CN101246071A - Shafting dynamic balance experimental bench - Google Patents
Shafting dynamic balance experimental bench Download PDFInfo
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- CN101246071A CN101246071A CNA2008100175797A CN200810017579A CN101246071A CN 101246071 A CN101246071 A CN 101246071A CN A2008100175797 A CNA2008100175797 A CN A2008100175797A CN 200810017579 A CN200810017579 A CN 200810017579A CN 101246071 A CN101246071 A CN 101246071A
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- shafting
- dynamic balance
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Abstract
The present invention discloses a shafting dynamic balance experiment table which comprises a base and an electric motor whereon, a rotor, a coupling, a bearing base, a sensor base and a weighting disc installed on the rotor, the invention is characterized in that the bearing base and sensor base and three locating surfaces on the base frames are provided with corresponding matching surfaces in order to guarantee the radial matching among the bearing base and the sensor base and base frame, the shafting dynamic balancing experimental table can analog the unbalanced constrained oscillation of the flexible rotor shafting, and effectively reproduce the unbalanced phenomenon generated by the large-scale rotating machinery, and the invention is used for the researching of the rotor dynamic balance and the method. The rotary spped of the experiment table, the shafting hardness, the style of the electric vortex sensor and the style of the coupling are all adjustable. The experiment table has the advantages of reasonable designing, convenient and accurate locating, small and beautiful external appearance, and the invention provides an effective and convenient experiment facility for vibration testing and balance researcher.
Description
Technical field
The present invention relates to a kind of experiment table in overall machine vibration monitoring and control field, particularly a kind of shafting dynamic balance experimental bench.This shafting dynamic balance experimental bench can be simulated the unbalance forced vibration of flexible rotor axle system, and the energy imbalance that effectively reproduces large rotating machinery and produced is used for the research of rotor theory of dynamic and method.
Background technology
Unbalance is the modal fault of large rotating machinery, and its processing procedure also is the most complicated in all faults.Through the research and development of many decades, at the balance method of flex rotor spot dynamic balance, can reduce modal balancing method and influence coefficient method two big classes now.Through many scholars' effort, two kinds of methods have all had many improvement.The combined balance system method that Parkinson and Darlow propose, it has made full use of the characteristics that the vibration shape is separated in the modal balancing method on the basis of influence coefficient method.From counterbalance effect, though said method can be realized the desirable balance of rotor, but because the complicacy of flex rotor diversity structure and actual unbalance situation, simultaneously, since the strictness restriction of the position of cycling start number of times, rotor balancing face and vibration measuring point and number, unknown factors such as dynamic performance, axle be spot dynamic balance up to the present still or a kind of examination under the theory guidance gather process.
On the basis of former achievements, development modal balancing method and influence coefficient method continue to explore new transient equilibrium theory and method and have great importance, and this just be unable to do without experimental verification.A kind of efficiently, experiment of dynamic balancing equipment can provide the balance studies worker effectively and easily laboratory facilities easily.At present, U.S. Bently company has produced the dynamic balance experimental bench of single shaft, but is not linked to be the balance test equipment of axle system.Rotor oscillation simulator stand bearing seat and base that domestic east big vibration measuring instrument plant produces are fixed by slide block guide rail, and sensor stand and base are by monolateral screw retention, and bearing accuracy is lower, introduces non-power frequency fault easily, obscures the research to balancing fault.
Summary of the invention
The purpose of this invention is to provide a kind of shafting dynamic balance experimental bench, this is the unbalance forced vibration that dynamic balance experimental bench can be simulated flexible rotor axle system, effectively reproduce the energy imbalance that large rotating machinery produced, make things convenient for the scientific research personnel to carry out the research of rotor theory of dynamic and method, save the time and efforts that scientific research personnel's cost is used to arrange experiment.
The technical solution that realizes the foregoing invention purpose is:
A kind of shafting dynamic balance experimental bench comprises: a base, be furnished with at least two roots rotors on the base, and every roots rotor is supported by two oiliness bearings, and oiliness bearing is installed in the bearing seat; Directly be connected between rotor and the rotor by rigidity, half elasticity or spring coupling; Rotor by shaft coupling by direct motor drive;
Be equipped with on every roots rotor and increase the weight of dish, increase the weight of to coil equal intervals and be distributed with 16 threaded holes, so that by mounting screw simulation unbalance amount; Also be furnished with two sensor support bases on every roots rotor, be used to install current vortex sensor, directly be connected between rotor and the rotor by rigidity, half elasticity or spring coupling;
It is characterized in that, three locating surfaces (A, B, C) on described bearing seat and sensor support base and the base have corresponding mating surface, with the radial fit between guarantee bearing seat and sensor support base and the base, and by the axial restraint between screw guarantee bearing seat and sensor support base and the base.
Shafting dynamic balance experimental bench of the present invention, the type of its rotating speed, axis rigidity, current vortex sensor type and shaft coupling all can be adjusted.A whole set of experimental facilities is simple in structure, and fitting operation is convenient.The present invention can simulate the unbalance forced vibration of flexible rotor axle system easily, and the energy imbalance that effectively reproduces large rotating machinery and produced is used for the research of rotor theory of dynamic and method.
Description of drawings
Fig. 1 is a shafting dynamic balance experimental bench structural representation of the present invention;
Fig. 2 is the radial fit synoptic diagram of bearing guide rail and base rail;
Fig. 3 is the sensor stand synoptic diagram.
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment
Referring to Fig. 1, shafting dynamic balance experimental bench of the present invention, comprise: a base 18, be furnished with at least two roots rotors (6,14) on the base 18, rotor (6,14) is supported by two oiliness bearings respectively, oiliness bearing is installed in respectively in the bearing seat (3,9,11,17), is connected by shaft coupling 10 between rotor 6 and the rotor 14, and rotor 6 connects motor 1 by shaft coupling 2.
Be equipped with on the rotor 6 and increase the weight of dish (5,7), be equipped with on the rotor 14 and increase the weight of dish (13,15), each increases the weight of to coil equal intervals and is distributed with 16 threaded holes, so that by mounting screw simulation unbalance amount;
Are furnished with two sensor support bases (4,8) on the rotor 6, sensor support base is positioned at bearing seat (3,9) inboard, also be furnished with two sensor support bases (12,16) on the rotor 14, sensor support base is positioned at bearing seat (11,17) inboard, and sensor support base is used to install current vortex sensor;
The mating surface of bearing seat (3,9,11,17) and sensor support base (4,8,12,16) and three locating surface A, B of base 18, the form fit of C, to ensure the radial fit between the parts, and ensure axial restraint between the parts by screw, as shown in Figure 2.
As shown in Figure 3, process the threaded hole of φ 5 current vortex sensors totally in sensor support base (4,8,12,16) two row's level, vertical, two rows (Fig. 3 31,33,35 six places), process the threaded hole of φ 8 current vortex sensors in sensor support base two row (4,8,12,16) 45 ° and 135 ° of directions (32 among Fig. 3,34 altogether everywhere), to satisfy two kinds of needs that the model sensor is general.
Shafting dynamic balance experimental bench of the present invention location is accurately convenient, and the type of rotating speed, axis rigidity, current vortex sensor type and shaft coupling all can be adjusted.
Claims (2)
1. shafting dynamic balance experimental bench comprises: a base, be furnished with at least two roots rotors on the base, and every roots rotor is supported by two oiliness bearings, and oiliness bearing is installed in the bearing seat; Directly be connected between rotor and the rotor by rigidity, half elasticity or spring coupling; Rotor by shaft coupling by direct motor drive;
Be equipped with on every roots rotor and increase the weight of dish, increase the weight of to coil equal intervals and be distributed with 16 threaded holes, so that by mounting screw simulation unbalance amount; Also be furnished with two sensor support bases on every roots rotor, be used to install current vortex sensor, directly be connected between rotor and the rotor by rigidity, half elasticity or spring coupling;
It is characterized in that, three locating surfaces (A, B, C) on described bearing seat and sensor support base and the base have corresponding mating surface, with the radial fit between guarantee bearing seat and sensor support base and the base, and by the axial restraint between screw guarantee bearing seat and sensor support base and the base.
2. shafting dynamic balance experimental bench as claimed in claim 1 is characterized in that, is processed with the threaded hole of current vortex sensor on the level of described sensor support base, 45 °, the vertical and 135 ° of directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100175797A CN101246071B (en) | 2008-02-29 | 2008-02-29 | Shafting dynamic balance experimental bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100175797A CN101246071B (en) | 2008-02-29 | 2008-02-29 | Shafting dynamic balance experimental bench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101246071A true CN101246071A (en) | 2008-08-20 |
| CN101246071B CN101246071B (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2008100175797A Expired - Fee Related CN101246071B (en) | 2008-02-29 | 2008-02-29 | Shafting dynamic balance experimental bench |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936798A (en) * | 2010-08-19 | 2011-01-05 | 西安交通大学 | Equilibrator swing frame system for measuring bidirectional vertical vibration signals |
| CN102095561A (en) * | 2010-12-01 | 2011-06-15 | 浙江省电力试验研究院 | Falling fault positioning method for rotating part of large-size steam turbine |
| CN102507120A (en) * | 2011-11-18 | 2012-06-20 | 上海交通大学 | Generator rotor unbalance magnetic tension testing bench supported by sliding bearings |
| CN102042898B (en) * | 2009-10-20 | 2012-07-04 | 中国北车集团大同电力机车有限责任公司 | Dynamic balancing test tool and dynamic imbalancing trimming method thereof |
| CN103413486A (en) * | 2013-06-24 | 2013-11-27 | 东华大学 | Rigid-rotating-body soft unilateral supporting dynamic balancing machine |
| CN103712797A (en) * | 2013-12-12 | 2014-04-09 | 清华大学 | Experimental device for simulating bolt-connected disk-and-drum rotor of aero-engine |
| CN103884501A (en) * | 2014-04-04 | 2014-06-25 | 华北电力大学（保定） | Multifunctional rotor test bench |
| CN104316265A (en) * | 2014-11-18 | 2015-01-28 | 四川邮科通信技术有限公司 | Balance experiment table |
| CN104764607A (en) * | 2015-04-17 | 2015-07-08 | 兰州理工大学 | Steam turbine rotor fault simulation experiment system |
| CN105203260A (en) * | 2014-11-18 | 2015-12-30 | 四川邮科通信技术有限公司 | Dynamic balance experiment apparatus |
| CN105300642A (en) * | 2014-07-29 | 2016-02-03 | 中国航空工业集团公司沈阳发动机设计研究所 | Shafting impact vibration simulation tester |
| CN105550395A (en) * | 2015-12-04 | 2016-05-04 | 湖南科技大学 | Turbomachinery single supporting shafting geometric centering installation method |
| CN107024332A (en) * | 2017-03-31 | 2017-08-08 | 西安交通大学 | A kind of experimental provision for simulating the pseudo- vibration fault of rotating machinery |
| CN107132048A (en) * | 2017-06-26 | 2017-09-05 | 西安交通大学 | A kind of test system of double, asymmetrical bearing rotor system vibration characteristics |
| CN107314846A (en) * | 2017-07-11 | 2017-11-03 | 哈尔滨工程大学 | A kind of motor unilateral magnetic force measurement apparatus |
| CN108593204A (en) * | 2018-04-10 | 2018-09-28 | 西安交通大学 | A kind of dynamic balance accuracy lifting device and method for ultraprecision spindles |
| CN108716975A (en) * | 2018-07-18 | 2018-10-30 | 浙江理工大学 | Use the damping experiment platform and method of the variable element rotor of piezoelectric actuator |
| CN110146280A (en) * | 2019-06-06 | 2019-08-20 | 西安交通大学 | A kind of rotating machinery dynamic mechanical measurement experimental provision and experimental method |
| CN110285923A (en) * | 2019-07-22 | 2019-09-27 | 上海纳铁福传动系统有限公司 | Dynamic balance test of rotor device |
| CN110545019A (en) * | 2019-09-24 | 2019-12-06 | 上海电气集团上海电机厂有限公司 | shafting alignment process method under three-support double-rotor high-rotating-speed |
| CN113465897A (en) * | 2021-06-29 | 2021-10-01 | 西安交通大学 | Test device for researching Morton effect of cantilever rotor |
-
2008
- 2008-02-29 CN CN2008100175797A patent/CN101246071B/en not_active Expired - Fee Related
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042898B (en) * | 2009-10-20 | 2012-07-04 | 中国北车集团大同电力机车有限责任公司 | Dynamic balancing test tool and dynamic imbalancing trimming method thereof |
| CN101936798B (en) * | 2010-08-19 | 2011-09-21 | 西安交通大学 | Equilibrator swing frame system for measuring bidirectional vertical vibration signals |
| CN101936798A (en) * | 2010-08-19 | 2011-01-05 | 西安交通大学 | Equilibrator swing frame system for measuring bidirectional vertical vibration signals |
| CN102095561A (en) * | 2010-12-01 | 2011-06-15 | 浙江省电力试验研究院 | Falling fault positioning method for rotating part of large-size steam turbine |
| CN102507120A (en) * | 2011-11-18 | 2012-06-20 | 上海交通大学 | Generator rotor unbalance magnetic tension testing bench supported by sliding bearings |
| CN103413486B (en) * | 2013-06-24 | 2016-01-13 | 东华大学 | The soft monolateral support dynamic balancing machine of a kind of rigid rotator |
| CN103413486A (en) * | 2013-06-24 | 2013-11-27 | 东华大学 | Rigid-rotating-body soft unilateral supporting dynamic balancing machine |
| CN103712797A (en) * | 2013-12-12 | 2014-04-09 | 清华大学 | Experimental device for simulating bolt-connected disk-and-drum rotor of aero-engine |
| CN103712797B (en) * | 2013-12-12 | 2016-02-10 | 清华大学 | A kind of experimental provision of simulating aeroplane engine machine bolt terminal pad drum type rotor |
| CN103884501A (en) * | 2014-04-04 | 2014-06-25 | 华北电力大学（保定） | Multifunctional rotor test bench |
| CN105300642A (en) * | 2014-07-29 | 2016-02-03 | 中国航空工业集团公司沈阳发动机设计研究所 | Shafting impact vibration simulation tester |
| CN104316265A (en) * | 2014-11-18 | 2015-01-28 | 四川邮科通信技术有限公司 | Balance experiment table |
| CN105203260A (en) * | 2014-11-18 | 2015-12-30 | 四川邮科通信技术有限公司 | Dynamic balance experiment apparatus |
| CN104764607A (en) * | 2015-04-17 | 2015-07-08 | 兰州理工大学 | Steam turbine rotor fault simulation experiment system |
| CN105550395A (en) * | 2015-12-04 | 2016-05-04 | 湖南科技大学 | Turbomachinery single supporting shafting geometric centering installation method |
| CN105550395B (en) * | 2015-12-04 | 2018-06-22 | 湖南科技大学 | Turbomachinery list supports shafting geometry centering installation method |
| CN107024332A (en) * | 2017-03-31 | 2017-08-08 | 西安交通大学 | A kind of experimental provision for simulating the pseudo- vibration fault of rotating machinery |
| CN107132048B (en) * | 2017-06-26 | 2019-05-24 | 西安交通大学 | A kind of test system of double, asymmetrical bearing rotor system vibration characteristics |
| CN107132048A (en) * | 2017-06-26 | 2017-09-05 | 西安交通大学 | A kind of test system of double, asymmetrical bearing rotor system vibration characteristics |
| CN107314846A (en) * | 2017-07-11 | 2017-11-03 | 哈尔滨工程大学 | A kind of motor unilateral magnetic force measurement apparatus |
| CN107314846B (en) * | 2017-07-11 | 2018-10-26 | 哈尔滨工程大学 | A kind of motor unilateral magnetic force measuring device |
| CN108593204A (en) * | 2018-04-10 | 2018-09-28 | 西安交通大学 | A kind of dynamic balance accuracy lifting device and method for ultraprecision spindles |
| CN108716975A (en) * | 2018-07-18 | 2018-10-30 | 浙江理工大学 | Use the damping experiment platform and method of the variable element rotor of piezoelectric actuator |
| CN108716975B (en) * | 2018-07-18 | 2023-10-20 | 浙江理工大学 | Vibration reduction experiment table and method for variable parameter rotor using piezoelectric driver |
| CN110146280A (en) * | 2019-06-06 | 2019-08-20 | 西安交通大学 | A kind of rotating machinery dynamic mechanical measurement experimental provision and experimental method |
| CN110146280B (en) * | 2019-06-06 | 2024-03-12 | 西安交通大学 | Experimental device and experimental method for measuring dynamic mechanical quantity of rotary machine |
| CN110285923A (en) * | 2019-07-22 | 2019-09-27 | 上海纳铁福传动系统有限公司 | Dynamic balance test of rotor device |
| CN110545019A (en) * | 2019-09-24 | 2019-12-06 | 上海电气集团上海电机厂有限公司 | shafting alignment process method under three-support double-rotor high-rotating-speed |
| CN113465897A (en) * | 2021-06-29 | 2021-10-01 | 西安交通大学 | Test device for researching Morton effect of cantilever rotor |
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| Publication number | Publication date |
|---|---|
| CN101246071B (en) | 2011-06-01 |
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Granted publication date: 20110601 Termination date: 20140229 |