Grinding wheel

Abstract

A circular grinding wheel has a center point and defines a multiplicity of extraction holes, which, in particular, are circular extraction holes. The center point of each extraction hole is arranged at the point of intersection of a radial line extending from the center point of the grinding wheel with a circle of holes that is arranged concentrically with respect to the center point and that has a radius. At least one of the radial lines is a single-hole radial line, on which the center point of only a single extraction hole is arranged. The center points of all the extraction holes that are arranged on a single-hole radial line lie substantially on a common single-hole circle having a radius. Each radial line comprises the center point of an extraction hole on at least one radius on which the two radial lines that are adjacent to this radial line in the circumferential direction have no center point of an extraction hole.

1 . A circular grinding disk comprising a body defining a center point and a multiplicity of extraction holes,
 wherein the center point of each extraction hole is arranged at the point of intersection of a radial line extending from the center point of the grinding disk with a circle of holes that is arranged concentrically with respect to the center point of the grinding disk and that has a radius,   wherein at least one of the radial lines is a single-hole radial line on which the center point of only a single extraction hole is arranged,   wherein the center points of all of the extraction holes that are arranged on a single-hole radial line lie substantially on a common single-hole circle with a radius radius, and   wherein each radial line comprises the center point of an extraction hole on at least one radius on which the two radial lines that are adjacent to this radial line in the circumferential direction have no center point of an extraction hole.   
     
     
         2 . The grinding disk as claimed in  claim 1 , wherein the number of circles of holes of which the radius is smaller than the radius of the single-hole circle lies in the range from 2 to 5. 
     
     
         3 . The grinding disk as claimed in  claim 1 , wherein:
 each radial line is assigned to a radial line type, which indicates the amount of radii on which the center point of an extraction hole is arranged on this radial line and   wherein the grinding disk has at most 5, different radial line types.   
     
     
         4 . The grinding disk as claimed in  claim 1 , wherein at most 6 center points of extraction holes are arranged on each radial line. 
     
     
         5 . The grinding disk as claimed in  claim 1 , wherein the center points of at least 3 extraction holes are arranged on each radial line that is not a single-hole radial line. 
     
     
         6 . The grinding disk as claimed in  claim 1 , wherein the number of all the extraction holes lies in the range from 20 to 100 . 
     
     
         7 . The grinding disk as claimed in  claim 1 , wherein the number of radial lines that comprise at least one center point of an extraction hole lies in the range from 10 to 50. 
     
     
         8 . The grinding disk as claimed in  claim 1 , wherein the number of circles of holes on which the center point of at least one extraction hole is arranged lies in the range from 3 to 10. 
     
     
         9 . The grinding disk as claimed in  claim 1 , wherein the average number of extraction holes of which the center points lie on a radial line lies in the range from 1.2 to 3. 
     
     
         10 . The grinding disk as claimed in  claim 1 , wherein the average number of extraction holes of which the center points lie on a circle of holes lies in the range from 6 to 20. 
     
     
         11 . The grinding disk as claimed in  claim 1 , wherein the ratio of the total area of all the extraction holes to the total area of the grinding disk lies in the range from 2% to 20%. 
     
     
         12 . The grinding disk as claimed in  claim 1 , wherein at least 80% of the extraction holes are circular and have a diameter which lies in the range from 3 mm to 6 mm. 
     
     
         13 . The grinding disk as claimed in  claim 1 , wherein the center points of at least 8 extraction holes are arranged on each circle of holes. 
     
     
         14 . The grinding disk as claimed in  claim 1 , wherein on each circle of holes, the extraction holes are arranged uniformly in the circumferential direction. 
     
     
         15 . The grinding disk as claimed in  claim 1 , wherein the arrangement of the extraction holes is not substantially translationally symmetrical. 
     
     
         16 . The grinding disk as claimed in  claim 1 , wherein the extraction holes are circular extraction holes. 
     
     
         17 . The grinding disk as claimed in  claim 2 , wherein the number of circles of holes of which the radius is smaller than the radius of the single-hole circle is 3 or 4. 
     
     
         18 . The grinding disk as claimed in  claim 3 , wherein the grinding disk has at most 3 different radial line types. 
     
     
         19 . The grinding disk as claimed in  claim 4 , wherein at most 3 center points of extraction holes are arranged on each radial line. 
     
     
         20 . The grinding disk as claimed in  claim 6 , wherein the number of all extraction holes lies in the range from 40 to 64.