JPWO2009038212A1 - リニアアクチュエータ - Google Patents
リニアアクチュエータ Download PDFInfo
- Publication number
- JPWO2009038212A1 JPWO2009038212A1 JP2009533217A JP2009533217A JPWO2009038212A1 JP WO2009038212 A1 JPWO2009038212 A1 JP WO2009038212A1 JP 2009533217 A JP2009533217 A JP 2009533217A JP 2009533217 A JP2009533217 A JP 2009533217A JP WO2009038212 A1 JPWO2009038212 A1 JP WO2009038212A1
- Authority
- JP
- Japan
- Prior art keywords
- rotation
- drive motor
- linear actuator
- driven member
- shaft
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 27
- 239000003638 chemical reducing agent Substances 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001145 finger joint Anatomy 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
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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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1735—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at only one end of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/204—Axial sliding means, i.e. for rotary support and axial guiding of nut or screw shaft
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2075—Coaxial drive motors
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H2025/2062—Arrangements for driving the actuator
- F16H2025/2087—Arrangements for driving the actuator using planetary gears
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Retarders (AREA)
Abstract
Description
本願は、2007年9月20日に日本に出願された特願2007−243918号に基づき優先権を主張し、その内容をここに援用する。
出力部材の回転を従動部材へ伝達するにあたり、この出力部材と従動部材とが前記回転軸周りに同期して回ってしまわないように、回り止めを設ける必要がある。
また、シャフト部は駆動モータを収容して保護するとともにその直径が装置全体の直径に対し比較的大径に形成されており、強度が良好に確保されているので、耐久性が高い。
よって従来のようにシャフト部の強度を確保するためのガイド機構等は必要なく、装置をコンパクトに構成することができる。
図1、図2は本発明の一実施形態に係るリニアアクチュエータの概略構成を示す側断面図、図3、図4は本発明の一実施形態に係るリニアアクチュエータの外観を示す斜視図である。尚、図1、図3はリニアアクチュエータが収縮した状態、図2、図4はリニアアクチュエータが伸展した状態を夫々示している。
図1において、このリニアアクチュエータ1はその全長が収縮され最短の状態とされている。
まず、駆動モータ2に制御部から電力を供給して回転軸2aを回転させると、これに連結される減速機3がこの回転を減速して出力軸3eに伝達し、この出力軸3eを軸線C周りに回転させる。
また逆に、このリニアアクチュエータ1を収縮させる際は、前述の回転方向と逆方向の回転を与えるように制御部から駆動モータ2へと電力を供給してやればよい。そして、図1に示すように、リニアアクチュエータ1が収縮され全長が最短となった状態において、リニアポテンショメータ7からの検出信号を受け取る制御部が駆動モータ2の回転を停止させる。
また減速機3として不思議遊星歯車機構を備えたものを用いているので、その減速比が非常に高く設定され、比較的小さな駆動モータ2であっても直線運動の推力を充分に確保することができる。従って、装置がよりコンパクトに構成される。
また、シャフト部4は駆動モータ2及び減速機3を収容しこれらを保護するとともにその直径が装置全体の直径に対し比較的大径に形成されており、強度が良好に確保されているので耐久性が高い。
Claims (5)
- 駆動モータと、
前記駆動モータを収容するシャフト部と、
前記駆動モータの回転軸に回転可能に連結されるとともに、その外周面に雄ねじ部を有する出力部材と、
前記出力部材及び前記シャフト部の外周に配置されるとともに、その内周面に前記雄ねじ部の回転を受ける雌ねじ部を有する従動部材と、
前記シャフト部と前記従動部材との相対的回転を規制する回転規制部と、
前記回転軸の軸線方向のスラスト荷重を受ける軸受け部と、を備えるリニアアクチュエータ。 - 前記回転規制部は、前記シャフト部の外周面に前記軸線方向に延在して設けられる回転規制溝と、前記従動部材に設けられるとともに、前記回転規制溝に係合する回転規制部材と、を備える請求項1に記載のリニアアクチュエータ。
- 前記シャフト部には、さらに前記駆動モータの回転を減速する減速機が収容され、
前記出力部材が、前記減速機の出力軸に設けられている請求項1または2に記載のリニアアクチュエータ。 - 前記シャフト部と前記従動部材との相対位置を検出する位置検出手段を備える請求項1または2に記載のリニアアクチュエータ。
- 前記シャフト部と前記従動部材との相対位置を検出する位置検出手段を備える請求項3に記載のリニアアクチュエータ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009533217A JP5185278B2 (ja) | 2007-09-20 | 2008-09-22 | リニアアクチュエータ |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007243918 | 2007-09-20 | ||
JP2007243918 | 2007-09-20 | ||
PCT/JP2008/067115 WO2009038212A1 (ja) | 2007-09-20 | 2008-09-22 | リニアアクチュエータ |
JP2009533217A JP5185278B2 (ja) | 2007-09-20 | 2008-09-22 | リニアアクチュエータ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2009038212A1 true JPWO2009038212A1 (ja) | 2011-01-13 |
JP5185278B2 JP5185278B2 (ja) | 2013-04-17 |
Family
ID=40468021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009533217A Active JP5185278B2 (ja) | 2007-09-20 | 2008-09-22 | リニアアクチュエータ |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP5185278B2 (ja) |
TW (1) | TWI455458B (ja) |
WO (1) | WO2009038212A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK177259B1 (da) * | 2010-11-16 | 2012-08-27 | Reac Ab | Røraktuator |
JP5504539B2 (ja) * | 2011-04-13 | 2014-05-28 | Smc株式会社 | リニアアクチュエータ |
DE102012014135A1 (de) * | 2012-07-18 | 2014-01-23 | Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt | Spindelantrieb |
KR101486895B1 (ko) * | 2013-08-29 | 2015-01-29 | 한국생산기술연구원 | 배관 내부검사용 로봇 |
DE102015208217A1 (de) * | 2015-05-04 | 2016-11-10 | Stabilus Gmbh | Gewindetriebanordnung und Sitzanordnung mit einer Gewindetriebanordnung |
ITUB20152649A1 (it) * | 2015-07-30 | 2017-01-30 | Innovative Eng Search Ltd | Pistone elettrico |
KR102623711B1 (ko) | 2015-10-06 | 2024-01-11 | 에프엘엑스 솔루션즈 인크. | 스네이크형 로봇 |
JP6799946B2 (ja) * | 2016-05-26 | 2020-12-16 | Ntn株式会社 | 電動式直動アクチュエータ |
JP6779673B2 (ja) * | 2016-06-22 | 2020-11-04 | Ntn株式会社 | 電動式直動アクチュエータ |
JP7105557B2 (ja) * | 2017-11-27 | 2022-07-25 | Ntn株式会社 | 電動アクチュエータ |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6485545A (en) * | 1987-09-26 | 1989-03-30 | Matsushita Electric Works Ltd | Electrically-driven actuator |
JPH03272354A (ja) * | 1990-03-20 | 1991-12-04 | Tachi S Co Ltd | シリンダモータ |
JP4489199B2 (ja) * | 1999-01-29 | 2010-06-23 | オリエンタルモーター株式会社 | リニアアクチュエータ |
JP2001231241A (ja) * | 2000-02-16 | 2001-08-24 | Oriental Motor Co Ltd | リニアアクチュエータ |
JP3977100B2 (ja) * | 2002-02-26 | 2007-09-19 | Ntn株式会社 | 直動アクチュエータ |
JP4182024B2 (ja) * | 2004-04-14 | 2008-11-19 | トヨタ自動車株式会社 | アクティブニーボルスター |
-
2008
- 2008-09-19 TW TW097136263A patent/TWI455458B/zh active
- 2008-09-22 JP JP2009533217A patent/JP5185278B2/ja active Active
- 2008-09-22 WO PCT/JP2008/067115 patent/WO2009038212A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JP5185278B2 (ja) | 2013-04-17 |
TWI455458B (zh) | 2014-10-01 |
TW200934071A (en) | 2009-08-01 |
WO2009038212A1 (ja) | 2009-03-26 |
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