CN111486813A - Device and method for measuring static misalignment of two rotors - Google Patents
Device and method for measuring static misalignment of two rotors Download PDFInfo
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- CN111486813A CN111486813A CN202010368210.1A CN202010368210A CN111486813A CN 111486813 A CN111486813 A CN 111486813A CN 202010368210 A CN202010368210 A CN 202010368210A CN 111486813 A CN111486813 A CN 111486813A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
- G01B21/24—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes for testing alignment of axes
Abstract
The application belongs to the field of aircraft engines, and particularly relates to a device and a method for measuring static misalignment of two rotors. The device comprises: the device comprises a first rotor, a second rotor, a measuring bracket and a displacement sensor. The first rotor is arranged on the first support; the second rotor is arranged on a second support and can be connected with the first rotor and rotate together; the measuring support has connecting portion and with the installation pole that connecting portion are connected, connecting portion set up on the first rotor, and can follow the circumference of first rotor is rotatory, the installation pole with the axial direction of first rotor is parallel, and extend to the outside of second rotor, install two displacement sensor on the installation pole in proper order, two it has predetermined distance to be right to have between the displacement sensor the second rotor carries out radial measurement. The method and the device can realize the measurement of the misalignment amount of the two rotors under the static state, and are economical, practical and simple to operate.
Description
Technical Field
The application belongs to the field of aircraft engines, and particularly relates to a device and a method for measuring static misalignment of two rotors.
Background
Some devices with rotors may require multiple rotors in series due to different requirements. Since each rotor has a substantially independent support system, misalignment of the connections between the rotors can occur, thereby affecting smooth operation of the rotors. Severe misalignment can cause abnormal vibration of the equipment, making it one of the most common vibration problems typical of rotating machines.
In the prior art, there are two main measurement methods for misalignment of two rotors, one is measurement by using a dial gauge: firstly fixing a dial indicator on the end face of one shaft, performing end jump measurement on the other shaft to obtain deflection angles of the two rotors, after the deflection angles are adjusted, fixing the dial indicator again, performing radial measurement on the other shaft, and adjusting the centers of the two rotors to coincide, namely completing centering; the other is to fix the laser generator on one rotor and the laser receiver on the other rotor by using a shelf product, such as a laser centering instrument, and the two rotors are connected and then rotated to obtain the displacement required to be corrected by the rotor support. For the misalignment fault, the two methods mainly have the effects of adjusting the misalignment and cannot accurately measure the misalignment medium, so most research results are concentrated on the representation characteristics of the vibration, and the correlation between the misalignment medium and the vibration characteristics cannot be formed.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The application aims to provide a device and a method for measuring static misalignment of two rotors so as to solve at least one problem in the prior art.
The technical scheme of the application is as follows:
a first aspect of the present application provides a two-rotor static misalignment measurement apparatus, comprising:
a first rotor mounted on a first support;
a second rotor mounted on a second support, the second rotor being connectable for common rotation with the first rotor;
the measuring support, the measuring support have connecting portion and with the installation pole that connecting portion are connected, connecting portion set up on the first rotor, and can follow the circumference of first rotor is rotatory, the installation pole with the axial direction parallel of first rotor, and extend to the outside of second rotor, install two displacement sensor on the installation pole in proper order, two have predetermined distance between the displacement sensor, can be right the second rotor carries out radial measurement.
Optionally, the second rotor may be coupled to the first rotor by a coupling.
Optionally, a mounting ring is coaxially mounted on the outer wall of the first rotor, a plurality of threaded holes are uniformly formed in the mounting ring along the circumferential direction, threaded holes are formed in the connecting portion of the measuring support, and the connecting portion of the measuring support is connected with the mounting ring of the first rotor through a bolt.
Optionally, the connecting portion of the measuring bracket is integrally formed with the mounting rod.
A second aspect of the present application provides a two-rotor static misalignment measuring method, based on the two-rotor static misalignment measuring apparatus, including:
mounting a measuring bracket on a first rotor, mounting two displacement sensors on a mounting rod of the measuring bracket along the axial direction of the first rotor, and acquiring the distance L between the two displacement sensors;
step two: marking the second rotor;
step three: rotating the measuring support on the first rotor to enable the two displacement sensors to correspond to each marking point in sequence, and recording the test values of the two displacement sensors when the two displacement sensors correspond to each marking point respectively until all the marking points are measured;
and fourthly, acquiring the static asymmetry between the first rotor and the second rotor according to the preset distance L between the two displacement sensors and the measured values of the two displacement sensors.
Optionally, in the second step, the marking of the second rotor specifically includes: and 12 marking points are uniformly arranged along the circumferential direction of the second rotor.
Optionally, in step four, the obtaining the static misalignment amount between the first rotor and the second rotor according to the predetermined distance L between the two displacement sensors and the measurement values of the two displacement sensors includes:
drawing the radar according to the positions of 12 marking points by taking the measured value of one displacement sensor at the first marking point as a referenceDetermining the center O of the radar chart1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O1、O2And O3And if the first rotor and the second rotor are completely overlapped, the first rotor and the second rotor are completely centered.
Optionally, in step four, the obtaining the static misalignment amount between the first rotor and the second rotor according to the predetermined distance L between the two displacement sensors and the measurement values of the two displacement sensors includes:
drawing a radar chart according to the positions of 12 marking points by taking the measured value of one displacement sensor at the first marking point as a reference, and determining the circle center O of the radar chart1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O2And O3Completely overlap to obtain O2、O3And O1Distance D of1The offset of the first rotor and the second rotor which are parallel under the static state is D1。
Optionally, in step four, the obtaining the static misalignment amount between the first rotor and the second rotor according to the predetermined distance L between the two displacement sensors and the measurement values of the two displacement sensors includes:
drawing a radar chart according to the positions of 12 marking points by taking the measured value of one displacement sensor at the first marking point as a reference, and determining the circle center O of the radar chart1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O2And O3Non-coincident with the line connecting the two and O1In the center of the same stripOn-line, get O2And O3Distance D of2Then the static deflection angle θ of the first rotor and the second rotor is:
optionally, in step four, the obtaining the static misalignment amount between the first rotor and the second rotor according to the predetermined distance L between the two displacement sensors and the measurement values of the two displacement sensors includes:
drawing a radar chart according to the positions of 12 marking points by taking the measured value of one displacement sensor at the first marking point as a reference, and determining the circle center O of the radar chart1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O2And O3Are not overlapped and the connection line of the two is connected with O1Not on the same centerline, obtaining O2And O3Distance D of2And O and1and O2And O3Perpendicular D to the line3The offset of the first rotor and the second rotor which are parallel under the static state is D3And the static deflection angle theta of the first rotor and the second rotor is as follows:
the invention has at least the following beneficial technical effects:
the static misalignment measuring device for the two rotors can realize misalignment measuring under the static state of the two rotors, and is economical, practical and simple to operate.
Drawings
FIG. 1 is a schematic view of a two rotor installation of one embodiment of the present application;
FIG. 2 is a schematic view of a two-rotor static misalignment measuring device according to an embodiment of the present application;
FIG. 3 is a schematic illustration of the marker positions for a two-rotor static misalignment measurement method according to an embodiment of the present application;
FIG. 4 is a schematic view of a two rotor full alignment according to an embodiment of the present application;
FIG. 5 is a schematic view of two rotors in parallel misalignment according to one embodiment of the present application;
FIG. 6 is a schematic illustration of two rotor angle misalignment of one embodiment of the present application;
FIG. 7 is a schematic view of a two rotor integrated misalignment according to an embodiment of the present application.
Wherein:
1-a first rotor; 2-a second rotor; 3-measuring the support; 4-displacement sensor.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1 to 7.
The first aspect of the present application provides a two-rotor static misalignment measurement device, comprising: a first rotor 1, a second rotor 2, a measuring support 3 and a displacement sensor 4.
Specifically, as shown in fig. 1 and 2, a first rotor 1 is mounted on a first support, a second rotor 2 is mounted on a second support, and the second rotor 2 and the first rotor 1 are connected together for rotation through a coupling or the like. The measurement holder 3 has a connection portion and a mounting rod connected to the connection portion, and the connection portion of the measurement holder 3 is provided on the first rotor 1 and is rotatable in the circumferential direction of the first rotor 1. The mounting rod of the measuring support 3 is parallel to the axial direction of the first rotor 1 and extends to the outer side of the second rotor 2, two displacement sensors 4 are sequentially mounted on the mounting rod, a preset distance is reserved between the two displacement sensors 4, and radial measurement can be performed on the second rotor 2.
The application discloses two rotors static misalignment measuring device is mainly to first rotor 1 and second rotor 2 under interconnect state not, to the static misalignment between two rotors measure, finally gives the deflection angle and the central skew displacement volume that two rotors are not centered.
In an embodiment of the present application, a mounting ring may be coaxially disposed on an outer wall of the first rotor 1, a plurality of threaded holes are uniformly formed in the mounting ring along a circumferential direction, a connecting portion of the measuring bracket 3 is also formed with a threaded hole, and the connecting portion of the measuring bracket 3 is connected to the mounting ring of the first rotor 1 through a bolt. In this embodiment, the mounting ring of the first rotor 1 is uniformly provided with 12 threaded holes along the circumferential direction.
In one embodiment of the present application, the connecting portion and the mounting rod are preferably integrally formed.
Based on the above two-rotor static misalignment amount measuring device, a second aspect of the present application provides a two-rotor static misalignment amount measuring method, which specifically includes the following steps:
mounting a measuring bracket on a first rotor, mounting two displacement sensors on a mounting rod of the measuring bracket along the axial direction of the first rotor, and acquiring the distance L between the two displacement sensors;
step two: marking the second rotor;
step three: rotating the measuring bracket on the first rotor to enable the two displacement sensors to sequentially correspond to each marking point, and respectively recording the test values of the two displacement sensors when the two displacement sensors correspond to each marking point until all the marking points are completely measured;
and step four, acquiring the static misalignment between the first rotor and the second rotor according to the preset distance L between the two displacement sensors and the measured values of the two displacement sensors.
In one embodiment of the present application, as shown in fig. 3, in the second step, the marking of the second rotor is specifically: 12 marking points are uniformly arranged along the circumferential direction of the second rotor.
The misalignment of the two rotors generally includes parallel misalignment, angular misalignment, and comprehensive misalignment (both parallel misalignment and angular misalignment). in this embodiment, the obtaining of the static misalignment between the first rotor and the second rotor according to the predetermined distance L between the two displacement sensors and the measured values of the two displacement sensors includes the following cases:
as shown in fig. 4, the specific steps for the complete alignment of the two rotors include:
taking the measured value of one displacement sensor at the first mark point as a reference, drawing a radar chart according to the positions of 12 mark points, and determining the circle center O of the radar chart1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O1、O2And O3And when the first rotor and the second rotor are completely overlapped, the first rotor and the second rotor are completely centered.
As shown in fig. 5, for the case that the two rotors are not aligned in parallel, the specific steps include:
taking the measured value of one displacement sensor at the first mark point as a reference, drawing a radar chart according to the positions of 12 mark points, and determining the circle center O of the radar chart1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O2And O3Completely overlap to obtain O2、O3And O1Distance D of1The offset of the first rotor and the second rotor which are parallel under the static state is D1。
In one embodiment of the present application, O is measured2And O3Completely coincide with O1Is 1.2cm, i.e. D1＝1.2cm。
As shown in fig. 6, for the case that the two rotors are not aligned angularly, the specific steps include:
taking the measured value of one displacement sensor at the first mark point as a reference, drawing a radar chart according to the positions of 12 mark points, and determining the circle center O of the radar chart1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O2And O3Non-coincident with the line connecting the two and O1On the same center line, obtain O2And O3Distance D of2Then, the static deflection angle θ of the first rotor and the second rotor is:
in one embodiment of the present application, the distance L between the two displacement sensors is 10cm, O2And O3Distance D of24cm, the static deflection angle of the first rotor and the second rotor is
As shown in fig. 7, for the case that the two rotors have comprehensive misalignment, the specific steps include:
taking the measured value of one displacement sensor at the first mark point as a reference, drawing a radar chart according to the positions of 12 mark points, and determining the circle center O of the radar chart1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O2And O3Are not overlapped and the connection line of the two is connected with O1Not on the same centerline, obtaining O2And O3Distance D of2And O and1and O2And O3Perpendicular D to the line3The offset of the first rotor and the second rotor which are parallel under the static state is D3And the static deflection angle theta of the first rotor and the second rotor is as follows:
in one embodiment of the present application, the distance L between the two displacement sensors is 10cm, measuring O2And O3Distance D of2＝4cm，O1And O2And O3Perpendicular D to the line31.8cm, the offset of the first rotor and the second rotor which are parallel under the static state is 1.8cm, and the static deflection angle of the first rotor and the second rotor is
The method for measuring the static misalignment of the two rotors provides a method for calculating the misalignment value of the two rotors under four conditions of complete alignment, parallel misalignment, angle misalignment and comprehensive misalignment.
The device and the method for measuring the static misalignment of the two rotors can realize the misalignment measurement of the two rotors in a static state, obtain the misalignment deflection angle and the misalignment displacement of the center of the two rotors, and are economical, practical and simple to operate.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A two-rotor static misalignment amount measuring device is characterized by comprising:
a first rotor (1), said first rotor (1) being mounted on a first support;
a second rotor (2), said second rotor (2) being mounted on a second support, said second rotor (2) being connectable to and co-rotating with said first rotor (1);
measuring support (3), measuring support (3) have connecting portion and with the installation pole that connecting portion are connected, connecting portion set up on first rotor (1), and can follow the circumference of first rotor (1) is rotatory, the installation pole with the axial direction of first rotor (1) is parallel, and extend to the outside of second rotor (2), install two displacement sensor (4) on the installation pole in proper order, two have predetermined distance between displacement sensor (4), can be right radial measurement is carried out to second rotor (2).
2. A two-rotor static misalignment amount measuring device according to claim 1, characterized in that the second rotor (2) can be coupled with the first rotor (1) by a coupling.
3. The two-rotor static misalignment measuring device according to claim 1, wherein a mounting ring is coaxially mounted on the outer wall of the first rotor (1), a plurality of threaded holes are uniformly formed in the mounting ring along the circumferential direction, a threaded hole is formed in the connecting portion of the measuring bracket (3), and the connecting portion of the measuring bracket (3) is connected with the mounting ring of the first rotor (1) through a bolt.
4. A two-rotor static misalignment measuring device according to claim 3, characterized in that the connecting part of the measuring bracket (3) is integrally formed with the mounting bar.
5. A two-rotor static misalignment amount measuring method based on the two-rotor static misalignment amount measuring apparatus of any one of claims 1 to 4, comprising:
mounting a measuring bracket on a first rotor, mounting two displacement sensors on a mounting rod of the measuring bracket along the axial direction of the first rotor, and acquiring the distance L between the two displacement sensors;
step two: marking the second rotor;
step three: rotating the measuring support on the first rotor to enable the two displacement sensors to correspond to each marking point in sequence, and recording the test values of the two displacement sensors when the two displacement sensors correspond to each marking point respectively until all the marking points are measured;
and fourthly, acquiring the static asymmetry between the first rotor and the second rotor according to the preset distance L between the two displacement sensors and the measured values of the two displacement sensors.
6. The two-rotor static misalignment measuring method according to claim 5, wherein in the second step, the marking of the second rotor is specifically: and 12 marking points are uniformly arranged along the circumferential direction of the second rotor.
7. The two-rotor static misalignment measuring method according to claim 6, wherein in step four, the obtaining the static misalignment between the first rotor and the second rotor according to the predetermined distance L between the two displacement sensors and the measured values of the two displacement sensors comprises:
drawing a radar chart according to the positions of 12 marking points by taking the measured value of one displacement sensor at the first marking point as a reference, and determining the circle center O of the radar chart1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O1、O2And O3And if the first rotor and the second rotor are completely overlapped, the first rotor and the second rotor are completely centered.
8. The two-rotor static misalignment measuring method of claim 7, wherein in step four, the obtaining the static misalignment between the first rotor and the second rotor according to the predetermined distance L between the two displacement sensors and the measured values of the two displacement sensors comprises:
drawing a radar chart according to the positions of 12 marking points by taking the measured value of one displacement sensor at the first marking point as a reference, and determining the circle center O of the radar chart1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O2And O3Completely overlap to obtain O2、O3And O1Distance D of1The offset of the first rotor and the second rotor which are parallel under the static state is D1。
9. The two-rotor static misalignment measuring method of claim 8, wherein in step four, the obtaining the static misalignment between the first rotor and the second rotor according to the predetermined distance L between the two displacement sensors and the measured values of the two displacement sensors comprises:
with one of said displacement sensors at a first targetTaking the measured value of the mark point as a reference, drawing a radar map according to the positions of 12 mark points, and determining the center O of the radar map1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O2And O3Non-coincident with the line connecting the two and O1On the same center line, obtain O2And O3Distance D of2Then the static deflection angle θ of the first rotor and the second rotor is:
10. the two-rotor static misalignment measuring method of claim 9, wherein in step four, the obtaining the static misalignment between the first rotor and the second rotor according to the predetermined distance L between the two displacement sensors and the measured values of the two displacement sensors comprises:
drawing a radar chart according to the positions of 12 marking points by taking the measured value of one displacement sensor at the first marking point as a reference, and determining the circle center O of the radar chart1；
Respectively drawing a radar chart according to the measured values of the two displacement sensors, and determining the circle center O of the radar chart2And O3；
Combining the three radar maps if O2And O3Are not overlapped and the connection line of the two is connected with O1Not on the same centerline, obtaining O2And O3Distance D of2And O and1and O2And O3Perpendicular D to the line3The offset of the first rotor and the second rotor which are parallel under the static state is D3And the static deflection angle theta of the first rotor and the second rotor is as follows:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010368210.1A CN111486813A (en) | 2020-04-30 | 2020-04-30 | Device and method for measuring static misalignment of two rotors |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010368210.1A CN111486813A (en) | 2020-04-30 | 2020-04-30 | Device and method for measuring static misalignment of two rotors |
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| CN202010368210.1A Pending CN111486813A (en) | 2020-04-30 | 2020-04-30 | Device and method for measuring static misalignment of two rotors |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322906A (en) * | 2021-11-29 | 2022-04-12 | 广西防城港核电有限公司 | Measuring device suitable for shaft coupling centering |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0632250A1 (en) * | 1993-06-30 | 1995-01-04 | Simmonds Precision Products Inc. | Monitoring apparatus for rotating equipment dynamics |
| CN103196406A (en) * | 2012-01-06 | 2013-07-10 | 上海信慧电力科技有限公司 | Centering instrument measuring device used for generator opposite-wheel shafting |
| CN103712595A (en) * | 2013-12-13 | 2014-04-09 | 北京联合大学生物化学工程学院 | Coaxiality measuring device |
| CN203548164U (en) * | 2013-08-30 | 2014-04-16 | 三一汽车制造有限公司 | Coaxiality detecting system for pumping device |
| CN105571531A (en) * | 2016-01-30 | 2016-05-11 | 吉林大学 | Dynamic detecting device and adjusting method for misalignment of rotating machine |
| CN108801179A (en) * | 2018-06-27 | 2018-11-13 | 大连理工大学 | A kind of non-contact axis coaxality measuring mechanism and method at a distance |
| CN110579200A (en) * | 2019-09-19 | 2019-12-17 | 石家庄科林电气设备有限公司 | Method for measuring centering deviation of transmission shaft |
-
2020
- 2020-04-30 CN CN202010368210.1A patent/CN111486813A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0632250A1 (en) * | 1993-06-30 | 1995-01-04 | Simmonds Precision Products Inc. | Monitoring apparatus for rotating equipment dynamics |
| CN103196406A (en) * | 2012-01-06 | 2013-07-10 | 上海信慧电力科技有限公司 | Centering instrument measuring device used for generator opposite-wheel shafting |
| CN203548164U (en) * | 2013-08-30 | 2014-04-16 | 三一汽车制造有限公司 | Coaxiality detecting system for pumping device |
| CN103712595A (en) * | 2013-12-13 | 2014-04-09 | 北京联合大学生物化学工程学院 | Coaxiality measuring device |
| CN105571531A (en) * | 2016-01-30 | 2016-05-11 | 吉林大学 | Dynamic detecting device and adjusting method for misalignment of rotating machine |
| CN108801179A (en) * | 2018-06-27 | 2018-11-13 | 大连理工大学 | A kind of non-contact axis coaxality measuring mechanism and method at a distance |
| CN110579200A (en) * | 2019-09-19 | 2019-12-17 | 石家庄科林电气设备有限公司 | Method for measuring centering deviation of transmission shaft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114322906A (en) * | 2021-11-29 | 2022-04-12 | 广西防城港核电有限公司 | Measuring device suitable for shaft coupling centering |
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