CN101915662A - Bearing-rotor system loading test device and method - Google Patents
Bearing-rotor system loading test device and method Download PDFInfo
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- CN101915662A CN101915662A CN 201010223674 CN201010223674A CN101915662A CN 101915662 A CN101915662 A CN 101915662A CN 201010223674 CN201010223674 CN 201010223674 CN 201010223674 A CN201010223674 A CN 201010223674A CN 101915662 A CN101915662 A CN 101915662A
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Abstract
The invention discloses a bearing-rotor system loading test device and a bearing-rotor system loading test method. The device comprises a static pressure gas bearing, a floating coupling, a pressure sensor, a cylinder, a loading bracket, a direction control valve, a pressure regulation valve A and a pressure regulation valve B, wherein the cylinder is fixed on the loading bracket; the cylinder and the direction control valve are connected through an air pipe and a quick coupling; the direction control valve is connected with an air inlet pipe through the pressure regulation valve A; and the static pressure gas bearing is connected with the air inlet pipe through the pressure regulation valve B. Through the device and the method, an air film is formed between the static pressure gas bearing and a test rotor so as to realize non-contact loading, the rotor can be loaded in the static state or high-speed rotation state, the loading is safe and the loading force is convenient to regulate. During the loading, the non-contact loading method ensures that the dynamic balance property of the rotor is not influenced during the loading and the loading can be performed in the static state, high-speed state and super-high-speed state.
Description
Technical field
The present invention relates to the loading test device of rotating machinery, particularly a kind of Rotor-Bearing System loading test device and method thereof.
Background technology
Rotor-bearing system is the core component of rotating machinery, performances such as the load-bearing capacity of system, stability, rigidity directly influence the safe handling of system under its dynamic and static load, otherwise will cause phenomenons such as system's overload, high vibration, seriously will cause the generation of major accident.Rotor-bearing system is carried out dynamic and static loading test and monitoring, can be unit safety operation and fault diagnosis provides guidance, avoid the generation of serious accident.But, at present the loading method of testing that generally adopts be carry out under rotor static state that contact loads as: spring loading, cylinder loading etc., transient state to Rotor-Bearing System especially opens, stops state and can not carry out dynamic test, can not satisfy growing high speed machine performance test requirement.Be mainly reflected in following aspect:
1, static bearing test loads difficulty, loads discontinuous.
2, the dynamic studies under the no-load situation departs from actual condition, is unfavorable for fully studying the operating characteristic of Rotor-Bearing System.
3, adopt traditional wheel disc to load the dynamic balance that destroys rotor easily, friction easily bumps.Wheel disc loads simultaneously, and the loading scope is single.
4, traditional contact loads, and has more unsafe factor, is unfavorable for personal safety.
Summary of the invention
For solving the problems referred to above of prior art, the present invention will propose a kind of Rotor-Bearing System charger and method thereof that can realize under the high speed rotating state that dynamic load, loading continuously, safety load.
To achieve these goals, technical scheme of the present invention is as follows: a kind of Rotor-Bearing System loading test device, comprise hydrostatic gas-lubricated bearing, floating junction, pressure transducer, cylinder, loading support, directional control valve, pressure-regulating valve A and pressure-regulating valve B, the top of described hydrostatic gas-lubricated bearing is connected with the bottom of floating junction, the top of described floating junction is connected with the bottom of pressure transducer, and the top of described pressure transducer is connected with cylinder; Described cylinder is fixed on and loads on the support, and described cylinder is connected with rapid-acting coupling by tracheae with directional control valve; Described directional control valve is connected with draft tube by pressure-regulating valve A, and described hydrostatic gas-lubricated bearing is connected with draft tube by pressure-regulating valve B.
Hydrostatic gas-lubricated bearing of the present invention and floating junction are by being threaded, described floating junction and pressure transducer are by being threaded, between described pressure transducer and the cylinder by being threaded, described cylinder and load between the support and pass through bolt.
Hydrostatic gas-lubricated bearing of the present invention is a partial arc shape hydrostatic gas-lubricated bearing.
A kind of loading method of testing of Rotor-Bearing System loading test device may further comprise the steps:
A, pressure gas is transported on the hydrostatic gas-lubricated bearing, makes between itself and the testing rotor and form air film by pressure-regulating valve A; By pressure-regulating valve B pressure gas is transported to directional control valve simultaneously, the direction of passage operation valve stretches out the cylinder rod of cylinder downwards, makes hydrostatic gas-lubricated bearing near testing rotor, and forms air film power between hydrostatic gas-lubricated bearing and testing rotor; When air film power and cylinder rod loading force balance, the cylinder rod stop motion, this moment, the loading force of cylinder rod was transferred on the testing rotor;
B, measure the size of loading force by pressure transducer.
The size of pressure-regulating valve A scalable cylinder rod loading force of the present invention, the air film gap between pressure-regulating valve B scalable testing rotor and hydrostatic gas-lubricated bearing.
Compare with existing experimental technique, the present invention has following beneficial effect:
1, because the present invention makes between hydrostatic gas-lubricated bearing and the testing rotor and forms air film, realized the noncontact loading, in the time of can or running up in rotor static state it loaded that load safety, the size adjustment of loading force is convenient.
Therefore 2, because the present invention in loading procedure, adopts non-contacting loading method, can not influence the transient equilibrium characteristic of rotor when loading, can be static, at a high speed, load under the hypervelocity.
3, because the present invention adopts cylinder to load, by the research that can experimentize at the characteristic of different excentricity state lower bearing-rotor-support-foundation systems of the supply gas pressure of regulating cylinder, realize at a high speed under the purpose of size of step-less adjustment loading force.
4, because the present invention adopts cylinder to load, the compressibility of gas, for the motion of cylinder rod and load bearings provides certain space, so rotor is when beating, and load bearings also can relative motion, makes test process more near actual condition.
5, because the present invention adopts floating junction to connect, floating junction has the beat scope of certain angle, therefore when vibration takes place in rotor, be subjected to the influence of air film homogenize effect, hydrostatic gas-lubricated bearing also can be along with the rotor beat, and can not bump with rotor, guarantee experimental system and experimenter's safety.
6, be added with pressure transducer owing to the present invention, thereby can test out the bearer properties of static state, rotation two states lower bearing-rotor-support-foundation system, for the appropriate design optimization system provides reliable experimental basis.
Description of drawings
The present invention is 1 of drawings attached only, wherein:
Fig. 1 is the auxilliary charger synoptic diagram of Rotor-Bearing System gas.
Among the figure: 1, testing rotor, 2, load support, 3, hydrostatic gas-lubricated bearing, 4, floating junction, 5, pressure transducer, 6, cylinder, 7, directional control valve, 8, pressure-regulating valve A, 9, pressure-regulating valve B.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.As shown in Figure 1, a kind of Rotor-Bearing System loading test device, comprise hydrostatic gas-lubricated bearing 3, floating junction 4, pressure transducer 5, cylinder 6, load support 2, directional control valve 7, pressure-regulating valve A8 and pressure-regulating valve B9, the top of described hydrostatic gas-lubricated bearing 3 is connected with the bottom of floating junction 4, the top of described floating junction 4 is connected with the bottom of pressure transducer 5, and the top of described pressure transducer 5 is connected with cylinder 6; Described cylinder 6 is fixed on and loads on the support 2, and described cylinder 6 is connected with rapid-acting coupling by tracheae with directional control valve 7; Described directional control valve 7 is connected with draft tube by pressure-regulating valve A8, and described hydrostatic gas-lubricated bearing 3 is connected with draft tube by pressure-regulating valve B9.Described hydrostatic gas-lubricated bearing 3 and floating junction 4 are by being threaded, described floating junction 4 and pressure transducer 5 are by being threaded, between described pressure transducer 5 and the cylinder 6 by being threaded, described cylinder 6 and load between the support 2 and pass through bolt.Described hydrostatic gas-lubricated bearing 3 is partial arc shape hydrostatic gas-lubricated bearings 3.
A kind of loading method of testing of Rotor-Bearing System loading test device may further comprise the steps:
A, pressure gas is transported on the hydrostatic gas-lubricated bearing 3, makes between itself and the testing rotor 1 and form air film by pressure-regulating valve A8; By pressure-regulating valve B9 pressure gas is transported to directional control valve 7 simultaneously, direction of passage operation valve 7 stretches out the cylinder rod of cylinder 6 downwards, makes hydrostatic gas-lubricated bearing 3 near testing rotor 1, and forms air film power at hydrostatic gas-lubricated bearing 3 and 1 of testing rotor; When air film power and cylinder rod loading force balance, the cylinder rod stop motion, this moment, the loading force of cylinder rod was transferred on the testing rotor 1;
B, measure the size of loading force by pressure transducer 5.
The size of pressure-regulating valve A8 scalable cylinder rod loading force of the present invention, the air film gap that pressure-regulating valve B9 scalable testing rotor 1 and hydrostatic gas-lubricated bearing are 3.
Using method of the present invention may further comprise the steps:
1, whole device is installed according to Fig. 1, and connect gas circuit on request.
2, feed pressurized air to hydrostatic gas-lubricated bearing 2,, regulate pressure-regulating valve B9 pressure is adjusted to the 0.1-0.6MPa scope according to the carrying size.
3, to pressure-regulating valve A8 ventilation, pressure is adjusted to the 0.1-0.2MPa scope, control directional control valve 7 slowly stretches out the cylinder rod of cylinder 6 downwards.
When 4, formation air film gap between hydrostatic gas-lubricated bearing 2 and testing rotor 1, and air film supported power reaches with cylinder power output balance, the cylinder rod stop motion.
5, regulate pressure-regulating valve B9, supply gas pressure is transferred to about 0.1-0.6MPa.
6, according to the carrying size, accurately regulate pressure-regulating valve A8, make pressure satisfy test request.
Claims (5)
1. Rotor-Bearing System loading test device, it is characterized in that: comprise hydrostatic gas-lubricated bearing (3), floating junction (4), pressure transducer (5), cylinder (6), load support (2), directional control valve (7), pressure-regulating valve A (8) and pressure-regulating valve B (9), the top of described hydrostatic gas-lubricated bearing (3) is connected with the bottom of floating junction (4), the top of described floating junction (4) is connected with the bottom of pressure transducer (5), and the top of described pressure transducer (5) is connected with cylinder (6); Described cylinder (6) is fixed on and loads on the support (2), and described cylinder (6) is connected with rapid-acting coupling by tracheae with directional control valve (7); Described directional control valve (7) is connected with draft tube by pressure-regulating valve A (8), and described hydrostatic gas-lubricated bearing (3) is connected with draft tube by pressure-regulating valve B (9).
2. a kind of Rotor-Bearing System loading test device according to claim 1, it is characterized in that: described hydrostatic gas-lubricated bearing (3) and floating junction (4) are by being threaded, described floating junction (4) and pressure transducer (5) are by being threaded, between described pressure transducer (5) and the cylinder (6) by being threaded, described cylinder (6) and load between the support (2) and pass through bolt.
3. a kind of Rotor-Bearing System loading test device according to claim 1 is characterized in that: described hydrostatic gas-lubricated bearing (3) is a partial arc shape hydrostatic gas-lubricated bearing (3).
4. the loading method of testing of a Rotor-Bearing System loading test device as claimed in claim 1 is characterized in that: may further comprise the steps:
A, pressure gas is transported on the hydrostatic gas-lubricated bearing (3), makes between itself and the testing rotor (1) and form air film by pressure-regulating valve A (8); By pressure-regulating valve B (9) pressure gas is transported to directional control valve (7) simultaneously, direction of passage operation valve (7) stretches out the cylinder rod of cylinder (6) downwards, make hydrostatic gas-lubricated bearing (3) near testing rotor (1), and between hydrostatic gas-lubricated bearing (3) and testing rotor (1), form air film power; When air film power and cylinder rod loading force balance, the cylinder rod stop motion, this moment, the loading force of cylinder rod was transferred on the testing rotor (1);
B, measure the size of loading force by pressure transducer (5).
5. the loading method of testing of a Rotor-Bearing System loading test device as claimed in claim 4, it is characterized in that: the size of described pressure-regulating valve A (8) scalable cylinder rod loading force, the air film gap between pressure-regulating valve B (9) scalable testing rotor (1) and hydrostatic gas-lubricated bearing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010223674XA CN101915662B (en) | 2010-07-09 | 2010-07-09 | Bearing-rotor system loading test device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010223674XA CN101915662B (en) | 2010-07-09 | 2010-07-09 | Bearing-rotor system loading test device and method |
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| CN101915662A true CN101915662A (en) | 2010-12-15 |
| CN101915662B CN101915662B (en) | 2012-06-13 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121875A (en) * | 2010-12-17 | 2011-07-13 | 大连理工大学 | Dynamic loading comprehensive experimental table for gas bearing-rotor system |
| CN103185683A (en) * | 2011-12-29 | 2013-07-03 | 财团法人石材暨资源产业研究发展中心 | Air film rigidity detection platform of air-suspending plane bearing and application method thereof |
| CN103543011A (en) * | 2013-10-11 | 2014-01-29 | 华中科技大学 | Static-pressure bearing test stand |
| CN106404400A (en) * | 2016-11-21 | 2017-02-15 | 西安工业大学 | Integrated high-stiffness gas thrust bearing dynamic performance test experiment table |
| CN106768828A (en) * | 2017-03-06 | 2017-05-31 | 浙江工业大学 | A kind of non-contacting gas hydrostatic spindle air film flow field test system |
| CN108426712A (en) * | 2018-01-31 | 2018-08-21 | 西安工业大学 | Wholecircle circumferentially slides radial test and loading device |
| CN110296839A (en) * | 2019-08-13 | 2019-10-01 | 中国工程物理研究院机械制造工艺研究所 | Gas film pressure test device and test method for gas bearing |
| CN113532860A (en) * | 2021-09-13 | 2021-10-22 | 南昌新宝路航空科技有限公司 | Automatic regulating system for aviation accessory bearing bonding |
| CN114544174A (en) * | 2022-02-14 | 2022-05-27 | 浙江工业大学 | Ultrasonic suspension bearing capacity testing device |
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| JP2004177166A (en) * | 2002-11-25 | 2004-06-24 | Koyo Seiko Co Ltd | Nrro measuring apparatus |
| CN2741032Y (en) * | 2004-06-11 | 2005-11-16 | 西安工业学院 | Presure distribution testing table of air static pressure bearing |
| CN101055000A (en) * | 2007-03-03 | 2007-10-17 | 大连海事大学 | High pressure big angle-wrap porous section-variable closed type air-floating ball bearing |
| CN101196431A (en) * | 2006-12-05 | 2008-06-11 | 上海电气集团股份有限公司 | Testing device of crankshaft rotor-bearing system dynamics experimental bench |
| CN201757729U (en) * | 2010-07-09 | 2011-03-09 | 大连海事大学 | Loading test device of bearing-rotor system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004177166A (en) * | 2002-11-25 | 2004-06-24 | Koyo Seiko Co Ltd | Nrro measuring apparatus |
| CN2741032Y (en) * | 2004-06-11 | 2005-11-16 | 西安工业学院 | Presure distribution testing table of air static pressure bearing |
| CN101196431A (en) * | 2006-12-05 | 2008-06-11 | 上海电气集团股份有限公司 | Testing device of crankshaft rotor-bearing system dynamics experimental bench |
| CN101055000A (en) * | 2007-03-03 | 2007-10-17 | 大连海事大学 | High pressure big angle-wrap porous section-variable closed type air-floating ball bearing |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121875B (en) * | 2010-12-17 | 2012-05-16 | 大连理工大学 | Dynamic loading comprehensive experimental table for gas bearing-rotor system |
| CN102121875A (en) * | 2010-12-17 | 2011-07-13 | 大连理工大学 | Dynamic loading comprehensive experimental table for gas bearing-rotor system |
| CN103185683A (en) * | 2011-12-29 | 2013-07-03 | 财团法人石材暨资源产业研究发展中心 | Air film rigidity detection platform of air-suspending plane bearing and application method thereof |
| CN103185683B (en) * | 2011-12-29 | 2016-09-07 | 财团法人石材暨资源产业研究发展中心 | The air film rigidity detection platform of air-flotation type plane bearing and using method thereof |
| CN103543011A (en) * | 2013-10-11 | 2014-01-29 | 华中科技大学 | Static-pressure bearing test stand |
| CN103543011B (en) * | 2013-10-11 | 2016-04-13 | 华中科技大学 | A kind of hydrostatic support testing table |
| CN106404400A (en) * | 2016-11-21 | 2017-02-15 | 西安工业大学 | Integrated high-stiffness gas thrust bearing dynamic performance test experiment table |
| CN106768828B (en) * | 2017-03-06 | 2023-05-23 | 浙江工业大学 | Non-contact type gas static pressure main shaft gas film flow field test system |
| CN106768828A (en) * | 2017-03-06 | 2017-05-31 | 浙江工业大学 | A kind of non-contacting gas hydrostatic spindle air film flow field test system |
| CN108426712A (en) * | 2018-01-31 | 2018-08-21 | 西安工业大学 | Wholecircle circumferentially slides radial test and loading device |
| CN108426712B (en) * | 2018-01-31 | 2024-03-08 | 西安工业大学 | Full circumferential sliding radial testing and loading device |
| CN110296839A (en) * | 2019-08-13 | 2019-10-01 | 中国工程物理研究院机械制造工艺研究所 | Gas film pressure test device and test method for gas bearing |
| CN110296839B (en) * | 2019-08-13 | 2024-02-06 | 中国工程物理研究院机械制造工艺研究所 | Air film pressure testing device and testing method for gas bearing |
| CN113532860A (en) * | 2021-09-13 | 2021-10-22 | 南昌新宝路航空科技有限公司 | Automatic regulating system for aviation accessory bearing bonding |
| CN113532860B (en) * | 2021-09-13 | 2021-12-21 | 南昌新宝路航空科技有限公司 | Automatic regulating system for aviation accessory bearing bonding |
| CN114544174A (en) * | 2022-02-14 | 2022-05-27 | 浙江工业大学 | Ultrasonic suspension bearing capacity testing device |
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