JPS58174716A - Bearing device of rotary electrical equipment - Google Patents
Bearing device of rotary electrical equipmentInfo
- Publication number
- JPS58174716A JPS58174716A JP57059203A JP5920382A JPS58174716A JP S58174716 A JPS58174716 A JP S58174716A JP 57059203 A JP57059203 A JP 57059203A JP 5920382 A JP5920382 A JP 5920382A JP S58174716 A JPS58174716 A JP S58174716A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- rotating shaft
- rotating
- load
- axis
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、回転軸を回転自在に支承する回転電機の軸
受装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bearing device for a rotating electrical machine that rotatably supports a rotating shaft.
従来この種の装置としては、第1図に示すものがあった
。図において、(1)は例えば水車発電機の回転軸、(
2)はこの回転軸(1)に固着された回転板。A conventional device of this type is shown in FIG. In the figure, (1) is, for example, the rotating shaft of a water turbine generator, (
2) is a rotating plate fixed to this rotating shaft (1).
(3)はこの回転板(2)の下面に位置し、回転軸(1
)に対して適当な間隙を介して設けられ、回転軸(1)
の軸方向下向きの推力荷重を受は止め、円周方向に複数
個配設された推力軸受、(4)はこの推力軸受(3)を
支持する支持台、(5)はこの支持台(4)に取り付け
られ、推力軸受(3)を偏心させ、推力軸受(3)と回
転板(2)との間に楔状油膜を形成させるピボット、(
6)は回転軸(1)の半径方向荷重を受は止める複数個
の案内軸受、(7)はこの案内軸受(6)を支持する支
持環、(8)はこの支持環(7)の内周面に設けられ、
案内軸受(6)に当接している押しボルト、(9)はこ
れら(2)ないしく8)を収容する軸受油槽であり、図
示しない潤滑油が貯留されている。(3) is located on the bottom surface of this rotating plate (2), and the rotating shaft (1
) with an appropriate gap between the rotating shaft (1)
(4) is a support stand that supports this thrust bearing (3), (5) is this support stand (4). ), the pivot is attached to (
6) is a plurality of guide bearings that receive and stop the radial load of the rotating shaft (1), (7) is a support ring that supports this guide bearing (6), and (8) is a support ring within this support ring (7). Provided on the peripheral surface,
The push bolt (9) in contact with the guide bearing (6) is a bearing oil tank that accommodates these (2) to 8), and stores lubricating oil (not shown).
次に動作について説明する。推力軸受(3)は、図示し
ない水車、発1機、励磁機などの回転部全重電及び他に
水車羽根に作用する水圧の軸方向下向きの推力荷重を受
は止める。案内軸受(6)は回転部の半径方向荷重を支
持するもので、回転部が完全に平衡で回転軸+11が垂
直であれば理論的に半径方向荷重は無く、案内軸受(6
)はガイドの役割りをすれば良いのである。しかし、実
際問題としては、回転軸(1)の中心と、回転部の重心
とは、完全には一致しないので、どうしても不平衡を発
生する。Next, the operation will be explained. The thrust bearing (3) receives and stops the downward thrust load in the axial direction of the water pressure acting on all the rotating parts of the water turbine (not shown), the generator, the exciter, and other water pressure acting on the water turbine blades. The guide bearing (6) supports the radial load of the rotating part.If the rotating part is perfectly balanced and the rotating axis +11 is vertical, there is theoretically no radial load, and the guide bearing (6) supports the radial load of the rotating part.
) can act as a guide. However, as a practical matter, the center of the rotating shaft (1) and the center of gravity of the rotating part do not completely coincide, so that unbalance inevitably occurs.
従って、案内軸受(6)は不平衡に伴う半径方向荷重を
受は止めることになる。Therefore, the guide bearing (6) stops receiving the radial load associated with the unbalance.
しかしながら上述した従来の軸受装置では、回転軸(1
)の軸方向下向きの推力荷重と回転軸(1)の半径方向
荷重を、それぞれ推力軸受(3)、案内軸受(6)で支
持するため、構造が複雑で高価なものとなる。However, in the conventional bearing device described above, the rotating shaft (1
) and the radial load of the rotating shaft (1) are supported by the thrust bearing (3) and the guide bearing (6), respectively, making the structure complicated and expensive.
また、両軸受の軸受油槽(9)内に占める割合や油中に
浸る部分が多いためロスが大きいなどの欠点がある。又
、推力軸受(3)が水平に配置されているため、油流中
の気泡をかみ込み軸受損傷を引き起す一因となる欠点が
ある。In addition, there are drawbacks such as large losses due to the proportion of both bearings in the bearing oil tank (9) and the large portions immersed in oil. Further, since the thrust bearing (3) is arranged horizontally, there is a drawback that air bubbles in the oil flow are trapped and cause damage to the bearing.
この発明は上記のような従来のものの欠点を除去するた
めになされたものであり、回転軸の軸方向下向きの推力
荷重と回転軸の半径方向荷重を、一つの軸受で支持する
ことにより、構造が簡単で安価な軸受装置を提供するも
めである。This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and by supporting the downward axial thrust load of the rotating shaft and the radial load of the rotating shaft with a single bearing, the structure can be improved. The aim is to provide a simple and inexpensive bearing device.
以下、この発明の一実施例を第2図に基づいて説明する
。図において(1) 、 (4) 、 (5) 、 (
9)は上述した従来装置の構成と同様である。αQは回
転軸+11に傾斜されて固着された回転板、α■はこの
回転板00の下面に位置しかつその回転板αQの下面に
対し直角線上に配置され1回転軸(1)の軸方向下向き
の推力荷重と回転軸illの半径方向荷重を受は止め1
回転部 (11を回転自在に支承し、円周方向に複数個
配設された軸受である。Hereinafter, one embodiment of the present invention will be described based on FIG. 2. In the figure (1), (4), (5), (
9) is similar to the configuration of the conventional device described above. αQ is a rotating plate tilted and fixed to the rotation axis +11, α■ is located on the lower surface of this rotating plate 00 and is arranged on a line perpendicular to the lower surface of the rotating plate αQ, in the axial direction of the 1 rotation axis (1) Receives the downward thrust load and the radial load of the rotating shaft ill 1
Rotating part (11) is rotatably supported and is a plurality of bearings arranged in the circumferential direction.
本発明の軸受装置においては、軸受αυの支持力の鉛直
方向成分で回転軸(1)の軸方向下向きの推力荷重を、
軸受αυの支持力め半径方向成分で回転軸+11の半径
方向荷重を支持する。即ち、一つの軸受01)で推力荷
重と半径方向荷重を受は止めて回転軸(1)を回転自在
に支承する。又、第21図に示すように軸受0υを傾斜
させているため、油流中の気泡をかみ込んでも空泡が出
ていきやすい。従って、軸受損傷を引き起す要因を解消
することができる。In the bearing device of the present invention, the downward axial thrust load of the rotating shaft (1) is handled by the vertical component of the supporting force of the bearing αυ.
The radial load of the rotating shaft +11 is supported by the radial component of the supporting force of the bearing αυ. That is, one bearing 01) receives and stops the thrust load and the radial load, and rotatably supports the rotating shaft (1). Moreover, since the bearing 0υ is inclined as shown in FIG. 21, even if air bubbles are caught in the oil flow, the air bubbles are likely to come out. Therefore, factors that cause bearing damage can be eliminated.
以上のように装置は簡単となって、安価に製作でき、メ
インテナンスも容易である。また、油中に浸っている回
転部や軸受面積が減るため、ロスが小さくなる。As described above, the device is simple, can be manufactured at low cost, and is easy to maintain. Additionally, the area of rotating parts and bearings immersed in oil is reduced, resulting in less loss.
以上のように、この発明によれば、回転軸に回転板を傾
斜させて固着させ、回転軸を支承する軸受を回転板の下
面に位置させかつその回転板の下面に対し直角線上に配
置させ、回転軸の軸方向下向きの推力荷重と回転軸の半
径方向荷重を一つの軸受で支持するようにしたので、構
造が簡単で安価な軸受装置を得ることができる。As described above, according to the present invention, the rotating plate is fixed to the rotating shaft at an angle, and the bearing that supports the rotating shaft is located on the lower surface of the rotating plate and is arranged on a line perpendicular to the lower surface of the rotating plate. Since the downward axial thrust load of the rotating shaft and the radial load of the rotating shaft are supported by one bearing, it is possible to obtain a bearing device with a simple structure and low cost.
第1図は従来の回転電機の軸受装置を示す断面側面図、
第2図はこの発明の一実施例による回転1機の軸受装置
を示す断面側面図である。
図において、11)は回転軸、 QOは回転板、αυは
軸受である。
尚、図中同一符号は同−又は相当部分を示す。
代理人 葛 野 信 −
第1図
第2図Figure 1 is a cross-sectional side view showing a conventional rotating electric machine bearing device.
FIG. 2 is a sectional side view showing a bearing device for one rotating machine according to an embodiment of the present invention. In the figure, 11) is the rotating shaft, QO is the rotating plate, and αυ is the bearing. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Shin Kuzuno - Figure 1 Figure 2
Claims (1)
面に位置しかつその回転板の下面に対し直角線上に配置
され、上記回転軸の軸方向下向きの推力荷重と上記回転
軸の半径方向荷重とを支持し、上記回転軸を回転自在に
支承し、円周方向に複数個配設された軸受を備えた回転
電機の軸受装置。A rotary plate tilted and fixed to the rotary shaft, located on the lower surface of the rotary plate and arranged on a line perpendicular to the lower surface of the rotary plate, and a thrust load directed downward in the axial direction of the rotary shaft and a radius of the rotary shaft. A bearing device for a rotating electric machine, which supports a directional load, rotatably supports the rotating shaft, and includes a plurality of bearings arranged in a circumferential direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57059203A JPS58174716A (en) | 1982-04-07 | 1982-04-07 | Bearing device of rotary electrical equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57059203A JPS58174716A (en) | 1982-04-07 | 1982-04-07 | Bearing device of rotary electrical equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58174716A true JPS58174716A (en) | 1983-10-13 |
Family
ID=13106624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57059203A Pending JPS58174716A (en) | 1982-04-07 | 1982-04-07 | Bearing device of rotary electrical equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58174716A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20208133U1 (en) * | 2002-05-24 | 2003-10-02 | Skf Ab | Plain bearings for axial and radial bearings |
EP1365148A3 (en) * | 2002-05-24 | 2006-04-19 | Ab Skf | Lubricating system for the azimuth turning gear of the nacelle of a wind turbine |
-
1982
- 1982-04-07 JP JP57059203A patent/JPS58174716A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20208133U1 (en) * | 2002-05-24 | 2003-10-02 | Skf Ab | Plain bearings for axial and radial bearings |
EP1365148A3 (en) * | 2002-05-24 | 2006-04-19 | Ab Skf | Lubricating system for the azimuth turning gear of the nacelle of a wind turbine |
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