JPS6152128A - Canned motor - Google Patents
Canned motorInfo
- Publication number
- JPS6152128A JPS6152128A JP17558984A JP17558984A JPS6152128A JP S6152128 A JPS6152128 A JP S6152128A JP 17558984 A JP17558984 A JP 17558984A JP 17558984 A JP17558984 A JP 17558984A JP S6152128 A JPS6152128 A JP S6152128A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- protrusion
- slot opening
- axial direction
- portions
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
【発明の詳細な説明】 〔発明の技術分野〕 この発明はキャンドモータの改良に関するものである。[Detailed description of the invention] [Technical field of invention] This invention relates to improvements in canned motors.
従来のこの種の電動機即ち、実開昭55−25779号
公報に示される電f!h機を第1図に従って説明する。A conventional electric motor of this type is the electric f! The h machine will be explained according to FIG.
図において1はステータコア1aとステータコイル1b
とで構成されるステータ、2は内周部でステータ1を支
持する筒状でステンレス鋼板製のステータフレーム、3
.4はステータフレーム2の軸方向両端に夫々溶接され
tこステンレス鋼板の端板を構成したつば、5はステー
タ1の内周に嵌入すると共に、両端がつば3.4に溶接
されtこキャン、6はつば3にステンレスボルト7によ
り装着されたステンレス鋼製のブラケット、8;よブラ
ケット6とボルト7との間に押入されtこシール用パツ
キン、9はっば4にステンレスボルト10により装着さ
れたステンレス鋼製のブラケット、11ばブラケット9
とボルト10との間に装着されたシール用パツキン、1
2.13はブラケット6.9に対応装着されたラジアル
軸受、14.15はブラケット6.9の軸方向内側端部
に対応装着されたスラスト軸受、16はステータ1と対
をなすロータ、17はロータ16を支持すると共に、軸
受12.13に回転自在に支承されるステンレス鋼製の
軸、18.19は軸17に装着されたスラスト円板で、
スラスト軸受14.15と対をなすものである。20ば
ブラケット9に着脱自在に装着された軸シールである。In the figure, 1 is a stator core 1a and a stator coil 1b.
2 is a cylindrical stator frame made of a stainless steel plate that supports the stator 1 on its inner circumference; 3 is a stator frame made of a stainless steel plate;
.. Reference numeral 4 denotes a collar that is welded to both axial ends of the stator frame 2 and constitutes an end plate of a stainless steel plate; 5 is fitted into the inner periphery of the stator 1, and both ends are welded to the collar 3.4; 6 is a stainless steel bracket attached to the collar 3 with a stainless steel bolt 7; 8; a sealing gasket inserted between the bracket 6 and the bolt 7; 9 is attached to the collar 4 with a stainless steel bolt 10; stainless steel bracket, 11b bracket 9
and a sealing gasket installed between the bolt 10 and the bolt 10, 1
2.13 is a radial bearing attached to the bracket 6.9, 14.15 is a thrust bearing attached to the axially inner end of the bracket 6.9, 16 is a rotor paired with the stator 1, and 17 is a thrust bearing attached to the axially inner end of the bracket 6.9. A stainless steel shaft that supports the rotor 16 and is rotatably supported by bearings 12.13, 18.19 is a thrust disk attached to the shaft 17,
It forms a pair with thrust bearings 14 and 15. 20 is a shaft seal detachably attached to the bracket 9.
上記のように構成されたものにおいては、キャン5ば一
般に平板を円筒状に丸めて、その突合せ部を溶接してい
た。更に、円筒状のキャン5はステータ1内に嵌合され
、その各端にっば3.4が溶接されてる。In the structure constructed as described above, the can 5 is generally a flat plate rolled into a cylindrical shape, and the abutted portions are welded. Furthermore, a cylindrical can 5 is fitted into the stator 1 and has a tab 3.4 welded to each end thereof.
ところが、キャン5の突合せ部は他の部分に比し、厚さ
が大となり易く、キャン5の内側にロー6の外周が接し
、その摩耗粉により、軸受12.13や軸シール20の
寿命が低下するという問題点があった。However, the butt part of the can 5 tends to be thicker than other parts, and the outer periphery of the row 6 comes into contact with the inside of the can 5, and the abrasion powder can shorten the life of the bearings 12 and 13 and the shaft seal 20. There was a problem with the decline.
待にキャン5の突合せ部をシーム溶接しtこものでは、
突合せ部が重ね合されているなめ、肉厚が大となるばか
りではなく、シーム溶接によって、突合せ部の端部が反
ることにより、実質的に厚さが大となり、キャン5とロ
ータ6との接触の恐れが大となる欠点があった。I'm waiting for seam welding of the butt part of can 5,
Not only does the wall thickness increase due to the overlap of the butt portions, but the end portions of the butt portions warp due to seam welding, resulting in a substantial increase in thickness, and the can 5 and rotor 6 The disadvantage was that there was a great risk of contact with other people.
この発明は上記の欠点を解消するなめになされたもので
、キャンの突合せ部を含む軸方向の突条をキャンに形成
し、との突条をステータのスロット開口部の軸方向の一
部に形成してこの突条をスロット開口部内に位置させる
ことにより、キャンの突合せ部を確実にスロット開口部
内に位置決めでき、キャンとロータとの接触を確実に防
止できると共にステータ内へのキャンの押入が容易とな
るキャンドモータを提供するものであ慝。This invention has been made to solve the above-mentioned drawbacks, and includes forming an axial protrusion on the can that includes the abutting part of the can, and forming the protrusion on the axial part of the slot opening of the stator. By forming this protrusion and positioning it within the slot opening, the abutting part of the can can be reliably positioned within the slot opening, and contact between the can and the rotor can be reliably prevented, and the can can not be pushed into the stator. We provide a canned motor that is easy to use.
以下、この発明の一実施例を第2図ないし第4図で説明
する。図において、ICはステータコア1aのスロット
開口部、ldはステータコイル1bを絶縁するウェッジ
、21はステータ1の内周に嵌入されると共に両端がつ
ば3.4に溶接されるキャンで、平板を円筒状に丸めて
形成されており、その突合せ部21bはシーム溶接にて
固着され、この突合せ部21bの軸方向には上記スロッ
ト開口部1c内に位置される突条21aが形成されてい
る。An embodiment of the present invention will be described below with reference to FIGS. 2 to 4. In the figure, IC is a slot opening of the stator core 1a, ld is a wedge that insulates the stator coil 1b, and 21 is a can that is fitted into the inner circumference of the stator 1 and welded at both ends to the collar 3.4, which is a flat plate shaped like a cylinder. The abutting portion 21b is fixed by seam welding, and a protrusion 21a positioned within the slot opening 1c is formed in the axial direction of the abutting portion 21b.
なお、突条21mはスロット開口部ICの軸方向の一部
に形成されている。Note that the protrusion 21m is formed in a part of the slot opening IC in the axial direction.
上記のように構成されたものにおいては、キャン21を
ステータ1内に挿入する場合には、突条21aをスロッ
ト開口部lc内に合わせて、キャン21を嵌合する。In the structure configured as described above, when inserting the can 21 into the stator 1, the can 21 is fitted with the protrusion 21a aligned with the slot opening lc.
ここで、突条21aにより、キャン21とステータ1と
の相対回動が防止されており、突合せ部21bはスロッ
ト開口部ICに確実に位置決めされることになり、突合
せ部21bのスロットの歯1 e (7)内周にずれる
ことが抑制される。従って、キャン21の内周とロータ
6の接触は防止されている。Here, the protrusion 21a prevents relative rotation between the can 21 and the stator 1, and the abutting portion 21b is reliably positioned in the slot opening IC. e (7) Displacement toward the inner circumference is suppressed. Therefore, contact between the inner circumference of the can 21 and the rotor 6 is prevented.
まtこ、一方では、突条21aはスロット開口部IC内
壁やステータコアla内のウニ・ノジldlこも接する
ため、軸方向の相対移動も抑えられる。なお、キャン2
1はっば3、又は4内を通してステータ1内に液入され
ることになり、突条21&がつば3又は4内を通る時に
キャン21全体が弾力を持って変形するが、っば3又は
4を通過すると再び弾力で突出することになり、挿入時
における突条211自体の変形は抑制される。On the other hand, since the protrusion 21a also contacts the inner wall of the slot opening IC and the sea urchin/nozzle inside the stator core la, relative movement in the axial direction is also suppressed. In addition, Can 2
1 The liquid is poured into the stator 1 through the inside of the collar 3 or 4, and when the protrusion 21& passes through the inside of the collar 3 or 4, the entire can 21 deforms with elasticity. 4, the protrusion 211 protrudes again due to elasticity, and deformation of the protrusion 211 itself during insertion is suppressed.
ここで、突条21aはスロット開口部1cの軸方向の全
域に対応して形成されているのではなく、軸方向の一部
に形成されており、キャン21をつば3又は4内を通し
て挿入させる場合、容易につば3又は4内を通過でき、
スロット開口部ICに対する突条21aの位置合わせが
容易となる。つまり、っば4にキャン21を押入する際
に、突条21&が長い場合には、スロット開口部ICと
突条21色との位置合わせの際に、突条21mがスロッ
ト開口部ICに合致していない場合であっても、突条2
1aとつば4内周との押入抵抗のため、不一致を手の感
覚では判断できず、スロットの歯1eに突条21aが乗
り上げるという組立不良が発生する恐れが、突条21m
をスロット開口部ICにおける軸方向の一部に対応して
設けているので、スロット開口部1cと突条21mとの
位置合ゎせをステーク1内にキャン21を挿入する際の
手に加わる荷重の感覚で判断できることになる。Here, the protrusion 21a is not formed corresponding to the entire axial direction of the slot opening 1c, but is formed in a part of the axial direction, and allows the can 21 to be inserted through the collar 3 or 4. If so, it can easily pass through the brim 3 or 4,
The protrusion 21a can be easily aligned with the slot opening IC. In other words, when pushing the can 21 into the slot 4, if the protrusion 21& is long, the protrusion 21m will align with the slot opening IC when aligning the slot opening IC and the color of the protrusion 21. Even if the protrusion 2 is not
Due to the push-in resistance between 1a and the inner periphery of the rib 4, it is impossible to judge the mismatch by feeling with the hand, and there is a risk that an assembly failure will occur in which the protrusion 21a rides on the tooth 1e of the slot.
is provided corresponding to a part of the slot opening IC in the axial direction, so that the load applied to the hand when inserting the can 21 into the stake 1 can be adjusted by adjusting the position of the slot opening 1c and the protrusion 21m. This can be determined by feeling.
次にこの発明の他の実施例を第5図で説明する。Next, another embodiment of the present invention will be described with reference to FIG.
この構成では、ステータ1の端面1fとっば4の端面4
aとの間隔Aに対し、突条21aの軸方向寸法Bは小さ
く構成されている。従って、キャン21をつば3に挿入
してい(途中において、#55図のように、突条21a
はステータ1の端面1fとっば3の端面3aとの間に自
由状態となるため、スロット開口部1cと突条21aと
の位置合わせが容易となる。In this configuration, the end face 1f of the stator 1 and the end face 4 of the bridge 4 are
The axial dimension B of the protrusion 21a is configured to be smaller than the distance A from the protrusion 21a. Therefore, the can 21 is inserted into the collar 3 (as shown in Figure #55, the protrusion 21a
is in a free state between the end surface 1f of the stator 1 and the end surface 3a of the rib 3, so that the slot opening 1c and the protrusion 21a can be easily aligned.
以上のようにこの発明はキャンの突かせ部を含む軸方向
の突条をキャンに形成し、この突条をステータのスロッ
ト開口部の軸方向の一部に形成してこの突条をスロット
開口部内に位置させたので、キャンの突合せ部における
その溶接部分を確実にスロット開口部内に位置決めでき
、ステータとロータとの接触を確実に防止できる効果が
あるばかりでなく、ステータ内へのキャンの旅人作業が
容易となる効果がある。また、他の発明では、突条の軸
方向の長さがステータの端面と、この端面ト対向する端
板の端面との間隔よりも小さく形成したので、スロット
開口部と突条の位置合わせが極めて容易となる効果があ
る。As described above, the present invention forms an axial protrusion including the protruding part of the can on the can, forms this protrusion on a part of the slot opening of the stator in the axial direction, and connects the protrusion to the slot opening. Since the welded part at the butt part of the can can be reliably positioned within the slot opening, this not only has the effect of reliably preventing contact between the stator and rotor, but also prevents the can from traveling into the stator. This has the effect of making work easier. Furthermore, in another invention, the length of the protrusion in the axial direction is formed to be smaller than the distance between the end face of the stator and the end face of the end plate that faces this end face, so that the alignment of the slot opening and the protrusion is difficult. This has the effect of making it extremely easy.
第1図は従来装置を示す断面図、第2図はこの発明の一
実施例を示す要部断面図、第3図は第2図のキャンの拡
大断面図、第4図はこの発明のキャンを示す要部断面図
、第5図はこの発明の他の実施例を示す要部拡大断面図
である。図中、1はステータ、IC1はスロット開口部
、1fは端面、2はステータフレーム、4はつば、4a
は端面、21はキャン、21aは突条、21bは突合せ
部である。
なお、各図中同一符号は同−又は相当部分を示す。Fig. 1 is a sectional view showing a conventional device, Fig. 2 is a sectional view of essential parts showing an embodiment of the present invention, Fig. 3 is an enlarged sectional view of the can of Fig. 2, and Fig. 4 is a sectional view of the can of the present invention. FIG. 5 is an enlarged sectional view of the main part showing another embodiment of the present invention. In the figure, 1 is a stator, IC1 is a slot opening, 1f is an end face, 2 is a stator frame, 4 is a collar, 4a
21 is an end face, 21 is a can, 21a is a protrusion, and 21b is an abutting portion. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (4)
せ部が溶接されて円筒状に形成され、上記ステータ内周
に嵌合されをたキヤン、及びこのキヤンの突合せ部を含
んで形成され、上記ステータのスロツト開口部内に位置
される軸方向の突条を備え、この突条は上記スロツト開
口部の軸方向の一部に形成されていることを特徴とする
キヤンドモータ。(1) A cylindrical stator frame abutting portion surrounding the stator is welded to form a cylindrical shape, and the stator frame is formed to include a can fitted to the inner periphery of the stator and the abutting portion of the can, and the stator frame 1. A canned motor comprising an axial protrusion located within a slot opening of the motor, the protrusion being formed in a portion of the slot opening in the axial direction.
溶接されていることを特徴とする特許請求の範囲第1項
記載のキヤンドモータ。(2) The canned motor according to claim 1, wherein the abutted portions are overlapped and the overlapped portions are seam welded.
合せ部が溶接されて円筒状に形成され、上記ステータ内
周に嵌合されたキヤン、このキヤンの各端と上記ステー
タフレームの各端とに跨つて水密に結合される一対の端
板、及び上記キヤンの突合せ部を含んで形成され、上記
ステータのスロツト開口部内に位置される軸方向の突条
を備え、この突条は上記スロツト開口部の軸方向の一部
に形成されていると共にその突条の軸方向の長さは上記
ステータの端面と、この端面と対抗する上記端板の端面
との間隔よりも小さく形成されていることを特徴とする
キヤンドモータ。(3) A cylindrical stator frame that surrounds the stator, a can that is formed into a cylindrical shape by welding the abutting portions and is fitted to the inner periphery of the stator, and each end of this can and each end of the stator frame a pair of end plates that are watertightly coupled across the stator; and an axial protrusion formed to include the abutting portion of the can and located within the slot opening of the stator, the protrusion extending within the slot opening. The length of the protrusion in the axial direction is smaller than the distance between the end face of the stator and the end face of the end plate opposing this end face. Features: Cand motor.
溶接されていることを特徴とする特許請求の範囲3項記
載のキヤンドモータ。(4) The canned motor according to claim 3, wherein the abutted portions are overlapped and the overlapped portions are seam welded.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17558984A JPS6152128A (en) | 1984-08-21 | 1984-08-21 | Canned motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17558984A JPS6152128A (en) | 1984-08-21 | 1984-08-21 | Canned motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6152128A true JPS6152128A (en) | 1986-03-14 |
Family
ID=15998720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17558984A Pending JPS6152128A (en) | 1984-08-21 | 1984-08-21 | Canned motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6152128A (en) |
-
1984
- 1984-08-21 JP JP17558984A patent/JPS6152128A/en active Pending
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