• 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:
    A wagon adapter (14) for radially connecting a wagon body (40) to a bearing (16) is disclosed, including an adapter body (40). The car adapter (14) includes two channel members (42, 44) each having a pair of opposing ears (42b, 42c) and a side guide surface (42a) perpendicular to said opposing ears (42b, 42c) of so as to form lateral channels provided to cooperate with the wagon body. Said side channel members (42, 44) are mounted in transverse grooves (58) provided on transverse surfaces (54, 56) of the adapter body (40). Reference: figure 1.
    公开号:FR3081809A1
    申请号:FR1905284
    申请日:2019-05-20
    公开日:2019-12-06
    发明作者:Gautier Jenart；Ludovic Fenayon；Thierry Le Moigne
    申请人:SKF AB；
    IPC主号:
    专利说明:

    Description
    Title of the invention: WAGON ADAPTER FOR CONNECTING A WAGON BODY TO A BEARING Technical field of the invention The present invention relates to the field of bearing adapters for a wagon.
    STATE OF THE PRIOR ART A wagon generally comprises a bogie frame provided with a pair of lateral frames on each side, having jaws opening downwards. A bearing adapter can be moved vertically inside the jaws and rests on a bearing mounted on a wagon axle carrying a wheel of said wagon. The bearing adapter thus constitutes a rigid connection between the bogie frame of the wagon and the bearing. Typically, a bearing for a wagon axle fits around a journal at the end of the wagon axle, where it is mounted between a support ring assembly and a ferrule.
    However, the wagon adapter can move relative to the bearing. The wagon adapter may be misaligned relative to the landing when the wagon is passing on turning lanes. This results in unexpected wear of certain parts, in particular the ears of lateral channels engaging with one ear of a jaw of the bogie frame, which reduces their useful life.
    The load applied by the bogie frame through the adapter may not be well distributed over the bearing, in particular on the rolling elements when the bearing is of the rolling bearing type. This results in wear on the inside and outside surfaces of the wagon adapter as well as bearing failure.
    In addition, it is desirable to have a wagon adapter which is easy to manufacture and which has reduced costs, and advantageously which can be adapted to a bogie frame having dimensions of different designs.
    These and other problems are solved by embodiments of the present invention.
    Summary of the invention [0007] To this end, the invention relates to a wagon adapter intended to radially connect a wagon body to a bearing. The wagon adapter comprises two front flanges which project inwardly from the internal surface, and which delimit with the internal surface a housing for said bearing. The wagon adapter includes an inner surface acting as a bearing seat for said bearing. The wagon adapter includes an outer surface which is adapted to be in direct radial contact with the wagon body.
    According to the invention, the wagon adapter comprises a wagon body having two lateral surfaces, at least one lateral surface being provided with a transverse groove. The wagon adapter further comprises at least one channel element provided with a pair of opposite ears and a lateral guide surface perpendicular to said opposite ears so as to define a lateral channel intended to cooperate with the wagon body , said channel member being mounted inside said transverse groove of the adapter body. The transverse length of the transverse groove is strictly greater than the transverse length of the corresponding channel element.
    Such a car adapter with separate channel elements is easy to mount. The adapter body of the wagon adapter can be standardized, the channel elements being adaptable according to the application characteristics. In addition, the channel element can slide in the transverse groove and then compensate for any relative misalignment between the wagon body and the bearing.
    According to other aspects of the invention which are advantageous but not compulsory, such a wagon adapter may include one or more of the following characteristics: The internal surface has for example a concave shape of constant radius so to rest on the landing.
    The lateral guide surfaces of the channel elements, in cross section through a plane perpendicular to the axis of rotation of the bearing, are curved.
    The lateral guide surfaces of the lateral channels are cylindrical.
    The lateral guide surfaces of the lateral channels are spherical.
    The transverse grooves each comprise a lower surface which, in cross section through a plane perpendicular to the axis of rotation of the bearing, is curved.
    The lower surfaces are cylindrical.
    The lower surfaces are spherical.
    The internal surfaces of the opposite ears of channel elements, in cross section through a plane perpendicular to the axis of rotation of the bearing, are curved.
    The internal surfaces of the ears are cylindrical.
    The internal surfaces of the ears are spherical.
    The adapter body is made of metal, for example by casting. For example, the adapter body is made of cast steel or cast iron.
    According to another aspect, the invention relates to a wagon adapter assembly comprising a wagon adapter according to any one of the preceding embodiments, a bearing mounted inside the wagon adapter, a ring support intended to come into axial contact with the bearing at a first side and a set of end pieces provided to come into axial contact with the bearing at another side, opposite the first side.
    According to one embodiment, the bearing comprises at least one internal ring and at least one external ring mounted in radial contact with the internal surface of the wagon adapter.
    According to one embodiment, the bearing comprises at least one row of rolling elements arranged between raceways provided on the inner and outer rings.
    According to one embodiment, the internal ring of the bearing is manufactured in two parts separated axially by an axial spacer.
    In another aspect, the invention relates to a wagon axle comprising a wagon adapter assembly according to any one of the preceding embodiments, a shaft being rotatably mounted about an axis of rotation relative to a wagon adapter inside said bearing. The shaft includes a first end mounted radially inside the support ring and a second end opposite the first end and fixed to the end piece assembly. BRIEF DESCRIPTION OF THE FIGURES Other advantages and characteristics of the invention will appear on examining the detailed description of nonlimiting embodiments and the attached drawings in which:
    [Fig. 1] is a perspective view of a wagon axle according to the invention;
    [Fig.2] is an axial cross section of the wagon axle of Figure 1;
    [Fig.3] is an exploded perspective view of a wagon adapter for a wagon axle of Figure 1.
    Detailed description of the invention If we refer to Figures 1 and 2, a wagon axle 10 is provided to connect the bogie frame of a wagon to the wheels (not shown). The wagon axle 10 comprises a shaft 12 (in dotted lines in FIG. 2), mounted for rotation about an axis of rotation X10 relative to a wagon adapter 14. The wagon adapter 14 is fixed to the frame of wagon bogie, the shaft 12 being fixed to the bogie.
    A bearing 16 is provided radially between the wagon adapter 14 and the shaft 12. As illustrated in Figure 2, the bearing 16 is of the rolling bearing type and comprises an internal ring 18 mounted on the shaft 12 , an outer ring 20 mounted inside the wagon adapter 14 and two rows of rolling elements 22a, 22b, for example rollers, arranged between raceways provided on the inner and outer rings 18, 20 The internal ring 18 is for example made in two parts axially separated by an axial spacer 24. In this embodiment, the bearing 16 is a tapered roller bearing.
    The bearing 16 is further provided with sealing means 26, 28 at the two axial ends. The sealing means 26, 28 close a radial space defined between the inner ring 18 and the outer ring 20. The rolling elements 22a, 22b are arranged in said sealed radial space.
    The wagon adapter 14 is fixed to the outer ring 20 by its radially inner side or its side towards the bearing seat 30 and is mounted inside the bogie frame by its radially outer side or its side towards the frame seat 32.
    The shaft 12 includes a pin 12a and a dust cover having a cylindrical surface 12b whose diameter is greater than the diameter of the pin 12a. A concave leave 12c connects the cylindrical surface 12b to the pin 12a. The inner ring 18 of the bearing is mounted on the pin 12a.
    As illustrated, the wagon axle 10 further comprises a support ring 34 having an internal surface 34a intended to come into contact radially with the external surface of the shaft 12, at the level of the side of the leave 12c and for come into axial contact with the inner ring 18 of the bearing 16. Consequently, the inner surface 34a of the support ring 34 has a rounded shape, almost complementary to that of the fillet 12c.
    The wagon axle 10 also includes a tip assembly 38. The tip assembly 38 includes the tip 38a intended to constitute a stop element in the case of a translation to the left (relative in FIG. 2) of the shaft 12 with respect to the internal ring 18. Consequently, the end piece 38a is reliably fixed to the pin 12 by means of three end screws 38b and comes into axial contact with the ring internal 18 of bearing 16.
    As illustrated in detail in FIG. 3, the wagon adapter 14 comprises an adapter body 40.
    The body 40 of the wagon adapter 14 comprises two front surfaces 46, 48, two lateral surfaces 54, 56, the internal surface 30 acting as a bearing seat in radial contact with the outer ring 20 of the bearing 16 , and the external surface 32 acting as a frame seat in radial contact with the bogie frame.
    The internal surface 30 has a concave shape of constant radius so as to rest on the external cylindrical surface of the external ring 20 of the bearing 16.
    The front surfaces 46, 48 are respectively provided with a first and a second front flange 50, 52 oriented radially inwards. The flanges 50, 52 project radially inwards relative to the internal surface 30. The flanges 50, 52 are axially opposite one another. The flanges 50, 52 define with the internal surface 30 a housing for the outer ring 20 of the bearing 16. The outer ring 20 is disposed axially between said flanges 50, 52.
    According to the invention, the two opposite lateral surfaces 54, 56 are each provided with a transverse groove 58. Only the transverse groove 58 of the lateral surface 54 will be described in more detail, the transverse groove of the opposite lateral surface 56 being identical. The transverse groove 58 extends transversely between the opposite front surfaces 46, 48. The transverse groove 58 is delimited by a pair of opposite lateral walls 58b, 58c and a lower surface 58a perpendicular to said walls.
    The wagon adapter 14 is provided with a pair of channel elements 42, 44 mounted on the adapter body 40. The first channel element 42 is mounted in the transverse groove 58 provided on the lateral surface 54 of the adapter body 40. The second channel element 44 is mounted in the transverse groove provided on the opposite side surface 56 of the adapter body 40. Only the first channel element 42 will be described in more detail, the second channel element 44 being identical.
    The first channel element 42 is delimited axially by a pair of opposite ears 42b, 42c and a lateral guide surface 42a perpendicular to said ears. Channel member 42 forms a side channel having a U-shape and being adapted to engage an ear of a jaw (not shown) of the bogie frame, so as to act as an insertion guide between the adapter and the bogie frame.
    Advantageously, the transverse length of the transverse groove 58 is strictly greater than the transverse length of the corresponding channel element 42. The channel element 42 can then slide in the transverse groove 58, in particular in the case of '' a relative misalignment between the bogie frame and the adapter. The position of the channel element 42 in the adapter body 40 is displaced relative to the relative position between the bogie frame and the bearing 16.
    Advantageously, the lower surfaces 58a of the transverse grooves 58 are curved, in cross section through a plane perpendicular to the axis of rotation X10 of the bearing 16. In the illustrated embodiment, the lateral guide surfaces 42a of the elements channel 42, 44 are flat. Said lower surfaces 58a are cylindrical. Alternatively, the lower surfaces may be spherical.
    The bogie frame includes jaw ears engaged with the lateral channels 42 of the wagon adapter 14, and in abutment against the flat lateral guide surfaces 42a. In the case of a relative misalignment between the bogie frame and the bearing 16, the channel elements 42, 44 can slide in the corresponding grooves 58, and pivot on the curved lower surfaces 58a of said grooves 58. Said defect alignment is thus compensated. The adapter body 40 cannot move relative to the bearing 16. The load applied by the bogie frame via the adapter is distributed uniformly over the bearing, in particular on the rolling elements when the bearing is of the roller bearing type. Such an arrangement improves the useful life of the wagon adapter and the bearing by reducing wear.
    Alternatively (not shown), the lower surfaces 58a of the grooves 58 are flat, and the lateral guide surfaces 42a of the channel elements 42, 44 are curved.
    Advantageously, the internal surfaces of the opposite ears 42b, 42c of the channel elements 42, in cross section through a plane perpendicular to the axis of rotation X10 of the bearing 16, are curved and form pivoting means. For example, said surfaces can be cylindrical or spherical.
    The adapter body 40 is made of metal by any suitable process, for example by casting. For example, the body 40 is made of steel or cast iron.
    The channel elements 42, 44 are made of metal by any suitable process, for example by casting. For example, the elements 42, 44 are made of steel or cast iron. Alternatively, the elements 42, 44 are made of plastic or of polymer material.
    It should be noted that the embodiments illustrated and described have been provided solely by way of indicative and non-limiting examples and that modifications, combinations and variants are possible within the scope of the invention.
    The invention has been illustrated on the basis of a rolling bearing provided with at least one row of rolling elements arranged radially between the inner and outer rings. Alternatively, the bearing can be a plain bearing or a sliding bearing comprising one or two rings.
    权利要求:
    Claims (1)
    [1" id="c-fr-0001]
    claims [Claim 1] Wagon adapter (14) for radially connecting a wagon body to a bearing (16), and comprising: an internal surface (30) acting as a bearing seat for said bearing (16), two front flanges (50; 52) which project inwards relative to the internal surface (30), and which delimit with the internal surface (30) a housing for said bearing (16), an external surface (32) which is adapted to be in direct radial contact with the wagon body,the wagon adapter (14) comprising a wagon body (40) having two lateral surfaces (54, 56), at least one lateral surface being provided with a transverse groove (58),the wagon adapter (14) further comprising at least one channel element (42, 44) provided with a pair of opposite ears (42b, 42c) and a lateral guide surface (42a) perpendicular to said ears opposite (42b, 42c) so as to define a lateral channel intended to cooperate with the wagon body, said channel element (42, 44) being mounted inside said transverse groove (58) of the adapter body ( 40), and the transverse length of the transverse groove (58) being strictly greater than the transverse length of the corresponding channel element (42, 44). [Claim 2] Wagon adapter according to claim 1, in which the lateral guide surfaces (42a) of the channel elements (42, 44), in cross section through a plane perpendicular to the axis of rotation of the bearing (16), are curved . [Claim 3] A wagon adapter according to claim 1 or 2, wherein the transverse grooves (58) each include a bottom surface which, in cross section through a plane perpendicular to the axis of rotation of the bearing (16), is curved. [Claim 4] A wagon adapter according to any one of the preceding claims, wherein the inner surfaces of the opposed ears (42b, 42c) of the channel elements (42, 44), in cross section through a plane perpendicular to the axis of rotation of the bearing (16), are curved. [Claim 5] 5. Wagon adapter assembly comprising a wagon adapter (14) according to any one of the preceding claims, a bearing
    [Claim 6] (16) mounted inside the wagon adapter (14), a support ring (34) intended to come into axial contact with the bearing (16) at a first side, and a tip assembly (38) intended to come into axial contact with the bearing (16) at another side opposite the first side.
    Wagon axle (10), comprising a wagon adapter assembly according to claim 5, and a shaft (12) rotatably mounted about an axis of rotation relative to a wagon adapter (14), inside said bearing (16), the shaft (12) comprising a first end (12c) mounted radially inside the support ring (34) and a second end (12a) opposite the first end (12c), fixed to the tip assembly (38).
    类似技术:
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    同族专利:
    公开号 | 公开日
    AU2019201846A1|2019-12-19|
    DE102019207633A1|2019-12-05|
    US20190367052A1|2019-12-05|
    CN110550058A|2019-12-10|
    US10960903B2|2021-03-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20060117985A1|2004-12-03|2006-06-08|Forbes James W|Rail road car truck and bolster therefor|
    WO2017079076A1|2015-11-05|2017-05-11|Standard Car Truck Company|Railroad car roller bearing adapter assembly|
    EP3168105A1|2015-11-13|2017-05-17|Aktiebolaget SKF|Railcar adapter for connecting a railcar body to a bearing|
    US3272573A|1963-07-05|1966-09-13|Smith Edward Payson|Journal box construction for railway cars|
    IT206286Z2|1985-12-10|1987-07-20|Riv Officine Di Villar Perosa|PERFECTLY SEALED COMPLEX PARTICULARLY FOR RAILWAY AXLE BEARINGS|
    US5237933A|1991-07-25|1993-08-24|Lord Corporation|Service-life, low-profile, retrofittable, elastomeric mounting for three-piece, railroad-car trucks|
    US5799582A|1996-12-19|1998-09-01|Pennsy Corporation|Bearing adapter and adapter pad for railway trucks|
    US5794538A|1997-04-01|1998-08-18|Amsted Industries Incorporated|Railcar truck bearing adapter construction|
    PL2272732T3|2003-07-08|2018-01-31|Nat Steel Car Ltd|Relieved bearing adapter|
    US20060137565A1|2004-12-23|2006-06-29|National Steel Car Limited|Rail road car truck and bearing adapter fitting therefor|
    US7966946B1|2010-10-21|2011-06-28|Amsted Rail Company, Inc.|Railway truck pedestal bearing adapter|
    US8893626B2|2012-08-31|2014-11-25|Strato, Inc.|Wheelset to side frame interconnection for a railway car truck|
    US20140318412A1|2013-04-29|2014-10-30|Standard Car Truck Company|Railroad car bearing adapter pad|
    US9669846B2|2013-12-30|2017-06-06|Nevis Industries Llc|Railcar truck roller bearing adapter pad systems|
    GB2535161A|2015-02-09|2016-08-17|Skf Ab|Power generator assembly for rotating applications|
    EP3326883B1|2015-11-13|2019-09-18|Aktiebolaget SKF|Railcar adapter for connecting a railcar body to a bearing|
    EP3168107B1|2015-11-13|2018-08-29|Aktiebolaget SKF|Railcar adapter for connecting a railcar body to a bearing|
    DE102017119250B3|2017-08-23|2018-08-02|Schaeffler Technologies AG & Co. KG|Cover system for wheelset shafts of rail vehicles|
    US11052928B2|2018-05-31|2021-07-06|Aktiebolaget Skf|Railcar adapter for connecting a railcar body to a bearing|
    US10960904B2|2018-05-31|2021-03-30|Aktiebolaget Skf|Railcar adapter for connecting a railcar body to a bearing|
    US10974740B2|2018-05-31|2021-04-13|Aktiebolaget Skf|Railcar adapter for connecting a railcar body to a bearing|
    US10974742B2|2018-05-31|2021-04-13|Aktiebolaget Skf|Railcar adapter for connecting a railcar body to a bearing|
    US10960903B2|2018-05-31|2021-03-30|Aktiebolaget Skf|Railcar adapter for connecting a railcar body to a bearing|US10974742B2|2018-05-31|2021-04-13|Aktiebolaget Skf|Railcar adapter for connecting a railcar body to a bearing|
    US10960903B2|2018-05-31|2021-03-30|Aktiebolaget Skf|Railcar adapter for connecting a railcar body to a bearing|
    US10960904B2|2018-05-31|2021-03-30|Aktiebolaget Skf|Railcar adapter for connecting a railcar body to a bearing|
    US11052928B2|2018-05-31|2021-07-06|Aktiebolaget Skf|Railcar adapter for connecting a railcar body to a bearing|
    US10974740B2|2018-05-31|2021-04-13|Aktiebolaget Skf|Railcar adapter for connecting a railcar body to a bearing|
    法律状态:
    2020-05-28| PLFP| Fee payment|Year of fee payment: 2 |
    2021-05-26| PLFP| Fee payment|Year of fee payment: 3 |
    2021-12-31| PLSC| Publication of the preliminary search report|Effective date: 20211231 |
    优先权:
    申请号 | 申请日 | 专利标题
    US15/994,223|US10960903B2|2018-05-31|2018-05-31|Railcar adapter for connecting a railcar body to a bearing|
    US15/994,223|2018-05-31|
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