JPS6325883Y2 - - Google Patents
Info
- Publication number
- JPS6325883Y2 JPS6325883Y2 JP1982014131U JP1413182U JPS6325883Y2 JP S6325883 Y2 JPS6325883 Y2 JP S6325883Y2 JP 1982014131 U JP1982014131 U JP 1982014131U JP 1413182 U JP1413182 U JP 1413182U JP S6325883 Y2 JPS6325883 Y2 JP S6325883Y2
- Authority
- JP
- Japan
- Prior art keywords
- load side
- load
- bearing
- air
- supply port
- 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
- 239000003921 oil Substances 0.000 claims description 9
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 description 7
- 239000000945 filler Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案は、高速回転する回転軸を、負荷側およ
び反負荷側ブラケツトの中央部にそれぞれ配設し
た軸受で回転自在に支承する高速スピンドルモ−
タに関する。[Detailed description of the invention] The present invention is a high-speed spindle motor that rotatably supports a rotating shaft rotating at high speed with bearings arranged at the center of the load side and anti-load side brackets.
Regarding ta.
従来、高速スピンドルモ−タは、負荷側を組合
せころがり軸受で、反負荷側を組合せころがり軸
受あるいは単一せころがり軸受で構成し、かつ反
負荷側ハウジング部を軸方向に摺動可能に構成し
ている。 Conventionally, high-speed spindle motors have been configured such that the load side is a combination rolling bearing, the counter-load side is a combination rolling bearing or a single counter-rolling bearing, and the housing part on the counter-load side is configured to be slidable in the axial direction. ing.
第１図は、この従来装置の側断面図を示す。FIG. 1 shows a cross-sectional side view of this conventional device.
１は負荷側ブラケツト、２は負荷側給油口、３
は負荷側組合せアンギユラ玉軸受、４はフレ−
ム、５はステ−タ、６はロ−タ、７は反負荷側ブ
ラケツト、１０は回転軸、１１は反負荷側給油
口、１２は反負荷側組合せころがり軸受、１３は
反負荷側ハウジングである。 1 is the load side bracket, 2 is the load side oil filler port, 3
is a combination angular ball bearing on the load side, and 4 is a frame bearing.
5 is a stator, 6 is a rotor, 7 is a bracket on the anti-load side, 10 is a rotating shaft, 11 is an oil filler port on the anti-load side, 12 is a combination rolling bearing on the anti-load side, and 13 is a housing on the anti-load side. be.
ここに、反負荷側ハウジング１３は反負荷側ブ
ラケツト７の内周面に嵌合して取付けられてお
り、軸方向への摺動が可能なように構成されてい
る。 Here, the counter-load side housing 13 is fitted and attached to the inner peripheral surface of the counter-load side bracket 7, and is configured to be able to slide in the axial direction.
そして、熱膨脹等による軸方向への摺動を、反
負荷側ハウジング１３の軸方向への摺動によつて
カバ−している。 The sliding movement in the axial direction due to thermal expansion or the like is covered by the sliding movement of the anti-load side housing 13 in the axial direction.
しかるに、この従来装置には次のような欠点が
ある。 However, this conventional device has the following drawbacks.
○イ 回転軸１０にはいくらかでも曲がりが残存す
る。これを負荷側組合せアンギユラ玉軸受３で
支持したとき、他端（反負荷側）のふれが拡大
され、しかも反負荷側を径方向には堅く
（rigid）に支承するので、振動の原因となる。○A Some degree of bending remains in the rotating shaft 10. When this is supported by the load-side combination angular ball bearing 3, the runout at the other end (anti-load side) is expanded, and the anti-load side is supported rigidly in the radial direction, which causes vibration. .
○ロ 反負荷側ハウジング１３は軸方向へフリ−に
動きうるように設計されるが、組立誤差や熱膨
脹などの原因で軸方向への動きが規制される
と、負荷側および反負荷側軸受に無理な力が加
わり、振動の原因となる。また、軸受の焼付き
の原因ともなる。○B The anti-load side housing 13 is designed to be able to move freely in the axial direction, but if the axial movement is restricted due to assembly errors or thermal expansion, the bearings on the load side and anti-load side may Unreasonable force is applied and causes vibration. It also causes seizure of the bearing.
○ハ これを避けようとしてはめあいつまり反負荷
側ハウジング１３との嵌合をゆるくすると、反
負荷側ハウジング１３が反負荷側組合せころが
り軸受１２の外輪と一諸に回り出す所謂クリ−
プの発生原因となる。○C If the fit with the anti-load side housing 13 is loosened in an attempt to avoid this, the anti-load side housing 13 will rotate together with the outer ring of the anti-load side combination rolling bearing 12, resulting in a so-called crease.
This may cause a drop.
ここにおいて本考案は、これらの欠陥を払拭し
た高速スピンドルモ−タを提供することを、その
目的とする。 An object of the present invention is to provide a high-speed spindle motor that eliminates these defects.
第２図は、本考案の一実施例の側断面図であ
る。 FIG. 2 is a side sectional view of one embodiment of the present invention.
図面において第１図と同一符号は同一もしくは
相当部分を示す。 In the drawings, the same reference numerals as in FIG. 1 indicate the same or corresponding parts.
８は反負荷側給気口、９は反負荷側空気軸受で
ある。 8 is an air supply port on the opposite load side, and 9 is an air bearing on the opposite load side.
負荷側は、内周面をハウジング部とした負荷側
ブラケツト１と組合せアンギユラ玉軸受３からな
り、負荷側ブラケツト１には前記組合せアンギユ
ラ玉軸受３へ潤滑油を供給する負荷側給油口２が
設けられている。 The load side consists of a load side bracket 1 whose inner peripheral surface is a housing part and a combination angular contact ball bearing 3, and the load side bracket 1 is provided with a load side oil supply port 2 for supplying lubricating oil to the combination angular contact ball bearing 3. It is being
反負荷側は、反負荷側ブラケツト７と空気軸受
９からなり、反負荷側ブラケツト７には前記空気
軸受９へ空気を供給するための給気口８が設けら
れている。 The anti-load side consists of an anti-load side bracket 7 and an air bearing 9, and the anti-load side bracket 7 is provided with an air supply port 8 for supplying air to the air bearing 9.
負荷側の組合せアンギユラ玉軸受３には、オイ
ルミスト方式等によつて給油口２から潤滑油が供
給され、スム−ズな潤滑が行なわれるのは従来と
変わりない。 Lubricating oil is supplied to the load-side combination angular ball bearing 3 from the oil supply port 2 by an oil mist method or the like, and smooth lubrication is performed as in the conventional bearing.
一方、反負荷側は、給気口８から圧縮空気が送
られ空気軸受９から回転軸１０へ向つて吹き出
す。その圧力によつて回転軸１０は空気軸受９と
接触がまぬがれる。 On the other hand, on the opposite load side, compressed air is sent from the air supply port 8 and blown out from the air bearing 9 toward the rotating shaft 10. The pressure prevents the rotating shaft 10 from coming into contact with the air bearing 9.
かくして、本考案によれば次の効果が認められ
る。 Thus, according to the present invention, the following effects are recognized.
回転軸の反負荷側は空気軸受と接触していな
いので、曲がりは吸収され、軸方向へもスム−
スに動くため、負荷側組合せアンギユラ玉軸受
へ悪影響を与えず、振動源ともならない。ま
た、前記クリ−プの心配もない。 Since the anti-load side of the rotating shaft is not in contact with the air bearing, bending is absorbed and smoothness is achieved in the axial direction.
Because it moves smoothly, it does not adversely affect the load-side combination angular contact ball bearing and does not become a source of vibration. Further, there is no worry about the creep.
反負荷側を組合せころがり軸受にした時のよ
うな反負荷側から生じる振動がない。 There is no vibration generated from the anti-load side, unlike when a combination rolling bearing is used on the anti-load side.
オイルミスト潤滑方式を負荷側組合せアンギ
ユラ玉軸受に用いる場合は、空気軸受との空気
原は共通でよいから、空気源の配慮は不要であ
る。 When using the oil mist lubrication method for a load-side combination angular contact ball bearing, the air source may be shared with the air bearing, so there is no need to consider the air source.
第１図は従来装置の側断面図、第２図は本考案
の一実施例の側断面図である。
１……負荷側ブラケツト、２……負荷側給油
口、３……負荷側組合せアンギユラ玉軸受、４…
…フレ−ム、５……ステ−タ、６……ロ−タ、７
……反負荷側ブラケツト、８……反負荷側給気
口、９……反負荷側空気軸受、１０……回転軸、
１１……反負荷側給油口、１２……反負荷側組合
せころがり軸受、１３……反負荷側ハウジング。
FIG. 1 is a side sectional view of a conventional device, and FIG. 2 is a side sectional view of an embodiment of the present invention. 1...Load side bracket, 2...Load side oil filler port, 3...Load side combination angular ball bearing, 4...
...Frame, 5...Stator, 6...Rotor, 7
...Anti-load side bracket, 8...Anti-load side air supply port, 9...Anti-load side air bearing, 10...Rotating shaft,
11...Anti-load side oil supply port, 12...Anti-load side combination rolling bearing, 13...Anti-load side housing.
Claims (1)
荷側ブラケツトの中央部にそれぞれ配設した軸受
で回転自在に支承する高速スピンドルモ−タにお
いて、 負荷側は、内周面をハウジング部とした負荷側
ブラケツト１と組合せアンギユラ玉軸受３とで構
成し、 かつ反負荷側は反負荷側ブラケツト７と空気軸
受９とで構成し、 前記負荷側ブラケツト１には、組合せアンギユ
ラ玉軸受３へ潤滑油を供給する負荷側給油口２を
設け、 また、前記反負荷側ブラケツト７には、空気軸
受９へ空気を供給する反負荷側給気口８を設け、 前記回転軸１０の反負荷側を径方向および軸方
向に摺動自在に支承した ことを特徴とする高速スピンドルモ−タ。[Claims for Utility Model Registration] In a high-speed spindle motor in which a rotating shaft 10 that rotates at high speed is rotatably supported by bearings arranged at the center of the load side and anti-load side brackets, the load side is It is composed of a load side bracket 1 whose peripheral surface is a housing part and a combination angular contact ball bearing 3, and the anti-load side is composed of an anti-load side bracket 7 and an air bearing 9. A load-side oil supply port 2 for supplying lubricating oil to the angular contact ball bearing 3 is provided, and a counter-load-side air supply port 8 for supplying air to the air bearing 9 is provided on the counter-load side bracket 7, and the rotation shaft 1. A high-speed spindle motor characterized in that the anti-load side of the motor is slidably supported in the radial and axial directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1413182U JPS58118865U (en) | 1982-02-05 | 1982-02-05 | high speed spindle motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1413182U JPS58118865U (en) | 1982-02-05 | 1982-02-05 | high speed spindle motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58118865U JPS58118865U (en) | 1983-08-13 |
| JPS6325883Y2 true JPS6325883Y2 (en) | 1988-07-14 |
Family
ID=30026605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1413182U Granted JPS58118865U (en) | 1982-02-05 | 1982-02-05 | high speed spindle motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58118865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1449612B2 (en) † | 2001-11-26 | 2017-03-15 | Makino Milling Machine Co. Ltd. | Spindle device of machine tool and method of replacing spindle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3454309A (en) * | 1967-10-04 | 1969-07-08 | Brown & Sharpe Mfg | Hydrostatic machine tool spindle assembly with backing-up mechanical antifriction bearing |
-
1982
- 1982-02-05 JP JP1413182U patent/JPS58118865U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3454309A (en) * | 1967-10-04 | 1969-07-08 | Brown & Sharpe Mfg | Hydrostatic machine tool spindle assembly with backing-up mechanical antifriction bearing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1449612B2 (en) † | 2001-11-26 | 2017-03-15 | Makino Milling Machine Co. Ltd. | Spindle device of machine tool and method of replacing spindle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58118865U (en) | 1983-08-13 |
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