Wear element for a scraping operation
AssigneeBucyrus Blades, Inc.
InventorsRoy L. Bain, Roger A. Salway
Life of this patent
Estimating the term…
Abstract
A wear insert for protecting a working element operating in an abrasive environment comprises a pair of spaced apart legs which define a gap for receiving a mounting flange of the protected working element. The wear element wraps around the mounting flange and interlocks with cooperative flanges of the working element to securely hold the insert to the working element.
Claims36
A blade assembly for use with a mold board comprising:
- a working element, said working element including means for attaching said working element to the mold board such that said working element extends downward therefrom to work a work surface in a general scraping operation, said working element further including a lower end having a pair of spaced apart, generally parallel flanges defining a fully open recess therebetween;
- a wear insert mounted to said working element for engaging the work surface during the scraping operation, said wear insert having a body of a certain width and a pair of spaced apart, generally parallel legs projecting from said body and extending continuously across the width of said body, said legs defining a fully open gap therebetween, said wear insert further including a front wear surface lying in a plane substantially parallel to the projection of said legs and a lower wear surface oriented at an angle to said front wear surface, said front and lower wear surfaces engage said work surface during the scraping operation to thereby protect said working element from wearing caused by the scraping operation, one of said legs of said wear insert being matingly received into said recess of said working element and one of said flanges of said working element being matingly received into said gap of said wear working element being matingly received into said gap of said wear insert such that said wear insert and said working element are interfitted with one another;
- and
- a brazing compound provided within said recess of said working element and said gap of said wear insert to fixedly bond said leg in said recess and said flange in said gap.
A blade assembly adapted for mounting to a mold board including:
- a working element including means for attaching said working element to a lower end of said mold board and a pair of flanges, said flanges being spaced apart to define a recess therebetween;
- at least one wear insert attached to said working element to protect said element from wearing, said wear insert having a certain width and including a body and a pair of legs extending continuously across the width of said wear insert, said legs being spaced apart from each other to define a gap therebetween, said wear insert further including at least one wear surface for engaging an abrasive work surface to protect the working element from wearing, one of said flanges of said working element being matingly received into said gap of said wear insert and one of said legs of said wear insert being matingly received into said recess of said working element such that said wear insert and said working element are interfitted with one another;
- and
- a brazing compound provided within said recess of said working element and said gap of said wear insert to fixedly attach said leg in said recess and said flange in said gap, said brazing compound forming the only means for securing the wear insert against movement away from said working element in the direction parallel to the extension of said legs.
A wear insert for use with a blade assembly in a general scraping operation to protect the blade assembly from wearing, said wear insert having an upper side, a front side, a bottom side, a rear side and a certain width, said wear insert further including a body, a front leg and a rear leg, said body and said front and rear legs extending completely across said width of said wear insert, said legs projecting from said body in a generally parallel relationship and being spaced apart to define a fully open gap therebetween, at least one of said legs of said wear insert having a proximate end adjacent said body and a free end remote from said body, said at least one leg having a depth defined between a front wall and a rear wall, said depth extending in a direction perpendicular to said front side of said wear insert, said front and rear walls of said at least one leg being substantially planar from said proximate end to said remote end, said wear insert further including a multi-faceted, continuous mounting surface extending over said upper and rear sides, said mounting surface being adapted for bonding to corresponding surfaces on said working element, said mounting surface being defined by a mounting face on each leg within said gap, a mounting face on each said leg outside of said gap, a mounting face on said body within said gap, and a mounting face on one of said legs along said rear side of said wear insert, said front side defining a leading surface lying in a plane substantially parallel with the projection of said legs, said leading surface being adapted to engage an abrasive material during the scraping operation to protect the blade assembly from wearing.
A wear insert for use on a blade assembly to protect the blade assembly during a general scraping operation, said wear insert having an upper side, a front side, a bottom side, a rear side and a pair of sidewalls, the distance between said sidewalls defining a width of said wear insert, said wear insert including a fully open gap in a medial portion thereof, said gap being open to said upper side and said sidewalls, said wear insert further defining a multi-faceted, continuous mounting surface extending across said upper side, said gap and said rear side, said mounting surface being defined by a series of discrete mounting faces arranged seriatim on a portion of said upper side adjacent one side of the opening of said gap, on a plurality of walls defining said gap, on a portion of said upper side on the other side of the opening of said gap, and on said rear side, each said mounting face extending continuously across the width of said wear insert, said mounting faces being adapted for bonding to corresponding surfaces of the blade assembly to securely hold said wear insert to the blade assembly, said front side including a leading wear surface and said bottom side including a lower wear surface, said leading and lower wear surfaces being adapted to engage an abrasive material during the scraping operation.
Dependencies are inferred from the claim text.