JPS6364554A - Manufacture of molded rotor - Google Patents

Manufacture of molded rotor

Info

Publication number
JPS6364554A
JPS6364554A JP20376386A JP20376386A JPS6364554A JP S6364554 A JPS6364554 A JP S6364554A JP 20376386 A JP20376386 A JP 20376386A JP 20376386 A JP20376386 A JP 20376386A JP S6364554 A JPS6364554 A JP S6364554A
Authority
JP
Japan
Prior art keywords
mold
rotor
space
atmosphere
rotor 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.)
Pending
Application number
JP20376386A
Other languages
Japanese (ja)
Inventor
Kazuo Ichikawa
市川 和夫
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP20376386A priority Critical patent/JPS6364554A/en
Publication of JPS6364554A publication Critical patent/JPS6364554A/en
Pending legal-status Critical Current

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  • Induction Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

PURPOSE:To perform die casting of a slot bar soundly, by a method wherein a small hole communicating with the atmosphere is provided on a metal mold of an enclosing space of a rotor core. CONSTITUTION:A die casting metal mold is constituted by a pair of split molds 3, 4 having spaces 1, 2 to form an end ring and a vane, and an intermediate mold 7 having a space 6 enclosing a stator core 5. The split mold 3 is provided with a pouring gate 8, and the split mold 4 is provided with a pushing plate 9 to define the top end of the end ring and the vane forming space 2. Further the pushing plate 9 is provided with a vent groove 10 communicating with the atmosphere. The intermediate mold 7 is provided with the enclosing space 6 of the core 5, and an intermediate ring mold 15 are installed. In this case, the intermediate ring mold 15 is provided with a small hole 16 which penetrates the cylindrical intermediate ring mold 15 radially. Communication of the small hole 16 with the atmosphere is performed by a recess groove 17 and a hole 18 of the intermediate mold 7. In this constitution, during the die casting, air or the like spouted through the small hole 16 is exhausted to the atmosphere efficiently.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) 本発明は鋳込かご形導体を有する回転子の製造方法に関
する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a method of manufacturing a rotor having cast squirrel cage conductors.

(従来の技(5) この種の製造方)ムとしては例えば特公昭51−495
71号公報が知られている。この方法は第3図に示すよ
うに、エンドリングと羽根を形成する空間1,2を右し
た一対の割型3,4と、そして回転子鉄心5を収納する
空間6を首1する中間!X27によって8,4込金型を
形成する。割型3に(,1、回転子鉄心収納空間6の一
側に湯口8が設りられている。対向づる割型4には、エ
ンドリングと羽根形成空間2の先端を画定する当板9を
設け、この当、tI20にはエンドリングと羽根形成空
間2と大気中どを連通ずるガス族さiI′1S10が設
置られている。回転子鉄心収納空間G内に所定枚数積層
された袴数個のスロワ1〜孔11をイ4する円筒形の回
転子積層鉄心5を挿入りる。しかる後、2次埒体材料と
なる溶融アルミニウム簀を湯口8を通してグイキャスト
18造し、スロットパー12、エンドリング13a、1
3b、羽114a、1.1bを一体形成する。しかし、
エンドリングと羽根形成空間2及び回転子鉄心6のスロ
ット孔11に入っていた空気又はガスは、当板9に設(
)られているガス扱き満10を通って人気へiJl出さ
れ鋳、込fi1転子を1qる。
(Conventional Technique (5) This kind of manufacturing method)
No. 71 is known. As shown in FIG. 3, this method consists of a pair of split molds 3 and 4 with spaces 1 and 2 forming the end rings and vanes on the right, and a space 6 in the middle with the space 6 housing the rotor core 5. An 8,4-inclusive mold is formed using X27. The split mold 3 is provided with a sprue 8 on one side of the rotor core storage space 6.The opposing split mold 4 has a plate 9 that defines the end ring and the tip of the blade forming space 2. A gas group iI'1S10 is installed in this part tI20, which communicates the end ring, the blade forming space 2, and the atmosphere. A cylindrical rotor laminated core 5 is inserted into each of the slot holes 1 to 11. After that, a molten aluminum tank, which will become the secondary material, is passed through a sprue 8 and cast 18. , end ring 13a, 1
3b, wings 114a, and 1.1b are integrally formed. but,
The air or gas that has entered the end ring, the blade forming space 2 and the slot hole 11 of the rotor core 6 is removed by
) has been treated as a gas and has passed through the full 10 to popular iJl casting, including fi 1 trochanter 1q.

(発明が解決しようとづる問題点) この従来の方法は、金型空間内及びn転子鉄心のスロワ
1〜孔内の空気又はガスを、グイキャスト鋳造時に効率
良く排出り′ることかできる。しかし、特殊形状の回転
7即ら積層鉄心長が艮くスロワ1へ孔が小さな場合には
、鋳3^された溶融アルミニウムはスロット孔での冷J
JI速度が太きく、Vi造デアルミニウム熱容量の減少
からスロ孔内−礼内で空気を巻き込んだまま)ぼ固して
スロットバーを形成しやすい。
(Problems to be Solved by the Invention) This conventional method makes it possible to efficiently exhaust the air or gas in the mold space and in the slots 1 to 1 of the n-trochanter core during gui-casting. . However, if the hole in the slot 1 is small due to the special shape of the rotor 7, or the length of the laminated iron core, the molten aluminum cast 3^ will pass through the cold J in the slot hole.
Since the JI speed is high and the heat capacity of Vi-made aluminum decreases, it is easy to harden and form a slot bar (with air trapped inside the slot hole).

本発明は、12f珠形状の回転子において乙、特にスロ
ワ1〜バーを叶仝にグイキャスト鋳造時ができる鋳込回
転子の製造方法を提供することを目的とする。
An object of the present invention is to provide a method for manufacturing a cast rotor in which a 12F bead-shaped rotor can be cast, especially the thrower 1 to the bar.

[発明のG4成] (問題点を解決するための手段) 上記目的を達成するため、本発明においては、形及び当
仮に17(り回転〒鉄心の入る回転子収納空間と該回転
子収納空間に隣1とりるエンドリング及び羽(R形成空
間とを形成し、回転子SJ+心を前記回転子鉄心収納空
間(ごト1i着したのI−、、前記回転子鉄心収納空間
の一方のエンドリング及び羽(I2形成空間に設けた湯
口から、溶融状態にあるン゛ン体祠圃を’rt入Jる方
法にJ3いて、前記回転子収納空間を形成する金型に大
気と連通する細孔を放射状に設りて、13き、前記湯口
から溶融状態の)り体Lj料を高圧で注入することを特
徴どりる鋳込回転子の)ツ遣方法を1に供Jる。
[G4 structure of the invention] (Means for solving the problem) In order to achieve the above object, the present invention has a shape and a rotor storage space in which the iron core is inserted and the rotor storage space. The end ring and vane (R forming space) are taken next to each other, and the rotor SJ+ is placed in the rotor core storage space (I-), one end of the rotor core storage space. In the method of inserting the ring and blades (I2) into the mold in a molten state through a sprue provided in the forming space, a hole communicating with the atmosphere is inserted into the mold forming the rotor housing space. A casting method for a casting rotor is provided in 1, which is characterized in that holes are provided radially, and a molten solid Lj material is injected at high pressure from the sprue.

(作 用) このように構成されたしのにおいては、ダイキャIスト
鋳)青口!口こスロワ[・孔内の2気又はガスは、注入
された溶湯の流れにJ、って圧縮側1[され、積層鉄板
間からも噴出する動きを生fろが、その時回転子収納空
間金型の人気と連通した?tll孔に」;って積層鉄板
間から噴出した空気又はガス(よ金型内に停滞ずろこと
なく人気へfA串良く1j[出される。
(Function) In a case configured in this way, die cast I cast) Aoguchi! The gas or gas inside the hole is compressed by the flow of the injected molten metal, causing a movement that ejects from between the laminated steel plates, but at that time the rotor storage space Did it connect with the popularity of molds? Air or gas is ejected from between the laminated iron plates into the holes without stagnation or stagnation within the mold.

(実施例) 以下本発明の一実施例を図面によって説明Jる。第1図
にJ3いてエンドリングと羽根を形成する空間1,2を
有した一対の割型3,4、そして回転子iス心5を収納
する空間6を右する中間!S!7にJ、つて鋳込金型を
形成し、割型3には湯口8を設け、7.11型4には、
エンドリングと羽根形成空間2の先端を画定づる当(反
9を設け、当板9にはガス扱き嵩10が設(プられて大
気とj%通している構成は第3図と同様である。本発明
に依り、前記中間型7に、J3いて、回転子鉄心5を収
納り°る空間6を右し、中間型7に組み合わさって中間
型7の入子となる円筒形の中間リング型15を設け、さ
らにこの中間リング型15には故Qj状に円筒の中間リ
ング型15を11通ずる細孔1Gを設りる。この細孔1
Gは、回転子鉄心のグイキャスh Ur造正圧力J:る
回転子鉄心のスロワ1〜孔と外周部の間の回転子鉄板デ
ツプ部の外径方向への塑↑’l変形、又は回転子鉄心の
金型への属人及びグイ1= S’スト鋳造後の鋳込回転
子の取出しに支障のない大きさとJ゛る。実験結果によ
ればΦ2〜3Mnとした細孔にで良好な結果がjr7ら
れた。細孔1Gど大気への連通は中間リング型15外因
に設りた凹)1が17と中間型7に設(づられた穴18
によって形成されろ。
(Example) An example of the present invention will be described below with reference to the drawings. In Fig. 1, J3 shows a pair of split molds 3 and 4 having spaces 1 and 2 for forming end rings and blades, and a middle space 6 for housing the rotor core 5! S! 7 and J to form a casting mold, the split mold 3 is provided with a sprue 8, and the 7.11 mold 4 is
A plate 9 is provided to define the tip of the end ring and the blade forming space 2, and the plate 9 is provided with a gas handling volume 10 (the structure is similar to that shown in Fig. 3). According to the present invention, a cylindrical intermediate ring is provided in the intermediate mold 7, which has a space 6 for housing the rotor core 5, and which is combined with the intermediate mold 7 and becomes a nest for the intermediate mold 7. A mold 15 is provided, and this intermediate ring mold 15 is provided with a pore 1G that passes through the cylindrical intermediate ring mold 11 in a Qj shape.
G is the hardening pressure of the rotor core. The iron core must be of a size that does not interfere with the removal of the cast rotor after casting. According to the experimental results, good results were obtained with pores of Φ2 to 3Mn. The pore 1G communicates with the atmosphere through a concave hole 1 made in the external part of the intermediate ring mold 15 and a hollow hole 18 made in the intermediate mold 7.
be formed by

この」;うにして、所定枚数16層された間口部のイr
い?12100スo ツl−7L 11を右する回転子
f11 A’IV、心5を回転子鉄心収納空間6’\挿
入し、2次導体となる溶融アルミニウム等を408を通
してダイキャスト鋳造ツると、溶融アルミニウムは割型
3に設けられたエンドリングと羽根形成空間1を、☆ま
たしスロワ1〜孔11を通る。この時グイキ1、ノス1
〜SJI造は溶湯を)、(1旧間でか゛つ高圧力で注入
するため、エンドリングと羽根形成空間1及び回転子鉄
心5のス[lブト孔11に入っていたZ 電文(まガス
は急激に圧縮される。ざらに回転子積層鉄心5は、鉄1
反を積み手b/(乙のであるため、S久(V中休のIf
’<面あらさ及び鉄板占積率′qの影響にJ、つて扶1
反問に隙間(通常2 / 1000 ntm以1:)を
生じている。
In this way, a predetermined number of 16 layers are applied to the frontage area.
stomach? 12100 S o Tsu l-7L 11 is placed on the right rotor f11 A'IV, the core 5 is inserted into the rotor core storage space 6'\, and molten aluminum etc. which will become the secondary conductor is die cast through 408. Molten aluminum passes through the end ring provided in the split mold 3 and the blade forming space 1, and through the thrower 1 to hole 11. At this time, Guiki 1, Nos 1
~ In order to inject the molten metal at very high pressure between the end ring and the blade forming space 1 and the rotor core 5, The rotor laminated core 5 is compressed rapidly.
The person who stacks the fabric b/(Because it is Otsu, S Ku (V mid-day break If
'<The influence of surface roughness and steel plate space factor'q,
A gap (usually 2/1000 ntm or more) is created in the counterquestion.

したがって圧縮された空電文tまガスは、ス・ロワ1一
孔11から鉄板外周へ1l(1出されるが、第2図に示
づ−ように中間リング型15に設(〕られた細孔16−
は、凹溝17と第1図に示づ中間ff+ 7に設()ら
れた穴18によって大気と連通されているため、回転子
鉄心収納空間6内に停di1づることなく、圧縮凸れた
空気又はガスを人気中l\+Jl出りることができる。
Therefore, 1 liter of the compressed static gas is discharged from the lower hole 11 to the outer periphery of the steel plate, but as shown in FIG. 16-
is communicated with the atmosphere through the concave groove 17 and the hole 18 provided in the intermediate ff+7 shown in FIG. You can get air or gas out.

その後溶融アルミニウム1よ割型4のエンドリングと羽
根形成空間2を満たし、ざらに含型内に残っている空気
又はガスは従来と同様に当板9に設けられたガス抜き溝
10によって大気へ排出される。そして一定時間後、型
より回転子を取り出して鋳込回転子の製造を終える。
After that, the end ring and blade forming space 2 of the molten aluminum 1 and the split mold 4 are filled, and the air or gas remaining in the mold is released to the atmosphere through the gas vent groove 10 provided in the backing plate 9, as in the conventional case. It is discharged. After a certain period of time, the rotor is removed from the mold and the production of the cast rotor is completed.

ダイキA7スト鋳造の充填時間は熱伝導から鋳造製品の
肉、ン又はその2乗に比例するので、特に回転子鉄心の
スロット孔が小さくスロット幅の狭い回転子は、その然
容0からら溶融アルミニウムの充填口)コ周速度が速く
なり、圧縮された金バl内の空気又はガスを巻き込みや
すいが、回転子鉄心収納空間を人気中と連通させること
により、積層鉄板間から噴出する空気又はガスをF¥浦
さぜることなく良好に大気へ排出でき、スロットバーを
健全にグイキャスト装造できる。
The filling time for Daiki A7 stroke casting is proportional to the thickness of the cast product due to heat conduction, or its square. Therefore, especially for rotors with small slot holes in the rotor core and narrow slot width, the filling time is proportional to the thickness of the cast product due to heat conduction. The circumferential speed of the aluminum filling port increases, making it easy to entrain air or gas in the compressed gold metal. However, by communicating the rotor core storage space with the metal plate, air or gas blowing out between the laminated iron plates can be prevented. The gas can be properly discharged to the atmosphere without stirring the gas, and the slot bar can be installed in good condition by Guicast.

[発明の効果] 以上詳述したように、本発明によrtば回転子鉄心収納
空間金型に大気どを連通づる細孔を設置′Jだので、ダ
イ1−\2ス1〜1.′Iに回転子積層鉄板間から噴出
されるスロット孔の圧縮された空電文(ユガスを、鉄心
収納空間に停7Hさせることなく効果的に人気へ逃がづ
ことができ、叶仝な詰込回転子のシJ造方法を冑ること
がぐきる。
[Effects of the Invention] As described in detail above, according to the present invention, the rotor core storage space mold is provided with pores communicating with the atmosphere, so that the die 1-\2s 1-1. The compressed static air pattern of the slot holes ejected from between the laminated steel plates of the rotor (Yugas can be effectively popularized without stopping in the core storage space, and it can be packed easily) You can learn how to build a rotor.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す鋳込回転子装造構成の
断面図、第2図は第1図に用いられる回転子鉄心収納空
間金型の斜視図、第3図ルよ従来の鋳込回転子装造構成
の断面図である。 1.2・・・エンドリングと羽根形成空間、3.4・・
・割型、 5・・・回転子鉄心、6・・・回転子鉄心収
納空間、 7・・・中間へ1.8・・・;9口、 9・
・・当板、 10・・・ガス抜さω1.11・・・スロ
ワ1〜孔、 12・・・スロワ1−バー、13a、13
b・・・エンドリング、 14a、14b・・・羽根、 15・・・中間リング型、 16・・・細孔、17・・
・凹溝、 18・・・穴。 代理人 弁理士 則 近 憲 イら 同       三  俣  弘  文第 1 図 第2ム
Fig. 1 is a sectional view of a cast rotor equipment configuration showing an embodiment of the present invention, Fig. 2 is a perspective view of a rotor core storage space mold used in Fig. 1, and Fig. 3 is a conventional one. FIG. 1.2... End ring and blade forming space, 3.4...
・Split mold, 5... Rotor core, 6... Rotor core storage space, 7... To the middle 1.8...; 9 ports, 9.
...Backing plate, 10...Gas vented ω1.11...Thrower 1-hole, 12...Thrower 1-bar, 13a, 13
b... End ring, 14a, 14b... Vane, 15... Intermediate ring type, 16... Pore, 17...
・Concave groove, 18... hole. Agent: Patent Attorney Noriyoshi Chika Hirofumi Mitsumata No. 1 Figure 2 M

Claims (1)

【特許請求の範囲】[Claims] 形及び当板に依り回転子鉄心の入る回転子収納空間と該
回転子収納空間に隣接するエンドリング及び羽根形成空
間とを形成し、回転子鉄心を前記回転子鉄心収納空間に
装着したのち、前記回転子鉄心収納空間の一方のエンド
リング及び羽根形成空間に設けた湯口から溶融状態にあ
る導体材料を注入する方法において、前記回転子鉄心収
納空間を形成する金型に大気と連通する細孔を放射状に
設けておき、前記湯口から溶融状態の導体材料を高圧で
注入することを特徴とする鋳込回転子の製造方法。
After forming a rotor storage space in which the rotor core is placed and an end ring and blade forming space adjacent to the rotor storage space depending on the shape and the plate, and installing the rotor core in the rotor core storage space, In the method of injecting a molten conductor material from a sprue provided in one end ring and vane forming space of the rotor core storage space, a mold forming the rotor core storage space has pores communicating with the atmosphere. A method for manufacturing a casting rotor, characterized in that conductive material in a molten state is injected at high pressure from the sprues provided in a radial pattern.
JP20376386A 1986-09-01 1986-09-01 Manufacture of molded rotor Pending JPS6364554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20376386A JPS6364554A (en) 1986-09-01 1986-09-01 Manufacture of molded rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20376386A JPS6364554A (en) 1986-09-01 1986-09-01 Manufacture of molded rotor

Publications (1)

Publication Number Publication Date
JPS6364554A true JPS6364554A (en) 1988-03-23

Family

ID=16479421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20376386A Pending JPS6364554A (en) 1986-09-01 1986-09-01 Manufacture of molded rotor

Country Status (1)

Country Link
JP (1) JPS6364554A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0379831U (en) * 1989-12-08 1991-08-15
EP0865146A1 (en) * 1997-03-03 1998-09-16 General Electric Company Methods and apparatus for casting rotor bars and end rings
US6612015B2 (en) * 1999-12-30 2003-09-02 Gsi Lumonics Corporation Method for making a galvanometer with axial symmetry
JP2005269258A (en) * 2004-03-18 2005-09-29 Nec Corp Coding modulation apparatus and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0379831U (en) * 1989-12-08 1991-08-15
EP0865146A1 (en) * 1997-03-03 1998-09-16 General Electric Company Methods and apparatus for casting rotor bars and end rings
US6612015B2 (en) * 1999-12-30 2003-09-02 Gsi Lumonics Corporation Method for making a galvanometer with axial symmetry
JP2005269258A (en) * 2004-03-18 2005-09-29 Nec Corp Coding modulation apparatus and method
JP4622276B2 (en) * 2004-03-18 2011-02-02 日本電気株式会社 Coded modulation apparatus and method

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