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Damping System Design And Wood Case Modeling Process Of The Forestry Walking Robot

Posted on:2013-06-15Degree:MasterType:Thesis
Country:ChinaCandidate:L FuFull Text:PDF
GTID:2248330374972937Subject:Mechanical design and theory
Abstract/Summary:PDF Full Text Request
With the rapid economic development, degree of automation of the processing machinery is increasingly high, and people are gradually starting to focus on the level of mechanization and automation to improve the efficiency of forestry operations. However, China’s forest terrain and operating environment is complicated, so the originally developed walking machinery by wheeled or tracked has many drawbacks. Such as the wheeled equipment was limited to the horizontal direction of movement and the traction largely dependent on gravity which is not suitable for rough or soft terrain. Tracked equipment is comparison well in the terrain adaptability, but the ability to obstacle is rather poor. Design a new means of transport machinery to adapt to complex ground in the forest environment will have a broad market space.This article discusses the domestic and international research status and development trend of the walking robot on the basis of the walking robot at home and abroad, and analyzed the structure and working environment of the walking robot, and then the actual program of the new walking mechanical was proposed. By means of the machine structural characteristics, design requirements and parameters of analysis, the overall design was carried out from the power agency, the damping institutions, running gear, rack and steering institutions. Principle analysis was made in the cam damping institutions, and the ANSYS finite element analysis and nonlinear calculation of the cam were carried out in the course of the campaign, through which the danger area and deformation displacement of the cam mechanism has been obtained, and the theory was validated in order to achieve the mobile walking mechanical walking stability in the forest.The wood case assumptions of the shell on the electronically controlled walking machine was made, the mechanics model of the shell was established based on the shell strength of the forest walking mechanical requirements, and the shell strength was analyzed in the role of the impact force. Though the analysis of the structural characteristics on the wood case shell, the making material of the shell was determined and the prototype production was completed. After the completion of the shell surface treatment, the reasons that affect the surface quality were analyzed.Finally, the three-dimensional model of the electronically controlled walking machine was established in the Pro/E environment, and the simulated motion simulation of the model has been made through the dynamic assembly model, which provided guidance to improve and perfect the whole structure. The appearance design was carried out according to the shape of the internal structure, which beautified the appearance of the product, improved the competitiveness of products in the market, and promoted the mass production and market promotion of the walking machine.The design of this paper provided a research platform for the mobile device in the forest, provided a theoretical basis for the research and development of machinery in the forest, and provided a new idea for the development of the shell material of mobile machinery. As the forestry mechanization more and more perfect in the future, the electronically controlled walking machine will has a good market prospects as its good obstacle and environmental performance.
Keywords/Search Tags:Forestry Walking Robot, System Design, Damping Institutions, FiniteElement Analysis, Analog Simulation
PDF Full Text Request
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