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公开(公告)号：US06311810B1
公开(公告)日：2001-11-06
申请号：US09422453
申请日：1999-10-21
申请人： Patrick Neil Hopkins , John David Fehring , Ilya Lisenker , Richard Edward Longhouse , William Charles Kruckemeyer , Michael Leslie Oliver , Frank M. Robinson , Alexander Apostolos Alexandridis
发明人： Patrick Neil Hopkins , John David Fehring , Ilya Lisenker , Richard Edward Longhouse , William Charles Kruckemeyer , Michael Leslie Oliver , Frank M. Robinson , Alexander Apostolos Alexandridis
IPC分类号： F16F953
CPC分类号： F16F9/535
摘要： A novel and improved magnetorheological fluid damper is provided which effectively secures a flux ring to a piston core in a manner which prevents relative axial and radial movement between the flux ring and the core throughout operation while minimizing the size of the piston assembly yet providing effective damping. Several connector devices are disclosed for both axially and radially securing the flux ring relative to the piston core at one end of the piston assembly in a simple manner without increasing the length of the piston assembly. The connector device may include an outer portion brazed to the flux ring, an inner portion connected to the piston core, bridge portions extending between the outer and inner portions, flow passages formed between the bridge portions and an inlet cavity formed adjacent an annular flow gap to permit unimpeded, enhanced laminar flow through the flow gap by improving the damping effect. Other connector devices may include elongated rivets extending through the flow gap axially along the piston assembly, and elongated pin and spacer tube connectors extending radially between the piston core and the flux ring. Various embodiments of radial support devices are disclosed for possible use in combination with the connector devices to enhance radial support by, for example, the use of balls, a washer with tabs, a coil bobbin with tabs, rivets and axially extending elongated pins.
摘要翻译： 提供了一种新颖且改进的磁流变流体阻尼器，其有效地将磁通环固定到活塞芯上，以防止在操作过程中磁通环和磁芯之间的相对轴向和径向移动，同时最小化活塞组件的尺寸，同时提供有效的阻尼 。 公开了几个连接器装置，用于在活塞组件的一端以简单的方式轴向地和径向地固定磁通环相对于活塞芯，而不增加活塞组件的长度。 连接器装置可以包括钎焊到磁通环的外部部分，连接到活塞芯的内部部分，在外部部分和内部部分之间延伸的桥接部分，形成在桥接部分之间的流动通道和邻近环形流动间隙形成的入口腔 通过改善阻尼效应来允许通过流动间隙的无阻碍的增强的层流。 其它连接器装置可以包括沿着活塞组件轴向延伸穿过流动间隙的细长铆钉，以及在活塞芯和磁通环之间径向延伸的细长销和间隔管连接器。 公开了径向支撑装置的各种实施例，用于与连接器装置结合使用，以通过例如球的使用来增强径向支撑，具有突出部的垫圈，带有突出部，铆钉和轴向延伸的细长销的线圈架。
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公开(公告)号：US6007345A
公开(公告)日：1999-12-28
申请号：US98868
申请日：1998-06-17
申请人： Michael E. Francis , Kathleen D. Murphy , John David Fehring , Tad Vincent Machrowicz , Frank M. Robinson , Steven Kent Raypole
发明人： Michael E. Francis , Kathleen D. Murphy , John David Fehring , Tad Vincent Machrowicz , Frank M. Robinson , Steven Kent Raypole
摘要： A damper and electrical connector system wherein the damper includes a ring mounting element having a base portion attached to a housing of the damper and a hole extending through the base portion and communicating with an interior chamber of the housing. A slot is formed through a side of the ring mounting element and communicates with the hole in the base. The electrical connector includes an end inserted through the slot and a power terminal extends through the hole formed in the base and makes electrical connection with an element requiring electrical power that is carried in the housing. Preferably the electrical connector also includes a ground terminal which makes electrical contact with the ring mounting element. A vehicle mounting rod is inserted through the ring mount to hold the connector in place.
摘要翻译： 一种阻尼器和电连接器系统，其中所述阻尼器包括环安装元件，所述环安装元件具有附接到所述阻尼器的壳体的基部和延伸穿过所述基座部分并与所述壳体的内部室连通的孔。 通过环安装元件的一侧形成槽，并与基座中的孔连通。 电连接器包括插入穿过狭槽的端部，电源端子延伸穿过形成在基座中的孔，并与需要电力的元件电连接，该元件承载在壳体中。 优选地，电连接器还包括与环安装元件电接触的接地端子。 车辆安装杆通过环形安装座插入以将连接器固定在适当的位置。
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3.发明授权Method and apparatus for removing a slewing ring from a pedestal mounted crane 失效从基座安装的起重机上卸下回转支承的方法和装置
公开(公告)号：US4271578A
公开(公告)日：1981-06-09
申请号：US83328
申请日：1979-10-10
CPC分类号： B66C23/84 , Y10T29/49819
摘要： The invention relates to a method of removing a slewing ring (3) from a pedestal-mounted crane (2). A carriage (14) is positioned on a pair of elongate guide members (9) which lie substantially parallel, both to one another and to the plane of the slewing ring (3), and which extend alongside the pedestal (14). The crane (2) is raised relative to the pedestal (4) by means of jacks (7) and the carriage (14) is moved to a position beneath the crane (2). The slewing ring (3) is then positioned on the carriage and withdrawn on the carriage from beneath the crane.
摘要翻译： 本发明涉及一种从基座式起重机（2）上拆卸回转支承（3）的方法。 托架（14）定位在一对细长导向构件（9）上，所述一对细长导向构件（9）彼此大致平行且彼此平行，并且与旋转环（3）的平面基本平行，并且与底座（14）一起延伸。 起重机（2）通过千斤顶（7）相对于基座（4）升高，托架（14）移动到起重机（2）下方的位置。 然后将回转环（3）定位在滑架上并从起重机下方在滑架上收回。
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公开(公告)号：US06386343B1
公开(公告)日：2002-05-14
申请号：US09845707
申请日：2001-04-30
IPC分类号： F16F1503
CPC分类号： F16F9/461 , F16F9/3405 , F16F9/535
摘要： A piston assembly for magneto rheological (MR) fluid vibration damper affixed to a suspension system includes a piston that strokes inside a housing to dampen vibrations. The piston includes a core affixed to a piston shaft. An electric coil is affixed to the core and is coaxially aligned with the piston shaft. A sleeve circumscribes the piston core having a wall with a first inner diameter. An annular fluid passage is formed between the sleeve and the core. Fluid passes through the annular passage when the piston strokes inside the damper. The wall includes a channel having a second inner diameter greater than the first inner diameter. The channel reduces resistance to the piston from the MR fluid derived from temperature induced viscosity variations.
摘要翻译： 固定在悬架系统上的用于磁流变（MR）流体振动阻尼器的活塞组件包括一个活塞，该活塞在壳体内部进行冲击以抑制振动。 活塞包括固定在活塞轴上的芯。 电线圈固定在芯上并与活塞轴同轴对准。 套筒围绕具有第一内径的壁的活塞芯。 在套筒和芯之间形成环形流体通道。 当活塞在阻尼器内部行进时，流体通过环形通道。 壁包括具有大于第一内径的第二内径的通道。 该通道降低由温度引起的粘度变化导致的MR流体对活塞的阻力。
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公开(公告)号：US4252243A
公开(公告)日：1981-02-24
申请号：US2971
申请日：1979-01-12
CPC分类号： B66C23/90
摘要： A crane has a hoist rope which passes over a boom to a drum driven by a hudraulic motor and including a brake. The crane includes means for releasing the brake when the free end of the rope is a given distance below the crane, and has means for relieving hydraulic pressure from the motor in response to the horizontal radius of the free end of the rope so that at a given radius the motor can lift only a given maximum load.
摘要翻译： 起重机具有将起重臂通过由液压马达驱动并包括制动器的鼓的升降绳。 起重机包括当绳索的自由端在起重机下方给定距离时释放制动器的装置，并且具有用于响应于绳索的自由端的水平半径而从电动机释放液压的装置，使得在 给定半径电机只能提供给定的最大负载。
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