CN106596049A - Test device for non-smooth hydrofoil surface drag reduction effect test - Google Patents
Test device for non-smooth hydrofoil surface drag reduction effect test Download PDFInfo
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- CN106596049A CN106596049A CN201710058280.5A CN201710058280A CN106596049A CN 106596049 A CN106596049 A CN 106596049A CN 201710058280 A CN201710058280 A CN 201710058280A CN 106596049 A CN106596049 A CN 106596049A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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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
A test device for a non-smooth hydrofoil surface drag reduction effect test provided by the invention comprises a driving device, a transmission unit, a test unit capable of changing hydrofoil surface test sample pieces, a water supply device, a support and a controller. The driving device is provided with a torque measurement portion, the output shaft of the torque measurement portion of the driving device is coupled with the input end of the transmission unit, and the output end of the transmission unit is fixedly connected with the test unit; the water inlet pipeline and the water outlet pipeline of the water supply device are communicated with the test cavity of the test unit; the driving device, the transmission unit and the test unit are all installed at the sliding area of the support, and the water supply are is installed at the non-sliding area of the support; the control end of the driving device is electrically connected with the control end of the controller; and the signal output end of the torque measurement portion of the driving device is electrically connected with the signal input end of the controller. The test device for the non-smooth hydrofoil surface drag reduction effect test is accurate in measurement result; and moreover, the test sample pieces are easy to change and can be supplied to the test device with no need for an extra power system, and the test device for the non-smooth hydrofoil surface drag reduction effect test is in the closed circulation mode, and reduces the cost and external disturbance.
Description
Technical field
The present invention relates to a kind of experimental rig to the test of Non-smooth surface hydrofoil surface drag-reduction effect.
Background technology
Can be applicable to mainly have water hole device and sink arrangement to the experimental rig of hydrofoil surface drag-reduction effect at present.
As the policy of energy saving energy-conserving and environment-protective is gradually implemented, in field of fluid machinery, because hydrofoil surface is important
Flow passage components, its surface drag reduction is particularly important, by reducing hydrofoil skin friction resistance pair using necessary means
Significance is respectively provided with improving hydrofoil overall performance, energy saving, improving life-span etc., and how to manufacture and design can be succinctly straight
The experimental rig for seeing ground test hydrofoil surface drag-reduction effect is particularly significant.Present colleges and universities and corporate boss will be with water tunnel experiment and water
The drawbacks of groove is tested as main experimental rig, but its cost is high, space requirement is huge causes this, and means cost is huge, be difficult to
Popularization, the existing pond of China is due to the restriction of length and expense, it is difficult to meet multiple types hydrofoil surface and variable speed on a large scale
The requirement of degree.And small-sized experimental rig, the centrifugal pump closed-type experimental rig as, because its structure adopts closed device,
Although reducing impact of the extraneous factor to result of the test, while also limited to the test model that can be carried out, and cannot
Carry out the comparison of drag-reduction effect, it is difficult to carry out novel drag reduction method testing.Based on such present situation, hydrofoil surface of today subtracts
A kind of resistance highly desirable economy of research, reliability, applicability widely to study the experimental rig of drag-reduction effect, meanwhile, if
The experimental rig can change the hydrofoil surface of such as impeller, then can meet at this stage to jet and deformation wall etc. for water
The needs of the research of wing surface drag-reduction effect.
The content of the invention
It is an object of the invention to provide a kind of easily operated, handling are easy, and test is accurate, for Non-smooth surface hydrofoil table
The experimental rig that face drag-reduction effect is tested.
A kind of experimental rig to the test of Non-smooth surface hydrofoil surface drag-reduction effect of the present invention, it is characterised in that：Bag
Driving means, gear unit, the test unit of replaceable hydrofoil surface test exemplar, water supply installation, support and controller are included,
The driving means are furnished with torque rating part, and the torque rating part output shaft of driving means and the gear unit
Input axle connects, and the output end of the gear unit is affixed with the test unit；The inlet pipeline of the water supply installation, water outlet
Pipeline is connected with the test cavity of test unit；The driving means, gear unit and test unit are installed in support
Sliding area, the water supply installation is arranged on the non-slip region of support；The control end of the driving means and the controller
Control end be electrically connected；The torque rating part signal output end of the driving means is electric with the signal input part of the controller
Even；
The gear unit includes power transmission shaft and the first mounting cylinder for installing power transmission shaft, the first mounting cylinder bottom
Installed in the sliding area of the support, the power transmission shaft is rotated with first mounting cylinder sealing and is connected, the power transmission shaft
First end connects with the output shaft axle of the driving means, and test sheet is stretched in the second end of the power transmission shaft after the first mounting cylinder
It is furnished with the axle sleeve for supporting hydrofoil surface to test exemplar in the test cavity of unit, the second end end of power transmission shaft；；
The test unit include with test cavity test assembly and device for sealing magnetic fluid, the test assembly with
One end of first mounting cylinder is affixed, and the test assembly is provided with the installation through-hole passed through for the end of power transmission shaft second, the magnetic
Fluid seal apparatus are embedded in the installation through-hole, and the test assembly is by device for sealing magnetic fluid and the power transmission shaft
The second end sealing rotate connection；
The water supply installation includes storage tank, outlet pipeline and inlet pipeline, and the storage tank is by outlet pipeline and examination
The delivery port connection of top of chamber is tested, the storage tank is connected by inlet pipeline with the water inlet of test cavity；The outlet pipeline
And be equipped with controlling valve accordingly on the inlet pipeline；
The central axis of the output shaft of the driving means, the central shaft of the gear unit and the test unit
Arrangement.
First mounting cylinder includes the cylinder of open at both ends and is arranged on the tail cover of cylinder one end, the aft end
Cover seal is fixed in the first end of cylinder, and the second end of cylinder seals affixed with described test assembly one end；The power transmission shaft leads to
Cross and be mounted in the spring bearing of cylinder lumen and be connected with barrel body rotation, the first end of the power transmission shaft after the tail cover with
The output shaft axle of the driving means connects, and the second end of the power transmission shaft is stretched in the test cavity of the test assembly.
Second mounting cylinder and train head lid of the test assembly including open at one end, the blind end of the second mounting cylinder and the
Second end of one mounting cylinder is affixed, and the opening end of the second mounting cylinder seals affixed with the train head lid；Second mounting cylinder
Blind end be provided with for through the through hole at the second end of power transmission shaft, the device for sealing magnetic fluid to be arranged on the second mounting cylinder
Between blind end and power transmission shaft；The second mounting cylinder top is provided with delivery port；The train head lid is provided with water inlet.
The device for sealing magnetic fluid includes magnetic fluid, O-ring seal, permanent magnet and magnetic pole, and the whole magnetic fluid is close
Seal apparatus are arranged in the installation through-hole of test unit, and the permanent magnet closely surrounds the second end of the power transmission shaft, two magnetic
Pole point is listed in the both sides of permanent magnet, and the ring packing gap of magnetic fluid is filled out in being formed between the magnetic pole and power transmission shaft；Institute
State O-ring seal to be embedded on the outer wall of the magnetic pole, it is ensured that magnetic pole is sealed with installation through-hole.
The driving means include motor, first shaft coupling, torque signal coupler and second shaft coupling, the motor
Output shaft be connected with the input of the torque signal coupler by first shaft coupling, the torque signal coupler it is defeated
Go out end to be connected with the input of gear unit by second shaft coupling；The motor, the torque signal coupler are arranged on institute
State the sliding area of support；The signal output part of the torque signal coupler is electrically connected with the signal input part of the controller.
The support include track, slide rail and fixed block, the slide rail for support sliding area, the track as
The non-slip region of frame；The track installation on the track, and the track along power transmission direction arrange, the cunning
Rail is slidably connected with the track；It is provided with each two bolts hole of two rows on track, fixed block is consolidated at two respectively by bolt at this
It is fixed in orbit；Slide rail carries driver element, gear unit and test unit part accessory, and slide rail lower end is furnished with and track sliding
The wheel of dynamic connection, track carries train head lid and is bolted on the ground；The outlet pipeline, the inlet pipeline lead to
Cross bracing frame to be erected on the track of support.
The inwall of first mounting cylinder is provided with two spring bearings, is furnished with bearings at one of spring bearing,
Transmission shaft through-hole of the power transmission shaft in bearings, and the two keeps sealing to rotate connection.
The power transmission shaft is Step Shaft, and the second end distal end faces of power transmission shaft test exemplar equipped with anti-water-proof wing surface
The spindle nose retainer ring of axial movement, the power transmission shaft is affixed with the axle sleeve retainer ring by the sunk screw for being mounted in its end；
Second end of the power transmission shaft is bonded with the hydrofoil surface test exemplar for being enclosed within its outer wall, wherein hydrofoil surface test sample
One end of part is against on the step surface of power transmission shaft, and the other end is against on the end face of spindle nose retainer ring.
The bottom of the cylinder of first mounting cylinder is provided with the first leakage fluid dram with the first bolt；Second mounting cylinder
Bottom is provided with the second leakage fluid dram with the second bolt.
The present invention can realize testing Non-smooth surface hydrofoil surface drag-reduction effect, additionally it is possible to a part of impeller,
Blade drag-reduction effect is tested.When this experimental rig works, by the data analysis system being connected on torque signal coupler
The torque signal value that system analysis is collected when Non-smooth surface and smooth hydrofoil surface, carries out Data Comparison, draws non-light
The drag-reduction effect of water skiing wing surface.
The invention has the beneficial effects as follows：Due to the frictional resistance very little of magnet fluid sealing, moment of torsion model coupler can be passed through
Easily obtain accurate test result；Test exemplar is easily changed, and Renewal process is easy to operate time-consuming, and reduces cost is simultaneously
Experimental result is not interfered, the torque value on Non-smooth surface and corresponding smooth hydrofoil surface, Jing can be fast and easily tested
Crossing contrast reference can quantify accurate drag-reduction effect；The hydrofoil surface that test exemplar need to be only directed to manufactures corresponding axle sleeve,
Just may be mounted on this device, so versatility is good, the check experiment of multigroup multiple types can be carried out according to demand, with
To optimal selection；Water supply system can be not required to extra dynamical system and be provided to experimental rig by difference in height, and by reality
Closed cycle is reached in the running of experiment device, reduces cost and reduces external interference.
Description of the drawings
Fig. 1：It is experimental rig total figure；
Fig. 2：It is data analysis schematic diagram；
Fig. 3：It is test portion structure chart；
Fig. 4：It is effluent pipe mouth schematic diagram；
Fig. 5：It is magnet fluid sealing schematic diagram；
Fig. 6 a：It is hydrofoil surface test exemplar side view schematic diagram；
Fig. 6 b：It is impeller test exemplar side view schematic diagram；
Fig. 7：It is track right side constant cross-section schematic diagram.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings
Referring to the drawings：
A kind of experimental rig to the test of Non-smooth surface hydrofoil surface drag-reduction effect of the present invention of embodiment 1, including drive
Dynamic device 1, gear unit 2, the test unit 3 of replaceable hydrofoil surface test exemplar, water supply installation 4, support 5 and control
Device, the driving means are furnished with torque rating part, and the torque rating part output shaft of driving means 1 is single with the transmission
The input axle of unit 2 connects, and the output end of the gear unit 2 is affixed with the test unit 3；The water inlet of the water supply installation 4
Pipeline, outlet pipeline are connected with the test cavity of test unit 3；The driving means 1, gear unit 2 and test unit 3 are equal
Installed in the sliding area of support 5, the water supply installation 4 is arranged on the non-slip region of support；The control of the driving means 1
End is electrically connected with the control end of the controller；The torque rating part signal output end of the driving means 1 and the controller
Signal input part be electrically connected；
The gear unit 2 includes power transmission shaft 21 and the first mounting cylinder 22 for installing power transmission shaft, and described first installs
22 bottoms of cylinder are arranged on the sliding area of the support 5, and the power transmission shaft 21 is rotated with first mounting cylinder 22 sealing and is connected,
The first end of the power transmission shaft 21 connects with the output shaft axle of the driving means 1, and the second end of the power transmission shaft 21 runs through first
The test cavity of test unit 3 is stretched into after mounting cylinder 22, the second end end of power transmission shaft 21 is furnished with for supporting hydrofoil surface to test
The axle sleeve 213 of exemplar 6；
The test unit 3 includes the test assembly 31 with test cavity and device for sealing magnetic fluid 32, the test
Component 31 is affixed with one end of first mounting cylinder 22, and the test assembly 31 is provided with the peace passed through for the end of power transmission shaft 21 second
Dress through hole, the device for sealing magnetic fluid 32 is embedded in the installation through-hole, and the test assembly 31 is close by magnetic fluid
Seal apparatus 32 are rotated with the second end sealing of the power transmission shaft 21 and are connected；
The water supply installation 4 includes storage tank 41, outlet pipeline 42 and inlet pipeline 43, and the storage tank 41 passes through water outlet
Pipeline 42 is connected with the delivery port at the top of test cavity, and the storage tank 41 is connected by inlet pipeline 43 with the water inlet of test cavity
It is logical；Be equipped with controlling accordingly on the outlet pipeline 42 and the inlet pipeline 43 valve (44,45)；
The central shaft of the output shaft of the driving means 1, the central shaft of the gear unit 2 and the test unit 3
It is coaxially arranged.
First mounting cylinder 22 includes the cylinder of open at both ends and is arranged on the tail cover 222 of the one end of cylinder 221, institute
The first end that the sealing of tail cover 222 is fixed in cylinder 221 is stated, the second end of cylinder 221 is close with the one end of the test assembly 31
Sealing connects；The power transmission shaft 21 is connected by being mounted in the spring bearing 223 of the inner chamber of cylinder 221 and rotating with cylinder 221, the transmission
The first end of axle 221 connects after the tail cover 222 with the output shaft axle of the driving means 1, the power transmission shaft 21
Stretch in the test cavity of the test assembly 31 at the second end.
The test assembly 31 includes second mounting cylinder 311 and train head lid 312 of open at one end, the second mounting cylinder 311
Blind end it is affixed with the second end of the first mounting cylinder 22, the opening end of the second mounting cylinder 311 is sealed with the train head lid 312
It is affixed；The blind end of second mounting cylinder 311 is provided with for through the through hole at the second end of power transmission shaft 21, the magnetic fluid to be close
Seal apparatus 32 are arranged between the blind end of the second mounting cylinder 311 and power transmission shaft 21；The top of second mounting cylinder 311 is provided with out
The mouth of a river 3112；The train head lid 312 is provided with water inlet 3121.
The device for sealing magnetic fluid 32 includes magnetic fluid 321, O-ring seal 322, permanent magnet 323 and magnetic pole 324, whole
The individual device for sealing magnetic fluid 32 is arranged in the installation through-hole of test unit 3, and the permanent magnet 323 closely surrounds the biography
Second end of moving axis 21, two 324 points of magnetic poles are listed in the both sides of permanent magnet 323, and between the magnetic pole 324 and power transmission shaft 21
The ring packing gap of magnetic fluid 321 is filled out in being formed；The O-ring seal 321 is embedded on the outer wall of the magnetic pole 324, it is ensured that
Magnetic pole 324 is sealed with installation through-hole.
The driving means 1 include motor 11, first shaft coupling 12, torque signal coupler 13 and second shaft coupling
14, the output shaft of the motor 11 is connected by first shaft coupling 12 with the input of the torque signal coupler 13, described
The output end of torque signal coupler 13 is connected by second shaft coupling 14 with the input of gear unit 2；The motor 11, institute
State sliding area of the torque signal coupler 13 installed in the support 5；The signal output part of the torque signal coupler 13
It is electrically connected with the signal input part of the controller.
The support 5 includes track 51, slide rail 52 and fixed block 53, and the slide rail 52 is the sliding area of support, described
Non-slip region of the track 51 as support；The track 52 is arranged on the track 51, and the track 51 is along power
Transmission direction arranges that the slide rail 53 is slidably connected with the track 52；Each two bolts hole of two rows are provided with track 52, it is fixed
Block 53 is fixed on track 51 at two respectively by bolt at this；Slide rail 52 carries driver element, gear unit 2 and test sheet
First 3 part accessories, the lower end of slide rail 52 is furnished with the wheel being slidably connected with track 51, and track 51 carries train head lid 312 and by spiral shell
Bolt is fixed on the ground；The outlet pipeline 42, the inlet pipeline 43 are supported by corresponding water outlet bracing frame 421, water inlet
Frame 431 is erected on the track 51 of support.
The inwall of first mounting cylinder 22 is provided with two spring bearings 223, is furnished with axle at one of spring bearing 223
Support 224, transmission shaft through-hole of the power transmission shaft 21 in bearings 224 are held, and the two keeps sealing to rotate connection.
The power transmission shaft 21 is Step Shaft, and the second end distal end faces of power transmission shaft 21 are equipped with the test of anti-water-proof wing surface
The spindle nose retainer ring 211 of the axial movement of exemplar 6, the power transmission shaft 21 is by being mounted in the sunk screw 212 and the axle of its end
Set retainer ring 211 is affixed；Second end of the power transmission shaft 21 is bonded with the hydrofoil surface test exemplar 6 for being enclosed within its outer wall, its
Described in hydrofoil surface test exemplar 6 one end be against on the step surface of power transmission shaft 21, the other end is against spindle nose retainer ring 211
On end face.
The bottom of the cylinder 221 of first mounting cylinder 22 is provided with the first leakage fluid dram with the first bolt 225；Described second
The bottom of mounting cylinder 311 is provided with the second leakage fluid dram with the second bolt 313.
Specifically, with reference to Fig. 1, the storage tank 41 of water supplying unit 4 is arranged on wall, bottom perforate connection inlet pipeline
43, inlet pipeline 43 is furnished with control valve 45 and can adjust flow velocity by entering bracing frame 431 and fixing and support on inlet pipeline 43, enter
, by the joint test unit 3 of oral siphon end cap 432, wherein oral siphon end cap 432 is by bolt and train head lid 312 for water lines 43
Connection, wherein in order to prevent from revealing, in oral siphon end cap 432 and the connecting portion of train head lid 312 sealing ring is arranged.Test portion
The fluid of outflow is flowed out by outlet pipeline 42, and outlet pipeline 42 is connected by bolt with water outlet pipe end-cap 422, by bracing frame 421
Fixed and support, outlet pipeline 42 is drawn by water outlet pipe end-cap 422 and is furnished with control valve 44, and fluid is led back into storage tank 41.
With reference to Fig. 1 and 3, gear unit 2：First mounting cylinder, 22 main supporting roles in process of the test, first installs
Cylinder 22 fixes spring bearings 223, welds with bracing frame and be bolted on slide rail 52, tail cover 222 and bearings
223 are connected respectively to fix spring bearing 223 by bolt at left and right two ends with the first mounting cylinder 22, and are furnished with sealing ring to prevent
The leakage of bearing oil, spring bearing 223 is by shaft shoulder axial restraint axle, it is ensured that axle is axially without displacement during test.First peace
The bottom of fitted tube 22 is provided with the first leakage fluid dram with the first bolt 225, and screwing off can realize the injection of lubricating oil after the first bolt 225
With impurity, the outflow of dirty oil.
With reference to Fig. 1,3,4 and 5, test unit：Second mounting cylinder 311 of test assembly 31 is by bolt and the first mounting cylinder 22
Connection is simultaneously fixed on slide rail 52 by bracing frame, and device for sealing magnetic fluid 32 supports 321 to carry out by the second mounting cylinder 311 and sealing
It is axially fixed on power transmission shaft 21, device for sealing magnetic fluid 32 is due to resistance very little and good sealing effect can be when test be carried out
The sealing between runner and body is realized on the premise of hardly interference test result, the lower end of the second mounting cylinder 311 is provided with spiral shell
Bolt 3111, can screw off on bolt to release the fluid of remnants when idle.Train head lid 312 passes through oral siphon end cap 432 and enters
Water lines 43 connect and are furnished with sealing ring, and the mounting cylinder 311 of train head lid 312 and second is bolted and is furnished with sealing ring,
And be connected with track 51 and fix by bolt, outlet pipeline 42 is connected by water outlet pipe end-cap 422 with delivery port 3112, thus
Constitute the watering cycle of enclosed.With reference to Fig. 6 a, axle sleeve 213 realizes circumferentially fixed, hydrofoil surface examination with key with power transmission shaft 21
Test exemplar 6 and realized by key and axle sleeve 213 circumferentially fixed, rotate with power transmission shaft 21 jointly during test, hydrofoil surface test exemplar axle
Set specially makes for hydrous water wing surface test exemplar, can coordinate with the key of spindle nose inside it, outside and hydrofoil table
Exemplar cooperation is tested in interview, so can realize easily changing hydrofoil surface test exemplar, axle sleeve on the premise of axle is changed without
213 and hydrofoil surface test exemplar 6 be axially fixed on power transmission shaft 21 by spindle nose retainer ring 211, centre is provided with packing ring 214, axle
Head retainer ring 211 is fixed on spindle nose by sunk screw 212.The rotation direction of sunk screw 212 will with motor drive power transmission shaft 21 turn
To cooperation, it is therefore an objective to prevent from being loosened when rotating at a high speed at the trial, and sunk screw 212 to the interference of runner very
It is little.The bolt that connection oral siphon end cap 432 and train head lid 312 are pulled down when changing hydrofoil surface test exemplar is needed, rail is pulled down
Fixed block 53 on road, promotes slide rail it is moved to track right side after carrying the part such as motor jointly and is fixed with fixed block 53,
Sunk screw 212 and spindle nose retainer ring 211 and packing ring 214 are pulled down, supporting axle sleeve and hydrofoil surface test exemplar is changed, afterwards
Slide rail 52 is moved back to again and above-mentioned part is installed, and just can carry out lower whorl test.
With reference to Fig. 1, track portion I is mainly made up of slide rail 52, track 51, fixed block 53.Slide rail 52 carries motor 11, turns round
Square signal coupler 13, test portion, the lower end of slide rail 52 has wheel that above-mentioned part can be driven to slide in track 51, track 51
Carry train head lid 312 and be bolted on the ground.Each two bolts hole of two rows are provided with track 51, fixed block 53 passes through
Bolt can be fixed on track 51 at two respectively at this, play a part of fixed rack 52, wherein installed in right side bolt hole
When be, for fixed rack at the trial, to prevent it from sliding axially, installed in left side bolt hole when be to change hydrofoil table
Fixed rack 52 when exemplar is tested in interview.
The assembling process of the present invention is illustrated below in conjunction with the accompanying drawings.
With reference to Fig. 1, track 51 is bolted on the ground, slide rail 52 is inserted into track 51, install fixed block 53 in
Right side bolt hole, fixed rack 52.Test portion concrete structure is as shown in Figure 3.During installation, the first mounting cylinder 22 is installed first,
The base of the first mounting cylinder 22 is fixed on slide rail 52 by bolt, tail cover 222 is matched somebody with somebody with sealing ring merge by bolt afterwards
Be fixed on the first mounting cylinder 22, to the proper lubrication of spring bearing 223 after, by first after axle 16 and spring bearing 223 are coordinated
The openend of mounting cylinder 22 is put into, and adjusts and coordinate bearings 223 and sealing ring after good position, and is put into the first mounting cylinder 22,
And fixation is connected by bolt, screw on bolt 32.Afterwards device for sealing magnetic fluid 32 is inserted into the second mounting cylinder 311, adjusted
Sealing is installed by bolt after good position and supports 12, after by the second mounting cylinder 311 along the direct-axis of power transmission shaft 21 to inserting the first installation
Cylinder 22, installs the bolt of on the first mounting cylinder 22 and the second mounting cylinder 311, the second mounting cylinder 311 and slide rail 52, successively along key
Groove loads axle sleeve 213 and hydrofoil surface test exemplar 6, mounting gasket 214 and spindle nose retainer ring 211, and countersunk head spiral shell is screwed on after cooperation
Nail 212, screws on the second bolt 313.Afterwards train head lid 312 is directed at into the second mounting cylinder 311, sealing ring is coordinated, by spiral shell
Bolt is connected the support of train head lid 312 with track 51, train head lid 312 and the second mounting cylinder 311.Storage tank 41 is led to
Cross support to be fixed on body of wall, inlet pipeline 43 is controlled into valve 44,432 groups of oral siphon end cap with bracing frame 431, inlet pipeline is entered
Install, load storage tank 41 in, now the control valve 45 on inlet pipeline 43 need close, after sealing ring is inserted into oral siphon end cap
432, adjustment position makes oral siphon end cap 432 coordinate 22 with train head lid, is bolted and is fixed into water pipe end cap 432 and head
Portion's end cap 312.Outlet pipeline 42 is assembled with water outlet pipe holder, water outlet pipe end-cap 422, control valve 44, loads storage tank 41
Interior, adjustment position is used water pipe end cap 422 and is coordinated with outlet pipeline 42, is bolted fixation.Bracing frame 431 will be entered afterwards
It is connected with ground by bolt with water outlet pipe holder.
Motor 11 is coupled together with the input of torque signal coupler 13 by first shaft coupling 12, torque signal coupling
The output end of device 13 is connected with the input of power transmission shaft 21 by first shaft coupling 12, using gear unit, test unit as load, electricity
Machine 11 adjusts rotating speed by frequency converter, with suitable different Operation Conditions.Torque signal coupler 13 is gathered by transmitter
Signal is analyzed storage by the signal transmission for arriving to computer by LabVIEW softwares, draws the result of drag-reduction effect.
During as hydrofoil surface drag reduction testing experiment, detailed process is：According to assembling process, by the examination of Non-smooth surface hydrofoil surface
Test exemplar 6 and its supporting axle sleeve 213 is mounted on an axle, open inlet pipeline control valve 45, fill whole body, process of the test
In by regulation motor frequency converter, make motor 11 operate under several groups of operating modes of required test, under different rotating speeds by moment of torsion letter
The data storage that number coupler 13 is obtained is in a computer.After non-smooth surface hydrofoil surface test terminates, water inlet pipe is closed
Road controls valve 45, screws off the second bolt 313, fluid in excavator body, as the waste oil in the first mounting cylinder 22 need to be discharged if revolve again
Lower first bolt 225, discharges waste oil, and two bolts are screwed on after emptying.Afterwards release fixed block 53, screw off draining pipe end-cap 314 with
The bolt of delivery port 3112, the mounting cylinder 311 of train head lid 312 and second, is moved to the right side of track 51, by fixed block by slide rail 52
53 are arranged at the bolt hole of left side, with fixed rack 52, screw off sunk screw 212, remove spindle nose retainer ring 211 and packing ring 214,
Non-smooth surface hydrofoil surface test exemplar 6 and its supporting axle sleeve 213 is removed, smooth hydrofoil surface test exemplar and its supporting is loaded onto
Axle sleeve, then install packing ring 214, spindle nose retainer ring 211, sunk screw 212 successively.Fixed block 53 is released, slide rail 52 is moved back to,
Fixed block 53 is arranged at the bolt hole of right side, with fixed rack 52.Screw on draining pipe end-cap 314 and delivery port successively again
3112nd, the bolt of the mounting cylinder 311 of train head lid 312 and second, opens inlet pipeline control valve 45, fills whole body, adjusts
Motor 11, the experimental data under several groups of operating modes of test light water skiing wing surface test exemplar, and store in a computer.When all
After situation is sequentially completed, all data is carried out with check analysis process and is reached a conclusion.
During as specific hydrofoil surface drag reduction testing experiment, such as impeller 7, as shown in Figure 6 b, only need to pointedly manufacture with
Supporting axle sleeve just may be implemented in and be changed without axle on the premise of, complete different hydrofoil surface drag reduction testing experiments.
The present invention can realize testing Non-smooth surface hydrofoil surface drag-reduction effect, additionally it is possible to a part of impeller,
Blade drag-reduction effect is tested.When this experimental rig works, by the data analysis system being connected on torque signal coupler
The torque signal value that system analysis is collected when Non-smooth surface and smooth hydrofoil surface, carries out Data Comparison, draws non-light
The drag-reduction effect of water skiing wing surface.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, the protection of the present 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. it is a kind of to Non-smooth surface hydrofoil surface drag-reduction effect test experimental rig, it is characterised in that：Including driving means, transmission
Unit, the test unit of replaceable hydrofoil surface test exemplar, water supply installation, support and controller, the driving means are matched somebody with somebody
There is torque rating part, and the torque rating part output shaft of driving means connects with the input axle of the gear unit, institute
The output end for stating gear unit is affixed with the test unit；Inlet pipeline, the outlet pipeline of the water supply installation with test
The test cavity connection of unit；The driving means, gear unit and test unit are installed in the sliding area of support, described
Water supply installation is arranged on the non-slip region of support；The control end of the driving means is electrically connected with the control end of the controller；
The torque rating part signal output end of the driving means is electrically connected with the signal input part of the controller；
The gear unit includes power transmission shaft and the first mounting cylinder for installing power transmission shaft, and the first mounting cylinder bottom is installed
In the sliding area of the support, the power transmission shaft is rotated with first mounting cylinder sealing and is connected, and the first of the power transmission shaft
End connects with the output shaft axle of the driving means, and test unit is stretched in the second end of the power transmission shaft after the first mounting cylinder
It is furnished with the axle sleeve for supporting hydrofoil surface to test exemplar in test cavity, the second end end of power transmission shaft；；
The test unit include with test cavity test assembly and device for sealing magnetic fluid, the test assembly with it is described
One end of first mounting cylinder is affixed, and the test assembly is provided with the installation through-hole passed through for the end of power transmission shaft second, the magnetic fluid
Sealing device is embedded in the installation through-hole, and the test assembly pass through device for sealing magnetic fluid and the power transmission shaft the
The sealing of two ends rotates connection；
The water supply installation includes storage tank, outlet pipeline and inlet pipeline, and the storage tank is by outlet pipeline and test cavity
The delivery port connection at top, the storage tank is connected by inlet pipeline with the water inlet of test cavity；The outlet pipeline and
It is equipped with controlling valve accordingly on the inlet pipeline；
The central axis cloth of the output shaft of the driving means, the central shaft of the gear unit and the test unit
Put.
2. a kind of experimental rig to the test of Non-smooth surface hydrofoil surface drag-reduction effect as claimed in claim 1, it is characterised in that：
First mounting cylinder includes the cylinder of open at both ends and is arranged on the tail cover of cylinder one end, and the tail cover sealing is solid
The first end of cylinder is connected on, the second end of cylinder seals affixed with described test assembly one end；The power transmission shaft is by being mounted in cylinder
The spring bearing of intracoelomic cavity is connected with barrel body rotation, the first end of the power transmission shaft after the tail cover with the driving
The output shaft axle of device connects, and the second end of the power transmission shaft is stretched in the test cavity of the test assembly.
3. a kind of experimental rig to the test of Non-smooth surface hydrofoil surface drag-reduction effect as claimed in claim 1, it is characterised in that：
The test assembly includes second mounting cylinder and train head lid, the blind end of the second mounting cylinder and the first mounting cylinder of open at one end
The second end it is affixed, the opening end of the second mounting cylinder and the train head lid seal affixed；The blind end of second mounting cylinder
Be provided with for through the through hole at the second end of power transmission shaft, the device for sealing magnetic fluid be arranged on the blind end of the second mounting cylinder with
Between power transmission shaft；The second mounting cylinder top is provided with delivery port；The train head lid is provided with water inlet.
4. a kind of experimental rig to the test of Non-smooth surface hydrofoil surface drag-reduction effect as claimed in claim 3, it is characterised in that：
The device for sealing magnetic fluid includes magnetic fluid, O-ring seal, permanent magnet and magnetic pole, and the whole device for sealing magnetic fluid sets
Put in the installation through-hole of test unit, the permanent magnet closely surrounds the second end of the power transmission shaft, two magnetic poles point are listed in
The ring packing gap of magnetic fluid is filled out in being formed between the both sides of permanent magnet, and the magnetic pole and power transmission shaft；The O-shaped sealing
Circle is embedded on the outer wall of the magnetic pole, it is ensured that magnetic pole is sealed with installation through-hole.
5. a kind of experimental rig to the test of Non-smooth surface hydrofoil surface drag-reduction effect as claimed in claim 1, it is characterised in that：
The driving means include motor, first shaft coupling, torque signal coupler and second shaft coupling, the output shaft of the motor
It is connected with the input of the torque signal coupler by first shaft coupling, the output end of the torque signal coupler passes through
Second shaft coupling is connected with the input of gear unit；The motor, the torque signal coupler are arranged on the support
On sliding area；The signal output part of the torque signal coupler is electrically connected with the signal input part of the controller.
6. a kind of experimental rig to the test of Non-smooth surface hydrofoil surface drag-reduction effect as claimed in claim 5, it is characterised in that：
The support include track, slide rail and fixed block, the slide rail for support sliding area, non-slip of the track as support
Dynamic region；The track installation on the track, and the track along power transmission direction arrange, the slide rail with it is described
Track is slidably connected；It is provided with each two bolts hole of two rows on track, fixed block is fixed on track at two at this respectively by bolt
On；Slide rail carries driver element, gear unit and test unit part accessory, and slide rail lower end is furnished with and is slidably connected with track
Wheel, track carries train head lid and is bolted on the ground；The outlet pipeline, the inlet pipeline pass through bracing frame
It is erected on the track of support.
7. a kind of experimental rig to the test of Non-smooth surface hydrofoil surface drag-reduction effect as claimed in claim 1, it is characterised in that：
The inwall of first mounting cylinder is provided with two spring bearings, is furnished with bearings, the transmission at one of spring bearing
Transmission shaft through-hole of the axle in bearings, and the two keeps sealing to rotate connection.
8. a kind of experimental rig to the test of Non-smooth surface hydrofoil surface drag-reduction effect as claimed in claim 7, it is characterised in that：
The power transmission shaft is Step Shaft, and the second end distal end faces of power transmission shaft are equipped with anti-water-proof wing surface test exemplar axial movement
Spindle nose retainer ring, the power transmission shaft is affixed with the axle sleeve retainer ring by the sunk screw for being mounted in its end；The transmission
Second end of axle is bonded with the hydrofoil surface test exemplar for being enclosed within its outer wall, wherein one end of exemplar is tested on the hydrofoil surface
It is against on the step surface of power transmission shaft, the other end is against on the end face of spindle nose retainer ring.
9. a kind of experimental rig to the test of Non-smooth surface hydrofoil surface drag-reduction effect as claimed in claim 2, it is characterised in that：
The bottom of the cylinder of the first mounting cylinder is provided with the first leakage fluid dram with the first bolt；The bottom of the second mounting cylinder is provided with the second spiral shell of band
Second leakage fluid dram of bolt.
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| CN201710058280.5A CN106596049B (en) | 2017-01-23 | 2017-01-23 | Testing device for testing drag reduction effect of non-smooth hydrofoil surface |
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| CN201710058280.5A CN106596049B (en) | 2017-01-23 | 2017-01-23 | Testing device for testing drag reduction effect of non-smooth hydrofoil surface |
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| CN106596049B CN106596049B (en) | 2023-03-31 |
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| CN108007824A (en) * | 2017-12-29 | 2018-05-08 | 浙江工业大学 | A kind of fluid viscosity measuring device and test method |
| CN108194385A (en) * | 2017-12-28 | 2018-06-22 | 浙江工业大学 | Two phase flow fluid machinery flow passage components polishing machine test device and test method |
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| CN114878054A (en) * | 2022-06-16 | 2022-08-09 | 中国船舶科学研究中心 | Torque measuring device and method applied to material resistance reduction performance test |
| CN115493803A (en) * | 2022-08-26 | 2022-12-20 | 哈尔滨工程大学 | Rotary force measuring device capable of maintaining airtightness and force measuring method |
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| CN107907297A (en) * | 2017-11-06 | 2018-04-13 | 常州大学 | A kind of multi-functional composite anti-drag experiment test device |
| CN108194385A (en) * | 2017-12-28 | 2018-06-22 | 浙江工业大学 | Two phase flow fluid machinery flow passage components polishing machine test device and test method |
| CN108194385B (en) * | 2017-12-28 | 2024-03-26 | 浙江工业大学 | Device and method for testing wear performance of two-phase flow fluid machinery flow-through part |
| CN108007824A (en) * | 2017-12-29 | 2018-05-08 | 浙江工业大学 | A kind of fluid viscosity measuring device and test method |
| CN108982059A (en) * | 2018-08-27 | 2018-12-11 | 浙江工业大学 | A kind of deformation wall surface fluid friction resistance test device and simulator |
| CN108982059B (en) * | 2018-08-27 | 2023-10-20 | 浙江工业大学 | Device for testing friction resistance of fluid on deformed wall surface and simulation device |
| CN110849581A (en) * | 2019-11-20 | 2020-02-28 | 浙江工业大学 | Deformation wall resistance testing device based on fish body surface structure |
| CN110864873A (en) * | 2019-11-20 | 2020-03-06 | 浙江工业大学 | Small-size closed water tunnel structure based on undulant wall resistance test |
| CN110864873B (en) * | 2019-11-20 | 2024-05-31 | 浙江工业大学 | Small-size closed water tunnel structure based on undulant wall resistance test |
| CN110849581B (en) * | 2019-11-20 | 2024-06-11 | 浙江工业大学 | Deformed wall surface resistance testing device based on fish body surface structure |
| CN114878054A (en) * | 2022-06-16 | 2022-08-09 | 中国船舶科学研究中心 | Torque measuring device and method applied to material resistance reduction performance test |
| CN115493803A (en) * | 2022-08-26 | 2022-12-20 | 哈尔滨工程大学 | Rotary force measuring device capable of maintaining airtightness and force measuring method |
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