JP5358325B2 - Electric motor - Google Patents

Electric motor Download PDF

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JP5358325B2
JP5358325B2 JP2009161593A JP2009161593A JP5358325B2 JP 5358325 B2 JP5358325 B2 JP 5358325B2 JP 2009161593 A JP2009161593 A JP 2009161593A JP 2009161593 A JP2009161593 A JP 2009161593A JP 5358325 B2 JP5358325 B2 JP 5358325B2
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mounting
leg
leg member
bolt
load
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JP2011019322A (en
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直 若杉
知巳 池上
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Toshiba Mitsubishi Electric Industrial Systems Corp
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Description

本発明は、電動機に関する。 The present invention relates to an electric motor.

電動機を据え付けるにあたっては、通常、水平な据え付け基礎部に載置して、据え付けボルトなどによって据え付け基礎部に固定する。また、電動機のフレームは複雑な形状であるため、これを金属製鋳物で作ることが多くある（特許文献１、特許文献２）。   When installing the electric motor, it is usually placed on a horizontal installation base and fixed to the installation base with installation bolts or the like. Further, since the frame of the electric motor has a complicated shape, it is often made of a metal casting (Patent Document 1 and Patent Document 2).

特開平８−２０５４４８号公報JP-A-8-205448 特公平１−５０１８１号公報Japanese Patent Publication No. 1-50181

たとえば既設の旧型電動機を取り外して新型電動機で置き換える場合、据え付け基礎部には旧型電動機に適合する据え付けボルト受けネジ穴が設けられている。そのような場合に、既存のネジ穴の位置に合わせて新型電動機のフレームに据え付けボルトが通る貫通孔を設ける必要がある。   For example, when an existing old motor is removed and replaced with a new motor, a mounting bolt receiving screw hole suitable for the old motor is provided in the installation base. In such a case, it is necessary to provide a through-hole through which the installation bolt passes in the frame of the new motor in accordance with the position of the existing screw hole.

ところが、鋳物のフレームの場合、据え付けボルトが通る貫通孔自体はドリルにより加工することができるとしても、脚部リブなどが干渉することなどにより、既存のネジ穴位置（据え付けボルト位置）に合わせることができない場合もある。この場合、据え付けボルトが通る貫通孔のフレーム上の位置を既存のネジ穴位置に合わせるためには鋳型の改造が必要になることもあり、そのためには大きな手間がかかり、大幅なコストアップの要因になる。   However, in the case of a cast frame, even though the through-hole itself through which the installation bolt passes can be machined with a drill, it can be adjusted to the existing screw hole position (installation bolt position) due to interference with leg ribs, etc. May not be possible. In this case, it may be necessary to modify the mold in order to align the position of the through hole through which the mounting bolt passes on the frame with the existing screw hole position, which requires a lot of work and causes a significant cost increase. become.

この発明はかかる事情に鑑みてなされたものであって、電動機のフレームの鋳型を改造することなく、据え付け基礎部に適合させて電動機を据え付けることができるようにすることを目的とする。   The present invention has been made in view of such circumstances, and an object of the present invention is to make it possible to install an electric motor in conformity with an installation base without modifying a mold of a frame of the electric motor.

上記目的を達成するために、本発明に係る電動機は、水平方向に延びる据え付け基礎部の上面に載置され、据え付けボルトによって前記据え付け基礎部に固定される電動機であって、金属製鋳物からなり脚取り付け部が外側に突出したフレームと、取り付けネジによって前記脚取り付け部に着脱可能であって、前記脚取り付け部に取り付けられた状態で前記据え付けボルトが貫通しうる据え付けボルト貫通孔が形成され、前記脚取り付け部に取り付けられた状態で、前記据え付け基礎部の上面に接触して当該電動機の荷重を支持してその荷重を前記据え付け基礎部に伝達するとともに、前記据え付けボルト貫通孔を貫通する前記据え付けボルトにより前記据え付け基礎部に固定されるように構成された鋼板製の脚と、を有し、前記取り付けネジの位置と前記据え付けボルト貫通孔の位置とが当該電動機の回転軸方向にずれていて、かつ、前記脚は２本あって、これらの脚が前記回転軸の水平方向位置をはさんで両側にその回転軸に平行に延びていて、前記取り付けネジは、各脚に少なくとも２本取り付けられ、前記据え付けボルト貫通孔は各脚に少なくとも２個が形成されていて、かつ、前記２本の脚それぞれが、前記取り付けネジが貫通する取り付けネジ貫通孔が形成されて前記取り付けネジによって前記脚取り付け部に着脱され、前記脚取り付け部に取り付けられた状態で前記脚取り付け部の荷重を直接受ける第１の脚部材と、鉛直方向に延びて、前記第１の脚部材に溶接されて前記第１の脚部材とともに前記脚取り付け部の荷重を直接受けるとともに前記第１の脚部材の加重も受ける第２の脚部材と、前記第２の脚部材の下端部に溶接されて水平方向に延びて前記据え付けボルト貫通孔が形成されて前記据え付けボルトによって前記基礎部に固定されて前記第２の脚部材の加重を前記基礎部に伝える第３の脚部材と、を有すること、を特徴とする。 In order to achieve the above object, an electric motor according to the present invention is an electric motor that is mounted on an upper surface of a horizontal mounting base and is fixed to the mounting base with a mounting bolt, and is made of a metal casting. A frame in which a leg mounting portion protrudes outward and a mounting bolt through hole that can be attached to and detached from the leg mounting portion by a mounting screw and through which the mounting bolt can pass while attached to the leg mounting portion are formed. is, in a state of being attached to the front Symbol leg mounting portion, thereby transmitting the load to the mounting base portion to support the load of the motor in contact with the upper surface of the front Symbol mounting base portion, the mounting bolt holes have a, and steel legs that are configured to be secured to the front Symbol mounting base portion Ri by the mounting bolts passing through the mounting thread And the position of the mounting bolt through hole are displaced in the direction of the rotation axis of the motor, and there are two legs, and these legs are on both sides of the horizontal position of the rotation axis. Extending parallel to the rotation axis, at least two of the mounting screws are attached to each leg, at least two of the mounting bolt through holes are formed on each leg, and each of the two legs However, a mounting screw through-hole through which the mounting screw passes is formed, is attached to and detached from the leg mounting portion by the mounting screw, and receives the load of the leg mounting portion directly in a state of being attached to the leg mounting portion. A leg member, which extends in the vertical direction, is welded to the first leg member and directly receives the load of the leg attachment portion together with the first leg member, and is loaded with the first leg member A second leg member to be received, welded to a lower end portion of the second leg member and extending in a horizontal direction to form the installation bolt through hole, and fixed to the base portion by the installation bolt, and And a third leg member for transmitting the weight of the leg member to the base portion .

この発明によれば、電動機のフレームの鋳型を改造することなく、据え付け基礎部に適合させて電動機を据え付けることができる。   According to the present invention, the electric motor can be installed in conformity with the installation base without modifying the mold of the frame of the electric motor.

本発明に係る電動機の第１の実施形態を据え付け基礎部に固定した状態を軸方向から見た立面図であって、下半部のカバーを取り外した状態で示す図である。It is the elevation which looked at the state which fixed the 1st Embodiment of the electric motor which concerns on this invention to the installation base part from the axial direction, Comprising: It is a figure shown in the state which removed the cover of the lower half part. 図１の電動機の側面図である。It is a side view of the electric motor of FIG. 本発明に係る電動機の第２の実施形態を据え付け基礎部に固定した状態について、下半部を軸方向から見た立面図であって、カバーを取り外した状態で示す図である。It is the figure which looked at the lower half part from the axial direction about the state which fixed the 2nd Embodiment of the electric motor which concerns on this invention to the installation base part, Comprising: It is a figure shown in the state which removed the cover.

以下、図面を参照して、本発明に係る電動機の実施形態について説明する。ここで、同一または類似の部分には共通の符号を付して、重複説明は省略する。   Embodiments of an electric motor according to the present invention will be described below with reference to the drawings. Here, the same or similar parts are denoted by common reference numerals, and redundant description is omitted.

［第１の実施形態］
図１は、本発明に係る電動機の第１の実施形態を据え付け基礎部に固定した状態を軸方向から見た立面図であって、下半部のカバーを取り外した状態で示す図である。また、図２は図１の電動機の側面図である。 [First Embodiment]
FIG. 1 is an elevational view of an electric motor according to a first embodiment of the present invention fixed to an installation base, as viewed from the axial direction, with a lower half cover removed. . FIG. 2 is a side view of the electric motor of FIG.

この電動機１０は、例えば三相誘導電動機であって、水平面を有する据え付け基礎部１１の上に据え付けられ固定されている。電動機１０の回転子は水平に延びる回転軸１２周りに回転可能に配置され、その外側に固定子〈図示せず〉が配置されている。固定子の外側は金属鋳物製のほぼ円筒状のフレーム１３で覆われている。フレーム１３の外表面には多数の冷却フィン１４が形成されている。冷却フィン１４の外側は肉薄鋼板製のカバー１５で覆われ、フレーム１３とカバー１５には、ファン〈図示せず〉により冷却空気が流れるように構成されている。   The electric motor 10 is, for example, a three-phase induction motor, and is installed and fixed on an installation base portion 11 having a horizontal plane. The rotor of the electric motor 10 is disposed so as to be rotatable around a rotation shaft 12 extending horizontally, and a stator (not shown) is disposed outside the rotor. The outside of the stator is covered with a substantially cylindrical frame 13 made of a metal casting. A large number of cooling fins 14 are formed on the outer surface of the frame 13. The outer side of the cooling fin 14 is covered with a cover 15 made of a thin steel plate, and cooling air flows through the frame 13 and the cover 15 by a fan (not shown).

フレーム１３の下部には２本の脚取り付け部１６がカバー１５から下方外側に向けて突出して形成されている。脚取り付け部１６は、回転軸１２の真下の位置を両側から対称にはさむように、回転軸１２に平行に配置されている。脚取り付け部１６には、取り付けネジ１７によって、脚取り付け部１６に沿って延びる脚１８が取り付けられている。脚１８は鋼板を折り曲げて形成され、据え付けボルト１９が貫通する複数の貫通孔２０が形成されている。   Two leg attachment portions 16 are formed on the lower portion of the frame 13 so as to protrude downward from the cover 15. The leg attachment portion 16 is arranged in parallel to the rotation shaft 12 so as to sandwich the position directly below the rotation shaft 12 from both sides. A leg 18 extending along the leg attachment portion 16 is attached to the leg attachment portion 16 by an attachment screw 17. The legs 18 are formed by bending a steel plate, and a plurality of through holes 20 through which the installation bolts 19 pass are formed.

取り付けネジ１７によって、脚取り付け部１６に脚１８を取り付ける作業は、たとえば電動機製造工場内で行なわれ、脚１８が取り付けられた電動機１０が据え付け現場に搬送されて、据え付け基礎部１１の上に載置される。据え付け基礎部１１の上面にはネジ穴が形成されていて、このネジ穴に重なる位置に脚１８の貫通孔２０が配置される。このとき電動機１０の荷重は、脚取り付け部１６から脚１８を経て据え付け基礎部１１に伝達される。   The operation of attaching the legs 18 to the leg attachment portions 16 with the attachment screws 17 is performed, for example, in an electric motor manufacturing factory, and the motor 10 to which the legs 18 are attached is transported to the installation site and mounted on the installation base portion 11. Placed. A screw hole is formed in the upper surface of the mounting base portion 11, and the through hole 20 of the leg 18 is disposed at a position overlapping the screw hole. At this time, the load of the electric motor 10 is transmitted from the leg attachment portion 16 to the installation base portion 11 via the legs 18.

その後に、脚１８の貫通孔２０の上から据え付けボルト１９が通されて、据え付け基礎部１１のネジ穴と螺合され締め付けられることにより、脚１８が据え付け基礎部１１に固定される。   Thereafter, the installation bolt 19 is passed from above the through hole 20 of the leg 18, screwed into the screw hole of the installation base portion 11, and tightened, whereby the leg 18 is fixed to the installation base portion 11.

図２に示すように、取り付けネジ１７の位置と据え付けボルト１９の位置は回転軸方向にずれていることが好ましい。   As shown in FIG. 2, it is preferable that the position of the attachment screw 17 and the position of the installation bolt 19 are shifted in the direction of the rotation axis.

この実施形態によれば、据え付け基礎部１１側ですでに決まっている据え付けボルト１９の固定位置に適合させて電動機側で調整するに当たり、金属製鋳物のフレーム１３の鋳型を変更する必要がなく、鋼板を折り曲げて形成される脚１８の形状・寸法および据え付けボルト１９が通る貫通孔２０の位置を適宜選択することにより、容易に対応できる。   According to this embodiment, it is not necessary to change the mold of the frame 13 of the metal casting in order to adjust the fixing position of the installation bolt 19 already determined on the installation base portion 11 side and adjust on the motor side, This can be easily handled by appropriately selecting the shape and dimensions of the legs 18 formed by bending the steel plate and the positions of the through holes 20 through which the installation bolts 19 pass.

また、回転軸１２の高さの調整についても、金属製鋳物のフレーム１３の形状・寸法を変えることなく、鋼板製の脚１８の形状・寸法を適宜選択することにより、容易に対応できる。   The height of the rotary shaft 12 can be easily adjusted by appropriately selecting the shape and dimensions of the steel plate legs 18 without changing the shape and dimensions of the metal casting frame 13.

また、取り付けネジ１７の位置と据え付けボルト１９の位置が回転軸方向にずれていることにより、据え付けボルト１９を締め付ける際に取り付けネジ１７が作業の邪魔になるのを防ぐことができる。   Further, since the position of the mounting screw 17 and the position of the installation bolt 19 are shifted in the rotation axis direction, it is possible to prevent the mounting screw 17 from interfering with work when the mounting bolt 19 is tightened.

［第２の実施形態］
図３は、本発明に係る電動機の第２の実施形態を据え付け基礎部に固定した状態について、下半部を軸方向から見た立面図であって、カバーを取り外した状態で示す図である。 [Second Embodiment]
FIG. 3 is an elevational view of the lower half portion viewed from the axial direction in a state where the second embodiment of the electric motor according to the present invention is fixed to the installation base portion, and is a view showing a state where the cover is removed. is there.

この実施形態では、脚１８が、第１、第２、第３の脚部材１８ａ，１８ｂ，１８ｃからできている。各脚部材１８ａ，１８ｂ，１８ｃは鋼板を加工して形成され、互いに溶接によって結合されている。   In this embodiment, the leg 18 is made of first, second and third leg members 18a, 18b and 18c. Each leg member 18a, 18b, 18c is formed by processing a steel plate, and is joined to each other by welding.

第１の脚部材１８ａには、取り付けネジ１７が貫通する貫通孔が形成されて、取り付けネジ１７によって第１の脚部材１８ａと脚取り付け部１６が締結されるとともに、第１の脚部材１８ａと第２の脚部材１８ｂとで脚取り付け部１６の荷重を直接受けるようになっている。また、第２の脚部材１８ｂは鉛直方向に延びて荷重を支持する。さらに第２の脚部材１８ｂは水平方向に延びる第３の脚部材１８ｃに載置され固定されている。第３の脚部材１８ｃには据え付けボルト１９が通る貫通孔２０が形成されている。   The first leg member 18a is formed with a through-hole through which the attachment screw 17 passes, and the first leg member 18a and the leg attachment portion 16 are fastened by the attachment screw 17, and the first leg member 18a The load of the leg attachment portion 16 is directly received by the second leg member 18b. The second leg member 18b extends in the vertical direction and supports the load. Further, the second leg member 18b is placed and fixed on a third leg member 18c extending in the horizontal direction. A through-hole 20 through which the installation bolt 19 passes is formed in the third leg member 18c.

このような構成によれば、据え付けボルト１９の水平方向位置の調整は第３の脚部材１８ｃの長さの調整により行ない、回転軸１２の高さの調整は第２の脚部材１８ｂの長さの調整によって行なうことができる。   According to such a configuration, the horizontal position of the installation bolt 19 is adjusted by adjusting the length of the third leg member 18c, and the height of the rotary shaft 12 is adjusted by the length of the second leg member 18b. It can be done by adjusting.

［他の実施形態］
以上説明した実施形態は単なる例示であって、本発明はこれらに限定されるものではない。 [Other Embodiments]
The embodiments described above are merely examples, and the present invention is not limited to these.

たとえば、上記実施形態の説明では、据え付け基礎部１１にネジ穴が形成されていて、脚１８の貫通孔２０を通して据え付けボルト１９を据え付け基礎部１１のネジ穴にねじ込むものとしたが、あらかじめ、据え付け基礎部１１に植え込みボルト〈図示せず〉を固定しておき、この植え込みボルトが脚１８の貫通孔２０を通るように電動機を載置した後に、脚１８の上から植え込みボルトにナットを螺合させて締め付けるような構成とすることもできる。   For example, in the description of the above embodiment, a screw hole is formed in the installation base 11 and the installation bolt 19 is screwed into the screw hole of the installation base 11 through the through hole 20 of the leg 18. A planting bolt (not shown) is fixed to the base 11, and after placing the electric motor so that the planted bolt passes through the through hole 20 of the leg 18, a nut is screwed onto the planting bolt from above the leg 18. It can also be set as the structure which makes it tighten.

１０ 電動機
１１ 据え付け基礎部
１２ 回転軸
１３ フレーム
１４ 冷却フィン
１５ カバー
１６ 脚取り付け部
１７ 取り付けネジ
１８ 脚
１８ａ，１８ｂ，１８ｃ 脚部材
１９ 据え付けボルト
２０ 貫通孔 DESCRIPTION OF SYMBOLS 10 Electric motor 11 Installation base part 12 Rotating shaft 13 Frame 14 Cooling fin 15 Cover 16 Leg attachment part 17 Installation screw 18 Leg 18a, 18b, 18c Leg member 19 Installation bolt 20 Through-hole

Claims (1)

水平方向に延びる据え付け基礎部の上面に載置され、据え付けボルトによって前記据え付け基礎部に固定される電動機であって、
金属製鋳物からなり脚取り付け部が外側に突出したフレームと、
取り付けネジによって前記脚取り付け部に着脱可能であって、前記脚取り付け部に取り付けられた状態で前記据え付けボルトが貫通しうる据え付けボルト貫通孔が形成され、前記脚取り付け部に取り付けられた状態で、前記据え付け基礎部の上面に接触して当該電動機の荷重を支持してその荷重を前記据え付け基礎部に伝達するとともに、前記据え付けボルト貫通孔を貫通する前記据え付けボルトにより前記据え付け基礎部に固定されるように構成された鋼板製の脚と、
を有し、
前記取り付けネジの位置と前記据え付けボルト貫通孔の位置とが当該電動機の回転軸方向にずれていて、かつ、
前記脚は２本あって、これらの脚が前記回転軸の水平方向位置をはさんで両側にその回転軸に平行に延びていて、前記取り付けネジは、各脚に少なくとも２本取り付けられ、前記据え付けボルト貫通孔は各脚に少なくとも２個が形成されていて、かつ、
前記２本の脚それぞれが、
前記取り付けネジが貫通する取り付けネジ貫通孔が形成されて前記取り付けネジによって前記脚取り付け部に着脱され、前記脚取り付け部に取り付けられた状態で前記脚取り付け部の荷重を直接受ける第１の脚部材と、
鉛直方向に延びて、前記第１の脚部材に溶接されて前記第１の脚部材とともに前記脚取り付け部の荷重を直接受けるとともに前記第１の脚部材の加重も受ける第２の脚部材と、
前記第２の脚部材の下端部に溶接されて水平方向に延びて前記据え付けボルト貫通孔が形成されて前記据え付けボルトによって前記基礎部に固定されて前記第２の脚部材の加重を前記基礎部に伝える第３の脚部材と、
を有すること、を特徴とする電動機。 An electric motor mounted on the upper surface of a horizontal mounting base and fixed to the mounting base by a mounting bolt;
A frame Riashi mounting portion protrudes outward such a metal casting,
A by attachment screw is removably attached to the leg mounting portion, the state in which mounting bolt through hole through which the mounting bolt can penetrate in a state attached to the foot mounting portion is formed, it mounted in front Symbol leg mounting portion in, as well as transmits the load to the mounting base portion in contact with the upper surface of the front Symbol mounting base portion to support the load of the motor, the mounting bolt holes by Ri before Symbol mounted to the mounting bolts passing through Steel plate legs configured to be fixed to the foundation,
I have a,
The position of the mounting screw and the position of the mounting bolt through hole are displaced in the direction of the rotation axis of the motor; and
There are two legs, and these legs extend on both sides of the rotation axis in parallel with the rotation axis, and at least two of the mounting screws are attached to each leg. At least two mounting bolt through holes are formed on each leg, and
Each of the two legs
A first leg member that is formed with an attachment screw through hole through which the attachment screw passes, is attached to and detached from the leg attachment portion by the attachment screw, and directly receives the load of the leg attachment portion in a state of being attached to the leg attachment portion. When,
A second leg member that extends in the vertical direction and is welded to the first leg member to receive the load of the leg mounting portion together with the first leg member and also receives the load of the first leg member;
The lower end portion of the second leg member is welded and extends in the horizontal direction to form the installation bolt through hole, and is fixed to the base portion by the installation bolt to load the second leg member. A third leg member to convey to,
An electric motor characterized by comprising:
JP2009161593A 2009-07-08 2009-07-08 Electric motor Expired - Fee Related JP5358325B2 (en)

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KR102309981B1 (en) * 2020-01-09 2021-10-07 효성중공업 주식회사 Frame pin for high voltage motor
CN113890262B (en) * 2021-09-08 2024-05-17 湖北丰瑞德机械有限公司 Translation door motor fixed base convenient to dismantle installation

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JPH08251859A (en) * 1995-03-14 1996-09-27 Hitachi Ltd Rotating electric machine
JPH09247885A (en) * 1996-03-12 1997-09-19 Matsushita Electric Ind Co Ltd Motor with leg

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