Research On Mechanical Engineering Performance Parameters State Detection Technology

Along with the rapid development of science and technology, the structures of modern engineering machinery are more and more complex, their functions are more and more perfect, and their degree of automation is higher. Due to bad working environment and so on many unavoidable factors, Mechanical equipment and sometimes appear all sorts of fault, make the reservation function is lost, and even cause severe losses. So how to ensure the normal operation of mechanical equipment can be the top priority. This makes the importance of engineering machinery state parameter detection. At the same time, the advance of computer software technology, virtual instrument is also gradually mature. Using the virtual instrument technology can share hardware and software resources, establish comprehensive detection system conveniently, and can use the computer to realize the signal analysis, data processing, report generation waveform storage and playback function.In this paper, the detection system of engineering machinery which can be used on engine, hydraulic system, gear and gear box and other general machinery for state detection is developed by NI CompactDAQ,NI SCXI(signal modulation equipment) and various sensors on the basis of LabVIEW.Engine state detection system based on the engine starting performance, power, fuel supply system and surface vibration signal detection analysis can evaluate the engine working condition; The hydraulic system state detection based on the analysis of the pressure, temperature, vibration signal can determine the working state of hydraulic equipment; Common state parameter detection, including temperature and rotational speed, temperature detection can not only single channel test, still can multi-channel test; Speed detection to common rotating mechanical measurement speed. The system includes data storage, waveform storage, waveform playback and generate reports function.