Vertical-type roller mill grinding-roller vibration monitoring device based on acceleration transducer

Abstract

The invention discloses a vertical-type roller mill grinding-roller vibration monitoring device based on an acceleration transducer. The vertical-type roller mill grinding-roller vibration monitoringdevice comprises a roller shaft, a hub, a cylindrical roller bearing and a tapered roller bearing, wherein the cylindrical roller bearing and the tapered roller bearing connect the roller shaft and the hub. A pressing plate is mounted at the head part of the roller shaft. A ventilating channel for balancing internal pressure and external pressure is formed in the roller shaft. The acceleration transducer is mounted on the pressing plate. A signal output terminal of the acceleration transducer is electrically connected with one end of a transducer cable. The other end of the transducer cable penetrates through the ventilating channel and is electrically with a signal receiving terminal. The signal receiving terminal is located on the exterior of a vertical-type roller mill grinding roller.According to the vertical-type roller mill grinding-roller vibration monitoring device based on the acceleration transducer, by mounting the vibration acceleration transducer, the acceleration transducer cable penetrates through the grinding roller shaft and is connected with external monitoring equipment, so that real-time monitoring of vibration of a grinding roller bearing is achieved, and dataare transmitted to the monitoring equipment through a data cable to be stored and displayed; and the vertical-type roller mill grinding-roller vibration monitoring device can monitor subtle abnormalvibration of the bearing, the running state of the bearing can be shown timely and accurately, and the key effect on protecting of the bearing is achieved.

Description

technical field [0001] The invention relates to the technical field of non-metallic solid particle grinding equipment in building materials, electric power, steel and other industries, in particular to a vibration monitoring device for vertical roller grinding rollers based on acceleration sensors. Background technique [0002] As we all know, vertical mill is an energy-saving grinding equipment widely used in cement, electric power, steel and other industries. Among them, the grinding roller of the vertical mill is used as the main grinding device to cooperate with the grinding disc to undertake the work of grinding materials. [0003] In the working state, the pressurized oil cylinder of the vertical mill transmits the pressure to the grinding roller through the rocker arm device to generate grinding force to grind the material. Due to the huge grinding force, high temperature inside the mill, high dust concentration and high abrasiveness, the harsh work environment, so t...

AI Technical Summary

Problems solved by technology

In the actual production operation, the damage of the grinding roller bearing has a great impact on the whole equipment and the production line, and the maintenance cost is high and the cycle is long. The indirect reflection of the bearing condition is the oil return temperature of the grinding roller. Once the oil return temperature is abnormal, it means that the bearing problem is more serious. Therefore, it is often impossible to find the problem in time by judging the bearing operation status only from the oil return temperature.

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