JP2606937B2 - Sintered oil-impregnated bearing assembly and manufacturing method thereof - Google Patents
Sintered oil-impregnated bearing assembly and manufacturing method thereofInfo
- Publication number
- JP2606937B2 JP2606937B2 JP1334191A JP33419189A JP2606937B2 JP 2606937 B2 JP2606937 B2 JP 2606937B2 JP 1334191 A JP1334191 A JP 1334191A JP 33419189 A JP33419189 A JP 33419189A JP 2606937 B2 JP2606937 B2 JP 2606937B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- sintered
- housing
- bearing assembly
- bearing
- 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)
- Mounting Of Bearings Or Others (AREA)
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】 《産業上の利用分野》 この発明は、焼結含油軸受をハウジングに装着する際
に、ハウジングに不要な油を付着させることのない焼結
含油軸受組立体、およびその製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a sintered oil-impregnated bearing assembly which does not cause unnecessary oil to adhere to the housing when the sintered oil-impregnated bearing is mounted on the housing, and the same. It relates to a manufacturing method.
《従来の技術》 例えば、音響機器のキャブスタン軸受などのように、
焼結軸受をハウジングに装着した軸受組立体は、金属粉
を圧縮成形，焼結およびサイジングした後に油含浸して
焼結含油軸受を形成し、通常はその後に、この軸受を金
属製や樹脂製などのハウジングに圧入やカシメあるいは
接着等の手段により装着して形成されている。<< Conventional technology >> For example, like cabstan bearings for audio equipment,
A bearing assembly in which a sintered bearing is mounted on a housing is formed by compressing, sintering, and sizing metal powder and then impregnating the oil to form a sintered oil-impregnated bearing. It is formed by mounting on a housing such as by press fitting, caulking or bonding.
また、前記の油含浸の方法は、焼結体を油中に浸漬お
よび減圧して行われるのであるが、焼結含油軸受として
油浸漬した後にハウジングに組み付ける方法、ハウジン
グに焼結軸受を組み付けたのちに油含浸する方法などが
ある。Further, the method of oil impregnation is performed by immersing the sintered body in oil and depressurizing the oil. Later, there is a method of impregnating the oil.
《発明が解決しようとする課題》 しかして、この焼結含油軸受組立体の形状が複雑であ
ったり高精度を要求される等のような場合には、ハウジ
ングに焼結軸受を組み付けた後に機械加工で仕上げられ
るのであるが、このとき焼結軸受がすでに含油されてい
ると、加工時に発生する切粉が焼結軸受に付着しその除
去が困難となり、軸と摺動するときアブレシブ摩耗の原
因になる。<< Problems to be Solved by the Invention >> However, in the case where the shape of the sintered oil-impregnated bearing assembly is complicated or when high precision is required, etc. If the sintered bearing is already impregnated at this time, the chips generated during processing will adhere to the sintered bearing and it will be difficult to remove it, causing abrasive wear when sliding with the shaft. become.
そのため、油含浸は焼結軸受を組み立てるとともに、
これを機械加工して切粉を切除したのちに行う方法が望
ましいことになる。Therefore, oil impregnation assembles sintered bearings,
It would be desirable to do this after machining to remove the chips.
しかしながら、このような方法では、ハウジングに油
が付着するために、表面がべとついて装置に組み付ける
際に用いられるパーツフィーダ内でスムーズに流れない
という問題がある。However, such a method has a problem in that oil adheres to the housing and the surface is sticky and does not flow smoothly in a parts feeder used when assembling the apparatus.
また、表面に付着した油を除去するにしても、手間が
かかるとともに、油が無駄に消費されることになり経済
的にも問題がある。Further, even if the oil adhering to the surface is removed, it is troublesome and the oil is wastefully consumed, which is economically problematic.
この発明は、上記のような事情に鑑みてなされたもの
であり、その目的とするところは、ハウジングに不要な
油が付着しない焼結含軸受組立体、およびその製造方法
を提供することにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sintered bearing assembly in which unnecessary oil does not adhere to a housing, and a method of manufacturing the same. .
《課題を解決するための手段》 この発明は、上記のような目的を達成するために、請
求項１記載の発明の如く、焼結含油軸受がハウジングに
装着された軸受組立体において、ハウジング表面に油反
発性のある固体被膜を備えていることを特徴とする焼結
含油軸受組立体を提供する。<< Means for Solving the Problems >> In order to achieve the above object, the present invention provides a bearing assembly in which a sintered oil-impregnated bearing is mounted on a housing as described in the first aspect of the present invention. A sintered oil-impregnated bearing assembly, characterized in that the sintered oil-impregnated bearing assembly is provided with an oil-repellent solid coating.
また、より好適な油反発性を有する固体被膜を備える
ものとして、請求項２記載の発明の如く、固体被膜が弗
素樹脂またはポリプロピレン樹脂であることを特徴とす
る焼結含油軸受組立体を提供する。In addition, the present invention provides a sintered oil-impregnated bearing assembly in which the solid coating is made of a fluorine resin or a polypropylene resin, as provided with a solid coating having a more suitable oil resilience. .
さらに、請求項１または２記載の発明に係わる焼結含
油軸受組立体の好適な製造方法として、請求項３記載の
発明の如く、焼結含油軸受がハウジングに装着された軸
受組立体の製造において、油反発性のある固体被膜を施
したハウジングに多孔質焼結軸受部材を組み付けるとと
もに、その後にこの多孔質焼結軸受部材を油含浸するこ
とを特徴とする焼結含油軸受組立体の製造方法を提供す
る。Further, as a preferred method for manufacturing a sintered oil-impregnated bearing assembly according to the first or second aspect of the present invention, there is provided a method for manufacturing a bearing assembly in which a sintered oil-impregnated bearing is mounted on a housing. A method for manufacturing a sintered oil-impregnated bearing assembly, comprising: assembling a porous sintered bearing member in a housing provided with a solid coating having oil repellency, and thereafter impregnating the porous sintered bearing member with oil. I will provide a.
なお、油反発性のある固体被膜は、有機溶剤に溶かし
た樹脂溶液に浸漬するか噴霧後に乾燥して得ることがで
きる。The solid film having oil repellency can be obtained by dipping in a resin solution dissolved in an organic solvent or by drying after spraying.
さらに、固体被膜の厚さは極くわずかでよく、余り厚
いとかえって焼結軸受を組み付ける際に一部が剥離して
軸受摺動面を汚染するおそれがあり、好ましくは５μｍ
以下にすべきである。Further, the thickness of the solid coating may be very small, and if it is too thick, a part may be peeled off when the sintered bearing is assembled, and the sliding surface of the bearing may be contaminated.
You should:
《作用》 ハウジングの表面に油反発性のある固体被膜を施して
おくと、装着された焼結軸受とともにハウジングを油中
に投入して取り出した時に、ハウジング表面の油は皮膜
と濡れ性が悪く接触角が大きいために水玉のようにな
り、振動や遠心力等により簡単に振り落とすことができ
るようになる。<< Operation >> If a solid coating with oil repulsion is applied to the surface of the housing, the oil on the housing surface will have poor wettability with the coating when the housing is put into and taken out of oil with the mounted sintered bearing. Since the contact angle is large, it becomes like a polka dot, and can be easily shaken off by vibration or centrifugal force.
そのため、余分な油が付着していないハウジングを容
易に得ることができる。Therefore, it is possible to easily obtain a housing to which extra oil is not attached.
また、含油しない焼結軸受組立体の状態で必要な箇所
の加工を行うため、切粉の除去が容易であり、かつ焼結
軸受組立体の状態で油含浸しても、上述のようにハウジ
ングに対する付着油の除去が容易なため清浄な焼結含油
軸受組立体が得られる。In addition, since necessary parts are processed in the state of the oil-impregnated sintered bearing assembly, chips can be easily removed. A clean sintered oil-impregnated bearing assembly can be obtained because the oil adhering to the bearing is easily removed.
《実施例》 以下、請求項１乃至３記載の発明の一実施例を詳細に
説明する。<< Embodiment >> Hereinafter, an embodiment of the invention described in claims 1 to 3 will be described in detail.
まず、フランジ付き円筒形状の亜鉛ダイカスト製の軸
受ハウジングと、弗素樹脂溶液，アクリル樹脂溶液，ポ
リプロピレン樹脂溶液、およびシリコン樹脂溶液を準備
した。First, a cylindrical zinc die-cast bearing housing with a flange, a fluorine resin solution, an acrylic resin solution, a polypropylene resin solution, and a silicone resin solution were prepared.
上記構成の各軸受ハウジングに、４種類の樹脂溶液を
それぞれ塗布するとともに、乾燥して厚さ約２μｍの被
膜を施したのちその重量を測定した。Four types of resin solutions were applied to the bearing housings having the above-described configurations, respectively, and dried to form a coating having a thickness of about 2 μm, and the weight was measured.
そして、それぞれの軸受ハウジングを合成油（粘度:4
0℃で100cSt）に浸漬し、油中より取り出して油の付着
重量を測定した。Then, use a synthetic oil (viscosity: 4
It was immersed at 100 ° C. at 0 ° C., taken out of the oil, and the weight of the oil attached was measured.
次いで、各試料を1000rpmで回転できる篭の中にい
れ、１分間回転し油を振り落とした後、再度重量を測定
した。Next, each sample was placed in a basket capable of rotating at 1000 rpm, rotated for 1 minute to shake off the oil, and then weighed again.
第１表にこの測定結果を指数で示した。 Table 1 shows the results of this measurement as indices.
なお、指数は被膜を施さない試料を油から取り出した
のちの油付着量を100としてある。In addition, the index is set to 100 with the amount of oil adhering after taking out the sample without the coating from the oil.
このように、弗素樹脂またはポリプロピレン樹脂をコ
ーティングしたものは、付着油が水玉状で油の接触角が
大きいため、軽い衝撃や遠心力を与えることによりハウ
ジングの表面を乾いた感じの状態にすることができる。 In this way, the surface coated with the fluororesin or polypropylene resin has a polka dot shape and a large oil contact angle, so the surface of the housing can be made dry by applying a slight impact or centrifugal force. Can be.
なお、この実施例では、油付着量を分かりや易くする
ために、ハウジングに焼結軸受を装着していないが、組
立体の形で行っても同様な結果が得られる。In this embodiment, a sintered bearing is not mounted on the housing for easy understanding of the amount of oil adhesion. However, similar results can be obtained by performing the assembly in the form of an assembly.
《効果》 以上説明したように、請求項１記載の発明によれば、
焼結含油軸受がハウジングに装着された軸受組立体にお
いて、ハウジング表面に油反発性のある固体被膜を備え
るように構成したものであるから、ハウジングに含油し
ていない焼結軸受を組み付けて必要な加工等を施し、そ
の後に油含浸するという手順で製造することができ、切
粉による摺動不具合がない良質の焼結含油軸受組立体を
得ることができる。<< Effect >> As described above, according to the first aspect of the present invention,
In the bearing assembly in which the sintered oil-impregnated bearing is mounted on the housing, the housing is provided with an oil-repellent solid coating on the surface of the housing. It can be manufactured by a procedure of performing processing or the like and then impregnating with oil, and a high-quality sintered oil-impregnated bearing assembly free from sliding problems due to chips can be obtained.
また、油含浸によってハウジング部分に付着された油
は、容易に除去および回収することができるので、経済
的でありまた組立装置用パーツフィーダーで搬送不具合
を起こすことがなくなる等の効果がある。Further, the oil attached to the housing portion by the oil impregnation can be easily removed and recovered, so that it is economical and has an effect such that a transportation trouble does not occur in the parts feeder for the assembling apparatus.
また、請求項２記載の発明によれば、固体被膜が弗素
樹脂またはポリプロピレン樹脂であるように構成したも
のであるから、ハウジングに付着した付着油の除去が容
易であり、かつ清浄な軸受組立体を得るのに好適な油反
発性を有する固形被膜を提供することができる。According to the second aspect of the present invention, since the solid coating is made of a fluorine resin or a polypropylene resin, it is easy to remove oil adhering to the housing, and a clean bearing assembly is provided. To provide a solid coating having suitable oil resilience for obtaining
さらに、請求項３記載の発明によれば、焼結含油軸受
がハウジングに装着された軸受組立体の製造において、
油反発性のある固体被膜を施したハウジングに多孔質焼
結軸受部材を組み付けるとともに、その後にこの多孔質
焼結軸受部材を油含浸するように構成したものであるか
ら、上記請求項１及び２記載の発明に係わる焼結含油軸
受組立体を、容易に製造するのに好適な製造方法を提供
することができる。Further, according to the third aspect of the present invention, in the production of a bearing assembly in which the sintered oil-impregnated bearing is mounted on the housing,
The porous sintered bearing member is assembled to a housing provided with a solid coating having oil resilience, and then the porous sintered bearing member is impregnated with oil. It is possible to provide a manufacturing method suitable for easily manufacturing the sintered oil-impregnated bearing assembly according to the described invention.
Claims (3)
受組立体において、 ハウジング表面に油反発性のある固体被膜を備えている
ことを特徴とする焼結含油軸受組立体。1. A bearing assembly in which a sintered oil-impregnated bearing is mounted on a housing, wherein the oil-repellent solid coating is provided on a surface of the housing.
ン樹脂であることを特徴とする請求項１記載の焼結含油
軸受組立体。2. The sintered oil-impregnated bearing assembly according to claim 1, wherein the solid coating is a fluorine resin or a polypropylene resin.
受組立体の製造において、 油反発性のある固体被膜を施したハウジングに多孔質焼
結軸受部材を組み付けるとともに、その後にこの多孔質
焼結軸受部材を油含浸することを特徴とする焼結含油軸
受組立体の製造方法。3. A method of manufacturing a bearing assembly in which a sintered oil-impregnated bearing is mounted on a housing, wherein a porous sintered bearing member is assembled on a housing provided with an oil-repellent solid coating, and thereafter, the porous sintered bearing is mounted on the housing. A method for producing a sintered oil-impregnated bearing assembly, characterized by impregnating the bearing member with oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1334191A JP2606937B2 (en) | 1989-12-22 | 1989-12-22 | Sintered oil-impregnated bearing assembly and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1334191A JP2606937B2 (en) | 1989-12-22 | 1989-12-22 | Sintered oil-impregnated bearing assembly and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03194213A JPH03194213A (en) | 1991-08-23 |
| JP2606937B2 true JP2606937B2 (en) | 1997-05-07 |
Family
ID=18274561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1334191A Expired - Fee Related JP2606937B2 (en) | 1989-12-22 | 1989-12-22 | Sintered oil-impregnated bearing assembly and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2606937B2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52114906A (en) * | 1976-03-24 | 1977-09-27 | Hitachi Ltd | Small motor |
| JPS5913725U (en) * | 1982-07-19 | 1984-01-27 | 三旺電機株式会社 | oil-impregnated bearing |
| JPS6356311U (en) * | 1986-09-30 | 1988-04-15 | ||
| JPH01109254U (en) * | 1988-01-12 | 1989-07-24 |
-
1989
- 1989-12-22 JP JP1334191A patent/JP2606937B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03194213A (en) | 1991-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2798005A (en) | Porous metal bearing containing polytetrafluoroethylene and a solid lubricant | |
| JPH0419256B2 (en) | ||
| US3647500A (en) | Oil-free slider bearing material and method of making the material | |
| JP6938218B2 (en) | Friction material, method of manufacturing friction material, vibration type actuator and electronic equipment | |
| JP2606937B2 (en) | Sintered oil-impregnated bearing assembly and manufacturing method thereof | |
| KR20030035859A (en) | Silver containing copper alloys for journal bearings | |
| JPH0246928B2 (en) | ||
| JP2003269459A (en) | Sintering bearing manufacturing method | |
| GB2076590A (en) | Terminating solid electrolyte capacitors | |
| US8230599B2 (en) | Method of manufacturing hydrodynamic bearing | |
| US6951423B2 (en) | Sintered bearing and production method therefor | |
| JP2004308698A (en) | Bearing device and its manufacturing method, and motor equipped with bearing device and its manufacturing method | |
| CN109890539B (en) | Sintered bearing and its manufacturing method | |
| US5169724A (en) | Protectively coated electrical connector part | |
| JP3417015B2 (en) | Porous member and method for manufacturing the same | |
| US3247080A (en) | Method of making wear-resistant surfaces | |
| JPH0225053B2 (en) | ||
| JP2001210505A (en) | Rare earth bonded magnet of superior corrosion resistance and its manufacturing method | |
| US7033529B2 (en) | Plain bearing provided with a friction coating and method for making same | |
| JP2000015720A (en) | Resin coated bush and production thereof | |
| CN107489695B (en) | Rolling bearing, rotating machine element, and solid film forming method | |
| JPS6357914A (en) | Dynamic pressure groove bearing and manufacture thereof | |
| JPH08245810A (en) | Wet friction material | |
| JPH03229896A (en) | Method for impregnating anodized aluminum film with lubricant | |
| JPH03235651A (en) | Rust proofing method of sintered yoke member for voice coil motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |