JPS6260903B2 - - Google Patents
Info
- Publication number
- JPS6260903B2 JPS6260903B2 JP27150786A JP27150786A JPS6260903B2 JP S6260903 B2 JPS6260903 B2 JP S6260903B2 JP 27150786 A JP27150786 A JP 27150786A JP 27150786 A JP27150786 A JP 27150786A JP S6260903 B2 JPS6260903 B2 JP S6260903B2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- rotating shaft
- friction welding
- shaft
- 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.)
- Expired
Links
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は摩擦溶接によるステンレス等の丸棒
と軸鋼との継合わせ回転軸に軸受を嵌着させる方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of fitting a bearing to a rotating shaft by joining a round bar made of stainless steel or the like to a shaft steel by friction welding.
ステンレス等の回転軸を使用して回転軸を水、
薬液等により腐蝕しないようにしたポンプまたは
攪拌機等に使用される電動機では回転軸が高価な
ものになるので、２つの軸材を摩擦溶接により継
合わせて回転軸を製造する方法が知られている。
Using a rotating shaft made of stainless steel, etc., the rotating shaft can be
Rotating shafts for electric motors used in pumps or stirrers that are protected from corrosion by chemical solutions are expensive, so a method is known in which rotating shafts are manufactured by joining two shaft materials together by friction welding. .
摩擦溶接による継合わせ回転軸に軸受を嵌着さ
せる方法の従来例を第１図にもとづいて説明す
る。第１図は継合わせ回転軸１に嵌着された軸受
２，３および回転子鉄心４を示し、回転軸１はス
テンレスの丸棒からなる機外突出部１ａと、軸鋼
からなる回転子嵌着部１ｂとを軸受２嵌着部の中
央で突合わせ、これらの接合面５を摩擦溶接する
ことによつて形成されている。前記回転子嵌着部
１ｂは機内にあり、一般に防蝕の必要がないので
安価な軸鋼を使用することができる。また前記軸
受２嵌着部には軸受２の軸方向位置を規正する段
部１ｃが形成されている。 A conventional method of fitting a bearing to a rotating shaft jointed by friction welding will be described with reference to FIG. FIG. 1 shows the bearings 2, 3 and rotor core 4 fitted to the jointed rotating shaft 1. The rotating shaft 1 has an external protrusion 1a made of a stainless steel round bar and a rotor fitting made of shaft steel It is formed by abutting the fitting part 1b at the center of the fitting part of the bearing 2 and friction welding the joint surfaces 5 of these parts. The rotor fitting portion 1b is located inside the machine and generally does not require corrosion protection, so that inexpensive shaft steel can be used. Further, a stepped portion 1c for regulating the axial position of the bearing 2 is formed in the bearing 2 fitting portion.
一般に軸受の内径部両端には所定の面取りが設
けられているので、前記の段部１ｃの外径を軸受
の内径より充分大きくして段部の平面と軸受端部
の平面とが当接するようにする必要がある。例え
ば内径25mm、外径62mm、幅17mmの深みぞ玉軸受で
呼び番号6305の軸受を使用するときには、前記の
段部１ｃの外径は32mm〜36mmの間が適切であると
されている。すなわち最小の32mmの場合でも軸受
内径25mmより７mmは大径に、最大の36mmの場合に
は11mm大径にする必要がある。前局前記の回転子
嵌着部１ｂはこの例では軸受内径より７mm〜11mm
大径である必要があり、回転子４の内径が細い場
合でも太い軸鋼を使用しなければならないという
問題点があつた。
Generally, a predetermined chamfer is provided on both ends of the inner diameter of a bearing, so the outer diameter of the stepped portion 1c is made sufficiently larger than the inner diameter of the bearing so that the flat surface of the stepped portion and the flat surface of the end of the bearing come into contact. It is necessary to For example, when using a bearing number 6305 with a deep groove ball bearing having an inner diameter of 25 mm, an outer diameter of 62 mm, and a width of 17 mm, it is said that the appropriate outer diameter of the stepped portion 1c is between 32 mm and 36 mm. In other words, even in the case of the minimum bearing diameter of 32 mm, it is necessary to make the bearing inner diameter 7 mm larger than the 25 mm diameter, and in the case of the maximum bearing diameter of 36 mm, it is necessary to increase the diameter by 11 mm. In this example, the rotor fitting part 1b is 7 mm to 11 mm from the bearing inner diameter.
There was a problem in that it needed to have a large diameter, and even if the rotor 4 had a small inner diameter, a thick shaft steel had to be used.
またこのような方法では摩擦溶接した状態の回
転軸１が鎖線で示すようになり、摩擦溶接に伴つ
て生じた溶接部外周面の盛上がり部１ｄのために
軸受２の嵌着部の加工代が更に増すことになり、
加工に多くの手数を要するという問題点があつ
た。 In addition, in this method, the rotating shaft 1 in the friction welded state is shown by the chain line, and the machining allowance for the fitting part of the bearing 2 is reduced due to the raised part 1d on the outer peripheral surface of the welded part caused by friction welding. It will further increase,
There was a problem that processing required a lot of work.
この発明の目的は前記の問題点を解決しようと
するものであつて、摩擦溶接によるステンレス等
の丸棒と軸鋼との継合わせ回転軸に軸受を嵌着さ
せる方法において、前記軸鋼の外径を過大に大き
くすることがなく、かつ嵌着部の加工を容易にす
ることを目的とする。 An object of the present invention is to solve the above-mentioned problems, and the object of the present invention is to provide a method for fitting a bearing to a rotating shaft by joining a round bar made of stainless steel or the like to a shaft steel by friction welding. The purpose is to facilitate processing of the fitting portion without making the diameter excessively large.
この発明は、２つの軸材を摩擦溶接して回転軸
を製造する方法において、前記摩擦溶接に伴つて
生ずる溶接部外周面の盛上がりを加工して前記回
転軸を支承する軸受の軸方向位置を規正する段部
を形成するように構成する。
This invention provides a method for manufacturing a rotating shaft by friction welding two shaft members, in which the axial position of a bearing that supports the rotating shaft is adjusted by processing a bulge on the outer circumferential surface of the welded part that occurs due to the friction welding. It is configured to form a regulating step.
前記の構成によれば、摩擦溶接に伴つて溶接部
外周面は盛上つて２つの軸材の元の直径より大き
くなり、その後軸受のための充分な直径を有する
段付部が形成される。
According to the above structure, the outer circumferential surface of the welded portion rises as a result of friction welding and becomes larger than the original diameter of the two shaft members, and thereafter a stepped portion having a diameter sufficient for the bearing is formed.
以下、この発明の実施例を図面にもとづいて説
明する。
Embodiments of the present invention will be described below based on the drawings.
第２図はこの発明による摩擦溶接による継合わ
せ回転軸の製造方法を示すもので、第１図と同一
符号で示すものは同一部品である。この図におけ
る回転軸２１は、ステンレスの丸棒からなる機外
突出部２１ａと、軸鋼からなる回転子嵌着部２１
ｂとを軸受２嵌着部付近の回転子鉄心４側で突合
わせ、これらの接合面２５を摩擦溶接することに
よつて形成される。摩擦溶接すると回転軸２１は
鎖線で示すようになり、溶接部外周面に摩擦溶接
に伴う盛上がり部２１ｄを生ずる。この盛上がり
部は摩擦溶接の条件にもよるが、半径方向で３〜
５mmとなる。この盛上がり２１ｄを加工して軸受
２の軸方向位置を規正する段部２１ｃを形成す
る。 FIG. 2 shows a method of manufacturing a jointed rotating shaft by friction welding according to the present invention, and the same parts as in FIG. 1 are denoted by the same reference numerals. The rotating shaft 21 in this figure has an external protrusion 21a made of a stainless steel round bar, and a rotor fitting part 21 made of shaft steel.
b are abutted against each other on the rotor core 4 side in the vicinity of the fitting portion of the bearing 2, and the joining surfaces 25 are friction welded. When friction welding is performed, the rotating shaft 21 becomes as shown by the chain line, and a raised portion 21d is produced on the outer circumferential surface of the welded portion due to friction welding. This raised part depends on the friction welding conditions, but in the radial direction,
It will be 5mm. This raised portion 21d is processed to form a stepped portion 21c that regulates the axial position of the bearing 2.
以上述べたように、この発明によればステンレ
スの丸棒と軸鋼のような２つの軸材を突合せて接
合面を摩擦溶接し、摩擦溶接に伴つて生ずる溶接
部外周面の盛上がり部を加工して軸受の軸方向位
置を規正する段部を形成することにより継合わせ
回転軸を構成したので、加工が容易になるのみで
なく、軸鋼部の素材を細径化して安価にすること
ができるという効果が得られる。
As described above, according to the present invention, two shaft members such as a stainless steel round bar and a shaft steel are butted together and their joint surfaces are friction welded, and the raised part on the outer circumferential surface of the welded part that occurs due to friction welding is processed. The jointed rotating shaft is constructed by forming a stepped part that regulates the axial position of the bearing, which not only makes machining easier, but also makes it possible to reduce the cost by reducing the diameter of the material for the shaft steel part. You can get the effect that you can.
第１図は従来の摩擦溶接による継合わせ回転軸
の製造方法を示す正面図、第２図はこの発明によ
る摩擦溶接による継合わせ回転軸の製造方法を示
す正面図である。
２……軸受、２１……回転軸、２１ｃ……段
部、２１ｄ……盛上がり部、２５……接合面。
FIG. 1 is a front view showing a conventional method for manufacturing a jointed rotating shaft by friction welding, and FIG. 2 is a front view showing a method for manufacturing a jointed rotating shaft by friction welding according to the present invention. 2... Bearing, 21... Rotating shaft, 21c... Stepped portion, 21d... Raised portion, 25... Joint surface.
Claims (1)
方法において、前記摩擦溶接に伴つて生ずる溶接
部外周面の盛上がりを加工して前記回転軸を支承
する軸受の軸方向位置を規正する段部を形成する
ことを特徴とする摩擦溶接による回転軸の製造方
法。1. In a method of manufacturing a rotating shaft by friction welding two shaft members, a step of adjusting the axial position of a bearing that supports the rotating shaft by machining the bulge on the outer circumferential surface of the welded part that occurs due to the friction welding. 1. A method of manufacturing a rotating shaft by friction welding, the method comprising: forming a part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27150786A JPS62203529A (en) | 1986-11-14 | 1986-11-14 | Manufacture of revolving shaft by friction welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27150786A JPS62203529A (en) | 1986-11-14 | 1986-11-14 | Manufacture of revolving shaft by friction welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62203529A JPS62203529A (en) | 1987-09-08 |
| JPS6260903B2 true JPS6260903B2 (en) | 1987-12-18 |
Family
ID=17501025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27150786A Granted JPS62203529A (en) | 1986-11-14 | 1986-11-14 | Manufacture of revolving shaft by friction welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62203529A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4240045C1 (en) * | 1992-11-28 | 1994-02-03 | Licentia Gmbh | Electric motor, in particular for driving motor vehicles |
| DE29717417U1 (en) * | 1997-09-30 | 1999-02-04 | Robert Bosch Gmbh, 70469 Stuttgart | Electrical machine, in particular three-phase generator |
-
1986
- 1986-11-14 JP JP27150786A patent/JPS62203529A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62203529A (en) | 1987-09-08 |
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