WO1998021506A1 - Vorrichtung zur umwandlung einer drehbewegung in eine axialbewegung - Google Patents
Vorrichtung zur umwandlung einer drehbewegung in eine axialbewegung Download PDFInfo
- Publication number
- WO1998021506A1 WO1998021506A1 PCT/EP1997/005026 EP9705026W WO9821506A1 WO 1998021506 A1 WO1998021506 A1 WO 1998021506A1 EP 9705026 W EP9705026 W EP 9705026W WO 9821506 A1 WO9821506 A1 WO 9821506A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheet metal
- metal sleeve
- nut
- threaded spindle
- cage
- Prior art date
Links
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
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
- F16H25/2252—Planetary rollers between nut and screw
-
- 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
- Y10T74/19781—Non-recirculating rolling elements
- Y10T74/19791—Cylindrical or quasi-cylindrical roller element [e.g., inclined roller, etc.]
- Y10T74/19795—Parallel to shaft
Definitions
- the invention relates to a device for converting a rotary movement into an axial movement, with a threaded spindle, a nut concentrically surrounding this at a distance and a number of spaced-apart, axially parallel rollers guided by a cage, each having a circumferential profile with which they are engaged both with the external thread of the threaded spindle and with the corresponding internal thread of the nut, each roller being axially displaceable within the cage by the pitch of the thread during one revolution of the nut relative to the threaded spindle and at the end of such a rotation can be returned to the starting position within an axial groove of the nut by a cam arranged in each case in the vicinity of an end face of the cage.
- roller screw drive is known from DE-OS 21 50 739. This has a solid nut body and two likewise massive ring-shaped cam members, which engage with ring-shaped areas containing cam surfaces in ring-shaped end recesses of a cage for the rollers. With this execution tion is a high manufacturing cost, so that there is a very expensive construction.
- the invention has for its object to provide a roller screw drive that is simplified in construction and less expensive to manufacture.
- the nut is a thin-walled, chipless shaped sheet metal sleeve. In this way, a considerable reduction in material can be achieved, so that the device also has a lower weight.
- the sheet metal sleeve can be pressed into a bore in a housing accommodating the device. Pressing in gives the thin-walled, chipless-shaped sheet metal sleeve its dimensional and dimensional accuracy.
- the sheet metal sleeve can be drawn from a round blank. During the drawing process, the axial groove for the return of the rollers can be formed at the same time.
- the internal thread of the sheet metal sleeve can be produced by rolling.
- the thread can also be produced on the spindle and the profile grooves on the rollers can be produced by rolling.
- FIG. 1 shows a partial illustration of a device according to the invention, which is pressed into the bore of a housing, in an axial section;
- Figure 2 is a partial perspective view of a sheet metal sleeve of the device according to the invention with an inserted roller.
- the rollers 2 are arranged axially parallel to the threaded spindle 1 and have a profile with which they are in engagement both with the external thread of the threaded spindle 1 and with the internal thread of a nut which is arranged concentrically with the threaded spindle 1 and this in one surrounds the rollers 2 corresponding distance.
- this nut is designed as a thin-walled, chipless-shaped sheet metal sleeve 3.
- Their internal thread can be made by rolling. It is in a bore 4 of a housing 5, which in the axial direction of the thread despindel 1 to be moved component, pressed.
- the sheet metal sleeve 3 receives its dimensional and dimensional accuracy.
- the rollers 2, which surround the threaded spindle 1, are guided in a cage 6 within the sheet metal sleeve 3.
- the rollers 2 exert a planetary movement around the threaded spindle 1 within the sheet metal sleeve 3 and move in their recesses in the cage 6 in the axial direction in accordance with the pitch of the thread of the threaded spindle 1.
- a roller 2 has moved in each case by the pitch of the thread in the axial direction and must be returned to the starting position.
- the sheet metal sleeve 3 has an axially parallel groove 7, into which the roller 2 arrives after the rotation.
- it is no longer in engagement with the threaded spindle 1 and is returned to the starting position by a cam fastened in the sheet metal sleeve 3, in order then to come into engagement with the latter again when the threaded spindle 1 rotates further.
- Such a cam 8 is formed in the vicinity of an end face of the cage 6 on a board 9 of the sheet metal sleeve 3.
- a disk 10 is inserted into the sheet metal sleeve 3 and fixed in the sheet metal sleeve 3 after flanging the flange 11 provided there.
- This disc 10 has the second cam 12 of the device.
- either the first cam 8 or the second cam 12 acts on the roller 2 for the purpose of returning it to the starting position.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19781284A DE19781284C1 (de) | 1996-11-09 | 1997-09-15 | Vorrichtung zur Umwandlung einer Drehbewegung in eine Axialbewegung |
US09/284,429 US6170351B1 (en) | 1996-11-09 | 1997-09-15 | Device for converting a rotational movement into an axial movement |
DE19781284D DE19781284D2 (de) | 1996-11-09 | 1997-09-15 | Vorrichtung zur Umwandlung einer Drehbewegung in eine Axialbewegung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19646339.4 | 1996-11-09 | ||
DE19646339A DE19646339A1 (de) | 1996-11-09 | 1996-11-09 | Vorrichtung zur Umwandlung einer Drehbewegung in eine Axialbewegung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998021506A1 true WO1998021506A1 (de) | 1998-05-22 |
Family
ID=7811184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/005026 WO1998021506A1 (de) | 1996-11-09 | 1997-09-15 | Vorrichtung zur umwandlung einer drehbewegung in eine axialbewegung |
Country Status (3)
Country | Link |
---|---|
US (1) | US6170351B1 (de) |
DE (2) | DE19646339A1 (de) |
WO (1) | WO1998021506A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111779810A (zh) * | 2020-06-01 | 2020-10-16 | 北京精密机电控制设备研究所 | 一种行星滚柱丝杠 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19916288A1 (de) * | 1999-04-12 | 2000-10-19 | Schaeffler Waelzlager Ohg | Vorrichtung zur Umwandlung einer Drehbewegung in eine geradlinige Bewegung |
DE19919566A1 (de) * | 1999-04-29 | 2000-11-02 | Schaeffler Waelzlager Ohg | Vorrichtung zur Umwandlung einer Drehbewegung in eine geradlinige Bewegung |
US6648568B2 (en) * | 2001-01-18 | 2003-11-18 | Utica Enterprises, Inc. | Linear blind broaching machine |
US7044017B2 (en) * | 2003-06-09 | 2006-05-16 | Cornelius Charles C | Roller screw system |
WO2006031217A1 (en) * | 2004-09-09 | 2006-03-23 | Lawlor Shawn P | Roller screw system |
US20070266809A1 (en) * | 2006-05-18 | 2007-11-22 | Detlev Ziesel | Lift actuator and lift machine incorporating same |
FR2942016B1 (fr) | 2009-02-09 | 2011-07-29 | Sagem Defense Securite | Actionneur rotolineaire a rouleaux optimises |
DE102010022893A1 (de) * | 2010-06-07 | 2011-12-08 | Schaeffler Technologies Gmbh & Co. Kg | Mutter eines Planetenwälzgewindetriebes |
JP5345587B2 (ja) * | 2010-06-15 | 2013-11-20 | 株式会社日立製作所 | 回転直動変換機構 |
FR2984443B1 (fr) * | 2011-12-16 | 2014-01-17 | Skf Ab | Vis a rouleaux. |
DE102012204038A1 (de) * | 2012-02-28 | 2013-08-29 | Schaeffler Technologies AG & Co. KG | Planetenwälzgewindetrieb |
CN107120369A (zh) * | 2017-06-22 | 2017-09-01 | 芜湖伯特利汽车安全系统股份有限公司 | 适于车辆电子机械式制动系统的电卡钳 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2150739A1 (de) * | 1970-10-14 | 1972-04-20 | Skf Ind Trading & Dev | Rollenschraubgetriebe |
CH665459A5 (en) * | 1984-07-10 | 1988-05-13 | Gerhard Fuchsluger | Thread and roller drive for positioning mechanism - has convex tooth flanks on roller threads and larger radius concave flanks on nut and spindle |
EP0603067A1 (de) * | 1992-12-17 | 1994-06-22 | AEROSPATIALE Société Nationale Industrielle | Gewinderollenmechanismus für ein Raumfahrzeug und Linearstellglied mit einem solchen Mechanismus |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH410542A (de) * | 1962-07-14 | 1966-03-31 | Bruno Strandgren Carl | Rollschraube |
DE6930850U (de) * | 1969-08-04 | 1969-11-20 | Gerd Schaefer | Lattenrost fuer betten mit einem oder mehreren metallrahmen |
SE357241B (de) * | 1972-04-25 | 1973-06-18 | Skf Ind Trading & Dev | |
DE3902194A1 (de) * | 1989-01-26 | 1990-08-02 | Schaeffler Waelzlager Kg | Radial-waelzlager |
DE4131486C2 (de) * | 1991-09-21 | 1999-10-21 | Schaeffler Waelzlager Ohg | Kugelgewindetrieb |
US5370012A (en) * | 1993-03-08 | 1994-12-06 | Stanley; Richard B. | Linear actuation roller bearing nut |
DE19542453C2 (de) * | 1995-11-14 | 1998-05-20 | Karl Hehl | Vorrichtung zur Umwandlung einer Drehbewegung in eine Axialbewegung |
DE19540634C1 (de) * | 1995-10-31 | 1997-03-13 | Deutsche Forsch Luft Raumfahrt | Vorrichtung zur Umwandlung einer Dreh- in eine Axialbewegung |
-
1996
- 1996-11-09 DE DE19646339A patent/DE19646339A1/de not_active Withdrawn
-
1997
- 1997-09-15 WO PCT/EP1997/005026 patent/WO1998021506A1/de active Application Filing
- 1997-09-15 DE DE19781284A patent/DE19781284C1/de not_active Expired - Fee Related
- 1997-09-15 US US09/284,429 patent/US6170351B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2150739A1 (de) * | 1970-10-14 | 1972-04-20 | Skf Ind Trading & Dev | Rollenschraubgetriebe |
CH665459A5 (en) * | 1984-07-10 | 1988-05-13 | Gerhard Fuchsluger | Thread and roller drive for positioning mechanism - has convex tooth flanks on roller threads and larger radius concave flanks on nut and spindle |
EP0603067A1 (de) * | 1992-12-17 | 1994-06-22 | AEROSPATIALE Société Nationale Industrielle | Gewinderollenmechanismus für ein Raumfahrzeug und Linearstellglied mit einem solchen Mechanismus |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111779810A (zh) * | 2020-06-01 | 2020-10-16 | 北京精密机电控制设备研究所 | 一种行星滚柱丝杠 |
CN111779810B (zh) * | 2020-06-01 | 2022-04-08 | 北京精密机电控制设备研究所 | 一种行星滚柱丝杠 |
Also Published As
Publication number | Publication date |
---|---|
US6170351B1 (en) | 2001-01-09 |
DE19646339A1 (de) | 1998-05-14 |
DE19781284C1 (de) | 2000-12-07 |
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