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公开(公告)号：US20240301929A1
公开(公告)日：2024-09-12
申请号：US18591321
申请日：2024-02-29
IPC分类号： F16D65/14 , F16D125/40 , F16H25/22 , F16H25/24
CPC分类号： F16D65/14 , F16H25/2214 , F16H25/24 , F16D2125/40 , F16D2250/0046 , F16H2025/249
摘要： A ball screw drive for an actuator assembly of a vehicle brake is disclosed, comprising a rotatably mounted ball screw shaft on which a ball nut, which is open axially on one side, is mounted, wherein at least one thread is formed on a circumferential face of the ball screw shaft and a corresponding thread is formed on an inner face of the ball nut, wherein a large number of balls is guided in the threads in such a way that rotation of the ball screw shaft causes axial displacement of the ball nut along an axis of rotation of the ball screw shaft. The ball nut has a corrosion protection coating on an exterior thereof, at least on an end face thereof and in a region of a circumferential wall adjacent to the end face. A method for producing a ball screw drive is disclosed.
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公开(公告)号：US12053940B2
公开(公告)日：2024-08-06
申请号：US17004699
申请日：2020-08-27
发明人： Navaneethakrishnan Pandian , James William Bernard , Jon Pethick , Michael Somerfield , Lee Slater
IPC分类号： F16H25/24 , B29C70/34 , B29C70/48 , B29K63/00 , B29K271/00 , B29K307/04 , B29L31/00
CPC分类号： B29C70/48 , B29C70/347 , F16H25/24 , B29K2063/00 , B29K2271/00 , B29K2307/04 , B29L2031/748 , F16H2025/249
摘要： An actuator includes: a cylinder, formed of carbon fiber reinforced polymer (CFRP), that extends along an actuator axis between a cylinder first end and a cylinder second end, and defines a cylinder inner diameter surface; a screw shaft that extends along the actuator axis between a screw shaft first end and a screw shaft second end, that is at least partially within the cylinder, and that is operationally connected, intermediate of the screw shaft first and second ends, to the cylinder second end; a screw shaft head affixed to the screw shaft first end, that in operation rotates relative to the cylinder, and that defines a screw shaft head outer diameter surface that faces the cylinder inner diameter surface with a slip fit therebetween; and a bearing ring affixed to the screw shaft head outer diameter surface, that is formed of polyether ether ketone (PEEK).
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公开(公告)号：US11821498B2
公开(公告)日：2023-11-21
申请号：US17533646
申请日：2021-11-23
CPC分类号： F16H25/24 , B64C13/00 , F16H2025/249
摘要： Leadscrew and nut actuators are described. The leadscrew and nut actuators include a leadscrew having an external thread and formed from a first material, a nut configured to receive the leadscrew, the nut having an internal thread and formed from a second material, and an insert arranged between the internal thread of the nut and the external thread of the leadscrew, the insert configured to transfer force between the external thread and the internal thread and prevent material contact between the leadscrew and the nut. The insert is formed of a third material different from the first material and the second material.
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公开(公告)号：US09810298B2
公开(公告)日：2017-11-07
申请号：US15148145
申请日：2016-05-06
申请人： Microtecnica S.r.l
发明人： Marco Gianfranceschi
CPC分类号： F16H25/2418 , C23C4/11 , C23C4/134 , C23C4/18 , F16H25/2204 , F16H2025/249 , F16J15/181
摘要： A rotary seal comprising: a shaft with a chromium oxide coating provided at a seal contact area; wherein said coating has a hardness of at least 55 Rockwell-C. The coating may have a surface roughness parameter (Ra) of between 0.2 and 0.4 circular. The coating may have a thickness of at least 0.1 mm. The coating layer forms part of a rotary seal with a flexible seal element that is biased into contact with the surface of the coating. The flexible seal element may be biased against the shaft by a spring to increase the pressure of the flexible seal element against the coating. The coating is preferably deposited by a plasma spray process.
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公开(公告)号：US09500224B2
公开(公告)日：2016-11-22
申请号：US13445469
申请日：2012-04-12
CPC分类号： F16C29/0692 , B23Q5/404 , F16C29/0695 , F16H25/2204 , F16H25/24 , F16H57/041 , F16H57/0497 , F16H2025/204 , F16H2025/249 , Y10T74/18648
摘要： A linear motion screw assembly is provided herein which comprises (a) at least a first end support, (b) a screw shaft rotatably mounted to the first end support and defining a longitudinal direction, (c) a linear guide means mounted to the first end support and oriented parallel to the screw shaft, (d) a follower assembly mounted to the screw shaft and, associated therewith, an anti-rotation means in translatable contact with the guide means and movable in a longitudinal direction along the guide means, and (e) a cartridge non-rotatably mounted within said follower assembly, said cartridge including a guide nut having an axial bore through which the screw shaft is rotatably disposed.
摘要翻译： 本文提供了一种直线运动螺钉组件，其包括（a）至少第一端支撑件，（b）可旋转地安装到第一端支撑件并且限定纵向方向的螺钉轴，（c）安装到第一端支撑件的直线引导装置 端部支撑件并且平行于螺杆轴定向;（d）随动组件，其安装到螺杆轴上并与其相关联地具有与引导装置可平移接触并沿着引导装置在纵向方向上可移动的防旋转装置，以及 （e）不可旋转地安装在所述从动组件内的盒，所述盒包括具有轴向孔的导向螺母，所述螺杆轴通过所述轴向可旋转地设置。
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公开(公告)号：US20130228026A1
公开(公告)日：2013-09-05
申请号：US13599185
申请日：2012-08-30
申请人： Arthur Rupp , Steffen Truthmann
发明人： Arthur Rupp , Steffen Truthmann
IPC分类号： B62D3/06
CPC分类号： B62D3/06 , B62D5/0424 , B62D5/0448 , F16H25/24 , F16H55/48 , F16H2025/249 , Y10T74/18576
摘要： A power steering system, and more particularly a power-assisted steering system for a vehicle, comprises a lead screw which is driven by a servo motor and is composed of a nut, which is mounted axially non-displaceably in a frame, and an axially displaceable component, the thread of which is engaged with a thread of the nut, and further comprising a belt pulley, which is non-rotatably connected to the nut and forms part of a traction mechanism gear between the servo motor and the nut, wherein the nut is mounted in the frame by a rolling bearing. So as to provide a power steering system which produces little noise and is easy to install, very precise in operation and also cost-effective to produce, the belt pulley is produced from plastic.
摘要翻译： 动力转向系统，特别是用于车辆的动力辅助转向系统包括由伺服电动机驱动的导螺杆，其由轴向不可移动地安装在框架中的螺母和轴向 可移动部件，其螺纹与螺母的螺纹接合，并且还包括皮带轮，其不可旋转地连接到螺母并形成伺服电动机和螺母之间的牵引机构齿轮的一部分，其中， 螺母通过滚动轴承安装在框架中。 为了提供一种动力转向系统，其产生噪音小，易于安装，操作非常精确，并且生产成本有效，皮带轮由塑料制成。
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公开(公告)号：US20130160586A1
公开(公告)日：2013-06-27
申请号：US13744580
申请日：2013-01-18
CPC分类号： F16H57/0467 , F16C29/0683 , F16C33/6648 , F16C33/6688 , F16H25/12 , F16H25/2204 , F16H57/041 , F16H57/0497 , F16H2025/249 , Y10T74/18744
摘要： A cartridge assembly for use in conjunction with a linear motion guided screw assembly includes (a) a cylindrical housing having an axial bore, at least a portion of said bore being defined by a threaded surface configured to engage a screw shaft; (b) at least one bearing disposed in the axial bore of the housing; (c) at least one retainer ring disposed in the axial bore of the housing; and, (d) a cylindrical lubricant block disposed in the axial bore of the housing, said lubricant block being fabricated from a microporous polymer which is impregnated with a lubricant oil.
摘要翻译： 与直线运动导向螺钉组件一起使用的筒组件包括（a）具有轴向孔的圆柱形壳体，所述孔的至少一部分由构造成接合螺杆轴的螺纹表面限定; （b）设置在壳体的轴向孔中的至少一个轴承; （c）设置在壳体的轴向孔中的至少一个保持环; 和（d）设置在壳体的轴向孔中的圆柱形润滑剂块，所述润滑剂块由浸渍有润滑油的微孔聚合物制成。
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公开(公告)号：US20120260755A1
公开(公告)日：2012-10-18
申请号：US13445469
申请日：2012-04-12
CPC分类号： F16C29/0692 , B23Q5/404 , F16C29/0695 , F16H25/2204 , F16H25/24 , F16H57/041 , F16H57/0497 , F16H2025/204 , F16H2025/249 , Y10T74/18648
摘要： A linear motion screw assembly is provided herein which comprises (a) at least a first end support, (b) a screw shaft rotatably mounted to the first end support and defining a longitudinal direction, (c) a linear guide means mounted to the first end support and oriented parallel to the screw shaft, (d) a follower assembly mounted to the screw shaft and, associated therewith, an anti-rotation means in translatable contact with the guide means and movable in a longitudinal direction along the guide means, and (e) a cartridge non-rotatably mounted within said follower assembly, said cartridge including a guide nut having an axial bore through which the screw shaft is rotatably disposed.
摘要翻译： 本文提供了一种直线运动螺钉组件，其包括（a）至少第一端支撑件，（b）可旋转地安装到第一端支撑件并且限定纵向方向的螺钉轴，（c）安装到第一端支撑件的直线引导装置 端部支撑件并且平行于螺杆轴定向;（d）随动组件，其安装到螺杆轴上并与其相关联地具有与引导装置可平移接触并沿着引导装置在纵向方向上可移动的防旋转装置，以及 （e）不可旋转地安装在所述从动组件内的盒，所述盒包括具有轴向孔的导向螺母，所述螺杆轴通过所述轴向可旋转地设置。
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公开(公告)号：US20080107369A1
公开(公告)日：2008-05-08
申请号：US11792344
申请日：2005-10-05
IPC分类号： F16C19/00
CPC分类号： F16C33/32 , F16C19/06 , F16C19/30 , F16C19/364 , F16C33/34 , F16C33/366 , F16C33/425 , F16C33/565 , F16C33/585 , F16C33/62 , F16C33/6696 , F16C2202/54 , F16C2204/34 , F16C2240/40 , F16C2240/44 , F16C2240/60 , F16C2360/00 , F16C2360/22 , F16C2362/52 , F16H25/20 , F16H2025/249 , Y10S384/907
摘要： A rolling device in which damage such as seizure or wear is less liable to occur and which has a long life, even when used under severe conditions such as high speed, heavy load, high temperature and insufficient lubrication. A thrust needle roller bearing includes an inner ring 1, outer ring 2, and a plurality of rolling elements 3 rollably arranged between a raceway surface 1a of inner ring 1 and a raceway surface 2a of outer ring 2. A lubricant film consisting of a solid lubricant is coated over an area equivalent to an area ratio of 75% or more of at least one member of the group consisting of raceway surface 1a of inner ring 1, raceway surface 2a of outer ring 2, and a rolling contact surface 3a of rolling element 3. The thickness of the lubricant film is preferably 0.05 μm or more and 8 μm or less.
摘要翻译： 即使在诸如高速，重载，高温和不充分的润滑等恶劣条件下使用的滚动装置，其中诸如卡死或磨损的损伤较不易于发生并且寿命长。 推力滚针轴承包括内圈1，外圈2和滚动地设置在内圈1的滚道表面1a和外圈2的滚道表面2a之间的多个滚动元件3。 将由固体润滑剂组成的润滑剂膜涂覆在由内圈1的滚道面1a，外圈2的滚道面2a构成的组中的至少一个构件的面积比为75％以上的面积上 以及滚动体3的滚动接触面3a。 润滑剂膜的厚度优选为0.05μm以上8μm以下。
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公开(公告)号：US20080031557A1
公开(公告)日：2008-02-07
申请号：US11663846
申请日：2005-09-30
申请人： Shigeru Yamanaka , Hong Yang
发明人： Shigeru Yamanaka , Hong Yang
IPC分类号： F16C33/30
CPC分类号： F16C29/0659 , C23C14/0623 , C23C14/35 , F16C29/0657 , F16C33/3706 , F16C33/3713 , F16C33/6696 , F16C2202/04 , F16C2202/54 , F16C2223/60 , F16C2240/60 , F16H25/20 , F16H2025/249 , Y02T10/865
摘要： A rolling guide device 160 is provided with a track rail 161 as a track member and a movable member 163 mounted to the track rail 161 to be movable through balls 162. A solid lubricant film is formed to the ball 162 by using a closed magnetic field unbalanced magnetron spattering apparatus (CUMS apparatus). The solid lubricant film has a low friction coefficient at the outermost surface of the film, withstands an inner repeated stress, and has a high adhesion performance. Such solid lubricant film has never been from its inside or boundary portion and wears at the minimum speed from the film surface, so that a reliable and highly ideal solid lubricating function can be attained, and by applying the solid lubricant film having improved adhesion performance and abrasion resistance to the rolling guide device, there can be provided a rolling guide device usable in a specific environmental condition such as an undesirable lubricating environment, high temperature vacuum condition, or an oil-free condition.
摘要翻译： 滚动导向装置160设置有作为轨道构件的轨道161和安装到轨道161以可移动穿过球162的可动构件163。 通过使用闭合磁场不平衡磁控溅射装置（CUMS装置），向球162形成固体润滑剂膜。 固体润滑剂膜在膜的最外表面具有低摩擦系数，承受内部重复应力，并且具有高粘合性能。 这种固体润滑剂膜从来没有从其内部或边界部分以最小速度从膜表面磨损，从而可以获得可靠和高度理想的固体润滑功能，并且通过涂覆具有改进的粘合性能的固体润滑剂膜和 对滚动导向装置的耐磨性，可以提供可用于特殊环境条件如滚动导向装置，例如不良润滑环境，高温真空条件或无油条件。
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