Chernyshenko A. Analysis of the operational suitability of boxwood bridge cranes by vibration diagnostics

Object of study: upper parts of crane wheels in various modes, taking into account the dynamic loads. Objective - Assessment of the mechanism of movement of box unit bridge cranes vibrodiagnostirovaniya methods. Methods: mathematical physics, measurements of the physical parameters of the bearings in the nodes of crane wheels, vibration and dynamic loads. Theoretical and practical results: a model of the crane to determine the vertical dynamic loads in the journal boxes and metal crane wheels, which can be used in the construction and design of overhead cranes. The methods of diagnosing and assessing the current state of the bearings in the nodes of crane wheels in terms of vibration, allowing to determine the current status and assess the efficiency of axle boxes and box bearings directly in the operation of the crane during the operating cycle can be used in the diagnosis of cranes in the industry. Scientific novelty: multimass built a dynamic model of the bridge crane to determine the dynamic forces in the metal crane and crane wheels in the journal boxes, all kinds of stress are determined by contact of curved bodies with different radii of curvature with the depth of their distribution, the distribution pattern obtained by friction and pressure rolling barrel-shaped spots on the rings in spherical roller bearings; First, the method of vibration diagnostics to analyze the current state of the bearings in the journal boxes mechanisms of movement of overhead cranes. Implementation: "NPF TRANSPROEKT" (Kharkov), Firm "BETA" (Kharkov), OOO "NPF TEHVANOGMASH" (Kupyansk).