新型漸開線少齒差行星減速器的設(shè)計(jì)研究
[Abstract]:In this paper, a new involute planet reducer with small tooth difference is studied, which has the advantages of high stiffness, high efficiency and small volume. On the basis of studying and optimizing the existing involute planet reducer with small tooth difference, a new structure of small tooth difference planet reducer with double eccentric crankshaft is proposed in this paper. The structure makes full use of the principle of low tooth difference transmission, adopts double eccentric crankshaft instead of traditional single eccentric crankshaft and balance block, and offsets the inertia force produced in the operation of small tooth difference mechanism by installing two same double gears on the double eccentric crankshaft. It reduces the adverse effects of vibration, noise, heating and so on. In this paper, the displacement coefficient of the internal meshing gear pair of a new involute planet reducer with small tooth difference is selected by using the closed graph method, and other related parameters of the gear pair are calculated. Thus, the overall design of the new involute less tooth difference planet reducer with deceleration ratio 30 is completed. The static analysis of the crankshaft, gear pair and the whole machine of the virtual prototype of the reducer is carried out by using ANSYS software, and it is concluded that the structural stress and deformation of the reducer fully meet the design requirements. The modal analysis of the virtual prototype of the reducer is carried out by using ANSYS software. It is concluded that the natural frequency of the reducer is much higher than the input frequency and will not produce resonance. It is proposed that attention should be paid to strengthening the rigidity and strength of some key components in the design. A new type of involute planet reducer with small tooth difference is manufactured and the efficiency experiment is carried out. the efficiency of the reducer prototype can reach 86.2%. The main innovation of this paper is to study and optimize the structure of involute planet reducer with small tooth difference. The single eccentric crankshaft is designed as the structure of double eccentric crankshaft, which simplifies the structure of involute planet less tooth difference reducer. The performance of the whole reducer tends to be excellent. The design method of a new series of involute planet reducer with small tooth difference is summarized.
【學(xué)位授予單位】:浙江工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2012
【分類號(hào)】:TH132.46
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