The study and analysis of a new Anti-backlash worm gear

In this paper, a new kind of the anti-backlash double-roller enveloping hourglass worm (ADEHW) with line contact between intersecting axes has been studied by means of the theory of gearing and the space engagement theory for the first time. The engagement equation and tooth profile equation have been derived by applying the theory of gearing. Meanwhile the important factors that impact the performances of the worm were numerical calculated analysis. Based on the developed mathematical model of the Anti-backlash Double-roller Enveloping Hourglass worm, computer graph of the gear set has been designed by applying Pro/Engineering. The study results show that the new kind of Anti-backlash worm gearing has the advantage of big carrying capacity and high efficiency, The most important is that can solve the problem of Anti-backlash on the worm gear.