公开(公告)号：US4837906A

公开(公告)日：1989-06-13

申请号：US177779

申请日：1988-04-05

申请人： Takaaki Mori ,  Kinichi Higuchi ,  Tsukasa Oyauchi ,  Masao Nitanda ,  Kohei Hosoi ,  Isao Imai ,  Heiji Kato ,  Mitsuhiko Ichikawa

发明人： Takaaki Mori ,  Kinichi Higuchi ,  Tsukasa Oyauchi ,  Masao Nitanda ,  Kohei Hosoi ,  Isao Imai ,  Heiji Kato ,  Mitsuhiko Ichikawa

IPC分类号： B21B27/05

CPC分类号： B21B27/05

摘要： Longitudinal axial positions in a roll longitudinal axis of ring pistons fitted into a profile-variable rolling roll are detected with a higher degree of accuracy. In response to outputs representative of the detected longitudinal axial positions of the ring pistons, the positions of the ring pistons can be controlled with a high degree of accuracy, whereby controllability of shape of the rolling roll is enhanced.

公开(公告)号：US5001820A

公开(公告)日：1991-03-26

申请号：US544332

申请日：1990-06-27

申请人： Masujiro Yoshida ,  Masao Nitanda ,  Heiji Kato ,  Isao Imai ,  Tsukasa Oyauchi

发明人： Masujiro Yoshida ,  Masao Nitanda ,  Heiji Kato ,  Isao Imai ,  Tsukasa Oyauchi

IPC分类号： B21B27/05

CPC分类号： B21B27/05

摘要： Axially extending liquid-tight tapered spaces are defined in the barrel of a roll body. Tapered pistons are fitted in the spaces for engagement and disengagement with a bore inner surface defining the tapered spaces. A liquid under pressure is supplied through liquid passages to some of liquid pressure chambers at opposite ends of the tapered pistons so that the barrel of the roll body is increased or decreased in diameter. When the rolling forces are removed from the roll body, the roll body returns to its initial straight state.

摘要翻译： 在辊体的筒体中限定有轴向延伸的液密锥形空间。 锥形活塞安装在空间中，用于与限定锥形空间的孔内表面接合和分离。 压力下的液体通过液体通道供应到锥形活塞的相对端的一些液压室，使得辊体的筒体的直径增大或减小。 当滚动体从辊体移除时，辊体返回其初始直线状态。