采煤机平滑靴销轴载荷特性分析与实验

Analysis and Experimental Research on Load Characteristics of Smooth Shoe Pin of Shearer

平滑靴销轴是采煤机的关键零件,为研究采煤机平滑靴销轴在复杂工况下载荷特性,通过建立采煤机机身空间载荷模型,得到平滑靴销轴载荷计算方程。通过自行研制平滑靴销轴传感器,对采煤机不同截割工况下的平滑靴销轴载荷进行测试研究,通过无线应变采集模块对测试数据实时存储和传输,得到平滑靴销轴Z向和Y向的载荷曲线,实验测试结果表明:左侧平滑靴的最大受力为max F_Z=412.76 kN,max F_Y=248.28 kN,右侧平滑靴的最大受力为max F_Z=187.47 kN,max F_Y=897.98 kN,且在整个过程中,Z向载荷普遍大于Y向载荷,研究结果为平滑靴载荷测试提供了新方法,通过对平滑靴销轴载荷进行实时监测,可定量计算平滑靴销轴载荷大小,为采煤机平滑靴零部件设计和优化提供数据支持。

Smooth boots pin shaft is the key to the coal mining machine parts, for the study of coal winning machine smooth boots pin shaft under complex conditions load characteristics, through the establishment of coal winning machine airframe space load model, smooth boots pin load calculation equation is obtained. By the self-developed smooth boots pin shaft sensor, under different cutting conditions of coal winning machine smooth boots pin load test research, through the wireless strain acquisition module real-time data storage and transmission of the test, to get smooth boots pin Z and Y to the load curve, the experimental test results show that the maximum stress of the smooth boots at the left maxFz = 412.76 kN, maxFr = 248.28 kN, The right side of the maximum stress of the smooth boots maxFz = 187.47 kN, maxFr = 897.98 kN, and in the whole process, is generally larger than Y Z to load to the load, the results of the study provides a new way for the smooth boot load test, real-time monitoring of smooth boots pin load, quantitative calculation can be smooth boots pin load size, design and optimization of the coal winning machine smooth boots parts provide data support.