JP2017125450A - Vertical shaft pump - Google Patents

Vertical shaft pump Download PDF

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JP2017125450A
JP2017125450A JP2016005189A JP2016005189A JP2017125450A JP 2017125450 A JP2017125450 A JP 2017125450A JP 2016005189 A JP2016005189 A JP 2016005189A JP 2016005189 A JP2016005189 A JP 2016005189A JP 2017125450 A JP2017125450 A JP 2017125450A
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pumping pipe
vertical shaft
shaft pump
impeller
attached
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JP6646449B2 (en
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裕輔 渡邊
Hirosuke Watanabe
裕輔 渡邊
修作 香川
Shusaku Kagawa
修作 香川
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Ebara Corp
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Ebara Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a vertical shaft pump capable of enhancing stability of the entire pump by damping the self-exciting vibration of a lifting pipe.SOLUTION: A vertical shaft pump according to an embodiment of the invention includes a lifting pipe connected to a bowl storing an impeller, and a main shaft of a motor for rotating the impeller is arranged in the lifting pipe. A damping material is attached to an outer peripheral surface of the lifting pipe.SELECTED DRAWING: Figure 1

Description

本発明は、立軸ポンプに関する。   The present invention relates to a vertical shaft pump.

従来の立軸ポンプ１の外観図を図５Ａに示す。一般に、立軸ポンプ１では、ポンプ床２上にあるモータ３から、ポンプ床２下に没水している羽根車（図示せず）までの間の縦方向の長さが大きい。従って、羽根車を収容するボウル部４に接続され、羽根車を回転させるモータ３の主軸（図示せず）が配置される揚水管５は、複数の揚水管（例えば５−１、５−２、５−３）をフランジ部６を介して互いに連結させることにより形成されている。また、揚水管５に剛性を付与するため、図５Ａに示すように揚水管５の外周面に補強リブ７が形成される場合もある。図５Ｂは、図５ＡのＡ−Ａ線断面図である。尚、図５Ｂにおいて、モータ３の主軸等、揚水管５の内部に配置される要素は図示を省略されている。   An external view of a conventional vertical shaft pump 1 is shown in FIG. 5A. In general, in the vertical shaft pump 1, the length in the vertical direction from the motor 3 on the pump floor 2 to the impeller (not shown) submerged under the pump floor 2 is large. Therefore, the pumping pipe 5 connected to the bowl portion 4 that houses the impeller and on which the main shaft (not shown) of the motor 3 that rotates the impeller is arranged has a plurality of pumping pipes (for example, 5-1, 5-2). 5-3) are connected to each other via the flange portion 6. Further, in order to give rigidity to the water pumping pipe 5, as shown in FIG. 5A, reinforcing ribs 7 may be formed on the outer peripheral surface of the water pumping pipe 5. 5B is a cross-sectional view taken along line AA in FIG. 5A. In FIG. 5B, the elements such as the main shaft of the motor 3 that are arranged inside the pumped-up pipe 5 are not shown.

このような立軸ポンプ１の動作中には、時間の経過と共に振幅が増大する自励振動が生じる場合がある。そして、この自励振動は、主軸及び羽根車を含むロータ側だけでなく、ステータ側である揚水管５の影響が大きいことが分かっている。すなわち、揚水管５の減衰が小さいことが自励振動発生の要因のひとつである。   During the operation of the vertical shaft pump 1, self-excited vibration having an amplitude that increases with time may occur. The self-excited vibration is known to have a large influence not only on the rotor side including the main shaft and the impeller but also on the stator side. That is, one of the causes of the occurrence of self-excited vibration is that the damping of the pumped-up pipe 5 is small.

立軸ポンプの振動制御のための手段が、例えば、特開２０１２−６２８９２号に記載されている。特開２０１２−６２８９２号は、上昇管にホルダを固定し、ばね要素を介して振動要素をホルダに接続することを記載している。   Means for controlling the vibration of the vertical shaft pump is described in, for example, Japanese Patent Application Laid-Open No. 2012-62892. Japanese Patent Application Laid-Open No. 2012-62892 describes that a holder is fixed to a riser pipe and a vibration element is connected to the holder via a spring element.

特開２０１２−６２８９２号JP 2012-62892 A

本発明の一実施形態は、揚水管の減衰性能を向上させることによって、ポンプ全体の安定性を高めることができる立軸ポンプを提供することを目的とする。   An object of one embodiment of the present invention is to provide a vertical pump that can improve the stability of the entire pump by improving the damping performance of the pumped-up pipe.

本発明の一実施形態によれば、羽根車を収容するボウル部に接続された揚水管を備え、揚水管内に羽根車を回転させるモータの主軸が配置された立軸ポンプであって、揚水管の外周面に減衰材が取り付けられている、立軸ポンプが提供される。この構成によれば、揚水管の外周面に減衰材が取り付けられた簡易な構造で、立軸ポンプに生じる自励振動を抑制することができる。   According to one embodiment of the present invention, there is a vertical shaft pump that includes a pumping pipe connected to a bowl portion that houses an impeller, and in which the main shaft of a motor that rotates the impeller is disposed in the pumping pipe. A vertical shaft pump is provided in which a damping material is attached to the outer peripheral surface. According to this structure, the self-excited vibration which arises in a vertical shaft pump can be suppressed with the simple structure by which the damping material was attached to the outer peripheral surface of a pumping pipe.

本発明の一実施形態によれば、減衰材は、板状の弾性体である。   According to one embodiment of the present invention, the damping material is a plate-like elastic body.

本発明の一実施形態によれば、減衰材は、板状の弾性体を含む積層板である。   According to one embodiment of the present invention, the damping material is a laminate including a plate-like elastic body.

本発明の一実施形態によれば、板状の弾性体は、ゴム板である。   According to one embodiment of the present invention, the plate-like elastic body is a rubber plate.

本発明の一実施形態によれば、減衰材は、揚水管の外周面の全体に巻き付けられている。   According to one embodiment of the present invention, the damping material is wound around the entire outer peripheral surface of the pumped-up pipe.

本発明の一実施形態によれば、羽根車を収容するボウル部に接続された揚水管を備え、揚水管内に羽根車を回転させるモータの主軸が配置された立軸ポンプであって、揚水管は、揚水管の長さ方向に互いに離間して配置される少なくとも２つのフランジ部を備えており、少なくとも２つのフランジ部の間に、揚水管の長さ方向に延在する一対の支持棒と支持棒の間に取り付けられる弾性体とを備える減衰バーが取り付けられている、立軸ポンプが提供される。この構成によれば、フランジ部間のデッドスペースに配置された減衰バーによって、立軸ポンプに生じる自励振動を抑制することができる。   According to an embodiment of the present invention, a vertical shaft pump including a pumping pipe connected to a bowl portion that houses an impeller, and a main shaft of a motor that rotates the impeller in the pumping pipe is disposed. , Comprising at least two flange portions that are spaced apart from each other in the length direction of the pumping pipe, and a pair of support rods and supports extending in the length direction of the pumping pipe between the at least two flange portions A vertical shaft pump is provided having a damping bar attached with an elastic body attached between the bars. According to this configuration, the self-excited vibration generated in the vertical shaft pump can be suppressed by the damping bar disposed in the dead space between the flange portions.

本発明の一実施形態によれば、弾性体はゴムで形成されている。   According to one embodiment of the present invention, the elastic body is made of rubber.

本発明の一実施形態によれば、羽根車を収容するボウル部に接続された揚水管を備え、揚水管内に羽根車を回転させるモータの主軸が配置された立軸ポンプであって、揚水管はフランジ部を備えており、フランジ部に、揚水管の長さ方向に延在する複数の弾性部材が取り付けられており、弾性部材を介してリング状の錘がフランジ部に取り付けられている、立軸ポンプが提供される。この構成によれば、フランジ部間のデッドスペースに配置された弾性部材及び錘によってダイナミックダンパーを形成し、これにより、立軸ポンプに生じる自励振動を抑制することができる。   According to an embodiment of the present invention, a vertical shaft pump including a pumping pipe connected to a bowl portion that houses an impeller, and a main shaft of a motor that rotates the impeller in the pumping pipe is disposed. A vertical shaft provided with a flange portion, wherein a plurality of elastic members extending in the length direction of the pumping pipe are attached to the flange portion, and a ring-shaped weight is attached to the flange portion via the elastic member A pump is provided. According to this configuration, the dynamic damper is formed by the elastic member and the weight that are disposed in the dead space between the flange portions, and thereby, the self-excited vibration generated in the vertical shaft pump can be suppressed.

本発明の第１実施形態による立軸ポンプを形成する揚水管の斜視図である。It is a perspective view of the pumping pipe which forms the vertical shaft pump by 1st Embodiment of this invention. 図１に示す揚水管の断面図である。It is sectional drawing of the pumping pipe shown in FIG. 本発明の第２実施形態による立軸ポンプを形成する揚水管の斜視図である。It is a perspective view of the pumping pipe which forms the vertical shaft pump by 2nd Embodiment of this invention. 本発明の第３実施形態による立軸ポンプを形成する揚水管の部分斜視図である。It is a fragmentary perspective view of the pumping pipe which forms the vertical shaft pump by 3rd Embodiment of this invention. 従来の立軸ポンプの外観を示す図である。It is a figure which shows the external appearance of the conventional vertical shaft pump. 図５Ａに示す立軸ポンプを形成する揚水管の断面図である。It is sectional drawing of the pumping pipe which forms the vertical shaft pump shown to FIG. 5A.

以下、図１〜図４に参照して、本発明の各実施形態を説明する。
［第１実施形態］ Hereinafter, each embodiment of the present invention will be described with reference to FIGS.
[First Embodiment]

図１は、本発明の第１実施形態による立軸ポンプを形成する揚水管１５を示す斜視図である。図２は、図１のＢ−Ｂ線断面図である。揚水管１５は、必要とされる立軸ポンプの長さに応じて、図５Ａに示される揚水管５と同様に、複数の揚水管１５をフランジ部を介して連結することができる。図１及び図２に示されるように、揚水管１５は、管本体１５ａの上端部と下端部にそれぞれ形成される上部フランジ１６ａと下部フランジ１６ｂとを有する。また、本実施形態では、揚水管１５は、約９０度間隔で管本体１５ａの周囲に配置される補強リブ１７を備えている。補強リブ１７は、管本体１５ａの長さ方向に延在し、管本体１５ａに剛性を付与する機能を有する。しかし、本実施形態の立軸ポンプにおいて、補強リブ１７は必須の構成要素ではない。揚水管１５は、必ずしも補強リブ１７を備えていなくてもよい。   FIG. 1 is a perspective view showing a pumping pipe 15 forming a vertical shaft pump according to a first embodiment of the present invention. 2 is a cross-sectional view taken along line BB in FIG. The pumping pipe 15 can connect the several pumping pipe 15 via a flange part similarly to the pumping pipe 5 shown by FIG. 5A according to the length of the vertical shaft pump required. As shown in FIGS. 1 and 2, the water pumping pipe 15 has an upper flange 16a and a lower flange 16b formed at the upper end and the lower end of the pipe body 15a, respectively. Moreover, in this embodiment, the pumping pipe 15 is equipped with the reinforcement rib 17 arrange | positioned around the pipe | tube main body 15a at intervals of about 90 degree | times. The reinforcing rib 17 extends in the length direction of the tube body 15a and has a function of imparting rigidity to the tube body 15a. However, in the vertical shaft pump of this embodiment, the reinforcing rib 17 is not an essential component. The pumping pipe 15 does not necessarily have to include the reinforcing rib 17.

図１に示すように、本実施形態では、揚水管１５の外周面（本実施形態では管本体１５ａの外周面）に減衰材１８が取り付けられている。具体的には、互いに隣接する補強リブ１７、上部フランジ１６ａ、下部フランジ１６ｂにより画定される各空間内における、管本体１５ａの外周面に減衰材１８が取り付けられている。しかし、減衰材１８は、補強リブ１７を含む揚水管の外周面の全体を覆うように取り付けられていてもよい。また、管本体１５ａに補強リブ１７が形成されていない場合には、減衰材１８は、管本体１５ａの外周面の全体に巻き付けられていてよい。減衰材１８は、揚水管１５または管本体１５ａの外周面上に直接取り付けられてよい。   As shown in FIG. 1, in this embodiment, an attenuation member 18 is attached to the outer peripheral surface of the pumped-up pipe 15 (in this embodiment, the outer peripheral surface of the pipe main body 15a). Specifically, the damping material 18 is attached to the outer peripheral surface of the pipe body 15a in each space defined by the reinforcing ribs 17, the upper flange 16a, and the lower flange 16b adjacent to each other. However, the damping member 18 may be attached so as to cover the entire outer peripheral surface of the pumped pipe including the reinforcing rib 17. Moreover, when the reinforcing rib 17 is not formed in the pipe main body 15a, the damping material 18 may be wound around the whole outer peripheral surface of the pipe main body 15a. The damping material 18 may be directly attached on the outer peripheral surface of the pumped-up pipe 15 or the pipe body 15a.

本実施形態では、減衰材１８は、板状の弾性体であり、具体的には、ゴム板である。板状の減衰材１８は、例えば接着剤を用いて、管本体１５ａの外周面に容易に貼りつけることができる。ポンプの動作中の振動により揚水管１５が曲げ変形すると、管本体１５ａに貼り付けられた減衰材１８も管本体１５ａに追従して曲げ変形するが、このとき、減衰材１８のゴム材料は、変形エネルギーを熱に変えて発散し、振動を吸収する。これにより、揚水管１５の振動が減衰される。ゴム板の厚さは、例えば、減衰能力確保の観点から管の厚さ以上であることが好ましい。   In the present embodiment, the damping material 18 is a plate-like elastic body, specifically, a rubber plate. The plate-like damping material 18 can be easily attached to the outer peripheral surface of the tube body 15a using, for example, an adhesive. When the pumping pipe 15 is bent and deformed by vibration during the operation of the pump, the damping member 18 attached to the pipe body 15a also bends and deforms following the pipe body 15a. At this time, the rubber material of the damping member 18 is Converts deformation energy into heat and diverges to absorb vibrations. Thereby, the vibration of the water pump 15 is damped. For example, the thickness of the rubber plate is preferably equal to or greater than the thickness of the tube from the viewpoint of securing the damping capacity.

減衰材１８は、また、ゴム板と鋼板とを交互に重ね合わせて形成される積層板であってもよい。ゴム板と鋼板とを重ね合わせることにより、ゴム板の曲げ変形だけでなく、積層板のせん断変形による減衰を利用することができる。また、例えば、硬さの異なる複数のゴム板を鋼板を介して重ね合わせることにより、様々なレベルの振動に対応することができる。   The damping material 18 may also be a laminated plate formed by alternately laminating rubber plates and steel plates. By superposing the rubber plate and the steel plate, not only bending deformation of the rubber plate but also attenuation due to shear deformation of the laminated plate can be used. Further, for example, by overlapping a plurality of rubber plates having different hardnesses via steel plates, it is possible to cope with various levels of vibration.

また、複数本の揚水管１５が連結されて使用される場合、全ての揚水管１５の外周面に減衰材１８が取り付けられている必要はない。例えば、揚水管１５の固有振動数と共振する際の振動モードに基づいて、変形（ひずみ）が最も大きい部分に近い揚水管１５にのみ減衰材１８が取り付けられてもよい。
［第２実施形態］ Further, when a plurality of pumping pipes 15 are connected and used, it is not necessary that the damping material 18 is attached to the outer peripheral surface of all the pumping pipes 15. For example, the damping material 18 may be attached only to the pumping pipe 15 close to the portion with the largest deformation (strain) based on the vibration mode when resonating with the natural frequency of the pumping pipe 15.
[Second Embodiment]

図３は、本発明の第２実施形態による立軸ポンプを形成する揚水管２５の斜視図である。第２実施形態は、減衰材が、図３に示す減衰バー３０により形成されている点が、第１実施形態と異なっている。その他の構成については、第１実施形態と実質的に同様であるので詳しい説明は省略する。   FIG. 3 is a perspective view of a pumping pipe 25 forming a vertical shaft pump according to the second embodiment of the present invention. The second embodiment is different from the first embodiment in that the damping material is formed by the damping bar 30 shown in FIG. Since other configurations are substantially the same as those of the first embodiment, detailed description thereof is omitted.

減衰バー３０は、揚水管２５の上部フランジ２６ａと下部フランジ２６ｂとの間に取り付けられており、揚水管２５の長さ方向に延在する一対の支持棒２８ａ、２８ｂと、支持棒２８ａ、２８ｂの間に取り付けられる弾性体２９とを備える。支持棒２８ａ、２８ｂは、例えば、揚水管２５の管本体２５ａと同様の材料で形成することができる。弾性体２９は、例えば、ゴムで形成することができ、その形状は特に限られないが、揚水管２５の長さ方向に一定の長さを有することが好ましい。ポンプの動作中に揚水管２５が曲げ変形すると、上部フランジ２６ａ及び／または下部フランジ２６ｂの変位に応じて減衰バー３０が曲げ変形する。このとき、弾性体２９のゴム材料は、変形エネルギーを熱に変えて発散し、振動を吸収する。これにより、揚水管２５の振動が減衰される。   The damping bar 30 is attached between the upper flange 26a and the lower flange 26b of the pumping pipe 25, and a pair of support bars 28a, 28b extending in the length direction of the pumping pipe 25, and the support bars 28a, 28b. And an elastic body 29 attached between the two. The support rods 28a and 28b can be formed of the same material as that of the pipe body 25a of the pumped-up pipe 25, for example. The elastic body 29 can be formed of, for example, rubber, and the shape thereof is not particularly limited, but it is preferable that the elastic body 29 has a certain length in the length direction of the pumping pipe 25. When the pumping pipe 25 is bent and deformed during the operation of the pump, the damping bar 30 is bent and deformed according to the displacement of the upper flange 26a and / or the lower flange 26b. At this time, the rubber material of the elastic body 29 diverges by changing the deformation energy into heat and absorbs vibration. Thereby, the vibration of the pumping pipe 25 is attenuated.

尚、図３の例では、４つの減衰バー３０が、約９０度間隔で管本体２５ａの周囲に配置されているが、減衰バー３０の数及びその配置間隔は、図３の例に限られない。   In the example of FIG. 3, four attenuation bars 30 are arranged around the tube main body 25a at intervals of about 90 degrees. However, the number of the attenuation bars 30 and their arrangement intervals are limited to those in the example of FIG. Absent.

また、複数本の揚水管２５が連結されて使用される場合、全ての揚水管２５に減衰バー３０が取り付けられている必要はない。例えば、揚水管２５の固有振動数と共振する際の振動モードに基づいて、変形（ひずみ）が最も大きい揚水管２５にのみ減衰バー３０が取り付けられていてもよい。   Further, when a plurality of pumping pipes 25 are connected and used, it is not necessary that the damping bars 30 are attached to all the pumping pipes 25. For example, the damping bar 30 may be attached only to the pumping pipe 25 having the largest deformation (strain) based on the vibration mode when resonating with the natural frequency of the pumping pipe 25.

上部及び下部フランジ２６ａ、２６ｂに対する支持棒２８ａ、２８ｂの固定は、ボルト等の締結部材を用いて行うことができる。また、支持棒２８ａ、２８ｂに対する弾性体２９の固定は、接着剤等を用いて行うことができる。
［第３実施形態］ The support bars 28a and 28b can be fixed to the upper and lower flanges 26a and 26b by using fastening members such as bolts. The elastic body 29 can be fixed to the support bars 28a and 28b using an adhesive or the like.
[Third Embodiment]

図４は、本発明の第３実施形態による立軸ポンプを形成する揚水管３５の部分斜視図である。第３実施形態では、減衰機構としてダイナミックダンパーが形成されている。尚、
図４の例では揚水管３５のフランジ間に補強リブは設けられていないが、第１及び第２実施形態と同様に、揚水管３５は補強リブを備えていてもよい。この例では、振動する対象物として揚水管の上部フランジ３６ａが利用され、補助的な質量体としてリング状の錘３８が付加されている。上部フランジ３６ａと錘３８とは、揚水管３５の長さ方向に延びる弾性部材３９によって連結されている。弾性部材３９は、ばね部材であってもよい。その他の構成については、第１及び第２実施形態と実質的に同様であるので詳しい説明は省略する。 FIG. 4 is a partial perspective view of a pumping pipe 35 forming a vertical shaft pump according to a third embodiment of the present invention. In the third embodiment, a dynamic damper is formed as a damping mechanism. still,
In the example of FIG. 4, no reinforcing rib is provided between the flanges of the pumping pipe 35, but the pumping pipe 35 may be provided with a reinforcing rib, as in the first and second embodiments. In this example, an upper flange 36a of a pumping pipe is used as a vibrating object, and a ring-shaped weight 38 is added as an auxiliary mass body. The upper flange 36 a and the weight 38 are connected by an elastic member 39 that extends in the length direction of the water pump 35. The elastic member 39 may be a spring member. Since other configurations are substantially the same as those of the first and second embodiments, detailed description thereof is omitted.

ダイナミックダンパーは、揚水管３５の固有振動数に基づき、既知の手法を用いて最適な減衰を与えるように設計することができる。また、複数本の揚水管３５が連結されて使用される場合、上記減衰機構は、揚水管３５の各上部フランジ３６ａに形成されていてもよいし、一部の上部フランジ３６ａにのみ形成されていてもよい。例えば、揚水管３５の固有振動数と共振する際の振動モードに基づいて、変位が最も大きい揚水管３５の部分に近い上部フランジ３６ａに減衰機構を取り付けることができる。   The dynamic damper can be designed to give optimum damping using known techniques based on the natural frequency of the water pump 35. When a plurality of pumping pipes 35 are connected and used, the damping mechanism may be formed on each upper flange 36a of the pumping pipe 35 or only on a part of the upper flanges 36a. May be. For example, a damping mechanism can be attached to the upper flange 36a close to the portion of the pumped pipe 35 having the largest displacement based on the vibration mode when resonating with the natural frequency of the pumped pipe 35.

本発明は、立軸ポンプに広く適用することができる。   The present invention can be widely applied to a vertical shaft pump.

１ 立軸ポンプ
２ ポンプ床
３ モータ
４ ボウル部
５ 揚水管
６ フランジ部
７ 補強リブ
１５ 揚水管
１５ａ 管本体
１６ａ 上部フランジ
１６ｂ 下部フランジ
１７ 補強リブ
１８ 減衰材
２５ 揚水管
２６ａ 上部フランジ
２６ｂ 下部フランジ
２７ 補強リブ
２８ａ、２８ｂ 支持棒
２９ 弾性体
３０ 減衰バー
３５ 揚水管
３５ａ 管本体
３６ａ 上部フランジ
３８ 錘
３９ 弾性部材 DESCRIPTION OF SYMBOLS 1 Vertical shaft pump 2 Pump floor 3 Motor 4 Bowl part 5 Pumping pipe 6 Flange part 7 Reinforcement rib 15 Pumping pipe 15a Pipe main body 16a Upper flange 16b Lower flange 17 Reinforcement rib 18 Damping material 25 Pumping pipe 26a Upper flange 26b Lower flange 27 Reinforcement rib 28a, 28b Support rod 29 Elastic body 30 Damping bar 35 Pumping pipe 35a Pipe body 36a Upper flange 38 Weight 39 Elastic member

Claims (8)

羽根車を収容するボウル部に接続された揚水管を備え、前記揚水管内に前記羽根車を回転させるモータの主軸が配置された立軸ポンプであって、前記揚水管の外周面に減衰材が取り付けられている、立軸ポンプ。   A vertical shaft pump having a pumping pipe connected to a bowl portion that houses an impeller, and a main shaft of a motor that rotates the impeller is disposed in the pumping pipe, and a damping material is attached to an outer peripheral surface of the pumping pipe A vertical shaft pump. 前記減衰材は、板状の弾性体である、請求項１に記載の立軸ポンプ。   The vertical shaft pump according to claim 1, wherein the damping material is a plate-like elastic body. 前記減衰材は、板状の弾性体を含む積層板である、請求項１に記載の立軸ポンプ。   The vertical shaft pump according to claim 1, wherein the damping material is a laminated plate including a plate-like elastic body. 前記板状の弾性体は、ゴム板である、請求項２または３に記載の立軸ポンプ。   The vertical shaft pump according to claim 2 or 3, wherein the plate-like elastic body is a rubber plate. 前記減衰材は、前記揚水管の外周面の全体に巻き付けられている、請求項１〜４のいずれか一項に記載の立軸ポンプ。   The vertical shaft pump according to any one of claims 1 to 4, wherein the damping material is wound around the entire outer peripheral surface of the pumped-up pipe. 羽根車を収容するボウル部に接続された揚水管を備え、前記揚水管内に前記羽根車を回転させるモータの主軸が配置された立軸ポンプであって、前記揚水管は、前記揚水管の長さ方向に互いに離間して配置される少なくとも２つのフランジ部を備えており、前記少なくとも２つのフランジ部の間に、前記揚水管の長さ方向に延在する一対の支持棒と前記支持棒の間に取り付けられる弾性体とを備える減衰バーが取り付けられている、立軸ポンプ。   A vertical shaft pump including a pumping pipe connected to a bowl portion that houses an impeller, and a main shaft of a motor that rotates the impeller is disposed in the pumping pipe, wherein the pumping pipe has a length of the pumping pipe. At least two flange portions that are spaced apart from each other in the direction, and between the at least two flange portions, between a pair of support rods extending in the length direction of the pumping pipe and the support rods A vertical shaft pump having a damping bar attached thereto and an elastic body attached to the shaft. 前記弾性体は、ゴムで形成されている、請求項６に記載の立軸ポンプ。   The vertical shaft pump according to claim 6, wherein the elastic body is made of rubber. 羽根車を収容するボウル部に接続された揚水管を備え、前記揚水管内に前記羽根車を回転させるモータの主軸が配置された立軸ポンプであって、前記揚水管はフランジ部を備えており、前記フランジ部に、前記揚水管の長さ方向に延在する複数の弾性部材が取り付けられており、前記弾性部材を介してリング状の錘が前記フランジ部に取り付けられている、立軸ポンプ。   A vertical shaft pump including a pumping pipe connected to a bowl portion that houses an impeller, and a main shaft of a motor that rotates the impeller in the pumping pipe, the pumping pipe including a flange portion; A vertical shaft pump in which a plurality of elastic members extending in the length direction of the pumping pipe are attached to the flange portion, and a ring-shaped weight is attached to the flange portion via the elastic member.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020051383A (en) * 2018-09-28 2020-04-02 株式会社日立インダストリアルプロダクツ Vertical shaft pump

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JPS57137666A (en) * 1982-01-14 1982-08-25 Hitachi Ltd Totally enclosed type compressor piping vibration damper
JPS62184296A (en) * 1986-02-07 1987-08-12 株式会社ブリヂストン Dynamic damper for pipe
JPH02186194A (en) * 1989-01-09 1990-07-20 Hayakawa Rubber Co Ltd Vibration-suppressing soundproof member for pipe
JPH0414723U (en) * 1990-05-28 1992-02-06
JPH05106599A (en) * 1991-10-21 1993-04-27 Hitachi Ltd Vibration isolating device of vertical shaft pump
JP2002228057A (en) * 2001-01-31 2002-08-14 Tokai Rubber Ind Ltd Vibration absorbing hose
JP2012062892A (en) * 2010-09-17 2012-03-29 Sulzer Pumpen Ag Apparatus and method for vibration control of rising pipe of vertical pump
JP2014074346A (en) * 2012-10-03 2014-04-24 Ebara Corp Pump device having dynamic vibration absorber

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137666A (en) * 1982-01-14 1982-08-25 Hitachi Ltd Totally enclosed type compressor piping vibration damper
JPS62184296A (en) * 1986-02-07 1987-08-12 株式会社ブリヂストン Dynamic damper for pipe
JPH02186194A (en) * 1989-01-09 1990-07-20 Hayakawa Rubber Co Ltd Vibration-suppressing soundproof member for pipe
JPH0414723U (en) * 1990-05-28 1992-02-06
JPH05106599A (en) * 1991-10-21 1993-04-27 Hitachi Ltd Vibration isolating device of vertical shaft pump
JP2002228057A (en) * 2001-01-31 2002-08-14 Tokai Rubber Ind Ltd Vibration absorbing hose
JP2012062892A (en) * 2010-09-17 2012-03-29 Sulzer Pumpen Ag Apparatus and method for vibration control of rising pipe of vertical pump
JP2014074346A (en) * 2012-10-03 2014-04-24 Ebara Corp Pump device having dynamic vibration absorber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020051383A (en) * 2018-09-28 2020-04-02 株式会社日立インダストリアルプロダクツ Vertical shaft pump

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