FIELD: transport.
SUBSTANCE: excavator comprises running gear with rotary platform mounted thereon to support working tools, cabin, electrical equipment, turning, pressure and lifting mechanisms, the latter being equipped with lifting winch driven by two motors. Lifting winch reduction gearbox is divided into low- and high-speed parts. Low-speed reduction gearbox housing has annular ledges to lock housings of epicyclic units. Half-couplings are fitted on epicyclic unit input shafts while drive shafts of low-speed reduction gear are fitted in output carriers of epicyclic units and engaged by internal gearing transmission. Oil reservoirs of low- and high-speed reduction bears are composed of communicating vessels.
EFFECT: compact and reliable drive.
3 dwg
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