Vol.1, No 8, 2001 pp. 1057 - 1064
UDC 620.178.16:66.068
INVESTIGATION OF THE PRESS FIT
JOINTS
BY THE TRIBOLOGY ASPECT
Dušan Stamenković, Slobodan Jovanović, Miloš Milošević
Faculty of Mechanical Engineering, University of Niš,
Beogradska 14, 18000 Niš,Yugoslavia
E-mail: dusans@masfak.ni.ac.yu;
slojo@masfak.ni.ac.yu; mmilos@masfak.ni.ac.yu
Abstract. The strength of a press fit joint represents static friction
force that is the biggest force that can be transmitted by means of this
joint. The real strength of a press fit joint can only be determined by
loading the joint up to the moment of parts separation. However, in projecting
phase of engineering practice calculation of the press fit joint strength
is often necessity. In order to reliable estimate the press fit joint strength
it is necessary to know real value of static friction coefficient. Calculation
method of press fit joints as specific tribomechanical systems with experimental
investigation of their friction coefficient values is given in this paper.
Key words: tribology, press fit joints, friction force, friction
coefficient.
ISTRAŽIVANJE PRESOVANIH SPOJEVA
SA TRIBOLOŠKOG ASPEKTA
Nosivost presovanih spojeva predstavljena je silom statičkog trenja koja
predstavlja najveću silu koja se može preneti ovim spojem. Stvarna nosivost
presovanog spoja se može jedino odrediti opterećivanjem spoja do trenutka
razdvajanja delova u spoju. Međutim, u inžinjerskoj praksi je veoma često
neophodno u fazi projektovanja sračunati nosivost presovanog spoja. U cilju
da se što pouzdanije proceni nosivost presovanog spoja potrebno je poznavati
stvarnu vrednost statičkog koeficijenta trenja. U ovom radu je dat tok
proračuna presovanih spojeva kao specifičnih tribomehaničkih sistema zajedno
sa eksperimentalnim istraživanjem vrednosti njihovih koeficijenata trenja.
Ključne reči: tribologija, presovani spojevi, sila trenja, koeficijent
trenja.
