JPH05256105A - Vertical and horizontal direction moving device for rotor - Google Patents
Vertical and horizontal direction moving device for rotorInfo
- Publication number
- JPH05256105A JPH05256105A JP5297392A JP5297392A JPH05256105A JP H05256105 A JPH05256105 A JP H05256105A JP 5297392 A JP5297392 A JP 5297392A JP 5297392 A JP5297392 A JP 5297392A JP H05256105 A JPH05256105 A JP H05256105A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- bearing
- support
- vertical
- flange
- 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.)
- Granted
Links
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ロータ、特に蒸気ター
ビンのロータを支持する軸受を点検する際、軸受を取出
すためにロータを上下方向に移動させ、さらタービン据
付時ロータが所定の軸心位置に来るように軸受を配設す
るためにロータを上下方向及び水平方向に移動させるロ
ータの上下及び水平方向移動装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotor, particularly a bearing for supporting a rotor of a steam turbine, which is moved up and down in order to take out the bearing when inspecting the bearing. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical and horizontal moving device for moving a rotor vertically and horizontally so as to arrange a bearing so as to come to a position.
【０００２】[0002]
【従来の技術】蒸気タービン等のロータが軸受で支持さ
れる構造として図５に示すものが知られている。図５に
おいてロータ１は他のロータ１１とそれぞれのカップリ
ング１ａと１１ａとで結合され、ロータ１は、軸頸２で
上半部軸受３と下半部軸受４とを図示しない締結手段に
より合わせてなる軸受５に支持されている。2. Description of the Related Art A structure shown in FIG. 5 is known as a structure in which a rotor of a steam turbine or the like is supported by bearings. In FIG. 5, the rotor 1 is connected to the other rotor 11 by the respective couplings 1a and 11a, and the rotor 1 is such that the shaft neck 2 connects the upper half bearing 3 and the lower half bearing 4 by fastening means (not shown). It is supported by a bearing 5.
【０００３】軸受５は箱状の軸受台６に設けられた軸受
支え７の球面座７ａに下半部軸受４の球面突出体４ａを
載せて軸受台６の軸受支え７に載置されている。なお８
は軸受５を押える軸受押え、１０は軸受５からの排油の
油切りである。軸受台カバー１２は箱状の軸受台６の開
口を覆って軸受台６と図示しないフランジ部で結合さ
れ、軸受箱を形成する。なお１３は油切りである。The bearing 5 is mounted on the bearing support 7 of the bearing base 6 by mounting the spherical protrusion 4a of the lower half bearing 4 on the spherical seat 7a of the bearing support 7 provided on the box-shaped bearing base 6. .. 8
Is a bearing retainer for pressing the bearing 5, and 10 is an oil drainer for draining oil from the bearing 5. The bearing stand cover 12 covers the opening of the box-shaped bearing stand 6 and is joined to the bearing stand 6 by a flange portion (not shown) to form a bearing box. Note that 13 is an oil drainer.
【０００４】このような構造により、ロータ１は軸受５
で支持されて回転するが、所定期間の運転後やタービン
異常時、運転を停止して軸受５の点検が行なわれる。次
にこの軸受の点検方法について説明する。軸受台カバー
１２を軸受台６から取外し、さらに軸受押え８を取除
き、上半部軸受３を締結手段をゆるめて下半部軸受４か
ら取外す。そして図６に示すように支持具１５を軸受台
６のフランジ６ａに取付ける。With such a structure, the rotor 1 has the bearing 5
Although it is supported and rotates by the bearing, the bearing 5 is inspected by stopping the operation after a predetermined period of operation or when the turbine is abnormal. Next, a method of inspecting this bearing will be described. The bearing base cover 12 is removed from the bearing base 6, the bearing retainer 8 is removed, and the upper half bearing 3 is removed from the lower half bearing 4 by loosening the fastening means. Then, as shown in FIG. 6, the support 15 is attached to the flange 6 a of the bearing base 6.
【０００５】ここで、支持具１５は逆Ｕ形のアーム１６
と、ロータ１のカップリング１ａの下半部を覆う半円状
のロータ支え１８と、ロータ支え１８の両側の開口端部
に螺合し、かつアーム１６を貫通し、ナット１９により
ロータ支え１８の高さを調整できるように設けられるス
タッド２０とから構成され、アーム１６の両側の開口端
部のフランジ１６ａはボルト２１により軸受台６のフラ
ンジ６ａに締付けられるようにしている。Here, the support 15 is an inverted U-shaped arm 16
And a semicircular rotor support 18 that covers the lower half of the coupling 1a of the rotor 1, and screw-engage with the open ends on both sides of the rotor support 18, penetrate the arm 16, and use a nut 19 to support the rotor support 18 And a stud 20 provided so that the height of the arm 16 can be adjusted. The flanges 16a at the open ends of the arms 16 are fastened to the flange 6a of the bearing base 6 by bolts 21.
【０００６】なお、ロータ支え１８の両側の開口端部と
アーム１６との間にはそれぞれロータ１の水平方向の位
置を調整できる調整ボルト２２がロータ支え１８に螺合
して取付けられるようにしている。このような支持具１
５を前述のように上半部軸受３を取外した後、ロータ１
のカップリング１ａの位置に対応する軸受台６のフラン
ジ６ａの位置に設置する。この際支持具１５のアーム１
６をその両側のフランジ１６ａで軸受台６のフランジ６
ａにボルト２１により固定する。次にロータ支え１８を
ロータ１のカップリング１ａの下半部を覆うように設置
し、アーム１６を貫通させたスタッド２０をロータ支え
１８の開口端部に螺合し、ロータ支え１８をスタッド２
０を介してスタッド２０に螺合するナット１９によりア
ーム１６に支持する。そしてナット１９の回転によりス
タッド２０を介してロータ支え１８を上昇させることに
より、ロータ支え１８はカップリング１ａに接触した
後、ロータ１を持上げて軸頸２と下半部軸受４との間に
隙間を生じさせる。この隙間により下半部軸受４は軸受
支え７の球面座７ａを軸頸２に沿わせて滑らせて取出す
ことができる。したがって上半部，下半部軸受３，４の
軸受メタルを点検することができる。Between the open ends on both sides of the rotor support 18 and the arms 16, adjustment bolts 22 for adjusting the horizontal position of the rotor 1 are respectively screwed and attached to the rotor support 18. There is. Such a support 1
5 after removing the upper half bearing 3 as described above, the rotor 1
It is installed at the position of the flange 6a of the bearing base 6 corresponding to the position of the coupling 1a. At this time, the arm 1 of the support 15
6 with the flanges 16a on both sides of the bearing 6
It is fixed to a by a bolt 21. Next, the rotor support 18 is installed so as to cover the lower half portion of the coupling 1a of the rotor 1, and the stud 20 penetrating the arm 16 is screwed into the open end of the rotor support 18 to attach the rotor support 18 to the stud 2.
It is supported on the arm 16 by means of a nut 19 which is screwed onto the stud 20 via 0. Then, the rotation of the nut 19 raises the rotor support 18 via the stud 20, so that the rotor support 18 comes into contact with the coupling 1a and then lifts the rotor 1 between the shaft neck 2 and the lower half bearing 4. Create a gap. Due to this gap, the lower half bearing 4 can be taken out by sliding the spherical seat 7a of the bearing support 7 along the shaft neck 2. Therefore, the bearing metal of the upper and lower half bearings 3 and 4 can be inspected.
【０００７】なお、軸受５を復旧するときには、下半部
軸受４を軸頸２と軸受支え７との間に挿入して設置し、
ナット１９を前記と逆向きに回転してロータ１を支持す
るロータ支え１８を下降させてロータ１の軸頸２を下半
部軸受４に載せる。そして支持具１５を取外して上半部
軸受３，軸受押え８，軸受台フランジ１２を取付けて復
旧を完了する。When the bearing 5 is restored, the lower half bearing 4 is inserted and installed between the shaft neck 2 and the bearing support 7,
The nut 19 is rotated in the opposite direction to lower the rotor support 18 for supporting the rotor 1 to mount the shaft neck 2 of the rotor 1 on the lower half bearing 4. Then, the support 15 is removed, the upper half bearing 3, the bearing retainer 8 and the bearing stand flange 12 are attached, and the restoration is completed.
【０００８】また、蒸気タービンの据付時、ロータ１を
所定の軸心位置に配設できるように軸受５の位置をきめ
る必要がある。この場合には調整ボルト２２を取付けた
支持具１５を前述のように軸受台６のフランジ６ａにボ
ルト２１により取付け、前記の手順によりロータ１の上
下方向の移動距離を調整し、さらに調整ボルト２２の回
転によりロータ１の水平方向の移動距離を調整する。Further, when the steam turbine is installed, it is necessary to determine the position of the bearing 5 so that the rotor 1 can be arranged at a predetermined axial center position. In this case, the support tool 15 to which the adjusting bolt 22 is attached is attached to the flange 6a of the bearing stand 6 by the bolt 21 as described above, and the moving distance of the rotor 1 in the vertical direction is adjusted by the above-described procedure. The rotation distance of the rotor 1 is adjusted by rotating.
【０００９】このような上下，水平方向の移動距離の調
整により、ロータ１を所定の軸心位置に来るようにし、
この状態で軸受台６に載置する下半部軸受４の位置を調
整して軸受５を設置する。By adjusting the moving distances in the vertical and horizontal directions as described above, the rotor 1 is brought to a predetermined axial center position,
In this state, the position of the lower half bearing 4 mounted on the bearing stand 6 is adjusted and the bearing 5 is installed.
【００１０】[0010]
【発明が解決しようとする課題】上記の従来技術ではロ
ータ１を支持する上半部，下半部軸受３，４からなる軸
受５を点検するため、下半部軸受４を軸受台６から取出
すとき、ロータを上下方向に移動させる支持具１５が必
要であり、さらにタービン据付時にはロータを水平方向
に移動させる調整ボルト２２も必要となる。In the above-mentioned prior art, the lower half bearing 4 is taken out from the bearing stand 6 in order to inspect the bearing 5 consisting of the upper half and lower half bearings 3 and 4 which support the rotor 1. At this time, the support tool 15 for moving the rotor in the vertical direction is required, and further, the adjusting bolt 22 for moving the rotor in the horizontal direction is also required when installing the turbine.
【００１１】これらの冶具は点検の都度又は据付時に保
管場所から天井クレーン等で運搬してロータ及び軸受台
にセットしているので、セットするのに時間がかかると
いう欠点がある。本発明の目的は、軸受の点検やタービ
ン据付時にロータを上下方向及び水平方向に移動させる
とき、これらの移動に必要な冶具を運搬することなく軸
受台にセットできるロータの上下及び水平方向移動装置
を提供することである。Each of these jigs is transported from the storage location by an overhead crane or the like and set on the rotor and the bearing stand at the time of inspection or at the time of installation, so that there is a drawback that it takes time to set. An object of the present invention is to provide a vertical and horizontal moving device for a rotor that can be set on a bearing stand without moving a jig necessary for moving the rotor when moving the rotor in the vertical and horizontal directions during inspection of a bearing or installation of a turbine. Is to provide.
【００１２】[0012]
【課題を解決するための手段】上記課題を解決するため
に、本発明によれば箱状の軸受台とこの軸受台の開口を
覆う軸受台カバーとをフランジ部で締結してなる軸受箱
の前記軸受台に設けられた軸受支えに載置され、上半部
軸受と下半部軸受とが合わされてなる軸受で支持される
ロータを、点検時軸受を取出すために持上げるロータの
上下方向移動装置において、ロータの下半部を囲む半円
状をなし、両側の開口端部を外方向に曲げてなる腕部を
有し、この腕部を軸受台のフランジに載せるロータ支え
と、このロータ支えの腕部を軸受台のフランジに締結す
る固定ボルトと、ロータ支えを上下方向に移動させ、そ
の移動距離を調整できる縦方向調整手段とを設けるもの
とする。In order to solve the above-mentioned problems, according to the present invention, a box-shaped bearing stand and a bearing stand cover covering an opening of the bearing stand are fastened together by a flange portion. Vertical movement of the rotor, which is mounted on a bearing support provided on the bearing stand and is supported by a bearing formed by combining an upper half bearing and a lower half bearing, for taking out the bearing for inspection. The device has a semi-circular shape surrounding the lower half of the rotor, has arm portions formed by bending open ends on both sides outward, and a rotor support for mounting the arm portions on a flange of a bearing base, and the rotor support. A fixing bolt for fastening the arm portion of the support to the flange of the bearing base and a vertical adjustment means for moving the rotor support in the vertical direction and adjusting the moving distance thereof are provided.
【００１３】また、箱状の軸受台と、この軸受台の開口
を覆う軸受台カバーとをフランジ部で締結してなる軸受
箱の前記軸受台に設けられた軸受支えに載置され、上半
部軸受と下半部軸受とが合わされてなる軸受で支持され
るべきロータを、据付時所定の軸心位置に設置するため
にロータを上下方向及び水平方向に移動させるロータの
上下及び水平方向移動装置において、ロータの下半部を
囲む半円状をなし、両側の開口端部を外方向に曲げてな
る腕部を有し、この腕部を軸受台のフランジに載せるロ
ータ支えと、このロータ支えの腕部を軸受台のフランジ
に締結する固定ボルトと、ロータ支えを上下方向に移動
させ、その移動距離を調整できる縦方向調整手段と、ロ
ータ支えを水平方向に移動させ、その移動距離を調整で
きる横方向調整手段とを設けるものとする。Further, a box-shaped bearing stand and a bearing stand cover for covering the opening of the bearing stand are fastened by a flange portion to a bearing support provided on the bearing stand, and the upper half thereof is mounted. Vertical and horizontal movement of the rotor, which moves the rotor vertically and horizontally to install it at a predetermined axial center position during installation. The device has a semi-circular shape surrounding the lower half of the rotor, has arm portions formed by bending open ends on both sides outward, and a rotor support for mounting the arm portions on a flange of a bearing base, and the rotor support. Fixing bolts that fasten the arm of the support to the flange of the bearing stand, vertical adjustment means that can move the rotor support vertically and adjust its travel distance, and move the rotor support horizontally to adjust the travel distance. Adjustable lateral adjustment hand It is assumed that the provision of the door.
【００１４】上記の縦方向調整手段は、軸受台のフラン
ジに設けられたボルト座と、このボルト座に、ロータ支
えの腕部に貫通して螺合し、その先端が接触する縦方向
調整ボルトとを備えるものとする。また横方向調整手段
は、軸受台のフランジに設けられたボルト座と、このボ
ルト座が隙間を有して挿入される孔と前記固定ボルトが
貫通する孔とを備え、ロータ支えの腕部と軸受台カバー
のフランジが重ならない軸受台のフランジ部との間に介
挿される間隔板と、軸受台に設けられた支持板に貫通し
て螺合し、その先端が間隔板の端面に接触して間隔板を
介してロータ支えを水平方向に移動させ、その移動距離
を調整できる横方向調整ボルトとを備えるものとする。The above-mentioned vertical adjusting means is a bolt seat provided on the flange of the bearing stand, and the bolt seat is screwed through the arm portion of the rotor support so that the tip thereof comes into contact with the bolt seat. Shall be provided. Further, the lateral direction adjusting means includes a bolt seat provided on the flange of the bearing stand, a hole into which the bolt seat is inserted with a gap, and a hole through which the fixing bolt penetrates, and an arm portion of the rotor support. The flange of the bearing stand cover is inserted between the spacer plate and the flange part of the bearing stand that does not overlap, and the support plate provided on the bearing stand penetrates and is screwed, and its tip contacts the end face of the spacer plate. And a lateral adjustment bolt capable of adjusting the moving distance by moving the rotor support horizontally through the spacing plate.
【００１５】[0015]
【作用】ロータ支えは、ロータの下半部を囲む半円状を
なし、両側の開口端部を外方向に曲げてなる腕部を有し
て構成される。このロータ支えを、その両側の腕部を軸
受が載置される軸受支えが設けられる軸受台のフランジ
に載せて設置する。そして縦方向調整手段、この手段と
してロータ支えの両側の腕部に貫通して螺合し、その先
端が軸受台のフランジに設けられたボルト座に接触する
縦方向調整ボルトを設け、この調整ボルトを左，右回転
することにより、ロータ支えは上下方向に移動すること
ができる。The rotor support has a semicircular shape surrounding the lower half of the rotor, and has arm portions formed by bending open ends on both sides outward. This rotor support is installed by mounting the arm portions on both sides thereof on the flange of the bearing stand on which the bearing support on which the bearing is mounted is provided. Then, a vertical adjustment means is provided, which is a vertical adjustment bolt that penetrates through the arm portions on both sides of the rotor support and is screwed together, and has its tip contacting a bolt seat provided on the flange of the bearing base. The rotor support can be moved in the vertical direction by rotating the rotor left and right.
【００１６】ここで、ロータ支えを上方に移動すること
により、ロータ支えは半円状の部分にロータを支持して
持上げることになる。したがって、点検時上半部軸受を
取外してロータ支えを持上げれば、ロータと下半部軸受
との間に隙間が生じる。このため、下半部軸受は容易に
軸受支え面を滑らせてロータに沿わせて取出すことがで
きる。この結果取出した上半部軸受と下半部軸受とは点
検が可能になる。Here, by moving the rotor support upward, the rotor support supports and lifts the rotor in a semicircular portion. Therefore, if the upper half bearing is removed and the rotor support is lifted during inspection, a gap is created between the rotor and the lower half bearing. Therefore, the lower half bearing can easily be taken out along the rotor by sliding the bearing support surface. As a result, the upper half bearing and the lower half bearing taken out can be inspected.
【００１７】次に復旧するときには、上記手順と逆の手
順で行なう。すなわち下半部軸受をロータと軸受支えと
の間に挿入して軸受支えに載置する。そして縦方向調整
ボルトを前記と逆方向に回転すればロータ支えはロータ
を支持しながら下方に移動し、ロータを下半部軸受に載
置する。そしてさらにロータ支えを下方に移動すること
により、ロータ支えとロータとはロータの回転時ロータ
がロータ支えに接触しない隙間を持たせることができ
る。この状態で固定ボルトによりロータ支えをその腕部
を介して軸受台のフランジに締結して固定することがで
きる。When the next restoration is performed, the procedure is reversed from the above procedure. That is, the lower half bearing is inserted between the rotor and the bearing support and placed on the bearing support. When the vertical adjustment bolt is rotated in the opposite direction, the rotor support moves downward while supporting the rotor, and the rotor is mounted on the lower half bearing. By further moving the rotor support downward, a gap can be provided between the rotor support and the rotor so that the rotor does not come into contact with the rotor support during rotation of the rotor. In this state, the rotor support can be fastened and fixed to the flange of the bearing base via the arm portion by the fixing bolt.
【００１８】したがって、この状態で上半部軸受，軸受
台カバーを取付けることにより、軸受台にロータの上下
方向移動装置を内蔵してロータの回転を行なうことがで
きる。また、据付時、ロータを所定の軸心位置に来るよ
うに軸受を軸受台に設置するときには、ロータ支えを前
記の方法で上下方向に移動させるとともに横方向調整手
段によりロータを支持するロータ支えを水平方向に移動
させ、ロータの所定の軸心位置でロータが軸受に支持さ
れるように下半部軸受をその上下，水平位置を調整して
軸受台に設置する。Therefore, by mounting the upper half bearing and the bearing base cover in this state, the rotor can be rotated by incorporating the rotor vertical moving device in the bearing base. Further, during installation, when the bearing is installed on the bearing base so that the rotor comes to a predetermined axial center position, the rotor support is moved vertically by the above method and the rotor support for supporting the rotor by the lateral adjustment means is installed. The lower half bearing is moved horizontally and the rotor is supported by the bearing at a predetermined axial center position.
【００１９】上記の横方向調整手段としてロータ支えの
腕部と軸受台カバーのフランジが重ならない軸受台のフ
ランジ部との間に介挿され、軸受台のフランジに設けら
れたボルト座が隙間を有して挿入される孔と前記固定ボ
ルトが貫通する孔とを有する間隔板と、この間隔板の端
面に接触し軸受台に設けた支持板に貫通して螺合する横
方向調整ボルトとを設け、この調整ボルトにより固定ボ
ルトを取外した間隔板を水平方向に移動させてロータを
支持するロータ支えを水平方向に移動させる。なお、間
隔板の水平移動はボルト座が挿入される孔の前記隙間に
より可能である。As the lateral adjustment means, the arm portion of the rotor support and the flange of the bearing stand cover are inserted between the flange portion of the bearing stand and the bolt seat provided on the flange of the bearing stand so as to form a gap. A spacing plate having a hole to be inserted therein and a hole through which the fixing bolt penetrates, and a lateral adjustment bolt that comes into contact with an end surface of the spacing plate and is screwed through a support plate provided on the bearing stand. The adjusting bolt is used to move the spacing plate from which the fixing bolt is removed in the horizontal direction to move the rotor support for supporting the rotor in the horizontal direction. The horizontal movement of the spacing plate is possible due to the above-mentioned clearance of the hole into which the bolt seat is inserted.
【００２０】このようにして下半部軸受を設置した後、
ロータを下半部軸受に載せ、上半部軸受を取付ける。な
お、ロータ支えは前述のようにロータの回転時ロータが
ロータ支えに接触しない隙間を持たせる位置まで縦方向
調整ボルトによりロータ支えを下げて固定ボルトにより
ロータ支えの腕部を間隔板を介して軸受台のフランジに
締結してロータ支えを固定する。そして上半部軸受，軸
受台フランジを取付けることにより据付は完了する。After installing the lower half bearing in this way,
Place the rotor on the lower half bearing and install the upper half bearing. As described above, the rotor support is lowered by the vertical adjustment bolts to the position where the rotor has a gap that does not contact the rotor support when the rotor is rotating, and the arm portions of the rotor support are fixed by the fixing bolts via the spacing plate. Fasten to the flange of the bearing base to fix the rotor support. The installation is completed by installing the upper half bearing and the bearing stand flange.
【００２１】[0021]
【実施例】以下図面に基づいて本発明の実施例について
説明する。図２は本発明の実施例によるロータの上下，
水平方向移動装置を備え、ロータを支持する軸受部の断
面図、図１は図２のＡ−Ａ断面図であり、左半分は運転
時の状態を示し、右半分はロータを上下，水平方向に移
動時の状態を示す。また図３は図１において軸受台カバ
ー１２を取除いて示すＢ矢視図である。なお図１ないし
図３において図５，図６の従来例と同一部品には同じ符
号を付し、その説明を省略する。Embodiments of the present invention will be described below with reference to the drawings. 2 is a top and bottom view of a rotor according to an embodiment of the present invention,
FIG. 1 is a cross-sectional view of a bearing portion that includes a horizontal direction moving device and supports a rotor, and FIG. 1 is a cross-sectional view taken along the line AA of FIG. 2. The left half shows a state during operation, and the right half shows the rotor vertically and horizontally. Shows the state when moving. FIG. 3 is a view as seen from the direction of arrow B in FIG. 1 with the bearing stand cover 12 removed. 1 to 3, the same parts as those in the conventional example shown in FIGS. 5 and 6 are designated by the same reference numerals, and the description thereof will be omitted.
【００２２】図１ないし図３において従来例と異なるの
は次記の通りである。ロータ支え２５はロータ１のカッ
プリング１ａの下半部を囲む半円状のハーフリング２６
と、ハーフリング２６の両側の開口端部を外方向に曲げ
てなる腕部２７とからなっている。ロータ支え２５の腕
部２７は軸受台カバー１２のフランジ１２ａが重ならな
い軸受台６のフランジ６ａ部に間隔板２８を介して載置
されている。1 to 3 are different from the conventional example as follows. The rotor support 25 is a semi-circular half ring 26 that surrounds the lower half of the coupling 1 a of the rotor 1.
And an arm portion 27 formed by bending the open end portions on both sides of the half ring 26 outward. The arm portion 27 of the rotor support 25 is placed on the flange 6a portion of the bearing base 6 where the flange 12a of the bearing base cover 12 does not overlap, via a spacing plate 28.
【００２３】間隔板２８は図３のＣ−Ｃ断面図である図
４に示すように軸受台６のフランジ６ａに設けられたボ
ルト座２９を隙間を有して挿入される孔３０と、固定ボ
ルト３１が貫通する孔３２とを有して形成されている。
ここで孔３０のボルト座２９に対する前記隙間は後述す
るようにロータ支え２５を水平方向に移動するに足る水
平方向の長さを有するものとする。As shown in FIG. 4, which is a sectional view taken along the line CC of FIG. 3, the spacing plate 28 is fixed with a hole 30 into which a bolt seat 29 provided on the flange 6a of the bearing base 6 is inserted with a gap. It has a hole 32 through which the bolt 31 penetrates.
Here, the gap of the hole 30 with respect to the bolt seat 29 has a horizontal length sufficient to move the rotor support 25 in the horizontal direction as described later.
【００２４】縦方向調整ボルト３５はロータ支え２５の
腕部２７に貫通して螺合し、その先端はボルト座２９に
接触している。固定ボルト３１は図４に示すようにロー
タ支え２５をその腕部２７にて間隔板２８の孔３２を通
って軸受台６のフランジ６ａに螺合して固定する。なお
カラー３６は縦方向調整ボルト３５に回り止めピン３７
が挿入されて取付けられ、固定ボルト３１の頭部の一部
を覆ってタービンの運転中固定ボルト３１が抜け出るの
を防止する。The vertical adjustment bolt 35 penetrates and is screwed into the arm portion 27 of the rotor support 25, and its tip is in contact with the bolt seat 29. As shown in FIG. 4, the fixing bolts 31 fix the rotor support 25 by screwing the rotor support 25 through the holes 32 of the spacing plate 28 to the flange 6a of the bearing base 6 by the arm portions 27 thereof. In addition, the collar 36 is attached to the vertical adjustment bolt 35 by the rotation stop pin 37.
Is inserted and attached to cover a part of the head of the fixing bolt 31 to prevent the fixing bolt 31 from coming off during operation of the turbine.
【００２５】横方向調整ボルト４０は軸受台６のフラン
ジ６ａの両側の側面に設けられた支持板４１に貫通して
螺合し、その先端は間隔板２８の端面に接触している。
このような構成により、タービンの運転時には、図１の
左半分に示すようにロータ支え２５はその腕部２７が間
隔板２８を介して軸受台６のフランジ６ａに図４に示す
ように固定ボルト３１により締付けられて固定され、ロ
ータ支え２５とロータ１のカップリング１ａとに隙間が
生じ、その最下端では隙間Ｓを有している。このためタ
ービンの運転時、ロータ１はロータ支え２５に接触せず
に安全に回転する。The lateral adjustment bolt 40 penetrates and is screwed into support plates 41 provided on both side surfaces of the flange 6a of the bearing stand 6, and its tip is in contact with the end surface of the spacing plate 28.
With such a configuration, when the turbine is in operation, as shown in the left half of FIG. 1, the arm portion 27 of the rotor support 25 is fixed to the flange 6a of the bearing base 6 via the spacing plate 28 as shown in FIG. The rotor support 25 and the coupling 1a of the rotor 1 have a gap between them, which is fixed by being tightened by 31, and has a gap S at the lowermost end thereof. Therefore, during operation of the turbine, the rotor 1 rotates safely without coming into contact with the rotor support 25.
【００２６】ところで、定期点検やタービン異常時には
タービンを停止して軸受の点検を行なう。この点検は下
記のようにして行なわれる。図１の右半分に示すように
軸受台カバー１２を取外し、次に軸受押え８及び上半部
軸受３を取外す。そして図４に示す回り止めピン３７を
抜いてカラー３６を取外し、次に固定ボルト３１を取外
してロータ支え２５をフリーにする。この状態で両側の
縦方向調整ボルト３５を回転すれば、その先端がボルト
座２９に接触しながら縦方向調整ボルト３５は回転し、
これに伴ってロータ支え２５は上昇する。そしてロータ
１のカップリング１ａがロータ支え２５のハーフリング
２６に接触すればロータ支え２５はロータ１を支持しな
がら上昇し、ロータ１の軸頸２と下半部軸受４との間に
隙間が生じる。By the way, the periodic inspection and when the turbine is abnormal, the turbine is stopped and the bearing is inspected. This inspection is performed as follows. As shown in the right half of FIG. 1, the bearing base cover 12 is removed, and then the bearing retainer 8 and the upper half bearing 3 are removed. Then, the detent pin 37 shown in FIG. 4 is removed to remove the collar 36, and then the fixing bolt 31 is removed to free the rotor support 25. In this state, if the vertical adjustment bolts 35 on both sides are rotated, the vertical adjustment bolts 35 rotate while their tips contact the bolt seat 29,
Along with this, the rotor support 25 moves up. When the coupling 1a of the rotor 1 comes into contact with the half ring 26 of the rotor support 25, the rotor support 25 rises while supporting the rotor 1, and a gap is formed between the shaft neck 2 of the rotor 1 and the lower half bearing 4. Occurs.
【００２７】この隙間が生じたら、その位置でロータ支
え２５の上昇を停止する。そして下半部軸受４を軸受支
え７の球面座７ａに軸頸２に沿わせて滑らせて取出す。
上記のように取出した上半部，下半部軸受３，４の軸受
メタルは、その損傷の有無を確認できる。軸受の点検が
終了した後の軸受の復旧は上記の手順と逆の手順で行な
われる。すなわち下半部軸受４を軸受支え７の球面座７
ａに滑らせて軸頸２の下部に挿入する。挿入したら両側
の縦方向調整ボルト３５を前記と逆方向に回転してロー
タ支え２５を下降させる。この結果ロータ１の軸頸２が
下半部軸受４に載せられる。そしてこの状態よりさらに
ロータ支え２５を下降させ、ロータ支え２５の腕部２７
を間隔板２８上に載せたら下降を停止する。この状態で
固定ボルト３１によりロータ支え２５を間隔板２８を介
して軸受台６のフランジ６ａに締結して固定し、カラー
３６を縦方向調整ボルト３５に取付けて固定ボルト３１
の抜き出しを防止する。When this gap is created, the lifting of the rotor support 25 is stopped at that position. Then, the lower half bearing 4 is slid on the spherical seat 7a of the bearing support 7 along the shaft neck 2 and taken out.
The presence or absence of damage can be confirmed in the bearing metal of the upper and lower half bearings 3 and 4 taken out as described above. After the bearing inspection is completed, the bearing is restored in the reverse order of the above procedure. That is, the lower half bearing 4 is attached to the spherical seat 7 of the bearing support 7.
Slide it to a and insert it in the lower part of the shaft neck 2. After the insertion, the vertical adjustment bolts 35 on both sides are rotated in the opposite direction to lower the rotor support 25. As a result, the shaft neck 2 of the rotor 1 is placed on the lower half bearing 4. Then, the rotor support 25 is further lowered from this state, and the arm portion 27 of the rotor support 25 is
When is placed on the spacing plate 28, the descent is stopped. In this state, the fixing bolt 31 fastens and fixes the rotor support 25 to the flange 6a of the bearing stand 6 via the spacing plate 28, and the collar 36 is attached to the vertical adjustment bolt 35.
To prevent the removal of.
【００２８】次に上半部軸受３，軸受押え８，軸受台カ
バー１２を取付けることにより、運転可能な状態にす
る。次にタービン据付時、ロータ１を所定の軸心位置に
来るように軸受５を設置するために、ロータ１を上下方
向及び水平方向に移動させてロータ１の位置を調整する
方法について説明する。Next, the upper half bearing 3, the bearing retainer 8, and the bearing stand cover 12 are attached to make them operable. Next, a method for adjusting the position of the rotor 1 by moving the rotor 1 in the vertical direction and the horizontal direction in order to install the bearing 5 so that the rotor 1 comes to a predetermined axial center position when the turbine is installed will be described.
【００２９】ロータ１の上下方向の位置調整は前述の縦
方向調整ボルト３５により行なうことができる。一方ロ
ータ１の水平方向の位置調整は図１に示すように支持板
４１に貫通して螺合する横方向調整ボルト４０の先端を
ロータ支え２５の腕部２７と軸受台６のフランジ６ａと
の間に介挿される間隔板２８の端面に接触させる。そし
て横方向調整ボルト４０を回転することにより間隔板２
８を押し、これに接触するロータ支え２５を水平方向に
移動させる。なおこの方向と逆方向に移動するときには
他方の側の支持板４１に螺合する横方向調整ボルト４０
の回転により行なうことができる。The vertical position adjustment of the rotor 1 can be performed by the vertical adjustment bolt 35 described above. On the other hand, as shown in FIG. 1, the horizontal position of the rotor 1 is adjusted by connecting the tip of the lateral adjustment bolt 40, which is screwed through the support plate 41, to the arm portion 27 of the rotor support 25 and the flange 6a of the bearing stand 6. It is brought into contact with the end face of the spacing plate 28 interposed therebetween. Then, by rotating the lateral adjustment bolt 40, the spacing plate 2
8 is pushed and the rotor support 25 which contacts this is moved horizontally. When moving in the opposite direction, the lateral adjustment bolt 40 screwed into the support plate 41 on the other side.
It can be performed by rotating.
【００３０】このようにしてロータ１を上下方向，水平
方向に移動させてロータ１の位置を調整することによ
り、ロータ１を所定の軸心位置に来るようにする。そし
てこの状態で下半部軸受４を軸受台６に設置すれば、ロ
ータ１は下半部軸受４に所定の軸心位置で支持されるこ
とになる。そしてロータ支え２５を前述のように下降さ
せてロータ１のカップリング１ａから離して固定ボルト
３１により固定し、上半部軸受３，軸受押え８，軸受台
カバー１２を取付けることにより、据付は完了する。By thus moving the rotor 1 in the vertical and horizontal directions to adjust the position of the rotor 1, the rotor 1 is brought to a predetermined axial center position. If the lower half bearing 4 is installed on the bearing stand 6 in this state, the rotor 1 is supported by the lower half bearing 4 at a predetermined axial center position. Then, the rotor support 25 is lowered as described above, separated from the coupling 1a of the rotor 1 and fixed by the fixing bolt 31, and the upper half bearing 3, the bearing retainer 8 and the bearing base cover 12 are attached, whereby the installation is completed. To do.
【００３１】[0031]
【発明の効果】以上の説明から明らかなように本発明に
よれば以上の構成により、軸受点検時ロータを上下する
上下方向移動装置及びタービン等の据付時ロータを所定
の軸心位置に来るようにロータを上下方向及び水平方向
に移動させる上下方向移動装置及び水平方向移動装置を
軸受台と軸受台カバーとからなる軸受箱に内蔵させたの
で、従来のように点検時や据付時に上下，水平方向移動
用の冶具を運搬することなく、直ちに上下，水平方向移
動装置が使用でき、かつこれらの保管場所が不要になる
という効果がある。As is apparent from the above description, according to the present invention, with the above configuration, the vertical movement device for moving the rotor up and down at the time of bearing inspection and the rotor for installation such as the turbine come to a predetermined axial center position. Since the vertical moving device for moving the rotor in the vertical and horizontal directions and the horizontal moving device are built in the bearing box consisting of the bearing base and the bearing base cover, it can be moved vertically and horizontally during inspection and installation as in the past. There is an effect that the vertical and horizontal moving devices can be used immediately without carrying a jig for moving the direction, and the storage space for these can be eliminated.
【図１】本発明の実施例によるロータの上下及び水平方
向移動装置を備えたロータ部の図２に示すＡ−Ａ断面を
示す図であり、左半分は運転時、右半分はロータ移動時
の状態を示す。FIG. 1 is a diagram showing a cross section taken along the line AA of FIG. 2 showing a rotor unit having vertical and horizontal moving devices for a rotor according to an embodiment of the present invention, wherein the left half is in operation and the right half is in rotor movement. Indicates the state of.
【図２】図１のロータの上下及び水平方向移動装置を備
えたロータを支持する軸受部の断面図2 is a cross-sectional view of a bearing portion that supports a rotor having vertical and horizontal moving devices for the rotor of FIG. 1;
【図３】図１の軸受台カバーを取外したときのＢ矢視図FIG. 3 is a view as seen from an arrow B when the bearing base cover of FIG. 1 is removed.
【図４】図３において軸受台カバーを取付けた状態のＣ
−Ｃ断面図[Fig. 4] C in Fig. 3 with a bearing stand cover attached
-C cross section
【図５】ロータを支持する軸受部の断面図FIG. 5 is a sectional view of a bearing portion that supports a rotor.
【図６】従来のロータを上下及び水平方向に移動させる
支持具を備えたロータ部の断面図FIG. 6 is a cross-sectional view of a rotor portion including a support tool that moves a conventional rotor vertically and horizontally.
１ ロータ ３ 上半部軸受 ４ 下半部軸受 ５ 軸受 ６ 軸受台 ６ａ フランジ ７ 軸受支え １２ 軸受台カバー １２ａ フランジ ２５ ロータ支え ２７ 腕部 ２８ 間隔板 ２９ ボルト座 ３１ 固定ボルト ３５ 縦方向調整ボルト ４０ 横方向調整ボルト ４１ 支持板 1 rotor 3 upper half bearing 4 lower half bearing 5 bearing 6 bearing stand 6a flange 7 bearing support 12 bearing stand cover 12a flange 25 rotor support 27 arm 28 spacing plate 29 bolt seat 31 fixing bolt 35 vertical adjustment bolt 40 horizontal Direction adjustment bolt 41 Support plate
Claims (4)
軸受台カバーとをフランジ部で締結してなる軸受箱の前
記軸受台に設けられた軸受支えに載置され、上半部軸受
と下半部軸受とが合わされてなる軸受で支持されるロー
タを、点検時軸受を取出すために持上げるロータの上下
方向移動装置において、ロータの下半部を囲む半円状を
なし、両側の開口端部を外方向に曲げてなる腕部を有
し、この腕部を軸受台のフランジに載せるロータ支え
と、このロータ支えの腕部を軸受台のフランジに締結す
る固定ボルトと、ロータ支えを上下方向に移動させ、そ
の移動距離を調整できる縦方向調整手段とを備えたこと
を特徴とするロータの上下方向移動装置。1. A box-shaped bearing stand and a bearing stand cover for covering an opening of the bearing stand are fastened to a bearing support provided on the bearing stand of a bearing box, the upper half of which is mounted on the bearing stand. In a vertical movement device for a rotor that lifts a rotor supported by a bearing formed by combining a lower bearing and a lower bearing, a semicircular shape surrounding the lower half of the rotor is formed. A rotor support having arm portions formed by bending the open end portions on both sides outward, and a fixing bolt for fastening the arm portions of the rotor support to the flange of the bearing stand; A vertical movement device for a rotor, comprising: a vertical adjustment means capable of moving the rotor support in the vertical direction and adjusting the movement distance thereof.
軸受台カバーとをフランジ部で締結してなる軸受箱の前
記軸受台に設けられた軸受支えに載置され、上半部軸受
と下半部軸受とが合わされてなる軸受で支持されるべき
軸受を、据付時所定の軸心位置に設置するために上下方
向及び水平方向に移動させるロータの上下及び水平方向
移動装置において、ロータの下半部を囲む半円状をな
し、両側の開口端部を外方向に曲げてなる腕部を有し、
この腕部を軸受台のフランジに載せるロータ支えと、こ
のロータ支えの腕部を軸受台のフランジに締結する固定
ボルトと、ロータ支えを上下方向に移動させ、その移動
距離を調整できる縦方向調整手段と、ロータ支えを水平
方向に移動させ、その移動距離を調整できる横方向調整
手段とを備えたことを特徴とするロータの上下及び水平
方向移動装置。2. A box-shaped bearing stand and a bearing stand cover for covering an opening of the bearing stand are fastened together by a flange portion on a bearing support provided on the bearing stand, and the upper half thereof is mounted. In a vertical and horizontal moving device of a rotor for moving a bearing to be supported by a bearing including a partial bearing and a lower half bearing in a vertical direction and a horizontal direction in order to install the bearing at a predetermined axial center position during installation. , Has a semicircular shape that surrounds the lower half of the rotor, and has arms that are formed by bending the open ends on both sides outward,
A rotor support that mounts this arm on the flange of the bearing stand, a fixing bolt that fastens the arm part of this rotor support to the flange of the bearing stand, and a vertical adjustment that allows the rotor support to move up and down and adjust its travel distance. A vertical and horizontal moving device for a rotor, which is provided with means and horizontal adjusting means for moving the rotor support in the horizontal direction and adjusting the moving distance thereof.
向調整手段は、軸受台のフランジに設けられたボルト座
と、このボルト座に、ロータ支えの腕部に貫通して螺合
し、その先端が接触する縦方向調整ボルトとを備えたこ
とを特徴とするロータの上下方向移動装置。3. The vertical adjustment means according to claim 1 or 2, wherein the vertical adjustment means is a bolt seat provided on a flange of the bearing stand, and the bolt seat is screwed through the arm part of the rotor support. A vertical movement device for a rotor, comprising: a vertical adjustment bolt whose tip contacts.
手段は、軸受台のフランジに設けられたボルト座と、こ
のボルト座が隙間を有して挿入される孔と前記固定ボル
トが貫通する孔とを備え、ロータ支えの腕部と軸受台カ
バーのフランジが重ならない軸受台のフランジ部との間
に介挿される間隔板と、軸受台に取付けられた支持板に
貫通して螺合し、その先端が間隔板の端面に接触して間
隔板を介してロータ支えを水平方向に移動させ、その移
動距離を調整できる横方向調整ボルトとを備えたことを
特徴とするロータの上下及び水平方向移動装置。4. The lateral adjusting means according to claim 2, wherein the lateral direction adjusting means includes a bolt seat provided on a flange of the bearing stand, a hole into which the bolt seat is inserted with a gap, and the fixing bolt. And a hole that is inserted between the arm part of the rotor support and the flange part of the bearing base where the flange of the bearing base cover does not overlap, and the support plate attached to the bearing base and screwed through. The top and bottom of the rotor, and a horizontal adjustment bolt capable of adjusting the moving distance of the rotor support by moving the rotor support in the horizontal direction through the spacing plate with its tip contacting the end face of the spacing plate. Horizontal movement device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4052973A JP2985481B2 (en) | 1992-03-12 | 1992-03-12 | Vertical and horizontal moving device for rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4052973A JP2985481B2 (en) | 1992-03-12 | 1992-03-12 | Vertical and horizontal moving device for rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05256105A true JPH05256105A (en) | 1993-10-05 |
| JP2985481B2 JP2985481B2 (en) | 1999-11-29 |
Family
ID=12929842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4052973A Expired - Lifetime JP2985481B2 (en) | 1992-03-12 | 1992-03-12 | Vertical and horizontal moving device for rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2985481B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100581435B1 (en) * | 2004-12-24 | 2006-05-17 | 두산중공업 주식회사 | An apparatus for controlling center position of lathe |
| KR100920506B1 (en) * | 2008-04-08 | 2009-10-08 | (주)대동피아이 | A turbin bearing turning tool |
| KR101136831B1 (en) * | 2009-07-31 | 2012-04-19 | 한전케이피에스 주식회사 | Turning device for turning a heavy bearing of the Turbine Generator |
| US9790066B2 (en) | 2013-06-12 | 2017-10-17 | Mitsubishi Hitachi Power Systems, Ltd. | Rotating shaft lifting jig and rotating shaft lifting method |
-
1992
- 1992-03-12 JP JP4052973A patent/JP2985481B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100581435B1 (en) * | 2004-12-24 | 2006-05-17 | 두산중공업 주식회사 | An apparatus for controlling center position of lathe |
| KR100920506B1 (en) * | 2008-04-08 | 2009-10-08 | (주)대동피아이 | A turbin bearing turning tool |
| KR101136831B1 (en) * | 2009-07-31 | 2012-04-19 | 한전케이피에스 주식회사 | Turning device for turning a heavy bearing of the Turbine Generator |
| US9790066B2 (en) | 2013-06-12 | 2017-10-17 | Mitsubishi Hitachi Power Systems, Ltd. | Rotating shaft lifting jig and rotating shaft lifting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2985481B2 (en) | 1999-11-29 |
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