JP2012161212A - Method of pulling out rotor of horizontal shaft type power generator and method of inserting the rotor - Google Patents

Method of pulling out rotor of horizontal shaft type power generator and method of inserting the rotor Download PDF

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JP2012161212A
JP2012161212A JP2011021121A JP2011021121A JP2012161212A JP 2012161212 A JP2012161212 A JP 2012161212A JP 2011021121 A JP2011021121 A JP 2011021121A JP 2011021121 A JP2011021121 A JP 2011021121A JP 2012161212 A JP2012161212 A JP 2012161212A
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rotor
stator
floor plate
shaft
horizontal axis
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Inventor
Yuya Nagata
祐也 永田
Hironobu Kawamura
浩信 河村
Hiroyuki Ikeda
博之 池田
Nariyuki Tsurukawa
斉之 鶴川
Susumu Fujimura
享 藤村
Hideki Makino
秀樹 槇野
Makoto Watanabe
誠 渡邉
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Chugoku Electric Power Co Inc
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Chugoku Electric Power Co Inc
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Priority to JP2011021121A priority Critical patent/JP2012161212A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a method of inserting and pulling out a rotor of a horizontal shaft type power generator capable of efficiently and safely performing insertion work and pull-out work of the rotor conducted during maintenance and inspection and the like of the horizontal shaft type power generator, and reducing cost needed for the maintenance and inspection.SOLUTION: A method of pulling out the rotor of a horizontal shaft type power generator includes the steps of: temporarily receiving a rotor 52 on the inner peripheral surface of a stator 53; projecting and disposing a floor plate 1 made of a steel plate whose length is at least twice or more of the total length of the rotor 52 from an end face 53a of the stator 53 so as to exceed the total length of the rotor 52 into a gap 59 formed by hoisting the rotor 52 by a ceiling crane 55 and supporting a part of the floor plate 1 projected from the stator 53 by a floor plate support member 2; supporting shaft parts 52a and 52b of the rotor 52 by shoes 57 and 57 disposed on the upper face of the floor plate 1 as support members so that a body trunk part 52c should not come into contact with the floor plate 1; and pulling the rotor 52 out of the stator 53.

Description

本発明は、横軸型発電機の保守点検の際に行われる回転子の着脱方法に係り、特に、作業効率を高めることが可能な横軸型発電機の回転子引抜方法と回転子挿入方法に関する。   The present invention relates to a rotor attaching / detaching method performed at the time of maintenance and inspection of a horizontal axis generator, and more particularly, a rotor pulling method and a rotor inserting method of a horizontal axis generator capable of improving work efficiency. About.

火力発電所等で用いられる大型の横軸型発電機では、通常、固定子と回転子が別々に製造される。そのため、組立工程において、固定子に回転子を挿入させる作業が発生する。また、固定子や回転子等の経年劣化による故障やそれに伴う事故を防ぐため、横軸型発電機では固定子から回転子を引き抜いて、定期的に内部の状態が点検される。   In a large horizontal axis generator used in a thermal power plant or the like, a stator and a rotor are usually manufactured separately. Therefore, in the assembling process, an operation for inserting the rotor into the stator occurs. Also, in order to prevent failure due to aging of the stator and rotor and accidents associated therewith, in the horizontal axis generator, the rotor is pulled out of the stator and the internal state is periodically checked.

ここで、横軸型発電機において固定子から回転子を引き抜く従来の方法について図３乃至図６を用いて簡単に説明する。
図３乃至図５は横軸型発電機において固定子から回転子を引き抜く従来の方法を示した模式図である。また、図６は横軸型発電機において固定子から回転子を引き抜く従来の手順を示したフローチャートである。なお、図３乃至図５では、固定子のみを断面図として表示している。
一般に、横軸型発電機５１は発電所等の建屋内の床上に設置されており、図３（ａ）に示すように円柱状の回転子５２と、回転子５２が内部に挿入される円筒状の固定子５３を備えている。また、回転子５２は、一方の側に図示しないカップリング等を介して蒸気タービンなどの駆動機器が連結されており、これらの機器の反対側へ移動させることで固定子５３から分離可能な構造となっている。なお、固定子５３の内径と回転子５２の外径との差が小さいほど発電効率が高くなることから、固定子５３と回転子５２との間には、例えば、約１０ｃｍ程度の空隙が設けられている。以下、回転子５２を固定子５３から引き抜く手順について、図６を参照しながら説明する。 Here, a conventional method of pulling out the rotor from the stator in the horizontal axis generator will be briefly described with reference to FIGS.
3 to 5 are schematic views showing a conventional method of pulling out the rotor from the stator in the horizontal shaft type generator. FIG. 6 is a flowchart showing a conventional procedure for pulling out the rotor from the stator in the horizontal axis generator. 3 to 5, only the stator is shown as a cross-sectional view.
Generally, the horizontal axis generator 51 is installed on the floor of a building such as a power plant, and as shown in FIG. 3A, a columnar rotor 52 and a cylinder into which the rotor 52 is inserted. The stator 53 is provided. The rotor 52 is connected to a driving device such as a steam turbine on one side via a coupling or the like (not shown), and can be separated from the stator 53 by moving to the opposite side of these devices. It has become. Since the power generation efficiency increases as the difference between the inner diameter of the stator 53 and the outer diameter of the rotor 52 decreases, for example, a gap of about 10 cm is provided between the stator 53 and the rotor 52. It has been. Hereinafter, a procedure for pulling out the rotor 52 from the stator 53 will be described with reference to FIG.

図６に示すように、まず、ステップＳ２０において、回転子５２に連結されたカップリング（図示せず）等を外し、回転子５２を固定子５３の内周面で仮受けする（仮受け工程）。その後、回転子５２の両端に設けられた軸部５２ａ，５２ｂに天井クレーン５５のワイヤ５４，５４をそれぞれ掛回し、回転子５２と固定子５３の間の空隙５９が形成されるように天井クレーン５５で軸部５２ａ，５２ｂを吊り上げる（図３（ａ））。
次に、ステップＳ２１において、空隙５９に敷板５６を敷設し、敷板５６の上面に軸部支持部材としてシュー５７，５７を設置する。そして、天井クレーン５５を操作して回転子５２を降下させ、軸部５２ａ，５２ｂをシュー５７，５７で支持する（図３（ｂ））。なお、敷板５６は回転子５２の外周面に沿って側面視円弧状に形成された鋼板からなる。また、シュー５７は、側面視して上面が回転子５２の軸部５２ａ，５２ｂの外周面に沿う円弧状をなし、下面が敷板５６の上面に沿う円弧状をなしており、上面で回転子５２を支持した状態のまま敷板５６上を滑動可能な構造となっている。そして、敷板５６の上面には、シュー５７の滑動性を高めるため、パラフィン等の潤滑材が塗布されている。
ステップＳ２２では、回転子５２の軸部５２ａに対し、天井クレーン５５のワイヤ５４を掛回した後、天井クレーン５５を操作して軸部５２ａを吊り上げ、シュー５７を取り除く（図３（ｃ））。そして、ステップＳ２３において、天井クレーン５５を矢印Ｘで示すように固定子５３の軸方向へ移動させつつ、建屋の壁等に一端が固定され，他端が軸部５２ａに取り付けられたチェーンブロック（図示せず）を用いて回転子５２を矢印Ｘの向きに引っ張る。その結果、回転子５２は固定子５３の内部から引き抜かれる（図３（ｄ））。 As shown in FIG. 6, first, in step S20, a coupling (not shown) connected to the rotor 52 is removed, and the rotor 52 is temporarily received by the inner peripheral surface of the stator 53 (temporary receiving step). ). Thereafter, the wires 54 and 54 of the overhead crane 55 are hung around the shaft portions 52a and 52b provided at both ends of the rotor 52, respectively, so that a gap 59 between the rotor 52 and the stator 53 is formed. The shaft portions 52a and 52b are lifted at 55 (FIG. 3A).
Next, in step S <b> 21, a laying plate 56 is laid in the gap 59, and shoes 57, 57 are installed as shaft support members on the upper surface of the laying plate 56. Then, the overhead crane 55 is operated to lower the rotor 52, and the shaft portions 52a and 52b are supported by the shoes 57 and 57 (FIG. 3B). The floor plate 56 is made of a steel plate formed in an arc shape in a side view along the outer peripheral surface of the rotor 52. In addition, the shoe 57 has an arc shape along the outer peripheral surface of the shaft portions 52a and 52b of the rotor 52 in a side view, and the bottom surface has an arc shape along the upper surface of the floor plate 56. The structure is such that the floor plate 56 can be slid while the 52 is supported. Then, a lubricant such as paraffin is applied to the upper surface of the floor plate 56 in order to improve the sliding property of the shoe 57.
In step S22, after the wire 54 of the overhead crane 55 is hung on the shaft 52a of the rotor 52, the overhead crane 55 is operated to lift the shaft 52a and remove the shoe 57 (FIG. 3C). . Then, in step S23, a chain block in which one end is fixed to the wall of the building and the other end is attached to the shaft portion 52a while moving the overhead crane 55 in the axial direction of the stator 53 as indicated by an arrow X ( The rotor 52 is pulled in the direction of the arrow X using a not shown). As a result, the rotor 52 is pulled out from the inside of the stator 53 (FIG. 3D).

ステップＳ２４では、建屋の床に設置された鋼鉄製の支持ブロック５８の上に回転子５２を仮置きし、軸部５２ａから天井クレーン５５のワイヤ５４を外す（図４（ａ））。なお、支持ブロック５８は、回転子５２を支持するのに十分な剛性を有しており、側面視して上面が回転子５２の胴体部５２ｃの外周面に沿って円弧状に形成されている。
次に、ステップＳ２５において、回転子５２の胴体部５２ｃに天井クレーン５５のワイヤ５４を掛回す（図４（ｂ））。そして、胴体部５２ｃから支持ブロック５８を外した後、ステップＳ２６において、前述のチェーンブロック（図示せず）を再び軸部５２ａに取り付けて、回転子５２を固定子５３の軸方向（図４（ｂ）の矢印Ｘで示す方向）へ引っ張りながら、天井クレーン５５も同じ方向へ移動させる。これにより、回転子５２が固定子５３の内部から引き抜かれる（図４（ｃ））。さらに、ステップＳ２７で、支持ブロック５８の上に回転子５２を仮置きした後、ステップＳ２５において胴体部５２ｃに掛回された天井クレーン５５のワイヤ５４を外す（図４（ｄ））。 In step S24, the rotor 52 is temporarily placed on a steel support block 58 installed on the floor of the building, and the wire 54 of the overhead crane 55 is removed from the shaft portion 52a (FIG. 4A). The support block 58 has sufficient rigidity to support the rotor 52, and the upper surface is formed in an arc shape along the outer peripheral surface of the body portion 52 c of the rotor 52 in a side view. .
Next, in step S25, the wire 54 of the overhead crane 55 is hung on the body 52c of the rotor 52 (FIG. 4B). Then, after removing the support block 58 from the body portion 52c, in step S26, the above-described chain block (not shown) is attached to the shaft portion 52a again, and the rotor 52 is moved in the axial direction of the stator 53 (FIG. While pulling in the direction indicated by the arrow X in b), the overhead crane 55 is also moved in the same direction. Thereby, the rotor 52 is pulled out from the inside of the stator 53 (FIG. 4C). Further, after temporarily placing the rotor 52 on the support block 58 in step S27, the wire 54 of the overhead crane 55 hung on the body portion 52c in step S25 is removed (FIG. 4D).

ステップＳ２８では、胴体部５２ｃの長さ方向の略中央部に天井クレーン５５のワイヤ５４を掛回し、回転子５２の胴体部５２ｃを吊持する（図５（ａ））。さらに、胴体部５２ｃから支持ブロック５８を外すとともに、軸部５２ｂからシュー５７を取り除いた後、ステップＳ２９において、前述のチェーンブロック（図示せず）を再び軸部５２ａに取り付けて、回転子５２を固定子５３の軸方向（図５（ａ）の矢印Ｘで示す方向）へ引っ張りながら、同時に天井クレーン５５も同じ方向へ移動させる。その結果、回転子５２が固定子５３の内部から完全に引き抜かれる（図５（ｂ））。そして、ステップＳ３０では、図５（ｂ）に矢印Ｙで示すように、天井クレーン５５を操作して回転子５２を吊り上げる。その後、回転子５２を天井クレーン５５によって点検作業用に予め確保されたスペース（図示せず）へ搬送する。   In step S28, the wire 54 of the overhead crane 55 is hung on a substantially central portion in the length direction of the body portion 52c, and the body portion 52c of the rotor 52 is suspended (FIG. 5A). Further, after removing the support block 58 from the body portion 52c and removing the shoe 57 from the shaft portion 52b, the chain block (not shown) is attached to the shaft portion 52a again in step S29, and the rotor 52 is moved. While pulling in the axial direction of the stator 53 (the direction indicated by the arrow X in FIG. 5A), the overhead crane 55 is simultaneously moved in the same direction. As a result, the rotor 52 is completely pulled out from the inside of the stator 53 (FIG. 5B). In step S30, as indicated by an arrow Y in FIG. 5B, the overhead crane 55 is operated to lift the rotor 52. Thereafter, the rotor 52 is conveyed by the overhead crane 55 to a space (not shown) reserved in advance for inspection work.

以上説明したように、従来の方法においては、天井クレーン５５で鉛直方向に吊り上げた状態を保ったまま、回転子５２が水平方向に引き抜かれるため、回転子５２に対して天井クレーン５５のワイヤ５４の位置を調整する、いわゆる吊り換え作業を何度も行わなければならず、回転子５２を固定子５３から短時間で効率よく引き抜くことができないという課題があった。また、吊られた状態の回転子５２と固定子５３の間に作業員が挟まれたり、回転子５２と固定子５３の接触に伴って機器が損傷したりするおそれがあった。なお、回転子５２を固定子５３に挿入する作業は、固定子５３から回転子５２を引き抜く作業と逆の手順によって行われるため、上述の課題は回転子５２を固定子５３へ挿入する際にも同様に発生する。
このような課題に対処するため、近年、回転子の挿入作業と抜出作業を効率よく行う方法について盛んに研究がなされており、それに関して、既に幾つかの発明や考案が開示されている。 As described above, in the conventional method, the rotor 52 is pulled out in the horizontal direction while maintaining the state in which the overhead crane 55 is lifted in the vertical direction. Therefore, there is a problem that the so-called suspension change operation for adjusting the position of the rotor 52 must be performed many times, and the rotor 52 cannot be efficiently pulled out from the stator 53 in a short time. In addition, there is a risk that an operator may be caught between the suspended rotor 52 and the stator 53, or the equipment may be damaged due to the contact between the rotor 52 and the stator 53. In addition, since the operation | work which inserts the rotor 52 in the stator 53 is performed by the reverse procedure to the operation | work which pulls out the rotor 52 from the stator 53, the above-mentioned subject is when inserting the rotor 52 in the stator 53. Will occur in the same way.
In order to deal with such problems, in recent years, active research has been conducted on methods for efficiently inserting and extracting rotors, and several inventions and devices have already been disclosed.

例えば、特許文献１には、「発電機又は電動機の定期点検方法及び装置」という名称で、ガスタービン及び蒸気タービンが前後に連結された発電機等において、固定子及び回転子の点検をガスタービンの分解点検と同時に並行して行うことが可能な方法及び装置に関する発明が開示されている。
特許文献１に開示された発明は、蒸気タービンの上方に仮設作業床を構築し、門形クレーンからなるリフトアップ装置を用いてリフトアップした発電機から回転子を仮設作業床上へ抜き出して点検作業を行うものである。
このような方法によれば、固定子及び回転子の点検とガスタービンの分解点検を同時に行うことができるため、プラント全体の定期点検の工程を簡素化し、短縮化することができる。 For example, Patent Document 1 discloses that a gas turbine and a steam turbine are connected to the front and rear of a gas turbine and a steam turbine, and the stator and rotor are inspected by a gas turbine. An invention relating to a method and an apparatus that can be performed in parallel with an overhaul of the apparatus is disclosed.
In the invention disclosed in Patent Document 1, a temporary work floor is constructed above a steam turbine, and a rotor is extracted from the generator lifted up using a lift-up device composed of a portal crane to the temporary work floor for inspection work. Is to do.
According to such a method, since the inspection of the stator and the rotor and the overhaul of the gas turbine can be performed at the same time, the periodic inspection process for the entire plant can be simplified and shortened.

特許文献２には、「横軸型発電機のロータ引抜方法及び挿入方法」という名称で、熟練者でなくとも、ロータ、ステータ等の部品を損傷させずに、短時間で引き抜いたり、挿入したりすることができる方法に関する発明が開示されている。
特許文献２に開示された発明は、シリンダのロッドを伸長させた状態でロッドの先端にロータの軸の一端を接続した後、ロッドを短縮させることによりロータを引き出すことを特徴とする。
このような方法によれば、ロータの軸方向への移動を短時間で効率よく行うことができる。また、取扱い操作が容易であるため、熟練者でなくとも安全かつ的確にロータの引抜作業や挿入作業を行うことができる。 In Patent Document 2, the name “rotor extraction method and insertion method of a horizontal axis generator” is used, and even a non-expert can extract or insert in a short time without damaging components such as the rotor and stator. An invention relating to a method that can be used is disclosed.
The invention disclosed in Patent Document 2 is characterized in that after the rod of the cylinder is extended, one end of the shaft of the rotor is connected to the tip of the rod and then the rotor is pulled out by shortening the rod.
According to such a method, the movement of the rotor in the axial direction can be efficiently performed in a short time. Moreover, since the handling operation is easy, even if it is not an expert, the rotor extraction | drawer operation | work and insertion operation | work can be performed safely and accurately.

また、特許文献３には、「回転機のロータ抜き取り、挿入装置およびその方法」という名称で、回転機の巻線を傷つけずに、ロータの抜き取り作業と挿入作業を短時間に効率よく行うことができる装置とその方法に関する発明が開示されている。
特許文献３に開示された回転機のロータ抜き取り・挿入装置は、ロータ用台車とステータ用台車を利用して、ロータをステータから水平に抜き取り、又はロータをステータに挿入する構造となっている。
このような構造によれば、ロータの抜き取り作業と挿入作業を迅速かつ正確に実施することが可能である。これにより、回転機の点検作業の効率が高まる。また、クレーンをほとんど使用しないため、周囲で行われる他の作業への影響が少ない。 Patent Document 3 discloses that the rotor extraction and insertion work of the rotor can be efficiently performed in a short time without damaging the winding of the rotor under the name of “rotor extraction and insertion device and method thereof”. An invention relating to an apparatus and a method for the same is disclosed.
The rotor extraction / insertion device for a rotating machine disclosed in Patent Document 3 has a structure in which a rotor is horizontally extracted from a stator or a rotor is inserted into a stator using a rotor carriage and a stator carriage.
According to such a structure, it is possible to quickly and accurately carry out the rotor extracting operation and the inserting operation. Thereby, the efficiency of the inspection work of the rotating machine is increased. Moreover, since the crane is hardly used, there is little influence on other work performed around.

特開２００４−７２８９１号公報JP 2004-72891 A 特開２０００−３２７１４号公報JP 2000-32714 A 特開平１１−２２５４６０号公報Japanese Patent Laid-Open No. 11-225460

上述の従来技術である特許文献１に開示された発明においては、固定子や回転子の点検作業とガスタービンの分解作業を同時に行うことができるものの、仮設作業床の設置や撤去に時間やコストがかかるという課題があった。   In the invention disclosed in Patent Document 1 which is the above-described prior art, although the inspection work of the stator and the rotor and the disassembly work of the gas turbine can be performed at the same time, it takes time and cost to install and remove the temporary work floor. There was a problem that it took.

また、特許文献２に開示された発明においては、ロータの一端に接続されるロッドと、そのロッドを伸長させるシリンダを製造し、設置しなければならず、点検作業のコストが高くなるという課題があった。   Moreover, in the invention disclosed in Patent Document 2, a rod connected to one end of the rotor and a cylinder for extending the rod must be manufactured and installed, which raises the problem of increasing the cost of inspection work. there were.

さらに、特許文献３に開示された発明においては、ロータ用台車とステータ用台車以外にもロータ吊り装置用レールと、台車用レールと、固定側ロータ吊り装置を必要とするため、設備費用が嵩み、回転機の保守点検に要する費用が高くなるという課題があった。   Furthermore, in the invention disclosed in Patent Document 3, since the rotor suspension rail, the carriage rail, and the fixed rotor suspension device are required in addition to the rotor carriage and the stator carriage, the equipment cost increases. However, there is a problem that the cost required for the maintenance and inspection of the rotating machine becomes high.

本発明はかかる従来の事情に対処してなされたものであって、横軸型発電機の保守点検の際に行われる回転子の挿入作業と引抜作業を効率よく安全に行うことができるとともに、保守点検に要する費用の削減を図ることが可能な横軸型発電機の回転子挿抜方法を提供することを目的とする。   The present invention has been made in response to such a conventional situation, and can efficiently and safely perform rotor insertion work and pull-out work performed at the time of maintenance and inspection of the horizontal axis generator, It is an object of the present invention to provide a rotor insertion / extraction method for a horizontal axis generator capable of reducing the cost required for maintenance and inspection.

上記目的を達成するため、請求項１記載の発明である横軸型発電機の回転子引抜方法は、胴体部の両端に軸部が設けられた回転子と，この回転子が内部に設置される固定子とを備える横軸型発電機において、軸部に連結されたカップリングを外して回転子を固定子から引き抜き可能とした後，回転子を固定子の内周面で仮受けする工程と、回転子の両端の軸部を持ち上げて固定子との間に空隙を形成し，回転子の全長の少なくとも２倍の長さを有する敷板を固定子の端面から回転子の全長を超えるように突出させて空隙に設置する工程と、回転子の胴体部が敷板に接触しないように，敷板上に複数の軸部支持部材を設置して回転子の両端の軸部をそれぞれ支持する工程と、回転子を固定子から敷板が突出する側へ，軸部支持部材を摺動させて水平方向に引き抜く工程と、を備えたことを特徴とするものである。
このような横軸型発電機の回転子引抜方法においては、回転子を固定子から引き抜く際に、回転子の水平状態を維持するために天井クレーン等を用いる必要がない。従って、回転子の水平移動に伴って天井クレーンのワイヤの位置を調整する、いわゆる吊り換え作業が発生しない。また、回転子を天井ワイヤ等で吊持しないため、揺動する回転子と固定子の間に作業員が挟まれて怪我をしたり、回転子が固定子に衝突して破損したりするおそれがない。さらに、敷板の構造が簡単であるため、その設置や撤去が容易である。 In order to achieve the above object, a rotor drawing method for a horizontal axis generator according to claim 1 of the present invention includes a rotor having shaft portions provided at both ends of a body portion, and the rotor installed inside. In a horizontal shaft type generator comprising a stator, the step of temporarily receiving the rotor on the inner peripheral surface of the stator after removing the coupling connected to the shaft portion so that the rotor can be pulled out of the stator And lift the shafts at both ends of the rotor to form a gap between the stator and the floor plate having a length at least twice the total length of the rotor so as to exceed the total length of the rotor from the end face of the stator And a step of installing a plurality of shaft support members on the floor plate to respectively support the shaft portions at both ends of the rotor so that the body portion of the rotor does not contact the floor plate. Slide the shaft support member from the stator to the side where the base plate protrudes. A step of pulling out the flat direction, is characterized in that it comprises a.
In such a method of pulling out the rotor of the horizontal axis generator, when pulling out the rotor from the stator, it is not necessary to use an overhead crane or the like in order to maintain the horizontal state of the rotor. Therefore, a so-called rehanging operation for adjusting the position of the wire of the overhead crane with the horizontal movement of the rotor does not occur. In addition, since the rotor is not suspended by a ceiling wire, an operator may be caught between the swinging rotor and the stator, resulting in injury, or the rotor colliding with the stator and being damaged. There is no. Furthermore, since the structure of the floorboard is simple, its installation and removal are easy.

また、請求項２に記載の発明は、請求項１記載の横軸型発電機の回転子引抜方法において、敷板を設置する前に、固定子から突出した敷板の一部を支持可能に，敷板支持部材を設置する工程を備えたことを特徴とするものである。
このような横軸型発電機の回転子引抜方法においては、請求項１に記載の発明の作用に加えて、敷板の設置状態が安定するという作用を有する。また、敷板支持部材の構造が簡単であるため、その設置や撤去が容易である。 Further, the invention according to claim 2 is the method for pulling out the rotor of the horizontal axis generator according to claim 1, so that a part of the base plate protruding from the stator can be supported before the base plate is installed. It is characterized by comprising a step of installing a support member.
In such a method of pulling out the rotor of the horizontal axis type generator, in addition to the operation of the invention described in claim 1, the installation state of the floorboard is stabilized. Moreover, since the structure of the floor-plate support member is simple, its installation and removal are easy.

請求項３に記載の発明である横軸型発電機の回転子挿入方法は、胴体部の両端に軸部が設けられた回転子と，この回転子を内部に挿入可能に設置される固定子を備える横軸型発電機において、回転子の全長の少なくとも２倍の長さを有する敷板を固定子の端面から回転子の全長を超えるように突出させて固定子の内周面上に設置する工程と、回転子の両端の軸部を支持可能に，固定子から突出した敷板の一部の上面に複数の軸部支持部材を設置する工程と、胴体部が敷板に接触しないように，回転子の両端の軸部を軸部支持部材上に載置する工程と、回転子を固定子内へ，軸部支持部材を摺動させて水平方向に挿入する工程と、を備えたことを特徴とする。
このような横軸型発電機の回転子挿入方法においては、回転子を固定子に挿入する際に、回転子は両端の軸部が軸部支持部材によって支持された状態が保たれるため、天井クレーン等を用いる場合とは異なり、ワイヤの吊り換え作業が発生しない。また、敷板の構造が簡単であるため、設置や撤去が容易である。 According to a third aspect of the present invention, there is provided a rotor insertion method for a horizontal axis generator, a rotor having shaft portions provided at both ends of a body portion, and a stator installed so that the rotor can be inserted therein. In the horizontal axis generator comprising: a base plate having a length at least twice the total length of the rotor is projected from the end surface of the stator so as to exceed the total length of the rotor, and is installed on the inner peripheral surface of the stator Rotating so that the body part does not come into contact with the floor plate, the process, the step of installing a plurality of shaft part support members on the upper surface of a part of the floor plate protruding from the stator so that the shafts at both ends of the rotor can be supported A step of placing the shaft portions at both ends of the child on the shaft portion support member, and a step of sliding the shaft portion support member into the stator and inserting the shaft portion in the horizontal direction. And
In such a horizontal axis generator rotor insertion method, when the rotor is inserted into the stator, the rotor is maintained in a state where the shaft portions at both ends are supported by the shaft portion support members. Unlike the case of using an overhead crane or the like, there is no need to hang wires. Moreover, since the structure of the floorboard is simple, installation and removal are easy.

請求項４に記載の発明は、請求項３記載の横軸型発電機の回転子挿入方法において、敷板を設置する前に、固定子から突出する敷板の一部を支持可能に，敷板支持部材を設置する工程を備えたことを特徴とするものである。
このような横軸型発電機の回転子挿入方法においては、請求項３に記載の発明の作用に加えて、敷板支持部材の設置や撤去が容易であるとともに、敷板の設置状態が安定するという作用を有する。 According to a fourth aspect of the present invention, in the method for inserting a rotor of a horizontal axis generator according to the third aspect of the present invention, the floor plate support member can support a part of the floor plate protruding from the stator before the floor plate is installed. It is characterized by comprising a step of installing
In such a method of inserting the rotor of the horizontal axis generator, in addition to the operation of the invention according to claim 3, it is easy to install and remove the base plate support member and to stabilize the installation state of the base plate. Has an effect.

本発明の請求項１に記載の横軸型発電機の回転子引抜方法によれば、固定子から回転子を安全に効率よく引き抜くことができる。また、敷板の製造コスト及びその設置作業や撤去作業に要するコストを安くすることができる。従って、保守点検に要する費用の削減化を図ることが可能となる。   According to the rotor extracting method for a horizontal axis generator according to claim 1 of the present invention, the rotor can be extracted from the stator safely and efficiently. Moreover, the manufacturing cost of the floorboard and the cost required for the installation work and removal work can be reduced. Therefore, it is possible to reduce the cost required for maintenance and inspection.

本発明の請求項２に記載の発明によれば、請求項１に記載の発明の効果に加えて、回転子を固定子から引き抜く際の安全性を高めるとともに、敷板支持部材の製造コストやその設置及び撤去に係る作業コストを安くできるという効果を奏する。   According to the invention described in claim 2 of the present invention, in addition to the effect of the invention described in claim 1, while improving the safety when the rotor is pulled out from the stator, the manufacturing cost of the floorboard support member and its There is an effect that the work cost related to installation and removal can be reduced.

本発明の請求項３に記載の横軸型発電機の回転子挿入方法によれば、回転子を固定子に対して安全かつ効率的に挿入することが可能である。また、敷板の製造コストやその設置作業及び撤去作業に要するコストを安くして、保守点検に要する費用の削減化を図ることができる。   According to the rotor insertion method of the horizontal axis generator according to claim 3 of the present invention, it is possible to insert the rotor safely and efficiently into the stator. In addition, it is possible to reduce the cost required for maintenance and inspection by reducing the cost of manufacturing the floorboard and the cost required for installation and removal.

本発明の請求項４に記載の発明によれば、請求項３に記載の発明の効果に加えて、固定子に対して回転子を挿入する際の安全性を高めるとともに、敷板支持部材の製造コスト、その設置作業及び撤去作業に要するコストの削減化を図ることができるという効果を奏する。   According to the invention described in claim 4 of the present invention, in addition to the effect of the invention described in claim 3, the safety when inserting the rotor into the stator is improved, and the manufacturing of the floor support member There is an effect that it is possible to reduce the cost, the cost required for the installation work and the removal work.

（ａ）乃至（ｄ）は本発明の実施の形態に係る横軸型発電機の回転子引抜方法を示した模式図である。(A) thru | or (d) is the schematic diagram which showed the rotor extraction method of the horizontal shaft type generator which concerns on embodiment of this invention. （ａ）及び（ｂ）はそれぞれ本実施例の横軸型発電機の回転子引抜方法及び回転子挿入方法の手順を示したフローチャートである。(A) And (b) is the flowchart which showed the procedure of the rotor extraction method and rotor insertion method of the horizontal shaft type generator of a present Example, respectively. （ａ）乃至（ｄ）は横軸型発電機において固定子から回転子を引き抜く従来の方法を示した模式図である。(A) thru | or (d) is the schematic diagram which showed the conventional method of extracting a rotor from a stator in a horizontal axis type generator. （ａ）乃至（ｄ）は横軸型発電機において固定子から回転子を引き抜く従来の方法を示した模式図である。(A) thru | or (d) is the schematic diagram which showed the conventional method of extracting a rotor from a stator in a horizontal axis type generator. （ａ）及び（ｂ）は横軸型発電機において固定子から回転子を引き抜く従来の方法を示した模式図である。(A) And (b) is the schematic diagram which showed the conventional method of extracting a rotor from a stator in a horizontal shaft type generator. 横軸型発電機において固定子から回転子を引き抜く従来の手順を示したフローチャートである。It is the flowchart which showed the conventional procedure which pulls out a rotor from a stator in a horizontal axis type generator.

本発明の横軸型発電機の回転子挿抜方法の実施例について、図１及び図２を参照しながら具体的に説明する。   The embodiment of the rotor insertion / extraction method of the horizontal axis generator according to the present invention will be specifically described with reference to FIGS. 1 and 2.

図１（ａ）乃至（ｄ）は本実施例の横軸型発電機の回転子引抜方法を示した模式図であり、図２（ａ）及び図２（ｂ）はそれぞれ本実施例の横軸型発電機の回転子引抜方法及び回転子挿入方法の手順を示したフローチャートである。なお、図１では固定子のみを断面図として表示している。また、図３乃至図５に示した構成要素については同一の符号を付して、その説明を省略する。
図２（ａ）において、まず、ステップＳ１で回転子５２に連結されたカップリング（図示せず）等を外し、固定子５３の内周面で回転子５２を仮受けする（仮受け工程）。その後、回転子５２の軸部５２ａ，５２ｂに天井クレーン５５のワイヤ５４，５４をそれぞれ掛回し、天井クレーン５５で軸部５２ａ，５２ｂを吊り上げ、回転子５２と固定子５３の間の空隙５９を形成する（図１（ａ））。
次に、ステップＳ２において、床上の所定の箇所に複数（本実施例の場合には４個）の敷板支持部材２を設置する。そして、ステップＳ３では、回転子５２の全長の少なくとも２倍以上の長さを有する鋼板製の敷板１を固定子５３の端面５３ａから回転子５２の全長を超えるように突出させて空隙５９に設置する。このとき、固定子５３から突出した敷板１の一部は、敷板支持部材２によって支持される。さらに、ステップＳ４において、回転子５２の胴体部５２ｃが敷板１に接触しないように、敷板１の上面に軸部支持部材としてシュー５７，５７を設置し、軸部５２ａ，５２ｂを支持する。なお、敷板１は、側面視して回転子５２の外周面に沿って円弧状をなしており、その上面には、シュー５７の滑動性を高めるため、パラフィン等の潤滑材が塗布されている。また、敷板支持部材２は、敷板１を支持するのに十分な剛性を有しており、側面視して上面が敷板１の下面に沿った形状に加工されている（図１（ｂ））。 FIGS. 1A to 1D are schematic views showing a method of pulling out the rotor of the horizontal axis generator according to this embodiment. FIGS. 2A and 2B are horizontal views of this embodiment. It is the flowchart which showed the procedure of the rotor extraction method and rotor insertion method of a shaft type generator. In FIG. 1, only the stator is shown as a cross-sectional view. The components shown in FIGS. 3 to 5 are denoted by the same reference numerals, and description thereof is omitted.
2A, first, a coupling (not shown) connected to the rotor 52 is removed in step S1, and the rotor 52 is temporarily received by the inner peripheral surface of the stator 53 (temporary receiving process). . Thereafter, the wires 54 and 54 of the overhead crane 55 are respectively hung on the shaft portions 52 a and 52 b of the rotor 52, and the shaft portions 52 a and 52 b are lifted by the overhead crane 55, and a gap 59 between the rotor 52 and the stator 53 is formed. It forms (FIG. 1 (a)).
Next, in step S2, a plurality (four in the case of the present embodiment) of the floorboard support members 2 are installed at predetermined locations on the floor. In step S 3, the steel sheet base plate 1 having a length at least twice as long as the entire length of the rotor 52 is protruded from the end surface 53 a of the stator 53 so as to exceed the entire length of the rotor 52 and installed in the gap 59. To do. At this time, a part of the base plate 1 protruding from the stator 53 is supported by the base plate support member 2. Further, in step S4, shoes 57, 57 are installed as shaft support members on the top surface of the floor plate 1 so that the body 52c of the rotor 52 does not contact the floor plate 1, and the shaft portions 52a, 52b are supported. The floor plate 1 has an arc shape along the outer peripheral surface of the rotor 52 as viewed from the side, and a lubricant such as paraffin is applied to the upper surface of the floor plate 1 in order to improve the sliding property of the shoe 57. . Moreover, the floor-plate support member 2 has sufficient rigidity to support the floor-plate 1, and the upper surface is processed into a shape along the lower surface of the floor-plate 1 in a side view (FIG. 1B). .

ステップＳ５では、図１（ｂ）に示した状態の回転子５２に対し、建屋の壁等に一端が固定されたチェーンブロック（図示せず）の他端を軸部５２ａに取り付け、シュー５７，５７を摺動させて矢印Ｘで示すように固定子５３の外部へ引き抜く（図１（ｃ））。次に、ステップＳ６において、胴体部５２ｃの長さ方向の略中央部にワイヤ５４を掛回し、回転子５２を天井クレーン５５で吊持するとともに、軸部５２ａ，５２ｂからシュー５７，５７を取り除く。そして、図１（ｄ）に矢印Ｙで示すように、天井クレーン５５を操作して回転子５２を吊り上げ、予め点検作業用に確保されたスペース（図示せず）へ搬送する。   In step S5, the other end of a chain block (not shown) whose one end is fixed to the wall of the building or the like is attached to the shaft portion 52a with respect to the rotor 52 in the state shown in FIG. 57 is slid and pulled out of the stator 53 as indicated by an arrow X (FIG. 1C). Next, in step S6, the wire 54 is hung on the substantially central portion in the longitudinal direction of the body portion 52c, the rotor 52 is suspended by the overhead crane 55, and the shoes 57, 57 are removed from the shaft portions 52a, 52b. . Then, as indicated by an arrow Y in FIG. 1D, the overhead crane 55 is operated to lift the rotor 52 and transport it to a space (not shown) reserved in advance for inspection work.

このような横軸型発電機の回転子引抜方法においては、回転子５２を固定子５３から引き抜く際に、回転子５２を天井クレーン５５で吊持して水平状態を保つ必要がないことから、吊り換え作業が発生しない。従って、回転子５２の引抜作業に要する時間が短縮化される。また、天井クレーン５５で回転子５２を吊持しないため、揺動する回転子５２と固定子５３の間に作業員が挟まれて怪我をしたり、回転子５２が固定子５３に衝突して破損したりするおそれがない。さらに、敷板支持部材２で敷板１を支持することにより、敷板１の設置状態が安定する。加えて、敷板１や敷板支持部材２は、構造が簡単であるため、その設置や撤去が容易である。   In such a method of pulling out the rotor of the horizontal shaft type generator, when the rotor 52 is pulled out from the stator 53, it is not necessary to hold the rotor 52 with the overhead crane 55 and maintain the horizontal state. No rework work occurs. Accordingly, the time required for the work of pulling out the rotor 52 is shortened. Further, since the rotor 52 is not suspended by the overhead crane 55, an operator is caught between the swinging rotor 52 and the stator 53, and the rotor 52 collides with the stator 53. There is no risk of damage. Furthermore, the installation state of the floor board 1 is stabilized by supporting the floor board 1 with the floor board support member 2. In addition, since the floorboard 1 and the floorboard support member 2 have a simple structure, their installation and removal are easy.

以上説明したように、本実施例の横軸型発電機の回転子引抜方法によれば、回転子５２を固定子５３から安全に効率よく引き抜くことが可能である。また、敷板１及び敷板支持部材２の製造コスト及びそれらの設置作業や撤去作業に要するコストを安くすることができる。従って、保守点検に要する費用の削減化を図ることが可能である。   As described above, according to the rotor pulling method of the horizontal axis generator of this embodiment, the rotor 52 can be pulled out from the stator 53 safely and efficiently. Moreover, the manufacturing cost of the flooring board 1 and the flooring board supporting member 2 and the cost required for their installation work and removal work can be reduced. Therefore, it is possible to reduce the cost required for maintenance and inspection.

次に、回転子５２を固定子５３の内部へ挿入する方法について、固定子５３から回転子５２を引き抜く作業の説明に用いた図１を参照しながら、図２（ｂ）を用いて説明する。なお、図１（ｂ）ではステップの番号をＳ７〜Ｓ１３としているが、これは図１（ａ）に示したステップＳ１〜Ｓ６と異なる工程であることを示しているに過ぎず、図１（ｂ）に示す工程が図１（ａ）に示す工程に引き続いて行われるわけではない。また、図１（ａ）を用いて説明した構成要素については、説明の一部を省略する。
図２（ｂ）において、まず、ステップＳ７で、床上の所定の箇所に複数（本実施例の場合には４個）の敷板支持部材２を設置する。ステップＳ８では、回転子５２の全長の少なくとも２倍以上の長さを有する鋼板製の敷板１を固定子５３の端面５３ａから回転子５２の全長を超えるように突出させて固定子５３の内周面上に設置する。このとき、固定子５３から突出した敷板１の一部は、敷板支持部材２によって支持される。そして、点検作業用のスペース等に設置されている回転子５２を天井クレーン５５で固定子５３が設置されている場所に搬送し、固定子５３から突出した敷板１の上方に配置する（図１（ｄ））。 Next, a method of inserting the rotor 52 into the stator 53 will be described with reference to FIG. 2B while referring to FIG. 1 used for explaining the operation of pulling out the rotor 52 from the stator 53. . In FIG. 1B, the step numbers are S7 to S13. However, this is only a step different from steps S1 to S6 shown in FIG. The step shown in b) is not performed following the step shown in FIG. A part of the description of the components described with reference to FIG.
In FIG. 2B, first, in step S7, a plurality (four in the case of the present embodiment) of the floorboard support members 2 are installed at predetermined locations on the floor. In step S <b> 8, the steel sheet base plate 1 having a length at least twice as long as the entire length of the rotor 52 is projected from the end surface 53 a of the stator 53 so as to exceed the entire length of the rotor 52. Install on the surface. At this time, a part of the base plate 1 protruding from the stator 53 is supported by the base plate support member 2. And the rotor 52 installed in the space for inspection work etc. is conveyed to the place where the stator 53 is installed with the overhead crane 55, and is arrange | positioned above the floorboard 1 which protruded from the stator 53 (FIG. 1). (D)).

ステップＳ９では、回転子５２の軸部５２ａ，５２ｂを支持可能に，固定子５３から突出した敷板１の上面に軸部支持部材としてシュー５７，５７を設置し、ステップＳ１０において、天井クレーン５５を操作して回転子５２の軸部５２ａ，５２ｂをシュー５７，５７上に載置する。このとき、胴体部５２ｃは敷板１に接触せず、軸部５２ａ，５２ｂがシュー５７，５７によって支持されている（図１（ｃ））。そして、ステップＳ１１において、前述のチェーンブロック（図示せず）を用いて図１（ｂ）に示す矢印Ｘの逆向きにシュー５７，５７を摺動させながら回転子５２を移動させ、固定子５３の内部へ挿入する。
ステップＳ１２では、回転子５２の軸部５２ａ，５２ｂに天井クレーン５５のワイヤ５４，５４をそれぞれ掛回し、天井クレーン５５で軸部５２ａ，５２ｂを吊り上げ、シュー５７を取り除くとともに、敷板１と敷板支持部材２を撤去する。さらに、ステップＳ１３において、天井クレーン５５を操作して回転子５２を降下させ、固定子５３の内周面で回転子５２を仮受けする（仮受け工程）。 In step S9, shoes 57, 57 are installed as shaft supporting members on the upper surface of the floor plate 1 protruding from the stator 53 so as to support the shafts 52a, 52b of the rotor 52. In step S10, the overhead crane 55 is By operating, the shaft portions 52a and 52b of the rotor 52 are placed on the shoes 57 and 57, respectively. At this time, the body portion 52c does not contact the floor plate 1, and the shaft portions 52a and 52b are supported by the shoes 57 and 57 (FIG. 1C). In step S11, the rotor 52 is moved while sliding the shoes 57, 57 in the direction opposite to the arrow X shown in FIG. Insert inside.
In step S12, the wires 54 and 54 of the overhead crane 55 are respectively hung on the shaft portions 52a and 52b of the rotor 52, the shaft portions 52a and 52b are lifted by the overhead crane 55, the shoe 57 is removed, and the floor plate 1 and the floor plate are supported. The member 2 is removed. Furthermore, in step S13, the overhead crane 55 is operated to lower the rotor 52, and the rotor 52 is temporarily received by the inner peripheral surface of the stator 53 (temporary receiving step).

このような横軸型発電機の回転子挿入方法においては、回転子５２を固定子５３へ挿入する際に、回転子５２の水平状態を維持するために、天井クレーン５５で吊持する必要がない。従って、吊り換え作業が発生しない。これにより、回転子５２の挿入作業に要する時間が短縮化される。また、天井クレーン５５を使用する場合と異なり、回転子５２を水平移動する際に、回転子５２が揺動しない。従って、回転子５２と固定子５３の間に作業員が挟まれて怪我をしたり、回転子５２が固定子５３に衝突して破損したりするおそれがない。さらに、敷板１が敷板支持部材２で支持されるため、敷板１の設置状態が安定する。そして、敷板１や敷板支持部材２の構造が簡単であるため、設置作業や撤去作業の際の効率が向上する。   In such a method of inserting the rotor of the horizontal axis generator, when the rotor 52 is inserted into the stator 53, it is necessary to suspend the rotor 52 with an overhead crane 55 in order to maintain the horizontal state of the rotor 52. Absent. Therefore, no rework work occurs. Thereby, the time required for the insertion work of the rotor 52 is shortened. In addition, unlike the case of using the overhead crane 55, the rotor 52 does not swing when the rotor 52 is moved horizontally. Therefore, there is no possibility that an operator may be caught between the rotor 52 and the stator 53 to be injured, or the rotor 52 may collide with the stator 53 and be damaged. Furthermore, since the floor board 1 is supported by the floor board support member 2, the installation state of the floor board 1 is stabilized. And since the structure of the baseplate 1 and the baseplate support member 2 is simple, the efficiency in the case of installation work or removal work improves.

以上説明したように、本実施例の横軸型発電機の回転子挿入方法によれば、回転子５２を固定子５３へ安全に効率よく挿入することが可能である。また、敷板１及び敷板支持部材２の製造コスト及びそれらの設置作業や撤去作業に要するコストを安くして、保守点検に要する費用の削減化を図ることが可能である。   As described above, according to the rotor insertion method of the horizontal axis generator of this embodiment, the rotor 52 can be safely and efficiently inserted into the stator 53. Further, it is possible to reduce the manufacturing cost of the floorboard 1 and the floorboard support member 2 and the cost required for installation and removal of the floorboard 1 and the cost required for maintenance and inspection.

なお、本実施例では、回転子５２の鉛直方向への移動に天井クレーン５５を用い、回転子５２の水平方向への移動にチェーンブロックを用いているが、回転子５２の移動はこのような手段に限定されるものではなく、例えば、ジャッキ等のように本実施例で示したもの以外の手段を用いても良い。また、固定子５３や回転子５２の半径に比べて敷板１の幅が狭い場合には、敷板１を側面視円弧状に形成する代わりに、側面視直線状に形成するとともに、敷板支持部材２の上面の形状及びシュー５７の下面の形状を側面視円弧状ではなく、側面視直線状に形成することもできる。   In this embodiment, the overhead crane 55 is used for the movement of the rotor 52 in the vertical direction and the chain block is used for the movement of the rotor 52 in the horizontal direction. The present invention is not limited to the means, and means other than those shown in this embodiment, such as a jack, may be used. Further, when the width of the floor plate 1 is narrower than the radius of the stator 53 or the rotor 52, the floor plate 1 is formed in a straight line shape in side view instead of being formed in a circular shape in side view, and the floor plate support member 2 is formed. The shape of the upper surface and the shape of the lower surface of the shoe 57 can be formed in a straight line shape in a side view instead of an arc shape in a side view.

本発明の請求項１乃至請求項４に記載された発明は、横軸型発電機に限らず、回転子を水平方向に移動させて、固定子へ挿入したり、あるいは固定子から引き抜いたりする必要がある場合に適用可能である。   The invention described in claims 1 to 4 of the present invention is not limited to a horizontal axis generator, and the rotor is moved in the horizontal direction and inserted into the stator or pulled out of the stator. Applicable when necessary.

１…敷板 ２…敷板支持部材 ５１…横軸型発電機 ５２…回転子 ５２ａ，５２ｂ…軸部 ５２ｃ…胴体部 ５３…固定子 ５３ａ…端面 ５４…ワイヤ ５５…天井クレーン ５６…敷板 ５７…シュー ５８…支持ブロック ５９…空隙   DESCRIPTION OF SYMBOLS 1 ... Base plate 2 ... Base plate support member 51 ... Horizontal shaft type generator 52 ... Rotor 52a, 52b ... Shaft part 52c ... Trunk part 53 ... Stator 53a ... End surface 54 ... Wire 55 ... Overhead crane 56 ... Base plate 57 ... Shoe 58 … Support block 59… gap

Claims (4)

胴体部の両端に軸部が設けられた回転子と，この回転子が内部に設置される固定子とを備える横軸型発電機において、
前記軸部に連結されたカップリングを外して前記回転子を前記固定子から引き抜き可能とした後，前記回転子を前記固定子の内周面で仮受けする工程と、
前記回転子の両端の前記軸部を持ち上げて前記固定子との間に空隙を形成し，前記回転子の全長の少なくとも２倍の長さを有する敷板を前記固定子の端面から前記回転子の全長を超えるように突出させて前記空隙に設置する工程と、
前記回転子の前記胴体部が前記敷板に接触しないように，前記敷板上に複数の軸部支持部材を設置して前記回転子の両端の前記軸部をそれぞれ支持する工程と、
前記回転子を前記固定子から前記敷板が突出する側へ，前記軸部支持部材を摺動させて水平方向に引き抜く工程と、
を備えたことを特徴とする横軸型発電機の回転子引抜方法。 In a horizontal axis generator including a rotor having shaft portions provided at both ends of a body portion, and a stator in which the rotor is installed,
Removing the coupling connected to the shaft portion and allowing the rotor to be pulled out from the stator, and then temporarily receiving the rotor on the inner peripheral surface of the stator;
The shafts at both ends of the rotor are lifted to form a gap between the rotor and a floor plate having a length at least twice the total length of the rotor from the end surface of the stator. A step of projecting to exceed the total length and installing in the gap;
Installing a plurality of shaft support members on the floor plate so that the body portion of the rotor does not contact the floor plate, and respectively supporting the shaft portions at both ends of the rotor;
Drawing the rotor in a horizontal direction by sliding the shaft support member toward the side from which the floor plate protrudes from the stator;
A rotor drawing method for a horizontal axis generator, comprising: 前記敷板を設置する前に、前記固定子から突出した前記敷板の一部を支持可能に，敷板支持部材を設置する工程を備えたことを特徴とする請求項１記載の横軸型発電機の回転子引抜方法。   2. The horizontal axis generator according to claim 1, further comprising a step of installing a floor plate support member so as to be able to support a part of the floor plate protruding from the stator before the floor plate is installed. Rotor extraction method. 胴体部の両端に軸部が設けられた回転子と，この回転子を内部に挿入可能に設置される固定子を備える横軸型発電機において、
前記回転子の全長の少なくとも２倍の長さを有する敷板を前記固定子の端面から前記回転子の全長を超えるように突出させて前記固定子の内周面上に設置する工程と、
前記回転子の両端の前記軸部を支持可能に，前記固定子から突出した前記敷板の一部の上面に複数の軸部支持部材を設置する工程と、
前記胴体部が前記敷板に接触しないように，前記回転子の両端の前記軸部を前記軸部支持部材上に載置する工程と、
前記回転子を前記固定子内へ，前記軸部支持部材を摺動させて水平方向に挿入する工程と、
を備えたことを特徴とする横軸型発電機の回転子挿入方法。 In a horizontal shaft type generator including a rotor provided with shaft portions at both ends of a body portion and a stator installed so that the rotor can be inserted therein,
A step of projecting a floor plate having a length at least twice as long as the full length of the rotor from the end face of the stator so as to exceed the full length of the rotor, and installing on the inner peripheral surface of the stator;
Installing a plurality of shaft support members on an upper surface of a part of the floor plate protruding from the stator so as to support the shafts at both ends of the rotor;
Placing the shaft portions on both ends of the rotor on the shaft portion supporting member so that the body portion does not contact the floor plate;
Inserting the rotor into the stator and sliding the shaft support member in the horizontal direction;
A rotor insertion method for a horizontal axis generator, comprising: 前記敷板を設置する前に、前記固定子から突出した前記敷板の一部を支持可能に，敷板支持部材を設置する工程を備えたことを特徴とする請求項３記載の横軸型発電機の回転子挿入方法。
The horizontal axis generator according to claim 3, further comprising a step of installing a floor plate support member so as to support a part of the floor plate protruding from the stator before the floor plate is installed. Rotor insertion method.
JP2011021121A 2011-02-02 2011-02-02 Method of pulling out rotor of horizontal shaft type power generator and method of inserting the rotor Withdrawn JP2012161212A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105247767A (en) * 2013-02-15 2016-01-13 西门子能源公司 Method and apparatus for generator stator core separation
JP2017195723A (en) * 2016-04-21 2017-10-26 東芝三菱電機産業システム株式会社 Rotor withdrawal method and rotor withdrawal exclusive tool set
CN107359759A (en) * 2017-09-01 2017-11-17 华菱安赛乐米塔尔汽车板有限公司 The device of Large Synchronous Machine punching is completed using flat car
RU2727528C1 (en) * 2019-08-30 2020-07-22 Цзянсуская корпорация по ядерной энергетике Anchor unit for steam turbine generator rotor extraction

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105247767A (en) * 2013-02-15 2016-01-13 西门子能源公司 Method and apparatus for generator stator core separation
JP2016508020A (en) * 2013-02-15 2016-03-10 シーメンス エナジー インコーポレイテッド Method and apparatus for separating the stator core of a generator
JP2017195723A (en) * 2016-04-21 2017-10-26 東芝三菱電機産業システム株式会社 Rotor withdrawal method and rotor withdrawal exclusive tool set
CN107359759A (en) * 2017-09-01 2017-11-17 华菱安赛乐米塔尔汽车板有限公司 The device of Large Synchronous Machine punching is completed using flat car
CN107359759B (en) * 2017-09-01 2023-07-21 华菱安赛乐米塔尔汽车板有限公司 Device for finishing core penetration of large synchronous motor by utilizing flat car
RU2727528C1 (en) * 2019-08-30 2020-07-22 Цзянсуская корпорация по ядерной энергетике Anchor unit for steam turbine generator rotor extraction

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