CN114932990B - Lighting auxiliary device for stern tube - Google Patents
Lighting auxiliary device for stern tube Download PDFInfo
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- CN114932990B CN114932990B CN202210420262.8A CN202210420262A CN114932990B CN 114932990 B CN114932990 B CN 114932990B CN 202210420262 A CN202210420262 A CN 202210420262A CN 114932990 B CN114932990 B CN 114932990B
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- stern tube
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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
- B63B73/60—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Combustion & Propulsion (AREA)
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- Ocean & Marine Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The application relates to the technical field of ships, in particular to a light auxiliary device for a stern tube. In the light assisting device for the stern tube, the light targets can be hung on the movable frame, the movable frame can be operated to feed the light targets into the stern tube when the light assisting device is used, and the movable frame can be operated to move back and forth through the operation part, so that the positions of the light targets in the stern tube are adjusted. After the optical targets are conveyed in place, the power device is controlled, the lengths of the telescopic legs of the optical targets on the optical target seat are adjusted, and as at least three telescopic mechanisms are radially distributed, the positions of the aiming marks on the optical target aiming piece in the stern tube can be changed according to the shafting center observed by the optical instrument. The light irradiation auxiliary device for the stern tube is operated outside the stern tube through the operation part, so that crawling operation of workers in the stern tube is avoided, the operation efficiency is improved, the light irradiation auxiliary device can be applied to the stern tube with the too small diameter, and the technical problem of low installation efficiency caused by inconvenient installation of the existing light target under the environment with small space is solved.
Description
Technical Field
The application relates to the technical field of ships, in particular to a light auxiliary device for a stern tube.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
When the ship is built, the verticality of the center line of the shafting and the rudder system is often required to be checked by using a stay wire method, and the positions of a shaft boring hole and a rudder boring hole are adjusted according to the checking result, the installation position of a host machine is determined, the position of a middle bearing of a stern tube is determined, and the boring amount of the front end and the rear end of the stern tube is determined. After the wire is pulled, the optical collimator is used for illumination, the optical collimator is arranged on the center of a shaft system determined by the wire pulling, a light target is positioned in the stern tube, the center of the stern tube is determined by finely adjusting the centers of the front light target and the rear light target to be concentric with the optical collimator, and then the center of the stern tube is determined, and a boring circle and an inspection circle of the stern tube are accurately drawn, so that the centering accuracy of the shaft system is improved. When the ship is maintained, the deformation of each part of the shafting needs to be detected, and the optical collimator is also needed to be used for measurement.
At present, the installation of the optical targets mainly depends on manual installation of the optical targets at designated positions, and the central positions of the optical targets are adjusted according to requirements to enable the centers of the optical targets to coincide with the centers of shafting, so that the optical targets are easy to convey, position and install when the shaft tube with large diameter and short length irradiates light. When the long shafting shaft tube with smaller aperture is used for illuminating, the light target is inconvenient to convey, position and install, and the current method is that a technician with a small size is selected to crawl in the stern tube, so that the operation is inconvenient and the efficiency is low.
Disclosure of Invention
An object of the embodiment of the application is to provide a light auxiliary device for stern tube for solve the current light target and install inconvenient technical problem that causes the installation effectiveness low under the less environment in space.
In a first aspect, there is provided a lighting aid for a stern tube, comprising:
the movable frame is used for moving back and forth in the stern tube, a roller wheel used for being in rolling fit with the inner wall of the stern tube is arranged on the movable frame, and the movable frame comprises an operation part which is used for extending out of the stern tube to allow an operator to operate the movable frame to move;
the optical target comprises an optical target seat, an optical target aiming piece arranged on the optical target seat, an aiming mark for aiming by an optical instrument for illumination, and an illuminating lamp arranged on the optical target seat for illuminating the optical target aiming piece;
the telescopic mechanisms comprise telescopic legs of the targets and a power device for driving the telescopic legs of the targets to stretch out and then push against the inner wall of the stern tube, and the telescopic legs of the targets are radially arranged with the targets as the center, so that the telescopic legs of the targets of the telescopic mechanisms can fix the targets in the stern tube, and the length of the telescopic legs of the targets can be controlled by the power device to adjust the positions of the sighting marks in the stern tube;
the flexible piece, the light target seat is hung on the movable frame through the flexible piece, and the flexible piece can adapt to the position change of the light target seat through deformation when the length of the power device control light target telescopic leg changes.
In one possible embodiment, the operating part is an operating lever comprising at least two lever sections, the lever sections being detachably connected to each other for pushing the mobile carriage to the target position by means of the extension lever sections.
In one possible embodiment, adjacent pole segments are connected by threads.
In a possible implementation manner, the movable frame comprises a frame body and movable frame telescopic legs, the idler wheels are arranged on the movable frame telescopic legs, the operation part is arranged on the frame body, and at least two groups of movable frame telescopic legs are arranged at intervals front and back, so that one group of movable frame telescopic legs can retract to avoid when meeting the obstacle structure of the inner wall of the stern tube.
In one possible embodiment, the movable frame or the light target is provided with a camera for monitoring the obstacle structure of the inner wall of the stern tube.
In one possible implementation, the light target seat comprises a barrel extending back and forth, the front end and the rear end of the barrel are open, the light target aiming piece is a light target aiming vertical plate fixed in the barrel, the two side plate surfaces of the light target aiming vertical plate face the two end openings of the barrel respectively, and the aiming mark is arranged on the light target aiming vertical plate.
In one possible embodiment, the mobile frame is provided with perforations through which the flexure passes to suspend the optical target holder on the mobile frame.
In one possible embodiment, the telescoping mechanism is an electric telescoping rod.
In one possible embodiment, the flexible member is a resilient member.
In one possible embodiment, the flexible member is a rope or chain or a strap.
The light auxiliary device for the stern tube has the beneficial effects that: in the light assisting device for the stern tube, the light targets can be hung on the movable frame, the movable frame can be operated to feed the light targets into the stern tube when the light assisting device is used, and the movable frame can be operated to move back and forth through the operation part, so that the positions of the light targets in the stern tube are adjusted. After the light targets are conveyed in place, the power device is controlled, the lengths of the light target telescopic legs on the light target seat are adjusted, and as at least three telescopic mechanisms are distributed radially, the positions of the aiming marks on the light target aiming piece in the stern tube can be changed according to the shafting center observed by an optical instrument, the lengths of the light target telescopic legs are kept unchanged, and the light targets are fixed in the stern tube. In order not to influence the change of the position of the optical target aiming piece, the optical target seat is hung on the movable frame through the flexible piece, so that when the length of the telescopic leg of the optical target is changed, the flexible piece can be deformed, and the position change of the optical target seat is further adapted. The light irradiation auxiliary device for the stern tube is operated outside the stern tube through the operation part, so that crawling operation of workers in the stern tube is avoided, the operation efficiency is improved, the light irradiation auxiliary device can be applied to the stern tube with the too small diameter, and the technical problem of low installation efficiency caused by inconvenient installation of the existing light target under the environment with small space is solved.
Description of the drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing a structure of a light assisting device for a stern tube according to an embodiment of the present application;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a view showing a state where a light target telescoping leg protrudes and abuts against the inner wall of a stern tube in a stern tube lighting auxiliary device according to an embodiment of the present application;
FIG. 4 is a schematic view of a line in a stern tube lighting aid according to one embodiment of the present application;
FIG. 5 is a schematic view showing the structure of a light target in a light assisting device for a stern tube according to an embodiment of the present application;
FIG. 6 is a right side view of FIG. 5;
FIG. 7 is a schematic diagram of a light assist device for a stern tube before connecting two pole segments according to one embodiment of the present application;
fig. 8 is a schematic structural view of a light target telescoping leg in the stern tube lighting auxiliary device according to an embodiment of the present application.
In the figure: 1. a stern tube; 2. a moving rack; 3. a roller; 4. a light target holder; 5. a light target aiming member; 6. a lighting lamp; 7. aiming the mark; 8. a light target telescopic leg; 9. a flexible member; 10. an operation lever; 11. a pole segment; 12. a movable frame telescopic leg; 13. a frame body; 14. a camera; 15. perforating; 16. a first rod body; 17. a second rod body; 18. a driving wheel; 19. a transmission belt; 20. a displacement sensor; 21. a control unit; 22. a display screen; 23. a protrusion; 24. briquetting; 25. a connecting rod; 26. and a battery.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
According to a first aspect of the present application, there is provided an illumination assisting device for a stern tube, referring to fig. 1 to 3, comprising a moving frame 2 for moving back and forth in a stern tube 1, a roller 3 provided on the moving frame 2 for rolling engagement with an inner wall of the stern tube 1, the moving frame 2 comprising an operating portion for extending out of the stern tube 1 for an operator to operate the moving frame 2 for movement.
The light assisting device for the stern tube 1 further comprises a light target, wherein the light target comprises a light target seat 4 and a light target aiming piece 5 arranged on the light target seat 4, an aiming mark 7 for aiming by an optical instrument for light is arranged on the light target aiming piece 5, and the light target further comprises an illuminating lamp 6 which is arranged on the light target seat 4 and used for illuminating the light target aiming piece 5. The telescopic mechanisms capable of independently running are arranged on the light target seat 4, each telescopic mechanism comprises a light target telescopic leg 8 and a power device for driving the light target telescopic leg 8 to stretch out and draw back, the light target telescopic legs 8 are propped against the inner wall of the stern tube 1, the at least three telescopic mechanisms are radially arranged by taking the light target seat 4 as the center, so that the light target telescopic legs 8 of the telescopic mechanisms can fix light targets in the stern tube 1, and the positions of the aiming marks 7 in the stern tube 1 can be adjusted by controlling the lengths of the light target telescopic legs 8 through the power device.
The light auxiliary device for the stern tube 1 further comprises a flexible piece 9, the light target seat 4 is hoisted on the movable frame 2 through the flexible piece 9, and the flexible piece 9 can adapt to the position change of the light target seat 4 through deformation when the length of the light target telescopic leg 8 is controlled through the power device.
In the light irradiation auxiliary device for the stern tube, the light targets are hung on the movable frame 2, the movable frame 2 is operated to feed the light targets into the stern tube 1, the movable frame 2 can be operated to move back and forth through the operation part, and then the positions of the light targets in the stern tube 1 are adjusted. After the light targets are conveyed in place, the power device is controlled, the lengths of the light target telescopic legs 8 on the light target seat 4 are adjusted, and as at least three telescopic mechanisms are distributed radially, the positions of the aiming marks 7 on the light target aiming piece 5 in the stern tube 1 can be changed according to the shafting center observed by an optical instrument until the positions of the aiming marks 7 meet the requirements, the lengths of the light target telescopic legs 8 are kept unchanged, and the fixation of the light targets in the stern tube 1 is realized. In order not to influence the change of the position of the optical target aiming part 5, the optical target seat 4 is hung on the movable frame 2 through the flexible part 9, so that when the length of the optical target telescopic leg 8 is changed, the flexible part 9 can be deformed, and the position change of the optical target seat 4 is further adapted.
The illumination auxiliary device for the stern tube is operated outside the stern tube 1 through the operation part, so that crawling operation of workers in the stern tube 1 is avoided, the operation efficiency is improved, and the illumination auxiliary device for the stern tube is applicable to the stern tube 1 with the too small diameter.
In the application, the light irradiation auxiliary device for the stern tube is used, as the light target seat 4 is hoisted by the flexible piece 9, the initial position of the light target aiming piece 5 is preferably set below the theoretical position, so that the stretching deformation of the flexible piece 9 can be avoided, the stress of the light target telescopic legs 8 is reduced, and the stability of the device is improved.
Preferably, as shown in fig. 1, the flexible member 9 is an elastic member made of an elastic material. The elastic member has a large deformability, and can be applied to the position change of the optical target holder 4 in a plurality of directions. Further preferably, the flexible member 9 is a rope or a chain or a strap.
In one embodiment, as shown in fig. 1, 3 and 7, the operation part is an operation lever 10, and the operation lever 10 includes a plurality of lever segments 11, and the lever segments 11 are detachably connected to push the moving frame 2 to the target position by the extension lever segments 11. The plurality of pole segments 11 are sequentially connected so as to facilitate the installation operation, and the operation space can be saved. Preferably, as shown in fig. 7, the pole segments 11 are threadably connected.
In one embodiment, as shown in fig. 1 and fig. 2, the movable frame 2 includes a frame body 13 and movable frame telescopic legs 12, the rollers 3 are disposed on the movable frame telescopic legs 12, the operation part is disposed on the frame body 13, and at least two groups of movable frame telescopic legs 12 are disposed at intervals front and back, so that one group of movable frame telescopic legs 12 can retract and pass through when meeting the obstacle structure on the inner wall of the stern tube 1. The obstacle structure may be a groove or a protrusion 23 of the inner wall of the stern tube 1. When the movable frame 2 encounters an obstacle structure in the stern tube 1, the movable frame telescopic legs 12 of each group can sequentially pass through the obstacle structure by sequentially retracting the movable frame telescopic legs 12 of each group. In one embodiment, as shown in fig. 1 and 2, a movable support leg is further provided on the frame body, and the length of the movable support leg is not adjustable. In this embodiment one mobile setting leg is provided. In other embodiments, the number of the fixed legs and the telescopic legs of the movable frame can be adjusted according to the needs, and more than three telescopic legs of the movable frame can be arranged, or only one telescopic leg can be arranged.
In order to accurately determine the position of the obstacle structure, in one embodiment, as shown in fig. 1 and 2, a camera 14 for monitoring the obstacle structure on the inner wall of the stern tube 1 is provided on the light target. In one embodiment, a camera 14 for monitoring the obstacle structure of the inner wall of the stern tube 1 may be provided on the movable frame 2.
Preferably, two movable frame telescopic legs 12 are arranged in the group of movable frame telescopic legs, and the two movable frame telescopic legs 12 are arranged in a V shape, so that the stability of the movable frame 2 is maintained.
In one embodiment, as shown in fig. 5 and 6, the optical target holder 4 includes a barrel extending back and forth, and two ends of the barrel are opened, the optical target aiming member 5 is an optical target aiming vertical plate fixed in the barrel, two side plate surfaces of the optical target aiming vertical plate are respectively opened towards two ends of the barrel, and the aiming mark 7 is arranged on the optical target aiming vertical plate. The barrel is convenient for the installation of the light target aiming vertical plate and the hoisting of the flexible piece 9. In one embodiment, the illumination lamp 6 is positioned on a side surface of the light target aiming riser, so that the illumination effect on the aiming mark 7 is better. In one embodiment, the aiming mark 7 employs an aiming hole, and the light emitted from the illuminating lamp 6 can strike the aiming hole. To enhance the illumination effect, in one embodiment, the illumination lamp 6 is a ring lamp at the periphery of the aiming hole. The illumination lamp 6 is powered by a battery 26, which is on the same side of the light target aiming riser as the illumination lamp 6.
In one embodiment, as shown in fig. 1, the moving frame 2 is provided with a through hole 15, and the flexure 9 passes through the through hole 15 to suspend the optical target holder 4 on the moving frame 2.
In one embodiment, the telescoping mechanism is an electric telescoping rod. Preferably, as shown in fig. 8, the electric telescopic rod comprises a driving motor, a first rod body 16 and a second rod body 17, the first rod body 16 is fixed on the light target seat 4, a driving wheel 18 and a driving belt 19 are arranged on the first rod body 16, a connecting rod is arranged on the second rod body 17, a pressing block 24 is arranged on the connecting rod 25, the driving belt 19 is pressed on the connecting rod by the pressing block 24, the driving motor drives the driving wheel 18 to rotate, the second rod body 17 is driven to move by the driving belt 19, the second rod body 17 is inserted into the first rod body 16, and the driving motor drives the second rod body 17 to extend and retract from the first rod body 16 through forward rotation and reverse rotation so as to realize the extension and shortening of the electric telescopic rod. Wherein the driving motor, the driving wheel 18 and the driving belt 19 form a power device of the telescopic mechanism, and the first rod body 16 and the second rod body 17 form a light target telescopic leg 8 of the telescopic mechanism. In one embodiment, the movable frame telescoping leg 12 is of the same construction as the light target telescoping leg 8. One end of the light target telescopic leg 8 is a fixed end fixed on the light target seat 4, and the other end is a movable end capable of moving under the action of the power device. Because the movable end of the telescopic light target leg 8 and the inner wall of the stern tube 1 inevitably move relatively in the process of adjusting the sighting mark 7 to enable the sighting mark center to be consistent with the shafting center, in order to facilitate the movement of the movable end of the telescopic light target leg 8, the end face of the movable end of the telescopic light target leg 8 is set to be a spherical surface, and thus the movable end of the telescopic light target end and the inner wall of the stern tube 1 can slide relatively. In one embodiment, the movable end of the telescoping leg of the light target may also be provided with wheels to facilitate movement of the movable end.
In order to be able to know precisely the position of the light target sight in the stern tube, in one embodiment the mobile carriage 2 is provided with a displacement sensor 20 for measuring the distance travelled by the mobile carriage 2. Preferably, the displacement sensor 20 adopts a laser sensor, and a measurement marking plate for measuring the displacement sensor 20 is arranged at one end of the stern tube in use.
In one embodiment, as shown in fig. 1, 3 and 4, the movement of the telescopic mechanism is controlled by a control unit 21, a display screen 22 is arranged on the control unit 21, and the display screen 22 is connected with a camera 14 for monitoring the obstacle structure of the inner wall of the stern tube 1 for an operator to observe the working condition in the stern tube 1. The movement of the light target telescopic leg 8 and the movable frame telescopic leg 12 is controlled by the control unit 21, the light target telescopic leg 8 and the movable frame telescopic leg 12 are connected with a control line and are also connected with a power line, the power line and the control line are arranged along the operating rod 10, and when the operating rod 10 continues to connect the rod section 11, the power line and the control line need to be bound on the rod section 11 and fed into the stern tube 1.
The preferred way of using the light assisting device for the stern tube 1 of the present application is as follows:
before the illumination measurement, the movable frame 2 and the optical targets are assembled, the optical targets are hung on the movable frame 2 through the flexible piece 9, and the center of the optical targets is positioned at the lower side of the center of the shafting, so that the stretching deformation of the flexible piece 9 is reduced. The telescopic leg 8 of the optical target is retracted so as not to affect the normal movement of the moving frame 2. The front end of the movable frame 2 is arranged in the stern tube 1, an operator operates the operating rod 10, the position of the movable frame 2 is obtained through the displacement sensor 20 on the movable frame 2 until the movable frame 2 reaches a target position, then the operator sends an instruction on the control unit 21 to enable the light target telescopic legs 8 to extend, and each light target telescopic leg 8 is propped against the inner wall of the stern tube 1; the position of the aiming hole on the optical target aiming piece 5 is measured through an optical instrument, at the moment, an operator adjusts the expansion and contraction amount of each optical target expansion and contraction leg 8 according to the measuring structure of the optical instrument, so that the aiming hole on the optical target aiming piece 5 is positioned on the central line of a ship shafting, the determination of the center of the stern tube 1 is completed, and according to the position of the aiming hole, a circle is drawn at the position needing boring by adopting compasses as the center of a circle, and the circle is used as a reference mark of the boring.
Besides drawing boring marks, the deformation of the stern tube 1 can be measured by adopting the illumination auxiliary device for the stern tube 1, and the difference between the center of the stern tube 1 and the center of the shafting is measured by adopting the illumination auxiliary device at different positions of the stern tube 1 in sequence, so that the deformation of the stern tube 1 at different positions is obtained.
In one embodiment, the operating portion is an integral operating lever. In addition to the operation lever, in one embodiment, the operation portion may be driven by an electric operation manner, for example, a driving motor is arranged outside the stern tube, a transmission gear is arranged on an output shaft of the driving motor, a rack matched with the transmission gear is arranged on the moving frame, the rack is driven to move forward through the transmission gear, and the moving frame is driven to move forward, so that the rack forms the operation portion on the moving frame.
In addition to the threaded connection, in one embodiment, screws are used to removably secure adjacent pole segments.
In one embodiment, for a stern tube with a smoother inner wall surface, the rollers on the movable frame are directly arranged on the frame body, and the telescopic legs of the movable frame are not required to be arranged.
In one embodiment, the flexible member is a rope or chain or strap. In one embodiment, the flexible member may be directly attached to the lever of the mobile carriage without the need to make holes in the lever. In one embodiment of the present invention, in one embodiment,
in one embodiment, the light target aiming riser is a cross center plate with aiming holes in a cross arrangement. In one embodiment, the light target sighting marks may also be graduation marks provided on the transparent glass.
In one embodiment, the light target holder is plate-shaped, and the light target aiming riser is fixed on the upper side of the light plate holder.
In one embodiment, the motorized telescopic rod is a well-established motorized push rod in the prior art.
In one embodiment, the position of the light target sight in the stern tube is known by the length of the lever into the stern tube, at which time no displacement sensor is required.
In one embodiment, four telescoping mechanisms are employed as desired. In order to improve the stability of the light target seat, the telescopic mechanisms are arranged in more than two groups, wherein each group of telescopic mechanisms is provided with three telescopic mechanisms, the three telescopic mechanisms are radially arranged by taking the light target seat as the center, the two groups of telescopic mechanisms are arranged at intervals in the front-back direction, and the arrangement mode can enable the front end and the back end of the light target seat to be supported, so that the stability of the light target seat is better.
In one embodiment, more than two movable frame telescopic legs are arranged in a group of movable frame telescopic legs, and the movable frame telescopic legs in the same group are arranged in a radial shape.
In one embodiment, one end of the telescoping leg of the light target is hinged to the light target holder, but the swing of the telescoping leg of the light target relative to the light target holder should be limited to a certain range.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (10)
1. A lighting aid for a stern tube, comprising:
the movable frame is used for moving back and forth in the stern tube, a roller wheel used for being in rolling fit with the inner wall of the stern tube is arranged on the movable frame, and the movable frame comprises an operation part which is used for extending out of the stern tube to allow an operator to operate the movable frame to move;
the optical target comprises an optical target seat, an optical target aiming piece arranged on the optical target seat, an aiming mark for aiming by an optical instrument for illumination, and an illuminating lamp arranged on the optical target seat for illuminating the optical target aiming piece;
the telescopic mechanisms are arranged on the light target seat and comprise light target telescopic legs and a power device for driving the light target telescopic legs to stretch out and draw back, the light target telescopic legs are propped against the inner wall of the stern tube after stretching out, and the at least three telescopic mechanisms are radially arranged by taking the light target seat as the center, so that the light target telescopic legs of the telescopic mechanisms can fix the light target in the stern tube, and the positions of aiming marks in the stern tube can be adjusted by controlling the lengths of the light target telescopic legs through the power device;
the flexible piece, the light target seat is hung on the movable frame through the flexible piece, and the flexible piece can adapt to the position change of the light target seat through deformation when the length of the power device control light target telescopic leg changes.
2. A stern tube lighting aid as claimed in claim 1, characterised in that the operating part is an operating lever comprising at least two lever sections, the lever sections being detachably connected to each other for pushing the mobile frame to the target position by means of the extension lever sections.
3. A stern tube lighting aid as claimed in claim 2, characterised in that adjacent pole sections are connected by screw threads.
4. A stern tube lighting aid as claimed in claim 1, 2 or 3, wherein the movable frame comprises a frame body and movable frame telescopic legs, the rollers are arranged on the movable frame telescopic legs, the operation part is arranged on the frame body, and at least two groups of movable frame telescopic legs are arranged at intervals in front of and behind the movable frame telescopic legs, so that one group of movable frame telescopic legs can retract to avoid and pass through when meeting the obstacle structure on the inner wall of the stern tube.
5. A stern tube lighting aid as claimed in claim 4, wherein a camera for monitoring the obstruction of the stern tube inner wall is provided on the movable frame or the light target.
6. A stern tube lighting aid as claimed in claim 1, 2 or 3, wherein the light target holder comprises a barrel extending forwards and backwards, the front and rear ends of the barrel are open, the light target aiming member is a light target aiming vertical plate fixed in the barrel, the two side faces of the light target aiming vertical plate are open towards the two ends of the barrel respectively, and the aiming mark is arranged on the light target aiming vertical plate.
7. A stern tube lighting aid as claimed in claim 1, 2 or 3, wherein the telescopic leg has a fixed end and a movable end, the fixed end being fixed to the base and the movable end being adapted to contact the stern tube inner wall and to move with the telescopic leg when the telescopic leg is telescopic.
8. A stern tube lighting aid as claimed in claim 1, 2 or 3, wherein the telescopic mechanism is an electric telescopic rod.
9. A stern tube lighting aid as claimed in claim 1, 2 or 3, wherein the flexible member is an elastic member.
10. A stern tube lighting aid as claimed in claim 1, 2 or 3, wherein the flexible member is a rope or chain or strap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210420262.8A CN114932990B (en) | 2022-04-20 | 2022-04-20 | Lighting auxiliary device for stern tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210420262.8A CN114932990B (en) | 2022-04-20 | 2022-04-20 | Lighting auxiliary device for stern tube |
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| Publication Number | Publication Date |
|---|---|
| CN114932990A CN114932990A (en) | 2022-08-23 |
| CN114932990B true CN114932990B (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210420262.8A Active CN114932990B (en) | 2022-04-20 | 2022-04-20 | Lighting auxiliary device for stern tube |
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| JPS52135196A (en) * | 1976-05-07 | 1977-11-11 | Nippon Kokan Kk <Nkk> | Positioning apparatus of stern tube boring device |
| CN203439225U (en) * | 2013-04-20 | 2014-02-19 | 江苏宏强船舶重工有限公司 | Light target with laser positioning for stern tube of offshore engineering ship |
| CN203450955U (en) * | 2013-08-01 | 2014-02-26 | 中船澄西船舶修造有限公司 | Portable line traction frame |
| CN203949588U (en) * | 2014-06-30 | 2014-11-19 | 中船黄埔文冲船舶有限公司 | A kind of axis irradiation positioning measuring device |
| CN106809340B (en) * | 2017-01-13 | 2018-06-22 | 宁波大学 | The underwater 3D scanning shiprepair devices of ship hull bottom and its shiprepair method |
| CN110030984B (en) * | 2018-01-11 | 2023-11-03 | 招商局邮轮研究院(上海)有限公司 | Lighting table with light target frame |
| CN211305462U (en) * | 2019-09-27 | 2020-08-21 | 舟山中远海运重工有限公司 | Correcting device for ship shafting stern tube |
| CN213080125U (en) * | 2020-07-16 | 2021-04-30 | 江苏扬子鑫福造船有限公司 | Tool for adjusting boring row center of stern tube boring hole |
| CN112378337A (en) * | 2020-11-24 | 2021-02-19 | 河北东讯科技有限公司 | Automatic device and detection method for detecting warping degree of main beam web of crane |
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2022
- 2022-04-20 CN CN202210420262.8A patent/CN114932990B/en active Active
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