JPH07270159A - Inclination measuring apparatus for vertical rotating shaft - Google Patents
Inclination measuring apparatus for vertical rotating shaftInfo
- Publication number
- JPH07270159A JPH07270159A JP5908194A JP5908194A JPH07270159A JP H07270159 A JPH07270159 A JP H07270159A JP 5908194 A JP5908194 A JP 5908194A JP 5908194 A JP5908194 A JP 5908194A JP H07270159 A JPH07270159 A JP H07270159A
- Authority
- JP
- Japan
- Prior art keywords
- level
- rotating shaft
- vertical
- mounting base
- inclination
- 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
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、立型回転電機等の据
付に際して行われる立型回転軸中心の鉛直線に対するず
れ、すなわち立型回転軸中心の傾きを計測する用具に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for measuring the deviation of the center of a vertical rotating shaft from the vertical line, that is, the inclination of the center of the vertical rotating shaft, which is performed when installing a vertical rotating electric machine or the like.
【０００２】[0002]
【従来の技術】立型回転電機、例えば水車発電機の回転
軸は運転中の振動等を防止するために、正確に回転軸の
中心を鉛直線と一致させて据え付ける必要がある。その
傾きの許容値は、例えば高さ１ｍについて０．０２ｍｍ
程度である。このように小さな回転軸の傾きを計測する
手段としてレーザー光を用いて行うものがあるが、発電
所の建設現場等で用いることは事実上不可能である。従
来、発電所の建設現場等では以下に述べるような方法で
回転軸中心の傾きが計測されていた。図５は例えば電気
共同研究第３７巻第６号に示された水車発電所機器据付
検査基準に記載されたシャフトアライメント測定図をも
とにした立型回転軸傾き計測方法を説明するための斜視
図である。図において、１は立型回転電機の回転軸、２
は回転軸１の表面から適当な間隔をもたせ、かつ回転軸
１の周囲に９０度ずつほゞ等間隔で４箇所の上部空間に
回転軸との相対位置が変わらないように上端を固定さ
れ、その下端に適当な重さをもつ重り３が釣り下げられ
たピアノ線で、立型回転電機据付の基準となる鉛直線を
実現している。図示しないが、重り３を容器に収容され
た適当な粘度をもつ油の中に浸し揺れを減衰させること
が行われる。もちろん、重り３は容器４に直接触れない
ようにしておく。なお、ピアノ線の設置位置に対してＸ
方向、Ｙ方向を図のように定めておく。2. Description of the Related Art A rotating shaft of a vertical rotating electric machine, such as a water turbine generator, must be installed with its center accurately aligned with the vertical line in order to prevent vibration during operation. The allowable value of the inclination is, for example, 0.02 mm for a height of 1 m.
It is a degree. As a means for measuring such a small rotation axis inclination, there is a method using laser light, but it is practically impossible to use it at a construction site of a power plant or the like. Conventionally, the inclination of the center of the rotation axis has been measured at the construction site of a power plant by the following method. FIG. 5 is a perspective view for explaining a vertical rotation axis inclination measuring method based on, for example, the shaft alignment measurement diagram described in the turbine power plant equipment installation inspection standard shown in Electric Joint Research Vol. 37, No. 6. It is a figure. In the figure, 1 is a rotary shaft of a vertical rotating electric machine, 2
Has an appropriate distance from the surface of the rotary shaft 1 and has its upper end fixed in four upper spaces at equal intervals of 90 degrees around the rotary shaft 1 so that the relative position to the rotary shaft does not change. At the lower end, a weight 3 having an appropriate weight is hung down to realize a vertical line that serves as a reference for installing the vertical rotating electric machine. Although not shown, the weight 3 is dipped in oil having an appropriate viscosity contained in a container to damp the shaking. Of course, the weight 3 should not touch the container 4 directly. In addition, X for the installation position of the piano wire
The direction and the Y direction are defined as shown in the figure.
【０００３】次に回転軸中心の傾きの計測方法について
説明する。まず図５において適当な間隔Ｈをもって回転
軸の直径が等しい２箇所の計測点Ａ、Ｂを設定する。間
隔Ｈは大きいほど高い計測精度が得られるため、例えば
３ｍ程度の距離が設定される。次に、各計測点で回転軸
１の表面とピアノ線２との間隔をインサイドマイクロメ
ーターで計測する。こうして得られた寸法ＡX1、ＡX2、
ＡY1、ＡY2、ＢX1、ＢX2、ＢY1、ＢY2から回転軸の傾き
をＸ、Ｙ両方向についてそれぞれ求める。例えば、図５
において、Ｈ＝３ｍ、ＡX1＝１４０ｍｍ、ＡX2＝１２６
ｍｍ、ＡY1＝１６０ｍｍ、ＡY2＝１１０ｍｍ、ＢX1＝１
２０ｍｍ、ＢX2＝１５０ｍｍ、ＢY1＝１８８ｍｍ、ＢY2
＝８６ｍｍが得られたとすれば、この各計測値から得ら
れる傾きの平均をとって、回転軸１にＸ方向には７．３
３ｍｍ／ｍ、Ｙ方向には８．６７ｍｍ／ｍの傾きがある
と判断する。この傾きの値をもとにして、すでに述べた
ように、回転軸の傾きが高さ１ｍについて０．０２ｍｍ
程度ないしはそれ以下になるまで、繰返し修正と計測が
行われる。Next, a method of measuring the inclination of the rotation axis center will be described. First, in FIG. 5, two measurement points A and B having the same diameter of the rotating shaft are set at appropriate intervals H. The larger the interval H is, the higher the measurement accuracy is. Therefore, for example, a distance of about 3 m is set. Next, at each measurement point, the distance between the surface of the rotary shaft 1 and the piano wire 2 is measured with an inside micrometer. Thus obtained dimensions A X1 , A X2 ,
From A Y1 , A Y2 , B X1 , B X2 , B Y1 , and B Y2 , the inclination of the rotation axis is obtained in both the X and Y directions. For example, in FIG.
At H = 3 m, A X1 = 140 mm, A X2 = 126
mm, A Y1 = 160 mm, A Y2 = 110 mm, B X1 = 1
20 mm, B X2 = 150 mm, B Y1 = 188 mm, B Y2
= 86 mm is obtained, the inclinations obtained from the respective measured values are averaged to obtain 7.3 in the X direction on the rotation axis 1.
It is determined that there is an inclination of 3 mm / m and an inclination of 8.67 mm / m in the Y direction. Based on the value of this inclination, as described above, the inclination of the rotation axis is 0.02 mm for a height of 1 m.
Iterative corrections and measurements are made to a degree or less.
【０００４】[0004]
【発明が解決しようとする課題】立型回転軸中心の傾き
を修正するにあたって、従来の方法では、ピアノ線の固
定点を回転軸の上部空間に設置することが必須で、かつ
計測も上下に大きな間隔をもつ２点で行う必要があり、
準備作業・計測作業ともに時間を要し、かつ各作業に転
落などの危険が伴うという問題点があった。また、立型
回転軸の傾きについて自動計測・自動解析を行うことは
実質的に不可能であり、計測に熟練を要する上、計測デ
ータ・解析データの信頼性が低くなりがちであるという
問題があった。In the conventional method for correcting the inclination of the vertical axis of rotation, it is essential to install the fixed point of the piano wire in the upper space of the axis of rotation, and the measurement can be performed vertically. You have to do it at two points with a large spacing,
There was a problem that both preparation work and measurement work required time, and each work involved a risk of falling. In addition, it is practically impossible to automatically measure and analyze the inclination of the vertical rotation axis, which requires skill in measurement, and the reliability of measurement data and analysis data tends to be low. there were.
【０００５】この発明は、上記のような問題を解決する
ためになされたものであり、短時間の作業で簡単にかつ
高い計測精度が得られ、立軸回転電機等の回転軸の傾き
を計測することのできる計測装置を提供しようとするも
のである。The present invention has been made in order to solve the above-mentioned problems, can easily and highly accurately obtain measurement accuracy in a short time, and measures the inclination of a rotary shaft of a vertical axis rotating electric machine or the like. It is intended to provide a measuring device that can do this.
【０００６】[0006]
【課題を解決するための手段】水準器取付台を磁石で立
型回転軸に吸着させ、この磁石の立型回転軸への吸着面
と直交する面に水準器をおいて立型回転軸の傾きを計測
する。[Means for Solving the Problems] A level mount is attracted to a vertical rotary shaft by a magnet, and a level is placed on a surface orthogonal to the attracting surface of this magnet to the vertical rotary shaft. Measure the tilt.
【０００７】[0007]
【作用】水準器取付台が立型回転軸の中心線と直交する
平面を形成し、この平面の水平面とのずれを水準器によ
って計測することにより立型回転軸の傾きを計測する。The level mounting base forms a plane orthogonal to the center line of the vertical rotation axis, and the inclination of the vertical rotation axis is measured by measuring the deviation of this plane from the horizontal plane by the level.
【０００８】[0008]
実施例１．以下、この発明の実施例１を図に基づいて説
明する。図１はこの発明の計測装置の斜視図、図２はこ
の発明の計測装置による立型回転軸傾き計測方法を説明
するための斜視図である。図において、４は水準器、５
は水準器４を回転軸に取り付けるための水準器取付台、
６は水準器４を載置した水準器取付台５を立型回転軸に
吸着させるための２つの磁石であり、その一端は水準器
取付台５に固着され、他端の回転軸への吸着部分にはＶ
字型の溝が設けられ、回転軸１に安定して取り付けるこ
とができるようになされている。水準器取付台５には水
準器４の取付部５1 が設けられており、取付部５1 の水
準器４を載置する面は２つの磁石６の下面６1 を結ぶ平
面と正確に直角に形成されている。Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a measuring device of the present invention, and FIG. 2 is a perspective view for explaining a vertical rotation axis inclination measuring method by the measuring device of the present invention. In the figure, 4 is a level, 5
Is a level mount for mounting the level 4 on the rotary shaft,
Reference numeral 6 denotes two magnets for adsorbing the level mount 5 on which the level 4 is mounted to the vertical rotation shaft, one end of which is fixed to the level mount 5 and the other end of which is attached to the rotary shaft. V in part
A V-shaped groove is provided so that the rotary shaft 1 can be stably attached. The level mountings 5 and mounting portion 5 1 of the level 4 is provided, a surface for placing a level 4 of the mounting portion 5 1 plane exactly perpendicular connecting the lower surface 6 1 of two magnets 6 Is formed in.
【０００９】このようになされた計測装置を、図２に示
すように回転軸表面の周囲を４等分する点の隣合う２箇
所もしくは４箇所全部に取付ければ、水準器４によって
容易に立型回転軸の傾きを計測することができる。立型
回転軸の傾きが大きい場合は粗調整用の水準器を用い、
傾きが小さくなれば精密水準器にとりかえればよい。傾
きの計測は点Ｘ1 、Ｘ2 ではＸ方向について、点Ｙ1 、
Ｙ2 ではＹ方向についてのみ行う。その理由は立型回転
軸の中心線と水準器取付台５の中心線とが正確に平行に
取り付けられる保証が得られないことによる。例えば水
準器４として気泡式のものを使用する場合、水準器取付
台５と水準器４の気泡管は図示のような方向でのみ計測
するべきである。２軸方向の傾きの計測値が得られる電
気式精密水準器等を使用する場合は、気泡式水準器で計
測する場合と同一方向の計測データのみを採用する。計
測は同時に上記した２箇所もしくは４箇所で行うことも
可能であるが、水準器取付台５および磁石６の寸法精度
や水準器４の機差による計測誤差、さらには回転軸の形
状誤差等に起因する計測誤差を除くために、同一の水準
器と計測装置を用いて２箇所もしくは４箇所で複数回行
い、計測値の平均値を用いるか、あるいは再現性を確認
してから計測することが望ましい。If the measuring device thus constructed is attached to two or all four points adjacent to the point that divides the circumference of the surface of the rotary shaft into four equal parts, as shown in FIG. The inclination of the mold rotation axis can be measured. If the vertical axis of rotation is large, use a level for coarse adjustment,
If the inclination becomes smaller, the precision level can be replaced. Inclination is measured at points X 1 and X 2 in the X direction at points Y 1 and
For Y 2 , only the Y direction is performed. The reason is that it cannot be guaranteed that the center line of the vertical rotation shaft and the center line of the level mount 5 are mounted in parallel with each other. For example, when using a bubble type as the level 4, the level mount 5 and the bubble tube of the level 4 should be measured only in the direction as shown. When using an electric precision level, etc. that can obtain the measured value of the inclination in the two axis directions, use only the measurement data in the same direction as when measuring with a bubble type level. It is possible to perform the measurement at the above-mentioned two or four points at the same time. In order to eliminate the measurement error caused by the measurement, it is possible to use the same level and measuring device multiple times at 2 or 4 points and use the average of the measured values, or measure after confirming the reproducibility. desirable.
【００１０】計測装置の取付位置は回転軸の高さ方向に
計測装置の高さと同程度の長さをもつ円柱部であれば任
意の位置でよく、従来の方法のように上下方向に長い円
柱部を要しない。また計測装置の取付は立型回転軸の高
さ方向の一点で行えばよく、また取付が磁石６の吸着に
よって行われるため取付のための補助的手段を要しな
い。水準器４として電気式精密水準器を用いれば、計測
データを自動的にデータ処理装置に取り込むことも可能
なため、計測データ・解析データの信頼性が大きく向上
する。その構成イメージを図３に示す。The mounting position of the measuring device may be any position as long as it is a cylindrical portion having a length approximately equal to the height of the measuring device in the height direction of the rotating shaft. As in the conventional method, the cylindrical position is long in the vertical direction. No part needed. Further, the measuring device may be mounted at one point in the height direction of the vertical rotation shaft, and since the mounting is performed by attracting the magnet 6, no auxiliary means for mounting is required. If an electric precision level is used as the level 4, it is possible to automatically load the measurement data into the data processing device, so that the reliability of the measurement data / analysis data is greatly improved. The configuration image is shown in FIG.
【００１１】実施例２．以上の説明では、水準器取付台
５はＴ字型一体構造のものとしたが、取扱いにより形状
精度が劣化することもあるため、図４に示すように、水
準器取付台を磁石６と固着される第１の取付台７1 と水
準器４を載置する第２の取付台７2 とから構成し、第１
の取付台７1 と第２の取付台７2 とを固定ネジ８と３個
の調整ネジ９によって連結し、相互の位置関係を調整で
きるようにしておき、傾きの計測にあたって精度の校正
を行えば、計測データの精度維持・向上をはかることが
できる。もちろん第１の取付台７1 を平板状にして第２
の取付台７2 をＬ字状にすることも可能である。また、
２つの磁石６の水準器取付台への固着については、一方
は定位置に固着し、他方は水準器取付台に対してスライ
ド可能にし調整ネジ１０によって固定位置を調整できる
ように構成すれば、立型回転軸への取付精度をより向上
できる。Embodiment 2. In the above description, the level mount 5 has a T-shaped integrated structure, but since the shape accuracy may deteriorate due to handling, the level mount is fixed to the magnet 6 as shown in FIG. The first mounting base 7 1 and the second mounting base 7 2 on which the electronic level 4 is mounted are provided.
The mounting base 7 1 and the second mounting base 7 2 are connected by the fixing screw 8 and the three adjusting screws 9 so that the mutual positional relationship can be adjusted, and the accuracy is calibrated when measuring the inclination. For example, it is possible to maintain and improve the accuracy of measurement data. Of course, the first mounting base 7 1 is made flat and the second
It is also possible to make the mounting base 7 2 of L shape. Also,
Regarding the fixation of the two magnets 6 to the spirit level mount, if one is fixed in a fixed position and the other is slidable with respect to the spirit level mount and the fixing position can be adjusted by the adjusting screw 10, The accuracy of attachment to the vertical rotation shaft can be further improved.
【００１２】[0012]
【発明の効果】以上のように、この発明によれば、立型
回転軸据付の基準となる鉛直線を実現するためのピアノ
線などの準備をする必要がなく、さらに計測にあたって
立型回転軸に対し上下に移動する必要がなくなり、計測
データが精度高くかつ容易に得られ、電気式精密水準器
を用いれば、計測データを演算装置へ取り込むことも可
能となるため、立型回転軸中心の傾きの計測作業を大幅
に簡素化できる。なお、水準器取付台を磁石取付部と水
準器載置部を別体とし、相互の位置関係を調整できるよ
うに連結しておけば、計測データの精度維持・向上をは
かることができる。As described above, according to the present invention, it is not necessary to prepare a piano wire or the like for realizing a vertical line that serves as a reference for installation of a vertical rotary shaft, and the vertical rotary shaft is required for measurement. On the other hand, since it is not necessary to move up and down, the measurement data can be obtained accurately and easily, and if an electric precision level is used, the measurement data can also be taken into the arithmetic unit. The tilt measurement work can be greatly simplified. It should be noted that if the level mounting base is provided separately from the magnet mounting part and the level mounting part and is connected so that the mutual positional relationship can be adjusted, the accuracy of the measurement data can be maintained and improved.
【図１】この発明の第１の実施例による立型回転軸傾き
計測装置の斜視図である。FIG. 1 is a perspective view of a vertical rotation axis inclination measuring device according to a first embodiment of the present invention.
【図２】この発明の計測装置による立型回転軸傾き計測
方法を説明するための斜視図である。FIG. 2 is a perspective view for explaining a vertical rotation axis inclination measuring method by the measuring device of the present invention.
【図３】この発明の計測装置による立型回転軸傾き計測
に電気式精密水準器を用いデータ処理装置に計測データ
を取り込むことようにした構成例である。FIG. 3 is an example of a configuration in which an electric precision level is used for vertical tilt axis tilt measurement by the measuring device of the present invention, and measurement data is loaded into a data processing device.
【図４】この発明の第２の実施例による計測装置の斜視
図である。FIG. 4 is a perspective view of a measuring device according to a second embodiment of the present invention.
【図５】従来の立型回転軸傾き計測方法を説明するため
の斜視図である。FIG. 5 is a perspective view for explaining a conventional vertical rotation axis inclination measuring method.
１ 立型回転電機の回転軸 ２ 立型回転電機据付の基準となる鉛直線を実現してい
るピアノ線 ３ 重り ４ 水準器 ５ 水準器取付台 ６ 磁石1 Rotation axis of vertical rotating electric machine 2 Piano wire that realizes the vertical line that serves as the standard for installation of vertical rotating electric machine 3 Weight 4 Level 5 5 Level mount 6 Magnet
Claims (2)
石に固着され前記磁石の立型回転軸への吸着面と直交す
る水準器載置面を有する取付台とを備えたことを特徴と
する立型回転軸傾き計測装置。1. A magnet for adsorbing to a vertical rotating shaft, and a mounting base fixed to the magnet and having a level mounting surface orthogonal to an attracting surface of the magnet on the vertical rotating shaft. Vertical rotation axis tilt measuring device.
の取付台と前記水準器載置面を有する第２の取付台とか
らなり、前記第１の取付台と前記第２の取付台とが調整
機構により連結され、前記第１の取付台と前記第２の取
付台の位置関係が調整可能になされていることを特徴と
する請求項１記載の立型回転軸傾き計測装置。2. The first mount, wherein the mount is fixed to the magnet.
And a second mounting base having the level mounting surface, the first mounting base and the second mounting base are connected by an adjusting mechanism, and the first mounting base and the second mounting base are connected to each other. The vertical rotation axis inclination measuring device according to claim 1, wherein the positional relationship of the second mount is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5908194A JPH07270159A (en) | 1994-03-29 | 1994-03-29 | Inclination measuring apparatus for vertical rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5908194A JPH07270159A (en) | 1994-03-29 | 1994-03-29 | Inclination measuring apparatus for vertical rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07270159A true JPH07270159A (en) | 1995-10-20 |
Family
ID=13103048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5908194A Pending JPH07270159A (en) | 1994-03-29 | 1994-03-29 | Inclination measuring apparatus for vertical rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07270159A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100483839B1 (en) * | 2004-10-26 | 2005-04-20 | (주)기하동문기술사건축사사무소 | Verticality measurement system of vertical construction for appartment |
| JP2013072830A (en) * | 2011-09-29 | 2013-04-22 | Sekisui Chem Co Ltd | Bend pipe measurement jig |
| JP2014016314A (en) * | 2012-07-11 | 2014-01-30 | Nippon Telegraph & Telephone East Corp | Electric pole inclination measuring device and fixture for the same |
| CN105509712A (en) * | 2015-11-13 | 2016-04-20 | 上海华测导航技术股份有限公司 | Tilt test device and method |
| CN110182302A (en) * | 2019-04-28 | 2019-08-30 | 沪东中华造船(集团)有限公司 | A kind of ship goes straight up to the positioning tool and preparation method thereof of machine aided drop instruction lamp seat |
| WO2022118393A1 (en) * | 2020-12-02 | 2022-06-09 | 株式会社Fuji | Leveling structure for machine tool |
-
1994
- 1994-03-29 JP JP5908194A patent/JPH07270159A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100483839B1 (en) * | 2004-10-26 | 2005-04-20 | (주)기하동문기술사건축사사무소 | Verticality measurement system of vertical construction for appartment |
| JP2013072830A (en) * | 2011-09-29 | 2013-04-22 | Sekisui Chem Co Ltd | Bend pipe measurement jig |
| JP2014016314A (en) * | 2012-07-11 | 2014-01-30 | Nippon Telegraph & Telephone East Corp | Electric pole inclination measuring device and fixture for the same |
| CN105509712A (en) * | 2015-11-13 | 2016-04-20 | 上海华测导航技术股份有限公司 | Tilt test device and method |
| CN105509712B (en) * | 2015-11-13 | 2018-04-17 | 上海华测导航技术股份有限公司 | A kind of inclining test device and method |
| CN110182302A (en) * | 2019-04-28 | 2019-08-30 | 沪东中华造船(集团)有限公司 | A kind of ship goes straight up to the positioning tool and preparation method thereof of machine aided drop instruction lamp seat |
| WO2022118393A1 (en) * | 2020-12-02 | 2022-06-09 | 株式会社Fuji | Leveling structure for machine tool |
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