System for Attaching a Replaceable Ground Engaging Wear Member

Abstract

A compactor tooth has a replaceable, ground engaging wear member mounted to a mounting block carried on the cylindrical exterior surface of a landfill-compactor wheel of a compactor machine. The mounting block has an external surface formed to engage a complementary internal cavity of the wear tip and includes a pair of circumferentially spaced sides oriented not more than 5 degrees from perpendicular to the cylindrical exterior surface of the wheel. The replaceable tip has a body with an exterior ground-engaging surface, a mounting end and a mounting-base receiving cavity opening through the mounting end. The cavity is configured to receive the mounting block thereinto and has a pair of circumferentially spaced side surfaces configured to be in close abutting relationship to a respective one of the circumferentially spaced sides of said mounting block.

1 . Wear apparatus mountable on an excavating device support structure and comprising a wear member having:
 spaced apart front and rear ends;   a cavity extending forwardly through said rear end and configured to removably receive a portion of the support structure;   an exterior side wall extending forwardly from said rear end and partially bounding said cavity, said exterior side wall having an interior side surface; and   a recess formed in said interior side surface, said recess having a first end portion rearwardly opening outwardly through said rear end of said wear member, and a second end portion disposed forwardly of said first end portion of said recess and being transversely enlarged relative thereto in a direction parallel to said interior side surface of said exterior side wall, said second end portion having a forwardly facing abutment surface.   
   
   
       2 . The wear apparatus of  claim 1  wherein:
 said wear member is a replaceable tooth point.   
   
   
       3 . The wear apparatus of  claim 1  wherein:
 said abutment surface is a forwardly facing arcuate abutment surface.   
   
   
       4 . The wear apparatus of  claim 3  wherein:
 said arcuate abutment surface has a generally circular curvature.   
   
   
       5 . The wear apparatus of  claim 1  wherein:
 said exterior side wall has an opening extending inwardly therethrough into said second end portion of said recess.   
   
   
       6 . The wear apparatus of  claim 5  wherein:
 said second end portion of said recess has a peripheral surface defined by a peripheral surface portion of said opening.   
   
   
       7 . The wear apparatus of  claim 1  further comprising:
 a locking member rotatably received in said second end portion of said recess.   
   
   
       8 . The wear apparatus of  claim 7  wherein:
 said locking member has a disc-shaped configuration.   
   
   
       9 . The wear apparatus of  claim 8  wherein:
 said locking member has an inner side portion facing said recess and having a diametrically extending slot formed therein.   
   
   
       10 . The wear apparatus of  claim 9  wherein:
 said slot has a tapered configuration.   
   
   
       11 . The wear apparatus of  claim 8  wherein:
 said locking member has an outer side portion facing said opening and having a noncircular drive opening formed therein.   
   
   
       12 . The wear apparatus of  claim 1  wherein:
 said cavity has an elliptical cross-section elongated in a direction generally transverse to said exterior side wall.   
   
   
       13 . The wear apparatus of  claim 1  wherein:
 said rear end has an alternately scalloped rearwardly facing surface circumscribing the entrance to said cavity.   
   
   
       14 . The wear apparatus of  claim 13  wherein:
 said alternately scalloped rearwardly facing surface is defined by peripherally alternating forwardly and rearwardly curved portions.