Intelligent oil film bearing oil supply monitoring sensing joint

Abstract

The invention discloses an intelligent oil film bearing oil supply monitoring sensing joint. The intelligent oil film bearing oil supply monitoring sensing joint comprises a hose, a hard pipe and a remote central control room, wherein the hose and the hard pipe are mounted on a rolling mill dynamic pressure pipeline, a sleeve is further included, a left end cover and a right end cover are connected to the two ends of the sleeve correspondingly, an outlet is formed in the left end cover, the outlet is connected with the hard pipe, an aviation joint, a movable nut and a connector base are mounted on the right end cover, the movable nut is connected with the hose, a core pipe is mounted in the sleeve, a pressure sensor, a temperature sensor, a first ultrasonic probe and a second ultrasonic probe are mounted in the sleeve, the first ultrasonic probe and the second ultrasonic probe are attached to the outer side of the core pipe, the pressure sensor and the temperature sensor are connectedwith the left end cover, signal lines of the pressure sensor, the temperature sensor, the first ultrasonic probe and the second ultrasonic probe are connected with the connector base, and the connector base is in abut joint with the aviation joint. The sensing joint can work under the severe working condition, and pressure, flow and dynamic pressure temperature of an oil film bearing dynamic pressure oil inlet can be subjected to real-time monitoring.

Description

technical field [0001] The invention relates to a real-time on-line state monitoring technology of an oil film bearing, and more specifically relates to an intelligent oil film bearing oil supply monitoring sensor joint. Background technique [0002] Oil film bearings, also known as liquid friction bearings, are the key core components of modern rolling mills. The oil film bearing is a kind of radial sliding bearing with lubricating oil as the lubricating medium. The lubrication principle of the oil film bearing is: during the rolling process, due to the action of the rolling force, the journal of the roller shaft is forced to move, and the center of the oil film bearing is in contact with the shaft. The center of the neck is eccentric, so that the gap between the oil film bearing and the journal forms two areas, one is called the divergence area (the gap gradually becomes larger along the direction of journal rotation), and the other is called the convergence area (along th...

AI Technical Summary

Problems solved by technology

Under normal circumstances, the bearing pad and the rotating shaft of the oil film bearing are separated by a lubricating oil film. The oil film bearing has many advantages mentioned above, but the heat resistance of the shaft sleeve and the tapered bush is not high, and it is easy to be damaged at high temperature. Damaged Cons

When this layer of oil film is destroyed, it will cause boundary friction between the rotating shaft and the bearing bush, which will easily cause equipment failure

However, there is no real-time monitoring equipment for oil film bearings on general rolling mills, and in actual use, the damage of oil film bearings is relatively difficult to find

[0004] Therefore, in the process of online operation of cold tandem rolling units in some steel mills, accidents of oil film shaft burning on the frame often occur, and the number of times that the bushing is damaged and cannot be used is increasing. The occurrence of burning accidents leads to The factory was forced to shut down to replace the back-up rollers, which led to the shutdown of the entire unit, which seriously affected the normal production, increased the total downtime loss, and the direct economic loss of the bushing repair was also high, so it is very necessary to control the pressure of the oil film bearing, Real-time monitoring of parameters such as temperature and flow

[0005] Since there are many parameters to be monitored for oil film bearings, and the installation space inside the rolling mill is very limited, if multiple sensors are directly installed on oil film bearings or oil supply pipelines, it will inevitably cause irreversible damage to the oil supply pipeline system. job stability will have a relatively large impact

On the other hand, since multiple sensors are separated and located in a harsh field environment, it is easy to be interfered by external factors when testing and collecting various parameters, especially the interior of the rolling mill is a humid, high temperature and corrosive acid emulsion. In this environment, it is very easy to shorten the life of the sensor or damage it, which in turn leads to more inconvenient problems such as sensor replacement, which in turn causes a burden of downtime for the unit and affects production efficiency.

Images