JPS58130117U

JPS58130117U - Rotating shaft of electric motor

Info

Publication number: JPS58130117U
Application number: JP2666782U
Authority: JP
Inventors: 寛川上; 森長　薫; 鳥居　成介
Original assignee: 株式会社東芝
Priority date: 1982-02-26
Filing date: 1982-02-26
Publication date: 1983-09-02
Also published as: JPH0237141Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図及び第２図ａ、　　ｂはそれぞれダイレクトドラ
イブ機構の構成及びその動作を説明する側断面図、上面
図及び側面図、第３図及び第４図はそれぞれ従来の電動
機の回転軸を拡大して示す側面図及び上面図、第５図は
従来の電動機の回転軸の表面を拡大して示す写真、第６
図及び第７図ａ。ｂはそれぞれこの考案による電動機の回転軸の一実施例
及びそれを用いたダイレクトドライブ機構を示す側面図
及び上面図、第８図及び第９図はそれぞれ同実施例の回
転軸を仕上げ研磨したときの表面における鉄とクローム
、ニッケル等との位置関係及び成分比を示す側面図及び
特性図、第１０図は同実施例の回転軸を化学処理したと
きの表面における鉄とクローム、ニッケル等との位置関
係を示す側面図、第１１図乃至第１４図はそれぞれ上記
化学処理の工程を説明するための説明図、第１５図は上
記化学処理した後のキャプスタンの表面を示す写真、第
１６図は上記化学処理後における鉄とクロームとの成分
比を示す特性図、第１７図乃至第１９図は他の実施例を
示す構成説明図である。１１・・・シャーシ、１２・・・電動機、１２１・・・
回転軸、２１・・・テープ、２２・・・ピンチローラ、
２３・・・　　　゛スライダ、２４・・・軸、２５・・
・支持部材、２６゜２７・・・粗面部、２８・・・マス
キング液、２９・・・マスキング治具、３０・・・スト
ッパ、３１・・・乾燥治具、３２・・・フッ化水素化合
物溶液。Figures 1 and 2 a and b are side sectional views, top views, and side views explaining the configuration and operation of the direct drive mechanism, respectively, and Figures 3 and 4 are enlarged views of the rotating shaft of a conventional electric motor, respectively. FIG. 5 is a photograph showing an enlarged surface of the rotating shaft of a conventional electric motor; FIG.
Figures and Figure 7a. b is a side view and a top view showing an example of the rotary shaft of an electric motor according to this invention and a direct drive mechanism using the same, respectively, and FIGS. 8 and 9 are views of the rotary shaft of the same embodiment after final polishing. Fig. 10 is a side view and characteristic diagram showing the positional relationship and component ratio of iron, chromium, nickel, etc. on the surface of the same example, and Fig. 10 shows the relationship between iron, chromium, nickel, etc. A side view showing the positional relationship, FIGS. 11 to 14 are explanatory diagrams for explaining the chemical treatment process, respectively, FIG. 15 is a photograph showing the surface of the capstan after the chemical treatment, and FIG. 16 17 is a characteristic diagram showing the component ratio of iron and chromium after the above chemical treatment, and FIGS. 17 to 19 are structural explanatory diagrams showing other embodiments. 11... Chassis, 12... Electric motor, 121...
Rotating shaft, 21... tape, 22... pinch roller,
23...゛Slider, 24...axis, 25...
・Supporting member, 26° 27... Rough surface portion, 28... Masking liquid, 29... Masking jig, 30... Stopper, 31... Drying jig, 32... Hydrogen fluoride compound solution.

Claims

[Scope of utility model registration request]

In a rotating shaft of an electric motor made of an alloy of a soft metal material and a hard metal material, a rough surface part without fine racks or distortion is formed on the circumferential surface of the rotating shaft, and a concave part of the rough surface part is formed. A rotating shaft for an electric motor, characterized in that the above-mentioned soft metal material is exposed and the above-mentioned hard metal material is exposed on the protruding portion.