WORKING EQUIPMENT OF DRAGLINE EXCAVATOR Russian patent published in 1994 - IPC

FIELD: earth-moving, construction and mining machines. SUBSTANCE: additional strands of pull chains are secured to side walls 7 of bucket 1 in upper and lower parts. Additional strand 5 of pull chains is connected with its free end to additional strand 6 by means of connecting member 8. Free end of strand 6 is connected with pull chain 3. Connecting member 8 depending on operation procedure of dragline excavator connects different links of additional strands 5 and 6 that enables change of point of application of pull force resultant. EFFECT: regulated angle of cutting to have single-point digging system due to change of point of application of pull forces to bucket. 1 dwg