Dipper door and dipper door trip assembly

摘要

A mining machine includes a boom, a handle coupled to the boom, a dipper coupled to the handle, and a dipper door pivotally coupled to the dipper. The mining shovel also includes a dipper door trip assembly including a trip motor coupled to the boom, a trip drum coupled to the handle, a linkage assembly coupled to the dipper door, a first actuation element extending directly from the trip motor to the trip drum, and a second actuation element extending directly from the trip drum to the linkage assembly. 5805011_1 (GHMatters) P98156.AU LYNT I/Icl C:) CD. C) co cr) Cj o 4:1 0 co o o o G 0 0 -0 zz - =3 cy')