WO2012155879A2 - Drehmomentübertragungseinrichtung - Google Patents
Drehmomentübertragungseinrichtung Download PDFInfo
- Publication number
- WO2012155879A2 WO2012155879A2 PCT/DE2012/000451 DE2012000451W WO2012155879A2 WO 2012155879 A2 WO2012155879 A2 WO 2012155879A2 DE 2012000451 W DE2012000451 W DE 2012000451W WO 2012155879 A2 WO2012155879 A2 WO 2012155879A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wire
- spring
- transmission device
- torque transmission
- radius
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/12—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/042—Wound springs characterised by the cross-section of the wire
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
Definitions
- the invention relates to a torque transmission device having the features according to the preamble of claim 1.
- WO 2007/006255 a designed as a dual mass flywheel torque transmitting device in a drive train with a rotatable about an axis input member which is connectable to a drive side and a relative to the input member against the action of at least one helical spring limited rotatable output member which is connectable to an output side shown.
- the coil spring has a wire wound around a spring axis with a circular shape, that is with a circular wire cross section.
- the object of the invention is to reduce the contact pressure between spring receiving member and coil spring. Furthermore, it is an object to further reduce the wear between spring receiving member and coil spring.
- a torque transmitting device in a drive train with a rotatable about an axis input member which is connectable to a drive side and a relative to the input member against the action of at least one helical spring limited rotatable output member which is connectable to an output side and the coil spring radially outwardly bounding spring receiving member proposed wherein the coil spring has a wound around a spring axis wire, wherein the wire in a radially outer with respect to the axis of rotation region along the spring axis is partially formed and the wire cross-section of the wire is substantially circular and the circumference of which is described by a first wire radius and wherein the embossing in the circumferential direction of the wire cross-section in sections round and by a second wire radius is writable, wherein the first wire radius and the
- the first wire radius is smaller than the second wire radius.
- the second wire radius is greater than or equal to three times the first wire radius.
- the coil spring is designed as a bow spring or as a compression spring.
- the spring receiving member in a coil spring radially facing portion on a curvature, which is aligned with the second wire radius.
- a support surface is formed between spring receiving member and embossing of the wire, wherein the amount of support surface remains constant in a first rotational direction with a limited rotation of the wire relative to the spring receiving member in an axis parallel to the spring axis.
- the amount of support surface remains constant with a limited rotation of the wire by a second direction opposite to the first direction of rotation.
- the wire on the side with respect to the spring axis at least one Anformung, in particular a flat Anformung.
- the wire is made of spring steel.
- the torque transmission device is designed as a dual-mass flywheel or as a torsional vibration damper.
- the torque transmission device can be designed as a torsional vibration damper and / or as a dual mass flywheel and / or arranged on and / or in a hydrodynamic torque converter, on and / or in a clutch device, for example a wet-running clutch, on and / or in a dual clutch device.
- Figure 1 View of a wire cross section of a wire of a coil spring according to a prior art embodiment.
- Figure 2 View of a wire cross section of a wire of a coil spring in a specific embodiment of the invention.
- Figure 3 Characteristic of the contact pressure between a coil spring in a special embodiment of the invention and a spring receiving member as a function of the ratio of the second and first wire radius.
- a wire 10 of a coil spring 12 is shown in cross section.
- the wire 10 is spirally wound to form the coil spring 12 about a spring axis 100.
- the coil spring 12 is bounded by a spring receiving member 14 with respect to a radial direction 102 outside, wherein the spring receiving member 14 in the region of the support surface 16 between coil spring 12 and spring receiving member 14 is flat.
- the wire 10 of the coil spring 12 is circular in cross-section with a circumference describing wire radius 18 is formed.
- the wire 10 is formed in such a way that the wire cross-section has planar regions 24, 26. These laterally formed, planar regions 24, 26 taper in the direction of the spring axis 102 by an angle 28, in particular by an angle of approximately 10 degrees.
- the load on the coil spring 12 can be reduced as soon as the turns of the coil spring go to block, that is, when two in the direction of the spring axis 100 adjacent wires come into contact with each other.
- the transition from circular section 30 of the wire circumference to planar, integrally formed region 24, 26 is thereby formed by a rounding 32 with a transition radius which is smaller than the wire radius.
- Figure 2 shows a view of a wire cross section of a wire 10 of a coil spring 12 in a particular embodiment of the invention.
- the helical spring 12 has a wire 10 wound around a spring axis 100, wherein the wire 10 is formed along the spring axis 100 in a region 34 lying outside with respect to a radial direction 102.
- the Anformung 36 can be mounted in the direction of the spring axis 100 sections, but also over the entire length in the direction of the spring axis 100 on the coil spring 12.
- the wire cross section of the wire 10 is essentially circular and the circumference of the wire cross section is described by a first wire radius 38.
- the Anformung 36 is in the circumferential direction of the wire cross-section partially round and described by a second wire radius 40, wherein the first wire radius 38 and the second wire radius 40 are different.
- the first wire radius 38 is smaller than the second wire radius 40, preferably the second wire radius 40 is greater than or equal to three times the first wire radius 38.
- the contact pressure of the helical spring 12 on which the coil spring 12 radially outwardly delimiting the spring receiving component 14 can be reduced.
- the contact surface 16 formed between the wire 10 of the coil spring 12 and the spring receiving member 14 in the radially outer portion of the coil spring 12 is enlarged relative to a wire having a completely circular cross section.
- the wear of the wire 10 of the coil spring 12 can be reduced.
- an Anformung 36 described in the radially outer region of the coil spring 12 with a second wire radius 40 against a flat Anformung in this area is in the even with rotation of the wire 10 about a perpendicular to the wire cross-sectional area facing axis 104 larger and limited rotation of the Because the wire 10 rotates about this axis 104, for example, when the coil spring 12 is compressed or relaxed, so the contact surface 16 is limited rotation by the circumference of the wire cross-section in the Anformung 36, the is described by the second wire radius 40 and the contour of the spring receiving member 14 is set in the adjacent area, wherein the amount of the contact surface 16 at the limited rotation ideally remains constant. Furthermore, the wire 10 laterally with respect to the spring axis 102 on both sides of a planar Anformung 42, which tapers in the direction of the spring axis 100 by an angle 28.
- FIG. 3 shows a characteristic curve 44 of the contact pressure characterizing the contact pressure between a helical spring in a special embodiment of the invention and a spring receiving component as a function of the ratio of the second and first wire radius. Visible is the decrease of the contact pressure with increasing ratio of second to first wire radius.
- the ideal state in a twisting position of the wire about an axis perpendicular to the wire cross-sectional area would thus be a flat, planar Anformung, provided that the spring receiving member is also flat in the Anformung- of the wire. However, this does not take into account that the contact surface would be greatly reduced as soon as the wire is transferred to a second twisting position.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Springs (AREA)
- Mechanical Operated Clutches (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280023820.1A CN103562590B (zh) | 2011-05-13 | 2012-05-03 | 扭矩传递装置 |
DE112012002076.6T DE112012002076A5 (de) | 2011-05-13 | 2012-05-03 | Drehmomentübertragungseinrichtung |
US14/071,872 US20140057729A1 (en) | 2011-05-13 | 2013-11-05 | Torque transfer device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011101596 | 2011-05-13 | ||
DE102011101596.9 | 2011-05-13 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/071,872 Continuation US20140057729A1 (en) | 2011-05-13 | 2013-11-05 | Torque transfer device |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012155879A2 true WO2012155879A2 (de) | 2012-11-22 |
WO2012155879A3 WO2012155879A3 (de) | 2013-01-10 |
Family
ID=46583811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2012/000451 WO2012155879A2 (de) | 2011-05-13 | 2012-05-03 | Drehmomentübertragungseinrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140057729A1 (de) |
CN (1) | CN103562590B (de) |
DE (2) | DE112012002076A5 (de) |
WO (1) | WO2012155879A2 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112015002114T5 (de) * | 2014-07-07 | 2017-03-02 | Aisin Aw Co., Ltd. | Schraubenfeder |
EP3280930B1 (de) * | 2015-04-09 | 2021-03-03 | Schaeffler Technologies AG & Co. KG | Fliehkraftpendel |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007006255A2 (de) | 2005-07-14 | 2007-01-18 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Schwingungsdämpfungseinrichtung, insbesondere zweimassenschwungrad |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59190528A (ja) * | 1983-04-12 | 1984-10-29 | Mitsubishi Motors Corp | 異形断面つる巻きバネ |
GB8721155D0 (en) * | 1987-09-09 | 1987-10-14 | Automotive Prod Plc | Springs for torsional dampers |
FR2678035B1 (fr) * | 1991-06-20 | 1995-04-14 | Valeo | Ressort a boudin, notamment pour amortisseur de torsion. |
US6776401B2 (en) * | 2000-04-01 | 2004-08-17 | Robert Bosch Gmbh | Helical compression spring for use in a component of a fuel injection system |
DE10221313B4 (de) * | 2002-05-14 | 2013-12-05 | Federntechnik Knörzer GmbH | Zugfeder |
CN101223381B (zh) * | 2005-07-14 | 2012-04-18 | 卢克摩擦片和离合器两合公司 | 减振装置 |
JP5268261B2 (ja) * | 2007-01-26 | 2013-08-21 | 日本発條株式会社 | コイルばね |
CN102016344B (zh) * | 2008-05-07 | 2012-09-05 | 株式会社东乡制作所 | 异形截面螺旋弹簧 |
-
2012
- 2012-05-03 WO PCT/DE2012/000451 patent/WO2012155879A2/de active Application Filing
- 2012-05-03 DE DE112012002076.6T patent/DE112012002076A5/de not_active Ceased
- 2012-05-03 CN CN201280023820.1A patent/CN103562590B/zh not_active Expired - Fee Related
- 2012-05-03 DE DE102012207381A patent/DE102012207381A1/de not_active Withdrawn
-
2013
- 2013-11-05 US US14/071,872 patent/US20140057729A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007006255A2 (de) | 2005-07-14 | 2007-01-18 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Schwingungsdämpfungseinrichtung, insbesondere zweimassenschwungrad |
Also Published As
Publication number | Publication date |
---|---|
US20140057729A1 (en) | 2014-02-27 |
WO2012155879A3 (de) | 2013-01-10 |
DE112012002076A5 (de) | 2014-02-13 |
DE102012207381A1 (de) | 2012-11-15 |
CN103562590A (zh) | 2014-02-05 |
CN103562590B (zh) | 2016-01-06 |
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