机械专业英文文献翻译---基于现代设计方法的矿井提升机内在安全性的研究(编辑修改稿)

机械专业英文文献翻译---基于现代设计方法的矿井提升机内在安全性的研究(编辑修改稿)内容摘要：

t its shortings are obvious. Its electrical circuit is too plicated, multiline, causing hoist parking and accidents occurred due to electrical fault. With the puter and digital technology, to form a digital hoist control system of PLC has bee possible. PLC control system has high control precision, parameter stability, simple hardware structure, selfdiagnostic capability and munication working function. Mine hoist control system based on PLC technology structure shown in Figure 2, mainly including the following ponents: the main plc control circuits, hoist route detection and display circuits, speed detection, and signal circuits. The PLC of the main control circuits uses Mitsubishi FX2N series in Japan which more domestic applications. Figure 2 PLC electric control system D. Monitoring system design To ensure safe operation of the hoist, except for selecting the reasonable operation design parameters, the use of advanced control system, should also monitor the technological parameters on regular, conscientiously do performance test work to master the hoist performance, discover the defects in time, eliminate hidden danger, avoid unnecessary losses. In addition, the hoist operation state can be improved to work in the best conditions based on test data. Therefore, the hoist could work safely, reliably, have high efficiency, and extend its work life. Virtual instrument technology is puterbased instrumentation and measurement technology, is loaded some software and hardware on the puter with similar appearance and performance of the actual independent instrument. The user operating the puter, like manipulating a especially conventional electronic devices designed theirs. The essence of virtual instrument technology is that hardware softwarized technology, take full advantage of the latest puter technology to implement and expand the functions of traditional instruments. LabVIEW (laboratory virtual instrument engineering workbench) is a graphical programming and development environment, also known as G language. It is widely used by industry, academia and research laboratories, accepted as the standard data acquisition and instrument control software. LabVIEW not only provides and plies with all the functions of hardware and data acquisition cards munications of GPIB, VXI, RS232 and RS485 protocol, and builtin library functions support for TCP / IP, ActiveX and other software standards. The software for scientists and engineers is a programming language, it provides a simple, intuitive graphical programming mode, saves a lot of development time, has plete function, best embodied style of virtual instrument. In response to these circumstances, developed a mine hoist Integrate Performance Monitoring System based on virtual instrument LabVIEWbased. Show in Figure 3. With signal conditioning and data acquisition card to receive signals from sensors, then sent the received signal to the virtual instrument software platform, enables the following features: （ 1） show speed, acceleration, braking time, displacement, oil pressure, delay time and other relevant parameters in digital, an。