CN100418847C - Bionic double tail sterm propeller - Google Patents
Bionic double tail sterm propeller Download PDFInfo
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- CN100418847C CN100418847C CNB2006101511705A CN200610151170A CN100418847C CN 100418847 C CN100418847 C CN 100418847C CN B2006101511705 A CNB2006101511705 A CN B2006101511705A CN 200610151170 A CN200610151170 A CN 200610151170A CN 100418847 C CN100418847 C CN 100418847C
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- main body
- under water
- tail
- sprocket wheel
- caudal peduncle
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Abstract
The present invention provides a kind of bionic double tail stern propeller, which includes one underwater main body, one vehicle body on the underwater main body, two tail handles in the back of the underwater main body, two tail fins, and motor and transmission mechanism on the vehicle body. It features the underwater main body comprising two symmetrically arranged parts with back ends connected tail handles and tail fins successively the vehicle body comprising one reserved floating body and one support connected the underwater main body and the reserved floating body. The present invention has the advantages of fish-imitating propelling, including high efficiency, low noise and less environment disturbance, no bow rolling problem of single tail propelling, and wide application foreground.
Description
(1) technical field
The present invention relates to boats and ships and ocean structure and advance and the manipulation technology apparatus field, the novel bionic double tail sterm propeller that particularly a kind of imitative fish tail advances.
(2) background technology
Ballooning oil prices in the world at present, energy critical shortage, various countries begin competitively to study various ship energy saving measures.According to statistics, in the energy consumption of a conventional carrier, main frame accounts for 65%, and in whole energy consumptions of main frame, and there is the energy of 45%-50% to be used to drive the screw propeller rotation, promotes boats and ships and advance, therefore, propulsion of ship energy-conservation particularly important.In order to improve propulsion coefficient, all be different from the various new and effective propelling unit of conventional screw propeller both at home and abroad, as slow speed of revolution major diameter screw propeller, suitable wake tuning for Controllable Pitch Propeller, shrouded propeller, no tip whirlpool screw propeller and partly submerged propeller etc. in research.In addition because the propelling pattern of aquatic animal has efficiently, at a high speed, high maneuverability, low noise and advantage such as disguised strong, more and more be subjected to people's attention.
One, the imitative fish advantage of propelling pattern of wagging the tail
1. imitative fish propulsion coefficient is than the efficient height of traditional propeller;
2. the relative velocity of imitative angle of rake incoming flow of fish and tail fin is low than the relative velocity of screw propeller, has prevented the cavity of aerofoil like this and has degraded problem;
3. because imitative fish propelling is that empennage is swung by a small margin, can not twine algae, fishnet etc., avoid the damage of propulsive mechanism;
4. the imitative angle of rake noise of fish is lower, better disguised;
5. the imitative angle of rake manoevreability of fish is good.
Two, the problem of the bionical propelling unit existence of single tail fin
1. because the machine fish that single tail fin advances exists the first problem of shaking, certainly will increase the running resistance of machine fish like this, reduce the speed of advance of machine fish;
2. the machine fish ship trajectory instability that single tail fin advances, the accuracy control of machine fish advance route are difficult to be realized;
3. the true fish of the Ships Turning Ability of machine fish in horizontal surface that single tail fin advances are far short of what is expected, particularly close the less machine fish of joint number.
By relatively can obviously finding out, make boats and ships and ocean structure advance just progressively propelling unit to be drawn close toward imitating the fish propelling pattern of wagging the tail just because of the wag the tail various advantages of propelling pattern of imitative fish with the technical personnel of manipulation technology apparatus field, but majority only is the bionical propelling unit of single tail fin at present, and the machine fish that single tail fin advances exists a series of problems such as shaking head, make the urgent hope of people can have a kind of can overcome shake problems such as head safe and reliable, energy-conservation, propulsion coefficient is high, noise is low, the propelling unit little to environmental perturbation.
(3) summary of the invention
The object of the present invention is to provide a kind of rational in infrastructure, safe and reliable, energy-conservation, propulsion coefficient is high, noise is low, the bionic double tail sterm propeller little to environmental perturbation.
The object of the present invention is achieved like this: it comprises main body under water, be arranged on car body on the main body under water, be arranged on two caudal peduncles, tail fins of main body rear side under water and be installed in motor and transmission device on the car body, it is characterized in that described two groups of symmetric arrangement about main body under water, the rear end is connected with caudal peduncle, caudal peduncle and tail fin connect, and car body comprises the deposit buoyancy aid and is connected main body and the pillar of laying in buoyancy aid under water.
The present invention also has some architectural features like this:
1, the rear end of described main body under water is connected by bearing iron hinge with the caudal peduncle front end, and joint is one recessed one protruding semicircle, and main body, caudal peduncle and tail fin are stream line pattern under water;
2, described tail fin is a C shape tail fin, and caudal peduncle and C shape tail fin connect by caoutchouc elasticity;
3, described transmission device comprises chain wheel pair and piston crank mechanism, chain wheel pair comprises preceding sprocket wheel, back sprocket wheel and chain, piston crank mechanism comprises connecting rod and the pole that is packed on the caudal peduncle, preceding sprocket wheel is connected the back sprocket wheel with motor by chain, back sprocket wheel by bearing installation the deposit buoyancy aid rotating shaft on, connecting rod and sprocket wheel, pole are hinged, and back sprocket wheel connects connecting rod and links to each other with caudal peduncle with pole;
4, described deposit buoyancy aid is an oblong watertight plate, and the rotating shaft in motor, the transmission device is fixed on it and laterally connects on the rod member;
5, described pillar is vertical column, and horizontal slice is the streamline contour of similar ellipse.
The rear end that the present invention is in the main body under water of horizontality is connected with the caudal peduncle hinge, and rigidity caudal peduncle and C shape tail fin elastic coupling.Afterbody swings in horizontal surface, the stream line pattern that main body under water after the connection and afterbody have similar dolphin profile on the whole, and the joint of body rear and caudal peduncle front end adopts one recessed one protruding semicircle under water, even if make this stream line pattern also be maintained in the process that tail fin swings.The deposit buoyancy aid is an oblong watertight plate, laterally connects the chain wheel pair that installs on the rod member in motor, the transmission device, rotating shaft etc. at it.Pillar is vertical column, and horizontal slice is the streamline contour of similar ellipse, is used to connect main body under water and the deposit buoyancy aid that longitudinal axis is parallel to each other.Main body, pillar all can adopt lightweight skeleton and thin plate stressed-skin construction under water.Transmission device adds piston crank mechanism by the chain wheel pair that is similar to Electrical Bicycle to be formed, and sprocket wheel is packed on the deposit buoyancy aid after two.So when the sprocket rotation of the moving back of motor sprocket subband, two tail fins swung about back sprocket wheel disk drove by link work, and can be random phase difference.
The angle of rake design feature of bionic double tail of the present invention:
1, bionic double tail propelling unit, two tail fin inverted wobbles have been offset the side force of tail fin, thereby have avoided the motion of yawing of machine fish, help developing the imitative fish propelling unit of efficient the best, thrust maximum like this, improve the imitative angle of rake tractive power of fish;
2, angle of rake tail fin is a C shape rigidity, caudal peduncle also is a rigid construction, and such tail fin is easy to processing, has also avoided fatigue damage and the marine corrosion problem in the flexible tail fin swing process, the tail fin surface can also be carried out bionical lines and handle, improve the 1ift-drag ratio of tail fin;
3, the sail body coursekeeping of bionic double tail propelling is easy to motion control and positioning control, and in addition, double tail fins can realize that a tail fin is a rudder, and another tail fin swing advances, and the maneuvering performance in the horizontal surface improves greatly.
When the phase difference that the bionical propeller design of the present invention becomes symmetrical couple structure and tail fin to swing is 180 °, can offset side force, guarantee the fore-and-aft stability of whole locomotive body, give full play to that bionical propelling is efficient, peace and quiet and the good characteristics of manoevreability.The technology of the bionical propelling that the present invention proposes, it is innovation to existing traditional principle of propeller, the symmetrical couple structure of forming by the main body and the pillar of small-waterplane-area and add piston crank mechanism by chain and chain wheel pair and promote the tail fin swing, have characteristics such as rational in infrastructure, safe and reliable, efficient energy-saving.Boat experiment has certainly been carried out in the pond of experimental model of the present invention in university, and effect is very desirable.The present invention had both utilized and had brought into play the advantage that imitative fish advances, and had overcome single tail again and had advanced the problem of yawing that exists.Because bionical angle of rake propulsion coefficient height, noise are low, little to environmental perturbation, and it is had broad application prospects.
(4) description of drawings
Fig. 1 is the bionical angle of rake lateral plan of the present invention;
Fig. 2 is the bionical angle of rake birds-eye view of the present invention;
Fig. 3 is bionical angle of rake main body of the present invention and caudal peduncle stream line pattern connection diagram.
(5) specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples:
In conjunction with Fig. 1-3, present embodiment is designed to symmetrical couple structure, comprises by the main body under water 1 of two groups of symmetric arrangement, pillar 2 and deposit buoyancy aid 3 the be rigidly connected car body that forms, two caudal peduncle tail fins 5,6 and a sets of transmission mechanism.Wherein, rear end and the caudal peduncle 5 that are in the main body under water 1 of horizontality are connected by bearing iron hinge, and because the joint of main body 1 rear end and caudal peduncle 5 front ends adopts one recessed one protruding semicircle under water, even if make this stream line pattern also be maintained in the process that caudal peduncle 5 swings, caudal peduncle 5 is connected with tail fin 6 elasticity.Deposit buoyancy aid 3 is oblong watertight plates, laterally connects on the rod member at it to install motor 4, and the chain wheel pair 7,9,13 in the transmission device installs rotating shaft 11,15 on the deposit buoyancy aid.Pillar 2 is vertical column, and horizontal slice is the streamline contour of similar ellipse, is used to connect the main body under water 1 and the deposit buoyancy aid 3 that are parallel to each other.Main body 1 and pillar 2 all can adopt lightweight skeleton and thin plate stressed-skin construction under water.Transmission device comprises motor 4, chain wheel pair and piston crank mechanism, sprocket wheel 7 and back sprocket wheel 9,13 before chain wheel pair comprises, and rotating shaft 11,15, connecting rod 10,14 and pole 12,16 are formed piston crank mechanism; Connecting rod 10,14 and sprocket wheel 9,13 are hinged, and connecting rod 10,14 and pole 12,16 are hinged too; Before sprocket wheel 7 and motor 4 rotates together and drives back sprocket wheels 9,13 by chain 8 and rotate, utilize connecting rod 10,14 and pole 12,16 will after the rotation of sprocket wheel 9,13 change swinging of caudal peduncle into; Change the amplitude of oscillation that connecting rod 10,14 and sprocket wheel 9,13 articulated position can be regulated caudal peduncle, change the hunting frequency of the input voltage regulation caudal peduncle of motor.
Claims (1)
1. bionic double tail sterm propeller, it comprises main body under water, be arranged on the car body on the main body under water, be arranged on two caudal peduncles of main body rear side under water, tail fin and the motor and the transmission device that are installed on the car body, it is characterized in that described two groups of symmetric arrangement about main body under water, the rear end is connected with caudal peduncle, caudal peduncle and tail fin connect, car body comprises the deposit buoyancy aid and is connected main body and the pillar of laying in buoyancy aid under water, install rotating shaft on the deposit buoyancy aid, transmission device comprises chain wheel pair and piston crank mechanism, chain wheel pair comprises preceding sprocket wheel, back sprocket wheel and chain, piston crank mechanism comprises connecting rod and the pole that is packed on the caudal peduncle, preceding sprocket wheel is connected the back sprocket wheel with motor by chain, back sprocket wheel by bearing installation the deposit buoyancy aid rotating shaft on, connecting rod and sprocket wheel, pole is hinged, back sprocket wheel connects connecting rod and links to each other with caudal peduncle with pole, the rear end of main body is connected by bearing iron hinge with the caudal peduncle front end under water, joint is one recessed one protruding semicircle, main body under water, caudal peduncle and tail fin are stream line pattern, tail fin is a C shape tail fin, and caudal peduncle and C shape tail fin connect by caoutchouc elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101511705A CN100418847C (en) | 2006-12-20 | 2006-12-20 | Bionic double tail sterm propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101511705A CN100418847C (en) | 2006-12-20 | 2006-12-20 | Bionic double tail sterm propeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1986330A CN1986330A (en) | 2007-06-27 |
| CN100418847C true CN100418847C (en) | 2008-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101511705A Expired - Fee Related CN100418847C (en) | 2006-12-20 | 2006-12-20 | Bionic double tail sterm propeller |
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| Country | Link |
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| CN (1) | CN100418847C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806985B (en) * | 2011-05-31 | 2014-10-29 | 上海斯达瑞船舶海洋工程服务有限公司 | Bionic robot fish ship propulsion structure |
| CN104203739A (en) * | 2012-01-18 | 2014-12-10 | 莫乔海事有限公司 | Ship with a detachable hull |
| CN104554682B (en) * | 2015-01-28 | 2017-02-22 | 中国科学技术大学 | Area-controllable underwater bionic propelling device |
| CN104670449B (en) * | 2015-01-30 | 2017-01-04 | 哈尔滨工程大学 | Bionical pair of tail-rotor of swing cover type |
| CN106275338B (en) * | 2016-09-30 | 2019-01-11 | 中国科学技术大学 | A kind of double tail fins bionic machine fish based on crank block slider structure |
| CN106428436A (en) * | 2016-10-18 | 2017-02-22 | 中交第二航务工程局有限公司 | Offshore overwater operation platform |
| CN109835455B (en) * | 2019-01-21 | 2020-03-17 | 西安交通大学 | Flexible tail fin-imitating propeller driven by link mechanism |
| CN110605943A (en) * | 2019-10-22 | 2019-12-24 | 哈尔滨工程大学 | Bionic amphibious propeller |
| CN113306717B (en) * | 2021-07-09 | 2022-11-22 | 安徽维统航空装备有限公司 | Fast advancing rudder of large amphibious aircraft |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000219195A (en) * | 1999-01-28 | 2000-08-08 | Yanase & Assoc:Kk | Propulsion board by fin |
| JP2002337788A (en) * | 2001-05-21 | 2002-11-27 | Koji Kajiyama | Underwater propeller |
| US6964589B1 (en) * | 2005-03-15 | 2005-11-15 | Roger Lin | Sculling boat assembly |
| DE202006007150U1 (en) * | 2006-05-04 | 2006-08-24 | Big Ingenieurgesellschaft Mbh Bitterfeld | Combi-catamaran for leisure and sporting use on inland waters has reinforced fiberglass plastic resin double hulls, frame joined by clamp connections, pedal operated bionic fin drive, single blade steering rudder for manual operation |
-
2006
- 2006-12-20 CN CNB2006101511705A patent/CN100418847C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000219195A (en) * | 1999-01-28 | 2000-08-08 | Yanase & Assoc:Kk | Propulsion board by fin |
| JP2002337788A (en) * | 2001-05-21 | 2002-11-27 | Koji Kajiyama | Underwater propeller |
| US6964589B1 (en) * | 2005-03-15 | 2005-11-15 | Roger Lin | Sculling boat assembly |
| DE202006007150U1 (en) * | 2006-05-04 | 2006-08-24 | Big Ingenieurgesellschaft Mbh Bitterfeld | Combi-catamaran for leisure and sporting use on inland waters has reinforced fiberglass plastic resin double hulls, frame joined by clamp connections, pedal operated bionic fin drive, single blade steering rudder for manual operation |
Non-Patent Citations (2)
| Title |
|---|
| 一种仿生水下机器人的研究进展. 成巍，苏玉民，秦再白，万磊，徐如玉.船舶工程，第26卷第1期. 2004 |
| 一种仿生水下机器人的研究进展. 成巍，苏玉民，秦再白，万磊，徐如玉.船舶工程，第26卷第1期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1986330A (en) | 2007-06-27 |
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Granted publication date: 20080917 Termination date: 20101220 |