CN104670449A - Laterally-split bionic two-tailed paddle unit - Google Patents
Laterally-split bionic two-tailed paddle unit Download PDFInfo
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- CN104670449A CN104670449A CN201510054108.3A CN201510054108A CN104670449A CN 104670449 A CN104670449 A CN 104670449A CN 201510054108 A CN201510054108 A CN 201510054108A CN 104670449 A CN104670449 A CN 104670449A
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- oar
- paddle
- blade
- main shaft
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Abstract
The invention aims to provide a laterally-split bionic two-tailed paddle unit comprising a spindle, a first sub-paddle component and a second sub-paddle component. The spindle is mounted at the tail or on the side of a boat. The end of the spindle is provided with a spindle gear connected with an interior drive system of the boar. The first sub-paddle component comprises at least two paddles; a paddle shaft is mounted along the axis of each paddle; the end of each paddle shaft is provided with a paddle gear. The spindle is provided with paddle shaft holes. The paddles are mounted on the spindle through fitting of the paddle shafts and the paddle shaft holes. A sprocket hydraulically driven is disposed within the spindle. The paddle gears mesh with the sprocket. The second sub-paddle component and the first sub-paddle component are identical in structure. The paddles of the second sub-paddle component are mounted on the spindle in a same way as the paddles of the first sub-paddle component. The laterally-split bionic two-tailed paddle unit has the advantages that by referring to fish tailfins and making use of a high energy area of a trailing vortex, the boat is pushed through rotating of the paddles and is maneuvered; the laterally-split bionic two-tailed paddle unit has lower hydraulic noise, lower mechanical noise and higher propelling efficiency than a propeller and is energy efficient.
Description
Technical field
What the present invention relates to is a kind of ship propulsion system, the specifically oar of boats and ships.
Background technology
Current boats and ships, the propelling unit comprising underwater surface boats and ships and motion carrier mostly adopts screw propeller to rotate the mode of propelling to obtain thrust power.There is following several respects shortcoming in this propulsion mode: one is that propulsion coefficient is not high.Two is that the displacement of screw propeller is little, and obtain larger propulsive force just needs larger rotating speed, and screw propeller can turbulization when High Rotation Speed, causes the waste of energy.Three is that propeller noise that rotating speed is very high is very large, the noise of generation when the rotating speed of screw propeller and propulsion capability are had to reduce to reduce to advance in many fields.
Contrary many marine life have high efficiency travelling ability and stationkeeping ability accurately, most of marine life rely on tail fin, pectoral fin, etc. fin class advance, the mode also having some biologies to move with similar snakeheaded fish in addition obtains propulsive force efficiently.The efficient propulsion coefficient of fish improves propulsion of ship handling to the mankind and brings hope.Since the nineties in 20th century, the development of bionics techniques, computer technology, control technology and material technology, for the research of the operating principle of Bionic impeller, System's composition and the aspect such as realization, control algorithm provides strong support, the angle of rake investigation and application of Novel bionic makes significant progress.
Imitative fish advances research and experiment mainly to carry out mathematical modeling and emulation for fish flexible caudal fin swing swing, achieve some research and Experiment Results, but it is high to implement complexity, be difficult to practical, its subject matter is the contradiction between the complexity of underwater environment and the limitation of math modeling, especially the goal in research of this respect and implementation are all reference with fish, and the alerting ability of material and mechanical device cannot reach the level of biological fish at present.
Summary of the invention
The object of the present invention is to provide and realize swing cover type bionical pair of tail-rotor that thrust is far longer than resistance.
The object of the present invention is achieved like this:
Swing cover type of the present invention bionical pair of tail-rotor, it is characterized in that: comprise main shaft, first sub-oar, second sub-oar, main shaft is arranged on afterbody or the side of boats and ships, the end of main shaft arranges reaction gear, reaction gear is connected with the drive system of boats and ships inside, first sub-oar comprises at least two blades, the axis of blade is installed blade axle, blade gear is installed in the end of blade axle, main shaft is arranged blade axis hole, blade is arranged on main shaft by the cooperation of blade axle and blade axis hole, main shaft inside arranges hydraulically powered sprocket, blade gear engages with sprocket, second sub-oar is identical with the first sub-paddle structure, the blade of the second sub-oar is arranged on main shaft according to the mode identical with the first sub-oar blade.
The present invention can also comprise;
1, the angle that the blade of the first sub-oar and the second sub-oar rotates around its blade axle is 0-90 degree, thus make the first sub-oar and the second sub-oar be in thrust generation state or oar face recoil state two states, and the first sub-oar be in thrust produce state time, second sub-oar is in oar face recoil state, when second sub-oar is in thrust generation state, first sub-oar is in oar face recoil state, the two states of the first sub-oar and the second sub-oar alternately conversion simultaneously.
2, the angle between the first sub-oar and the second sub-oar is 60 degree of-90 degree.
3, main shaft laterally or be vertically arranged on afterbody or the side of boats and ships.
Advantage of the present invention is: the present invention, with reference to fish tail fin, adopts crank motion form, utilizes the high energy region of trailing vortex simultaneously, makes boats and ships obtain thrust by tilting rear rotor oar page and realize the manipulation ability to boats and ships.Lower than the hydrodynamic noise of screw propeller, mechanical noise is lower, propulsion coefficient is higher, economize energy.
Accompanying drawing explanation
Fig. 1 is overall construction drawing of the present invention;
Fig. 2 is the schematic diagram of main shaft when being vertically arranged on boats and ships afterbody;
Fig. 3 is the schematic diagram of main shaft when being laterally arranged on boats and ships afterbody;
Fig. 4 is schematic diagram when the first sub-oar is opened, the second sub-oar cuts out;
Fig. 5 is schematic diagram when the first sub-oar cuts out, the second sub-oar is opened;
Fig. 6 is STRUCTURE DECOMPOSITION schematic diagram of the present invention;
Fig. 7 is main axle structure schematic diagram;
Fig. 8 is blade structural schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
Composition graphs 1 ~ 8, the present invention is made up of two sub-oars, be respectively the first sub-oar 2 and the second sub-oar 4, the two relative position is fixed, and angle theta remains on 60 to 90 degree, with such as Fig. 1 chain lines for axis of symmetry is distributed in main shaft 1 both sides, parallel on every sub-oar some blades 3 are housed, be connected with main shaft 1 by blade axle 6, blade axle 6 top is gear structure, be connected with teeth structure in main shaft 1, to realize blade from 0 degree to 90 degree freely rotate.Main shaft 1 two ends are gear structure, are connected with hull 5, and in hull 5, power hydraulic system back and forth makes wobbling action under driving.Main shaft and each blade can drive by a power hydraulic system, form a multi-input multi-output closed-loop control system in conjunction with the angular transducer on each rotatable parts and control unit.
Specific works state as shown in Figure 4,5, quant produces propulsive force by reciprocally swinging, first sub-oar 2 its blade in progradation closes, rotate backward to produce thrust, in the later stage of progradation, open blade fast, utilize trailing vortex to produce thrust further, when first sub-oar 2 advances, the second sub-oar 4 is in Recovery Process, and its blade is in open mode to reduce to reply resistance in water always; First sub-oar 2 progradation terminates rear pair of tail-rotor and changes swaying direction, second sub-oar 4 enters progradation and the first sub-oar 2 enters Recovery Process, now the blade of the second sub-oar 4 is closed to produce thrust, the blade of the first sub-oar 2 keeps open mode on last stage, to reduce to reply resistance in water, similar to the first sub-oar 2 progradation, it is very little that second sub-oar 4 produces thrust component at the later stage blade of progradation to ship sense of motion, now open the second sub-oar 4 blade fast, and utilize trailing vortex to produce thrust further.So far, two tail-rotor has moved one-period, follow-up reciprocally swinging in this manner.In reciprocally swinging process, two sub-oars are in propelling and Recovery Process respectively, and the two state, with the alternately change mutually of certain phase place beat, makes two tail-rotor have thrust to produce all the time.In addition, in two tail-rotor swing process, the two tail-rotor medium line of adjustment and boats and ships axis angle, as shown in Figure 2, the now swing of two tail-rotor will produce vector and advance effect, and then control motion of ship direction and attitude, realize the function of efficient rudder.
The technical solution adopted in the present invention is: two tail-rotor is made up of two sub-oars, as shown in Figure 1, be respectively the first sub-oar and the second sub-oar, with gear on two tail-rotor main shaft, be installed on afterbody or the side of boats and ships, the hydraulic efficiency pressure system driven gear group of boats and ships inside is rotated and makes two tail-rotor make periodic wobble.Fig. 2 is the vertical mounting means of boats and ships afterbody, and the horizontal mounting means of Fig. 3 boats and ships afterbody, specific works state as shown in Figure 4,5.Two tail-rotor produces propulsive force by reciprocally swinging, during a certain oar face generation thrust, blade closes the later stage being incorporated in progradation and opens blade fast, thrust is produced further to utilize trailing vortex, then two tail-rotor changes swaying direction, the oar face producing thrust proceeds to recoil state immediately, promotes in order to this oar face next time.In above process, another oar face completes thrust equally and produces and oar face Recovery Process, and just two oar faces differ a beat, and time namely an oar face is in the thrust generation stage, another oar face is in recovery stage.Because oar face recovery stage blade is opened, be far smaller than thrust produce the thrust that produces of stage so Recovery Process is subject to resistance.In addition, by adjusting the angle of two tail-rotor medium line and boats and ships head and the tail axis, producing vector and advancing effect, make two tail-rotor play controlling party to the effect with attitude, realize the function of efficient rudder.
The present invention's two sub-oars respectively by some parallel arranged, perpendicular to oar axle and rotatable blade form, the fixed angle between two sub-oars is less than 90 degree, oar axle can vertically or level be arranged on the afterbody of boats and ships, as shown in Figure 2,3;
Quant produces propulsive force by reciprocally swinging, and when oar face produces thrust, blade closes, and when oar face is returned to initial position, blade is opened;
The opportunity can opened by control blade and speed, utilize the counteraction of trailing vortex to produce thrust further;
The section aerofoil profile of blade is stream line pattern;
The medium line of adjustment oar and the angle of boats and ships head and the tail axis, can produce vector and advance effect, make oar play controlling party to the effect with attitude;
Tail-rotor only can have a sub-oar, works independently.
The shape of blade section can be triangle, trapezoidal, the fish tail shape such as rectangle, half moon.
Claims (5)
1. swing cover type bionical pair of tail-rotor, it is characterized in that: comprise main shaft, first sub-oar, second sub-oar, main shaft is arranged on afterbody or the side of boats and ships, the end of main shaft arranges reaction gear, reaction gear is connected with the drive system of boats and ships inside, first sub-oar comprises at least two blades, the axis of blade is installed blade axle, blade gear is installed in the end of blade axle, main shaft is arranged blade axis hole, blade is arranged on main shaft by the cooperation of blade axle and blade axis hole, main shaft inside arranges hydraulically powered sprocket, blade gear engages with sprocket, second sub-oar is identical with the first sub-paddle structure, the blade of the second sub-oar is arranged on main shaft according to the mode identical with the first sub-oar blade.
2. swing cover type according to claim 1 bionical pair of tail-rotor, it is characterized in that: the angle that the blade of the first sub-oar and the second sub-oar rotates around its blade axle is 0-90 degree, thus make the first sub-oar and the second sub-oar be in thrust generation state or oar face recoil state two states, and the first sub-oar be in thrust produce state time, second sub-oar is in oar face recoil state, when second sub-oar is in thrust generation state, first sub-oar is in oar face recoil state, the two states of the first sub-oar and the second sub-oar alternately conversion simultaneously.
3. swing cover type according to claim 1 and 2 bionical pair of tail-rotor, is characterized in that: the angle between the first sub-oar and the second sub-oar is 60 degree of-90 degree.
4. swing cover type according to claim 1 and 2 bionical pair of tail-rotor, is characterized in that: main shaft laterally or be vertically arranged on afterbody or the side of boats and ships.
5. swing cover type according to claim 3 bionical pair of tail-rotor, is characterized in that: main shaft laterally or be vertically arranged on afterbody or the side of boats and ships.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054108.3A CN104670449B (en) | 2015-01-30 | 2015-01-30 | Bionical pair of tail-rotor of swing cover type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510054108.3A CN104670449B (en) | 2015-01-30 | 2015-01-30 | Bionical pair of tail-rotor of swing cover type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104670449A true CN104670449A (en) | 2015-06-03 |
| CN104670449B CN104670449B (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510054108.3A Expired - Fee Related CN104670449B (en) | 2015-01-30 | 2015-01-30 | Bionical pair of tail-rotor of swing cover type |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105173044A (en) * | 2015-10-15 | 2015-12-23 | 哈尔滨工程大学 | Two-degree-of-freedom bionic tail fin |
| CN106428491A (en) * | 2016-10-08 | 2017-02-22 | 郑志刚 | Non-circular gear control type rotary oscillation wing fishtail bionic propeller |
| WO2018094778A1 (en) * | 2016-11-22 | 2018-05-31 | 福建师范大学 | Oar propeller |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2490179A1 (en) * | 1980-09-15 | 1982-03-19 | Bosmorin Rene | Manual propulsion drive for marine vessel - has oar pivoted at stern with blade formed of two pivoted half blades |
| CN100418847C (en) * | 2006-12-20 | 2008-09-17 | 哈尔滨工程大学 | Bionic double tail sterm propeller |
| CN201002714Y (en) * | 2007-01-19 | 2008-01-09 | 哈尔滨工程大学 | Underwater hydrofoil imitation propulsion unit |
| CN100534858C (en) * | 2007-09-25 | 2009-09-02 | 安徽工业大学 | Double-vane propeller |
| CN102320364B (en) * | 2011-06-16 | 2015-07-29 | 李敏华 | A kind of synchronizing propeller device |
| CN104192287B (en) * | 2014-09-09 | 2016-11-23 | 哈尔滨工程大学 | A kind of structure changes wing peculiar to vessel oar |
| CN204548459U (en) * | 2015-01-30 | 2015-08-12 | 哈尔滨工程大学 | Swing cover type bionical pair of tail-rotor |
-
2015
- 2015-01-30 CN CN201510054108.3A patent/CN104670449B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105173044A (en) * | 2015-10-15 | 2015-12-23 | 哈尔滨工程大学 | Two-degree-of-freedom bionic tail fin |
| CN106428491A (en) * | 2016-10-08 | 2017-02-22 | 郑志刚 | Non-circular gear control type rotary oscillation wing fishtail bionic propeller |
| WO2018094778A1 (en) * | 2016-11-22 | 2018-05-31 | 福建师范大学 | Oar propeller |
Also Published As
| Publication number | Publication date |
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| CN104670449B (en) | 2017-01-04 |
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