JPS6241551Y2 - - Google Patents
Info
- Publication number
- JPS6241551Y2 JPS6241551Y2 JP8717982U JP8717982U JPS6241551Y2 JP S6241551 Y2 JPS6241551 Y2 JP S6241551Y2 JP 8717982 U JP8717982 U JP 8717982U JP 8717982 U JP8717982 U JP 8717982U JP S6241551 Y2 JPS6241551 Y2 JP S6241551Y2
- Authority
- JP
- Japan
- Prior art keywords
- stator core
- frame
- support ring
- welding
- core
- 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
Links
- 238000003466 welding Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Frames (AREA)
Description
【考案の詳細な説明】
この考案は、回転電機の固定子コアとフレーム
間の固定装置に関するものである。[Detailed Description of the Invention] This invention relates to a fixing device between a stator core and a frame of a rotating electric machine.
従来この種の装置には第１図、第２図に示すも
のがあつた。第１図は全閉外扇形（フイン冷却方
式）誘導電動機を示すもので、第１図において、
１は固定子コイル、２は固定子コアで、この固定
子コアはフレーム４に装着されている。３，５は
ブラケツトで、軸受６，７を支持している。８は
軸９に嵌着されている回転子コア、１０は外部フ
アンである。 Conventionally, there have been devices of this type as shown in FIGS. 1 and 2. Figure 1 shows a fully enclosed external fan type (fin cooling type) induction motor.
1 is a stator coil, 2 is a stator core, and this stator core is attached to a frame 4. Brackets 3 and 5 support bearings 6 and 7. 8 is a rotor core fitted onto the shaft 9, and 10 is an external fan.
第２図は第１図の−線断面の一部を示した
ものであり、１１は固定子コア２に設けられたキ
ーで、フレーム４にあるキー溝１２に嵌合されて
いる。又、フレーム４に設けられたネジ穴１３に
セツトネジ１４が螺合されていて、このセツトネ
ジ１４は固定子コアまでネジ込まれている。 FIG. 2 shows a part of the cross section taken along the line 1 in FIG. Further, a set screw 14 is screwed into a screw hole 13 provided in the frame 4, and this set screw 14 is screwed into the stator core.
次に従来装置の作用について説明する。固定子
コア２にはフレーム４の内面を円周方向に回転し
ようとする回転力が常に運転時に作用するが、そ
の力を支持するため、固定子コア２の外周部にキ
ー１１を設け、更にフレーム４にキー溝１２を加
工し、両者を嵌合させている。又、輸送時の衝撃
や運転時の振動で固定子コア２がフレーム４内を
軸方向に移動しない様に、セツトネジ１４を固定
子コア２に食い込ませている。なおこの際フレー
ムが鋼板製であれば、フレームと固定子コアを直
接溶接する方法もあるが、鋳鉄製であれば溶接時
フレームが割れるなど鋳物特有の不具合があるの
で溶接は困難であつた。 Next, the operation of the conventional device will be explained. A rotational force that tries to rotate the inner surface of the frame 4 in the circumferential direction always acts on the stator core 2 during operation, but in order to support this force, a key 11 is provided on the outer periphery of the stator core 2. A keyway 12 is machined in the frame 4, and the two are fitted together. Further, the set screw 14 is inserted into the stator core 2 so that the stator core 2 does not move in the axial direction within the frame 4 due to shock during transportation or vibration during operation. If the frame is made of steel, there is a method of directly welding the frame and stator core, but if the frame is made of cast iron, welding is difficult because of the problems inherent to casting, such as the frame cracking during welding.
従来の固定子コアとフレームの固定装置は以上
の様に構成されており、固定子コアの円周方向回
転力に対しフレーム４に固定子コア２のキー１１
を嵌合させるためのキー溝１２を加工する必要が
あつた。さらに又、固定子コア２の軸方向移動を
防ぐため、セツトネジ１４を設ける必要があり、
フレームにネジを単体加工し、固定子コアをフレ
ームに挿入後更に固定子コア部にネジ加工が必で
あつた。また、固定子コアのキーはプレスでコア
を打抜く時、同時成形されるが、完全な円形のコ
アでないため、金型が複雑で高価となるほか、キ
ー部の鋭角のため金型寿命が短い欠点もあつた。 The conventional stator core and frame fixing device is constructed as described above.
It was necessary to process the keyway 12 for fitting the two. Furthermore, in order to prevent the stator core 2 from moving in the axial direction, it is necessary to provide a set screw 14.
It was necessary to machine the screws individually on the frame, and then machine the screws on the stator core after inserting the stator core into the frame. In addition, the key of the stator core is molded at the same time when the core is punched out using a press, but since the core is not a perfect circle, the mold is complicated and expensive, and the sharp angle of the key part shortens the life of the mold. There were also some shortcomings.
この考案は上記の様な従来のものの欠点を除去
するためになされたもので、固定子コアとフレー
ム間に介助リングを用い溶接により固着しようと
するものである。 This idea was made in order to eliminate the above-mentioned drawbacks of the conventional one, and uses a support ring between the stator core and the frame to secure them together by welding.
以下この考案の一実施例を第３図、第４図に基
いて説明する。第３図、第４図において、１３は
フレーム４に加工されたネジ穴、１５は介助リン
グで、溶接可能な材料（例えば鋼管等）で作ら
れ、外周にネジを有し、フレームのネジ穴１３に
螺合される（第３図）。そしてこの状態で溶接１
６にて介助リング１５と固定子コア２が一体化さ
れ（第４図）、円周方向の回転力及び軸方向の移
動力に耐える装置となる訳である。このように介
助リング１５を用いたため、従来困難であつた鋳
物フレームにも溶接作業が適用可能となつた。 An embodiment of this invention will be described below with reference to FIGS. 3 and 4. In FIGS. 3 and 4, 13 is a screw hole machined in the frame 4, and 15 is a support ring, which is made of a weldable material (such as steel pipe), has a thread on the outer periphery, and has a screw hole in the frame. 13 (Fig. 3). And in this state welding 1
At step 6, the assistance ring 15 and the stator core 2 are integrated (FIG. 4), resulting in a device that can withstand rotational force in the circumferential direction and moving force in the axial direction. By using the support ring 15 in this way, welding work can now be applied to cast frames, which has been difficult in the past.
なお上記実施例では、介助リングとフレーム間
をネジ嵌合の例で示したが、これは第５図に示す
ように、フレームはキリ穴とし、介助リング外周
はネジなしのものを用いても同じ効果が期待出来
る。 In the above embodiment, the assistance ring and the frame are fitted with screws, but as shown in Fig. 5, it is also possible to use a frame with a drilled hole and the outside circumference of the assistance ring without screws. You can expect the same effect.
以上のようにこの考案によれば、固定子コア側
のキーが不要となり、このためコア抜きのための
プレス金型寿命が延び、金型製作費も安価となる
とともに、フレームにキー溝を加工する手間が省
略出来るなどの実用上すぐれた効果を奏する。
尚、キー溝加工に対し、溶接作業の方が時間的及
びコスト的に遥かに有利であることを勘案すれば
尚更である。 As described above, this invention eliminates the need for a key on the stator core side, which extends the life of the press mold for core extraction, reduces mold manufacturing costs, and creates a keyway in the frame. This has excellent practical effects, such as eliminating the need for additional work.
This is especially true when considering that welding is far more advantageous in terms of time and cost than keyway machining.
第１図は従来の全閉外扇形誘導電動機の例を示
す部分断面側面図、第２図は第１図の−線に
おける部分拡大図、第３図、第４図は本考案の一
実施例を示す部分拡大図、第５図は本考案の他の
実施例を示す部分拡大図である。
図中、２は固定子コア、４はフレーム、１３は
ネジ穴、１５は介助リング、１６は溶接部であ
る。尚図中、同一符号は同一または相当部分を示
す。
Fig. 1 is a partially sectional side view showing an example of a conventional totally enclosed external sector induction motor, Fig. 2 is a partially enlarged view taken along the - line in Fig. 1, and Figs. 3 and 4 show an example of the present invention. FIG. 5 is a partially enlarged view showing another embodiment of the present invention. In the figure, 2 is a stator core, 4 is a frame, 13 is a screw hole, 15 is a support ring, and 16 is a welded portion. In the drawings, the same reference numerals indicate the same or corresponding parts.
Claims (1)
において、上記フレームに設けられた穴に介助
リングを固着し、この介助リングと上記固定子
コアとを溶接により固着したことを特徴とする
回転電機の固定子コアの固定装置。 (2) 介助リングはフレームのネジ穴に螺合されて
いる実用新案登録請求の範囲第１項記載の回転
電機の固定子コアの固定装置。[Claims for Utility Model Registration] (1) In a device in which a stator core is attached to the inner periphery of a frame, a support ring is fixed to a hole provided in the frame, and the support ring and the stator core are welded. A fixing device for a stator core of a rotating electric machine, characterized in that the stator core is fixed by (2) The fixing device for a stator core of a rotating electric machine according to claim 1, wherein the assistance ring is screwed into a screw hole of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8717982U JPS58193741U (en) | 1982-06-09 | 1982-06-09 | Fixing device for stator core of rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8717982U JPS58193741U (en) | 1982-06-09 | 1982-06-09 | Fixing device for stator core of rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58193741U JPS58193741U (en) | 1983-12-23 |
| JPS6241551Y2 true JPS6241551Y2 (en) | 1987-10-24 |
Family
ID=30095907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8717982U Granted JPS58193741U (en) | 1982-06-09 | 1982-06-09 | Fixing device for stator core of rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58193741U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005184874A (en) * | 2003-12-16 | 2005-07-07 | Hitachi Industrial Equipment Systems Co Ltd | Motor compressor |
| JP2010074979A (en) * | 2008-09-19 | 2010-04-02 | Yaskawa Electric Corp | Rotary motor |
-
1982
- 1982-06-09 JP JP8717982U patent/JPS58193741U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58193741U (en) | 1983-12-23 |
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