JPS6134006B2 - - Google Patents
Info
- Publication number
- JPS6134006B2 JPS6134006B2 JP59035981A JP3598184A JPS6134006B2 JP S6134006 B2 JPS6134006 B2 JP S6134006B2 JP 59035981 A JP59035981 A JP 59035981A JP 3598184 A JP3598184 A JP 3598184A JP S6134006 B2 JPS6134006 B2 JP S6134006B2
- Authority
- JP
- Japan
- Prior art keywords
- treatment layer
- surface treatment
- bush
- shaft
- solid lubricant
- 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
- 239000002335 surface treatment layer Substances 0.000 claims description 29
- 239000000314 lubricant Substances 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000007747 plating Methods 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
- 239000000654 additive Substances 0.000 description 1
- 239000010953 base metal 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
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011133 lead 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
- 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
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
-
- 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
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/122—Multilayer structures of sleeves, washers or liners
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Sliding-Contact Bearings (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 low speed under load.
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を含む）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りグリースを
塗布して初期時（固体潤滑剤４によつて内周面１
ａ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、その密着強度が弱い
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１ａ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）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.
Apply solid lubricant or grease containing solid lubricant to the initial stage (inner peripheral surface 1 with solid lubricant 4)
(a) is made to have good conformability until it is lubricated. However, the coating of the solid lubricant or the grease containing the solid lubricant has a weak adhesion strength, so it easily peels off and cannot serve the intended purpose. As a result, metal contact occurs between the inner circumferential surface 1a of the bush 1 and the shaft 2 at the initial stage, and an adhesion phenomenon occurs on the inner circumferential surface 1a. If adhesion occurs, the bushing 1 is generally made of copper alloy or the like, so its ability to repair the adhesion (returning action to its original state) is low, and seizure may occur. Further, even if seizure does not occur, if the adhesion phenomenon is repeated, the bush 1 will wear out prematurely.
本発明の目的は、前記の如き従来技術の欠点を
解消し、初期時におけるブツシユの内周面と軸と
のなじめ性を良好にして初期時における焼付き及
びブツシユの摩耗を防止すると共に、その後の運
転時における耐焼付き性および耐摩耗性を向上さ
せることができる軸受を提供せんとするものであ
る。
An object of the present invention is to eliminate the drawbacks of the prior art as described above, to improve the compatibility between the inner circumferential surface of the bushing and the shaft at the initial stage, to prevent seizure and wear of the bushing at the initial stage, and to prevent seizure and wear of the bushing at the initial stage. It is an object of the present invention to provide a bearing that can improve seizure resistance and wear resistance during operation.
前記の目的を達成せんがため、本発明は、ブツ
シユの軸との摺動面である内周面上に、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
表面処理層を形成させると共に、その表面処理層
とブツシユとの間に該表面処理層より硬い表面処
理層を形成させて、前記ブツシユの内周面に硬さ
の異なる表面処理層を形成させたことを特徴とす
る。
In order to achieve the above object, the present invention forms a surface treatment layer produced by coating a soft metal with a high repair ability on the inner peripheral surface which is the sliding surface with the shaft of the bush. , a surface treatment layer harder than the surface treatment layer is formed between the surface treatment layer and the bush, and a surface treatment layer having a different hardness is formed on the inner peripheral surface of the bush.
以下、本発明の詳細を添付図面に従つて説明す
る。
The details of the present invention will be explained below with reference to the accompanying drawings.
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
１２を挿通させている。またブツシユ１１の内周
面１１ａには、該内周面１１ａから外周面まで貫
通す複数個の穴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。 FIG. 2 is a sectional view showing an embodiment of the bearing according to the present invention, in which a bush 11 has a shaft 12 supported inside thereof inserted. Further, a plurality of holes 13 are formed in the inner circumferential surface 11a of the bush 11, and each hole 13 penetrates from the inner circumferential surface 11a to the outer circumferential surface.
A solid lubricant 14 such as PTFE, C, M0S2 , etc. is embedded therein. 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. As the soft metal forming the surface treatment layer 15, tin, lead, gold, silver, etc. are used, and the surface treatment layer 15 is produced by plating, oxide film method, etc.
また、前記軟金属からなる表面処理層１５とブ
ツシユ１１との間には、前記軟金属表面処理層１
５より硬い表面処理層１６を形成する。この表面
処理層１６の形成は、例えば、前記軟金属表面処
理層として錫をメツキにより形成させた後、これ
を加熱して錫の一部をブツシユ１１の母材金属に
拡散させることによつて行なう。 Further, between the surface treatment layer 15 made of soft metal and the bush 11, the soft metal surface treatment layer 1
A surface treatment layer 16 that is harder than 5 is formed. The surface treatment layer 16 is formed by, for example, forming tin as the soft metal surface treatment layer by plating, and then heating it to diffuse a part of the tin into the base metal of the bush 11. Let's do it.
本発明による軸受は、前記の如き構成よりなる
ので、初期時において前記表面処理層１５が軸１
２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、なじめ性が良好とな
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が摩滅した場合に
は、表面処理層１６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の摺動面に固体潤滑剤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。さらに、このと
きには軸１２と表面処理層１６とが摺動すること
となり、この表面処理層１６は硬度が高いため、
耐摩耗性に優れており、このため、軟金属の表面
処理層１５が摩滅した後の運転時における耐焼付
き性および耐摩耗性を向上させることができる。 Since the bearing according to the present invention has the above-described configuration, the surface treatment layer 15 is initially applied to the shaft 1.
Since this surface treatment layer 15 is made of a soft metal and has high lubricity, it has good compatibility. Although the contact between the surface treatment layer 15 and the shaft 12 is a kind 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, when the shaft 12 rotates for a certain period of time and the surface treatment layer 15 is worn away by sliding on the shaft 12, the surface treatment layer 16 and the shaft 12 will come into contact with each other, but at this point the sliding Since a film of the solid lubricant 14 is formed on the sliding surface of the bush 11 due to the rise in temperature of the moving parts, adhesion does not occur.
Therefore, seizure or wear of the bush 11 due to adhesion is prevented. Furthermore, at this time, the shaft 12 and the surface treatment layer 16 will slide, and since the surface treatment layer 16 has high hardness,
It has excellent abrasion resistance, and therefore, it is possible to improve the seizure resistance and abrasion resistance during operation after the soft metal surface treatment layer 15 has been worn away.
以上述べたように、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
になつて初期時における焼付きおよびブツシユの
摩耗を防止し、その後の運転時における耐焼付き
性および耐摩耗性を向上させることができる効果
がある。
As described above, according to the present invention, the compatibility between the inner circumferential surface of the bushing and the shaft is good at the initial stage, preventing seizure and wear of the bushing at the initial stage, and providing fire resistance during subsequent operation. It has the effect of improving adhesion and wear resistance.
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…
…軟金属表面処理層、１６……硬い表面処理層。
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...
...Soft metal surface treatment layer, 16...Hard 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
上に、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させると共に、
その表面処理層とブツシユとの間に該表面処理層
より硬い表面処理層を形成させて、前記ブツシユ
の内周面に硬さの異なる表面処理層を形成させた
ことを特徴とする軸受。1. A bearing in which a bushing is fitted into the inner surface of a housing, a solid lubricant is embedded in the sliding surface of the bushing, and the sliding surface of the bushing is lubricated by the solid lubricant. A surface treatment layer is formed on the inner peripheral surface by coating a soft metal with a large repair ability, and
A bearing characterized in that a surface treatment layer harder than the surface treatment layer is formed between the surface treatment layer and the bush, and a surface treatment layer having a different hardness is formed on the inner peripheral surface of the bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59035981A JPS6034514A (en) | 1984-02-29 | 1984-02-29 | Bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59035981A JPS6034514A (en) | 1984-02-29 | 1984-02-29 | Bearing |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3598084A Division JPS59166714A (en) | 1984-02-29 | 1984-02-29 | Bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6034514A JPS6034514A (en) | 1985-02-22 |
| JPS6134006B2 true JPS6134006B2 (en) | 1986-08-05 |
Family
ID=12457057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59035981A Granted JPS6034514A (en) | 1984-02-29 | 1984-02-29 | Bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6034514A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT398323B (en) * | 1992-06-10 | 1994-11-25 | Elin Energieversorgung | DEVICE FOR RAMMING A FOUNDATION PREFERABLY FOR A MAST |
| AT397985B (en) * | 1992-08-24 | 1994-08-25 | Miba Gleitlager Ag | Articulation device for a component that can be pivoted to a limited extent |
| KR100656649B1 (en) * | 2000-12-31 | 2006-12-12 | 두산인프라코어 주식회사 | spindle bearing support structure for high speed |
| EP3561474B1 (en) | 2018-04-27 | 2020-12-30 | Siemens Aktiengesellschaft | Method for determining a load on a bearing, computer program product, control device and drive |
-
1984
- 1984-02-29 JP JP59035981A patent/JPS6034514A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6034514A (en) | 1985-02-22 |
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