JPH0537647Y2 - - Google Patents
Info
- Publication number
- JPH0537647Y2 JPH0537647Y2 JP11241487U JP11241487U JPH0537647Y2 JP H0537647 Y2 JPH0537647 Y2 JP H0537647Y2 JP 11241487 U JP11241487 U JP 11241487U JP 11241487 U JP11241487 U JP 11241487U JP H0537647 Y2 JPH0537647 Y2 JP H0537647Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- side plate
- canned motor
- rotor side
- thin
- 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 - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 241000282465 Canis Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は回転子の鉄心及び二次導体をキヤンで
密封した構造のキヤンドモータの回転子に関する
ものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rotor for a canned motor having a structure in which the iron core and secondary conductor of the rotor are sealed with a can.
第２図は従来のキヤンドモータの回転子を示す
縦断面図である。図示するように、従来のキヤン
ドモータの回転子は、回転子側板１はロータキヤ
ン２により、剛性の大きい肉厚のものを機械加工
等で製作し、回転子側板１と主軸３とを溶接する
と共に回転子側板１の外周とロータキヤン２の両
端とを溶接してロータ室６を形成し、該ロータ室
６に鉄心４及び二次導体５を密封する構造であつ
た。これにより腐食性ガス或いは液体から鉄心４
及び二次導体５を保護している。
FIG. 2 is a longitudinal sectional view showing a rotor of a conventional canned motor. As shown in the figure, in the rotor of a conventional canned motor, the rotor side plate 1 is manufactured by machining a thick and rigid piece using a rotor cann 2, and the rotor side plate 1 and the main shaft 3 are welded and rotated. The outer periphery of the child side plate 1 and both ends of the rotor canine 2 were welded together to form a rotor chamber 6, and the iron core 4 and the secondary conductor 5 were sealed in the rotor chamber 6. This protects the core 4 from corrosive gases or liquids.
and protects the secondary conductor 5.
しかしながら上記従来構造のキヤンドモータの
回転子は、ロータ室６の残留空気又は不活性ガス
の熱膨張による圧力上昇やロータキヤン２の長手
方向（軸方向）の膨張による変形が剛性の最も小
さなロータキヤン２の長手方向の中央部に集中
し、ロータキヤン２の外径にふくれとして現れ、
ステータ（図示せず）との間のギヤツプの減少或
いはステータとの接触、拘束による焼損事故を引
き起こす欠点があつた。
However, in the rotor of the canned motor having the above-mentioned conventional structure, deformation due to pressure increase due to thermal expansion of residual air or inert gas in the rotor chamber 6 and expansion in the longitudinal direction (axial direction) of the rotor canal 2 occurs only in the longitudinal direction of the rotor canal 2, which has the least rigidity. Concentrates in the center of the direction and appears as a bulge on the outer diameter of the rotor canal 2,
This has the drawback of causing a burnout accident due to a reduction in the gap between the stator and the stator (not shown), contact with the stator, and binding.
本考案は上述の点に鑑みてなされたもので、上
記問題点を除去し、ロータキヤンの長手方向（軸
方向）の変形を吸収し、ロータキヤンの外径のふ
くれを防止するキヤンドモータの回転子を提供す
ることにある。 The present invention has been made in view of the above points, and provides a rotor for a canned motor that eliminates the above problems, absorbs deformation in the longitudinal direction (axial direction) of the rotor can, and prevents swelling of the outer diameter of the rotor can. It's about doing.
上記問題点を解決するための本考案は、回転子
の鉄心及び二次導体を薄肉円筒で包囲すると共に
該薄肉円筒の両端部を回転子側板に溶接した構造
のキヤンドモータの回転子において、回転子側板
を薄肉で且つ同心円状の波形を形成した構造とし
たことを特徴とする。
In order to solve the above problems, the present invention provides a rotor for a canned motor having a structure in which the iron core and secondary conductor of the rotor are surrounded by a thin-walled cylinder, and both ends of the thin-walled cylinder are welded to the rotor side plate. It is characterized by having a structure in which the side plates are thin and have concentric corrugations.
キヤンドモータの回転子を上記の如く構成する
ことにより、回転子側板を薄肉で且つ同心円状の
波形を形成した構造とするから、回転側板は軸方
向に変形し易く、ロータキヤンの長手方向の偏位
は回転子側板の長手方向の偏位により吸収し、ロ
ータキヤンの外径のふくれを防止するから、ステ
ータとのギヤツプの減少或いはステータとの接触
事故を引き起こすことはない。
By configuring the rotor of the canned motor as described above, the rotor side plate is thin and has a concentric corrugated structure, so the rotor side plate is easily deformed in the axial direction, and the longitudinal deviation of the rotor canal is reduced. Since the displacement in the longitudinal direction of the rotor side plate is absorbed and the bulge of the outer diameter of the rotor can is prevented, there is no reduction in the gap with the stator or accidental contact with the stator.
以下、本考案の一実施例を図面に基づいて説明
する。
Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図は、本考案に係るキヤンドモータの回転
子の構造を示す縦断面図であり、第２図は第１図
のＡ部分の拡大図である。第１図及び第２図にお
いて、第３図と同一符号を付した部分は同一又は
相当部分を示す。 FIG. 1 is a longitudinal sectional view showing the structure of a rotor of a canned motor according to the present invention, and FIG. 2 is an enlarged view of portion A in FIG. 1. In FIGS. 1 and 2, parts given the same reference numerals as in FIG. 3 indicate the same or equivalent parts.
図示するように、回転子側板７はロータキヤン
２と同様の薄肉で、且つ同心円状の波形７ａを形
成した形状である。即ち回転子側板７はロータキ
ヤン２と同じか略同等の材質で、且つ同じ板厚の
板材をプレスにて成形して製造する。該回転子側
板７の主軸３に溶接しすると共に、ロータキヤン
２の両端部を回転子側板７の外周部に溶接する。
これによりロータキヤン２と回転子側板７で囲ま
れたロータ室６が形成され、該ロータ室６内に鉄
心４及び二次導体５が密封されたことになる。キ
ヤンドモータの回転子を上記のような構造にする
ことにより、回転子側板７に同心円上の波形７ａ
をプレス成形で形成されると共に、その材質及び
板厚をロータキヤン２と同じ耐食性の材料とする
から、回転子側板７の主軸３方向の剛性はロータ
キヤン２の長手方向のそれより小さく、回転子側
板７は主軸３方向に容易に変形する。このためロ
ータ室６内の圧力上昇やロータキヤン２の熱膨張
に対しては、回転子側板７が主軸３方向に変形
し、ロータキヤン２の外周のふくれるのを防ぐこ
とになる。従つて固定子と回転子との接触、拘
束、モータ焼損等の事故を未然に防止することが
出来る。また、回転子側板７を薄くプレス成形品
としたため、軽量、コストダウン出来ると共に従
来の回転子側板１（第３図参照）のように厚肉の
ものでないから、ロータキヤン２の両端部との溶
接を容易にするための開先加工も不要になり、品
質管理が容易になるからこの点からもコストダウ
ンを図ることが可能となる。 As shown in the figure, the rotor side plate 7 has a thin wall similar to the rotor canine 2, and has a concentric waveform 7a. That is, the rotor side plate 7 is manufactured by pressing a plate material made of the same or substantially the same material as the rotor canine 2 and having the same thickness. It is welded to the main shaft 3 of the rotor side plate 7, and both ends of the rotor can 2 are welded to the outer circumference of the rotor side plate 7.
As a result, a rotor chamber 6 surrounded by the rotor cann 2 and the rotor side plate 7 is formed, and the iron core 4 and the secondary conductor 5 are sealed within the rotor chamber 6. By constructing the rotor of the canned motor as described above, a concentric waveform 7a is formed on the rotor side plate 7.
The rotor side plate 7 is formed by press molding and is made of the same corrosion-resistant material as the rotor canal 2, so the rigidity of the rotor side plate 7 in the main axis 3 direction is smaller than that in the longitudinal direction of the rotor canine 2. 7 is easily deformed in the direction of the main axis 3. Therefore, in response to an increase in pressure within the rotor chamber 6 or thermal expansion of the rotor canan 2, the rotor side plate 7 deforms in the direction of the main shaft 3, thereby preventing the outer periphery of the rotor can 2 from swelling. Therefore, accidents such as contact between the stator and rotor, binding, and motor burnout can be prevented. In addition, since the rotor side plate 7 is made of a thin press-formed product, it is lightweight and can reduce costs, and since it is not thick like the conventional rotor side plate 1 (see Fig. 3), it can be welded to both ends of the rotor cannon 2. This also eliminates the need for beveling to facilitate quality control, making it possible to reduce costs from this point of view as well.
以上説明したように本考案によれば、回転子側
板を薄肉で且つ同心円状の波形を形成した構成と
することにより、回転子側板は軸方向に変形し易
く、ロータキヤンの長手方向の偏位は回転子側板
の長手方向の偏位により吸収し、ロータキヤンの
外径のふくれを防止するから、ステータとのギヤ
ツプの減少、或いはステータとの接触、拘束等に
よる焼損事故を引き起こすことはない等の極めて
優れた効果が得られる。
As explained above, according to the present invention, by making the rotor side plate thin and having a concentric waveform, the rotor side plate is easily deformed in the axial direction, and the longitudinal deviation of the rotor canal is reduced. This is absorbed by the deviation in the longitudinal direction of the rotor side plate and prevents the outer diameter of the rotor cannula from bulging, reducing the gap with the stator or causing burnout accidents due to contact with the stator, binding, etc. Excellent effects can be obtained.
第１図は、本考案に係るキヤンドモータの回転
子の構造を示す縦断面図であり、第２図は第１図
のＡ部分の拡大図、第３図は従来のキヤンドモー
タの回転子の構造を示す縦断面図である。
図中、１……回転子側板、２……ロータキヤ
ン、３……主軸、４……鉄心、５……二次導体、
６……ロータ室、７……回転子側板、７ａ……波
形。
FIG. 1 is a vertical cross-sectional view showing the structure of the rotor of a canned motor according to the present invention, FIG. 2 is an enlarged view of part A in FIG. 1, and FIG. FIG. In the figure, 1... Rotor side plate, 2... Rota canine, 3... Main shaft, 4... Iron core, 5... Secondary conductor,
6... Rotor chamber, 7... Rotor side plate, 7a... Waveform.
Claims (1)
ると共に該薄肉円筒の両端部を回転子側板に溶接
した構造のキヤンドモータの回転子において、前
記回転子側板を薄肉で且つ同心円状の波形を少な
くとも一つ以上形成したことを特徴とするキヤン
ドモータの回転子。 In a rotor for a canned motor having a structure in which the iron core and secondary conductor of the rotor are surrounded by a thin cylinder and both ends of the thin cylinder are welded to a rotor side plate, the rotor side plate is thin and has at least a concentric waveform. A rotor for a canned motor, characterized in that one or more rotors are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11241487U JPH0537647Y2 (en) | 1987-07-22 | 1987-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11241487U JPH0537647Y2 (en) | 1987-07-22 | 1987-07-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6420056U JPS6420056U (en) | 1989-01-31 |
| JPH0537647Y2 true JPH0537647Y2 (en) | 1993-09-22 |
Family
ID=31351331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11241487U Expired - Lifetime JPH0537647Y2 (en) | 1987-07-22 | 1987-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0537647Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5917823B2 (en) * | 2011-04-20 | 2016-05-18 | 宏和商事株式会社 | Sealed rotor |
-
1987
- 1987-07-22 JP JP11241487U patent/JPH0537647Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6420056U (en) | 1989-01-31 |
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