CN108820175B - Cutting type anti-winding marine propeller - Google Patents
Cutting type anti-winding marine propeller Download PDFInfo
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- CN108820175B CN108820175B CN201810611526.1A CN201810611526A CN108820175B CN 108820175 B CN108820175 B CN 108820175B CN 201810611526 A CN201810611526 A CN 201810611526A CN 108820175 B CN108820175 B CN 108820175B
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- Prior art keywords
- propeller
- sawtooth
- cover
- paddle
- blade
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/26—Blades
-
- 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
- B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
- B63H5/165—Propeller guards, line cutters or other means for protecting propellers or rudders
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Prevention Of Electric Corrosion (AREA)
- Sawing (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Toys (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Abstract
The invention relates to a propelling device used for a ship in water, in particular to a cutting type anti-winding marine propeller, which comprises a propeller and a stern shaft, wherein the propeller is arranged on the propeller; the propeller comprises blades and a hub; the guide edge of the paddle is provided with paddle sawteeth and a sawtooth cover which covers the paddle sawteeth and is in sliding connection with the guide edge; and a driving device for controlling the sawtooth cover to slide on the guide edge and be accommodated in the accommodating cavity is arranged in the propeller hub. The invention has the beneficial effects that: the blade sawteeth are arranged on the blade guide edge, so that the wound objects can be cut by the rotation of the propeller while the propeller rotates, and the normal operation of the propeller can be ensured in the normal navigation of the ship by arranging the saw tooth cover, so that the problem that the normal operation of the ship is influenced by a large amount of cavitation bubbles generated by the propeller due to the irregularity of the saw tooth shape of the blade is avoided; the retraction of the sawtooth cover is controlled by additionally arranging a driving device in the propeller hub.
Description
The invention patent with the application date of 2017-09-20 and the application number of 201710849328.4 and named as a propeller protection device is a divisional application of a parent case.
Technical Field
The invention relates to a propeller protection device for various ships running in water, in particular to a marine propeller protection and propulsion device which is wound or blocked by various winding objects, and particularly relates to a cutting type anti-winding marine propeller.
Background
The propeller itself causes unpredictable serious consequences to marine organisms such as divers, frogmans, seal dolphins and the like, an effective solution does not exist at home and abroad at present, the marine environment is continuously worsened along with the progress of modern marine activities, garbage floaters in the sea are increased, and when a ship sails in water, the propeller of the ship is easily wound by floaters (such as waterweeds, fishing nets, cables and the like) in the water, so that the normal work of the propeller is influenced. Sometimes, the power of the ship is lost, and a major accident is caused, so an effective solution is urgently needed based on the above situation.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provided is a cutting type anti-winding ship propeller, which can cut floating objects wound on a propeller and can operate as a normal propeller when no floating objects are wound.
In order to solve the technical problems, the invention adopts the technical scheme that: a cutting type anti-winding marine propeller comprises a propeller and a stern shaft, wherein the propeller and the stern shaft form an integrated marine propeller; one end of the stern shaft extends into the beauty frame to be connected with the middle shaft, and the other end of the stern shaft is fixed with the propeller;
The propeller comprises blades and a hub; the guide edge of the paddle is provided with paddle sawteeth and a sawtooth cover which covers the paddle sawteeth and is in sliding connection with the guide edge; the propeller hub is internally provided with a driving device which controls the sawtooth cover to slide on the guide edge and is accommodated in the accommodating cavity, and the propeller hub is also internally provided with an accommodating cavity for accommodating the sawtooth cover and the driving device.
Furthermore, a sawtooth table is further arranged on the guide edge, sawteeth of the paddle are connected to the paddle through the sawtooth table, sliding grooves for sliding of the sawtooth cover are formed in two sides of the sawtooth table, and protrusions matched with the sliding grooves are formed in the inner side wall of the sawtooth cover; the radial section of the protrusion is T-shaped, the chute is an accommodating groove with the section of an opening space matched with the T-shaped protrusion being T-shaped, the thickness of the sawtooth table is smaller than that of the paddle, and the thickness of sawteeth of the paddle is smaller than that of the sawtooth table; the length of the sawtooth cover is longer than that of the blade sawtooth table.
Furthermore, an opening for the saw tooth cover to enter and exit is formed in the accommodating cavity, and the cross section of the opening is the same as the radial cross section of the saw tooth cover.
furthermore, a spring is arranged in the accommodating cavity, one end of the spring is connected with the sawtooth cover, and the other end of the spring is fixed at the bottom of the accommodating cavity.
furthermore, the driving device comprises a motor and a motor shaft driven by the motor to rotate, the motor shaft penetrates through the motor body and comprises a fixed end and a driving end which respectively extend out of two ends of the motor body, the driving end is connected with a chain collector, and the chain collector comprises a chain and a reel; one end of the chain passes through the opening to be connected with the tail end of the sawtooth cover, and the other end of the chain is fixed on the scroll.
Furthermore, the fixed end of motor shaft is equipped with star gear and electromagnetism locker.
Furthermore, an anti-corrosion interval sealing layer is arranged between the chain collector and the motor on the motor shaft.
Further, the blade direction of the blade sawteeth faces the rotating direction of the propeller when the propeller advances.
The invention has the beneficial effects that: the blade sawteeth are arranged on the blade guide edge, so that the wound objects can be cut by the rotation of the propeller while the propeller rotates, and the normal operation of the propeller can be ensured in the normal navigation of the ship by arranging the saw tooth cover, so that the problem that the normal operation of the ship is influenced by a large amount of cavitation bubbles generated by the propeller due to the irregularity of the saw tooth shape of the blade is avoided; the driving device is additionally arranged in the propeller hub to control the retraction and extension of the sawtooth cover, so that the propeller of the ship can control the shape of the guide edge of the propeller according to the requirement, and the propeller has the advantages of simple structure, thorough cutting, high working efficiency of the propeller and the like, can be applied to various ships, and can prevent the fault caused by the winding of the propeller; the ability of preventing foreign body from winding is improved.
Drawings
FIG. 1 is a schematic view of a cutting type antiwind marine propeller with a closed cover of a propeller blade of the propeller according to an embodiment of the present invention;
FIG. 2 is a schematic structural view illustrating a propeller serrated cover of a cutting type anti-wind marine propeller according to an embodiment of the present invention when being opened;
FIG. 3 is a schematic cross-sectional view of a portion of a propeller blade of a cutting type anti-wind propeller for a ship according to an embodiment of the present invention;
Description of reference numerals:
1. A hub; 2. a propeller blade; 3. a saw tooth cover; 4. blade sawteeth; 5. a protrusion; 6. accommodating grooves; 7. a sawtooth table.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
the most key concept of the invention is as follows: the blade sawteeth are designed on the blade guide edge, so that the floater can be cut; by designing the sawtooth cover, the opening and closing of the sawtooth cover can be controlled according to the requirement; the performance of the propeller is ensured.
Referring to fig. 1 to 3, a cutting type anti-winding marine propeller comprises a propeller and a stern shaft, wherein the propeller and the stern shaft form an integrated marine propeller; one end of the stern shaft extends into the beauty frame to be connected with the middle shaft, and the other end of the stern shaft is fixed with the propeller;
the propeller comprises blades and a hub 1; the guide edge of the paddle is provided with paddle sawteeth 4 and a sawtooth cover 3 which covers the paddle sawteeth 4 and is connected with the guide edge in a sliding way; the propeller hub 1 is internally provided with a driving device which controls the sawtooth cover 3 to slide on the guide edge and is stored in the containing cavity, and the propeller hub 1 is also internally provided with a containing cavity for storing the sawtooth cover 3 and the driving device.
The working process of the invention is as follows: if boats and ships meet the winding of winding in the navigation in-process, through control drive arrangement's work, make sawtooth lid 3 on the paddle leading edge accomodate the intracavity that holds of propeller hub 1, expose paddle sawtooth 4, cut the winding of winding on the screw, wait to cut and finish, after the screw breaks away from the winding, through control drive arrangement, make sawtooth lid 3 get back to on the leading edge of paddle, continue the navigation.
From the above description, the beneficial effects of the present invention are: the blade sawteeth 4 are arranged on the blade guide edges, so that the wound objects can be cut by the rotation of the propeller while the propeller rotates, and the saw tooth cover 3 is arranged, so that the normal operation of the propeller can be ensured in the normal navigation of the ship, and the problem that the normal operation of the ship is influenced by a large amount of cavitation bubbles generated by the propeller due to the irregular shape of the blade sawteeth 4 is avoided; the driving device is additionally arranged in the propeller hub 1 to control the retraction and extension of the sawtooth cover 3, so that the propeller of the ship can control the shape of the guide edge of the propeller according to the requirement, and the propeller has the advantages of simple structure, thorough cutting, high working efficiency of the propeller and the like, can be applied to various ships, and can prevent the fault caused by the winding of the propeller; the ability of preventing foreign body from winding is improved.
Furthermore, a sawtooth table 7 is further arranged on the guide edge, saw teeth 4 of the paddle are connected to the paddle through the sawtooth table 7, sliding grooves for sliding the sawtooth cover 3 are formed in two sides of the sawtooth table 7, and protrusions 5 matched with the sliding grooves are formed in the inner side wall of the sawtooth cover 3; the radial section of the protrusion 5 is T-shaped, the chute is an accommodating groove 6 with the section of an opening space matched with the T-shaped protrusion 5 being T-shaped, the thickness of the sawtooth table 7 is smaller than that of the blade, and the thickness of the sawtooth 4 of the blade is smaller than that of the sawtooth table 7; the length of the sawtooth cover 3 is longer than the length of the blade sawtooth 4 table.
As can be seen from the above description, the sliding grooves for the sliding of the saw tooth cover 3 are provided on the two sides of the saw tooth platform 7, so that the saw tooth cover 3 can be fixed on the sliding grooves, and the blade saw teeth 4 and the saw tooth platform 7 extend along the guide edge to the position close to the blade root where the blade is connected with the hub 1, so that a part of the space for installing the saw tooth cover 3 can be reserved. By arranging the T-shaped sliding groove, the sawtooth cover 3 can be better fixed on the blade sawteeth 4, and the sawtooth cover 3 is prevented from falling off from the propeller blade 2; the thickness of sawtooth platform 7 is less than the thickness of paddle, and the thickness of paddle sawtooth 4 is less than the thickness of sawtooth platform 7, can leave the space for sawtooth cover 3, avoids being greater than blade thickness because of the thickness behind sawtooth cover 3 and the 4 cooperations of paddle sawtooth, and influences the propulsion performance of boats and ships. Through making the length of sawtooth lid 3 be longer than the length of sawtooth platform 7, can make sawtooth lid 3 under the condition that does not open, can form to seal paddle sawtooth 4, sawtooth lid 3 still partly holds the intracavity simultaneously, has guaranteed that sawtooth lid 3 can not because form to seal paddle sawtooth 4 and probably lead to the sawtooth lid 3 with hold the intracavity and have a certain distance to the propulsion performance of screw has been influenced.
The blade sawteeth 4 and the sawtooth platform 7 stop extending when extending to a position close to the blade root along the guide edge, a distance exists between the blade sawteeth 4 and the sawtooth platform 7 and the blade root, and the space occupied by the distance is used for installing the sawtooth cover 3 on the blade sawteeth 4; when the sawtooth cover 3 is closed, a closed space can be formed with the blade guide edge.
Further, an opening for the saw tooth cover 3 to enter and exit is formed in the accommodating cavity, and the cross section of the opening is the same as the radial cross section of the saw tooth cover 3.
As can be seen from the above description, by matching the shape of the accommodating cavity with the shape of the saw-tooth cover 3, the matching increases the air tightness of the accommodating cavity, and can block water outside and prevent water from entering the accommodating cavity; by adding the spring, the saw-tooth cover 3 can be in a stable closed state in daily navigation, and the change of the propelling performance caused by the looseness of the saw-tooth cover 3 is prevented.
Further, hold the intracavity and be equipped with the spring, spring one end links to each other with sawtooth lid 3, and the other end is fixed in the bottom that holds the chamber.
As can be seen from the above description, in the running process of the ship, the sawtooth cover 3 is in a closed state, and the sawtooth cover 3 can be extruded through the spring, so that the tightness of the sawtooth cover 3 is ensured, and the propelling performance of the ship caused by the looseness of the sawtooth cover 3 is prevented from changing. The spring may not be necessary in the accommodating chamber, and a device capable of achieving the same effect as the spring may be used instead of the spring.
Furthermore, the driving device comprises a motor and a motor shaft driven by the motor to rotate, the motor shaft penetrates through the motor body and comprises a fixed end and a driving end which respectively extend out of two ends of the motor body, the driving end is connected with a chain collector, and the chain collector comprises a chain and a reel; one end of the chain passes through the opening to be connected with the tail end of the saw tooth cover 3, and the other end of the chain is fixed on the scroll.
As can be seen from the above description, the driving device comprises the motor, the motor shaft driven by the motor to rotate, and the chain collector and the chain on the motor shaft, and the chain is controlled by controlling the rotation of the motor to control the movement of the saw tooth cover 3, so as to control the retraction of the saw tooth cover 3 into the accommodating cavity, when the blade saw teeth 4 need to be closed by the saw tooth cover 3, the saw tooth cover 3 can be returned to the blade guide edge to close the blade saw teeth 4 only by stopping the power supply and under the action of the spring; and the opening degree of the sawtooth cover 3 can be controlled according to the requirement, so that the sawtooth cover is convenient to use.
the power supply of the driving device can be connected with a ship power supply system through a ship stern shaft part and is supplied by the ship power supply system, or a storage battery can be additionally arranged in the propeller hub 1, and the storage battery is charged through a wireless power supply system and is controlled.
furthermore, the fixed end of motor shaft is equipped with star gear and electromagnetism locker.
As can be seen from the above description, after the saw tooth cover 3 is received in the receiving cavity through the star gear and the electromagnetic locker, the motor shaft is fixed through the cooperation of the star gear and the electromagnetic locker, and the chain collector at the fixed end of the motor shaft is also fixed, so that the saw tooth cover 3 is prevented from rebounding to the blade guide edge due to the elasticity of the spring.
Furthermore, an anti-corrosion interval sealing layer is arranged between the chain collector and the motor on the motor shaft.
As can be seen from the above description, by providing an anti-corrosive spacing layer between the chain catcher and the motor, water penetrating into the bottom opening of the housing chamber can be prevented from entering the motor, corroding the motor.
Further, the blade direction of the blade saw teeth 4 faces the rotation direction of the propeller when the propeller advances.
From the above description, it can be known that the blade of the blade saw teeth 4 rotates in the forward direction of the propeller, that is, when the ship moves forward, the saw teeth cover 3 only needs to be opened, and unnecessary actions are not needed, so that the winding object can be effectively cut, and the ship is convenient to use.
Example 1
referring to fig. 1-3, a cutting type anti-winding marine propeller comprises a propeller and a stern shaft, wherein the propeller and the stern shaft form an integrated marine propeller; one end of the stern shaft extends into the beauty frame to be connected with the middle shaft, and the other end of the stern shaft is fixed with the propeller;
The propeller comprises blades and a hub 1; the guide edge of the paddle is provided with paddle sawteeth 4 and a sawtooth cover 3 which covers the paddle sawteeth 4 and is connected with the guide edge in a sliding way; the propeller hub 1 is internally provided with a driving device which controls the sawtooth cover 3 to slide on the guide edge and is stored in the containing cavity, and the propeller hub 1 is also internally provided with a containing cavity for storing the sawtooth cover 3 and the driving device.
Furthermore, a sawtooth table 7 is further arranged on the guide edge, saw teeth 4 of the paddle are connected to the paddle through the sawtooth table 7, sliding grooves for sliding the sawtooth cover 3 are formed in two sides of the sawtooth table 7, and protrusions 5 matched with the sliding grooves are formed in the inner side wall of the sawtooth cover 3; the radial section of the protrusion 5 is T-shaped, the chute is an accommodating groove 6 with the section of an opening space matched with the T-shaped protrusion 5 being T-shaped, the thickness of the sawtooth table 7 is smaller than that of the blade, and the thickness of the sawtooth 4 of the blade is smaller than that of the sawtooth table 7; the length of the sawtooth cover 3 is longer than the length of the blade sawtooth 4 table.
The sliding groove extends into the accommodating cavity along the direction from the guide edge to the blade root, and the length of the sawtooth cover 3 is longer than that of the blade sawtooth 4. The accommodating cavity is provided with an opening for the saw tooth cover 3 to enter and exit, and the cross section of the opening is the same as the radial cross section of the saw tooth cover 3. The holding cavity is internally provided with a spring, one end of the spring is connected with the sawtooth cover 3, and the other end of the spring is fixed at the bottom of the holding cavity.
The driving device comprises a motor and a motor shaft driven by the motor to rotate, the motor shaft penetrates through a motor body and comprises a fixed end and a driving end which respectively extend out of two ends of the motor body, the driving end is connected with a chain collector, and the chain collector comprises a chain and a reel; one end of the chain passes through the opening to be connected with the tail end of the saw tooth cover 3, and the other end of the chain is fixed on the scroll.
The fixed end of the motor shaft is provided with a star gear and an electromagnetic locker. And an anti-corrosion interval sealing layer is arranged between the chain collector and the motor on the motor shaft. The blade direction of the blade sawteeth 4 faces the rotation direction of the propeller when advancing.
In conclusion, the cutting type anti-winding marine propeller provided by the invention can cut wound objects by the rotation of the propeller while utilizing the rotation of the propeller through the blade sawteeth arranged on the blade guide edge, and can ensure the normal operation of the propeller in the normal navigation of a ship by arranging the sawteeth cover, thereby avoiding the generation of a large amount of cavitation bubbles on the propeller caused by the irregularity of the blade sawteeth shape and further influencing the normal operation of the ship; the driving device is additionally arranged in the propeller hub to control the retraction and extension of the sawtooth cover, so that the propeller of the ship can control the shape of the guide edge of the propeller according to the requirement, and the propeller has the advantages of simple structure, thorough cutting, high working efficiency of the propeller and the like, can be applied to various ships, and can prevent the fault caused by the winding of the propeller; the ability of preventing foreign body from winding is improved.
The T-shaped sliding grooves for the saw tooth covers to slide are additionally arranged on the two sides of the saw tooth table, so that the saw tooth covers can be better fixed on blade saw teeth, and the saw tooth covers are prevented from falling off from the propeller blade; the thickness of paddle sawtooth is less than the thickness of sawtooth platform, can leave the space for the sawtooth lid, avoids being greater than blade thickness because of the thickness behind sawtooth lid and the cooperation of paddle sawtooth, and influences the propulsion performance of boats and ships.
Through making the length of sawtooth lid be good at the length of sawtooth platform, can make the sawtooth lid under the condition of not opening, can form to the paddle sawtooth and seal, the sawtooth lid still has partly at the intracavity that holds simultaneously, has guaranteed that the sawtooth lid can not because form to the paddle sawtooth and seal the sawtooth lid that probably leads to with hold and have a distance between the chamber to the propulsion performance of screw has been influenced.
The opening shape of the accommodating cavity is the same as the radial shape of the sawtooth cover, so that the air tightness of the accommodating cavity is increased by the matching, water can be blocked outside, and the water is prevented from entering the accommodating cavity; through addding the spring, in daily navigation, can make the sawtooth lid be in stable closed state, prevent to arouse the change of propulsion performance because of the not hard up of sawtooth lid.
In the ship operation process, the sawtooth cover is in a closed state, and the sawtooth cover can be extruded through the spring, so that the tightness of the sawtooth cover is ensured, and the ship propulsion performance caused by looseness of the sawtooth cover is prevented from changing. The spring may not be necessary in the accommodating chamber, and a device capable of achieving the same effect as the spring may be used instead of the spring.
The driving device comprises a motor, a motor shaft driven by the motor to rotate, and a chain collector and a chain on the motor shaft, the movement of the chain is controlled by controlling the rotation of the motor, and then the movement of the sawtooth cover is controlled, so that the sawtooth cover is controlled to be collected into the containing cavity; and the opening degree of the sawtooth cover can be controlled according to the requirement, so that the sawtooth cover is convenient to use.
Through star gear and electromagnetic locking ware, can take in the sawtooth lid and hold the intracavity back, through the cooperation of star gear with the electromagnetic locking ware, make the motor shaft fixed, also fixed simultaneously at the chain collector of motor shaft stiff end to avoided because of the elasticity of spring is with the sawtooth lid bullet return to on the paddle guide.
By arranging the anti-corrosion spacing layer between the chain collector and the motor, water permeating into the bottom opening of the accommodating cavity can be prevented from entering the motor to corrode the motor.
The blade edge of the blade sawteeth faces the rotating direction of the propeller when the propeller advances, namely, when the ship advances, only the sawteeth cover needs to be opened, unnecessary actions do not need to be done, and the winding object can be effectively cut, so that the ship is convenient to use.
the above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (2)
1. a cutting type anti-winding marine propeller is characterized by comprising a propeller, wherein the propeller comprises blades and a hub; the guide edge of the paddle is provided with paddle sawteeth and a sawtooth cover which covers the paddle sawteeth and is in sliding connection with the guide edge; the propeller hub is internally provided with a driving device which controls the sawtooth cover to slide on the guide edge and is accommodated in the accommodating cavity, and the propeller hub is also internally provided with an accommodating cavity for accommodating the sawtooth cover and the driving device; a spring is arranged in the accommodating cavity, one end of the spring is connected with the sawtooth cover, and the other end of the spring is fixed at the bottom of the accommodating cavity;
The blade edge direction of the blade sawteeth faces to the rotating direction of the propeller when advancing;
The saw tooth table is further arranged on the guide edge, saw teeth of the paddle are connected to the paddle through the saw tooth table, sliding grooves for sliding of the saw tooth cover are formed in two sides of the saw tooth table, and protrusions matched with the sliding grooves are arranged on the inner side wall of the saw tooth cover; the radial section of the protrusion is T-shaped, the chute is an accommodating groove with the section of an opening space matched with the T-shaped protrusion being T-shaped, the thickness of the sawtooth table is smaller than that of the paddle, and the thickness of sawteeth of the paddle is smaller than that of the sawtooth table; the length of the sawtooth cover is longer than that of the blade sawtooth table.
2. The cut antiwind marine propulsor of claim 1 wherein said receiving cavity is provided with an opening for access of the saw tooth cover, said opening having a cross-sectional shape identical to a radial cross-sectional shape of the saw tooth cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810611526.1A CN108820175B (en) | 2017-09-20 | 2017-09-20 | Cutting type anti-winding marine propeller |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710849328.4A CN107554733B (en) | 2017-09-20 | 2017-09-20 | A kind of Propeller Guard device |
| CN201810611526.1A CN108820175B (en) | 2017-09-20 | 2017-09-20 | Cutting type anti-winding marine propeller |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710849328.4A Division CN107554733B (en) | 2017-09-20 | 2017-09-20 | A kind of Propeller Guard device |
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| Publication Number | Publication Date |
|---|---|
| CN108820175A CN108820175A (en) | 2018-11-16 |
| CN108820175B true CN108820175B (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810611447.0A Active CN108791787B (en) | 2017-09-20 | 2017-09-20 | A kind of adjustable type propeller protective device |
| CN201810611438.1A Active CN108974299B (en) | 2017-09-20 | 2017-09-20 | Accommodating type propeller protection device |
| CN201810611526.1A Active CN108820175B (en) | 2017-09-20 | 2017-09-20 | Cutting type anti-winding marine propeller |
| CN201710849328.4A Active CN107554733B (en) | 2017-09-20 | 2017-09-20 | A kind of Propeller Guard device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810611447.0A Active CN108791787B (en) | 2017-09-20 | 2017-09-20 | A kind of adjustable type propeller protective device |
| CN201810611438.1A Active CN108974299B (en) | 2017-09-20 | 2017-09-20 | Accommodating type propeller protection device |
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| CN201710849328.4A Active CN107554733B (en) | 2017-09-20 | 2017-09-20 | A kind of Propeller Guard device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108791787B (en) * | 2017-09-20 | 2019-08-13 | 航天晨光（福建）管业科技有限公司 | A kind of adjustable type propeller protective device |
| CN108263587B (en) * | 2018-04-03 | 2024-06-25 | 中国科学院大气物理研究所 | Unmanned ship propulsion device with cutting function |
| CN109466733B (en) * | 2018-10-25 | 2020-11-27 | 涡阳县信隆船舶附件有限公司 | Multi-stage remediation control method for propeller incapability |
| CN109178274B (en) * | 2018-11-02 | 2020-07-14 | 东台海工安全科技有限公司 | Marine screw fishing net cutting knife mechanism |
| CN109178273B (en) * | 2018-11-02 | 2020-07-17 | 东台海工安全科技有限公司 | Movably-mounted marine propeller fishing net cutting knife mechanism |
| CN110654518A (en) * | 2019-09-20 | 2020-01-07 | 浙江派尼尔科技股份有限公司 | Screw for preventing fishing net and aquatic plants at water inlet of unmanned intelligent robot |
| CN112693585B (en) * | 2021-01-15 | 2021-10-29 | 中国船舶科学研究中心 | Device for improving root cavitation of propeller for high-speed ship and using method thereof |
| CN116620535B (en) * | 2023-07-24 | 2023-09-22 | 江苏环保产业技术研究院股份公司 | Landscape type floating pontoon water quality monitoring station |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107554733A (en) | 2018-01-09 |
| CN108820175A (en) | 2018-11-16 |
| CN108974299A (en) | 2018-12-11 |
| CN108974299B (en) | 2020-01-07 |
| CN108791787B (en) | 2019-08-13 |
| CN107554733B (en) | 2018-06-19 |
| CN108791787A (en) | 2018-11-13 |
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