JPH09298856A - Bearing oil sealing device for vertical rotating electric machine - Google Patents

Bearing oil sealing device for vertical rotating electric machine

Info

Publication number
JPH09298856A
JPH09298856A JP10771696A JP10771696A JPH09298856A JP H09298856 A JPH09298856 A JP H09298856A JP 10771696 A JP10771696 A JP 10771696A JP 10771696 A JP10771696 A JP 10771696A JP H09298856 A JPH09298856 A JP H09298856A
Authority
JP
Japan
Prior art keywords
oil
groove
shaped
bearing
oil sealing
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
Application number
JP10771696A
Other languages
Japanese (ja)
Inventor
Yukihiro Yamashita
幸広 山下
Original Assignee
Mitsubishi Electric Corp
三菱電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp, 三菱電機株式会社 filed Critical Mitsubishi Electric Corp
Priority to JP10771696A priority Critical patent/JPH09298856A/en
Publication of JPH09298856A publication Critical patent/JPH09298856A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To prevent lubricating oil from flowing out of an oil tank by forming a protrusion at the outer periphery part of a bearing runner which is disposed in the oil tank and fixed on the rotating shaft of a dynamo-electric machine. SOLUTION: A bearing runner 2 rotates, oil 4 moves up along the inner periphery of the bearing runner 2 in a clearance between the bearing runner 2 and an oil weir 5 by means of centrifugal force by oil viscosity and rotation. When the oil 4 which has moved up reaches an oil return hole 9 in the bearing runner 2, the oil passes through the oil return hole 9, swung away and returned to an oil tank 7 by centrifugal force. A part of oil 4 moves up further at the outer periphery of the bearing runner 2 and reaches the lower surface of a disc-shaped protrusion. The oil 4 which has reached the lower surface of the protrusion 10 passes through a groove part 11 and swung away by centrifugal force from a V-shaped groove 12. The V-shaped groove 12 is constituted so that its outside may become narrower gradually, therefore, the oil film of the oil 4 becomes thicker as it moves in the outward direction of the disc- shaped protrusion 10, and the oil is formed into oil drops at the outer end part of the disc-shaped protrusion 10. It is thus possible to facilitate swinging by centrifugal force.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】この発明は、油浴潤滑式の立
形回転電機の軸受油封止装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing oil sealing device for an oil bath lubrication type vertical rotating electric machine.

【0002】[0002]

【従来の技術】図15は例えば実開昭57ー27528
号公報に示された従来の立形回転電機の軸受油封止構造
を示す図である。油槽41は、底中央より立ち上がる内
筒42が設けられた油槽本体43と、油槽本体43を閉
鎖する蓋44から構成されている。軸1が蓋44を貫通
する位置には、軸1に取り付けられた回転ラビリンス4
5と蓋44に取り付けられた固定ラビリンス46とでラ
ビリンスパッキン47が形成されている。油槽41内で
軸1に取り付けられている回転リング48は、軸1に取
り付けられた位置より半径方向斜め下に伸びる傘形リン
グ49と、傘形リング49の下端に取り付けられた円環
板状の摺動リング50から構成されている。傘形リング
49の下部外側面と摺動リング50の外側面とは同径同
軸心の円筒面51を形成し、また摺動リング50には、
内側面から外側の円筒面51に貫通する穴52が複数個
形成されている。摺動リング50の下端面には、軸1の
推力を受けるスラスト軸受金53が設けられ、円筒面5
1には、軸1を半径方向に支持するラジアル軸受金54
が設けられている。油槽41には、円筒面51の一部が
没する高さまで潤滑用の油4が入れられている。傘形リ
ング49には、円筒面51の上方に位置して曲面56を
有する円環状の案内リング55が設置されている。
2. Description of the Related Art FIG.
It is a figure which shows the bearing oil sealing structure of the conventional vertical rotary electric machine shown by the publication. The oil tank 41 is composed of an oil tank body 43 provided with an inner cylinder 42 rising from the center of the bottom, and a lid 44 closing the oil tank body 43. At the position where the shaft 1 penetrates the lid 44, the rotary labyrinth 4 attached to the shaft 1
5 and a fixed labyrinth 46 attached to the lid 44 form a labyrinth packing 47. The rotary ring 48 attached to the shaft 1 in the oil tank 41 includes an umbrella ring 49 extending obliquely downward in the radial direction from the position attached to the shaft 1, and an annular plate shape attached to the lower end of the umbrella ring 49. Of the sliding ring 50. The lower outer surface of the umbrella-shaped ring 49 and the outer surface of the sliding ring 50 form a cylindrical surface 51 having the same diameter and a coaxial center.
A plurality of holes 52 penetrating from the inner surface to the outer cylindrical surface 51 is formed. A thrust bearing metal 53 that receives the thrust of the shaft 1 is provided on the lower end surface of the sliding ring 50, and
1 is a radial bearing metal 54 for supporting the shaft 1 in the radial direction.
Is provided. The oil tank 41 is filled with the lubricating oil 4 to a height at which a part of the cylindrical surface 51 is submerged. The umbrella-shaped ring 49 is provided with an annular guide ring 55 located above the cylindrical surface 51 and having a curved surface 56.

【0003】次に動作について説明する。軸1を回転さ
せることにより傘形リング49および摺動リング50が
回転し、穴52のポンプ作用により油4が油槽41内を
循環して回転リング48とスラスト軸受金53およびラ
ジアル軸受金54との摺動面を潤滑し冷却する。しか
し、穴52を通った油4は回転リング48とラジアル軸
受金54との隙間を通って上昇し、この上昇した油4が
ラビリンスパッキン47に達すると外部に漏出する恐れ
が生じる。これを防止するために曲面56を有した案内
リング55を回転リング48とラジアル軸受金54との
隙間上方に設置し、上昇した油4を曲面56に当り回転
による遠心力で半径方向外方へ流すよう構成している。
Next, the operation will be described. When the shaft 1 is rotated, the umbrella ring 49 and the sliding ring 50 are rotated, and the oil 4 circulates in the oil tank 41 by the pumping action of the hole 52, so that the rotating ring 48, the thrust bearing metal 53, and the radial bearing metal 54. Lubricate and cool the sliding surface of. However, the oil 4 that has passed through the hole 52 rises through the gap between the rotary ring 48 and the radial bearing metal 54, and when this raised oil 4 reaches the labyrinth packing 47, it may leak to the outside. In order to prevent this, a guide ring 55 having a curved surface 56 is installed above the gap between the rotary ring 48 and the radial bearing metal 54, and the rising oil 4 hits the curved surface 56 and is radially outward by the centrifugal force due to the rotation. It is configured to flush.

【0004】[0004]

【発明が解決しようとする課題】従来の立形回転電機の
軸受油封止構造は以上のように構成されているので、回
転リング48とラジアル軸受金54の隙間から上昇する
油4は案内リング55の曲面56に当り遠心力により振
り切られるが、飛散した油4は油霧状となりラビリンス
パッキン47から外部に漏出したり、また油4を振り切
るための遠心力の作用も小さい等の問題点があった。
Since the conventional bearing oil sealing structure of the vertical rotating electric machine is constructed as described above, the oil 4 rising from the gap between the rotary ring 48 and the radial bearing metal 54 is guided by the guide ring 55. Although it is shaken off by the centrifugal force on the curved surface 56, the scattered oil 4 becomes an oil mist and leaks out from the labyrinth packing 47, and the centrifugal force for shaking off the oil 4 has a small effect. It was

【0005】この発明は、上記のような問題点を解消す
るためになされたもので、油を油霧状に変化させずに油
滴状にして遠心力の作用を増大させ振り切りを容易にす
ることにより、油の軸受部外への漏出を防止できる立形
回転電機の軸受油封止装置を提供することを目的とす
る。
The present invention has been made in order to solve the above-mentioned problems, and makes the oil drop-like without changing it into an oil mist to increase the action of centrifugal force and facilitate the shake-off. Accordingly, it is an object of the present invention to provide a bearing oil sealing device for a vertical rotating electric machine that can prevent oil from leaking out of the bearing portion.

【0006】[0006]

【課題を解決するための手段】この発明に係わる立形回
転電機の軸受油封止装置は、潤滑油が貯留された油槽中
に配設され、立形回転電機の回転軸に固定された軸受ラ
ンナーと、軸受ランナー外周部に設けられた円板状ある
いは円錐板状の突起部を備え、潤滑油の油槽外への漏出
を防止するようにしたものである。また、円板状の突起
部には、下面に内側が広幅で外側が細幅のV字状溝が形
成されているものである。また、V字状溝は、内側が広
幅で深く、外側が細幅で浅く形成されているものであ
る。また、円板状の突起部には、下面に径方向に溝部を
有する周方向に沿った内側の第一の凸部と外周部の第二
の凸部が形成され、第二の凸部の溝部は第一の凸部の溝
部より細幅でかつ少数であるものである。また、円板状
の突起部の外周部には、下面に内側方向への勾配を有す
る突起部が形成され、勾配を有する突起部の所定位置に
は溝が設けられているものである。また、円板状の突起
部には、外周から内側方向に向かって中空状となる溝部
と、円板状の突起部の下面側の突出根元部に周方向に沿
った溝部が形成されているものである。また、円板状の
突起部には、下面に鋸歯状の突起部が高さが外側方向に
順次低くなるよう複数個形成されているものである。ま
た、円板状の突起部には、下面に回転軸の回転方向と逆
方向に形成されたねじ山状の螺旋溝部が設けられている
ものである。また、円板状の突起部には、下面に回転軸
の回転方向と逆方向に形成された角状の螺旋溝部が設け
られると共に、螺旋状溝部は外縁部に細溝部が設けられ
ているものである。また、円錐板状の突起部は、下方向
に傾斜して形成されると共に、縁部が尖端状に形成され
ているものである。また、円錐板状の突起部は、下方向
に傾斜して形成されると共に、外周から内側方向に向か
って中空状となる勾配溝部を有し、勾配溝部の底部が袋
状に形成されているものである。
A bearing oil sealing device for a vertical rotating electric machine according to the present invention is a bearing runner arranged in an oil tank in which lubricating oil is stored and fixed to a rotary shaft of the vertical rotating electric machine. And a disk-shaped or conical-shaped projection provided on the outer peripheral portion of the bearing runner to prevent the lubricating oil from leaking out of the oil tank. Further, the disc-shaped protrusion has a V-shaped groove having a wide inner side and a narrow outer side formed on the lower surface. The V-shaped groove is formed such that the inner side is wide and deep and the outer side is narrow and shallow. Further, the disk-shaped protrusion is formed with a first convex portion on the inner side and a second convex portion on the outer peripheral portion having a groove portion in the radial direction on the lower surface along the circumferential direction. The groove is narrower and smaller than the groove of the first convex portion. Further, on the outer peripheral portion of the disk-shaped protrusion, a protrusion having an inward gradient is formed on the lower surface, and a groove is provided at a predetermined position of the gradient protrusion. In addition, the disk-shaped protrusion has a groove that is hollow from the outer circumference toward the inside, and a groove that extends in the circumferential direction at the bottom of the disk-shaped protrusion. It is a thing. Further, a plurality of saw-toothed protrusions are formed on the lower surface of the disc-shaped protrusion so that the heights of the protrusions gradually decrease in the outward direction. In addition, the disk-shaped projection is provided with a screw-shaped spiral groove formed on the lower surface in the direction opposite to the rotation direction of the rotary shaft. In addition, the disk-shaped protrusion is provided with an angular spiral groove formed on the lower surface in a direction opposite to the rotation direction of the rotary shaft, and the spiral groove is provided with a thin groove on the outer edge. Is. Further, the conical plate-shaped protrusion is formed so as to be inclined downward and the edge thereof is formed in a pointed shape. Further, the conical plate-shaped protrusion is formed to be inclined downward, and has a gradient groove portion that becomes hollow from the outer periphery toward the inner side, and the bottom portion of the gradient groove portion is formed in a bag shape. It is a thing.

【0007】[0007]

【発明の実施の形態】BEST MODE FOR CARRYING OUT THE INVENTION

実施の形態1.以下、この発明の一実施の形態である油
浴潤滑式の立形回転電機軸受油封止装置を図について説
明する。図1は本発明の立形回転電機の軸受部の断面
図、図2は図1の円板状の突起部の下面側平面図であ
る。図において、1は軸、2は軸1に固定された筒状の
軸受ランナー、3は軸受ランナー2に内輪が焼嵌めされ
た軸受、4は潤滑用の油、5は油4を溜める円筒状の油
せき、6は軸受3を支承し油4を溜めて油槽を形成する
ブラケット、7は油せき5とブラケット6により形成さ
れた油槽、8は外部に油4が漏出するのを防止するため
の油切り板、9は上昇した油4を油槽7内に戻すために
軸受ランナー2に形成された油戻し穴、10は軸受ラン
ナー2の外周に水平に設けられた円板状の突起部で、油
戻し穴9の上部に形成されている。11は円板状の突起
部10の突出根元部下面側に環状に形成された溝部、1
2は溝部11の外周部から円板状の突起部10の外周部
に連通して形成された内側が広幅で外側が細幅のV字状
溝であり、V字状溝12は所定間隔で複数個形成されて
いる。
Embodiment 1. Hereinafter, an oil bath lubrication type vertical rotating electrical machine bearing oil sealing device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a bearing portion of a vertical rotating electric machine of the present invention, and FIG. 2 is a bottom surface side plan view of the disc-shaped protrusion portion of FIG. In the figure, 1 is a shaft, 2 is a cylindrical bearing runner fixed to the shaft 1, 3 is a bearing whose inner ring is shrink-fitted into the bearing runner 2, 4 is lubricating oil, and 5 is a cylindrical shape for storing oil 4. Of the oil dam, 6 is a bracket that supports the bearing 3 and collects the oil 4 to form an oil tank, 7 is an oil tank formed by the oil dam 5 and the bracket 6, and 8 is to prevent the oil 4 from leaking to the outside. Is an oil draining plate, 9 is an oil return hole formed in the bearing runner 2 for returning the ascended oil 4 into the oil tank 7, and 10 is a disc-shaped protrusion provided horizontally on the outer periphery of the bearing runner 2. Is formed in the upper part of the oil return hole 9. Reference numeral 11 denotes a groove portion formed in an annular shape on the lower surface side of the protruding root portion of the disk-shaped protrusion portion 1,
Reference numeral 2 denotes a V-shaped groove formed by communicating from the outer peripheral portion of the groove portion 11 to the outer peripheral portion of the disk-shaped projection portion 10 and having a wide inner side and a narrow outer side, and the V-shaped grooves 12 are arranged at predetermined intervals. A plurality is formed.

【0008】次に動作について説明する。回転電機を運
転させることにより、軸1および軸1に固定された軸受
ランナー2が回転し、油4は油の粘性と回動による遠心
力で軸受ランナー2と油せき5の隙間を軸受ランナー2
の内周に沿って上昇する。この上昇した油4は軸受ラン
ナー2に形成された複数個の油戻し穴9に達すると遠心
力により油戻し穴9を通り振り飛ばされて油槽7に戻さ
れるが、一部の油4は軸受ランナー2の外周をさらに上
昇して円板状の突起部10の下面に達する。円板状の突
起部10の下面に達した油4は溝部11を経てV字状溝
12から遠心力により振り飛ばされる。この時、V字状
溝12は外側が次第に狭くなっているため、油4は円板
状の突起部10の外側方向に進むに従い油膜が厚くな
り、円板状の突起部10の外縁部では油滴状になるた
め、遠心力による振り切りが容易になる。この発明によ
れば、軸受ランナー2の外周を上昇した油4は、円板状
の突起部10に形成されたV字状溝12で油滴状となり
振り飛ばされるため、油4の振り切りが容易となり、か
つ油4が油霧状となり外部へ漏出するのを防止すること
ができる。
Next, the operation will be described. By operating the rotating electric machine, the shaft 1 and the bearing runner 2 fixed to the shaft 1 rotate, and the oil 4 causes the viscosity of the oil and the centrifugal force due to the rotation to cause the clearance between the bearing runner 2 and the oil dam 5 to pass through the bearing runner 2.
Rises along the inner circumference of. When this raised oil 4 reaches a plurality of oil return holes 9 formed in the bearing runner 2, it is shaken off by the centrifugal force through the oil return holes 9 and returned to the oil tank 7, but some oil 4 is The outer circumference of the runner 2 is further raised to reach the lower surface of the disk-shaped protrusion 10. The oil 4 reaching the lower surface of the disk-shaped protrusion 10 is blown off from the V-shaped groove 12 by the centrifugal force through the groove 11. At this time, since the V-shaped groove 12 is gradually narrowed on the outer side, the oil film becomes thicker as the oil 4 advances toward the outer side of the disk-shaped projection 10, and at the outer edge of the disk-shaped projection 10. The oil drops make it easy to shake off by centrifugal force. According to the present invention, the oil 4 that has risen on the outer circumference of the bearing runner 2 is turned into oil droplets in the V-shaped groove 12 formed in the disk-shaped protrusion 10 and is shaken off. In addition, it is possible to prevent the oil 4 from becoming an oil mist and leaking to the outside.

【0009】実施の形態2.実施の形態1では、円板状
の突起部10のV字状溝12は、内側の広幅部と外側の
細幅部の溝深さを同じにして、溝底面を水平に形成した
ものであるが、図3に示すように、内側を広幅で溝部1
1と同深さに、外側を細幅で浅くし、内側から外側にV
字状溝13底面を勾配状に形成することにより、V字状
溝13内の油4は、外径方向に進むに従い急激に油膜が
厚くなり油滴状となるため、円板状の突起部10の外縁
部での遠心力による振り切りが一層容易になる。
Embodiment 2 In the first embodiment, the V-shaped groove 12 of the disk-shaped protrusion 10 has the same groove depth in the inner wide width portion and the outer narrow width portion, and the groove bottom surface is formed horizontally. However, as shown in FIG.
The depth is the same as 1 and the outside is narrow and shallow, and V from the inside to the outside
By forming the bottom surface of the V-shaped groove 13 in an inclined shape, the oil film 4 in the V-shaped groove 13 suddenly becomes thicker as the oil film progresses in the outer diameter direction and becomes an oil drop shape. Shaking off by centrifugal force at the outer edge of 10 becomes easier.

【0010】実施の形態3.図4および図5は実施の形
態3を示す平面図および断面図である。図において、1
4は円板状の突起部10の下面に形成された周方向に沿
った内側の第一の凸部、15は円板状の突起部10の下
面に形成された周方向に沿った外周部の第二の凸部、1
6は第一の凸部14に径方向に連通し周方向に所定間隔
で複数個形成された溝部、17は第二の凸部15に径方
向に連通し周方向に所定間隔で複数個形成された溝部
で、第二の凸部15の溝部17は第一の凸部14の溝部
16より細幅で溝数が少なくかつ溝部16と直線状に貫
通しない位置に形成されている。他の構成は実施の形態
1と同様である。軸1の回転に伴い実施の形態1と同様
に円板状の突起部10の下面に達した油4は、第一の凸
部14の溝部16から細幅で溝数の少ない第二の凸部1
5の溝部17へ進行する間に油膜が次第に厚くなり油滴
状となって遠心力により振り切られる。
Embodiment 3 4 and 5 are a plan view and a sectional view showing the third embodiment. In the figure, 1
Reference numeral 4 denotes an inner first convex portion formed on the lower surface of the disk-shaped protruding portion 10 along the circumferential direction, and 15 denotes an outer peripheral portion formed on the lower surface of the disk-shaped protruding portion 10 along the circumferential direction. Second convex part of, 1
Reference numeral 6 denotes a groove portion communicating with the first convex portion 14 in the radial direction and formed in plural at predetermined intervals in the circumferential direction. Reference numeral 17 denotes plural groove portions communicating with the second convex portion 15 in the radial direction at predetermined intervals in the circumferential direction. The groove portion 17 of the second convex portion 15 is formed in a position where the groove portion 17 of the second convex portion 15 is narrower than the groove portion 16 of the first convex portion 14 and has a smaller number of grooves and does not penetrate linearly with the groove portion 16. Other configurations are the same as in the first embodiment. The oil 4 that has reached the lower surface of the disk-shaped protrusion 10 in accordance with the rotation of the shaft 1 from the groove 16 of the first protrusion 14 is the second protrusion having a narrow width and a small number of grooves, as in the first embodiment. Part 1
While advancing to the groove portion 17 of No. 5, the oil film gradually becomes thicker and becomes oil drops, and is shaken off by the centrifugal force.

【0011】実施の形態4.図6および図7は実施の形
態4を示す断面図および平面図である。図において、1
8は円板状の突起部10の外周部下面に内側に向かって
形成されたポケット状の勾配部19を有する突起部、2
0は勾配部19の所定位置から外側に向かって斜下の外
縁部に連通する複数個設けられた勾配溝部である。他の
構成は実施の形態1と同様である。軸1の回転に伴い実
施の形態1と同様に円板状の突起部10の下面に達した
油4は、突起部18のポケット状の勾配部19に一旦貯
留され、溢れた少量の油4は勾配溝部20から流出して
油滴状で遠心力により振り切られ、ポケット状の勾配部
19に残された油4は軸1の停止時に流下して油槽7に
戻される。
Embodiment 4. 6 and 7 are a sectional view and a plan view showing a fourth embodiment. In the figure, 1
Reference numeral 8 denotes a protrusion having a pocket-shaped sloped portion 19 formed inwardly on the lower surface of the outer periphery of the disc-shaped protrusion 10.
Reference numeral 0 denotes a plurality of gradient groove portions that communicate with the outer edge portion obliquely downward from a predetermined position of the gradient portion 19 toward the outside. Other configurations are the same as in the first embodiment. The oil 4 that has reached the lower surface of the disk-shaped protrusion 10 in accordance with the rotation of the shaft 1 is temporarily stored in the pocket-shaped slope portion 19 of the protrusion 18 and overflows a small amount of oil 4 as in the first embodiment. Flows out from the gradient groove portion 20 and is shaken off by centrifugal force in the form of oil drops, and the oil 4 left in the pocket-shaped gradient portion 19 flows down when the shaft 1 is stopped and is returned to the oil tank 7.

【0012】実施の形態5.図8は実施の形態5を示す
断面図である。図において、21は円板状の突起部10
の板厚を二分するよう外周面から内側に向かって形成さ
れた中空状の溝部、22は円板状の突起部10の根元部
の下面側に環状に形成された溝部である。他の構成は実
施の形態1と同様である。軸1の回転に伴い実施の形態
1と同様に円板状の突起部10の下面に達した油4は、
溝部22で一旦貯留され油滴状となり、溝部22の外周
部から遠心力により振り切られる。更に振り切られずに
残った油4は、中空状の溝部21の下面を伝わり底部で
上面に移行して再び中空状の溝部21の開口部に進む間
に油膜が厚くなり油滴状となって、円板状の突起部10
の外縁部から遠心力により振り切られる。
Embodiment 5. FIG. 8 is a sectional view showing the fifth embodiment. In the figure, 21 is a disk-shaped protrusion 10
The hollow groove portion is formed from the outer peripheral surface toward the inside so as to divide the plate thickness into two, and 22 is an annular groove portion formed on the lower surface side of the root portion of the disk-shaped protrusion 10. Other configurations are the same as in the first embodiment. The oil 4 that has reached the lower surface of the disk-shaped protrusion 10 as in Embodiment 1 as the shaft 1 rotates is
It is once stored in the groove portion 22 and becomes an oil drop shape, and is shaken off from the outer peripheral portion of the groove portion 22 by centrifugal force. The oil 4 that is not shaken off further propagates on the lower surface of the hollow groove portion 21 and moves to the upper surface at the bottom portion, and while proceeding to the opening portion of the hollow groove portion 21, the oil film becomes thicker and becomes oil drops. Disc-shaped protrusion 10
It is shaken off by the centrifugal force from the outer edge of.

【0013】実施の形態6.図9は実施の形態6を示す
断面図である。図において、23、24、25は円板上
の突起部10の下面に環状に形成された内側から第一の
鋸歯状の突起部、第二の鋸歯状の突起部、第三の鋸歯状
の突起部であり、突起部の高さは、内側から外側に順次
低くなるよう形成されている。他の構成は実施の形態1
と同様である。軸1の回転に伴い実施の形態1と同様に
円板状の突起部10の下面に達した油4は、鋸歯状の突
起部へ進む間に油膜が厚くなって油滴状となり、まず第
一の鋸歯状の突起部23の尖端部で遠心力により振り切
られ、更に振り切られずに残った油4は第二の鋸歯状の
突起部24、および第三の鋸歯状の突起部25の尖端部
から遠心力によって振り切られる。この時第一、第二、
第三の鋸歯状の突起部23、24、25の高さは外側方
向に順次低くなるよう形成されているので、振り切られ
た油4が他の鋸歯状突起部に再付着することを防止でき
る。
Embodiment 6. FIG. 9 is a sectional view showing the sixth embodiment. In the figure, reference numerals 23, 24, and 25 denote first sawtooth-shaped protrusions, second sawtooth-shaped protrusions, and third sawtooth-shaped protrusions formed on the lower surface of the protrusions 10 on the disc from the inside. The protrusions are formed so that the height of the protrusions gradually decreases from the inside to the outside. Other configurations are the same as those of the first embodiment.
Is the same as As in the case of the first embodiment, as the shaft 1 rotates, the oil 4 that has reached the lower surface of the disk-shaped protrusion 10 thickens the oil film while advancing to the sawtooth-shaped protrusion, and becomes an oil droplet. The oil 4 which was shaken off by the centrifugal force at the tip of the one sawtooth-shaped projection 23 and remained without being shaken off is the tip of the second sawtooth-shaped projection 24 and the third sawtooth-shaped projection 25. It is shaken off by centrifugal force. At this time, first, second,
Since the heights of the third serrated protrusions 23, 24, 25 are formed so as to gradually decrease in the outward direction, it is possible to prevent the oil 4 that has been shaken off from reattaching to other serrated protrusions. .

【0014】実施の形態7.図10は実施の形態7を示
す断面図である。図において、26は円板状の突起部1
0の下面に軸1の回転方向と逆方向に形成されたねじ山
状の螺旋溝部である。他の構成は実施の形態1と同様で
ある。軸1の回転に伴い実施の形態1と同様に円板状の
突起部10の下面に達した油4は、ねじ山状の螺旋溝部
26に沿って外側に向かって進行するが、螺旋方向が回
転方向と逆方向であるため、油膜の進行に抵抗が生じ厚
膜化して油滴状となり、円板状の突起部10の外周部に
あるねじ山状の螺旋溝部26の開口部から遠心力により
振り切られる。
Embodiment 7. FIG. 10 is a sectional view showing the seventh embodiment. In the figure, 26 is a disk-shaped protrusion 1.
No. 0 is a screw-shaped spiral groove portion formed on the lower surface of 0 in the direction opposite to the rotation direction of the shaft 1. Other configurations are the same as in the first embodiment. The oil 4 that has reached the lower surface of the disk-shaped protrusion 10 along with the rotation of the shaft 1 advances outward along the screw-shaped spiral groove 26, but the spiral direction is Since it is in the opposite direction to the rotation direction, resistance to the progress of the oil film causes a thick film to form an oil drop, and a centrifugal force is applied from the opening of the screw-shaped spiral groove portion 26 on the outer peripheral portion of the disk-shaped protrusion 10. Shaken off by.

【0015】実施の形態8.図11および図12は実施
の形態8を示す断面図および平面図である。図におい
て、27は円板状の突起部10の下面に軸1の回転方向
と逆方向に形成された角状の螺旋溝部、28は円板状の
突起部10の外周部にある角状の螺旋溝部27の開口部
に形成された突起部、29は突起部28により形成され
た角状の螺旋溝部27の細溝部である。他の構成は実施
の形態1と同様である。軸1の回転に伴い実施の形態1
と同様に円盤状突起部10の下面に達した油4は、角状
の螺旋溝部27に沿って円板状の突起部10の外周方向
に進行するが、螺旋方向が回転方向と逆方向であるた
め、油膜の進行に抵抗が生じ、更に細溝部29を通過す
ることにより急激に油膜が厚くなり油滴状となって遠心
力により振り切られる。
Embodiment 8. 11 and 12 are a sectional view and a plan view showing an eighth embodiment. In the figure, 27 is an angular spiral groove formed on the lower surface of the disk-shaped projection 10 in the direction opposite to the rotation direction of the shaft 1, and 28 is an angular spiral on the outer periphery of the disk-shaped projection 10. A protrusion formed on the opening of the spiral groove 27, and 29 is a narrow groove of the angular spiral groove 27 formed by the protrusion 28. Other configurations are the same as in the first embodiment. Embodiment 1 with the rotation of the shaft 1
Similarly to the above, the oil 4 reaching the lower surface of the disk-shaped protrusion 10 advances in the outer peripheral direction of the disk-shaped protrusion 10 along the angular spiral groove 27, but the spiral direction is opposite to the rotation direction. Therefore, there is a resistance to the progress of the oil film, and when the oil film further passes through the narrow groove portion 29, the oil film suddenly becomes thick and becomes oil drops, which are shaken off by the centrifugal force.

【0016】実施の形態9.図13は実施の形態9を示
す断面図である。図において、30は軸受ランナー2の
外周に下方向に傾斜させて設けられた円錐板状の突起
部、31は円錐板状の突起部30の円錐下端部の尖端状
縁部で、尖端状縁部31は図1に示す油戻し穴9より上
方になるよう形成されている。他の構成は実施の形態1
と同様である。軸1の回転に伴い実施の形態1と同様に
軸受ランナー2の外周を上昇した油4は、円錐板状の突
起部30の内面を伝わり尖端状縁部31で遠心力により
振り切られる。
Ninth Embodiment FIG. 13 is a sectional view showing the ninth embodiment. In the figure, reference numeral 30 denotes a conical plate-shaped projection provided on the outer periphery of the bearing runner 2 in a downwardly inclined manner, 31 denotes a pointed edge of the conical lower end of the conical plate-shaped projection 30, and a pointed edge. The portion 31 is formed so as to be located above the oil return hole 9 shown in FIG. Other configurations are the same as those of the first embodiment.
Is the same as The oil 4 that has risen along the outer circumference of the bearing runner 2 as the shaft 1 rotates in the same manner as in the first embodiment travels along the inner surface of the conical plate-shaped projection 30 and is shaken off by the pointed edge 31.

【0017】実施の形態10.図14は実施の形態10
を示す断面図である。図において、30は軸受ランナー
2の外周に下方向に傾斜させて設けられた円錐板状の突
起部で、先端が図1に示す油戻し穴9の上部に形成され
ている。32は円錐板状の突起部30の板厚を二分する
よう外周面から円錐面に沿って円錐の上部方向に形成さ
れた中空状の勾配溝部、33は勾配溝部32の底部に形
成された袋状の溝底部である。他の構成は実施の形態1
と同様である。軸1の回転に伴い実施の形態1と同様に
軸受ランナー2の外周を上昇した油4は、円錐板状の突
起部30の内面を伝わり、まず円錐板状の突起部30の
下端部で遠心力により振り切られ、更に振り切られずに
残った油4は、中空状の勾配溝部32の下面を遠心力に
抗して上昇し、袋状の溝底部33に貯留される。更に袋
状の溝底部33から溢れた油4は中空状の勾配溝部32
の上面を伝わり中空状の勾配溝部32の開口部から遠心
力により振り切られる。なお、袋状の溝底部33に貯留
された油4は軸1の停止時に流下して油槽7に戻され
る。
Embodiment 10. FIG. 14 shows the tenth embodiment.
FIG. In the figure, reference numeral 30 denotes a conical plate-like projection provided on the outer periphery of the bearing runner 2 so as to be inclined downward, and its tip is formed above the oil return hole 9 shown in FIG. 32 is a hollow gradient groove formed in the upper part of the cone from the outer peripheral surface along the conical surface so as to divide the plate thickness of the conical plate-shaped protrusion 30 in half, and 33 is a bag formed at the bottom of the gradient groove 32. The bottom of the groove. Other configurations are the same as those of the first embodiment.
Is the same as The oil 4 that has risen on the outer circumference of the bearing runner 2 in accordance with the rotation of the shaft 1 propagates along the inner surface of the conical plate-shaped protrusion 30 and is first centrifuged at the lower end of the conical plate-shaped protrusion 30. The oil 4 which is shaken off by the force and which is not shaken off further rises against the lower surface of the hollow gradient groove 32 against centrifugal force and is stored in the bag-shaped groove bottom 33. Further, the oil 4 overflowing from the bag-shaped groove bottom 33 is filled with the hollow gradient groove 32.
Is transmitted by the centrifugal force from the opening of the hollow gradient groove portion 32. The oil 4 stored in the bag-shaped groove bottom 33 flows down when the shaft 1 is stopped and is returned to the oil tank 7.

【0018】[0018]

【発明の効果】以上のように、この発明によれば、軸受
ランナーの外周に径方向に突出する様々な形状の円板状
あるいは円錐板状の突起部を形成することにより、油膜
の進行に抵抗を生じさせ、油膜を厚膜化して油滴状に
し、遠心力の作用を大きくして振り切りを容易にするこ
とができる。更に振り切り部を尖端化することにより油
切りを容易にすることができる。また突起部に油の貯留
部を形成することにより、回転中に振り切る油の量を少
量化することができる。この結果、軸受部の油が外部に
漏出しない立形回転電機の軸受油封止装置を提供するこ
とができる。
As described above, according to the present invention, by forming the disc-shaped or conical-plate-shaped projections of various shapes radially protruding on the outer periphery of the bearing runner, the progress of the oil film can be improved. Resistance can be generated, the oil film can be thickened to form oil drops, and the action of centrifugal force can be increased to facilitate shaking off. Further, by making the shake-off portion pointed, it is possible to facilitate oil removal. Further, by forming the oil storage portion on the protrusion, it is possible to reduce the amount of oil shaken off during rotation. As a result, it is possible to provide a bearing oil sealing device for a vertical rotating electric machine in which oil in the bearing portion does not leak outside.

【図面の簡単な説明】[Brief description of drawings]

【図1】 この発明の実施の形態1による立形回転電機
の軸受部を示す断面図である。
FIG. 1 is a sectional view showing a bearing portion of a vertical rotating electric machine according to Embodiment 1 of the present invention.

【図2】 この発明の実施の形態1による軸受油封止装
置の円板状突起部を示す平面図である。
FIG. 2 is a plan view showing a disk-shaped protrusion of the bearing oil sealing device according to the first embodiment of the present invention.

【図3】 この発明の実施の形態2による軸受油封止装
置の円板状突起部を示す断面図である。
FIG. 3 is a sectional view showing a disk-shaped protrusion of a bearing oil sealing device according to a second embodiment of the present invention.

【図4】 この発明の実施の形態3による軸受油封止装
置の円板状突起部を示す平面図である。
FIG. 4 is a plan view showing a disk-shaped protrusion of a bearing oil sealing device according to a third embodiment of the present invention.

【図5】 この発明の実施の形態3による軸受油封止装
置の円板状突起部を示す断面図である。
FIG. 5 is a sectional view showing a disk-shaped protrusion of a bearing oil sealing device according to a third embodiment of the present invention.

【図6】 この発明の実施の形態4による軸受油封止装
置の円板状突起部を示す断面図である。
FIG. 6 is a sectional view showing a disk-shaped protrusion of a bearing oil sealing device according to a fourth embodiment of the present invention.

【図7】 この発明の実施の形態4による軸受油封止装
置の円板状突起部を示す平面図である。
FIG. 7 is a plan view showing a disk-shaped protrusion of a bearing oil sealing device according to a fourth embodiment of the present invention.

【図8】 この発明の実施の形態5による軸受油封止装
置の円板状突起部を示す断面図である。
FIG. 8 is a sectional view showing a disk-shaped protrusion of a bearing oil sealing device according to a fifth embodiment of the present invention.

【図9】 この発明の実施の形態6による軸受油封止装
置の円板状突起部を示す断面図である。
FIG. 9 is a sectional view showing a disk-shaped protrusion of a bearing oil sealing device according to a sixth embodiment of the present invention.

【図10】 この発明の実施の形態7による軸受油封止
装置の円板状突起部を示す断面図である。
FIG. 10 is a sectional view showing a disk-shaped protrusion of a bearing oil sealing device according to a seventh embodiment of the present invention.

【図11】 この発明の実施の形態8による軸受油封止
装置の円板状突起部を示す断面図である。
FIG. 11 is a sectional view showing a disk-shaped protrusion of a bearing oil sealing device according to an eighth embodiment of the present invention.

【図12】 この発明の実施の形態8による軸受油封止
装置の円板状突起部を示す平面図である。
FIG. 12 is a plan view showing a disk-shaped protrusion of a bearing oil sealing device according to an eighth embodiment of the present invention.

【図13】 この発明の実施の形態9による軸受油封止
装置の円錐板状突起部を示す断面図である。
FIG. 13 is a sectional view showing a conical plate-shaped projection portion of a bearing oil sealing device according to Embodiment 9 of the present invention.

【図14】 この発明の実施の形態10による軸受油封
止装置の円錐板状突起部を示す断面図である。
FIG. 14 is a sectional view showing a conical plate-shaped projection portion of a bearing oil sealing device according to a tenth embodiment of the present invention.

【図15】 従来のこの種軸受部の軸受油封止装置を示
す断面図である。
FIG. 15 is a cross-sectional view showing a conventional bearing oil sealing device for this type of bearing.

【符号の説明】[Explanation of symbols]

1 軸、2 軸受ランナー、3 軸受、4 油、5 油
せき、6 ブラケット、7 油槽、8 油切り板、9
油戻し穴、10 円板状の突起部、11 溝部、12
V状溝、13 勾配V状溝、14 第一の凸部、15
第二の凸部、16 第一の溝部、17 第二の溝部、1
8 突起部、19 勾配部、20 勾配溝部、21 中
空状の溝部、22 溝部、23 第一の鋸歯状の突起
部、24 第二の鋸歯状の突起部、25 第三の鋸歯状
の突起部、26 ねじ山状の螺旋溝部、27 角状の螺
旋溝部、28 突起部、29 細溝部、30 円錐板状
の突起部、31 尖端状縁部、32 勾配溝部、33
袋状の溝底部。
1 shaft, 2 bearing runner, 3 bearing, 4 oil, 5 oil dam, 6 bracket, 7 oil tank, 8 oil drainer plate, 9
Oil return hole, 10 disk-shaped protrusion, 11 groove, 12
V-shaped groove, 13 Gradient V-shaped groove, 14 First convex portion, 15
2nd convex part, 16 1st groove part, 17 2nd groove part, 1
8 Protrusions, 19 Gradients, 20 Gradient Grooves, 21 Hollow Grooves, 22 Grooves, 23 1st Serrated Protrusions, 24 2nd Serrated Protrusions, 25 3rd Serrated Protrusions , 26 screw-shaped spiral groove portion, 27 angular spiral groove portion, 28 protrusion portion, 29 narrow groove portion, 30 conical plate-shaped protrusion portion, 31 pointed edge portion, 32 gradient groove portion, 33
Bag-shaped groove bottom.

Claims (11)

【特許請求の範囲】[Claims] 【請求項1】 潤滑油が貯留された油槽中に配設され、
立形回転電機の回転軸に固定された軸受ランナー、上記
軸受ランナーの外周部に設けられた円板状あるいは円錐
板状の突起部を備え、上記潤滑油の上記油槽外への漏出
を防止することを特徴とする立形回転電機の軸受油封止
装置。
1. Arranged in an oil tank in which lubricating oil is stored,
A bearing runner fixed to the rotary shaft of a vertical rotating electric machine and a disk-shaped or conical-plate-shaped projection provided on the outer peripheral portion of the bearing runner are provided to prevent the lubricating oil from leaking out of the oil tank. A bearing oil sealing device for a vertical rotating electric machine, comprising:
【請求項2】 円板状の突起部には、下面に内側が広幅
で外側が細幅のV字状溝が形成されていることを特徴と
する請求項1記載の立形回転電機の軸受油封止装置
2. The bearing of a vertical rotating electric machine according to claim 1, wherein the disk-shaped protrusion has a V-shaped groove having a wide inner side and a narrow outer side formed on the lower surface. Oil sealing device
【請求項3】 V字状溝は、内側が広幅で深く、外側が
細幅で浅く形成されていることを特徴とする請求項2記
載の立形回転電機の軸受油封止装置。
3. The bearing oil sealing device for a vertical rotating electric machine according to claim 2, wherein the V-shaped groove is formed such that the inside is wide and deep and the outside is narrow and shallow.
【請求項4】 円板状の突起部には、下面に径方向に溝
部を有する周方向に沿った内側の第一の凸部と外周部の
第二の凸部が形成され、上記第二の凸部の溝部は上記第
一の凸部の溝部より細幅でかつ少数であることを特徴と
する請求項1記載の立形回転電機の軸受油封止装置。
4. The disk-shaped projection is formed with a first projection on the inner side and a second projection on the outer circumference along the circumferential direction having a groove on the lower surface in the radial direction. The bearing oil sealing device for a vertical rotating electric machine according to claim 1, wherein the groove portion of the convex portion is narrower and smaller than the groove portion of the first convex portion.
【請求項5】 円板状の突起部の外周部には、下面に内
側方向への勾配を有する突起部が形成され、上記勾配を
有する突起部の所定位置には溝が設けられていることを
特徴とする請求項1記載の立形回転電機の軸受油封止装
置。
5. A disc-shaped protrusion has an outer peripheral portion formed with a protrusion having an inward slope on the lower surface, and a groove is provided at a predetermined position of the sloped protrusion. The bearing oil sealing device for a vertical rotating electric machine according to claim 1, wherein
【請求項6】 円板状の突起部には、外周から内側方向
に向かって中空状となる溝部と、上記円板状の突起部の
下面側の突出根元部に周方向に沿った溝部が形成されて
いることを特徴とする請求項1記載の立形回転電機の軸
受油封止装置。
6. The disc-shaped protrusion has a groove portion that is hollow from the outer periphery toward the inner side, and a groove portion that extends in the circumferential direction at the bottom of the protrusion of the disc-shaped protrusion portion. The bearing oil sealing device for a vertical rotating electric machine according to claim 1, wherein the bearing oil sealing device is formed.
【請求項7】 円板状の突起部には、下面に鋸歯状の突
起部が高さが外側方向に順次低くなるよう複数個形成さ
れていることを特徴とする請求項1記載の立形回転電機
の軸受油封止装置。
7. The vertical shape according to claim 1, wherein the disk-shaped protrusion has a plurality of saw-tooth-shaped protrusions formed on the lower surface thereof so that the heights of the protrusions gradually decrease in the outward direction. Bearing oil sealing device for rotating electrical machines.
【請求項8】 円板状の突起部には、下面に回転軸の回
転方向と逆方向に形成されたねじ山状の螺旋溝部が設け
られていることを特徴とする請求項1記載の立形回転電
機の軸受油封止装置。
8. The standing member according to claim 1, wherein the disk-shaped protrusion is provided with a screw-shaped spiral groove formed on the lower surface in a direction opposite to the rotation direction of the rotation shaft. Bearing oil sealing device for rotary electric machines.
【請求項9】 円板状の突起部には、下面に回転軸の回
転方向と逆方向に形成された角状の螺旋溝部が設けられ
ると共に、この螺旋状溝部は外縁部に細溝部が設けられ
ていることを特徴とする請求項1記載の立形回転電機の
軸受油封止装置。
9. The disc-shaped protrusion is provided with an angular spiral groove formed on the lower surface in a direction opposite to the rotation direction of the rotary shaft, and the spiral groove is provided with a thin groove at the outer edge. The bearing oil sealing device for a vertical rotating electric machine according to claim 1, wherein the bearing oil sealing device is provided.
【請求項10】 円錐板状の突起部は、下方向に傾斜し
て形成されると共に、縁部が尖端状に形成されているこ
とを特徴とする請求項1記載の立形回転電機の軸受油封
止装置。
10. The bearing for a vertical rotating electric machine according to claim 1, wherein the conical plate-shaped projection is formed so as to be inclined downward and the edge is formed in a pointed shape. Oil sealing device.
【請求項11】 円錐板状の突起部は、下方向に傾斜し
て形成されると共に、外周から内側方向に向かって中空
状となる勾配溝部を有し、この勾配溝部の底部が袋状に
形成されていることを特徴とする請求項1記載の立形回
転電機の軸受油封止装置。
11. The conical plate-shaped projection is formed so as to be inclined downward, and has a sloped groove portion that is hollow from the outer periphery toward the inner side, and the bottom portion of this sloped groove portion has a bag shape. The bearing oil sealing device for a vertical rotating electric machine according to claim 1, wherein the bearing oil sealing device is formed.
JP10771696A 1996-04-26 1996-04-26 Bearing oil sealing device for vertical rotating electric machine Pending JPH09298856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10771696A JPH09298856A (en) 1996-04-26 1996-04-26 Bearing oil sealing device for vertical rotating electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10771696A JPH09298856A (en) 1996-04-26 1996-04-26 Bearing oil sealing device for vertical rotating electric machine

Publications (1)

Publication Number Publication Date
JPH09298856A true JPH09298856A (en) 1997-11-18

Family

ID=14466143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10771696A Pending JPH09298856A (en) 1996-04-26 1996-04-26 Bearing oil sealing device for vertical rotating electric machine

Country Status (1)

Country Link
JP (1) JPH09298856A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009168140A (en) * 2008-01-16 2009-07-30 Jtekt Corp Rolling bearing device
CN102107270A (en) * 2010-12-24 2011-06-29 揭阳市天诚密封件有限公司 Method for producing irregular-shaped oil seal framework

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009168140A (en) * 2008-01-16 2009-07-30 Jtekt Corp Rolling bearing device
CN102107270A (en) * 2010-12-24 2011-06-29 揭阳市天诚密封件有限公司 Method for producing irregular-shaped oil seal framework

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