JPH0615489Y2 - Motor bearing structure - Google Patents
Motor bearing structureInfo
- Publication number
- JPH0615489Y2 JPH0615489Y2 JP1988006863U JP686388U JPH0615489Y2 JP H0615489 Y2 JPH0615489 Y2 JP H0615489Y2 JP 1988006863 U JP1988006863 U JP 1988006863U JP 686388 U JP686388 U JP 686388U JP H0615489 Y2 JPH0615489 Y2 JP H0615489Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- yoke
- rotor
- end surface
- motor
- 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
Landscapes
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案はモーターの軸受構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a bearing structure for a motor.
（従来の技術） 従来、モーターの軸受構造には第３図、第４図に示すも
のが知られている。このものでは、モーター１のヨーク
２は環状に形成され、このヨーク２の内側にロータ３が
配設されるようになっている。ヨーク２の端面２ａ，２
ｂには取付板４ａ，４ｂが接着され、取付板４ａ，４ｂ
には軸受５ａ，５ｂを取付ける取付孔４ｃ，４ｄが開口
されている。取付孔４ｃの径はヨーク２の内径より大き
く設定され、この取付孔４ｃに軸受５ａが嵌合されてい
る。取付孔４ｄはヨーク２の内径より小さく設定され、
軸受５ｂは取付孔４ｄに嵌合されている。軸受５ａ，５
ｂにはロータ３の回転軸３ａが軸支されている。(Prior Art) Conventionally, a bearing structure of a motor shown in FIGS. 3 and 4 is known. In this structure, the yoke 2 of the motor 1 is formed in an annular shape, and the rotor 3 is arranged inside the yoke 2. End surfaces 2a, 2 of the yoke 2
The mounting plates 4a and 4b are adhered to b, and the mounting plates 4a and 4b are attached.
Mounting holes 4c and 4d for mounting the bearings 5a and 5b are opened in the. The diameter of the mounting hole 4c is set to be larger than the inner diameter of the yoke 2, and the bearing 5a is fitted in the mounting hole 4c. The mounting hole 4d is set smaller than the inner diameter of the yoke 2,
The bearing 5b is fitted in the mounting hole 4d. Bearing 5a, 5
A rotation shaft 3a of the rotor 3 is pivotally supported on b.
（考案が解決しようとする課題） しかしながら、このようなモーターの軸受構造の場合、
取付板４ａとヨーク２の端面２ａとを接着すると、取付
板４ａとヨーク２の端面２ａとの間の接着剤６が取付孔
４ｃの開口部側にはみ出ることがある（第４図参照）。
この状態のまま軸受５ａをヨーク２の端面２ａに密着さ
せると、軸受５ａが傾斜してロータ３の回転軸３ａが正
規の延在方向ｌに対して傾斜し、ロータ３に回転ムラが
発生するという問題があった。(Problems to be solved by the invention) However, in the case of such a motor bearing structure,
When the mounting plate 4a and the end surface 2a of the yoke 2 are adhered, the adhesive 6 between the mounting plate 4a and the end surface 2a of the yoke 2 may protrude to the opening side of the mounting hole 4c (see FIG. 4).
If the bearing 5a is brought into close contact with the end surface 2a of the yoke 2 in this state, the bearing 5a is tilted and the rotary shaft 3a of the rotor 3 is tilted with respect to the normal extending direction 1 to cause uneven rotation of the rotor 3. There was a problem.
（考案の目的） 本考案は、上記問題点に着目してなされたものであり、
ロータの回転ムラが生じないモーターの軸受構造を提供
することを目的としている。(Purpose of Invention) The present invention has been made by focusing on the above problems.
It is an object of the present invention to provide a bearing structure for a motor that does not cause uneven rotation of the rotor.
（課題を解決するための手段） 上記目的を達成するために、本考案にかかるモーターの
軸受構造は、ロータ内蔵空間にロータを内蔵する環状の
ヨークの端面に、このヨークの内径よりも大径の取付孔
を有する取付板を接着し、この取付板の取付孔に前記ロ
ータの回転軸を軸支する軸受を嵌合してなるモーターの
軸受構造において、 前記軸受を前記ヨークの端面から離間させ、軸受とヨー
クの端面の間に、前記ヨークの端面と取付板との接着時
にはみ出る接着剤を回避する空間を形成し、この空間を
前記ロータ内蔵空間に連通させたことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, a bearing structure for a motor according to the present invention has a structure in which an end surface of an annular yoke that houses a rotor in a rotor built-in space has a diameter larger than the inner diameter of the yoke. In a bearing structure of a motor, in which a mounting plate having a mounting hole is attached, and a bearing supporting the rotation shaft of the rotor is fitted in the mounting hole of the mounting plate, the bearing is separated from the end surface of the yoke. A space is formed between the bearing and the end surface of the yoke for avoiding an adhesive that sticks out when the end surface of the yoke and the mounting plate are bonded, and this space is communicated with the rotor built-in space.
（作用） 本考案のモーターの軸受構造によれば、軸受とヨークの
端面との間の空間が密封されず、はみ出した接着剤が軸
受に接しても、確実に接着剤を逃すことが出来るので、
軸受の傾斜を確実に防止できることとなり、ロータの回
転ムラの発生が防止される。(Operation) According to the bearing structure of the motor of the present invention, the space between the bearing and the end surface of the yoke is not sealed, and even if the protruding adhesive comes into contact with the bearing, the adhesive can be reliably released. ,
The inclination of the bearing can be reliably prevented and uneven rotation of the rotor can be prevented.
（実施例） 以下、本考案の実施例にかかるモーターの軸受構造の実
施例を図面を参照にしつつ説明する。(Embodiment) An embodiment of a motor bearing structure according to an embodiment of the present invention will be described below with reference to the drawings.
第１図は本考案の実施例にかかるモーターの軸受構造を
示したものであり、モーター１０の環状のヨーク１１に
はロータ１２が内蔵されている。ヨーク１１の端面11a,
11bには取付板１３ａ，１３ｂが接着されており、取付
板１３ａにはヨーク１１の内径より大径の取付孔１４ａ
が開口されている。取付板１３ｂにはヨーク１１の内径
より小径の取付孔１４ｂが開口されている。取付孔１４
ａにはロータ１２の回転軸１２ａの出力側の端部を軸支
する軸受１５ａが嵌合されている。軸受１５ａとヨーク
１１の端面１１ａとの間には、取付板１３ａとヨーク１
１の端面１１ａと間からはみ出る接着剤を回避する空間
１６が設けられている。取付孔１４ｂには回転軸１２ａ
の他端部を軸支する軸受１５ｂが嵌合されている。尚、
第２図に示すように、この軸受１５ａの回転軸１２ａを
保持する部位を回転軸１２ａの出力側に大きく突出させ
て、回転軸１２ａの保持間隔を大きく設定しても良く、
このように構成すると、ロータ１２の偏心を防止すると
共に、モーター１０の取付時の位置決めを容易に行える
こととなる。FIG. 1 shows a bearing structure of a motor according to an embodiment of the present invention. A rotor 12 is built in an annular yoke 11 of the motor 10. End surface 11a of the yoke 11,
Mounting plates 13a and 13b are bonded to 11b, and a mounting hole 14a having a diameter larger than the inner diameter of the yoke 11 is mounted on the mounting plate 13a.
Is opened. A mounting hole 14b having a diameter smaller than the inner diameter of the yoke 11 is opened in the mounting plate 13b. Mounting hole 14
A bearing 15a that axially supports the output side end of the rotary shaft 12a of the rotor 12 is fitted to a. The mounting plate 13a and the yoke 1 are provided between the bearing 15a and the end surface 11a of the yoke 11.
There is provided a space 16 for avoiding the adhesive protruding from between the end surface 11a of No. 1 and the end surface 11a. The rotating shaft 12a is installed in the mounting hole 14b.
A bearing 15b for pivotally supporting the other end of the is fitted. still,
As shown in FIG. 2, a portion of the bearing 15a that holds the rotating shaft 12a may be largely projected to the output side of the rotating shaft 12a, and the holding interval of the rotating shaft 12a may be set to be large.
With this structure, the eccentricity of the rotor 12 can be prevented and the positioning of the motor 10 at the time of mounting can be easily performed.
本実施例にかかるモーターの軸受構造によれば、軸受１
５ａとヨーク１１の端面１１ａとの間に接着剤を回避す
る空間１６が設けられているので、軸受１５ａが接着剤
に当接して傾斜することが防止され、回転軸１２ａが正
規の状態で軸支されることとなり、ロータ１２が回転ム
ラを起し難くなる。According to the bearing structure of the motor according to the present embodiment, the bearing 1
Since the space 16 for avoiding the adhesive is provided between the shaft 5a and the end surface 11a of the yoke 11, the bearing 15a is prevented from coming into contact with the adhesive and tilting, and the rotary shaft 12a is kept in a normal state. Since it is supported, the rotor 12 is less likely to cause uneven rotation.
（考案の効果） 本考案にかかるモーターの軸受構造は、以上説明したよ
うに、軸受とヨークの端面との間の空間が密封されず、
はみ出した接着剤が軸受に接しても、確実に接着剤を逃
すことが出来るので、軸受の傾斜を確実に防止できるこ
ととなり、ロータの回転ムラが防止されるという効果を
奏する。(Effect of the Invention) As described above, in the bearing structure of the motor according to the present invention, the space between the bearing and the end surface of the yoke is not sealed,
Even if the protruding adhesive comes into contact with the bearing, the adhesive can be reliably released, so that the inclination of the bearing can be surely prevented, and uneven rotation of the rotor can be prevented.
第１図は本考案の実施例にかかるモーターの軸受構造の
断面構成図、第２図は第１図にかかる軸受の変形例を示
す部分拡大図、第３図は従来のモーターの軸受構造の断
面構成図、第４図は従来のモーターの軸受構造であって
ヨークと取付板との間から接着剤がはみ出て軸受が傾斜
している状態の部分拡大図である。 １０…モーター １１…ヨーク １２…ロータ １３ａ…取付板 １４ａ…取付孔 １５ａ…軸受 １６…空間FIG. 1 is a sectional structural view of a bearing structure for a motor according to an embodiment of the present invention, FIG. 2 is a partially enlarged view showing a modification of the bearing according to FIG. 1, and FIG. 3 is a conventional bearing structure for a motor. FIG. 4 is a cross-sectional configuration diagram showing a conventional motor bearing structure in which a part of the bearing is tilted by the adhesive protruding from between the yoke and the mounting plate. 10 ... Motor 11 ... Yoke 12 ... Rotor 13a ... Mounting plate 14a ... Mounting hole 15a ... Bearing 16 ... Space
Claims (1)
ヨークの端面に、このヨークの内径よりも大径の取付孔
を有する取付板を接着し、この取付板の取付孔に前記ロ
ータの回転軸を軸支する軸受を嵌合してなるモーターの
軸受構造において、 前記軸受を前記ヨークの端面から離間させ、軸受とヨー
クの端面の間に、前記ヨークの端面と取付板との接着時
にはみ出る接着剤を回避する空間を形成し、この空間を
前記ロータ内蔵空間に連通させたことを特徴とするモー
ターの軸受構造。1. A mounting plate having a mounting hole having a diameter larger than the inner diameter of the yoke is adhered to an end surface of an annular yoke for housing the rotor in the rotor built-in space, and the rotor is rotated in the mounting hole of the mounting plate. In a bearing structure of a motor in which a bearing supporting a shaft is fitted, the bearing is separated from an end surface of the yoke, and protrudes between the bearing and the end surface of the yoke when the end surface of the yoke and the mounting plate are bonded. A bearing structure for a motor, characterized in that a space for avoiding an adhesive is formed, and this space is communicated with the rotor built-in space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988006863U JPH0615489Y2 (en) | 1988-01-22 | 1988-01-22 | Motor bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988006863U JPH0615489Y2 (en) | 1988-01-22 | 1988-01-22 | Motor bearing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01113552U JPH01113552U (en) | 1989-07-31 |
| JPH0615489Y2 true JPH0615489Y2 (en) | 1994-04-20 |
Family
ID=31211388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988006863U Expired - Lifetime JPH0615489Y2 (en) | 1988-01-22 | 1988-01-22 | Motor bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615489Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080079242A (en) * | 2005-12-22 | 2008-08-29 | 엔티엔 가부시키가이샤 | Fluid bearing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61116944A (en) * | 1984-11-08 | 1986-06-04 | Matsushita Electric Ind Co Ltd | Stepping motor |
| JPH0667149B2 (en) * | 1986-05-29 | 1994-08-24 | 松下電器産業株式会社 | Stepping motor assembly method |
-
1988
- 1988-01-22 JP JP1988006863U patent/JPH0615489Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01113552U (en) | 1989-07-31 |
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