Pneumatic actuator
    1.
    发明申请
    Pneumatic actuator 有权
    气动执行器

    公开(公告)号:US20050081711A1

    公开(公告)日:2005-04-21

    申请号:US10506157

    申请日:2003-02-17

    摘要: The pneumatic actuator of the invention is constructed from a plate (1) that is for example level and is secured in a reference system (9). On the one side of the plate (1), a first web (2) of a highly resistant and poorly extensible woven textile is secured such as by gluing alongside several strips (3). A second web (4), which is preferably made from the same material, is applied to the first web (2) and connected to the first web (2) along the strips (3). Between the strips (3), bladders (7) made of an elastic plastic material are inserted in the loose portions of the first and the second web (2, 4), said bladders being closed on both sides and comprising one valve (8) each. The bladders (7) can be pressurized with compressed gas through said valves (8). This causes the second web (4) to arch, the thus generated forces effecting onto the plate (1) a bending moment that causes the latter to laterally bend away.

    摘要翻译: 本发明的气动致动器由例如水平的板(1)构成并固定在参考系(9)中。 在板(1)的一侧上,例如通过粘合在几个条(3)上来固定高度耐力且不可扩展的织造织物的第一纤维网(2)。 优选地由相同材料制成的第二纤维网(4)被施加到第一纤维网(2)并且沿条带(3)连接到第一纤维网(2)。 在条(3)之间,由弹性塑料材料制成的囊(7)插入在第一和第二织物(2,4)的松散部分中,所述囊在两侧封闭并且包括一个阀(8) 每。 气囊(7)可用压缩气体通过所述阀(8)加压。 这使得第二腹板(4)拱起,由此产生的力影响板(1)一个弯曲力矩,导致后者侧向弯曲。

    Method for reducing the piston speed, especially in the piston and
cylinder assemblies of an excavating machine, and device for carrying
out the method
    3.
    发明授权
    Method for reducing the piston speed, especially in the piston and cylinder assemblies of an excavating machine, and device for carrying out the method 失效
    用于降低活塞速度的方法,特别是在挖掘机的活塞和气缸组件中,以及用于执行该方法的装置

    公开(公告)号:US4896582A

    公开(公告)日:1990-01-30

    申请号:US216542

    申请日:1988-07-08

    摘要: The invention relates to a method and a device for reducing the piston speed in a piston and cylinder assembly (1), as the piston approaches the end position. The piston end position is sensed, and a signal is generated for starting the end position dampening. Dampening is effected in two steps. In the first step (14), a time delay is provided and in the next step (15), the actual braking (retardation) of the piston is effected.The invention also comprises an electronic braking device comprising a dampening activation unit (13) which is connected to transducers (6), a braking delay unit (14) connected to the unit (13) and also to the control lever (5) at issue and a reference signal source, as well as a braking unit (15) connected to the delay unit (14) and adapted, upon activation, to provide a signal (U) to a setting system (3) for controlling the supply of pressure fluid to the piston and cylinder assembly (1).

    摘要翻译: PCT No.PCT / SE86 / 00003 Sec。 371日期:1988年9月8日 102(e)日期1988年9月8日PCT提交1986年1月8日PCT公布。 公开号WO87 / 04220 日期1987年7月16日。本发明涉及一种当活塞接近终点位置时减小活塞和气缸组件(1)中的活塞速度的方法和装置。 感测到活塞的最终位置,并产生一个信号以启动末端位置的衰减。 阻尼在两个步骤中实现。 在第一步骤(14)中,提供时间延迟,并且在下一步骤(15)中,实现活塞的实际制动(延迟)。 本发明还包括电子制动装置,其包括连接到换能器(6)的阻尼激活单元(13),连接到所述单元(13)的制动延迟单元(14)以及所述控制杆(5) 以及参考信号源,以及连接到延迟单元(14)并且在激活时适于向设定系统(3)提供信号(U)的制动单元(15),用于控制压力流体的供应 到活塞和气缸组件(1)。

    Fluid arrangement
    4.
    发明授权
    Fluid arrangement 失效
    流体排列

    公开(公告)号:US4230019A

    公开(公告)日:1980-10-28

    申请号:US959781

    申请日:1978-11-13

    摘要: A fluid arrangement for the alternating operation of an apparatus includes a working cylinder with a working piston endowed with an alternating movement and a control cylinder with an alternatingly moving control piston. Each of the cylinders has for the respective piston a driving chamber which is alternately connected to a supply source of fluid under pressure and to a discharge opening for the fluid through a distributor, and a return chamber permanently connected to the supply source of fluid under pressure. The distributor connected to the driving chamber in the working cylinder is the control cylinder, and the distributor connected to the driving chamber in the control cylinder is the working chamber.

    摘要翻译: 用于交替操作设备的流体装置包括具有赋予交替运动的工作活塞的工作缸和具有交替移动的控制活塞的控制缸。 每个气缸具有用于相应活塞的驱动室,该驱动室交替地连接到压力下的流体供应源,并且通过分配器连接到用于流体的排放开口,以及在压力下永久连接到流体供应源的返回室 。 连接到工作缸中的驱动室的分配器是控制缸,并且连接到控制缸中的驱动室的分配器是工作室。

    Integrated transmission-engine control
    5.
    发明授权
    Integrated transmission-engine control 失效
    集成传动引擎控制

    公开(公告)号:US4102131A

    公开(公告)日:1978-07-25

    申请号:US794094

    申请日:1977-05-05

    摘要: An integrated transmission-engine control for a transmission, such as a hydrostatic transmission having a variable displacement unit connectable to an engine and a second displacement unit connected to an output shaft, including fluid pressure-operated ratio governor means for the transmission, fluid pressure-operated means for controlling the supply of fuel to an engine, a power demand valve for converting a particular power demand to a particular fluid pressure primary control signal. The primary control signal is applied to the ratio governor means in opposition to a signal representing engine speed to set the transmission ratio for a desired engine speed and also applied to the fuel supply controlling means to establish a fuel setting to match engine horsepower to engine speed for minimum fuel consumption.

    摘要翻译: 一种用于变速器的集成式变速器发动机控制,例如具有可连接到发动机的可变排量单元的静液压变速器和连接到输出轴的第二排量单元,包括用于变速器的流体压力调节比调速器装置, 用于控制向发动机供应燃料的操作装置,用于将特定功率需求转换为特定流体压力主控制信号的功率需求阀。 主控制信号被施加到比率调节器装置上,与代表发动机转速的信号相对应,以将传动比设置为期望的发动机转速,并且还施加到燃料供给控制装置以建立燃料设定以匹配发动机功率与发动机转速 用于最低油耗。

    Device for controlling a movable member on a machine tool
    6.
    发明授权
    Device for controlling a movable member on a machine tool 失效
    用于控制机床上的可移动部件的装置

    公开(公告)号:US3982417A

    公开(公告)日:1976-09-28

    申请号:US645882

    申请日:1975-12-31

    申请人: Paul Cailloux

    发明人: Paul Cailloux

    摘要: This hydraulic system for controlling and driving a movable member in a machine tool, for example the movable apron performing sheet-metal bending or shearing operations, comprises a single distributor incorporating a slide valve responsive either to a push member manually actuated by the operator of the machine or to another push member responsive in turn to a mechanical device actuated by one or a plurality of separate control members associated with said movable member or the like for automatically changing the speed of said movable member and stopping same at the end of its stroke.

    摘要翻译: 用于控制和驱动机床中的可移动部件的液压系统,例如执行金属板弯曲或剪切操作的可移动围裙,包括单个分配器,其包括滑动阀,其响应于由操作者手动致动的推动构件 机器或另一个推动构件,其依次响应于由与所述可移动构件等相关联的一个或多个分离的控制构件致动的机械装置,用于自动改变所述可移动构件的速度并在其行程结束时停止。

    Hydraulic piston-cylinder device having means for permitting limited reciprocating motion
    7.
    发明授权
    Hydraulic piston-cylinder device having means for permitting limited reciprocating motion 失效
    液压活塞式装置具有允许有限公司进行运动的手段

    公开(公告)号:US3853368A

    公开(公告)日:1974-12-10

    申请号:US34792673

    申请日:1973-04-04

    申请人: ALLIED POWER INC

    发明人: EICHELSHEIM A

    摘要: A double-acting regeneratively controlled piston-cylinder device or tilt cylinder for tilting a spring-supported truck cab relative to the truck chassis to permit access to the truck engine positioned below the cab embodies means therein which enable slight relative reciprocating movement of the piston and cylinder from an ''''at rest'''' position in response to slight relative bouncing movement of the cab with respect to the chassis as the truck operates over-the-road. The piston-cylinder device is of the double-acting type and embodies means to provide an oil passage around the piston over part of the piston stroke. The oil passage may take the form of a concentric chamber, an eccentric chamber, a helical groove, or a longitudinal groove, each formed in the cylinder wall or may be a separate tube on the cylinder for by-passing the piston. Relative piston-cylinder motion results because, if the piston is pushed inwardly of the cylinder by cab bounce, oil can escape from the base end of the cylinder via the passage to the rod end of the cylinder. Or, if the piston is pulled outwardly of the cylinder by cab bounce, oil can flow from the rod end of the cylinder via the passage to the base end of the cylinder.

    摘要翻译: 用于使弹簧支撑的卡车驾驶室相对于卡车底盘倾斜以允许进入位于驾驶室下方的卡车发动机的双作用的再生控制的活塞缸装置或倾斜缸体,其中装置能够使活塞轻微的相对往复运动和 响应于当卡车在道路上行驶时驾驶室相对于底盘的轻微的相对弹跳运动,从“静止”位置的气缸。 活塞缸装置是双作用装置,并且体现了在活塞冲程的一部分上提供围绕活塞的油通道的装置。 油通道可以采用形成在气缸壁中的同心腔,偏心腔,螺旋槽或纵向凹槽的形式,或者可以是用于旁路活塞的单独的管。 相对活塞缸运动的结果是,如果活塞通过驾驶室反弹被推向气缸内部,则油可以通过通向气缸的杆端的通道从气缸的底端排出。 或者,如果活塞通过驾驶室反弹被拉向气缸外部,则油可以通过通道从气缸的杆端流到气缸的基端。

    Cylinder with two concentric pistons actuated by a pressure medium and
extending to three times the length of the cylinder
    8.
    发明授权
    Cylinder with two concentric pistons actuated by a pressure medium and extending to three times the length of the cylinder 失效
    具有由压力介质致动并延伸到气缸长度的三倍的两个同心活塞的气缸

    公开(公告)号:US4991493A

    公开(公告)日:1991-02-12

    申请号:US303762

    申请日:1989-01-23

    申请人: Matti N. Luojus

    发明人: Matti N. Luojus

    CPC分类号: F15B15/16

    摘要: The invention concerns a cylinder-piston combination actuated by a pressure medium, comprising an outstretched cylinder space (1) and a two-part piston assembly (3, 8) movable in opposite directions in the longitudinal direction of the cylinder space (1). The piston rod (6) of the first part (3) of the piston assembly is of a tubular construction. The first part (3) is provided with a sealing between the piston (4) and the inner surface (2) of the cylinder space (1). The cylinder space (1) is provided with a connection (27) through which the pressure medium can be passed into the space (31) limited by the cylinder space (1) and the outer surface of the first part (3). The second part (8) is constructed to dimensions allowing it to fit inside the first part (3) and arranged to be movable relative to the latter. The combination includes an auxiliary piston (14) fitted around the piston rod (13) of the second part and sealed relative to the inner surface (2) of the cylinder space (1). The cylinder space is provided with a connection (25) permitting the passage of the pressure medium into the space (29) limited by the cylinder space (1) and the auxiliary piston end face (20) facing away from the first part (3). The cylinder space (1) is provided with another connection (26) permitting the passage of the pressure medium to the auxiliary piston end face (21) facing towards the first part (3) when the piston (9) of the second part (8) is in engagement with the auxiliary piston (14).

    摘要翻译: PCT No.PCT / FI88 / 00075 Sec。 371日期1989年1月23日 102(e)日期1989年1月23日PCT提交1988年5月18日PCT公布。 公开号WO88 / 09441 日本公报1988年12月1日。本发明涉及一种由压力介质致动的气缸 - 活塞组合件,包括伸出的气缸空间(1)和两部分活塞组件(3,8),两个活塞组件可沿纵向方向 气缸空间(1)。 活塞组件的第一部分(3)的活塞杆(6)是管状结构。 第一部分(3)在活塞(4)和气缸空间(1)的内表面(2)之间设置有密封。 气缸空间(1)设置有连接件(27),压力介质可以通过该连接件进入由气缸空间(1)限定的空间(31)和第一部件(3)的外表面。 第二部分(8)被构造成允许其适配在第一部分(3)内并且布置成相对于第一部分(3)可移动的尺寸。 该组合件包括安装在第二部分的活塞杆(13)周围并相对于气缸空间(1)的内表面(2)密封的辅助活塞(14)。 气缸空间设置有允许压力介质通过由气缸空间(1)和辅助活塞端面(20)限制的空间(29)的连接(25),该空间(29)背离第一部分(3) 。 当第二部分(8)的活塞(9)与第二部分(8)的活塞(9)相对时,气缸空间(1)设置有允许压力介质通向辅助活塞端面(21) )与辅助活塞(14)接合。

    Fluid-flow isolation and control apparatus and method
    9.
    发明授权
    Fluid-flow isolation and control apparatus and method 失效
    流体流动隔离和控制装置及方法

    公开(公告)号:US4694860A

    公开(公告)日:1987-09-22

    申请号:US826022

    申请日:1986-02-04

    申请人: Paul G. Eidsmore

    发明人: Paul G. Eidsmore

    摘要: Fluid-flow control apparatus and method are disclosed by which magnetically-positionable elements within a rigid body can be externally manipulated using a controlling source of magnetic flux. The relative attractive forces which bias internal magnetic elements into normally-closed sealing engagement are substantially altered by repositioning the magnetic elements in response to the controlling magnet flux. Complete sealing or isolation against back flow through the valve under conditions of net positive outlet pressure is inhibited by the internal double-acting sealing elements which respond in unified manner to the controlling magnetic flux.

    摘要翻译: 公开了一种流体控制装置和方法,通过该流体控制装置和方法可以使用磁通量的控制源在外部操纵刚体内的可磁性定位元件。 通过响应于控制磁通量重新定位磁性元件,将内部磁性元件偏置成常闭密封接合的相对吸引力基本上改变。 在净正出口压力的条件下,通过阀门的反向流动的完全密封或隔离被内部双重作用的密封元件抑制,这些内部双作用密封元件以一致的方式响应于控制磁通量。

    Apparatus and methods for tensioning cables
    10.
    发明授权
    Apparatus and methods for tensioning cables 失效
    拉伸电缆的装置和方法

    公开(公告)号:US3844023A

    公开(公告)日:1974-10-29

    申请号:US28841572

    申请日:1972-09-12

    申请人: SURRIBAS J MORELL J

    发明人: SURRIBAS J MORELL J

    摘要: A hydraulic jack is disclosed for simultaneously tensioning a plurality of reinforcing cables anchored to a structure by means of an anchor plate and anchor wedges seated in corresponding seats in the anchor plate. An aligning template is provided for aligning the cables with a tensioning head assembly in the jack, thereby facilitating placement of the jack on the cables. The tensioning head assembly includes a gripping plate having a bore for each cable with each bore having a wedge-shaped seat to receive gripping jaws biased towards the seat. The assembly further includes an unclamping plate, mounted in one embodiment for movement with the gripping plate, provided for dislodging the gripping jaws from their seats to release the cables after tensioning. The tensioning head assembly is mounted at one end of an hydraulically actuated plunger and is urged away from the structure to seat the gripping jaws about the cables and thereafter tension the cables. An hydraulically actuated striker assembly operates to seat the anchor wedges in the anchor plate after tensioning is completed. In one embodiment, the aligning template is received within the front end of the jack and serves as a striker plate in transmitting the seating force from the striker assembly to the anchor wedges.

    摘要翻译: 公开了一种液压千斤顶,用于通过锚定板锚固在结构上并同时张紧多个加固缆索,锚固楔位于锚板中相应的座中。 提供了对准模板,用于将电缆与插座中的张紧头组件对准,从而便于将插孔放置在电缆上。 张紧头组件包括夹板,其具有用于每个电缆的孔,每个孔具有楔形座,以容纳朝向座偏置的夹爪。 组件还包括一个松紧板,其安装在一个实施例中,用于与夹持板一起移动,用于将夹爪从其座位上移走,以在张紧之后释放电缆。 张紧头组件安装在液压致动的柱塞的一端,并被推离离结构以将夹爪安置在电缆周围,然后拉紧电缆。 液压致动的撞击器组件操作以在张紧完成之后将锚定楔定位在锚板中。 在一个实施例中,对准模板被容纳在千斤顶的前端内,并且用作撞击板,用于将来自撞击器组件的就座力传递到锚楔。