CN102507120A - Generator rotor unbalance magnetic tension testing bench supported by sliding bearings - Google Patents
Generator rotor unbalance magnetic tension testing bench supported by sliding bearings Download PDFInfo
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Abstract
The invention discloses a generator rotor unbalance magnetic tension testing bench supported by sliding bearings, which includes a variable magnetic pole logarithmic generator rotor main shaft system and a testing bench basic framework. The rotor main shaft system includes a generator rotor, a front sliding bearing support subsystem, a sensor bracket, a stator front end cover, a generator rotor core and a magnet exciting coil, a generator stator, a collecting ring, a carbon brush bracket, a carbon brush, a stator rear end cover, and a rear sliding bearing support subsystem. The generator rotor core and the colleting ring are both mounted on the generator rotor, front and rear ends of the generator rotor are supported by the front and the rear sliding bearing support subsystems, and the generator stator is mounted outside the generator rotor. The testing bench basic framework includes an electromotor, a low-speed coupler, a speed-changing gear box and a high-speed coupler, wherein the electromotor is connected with a low-speed shaft of the speed-changing gear box through the low-speed coupler, and a high-speed shaft of the speed-changing gear box is connected with the generator rotor through the high-speed coupler.
Description
Technical field
The present invention relates to the generator amature unbalanced magnetic pull test experimental bed that a kind of sliding bearing supports.
Background technology
Electric power occupies main status in the AND ENERGY RESOURCES CONSUMPTION IN CHINA structure, hydropower and thermal power generation are my present topmost power sources, and wherein thermal power generation remains topmost, the stable power source of China at present.The hydropower unit is driven by the hydraulic turbine, and rotating speed is lower, thereby adopts the electric energy of the rigid rotator structure of multipole logarithm with the acquisition mains frequency, and rotor is the tubbiness type, and the nominal operation rotating speed is far below its first critical speed; The thermo-power station genset is usually by the steam turbine or the gas turbine drives of fire coal; Running speed is high, load is big; Thereby large-scale thermo-power station generally adopts one pole to alternator; And adopt sliding bearing to support, and generator amature is a slender type, its nominal operation rotating speed is higher than its first critical speed.
When generator runs up; Because the off-centre between rotor and stator; Form non-uniform gap magnetic field, can produce the uneven electromagnetic force that has radially with tangential component, can make system vibration aggravation, generating efficiency reduce; Influence the economy of the safe operation and the power station operation of unit, more remarkable for its influence of large-scale, flexible genset.Study the mechanism of action and the influence factor of eccentric magnetic pull, all have important directive significance for system design, vibration control, fault diagnosis etc.
Summary of the invention
The purpose of this invention is to provide the generator amature unbalanced magnetic pull test experimental bed that a kind of sliding bearing supports; It is a kind of multi-functional, adaptation multi-state experimental study test platform; Can test the distribution of the circumferential oil film pressure of sliding bearing; But and testing rotor system system vibration performance under different exciting voltage, multiple load behavior condition, number of pole-pairs and balance weighting distribution wheel dish quality through adjustment generator rotor core coil can obtain two groups of test macros respectively.Possesses test macro in the ability of striding two times of vibratory responses in the first critical speed process; Through changing load characteristic; Can test generator under zero load, balanced load, the unbalance load, under resistive/multiple conditions such as inductive/capacitive load, the uneven electromagnetic force that produces owing to the off-centre between rotor and stator is to the influence of system vibration.
Technical scheme of the present invention is following:
The generator amature unbalanced magnetic pull test experimental bed that a kind of sliding bearing supports comprises variable magnetic pole logarithm generator amature axis system and experiment table basic boom.
Wherein, variable magnetic pole logarithm generator amature axis system further comprises:
Generator amature, fifth wheel, front slide bearings subsystem, sensor stand, stator front end end cover, generator rotor core and field coil, generator unit stator, collector ring, carbon brush support, carbon brush, stator rear end cap, back sliding bearing support subsystem;
Said fifth wheel, generator rotor core, collector ring are installed on the said generator amature; Said generator amature rear and front end is supported by said forward and backward sliding bearing support subsystem; Said generator unit stator is installed in outside the said generator amature, and said stator front end end cover, stator rear end cap are installed on the generator unit stator, and said carbon brush support is installed on the stator rear end cap;
The experiment table basic boom further comprises:
Motor, low-speed shaft coupler, speed-changing gear box, high speed shaft coupling, platform; Said motor is connected with the slow-speed shaft of said speed-changing gear box through said low-speed shaft coupler, and said gear change case high speed axis is connected with said generator amature through said high speed shaft coupling; Motor finally drives the generator amature running through low-speed shaft coupler, high speed shaft coupling, speed-changing gear box; Said motor, speed-changing gear box, sensor stand and forward and backward sliding bearing support subsystem all are installed on the said platform.
Preferably, said variable magnetic pole logarithm generator amature axis system also comprises the counterweight wheel disc; Said counterweight wheel disc is arranged on the rotor.
Preferably; The number of pole-pairs and the balance weighting distribution wheel dish quality of adjustment generator rotor core coil; Come the first critical speed of regulating system, can obtain two groups of test macros respectively: a) four utmost point three-phase synchronous alternator rotor experiment tablees, its nominal operation rotating speed 1500rpm/1800rpm; It is lower than system's first natural frequency, can regard the rigid rotator test macro as; B) the two poles of the earth threephase alternator rotor experiment table, its nominal operation rotating speed is 3000rpm/3600rpm, it is higher than system's first natural frequency, can regard the flex rotor test macro as.
Preferably, corresponding said rigid rotator test macro, generator amature are installed four iron cores and corresponding field coil, connect between each coil, form two pole pairs.
Preferably, corresponding said flex rotor test macro, generator amature are installed two iron cores and corresponding field coil, connect between each coil, form a pole pair; And generator rotor core left and right sides symmetry is installed two counterweight wheel discs, is used to regulate the rotor-support-foundation system first critical speed.
Preferably, the field coil of generator amature adopts the externally fed excitation, through regulating supply voltage, can regulate excitation field intensity, but and then the analysis of magnetic field strength to the influence of generator amature system vibration.
Preferably, the field coil of said generator amature is supplied power through an outside adjustable straightening stream stabilized voltage supply; Said D.C. regulated power supply connects carbon brush, and carbon brush contacts with collector ring, and collector ring connects field coil.
Preferably, said variable magnetic pole logarithm generator amature axis system generator unit stator output load regulating system, it further comprises:
Load circuit, the combination of one or more of variohm, variable condenser, variometer;
Through in each phase output terminal of stator, inserting different loads, can obtain different load behaviors, and then the vibratory response of testing rotor system under the different loads operating mode.
Preferably, said front slide bearings subsystem includes with back sliding bearing support subsystem:
Front end end cover, sliding bearing, cushion block, bearing seat, bearing seat upper end cover, rear end cap; Said sliding bearing is installed in the said bearing seat; And through said bearing seat upper end cover location; Said front end end cover and rear end cap are used for the bearing seat sealing; Generator amature is installed in the sliding bearing, and the lubricating oil of sliding bearing infeeds in the bearing seat through said bearing seat upper end cover, and through the oil return of said front end end cover spill port.
Preferably, said variable magnetic pole logarithm generator amature axis system also comprises pressure transducer; Said loading ability of bearing face is along circumferentially processing several capillary pressure guide holes; Derive smoothly for guaranteeing pressure; The capillary pressure guide hole has multistage aperture; Said capillary pressure guide hole and said pressure transducer are adaptive, and it is used for oil film pressure is exported to the pressure transducer gauge head, distribute thereby measure the bearing oil film pressure; The pressure transducer immersion oil is fit into the capillary pressure guide hole.
Compared with prior art, beneficial effect of the present invention is following:
1, the present invention is the flexible generator amature unbalanced magnetic pull test platform of sliding bearing support, present domestic this kind experiment porch that still do not have.
2, generator amature of the present invention system adopts sliding bearing to support, and rotor is through good transient equilibrium, and maximum speed can reach 12000rpm, and flexible generator amature experiment table system possesses strides two times of first critical speeds and stride the critical power of test of second order.
3, the present invention is furnished with 5 pressure transducers at hydrodynamic bush(ing) bearing loading end, can measure the circumferential oil film pressure of bearing and distribute.
4, the present invention can be through the number of pole-pairs and the balance weighting distribution wheel dish quality of adjustment rotor core and field coil; Come the first critical speed and the nominal operation rotating speed of regulating system; Can obtain rigidity four utmost point three-phase synchronous alternator rotor experiment tablees, flexible the two poles of the earth three-phase synchronous AC generator rotor experiment table respectively, the different test macro of two covers.
5, the present invention can test under uneven electromagnet pull and oil film bearings couple of force cooperation usefulness, and the vibration characteristics of two times of first critical speeds is striden by system, can test oil whirl, oil whip characteristic and the unbalanced magnetic pull influence dynamic response characteristics of system down.
6, the field voltage of scalable rotor core coil of the present invention is regulated excitation field intensity, and then tests the response characteristic of generator amature system under the different exciting magnetic field intensity.
7, the present invention can test the response characteristic of generator system under zero load, balanced load, unbalance load, varying duty, perception/capacitive/various working such as resistive load.
Description of drawings
Fig. 1 is the structural representation of specific embodiment of the invention experiment table basic boom;
Fig. 2 is the exploded view of specific embodiment of the invention variable magnetic pole logarithm generator amature axis system;
Fig. 3 be specific embodiment of the invention variable magnetic pole logarithm generator amature axis system cut-open view;
Fig. 4 is the structural representation of the forward and backward sliding bearing support subsystem of the specific embodiment of the invention;
Fig. 5 is the structural representation of specific embodiment of the invention sliding bearing;
Fig. 6 is the structural representation of half-watt under the specific embodiment of the invention sliding bearing;
Fig. 7 is for inventing the cut-open view of half-watt under the practical implementation sliding bearing this year;
Fig. 8 is the exploded view of the specific embodiment of the invention four utmost point three-phase rigidity alternator rotor axis systems;
Fig. 9 be the specific embodiment of the invention four utmost point three-phase rigidity alternator rotor axis systems cut-open view;
Figure 10 is the specific embodiment of the invention four utmost point three-phase rigidity alternator rotor iron-core coil excitation voltage regulation schematic diagrams;
Figure 11 is the exploded view of specific embodiment of the invention the two poles of the earth three-phase flexible AC generator amature axis system;
Figure 12 be specific embodiment of the invention the two poles of the earth three-phase flexible AC generator amature axis system cut-open view;
Figure 13 is specific embodiment of the invention the two poles of the earth three-phase flexible AC generator rotor core coil magnetization voltage-regulation schematic diagrams.
Embodiment
The below combines accompanying drawing and specific embodiment that the present invention is done further description.
Embodiment
Like Fig. 1 to Fig. 3, the generator amature unbalanced magnetic pull test experimental bed that a kind of sliding bearing supports comprises variable magnetic pole logarithm generator amature axis system, experiment table basic boom and generator unit stator output load regulating system.
Wherein, variable magnetic pole logarithm generator amature axis system further comprises:
The first counterweight wheel disc 305, the second counterweight wheel disc 313 are arranged on the generator amature 301, and split the front and back side of rotor core and field coil 308.Here be merely for example, during practical implementation, also the counterweight wheel disc can be set.
Wherein, the experiment table basic boom further comprises:
Motor 101, low-speed shaft coupler 102, speed-changing gear box 103, high speed shaft coupling 104, platform 108; Motor 101 is connected with the slow-speed shaft of speed-changing gear box 103 through low-speed shaft coupler 102, and speed-changing gear box 103 high speed shafts are connected with generator amature 301 through high speed shaft coupling 104; Motor 101 turns round through low-speed shaft coupler 102, high speed shaft coupling 104, the speed-changing gear box 103 final generator amatures 301 that drive; Motor 101, speed-changing gear box 103, sensor stand and forward and backward sliding bearing support subsystem all are installed on the platform 108.
Generator unit stator output load regulating system, it further comprises:
Load circuit, the combination of one or more of variohm, variable condenser, variometer;
Through in each phase output terminal of stator, inserting different loads, can obtain different load behaviors, and then the vibratory response of testing rotor system under the different loads operating mode.
Like Fig. 4, in the present embodiment, front slide bearings subsystem 303 includes with back sliding bearing support subsystem 315:
Front end end cover 401, sliding bearing 402, cushion block 403, bearing seat 404, bearing seat upper end cover 405, rear end cap 406; Sliding bearing 402 is installed in the bearing seat 404; And through bearing seat upper end cover 405 location; Front end end cover 401 is used for the bearing seat sealing with rear end cap 406; Generator amature 301 is installed in the sliding bearing 402, and the lubricating oil of sliding bearing 402 infeeds in the bearing seat 404 through bearing seat upper end cover 405, and through front end end cover 401 spill port oil returns.
Said variable magnetic pole logarithm generator amature axis system also comprises pressure transducer; Said loading ability of bearing face is along circumferentially processing several capillary pressure guide holes; Derive smoothly for guaranteeing pressure; The capillary pressure guide hole has multistage aperture; Said capillary pressure guide hole and said pressure transducer are adaptive, and it is used for oil film pressure is exported to the pressure transducer gauge head, distribute thereby measure the bearing oil film pressure; The pressure transducer immersion oil is fit into the capillary pressure guide hole.
The field coil of generator amature 301 adopts the externally fed excitation, through regulating supply voltage, can regulate excitation field intensity, but and then the analysis of magnetic field strength to the influence of generator amature system vibration.
In the present embodiment, the field coil of generator amature 301 is supplied power through an outside adjustable straightening stream stabilized voltage supply; Said D.C. regulated power supply connects carbon brush, and carbon brush contacts with collector ring 310, and collector ring 310 connects field coil.
Present embodiment; The number of pole-pairs and the balance weighting distribution wheel dish quality of adjustment generator rotor core coil; First critical speed that can regulating system is to obtain two groups of test macros respectively: a) four utmost point three-phase synchronous alternator rotor experiment tablees, its nominal operation rotating speed 1500rpm/1800rpm (25Hz/30Hz); It is lower than system's first natural frequency, can regard the rigid rotator test macro as; B) the two poles of the earth threephase alternator rotor experiment table, its nominal operation rotating speed is 3000rpm/3600rpm (50Hz/60Hz), it is higher than system's first natural frequency, can regard the flex rotor test macro as.
Corresponding said rigid rotator test macro, generator amature are installed four iron cores and corresponding field coil, connect between each coil, form two pole pairs.
Corresponding said flex rotor test macro, generator amature are installed two iron cores and corresponding field coil, connect between each coil, form a pole pair; And generator rotor core left and right sides symmetry is installed two counterweight wheel discs.
Specify the course of work of the embodiment of the invention below.
The measuring method that the circumferential oil film pressure of sliding bearing distributes
The sliding bearing that this experiment table adopts is a kind of hydrodynamic bush(ing) bearing, and this class bearing generally is used at a high speed, the support of over-load rotor, all adopts this kind supporting way like large-scale steam turbine, gas turbine rotor.Measure the oil film bearings pressure distribution, for obtaining oil film dynamic characteristic coefficients, research hydrodynamic lubrication mechanism, all significant.The metering system that oil film pressure distributes is extremely shown in Figure 7 with reference to Fig. 5.
Like Fig. 5 to Fig. 7, sliding bearing is a center dissection type cylindrical radial sliding bearing, by last half-watt 62, half-watt 61 two parts are formed down.Fig. 6 and Fig. 7 detail measurement and the installation method of pressure transducer 5 of oil film pressure.Like Fig. 6 and shown in Figure 7, lubricating oil gets into oil pocket 2 through oil supplying hole 1; When generator amature rotates, lubricating oil in the oil pocket is taken out of, formed the pressure oil film; Thereby realize lubricated; Lubricating oil releases through end face or draining wedge 4 under the effect of pressure, and through the oil return circuit oil return, thereby realize the lubrication oil circulation supply.
Distribute for measuring the sliding bearing circumferential pressure, half-watt is along circumferentially having 5 capillary pressure guide holes, in Fig. 6 under sliding bearing; For accurately measuring oil film pressure, not broken again simultaneously rim bearing carries tiling 3, suitably choose the diameter of pressure guide hole; For to avoid the too small capillary effect that causes of capillary pressure guide hole diameter to influence the measurement of oil film pressure, capillary pressure guide hole length can not be long simultaneously, and the capillary pressure guide hole should be according to bearing size; Make multistage aperture form; Wherein, the hole of minimum-value aperture in the multistage aperture in the 6 corresponding pressure guide holes, as shown in Figure 7.Pressure transducer 5 adopts the screw thread installation form to be installed in the threaded hole 7, and with the thread locking adhesive sealing, during setting pressure sensor 5, should adopt immersion oil to install, and guarantees to install in the vestibule to be full of lubricating oil, avoids air to get into, and influences the measurement of pressure.Lubricating oil pressure is passed to the pressure transducer gauge head through the capillary pressure guide hole, thus experimental oil mould force measurement.
) method to set up of rigid rotator test macro:
Said here rigid rotator is meant that the nominal operation rotating speed is lower than system's first critical speed.
Rigidity generator amature test macro: rotor is 4 utmost points, 3 cross streams generator amatures, and the nominal operation rotating speed is 25Hz/30Hz, less than system's first critical speed.Generator amature 301 is installed 4 rotor cores and corresponding field coil, connects between the field coil, forms 2 pole pairs.Its structure composition and dress mode are referring to Fig. 8 and shown in Figure 9.
In the native system, need not be equipped with the counterweight wheel disc, can think that the quality of counterweight this moment wheel disc is zero.
Like Figure 10, four field coils are connected successively, thereby form 2 pole pairs.The positive and negative polarities of adjustable straightening stream stabilized voltage supply 501 are connected on the carbon brush 502, and carbon brush 502 contacts with two electrodes of collector ring, and the two poles of the earth of collector ring are connected on the two poles of the earth of field coil, thereby realize to rotor core coil power supply and excitation.Through regulating supply voltage, the magnitude of field intensity that can regulate field coil, thus can test under different exciting magnetic field the vibratory response when eccentric generator amature receives uneven electromagnet pull.
) method to set up of flex rotor test macro:
Flex rotor is meant that its nominal operation rotating speed is higher than the first critical speed of system.
Flexible generator amature test macro: rotor is the two poles of the earth threephase alternator rotors, and its nominal operation rotating speed is 50Hz/60Hz, greater than system's first critical speed.Rotor is installed 2 rotor cores and corresponding field coil thereof; Connect between the field coil, form 1 pole pair, in addition for the regulating system first critical speed; Two counterweights of symmetry installation and balance are used wheel disc in the rotor core left and right sides, and the composition of its axis system is shown in figure 11.
Shown in figure 12; Generator amature 301 is installed among front slide bearings system 303 and the back plain bearing unit 315, and fifth wheel 302 is installed on the generator amature, and sensor stand 304,314 is installed near the generator amature; With the rotor noncontact; Counterweight wheel disc 305,313 symmetries are installed on the rotor, and radiator fan is installed 306 and is installed on the generator amature 301, and 2 intimate coils 308 of rotor-exciting adopt screw to be installed on the generator amature 301; Collector ring 310 is installed on the rotor 301; Generator unit stator cover 309 is enclosed within on the rotor 301, and stator front end end cover 306, rear end cap 312 are installed on the generator unit stator, and the carbon brush support is installed on the stator rear end cap 312.
Like Figure 13, two axially symmetry installations of field coil, series connection is as shown in the figure successively, thereby forms 1 pole pair.The positive and negative polarities of adjustable straightening stream stabilized voltage supply 501 are connected on the carbon brush 502, and carbon brush contacts with two electrodes of collector ring, and the two poles of the earth of collector ring are connected on the two poles of the earth of iron-core coil, thereby realize to rotor core coil power supply and excitation.Through regulating supply voltage, the magnitude of field intensity that can regulate field coil, thus can test under different exciting magnetic field the vibratory response when eccentric generator amature receives uneven electromagnet pull.
) method to set up of multiple load behavior
After the generator amature system runs well, produce induced voltage output in the generator unit stator winding, can set different load behaviors flexibly according to the research needs.The threephase stator winding that Figure 13 connects for the Y type, and enumerated three kinds of typical its load form.
Idle condition: what load three-phase output does not take over
Balanced load: three-phase output connects same nature and identical size loads, as inserting resistive, inductive, capacity load simultaneously
Unbalance load: three-phase connects the combination in any of the load of various characteristics everywhere, but as going into the same nature different size loads in U-N, V-N and W-N termination; Or U-N, V-N and W-N termination are gone into load of different nature; Or all inserting resistive load at U-N and V-N end, W-N hold zero load.Through different load combinations, can study the vibration characteristics of different operating mode lower rotor part system
Varying duty: the load size that three-phase output inserts can be regulated in experiment, as inserting variohm, variometer, variable condenser, the perhaps combination of various characteristics load.
Compared with prior art, beneficial effect of the present invention is following:
1, the present invention is the flexible generator amature unbalanced magnetic pull test platform of sliding bearing support, present domestic this kind experiment porch that still do not have.
2, generator amature of the present invention system adopts sliding bearing to support, and rotor is through good transient equilibrium, and maximum speed can reach 12000rpm, and system possesses strides two times of first critical speeds and stride the critical power of test of second order.
3, the present invention is furnished with 5 pressure transducers at hydrodynamic bush(ing) bearing loading end, can measure the circumferential oil film pressure of bearing and distribute.
4, the present invention can be through the number of pole-pairs and the balance weighting distribution wheel dish quality of adjustment rotor core and field coil; Come the first critical speed and the nominal operation rotating speed of regulating system; Can obtain rigidity four utmost point three-phase synchronous alternator rotor experiment tablees, flexible the two poles of the earth three-phase synchronous AC generator rotor experiment table respectively, the different test macro of two covers.
5, the present invention can test under uneven electromagnet pull and oil film bearings couple of force cooperation usefulness, and the vibration characteristics of two times of first critical speeds is striden by system, can test oil whirl, oil whip characteristic and the unbalanced magnetic pull influence dynamic response characteristics of system down.
6, the field voltage of scalable rotor core coil of the present invention is regulated excitation field intensity, and then tests the response characteristic of generator amature system under the different exciting magnetic field intensity.
7, the present invention can test the response characteristic of generator system under zero load, balanced load, unbalance load, varying duty, perception/capacitive/various working such as resistive load.
The preferred embodiment of the present invention just is used for helping to set forth the present invention.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this invention yet and is merely described embodiment.Obviously, according to the content of this instructions, can do a lot of modifications and variation.These embodiment are chosen and specifically described to this instructions, is in order to explain principle of the present invention and practical application better, thereby person skilled can be utilized the present invention well under making.The present invention only receives the restriction of claims and four corner and equivalent.
Claims (10)
1. the generator amature unbalanced magnetic pull test experimental bed that sliding bearing supports is characterized in that, comprising: variable magnetic pole logarithm generator amature axis system and experiment table basic boom;
Variable magnetic pole logarithm generator amature axis system further comprises:
Generator amature, fifth wheel, front slide bearings subsystem, sensor stand, stator front end end cover, generator rotor core and field coil, generator unit stator, collector ring, carbon brush support, carbon brush, stator rear end cap, back sliding bearing support subsystem;
Said fifth wheel, generator rotor core, collector ring are installed on the said generator amature; Said generator amature rear and front end is supported by said forward and backward sliding bearing support subsystem; Said generator unit stator is installed in outside the said generator amature, and said stator front end end cover, stator rear end cap are installed on the generator unit stator, and said carbon brush support is installed on the stator rear end cap;
The experiment table basic boom further comprises:
Motor, low-speed shaft coupler, speed-changing gear box, high speed shaft coupling, platform; Said motor is connected with the slow-speed shaft of said speed-changing gear box through said low-speed shaft coupler, and said gear change case high speed axis is connected with said generator amature through said high speed shaft coupling; Motor finally drives the generator amature running through low-speed shaft coupler, high speed shaft coupling, speed-changing gear box; Said motor, speed-changing gear box, sensor stand and forward and backward sliding bearing support subsystem all are installed on the said platform.
2. experiment table according to claim 1 is characterized in that, said variable magnetic pole logarithm generator amature axis system also comprises the counterweight wheel disc; Said counterweight wheel disc is arranged on the rotor.
3. experiment table according to claim 1 and 2; It is characterized in that the number of pole-pairs and the balance weighting distribution wheel dish quality of adjustment generator rotor core coil are come the first critical speed of regulating system; Can obtain two groups of test macros respectively: a) four utmost point three-phase synchronous alternator rotor experiment tablees; Its nominal operation rotating speed 1500rpm/1800rpm, it is lower than system's first natural frequency, can regard the rigid rotator test macro as; B) the two poles of the earth threephase alternator rotor experiment table, its nominal operation rotating speed is 3000rpm/3600rpm, it is higher than system's first natural frequency, can regard the flex rotor test macro as.
4. experiment table according to claim 3 is characterized in that, corresponding said rigid rotator test macro, generator amature are installed four iron cores and corresponding field coil, connect between each coil, form two pole pairs.
5. experiment table according to claim 3 is characterized in that, corresponding said flex rotor test macro, generator amature are installed two iron cores and corresponding field coil, connect between each coil, form a pole pair; And generator rotor core left and right sides symmetry is installed two counterweight wheel discs.
6. experiment table according to claim 1; It is characterized in that the field coil of generator amature adopts the externally fed excitation, through regulating supply voltage; Can regulate excitation field intensity, but and then the analysis of magnetic field strength to the influence of generator amature system vibration.
7. experiment table according to claim 6 is characterized in that, the field coil of said generator amature is supplied power through an outside adjustable straightening stream stabilized voltage supply; Said D.C. regulated power supply connects carbon brush, and carbon brush contacts with collector ring, and collector ring connects field coil.
8. experiment table according to claim 1 is characterized in that, also comprises generator unit stator output load regulating system, and it further comprises:
Load circuit, the combination of one or more of variohm, variable condenser, variometer;
Through in each phase output terminal of stator, inserting different loads, can obtain different load behaviors, and then the vibratory response of testing rotor system under the different loads operating mode.
9. experiment table according to claim 1 is characterized in that, said front slide bearings subsystem includes with back sliding bearing support subsystem:
Front end end cover, sliding bearing, cushion block, bearing seat, bearing seat upper end cover, rear end cap; Said sliding bearing is installed in the said bearing seat; And through said bearing seat upper end cover location; Said front end end cover and rear end cap are used for the bearing seat sealing; Generator amature is installed in the sliding bearing, and the lubricating oil of sliding bearing infeeds in the bearing seat through said bearing seat upper end cover, and through the oil return of said front end end cover spill port.
10. experiment table according to claim 9 is characterized in that, said variable magnetic pole logarithm generator amature axis system also comprises pressure transducer; Said loading ability of bearing face is along circumferentially processing several capillary pressure guide holes; Derive smoothly for guaranteeing pressure; The capillary pressure guide hole has multistage aperture; Said capillary pressure guide hole and said pressure transducer are adaptive, and it is used for oil film pressure is exported to the pressure transducer gauge head, distribute thereby measure the bearing oil film pressure; The pressure transducer immersion oil is fit into the capillary pressure guide hole.
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| CN201110367989.6A CN102507120B (en) | 2011-11-18 | 2011-11-18 | Generator rotor unbalance magnetic tension testing bench supported by sliding bearings |
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| CN201110367989.6A CN102507120B (en) | 2011-11-18 | 2011-11-18 | Generator rotor unbalance magnetic tension testing bench supported by sliding bearings |
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| CN112393833A (en) * | 2020-11-10 | 2021-02-23 | 中国船舶重工集团公司第七0七研究所 | Measuring device and measuring method for measuring unbalanced magnetic tension of limited-angle motor |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1082710A (en) * | 1996-09-05 | 1998-03-31 | Toshiba Corp | Balance measuring unit for rotor |
| CN1275830A (en) * | 1999-05-31 | 2000-12-06 | Abb阿尔斯托姆电力(瑞士)股份有限公司 | Installation of generator rotor in magnetic field |
| CN1852004A (en) * | 2006-04-30 | 2006-10-25 | 南京航空航天大学 | High-speed motor system having multiple redundance functions |
| CN101158614A (en) * | 2007-11-15 | 2008-04-09 | 中北大学 | High speed chief axis on-line dynamic poise device |
| CN101246071A (en) * | 2008-02-29 | 2008-08-20 | 西安交通大学 | Shafting dynamic balance experimental bench |
| CN101950000A (en) * | 2010-08-14 | 2011-01-19 | 潮州市汇能电机有限公司 | Dragging device for large and medium hydro-generator attribute test |
-
2011
- 2011-11-18 CN CN201110367989.6A patent/CN102507120B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1082710A (en) * | 1996-09-05 | 1998-03-31 | Toshiba Corp | Balance measuring unit for rotor |
| CN1275830A (en) * | 1999-05-31 | 2000-12-06 | Abb阿尔斯托姆电力(瑞士)股份有限公司 | Installation of generator rotor in magnetic field |
| CN1852004A (en) * | 2006-04-30 | 2006-10-25 | 南京航空航天大学 | High-speed motor system having multiple redundance functions |
| CN101158614A (en) * | 2007-11-15 | 2008-04-09 | 中北大学 | High speed chief axis on-line dynamic poise device |
| CN101246071A (en) * | 2008-02-29 | 2008-08-20 | 西安交通大学 | Shafting dynamic balance experimental bench |
| CN101950000A (en) * | 2010-08-14 | 2011-01-19 | 潮州市汇能电机有限公司 | Dragging device for large and medium hydro-generator attribute test |
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| CN111766065A (en) * | 2020-08-18 | 2020-10-13 | 安徽朝坤测试设备有限公司 | Oil film whirl and oil film vibration fault signal detection device and method |
| CN111946748B (en) * | 2020-08-20 | 2021-11-16 | 天津市城西广源电力工程有限公司 | Magnetic processing bearing in wind motor and processing equipment thereof |
| CN111946748A (en) * | 2020-08-20 | 2020-11-17 | 董文昌 | Magnetic processing bearing in wind motor and processing equipment thereof |
| CN112393833A (en) * | 2020-11-10 | 2021-02-23 | 中国船舶重工集团公司第七0七研究所 | Measuring device and measuring method for measuring unbalanced magnetic tension of limited-angle motor |
| CN112393833B (en) * | 2020-11-10 | 2023-01-17 | 中国船舶重工集团公司第七0七研究所 | Measuring device and measuring method for measuring unbalanced magnetic tension of limited-angle motor |
| CN113092298A (en) * | 2021-03-22 | 2021-07-09 | 三峡大学 | Current-carrying frictional wear simulation test device and method for lower carbon brush and collecting ring of eccentric runout of hydraulic generator |
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