Design Of Deep Loosening Machine And Finite Element Analysis Based On CATIA

In recent years, with the growing competition in the market, the speed of development on agricultural machinery products have become one of the factors of competition among enterprises. While the traditional agricultural machinery were lack of market competitiveness due to the long development cycle, high cost and serious aging product. To solve these problems, the gradual development of virtual prototype technology has been provided a powerful tool and instrument. In order to solve the existing problems of research and development on agricultural machinery, the introduction of virtual prototyping technology on the design and development field of subsoiler, can greatly improve the speed of design, reduce the costs and provide an effective way for the development of agricultural products. The paper discussed mainly from the following aspects:Firstly, it introduced the necessity of mechanized subsoiling and the research status at home and abroad.Secondly, it introduced the key component of subsoiler (soiling shovel) in detail, and gave a theoretical analysis and subsoiling soil dynamics analysis on soiling shovel.On this basis, using three-dimensional parametric modeling software CATIA solid modeling the various parts, and completed the whole assembly of the subsoiler, displayed the assembly of all components on subsoiler in a more intuitive way and generate a two-dimensional map at the same time. It provided a reference for the formulation and assembly path of the physical production and improved the speed of design effectively.At the same time, it studied the principle of system simulation, and using CATIA DMU to simulate the movement simulation of subsoiler.In order to fully understand the force status of the key components on subsoiler during operation, gave the finite element analysis on soiling shovel, security bolts and suspension device by ANSYS Workbench 11.0. And compared the stress and deformations on the two different soiling shovel, which one is with wing and the other is without wing; and gave a stress analysis on safety bolt, analyzed the withstand force of security bolts. And then gave the stress analyses on suspension device.Finally, gave a test on each indicator of the subsoiler in GangJi experimental field of Anhui agriculture science academy. Field tests showed that the design of subsoiler was reasonable, the structure was simple. And it was safe, reliable and easy to adjust. The depth of subsoiling could be arbitrarily adjustable between 250mm --- 400mm. The operation of subsoiling could break the plow fully and improve the capacity of soil water conservation.