JPS6243073B2 - - Google Patents
Info
- Publication number
- JPS6243073B2 JPS6243073B2 JP53107616A JP10761678A JPS6243073B2 JP S6243073 B2 JPS6243073 B2 JP S6243073B2 JP 53107616 A JP53107616 A JP 53107616A JP 10761678 A JP10761678 A JP 10761678A JP S6243073 B2 JPS6243073 B2 JP S6243073B2
- Authority
- JP
- Japan
- Prior art keywords
- divided piece
- cover
- guide vane
- divided
- introduction
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 7
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 2
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Hydraulic Turbines (AREA)
Description
【発明の詳細な説明】
本発明は特に発電機の下部のピツトを利用した
水車カバーの分解方法の改良に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention particularly relates to an improved method for disassembling a water turbine cover using a pit at the bottom of a generator.
一般的には、水車（水車専用機、ポンプ水車を
含む）の分解組立は、発電機の下部のピツトを通
して行うが、従来は水車カバーを等しい大きさに
たとえば４分割して行つている。しかし、近年水
車の高揚程、高速化につれて発電機に比較して水
車の外径が大形になり、このため従来とほとんど
穴径がかわらないピツトでは、単に水車カバーを
分割しても、その分割片を通過させることが出来
なくなる。そのため、水車カバーの分割数を増加
することが考えられるが、分割数を増加すると製
作コスト及び据付日数が増加すると同時に、機械
強度の信頼性の点からも問題がある。 Generally, disassembly and assembly of water turbines (including dedicated water turbines and pump water turbines) is carried out through a pit at the bottom of the generator, but conventionally the water turbine cover has been divided into equal sizes, for example, into four parts. However, in recent years, as the head and speed of water turbines have increased, the outer diameter of the water turbine has become larger than that of a generator. It becomes impossible to pass the divided pieces. Therefore, it is possible to increase the number of divisions of the water turbine cover, but increasing the number of divisions increases manufacturing costs and installation days, and also poses problems in terms of reliability of mechanical strength.
本発明の目的とするところは、分割数を増加す
ることなく、分解時間を短縮した水車カバーの分
解方法を提案することにある。 An object of the present invention is to propose a method for disassembling a water turbine cover that shortens disassembly time without increasing the number of divisions.
本発明の水車カバーの分解方法は、分割片の少
なくとも１個の分割片の外周幅寸法L1を導入路
内径Ｄより小さく形成した小分割片と、残りの分
割片は外周幅寸法L2が導入路内径より大きく、
かつ外周端と内周突出端との間の幅寸法Ｗを導入
路内径より小さく形成した大分割片とから成る上
カバーと、上カバーをガイドベーン軸上に仮置
し、各分割片に分解し、小分割片を導入路より引
出した後、小分割片の引出後のガイドベーン軸を
除去した空間を利用して、大分割片の外周寸法が
導入路の軸方向と略同方向になるように大分割片
を傾斜し、大分割片を傾斜状態で導入路より外部
に引出すことにある。 The method for disassembling the water turbine cover of the present invention is to form small divided pieces in which at least one of the divided pieces has an outer circumferential width dimension L 1 smaller than the inlet channel inner diameter D, and the remaining divided pieces have an outer circumferential width dimension L 2 . Larger than the inner diameter of the introduction channel,
The upper cover is made up of a large divided piece in which the width dimension W between the outer circumferential end and the inner circumferential protruding end is smaller than the inner diameter of the introduction path, and the upper cover is temporarily placed on the guide vane shaft and disassembled into each divided piece. After the small divided piece is pulled out from the introduction path, the outer circumferential dimension of the large divided piece becomes approximately in the same direction as the axial direction of the introduction path by using the space where the guide vane shaft was removed after the small divided piece was pulled out. The main purpose is to tilt the large divided piece so that the large divided piece is pulled out from the introduction path in an inclined state.
以下、本発明の実施例を第１図ないし第９図に
より説明する。 Embodiments of the present invention will be described below with reference to FIGS. 1 to 9.
基礎部材１たとえばコンクリートにピツト２を
形成する。ピツト２は導入路２Ａと収納路２Ｂと
から構成されており、導入路２Ａの穴径Ｄは収納
路２Ｂの穴径より小さい。収納路２Ｂに作業通路
２Ｃおよび突出部２Ｄを形成している。作業通路
２Ｃは基礎部材１に貫通穴をあけて、収納路２Ｂ
に連通している。突出部２Ｄは基礎部材１の一部
を収納路側に突出して形成すると共に、突出部２
Ｄに水車カバーつまり上カバー３を載置し、ネジ
４により上カバー３を突出部２Ｄに固定すると共
に、上カバー３の下側にランナ５を配置してい
る。ランナ５の主軸（図示せず）は上カバー３の
中心部に形成した中空穴３Ａを貫通する。突出部
２Ｄを介して上カバー３と下カバー６とに形成し
たカバー穴６′にガイドベーン軸８を挿入支持
し、上カバー３と突出部２Ｄおよび下カバー６と
の間に形成した水路９にガイドベーン１０を配置
し、ガイドベーン１０はガイドベーン軸８に挿入
支持されている。 A pit 2 is formed in a foundation member 1, for example concrete. The pit 2 is composed of an introduction path 2A and a storage path 2B, and the hole diameter D of the introduction path 2A is smaller than the hole diameter of the storage path 2B. A working passage 2C and a protrusion 2D are formed in the storage passage 2B. The working passage 2C is formed by making a through hole in the foundation member 1 and forming the storage passage 2B.
is connected to. The protruding portion 2D is formed by protruding a part of the base member 1 toward the storage path side, and the protruding portion 2D
A water turbine cover, that is, an upper cover 3 is placed on D, and the upper cover 3 is fixed to the protrusion 2D with screws 4, and a runner 5 is arranged below the upper cover 3. The main shaft (not shown) of the runner 5 passes through a hollow hole 3A formed in the center of the upper cover 3. A guide vane shaft 8 is inserted and supported into a cover hole 6' formed in the upper cover 3 and the lower cover 6 via the protruding part 2D, and a water channel 9 is formed between the upper cover 3, the protruding part 2D and the lower cover 6. A guide vane 10 is disposed at the guide vane 10, and the guide vane 10 is inserted and supported by the guide vane shaft 8.
上カバー３は、同図Ｂ，Ｃに示す如く４分割さ
れた分割片１１Ａ，１１Ｂ，１１Ｃ，１１Ｄによ
り構成されている。一対の小分割片１１Ｂ，１１
Ｄの外周幅寸法L1は導入路２Ａの穴径Ｄより小
さく、小分割片１１Ｂ，１１Ｃは第２図の如く水
平状態で導入路２Ａを通過出来る。一対の大分割
片１１Ａ，１１Ｃの外周幅寸法L2は導入路２Ａ
の穴径Ｄより大きく形成されている。外周端１２
Ａと内周突出端１２Ｂとの間の幅寸法Ｗは、穴径
Ｄより小さく形成されている。したがつて、大分
割片１１Ａ，１１Ｃは水平状態で導入路２Ａを通
過できないが、第３図の如く大分割片１１Ａ，１
１Ｃの長手方向の導入路２Ａの軸方向と同方向つ
まり垂直状態、傾斜状態にすれば、導入路２Ａを
通過できる。 The upper cover 3 is composed of four divided pieces 11A, 11B, 11C, and 11D, as shown in FIGS. A pair of small divided pieces 11B, 11
The outer circumferential width L 1 of D is smaller than the hole diameter D of the introduction path 2A, and the small divided pieces 11B and 11C can pass through the introduction path 2A in a horizontal state as shown in FIG. The outer circumferential width dimension L 2 of the pair of large divided pieces 11A and 11C is the introduction path 2A
It is formed larger than the hole diameter D of. Outer edge 12
The width dimension W between A and the inner peripheral protruding end 12B is smaller than the hole diameter D. Therefore, the large divided pieces 11A, 11C cannot pass through the introduction path 2A in a horizontal state, but as shown in FIG. 3, the large divided pieces 11A, 1
If it is set in the same direction as the axial direction of the introduction path 2A in the longitudinal direction of 1C, that is, in a vertical state or an inclined state, it can pass through the introduction path 2A.
各分割片１１Ａ〜１１Ｄと対応する分割片端
は、第４図に示す如く上側方向に折曲げたフラン
ジ部１３を形成している。フランジ部１３には図
示していないがボルト穴を形成している。フラン
ジ部同志を当接し、締付部１４Ａ，１４Ｂで締付
けて、固定する。締付部１４Ａ，１４Ｂはボルト
穴にボルト１５Ａを挿入し、ボルト１５Ａに装着
したナツト１５Ｂを締付けて、各分割片１１Ａ〜
１１Ｄを一体にして上カバー３を構成する。上述
の第４図では、ボルト・ナツト等の締付部１４
Ａ，１４Ｂは分割片１１Ａ，１１Ｃ，１１Ｄの一
部に示したが、実際には各分割片に設けられてい
る。また１６はガイドベーン軸と連絡するサーボ
モータであるが、途中の操作機構は省略してあ
る。 One end of each of the divided pieces 11A to 11D corresponds to a flange portion 13 bent upward as shown in FIG. Although not shown, bolt holes are formed in the flange portion 13. The flange portions are brought into contact with each other and tightened with the tightening portions 14A and 14B to be fixed. The tightening parts 14A and 14B are assembled by inserting the bolt 15A into the bolt hole and tightening the nut 15B attached to the bolt 15A.
11D are integrated to form the upper cover 3. In the above-mentioned FIG. 4, the tightening portion 14 of bolts, nuts, etc.
Although A and 14B are shown in part of the divided pieces 11A, 11C, and 11D, they are actually provided in each divided piece. Further, 16 is a servo motor communicating with the guide vane shaft, but the operating mechanism in the middle is omitted.
次に、上カバー３を収納路内で分解した後、外
部に引出す場合について、第１図ないし第９図に
より説明する。 Next, the case where the upper cover 3 is disassembled in the storage path and then pulled out to the outside will be explained with reference to FIGS. 1 to 9.
第１図に示す上カバー３は、ネジ４を外した
後、上カバー３にロープ２０を引掛けて、ロープ
を吊り上げて、上カバー３はカバー穴６′とガイ
ドベーン軸８とが一致しないように第４図に示す
如くガイドベーン軸８上に仮置きする。仮置きは
第２図に示す如く小分割片１１Ｄは鎖線位置から
実線の位置に引き上げてガイドベーン軸上に載置
する状態であり、この工程では小分割片に代えて
上カバー全体を仮置している。また第４図ではカ
バー穴６は一部を示し、他のカバー穴は省略して
いる。この点第５図ないし第８図も同様である。 The upper cover 3 shown in FIG. 1 is constructed by removing the screws 4, hooking the rope 20 on the upper cover 3, and lifting the rope. Temporarily place it on the guide vane shaft 8 as shown in FIG. The temporary placement is as shown in Fig. 2, in which the small divided piece 11D is pulled up from the chain line position to the solid line position and placed on the guide vane shaft.In this step, the entire upper cover is temporarily placed in place of the small divided piece. are doing. Further, in FIG. 4, only a portion of the cover hole 6 is shown, and other cover holes are omitted. The same applies to FIGS. 5 to 8 in this respect.
第４図に示す如く、作業員が作業通路２Ｃから
締付部１４Ａのボルト１５Ａ、ナツト１５Ｂを外
した後、一方の一対の分割片１１Ａ，１１Ｄと他
方の一対の分割片１１Ｂ，１１Ｃをロープ２０で
吊り上げて、締付部１４Ｂが作業通路２Ｃに来る
よう移動すると共に、一方の分割片１１Ａ，１１
Ｄと他方の分割片１１Ｂ，１１Ｃとの間に間隙２
２を形成する。 As shown in FIG. 4, after the worker removes the bolts 15A and nuts 15B of the tightening part 14A from the working passage 2C, the one pair of divided pieces 11A, 11D and the other pair of divided pieces 11B, 11C are attached to the rope. 20 and move it so that the tightening part 14B comes to the working passage 2C, and one of the divided pieces 11A, 11
There is a gap 2 between D and the other divided piece 11B, 11C.
form 2.
この状態で、一方の小分割片１１Ｄにロープ２
０を掛けて、吊り上げて、他方の小分割片１１Ｂ
に載置するが、この時小分割片１１Ｄの主表面２
３は、第６図に示す如く、主表面２３が180゜回
転して裏面になるよう回転して、他方の小分割片
１１Ｂと同形状の向きに配置する。また、一方の
大分割片１１Ａも上述と同様に回転して、他方の
大分割片１１Ｃと同形状となる向きに配置する。 In this state, the rope 2 is attached to one of the small divided pieces 11D.
Multiply by 0, lift, and remove the other subdivided piece 11B.
At this time, the main surface 2 of the small divided piece 11D
3 is rotated so that the main surface 23 is rotated 180 degrees to become the back surface, as shown in FIG. 6, and is arranged in the same shape as the other subdivided piece 11B. Further, one large divided piece 11A is also rotated in the same manner as described above and arranged in the same direction as the other large divided piece 11C.
この状態で小分割片１１Ｄは第６図の水平状態
で取付けたロープ２０を第２図に示す如く吊り上
げて、小分割片１１Ｄは水平状態で導入路２Ａを
通過し、外部に引出される。また他方の小分割片
１１Ｂも上述と同様な方法で外部に引出される。
引出された後に残されたガイドベーン軸８および
ガイドベーン軸１０は除去されて、外部に引出さ
れて、第７図に示すように収納路２Ｂに作業空間
を確保する。２４は下カバー６に形成したガイド
ベーン軸８の挿入溝である。 In this state, the small divided piece 11D lifts up the rope 20 attached in the horizontal state of FIG. 6 as shown in FIG. 2, and the small divided piece 11D passes through the introduction path 2A in the horizontal state and is drawn out. Further, the other subdivided piece 11B is also pulled out in the same manner as described above.
The guide vane shaft 8 and the guide vane shaft 10 that remain after being pulled out are removed and pulled out to the outside to secure a working space in the storage path 2B as shown in FIG. 24 is an insertion groove formed in the lower cover 6 for inserting the guide vane shaft 8.
第７図の状態で大分割片１１Ａに取付けてたロ
ープ２０を吊り上げて、残りのガイドベーン軸上
に仮置した後、第８図に示す如く他方の大分割片
１１Ｃも上述と同様に移動し、一方の大分割片１
１Ａの上に積み重ねた後、大分割片１１Ｃを支持
していたガイドベーン軸８、ガイドベーン１０を
除去して、収納路内に作業場所と第１図に示す高
さ方法Ｈとを有する作業空間２５とを確保する。
尚、第６図で小分割片を外部に引出した後、大分
割片を支持しているガイドベーン軸以外の全部の
ガイドベーン軸等を除去した後、第８図のように
積み重ねることなく、作業空間を確保してもよ
い。 After lifting the rope 20 attached to the large divided piece 11A in the state shown in FIG. 7 and temporarily placing it on the remaining guide vane shaft, the other large divided piece 11C is moved in the same manner as described above, as shown in FIG. and one large divided piece 1
1A, the guide vane shaft 8 and guide vane 10 supporting the large divided piece 11C are removed to create a work space in the storage path and a height H shown in FIG. 1. Space 25 is secured.
In addition, after pulling out the small divided pieces to the outside in Fig. 6, and removing all the guide vane shafts etc. other than the guide vane shaft supporting the large divided pieces, without stacking them as shown in Fig. 8, You may secure a work space.
この状態で上側の大分割片１１Ｃは一端に取付
けたロープ２０を第３図に示すように吊り上げる
と、大分割片１１Ｃの外周寸法L2が各通路２
Ａ，２Ｂの軸方向と略同方向の向に傾斜した状
態、つまり幅寸法Ｗの状態で導入通路２Ａを通過
できる状態で、大分割片１１Ｃを外部に引出すこ
とができる。大分割片１１Ｃの傾斜に際して
は、、作業場所および高さ寸法Ｈを確保すること
により、大分割片１１Ｃを傾斜する時に、大分割
片１１Ｃの一部が収納路２Ｂの一部に当接して、
傾斜する時の邪魔することなく、大分割片１１Ｃ
をスムーズに傾斜できる。大分割片の傾斜に際し
て、小分割片を引出した後の作業空間を利用すれ
ば、大分割片の傾斜作業が問題なく出来れば、小
分割片のガイドベーン軸のみ除去すればよい。ま
た下側の大分割片１１Ａも上述と同様な方法で外
部に引出した後、第９図の状態になる。第９図で
ガイドベーン軸８、ガイドベーン１０を外部に引
出して、上カバー３の分解作業は完了する。 In this state, when the upper large divided piece 11C is lifted by the rope 20 attached to one end as shown in FIG .
The large divided piece 11C can be pulled out in a state in which it can pass through the introduction passage 2A in a state where it is inclined in substantially the same direction as the axial direction of A and 2B, that is, in a state where the width dimension is W. When tilting the large divided piece 11C, by securing the working space and the height dimension H, when tilting the large divided piece 11C, a part of the large divided piece 11C comes into contact with a part of the storage path 2B. ,
Large divided piece 11C without getting in the way when tilting
can be tilted smoothly. When tilting the large piece, if the work space after pulling out the small piece is used, and the work of tilting the large piece can be done without any problem, only the guide vane shaft of the small piece needs to be removed. Further, after the lower large divided piece 11A is also pulled out to the outside in the same manner as described above, it is in the state shown in FIG. 9. In FIG. 9, the guide vane shaft 8 and guide vane 10 are pulled out to the outside, and the disassembly work of the upper cover 3 is completed.
上カバー３の組立は、上述の作業順序と逆にし
て行なえばよいから、大分割片を最初に収納路の
所定場所に配置した後、小分割片収納路に配置す
る。 The upper cover 3 can be assembled by reversing the order of operations described above, so that the large divided pieces are first placed at predetermined locations in the storage path, and then the small divided pieces are placed in the storage path.
このように、本発明では、収納路内で各小分割
片１１Ｂ，１１Ｄを外部に引出した後、大分割片
１１Ａ，１１Ｃは小分割片１１Ｂ，１１Ｄのない
作業空間２５を利用して、大分割片１１Ａ，１１
Ｃの外周寸法L2が各通路２Ａ，２Ｂの軸方向と
略同方向の向きなる傾斜作業をスムーズ出来るの
で、傾斜作業がしやすく、上カバーの分解作業時
間を短縮できる。このことは、３個の大分割片と
１個の小分割片とで構成した上カバーでも上述と
同様な作用、効果を達成できる。また、ガイドベ
ーン軸８を除去し、高さ寸法Ｈを確保すれば、傾
斜作業の作業空間が充分に確実にできるのと共
に、この分収納路を短縮できる。 In this way, in the present invention, after each of the small divided pieces 11B and 11D are pulled out to the outside within the storage path, the large divided pieces 11A and 11C are moved into the large divided piece by using the work space 25 where the small divided pieces 11B and 11D are not present. Divided pieces 11A, 11
Since the outer circumferential dimension L 2 of C can be smoothly tilted in the same direction as the axial direction of each passage 2A, 2B, the tilting work can be easily performed and the time required for disassembling the upper cover can be shortened. The same operation and effect as described above can be achieved even with an upper cover composed of three large divided pieces and one small divided piece. Further, by removing the guide vane shaft 8 and ensuring the height dimension H, a sufficient working space for tilting work can be created and the storage path can be shortened accordingly.
以上のように、本発明によれば、水車カバーの
分割数を増加することなく、大分割片の傾斜作業
をスムーズに出来るので、分解作業時間を短縮で
きる。 As described above, according to the present invention, it is possible to smoothly tilt the large divided pieces without increasing the number of divisions of the water turbine cover, so that the disassembly time can be shortened.
第１図Ａは本発明の実施例である水車カバー近
傍の組立状態を示す縦側断面図、同図Ｂは同図Ａ
に使用した上カバーの平面図、同図Ｃは同図Ａの
導入路の平面図、第２図ないし第３図は第１図Ａ
の上カバーの分解方法を説明する縦側断面図、第
４図ないし第９図は第１図Ａに使用した上カバー
の分解方法を説明する概略説明図である。
１……基礎部材、２……ピツト、２Ａ……導入
路、２Ｂ……収納路、２Ｄ……突出部、３……上
カバー、８……ガイドベーン軸、１１Ａ，１１Ｃ
……大分割片、１１Ｂ，１１Ｄ……小分割片、
L2……外周寸法。
Figure 1A is a vertical sectional view showing the assembled state near the water turbine cover which is an embodiment of the present invention, and Figure 1B is Figure A.
Figure C is a plan view of the upper cover used in Figure A. Figures 2 and 3 are Figure 1 A.
4 to 9 are schematic explanatory diagrams illustrating the method of disassembling the upper cover used in FIG. 1A. 1...Foundation member, 2...Pit, 2A...Introduction path, 2B...Storage path, 2D...Protrusion part, 3...Top cover, 8...Guide vane shaft, 11A, 11C
...Large divided piece, 11B, 11D...Small divided piece,
L 2 ...Outer circumference dimension.
Claims (1)
径の収納路とから成るピツトを形成し、収納路の
一部に形成した収納路側に突出する突出部と、突
出部の上側および下側に４個の分割片より成る上
カバーおよび下カバーを配置し、両カバーに形成
したカバー穴と、カバー穴に挿入し、かつ両カバ
ー間に支持されているガイドベーン軸と、上カバ
ーをガイドベーン軸上に仮置し、上カバーの各分
割片を４分割し、各分割片を吊り上げて、導入部
を通して外部に引出す水車カバーの分解方法にお
いて、 上記分割片の少なくとも１個の分割片の外周幅
寸法L1を導入路内径Ｄより小さく形成した小分
割片と、残りの分割片は外周幅寸法L2が導入路
内径より大きく、かつ外周端と内周突出端との間
の幅寸法Ｗを導入路内径より小さく形成した大分
割片とから成る上カバーと、上カバーをガイドベ
ーン軸上に仮置し、各分割片に分解し、小分割片
を導入路より引出した後、小分割片の引出後のガ
イドベーン軸を除去して形成した作業空間を利用
して、大分割片の外周寸法が導入路の軸方向と略
同方向になるように大分割片を傾斜し、大分割片
を傾斜状態で導入路より外部に引出すことを特徴
とする水車カバーの分解方法。[Scope of Claims] 1. A pit consisting of an introduction passage and a storage passage having a larger diameter than the inner diameter of the introduction part is formed in the base member, and a protrusion protruding toward the storage passage formed as a part of the storage passage; An upper cover and a lower cover consisting of four divided pieces are arranged on the upper and lower sides, and a cover hole is formed in both covers, and a guide vane shaft is inserted into the cover hole and supported between both covers. , a method for disassembling a water turbine cover in which the upper cover is temporarily placed on the guide vane shaft, each divided piece of the upper cover is divided into four parts, each divided piece is lifted up and pulled out to the outside through the introduction part, at least one of the above divided pieces A small divided piece has an outer circumferential width dimension L 1 smaller than the inner diameter D of the introduction channel, and the remaining divided pieces have an outer circumferential width dimension L 2 larger than the inner diameter of the introduction channel, and an outer circumferential end and an inner circumferential protruding end. Temporarily place the upper cover on the guide vane shaft, disassemble it into each divided piece, and separate the small divided piece from the introduction path. After pulling out the small divided piece, use the work space created by removing the guide vane shaft after pulling out the small divided piece to draw out the large divided piece so that the outer circumferential dimension of the large divided piece is approximately in the same direction as the axial direction of the introduction path. A method for disassembling a water turbine cover, the method comprising: tilting the water turbine cover, and pulling out the large divided piece from the introduction channel in an inclined state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10761678A JPS5535126A (en) | 1978-09-04 | 1978-09-04 | Dividing method for water mill cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10761678A JPS5535126A (en) | 1978-09-04 | 1978-09-04 | Dividing method for water mill cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5535126A JPS5535126A (en) | 1980-03-12 |
| JPS6243073B2 true JPS6243073B2 (en) | 1987-09-11 |
Family
ID=14463681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10761678A Granted JPS5535126A (en) | 1978-09-04 | 1978-09-04 | Dividing method for water mill cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5535126A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0473014A (en) * | 1990-07-16 | 1992-03-09 | Kojima Youkadou:Kk | Incense material |
| JP2013096245A (en) * | 2011-10-28 | 2013-05-20 | Toshiba Corp | Hydraulic machine, and method for disassembling the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5392059A (en) * | 1977-01-21 | 1978-08-12 | Toshiba Corp | Upper-cover assembling and disassembling method of water mill and the upper-cover suspending device for performing said method |
-
1978
- 1978-09-04 JP JP10761678A patent/JPS5535126A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5392059A (en) * | 1977-01-21 | 1978-08-12 | Toshiba Corp | Upper-cover assembling and disassembling method of water mill and the upper-cover suspending device for performing said method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5535126A (en) | 1980-03-12 |
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