Vol.1, No 10, 2003 pp. 1289 - 1298
UDC 621.83:62-272

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FUNCTIONAL OPTIMIZATION OF THE CAM MECHANISMS THROUGH USING HELICAL SPRINGS
WITH VARIABLE GEOMETRY
R. Militaru, E.-Ch. Lovasz
"Politehnica" University of Timişoara, Bv. Mihai Viteazu, 1, 1900 Timişoara, Romania
E-mail: rmilitaru@omm.mec.utt.ro, lovasz@mec.utt.ro

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Abstract. By using springs that have a progressive (non-linear) elastic characteristic, the contact between cam and cam follower can be ensured on the whole cycle. The values of the resulting force acting on the cam follower can be reduced, as well as the values of the resistant torque reduced to the cam's shaft, respectively to the actuating motor's power.
Key Words: Cam, Cam Follower, Spring, Variable, Geometry.

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OPTIMIZACIJA RADA BREGASTIH MEHANIZAMA
PRI UPOTREBI HELIKOIDALNIH OPRUGA
SA PROMENLJIVOM GEOMETRIJOM Pri upotrebi opruga sa progresivnom (nelinearnom) elastičnom karakteristikom, kontakt izmedju brega i sledbenika može biti osiguran preko celog ciklusa. Veličina rezultirajuće sile koja deluje na sledbenik može biti smanjena, a takodje i vrednost opirućeg momenta reduciranog na breg, odnosno vrednost snage "pogonskog" motora.