JP5307477B2 - ロッカーアーム用カムフォロアおよびカムフォロア装置 - Google Patents
ロッカーアーム用カムフォロアおよびカムフォロア装置 Download PDFInfo
- Publication number
- JP5307477B2 JP5307477B2 JP2008212466A JP2008212466A JP5307477B2 JP 5307477 B2 JP5307477 B2 JP 5307477B2 JP 2008212466 A JP2008212466 A JP 2008212466A JP 2008212466 A JP2008212466 A JP 2008212466A JP 5307477 B2 JP5307477 B2 JP 5307477B2
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- roller
- side plate
- support shaft
- cam follower
- 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
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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
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/06—Cam-followers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/181—Centre pivot rocking arms
-
- 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
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
-
- 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
- F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
-
- 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
- F16C2360/18—Camshafts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2101—Cams
- Y10T74/2107—Follower
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Rolling Contact Bearings (AREA)
- Gears, Cams (AREA)
Description
Claims (5)
- 外周面がカムに当接する円筒形状の外輪と、前記外輪を支持する支持軸と、これら支持軸および外輪間の環状領域に配置される複数のころと、前記支持軸が貫通する平坦なリング形状の円盤であって前記ころの端面と向き合い、外径が前記外輪の内径よりも小さい側板とを備え、
前記側板は、表面硬度がHv550以上であり、表面粗さが算術平均粗さRa0.8μm以下であり、前記ころの両端にそれぞれ配置され、前記ころの軸長をLk、前記外輪の軸長をLr、前記側板の厚みをtとすると、Lk<Lr<Lk+2tを満たし、
前記側板の外径は前記外輪の内径よりも小さく、これら側板の外縁と外輪の内周面との間に外方から潤滑油を流し込む環状隙間を確保する、ロッカーアーム用カムフォロア。 - 前記ころのピッチ円径をPCDとし、前記側板の外径をDsとすると、PCD<Dsを満たす、請求項1に記載のロッカーアーム用カムフォロア。
- 前記外輪、前記支持軸、および前記ころの全てが窒素富化層を有し、
支持軸およびころの少なくとも一方の部材における前記窒素富化層のオーステナイト結晶粒が、粒度番号の10番を超えて微細化され、かつ、前記部材における前記窒素富化層の残留オーステナイト量が11体積%以上25体積%以下であり、かつ、前記部材における前記窒素富化層の窒素含有量が0.1質量%以上0.7質量%以下である、請求項1または2に記載のロッカーアーム用カムフォロア。 - 前記ころの転動面および前記ころが転走する前記外輪の内周面のうち、少なくとも一方がクラウニング部を有する、請求項1〜3のいずれかに記載のロッカーアーム用カムフォロア。
- 1対の脚部を有する揺動部材と、
前記一対の脚部間に架設される支持軸と、
前記支持軸に回転自在に支持され、外周面、内周面、および端面を有し、前記外周面はカムに当接する円筒形状の外輪と、
これら支持軸および外輪間の環状領域に配置される複数のころと、
前記支持軸が貫通する平坦なリング形状の円盤であって外径が前記外輪の内径よりも小さく、前記ころの端面と前記脚部との間に配置される側板とを備え、
前記側板は、表面硬度がHv550以上であり、表面粗さが算術平均粗さRa0.8μm以下であり、前記ころの両端にそれぞれ配置され、前記ころの軸長をLk、前記外輪の軸長をLr、前記側板の厚みをtとすると、Lk<Lr<Lk+2tを満たし、
前記側板の外径は前記外輪の内径よりも小さく、これら側板の外縁と外輪の内周面との間に外方から潤滑油を受け入れる環状隙間を確保する、カムフォロア装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008212466A JP5307477B2 (ja) | 2008-08-21 | 2008-08-21 | ロッカーアーム用カムフォロアおよびカムフォロア装置 |
CN200980132670.6A CN102132071B (zh) | 2008-08-21 | 2009-07-22 | 摇臂用凸轮从动件及凸轮从动件装置 |
PCT/JP2009/063115 WO2010021223A1 (ja) | 2008-08-21 | 2009-07-22 | ロッカーアーム用カムフォロアおよびカムフォロア装置 |
US13/057,826 US20110132304A1 (en) | 2008-08-21 | 2009-07-22 | Cam follower for rocker arm and cam follower device |
US14/576,508 US9500269B2 (en) | 2008-08-21 | 2014-12-19 | Cam follower for rocker arm and cam follower device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008212466A JP5307477B2 (ja) | 2008-08-21 | 2008-08-21 | ロッカーアーム用カムフォロアおよびカムフォロア装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010048320A JP2010048320A (ja) | 2010-03-04 |
JP5307477B2 true JP5307477B2 (ja) | 2013-10-02 |
Family
ID=41707101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008212466A Expired - Fee Related JP5307477B2 (ja) | 2008-08-21 | 2008-08-21 | ロッカーアーム用カムフォロアおよびカムフォロア装置 |
Country Status (4)
Country | Link |
---|---|
US (2) | US20110132304A1 (ja) |
JP (1) | JP5307477B2 (ja) |
CN (1) | CN102132071B (ja) |
WO (1) | WO2010021223A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101956805B (zh) * | 2010-09-27 | 2012-07-18 | 河南柴油机重工有限责任公司 | 滚轮残余应力截断法弧形成型的工艺方法 |
JP5905665B2 (ja) * | 2011-02-08 | 2016-04-20 | 本田技研工業株式会社 | ロッカーアーム装置 |
FR3010167B1 (fr) * | 2013-08-27 | 2015-10-02 | Skf Ab | Element de transmission |
EP2853698B1 (en) * | 2013-09-27 | 2016-06-01 | Aktiebolaget SKF | Cam follower, injection pump and valve actuator comprising such a cam follower and manufacturing method |
US20150198230A1 (en) * | 2014-01-13 | 2015-07-16 | Electro-Motive Diesel Inc. | Cam follower assembly having swaged bushing |
DE102015200102A1 (de) * | 2015-01-08 | 2016-02-18 | Schaeffler Technologies AG & Co. KG | Nockenfolger |
DE102016206838A1 (de) * | 2016-04-22 | 2017-10-26 | Schaeffler Technologies AG & Co. KG | Schlepphebel für eine Brennkraftmaschine |
JP2017198903A (ja) * | 2016-04-28 | 2017-11-02 | キヤノン株式会社 | 駆動装置 及び撮像装置 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6139875Y2 (ja) * | 1980-12-08 | 1986-11-14 | ||
JPS6139875A (ja) | 1984-07-30 | 1986-02-26 | Shin Kobe Electric Mach Co Ltd | 電磁ブレ−キ駆動回路 |
US4614171A (en) * | 1985-07-05 | 1986-09-30 | W H Industries Inc. | Rocker arm construction |
JP2527161B2 (ja) | 1986-05-19 | 1996-08-21 | 三菱電機株式会社 | 電動機のベクトル制御演算装置 |
JP2527161Y2 (ja) * | 1989-03-28 | 1997-02-26 | ジャトコ 株式会社 | 遊星歯車装置のキャリア組立体 |
JP2590701Y2 (ja) * | 1990-02-22 | 1999-02-17 | 日本精工株式会社 | エンジンの動弁機構用カムフォロア装置 |
JPH0625606A (ja) | 1991-08-19 | 1994-02-01 | Osaka Gas Co Ltd | ワックス組成物 |
JP2508561B2 (ja) | 1991-11-28 | 1996-06-19 | 日本電気株式会社 | 整流回路 |
JP2508562B2 (ja) | 1992-01-10 | 1996-06-19 | ヤマハ株式会社 | 繊維強化熱可塑性樹脂成形品の製法 |
JP2590701B2 (ja) | 1993-08-26 | 1997-03-12 | 日本電気株式会社 | 半導体記憶装置 |
US6199527B1 (en) * | 1998-03-12 | 2001-03-13 | Nsk Ltd. | Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof |
JP2002235753A (ja) * | 2001-02-09 | 2002-08-23 | Ntn Corp | シェル型ころ軸受 |
JP4062156B2 (ja) * | 2003-04-10 | 2008-03-19 | 株式会社ジェイテクト | カムフォロア |
JP4486411B2 (ja) * | 2003-06-05 | 2010-06-23 | Ntn株式会社 | ローラ付きカムフォロア |
JP4737954B2 (ja) * | 2004-08-02 | 2011-08-03 | Ntn株式会社 | ロッカーアーム用転がり軸受 |
JP4368765B2 (ja) * | 2004-08-26 | 2009-11-18 | Ntn株式会社 | ロッカーアーム用転がり軸受 |
CN1985100B (zh) * | 2005-01-18 | 2010-12-08 | 日本精工株式会社 | 滚动装置 |
EP2312173A1 (en) * | 2006-10-26 | 2011-04-20 | NTN Corporation | Retainer for rocking bearing, and air disc brake |
JP6025606B2 (ja) | 2013-02-22 | 2016-11-16 | 三菱重工業株式会社 | 燃料セタン価推定方法及び装置 |
-
2008
- 2008-08-21 JP JP2008212466A patent/JP5307477B2/ja not_active Expired - Fee Related
-
2009
- 2009-07-22 WO PCT/JP2009/063115 patent/WO2010021223A1/ja active Application Filing
- 2009-07-22 CN CN200980132670.6A patent/CN102132071B/zh not_active Expired - Fee Related
- 2009-07-22 US US13/057,826 patent/US20110132304A1/en not_active Abandoned
-
2014
- 2014-12-19 US US14/576,508 patent/US9500269B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2010021223A1 (ja) | 2010-02-25 |
US20150101449A1 (en) | 2015-04-16 |
CN102132071B (zh) | 2015-04-15 |
US20110132304A1 (en) | 2011-06-09 |
US9500269B2 (en) | 2016-11-22 |
CN102132071A (zh) | 2011-07-20 |
JP2010048320A (ja) | 2010-03-04 |
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