ローラ・チェイン伝動に於ける回転むらの研究(第4報)

回転むらの除去法について

抄録

In order to eliminate the uneveness of transmission by roller-chain, three methods of elimination were studied theoretically and some experiments were carried out for testing the performance of a method which was considered to be most effective among these three methods. The principle of this method is to linearize the vibrational character of the roller-chain driving system and to absorb the uneveness of transmission at dynamic region by deflecting the tight strand of the roller-chain by leaf spring.
In these experiments, it was clarified that the absorption of the uneveness of transmission was done when following conditions were satisfied, i.e. (1) The deflection of the roller-chain was larger than a finite value determined from experiment. (2) The frequency of the uneveness of transmission which was the object of absorption was higher than the natural frequency (formula 6) of the roller-chain driving system. (3) Suitable damper which damps the free oscillation of the roller-chain driving system was applied. (4) The mass of the tight strand of the chain was smaller than the equivalent mass of sprocket wheels.