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    RINGWALZVORRICHTUNG
    4.
    发明公开
    RINGWALZVORRICHTUNG 有权

    公开(公告)号：EP3110577A1

    公开(公告)日：2017-01-04

    申请号：EP14706598.1

    申请日：2014-02-25

    申请人： Hatebur Umformmaschinen AG

    发明人： MARITZ, Andreas ,  MÜLLER, Wolfgang ,  STEMMELIN, Pascal ,  CHRISTOFFEL, Thomas

    IPC分类号： B21H1/06 ,  B21H1/12

    CPC分类号： B21H1/12 ,  B21B25/00 ,  B21H1/06

    摘要： The invention relates to a ring rolling device for enlarging a ring blank (9), comprising a drive roller (1) and a rotatable revolving drum (3), in which five mandrels (2) are rotatably mounted. Ring blanks (9) can be mounted around the mandrels (2). By rotating the revolving drum (3), the mandrels (2) move towards and away from the drive roller (1). The revolving drum (3) is arranged in relation to the drive roller (1), in such a way that, by rotating the revolving drum (3) a decreasing roll gap is formed between a mandrel (2) approaching the drive roller (1) and the drive roller (1), in which roll gap a ring blank (9) mounted around the mandrel (2) is rolled, during the rotating of the revolving drum (3). The revolving drum (3) has four rotatably mounted support rollers for rotatably mounting each mandrel (2), said support rollers supporting the mandrel (2) in the direction of the rotational axis (39) of the revolving drum, such that, during the rolling process, the mandrel (2) is located between the support rollers and the press element (1).

    摘要翻译： 环滚动装置包括驱动辊和可旋转的旋转滚筒，其中可旋转地安装有五个心轴。 环形坯料可以安装在心轴周围。 通过旋转左轮滚筒，心轴朝向和远离驱动辊移动。 左轮滚筒以这样的方式相对于驱动辊布置，通过旋转转鼓，在接近驱动辊和驱动辊之间的心轴之间形成减小的辊间隙，其中辊间隙环安装在驱动辊周围 心轴在转鼓的旋转期间滚动。 左轮滚筒具有四个可旋转地安装的支撑辊，所述支撑辊沿着旋转滚筒的旋转轴线的方向支撑心轴，使得在滚动过程期间，心轴位于支撑辊和压力元件之间。

    RINGWALZVORRICHTUNG MIT AXIAL FESTSTEHENDEN WÄLZLAGERN
    8.
    发明公开
    RINGWALZVORRICHTUNG MIT AXIAL FESTSTEHENDEN WÄLZLAGERN 有权
    带有轴向固定滚子轴承的环形滚动装置

    公开(公告)号：EP3283243A1

    公开(公告)日：2018-02-21

    申请号：EP16717329.3

    申请日：2016-04-13

    申请人： Hatebur Umformmaschinen AG

    发明人： MARITZ, Andreas ,  MATT, Andreas ,  CHRISTOFFEL, Thomas

    IPC分类号： B21H1/06 ,  B21H1/12

    CPC分类号： B21H1/12 ,  B21H1/06

    摘要： The invention relates to a ring rolling device for expanding a ring blank (9) comprises a pressing element, a rotatably supported mandrel (2), and an advancing assembly (3), in which a first end part of the mandrel (2) is rotatably supported in a first rolling-element bearing (310) and a second end part of the mandrel is rotatably supported in a second rolling-element bearing (320). The ring blank (9) can be supported around the mandrel (2). By means of the advancing assembly (3), the mandrel (2) can be moved toward the pressing element and away from the pressing element again, wherein a decreasing rolling gap is formed between the mandrel (2) and the pressing element, in which rolling gap the ring blank (9) is rolled. The two rolling-element bearings (310, 320) are arranged in the advancing assembly (3) in an axially fixed manner, and the mandrel (2) is supported in such a way that the mandrel can be moved axially in relation to the two rolling-element bearings (310, 320).