FEEDBACK MECHANISM AND VALVE POSITIONER,申请号JP20020035048-传众专利搜索

FEEDBACK MECHANISM AND VALVE POSITIONER

申请公布号：JP2003239901(A)

申请号：JP20020035048

申请日期：2002.02.13

申请公布日期：2003.08.27

申请人：

YAMATAKE CORP

发明人：ITO KOFUKU

分类号：F15B9/07;F15B5/00;G05D16/20;(IPC1-7):F15B5/00

主分类号：F15B9/07

摘要：PROBLEM TO BE SOLVED: To provide a feedback mechanism and a valve positioner which prevent the wear and breakage by improving the vibration-proof structure to improve the reliability, and extend a service life. SOLUTION: The feedback mechanism 24 comprises a feedback pin 32 interlocking with the movement of an operating shaft 23 of a controller 22 connected to a driving shaft of a valve 21, a feedback shaft 33, and a feedback sensor for detecting the angle of rotation of the feedback shaft 33. The feedback pin 32 and the feedback shaft 33 are connected with a connection member 35. The connection member 35 consists of a cylindrical first bearing part 37 for inserting the feedback pin 32, a cylindrical second bearing part 38 for inserting the feedback shaft 33, and a connection part 39 for connecting the first and second bearing parts 37 and 38. COPYRIGHT: (C)2003,JPO