• 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 method of assembling a flange (7) for fixing around an outer ring (3) of a bearing, said ring having a peripheral groove (10) formed between a front seat (11) having a first diameter and a rear bearing surface (12) having a second diameter greater than the first diameter, said flange having a bore (15) having a diameter between said first and second diameters, said method comprising the steps of: providing at least one flange (7) comprising a mounting lug (16) projecting internally from the diameter of the bore (15), and at least one assembly member (17) radially deformable between a mounting state, in which it is arranged in the diameter of the bore (15), and a mounted state, in which it defines with said lug a dimension inscribed smaller than the first diameter; arranging at least one lug (16) in the groove (10); radially deforming at least one member (17) from the mounting state to the assembled state to arrange it at least in part in the groove (10) to ensure assembly of said flange by interference between the groove (10); ), the lug (16) and the member (17).
    公开号:FR3032500A1
    申请号:FR1551130
    申请日:2015-02-11
    公开日:2016-08-12
    发明作者:Aurelien Bonnaudet；Renaud Maille
    申请人:NTN SNR Roulements SA；
    IPC主号:
    专利说明:

    [0001] The invention relates to a method for assembling a fastening flange around an outer ring of a bearing, a bearing comprising a fastening flange assembled on its outer ring by means of such a method, and mounting a shaft rotating in a housing by means of such a bearing.
    [0002] The invention applies more particularly to mounting a primary or secondary shaft in a housing of a motor vehicle gearbox. To do this, a bearing is known whose outer ring has a peripheral groove formed between a front bearing having a first diameter and a rear bearing having a second diameter which is greater than said first diameter. In addition, the flange has a bore whose diameter is between said first and second diameters.
    [0003] Thus, by relative sliding of the bore around the front seat, one can mount the flange in axial support on the rear seat with said bore radial facing of the groove. Then, the assembly can be made by axially punching the edge of the bore so as to form material beads which extend radially in the bore to be arranged in the groove to interfere with it. However, this assembly requires an axial punching force which is important and induces a deformation of the material which is difficult to control. As a result, the geometry of the beads can not be reliably defined, even though the mechanical behavior of the assembly depends directly on it. In particular, it may be desired that the assembly is performed with an axial and / or radial clearance defined between the flange and the bearing, in particular to allow the mounting of a rotating shaft in a housing of a gearbox. Document FR-2 978 513 describes a method of assembling a fastening flange around an outer ring of a bearing, said ring having a peripheral groove formed between a front bearing having a first diameter and a bearing tailpiece having a second diameter which is greater than said first diameter, said flange having a bore whose diameter is between said first and second diameters, said method comprising the steps of: - providing a flange comprising orifices whose inner edge is equipped a radially deformable bar between a mounting state in which said bars are inscribed in the diameter of the bore and a deformed state in which said bars delimit an inscribed diameter which is smaller than the first diameter; - Mount the flange around the ring by relative sliding of the bore around the front seat to put the bars, in mounting state, radial facing the groove; radially deforming the bars to arrange them at least partly in the groove in order to assemble said flange by interference between the first diameter and the inscribed diameter delimited by said bars. In particular, such a method makes it possible to control in a simple and low-constraining manner the interference between the flange and the outer ring, in order to make reliable the obtaining of the desired mechanical behavior for the assembly. The invention aims to improve the prior art by proposing an assembly method that is simpler to implement.
    [0004] For this purpose, and according to a first aspect, the invention proposes a method of assembling a fixing flange around an outer ring of a bearing, said ring having a peripheral groove formed between a front bearing having a first diameter and a rear bearing having a second diameter which is greater than said first diameter, said flange having a bore whose diameter is between said first and second diameters, said method comprising the steps of: providing a flange comprising at least one less a mounting lug which is protruding internally from the diameter of the bore, and at least one connecting member which is deformable radially between a mounting state, wherein said member is disposed in the diameter of the bore , and a mounted state, wherein said member defines with said lug a dimension inscribed which is smaller than the first diameter; - Have at least one mounting lug in the groove; radially deforming at least one assembly member from the assembled state to the assembled state to arrange it at least partly in the groove to ensure assembly of said flange by interference between the groove, the mounting lug and the assembly member. According to a second aspect, the invention provides a bearing comprising an outer ring, an inner ring and rolling bodies arranged between said rings to allow their relative rotation, said bearing further comprising a fastening flange which is assembled around the ring. externally by carrying out such a method, said ring having a peripheral groove formed between a front bearing having a first diameter and a rear bearing having a second diameter which is greater than said first diameter, said flange having a bore having a diameter is between said first and second diameters, said flange comprising at least one mounting lug which is protruding internally from the diameter of the bore, and at least one connecting member which is disposed at least partly in the groove, said member defining with said lug a dimension inscribed which is less than the first d iamètre. According to a third aspect, the invention proposes a mounting of a shaft rotating in a housing by means of such a bearing, said shaft being secured to the inner ring and the flange being fixed to the housing.
    [0005] Other objects and advantages of the invention will become apparent from the following description, with reference to the appended figures, in which: FIG. 1 is a partial representation in longitudinal section of a mounting of a shaft rotating in a housing by means of a bearing according to one embodiment of the invention; - Figure 2 shows in perspective an outer ring according to an embodiment of the invention; - Figures 3 represent in perspective a fastening flange according to a first embodiment of the invention; - Figure 4 shows in longitudinal section a bearing on the outer ring of which the flange of Figures 3 is assembled; FIG. 5 is a perspective view of a fastening flange according to a second embodiment of the invention; - Figure 6 shows in perspective cut a bearing on the outer ring of which the flange of Figures 5 is assembled.
    [0006] With reference to FIG. 1, the mounting of a primary or secondary shaft 1 in a casing 2 of a motor vehicle gearbox is described, said assembly being carried out by means of a bearing comprising an outer ring 3, an inner ring 4 and rolling bodies 5 disposed between said rings to allow their relative rotation.
    [0007] In the embodiment shown, the inner ring 4 is rotatable by being secured around the shaft 1 by fitting into a housing 6 of said shaft provided for this purpose, the outer ring 3 is fixed and the rolling bodies 5 are under the ball shape.
    [0008] The outer ring 3 is equipped with a fastening flange 7 which allows the rotation of the shaft 1 to be mounted in the casing 2. To this end, the flange 7 is assembled around the outer ring 3, said flange being equipped. means for fixing it to the casing 2, for example in the form of an orifice 8 cooperating with a screw 9 of the casing 2. In relation to FIG. 2, the outer ring 3 has a peripheral groove 10 formed between a front bearing surface 11 having a first diameter and a rear bearing surface 12 having a second diameter which is greater than said first diameter. In particular, the bearing surfaces 11, 12 have an annular outer surface delimiting their respective diameters, the front bearing surface 11 extends to the front edge and the rear bearing surface 12 extends to the rear edge of the outer ring 3. Furthermore, the axial dimension of the rear bearing surface 12 is greater than that of the front bearing surface 11 so as to arrange the groove 10 laterally towards the front of the outer race 3. In addition, the rear bearing surface 12 is fitted into a casing housing 2 when mounting the rotating shaft 1 in said casing. The groove 10 has a U-shaped or V-shaped section, each edge 13, 14 extending radially to connect the bottom of the groove 10 with the front bearing surface 11 and the rear bearing surface 12 respectively. Thus, the radial dimension of the edge 13 the front span 11 is smaller than the edge 14 of the rear span 12, the groove 10 having a bottom diameter which is smaller than the first diameter and an axial dimension delimited between the edges 13, 14.
    [0009] With reference to FIGS. 3 and 5, the flange 7 has a ring of material delimiting a bore 15 whose diameter is between the first and second diameters. The thickness of the crown is substantially equal to the sum of the axial dimensions of the front span 11 and the groove 10.
    [0010] The flange 7 comprises at least one mounting lug 16 which is internally protruding from the diameter of the bore 15, as well as at least one connecting member 17 which is radially deformable between a mounting state, wherein said member is disposed in the diameter of the bore 15, and a mounted state, wherein said member defines with said lug a registered dimension which is smaller than the first diameter. In particular, the bore 15 has two perimeter portions arranged opposite, the mounting lug 16 and the connecting member 17 being provided on 3032500 6 respectively one of said perimeter portions. In the embodiments shown, the bore 15 is annular and the portions each extend over 180 °. Alternatively, for example in relation to a slotted flange 7, the bore 15 may be open extending over less than 360 °.
    [0011] Advantageously relative to the simplicity of the assembly, the bore 15 has a member 17 and a lug 16 which are diametrically opposed. In variant not shown, two members 17 and / or two pins 16 may be provided, for example by being equidistant along said bore.
    [0012] A method of assembling the fixing flange 7 around the outer ring 3 in which at least one mounting lug 16 is disposed in the groove 10 is described below. In particular, the mounting lug 16 is fixed. , in particular being integral with the flange 7 so as to be dimensionally stable, and has a radial dimension protruding from the diameter of the bore 15. The mounting pin 16 can be arranged in the groove 10 by relative inclination of the 15 bore relative to the front seat 11, to allow said lug, especially when it has a large radial dimension, to pass axially beyond said front reach.
    [0013] Next, the assembly method provides for radially deforming at least one assembly member 17 from the assembled state to the assembled state, for arranging it at least partly in the groove 10, in order to ensure the assembly of the flange 7 by interference between the groove 10, the mounting lug 16 and the assembly member 17. Thus, the assembly being formed by deformation of the member 17, the force to be applied to the flange 7 remains limited in order to be able to control well the assembly interference between said flange and the outer ring 3. In relation to FIGS. 3 and 4, the assembly member 17 comprises an insert 30 made of elastically deformable material which is reported and fixed, in particular by overmolding, in a cavity 19 formed on the bore 15 of the flange 7. In a variant, the assembly member 17 may be attached to the flange 7, in particular 3032500 7 by clipping into the cavity 19, for example being in the form of a plastic part or of metallic shade or of spring form. In particular, the assembly member 17 has a rest-mounted state in which it delimits with the mounting pin 16 an inscribed dimension which is smaller than the first diameter. Moreover, when it is disposed in the groove 10, the assembly member 17 is elastically constrained in the mounting state by pressing on the front bearing surface 11, so as to be disposed in the diameter of the bore 15 which is greater than the first diameter, and thus to pass axially beyond said front reach. Thus, at the end of its support on the front seat, the assembly member 17 is, by elastic return, deformed radially towards its rest state, so as to be arranged at least partly in the groove 10 and assuring the assembly of the flange 7 by interference with said groove, the mounting lug 16 and said member. In connection with FIGS. 5 and 6, the flange 7 comprises a cavity 19 in which an orifice 20 is made, the assembly member 17 comprising a bar 21 which is formed on the inner edge of said orifice, in particular having come of material with the flange 7. In this embodiment, the bar 21 is initially formed in mounting state, in particular before the assembly of the flange 7 on the outer ring 3.
    [0014] Thus, during the assembly of the flange 7 on the outer ring 3, the bar 21 is disposed in the groove 10 directly in mounting state, then deformed radially to the mounted state, to ensure said assembly by interference with said groove, the mounting pin 16 and said bar.
    [0015] The radial deformation of the bar 21 can be achieved by placing the finger of a tool in the orifice 20, then axial or radial displacement or combination of the two, said finger in said orifice, said finger having at least one face 3032500 8 of radial support on the bar 21 which is arranged to push said bar inside the bore 15 during said movement. Advantageously, the bar 21 has a boss 22 which extends into the orifice 20, the finger resting on said boss to radially deform said bar. The finger may in particular have a radial dimension which is increasing as a function of the displacement stroke of said finger in the orifice 20. Thus, by controlling the stroke of movement of the finger, it is easy to determine the deformation induced for the bar 21 and therefore the assembly interference between the flange 7 and the outer ring 3. Advantageously, the flange 7 is assembled with a radial clearance by providing that the member 17 in mounted state delimits with the pin 16 a diameter inscribed which is greater than the bottom diameter of the groove 10. In particular, the bar 21 may be deformed radially so that the inscribed diameter it delimits is greater than the bottom diameter of the groove 10. A radial clearance of the order 0.25 mm may be required to mount the shaft 1 - bearing assembly in the housing 2 for the attachment of the flange 7. Similarly, the flange 7 is assembled with axial play by providing that the groove 10 pr It has an axial dimension greater than that of the member 17 and the lug 16. In relation to FIGS. 5, 6, the orifice 20 is made in a rear cavity 25 of the flange 7 which makes it possible to locally reduce the pressure. the thickness of said flange at the level of the bar 21. In FIGS. 5, 6, the bar 21 forms a material bridge 21a associated on both sides with the flange 7, said bridge of material internally delimiting the inner edge 30 the orifice 20 and externally the bore 15, the deformation comprising the pushing of a central portion of said bridge inside the bore 15 (Figure 6).
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. A method of assembling a flange (7) for fixing around an outer ring (3) of a bearing, said ring having a peripheral groove (10) formed between a front bearing surface (11) having a first diameter and a rear bearing (12) having a second diameter which is greater than said first diameter, said flange having a bore (15) whose diameter is between said first and second diameters, said method being characterized in that it comprises the following steps: - Provide a flange (7) comprising at least one lug (16) mounting which is projecting internally of the diameter of the bore (15), and at least one assembly member (17) which is deformable radially between a mounting state, wherein said member is disposed in the diameter of the bore (15), and a mounted state, wherein said member defines with said lug a registered dimension which is smaller than the first diameter; - Have at least one lug (16) mounting in the groove (10); radially deforming at least one assembly member (17) from the mounting state to the assembled state to arrange it at least partly in the groove (10) to ensure the assembly of said flange by interference between the groove (10), the mounting lug (16) and the connecting member (17).
    [0002]
    2. Assembly method according to claim 1, characterized in that the lug (16) for mounting is disposed in the groove (10) by relative inclination of the bore (15) relative to the front span (11) .
    [0003]
    3. A method of assembly according to claim 1 or 2, characterized in that the bore (15) has two perimeter portions which are disposed opposite, the lug (16) mounting and the member (17) d assembly being provided on respectively one of said perimeter portions.
    [0004]
    4. A method of assembly according to any one of claims 1 to 3, characterized in that the member (17) of assembly is made of an elastically deformable material, said assembly member being elastically constrained to 3032500. mounting state by pressing on the front seat (11) when it is disposed in the groove (10), then deformed radially towards the state mounted by elastic return at the end of said support. 5
    [0005]
    5. Assembly method according to any one of claims 1 to 3, characterized in that the assembly member (17) comprises a bar (21) which is formed on the inner edge of an orifice (20). the flange (7), said bar being disposed in the groove (10) in the mounting state, and then radially deformed to the mounted state. 10
    [0006]
    6. A method of assembly according to claim 5, characterized in that the radial deformation of the bar (21) is achieved by placing the finger of a tool in the orifice (20), and then moving said finger in said orifice, said finger having at least one radial bearing face on the bar (21) which is arranged to push said bar inside the bore (15) during said movement.
    [0007]
    7. A method of assembly according to claim 6, characterized in that the bar (21) has at least one boss (22) extending in the orifice (20), the finger bearing on said boss to deform radially. said bar. 20
    [0008]
    8. A method of assembly according to any one of claims 5 to 7, characterized in that the bar (21) forms a material bridge (21a) associated on both sides to the flange (7), said bridge of material delimiting internally the inner edge of the orifice (20) and externally the bore (15), the deformation 25 comprising the repoussage of a central portion of said bridge within the bore (15).
    [0009]
    9. The assembly method as claimed in claim 1, wherein the groove has an axial dimension which is greater than the axial dimension of 16) to assemble the flange (7) with axial play. 3032500 11
    [0010]
    10. Assembly method according to any one of claims 1 to 9, characterized in that the groove (10) has a bottom diameter, the member (17) in mounted state delimiting with the lug (16) a inscribed diameter which is greater than said bottom diameter in order to assemble the flange (7) with a radial clearance. 5
    [0011]
    Bearing comprising an outer ring (3), an inner ring (4) and rolling bodies (5) disposed between said rings to allow their relative rotation, said bearing further comprising a fastening flange (7) which is assembled around of the outer ring (3) by carrying out a method according to any one of claims 1 to 10, said ring having a peripheral groove (10) formed between a front bearing (11) having a first diameter and a rear bearing (12) having a second diameter which is greater than said first diameter, said flange having a bore (15) having a diameter between said first and second diameters, said flange comprising at least one mounting lug (16) which is protruding internally from the diameter of the bore (15), as well as at least one assembly member (17) which is arranged at least partly in the groove (10), said member delimiting with said ergo t a registered dimension that is smaller than the first diameter. 20
    [0012]
    12. Bearing according to claim 11, characterized in that the bore (15) of the flange (7) comprises a cavity (19) in which is formed the member (17) assembly.
    [0013]
    13. Bearing according to claim 12, characterized in that the assembly member (17) comprises an insert (18) of elastically deformable material which is fixed in the cavity (19).
    [0014]
    14. Bearing according to claim 12, characterized in that the cavity (19) has an orifice (20) on the inner edge of which an assembly strip (21) is formed. 3032500 12
    [0015]
    15. Mounting a rotating shaft (1) in a housing (2) by means of a bearing according to any one of claims 11 to 14, said shaft being secured to the inner ring (4) and the flange (7). ) being attached to the housing (2).
    类似技术:
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    同族专利:
    公开号 | 公开日
    CN105864300B|2020-03-06|
    EP3056750A1|2016-08-17|
    FR3032500B1|2017-03-24|
    CN105864300A|2016-08-17|
    EP3056750B1|2018-11-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE10329433A1|2003-07-01|2005-01-20|Ab Skf|Bearing arrangement with bearing carrier and at least one bearer has bearing that can be displaced transversely to its axial direction relative to bearing carrier|
    DE102010061914A1|2010-11-25|2012-05-31|Aktiebolaget Skf|Concept for centering a bearing ring in a holding element|
    JP2013137071A|2011-12-28|2013-07-11|Nsk Ltd|Bearing unit with retainer plate|
    DE202014105640U1|2013-11-22|2014-12-05|Nsk Ltd.|bearing device|
    FR2978513B1|2011-07-28|2013-08-30|Ntn Snr Roulements|METHOD OF ASSEMBLING A FASTENING FLANGE AROUND AN OUTER RING OF A BEARING|DE102016216805A1|2016-09-06|2018-03-08|Aktiebolaget Skf|Unit with a one-piece holding element and a bearing unit, holding element and method|
    DE102018119256A1|2017-09-05|2019-03-07|Schaeffler Technologies AG & Co. KG|storage unit|
    DE102020200536A1|2020-01-17|2021-07-22|Zf Friedrichshafen Ag|Bearing arrangement for a machine element|
    DE102020200528A1|2020-01-17|2021-07-22|Zf Friedrichshafen Ag|Bearing arrangement for a machine element|
    法律状态:
    2016-02-18| PLFP| Fee payment|Year of fee payment: 2 |
    2016-08-12| PLSC| Publication of the preliminary search report|Effective date: 20160812 |
    2017-02-17| PLFP| Fee payment|Year of fee payment: 3 |
    2018-02-23| PLFP| Fee payment|Year of fee payment: 4 |
    2020-02-19| PLFP| Fee payment|Year of fee payment: 6 |
    2021-02-24| PLFP| Fee payment|Year of fee payment: 7 |
    2022-02-16| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1551130A|FR3032500B1|2015-02-11|2015-02-11|METHOD OF ASSEMBLING A FASTENING FLANGE AROUND AN OUTER RING OF A BEARING|FR1551130A| FR3032500B1|2015-02-11|2015-02-11|METHOD OF ASSEMBLING A FASTENING FLANGE AROUND AN OUTER RING OF A BEARING|
    EP16153664.4A| EP3056750B1|2015-02-11|2016-02-01|Method for assembling a clamp around an outer ring of a bearing|
    CN201610191913.5A| CN105864300B|2015-02-11|2016-02-06|Method for assembling a clamp around an outer ring of a bearing|
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