JPH0735144A - Bearing unit - Google Patents

Bearing unit

Info

Publication number
JPH0735144A
JPH0735144A JP17667293A JP17667293A JPH0735144A JP H0735144 A JPH0735144 A JP H0735144A JP 17667293 A JP17667293 A JP 17667293A JP 17667293 A JP17667293 A JP 17667293A JP H0735144 A JPH0735144 A JP H0735144A
Authority
JP
Japan
Prior art keywords
oil
rolling bearing
partition wall
hole
chamber
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.)
Granted
Application number
JP17667293A
Other languages
Japanese (ja)
Other versions
JP3315480B2 (en
Inventor
Kenji Yamaguchi
賢治 山口
Hirotaka Inada
洋孝 稲田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 filed Critical Mitsubishi Electric Corp
Priority to JP17667293A priority Critical patent/JP3315480B2/en
Publication of JPH0735144A publication Critical patent/JPH0735144A/en
Application granted granted Critical
Publication of JP3315480B2 publication Critical patent/JP3315480B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To prevent an oil leakage and a bearing temperature rise from occurring by staving off a splash produced in a first cell penetrating into a second cell with a partition wall of a bearing unit, while receiving a flow of the splash stuck to a a side wall of the first cell through a guide groove and through hole formed in this side wall of the first cell and then discharging it to the second cell. CONSTITUTION:This bearing unit is provided with a partition wall 13 formed with two through holes 13a at a specified interval in parallel with a rolling bear 2, and passing through a turning shaft 1 in a nearly central part, and two interconnecting holes 13b at the lower part. In addition, a first cell 14 with an oil sump housing lubricating oil 10 dipping a lower part of the bearing 2 and a second cell 15 with an oil tank connected to the first cell 14 at the side different from the first cell 14 via the interconnecting hole 13b at the lower side, is installed in space between the rolling bearing 2 and the partition wall 13. With this constitution, a splash 10b of the lubricating oil 10 is restrained from penetrating into the second cell 15 and, what is more, any possible oil sticking to the turning shaft 1 and an oil leakage can be prevented from occurring. In this connection, the lubricating oil 10 is discharged to the second cell 15 by a guide groove 17 and another through hole 16, thereby keeping off a temperature rise in this way.

Description

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

【0001】[0001]

【産業上の利用分野】この発明は、回転電機等の軸受装
置に係わり、特に潤滑油の温度上昇及び油漏れを防止す
る構造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 device such as a rotary electric machine, and more particularly to a structure for preventing a temperature rise and oil leakage of lubricating oil.

【0002】[0002]

【従来の技術】図11は従来の回転電機の軸受装置を示す
断面図、図12は図11中のXII−XII線に沿った断面図であ
る。各図において、1は回転軸、2は回転軸1を支承す
るころがり軸受で、内輪2aと外輪2b間に回転自在に
配置された転動体2cにより形成されている。3は内輪
2aを回転軸1に固着する締付ナット、4はほぼ円筒状
に形成され軸方向の両端に側壁4a、4bを有する軸受
ハウジング(以下ハウジングという)、4c、4dは側
壁4a、4bに設けられ回転軸1が貫通された貫通穴
で、回転軸1と所定の間隙を形成している。5はハウジ
ング4の軸方向のほぼ中央部に下側に所定の肉厚で形成
され外輪2bが固着される軸受固着部、6は軸受固着部
5の両側に所定の高さでころがり軸受2側に油溜め7、
異なる側に油槽8を形成する仕切り、9は仕切り6の下
側に形成され油溜め7と油槽8とを接続する連通穴、10
は油槽8に充填された潤滑油で、連通穴9を介して油溜
め7に流入した潤滑油10がころがり軸受2の転動体2c
を浸すようにされている。11はハウジング4の径方向の
側壁を貫通して気密に配置され、潤滑油10の油面を目視
可能なオイルゲージである。
2. Description of the Related Art FIG. 11 is a sectional view showing a conventional bearing device for a rotary electric machine, and FIG. 12 is a sectional view taken along line XII-XII in FIG. In each figure, 1 is a rotating shaft, 2 is a rolling bearing which supports the rotating shaft 1, and is formed by a rolling element 2c rotatably arranged between an inner ring 2a and an outer ring 2b. Reference numeral 3 is a tightening nut for fixing the inner ring 2a to the rotary shaft 1, 4 is a bearing housing (hereinafter referred to as a housing) having a substantially cylindrical shape and side walls 4a and 4b at both ends in the axial direction, 4c and 4d are side walls 4a and 4b. And a predetermined gap is formed between the rotary shaft 1 and the rotary shaft 1. Reference numeral 5 denotes a bearing fixing portion which is formed at a substantially central portion in the axial direction of the housing 4 at a lower side with a predetermined thickness and to which the outer ring 2b is fixed, and 6 has a predetermined height on both sides of the bearing fixing portion 5 at the rolling bearing 2 side. Oil sump 7,
A partition forming the oil tank 8 on a different side, 9 is a communication hole formed below the partition 6 and connecting the oil sump 7 and the oil tank 8,
Is the lubricating oil filled in the oil tank 8, and the lubricating oil 10 flowing into the oil sump 7 via the communication hole 9 is the rolling element 2c of the rolling bearing 2.
Is soaked. Reference numeral 11 denotes an oil gauge which is arranged in an airtight manner by penetrating a radial side wall of the housing 4 and allows the oil level of the lubricating oil 10 to be visually observed.

【0003】次に動作について説明する。上記のように
構成された回転電機の軸受装置は、回転軸1ところがり
軸受2の内輪2aとは一体に回転し、この内輪2aの回
転により転動体2cは、回転しながら内輪2aに沿って
周方向に回転されることにより、油溜め7中の潤滑油10
に浸された転動体2cによって、回転軸1の回転中にこ
ろがり軸受2の潤滑が行われる。このころがり軸受2の
潤滑が行われるとき、図示のように、周方向に回転され
る転動体2cによって、油溜め7内の潤滑油8は攪拌さ
れ、飛沫10aとなって締付ナット3と仕切り6間から油
槽8の潤滑油10の油面Aに落下する。また、転動体2c
に付着した潤滑油10は転動体2cの周方向の回転により
振り払われ、飛沫8bとなって飛散し油槽8内の油面A
に落下する。このように、回転軸1の回転によってころ
がり軸受2を潤滑する油溜め7中の潤滑油9は消費され
るので、連通穴9を介して油槽8から油溜め7へ潤滑油
10が補給される。
Next, the operation will be described. The bearing device for a rotary electric machine configured as described above rotates integrally with the inner ring 2a of the rotating shaft 1 and the rolling bearing 2, and the rolling element 2c rotates along the inner ring 2a by the rotation of the inner ring 2a. By rotating in the circumferential direction, the lubricating oil 10 in the oil sump 7
The rolling element 2 c dipped in the bearing lubricates the rolling bearing 2 while the rotating shaft 1 is rotating. When the rolling bearing 2 is lubricated, as shown in the drawing, the rolling element 2c that is rotated in the circumferential direction agitates the lubricating oil 8 in the oil sump 7 to form droplets 10a, which are separated from the tightening nut 3 and the partition wall. From between 6 falls on the oil surface A of the lubricating oil 10 in the oil tank 8. In addition, the rolling element 2c
Lubricating oil 10 attached to the oil is shaken off by the rotation of the rolling element 2c in the circumferential direction, and becomes a droplet 8b to be scattered and the oil surface A in the oil tank 8 is scattered.
To fall. In this way, the lubricating oil 9 in the oil sump 7 that lubricates the rolling bearing 2 is consumed by the rotation of the rotating shaft 1, so that the lubricating oil is transferred from the oil tank 8 to the oil sump 7 via the communication hole 9.
10 is replenished.

【0004】[0004]

【発明が解決しようとする課題】従来の回転電機の軸受
装置は以上のように構成されているので、回転軸1の回
転で周方向に回転される転動体2cによって発生された
潤滑油10の飛沫10bが回転軸1と接触し、ハウジング4
の回転軸1と貫通穴4c、4dとの間隙から外部に泌み
でる油漏れが発生する。また、飛沫10bのうち油槽8へ
排出されずに再び油溜め7へ戻る飛沫10bにより、油溜
め7内の潤滑油10の温度が上昇し、ころがり軸受2の冷
却が十分に行われなくなる等の問題点があった。
Since the conventional bearing device of the rotary electric machine is constructed as described above, the lubricating oil 10 generated by the rolling element 2c which is rotated in the circumferential direction by the rotation of the rotary shaft 1 is used. The droplet 10b comes into contact with the rotating shaft 1 and the housing 4
Oil leaks to the outside from the gap between the rotary shaft 1 and the through holes 4c and 4d. Moreover, the temperature of the lubricating oil 10 in the oil reservoir 7 rises due to the droplet 10b returning to the oil reservoir 7 without being discharged to the oil tank 8 in the oil droplet 8b, and the rolling bearing 2 is not sufficiently cooled. There was a problem.

【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、ハウジングからの油漏れを防止
し、ころがり軸受の温度上昇を防止することができる回
転電機の軸受装置を得ることを目的とする。
The present invention has been made to solve the above problems, and provides a bearing device for a rotary electric machine capable of preventing oil leakage from the housing and preventing the temperature rise of the rolling bearing. With the goal.

【0006】[0006]

【課題を解決するための手段】この発明の請求項1に係
わる軸受装置は、回転軸に締付ナットで固着され回転軸
を支承するころがり軸受、ころがり軸受を収容するハウ
ジング、ころがり軸受と平行に所定の間隔をあけて設け
られかつほぼ中央部に回転軸が貫通する貫通穴と下側部
に連通穴が形成された仕切り壁、ころがり軸受と仕切り
壁間に形成され下側にころがり軸受の下部を浸漬する潤
滑油を収容する油溜めが形成された第1の器室、仕切り
壁の第1の器室と異なる側に形成され下側に連通穴を介
して第1の器室と接続された油槽を有する第2の器室、
仕切り壁に潤滑油の油面と間隔をあけ第1の器室の側壁
に一部が重なるように形成された貫通穴、第1の器室の
内壁の貫通穴と対応する位置に形成された案内溝を備え
たものである。
According to a first aspect of the present invention, there is provided a bearing device which is fixed to a rotary shaft with a tightening nut to support the rotary shaft, a housing which houses the rolling bearing, and a roller bearing which is parallel to the rotary bearing. A partition wall with a through hole through which the rotary shaft penetrates at a certain interval and a communication hole in the lower part, and a lower part of the rolling bearing formed between the rolling bearing and the partition wall. A first container chamber in which an oil sump for containing a lubricating oil is formed, the partition wall is formed on a side different from the first container chamber, and is connected to the first container chamber on the lower side through a communication hole. Second chamber with an oil tank,
A through hole formed in the partition wall so as to be spaced from the oil surface of the lubricating oil so as to partially overlap the side wall of the first chamber, and formed at a position corresponding to the through hole in the inner wall of the first chamber. It is provided with a guide groove.

【0007】また、この発明の請求項2に係わる軸受装
置は、回転軸に締付ナットで固着され回転軸を支承する
ころがり軸受、ころがり軸受を収容するハウジング、こ
ろがり軸受と平行に所定の間隔をあけて設けられかつほ
ぼ中央部に回転軸が貫通する貫通穴と下側部に連通穴と
が形成された仕切り壁、ころがり軸受と仕切り壁間に形
成され下側にころがり軸受の下部を浸漬する潤滑油を収
容する油溜めが形成された第1の器室、仕切り壁の第1
の器室と異なる側に形成され下側に連通穴を介して第1
の器室と接続された油槽を有する第2の器室、仕切り壁
に潤滑油の油面と間隔をあけ第1の器室の側壁に一部が
重なるように形成された貫通穴、第1の器室の内壁の貫
通穴と対応する位置に形成された案内溝、及び案内溝の
下部に案内溝に沿って突設された案内堰を備えたもので
ある。
According to a second aspect of the present invention, there is provided a bearing device which is fixed to the rotary shaft with a tightening nut to support the rotary shaft, a housing which houses the rolling bearing, and a predetermined interval in parallel with the rolling bearing. A partition wall provided with a through hole through which the rotary shaft penetrates and a communication hole is formed in the lower part in the center, and between the rolling bearing and the partition wall, the lower part of the rolling bearing is immersed in the lower part. A first container chamber in which an oil sump for containing lubricating oil is formed, a first partition wall
It is formed on the side different from the chamber of the
A second chamber having an oil tank connected to the first chamber, a through hole formed in the partition wall at a distance from the oil surface of the lubricating oil so as to partially overlap the side wall of the first chamber, The guide groove is formed at a position corresponding to the through hole of the inner wall of the container chamber, and the guide weir is provided below the guide groove so as to project along the guide groove.

【0008】また、この発明の請求項3に係わる軸受装
置は、回転軸に締付ナットで固着され回転軸を支承する
ころがり軸受、ころがり軸受を収容するハウジング、こ
ろがり軸受と平行に所定の間隔をあけて設けられ、か
つ、ほぼ中央部に回転軸が貫通する貫通穴と下側部に連
通穴とが形成された仕切り壁、貫通穴からころがり軸受
側に回転軸を覆うように延在する油切り、ころがり軸受
と仕切り壁間に形成され下側にころがり軸受の下部を浸
漬する潤滑油を収容する油溜めが形成された第1の器
室、仕切り壁の第1の器室と異なる側に形成され下側に
連通穴を介して第1の器室と接続された油槽を有する第
2の器室、仕切り壁に潤滑油の油面と間隔をあけ第1の
器室の側壁に一部が重なるように形成された貫通穴、第
1の器室の内壁の貫通穴と対応する位置に形成された案
内溝を備えたものである。
According to a third aspect of the present invention, there is provided a bearing device, which is fixed to the rotary shaft with a tightening nut to support the rotary shaft, a housing for housing the rolling bearing, and a predetermined interval in parallel with the rolling bearing. A partition wall that is provided separately and has a through hole through which the rotary shaft penetrates in the substantially central part and a communication hole in the lower part, and oil that extends from the through hole to the rolling bearing side so as to cover the rotary shaft. On the side different from the first chamber of the partition wall, which is formed between the rolling and rolling bearing and the partition wall, and on the lower side of which is formed the oil reservoir for containing the lubricating oil that dips the lower part of the rolling bearing. A second chamber having an oil tank formed below and connected to the first chamber via a communication hole, a part of the side wall of the first chamber having a space between the partition wall and the oil surface of the lubricating oil Through holes formed so that they overlap, through the inner wall of the first chamber Those having a guide groove formed at a position corresponding to the.

【0009】また、この発明の請求項4による軸受装置
は、仕切り壁を締付ナットに近接させるとともに油切り
で締付ナットの外周を覆うようにしたものである。
Further, in a bearing device according to a fourth aspect of the present invention, the partition wall is brought close to the tightening nut and the outer periphery of the tightening nut is covered with an oil drainer.

【0010】[0010]

【作用】この発明における請求項1による軸受装置の仕
切り壁は、第1の器室で発生した飛沫が第2の器室に入
るのを防止し、第1の器室の側壁に形成された案内溝及
び貫通穴は、第1の器室の側壁に付着した飛沫の流れを
案内溝で受け貫通穴から第2の器室へ排出する。
The partition wall of the bearing device according to the first aspect of the present invention is formed on the side wall of the first chamber to prevent the droplets generated in the first chamber from entering the second chamber. The guide groove and the through hole receive the flow of the droplets adhering to the side wall of the first chamber through the guide groove and discharge it to the second chamber through the through hole.

【0011】また、この発明の請求項2による軸受装置
の仕切り壁は、第1の器室で発生した飛沫が第2の器室
に入るのを防止し、第1の器室の側壁に形成された案内
溝、案内溝に沿って形成された案内堰及び貫通穴は、第
1の器室の側壁に付着した飛沫の流れを案内堰により案
内溝に案内し貫通穴から第2の器室へ排出する。
Further, the partition wall of the bearing device according to claim 2 of the present invention prevents droplets generated in the first chamber from entering the second chamber and is formed on the side wall of the first chamber. The guide groove, the guide weir and the through hole formed along the guide groove guide the flow of the droplets adhering to the side wall of the first chamber to the guide groove by the guide weir, and through the through hole to the second chamber. To discharge.

【0012】また、この発明の請求項3による軸受装置
の仕切り壁及び油切りは、第1の器室で発生した飛沫が
第2の器室に入るのを防止し、第1の器室の側壁に形成
された案内溝及び貫通穴は、第1の器室の側壁に付着し
た飛沫の流れを案内溝で受け貫通穴から第2の器室へ排
出する。
Further, the partition wall and the oil drainer of the bearing device according to claim 3 of the present invention prevent droplets generated in the first chamber from entering the second chamber, and The guide groove and the through hole formed in the side wall receive the flow of the droplets adhering to the side wall of the first chamber through the guide groove and discharge it from the through hole to the second chamber.

【0013】また、この発明の請求項4による軸受装置
の仕切り壁は、締付ナットに近接して設けられ、油切り
は締付ナットの外周を覆う。
The partition wall of the bearing device according to the fourth aspect of the present invention is provided in the vicinity of the tightening nut, and the oil cutoff covers the outer periphery of the tightening nut.

【0014】[0014]

【実施例】【Example】

実施例1.以下、この発明の実施例を図について説明す
る。図1はこの発明の実施例1による軸受装置の軸方向
の断面図、図2は図1の軸受装置中のII−II線に沿った
断面図、図3は図1の軸受装置中飛沫案内溝を示す詳細
図である。各図において、1〜4、10、11は従来のもの
と同様のため説明を省略する。12はハウジング4の軸方
向のほぼ中央部の下側に所定の肉厚で形成され外輪2b
が固着される軸受固着部、13はころがり軸受2と平行に
所定の間隔をあけて設けられ、ほぼ中央部に回転軸1が
貫通する貫通穴13aと下側部に連通穴13bとが形成され
た仕切り壁、14はころがり軸受2と仕切り壁13間に形成
され、下側にころがり軸受2の下部を浸漬する潤滑油10
を収容する油溜めが形成された第1の器室、15は仕切り
壁13の第1の器室14と異なる側に形成され、下側に連通
穴13bを介して第1の器室14と接続された油槽を有する
第2の器室、16は仕切り壁13に潤滑油10の油面Aと間隔
をあけ、第1の器室14の側壁に一部が重なるように形成
された貫通穴、17は第1の器室13の貫通穴16と対応する
位置に形成された案内溝である。
Example 1. Embodiments of the present invention will be described below with reference to the drawings. 1 is an axial sectional view of a bearing device according to Embodiment 1 of the present invention, FIG. 2 is a sectional view taken along line II-II in the bearing device of FIG. 1, and FIG. 3 is a splash guide in the bearing device of FIG. It is a detailed view showing a groove. In each figure, 1 to 4, 10 and 11 are the same as the conventional ones, and therefore the description thereof is omitted. The outer ring 2b is formed at a predetermined thickness under the central portion of the housing 4 in the axial direction.
The bearing fixing portion 13 to which is fixed is provided at a predetermined interval in parallel with the rolling bearing 2, and a through hole 13a through which the rotary shaft 1 penetrates and a communication hole 13b at the lower portion are formed at a substantially central portion. A partition wall, 14 is formed between the rolling bearing 2 and the partition wall 13, and the lubricating oil 10 that dips the lower part of the rolling bearing 2 below
A first container chamber 15 in which an oil reservoir is formed to accommodate the first container chamber 15 is formed on a side of the partition wall 13 different from the first container chamber 14 and is connected to the first container chamber 14 through the communication hole 13b on the lower side. A second container chamber having an oil tank connected thereto, 16 is a through hole formed in the partition wall 13 so as to be spaced from the oil surface A of the lubricating oil 10 and to partially overlap the side wall of the first container chamber 14. , 17 are guide grooves formed at positions corresponding to the through holes 16 of the first chamber 13.

【0015】次に、上記のように構成された実施例1に
よる軸受装置の動作について説明する。回転軸1の回転
によって周方向に回転される転動体2cによって、第1
の器室14内の潤滑油10が攪拌され、潤滑油10の一部が飛
沫10a、10bとなって飛散することは従来の軸受装置と
同様である。実施例1による軸受装置では、第1の器室
14の内壁に当った飛沫10bは液状10cとなり、内壁に沿
って降下して案内溝17に入り、回転中のころがり軸受2
の内輪2a、転動体2cが発生する風圧で、貫通穴16か
ら第2の器室15の油槽に排出される。
Next, the operation of the bearing device according to the first embodiment constructed as described above will be described. By the rolling element 2c that is rotated in the circumferential direction by the rotation of the rotating shaft 1,
The lubricating oil 10 in the container chamber 14 is agitated, and a part of the lubricating oil 10 becomes splashes 10a and 10b and scatters, like the conventional bearing device. In the bearing device according to the first embodiment, the first chamber
The droplet 10b that hits the inner wall of 14 becomes a liquid 10c, descends along the inner wall and enters the guide groove 17, and the rolling bearing 2 is rotating.
By the wind pressure generated by the inner ring 2a and the rolling element 2c, the oil is discharged from the through hole 16 to the oil tank of the second chamber 15.

【0016】以上のように実施例1による軸受装置は、
ころがり軸受2と平行に所定の間隔をあけ、ほぼ中央部
に回転軸1が貫通する貫通穴13aと、下側に連通穴13b
とが形成された仕切り壁13と、ころがり軸受2と仕切り
壁13間に形成され下側にころがり軸受2の下部を浸漬す
る潤滑油10を収容する油溜めを有する第1の器室14と、
仕切り壁13の第1の器室14と異なる側に形成され、下側
に連通穴13bを介して第1の器室14と接続された油槽を
有する第2の器室15とを設けることにより、潤滑油10の
飛沫10bが第2の器室15へ浸入するのを阻止し、回転軸
1へ付着するのを防止することによって油漏れを防止す
るとともに、第2の器室15内の潤滑油10の油面Aの乱れ
を防止するので、オイルゲージ11によって正確な油面A
を確認することができる。また、潤滑油10の油面Aと間
隔をあけ、第1の器室14の側壁に一部が重なるように形
成された貫通穴16と、第1の器室14の貫通穴16と対応す
る位置に形成された案内溝17を備えることにより、ころ
がり軸受2を潤滑し内壁に沿って降下する潤滑油10cは
案内溝17と貫通穴16により第1の器室14から第2の器室
15へ排出されることによって、潤滑油10の温度上昇を防
止することが可能となる等の効果を得ることができる。
As described above, the bearing device according to the first embodiment is
A predetermined space is provided in parallel with the rolling bearing 2, and a through hole 13a through which the rotary shaft 1 penetrates is formed in a substantially central portion, and a communication hole 13b is formed on a lower side.
A partition wall 13 in which is formed, and a first chamber 14 having a sump formed between the rolling bearing 2 and the partition wall 13 for containing a lubricating oil 10 for immersing the lower portion of the rolling bearing 2 in the lower side,
By providing a second container chamber 15 which is formed on a side different from the first container chamber 14 of the partition wall 13 and has an oil tank connected to the first container chamber 14 through the communication hole 13b on the lower side thereof. , Prevents the splash 10b of the lubricating oil 10 from entering the second chamber 15 and prevents it from adhering to the rotary shaft 1, thereby preventing oil leakage and lubricating the second chamber 15 Since the oil surface A of the oil 10 is prevented from being disturbed, the oil surface 11 is accurately measured by the oil gauge 11.
Can be confirmed. Further, the through hole 16 formed so as to be spaced apart from the oil surface A of the lubricating oil 10 so as to partially overlap the side wall of the first chamber 14 corresponds to the through hole 16 of the first chamber 14. By providing the guide groove 17 formed at the position, the lubricating oil 10c that lubricates the rolling bearing 2 and descends along the inner wall is formed by the guide groove 17 and the through hole 16 from the first chamber 14 to the second chamber.
By being discharged to 15, it is possible to obtain an effect such that it is possible to prevent the temperature of the lubricating oil 10 from rising.

【0017】実施例2.図4はこの発明の実施例2によ
る軸受装置の断面図、図5は図4の軸受装置中V−V線に
沿った断面図、図6は図4の軸受装置中案内溝部分の詳
細図である。各図において、1〜4、10〜17は実施例1
のものと同様のため説明を省略する。18は第1の器室14
内の案内溝17の下部に案内溝17に沿って突設された案内
堰である。
Example 2. 4 is a sectional view of a bearing device according to a second embodiment of the present invention, FIG. 5 is a sectional view taken along line VV in the bearing device of FIG. 4, and FIG. 6 is a detailed view of a guide groove portion in the bearing device of FIG. Is. In each figure, 1-4, 10-17 are Example 1
The description is omitted because it is the same as the above. 18 is the first chamber 14
A guide weir is provided below the inner guide groove 17 so as to project along the guide groove 17.

【0018】次に、上記のように構成された実施例2に
よる軸受装置の動作について説明する。回転軸1の回転
で回転される転動体2cによって、潤滑油10を攪拌し潤
滑油10が飛散した飛沫10bは、第1の器室14の内壁に当
って液状の潤滑油10cとなり、内壁に沿って降下して案
内堰18により案内溝17に入り、回転中のころがり軸受2
の内輪2a、転動体2cが発生する風圧で、貫通穴16か
ら第2の器室15の油槽へ排出される。
Next, the operation of the bearing device according to the second embodiment constructed as described above will be described. By the rolling element 2c rotated by the rotation of the rotary shaft 1, the lubricating oil 10 is agitated, and the splash 10b of the lubricating oil 10 splashes against the inner wall of the first chamber 14 to become the liquid lubricating oil 10c. It descends along the guide weir 18 into the guide groove 17, and the rolling bearing 2 is rotating.
By the wind pressure generated by the inner ring 2a and the rolling element 2c, the oil is discharged from the through hole 16 to the oil tank of the second chamber 15.

【0019】以上のように実施例2による軸受装置は、
案内溝17の下部に案内堰18を設け、ころがり軸受2を潤
滑し第1の器室14の内壁に沿って降下して、案内溝17に
導かれた潤滑油10cを案内堰18で堰止めることができる
ようにしたので、第1の器室14から第2の器室15へ排出
される潤滑油10cの量をさらに増加することができ、潤
滑油10の温度上昇を防止することが可能となる。
As described above, the bearing device according to the second embodiment is
A guide weir 18 is provided below the guide groove 17, lubricates the rolling bearing 2, descends along the inner wall of the first chamber 14, and dams the lubricating oil 10c guided to the guide groove 17 by the guide weir 18. Since it is possible to further increase the amount of the lubricating oil 10c discharged from the first chamber 14 to the second chamber 15, it is possible to prevent the temperature of the lubricating oil 10 from rising. Becomes

【0020】実施例3.図7はこの発明の実施例3によ
る軸受装置の断面図、図8は図7の軸受装置のVIII−VI
II線に沿った断面図である。各図において、1〜4、10
〜17は実施例1のものと同様のため説明を省略する。19
は仕切り壁13の貫通穴13aからころがり軸受2側に回転
軸1を覆うように延在された油切りである。
Example 3. 7 is a sectional view of a bearing device according to a third embodiment of the present invention, and FIG. 8 is a bearing device VIII-VI of the bearing device of FIG.
It is a sectional view taken along the line II. 1 to 4, 10 in each figure
Since Nos. 17 to 17 are the same as those in the first embodiment, description thereof will be omitted. 19
Is an oil drainer extending from the through hole 13a of the partition wall 13 to the rolling bearing 2 side so as to cover the rotary shaft 1.

【0021】次に、上記のように構成された実施例3に
よる軸受装置の動作について説明する。実施例3による
軸受装置は、上記実施例1とほぼ同様の動作をするとと
もに、支切り壁13の貫通穴13aからころがり軸受2側に
回転軸1を覆った油切り19により、回転軸1に向かう飛
沫10bは振り切られ、第1の器室14の内壁を伝って降下
する。
Next, the operation of the bearing device according to the third embodiment constructed as described above will be described. The bearing device according to the third embodiment operates almost in the same manner as in the first embodiment, and the rotary shaft 1 is provided with an oil drainer 19 that covers the rotary shaft 1 from the through hole 13a of the partition wall 13 to the rolling bearing 2 side. The splash 10b is shaken off and travels down the inner wall of the first chamber 14 to descend.

【0022】以上のように実施例3による軸受装置は、
仕切り壁13の貫通穴13aからころがり軸受2側に回転軸
1を覆うように延在する油切り19を設け、回転軸1に向
かう飛沫10bを振り切るようにしたので、潤滑油10の飛
沫10bが第2の器室15への浸入を防止することができ、
潤滑油10の温度上昇を防止することが可能となる。
As described above, the bearing device according to the third embodiment is
Since the oil cutout 19 extending from the through hole 13a of the partition wall 13 to the rolling bearing 2 side so as to cover the rotary shaft 1 is provided to shake off the splash 10b toward the rotary shaft 1, the splash 10b of the lubricating oil 10 is It is possible to prevent entry into the second chamber 15,
It is possible to prevent the temperature rise of the lubricating oil 10.

【0023】実施例4.図9はこの発明の実施例4によ
る軸受装置の断面図、図10は図9の軸受装置のX−X線に
沿った断面図である。各図において、1〜4、10〜12、
14〜17は実施例3のものと同様のため説明を省略する。
20は締付ナット3側に近接して設けられた仕切り壁、21
はこの仕切り壁20の貫通穴20aからころがり軸受2側に
締付ナット3を覆うように設けられた油切りである。
Example 4. 9 is a sectional view of a bearing device according to a fourth embodiment of the present invention, and FIG. 10 is a sectional view taken along line XX of the bearing device of FIG. In each figure, 1-4, 10-12,
Since 14 to 17 are the same as those in the third embodiment, the description thereof will be omitted.
20 is a partition wall provided close to the tightening nut 3 side, 21
Is an oil drainer provided so as to cover the tightening nut 3 from the through hole 20a of the partition wall 20 to the rolling bearing 2 side.

【0024】次に、上記のように構成された実施例4に
よる軸受装置の動作について説明する。実施例4による
軸受装置は、上記実施例3とほぼ同様の動作を行うが、
締付ナット3を覆うように設けられた油切り21により、
回転軸1に向かう飛沫10bを振り切って飛沫10bが回転
軸1に付着するのを阻止する。
Next, the operation of the bearing device according to the fourth embodiment constructed as described above will be described. The bearing device according to the fourth embodiment performs substantially the same operation as that of the third embodiment,
By the oil drainer 21 provided so as to cover the tightening nut 3,
The splash 10b toward the rotary shaft 1 is shaken off to prevent the splash 10b from adhering to the rotary shaft 1.

【0025】以上のように実施例4による軸受装置は、
締付ナット3側に近接して仕切り壁20を設けることによ
って、軸受装置の軸方向の長さを縮小することができ、
また、貫通穴20aから締付ナット3を覆う油切り21を設
け、この油切り21によって回転軸1に向かう飛沫10bを
振り切り、飛沫10bが回転軸1に付着するのを防止する
ようにしたので、潤滑油10の温度上昇を防止することが
可能になる。
As described above, the bearing device according to the fourth embodiment is
By providing the partition wall 20 close to the tightening nut 3 side, the axial length of the bearing device can be reduced,
Further, an oil drainer 21 for covering the tightening nut 3 from the through hole 20a is provided, and this oil drainer 21 shakes off the splash 10b toward the rotary shaft 1 to prevent the splash 10b from adhering to the rotary shaft 1. It becomes possible to prevent the temperature of the lubricating oil 10 from rising.

【0026】実施例5.上記各実施例においては、ころ
がり軸受2の両側に第1の器室14と第2の器室15を有す
る軸受装置について説明したが、片側のみに第1の器室
14と第2の器室15を有する軸受装置であっても、上記実
施例と同様の効果を発揮することが可能である。
Example 5. In each of the above embodiments, the bearing device having the first chamber 14 and the second chamber 15 on both sides of the rolling bearing 2 has been described, but the first chamber only on one side is described.
Even the bearing device having 14 and the second chamber 15 can exhibit the same effect as that of the above-described embodiment.

【0027】[0027]

【発明の効果】以上のようにこの発明の請求項1によれ
ば、回転軸に締付ナットで固着され回転軸を支承するこ
ろがり軸受、ころがり軸受を収容するハウジング、ころ
がり軸受と平行に所定の間隔をあけて設けられ、かつ、
ほぼ中央部に回転軸が貫通する貫通穴と下側に連通穴が
形成された仕切り壁、ころがり軸受と仕切り壁間に形成
され下側に転がり軸受の下部を浸漬する潤滑油を収容す
る油溜めが形成された第1の器室、仕切り壁の第1の器
室と異なる側に形成され下側に連通穴を介して第1の器
室と接続された油槽を有する第2の器室、仕切り壁に潤
滑油の油面と間隔をあけ第1の器室の側壁に一部が重な
るように形成された貫通穴、第1の器室の内壁の貫通穴
と対応する位置に形成された案内溝を備え、
As described above, according to the first aspect of the present invention, the rolling bearing fixed to the rotating shaft with the tightening nut to support the rotating shaft, the housing for housing the rolling bearing, and the predetermined direction parallel to the rolling bearing. Provided at intervals, and
A partition wall that has a through hole through which the rotary shaft penetrates almost in the center and a communication hole on the lower side, and an oil sump that is formed between the rolling bearing and the partition wall and that contains lubricating oil that immerses the lower part of the rolling bearing below , A second chamber having an oil tank which is formed on a different side of the partition wall from the first chamber and is connected to the first chamber through a communication hole on the lower side, A through hole formed in the partition wall so as to be spaced from the oil surface of the lubricating oil so as to partially overlap the side wall of the first chamber, and formed at a position corresponding to the through hole in the inner wall of the first chamber. With a guide groove,

【0028】また、この発明の請求項2によれば、回転
軸に締付ナットで固着され回転軸を支承するころがり軸
受、ころがり軸受を収容するハウジング、ころがり軸受
と平行に所定の間隔をあけて設けられ、かつ、ほぼ中央
部に回転軸が貫通する貫通穴と下側に連通穴とが形成さ
れた仕切り壁、ころがり軸受と仕切り壁間に形成され下
側にころがり軸受の下部を浸漬する潤滑油を収容する油
溜めが形成された第1の器室、仕切り壁の第1の器室と
異なる側に形成され下側に連通穴を介して第1の器室と
接続された油槽を有する第2の器室、仕切り壁に潤滑油
の油面と間隔をあけ第1の器室の側壁に一部が重なるよ
うに形成された貫通穴、第1の器室の内壁の貫通穴と対
応する位置に形成された案内溝、及び案内溝の下部に案
内溝に沿って突設された案内堰を備え、
According to a second aspect of the present invention, a rolling bearing fixed to the rotary shaft with a tightening nut to support the rotary shaft, a housing for housing the rolling bearing, and a predetermined interval in parallel with the rolling bearing. A partition wall provided with a through hole through which the rotary shaft penetrates and a communication hole on the lower side, which is provided between the rolling bearing and the partition wall, and the lower part of the rolling bearing is immersed in the lower side A first container chamber in which an oil sump for storing oil is formed, and an oil tank formed on a different side of the partition wall from the first container chamber and connected to the first container chamber through a communication hole on the lower side are provided. Corresponding to the through hole formed in the second chamber and the partition wall so as to be spaced from the oil surface of the lubricating oil so as to partially overlap the side wall of the first chamber, and the through hole in the inner wall of the first chamber. Guide groove formed at the position to be installed, and protruding along the guide groove at the bottom of the guide groove With a guide dam that was,

【0029】また、この発明の請求項3によれば、回転
軸に締付ナットで固着され回転軸を支承するころがり軸
受、ころがり軸受を収容するハウジング、ころがり軸受
と平行に所定の間隔をあけて設けられ、かつ、ほぼ中央
部に回転軸が貫通する貫通穴と下側部に連通穴とが形成
された仕切り壁、貫通穴からころがり軸受側に回転軸を
覆うように延在する油切り、ころがり軸受と仕切り壁間
に形成され下側にころがり軸受の下部を浸漬する潤滑油
を収容する油溜めが形成された第1の器室、仕切り壁の
第1の器室と異なる側に形成され下側に連通穴を介して
第1の器室と接続された油槽を有する第2の器室、仕切
り壁に潤滑油の油面と間隔をあけ第1の器室の側壁に一
部が重なるように形成された貫通穴、第1の器室の内壁
の貫通穴と対応する位置に形成された案内溝を備え、
According to a third aspect of the present invention, a rolling bearing fixed to the rotary shaft with a tightening nut to support the rotary shaft, a housing for housing the rolling bearing, and a predetermined distance in parallel with the rolling bearing. A partition wall provided with a through hole through which the rotary shaft penetrates approximately in the center and a communication hole in the lower side, an oil drainer extending from the through hole to the rolling bearing side so as to cover the rotary shaft, A first container room formed between the rolling bearing and the partition wall, in which an oil reservoir for containing the lubricating oil for immersing the lower part of the rolling bearing is formed below, and is formed on a side different from the first container room of the partition wall. A second chamber having an oil tank connected to the first chamber through a communication hole on the lower side, a partition wall is spaced apart from the oil level of the lubricating oil, and a part thereof overlaps the side wall of the first chamber. Corresponding to the through hole formed in the inner wall of the first chamber. Comprising a guide grooves formed in position,

【0030】また、この発明の請求項4によれば、仕切
り壁を締付ナットに近接させるとともに、油切りで締付
ナットの外周を覆うようにしたので、回転軸を伝う油漏
れを防止し、潤滑油の温度上昇を防止することが可能と
なる等の効果が得られる。
According to the fourth aspect of the present invention, since the partition wall is brought close to the tightening nut and the outer periphery of the tightening nut is covered with the oil drainer, oil leakage through the rotary shaft is prevented. Further, it is possible to obtain an effect such that it is possible to prevent the temperature rise of the lubricating oil.

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

【図1】この発明の実施例1による軸受装置の断面図で
ある。
FIG. 1 is a sectional view of a bearing device according to a first embodiment of the present invention.

【図2】図1の軸受装置中のII−II線に沿った断面図で
ある。
FIG. 2 is a sectional view taken along the line II-II in the bearing device of FIG.

【図3】図1の軸受装置中の案内溝部分の詳細図であ
る。
FIG. 3 is a detailed view of a guide groove portion in the bearing device of FIG.

【図4】この発明の実施例2による軸受装置の断面図で
ある。
FIG. 4 is a sectional view of a bearing device according to a second embodiment of the present invention.

【図5】図4の軸受装置中のV−V線に沿った断面図であ
る。
5 is a cross-sectional view taken along the line VV in the bearing device of FIG.

【図6】図4の軸受装置中の案内溝部分の詳細図であ
る。
6 is a detailed view of a guide groove portion in the bearing device of FIG.

【図7】この発明の実施例3による軸受装置の断面図で
ある。
FIG. 7 is a sectional view of a bearing device according to a third embodiment of the present invention.

【図8】図7の軸受装置中のVIII−VIII線に沿った断面
図である。
8 is a sectional view taken along the line VIII-VIII in the bearing device of FIG.

【図9】この発明の実施例4による軸受装置の断面図で
ある。
FIG. 9 is a sectional view of a bearing device according to a fourth embodiment of the present invention.

【図10】図9の軸受装置中のX−X線に沿った断面図で
ある。
10 is a cross-sectional view taken along the line XX in the bearing device of FIG.

【図11】従来の軸受装置の断面図である。FIG. 11 is a sectional view of a conventional bearing device.

【図12】図11の軸受装置中のXI−XI線に沿った断面図
である。
12 is a sectional view taken along the line XI-XI in the bearing device of FIG.

【符号の説明】[Explanation of symbols]

1 回転軸 2 ころがり軸受 3 締付ナット 4 ハウジング 10 潤滑油 13,20 仕切り壁 13a 貫通穴 13b 連通穴 14 第1の器室 15 第2の器室 16 貫通穴 17 案内溝 18 堰 19,21 油切り 1 Rotating shaft 2 Rolling bearing 3 Tightening nut 4 Housing 10 Lubricating oil 13 and 20 Partition wall 13a Through hole 13b Communication hole 14 First chamber 15 Second chamber 16 Through hole 17 Guide groove 18 Weir 19,21 Oil Cut

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 回転軸に締付ナットで固着され回転軸を
支承するころがり軸受、上記ころがり軸受を収容するハ
ウジング、上記ころがり軸受と平行に所定の間隔をあけ
て設けられ、かつ、ほぼ中央部に上記回転軸が貫通する
貫通穴と下側部に連通穴とが形成された仕切り壁、上記
ころがり軸受と上記仕切り壁間に形成され下側に上記こ
ろがり軸受の下部を浸漬する潤滑油を収容する油溜めが
形成された第1の器室、上記仕切り壁の上記第1の器室
と異なる側に形成され下側に上記連通穴を介して上記第
1の器室と接続された油槽を有する第2の器室、上記仕
切り壁に上記潤滑油の油面と間隔をあけ上記第1の器室
の側壁に一部が重なるように形成された貫通穴、上記第
1の器室の内壁の上記貫通穴と対応する位置に形成され
た案内溝を備えたことを特徴とする軸受装置。
1. A rolling bearing fixed to a rotary shaft with a tightening nut to support the rotary shaft, a housing for housing the rolling bearing, a predetermined distance in parallel with the rolling bearing, and a substantially central portion. A partition wall having a through hole through which the rotary shaft penetrates and a communication hole at the lower side, and a lubricating oil for immersing the lower part of the rolling bearing below between the rolling bearing and the partition wall. A first container chamber in which an oil sump is formed, and an oil tank formed on a different side of the partition wall from the first container chamber and connected to the first container chamber through the communication hole on the lower side. A second container chamber having a through hole formed in the partition wall at a distance from the oil surface of the lubricating oil so as to partially overlap the side wall of the first container chamber; and an inner wall of the first container chamber A guide groove formed at a position corresponding to the above through hole of Bearing device characterized by:
【請求項2】 回転軸に締付ナットで固着され回転軸を
支承するころがり軸受、上記ころがり軸受を収容するハ
ウジング、上記ころがり軸受と平行に所定の間隔をあけ
て設けられ、かつ、ほぼ中央部に上記回転軸が貫通する
貫通穴と下側部に連通穴とが形成された仕切り壁、上記
ころがり軸受と上記仕切り壁間に形成され下側に上記こ
ろがり軸受の下部を浸漬する潤滑油を収容する油溜めが
形成された第1の器室、上記仕切り壁の上記第1の器室
と異なる側に形成され下側に上記連通穴を介して上記第
1の器室と接続された油槽を有する第2の器室、上記仕
切り壁に上記潤滑油の油面と間隔をあけ上記第1の器室
の側壁に一部が重なるように形成された貫通穴、上記第
1の器室の内壁の上記貫通穴と対応する位置に形成され
た案内溝、及び上記案内溝の下部に上記案内溝に沿って
突設された案内堰を備えたことを特徴とする軸受装置。
2. A rolling bearing fixed to a rotating shaft with a tightening nut to support the rotating shaft, a housing for housing the rolling bearing, a roller bearing provided in parallel with the rolling bearing at a predetermined interval, and substantially at a central portion. A partition wall having a through hole through which the rotary shaft penetrates and a communication hole at the lower side, and a lubricating oil for immersing the lower part of the rolling bearing below between the rolling bearing and the partition wall. A first container chamber in which an oil sump is formed, and an oil tank formed on a different side of the partition wall from the first container chamber and connected to the first container chamber through the communication hole on the lower side. A second container chamber having a through hole formed in the partition wall at a distance from the oil surface of the lubricating oil so as to partially overlap the side wall of the first container chamber; and an inner wall of the first container chamber A guide groove formed at a position corresponding to the through hole of A bearing device comprising a guide weir provided below the guide groove so as to project along the guide groove.
【請求項3】 回転軸に締付ナットで固着され回転軸を
支承するころがり軸受、上記ころがり軸受を収容するハ
ウジング、上記ころがり軸受と平行に所定の間隔をあけ
て設けられ、かつ、ほぼ中央部に上記回転軸が貫通する
貫通穴と下側部に連通穴とが形成された仕切り壁、上記
貫通穴から上記ころがり軸受側に上記回転軸を覆うよう
に延在する油切り、上記ころがり軸受と上記仕切り壁間
に形成され下側に上記ころがり軸受の下部を浸漬する潤
滑油を収容する油溜めが形成された第1の器室、上記仕
切り壁の上記第1の器室と異なる側に形成され下側に上
記連通穴を介して上記第1の器室と接続された油槽を有
する第2の器室、上記仕切り壁に上記潤滑油の油面と間
隔をあけ上記第1の器室の側壁に一部が重なるように形
成された貫通穴、上記第1の器室の内壁の上記貫通穴と
対応する位置に形成された案内溝を備えたことを特徴と
する軸受装置。
3. A rolling bearing fixed to the rotating shaft with a tightening nut to support the rotating shaft, a housing for housing the rolling bearing, a roller bearing provided in parallel with the rolling bearing at a predetermined interval, and substantially at a central portion. A partition wall having a through hole through which the rotary shaft penetrates and a communication hole in the lower side, an oil drainer extending from the through hole to the rolling bearing side to cover the rotary shaft, and the rolling bearing. A first container chamber formed between the partition walls and having an oil reservoir for containing lubricating oil for immersing the lower part of the rolling bearing formed below, formed on a different side of the partition wall from the first container chamber And a second chamber having an oil tank connected to the first chamber through the communication hole on the lower side, and a space between the partition wall and the oil surface of the lubricating oil. Through hole formed so that a part of it overlaps the side wall A bearing device comprising a guide groove formed at a position corresponding to the through hole in the inner wall of the first chamber.
【請求項4】 仕切り壁を締付ナットに近接させるとと
もに油切りを締付ナットの外周を覆うようにしたことを
特徴とする請求項3記載の軸受装置。
4. The bearing device according to claim 3, wherein the partition wall is brought close to the tightening nut, and the oil cutout covers the outer periphery of the tightening nut.
JP17667293A 1993-07-16 1993-07-16 Bearing device Expired - Lifetime JP3315480B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17667293A JP3315480B2 (en) 1993-07-16 1993-07-16 Bearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17667293A JP3315480B2 (en) 1993-07-16 1993-07-16 Bearing device

Publications (2)

Publication Number Publication Date
JPH0735144A true JPH0735144A (en) 1995-02-03
JP3315480B2 JP3315480B2 (en) 2002-08-19

Family

ID=16017708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17667293A Expired - Lifetime JP3315480B2 (en) 1993-07-16 1993-07-16 Bearing device

Country Status (1)

Country Link
JP (1) JP3315480B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003083344A (en) * 2001-09-10 2003-03-19 Sasakura Engineering Co Ltd Seal structure of bearing device
US9903786B2 (en) 2013-04-05 2018-02-27 Nsk Ltd. Radial rolling-bearing testing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003083344A (en) * 2001-09-10 2003-03-19 Sasakura Engineering Co Ltd Seal structure of bearing device
US9903786B2 (en) 2013-04-05 2018-02-27 Nsk Ltd. Radial rolling-bearing testing device

Also Published As

Publication number Publication date
JP3315480B2 (en) 2002-08-19

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