WO2016131458A1 - Führungseinrichtung für ein umschlingungsmittel eines kegelscheibenumschlingungsgetriebes - Google Patents
Führungseinrichtung für ein umschlingungsmittel eines kegelscheibenumschlingungsgetriebes Download PDFInfo
- Publication number
- WO2016131458A1 WO2016131458A1 PCT/DE2016/200096 DE2016200096W WO2016131458A1 WO 2016131458 A1 WO2016131458 A1 WO 2016131458A1 DE 2016200096 W DE2016200096 W DE 2016200096W WO 2016131458 A1 WO2016131458 A1 WO 2016131458A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- belt
- damping
- coil
- magnet
- guide element
- 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.)
- Ceased
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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H7/0829—Means for varying tension of belts, ropes or chains with vibration damping means
- F16H7/0831—Means for varying tension of belts, ropes or chains with vibration damping means of the dry friction type
-
- 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
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/18—Means for guiding or supporting belts, ropes, or chains
-
- 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
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
- F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
- F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
- F16H9/16—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
- F16H9/18—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts only one flange of each pulley being 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
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
- F16H9/24—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using chains or toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing
Definitions
- the invention relates to a guide device for a belt wrap of a Keelsensenumschlingungsgetriebes.
- a conical pulley is known with drive-side and output side cone pulley pairs, each having a fixed disk and a spacer, which are each arranged on a drive-side and a driven side shaft and connectable via a belt connection for torque transmission, wherein at least one of The following factors are optimized with regard to the acoustics of the transmission: viscous or hydraulic medium in the form of oil, surface condition of the contact areas between conical disk and belt, geometry of at least one conical disk, damping of at least one conical disk and / or guiding at least one conical disk.
- viscous or hydraulic medium in the form of oil viscous or hydraulic medium in the form of oil
- surface condition of the contact areas between conical disk and belt geometry of at least one conical disk, damping of at least one conical disk and / or guiding at least one conical disk.
- the invention has for its object to provide a guide means for a belt means of a conical-pulley belt drive, which provides a good damping of vibrations of a belt wrap of a Keelsensenumschlingungsgetriebes available.
- the invention relates to a guide device for a looping means of a Keels gelefficiencynumschlingungsgetriebes comprising at least a first guide member for guiding the belt and a spaced from the first guide member second guide member for guiding the belt, wherein between the at least one first guide member and the at least one second guide member, the belt is feasible, wherein at least one damping module for damping chain vibrations of the belt is arranged on the first guide element and / or second guide element, wherein the damping module comprises a coil for the electromagnetic damping of the chain vibrations. With the aid of the damping module, damping of chain vibrations of the belt can be made possible during operation of the belt pulley belt drive.
- the damping can take place without contact, so that no additional structure-borne noise can be caused by contact of the guide device with a housing of the conical-pulley belt transmission.
- chain vibrations in particular chain core vibrations
- the transmitted chain vibrations can be damped by the damping module before the guide module can transmit the chain vibrations, for example, to the housing of the belt pulley belt transmission.
- the damping module due to electromagnetic interactions can dampen the transmitted chain vibrations.
- an electromagnetic damping can take place in such a way that a magnetic field is influenced by the chain vibrations in the damping module, whereby an electric current is induced.
- the chain vibrations in particular chain core vibrations, can be converted into a voltage and / or an electrical current, which are limited in a resistance of the damping module and / or forwarded to a load or to an energy store, for example a battery.
- a current-induced magnetic field may be used in the damping module to damp the belt during operation.
- a magnetic field can be built up by the damping module, which can act on the looping means guided between the first guide element and the second guide element and in this way can dampen the chain vibrations occurring during operation.
- the damping module may comprise a coil for the electromagnetic damping of the chain vibrations.
- the coil may include a first coil end and a second coil end oppositely disposed from the first coil end, wherein the first coil end and the second coil end may each be electrically connected to form a closed electrical circuit.
- the term coil describes an electronic component.
- the special feature of a coil is the inductance. Inductance is the ability of a coil in its own turns to generate a voltage through a magnetic field. It is said that the coil induces a voltage.
- the trigger is the magnetic field of the voltage.
- an air coil for example a wound wire
- an iron core coil for example with a sheet metal core, HF core or ferrite core.
- the coil may be arranged on the first guide element and / or second guide element substantially perpendicular to the belt.
- a substantially vertical arrangement of the coil to the belt in the coil can be made possible by the fact that the coil has, for example, a cylindrical shape and the first turn of the coil has with its diameter in the direction of the belt.
- a space requirement for the damping module can be reduced, so that, for example, a plurality of damping modules can be arranged side by side on the first guide element and / or second guide element. In this way, a good damping of vibrations of the belt can be achieved with the guide device according to the invention.
- a translation of the conical-pulley transmission can be infinitely adjustable.
- the conical-pulley transmission can be a continuously variable transmission, in English Continuously Variable Transmission, abbreviated CVT.
- the conical-pulley transmission may be a variator.
- the cone pulley belt transmission can be arranged in a drive train of a motor vehicle.
- the conical-pulley transmission can have a first conical disk pair and a second conical disk pair.
- the cone pulley pairs can have parallel axes of rotation.
- Each pair of conical disks can have an axial displaceable conical disk.
- the axially displaceable conical disks of the cone pulley pairs can be displaced in opposite directions.
- the first conical disk pair can be driven by means of a drive.
- the drive may be a motor vehicle drive, for example an internal combustion engine or an electric drive.
- the wrap-around means can serve to transmit a mechanical power between the first conical disk pair and the second conical disk pair.
- the conical-pulley transmission can have a housing.
- the conical disks can be stored in the housing.
- the wrapping means may be a traction means.
- the wrapping means may be a chain, in particular a link chain.
- the belt may comprise layers and pressure pads.
- the plungers can be used to couple the belt with the cone pulley pairs. A coupling between the pressure pieces and the cone pulley pairs can be done by friction.
- the tabs can be used to couple the plungers.
- the wrapping means may comprise a load strand and an empty strand. During operation, vibrations in the transverse direction can be excited in the load strand and / or in the slack side of the belt.
- a transverse direction may be a direction perpendicular to the running direction of the belt and to the axes of rotation of the conical pulley pairs.
- the belting means may assume a running position depending on a ratio of the bevel belt worm gear. The running position of the belt may change with a change in the ratio of the bevel belt transmission.
- the belt With the guide device, the belt can be guided on a load strand and / or slack side.
- the guide device may be a slide rail.
- the wrapping means can be guided fittingly on the guide device in the transverse direction.
- the belt can be guidable on the guide device at least approximately free of play.
- the wrapping means can slide during operation between the first guide element and the second guide element of the guide device.
- the guide device can be arranged on a holding device.
- the holding device may be fixedly arranged to the housing of the conical-pulley belt drive.
- the guide device can be displaceable relative to the holding device.
- the guide device can be pivotable and / or displaceable relative to the holding device.
- the holding device may be a holding tube.
- the guide device can be arranged with its second guide element on the holding device.
- the second guide element may have a base.
- the second guide element may have a receptacle for the holding device.
- a magnet is arranged in the coil for inducing a current in the coil.
- the magnet may be a permanent magnet or an electromagnet, which is arranged in the coil and is surrounded by the coil to induce a current in the coil. An induction of the current in the coil takes place in that the magnetic field encompassed by the coil is changed by the magnet.
- the magnet is mechanically excitable, in particular via the chain vibration of the belt.
- the magnet may be a permanent magnet excitable in the coil by the chain vibrations and movable in the coil from the first coil end to the second coil end to induce the coil at different locations.
- an AC circuit can be made possible in the coil, so that the current and the magnetic field in the coil periodically change direction to allow damping of chain vibration.
- the electrical resistance of the coil is much larger in the AC circuit than in the DC circuit. The reason for this is self-induction.
- the self-induction voltage developed in the AC circuit in the coil and the self-induction current connected to it are, according to Lenz's law, directed to counteract the original current and thus to weaken it.
- a coil acts like a resistor due to the self-induction.
- This resistance is called inductive resistance. Since the circuit is deprived of energy by this resistor, called an inductive resistor as a reactance.
- a coil also still has the ohmic resistance of the coil wire, which, however, is generally much smaller than the inductive resistance. This is especially true for coils with iron core.
- heat development can occur in a current-carrying ohmic resistance.
- the magnet with at least one elastic element, in particular a spring, preferably between two elastic elements, arranged for damping a mechanical excitation of the magnet.
- the magnet in the coil can be transferred from a position to a second position, for example the magnet in the coil can be moved in the direction of the belt and away from the belt.
- the elastic elements can thereby ensure that the vibrations of the movement of the magnet in the coil are damped.
- the elastic elements may transmit the chain vibrations to transfer the magnet in the coil from a first position to a second position.
- mechanical excitation by vibration is generally not frictionless. That is, the vibration loses energy through friction and therefore its amplitude decreases.
- a one-dimensional damped oscillator excitable by the chain vibrations can be formed.
- An oscillator is a vibratory system. This means that it allows a usually temporal oscillation of its state variables. Oscillation means that there is a constant change between two states, or around a central point, which usually corresponds to the rest position of the system.
- Mechanical vibration is generally not frictionless. That is, the vibration loses energy through friction and therefore its amplitude decreases. By exciting the chain vibration, the oscillator can counteract the loss of friction while releasing heat.
- At least one parameter of the damping module in particular a spring stiffness of the at least one elastic element, a mass of the magnet and / or a
- a mass of the magnet is increased by adding a material, preferably a ceramic material, in particular hard ferrite, or a metallic material, in particular iron, nickel and / or cobalt, in order to increase the mechanical excitation of the magnet and / or the induction through the magnet in the coil.
- a material preferably a ceramic material, in particular hard ferrite, or a metallic material, in particular iron, nickel and / or cobalt.
- geometries of the magnet, the at least one elastic element, and the coil may be adaptable for installation in a housing of the transmission.
- the stroke of the magnet, the stiffness of the elastic elements, the length and the diameter of the coil as well as all other geometries on the in the Housing existing space can be adjusted so that the damping module can be used in an existing conical-pulley transmission. In this way, the damping module can be easily retrofitted.
- a plurality of damping modules are arranged one behind the other on the first guide element and / or the second guide element in the direction of the wrapping means for damping the chain oscillations. In this way, the effectiveness of the electromagnetic damping can be increased.
- different damping modules can be used, which each comprise different elastic elements, coils and / or magnets to attenuate different frequencies of the chain vibrations.
- the invention further relates to a conical-pulley belt transmission comprising a first pair of conical disks, a second pair of conical disks and a belt for transmitting a mechanical power between the first pair of conical disks and the second pair of cones, wherein at least one guide device, which can be designed and developed as described above, on the Belting means is arranged for damping chain swing of the belt.
- a plurality of guide means are arranged on the belt means for damping the chain vibrations.
- the effectiveness of the electromagnetic damping can be increased.
- guide devices with different damping modules can be used, which in each case comprise different elastic elements, coils and / or magnets in order to damp different frequencies of the chain vibrations.
- FIG. 1 is a perspective view of a belt with an embodiment of a guide device
- FIG. 2 shows a detail of a sectional view of the guide device from FIG. 1 in which a magnet assumes a first position
- FIG. 3 shows a detail of a sectional view of the guide device from FIG. 1 in which the magnet assumes a second position.
- Fig. 1 shows a perspective view of a belt 10, for example, a link chain, not shown conical pulley belt drive, such as a continuously variable transmission, in English Continuously Variable Transmission, abbreviated CVT.
- a guide device 12 is arranged in the form of a slide rail.
- the guide device 12 comprises a first guide element 14 and a second guide element 16 spaced from the first guide element 14.
- the first guide element 12 and the second guide element 16 are connected to one another via a connecting section 22.
- the belt 10 is guided.
- a damping module 18 is arranged to reduce chain vibration of the belt 10 during operation.
- the second guide element 16 is arranged on a holding tube 20.
- the holding tube 20 is arranged on a housing, not shown, of the conical-pulley wrap.
- the second guide element 16 has a slot-like receptacle.
- oscillations can be excited in the wrapping means 10 in a transverse direction, shown as arrow a in FIG. 1.
- the slot-like receptacle of the second guide element extends in the direction of arrow a.
- the guide device 12 is one Longitudinal axis of the holding tube 20 rotatably and slidably disposed in the direction of arrow a.
- the belt 10 is arranged between two conical disks, not shown.
- the wrapping means 10 is driven in the direction of the arrow b.
- the guide device 12 is arranged on a load strand of the belt 10.
- FIG. 2 shows a side sectional view of the guide device 12. Between the first guide element 14 and the second guide element 16, a section of the belt 10 is shown.
- a coil 24 for reducing a chain vibration of the belt 10 is arranged in the damping module 18, a coil 24 for reducing a chain vibration of the belt 10 is arranged.
- the coil 24 is arranged substantially perpendicular to the wrapping means 10, and comprises a first coil end 26 pointing in the direction of the wrapping means 10 and a second coil end 28 arranged opposite the first coil end 26.
- the first coil end 26 and the second coil end 28 are each electrically connected to form a closed electrical circuit.
- the electrical circuit has an equivalent resistance and an equivalent inductance.
- a mechanically excitable magnet 30 is arranged in the coil 24. With the aid of the magnet 30, the current in the coil 24 is induced.
- the magnet 30 is arranged between a first elastic element 32, such as a helical spring, and a second elastic element 34, such as a helical spring.
- a first elastic element 32 such as a helical spring
- a second elastic element 34 such as a helical spring.
- the magnet 30 is shown in a first position. In this case, the first elastic element 32 is compressed by the magnet 30. Subsequently, the magnet 30 is transferred by means of the first elastic member 32 in a second position, wherein the second elastic member is compressed. This is shown in FIG.
- the transfer of the magnet 30 from the first to the second position and back takes place through the chain vibrations.
- a current is induced in the coil 24, resulting in damping for reducing the chain oscillation.
- the first elastic element 32 and the second elastic element 34 form together with the mass of the magnet 30 and the attenuation resulting from the induced current, a one-dimensional attenuated oscillator excited by the chain oscillations.
- the electromagnetic damping takes place in that a part of the chain vibrations, in particular the chain core vibrations, is converted into heat according to the law of Joule.
- the induced current resulting from the movement of the magnet 30 relative to the coil 24 is limited by a self-induced resistance of the coil 24. In this way, the chain vibrations can be damped, and are not transmitted through the holding tube 22 to the housing of the belt pulley belt drive.
- the stroke of the magnet 30, the rigidity of the first elastic element 32 and the second elastic element 34, the length and the diameter of the coil 24 as well as all other geometries of the guide device 12 can be adapted to the space available in the housing.
- parameters of an oscillator formed from the first elastic element 32, the second elastic element 34, the mass of the magnet 30 and the attenuation resulting from the induced current can be set optimally.
- the stiffness of the first elastic member 32 and the second elastic member 34, the mass of the magnet 30, the equivalent resistance and the equivalent inductance of the coil 24 may be designed to attenuate certain frequencies of the chain pitch vibrations, for example resonances.
- the mass of the magnet 30 is increased, for example, by a ceramic material, such as hard ferrite.
- a plurality of damping modules 18 can also be arranged in a guide device 12 in order, for example, to damp different frequencies of the chain oscillation. LIST OF REFERENCE NUMBERS
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201680010199.3A CN107208754A (zh) | 2015-02-16 | 2016-02-16 | 用于锥盘缠绕传动装置的缠绕传动件的引导装置 |
| DE112016000759.0T DE112016000759A5 (de) | 2015-02-16 | 2016-02-16 | Führungseinrichtung für ein umschlingungsmittel eines kegelscheibenumschlingungsgetriebes |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015202761.9 | 2015-02-16 | ||
| DE102015202761.9A DE102015202761B4 (de) | 2015-02-16 | 2015-02-16 | Führungseinrichtung für ein Umschlingungsmittel eines Kegelscheibenumschlingungsgetriebes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016131458A1 true WO2016131458A1 (de) | 2016-08-25 |
Family
ID=55484789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2016/200096 Ceased WO2016131458A1 (de) | 2015-02-16 | 2016-02-16 | Führungseinrichtung für ein umschlingungsmittel eines kegelscheibenumschlingungsgetriebes |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN107208754A (de) |
| DE (2) | DE102015202761B4 (de) |
| WO (1) | WO2016131458A1 (de) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005037922A1 (de) | 2004-08-24 | 2006-03-02 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Kegelscheibenumschlingungsgetriebe, Verfahren zu dessen Herstellung sowie Fahrzeug mit einem derartigen Getriebe |
| DE102005059732A1 (de) * | 2005-12-14 | 2007-06-21 | GM Global Technology Operations, Inc., Detroit | Riemenspanner mit variabler Dämpfung |
| WO2008071144A1 (de) * | 2006-12-15 | 2008-06-19 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Zugmittelgetriebe |
| DE102012219366A1 (de) * | 2011-11-08 | 2013-05-08 | Schaeffler Technologies AG & Co. KG | Anordnung für ein Zugmittel eines Zugmittelantriebs |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207164A (zh) * | 2011-05-27 | 2011-10-05 | 山东理工大学 | 电磁阻尼减振器 |
| DE102012217206A1 (de) * | 2012-09-24 | 2014-03-27 | Schaeffler Technologies Gmbh & Co. Kg | Spannvorrichtung für einen Zugmitteltrieb |
| CN203463550U (zh) * | 2013-07-26 | 2014-03-05 | 中国船舶重工集团公司第七一九研究所 | 一种双频小质量低功耗共振式主动吸振器 |
-
2015
- 2015-02-16 DE DE102015202761.9A patent/DE102015202761B4/de not_active Expired - Fee Related
-
2016
- 2016-02-16 WO PCT/DE2016/200096 patent/WO2016131458A1/de not_active Ceased
- 2016-02-16 DE DE112016000759.0T patent/DE112016000759A5/de not_active Withdrawn
- 2016-02-16 CN CN201680010199.3A patent/CN107208754A/zh active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005037922A1 (de) | 2004-08-24 | 2006-03-02 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Kegelscheibenumschlingungsgetriebe, Verfahren zu dessen Herstellung sowie Fahrzeug mit einem derartigen Getriebe |
| DE102005059732A1 (de) * | 2005-12-14 | 2007-06-21 | GM Global Technology Operations, Inc., Detroit | Riemenspanner mit variabler Dämpfung |
| WO2008071144A1 (de) * | 2006-12-15 | 2008-06-19 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Zugmittelgetriebe |
| DE102012219366A1 (de) * | 2011-11-08 | 2013-05-08 | Schaeffler Technologies AG & Co. KG | Anordnung für ein Zugmittel eines Zugmittelantriebs |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015202761A1 (de) | 2016-08-18 |
| DE112016000759A5 (de) | 2018-03-29 |
| CN107208754A (zh) | 2017-09-26 |
| DE102015202761B4 (de) | 2017-02-16 |
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