Milling drum having a milling drum rotor

Abstract

A milling drum includes a milling drum rotor. Bottom parts of tool systems are attached to the surface of the milling drum rotor. At least a subset of the bottom parts are spaced apart from one another in the circumferential direction. Filling elements are disposed in the spacer area between at least some of the adjacent bottom parts, which filling elements are each welded to the bottom part disposed in front of and behind the filling element in the circumferential direction of the milling drum, respectively, and to the surface of the milling drum rotor. At least a subset of the filling elements have a base body to which at least one protrusion projecting radially outwards is integrally formed, and the protrusion is welded to the rear end of the front bottom part or to the front end of the rear bottom part.

1 - 12 . (canceled) 
     
     
         13 : A milling drum for a road milling machine, comprising:
 a milling drum rotor configured to rotate about an axis of rotation, the milling drum rotor including a rotor outer surface;   a plurality of bottom parts of a plurality of tool systems attached to the rotor outer surface such that the bottom parts project from the rotor outer surface, at least a subset of the bottom parts being spaced apart from one another at least partially in a circumferential direction relative to the axis of rotation such that a spacer area is defined between a front bottom part and a rear bottom part of two adjacent ones of the bottom parts; and   a filling element disposed in the spacer area, the filling element including a base body and at least one protrusion integrally formed with the base body and projecting outwards from the base body away from the rotor outer surface, the protrusion being welded to a rear end of the front bottom part or to a front end of the rear bottom part and the filling element being welded to the rotor outer surface.   
     
     
         14 : The milling drum of  claim 13 , wherein:
 the at least one protrusion includes a front protrusion and a rear protrusion integrally formed with the base body, the front protrusion and the rear protrusion being spaced apart from one another at least partially in the circumferential direction, the front protrusion being welded to the front bottom part and the rear protrusion being welded to the rear bottom part.   
     
     
         15 : The milling drum of  claim 14 , wherein:
 the base body is delimited radially on an outside by an end face;   at least one of the front and rear protrusions includes a transfer section; and   a rounding transition joins the transfer section and the end face.   
     
     
         16 : The milling drum of  claim 15 , wherein:
 the transfer section and the end face merge tangentially into each other.   
     
     
         17 : The milling drum of  claim 15 , wherein:
 the end face is at least partially concave.   
     
     
         18 : The milling drum of  claim 15 , wherein:
 the end face is at least partially convex.   
     
     
         19 : The milling drum of  claim 13 , wherein:
 the at least one protrusion includes a radially outer head area and a foot area coupling the radially outer head area with the base body; and   the at least one protrusion has a lower section modulus against bending about an axis parallel to the axis of rotation of the milling drum in the foot area than in the head area.   
     
     
         20 : The milling drum of  claim 13 , wherein:
 the at least one protrusion is a front protrusion including a front longitudinal edge on a radially outer end of the front protrusion, the front longitudinal edge extending in a direction at least partially along the axis of rotation, the front longitudinal edge being connected to the front bottom part by a weld seam.   
     
     
         21 : The milling drum of  claim 13 , wherein:
 the at least one protrusion is a rear protrusion including a rear longitudinal edge on a radially outer end of the rear protrusion, the rear longitudinal edge extending in a direction at least partially along the axis of rotation, the rear longitudinal edge being connected to the rear bottom part by a weld seam.   
     
     
         22 : The milling drum of  claim 13 , wherein:
 the at least one protrusion is a front protrusion including front transverse edges on its opposite ends, the front transverse edges being spaced apart from each other in the direction of the axis of rotation, the front transverse edges being welded to the front bottom part.   
     
     
         23 : The milling drum of  claim 22 , wherein:
 the front transverse edges are spaced apart from each other adjacent to the rotor outer surface by a spacing in a range of from at least 0.4 to 1.0 times a width of the front bottom part adjacent to the rotor outer surface.   
     
     
         24 : The milling drum of  claim 13 , wherein:
 the at least one protrusion is a rear protrusion including rear transverse edges on its opposite ends, the rear transverse edges being spaced apart from each other in the direction of the axis of rotation, the rear transverse edges being welded to the rear bottom part.   
     
     
         25 : The milling drum of  claim 24 , wherein:
 the rear transverse edges are spaced apart from each other adjacent to the rotor outer surface by a spacing in a range of from at least 0.4 to 1.0 times a width of the rear bottom part adjacent to the rotor outer surface.   
     
     
         26 : The milling drum of  claim 13 , wherein:
 the at least one protrusion is delimited by a cover section on an end facing away from the milling drum, the cover section extending at least 15 mm in the circumferential direction.   
     
     
         27 : The milling drum of  claim 13 , wherein:
 the at least one protrusion includes a front protrusion and a rear protrusion;   the front protrusion includes a front cantilever extending beyond the base part;   the rear protrusion includes a rear cantilever extending beyond the base part; and   the front cantilever extends further in a radial direction than does the rear cantilever.   
     
     
         28 : The milling drum of  claim 13 , wherein:
 the at least one protrusion is a front protrusion including a front longitudinal edge on a radially outer end of the front protrusion, the front longitudinal edge extending in a direction primarily parallel to the axis of rotation, the front longitudinal edge being radially set back relative a radially outer end of the protrusion to form a chamfer in the form of a weld seam preparation.   
     
     
         29 : The milling drum of  claim 13 , wherein:
 the at least one protrusion is a rear protrusion including a rear longitudinal edge on a radially outer end of the rear protrusion, the rear longitudinal edge extending in a direction primarily parallel to the axis of rotation, the rear longitudinal edge being radially set back relative a radially outer end of the protrusion to form a chamfer in the form of a weld seam preparation.   
     
     
         30 : The milling drum of  claim 13 , wherein:
 the subset of bottom parts are arranged helically relative to one another on the rotor outer surface in the circumferential direction to form a cutting and clearing helix.