EP2222982A1 - Werkstoffmischung aus polyamid-polyethylen für spannsysteme - Google Patents
Werkstoffmischung aus polyamid-polyethylen für spannsystemeInfo
- Publication number
- EP2222982A1 EP2222982A1 EP08852413A EP08852413A EP2222982A1 EP 2222982 A1 EP2222982 A1 EP 2222982A1 EP 08852413 A EP08852413 A EP 08852413A EP 08852413 A EP08852413 A EP 08852413A EP 2222982 A1 EP2222982 A1 EP 2222982A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polyamide
- traction
- material mixture
- polyethylene material
- polyethylene
- 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.)
- Withdrawn
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
- F16H7/10—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1254—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
- F16H7/1281—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially circular path
-
- 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
- F16H7/10—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley
- F16H7/1209—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley with vibration damping means
- F16H7/1218—Means for varying tension of belts, ropes or chains by adjusting the axis of a pulley of an idle pulley 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
- F16H7/08—Means for varying tension of belts, ropes or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/081—Torsion springs
Definitions
- the invention is directed to a traction mechanism drive, in particular designed as a belt drive, which is intended for an internal combustion engine and has a driven wheel and at least one drive wheel.
- the traction mechanism further includes a tensioning system and at least one deflection or guide element, wherein the output gear and the drive wheel and all connected to the clamping system or the deflection or guide element pulleys are connected via a traction means, preferably a belt.
- Traction drives of the aforementioned embodiment are used in internal combustion engines to drive auxiliary equipment, such as generator, water pump, air compressor or servo pump.
- Another traction mechanism drive of the internal combustion engine also referred to as a control drive, is provided for driving the camshaft via which gas exchange valves of the internal combustion engine are actuated.
- Both traction mechanisms include traction means, in particular belts, which are guided over all pulleys or sprockets associated with the traction mechanism drive.
- the traction mechanism drives of the internal combustion engine are further associated with tensioning devices and deflection or guide elements, which are designed in particular as deflection rollers or guide rails, which ensure a pretensioning of the traction means and thus a largely slip-free drive.
- the traction mechanism drives include damping measures in order to dampen the uneven drive caused by the rotational irregularity of the internal combustion engine. fen.
- the Buchstofftlander hydraulically or mechanically acting clamping systems are associated with integrated damping device on the example, an adjusting movement of the associated with the tensioning system roller is effectively damped, which is advantageous in terms of noise and wear of the traction drive.
- a traction mechanism layout is known in which the traction means, a belt, the crankshaft pulleys, a water pump and other ancillary components including a deflection roller encloses.
- the document also shows the construction of a clamping system for the traction drive with integrated damping device.
- This device is provided with a cylindrical frictional element which dampens spring-loaded actuating movements of the swivel arm, which is the end via a roller with the traction means in combination.
- the swivel arm is rotatably limited by a plastic bearing slide bearing relative to the stationary component.
- PTFE is added to the plastics used for dry sliding bearings and friction linings.
- This lubricant is in the form of smallest lamellae, platelets or particles in the base material, in particular polyamide.
- a spray skin is produced during the plastic splicing process. This spray skin forms a closed surface of the finished part, enclosing the solid lubricant, PTFE, under the skin.
- PTFE dry lubricant
- the invention has for its object to represent for a traction drive basic materials whose stored dry lubricants are effective from the beginning in the operating state.
- the invention provides that at least individual rotatable, pivotable or displaceable components of the clamping system made of polyamide Polyethylenmatehalien or a polyamide-polyethylene material mixture.
- This provided for a sliding, friction, deflection or guide element material or material mixture in which the solid lubricant is chemically bonded, causing the dry lubricant in the finished component also attaches to the surface of the component.
- a disadvantageous inlet effect is reduced or eliminated, as a result of which a noise-optimized clamping system is set in the operating state from the beginning.
- the material mixture according to the invention does not adversely affect the damping or vibration behavior of the clamping system.
- the invention further includes, also other components of the traction mechanism, for example, a tension roller or pulley and guide or deflecting rails made of a polyamide-polyethylene material mixture.
- a tension roller or pulley and guide or deflecting rails made of a polyamide-polyethylene material mixture.
- polyamide-polyethylene materials are described in DE 10 2005 946 571 A1.
- the document is limited to the chemical composition of this material mixture as well as to a method for producing these materials.
- the present invention relates to the use of polyamide-polyethylene materials for components of traction drives.
- polyamide-polyethylene component for the materials according to the invention is preferably PA-66, PA-46, PA-6T, PA-6 / 6T and / or PPA, which is added in pure form or as a mixture. + Text from 044 (Leibniz)
- a preferred material mixture provides a ratio of polyamide to polyethylene of> 80:20.
- a preferred material mixture for components of traction drives contains additives and / or reinforcing products such as reinforcing fibers or aramid fibers.
- the polyamide-polyethylene mixture according to the invention includes a proportion of 5-30% PTFE.
- the material according to the invention enables a complete substitution of previous materials such as PA46 PTFE.
- a material change therefore requires no structural or geometric adaptation in a clamping system or other components of the traction drive.
- the invention further relates to components of the clamping system with a sanding transferable transferable.
- the polyamide-polyethylene material mixture according to the invention is combined with a base material or carrier material.
- a permanent bond of these different materials is preferably a cohesive connection, such as gluing or ultrasonic welding.
- a disk-like designed damping and / or friction element made of a polyamide-polyethylene material.
- a disk-like designed damping and / or friction element made of a polyamide-polyethylene material.
- the sliding bearing of the pivot lever is made of the material mixture according to the invention via which the pivot lever relative to the stationary base part is rotatable.
- the material mixture according to the invention offers the possibility also of producing a disc shape deviating designed damping and / or friction elements, such as a conically shaped socket or a wedge ring, which is intended for cone clamping systems.
- the use of polyamide-polyethylene is further without exception suitable for the production of different components of the traction mechanism, which exert a relative movement with sliding partners and / or arranged rotatable or pivotable. These include, for example, the running jacket of a deflection roller or a tensioning system in connection with a tensioning roller, and guide rails or slide rails on which the traction means is guided or deflected.
- the material mixture is also suitable for elastic bearing eyes in the region of articulation points, via which a clamping system or a guide rail is fastened to the internal combustion engine.
- Figure 1 shows schematically the layout of a traction mechanism drive
- Figure 2 is a partially sectioned perspective view of a mechanically damped clamping system with integrated Reibkonus
- Figure 3 is an exploded view of a pivot lever tensioning system incorporating balanced mechanical damping
- Figure 4 shows the structure of a pivot-damped clamping system
- Figure 5 is an exploded view of a hydraulically damped clamping system.
- a traction mechanism drive 1 of an internal combustion engine in which a traction means 2, in particular a belt connects a plurality of pulleys, which are inter alia with a crankshaft, individual units or tensioning or deflection in combination.
- the drive of the traction mechanism drive 1 via a connected to the crankshaft 3 in connection, rotating in a clockwise pulley.
- the traction mechanism drive 1, also referred to as a unit drive further includes a water pump 4, an air conditioning compressor 5 and a generator 6 whose associated pulleys are at least partially enclosed by the traction means 2.
- the arrangement or position of the individual units results in a guide of the Buchmit- means 2, whereby the individual output gears of the units are arranged in the Switzerlandtrum 7.
- FIGS. 2 to 5 show different variants of tensioning systems with which the pretensioning of the traction means 2 in a traction mechanism drive 1 can be directly influenced.
- the description and the function of these known clamping systems is limited as far as possible to the components produced from the polyamide-polyethylene material mixture according to the invention.
- FIG. 2 shows a partial section of the construction of a mechanically damped clamping system 8a.
- the clamping system comprises a stationary housing 11, which encloses a friction cone 12, on which a pivot arm 13 is rotatably limited.
- the swivel arm 13 in the region of a hub 14 has a receptacle 15 corresponding to an outer contour of the friction cone 12.
- a torsion spring 16 inserted between the housing 11 and the hub 14 causes a rotation of the pivot arm 13 in a direction of rotation biasing the traction means 2.
- an axial force of the torsion spring 16 causes a displacement of the hub 14 and thus of the pivot arm 13 in a directed to the Reibkonus 12 position, whereby at the same time sets a damping of actuating movements of the pivot arm 13.
- the one made of polyamide polyethylene materials Reibkonus 12 containing damping device ensures effective low-noise damping from the beginning.
- the arranged between an end-side disc 17 and the housing 11 Reibkonus 12 serves to receive the hub 14 of the pivot arm 13.
- a rotatably mounted tension roller 19 which cooperates with the traction means 2 in the installed state.
- the tensioning roller 19 it is also suitable for the tensioning roller 19 to produce these from a polyamide-polyethylene material mixture.
- the tensioning system 8b shown in FIG. 3 shows a balanced, mechanically damped tensioning system in which the torsion spring 20 is held in a pot-like manner.
- taltet housing 21 is fixed with a first spring end.
- the further spring end of the torsion spring 20 is fastened to a cylindrical or tubular friction element 22, which abuts the outside in the installed state on an inner wall of the housing 21 and is further fixed to the pivot lever 23.
- the structure of the clamping system 8b further provides a plain bearing bush 24, which is inserted in the installed state in a hub 25 of the pivot lever 23 and supported on the pivot lever 23 via an end-side board frontally.
- the friction element 22 and the plain bearing bush 24 are preferably made of a polyamide-polyethylene material mixture.
- a pivot point-damped clamping system 8c shows the figure 4.
- the pivot lever 27 has a wedge ring 29 at the pivot point 28, the cone contour cooperating with a corresponding contact surface within the pivot lever 27.
- a wave spring 30 exerts via an intermediate ring 31 an axially and radially acting force on the wedge ring 29th out, which dampens immediately adjusting movements of the pivot lever 27.
- a receptacle 32 in conjunction with a bore 33 of the pivot lever 27 is intended for a tension roller not shown in Figure 4.
- FIG. 5 shows a hydraulically damped tensioning system 8d with the following construction.
- An over two axially spaced slide bearings 37a, 37b pivotable toggle 38 is provided at a first end for receiving the tension roller 39.
- a hydraulic tensioning element is articulated in a known construction.
- the clamping element 40 is provided in the region of the articulation points with bearing eyes 41 a, 41 b.
- Both the bearing lugs 41 a, 41 b and the slide bearings 37 a, 37 b are made of a polyamide-polyethylene polyethylene material.
Landscapes
- 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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007055664A DE102007055664A1 (de) | 2007-11-21 | 2007-11-21 | Werkstoffmischung aus Polyamid-Polyethylen für Spannsysteme |
| PCT/EP2008/064770 WO2009065716A1 (de) | 2007-11-21 | 2008-10-31 | Werkstoffmischung aus polyamid-polyethylen für spannsysteme |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2222982A1 true EP2222982A1 (de) | 2010-09-01 |
Family
ID=40219477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08852413A Withdrawn EP2222982A1 (de) | 2007-11-21 | 2008-10-31 | Werkstoffmischung aus polyamid-polyethylen für spannsysteme |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2222982A1 (de) |
| DE (1) | DE102007055664A1 (de) |
| WO (1) | WO2009065716A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2667916B1 (fr) * | 1990-10-16 | 1992-12-04 | Caoutchouc Manuf Plastique | Dispositif de tension d'un galet tendeur pour transmission par lien souple, fonctionnant par deformation elastique d'un solide parallelepipedique deformable. |
| US5632697A (en) | 1995-12-18 | 1997-05-27 | The Gates Corporation | Damping mechanism for a tensioner |
| JP4052777B2 (ja) * | 2000-02-17 | 2008-02-27 | Ntn株式会社 | ベルト張力調整装置 |
| JP4088118B2 (ja) * | 2002-08-02 | 2008-05-21 | 本田技研工業株式会社 | オートテンショナ |
| CA2501567C (en) * | 2002-10-10 | 2009-04-14 | The Gates Corporation | Tensioner |
| JP2005127380A (ja) | 2003-10-22 | 2005-05-19 | Mitsuboshi Belting Ltd | オートテンショナー |
| DE102004055421A1 (de) | 2004-11-17 | 2006-05-18 | Schaeffler Kg | Gleit- oder Reibelement, insbesondere Zugmittelführung |
| DE102005046571B4 (de) | 2005-09-22 | 2016-01-21 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Polyamid-Polyethylen-Materialien mit kompatibilisierter Polyethylen-Phase und Verfahren zu ihrer Herstellung |
| DE202006006861U1 (de) * | 2006-04-28 | 2007-08-30 | JOH. WINKLHOFER & SÖHNE GMBH & Co. KG | Kettenspanner mit Deckelelement |
-
2007
- 2007-11-21 DE DE102007055664A patent/DE102007055664A1/de not_active Withdrawn
-
2008
- 2008-10-31 EP EP08852413A patent/EP2222982A1/de not_active Withdrawn
- 2008-10-31 WO PCT/EP2008/064770 patent/WO2009065716A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009065716A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007055664A1 (de) | 2009-05-28 |
| WO2009065716A1 (de) | 2009-05-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20100621 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20160503 |
|
| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230522 |