JPH0318654U - - Google Patents
Info
- Publication number
- JPH0318654U JPH0318654U JP7879989U JP7879989U JPH0318654U JP H0318654 U JPH0318654 U JP H0318654U JP 7879989 U JP7879989 U JP 7879989U JP 7879989 U JP7879989 U JP 7879989U JP H0318654 U JPH0318654 U JP H0318654U
- Authority
- JP
- Japan
- Prior art keywords
- ball bearing
- rotor yoke
- cut
- preload
- inner ring
- 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
- 230000036316 preload Effects 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Brushless Motors (AREA)
- Motor Or Generator Frames (AREA)
Description
第1図は本考案に係るモータの軸受装置の一実
施例をブラシレスモータとともに示す縦断面図、
第2図は第1図のロータヨークの要部を示す斜視
図、第3図は従来のモータ軸受装置をブラシレス
モータとともに示す縦断面図である。
1……ステータ部材(軸受ケーシング)、3,
5……ボールベアリング、3a,5a……内輪、
3b,5b……外輪、7……フランジ、9……回
路基板、11……スペーサ板、13……磁心コア
、15……突極歯、17……駆動コイル、19…
…ロータ軸、21……ロータヨーク、23……ね
じ、25……側壁、27……駆動マグネツト、2
9……回転体(チヤツキング円盤)、33……予
圧部材(予圧ばね)、35……予圧部材(切起し
片)。
FIG. 1 is a longitudinal sectional view showing an embodiment of a motor bearing device according to the present invention together with a brushless motor;
FIG. 2 is a perspective view showing a main part of the rotor yoke shown in FIG. 1, and FIG. 3 is a longitudinal sectional view showing a conventional motor bearing device together with a brushless motor. 1... Stator member (bearing casing), 3,
5...Ball bearing, 3a, 5a...Inner ring,
3b, 5b... Outer ring, 7... Flange, 9... Circuit board, 11... Spacer plate, 13... Magnetic core, 15... Salient pole tooth, 17... Drive coil, 19...
... Rotor shaft, 21 ... Rotor yoke, 23 ... Screw, 25 ... Side wall, 27 ... Drive magnet, 2
9... Rotating body (chucking disk), 33... Preload member (preload spring), 35... Preload member (cut and raised piece).
Claims (1)
記ステータ側に配置された少なくとも1個のボー
ルベアリングと、 このボールベアリングに回転自在に軸支された
ロータ軸と、 前記ボールベアリングから突出する前記ロータ
軸の片端面側にねじ止めされたロータヨークと、 前記ボールベアリングの内輪と前記ロータヨー
クの間に弾性的に介在され前記ボールベアリング
に予圧を与える予圧部材と、 を具備してなるモータの軸受装置において、 前記予圧部材が、前記ロータヨークから切起こ
されるとともにその先端部が前記ボールベアリン
グの内輪に圧接する切起し片であることを特徴と
するモータの軸受装置。[Claims for Utility Model Registration] At least one ball bearing disposed on the stator side with its outer ring fixed to the stator side; a rotor shaft rotatably supported by the ball bearing; A rotor yoke screwed to one end surface of the rotor shaft protruding from the ball bearing; and a preload member elastically interposed between the inner ring of the ball bearing and the rotor yoke to apply preload to the ball bearing. A bearing device for a motor, characterized in that the preload member is a cut-and-raised piece that is cut and raised from the rotor yoke and whose tip portion presses against the inner ring of the ball bearing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7879989U JPH0318654U (en) | 1989-07-04 | 1989-07-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7879989U JPH0318654U (en) | 1989-07-04 | 1989-07-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0318654U true JPH0318654U (en) | 1991-02-25 |
Family
ID=31622384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7879989U Pending JPH0318654U (en) | 1989-07-04 | 1989-07-04 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0318654U (en) |
-
1989
- 1989-07-04 JP JP7879989U patent/JPH0318654U/ja active Pending
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