JP2803733B2 - How to apply lubricant to dynamic pressure bearing - Google Patents
How to apply lubricant to dynamic pressure bearingInfo
- Publication number
- JP2803733B2 JP2803733B2 JP14062790A JP14062790A JP2803733B2 JP 2803733 B2 JP2803733 B2 JP 2803733B2 JP 14062790 A JP14062790 A JP 14062790A JP 14062790 A JP14062790 A JP 14062790A JP 2803733 B2 JP2803733 B2 JP 2803733B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- lubricant
- dynamic pressure
- cylindrical body
- grease
- 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 - Fee Related
Links
Landscapes
- Sliding-Contact Bearings (AREA)
Description
この発明は、動圧軸受の潤滑剤塗布方法に関する。 The present invention relates to a method for applying a lubricant to a dynamic pressure bearing.
従来、動圧軸受の筒体および軸へのグリースの塗布は
第２図に示すようにして行っていた。すなわち、筒体１
内にできるだけ均一にグリース２を注入し、その後、筒
体１内に軸３を挿入して、筒体１の内面1aおよび軸３の
外周にグリース２を塗布するようにしている。Conventionally, grease is applied to a cylinder and a shaft of a dynamic pressure bearing as shown in FIG. That is, the cylinder 1
The grease 2 is poured into the inside of the cylinder 1 as uniformly as possible, and then the shaft 3 is inserted into the cylinder 1 so that the grease 2 is applied to the inner surface 1 a of the cylinder 1 and the outer periphery of the shaft 3.
しかしながら、上記従来のグリースの塗布方法では、
グリース２を均一に注入しなければならず、面倒で、さ
らに、軸３を筒体１に挿入しても、グリース２を横方向
に押し広げる作用が不十分で、グリース２を筒体１の内
面1aに均一に塗布できないという問題があった。また、
グリース２を横方向に押し広げる作用が不十分であるた
め、グリース２中に気泡５が混入するという問題があっ
た。また、筒体１の底から余分なグリースがはみ出すた
め、グリース２が無駄になるという問題があった。 そこで、この発明の目的は、筒体の内面に潤滑剤を簡
単な操作で均一に塗布でき、かつ潤滑剤への気泡の混入
を防止でき、さらに潤滑剤を無駄にしない動圧軸受の潤
滑剤塗布方法を提供することにある。However, in the above conventional method of applying grease,
The grease 2 must be uniformly injected, which is troublesome. Further, even if the shaft 3 is inserted into the cylinder 1, the effect of pushing and spreading the grease 2 in the lateral direction is insufficient. There was a problem that the coating could not be applied uniformly to the inner surface 1a. Also,
Since the action of expanding the grease 2 in the lateral direction is insufficient, there has been a problem that bubbles 5 are mixed into the grease 2. In addition, there is a problem that grease 2 is wasted because excess grease protrudes from the bottom of the cylindrical body 1. SUMMARY OF THE INVENTION It is an object of the present invention to provide a lubricant for a dynamic pressure bearing which can uniformly apply a lubricant to the inner surface of a cylindrical body by a simple operation, can prevent air bubbles from being mixed into the lubricant, and does not waste the lubricant. An object of the present invention is to provide a coating method.
上記目的を達成するため、この発明の動圧軸受の潤滑
剤塗布方法は、動圧軸受の筒体の中に、弾性体によって
付勢された受け軸を挿入しておき、潤滑剤を受け軸の端
面と筒体の内面で形成された凹部に注入した後、上記動
圧軸受の軸を上記筒体の中に潤滑剤を介して受け軸を押
し出しつつ挿入して、上記筒体の内面に潤滑剤を塗布す
ることを特徴としている。In order to achieve the above object, a method of applying a lubricant to a dynamic pressure bearing according to the present invention includes inserting a receiving shaft urged by an elastic body into a cylinder of the dynamic pressure bearing, and After injection into the recess formed by the end face of the cylinder and the inner surface of the cylindrical body, the shaft of the dynamic pressure bearing is inserted into the cylindrical body while extruding a receiving shaft via a lubricant, and is inserted into the inner surface of the cylindrical body. It is characterized by applying a lubricant.
上記筒体の内面と受け軸の端面で形成された凹部に注
入された潤滑剤は、上記筒体の中に軸が挿入されると、
その軸の端面と受け軸の端面とに押し潰されて、横方向
に広がり、隙間に漏れなく行きわたり、筒体の内面に漏
れなく、均一に塗布される。そして、軸の挿入とともに
受け軸は弾性体を圧縮しつつ後退し、軸の端面と受け軸
の端面とに押し潰された潤滑剤は筒体の内面全体に均一
に塗布される。このように、受け軸の端面と軸の端面と
で、潤滑剤を圧縮して筒体の内面に塗布するので、潤滑
剤に気泡が混入することがなく、潤滑剤が筒体から大量
にはみ出ることがない。The lubricant injected into the concave portion formed by the inner surface of the cylindrical body and the end surface of the receiving shaft, when the shaft is inserted into the cylindrical body,
It is crushed by the end surface of the shaft and the end surface of the receiving shaft and spreads in the lateral direction, so that it is uniformly applied to the gap without leaking or to the inner surface of the cylinder. When the shaft is inserted, the receiving shaft retracts while compressing the elastic body, and the lubricant crushed by the end surface of the shaft and the end surface of the receiving shaft is uniformly applied to the entire inner surface of the cylindrical body. As described above, since the lubricant is compressed and applied to the inner surface of the cylindrical body at the end surface of the receiving shaft and the end surface of the shaft, the lubricant does not enter the lubricant and a large amount of the lubricant protrudes from the cylindrical body. Nothing.
以下、この発明を第１図に示す実施例により詳細に説
明する。 第１図において、１は筒体、２は潤滑剤の一例として
のグリース、３は動圧溝3aを有する軸、７は筒体３内に
下方から摺動自在に挿入した受け軸、８は受け軸７を上
方に付勢する弾性体としてのスプリングである。 まず、筒体１の内面1aと受け軸７の端面とで形成され
た凹部にグリース２を注入する。次に、上記筒体１内に
軸３をグリース２を受け軸７の端面に向けて押し付ける
ようにして挿入する。そして、さらに、上記筒体１の中
に軸３を挿入すると、グリース２はその軸３の端面と受
け軸７の端面とに押し潰されて、横方向に広がり、隙間
に漏れなく行きわたり、筒体１の内面に漏れなく、均一
に塗布される。そして、上記軸３を筒体１内にさらに挿
入すると、受け軸７はスプリング８を圧縮しつつ後退
し、軸３の端面と受け軸７の端面とに押し潰されたグリ
ース２は筒体１の内面全体に均一に塗布される。 このように、グリース２を受け軸７の端面と軸３の端
面とで圧縮して筒体１の内面に塗布するので、グリース
２に気泡が混入することがなく、グリース２が筒体１か
ら大量にはみ出て、無駄になることがない。 上記実施例では、軸３に動圧溝3aを設けたものであっ
たが、筒体１に動圧溝を設けたものであってもよい。Hereinafter, the present invention will be described in detail with reference to the embodiment shown in FIG. In FIG. 1, 1 is a cylinder, 2 is grease as an example of a lubricant, 3 is a shaft having a dynamic pressure groove 3a, 7 is a bearing shaft slidably inserted into the cylinder 3 from below, and 8 is It is a spring as an elastic body for urging the receiving shaft 7 upward. First, grease 2 is injected into a recess formed between the inner surface 1a of the cylindrical body 1 and the end surface of the receiving shaft 7. Next, the shaft 3 is inserted into the cylindrical body 1 so as to press the grease 2 toward the end face of the shaft 7. Further, when the shaft 3 is further inserted into the cylindrical body 1, the grease 2 is crushed by the end surface of the shaft 3 and the end surface of the receiving shaft 7, and spreads in the lateral direction, and passes through the gap without leaking. The coating is uniformly applied to the inner surface of the cylinder 1 without leakage. When the shaft 3 is further inserted into the cylindrical body 1, the receiving shaft 7 is retracted while compressing the spring 8, and the grease 2 crushed by the end surface of the shaft 3 and the end surface of the receiving shaft 7 is removed. Is uniformly applied to the entire inner surface of the substrate. As described above, since the grease 2 is compressed by the end surface of the shaft 7 and the end surface of the shaft 3 and applied to the inner surface of the cylindrical body 1, no air bubbles enter the grease 2 and the grease 2 is removed from the cylindrical body 1. It does not run out in large quantities and is wasted. In the above embodiment, the shaft 3 is provided with the dynamic pressure groove 3a. However, the cylindrical body 1 may be provided with the dynamic pressure groove.
以上より明らかなように、この発明によれば、弾性体
に付勢され、筒体に挿入された受け軸の端面と軸の端面
で潤滑剤を押し潰して、受け軸を後退させつつ、筒体の
内面に潤滑剤を塗布するので、簡単な操作で、潤滑剤を
均一に塗布でき、潤滑剤に気泡が混入することがなく、
また、潤滑剤が筒体からはみ出て無駄になることもな
い。As is clear from the above, according to the present invention, the cylinder is urged by the elastic body and crushes the lubricant on the end face of the receiving shaft and the end face of the shaft inserted into the cylindrical body, and retreats the receiving shaft. Since the lubricant is applied to the inner surface of the body, the lubricant can be uniformly applied with a simple operation, and no bubbles are mixed into the lubricant.
Further, the lubricant does not protrude from the cylinder and is not wasted.
第１図はこの発明の方法を説明する図、第２図は従来の
方法を説明する図である。 １……筒体、２……グリース、３……軸、７……受け
軸、８……スプリング。FIG. 1 is a diagram for explaining the method of the present invention, and FIG. 2 is a diagram for explaining a conventional method. 1 ... cylindrical body, 2 ... grease, 3 ... shaft, 7 ... receiving shaft, 8 ... spring.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高橋 毅 大阪府大阪市中央区南船場３丁目５番８ 号 光洋精工株式会社内 (58)調査した分野(Int.Cl.6，ＤＢ名) F16C 17/02 F16C 33/10──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takeshi Takahashi 3-5-8 Minamisenba, Chuo-ku, Osaka-shi, Osaka Koyo Seiko Co., Ltd. (58) Field surveyed (Int.Cl. 6 , DB name) F16C 17 / 02 F16C 33/10
Claims (1)
勢された受け軸を挿入しておき、潤滑剤を受け軸の端面
と筒体の内面で形成された凹部に注入した後、上記動圧
軸受の軸を上記筒体の中に潤滑剤を介して受け軸を押し
出しつつ挿入して、上記筒体の内面に潤滑剤を塗布する
ことを特徴とする動圧軸受の潤滑剤塗布方法。1. A bearing shaft urged by an elastic body is inserted into a cylinder of a dynamic pressure bearing, and a lubricant is injected into a recess formed between an end surface of the shaft and an inner surface of the cylinder. After that, the shaft of the dynamic pressure bearing is inserted into the cylindrical body while pushing the receiving shaft through a lubricant, and the lubricant is applied to the inner surface of the cylindrical body. Agent application method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14062790A JP2803733B2 (en) | 1990-05-30 | 1990-05-30 | How to apply lubricant to dynamic pressure bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14062790A JP2803733B2 (en) | 1990-05-30 | 1990-05-30 | How to apply lubricant to dynamic pressure bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0434210A JPH0434210A (en) | 1992-02-05 |
| JP2803733B2 true JP2803733B2 (en) | 1998-09-24 |
Family
ID=15273099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14062790A Expired - Fee Related JP2803733B2 (en) | 1990-05-30 | 1990-05-30 | How to apply lubricant to dynamic pressure bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2803733B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7210909B2 (en) * | 2018-06-08 | 2023-01-24 | 株式会社デンソー | Clutch, motor, and method of manufacturing clutch |
-
1990
- 1990-05-30 JP JP14062790A patent/JP2803733B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0434210A (en) | 1992-02-05 |
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