WO2015021978A1 - Wrap-around converter - Google Patents
Wrap-around converter Download PDFInfo
- Publication number
- WO2015021978A1 WO2015021978A1 PCT/DE2014/200374 DE2014200374W WO2015021978A1 WO 2015021978 A1 WO2015021978 A1 WO 2015021978A1 DE 2014200374 W DE2014200374 W DE 2014200374W WO 2015021978 A1 WO2015021978 A1 WO 2015021978A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conical
- wrap
- pairs
- running surfaces
- radial direction
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/52—Pulleys or friction discs of adjustable construction
- F16H55/56—Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
- F16H61/662—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members
- F16H2061/66295—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members characterised by means for controlling the geometrical interrelationship of pulleys and the endless flexible member, e.g. belt alignment or position of the resulting axial pulley force in the plane perpendicular to the pulley axis
Definitions
- the invention relates to a belt wrap, in particular for a conical pulley wrap.
- Wrap-around transducers in particular of conical-disk drive transmissions of motor vehicles, have two conical-disk pairs with essentially conical running surfaces and an interlacing means arranged therebetween.
- a fixed disk and an axially adjustable travel disc are provided with each conical disk pair, so that the effective Umschlingungsradius for the belt can be adjusted by the axial adjustment of the windscreens of two conical disk pairs.
- the belt means runs with its contact surfaces on the running surfaces of the conical disks.
- Umschlingungswandler be known with conical treads, which are straight-flanked and have a fixed angle of the tread to the axis of rotation as a function of the radius.
- Such Umschlingungswandler have become known for push belt as wrapper.
- An embodiment of the invention relates to a belt wrap, in particular for a belt pulley, in particular for a motor vehicle, with two conical disk pairs with substantially conical treads and arranged therebetween Umschlingungsmittel, wherein the cone pulley pairs each have a fixed disc and an axially adjustable travel disc, so that the effective Umschlingungsradius for the belt means is adjustable by an axial adjustment of the travel discs of the cone pulley pairs, wherein the belt means rotates with its contact surfaces on the running surfaces of the conical disks, wherein the running surfaces of the cone pulley pairs are curved in opposite directions, so that adjusts the same directional emigration of the contact point in translation adjustment.
- An embodiment of the invention relates to a belt wrap, in particular for a belt pulley, in particular for a motor vehicle, with two conical disk pairs with substantially conical treads and arranged therebetween Umschlingungsmittel, wherein the cone pulley pairs each have a fixed disc and an axially adjustable travel disc, so that the effective Umschlingungsradius for the belt means is adjustable by an axial adjustment of the travel discs of the conical disk pairs, wherein the belt means rotates with its contact surfaces on the running surfaces of the conical disks, wherein at least the running surfaces of the driven side cone pulley pair are formed such that they in the starting ratio (UD) a smaller angle to the radial direction than in the high speed ratio (OD).
- UD starting ratio
- OD high speed ratio
- the running surfaces of the cone pulley pairs are designed in such a way that, in the starting ratio (UD), they are at an angle of 9 ° to 11 ° to the radial direction. have dialing direction.
- UD starting ratio
- the running surfaces of the cone pulley pairs are designed such that they have an angle of 10 ° to 12 ° to the radial direction in the high-speed transmission ratio (OD). As a result, good efficiencies are achieved with low contact pressure requirement in the high-speed transmission ratio.
- the running surface of the output-side cone pulley pair is curved concavely. It is also expedient if the running surface of the drive-side cone pulley pair is convex.
- the wedge gap between the concave running surfaces of a pair of conical disks increases from a small radius to a large radius and an average angle to the radial direction is greater than 5 ° and smaller than 15 °.
- the wedge gap between the convexly curved running surfaces of a pair of conical disks decreases from a small radius to a large radius and an average angle to the radial direction is greater than 5 ° and smaller than 15 °.
- FIG. 1 shows a schematic illustration of a running surface of a straight-flank conical disk
- FIG. 2 shows a schematic representation of a running surface of a convex conical disk
- FIG. 3 shows a schematic representation of a running surface of a concave conical disk
- FIG. 4 shows a schematic view of a looping converter with conical disk pairs with a smaller angle in the starting ratio to the radial direction and with a larger angle to the radial direction in the high speed transmission ratio
- FIG. 5 shows a schematic view of a loop converter with conical disk pairs with a concave and with a convex running surface
- Figure 6 is a diagram for explaining the invention.
- FIG. 1 schematically shows a contour of a running surface 2 of a conical disk 1, in which the running surface 2 has a straight edge. This means that at a small radius, ie radially inward, the angle a, between the tread 2 and the radial direction R is equal to the angle a a at a large radius, ie radially outward.
- the belt 3 touches the tread 2 at different radii always in the same point of contact.
- FIG. 2 schematically shows a contour of a running surface 5 of a conical disk 4, in which the running surface 5 is convex.
- the angle ai between the tread 5 and the radial direction R is smaller than the angle aa at a large radius, ie radially outward.
- the belt 6 touches the tread 5 at different radii in different points of contact.
- the wrapping means touches the tread 5 at a small radius radially outward than at a large radius.
- FIG 3 shows schematically a contour of a running surface 8 of a conical disk 7, in which the running surface 8 is concave.
- the angle ai between the tread 8 and the radial direction R is greater than the angle aa at a large radius, ie radially outward.
- the belt 9 touches the tread 8 at different radii in different points of contact. That's how it touches Belting means 9, the tread 8 at a small radius radially further inside than at a large radius.
- FIG. 4 schematically shows a looping converter 10 with a drive-side pulley set 1 1 and a driven pulley set 12, the setting of the looping means 13 both in the starting ratio (UD) and in the high-speed ratio (OD) both on the drive side and on the output side Disc set 1 1, 12 is shown.
- the starting ratio is the belt 13 on the drive-side pulley set 1 1 at a small radius and the output-side disc set 12 at a large radius. Both on the drive-side and on the driven-side slide set a small angle to the radial direction is formed between the tread and the belt.
- the belt 13 is on the drive-side pulley set 1 1 at a large radius and the driven pulley set 12 at a small radius. Both on the drive-side and on the driven-side slide set 1 1, 12 is formed between the tread and the belt 13 a larger angle to the radial direction than in the Anfahrübersky.
- the drive-side pulley set 1 1 is radially inwardly and radially outwardly formed with a convex tread and the output-side pulley set 12 is radially outwardly and radially inwardly formed with a concave tread. Between the radially inner region and the radially outer region, the respective contour can be continued, so that the drive-side pulley set 1 1 has a convex running surface and the driven-side pulley set 12 has a concave running surface, as shown in FIG.
- the contour between the respective radially inner region and the radially outer region may be freely selectable and otherwise contoured.
- FIG. 6 shows a diagram 20 in which the normalized chain hoist in the wrap-around converter is a function of the running circle radius.
- the course for the straight-sided running surface is normalized as a curve 21, so that the curve 21 can be recognized as a horizontal line.
- the curve 22 shows the chain hoist for the concave tread and curve 23 for the convexly curved tread.
- the curves 22 and 23 are linear, with they deviate arc-like from the linear course to large running radii.
- the curve 22 decreases with increasing radius of the track, with too large running radii towards the waste is weaker.
- the curve 23 increases with increasing radius of the track, with too large running radiuses, the increase becomes weaker.
- the contour of the contact surfaces of the belt is preferably convex.
- the disk sets shown preferably have a fixed disk and an axially adjustable disk so that the wedge gap for the wrapping means can be adjusted by adjusting the disk so that the ratio is variable.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112014003775.3T DE112014003775A5 (en) | 2013-08-16 | 2014-08-04 | contact converter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013216262.6 | 2013-08-16 | ||
DE102013216262.6A DE102013216262A1 (en) | 2013-08-16 | 2013-08-16 | contact converter |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015021978A1 true WO2015021978A1 (en) | 2015-02-19 |
Family
ID=51421785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2014/200374 WO2015021978A1 (en) | 2013-08-16 | 2014-08-04 | Wrap-around converter |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102013216262A1 (en) |
WO (1) | WO2015021978A1 (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4589859A (en) * | 1984-02-18 | 1986-05-20 | Usui Kokusai Sangyo Kabushiki Kaisha | Continuously variable transmission |
DE3445867A1 (en) * | 1984-12-15 | 1986-06-26 | Ford-Werke AG, 5000 Köln | Link chain for continuously variable cone pulley transmission |
US5685793A (en) * | 1996-08-16 | 1997-11-11 | Van Blaricom; Terry Michael | Multiple band continuously variable transmission |
DE19934047A1 (en) * | 1998-07-16 | 2000-01-27 | Lee Jong Wan | Power transmission mechanism using metal belts |
DE10235342A1 (en) * | 2002-08-02 | 2004-02-19 | Audi Ag | Wrap contact converter for infinitely variable transmission of vehicle has run-up surfaces of at least one disk pair concave in cross section |
WO2004111500A1 (en) * | 2003-06-16 | 2004-12-23 | Robert Bosch Gmbh | Continuously variable transmission |
WO2006068468A1 (en) * | 2004-12-24 | 2006-06-29 | Robert Bosch Gmbh | Transmission with convex pulley sheaves and a drive belt |
US20070117663A1 (en) * | 2003-12-01 | 2007-05-24 | Van Der Leest Adrianus Johanne | Continuously variable transmission |
WO2009134122A2 (en) * | 2008-05-02 | 2009-11-05 | Robert Bosch Gmbh | Transmission with convex pulley sheaves and a drive belt |
JP2010121732A (en) * | 2008-11-20 | 2010-06-03 | Nissan Motor Co Ltd | Belt-type continuously variable transmission |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3447092A1 (en) * | 1984-12-22 | 1986-07-03 | P.I.V. Antrieb Werner Reimers GmbH & Co KG, 6380 Bad Homburg | CONTINUOUSLY ADJUSTABLE CONE DISC BELT GEARBOX |
EP1158210A1 (en) * | 2000-05-26 | 2001-11-28 | Van Doorne's Transmissie B.V. | Continuously variable transmission, endless flexible belt for torque transmission and adjustable pulley |
GB2366339A (en) * | 2000-09-01 | 2002-03-06 | John David Ivor Locke | Variable diameter pulley |
JP2009204013A (en) * | 2008-02-26 | 2009-09-10 | Nissan Motor Co Ltd | Pulley for continuously variable transmission |
-
2013
- 2013-08-16 DE DE102013216262.6A patent/DE102013216262A1/en not_active Withdrawn
-
2014
- 2014-08-04 DE DE112014003775.3T patent/DE112014003775A5/en not_active Withdrawn
- 2014-08-04 WO PCT/DE2014/200374 patent/WO2015021978A1/en active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4589859A (en) * | 1984-02-18 | 1986-05-20 | Usui Kokusai Sangyo Kabushiki Kaisha | Continuously variable transmission |
DE3445867A1 (en) * | 1984-12-15 | 1986-06-26 | Ford-Werke AG, 5000 Köln | Link chain for continuously variable cone pulley transmission |
US5685793A (en) * | 1996-08-16 | 1997-11-11 | Van Blaricom; Terry Michael | Multiple band continuously variable transmission |
DE19934047A1 (en) * | 1998-07-16 | 2000-01-27 | Lee Jong Wan | Power transmission mechanism using metal belts |
DE10235342A1 (en) * | 2002-08-02 | 2004-02-19 | Audi Ag | Wrap contact converter for infinitely variable transmission of vehicle has run-up surfaces of at least one disk pair concave in cross section |
WO2004111500A1 (en) * | 2003-06-16 | 2004-12-23 | Robert Bosch Gmbh | Continuously variable transmission |
US20070117663A1 (en) * | 2003-12-01 | 2007-05-24 | Van Der Leest Adrianus Johanne | Continuously variable transmission |
WO2006068468A1 (en) * | 2004-12-24 | 2006-06-29 | Robert Bosch Gmbh | Transmission with convex pulley sheaves and a drive belt |
WO2009134122A2 (en) * | 2008-05-02 | 2009-11-05 | Robert Bosch Gmbh | Transmission with convex pulley sheaves and a drive belt |
JP2010121732A (en) * | 2008-11-20 | 2010-06-03 | Nissan Motor Co Ltd | Belt-type continuously variable transmission |
Also Published As
Publication number | Publication date |
---|---|
DE102013216262A1 (en) | 2015-02-19 |
DE112014003775A5 (en) | 2016-04-28 |
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