CN103940540A - Measuring device and method of fluid dynamic axial force of vertical type wet rotor of shielded motor - Google Patents
Measuring device and method of fluid dynamic axial force of vertical type wet rotor of shielded motor Download PDFInfo
- Publication number
- CN103940540A CN103940540A CN201410148220.9A CN201410148220A CN103940540A CN 103940540 A CN103940540 A CN 103940540A CN 201410148220 A CN201410148220 A CN 201410148220A CN 103940540 A CN103940540 A CN 103940540A
- Authority
- CN
- China
- Prior art keywords
- rotor
- dynamometry
- flywheel
- thrust
- force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a measuring device and method of fluid dynamic axial force of a vertical type wet rotor of a shielded motor. The measuring device comprises a shell, the rotor, an upper flywheel, a lower flywheel, a supporting frame, a sealing device, a detecting device and a variable frequency motor. The upper flywheel and the lower flywheel are connected with the rotor, and the rotor is connected with the shell though a bearing. The detecting device comprises a thrust bearing disc, a thrust disc force measuring shaft and a plurality of force measuring units, the rotor is connected with the thrust disc force measuring shaft through a first coupling after penetrating out of the shell, the thrust disc force measuring shaft is connected with the thrust bearing disc through a bearing, the thrust bearing disc is connected with the supporting frame through the force measuring units and a flange plate, and the variable frequency motor is connected with the thrust disc force measuring shaft through a second coupling. Compared with the prior art, the measuring device can achieve a rapid test of the fluid dynamic axial force produced by a rotor assembly of the shielded motor under the condition of rotating speed variation due to the Bernoulli effect, and reference data are provided for fluid dynamic design and optimization of the rotor assembly of the shielded motor.
Description
Technical field
The present invention relates to fluid machinery technical field, particularly a kind of protected type motor vertical wet rotor hydrodynamic axial-force testing device and method.
Background technology
Core main pump, as the power source of nuclear reactor coolant cools medium circulation, is described as the heart of nuclear reactor.Current in-service nuclear reactor main pump, adopts shaft seal pump as Core cooling agent main pump more.The appearance of all previous nuclear accident is had higher requirement to Nuclear Safety, in order to improve security of system from principle, once the shaft seal pump being widely used, because these technological difficulties of its high pressure dynamic sealing are replaced by leak free canned motor pump, appears at generation Ⅲ nuclear power technical.Coolant Pump, by the conversion of pressure boundary, is introduced motor internal by high-pressure fluid, adopts static seal to replace motive seal, has substituted the incomplete pressure boundary of shaft seal pump, thereby improved reactor core security with complete pressure boundary.Yet Coolant Pump is owing to being subject to larger fluid resistance, and safety Design to power-off operating mode under main pump running down performance requirements at the higher level have been proposed, so this Coolant Pump structurally needs to increase fly-wheel control, to meet the requirement of system running down inertia.
Yet just the change of shield electric machine be sealed into static seal and bring without leakage technology advantage, but brought new challenge to the design of large-scale shield electric machine.Because the rotor assembly with free wheels structure is in the rotation of interstitial fluid high speed, the existence of fluid Bernoulli effect makes the rotor assembly of symmetric design in structure in flow dynamics, occur asymmetry.The asymmetry of pressure distribution carries out, after integration, making rotor assembly be subject to axial force perpendicular to the cross section of axis direction to rotor assembly.Because hydrodynamic characteristics is relevant to fluidised form, shielding motor rotor rotating speed changes the fluidised form of Clearance Flow, so this axial force is an acting force changing with shield electric machine running speed, thereby causes the test of its axial force difficulty that becomes.Because fluid force is relevant to fluidised form, so the size of this axial force changes and to change with motor speed, and enlarges markedly in the process raising at rotating speed, particularly remarkable for large-sized shielding motor rotor structure.
This shield electric machine is in the process of using, adopt vertical mounting structure, therefore the rotor assembly with free wheels structure is the wet rotor assembly of vertical rotating, and vertical rotating rotor is that the test of hydrodynamics axial force has increased difficulty, thereby is difficult to provide technical parameter for the design of fluid lubricated bearing.
Summary of the invention
The object of the invention is to provide a kind of protected type motor vertical wet rotor hydrodynamic axial-force testing device, to solve the fluid dynamics axial force of existing vertical rotating rotor, be difficult to test, thereby be difficult to provide for the design of fluid lubricated bearing the technical matters of technical parameter.
The method of testing of the protected type motor vertical wet rotor hydrodynamic axial-force testing device that another object of the present invention is to provide above-mentioned, to solve the fluid dynamics axial force of existing vertical rotating rotor, be difficult to test, thereby be difficult to provide for the design of fluid lubricated bearing the technical matters of technical parameter.
The object of the invention is achieved through the following technical solutions:
A kind of protected type motor vertical wet rotor hydrodynamic axial-force testing device, comprise shell, rotor, upper flywheel, lower flywheel, bracing frame, pick-up unit and drive unit, described upper flywheel and described lower flywheel are separately positioned on the two ends of described rotor, the two ends of described rotor are connected with the inwall of described shell with lower bush(ing) bearing by upper bush(ing) bearing respectively, described upper flywheel and described lower flywheel are arranged in described shell, described rotor, gapped between described upper flywheel and described lower flywheel and described outer casing inner wall, the lower end of described shell is connected with support frame as described above, described pick-up unit comprises thrust block load plate, thrust disc dynamometry axle and some dynamometry unit, the shaft shoulder of described rotor lower end is connected with described thrust disc dynamometry axle by the first shaft coupling from described shell passes, described thrust disc dynamometry axle is connected with described thrust block load plate by thrust bearing, described thrust block load plate is connected with some dynamometry unit, dynamometry unit is connected with support frame as described above by ring flange, described thrust disc dynamometry axle is connected with described ring flange by annular bearing with rolling contact, described annular bearing with rolling contact is positioned at the below of described thrust bearing, described drive unit comprises variable-frequency motor, described variable-frequency motor is connected with described thrust disc dynamometry axle by the second shaft coupling, described variable-frequency motor is connected with support frame as described above by flange.
In the preferred embodiment of the invention, the junction of described rotor lower end and described shell is provided with mechanical sealing device.
In the preferred embodiment of the invention, described packoff comprises O-ring seal.
In the preferred embodiment of the invention, described dynamometry unit comprises power sensor, and described power sensor is 4, and 4 power sensors are uniformly distributed in a circumferential direction, can increase the stability of structure.
In the preferred embodiment of the invention, the structure of described upper flywheel and described lower flywheel is identical, and described upper flywheel is connected with described rotor by key and clamp nut respectively with described lower flywheel.
In the preferred embodiment of the invention, described the first shaft coupling is connected with described thrust disc dynamometry axle by set nut.
In the preferred embodiment of the invention, also comprise Data Collection And Analysis System, described Data Collection And Analysis System is connected with described dynamometry unit, and described Data Collection And Analysis System is for carrying out Collection and analysis to the measured value of dynamometry unit.
The method of testing of above-mentioned protected type motor vertical wet rotor hydrodynamic axial-force testing device, comprises the following steps:
A. each parts are installed according to the annexation in claim 1, during stationary rotor, rotor is connected with described thrust disc dynamometry axle by described the first shaft coupling, the suffered gravity of rotor assembly that described rotor and described upper flywheel and described lower flywheel form is delivered to described thrust bearing by described thrust disc dynamometry axle, the acting force that described thrust bearing bears is delivered to some dynamometry unit by thrust block load plate, thereby measures the suffered axial force G of static situation lower rotor part assembly
1, G
1measured value sum for all dynamometry unit;
B. in described shell, fill with liquid, start variable-frequency motor, variable-frequency motor drives described thrust disc dynamometry axle to rotate by the second shaft coupling, described thrust disc dynamometry axle rotates in interstitial fluid by the first shaft coupling rotor driven, in rotary course, there is difference because speed difference causes pressure distribution in enclosure interstitial fluid medium, thereby makes rotor assembly be subject to axial force, meanwhile, rotor assembly is also subject to Action of Gravity Field power; The gravity that rotor assembly is suffered and axial force are delivered to described thrust bearing by described thrust disc dynamometry axle, the acting force that described thrust bearing bears is delivered to some dynamometry unit by thrust block load plate, thereby measures the suffered axial force G of rotor assembly
2, G
2measured value sum for all dynamometry unit; Can obtain the suffered axial flow of fluid kinetics function power G=G of this rotor assembly
2-G
1.
In the preferred embodiment of the invention, the liquid in described step b comprises water.
In the preferred embodiment of the invention, the rotating speed of described variable-frequency motor is 0-1500rpm, makes measurement mechanism can within the scope of wide range speed, measure the axial force of rotor assembly.
Compared with prior art, the present invention has following beneficial effect:
1, protected type motor vertical wet rotor hydrodynamic axial-force testing device of the present invention can be realized the quick test of the fluid dynamics axial force that shielding motor rotor assembly produces because of Bernoulli effect under variable speed condition, for the fluid dynamics design and optimization of shielding motor rotor assembly provides reference data;
2, protected type motor vertical wet rotor hydrodynamic axial-force testing device of the present invention also can be realized by Data Collection And Analysis System online collection and the analysis of shield electric machine vertical wet rotor hydrodynamic axial force under rotation operating mode.
Certainly, implement arbitrary product of the present invention and might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of protected type motor vertical wet rotor hydrodynamic axial-force testing device of the present invention;
Fig. 2 is the part-structure schematic diagram of protected type motor vertical wet rotor hydrodynamic axial-force testing device of the present invention.
Embodiment
Protected type motor vertical wet rotor hydrodynamic axial-force testing device of the present invention can be realized the quick test of the fluid dynamics axial force that shielding motor rotor assembly produces because of Bernoulli effect under variable speed condition, for the fluid dynamics design and optimization of shielding motor rotor assembly provides reference data.Protected type motor vertical wet rotor hydrodynamic axial-force testing device of the present invention also can be realized by Data Collection And Analysis System online collection and the analysis of shield electric machine vertical wet rotor hydrodynamic axial force under rotation operating mode.
Below in conjunction with the preferred embodiments of the present invention, the present invention will be further described.
Embodiment 1
Refer to Fig. 1,2, protected type motor vertical wet rotor hydrodynamic axial-force testing device of the present invention, comprises shell 1, rotor 4, upper flywheel 2, lower flywheel 6, bracing frame 15, pick-up unit and drive unit.The two ends that upper flywheel 2 and lower flywheel 6 are fixed on rotor 4 by clamp nut are respectively to form rotor assembly, for simulating the rotor assembly with free wheels structure of Coolant Pump.The two ends of rotor 4 are connected with the inwall of shell 1 with lower bush(ing) bearing 5 by upper bush(ing) bearing 3 respectively, and upper flywheel 2 and lower flywheel 6 are arranged in shell 1, gapped between rotor 4, upper flywheel 2 and lower flywheel 6 and the inwall of shell 1.The lower end of shell 1 is fixedly connected with bracing frame 15 by clamp nut.Pick-up unit comprises thrust block load plate 8, thrust disc dynamometry axle 9 and some dynamometry unit 13, the shaft shoulder of rotor 4 lower ends is connected with thrust disc dynamometry axle 9 by the first shaft coupling 7 from shell 1 passes, thrust disc dynamometry axle 9 is connected with thrust block load plate 8 by thrust bearing 14, thrust block load plate 8 is connected with some dynamometry unit 13, dynamometry unit 13 is connected with bracing frame 15 by ring flange 16, ring flange 16 is fixedly connected with bracing frame 15, thrust disc dynamometry axle 9 is connected with ring flange 16 by annular bearing with rolling contact 12, annular bearing with rolling contact 12 is positioned at the below of thrust bearing 14.Drive unit comprises variable-frequency motor 10, and variable-frequency motor 10 is connected with thrust disc dynamometry axle 9 by the second shaft coupling 11, and variable-frequency motor 10 output torques transmit by thrust disc dynamometry axle 9, and variable-frequency motor 10 is connected with bracing frame 15 by flange.
In the present embodiment, the junction of rotor 4 lower ends and shell 1 is provided with packoff 17, and packoff can be O-ring seal, also can be other hermetically-sealed construction.
In the present embodiment, dynamometry unit 13 comprises power sensor, and power sensor is 4, and 4 power sensors are uniformly distributed in a circumferential direction, can increase the stability of structure.
In the present embodiment, upper flywheel is identical with the structure of lower flywheel, and upper flywheel 2 is connected with rotor 4 by key and clamp nut respectively with lower flywheel 6.
In the present embodiment, the first shaft coupling 7 is connected with thrust disc dynamometry axle 9 by set nut.
In the present embodiment, also comprise Data Collection And Analysis System, Data Collection And Analysis System is connected with dynamometry unit, and Data Collection And Analysis System is for carrying out Collection and analysis to the measured value of dynamometry unit.
The torque transmission paths of proving installation of the present invention is: variable-frequency motor 10 output torques are delivered to thrust disc dynamometry axle 9 by the key connected mode of the second shaft coupling 11, the moment of torsion of thrust disc dynamometry axle 9 outputs is delivered to rotor 4 by the key connected mode of flexible the first shaft coupling 7, rotor driven 4 is rotated, and completes the driving of rotor 4.
The bang path of the rotor assembly fluid dynamics axial force of proving installation of the present invention is: the fluid dynamics axial force of rotor assembly carrying passes to the first shaft coupling 7 by the shaft shoulder of rotor, the first shaft coupling 7 coordinates the shaft shoulder to carry out axial force transmission by inside, and pass to thrust disc dynamometry axle 9 by set nut, thrust disc dynamometry axle 9 passes to thrust block load plate 8 by thrust bearing 14, thrust block load plate 8 acts on dynamometry unit 13, thereby completes transmission and the test of axial force.
Embodiment 2
The present invention also provides the method for testing of the proving installation of embodiment 1, comprises the following steps:
A. each parts are installed according to the annexation of embodiment 1, during stationary rotor, rotor is connected with thrust disc dynamometry axle by the first shaft coupling, the suffered gravity of rotor assembly that rotor and upper flywheel and lower flywheel form is delivered to thrust bearing by thrust disc dynamometry axle, the acting force that thrust bearing bears is delivered to some dynamometry unit by thrust block load plate, thereby measures the suffered axial force G of static situation lower rotor part assembly
1, G
1for the measured value sum of all dynamometry unit, thereby complete transmission and the test of axial force;
B. fill with in the enclosure water, start variable-frequency motor, variable-frequency motor drives thrust disc dynamometry axle to rotate by the second shaft coupling, thrust disc dynamometry axle rotates in interstitial fluid by the first shaft coupling rotor driven, in rotary course, there is difference because speed difference causes pressure distribution in enclosure interstitial fluid medium, thereby makes rotor assembly be subject to axial force, meanwhile, rotor assembly is also subject to Action of Gravity Field power; The gravity that rotor assembly is suffered and axial force are delivered to thrust bearing by thrust disc dynamometry axle, and the acting force that thrust bearing bears is delivered to some dynamometry unit by thrust block load plate, thereby measure the suffered axial force G of rotor assembly
2, G
2for the measured value sum of all dynamometry unit, thereby complete transmission and the test of axial force; Can obtain the suffered axial flow of fluid kinetics function power G=G of this rotor assembly
2-G
1.Data Collection And Analysis System can carry out Collection and analysis to the measured value of dynamometry unit, for the fluid dynamics design and optimization of shielding motor rotor assembly provides reference data.
In the present embodiment, the water in step b can be also other liquid.
In the present embodiment, the rotating speed of variable-frequency motor is 0-1500rpm, makes measurement mechanism can within the scope of wide range speed, measure the axial force of rotor assembly.
Disclosed is above only several specific embodiments of the application, but the application is not limited thereto, and the changes that any person skilled in the art can think of, all should drop in the application's protection domain.
Claims (10)
1. a protected type motor vertical wet rotor hydrodynamic axial-force testing device, it is characterized in that, comprise shell, rotor, upper flywheel, lower flywheel, bracing frame, pick-up unit and drive unit, described upper flywheel and described lower flywheel are separately positioned on the two ends of described rotor, the two ends of described rotor are connected with the inwall of described shell with lower bush(ing) bearing by upper bush(ing) bearing respectively, described upper flywheel and described lower flywheel are arranged in described shell, described rotor, gapped between described upper flywheel and described lower flywheel and described outer casing inner wall, the lower end of described shell is connected with support frame as described above, described pick-up unit comprises thrust block load plate, thrust disc dynamometry axle and some dynamometry unit, the shaft shoulder of described rotor lower end is connected with described thrust disc dynamometry axle by the first shaft coupling from described shell passes, described thrust disc dynamometry axle is connected with described thrust block load plate by thrust bearing, described thrust block load plate is connected with some dynamometry unit, dynamometry unit is connected with support frame as described above by ring flange, described thrust disc dynamometry axle is connected with described ring flange by annular bearing with rolling contact, described annular bearing with rolling contact is positioned at the below of described thrust bearing, described drive unit comprises variable-frequency motor, described variable-frequency motor is connected with described thrust disc dynamometry axle by the second shaft coupling, described variable-frequency motor is connected with support frame as described above by flange.
2. protected type motor vertical wet rotor hydrodynamic axial-force testing device as claimed in claim 1, is characterized in that, the junction of described rotor lower end and described shell is provided with mechanical sealing device.
3. protected type motor vertical wet rotor hydrodynamic axial-force testing device as claimed in claim 2, is characterized in that, described packoff comprises O-ring seal.
4. protected type motor vertical wet rotor hydrodynamic axial-force testing device as claimed in claim 1, is characterized in that, described dynamometry unit comprises power sensor, and described power sensor is 4, and 4 power sensors are uniformly distributed in a circumferential direction.
5. protected type motor vertical wet rotor hydrodynamic axial-force testing device as claimed in claim 1, it is characterized in that, the structure of described upper flywheel and described lower flywheel is identical, and described upper flywheel is connected with described rotor by key and clamp nut respectively with described lower flywheel.
6. protected type motor vertical wet rotor hydrodynamic axial-force testing device as claimed in claim 1, is characterized in that, described the first shaft coupling is connected with described thrust disc dynamometry axle by set nut.
7. protected type motor vertical wet rotor hydrodynamic axial-force testing device as claimed in claim 1, it is characterized in that, also comprise Data Collection And Analysis System, described Data Collection And Analysis System is connected with described dynamometry unit, and described Data Collection And Analysis System is for carrying out Collection and analysis to the measured value of dynamometry unit.
8. the method for testing of the protected type motor vertical wet rotor hydrodynamic axial-force testing device as described in any one in claim 1-7, is characterized in that, comprises the following steps:
A. each parts are installed according to the annexation in claim 1, during stationary rotor, rotor is connected with described thrust disc dynamometry axle by described the first shaft coupling, the suffered gravity of rotor assembly that described rotor and described upper flywheel and described lower flywheel form is delivered to described thrust bearing by described thrust disc dynamometry axle, the acting force that described thrust bearing bears is delivered to some dynamometry unit by thrust block load plate, thereby measures the suffered axial force G of static situation lower rotor part assembly
1, G
1measured value sum for all dynamometry unit;
B. in described shell, fill with liquid, start variable-frequency motor, variable-frequency motor drives described thrust disc dynamometry axle to rotate by the second shaft coupling, described thrust disc dynamometry axle rotates in interstitial fluid by the first shaft coupling rotor driven, in rotary course, there is difference because speed difference causes pressure distribution in enclosure interstitial fluid medium, thereby makes rotor assembly be subject to axial force, meanwhile, rotor assembly is also subject to Action of Gravity Field power; The gravity that rotor assembly is suffered and axial force are delivered to described thrust bearing by described thrust disc dynamometry axle, the acting force that described thrust bearing bears is delivered to some dynamometry unit by thrust block load plate, thereby measures the suffered axial force G of rotor assembly
2, G
2measured value sum for all dynamometry unit; Can obtain the suffered axial flow of fluid kinetics function power G=G of this rotor assembly
2-G
1.
9. the method for testing of protected type motor vertical wet rotor hydrodynamic axial-force testing device as claimed in claim 8, is characterized in that, the liquid in described step b comprises water.
10. the method for testing of protected type motor vertical wet rotor hydrodynamic axial-force testing device as claimed in claim 8, is characterized in that, the rotating speed of described variable-frequency motor is 0-1500rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148220.9A CN103940540B (en) | 2014-04-14 | 2014-04-14 | Protected type motor vertical wet rotor hydrodynamic axial-force testing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148220.9A CN103940540B (en) | 2014-04-14 | 2014-04-14 | Protected type motor vertical wet rotor hydrodynamic axial-force testing device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103940540A true CN103940540A (en) | 2014-07-23 |
| CN103940540B CN103940540B (en) | 2016-03-02 |
Family
ID=51188304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410148220.9A Active CN103940540B (en) | 2014-04-14 | 2014-04-14 | Protected type motor vertical wet rotor hydrodynamic axial-force testing device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103940540B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105740581A (en) * | 2016-03-15 | 2016-07-06 | 上海交通大学 | Friction factor modifying method under ring runner rotation |
| CN105784231A (en) * | 2016-03-11 | 2016-07-20 | 上海交通大学 | Testing apparatus and method for radial pressure flow resistance and asymmetric axial force of circulation at reflowing-hole-included plate surface gap |
| CN105784233A (en) * | 2016-03-31 | 2016-07-20 | 上海交通大学 | Test device and test method for interactive influence of axial pressure flow and circumferential shear flow on clearance flow resistance of each other |
| CN108051130A (en) * | 2017-12-08 | 2018-05-18 | 北京理工大学 | It is a kind of to turn round caliberating device and the method for establishing unprincipled connection |
| CN111232244A (en) * | 2020-04-29 | 2020-06-05 | 北京清航紫荆装备科技有限公司 | Unmanned helicopter rotor system test bench |
| CN111397867A (en) * | 2020-02-26 | 2020-07-10 | 上海交通大学 | Test bench suitable for testing fatigue strength of shielding sleeve of shielding motor pump |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1281937A1 (en) * | 1984-09-20 | 1987-01-07 | Ясногорский машиностроительный завод | Device for measuring axial force of centrifugal pump |
| CN2802482Y (en) * | 2005-01-30 | 2006-08-02 | 陆雄 | Device for measuring axial force for pump |
| CN201302499Y (en) * | 2008-11-18 | 2009-09-02 | 上海东方泵业(集团)有限公司 | Axial thrust-measuring device of shield pump |
| CN201607302U (en) * | 2010-01-14 | 2010-10-13 | 重庆理工大学 | Axial force testing device of continuously variable transmission |
| CN202101803U (en) * | 2011-06-20 | 2012-01-04 | 大连环友屏蔽泵有限公司 | Automatic canned motor pump shaft thrust tester |
| KR20130013259A (en) * | 2011-07-27 | 2013-02-06 | 효성굿스프링스 주식회사 | Axial thrust measurement device for fluid machine |
| CN103147999A (en) * | 2013-03-04 | 2013-06-12 | 上海凯泉泵业（集团）有限公司 | Axial force measuring device and method for multistage direct-connection centrifugal pump |
| CN103452867A (en) * | 2013-08-02 | 2013-12-18 | 上海交通大学 | Test bench for vertical double-flywheel canned motor pump |
| CN103629121A (en) * | 2013-12-12 | 2014-03-12 | 兰州理工大学 | Dynamic axial force testing device for impeller of centrifugal pump |
-
2014
- 2014-04-14 CN CN201410148220.9A patent/CN103940540B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1281937A1 (en) * | 1984-09-20 | 1987-01-07 | Ясногорский машиностроительный завод | Device for measuring axial force of centrifugal pump |
| CN2802482Y (en) * | 2005-01-30 | 2006-08-02 | 陆雄 | Device for measuring axial force for pump |
| CN201302499Y (en) * | 2008-11-18 | 2009-09-02 | 上海东方泵业(集团)有限公司 | Axial thrust-measuring device of shield pump |
| CN201607302U (en) * | 2010-01-14 | 2010-10-13 | 重庆理工大学 | Axial force testing device of continuously variable transmission |
| CN202101803U (en) * | 2011-06-20 | 2012-01-04 | 大连环友屏蔽泵有限公司 | Automatic canned motor pump shaft thrust tester |
| KR20130013259A (en) * | 2011-07-27 | 2013-02-06 | 효성굿스프링스 주식회사 | Axial thrust measurement device for fluid machine |
| CN103147999A (en) * | 2013-03-04 | 2013-06-12 | 上海凯泉泵业（集团）有限公司 | Axial force measuring device and method for multistage direct-connection centrifugal pump |
| CN103452867A (en) * | 2013-08-02 | 2013-12-18 | 上海交通大学 | Test bench for vertical double-flywheel canned motor pump |
| CN103629121A (en) * | 2013-12-12 | 2014-03-12 | 兰州理工大学 | Dynamic axial force testing device for impeller of centrifugal pump |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784231A (en) * | 2016-03-11 | 2016-07-20 | 上海交通大学 | Testing apparatus and method for radial pressure flow resistance and asymmetric axial force of circulation at reflowing-hole-included plate surface gap |
| CN105740581A (en) * | 2016-03-15 | 2016-07-06 | 上海交通大学 | Friction factor modifying method under ring runner rotation |
| CN105740581B (en) * | 2016-03-15 | 2019-04-19 | 上海交通大学 | Friction factor modification method under annular channel rotation |
| CN105784233A (en) * | 2016-03-31 | 2016-07-20 | 上海交通大学 | Test device and test method for interactive influence of axial pressure flow and circumferential shear flow on clearance flow resistance of each other |
| CN108051130A (en) * | 2017-12-08 | 2018-05-18 | 北京理工大学 | It is a kind of to turn round caliberating device and the method for establishing unprincipled connection |
| CN111397867A (en) * | 2020-02-26 | 2020-07-10 | 上海交通大学 | Test bench suitable for testing fatigue strength of shielding sleeve of shielding motor pump |
| CN111232244A (en) * | 2020-04-29 | 2020-06-05 | 北京清航紫荆装备科技有限公司 | Unmanned helicopter rotor system test bench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103940540B (en) | 2016-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103940540B (en) | Protected type motor vertical wet rotor hydrodynamic axial-force testing device and method | |
| CN103630301A (en) | Method for testing liquid lubrication machine seal sealing performance and devices thereof | |
| CN107121286B (en) | A kind of vertical water lubricating radial bearing test device and its test simulation method | |
| CN102410234B (en) | Shielding generator rotor system hydraulic loss test platform and test method | |
| CN105465003A (en) | Axial force testing system and method for vertical shielding pump | |
| CN103900817A (en) | Experiment bench for thrust ball bearing pack of turbodrill | |
| CN105628382A (en) | Reactor coolant pump water lubrication radial bearing test device and test simulation method | |
| CN102808760B (en) | Testing device for three-level fluid dynamic pressure mechanical seal | |
| CN110988029A (en) | Thermal-structural characteristic testing system of high-speed rotating shaft with built-in parallel-shaft rotating heat pipe | |
| CN107605695B (en) | Driving device for slurry pump of double-wheel slot milling machine | |
| CN104977124A (en) | Complete dynamic balance type coupling | |
| CN204214608U (en) | A kind of mechanical sealing performance tester can measuring axial force and temperature between seal face | |
| CN104215441B (en) | A kind of vertical rotor dynamic radial load maintainer and stability test scheme | |
| CN205260355U (en) | Axial force test system of vertical canned motor pump | |
| CN103452867B (en) | Vertical free wheels shielded electric-pump Laboratory Furniture | |
| CN102735422A (en) | Device for studying gap flow field of shielding sleeve of shielding motor | |
| CN202732307U (en) | Three-stage fluid dynamic pressure mechanical sealing test device | |
| CN211121988U (en) | Novel high-speed flywheel test device | |
| CN204575221U (en) | For rotor temperature rise measure in real time hollow coaxial to dragging motor experimental bench | |
| CN104122069B (en) | A kind of asymmetric hydrodynamics axial force high-speed adjustment device of flywheel interstitial fluid | |
| CN203643093U (en) | Testing apparatus for seal performance of liquid lubrication mechanical seal | |
| CN104502104A (en) | Motor bearing test bed | |
| CN104776939B (en) | Hollow coaxial mutual-driving motor test bed for real-time measurement of motor rotor temperature rises | |
| CN106951591A (en) | Shield electric machine main pump flywheel structural optimization method based on Gap Annular Flow drag characteristic | |
| CN203465091U (en) | Radial loading mechanism for high-speed heavy haul railway bearing testing stand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |