CN206523288U - Based on multifunctional bionic drag reduction test device under water - Google Patents
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Abstract
Based on multifunctional bionic drag reduction test device under water, including test platform support, experimental test component, power input module, torque signal acquisition component, with water assembly and moving assembly, described experimental test component includes the first experiment exemplar test suite, the second experiment exemplar test suite and sealing cartridge module, described first tests exemplar test suite, the second experiment exemplar test suite and is placed in described annular seal space component internal, and the first described experiment exemplar test suite is co-axially located at the second experiment exemplar test suite inner chamber；Described torque signal acquisition component includes torque signal coupler, signal acquisition module, foil gauge and torque output shaft；Described power input module includes motor, motor supporting base, belt pulley, belt and power input shaft.The beneficial effects of the utility model are：It is small-sized, cheap, possess a variety of test functions, it is all more convenient to use installing/dismounting, and can adapt to different fluid experiment.
Description
Technical field
It is specifically a kind of based on multifunctional bionic surface under water the present invention relates to a kind of skin resistance test device
Drag reduction test device.
Background technology
Currently, the "Oceanic" strategy is that have many resources in the national strategy that every country is given priority to, ocean, for development state
Family's economy is also of great advantage, therefore it is also each national indispensable strategy safely to improve Development of Marine.On marine safety
And economy, the navigation instrument in ocean, such as ship, fish, naval vessels, all in the economic development of ocean and in national defense safety
Play tremendous influence power.Nowadays energy demand is increasing, and energy reserve is also increasingly reduced, therefore how to allow in ocean
The more efficient navigation of ship naval vessels becomes a urgent problem to be solved, should improve efficiency of energy utilization, ship is improved again
The headway of oceangoing ship, then how to reduce the resistance run into navigation into the key of research, this problem is also section at present
The focus of skill circle research.
Sail body is generally required in the process of running in ocean overcomes three kinds of resistances.Frictional resistance therein accounts for 50%,
What is more, such as submarine, torpedo, and the ratio can reach 70%, it is seen that frictional resistance disappears to the hull speed of service and the energy
Consumption has great influence, and during navigation, reducing friction resistance seems especially important.Not only in water, pass through difference
The experiment in field is it can be found that the aircraft of the problem of aerial flight tool can also run into same, such as go off daily, empty
Gas is to its resistance close to half, and the and for example higher fighter plane of those flying speeds, frictional resistance is also up to 50%.Pipeline transportation
In, more than 80% energy is used for consuming overcoming skin friction resistance.More there are some experimental studies to show, carrying out fluid experiment
When, turbulent flow is such as used, Reynolds number is up to 105, for laminar flow, the viscous force of fluid can also lift ten times, so passing through
These experiments are it can be found that sail body surfactant fluid shear stress increases, and loss will also rise.
In order to reduce resistance during ship's navigation, bionic, drag-reducing is a unusual popular research direction at present.For example it is extra large
Globefish, shark, by, in the imitation of ocean went swimming top-notch player, studying the characteristic that marine organisms quickly move about to these.By bionical
Field scientist to the analysis and observations of these associated biomolecules, by from profile to epidermis, the research of organ find, in its epidermis
On, there is different construction, under the microscope of high power, there is special microstructure characteristic.And the jet in shark gill portion
Structure can aid in resistance when reducing travelling.Surface with these features is put into and tested by scientist, is sent out in contrast
It is exactly now that these special surfaces can effectively improve the turbulence characteristics of surfactant fluid, it is had in travelling faster higher
Speed.
Bionic non-smooth surface drag reduction technology and bionical jet flow drag reduction technology are always research in fluid drag-reduction field
Focus.People, in order to more accurately grasp its mechanism, record its accurate drag reduction when using various novel drag reduction technologies
Effect by some high-end equipment, it is necessary to be tested, and the general fluid resistance test experiments that carry out mostly use water hole device,
Water hole device is with high costs due to its, and mechanism is sufficiently complex, and floor space is wide, and the flow field in experiment is difficult to simulate, and tests
Cycle is very long, so causes water hole device to have significant limitation in reality experiment.Even nowadays having developed
Small-sized hydrodynamics test device out, is all traditional structure, therefore in order to need to solve to realize the various of test sample
Property, based on facilitating installing/dismounting, the requirement that can be tested under numerous conditions.Design research and development one are small-sized, cheap,
Possess a variety of test functions, use that installing/dismounting is all more convenient, and can adapt to the device of different fluid experiment and show
Obtain especially crucial, Research of Drag Reduction is significant.
The content of the invention
In order to which the hydrodynamics test device mechanism for solving current is sufficiently complex, floor space is wide, and the flow field in experiment is difficult
To simulate, and experimental period it is very long the problem of, the present invention proposes a kind of small-sized, cheap, possesses a variety of experiment work(
Can, use that installing/dismounting is all more convenient, and can adapt to different fluid experiment based on multifunctional bionic under water
Surface drag reduction test device.
It is of the present invention to be surveyed based on multifunctional bionic drag reduction test device under water, including test platform support, experiment
Try component, power input module, torque signal acquisition component, with water assembly and moving assembly, described power input module, examination
Test test suite, moving assembly and described water assembly of matching somebody with somebody to be arranged on described test platform support, described moving assembly
It is affixed with described test platform support；The power input module passes through belt pulley and the power of described experimental test component
Input is connected, and the clutch end of the second described experimental test component is connected with described torque signal acquisition component；
Described torque signal acquisition component is arranged on described moving assembly；The water inlet pipe with water assembly and described sealing
The water inlet tube connection of chamber, the outlet pipe with water assembly is connected with the delivery port pipeline of the annular seal space, and its feature exists
In：Described experimental test component includes the first experiment exemplar test suite, the second experiment exemplar test suite and sealing drum
Component, described first experiment exemplar test suite, the second experiment exemplar test suite are placed in described annular seal space component
Portion, the first described experiment exemplar test suite is co-axially located at the second experiment exemplar test suite inner chamber；First experiment
Exemplar test suite includes the first experiment exemplar, the first experiment exemplar carrier, the first experiment exemplar back-up ring and shaft end ring, institute
The first experiment exemplar carrier is stated to lean against at the shaft shoulder of power input shaft, and by the power input shaft shaft shoulder and power input shaft
Key realize it is axial and circumferentially positioned, it is described first experiment exemplar coaxial package first experiment exemplar carrier outside, first
Test exemplar door to be arranged on the end face of the first experiment exemplar carrier, realize and the axial direction of the first experiment exemplar door is consolidated
It is fixed；
The second described experiment exemplar component includes the second experiment exemplar, the second experiment exemplar left end cap, the second test sample
Part right end cap and shaft end ring, described the second experiment exemplar left end cap and the second experiment exemplar right end cap are sealingly mounted at respectively
Second experiment exemplar two ends；Second experiment exemplar right end cap is coaxially socketed in the end that torque output shaft stretches into annular seal space component inner chamber
Portion, and axial restraint is realized by the shaft shoulder of torque output shaft；Described shaft end ring is connected on torque output shaft, is pressed simultaneously
Tight second experiment exemplar right end cap, is realized to the circumferentially fixed of the second experiment exemplar right end cap by thrust；
Described torque signal acquisition component includes torque signal coupler, for gathering the second letter for testing exemplar moment of torsion
Number acquisition module, for transmitting the second torque output shaft for testing exemplar moment of torsion, for gather first test exemplar moment of torsion should
Become piece and the power input shaft for input power, described square signal coupler is arranged on described torque couplings bearing
On；One end of described torque output shaft, which is stretched into after described annular seal space component internal, installs the second experiment exemplar；Described torsion
It is tightly connected between square output shaft and described annular seal space component；
Described power input module includes motor, motor supporting base, belt pulley, belt and power input shaft, motor shaft
Stretch and use the tight connection of belt with being respectively provided with power input shaft between belt pulley, two belt pulleys；The shaft extension of described motor
It is connected by belt pulley with described power input shaft, motor, which is arranged on motor supporting base, keeps having phase with power input shaft
Same centre-height；It is furnished with the foil gauge for being used for measuring moment of torsion on power input shaft on the power input shaft in key, it is described
Foil gauge is electrically connected with external signal processor.
It is described to include tank, centrifugal pump, water inlet pipe, outlet pipe, drainpipe, turbine flowmeter and ball valve, institute with water assembly
State the water inlet of centrifugal pump to be introduced into by pipeline in described tank, the delivery port and described water inlet pipe of described centrifugal pump
Water inlet end is connected, and the water side of described water inlet pipe is connected with the water inlet of described annular seal space, the water inlet of described outlet pipe
End is connected with the experiment effluent pipe mouth of annular seal space left end cap, and water side is introduced in described tank, the water inlet end of the drainpipe
It is connected with the drain pipe port in seal cavity, water side is introduced in described tank, and described experiment outlet pipe and drainpipe are equal
Through hole support on test platform support, whole process of the test realizes recycling for test water；Described inlet pipeline
On be provided with turbine flowmeter, ball valve is equipped with pipeline in water inlet pipe and publishing books is used for adjusting flow, whole inlet pipeline by
Water inlet pipe support frame is supported；Centrifugal pump with water assembly extracts water from tank and is delivered to by water inlet pipe in seal cavity, and
Flow of inlet water is controlled by ball valve, the turbine flowmeter installed on inlet pipeline, and then controls second to test jet stream on exemplar
The size of speed.
Described signal acquisition module includes torque output shaft, blossom type shaft coupling, torque couplings, keyway plate, moment of torsion
(foil gauge is for measuring on power input shaft for key and foil gauge on coupler bearing, power input shaft and its input shaft
Moment of torsion, and then the moment of torsion on the first experiment exemplar can be obtained, it is also one kind in signal acquisition module), torque output shaft
Exemplar component, right-hand member connection blossom type shaft coupling are tested in left end connection second；The torque signal coupler is believed installed in moment of torsion
On number coupler bearing, torque signal coupler bearing is arranged on moving assembly, is provided with torque signal coupler bearing
Keyway plate, torque signal coupler one end be arranged on described keyway plate on, keyway plate its one end is realized it is circumferentially fixed, it is another
End is connected with blossom type shaft coupling；The moment of torsion that the second experiment exemplar is subject in process of the test is transmitted by torque output shaft, quilt
Measured by torque signal coupler, and it is transferred on the signal processor of outside, the collection of foil gauge torque signal is measurement power
The moment of torsion of key on input shaft.The power input shaft is hollow rotary shaft, power input shaft and the first experiment exemplar carrier it
Between connected by key, foil gauge is installed on key.In process of the test, power input shaft drives first to test the rotation of exemplar component
Turn, moment of torsion is produced on key measured by foil gauge, measured moment of torsion is output to the signal of outside by wire on foil gauge
On processor, wire is arranged in the cavity of hollow rotary shaft.
Described sealing cartridge module includes seal cavity, annular seal space left end cap and annular seal space right end cap, described annular seal space
Left end cap, annular seal space right end cap are sealingly mounted at the both ends of the surface of described seal cavity respectively, are formed for accommodating experimental test
The annular seal space of component；Described annular seal space left end cap is provided with the centre bore for being used for being arranged on power take-off lever bearing；Described
Annular seal space right end cap is provided with the centre bore being used on the torque output shaft of torque signal acquisition component；Described annular seal space
The side wall of body is provided with water inlet and the total mouth of draining for being connected with annular seal space, and described annular seal space left end cap, which is provided with, to be used for and the
The experiment effluent pipe mouth of two experiment exemplar component inner chambers connections, the water inlet and described water dispensing apparatus of described seal cavity
Water inlet pipe is connected, and the total mouth of described draining, described experiment effluent pipe mouth pass through drainpipe, outlet pipe and described tank respectively
Connection.
Described sealing cartridge module two ends are connected by corresponding magnet fluid sealing component with power output sealing respectively
It is connected with the torque output sealing of torque signal acquisition component, described magnet fluid sealing component includes being used to be socketed in power
Axle sleeve, magnet fluid sealing element and the coaxial bearing holder (housing, cover) being placed in inside axle sleeve on input shaft or torque output shaft, two
Individual described axle sleeve is connected on the left and right end cap of annular seal space by screw, and described magnet fluid sealing element includes annular forever
Teeth groove is provided with long magnet and pole shoe, every piece of pole shoe inwall, magnetic circuit, described rotation are constituted between revolving part gap
Part is power input shaft or torque output shaft；Adjust pad, pole shoe, annular are sequentially loaded into described axle sleeve from outside to inside
Permanent magnet, pole shoe and adjust pad, described bearing holder (housing, cover) are connected on axle sleeve by screw, and pass through the axle of bearing holder (housing, cover) end
Shoulder realizes the axial restraint to magnet fluid sealing element；Power input shaft axle sleeve uses non-magnetic material with torque output shaft axle sleeve
Material aluminium alloy is made, and its endoporus and two pieces of pole shoes are interference fits；Magnetic fluid by annular permanent magnet (N-S), pole shoe and
The magnetic circuit that rotary shaft is constituted, under the magnetic fields that magnet is produced, the magnetic being placed between axle and pole shoe top gap
Fluid is concentrated, and forms it into a "O" ring, gap passage is blocked and reaches sealed purpose.Magnet fluid sealing because
It is the sealing of liquid formation, as long as in the pressure differential range of permission, it is possible to achieve zero leakage, and be non-contacting seal,
Friction will not be produced between potted component and rotary shaft, therefore the accuracy of torque measurement can be improved, to system testing knot
Fruit nothing is significantly interfered with.
Described annular seal space body sidewall is provided with the screwed hole for being vented, the screwed hole equipped with corresponding sealing spiral shell
Bolt.Be provided with axial frustum cone structure on described annular seal space left end interior surface, in described second experiment exemplar left end cap and
It is furnished with a set of magnet fluid sealing component between described annular seal space left end cap round platform, wherein the endoporus of the second experiment exemplar left end cap
With two pieces of pole shoe interference fits of corresponding magnet fluid sealing component, between two pieces of pole shoes, round platform and pole shoe and round platform between
Gap formation magnetic circuit, forms the magnetic seal being sealed on round platform；The power input shaft axle sleeve and annular seal space left end cap
Between using O-ring seal sealing, between the torque output shaft axle sleeve and annular seal space right end cap also using O-ring seal seal.
Described power input shaft is hollow rotary shaft, and key is passed through between power input shaft and the first experiment exemplar carrier
The foil gauge being provided with connection, key；Measured moment of torsion is output to by wire at the signal of outside on described foil gauge
Manage on device, wire is arranged in the cavity of hollow rotary shaft.
The moving assembly includes mobile support, postive stop baffle, spur gear wheel, rack fixed plate and rack, the torsion
Square coupler support is connected with mobile support, and being welded with floor between the annular seal space right end cap and mobile support fixes, described
Mobile frame bottom is provided with spur gear wheel and is engaged with the rack；The rack is welded in rack fixed plate, rack
Fixed plate left and right ends are welded with postive stop baffle.Using the drive mechanism of rack-and-pinion, be conducive to stationarity during transmission, do not damage
To cavity wall, the sealing after cavity is overlapped is not destroyed.The rack is welded in rack fixed plate, the weldering of rack fixed plate left and right ends
Limited location baffle plate, makes whole moving assembly be moved in certain scope.Finish every time after experiment, need to such as change experiment exemplar,
The then first water that retains in discharge seal cavity, after water drain it is net after turn on screw on annular seal space right end cap, by moving assembly and
The part being welded on moving assembly is moved outward together, when moving on to correct position, and the first experiment exemplar can be flexibly changed as needed
With the second experiment exemplar, more finish changing after test sample part, whole device is moved along together, after fixing, attachment screw starts
Experiment next time.
The first experiment exemplar is bionic non-smooth surface structure, wherein the bionic non-smooth surface of the first experiment exemplar
Structure can be processed into V-groove, rectangle groove, ellipse groove or round groove of rule etc.；Second test sample
Part forms bionical fluidic architecture provided with jet orifice, wherein the uniform cloth of described jet orifice is in experiment sample surface, jet orifice is tool
There is the round through hole of same diameter.
This experimental rig can be carried out based on bionic non-smooth surface frictional resistance test under water and based under water simultaneously
Bionical jet surface drag reduction testing experiment.The fluid media (medium) that this experimental rig is used is environment friendly and pollution-free for water.In order that whole
Individual device can efficiently be run, and the screw thread that annular seal space whether is filled for observable fluid has been opened up in seal cavity upper end
Hole.Before process of the test, the ball valve on inlet pipeline is turned on, the sealing bolt in seal cavity is turned on, tightens outlet pipeline and row
Ball valve in water lines, while motor is closed.In process of the test, centrifugal pump pumps to water in seal cavity, close
Seal air in cavity to discharge by the screwed hole in seal cavity, regular jet orifice is set on the second experiment exemplar, led to
Certain pressure water is crossed by intracavitary in jet orifice press-in jet, jet is formed on the second experiment exemplar internal face, when water note
When in full annular seal space, sealing bolt is screwed in seal cavity while opening the ball valve on outlet pipeline, and start motor.Electricity
Machine drives first to test exemplar rotation, and when the first experiment exemplar is in high speed rotation status, its internal flow will together turn therewith
It is dynamic, and through after a period of time, the two will with etc. speed rotated around its center axis；The fluid of internal motion will be with remains stationary
Second experiment exemplar between occur relative motion, because fluid has stickiness, motion when can produce certain frictional resistance,
This drag effect is in moment of torsion suffered in the first experiment exemplar outside wall surface and the second experiment exemplar internal face, the first experiment exemplar
Measure, be transferred to by wire on signal processor via foil gauge, suffered moment of torsion passes through on the second experiment exemplar internal face
Torque signal coupler is transferred on signal processor.During stream test, water inlet pipe flow can be by installed in pipe
Ball valve in road is adjusted, and the turbine flowmeter that flow of inlet water can be on inlet pipeline is read, according to total on the second experiment exemplar
The area of jet orifice tries to achieve the size of effluxvelocity, and the size of effluxvelocity can be changed by changing ball valve switch degree, for dress
The process with different jet velocity jet and comparative analysis resistance reducing performance put in process of the test provides reliable foundation.Experiment
The ball valve on drainage pipeline is turned on during completion can exclude water unnecessary in seal cavity, make in its screw clamp that flows back, complete examination
Test the recycling of fluid media (medium).
The TT＆C software part of the signal processor of this Test Data Acquisition System is write by LabVIEW.Doing bionical non-light
When sliding frictional resistance test experiments of the surface under water environment, motor drives power input shaft to rotate by belt pulley, and power is defeated
The the first experiment exemplar entered on axle is rotated with identical angular speed, and the first experiment exemplar is by the frictional resistance of fluid, friction resistance
Power changes into moment of torsion measured by foil gauge.In process of the test, by the frictional resistance of fluid on the second experiment exemplar inner surface,
Frictional resistance changes into moment of torsion by torque output shaft measured by torque signal coupler.Torque signal coupler is collected
Processing of the analog signal by the conversion, amplification and filtering of transmitter, energy and data are converted to by the signal that sensor is collected
The analog signal of acquisition module connection, analog signal carries out A/D conversions by data acquisition module, and being changed into can be by signal transacting
The data signal of device storage, is stored in signal processor.
The beneficial effects of the invention are as follows：Process of the test can carry out rubbing based on bionic non-smooth surface under water simultaneously
Wipe resistance measurement and based on bionical jet surface drag reduction testing experiment under water.The efficiency of test can be greatly improved.Doing base
When bionic non-smooth surface frictional resistance testing experiment under water, experiment exemplar can be processed into surface knot of different shapes
Structure, such as bowl configurations, square type structure, round bulge-structure；Or coat figure layer in testing surface.By comparing different surfaces structure
Under torque signal be worth to the drag-reduction effect of different surfaces structure.Examination is tested based on bionical jet surface drag reduction under water doing
When testing, the second experiment exemplar can be processed into the biomimetic features examination of different pore size size, different pore size arrangement, different pore size shape
Plate is tested, the frictional resistance size under different jet operating mode is worth to by the torque signal under relatively more different operating modes, to obtain most
Excellent drag reduction jet surface provides strong foundation.The size that jet velocity can be changed simultaneously compares torsion under different jet flow velocity
Square is worth to the bionical jet flow drag reduction surface with optimal drag-reduction effect.And on the first experiment exemplar measured moment of torsion except
Outside the frictional resistance size that non-smooth surface can be studied, by the first experiment exemplar outer surface and the second experiment exemplar inner surface
Identical surface texture is processed into, then result of the test can be as the second contrast test group for testing exemplar jet flow drag reduction, and research is not
With the drag-reduction effect of jet surface under structured non-smooth surface.Data collecting system of the present invention is easy to use, simple in construction, and adopts
With magnet fluid sealing element so that accuracy during measurement can be greatly improved.Mobile group can be passed through when off-test
Part carries out the replacing of exemplar, convenient and swift, and this process can greatly improve measurement efficiency, saves the time, reduces use cost.This
The test fluid media (medium) used is tested for water, whole process reclaimed water is all recycled, environment friendly and pollution-free.
Brief description of the drawings
Fig. 1 is the structure chart of the present invention；
Fig. 2 is the experiment exemplar test component of the present invention；
Fig. 3 is power input shaft end sectional view；
Fig. 4 is the first experiment exemplar test suite of the present invention；
Fig. 5 is the second experiment exemplar test suite of the present invention；
Fig. 6 is the magnet fluid sealing component of the present invention；
Fig. 7 is the first experiment exemplar that surface is ellipse non-smooth surface.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings
Referring to the drawings：
Embodiment 1 is of the present invention based on multifunctional bionic drag reduction test device under water, including test platform support,
Experimental test component, power input module, torque signal acquisition component, with water assembly and moving assembly, described power input
Component, experimental test component, moving assembly and described water assembly of matching somebody with somebody are arranged on described test platform support, described shifting
Dynamic component and described test platform support are affixed；The power input module passes through belt pulley and described experimental test component
Power intake be connected, the clutch end of described the second experimental test component and described torque signal acquisition component
Connection；Described torque signal acquisition component is arranged on described moving assembly；The water inlet pipe with water assembly with it is described
Annular seal space water inlet tube connection, the outlet pipe with water assembly is connected with the delivery port pipeline of the annular seal space, its
It is characterised by：Described experimental test component include the first experiment exemplar test suite, the second experiment exemplar test suite and
Cartridge module is sealed, described first experiment exemplar test suite, the second experiment exemplar test suite are placed in described annular seal space
Component internal, the first described experiment exemplar test suite is co-axially located at the second experiment exemplar test suite inner chamber；Described
One experiment exemplar test suite includes the first experiment exemplar, the first experiment exemplar carrier, the first experiment exemplar back-up ring and shaft end
Back-up ring, the first experiment exemplar carrier is leaned against at the shaft shoulder of power input shaft, and passes through the power input shaft shaft shoulder and power
Key on input shaft realize it is axial and circumferentially positioned, it is described first experiment exemplar coaxial package first experiment exemplar carrier outside
Portion, the first experiment exemplar door is arranged on the end face of the first experiment exemplar carrier, is realized to the first experiment exemplar door
Axial restraint；
Specifically, as shown in figure 1, the first experiment exemplar is bionic non-smooth surface structure, second test sample
Part is bionical fluidic architecture.The power input module is connected by belt pulley with the first experiment exemplar test component, and described the
Two experiment exemplar test components are connected with the torque signal coupler.As shown in Figure 2, the first experiment exemplar test suite
It is installed in the second experiment exemplar test suite in seal cavity.Described annular seal space, the second described experiment exemplar component
Coaxial arrangement forms three layers of telescoping structure from outside to inside successively with the first described experiment exemplar component.Second experiment
Well-regulated jet orifice is arranged on exemplar, process of the test reclaimed water can be entered in incident flow inner chamber by jet orifice, make the second experiment
Sample surface is full of water, once can be achieved based on bionic non-smooth surface frictional resistance test under water and imitative based under water
Raw jet surface drag reduction testing experiment.
The torque signal coupler is arranged on moving assembly, the water inlet pipe with water assembly and described annular seal space
Water inlet tube connection, the outlet pipe with water assembly is connected with the delivery port pipeline of the annular seal space, the annular seal space
On have two delivery port pipelines, one is used to testing effluent pipe mouth, the drain pipe port that is used to change experiment exemplar, described
The first experiment exemplar test component, the second experiment exemplar test component sealed using magnetic fluid, seal cavity use
Gasket seal and O-ring seal are sealed.The all component is placed on test platform support.
Described power input module includes motor 1, motor supporting base 2, belt pulley 3, belt 4, power input shaft 5.Such as
Shown in Fig. 3, belt pulley 3 on motor is positioned on motor-shaft extending it by belt pulley positioning screw, on power input shaft
Belt pulley 4 is positioned on power input shaft it by positioning screw.Belt 4 is enclosed on tight connection on two belt pulleys.Electricity
The rotation that machine 1 passes through motor-shaft extending drives that the belt pulley 3 on motor-shaft extending rotates and then that power is transferred into power by belt 4 is defeated
Enter on axle 5.Motor 1, which is arranged on motor supporting base 2, keeps having identical centre-height with power input shaft 5.
It is described to include tank 58, centrifugal pump 57, water inlet pipe and outlet pipe, turbine flowmeter 49, ball valve with water assembly.50 institutes
The water inlet of centrifugal pump 57 is stated by being introduced into by pipeline in described tank 58, the delivery port of described centrifugal pump 57 with it is described
Water inlet pipe water inlet end be connected, the water side of described water inlet pipe is connected with the blasthole of described annular seal space, described examination
Test the water inlet end of outlet pipe with the experiment effluent pipe mouth of annular seal space left end cap 17 to be connected, water side is introduced in described tank 58,
The water inlet end of the drainpipe is connected with the drain pipe port in seal cavity 23, and water side is introduced in described tank 58, described
Experiment outlet pipe and drainpipe supported by the through hole on test platform support 59, whole process of the test realizes test water
Recycle.Turbine flowmeter 49 is provided with described inlet pipeline, being equipped with ball valve on water inlet pipe and pipeline of publishing books uses
To adjust flow, whole inlet pipeline is supported by water inlet pipe support frame 34.Centrifugal pump 57 with water assembly is extracted from tank 58
Water is delivered in seal cavity by water inlet pipe, and by ball valve 50, the turbine flowmeter 49 installed on inlet pipeline control into
Water-carrying capacity, and then control the second size for testing jet velocity on exemplar 22.
As shown in figure 3, the first experiment exemplar test suite includes the first experiment experiment exemplar carrying of exemplar 28, first
The experiment exemplar of frame 27, first door 29, shaft end ring 30.The first experiment exemplar carrier 27 is sleeved on power input shaft 5
Right-hand member by the shaft shoulder carry out axially position, carried out by key 24 it is circumferentially positioned, it is described first experiment exemplar 28 is sleeved on the first examination
Test on exemplar carrier 27, the right that the first experiment exemplar door 29 is fitted in into the first experiment exemplar carrier 27 passes through screw
Shaft end ring 30 is fixed on into the right-hand member of the first experiment exemplar door 29 to realize to the first axial restraint for testing exemplar door 29,
And then realize to the first axial restraint for testing exemplar 28.The power input shaft 5 is hollow rotary shaft, is provided with key 24
Being connected with foil gauge 25, foil gauge 25 can be connected with the wire of output torque signal, wire by hollow rotary shaft 5, can be with
The moment of torsion produced when testing is input on external signal processor by signal conductor.
As shown in figure 4, the second experiment exemplar component includes the second experiment experiment exemplar of exemplar 22, second left end cap 21, the
Two experiment exemplar right end caps 32, shaft end ring 31.Described the second experiment exemplar left end cap 21 and the second experiment exemplar right end cap
32 are separately mounted to the two ends of the second experiment exemplar 22, and the two ends of the second experiment exemplar 22 are connected in by screw, and in the second examination
Test the two ends of exemplar 22 and lay gasket seal respectively, play sealed effect.The described outside of the second experiment exemplar left end cap 21
Sealing function is played equipped with magnet fluid sealing component.Second experiment exemplar right end cap 32 is socketed on torque output shaft 45, is passed through
The shaft shoulder of torque output shaft 45 realizes axial restraint, and shaft end ring 31 is connected on torque output shaft by screw, while compressing the
Two experiment exemplar right end caps 32, are realized to the circumferentially fixed of the second experiment exemplar right end cap 32 by thrust.
Torque signal acquisition component includes the collection of the torque signal of torque signal coupler 47 and adopted with the torque signal of foil gauge 25
Collection, the signal acquisition of torque signal coupler 47 realizes the collection to the second experiment moment of torsion of exemplar 22 in process of the test, including moment of torsion
Output shaft 45, blossom type shaft coupling 46, torque signal coupler 47, keyway plate 48, torque couplings bearing 51.Torque output shaft
Exemplar component, right-hand member connection blossom type shaft coupling 46 are tested in 45 left ends connection second.The torque signal coupler 47 is arranged on
On torque signal coupler bearing 51, torque signal coupler bearing 51 is arranged on moving assembly, torque signal coupler branch
Keyway plate 48 is installed, the one end of torque signal coupler 47 is arranged on described keyway plate 48,48 pairs of keyway plate on seat 51
Its one end is realized circumferentially fixed, and the other end is connected with blossom type shaft coupling 46.In process of the test second experiment exemplar 22 by
Moment of torsion transmitted by torque output shaft 45, measured by torque signal coupler 47, and be transferred to outside signal processor
On.
The collection of the torque signal of foil gauge 25 is the moment of torsion for measuring key 24 on power input shaft 5.The power input shaft 5 is empty
Connected between heart rotary shaft, the experiment exemplar of power input shaft 5 and first carrier 27 by key 24, strain is installed on key 24
Piece 25.In process of the test, power input shaft 5 drives first to test the rotation of exemplar component, and moment of torsion is produced on key 24 and is strained
Measured by piece 25, measured moment of torsion is output to by wire on the signal processor of outside on foil gauge 25, and wire is arranged on
In the cavity of hollow rotary shaft 5.
Due to the carrier of power input shaft 5 in process of the test and torque output shaft 45 as torque signal, it is desirable in moment of torsion
Signal is reduced as far as the influence that outer friction resistance is gathered to moment of torsion when transmitting.In power input shaft 5, torque output shaft
45th, magnet fluid sealing is used on the second experiment exemplar left end cap 21, as shown in Figure 5.Gasket seal is used in seal cavity 23
Sealing.Sealed between seal cavity 23 and power input shaft axle sleeve 10 and torque output shaft axle sleeve 40 using O types sealing ring 14.
Magnet fluid sealing element is made up of annular permanent magnet 13, pole shoe 12.It is provided with every piece of inwall of pole shoe 12
Magnetic circuit is constituted between teeth groove, with revolving part gap.Magnetic fluid is by annular permanent magnet 13 (N-S), pole shoe 12 and rotary shaft
The magnetic circuit constituted, under the magnetic fields that magnet is produced, being placed between power input shaft 5 and pole shoe top gap
Magnetic fluid is concentrated, and forms it into a "O" ring, gap passage is blocked and reaches sealed purpose.Magnet fluid sealing because
To be the sealing of liquid formation, as long as in the pressure differential range of permission, it is possible to achieve zero leakage, and be contactless close
Envelope, will not produce friction between potted component and rotary shaft, therefore can improve the accuracy of torque measurement, to system testing
As a result without significantly interfering with.
Magnet fluid sealing component on power input shaft 5 by placement magnet fluid sealing element power input shaft axle sleeve 10,
Magnet fluid sealing element, bearing holder (housing, cover) 8 are constituted.Power input shaft axle sleeve 10 is connected on annular seal space left end cap 17 by screw, so
Adjust pad 11, pole shoe 12, annular permanent magnet 13, pole shoe 12, adjustment are sequentially loaded into power input shaft axle sleeve 10 afterwards
Bearing holder (housing, cover) 8, is connected on power input shaft axle sleeve 10 by pad 11 finally by screw, realizes and the axial direction of potted component is consolidated
It is fixed.
Similarly on torque output shaft magnet fluid sealing component also by torque output shaft axle sleeve 40, magnet fluid sealing element, axle
Bearing sleeve 41 is constituted.Torque output shaft axle sleeve 40 is connected on annular seal space right end cap 33 by screw, then in torque output shaft axle
Adjust pad 37, pole shoe 38, annular permanent magnet 39, pole shoe 38, adjust pad 37 are sequentially loaded into set 40, finally by
Bearing holder (housing, cover) 41 is connected on torque output shaft axle sleeve 40 by screw, realizes the axial restraint to potted component.Wherein power is inputted
Axle axle sleeve 10 is made with torque output shaft axle sleeve 40 of non-magnet material aluminium alloy, and its endoporus and two pieces of pole shoes are transition
Coordinate.
Magnet fluid sealing component is also equipped with second experiment exemplar left end cap 21, on the inner surface of annular seal space left end cap 17
Axial frustum cone structure is provided with, between the second described experiment exemplar left end cap 21 and the described round platform of annular seal space left end cap 17
Equipped with a set of magnet fluid sealing component, wherein the endoporus and corresponding magnet fluid sealing component of the second experiment exemplar left end cap 21
Two pieces of pole shoe interference fits, the gap between two pieces of pole shoes 19, round platform and pole shoe 19 and round platform forms magnetic circuit, is formed close
It is enclosed in the magnetic seal on round platform.
Sealed in seal cavity 23 using gasket seal.The annular seal space include with blasthole seal cavity 23,
Annular seal space left end cap 17, annular seal space right end cap 33.The annular seal space left end cap 17, annular seal space right end cap 33 are sealingly mounted at respectively
The two ends of seal cavity 23.Have in the seal cavity 23 on the screwed hole for exhaust, the screwed hole equipped with corresponding sealing
Bolt 26.The annular seal space left end cap 17 is provided with axial round platform, the round platform and the second test sample of the annular seal space left end cap 17
Part left end cap 21 is furnished with a set of magnet fluid sealing component.O is used between the power input shaft axle sleeve 10 and annular seal space left end cap 17
Type sealing ring 14 is sealed, and is also sealed between the torque output shaft axle sleeve 40 and annular seal space right end cap 33 using O-ring seal.
The moving assembly includes mobile support 53, postive stop baffle 56, spur gear wheel 52, rack fixed plate 54, rack
55.The torque couplings support 51 is connected with mobile support 53, is welded between the annular seal space right end cap 33 and mobile support 53
It is connected to floor to fix, the mobile bottom of support 53 is provided with spur gear wheel 52 and is engaged with the rack 55, using tooth
The drive mechanism of rack is taken turns, is conducive to stationarity during transmission, is not damaged to cavity wall, the sealing after cavity is overlapped is not destroyed.
The rack 55 is welded in rack fixed plate 54, and the left and right ends of rack fixed plate 54 are welded with postive stop baffle 56, makes entirely to move group
Part is moved in certain scope.Finish every time after experiment, need to such as change experiment exemplar, then first discharge the internal memory of seal cavity 23
The water stayed, turns on the screw on annular seal space right end cap 33 after water is drained only, by moving assembly and zero be welded on moving assembly
Part is moved outward together, when moving on to correct position, and the first experiment exemplar 28 and the second experiment exemplar 22 can be flexibly changed as needed,
More finish changing after test sample part, whole device is moved along together, after fixing, attachment screw starts experiment next time.
This experimental rig can be carried out based on bionic non-smooth surface frictional resistance test under water and based under water simultaneously
Bionical jet surface drag reduction testing experiment.The fluid media (medium) that this experimental rig is used is environment friendly and pollution-free for water.In order that whole
Individual device can efficiently be run, and the screw thread that annular seal space whether is filled for observable fluid has been opened up in the upper end of seal cavity 23
Hole.Before process of the test, turn on the ball valve on inlet pipeline, turn on the sealing bolt 26 in seal cavity, tighten outlet pipeline and
Ball valve on discharge pipe line, while motor 1 is closed.In process of the test, water is pumped to seal cavity by centrifugal pump 57
In 23, air is discharged by the screwed hole in seal cavity in seal cavity 23, and rule are provided with the second experiment exemplar 22
Then jet orifice, intracavitary in jet is pressed into by certain pressure water by jet orifice, the shape on the second experiment internal face of exemplar 22
Into jet, when water is filled in annular seal space, sealing bolt 26 is screwed in seal cavity 23 while opening the ball on outlet pipeline
Valve, and start motor 1.Motor 1 drives the first experiment exemplar 28 to rotate, and the first experiment exemplar 28 is in high speed rotation status
When, its internal flow will be rotated together therewith, and through after a period of time, the two will with etc. speed rotated around its center axis；
Between second experiment exemplar 22 of remains stationary relative motion will occur for the fluid of internal motion, because fluid has stickiness,
Certain frictional resistance can be produced in motion, this drag effect is in the first experiment outside wall surface of exemplar 28 and the second experiment exemplar 22
Internal face, first tests being measured via foil gauge 25 for moment of torsion suffered on exemplar 28, is transferred to by wire on signal processor,
Suffered moment of torsion is transferred on signal processor by torque signal coupler 47 on the second experiment internal face of exemplar 22.Penetrating
Flow in process of the test, water inlet pipe flow can be adjusted by the ball valve in pipeline, and flow of inlet water can be by inlet pipeline
On turbine flowmeter 49 read, the size of effluxvelocity is tried to achieve according to the area of total jet orifice on the second experiment exemplar 22,
The size of effluxvelocity can be changed by changing ball valve switch degree, be during device experiment with different jet velocity jet simultaneously
The process of comparative analysis resistance reducing performance provides reliable foundation.The ball valve that experiment is turned on drainage pipeline when completing can be excluded
Unnecessary water in seal cavity 23, makes in its screw clamp 58 that flows back, completes the recycling of test fluid medium.
The TT＆C software part of the signal processor of this Test Data Acquisition System is write by LabVIEW.Doing bionical non-light
When sliding frictional resistance test experiments of the surface under water environment, motor 1 drives power input shaft 5 to rotate by belt pulley 3, moves
The first experiment exemplar 28 on power input shaft 5 is rotated with identical angular speed, and the first experiment exemplar 28 is hindered by the friction of fluid
Power, frictional resistance changes into moment of torsion measured by foil gauge 25.In process of the test, flowed on the second experiment inner surface of exemplar 22
The frictional resistance of body, frictional resistance changes into moment of torsion by torque output shaft 45 measured by torque signal coupler 47.Moment of torsion
Processing of the analog signal that signal coupler 47 is collected by the conversion, amplification and filtering of transmitter, sensor is collected
Signal be converted to the analog signal that can be connected with data acquisition module, analog signal carries out A/D by data acquisition module and turned
Change, be changed into the data signal that can be stored by signal processor, be stored in signal processor.
Installation process：The installation of first experiment exemplar component：Installing laminating on key, key on power input shaft first should
Become hollow lumen of the wire in power input shaft on piece, foil gauge to draw.The first test sample is set with power input shaft again
Part carrier, suit first tests exemplar on the first experiment exemplar carrier, then in the first experiment exemplar right-hand member laminating the
One experiment exemplar door, shaft end ring is connected on power input shaft by screw, is tried using the pretightning force of screw first
Test exemplar door and realize the fastening for fastening and then realizing the first experiment exemplar.
Seal cavity is installed in relevant position on test platform support, and seal cavity is welded in test platform support by floor
On.Annular seal space left end cap is connected in seal cavity by screw, there is sealing gasket between seal cavity and annular seal space left end cap
Piece seals, and installs deep groove ball bearing in annular seal space left end cap relevant position, is consolidated deep groove ball bearing end cap using screw
It is connected on annular seal space left end cap, realizes the axially position to deep groove ball bearing.Exemplar component is tested by connect before first
Turned left loading from the through hole on annular seal space left end cap from the right side, until the shaft shoulder withstands deep groove ball bearing inner ring.By screw by power
Input shaft axle sleeve is connected annular seal space left end cap corresponding position, is sequentially loaded into adjust pad, pole shoe, annular permanent magnet, pole
Bearing holder (housing, cover), is connected on power input shaft axle sleeve by boots, adjust pad finally by screw, realizes and the axial direction of potted component is consolidated
It is fixed.Load two deep groove ball bearings in bearing holder (housing, cover) again, the power input shaft shaft shoulder plays axle to one end of two deep groove ball bearings
To fixation, bearing (ball) cover is connected on bearing holder (housing, cover) by screw, axial restraint is played to the other end of deep groove ball bearing.In order to
Mitigate spare and accessory parts on annular seal space left end cap and, to the pressure of seal cavity, annular seal space left end cap is welded on by test platform by floor
On support.
In experiment sample platform support corresponding position welding motor supporting base, the affixed motor on motor supporting base, in motor
Pass through the affixed belt pulley of screw in shaft extension.In power output shaft power intake by the connected belt pulley of screw, in motor-shaft extending
On belt pulley and power input shaft on belt pulley between be connected with belt for transmitting power.
Second experiment exemplar left end cap and the second experiment right end cap are connected in the left and right of the second experiment exemplar by screw
, there is gasket seal in the second experiment exemplar left and right ends and seal in two ends.Installed at second experiment exemplar left end cap
A set of magnet fluid sealing component, axial restraint effect is played to magnet fluid sealing element using circlip for hole.By the second examination
Test exemplar component to be sleeved on torque output shaft together, shaft end ring is connected on torque output shaft by screw, spiral shell is utilized
The pretightning force of nail compresses shaft end ring and realizes axial restraint and circumferentially fixed to the second experiment exemplar component simultaneously.
Torque output shaft axle sleeve is connected on annular seal space right end cap by screw, annular seal space right end cap and torque output shaft
There is O-ring seal sealing in shaft room.Load adjust pad, pole shoe, annular permanent magnetic in torque output shaft axle sleeve successively
Bearing holder (housing, cover), is connected on torque output shaft axle sleeve, is reloaded into deep groove ball bearing, passed through by iron, pole shoe, adjust pad by screw
Bearing (ball) cover is connected on bearing holder (housing, cover) by screw, and there is circlip for shaft on the axle of deep groove ball bearing right-hand member to deep-groove ball
Axial restraint effect.Load water-sealed bearing on annular seal space right end cap relevant position, then the second examination assembled
Test exemplar component and turned left from the right side and load annular seal space right end cap through hole.This part is connected in seal cavity using screw.
Correct position welds rack fixed plate on test platform support, is welded in rack in rack fixed plate simultaneously in tooth
Bar fixed plate rear and front end welded limiting baffle plate.Spur gear wheel is placed on rack, cylindrical straight gear wheel and rack is nibbled
Close, moved using the drive mechanism of rack-and-pinion, mobile support is installed on spur gear wheel.It is mobile that support is installed above has
Torque signal coupler, is connected in key on torque signal coupler support simultaneously by torque signal coupler support by screw
Frid is connected on torque signal coupler support, and circumference of the through hole realization to torque signal coupler one end is provided with keyway plate
It is fixed.Mobile moving assembly is to correct position, in torque signal coupler and torque output shaft two ends connection blossom type shaft coupling.
The replacing of exemplar is tested for convenience, the second experiment exemplar component is smoothly removed while mitigating second tests exemplar to annular seal space
Annular seal space right end cap, is welded on mobile support by the pressure of body using floor.
Centrifugal pump is installed in test platform support corresponding position, annular seal space water inlet and centrifugation are connected by water inlet pipe
Pump out and turbine flowmeter and ball valve are installed on the mouth of a river, water inlet pipe, water inlet pipe is supported by water inlet pipe support frame.In centrifugal pump and water
A piece water-supply-pipe is installed between groove.It is provided with seal cavity on the drainpipe for draining, drainpipe and ball valve is installed.
It is provided with annular seal space left end cap on the experiment outlet pipe for testing draining, experiment outlet pipe and ball valve is installed.Test out
Water pipe and drainpipe are introduced into tank, and test the through hole of outlet pipe and drainpipe by relevant position on test platform support
Support.
Process of the test：Apparatus of the present invention can once be carried out based on bionic non-smooth surface frictional resistance test under water simultaneously
With based on bionical jet surface drag reduction testing experiment under water.Before process of the test, the ball valve on inlet pipeline is turned on, sealing is turned on
Sealing bolt on cavity, tightens the ball valve on outlet pipeline and discharge pipe line, while motor is closed.Process of the test
In, centrifugal pump pumps to water in seal cavity, and air is discharged by screwed hole in seal cavity in seal cavity, and described the
Regular jet orifice is set on two experiment exemplars, intracavitary in jet is pressed into by jet orifice by certain pressure water, second
Jet is formed on experiment exemplar internal face, when water is filled in annular seal space, sealing bolt is screwed in seal cavity and is opened simultaneously
Ball valve on outlet pipeline, and start motor.Motor drives first to test exemplar rotation, and the first experiment exemplar, which is in, to be revolved at a high speed
When turning state, its internal flow will be rotated together therewith, and through after a period of time, the two will with etc. speed around its center axis
Rotation；Between second experiment exemplar of remains stationary relative motion will occur for the fluid of internal motion, be sticked because fluid has
Property, certain frictional resistance can be produced in motion, this drag effect is in the first experiment exemplar outside wall surface and the second experiment exemplar
Internal face, first tests being measured via foil gauge for moment of torsion suffered on exemplar, is transferred to by wire on signal processor, second
Suffered moment of torsion is transferred on signal processor by torque signal coupler on experiment exemplar internal face.In stream test mistake
Cheng Zhong, water inlet pipe flow can be adjusted by the ball valve in pipeline, the turbine that flow of inlet water can be on inlet pipeline
Flowmeter is read, and is tried to achieve the size of effluxvelocity according to the area of total jet orifice on the second experiment exemplar, is changed ball valve switch
Degree can change the size of effluxvelocity, be with different jet velocity jet and comparative analysis drag reduction during device experiment
The process of performance provides reliable foundation.The ball valve that experiment is turned on drainage pipeline when completing can exclude many in seal cavity
Remaining water, makes in its screw clamp that flows back, completes the recycling of test fluid medium.When several groups of experiment exemplar situations are sequentially completed
Afterwards, all data compareed, analyzed, handled, draw final sumbission.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (9)
1. inputted based on multifunctional bionic drag reduction test device under water, including test platform support, experimental test component, power
Component, torque signal acquisition component, with water assembly and moving assembly, described power input module, experimental test component, movement
Component and described water assembly of matching somebody with somebody are arranged on described test platform support, described moving assembly and described test platform
Support is affixed；The power input module is connected by belt pulley with the power intake of described experimental test component, the
The clutch end of two experimental test components is connected with described torque signal acquisition component；Described torque signal acquisition component
On described moving assembly；The water inlet tube connection of the water inlet pipe and annular seal space with water assembly, the water distribution
The outlet pipe of component is connected with the delivery port pipeline of the annular seal space, it is characterised in that：Described experimental test component includes the
One experiment exemplar test suite, the second experiment exemplar test suite and sealing cartridge module, the first described experiment exemplar test
Component, the second experiment exemplar test suite are placed in described annular seal space component internal, the first described experiment exemplar test group
Part is co-axially located at the second experiment exemplar test suite inner chamber；The first experiment exemplar test suite includes the first test sample
Part, the first experiment exemplar carrier, the first experiment exemplar back-up ring and shaft end ring, the first experiment exemplar carrier leans against dynamic
At the shaft shoulder of power input shaft, and realize by the key on the power input shaft shaft shoulder and power input shaft axial and circumferentially positioned, institute
The first experiment exemplar coaxial package is stated outside the first experiment exemplar carrier, the first experiment exemplar door is arranged on the first experiment
On the end face of exemplar carrier, the axial restraint to the first experiment exemplar door is realized；
It is right that the second described experiment exemplar component includes the second experiment exemplar, the second experiment exemplar left end cap, the second experiment exemplar
End cap and shaft end ring, described the second experiment exemplar left end cap and the second experiment exemplar right end cap are sealingly mounted at second respectively
Test exemplar two ends；Second experiment exemplar right end cap is coaxially socketed in the end that torque output shaft stretches into annular seal space component inner chamber,
And axial restraint is realized by the shaft shoulder of torque output shaft；Described shaft end ring is connected on torque output shaft, is compressed simultaneously
Second experiment exemplar right end cap, is realized to the circumferentially fixed of the second experiment exemplar right end cap by thrust；
Described torque signal acquisition component includes torque signal coupler, adopted for gathering the second signal for testing exemplar moment of torsion
Collect module, test the torque output shaft of exemplar moment of torsion, for gathering the first foil gauge for testing exemplar moment of torsion for transmitting second
And the power input shaft for input power, described square signal coupler is on described torque couplings bearing；
One end of described torque output shaft, which is stretched into after described annular seal space component internal, installs the second experiment exemplar；Described moment of torsion is defeated
It is tightly connected between shaft and described annular seal space component；
Described power input module include motor, motor supporting base, belt pulley, belt and power input shaft, motor-shaft extending with
Respectively it is provided with power input shaft between belt pulley, two belt pulleys and uses the tight connection of belt；The shaft extension of described motor passes through
Belt pulley is connected with described power input shaft, and motor, which is arranged on motor supporting base, keeps having identical with power input shaft
Centre-height；It is furnished with the foil gauge for being used for measuring moment of torsion on power input shaft, described strain on the power input shaft in key
Piece is electrically connected with external signal processor.
2. as claimed in claim 1 based on multifunctional bionic drag reduction test device under water, it is characterised in that：The water distribution group
Part includes tank, centrifugal pump, water inlet pipe, outlet pipe, drainpipe, turbine flowmeter and ball valve, and the water inlet of the centrifugal pump leads to
Cross pipeline to be introduced into described tank, the delivery port of described centrifugal pump is connected with the water inlet end of described water inlet pipe, described
The water side of water inlet pipe is connected with the water inlet of described annular seal space, water inlet end and the annular seal space left end cap of described outlet pipe
Test effluent pipe mouth to be connected, water side is introduced in described tank, the draining on the water inlet end and seal cavity of the drainpipe
The mouth of pipe is connected, and water side is introduced in described tank, and described experiment outlet pipe and drainpipe are by test platform support
Through hole is supported, and whole process of the test realizes recycling for test water；Turbine flowmeter is provided with described inlet pipeline,
It is equipped with ball valve on water inlet pipe and pipeline of publishing books to be used for adjusting flow, whole inlet pipeline is supported by water inlet pipe support frame；Match somebody with somebody
The centrifugal pump of water assembly extracts water from tank and is delivered to by water inlet pipe in seal cavity, and by being installed on inlet pipeline
Ball valve, turbine flowmeter control flow of inlet water, and then control the second size for testing jet velocity on exemplar.
3. as claimed in claim 1 based on multifunctional bionic drag reduction test device under water, it is characterised in that：Described signal
Acquisition module includes torque output shaft, blossom type shaft coupling, torque couplings, keyway plate, torque couplings bearing, power input
Exemplar component, right-hand member connection blossom type are tested in key and foil gauge on axle and its input shaft, torque output shaft left end connection second
Shaft coupling；The torque signal coupler is arranged on torque signal coupler bearing, and torque signal coupler bearing is arranged on
On moving assembly, keyway plate is installed on torque signal coupler bearing, torque signal coupler one end is arranged on described key
On frid, keyway plate is realized circumferentially fixed to its one end, and the other end is connected with blossom type shaft coupling；The second examination in process of the test
Test the moment of torsion that exemplar is subject to transmit by torque output shaft, measured by torque signal coupler, and be transferred to the signal of outside
On processor.
4. as claimed in claim 1 based on multifunctional bionic drag reduction test device under water, it is characterised in that：Described sealing
Cartridge module includes seal cavity, sealing left end cap and annular seal space right end cap, described sealing left end cap, annular seal space right end cap difference
The both ends of the surface of described seal cavity are sealingly mounted at, the annular seal space for accommodating experimental test component is formed；Described sealing
Left end cap is provided with the centre bore for being used for being arranged on power take-off lever bearing；Described annular seal space right end cap, which is provided with, to be used to be arranged on
Centre bore on the torque output shaft of torque signal acquisition component；The side wall of described seal cavity provided with water inlet and for
The total mouth of draining of annular seal space connection, described annular seal space left end cap is provided with the examination for being used for connecting with the second experiment exemplar component inner chamber
Effluent pipe mouth is tested, the water inlet of described seal cavity is connected with the water inlet pipe of described water dispensing apparatus, the total mouth of described draining,
Described experiment effluent pipe mouth is connected by drainpipe, outlet pipe with tank respectively.
5. as claimed in claim 4 based on multifunctional bionic drag reduction test device under water, it is characterised in that：Described sealing
Cartridge module two ends are connected and torque signal acquisition component by corresponding magnet fluid sealing component with power output sealing respectively
Torque output sealing be connected, described magnet fluid sealing component includes being used to be socketed in power input shaft or torque output
Axle sleeve, magnet fluid sealing element and the coaxial bearing holder (housing, cover) being placed in inside axle sleeve on axle, the axle sleeve described in two pass through spiral shell
Nail is connected on the left and right end cap of annular seal space, and described magnet fluid sealing element includes annular permanent magnet and pole shoe, every piece of pole
Be provided with teeth groove on boots inwall, constitute magnetic circuit between revolving part gap, described revolving part for power output shaft or
Torque output shaft；Adjust pad, pole shoe, annular permanent magnet, pole shoe and tune are sequentially loaded into described axle sleeve from outside to inside
Whole pad, described bearing holder (housing, cover) is connected on axle sleeve by screw, and close to magnetic fluid by the shaft shoulder realization of bearing holder (housing, cover) end
Seal the axial restraint of element；Power input shaft axle sleeve is made with torque output shaft axle sleeve of non-magnet material aluminium alloy, its
Endoporus and two pieces of pole shoes are interference fits.
6. as claimed in claim 4 based on multifunctional bionic drag reduction test device under water, it is characterised in that：Described sealing
Cavity wall, which is provided with the screwed hole for being vented, the screwed hole, is furnished with corresponding sealing bolt；The annular seal space left end cap
Provided with axial round platform, axial frustum cone structure is provided with described annular seal space left end interior surface, in the second described experiment
It is furnished with a set of magnet fluid sealing component between exemplar left end cap and described annular seal space left end cap round platform, wherein the second experiment exemplar
Two pieces of pole shoe interference fits of the endoporus of left end cap and corresponding magnet fluid sealing component, two pieces of pole shoes, round platform and pole shoe with
Gap between round platform forms magnetic circuit, forms the magnetic seal being sealed on round platform；The power input shaft axle sleeve with
Sealed between annular seal space left end cap using O-ring seal, also using O-shaped close between the torque output shaft axle sleeve and annular seal space right end cap
Seal is sealed.
7. as claimed in claim 6 based on multifunctional bionic drag reduction test device under water, it is characterised in that：Described power
Input shaft is hollow rotary shaft, is connected, is provided with key by key between power input shaft and the first experiment exemplar carrier
Foil gauge；Measured moment of torsion is output to by wire on the signal processor of outside on described foil gauge, and wire is arranged on
In the cavity of hollow rotary shaft.
8. as claimed in claim 1 based on multifunctional bionic drag reduction test device under water, it is characterised in that：Described mobile group
Part includes mobile support, postive stop baffle, spur gear wheel, rack fixed plate and rack, the torque couplings support and movement
Support is connected, and being welded with floor between the annular seal space right end cap and mobile support is fixed, and the mobile frame bottom is provided with
Spur gear wheel is engaged with the rack；The rack is welded in rack fixed plate, and rack fixed plate left and right ends are welded with
Postive stop baffle.
9. as claimed in claim 1 based on multifunctional bionic drag reduction test device under water, it is characterised in that：First examination
Exemplar is tested for bionic non-smooth surface structure, wherein the bionic non-smooth surface structure of the first experiment exemplar is processed into the V of rule
Type groove, rectangle groove, ellipse groove or round groove；The second experiment exemplar forms bionical jet provided with jet orifice
Structure, wherein the uniform cloth of described jet orifice is in experiment sample surface, jet orifice is the round through hole with same diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621089517.3U CN206523288U (en) | 2016-09-29 | 2016-09-29 | Based on multifunctional bionic drag reduction test device under water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482926A (en) * | 2016-09-29 | 2017-03-08 | 浙江工业大学 | Based on multifunctional bionic drag reduction test device under water |
| CN107907297A (en) * | 2017-11-06 | 2018-04-13 | 常州大学 | A kind of multi-functional composite anti-drag experiment test device |
| CN110542538A (en) * | 2019-10-15 | 2019-12-06 | 中国计量大学 | Hydrofoil device with adjustable jet hole and jet surface resistance testing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482926A (en) * | 2016-09-29 | 2017-03-08 | 浙江工业大学 | Based on multifunctional bionic drag reduction test device under water |
| CN106482926B (en) * | 2016-09-29 | 2019-04-12 | 浙江工业大学 | Based on underwater multifunctional bionic drag reduction test device |
| CN107907297A (en) * | 2017-11-06 | 2018-04-13 | 常州大学 | A kind of multi-functional composite anti-drag experiment test device |
| CN110542538A (en) * | 2019-10-15 | 2019-12-06 | 中国计量大学 | Hydrofoil device with adjustable jet hole and jet surface resistance testing device |
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