公开(公告)号：US08307940B2

公开(公告)日：2012-11-13

申请号：US12723781

申请日：2010-03-15

申请人： Mark Bugosh ,  Brian Urbach

发明人： Mark Bugosh ,  Brian Urbach

IPC分类号： B62D5/04

CPC分类号： B62D5/0448 ,  F16C27/066 ,  F16H25/24

摘要： An improved structure for a rack drive assembly adapted for use in a vehicle electric power steering assembly includes a ball nut assembly operatively connected to a screw portion of a rack portion of a steering member of the power steering assembly for effecting axial movement of the steering member upon rotation of a vehicle steering wheel. According to one embodiment, the ball nut assembly includes a ball nut having an outer surface; a bearing assembly fixedly disposed in the rack housing and carried by the ball nut for rotatably supporting the ball nut assembly relative to the steering member; and a damper disposed on an outer race of the bearing assembly. The damper includes a pair of dampers disposed on the outer race of the bearing assembly, each of the dampers including at least a first member formed from a first rigid material and a second member formed from a second damping material.

摘要翻译： 适用于车辆电动助力转向装置的齿条驱动组件的改进结构包括：一个可操作地连接到动力转向组件的转向构件的齿条部分的螺纹部分的滚珠螺母组件，用于实现转向构件的轴向运动 在车辆方向盘旋转时。 根据一个实施例，滚珠螺母组件包括具有外表面的滚珠螺母; 轴承组件，其固定地设置在所述齿条壳体中并由所述滚珠螺母承载，用于相对于所述转向构件可旋转地支撑所述滚珠螺母组件; 以及设置在所述轴承组件的外圈上的阻尼器。 阻尼器包括设置在轴承组件的外圈上的一对阻尼器，每个阻尼器至少包括由第一刚性材料形成的第一构件和由第二阻尼材料形成的第二构件。

公开(公告)号：US20110220432A1

公开(公告)日：2011-09-15

申请号：US12723781

申请日：2010-03-15

申请人： Mark Bugosh ,  Brian Urbach

发明人： Mark Bugosh ,  Brian Urbach

IPC分类号： B62D5/04

CPC分类号： B62D5/0448 ,  F16C27/066 ,  F16H25/24

摘要： An improved structure for a rack drive assembly adapted for use in a vehicle electric power steering assembly includes a ball nut assembly operatively connected to a screw portion of a rack portion of a steering member of the power steering assembly for effecting axial movement of the steering member upon rotation of a vehicle steering wheel. According to one embodiment, the ball nut assembly includes a ball nut having an outer surface; a bearing assembly fixedly disposed in the rack housing and carried by the ball nut for rotatably supporting the ball nut assembly relative to the steering member; and a damper disposed on an outer race of the bearing assembly. The damper includes a pair of dampers disposed on the outer race of the bearing assembly, each of the dampers including at least a first member formed from a first rigid material and a second member formed from a second damping material.

摘要翻译： 适用于车辆电动助力转向装置的齿条驱动组件的改进结构包括：一个可操作地连接到动力转向组件的转向构件的齿条部分的螺纹部分的滚珠螺母组件，用于实现转向构件的轴向运动 在车辆方向盘旋转时。 根据一个实施例，滚珠螺母组件包括具有外表面的滚珠螺母; 轴承组件，其固定地设置在所述齿条壳体中并由所述滚珠螺母承载，用于相对于所述转向构件可旋转地支撑所述滚珠螺母组件; 以及设置在所述轴承组件的外圈上的阻尼器。 阻尼器包括设置在轴承组件的外圈上的一对阻尼器，每个阻尼器至少包括由第一刚性材料形成的第一构件和由第二阻尼材料形成的第二构件。

公开(公告)号：US07055646B2

公开(公告)日：2006-06-06

申请号：US10121233

申请日：2002-04-12

申请人： Mark Bugosh

发明人： Mark Bugosh

IPC分类号： B62D5/04

CPC分类号： B62D5/0424 ,  B62D5/0448

摘要： This invention relates to an improved structure for a rack drive assembly adapted for use in a vehicle electric power steering assembly. The electric power steering assembly includes a steering member (32), a ball nut assembly (70), a bearing assembly (80) and an electric motor (60). The steering member (32) is disposed in a rack housing (30) and includes a rack portion (34) operatively connected to a vehicle steering wheel (12) and a screw portion (40) having an external thread convolution (42). The ball nut assembly (70) is operatively connected to the screw portion (40) of the rack portion (34) of the steering member (32) for effecting axial movement of the steering member (32) upon rotation of the vehicle steering wheel (12). The ball nut assembly (70) includes a rotor shaft (76) and a ball nut (72) fixed to the shaft (76) for rotation therewith. The ball nut (72) includes an outer surface (96) and the rotor shaft (76) includes an inner surface (114). The bearing assembly (80) is carried by the rotor shaft (76) for rotatably supporting the ball nut assembly (70) relative to the steering member (32). The electric motor (60) is operatively coupled to the rotor shaft (76) via a pulley assembly (82). The power steering assembly further includes an insulator (74) disposed between at least a portion of the outer surface (96) of the ball nut (72) and the inner surface (114) of the rotor shaft (76). The insulator (74) isolates the ball nut (72) from at least one of the pulley assembly (82) and the bearing assembly (80) to thereby reduce the noise in the ball nut assembly (70).

摘要翻译： 本发明涉及适用于车辆电动助力转向组件的齿条驱动组件的改进结构。 电动助力转向组件包括转向构件（32），滚珠螺母组件（70），轴承组件（80）和电动机（60）。 转向构件（32）设置在齿条壳体（30）中，并且包括可操作地连接到车辆方向盘（12）的齿条部分（34）和具有外螺纹卷积（42）的螺纹部分（40）。 滚珠螺母组件（70）可操作地连接到转向构件（32）的齿条部分（34）的螺纹部分（40），用于在车辆方向盘转动时实现转向构件（32）的轴向运动 12）。 滚珠螺母组件（70）包括转子轴（76）和固定到轴（76）上以与其一起旋转的滚珠螺母（72）。 滚珠螺母（72）包括外表面（96），转子轴（76）包括内表面（114）。 轴承组件（80）由转子轴（76）承载，用于相对于转向构件（32）可旋转地支撑滚珠螺母组件（70）。 电动机（60）经由滑轮组件（82）可操作地联接到转子轴（76）。 动力转向组件还包括设置在滚珠螺母（72）的外表面（96）的至少一部分与转子轴（76）的内表面（114）之间的绝缘体（74）。 绝缘体（74）将滚珠螺母（72）与滑轮组件（82）和轴承组件（80）中的至少一个隔离，从而减小滚珠螺母组件（70）中的噪音。