JPS6312315Y2 - - Google Patents
Info
- Publication number
- JPS6312315Y2 JPS6312315Y2 JP9428483U JP9428483U JPS6312315Y2 JP S6312315 Y2 JPS6312315 Y2 JP S6312315Y2 JP 9428483 U JP9428483 U JP 9428483U JP 9428483 U JP9428483 U JP 9428483U JP S6312315 Y2 JPS6312315 Y2 JP S6312315Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- inlet
- flow
- injection
- injection port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000002347 injection Methods 0.000 claims description 28
- 239000007924 injection Substances 0.000 claims description 28
- 238000005096 rolling process Methods 0.000 claims description 8
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 claims 2
- 239000012530 fluid Substances 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は、ころがり軸受の潤滑用ノズル装置に
関し、特に、ノズル装置として流体素子を応用し
て、転がり軸受の正回転、逆回転のいずれの回転
方向に対しても、微量の潤滑油を気体流により軸
受内に連続的にもしくは間けつ的に供給すること
を可能とする噴射方向可変な潤滑用ノズル装置に
関する。[Detailed Description of the Invention] The present invention relates to a nozzle device for lubricating a rolling bearing, and in particular applies a fluid element as the nozzle device to lubricate the rolling bearing in both forward and reverse rotational directions. The present invention relates to a lubricating nozzle device with a variable injection direction that allows a small amount of lubricating oil to be continuously or intermittently supplied into a bearing by means of a gas flow.
従来、例えば、ノズルを用いて微量の潤滑油を
混合した気体を高速で回転している軸受内に直角
に噴射すると、転動体や保持器がこの気流を横切
るため、主に転動体数と転動体公転速度で決まる
周波数の振動が軸受部に生じ、騒音発生の主要因
となる。 Conventionally, for example, when a nozzle is used to inject gas mixed with a small amount of lubricating oil at right angles into a bearing rotating at high speed, the rolling elements and cage cross this airflow, which mainly affects the number of rolling elements and rolling elements. Vibration at a frequency determined by the revolving speed of the moving object occurs in the bearing, and is the main cause of noise generation.
上記振動や騒音を低減するための一手段とし
て、潤滑用ノズルの噴射方向を軸受の軸心に対し
傾斜させることが知られている。 As one means for reducing the vibration and noise, it is known to make the injection direction of the lubricant nozzle inclined with respect to the axis of the bearing.
しかし、一つの軸受で正回転と逆回転が組合さ
れて用いられる場合に、夫々の回転方向に傾斜を
合わせた２本のノズルを用いることが必要であ
り、そのため回転方向の切替と噴射のタイミング
を制御するための装置（例えば弁装置）が夫々の
ノズルに必要となる。 However, when a single bearing is used for a combination of forward rotation and reverse rotation, it is necessary to use two nozzles that are tilted in the respective rotation directions, and this makes it necessary to change the rotation direction and the injection timing. A device (for example, a valve device) is required for each nozzle.
この重複した制御装置をさけるために、気体の
流れがこの流れの近傍にある側壁に付着して流れ
さる現象、いわゆるコアンダ現象を利用した流体
素子を使うことも考えられる。 In order to avoid this redundant control device, it is conceivable to use a fluid element that utilizes the so-called Coanda phenomenon, in which a gas flow adheres to a side wall near the flow and flows away.
そこで、第１図に流体素子を潤滑用ノズル装置
として用いた噴射方向可変ノズル装置の概略図を
示すが、ノズル本体１の送込口Ｍから気体を注入
し、注入口ａから制御流を注入（圧力をあげる）
すれば噴射口Ａから気体が噴出し、軸受BrgがＲ
方向に回転している場合に前記軸受を潤滑し、又
注入口ｂから制御流を注入（圧力をあげる）すれ
ば噴射口Ｂから気体が噴出し、前記軸受がＲ方向
とは逆なＬ方向に回転している場合に軸受を潤滑
する。 Therefore, Fig. 1 shows a schematic diagram of a variable injection direction nozzle device using a fluid element as a lubricating nozzle device. Gas is injected from the inlet M of the nozzle body 1, and a controlled flow is injected from the inlet a. (increase pressure)
Then, gas will be ejected from the injection port A, and the bearing Brg will be R.
If the bearing is rotated in the direction, the bearing is lubricated, and if a control flow is injected (increased the pressure) from the injection port B, gas is ejected from the injection port B, and the bearing rotates in the L direction, which is opposite to the R direction. Lubricate the bearings when rotating.
この場合、噴出気体が軸受に傾斜して噴出され
るので、振動、騒音を低減することは可能となる
が、軸受の回転方向によつて制御流を注入口ａも
しくは注入口ｂから注入するために、回転方向の
切替を感知する感知装置、制御流を注入口ａもし
くは注入口ｂに分配する弁機構など、種々の制御
装置を設けねばならず、これら設備に要する費
用、さらに取付スペースなどが必要となる欠点を
有している。 In this case, since the ejected gas is ejected at an angle to the bearing, it is possible to reduce vibration and noise. In addition, various control devices must be installed, such as a sensing device that detects the switching of the rotation direction and a valve mechanism that distributes the control flow to inlet a or inlet b, which increases the cost and installation space required for these equipment. It has the necessary drawbacks.
本考案は上記の欠点を解消するためになされた
ものであり、この考案の目的は注入口ａおよび注
入口ｂの近傍に集風装置を設けて軸受の回転に伴
つて生ずる気体の回転流を集束して注入口ａもし
くは注入口ｂに導くことによつて噴出気体を軸受
の回転方向に合わせることを可能として、何らの
制御装置をも不必要とした転がり軸受の潤滑用ノ
ズル装置を提供することにある。 The present invention was made in order to eliminate the above-mentioned drawbacks, and the purpose of this invention is to provide a wind collector near the inlet a and the inlet b to reduce the rotational flow of gas generated as the bearing rotates. To provide a nozzle device for lubricating a rolling bearing, which makes it possible to align ejected gas with the rotational direction of a bearing by concentrating it and guiding it to an inlet a or b, thereby eliminating the need for any control device. There is a particular thing.
以下、この考案の実施例について図面を参照し
て説明する。 Hereinafter, embodiments of this invention will be described with reference to the drawings.
第２図は、この考案の実施例であり、同図にお
いて、１はノズル本体、２は潤滑される軸受の１
部で２１は転動体、２２は保持器、２３は内輪、
２４は外輪、３、４は軸受の回転によつて生ずる
回転流S1、S2を集束するために開口部３１、４１
を軸受側に向けた集風装置で、３は注入口ａ側、
４は注入口ｂ側につき、５は気体にわずかな潤滑
油を間けつ的にあるいは連続的に混入する混入装
置であつて、前記混入装置５で適量の潤滑油が混
入された気体をノズル本体１の送込口Ｍから送込
む。 Figure 2 shows an embodiment of this invention, in which 1 is the nozzle body, 2 is the bearing 1 to be lubricated.
21 is a rolling element, 22 is a cage, 23 is an inner ring,
24 is an outer ring, and 3 and 4 are openings 31 and 41 for converging the rotational flows S 1 and S 2 generated by the rotation of the bearing.
3 is the air collecting device facing the bearing side, 3 is the inlet a side,
Reference numeral 4 is on the injection port b side, and reference numeral 5 is a mixing device that mixes a small amount of lubricating oil into the gas intermittently or continuously. Feed from the inlet M of No.1.
ノズル本体１の注入口ａ、ｂ近傍に集風装置
３、４の一方の端部がそれぞれ位置し、集風装置
３、４の他方の端部は軸受２近傍に位置する。集
風装置３、４はいずれも軸受２の回転流を注入口
ａ、ｂへ集束する流通路を内面に有し、流通路の
一方の端部は注入口ａ、ｂに通じて他方の端部で
ある開口部３１、４１は軸受２側に位置する。流
通路は注入口側部より開口部３１、４１へ向かつ
て徐々に軸と直角方向断面の面積が大きくなり、
注入口側部より開口部３１、４１が広い空間を有
する。集風装置３、４は軸受の軸心及び軸受の側
面に対してそれぞれ傾斜している。軸受の回転が
Ｒ方向のとき、噴射口Ａから気体を噴出させる場
合、軸受の回転によつて生ずる回転流S1を注入口
ａ側の集風装置へ集束し、注入口ａに制御流とし
て注入することによつて、前記コアンダ現象を利
用して連続的に噴射口Ａから噴射する。 One end of the air collectors 3 and 4 is located near the injection ports a and b of the nozzle body 1, respectively, and the other end of the air collectors 3 and 4 is located near the bearing 2. Both of the air collectors 3 and 4 have flow passages on their inner surfaces that converge the rotating flow of the bearing 2 to the inlets a and b, and one end of the flow passage leads to the inlets a and b, and the other end leads to the inlets a and b. The openings 31 and 41 are located on the bearing 2 side. The area of the cross section in the direction perpendicular to the axis gradually increases from the side of the inlet toward the openings 31 and 41,
The openings 31 and 41 have a wider space than the side of the injection port. The air collectors 3 and 4 are inclined with respect to the axis of the bearing and the side surface of the bearing, respectively. When the rotation of the bearing is in the R direction and gas is ejected from the injection port A, the rotational flow S1 generated by the rotation of the bearing is focused on the air collecting device on the side of the injection port a, and is sent to the injection port a as a control flow. By injecting it, it is continuously injected from the injection port A using the Coanda phenomenon.
又、軸受の回転が逆にＬ方向に切替つたとき、
回転に伴つて生ずる回転流S2は回転方向Ｒのとき
と逆になつて、注入口ｂ側集風装置４へ開口部４
１を通つて集束され、それが注入口ｂから制御流
となつて注入されるので、噴出気体は噴射口Ａか
ら噴射口Ｂへ変化し、回転方向Ｌに適した傾斜で
軸受を潤滑する。 Also, when the rotation of the bearing is reversely switched to the L direction,
The rotational flow S2 generated with the rotation is reversed to the direction of rotation R, and flows through the opening 4 to the air collector 4 on the side of the inlet b.
1 and is injected in a controlled flow from the inlet b, so that the ejected gas changes from the injection port A to the injection port B and lubricates the bearing with an inclination suitable for the direction of rotation L.
尚、前記制御流は注入口ａもしくは注入口ｂか
ら連続的もしくは一度だけ注入されてもよい。 Note that the control flow may be injected continuously or only once from the injection port a or injection port b.
以上説明したところから明かなように、この考
案はノズル本体の制御流入口に集風装置を設け、
軸受の回転によつて生ずる回転流を集束して制御
流として、注入口ａもしくは注入口ｂに注入する
ことによつて、噴出気体を軸受の回転方向に合わ
せて噴出できる、いわゆる噴射方向可変ノズルで
あるので、軸受の回転方向切替の感知装置、制御
流発生装置、など制御装置を何ら必要としないか
ら、スペースや設備に要する費用も少なくてすむ
し、さらにはノズル設置そのものも容易である。 As is clear from the above explanation, this invention provides a ventilation device at the control inlet of the nozzle body,
A so-called variable injection direction nozzle that can eject ejected gas in accordance with the rotational direction of the bearing by focusing the rotational flow generated by the rotation of the bearing and injecting it as a controlled flow into the injection port a or injection port b. Therefore, there is no need for any control devices such as a sensing device for switching the rotating direction of the bearing or a control flow generating device, so the cost required for space and equipment is reduced, and furthermore, the nozzle installation itself is easy.
第１図は流体素子を応用した従来のノズル装
置、第２図は本考案の実施例の構造ならびに作動
原理を示す正面図である。
符号の説明、１……ノズル本体、２……軸受、
３，４……集風装置、５……混入装置、S1，S2…
…回転流、Ａ，Ｂ……噴射口、ａ，ｂ……注入
口。
FIG. 1 is a front view showing a conventional nozzle device using a fluid element, and FIG. 2 is a front view showing the structure and operating principle of an embodiment of the present invention. Explanation of symbols, 1... Nozzle body, 2... Bearing,
3, 4... Air collecting device, 5... Mixing device, S 1 , S 2 ...
... Rotating flow, A, B... Injection port, a, b... Inlet.
Claims (1)
潤滑油を混合した気体を墳射し、軸受の軸心に対
して傾斜しかつ回転方向に順じた傾斜角度の噴射
口を有する噴射方向可変ノズル本体を備えた潤滑
用ノズル装置であつて、該ノズル本体は軸受に対
向した２つの噴射口と、両側面に設けられた噴射
方向を切替えるべき制御流を注入する注入口と、
反軸受側に設けられかつ潤滑油を混入した気体を
送込む送込口と、内面に流通路を有し、流通路の
一方の端部は注入口に通じ、流通路の他方の端部
の開口部は軸受側に位置しかつ流通路は注入口側
部より開口部が広い空間を有する集風装置とを備
え、該集風装置は軸受の回転流を注入口へ集束す
ることを特徴とする転がり軸受の潤滑用ノズル装
置。 A variable injection direction that injects a gas mixed with lubricating oil onto a rotating bearing that is used by changing the rotation direction, and has an injection port that is inclined with respect to the axis of the bearing and whose angle corresponds to the rotation direction. A lubrication nozzle device comprising a nozzle body, the nozzle body having two injection ports facing a bearing, injection ports provided on both sides for injecting a control flow to switch the injection direction,
It has an inlet that is provided on the opposite side of the bearing and sends gas mixed with lubricating oil, and a flow path on the inner surface, one end of the flow path leads to the injection port, and the other end of the flow path leads to the inlet. The air collecting device is characterized in that the opening is located on the bearing side and the flow passage has a wider space at the opening than the inlet side, and the air collecting device focuses the rotational flow of the bearing toward the inlet. A nozzle device for lubrication of rolling bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9428483U JPS603397U (en) | 1983-06-21 | 1983-06-21 | Nozzle device for lubrication of rolling bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9428483U JPS603397U (en) | 1983-06-21 | 1983-06-21 | Nozzle device for lubrication of rolling bearings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS603397U JPS603397U (en) | 1985-01-11 |
| JPS6312315Y2 true JPS6312315Y2 (en) | 1988-04-08 |
Family
ID=30225762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9428483U Granted JPS603397U (en) | 1983-06-21 | 1983-06-21 | Nozzle device for lubrication of rolling bearings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS603397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8734021B2 (en) | 2004-12-14 | 2014-05-27 | Jtekt Corporation | Rolling bearing device and spindle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0686887B2 (en) * | 1985-02-12 | 1994-11-02 | 株式会社松井製作所 | Universal Sardin |
| JP4569775B2 (en) * | 2004-12-14 | 2010-10-27 | 株式会社ジェイテクト | Rolling bearing device |
-
1983
- 1983-06-21 JP JP9428483U patent/JPS603397U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8734021B2 (en) | 2004-12-14 | 2014-05-27 | Jtekt Corporation | Rolling bearing device and spindle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS603397U (en) | 1985-01-11 |
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