Process for avoiding burning blocking of roll bearing of cold continuous rolling steel rolling machine

Abstract

The invention provides a process used for avoiding burning blocking of a roll bearing of a cold continuous rolling steel rolling machine and applied to the technical field of steel rolling machines. The process used for avoiding the burning blocking of the bearing comprises the steps of installing a roll force pressure sensor and a roll bending force pressure sensor on the steel rolling machine, enabling the pressure sensors to be connected with monitoring components respectively, and enabling measured values of the pressure sensors to be transmitted to the monitoring components respectively; measuring and calculating forward slip values of strip steel, and transmitting the measured values to the monitoring components; monitoring the measured values of the monitoring components, and shutting down the machine to check the roll bearing of the cold continuous rolling steel rolling machine if the measured values fluctuate abnormally; and not performing shutdown checking of the steel rolling machine if the measured values do not fluctuate abnormally. By means of the process, burning blocking and roll breakage accidents caused by poor lubrication of the bearing block bearing can be avoided, economic loss is avoided, people and device safety reliability can be effectively guaranteed simultaneously, and extra serious accidents such as fires are avoided.

Description

Technical field [0001] The invention belongs to the technical field of rolling mills, and more specifically, relates to a process method capable of preventing the roller bearings of a cold tandem rolling mill from being burnt and stuck. Background technique [0002] The tandem cold rolling mill is a full-continuous four-stand six-high rolling mill. The four-row tapered roller bearings used in the work rolls and intermediate rolls of the rolling mill work under high-speed, heavy-duty, and emulsion splashing conditions, regardless of whether abnormalities occur during the service cycle. , The bearing housing disassembly inspection must be carried out every three months, but in actual production, sometimes before the regular inspection, the bearing housing is too late to flow due to the large amount of emulsion splash in the seal ring area. The forced inhalation of the emulsion causes the grease to be emulsified. In a slight state, the end face of the roll neck can be used without b...

AI Technical Summary

Problems solved by technology

[0002] The tandem cold rolling mill is a fully continuous four-stand six-high rolling mill. The working environment of the four-row tapered roller bearings used for the work rolls and intermediate rolls of the rolling mill is high speed, heavy load, and emulsion splashing. Regardless of whether there is any abnormality during the service cycle , the dismantling inspection of the bearing seat should be carried out every three months. However, in actual production, sometimes before the regular inspection, the bearing seat will be dismantled due to the pumping effect when the emulsion in the sealing ring area is too large to flow. The grease is emulsified due to the forced inhalation of the emulsion. In a slight state, the burn on the end face of the roll neck can continue to be used without being found. As the deterioration intensifies, it will cause serious accidents such as burning of the bearing seat, and even roll breakage.

At present, the main methods for preventing early warning of bearing early damage are: 1. Install vibration sensor detection equipment for monitoring, but due to the frequent occurrence of various high-frequency and low-frequency vibrations in the rolling mill area under production conditions, the dynamic monitoring frequency is disturbed and the signal is distorted; 2. Regularly use a thermometer to monitor the temperature rise of the bearing seat, but there are often monitoring errors caused by missed detection and the environment

Images