CN117092098A - Underwater inspection system for water lubrication shafting coating - Google Patents
Underwater inspection system for water lubrication shafting coating Download PDFInfo
- Publication number
- CN117092098A CN117092098A CN202310930190.6A CN202310930190A CN117092098A CN 117092098 A CN117092098 A CN 117092098A CN 202310930190 A CN202310930190 A CN 202310930190A CN 117092098 A CN117092098 A CN 117092098A
- Authority
- CN
- China
- Prior art keywords
- shafting
- inspection system
- coating
- endoscope
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000000576 coating method Methods 0.000 title claims abstract description 41
- 239000011248 coating agent Substances 0.000 title claims abstract description 36
- 238000007689 inspection Methods 0.000 title claims abstract description 34
- 238000005461 lubrication Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 238000005266 casting Methods 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000003032 molecular docking Methods 0.000 description 6
- 239000013535 sea water Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
- B63H23/326—Water lubricated bearings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention relates to an underwater inspection system for a water lubrication shafting coating, which relates to the field of ships and ocean engineering. The underwater inspection system for the water lubrication shafting coating comprises an L-shaped endoscope, wherein a lens is upward, the condition of the upper shafting coating can be effectively observed, and the limit is provided, so that the endoscope is prevented from being pulled out of a watertight stuffing box to cause water leakage.
Description
Technical Field
The invention relates to the field of ship and ocean engineering, in particular to an underwater inspection system for a water lubrication shafting coating.
Background
With the continuous enhancement of environmental awareness, more and more environmental friendly products and designs are applied to human production and life. The field of ship design and construction also scrapes environmental protection storm, and green and pollution-free design and products gradually become mainstream. The stern shaft water lubrication system is designed to be zero in pollution, meets all pollution regulations including MARPO/VGP/EPA/POLAR and the like, and is more widely welcomed by shipmen.
The technology of the stern shaft water lubrication of ships is continuously promoted and developed by all large-class agencies, and related specifications for prolonging the shaft pulling test period aiming at the stern shaft water lubrication system are continuously introduced in recent years, so that more and more shipmen and designers pay attention to and begin to select the stern shaft water lubrication system. The standard requirements of all class agencies for prolonging the shaft drawing inspection period are approximately the same, and mainly comprise bearing clearance, temperature on-line monitoring, water treatment device configuration, water quality detection measures, seawater-resistant coating of stern shaft coverage and the like.
The time for pulling out the stern shaft of the ship meeting the related requirements is prolonged from 5 years to 15 years, and the docking time, maintenance work and cost of the ship are greatly reduced.
However, in the current specification requirements, the bearing clearance, the temperature on-line monitoring, the water treatment device and the detection do not need to be docked, and the normal operation of the ship is not affected. Only one seawater-resistant coating of the stern shaft is adopted, and a class agency needs to check periodically to ensure the integrity of the coating of the stern shaft and avoid corrosion of a shafting itself in consideration of abrasion possibly occurring in subsequent operation. The inspection is done visually or endoscopically in the dock through a viewing port in the stern tube. The process of pulling out and installing the shaft is avoided, but the docking itself does not increase maintenance work and cost, the use efficiency of the ship is reduced, and the whole shaft system is difficult to cover by a limited observation hole in actual use, so that the inspection work of the coating is difficult.
Against this background, it is an initial aim of the present invention to find a more economical, efficient and less influencing of ship operation coating detection method.
Disclosure of Invention
The invention aims to provide an underwater inspection system for a water lubrication shafting coating, which solves the problems in the background technology.
In order to achieve the above purpose, the technical scheme of the invention provides an underwater inspection system for a water lubrication shafting coating, which is sleeved on a steel casting on the outer side of a stern shaft, a stern tube penetrating through the steel casting, an endoscope which is arranged on the inner side of the stern tube and used for observing the shafting coating, and a cable penetrating through the steel casting and connected with the endoscope.
Preferably, a U-shaped guide rail with an opening facing the stern shaft is arranged on the inner side of the stern tube, and the endoscope is arranged in the opening of the U-shaped guide rail.
Preferably, the endoscope is an L-shaped endoscope.
Preferably, the bottom of the U-shaped guide rail is welded with a tail pipe, and the U-shaped guide rail is welded with the steel casting front and back.
Preferably, the front watertight stuffing box and the rear watertight stuffing box for sealing are respectively arranged at the front and the rear of the steel casting.
Preferably, a water lubrication bearing is arranged between the stern shaft and the steel casting.
Preferably, a stern shaft sleeve is arranged between the stern shaft and the water lubrication bearing.
Preferably, the steel casting is provided with a flange seat and a flange cap.
Preferably, the cable is an endoscope armoured cable.
In summary, the invention has the following beneficial technical effects:
1) The underwater inspection system for the water lubrication shafting coating comprises an L-shaped endoscope, wherein a lens is upward, the condition of the upper shafting coating can be effectively observed, and the limit is provided, so that the endoscope is prevented from being pulled out of a watertight stuffing box to cause water leakage.
2) According to the underwater inspection system for the water lubrication shafting coating, the L-shaped endoscope adopts the armored cable, so that the cable is effectively protected, and meanwhile, the smooth operation of the endoscope is ensured.
3) According to the underwater inspection system for the water lubrication shafting coating, the U-shaped guide rail is upward in opening, so that the axial movement and the observation direction of an endoscope are effectively controlled, the clamping and the damage of the endoscope are avoided, and the inspection range of the underwater inspection system is ensured to cover the whole stern shaft coating area.
4) According to the underwater inspection system for the water lubrication shafting coating, the two watertight stuffing boxes are arranged inside and outside the front steel casting, so that the axial free movement of an endoscope cable is ensured, double sealing is provided, seawater is prevented from entering the cabin, the inspection of the coating of a ship without docking is realized, the related cost caused by docking and the influence on the operation of the ship are avoided, and the business efficiency of the ship is improved.
5) The invention relates to an underwater inspection system for a water lubrication shafting coating, which is characterized in that a flange cap is arranged in a cabin. When the underwater inspection system fails, the cable can be cut off immediately under the condition that the cable stuffing box fails and leaks water, and the flange cap is used for sealing the opening to avoid water inflow in the cabin, so that the safety of the ship is ensured.
Drawings
FIG. 1 is a schematic diagram of an underwater inspection system for a water lubricated shafting coating according to the present invention.
Fig. 2 is a schematic diagram of a part of a U-shaped guide rail and an endoscope of the underwater inspection system for a water-lubricated shafting coating according to the present invention.
Reference numerals: 1. sealing the front of the stern tube; 2. an endoscope armoured cable; 3. a flange cap; 4. front watertight stuffing box; 5. front casting steel; 6. a rear watertight stuffing box; 7. a stern tube; 8. a U-shaped guide rail; 9. a stern shaft; 10. an L-shaped endoscope; 11. a stern shaft sleeve; 12. and (5) lubricating the bearing by water.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, there is shown a water lubricated shafting coating underwater inspection system version of a preferred embodiment, comprising a stern tube front seal 1, an endoscope armoured cable 2, a flange cap 3, a front watertight stuffing box 4, a front cast steel 5, a rear watertight stuffing box 6, a stern tube 7, a U-shaped guide rail 8, a stern shaft 9, an L-shaped endoscope 10, a stern shaft sleeve 11, a water lubricated bearing 12, etc.
The steel castings (front steel casting 5 and rear steel casting) are sleeved on the periphery of the stern shaft 9, a water lubrication bearing 12 is arranged between the steel casting and the stern shaft 9, and a stern shaft sleeve 11 is arranged at the joint of the stern shaft 9 and the water lubrication bearing 12; the stern shaft 9 is provided with a stern tube front seal 1 at one side of the front steel casting 5.
As a preferred embodiment, the system selects an L-shaped endoscope 10 with an upward lens to check the coating condition of the stern shaft 9; the L-shaped endoscope 10 adopts an endoscope armoured cable 2, so that the strength and the operability of the L-shaped endoscope 10 are ensured;
as a preferred embodiment, as shown in fig. 1, a front watertight stuffing box 4 and a rear watertight stuffing box 6 are arranged in front of and behind the front steel casting 5, so as to ensure the sealing performance in the operation of the system;
as a preferred embodiment, the system is provided with a U-shaped guide rail 8,U, wherein the bottom of the guide rail 8 is welded with the stern tube 7, the front part and the rear part are welded with the steel casting, the axial movement of the endoscope is limited, the whole coating area of the stern shaft 9 is covered, and the lens of the endoscope always faces the coating direction of the stern shaft 9;
as a preferred embodiment, as shown in fig. 1, a flange seat is welded on the front steel casting 5, a flange cap 3 is arranged, when a system fails (a cable stuffing box fails), and when the system leaks, the cable can be cut off immediately, and the flange cap 3 is installed through screws to seal the opening from water inflow, so that the safety of a ship is ensured.
In the invention, the L-shaped endoscope 10 is adopted, the lens is upward, the condition of the upper shaft system coating can be effectively observed, the limit is provided, and the endoscope is prevented from being pulled out from the watertight stuffing box to cause water leakage; the L-shaped endoscope 10 adopts the endoscope armoured cable 2, so that the operation of the endoscope is smooth while the cable is effectively protected.
In addition, the U-shaped guide rail 8 is arranged, the opening is upward, the axial movement and the observation direction of the endoscope are effectively controlled, the clamping and the damage of the endoscope are avoided, and the inspection range of the endoscope is ensured to cover the whole coating coverage area of the stern shaft 9; two sets of watertight stuffing boxes are arranged inside and outside the front steel casting 5, so that the free axial movement of an endoscope cable is ensured, and simultaneously, double sealing is provided, seawater is prevented from entering the cabin, the inspection of a coating of a ship without docking is realized, the related cost caused by docking and the influence on the operation of the ship are avoided, and the business efficiency of the ship is improved; a flange cap 3 is arranged in the cabin. When the underwater inspection system fails, the cable can be cut off immediately under the condition that the cable stuffing box fails and leaks water, and the flange cap 3 is used for sealing the opening to avoid water inflow in the cabin, so that the safety of the ship is ensured.
Finally, it should be noted that: the foregoing description of the preferred embodiments of the present invention is not intended to be limiting, but rather, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. The underwater inspection system for the water lubrication shafting coating is characterized by comprising a steel casting sleeved on the outer side of a stern shaft (9), a stern tube (7) penetrating through the steel casting, an endoscope which is arranged on the inner side of the stern tube (7) and used for observing the shafting coating, and a cable penetrating through the steel casting and connected with the endoscope.
2. The underwater inspection system of water-lubricated shafting coatings according to claim 2, characterized in that a U-shaped guide rail (8) with an opening facing the stern shaft (9) is arranged on the inner side of the stern tube (7), and the endoscope is arranged in the opening of the U-shaped guide rail (8).
3. A water lubricated shafting coating underwater inspection system in accordance with claim 3, wherein said endoscope is an L-shaped endoscope (10).
4. A water lubricated shafting coating underwater inspection system according to claim 3, wherein the bottom of the U-shaped guide rail (8) is welded to a tail pipe, and welded to the steel casting in front and back.
5. The underwater inspection system for the water-lubricated shafting coating according to claim 2, wherein a front watertight stuffing box (4) and a rear watertight stuffing box (6) for sealing are respectively arranged at the front and the rear of the steel casting.
6. The underwater inspection system of water lubricated shafting coatings according to claim 1, characterized in that a water lubricated bearing (12) is provided between the stern shaft (9) and the steel casting.
7. The underwater inspection system of water lubricated shafting coatings according to claim 7, characterized in that a stern shaft sleeve (11) is provided between the stern shaft (9) and the water lubricated bearing (12).
8. The underwater inspection system of water-lubricated shafting coatings according to claim 1, wherein a flange seat and a flange cap (3) are arranged on the steel casting.
9. An underwater inspection system for water lubricated shafting coatings according to claim 1, wherein the cable is an endoscope armoured cable (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310930190.6A CN117092098A (en) | 2023-07-26 | 2023-07-26 | Underwater inspection system for water lubrication shafting coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310930190.6A CN117092098A (en) | 2023-07-26 | 2023-07-26 | Underwater inspection system for water lubrication shafting coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117092098A true CN117092098A (en) | 2023-11-21 |
Family
ID=88781229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310930190.6A Pending CN117092098A (en) | 2023-07-26 | 2023-07-26 | Underwater inspection system for water lubrication shafting coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117092098A (en) |
-
2023
- 2023-07-26 CN CN202310930190.6A patent/CN117092098A/en active Pending
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