JP2009115120A - ボールスプライン - Google Patents
ボールスプライン Download PDFInfo
- Publication number
- JP2009115120A JP2009115120A JP2007285697A JP2007285697A JP2009115120A JP 2009115120 A JP2009115120 A JP 2009115120A JP 2007285697 A JP2007285697 A JP 2007285697A JP 2007285697 A JP2007285697 A JP 2007285697A JP 2009115120 A JP2009115120 A JP 2009115120A
- Authority
- JP
- Japan
- Prior art keywords
- spline
- ball
- shaft
- groove
- shoulder
- 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
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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
-
- 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
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/068—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track
- F16C29/0683—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque
- F16C29/0685—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque with balls
- F16C29/0688—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a rail or rod of circular cross-section, i.e. the linear bearing is not suited to transmit torque with balls whereby a sleeve surrounds the circulating balls and thicker part of the sleeve form the load bearing tracks
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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
- F16H2025/204—Axial sliding means, i.e. for rotary support and axial guiding of nut or screw shaft
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- 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
- Y10T74/19—Gearing
- Y10T74/19642—Directly cooperating gears
- Y10T74/19698—Spiral
- Y10T74/19702—Screw and nut
- Y10T74/19744—Rolling element engaging thread
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
【解決手段】 スプライン用ボール循環路の主通路18は、ねじ軸1のスプラインみぞ7を周方向の両側から挟む肩部21,22,23がねじ軸1外周に、スプライン用外筒3のスプラインみぞ7を周方向の両側から挟む肩部24,25,26がスプライン用外筒3にそれぞれ設けられることで形成されている。各肩部21,22,23,24,25,26とスプライン用ボール5との間に回転方向隙間が設けられている。すべての主通路18にあるスプライン用ボール5が時計方向および反時計方向の両方向のトルクを負担する。
【選択図】図3
Description
各エンドキャップ(9)のナット本体(8)側の端面に、主通路(11)と戻し通路(12)を連通させるみぞ状の方向転換路(13)が形成されている。
(2) ねじ用ナット
(3) スプライン用外筒
(4) ねじ用ボール
(5) スプライン用ボール
(6) おねじみぞ
(7) スプラインみぞ
(10) めねじみぞ
(16) スプラインみぞ
(18A)(18B) 主通路
(19) 戻し通路
(19A)(19B) 戻し通路
(21)(22)(23)ねじ軸側肩部
(24)(25)(26)ナット側主通路用肩部
(31)(32) ナット側戻し通路用肩部
Claims (3)
- 軸方向にのびる複数の直線状スプラインみぞが外周面に形成された軸と、軸が通されて軸のスプラインみぞに対応するスプラインみぞが形成された外筒と、軸と外筒との間に配設された複数のボールとを備えており、軸のスプラインみぞおよび外筒のスプラインみぞによって形成された主通路と主通路の両端部に連通する戻し通路とによってボール循環路が形成されているボールスプラインにおいて、
軸のスプラインみぞを周方向の両側から挟む肩部が軸の外周に、ナットのスプラインみぞを周方向の両側から挟む肩部がナットの内周に、各肩部とボールとの間に回転方向隙間が形成されるようにそれぞれ設けられており、すべての主通路にあるボールが時計方向および反時計方向の両方向のトルクを負担することを特徴とするボールスプライン。 - 戻し通路の主通路と平行な部分は、この部分を周方向の両側から挟む肩部がナット内周および軸外周にそれぞれ設けられることで形成されており、肩部とボールとの間の回転方向隙間が主通路の回転方向隙間よりも大きくなされて、過大トルク負荷時に戻し通路にあるボールがトルクを負担することを特徴とする請求項1のボールスプライン。
- 軸の外周面にねじみぞが形成されており、軸が通されて軸のねじみぞに対応するねじ用ボール循環路が形成されたねじ用ナットと、ねじ用ナットのねじ用ボール循環路に配設された複数のねじ用ボールとをさらに備えていることを特徴とする請求項1または2のボールスプライン。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007285697A JP4978430B2 (ja) | 2007-11-02 | 2007-11-02 | ボールスプライン |
EP08018985.5A EP2055990B1 (en) | 2007-11-02 | 2008-10-30 | Ball spline |
US12/289,683 US8141448B2 (en) | 2007-11-02 | 2008-10-31 | Ball spline |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007285697A JP4978430B2 (ja) | 2007-11-02 | 2007-11-02 | ボールスプライン |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009115120A true JP2009115120A (ja) | 2009-05-28 |
JP4978430B2 JP4978430B2 (ja) | 2012-07-18 |
Family
ID=40342269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007285697A Expired - Fee Related JP4978430B2 (ja) | 2007-11-02 | 2007-11-02 | ボールスプライン |
Country Status (3)
Country | Link |
---|---|
US (1) | US8141448B2 (ja) |
EP (1) | EP2055990B1 (ja) |
JP (1) | JP4978430B2 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009103228A (ja) * | 2007-10-24 | 2009-05-14 | Jtekt Corp | ボールスプライン付きボールねじ |
WO2012129417A1 (en) * | 2011-03-22 | 2012-09-27 | Bombardier Recreational Products Inc. | Continuously variable transmission driving pulley |
CA2847108A1 (en) | 2011-08-31 | 2013-03-07 | Bombardier Recreational Products Inc. | Continuously variable transmission drive pulley |
CN102628500B (zh) * | 2012-04-19 | 2014-07-09 | 西北工业大学 | 一种可消除轴向间隙的行星滚柱丝杠机构 |
JP5962977B2 (ja) * | 2012-07-09 | 2016-08-03 | 株式会社ジェイテクト | ラック軸支持装置およびこれを用いたステアリング装置 |
US9476433B2 (en) | 2014-03-24 | 2016-10-25 | SH PAC Co., Ltd. | Rotary actuator |
JP6346822B2 (ja) * | 2014-08-04 | 2018-06-20 | 日本トムソン株式会社 | リニアブッシング |
US10527142B2 (en) * | 2016-05-23 | 2020-01-07 | Parker-Hannifin Corporation | Hydraulic rotary ball screw actuator |
US10612590B2 (en) | 2018-01-24 | 2020-04-07 | New-Field Energy, LLC | Buoyancy-enhanced helical loop drive system |
US11953080B1 (en) * | 2021-09-24 | 2024-04-09 | Apple Inc. | Shaft with surface finished ridges |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59140920A (ja) * | 1983-01-29 | 1984-08-13 | Hiroshi Teramachi | ボ−ルスプライン軸受 |
JPS61157826A (ja) * | 1984-12-28 | 1986-07-17 | Nippon Thompson Co Ltd | ボ−ルスプライン軸受 |
JPS63231056A (ja) * | 1987-03-18 | 1988-09-27 | Hiroshi Teramachi | 複合運動案内ユニツトおよびこれを用いた複合運動案内装置 |
JPH06300106A (ja) * | 1993-04-10 | 1994-10-28 | T H K Kk | 電動アクチュエータ |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2945366A (en) * | 1958-10-06 | 1960-07-19 | Beaver Prec Products Inc | Ball spline assembly |
US3494148A (en) * | 1967-09-29 | 1970-02-10 | North American Rockwell | Recirculating ball slip joint assembly |
JPS63140111A (ja) * | 1986-12-03 | 1988-06-11 | Nippon Thompson Co Ltd | 駆動装置付きボ−ルスプライン軸受 |
US4945779A (en) * | 1987-12-22 | 1990-08-07 | Hr Textron, Inc. | Ball screw rotary actuator |
-
2007
- 2007-11-02 JP JP2007285697A patent/JP4978430B2/ja not_active Expired - Fee Related
-
2008
- 2008-10-30 EP EP08018985.5A patent/EP2055990B1/en not_active Expired - Fee Related
- 2008-10-31 US US12/289,683 patent/US8141448B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59140920A (ja) * | 1983-01-29 | 1984-08-13 | Hiroshi Teramachi | ボ−ルスプライン軸受 |
JPS61157826A (ja) * | 1984-12-28 | 1986-07-17 | Nippon Thompson Co Ltd | ボ−ルスプライン軸受 |
JPS63231056A (ja) * | 1987-03-18 | 1988-09-27 | Hiroshi Teramachi | 複合運動案内ユニツトおよびこれを用いた複合運動案内装置 |
JPH06300106A (ja) * | 1993-04-10 | 1994-10-28 | T H K Kk | 電動アクチュエータ |
Also Published As
Publication number | Publication date |
---|---|
US20090116770A1 (en) | 2009-05-07 |
EP2055990A2 (en) | 2009-05-06 |
US8141448B2 (en) | 2012-03-27 |
JP4978430B2 (ja) | 2012-07-18 |
EP2055990B1 (en) | 2017-09-20 |
EP2055990A3 (en) | 2009-08-19 |
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