发明申请
- 专利标题： Method and an arrangement for controlling position and or force of an elongated rolling device
- 专利标题（中）： 用于控制细长轧制装置的位置和/或力的方法和装置
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申请号： US10534842申请日： 2003-11-13
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公开(公告)号： US20060086245A1公开(公告)日： 2006-04-27
- 发明人: Tatu Pitkanen , Petteri Lannes , Marko Tiilikainen
- 申请人： Tatu Pitkanen , Petteri Lannes , Marko Tiilikainen
- 优先权： FI20022030 20021114
- 国际申请： PCT/FI03/00860 WO 20031113
- 主分类号： F15B21/04
- IPC分类号： F15B21/04
摘要：
In paper and board machines the position of a rolling device relative to another rolling device and/or the force exerted by the rolling device on the other rolling device or any variable acting on these is measured, and the value of the measured variable is compared with the set value of said variable in order to obtain the difference value of the variable, and the position of the rolling device and/or the force it exerts on the other rolling device is controlled on the basis of the difference value. The fluid pressure of the hydraulic means (5) and/or the flow velocity of the fluid to the hydraulic means is changed in order to alter the difference value of the variable by opening and/or closing at least one digital valve in a digital valve pack (7) functionally connected to the hydraulic means (S).
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