JPH069563Y2 - Small electric motor - Google Patents
Small electric motorInfo
- Publication number
- JPH069563Y2 JPH069563Y2 JP1988141540U JP14154088U JPH069563Y2 JP H069563 Y2 JPH069563 Y2 JP H069563Y2 JP 1988141540 U JP1988141540 U JP 1988141540U JP 14154088 U JP14154088 U JP 14154088U JP H069563 Y2 JPH069563 Y2 JP H069563Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- ball bearing
- electric motor
- rotor
- small electric
- 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
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/063—Fixing them on the shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本考案は、家電機器をはじめ、産業用などに用いられる
玉軸受を使用した小型電動機に関するものである。TECHNICAL FIELD The present invention relates to a small electric motor using a ball bearing used for home appliances, industrial applications and the like.
従来の技術 従来より、玉軸受を使用した小型電動機は一般に長寿命
電動機として重要視され、数多く使用されている。2. Description of the Related Art Conventionally, small electric motors using ball bearings are generally regarded as important as long-life electric motors and are used in large numbers.
以下、図面を参照しながら前述した従来の玉軸受を使用
した小型電動機（以下電動機と称す）について説明す
る。Hereinafter, a small electric motor (hereinafter referred to as an electric motor) using the conventional ball bearing described above will be described with reference to the drawings.
第４図は従来の段付軸と玉軸受を使用した電動機の回転
子完成品の断面図である。FIG. 4 is a sectional view of a finished rotor of an electric motor using a conventional stepped shaft and a ball bearing.
第５図は従来のストレート軸と玉軸受を使用した電動機
の回転子完成品の断面図である。FIG. 5 is a sectional view of a finished rotor of an electric motor using a conventional straight shaft and a ball bearing.
第６図は第５図のストレート軸の止め輪挿入部の詳細図
である。FIG. 6 is a detailed view of the retaining ring insertion portion of the straight shaft of FIG.
第４図において、６は段付軸で、回転子２を固着してい
る。３は玉軸受で、段付軸６を支持している。この玉軸
受３は段付軸６の軸段部６ａで位置決めされている。In FIG. 4, 6 is a stepped shaft to which the rotor 2 is fixed. A ball bearing 3 supports a stepped shaft 6. The ball bearing 3 is positioned by the shaft step portion 6a of the stepped shaft 6.
また、第５図，第６図において、７はストレート軸で、
回転子２を固着している。３は玉軸受で、ストレート軸
７を支持している。この玉軸受３はストレート軸７の溝
部７ａに挿入された止め輪８により位置決めされてい
る。Also, in FIGS. 5 and 6, 7 is a straight shaft,
The rotor 2 is fixed. Reference numeral 3 denotes a ball bearing, which supports the straight shaft 7. The ball bearing 3 is positioned by a retaining ring 8 inserted in the groove 7a of the straight shaft 7.
考案が解決しようとする課題 しかし、第４図のような構成では、段付軸６に玉軸受３
の位置決め用の軸段部６ａを作る為、径の太い軸材料を
使用しなければならない。また、切削加工においても軸
段部６ａを設ける為加工時間が長時間必要となる。However, in the configuration as shown in FIG. 4, the stepped shaft 6 has the ball bearing 3
In order to form the shaft step portion 6a for positioning, it is necessary to use a shaft material having a large diameter. Further, even in the cutting process, the shaft step portion 6a is provided, so that the processing time is long.
さらに、研削も通し研削（センターレス研磨）が出来な
いなど、材料や加工費用が高くついていた。In addition, through grinding (centerless polishing) cannot be performed, and materials and processing costs are high.
また第５図のような構成では、ストレート軸の為、玉軸
受３の位置決めをするのに軸７に溝加工を施し、溝部７
ａに止め輪８を挿入しなければならなず、止め輪８の費
用や挿入費用が高くついていた。Further, in the structure shown in FIG. 5, since the shaft is a straight shaft, the shaft 7 is grooved to position the ball bearing 3, and the groove 7
Since the retaining ring 8 had to be inserted into a, the cost of the retaining ring 8 and the insertion cost were high.
前記のように、玉軸受の位置決めに段付軸やストレート
軸に止め輪を挿入したものでは大変コスト高になるとい
う問題点を有していた。As described above, there is a problem in that the cost is very high in the ball bearings in which the retaining ring is inserted into the stepped shaft or the straight shaft for positioning.
本考案は前記問題に鑑み、容易に安価な電動機を提供す
るものである。In view of the above problems, the present invention provides an inexpensive electric motor easily.
課題を解決するための手段 前記問題点を解決する為に本考案の電動機は、ストレー
ト軸に溝部を設け、その溝部の回転子側端面の円周上に
加圧による盛り上り部を付けるというものである。Means for Solving the Problems In order to solve the above-mentioned problems, the electric motor of the present invention has a straight shaft provided with a groove portion, and a raised portion due to pressure is provided on the circumference of the rotor-side end surface of the groove portion. Is.
作用 本考案は前記構成によって容易に玉軸受の位置決めをす
る事が出来る。The present invention makes it possible to easily position the ball bearing with the above-mentioned configuration.
実施例 以下本考案の一実施例の玉軸受を使用した電動機につい
て、図面を参照しながら説明する。Embodiment An electric motor using a ball bearing according to an embodiment of the present invention will be described below with reference to the drawings.
第１図〜第３図は本考案の実施例における軸を示すもの
であり、図において１は電動機の鉄心、２は回転子で、
全長にわたり同一径のストレートな軸４に固着されてい
る。３は玉軸受で、軸４を支持している。軸４にはリン
グ状の溝４ａを設けてあり、この溝の回転子側端面の円
周上に加圧による複数の盛り上り部４ｂを形成し、玉軸
受３の位置決めをしている。1 to 3 show a shaft in an embodiment of the present invention, in which 1 is an iron core of an electric motor, 2 is a rotor,
It is fixed to a straight shaft 4 having the same diameter over the entire length. A ball bearing 3 supports the shaft 4. The shaft 4 is provided with a ring-shaped groove 4a, and a plurality of raised portions 4b due to pressure are formed on the circumference of the rotor-side end surface of the groove to position the ball bearing 3.
なお、前記リング状の溝４ａは加圧による盛り上り部４
ｂを容易に形成させると共に玉軸受３の位置決め精度を
高める為に設けたものである。It should be noted that the ring-shaped groove 4a is formed on the raised portion 4 by pressure.
It is provided in order to easily form b and to improve the positioning accuracy of the ball bearing 3.
また、複数の盛り上り部４ｂはプレス加工等で一発成形
を行う為非常に簡単な加工で精度よく玉軸受３の位置決
めが出来る。Further, since the plurality of raised portions 4b are formed in one shot by pressing or the like, the ball bearing 3 can be positioned with high precision by very simple processing.
以上のように本実施例によれば、ストレート軸にリング
状の溝４ａを設け、この溝４ａの円周上に加圧による複
数の盛り上り部４ｂを形成する事により精度よく玉軸受
３の位置決めをする事が出来る。As described above, according to the present embodiment, the straight shaft is provided with the ring-shaped groove 4a, and the plurality of raised portions 4b by pressurization are formed on the circumference of the groove 4a, whereby the ball bearing 3 can be accurately manufactured. Can be positioned.
考案の効果 以上のように本考案は、コストの高い段付軸や、止め輪
などの部品を使用しなくても軸にリング溝を設け、この
溝の回転子側端面の円周上に加圧による複数の盛り上り
部を形成して玉軸受の位置決めとする事により、容易に
安価な電動機を提供する事が出来る。Effect of the Invention As described above, the present invention provides a ring groove on the shaft without using costly stepped shafts or retaining rings and other parts, and adds the ring groove on the circumference of the rotor side end surface. By forming a plurality of raised portions by pressure to position the ball bearing, it is possible to easily provide an inexpensive electric motor.
第１図は本考案の一実施例における玉軸受を使用した電
動機の断面図、第２図は第１図の玉軸受の位置決め部の
部分拡大図、第３図は第２図の軸部分のＡ−Ａ矢視図、
第４図は従来の玉軸受と段付軸を使用した電動機の回転
子完成品の断面図、第５図は従来の玉軸受とストレート
軸を使用した電動機の回転子完成品の断面図、第６図は
第５図の軸の止め輪挿入用のリング状溝の拡大図であ
る。 ２……回転子、３……玉軸受、４……軸、４ａ……溝、
４ｂ……盛り上り部。1 is a sectional view of an electric motor using a ball bearing according to an embodiment of the present invention, FIG. 2 is a partially enlarged view of a positioning portion of the ball bearing of FIG. 1, and FIG. 3 is a shaft portion of FIG. A-A arrow view,
FIG. 4 is a sectional view of a finished rotor of an electric motor using a conventional ball bearing and a stepped shaft, and FIG. 5 is a sectional view of a finished rotor of an electric motor using a conventional ball bearing and a straight shaft. FIG. 6 is an enlarged view of the ring-shaped groove for inserting the retaining ring of the shaft of FIG. 2 ... Rotor, 3 ... Ball bearing, 4 ... Shaft, 4a ... Groove,
4b ... Heating part.
Claims (1)
玉軸受とを備え、前記軸にリング状の溝を設け、この溝
の回転子側端面の円周上に加圧による複数の盛り上り部
を形成し、この盛り上り部を玉軸受の位置決めとした小
型電動機。1. A shaft, to which a rotor is fixed, and a ball bearing, which supports the shaft, are provided, and a ring-shaped groove is provided in the shaft. A small electric motor in which the raised portion is formed and the raised portion is used to position the ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988141540U JPH069563Y2 (en) | 1988-10-28 | 1988-10-28 | Small electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988141540U JPH069563Y2 (en) | 1988-10-28 | 1988-10-28 | Small electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0265067U JPH0265067U (en) | 1990-05-16 |
| JPH069563Y2 true JPH069563Y2 (en) | 1994-03-09 |
Family
ID=31406694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988141540U Expired - Lifetime JPH069563Y2 (en) | 1988-10-28 | 1988-10-28 | Small electric motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069563Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8436501B2 (en) | 2010-05-21 | 2013-05-07 | Asmo Co., Ltd. | Rotor, manufacturing method thereof and electric gear motor having the rotor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5204820B2 (en) * | 2010-09-02 | 2013-06-05 | 三菱電機株式会社 | Rotor shaft and vehicle alternator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5152904U (en) * | 1974-10-22 | 1976-04-22 | ||
| JPS5345336U (en) * | 1976-09-22 | 1978-04-18 | ||
| JPS53111305U (en) * | 1977-02-15 | 1978-09-05 | ||
| JPS62127514A (en) * | 1985-11-29 | 1987-06-09 | Jidosha Denki Kogyo Co Ltd | Clamping structure between shaft and bearing and clamping method |
-
1988
- 1988-10-28 JP JP1988141540U patent/JPH069563Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8436501B2 (en) | 2010-05-21 | 2013-05-07 | Asmo Co., Ltd. | Rotor, manufacturing method thereof and electric gear motor having the rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0265067U (en) | 1990-05-16 |
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