Deng Xingqiao

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.

Study on the tooth profile and meshing equation of the anti-backlash double-roller enveloping hourglass worm with errors

The mismatched errors of the anti-backlash double-roller enveloping hourglass worm (ADEHW) plays a very critical role on its performance, but the influence of errors on ADEHW are rarely reported in available literatures, and the most important thing that we concerned is how to acquire the meshing equation and generate the tooth profile of ADEHW involving errors. Therefore, the new anti-backlash double-roller enveloping hourglass worm tooth profile equation which involved the grinding wheel radius, angular position error of the worm wheel axis, the centre distance errors and the shaft angle was established for the first time in order to study the effects of worm parameters on the worm tooth profile by using the theories of differential geometry and gear meshing. A new method to acquire the contact line of worm was presented by using the corresponding computer program and dichotomy. The real tooth surface was acquired based on the Pro/E software using the contact helix line equation and the three-dimension (3D) geological modeling of the Anti-backlash double-roller enveloping hourglass worm was established. The results obtained show that the formula established of worm tooth profile is important to analysis the characters of gearing mesh and parameter.

Designing of autonomous humanoid robot soccer system

Robots can be as flexible and smart as human beings, which has been the dream of a number of scientists and science fiction writers. The emergence of humanoid robots and the research of artificial intelligence and related technologies are the major step to realize the dream. This paper presents a framework design of autonomous humanoid robot soccer system based on the analysis of autonomous humanoid robot soccer system. We designed the control system of upper machine and lower machine, the upper and lower machine communicating via Bluetooth, processed the original image using the Kalman filtering algorithm, and proposed a four step reasoning model based on the six step reasoning model. Large number of experiments shows that the robot soccer system has good stability and strong competition ability.