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Drive device for backrest supported printing roller of gravure printing unit has machine frame, electric drive, whereby electric drive and shaft passage are arranged on carriage, which is arranged at machine frame
Drive device for backrest supported printing roller of gravure printing unit has machine frame, electric drive, whereby electric drive and shaft passage are arranged on carriage, which is arranged at machine frame
Drive device has a machine frame (2), electric drive (3), coupling (4), which has a journal location (5) for shaft journal of a printing roller (1) and has hydraulically operated clamping chuck within the journal location. The electric drive and the shaft passage (8) are arranged on a carriage (14), which is arranged at the machine frame, to be linearly adjustable in axial direction of the shaft. A shaft (6) is arranged between the electric drive and the coupling, contains a drilling (7) in the shaft axis for hydraulic fluid. A shaft passage with a housing (9), which has a supply channel (10) for hydraulic fluid, whereby the axial drilling of the shaft stands in fluid connection with hydraulic channels of the coupling and the hydraulic fluid can be supplied through the supply channel of the housing and a radial hole (11) in the shaft.
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