JPS6034514A - Bearing - Google Patents
BearingInfo
- Publication number
- JPS6034514A JPS6034514A JP59035981A JP3598184A JPS6034514A JP S6034514 A JPS6034514 A JP S6034514A JP 59035981 A JP59035981 A JP 59035981A JP 3598184 A JP3598184 A JP 3598184A JP S6034514 A JPS6034514 A JP S6034514A
- Authority
- JP
- Japan
- Prior art keywords
- treatment layer
- surface treatment
- bushing
- soft metal
- inner circumferential
- 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.)
- Granted
Links
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)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、ハウジングの内面にプッシュヶ嵌挿し、該ブ
ツシュ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暑支承するに好適な軸受に関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention provides a bearing that is push-fitted into the inner surface of a housing and has a solid lubricant embedded in the sliding surface of the bushing against the shaft to maintain a lubricated state at all times. In particular, the present invention relates to a bearing suitable for thermally supporting a shaft that rotates at a low speed while receiving a high 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ュ、２はブツシュ１内を挿通して
支承された軸を示している。前記ブツシュ１の軸２との
摺動面には、ブツシュ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，ＭＯ８２等の固体潤滑剤（バインダーとしてワ
ッ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 bushing fitted into the inner surface of the housing, and reference numeral 2 indicating a shaft supported by passing through the bushing 1. A plurality of holes 3 penetrating from the inner circumferential surface 1a to the outer circumferential surface of the bushing 1 are formed on the sliding surface of the bushing 1 with respect to the shaft 2, and each hole 3 is filled with PTFE.
, C, MO82 (including a mixture of wax and additives as a binder) 4 is embedded therein.
前記の軸受け、従来はブツシュ１の内周１ＮｉｌａＫ１
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によって内周面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、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ュ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、前記ブツシュ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、ブツシュ１が早期に摩耗してしまう。The above bearing, conventionally, the inner circumference 1NilaK1 of the bushing 1
A solid lubricant or grease containing a solid lubricant is applied to improve the conformability at the initial stage (until the inner circumferential surface 1a is lubricated by the solid lubricant 4). 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, at the beginning, Bush 1
The inner peripheral surface 1a and the shaft 2 are metal contacts (metal contact)
This causes an adhesion phenomenon to occur on the inner circumferential surface 1a. If an adhesion phenomenon occurs, since the bushing 1 is generally made of a copper alloy or the like, its ability to repair the adhesion (returning action) is small and seizure may occur. Further, even if seizure does not occur, if the adhesion phenomenon is repeated, the bushing 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ュの内周面と軸とのなじみ性を良
好にして初期時にかける焼付き及びブツシュの摩耗を防
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暑提供せんと
するものである。The purpose of the present invention is to eliminate the drawbacks of the prior art as described above,
It is possible 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 during the initial stage, and to improve the seizure resistance and wear resistance during subsequent operation. The bearing is intended to provide heat.
前記の目的を達成せんがため、本発明は、ブツシュの内
周面に修復能力の大きい軟金属の表面処理層ビ形成する
と共に、その軟金属表面処理層とブツシュとの間に硬い
表面処理層を形成したことを特徴とする。In order to achieve the above object, the present invention forms a soft metal surface treatment layer with a high repair ability on the inner peripheral surface of the bushing, and a hard surface treatment layer is formed between the soft metal surface treatment layer and the bushing. It is characterized by the formation of
〔発明の実施例〕 以下、本発明の詳細を添付図面に従って説明する。[Embodiments of the invention] 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ヶ示す断面図で、
ブツシュ１１は、その内側に支承する軸１２を挿通させ
ている。またブツシュ１１の内周面１１ａには、該内周
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Ｐ Ｔ Ｆ Ｅ ＊ Ｃ＋ ＭＯ
８２等の固体潤滑剤１４ヲ埋め込んである。またブツシ
ュＩＪの内周面（固体潤滑剤１４の露出部分ケも含む）
１１ａには、修復能力の大きい軟金属から成る表面処理
Ｒ１５が形成されている。該表面処理層１５ヲ形成する
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、メッキ、化成処理、酸化被膜法等によ
り生成される。FIG. 2 is a sectional view showing one embodiment of the bearing according to the present invention.
The bush 11 has a supporting shaft 12 inserted thereinto. Further, a plurality of holes 13 are formed in the inner circumferential surface 11a of the bushing 11, penetrating from the inner circumferential surface 11a to the outer circumferential surface.
A solid lubricant 14 such as 82 is embedded. In addition, the inner peripheral surface of the bush IJ (including the exposed portion of the solid lubricant 14)
11a is formed with a surface treatment R15 made of a soft metal with a high repair ability. The soft metal used to form the surface treatment layer 15 is tin, lead, gold, silver, etc., and the surface treatment layer 15 is produced by plating, chemical conversion treatment, oxide coating method, or the like.
また、前記軟金属からなる表面処理層１５とブツシュ１
１との間には、前記軟金属表面処理層１５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ッキにより
形成させた後、これビ加熱して錫の一部をブツシュ１１
の母材金属に拡散させることによって行なう。Further, the surface treatment layer 15 made of the soft metal and the bush 1
1, a surface treatment layer 16 harder than the soft metal surface treatment layer 15 is formed. Formation of this surface treatment layer 16 is as follows:
For example, after forming tin as the soft metal surface treatment layer by plating, it is heated to remove a portion of the tin from the bush 11.
This is done by diffusing it into the base metal.
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。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, and since the surface treatment layer 15 is a soft metal and has high lubricity, it has good conformability. becomes good.
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、ｌ＝−
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］２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
ツシュ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。従って、凝着
現象に基因する焼付き、あるいはブツシュ１１の摩耗が
防止される。Further, the contact between the surface treatment layer 15 and the shaft 12 is a kind of metal contact, but the surface treatment layer 15 has a large repair ability and can repair the adhesion phenomenon, so that at the initial stage, l=-
This prevents burn-in. Further, when the shaft 12 rotates for a certain period of time and the surface treatment layer 15 is worn out due to sliding on the shaft 12, the surface treatment layer 16 and the shaft 2 come into contact with each other. Since a film of the solid lubricant 14 is formed on the sliding surface of the bushing 11 due to the temperature rise of the sliding portion, adhesion does not occur. Therefore, seizure or wear of the bushing 11 due to adhesion is prevented.
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。Furthermore, at this time, the shaft 12 and the surface treatment layer 16 slide, and since the surface treatment layer 16 has high hardness, it has excellent wear resistance. It is possible to improve the seizure resistance and wear resistance during operation after drying.
〔発明の効果１
以上述べたように、本発明によれば、初期時におけるブ
ツシュの内周面と軸とのなじみ性が良好になって初期時
における焼付きおよびブツシュの摩耗を防止し、しかも
、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。[Effect of the invention 1 As described above, according to the present invention, the compatibility between the inner circumferential surface of the bushing and the shaft at the initial stage is improved, and seizure and wear of the bushing at the initial stage are prevented. This has the effect of improving seizure resistance and wear resistance during subsequent operation.
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・・・ブツシュ、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。
特許出願人 日立建機株式会社
代理人弁理士 秋 本 正 実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... Bush, 11a... Inner peripheral surface, 12...
Shaft, 13... Hole, 14... Solid lubricant, 15...
Soft metal surface treatment layer, 16...hard surface treatment layer. Patent applicant: Hitachi Construction Machinery Co., Ltd. Representative Patent Attorney Masami Akimoto
Claims (1)
との摺動面に固体潤滑剤を埋み込んでその固体潤滑剤に
より潤滑すべくなした軸受にｆｉ、−１，・て、前記ブ
ツシュの内周面に修復能力の大きい軟金属の表面処理層
を形成すると共に、その軟金属表面処理層とブツシュと
の間に硬し・表面処理層を形成したことを特徴とする軸
受。A bushing is inserted into the inner surface of the housing song, and a solid lubricant is embedded in the sliding surface of the bushing with the shaft, and the bearing is lubricated by the solid lubricant. A bearing characterized in that a surface treatment layer of a soft metal having a high repair ability is formed on an inner circumferential surface, and a hardening/surface treatment layer is formed between the soft metal surface treatment layer and a bushing.
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 true JPS6034514A (en) | 1985-02-22 |
| JPS6134006B2 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) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT397985B (en) * | 1992-08-24 | 1994-08-25 | Miba Gleitlager Ag | Articulation device for a component that can be pivoted to a limited extent |
| AT398323B (en) * | 1992-06-10 | 1994-11-25 | Elin Energieversorgung | DEVICE FOR RAMMING A FOUNDATION PREFERABLY FOR A MAST |
| KR100656649B1 (en) * | 2000-12-31 | 2006-12-12 | 두산인프라코어 주식회사 | spindle bearing support structure for high speed |
| CN110411749A (en) * | 2018-04-27 | 2019-11-05 | 西门子股份公司 | For determining method, control device and the driver of bearing load |
-
1984
- 1984-02-29 JP JP59035981A patent/JPS6034514A/en active Granted
Cited By (5)
| 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 |
| CN110411749A (en) * | 2018-04-27 | 2019-11-05 | 西门子股份公司 | For determining method, control device and the driver of bearing load |
| US11060933B2 (en) | 2018-04-27 | 2021-07-13 | Siemens Aktiengesellschaft | Method for determining loading of a bearing, a computer program product, a control facility and a drive |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6134006B2 (en) | 1986-08-05 |
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