Metal abrasive module for machining rails

Abstract

A vehicle for machining a rail by grinding and/or planing, including a metal abrasive module, an eccentric drive performing an eccentric movement, at least two abrasive blocks connected with the eccentric drive, and a force exerting drive pressing at least one abrasive block onto the rail, wherein the metal abrasive module and/or at least one of the abrasive blocks is individually tiltable around an axis parallel to the rail, and wherein at least one of the abrasive blocks is individually pressable onto the rail. This allows a more effective and improved metal removal and rail shaping capabilities.

1 . Vehicle for machining a rail by grinding and/or planing, comprising a mobile chassis and a metal abrasive module for grinding and/or planning a rail, the metal abrasive module comprising:
 an eccentric drive performing an eccentric movement;   at least two abrasive blocks connected with the eccentric drive;   a force exerting drive pressing at least one abrasive block onto the rail;   wherein the metal abrasive module and/or at least one of the abrasive blocks is tiltable around an axis parallel to the rail; and   wherein at least one of the abrasive blocks is individually pressable onto the rail.   
     
     
         2 . Vehicle according to  claim 1 , wherein a translational movement component of at least one of the abrasive blocks is longer than the length of said abrasive block. 
     
     
         3 . Vehicle according to  claim 1 , wherein the eccentric movement has a scotch yoke type mechanism. 
     
     
         4 . Vehicle according to  claim 1 , wherein multiple abrasive blocks are coupled together. 
     
     
         5 . Vehicle according to  claim 1 , wherein the eccentric drive is driven by a variable frequency electric motor and/or a hydraulic drive. 
     
     
         6 . Vehicle according to  claim 1 , wherein the abrasive module can be tilted from vertical towards an outer side and/or inner side of the rail. 
     
     
         7 . Vehicle according to  claim 1 , further comprising a debris suction head in the vicinity of the contact surface of the metal abrasive module with the rail. 
     
     
         8 . Vehicle according to  claim 1 , further comprising a guide roller in the vicinity of the metal abrasive module and/or abrasive block, wherein the guide roller is in contact with the rail. 
     
     
         9 . Vehicle according to  claim 1 , wherein at least two abrasive modules are each connected to an individual guide roller. 
     
     
         10 . Vehicle according to  claim 1 , wherein the abrasive module is connected to a guide roller with a debris suction head. 
     
     
         11 . Method for machining a rail by grinding and/or planing, comprising the steps of:
 approaching a surface to be machined until contact with a metal abrasive module with at least two abrasive blocks connected with a vehicle;   tilting the metal abrasive module and/or at least one abrasive block parallel to a desired surface form; and   performing eccentric movements with the metal abrasive module while pressing the metal abrasive module onto the rail.   
     
     
         12 . Method according to  claim 11 , further comprising the step of suction of debris and/or metal chips in the vicinity of at least one of the abrasive blocks.