JPH03261354A - Manufacture of solid rotor for induction motor - Google Patents
Manufacture of solid rotor for induction motorInfo
- Publication number
- JPH03261354A JPH03261354A JP5740690A JP5740690A JPH03261354A JP H03261354 A JPH03261354 A JP H03261354A JP 5740690 A JP5740690 A JP 5740690A JP 5740690 A JP5740690 A JP 5740690A JP H03261354 A JPH03261354 A JP H03261354A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- end ring
- conductor bar
- solid rotor
- solid
- 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
- 239000007787 solid Substances 0.000 title claims abstract description 17
- 230000006698 induction Effects 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000004020 conductor Substances 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 2
- 241000555745 Sciuridae Species 0.000 claims 2
- 238000003754 machining Methods 0.000 abstract 1
- 239000000696 magnetic material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000009694 cold isostatic pressing Methods 0.000 description 3
- 238000004512 die casting Methods 0.000 description 3
- 238000001513 hot isostatic pressing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Manufacture Of Motors, Generators (AREA)
- Induction Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は誘導電動機のソリッドロータの製造方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a solid rotor for an induction motor.
［従来の技術〕
高速誘導電動機のかご形ソリッドロータは、軸強度、軸
剛性の向上のために採用されるが、従来の製作法におい
ては、丸鋼から一体に削り出したロータの鉄心部の開方
向に多数設けられたスロット穴へアルミをダイカストし
たり、第６［ｆｆ１４二示すように、回転軸体（ロータ
）ｌのスロット穴２へ導体バー３を挿入した後、上記導
体バーの両端にエンドリング４をロー付は部８でロー付
けしたり、また、例えば実開昭６２−１２５３６５に示
すよっに、両側エンドリングと多数の導体バーから成る
かごを形成した後、空間部に磁性粉末を充填し、熱間等
方圧縮（旧Ｐｉｌｏｔ ｌ５ｏｓｔａｔｉｃ Ｐｒｅｓ
ｓｉｎｇ）または冷間等方圧縮（Ｃ［Ｐ：Ｃｏ１ｄ ｌ
５ｏｓｔａｔｉｃ Ｐｒｅｓｓｉｎｇ） Ｌこより一体
に固形成形していた。[Conventional technology] A squirrel-cage solid rotor for high-speed induction motors is used to improve shaft strength and shaft rigidity. After die-casting aluminum into the slot holes provided in a large number in the opening direction, or inserting the conductor bar 3 into the slot hole 2 of the rotating shaft body (rotor) l as shown in the sixth [ff142], both ends of the conductor bar are Alternatively, as shown in Utility Model Application No. 62-125365, after forming a cage consisting of end rings on both sides and a large number of conductor bars, magnetic Filled with powder and hot isostatically pressed (formerly Pilot l5ostatic press)
sing) or cold isostatic compression (C[P:Co1d l
5ostatic Pressing) L was integrally solid-molded.
〔発明が解決しようとする問題点］
ところが、ロータのスロット穴へアルミをダイカストす
る方法では、ダイカストによる鋳物内部の欠陥あるいは
アルミそのものの強度不足により、高速回転になると開
放スロットまたは半開放スロットのスリット部分よりア
ルミが遠心力によりはみ出すという問題点があった。ま
た、ロータのスロット穴へ挿入した導体バーの両端にエ
ンドリングを溶接する方法では確実な溶接をするために
作業に手間取り、且つ接合面の溶着強度が小さく、さら
に溶接のばらつきによる不つり合い量が生じやすく、高
速回転には不向きであった。また、磁性粉末を両側エン
ドリングおよび多数の導体バーから成るかごと一体に熱
間等方圧ｍ（ＨＩＰ）または冷間等方圧縮（ＣＩＰ）に
より固形成形する方法では、鉄心部に相当する磁性粉末
の材質の選択の自由度が少ないうえ、粉末から固形成形
するために軸強度および靭性が十分に得られず、やはり
高速回転には不利だという問題点があった。[Problems to be Solved by the Invention] However, in the method of die-casting aluminum into the slot holes of the rotor, the slits in the open slots or semi-open slots may break when rotating at high speed due to defects inside the die casting or lack of strength of the aluminum itself. There was a problem with the aluminum sticking out from the parts due to centrifugal force. In addition, the method of welding end rings to both ends of a conductor bar inserted into the rotor slot hole takes time to ensure reliable welding, the welding strength of the joint surface is low, and there is a large amount of unbalance due to welding variations. This easily occurs, making it unsuitable for high-speed rotation. In addition, in a method in which magnetic powder is solidified by hot isostatic pressing (HIP) or cold isostatic pressing (CIP) into a cage consisting of end rings on both sides and a large number of conductor bars, the magnetic powder corresponding to the iron core is There was a problem in that there was little freedom in selecting the material of the powder, and since the powder was solid-formed, sufficient axial strength and toughness could not be obtained, which was disadvantageous for high-speed rotation.
そこで本発明は、安定した品質を保ち、超高速回転に十
分耐える軸剛性、軸強度を有するソリ、ットロータの製
作法を提供することを目的とする。Therefore, an object of the present invention is to provide a method for manufacturing a sled rotor that maintains stable quality and has axial rigidity and axial strength sufficient to withstand ultra-high speed rotation.
（問題点を解決するための手段）
上記目的を達成するため、丸鋼から削り出したロータの
鉄心部に設けた導体バーの断面と同等の形状をした多数
のスロット穴へ、鉄心部長さと同じ長さの導体バーを挿
入し、鉄心部の両側に密着して嵌合されたエンドリング
を、熱間等方圧縮または冷間等方圧縮により、拡散接合
させて一体化し、ソリッドロータを形成する。(Means for solving the problem) In order to achieve the above purpose, a large number of slotted holes with a shape equivalent to the cross section of the conductor bar provided in the core part of the rotor machined from round steel are inserted into the slot hole, which has the same length as the core length. A long conductor bar is inserted, and the end rings, which are tightly fitted on both sides of the iron core, are diffusion bonded and integrated by hot isostatic compression or cold isostatic compression to form a solid rotor. .
（作用］
上記手段により、ロータと導体バーとエンドリングが精
度よく、強固に一体結合されるので、軸強度、軸剛性、
つり合い良さが向上される。(Function) By the above means, the rotor, conductor bar, and end ring are precisely and firmly joined together, so that the shaft strength, shaft rigidity,
Balance is improved.
以下、本発明の具体的実施例を第１図および第２図より
説明する。Hereinafter, specific embodiments of the present invention will be described with reference to FIGS. 1 and 2.
図において、■は磁性体の丸鋼から一体に削り出したロ
ータ、２はロータ１の鉄心部７に設けられた多数のクロ
ーズまたはオーブンのスロット穴、３はスロット穴２へ
挿入される導体バー、４は鉄心部７の両側に密着して嵌
合される、あらかしめ機械加工したエンドリングである
。In the figure, ■ is a rotor machined integrally from magnetic round steel, 2 is a large number of closed or oven slot holes provided in the iron core 7 of rotor 1, and 3 is a conductor bar inserted into slot hole 2. , 4 are rough-machined end rings that are tightly fitted on both sides of the iron core portion 7.
なお、導体バー３およびエンドリング４は銅や銅合金等
の導電性の良い材料で製作されている。Note that the conductor bar 3 and the end ring 4 are made of a highly conductive material such as copper or copper alloy.
ロータ１のスロット穴２に導体バー３を挿入し、エンド
リング４を鉄心部７の両側に密着させ位置決め配置した
のち、耐圧容器内で熱間等方圧縮（１（ＩＰ）または冷
間等方圧縮（ＣＩＰ）により、拡散接合することによっ
て、ロータｌと導体バー３とエンドリング４を一体化し
ソリッドロータを形成する。After inserting the conductor bar 3 into the slot hole 2 of the rotor 1 and positioning the end ring 4 in close contact with both sides of the iron core 7, hot isostatic compression (1 (IP) or cold isostatic compression in a pressure vessel) is performed. By compression (CIP) and diffusion bonding, the rotor 1, the conductor bar 3, and the end ring 4 are integrated to form a solid rotor.
その後、ソリッドロータの外径を精密に機械仕上する。After that, the outer diameter of the solid rotor is precisely machined.
第３図は他の実施例を示し、エンドリング４の軸方向両
外側に、補強として高強度材料で製作されたエンドリン
グ押え５を嵌合し、熱間等方圧縮（ｌ（ＩＰ）または冷
間等方圧縮（ＣＩＰ）によりエンドリング４とエンドリ
ング押え５を拡散接合する。FIG. 3 shows another embodiment, in which end ring holders 5 made of high-strength material are fitted on both axially outer sides of the end ring 4 as reinforcement, and hot isostatic compression (l (IP) or The end ring 4 and the end ring presser 5 are diffusion bonded by cold isostatic pressing (CIP).
第４図はその他の実施例を示し、導体バー３がロータ１
の鉄心部長さよりも長く製作し、導体バーの同形状、同
数の六６ををするエンドリング４に嵌合したものである
。FIG. 4 shows another embodiment in which the conductor bar 3 is connected to the rotor 1.
The end ring 4 is manufactured to be longer than the length of the core of the conductor bar, and is fitted with an end ring 4 having the same shape and number of six-six conductor bars.
第５図は、第４図に示すその他の実施例のエンドリング
４の軸方向両外側にエンＩ・リング押え５をさらに付加
したものである。FIG. 5 shows another embodiment of the end ring 4 shown in FIG. 4 in which end ring pressers 5 are further added to both axially outer sides of the end ring 4.
［発明の効果］
本発明によるソリッドロータは、上述のように製作され
ているので、次のような効果がある。[Effects of the Invention] Since the solid rotor according to the present invention is manufactured as described above, it has the following effects.
（１）熱間等方圧縮（ＨＩＰ）または冷間等方圧縮（Ｃ
ＩＰ）によって各材料間で拡散接合され、１００：の金
属間結合が可能なため、ソリッドロータの高強度化、高
剛性化につながり、ロータ回転速度の限界を高めること
ができる。(1) Hot isostatic compression (HIP) or cold isostatic compression (C
Since each material is diffusion bonded by IP) and a metal-to-metal bond of 100: is possible, it leads to higher strength and higher rigidity of the solid rotor, and it is possible to increase the limit of rotor rotation speed.
（２）熱間等方圧縮（ＨＩＰ）または冷間等方圧縮（Ｃ
ＩＰ）により、各材料の母材の欠陥をも除去できるため
、安定した品質が保たれる。(2) Hot isostatic compression (HIP) or cold isostatic compression (C
IP) can also remove defects in the base material of each material, thereby maintaining stable quality.
（３）ロータ、導体バー、エンドリング、エンドリング
押えに、それぞれの適した材料が選択できるため、設計
の自由度が大きくなる。(3) Since suitable materials can be selected for the rotor, conductor bar, end ring, and end ring holder, the degree of freedom in design is increased.
（４）精度よく加工した均質な部材同士を直接拡散接合
するので、ロー付は等の補助材料のばらつき乙こよる不
つり合い量がなくなる。(4) Homogeneous members processed with high precision are directly diffusion bonded to each other, eliminating the unbalance caused by variations in auxiliary materials such as brazing.
第１図は、本発明の実施例に適用するロータの断面図、
第２図は、本発明の実施例における等方圧縮寸前のソリ
ッドロータ断面図、第３図、第４図、第５図は、本発明
の他の実施例における等方圧縮寸前のソリッドロータ断
面図である。
第６図は、従来例を示すソリッドロータの断面図である
。
なお、同一構成要素には同一符号を付しである。
１− ロータ、 ２−・−ス０．２ト穴３ −一−
−導体ハー、４ ・・−エンドリング５−−一 エンド
リング押え、６−一一一 穴７−−−−−鉄心部FIG. 1 is a sectional view of a rotor applied to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a solid rotor on the verge of isotropic compression in an embodiment of the present invention, and FIGS. 3, 4, and 5 are cross-sectional views of a solid rotor on the verge of isotropic compression in other embodiments of the present invention. It is a diagram. FIG. 6 is a sectional view of a conventional solid rotor. Note that the same components are given the same reference numerals. 1- Rotor, 2-・-S0.2 hole 3-1-
-Conductor bar, 4...-End ring 5--1 End ring holder, 6-111 Hole 7--Iron core part
Claims (1)
面と同等の形状をした多数のスロット穴へ鉄心部長さと
同じ長さの導体バーを挿入し、鉄心部の両側に密着して
嵌合されたエンドリングを熱間等方圧縮または冷間等方
圧縮により、拡散接合させて一体化することを特徴とす
るかご形誘導電動機のソリッドロータの製造方法。 ２、前記エンドリングの軸方向両外側に、補強としてエ
ンドリング押えを密着して嵌合した特許請求の範囲第１
項記載のかご形誘導電動機のソリッドロータの製造方法
。 ３、前記導体バーを前記ロータの鉄心部長さよりも長く
し、前記ロータのスロット穴と同形状、同数の穴を有す
るエンドリングに嵌合される特許請求の範囲第１項また
は第２項記載のかご形誘導電動機のソリッドロータの製
造方法。[Claims] 1. Conductor bars having the same length as the core length are inserted into a number of slot holes having the same shape as the cross section of the conductor bar in the core part of the rotor machined from round steel. A method for manufacturing a solid rotor for a squirrel-cage induction motor, characterized in that end rings closely fitted on both sides are diffusion-bonded and integrated by hot isostatic compression or cold isostatic compression. 2. Claim 1, in which end ring holders are tightly fitted to both axially outer sides of the end ring as reinforcement.
A method for manufacturing a solid rotor for a squirrel cage induction motor as described in . 3. The conductor bar is made longer than the iron core length of the rotor, and is fitted into an end ring having the same shape and the same number of holes as the slot holes of the rotor. A method for manufacturing a solid rotor for a squirrel cage induction motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5740690A JPH03261354A (en) | 1990-03-07 | 1990-03-07 | Manufacture of solid rotor for induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5740690A JPH03261354A (en) | 1990-03-07 | 1990-03-07 | Manufacture of solid rotor for induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03261354A true JPH03261354A (en) | 1991-11-21 |
Family
ID=13054762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5740690A Pending JPH03261354A (en) | 1990-03-07 | 1990-03-07 | Manufacture of solid rotor for induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03261354A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1026424C2 (en) * | 2004-06-15 | 2005-12-19 | Siemens Ind Turbomachinery B V | Rotor for electric motor, compressor unit provided with rotor, method for manufacturing a rotor for an electric motor. |
| CN102598489A (en) * | 2009-09-15 | 2012-07-18 | 曼柴油机和涡轮机欧洲股份公司 | Squirrel-cage Rotor And Method For Producing Such A Squirrel-cage Rotor |
| DE102012003195A1 (en) | 2011-02-24 | 2012-08-30 | Fanuc Corporation | Squirrel cage rotor for an induction motor |
| DE102013002141A1 (en) | 2012-02-14 | 2013-08-14 | Fanuc Corporation | Rotor with reinforced squirrel cage conductor body and manufacturing method thereof |
| CN111185658A (en) * | 2020-01-14 | 2020-05-22 | 广东省材料与加工研究所 | Welding method of aluminum oxide copper and steel and application thereof |
-
1990
- 1990-03-07 JP JP5740690A patent/JPH03261354A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO341566B1 (en) * | 2004-06-15 | 2017-12-04 | Siemens Ag | Rotor for electric motor, compressor unit with rotor, process for producing an electric motor |
| WO2005124973A1 (en) | 2004-06-15 | 2005-12-29 | Siemens Industrial Turbomachinery B.V. | Rotor for electric motor, compressor unit provided with rotor, method for producing a rotor for an electric motor |
| JP2008503197A (en) * | 2004-06-15 | 2008-01-31 | シーメンス インダストリアル ターボマシナリー ベーヴェー | Rotor for electric motor and manufacturing method thereof |
| US7646128B2 (en) * | 2004-06-15 | 2010-01-12 | Siemens Aktiengesellschaft | Rotor for electric motor, compressor unit provided with rotor, method for producing a rotor for an electric motor |
| EP2403116A1 (en) | 2004-06-15 | 2012-01-04 | Siemens Aktiengesellschaft | Rotor for electric motor, compressor unit provided with rotor, method for producing a rotor for an electric motor |
| NL1026424C2 (en) * | 2004-06-15 | 2005-12-19 | Siemens Ind Turbomachinery B V | Rotor for electric motor, compressor unit provided with rotor, method for manufacturing a rotor for an electric motor. |
| CN102598489A (en) * | 2009-09-15 | 2012-07-18 | 曼柴油机和涡轮机欧洲股份公司 | Squirrel-cage Rotor And Method For Producing Such A Squirrel-cage Rotor |
| JP2013504997A (en) * | 2009-09-15 | 2013-02-07 | マン・ディーゼル・アンド・ターボ・エスイー | Cage rotor and method for manufacturing the cage rotor |
| DE102012003195A1 (en) | 2011-02-24 | 2012-08-30 | Fanuc Corporation | Squirrel cage rotor for an induction motor |
| US8791618B2 (en) | 2011-02-24 | 2014-07-29 | Fanuc Corporation | Squirrel-cage rotor for induction motor |
| US8803399B2 (en) | 2012-02-14 | 2014-08-12 | Fanuc Corporation | Rotor with reinforced squirrel-cage conductive body and manufacturing method thereof |
| DE102013002141A1 (en) | 2012-02-14 | 2013-08-14 | Fanuc Corporation | Rotor with reinforced squirrel cage conductor body and manufacturing method thereof |
| DE102013002141B4 (en) | 2012-02-14 | 2022-07-07 | Fanuc Corporation | Rotor with reinforced squirrel-cage conductor body and manufacturing method for this |
| CN111185658A (en) * | 2020-01-14 | 2020-05-22 | 广东省材料与加工研究所 | Welding method of aluminum oxide copper and steel and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8181333B2 (en) | Method of manufacturing squirrel-cage rotor | |
| US9729035B2 (en) | Electric motor rotor | |
| JP3718541B2 (en) | Vertical rotor | |
| EP0341317A1 (en) | Structure of rotor for high speed induction motor | |
| JP5589061B2 (en) | Cage rotor with cast short bar | |
| JPS60149703A (en) | Production of cam shaft | |
| KR0177190B1 (en) | Method for manufacturing cage rotor for induction motor | |
| JP2012253998A (en) | Electric motor rotor | |
| JPH03261354A (en) | Manufacture of solid rotor for induction motor | |
| JP2015061459A (en) | Induction motor and manufacturing method therefor | |
| JP3701413B2 (en) | Solid rotor for vertical induction motor and method for manufacturing the same | |
| US4024628A (en) | Process for manufacturing a two-pole solid rotor | |
| JP2010154730A (en) | Rotor for motor and method of manufacturing the same | |
| US4349759A (en) | Commutator for electrical machines | |
| KR20230008038A (en) | Rotor of dynamo electric rotating machine, dynamo electric machine having rotor and method for manufacturing rotor | |
| JPS61157779A (en) | Bearing device for compressor | |
| JPH01224185A (en) | Manufacture of metallic flange bobbin | |
| JPS6069267A (en) | Connecting rod for radial piston motor and manufacture thereof | |
| JPS63265558A (en) | Rotor for stepping motor | |
| JPH09117084A (en) | Manufacture of rotor for reluctance synchronous motor | |
| JP2001124084A (en) | Bearing and its manufacturing method | |
| JPH10174386A (en) | Manufacture of cage rotor | |
| KR0139598B1 (en) | Cage rotor for high speed induction motor | |
| JPH04251533A (en) | Rotor for ac rotating machine | |
| JPH01274650A (en) | Manufacture of electrical potating machine rotor |