中大马力推土机松土器结构优化设计

The Structural Optimization Design of Large Horsepower Bulldozer Ripper

介绍了推土机松土器的结构形式及作业特点。设计了新结构松土器并绘制三维模型。对比了新结构松土器与传统松土器,介绍了新结构松土器的优点。对新结构松土器在两个工况下的载荷情况进行了研究,基于计算载荷,对松土器进行了动力学仿真。通过仿真,得到了油缸和连接点的最大受力工况。基于仿真结果,对松土器关键部件进行了有限元分析,得到了关键部件的最大应力值和最大变形量,分析结果显示,新结构松土器强度满足要求。应用Pro/E对松土器的最大提升高度和最大下降深度进行了模拟。对比了新结构松土器与传统松土器的作业速度,结果显示,新结构松土器的作业速度要优于传统松土器。思路为类似产品的改进提供了借鉴。

The formal structure of the bulldozer ripper and operating characteristics were introduced. The new structure ripper was designed and the 3D model was drawn.The new structure ripper was compared with the conventional ripper, and the advantages of the new structure ripper were introduced. The load conditions of the new structure ripper were studied. A dynamic simulation was carried on the ripper based on the calculated load. Through simulation, the maximum farce of the cylinders and the connection points were got. Based on the simulation results, the finite element analysis was carried on the main parts of the ripper, and the maximum stress and the maximum deformation were obtained, and the results showed that the strength of the new structure met the requirements of the ripper. And the ripper maximum lifting height and maximum depth was simulated by Pro/E. And the operating speed of the two kind of ripper was compared, and the results showed that the new structure ripper＇s operating speed was superior to the traditional ripper. The idea of it provided learning for a similar product＇s improvement.