WO2019105500A1 - Reibteil - Google Patents
Reibteil Download PDFInfo
- Publication number
- WO2019105500A1 WO2019105500A1 PCT/DE2018/100893 DE2018100893W WO2019105500A1 WO 2019105500 A1 WO2019105500 A1 WO 2019105500A1 DE 2018100893 W DE2018100893 W DE 2018100893W WO 2019105500 A1 WO2019105500 A1 WO 2019105500A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- friction
- zones
- radial
- radially
- zone
- Prior art date
Links
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 description 24
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000011835 investigation Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 210000001744 T-lymphocyte Anatomy 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000012773 waffles Nutrition 0.000 description 1
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
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
- F16D13/648—Clutch-plates; Clutch-lamellae for clutches with multiple lamellae
-
- 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
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/72—Features relating to cooling
-
- 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
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/52—Clutches with multiple lamellae ; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member
-
- 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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
-
- 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
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
-
- 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
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0289—Details of friction surfaces of the lock-up clutch
Definitions
- the invention relates to a friction part, in particular for a wet-running, friction-operated device, such as a wet-running friction clutch or friction brake, having at least one friction surface, the friction zones, which are separated from each other in the radial direction by interposition of a circumferentially extending groove band ,
- the invention further relates to a wet-running lamellar clutch or multi-disc brake with at least one such friction part.
- a clutch plate which comprises a plurality of radially separated friction zones, between which a plurality of circumferentially extending grooves are arranged.
- a wet-running, frictionally engaged device such as a wet-running friction clutch or friction brake
- the object is with a friction part, in particular for a wet-running, friction-operated device, such as a wet-running friction clutch or friction brake, with at least one friction surface, the friction zones, which separated in the radial direction by interposition of a circumferentially extending groove strip are achieved in that at least one dimension of the friction zones and / or at least one groove strip is optimized with respect to the cooling behavior of a device equipped with the frictional frictionally operating device.
- the friction zones can also be referred to as friction power zones.
- a friction zone or a friction power zone corresponds to a region in which the friction part, which is preferably designed as a friction plate, has direct contact with a counter surface, which is provided, for example, on a steel plate.
- the claimed design of the friction design of the friction part creates a plurality of radially separated Reibzo- nen with preferred radial dimensions and positions, which has a positive influence on the cooling behavior of equipped with the friction friction-frictional device, in particular friction clutch or multi-plate clutch, has.
- the friction power is no longer introduced radially during a slip phase, but within at least two, self-contained friction power zones or friction zones, which are separated from one another by an interposed groove band .
- the friction design of the friction part, in particular of the friction plate is configured in such a way that at least two separate friction zones or friction-relief zones arise over the radius.
- the local power input can positively influence the temperature profile of the friction part such that the driving temperature difference between the surface of the friction part, in particular the fin surface, and a fluid used for cooling is maximized, whereby the energy absorption by the fluid is also maximized.
- the thermal conductivity of the fluid is better utilized when the peak friction part temperature, in particular a peak fin temperature, decreases.
- a preferred embodiment of the friction part is characterized in that a radial dimension of a radially innermost friction zone of a total of three friction zones is approximately one to two times a sum of the radial dimensions of the two radially outer friction zones.
- the terms axial, radial and circumferential direction refer to a rotational axis of the friction part.
- Axial means in the direction or parallel to the axis of rotation.
- Radial means transverse to the axis of rotation.
- Each of the three friction zones takes the form of concentrically arranged annular surfaces. Between a first and a second friction zone, a first groove band is arranged. Between a second and a third friction zone, a second groove band is arranged. In the
- Friction zone is arranged a friction lining.
- the friction lining can be made in one piece or in several parts.
- the friction lining advantageously comprises a large number of friction lining pieces, which are also referred to as pads.
- the friction lining pieces or pads are partially spaced from each other, so that arise in the friction zones grooves that allow the passage of fluid.
- a groove zone is a boundary zone between two friction zones.
- the groove band is bounded radially inwardly by an outer diameter of an inner friction zone and radially outwardly by an inner diameter of an outer friction zone.
- a further preferred exemplary embodiment of the friction part is characterized in that a radial dimension of a radially innermost friction zone of a total of four friction zones is approximately 0.5 to 1 times a sum of the radial dimensions of the three radially outer friction zones.
- the four friction zones have the shape of circular ring surfaces, which are arranged concentrically. Between each two friction zones a groove band is arranged.
- a further preferred embodiment of the friction part is characterized in that a radial dimension of a radially outermost friction zone is approximately 0.75 to 2 times the radial dimension of a radially outermost groove band.
- a further preferred embodiment of the friction part is characterized in that a radial dimension of a radially innermost friction zone of a total of two or three friction zones is approximately 0.5 to 3 times the radial dimension of a radially innermost groove band.
- a further preferred embodiment of the friction part is characterized in that a ratio of a sum of the radial dimensions of all friction zones to a total radial dimension of a contact region is about fifty to eighty percent.
- the radial contact region comprises all friction zones and the groove strips arranged between the friction zones.
- a further preferred exemplary embodiment of the friction part is characterized in that a radially outermost groove band starts at a total of three and four friction zones in the radial direction at approximately between fifty and seventy-five percent of the one or the contact area.
- a further preferred exemplary embodiment of the friction part is characterized in that a radially outermost groove band starts at a total of two friction zones in the radial direction at approximately between forty to fifty percent or one of the radial overall dimension of the contact area.
- a further preferred embodiment of the friction part is characterized in that a radially innermost groove band in the radial direction begins at approximately between thirty and sixty percent of one or the overall radial dimension or the contact region.
- the invention further relates to a wet-running multi-plate clutch or disk brake with at least one previously described friction part.
- the friction part is advantageous on both sides with the above-described friction zones and groove strips fitted.
- the groove design in the friction zones can be carried out in a manner similar to that of conventional friction disks.
- Figure 1 is designed as a friction blade friction member having a friction surface
- Friction zones which are separated by a circumferentially extending groove strip from each other, according to a firstticiansbei- game in plan view;
- FIG. 2 shows a Cartesian coordinate diagram in which friction performance curves in the friction zones of the friction part from FIG. 1 and an associated temperature profile over the radius of the friction part are shown;
- Figure 3 is a similar friction member as in Figure 1 in plan view according to a second
- Figure 4 shows a friction member with a friction surface according to a third embodiment with three friction zones and two Nutb forn in plan view;
- FIG. 5 shows a Cartesian coordinate diagram in which friction performance curves and a temperature profile over a radius of the friction part from FIG. 4 are shown;
- FIG. 6 shows a bar diagram in which dimensions of friction zones and groove bands of friction parts, as shown in FIGS. 1, 3 and 4, according to a total of twenty embodiments with regard to the cooling behavior of a friction-fitted motor equipped with such a friction part. processing device are optimized.
- Figs. 1; 3 and 4 are three embodiments of a friction member 1; 21; 41 with a support element 2; 22; 42 in the plan view of a friction surface 3; 23; 43.
- the support element 2 is, for example, a support plate, on which for the representation of the friction surface 3; 23; 43 friction lining pieces 4, 5; 24, 25; 44 to 46 are glued.
- the friction lining pieces 4, 5; 24, 25; 44 to 46 are arranged in a defined groove pattern and spaced from each other so that fluid passage regions 6 to 8; 26 to 28; 47 to 50, which are also referred to as grooves.
- the friction lining pieces 4, 5 have the shape of squares which are arranged in a waffle pattern such that the fluid passage regions 6 extend in the vertical direction and the fluid passage regions 7 in the horizontal direction in FIG.
- the friction surface 3 comprises two friction zones 11, 12, which are separated from each other by the fluid passage region 8, which represents a groove band 15.
- FIGs 1, 3 and 4 are indicated by circular arcs r2 and r7, an outer diameter and an inner diameter of a steel plate, not shown, with which the friction surface 3; 23; 43 in operation with the friction part 1; 21; 41 equipped multi-plate clutch comes into contact.
- the contact area between the steel plate and the friction part 1 designed as a friction plate; 21; 41 is bounded radially inward by an inner diameter or inner radius r6. Radially outward, the contact area between the steel plate and the friction plate 1; 21; 41 limited by an outer diameter or outer radius r5.
- a is the heat coefficient
- A is the area effective for the heat exchange
- the two temperatures are the temperature difference between the fin surface and the fluid.
- the product of the three terms must be maximized.
- the invention provides a contribution to how the last term, the temperature difference, can be maximized without increasing the local peak temperature of the fin.
- the frictional design of the blade in at least two, over the full three hundred and sixty degree circumference from each other by a circumferential groove band 15; 35; 55, 56 separate friction zones or friction power zones 11, 12; 31, 32; Split 51 to 53.
- the first self-contained friction zone or friction power zone 11 extends from the diameter r6 to a first partial diameter rn, RL.
- the second friction zone or friction power zone 12 extends from a second partial diameter rt2, RL to the diameter r5.
- the groove, through which the fluid flows as a groove band 15, is formed over the full circumference, so that no contact between the steel disk and the friction disk 1 takes place here.
- a friction chamber is an annular space which is delimited radially inward by an inner disk carrier and radially outward by an outer disk carrier. In the friction chamber, the friction parts or Reiblamel- len are arranged in alternation with the steel plates. Is in the radially innermost
- Friction power zone 11 transferred locally more power, the fin temperature increases more and the difference to the fluid temperature increases.
- FIG. 2 in a Cartesian coordinate diagram, on whose x-axis the radius r is plotted in a suitable unit of length, an exemplary temperature profile of the friction disk 1 from FIG. 1 and two lines 16 is schematically indicated by a line 19 , 17 shows the now shared friction performance. It can be seen that two friction zones 11, 12 corresponding to the circumferential groove band 15 are present. The contact area 18 still defines the limits of the contact of friction plate and steel plate.
- the friction plate 1 has the maximum temperature or peak temperature.
- the friction lining pieces 24, 25 are designed differently than in the case of the friction part 1 in FIG. 1.
- the core idea of the invention is independent of the friction lining design.
- the invention is not limited to two friction power zones 11, 12; 31, 32, but rather a division into three or more power zones is possible.
- Friction zones or friction zones 51 to 53 with different dimensions in the radial direction or width The innermost friction zone extends from r6 to rti, Ri_, the middle of rt2, RL to rt3, RL, the outermost of rt4, RL to r5.
- the areas between them are designed as circumferential grooves, which are referred to as groove strips 55, 56 and represent flow areas for the fluid.
- FIG. 5 the temperature curve over the friction part 41 from FIG. 4 with the three friction power zones or friction zones 51 to 53 and the two circumferential groove belts 55, 56 are shown schematically in the same way as in FIG.
- the lines 61 to 63 represent the tripartite friction performance curve.
- the line 65 shows the associated temperature profile of the friction plate 41.
- 66 denotes the peak temperature of the friction plate 41.
- FIG. 6 shows a selection of cross-sectional profiles F01 to F20 of the friction plate according to the invention, which show preferred embodiments in the sense of the claimed invention.
- the profiles F01 to F20 were designed in the experiments and examinations carried out in the context of the invention on the basis of technically usual driving situations and have a lower peak plate temperature compared to conventional friction plates and, consequently, a lower thermal load.
- FIG. 6 The cross-sectional profiles in FIG. 6 are normalized to identical lengths. Between the radii r6 and r5, the contact area 80 extends from the friction plate and the clutch plate or steel plate. By hatched bars 71 and 72 areas without contact between the friction plate and the steel plate are indicated. By means of bars 73 to 76, friction zones are indicated which are separated from one another by groove strips 77 to 79.
- the profiles F01 and F02 show two possible embodiments with two separate friction zones 73, 74.
- the profiles F3 to F17 show embodiments with three separate friction zones 73 to 75.
- the profiles F18 to F20 show configurations with four radially separated Reibzonen73 to 76th
- the radial length of the radially innermost friction zone should be approximately one to two times the sum of the two radial outer friction zones. With four friction zones, the radial length of the radially innermost friction zone should be approximately 0.5 to 1 times the sum of the three radially outer friction zones.
- the radial length of the radially outermost friction zone should be about 0.75 to 2 times the radial length of the radially outermost groove band.
- the radial length of the radially innermost friction zone should be approximately 0.5 to 3 times the radial length of the radially innermost groove band.
- the ratio of the sum of the radial length of all friction zones to the total radial contact area length should be about fifty to eighty percent. With three and four friction zones, the radially outermost groove band should begin radially approximately between fifty and seventy-five percent of the total radial contact area length.
- the radially outermost groove band should begin radially approximately between forty to fifty percent of the total radial contact area length.
- the radially innermost groove band should begin radially approximately between thirty to sixty percent of the total radial contact region length.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112018006116.7T DE112018006116A5 (de) | 2017-11-30 | 2018-11-05 | Reibteil |
CN201880069995.3A CN111279091A (zh) | 2017-11-30 | 2018-11-05 | 摩擦部件 |
US16/767,252 US20200408263A1 (en) | 2017-11-30 | 2018-11-05 | Frictional part |
JP2020519306A JP6997302B2 (ja) | 2017-11-30 | 2018-11-05 | 摩擦部材 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017128403.6A DE102017128403A1 (de) | 2017-11-30 | 2017-11-30 | Reibteil |
DE102017128403.6 | 2017-11-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019105500A1 true WO2019105500A1 (de) | 2019-06-06 |
Family
ID=64316243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2018/100893 WO2019105500A1 (de) | 2017-11-30 | 2018-11-05 | Reibteil |
Country Status (5)
Country | Link |
---|---|
US (1) | US20200408263A1 (de) |
JP (1) | JP6997302B2 (de) |
CN (1) | CN111279091A (de) |
DE (2) | DE102017128403A1 (de) |
WO (1) | WO2019105500A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7441149B2 (ja) * | 2020-09-23 | 2024-02-29 | 株式会社ジェイテクト | 湿式摩擦ディスク |
JP7441150B2 (ja) | 2020-09-23 | 2024-02-29 | 株式会社ジェイテクト | 湿式摩擦ディスク及び摩擦係合装置 |
CN116292691B (zh) * | 2023-02-08 | 2023-09-15 | 河南科技大学 | 一种用于鼓式制动器的柔性接触吸热降温循环控制装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4995500A (en) | 1986-09-16 | 1991-02-26 | Borg-Warner Corporation | Groove pattern for high thermal capacity wet clutch |
US5738198A (en) * | 1994-01-21 | 1998-04-14 | Luk Getriebe-Systeme Gmbh | Friction element for use in clutches |
WO2001063149A1 (de) * | 2000-02-23 | 2001-08-30 | Zf Friedrichshafen Ag | Reibkupplung, insbesondere wandlerüberbrückungskupplung für einen hydrodynamischen drehmomentwandler |
US20070017773A1 (en) * | 2005-07-20 | 2007-01-25 | Nsk-Warner K.K. | Friction plate for wet-type multi-plate clutch |
EP2618016A1 (de) * | 2012-01-19 | 2013-07-24 | Jtekt Corporation | Kupplungsscheibe und Verfahren zur Herstellung davon |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2144223A (en) * | 1938-05-17 | 1939-01-17 | Klocke William | Friction plate |
JPH045519U (de) * | 1990-05-02 | 1992-01-20 | ||
US5566802A (en) * | 1995-07-17 | 1996-10-22 | Borg-Warner Automotive, Inc. | Continuous slip hydrokinetic torque converter clutch interface with curcuitous groove for cooling and wetting clutch interface zone |
JP2004211781A (ja) | 2002-12-27 | 2004-07-29 | F C C:Kk | 湿式クラッチ用摩擦板 |
DE10342271B4 (de) * | 2003-09-12 | 2014-07-10 | Zf Friedrichshafen Ag | Reibbelag-Lamelle |
WO2009021569A1 (de) * | 2007-08-15 | 2009-02-19 | Borgwarner Inc. | Reibteil mit einer zickzack- oder wellenförmig umlaufenden nut in der reibfläche |
FR2956710B1 (fr) * | 2010-02-22 | 2012-03-16 | Valeo Materiaux De Friction | Garniture de friction a sec, en particulier pour un embrayage de vehicule automobile |
JP5333651B2 (ja) * | 2010-03-12 | 2013-11-06 | トヨタ自動車株式会社 | ロックアップクラッチ |
US20170370423A1 (en) * | 2016-06-23 | 2017-12-28 | GM Global Technology Operations LLC | Clutch plate having discontinuous friction material pattern |
-
2017
- 2017-11-30 DE DE102017128403.6A patent/DE102017128403A1/de not_active Withdrawn
-
2018
- 2018-11-05 WO PCT/DE2018/100893 patent/WO2019105500A1/de active Application Filing
- 2018-11-05 US US16/767,252 patent/US20200408263A1/en not_active Abandoned
- 2018-11-05 CN CN201880069995.3A patent/CN111279091A/zh active Pending
- 2018-11-05 DE DE112018006116.7T patent/DE112018006116A5/de active Pending
- 2018-11-05 JP JP2020519306A patent/JP6997302B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4995500A (en) | 1986-09-16 | 1991-02-26 | Borg-Warner Corporation | Groove pattern for high thermal capacity wet clutch |
US5738198A (en) * | 1994-01-21 | 1998-04-14 | Luk Getriebe-Systeme Gmbh | Friction element for use in clutches |
WO2001063149A1 (de) * | 2000-02-23 | 2001-08-30 | Zf Friedrichshafen Ag | Reibkupplung, insbesondere wandlerüberbrückungskupplung für einen hydrodynamischen drehmomentwandler |
US20070017773A1 (en) * | 2005-07-20 | 2007-01-25 | Nsk-Warner K.K. | Friction plate for wet-type multi-plate clutch |
EP2618016A1 (de) * | 2012-01-19 | 2013-07-24 | Jtekt Corporation | Kupplungsscheibe und Verfahren zur Herstellung davon |
Also Published As
Publication number | Publication date |
---|---|
JP6997302B2 (ja) | 2022-01-17 |
JP2020536209A (ja) | 2020-12-10 |
DE102017128403A1 (de) | 2019-06-06 |
DE112018006116A5 (de) | 2020-08-13 |
US20200408263A1 (en) | 2020-12-31 |
CN111279091A (zh) | 2020-06-12 |
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