ETD system

Electronic theses and dissertations repository

 

Tesi etd-10132014-121356


Thesis type
Tesi di laurea magistrale
Author
BONUCCI, ALESSIO
URN
etd-10132014-121356
Title
Viti a Ricircolazione di Sfere - Soluzioni Innovative
Struttura
INGEGNERIA CIVILE E INDUSTRIALE
Corso di studi
INGEGNERIA DEI VEICOLI
Commissione
tutor Ing. Biagetti, Giuseppe
tutor Dott.ssa Pacieri, Francesca
tutor Ing. Pizzoni, Luciano
relatore Prof. Frendo, Francesco
Parole chiave
  • ballscrew
  • seal
  • cooled nut
Data inizio appello
10/12/2014;
Consultabilità
completa
Riassunto analitico
Ball screws are a marking point for handling systems in which efficiency, precision and reliability are key elements. In this context, it is of great interest the use of seals characterized by high performance, capable of exerting a low friction torque, while retaining a high quantity of lubricant and protecting the system from the entrance of contaminants. As part of the thesis project, innovative seals were developed, whose performances have been measured by means of appropriate tests and then compared with the results provided by traditional systems. In the second part of the thesis work, focus has been given to applications for ultra high speed axes. In this particular case, the analysis mainly focused on the reduction of operating temperatures. Two different types of nuts with liquid cooling have been considered, one of which has been carefully designed and produced. Performances have been compared and measured by means of finite element simulations and experimental analysis.
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