• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a building box for producing friction couplings and friction couplings produced by means of the building box with a counter-pressure plate comprising a friction surface, with a housing connected thereto rotatably, with a pressing plate comprising a friction surface, with at least one axially rotatable coupling plate. in relation to a number of coupling discs with a reduced number of intermediate plates arranged between counterpressure plate and pressing plate with friction surfaces arranged on both sides, with at least one coupling disc arranged on both sides, a frictional engagement with a respective friction surface forming, abrasion-resistant friction housings, pressing plate depending on a position of a maneuvering device biased disc spring, with pressing plate and, where applicable, intermediate plate / plates rotatably connecting to the housing and axially moved against the action of the disc spring exciting energy storage devices and a post-adjustment device which automatically compensates for a wear of the friction coatings, which post-adjustment device comprises a ramp device arranged between the disc spring and the pressing plate with a spacing between the disc spring and the pressing plate. of the ramp device by means of a spindle gear received on the pressing plate, which guide device comprises a torsionally fixed with a spindle of the spindle gear received and an external tooth device with constant tooth spacing having gears and a drive element with at least one hook, which drive element is biased against an axially elastic relative to the housing bolt which at an operating point at closed friction clutch sets a predetermined bolt distance to the disc spring, and which said at least one hook slides und is a lifting movement with a predetermined lifting path in relation to the pressing plate within the bolt distance on the gear, hooks in the present wear shaped into the external tooth device and turns the gear by a predetermined amount at a subsequent opening movement of the pressing plate. In order to be able to satisfy many different uses of friction clutches with as many identical components as possible, the gear and the predetermined bolt distance are identically provided regardless of the number of clutch discs and a readjustment ratio of the friction clutches of the construction box is, regardless of the number of longitudinal clutch discs used. the hooks are set identically.
    公开号:SE1450580A1
    申请号:SE1450580
    申请日:2014-05-19
    公开日:2015-01-17
    发明作者:Gerd Ahnert；Maria Fischer
    申请人:Schaeffler Technologies Gmbh；
    IPC主号:
    专利说明:

    15 20 25 2 the readjustment geometry of the readjustment device. In this case, the bolt distance is substantially independent in that the bolt serving as the stop and the bolt distance setting is axially elastically received in relation to the housing. If the lifting path of the pressing plate exceeds the bolt distance when the friction coupling opens, the bolt is displaced in relation to the housing after the bolt distance has been exceeded. The lifting path is then only slightly longer than the relative path determined by the bolt distance. Therefore, when tuning the readjustment device to a friction clutch with a single clutch disc such as a single disc clutch, the drive element is operated with at least one hook always only with a small path during elastic displacement of the bolt.
    If several clutch discs are to be used in a friction clutch, a corresponding, significantly larger lifting path must be provided at the point of contact of the disc spring to the pressing plate in relation to the single-clutch clutch to enable air play at all clutch discs and thus enable a fault-free separation of the friction clutch. In addition, if as far as possible, many similarly constructed parts are to be used in a construction box with one or more clutch plates, for example in uses for trucks, buses, etc., unfavorable operating conditions follow, in particular with the readjustment device. The lifting path is in this case considerably longer than the relative path determined by chin distance, bolt distance and tooth distance. Consequently, the drive element is pressed with a substantially longer path against the elastic bolt when lifting a pressing plate which clamps several coupling discs and is loaded significantly more strongly dynamically. Furthermore, the range of motion must be taken into account for further pushing back of the drive hook in the construction space.
    The object of the invention is therefore to propose a construction box for the production of friction couplings with a variable number of inserted clutch discs and by means of which friction couplings produced, which construction box is provided with a large number of equal parts, in particular of the readjustment device. In this case, the word equal share here and throughout the document refers to what in German is called gleichteil. In one example, the word equal share means that a part is exactly the same, even if it is used under different circumstances and / or in different embodiments of a larger unit. The object is solved by the characterized parts in claim 1 and by the articles according to the independent claims 9 and 10. The subclaims dependent on claim 1 represent advantageous embodiments of the invention.
    In contrast to the state of the art mentioned above, the gear and the predetermined bolt distance are identically provided regardless of the number of clutch discs and a readjustment ratio of the friction clutches of the construction box is exclusively set by the number and length of hooks identically set regardless of the number of clutch discs used. This is advantageously done in that a number of hooks with a pitch within a tooth distance correspond to at least a number of clutch discs assigned to the construction box of the friction clutch. In this case, the tooth distance of the gear is preferably adapted to a larger lift of a friction clutch provided with several clutch discs, such as a multi-disc clutch.
    By a stepwise division of the hook length, at this large tooth distance a readjustment procedure with a little lifting can be achieved even with friction couplings with fewer, in particular only one coupling disc. Furthermore, depending on the equipment of the friction clutch with a variable number of clutch discs, different drive elements with corresponding number and length of hooks can be provided.
    For example, with a maximum number of clutch discs provided in a friction clutch, a drive element with a single hook may be provided. Alternatively, with a maximum provided number of coupling discs, a drive element can be formed with several, equally long hooks arranged next to each other.
    In the case of a single coupling disc provided in a friction clutch, hooks arranged next to each other with a division of a tooth distance with a number of hooks with evenly arranged hook distances are arranged for the reduction of the coupling distance for readjustment of the wear. In the case of a number of numbers used in a friction clutch greater than one, a division of the hook distance of the hooks within a tooth distance is formed by the ratio of the number of clutch discs used in this friction clutch divided by the maximum number of clutch discs used in this friction clutch. a construction box with friction couplings with one and with two coupling discs, that two hooks are provided when using a coupling disc, one hook being shortened or extended by half a tooth distance in relation to the other hook and both hooks being equally long in use of two coupling discs.
    Furthermore, additional components of the construction box can be trained as equal parts.
    For example, the disc spring, ramp device, pressing plate and / or counter-pressing plate may be identically provided regardless of the number of coupling discs.
    Furthermore, the housing can be identically provided regardless of the number of coupling discs. In this case, an intermediate ring is arranged between the back pressure plate and the housing, which intermediate ring equalizes at least one axial width of at least one further coupling disc and of at least one intermediate plate.
    In particular, friction couplings are proposed which are made from the proposed construction box and which have a single coupling disc and several hooks arranged next to each other, with hooks divided along a tooth distance evenly.
    By means of this construction box, friction couplings can also be produced which have two coupling discs and a single hook or two hooks with the same distance in relation to the external tooth device.
    DESCRIPTION OF THE FIGURES The invention is explained in more detail with reference to the exemplary embodiment shown in Figures 1 to 4. In this case: Figure 1 shows a partial section of a friction coupling which can be rotated about an axis of rotation, two clutch discs.
    Figure 2 is a diagram of a relative movement of a drive element in relation to a gear depending on the lifting path of the pressing plate in a two-disc coupling.
    Figure 3 is a diagram of a relative movement of a drive element in relation to a gear depending on the lifting path of the pressing plate during a single-disc coupling.
    Figure 4 is a schematic representation of a drive element with a single hook in two positions in relation to the gear and Figure 5 is a schematic representation of a drive element with two hooks in two positions in relation to a gear. DESCRIPTION OF EMBODIMENTS Figure 1 shows one half of the friction clutch 1 rotatable about the axis of rotation d, made by a common construction box. The friction clutch 1 is in the manufactured form designed as a multi-disc clutch - here as a two-disc clutch with two clutch discs 2, 3.
    The friction coupling 1 comprises the only partially produced counter-pressure plate 4 with the friction surface 5, the pressing bearing 6 with the friction surface 7 accommodated by means of only spring-loaded energy storage devices 19 such as leaf springs rotatably and axially displaceable at the housing 15 and the intermediate plate 8 with friction surfaces 10 arranged on both sides. 7, 9, 10 form with the friction coatings 11, 12, 13, 14 of the coupling discs 2, 3 a respective frictional engagement. The back pressure plate 4 receives the housing 15 through the intermediate ring 16.
    The intermediate plate 8 is by means of only indicated energy storage devices 20 such as leaf springs rotatably and axially displaceably received at the intermediate ring 16, so that these can form a building unit. If this building unit is omitted, a friction coupling designed as a single-disc coupling can be produced from the remaining building parts by means of the same building box which is each time formed from equal parts. The friction clutch 1 is closed in the non-activated state, in that the disc spring 17 is axially tensioned between the housing and the pressing plate 6 and thereby prestresses the pressing plate 6 against the counterpressure plate 4. By means of the resulting frictional engagement, the maximum transferable torque from the counterpressure plate 4 In the case of an axial displacement of the disc spring tongues 18 arranged radially inside the disc spring 17 by means of a non-manufactured operating device in the direction of the counterpressure plate 4, the bias of the disc spring 17 against the pressing plate 6 is released and the friction clutch 1 is opened. In this case, the pressing plate 6 moves from the operating point in the opening direction in the direction of the lifting point 21 of the disc spring 17 at the housing 15. The energy storage devices 19, 20 pressing the pressing plate 6 and the intermediate plate, respectively, press in the direction of the lifting spring 21 in the direction of the lifting spring. until the complete separation of the friction closure. During the operating time of the friction clutch 1, the friction linings 11, 12, 13, 14 wear so that during non-compensated operation the pressing plate 6 is displaced at the operating point in the direction of the back pressure plate and the disc spring 17 stands up. This has negative consequences as a result, so that the readjustment device 22 is provided for automatic compensation of the friction coating wear. The readjustment device 22 is formed by the ramp device 23 arranged between the disc spring 17 and the pressing plate and the invisible spindle gear with the gear 24 and by the drive element 25 arranged at the housing 15. The basic structure and function of the readjustment device 22 are described, for example, in WO2009 / 056092 A1. When the pressing plate 6 is displaced in the opening direction, a predetermined relative path is first allowed along the entire lift between the hook 26 of the drive element 25 and the gear 24 biased in the direction of the pressing plate 6 and the gear 24 by means of the bolt distance BA between disc spring 17 and bolt 27. the bolt 27 is taken along and displaced towards the housing 15, so that there is no longer any relative movement between the hook 26 and the gear 24 along the remaining lift. The bolt distance BA is then at most equal to the tooth distance ZW between two teeth of the external tooth device 28 of the gear 24, so that the hook 26 during the non-adjusting normal operation of the friction clutch slides on the external tooth device 28 during opening and closing procedures. If the pressing plate 6 is displaced by wear of the friction linings 11, 12, 13, 14 by a predetermined dimension, the hook 26 hooks fitted in between two teeth of the external tooth device 28. In the next opening procedure the gear 24 is rotated by the amount of bolt distance BA and the ramp device 23 is displaced via the non-manufactured spindle gears rotatably coupled to the gear wheel to an extended distance between disc spring 17 and pressing plate 6, whereby the closure of the friction coatings is at least partially and stepwise compensated.
    Due to a possible small number of components of the friction clutch 1, many components of the construction box are produced as far as possible, for example the back pressure plate 4, clutch plates 2, 3, housing 15, pressing plate 6, disc spring 17, small parts and in particular the gear wheel preferably made by a sintering method. 24, as equal shares. Due to different lifting paths with different numbers of coupling discs 2, 3 used, for example a lifting path substantially doubled in relation to a single-disc coupling in the construction box, the easily variable variable operating element 25 and the associated hook 26 for 2G are varied in the construction box. Providing a correct readjustment ratio. In this case, the tooth distance ZW of the gear 24 is adapted to the maximum number of coupling discs 2, 3 provided and the bolt distance is set the same each time. In the embodiment shown, the maximum number of coupling discs 2, 3 is two, so that a single hook 26 is sufficient at a tooth distance ZW equal to bolt distance BA. If the coupling disc 3 and the intermediate ring 16 with the intermediate plate 8 are omitted, this results in a single-disc coupling with a desired lifting path. In order to still be able to provide the readjustment device 22 with the same function for short lifting paths, a drive element with two different lengths of hooks is provided which enables a change of the readjustment device 22 at a half tooth distance (ZW) by the hooks producing a readjustment alternately each time.
    Figure 2 shows with reference to figure 1 the diagram 29 with the relative path RW between the hook 26 and the gear 24 along the lifting path AW of the pressing plate 6 from figure 1. Along the tooth distance ZW the fresh displacement of the hook 26 at the gear 24 takes place proportionally. When the bolt distance BA is fully occupied, the disc spring 17 carries the bolt 27 and thus the drive element 25 with the hook 26 against the action of the prestressing force VK of the drive element 25 against the bolt 27, so that a relative displacement of the gear 24, which is accommodated on the disc spring 17 following the pressing plate 6, in relation to the hook 26, is canceled for the remaining slope path AW.
    Figure 3 shows the diagram 30 with a post-adjustment device with shortened lifting path AWUE) adapted in relation to the lifting path AW and the tooth distance ZW of the friction clutch 1 according to figure 1. In this case, the bolt distance BA corresponds to half the tooth distance ZW / Z.
    In this case, two hooks, which perform the relative path RW to the gear, are provided at the drive element, these having a distance corresponding to half a tooth distance, so that a pre-fitting to the gear takes place each time at half a tooth distance ZW. tipping paths larger than the lifting path AW (E) are not provided for the single-disc coupling. Correspondingly, the possible prestressing force VK of the drive element for the lifting path AW is not relevant.
    Figure 4 schematically shows the chin 26 of a two-disc clutch corresponding to the friction clutch 1 in Figure 1 on the gear 24 between two teeth 31, 32 corresponding to the condition of the closed friction clutch 1 and the right part shows the opened condition. If wear occurs at the friction linings 11, 12, 13, 14, the gear 24 is displaced towards the hook 26 and hooks in between the teeth 31, 32. When opening the friction coupling 1, the hook 26 then rotates within the bolt distance BA the gear with a maximum tooth spacing and slides at closing of the friction clutch 1 to tooth 32.
    Figure 5 shows schematically the drive element 25a, 25a 'with two hooks 26a, 26b sliding next to each other, sliding on the gear 24. Depending on the use of a single-disc or two-disc coupling, the hatched section 33 of the hook 26b is shortened or maintained. The left-hand part shows the drive element 25a for a two-disc clutch corresponding to the friction clutch 1 in Figure 1 with equally long hooks acting at a tooth spacing ZW in closing shape with the gear. The right part shows the drive element 25a 'with shortened section 33. The shortening takes place with a half tooth spacing ZW / 2, so that an alternating form closure of one of the two hooks 26a, 26b takes place at tooth spacing ZW / 2 at a single disc coupling with a gear 24 with the same tooth distance ZW as the two-disc coupling.
    LIST OF HANDLING DESIGNATIONS friction clutch clutch disc clutch disc counter-pressure plate friction surface friction surface friction surface intermediate plate KDOOMGSLD-BLUNH friction surface l-ï Û friction surface l- * l fl friction coating l-friction coating l-ï U! intermediate ring 17 18 19 20 21 22 23 24 25 25a 25a '26 26a 26k) 27 28 29 30 31 32 33 AW AVWE) BA RW VK ZW ZW / E ta iks riksfjäder disc spring spring tongue energy storage device energy storage device leverage e fi adjustment device ramp device haugement drive element hai drive element dental device diagram diagram tooth tooth section lifting path Iyftväg bolt distance vridaxei reiativväg prestressing force tooth spacing haivt tooth spacing
    权利要求:
    Claims (1)
    [1]
    Construction box for the production of friction couplings (1) with a back pressure plate (4) comprising a friction surface (5), with a housing (15) connected thereto with a torsionally fixed housing, with a pressing plate (6) comprising a friction surface (7), with at least one coupling clamp (2, 3) axially tensionable between counterpressure plate (4) and pressing plate (6), with a reduced number of intermediate pressure plate (4, 3) in relation to a number of coupling plates (2, 3) and pressing plate (6) arranged intermediate plates (8) with friction surfaces (9, 10) arranged on both sides, with on both sides at said at least one coupling disc (2, 3) arranged, a frictional engagement with a respective friction surface (5, 7, 9 , 10) forming, abrasion-resistant friction coatings (11, 12, 13, 14), with a disc spring (17) biased between a housing (15) and a pressing plate (6), depending on a position of an actuator, with a pressing plate (6) and in case intermediate plate (s) (8) v riding-fastened to the housing (15) connecting and axially biasing energy storage devices (19, 20) against the action of the disc spring (17) and a post-adjustment device (22) which automatically compensates for a wear of the friction coatings, which post-adjustment device (22) comprises an intermediate disc (17) pressing plate (6) arranged ramp device (23) with ramps arranged above the circumference, raising a distance between disc spring (17) and pressing plate (6) and a guide device which, at a determined post-clearance condition, rotationally drives a ramp ring of the ramp device (23) by means of a spindle gear (6) receiving the pressing plate (6), which guide device comprises a torsionally fixed with a spindle of the spindle gear received and a gear (24) having a constant tooth spacing (ZW) having an external tooth device (28) and a drive element (25, 253, 25a ') with at least one hook (26, 26a, 26h), which drive element (25, 25a, 25a ') is biased against an axial elastic in relation to the housing (15) biased bolt (27) which at an operating point at closed friction clutch (1) sets a predetermined bolt distance (BA) to the disc spring (17), and which said at least one hook (26, Zöa, 25a ') slides during a lifting movement with a predetermined lifting path (AW) in relation to the pressing plate (few) within the bolt distance (BA) on the gear (24), hooks in the present wear shaped into the external tooth device (28) and turns the gear (24) by a predetermined amount in a subsequent opening movement of the pressing plate (ö), characterized in that the gear (24) and the predetermined bolt distance (BA) are identically provided independently of the number of clutch discs (2, 3) and that a readjustment ratio of the friction clutches (1) ) of the construction box is, independently of the number of coupling discs (2, 3) used, exclusively by number and length of the hooks (26, 26a, 26b) identically set. Construction lock according to Claim 1, characterized in that a number of hooks (26, 26a, 26b) with a pitch within a tooth distance (ZW) correspond to at least a number of coupling discs (2, 3) arranged in the construction box of a friction clutch. Construction box according to Claim 1 or 2, characterized in that a drive element (25) with a single hook (26) is provided at a maximum number of coupling discs (2, 3) provided in a friction clutch (1). Construction box according to one of Claims 1 or 2, characterized in that in the case of a single clutch plate provided in a friction clutch, hooks (26a, 26b) are arranged next to one another with a division along a tooth distance (ZW) with a number of hooks (26a, 26b) with evenly spaced chin distances provided. Construction box according to Claim 1 or 2, characterized in that a division of the hook distances of the hooks within a tooth distance (ZW) is, in the case of a number of coupling discs (2, 3) used in a friction clutch (1) greater than one, formed by the ratio of the number of the clutch discs (2, 3) used in this friction clutch (1) divided by the maximum number of clutch discs (2, 3) used in a friction clutch (1). Construction box according to one of Claims 1 to 5, characterized in that friction couplings (1) with one or two coupling discs are provided, a drive element (25a, 25a ') with two equally long hooks (26a) being provided and a shortening of a hook ( 26b) with a half tooth distance (ZW / 2) is provided for a friction clutch with a single clutch disc. Construction box according to one of Claims 1 to 6, characterized in that the disc spring (17), the ramp device (23), the pressing plate (6) and / or the back pressure plate (4) are designed as an equal part (s) independent of the number of coupling discs (2, 3). Construction box according to one of Claims 1 to 6, characterized in that the housing (15) is provided as an equal part regardless of the number of coupling plates (2, 3) and in that at least one intermediate ring (16) is arranged between the back pressure plate (4) and the housing (15). Which at least one melian ring (16) evens out an axial width of at least one further coupling disc (2, 3) and at least one median plate (8). friction coupling, manufactured by a construction company according to claim 1 in !! 8 with a single coupling disc and several arranged next to each other, with a tooth spacing (ZW) arranged in evenly spaced hooks (26a, Zöb). 1G. Friction coupling (1), produced by a construction box according to claim 1 in !! 8 with two coupling discs (2, 3), one hook (26) or two hooks (Zöa, Zöb) being of equal length.
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    同族专利:
    公开号 | 公开日
    DE102013213901A1|2015-01-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1567019A|1976-03-24|1980-05-08|Automotive Prod Co Ltd|Friction clutches|
    HU188454B|1983-05-16|1986-04-28|Csepel Autogyar,Hu|Diaphragm-spring friction clutch series|
    JPH0532665Y2|1990-03-14|1993-08-20|
    FR2764021B1|1997-05-30|1999-08-13|Valeo|FRICTION CLUTCH WITH WEAR CATCHING DEVICE EQUIPPED WITH MEANS ALLOWING ITS RESET AND TOOL SUITABLE FOR RESETTING THE DEVICE|
    WO2009056092A1|2007-10-31|2009-05-07|Luk Lamellen Und Kupplungsbau Beteiligungs Kg|Friction clutch|
    DE102009055894B4|2008-12-18|2017-07-13|Schaeffler Technologies AG & Co. KG|Self-adjusting friction clutch|
    DE102011101557B4|2010-05-25|2021-02-04|Schaeffler Technologies AG & Co. KG|Adjustment device for a friction clutch|
    DE102012213658A1|2011-08-19|2013-02-21|Schaeffler Technologies AG & Co. KG|Coupling device for vehicle, has driving ratchet whose side portion is made to contact with tooth structure of the pinion|
    DE102012220836A1|2011-12-08|2013-06-13|Schaeffler Technologies AG & Co. KG|Reverse rotation lock for friction coupling for connection of drive shaft with powertrain of motor car, has movable positioning device positioned by pinion, and lock unit locking rotational position produced by drive pawl|DE102016216583A1|2016-09-01|2018-03-01|Schaeffler Technologies AG & Co. KG|Self-adjusting friction clutch|
    法律状态:
    2016-07-12| NAV| Patent application has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    DE102013213901.2A|DE102013213901A1|2013-07-16|2013-07-16|Construction kit for friction clutches with one or more clutch discs and friction clutches made therefrom|
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