EBZ220型掘进机铲板在使用中的结构性能研究

Research on Structure and Performance of Shovel Plate of the EBZ220 Roadheader in Use

为解决掘进机铲板在使用过程中出现的结构变形、结构开裂等失效问题,以EBZ220型掘进机为例,根据掘进机的结构组成特点,建立铲板的三维模型和仿真模型,对铲板在使用过程中的结构性能进行有限元分析研究。得出研究结论:左右两侧铲板、中间主铲板的前端及铰接耳处等区域是整个结构的薄弱部位,极容易率先出现结构失效现象。根据此研究结果,从结构尺寸、材料属性、热处理加工等方面,对铲板进行了结构优化改进,以提高铲板的结构性能及使用寿命。

In order to solve the structural deformation, structural cracking and other failure problems of roadheader shovel board in use, taking EBZ220 roadheader as an example, according to the structural characteristics of roadheader, the three-dimensional model and simulation model of shovel board are established, and the structural performance of shovel board in use is analyzed by finite element method. It is concluded that the left and right spade plates, the front end of the middle main spade plate and the hinge ear are the weak parts of the whole structure, and it is very easy to lead to structural failure. According to the research results, the structure of the shovel plate is optimized and improved from the aspects of structure size, material properties, heat treatment processing, etc., so as to improve the structure performance and service life of the shovel plate.