JP4883564B2 - How to measure pump base levelness - Google Patents
How to measure pump base levelness Download PDFInfo
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- JP4883564B2 JP4883564B2 JP2006179353A JP2006179353A JP4883564B2 JP 4883564 B2 JP4883564 B2 JP 4883564B2 JP 2006179353 A JP2006179353 A JP 2006179353A JP 2006179353 A JP2006179353 A JP 2006179353A JP 4883564 B2 JP4883564 B2 JP 4883564B2
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- 238000003780 insertion Methods 0.000 claims description 70
- 230000037431 insertion Effects 0.000 claims description 70
- 238000005259 measurement Methods 0.000 claims description 65
- 239000000725 suspension Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 20
- 238000000691 measurement method Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Description
本発明は、立軸ポンプが設置されるポンプベースの取付面の水平度を測定する方法に関するものである。 The present invention relates to a method for measuring the level of a mounting surface of a pump base on which a vertical shaft pump is installed.
立軸ポンプの設置構造を、図６および図７を参照して簡単に説明する。図６は、立軸ポンプの全体の構成図である。図７は、図６のＡ−Ａ断面矢視拡大図である。図６および図７において、吸込水槽４１の上方に配設されたポンプ設置床４２にポンプ設置孔４３が設けられ、このポンプ設置孔４３を囲んでポンプベース４４がポンプ設置床４２に設けられたモルタル層４５にアンカーボルト４６、４６…で固定される。そして、このポンプベース４４に、立軸ポンプ６０の吊り下げ管４７のフランジ部４８がボルト７１、７１…でボルト接合されて固定されている。吊り下げ管４７の下方には、揚水管４９とポンプケーシング５０およびベルマウス５１が順次に連結されて、吸込水槽４１内の水面下に吊り下げられている。また、吊り下げ管４７の上方には、吐出エルボ５２の下端のフランジ部５３がボルト７２、７２…でボルト接合されて固定され、その他端側に吐出管５４がフランジ接合により適宜に連結される。さらに、吐出エルボ５２には、回転軸５５が外壁を貫通して、垂直に吊り下げ管４７の軸芯位置に回転自在に配設される。この回転軸５５の下端部には図示しない羽根車が配設され、上端部は軸継手５６、５７を介して図示しない減速装置の出力軸５８に駆動連結される。減速装置が、駆動装置に連結されることは勿論である。 The installation structure of the vertical shaft pump will be briefly described with reference to FIGS. FIG. 6 is an overall configuration diagram of the vertical shaft pump. FIG. 7 is an AA cross-sectional enlarged view of FIG. 6 and 7, a pump installation hole 43 is provided in the pump installation floor 42 disposed above the suction water tank 41, and a pump base 44 is provided in the pump installation floor 42 so as to surround the pump installation hole 43. It is fixed to the mortar layer 45 with anchor bolts 46, 46. The flange portion 48 of the suspension pipe 47 of the vertical shaft pump 60 is bolted to the pump base 44 with bolts 71, 71. Below the suspension pipe 47, a pumping pipe 49, a pump casing 50, and a bell mouth 51 are sequentially connected and suspended below the water surface in the suction water tank 41. Further, a flange portion 53 at the lower end of the discharge elbow 52 is fixed by bolting with bolts 72, 72... Above the suspension pipe 47, and the discharge pipe 54 is appropriately connected to the other end side by flange bonding. . Further, the discharge elbow 52 is provided with a rotation shaft 55 penetrating the outer wall and vertically arranged at the axial center position of the suspension pipe 47. An impeller (not shown) is disposed at the lower end portion of the rotating shaft 55, and the upper end portion is drivingly connected to an output shaft 58 of a reduction gear (not shown) via shaft couplings 56 and 57. Of course, the reduction gear is connected to the drive device.
かかる構成の立軸ポンプ６０にあっては、騒音や振動を生じさせないためには、回転軸５５の軸芯がずれたりぶれたりすることなしに、垂直方向に一直線状に配設されることが重要である。そこで、立軸ポンプ６０を設置する際には、吊り下げ管４７が設置されるポンプベース４４の取付面の水平度を測定し、水平度が許容基準から外れている場合には、取付面上にシム等の調整部材を入れて、吊り下げ管４７のフランジ部４８が水平に取り付けられて、回転軸５５の軸芯が垂直となるように適正に据え付けられなければならない。 In the vertical shaft pump 60 having such a configuration, in order not to generate noise and vibration, it is important that the vertical shaft is arranged in a straight line without causing the shaft center of the rotating shaft 55 to be displaced or shaken. It is. Therefore, when installing the vertical shaft pump 60, the level of the mounting surface of the pump base 44 on which the suspension pipe 47 is installed is measured. An adjusting member such as a shim is inserted, and the flange portion 48 of the suspension pipe 47 is attached horizontally, and must be properly installed so that the axis of the rotary shaft 55 is vertical.
そして、立軸ポンプ６０のオーバーホールの際には、吐出エルボ５２や吊り下げ管４７や揚水管４９やポンプケーシング５０およびベルマウス５１が取り外されて分解され、それぞれ必要な補修がなされる。それらの補修が完了して再び立軸ポンプ６０を組み立て据え付ける際には、ポンプベース４４の取付面の水平度が測定され、吊り下げ管４７のフランジ部４８が水平となるように調整されて組み立てられる。ここで、シム等ではフランジ部４８の水平度が十分に調整できない場合には、ポンプベース４４をモルタル層４５からはつり出して工場に搬送し、工場にて水平度が得られるように切削加工がなされた後に、再び据え付け現場に搬送されて取り付けられる。 When the vertical shaft pump 60 is overhauled, the discharge elbow 52, the suspension pipe 47, the pumping pipe 49, the pump casing 50, and the bell mouth 51 are removed and disassembled, and necessary repairs are performed. When the vertical pump 60 is assembled and installed again after the repairs are completed, the level of the mounting surface of the pump base 44 is measured, and the flange portion 48 of the suspension pipe 47 is adjusted to be horizontal and assembled. . Here, when the level of the flange portion 48 cannot be sufficiently adjusted with shims or the like, the pump base 44 is lifted from the mortar layer 45 and transported to the factory, and cutting is performed so that the level is obtained at the factory. After being done, it is transported and installed again at the installation site.
立軸ポンプ６０にあっては、ポンプベース４４に吊り下げ管４７のフランジ部４８がボルト接合されて配設固定されている状態にあっては、ポンプベース４４の取付面が吊り下げ管４７のフランジ部４８で覆われており、その水平度を測定することができない。そこで、吊り下げ管４７が取り外されるオーバーホールを待って、ポンプベース４４の取付面の水平度の測定がなされていた。 In the vertical shaft pump 60, when the flange portion 48 of the suspension pipe 47 is bolted and fixed to the pump base 44, the mounting surface of the pump base 44 is the flange of the suspension pipe 47. It is covered with the part 48, and the levelness cannot be measured. Therefore, the level of the mounting surface of the pump base 44 is measured after an overhaul in which the suspension pipe 47 is removed.
しかるに、地震等によってポンプ建屋等の土木構造物に傾きが生じた虞がある場合には、直ちにポンプベース４４の水平度の測定が必要である。なぜならば、立軸ポンプ６０の回転軸５５の軸芯がずれた状態で長期間運転すると、振動や騒音が著しくなるだけでなく、軸継手５６、５７および図示しない軸受け等に過大な負荷が加わり損傷して、運転が不可能となる重大な事態となる虞がある。そこで、ポンプベース４４から吊り下げ管４７を取り外すことなしに、ポンプベース４４の取付面の水平度を測定できることが望まれる。 However, when there is a possibility that the civil engineering structure such as the pump building is inclined due to an earthquake or the like, the level of the pump base 44 needs to be measured immediately. This is because, if the shaft of the rotary shaft 55 of the vertical shaft pump 60 is displaced for a long time, not only vibration and noise will be noticeable, but also excessive loads will be applied to the shaft couplings 56 and 57 and bearings (not shown). As a result, there is a risk of a serious situation where driving becomes impossible. Therefore, it is desirable that the level of the mounting surface of the pump base 44 can be measured without removing the suspension pipe 47 from the pump base 44.
また、オーバーホールの際にも、分解する前に予め水平度の測定が可能であれば、ポンプベース４４をモルタル層４５からはつり出して工場での切削加工が必要であるか否かを予め予測し得る。これは、オーバーホールに必要な期間や費用等をより正確に算定することが可能である。 Also, in the case of overhaul, if the levelness can be measured in advance before disassembling, the pump base 44 is lifted from the mortar layer 45 to predict in advance whether cutting at the factory is necessary. obtain. This makes it possible to more accurately calculate the period and cost required for overhaul.
ところで、横軸ポンプにあっては、回転軸の軸芯がずれることなく水平に一直線状に配設されることが重要である。そこで、回転軸の水平度を測定するための技術が、特開２００５−９１０５５号公報（特許文献１）に示されている。この技術は、回転軸を水平に支持する上下のハウジングのフランジ部の接合面の水平度を測定するようにしたものであり、上下のハウジングの接合されたフランジ部を上下から挟み込む部材が必要である。そこで、本発明のごときポンプベース４４がポンプ設置床４２に固定されている構造では、挟み込む部材を用いることができず、特許文献１記載の技術を適用することができない。
本発明は、上述したごとき事情に鑑みてなされたもので、ポンプベースの取付面を覆うフランジ部を取り外すことなしに、ポンプベースの取付面の水平度を測定できるようにしたポンプベースの水平度測定方法を提供することを目的とする。 The present invention has been made in view of the circumstances as described above, and the level of the pump base that can measure the level of the mounting surface of the pump base without removing the flange portion that covers the mounting surface of the pump base. An object is to provide a measurement method.
かかる目的を達成するために、本発明のポンプベースの水平度測定方法は、立軸ポンプの吊り下げ管のフランジ部がボルト接合されて固定されているポンプベースの水平度を測定する方法であって、前記フランジ部に穿設された複数のボルト挿通孔からボルトを取り外し、それらのボルト挿通孔に計測用部材を挿入し、複数の前記計測用部材は、その外径が前記ボルト挿通孔の内径よりも小さいとともに前記ポンプベースに螺設されたねじ孔の内径よりも大きく設定され、また前記ボルト挿通孔への挿入により下端が前記ポンプベースの上面に当接するとともに上端部が前記フランジ部よりも上方に突出するように設定され、しかも前記下端より前記上端部に設けた測定部位までの挿入方向の寸法が同じに設定され、複数の前記ボルト挿通孔にそれぞれ挿入された複数の前記計測用部材の前記測定部位の垂直方向のレベル差を計測手段で計測して、前記ポンプベースの水平度を測定する。 In order to achieve this object, the pump base leveling method of the present invention is a method for measuring the level of a pump base in which the flange portion of the suspension pipe of the vertical shaft pump is bolted and fixed. The bolts are removed from the plurality of bolt insertion holes formed in the flange portion, and measurement members are inserted into the bolt insertion holes. The plurality of measurement members have an outer diameter that is the inner diameter of the bolt insertion hole. Smaller than the inner diameter of the screw hole screwed in the pump base, and the lower end abuts on the upper surface of the pump base by insertion into the bolt insertion hole and the upper end portion is larger than the flange portion. The plurality of bolt insertion holes are set so as to protrude upward, and the dimensions in the insertion direction from the lower end to the measurement site provided at the upper end are set to be the same. The level difference in the vertical direction of the measurement site in each inserted plurality of said measurement members is measured by the measuring means to measure the levelness of the pump base.
また、立軸ポンプの吐出エルボのフランジ部がボルト接合されて固定されているポンプベースの水平度を測定する方法であって、前記フランジ部に穿設された複数のボルト挿通孔からボルトを取り外し、それらのボルト挿通孔に計測用部材を挿入し、複数の前記計測用部材は、その外径が前記ボルト挿通孔の内径よりも小さいとともに前記ポンプベースに螺設されたねじ孔の内径よりも大きく設定され、また前記ボルト挿通孔への挿入により下端が前記ポンプベースの上面に当接するとともに上端部が前記フランジ部よりも上方に突出するように設定され、しかも前記下端より前記上端部に設けた測定部位までの挿入方向の寸法が同じに設定され、複数の前記ボルト挿通孔にそれぞれ挿入された複数の前記計測用部材の前記測定部位の垂直方向のレベル差を計測手段で計測して、前記ポンプベースの水平度を測定するようにしても良い。 Further, it is a method for measuring the level of the pump base in which the flange part of the discharge elbow of the vertical shaft pump is bolted and fixed, and the bolts are removed from the plurality of bolt insertion holes formed in the flange part, A plurality of measurement members are inserted into the bolt insertion holes, and the plurality of measurement members have an outer diameter smaller than an inner diameter of the bolt insertion holes and larger than an inner diameter of a screw hole screwed to the pump base. The lower end is set to be in contact with the upper surface of the pump base by being inserted into the bolt insertion hole, and the upper end portion protrudes upward from the flange portion, and is provided at the upper end portion from the lower end. The dimension in the insertion direction to the measurement site is set to be the same, and the plurality of measurement members respectively inserted into the plurality of bolt insertion holes are perpendicular to the measurement site. The level difference is measured by the measuring means, may be measured levelness of the pump base.
そして、前記計測用部材は、前記下端を挿入方向に対して直交する平面に形成することができる。 And the said member for a measurement can form the said lower end in the plane orthogonal to an insertion direction.
さらに、前記計測用部材は、上端を挿入方向に対して直交する平面に形成して、この上端の平面を前記測定部位とすることもできる。 Furthermore, the measurement member may be formed with a top end on a plane orthogonal to the insertion direction, and the top end plane may be used as the measurement site.
そしてまた、複数の前記計測用部材の前記計測部位の垂直方向のレベル差を、Ｙレベルで計測することも可能である。 Moreover, it is also possible to measure the level difference in the vertical direction of the measurement site of the plurality of measurement members at the Y level.
そしてさらに、前記計測用部材の前記計測部位を、ストレートエッジを裁置できるように形成し、２つの前記ボルト挿通孔にそれぞれ挿入した２つの前記計測用部材の前記計測部位に渡して前記ストレートエッジを架設し、この架設された前記ストレートエッジの水平度を水準器で計測することも可能である。 Further, the measurement part of the measurement member is formed so that a straight edge can be placed, and the straight edge is passed to the measurement parts of the two measurement members respectively inserted into the two bolt insertion holes. It is also possible to measure the level of the installed straight edge with a level.
請求項１および２記載のいずれのポンプベースの水平度測定方法にあっても、ポンプベースに吊り下げ管または吐出管のフランジ部をボルト接合した状態で、数本のボルトを取り外し、そのボルト挿通孔に計測用部材を挿入してその下端をポンプベースの上面に当接させるので、これらのボルト挿通孔に挿入された計測用部材の垂直方向のレベル差を測定すれば、ポンプベースの取付面の水平度を測定することができる。 In the pump base leveling measurement method according to any one of claims 1 and 2, several bolts are removed in a state where the suspension pipe or the flange portion of the discharge pipe is bolted to the pump base, and the bolt is inserted. Since the measurement member is inserted into the hole and the lower end thereof is brought into contact with the upper surface of the pump base, if the vertical level difference of the measurement member inserted into these bolt insertion holes is measured, the mounting surface of the pump base Can be measured.
請求項３記載のポンプベースの水平度測定方法にあっては、計測用部材の下端を挿入方向に対して直交する平面に形成したので、計測用部材がボルト挿通孔の壁に寄りかかって挿入されるようなことがなく、ポンプベースの取付面に対して直交する方向に自立した状態に裁置され、ボルト挿通孔に挿入された複数の計測用部材の垂直方向のレベル差を計測することで、ポンプベースの取付面の水平度を確実に測定できる。 In the pump base leveling measurement method according to claim 3, since the lower end of the measurement member is formed in a plane perpendicular to the insertion direction, the measurement member is inserted against the wall of the bolt insertion hole. Measure the vertical level difference between multiple measuring members placed in the bolt insertion hole, placed in a self-standing state in a direction perpendicular to the mounting surface of the pump base. Thus, the level of the mounting surface of the pump base can be reliably measured.
請求項４記載のポンプベースの水平度測定方法にあっては、計測用部材の上端を挿入方向に対して直交する平面に形成し、この平面をを計測部位としたので、ボルト挿通孔に挿入された複数の計測用部材の上端の平面の垂直方向のレベル差を測定することで、ポンプベースの取付面の水平度を確実に測定できる。 In the pump base leveling measurement method according to claim 4, the upper end of the measurement member is formed in a plane orthogonal to the insertion direction, and this plane is used as a measurement site, so that it is inserted into the bolt insertion hole. By measuring the vertical level difference between the top surfaces of the plurality of measuring members, the level of the mounting surface of the pump base can be reliably measured.
請求項５記載のポンプベースの水平度測定方法にあっては、ボルト挿通孔に挿入された複数の計測用部材の測定部位の垂直方向のレベル差を、Ｙレベルで測定することで、容易にポンプベースの取付面の水平度を測定できる。 In the method for measuring the degree of horizontality of the pump base according to claim 5, it is easy to measure the vertical level difference of the measurement parts of the plurality of measurement members inserted into the bolt insertion holes at the Y level. The level of the mounting surface of the pump base can be measured.
請求項６記載のポンプベースの水平度測定方法にあっては、計測用部材にストレートエッジを裁置できる計測部位を形成し、２つの計測用部材の計測部位に渡してストレートエッジを架設し、このストレートエッジ上に水準器を裁置するなどして、２つの計測用部材が挿入されたボルト挿通孔に臨むポンプベースの取付面の水平度が測定できる。そこで、複数箇所でそれぞれに水平度を測定すれば、ポンプベースの取付面の全体の水平度を測定できる。 In the pump base leveling measurement method according to claim 6, a measurement part where the straight edge can be placed on the measurement member is formed, the straight edge is installed across the measurement part of the two measurement members, The level of the mounting surface of the pump base facing the bolt insertion hole into which the two measuring members are inserted can be measured by placing a level on the straight edge. Therefore, if the level is measured at each of a plurality of locations, the overall level of the mounting surface of the pump base can be measured.
以下、本発明の第１実施例を図１ないし図４を参照して説明する。図１は、本発明のポンプベースの水平度測定方法で用いる計測用部材の外観図であり、（ａ）は正面図であり、（ｂ）は底面図である。図２は、ポンプベースに螺設されたねじ孔と吊り下げ管のフランジ部に穿設されたボルト挿通孔の断面図である。図３は、ストレートエッジと水準器を用いて水平度を測定する方法を説明する平面図である。図４は、図３のＢ−Ｂ断面矢視図である。図１ないし図４において、図６および図７に示すものと同じまたは均等な部材には同じ符号を付けて重複する説明を省略する。 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an external view of a measuring member used in the pump base leveling measurement method of the present invention, (a) is a front view, and (b) is a bottom view. FIG. 2 is a cross-sectional view of a screw hole screwed in the pump base and a bolt insertion hole drilled in the flange portion of the suspension pipe. FIG. 3 is a plan view for explaining a method of measuring the level using a straight edge and a level. 4 is a cross-sectional view taken along the line BB in FIG. 1 to 4, the same or equivalent members as those shown in FIG. 6 and FIG.
まず、本発明のポンプベースの水平度測定方法で用いる計測用部材４は、挿入部５と天部６とからなる。挿入部５は、吊り下げ管４７のフランジ部４８に穿設したボルト挿通孔１の径Ｄ１よりも僅かに小さいとともにポンプベース４４に螺設されたねじ孔２の内径Ｄ２よりも大きな外径Ｄ３を有する円柱形である。そして、挿入部５の下端は、円柱形の軸芯に対して、すなわち挿入方向に対して直交する平面７に形成される。また、挿入部５の挿入方向の長さが吊り下げ管４７のフランジ部４８の厚さよりも大きく設定される。天部６は、挿入部５より大きな外径でその上端が計測部位として挿入方向に対して直交する平面８に形成されている。なお、複数の計測用部材４、４…は、それぞれに物理的には全く同じ形状寸法に形成される。 First, the measuring member 4 used in the pump-based levelness measuring method of the present invention includes an insertion portion 5 and a top portion 6. The insertion portion 5 has an outer diameter D3 that is slightly smaller than the diameter D1 of the bolt insertion hole 1 formed in the flange portion 48 of the suspension pipe 47 and larger than the inner diameter D2 of the screw hole 2 screwed into the pump base 44. A cylindrical shape having And the lower end of the insertion part 5 is formed in the plane 7 orthogonal to a column-shaped axial core, ie, an insertion direction. Further, the length of the insertion portion 5 in the insertion direction is set to be larger than the thickness of the flange portion 48 of the suspension pipe 47. The top portion 6 has an outer diameter larger than that of the insertion portion 5 and an upper end thereof is formed as a measurement site on a plane 8 orthogonal to the insertion direction. The plurality of measurement members 4, 4... Are formed in the same physical dimensions.
そして、ポンプベース４４に吊り下げ管４７のフランジ部４８がボルト接合された状態で、ボルト接合している２本のボルト７１、７１を取り外し、代わりにボルト挿通孔１、１にそれぞれ計測用部材４、４の挿入部５、５を挿入する。すると、計測用部材４、４の下端の平面７、７がねじ孔２、２の周縁部で段差状に露出するポンプベース４４の取付面に当接した状態となる。さらに、ボルト挿通孔１、１に挿入された２つ計測用部材４、４の上端の計測部位としての平面８、８に渡って、ストレートエッジ１０を裁置架設し、その上に水準器１１を裁置して、２つの計測用部材４、４の上端の平面８、８の水平度を測定する。ここで、複数の計測用部材４、４…は、それぞれに物理的には全く同じ形状寸法に形成されているので、上端の平面８、８の水平度を測定することは、下端の平面７、７が当接するポンプベース４４の取付面の水平度を測定することに等しい。かかる水平度の測定を、吊り下げ管４７の周囲で均等分割された位置にある少なくとも４箇所で、フランジ部４８からボルト７１、７１を取り外してそれぞれに水平度を測定すれば、ポンプベース４４の取付面の水平度を測定することができる。 Then, in the state where the flange portion 48 of the suspension pipe 47 is bolted to the pump base 44, the two bolts 71, 71 that are bolted are removed, and instead the measuring members are respectively inserted into the bolt insertion holes 1, 1. 4 and 4 insertion portions 5 and 5 are inserted. Then, the flat surfaces 7 and 7 at the lower ends of the measurement members 4 and 4 are in contact with the mounting surface of the pump base 44 exposed in a step shape at the peripheral edge portions of the screw holes 2 and 2. Further, a straight edge 10 is placed over the planes 8 and 8 serving as measurement parts at the upper ends of the two measuring members 4 and 4 inserted into the bolt insertion holes 1 and 1, and a level 11 is placed thereon. Is measured, and the horizontality of the planes 8 and 8 at the upper ends of the two measuring members 4 and 4 is measured. Here, since the plurality of measuring members 4, 4... Are physically formed in exactly the same shape and dimension, measuring the level of the upper planes 8 and 8 is the lower plane 7. , 7 is equivalent to measuring the levelness of the mounting surface of the pump base 44 against which it abuts. If the level of the pump base 44 is measured by removing the bolts 71 and 71 from the flange portion 48 and measuring the level at each of at least four positions that are equally divided around the suspension pipe 47, the level of the pump base 44 is measured. The level of the mounting surface can be measured.
上記説明では、２本ずつボルト７１、７１を取り外して、取り外された位置に臨むポンプベース４４の取付面の水平度を順次に測定するが、４本のボルト７１、７１…を予め取り外して、代わりにそれぞれのボルト挿通孔１、１…に測定用部材４、４…を挿入し、そのうちの２本の計測用部材４、４を用いて順次にポンプベース４４の取付面の水平度を測定しても良い。また、天部６は、平面形状をストレートエッジ１０を裁置し易いように挿入部５よりも太径としているが、かかる形状に限られない。また、平面形状は円形でなくても良い。 In the above description, the bolts 71, 71 are removed two by two, and the level of the mounting surface of the pump base 44 facing the removed position is sequentially measured, but the four bolts 71, 71,. Instead, the measurement members 4, 4... Are inserted into the respective bolt insertion holes 1, 1..., And the horizontality of the mounting surface of the pump base 44 is sequentially measured using the two measurement members 4, 4. You may do it. Moreover, although the top part 6 is made larger diameter than the insertion part 5 so that plane shape may be easy to arrange the straight edge 10, it is not restricted to this shape. The planar shape may not be circular.
次に、本発明の第２実施例を図５を参照して説明する。図５は、Ｙレベルを用いてポンプベースの水平度を測定する方法を説明する図である。図５において、図１ないし図４および図６および図７に示すものと同じまたは均等な部材には同じ符号を付けて重複する説明を省略する。 Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 5 is a diagram for explaining a method of measuring the level of the pump base using the Y level. 5, the same or equivalent members as those shown in FIGS. 1 to 4 and FIGS. 6 and 7 are denoted by the same reference numerals and redundant description is omitted.
図５に示す本発明のポンプベースの水平度測定方法の第２実施例において、計測用部材４の上端に、挿入方向で垂直に計測部位として直尺１５が立設される。そこで、複数のボルト７１、７１…を取り外して、それらのボルト挿通孔１、１…に直尺１５、１５…がそれぞれに設けられた測定用部材４、４…を挿入する。そして、ポンプ設置床４２に適宜に設置したＹレベル１６により、それぞれの計測用部材４、４…の直尺１５、１５…の垂直方向のレベル差を測定すれば良い。簡単にポンプベース４４の取付面の水平度を測定することができる。なお、この計測用部材４の上端に、挿入方向で垂直に直尺１５を配設する構造にあっては、天部６を省いて挿入部５の上端に直接に直尺１５を立設しても良い。 In the second embodiment of the pump-based leveling measurement method of the present invention shown in FIG. 5, a straight scale 15 is erected on the upper end of the measurement member 4 as a measurement site perpendicular to the insertion direction. Therefore, the plurality of bolts 71, 71... Are removed, and the measurement members 4, 4,. And the level difference of the vertical direction of each of the measuring members 4, 4 ... of the measurement scales 4, 15 ... may be measured by the Y level 16 appropriately installed on the pump installation floor 42. The levelness of the mounting surface of the pump base 44 can be easily measured. In addition, in the structure in which the straight scale 15 is disposed vertically at the upper end of the measurement member 4 in the insertion direction, the straight scale 15 is erected directly at the upper end of the insertion section 5 without the top 6. May be.
ところで、立軸ポンプ６０には、上記実施例のごとく、吊り下げ管４７のフランジ部４８がポンプベース４４にボルト接合される構造に限られず、図８に示すごとく、吐出エルボ５２のフランジ部５３が直接にポンプベース４４にボルト接合される別の構造のものもある。図８は、別の構造の立軸ポンプの全体の構成図である。 By the way, the vertical shaft pump 60 is not limited to the structure in which the flange portion 48 of the suspension pipe 47 is bolted to the pump base 44 as in the above-described embodiment, and the flange portion 53 of the discharge elbow 52 is provided as shown in FIG. There are other constructions that are bolted directly to the pump base 44. FIG. 8 is an overall configuration diagram of a vertical shaft pump having another structure.
かかる構造の立軸ポンプ６０にあっても、ポンプベース４４に吐出エルボ５２のフランジ部５３をボルト接合するボルト７２、７２…を適宜に取り外して、そこに計測用部材４、４…を挿入して、計測用部材４、４…の計測部位の水平度を測定することで、ポンプベース４４の取付面の水平度を測定することができる。計測用部材４、４…の挿入部５、５…は、吐出エルボ５２のフランジ部５３に穿設されたボルト挿通孔の径よりも僅かに小さいとともにポンプベース４４に螺設されたねじ孔２、２…の内径よりも大きな径を有する円柱形であることは、容易に理解されるであろう。 Even in the vertical shaft pump 60 having such a structure, the bolts 72, 72... That join the flange portion 53 of the discharge elbow 52 to the pump base 44 are appropriately removed, and the measurement members 4, 4,. By measuring the level of the measurement parts of the measurement members 4, 4..., The level of the mounting surface of the pump base 44 can be measured. The insertion portions 5 of the measurement members 4, 4... Are slightly smaller than the diameter of the bolt insertion holes formed in the flange portion 53 of the discharge elbow 52 and are screw holes 2 screwed into the pump base 44. It will be readily understood that it is cylindrical with a diameter greater than 2,.
なお、上記実施例にあっては、計測用部材４、４…の挿入部５、５…の下端が挿入方向に対して直交する平面７、７…であるが、かかる平面に限られず、挿入部５、５…の下端がポンプベース４４の取付面に当接するように周縁部分が挿入方向に対して直交する平面内にあれば良く、下端面の中央に凹部等が形成されていても良く、また挿入部５が円筒であっても良い。さらに、挿入部５、５…の下端の周縁部分に複数の突起を設け、それらの突起の下方先端が挿入方向に対して直交する平面内にあるようにして、ポンプベース４４のねじ孔ａの周囲の取付面上に突起の先端が当接するようにしても良い。 In addition, in the said Example, although the lower end of the insertion parts 5, 5, ... of the measurement members 4,4 ... is the planes 7, 7 ... orthogonal to an insertion direction, it is not restricted to such a plane, insertion It suffices that the peripheral edge portion is in a plane orthogonal to the insertion direction so that the lower ends of the portions 5, 5,... Further, the insertion portion 5 may be a cylinder. Further, a plurality of protrusions are provided on the peripheral edge portions of the lower ends of the insertion portions 5, 5... So that the lower ends of the protrusions are in a plane orthogonal to the insertion direction. You may make it the front-end | tip of a protrusion contact | abut on the surrounding mounting surface.
１ ボルト挿通孔
２ ねじ孔
４ 計測用部材
５ 挿入部
６ 天部
７、８ 平面
１０ ストレートエッジ
１１ 水準器
１６ Ｙレベル
４１ 吸込水槽
４２ ポンプ設置床
４３ ポンプ設置孔
４４ ポンプベース
４５ モルタル層
４６ アンカーボルト
４７ 吊り下げ管
４８、５３ フランジ部
４９ 揚水管
５０ ポンプケーシング
５１ ベルマウス
５２ 吐出エルボ
５４ 吐出管
５５ 回転軸
５６、５７ 軸継手
５８ 出力軸
６０ 立軸ポンプ
７１、７２ ボルト
DESCRIPTION OF SYMBOLS 1 Bolt insertion hole 2 Screw hole 4 Measuring member 5 Insertion part 6 Top part 7, 8 Plane 10 Straight edge 11 Level 16 Y level 41 Suction water tank 42 Pump installation floor 43 Pump installation hole 44 Pump base 45 Mortar layer 46 Anchor bolt 47 Suspension pipe 48, 53 Flange section 49 Pumping pipe 50 Pump casing 51 Bell mouth 52 Discharge elbow 54 Discharge pipe 55 Rotating shaft 56, 57 Shaft coupling 58 Output shaft 60 Vertical shaft pump 71, 72 Bolt
Claims (6)
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| JP6889094B2 (en) * | 2017-12-06 | 2021-06-18 | 株式会社荏原製作所 | Pump equipment |
| JP7394012B2 (en) * | 2020-04-21 | 2023-12-07 | 株式会社酉島製作所 | How to determine the tilt of a vertical shaft pump |
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| JPH10293023A (en) * | 1997-04-18 | 1998-11-04 | Sumitomo Forestry Co Ltd | Ruler for level surveying |
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