基于ProE的液压挖掘机工作装置运动仿真(Kinematic simulation of hydraulic excavator working device based on ProE).docVIP
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基于ProE的液压挖掘机工作装置运动仿真(Kinematic simulation of hydraulic excavator working device based on ProE)
基于ProE的液压挖掘机工作装置运动仿真(Kinematic simulation of hydraulic excavator working device based on ProE)
In recent years, the hydraulic excavator with the functions of mining and loading has been used more and more in infrastructure construction and civil building construction. The hydraulic excavator working condition is bad, the working device faults, resulting in poor working reliability of the whole machine, so the reliability of the excavator design and optimization has become a key and difficult point of domestic excavator design.
This paper made a 22T excavator as an example, discussed in the Pro/E software environment, the 3D modeling, the working device of hydraulic excavator virtual assembly, motion simulation and dynamic simulation, in order to evaluate the design scheme of new type excavator manufacturing, physical prototype provides effective reference data.
1 the establishment of excavator virtual prototype
1.1 the establishment of 3D parts model of excavator
Generally speaking, in the Pro/E software environment, the 3D modeling of the mechanical system should be carried out in strict accordance with the design concept or the previous drawings, and try to keep the integrity and correctness of the 3D graphic data. Due to the finite element dynamic analysis and the working device of hydraulic excavator is analyzed, so the modeling principles are: modeling of excavator working device comprises a movable arm, try to refine the bucket rod internal ribs should be modeled in detail, and in addition to work outside the facility components, is as simple as possible when modeling, such as rotary the platform, a driving device just outline the external shape and internal details with drawing, but in the dynamic analysis, the inertia and quality according to the design data. The process of building the virtual prototype of the excavators work device is shown in figure 1.
1.2 virtual prototype assembly of excavator
The virtual prototype model of a 22T excavator made in China
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