JP2004162558A - Vertical shaft pump - Google Patents

Vertical shaft pump Download PDF

Info

Publication number
JP2004162558A
JP2004162558A JP2002327381A JP2002327381A JP2004162558A JP 2004162558 A JP2004162558 A JP 2004162558A JP 2002327381 A JP2002327381 A JP 2002327381A JP 2002327381 A JP2002327381 A JP 2002327381A JP 2004162558 A JP2004162558 A JP 2004162558A
Authority
JP
Japan
Prior art keywords
main shaft
sliding member
pump
shaft
impeller
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
Application number
JP2002327381A
Other languages
Japanese (ja)
Other versions
JP4066163B2 (en
Inventor
Hideki Jinno
秀基 神野
Shoichi Kume
章市 久米
Suguru Abe
英 阿部
Ryoji Otake
良治 大竹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebara Corp
Original Assignee
Ebara Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ebara Corp filed Critical Ebara Corp
Priority to JP2002327381A priority Critical patent/JP4066163B2/en
Publication of JP2004162558A publication Critical patent/JP2004162558A/en
Application granted granted Critical
Publication of JP4066163B2 publication Critical patent/JP4066163B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertical shaft pump allowing easy disassembling and assembling of a sliding member by taking out only the sliding member without taking a main shaft and the whole of an impeller out of the pump when disassembling and assembling the sliding member having a high frequency of wear or partial damage. <P>SOLUTION: This vertical shaft pump is provided with the main shaft 10, a bearing 28 for rotatably bearing the main shaft 10, the sliding member 30 mounted on the main shaft 10 to face the bearing 28, the impeller 12 mounted on the main shaft 10 and a guide casing 14 for storing the impeller 12 therein. In the sliding member 30, a tool mounting part 30a located on an upper side of a rear flow end of a boss part 24 of the guide casing 14 is provided. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、立軸ポンプに係り、特にケーシングの内部に作業員が入ることができるほどの大型の立軸軸流・斜流ポンプに関するものである。
【0002】
【従来の技術】
作業員がケーシングの内部空間に入って作業ができるほどの大型立軸ポンプにおいて、長期の運転後、摩耗や破損により分解及び組立を必要とする部材は、水中軸受や羽根車、主軸、主軸に取り付けられた軸受摺動部材などである。従来、これらの部材のうち、主軸に取り付けられた軸受摺動部材をポンプ内部から取り出して、これを修理した後、再度組み立てる場合には、軸受摺動部材自体が人力では持ち上げられない重量である理由も加わって、主軸全体又は羽根車全体をポンプ床面あるいは最上階のモータが設置された床まで吊り上げた後、主軸に取り付けられた軸受摺動部材を分解し、再度組み立てを行う必要があった。
【0003】
また、主軸や羽根車全体を吊り上げる場合には、ポンプ上部に設置されたモータを取り外した後、ポンプのケーシングカバー等を取り外し、ポンプ内部から主軸や羽根車全体を取り出す必要がある。しかしながら、主軸や羽根車の重量を考えると、人力のみで主軸や羽根車をポンプ内部から取り出すことは不可能であり、天井クレーンやヤードクレーンといった大掛かりな装置が必要となる。
【0004】
【発明が解決しようとする課題】
本発明は、このような従来技術の問題点に鑑みてなされたもので、摩耗や部分的に破損する頻度が高い摺動部材の分解及び組立を行う場合において、主軸や羽根車全体をポンプ内部から取り出すことなく、摺動部材のみを取り出して容易にその分解及び組立を行うことができる立軸ポンプを提供することを目的とする。
【0005】
【課題を解決するための手段】
このような従来技術における問題点を解決するために、本発明の一態様は、主軸と、上記主軸を回転自在に支承する軸受と、上記軸受に対向するように上記主軸に取り付けられた摺動部材と、上記主軸に取り付けられた羽根車と、上記羽根車を内部に収容するガイドケーシングとを備えた立軸ポンプにおいて、上記摺動部材には、上記ガイドケーシングのボス部の後流端よりも上方に位置する治具取付部を設けたことを特徴とする立軸ポンプである。
【0006】
作業員がその内部にまで入って簡単な作業ができるほどの大型ポンプにおいては、吸込水位がガイドケーシングの後流端より低い場合には、作業員がその中に入って、水面から出ているボルトを取り外したり、摺動部材に治具を取り付けたり簡単な作業を行うことができる。本発明によれば、摺動部材の上方に位置する部材を取り外した後、ポンプの内部に作業員が入って、摺動部材の治具取付部に例えば吊り上げ治具を装着し、摺動部材を主軸の軸方向に移動させることによってこの摺動部材を取り出すことができる。すなわち、本発明によれば、主軸をポンプの内部から取り出すことなくそのままの状態で、主軸に取り付けられた摺動部材を分解及び再組立できるようになり、摺動部材の修理が極めて簡単になる。
【0007】
本発明の好ましい一態様は、上記主軸と該主軸を回転させるモータの出力軸とを連結する軸継手の軸方向長さを上記摺動部材の軸方向長さよりも長くしたことを特徴としている。このように、軸継手の軸方向長さを摺動部材の軸方向長さよりも長くすれば、軸継手を取り外すことによってできた空間内で、摺動部材を主軸の軸端から取り外すことが可能となる。
【0008】
この場合において、上記摺動部材の上方に位置する部材は、周方向に分割可能な構造又は軸方向に抜き出せる構造を有することが好ましい。
【0009】
【発明の実施の形態】
以下、本発明に係る立軸ポンプの実施形態について図1乃至図3を参照して詳細に説明する。なお、図1乃至図3において、同一又は相当する構成要素には、同一の符号を付して重複した説明を省略する。
【0010】
図1は本発明の一実施形態における立軸ポンプの全体構成を示す縦断面図、図2は図1の部分拡大図である。図1に示すように、本実施形態における立軸ポンプは、主軸10と、主軸10の下端に取り付けられた羽根車12と、羽根車12を収容するガイドケーシング14とを備えている。
【0011】
主軸10の上部には、封水部材としてのスタフィングボックス16が設置されており、このスタフィングボックス16の内部には、主軸を回転自在に支承する上部軸受18が収容されている。また、主軸10の上端にはフランジ軸継手20が取り付けられており、このフランジ軸継手20の上部はスペーサ軸継手22に連結されている。このスペーサ軸継手22は、ポンプ床面Fに設置されたモータ(図示せず)の出力軸に連結されており、スペーサ軸継手22及びフランジ軸継手20を介してモータの出力軸の回転が主軸10に伝達されるようになっている。
【0012】
ガイドケーシング14は内周側にボス部24を有しており、図2に示すように、このボス部24の内周側に配置された軸受ケース26の端部には、主軸10を回転自在に支承する下部水中軸受28が設けられている。主軸10には、この軸受28に対向するように摺動部材30が取り付けられている。この摺動部材30は、キー32により主軸10の回転方向に対して固定されているが、軸方向に対しては移動自在となっている。
【0013】
図2に示すように、摺動部材30は、ガイドケーシング14のボス部24の後流端(すなわち軸受ケース26の後流端26a)から上方に突出しており、摺動部材30の上端部はボス部24の後流端よりも上方に位置している。この摺動部材30の上端部には、吊り上げ治具などを取り付けるための治具取付部30aが設けられており、例えば治具取付部30aに形成された孔30bに吊り上げ治具などを装着できようになっている。
【0014】
また、図1に示すように、ガイドケーシング14のボス部24の後流側には、周方向に2つに分割することができる2つ割のキャップ34が設けられている。これらの2つ割のキャップ34は、外部から容易に外すことができるボルト(図示せず)により結合されており、このボルトを外すことにより2つ割のキャップ34を2つに分離することができる。また、スタフィングボックス16も、上記キャップ34と同様に、周方向に2つに分割することができる2つ割の構造を有している。このスタフィングボックス16が取り付けられる取付座36には、摺動部材30が通過できる大きさの開口36aが形成されている。このように、摺動部材30の上方に位置する部材(例えば、スタフィングボックス16、キャップ34)は、周方向に分割可能な構造(例えば2つ割構造)とするか、あるいは、軸方向上方に抜き出せる構造とするのが好ましい。
【0015】
次に、上述の構成の立軸ポンプにおいて、摺動部材30をポンプ内から取り出すときの作業について説明する。まず、ポンプ床面Fにおいて、スペーサ軸継手22を取り外した後、主軸10に連結されたフランジ軸継手20を取り外す。そして、2つ割のスタフィングボックス16を取り外す。
【0016】
この状態で、作業員がガイドケーシング14の内部に入り、2つ割のキャップ34を結合しているボルトを外し、キャップ34を取り外す。これにより、摺動部材30の上端部の治具取付部30aがガイドケーシング14のボス部24から上方に露出する。そして、主軸10に摺動部材30を固定している2つ割リング(図示せず)を取り外し、摺動部材30の上端部の治具取付部30aに吊り上げ治具を取り付ける。
【0017】
次に、ポンプ床面F上に設置した吊り上げ機(図示せず)からワイヤロープを下ろし、摺動部材30の治具取付部30aに取り付けた吊り上げ治具にワイヤロープを掛け、吊り上げ機を駆動して摺動部材30を上方に吊り上げる。摺動部材30は、主軸10に沿って吊り上げられ、スタフィングボックス16の取付座36に形成された開口36aを通過して主軸10の軸端から取り外される。ここで、スペーサ軸継手22の軸方向長さは、吊り上げ治具を装着した摺動部材30の軸方向長さよりも長くすることが好ましく、スペーサ軸継手22の軸方向長さを摺動部材30の軸方向長さよりも長くすれば、スペーサ軸継手22を取り外すことによってできた空間内で、摺動部材30を主軸10の軸端から取り外すことが可能となる。
【0018】
このように、本発明によれば、ポンプの主軸10の上部にあるスペーサ軸継手22などを取り外すだけで、水中にある主軸10を分解せずにそのままにした状態で、主軸10に取り付けられた摺動部材30を分解及び再組立できるようになり、摺動部材30の修理が極めて簡単になる。
【0019】
上述の実施形態においては、摺動部材30を主軸10の軸方向に対して移動自在とした例を説明したが、図3に示すように、摺動部材30の上方に固定部材(例えばナット)40を設け、この固定部材40により摺動部材30を軸方向に固定してもよい。この場合においても、固定部材40は、周方向に分割可能な構造(例えば2つ割構造)とするか、あるいは、軸方向上方に抜き出せる構造とするのが好ましい。
【0020】
これまで本発明の一実施形態について説明したが、本発明は上述の実施形態に限定されず、その技術的思想の範囲内において種々異なる形態にて実施されてよいことは言うまでもない。
【0021】
【発明の効果】
上述したように、本発明によれば、主軸をポンプの内部から取り出すことなくそのままの状態で、主軸に取り付けられた摺動部材を分解及び再組立できるようになり、摺動部材の修理が極めて簡単になる。
【図面の簡単な説明】
【図1】本発明の一実施形態における立軸ポンプの全体構成を示す縦断面図である。
【図2】図1の立軸ポンプの摺動部材近傍の部分拡大図である。
【図3】本発明の他の実施形態における立軸ポンプの摺動部材近傍の部分拡大図である。
【符号の説明】
10 主軸
12 羽根車
14 ガイドケーシング
16 スタフィングボックス
18,28 軸受
20 フランジ軸継手
22 スペーサ軸継手
24 ボス部
26 軸受ケース
30 摺動部材
30a 治具取付部
32 キー
34 キャップ
36 取付座
36a 開口
40 固定部材
F ポンプ床面
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vertical shaft pump, and more particularly to a vertical shaft / diagonal flow pump large enough to allow a worker to enter a casing.
[0002]
[Prior art]
For large vertical pumps that allow workers to enter the internal space of the casing and work, components that need to be disassembled and assembled due to wear or damage after long-term operation are attached to submerged bearings, impellers, spindles, and spindles. Bearing sliding member. Conventionally, among these members, when the bearing sliding member attached to the main shaft is taken out of the pump, repaired, and then reassembled, the weight of the bearing sliding member itself cannot be lifted by human power. For some reason, it is necessary to lift the entire main shaft or impeller to the pump floor or the top floor where the motor is installed, disassemble the bearing sliding member attached to the main shaft, and reassemble. Was.
[0003]
In addition, when hoisting the entire main shaft and the impeller, it is necessary to remove the motor installed above the pump, remove the casing cover of the pump, and take out the entire main shaft and the impeller from inside the pump. However, considering the weight of the main shaft and the impeller, it is impossible to remove the main shaft and the impeller from the inside of the pump only by manual power, and large-scale equipment such as an overhead crane and a yard crane is required.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of such problems of the related art, and when disassembling and assembling a sliding member that is frequently worn or partially damaged, the main shaft and the entire impeller are disposed inside the pump. An object of the present invention is to provide a vertical shaft pump which can take out only a sliding member and easily disassemble and assemble it without taking it out of the pump.
[0005]
[Means for Solving the Problems]
In order to solve such a problem in the related art, one embodiment of the present invention provides a main shaft, a bearing rotatably supporting the main shaft, and a slide mounted on the main shaft so as to face the bearing. In a vertical shaft pump including a member, an impeller attached to the main shaft, and a guide casing accommodating the impeller therein, the sliding member includes a boss portion of the guide casing that is located at a downstream end of the boss portion. A vertical pump provided with a jig mounting portion located above.
[0006]
In a large pump that allows workers to enter the inside and perform simple work, if the suction water level is lower than the downstream end of the guide casing, the worker will enter and exit the water surface Simple operations such as removing bolts and attaching jigs to sliding members can be performed. According to the present invention, after removing the member located above the sliding member, an operator enters the inside of the pump, and attaches, for example, a lifting jig to the jig mounting portion of the sliding member, and The sliding member can be taken out by moving the sliding member in the axial direction of the main shaft. That is, according to the present invention, the sliding member attached to the main shaft can be disassembled and reassembled without removing the main shaft from the inside of the pump, and the repair of the sliding member becomes extremely simple. .
[0007]
In a preferred aspect of the present invention, an axial length of a shaft coupling connecting the main shaft and an output shaft of a motor for rotating the main shaft is longer than an axial length of the sliding member. Thus, if the axial length of the shaft coupling is longer than the axial length of the sliding member, the sliding member can be removed from the shaft end of the main shaft in the space created by removing the shaft coupling. It becomes.
[0008]
In this case, the member located above the sliding member preferably has a structure that can be divided in the circumferential direction or a structure that can be extracted in the axial direction.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a vertical pump according to the present invention will be described in detail with reference to FIGS. In FIGS. 1 to 3, the same or corresponding components are denoted by the same reference numerals, and redundant description will be omitted.
[0010]
FIG. 1 is a longitudinal sectional view showing the overall configuration of a vertical pump according to an embodiment of the present invention, and FIG. 2 is a partially enlarged view of FIG. As shown in FIG. 1, the vertical pump according to the present embodiment includes a main shaft 10, an impeller 12 attached to a lower end of the main shaft 10, and a guide casing 14 that houses the impeller 12.
[0011]
A stuffing box 16 as a water-sealing member is installed above the main shaft 10, and an upper bearing 18 that rotatably supports the main shaft is housed inside the stuffing box 16. A flange joint 20 is attached to an upper end of the main shaft 10, and an upper portion of the flange joint 20 is connected to a spacer joint 22. The spacer shaft coupling 22 is connected to the output shaft of a motor (not shown) installed on the pump floor F, and the rotation of the output shaft of the motor is controlled by the main shaft via the spacer shaft coupling 22 and the flange shaft coupling 20. 10.
[0012]
The guide casing 14 has a boss 24 on the inner peripheral side. As shown in FIG. 2, the main shaft 10 is rotatable at an end of a bearing case 26 arranged on the inner peripheral side of the boss 24. Is provided with a lower underwater bearing 28. A sliding member 30 is attached to the main shaft 10 so as to face the bearing 28. The sliding member 30 is fixed in the rotational direction of the main shaft 10 by a key 32, but is movable in the axial direction.
[0013]
As shown in FIG. 2, the sliding member 30 protrudes upward from the downstream end of the boss 24 of the guide casing 14 (that is, the downstream end 26 a of the bearing case 26). The boss 24 is located above the downstream end. A jig mounting portion 30a for mounting a lifting jig or the like is provided at an upper end portion of the sliding member 30. For example, a lifting jig can be mounted in a hole 30b formed in the jig mounting portion 30a. It has become.
[0014]
Further, as shown in FIG. 1, on the downstream side of the boss portion 24 of the guide casing 14, a split cap 34 that can be divided into two in the circumferential direction is provided. These two caps 34 are connected by bolts (not shown) that can be easily removed from the outside. By removing the bolts, the two caps 34 can be separated from each other. it can. The stuffing box 16 also has a split structure that can be divided into two in the circumferential direction, similarly to the cap 34 described above. The mounting seat 36 to which the stuffing box 16 is mounted has an opening 36a large enough to allow the sliding member 30 to pass through. As described above, the members (for example, the stuffing box 16 and the cap 34) located above the sliding member 30 have a structure (for example, a split structure) that can be divided in the circumferential direction, or have a structure that is axially upward. It is preferable to adopt a structure that can be extracted to
[0015]
Next, the operation of removing the sliding member 30 from the inside of the vertical shaft pump having the above configuration will be described. First, on the pump floor F, after removing the spacer shaft coupling 22, the flange shaft coupling 20 connected to the main shaft 10 is removed. Then, the two stuffing boxes 16 are removed.
[0016]
In this state, the worker enters the inside of the guide casing 14, removes the bolt connecting the two caps 34, and removes the cap 34. Thereby, the jig mounting portion 30 a at the upper end of the sliding member 30 is exposed upward from the boss 24 of the guide casing 14. Then, a split ring (not shown) fixing the sliding member 30 to the main shaft 10 is removed, and a lifting jig is mounted on the jig mounting portion 30a at the upper end of the sliding member 30.
[0017]
Next, the wire rope is lowered from a hoisting machine (not shown) installed on the pump floor F, and the hoisting jig attached to the jig mounting portion 30a of the sliding member 30 is hung to drive the hoisting machine. Then, the sliding member 30 is lifted upward. The sliding member 30 is lifted along the main shaft 10, passes through an opening 36 a formed in the mounting seat 36 of the stuffing box 16, and is removed from the shaft end of the main shaft 10. Here, the axial length of the spacer joint 22 is preferably longer than the axial length of the sliding member 30 to which the lifting jig is mounted. If the length is longer than the axial length, the sliding member 30 can be removed from the shaft end of the main shaft 10 in the space formed by removing the spacer shaft coupling 22.
[0018]
As described above, according to the present invention, the pump 10 was attached to the main shaft 10 in a state where the main shaft 10 in the water was not disassembled by simply removing the spacer coupling 22 and the like at the upper portion of the main shaft 10 of the pump. The sliding member 30 can be disassembled and reassembled, so that the repair of the sliding member 30 is greatly simplified.
[0019]
In the above-described embodiment, an example in which the sliding member 30 is movable in the axial direction of the main shaft 10 has been described. However, as shown in FIG. 3, a fixing member (for example, a nut) is provided above the sliding member 30. The sliding member 30 may be fixed in the axial direction by the fixing member 40. Also in this case, it is preferable that the fixing member 40 has a structure that can be divided in the circumferential direction (for example, a two-piece structure) or a structure that can be extracted upward in the axial direction.
[0020]
Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and it goes without saying that the present invention may be embodied in various forms within the scope of the technical idea.
[0021]
【The invention's effect】
As described above, according to the present invention, the sliding member attached to the main shaft can be disassembled and reassembled without removing the main shaft from the inside of the pump. It's easy.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing the entire configuration of a vertical pump according to an embodiment of the present invention.
FIG. 2 is a partially enlarged view of the vicinity of a sliding member of the vertical shaft pump of FIG.
FIG. 3 is a partially enlarged view of the vicinity of a sliding member of a vertical shaft pump according to another embodiment of the present invention.
[Explanation of symbols]
Reference Signs List 10 Main shaft 12 Impeller 14 Guide casing 16 Stuffing box 18, 28 Bearing 20 Flange shaft coupling 22 Spacer shaft coupling 24 Boss 26 Bearing case 30 Sliding member 30a Jig mounting part 32 Key 34 Cap 36 Mounting seat 36a Opening 40 Fixed Material F Pump floor

Claims (3)

主軸と、前記主軸を回転自在に支承する軸受と、前記軸受に対向するように前記主軸に取り付けられた摺動部材と、前記主軸に取り付けられた羽根車と、前記羽根車を内部に収容するガイドケーシングとを備えた立軸ポンプにおいて、
前記摺動部材には、前記ガイドケーシングのボス部の後流端よりも上方に位置する治具取付部を設けたことを特徴とする立軸ポンプ。
A main shaft, a bearing rotatably supporting the main shaft, a sliding member mounted on the main shaft so as to face the bearing, an impeller mounted on the main shaft, and the impeller housed therein. In a vertical shaft pump having a guide casing,
A vertical shaft pump, wherein the sliding member is provided with a jig mounting portion located above a downstream end of a boss portion of the guide casing.
前記主軸と該主軸を回転させるモータの出力軸とを連結する軸継手の軸方向長さを前記摺動部材の軸方向長さよりも長くしたことを特徴とする請求項1に記載の立軸ポンプ。The vertical shaft pump according to claim 1, wherein an axial length of a shaft coupling that connects the main shaft and an output shaft of a motor that rotates the main shaft is longer than an axial length of the sliding member. 前記摺動部材の上方に位置する部材は、周方向に分割可能な構造又は軸方向に抜き出せる構造を有することを特徴とする請求項1又は2に記載の立軸ポンプ。The vertical shaft pump according to claim 1, wherein the member located above the sliding member has a structure that can be divided in a circumferential direction or a structure that can be extracted in an axial direction.
JP2002327381A 2002-11-11 2002-11-11 Vertical shaft pump Expired - Fee Related JP4066163B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002327381A JP4066163B2 (en) 2002-11-11 2002-11-11 Vertical shaft pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002327381A JP4066163B2 (en) 2002-11-11 2002-11-11 Vertical shaft pump

Publications (2)

Publication Number Publication Date
JP2004162558A true JP2004162558A (en) 2004-06-10
JP4066163B2 JP4066163B2 (en) 2008-03-26

Family

ID=32806043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002327381A Expired - Fee Related JP4066163B2 (en) 2002-11-11 2002-11-11 Vertical shaft pump

Country Status (1)

Country Link
JP (1) JP4066163B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010242564A (en) * 2009-04-03 2010-10-28 Dmw Corp Vertical shaft pump
JP2016133098A (en) * 2015-01-22 2016-07-25 株式会社荏原製作所 Vertical-shaft pump
JP2019023473A (en) * 2018-10-15 2019-02-14 株式会社荏原製作所 Drainage pump machine field, pump management method, and pump management system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010242564A (en) * 2009-04-03 2010-10-28 Dmw Corp Vertical shaft pump
JP2016133098A (en) * 2015-01-22 2016-07-25 株式会社荏原製作所 Vertical-shaft pump
JP2019023473A (en) * 2018-10-15 2019-02-14 株式会社荏原製作所 Drainage pump machine field, pump management method, and pump management system

Also Published As

Publication number Publication date
JP4066163B2 (en) 2008-03-26

Similar Documents

Publication Publication Date Title
KR20060093559A (en) Disassemble examination and repair method and apparatus for motor
JP4066163B2 (en) Vertical shaft pump
CN100549427C (en) The installation method of large-scale electric underwater pump
JP5222186B2 (en) Tubular pump and bearing replacement method for horizontal-axis cylindrical hydraulic machine
CN210461083U (en) Ultra-light hydraulic submersible axial-flow pump
KR100229199B1 (en) Hydrodynamic machine
KR100939888B1 (en) A jig for assembling hydraulic coupling in electric furnace
JP6063668B2 (en) pump
JPS6327130B2 (en)
JP6948278B2 (en) Pump system with inspection corridor
JP2012184773A (en) Vertical shaft pump
JP4883965B2 (en) Vertical shaft pump
JPH0467030B2 (en)
JP5155653B2 (en) Vertical shaft pump
JP5730073B2 (en) Turbine casing structure and method for removing internal members of turbine casing
JP2012172599A (en) Inspection tool and inspection method of cantilever main shaft of impeller
JP2004036559A (en) Column-shaped pump and pump gate
CN212615623U (en) Glass fiber reinforced plastic centrifugal fan with dustproof function
CN209743250U (en) Long-shaft deep-well water pump water-raising pipe fixing device
JPS62170781A (en) Rotating part disassembling method for hydraulic machinery
JPS5836879Y2 (en) Giant beetle sofuki
JPH0727098A (en) Overhung blower
JPH0718400B2 (en) Hydroelectric generator
JPH0444879Y2 (en)
KR200224102Y1 (en) Tool for disassembling bearing

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20041020

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20071217

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20071225

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20071225

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110118

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 4066163

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110118

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120118

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120118

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130118

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130118

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140118

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees