US 5,483,812 A · Roll apparatus for reducing work

Abstract

Roll apparatus in which the rotation under the tangential force exerted when the apparatus is in use of the rolling rings relative to the arbor is suppressed by the restoring force of the arbor that is elongated and held in the elongated condition exerting an axial pressure on the rolling ring assembly. The arbor is elongated by expansion of a chamber to which the arbor is connected through a thrust ring which forms a boundary of the chamber. In addition to the thrust ring, the boundaries of the chamber are a flanged ring mounted on the arbor, which is fixed, and the arbor. An adjustable spacing collar is connected to the arbor. After the arbor is elongated, the collar is adjusted to engage the flanged ring, thus locking the arbor against contraction. On removal of the impressed pressure, the adjustable collar in contact with the flanged ring and with the arbor constitute a lock to prevent the reduction of the elongation so that the restoring force of the tensioned mandrel is exerted to prevent rotation of the rolls relative to the mandrel when the apparatus is in use.

Claims13

Dependent claims

Roll apparatus for reducing work including an arbor having an axis, roll means mounted on said arbor for rotation therewith, means, mounted on said arbor adjacent said roll means, forming with said arbor a sealed chamber, means connecting said chamber to said arbor, means, connected to said chamber for impressing pressure on said chamber to expand said chamber, said pressure being of such magnitude as to elongate said arbor through the connection between said chamber and said arbor by a predetermined magnitude, and continuously adjustable spacer means, connected to said arbor near one end, and adapted to be adjusted while so connected, after said arbor has been elongated to be connected to said forming means thereby locking the elongated arbor against reduction of the elongation on the removal of said impressed pressure, whereby on the removal of said impressed pressure, said arbor exerts axial pressure on said roll means to suppress rotation of said roll means relative to said arbor.

Roll apparatus for reducing work including a rotatable arbor having an axis, roll means mounted on said arbor for rotation therewith, a pressurizing unit connected to said roll means to exert generally axial pressure thereon to suppress rotation of said roll means relative to said arbor;

said pressurizing unit including:
a flanged ring having a flange and a web, said flanged ring being mounted on said arbor abutting said roll means, a thrust ring seated in an annular space defined by said flange and web and by said arbor, said thrust ring being spaced from said web defining a chamber bounded by said flange, said web and said arbor, means, connected to said thrust ring, and to said flanged ring and to said arbor for sealing said chamber, another ring connected to said arbor connecting said chamber to said arbor, said other ring having a screw thread, means connected to said chamber for impressing pressure on said chamber to enlarge said chamber, said pressure being of such magnitude as to elongate said arbor through the connection between said chamber and said arbor, and an adjustable spacing collar adjustably positioned on said screw thread, said adjustable spacing collar being adjustable by being advanced on said thread of said other ring to a position in which it prevents said arbor from reducing its elongation after said pressure has been removed, thereby to cause said adjustable collar to exert axial pressure on said roll means to suppress rotation of said roll means relative to said arbor.

Dependencies are inferred from the claim text.

Roll apparatus for reducing work

Life of this patent

Roll apparatus for reducing work

Life of this patent

Abstract

Claims13