TY JOUR TI HYDRAULIC EXCAVATORS AND CRANES WITH MODULAR DRIVE MECHANISMS KW hydraulic excavator KW crane KW turning mechanism KW winch mechanism KW unification KW block module KW planetary gear KW hydraulic motor JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Uvarov, V.A. AU Kaytukov, B.A. AU Skel, V.I. PY 2020 IS 5 PB Belgorod State Technological University named after V.G. Shukhov