JP6671272B2 - Shaft coupling cover and pump device having the same - Google Patents

Shaft coupling cover and pump device having the same Download PDF

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JP6671272B2
JP6671272B2 JP2016233816A JP2016233816A JP6671272B2 JP 6671272 B2 JP6671272 B2 JP 6671272B2 JP 2016233816 A JP2016233816 A JP 2016233816A JP 2016233816 A JP2016233816 A JP 2016233816A JP 6671272 B2 JP6671272 B2 JP 6671272B2
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shaft coupling
coupling cover
cover
shaft
attachment
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JP2018091188A (en
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一完 秋元
一完 秋元
寛 國井
寛 國井
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Hitachi Industrial Equipment Systems Co Ltd
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Description

本発明は、ポンプ装置に係り、特にポンプ本体の主軸とポンプ本体を駆動する電動機の主軸を連結する軸継手のカバーに関する。   The present invention relates to a pump device, and more particularly to a cover of a shaft coupling that connects a main shaft of a pump main body and a main shaft of an electric motor that drives the pump main body.

ポンプ装置は、ポンプ本体の主軸が軸継手を介して電動機の主軸に連結されることによりポンプ本体が駆動される。主軸及び軸継手は高速回転するため、高速回転中の軸継手が破損した場合に破損物の飛散防止のために軸継手カバーが設けられている。また、軸継手カバーは、人体との接触や異物混入を防ぐために用いられている。   In the pump device, the pump main body is driven by connecting the main shaft of the pump main body to the main shaft of the electric motor via a shaft coupling. Since the main shaft and the shaft coupling rotate at a high speed, a shaft coupling cover is provided in order to prevent scattering of a broken object when the shaft coupling is broken during the high-speed rotation. Further, the shaft coupling cover is used to prevent contact with a human body and entry of foreign matter.

従来の軸継手カバーは、回転方向に対してはカバーで覆うため軸継手が飛散した場合でも破損物を防止することができた。しかし、円周方向に対して覆うように取り付けられてはいるが、スラスト方向に対しては覆われていないため、誤って手等を入れられる構造となっている。また、人体との接触を防ぐため、側面板付カバーを付加した構成もあるが、完全に防いでいるわけではなかった。   Since the conventional shaft coupling cover is covered with the cover in the rotating direction, even if the shaft coupling scatters, it is possible to prevent a breakage. However, although it is attached so as to cover in the circumferential direction, it is not covered in the thrust direction, so that it has a structure in which a hand or the like can be erroneously inserted. There is also a configuration in which a cover with a side plate is added to prevent contact with the human body, but this has not been completely prevented.

本技術分野の背景技術として、特開２０１４−１７３６８０号公報（特許文献１）がある。特許文献１には、ガード本体上部とガード本体下部と脚部を有し、軸継手と主軸を覆う軸継手ガードが開示されている。   As a background art of this technical field, there is Japanese Patent Application Laid-Open No. 2014-173680 (Patent Document 1). Patent Literature 1 discloses a shaft coupling guard that has an upper portion of a guard main body, a lower portion of a guard main body, and a leg, and covers a shaft coupling and a main shaft.

特開２０１４−１７３６８０号公報JP 2014-173680 A

特許文献１においては、完全密閉形の軸継手ガードとし筒状の軸継手ガードを支えるための脚部が必要なため、部品点数が増加すると共に、組立てにかかる作業工数が増えるという問題がある。   In Patent Literature 1, since a leg portion for supporting a cylindrical shaft joint guard is required as a completely sealed shaft joint guard, there is a problem that the number of parts increases and the number of work steps required for assembly increases.

本発明の目的は、部品点数を小とし、組立て作業効率や作業性の問題を解決することができる軸継手カバー及びそれを備えるポンプ装置を提供することである。   SUMMARY OF THE INVENTION It is an object of the present invention to provide a shaft coupling cover that can reduce the number of parts and solve the problems of assembly work efficiency and workability, and a pump device including the same.

本発明は、上記目的を達成するために、その一例を挙げるならば、電動機と、ポンプ本体と、電動機の主軸とポンプ本体の主軸をつなぐ軸継手と、軸継手を覆う軸継手カバーを有するポンプ装置であって、軸継手カバーは、ポンプ本体の軸受カバーに固定されたアタッチメントと、アタッチメントに支持される軸継手カバー本体からなるように構成した。   To achieve the above object, the present invention provides, for example, a pump having an electric motor, a pump body, a shaft coupling connecting a main shaft of the electric motor and the main shaft of the pump body, and a shaft coupling cover covering the shaft coupling. In the apparatus, the shaft coupling cover includes an attachment fixed to a bearing cover of the pump body and a shaft coupling cover body supported by the attachment.

本発明によれば、部品点数を小とし、組立て作業効率や作業性を向上した軸継手カバー及びそれを備えるポンプ装置を提供できる。   Advantageous Effects of Invention According to the present invention, it is possible to provide a shaft coupling cover with a reduced number of parts and improved assembling work efficiency and workability, and a pump device including the same.

実施例におけるポンプ装置全体の基本的な構造図である。FIG. 2 is a basic structural diagram of the entire pump device in the embodiment. 実施例における軸継手カバーの正面図と右側面断面図である。It is the front view and right side sectional drawing of the shaft coupling cover in an Example. 実施例における他の構成の軸継手カバーの正面図である。It is a front view of the shaft coupling cover of another structure in an Example. 従来のポンプ装置全体の基本的な構造図である。It is a basic structural diagram of the whole conventional pump device.

以下、図面を用いて本発明の実施例について説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

まず、本発明の前提となる、従来の軸継手カバーを備えたポンプ装置について説明する。   First, a pump device provided with a conventional shaft coupling cover, which is a premise of the present invention, will be described.

図４は、従来の軸継手カバーを備えたポンプ装置の構成図である。図４において、ポンプ装置１００は、電動機２と、ポンプ本体３と、軸継手４と、共通ベース５と、軸継手カバー１で構成される。電動機２およびポンプ本体３は、共通ベース５上に設置され、電動機の主軸６と、ポンプ本体の主軸７とは、電動機２とポンプ本体３の間に設けられた軸継手４によって連結されており、その上を軸継手カバー１が覆っている。また、軸継手カバー１は、それを支持するための脚部８を介して共通ベース５に固定されている。   FIG. 4 is a configuration diagram of a pump device provided with a conventional shaft coupling cover. In FIG. 4, a pump device 100 includes an electric motor 2, a pump body 3, a shaft coupling 4, a common base 5, and a shaft coupling cover 1. The electric motor 2 and the pump main body 3 are installed on a common base 5, and the main shaft 6 of the electric motor and the main shaft 7 of the pump main body are connected by a shaft coupling 4 provided between the electric motor 2 and the pump main body 3. , The shaft coupling cover 1 covers it. In addition, the shaft coupling cover 1 is fixed to the common base 5 via leg portions 8 for supporting the same.

このように、従来は、軸継手カバーを支持するための脚部が必要なため、部品点数が増加すると共に、さらには、点検や整備のために、ポンプ本体と電動機の取り付け及び取り外しを行う際の作業工数が増えるという問題があった。   As described above, conventionally, since the legs for supporting the shaft coupling cover are required, the number of parts increases, and further, when the pump body and the electric motor are attached and detached for inspection and maintenance. There was a problem that the number of man-hours for the work increased.

そこで、これを解決するために、軸継手カバーを支持するための脚部を不要とし、部品点数を小とし、組立て作業効率や作業性の問題を解決することができる軸継手カバー及びそれを備えるポンプ装置について、以下本実施例を説明する。   Therefore, in order to solve this problem, a leg for supporting the shaft coupling cover is not required, the number of parts is reduced, and the problem of assembly work efficiency and workability can be solved. The present embodiment will be described below for a pump device.

図１は、本実施例における軸継手カバーを備えたポンプ装置の構成図である。図１において、図４と同様の機能を有する構成については同じ符号を付し、その説明は省略する。図１において、１０は本実施例における軸継手カバーであって、軸継手カバー１０は軸受カバー１１によって支持されている。   FIG. 1 is a configuration diagram of a pump device including a shaft coupling cover in the present embodiment. 1, components having the same functions as those in FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 1, reference numeral 10 denotes a shaft coupling cover in the present embodiment, and the shaft coupling cover 10 is supported by a bearing cover 11.

図２に、本実施例における軸継手カバー１０のポンプ本体側から見た正面図（Ａ）と、その右側面から見たＣ-Ｃでの断面図（Ｂ）を示す。図２に示すように、軸継手カバー１０は軸継手カバー本体１２とアタッチメント１３から構成されており、ポンプ本体３の軸受カバー１１にアタッチメント１３を締結することで、軸継手カバー１０を支持する。すなわち、軸受カバー１１にアタッチメント１３を介して軸継手カバー本体１２が固定される。軸継手カバー本体１２は、軸継手と主軸を周方向及び電動機側へスラスト方向に向かって形成される筒状のカバーである。   FIG. 2 shows a front view (A) of the shaft coupling cover 10 in the present embodiment as viewed from the pump body side, and a cross-sectional view (B) taken along the line CC as viewed from the right side thereof. As shown in FIG. 2, the shaft coupling cover 10 includes a shaft coupling cover body 12 and an attachment 13. The shaft coupling cover 10 is supported by fastening the attachment 13 to the bearing cover 11 of the pump body 3. That is, the shaft coupling cover main body 12 is fixed to the bearing cover 11 via the attachment 13. The shaft coupling cover main body 12 is a cylindrical cover formed in the shaft coupling and the main shaft in the circumferential direction and the thrust direction toward the electric motor.

アタッチメント１３及び軸継手カバー本体１２はそれぞれの形状に合わせて形成している。本実施例では、その形状は、円筒状の形状よりも製作面において有利な多角形状にすることで製作性をよくするため折り曲げ方式を採用する。なお、本実施例は、それに限定されるものではなく、円筒状でもよい。また、図２では６角形状として例示したが、図３に示すような４角形状や８角形状等の多角形でもよい。   The attachment 13 and the shaft coupling cover main body 12 are formed according to the respective shapes. In the present embodiment, a bending method is adopted in order to improve manufacturability by making the shape a polygonal shape which is more advantageous in terms of manufacturing than a cylindrical shape. The present embodiment is not limited to this, and may be cylindrical. Although FIG. 2 illustrates a hexagonal shape, a polygonal shape such as a quadrangular shape or an octagonal shape as illustrated in FIG. 3 may be used.

また、ポンプ本体の主軸を軸継手を介して電動機の主軸に連結したポンプ装置組立後でも軸継手カバー１０を取付けられるように、アタッチメント１３を分割構造とすることで、さらに、作業性が向上する。また、アタッチメント１３を上側部分と下側部分の２分割構造とすることで、さらに、作業性を向上できる。なお、軸継手カバー本体１２も、同様に分割構造としてもよい。   Further, the workability is further improved by forming the attachment 13 into a divided structure so that the shaft coupling cover 10 can be attached even after assembling the pump device in which the main shaft of the pump body is connected to the main shaft of the electric motor via the shaft coupling. . In addition, the workability can be further improved by forming the attachment 13 into a two-part structure including an upper part and a lower part. In addition, the shaft coupling cover main body 12 may have a divided structure similarly.

また、図２（Ａ）に示すように、アタッチメント１３の軸受カバー１１への取り付け箇所１４は軸受カバーに３箇所でボルト締め等で締結し固定する。なお、本実施例は、３箇所に限定されるものではない。   Further, as shown in FIG. 2A, three attachment portions 14 of the attachment 13 to the bearing cover 11 are fastened and fixed to the bearing cover by three bolts or the like. The present embodiment is not limited to three places.

また、図２（Ｂ）に示すように、アタッチメント１３と軸継手カバー本体１２との固定は、アタッチメント１３の電動機側に延びる締結部１５に筒状の軸継手カバー本体１２をボルト締め等で締結することで行う。   Further, as shown in FIG. 2B, the attachment 13 and the shaft coupling cover main body 12 are fixed by fastening the cylindrical shaft coupling cover main body 12 to a fastening portion 15 extending toward the electric motor of the attachment 13 by bolting or the like. Do it by doing.

なお、筒状の軸継手カバー本体１２のアタッチメント１３との締結箇所ではない反対側の端部は電動機側に固定されずオープンの状態とする。この理由は、ポンプ装置に用いる電動機として汎用の電動機を用い、電動機側の特殊な構成を不要にするためである。なお、この場合、軸継手カバー１０は、ポンプ本体３の軸受カバー１１に支持される片持ち支持構造となり、振動の影響が懸念されるが、緩衝材を介して支持する等の対応で対処可能である。また、電動機と軸継手カバー本体１２の端部との隙間は手をいれることができないような間隔とする。   The other end of the cylindrical shaft coupling cover main body 12 which is not the fastening portion with the attachment 13 is opened without being fixed to the motor side. The reason is that a general-purpose motor is used as the motor used in the pump device, and a special configuration on the motor side is not required. In this case, the shaft coupling cover 10 has a cantilever support structure that is supported by the bearing cover 11 of the pump body 3, and there is a concern about the influence of vibration. It is. The gap between the electric motor and the end of the shaft coupling cover main body 12 is set such that it cannot be touched.

また、軸継手を目視確認するためには、軸継手カバー１０を取り外さなければならないが、軸継手カバー本体１２の多角形状の一部の面を点検口付にすれば軸継手カバー１０を分解する作業を必要とせずに目視確認を行うことができる。また、軸継手カバー１０を構成するアタッチメント１３及び軸継手カバー本体１２にパンチング穴を設けることで、内部の回転部分が目視できるようにしてもよい。   Further, in order to visually check the shaft coupling, the shaft coupling cover 10 must be removed. However, if a part of the polygonal shape of the shaft coupling cover main body 12 is provided with an inspection port, the shaft coupling cover 10 is disassembled. Visual confirmation can be performed without any work. Further, by providing a punching hole in the attachment 13 and the shaft coupling cover main body 12 that constitute the shaft coupling cover 10, the internal rotating part may be made visible.

以上のように、本実施例における軸継手カバーは、軸受カバーから主軸部を覆う形状になっているため、主軸部に人体が接触することはない。また、軸受カバーに軸継手カバーを取り付けることにより、従来の軸継手カバーを支持するための脚部を必要としない。脚部を必要としないことで、電動機の大きさ、特に主軸の高さ位置に合わせて脚部を調整する必要がない。   As described above, the shaft coupling cover in the present embodiment has a shape that covers the main shaft portion from the bearing cover, so that the human body does not come into contact with the main shaft portion. Further, since the shaft coupling cover is attached to the bearing cover, a leg for supporting the conventional shaft coupling cover is not required. Since the legs are not required, there is no need to adjust the legs according to the size of the electric motor, particularly the height of the main shaft.

なお、軸継手カバーの大きさは、電動機の主軸の大きさにより軸継手の大きさによって変わる。しかし、軸継手カバーの大きさを、軸継手の大きさよりも余裕を待った大きさとすることで、個々の電動機に合わせた軸継手カバーを不要とし、部品の共用化を図ることが出来る。   Note that the size of the shaft coupling cover varies depending on the size of the shaft coupling depending on the size of the main shaft of the electric motor. However, by setting the size of the shaft coupling cover to be larger than the size of the shaft coupling, a shaft coupling cover tailored to each electric motor is not required, and parts can be shared.

以上のように、本実施例によれば、部品点数を小とし、取り付け及び取り外しが容易であり、締結箇所も減るため、組立て作業効率や作業性を向上した軸継手カバー及びそれを備えるポンプ装置を提供できる。   As described above, according to the present embodiment, the number of parts is small, the attachment and detachment is easy, and the number of fastening points is reduced, so that the shaft coupling cover with improved assembling work efficiency and workability, and a pump device including the same are provided. Can be provided.

以上実施例について説明したが、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。   Although the embodiments have been described above, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described above.

１、１０：軸継手カバー、２：電動機、３：ポンプ本体、４：軸継手、５：共通ベース、６：電動機の主軸、７：ポンプ本体の主軸、８：脚部、１１：軸受カバー、１２：軸継手カバー本体、１３：アタッチメント、１４：取り付け箇所、１５：締結部、１００：ポンプ装置 1, 10: shaft coupling cover, 2: electric motor, 3: pump body, 4: shaft coupling, 5: common base, 6: main shaft of motor, 7: main shaft of pump body, 8: leg, 11: bearing cover, 12: Shaft coupling cover body, 13: Attachment, 14: Attachment point, 15: Fastening part, 100: Pump device

Claims (10)

電動機と、ポンプ本体と、前記電動機の主軸と前記ポンプ本体の主軸をつなぐ軸継手と、該軸継手を覆う軸継手カバーを有するポンプ装置であって、
前記軸継手カバーは、前記軸継手を周方向に覆う筒状の形状を有する軸継手カバー本体と、該軸継手カバー本体の前記ポンプ本体側の開口を覆うアタッチメントからなり、
該アタッチメントが前記ポンプ本体の軸受カバーに固定されており、該軸受カバーに前記アタッチメントを介して前記軸継手カバー本体が固定されており、
前記アタッチメントは前記主軸と直交する方向において分割構造を有することを特徴とするポンプ装置。 An electric motor, a pump body, a pump joint having a shaft joint that connects a main shaft of the electric motor and a main shaft of the pump body, and a shaft joint cover that covers the shaft joint,
The shaft coupling cover comprises a shaft coupling cover body having a cylindrical shape that covers the shaft coupling in the circumferential direction, and an attachment that covers an opening of the shaft coupling cover body on the pump body side,
The attachment is fixed to a bearing cover of the pump body, the shaft coupling cover body is fixed to the bearing cover via the attachment,
The pump device, wherein the attachment has a divided structure in a direction orthogonal to the main axis . 請求項１に記載のポンプ装置であって、
前記アタッチメントは前記主軸と直交する方向において上側部分と下側部分の２分割構造を有することを特徴とするポンプ装置。 The pump device according to claim 1,
The pump device, wherein the attachment has a two- part structure of an upper part and a lower part in a direction orthogonal to the main axis . 請求項１に記載のポンプ装置であって、
前記軸継手カバー本体は前記主軸と直交する方向において分割構造を有することを特徴とするポンプ装置。 The pump device according to claim 1,
The pump device, wherein the shaft coupling cover main body has a divided structure in a direction orthogonal to the main shaft . 請求項１に記載のポンプ装置であって、
前記軸継手カバー本体は前記主軸と直交する方向において上側部分と下側部分の２分割構造を有することを特徴とするポンプ装置。 The pump device according to claim 1,
The pump device, wherein the shaft coupling cover main body has a two- part structure of an upper part and a lower part in a direction orthogonal to the main shaft . 請求項１から４の何れか１項に記載のポンプ装置であって、
前記アタッチメントは前記電動機側に延びる締結部を有し、該締結部で前記アタッチメントと前記軸継手カバー本体を締結することで前記軸継手カバーは前記ポンプ本体に支持されることを特徴とするポンプ装置。 The pump device according to any one of claims 1 to 4 , wherein
The pump device , wherein the attachment has a fastening portion extending toward the electric motor, and the shaft coupling cover is supported by the pump body by fastening the attachment and the shaft coupling cover body with the fastening portion. . 電動機の主軸とポンプ本体の主軸をつなぐ軸継手を覆う軸継手カバーであって、A shaft coupling cover for covering a shaft coupling connecting the main shaft of the electric motor and the main shaft of the pump body,
前記軸継手を周方向に覆う筒状の形状を有する軸継手カバー本体と、該軸継手カバー本体の前記ポンプ本体側の開口を覆うアタッチメントからなり、A shaft coupling cover body having a cylindrical shape that covers the shaft coupling in the circumferential direction, and an attachment that covers an opening of the shaft coupling cover body on the pump body side,
前記アタッチメントが前記ポンプ本体の軸受カバーに固定されることで、該軸受カバーに前記アタッチメントを介して前記軸継手カバー本体が固定され、When the attachment is fixed to the bearing cover of the pump body, the shaft coupling cover body is fixed to the bearing cover via the attachment,
前記アタッチメントは前記主軸と直交する方向において分割構造を有することを特徴とする軸継手カバー。The shaft coupling cover, wherein the attachment has a divided structure in a direction orthogonal to the main axis. 請求項６に記載の軸継手カバーであって、
前記アタッチメントは前記主軸と直交する方向において上側部分と下側部分の２分割構造を有することを特徴とする軸継手カバー。 The shaft coupling cover according to claim 6 , wherein
The shaft coupling cover, wherein the attachment has a two-part structure of an upper part and a lower part in a direction orthogonal to the main axis. 請求項６に記載の軸継手カバーであって、
前記軸継手カバー本体は前記主軸と直交する方向において分割構造を有することを特徴とする軸継手カバー。 The shaft coupling cover according to claim 6 , wherein
The shaft coupling cover has a divided structure in a direction orthogonal to the main shaft. 請求項６に記載の軸継手カバーであって、
前記軸継手カバー本体は前記主軸と直交する方向において上側部分と下側部分の２分割構造を有することを特徴とする軸継手カバー。 The shaft coupling cover according to claim 6 , wherein
A shaft coupling cover, wherein the shaft coupling cover main body has a two-part structure of an upper part and a lower part in a direction orthogonal to the main shaft. 請求項６から９の何れか１項に記載の軸継手カバーであって、
前記アタッチメントは前記電動機側に延びる締結部を有し、該締結部で前記アタッチメントと前記軸継手カバー本体を締結することで前記軸継手カバーは前記ポンプ本体に支持されることを特徴とする軸継手カバー。 The shaft coupling cover according to any one of claims 6 to 9 , wherein:
A shaft coupling, wherein the attachment has a fastening portion extending toward the electric motor, and the shaft coupling cover is supported by the pump body by fastening the attachment and the shaft coupling cover body at the fastening portion. cover.
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