JPH069359U - Small electric motor - Google Patents
Small electric motorInfo
- Publication number
- JPH069359U JPH069359U JP047345U JP4734592U JPH069359U JP H069359 U JPH069359 U JP H069359U JP 047345 U JP047345 U JP 047345U JP 4734592 U JP4734592 U JP 4734592U JP H069359 U JPH069359 U JP H069359U
- Authority
- JP
- Japan
- Prior art keywords
- ball bearing
- electric motor
- straight shaft
- small electric
- shaft
- 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
-
- 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
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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)
Abstract
(57)【要約】
【目的】 玉軸受を使用した小型電動機において、玉軸
受の位置決めを容易に安価にする。
【構成】 ストレート軸４にリング状の溝部４aを有
し、その溝部に断面が丸形でＣ状の止め輪５を挿入した
もので、非常に安価で、かつ容易に玉軸受３の位置決め
を行うことができる。
(57) [Abstract] [Purpose] In a small electric motor that uses ball bearings, it is easy and inexpensive to position the ball bearings. [Structure] A straight shaft 4 has a ring-shaped groove portion 4a, and a C-shaped snap ring 5 having a round cross section is inserted into the groove portion. This makes it very inexpensive and easy to position the ball bearing 3. It can be carried out.
Description
【０００１】[0001]
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。 The present invention relates to a small electric motor using a ball bearing used for industrial purposes such as home appliances.
【０００２】[0002]
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。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。 Conventionally, small electric motors that use ball bearings are generally regarded as important as long-life electric motors and are used in large numbers. 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.
【０００３】 図５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側面半断面図 であり、図６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 側面半断面図である。FIG. 5 is a side half-sectional view of a finished rotor of an electric motor using a conventional stepped shaft and a ball bearing, and FIG. 6 is a finished rotor of an electric motor using a conventional straight shaft and a ball bearing. FIG. 3 is a side half-sectional view of FIG.
【０００４】 図５において、７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７を支持している。この玉軸受３は軸段部７aで位置決めされている。In FIG. 5, 7 is a stepped shaft to which the rotor 2 is fixed. A ball bearing 3 supports the stepped shaft 7. The ball bearing 3 is positioned by the shaft step portion 7a.
【０００５】 また、図６において、８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８を支持している。この玉軸受３はストレート軸８の溝部 ８aに挿入された止め輪９により位置決めされている。Further, in FIG. 6, 8 is a straight shaft to which the rotor 2 is fixed. 3 is a ball bearing, which supports the straight shaft 8. The ball bearing 3 is positioned by a retaining ring 9 inserted in the groove 8a of the straight shaft 8.
【０００６】[0006]
しかし、図５のような構成では、段付軸７に玉軸受３の位置決め用の軸段部 ７aを作るため、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７aを設けるための加工時間が長時間必要となる。 However, in the structure as shown in FIG. 5, in order to form the shaft step portion 7a for positioning the ball bearing 3 on the stepped shaft 7, it is necessary to use a shaft material having a large diameter. Further, even in the cutting process, a long processing time is required to provide the shaft step portion 7a.
【０００７】 更に研削も通し研削(センタレス研磨)ができないなど、材料や加工費用が高く ついていた。Further, through-grinding (centerless polishing) cannot be performed, and materials and processing costs are high.
【０００８】 また、図６のような構成では、ストレート軸のため、玉軸受３の位置決めをす るのにＳＫ材(炭素工具鋼)で作られたＣ型やＥ型の高価な止め輪９が使用されて いた。Further, in the configuration as shown in FIG. 6, since it is a straight shaft, a C type or E type expensive retaining ring 9 made of SK material (carbon tool steel) is used for positioning the ball bearing 3. Was being used.
【０００９】 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ＳＫ材を使用した 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, the stepped shaft or the straight shaft in which the retaining ring made of SK material is inserted for positioning the ball bearing has a problem that the cost becomes very high.
【００１０】 本考案は前記問題に鑑み、容易に安価な玉軸受を使用した電動機を提供するこ とを目的とするものである。In view of the above problems, it is an object of the present invention to provide an electric motor that uses an inexpensive ball bearing easily.
【００１１】[0011]
本考案は、回転子を固着したストレート軸に溝部を有し、その溝部に一般鋼材 などで作られた断面が丸形でＣ状の止め輪を挿入することにより、前記ストレー ト軸を支持する玉軸受の位置決めとした構造とする。 According to the present invention, a straight shaft having a rotor fixed thereto has a groove portion, and a C-shaped snap ring having a round cross section made of a general steel material is inserted into the groove portion to support the straight shaft. The ball bearings will be positioned.
【００１２】[0012]
本考案によれば、回転子をストレート軸に固着するので容易に安価な加工がで き、かつストレート軸に溝部を有し、これに安価な止め輪を挿入することができ 、玉軸受の位置決めをすることができる。 According to the present invention, since the rotor is fixed to the straight shaft, it can be easily processed at low cost, and the straight shaft has a groove portion, in which an inexpensive snap ring can be inserted, and positioning of the ball bearing is possible. You can
【００１３】[0013]
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。図１は玉軸受を使用した小型電動機の断面図、図２は図１の玉軸受 の位置決め部の部分拡大図、図３は図２のストレート軸部分のＡ−Ａ矢視図、図 ４は本考案に使用される断面が丸形でＣ状の止め輪の形状を示す平面図である。 An electric motor using a ball bearing according to an embodiment of the present invention will be described below with reference to the drawings. 1 is a sectional view of a small electric motor using a ball bearing, FIG. 2 is a partially enlarged view of the positioning portion of the ball bearing of FIG. 1, FIG. 3 is a view of the straight shaft portion of FIG. FIG. 3 is a plan view showing a shape of a C-shaped snap ring having a round cross section used in the present invention.
【００１４】 各図において、１は電動機の固定鉄心、２は回転子で全長にわたり同一径のス トレート軸４に固着されている。３は玉軸受で、ストレート軸４を支持している 。このストレート軸４にはリング状の溝部４aを有し、この溝部４aに断面が丸形 でＣ状の止め輪５を挿入し、玉軸受３の位置決めをしている。In each drawing, 1 is a fixed iron core of an electric motor, and 2 is a rotor, which is fixed to a straight shaft 4 having the same diameter over the entire length. A ball bearing 3 supports a straight shaft 4. The straight shaft 4 has a ring-shaped groove 4a, and a C-shaped snap ring 5 having a round cross section is inserted into the groove 4a to position the ball bearing 3.
【００１５】 なお、前記断面が丸形でＣ状の止め輪５は全体がリング状の溝部４aに挿入さ れるため、ＳＫ材などの高価な材料を使用しなくても一般の鋼材でよく、また、 ＳＫ材を使用した一般のＣ型やＥ型の止め輪のように１個ごとにプレス加工しな くても、線鋼材をコイル状に巻き付けて切断したものでよく、非常に安価に入手 できる。Since the C-shaped snap ring 5 having a round cross section is entirely inserted into the ring-shaped groove portion 4a, a general steel material may be used without using an expensive material such as SK material. Even if it is not necessary to press each one individually like a general C-type or E-type retaining ring using SK material, wire steel may be wound in a coil shape and cut, which is very inexpensive. Available.
【００１６】 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部４aを有し、こ の溝部４aに断面が丸形でＣ状の止め輪５を挿入することにより容易に安価な玉 軸受３の位置決めをすることができる。As described above, according to the present embodiment, the straight shaft has the ring-shaped groove portion 4a, and the retaining ring 5 having a round cross section and a C-shape is inserted into the groove portion 4a. The ball bearing 3 can be positioned.
【００１７】[0017]
以上説明したように本考案の小型電動機は、コストの高い段付軸や、高価な止 め輪などの部品を使用しなくてもストレート軸のリング状の溝部に一般の鋼材で なる断面が丸形でＣ状の止め輪を挿入することにより玉軸受の位置決めが容易に かつ安価にできる。 As described above, the small electric motor of the present invention has a circular section of a general steel material in the ring-shaped groove of a straight shaft without using costly stepped shafts or expensive snap rings. By inserting a C-shaped retaining ring, the ball bearing can be easily and inexpensively positioned.
【図１】本考案の一実施例における玉軸受を使用した小
型電動機の断面図である。FIG. 1 is a sectional view of a small electric motor using a ball bearing according to an embodiment of the present invention.
【図２】図１の玉軸受の位置決め部の部分拡大図であ
る。FIG. 2 is a partially enlarged view of a positioning portion of the ball bearing shown in FIG.
【図３】図２のストレート軸部分のＡ−Ａ矢視図であ
る。FIG. 3 is a view of the straight shaft portion of FIG. 2 taken along the line AA.
【図４】本考案に使用される断面が丸形でＣ状の止め輪
の形状を示す平面図である。FIG. 4 is a plan view showing a shape of a C-shaped snap ring having a round cross section used in the present invention.
【図５】従来の玉軸受と段付軸を使用した小型電動機の
回転子完成品の側面半断面図である。FIG. 5 is a side half-sectional view of a finished rotor of a small electric motor using a conventional ball bearing and a stepped shaft.
【図６】従来のストレート軸と玉軸受を使用した小型電
動機の回転子完成品の側面半断面図である。FIG. 6 is a side half-sectional view of a finished rotor of a small electric motor using a conventional straight shaft and a ball bearing.
１…固定鉄心、 ２…回転子、 ３…玉軸受、 ４…ス
トレート軸、 ４a…リング状の溝部、 ５…断面が丸
形でＣ状の止め輪。DESCRIPTION OF SYMBOLS 1 ... Fixed iron core, 2 ... Rotor, 3 ... Ball bearing, 4 ... Straight shaft, 4a ... Ring-shaped groove part, 5 ... Retaining ring with a round cross section and C-shape.
Claims (1)
ストレート軸を支持する玉軸受と、前記ストレート軸に
形成されたリング状の溝部とを有し、その溝部に断面が
丸形でＣ状の止め輪を挿入することにより、前記ストレ
ート軸を支持する玉軸受の位置決めとしたことを特徴と
する小型電動機。1. A straight shaft having a rotor fixed thereto, a ball bearing supporting the straight shaft, and a ring-shaped groove formed in the straight shaft, the groove having a round cross section and a C-shape. The small electric motor is characterized in that the ball bearing for supporting the straight shaft is positioned by inserting the retaining ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP047345U JPH069359U (en) | 1992-07-07 | 1992-07-07 | Small electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP047345U JPH069359U (en) | 1992-07-07 | 1992-07-07 | Small electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH069359U true JPH069359U (en) | 1994-02-04 |
Family
ID=12772574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP047345U Pending JPH069359U (en) | 1992-07-07 | 1992-07-07 | Small electric motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069359U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09285059A (en) * | 1996-04-12 | 1997-10-31 | Matsushita Electric Ind Co Ltd | Rotor shaft coming-out preventive device and fan motor |
| JPH10225047A (en) * | 1997-02-04 | 1998-08-21 | Asmo Co Ltd | Bearing structure of motor |
| US8436501B2 (en) | 2010-05-21 | 2013-05-07 | Asmo Co., Ltd. | Rotor, manufacturing method thereof and electric gear motor having the rotor |
| JP2018057192A (en) * | 2016-09-30 | 2018-04-05 | 日本電産株式会社 | Motor, and electrically-driven power steering device |
-
1992
- 1992-07-07 JP JP047345U patent/JPH069359U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09285059A (en) * | 1996-04-12 | 1997-10-31 | Matsushita Electric Ind Co Ltd | Rotor shaft coming-out preventive device and fan motor |
| JPH10225047A (en) * | 1997-02-04 | 1998-08-21 | Asmo Co Ltd | Bearing structure of motor |
| US8436501B2 (en) | 2010-05-21 | 2013-05-07 | Asmo Co., Ltd. | Rotor, manufacturing method thereof and electric gear motor having the rotor |
| JP2018057192A (en) * | 2016-09-30 | 2018-04-05 | 日本電産株式会社 | Motor, and electrically-driven power steering device |
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