Arrangement for fastening a roll ring on an overhung roll shaft
OwnerUwe Karkinventor
Life of this patent
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Abstract
An arrangement for fastening a roll ring (5) to an overhung roll shaft (1) by means of a taper sleeve (8) which transmits essentially the entire torque and which is loaded axially by a spring (43) supported on an abutment (47) adjustable on the free end of the roll shaft. The roll ring can be exchanged easily because of a cylinder part (21) arranged radially within the spring. This cylinder part forms a first annular cylinder space (40) for prestressing the spring, with which it interacts via a flange, and a second cylinder space (22) for drawing off the taper sleeve, to which it is connected via engagement means (28). The spring and the hydraulic devices can remain in place when a roll ring is assembled and removed, because their outside diameter is less than the bore of the roll ring.
Claims21
Apparatus for fastening a roll ring on an overhung roll shaft comprising:
- A. a roll shaft having a tapered surface and a sliding surface adjacent the tapered surface;
- B. a generally annular piston part surrounding the roll shaft and having an inner surface in bearing contact with the sliding surface of the roll shaft;
- C. a generally annular taper sleeve surrounding the roll shaft adjacent the piston part and having a radially resilient portion incuding a first sleeve surface in bearing contact with the tapered surface of the roll shaft and a second sleeve surface for contacting an inner surface of the roll ring;
- D. means for moving the piston part in a first axial direction along the roll shaft;
- and
- E. means for coupling the first axial movement of the piston part to the taper sleeve so that movement of the radially resilient portion of the taper sleeve in the first axial direction along the tapered surface of the roll shaft radially expands the resilient portion and imparts radial force to the roll ring.
Apparatus for fastening a roll ring on an overhung roll shaft comprising:
- A. a roll shaft including;
- (i) a tapered surface,
- (ii) a first sliding surface adjacent the tapered surface, and
- (iii) a second sliding surface adjacent the first sliding surface, the second sliding surface being circumferentially different from the first sliding surface for forming a first annular surface at a junction thereof;
- (iv) means, adjacent the second sliding surface, for forming a third sliding surface, the third sliding surface being circumferentially different from the second sliding surface for forming a second annular surface at a junction thereof;
- B. a generally annular piston part surrounding the roll shaft including:
- (i) a first piston surface in bearing contact with the first sliding surface,
- (ii) a second piston surface adjacent the first piston surface and in bearing contact with the second sliding surface, the first and second piston surfaces forming a third annular surface at a junction thereof, and
- (iii) a third piston surface adjacent the second piston surface and in bearing contact with the third sliding surface, the second and third piston surfaces forming a fourth annular surface at a junction thereof,
- wherein a portion of the third piston surface forms with a portion of the second sliding surface and the second and fourth annular surfaces at first annular space, and
- wherein a portion of the first piston surface forms with a portion of the second sliding surface and the first and third annular surfaces a second annular space;
- C. means for flowing a fluid into the first annular space, the piston part moving in a first axial direction when fluid flows into the first annular space;
- D. means for flowing a fluid into the second annular spasce, the piston part moving in a second axial direction when fluid flows into the second annular space;
- E. a generally annular taper sleeve surrounding the roll shaft adjacent the piston part and having a radially resilient portion including:
- (i) a first sleeve surface in bearing contact with the tapered surface of the roll shaft,
- (ii) a second sleeve surface radially opposite the first sleeve surface for contacting an inner surface of the roll ring;
- and
- F. means for coupling the movement of the piston part in the first axial direction to the taper sleeve so that movement of the radially resilient taper sleeve in the first axial direction along the tapered surface of the roll shaft radially expands the resilient portion and imparts radial force to the roll ring.
Dependencies are inferred from the claim text.