Crane fault diagnosis technology development

Various types of  hoist gantry crane  state detection and fault diagnosis of electronic technology applications and the development of electronic technology Wei maturing and advanced . By the relay , contactor auxiliary chain connector , limit switch indicator consisting of a simple fault detection developed to specifically fault diagnosis system . Especially in the modern port of bulk and container loading dock harbor cranes, automated handling systems with improved performance , lifting the growing complexity of loading and unloading operations in order to improve the efficiency and reliability of lifting machinery , maintenance and effective utilization , try lifting downtime rate is reduced to minimum. The past 10 years , at home and abroad continue to develop and apply the port handling system RAS ( reliability , effective utilization , maintenance ) overall performance of the technology . In the automation system using "distributed " means of control for each device to take measures to improve the overall performance of RAS . The  overhead gantry crane  motor control system , the programmable logic controller (PC), the data transmission device and the velocity modulation of the three components are used rigorous diagnostic measures and monitoring software reliability . In the system design , set back-up facilities and specialized diagnostic equipment monitoring .

Crane fault diagnostic testing device uses a microprocessor for data acquisition and processing , to achieve the lifting equipment and wiring fault detection , diagnosis and management of job records . Loading bridge microcomputers and computer in the control room via fiber optic cable linking the data can be easily transmitted the communication of information and instructions . MCMS systems often detect electrical transmission line is normal , at any time of the electrical equipment of the analog signal and digital signal switching record , and the detected value and the normal value is compared to determine whether there is failure , if failure occurs in the driver's cab CRT on the display , while the display the results printed out. After a fault occurs , the rapid tracking and detection of point of failure where they are. From the CRT display can be seen at a glance time curve shows the point of failure. Also can put the life of the various components , replacement time , repair time storage, display, print out, providing maintenance and repair information overhead bridge crane  parts .