JPS5842699B2 - Guide bearing device for vertical shaft rotating electric machine - Google Patents
Guide bearing device for vertical shaft rotating electric machineInfo
- Publication number
- JPS5842699B2 JPS5842699B2 JP56078058A JP7805881A JPS5842699B2 JP S5842699 B2 JPS5842699 B2 JP S5842699B2 JP 56078058 A JP56078058 A JP 56078058A JP 7805881 A JP7805881 A JP 7805881A JP S5842699 B2 JPS5842699 B2 JP S5842699B2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- electric machine
- rotating electric
- rotating shaft
- bearing device
- 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
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 229910000897 Babbitt (metal) Inorganic materials 0.000 claims description 11
- 150000002739 metals Chemical class 0.000 claims description 4
- 230000032683 aging Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Description
【発明の詳細な説明】
本発明は支軸回転電機の改良した案内軸受装置に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved guide bearing device for a spindle rotating electric machine.
水車発電機などの支軸回転電機の案内軸受装置は軸受メ
タルと回転軸とのギャップ、いわゆるメタルギャップの
調整が可能であるセグメント形案内軸受が多く用いられ
ている。Segment type guide bearings, which allow adjustment of the gap between the bearing metal and the rotating shaft, the so-called metal gap, are often used in guide bearing devices for spindle rotating electric machines such as water turbine generators.
特に最近の高速大容量揚水発電電動機などでは過大な荷
重を支持する必要が生じてきている。In particular, recent high-speed, large-capacity, pumped-storage generators and motors have become required to support excessive loads.
従来のセグメント形案内軸受装置はセグメント形軸受メ
タルの背面に熱処理硬化した平板状のインサートを取付
け、先端を熱処理硬化した球面状の調整ねじでインサー
トをピボット状に押圧し、所定のメタルギャップを保持
すると共に回転軸の偏心による不平衡な荷重を支持して
いる。Conventional segment-type guide bearing devices attach a heat-treated and hardened flat insert to the back of the segment-type bearing metal, and use a spherical adjustment screw with a heat-treated and hardened tip to press the insert into a pivot shape to maintain a predetermined metal gap. At the same time, it supports unbalanced loads due to eccentricity of the rotating shaft.
しかるに最近の前記大容量機においては、極めて過大な
荷重を支持する必要があり、従来の装置では支持不能に
なるか、あるいは経年変化によりインサートと調整ねじ
の先端とが摩耗および変形して、次第にメタルギャップ
が拡大し、遂には軸振れの増大、軸受温度の上昇、およ
びコレクタリングの振れの増大によりブラシの接触不良
などを起して、回転電機に重大な支障をきたすなどの欠
点があった。However, recent high-capacity machines need to support extremely large loads, which can no longer be supported by conventional equipment, or the inserts and the tips of the adjustment screws may wear out and deform due to aging, resulting in gradual wear and tear. The metal gap widened, which eventually led to increased shaft runout, increased bearing temperature, and increased collector ring runout, which caused poor contact with the brushes, causing serious problems for the rotating electrical machine. .
本発明はセグメント形軸受メタルの背面に取付けたイン
サートと、このインサートに当接する調整ねじとの接触
面を、摩耗および変形を防止する形状にした案内軸受装
置を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a guide bearing device in which the contact surface between an insert attached to the back surface of a segment-shaped bearing metal and an adjustment screw that abuts the insert is shaped to prevent wear and deformation.
以下本発明を図面に示す一実施例について説明する。An embodiment of the present invention shown in the drawings will be described below.
第１図および第２図において、支軸の回転軸１の周囲に
複数個のセグメント状の軸受メタルを配設し、軸受メタ
ル２の背面の凹部にインサート３をねじで取付け、回転
電機の固定枠の一部である軸受支え４に調整可能にねじ
込まれた調整ねじ５をナツト６で固定し、調整ねじ５の
一端に取付けた目盛板７を軸受支え４に取付ける目盛板
７用の指針′８で調整量を指示している。In Figures 1 and 2, a plurality of segment-shaped bearing metals are arranged around the rotating shaft 1 of the support shaft, and an insert 3 is installed in the recess on the back of the bearing metal 2 with screws to fix the rotating electric machine. An adjusting screw 5 that is adjustable and screwed into a bearing support 4 that is a part of the frame is fixed with a nut 6, and a scale plate 7 attached to one end of the adjusting screw 5 is attached to the bearing support 4.A pointer for the scale plate 7 is attached. 8 indicates the amount of adjustment.
調整ねじ５の軸受メタル２側の端部５ａは球面であって
、この球面に接触するインサート３の面３ａは球面の曲
率より大きい曲率の円筒状の凹面の形状をなし、円筒状
の凹面の軸線が回転軸１の軸線の方向に一致させている
。The end 5a of the adjusting screw 5 on the bearing metal 2 side is a spherical surface, and the surface 3a of the insert 3 that contacts this spherical surface has a cylindrical concave shape with a curvature larger than the curvature of the spherical surface. The axis is made to coincide with the direction of the axis of the rotating shaft 1.
次に作用を説明する。Next, the action will be explained.
回転軸１と軸受メタル２との間のメタルギャップは調整
ねじ５を回動し、目盛板７の目盛によって調整を行う。The metal gap between the rotating shaft 1 and the bearing metal 2 is adjusted by rotating the adjusting screw 5 and using the scale of the scale plate 7.
インサート３と調整ねじ５との接触部分は円筒状の凹面
と球面との接触なので、従来の平面と球面との接触より
も接触面積が太きいから、接触面圧を低くすることがで
きる。Since the contact portion between the insert 3 and the adjustment screw 5 is a contact between a cylindrical concave surface and a spherical surface, the contact area is larger than the conventional contact between a flat surface and a spherical surface, so that the contact surface pressure can be lowered.
従って、インサート３と調整ねじ５との接触部分の摩耗
および変形を防止することができると共に、軸受の支持
荷重を増大することができて、経年によるメタルギャッ
プの拡大を防止することができる。Therefore, wear and deformation of the contact portion between the insert 3 and the adjusting screw 5 can be prevented, and the load supported by the bearing can be increased, thereby preventing the metal gap from expanding over time.
本発明と従来技術との比較実験を行ない、直径＊＊２０
００ｍｍの回転軸の円周１向に１８個のセグメント状の
軸受メタルを配設し、回転軸の回転数を４０ Ｏｒ−ｐ
−ｍで軸受メタル９か所における３か月間のメタルギャ
ップの変化を測定した結果（１次の通りであり、本発明
によるメタルギャップの変化は殆んど生じてなく、その
差は顕著であった。A comparative experiment was conducted between the present invention and the prior art, and the diameter **20
18 segment-shaped bearing metals are arranged in one direction around the circumference of the rotating shaft of 00 mm, and the rotation speed of the rotating shaft is 40 Or-p.
-m, the results of measuring the changes in the metal gap at nine bearing metal locations over a three-month period (as shown in the first order), there was almost no change in the metal gap due to the present invention, and the difference was remarkable. Ta.
なお、調整ねじに接するインサート面を球面にしても同
様の効果は得られるが、球面と球面との接触となるため
水平力向と垂直力向との両者の中心を完全に＝致させて
組立てなければ極めて不安定となる欠点があるので、実
用上使用には困難がある。Note that the same effect can be obtained by making the insert surface in contact with the adjustment screw spherical, but since it is a spherical surface in contact with a spherical surface, the centers of both the horizontal and vertical force directions must be perfectly aligned. Otherwise, it has the disadvantage of being extremely unstable, making it difficult to use in practice.
以上の様に本発明によれば、支軸回転電機の案内軸受装
置においてセグメント形軸受メタルの背面に取付けたイ
ンサートの調整ねじとの接触面を円筒状の凹面にし、調
整ねじの接触面を球状の凸面にしたので、接触面の摩耗
および変形を防止することかできると共に、軸受の支持
荷重を増大することができ、経年によるメタルギャップ
の拡大を防止することができるなどのすぐれた効果が得
られる。As described above, according to the present invention, in a guide bearing device for a spindle rotating electrical machine, the contact surface of the insert attached to the back surface of the segment-shaped bearing metal with the adjustment screw is made into a cylindrical concave surface, and the contact surface of the adjustment screw is made into a spherical shape. The convex surface prevents wear and deformation of the contact surface, increases the supporting load of the bearing, and prevents the metal gap from expanding over time. It will be done.
第１図は本発明の支軸回転電機の案内軸受装置の一実施
例を示す縦断面図、第２図は第１図にＡ−Ａ線に沿う断
同図である。
１・・・・・・回転軸、２・・・・・・軸受メタル、３
・・・・・・インサート、４・・・・・・軸受支え、５
・・・・・・調整ねじ。FIG. 1 is a longitudinal cross-sectional view showing an embodiment of a guide bearing device for a spindle rotating electric machine of the present invention, and FIG. 2 is a cross-sectional view taken along line A--A in FIG. 1. 1...Rotating shaft, 2...Bearing metal, 3
...Insert, 4...Bearing support, 5
...adjustment screw.
Claims (1)
受メタルで支持し、この軸受メタルと回転軸とのギャッ
プを軸受メタルの背面から調整ねじで調整するものにお
いて、前記調整ねじの先端部を球面にし、この球面に接
触する前記軸受メタルの背面に球面の曲率より大きい曲
率を有すると共にその軸線が回転軸の軸線の方向に一致
する円筒状の凹面を供えたインサートを装着したことを
特徴とする支軸回転電機の案内軸受装置。1. In a device in which the rotating shaft of a support shaft is supported by bearing metals of a plurality of segmented guide bearings, and the gap between the bearing metals and the rotating shaft is adjusted with an adjusting screw from the back side of the bearing metal, the tip of the adjusting screw is made into a spherical surface, and an insert having a cylindrical concave surface having a curvature larger than the curvature of the spherical surface and whose axis coincides with the direction of the axis of the rotating shaft is attached to the back surface of the bearing metal that contacts the spherical surface. A guide bearing device for a spindle rotating electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56078058A JPS5842699B2 (en) | 1981-05-25 | 1981-05-25 | Guide bearing device for vertical shaft rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56078058A JPS5842699B2 (en) | 1981-05-25 | 1981-05-25 | Guide bearing device for vertical shaft rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5716545A JPS5716545A (en) | 1982-01-28 |
| JPS5842699B2 true JPS5842699B2 (en) | 1983-09-21 |
Family
ID=13651247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56078058A Expired JPS5842699B2 (en) | 1981-05-25 | 1981-05-25 | Guide bearing device for vertical shaft rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5842699B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4657064A (en) * | 1984-12-21 | 1987-04-14 | Hunter Automated Machinery Corporation | Adjustable guide slippers for matchplate molding machine |
| EP0768334B1 (en) * | 1995-10-16 | 2004-02-18 | Sumitomo Chemical Company Limited | Prepreg, process for producing the same and printed circuit substrate using the same |
-
1981
- 1981-05-25 JP JP56078058A patent/JPS5842699B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5716545A (en) | 1982-01-28 |
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