Planetary Speed Reducers: Efficiency, Backlash, Stiffness
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Advantages of planetary speed reducers are well known and due to their compact design and power density they are suitable for a wide range of applications. Efficiency is becoming more and more a main concern in the design of power transmissions and the demand for high efficiency gearboxes is continuously increasing. Moreover, in advanced applications that require a kinematic train with high positioning accuracy, low backlash and high rotational stiffness are also required. In any case data of efficiency, backlash and stiffness must be known in order to model the behaviour of a transmission system. For this reason a testing campaign have been conducted, in order to characterize these aspects for the low-backlash Tecnoingranaggi planetary speed reducers, a brand of the Bonfiglioli group. The test program have enabled a deeper knowledge of the functional behaviour of the gearboxes of this family providing useful data to validate models of efficiency.
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Influence of lubricant temperature, lubricant level and rotational speed on the churning power losses in an industrial planetary speed reducer: computational and experimental study Concli F; Gorla C (2013)Planetary speed reducers are applied in a wide range of applications. Their main advantages are the compact design and high power density. For this reason, the demand for high efficiency gearboxes is continuously increasing ...
Gorla C; Concli F; Arigoni R; Musolesi M. (2011)Tecnoingranaggi, azienda del Gruppo Bonfiglioli, nel contesto dello sviluppo continuo dei propri prodotti, ha condotto una ricerca in collaborazione con il Politecnico di Milano con l’obbiettivo di ottimizzare le prestazioni ...
Analysis of power losses in an industrial planetary speed reducer: Measurements and computational fluid dynamics calculations Concli F; Conrado E; Gorla C (2014)In this work, experimental and theoretical analyses of the power losses in an industrial planetary speed reducer were performed in order to define the weight of the different types of power losses in the global efficiency ...