Abramov S. Improvement of operational characteristics and properties of collector nodes on the basis of improvement of technology of production of lamellae

The dissertation is devoted to a new approach to solving the problem of increasing the operational characteristics and properties of collector nodes, due to the optimization of the activation of the lateral surface of the copper lamella, which is processed by the jet-abrasive method. The main disadvantages of traditional methods of obtaining a profile of copper lamellae are low bearing ability side surfaces, due to errors in corner dimensions. This is due to the fact that traditional technologies for producing profile slats - rolling, drawing, milling and others do not provide the required accuracy and quality of the profile. Therefore, the development of technologies that provides compensation for errors in the geometric dimensions and shape of copper lamellae is an actual scientific and practical task of engineering technology. Based on the established regularities of the processes of contact interaction of the lateral surfaces of copper lamellae with plates of mica, it is determined that the effective values of triboindicators are achieved during finishing-forming treatment of the surfaces of lamellae by the jet-abrasive method. For the first time, the regularity of the effect of roughness on the durability of collector knots is determined and the rational zone of the roughness of the lateral surfaces of lamellae is established. This allowed to obtain a significant advantage in the manufacture of a collector profile with less precision, which in turn prevents the radial displacement of collector lamellae in a clutch with plates of mica, which retains the relief of the contact surface of the collector, and contributes to improving the process ability and reliability of the resource of the collecting node.