Grading attachment for work machine

Abstract

A grading attachment for a work machine includes a frame defining a front end and a rear end and a roller rotatably coupled to the frame proximal to the front end of the frame. The roller defines an outer surface. The grading attachment includes a scraper assembly coupled to the frame proximal to the front end of the frame. The scraper assembly is offset to an axis of rotation of the roller. The scraper assembly includes a first scraper plate extending along the axis of rotation. The first scraper plate includes a first end surface that is proximal to the outer surface of the roller. The scraper assembly also includes a second scraper plate coupled to the first scraper plate and extending along the axis of rotation. The second scraper plate includes a second end surface that is proximal to the outer surface of the roller.

What is claimed is: 
     
         1 . A grading attachment for a work machine, the grading attachment comprising:
 a frame defining a front end and a rear end;   a roller rotatably coupled to the frame proximal to the front end of the frame, wherein the roller is rotatable in a clockwise direction and an anti-clockwise direction about an axis of rotation, and wherein the roller defines an outer surface; and   a scraper assembly coupled to the frame proximal to the front end of the frame, wherein the scraper assembly is offset to the axis of rotation of the roller, the scraper assembly including:
 a first scraper plate extending along the axis of rotation, wherein the first scraper plate includes a first end surface that is proximal to the outer surface of the roller, and wherein the first end surface is adapted to at least partially remove material stuck to the outer surface of the roller; and 
 a second scraper plate extending along the axis of rotation, wherein the second scraper plate is coupled to the first scraper plate and is disposed at an angle relative to the first scraper plate, wherein the second scraper plate includes a second end surface that is proximal to the outer surface of the roller, and wherein the second end surface is adapted to at least partially remove material stuck to the outer surface of the roller. 
   
     
     
         2 . The grading attachment of  claim 1 , wherein the scraper assembly further includes a pair of end plates disposed at opposing ends of the scraper assembly, wherein the first scraper plate and the second scraper plate extend between the pair of end plates, and wherein the scraper assembly is coupled to the frame of the grading attachment via the pair of end plates. 
     
     
         3 . The grading attachment of  claim 1 , wherein the angle between the first scraper plate and the second scraper plate lies in a range of 40 degrees and 100 degrees. 
     
     
         4 . The grading attachment of  claim 1 , wherein the first scraper plate is disposed at an inclination angle relative to a longitudinal axis of the grading attachment. 
     
     
         5 . The grading attachment of  claim 4 , wherein the inclination angle between the first scraper plate and the longitudinal axis of the grading attachment lies in a range of 5 degrees and 45 degrees. 
     
     
         6 . The grading attachment of  claim 1 , wherein, when the roller rotates in the anti-clockwise direction, the first end surface of the first scraper plate is adapted to contact the material stuck to the outer surface of the roller to facilitate removal of the material from the outer surface of the roller. 
     
     
         7 . The grading attachment of  claim 1 , wherein, when the roller rotates in the clockwise direction, the second end surface of the second scraper plate is adapted to contact the material stuck to the outer surface of the roller to facilitate removal of the material from the outer surface of the roller. 
     
     
         8 . The grading attachment of  claim 1  further comprising a plurality of mechanical fasteners, wherein the scraper assembly is removably coupled to the frame by the plurality of mechanical fasteners. 
     
     
         9 . The grading attachment of  claim 1 , wherein the work machine includes an excavator or a backhoe loader. 
     
     
         10 . A work machine comprising:
 a chassis;   a plurality of ground engaging members coupled to the chassis; and   a grading attachment removably coupled to the chassis, the grading attachment including:
 a frame defining a front end and a rear end; 
 a roller rotatably coupled to the frame proximal to the front end of the frame, wherein the roller is rotatable in a clockwise direction and an anti-clockwise direction about an axis of rotation, and wherein the roller defines an outer surface; and 
 a scraper assembly coupled to the frame proximal to the front end of the frame, wherein the scraper assembly is offset to the axis of rotation of the roller, the scraper assembly including:
 a first scraper plate extending along the axis of rotation, wherein the first scraper plate includes a first end surface that is proximal to the outer surface of the roller, and wherein the first end surface is adapted to at least partially remove material stuck to the outer surface of the roller; and 
 a second scraper plate extending along the axis of rotation, wherein the second scraper plate is coupled to the first scraper plate and is disposed at an angle relative to the first scraper plate, wherein the second scraper plate includes a second end surface that is proximal to the outer surface of the roller, and wherein the second end surface is adapted to at least partially remove material stuck to the outer surface of the roller. 
 
   
     
     
         11 . The work machine of  claim 10  further comprising a linkage assembly coupled to the chassis, wherein the grading attachment is removably coupled to the chassis via the linkage assembly. 
     
     
         12 . The work machine of  claim 11 , wherein the frame of the grading attachment includes a coupling structure that removably couples the grading attachment with the linkage assembly. 
     
     
         13 . The work machine of  claim 10 , wherein the scraper assembly further includes a pair of end plates disposed at opposing ends of the scraper assembly, wherein the first scraper plate and the second scraper plate extend between the pair of end plates, and wherein the scraper assembly is coupled to the frame of the grading attachment via the pair of end plates. 
     
     
         14 . The work machine of  claim 10 , wherein the angle between the first scraper plate and the second scraper plate lies in a range of 40 degrees and 100 degrees. 
     
     
         15 . The work machine of  claim 10 , wherein the first scraper plate is disposed at an inclination angle relative to a longitudinal axis of the grading attachment. 
     
     
         16 . The work machine of  claim 15 , wherein the inclination angle between the first scraper plate and the longitudinal axis of the grading attachment lies in a range of 5 degrees and 45 degrees. 
     
     
         17 . The work machine of  claim 10 , wherein, when the roller rotates in the anti-clockwise direction, the first end surface of the first scraper plate is adapted to contact the material stuck to the outer surface of the roller to facilitate removal of the material from the outer surface of the roller. 
     
     
         18 . The work machine of  claim 10 , wherein, when the roller rotates in the clockwise direction, the second end surface of the second scraper plate is adapted to contact the material stuck to the outer surface of the roller to facilitate removal of the material from the outer surface of the roller. 
     
     
         19 . The work machine of  claim 10 , wherein the grading attachment further includes a plurality of mechanical fasteners, and wherein the scraper assembly is removably coupled to the frame by the plurality of mechanical fasteners. 
     
     
         20 . The work machine of  claim 10 , wherein the work machine includes an excavator or a backhoe loader.