Rotary drive of reciprocating roll passes of a cold pilger rolling mill

Abstract

In a method for adjusting a rolling curve of drive pinions of ring rollers to a neutral zone within a tapering portion of a roll pass of the ring rollers of a cold pilger rolling mill, circular pinions are arranged and secured eccentrically on a roller axis of the ring roller. The circular pinions are driven by sine-shaped tooth racks.

What is claimed is:  
     
         1 . A method for adjusting a rolling curve of drive pinions of ring rollers to a neutral zone within a tapering portion of a roll pass of the ring rollers of a cold pilger rolling mill, the method comprising the step of: 
 arranging and securing circular pinions eccentrically on a roller axis of the ring roller.    
     
     
         2 . The method according to  claim 1 , further comprising the step of: 
 driving the circular pinions by sine-shaped tooth racks.    
     
     
         3 . The method according to  claim 2 , further comprising the step of: 
 adjusting one or more of the parameters selected from the group consisting of roller diameter, reference circle of the pinion, eccentricity, and angular position of the eccentricity relative to the approach dead center of the roll stand relative to the current roll dimensions.