Chain Cutter for Excavating Rock/Soil and Its Application

Abstract

A chain cutter for excavating rock and/or soil has one or more chains and cutters fixed on the chains, such that the central line of the one or more chains can form a spatial curve. Adjacent returning cutters on the chain cutter non-excavating face are staggered in the lengthwise direction of the chains, and are in a mutually embedded arrangement in the widthwise direction, or adjacent returning cutters on the chain cutter non-excavating face are in a stacked arrangement in the lengthwise direction of the chains, i.e. the widths of the chain cutter excavating faces are greater than the widths of the non-excavating faces, such that a machine frame in an annular enclosed region of the chain cutter and a machine frame outside the enclosed region are connected together as one within the width range of the excavating faces.

1 . A chain blade for excavating rock and/or soil, the chain blade comprising:
 a chain having a center line; and   cutters fixed to the chain,   wherein the chain and cutters are adapted to allow the chain blade to bend such that the center line of the chain forms a space curve.   
     
     
         2 . A chain blade according to  claim 1 , wherein the chain blade is a multi-row chain blade in a width direction when used, and
 wherein the cutters of adjacent returned chain blades used for a non-excavation surface are arranged in a staggered way in a length direction, and are arranged in an embedded way in the width direction, such that the width of a rock/soil surface excavated by the multi-row chain blade is larger than the width of the non-excavation surface, and wherein a frame of the chain blade within an annular enclosed area and a frame outside the enclosed area are connected as a whole within the width of the excavation surface.   
     
     
         3 . A chain blade according to  claim 1 , wherein the chain blade is a multi-row chain blade in a width direction when used, and
 wherein the adjacent returned chain blades used for a non-excavation surface are arranged in an overlapping way, such that the width of a rock/soil surface excavated by the multi-row chain blade is larger than the width of the non-excavation surface, and wherein a frame of the chain blade within an annular enclosed area and a frame outside the enclosed area are connected as a whole within the width of the excavation surface.   
     
     
         4 . A chain blade according to  claim 1 , wherein at least one of the cutters of the chain blade is integrally connected with chain links of multiple chains to enhance the strength and rigidity of the chain blade. 
     
     
         5 . A chain blade according to  claim 1 , wherein the chain blade comprises different types of cutters arranged on at least one of the chains to meet different requirements corresponding to the different respective types of cutters. 
     
     
         6 . A chain blade according to  claim 1 , wherein the chain comprises a concave universal joint and a convex universal joint.