CN109932171A - A kind of high speed rotating shaft testing stand - Google Patents

A kind of high speed rotating shaft testing stand Download PDF

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Publication number
CN109932171A
CN109932171A CN201910334159.XA CN201910334159A CN109932171A CN 109932171 A CN109932171 A CN 109932171A CN 201910334159 A CN201910334159 A CN 201910334159A CN 109932171 A CN109932171 A CN 109932171A
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CN
China
Prior art keywords
rotor
shaft
turbocharger
tested
testing stand
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.)
Pending
Application number
CN201910334159.XA
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Chinese (zh)
Inventor
邹正平
许哲智
李欢
付超
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Beihang University
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Beihang University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beihang University filed Critical Beihang University
Priority to CN201910334159.XA priority Critical patent/CN109932171A/en
Publication of CN109932171A publication Critical patent/CN109932171A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to a kind of high speed rotating shaft testing stands, including supporting bottom stage, booster support frame, turbocharger, Rotor carriage, rotor to be tested and the booster drive system that driving medium is inputted to the medium input port of the turbocharger, wherein, the booster support frame and the Rotor carriage are installed on the support bottom stage, the turbocharger is fixed on the booster support frame, the Rotor carriage includes two, the both ends of the rotor to be tested are rotatably set up in respectively on two Rotor carriages, and one end of the rotor to be tested is connected with the turbine shaft of the turbocharger.The present invention realizes the high-speed rotation of rotor to be tested, while the vibration for effectively preventing the components such as turbocharger impacts the rotation of rotor to be tested, improves the accuracy of result of study.

Description

A kind of high speed rotating shaft testing stand
Technical field
The present invention relates to a kind of property of rotor dynamics experimental technique field more particularly to test shaft under high-speed rotation The experimental provision of energy.
Background technique
Since 20th century, with the continuous development of energy industry and aerospace industry, the mankind are for rotating instrument Requirement it is also higher and higher: higher revolving speed, more stably all researchers such as operation, lower power consumption are pursued Target.
Rotation instrument will realize above-mentioned target, the research to its core component rotor be it is particularly important, since rotor is dynamic The theoretical developments of mechanics are mainly based upon linearized theory expansion, and the actual motion state of rotor is nonlinear, rotor The conclusion of theoretical research is usually larger with rotor actual motion state deviation, therefore at present for the research of rotor with experimental study Based on method.
However, being limited to current testing stand, rotor can not obtain higher revolving speed, therefore can only be for middle and slow speed of revolution Rotor is studied, and can not be studied the rotor of high-speed rotation.
Therefore, a set of high speed rotating shaft testing stand is developed, is to meet the needs of studying rotor high-speed rotation state At present the technical issues of those skilled in the art's urgent need to resolve.
Summary of the invention
The object of the present invention is to provide a kind of high speed rotating shaft testing stands, are studied with meeting rotor high-speed rotation state Demand.
In order to achieve the above objectives, high speed rotating shaft testing stand provided by the invention, including support bottom stage, booster support frame, Turbocharger, Rotor carriage, rotor to be tested and to the medium input port of the turbocharger input driving medium Booster drive system, wherein the booster support frame and the Rotor carriage are installed on the support bottom stage, The turbocharger is fixed on the booster support frame, and the Rotor carriage includes two, the rotor to be tested Both ends be rotatably set up on two Rotor carriages respectively, and one end of the rotor to be tested and the turbine increase The turbine shaft of depressor is connected.
Preferably, the switching shaft supporting frame for further including Coupling Shaft and being mounted on the support bottom stage, wherein described turn Spindle support frame is between the booster support frame and the Rotor carriage, and the switching shaft supporting frame includes two A, the both ends of the Coupling Shaft are rotatably set up on two switching shaft supporting frames, and one end of the Coupling Shaft passes through the One yielding coupling is connected with the turbine shaft, the other end of the Coupling Shaft by the second yielding coupling with it is described to be measured The end of preliminary operation is connected.
Preferably, first yielding coupling and second yielding coupling are nylon shaft coupling.
Preferably, the rotor to be tested is rotatably set up on the Rotor carriage by hydrostatic gas-lubricated bearing, The inlet channel of the hydrostatic gas-lubricated bearing is connected to the exhaust outlet of the compressor of the turbocharger.
Preferably, the Coupling Shaft is rotatably set up on the switching shaft supporting frame by angular contact bearing.
Preferably, the angular contact bearing is ceramic bearing.
Preferably, the booster drive system be air supply system comprising gas source, the pipeline to connect with the gas source with And the pressure-regulating valve on the pipeline is set, and the medium input port of the pipeline and the turbocharger passes through nozzle It is connected.
Preferably, the range of speeds of turbine is 0r/min~160000r/min in the turbocharger.
Preferably, the horizontal displacement for detecting the rotor axial displacement to be tested is provided on the Rotor carriage Sensor, and the vertical displacement sensor for detecting the rotor radial displacement to be tested;The rotor to be tested is separate Speed probe is embedded in one end of the turbocharger.
Preferably, the booster support frame is channel steel support frame.
High speed rotating shaft testing stand disclosed in this invention, rotational stability high feature high using turbo charger speed, Rotor to be tested is accelerated into desired speed by the turbine shaft of turbocharger, the high speed for realizing rotor to be tested turns It is dynamic, it is studied so as to the rotor to high-speed rotation;Meanwhile turbocharger is mounted on turbocharger mount, and And turbocharger mount and rotor field spider are installed on support bottom stage, ensure that turbocharger and rotor field spider tool There are enough rigidity, the vibration for effectively preventing the components such as turbocharger impacts the rotation of rotor to be tested, improves The accuracy of result of study.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the high speed rotating shaft testing stand disclosed in the embodiment of the present invention;
Fig. 2 is the structural schematic diagram of the booster support frame in the embodiment of the present invention;
Fig. 3 is the attachment structure schematic diagram of booster drive system and booster in the embodiment of the present invention.
Wherein, 1 is turbocharger, and 2 be the first yielding coupling, and 3 be Coupling Shaft, and 4 be switching shaft supporting frame, and 5 be increasing Depressor support frame, 6 be angular contact bearing, and 7 be the second yielding coupling, and 8 be Rotor carriage, and 9 be rotor to be tested, and 10 be quiet Gas bearing is pressed, 11 be support bottom stage, and 12 be regulating valve, and 13 be pipeline, and 14 be connecting flange.
Specific embodiment
Core of the invention first is that for a kind of high speed rotating shaft testing stand, rotor high-speed rotation state is ground with meeting The demand studied carefully.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description The present invention is described in further detail.
It please also refer to Fig. 1 to Fig. 3, the high speed rotating shaft testing stand disclosed in the present embodiment, including support bottom stage 11, increasing Depressor support frame 5, turbocharger 1, Rotor carriage 8, rotor to be tested 9 and the medium input port to turbocharger 1 The booster drive system of input driving medium, booster support frame 5 and Rotor carriage 8 are installed on support bottom stage 11, Turbocharger 1 is fixed on booster support frame 5, referring to FIG. 1, Rotor carriage 8 includes two, two rotor branch Support 8 is arranged at intervals on support bottom stage 11, and the spacing between two Rotor carriages 8 is less than the whole of rotor 9 to be tested Body length, the both ends of rotor 9 to be tested are rotationally erected at respectively on two Rotor carriages 8, the axis of rotor 9 to be tested It is conllinear with the turbine shaft of turbocharger 1, and one end of rotor to be tested 9 is connected with the turbine shaft of turbocharger 1.
It needs to be illustrated, in the present invention, rotor speed turns in the 5000r/min hereinafter referred to as slow-speed of revolution, rotor Speed is known as moderate rotation in 5000r/min~100000r/min, and rotor speed is in 100000r/min referred above to ultrahigh rotating speed.
Driving medium in booster drive system is input to turbocharger 1 by the medium input port of turbocharger 1 Interior, under the driving of driving medium, turbine carries out high-speed rotation, due to one end of rotor to be tested and the whirlpool of turbocharger 1 It takes turns shaft to be connected, therefore rotor to be tested 9 also achieves high-speed rotation under the drive of turbocharger 1.
Preferably, support bottom stage 11 is T-slot bottom stage, and booster support frame 5 and Rotor carriage 8 pass through bolt respectively It is mounted on support bottom stage 11.
High speed rotating shaft testing stand disclosed in this invention, rotational stability high spy high using 1 revolving speed of turbocharger Rotor 9 to be tested is accelerated to desired speed by the turbine shaft of turbocharger 1, realizes the height of rotor 9 to be tested by point Speed even ultrahigh speed rotation, to realize the purpose studied the rotor of high-speed rotation;Meanwhile turbocharger 1 is installed On booster support frame 5, and booster support frame 5 and Rotor carriage 8 are installed on support bottom stage 11, ensure that Turbocharger 1 and Rotor carriage 8 have enough rigidity, effectively prevent the vibration pair of the components such as turbocharger 1 The rotation of rotor 9 to be tested impacts, and improves the accuracy of result of study.
The influence rotated to rotor 9 to be tested is vibrated in order to further eliminate turbocharger 1, the pressurization in the present embodiment Device support frame 5 is specifically made of channel steel, to increase the rigidity of booster support frame 5.
Rotor 9 to be tested is directly or indirectly connected with turbine shaft, and so-called be connected directly just refers to the one of rotor 9 to be tested End is directly connected with turbine shaft by shaft coupling, although the mode kinetic energy rejection being connected directly is smaller, turbine shaft Vibration is easy to be transferred to rotor 9 to be tested, and rotor 9 to be tested is caused to be easy to produce vibration;
For this purpose, the rotor to be tested 9 in the present embodiment is indirectly connected with turbine shaft, as shown in fig. 1, in booster branch Switching shaft supporting frame 4 is additionally provided between support 5 and Rotor carriage 8, switching shaft supporting frame 4 specifically includes two, and two turn The rotatably mounted Coupling Shaft 3 for having a rigidity on spindle support frame 4, the both ends of Coupling Shaft 3 are rotatably erected at two Coupling Shafts On support frame 4, and one end of Coupling Shaft 3 is connected by the first yielding coupling 2 with turbine shaft, the other end of Coupling Shaft 3 It is connected by the second yielding coupling 7 with the end of rotor to be tested.
The both ends of Coupling Shaft 3 pass through the first yielding coupling 2 and the second yielding coupling 7 and turbine shaft and to be measured respectively Preliminary operation 9 is connected, this can completely cut off generated vibration when turbocharger 1 operating itself, while can automatically adjust turbine Deviation between shaft and rotor to be tested 9 in axial direction, so as to accurate observation and research rotor in high rotation speed operation state Under state.
Disclosed in this invention high speed test platform, secondary speed can adjust between 0~160000r/min, One yielding coupling 2, the second yielding coupling 7 need to guarantee in the range of speeds reliable and stable work, and Coupling Shaft 3 is preferred Be made of carbon steel material, Coupling Shaft 3 need to keep enough rigidity in the range of speeds, avoid itself vibration to entire height Fast shaft testing stand impacts.
Preferably, the first yielding coupling 2 in the embodiment of the present invention and the second yielding coupling 7 are nylon shaft coupling Device.
In order to reduce rotor 9 to be tested suffered frictional force during rotation, preliminary operation to be measured in the present embodiment as far as possible Son 9 is rotatably erected on Rotor carriage 8 by hydrostatic gas-lubricated bearing 10, and the inlet channel of hydrostatic gas-lubricated bearing 10 with The exhaust outlet of the compressor of turbocharger 1 is connected to, and as shown in Figure 3, the exhaust outlet of the compressor of turbocharger 1 is discharged High pressure gas have multiple whereabouts, at least one whereabouts be to the inlet channel of hydrostatic gas-lubricated bearing 10 convey.
Referring to FIG. 1, the Coupling Shaft in the present embodiment is rotationally erected at Coupling Shaft support by angular contact ball bearing 6 On frame 4, in order to reduce the suffered frictional force during rotation of Coupling Shaft 3,6 bearing of angular contact ball in the present embodiment is preferred For ceramic bearing.
As shown in Figure 3, booster drive system is specially air supply system in the embodiment of the present invention, and air supply system includes gas Source (being not shown in Fig. 3), the pipeline 13 to connect with gas source and the various pressure-regulating valves being arranged on pipeline 13, pipeline 13 with The medium input port of turbocharger 1 is connected by nozzle, and gas sprays into inside turbocharger via nozzle at high speeds, drives whirlpool Wheel carries out high speed even ultrahigh speed operating.
High speed rotating shaft examination in order to accurately be detected to vibration of the rotor under specific rotation speeds, disclosed in the present embodiment Test in platform, be provided on Rotor carriage 8 horizontal displacement sensors for detecting 9 axial displacement of rotor to be tested to be measured and For detecting the vertical displacement sensor of 9 radial displacement of rotor to be measured, horizontal displacement sensors and vertical displacement sensor are preferred The Rotor carriage 8 for being arranged far from turbocharger 1 on, and in the one end of rotor to be measured far from turbocharger 1 also It is embedded with speed probe, so as to the revolving speed of precise measurement rotor 9 to be tested.
Certainly, according to the difference of detection project, other kinds of sensor can also be set, other rotations is carried out to rotor The collection of information.
High speed rotating shaft testing stand provided by the present invention is described in detail above.Specific case used herein Principle and implementation of the present invention are described, the above embodiments are only used to help understand side of the invention Method and its core concept.It should be pointed out that for those skilled in the art, not departing from the principle of the invention Under the premise of, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the claims in the present invention In protection scope.

Claims (10)

1. a kind of high speed rotating shaft testing stand, which is characterized in that including supporting bottom stage (11), booster support frame (5), turbocharging Device (1), Rotor carriage (8), rotor to be tested (9) and to the medium input port of the turbocharger (1) input drive The booster drive system of medium, wherein the booster support frame (5) and the Rotor carriage (8) are installed in described It supports on bottom stage (11), the turbocharger (1) is fixed on the booster support frame (5), the Rotor carriage (8) Including two, the both ends of the rotor (9) to be tested are rotatably set up in respectively on two Rotor carriages (8), and institute The one end for stating rotor to be tested (9) is connected with the turbine shaft of the turbocharger (1).
2. high speed rotating shaft testing stand according to claim 1, which is characterized in that further include Coupling Shaft (3) and be mounted on Switching shaft supporting frame (4) on support bottom stage (11), wherein the switching shaft supporting frame (4) is located at the booster branch Between support (5) and the Rotor carriage (8), and the switching shaft supporting frame (4) includes two, the Coupling Shaft (3) Both ends are rotatably set up on two switching shaft supporting frames (4), and one end of the Coupling Shaft (3) passes through the first elastic shaft coupling Device (2) is connected with the turbine shaft, the other end of the Coupling Shaft (3) by the second yielding coupling (7) with it is described to be measured The end of preliminary operation (9) is connected.
3. high speed rotating shaft testing stand according to claim 2, which is characterized in that first yielding coupling (2) and institute Stating the second yielding coupling (7) is nylon shaft coupling.
4. high speed rotating shaft testing stand according to claim 1, which is characterized in that the rotor (9) to be tested passes through quiet Pressure gas bearing (10) is rotatably set up on the Rotor carriage (8), the inlet channel of the hydrostatic gas-lubricated bearing (10) It is connected to the exhaust outlet of the compressor of the turbocharger (1).
5. high speed rotating shaft testing stand according to claim 2, which is characterized in that the Coupling Shaft (3) passes through angular contact axis (6) are held rotatably to be set up on the switching shaft supporting frame (4).
6. high speed rotating shaft testing stand according to claim 5, which is characterized in that the angular contact bearing (6) is ceramic shaft It holds.
7. high speed rotating shaft testing stand according to claim 1, which is characterized in that the booster drive system is gas supply system System comprising gas source, the pipeline (13) to connect with the gas source and the regulating valve (12) being arranged on the pipeline (13), and The pipeline (13) is connected with the medium input port of the turbocharger (1) by nozzle.
8. high speed rotating shaft testing stand described in -7 any one according to claim 1, which is characterized in that the turbocharger (1) range of speeds of turbine is 0r/min~160000r/min in.
9. high speed rotating shaft testing stand according to claim 1, which is characterized in that be provided on the Rotor carriage (8) For detecting the horizontal displacement sensors of rotor to be tested (9) axial displacement, and for detecting the rotor to be tested (9) the vertical displacement sensor of radial displacement;The one end of the rotor to be tested (9) far from the turbocharger (1) is embedded Equipped with speed probe.
10. high speed rotating shaft testing stand described in -7,9 any one according to claim 1, which is characterized in that the booster branch Support (5) is channel steel support frame.
CN201910334159.XA 2019-04-24 2019-04-24 A kind of high speed rotating shaft testing stand Pending CN109932171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910334159.XA CN109932171A (en) 2019-04-24 2019-04-24 A kind of high speed rotating shaft testing stand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910334159.XA CN109932171A (en) 2019-04-24 2019-04-24 A kind of high speed rotating shaft testing stand

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CN109932171A true CN109932171A (en) 2019-06-25

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CN201910334159.XA Pending CN109932171A (en) 2019-04-24 2019-04-24 A kind of high speed rotating shaft testing stand

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110554318A (en) * 2019-09-27 2019-12-10 贵州航天林泉电机有限公司 High-speed alternating-current generator test bed considering speed regulation interval

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CN203858062U (en) * 2014-05-29 2014-10-01 北京航天动力研究所 Standard rotor used for calibration of high-speed rotor dynamic characteristic test bed
CN204514582U (en) * 2014-12-17 2015-07-29 天津大学 A kind of Fault Diagnosis for Rotor System device based on vibration analysis
CN105452689A (en) * 2013-08-20 2016-03-30 申克罗泰克有限责任公司 Aerostatic bearing for a rotor, in particular in a balancing machine
CN108519235A (en) * 2018-03-17 2018-09-11 北京化工大学 Air impeller drive-type birotor testing stand

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1734248A (en) * 2005-06-30 2006-02-15 上海汽轮机有限公司 Apparatus for simulating airflow exciting-vibration in high-speed rotating machine and testing vibration
CN105452689A (en) * 2013-08-20 2016-03-30 申克罗泰克有限责任公司 Aerostatic bearing for a rotor, in particular in a balancing machine
CN203858062U (en) * 2014-05-29 2014-10-01 北京航天动力研究所 Standard rotor used for calibration of high-speed rotor dynamic characteristic test bed
CN204514582U (en) * 2014-12-17 2015-07-29 天津大学 A kind of Fault Diagnosis for Rotor System device based on vibration analysis
CN108519235A (en) * 2018-03-17 2018-09-11 北京化工大学 Air impeller drive-type birotor testing stand

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110554318A (en) * 2019-09-27 2019-12-10 贵州航天林泉电机有限公司 High-speed alternating-current generator test bed considering speed regulation interval
CN110554318B (en) * 2019-09-27 2021-08-27 贵州航天林泉电机有限公司 High-speed alternating-current generator test bed considering speed regulation interval

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Application publication date: 20190625