CN105784233A - Test device and test method for interactive influence of axial pressure flow and circumferential shear flow on clearance flow resistance of each other - Google Patents
Test device and test method for interactive influence of axial pressure flow and circumferential shear flow on clearance flow resistance of each other Download PDFInfo
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- CN105784233A CN105784233A CN201610200454.2A CN201610200454A CN105784233A CN 105784233 A CN105784233 A CN 105784233A CN 201610200454 A CN201610200454 A CN 201610200454A CN 105784233 A CN105784233 A CN 105784233A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0009—Force sensors associated with a bearing
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- Fluid Mechanics (AREA)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a test device and a test method for interactive influence of axial pressure flow and circumferential shear flow on clearance flow resistance of each other. The friction of end cover dynamic sealing on a rotor and the resistance torque of end clearance fluid on a flywheel are overcome, the axial force and moment of Taylor-Couette-Poiseuille flow on the cylindrical surface of the flywheel under different flow channel structures, rotor speeds, overflowing surfaces and axial flows are measured, and therefore, the laws of interactive influence of axial pressure flow and circumferential shear flow on axial flow resistance and circumferential resistance moment are researched, and technical parameters are provided for the design and optimization of the shielded motor section flow channel structure of a high-power shielded motor main pump.
Description
Technical field
The present invention relates to the technical field of mechanical test device design, be specifically related to axial compressive force stream and cut with circumference
Cut the test device and method of stream reciprocal effect clearance flow dynamic resistance to each other.
Background technology
The power source that core main pump circulates as nuclear reactor coolant cooling medium, is described as nuclear reactor
Heart.Current in-service nuclear reactor main pump, many employing shaft seal pumps are as Core cooling agent main pump.All previous core
Nuclear Safety is had higher requirement by the appearance of accident, in order to improve security of system in principle, once
The shaft seal pump being widely used is replaced by leak free canned motor pump because of these technological difficulties of its high pressure dynamic sealing,
Occur on Generation Ⅲ.The Coolant Pump conversion by pressure boundary, by high-temperature, high pressure fluid
Introduce motor internal, use static seal to replace movable sealing, instead of in shaft seal pump not with complete pressure boundary
Complete pressure boundary, thus improve reactor core safety.
But the fluid radiated by High Temperature High Pressure height introduces motor internal, it will have a strong impact on the exhausted of motor winding
Edge performance, therefore adds one layer of shield cover structure between main pump motor rotor respectively, but housing
Owing to the effect of electromagnetic eddy will produce substantial amounts of heat.If these heats can not be pulled away in time and will lead
Send a telegraph the rising of machine internal temperature, water lubriucated bearing lubricating fluid temperature raises, thus motor and bearing is waited pass
The properly functioning of key member brings serious harm.It is thus desirable to be passed through low-temperature cooling media to enter electric machine rotor
Between gap, heat is taken away.
But the flowing in rotor housing gap is gap eddy flow, axial compressive force flowing is moved with Sheared axial flow
Intercouple.Circumference shear flow can significantly increase the resistance of axially flowing, thus causes axial flow to reduce；
Axially the drag torque of circumference also can be impacted by flowing, thus affects main pump running down performance and power consumption.Cause
Research axial compressive force is flowed and the circumference shear flow reciprocal effect rule to flow resistance each other by this invention,
Technical parameter is provided for the structure design and optimization of cold runner system in shield electric machine main pump.
Summary of the invention
Present invention aim at providing Taylor-Al Kut-Poiseuille flow disorder of internal organs axial compressive force stream to hand over circumference shear flow
Affect the test device of flow resistance each other mutually, be difficult to accurately measure in Gap Annular Flow axially press with supplementary prior art
Power flowing and the circumference shear flow reciprocal effect rule to axial flow resistance Yu circumferential flow drag torque,
Thus the structure design and optimization of cold runner system provides technical parameter in being difficult for high-power shield electric machine main pump
Technical matters.
The object of the invention is accomplished by:
A kind of axial compressive force stream and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, wrap
Include upper end cover, bottom end cover, shell, rotating shaft, described upper end cover, bottom end cover lid be located at described shell upper,
A closing chamber is formed on lower end；The upper and lower end of described rotating shaft is located in described upper end cover and bottom end cover respectively
On, and rotate relative to described upper end cover and bottom end cover, described rotating shaft is also connected with external driver device and connects；
Described bottom end cover is provided with liquid run-in-hole, and described upper end cover is provided with liquid outflow port, and described liquid flows out
Effusion meter it is provided with on hole；
Arrange in described closing chamber the upper fluid separator that coaxial sleeve is located in rotating shaft, lower fluid barrier,
Flywheel, multi-axis force transducer；Described flywheel is an airtight hollow structure, and described multi-axis force transducer is positioned at
In described flywheel, and described multi-axis force transducer is fixed with described rotating shaft and is connected, and described multi-axis force transducer is again
Fix with described flywheel and be connected；Described upper fluid separator and described lower fluid barrier cover respectively be located at described
On the upper and lower side of flywheel, and and described flywheel between unable transmission；Described upper fluid separator and lower fluid
Separator is fixing with described rotating shaft to be connected.
It is preferred that at the upper end-face edge of described flywheel with described upper fluid separator lower edge at, described in fly
It is provided with, with at described lower fluid barrier upper end-face edge, the dentation knot matching interspersed at the lower edge of wheel
Structure.
It is preferred that be provided with the first bulge-structure on described flywheel upper end-face edge, under described upper fluid separator
Being provided with the first groove structure matched with the first bulge-structure on end margin, described first bulge-structure is stretched
Enter in described first groove structure；
The second groove structure it is provided with, on described lower fluid barrier upper end-face edge in described flywheel lower edge
Being provided with the second bulge-structure matched with the second groove structure, described second bulge-structure puts in described
In two groove structures.
It is preferred that described flywheel includes flywheel cavity, upper cover plate, lower cover, described flywheel cavity is one
The barrel-like structure of both ends open, described upper cover plate, lower cover cover the upper and lower side being located at described flywheel cavity respectively
A confined space is formed on opening；Described multi-axis force transducer is positioned at described flywheel cavity, and by a spoke
Plate is connected on the medial wall of flywheel cavity.
It is preferred that be provided with oil enveloping structure between described upper cover plate, lower cover and described rotating shaft, described on
It is provided with O RunddichtringO between cover plate, lower cover and described flywheel cavity.
It is preferred that be provided with support flying wheel between the upper and lower end of described flywheel and described rotating shaft, reduce and rub
The clutch shaft bearing assembly wiped.
It is preferred that described clutch shaft bearing assembly includes:
Bearing block, described bearing sleeve is located in described rotating shaft, and one end of described bearing block is connected to described
On the upper end of flywheel or the inner surface of lower end；
Linear bearing, is arranged between described bearing block and described rotating shaft and is axially positioned by a circlip.
It is preferred that be also arranged with a lasso on the outer ring of described flywheel, described lasso is dismountable is arranged on institute
Stating on flywheel, described lasso is for changing the surface topography of described flywheel outer ring；And described lasso can be in dismounting
Realize in the case of the internal structure of described flywheel changing.
It is preferred that described rotating shaft is hollow-core construction, with described multi-axis force transducer correspondence position in described rotating shaft
Place is provided with the radial hole that the central through hole with described rotating shaft communicates, and the holding wire of described multi-axis force transducer is worn
Cross described radial hole, central through hole outwards exports.
It is preferred that the medial wall of described shell is provided with a sleeve, removable between described sleeve and described shell
Unload connection, described sleeve for change the spacing between described flywheel and described shell and change described outside
The surface topography of shell inner surface.
It is preferred that between described upper end cover, bottom end cover and described rotating shaft, described upper end cover and described shell it
Between, be provided with sealing structure between described bottom end cover and described shell.
It is preferred that be additionally provided with the second bearing assembly between the lower end of described rotating shaft and described bottom end cover；Described
Bearing assembly includes that deep groove ball bearing and bearing plate, described deep groove ball bearing are arranged on institute by bearing plate
Stating on bottom end cover, described deep groove ball bearing is arranged between described rotating shaft and described bottom end cover.
A kind of band return port card Gap Annular Flow radial pressure flow resistance and asymmetric shaft are to force test method, and it is special
Levy and be, the axial compressive force stream described in any one and the circumference mutual shadow of shear flow in employing claim 1-12
Ringing the test device of clearance flow dynamic resistance to each other, method of testing comprises the following steps:
A, by the annexation described in claim 1, each parts are attached；In described closing chamber
And it is hydraulically full in the gap between flywheel and upper fluid separator, lower fluid barrier；
The buoyancy suffered by the deadweight that power is described flywheel of described multi-axis force transducer and flywheel is acted on time static
Make a concerted effort F1, time static, flywheel is acted on by drag torque；
B, flywheel transfixion, regulate liquid run-in-hole, the flow Q of liquid outflow port, and record difference
The axial force F measured by described multi-axis force transducer corresponding under flow Q；
C, startup external driver device, flywheel driven rotates；By regulation liquid run-in-hole, liquid outflow port
Flow so that closing chamber indoor liquid axial flow is zero, so that only have axially on flywheel lateral surface
Shear flow, owing to the most axially flowing, therefore axial force suffered by flywheel will not change；
The rotating speed of regulation external driver device, and record what described multi-axis force transducer under different rotating speeds recorded
Torque G；
D, by regulation liquid run-in-hole, the flow of liquid outflow port so that close chamber indoor liquid and axially flow
Dynamic, the rotating speed of regulation external driver device is first rotating speed corresponding in step c, regulates axle successively simultaneously
It is axial flow corresponding in step b to flow, records the axial force F corresponding to multi-axis force transducer respectively
With torque G；
E, repetition step d, be the individual of correspondence in step c by the rotational speed regulation of step d peripheral driving means
Rotating speed, and record the axial force F corresponding to multi-axis force transducer and torque G；
F, the data recorded carried out list records get off in above steps, and these data are processed,
Rotating speed nondimensionalization obtains Taylor number Ta, and axial flow nondimensionalization obtains reynolds number Re, finally gives this
Flow to the torque corresponding with Taylor number Ta of different Reynolds number Re of structure and axial force.
It is preferred that the medial wall of described shell is provided with a sleeve, removable between described sleeve and described shell
Unload connection, described sleeve for change the spacing between described flywheel and described shell and change described outside
The surface topography of shell inner surface；
Method of testing also includes step g: change the size of the thickness of described sleeve, changes outside shell and flywheel
The parameter of the gap flow passage structure between sidewall, and repeat step a-f；Different flow passage structures uses dimensionless
NumberriFor the inside radius of gap flow passage structure, r0Outer radius for gap flow passage structure；The most at last
Arrive the torque corresponding with Taylor number Ta of different Reynolds number Re under different flow passage structures and axial force；By dividing
Analysis data, just it appeared that axial compressive force stream with circumference the shear flow reciprocal effect relation to flow resistance each other.
It is preferred that the liquid in described step b uses water.
Due to the fact that employing above technical scheme, be allowed to compared with prior art, have the following advantages that and
Good effect:
1, the present invention provide axial compressive force stream with circumference shear flow reciprocal effect flow resistance each other test device
Taylor-Al Kut-Poiseuille flow disorder of internal organs axle when variable speed, axial flow, flow passage structure, wetted surfaces can be realized
The reciprocal effect rule of axial flow resistance with the circumference moment of resistance is tested with circumference shear flow to pressure current, for
The design and optimization of the cold flow passage structure of high-power shield electric machine provides technical parameter.
2, the test device of the axial compressive force stream that the present invention provides and circumference shear flow reciprocal effect flow resistance each other
Flow resistance reciprocal effect rule each other can be fitted by method of testing by the axial compressive force stream of the present invention with circumference shear flow
Promote by scope, provide reference technique for the structure design of interior cold runner during high-power shield electric machine main pump dilatation
Parameter.
Accompanying drawing explanation
In conjunction with accompanying drawing, by hereafter state detailed description, can be more clearly understood that the present invention's is above-mentioned and other
Feature and advantage, wherein:
Fig. 1 is the knot of axial compressive force stream of the present invention and the test device of circumference shear flow reciprocal effect flow resistance each other
Structure schematic diagram；
Fig. 2 is the axial compressive force stream test device with circumference shear flow reciprocal effect flow resistance each other of the present invention
Part-structure schematic diagram.
Detailed description of the invention
See the accompanying drawing illustrating the embodiment of the present invention, the present invention is described in more detail.But, this
Bright can realize in many different forms, and should not be construed as the embodiment by herein proposing and limited.Phase
Instead, proposing these embodiments is to reach fully and complete disclosure, and makes the technology people of the art
Member understands the scope of the present invention completely.In these accompanying drawings, for clarity sake, may be exaggerated layer and region
Size and relative size.
A kind of axial compressive force stream that the present invention provides and circumference shear flow reciprocal effect clearance flow dynamic resistance to each other
Test device can realize Taylor-Al Kut-poiseuille when variable speed, axial flow, flow passage structure, wetted surfaces
Flowing Axial Force stream and the circumference shear flow reciprocal effect rule to axial flow resistance with the circumference moment of resistance
Test, the design and optimization for the cold flow passage structure of high-power shield electric machine provides technical parameter.The present invention carries
The method of testing of the test device of the axial compressive force stream of confession and circumference shear flow reciprocal effect flow resistance each other can be by this
The scope of application of flow resistance reciprocal effect rule each other is promoted by the axial compressive force stream of invention with circumference shear flow, for
During high-power shield electric machine main pump dilatation, the structure design of interior cold runner provides reference technique parameter.
Below in conjunction with the preferred embodiments of the present invention, the present invention will be further described.
Embodiment 1
With reference to Fig. 1-2, the invention provides a kind of axial compressive force stream and circumference shear flow reciprocal effect gap each other
The test device of flow resistance, including upper end cover 16, bottom end cover 41, shell 25, rotating shaft 1, shell 25 is presented
The structure of the equal opening in lower end, upper end cover 16, bottom end cover 41 lid is located on the upper and lower side opening of shell 25 composition one
Close chamber.The upper and lower side of rotating shaft 1 is located on upper end cover 16, bottom end cover 41 respectively, and rotating shaft 1 can be relative
Rotating in upper end cover 16, bottom end cover 41, rotating shaft 1 is also connected with an external driver device；Liquid it is provided with on bottom end cover
Body run-in-hole 42, upper end cover 16 is provided with liquid outflow port, and liquid outflow port is provided with effusion meter 40, liquid
Body flows to close in chamber from liquid run-in-hole 42, flows out from liquid outflow port and closes chamber.In closing chamber
Arrange upper fluid separator 19 that coaxial sleeve is located in rotating shaft 1, lower fluid barrier 28, flywheel, multi-axial forces pass
Sensor 11, flywheel is an airtight hollow structure, and multi-axis force transducer 11 is positioned at flywheel, and multi-axial forces passes
Sensor 11 is fixing with rotating shaft 1 to be connected, and multi-axis force transducer 11 is fixing with flywheel again to be connected；Upper fluid separator 19
Cover respectively with lower fluid barrier 28 and be located on the upper and lower side of flywheel, and and flywheel between unable transmission；On
Fluid barrier 19 and lower fluid barrier 28 are fixed with rotating shaft and are connected.
In the present embodiment, sealing device 17, bottom end cover it are provided with between the upper end of upper end cover 16 and shell 25
It is provided with sealing device 29, for ensureing to close the sealing of chamber between 41 and shell 25 lower end；Wherein,
Sealing device 17, sealing device 29 preferably use static seal structure, such as rubber ring etc..
In the present embodiment, closing chamber is stretched out through upper end cover 16 in rotating shaft 1 upper end, and connects external drive dress
Put；It is provided with sealing device 15 between rotating shaft 1 and upper end cover 16, thus ensure that the sealing closing chamber,
Prevent liquid from spilling；Wherein, preferred sealing device 15 is movable sealing structure, such as oil-sealing arrangement etc..On
Being provided with liquid outflow port on end cap 16, wherein the number that arranges of liquid outflow port is not restricted；Liquid flows out
Hole connects outlet conduit 2, is discharged by liquid by outlet conduit 2, and effusion meter may be provided at outlet conduit 2
End.
In the present embodiment, the lower end of rotating shaft 1 is arranged on bottom end cover 41, sets between rotating shaft 1 and bottom end cover 41
Being equipped with the second bearing assembly, the second bearing assembly includes bearing 36, bearing plate 37；Concrete, reference
Fig. 2, rotating shaft 1 lower end base is arranged with a locking nut 35 and moves axially for limiting rotating shaft 1；Rotating shaft 1 time
It is provided with sealing device and bearing 36 between end and bottom end cover 41, and bearing 36 is positioned on the downside of sealing device；Close
Seal apparatus includes movable sealing structure 38 and sealing clamp 34, and movable sealing structure 38 is pressed on down by sealing clamp 34
On end cap 41；Bearing 36 is pressed on sealing clamp 34 further through a bearing plate 37, sealing clamp 34, axle
Bearing plate 37 is fixed on bottom end cover 4 by a screw order；Wherein, bearing 36 preferably employs deep groove ball bearing.
It is the stability for increasing rotor-support-foundation system that the present invention arranges bearing 36 between rotating shaft 1 and bottom end cover 41.
Further, bearing 36 is dismantled together with bottom end cover 41, act as increasing the stability of rotor-support-foundation system.
In the present embodiment, flywheel sleeve is located in rotating shaft 1, the hollow structure that flywheel generally seals.Specifically
, flywheel includes flywheel cavity 6, upper cover plate 5, lower cover 27；Flywheel cavity 6 is the bucket of a both ends open
Shape structure, upper cover plate 5, lower cover 27 cover respectively and are located on the upper and lower side opening of flywheel cavity 6, thus form
One confined space.
Further, upper cover plate 5, lower cover 27 are fixed by screws on flywheel cavity 6, and upper cover plate 5 with
It is provided with sealing device 21 between flywheel cavity 6, between upper cover plate 5 and rotating shaft 1, is provided with sealing device 4, under
It is provided with sealing device 26 between cover plate 27 and flywheel cavity 6, between lower cover 27 and rotating shaft 1, is provided with sealing
Device 32, thus ensure that the sealing that flywheel is overall；Wherein, sealing device 21, sealing device 26 can be O
RunddichtringO, sealing device 4, sealing device 32 can be oil enveloping structure, certain above-mentioned sealing device also dependent on
Concrete condition designs, and is not restricted.
Further, it is provided with support flying wheel between upper and lower end and the rotating shaft 1 of flywheel, reduces the of friction
One bearing assembly, clutch shaft bearing assembly includes bearing block 8,31 and linear bearing 9,39.Below with on flywheel
As a example by clutch shaft bearing assembly between end and rotating shaft 1, being described in detail, bearing block 8 is positioned at flywheel,
Bearing block 8 is set in rotating shaft 1, and the upper end of bearing block 8 is fixed on the inner surface of flywheel upper end, and concrete can
Being arranged on the lower surface of upper cover plate 5, the upper end of bearing block 8 can be pressed on sealing device 4 simultaneously, plays solid
Determine the effect of sealing device 4；Linear bearing 9 is arranged between bearing block 8 and rotating shaft 1, and by an elastic gear
Circle 10 axially carries out spacing, it is achieved thereby that linear bearing 9 is fixing.The present invention is by rotating shaft 1 and flywheel
Linear bearing 9,39 is set between the upper and lower ends, on the one hand serves the effect of support flying wheel, another reduction of leavening dough
Friction between flywheel upper and lower side and rotating shaft 1.
In the present embodiment, multi-axis force transducer 11 is positioned at inside flywheel, and connects flywheel by a disc 34
The medial wall of cavity.Concrete, disc 34, multi-axis force transducer 11 are all set in rotating shaft 1, disc 34
Outer ring is fixing with the medial wall of flywheel to be connected, and the lower surface of multi-axis force transducer 11 is fixing with a flange 13 to be connected,
Flange 13 is set in rotating shaft 1, is connected by key 12, flange 13 times between the inner ring of flange 13 with rotating shaft 1
End is additionally provided with a locking nut 14 being set in rotating shaft 1, thus multi-axis force transducer 11 is fixed to rotating shaft 1
On；The upper surface of multi-axis force transducer 11 is fixed on the lower surface of disc 34, it is achieved thereby that multi-axial forces passes
Sensor 11 is fixed be connected with flywheel, rotating shaft 1.When rotating shaft 1 rotates when, carried by multi-axis force transducer 11
Dynamic flywheel turns,
In the present embodiment, multi-axis force transducer 11 for fluid matasomatism in the circumferential stress of flywheel lateral surface and
The anabolic effect power of axial stress and the measurement of moment；In the present embodiment, rotating shaft 1 may be designed as hollow-core construction,
Rotating shaft 1 offers radial hole in flywheel inside cavity section and connects with central through hole, the letter of multi-axis force transducer 11
The central through hole that number line enters rotating shaft 1 through radial hole outwards transmits.
In the present embodiment, upper fluid separator 19 in a downward opening lid, lower fluid barrier assembly 28
In flap, upper fluid separator 19, lower fluid barrier 28 are set in rotating shaft 1, and are separately positioned on and fly
The upper and lower sides of wheel；The inner ring of upper fluid separator 19 is fixed in rotating shaft 1 by key 18 and locking nut 20, under
Fluid barrier 28 is directly fixed by screws in rotating shaft 1；Certainly, upper fluid separator 19, lower fluid every
Off member 28 is not limited to the above with the fixed form of rotating shaft 1, can be adjusted as the case may be.
In the present embodiment, at the upper end-face edge of flywheel with upper fluid separator 19 lower edge at, flywheel
At lower edge and it is provided with, at lower fluid barrier 28 upper end-face edge, the interspersed dentalation that matches, uses
Flywheel upper and lower end face and upper fluid separator 19, lower fluid barrier 28 is caused under the effect reducing centrifugal force
Between fluid flow out outward, thus affect test structure.
Further, flywheel upper end-face edge is provided with the first bulge-structure 44, upper fluid separator 19 lower end
Being provided with the first groove structure 43 matched with the first bulge-structure 44 on edge, the first bulge-structure 44 is stretched
Enter in the first groove structure 43；The second groove structure 45, lower fluid barrier it is provided with in flywheel lower edge
The second bulge-structure 46 matched with the second groove structure 45, the second protruding knot it is provided with on 28 upper end-face edges
Structure 46 puts in described second groove structure 45；And ensure flywheel and upper fluid separator 19, lower fluid isolation
Transmission the most unable between part 28.
In the present embodiment, the outer ring of flywheel being also arranged with a lasso 23, lasso 23 is dismountable to be arranged on
On flywheel lateral surface, lasso 23 can be replaced in the case of not dismantling flywheel internal structure；Lasso 23
The surface topography in face, outer ring convertible, different lassos 23 represents this different configuration of surface, lasso 23
Arrange effect be study the different surface morphology affecting laws to flow resistance.
In the present embodiment, the medial wall of shell 25 is provided with a sleeve 22, between sleeve 22 and shell 15
Removably connecting, lasso 22 internal diameter size is replaceable, and lasso 22 inner peripheral surface surface topography is variable, sleeve
22 for changing the spacing between flywheel and shell 25 and changing the surface topography of shell 25 inner surface,
To realize the combined test of flow passage structure and wetted surfaces.
The torque transmission paths of the test device of the present invention is: the moment of torsion of peripheral driver output is delivered to rotating shaft
1, part moment of torsion is delivered to upper fluid separator 19 by key 18 by rotating shaft 1, and rotating shaft 1 will by screw 33
Part moment of torsion is delivered to lower fluid barrier 28, and remainder moment of torsion is delivered to flange by key 12 by rotating shaft 1
13, this part moment of torsion is passed to disc 24 by multi-axis force transducer 11 by flange 13, and disc 24 is by moment of torsion
Passing to flywheel cavity 6 again, flywheel cavity 6 delivers torque to outer ferrule 23 by screw 7, completes
Flywheel, upper fluid separator 19, the driving of lower fluid barrier 28.
The purpose of the present embodiment is to provide Taylor-Al Kut-Poiseuille flow disorder of internal organs axial compressive force stream to shear with circumference
The test device of stream reciprocal effect flow resistance each other, is difficult to accurately measure Gap Annular Flow axis with supplementary prior art
The reciprocal effect of axial flow resistance with circumferential flow drag torque is advised with circumference shear flow to pressure flow
Rule, thus the structure design and optimization offer technology of cold runner system in being difficult for high-power shield electric machine main pump
The technical matters of parameter.
Embodiment 2
Present invention also offers a kind of axial compressive force stream and circumference shear flow reciprocal effect clearance flow dynamic resistance to each other
Method of testing, use the axial compressive force stream described in embodiment 1 and circumference shear flow reciprocal effect gap each other
The test device of flow resistance.
This method of testing specifically includes following steps:
A, by the annexation in embodiment 1, each parts are attached；To close in chamber and flywheel with
In gap between upper fluid separator, lower fluid barrier hydraulically full；
In the present embodiment, liquid directly uses water, energy-conserving and environment-protective；
The F1 that makes a concerted effort of the deadweight that power is flywheel of multi-axis force transducer and the buoyancy of flywheel is acted on time static, quiet
Time only, flywheel is acted on by drag torque；
B, flywheel transfixion, regulate liquid run-in-hole, the flow Q of liquid outflow port, and record difference
The axial force F measured by described multi-axis force transducer corresponding under flow Q；
C, startup external driver device, flywheel driven rotates；By regulation liquid run-in-hole, liquid outflow port
Flow so that closing chamber indoor liquid axial flow is zero, so that only have axially on flywheel lateral surface
Shear flow, owing to the most axially flowing, therefore axial force suffered by flywheel will not change；
The rotating speed of regulation external driver device, and record what described multi-axis force transducer under different rotating speeds recorded
Torque G；
D, by regulation liquid run-in-hole, the flow of liquid outflow port so that close chamber indoor liquid and axially flow
Dynamic, the rotating speed of regulation external driver device is first rotating speed corresponding in step c, regulates axle successively simultaneously
It is axial flow corresponding in step b to flow, records the axial force F corresponding to multi-axis force transducer respectively
With torque G；
E, repetition step d, be the individual of correspondence in step c by the rotational speed regulation of step d peripheral driving means
Rotating speed, and record the axial force F corresponding to multi-axis force transducer and torque G；
F, the data recorded are carried out list records get off in above steps, finally give below table (certain
Measured data of experiment under one stationary flowpath structure):
In table: m is Flow-rate adjustment group number, n is rotational speed regulation group number.
Again these data in table are processed, rotating speed nondimensionalization are obtained Taylor number Ta, axial flow without
Dimension obtains reynolds number Re, finally gives this different Reynolds number Re flowing to structure corresponding with Taylor number Ta
Torque and axial force.
Further, this method of testing also includes step g: changes the size of the thickness of described sleeve, changes
The parameter of the gap flow passage structure between shell and flywheel lateral wall, and repeat step a-f；Different runner knots
Structure uses dimensionless numberriFor the inside radius of gap flow passage structure, r0Outer half for gap flow passage structure
Footpath；Obtain the torque corresponding with Taylor number Ta of different Reynolds number Re under different flow passage structure and axle the most at last
Xiang Li；By analytical data, just it appeared that axial compressive force stream and circumference shear flow are to flow resistance each other
Reciprocal effect relation.
In the preferred embodiment of the invention, step c peripheral driving means acceleration and deceleration speed can control.
In the preferred embodiment of the invention, the nondimensionalization method in step f can be by method of testing of the present invention
Result be generalized to other proportional sizes devices.
In the preferred embodiment of the invention, the flow passage structure nondimensionalization method in step g is by further genralrlization
The range of application of method of testing of the present invention.
Those skilled in the art should be understood that the present invention can so that other concrete forms many realize not
Depart from the spirit or scope of itself.Although having been described for the case study on implementation of the present invention, it should be understood that the present invention is not
These embodiments should be limited to, those skilled in the art can define such as appended claims this
Make within bright spirit and scope and changing and modifications.
Claims (15)
1. an axial compressive force stream and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterized in that, including upper end cover, bottom end cover, shell, rotating shaft, described upper end cover, bottom end cover lid are located on the upper and lower end of described shell composition one closing chamber；The upper and lower end of described rotating shaft is located on described upper end cover and bottom end cover respectively, and rotates relative to described upper end cover and bottom end cover, and described rotating shaft is also connected with external driver device and connects；Described bottom end cover is provided with liquid run-in-hole, and described upper end cover is provided with liquid outflow port, and described liquid outflow port is provided with effusion meter；
The upper fluid separator that coaxial sleeve is located in rotating shaft, lower fluid barrier, flywheel, multi-axis force transducer are set in described closing chamber；Described flywheel is an airtight hollow structure, and described multi-axis force transducer is positioned at described flywheel, and described multi-axis force transducer is fixed with described rotating shaft and is connected, and described multi-axis force transducer is fixing with described flywheel again to be connected；Described upper fluid separator and described lower fluid barrier are covered on the upper and lower side being located at described flywheel respectively, and and described flywheel between unable transmission；Described upper fluid separator and lower fluid barrier are fixed with described rotating shaft and are connected.
Axial compressive force stream the most according to claim 1 and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterized in that, at the upper end-face edge of described flywheel with described upper fluid separator lower edge at, be provided with, with at described lower fluid barrier upper end-face edge, the interspersed dentalation that matches at the lower edge of described flywheel.
3. according to the test device of the axial compressive force stream described in claim 2 with circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterized in that, it is provided with the first bulge-structure on described flywheel upper end-face edge, being provided with the first groove structure matched with the first bulge-structure in described upper fluid separator lower edge, described first bulge-structure puts in described first groove structure；
Being provided with the second groove structure in described flywheel lower edge, described lower fluid barrier upper end-face edge is provided with the second bulge-structure matched with the second groove structure, described second bulge-structure puts in described second groove structure.
Axial compressive force stream the most according to claim 1 and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterized in that, described flywheel includes flywheel cavity, upper cover plate, lower cover, described flywheel cavity is the barrel-like structure of a both ends open, and described upper cover plate, lower cover cover respectively and form a confined space on the upper and lower side opening being located at described flywheel cavity；Described multi-axis force transducer is positioned at described flywheel cavity, and is connected on the medial wall of flywheel cavity by a disc.
Axial compressive force stream the most according to claim 4 and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterized in that, it is provided with oil enveloping structure between described upper cover plate, lower cover and described rotating shaft, between described upper cover plate, lower cover and described flywheel cavity, is provided with O RunddichtringO.
Axial compressive force stream the most according to claim 1 and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterized in that, be provided with support flying wheel between upper and lower end and the described rotating shaft of described flywheel, reduce the clutch shaft bearing assembly rubbed.
Axial compressive force stream the most according to claim 6 and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterised in that described clutch shaft bearing assembly includes:
Bearing block, described bearing sleeve is located in described rotating shaft, and one end of described bearing block is connected on the upper end of described flywheel or the inner surface of lower end；
Linear bearing, is arranged between described bearing block and described rotating shaft and is axially positioned by a circlip.
Axial compressive force stream the most according to claim 1 and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterized in that, a lasso also it is arranged with on the outer ring of described flywheel, described lasso is dismountable to be arranged on described flywheel, and described lasso is for changing the surface topography of described flywheel outer ring；And described lasso can realize changing in the case of the internal structure dismantling described flywheel.
Axial compressive force stream the most according to claim 1 and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterized in that, described rotating shaft is hollow-core construction, in described rotating shaft, described multi-axis force transducer corresponding position being provided with the radial hole that the central through hole with described rotating shaft communicates, the holding wire of described multi-axis force transducer outwards exports through described radial hole, central through hole.
Axial compressive force stream the most according to claim 1 and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterized in that, the medial wall of described shell is provided with a sleeve, removably connecting between described sleeve and described shell, described sleeve is for changing the spacing between described flywheel and described shell and changing the surface topography of described inner surface of outer cover.
11. axial compressive force streams according to claim 1 and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterized in that, between described upper end cover, bottom end cover and described rotating shaft, between described upper end cover and described shell, between described bottom end cover and described shell, be provided with sealing structure.
12. axial compressive force streams according to claim 1 and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other, it is characterised in that between lower end and the described bottom end cover of described rotating shaft, be additionally provided with the second bearing assembly；Described bearing assembly includes deep groove ball bearing and bearing plate, and described deep groove ball bearing is arranged on described bottom end cover by bearing plate, and described deep groove ball bearing is arranged between described rotating shaft and described bottom end cover.
13. 1 kinds of band return port card Gap Annular Flow radial pressure flow resistances and asymmetric shaft are to force test method, it is characterized in that, axial compressive force stream described in any one and the test device of circumference shear flow reciprocal effect clearance flow dynamic resistance to each other in employing claim 1-12, method of testing comprises the following steps:
A, by the annexation described in claim 1, each parts are attached；In gap in described closing chamber and between flywheel and upper fluid separator, lower fluid barrier hydraulically full；
Acting on the F1 that makes a concerted effort of the buoyancy suffered by the deadweight that power is described flywheel of described multi-axis force transducer and flywheel time static, time static, flywheel is acted on by drag torque；
B, flywheel transfixion, regulate liquid run-in-hole, the flow Q of liquid outflow port, and record the axial force F measured by described multi-axis force transducer corresponding under different flow Q；
C, startup external driver device, flywheel driven rotates；By regulation liquid run-in-hole, the flow of liquid outflow port so that closing chamber indoor liquid axial flow is zero, moving so that only have Sheared axial flow on flywheel lateral surface, owing to the most axially flowing, therefore axial force suffered by flywheel will not change；
The rotating speed of regulation external driver device, and record the torque G that under different rotating speeds, described multi-axis force transducer records；
D, by regulation liquid run-in-hole, the flow of liquid outflow port, make to close chamber indoor liquid axially to flow, the rotating speed of regulation external driver device is first rotating speed corresponding in step c, regulation axial flow is axial flow corresponding in step b the most successively, records the axial force F corresponding to multi-axis force transducer and torque G respectively；
E, repetition step d, be individual rotating speed corresponding in step c by the rotational speed regulation of step d peripheral driving means, and records the axial force F corresponding to multi-axis force transducer and torque G；
F, the data recorded are carried out list records get off in above steps, and these data are processed, rotating speed nondimensionalization is obtained Taylor number Ta, axial flow nondimensionalization obtains reynolds number Re, finally gives the torque corresponding with Taylor number Ta of this different Reynolds number Re flowing to structure and axial force.
14. according to the band return port card Gap Annular Flow radial pressure flow resistance described in claim 13 and asymmetric shaft to force test method, it is characterised in that
The medial wall of described shell is provided with a sleeve, removably connects between described sleeve and described shell, and described sleeve is for changing the spacing between described flywheel and described shell and changing the surface topography of described inner surface of outer cover；
Method of testing also includes step g: change the size of the thickness of described sleeve, changes the parameter of gap flow passage structure between shell and flywheel lateral wall, and repeats step a-f；Different flow passage structures uses dimensionless numberriFor the inside radius of gap flow passage structure, r0Outer radius for gap flow passage structure；Obtain the torque corresponding with Taylor number Ta of different Reynolds number Re under different flow passage structure and axial force the most at last；By analytical data, just it appeared that axial compressive force stream with circumference the shear flow reciprocal effect relation to flow resistance each other.
15. axial compressive force streams as claimed in claim 13 and the method for testing of circumference shear flow reciprocal effect flow resistance each other, it is characterised in that the liquid in described step b uses water.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814101A (en) * | 2016-12-30 | 2017-06-09 | 上海交通大学 | Vertical turbulent flow Taylor Couette flow flowing heat transfer experimental bench |
| CN106950001A (en) * | 2017-02-16 | 2017-07-14 | 上海交通大学 | Shield electric machine flywheel can-like gap chamber drag torque decoupling test device and method |
| CN110793709A (en) * | 2019-12-04 | 2020-02-14 | 四川南格尔生物科技有限公司 | Pressure monitoring device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3828610A (en) * | 1970-01-07 | 1974-08-13 | Judson S Swearingen | Thrust measurement |
| US4864872A (en) * | 1988-06-13 | 1989-09-12 | Stahl Jere F | Hydraulic dynamometer |
| CN102183356A (en) * | 2011-03-17 | 2011-09-14 | 哈尔滨工程大学 | Device for testing fluid friction resistance |
| CN102410234A (en) * | 2011-08-24 | 2012-04-11 | 上海交通大学 | Hydraulic loss testing platform and testing method of canned motor rotor system |
| CN102518800A (en) * | 2011-11-24 | 2012-06-27 | 西安交通大学 | Clearance seal structure capable of sealing liquid and solid phases |
| CN102735422A (en) * | 2012-06-25 | 2012-10-17 | 上海交通大学 | Device for studying gap flow field of shielding sleeve of shielding motor |
| CN103940540A (en) * | 2014-04-14 | 2014-07-23 | 上海交通大学 | Measuring device and method of fluid dynamic axial force of vertical type wet rotor of shielded motor |
| CN104122069A (en) * | 2014-07-15 | 2014-10-29 | 上海交通大学 | Flywheel gap fluid asymmetric hydrodynamic axial thrust quick adjustment device |
| CN104122068A (en) * | 2014-06-29 | 2014-10-29 | 吉林大学 | Discrete-point test device for internal flow field of hydraulic torque converter |
| CN105443397A (en) * | 2014-09-24 | 2016-03-30 | 杭州三花研究院有限公司 | Electronic pump |
-
2016
- 2016-03-31 CN CN201610200454.2A patent/CN105784233B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3828610A (en) * | 1970-01-07 | 1974-08-13 | Judson S Swearingen | Thrust measurement |
| US4864872A (en) * | 1988-06-13 | 1989-09-12 | Stahl Jere F | Hydraulic dynamometer |
| CN102183356A (en) * | 2011-03-17 | 2011-09-14 | 哈尔滨工程大学 | Device for testing fluid friction resistance |
| CN102410234A (en) * | 2011-08-24 | 2012-04-11 | 上海交通大学 | Hydraulic loss testing platform and testing method of canned motor rotor system |
| CN102518800A (en) * | 2011-11-24 | 2012-06-27 | 西安交通大学 | Clearance seal structure capable of sealing liquid and solid phases |
| CN102735422A (en) * | 2012-06-25 | 2012-10-17 | 上海交通大学 | Device for studying gap flow field of shielding sleeve of shielding motor |
| CN103940540A (en) * | 2014-04-14 | 2014-07-23 | 上海交通大学 | Measuring device and method of fluid dynamic axial force of vertical type wet rotor of shielded motor |
| CN104122068A (en) * | 2014-06-29 | 2014-10-29 | 吉林大学 | Discrete-point test device for internal flow field of hydraulic torque converter |
| CN104122069A (en) * | 2014-07-15 | 2014-10-29 | 上海交通大学 | Flywheel gap fluid asymmetric hydrodynamic axial thrust quick adjustment device |
| CN105443397A (en) * | 2014-09-24 | 2016-03-30 | 杭州三花研究院有限公司 | Electronic pump |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814101A (en) * | 2016-12-30 | 2017-06-09 | 上海交通大学 | Vertical turbulent flow Taylor Couette flow flowing heat transfer experimental bench |
| CN106814101B (en) * | 2016-12-30 | 2020-07-14 | 上海交通大学 | Vertical turbulent Taylor-Couette flow heat transfer experiment table |
| CN106950001A (en) * | 2017-02-16 | 2017-07-14 | 上海交通大学 | Shield electric machine flywheel can-like gap chamber drag torque decoupling test device and method |
| CN106950001B (en) * | 2017-02-16 | 2019-09-24 | 上海交通大学 | Shield electric machine flywheel can-like gap chamber drag torque decouples test device and method |
| CN110793709A (en) * | 2019-12-04 | 2020-02-14 | 四川南格尔生物科技有限公司 | Pressure monitoring device |
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|---|---|
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