Axial force online detection device for working roller of four-roller strip rolling mill

Abstract

The invention discloses an axial force online detection device for a working roller of a four-roller strip rolling mill, and belongs to the technical field of detection devices. The axial force onlinedetection device comprises a bearing seat, a threaded cap, a quick joint, strain gauges, a circuit board, an upper plug, a lower plug and a protective cover. An axial force signal is converted into abending moment stress signal by convex edges of the bearing seat, and the stress signal is output through the circuit board; the protective cover is arranged outside the detection device so that thedetection device cannot be interfered by the severe rolling environment; and the quick joint is arranged at the signal output end head, and the input and the withdrawal of the detection device meet the requirement of the online quick roller change. According to the axial force online detection device, the interference of severe humid environment during rolling to the detection device can be avoided, the detection signal is stable and reliable, and reliable production state monitoring can be provided for the rolling mill.

Description

technical field [0001] The invention belongs to the technical field of detection devices, and in particular relates to an online detection device for axial force of work rolls of a four-roll strip mill. Background technique [0002] At present, in the strip rolling production line, the four-high rolling mill is the most widely used model. With the development of rolling technology and the increase of rolling speed, the load-bearing requirements for thrust bearings of work rolls of four-high mills are also increasing. However, in actual production, the thrust bearings of the work rolls of four-high rolling mills are often damaged prematurely, and the resulting joint production accident losses far exceed the maintenance and replacement costs of the bearings. For this reason, various studies have been carried out in the industry, and many targeted measures have been proposed, mainly including improving bearing materials, improving bearing performance, standardizing the use of ...

AI Technical Summary

Problems solved by technology

This indirect monitoring method, first, is not direct enough. The output of the second temperature signal needs a certain period of heat conduction to stabilize, and the signal has a lag. Therefore, when an abnormal temperature rise occurs, bearing damage and joint accidents are inevitable.

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