CN113291426B - Push-pull type full navigational speed stabilizer based on gear transmission - Google Patents
Push-pull type full navigational speed stabilizer based on gear transmission Download PDFInfo
- Publication number
- CN113291426B CN113291426B CN202110718832.7A CN202110718832A CN113291426B CN 113291426 B CN113291426 B CN 113291426B CN 202110718832 A CN202110718832 A CN 202110718832A CN 113291426 B CN113291426 B CN 113291426B
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- fin
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- oil cylinder
- pull
- speed
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- 239000003381 stabilizer Substances 0.000 title claims abstract description 55
- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 238000010408 sweeping Methods 0.000 claims abstract description 24
- 230000006641 stabilisation Effects 0.000 claims abstract description 9
- 238000011105 stabilization Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000033001 locomotion Effects 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to a push-pull full navigational speed stabilizer fin based on gear transmission, which consists of a large aspect ratio fin, an underwater supporting section, a fin shaft group, a turning fin mechanism and a sweeping mechanism, wherein the large aspect ratio fin is arranged in an installation space of the underwater supporting section through a fin shaft in the fin shaft group, the fin shaft is connected with the turning fin mechanism, and the turning fin mechanism drives the large aspect ratio fin to rotate under the normal navigational speed working condition so as to realize the normal navigational speed stabilizer; the underwater supporting section is connected with the sweeping mechanism, and under the working condition of zero navigational speed, the sweeping mechanism drives the fin with the large aspect ratio to sweep, so that zero navigational speed stabilization is realized. The push-pull full-speed stabilizer based on gear transmission can improve the zero-speed stabilizer by more than 40% on the premise that the original conventional speed stabilizer, power, weight and cabin size are basically unchanged, and is beneficial to realizing the performance of a novel full-speed stabilizer device.
Description
Technical Field
The invention relates to equipment for reducing ship rolling motion, in particular to a full-speed stabilizer.
Background
The conventional stabilizer device can provide various stabilizer configuration schemes for various ships, the technology is relatively mature, the ship is guaranteed to have good stabilizer requirements at medium/high speed, but the stabilizer requirements for low speed and even zero speed of the ship are urgent in recent years, so that an integrated stabilizer system combining a stabilizer cabin with a stabilizer fin is developed in China, namely the stabilizer cabin is used for stabilizer at zero speed, the stabilizer cabin and the stabilizer fin are combined for stabilizer at medium/high speed, two independent devices are needed to be designed, installed and maintained, the economy is poor, the space in the cabin is occupied, the whole ship drainage volume is increased, and the navigation resistance is influenced.
Most foreign full-speed stabilizer manufacturers adopt a solution which is improved on the basis of the existing stabilizer to enable the stabilizer to have full-speed stabilizer, namely, the stabilizer adopts a conventional working mode at medium/high speed, and the stabilizer is stabilized by changing the attack angle of the fin and water flow to generate lift force; at zero navigational speed, the stabilizer is switched to a zero navigational speed mode, and the stabilizer is stabilized by driving the fin blade to beat water and by the reaction force generated by the water. In order to achieve the two working conditions, the system is required to provide larger torque and larger rotating speed when the system is designed, which results in that the performance of the equipment is not improved on the original basis, but larger power, weight and cabin occupation space are required to obtain better conventional navigational speed and general zero navigational speed stabilizing effect.
In order to solve the problems of general zero navigational speed effect, large power, weight and cabin occupation of the existing full navigational speed stabilizer, a new full navigational speed stabilizer device needs to be designed, and the conventional navigational speed working condition and the zero navigational speed working condition are separated through two movement axes: under the normal navigational speed, the fin handle is driven by the fin rotating oil cylinder, and the fin handle drives the fin shaft and the fin to rotate, so that the fin generates a certain fluid attack angle, and a stabilizing moment is generated for stabilizing; under zero navigational speed, the fin type with large aspect ratio is adopted to obtain larger lift-drag ratio, the fin is rotated to a proper angle in advance through the fin rotating oil cylinder and kept locked, the retraction oil cylinder drives the gear through the push-pull structure, the gear drives the fin with large aspect ratio after amplifying the push-pull angle, the fin is swept in water by taking the direction perpendicular to the fin as an axis, the fin obtains relative speed with fluid in still water, so that the stabilizer moment is generated, and zero navigational speed stabilizer is realized.
Disclosure of Invention
In order to realize the separation of the conventional navigational speed working condition and the zero navigational speed working condition of the novel full navigational speed stabilizer, and to cooperate with the realization of the zero navigational speed stabilizer working principle of the novel full navigational speed stabilizer, the invention provides the push-pull type full navigational speed stabilizer based on gear transmission, and the novel stabilizer can generate larger zero navigational speed lifting force by redesigning the high aspect ratio fin which is adaptive to the novel full navigational speed stabilizer and has higher lift-drag ratio, so that the novel stabilizer can generate larger zero navigational speed lifting force by overcoming smaller resistance in the process of zero navigational speed stabilizer, and can generate lifting force equivalent to fin type under the conventional navigational speed; the fin handle is driven to rotate through double-cylinder push-pull, the fin handle is connected with a gear transmission group of speed-increasing transmission, the rotation angle and the rotation angular velocity of the fin handle are amplified to the sweep of the fin, and the sweep angle and the sweep angular velocity of the fin with large aspect ratio are improved, so that a larger relative flow velocity is obtained to generate a larger zero navigational speed lift force and lift force action time; by arranging the supporting extension section of the large aspect ratio fin under water, the working radius of the fin during sweeping is enlarged, and the relative flow velocity on the fin is improved, so that larger zero navigational speed lifting force is obtained. Under the conventional navigational speed, the fin rotating handle is driven by the fin rotating oil cylinder which is vertically arranged with the gear transmission group, so that the conventional anti-rolling working condition of the fin and the fin shaft is realized.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the push-pull full navigational speed stabilizer fin based on gear transmission comprises a large-aspect-ratio fin, an underwater supporting section, a fin shaft group, a rotary fin mechanism and a sweeping mechanism, wherein the large-aspect-ratio fin is arranged in an installation space of the underwater supporting section through a fin shaft in the fin shaft group, the fin shaft is connected with the rotary fin mechanism, and the rotary fin mechanism drives the large-aspect-ratio fin to rotate under the normal navigational speed working condition to realize the normal navigational speed stabilizer; the underwater supporting section is connected with the sweeping mechanism, and under the working condition of zero navigational speed, the sweeping mechanism drives the fin with the large aspect ratio to sweep, so that zero navigational speed stabilization is realized.
Further, the large aspect ratio fin and the fin shaft are fastened through taper connection and transmit torque.
Further, the fin turning mechanism comprises a fin turning oil cylinder, a fin turning connecting rod and a fin turning fin handle, wherein the fin turning fin handle is connected with a fin turning shaft through a key, and the fin turning fin handle is connected with the fin turning oil cylinder through the fin turning connecting rod to jointly form a cam mechanism for converting the linear motion of the fin turning oil cylinder into the rotary motion of the fin with the large aspect ratio.
Further, the fin rotating handle is connected with the fin rotating connecting rod in a mode of an earring and a pin, and the fin rotating connecting rod is connected with the fin rotating oil cylinder in a mode of an earring and a pin.
Further, sweep the mechanism and include push-pull hydro-cylinder, sweep the fin handle, acceleration rate gear train, the input shaft of acceleration rate gear train passes through the key connection and sweeps the fin handle, sweep fin handle both ends and articulate a push-pull hydro-cylinder respectively, push-pull hydro-cylinder articulates on the hydro-cylinder mount pad, hydro-cylinder mount pad fixed connection is on the bearing, the moment of torsion output shaft of acceleration rate gear train passes through bolt and underwater support section fixed connection.
Further, the push-pull oil cylinder is hinged with the sweeping fin handle and the push-pull oil cylinder is hinged with the oil cylinder mounting seat through the earrings and the pins.
Furthermore, the push-pull full navigational speed stabilizer based on gear transmission is positioned and installed with the ship body through the supporting seat, fixed through welding is achieved, the large-aspect-ratio fin and the underwater supporting section are located outside the cabin, and other parts are located in the cabin.
The beneficial effects of the invention are as follows:
According to the invention, the retraction shaft of the original retraction type stabilizer is used as the motion shaft for zero navigational speed stabilization, so that the separation of the motion shaft under the working conditions of normal navigational speed and zero navigational speed is realized, and the contradiction between the common full navigational speed stabilizer under different working conditions is avoided; by adopting the fin shape with a large aspect ratio, the function of realizing zero navigational speed stabilization by using the retractable shaft is expanded on the basis of keeping the conventional navigational speed stabilization effect; the fin sweeping speed and the fin sweeping angle under the zero navigational speed working condition are improved by combining the double-cylinder push-pull with the speed increasing gear set, and the novel full navigational speed stabilizer zero navigational speed effect is further improved; by adding the underwater supporting section, the sweep radius of the fin is enlarged when the zero navigational speed is stabilized, the relative flow velocity is further increased, and the zero navigational speed effect is improved.
In summary, the novel full-speed fin stabilizer provided by the invention can improve the zero-speed fin stabilizer by more than 40% on the premise that the original conventional speed fin stabilizer is basically unchanged in power, weight and cabin size, is beneficial to realizing the performance of the novel full-speed fin stabilizer, and has great technical progress, economy and social benefits.
Drawings
FIG. 1 is a front view of a push-pull full speed fin stabilizer structure based on gear transmission of the present invention;
FIG. 2 is a top view of FIG. 1;
Fig. 3 is a cross-sectional view taken along A-A in fig. 2.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1 to 3, the push-pull full navigational speed stabilizer based on gear transmission mainly comprises a large aspect ratio fin 1, a push-pull oil cylinder 2, a sweep fin handle 3, a supporting seat 4, a speed increasing gear set 5, a fin turning oil cylinder 6, a fin turning connecting rod 7, a fin turning fin handle 8, a fin shaft 9, an underwater supporting section 10, an oil cylinder mounting seat 11, a ship body 12 and the like.
In this embodiment, the supporting seat 4 is mainly positioned and installed with the hull 12, and the fixing is realized by welding, so that the large aspect ratio fin 1 and the underwater supporting section 10 are required to be ensured to be partially positioned outside the cabin, and the rest of the components are positioned in the cabin.
The high aspect ratio fin 1 and the fin shaft 9 are connected through taper, fastened and transmit torque, the fin shaft 9 is arranged in the installation space of the underwater supporting section 10, the fin shaft 9 is connected with the fin rotating handle 8 through a key and transmits torque, the fin rotating handle 8 is connected with the fin rotating connecting rod 7, the fin rotating connecting rod 7 is connected with the fin rotating oil cylinder 6 through an earring and a pin, a cam mechanism is formed jointly, and the linear motion of the fin rotating oil cylinder is converted into the rotary motion of the fin under the normal navigational speed working condition, so that the conventional navigational speed stabilization is realized.
The push-pull oil cylinder 2 is hinged with the oil cylinder mounting seat 11 through an earring and a pin, the oil cylinder mounting seat 11 is fixed on the supporting seat 4, the push-pull oil cylinder 2 is hinged with the sweeping fin handle 3 through the earring and the pin, the sweeping fin handle 3 is connected with the speed increasing gear set 5 through a key and transmits torque, and the speed increasing gear set 5 is connected with the underwater supporting section 10 through a bolt and is fixed. During the zero navigational speed working condition, the fin rotating oil cylinder 6 is driven at first, so that the large-aspect-ratio fin 1 is locked through hydraulic pressure after rotating to a proper angle, then a pair of push-pull oil cylinders 2 are driven to move reversely, namely, a piston rod of one cylinder stretches out, a piston rod of the other cylinder withdraws, the sweeping fin handle 3 is driven to perform reciprocating rotary motion, the sweeping angle and the sweeping angular speed are further amplified through the speed increasing gear set 5 through the reciprocating rotary motion, and the underwater supporting section 10 drives the large-aspect-ratio fin 1 through the fin shaft 9 to realize sweeping together. At this time, the large aspect ratio fin 1 has rotated around its own axis by a certain angle, has generated a certain angle of attack with the water flow, has generated a relative velocity with the water flow during the course of sweeping along the vertical axis, and has a condition of generating a lifting force by fluid power, thereby realizing zero navigational speed stabilization.
Claims (5)
1. The push-pull type full navigational speed stabilizer based on gear transmission is characterized in that: the high aspect ratio fin is arranged in an installation space of the underwater supporting section through a fin shaft in the fin shaft group, the fin shaft is connected with the rotating fin mechanism, and the rotating fin mechanism drives the high aspect ratio fin to rotate under the normal navigational speed working condition to realize the normal navigational speed stabilization; the underwater supporting section is connected with a sweeping mechanism, and under the working condition of zero navigational speed, the sweeping mechanism drives the fins with large aspect ratio to sweep, so that zero navigational speed stabilization is realized; the fin turning mechanism comprises a fin turning oil cylinder, a fin turning connecting rod and a fin turning fin handle, wherein the fin turning handle is connected with a fin turning shaft through a key, and the fin turning handle is connected with the fin turning oil cylinder through the fin turning connecting rod to jointly form a cam mechanism for converting the linear motion of the fin turning oil cylinder into the rotary motion of the fin with the large aspect ratio; the sweeping mechanism comprises a push-pull oil cylinder, a sweeping fin handle and a speed increasing gear set, wherein an input shaft of the speed increasing gear set is connected with the sweeping fin handle through a key, two ends of the sweeping fin handle are respectively hinged with one push-pull oil cylinder, the push-pull oil cylinder is hinged on an oil cylinder mounting seat, the oil cylinder mounting seat is fixedly connected on a supporting seat, and a torque output shaft of the speed increasing gear set is fixedly connected with an underwater supporting section through a bolt.
2. The gear-based push-pull full navigational fin according to claim 1, wherein: the large aspect ratio fin and the fin shaft are fastened through taper connection and transmit torque.
3. The gear-based push-pull full navigational fin according to claim 1, wherein: the fin rotating handle is connected with the fin rotating connecting rod and the fin rotating connecting rod is connected with the fin rotating oil cylinder through an earring and a pin.
4. The gear-based push-pull full navigational fin according to claim 1, wherein: the push-pull oil cylinder is hinged with the sweeping fin handle and the push-pull oil cylinder is hinged with the oil cylinder mounting seat through the earrings and the pins.
5. The gear-based push-pull full navigational fin according to any one of claims 1-4, wherein: the push-pull full navigational speed stabilizer based on gear transmission is positioned and installed with the ship body through the supporting seat, and is fixed through welding, so that the large aspect ratio fin and the underwater supporting section are positioned outside the cabin, and the other parts are positioned in the cabin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110718832.7A CN113291426B (en) | 2021-06-28 | 2021-06-28 | Push-pull type full navigational speed stabilizer based on gear transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110718832.7A CN113291426B (en) | 2021-06-28 | 2021-06-28 | Push-pull type full navigational speed stabilizer based on gear transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113291426A CN113291426A (en) | 2021-08-24 |
| CN113291426B true CN113291426B (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110718832.7A Active CN113291426B (en) | 2021-06-28 | 2021-06-28 | Push-pull type full navigational speed stabilizer based on gear transmission |
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| CN (1) | CN113291426B (en) |
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| CN201882239U (en) * | 2010-08-26 | 2011-06-29 | 无锡市东舟船舶附件有限公司 | Rocker arm structure of marine retractable fin stabilizer |
| CN202593819U (en) * | 2012-03-21 | 2012-12-12 | 江苏华阳重工股份有限公司 | Ship fin stabilizer rotating device |
| CN103318384A (en) * | 2012-03-21 | 2013-09-25 | 江苏华阳重工股份有限公司 | Marine fin rotation device of fin stabilizer |
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| GB201811126D0 (en) * | 2018-07-06 | 2018-08-22 | Sleipner Motor As | Boat stabilization system |
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| CN113291426A (en) | 2021-08-24 |
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