JPS6134005B2 - - Google Patents
Info
- Publication number
- JPS6134005B2 JPS6134005B2 JP59035980A JP3598084A JPS6134005B2 JP S6134005 B2 JPS6134005 B2 JP S6134005B2 JP 59035980 A JP59035980 A JP 59035980A JP 3598084 A JP3598084 A JP 3598084A JP S6134005 B2 JPS6134005 B2 JP S6134005B2
- Authority
- JP
- Japan
- Prior art keywords
- bush
- shaft
- solid lubricant
- bearing
- treatment layer
- 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
- 239000000314 lubricant Substances 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 13
- 239000002335 surface treatment layer Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000004519 grease Substances 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
【発明の詳細な説明】
本発明はハウジングの内面にブツシユを嵌挿
し、該ブツシユの軸との摺動面に固体潤滑剤を埋
め込んで常に潤滑状態を保てるようにした軸受に
係り、特に高荷重を受けて低速回転する軸を支承
するに好適な軸受に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bearing in which a bush is fitted into the inner surface of a housing and a solid lubricant is embedded in the sliding surface of the bush against the shaft so that a lubricated state can always be maintained. The present invention relates to a bearing suitable for supporting a shaft that rotates at a low speed.
第１図はこの種の従来の軸受を示し、１はハウ
ジング内面に嵌挿されたブツシユ、２はブツシユ
１内を挿通して支承された軸を示している。前記
ブツシユ１の軸２との摺動面には、ブツシユ１の
内周面１ａから外周面まで貫通する複数個の穴３
が形成され、その各穴３にPTFE，Ｃ，M0S2等
の固体潤滑剤（バインダーとしてワツクス及び添
加剤を混合したものも含む）４を埋め込んであ
る。 FIG. 1 shows a conventional bearing of this type, with reference numeral 1 indicating a bush fitted into the inner surface of the housing, and reference numeral 2 indicating a shaft supported by passing through the bush 1. The sliding surface of the bush 1 with the shaft 2 has a plurality of holes 3 penetrating from the inner circumferential surface 1a of the bush 1 to the outer circumferential surface.
A solid lubricant 4 such as PTFE, C, M 0 S 2 or the like (including a mixture of wax and additives as a binder) is embedded in each hole 3 of the lubricant.
前記の軸受は、従来はブツシユ１の内周面１ａ
に、固体潤滑剤または固体潤滑剤入グリースを塗
布して初期時（固体潤滑剤４によつて内周面１ａ
が潤滑されるまで）のなじみ性を良くするように
している。しかし、前記固体潤滑剤または固体潤
滑剤入りグリースの被膜は、ブツシユ１との密着
強度が弱いためすぐに剥離して所期の目的を果す
ことができない。その結果、初期時においてブツ
シユ１の内周面１と軸２とがメタルコンタクト
（金属接触）を起して、内周面１ａで凝着現象が
発生してしまう。そして凝着現象が生じた場合、
前記ブツシユ１は一般に銅合金等で作られている
ため、凝着の修復能力（もとに戻す作用）が小さ
く、焼付きが発生してしまう。また、焼付きまで
いかなくても前記凝着現象の繰り返しが行われる
と、ブツシユ１が早期に摩耗してしまう。 Conventionally, the above-mentioned bearing is mounted on the inner circumferential surface 1a of the bush 1.
At the initial stage (with solid lubricant 4, the inner peripheral surface 1a is coated with solid lubricant or grease containing solid lubricant).
(until it is lubricated). However, the film of the solid lubricant or the grease containing the solid lubricant has a weak adhesion strength to the bush 1, so it easily peels off and cannot serve the intended purpose. As a result, metal contact occurs between the inner circumferential surface 1 of the bush 1 and the shaft 2 at the initial stage, and an adhesion phenomenon occurs on the inner circumferential surface 1a. And if an adhesion phenomenon occurs,
Since the bushing 1 is generally made of a copper alloy or the like, its ability to repair adhesion (returning action) is low, resulting in seizure. Furthermore, even if seizure does not occur, the bush 1 will wear out prematurely if the adhesion phenomenon is repeated.
本発明の目的は、従来技術の欠点を解消し、初
期時におけるブツシユの内周面と軸とのなじみ性
を良好して、初期時における焼付き及びブツシユ
の摩耗を防止できる軸受を提供するにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a bearing that eliminates the drawbacks of the prior art, improves the compatibility between the inner circumferential surface of the bushing and the shaft at the initial stage, and prevents seizure and wear of the bushing at the initial stage. be.
この目的を達成するために、本発明の軸受は、
ブツシユの軸との摺動面である内周面に、修復能
力の大きい軟金属を被覆することにより生成され
る表面処理層を形成したことを特徴とするもので
ある。 To achieve this objective, the bearing of the present invention
This is characterized in that the inner circumferential surface, which is the sliding surface on the shaft of the bush, is coated with a surface treatment layer produced by coating a soft metal with a high repair ability.
以下、本発明の詳細を図面に従つて説明する。
第２図は本発明による軸受の一実施例を示す断面
図で、ブツシユ１１は、その内側に支承する軸１
２を挿通させている。またブツシユ１１の内周面
１１ａから外周面まで貫通する複数個の穴１３が
形成され、その各穴１３にPTFE，Ｃ，M0S2等
の固体潤滑剤１４を埋め込んである。またブツシ
ユ１１の内周面（固体潤滑剤１４の露出部分をも
含む）１１ａには、修復能力の大きい軟金属から
成る表面処理層１５が形成されている。該表面処
理層１５を形成する軟金属としては、錫、鉛、
金，銀等が用いられ、かつ表面処理層１５は、メ
ツキ、酸化被膜法等により生成される。 The details of the present invention will be explained below with reference to the drawings.
FIG. 2 is a sectional view showing an embodiment of the bearing according to the present invention, in which the bush 11 has a shaft 1 supported therein.
2 is inserted. Further, a plurality of holes 13 are formed that penetrate from the inner peripheral surface 11a to the outer peripheral surface of the bush 11, and a solid lubricant 14 such as PTFE, C, M0S2 , etc. is embedded in each hole 13. Further, on the inner circumferential surface 11a of the bush 11 (including the exposed portion of the solid lubricant 14), a surface treatment layer 15 made of a soft metal with a high repair ability is formed. The soft metal forming the surface treatment layer 15 includes tin, lead,
Gold, silver, etc. are used, and the surface treatment layer 15 is produced by plating, oxide film method, etc.
本発明による軸受は、前記の如き構成よりなる
ので、初期時においては前記表面処理層１５が軸
１２と接触することになり、この表面処理層１５
は軟金属で潤滑性に富むので、なじみ性が良好と
なる。また表面処理層１５と軸１２との接触は、
一種のメタルコンタクトではあるが、該表面処理
層１５は修復能力が大きくて凝着現象を修復させ
るので、初期時における焼付きが防止される。ま
た、軸１２がある時間回転してその軸１２との摺
動により前記表面処理層１５が摩減した場合に
は、ブツシユ１１の母材と軸１２とが接触するこ
とになるが、この時点では摺動部の温度上昇によ
りブツシユ１１の内周面１１ａに固体潤滑剤１４
の被膜が生成されるので、凝着現象が発生するこ
とはない。従つて、凝着現象に基因する焼付き、
あるいはブツシユ１１の摩耗が防止される。 Since the bearing according to the present invention has the above-mentioned configuration, the surface treatment layer 15 comes into contact with the shaft 12 at the initial stage.
Since it is a soft metal and has rich lubricity, it has good conformability. Further, the contact between the surface treatment layer 15 and the shaft 12 is as follows.
Although it is a type of metal contact, the surface treatment layer 15 has a large repair ability and can repair the adhesion phenomenon, thereby preventing seizure in the initial stage. Further, if the surface treatment layer 15 is worn out due to the shaft 12 rotating for a certain period of time and sliding with the shaft 12, the base material of the bush 11 and the shaft 12 will come into contact, but at this point In this case, the solid lubricant 14 is applied to the inner circumferential surface 11a of the bush 11 due to the temperature rise of the sliding part.
Since a film of 100% is formed, no adhesion phenomenon occurs. Therefore, seizure due to adhesion phenomenon,
Alternatively, wear of the bush 11 is prevented.
以上説明したように、本発明によれば、初期時
におけるブツシユの内周面と軸とのなじみ性が良
好になると共に、焼付き及びブツシユの摩耗を防
止することができる。 As described above, according to the present invention, the compatibility between the inner circumferential surface of the bush and the shaft at the initial stage is improved, and seizing and wear of the bush can be prevented.
第１図は従来の軸受の断面図、第２図は本発明
による軸受の一実施例を示す断面図である。
１１……ブツシユ、１１ａ……内周面、１２…
…軸、１３……穴、１４……固体潤滑剤、１５…
…表面処理層。
FIG. 1 is a sectional view of a conventional bearing, and FIG. 2 is a sectional view showing an embodiment of the bearing according to the present invention. 11...button, 11a...inner peripheral surface, 12...
...Shaft, 13... Hole, 14... Solid lubricant, 15...
...Surface treatment layer.
Claims (1)
ツシユの軸との摺動面に固体潤滑剤を埋め込んで
その固体潤滑剤により潤滑すべくなした軸受にお
いて、前記ブツシユの軸との摺動面である内周面
に、修復能力の大きい軟金属を被覆することによ
り生成される表面処理層を形成したことを特とす
る軸受。1. In a bearing in which a bush is fitted into the inner surface of the housing and a solid lubricant is embedded in the sliding surface of the bush to be lubricated by the solid lubricant, the sliding surface of the bush is the sliding surface of the bush. A bearing characterized in that a surface treatment layer is formed on the inner peripheral surface by coating a soft metal with a high repair ability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3598084A JPS59166714A (en) | 1984-02-29 | 1984-02-29 | Bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3598084A JPS59166714A (en) | 1984-02-29 | 1984-02-29 | Bearing |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59035981A Division JPS6034514A (en) | 1984-02-29 | 1984-02-29 | Bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59166714A JPS59166714A (en) | 1984-09-20 |
| JPS6134005B2 true JPS6134005B2 (en) | 1986-08-05 |
Family
ID=12457032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3598084A Granted JPS59166714A (en) | 1984-02-29 | 1984-02-29 | Bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59166714A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0229309Y2 (en) * | 1986-06-25 | 1990-08-07 | ||
| AT397985B (en) * | 1992-08-24 | 1994-08-25 | Miba Gleitlager Ag | Articulation device for a component that can be pivoted to a limited extent |
| JP4688161B2 (en) * | 2006-03-30 | 2011-05-25 | 大同メタル工業株式会社 | Sliding member and coating layer forming method thereof |
| JP2007270895A (en) * | 2006-03-30 | 2007-10-18 | Daido Metal Co Ltd | Sliding member and method for forming coating layer thereof |
| EP3533354B1 (en) | 2016-10-28 | 2022-02-23 | YKK Corporation | Male member of snap fastener and snap fastener |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552747A (en) * | 1978-06-21 | 1980-01-10 | Oiles Ind Co Ltd | Sliding member and its preparation |
-
1984
- 1984-02-29 JP JP3598084A patent/JPS59166714A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552747A (en) * | 1978-06-21 | 1980-01-10 | Oiles Ind Co Ltd | Sliding member and its preparation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59166714A (en) | 1984-09-20 |
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