基于TRIZ理论的液压挖掘机挖掘装置创新设计

针对现有液压挖掘机工作方式中存在大量的无效动作而影响挖掘效率的问题,采用TRIZ理论分析现有液压挖掘机的技术冲突,构建一对冲突特征参数,利用矛盾矩阵,获得对应的发明原理解,运用最优原理解设计了一种复合铲斗机构。通过对创新设计前后工作循环时间的对比分析,从理论层面验证了该创新设计能提高挖掘效率。最后,建立复合铲斗机构的数学模型,在MATLAB进行运动学仿真,验证了复合铲斗在工作过程中不会发生干涉。研究结果表明,基于TRIZ的液压挖掘机挖掘装置创新设计方案具有较高的可行性,提高了液压挖掘机的挖掘效率。

Innovative Design of Hydraulic Excavator Excavating Device Based on TRIZ Theory

Aiming at the problem that the excavation efficiency of the hydraulic excavator declined owing to existence of some ineffective action in the current excavator’s working mode.The TRIZ theory was used to analyze the technical conflicts of the existing hydraulic excavators.Then a pair of characteristic parameters of conflict was constructed,and the conflict matrix was used to obtain the principle solution of the corresponding invention.A composite bucket mechanism was designed by using the optimal principle solution.Through the comparative analysis of the working cycle time of the innovative design,it is proved that the innovative design can improve the mining efficiency theoretically.Finally,the mathematical model of the composite bucket mechanism was established,and the kinematics simulation was carried out in MATLAB to verify that the composite bucket would not interfere in the working process.The research indicate that the innovative design of the hydraulic excavator excavating device based on TRIZ theory is highly feasible and improves the excavation efficiency of hydraulic excavator.