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公开(公告)号：EP2505864B1
公开(公告)日：2024-07-03
申请号：EP10833040.8
申请日：2010-11-02
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公开(公告)号：EP2133582B1
公开(公告)日：2018-09-26
申请号：EP08711789.1
申请日：2008-02-22
申请人： NTN Corporation
发明人： KOBAYASHI, Masazumi
CPC分类号： F16D3/224 , Y10S464/905
摘要： Provided is a constant velocity universal joint capable of being smoothly rotated even when a high operating angle is formed and large torque is born and of reducing excessive load applied to the cage so as to strengthen the cage. The constant velocity universal joint includes an outer joint member having an inner spherical surface (1) in which multiple track grooves (2) are formed; an inner joint member having an outer spherical surface (4) in which multiple track grooves (5) paired with the track grooves (2) of the outer joint member are formed; multiple balls (7) interposed between the track grooves (2) of the outer joint member and the track grooves (5) of the inner joint member so as to transmit torque; and a cage (9) interposed between the inner spherical surface (1) of the outer joint member and the outer spherical surface (4) of the inner joint member so as to retain the balls (7). A tapered relief portion (17) retracted with respect to the outer spherical surface (4) is formed with low curvature at a back end portion (4a) of the outer spherical surface (4) of the inner joint member so as to be smoothly continuous with the outer spherical surface (4).
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公开(公告)号：EP3369956A1
公开(公告)日：2018-09-05
申请号：EP16859506.4
申请日：2016-10-04
申请人： NTN Corporation
CPC分类号： B60B27/0036 , F16C19/18 , F16C19/181 , F16C35/07 , F16C2326/02 , F16D3/20 , F16D3/224 , Y02T10/86
摘要： Provided is a fixed type constant velocity universal joint, including: an outer joint member (12) having a cup shape; an inner joint member (13), which is received in the outer joint member (12), and is configured to transmit torque between the inner joint member (13) and the outer joint member (12) through intermediation of balls (14) while allowing angular displacement; and a hollow shaft (16), which is coupled to the inner joint member (13) so as to allow torque transmission. A threaded hole (29) is formed in a bottom portion (19) of the outer joint member (12) along an axial direction. A recessed hole (24) is formed to be open in a shaft end portion of the hollow shaft (16) opposed to the threaded hole (29). An embedded stopper (30) that enters the threaded hole (29) is press-fitted into the recessedhole (24). The embedded stopper (30) is retractable into the hollow shaft (16) in a press-fitting direction.
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公开(公告)号：EP3354919A1
公开(公告)日：2018-08-01
申请号：EP16848498.8
申请日：2016-09-07
申请人： NTN Corporation
发明人： FUJIO, Teruaki
CPC分类号： F16D3/224 , F16D3/20 , F16D3/227 , F16D2003/22303 , F16D2003/22309
摘要： In a fixed type constant velocity universal joint according to the present invention, six torque transmitting ball tracks (20) are defined as a first track, a second track, a third track, a fourth track, a fifth track, and a sixth track along a circumferential direction. Further, in the fixed type constant velocity universal joint according to the present invention, an axial offset amount of a curvature center of each of track grooves (12) of an outer joint member (13) and an axial offset amount of a curvature center of each of track grooves (15) of an inner joint member (16) are set to 0. Further, in the fixed type constant velocity universal joint according to the present invention, the track grooves (12) of the outer joint member (13) and the track grooves (15) of the inner joint member (16) are each inclined with respect to an axis line.
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公开(公告)号：EP2662583B1
公开(公告)日：2018-06-13
申请号：EP11854987.2
申请日：2011-12-06
申请人： NTN Corporation
发明人： FUJIO, Teruaki
CPC分类号： F16D3/24 , F16D3/224 , F16D2003/22303 , F16D2003/22309 , Y10S464/906
摘要： Provided is a fixed type constant velocity universal joint which suppresses heat generation under high load and in high speed rotation, has a higher durability, and involves less torque loss. The fixed type constant velocity universal joint includes eight or twelve torque transmitting balls (27) arranged in ball tracks formed of pairs of track grooves (22) of an outer joint member (23) and track grooves (25) of an inner joint member (26), respectively. A center of curvature (O1) of each of the track grooves (22) of the outer joint member (23) and a center of curvature (O2) of each of the track grooves (25) of the inner joint member (26) have an axial offset of zero. When eight torque transmitting balls are employed, the track grooves (22 and 25) of the outer joint member (23) and the inner joint member (26) each include inclined tracks arranged at a 90° pitch along a circumferential direction and inclined in opposite directions with respect to an axial line and other tracks which are formed between the inclined tracks and parallel to the axial line.
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公开(公告)号：EP2908020A4
公开(公告)日：2016-09-07
申请号：EP13846143
申请日：2013-09-19
IPC分类号： F16D3/2233 , F16D3/2237 , F16D3/224
CPC分类号： F16D3/223 , F16D3/2233 , F16D3/2237 , F16D3/224 , F16D2003/22306 , F16D2003/22309 , Y10S464/906
摘要： Provided is a fixed type constant velocity universal joint, in which track grooves of an outer joint member include: first track groove portions positioned on an interior side; and second track groove portions positioned on an opening side. Each of the first track groove portions includes an arc part having a curvature center that is positioned without being offset in an axial direction with respect to a joint center. The first track groove portions are inclined in a peripheral direction of the outer joint member with respect to a joint axial line and adjacent to each other in the peripheral direction with their inclination directions opposite to each other. Each of the second track groove portions is formed into a different shape from a shape of the each of the first track groove portions so as to increase an effective track length at a maximum operating angle. The each of the first track groove portions and the each of the second track groove portions are connected to each other at a position on the opening side with respect to the joint center. Track grooves of the inner joint member are formed so as to be mirror-image symmetrical with corresponding paired track grooves of the outer joint member with respect to a plane including the joint center at an operating angle of 0°. A pocket clearance is set within a range in which balls and pockets of a cage are fitted with both an interference fit and a clearance fit.
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公开(公告)号：EP2792896A4
公开(公告)日：2016-08-03
申请号：EP12858265
申请日：2012-11-16
IPC分类号： F16D3/2233 , F16D3/224
CPC分类号： F16D3/24 , F16D3/2233 , F16D3/224 , F16D2003/22306 , Y10S464/906
摘要： In a fixed type constant velocity universal joint (1), track grooves (7) of an outer joint member (2) include: first track groove portions (7a) positioned on an interior side; and second track groove portions (7b) positioned on an opening side. The first track groove portions (7a) each have an arc-shaped ball raceway center line (Xa) having a curvature center that is prevented from being offset in an axial direction of the outer joint member with respect to a joint center (O). Planes (M) each including at least the ball raceway center line (Xa) and the joint center (O) are inclined with respect to a joint axial line (N-N) with their inclination directions alternately opposite to each other in the first track groove portions (7a) that are adjacent to each other in a peripheral direction of the outer joint member. The second track groove portions (7b) each have an arc-shaped ball raceway center line (Xb) having a curvature center that is offset to a radially outer side with respect to the ball raceway center line (Xa) of corresponding one of the first track groove portions (7a). An end portion (A) of the ball raceway center line (Xa) of each of the first track groove portions (7a) is positioned on the opening side with respect to the joint center (O). A position of the end portion (A) occupies at least 60% of an effective track length on the opening side with respect to the joint center (O). The ball raceway center line (Xb) of each of the second track groove portions (7b) is connected to the end portion (A). A ball raceway center line (Y) of each of track grooves of an inner joint member (3) is formed so as to be mirror-image symmetrical with a ball raceway center line (X) of corresponding one of the paired track grooves (7) of the outer joint member (2) with respect to a plane (P) including the joint center (O) at an operating angle of 0°.
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公开(公告)号：EP2716925A4
公开(公告)日：2016-06-01
申请号：EP12789972
申请日：2012-04-27
发明人： FUJIO TERUAKI
IPC分类号： F16D3/20 , F16D3/2237 , F16D3/224 , F16D3/2245
CPC分类号： F16D3/24 , F16D3/224 , F16D3/2245 , F16D2003/22309 , F16D2300/12
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公开(公告)号：EP3015729A1
公开(公告)日：2016-05-04
申请号：EP14817418.8
申请日：2014-05-26
申请人： NTN Corporation
发明人： HIRUKAWA, Hiroyasu , FUJIO, Teruaki
IPC分类号： F16D3/20 , F16D3/224 , F16D3/2245
CPC分类号： F16D3/224 , F16D3/223 , F16D2003/22303 , F16D2003/22309 , Y10S464/906
摘要： Provided is a fixed type constant velocity universal joint (1) of a track groove crossing type, in which track grooves (7) of an outer joint member (2) are each formed into an arc shape having a curvature center at a joint center (0), the track grooves (7) being inclined in a peripheral direction of the outer joint member (2) with respect to a joint axial line (N-N) and being adjacent to each other in the peripheral direction with their inclination directions opposite to each other, and in which track grooves (9) of an inner joint member (3) are formed so as to be mirror-image symmetrical with the paired track grooves (7) of the outer joint member (2) with respect to a joint center plane (P) at an operating angle of 0°. The track grooves (7, 9) of both the joint members (2, 3) each have a length corresponding to a maximum operating angle (θmax) required for a propeller shaft, and surface treatment is performed, for example, on a defined surface of each of the track grooves (7) of the outer joint member (2) so as to reduce frictional resistance (sliding resistance) against balls (4).
摘要翻译： 本发明提供一种轨道槽交叉型的固定式等速万向接头（1），其中，外侧联轴器构件（2）的滚道槽（7）分别形成为在接头中心具有曲率中心的圆弧状 0），所述滚道槽（7）相对于接头轴线（NN）在所述外侧联轴器构件（2）的周向上倾斜，并且在所述周向方向上彼此相邻，并且它们的倾斜方向与各自的倾斜方向相反 其中，内侧接头部件（3）的滚道槽（9）形成为与外侧接头部件（2）的成对滚道槽（7）相对于接头中心呈镜像对称 平面（P）在操作角度0°。 两个接头构件2,3的轨道槽7,9的长度分别对应于传动轴所需的最大工作角度θmax，并且例如在限定的表面上进行表面处理 （2）的每个滚道槽（7）的外径，以减小对滚珠（4）的摩擦阻力（滑动阻力）。
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公开(公告)号：EP2964970A1
公开(公告)日：2016-01-13
申请号：EP14704137.0
申请日：2014-02-11
CPC分类号： F16D3/223 , F16D3/224 , F16D3/227 , F16D2003/22309
摘要： The invention relates to a constant velocity joint, comprising a joint outside part (2) having ball tracks (7) on the inside circumference (4), a joint inside part (3) having ball tracks (8) on the outside circumference (5), wherein a ball track (7) on the joint outside part (2) and a ball track (8) on the joint inside part (3) form a ball track pair, one ball (9) per ball track pair and a cage (10) which is arranged between the joint outside part (2) and the joint inside part (3) and has windows (11) in which the balls (9) are received. According to the invention, a first group of ball track pairs, having ball tracks (7.1, 8.1) which are curved and extend in a radial plane encompassing the center axis (A) of the respective joint component, and a second group of ball track pairs, having ball tracks (7.2, 8.2) which extend straight and cross each other, are thus formed. The cage (10) is loosely guided on one of the two jointed components (2, 3) and spaced apart from the other jointed component (3, 2). This results in a particularly lightweight constant velocity joint which is simple and cost-effective to produce, having particularly high efficiency and particularly low interior friction.
摘要翻译： 本发明涉及一种等速万向节，包括在内周（4）上具有球轨（7）的接头外部（2），在外圆周（5）上具有球轨（8）的接头内部（3） ），其中所述接头外侧部分（2）上的滚珠轨道（7）和所述接头内部部分（3）上的滚珠轨道（8）形成球轨道对，每个球轨对和一个保持架 （10），其设置在所述接头外侧部（2）与所述接头内侧部（3）之间，并具有容纳所述滚珠（9）的窗口（11）。 根据本发明，具有滚珠轨道（7.1,8.1）的第一组滚珠轨道对，其在包围各个接头部件的中心轴线（A）的径向平面内弯曲并延伸，并且第二组球轨道 因此形成具有直线延伸并彼此交叉的球轨道（7.2,8.2）的对。 保持架（10）在两个接合部件（2,3）中的一个上被松动地引导并且与另一个接合部件（3,2）间隔开。 这导致特别轻的等速度接头，其制造简单且成本有效，具有特别高的效率和特别低的内部摩擦。
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