CN103895806B - One is split shape bow waterjet boat - Google Patents
One is split shape bow waterjet boat Download PDFInfo
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- CN103895806B CN103895806B CN201410162224.2A CN201410162224A CN103895806B CN 103895806 B CN103895806 B CN 103895806B CN 201410162224 A CN201410162224 A CN 201410162224A CN 103895806 B CN103895806 B CN 103895806B
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- hull
- water
- water inlet
- bow
- screw
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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Abstract
The invention discloses one and split shape bow waterjet boat, this waterjet boat hull comprises in bow, ship and proud stern three parts of tail; The width at the proud the narrowest place of hull tail is narrower 20 centimetres to 40 centimetres than the width of hull the widest part; Splitting the anterior flooding angle of shape bow is 25 °～35 °, and the length of splitting shape bow is ship length 1/4～1/3, splits the bottom surface of shape bow and the bottom surface of hull in one plane; Be equipped with a water inlet at the widest part of splitting two sides of shape bow, water inlet is positioned on the right in the face under hull water line; Water inlet connects water channel, connects sprinkler on water channel, and sprinkler end connects water spray for rudder device; Sprinkler comprises screw, the affixed screw external gear of the most advanced and sophisticated outer shroud of propeller blade, and screw external gear engages with power transmission shaft driving gear, and power transmission shaft driving gear power transmission shaft is connected with engine by reducing gear. The scientific research of this waterjet boat goes out to open more than 50% potentiality of the unhelpful loss main engine power of water screw, for navigation.
Description
Technical field
The invention belongs to a kind of hull, be specifically related to one and split shape bow waterjet boat.
Background technology
The movable body of ocean, the upper and lower various shapes of the inland river water surface, pushes the waterline formation wave making resistance that advances open; PressBoiling water advances, and forms head and hopes that the sky of tail sinking is penetrated component, incremental resistive force meets water; Bow curve spreads to ship,Affect the form drag of inertia motion; Swift running water is punched in and on rudder blade, produces back pull.
After spacious water screw, wash by water from blade tip and a large amount of general loose backflows of blade point, from the principle of work and power, lossMain engine power is more than 50%.
Current international technology level, vessel of displacement draining 1M3, when thrust horsepower 12PS, speed per hour is up to24Km/h, Russia and the United States speedboat draining 1M3, when thrust horsepower 120PS, speed per hour is up to 60Km/h.
Summary of the invention
The object of this invention is to provide one and split shape bow waterjet boat, can scientific research water outlet on movable body loss mainMore than 16% potentiality of acc power; Sprinkler scientific research go out the unhelpful loss main engine power 50% of former spacious water screw withOn; Water spray for rudder device avoid hull rolling that spade rudder causes, jolting to the marine accident of toppling occurs.
For achieving the above object, the technical solution used in the present invention is:
This waterjet boat comprises hull, and hull comprises flatly to be split in shape bow, the trapezoidal ship in linear pattern cross section and shipTail three parts; The hull afterbody width at narrow place is narrower 20 centimetres to 40 centimetres than the width of hull the widest part;Flat to split the anterior flooding angle of shape bow be 25 °～35 °, and flat length of splitting shape bow is ship length1/4～1/3, flatly split the bottom surface of shape bow and the bottom surface of hull in one plane; At the flat shape bow two of splittingThe widest part of individual side is equipped with a water inlet, and water inlet is positioned on the right in the face under hull water line; Water inletMouth connects water channel, connects sprinkler on water channel, and sprinkler end connects water spray for rudder device; Sprinkler comprises spiral shellRevolve oar, propeller blade most advanced and sophisticated outer shroud affixed screw external gear, screw external gear and power transmission shaft driving toothWheel engagement, the power transmission shaft of power transmission shaft driving gear is connected with engine by reducing gear.
Preferably, hull bottom width is 0.8～0.85 times of water plane width.
Preferably, water inlet end face is provided with cross or M shape graticule mesh.
Preferably, water inlet end face is provided with slag curette.
Preferably, in water inlet, before screw, be provided with reducing mechanism.
Preferably, water inlet end face is provided with illiteracy plate.
The beneficial effect that this waterjet boat produces is:
1, the affixed screw external gear of the most advanced and sophisticated outer shroud of propeller blade, screw external gear engages with travelling gear,The arm of force that makes to act on the power on propeller blade is greater than propeller blade point, and engine only needs smallerPower output just can drive screw.
2, hull lines is linear pattern, and the width of the stern of hull is narrower 20 centimetres to 40 lis than hull the widest partRice, waterjet boat and the water surface keep the best depth of parallelism, and no matter waterjet boat travels or stops always parallel with the water surface.
3, hull chassis width is 0.8～0.85 times of water plane width, and the antidumping performance of hull is relatively good.
4, to be provided with flooding angle be the flat shape bow of splitting of 25 °～35 ° to fore-body, flat length of splitting shape bowDegree is ship length 1/4～1/3, flatly splits the bottom surface of shape bow and the bottom surface of hull in one plane, shipBody when navigation, just the wave making resistance, the sky that produce penetrate component, the incremental resistive force that meets water and form drag major partEliminate. Flat the widest part of splitting two sides of shape bow is equipped with a water inlet, and water inlet is positioned at hull and eatsOn underwater right in the face, can reduce more than 20% resistance that meets water, the mechanical force that need not absorb water, current are automaticEnter the work of water channel water screw.
5, sprinkler end connects water spray for rudder device, and water spray swings for rudder device, overcomes torrent and is punched in bladeThe back pull of upper generation, prevents that the marine accidents such as hull is vacillated now to the left, now to the right and the hull that causes of jolting topples from producing,Stability of hull is good, safe.
Brief description of the drawings
Fig. 1 is the main TV structure schematic diagram of an a kind of embodiment who splits shape bow waterjet boat of the present invention.
Fig. 2 is the plan structure schematic diagram of an a kind of embodiment who splits shape bow waterjet boat of the present invention.
Fig. 3 is that the structure of the propeller set of an a kind of embodiment who splits shape bow waterjet boat of the present invention is shownIntention.
Fig. 4 is the stressed schematic diagram of ship's navigation.
Fig. 5 is winch water lift schematic diagram.
Fig. 6 is screw ground-mounted shaft structure schematic diagram
Fig. 7 is hull structural principle schematic diagram.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, specifically real below in conjunction with the present inventionExecute example and corresponding accompanying drawing is clearly and completely described technical solution of the present invention.
With reference to figure 1～Fig. 3, Fig. 1～Figure 3 shows that a kind of enforcement of splitting shape bow waterjet boat of the present inventionThe structural representation of example. In this embodiment, this is split shape bow waterjet boat and comprises hull 1, and hull 1 profile isLinear pattern, hull 1 comprises flatly to be split in shape bow 2, the trapezoidal ship in linear pattern cross section and stern three parts; ShipThe body afterbody width at narrow place is narrower 20 centimetres to 40 centimetres than the width of hull 1 the widest part; Waterjet boat and waterFace keeps the best depth of parallelism, and no matter waterjet boat travels or stop always parallel with the water surface. Establish in hull 1 front portionHaving flooding angle is the flat shape bow 2 of splitting of 25 °～35 °, and flat length of splitting shape bow 2 is hull 1 length1/4～1/3, flatly split the bottom surface of shape bow 2 and the bottom surface of hull 1 in one plane, when hull navigation,Just the wave making resistance, the sky that produce penetrate component, the incremental resistive force that meets water and form drag eliminate. Split shape flatThe widest part of 2 two sides of bow is equipped with a water inlet 3, and water inlet is positioned at splitting under hull 1 water lineOn face, can reduce more than 20% resistance that meets water, the mechanical force that need not absorb water, current enter water channel water automaticallyScrew work. Water inlet 3 connects water channel 4, connects sprinkler 5 on water channel 4, and sprinkler 5 ends connectWater spray is for rudder device 6, and water spray swings for rudder device, overcomes torrent and is punched in the back pull producing on blade, preventsThe marine accidents such as hull vacillates now to the left, now to the right, the hull that causes of jolting topples produce, and stability of hull is good, safetyProperty is high. Sprinkler 5 comprises screw 501, the affixed screw external gear of screw 501 vane tip outer shroud502, screw external gear 502 engages with travelling gear 503, travelling gear 503 by reducing gear with send outMotivation connects, and the arm of force that makes to act on the power on propeller blade is greater than propeller blade point, and engine onlyNeed smaller power output just can drive screw.
In an a kind of flat embodiment who splits shape bow waterjet boat of the present invention, hull 1 bottom width canBe 0.8～0.85 times of water plane width, the antidumping performance of hull is relatively good.
In an a kind of flat embodiment who splits shape bow waterjet boat of the present invention, can on water inlet 3 end facesBe provided with cross or M shape graticule mesh, the foreign material of can riving, stop that foreign material enter water channel.
In an a kind of flat embodiment who splits shape bow waterjet boat of the present invention, can on water inlet 3 end facesBe provided with slag curette, for the moccasin thing adhering on the water inlet end face of pruning.
In an a kind of flat embodiment who splits shape bow waterjet boat of the present invention, water inlet 3 interior, screwsBefore 501, can be provided with reducing mechanism, the larger slag thing that enters water channel is pulverized, with water ejection hull.
In an a kind of flat embodiment who splits shape bow waterjet boat of the present invention, can on water inlet 3 end facesBe provided with illiteracy plate, while stop for hull, prevent that toy and foreign material from entering water channel.
Scientific research thinking of the present invention is as follows:
One, ships navigation principle
The water surface move up and down body and water surface absolute parallel, only overcome the frictional resistance of movable body Wetted Surface and water liquid,The resistance that meets water that the stability of water liquid forms is rived, and neatly is moving advances, and need to study the shipform under water lineWith engineering structure, scientific research goes out to damage the potentiality of host power consumption by mistake.
1, the coefficient of stability of research water liquid.
2, research wave making resistance coefficient.
3, study stressed fluid molecule allocinesis law: identical with Newton's law and inference content thereof, justReaction force and active force non-equivalence, need to pass through many experiments, finds out the characteristics of motion, applies to produce.
4, research spout correction factor: this coefficient and water liquid concentration, temperature, geopotentia, adjustment spout waterLiquid elasticity is relevant, and how research becomes the reaction force of washing by water after spout into the hull equating with backlash waterpowerPropulsive force.
After more than determining, find out accurate functional relation, calculate the Exact Constants definite value of coefficient, warpCross production models tests revise for the production of.
5, as shown in Figure 4: to the water surface, force analysis and merit are thoroughly carried out in move up and down static, the navigation of bodyConsumption analysis is as follows:
1) the resistance F that meets waterMeet: this power is caused by water liquid stability, under movable body water line, has and is equivalent toThe large suffered resistance to water-flow of cross-sectional area stops that movable body advances. Can, by the setting of water inlet, split shape shipFirst to the decomposition of water liquid, can reduce and meet water resistance more than 92%.
2) wave making resistance FEmerging: there is the movable body of suitable momentum, power, speed, push water open and advance, percussion liquidThe reversion of body molecule moves ahead, and gushes and piles in bow, and the resistance of formation is wave making resistance. Research shows, as long as drinking waterLine pontoon bottom surface is plane, splits shape flooding angle bow and can overcome the loss that wave making resistance causes completely.
3) sky is penetrated component FEmpty: be to advance because movable body presses off water, liquid produces reaction force to movable body,Make the movable body head to hope tail sink and form, also can be by parallel hull bottom be set, split shape bow and overcome.
4) the incremental resistive force F that meets waterMeet increasing: movable body head is hoped generation when tail sinks, also can be by parallel ship is setThe end, split shape bow and overcome.
5) form drag FShape: refer to the bow curve of movable body, spread to ship, the punching that met water of half-section hullHit, reduce 1/4 long inertia motion power of hull, also can be by parallel hull bottom be set, split shape bow and overcome.
6) back pull FDraw: be that after internal propeller, swift running water impacts the back pull producing on rudder blade.
7) movable body frictional resistance FRub: movable body and water liquid contact-making surface, the frictional resistance producing when navigation.
8) motor-driven from damaging power consumption WFrom damage: the engineering mechanisms such as general reference speed-changing gear box, the earth's axis, screw rotateTime power consumption.
9) motor-driven wearing and tearing power consumption WWearing and tearing: the power consumption of the generations such as spindle holds, axle sleeve, water seal, oil sealing.
10) transmission power consumption WPass: between finger wheel between cog, shaft coupling, the gap of flat key and between centers etc. damages power consumption.
11) as shown in Figure 5, Figure 6, Fig. 6 is well winch water lift schematic diagram, has increased the arm of force by rocking arm,Thereby save power, inspired by this, function can have been acted on to the blade tip of propeller blade as shown in Figure 6Or beyond blade tip, increase and act on the arm of force of the power on screw, thereby can save function.
Spacious water screw function power-consumption balance is explained:
According to simple lever theory of mechanics: resistanceE× resistance arm L=power F × arm of force power transmission shaft radius r. Such as,Spacious water screw and the power transmission shaft main frame there that coexists often turns and gets function 30 newton, data check, and actual investigation,Scientific experimentation, design data shows, airscrew diameter and power transmission shaft diameter ratio are that 8:1 is to 12:1,30 newton × 1, newton × 8 ≠ 30, i.e. 240 Newton meter ≠ 30 Newton meters, function power consumption imbalance, is to passThe cause that moving axis radius is too short.
People always say that spacious water propeller load is overweight, so with power transmission shaft balance merit amount, i.e. 240 Newton meters/ 8=30 Newton meter, i.e. 30 Newton meter=30 Newton meters, power transmission shaft just can drive spacious water screw to rotate, Datong District all over the world, disappears more than 50% but open water screw ineffective power consumption, unfortunate.
The same, power transmission shaft radius is risen to and is greater than internal propeller radius, function is acted on to internal propellerOn the gear teeth of blade tip outer shroud cylindrical, with internal propeller balancing the load merit amount, just spacious water screw ineffective power consumptionDisappearance host power consumption more than 50% potentiality scientific research out.
12) modern cutter utilizes 3 skies to penetrate component for according to shipbuilding exactly. In the time that hull propeller power is especially big,Water liquid is also especially big to the reaction force of hull, and hull is taken by force the water surface and hike up race, and this hull energy consumption is especially big,Much more a little the volume of goods transported is small, to decorate to carry just to have can't run, and is difficult to travel in billow, and the remaining wave causing causes soonShip damage is serious, also personnel's life is caused to serious threat.
13) propulsion mode of the engineering mechanism such as marine submarine, inflatable boat, according to the shipbuilding of drinking water line style, runsThe power loss that the Yu Lang that gets up causes is very large, wastes energy unlimited.
14) spade rudder is without rudder bearer, between upper, middle rudder bearer, attaches most importance to and splits, and middle rudder bearer is fulcrum, through the axle of rudder bladeSection is the arm of force, causes hull rolling, jolts and even topple during with rudder, forms marine accident.
Known through above force analysis and power consumption analysis, motor-driven from damaging power consumption, the frictional work of hull and water liquidThe friction power loss of consumption, transmission power consumption, engineering structure and the power consumptions such as resistance power consumption that meet water are necessary power consumptions, can onlyIn processing and manufacturing process, reduce by improving the ways such as technique; Wave making resistance, sky are penetrated component, increment meets waterThe unhelpful power consumption of the generation such as resistance and form drag accounts for main engine power 16%, can be by as shown in Figure 7 flatThe end splits in shape bow, straight lined vessel, stern is eliminated; The design of intake is the right in the face before the widest part under water lineOn can reduce more than 20% resistance that meets water, the mechanical force that need not absorb water, current enter water channel water spiral automaticallyOar work, the unhelpful power consumption that hull causes is eliminated.
As shown in Figure 1 and Figure 2, water spray is a flexible pipe for rudder device, and flexible pipe swings, and changes water spraying direction,Produce reaction force, hull whipping is turned to.
Go up according to this scientific research content, cause creativity and innovation sprinkler, with transmission inside spin after single-stage or twin-stage gearBefore oar, pass through power transmission shaft gearbox, engine.
Patent protection requires:
1, the scientific research theory of project is the most important thing;
2, flat shape bow and the linear hull split;
3, function acts on the sprinkler on blade tip.
Claims (6)
1. split a shape bow waterjet boat, it is characterized in that: this waterjet boat comprises hull (1), hull (1)Comprise and flatly split in shape bow (2), the trapezoidal ship in linear pattern cross section and stern three parts; The narrowest place of sternWidth is narrower 20 centimetres to 40 centimetres than the width of hull (1) the widest part; The described flat shape bow (2) of splittingAnterior flooding angle is 25 °～35 °, and described flat length of splitting shape bow (2) is described hull (1) length1/4～1/3, flatly split the bottom surface of shape bow (2) and the bottom surface of described hull (1) in one plane;Be equipped with a water inlet (3), described water inlet at described flat the widest part of splitting (2) two sides of shape bowMouth is positioned on the right in the face under hull (1) water line; Described water inlet (3) connects water channel (4), described waterThe upper sprinkler (5) that connects in road (4), described sprinkler (5) end connects water spray for rudder device (6); DescribedSprinkler (5) comprises screw (501), the affixed screw of described screw (501) vane tip outer shroudExternal gear (502), described screw external gear (502) engages with power transmission shaft driving gear (503), instituteThe power transmission shaft of stating power transmission shaft driving gear (503) is connected with engine by reducing gear.
2. waterjet boat according to claim 1, is characterized in that: described hull (1) bottom width is0.8～0.85 times of water plane width.
3. waterjet boat according to claim 1 and 2, is characterized in that: described water inlet (3) end faceBe provided with cross or M shape graticule mesh.
4. waterjet boat according to claim 1 and 2, is characterized in that: described water inlet (3) end faceBe provided with slag curette.
5. waterjet boat according to claim 1 and 2, is characterized in that: in described water inlet (3),The front reducing mechanism that is provided with of screw (501).
6. waterjet boat according to claim 1 and 2, is characterized in that: described water inlet (3) end faceBe provided with illiteracy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162224.2A CN103895806B (en) | 2014-04-22 | 2014-04-22 | One is split shape bow waterjet boat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162224.2A CN103895806B (en) | 2014-04-22 | 2014-04-22 | One is split shape bow waterjet boat |
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| Publication Number | Publication Date |
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| CN103895806A CN103895806A (en) | 2014-07-02 |
| CN103895806B true CN103895806B (en) | 2016-06-15 |
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| CN201410162224.2A Expired - Fee Related CN103895806B (en) | 2014-04-22 | 2014-04-22 | One is split shape bow waterjet boat |
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Families Citing this family (1)
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| CN105711792A (en) * | 2016-02-04 | 2016-06-29 | 许爱军 | Ship |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181868A (en) * | 1990-02-06 | 1993-01-26 | Reinhard Gabriel | Jet propulsion device for watercraft, aircraft, and circulating pumps |
| CN2467396Y (en) * | 2001-02-27 | 2001-12-26 | 王子军 | Superlow resistance navigation hull |
| CN102686477A (en) * | 2009-09-08 | 2012-09-19 | 汉堡-哈尔堡技术大学 | Mechanically driven, hubless, high-efficiency ship propulsor |
| CN103192970A (en) * | 2013-04-27 | 2013-07-10 | 鲍小福 | Oar body and screw propeller with same |
| CN203461078U (en) * | 2013-08-27 | 2014-03-05 | 宁波市鄞州发辉机械科技有限公司 | Waterborne propelling device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11278382A (en) * | 1998-03-31 | 1999-10-12 | Hitachi Zosen Corp | Propulsion device for ship |
| KR101067343B1 (en) * | 2010-12-27 | 2011-09-23 | 송경진 | Ship propulsive device |
-
2014
- 2014-04-22 CN CN201410162224.2A patent/CN103895806B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5181868A (en) * | 1990-02-06 | 1993-01-26 | Reinhard Gabriel | Jet propulsion device for watercraft, aircraft, and circulating pumps |
| CN2467396Y (en) * | 2001-02-27 | 2001-12-26 | 王子军 | Superlow resistance navigation hull |
| CN102686477A (en) * | 2009-09-08 | 2012-09-19 | 汉堡-哈尔堡技术大学 | Mechanically driven, hubless, high-efficiency ship propulsor |
| CN103192970A (en) * | 2013-04-27 | 2013-07-10 | 鲍小福 | Oar body and screw propeller with same |
| CN203461078U (en) * | 2013-08-27 | 2014-03-05 | 宁波市鄞州发辉机械科技有限公司 | Waterborne propelling device |
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