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公开(公告)号：US4976821A
公开(公告)日：1990-12-11
申请号：US427740
申请日：1989-10-26
申请人： Jorma Laapotti
发明人： Jorma Laapotti
摘要： A press section in a paper machine includes, in the direction of web run, two successive, separate press nips for dewatering a web, the web passing between the nips in a closed draw. The first nip is formed between two, preferably hollow-faced, press rolls. The press section includes a first fabric which picks up the web from the forming wire. The press section comprises at least three fabrics of which one acts as a press fabric in the first press nip and another acts as a press fabric and/or as a transfer fabric both in the first as well as in the second nip. The web is transferred from the last press nip of the press section to the drying section. The last press nip is formed by an extended-nip press and has a nip zone with a length substantially longer than the length of the press zone of the preceding roll nip. The web runs through the nip zone of the extended-nip press so that it is supported on one side by a substantially non-water receiving transfer fabric, the other side of the web being pressed by a water-receiving press fabric. The web is substantially immediately detached from the water-receiving press fabric after passing through the extended nip zone and is passed to the drying section.
摘要翻译： 纸机中的压榨部分包括两个连续的单独的压榨夹，用于使纸幅脱水，纸幅在封闭的抽出之间通过夹头之间。 第一压区形成在两个，优选中空面的压辊之间。 压榨部包括从成形网中拾取纸幅的第一织物。 压榨部分包括至少三种织物，其中一种在第一压榨压区中用作压榨织物，另一种织物在第一和第二压区中用作压榨织物和/或作为转印织物。 纸幅从压榨部的最后一个压榨区转移到干燥部。 最后的压榨压区由延伸压区压力机形成，并且具有一个长度大大长于先前辊压区压区的长度的压区。 幅材穿过延伸压区压区的压区，使得其通过基本上非水接收的转印织物在一侧支撑，幅材的另一侧被受水压织物织物压制。 在通过延伸的夹持区域之后，幅材基本上立即与受水压榨织物分离，并且被传送到干燥部分。
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公开(公告)号：US4931143A
公开(公告)日：1990-06-05
申请号：US735947
申请日：1985-05-20
申请人： Mikko Karvinen , Jorma Laapotti
发明人： Mikko Karvinen , Jorma Laapotti
摘要： A press section of a paper machine includes, in the direction of web run, at least three successive, separate press nips for dewatering a web, the web passing between the nips in a closed draw. The web is dewatered in the first nip through both of its faces. The press section includes at least one upper fabric and lower fabrics, the first fabrics in the direction of web run being water-receiving fabrics arranged such that one of the first fabrics acts as a press fabric in the first nip while the other of the first fabrics acts as a press fabric both in the first as well as in the second nip. Of the second fabrics in the direction of web run, the upper fabric is a water-receiving press fabric while the second lower fabric is a substantially non-water receiving transfer fabric or belt on which the web is transferred from the third press nip to the following drying section as a closed draw. The third separate press nip comprises an extended-nip press, the length of the nip zone thereof being substantially larger than the lengths of the zones of the preceding roll nips. The web runs through the nip zone of the extended-nip press supported on its bottom side by the substantially non-water receiving transfer fabric, the upper water-receiving fabric being pressed against the other side of the web.
摘要翻译： 造纸机的压榨部分包括至少三个连续的单独的压榨辊，用于使纸幅脱水，纸幅在封闭的牵引中通过夹头之间。 纸幅通过其两个表面在第一辊隙中脱水。 压榨部分包括至少一个上部织物和下部织物，第一织物沿卷筒纸运行方向是水接收织物，其布置成使得第一织物中的一个织物在第一辊隙中起挤压织物的作用，而第一织物中的第一织物 织物在第一和第二压区中都起压力织物的作用。 在织物运行方向上的第二织物中，上织物是水接受压榨织物，而第二下织物是基本上非水接收的转移织物或带，其上幅材从第三压榨压区转移到 以下干燥段作为封闭抽油。 第三分开的压榨压区包括延伸压区压区，其压区的长度大致大于先前辊压区的长度。 纸幅通过基本上非水接收的转印织物在其底侧上延伸延伸压区印刷机的压区，上部接收水平的织物被压靠在幅材的另一侧上。
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公开(公告)号：USRE33138E
公开(公告)日：1990-01-02
申请号：US634062
申请日：1984-07-25
申请人： Vaino Sailas
发明人： Vaino Sailas
摘要： A roll manufacturing method and roll, particularly for paper machines, wherein an inner roll body is surrounded by a strip having circumferential portions such as windings which engage and extend outwardly from an exterior surface of the inner roll body with the successive windings or circumferential strip portions engaging each other so that the engaging side surfaces of successive strip turns define an interface between themselves. The side surfaces of the strip are formed with registering grooves which thus define a bore extending across the interface, and an elongated interlocking member is situated in the latter bore so as to interlock the successive turns or circumferential strip portions against radial displacement outwardly away from the inner roll body. The interlocking member preferably has a fluid-tight sealing engagement with the groove surfaces which define the bore which receives the interlocking member, so that the interlocking member also forms a moisture barrier.
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公开(公告)号：US4856154A
公开(公告)日：1989-08-15
申请号：US124256
申请日：1987-11-23
申请人： Osmo Nikulainen , Vesa Kainu
发明人： Osmo Nikulainen , Vesa Kainu
CPC分类号： F16C13/028 , B30B3/005 , D21G1/002 , D21G1/022
摘要： Method in a variable-crown roll in which hydraulic loading elements or a series of hydraulic loading elements are used. Such series of elements acts along a plane of a nip that can be formed between the variable-crown roll and a counter-roll thereof, with such elements or series being situated between a central axle of the roll and a cylindrical mantle which is rotatable about the central axle through radial bearings. The central axle is supported by axle journals thereof on deflection bearings. In the method, the central axle is pivoted about the deflection bearings thereof over an angle which is within a range of about 30.degree. to 180.degree.. By the effect of such pivoting, the variable-crown roll and the mantle thereof are shifted away from the nip, so that the nip is opened. This shifting is produced by the axis of pivoting of the deflection bearings being situated by a certain eccentricity distance further away from a nip line of the closed nip, than the axis of rotation of the roll mantle.
摘要翻译： 使用液压装载元件或一系列液压装载元件的可变冠辊中的方法。 这样的一系列元件沿着可以形成在可变顶辊和其相对辊之间的辊隙的平面上起作用，这些元件或系列位于辊的中心轴之间，并且可以围绕 中心轴通过径向轴承。 中心轴由转轴轴承的轴颈支撑。 在该方法中，中心轴围绕其偏转轴承以约30°至180°的范围内的角度枢转。 通过这种枢转的作用，可变冠辊及其外套从辊隙移开，从而打开辊隙。 该偏移由偏转轴承的枢转轴线与离开辊套的旋转轴线相距一定偏心距离进一步远离密闭压区的压区而产生。
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公开(公告)号：US4804441A
公开(公告)日：1989-02-14
申请号：US98538
申请日：1987-09-18
申请人： Markku Lyytinen
发明人： Markku Lyytinen
摘要： Method and apparatus in the headbox of a paper machine and in its approach pipe system. In the headbox, pulp suspension is fed through the approach pipe system and a pressure screen arrangement, if any, to a distributing header part, from which the pulp suspension flow is conducted through a turbulence generator section and further to a lip section. A pulp suspension jet is discharged from a lip aperture of the lip section onto a forming wire or into a throat defined by a pair of forming wires. At least part of the approach pipe system, the distribution header part, and the turbulence generator section are arranged to have two or several substantially parallel pulp suspension flow passages. The different passages operate substantially simultaneously in parallel, when the headbox has been set to operate in a higher flow rate range. One or several of the substantially parallel flow passages are completely closed after the turbulence generator section, when the headbox is being set to operate in a lower flow rate range. With the aid of the substantially parallel flow arrangement, the flow rate of the headbox has been arranged to be adjustable substantially in a range from maximum flow rate to minimum flow rate, in which a ratio of maximum flow rate/minimum flow rate is about 4.
摘要翻译： 造纸机流浆箱及其接近管道系统中的方法和设备。 在流浆箱中，纸浆悬浮液通过接近管道系统和压力筛布装置（如果有的话）被馈送到分配集管部分，纸浆悬浮液从该分配头部部分通过湍流发生器部分进一步传送到唇部。 纸浆悬浮射流从唇部的唇孔排出到成形网或由一对成形线限定的喉部中。 接近管道系统，分配头部分和湍流发生器部分的至少一部分布置成具有两个或几个基本平行的纸浆悬浮液流动通道。 当流浆箱已被设定为在更高的流速范围内操作时，不同的通道基本同时地并行运行。 当流浆箱被设置为在较低流量范围内操作时，在湍流发生器部分之后，一个或几个基本平行的流动通道完全关闭。 借助于基本上平行的流动布置，流浆箱的流量已被布置为可以基本上在从最大流速到最小流量的范围内调节，其中最大流量/最小流量的比率为约4 。
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公开(公告)号：US4804055A
公开(公告)日：1989-02-14
申请号：US98217
申请日：1987-09-18
申请人： Pentti Kostamo
发明人： Pentti Kostamo
CPC分类号： B62D49/02 , B62D49/065 , Y10S180/90
摘要： An attachment for a tractor comprises a frame which is demountable from the tractor, a hydraulic motor having a power take off shaft mounted on the frame, a pivotal attachment mounting for an upper link of a three point hitch, lifting arms pivotally mounted on the frame for raising and lowering the lower links of the three point hitch by means of swinging link arms connected between the lower links and the lifting arms, hydraulic rams mounted on the frame for raising and lowering the lifting arms, and respective releasable hydraulic couplings connected to the hydrulic motor and to the rams for connection to a hydraulic system of the tractor.
摘要翻译： 用于拖拉机的附件包括可从拖拉机拆卸的框架，具有安装在框架上的动力输出轴的液压马达，用于三点搭接的上连杆的枢转附接安装件，可枢转地安装在框架上的提升臂 用于通过连接在下连杆和提升臂之间的摆动连杆臂升高和降低三点搭接的下连杆，安装在框架上的用于升高和降低提升臂的液压柱塞以及连接到起重臂的相应的可释放液压联轴器 水力马达和用于与拖拉机的液压系统连接的公柱。
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7.发明授权Closed and compact press section of a paper machine with double S shaped path or mirror image thereof 失效具有双S形路径或其镜像的造纸机的封闭和紧凑的压榨部
公开(公告)号：US4792381A
公开(公告)日：1988-12-20
申请号：US96397
申请日：1987-09-11
申请人： Juhani Pajula
发明人： Juhani Pajula
IPC分类号： D21F3/04
CPC分类号： D21F3/04
摘要： A closed press section of a paper machine for removing water from the paper web passing therethrough. A compact press roll combination is provided with several press nips being formed in association with various rolls, and between which the web runs supported by roll surfaces without substantially long free draws. The press section comprises a first nip formed by two press suction rolls, through which two felts pass, the first felt functioning as a pick-up felt and moving the web from a pick-up point through the first press nip, and the second felt moving the web from the first nip to the second press nip of the press section. The second press nip is formed at a lower circumference of a smooth-surfaced, large diameter center roll, through which the second felt runs. Another smooth-surfaced, large diameter center roll is mounted in bearings and has a circumference located a short distance from the circumference of the first center roll, with a third press nip being formed at an upper circumference of the second center roll, and through which another press felt is guided. The web is detached from the smooth surface of the second center roll after the third press nip and is conveyed to the drying section of the paper machine. The paper web is essentially conveyed along a path shaped like an S or a mirror image thereof around the two center rolls, so that both sides of the web are pressed against a smooth surface of a respective center roll.
摘要翻译： 一种用于从通过其的纸幅去除水的造纸机的封闭压榨部。 紧凑的压榨辊组合设置有与各种辊相关联地形成的多个压榨辊隙，并且其间由辊表面支撑而不具有实质上长的自由拉伸。 压榨部分包括由两个压榨抽吸辊形成的第一辊隙，两个毛毡通过该第一辊隙，第一毛毡用作拾起毛毡，并且将幅材从拾取点移动通过第一压榨压区，并且第二毛毡 将幅材从第一压区移动到压榨部的第二压区。 第二压榨辊隙形成在光滑表面的大直径中心辊的下圆周上，第二毛毡通过该中心辊运行。 另一个光滑表面的大直径中心辊安装在轴承中，并且具有位于距离第一中心辊的圆周短的距离的圆周，在第二中心辊的上圆周处形成有第三挤压压区， 另一份新闻感受到指导。 纸幅在第三次压榨压区之后与第二中心辊的光滑表面分离，并被输送到造纸机的干燥部分。 纸幅基本上沿着两个中心辊周围形成为S或其镜像的路径传送，使得幅材的两侧被压靠在相应的中心辊的光滑表面上。
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公开(公告)号：US4792380A
公开(公告)日：1988-12-20
申请号：US130888
申请日：1987-12-10
申请人： Tapani Tuomikoski
发明人： Tapani Tuomikoski
IPC分类号： D21F1/02
摘要： Fastening of a profile bar to adjustment spindles at a discharge opening of a head box of a paper machine. A series of fastening holes or recesses are made into one edge of the profile bar and provided with chamferings. In the end of the adjustment spindles situated next to the discharge opening, a recess is provided with a series of screws being fitted in one side thereof. These screws are provided with ends coresponding to the chamferings in the fastening holes of the profile bar. A second set of screws coaxial with the first set of screws are provided in an outer wall of the recess, with inner ends of the second set of screws being provided with parts corresponding to the outer chamferings of the fastening holes in the profile bar. The inside or first set of screws can be locked in a position such that, when the profile bar is attached into connection with the inside screws by the holes and the chamferings thereof, a center plane of the profile bar coincides with an axial center plane of the adjustment spindles. The profile bar can be locked into position by the outside or second set of screws.
摘要翻译： 在造纸机头盒的排出口处将型材紧固到调节主轴上。 一系列紧固孔或凹槽被制成轮廓条的一个边缘并且具有倒角。 在位于排放口旁边的调节主轴的末端，设置有一系列螺钉安装在其一侧的凹部。 这些螺钉设置有与轮廓杆的紧固孔中的倒角对应的端部。 与第一组螺钉同轴的第二组螺钉设置在凹槽的外壁中，第二组螺钉的内端设置有与轮廓杆中的紧固孔的外倒角对应的部件。 内部或第一组螺钉可以被锁定在这样的位置，使得当型材杆通过孔和其倒角与内螺纹连接时，型材的中心平面与轴向中心平面重合 调整主轴。 轮廓杆可以通过外部或第二组螺钉锁定到位。
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公开(公告)号：US4757708A
公开(公告)日：1988-07-19
申请号：US26505
申请日：1987-03-17
申请人： Matti Hietaranta
发明人： Matti Hietaranta
CPC分类号： G01F1/30
摘要： The measuring device (2) comprises a sensing element (4) communicating with the process substance as well as a lever-like transfer element (7) connected with the sensing element and arranged to transfer the force acting on the sensing element and generated by the process substance to be measured to a measuring element (6) using the torque applied to the transfer element (7) about its fulcrum. The through hole (8) has a diaphragm (14) of elastic material covering the hole, being in engagement with the transfer member (7) in the position substantially perpendicular to the longitudinal axis thereof and acting as a sealing member separating the portion outside the process substance from the process substance. The diaphragm is mounted between two elastic gaskets (16) located in the side region of the through hole (8) in order to allow the free movement of the diaphragm in the direction of its main plane for eliminating tension forces applied to the diaphragm by the translation and the rotation of the transfer element (7) and causing measurement inaccuracy.
摘要翻译： 测量装置（2）包括与过程物质连通的感测元件（4）以及与传感元件连接的杆状转移元件（7），并被布置成传递作用在感测元件上并由 使用施加到转印元件（7）的其支点的扭矩将测量元件（6）测量的处理物质。 所述通孔（8）具有覆盖所述孔的弹性材料膜（14），所述隔膜（14）在大致垂直于所述传送构件（7）的纵向轴线的位置处与所述传送构件（7）接合，并且用作密封构件 过程物质的过程物质。 隔膜安装在位于通孔（8）的侧部区域中的两个弹性垫圈（16）之间，以便允许隔膜沿其主平面的方向自由移动，以消除施加到隔膜的张力 平移和转移元件（7）的旋转，并导致测量不准确。
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公开(公告)号：US4757586A
公开(公告)日：1988-07-19
申请号：US38222
申请日：1987-04-14
申请人： Juhani Niskanen
发明人： Juhani Niskanen
CPC分类号： F16C13/028 , D21G1/022
摘要： A glide shoe arrangement for a variable crown roll is disclosed. The roll comprises a fixed central axle on which a hollow cylindrical roll mantle is rotatably journalled. A series of piston-glide shoe arrangements are fitted along the length of the roll between the axle and the inner surface of the roll mantle and are adapted to be loaded by hydraulic pressure fluid so that each piston loads a corresponding glide shoe against the inner surface of the roll mantle to control the distribution of nip pressure in a nip formed by the variable crown roll and a counter roll. The piston-glide shoe arrangements are fitted in cylinder bores formed in the axle. Spherical surface bearings are fitted between the loading pistons and the glide shoes, the center of curvature or rotation of the bearing surfaces being located on the side of the glide shoe. A pin-shaped projection is fitted in the loading piston and extends through the spherical bearing. A sealing articulation arrangement is situated between the pin-shaped projection and either the glide shoe or a projection part attached to the glide shoe. The pressure fluid is passed through ducts from the loading space of the cylinder bore through the pin-shaped projection and into hydrostatic lubrication spaces on the glide shoe.
摘要翻译： 公开了一种用于可变冠辊的滑靴装置。 辊包括固定的中心轴，中空的圆柱形辊罩可旋转地安装在该中心轴上。 一系列活塞滑翔鞋装置沿着滚轴的长度装配在轴和辊罩的内表面之间，并且适于由液压流体加载，使得每个活塞将相应的滑动靴装载抵靠内表面 以控制由可变冠辊和对辊形成的辊隙中的辊隙压力的分布。 活塞滑翔鞋装置安装在形成在车轴上的气缸孔中。 球面表面轴承安装在装载活塞和滑动鞋之间，轴承表面的曲率中心或旋转位于滑动鞋的侧面。 销形突起装配在装载活塞中并延伸穿过球面轴承。 密封铰接装置位于销形突起和滑动靴或附接到滑动鞋的突出部之间。 压力流体通过管道从气缸孔的装载空间穿过销形突起并进入滑动鞋的静液压润滑空间。
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