Device for rotatably coupling two coaxial connecting elements
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16C-019/14
F16C-019/54
F16C-019/38
F16C-019/16
F16C-041/00
F16C-033/58
F16C-019/18
출원번호
US-0998344
(2009-10-09)
등록번호
US-9347485
(2016-05-24)
우선권정보
DE-10 2008 050 620 (2008-10-09)
국제출원번호
PCT/EP2009/007249
(2009-10-09)
§371/§102 date
20110627
(20110627)
국제공개번호
WO2010/040539
(2010-04-15)
발명자
/ 주소
Frank, Hubertus
출원인 / 주소
IMO Holding GmbH
대리인 / 주소
Pandiscio & Pandiscio
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
The invention is directed to a device for rotatably coupling two coaxial connecting elements, at least one of which is configured as a circular ring, and each of which has at least one annular surface that faces the corresponding surface of the respective other connecting element but is spaced apart
The invention is directed to a device for rotatably coupling two coaxial connecting elements, at least one of which is configured as a circular ring, and each of which has at least one annular surface that faces the corresponding surface of the respective other connecting element but is spaced apart therefrom by a gap, such that they are rotatable in opposite directions about an imaginary axis (axis of rotation) at the center of the annular connecting element and approximately perpendicular to the ring plane, wherein disposed in the gap between the two connecting elements is a rotary joint, configured as a single- or multi-row rolling bearing, for absorbing axial and radial loads and tilting moments, wherein at least one annular connecting element comprises, on its surface facing the gap, a continuously circumferential, planar shoulder having an oblong or elongated cross section and extending away from the gap to a freely terminating, peripheral circumferential edge.
대표청구항▼
1. A rolling bearing device (1; 1; 1) for rotatably coupling two coaxial annular connecting elements (2, 3), at least one of which is configured as a circular ring, and each of which has at least one annular surface that faces a corresponding surface of the other connecting element (2, 3), but is sp
1. A rolling bearing device (1; 1; 1) for rotatably coupling two coaxial annular connecting elements (2, 3), at least one of which is configured as a circular ring, and each of which has at least one annular surface that faces a corresponding surface of the other connecting element (2, 3), but is spaced apart therefrom by a gap (4), such that the connecting elements are rotatable in opposite directions about an axis of rotation at the centers of the two annular connecting elements (2, 3) and generally perpendicular to a ring plane, wherein disposed in the gap (4) between said two connecting elements (2, 3) is a rotary joint, comprising a single or multi-row rolling bearing, for absorbing axial and radial loads and tilting moments, and wherein provided in at least one end face (6, 7, 21, 23) of at least one of said two annular connecting elements (2, 3) are coronally arranged fastening means for securing the two connecting elements (2, 3) to a system part, and wherein, at least one of the two annular connecting elements (2, 3) comprises, on a surface (14, 20) facing away from the gap (4), a continuously circumferential, planar shoulder (15) having an oblong or elongated cross section and extending away from the gap (4) to a freely terminating, peripheral circumferential edge (19), wherein (a) said planar shoulder (15) has in the region of the peripheral circumferential edge (19) thereof a thickened region (17) that is connected, via a web (16) that is thinner than the circumferential edge (19), to the at least one of said two annular connecting elements (2, 3), whereinb) the gap (4) between the two annular connecting elements (2, 3) is sealed at both mouth regions, by at least one annular sealing element (10, 11). 2. A rolling bearing device (1; 1; 1) for rotatably coupling two coaxial annular connecting elements (2, 3), at least one of which is configured as a circular ring, and each of which has at least one annular surface that faces a corresponding surface of the other connecting element (2, 3), but is spaced apart therefrom by a gap (4), such that the two connecting elements (2, 3) are rotatable in opposite directions about an axis of rotation at the centers of the two annular connecting elements (2, 3) and generally perpendicular to a ring plane, wherein disposed in the gap (4) between the two connecting elements (2, 3) is a rotary joint, configured as a single- or multi-row rolling bearing, for absorbing axial and radial loads and tilting moments, and wherein provided in at least one end face (6, 7, 21, 23) of at least one of the two connecting elements (2, 3) are coronally arranged fastening means for securing the two connecting elements (2, 3) to a system part, and wherein, at least one of the two annular connecting elements (2, 3) comprises, on a surface (14, 20) facing away from the gap (4), a continuously circumferential, planar shoulder (15) having an oblong or elongated cross section and extending away from the gap (4) to a freely terminating, peripheral circumferential edge (19), wherein (a) the planar shoulder (15) has, in the region of the peripheral circumferential edge (19), a thickened region (17) that is connected, via a web (16) that is thinner than the region (17), to the at least one of said two annular connecting elements (2, 3), whereinb) at least a portion of the planar shoulder (15), in the region near the peripheral circumferential edge (19), is configured as one or more rotationally symmetrical contact surface(s) (18) for brake shoes, and whereinc) the gap (4) between the two annular connecting elements (2, 3) is sealed along both mouth regions, by at least one annular sealing element (10, 11). 3. The device as in claim 1, wherein the radial distance between the peripheral circumferential edge (19) of the shoulder (15) and a nearest raceway for rolling elements (5) is smaller than the distance of said raceway from the axis of rotation of the rolling bearing device (1). 4. The device as in claim 1, wherein said planar shoulder (15) is configured in one piece with the at least one of said two annular connecting elements (2, 3). 5. The device as in claim 1, wherein said planar shoulder (15) is disposed on a jacket surface (14, 20) of the annular connecting element (2, 3) that faces away from the gap (4). 6. The device as in claim 1, wherein said planar shoulder (15) has the shape of a disk. 7. The device as in claim 1, wherein said planar shoulder (15) extends along a plane. 8. The device as in claim 1, wherein the plane of said planar shoulder (15) is intersected perpendicularly by the axis of rotation of said rolling bearing device (1). 9. The device as in claim 1, wherein two mutually opposite boundary surfaces (18) of the thickened region (17), disposed at top and bottom sides thereof, extend parallel to each other. 10. The device as in claim 9, wherein the two mutually opposite boundary surfaces of said web (16) connecting the thickened region (17) at the peripheral circumferential edge (19) to the annular connecting element (2, 3) extend parallel to each other. 11. The device as in claim 1, wherein lengths of cross sections of the thickened region (17 and of the web (16) are generally equal: (IpB−ISt)/(IpB+ISt)≦k1, wherein IpB=the radial length of the cross section of the thickened peripheral region;ISt=the radial length of the cross section of the web between the thickened peripheral region and the particular annular connecting element; andk1=0.25−0.15. 12. The device as in claim 1, wherein the extent to which the annular connecting element (2, 3) is parallel to the longitudinal direction of the cross section of the thickened region (17) to which it is connected, is generally at least equal to or greater than a length of the thickened region (17): IrA≧IpB wherein IrA=the lengthwise extent to which the annular connecting element connected to the planar shoulder is parallel to the longitudinal direction of the cross section of said planar shoulder;IpB=the radial length of the cross section of the thickened peripheral region. 13. The device as in claim 1, wherein the extent to which the at least one of said two annular connecting elements (2, 3) is parallel to the longitudinal direction of the cross section of the thickened region (17) to which it is connected is no more than equal to the length of the cross section of the planar shoulder (15): k2·IrA≦IfA wherein IrA=the lengthwise extent to which the annular connecting element connected to the planar shoulder is parallel to the longitudinal direction of the cross section of said planar shoulder;IfA=the length of the planar shoulder (IfA=IpB+ISt), wherein IpB=the radial length of the cross section of the thickened peripheral region, and ISt=the radial length of the cross section of the web between the thickened peripheral region and the particular annular connecting element;k2=0.85−0.95. 14. The device as in claim 1, wherein the thickened peripheral region (17) is 2-3 times as thick as the web (16) connecting the thickened peripheral region (17) to the at least one of said two annular connecting elements (2, 3). 15. The device as in claim 1, wherein in the regions of transition from the web (16) to the adjacent surface of the thickened region (17), on the one side, and/or of annular connecting element (2, 3), on the other side, the cross-sectional radii of curvature are 1 mm to 3 mm. 16. The device as in claim 1, wherein said two annular connecting elements (2, 3) are disposed radially one inside the other, in such that the gap (4) running between them is generally cylindrical. 17. The device as in claim 1, wherein the two end faces (6, 23; 7, 21) of the two annular connecting elements (2, 3) that are separated from each other by the gap (4) are offset from each other in the axial direction. 18. The device as in claim 1, wherein the height of each of said two annular connecting elements (2, 3), measured in the direction of the axis of rotation of said rolling bearing (1), is smaller than a respective thereto-parallel overall height of said rotary bearing. 19. The device as in claim 1, wherein each of the two annular connecting elements (2, 3) has an end face defining a preferred connecting surface (6, 7), the connecting surface (6, 7) of one of said two connecting elements (2, 3) being on a top side of said rotary joint (1), and the connecting surface (6, 7) of the other of said two connecting elements (2, 3) being on a bottom side of said rotary joint (1). 20. The device as in claim 19, wherein the distance of said planar shoulder (15) from the preferred connecting surface (6, 7) of the at least one of said two annular connecting elements (2, 3) to which said planar shoulder (15) is connected, measured in the direction of the axis of rotation of said rolling bearing (1), is at least equal to a distance of said planar shoulder (15) from the opposite end face (21, 23) of the at least one of said two connecting elements (2, 3). 21. The device as in claim 1, wherein at least a portion of said planar shoulder (15), in the region near the peripheral circumferential edge (19), is configured at least as one rotationally symmetrical contact surface (18) for brake shoes. 22. The device as in claim 1, wherein another one of said two annular connecting elements (2, 3) that is not joined in one piece to said planar shoulder (15), or a portion thereof that is separated from said planar shoulder, is provided with a circumferential toothing (22). 23. The device as in claim 22, wherein the toothing (22) is disposed on the surface (14, 20) of said rotary joint (1) facing away from said planar shoulder (15). 24. The device as in claim 22, wherein the toothing (22) is an axial distance from said planar shoulder (15). 25. The device as in claim 22, wherein the toothing (22) is displaced relative to said planar shoulder (15) in a radial direction backward toward one of said two annular connecting elements (2, 3) which is provided with the toothing (22). 26. The device as in claim 1, wherein the coronally arranged fastening means are configured as through-passing bores (8, 9). 27. The device as in claim 1, wherein at least one rolling bearing row is composed of ball-shaped rolling elements (5). 28. The device as in claim 27, wherein at least one rolling bearing row is provided with at least two rolling elements. 29. The device as in claim 28, wherein at least two rolling-element rows are offset from one other in an axial direction. 30. The device as in claim 28, wherein at least one rolling bearing row comprises a selected one of roller-, needle-, barrel- and cone-shaped rolling elements (5). 31. The device as in claim 1, wherein the gap (4) between the two annular connecting elements (2, 3) is sealed and is filled with a lubricant.
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이 특허에 인용된 특허 (7)
Andree Dietrich (Dortmund DEX) Becker Dieter (Lippstadt-Esbeck DEX) Siemensmeyer Heinrich (Dortmund DEX) Wozniak Johannes (Lippstadt DEX), Center-free large roller bearing.
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