| Autor: |
Sun, Yousong, Li, Chunmei, Wang, Wanshun, Cheng, Yongqi, Wei, Liangmo |
| Předmět: |
|
| Zdroj: |
Journal of Mechanical Science & Technology; Jan2013, Vol. 27 Issue 1, p77-83, 7p |
| Abstrakt: |
To increase transmission efficiencies and bearing abilities of sliding screw pairs, a new type of screw nuts and their fabricating method were put forward. The nuts have the structure of steel backing/self-lubricating composite lining with the advantages of high bearing capacity and low friction coefficient. The lining material was composed of epoxy as the matrix and some additives: carbon fiber, graphite, MoS, firming agents and coupling agents etc. A suitable formulation was determined by experiments to meet lining requirements: high bounding strength, sufficient mechanical properties and good tribological properties. An injection molding set for fabricating the nut linings was designed and made to achieve even lining thickness along the thread surfaces during molding. Lubrication grooves on the nut thread surfaces were created during molding. In comparison with bronze ZQSn6-6-3, the friction coefficient of the composite nuts was reduced by 35% and the transmission efficiency increased by 30%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Full text from SpringerLink