JP2009103192A - Coupling cover and turning tool - Google Patents

Coupling cover and turning tool Download PDF

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JP2009103192A
JP2009103192A JP2007274671A JP2007274671A JP2009103192A JP 2009103192 A JP2009103192 A JP 2009103192A JP 2007274671 A JP2007274671 A JP 2007274671A JP 2007274671 A JP2007274671 A JP 2007274671A JP 2009103192 A JP2009103192 A JP 2009103192A
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shaft coupling
coupling
shaft
cover
turning tool
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Akinori Murashita
哲規 村下
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Chugoku Electric Power Co Inc
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Chugoku Electric Power Co Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a coupling cover and a turning tool allowing easy inspection of a shaft coupling or the like. <P>SOLUTION: In a coupling cover 1 covering a shaft coupling 103 from upper part, an access opening 11, which can be opened/closed and allows a view of the shaft coupling 103 when opened, is arranged. Furthermore, a turning tool 2 includes an engaging section 22 engaged with the shaft coupling 103 in one end section of a cylindrical tool body 21, and turns the shaft coupling 103 by rotating the tool body 21 in a state in which the engaging section 22 is engaged with the shaft coupling 103. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、軸継手をカバーするカップリングカバーおよび、軸継手を手動で回転させるためのターニング工具に関する。   The present invention relates to a coupling cover that covers a shaft coupling and a turning tool for manually rotating the shaft coupling.

例えば火力発電においては、蒸気タービンを流れる蒸気と蒸気を復水する復水器との圧力差が大きいほど、蒸気は蒸気タービンを効率よく回転させることができ、発電効率も上昇する。このため、復水器内を真空（負圧）にするための真空ポンプが設置されている（例えば、特許文献１参照。）。この真空ポンプは、入力軸が電動機（モータ）の出力軸に接続され、電動機の回転に伴って入力軸が回転し、ブレード（回転翼）の回転などによって復水器内を真空にするものである。このような真空ポンプは、復水器内を真空にするものであるため、比較的大型（大容量）であり、これを駆動する電動機も大型のものとなっている。   For example, in thermal power generation, the greater the pressure difference between the steam flowing through the steam turbine and the condenser that condenses the steam, the more efficiently the steam can rotate the steam turbine and the power generation efficiency also increases. For this reason, the vacuum pump for making the inside of a condenser vacuum (negative pressure) is installed (for example, refer patent document 1). In this vacuum pump, the input shaft is connected to the output shaft of a motor (motor), the input shaft rotates as the motor rotates, and the condenser is evacuated by rotation of blades (rotary blades). is there. Since such a vacuum pump is for evacuating the condenser, it is relatively large (large capacity), and the electric motor that drives it is also large.

また、真空ポンプの入力軸と電動機の出力軸との接続部である軸継手などを保護するために、図６、７に示すようなカップリングカバー１００が配設されている。このカップリングカバー１００は、断面が逆Ｕ字状で、軸１０１、１０２の長手方向に沿って延びている。そして、真空ポンプＰの入力軸１０１と電動機Ｍの出力軸１０２および、軸継手１０３を上方から覆うように配設され、下端部が設置面にボルト１０４で固定（設置）されている。このようなカップリングカバー１００は、大型の真空ポンプＰの軸継手１０３などを保護するため、大型のものとなり、また重量物となる。
特開平０６−２８１３６７号公報 Further, a coupling cover 100 as shown in FIGS. 6 and 7 is provided in order to protect a shaft coupling that is a connecting portion between the input shaft of the vacuum pump and the output shaft of the electric motor. The coupling cover 100 has an inverted U-shaped cross section and extends along the longitudinal direction of the shafts 101 and 102. And it arrange | positions so that the input shaft 101 of the vacuum pump P, the output shaft 102 of the electric motor M, and the shaft coupling 103 may be covered from upper direction, and the lower end part is being fixed (installed) to the installation surface with the volt | bolt 104. Such a coupling cover 100 is large and heavy because it protects the shaft coupling 103 of the large vacuum pump P and the like.
Japanese Patent Laid-Open No. 06-281367

ところで、設備の異常をより早期に発見するために設備を巡視する設備パトロールなどでは、設備の異常を目視や聴音によって発見、確認する場合がある。しかしながら、上記のようなカップリングカバー１００が配設された真空ポンプＰでは、軸継手１０３などがカップリングカバー１００で覆われているため、異常の発見が目視では困難であったり、聴音では容易ではなかったり、あるいは手間と時間とを要していた。すなわち、カップリングカバー１００と真空ポンプＰとの隙間などから軸継手１０３などを覗き見るだけでは、異常を適正に発見することが困難であった。また、ボルト１０４を外して、大型で重量物であるカップリングカバー１００を取り外して軸継手１０３などを見るには、手間と時間とを要していた。   By the way, in equipment patrols and the like that patrols equipment in order to discover equipment abnormalities at an earlier stage, the equipment abnormalities may be found and confirmed by visual observation or sound. However, in the vacuum pump P provided with the coupling cover 100 as described above, the shaft coupling 103 and the like are covered with the coupling cover 100, so that it is difficult to find an abnormality visually or easily by listening. It was not, or it took time and effort. That is, it is difficult to find an abnormality properly only by looking into the shaft coupling 103 or the like from the gap between the coupling cover 100 and the vacuum pump P or the like. Further, it takes time and effort to remove the bolt 104 and remove the large and heavy coupling cover 100 to see the shaft coupling 103 and the like.

一方、保守作業などのために設備が長期間停止している場合には、軸１０１、１０２や軸継手１０３などに錆などの異常が発生している場合がある。このため、軸継手１０３などを手で回転させて異常の有無を確認する必要がある。そして、このような確認の際には、ボルト１０４を外して、大型で重量物であるカップリングカバー１００を取り外し、軸継手１０３などを手で回転させなければならなかった。   On the other hand, when the equipment has been stopped for a long time due to maintenance work or the like, an abnormality such as rust may occur in the shafts 101 and 102, the shaft coupling 103, and the like. For this reason, it is necessary to check the presence or absence of abnormality by rotating the shaft coupling 103 or the like by hand. In such confirmation, the bolt 104 was removed, the large and heavy coupling cover 100 was removed, and the shaft coupling 103 and the like had to be rotated manually.

このように従来のカップリングカバーでは、軸継手の点検などに多くの時間と労力とを要していた。   As described above, in the conventional coupling cover, much time and labor are required for inspection of the shaft coupling.

そこでこの発明は、軸継手の点検などを容易かつ適正に行うことが可能なカップリングカバーおよびターニング工具を提供することを目的とする。   SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a coupling cover and a turning tool that can easily and properly check a shaft coupling.

上記目的を達成するために請求項１に記載の発明は、軸継手を上方から覆うようにして配設されるカップリングカバーにおいて、開閉可能で開けた状態で前記軸継手を目視可能な点検窓を設けたことを特徴とする。
（作用）
点検窓を開けると軸継手が目視（目認）され、点検窓を閉じると軸継手が保護される。 In order to achieve the above object, the invention according to claim 1 is a coupling window arranged so as to cover the shaft coupling from above. Is provided.
(Function)
When the inspection window is opened, the shaft coupling is visually observed (aimed), and when the inspection window is closed, the shaft coupling is protected.

請求項２に記載の発明は、請求項１に記載のカップリングカバーにおいて、前記点検窓を開けて前記軸継手を手動で回転可能なように、前記点検窓の大きさおよび位置の少なくとも一方が設定されていることを特徴とする。   According to a second aspect of the present invention, in the coupling cover according to the first aspect, at least one of a size and a position of the inspection window is such that the inspection window can be opened and the shaft coupling can be manually rotated. It is characterized by being set.

請求項３に記載の発明は、軸継手を手動で回転させるためのターニング工具であって、棒状の工具本体の一端部に、前記軸継手に係合する係合部を備え、この係合部を前記軸継手に係合させた状態で前記工具本体を回動させることで前記軸継手が回転することを特徴とする。   The invention according to claim 3 is a turning tool for manually rotating the shaft coupling, and is provided with an engagement portion that engages with the shaft coupling at one end portion of the rod-shaped tool body. The shaft joint is rotated by rotating the tool body in a state where the shaft is engaged with the shaft joint.

請求項１に記載の発明によれば、点検窓を開けることで軸継手を目視できるため、カップリングカバー全体を取り外したりすることなく、軸継手の点検などを容易、迅速かつ適正に行うことが可能となる。また、点検窓を閉じることで、軸継手を保護できる。   According to the first aspect of the present invention, since the shaft coupling can be visually observed by opening the inspection window, the shaft coupling can be easily, quickly and appropriately checked without removing the entire coupling cover. It becomes possible. Moreover, a shaft coupling can be protected by closing an inspection window.

請求項２に記載の発明によれば、点検窓の大きさ、位置が、軸継手を手動で回転可能なように設定されているため、点検窓を開けて手や工具を入れることで軸継手を回転させることができる。このため、カップリングカバー全体を取り外す必要がなく、点検窓から軸継手を手動で回転させて、容易、迅速かつ適正に軸継手などの異常の有無を確認することができる。   According to the second aspect of the present invention, since the size and position of the inspection window are set so that the shaft coupling can be manually rotated, the shaft coupling can be obtained by opening the inspection window and inserting a hand or a tool. Can be rotated. For this reason, it is not necessary to remove the entire coupling cover, and the shaft coupling can be manually rotated from the inspection window, and the presence or absence of abnormality such as the shaft coupling can be confirmed easily, quickly and appropriately.

請求項３に記載の発明によれば、ターニング工具の係合部を軸継手に係合させ、例えば工具本体の他端部を回動させることで、てこの原理を利用して軸継手を回転させることができる。このため、直接手で軸継手を回転させる場合に比べて、容易に軸継手を回転させることができる。また、工具本体の長さを長くすることで、軸継手が遠くに位置する場合でも、容易に軸継手を回転させることができる。   According to the third aspect of the present invention, the shaft coupling is rotated using the principle of the lever by engaging the engaging portion of the turning tool with the shaft coupling and rotating the other end of the tool body, for example. Can be made. For this reason, a shaft coupling can be easily rotated compared with the case where a shaft coupling is directly rotated by hand. In addition, by increasing the length of the tool body, the shaft coupling can be easily rotated even when the shaft coupling is located far away.

以下、この発明を図示の実施の形態に基づいて説明する。   The present invention will be described below based on the illustrated embodiments.

図１は、この発明の実施の形態に係るカップリングカバー１が配設された状態（後述する点検窓１１を開けた状態）を示す正面図であり、図２は、図１のＡ−Ａ断面図である。また、図３は、この発明の実施の形態に係るターニング工具２を示す正面図である。   FIG. 1 is a front view showing a state in which a coupling cover 1 according to an embodiment of the present invention is disposed (a state in which an inspection window 11 described later is opened), and FIG. It is sectional drawing. FIG. 3 is a front view showing the turning tool 2 according to the embodiment of the present invention.

カップリングカバー１は、真空ポンプＰの入力軸１０１と電動機Ｍの出力軸１０２および、入力軸１０１と出力軸１０２との接続部である軸継手１０３を上方から覆うようにして保護するカバーである。このカップリングカバー１は鋼板製で、断面が逆Ｕ字状であり、軸１０１、１０２の長手方向に沿って延びている。また、両下端部には水平方向に折り曲げられた設置部１ａが形成され、この設置部１ａには複数のボルト挿入孔（図示せず）が形成されている。そして、設置面（地面）に打たれたアンカーボルト１０４がボルト挿入孔に挿入され、締め付けられることで、カップリングカバー１が設置、固定されている。   The coupling cover 1 is a cover that covers and protects the input shaft 101 of the vacuum pump P and the output shaft 102 of the electric motor M and the shaft coupling 103 that is a connection portion between the input shaft 101 and the output shaft 102 from above. . The coupling cover 1 is made of a steel plate, has a reverse U-shaped cross section, and extends along the longitudinal direction of the shafts 101 and 102. Moreover, the installation part 1a bent in the horizontal direction is formed in both lower end parts, and the several bolt insertion hole (not shown) is formed in this installation part 1a. Then, the anchor bolt 104 struck on the installation surface (ground) is inserted into the bolt insertion hole and tightened, whereby the coupling cover 1 is installed and fixed.

ここで、真空ポンプＰは、火力発電所の復水器内を真空（負圧）にするためのポンプであり、電動機Ｍは真空ポンプＰを駆動するためのモータである。この真空ポンプＰは、復水器内を真空にするものであるため大型であり、これを駆動する電動機Ｍも大型のものとなっている。さらに、カップリングカバー１も、大型の真空ポンプＰの軸継手１０３などをカバーするため、大型のものとなり、また重量物となっている。   Here, the vacuum pump P is a pump for making a vacuum (negative pressure) inside the condenser of the thermal power plant, and the electric motor M is a motor for driving the vacuum pump P. The vacuum pump P is large because it is used to evacuate the condenser, and the electric motor M that drives the condenser is also large. Furthermore, the coupling cover 1 is also large and heavy because it covers the shaft coupling 103 of the large vacuum pump P and the like.

このようなカップリングカバー１の上部（逆Ｕ字の円弧側）には、開閉可能な点検窓１１が設けられている。すなわち、カップリングカバー１の上部に、カップリングカバー１を正面から見て長方形の窓穴１ｂが形成され、この窓穴１ｂと同形状あるいはやや大きい形状の点検窓１１が、丁番１２を介して開閉可能に配設されている。この点検窓１１つまり窓穴１ｂは、軸継手１０３および入力軸１０１と出力軸１０２とに対向して配設されている。さらに、点検窓１１を開けた状態で、軸継手１０３および入力軸１０１と出力軸１０２とを目視できるとともに、軸継手１０３をターニング工具２などで手動で回転できるように、点検窓１１の大きさと位置とが設定されている。また、点検窓１１を閉じると、窓穴１ｂが密閉されるとともに、カップリングカバー１の外形上に沿うように点検窓１１の外形状が設定されている。   An inspection window 11 that can be opened and closed is provided on the upper portion of the coupling cover 1 (on the reverse U-shaped arc side). That is, a rectangular window hole 1b is formed in the upper part of the coupling cover 1 when the coupling cover 1 is viewed from the front, and an inspection window 11 having the same shape as or slightly larger than the window hole 1b is provided via a hinge 12. It can be opened and closed. The inspection window 11, that is, the window hole 1 b is disposed to face the shaft coupling 103 and the input shaft 101 and the output shaft 102. Further, the size of the inspection window 11 is set so that the shaft coupling 103 and the input shaft 101 and the output shaft 102 can be visually observed with the inspection window 11 opened, and the shaft coupling 103 can be manually rotated by the turning tool 2 or the like. The position is set. When the inspection window 11 is closed, the window hole 1 b is sealed, and the outer shape of the inspection window 11 is set along the outer shape of the coupling cover 1.

ターニング工具２は、軸継手１０３を手動で回転させるための工具であり、鉄鋼製で工具本体２１と係合部２２とを備えている。すなわち、丸棒状の工具本体２１の一端部に、丸棒状の第１の係合部２２ａと第２の係合部２２ｂとからなる係合部２２が、工具本体２１と一体的に形成されている。第１の係合部２２ａは、工具本体２１の一端から、工具本体２１の長手方向に対して垂直に延びるように形成されている。第２の係合部２２ｂは、工具本体２１の把持部（他端部）２１ａ寄りから、工具本体２１の長手方向に対して垂直でかつ第１の係合部２２ａと同方向（平行）に延びるように形成されている。また、第１の係合部２２ａと第２の係合部２２ｂとの長さおよび配設位置（間隔）は、係合部２２が軸継手１０３に係合するように設定されている。   The turning tool 2 is a tool for manually rotating the shaft coupling 103 and is made of steel and includes a tool main body 21 and an engaging portion 22. That is, an engagement portion 22 including a first engagement portion 22 a and a second engagement portion 22 b in a round bar shape is formed integrally with the tool body 21 at one end portion of the round rod shape tool body 21. Yes. The first engaging portion 22 a is formed so as to extend perpendicularly to the longitudinal direction of the tool body 21 from one end of the tool body 21. The second engaging portion 22b is perpendicular to the longitudinal direction of the tool body 21 and in the same direction (parallel) as the first engaging portion 22a from the gripping portion (other end portion) 21a of the tool body 21. It is formed to extend. Further, the length and the disposition position (interval) between the first engaging portion 22 a and the second engaging portion 22 b are set so that the engaging portion 22 engages with the shaft coupling 103.

すなわち、この実施の形態では図４に示すように、軸継手１０３が円盤状で、外周縁に盤面に対して垂直に立ち上がった垂直縁部１０３ａを有し、この垂直縁部１０３ａから中心側に円環状の溝部１０３ｂが形成され、この溝部１０３ｂ内にボルト、ナットが配設されている。そして、第１の係合部２２ａを溝部１０３ｂ内に位置させ、第２の係合部２２ｂを垂直縁部１０３ａの外側に位置させて、第１の係合部２２ａと第２の係合部２２ｂとで垂直縁部１０３ａを挟持（把持）するように工具本体２１の把持部２１ａ側を回動させる。これにより、係合部２２が軸継手１０３に係合（軸継手１０３を把持）し、この状態で工具本体２１を軸１０１、１０２中心に所望の方向に回動させると、軸継手１０３が回転するものである。また、第１の係合部２２ａと第２の係合部２２ｂとには、ゴム製でチューブ状の滑り止め２３、２４がそれぞれ装着され、垂直縁部１０３ａを挟持しやすいようになっている。   That is, in this embodiment, as shown in FIG. 4, the shaft coupling 103 has a disk shape, and has a vertical edge 103a that rises perpendicularly to the disk surface on the outer peripheral edge, and from the vertical edge 103a to the center side. An annular groove 103b is formed, and bolts and nuts are disposed in the groove 103b. Then, the first engagement portion 22a is positioned in the groove portion 103b, the second engagement portion 22b is positioned outside the vertical edge portion 103a, and the first engagement portion 22a and the second engagement portion The holding part 21a side of the tool body 21 is rotated so as to sandwich (hold) the vertical edge 103a with 22b. Thereby, the engaging part 22 engages with the shaft coupling 103 (holds the shaft coupling 103), and when the tool body 21 is rotated around the shafts 101 and 102 in a desired direction in this state, the shaft coupling 103 is rotated. To do. Further, the first engaging portion 22a and the second engaging portion 22b are fitted with rubber-made tube-shaped anti-skids 23 and 24, respectively, so that the vertical edge portion 103a can be easily clamped. .

次に、このような構成のカップリングカバー１とターニング工具２の作用、およびこれらを使用した軸継手１０３などの点検方法について説明する。   Next, the operation of the coupling cover 1 and the turning tool 2 having such a configuration, and an inspection method for the shaft joint 103 and the like using these will be described.

まず、通常時においては、カップリングカバー１の点検窓１１を閉じておくことで、真空ポンプＰの入力軸１０１と電動機Ｍの出力軸１０２と軸継手１０３とが保護される。また、設備パトロール時などでは、点検窓１１を開けて、軸継手１０３や軸１０１、１０２を目視点検する。さらに、設備が長期間停止している場合などには、点検窓１１を開けて窓穴１ｂからターニング工具２の係合部２２側を挿入する。そして、上記のようにして係合部２２を軸継手１０３に係合させて、図５に示すように、ターニング工具２で軸継手１０３を回転させながら、軸１０１、１０２や軸継手１０３に錆などの異常が発生しているか否かを点検する。点検後には、カップリングカバー１の点検窓１１を閉じて、軸継手１０３などを保護するものである。   First, in the normal time, the input shaft 101 of the vacuum pump P, the output shaft 102 of the electric motor M, and the shaft coupling 103 are protected by closing the inspection window 11 of the coupling cover 1. Moreover, at the time of equipment patrol, the inspection window 11 is opened, and the shaft coupling 103 and the shafts 101 and 102 are visually inspected. Further, when the equipment has been stopped for a long period of time, the inspection window 11 is opened and the engaging portion 22 side of the turning tool 2 is inserted from the window hole 1b. Then, the engaging portion 22 is engaged with the shaft coupling 103 as described above, and the shafts 101 and 102 and the shaft coupling 103 are rusted while rotating the shaft coupling 103 with the turning tool 2 as shown in FIG. Check whether there is any abnormality such as. After the inspection, the inspection window 11 of the coupling cover 1 is closed to protect the shaft coupling 103 and the like.

以上のように、このカップリングカバー１とターニング工具２、およびこれらを使用した点検方法によれば、点検窓１１を開けることで軸継手１０３などを目視できるため、カップリングカバー１全体を取り外したりすることなく、軸継手１０３の点検などを容易、迅速かつ適正に行うことができる。また、点検窓１１の大きさ、位置が、軸継手１０３を手動で回転可能なように設定されているため、点検窓１１を開けて手やターニング工具２を入れることで軸継手１０３を回転させることができる。   As described above, according to the coupling cover 1 and the turning tool 2 and the inspection method using them, the shaft joint 103 and the like can be visually observed by opening the inspection window 11, so that the entire coupling cover 1 can be removed. Without this, the inspection of the shaft coupling 103 can be performed easily, quickly and appropriately. In addition, since the size and position of the inspection window 11 are set so that the shaft coupling 103 can be manually rotated, the shaft coupling 103 is rotated by opening the inspection window 11 and inserting a hand or turning tool 2. be able to.

さらに、ターニング工具２の係合部２２を軸継手１０３に係合させ、工具本体２１の把持部２１ａ側を回動させることで、てこの原理を利用して軸継手１０３を回転させることができる。このため、直接手で軸継手１０３を回転させる場合に比べて、容易に軸継手１０３を回転させることができる。また、カップリングカバー１の大きさなどに応じて工具本体２１の長さを長くすることで、軸継手１０３が窓穴１ｂから遠くに位置する場合でも、容易に軸継手１０３を回転させることができる。   Further, by engaging the engaging portion 22 of the turning tool 2 with the shaft joint 103 and rotating the gripping portion 21a side of the tool body 21, the shaft joint 103 can be rotated using the lever principle. . For this reason, compared with the case where the shaft coupling 103 is directly rotated by hand, the shaft coupling 103 can be easily rotated. Further, by increasing the length of the tool body 21 according to the size of the coupling cover 1 and the like, the shaft coupling 103 can be easily rotated even when the shaft coupling 103 is located far from the window hole 1b. it can.

以上、この発明の実施の形態について詳述してきたが、具体的な構成は上記の実施の形態に限られるものではなく、この発明の要旨を逸脱しない範囲の設計の変更等があっても、この発明に含まれる。例えば、上記の実施の態様では、点検窓１１を軸継手１０３と軸１０１、１０２とに対向して配設しているが、軸継手１０３の形状、大きさや点検内容などに応じて、軸継手１０３のみに対向するように配設してもよく、カップリングカバー１の長手方向のほぼ全長にわたって配設するようにしてもよい。また、ターニング工具２の係合部２２が２本の直線棒状の第１の係合部２２ａと第２の係合部２２ｂとによって構成されているが、このような構成に限らない。つまり、軸継手１０３の形状や大きさに応じた形状、大きさとし、軸継手１０３と係合して、軸継手１０３を挟持、把持できるものであればよい。   As mentioned above, although the embodiment of the present invention has been described in detail, the specific configuration is not limited to the above-described embodiment, and even if there is a design change or the like without departing from the gist of the present invention, It is included in this invention. For example, in the above-described embodiment, the inspection window 11 is disposed so as to face the shaft coupling 103 and the shafts 101 and 102. However, depending on the shape, size, inspection contents, etc. of the shaft coupling 103, It may be arranged so as to face only 103, or may be arranged over almost the entire length of the coupling cover 1 in the longitudinal direction. Moreover, although the engaging part 22 of the turning tool 2 is comprised by the two 1st engaging parts 22a and the 2nd engaging part 22b of linear rod shape, it is not restricted to such a structure. In other words, any shape and size corresponding to the shape and size of the shaft coupling 103 may be used as long as they can be engaged with the shaft coupling 103 to hold and grip the shaft coupling 103.

この発明の実施の形態に係るカップリングカバーが配設された状態を示す正面図である。It is a front view which shows the state by which the coupling cover which concerns on embodiment of this invention was arrange | positioned. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. この発明の実施の形態に係るターニング工具を示す正面図である。It is a front view which shows the turning tool which concerns on embodiment of this invention. 図３のターニング工具の係合部を軸継手に係合させた状態を示す斜視図である。It is a perspective view which shows the state which engaged the engaging part of the turning tool of FIG. 3 with the shaft coupling. 図３のターニング工具で軸継手を回転させている状態を示す正面図である。It is a front view which shows the state which rotates the shaft coupling with the turning tool of FIG. 従来のカップリングカバーが配設された状態を示す正面図である。It is a front view which shows the state by which the conventional coupling cover was arrange | positioned. 図６のＢ−Ｂ断面図である。It is BB sectional drawing of FIG.

符号の説明Explanation of symbols

１ カップリングカバー
１ｂ 窓穴
１１ 点検窓
１２ 丁番
２ ターニング工具
２１ 工具本体
２２ 係合部
２２ａ 第１の係合部
２２ｂ 第２の係合部
２３、２４ 滑り止め
１０１ 入力軸
１０２ 出力軸
１０３ 軸継手
１０３ａ 垂直縁部
１０３ｂ 溝部
Ｐ 真空ポンプ
Ｍ 電動機
DESCRIPTION OF SYMBOLS 1 Coupling cover 1b Window hole 11 Inspection window 12 Hinge 2 Turning tool 21 Tool main body 22 Engagement part 22a 1st engagement part 22b 2nd engagement part 23, 24 Anti-slip 101 Input shaft 102 Output shaft 103 axis Joint 103a Vertical edge 103b Groove P Vacuum pump M Electric motor

Claims (3)

軸継手を上方から覆うようにして配設されるカップリングカバーにおいて、開閉可能で開けた状態で前記軸継手を目視可能な点検窓を設けたことを特徴とするカップリングカバー。   A coupling cover arranged so as to cover the shaft coupling from above, wherein an inspection window is provided that allows the shaft coupling to be viewed in an openable and open state. 前記点検窓を開けて前記軸継手を手動で回転可能なように、前記点検窓の大きさおよび位置の少なくとも一方が設定されていることを特徴とする請求項１に記載のカップリングカバー。   The coupling cover according to claim 1, wherein at least one of a size and a position of the inspection window is set so that the inspection window can be opened and the shaft coupling can be manually rotated. 軸継手を手動で回転させるためのターニング工具であって、
棒状の工具本体の一端部に、前記軸継手に係合する係合部を備え、この係合部を前記軸継手に係合させた状態で前記工具本体を回動させることで前記軸継手が回転することを特徴とするターニング工具。
A turning tool for manually rotating a shaft coupling,
An engagement portion that engages with the shaft coupling is provided at one end of the rod-shaped tool body, and the shaft coupling is rotated by rotating the tool body with the engagement portion engaged with the shaft coupling. A turning tool characterized by rotating.
JP2007274671A 2007-10-23 2007-10-23 Coupling cover and turning tool Pending JP2009103192A (en)

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JP2011192111A Division JP5389125B2 (en) 2011-09-02 2011-09-02 Rotating method of shaft coupling

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018123929A (en) * 2017-02-03 2018-08-09 株式会社荏原製作所 Coupling guard and machine device
JP2019113135A (en) * 2017-12-25 2019-07-11 株式会社荏原製作所 Coupling guard and machine device

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JPS5230542A (en) * 1975-09-04 1977-03-08 Kenichi Suzuki Method of making oving eyeballs for dolls or anumal toys
JPS5399455A (en) * 1977-02-08 1978-08-30 Thomson Csf Insulating material consisting of thin film polymer* method of making thin film* and electric capacitor containing same insulating material
JPS6077265A (en) * 1983-10-05 1985-05-01 Hitachi Ltd Vector processor
JPS63132125A (en) * 1986-11-21 1988-06-04 Matsushita Electric Ind Co Ltd Temperature recorder
JPS63140146A (en) * 1986-11-28 1988-06-11 Endo Haguruma Seisakusho:Kk Speed change gear by fluid clutch
JPH03102263A (en) * 1989-09-18 1991-04-26 Hitachi Ltd Measuring apparatus of air direction and air velocity in tunnel
JPH07197488A (en) * 1993-12-28 1995-08-01 Komatsu Ltd Facing cover for hydraulic shovel
JPH07247986A (en) * 1994-03-07 1995-09-26 Mitsubishi Denki Bill Techno Service Kk Pump device
JP2004036776A (en) * 2002-07-04 2004-02-05 Star Seiki Co Ltd Safety mechanism of industrial machinery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018123929A (en) * 2017-02-03 2018-08-09 株式会社荏原製作所 Coupling guard and machine device
JP2019113135A (en) * 2017-12-25 2019-07-11 株式会社荏原製作所 Coupling guard and machine device

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