JPH01162776U - - Google Patents
Info
- Publication number
- JPH01162776U JPH01162776U JP5723988U JP5723988U JPH01162776U JP H01162776 U JPH01162776 U JP H01162776U JP 5723988 U JP5723988 U JP 5723988U JP 5723988 U JP5723988 U JP 5723988U JP H01162776 U JPH01162776 U JP H01162776U
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- step motor
- outer diameter
- output shaft
- convex portion
- 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
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
第１図〜第３図は、本考案の一実施例を示す図
であつて、第１図は本考案のステツプモーターの
断面図、第２図及び第３図は本考案による軸受構
造の他の例を示す要部詳細図である。第４図は従
来のステツプモーターの構造を示す断面図である
。
２１……モーター出力軸、２２……前側板、２
３……外ヨーク、２４……内ヨーク、２５……コ
イル、２６……後側板、２７……ローターマグネ
ツト、２８……リード線。
1 to 3 are views showing one embodiment of the present invention, in which FIG. 1 is a cross-sectional view of a step motor of the present invention, and FIGS. 2 and 3 are views of other bearing structures according to the present invention. FIG. FIG. 4 is a sectional view showing the structure of a conventional step motor. 21...Motor output shaft, 22...Front side plate, 2
3...outer yoke, 24...inner yoke, 25...coil, 26...rear side plate, 27...rotor magnet, 28...lead wire.
Claims (1)
ターにおいて、モーター出力軸と係合する穴を有
してステーターヨークに取り付けた側板と、前記
モーター出力軸に円筒形の永久磁石を一体化させ
たローターとから成り、前記永久磁石の少なくと
も一端にモーター出力軸方向に突出した円筒形凸
部を有し、該円筒形凸部の外径は前記永久磁石の
中央部外径よりも小さく構成した事を特徴とする
ステツプモーター。 (2) 前記モーター出力軸に対して、ラジアル方
向の軸受クリアランスが部分的に大きくなる穴を
有する前記側板と前記永久磁石との間に前記モー
ター出力軸を介して、前記永久磁石の円筒形凸部
の外径よりも外径の大きいスラストワツシヤを挟
んで構成した事を特徴とする第(1)項記載のステ
ツプモーター。[Claims for Utility Model Registration] (1) In a step motor using a permanent magnet in the rotor, a side plate having a hole that engages with the motor output shaft and attached to the stator yoke; The permanent magnet has a cylindrical convex portion protruding in the direction of the motor output shaft at least one end thereof, and the outer diameter of the cylindrical convex portion is equal to the outer diameter of the central portion of the permanent magnet. A step motor characterized by being smaller than its diameter. (2) A cylindrical convex portion of the permanent magnet is inserted between the side plate and the permanent magnet, which has a hole that partially increases bearing clearance in the radial direction with respect to the motor output shaft. The step motor according to item (1), characterized in that the step motor is constructed by sandwiching a thrust washer having an outer diameter larger than the outer diameter of the step motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5723988U JPH01162776U (en) | 1988-04-27 | 1988-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5723988U JPH01162776U (en) | 1988-04-27 | 1988-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01162776U true JPH01162776U (en) | 1989-11-13 |
Family
ID=31283096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5723988U Pending JPH01162776U (en) | 1988-04-27 | 1988-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01162776U (en) |
-
1988
- 1988-04-27 JP JP5723988U patent/JPH01162776U/ja active Pending