WO2009038212A1 - Linear actuator - Google Patents

Linear actuator Download PDF

Info

Publication number
WO2009038212A1
WO2009038212A1 PCT/JP2008/067115 JP2008067115W WO2009038212A1 WO 2009038212 A1 WO2009038212 A1 WO 2009038212A1 JP 2008067115 W JP2008067115 W JP 2008067115W WO 2009038212 A1 WO2009038212 A1 WO 2009038212A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
drive motor
receiving
rotation
linear actuator
Prior art date
Application number
PCT/JP2008/067115
Other languages
French (fr)
Japanese (ja)
Inventor
Masaki Nagatsuka
Original Assignee
Thk Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Thk Co., Ltd. filed Critical Thk Co., Ltd.
Priority to JP2009533217A priority Critical patent/JP5185278B2/en
Publication of WO2009038212A1 publication Critical patent/WO2009038212A1/en

Links

Classifications

    • 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
    • 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

A linear actuator has a drive motor (2), a shaft section (4) for receiving the drive motor (2), an output member (5) rotatably connected to a rotating shaft (2a) of the drive motor and having, on its outer peripheral surface, a male thread section (5a), a driven member (6) placed on the outer peripheries of the output member and the shaft section and having, on its inner peripheral surface, a female thread section (6a) for receiving rotation of the male thread section, a rotation restriction section (10) for restricting relative rotation between the shaft section and the driven member, and a bearing section (12) for receiving a thrust load acting in the direction (C) of the axis of the rotating shaft. The linear actuator allows highly accurate positioning and feeding without causing the member to fluctuate about the rotation axis of the drive motor, has a relatively long linear motion stroke, has high strength against a thrust load, and enables a device using the actuator to be structured at low cost and compact in size.
PCT/JP2008/067115 2007-09-20 2008-09-22 Linear actuator WO2009038212A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009533217A JP5185278B2 (en) 2007-09-20 2008-09-22 Linear actuator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-243918 2007-09-20
JP2007243918 2007-09-20

Publications (1)

Publication Number Publication Date
WO2009038212A1 true WO2009038212A1 (en) 2009-03-26

Family

ID=40468021

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/067115 WO2009038212A1 (en) 2007-09-20 2008-09-22 Linear actuator

Country Status (3)

Country Link
JP (1) JP5185278B2 (en)
TW (1) TWI455458B (en)
WO (1) WO2009038212A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012067560A1 (en) * 2010-11-16 2012-05-24 Reac Ab Tubular actuator
WO2014079593A1 (en) * 2012-07-18 2014-05-30 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt Spindle drive
JP2015530271A (en) * 2013-08-29 2015-10-15 コリア インスティテュート オブ インダストリアル テクノロジー Piping internal inspection robot
CN106122407A (en) * 2015-05-04 2016-11-16 斯泰必鲁斯有限公司 Screw-driven assembly and the seat assembly with screw-driven assembly
ITUB20152649A1 (en) * 2015-07-30 2017-01-30 Innovative Eng Search Ltd ELECTRIC PISTON
JP2018532603A (en) * 2015-10-06 2018-11-08 インポッシブル インコーポレーテッド エルエルシーImpossible Incorporated Llc Snake robot
CN109417331A (en) * 2016-06-22 2019-03-01 Ntn株式会社 Electrodynamic type linear movement actuator
WO2019103124A1 (en) * 2017-11-27 2019-05-31 Ntn株式会社 Electrically driven actuator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5504539B2 (en) * 2011-04-13 2014-05-28 Ｓｍｃ株式会社 Linear actuator
JP6799946B2 (en) * 2016-05-26 2020-12-16 Ntn株式会社 Electric linear actuator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6485545A (en) * 1987-09-26 1989-03-30 Matsushita Electric Works Ltd Electrically-driven actuator
JPH03272354A (en) * 1990-03-20 1991-12-04 Tachi S Co Ltd Cylinder motor
JP2003250246A (en) * 2002-02-26 2003-09-05 Ntn Corp Direct-acting actuator
JP2005297839A (en) * 2004-04-14 2005-10-27 Toyota Motor Corp Active knee bolster

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4489199B2 (en) * 1999-01-29 2010-06-23 オリエンタルモーター株式会社 Linear actuator
JP2001231241A (en) * 2000-02-16 2001-08-24 Oriental Motor Co Ltd Linear actuator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6485545A (en) * 1987-09-26 1989-03-30 Matsushita Electric Works Ltd Electrically-driven actuator
JPH03272354A (en) * 1990-03-20 1991-12-04 Tachi S Co Ltd Cylinder motor
JP2003250246A (en) * 2002-02-26 2003-09-05 Ntn Corp Direct-acting actuator
JP2005297839A (en) * 2004-04-14 2005-10-27 Toyota Motor Corp Active knee bolster

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012067560A1 (en) * 2010-11-16 2012-05-24 Reac Ab Tubular actuator
WO2014079593A1 (en) * 2012-07-18 2014-05-30 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt Spindle drive
JP2015530271A (en) * 2013-08-29 2015-10-15 コリア インスティテュート オブ インダストリアル テクノロジー Piping internal inspection robot
CN106122407A (en) * 2015-05-04 2016-11-16 斯泰必鲁斯有限公司 Screw-driven assembly and the seat assembly with screw-driven assembly
JP2017017978A (en) * 2015-05-04 2017-01-19 スタビラス ゲ—エムベーハー Screw structural body and seat structure comprising screw structural body
ITUB20152649A1 (en) * 2015-07-30 2017-01-30 Innovative Eng Search Ltd ELECTRIC PISTON
JP7138942B2 (en) 2015-10-06 2022-09-20 エフエルエックス ソリューションズ， インコーポレーテッド snake robot
JP2018532603A (en) * 2015-10-06 2018-11-08 インポッシブル インコーポレーテッド エルエルシーImpossible Incorporated Llc Snake robot
US11780081B2 (en) 2015-10-06 2023-10-10 FLX Solutions, Inc. Snake-like robot
JP2022097667A (en) * 2015-10-06 2022-06-30 エフエルエックス ソリューションズ， インコーポレーテッド Serpentine type robot
JP7219836B2 (en) 2015-10-06 2023-02-08 エフエルエックス ソリューションズ， インコーポレーテッド Links for snake robots
CN109417331A (en) * 2016-06-22 2019-03-01 Ntn株式会社 Electrodynamic type linear movement actuator
WO2019103124A1 (en) * 2017-11-27 2019-05-31 Ntn株式会社 Electrically driven actuator
US11434953B2 (en) 2017-11-27 2022-09-06 Ntn Corporation Electric actuator
JP7105557B2 (en) 2017-11-27 2022-07-25 Ntn株式会社 electric actuator
JP2019097352A (en) * 2017-11-27 2019-06-20 Ntn株式会社 Electric actuator

Also Published As

Publication number Publication date
TWI455458B (en) 2014-10-01
JP5185278B2 (en) 2013-04-17
TW200934071A (en) 2009-08-01
JPWO2009038212A1 (en) 2011-01-13

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