ACTIVE COMPENSATING HYDROSTATIC BEARING AND HYDROSTATIC BEARING MODULE USING THE SAME
    53.
    发明申请
    ACTIVE COMPENSATING HYDROSTATIC BEARING AND HYDROSTATIC BEARING MODULE USING THE SAME 有权
    主动补偿静水压轴承和使用其的静液压轴承模块

    公开(公告)号:US20130016927A1

    公开(公告)日:2013-01-17

    申请号:US13357148

    申请日:2012-01-24

    IPC分类号: F16C32/06 F16C33/72

    摘要: An active/self-sensing compensating hydrostatic bearing is disposed between first and second structures to allow relative movement between the first and second structures. The hydrostatic bearing includes a body and a compensator. The body, fixed to the first structure and separated from the second structure by a first gap, has a chamber and an input passage and an output passage both communicating with the chamber. The compensator is disposed in the chamber. A compensating passage, communicating with the input passage and the output passage, is formed between the body and the compensator. A pressurized fluid flows from the input passage to the output passage through the compensating passage, and the pressurized fluid in the output passage flows to the first gap to maintain the stability and the rigidity for the relative movement between the first and second structures. A hydrostatic bearing module using the hydrostatic bearing is also disclosed.

    摘要翻译: 主动/自感补偿静压轴承设置在第一和第二结构之间以允许第一和第二结构之间的相对运动。 静压轴承包括主体和补偿器。 固定到第一结构体并且与第二结构分离的主体具有第一间隙,具有腔室和输入通道以及与腔室连通的输出通道。 补偿器设置在腔室中。 在主体和补偿器之间形成有与输入通道和输出通道连通的补偿通道。 加压流体从输入通道流经通过补偿通道的输出通道,并且输出通道中的加压流体流到第一间隙,以保持第一和第二结构之间的相对运动的稳定性和刚性。 还公开了一种使用静压轴承的静压轴承组件。

    Bearing element and hydrostatic bearing
    54.
    发明申请
    Bearing element and hydrostatic bearing 审中-公开
    轴承元件和静压轴承

    公开(公告)号:US20060098904A1

    公开(公告)日:2006-05-11

    申请号:US11125928

    申请日:2005-05-10

    申请人: Christoph Link

    发明人: Christoph Link

    IPC分类号: F16C32/06

    摘要: The invention relates to a bearing element (1, 1.1, 1.2) having at least one primary sliding surface (4) for supporting at least one secondary sliding surface (5) of an element (2) and having at least one primary bearing surface (6) for its own mounting on a secondary bearing surface (7) of a bearing (8), at least two lubrication pockets (9.1, 9.2) being arranged in the region of the sliding surfaces (4, 5) and at least two bearing pockets (10.1, 10.2) being arranged in the region of the bearing surfaces (6, 7), to which at least one fluid (11) can be applied via channels (K9.1, K9.2, K10.1, K10.2) during operation, in such a way that in each case a hydrostatic gap (12.1, 12.2) can be formed between the sliding surfaces (4, 5) and between the bearing surfaces (6, 7). The invention is defined in that the respective lubrication pocket (9.1, 9.2) of the preferably primary sliding surface (4) is connected by means of at least one respective fluid connecting line (K10.1, K10.2) to the bearing pocket (10.1, 10.2), arranged in or counter to the direction of action (W4), of the preferably primary bearing surface (6), and in that the bearing pockets (10.1, 10.2) of the preferably primary bearing surface (6) are connected via the preferably secondary bearing surface (7), in each case by means of at least one fluid feed line (K9.1, K9.2), to a fluid pressure source (13, 13.1, 13.2) which can preferably be regulated/controlled.

    摘要翻译: 本发明涉及一种具有至少一个主滑动表面(4)的支承元件(1,1,1.2),用于支撑元件(2)的至少一个次级滑动表面(5),并具有至少一个主轴承表面 6),其自身安装在轴承(8)的次级轴承表面(7)上,至少两个润滑槽(9.1,9.2)布置在滑动表面(4,5)的区域中,并且至少两个轴承 口袋(10.1,10.2)布置在支承表面(6,7)的区域中,在操作期间可以经由通道(K 9.1,K 9.2,K 10.1,K 10.2)施加至少一个流体(11) ,使得在每种情况下,可在滑动表面(4,5)之间和支承表面(6,7)之间形成流体静力间隙(12.1,12.2)。 本发明的限定在于,优选主滑动表面(4)的相应的润滑腔(9.1,9.2)通过至少一个相应的流体连接线(K 10.1,K 10.2)连接到轴承腔(10.1, 优选主要支承表面(6)布置在或相对于动作方向(W 4)),并且优选主要支承表面(6)的轴承凹口(10.1,10.2)经由 在每种情况下,通过至少一个流体供给管线(K 9.1,K 9.2)将优选的次级支承表面(7)提供给可以优选地被调节/控制的流体压力源(13,13.1,13.2)。

    Regulator for adjusting the fluid flow in a hydrostatic or aerostatic device
    55.
    发明授权
    Regulator for adjusting the fluid flow in a hydrostatic or aerostatic device 有权
    用于调节流体静力或空气静力装置中的流体流量的调节器

    公开(公告)号:US06276491B1

    公开(公告)日:2001-08-21

    申请号:US09486622

    申请日:2000-02-29

    申请人: Robert Schönfeld

    发明人: Robert Schönfeld

    IPC分类号: F16C3206

    摘要: A controller for controlling a medium flow fed from a supply to at least one hydrostatic or aerostatic pocket of a bearing, a threaded spindle nut or a guide, having a housing and having pressure chambers which are separated by a control element, movable against the force of a spring element, and of which a first pressure chamber, subjected to a first pressure level, is directly connected to the medium supply, a second pressure chamber, subjected to a lower, second pressure level, is connected to the medium supply via a first flow resistance, and a third pressure chamber, which is subjected to a third pressure level which corresponds to that in the pocket, is connected to the pocket, a control element forming a variable second flow resistance is arranged between the second and third pressure chambers influencing the medium flow to the pocket and whose magnitude is raised by the action of the force of the first pressure chamber but is lowered by the action of the spring force and by the actions of the forces of the second and third pressure chambers. The housing has a bearing surface, comprising a passage orifice for the medium flow, with the aid of which the controller bears against a mating surface assigned to the bearing, the threaded spindle nut or the guide, thus creating a direct medium connection between controller and pocket and/or medium supply.

    摘要翻译: 一种控制器,用于控制从供应源供给到至少一个轴承的静液压或空气静压袋的介质流,螺纹主轴螺母或导向件,其具有壳体并具有由控制元件隔开的压力室,可抵抗力 其中第一压力室经受第一压力水平直接连接到介质供应,经受较低的第二压力水平的第二压力室经由一个第二压力室经由一个 第一流量阻力和第三压力室,其经受与袋中相同的第三压力水平连接到袋,在第二和第三压力室之间设置形成可变第二流动阻力的控制元件 影响介质流到口袋,其大小由于第一压力室的力的作用而升高,但是由于弹簧力的作用而降低 第二和第三压力室的力的作用。 壳体具有轴承表面,其包括用于介质流动的通道孔,借助于此,控制器抵靠着分配给轴承的配合表面,螺纹主轴螺母或引导件,从而在控制器和控制器之间形成直接介质连接 口袋和/或中等供应。

    Axial vibration damping arrangement
    56.
    发明授权
    Axial vibration damping arrangement 失效
    轴向振动阻尼布置

    公开(公告)号:US5578881A

    公开(公告)日:1996-11-26

    申请号:US313600

    申请日:1994-09-29

    摘要: A damping arrangement (FIG. 1) for axial vibrations in a turbomachine shaft 10 comprises at least one circumferentially extending annular damping chambers 34 and 35 open towards a shaft thrust face 19.sub.A and 19.sub.B of a radially extending collar 20 and to which gas is supplied alternately by gas flow controllers 42.sub.A and 42.sub.B. Each controller contains fluidic devices switched by sensing pressures in radially displaced pressure sensing chambers 51, 53, or even the same chambers, as such pressure are modulated by the variations in shaft and collar position, to divert the gas from source 40. The diversion of gas flow is arranged to cause pressure fluctuations, which exert axial thrust on the thrust faces, advanced in phase to approach of the shaft so as to damp the vibration. The fluidic devices may be implemented by flow amplifiers 47.sub.A, 47.sub.B or fluid logic flip flop 61 (FIG. 2) and may be multistage devices to increase gain, all of which may be formed without moving parts and embedded in the housing. Flow diversion may be effected by other forms of sensing, such as leakage from a nozzle facing the shaft. The arrangement may be combined with, or serve as, a gas seal or be part of a bearing arrangement.

    摘要翻译: 用于涡轮机械轴10中的轴向振动的阻尼装置(图1)包括至少一个周向延伸的环形阻尼室34和35,其朝径向延伸的套环20的轴推动面19A和19B开口,并且交替地供应气体 由气体流量控制器42A和42B。 每个控制器包含通过感测径向移动的压力感测室51,53或甚至相同的室中的压力而切换的流体装置,因为这种压力由轴和套环位置的变化调制,以使来自源40的气体转移。 气流被布置成引起压力波动,其在推力面上施加轴向推力,相位前进到轴接近以便阻尼振动。 流体装置可以由流量放大器47A,47B或流体逻辑触发器61(图2)实现,并且可以是增加增益的多级装置,所有这些装置可以在没有移动部件并且嵌入壳体中的情况下形成。 流动分流可以通过其它形式的感测来实现,例如从面向轴的喷嘴泄漏。 该装置可以与气体密封件组合或用作气体密封件,或者是轴承装置的一部分。

    High speed hydrostatic spindle design
    57.
    发明授权
    High speed hydrostatic spindle design 失效
    高速静液压主轴设计

    公开(公告)号:US5466071A

    公开(公告)日:1995-11-14

    申请号:US209384

    申请日:1994-03-10

    申请人: Alexander Slocum

    发明人: Alexander Slocum

    IPC分类号: F16C29/02 F16C32/06 F16C37/00

    摘要: A novel means for the design of the pockets of a hydrostatic spindle and the flow supply, collection, and pocket injection means to allow for very high speed rotation with a minimum of heat generation, mid maximum load capacity; furthermore the concept of self compensation is used to make the design insensitive to contaminants and thereby allow for the use of water based hydrostatic fluids, whereas the design of the compensator region is also advanced to facilitate high speed use. Accordingly, the present invention allows designers to increase the allowable speed and accuracy of rotary motion hydrostatic bearings. Design methodologies are presented for designing self compensating hydrostatic bearing spindle pockets and compensators to minimize the effects variation in stiffness with angular position, cavitation in bearing pockets, and turbulent shear power generation. Although it may seem that these are unrelated effects, the design solutions required substantially overlap and are thus presented together here. The primary issue in all of the design advancements is that the flow must be kept from separating, which will induce cavitation. This will result in wear and erosion of the bearing surfaces which will lead to bearing failure. Cavitation is prevented by the use of gently changing shapes, and the introduction of pressure at locations in the bearing where left to itself, the flow would separate and create a low pressure cavitating region.

    摘要翻译: 一种用于设计静液压主轴和流量供应,收集和口袋注射装置的袋的新颖方式,以允许以最小的发热,中等最大负载能力进行非常高的速度旋转; 此外,自补偿的概念用于使设计对污染物不敏感,从而允许使用基于水的静液体流体,而补偿器区域的设计也是进步的,以便于高速使用。 因此,本发明允许设计者增加旋转运动静压轴承的容许速度和精度。 设计方法用于设计自补偿静液压轴承主轴槽和补偿器,以最小化刚度与角位置,轴承腔中的气蚀和湍流剪切发电的影响变化的影响。 尽管看起来这些都是无关紧要的,但是设计解决方案需要大体上重叠,因此在这里呈现在一起。 所有设计进展的主要问题是流动必须保持分离,这将引起气蚀。 这将导致轴承表面的磨损和磨损,这将导致轴承故障。 通过使用轻微变化的形状来防止气蚀,并且在留在自身的轴承的位置处引入压力,流动将分离并产生低压气蚀区域。

    Static pressure gas bearing with throttling control valve in housing
    58.
    发明授权
    Static pressure gas bearing with throttling control valve in housing 失效
    带壳体节流控制阀的静压气体轴承

    公开(公告)号:US5064297A

    公开(公告)日:1991-11-12

    申请号:US658777

    申请日:1991-02-21

    IPC分类号: F16C32/06

    CPC分类号: F16C32/0648 F16C32/0659

    摘要: A static pressure gas bearing is incorporated in a housing wherein a slotted groove with a small volume and a throttling control valve are positioned close together. Compressed gas is injected onto the bearing surface from the slotted groove. This configuration provides a static pressure gas bearing in which it is difficult to develop self-induced vibration.

    摘要翻译: 静压气体轴承结合在壳体中,其中具有小体积的开槽凹槽和节流控制阀紧靠在一起。 压缩气体从开槽槽注入轴承表面。 这种结构提供了一种静压气体轴承,其中难以产生自身引起的振动。

    Self regulating hydrostatic pad bearings
    59.
    发明授权
    Self regulating hydrostatic pad bearings 失效
    自调节静压垫轴承

    公开(公告)号:US4540221A

    公开(公告)日:1985-09-10

    申请号:US498454

    申请日:1983-05-26

    申请人: Hugh I. Frazer

    发明人: Hugh I. Frazer

    IPC分类号: F04B1/20 F04B1/32 F16C32/06

    摘要: A hydrostatic pad or slipper bearing that is hydrostatically balanced to provide a substantially frictionless bearing with negligible fluid leakage, for supporting a moving part, in which there is a stationary housing in a cylindrical recess in which is mounted a bearing pad movable in the recess and surrounded by a liquid seal, the outward face of the pad being shaped to bear on the moving part to be supported and having a recessed area in its outward face which is defined by sealing land. A passage through the pad provides a communication between the inward face of the pad and the recessed area. Within the housing is a cylindrical cavity containing a valve assembly which is connected in a manner that is free of back lash to the pad so that the valve moves with the pad. The cylindrical cavity is supplied with liquid under pressure the entry of which is controlled by the valve and also with a passage leading to an area of lower of pressure. The novel feature of the construction lies in the fact that the cylindrical recess and the pad are of substantially uniform diameter through the lengths so that the pad is supported against lateral movement by the wall of the recess at a point close to the moving part and in that the effective hydrostatic area of the inward face of the pad is substantially equal to the effective hydrostatic area of the outward face of the pad plus the effective hydrostatic area of the valve subject to the pressure acting on the inward face of the pad, the valve assembly being hydrostatically balanced within itself with respect to the input pressure so that the whole pad and valve assembly are hydrostatically balanced. This arrangement guards against the leading edge of the pad digging into the moving part and also permits the use of a large diameter poppet valve.

    摘要翻译: 静压垫或滑动轴承,其静压平衡以提供具有可忽略的流体泄漏的基本上无摩擦的轴承,用于支撑移动部件,其中在圆柱形凹部中存在固定的壳体,其中安装有可在凹部中移动的轴承垫, 由液体密封件包围,垫的外表面被成形为承载在待支撑的移动部件上,并且在其外表面具有由密封区限定的凹陷区域。 通过垫的通道提供垫的内表面和凹陷区域之间的连通。 在壳体内部是圆柱形腔体,其包含阀组件,该阀组件以无衬垫的方式连接,使阀门与垫片一起移动。 在压力下为圆柱形空腔供应液体,其中阀门的入口由阀门控制,还有通向压力较低区域的通道。 该结构的新颖特征在于,圆柱形凹部和垫片通过长度具有基本均匀的直径,使得垫片在靠近移动部件的位置处被凹部的壁支撑成横向移动,并且在 垫的内表面的有效静水面积基本上等于垫的外表面的有效静水面积加上受到作用在垫的内表面上的压力的阀的有效静液压面积,阀 组件在其自身内相对于输入压力进行流体静力平衡,使得整个衬垫和阀组件被水力平衡。 这种布置防止了垫片的前缘进入移动部件,并且还允许使用大直径提升阀。

    Servo control system
    60.
    发明授权
    Servo control system 失效
    伺服控制系统

    公开(公告)号:US4193644A

    公开(公告)日:1980-03-18

    申请号:US890908

    申请日:1978-03-28

    摘要: A servo control system which can automatically control a position of a hydrostatically supported member such as a table of a machine tool, rotary shaft or the like is disclosed. The system comprises a closed loop control system including a differential amplifier for effecting a subtraction operation between an amount of displacement of a member and an amount of reference signal and a servo amplifier delivering a control signal and a servovalve for supplying operating pressure upon receipt of the control signal to the member, whereby the position of the member is controlled by the pressure applied thereto.

    摘要翻译: 公开了一种能够自动控制诸如机床,旋转轴等的静电支撑构件的位置的伺服控制系统。 该系统包括闭环控制系统,其包括差分放大器,用于在部件的位移量与参考信号量之间进行减法运算,以及传送控制信号的伺服放大器和用于在接收到运算压力时提供运行压力的伺服阀 控制信号到构件,从而通过施加到构件的压力来控制构件的位置。