CN106907336B - A kind of mixed-flow pump impeller instantaneous radial measuring device and method - Google Patents
A kind of mixed-flow pump impeller instantaneous radial measuring device and method Download PDFInfo
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- CN106907336B CN106907336B CN201710144434.2A CN201710144434A CN106907336B CN 106907336 B CN106907336 B CN 106907336B CN 201710144434 A CN201710144434 A CN 201710144434A CN 106907336 B CN106907336 B CN 106907336B
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- end bearing
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- mixed
- flow pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
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Abstract
The present invention provides a kind of mixed-flow pump impeller instantaneous radial measuring device and methods, in the angular contact ball bearing for carrying mixed-flow pump pump shaft, cylinder roller bearing and rear end bearing seat, rear end bearing sleeve is respectively set between guide vane wheel hub, leading portion bearing sleeve, and in rear end bearing sleeve, leading portion bearing sleeve is respectively equipped with several circular grooves on outer ring, for disposing pressure sensor, and using mounted in rear end bearing seat, clamp nut on guide vane wheel hub limits the movement of the pressure sensor, pass through the diagonal contact ball bearing of pressure sensor real-time detection pump shaft, cylinder roller bearing is in different radial forces radially, to obtain mixed-flow pump impeller instantaneous radial.The invention proposes that one kind is easily operated, response frequency is high, measures for mixed-flow pump impeller instantaneous radial.
Description
Technical field
The invention belongs to fluid machinery (mixed-flow pump) technical fields, radial particularly with regard to a kind of mixed-flow pump impeller transient state
Force measuring device and method.
Background technique
Mixed-flow pump is a kind of performance and structure hydraulic between centrifugal pump and axial-flow pump, as nuclear energy power generation, warship
Core drive equipment in the Major Strategics engineerings such as ship propulsion, MISSILE LAUNCHING and the south water to north, high-power, high speed, multi-state
Under working condition make mixed-flow pump rotor stability relative reduction, flow field tend to complicate, interstitial fluid exciting easily cause turn
The instability problems such as sub- whirling motion, shafting vibration, therefore, in order to analyse in depth mixed flow pump rotor instability problem, it is necessary to send out
It is bright a kind of for mixed-flow pump impeller instantaneous radial measuring device.
Through retrieving, the related patents of device for measuring radial force have at present: application number 201010274222.4, a kind of radial force
Analyzer and its lip-type packing radial force measuring method.Patent of invention specification lip-type packing radial force measuring method,
But excessive radial force will will affect the sealing performance and working life of sealing ring；Application number 2012103503553.5, Yi Zhongli
Heart pump hydraulic transint device for measuring radial force and measurement method provide a kind of measurement dress of instantaneous radial force of centrifugal pump impeller
It sets.The measurement process of the patent is complex, and need to place the object for balance in pump shaft front end, is easy to influence the flowing of pump
Performance, the efficiency for reducing pump.
Summary of the invention
In response to the deficiencies in the existing technology, the present invention provides a kind of mixed-flow pump impeller instantaneous radial measuring device and
Method, the invention propose that a kind of measurement method is simple, measuring instrument is easily operated, carry out for mixed-flow pump impeller instantaneous radial
Measurement.
The technical scheme is that:
A kind of mixed-flow pump impeller instantaneous radial measuring device, including pressure sensor, rear end bearing sleeve, angular contact ball
Bearing, cylinder roller bearing, front end bearing sleeve, pump shaft, HSJ-2010 hydraulic comprehensive tester；The pump shaft is successively worn
Cross a pair of of angular contact ball bearing and a cylinder roller bearing；The cylinder roller bearing is mounted in the bearing sleeve of front end, preceding
End bearing sleeve is mounted on the inner wall of guide vane wheel hub；The angular contact ball bearing is mounted on side by side in rear end bearing sleeve, after
End bearing sleeve is mounted on rear end bearing seat；It is respectively equipped on front end bearing sleeve outer ring and rear end bearing sleeve outer ring
Several circular grooves are provided with a pressure sensor in each circular groove；On the guide vane wheel hub, rear end bearing seat respectively
Several bolts hole and threading hole are set；A hold-down bolt is respectively mounted in each bolt hole for fixation pressure sensor；It is described
The lead of pressure sensor is drawn by threading hole and passes through data line and is connected with HSJ-2010 hydraulic comprehensive tester.
Further, the threading hole on the guide vane wheel hub is front end threading hole, is provided in guide vane wheel hub；Rear end bearing
Threading hole on seat is rear end threading hole, is provided in rear end bearing seat.
Further, the multiple circular groove is evenly distributed on front end bearing sleeve outer ring and rear end bearing sleeve outer ring
On.
Further, the quantity of the circular groove is four.
It further, is interference fit, the width of front end bearing sleeve with cylinder roller bearing on the inside of the bearing sleeve of front end
Slightly larger than cylinder roller bearing width, it is highly the annulus of 27mm that front end bearing sleeve, which is that internal diameter is 80mm, outer diameter 125mm,
Column, and four planes are milled out at outer ring, the angle of every adjacent plane central point and circle center line connecting is 90 degree.
It further, is interference fit, the width of rear end bearing sleeve 3 with angular contact ball bearing on the inside of rear end bearing sleeve
Slightly larger than angular contact ball bearing width, rear end bearing sleeve is interior through being highly the column of 48mm for 80mm, outer diameter 120mm
Body, and four planes are milled out at outer ring, the angle of every adjacent plane central point and circle center line connecting is 90 degree.
Further, the circular groove of front end bearing sleeve outer ring and rear end bearing sleeve outer ring is located at milled four and puts down
In face, there is a circular groove in each plane, the center of circle of each circular groove is overlapped with place planar central point, the depth of groove
It spends 1mm~2mm smaller than sensor height.
Mixed-flow pump impeller instantaneous radial measurement method, which is characterized in that in the angular contact for carrying mixed-flow pump pump shaft
Rear end bearing sleeve, leading portion bearing holder (housing, cover) are respectively set between ball bearing, cylinder roller bearing and rear end bearing seat, guide vane wheel hub
Cylinder, and several circular grooves are respectively equipped on outer ring in rear end bearing sleeve, leading portion bearing sleeve, for disposing pressure sensing
Device, and the clamp nut on rear end bearing seat, guide vane wheel hub is used to limit the movement of the pressure sensor, pass through pressure
The diagonal contact ball bearing of sensor real-time detection pump shaft, cylinder roller bearing are in different radial forces radially, to obtain mixed flow
Impeller of pump instantaneous radial.
Beneficial effects of the present invention:
Mixed-flow pump impeller instantaneous radial measuring device of the present invention, for mixed flow pump configuration, to mixed flow pump bearing
Holder structure is improved, and a kind of mixed-flow pump impeller instantaneous radial measuring device is provided, in the flowing for not influencing mixed-flow pump
Under the premise of performance and efficiency, the experiment measurement of mixed-flow pump impeller instantaneous radial is realized, which surveys
Amount method is simple, it is easy to accomplish, it is convenient to check, and carries out real-time capture radial force using sensor, transient state diameter can be measured by reaching
To the purpose of power.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of mixed-flow pump impeller instantaneous radial measuring device of the present invention；
Fig. 2 is mixed-flow pump impeller instantaneous radial rear end measuring device assembling schematic diagram；
Fig. 3 is mixed-flow pump impeller instantaneous radial front end measurement device assembling schematic diagram.
The reference numerals are as follows:
The rear end 1- hold-down bolt；2- pressure sensor；；3- rear end bearing sleeve；4- angular contact ball bearing；5- bolt hole A；
The rear end 6- threading hole；The front end 7- hold-down bolt；8- cylinder roller bearing；The front end 9- bearing sleeve；10- bolt hole B；The front end 11-
Threading hole；12- pump shaft.
Specific embodiment
Present invention will be further explained with reference to the attached drawings and specific examples, but protection scope of the present invention is simultaneously
It is without being limited thereto.
As shown in Figure 1, 2, 3, mixed-flow pump impeller instantaneous radial measuring device of the present invention, including side pressure after four
Tight bolt 1, pressure sensor 2, rear end bearing sleeve 3, angular contact ball bearing 4, bolt hole A5, rear end threading hole 6, four front ends
Hold-down bolt 7, cylinder roller bearing 8, front end bearing sleeve 9, bolt hole B 10, front end threading hole 11, pump shaft 12, HSJ-2010
Hydraulic comprehensive tester.The pump shaft 12 sequentially passes through a pair of of angular contact ball bearing 4 and a cylinder roller bearing 8；Institute
It states cylinder roller bearing 8 to be mounted in front end bearing sleeve 9, front end bearing sleeve 9 is mounted on the inner wall of guide vane wheel hub；It is described
A pair of of angular contact ball bearing 4 is mounted on side by side in rear end bearing sleeve 3, and rear end bearing sleeve 3 is mounted on rear end bearing seat；Institute
It states and is respectively equipped with four circular grooves on 3 outer ring of 9 outer ring of front end bearing sleeve and rear end bearing sleeve, set in each circular groove
It is equipped with a pressure sensor 2；The guide vane wheel hub is equipped with four bolt hole B10 of installation hold-down bolt；Each bolt hole
One front end hold-down bolt 7 is installed in B10；The rear end bearing seat is equipped with four bolt hole A5 of installation hold-down bolt, often
One rear end hold-down bolt 1 is installed in a bolt hole A5；Pressure sensor 2 is fixed on circle by each hold-down bolt 1,7
In groove；The lead of the pressure sensor 2 is drawn by threading hole 6,11；The front end threading hole 11 is provided with guide vane wheel hub
It is interior；The rear end threading hole 6 is provided in rear end bearing seat；The forefront pressure sensor, rear end pressure sensor pass through number
It is connected according to line and outer machine, outer machine uses HSJ-2010 hydraulic comprehensive tester；The HSJ-2010 hydraulic is comprehensive to be surveyed
Examination instrument uses National Instruments' high speed acquisition module for hardware foundation, acquires information using NI USB-6218 capture card.
Mixed-flow pump impeller instantaneous radial measurement method of the present invention, in the angular contact for carrying mixed-flow pump pump shaft
Rear end bearing sleeve 3, leading portion bearing are respectively set between ball bearing 4, cylinder roller bearing 8 and rear end bearing seat, guide vane wheel hub
Sleeve 9, and several circular grooves are respectively equipped on 9 outer ring in rear end bearing sleeve 3, leading portion bearing sleeve, for disposing pressure
Sensor 2, and the clamp nut on rear end bearing seat, guide vane wheel hub is used to limit the movement of the pressure sensor 2, lead to
The diagonal contact ball bearing 4 of over-voltage force snesor real-time detection pump shaft, cylinder roller bearing 8 come in different radial forces radially
Obtain mixed-flow pump impeller instantaneous radial.
9 inside of front end bearing sleeve and cylinder roller bearing 8 are interference fit, and the width of front end bearing sleeve 9 is slightly larger than
8 width of cylinder roller bearing, front end bearing sleeve 9 are that internal diameter is 80mm, outer diameter 125mm, are highly the annulus column of 27mm
Body, and four planes are milled out at outer ring, the angle of every adjacent plane central point and circle center line connecting is 90 degree.Rear end bearing sleeve
3 insides are interference fit with angular contact ball bearing 4, and the width of rear end bearing sleeve 3 is slightly larger than 4 width of angular contact ball bearing, after
End bearing sleeve 3 is interior through being highly the column of 48mm for 80mm, outer diameter 120mm, and mills out four at outer ring and put down
The angle of face, every adjacent plane central point and circle center line connecting is 90 degree.Outside 9 outer ring of front end bearing sleeve and rear end bearing sleeve 3
Circle is opened up there are four circular groove, and circular groove is located in four milled planes, there is a circular groove in each plane,
The center of circle of each circular groove is overlapped with place planar central point, and the depth of groove is 1mm~2mm smaller than sensor height.
Further, a pressure sensor 2 is placed in each circular groove, each bolt hole 5,10 is equipped with a compression
Bolt 1,7, groove aperture and 5,10 aperture of bolt hole are equal, and when installation, bolt hole 5,10 is aligned with groove, passes through hold-down bolt
1,7 is fixed on pressure sensor 2 in groove, and the lead of sensor is drawn by threading hole 6,11, and outputs data to outer
In machine.
Multiple forefront pressure sensors, rear end pressure sensor are connected by data line and outer machine, and outer machine uses HSJ-
2010 hydraulic comprehensive testers acquire information using NI USB-6218 capture card, vasculum USB jack and computer are connected
It connects, NI USB-6218 capture card will be identified, and be recorded in Measurement&Automation, in Measurement&
Display in " the NI-DAQmx equipment " of Automation.
The embodiment is a preferred embodiment of the present invention, but present invention is not limited to the embodiments described above, not
In the case where substantive content of the invention, any conspicuous improvement that those skilled in the art can make, replacement
Or modification all belongs to the scope of protection of the present invention.
Claims (8)
1. a kind of mixed-flow pump impeller instantaneous radial measuring device, which is characterized in that including pressure sensor (2), rear end bearing
Sleeve (3), angular contact ball bearing (4), cylinder roller bearing (8), front end bearing sleeve (9), pump shaft (12), HSJ-2010 waterpower
Mechanical integrated tester；The pump shaft (12) sequentially passes through a pair of of angular contact ball bearing (4) and a cylinder roller bearing (8)；
The cylinder roller bearing (8) is mounted in front end bearing sleeve (9), and front end bearing sleeve (9) is mounted on the interior of guide vane wheel hub
On wall；The angular contact ball bearing (4) is mounted on side by side in rear end bearing sleeve (3), and rear end bearing sleeve (3) is mounted on rear end
On bearing block；Several circular grooves are respectively equipped on front end bearing sleeve (9) outer ring and rear end bearing sleeve (3) outer ring,
A pressure sensor (2) is provided in each circular groove；Several spiral shells are respectively set on the guide vane wheel hub, rear end bearing seat
Keyhole and threading hole；A hold-down bolt is respectively mounted in each bolt hole for fixation pressure sensor (2)；The pressure sensing
The lead of device (2) is drawn by threading hole and passes through data line and is connected with HSJ-2010 hydraulic comprehensive tester.
2. mixed-flow pump impeller instantaneous radial measuring device according to claim 1, which is characterized in that the guide vane wheel hub
On threading hole be front end threading hole (11), be provided in guide vane wheel hub；Threading hole on rear end bearing seat is rear end threading hole
(6), it is provided in rear end bearing seat.
3. mixed-flow pump impeller instantaneous radial measuring device according to claim 1, which is characterized in that the multiple circle
Groove is evenly distributed on front end bearing sleeve (9) outer ring and rear end bearing sleeve (3) outer ring.
4. mixed-flow pump impeller instantaneous radial measuring device according to claim 3, which is characterized in that the circular groove
Quantity be four.
5. mixed-flow pump impeller instantaneous radial measuring device according to claim 4, which is characterized in that front end bearing sleeve
(9) inside and cylinder roller bearing (8) are interference fit, and the width of front end bearing sleeve (9) is slightly larger than cylinder roller bearing (8)
Width, front end bearing sleeve (9) are that internal diameter is 80mm, outer diameter 125mm, are highly the annulus column of 27mm, and in front end
Mill out four planes at the outer ring of bearing sleeve (9), the angle of every adjacent plane central point and circle center line connecting is 90 degree.
6. mixed-flow pump impeller instantaneous radial measuring device according to claim 4, which is characterized in that rear end bearing sleeve
(3) inside and angular contact ball bearing (4) are interference fit, and the width of rear end bearing sleeve (3) is slightly larger than angular contact ball bearing (4)
Width, rear end bearing sleeve (3) is interior through being highly the column of 48mm for 80mm, outer diameter 120mm, and is milled at outer ring
The angle of four planes out, every adjacent plane central point and circle center line connecting is 90 degree.
7. mixed-flow pump impeller instantaneous radial measuring device according to claim 5, which is characterized in that front end bearing sleeve
(9) circular groove of outer ring and rear end bearing sleeve (3) outer ring is located in four milled planes, there is a circle in each plane
The center of circle of connected in star, each circular groove is overlapped with place planar central point, and the depth of groove is 1mm smaller than sensor height~
2mm。
8. mixed-flow pump impeller instantaneous radial measurement method, which is characterized in that in the angular contact ball for carrying mixed-flow pump pump shaft
Rear end bearing sleeve (3), front end is respectively set between bearing (4), cylinder roller bearing (8) and rear end bearing seat, guide vane wheel hub
Bearing sleeve (9), and several circular grooves are respectively equipped on rear end bearing sleeve (3), front end bearing sleeve (9) outer ring, it uses
The pressure sensing is limited in placement pressure sensor (2), and using the clamp nut on rear end bearing seat, guide vane wheel hub
The movement of device (2), by the diagonal contact ball bearing of pressure sensor real-time detection pump shaft (4), cylinder roller bearing (8) in difference
Radial force radially, to obtain mixed-flow pump impeller instantaneous radial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144434.2A CN106907336B (en) | 2017-03-13 | 2017-03-13 | A kind of mixed-flow pump impeller instantaneous radial measuring device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144434.2A CN106907336B (en) | 2017-03-13 | 2017-03-13 | A kind of mixed-flow pump impeller instantaneous radial measuring device and method |
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| Publication Number | Publication Date |
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| CN106907336A CN106907336A (en) | 2017-06-30 |
| CN106907336B true CN106907336B (en) | 2019-04-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108692126B (en) * | 2018-04-13 | 2021-04-20 | 江苏源泉泵业股份有限公司 | Mixed-flow type pipeline heater based on electromagnetic induction |
| CN109781325B (en) * | 2018-10-10 | 2021-11-16 | 南通大学 | Radial force measuring device and method for centrifugal pump |
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|---|---|---|---|---|
| EP0672886A2 (en) * | 1994-03-04 | 1995-09-20 | Crane Co. | Monitoring system for detecting axial and radial movement |
| US5649449A (en) * | 1995-04-25 | 1997-07-22 | Abs Pump Production Ab | Method and apparatus for determining the instantaneous operation conditions of a centrifugal pump |
| CN101963535A (en) * | 2010-09-07 | 2011-02-02 | 青岛开世密封工业有限公司 | Radial force measurement instrument and method for measuring radial force value of lip-shaped sealing ring thereof |
| CN102901598A (en) * | 2012-09-05 | 2013-01-30 | 江苏大学 | Device for measuring radial force of transient-state hydraulic power of centrifugal pump and measuring method thereof |
| CN104215441A (en) * | 2014-08-22 | 2014-12-17 | 上海交通大学 | Dynamic radial loading mechanism and stability test scheme for vertical rotor |
| CN105092129A (en) * | 2015-07-09 | 2015-11-25 | 广东省佛山水泵厂有限公司 | Rotation machine axial force testing apparatus and testing method thereof |
| CN206571705U (en) * | 2017-03-13 | 2017-10-20 | 江苏大学 | A kind of mixed-flow pump impeller instantaneous radial measurement apparatus |
-
2017
- 2017-03-13 CN CN201710144434.2A patent/CN106907336B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672886A2 (en) * | 1994-03-04 | 1995-09-20 | Crane Co. | Monitoring system for detecting axial and radial movement |
| US5649449A (en) * | 1995-04-25 | 1997-07-22 | Abs Pump Production Ab | Method and apparatus for determining the instantaneous operation conditions of a centrifugal pump |
| CN101963535A (en) * | 2010-09-07 | 2011-02-02 | 青岛开世密封工业有限公司 | Radial force measurement instrument and method for measuring radial force value of lip-shaped sealing ring thereof |
| CN102901598A (en) * | 2012-09-05 | 2013-01-30 | 江苏大学 | Device for measuring radial force of transient-state hydraulic power of centrifugal pump and measuring method thereof |
| CN104215441A (en) * | 2014-08-22 | 2014-12-17 | 上海交通大学 | Dynamic radial loading mechanism and stability test scheme for vertical rotor |
| CN105092129A (en) * | 2015-07-09 | 2015-11-25 | 广东省佛山水泵厂有限公司 | Rotation machine axial force testing apparatus and testing method thereof |
| CN206571705U (en) * | 2017-03-13 | 2017-10-20 | 江苏大学 | A kind of mixed-flow pump impeller instantaneous radial measurement apparatus |
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