CN110758702A - Retractable thruster system capable of being maintained in ship - Google Patents
Retractable thruster system capable of being maintained in ship Download PDFInfo
- Publication number
- CN110758702A CN110758702A CN201910975498.6A CN201910975498A CN110758702A CN 110758702 A CN110758702 A CN 110758702A CN 201910975498 A CN201910975498 A CN 201910975498A CN 110758702 A CN110758702 A CN 110758702A
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- China
- Prior art keywords
- propeller
- ship
- mounting area
- box body
- platform
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
Abstract
The invention discloses a telescopic propeller system capable of being maintained in a ship, which comprises a propeller mounting area and a structure box, wherein the propeller mounting area is provided with a lower supporting structure and a ship structure platform; when the structure box body descends to touch the lower supporting structure and stops moving, the underwater part of the propeller just completely exposes out of the ship, and the position of a pin hole in the lower locking structure just corresponds to the position of a pin of the structure box body; when the structure box body rises to touch the hull structure platform and stops moving, and the underwater part of the propeller is retracted into the ship, the position of a pin hole in the upper locking structure corresponds to the position of a pin of the structure box body; when the propeller breaks down, only need withdraw the propeller to get into hull structure platform through personnel and can overhaul the propeller, greatly reduced the cost of propeller trouble maintenance.
Description
Technical Field
The present invention relates to a marine propeller, and more particularly, to a retractable propeller system that can be maintained in a ship.
Background
The propeller generally applied to marine dynamic positioning of ships or ocean engineering can be divided into a fixed type propeller and a telescopic type propeller from the installation form, wherein the fixed type propeller is characterized in that a main body propelling blade and a flow guide cover part of the propeller are fixedly installed on a ship body; the main body propulsion paddle and the air guide sleeve part can be stretched, the underwater part (the main body propulsion paddle and the air guide sleeve part) of the propeller is retracted or pushed into the ship body by pushing and pulling of the hydraulic cylinder according to needs, the main purpose is to recover the propeller which does not participate in the navigation propulsion of the ship or the ocean engineering into the ship body from the outside of the ship body when the ship or the ocean engineering sails, and when the ship or the ocean engineering reaches an operation area and needs power positioning, the propeller can extend out of the outside of the ship body through the hydraulic cylinder, so that the limit of the propeller on the depth of a channel is reduced as much as possible.
The ship or ocean engineering adopting the telescopic propeller usually has short operation time on the sea, and if the propeller breaks down, the propeller can not be usually disassembled, maintained or replaced on the sea, and the main reason is that the main propelling blades, the guide cover part and the telescopic structure are specially connected, and the marine disassembly is difficult. For projects which need to operate on the sea for a long time and cannot have operation interruption, if the propeller breaks down in the operation process, the propeller can only be detached, repaired or replaced on the sea, such projects can only adopt conventional propellers, and only underwater installation of the propeller on the sea can be considered in the construction process, so that the construction cost of the projects can be increased. Meanwhile, after the project propellers are installed, as the propellers are hung outside the ship body in the sailing process, the propellers increase the resistance of the ship or ocean engineering in the sailing process, and therefore the offshore migration cost of the project is increased.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a retractable thruster system capable of being maintained in a ship
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a scheme design of an installation box body capable of realizing the stretching function of a conventional propeller under water after being installed, which is mainly characterized in that the propeller and a driving motor are both installed in a structural box body, and the structural box body is an approximate U-shaped structural box body with an opened upper part and a closed lower part; the upper open area of the structural box body is a circular cylinder, the circular cylinder penetrates through the lower part of the ship structure and adopts a sealing device, so that the sealing between the circular cylinder and the ship body is ensured, and seawater cannot enter the ship body from the area; the top of the mounting structure is hung on the ship body through the hydraulic cylinder, and when the hydraulic cylinder stretches out and draws back, the structure box body and the propeller arranged on the structure box body can move up and down along with the stretching of the hydraulic cylinder, so that the underwater stretching function of the conventional propeller is realized.
The upper part and the lower part of the installation box body are respectively provided with the guide structures, the ship body is correspondingly provided with the axial guide structures, when the hydraulic telescopic push-pull installation structure box and the propeller are lifted, the two guide structures are mutually limited, the shaking of the installation box body in the moving process is ensured to be as small as possible, and meanwhile, the sealing reliability of the watertight device of the round cylinder body at the upper part of the structure box body and the ship body structure penetrating hole is improved.
The lower part of the mounting box body is provided with a hydraulically driven pin, the ship body is provided with a locking structure, the locking structures are respectively arranged at the upper position and the lower position of the ship body, the lower locking structure is used for locking the mounting box body and the ship body when the propeller is pushed out of the ship body, and the locking structure at the position needs to bear the maximum torque force when the propeller works besides the locking between the structural box body and the ship body, so that the normal work of the propeller is ensured; the upper locking structure is mainly used for locking the propeller after being recovered to the ship body.
The bottom of the ship body is provided with a lower supporting structure which is mainly used for vertically supporting the mounting box body when the propeller extends out of the ship body, and when the propeller extends out of the ship body through a hydraulic cylinder, the weight of the propeller and the mounting box body is completely borne by the supporting structure;
the lower part of the upper part of the lower supporting structure and the lower part of the installation box body are provided with gaskets for sealing, after the telescopic hydraulic cylinder puts the propeller and the installation box body down on the supporting structure, the telescopic hydraulic cylinder continues to push the installation box body downwards, downward pressure is applied to the structure box body, and watertight between the lower supporting structure and the installation box body is ensured through the pressure, so that when personnel stretch out of the ship body at the propeller, the ship body structure and the external structure of the installation box body are safely inspected.
The watertight cover plate capable of being opened in half is arranged at the supporting structure at the lower part of the ship body, when the propeller is completely recovered into the ship body, the cover plate can be pushed by the hydraulic cylinder to cover the opening at the lower part of the ship body, so that the seawater outside the ship body can not enter the ship body, and the seawater which enters the ship body can be discharged out of the ship body through the water pump. When the seawater in the ship body is completely discharged, personnel can enter the propeller area through the ladder way to maintain or repair the propeller.
More specifically:
the invention relates to a telescopic propeller system capable of being maintained in a ship, which comprises a propeller mounting area dug at the bottom of a ship body, wherein the bottom end of the propeller mounting area is communicated with the outside, and a structural box body used for fixing a propeller and arranged in the propeller mounting area; the lower part of the propeller is a propeller underwater part which is exposed outside the ship and plays a role in propelling;
the middle upper part of the side wall of the propeller mounting area extends inwards to vertically extend out of the ship structure platform; the structure box body is connected to the top surface of the mounting area of the propeller through a hydraulic lifting cylinder penetrating through the hull structure platform; a lower supporting structure vertically extends from the bottom of the side wall of the propeller mounting area;
the outer wall of the structure box body is provided with a pin driven by hydraulic pressure; the side wall of the propeller mounting area is provided with an upper locking structure and a lower locking structure, and the upper locking structure and the lower locking structure are both provided with pin openings corresponding to the pins;
the bottom of the propeller mounting area is connected with a watertight cover plate, and the watertight cover plate is connected with a watertight cover plate hydraulic cylinder; the watertight cover plate hydraulic cylinder controls the opening and closing of the watertight cover plate;
when the structure box body descends to touch the lower supporting structure and is limited by the lower supporting structure to stop moving, the underwater part of the propeller just completely exposes out of the ship, and the position of a pin hole in the lower locking structure just corresponds to the position of a pin;
when the structure box body rises to touch the hull structure platform and is limited by the hull structure platform to stop moving, and the underwater part of the propeller is just completely retracted into the ship, the position of the pin hole in the upper locking structure corresponds to the position of the pin, and the watertight cover plate when closed is positioned below the underwater part of the propeller;
a seawater pump for discharging seawater out of the propeller mounting area is also arranged in the propeller mounting area;
the ship structure platform is connected to the maintenance room through a personnel channel arranged on the ship;
a straight ladder for people to use is erected from the hull structure platform to the lower supporting structure. The vertical ladder may also reach only the lower locking structure when the lower locking structure is very close to the lower support structure.
Preferably, the side wall of the thruster mounting area is provided with an axial guide structure limiting the movement of the structural casing towards a direction perpendicular to the side wall of the thruster mounting area.
Preferably, the top of the structural box body is a circular cylinder parallel to the side wall of the mounting area of the propeller; the center of the hull structure platform is provided with a circular opening; the circular cylinder body penetrates through the circular opening and is always kept in sealing contact with the ship structure platform.
Preferably, the pin opening is arranged at the bottom of the outer side wall of the structure box body.
Preferably, the lower locking structure is secured snugly above the lower support structure.
Preferably, a manhole cover is arranged on the ship body structure platform.
The invention has the advantages that when the propeller breaks down, the underwater part of the propeller does not need to be dismantled, but only the propeller needs to be retracted, and the propeller can be overhauled by personnel entering the ship structure platform, thereby greatly reducing the cost of failure maintenance of the propeller; and because the system is provided with the watertight cover plate, the seawater pump and the like, the watertightness can be ensured, and the safety of workers is ensured. Therefore, the invention has the advantage of small draught of the conventional telescopic thruster, and simultaneously has the characteristics of convenient maintenance, thereby improving the efficiency of marine operation of ships or marine engineering for long-time marine operation.
Drawings
FIG. 1 is a schematic view of a propeller mounting area of the present invention;
FIG. 2 is a schematic view of a structural box of the present invention;
FIG. 3 is a schematic view of a structural box of the present invention with a propeller attached;
FIG. 4 is a schematic view of the present invention with the structural casing attached to the propeller positioned within the propeller mounting area and with the underwater portion of the propeller extended;
FIG. 5 is a schematic view of the present invention with the structural casing with the propeller attached disposed within the propeller mounting area and the propeller partially retracted underwater but without closing the watertight cover;
FIG. 6 is a schematic view of the present invention with the structural casing with the propeller attached disposed within the propeller mounting area and the propeller partially retracted and the watertight cover closed;
figure 7 is a top view of the hull structure platform of the present invention.
In the figure, 1, a ship structure, 2, a ship structure platform, 21, a circular opening, 22, a manhole cover, 3, an axial guide structure, 4, an upper locking structure, 5, a lower locking structure, 6, a lower supporting structure, 7, a circular cylinder, 8, a limiting guide structure, 9, a pin, 10, a propeller underwater part, 11, a hydraulic lifting cylinder, 12, a watertight cover plate, 13, a watertight cover plate hydraulic cylinder, 14, a propeller installation area, 15 and a straight ladder.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 7, firstly, a space for installing a propeller and a structure box is dug out from a ship structure 1 at a ship body propeller installation position, and the space is a propeller installation area 14; the space can be a circular section or a polygonal section, the content of the invention takes a four-section as an example, and the scheme of adopting other sections is basically the same as the content of the invention.
This space will be used for when propeller and structure box are out of work, retrieve the deposit in the hull through hydraulic lifting cylinder 11. Therefore, the space needs to meet the requirement that the propeller and the structural box body are all recovered to the interior of the ship body for storage; in addition, a necessary seawater pump is required to be arranged in the space for emptying seawater in the space, and an air pipeline is used for ventilation in the space, so that the situation that when the propeller and the structure box move in the ship body, internal pressure is generated in the space to influence the movement of the propeller and the structure box is avoided; at the same time, the hull structure 1 is also provided with a passage (not shown in the figure) with a closed valve for entering the space, the passage communicating the maintenance room with the space; also provided are a vertical ladder 15 and a manhole cover 22 for personnel to enter any position in the space.
The structural box body for mounting the propeller needs to move inside and outside the ship body, so the structural box body needs to be an independent box-type structure, the structural section form is basically similar to the section form of a space structure dug inside the ship body, and if the section of the space structure dug inside the ship body changes, the section of the structural box body also changes along with the change. The invention takes a square as an example, the lower part of a structural box body is of a square structure, and the structural content is related to water-borne equipment for arranging and installing a propeller.
A circular cylinder 7 is arranged above the structural box body, the circular cylinder 7 is used as a channel for connecting the propeller with the outside, such as a cable, a hydraulic pipeline, a lubricating oil pipeline and the like which need to enter the structural box body of the propeller through the circular cylinder 7; in addition, the circular cylinder 7 is also used as a lifting channel for disassembling and maintaining equipment in the propeller ship body. The limiting guide structures 8 are arranged at four corners above the structure box body, the structure is matched with the axial guide structures 3 on the ship body, the propeller and the structure box body can be reduced as far as possible to shake when the ship body moves, so that the safety of the hydraulic lifting cylinder 11 when the propeller and the structure box body are lifted or placed is improved, and the reliability of the sealing device between the circular cylinder body 7 and the ship body structure platform 2 is also improved.
The lower part of the structure box body is provided with a hydraulically driven pin 9, when the propeller and the structure box body extend out of the ship body or are recovered into the ship body, the hydraulically driven pin 9 is matched with the corresponding lower locking structure 5 and the upper locking structure 4 on the ship body to lock the propeller and the structure box body on the ship body.
The center of the hull structure platform 2 is provided with a circular opening 21; the circular cylinder 7 passes through the circular opening 21 and is always kept in sealing contact with the ship structure platform, and specifically a sealing device is arranged between the circular cylinder 7 and the ship structure platform 2. The sealing device has the advantages that when the hydraulic water sealing cover under the ship body is opened, and the propeller and the structure box body move, seawater outside the ship body cannot enter the inside of the ship body from the space between the circular cylinder 7 and the ship body structure 1, so that equipment in the ship body and the propeller structure box body cannot be damaged by the seawater. The sealing device is similar to an external sealing cover plate of a conventional hydraulic oil cylinder in structural form, and the relevant standards of the sealing cover plate of the conventional hydraulic oil cylinder can be referred in the design and processing processes.
One end of a hydraulic lifting cylinder 11 for moving the propeller and the structural box body in the ship body is arranged on the ship body structure 1, the other end of the hydraulic lifting cylinder is arranged on the propeller and the structural box body, the hydraulic lifting cylinder 11 partially needs to penetrate through the ship body structure platform 2, and the penetrating position needs to be subjected to watertight treatment, so that seawater can not enter the ship body through the penetrating position.
The position of the ship body corresponding to the position of the limit guide structure 8 on the propeller structure box body is provided with the axial guide structure 3, and the structure is matched with the limit guide structure 8 on the propeller structure box body, so that the forward and backward and left and right shaking of the propeller and the structure box body in the moving process of the lifting hydraulic cylinder is reduced. The safety and reliability of the sealing device between the lifting hydraulic cylinder and the circular cylinder 7 and the ship structure platform 2 are improved.
The bottom of the ship body is provided with a lower supporting structure 6, the supporting structure is used for supporting a propeller and a structure box body when the structure box body is lowered to the ship body, and meanwhile, the upper part of the supporting structure is provided with a sealing washer; the advantage of accomplishing the watertight in this position is that after propeller and structure box are transferred to the hull outside, the sea water that has entered into the hull is pumped out with the sea water pump, and personnel can get into propeller installation box and hull structure 1 middle region through arranging manhole cover 22 on hull structure platform 2 and install straight ladder 15 on the hull, carry out the structure in this region and install hydraulic watertight apron 12 in lower part bearing structure 6 upper portion and inspect or maintain.
A hydraulically driven watertight cover plate 12 is arranged above the lower supporting structure 6, the watertight cover plate 12 is opened and closed through a watertight cover plate hydraulic cylinder 13, and the watertight cover plate 12 is in watertight contact with the lower supporting structure 6 of the ship body, so that seawater outside the ship body cannot enter the ship body; the cover plate has the main functions that when a propeller breaks down, the propeller is pulled into the hull through the hydraulic lifting cylinder 11, the water-tight cover plate 12 is used for covering an opening at the bottom of the hull, external seawater is blocked to enter the hull, then a seawater pump is used for completely pumping the seawater entering the hull, and personnel can enter the middle area between the propeller mounting box body and the hull structure 1 through the manhole cover 22 arranged on the hull structure platform 2 and the straight ladder 15 arranged on the hull to carry out troubleshooting or maintenance on the propeller.
Because the propeller needs 360 degrees of full rotation when working, and simultaneously can also produce very big moment of torsion, if not restricting it, the moment of torsion that produces when the propeller works will be transmitted to hull structure 1 on upper portion through the structure box, and structure box and hull structure 1 on upper portion are connected through hydraulic lift cylinder 11 and circular cylinder 7, if do not carry out necessary restriction to the lower part, this moment of torsion power will cause the damage to hydraulic lift cylinder 11 and circular cylinder 7, can also influence the watertight effect of installing at the sealing device between circular cylinder 7 and hull structure platform 2 simultaneously. In order to avoid the problem, a lower locking structure 5 is arranged above the lower supporting structure 6, a hydraulically driven pin 9 is arranged at the lower part of the box body of the propeller structure and is aligned with the lower locking structure 5 on the ship body, and after the underwater part 10 of the propeller extends out of the ship body through a hydraulic lifting cylinder 11, the hydraulically driven pin 9 arranged on the box body of the propeller structure extends out and is inserted into a pin hole of the lower locking structure 5, so that the propeller, the box body of the propeller structure and the ship body are locked. The torque forces generated by the propeller during operation will be transmitted to the hull via the hydraulically driven pin 9 and not to the upper hydraulic lift cylinder 11 and the cylinder 7.
After the propeller and the structure box are recovered into the ship body, although the propeller does not work, the propeller and the structure box are still connected with the ship body only through the hydraulic lifting cylinder 11 and the upper circular cylinder 7, and most structures of the propeller and the installation box are in a suspension state, when the ship or ocean engineering is transversely inclined or longitudinally shaken under the action of sea waves, the propeller and the structure box can swing along with the ship body, so that a very large load can be generated on the hydraulic lifting cylinder 11 connected with the ship body and the upper circular cylinder 7, the load can possibly cause the damage of the hydraulic lifting cylinder 11 or the upper circular cylinder 7, and even the damage of a sealing device between the upper circular cylinder 7 and the ship body structure platform 2. In view of the above problems, the present invention has the structure that the propeller and the structure box are all recovered in the hull, the upper locking structure 4 is arranged on the hull at the position corresponding to the hydraulically driven pin 9, when the propeller and the structure box are recovered in the hull, the hydraulically driven pin 9 is started, the hydraulically driven lock installed on the structure box is extended and inserted into the pin hole of the lower locking structure 5, thereby realizing the locking of the propeller and the structure box with the hull. The torque forces generated by the propeller during operation will be transmitted to the hull via the hydraulically driven pin 9 and not to the upper hydraulic lift cylinder 11 and the cylinder 7. Thereby protecting the upper hydraulic lift cylinder 11 and the cylinder 7 and the sealing means.
When the invention is used, the structure box body is lowered to touch the lower supporting structure 6 through the hydraulic lifting cylinder 11 and is limited by the lower supporting structure 6 to stop moving, the underwater part 10 of the propeller is just exposed out of the ship completely, and the structure box body and the propeller can be fixed with the lower locking structure 6 by controlling the pin 9 of the structure box body to extend through the hydraulic cylinder; the underwater portion 10 of the propeller can now be operated.
When the propeller is recovered, the structure box body is lifted to touch the ship structure platform 2 through the hydraulic lifting cylinder 11 and is limited by the ship structure platform 2 to stop moving, and the underwater part 10 of the propeller is completely recovered into the ship; the structure box body and the propeller can be fixed by controlling the pin 9 of the structure box body to extend out through the hydraulic cylinder; the watertight cover 12 can now be closed; after which personnel can enter the thruster mounting area 14 and make repairs through the manhole cover 22 and the vertical ladder 15.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. A retractable thruster system capable of being maintained in a ship is characterized by comprising a thruster mounting area dug at the bottom of a ship body and communicated with the outside at the bottom end, and a structural box body used for fixing a thruster and arranged in the thruster mounting area; the lower part of the propeller is a propeller underwater part which is exposed out of the ship and plays a role in propelling;
the middle upper part of the side wall of the propeller mounting area extends inwards to vertically extend out of a ship structure platform; the structure box body is connected to the top surface of the propeller mounting area through a hydraulic lifting cylinder penetrating through the ship body structure platform; a lower supporting structure vertically extends from the bottom of the side wall of the propeller mounting area;
the outer wall of the structural box body is provided with a pin driven by hydraulic pressure; an upper locking structure and a lower locking structure are arranged on the side wall of the mounting area of the thruster, and pin openings corresponding to the pins are formed in the upper locking structure and the lower locking structure;
the bottom of the propeller mounting area is connected with a watertight cover plate, and the watertight cover plate is connected with a watertight cover plate hydraulic cylinder; the watertight cover plate hydraulic cylinder controls the opening and closing of the watertight cover plate;
when the structure box body descends to touch the lower supporting structure and is limited by the lower supporting structure to stop moving, the underwater part of the propeller is just exposed out of the ship completely, and the position of a pin hole in the lower locking structure is just corresponding to the position of the pin;
when the structure box body rises to touch the ship structure platform and is limited by the ship structure platform to stop moving, and the underwater part of the propeller is just completely retracted into the ship, the position of a pin hole in the upper locking structure corresponds to the position of the pin, and the watertight cover plate is positioned below the underwater part of the propeller when the structure box body is closed;
a seawater pump for discharging seawater out of the propeller mounting area is further arranged in the propeller mounting area;
the ship body structure platform is connected to a maintenance room through a personnel channel arranged on the ship body;
and a straight ladder for people to use is erected from the hull structure platform to the lower supporting structure.
2. The marine serviceable telescopic thruster system according to claim 1, wherein a side wall of the thruster mounting area is provided with an axial guiding structure limiting the movement of the structural box towards a direction perpendicular to the side wall of the thruster mounting area.
3. The marine serviceable telescopic thruster system of claim 1, wherein the top of the structural box is a circular cylinder parallel to the side walls of the thruster mounting area; the center of the ship structure platform is provided with a circular opening; the circular cylinder penetrates through the circular opening and is always kept in sealing contact with the ship structure platform.
4. The marine serviceable telescopic thruster system according to claim 1, wherein said pin ports are provided at the bottom of the outer side wall of said structural box.
5. The marine serviceable telescopic thruster system according to claim 4, wherein the lower locking structure is secured snugly above the lower support structure.
6. The marine serviceable telescopic thruster system according to claim 1 or 3, wherein a manhole cover is provided on the structural platform of the hull.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910975498.6A CN110758702A (en) | 2019-10-15 | 2019-10-15 | Retractable thruster system capable of being maintained in ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910975498.6A CN110758702A (en) | 2019-10-15 | 2019-10-15 | Retractable thruster system capable of being maintained in ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110758702A true CN110758702A (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910975498.6A Pending CN110758702A (en) | 2019-10-15 | 2019-10-15 | Retractable thruster system capable of being maintained in ship |
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| Country | Link |
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| CN (1) | CN110758702A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044195A (en) * | 2021-03-09 | 2021-06-29 | 连云港鸿云实业有限公司 | Permanent magnet motor propulsion device for pure electric full-rotation tug |
| CN113120205A (en) * | 2021-04-23 | 2021-07-16 | 中船黄埔文冲船舶有限公司 | Lifting control system of bow auxiliary pushing device |
| CN114590383A (en) * | 2022-02-24 | 2022-06-07 | 中国人民解放军海军工程大学 | Shaftless propulsion system integrated on aircraft shell and control method thereof |
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| US2466635A (en) * | 1945-02-27 | 1949-04-05 | British Motor Boat Mfg Company | Screw propeller steering and depth regulation apparatus |
| NO148257B (en) * | 1977-09-19 | 1983-05-30 | Schottel Nederland Bv | Pivotal Propeller Assembly. |
| CN102341301A (en) * | 2009-03-05 | 2012-02-01 | 毕肯芬兰有限责任公司 | Service space for a retractable propulsion device or corresponding |
| CN103204231A (en) * | 2012-01-16 | 2013-07-17 | 上海振华重工(集团)股份有限公司 | Telescopic full-revolving propeller |
| CN104169166A (en) * | 2012-03-16 | 2014-11-26 | 毕肯芬兰有限责任公司 | Retractable propulsion container with thruster |
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2019
- 2019-10-15 CN CN201910975498.6A patent/CN110758702A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2466635A (en) * | 1945-02-27 | 1949-04-05 | British Motor Boat Mfg Company | Screw propeller steering and depth regulation apparatus |
| NO148257B (en) * | 1977-09-19 | 1983-05-30 | Schottel Nederland Bv | Pivotal Propeller Assembly. |
| CN102341301A (en) * | 2009-03-05 | 2012-02-01 | 毕肯芬兰有限责任公司 | Service space for a retractable propulsion device or corresponding |
| CN103204231A (en) * | 2012-01-16 | 2013-07-17 | 上海振华重工(集团)股份有限公司 | Telescopic full-revolving propeller |
| CN104169166A (en) * | 2012-03-16 | 2014-11-26 | 毕肯芬兰有限责任公司 | Retractable propulsion container with thruster |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044195A (en) * | 2021-03-09 | 2021-06-29 | 连云港鸿云实业有限公司 | Permanent magnet motor propulsion device for pure electric full-rotation tug |
| CN113120205A (en) * | 2021-04-23 | 2021-07-16 | 中船黄埔文冲船舶有限公司 | Lifting control system of bow auxiliary pushing device |
| CN113120205B (en) * | 2021-04-23 | 2022-09-02 | 中船黄埔文冲船舶有限公司 | Lifting control system of bow auxiliary pushing device |
| CN114590383A (en) * | 2022-02-24 | 2022-06-07 | 中国人民解放军海军工程大学 | Shaftless propulsion system integrated on aircraft shell and control method thereof |
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Application publication date: 20200207 |
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