The Finite Element Analysis And Virtual Prototyping Simulation Of The New Digging Machine

As we all know, China is a big country, however, short of forest resources and its forest coverage rate is far behind the level of the other countries in the world. There is certain direct or indirect relationship between the forest resources shortage and the greenhouse effect, air pollution, biodiversity, desertification, soil erosion, selva crisis, etc. China is one of those countries who suffer the largest influenced areas and the most severe desertification. Recently, Our country has gradually attached more significance to this issue, therefore afforestation has tended to become the public consciousness.The digging machine is the important equipments for planting trees, which directly affect the level of our country’s forest resources. Currently the digging machine basically adopts digging head for screw, three point type lifting mechanism and power of tractor hanging type. Its main characteristics are that the whole structure is simple and the cutting tool is complex and can not be replaced. However, it also has demerits. The lateral pressure produced by digging head will lead to constant tractor shaking and vibration, and also cause working resistance, instability and practical scope restrictions. In order to solving these problems of traditional digging machine, this paper will research and development a high performance, low cost, high efficient working type digging machine for planting tree. This new type regards engine as power, changes the original stereo cutter to plane one in order to save the space. Theoretically, this paper adapts modern design skill CAD/CAE and the finite element analysis method, aiming at analyzing the statics, dynamics and the kinematics simulation of the main pare. Based on Virtual Prototype Technology, this paper uses Pro/E3D software to build3D solid model of digging machine in order to represente represent working status of the digging machine. Through this method, the designers can make the most use of their creativity to process digging machine mechanical structure design and structure analyse, thereby resulting in improving the quality of the product and cut the cost. At last, we manufacture the prototype and check its digging soil characteristics.