CAJ | 학술논문

为实现对刮板输送机运行过程中链条张力的有效检测,克服供电模块需要定期拆卸更换的难题,提出了一种基于压电振动俘能自供电的刮板输送机张力检测系统.通过采集刮板运行过程中产生的振动能量实现电能的有效转换,保证张力检测装置和无线信号发射装置长期有效工作.通过系统多个周期张力检测实验结果表明,检测系统自供电性能稳定;截取103 s的单周期进行分析,刮板经过链轮时的最大张力峰值为274.2 kN,通过计算两端部啮合点张力的差值得到下边链的运行阻力为12 kN,测试结果符合现场实际工况,表明系统具有较高的检测精度及可靠性.
위실현대괄판수송궤운행과정중련조장력적유효검측,극복공전모괴수요정기탁사경환적난제,제출료일충기우압전진동부능자공전적괄판수송궤장력검측계통.통과채집괄판운행과정중산생적진동능량실현전능적유효전환,보증장력검측장치화무선신호발사장치장기유효공작.통과계통다개주기장력검측실험결과표명,검측계통자공전성능은정;절취103 s적단주기진행분석,괄판경과련륜시적최대장력봉치위274.2 kN,통과계산량단부교합점장력적차치득도하변련적운행조력위12 kN,측시결과부합현장실제공황,표명계통구유교고적검측정도급가고성.
In order to realize the effective detection for the chain tension of scraper conveyor in the process of run-ning,and overcome the problem of power-supply module which needs regular disassembly and replacement,pro-pose a kind of self-powered tension testing system for scraper conveyor based on piezoelectric vibration energy har-vested. realize the effective conversion of electrical energy by collecting the vibration energy produced in the run-ning process of scraper,ensure the long-term effectiveness working of tension detection device and wireless signal launcher. Through multiple cycles tension detection of system,the experiments show that,the self-powered perfor-mance of testing system is stable;intercept 103 s for the analysis of single cycle,the maximum tension peak value is 274.2 kN during the scraper running through the sprocket,the running resistance of lower chain is 12 kN which is got by computing the meshing point tension difference of both ends,the testing results fit the actual working condi-tion,it shows that the system has higher test accuracy and reliability.