• 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 an assembly (1) comprising a first component (2) with an internal toothing (4) and a second component (3) with an external toothing (6), wherein the two components (2, 3) by an interference fit between the inner and the outer toothing (4, 6) is formed, are connectable to each other, and wherein the inner and the outer toothing (4, 6) each have a plurality of teeth (5, 7). The teeth (5) of the internal toothing (4) of the first component (2) and / or the teeth (7) of the external toothing (6) of the second component (3) have recesses (13, 15) in the course of the tooth flanks (12, 14) ) formed in portions of the tooth flanks (12) immediately adjacent to the tooth roots (16).
    公开号:AT520015A1
    申请号:T50452/2017
    申请日:2017-05-30
    公开日:2018-12-15
    发明作者:
    申请人:Miba Sinter Austria Gmbh；
    IPC主号:
    专利说明:

    Summary
    The invention relates to an assembly (1) comprising a first component (2) with an internal toothing (4) and a second component (3) with an external toothing (6), the two components (2, 3) being a press fit between the inner and outer teeth (4, 6) are formed, can be connected to one another, and wherein the inner and outer teeth (4, 6) each have a plurality of teeth (5, 7). The teeth (5) of the internal teeth (4) of the first component (2) and / or the teeth (7) of the external teeth (6) of the second component (3) have recesses (13, 15) in the course of the tooth flanks (12, 14) ) on.
    Fig. 2/19
    N2017 / 13800 AT-00
    The invention relates to an assembly comprising a first component with an internal toothing and a second component with an external toothing, the two components being connectable to one another by an interference fit, which is formed between the internal and external toothing, and wherein the internal and the External teeth each have several teeth.
    The invention also relates to a synchronous hub with a hub body in which an opening is formed which is delimited by an internal toothing with teeth.
    The invention further relates to a method for producing a spline with an interference fit between a first component having internal teeth and a second component having external teeth, the internal teeth and the external teeth each being produced with teeth.
    Splines for connecting two components to one another and in order to be able to transmit torques between the components have been known for a long time. There are various design variants, depending on whether only a positive fit is desired or whether an interference fit, i.e. a press fit, is also to be formed. In the latter case, the profiles of the gears are made with overlap. For this purpose, the teeth of the external toothing are produced with a larger cross-sectional area (viewed in the axial direction) than the tooth gaps of the internal toothing. Accordingly, correspondingly high forces have to be used to connect the two components. In addition, when the two components are connected to each other as a result of the press fit 2/19
    N2017 / 13800-AT-00 in the area of the teeth of the gears, a very high stress level is formed, which exceeds the load limit with regard to the fatigue strength of the material in many applications. The voltage level has so far hardly been able to be reduced due to the need to avoid fretting corrosion or, due to the range of tolerances in worst case, pairings of for example the largest shaft and the smallest hub.
    It is the object of the invention to create a possibility with which two components can be connected by means of splines with improved fatigue strength.
    The object of the invention is achieved in the assembly mentioned at the outset in that the teeth of the internal toothing of the first component and / or the teeth of the external toothing of the second component have recesses in the course of the tooth flanks.
    The object of the invention is further achieved with the synchronizing hub mentioned at the beginning, in which recesses are formed in the tooth flanks of the teeth.
    In addition, the object of the invention is achieved with the method mentioned at the outset, according to which it is provided that the tooth flanks of each of the teeth of the external toothing of the second component and / or each of the teeth of the internal toothing of the first component are partially covered with the other teeth of the internal toothing or the external toothing and partially with a play between the teeth of the internal toothing and the external toothing.
    The advantage here is that the tooth geometry with the recess can significantly reduce the level of tension in the teeth of the splines. The overlap for forming the press fit can thus be shifted from the critical area, as a result of which the load on the material itself can be reduced. This in turn can be used to use a cheaper material concept for the same application, since the / 19
    N2017 / 13800 AT-00
    Material no longer has to be selected according to the high stress level.
    According to an embodiment variant of the invention, it can be provided that the recesses are formed in regions of the tooth flanks adjoining the tooth bases. In a continuation of the above-mentioned embodiment variant of the assembly, this embodiment variant can also take into account the usually critical point of the tooth base, as a result of which material fatigue and consequently material breakage can be better avoided.
    In order to further improve the effects described above and thus the assembly with regard to its fatigue strength, it can be provided according to a further embodiment variant that further recesses are formed in the tooth feet and / or in the tooth heads.
    The recesses in the tooth flanks preferably extend to a tooth height selected from a range of 20% to 70% of the total tooth height, measured starting from the tooth feet. With recesses in this area in particular, it was found that a sufficient press fit for torque transmission can be ensured, but at the same time there is a very low level of stress in the connection of the two components to one another.
    To make it easier to manufacture the toothings, according to another embodiment variant of the assembly it can be provided that the recesses in the tooth flanks form a common recess together with the further recesses in the tooth bases.
    In this case in particular, but also in general, it can be provided that in the recesses the teeth of the external toothing in the tooth gaps of the internal toothing in the region of the tooth heads only rest with the transition regions of the tooth flanks on the tooth heads on the tooth flanks of the internal toothing. The connection of the two components to one another can thus be improved despite the low stress level in the toothings.
    / 19th
    N2017 / 13800 AT-00
    For a better understanding of the invention, this will be described in the following
    Figures explained in more detail.
    Each shows in a simplified, schematic representation:
    Figure 1 is an assembly in front view.
    2 shows a section of an assembly;
    Fig. 3 shows a section of an assembly according to an embodiment.
    To begin with, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, and the disclosures contained in the entire description can be applied analogously to the same parts with the same reference numerals or the same component names. The location information selected in the description, e.g. above, below, to the side, etc., referring to the figure described and illustrated immediately, and if the position is changed, these are to be applied accordingly to the new position.
    1 shows an assembly 1 in a view in the direction of the axial direction. The assembly 1 comprises a first component 2 and a second component 3. The first component 2 is connected to the second component 3 via a spline. For this purpose, the first component 2 has an internal toothing 4 with teeth 5 and the second component 3 has an external toothing 6 with teeth 7. The teeth 5 of the internal toothing 4 and the teeth 7 of the external toothing 6 can each be formed directly adjacent to one another in the circumferential direction, as can be seen from FIG. 1. However, it is also possible for the teeth 5 of the internal toothing 4 and the teeth 7 of the external toothing 6 to be spaced apart from one another in the circumferential direction. The example of the assembly 1 specifically shown in FIG. 1 therefore has only an exemplary character, at least with regard to the geometry and / or the arrangement of the teeth of the internal toothing 4 and the teeth 7 of the external toothing 6.
    / 19th
    N2017 / 13800 AT-00
    In principle, assemblies of this type, in which two components are connected to one another via splines for torque transmission, are known from the prior art. In the following description, therefore, this general aspect of module 1 is not further discussed. For this purpose, the person skilled in the art is referred to the relevant prior art.
    Component 2 shown in FIG. 1 is in particular a synchronous hub. The component 3 consequently a shaft. Although this is the preferred embodiment of the assembly 1, there is also the possibility within the scope of the invention that the components 2, 3 are designed differently as long as they are connected to one another via the splines.
    In order to connect the two components 2, 3 to one another, an interference fit is formed between the internal toothing 4 of the component 2 and the external toothing 6 of the component 3. This is achieved in that the internal toothing 4 of the component 2 has an overlap area 8 to the external toothing 6 of the component 3, as can be seen from FIG. 2, which shows a section of an embodiment variant of the assembly 1. The overlap area 8 is achieved by considering the width of the teeth 5 of the internal toothing 4 in the circumferential direction of the assembly 1 as greater than the corresponding width of the tooth gaps between the teeth 7 of the external toothing 6 in this overlap area and in the same direction and at the same radial height. However, the reverse design is also possible, that is to say that the teeth 5 of the internal toothing 4 are at least approximately the desired size and the tooth gaps between the teeth 7 of the external toothing 6 are smaller.
    It is now provided that this overlap region 8 of the teeth 5 of the internal toothing 4 with the teeth 7 of the external toothing 6 does not extend in the radial direction over an entire tooth height 9.
    The tooth height 9 is the dimension of the teeth 7 of the external toothing 6 between a tooth root circle 10 and a tooth head 11.
    The same also applies to the tooth height of the teeth 5 of the internal toothing 4.
    / 19th
    N2017 / 13800 AT-00
    In general, it should be noted that the terms "tooth root", "tooth flank", "tooth head", "tooth root circle", etc., according to their definition in DIN 3998 in the
    The filing date of the relevant application can be used.
    So that the overlap area 8 does not extend over the entire tooth height 9, it is provided that the teeth 5 of the internal toothing 4 of the first component 2 have recesses 13 in the course of tooth flanks 12. In particular, only one recess 13 is provided per tooth flank 12 of the teeth 5 of the internal toothing.
    Alternatively or additionally, it can also be provided that, in order to reduce the length of the overlap region 8, the teeth 7 of the external toothing 6 of the second component 3 have recesses 15 in the course of tooth flanks 14, as is indicated by dashed lines in FIG. 2.
    The tooth flanks 12 and / or the tooth flanks 14 can, for example, be viewed in the axial direction (corresponds to the direction on the leaf plane of FIG. 2), an approximately S-shaped course between the tooth feet 16 and the tooth tips 17 and / or between the tooth feet 18 and Have tooth tips 11. The recesses 13 and / or the recesses 15 can be trough-shaped in cross section, as can be seen from FIG. 2. So you can have a lower middle area that ends flat in the side areas.
    The recesses 13 and / or the recesses 15 preferably extend over the entire tooth width of the teeth 5 or teeth 7 in the axial direction. They therefore extend into the end faces of teeth 5 or teeth 7.
    Although the course of the tooth flanks 12 and / or the tooth flanks 14 shown in FIG. 2 is preferred, since this geometry is easier to represent in terms of sintering technology (preferably at least one of the components 2, 3 of the assembly 1 is produced by a sintering process), the recesses can 13 and / or the recesses 15 also have a different cross-sectional geometry. For example, they can be rectangular or square or triangular, etc.
    / 19th
    N2017 / 13800 AT-00
    The external toothing 6 of the component 3 is preferably designed as an involute toothing. The internal toothing of component 3 has a tooth gap shape which is not complementary to this, i.e. that the tooth gaps due to the recesses 13 each have a larger cross-sectional area than the teeth 7 of the external toothing 6. Only in the overlap area 8 of the teeth 5, 7 is a press fit, i.e. an interference fit, formed between the teeth. The coverage can be between 10 μm and 50 μm.
    The tooth flanks 12 of the teeth 7 of the external toothing 6 of the component 3 are therefore only partially in contact with the tooth flanks 14 of the teeth 5 of the internal toothing 4 of the component 2.
    However, it is possible, in particular if at least one of the two components 2, 3 is designed as a sintered component, that material is brought into the recesses 13 and / or the recesses 15 by pushing the component 3 onto the component 2.
    According to the preferred embodiment variant of the assembly 1 or the corresponding component 2 or 3, it can be provided that the recesses 13 are formed in areas of the tooth flanks 12 adjoining the tooth feet 16 of the teeth 5 of the component 2, in particular immediately adjoining areas, as shown in FIG Fig. 2 is shown. The same can be provided for the recesses 15.
    However, there is also the possibility that the recesses 13 are formed at a distance from the tooth feet 16 of the teeth 5 of the component 2 starting in the tooth flanks 12. The distance from the tooth feet 16 can be between 2% and 10% of the tooth height 9. The same can be provided for the recesses 15.
    In general, the recesses 13 in the tooth flanks 12 can extend to a height 19 of the teeth 5 which is selected from a range from 20% to 70%, in particular from a range from 30% to 50% of the total / 19
    N2017 / 13800 AT-00
    Tooth height 9, measured from the tooth feet 16 starting. The same can be said for
    Recesses 15 are provided.
    According to another embodiment variant of the assembly 1, which is shown in detail in FIG. 3, provision can be made for further recesses 20 to be formed in the tooth heads 11. The same can be provided for the tooth heads 17.
    These further recesses 20 can be formed in the transition region from the tooth flank 14 into the tooth head 11, in particular in both transition regions of a tooth 7. The overlap region 8 can be formed between the two further recesses 20. The same can be provided for the tooth heads 17.
    However, it is also possible for the further recesses to be formed in the tooth feet 16 of the internal toothing 4 of the component 2, as can be seen from FIG. 2. The same can be provided for the tooth feet 18 of the teeth 7 of the external toothing 6.
    According to another preferred variant of the assembly 1 shown in FIG. 2, it can be provided that the recesses 13 in the tooth flanks 12 together with the further recesses 20 in the tooth feet 16 each form a common recess. This common recess can, for example, have an at least approximately semicircular cross section, as can be seen from FIG. 2.
    According to another variant of the assembly 1, it can be provided that the teeth 7 of the external toothing 6 in the tooth gaps of the internal toothing 4 in the area of the tooth heads 11 in each of these common recesses only with the transition areas of the tooth flanks 14 to the tooth heads 11 on the tooth flanks 12 of the internal toothing 4, as can also be seen from FIG. 2. It can be provided that in the area of these common recesses the teeth 7 only have the edges between / 19
    N2017 / 13800-AT-00 rest the tooth flanks 14 and the tooth tips 11 on the tooth flanks 12 of the teeth 5 of the internal toothing 4.
    As already stated, component 2 in the preferred embodiment variant is a synchronous hub. This has a hub body in which an opening is formed which is delimited by the internal toothing 4 with teeth 5. This internal toothing 4 is designed in the manner described above, in particular with the recesses 13 in the tooth flanks 12.
    The invention further relates to a method for producing a spline with press fit (press fit) between the first component 2, which has the internal toothing 4 and the second component 3, which has the external toothing 6, the internal toothing 4 and the external toothing 6 each having teeth 5, 7 getting produced. The tooth flanks 14 of each of the teeth 7 of the external toothing 6 of the second component 3 and / or the tooth flanks 12 of each of the teeth 5 of the internal toothing 4 of the first component 2 are in the overlap region 8 with an overlap with the respective other teeth 5, 7 of the internal toothing 4 or the external toothing 5 and partially with a play between the teeth 5, 7 of the internal toothing 4 and the external toothing 6. This game is achieved as described above with the recesses 13 and / or the recesses 15 and / or the further recesses 20 and / or the described common recesses.
    Each tooth 5, 7 of the toothings thus has the overlap and the play.
    However, there is also the possibility that not all teeth 5, 7 are designed in this way. For example, only every second or every third or every fourth tooth 5, 7 can have the overlap and the play. It can also be provided that only four or only five or only six or only seven or only eight, etc., teeth 5, 7 have the overlap and the play.
    The invention makes particular use of a special tooth gap shape in order to reduce the stress level in the press fit. It can be the / 19
    N2017 / 13800 AT-00
    Fatigue strength of the press fit can be improved. It was found in measurements that the stress level in the toothings can be reduced by at least 10% compared to a press fit of toothings over the entire length of the tooth flanks, i.e. without the exemptions in the form of the recesses.
    The exemplary embodiments show possible design variants, it being noted at this point that combinations of the individual design variants with one another are also possible.
    For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the assembly 1, it is not necessarily shown to scale.
    / 19th
    N2017 / 13800 AT-00
    LIST OF REFERENCE NUMBERS
    module
    component
    component
    internal gearing
    tooth
    external teeth
    tooth
    Coverage area
    tooth height
    tooth root
    addendum
    tooth flank
    recess
    tooth flank
    recess
    tooth root
    addendum
    tooth root
    height
    Recess / 19
    N2017 / 13800 AT-00
    权利要求:
    Claims (8)
    [1]
    claims
    1. assembly (1) comprising a first component (2) with an internal toothing (4) and a second component (3) with an external toothing (6), the two components (2, 3) by an interference fit between the inside - And the outer toothing (4, 6) is formed, can be connected to each other, and wherein the inner and outer toothing (4, 6) each have a plurality of teeth (5, 7), characterized in that the teeth (5) of the inner toothing (4) of the first component (2) and / or the teeth (7) of the external toothing (6) of the second component (3) in the course of the tooth flanks (12, 14) have recesses (13, 15).
    [2]
    2. The assembly (1) according to claim 1, characterized in that the recesses (13, 15) are formed in areas of the tooth flanks (12) adjoining the tooth feet (16).
    [3]
    3. An assembly (1) according to claim 1 or 2, characterized in that further recesses (20) are formed in the tooth bases (16) and / or in the tooth heads (11).
    [4]
    4. Assembly (1) according to one of claims 1 to 3, characterized in that the recesses (13, 15) in the tooth flanks (12, 14) up to a height (19) of the teeth (5, 7) selected range from 20% to 70% of the total tooth height (9), measured starting from the tooth feet (16).
    [5]
    5. The assembly (1) according to claim 3 or 4, characterized in that the recesses (13) in the tooth flanks (12) together with the further recesses (20) in the tooth feet (16) each form a common recess.
    13/19
    N2017 / 13800 AT-00
    [6]
    6. Module (1) according to one of claims 1 to 5, characterized in that in the recesses, the teeth (7) of the external toothing (6) in the tooth gaps of the internal toothing (4) in the region of the tooth tips (11) each only with the Transition areas of the tooth flanks (14) rest on the tooth heads (11) on the tooth flanks (12) of the internal toothing (4).
    [7]
    7. synchronous hub with a hub body in which an opening is formed which is delimited by an internal toothing (4) with teeth (5), characterized in that recesses (13) are formed in the tooth flanks (12) of the teeth (5) ,
    [8]
    8. A method for producing a spline with a press fit between a first component (2) having an internal toothing (4) and a second component (3) having an external toothing (6), the internal toothing (4) and the external toothing (6) are each produced with teeth (5, 7), characterized in that the tooth flanks (14) of each of the teeth (7) of the external toothing (6) of the second component (3) and / or each of the teeth (5) of the internal toothing (4 ) of the first component (2) partly with an overlap to the respective other teeth (5, 7) of the internal toothing (4) or the external toothing (6) and partly with a play between the teeth (5, 7) of the internal toothing (4) and the external toothing (6) are produced.
    14/19
    N2017 / 13800 AT-00
    Miba Sinter Austria GmbH
    15/19
    Miba Sinter Austria GmbH
    16/19 Austrian
    Patent Office
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3305061A|1964-12-16|1967-02-21|Borg Warner|Axial locking clutch|
    DE4214268C1|1992-05-04|1994-01-05|Praewema Werkzeugmaschinenfabr|High torsion coupling between shaft and hub - has toothed profiles with grooved gear teeth for plastic deformation after heat shrink fit|
    GB433764A|1935-03-25|1935-08-20|Vauxhall Motors Ltd|Improvements relating to torsional spring systems for vehicles|
    US4875796A|1987-11-23|1989-10-24|Eaton Corporation|Press-fit splined connection|
    DE19513905C1|1995-04-12|1996-06-20|Gkn Automotive Ag|Connection for drive element on shaft|
    AU2003215129A1|2002-03-05|2003-09-22|Metal Forming And Coining Corporation|Process for forming an internally splined part|
    DE10316155B4|2002-05-24|2006-04-20|Sew-Eurodrive Gmbh & Co. Kg|Shaft, series of shafts and manufacturing process|
    JP2006077888A|2004-09-09|2006-03-23|Nsk Warner Kk|Clutch hub|
    JP4917754B2|2005-02-10|2012-04-18|日本発條株式会社|Disc spring|
    WO2007018485A1|2005-07-20|2007-02-15|Mack Trucks, Inc.|Dog-tooth-face interface|
    WO2008088007A1|2007-01-17|2008-07-24|Ntn Corporation|Constant velocity universal joint|
    CN101802426B|2007-09-18|2013-03-20|Ntn株式会社|Bearing device for wheel|
    JP5202041B2|2008-03-06|2013-06-05|アイシン・エーアイ株式会社|Spline combination|
    AT508260B1|2009-05-20|2010-12-15|Miba Sinter Austria Gmbh|GEAR|
    DE102010021771A1|2010-05-27|2011-12-01|Schottel Gmbh|Bevel gear of a bevel gear|
    JP5392218B2|2010-09-30|2014-01-22|アイシン・エィ・ダブリュ株式会社|Manufacturing method of multi-plate clutch and clutch hub|
    JP5549658B2|2010-11-18|2014-07-16|日本精工株式会社|Telescopic shaft manufacturing method and telescopic shaft manufactured by this manufacturing method|
    US20130272785A1|2012-04-11|2013-10-17|General Electric Company|System and method for coupling rotor components with a spline joint|
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    CN104047969B|2013-03-15|2016-06-22|上海通用汽车有限公司|The lock unit of manual transmission and manual transmission|
    US9915291B2|2013-07-30|2018-03-13|Nsk Ltd.|Torque transmission shaft having universal joint yoke and method of manufacturing the same|
    JP6086239B2|2013-08-09|2017-03-01|アイシン精機株式会社|Inner rotor for fluid pump|
    US20150323014A1|2014-05-08|2015-11-12|Steering Solutions Ip Holding Corporation|Spline press fit orientation lead in|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50452/2017A|AT520015B1|2017-05-30|2017-05-30|Assembly with a spline|ATA50452/2017A| AT520015B1|2017-05-30|2017-05-30|Assembly with a spline|
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    DE102018004031.4A| DE102018004031A1|2017-05-30|2018-05-18|Assembly with a spline|
    BR102018011120-5A| BR102018011120A2|2017-05-30|2018-05-30|FITTING GEAR MODULE|
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