JP6568578B2 - 焼結含油軸受及びその製造方法 - Google Patents
焼結含油軸受及びその製造方法 Download PDFInfo
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- 230000002093 peripheral effect Effects 0.000 claims description 61
- 239000000843 powder Substances 0.000 claims description 59
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 14
- 238000005245 sintering Methods 0.000 claims description 14
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- 229910052802 copper Inorganic materials 0.000 description 9
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
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- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
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- 238000012360 testing method Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
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- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
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- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
Images
Classifications
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- 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
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/103—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing
- F16C33/104—Construction relative to lubrication with liquid, e.g. oil, as lubricant retained in or near the bearing in a porous body, e.g. oil impregnated sintered sleeve
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- 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
- F16C17/026—Sliding-contact bearings for exclusively rotary movement for radial load only with helical grooves in the bearing surface to generate hydrodynamic pressure, e.g. herringbone grooves
-
- 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
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
- F16C33/1065—Grooves on a bearing surface for distributing or collecting the liquid
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- 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
- F16C33/14—Special methods of manufacture; Running-in
- F16C33/145—Special methods of manufacture; Running-in of sintered porous bearings
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- 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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/02—Mechanical properties
- F16C2202/10—Porosity
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- 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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/50—Lubricating properties
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- 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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/50—Lubricating properties
- F16C2202/52—Graphite
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- 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
- F16C2204/00—Metallic materials; Alloys
- F16C2204/10—Alloys based on copper
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- 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
- F16C2220/00—Shaping
- F16C2220/20—Shaping by sintering pulverised material, e.g. powder metallurgy
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- 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
- F16C2220/00—Shaping
- F16C2220/60—Shaping by removing material, e.g. machining
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- 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
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
- F16C2240/44—Hole or pocket sizes
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- 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
- F16C2360/00—Engines or pumps
- F16C2360/22—Internal combustion engines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sliding-Contact Bearings (AREA)
Description
この焼結含油軸受1は、金属粉末の焼結体により形成された筒状の軸受であり、図2に示すように、その軸受孔2の内周面に、軸11の外周面を支持する摺動面3と、軸11の外周面との間に隙間が形成される凹部4とが隣接して形成されている。本実施形態では給油面を形成するために凹部4を加工しており、その凹部4の内表面が給油面となるが、凹部加工以外の方法で給油面を形成してもよい。
なお、表1中、No.5は凹部を形成しなかったものであり、No.6は摺動面をすべて切削したものである。このため、No.5では凹部底面、No.6では摺動面についての表面開口率の欄を「−」で表した。
例えば、前記実施形態では給油面を1本の螺旋状に形成したが、sinθ≧(W/((1−a)×b))を満たす摺動面の面積比率aの範囲内で複数本形成してもよい。
2…軸受孔
3…摺動面
4…凹部(給油面)
6…空孔
7…緻密層
11…軸
20…成形金型
21…ダイプレート
21a…貫通孔
22…コアロッド
23…下パンチ
24…上パンチ
30…矯正金型
31…ダイプレート
32…コアロッド
33…下パンチ
33…両パンチ
34…上パンチ
P…原料粉末
P1…扁平状粉末
P2…粒状粉末
S…焼結体
S1…緻密層
Claims (5)
- 軸が挿入される軸受孔の内周面に、扁平状銅粉末を含む焼結体からなる緻密層が形成されるとともに、該緻密層の外側に前記緻密層より表面開口率の高い焼結層が一体に形成されてなる焼結含油軸受であって、前記軸受孔の内周面に、前記軸の外周面を支持する摺動面と、給油面とが隣接して形成されており、前記摺動面は、前記緻密層の表面であって、その表面開口率は10%以下であり、前記給油面は、前記表面開口率の高い焼結層が露出し、その表面開口率が10%を超えていることを特徴とする焼結含油軸受。
- 前記給油面は、前記軸受孔の軸心を中心とする螺旋状に形成されていることを特徴とする請求項1記載の焼結含油軸受。
- 前記軸受孔の両端部の内周面に、その全周にわたって前記摺動面が形成されていることを特徴とする請求項2記載の焼結含油軸受。
- 前記軸受孔の長さをb、前記軸心に対する前記給油面の螺旋角度をθ、前記給油面の幅をW、前記摺動面の面積比率をaとするとき、sinθ≧(W/((1−a)×b))であり、aが0.4以上1.0未満であることを特徴とする請求項2又は3記載の焼結含油軸受。
- 請求項1から3のいずれか一項記載の焼結含油軸受を製造する方法であって、金型のダイプレートとコアロッドとの間の筒状空間内に原料粉末を充填して加圧することにより圧粉体を成形する圧粉体成形工程と、前記圧粉体を焼結する焼結工程と、焼結後の圧粉体の内周面及び外周面を矯正する矯正工程と、矯正後の圧粉体の内周面に前記給油面を形成する給油面付与工程とを有し、前記圧粉体成形工程では、前記原料粉末として扁平状粉末と粒状粉末とを混合して充填するとともに、前記扁平状粉末を前記コアロッドの外周面上に偏在させた状態で加圧し、前記矯正工程では、前記圧粉体の内周面を塑性流動させることにより該内周面の表面開口率を小さくして緻密層を形成し、前記給油面付与工程では、前記緻密層を除去して前記給油面を形成することを特徴とする焼結含油軸受の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2015254810 | 2015-12-25 | ||
JP2015254810 | 2015-12-25 | ||
PCT/JP2016/087885 WO2017110778A1 (ja) | 2015-12-25 | 2016-12-20 | 焼結含油軸受及びその製造方法 |
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JPWO2017110778A1 JPWO2017110778A1 (ja) | 2018-07-12 |
JP6568578B2 true JP6568578B2 (ja) | 2019-08-28 |
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Country Status (5)
Country | Link |
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US (1) | US10570959B2 (ja) |
EP (1) | EP3396186B1 (ja) |
JP (1) | JP6568578B2 (ja) |
CN (1) | CN108431436B (ja) |
WO (1) | WO2017110778A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US11248654B2 (en) | 2017-11-15 | 2022-02-15 | Mitsubishi Materials Corporation | Oil impregnated sintered bearing and production method thereof |
JP6948251B2 (ja) * | 2017-12-26 | 2021-10-13 | 株式会社ダイヤメット | 焼結含油軸受及びその製造方法 |
CN111542713A (zh) | 2018-01-12 | 2020-08-14 | 伊格尔工业股份有限公司 | 滑动部件 |
KR102420417B1 (ko) | 2018-02-01 | 2022-07-13 | 이구루코교 가부시기가이샤 | 슬라이딩 부품 |
KR102634941B1 (ko) | 2019-02-04 | 2024-02-08 | 이구루코교 가부시기가이샤 | 슬라이딩 부품 |
CN118224175A (zh) | 2019-02-04 | 2024-06-21 | 伊格尔工业股份有限公司 | 滑动部件和滑动部件的制造方法 |
JP7230172B2 (ja) * | 2019-02-21 | 2023-02-28 | 三菱重工エンジン&ターボチャージャ株式会社 | ターボチャージャ |
JP7528219B2 (ja) | 2020-07-06 | 2024-08-05 | イーグル工業株式会社 | 摺動部品 |
CN115803548A (zh) | 2020-07-06 | 2023-03-14 | 伊格尔工业股份有限公司 | 滑动部件 |
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JP2012515303A (ja) * | 2009-01-12 | 2012-07-05 | ダウ グローバル テクノロジーズ エルエルシー | 改良されたジャーナル軸受構造 |
JP2013104560A (ja) | 2011-11-10 | 2013-05-30 | Samsung Electro-Mechanics Co Ltd | 流体動圧軸受アセンブリ及びそれを含むモータ |
WO2015050200A1 (ja) * | 2013-10-03 | 2015-04-09 | Ntn株式会社 | 焼結軸受、およびその製造方法 |
EP3054185B1 (en) | 2013-10-03 | 2024-02-21 | NTN Corporation | Manufacturing process of a sintered bearing |
CN104879386A (zh) * | 2015-06-23 | 2015-09-02 | 江苏鹰球集团有限公司 | 粉末冶金超低噪音长寿命含油轴承 |
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US20190003527A1 (en) | 2019-01-03 |
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