JP6601792B2 - ボールねじ - Google Patents
ボールねじ Download PDFInfo
- Publication number
- JP6601792B2 JP6601792B2 JP2015187525A JP2015187525A JP6601792B2 JP 6601792 B2 JP6601792 B2 JP 6601792B2 JP 2015187525 A JP2015187525 A JP 2015187525A JP 2015187525 A JP2015187525 A JP 2015187525A JP 6601792 B2 JP6601792 B2 JP 6601792B2
- Authority
- JP
- Japan
- Prior art keywords
- screw
- groove
- shaft
- circulation groove
- nut
- 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.)
- Active
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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
- 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
- F16H25/2214—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with elements for guiding the circulating balls
- F16H25/2223—Cross over deflectors between adjacent thread turns, e.g. S-form deflectors connecting neighbouring threads
-
- 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
- F16H25/2214—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with elements for guiding the circulating balls
-
- 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
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/04—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism
- F16H63/06—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions
- F16H63/062—Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions electric or electro-mechanical actuating means
-
- 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
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
- F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
- F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Description
図2に示すように、ボールねじ3のねじ軸4がプーリ側からみて右回転する場合、ベルト式無段変速機1は、プーリ10の可動シーブ10aが固定シーブ8aから離間する(図2黒塗矢印参照)。これにより、ベルト式無段変速機1は、伝動ベルト12の巻き掛け径Dが減少する方向に制御される。つまり、ベルト式無段変速機1は、伝動ベルト12が巻き掛けられている下流側(出力側)の図示しないプーリ10の回転速度を小さくするように変速する。
4 ねじ軸
4a 軸側ねじ溝
6 ナット
6a ナット側ねじ溝
7 ボール
15 こま部材
15c 第1循環溝
15d 第2循環溝
15e 第3循環溝
Claims (3)
- ねじ軸がナットに挿入され、ねじ軸のねじ溝とナットのねじ溝とから構成される転動路に複数のボールが配置され、転動路を周回経路とする循環溝が複数形成されたこま部材がねじ軸またはナットに設けられるボールねじにおいて、
こま部材に形成された複数の循環溝のうち、少なくとも一つの循環溝の周方向一側の端部が他の循環溝の周方向一側の端部よりも周方向一側または周方向他側にずれた位置に配置されるボールねじ。 - 前記複数の循環溝の中心が前記ねじ軸の軸心に対して所定の角度を有する直線上に配置される請求項1に記載のボールねじ。
- 前記複数の循環溝の中心が前記ねじ軸の軸心に対して20度以上60度以下の範囲で任意の角度を有する直線上に配置される請求項1または請求項2に記載のボールねじ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015187525A JP6601792B2 (ja) | 2015-09-24 | 2015-09-24 | ボールねじ |
PCT/JP2016/077701 WO2017051799A1 (ja) | 2015-09-24 | 2016-09-20 | ボールねじ |
CN201680055264.4A CN108027027B (zh) | 2015-09-24 | 2016-09-20 | 滚珠丝杠 |
US15/762,392 US20180274640A1 (en) | 2015-09-24 | 2016-09-20 | Ball screw |
EP16848587.8A EP3354932B1 (en) | 2015-09-24 | 2016-09-20 | Ball screw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015187525A JP6601792B2 (ja) | 2015-09-24 | 2015-09-24 | ボールねじ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2017061993A JP2017061993A (ja) | 2017-03-30 |
JP6601792B2 true JP6601792B2 (ja) | 2019-11-06 |
Family
ID=58386736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015187525A Active JP6601792B2 (ja) | 2015-09-24 | 2015-09-24 | ボールねじ |
Country Status (5)
Country | Link |
---|---|
US (1) | US20180274640A1 (ja) |
EP (1) | EP3354932B1 (ja) |
JP (1) | JP6601792B2 (ja) |
CN (1) | CN108027027B (ja) |
WO (1) | WO2017051799A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11655885B2 (en) * | 2019-12-06 | 2023-05-23 | Pacific Bearing Corp. | Multiliner for multiple start ball nut threads |
EP4165323A4 (en) * | 2020-06-16 | 2024-03-20 | Excess Eng As | REVERSE BALL SCREW ACTUATOR |
US20220228651A1 (en) * | 2021-01-19 | 2022-07-21 | Shark Wheel, Inc. | Continuously variable transmission system |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3628621A1 (de) * | 1986-08-22 | 1988-03-24 | Manfred Holzer Kugelgewindespi | Kugelgewindetrieb |
JP3844922B2 (ja) * | 1999-11-04 | 2006-11-15 | Ntn株式会社 | ボールねじおよびそれを具備する電動パワーステアリング装置 |
JP3844943B2 (ja) * | 2000-04-03 | 2006-11-15 | Ntn株式会社 | ボールねじおよびそれを具備する電動パワーステアリング装置 |
CN100344898C (zh) * | 2001-09-12 | 2007-10-24 | 株式会社捷太格特 | 滚珠丝杠装置 |
WO2007013266A1 (ja) * | 2005-07-29 | 2007-02-01 | Thk Co., Ltd. | ねじ装置の製造方法及びねじ装置 |
US20120090419A1 (en) * | 2008-08-05 | 2012-04-19 | Chang-Hsin Kuo | Multi-cycle ball screw |
US20100031763A1 (en) * | 2008-08-05 | 2010-02-11 | Chang-Hsin Kuo | Multi-Cycle Ball Screw |
JP5505727B2 (ja) * | 2010-10-04 | 2014-05-28 | 株式会社ジェイテクト | ボールねじ装置、リニアアクチュエータ、および車両用操舵装置 |
US20130220047A1 (en) * | 2010-11-15 | 2013-08-29 | Nsk Ltd | Ball Screw |
TWI444543B (zh) * | 2011-11-28 | 2014-07-11 | Hiwin Tech Corp | Internal recirculating ball screw |
US8935967B2 (en) * | 2012-12-20 | 2015-01-20 | Hiwin Technologies Corp. | Roller element retainer for ball screw device |
JP5818925B2 (ja) * | 2014-02-13 | 2015-11-18 | Thk株式会社 | ボールねじ装置 |
CN204572991U (zh) * | 2015-04-27 | 2015-08-19 | 芜湖三行轴承有限公司 | 一种内循环式滚珠丝杠副 |
-
2015
- 2015-09-24 JP JP2015187525A patent/JP6601792B2/ja active Active
-
2016
- 2016-09-20 WO PCT/JP2016/077701 patent/WO2017051799A1/ja active Application Filing
- 2016-09-20 EP EP16848587.8A patent/EP3354932B1/en active Active
- 2016-09-20 CN CN201680055264.4A patent/CN108027027B/zh active Active
- 2016-09-20 US US15/762,392 patent/US20180274640A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP3354932A4 (en) | 2020-07-01 |
EP3354932B1 (en) | 2024-05-29 |
CN108027027A (zh) | 2018-05-11 |
WO2017051799A1 (ja) | 2017-03-30 |
JP2017061993A (ja) | 2017-03-30 |
EP3354932A1 (en) | 2018-08-01 |
US20180274640A1 (en) | 2018-09-27 |
CN108027027B (zh) | 2021-08-13 |
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