Dragline rigging components

Abstract

A swivel link for dragline rigging, the swivel link having three connection points interconnected by connecting arms, the connecting arms defining an interior cavity of the swivel link

1 . A wear member for a dragline rigging having at least one connecting lug adapted to engage a connector, the at least one connecting lug having a lug surface which in use is in a facing arrangement with the connector, the wear member configured to be positioned intermediate the at least one connecting lug and the connector and contacting the connector at a bearing surface, the bearing surface having an area greater than the lug surface. 
     
     
         2 . The wear member of  claim 1 , wherein the at least one connecting lug comprises a clevis lug having two spaced apart lug elements with aligned pin cavities. 
     
     
         3 . The wear member of  claim 1 , wherein the wear member comprises a planar body and a shroud extending therefrom and configured in use to enclose at least a portion of the connecting lug. 
     
     
         4 . The wear member of  claim 3 , wherein the shroud extends from at least a portion of the periphery of the planar body. 
     
     
         5 . The wear member of  claim 3 , wherein the shroud extends away from the bearing surface. 
     
     
         6 . A wear member for a connecting lug in a dragline rigging, the wear member comprising a planar body and a shroud extending from at least a portion of the periphery of the planar body. 
     
     
         7 . A connector for a dragline rigging, the connector comprising a body and two throughholes oriented to allow greater than 100 degree freedom of movement in two planes. 
     
     
         8 . The connector of  claim 7 , wherein the two planes are substantially perpendicular to one another. 
     
     
         9 . The connector of  claim 7 , wherein the connector allows approximately 180 degrees of freedom of movement in two planes. 
     
     
         10 . The connector of  claim 7 , wherein the throughholes are oriented such that they are substantially perpendicular to one another. 
     
     
         11 . The connector of  claim 7 , wherein the throughholes comprise a first throughhole adapted to connect with an upper spreader bar and a second throughhole adapted to connect with a dump pulley. 
     
     
         12 . The connector of  claim 7 , wherein the body comprises two conjoined annular sections, the first throughhole extending through a first annular section and the second throughhole extending through a second annular section. 
     
     
         13 . The connector of  claim 7 , further allowing greater than 5 degree freedom of movement axially along the length of the connector. 
     
     
         14 . A dragline rigging comprising at least one connecting lug adapted to engage a connector, the at least one connecting lug having a lug surface which in use is in a facing arrangement with the connector, and a wear member configured to be positioned intermediate the at least one connecting lug and the connector and contacting the connector at a bearing surface, the bearing surface having an area greater than the lug surface. 
     
     
         15 . The dragline rigging of  claim 14 , further comprising a connector having a body and two throughholes oriented to allow greater than 100 degree freedom of movement in two planes. 
     
     
         16 . The dragline rigging of  claim 14 , wherein the at least one connecting lug extends from an upper spreader bar and the connector is configured to engage a dump pulley.