Monitoring Device About Mine-hoisting Rope And Its Simulation Analysis

As key equipment used in a coal mine, the shaft hoist running status is directly related to the economic benefit. To ensure the enhancement safety, skip hoisting must quantitative load. Due to the coal mine production affected by the moisture and the gangue content, the capacity and viscosity are changed greatly, that will cause the measurement bias also known as the "secondary load" phenomenon. This may lead to incidents such as winch reversal seriously affected the coal mine production safety. Therefore, the study of the monitoring device about mine-hoisting rope is necessary.In order to avoid such incidents, the subject carries out an experimental design transformation for the multi-rope friction hoist system of Huainan Mining Group Xieqiao mine. And it also designs a monitoring device for its main shaft multi-rope friction hoist system.First of all, the mechanical model of hoisting system is established in this paper. Through analysis of wire rope tension in the whole upgrade process, the maximum tension point is found, so as to provide theoretical guidance and basis for tension sensor selection.Secondly, the system's hardware and software are designed in this paper. With MSP430 MCU and SM10A strain pressure sensor as the core, the system is divided into skip load dynamic monitoring, data transmission radio emission, ground data processing. Skip dynamic monitoring part is designed for the data collection, storage and processing. Data wireless transmitter is to achieve communication with the host computer. When ground-based data is received, the host computer is to process and judgment it. When the skip is in the wellhead, the hoisting cable tension gradually reduced and the monitoring system displays real-time monitoring of the value of close to empty. Then skip rope tension can be considered uninstall completely, the system signals to enhance mechanisms for moving latch lifting hoist reversal, empty skip is decentralized; otherwise, the monitoring system alarm signal to enhance mechanisms for moving latch start hoist unable to operate, and need to staff a timely manner.Finally, the monitoring device functional achievement is to be tested through laboratory simulations. Experimental results show that the results match with the theoretical results, and their means of communication, hardware circuits and host computer software can basically satisfy the multi-rope winding system, skip loading and unloading of data collection, transmission, receive and display and analysis.Figure [45] Table [11] Reference [53]...