JPS6059938A - Shaft of motor - Google Patents
Shaft of motorInfo
- Publication number
- JPS6059938A JPS6059938A JP16630783A JP16630783A JPS6059938A JP S6059938 A JPS6059938 A JP S6059938A JP 16630783 A JP16630783 A JP 16630783A JP 16630783 A JP16630783 A JP 16630783A JP S6059938 A JPS6059938 A JP S6059938A
- Authority
- JP
- Japan
- Prior art keywords
- collar
- shaft
- motor
- fitted
- diameter
- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Dc Machiner (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はモータの回転軸挑位置決めに関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to positioning of a rotating shaft of a motor.
モータの回転軸には電磁石や整流子が取付けられてロー
タを形成し、筐体には磁石や刷子が取付けられステータ
を形成する。ロータ側の電磁石とステータ側の磁石、及
び整流子と刷子は常に向い合う位置になければならない
、ロータとステータの軸方向の相対位置の精度が悪いと
うまく回転しない。回転しない程でなくても、軸にベル
トプーリなどを付けた場合、プーリが移動してしまいベ
ルトがはずれるなどの不都合が起る。An electromagnet and a commutator are attached to the rotating shaft of the motor to form a rotor, and magnets and brushes are attached to the casing to form a stator. The electromagnets on the rotor side and the magnets on the stator side, as well as the commutator and brushes, must always be in opposing positions.If the relative positions of the rotor and stator in the axial direction are inaccurate, they will not rotate properly. Even if it is not enough to prevent it from rotating, if a belt pulley is attached to the shaft, the pulley will move and the belt will come off, causing problems.
ところが、例えば第１図に示す鉄芯の電磁石を用いたモ
ータでは、ロータとステータの相対位置を精度良くする
ことは困難である。モータの回転軸ｌは、調心軸受け２
で一端を、軸受け８で中央部を゛、夫々筐体２１と２０
とに支持される。各軸受け２と８の間で、軸１には整流
子３・スペーサ４・鉄８５及び抜は止め環１０を嵌め込
み固定させである。整流子３には刷子１１が接触する。However, in a motor using an iron-core electromagnet as shown in FIG. 1, for example, it is difficult to accurately adjust the relative positions of the rotor and stator. The rotating shaft l of the motor is aligned with the alignment bearing 2
and the center part with the bearing 8, and the housings 21 and 20, respectively.
It is supported by Between each bearing 2 and 8, a commutator 3, a spacer 4, an iron 85, and a retaining ring 10 are fitted and fixed to the shaft 1. A brush 11 is in contact with the commutator 3 .
スペーサ４は整流子３と鉄芯５の位置間隔を保ちつつ、
その内側にリード線が通じている。鉄芯５はステータ磁
石１３と対向する位置にあり、ヨイ、。The spacer 4 maintains the positional distance between the commutator 3 and the iron core 5,
A lead wire runs inside it. The iron core 5 is located at a position facing the stator magnet 13.
１２が巻かれており、コイル１２は前記リード線を通っ
て整流子３と導通している。環ｌｏは、軸１が軸受け８
方向へ抜けて、整流子３と刷子ｌｌ、鉄芯５と磁石１３
の夫々の相対位置が狂ってしまうことを防止している。12 is wound, and the coil 12 is electrically connected to the commutator 3 through the lead wire. In ring LO, shaft 1 is bearing 8
Commutator 3, brush ll, iron core 5 and magnet 13
This prevents the relative positions of each from going out of order.
通常、鉄芯５は板片を積み重ねた構造である。そのため
１枚毎の板片の寸法の狂いが累積され、鉄芯全体の厚さ
はかなりばらつくことになる。従って、奥側（軸受け２
側）の軸端か、ら鉄芯５の前面までの寸法ａが各品によ
って異なってしまう。単純に鉄芯５に接する位置に環ｌ
Ｏを固定すると、軸端から環ｌＯ前面までの寸法すも各
様になる。環１０と軸受け８の間に必要具りの隙間がお
いて、軸ｌが抜けてきて前述した弊害が起ることになる
。Usually, the iron core 5 has a structure in which plate pieces are piled up. Therefore, the dimensional deviations of each plate piece are accumulated, and the thickness of the entire iron core varies considerably. Therefore, the rear side (bearing 2
The dimension a from the shaft end of the iron core 5 to the front surface of the iron core 5 differs depending on the product. Simply place a ring l at a position touching the iron core 5.
If O is fixed, the dimension from the shaft end to the front surface of ring lO will vary. If a necessary amount of clearance is left between the ring 10 and the bearing 8, the shaft l will come off and the above-mentioned problem will occur.
これを防ぐために、従来は第２図に示すように鉄芯５と
環１０の間に、薄板のワッシャ１３の積重ね枚数を寸法
ａに応じて調整して入れ、環ｌＯを固定して寸法すが一
定になるようにしている。In order to prevent this, conventionally, as shown in FIG. is kept constant.
または第３図に示すように、寸法ａには無関係に環１０
を寸法すに合わせ、軸１と接着させたりしいている。Or, as shown in FIG. 3, the ring 10 is
are adjusted to the dimensions and glued to the shaft 1.
しかし、これらの従来のものはワッシャの調整や、寸法
を合わせて接！する手間がかかったり、接着剤がしみ出
して軸に被膜ができ軸受けにうまく入らなくなったりす
る欠点がある。However, with these conventional ones, you have to adjust the washers and match the dimensions to connect them! There are disadvantages that it takes time and effort to do so, and that the adhesive oozes out and forms a film on the shaft, making it difficult to fit into the bearing.
本発明は上記のような従来のものの欠点を除去し、軸方
向の位置精度の良いモータを安価につくることのできる
モータ軸を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a motor shaft that eliminates the above-mentioned drawbacks of the conventional motor and allows a motor with good axial positional accuracy to be manufactured at low cost.
この目的を達成するため本発明は、筐体２０に軸支され
る回転軸ｌを持ったモータに於て、回転軸ｌに締りばめ
したカラー１５と、筐体２０に取付けれた軸受け８とで
、軸方向の位置の移動を規制することを特徴とするモー
タの回転軸である。In order to achieve this object, the present invention provides a motor having a rotating shaft l supported by a housing 20, which includes a collar 15 tightly fitted to the rotating shaft l, and a bearing 8 attached to the housing 20. The rotating shaft of the motor is characterized in that the movement of the position in the axial direction is restricted by the following.
以下本発明の実施例を詳細に説明する。第１図に示す環
１０の位置に締りばめしたカラー１５（第５図参照）が
位置する。カラー１５は比較的硬質な例えばウレタン樹
脂等で形成されている。Examples of the present invention will be described in detail below. In the position of the ring 10 shown in FIG. 1 is located a collar 15 (see FIG. 5) which is tightly fitted. The collar 15 is made of relatively hard material such as urethane resin.
第４図に示すように、カラー１５の外径は細い部分１７
と太い部分１８からなる。細い部分１７には、複数のす
り割１９が途中まで入れである。そしてカラー１５の内
径はモータの回転軸１の径より極めてわずか細くなって
おり、嵌入させると締り代を持つことになる。カラー１
５の長さは寸法すからａを差引いたものより常に長めに
なるようにしである。このカラー１５を、整流子・スペ
ーサ４参鉄芯５が嵌められている軸１に圧入する。As shown in FIG. 4, the outer diameter of the collar 15 is the narrow part 17.
and a thick part 18. A plurality of slots 19 are inserted halfway into the thin portion 17. The inner diameter of the collar 15 is extremely slightly smaller than the diameter of the rotating shaft 1 of the motor, and there is an interference margin when the collar 15 is fitted. Color 1
The length of 5 is always longer than the dimension minus a. This collar 15 is press-fitted onto the shaft 1 on which the commutator/spacer 4 and the iron core 5 are fitted.
カラー１５は軸ｌによってわずかに押し広げられながら
嵌入する。カラー１５の先端が鉄芯５に当りさらにカラ
ー１５が押し込まれると、第５図に示すように、カラー
１５の細径部１７はすり割り１９があるために屈曲する
６寸法すの定位置にくるまでカラー１５を押し込むこと
ができる。圧入量は基準寸法すに合わせた、ストッパ冶
具（不図示）で規制すれば適格に調整できる。The collar 15 is inserted while being slightly pushed apart by the shaft l. When the tip of the collar 15 hits the iron core 5 and the collar 15 is pushed further, as shown in FIG. The collar 15 can be pushed in until it comes in. The amount of press-in can be appropriately adjusted by regulating it with a stopper jig (not shown) that matches the standard dimensions.
カラーは第４・５図に示すような形状以外に、径の段差
もすり割りがないもの、径の段差を付けすり割りがない
もの、径の段差がなくてすり割りを付けたものであって
も実施できる。ただ、すり割りがない場合は、圧入のと
きに戻り（ブツシュ・、バック）が生ずるため１寸法す
に戻り分をみて圧入量を決める必要がある。径の段差が
あるものの方が圧入のときに加圧スペースが充分とれる
のでやりやｔい。In addition to the shapes shown in Figures 4 and 5, there are collars with diameter steps without slots, diameter steps with no slots, and collars without diameter steps with slots. It can also be implemented. However, if there is no slot, backing will occur during press-fitting, so it is necessary to determine the amount of press-fitting by looking at the backing for each dimension. It is easier to use one with a step in the diameter because there is enough pressurizing space during press-fitting.
またカラーの材質は硬質の樹脂以外に、展性のある金属
例えばアルミニウムｅ銅なども使用可部である。In addition to hard resin, malleable metals such as aluminum and copper can also be used as the material for the collar.
以上説明したように１本発明のモータ軸では、軸に取付
けた位置決め輪の位置が正確であるためロータとステー
タの相対位置が正確で回転が安定する。軸がスライドし
て取付けられているプーリからベルトが外れたりするこ
ともない。また、従５来の位置決め輪の取付けのように
、ワッシャ枚数を調整したり、固定位置を測定して接着
したり、という手間が大巾に軽減されるため安価に製作
できることになる。As explained above, in the motor shaft of the present invention, since the positioning ring attached to the shaft is accurately positioned, the relative position between the rotor and the stator is accurate and rotation is stable. The shaft will not slide and the belt will not come off the attached pulley. In addition, since the labor of adjusting the number of washers and measuring and gluing the fixing positions, which is required for attaching conventional positioning rings, is greatly reduced, it can be manufactured at low cost.
第１図はモータの内部を示す断面図、第２図・第３図は
従来のモータ軸の部分拡大図、第４図は本発明を適用し
たモータ軸に使用されるカラーの斜視図、第５図は本発
明を適用したモータ軸の部分拡大図である。
１はモータ軸、８は軸受け、１５はカラー、２０は筐体
である。
特許出願人 キャノン株式会社Figure 1 is a sectional view showing the inside of the motor, Figures 2 and 3 are partially enlarged views of a conventional motor shaft, Figure 4 is a perspective view of a collar used in the motor shaft to which the present invention is applied, and Figure 4 is a perspective view of a collar used in the motor shaft to which the present invention is applied. FIG. 5 is a partially enlarged view of a motor shaft to which the present invention is applied. 1 is a motor shaft, 8 is a bearing, 15 is a collar, and 20 is a housing. Patent applicant Canon Co., Ltd.
Claims (1)
回転軸に締りばめしたカラーと、筐体に取付けれた軸受
けとで、軸方向の位置の移動を規制することを特徴とす
るモータの回転軸。(1) In a motor with a rotating shaft supported by a housing,
A rotating shaft of a motor, characterized in that movement in the axial direction is restricted by a collar tightly fitted to the rotating shaft and a bearing attached to a housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16630783A JPS6059938A (en) | 1983-09-09 | 1983-09-09 | Shaft of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16630783A JPS6059938A (en) | 1983-09-09 | 1983-09-09 | Shaft of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6059938A true JPS6059938A (en) | 1985-04-06 |
Family
ID=15828909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16630783A Pending JPS6059938A (en) | 1983-09-09 | 1983-09-09 | Shaft of motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6059938A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02118444U (en) * | 1988-12-02 | 1990-09-21 | ||
| JP2013078185A (en) * | 2011-09-30 | 2013-04-25 | Nidec Sankyo Corp | Motor and method of manufacturing motor |
| WO2017163333A1 (en) * | 2016-03-23 | 2017-09-28 | 三菱電機株式会社 | Direct-current motor and actuator |
-
1983
- 1983-09-09 JP JP16630783A patent/JPS6059938A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02118444U (en) * | 1988-12-02 | 1990-09-21 | ||
| JP2013078185A (en) * | 2011-09-30 | 2013-04-25 | Nidec Sankyo Corp | Motor and method of manufacturing motor |
| WO2017163333A1 (en) * | 2016-03-23 | 2017-09-28 | 三菱電機株式会社 | Direct-current motor and actuator |
| JP6328363B2 (en) * | 2016-03-23 | 2018-05-23 | 三菱電機株式会社 | DC motors and actuators |
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