Vertical shaft hoist main shaft vibration detection method based on finite element analysis method

Abstract

The invention discloses a vertical shaft main shaft vibration detection method based on a finite element analysis method. According to the special structure of a vertical shaft hoist, an integrated vibration transmitter is adopted to detect data of the vibration frequency amplitude of a hoist main shaft, the transmitter is adopted to convert a vibration signal to a 4-20MA analog signal to be transmitted to a field S7-300PLC, then after processing through the PLC, an RS485 bus is adopted to convert the processed signal to a TCP / IP Ethernet signal which can be recognized on a PC through a CP343-1LEAN bus converter, the signal is further transmitted to an upper computer located inside a monitoring room through an underground ring network, received by Kingview software in the upper computer and then transmitted to a finite element algorithm model with built-in MATLAB software, relatively accurate early warning of a future development tread is obtained through calculation, data are displayed on the upper computer in real time, and safe operation of the hoist is monitored in real time through a PC of the monitoring room, so that safety and stability of coalmine production are ensured. The vertical shaft main shaft vibration detection method based on the finite element analysis method starts from safety of the vertical shaft hoist, in combination with the actual situation of daily running, and makes full use of the advantages of the finite element algorithm to predict the running state of the hoist, so as to realize timely warning and repair when an accident does not happen, and thus ensure the safety of underground workers.

Description

technical field [0001] The invention relates to the field of safety lifting detection methods for shaft hoists in mines, in particular to a vibration detection method for shaft hoists of shaft hoists based on finite element analysis. Background technique [0002] The hoist is an important equipment in coal mines, and whether it can operate safely and stably is directly related to the safe production of coal mines. However, most coal mines in my country use tower multi-rope friction hoists. The main shaft device of the hoisting motor of the main shaft and the sky wheel are the main load-bearing components. Stable and safe. [0003] According to research, more than 70% of the faults of rotating machinery are caused by vibration, and the state of vibration is an important factor to measure the operation status of rotating machinery. Excessive vibration is extremely harmful, and it can directly cause mechanical accidents. In the past, only when there was a problem with the ope...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a vibration detection method based on the finite element analysis method of the main shaft of the shaft hoist and to perform remote real-time monitoring, so as to solve the problem that the existing technology is inefficient and cannot realize the real-time monitoring of the safe operation status of the shaft hoist

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