CN103307101A - Mixed damper - Google Patents

Mixed damper Download PDF

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Publication number
CN103307101A
CN103307101A CN2013101653320A CN201310165332A CN103307101A CN 103307101 A CN103307101 A CN 103307101A CN 2013101653320 A CN2013101653320 A CN 2013101653320A CN 201310165332 A CN201310165332 A CN 201310165332A CN 103307101 A CN103307101 A CN 103307101A
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CN
China
Prior art keywords
damper
rotor
elastic support
rolling bearing
electromagnetic damper
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
Application number
CN2013101653320A
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Chinese (zh)
Other versions
CN103307101B (en
Inventor
周瑾
张发品
徐龙祥
金超武
吉敏来
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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Publication date
Application filed by Nanjing University of Aeronautics and Astronautics filed Critical Nanjing University of Aeronautics and Astronautics
Priority to CN201310165332.0A priority Critical patent/CN103307101B/en
Publication of CN103307101A publication Critical patent/CN103307101A/en
Application granted granted Critical
Publication of CN103307101B publication Critical patent/CN103307101B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
    • F16C27/066—Ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
    • F16C19/527—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to vibration and noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/20—Application independent of particular apparatuses related to type of movement
    • F16C2300/22—High-speed rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/43—Aeroplanes; Helicopters

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention relates to a mixed damper which comprises a base, a rotor, a rolling bearing for supporting the rotor and a squirrel-cage type elastic support for supporting the rolling bearing, wherein the squirrel-cage type elastic support is of a folding-back structure and is directly fixed on the base. The mixed damper also comprises a metal rubber ring arranged between the squirrel-cage type elastic support and an outer ring, and an electromagnetic damper arranged between the squirrel-cage type elastic support and the base. According to the mixed damper, the metal rubber ring provides a main damping and the electromagnetic damper only needs to provide an adjustable damping, thus the integrated size of the damper is favorably reduced, the demands on light and high-speed rotors are met, and the reliability of vibration control of rotary mechanical rotors such as an aero-engine is improved.

Description

Type hybrid damper
Technical field
The present invention relates to a kind of type hybrid damper, be applied in the vibration control apparatus by the rotor-support-foundation system of rolling bearing supporting such as aeroengine.
Background technique
In the rotating machineries such as aeroengine, use rolling bearing as supporting, because the damping that self can provide is very little, be unfavorable for vibration damping.For rotary machine rotor security of system stable operations such as assurance aeroengines, be widely used at present squeeze film damping SFD(Squeeze Film Damper) the bearing technology vibration damping.Because the dynamic property of SFD can not be carried out ACTIVE CONTROL, and in design or mis-machined situation, the nonlinearity of oil film rigidity can occur, cause bistable state, locked and non-coordination precession phenomenon, cause vibration of rotor system excessive in addition bump rub, fatigue, limited the Applicable scope of SFD.
Therefore, the necessary deficiency of prior art being improved to solve prior art.
Summary of the invention
The invention provides a kind of novel mixed damper, carry out the vibration control of the rotary machine rotor systems such as aeroengine, this kind type hybrid damper can remedy the deficiency of squeeze film damper, improves the reliability of the vibration control of the rotary machine rotors such as aeroengine.
The present invention adopts following technological scheme: a kind of type hybrid damper, the rotor cage type elastic support that it includes the rolling bearing of support, rotor, the described rotor of supporting and supports described rolling bearing, wherein rotor cage type elastic support adopts the returning type structure, and directly be fixed on the support, type hybrid damper of the present invention also includes the metal-rubber ring that is arranged between the rotor cage type elastic support inner and outer rings, and is arranged on the electromagnetic damper between described rotor cage type elastic support and the support.
Described electromagnetic damper includes electromagnetic damper silicon steel plate stator, is around in electromagnetic damper coil and electromagnetic damper silicon steel plate group on the electromagnetic damper silicon steel plate stator.
Described electromagnetic damper silicon steel plate group is set on the described rotor cage type elastic support, and a side of described electromagnetic damper silicon steel plate group is by fixing with the copper ring of rotor cage type elastic support interference fit.
Described type hybrid damper also includes sensor stand and described sensor stand is fixed in the sensor gland in described electromagnetic damper left side, and described electromagnetic damper is fixed between described support and the sensor stand.
Described electromagnetic damper adopts 8 utmost point formulas, and described 8 magnetic poles are arranged along described rotor axial.
4 rotor cage type elastic supports that cause in order to the vibration that detects owing to rotor are installed along the radial displacement transducer of the variation of horizontal and vertical direction vibration displacement along the horizontal and vertical direction is uniform on the described sensor stand.
Described rolling bearing is supported on the described rotor cage type elastic support.
The arranged outside of described rolling bearing has bearing (ball) cover, is provided with the pad be used to the axial internal clearance of adjusting described rolling bearing between described bearing (ball) cover and the sensor gland.
Described rotor is located by rolling bearing inner ring.
The present invention has following beneficial effect:
(1). rigidity is large when overcoming independent use rolling bearing, damping is little, and rotor is difficult to cross over critical speed of rotation and vibrate violent shortcoming;
(2). there is oil degradation when avoiding using squeeze film damper, the shortcoming that working state is relevant with temperature and frequency;
(3). rigidity, underdamping when remedying electromagnetic damper and acting directly on rotor-support-foundation system, the uncontrollable large problems such as impact shock;
(4). provide main damping by the metal-rubber ring, electromagnetic damper only need provide adjustable damping, is conducive to reduce the overall dimensions of damper, is fit to the needs of lightweight, high speed rotor;
(5). can under particular job environment such as high temperature, high pressure, high vacuum, ultralow temperature or condition, work.
Description of drawings
Fig. 1 is that electromagnetic damper acts on schematic diagram on the rolling bearing by yielding support in the type hybrid damper of the present invention.
Fig. 2 is the magnetic circuit schematic diagram of the electromagnetic damper shown in Fig. 1.
Fig. 3 is the fundamental diagram of type hybrid damper of the present invention.
Wherein:
1-support, 2-rotor cage type elastic support, 3-right end cap, 4-rolling bearing, 5-metal-rubber ring, 6-electromagnetic damper coil, 7-electromagnetic damper silicon steel plate stator, 8-sensor gland, 9-pad, 10-sensor stand, 11-bearing (ball) cover, 12-seal ring, 13-rotor, 14-radial displacement transducer, 15-copper ring, 16-electromagnetic damper silicon steel plate group, 17-trim ring.。
Embodiment
Below in conjunction with accompanying drawing technological scheme of the present invention is elaborated.
Please refer to Fig. 1 to Fig. 2 and in conjunction with shown in Figure 3, type hybrid damper of the present invention comprises support 1, rotor 13, the rolling bearing 4 of the described rotor 13 of supporting and the returning type rotor cage type elastic support 2 that supports described rolling bearing 4, and its rotor 13 is located by rolling bearing 4 inner rings.Type hybrid damper of the present invention also includes metal-rubber ring 5 between the inner and outer rings that is embedded in returning type rotor cage type elastic support 2 as the metal-rubber damper, rolling bearing 4 is bearing on the rotor cage type elastic support 2 of metal-containing rubber ring 5, is provided with electromagnetic damper simultaneously between rotor cage type elastic support 2 and support 1.Described electromagnetic damper forms with electromagnetic damper silicon steel plate group 16, and is fixed between support 1 and the sensor stand 10 by being wound with electromagnetic damper coil 6 on the electromagnetic damper silicon steel plate stator 7.Electromagnetic damper adopts 8 utmost point formulas, and 8 magnetic poles are along rotor 13 circumferential arrangement, and its magnetic circuit schematic diagram as shown in Figure 2.
Electromagnetic damper silicon steel plate group 16 is sleeved on the rotor cage type elastic support 2, and in a side by fixing with the copper ring 15 of rotor cage type elastic support 2 interference fit, with location electromagnetic damper silicon steel plate group 16.Described sensor stand 10 is fixed on the trim ring 17 in electromagnetic damper left side by sensor gland 8.Arranged outside at described rolling bearing 4 has bearing (ball) cover 11, and described bearing (ball) cover 11 is fixed by screw with sensor gland 8, and pad 9 is set in order to adjust the axial internal clearance of described rolling bearing 4 in the centre.Bearing (ball) cover 11 is fixed on the support 1 by end cap screw (not indicating), and jam sensor support 10, on described sensor stand 10, rotor cage type elastic support 2 that 4 radial displacement transducers 14 cause in order to the vibration that detects owing to rotor 13 all is installed along the changes delta S-x of horizontal and vertical direction vibration displacement along the horizontal and vertical direction, Δ Sx, Δ S-y and Δ Sy(please refer to shown in Figure 3), and then feed back to controller, and by certain alive size of controlling method control electromagnetic damper actuating coil, thereby the damping that the regulation and control electromagnetic damper provides for system suppresses the vibration of rotor.
The rigidity of type hybrid damper of the present invention is mainly provided by rotor cage type elastic support 2, and metal-rubber ring 5 provides main damping, and electromagnetic damper then provides adjustable rigidity and damping, thereby suppresses the vibration of rolling bearing rotor-support-foundation system.In the course of the work, by on sensor stand 10, monitoring because the rotor cage type elastic support 2 horizontal and vertical direction vibration displacements size that rotor oscillation causes along circumferential 4 uniform radial displacement transducers 14, then feed back to controller, and by alive size in certain controlling method control electromagnetic damper actuating coil, thereby regulate and control the vibration that electromagnetic damper provides suitable rigidity and damping to suppress rotor for system.
Above embodiment only for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought that proposes according to the present invention, and any change of doing on the technological scheme basis all falls within the protection domain of the present invention.

Claims (9)

1. type hybrid damper, the rotor cage type elastic support that it includes the rolling bearing of support, rotor, the described rotor of supporting and supports described rolling bearing, wherein rotor cage type elastic support adopts the returning type structure, and directly be fixed on the support, it is characterized in that: type hybrid damper of the present invention also includes the metal-rubber ring that is arranged between the rotor cage type elastic support inner and outer rings, and is arranged on the electromagnetic damper between described rotor cage type elastic support and the support.
2. type hybrid damper as claimed in claim 1, it is characterized in that: described electromagnetic damper includes electromagnetic damper silicon steel plate stator, is around in electromagnetic damper coil and electromagnetic damper silicon steel plate group on the electromagnetic damper silicon steel plate stator.
3. type hybrid damper as claimed in claim 2, it is characterized in that: described electromagnetic damper silicon steel plate group is set on the described rotor cage type elastic support, and a side of described electromagnetic damper silicon steel plate group is by fixing with the copper ring of rotor cage type elastic support interference fit.
4. type hybrid damper as claimed in claim 3, it is characterized in that: described type hybrid damper also includes sensor stand and described sensor stand is fixed in the sensor gland in described electromagnetic damper left side, and described electromagnetic damper is fixed between described support and the sensor stand.
5. type hybrid damper as claimed in claim 4, it is characterized in that: described electromagnetic damper adopts 8 utmost point formulas, and described 8 magnetic poles are arranged along described rotor axial.
6. type hybrid damper as claimed in claim 5 is characterized in that: 4 rotor cage type elastic supports that cause in order to the vibration that detects owing to rotor are installed along the radial displacement transducer of the variation of horizontal and vertical direction vibration displacement along the horizontal and vertical direction is uniform on the described sensor stand.
7. type hybrid damper as claimed in claim 6, it is characterized in that: described rolling bearing is supported on the described rotor cage type elastic support.
8. type hybrid damper as claimed in claim 7, it is characterized in that: the arranged outside of described rolling bearing has bearing (ball) cover, is provided with the pad be used to the axial internal clearance of adjusting described rolling bearing between described bearing (ball) cover and the sensor gland.
9. type hybrid damper as claimed in claim 8, it is characterized in that: described rotor is located by rolling bearing inner ring.
CN201310165332.0A 2013-05-08 2013-05-08 Type hybrid damper Active CN103307101B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310165332.0A CN103307101B (en) 2013-05-08 2013-05-08 Type hybrid damper

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Application Number Priority Date Filing Date Title
CN201310165332.0A CN103307101B (en) 2013-05-08 2013-05-08 Type hybrid damper

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CN103307101A true CN103307101A (en) 2013-09-18
CN103307101B CN103307101B (en) 2015-10-28

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103511550A (en) * 2013-09-30 2014-01-15 西安交通大学 Damper for high-speed oilless bearing rotor system
CN104079111A (en) * 2014-06-12 2014-10-01 中国科学院上海技术物理研究所 Shimmy damping device for spaceflight imaging load shutter
CN108007478A (en) * 2017-12-13 2018-05-08 中国船舶重工集团公司第七0七研究所 Electromagnetic damper
CN109100270A (en) * 2018-08-29 2018-12-28 大连海事大学 A kind of annular fluid channel oil liquid detection device and preparation method thereof
CN110176828A (en) * 2019-04-25 2019-08-27 贵州凯敏博机电科技有限公司 A kind of motor and method of anti-super high impact overload
CN111911531A (en) * 2020-07-29 2020-11-10 中国航发湖南动力机械研究所 Return type elastic supporting structure and engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5802837A (en) * 1996-03-05 1998-09-08 Sfk Textilmaschinen-Komponenten Gmbh Driving bearing device for spinning rotors of open end spinning machines
CN2462139Y (en) * 2001-01-16 2001-11-28 浙江大学 Rigid and damping virable electromagnetic bearing for high speed rotary mechanism
CN2738466Y (en) * 2004-11-04 2005-11-02 浙江大学 Electric eddy-current damping device for rotary mechanical rotor
CN2769611Y (en) * 2004-11-04 2006-04-05 北京航空航天大学 Adaptive squeezing oil film damper with metal rubber external ring
CN101187405A (en) * 2007-12-24 2008-05-28 南京航空航天大学 Centripetal protection bearing for magnetic levitation bearing system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5802837A (en) * 1996-03-05 1998-09-08 Sfk Textilmaschinen-Komponenten Gmbh Driving bearing device for spinning rotors of open end spinning machines
CN2462139Y (en) * 2001-01-16 2001-11-28 浙江大学 Rigid and damping virable electromagnetic bearing for high speed rotary mechanism
CN2738466Y (en) * 2004-11-04 2005-11-02 浙江大学 Electric eddy-current damping device for rotary mechanical rotor
CN2769611Y (en) * 2004-11-04 2006-04-05 北京航空航天大学 Adaptive squeezing oil film damper with metal rubber external ring
CN101187405A (en) * 2007-12-24 2008-05-28 南京航空航天大学 Centripetal protection bearing for magnetic levitation bearing system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103511550A (en) * 2013-09-30 2014-01-15 西安交通大学 Damper for high-speed oilless bearing rotor system
CN103511550B (en) * 2013-09-30 2015-06-03 西安交通大学 Damper for high-speed oilless bearing rotor system
CN104079111A (en) * 2014-06-12 2014-10-01 中国科学院上海技术物理研究所 Shimmy damping device for spaceflight imaging load shutter
CN108007478A (en) * 2017-12-13 2018-05-08 中国船舶重工集团公司第七0七研究所 Electromagnetic damper
CN109100270A (en) * 2018-08-29 2018-12-28 大连海事大学 A kind of annular fluid channel oil liquid detection device and preparation method thereof
CN109100270B (en) * 2018-08-29 2020-10-02 大连海事大学 Annular micro-channel oil liquid detection device and manufacturing method thereof
CN110176828A (en) * 2019-04-25 2019-08-27 贵州凯敏博机电科技有限公司 A kind of motor and method of anti-super high impact overload
CN111911531A (en) * 2020-07-29 2020-11-10 中国航发湖南动力机械研究所 Return type elastic supporting structure and engine
CN111911531B (en) * 2020-07-29 2021-12-24 中国航发湖南动力机械研究所 Return type elastic supporting structure and engine

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Publication number Publication date
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