CN103196406A - Centering instrument measuring device used for generator opposite-wheel shafting - Google Patents
Centering instrument measuring device used for generator opposite-wheel shafting Download PDFInfo
- Publication number
- CN103196406A CN103196406A CN 201210002499 CN201210002499A CN103196406A CN 103196406 A CN103196406 A CN 103196406A CN 201210002499 CN201210002499 CN 201210002499 CN 201210002499 A CN201210002499 A CN 201210002499A CN 103196406 A CN103196406 A CN 103196406A
- Authority
- CN
- China
- Prior art keywords
- wheel
- displacement transducer
- displacement
- device used
- centering instrument
- 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
Links
Images
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses a centering instrument measuring device used for a generator opposite-wheel shafting. The centering instrument measuring device used for the generator opposite-wheel shafting is characterized in that a measuring circumferential clamp is arranged on a first wheel, a first displacement sensor is installed on the measuring circumferential clamp through an L-shaped connecting part, the first displacement sensor is perpendicular to the axial direction of a second shaft, two plane reference clamps are symmetrically arranged on a second wheel, reference planes perpendicular to the axial direction of the second shaft are arranged on the plane reference clamps, the two reference planes are symmetrically arranged relative to the axis of the second shaft, two second displacement sensors are arranged on the first wheel, the two second displacement sensors and the two reference planes are correspondingly arranged, and the two second displacement sensors are installed parallel to the axial direction of a first shaft. The centering instrument measuring device used for the generator opposite-wheel shafting has the advantages that during measuring calculation, influences on measurement due to the error caused by zero offset quantity of the sensors and axial movement of the shafts during measurement can be eliminated, calculation accuracy is high, and therefore the integral centering process is rapid, convenient and high in accuracy.
Description
Technical field
The present invention relates to generator unit installing area, be specifically related to a kind of for the centering instrument measurement mechanism of generator to wheel shaft system.
Background technology
The quality that the center shafting installation is installed at the generator unit is one of key factor that guarantees unit safety operation, and axle system installs unreasonable, can cause each bearing load maldistribution.Press unit static state and load operation operating mode, the load of each bearing of reasonable distribution is the key that axle system installs, and is for this reason, when the installation of axle system and maintenance, particularly crucial to the centering problem of wheel shaft system.Generally be earlier through a large amount of hand computations in the prior art, determine an adjustment scheme, examination is transferred, is measured again and again then, makes to adjust the result and reach deviation allowable value to the wheel center gradually, thereby expends a large amount of time and manpower.How carrying out quickly and easily, centering is urgent problem during generator unit shaft system is installed always.
Summary of the invention
The object of the present invention is to provide and a kind ofly can accurately measure for the centering instrument measurement mechanism of generator to wheel shaft system, in order to improve accuracy of alignment.
To achieve these goals, technical scheme of the present invention is: a kind of for the centering instrument measurement mechanism of generator to wheel shaft system, described generator comprises two axles to wheel shaft system, be respectively first and second, the corresponding axle head of these two axles is respectively equipped with a wheel, being respectively the first round and second takes turns, it is characterized in that the first round is provided with the measurement circumferential clamp, first displacement transducer is installed on this measurement circumferential clamp by L shaped web member, this first displacement transducer perpendicular to second axially, second takes turns and is arranged with two datum plane anchor clamps, each datum plane anchor clamps is respectively equipped with one perpendicular to second axial reference field, described two relative second axis of reference field are symmetrical arranged, last two second displacement transducers of the first round, these two second displacement transducers and above-mentioned two corresponding settings of reference field, and be parallel to first axially installation.The first round also is provided with the wireless transmit transmitter that is connected with second displacement transducer with first displacement transducer.
The invention has the advantages that the zero shift amount that in measure calculating, can eliminate sensor and when measuring axle move axially the influence of error to measuring that causes, the computational accuracy height, therefore whole centering process is efficient and convenient, the degree of accuracy height.
Description of drawings
Fig. 1 a is the scheme of installation of first displacement transducer of one embodiment of the invention.
Fig. 1 b is the scheme of installation of second displacement transducer of one embodiment of the invention.
Fig. 2 is the calculating synoptic diagram of side-play amount a1 up and down.
Fig. 3 is the calculating synoptic diagram of left and right sides side-play amount a2.
Fig. 4 is the upper and lower opening amount b1 of both ends of the surface, the calculating synoptic diagram of b3.
Fig. 5 is the left and right sides opening amount b2 of both ends of the surface, the calculating synoptic diagram of b4.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As everyone knows, one group of skew to two axle centers of wheel has following 4 parameters to need to measure.The a1 of side-play amount up and down at diaxon center, left and right sides side-play amount a2.The upper and lower opening amount b1 of both ends of the surface, b3, left and right sides opening amount b2, b4.
In order to detect above-mentioned side-play amount, need be at above-mentioned one group first displacement transducer and second displacement transducer of measuring the end face aperture displacement that wheel is installed and measured the circumferential backlash amount.With the first displacement transducer A perpendicular to axial direction be fixed on generator to the wheel a wheel on, be used for measuring another circumferential backlash amount of taking turns, second displacement transducer is parallel to is axially fixed on the wheel of generator to wheel, be used for to measure another end face aperture displacement of taking turns.Usually need two second displacement transducer B1 and B2 are installed, these two displacement transducers are symmetrical arranged with respect to the axle center, and namely both centers are the axle center.
Shown in Fig. 1 a and Fig. 1 b, described one group is provided with two axles to wheel, is respectively first 1 and second 3, and the corresponding axle head of these two axles is respectively equipped with the first round 2 and second and takes turns 4, described displacement transducer was installed on the first round 2, took turns 4 side-play amount for measurement second.Wherein the first round 2 is provided with and measures circumferential clamp 5, the first displacement transducer A is installed on this measurement circumferential clamp 5 by L shaped web member 6, this first displacement transducer A perpendicular to second 3 axially, second takes turns and is arranged with two datum plane anchor clamps 8 and 10 on 4, each datum plane anchor clamps is respectively equipped with one perpendicular to second axial reference field 9 and 11, described two relative with 11 second 3 axis of reference field 9 are symmetrical arranged, two second displacement transducer B1 and B2 on the first round 2, these two second displacement transducers and above-mentioned two corresponding settings of reference field, and be parallel to first 1 and axially install.The described first displacement transducer A and the second displacement transducer B1 and B2 send detected circumferential backlash amount and end face aperture displacement to processing unit by wireless transmit transmitter 7 to carry out data and handles, and wherein processing unit is prior art, does not repeat them here.Adopt measurement circumferential clamp and datum plane anchor clamps to come subsidiary, make that measurement is convenient, and it is more accurate to measure the gained data.And by symmetry two second displacement transducers are installed, can eliminate the error that causes that moves axially of axle when measuring.
This is revolved three-sixth turn to wheel, respectively at 0 degree, 90 degree, 180 degree, 270 degree, the 360 degree above-mentioned circumferential backlash amount of position measurement and end face aperture displacements.The first displacement transducer A obtains circumferential backlash amount a_0, a_90, a_180, a_270, a_360; The second displacement transducer B1 obtains end face aperture displacement b1_0, b1_90, b1_180, b1_270, b1_360; The second displacement transducer B2 obtains end face aperture displacement b2_0, b2_90, b2_180, b2_270, b2_360.
As Fig. 2, the datum length of offset for measuring.A is lower deviation in fact, the measured value the when measured value when a_0 is 0 degree position, a_180 are 180 degree positions.Wherein: a_0=offset – a1, a_180=offset+a1; Can obtain: side-play amount a1=(a_180 – a_0)/2 up and down, if a1 0 item high a1 of expression L axial ratio H axle; If the absolute value of a1＜0 a high a1 of expression H axial ratio L axle.Certainly, Shi Ji positive and negative mounting means with sensor is relevant.
As Fig. 3, can obtain left and right sides side-play amount a2=(a_90 – a_270)/2, if a2〉0 item expression L axial ratio H axle a2 that takes back, upright towards generator, the absolute value of a2 is upright towards generator if a2＜0 an expression H axial ratio L axle takes over.
As Fig. 4, offset1 wherein, offset2 is the zero shift amount of two sensors.Axle moved axially when Drift was measurement.Each size has following relation: b1_0=offset1+b1; B2_180=offset2+b3; B2_0=offset2+b1 – drift; B1_180=offset1+b3 – drift.So, b3 – b1=-b1_0+b2_180+offset1-offset2; B3 – b1=b1_180 – b2_0 – offset 1+offset2.The influence that this shows drift is measured simultaneously by two sensors and has been eliminated.Thereby obtain: the difference b3 – b1 of upper and lower opening amount=(if (– of b1_180+b2_180) (b1_0+b2_0))/2 are b3-b1〉0 item be expressed as down and dehisce; If b3-b1＜0 item is expressed as and dehisces.
As Fig. 5, the algorithm same with the difference of upper and lower opening amount can obtain: the difference b4 – b2 of left and right sides opening amount=((– of b1_270+b2_270) (b1_90+b2_90))/2, if b4-b2〉0 item be expressed as the right side and dehisce, upright towards generator, if b4-b2＜0 item is expressed as a left side and dehisces, and is upright towards generator.
Effective for what guarantee to measure, should do following measurement validity check behind every rotation one-shot measurement.The measurement of the first displacement transducer A should be satisfied following relation: abs, and (a_360-a_0)＜sensor maximum error+rotor rotates maximum error of backlash; The measurement of the second displacement transducer B1 should be satisfied following relation: abs (b1_360-b1_0)＜sensor maximum error+rotor maximum axial drift; The measurement of the second displacement transducer B2 should be satisfied following relation: abs (b2_360-b2_0)＜sensor maximum error+rotor maximum axial drift.Abs(x) be ABS function.
Claims (2)
1. one kind is used for generator to the centering instrument measurement mechanism of wheel shaft system, described generator comprises two axles to wheel shaft system, be respectively first and second, the corresponding axle head of these two axles is respectively equipped with a wheel, being respectively the first round and second takes turns, it is characterized in that the first round is provided with the measurement circumferential clamp, first displacement transducer is installed on this measurement circumferential clamp by L shaped web member, this first displacement transducer perpendicular to second axially, second takes turns and is arranged with two datum plane anchor clamps, each datum plane anchor clamps is respectively equipped with one perpendicular to second axial reference field, described two relative second axis of reference field are symmetrical arranged, last two second displacement transducers of the first round, these two second displacement transducers and above-mentioned two corresponding settings of reference field, and be parallel to first axially installation.
2. centering instrument measurement mechanism as claimed in claim 1 is characterized in that the first round also is provided with the wireless transmit transmitter that is connected with second displacement transducer with first displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210002499 CN103196406A (en) | 2012-01-06 | 2012-01-06 | Centering instrument measuring device used for generator opposite-wheel shafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210002499 CN103196406A (en) | 2012-01-06 | 2012-01-06 | Centering instrument measuring device used for generator opposite-wheel shafting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103196406A true CN103196406A (en) | 2013-07-10 |
Family
ID=48719111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210002499 Pending CN103196406A (en) | 2012-01-06 | 2012-01-06 | Centering instrument measuring device used for generator opposite-wheel shafting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103196406A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048595A (en) * | 2014-06-27 | 2014-09-17 | 西安交通大学 | Angle misalignment fault quantitative detection system and method for rotating machine |
| CN105149933A (en) * | 2015-09-24 | 2015-12-16 | 中国北车集团大连机车车辆有限公司 | Alignment assembling method for diesel generating set |
| CN107747918A (en) * | 2017-09-05 | 2018-03-02 | 湛雅璇 | Error detecting apparatus in a kind of Suo Li conversions jack pair |
| CN110940261A (en) * | 2019-11-22 | 2020-03-31 | 润电能源科学技术有限公司 | System and method for measuring centering state of rotating body |
| CN111486813A (en) * | 2020-04-30 | 2020-08-04 | 中国航发沈阳发动机研究所 | Device and method for measuring static misalignment of two rotors |
| CN113432565A (en) * | 2021-07-26 | 2021-09-24 | 珠海格力电器股份有限公司 | Magnetic suspension bearing axial displacement detection device, method and system and control system thereof |
-
2012
- 2012-01-06 CN CN 201210002499 patent/CN103196406A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048595A (en) * | 2014-06-27 | 2014-09-17 | 西安交通大学 | Angle misalignment fault quantitative detection system and method for rotating machine |
| CN105149933A (en) * | 2015-09-24 | 2015-12-16 | 中国北车集团大连机车车辆有限公司 | Alignment assembling method for diesel generating set |
| CN107747918A (en) * | 2017-09-05 | 2018-03-02 | 湛雅璇 | Error detecting apparatus in a kind of Suo Li conversions jack pair |
| CN110940261A (en) * | 2019-11-22 | 2020-03-31 | 润电能源科学技术有限公司 | System and method for measuring centering state of rotating body |
| CN111486813A (en) * | 2020-04-30 | 2020-08-04 | 中国航发沈阳发动机研究所 | Device and method for measuring static misalignment of two rotors |
| CN113432565A (en) * | 2021-07-26 | 2021-09-24 | 珠海格力电器股份有限公司 | Magnetic suspension bearing axial displacement detection device, method and system and control system thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103196406A (en) | Centering instrument measuring device used for generator opposite-wheel shafting | |
| CN103196432A (en) | Alignment instrument measurement and adjustment method for generator coupled wheel shaft system | |
| CN101680741B (en) | System and method for measuring alignment errors of axles | |
| CN101886957A (en) | Torque measurement device and method | |
| WO2011055662A1 (en) | Axial deviation measurement method and angle detecting device with auto-correct function comprising axial deviation measurement function | |
| CN105044795A (en) | Method for reducing measurement error of rotating accelerometer gravity gradiometer by using fiber optic gyroscope | |
| CN102538837A (en) | Method, computer program product and rotary encoder for estimation of eccentric value | |
| KR101444663B1 (en) | Backlash and stiffness measuring apparatus in an actuator | |
| CN102997841B (en) | Rotary vector (RV) reducer back clearance measuring system | |
| CN104019929B (en) | Based on the Shaft Torque on-line testing method that current vortex relative displacement is measured | |
| CN102331236A (en) | On-line diameter measurement device for large-diameter solid of revolution | |
| CN103162602A (en) | Portable magnetic coupling centering tool gauge frame | |
| CN204831094U (en) | Measuring device for measuring distance and height difference between brake pedal and accelerator pedal | |
| CN105181195B (en) | Torque of rotating shaft and rotating speed measurement method | |
| CN203003096U (en) | Split-type roll gap measuring device of continuous casting machine | |
| CN100501307C (en) | Non-flange shafts centering device | |
| CN204963887U (en) | High -speed pivot sensor clamping device | |
| KR101329107B1 (en) | Ellipticity measuring apparatus and measuring method of pipe | |
| JP2013061224A (en) | Blade vibration measuring apparatus | |
| CN102156025B (en) | System calibration method of tire balancing machine | |
| CN201302438Y (en) | A special measuring gauge for simultaneously measuring mounting distance and offset distance of spiral bevel gear pair | |
| CN107228614A (en) | A kind of detection means and detection method at six-cylinder crankshaft phase angle | |
| CN203241030U (en) | Dynamic axis deformation measuring device used for rotary kiln | |
| CN206583368U (en) | Centrifugal pump couplings centering fixture | |
| CN101881800B (en) | Method for detecting electromagnetic interference based on electromagnetic positioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130710 |
|
| RJ01 | Rejection of invention patent application after publication |