EVALUATION OF THE RELIABILITY OF «GANZ» PORTAL CRANE MECHANISMS

Portal cranes are widely used in various ports for transhipment operations. However, today the river and sea of Ukraine, more than 88% have fulfilled standard service life continue to be operated. Since portal main link technological process, therefore, productivity Port lines depends on their reliable trouble-free operation. The analysis statistical data shows that processing long-term operation mode intense cyclic loading leads formation fatigue defects subsequent failure components accidents [1-9]. Therefore, ensuring safe is one tasks design, modernization cranes. works] showed reliability crane mechanisms been soldered 35 years has not sufficiently studied. For research, 24 identical Ganz with a lifting capacity 16 tons were selected, which operate clamshell ports. uses information contained respective maintenance repair logs from 2008 2021. Data greatest number failures observed movement, lifting, changing boom departure metal structures It should noted up 75% all time spent restoring reducers. reasons movement are: wear gears shafts gearboxes, destruction bearings cracks gearbox housings. reach caused by teeth racks gears, gear housings mechanism.