基于压电俘能装置的刨刀受力检测系统

发布时间：2018-07-23 20:59

【摘要】：为实现刨煤机刨刀在作业过程中受力在线检测,克服刨煤机机身上安置电源难的问题,提出一种基于压电振动俘能的自供电受力检测系统。将刨煤机工作过程中的振动能量有效地转换为电能,保证检测装置和无线信号发射装置能够长期正常运行。通过多个周期测试表明,检测系统的自供电性能稳定,能够实现刨刀三向载荷的在线检测;并得到了100 s内三向载荷变化曲线,分析发现刨削阻力(Y向)、煤壁挤压力(X向)和煤壁侧向力(Z向)大小依次降低,且载荷波动性也呈现相同的规律,测试结果与实际工况相近,表明检测系统具有较高的精确度。
[Abstract]:In order to realize the on-line force detection of the planer in the process of operation and to overcome the problem of placing power source on the fuselage of the coal plough, a self-powered force detection system based on piezoelectric vibration capture energy is proposed. The vibration energy of the coal planer is converted into electric energy effectively, which ensures the detection device and wireless signal emitter can run normally for a long time. The results of several periodic tests show that the self-supply performance of the detection system is stable, and the on-line detection of the three-direction load of the planer can be realized, and the change curve of the three-direction load in 100 s is obtained. It is found that the planing resistance (Y direction), the coal wall extrusion pressure (X direction) and the coal wall lateral force (Z direction) decrease in turn, and the load fluctuation also presents the same law. The test results are close to the actual working conditions, which indicates that the detection system has a high accuracy.
【作者单位】：辽宁工程技术大学机械工程学院;大连理工大学工业装备结构分析国家重点实验室;四川理工学院材料腐蚀与防护四川省重点实验室;
【基金】：国家自然科学基金资助项目(51504121) 辽宁省高等学校杰出青年学者成长计划资助项目(LJQ2014036) 装备结构分析重点实验室开放基金资助项目(GZ1402) 材料腐蚀与防护四川省重点实验室开放基金资助项目(2014CL18)
【分类号】：TD421.62

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