Single underwater propulsion unit
Technical field
The propelling unit used when the utility model relates to under-water operation, propelling unit used when particularly relating to a kind of single under-water operation.
Background technology
Single under water vehicles all is in the world midget submarine formula mostly at present, the shortcoming of this submarine formula vehicle be handle that underaction, turning function are poor, point-blank encounter under water time easily destroyed, volume is relative with noise is found greatly, easily, to hiddenly slipping into, the operational activity such as surprise attack limits larger.
According to the volume and weight of submarine formula vehicle, small-sized frogman's vehicle and large-scale frogman's vehicle can be divided into again.Small-sized frogman's vehicle volume is little, lightweight, be easy to carry.In general, this kind of frogman vehicle weight≤120kg, cruise duration >=2h, 1 ~ 2 frogman can be delivered at every turn and execute the task with being equipped to destination, carrying platform strong adaptability, and submarine, large-scale frogman's vehicle, surface vessel, civilian ship etc. all directly can carry lift-launch.The sorting technique of small-sized frogman's vehicle has multiple.Military version, civil version and dual-use type can be divided into by field of application; Conveying type, attack and operation type can be divided into by purposes; Submerge type and underwater surface multifunctional then can be divided into by navigation mode; Difference according to propulsion source used can be divided into Electronmotive Force type and mixed motivity type, frogman's vehicle of submerge mode is wherein adopted generally to use the Electronmotive Force energy, and the frogman's vehicle possessing underwater surface 2 kinds navigation mode generally adopts the hybrid power energy, when surface navigation generally using diesel motor as leading engine, to obtain the high speed of a ship or plane, then use electrical motor during submerge state instead as leading engine; Take in space according to frogman and whether intake, " wet type ", " half wet type (or half dry type) " and " dry type " can be divided into, also be called " open ", " hermetic type ".
Although Germany hand-held type underwater propeller SBS730 and SD414 compact, user needs to control this propelling unit by arm and adjusts working direction in traveling process, comparatively requires great effort and to control difficulty higher during use.
Utility model content
For solving the problem that in existing underwater propulsion unit, vehicle volume greatly, is easily destroyed or hand-held type underwater propeller control difficulty is high, the utility model proposes a kind of single underwater propulsion unit, this single underwater propulsion unit comprises impeller, shell, Nei Cang, actuating device and guiding device; Described shell is that two ends are communicated with, the streamlined structure of inner hollow, and the diameter of the entrance point of described shell is greater than the diameter of exit end; Described impeller is the entrance point that hollow screw coil-shape is arranged on described shell; Described interior storehouse is arranged in described shell, and described guiding device is set in the entrance point also near described shell on described interior storehouse; Described actuating device is arranged in described interior storehouse, and the axle drive shaft of described actuating device stretches out from described interior storehouse, is fixedly connected with described impeller.
The single underwater propulsion unit small volume of the utility model, therefore user directly carries on the back on back by backpack strip, when user needs to advance fast under water, open the switch of this propelling unit, make the axle drive shaft of described actuating device start to rotate and drive described impeller to carry out synchronous axial system, high-speed cutting is carried out to the waters near described impeller, the current that cutting is formed enter the driving surface of described impeller from the impeller high speed of coiling, high-velocity flow flows to described guiding device after rotating past impeller, through described guiding device drainage, the high-velocity flow of the rotation entered in this propelling unit is made to become high-speed straight-line current, finally by the exit end ejection at a high speed of described shell, the user being equipped with this propelling unit is made to obtain the thrust advanced at utmost speed, and then arrive destination fast.
The utility model single underwater propulsion unit volume is little, user is easy to carry, even if user carries this propelling unit and fights under water, when meeting with under water, this propelling unit also not easily sustains damage, and user is when needing to turn to, only need adjust oneself health direction, simple to operation, easily carry.
Preferably, described impeller is the impeller of spiral mixed-flow, and the number of the blade of described impeller is 2.When described impeller is the impeller of spiral mixed-flow, described impeller can more easily adapt to underwater complex working environment.And the lobe numbers of described impeller is when being 2; after the interspersed coiling of two blades of impeller; space between two blades can make pasture and water, bulky grain or other foreign material enter smoothly and be ejected from the exit end of described shell; this single underwater propulsion unit can not be blocked; ensure that the reliability of this single underwater propulsion unit, make this single underwater propulsion unit can adapt to the operating environment of more complexity.
Preferably, described guiding device is stator, and described impeller has gap near the side of described shell and described stator between the side of the entrance point of described shell.Current are after entering described impeller, driving surface along described impeller is accelerated by the impeller rotated, then enter in described shell, now current have higher flow velocity, if directly contact with described stator, can produce greater impact to described stator, described gap in order to cushion this impact, thus extends the service life of described stator.Meanwhile, the existence in this gap makes described impeller can not rub with described stator when rotated, decreases the wear pattern of described impeller, extends the service life of described impeller.Further, the span in described gap is 1-5mm.Further, described gap is 2mm.
Preferably, the exit end of described shell is provided with vectored thrust device.Described vectored thrust device can reduce the resistance that this single underwater propulsion unit is subject to when advancing by the acceleration/accel producing different directions, thus reaches the object reducing the energy that this single underwater propulsion unit consumes when accelerating.
Further, described vectored thrust device is trivector thruster.Trivector thruster can make nozzle can be movable in 360 ° of planar circumferential, makes this propelling unit can adapt to break-in and the acceleration of all directions under water.
Preferably, be also provided with baffling device in described interior storehouse, described baffling device is provided with through hole, and the axle drive shaft of described actuating device is fixedly connected with described impeller through this through hole.Described baffling device, in order to prevent actuating device described in the flow direction that enters from described impeller, is avoided described actuating device to intake impaired, is extended the service life of this single underwater propulsion unit.
Further, be provided with bearing in described through hole, the outer ring of described bearing is fixedly connected with described baffling device, and the inner ring of described bearing is fixedly connected with the axle drive shaft of described actuating device.Described bearing directly contacts produced wearing and tearing with described baffling device in order to avoid described axle drive shaft in rotation process, extend the service life of described actuating device, and reduce the power consumed when overcoming contact surface friction force, ensure the durability of this single underwater propulsion unit.
Preferably, described actuating device comprises waterproof DC machine, battery and on-off structure.Described battery is in order to provide power to described waterproof DC machine, and described mechanism for opening/closing controls in order to carry out keying to described waterproof DC machine.Waterproof DC machine possesses that quality is light, rotating speed is fast, the feature that noise is low, is more conducive to user's equipment.
Further, described actuating device also comprises regulating mechanism.Described regulating mechanism in order to regulate the rotating speed of described waterproof DC machine, thus reaches the object regulating this single underwater propulsion unit propulsive force size, adds the alerting ability of this single underwater propulsion unit.
When using the single underwater propulsion unit of the utility model, user can regulate propulsive force size according to different situations, so that user can adapt to more operating environment, simultaneously, this single underwater propulsion unit volume is little, quality is light, noise is low and simple to operation, user can carry with, and uses at any time.
Accompanying drawing explanation
Fig. 1 is the front sectional view of the single underwater propulsion unit of the utility model;
Fig. 2 is the block diagram of the impeller of the single underwater propulsion unit of the utility model;
Fig. 3 is the block diagram of the guiding device of the single underwater propulsion unit of the utility model, and this guiding device is stator.
Detailed description of the invention
As shown in Figure 1, a kind of single underwater propulsion unit comprises impeller 1, shell 2, interior storehouse 3, actuating device 4 and guiding device 5, and guiding device 5 can be stator as shown in Figure 3.Impeller 1 can adopt the impeller of spiral mixed-flow, and the lobe numbers of impeller 1 is 2; Shell 2 is the streamlined structure of two ends connection, inner hollow, and the diameter of the entrance point 21 of shell 2 is greater than the diameter of exit end 22; Impeller 1 is arranged on entrance point 21 place (as shown in Figure 2) of shell 2; Interior storehouse 3 is arranged in shell 2, and guiding device 5 is set in the entrance point 21 also near shell 2 on interior storehouse 3; And impeller 1 is near the side of shell 2, and the gap d of guiding device 5 between the side of the entrance point 21 of shell 2 is 2mm.Actuating device 4 comprises waterproof DC machine 41, battery 42, on-off structure (not shown) and regulating mechanism 43, actuating device 4 is arranged in interior storehouse 3, and the axle drive shaft 411 of waterproof DC machine 41 stretches out from the through hole 311 of the baffling device 31 be arranged on interior storehouse 3, and be fixedly connected with impeller 1, thus with impeller 1 synchronous axial system.And being provided with bearing (not shown) in through hole 311, the outer ring of bearing is fixedly connected with baffling device 31, and inner ring is fixedly connected with axle drive shaft 411.
Natch, impeller 1 is near the side of shell 2, and the span of the gap d of guiding device 5 between the side of the entrance point 21 of shell 2 is 1-5mm.When gap d is less than 1mm, impeller 1 and guiding device 5 easily rub, thus produce noise, and reduce the service life of impeller 1 and guiding device 5; And when gap d is greater than 5mm, the time that the current entering impeller 1 stop between impeller 1 and guiding device 5 can be excessively of a specified duration, and when current during this period of time stop, the speed of current can reduce, and finally causes the acceleration effect of this propelling unit not ideal enough.
Preferably, exit end 22 place of shell 2 is provided with trivector thruster (not shown).Trivector thruster can reduce the resistance that this single underwater propulsion unit is subject to when advancing by the acceleration/accel producing different directions, thus reach the object reducing the energy that this single underwater propulsion unit consumes when accelerating, when user advances under water, easily can obtain the thrust in all directions.
The single underwater propulsion unit small volume of the utility model, therefore user directly carries on the back on back by backpack strip, when user needs to advance fast under water, open the start-stop system of this propelling unit, waterproof DC machine is started working, axle drive shaft impeller carries out synchronous axial system, high-speed cutting is carried out to the waters near impeller, the current that cutting is formed enter the driving surface of impeller from the impeller high speed of coiling, high-velocity flow flows to guiding device after rotating past impeller, through guiding device drainage, the high-velocity flow of the rotation entered in this propelling unit is made to become high-speed straight-line current, finally by the exit end ejection at a high speed of shell, the user being equipped with this propelling unit is made to obtain the thrust advanced at utmost speed, and then arrive destination fast.When user needs adjustment working direction, only need rotate the health of oneself, just can reach the object of adjustment working direction, time saving and energy saving.And impeller enters the foreign material such as the pasture and water of this propelling unit inside can follow high-velocity flow from the exit end of this propelling unit spray when cutting the water surface, and can not be wrapped in this propelling unit, improve the reliability of service of this propelling unit.
The utility model single underwater propulsion unit volume is little, user is easy to carry, even if user carries this propelling unit and fights under water, when meeting with under water, this propelling unit also not easily sustains damage, and user is when needing to turn to, only need adjust oneself health direction, simple to operation, easily carry.And user can regulate propulsive force size according to different situations, so that user can adapt to more operating environment.