JP4636362B2 - Electric motor - Google Patents

Electric motor Download PDF

Info

Publication number
JP4636362B2
JP4636362B2 JP2004241893A JP2004241893A JP4636362B2 JP 4636362 B2 JP4636362 B2 JP 4636362B2 JP 2004241893 A JP2004241893 A JP 2004241893A JP 2004241893 A JP2004241893 A JP 2004241893A JP 4636362 B2 JP4636362 B2 JP 4636362B2
Authority
JP
Japan
Prior art keywords
load side
stator
support base
fixed
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2004241893A
Other languages
Japanese (ja)
Other versions
JP2006060955A (en
Inventor
美勝 中村
辰夫 岡本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yaskawa Electric Corp filed Critical Yaskawa Electric Corp
Priority to JP2004241893A priority Critical patent/JP4636362B2/en
Priority to CNB2005100966357A priority patent/CN100394674C/en
Publication of JP2006060955A publication Critical patent/JP2006060955A/en
Application granted granted Critical
Publication of JP4636362B2 publication Critical patent/JP4636362B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Motor Or Generator Frames (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Description

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

図７は、第１の従来技術における回転電機を示す斜視図である。
図７において、２１は固定子、２２は反負荷側ブラケット、２３は反負荷側支持台、２４は負荷側支持台、２５は全体支持台、２６は回転軸、２７はボルト、２８は固定台である。
固定子２１の負荷側（回転軸２６が出ており負荷が加わる方向）には負荷側支持台２４が、反負荷側（負荷側と反対の方向）には反負荷側支持台２３が固定され、前記負荷側支持台２４と反負荷側支持台２３は全体支持台２５に固定され、前記全体支持台２５は固定台２８に据え付けられる。特に、回転軸２６に下向きの荷重が加わるエレベータ用巻上機では、前記固定子２１の負荷側が下向きに、反負荷側が上向きに変形しないように固定する必要があり、ここでは負荷側支持台２４と反負荷側支持台２３による両端支持で、前記全体支持台２５の軸方向の長さＬ１の長さで固定したものとなる。
図８は、第２の従来技術における回転電機を示す側断面図である（特許文献１参照）。
図８において、１は機台、２Ａ、２Ｂは鉄心押え板、３は固定子、４は鏡板、４ａは排気穴、５は外部カバー、５ａは吸入口、６は内部カバー、７Ａ、７Ｂは軸受、７ａ、７ｂはころがり軸受、８Ｂは軸受台、９は回転軸、９ａはキー、１０は網車、１０ａはボス部、１１は回転子鉄心、１１ａは冷却穴、１２は固定子巻線、１４は通風口、１５は排気管、１５aは排気ファン、１６、１６ａ、１７はダクト、１９は通風管である。
この第２の従来技術は、回転軸９に装着された網車１０を含むエレベータ用巻上機であり、回転電機を外部カバー５で覆い、排気ファン１５aにより外気を導入して、固定子巻線１２と回転子鉄心１１を冷却するものである。
この場合は、固定子３の両端に鉄心押え板２Ａ、２Ｂが固定されるが、これだけでは網車１０に加わる下向きの荷重に耐えられず回転電機が変形する。
そこで、回転軸９を長くし、前記回転軸９の先端部に軸受台８Ｂ及び軸受７Ｂを設け、鉄心押さえ板２Ａから軸受台８Ｂまでの長さＬ２の長さで固定している。
特開平９−５６１２０号公報（第７頁、図１） FIG. 7 is a perspective view showing a rotating electrical machine according to the first prior art.
In FIG. 7, 21 is a stator, 22 is an anti-load side bracket, 23 is an anti-load side support base, 24 is a load side support base, 25 is an overall support base, 26 is a rotating shaft, 27 is a bolt, and 28 is a fixed base. It is.
A load-side support base 24 is fixed to the load side of the stator 21 (the direction in which the rotary shaft 26 comes out and a load is applied), and an anti-load-side support base 23 is fixed to the anti-load side (the direction opposite to the load side). The load-side support base 24 and the anti-load-side support base 23 are fixed to an overall support base 25, and the overall support base 25 is installed on a fixed base 28. In particular, in an elevator hoisting machine in which a downward load is applied to the rotary shaft 26, it is necessary to fix the stator 21 so that the load side does not deform downward and the anti-load side does not deform upward. In other words, both ends are supported by the anti-load side support base 23, and the whole support base 25 is fixed to the length L1 in the axial direction.
FIG. 8 is a side sectional view showing a rotating electrical machine according to the second prior art (see Patent Document 1).
In FIG. 8, 1 is a machine base, 2A and 2B are iron core holding plates, 3 is a stator, 4 is a mirror plate, 4a is an exhaust hole, 5 is an outer cover, 5a is an inlet, 6 is an inner cover, and 7A and 7B are Bearings 7a and 7b are rolling bearings, 8B is a bearing base, 9 is a rotary shaft, 9a is a key, 10 is a mesh wheel, 10a is a boss, 11 is a rotor core, 11a is a cooling hole, and 12 is a stator winding. , 14 are ventilation openings, 15 is an exhaust pipe, 15a is an exhaust fan, 16, 16a and 17 are ducts, and 19 is a ventilation pipe.
This second prior art is an elevator hoisting machine including a mesh wheel 10 mounted on a rotating shaft 9, and the rotating electric machine is covered with an outer cover 5, and outside air is introduced by an exhaust fan 15a, and a stator winding is performed. The wire 12 and the rotor core 11 are cooled.
In this case, the iron core holding plates 2A and 2B are fixed to both ends of the stator 3, but this alone cannot withstand the downward load applied to the net 10 and the rotating electric machine is deformed.
Therefore, the rotating shaft 9 is lengthened, and the bearing base 8B and the bearing 7B are provided at the tip of the rotating shaft 9, and are fixed at a length L2 from the core holding plate 2A to the bearing base 8B.
JP-A-9-56120 (page 7, FIG. 1)

しかしながら、このような従来技術においては、次のような問題がある。
(1) 第１の従来技術による回転電機の構造では、回転電機の変形を防止するために全体支持台の軸方向の長さを短くできず、固定台の長さ、つまり据付に必要な長さは長く確保する必要がある。
(2) 第２の従来技術による回転電機の構造では、回転軸が長くなり軸受台が増設され、回転電機及び装置として大きく重いものとなり、据付に必要な長さはさらに長くなり、組み立て時間も長くなる。
本発明は、このような問題を解決するためになされたもので、部品及び装置を小型軽量化することができ、据付長さを短くすることができ、さらに組み立て時間を短くすることができる回転電機を提供することを目的とするものである。 However, such conventional techniques have the following problems.
(1) In the structure of the rotating electrical machine according to the first prior art, the axial length of the entire support base cannot be shortened in order to prevent the deformation of the rotating electrical machine, but the length of the fixed base, that is, the length required for installation It is necessary to secure it for a long time.
(2) In the structure of the rotating electrical machine according to the second prior art, the rotating shaft becomes longer and the bearing stand is added, making the rotating electrical machine and equipment larger and heavier, the length required for installation is further increased, and the assembly time is also increased. become longer.
The present invention has been made to solve such a problem, and can reduce the size and weight of parts and devices, shorten the installation length, and further reduce the assembly time. The purpose is to provide an electric machine.

上記問題を解決するため、本発明は、次のように構成したものである。
請求項１に記載の発明は、エレベータ用巻上機に用いられる電動機であって、筒状の固定子鉄心に固定子コイルを装着して構成された固定子と、前記固定子の負荷側に固定され、水平面を有する固定台に対して上方から固定される支持台と、前記固定子の反負荷側に固定された反負荷側ブラケットと、水平方向に向けられて前記支持台と前記反負荷側ブラケットとに軸受を介して回転自在に支持された回転軸を有し、前記固定子の内周面に、径方向の空隙を介して対向配置された回転子とを備え、前記反負荷側ブラケットを前記回転軸より下方に設けられた継ぎ手により前記支持台に固定したことによって、当該回転軸の負荷側端部に下向きの荷重が加わった際の前記固定子の反負荷側における上向きの変形を抑制することを特徴とするものである。 In order to solve the above problems, the present invention is configured as follows.
The invention described in claim 1 is an electric motor used in an elevator hoisting machine, wherein a stator is configured by mounting a stator coil on a cylindrical stator core, and on the load side of the stator. A support base that is fixed and fixed from above with respect to a fixed base having a horizontal plane, an anti-load side bracket that is fixed to the anti-load side of the stator, and the support base and the anti-load that are horizontally oriented A rotating shaft that is rotatably supported by a side bracket via a bearing, and a rotor disposed opposite to the inner peripheral surface of the stator via a radial gap, the anti-load side By fixing the bracket to the support base with a joint provided below the rotary shaft, an upward deformation on the non-load side of the stator when a downward load is applied to the load side end of the rotary shaft which is characterized in that suppresses A.

本発明によれば、次のような効果がある。
(1) 請求項１に記載の発明によると、固定子の負荷側には支持台が、反負荷側には反負荷側ブラケットが固定され、さらに前記反負荷側ブラケットは前記回転軸より下方に設けられた継ぎ手により前記支持台に固定された構造とするものであり、部品及び装置を小型軽量化することができ、固定のための長さ、つまり支持台の軸方向の長さを短くして据付長さを短くすることができ、さらに組み立て時間を短くすることができる。さらに、前記反負荷側ブラケットを前記回転軸より下方に設けられた継ぎ手により前記支持台に固定したことによって、当該回転軸の負荷側端部に下向きの荷重が加わった際の前記固定子の反負荷側における上向きの変形を抑制することができる。
The present invention has the following effects.
(1) According to the invention described in claim 1, the support base is fixed to the load side of the stator, the anti-load side bracket is fixed to the anti-load side, and the anti-load side bracket is further below the rotary shaft. It is structured to be fixed to the support base by the provided joint, and the parts and device can be reduced in size and weight, and the length for fixing, that is, the length of the support base in the axial direction is shortened. Thus, the installation length can be shortened and the assembly time can be further shortened . Further, the anti-load side bracket is fixed to the support base by a joint provided below the rotary shaft, so that the stator is counteracted when a downward load is applied to the load side end of the rotary shaft. An upward deformation on the load side can be suppressed.

以下、本発明の実施の形態について図を参照して説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は本発明の第１の実施例における回転電機を示す斜視図、図２は本発明の第１の実施例における回転電機を示す図で、（ａ）は構成図、（ｂ）は組立図である。
図１，２において、２１は固定子、２６は回転軸、２７はボルト、２８は固定台、３１ａは反負荷側ブラケット、３２ａは支持台、３３は継ぎ手、３４は反負荷側軸受、３５は負荷側軸受、Ｌ３は前記支持台３２ａの軸方向の長さである。
前記固定子２１の負荷側には負荷側軸受３５及び支持台３２ａが、反負荷側には反負荷側軸受３４及び反負荷側ブラケット３１ａがボルト２７により固定され、さらに前記反負荷側ブラケット３１ａは継ぎ手３３により前記支持台３２ａに固定される。ここで、前記支持台３２ａは、軸方向の長さがＬ３で、負荷側ブラケットを兼ねたものである。
ここで、継ぎ手３３の効果について説明する。図３は本発明の第１の実施例における回転電機を示す図で、（ａ）は継ぎ手が無い場合の構成図、（ｂ）は（ａ）にて荷重が加わった時の変形図、（ｃ）は継ぎ手がある場合の構成で荷重が加わった時の変形図である。
図３において、２１は固定子、２６は回転軸、３１ａは反負荷側ブラケット、３２ａは支持台、３３は継ぎ手、Ｐは荷重である。まず、継ぎ手が無い構成において、回転軸２６に下向きの荷重Ｐが加わると、図３（ｂ）に示すように、支持台３２ａはモーメントを受け、固定子２１の負荷側は下向きに、反負荷側は上向きに変形する。これに対して、継ぎ手３３があると、反負荷側ブラケット３１ａは前記継ぎ手３３を介して前記支持台３２ａに固定された構造となるため、図３（ｃ）に示すように、回転軸２６に下向きの荷重Ｐが加わっても変形しない。
本発明が第１の従来技術と異なるところは、固定子の支持を両側ではなく片側とし、支持台の軸方向の長さを短くした点である。また、第２の従来技術と異なるところは、回転軸の支持に軸受台を設けていない点である。本発明により、部品及び装置を小型軽量化することができ、固定のための長さ、つまり支持台の軸方向の長さを短くして据付長さを短くすることができ、さらに組み立て時間を短くすることができる。 FIG. 1 is a perspective view showing a rotating electrical machine in the first embodiment of the present invention, FIG. 2 is a view showing the rotating electrical machine in the first embodiment of the present invention, (a) is a configuration diagram, and (b) is an assembly. FIG.
1 and 2, 21 is a stator, 26 is a rotating shaft, 27 is a bolt, 28 is a fixing base, 31a is an anti-load side bracket, 32a is a support base, 33 is a joint, 34 is an anti-load side bearing, and 35 is A load-side bearing, L3, is the axial length of the support base 32a.
A load-side bearing 35 and a support base 32a are fixed to the load side of the stator 21, an anti-load side bearing 34 and an anti-load side bracket 31a are fixed to the anti-load side by bolts 27, and the anti-load side bracket 31a is The joint 33 is fixed to the support base 32a. Here, the support base 32a has an axial length of L3 and also serves as a load side bracket.
Here, the effect of the joint 33 will be described. 3A and 3B are diagrams showing the rotating electric machine according to the first embodiment of the present invention, in which FIG. 3A is a configuration diagram when there is no joint, FIG. 3B is a modified view when a load is applied in FIG. c) is a modified view when a load is applied in the configuration in which there is a joint.
In FIG. 3, 21 is a stator, 26 is a rotating shaft, 31a is an anti-load side bracket, 32a is a support base, 33 is a joint, and P is a load. First, in a configuration without a joint, when a downward load P is applied to the rotary shaft 26, as shown in FIG. 3B, the support base 32a receives a moment, and the load side of the stator 21 is directed downward to be anti-loading. The side deforms upward. On the other hand, when the joint 33 is present, the anti-load side bracket 31a is fixed to the support base 32a via the joint 33. Therefore, as shown in FIG. Even if a downward load P is applied, it does not deform.
The present invention differs from the first prior art in that the stator is supported on one side instead of on both sides, and the length of the support base in the axial direction is shortened. Further, the difference from the second prior art is that no bearing stand is provided for supporting the rotating shaft. According to the present invention, parts and devices can be reduced in size and weight, the length for fixing, that is, the length in the axial direction of the support base can be shortened, and the installation length can be shortened. Can be shortened.

図４は本発明の第２の実施例における回転電機を示す図で、（ａ）は構成図、（ｂ）は組立図である。
図４において、固定子２１の負荷側には支持台３２ｂが、反負荷側には反負荷側ブラケット３１ａが固定される。ここで、前記支持台３２ｂは、実施例１における支持台３２ａと継ぎ手３３を一体化した形状で、前記反負荷側ブラケット３１ａが固定される部位に合わせ部４０を設けたもので、両者の溶接、ＮＣ工作機械等による切削、または鋳造により製作される。
これにより、さらに部品点数を少なくすることができ、組み立て時間を短くすることができる。 4A and 4B are diagrams showing a rotating electrical machine according to a second embodiment of the present invention, in which FIG. 4A is a configuration diagram and FIG. 4B is an assembly diagram.
In FIG. 4, a support base 32b is fixed to the load side of the stator 21, and an anti-load side bracket 31a is fixed to the anti-load side. Here, the support base 32b has a shape in which the support base 32a and the joint 33 in the first embodiment are integrated, and is provided with a matching portion 40 at a portion to which the anti-load side bracket 31a is fixed. It is manufactured by cutting with NC machine tools or casting.
Thereby, the number of parts can be further reduced, and the assembly time can be shortened.

図５は本発明の第３の実施例における回転電機を示す図で、（ａ）は構成図、（ｂ）は組立図である。
図５において、固定子２１の負荷側には支持台３２ａが、反負荷側には反負荷側ブラケット３１ｂが固定される。ここで、前記反負荷側ブラケット３１ｂは、実施例１における反負荷側ブラケット３１ａと継ぎ手３３を一体化した形状で、前記支持台３２ａに固定される部位に合わせ部４１を設けたもので、反負荷側ブラケット３１ａと継ぎ手３３の溶接、ＮＣ工作機械等による切削、または鋳造により製作される。
これにより、前記反負荷側ブラケット３１ｂを固定するボルト２７が一面に集中して、前記反負荷側ブラケット３１ｂの下部が固定台等と干渉して工具が入らない、または工具の回転動作角度が少ししかとれないという不具合はなくなる。つまり、組み立て時だけでなく、定期点検等における反負荷側ブラケットの取り外し及び取り付け作業を容易にすることができる。 5A and 5B are diagrams showing a rotating electrical machine according to a third embodiment of the present invention, in which FIG. 5A is a configuration diagram and FIG. 5B is an assembly diagram.
In FIG. 5, the support base 32a is fixed to the load side of the stator 21, and the anti-load side bracket 31b is fixed to the anti-load side. Here, the anti-load side bracket 31b has a shape in which the anti-load side bracket 31a and the joint 33 in the first embodiment are integrated, and is provided with a matching portion 41 at a portion fixed to the support base 32a. It is manufactured by welding the load side bracket 31a and the joint 33, cutting by an NC machine tool or the like, or casting.
As a result, the bolts 27 for fixing the anti-load side bracket 31b are concentrated on one surface, and the lower part of the anti-load side bracket 31b interferes with a fixing base or the like so that the tool does not enter, or the rotational operation angle of the tool is slightly increased. The problem that it can only be removed is eliminated. That is, it is possible to easily remove and attach the anti-load side bracket not only at the time of assembly but also at regular inspections.

図６は本発明の第４の実施例における回転電機を示す図で、（ａ）は構成図、（ｂ）は組立図である。
図６において、固定子２１の負荷側には支持台３２ｃが、反負荷側には反負荷側ブラケット３１ｃが固定される。ここで、前記支持台３２ｃは、実施例１における支持台３２ａと継ぎ手３３、さらに反負荷側ブラケット３１ａの一部を一体化した形状で、前記反負荷側ブラケット３１ｃが固定される部位に合わせ部４２を設けたもので、支持台３２ａと継ぎ手３３、さらに反負荷側ブラケット３１ａの一部との溶接、ＮＣ工作機械等による切削、または鋳造により製作される。また、前記反負荷側ブラケット３１ｃは、実施例１における反負荷側ブラケット３１ａにおいて、前記支持台３２ｃの合わせ部と相対する部位を切削して合わせ部４３を設けたものである。
これにより、前記反負荷側ブラケット３１ｃは軽くなり、組み立て時だけでなく、定期点検等における反負荷側ブラケットの取り外し、取り付け作業を容易にすることができる。 6A and 6B are diagrams showing a rotating electrical machine according to a fourth embodiment of the present invention, in which FIG. 6A is a configuration diagram and FIG. 6B is an assembly diagram.
In FIG. 6, a support base 32c is fixed to the load side of the stator 21, and an anti-load side bracket 31c is fixed to the anti-load side. Here, the support base 32c has a shape in which the support base 32a, the joint 33, and a part of the anti-load side bracket 31a according to the first embodiment are integrated, and is aligned with a portion to which the anti-load side bracket 31c is fixed. 42, and is manufactured by welding of the support base 32a and the joint 33, and a part of the anti-load side bracket 31a, cutting by an NC machine tool or the like, or casting. Further, the anti-load side bracket 31c is the anti-load side bracket 31a according to the first embodiment provided with an alignment portion 43 by cutting a portion facing the alignment portion of the support base 32c.
Thereby, the said anti-load side bracket 31c becomes light, and the removal and attachment operation | work of the anti-load side bracket not only at the time of an assembly but periodic inspection etc. can be made easy.

本発明の第１の実施例における回転電機を示す斜視図である。It is a perspective view which shows the rotary electric machine in the 1st Example of this invention. 本発明の第１の実施例における回転電機を示す図で、（ａ）は構成図、（ｂ）は組立図である。It is a figure which shows the rotary electric machine in 1st Example of this invention, (a) is a block diagram, (b) is an assembly drawing. 本発明の第１の実施例における回転電機を示す図で、（ａ）は継ぎ手が無い場合の構成図、（ｂ）は（ａ）にて荷重が加わった時の変形図、（ｃ）は継ぎ手がある場合の構成で荷重が加わった時の変形図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the rotary electric machine in 1st Example of this invention, (a) is a block diagram when there is no joint, (b) is a deformation | transformation figure when a load is added in (a), (c) is It is a deformation | transformation figure when a load is added by the structure in case there exists a joint. 本発明の第２の実施例における回転電機を示す図で、（ａ）は構成図、（ｂ）は組立図である。It is a figure which shows the rotary electric machine in the 2nd Example of this invention, (a) is a block diagram, (b) is an assembly drawing. 本発明の第３の実施例における回転電機を示す図で、（ａ）は構成図、（ｂ）は組立図である。It is a figure which shows the rotary electric machine in the 3rd Example of this invention, (a) is a block diagram, (b) is an assembly drawing. 本発明の第４の実施例における回転電機を示す図で、（ａ）は構成図、（ｂ）は組立図である。It is a figure which shows the rotary electric machine in the 4th Example of this invention, (a) is a block diagram, (b) is an assembly drawing. 第１の従来技術における回転電機を示す斜視図である。It is a perspective view which shows the rotary electric machine in 1st prior art. 第２の従来技術における回転電機を示す側断面図である。It is a sectional side view which shows the rotary electric machine in 2nd prior art.

符号の説明Explanation of symbols

１ 機台
２Ａ、２Ｂ 鉄心押え板
３、２１ 固定子
４ 鏡板
４ａ 排気穴
５ 外部カバー
５ａ 吸入口
６ 内部カバー
７Ａ、７Ｂ 軸受
７ａ、７ｂ ころがり軸受
８Ｂ 軸受台
９、２６ 回転軸
９ａ キー
１０ 網車
１０ａ ボス部
１１ 回転子鉄心
１１ａ 冷却穴
１２ 固定子巻線
１４ 通風口
１５ 排気管
１５a 排気ファン
１６、１６ａ、１７ ダクト
１９ 通風管
２２、３１ａ、３１ｂ、３１ｃ 反負荷側ブラケット
２３ 反負荷側支持台
２４ 負荷側支持台
２５ 全体支持台
２７ ボルト
２８ 固定台
３２ａ、３２ｂ、３２ｃ 支持台
３３ 継ぎ手
３４ 反負荷側軸受
３５ 負荷側軸受
４０、４１、４２、４３ 合わせ部
Ｂ１、Ｂ２、Ｂ２１、Ｂ３、Ｂ５、Ｂ６、Ｂ７ 冷却空気
Ｌ１ 全体支持台の軸方向の長さ
Ｌ２ 鉄心押え板から軸受台までの長さ
Ｌ３ 支持台の軸方向の長さ
Ｐ 荷重 DESCRIPTION OF SYMBOLS 1 Machine base 2A, 2B Iron core holding plate 3, 21 Stator 4 End plate 4a Exhaust hole 5 External cover 5a Suction port 6 Internal cover 7A, 7B Bearing 7a, 7b Rolling bearing 8B Bearing base 9, 26 Rotating shaft 9a Key 10 10a Boss portion 11 Rotor core 11a Cooling hole 12 Stator winding 14 Ventilation hole 15 Exhaust pipe 15a Exhaust fans 16, 16a, 17 Duct 19 Ventilation pipes 22, 31a, 31b, 31c Anti-load side bracket 23 Anti-load side support base 24 Load side support base 25 Overall support base 27 Bolt 28 Fixing bases 32a, 32b, 32c Support base 33 Joint 34 Anti-load side bearing 35 Load side bearings 40, 41, 42, 43 Matching portions B1, B2, B21, B3, B5 , B6, B7 Cooling air L1 Overall support stand length L2 Length from core presser plate to bearing stand L3 Support stand axial length P Load

Claims (1)

エレベータ用巻上機に用いられる電動機であって、
筒状の固定子鉄心に固定子コイルを装着して構成された固定子と、
前記固定子の負荷側に固定され、水平面を有する固定台に対して上方から固定される支持台と、
前記固定子の反負荷側に固定された反負荷側ブラケットと、
水平方向に向けられて前記支持台と前記反負荷側ブラケットとに軸受を介して回転自在に支持された回転軸を有し、前記固定子の内周面に、径方向の空隙を介して対向配置された回転子とを備え、
前記反負荷側ブラケットを前記回転軸より下方に設けられた継ぎ手により前記支持台に固定したことによって、当該回転軸の負荷側端部に下向きの荷重が加わった際の前記固定子の反負荷側における上向きの変形を抑制することを特徴とする電動機。 An electric motor used in an elevator hoisting machine,
A stator configured by mounting a stator coil on a cylindrical stator core; and
A support base fixed to the load side of the stator and fixed from above with respect to a fixed base having a horizontal plane;
An anti-load side bracket fixed to the anti-load side of the stator;
It has a rotating shaft that is directed horizontally and is rotatably supported by the support base and the anti-load side bracket via a bearing, and faces the inner peripheral surface of the stator via a radial gap. An arranged rotor,
The anti-load side of the stator when a downward load is applied to the load side end of the rotary shaft by fixing the anti-load side bracket to the support base by a joint provided below the rotary shaft An electric motor characterized by suppressing upward deformation in the motor.
JP2004241893A 2004-08-23 2004-08-23 Electric motor Expired - Fee Related JP4636362B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004241893A JP4636362B2 (en) 2004-08-23 2004-08-23 Electric motor
CNB2005100966357A CN100394674C (en) 2004-08-23 2005-08-23 Rotary motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004241893A JP4636362B2 (en) 2004-08-23 2004-08-23 Electric motor

Publications (2)

Publication Number Publication Date
JP2006060955A JP2006060955A (en) 2006-03-02
JP4636362B2 true JP4636362B2 (en) 2011-02-23

Family

ID=36093612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004241893A Expired - Fee Related JP4636362B2 (en) 2004-08-23 2004-08-23 Electric motor

Country Status (2)

Country Link
JP (1) JP4636362B2 (en)
CN (1) CN100394674C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6742269B2 (en) * 2017-04-07 2020-08-19 株式会社日立製作所 Hoisting machine and elevator
JP7324172B2 (en) * 2020-04-30 2023-08-09 東芝三菱電機産業システム株式会社 Rotating electric machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63137553U (en) * 1987-02-26 1988-09-09

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355785A (en) * 1981-02-23 1982-10-26 Westinghouse Electric Corp. Electrically driven sheave
US4679661A (en) * 1986-02-24 1987-07-14 Otis Elevator Company Modular gearless elevator drive
JP3719281B2 (en) * 1996-02-14 2005-11-24 株式会社安川電機 Frameless motor
JPH10114496A (en) * 1996-10-09 1998-05-06 Meidensha Corp Hoist
US6310416B1 (en) * 2000-02-11 2001-10-30 Huang-Tung Chang Resisting and pulling mechanism
CN2460504Y (en) * 2000-10-08 2001-11-21 新国扬机电股份有限公司 Counter-weight type special life hoister for well way without machine room

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63137553U (en) * 1987-02-26 1988-09-09

Also Published As

Publication number Publication date
CN1741350A (en) 2006-03-01
CN100394674C (en) 2008-06-11
JP2006060955A (en) 2006-03-02

Similar Documents

Publication Publication Date Title
JP5574743B2 (en) Electric motor
JP2006219274A (en) Hoisting machine for elevator and bearing replacing method of hoisting machine for elevator
JPWO2004108579A1 (en) Elevator hoist and motor
JP5551252B2 (en) End shield for electrical machines
US20100150748A1 (en) Method of Installing a Permanent Magnet Motor in a Cooling Tower and a Shroud Used in Connection Therewith
JP4549049B2 (en) Engine generator
JP4636362B2 (en) Electric motor
JP5468237B2 (en) Electric motor
WO2015132850A1 (en) Hoist for elevator
JP6995564B2 (en) Abduction type rotary electric machine and elevator hoisting machine
JP2010057260A (en) Stator fixing structure of rotating electrical machine
JP6552731B2 (en) Bearing device for elevator hoisting machine
JPH10271763A (en) Motor fitted with controller and permanent magnet motor
JP2013223390A (en) Method for replacing bearing part of rotary electric machine and replacement holder thereof
JP2010193607A (en) Rotary electric machine, manufacturing method thereof, and hoist
JP2016059083A (en) Abduction type induction motor and ceiling fan having the same
JP5358325B2 (en) Electric motor
JP2004115141A (en) Winding machine for elevator
JP6046466B2 (en) Motor waterproof structure
JP4455151B2 (en) Elevator hoisting machine
JP3449448B2 (en) Jig for assembling fan guide of rotating electric machine
JP7324172B2 (en) Rotating electric machine
JP5893457B2 (en) Vertical shaft type rotating electric machine
US11973397B2 (en) Dynamo-electric machine
WO2021234994A1 (en) Outer rotor-type rotating electric machine

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070710

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100205

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100210

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100311

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20100610

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100727

A911 Transfer of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20100922

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101029

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101111

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131203

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20141203

Year of fee payment: 4

LAPS Cancellation because of no payment of annual fees