Tối ưu hóa hộp giảm tốc trong xe lăn điện bằng phương pháp hàm thể tích

Abstract

Currently, most wheelchairs used by people with disabilities often have simple structures and functions, mainly utilizing human power to operate, or do not have the function of climbing stairs. In the world, as well as in Vietnam, there have been studies on electric wheelchairs to climb stairs, but most of them just remain at the design manufacture and testing in the research laboratory, and no electric wheelchairs to climb the stairs are commercialized in the market. In the stair climbing electric wheelchair, the gearbox is one of the most important components. Up to now, the research and design optimization of the reduction gear box for the electric wheelchair to climb stairs has no been interested. This paper aims to determine the optimal gear ratio of the helical gearbo. to achieve the smallest gearbox volume suitable for the electric wheelchair model. To solve this problem, the paper has applied analysis and experimental planning method of all 4 input factors. The influence of the input factors on the optimal transmission ratio has been evaluated and analyzed. A regression equation to determine the optimal gear ratio has also been proposed. Furthermore, a regression model to calculate the best gear ratio has also been proposed. The proposed model is also proved to be very consistent with the experimental data. Finally, by applying the optimal value of this optimization results, it is used to design a realistic electric wheelchair model that operates stablv.