Design And Research Of The Key Parts Of An Amphibious Robot

Energy is essential for the development of a country’s material conditions, people began to use coal, stone and other fuels at the beginning of the industrial revolution, the use of fossil fuels has been 300 years of history, since twentieth Century, the third industrial revolution is sweeping the world, science and technology is changing human life and destiny at the same time, also in consumption a large number of the earth’s resources, since 1900, the energy consumption was the explosive growth of global energy consumption has increased by about 30 times, most of the energy for fossil fuels, these fossil fuels are not renewable energy, these fuels will damage the environment and the way of using the combustion will produce a large number of pollutants in the mining process that caused a series of environmental problems, harm to human health. Experienced 30 years of development by leaps and bounds of reform and opening up, China’s total energy consumption has been ranked first in the world, accounting for about 11% of the world’s total energy consumption, which oil external dependence degree was 45.2%, energy security is related to national security and social stability. As a result, the country in 18 big reports proposed the "marine power" strategy, the development of marine resources become to get rid of the important direction of China’s energy bottleneck, but marine resources by the environmental factors limit makes it prohibitive, such as most of the coastal environment for the human is unable the normal work of beaches and marshes, so it is necessary to robot to complete some human can not complete the work. Current robot research direction is intelligent household and industrial use and for field ability of practical amphibious amphibious robot research is not a lot.This paper according to the national Twelfth Five Year Plan of maritime strategy and high-tech development planning policy studied at present at home and abroad of the amphibious robot the latest achievements, summarizes the problems existed in the present some amphibious robot proposed a new amphibious amphibious robot design scheme, namely a planetary gear type dynamic web paddle amphibious robot. The switching mechanism of the amphibious robot need only by moving web paddle as the walking mechanism can complete water and land on the forward, backward, turn, a series of action, this design does not require complex can be greatly improved amphibious robot work efficiency.This paper mainly for the following work: study the recent typical amphibious robots in domestic and foreign, found the shortcomings and deficiencied of these robots, it prospected the development and application of amphibious robots at the end of paper. The mechanical structure of an amphibious robot was designed at the second chapter, the amphibious robot body structure is divided into two parts, the whole structure and paddle wheel structure is important,the calculation of gear transmission is mainly about the walking mechanism design, at the end of this chapter, simulated the body resistance of the body in water by Fluent, but also with the dynamics simulation software RecurDyn to simulated the dynamic walking mechanism, through the simulation of the planetary gear results proved the feasibility and practicability of the design of walking mechanism.In the third chapter of the paper, it referenced to the theories of ship, the amphibious robot stability in water is divided into three parts: stability at large angles of inclination, small angle stability and dynamic stability, calculate the amphibious robot in the fluid resistance in water and the maximum overturning critical angle. The last chapter mainly expounded the production process of amphibious robot model, did experiments on land and water, tested amphibious robot speed, climbing ability,main design parameters was tested by experiment, tested the capability of the stability and efficiency of an amphibious robot, automatic switch under different speed on land and water environment, compared the final experimental results with amphibious robot design index,it confirmed the experimental prototype reached the initial design performance finally, the paper summarized and analyzed the problems existing in the design and manufacture of model, accumulated valuable experience for the design and fabrication of the later prototype.