opening 201 through the marking lines;
s502, welding the middle closing plate 304 at the first opening 201: spot welding is firstly carried out on the middle sealing plate 304, the gap between the outer side wall of the middle sealing plate 304 and the inner side wall of the first opening 201 is controlled, and if the gap is not uniform, the gap can be adjusted by adopting repair welding; welding is performed on two sides of the middle seal plate 304 at the same time, so that the middle seal plate 304 is prevented from deforming; in this embodiment, the welding of the middle closing plate 304 at the first opening 201 must be performed in a full penetration manner, so that a scaffold is required to be arranged in the sea water tank 20 to facilitate the welding operation of welding personnel, and during welding, the components such as the rotary motor 302 and the main motor can be protected by using a flame retardant material;
s503, after welding, checking the surface flatness of the middle seal plate 304;
s504, rechecking the levelness of the middle sealing plate 304;
and S505, if the surface flatness and the levelness both meet the standard, the installation of the middle seal plate 304 can be confirmed to be completed.
S506, the deviation of the surface flatness of the middle seal plate 304 is less than or equal to 2 mm; the deviation of the levelness of the middle sealing plate 304 is less than or equal to 3mm, and a dial indicator can be used to measure the levelness of the four corners of the middle sealing plate 304, and the levelness of the middle sealing plate 304 can be determined by comparing the levelness of the four corners of the middle sealing plate 304.
S507, before the middle sealing plate 304 is welded to the first opening 201, the lifting/lowering/rotating control rod 301 is lifted or jacked up to make the middle sealing plate 304 have no load, so as to prevent the middle sealing plate 304 from deforming, and the lifting/rotating control rod 301 may be lifted up by a lifting hoist or the lifting/rotating control rod 301 may be jacked up by a jack.
As shown in fig. 10-13, when welding the shaft sleeve 310 to the bottom of the sea chest 20, the following steps are required:
s901, pre-drilling a positioning hole on a ship plate at the bottom of the seawater cabin 20, marking the position of the shaft sleeve 310 on the ship plate, drilling the positioning hole at the position, and aligning and positioning the shaft sleeve 310 at the bottom of the seawater cabin 20 according to the positioning hole, wherein the positioning hole allows a tolerance of +1 mm; in addition, the present embodiment may further include an adjusting bolt 318 disposed at the bottom of the sea chest 20 and surrounding the outer circumference of the shaft sleeve 310 for adjusting the position of the shaft sleeve 310.
The sleeve 310 may then be welded to the bottom of the sea chest 20, the process comprising the steps of:
s902, when welding the shaft sleeve 310 to the bottom of the seawater cabin 20, firstly measuring the position of the shaft sleeve 310 at the bottom of the seawater cabin 20 by using the dial indicator 311, and recording an initial reading of the dial indicator 311 to confirm the initial position of the shaft sleeve 310;
s903, taking a plurality of welding points with equal intervals on the periphery of the shaft sleeve 310, if four welding points are taken on the periphery of the shaft sleeve 310, wherein the included angle between each two adjacent welding points and the connecting line of the centers of the welding surfaces of the shaft sleeve 310 is 90 degrees, carrying out spot welding on the welding points, and simultaneously observing the readings of the dial indicator 311, if the readings on the dial indicator 311 are changed, immediately carrying out spot welding on the welding surfaces of the shaft sleeve 310 and the positions symmetrical to the welding points so as to prevent the position of the shaft sleeve 310 from being changed;
s904, after welding is finished, checking the final readings on the dial indicator 311, comparing the final readings with the initial readings, and determining whether the position of the shaft sleeve 310 is accurately welded; in this embodiment, if the welding position of the bushing 310 is inaccurate, the parallelism of the second guide rod 308 with respect to the lifting/lowering/swiveling control rod 301 is affected, so that great care is required for welding and the indication of the dial indicator is observed with care.
Next, as shown in fig. 14 to 15, the following steps are also required:
s905, measuring the parallelism of the second guide rod 308 with respect to the lifting/lowering/swiveling control rod 301: and measuring horizontal distances between each measuring point and the lifting and rotating control rod 301 by taking one measuring point from the upper part, the middle part and the lower part of the second guide rod 308 respectively, and if the difference between the average value of the distances measured three times and the standard distance between the second guide rod 308 and the lifting and rotating control rod 301 is less than 0.3mm, determining that the second guide rod 308 is parallel to the lifting and rotating control rod 301.
As shown in table 1, in this embodiment, two lift cylinders are provided, that is, two second guide rods are provided, and six measurement points (three measurement points for each second guide rod) need to be taken for measurement:
| location of measuring point | Distance (second guide bar 1) | Distance (second guide bar 2) |
| Upper part | a1 | a2 |
| Middle part | b1 | b2 |
| Lower part | c1 | c2 |
If the value of [ (a1+ b1+ c 1)/3-standard distance ] is less than or equal to 0.3mm and the value of [ (a2+ b2+ c 2)/3-standard distance ] is less than or equal to 0.3mm, the second guide rod 1 and the second guide rod 2 are considered to be parallel to the lifting and rotating control rod.
Then, as shown in fig. 16, the following steps are performed:
s906, when the bow auxiliary pushing device 30 is assembled, the hydraulic oil tank 312 is installed on the lifting flange 303, the hydraulic oil tank 312 is connected with the lifting oil cylinder, and the load sensing valve on the hydraulic oil tank 312 is kept closed, so that the pressure of the lifting oil cylinder does not exceed 35bar, the damage of the lifting oil cylinder in the installation process is avoided, and after the second guide rod is confirmed to be parallel to the lifting rotary control rod 301, oil is supplied to the lifting oil cylinder through the hydraulic oil tank 312, the lifting oil cylinder can drive the lifting flange 303 to lift, the lifting rotary control rod 301 and the propeller 306 are driven to lift, and whether the propeller 306 can smoothly enter and exit the second opening 202 is detected.
As shown in fig. 17 to 19, in this embodiment, after the shaft sleeve 310 is welded, the following steps are further performed:
s907, arranging brackets 319 in the sea water tank 20 and on both sides of the second opening 202, mounting the damping guide plate 320 on the brackets 319, and controlling a gap between the damping guide plate 320 and the draft tube 321 of the propeller 306: when the middle part of the draft tube 321 enters the cabin, the minimum distance between the damping guide plate 320 and the draft tube 321 is 2-3mm, when the propeller 306 is completely accommodated in the seawater cabin 20, the minimum distance between the damping guide plate 320 and the draft tube 321 is 1-2mm, then the damping guide plate 320 is disassembled, a backing plate is welded on the bracket 319, and the damping guide plate 320 is fixed on the backing plate.
S908, a bottom closing plate 313 is arranged below the flow guide pipe 321, the support plate 322 is welded between the flow guide pipe 321 and the bottom closing plate 313 to strengthen connection, V-shaped grooves are adopted for butt welding between the support plate 322 on the outer side and the bottom closing plate 313, the support plate 322 is welded to the inner side as far as possible, grooves are used for welding at a position where the middle part of the inner side cannot be contacted, and a single-side groove is adopted for butt welding between the support plate 322 on the inner side and the bottom closing plate 313; after welding, the bottom sealing plate 313 is lowered to a position 10mm away from the highest point of the bottom sealing plate 313, the bottom sealing plate 313 is scribed according to the outline of the second opening 202, the bottom sealing plate 313 is cut by the scribed line, the bottom sealing plate 313 can be matched with the second opening 202, and when the propeller 306 is stored back into the seawater cabin 20, the bottom sealing plate 313 can seal the second opening 202 to prevent ocean currents from impacting the propeller 306 and impacting the seawater cabin 20.
As shown in fig. 20 to 21, the installation method of the vessel bow auxiliary pushing device of the present embodiment further includes the following steps:
s100, the locking mechanism 314 is installed inside the control cabin 10 and used for locking the lifting flange 303, before installation, a strong supporting structure 323 needs to be arranged in the control cabin 10 to prevent the installation of the locking mechanism 314 from deflecting, and the deflection of the locking mechanism 314 allowed by the embodiment is less than or equal to 2 mm; the locking mechanism 314 of the present embodiment can adopt a structure common in the prior art, and the detailed principle thereof is not described herein; before the lifting cylinder drives the lifting flange 303 to descend, whether the locking mechanism 314 abuts against the lifting flange 303 or not, that is, whether the locking mechanism 314 can lock the lifting flange 303 or not, needs to be checked.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The mounting method of the ship bow auxiliary pushing device is characterized by comprising the following steps:
reserving a control cabin and a seawater cabin at the bottom of the ship in advance, wherein the control cabin is positioned above the seawater cabin;
respectively arranging a first opening and a second opening at the top and the bottom of the seawater cabin, communicating the seawater cabin with the control cabin through the first opening, and reinforcing the side walls of the first opening and the second opening;
assembling the bow auxiliary pushing device: arranging a transmission shaft mechanism in a lifting rotary control rod, enabling a power input end of the transmission shaft mechanism to extend out of the upper end of the lifting rotary control rod and a power output end of the transmission shaft mechanism to extend out of the lower end of the lifting rotary control rod, installing a rotary motor on a lifting flange, enabling the upper end of the lifting rotary control rod to penetrate through the lifting flange and be connected with the power output end of the rotary motor, sleeving a middle sealing plate on the periphery of the lifting rotary control rod from bottom to top, installing a main motor on the lifting flange, and enabling the power output end of the main motor to be connected with the power input end of the transmission shaft mechanism;
hoisting the assembled bow auxiliary pushing device, placing the bow auxiliary pushing device into the control cabin from top to bottom, enabling the rotary motor, the main motor and the lifting flange to be located in the control cabin, enabling the lifting rotary control rod to penetrate through the first opening, and enabling the middle sealing plate to be located above the first opening;
welding a middle sealing plate at the first opening in an aligning manner;
connecting a gear box assembly to the lower end of a lifting rotary control rod, wherein the gear box assembly comprises a box body and a gear set arranged in the box body, the lifting rotary control rod can rotate relative to the box body, a guide groove is formed in the box body, and the power output end of a transmission shaft mechanism is connected with the power input end of the gear set;
the propeller is arranged at the lower end of the box body, the power output end of the gear set is connected with the propeller, the rotary motor can drive the lifting rotary control rod to rotate to drive the propeller to rotate relative to the box body so as to adjust the position of the propeller, and the main motor drives the transmission shaft mechanism to operate to drive the gear set to operate so as to drive blades in the propeller to rotate;
a first guide rod penetrates through the lifting flange, the lower end of the first guide rod is welded with the middle sealing plate, and the upper end of the first guide rod is welded with the inner wall of the control cabin;
the lifting oil cylinder comprises a fixed cylinder body and a movable rod connected with the fixed cylinder body, the fixed cylinder body is used as a second guide rod, the lower end of the fixed cylinder body penetrates through a guide groove in the box body and is sleeved in a shaft sleeve, the upper end of the fixed cylinder body is correspondingly welded to the bottom of the middle sealing plate, the movable rod penetrates upwards through the middle sealing plate and is connected with the lifting flange, and the shaft sleeve is correspondingly welded to the bottom of the seawater cabin.
2. The method for installing a marine bow thrustor according to claim 1, further comprising the steps of:
marking lines are made on the middle sealing plate in advance, and the middle sealing plate is aligned and positioned at the first opening through the marking lines;
weld the middle part shrouding in first opening part: spot welding is carried out on the middle sealing plate, a gap between the outer side wall of the middle sealing plate and the inner side wall of the first opening is controlled, and then welding is carried out on two sides of the middle sealing plate simultaneously, so that the middle sealing plate is prevented from being deformed;
after welding, checking the surface flatness of the middle sealing plate;
rechecking the levelness of the middle sealing plate;
and if the surface flatness and the levelness both meet the standard, the installation of the middle sealing plate can be confirmed to be finished.
3. The method for installing the ship bow auxiliary pushing device according to claim 2, further comprising the steps of:
the deviation of the surface smoothness of middle portion shrouding is less than or equal to 2mm, and the deviation of the levelness of middle portion shrouding is less than or equal to 3 mm.
4. The method for installing a ship bow auxiliary pushing device according to claim 2, further comprising the steps of:
before the middle sealing plate is welded at the first opening, the lifting rotary control rod is lifted or jacked up, so that no load is arranged on the middle sealing plate.
5. The method for installing the bow auxiliary thrusting device according to claim 1, wherein the following steps are performed when welding the sleeve to the bottom of the sea chest:
and pre-drilling a positioning hole on a ship plate at the bottom of the seawater cabin, and aligning and positioning the shaft sleeve at the bottom of the seawater cabin according to the positioning hole.
6. The method for installing a marine bow thrustor according to claim 1, further comprising the steps of:
when the shaft sleeve is welded at the bottom of the seawater cabin, firstly, a dial indicator is used for measuring the position of the shaft sleeve at the bottom of the seawater cabin, and the initial reading of the dial indicator is recorded;
taking a plurality of welding points with equal intervals on the periphery of the shaft sleeve, carrying out spot welding on the welding points, observing the reading of the dial indicator, and immediately carrying out spot welding on the shaft sleeve at a position symmetrical to the welding points if the reading on the dial indicator changes;
and after welding is finished, checking the final readings on the dial indicator, comparing the final readings with the initial readings, and determining whether the position of the shaft sleeve is accurately welded.
7. The method for installing the bow auxiliary pushing device of the ship according to claim 1, wherein after welding the shaft sleeve to the bottom of the sea chest, the following steps are further performed:
measuring the parallelism of the second guide rod relative to the lifting rotary control rod: and respectively taking a measuring point at the upper part, the middle part and the lower part of the second guide rod, respectively measuring the horizontal distance between each measuring point and the lifting rotary control rod, and if the difference between the average value of the distances measured for three times and the standard distance between the second guide rod and the lifting rotary control rod is less than 0.3mm, determining that the second guide rod is parallel to the lifting rotary control rod.
8. The method of installing a marine vessel bow thrustor according to claim 7, further comprising the steps of:
when the bow auxiliary pushing device is assembled, a hydraulic oil tank is installed on the lifting flange and connected with the lifting oil cylinder, after the second guide rod is confirmed to be parallel to the lifting rotary control rod, oil is supplied to the lifting oil cylinder through the hydraulic oil tank, the lifting oil cylinder drives the lifting flange to lift, the lifting rotary control rod is driven to lift, and whether the propeller can smoothly pass through the second opening or not is checked.
9. The method for installing the ship bow auxiliary pushing device according to claim 1, wherein after the shaft sleeve is welded, the following steps are required:
and a bottom sealing plate is arranged below the propeller, the bottom sealing plate is lowered to a position 10mm away from the highest point of the bottom sealing plate, the bottom sealing plate is scribed according to the outline of the second opening, and the bottom sealing plate is cut through the scribed line, so that the bottom sealing plate can be matched with the second opening.
10. The method for installing a marine bow thrustor according to claim 1, further comprising the steps of:
before the locking mechanism is installed inside the control cabin, a strong supporting structure needs to be arranged in the control cabin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110445528.XA CN113511312B (en) | 2021-04-23 | 2021-04-23 | Method for mounting bow auxiliary pushing device of ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110445528.XA CN113511312B (en) | 2021-04-23 | 2021-04-23 | Method for mounting bow auxiliary pushing device of ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113511312A CN113511312A (en) | 2021-10-19 |
| CN113511312B true CN113511312B (en) | 2022-05-10 |
Family
ID=78061910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110445528.XA Active CN113511312B (en) | 2021-04-23 | 2021-04-23 | Method for mounting bow auxiliary pushing device of ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113511312B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT1177130E (en) * | 1999-05-11 | 2003-12-31 | Siemens Ag | HELICE ELECTRIC LEME WITH A REDUCED INSTALLATION HEIGHT |
| US8708760B2 (en) * | 2010-02-11 | 2014-04-29 | Davis Engineering, Llc | Trimmable pod drive |
| JP5568128B2 (en) * | 2010-04-16 | 2014-08-06 | ワルトシラ フィンランド オサケユキチュア | Propeller mounting method |
| JP5997843B2 (en) * | 2012-10-16 | 2016-09-28 | ワルトシラ ネザーランズ ベー フェー | Method for operating unit in marine vessel and apparatus for marine vessel |
| KR101789009B1 (en) * | 2017-05-04 | 2017-11-15 | 조영효 | Ships with side thruster capable of ascending and descending at the rear of the ship |
| CN107512380B (en) * | 2017-08-22 | 2019-07-16 | 大连理工大学 | A kind of all-around propeller, ship and floating platform |
| CN109018283B (en) * | 2018-06-13 | 2020-03-06 | 桂平市大众船舶修造厂 | Ship propeller |
| CN211543845U (en) * | 2019-12-26 | 2020-09-22 | 珠海市海斯比船舶工程有限公司 | Boat advancing device and boat |
-
2021
- 2021-04-23 CN CN202110445528.XA patent/CN113511312B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113511312A (en) | 2021-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110525576B (en) | Ship deck base structure and ship deck base structure installation method | |
| CN101323351B (en) | Shipping rudder system lighting and mounting method | |
| CN101417703B (en) | Manufacturing and mounting method of full-rotating rudder paddle base | |
| US9988131B2 (en) | Canister type thruster and installation method thereof | |
| CN201102619Y (en) | Fixture equipment for base installation | |
| CN110466689B (en) | Method for controlling mounting precision of stern door hinge | |
| CN107130600A (en) | One kind migrates formula automatic deviation correction single pile pile gripper construction mechanism and construction method | |
| CN110606163B (en) | Rudder system mounting process | |
| CN111268055A (en) | Straight blade propeller mounting method and mounting base | |
| CN113511312B (en) | Method for mounting bow auxiliary pushing device of ship | |
| CN104890811A (en) | Installation method of ship bow telescopic paddle based on omega sealing principle | |
| CN113978649B (en) | Method for installing openable side pushing cover on ship | |
| CN111591409B (en) | Process method for improving forward reverse propelling precision of construction process | |
| JP4624290B2 (en) | How to install the prime mover on the hull | |
| CN111571160A (en) | Centering method of side pushing device | |
| CN114655384A (en) | Method for mounting telescopic azimuth thruster of ship | |
| CN114084310B (en) | Installation method of bearing gangplank | |
| CN111015145B (en) | Anchor winch installation tool and method | |
| Avgouleas et al. | Practical Aspects of Propulsion Shaft Alignment | |
| WO2014013724A1 (en) | In-ship removal-type thruster device | |
| CN113086126B (en) | Positioning method for hatch coaming of container ship and container ship | |
| CN118701250A (en) | Ship assembling method | |
| CN117326023A (en) | Rudder cylinder installation method | |
| CN114875875B (en) | Reconstruction and installation method of pile fixing device of self-elevating platform | |
| CN115283708A (en) | Method for shaft system centering boring after hoisting of marine main engine |
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 | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20211019 Assignee: GUANGZHOU WENCHUAN HEAVY INDUSTRY Co.,Ltd. Assignor: CSSC HUANGPU WENCHONG SHIPBUILDING Co.,Ltd. Contract record no.: X2023980037443 Denomination of invention: Installation method of ship bow auxiliary propulsion device Granted publication date: 20220510 License type: Common License Record date: 20230704 |