JPH02246749A - Motor rotor - Google Patents
Motor rotorInfo
- Publication number
- JPH02246749A JPH02246749A JP6440989A JP6440989A JPH02246749A JP H02246749 A JPH02246749 A JP H02246749A JP 6440989 A JP6440989 A JP 6440989A JP 6440989 A JP6440989 A JP 6440989A JP H02246749 A JPH02246749 A JP H02246749A
- Authority
- JP
- Japan
- Prior art keywords
- core
- hole
- rotor
- rotating shaft
- insertion hole
- 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.)
- Pending
Links
- 238000003780 insertion Methods 0.000 claims abstract description 26
- 230000037431 insertion Effects 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000010030 laminating Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、冷媒用圧縮機等に搭載される庇箱機の回転子
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotor for an eaves box machine mounted on a refrigerant compressor or the like.
（ロ）従来の技術
一般に、この種の電動機の回転子は特願昭６２−１７９
３１２号□明細書に記載されているように、帯状鋼板を
順送プレス打抜き加工して内部に回転軸への挿入孔やス
ロットを有する円形の電磁鋼板を形成し、この電磁鋼板
を所定枚数積層して回転子鉄心を製作した後、この鉄心
に溶融アルミニウムで鋳込んで構成されている。(b) Conventional technology In general, the rotor of this type of electric motor is
No. 312 □ As described in the specification, a belt-shaped steel plate is progressively press punched to form a circular electromagnetic steel plate having an insertion hole and slot for a rotating shaft inside, and a predetermined number of these electromagnetic steel plates are laminated. After manufacturing the rotor core, molten aluminum is cast into the core.
そして、この回転子は挿入孔に回転軸を圧入したり該軸
に焼嵌めしたりすることにより回転軸に固着される。The rotor is fixed to the rotating shaft by press-fitting the rotating shaft into the insertion hole or shrink-fitting the rotating shaft to the shaft.
ここで、回転子は回転軸に圧入或いは焼嵌めする都合上
、挿入孔の内径は回転軸の外径より稍小さめに形成され
るが、その圧入作業性や中心位置合せ等を考慮して、回
転軸の端部にはテーパ部（面取り部）を、これに対する
回転子の挿入孔の端部には前記テーパ部と同程度のテー
パ部（面取り部）を各々形成している。Here, since the rotor is press-fitted or shrink-fitted onto the rotating shaft, the inner diameter of the insertion hole is formed to be slightly smaller than the outer diameter of the rotating shaft, but considering the press-fitting workability and center alignment, etc. A tapered part (chamfered part) is formed at the end of the rotating shaft, and a tapered part (chamfered part) to the same extent as the tapered part is formed at the end of the insertion hole of the rotor.
（ハ）発明が解決しようとする課題
しかしながら上記の構成によると、回転子の挿入孔端部
のテーパ部は、回転子鉄心を製作した後で挿入孔の端部
を切削加工することにより行なわれているため、回転子
の製造工程にテーパ部の切削加工という工程が加わり、
生産性が悪くコスト高になるという問題があった。(c) Problems to be Solved by the Invention However, according to the above configuration, the tapered portion at the end of the insertion hole of the rotor is created by cutting the end of the insertion hole after manufacturing the rotor core. Therefore, a process of cutting the taper part is added to the rotor manufacturing process.
There were problems with poor productivity and high costs.
本発明は斯る点に鑑みなされたもので、回転子を回転軸
へ圧入或いは焼嵌めする際に、回転子鉄心にカジリを生
じたりすることなく、圧λ等の作業性を向上し中心位置
合せを確実にするだけでなく、回転子の製造工程を削減
し生産性が良く低コストの電動機の回転子を提供するこ
とを目的とする。The present invention has been made in view of the above, and it is possible to improve workability such as pressure λ, etc. without causing galling in the rotor core when press-fitting or shrink-fitting the rotor to the rotating shaft, and to improve workability such as pressure λ, etc. The purpose of the present invention is to provide a low-cost electric motor rotor that not only ensures proper alignment but also reduces the manufacturing process of the rotor and has good productivity.
（ニ）課題を解決するための手段
本発明は、複数枚の電磁鋼板を積層して構成されると共
に内部に回転軸の挿入孔を有する回転子であって、前記
回転軸の端部に形成されたテーパ部を介して該軸に圧入
或いは焼嵌により装着きれるものにおいて、前記挿入孔
の端部に、回転軸の直径より稍大きい径の孔を有する第
２の電磁鋼板を積層し、この鋼板の最外端の孔縁と前記
挿入孔端部の孔縁とを結ぶ直線と、回転軸線との成す角
度が前記テーパ部の角度と同程度になるよう構成したも
のである。(d) Means for Solving the Problems The present invention provides a rotor constructed by laminating a plurality of electromagnetic steel sheets and having an insertion hole for a rotating shaft inside, the rotor having a hole formed at an end of the rotating shaft. A second electromagnetic steel plate having a hole slightly larger in diameter than the diameter of the rotating shaft is laminated at the end of the insertion hole, and this The angle formed by the rotational axis and a straight line connecting the hole edge at the outermost end of the steel plate and the hole edge at the end of the insertion hole is approximately the same as the angle of the tapered portion.
（ホ）作用
本発明の電動機の回転子は上記の構成により、回転子を
回転軸へ圧入或いは焼嵌めする際に、第２の電磁鋼板の
最外端の孔縁と挿入孔端部の孔縁とで該回転子を回転軸
のテーパ部に沿って案内することができ、回転子と回転
軸の中心軸線を一致させて位置合せを確実にすると共に
、圧λ等の作業性を向上できる。このため、回転子の挿
入孔端部に形成していたテーパ部は不要となり該テーパ
部の切削加工は廃止できる。この結果、回転子の製造工
程を削減し生産性を向上してコストを低減できる。尚、
第２の電磁鋼板はプレス打抜き加工によって主たる電磁
鋼板の形成と同時に製作できるため、生産性を損なうよ
うなことはない。(E) Function The rotor of the electric motor of the present invention has the above-described structure, so that when the rotor is press-fitted or shrink-fitted to the rotating shaft, the outermost hole edge of the second electromagnetic steel plate and the hole at the insertion hole end are The rotor can be guided along the tapered part of the rotating shaft by the edge, and the center axes of the rotor and the rotating shaft can be aligned to ensure alignment, and workability such as pressure λ can be improved. . Therefore, the taper portion formed at the end of the insertion hole of the rotor becomes unnecessary, and cutting of the taper portion can be eliminated. As a result, the manufacturing process of the rotor can be reduced, productivity can be improved, and costs can be reduced. still,
Since the second electromagnetic steel sheet can be manufactured simultaneously with the formation of the main electromagnetic steel sheet by press punching, productivity will not be compromised.
（へ）実施例 以下、・本発明の実施例を図面に基づいて説明する。(f) Example Hereinafter, embodiments of the present invention will be described based on the drawings.
１は回転子である。この回転子は、素材となる帯状鋼板
を順送プレス打抜き加工して３種類（後述する挿入孔の
大きさのみ違う）の電ａｉ鋼板Ａ。1 is a rotor. This rotor is made of three types of electric AI steel sheets A (the only difference being the size of the insertion hole described later), which is made by progressive press punching of a strip steel sheet.
Ｂ、Ｃを形成し、これを図に示すように各所定枚数積層
、クランプして回転子鉄心１ａ製作した後、この鉄心に
溶融アルミニウムを鋳込んで構成されている。B and C are formed, and a predetermined number of these are laminated and clamped as shown in the figure to produce a rotor core 1a, and then molten aluminum is poured into this core.
回転子鉄心１ａは電磁鋼板Ａを所定枚数積層し内部に回
転軸２の挿入孔３１を有するＡコアと、このＡコアの一
側に配置され電磁鋼板Ｃを所定枚数積層して内部にＡコ
アの挿入孔３１より稍大きい（１１程度）孔３２を有す
る第１のＢコアと、前記Ａコアの他側に配置され電磁鋼
板Ｂを所定枚数積層して内部に孔３３（孔３２と同径）
を有する第２のＢコアと、この第２のＢコアに隣接して
電磁鋼板Ｃを所定枚数積層し内部に孔３４を有するＣコ
アとから構成されている。ここで、前記Ａコアの挿入孔
３１は、回転軸２に圧入される都合上、該軸の直径より
稍小さく形成されている。また、第１のＢコアの孔３２
はアルミダイカスト時の金型の締付力による鎖孔の膨張
を考慮して、前記挿入孔３１より稍大きく（数十μ程度
）形成されている。更に、Ｃコアの孔３４は回転軸２の
軸受部（図示せず）の逃げであるため、挿入孔より相当
大きく形成されている。４、及び５は各々アルミニウム
からなるエンドリングである。一方、６は回転軸の端部
に形成されたテーパ部であり、テーパ面を通る直線ｎと
該軸の軸線！との成す角度αが約１５°になるよう形成
されている。The rotor core 1a includes an A core made by laminating a predetermined number of electromagnetic steel plates A and having an insertion hole 31 for the rotating shaft 2 therein, and an A core arranged on one side of the A core and made by laminating a predetermined number of electromagnetic steel plates C. A first B core having a hole 32 that is slightly larger (approximately 11) than the insertion hole 31 of the A core, and a predetermined number of electromagnetic steel sheets B arranged on the other side of the A core are laminated to form a hole 33 (same diameter as the hole 32) inside. )
The second B core has a second B core, and the second B core has a predetermined number of electromagnetic steel sheets C laminated adjacent to the second B core, and a C core having a hole 34 inside. Here, the insertion hole 31 of the A core is formed slightly smaller than the diameter of the rotating shaft 2 in order to be press-fitted into the rotating shaft 2. In addition, the hole 32 of the first B core
is formed slightly larger (approximately several tens of microns) than the insertion hole 31 in consideration of the expansion of the chain hole due to the clamping force of the mold during aluminum die casting. Furthermore, since the hole 34 of the C core is a relief for the bearing portion (not shown) of the rotating shaft 2, it is formed considerably larger than the insertion hole. 4 and 5 are end rings each made of aluminum. On the other hand, 6 is a tapered part formed at the end of the rotating shaft, and the straight line n passing through the tapered surface and the axis of the shaft! The angle .alpha.
しかして、第２のＢコアはその最外端の孔縁ＸとＡコア
の端部の孔縁Ｙとを結ぶ直線ｍと、軸線！との成す角度
βが前記回転軸２のテーパ部６の角度αと同じになるよ
うに、すなわち、約１５゛になるように、電磁鋼板Ｂの
積層厚が決定されている。Therefore, the second B core has a straight line m connecting the outermost hole edge X and the hole edge Y at the end of the A core, and the axis ! The laminated thickness of the electromagnetic steel sheets B is determined so that the angle β between the two is the same as the angle α of the tapered portion 6 of the rotating shaft 2, that is, approximately 15°.
このように構成された電動機の回転子は、第２のＢコア
の最外端の孔縁ＸとＡコアの端部の孔縁Ｙとを結ぶ直線
ｍと、軸線Ｐとの成す角度βが、回転軸２のテーパ部６
の角度αと同じであるため、回転子１を回転軸２へ圧入
する際に、前記孔縁Ｘと孔縁Ｙとで該回転子を回転軸２
のテーパ部６に沿って案内することができ、回転子１と
回転軸２の中心軸線を一致させて位置合せを確実にする
と共に、圧入等の作業性を向上できる。このため、従来
のように回転子の挿入孔端部に形成していたテーパ部（
面取り部）は不要となり、該テーパ部の切削工程を省略
できる。この結果、回転子の製造工程を削減し生産性を
向上してコストを低減できる。尚、回転子鉄心１ａを構
成する電磁鋼板Ａ、Ｂ、Ｃ及びＡコア、第１のＢコア、
第２のＢコア、Ｃコアの形成は、自動加締機の孔径や積
層枚数を適宜設定することにより簡単に行なえるため、
生産性を損うようなことはない。The rotor of the electric motor configured in this manner has an angle β between the axis P and the straight line m connecting the hole edge X at the outermost end of the second B core and the hole edge Y at the end of the A core. , the tapered portion 6 of the rotating shaft 2
is the same as the angle α of
The rotor 1 and the rotary shaft 2 can be guided along the tapered portion 6, and the central axes of the rotor 1 and the rotating shaft 2 can be aligned to ensure alignment, and workability such as press-fitting can be improved. For this reason, the taper part (which was previously formed at the end of the rotor insertion hole)
The chamfered portion) becomes unnecessary, and the process of cutting the tapered portion can be omitted. As a result, the manufacturing process of the rotor can be reduced, productivity can be improved, and costs can be reduced. In addition, the electromagnetic steel plates A, B, C and the A core, the first B core, which constitute the rotor core 1a,
The formation of the second B core and C core can be easily performed by appropriately setting the hole diameter of the automatic caulking machine and the number of laminated sheets.
There is no loss of productivity.
（ト）発明の効果
以上のように本発明によれば、回転子を回転軸へ圧入或
いは焼嵌めする際に、回転子の挿入孔端部に切削加工を
施したすせずに中心位置合せを確実に行うことができ、
回転子の生産性を向上しつつ鉄心のカジリを随ぎ、圧入
作業性を向上することができる。(G) Effects of the Invention As described above, according to the present invention, when the rotor is press-fitted or shrink-fitted to the rotating shaft, the end of the insertion hole of the rotor is machined so that the center alignment can be carried out without cutting. can be done reliably,
It is possible to improve the productivity of the rotor, prevent galling of the iron core, and improve press-fitting workability.
図は本発明の実施例を示す回転子の断面図である。
１・・・回転子、 １ａ・・・回転子鉄心、 ２・・
・回転軸、 ３１・・・挿入孔、 ３２，３３．３４
・・・孔。The figure is a sectional view of a rotor showing an embodiment of the present invention. 1... Rotor, 1a... Rotor core, 2...
・Rotating shaft, 31...insertion hole, 32, 33.34
...hole.
Claims (1)
部に回転軸の挿入孔を有する回転子であって、前記回転
軸の端部に形成されたテーパ部を介して該軸に圧入或い
は焼嵌により装着されるものにおいて、前記挿入孔の端
部に、回転軸の直径より稍大きい径の孔を有する第２の
電磁鋼板を積層し、この鋼板の最外端の孔縁と前記挿入
孔端部の孔縁とを結ぶ直線と、回転軸線との成す角度が
前記テーパ部の角度と同程度になるよう構成したことを
特徴とする電動機の回転子。(1) A rotor constructed by laminating a plurality of electromagnetic steel plates and having an insertion hole for a rotating shaft inside, the rotor being press-fitted into the rotating shaft through a tapered portion formed at the end of the rotating shaft. Alternatively, in a device that is installed by shrink fitting, a second electromagnetic steel plate having a hole with a diameter slightly larger than the diameter of the rotating shaft is laminated at the end of the insertion hole, and the hole edge at the outermost end of this steel plate and the A rotor for an electric motor, characterized in that the angle formed between a straight line connecting a hole edge at an end of an insertion hole and a rotation axis is approximately the same as the angle of the tapered portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6440989A JPH02246749A (en) | 1989-03-15 | 1989-03-15 | Motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6440989A JPH02246749A (en) | 1989-03-15 | 1989-03-15 | Motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02246749A true JPH02246749A (en) | 1990-10-02 |
Family
ID=13257477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6440989A Pending JPH02246749A (en) | 1989-03-15 | 1989-03-15 | Motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02246749A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0497446U (en) * | 1991-01-11 | 1992-08-24 | ||
| JP2012257351A (en) * | 2011-06-07 | 2012-12-27 | Mitsubishi Electric Corp | Rotor of motor, manufacturing method of the same, and permanent magnet type motor |
| WO2013129022A1 (en) * | 2012-02-29 | 2013-09-06 | アイシン・エィ・ダブリュ株式会社 | Hybrid excitation-type rotating electric machine |
-
1989
- 1989-03-15 JP JP6440989A patent/JPH02246749A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0497446U (en) * | 1991-01-11 | 1992-08-24 | ||
| JP2012257351A (en) * | 2011-06-07 | 2012-12-27 | Mitsubishi Electric Corp | Rotor of motor, manufacturing method of the same, and permanent magnet type motor |
| WO2013129022A1 (en) * | 2012-02-29 | 2013-09-06 | アイシン・エィ・ダブリュ株式会社 | Hybrid excitation-type rotating electric machine |
| CN104094501A (en) * | 2012-02-29 | 2014-10-08 | 爱信艾达株式会社 | Hybrid excitation-type rotating electric machine |
| JPWO2013129022A1 (en) * | 2012-02-29 | 2015-07-30 | アイシン・エィ・ダブリュ株式会社 | Hybrid excitation type rotating electric machine |
| CN104094501B (en) * | 2012-02-29 | 2016-08-24 | 爱信艾达株式会社 | Composite excitation formula electric rotating machine |
| US9806569B2 (en) | 2012-02-29 | 2017-10-31 | Aisin Aw Co., Ltd. | Hybrid excitation rotating electrical machine |
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