Title:
少なくとも1本の糸を案内するロール並びに1本のロールの回転可能に支承されたロール周壁の振動減衰法
Document Type and Number:
Japanese Patent JP4180288
Kind Code:
B2
Abstract:
A cylinder for guiding yarn comprises a hollow-cylindrical jacket seated on a support by radially acting magnetic bearings having plural pole windings distributed circumferentially. The cylinder jacket position is detected by plural sensors coupled with the pole windings by a control unit. The sensors are spaced from the cylinder jacket and from the support for determining the actual position of the cylinder jacket relative to a stationary reference position. Vibrations of the cylinder jacket are damped by determining the actual position of the cylinder jacket in relation to a stationary reference position and the chronological change of the actual position as a function of the rotary frequency of the cylinder jacket. Control signals for the magnetic bearing are generated to cause the magnetic bearing to counteract the position change of the cylinder jacket.
Inventors:
Dirk Raukin
Application Number:
JP2002072038A
Publication Date:
November 12, 2008
Filing Date:
March 15, 2002
Export Citation:
Assignee:
Neumark Gezel Shaft Mitt Beschlenktel Haftung Und Company Commandee Gezel Shaft
International Classes:
B65H51/06; B65H57/14; B65H54/46; D02J13/00; F16C13/02; F16C32/04; F16C39/06; F16F15/03; H02K7/14; H02K7/09
Domestic Patent References:
| JP4016653B2 | ||||
| JP6084422A | ||||
| JP2000226154A | ||||
| JP107324A | ||||
| JP8251865A |
Foreign References:
| EP0770719A1 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel