WO1997001719A1 - Schraubgetriebe mit einer wälzringmutter - Google Patents
Schraubgetriebe mit einer wälzringmutter Download PDFInfo
- Publication number
- WO1997001719A1 WO1997001719A1 PCT/EP1996/002085 EP9602085W WO9701719A1 WO 1997001719 A1 WO1997001719 A1 WO 1997001719A1 EP 9602085 W EP9602085 W EP 9602085W WO 9701719 A1 WO9701719 A1 WO 9701719A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing
- housing
- ring
- rolling
- rolling ring
- 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
- F16H25/2285—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rings engaging the screw shaft with the inner perimeter, e.g. using inner rings of a ball bearing
- F16H25/229—Eccentric rings with their axis arranged substantially parallel to the screw shaft axis
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/381—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with at least one row for radial load in combination with at least one row for axial load
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/49—Bearings with both balls and rollers
-
- 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
- Y10T74/18—Mechanical movements
- Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
- Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut
- Y10T74/18712—Contamination related
-
- 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
- Y10T74/19805—Less than 360 degrees of contact between nut and screw
Definitions
- the invention relates to a screw mechanism for converting a rotary movement into a reciprocating (linear) movement, with a threaded spindle which is rotatably supported by at least one needle bearing in a rolling ring nut acting as a housing and in the screw thread of which on a
- the circumferential point engages a profiled roller ring for the axial displacement of the roller nut, which surrounds the threaded spindle and is arranged eccentrically with respect to the spindle axis and is surrounded by a radial roller bearing, via which the roller ring is rotatably mounted in the housing.
- Such a screw gear is known from EP-PS 0 122 596.
- This contains two roller rings with ball bearings arranged in a housing, the outer rings of which are arranged in special roller bearing receiving bodies which surround the threaded spindle.
- the needle bearings which serve for the radial support of the rolling ring nut, also have separate outer rings or thread rings. Overall, this results in a structurally complex design.
- the invention has for its object to provide a screw gear which is simplified in construction and easy to assemble.
- This object is achieved according to the invention in that the housing is composed of rotationally symmetrical sheet metal components which are produced without cutting by the deep-drawing process and which have the outer rolling element raceways for the bearings on their inner surfaces.
- the housing can thus be composed of hardened drawn parts, which also serve as bearing raceways. This results in a compact construction of the screw gear and this then consists of only a few individual parts.
- the housing can be designed as a cup-shaped piston at one end facing away from the rolling ring in the direction of the spindle axis. As a result, it is closed on one side and the threaded spindle is protected from damage and contamination. In addition, no lubricant is lost, but remains inside the ring nut.
- the housing contains an outer bearing ring for the needle bearing of the threaded spindle and an outer bearing ring attached to it for the radial roller bearing of the rolling ring.
- the bearing ring for the needle bearing and the bearing ring for the radial roller bearing can be designed as a one-piece sheet metal component, which results in a particularly simple design.
- the radial roller bearing for the rolling ring can be designed as a ball bearing which transmits both axial forces and radial forces.
- the advantage of higher axial stiffness and higher load ratings is achieved than when using a ball bearing, since needle bearings usually have higher load ratings and stiffness.
- the use of needle bearings results in a smaller installation space.
- the surfaces of the rolling ring directly form the raceways for its rolling bearing.
- the rolling ring can be held axially by an inwardly bent edge of the housing. It is possible to have two in the housing To arrange needle bearings for the threaded spindle, each of which adjoins the end faces of the rolling ring.
- the housing can contain an additional bearing ring for the second needle bearing of the threaded spindle, which is held axially by an adjacent flange on the bent edge of the housing.
- FIG. 1 shows a longitudinal section through a helical gear, the roller ring is mounted in the housing via two axial needle bearings and a radial needle bearing;
- FIG. 2 shows a longitudinal section through a screw gear with a ball bearing, the housing of which is composed of two components;
- FIG 3 shows a longitudinal section through a screw gear, the housing of which is made in one piece with two roller bearing rings.
- a helical gear according to the invention has a rolling ring nut 1 in FIG.
- the rolling ring nut 1 forms a housing 4 in which the threaded spindle 2 is rotatably mounted via two needle bearings 5 and 6.
- the housing 4 is composed of two deep-drawn sheet metal components.
- the larger part consists of a cup-shaped piston 7, which closes the receiving space for the threaded spindle 2 at one axial end, an outer bearing ring 8 for the needle bearing 5, an outer bearing ring 9 for a radial roller bearing designed as a needle bearing 10, via which a roller ring 11 arranged in the housing 4 is rotatably mounted.
- Another deep-drawn sheet metal component with a flange 13 and an additional bearing ring 14 adjoining the latter are axially connected here for the second needle bearing 6 of the threaded spindle 2.
- This housing 4 is held together in that the edge 12 axially holds the flange 13 located within the outer bearing ring 9.
- the rolling ring 1 1 is displaced with its rolling ring axis 15 parallel to the spindle axis 3. It is therefore arranged eccentrically with respect to the threaded spindle 2 and engages with profile grooves at a circumferential point in the external thread of the threaded spindle 2.
- the rolling ring 11 must also rotate, since it rolls on the threaded spindle 2.
- this helical gear has axial needle bearings 16 and 17, via which the rolling ring 11 is axially supported in the housing. These bearings are arranged directly on the two end faces of the rolling ring 1 1, so that the rolling ring 1 1 forms their raceways.
- a flange region 18 of the housing part containing the cup-shaped piston 7 serves as the outer bearing surfaces for the axial needle bearing 16, while the rolling elements of the axial needle bearing 17 use the flange 13 of the housing part containing the additional bearing ring 14 as the outer bearing running surface.
- only one needle bearing 5 is provided for the mounting of the threaded spindle 2.
- a pressure force in the direction of the spindle axis 3 can be exerted on the cup-shaped piston 7 via the roller ring 19 and its radial roller bearing designed as a ball bearing 20.
- the housing 21 of the rolling ring nut 22 in Figure 2 consists of two deep-drawn sheet metal components, namely the part with the pot-shaped Piston 7 and an outer bearing ring 23 of the needle bearing 5 of the threaded spindle 2 and the part for the bearing of the ball bearing 20 with the outer bearing ring 24 for the rolling ring 19. These two parts are mechanically assembled in the area of the needle bearing 5.
- the housing 25 of the rolling ring nut 26 with the outer bearing ring 23 of the needle bearing 5 and the outer bearing ring 24 of the radial roller bearing of the rolling ring 19 is designed as a one-piece component.
- this contains an inwardly bent edge 12, which axially holds the rolling ring 19, offset with its rolling ring axis 15 with respect to the spindle axis 3, in the housing.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9504114A JPH11508669A (ja) | 1995-06-28 | 1996-05-15 | 転がりリングナットを有するねじ伝動装置 |
DE19680488A DE19680488C1 (de) | 1995-06-28 | 1996-05-15 | Schraubgetriebe mit einer Wälzringmutter |
DE19680488D DE19680488D2 (de) | 1995-06-28 | 1996-05-15 | Schraubgetriebe mit einer Wälzringmutter |
US08/973,257 US5956997A (en) | 1995-06-28 | 1996-05-15 | Worm gear with a gear ring nut |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19523395A DE19523395A1 (de) | 1995-06-28 | 1995-06-28 | Schraubgetriebe mit einer Wälzringmutter |
DE19523395.6 | 1995-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997001719A1 true WO1997001719A1 (de) | 1997-01-16 |
Family
ID=7765396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/002085 WO1997001719A1 (de) | 1995-06-28 | 1996-05-15 | Schraubgetriebe mit einer wälzringmutter |
Country Status (4)
Country | Link |
---|---|
US (1) | US5956997A (de) |
JP (1) | JPH11508669A (de) |
DE (2) | DE19523395A1 (de) |
WO (1) | WO1997001719A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT405951B (de) * | 1998-02-06 | 2000-01-25 | Andritz Patentverwaltung | Verfahren und vorrichtung zur formierung von faserplatten |
JP2000257683A (ja) * | 1999-03-10 | 2000-09-19 | Nsk Ltd | 無段変速機用プーリ幅調整装置 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19757184A1 (de) * | 1997-12-22 | 1999-06-24 | Schaeffler Waelzlager Ohg | Schaltgabel für ein Gangschaltgetriebe eines Kraftfahrzeugs |
DE10148970B4 (de) * | 2000-10-26 | 2007-12-13 | Bühler Motor GmbH | Linearantrieb |
ITVI20030119A1 (it) * | 2003-06-23 | 2004-12-24 | Giancarlo Brun | Vite a rotolamento con avanzamento per giro inferiore |
US7637664B2 (en) * | 2004-03-30 | 2009-12-29 | Harmonic Drive Systems, Inc. | Composite roll bearing |
ITVI20050065A1 (it) * | 2005-03-09 | 2006-09-10 | Ares Line Srl | Vite a rotolamento |
EP1884684B1 (de) * | 2006-08-03 | 2013-06-12 | Schaeffler Technologies AG & Co. KG | Getriebe zur Umwandlung einer Rotationsbewegung in eine Linearbewegung |
JP4715820B2 (ja) * | 2007-08-14 | 2011-07-06 | 日本精工株式会社 | 主軸装置 |
DE102016213424A1 (de) * | 2016-07-22 | 2018-01-25 | Schaeffler Technologies AG & Co. KG | Aktives Radaufhängungselement |
DE102016213425A1 (de) * | 2016-07-22 | 2018-01-25 | Schaeffler Technologies AG & Co. KG | Spindeltrieb |
AR107962A1 (es) * | 2017-03-23 | 2018-07-04 | Vitro Sab De Cv | Distribuidor de gotas para una máquina formadora de artículos de vidrio |
DE102018115788A1 (de) | 2018-06-29 | 2020-01-02 | Schaeffler Technologies AG & Co. KG | Gewindetrieb und Linearaktuator mit diesem Gewindetrieb |
DE102019117197A1 (de) * | 2019-06-26 | 2020-12-31 | Zf Active Safety Gmbh | Betätigungseinrichtung |
DE102020113043B4 (de) | 2020-05-14 | 2023-03-30 | Schaeffler Technologies AG & Co. KG | Kugelgewindetrieb |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3730016A (en) * | 1971-06-14 | 1973-05-01 | Continental Can Co | Friction drive differential screw |
DE2901826A1 (de) * | 1979-01-18 | 1980-07-31 | Kugelfischer G Schaefer & Co | Rollenhuelse |
DE3032955A1 (de) * | 1979-09-13 | 1981-03-19 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | Waelzkoerperschraubgetriebe |
EP0122596A1 (de) * | 1983-04-11 | 1984-10-24 | Klaus Betzing | Wälzringspindeltrieb |
DE3808375C1 (de) * | 1988-03-12 | 1989-10-05 | Fag Kugelfischer Georg Schaefer Kgaa, 8720 Schweinfurt, De |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2482082A (en) * | 1944-06-07 | 1949-09-13 | Electrolux Corp | Screw jack |
US2556572A (en) * | 1944-08-23 | 1951-06-12 | William A Brinkhurst | Screw feed |
US2616302A (en) * | 1947-03-06 | 1952-11-04 | Sundstrand Machine Tool Co | Antifriction transmission |
US2876653A (en) * | 1958-04-01 | 1959-03-10 | Gen Motors Corp | Mechanical movement device |
US3277736A (en) * | 1964-07-27 | 1966-10-11 | Goodman Robert | Device for translating rotary motion into linear motion |
US3380316A (en) * | 1966-12-05 | 1968-04-30 | Auto Crane Company | Two-speed drive |
US3592070A (en) * | 1969-07-14 | 1971-07-13 | Ivan K Hammond | Linear actuator |
US3614900A (en) * | 1970-05-08 | 1971-10-26 | Wahlmark Systems | Anti-friction drive |
US3751998A (en) * | 1971-05-18 | 1973-08-14 | A Vasilatos | Linear actuator |
US3733914A (en) * | 1971-06-01 | 1973-05-22 | Res Engineering Co | Motion conversion means |
DE2839920C2 (de) * | 1978-09-14 | 1986-07-10 | Robert Dr.-Ing. 6308 Butzbach Gärtner | Schraubenantrieb |
DE3417056A1 (de) * | 1984-05-09 | 1985-11-14 | Robert Dr.-Ing. 6308 Butzbach Gärtner | Spindelantrieb |
JPH0351546Y2 (de) * | 1986-01-07 | 1991-11-06 |
-
1995
- 1995-06-28 DE DE19523395A patent/DE19523395A1/de not_active Withdrawn
-
1996
- 1996-05-15 DE DE19680488A patent/DE19680488C1/de not_active Expired - Fee Related
- 1996-05-15 JP JP9504114A patent/JPH11508669A/ja active Pending
- 1996-05-15 US US08/973,257 patent/US5956997A/en not_active Expired - Fee Related
- 1996-05-15 WO PCT/EP1996/002085 patent/WO1997001719A1/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3730016A (en) * | 1971-06-14 | 1973-05-01 | Continental Can Co | Friction drive differential screw |
DE2901826A1 (de) * | 1979-01-18 | 1980-07-31 | Kugelfischer G Schaefer & Co | Rollenhuelse |
DE3032955A1 (de) * | 1979-09-13 | 1981-03-19 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | Waelzkoerperschraubgetriebe |
EP0122596A1 (de) * | 1983-04-11 | 1984-10-24 | Klaus Betzing | Wälzringspindeltrieb |
DE3808375C1 (de) * | 1988-03-12 | 1989-10-05 | Fag Kugelfischer Georg Schaefer Kgaa, 8720 Schweinfurt, De |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT405951B (de) * | 1998-02-06 | 2000-01-25 | Andritz Patentverwaltung | Verfahren und vorrichtung zur formierung von faserplatten |
JP2000257683A (ja) * | 1999-03-10 | 2000-09-19 | Nsk Ltd | 無段変速機用プーリ幅調整装置 |
Also Published As
Publication number | Publication date |
---|---|
US5956997A (en) | 1999-09-28 |
JPH11508669A (ja) | 1999-07-27 |
DE19523395A1 (de) | 1997-01-02 |
DE19680488C1 (de) | 2000-01-13 |
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