| 摘要 |
1490321 Rollers; universal joints; toothed gearing ESCHER WYSS Ltd 17 Feb 1976 [18 Feb 1975] 06173/76 Headings F2U and F2Q In a roll assembly which may form part of a calender for paper, a rotatable roll shell 2 is supported relatively to a stationary beam 1 by hydrostatic support elements 3, and a drive shaft 13 carries a driving pinion 12 which meshes with teeth 11 of a driven annulus 21 secured to the roll shell 2, the drive shaft 13 being supported in a housing 14 which is mounted rotatably upon the roll shell 2 by means of bearings 15, while the housing 14 is also held against rotation by a link 18 as a torque reaction anchorage secured to a fixed point 5. The link 18 is attached to housing 14 by a pin 17 having an axis parallel with the axis of the roll shell 2, and the axis of pin 17 preferably also lies in the plane of action of the hydrostatic support elements 3, i.e. a plane marked A in Fig. 1. The axis of the roll shell 2 is constrained to lie within plane A by means of two disc members 6 which have elongate apertures 7 with internal parallel faces 8 engaging flat faces 10 formed on the stationary beam 1. Thus the discs 6 are held against rotation, but shell 2 is free to rotate around the peripheries of the discs 6.
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