| The essay summarizes the status and developing directions of the working device of loader and its important impact on the national economy.Analyzed the status of loader in our country.This essay use software of Pr/E to built up the model of working mechanics. of loader and use ANSYS to analyze the distribution of strain of working mechanism.Facing more intense global market competition, manufacturing enterprise have to adjust their product design and fabrication mode frequently to meet the rapidly changing market requirement. In order to improve the traditional construction machinery design process, this dissertation presents and studies Computer Aided Design (CAD) technology, which has been approved to be a powerful method. And then introduces the new technology into the field of loader design to satisfy the urgent requirement of domestic construction machinery enterprise. In this article the research on a typical working mechanism of loader has been made, and the fire-new and integrated locomotion mathematic modeling of the working mechanism The working mechanism was locomotion simulated by Pro/Engineer and the strain of the key part of the working mechanism was analyzed By ANSYS.There are four parts presented and studied as following:1.the development developing trend of loader and its working mechanism are introduced. Then, Computer Aided Design (CAD) technology and finite element method are also introduced.2. The movement regulation and the structure characteristics of the working device are analyzed by building up mathematics model.3. Make use of the Pro/Engineer software to simulate the movement of the work device from digging to discharging.The get key data of the whole processes of movement,the value of the speed and acceleration. 4. Make use of the ANSYS software to make a analysis about strain distribution of working device.5. Make use of the ANSYS software to make a optimization design about working device to cut down the manufacture expense.
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