Method for cylindrical grinding of rolls
    1.
    发明授权
    Method for cylindrical grinding of rolls 失效
    滚筒圆柱磨削方法

    公开(公告)号:US4800687A

    公开(公告)日:1989-01-31

    申请号:US62704

    申请日:1987-06-16

    IPC分类号: B24B5/04 D21G1/02 B24B1/00

    CPC分类号: B24B5/04 D21G1/022

    摘要: A roll assembly having a roll cylinder, a roll core and pressure transfer elements, which assembly is tightened for a grinding operation by applying hydraulic pressure through the pressure transfer elements and aligning the plane of the hydraulic overall pressure force to reduce to about zero the bearing play in the area of the contact line of the grinding wheel. The roll cylinder is mounted on the roll core through antifriction bearings, and in the finished apparatus, such as a calender, reduction of bearing play will compensate for wall thickness errors in the races of the antifriction bearings.

    摘要翻译: 具有辊筒,辊芯和压力传递元件的辊组件,该组件通过施加液压通过压力传递元件并将液压总压力平面对准以减小至约零轴承,用于磨削操作 在砂轮接触线的区域播放。 辊筒通过减摩轴承安装在卷芯上,在成品设备中,例如压延机,减少轴承间隙将补偿减摩轴承座圈的壁厚误差。

    Press roller with adjustable bowing means
    2.
    发明授权
    Press roller with adjustable bowing means 失效
    压辊具有可调弓形装置

    公开(公告)号:US4598448A

    公开(公告)日:1986-07-08

    申请号:US583246

    申请日:1984-02-24

    IPC分类号: D21G1/02 F16C13/00 B21B13/02

    CPC分类号: F16C13/028 D21G1/022

    摘要: A press roller is provided which permits adjustable bowing under load. The press roller has a hollow, rotatable roller casing through which a stationary cross head extends. A semi-circular pressure chamber is formed between the cross head and the roller casing. In this chamber, two annular pistons are provided which rest on one end surface of the inner surface of the roller casing and are guided in a sealing manner in recesses in the cross head. To prevent bending oscillations by the cross head, the annular pistons enclose substantially rigid fluid cushions which are isolated from one another.

    摘要翻译: 提供了一种压载辊,其允许在负载下可调节弯曲。 压辊具有中空的可旋转滚筒外壳,固定的十字头通过该外壳延伸。 在十字头和辊套之间形成半圆形压力室。 在该室中,设置有两个环形活塞,该环形活塞搁置在辊套的内表面的一个端面上,并以密封方式被引导到十字头中的凹槽中。 为了防止十字头的弯曲振动,环形活塞包围彼此隔离的基本上刚性的液体垫。

    Guide roll for a porous belt
    3.
    发明授权
    Guide roll for a porous belt 失效
    导向辊用于多孔带

    公开(公告)号:US5020242A

    公开(公告)日:1991-06-04

    申请号:US490835

    申请日:1990-03-08

    IPC分类号: F26B13/16 D21F5/02 D21F5/04

    CPC分类号: D21F5/046

    摘要: A guide roll for a porous belt, for instance for the drying wire of a paper machine, is described. A perforated roll shell rotates about a stationary air guide box. The guide box has two air chambers which extend across the length of the guide roll. One air chamber serves the discharge of blowing air and the other air chamber serves the intake and removal of suction air. Contained between the air guide box and the roll shell is an annular space in which a blowing zone and a suction zone are defined by longitudinal seals. Considering that blowing air and suction air may have different temperatures, the two air chambers of the air guide box are movable axially relative to each other.

    摘要翻译: 描述了用于多孔带的引导辊,例如用于造纸机的干燥线。 多孔辊壳围绕固定导风箱转动。 引导箱具有延伸穿过引导辊的长度的两个空气室。 一个空气室用于排出吹风空气,另一个空气室用于吸入和取出吸入空气。 空气引导箱和辊壳之间包含一个环形空间,其中吹风区和抽吸区由纵向密封限定。 考虑到吹送空气和吸入空气可能具有不同的温度,空气引导箱的两个气室可相对于彼此轴向移动。

    Drying cylinder adapted to be heated with steam
    4.
    发明授权
    Drying cylinder adapted to be heated with steam 失效
    干燥筒适合用蒸汽加热

    公开(公告)号:US4520578A

    公开(公告)日:1985-06-04

    申请号:US492432

    申请日:1983-05-06

    CPC分类号: F28F5/02 D21F5/021

    摘要: A drying cylinder adapted to receive steam therein includes a cylindrical cylinder jacket and two end covers. There is a flange connection between the jacket and the covers. The jacket has a rectangular cross-section flange. The covers have an L-shaped flange which receives the end flange of the cover. The covers are concave to the outside of the cylinder. The point of intersection of a curved line through the cover and of the axial center line of the axial arm of the cover flange lies at a distance from the outer face of the flange of the end cover that is at most about 60% of the axial length of the axial arm of that flange. There is thermal insulation on the axially exterior side of each cover.

    摘要翻译: 适于在其中接受蒸汽的干燥筒包括圆柱形圆筒套和两个端盖。 护套和盖子之间有法兰连接。 护套具有矩形横截面法兰。 盖子有一个L形的凸缘,它接收盖的端部凸缘。 盖子对缸体的外侧是凹的。 通过盖子的曲线和盖凸缘的轴向臂的轴线中心线的交点与端盖的凸缘的外表面的距离至多为轴向的约60% 该法兰的轴向臂的长度。 每个盖子的轴向外侧都有保温。

    Apparatus for drying paper webs or the like
    5.
    发明授权
    Apparatus for drying paper webs or the like 失效
    用于干燥纸幅等的装置

    公开(公告)号:US4196689A

    公开(公告)日:1980-04-08

    申请号:US933813

    申请日:1978-08-15

    IPC分类号: D21F5/02 F28F5/02 F28F13/18

    CPC分类号: D21F5/021 Y10S165/156

    摘要: A Yankee clyinder whose internally heated shell consists of steel or cast iron and is provided with an external layer of pure or alloyed copper, molybdenum, tungsten or another metal whose thermal conductivity greatly exceeds (and preferably amounts to at least twice) the thermal conductivity of the material of the shell. The thickness of the layer is in the range of 0.4-2 millimeters, and the thermal expansion coefficient of its material is identical to or approximates that of the material of the shell. The layer can be applied to the periphery of the shell in molten state in the form of a finely atomized spray. The drying action of such cylinder upon a running paper web greatly exceeds the drying action of a cylinder whose shell consists exclusively of cast iron or steel.

    摘要翻译: 一种扬克石灰石,其内部加热的外壳由钢或铸铁组成,并且具有纯的或合金化的铜,钼,钨或另一种金属的外层,其导热率大大超过(优选至少两倍)导热性 壳的材质。 该层的厚度在0.4-2毫米的范围内,并且其材料的热膨胀系数与外壳材料的热膨胀系数相同或相近。 该层可以以细雾化的喷雾的形式在熔融状态下施加到壳的外围。 这种圆筒在运行的纸幅上的干燥作用大大超过了其外壳仅由铸铁或钢构成的圆筒的干燥作用。