Device capable of improving online heating adaptability of roller

Abstract

A device that can improve the adaptability of rolling on-line heating, which mainly includes: an axial through hole is arranged on an ordinary roll, and a heating rod wrapped with an asbestos layer is arranged in each axial through hole, and two heating rods of each heating rod The ends are respectively placed in the conductive block, and all the conductive blocks arranged at one end of the roll are in contact with a power-connecting coil, and a binding post and a fixed bracket are arranged on the power-connecting coil. In addition, a contact block with a certain height is arranged on the two end faces of the two rolls. The contact surface of the contact block and the thermocouple is an arc surface with a high middle and low sides, and one end of the thermocouple is set on the end face of the roll. Nearby, the other end of the thermocouple is connected to one end of the elastic piece, and the lead wire on the thermocouple is connected to the control system. The invention not only has a simple structure, but also can continuously heat the rolls on-line during the rolling process, has high production efficiency, low processing cost and convenient operation, and the temperature of the rolls is always in a reasonable temperature range, ensuring better, stable and uniform product quality.

Description

technical field [0001] The invention relates to a mechanical processing device, in particular to a roll. Background technique [0002] When some thin plates or other thinner materials are hot-rolled, it is usually necessary to heat the roll to ensure that the roll has a certain temperature, which can improve the surface quality of the rolled workpiece. Some existing technical means for heating the rolls are artificial heating and induction heating, among which most of the artificial heating methods are to heat the surface of the rolls by burning fuel such as oil or gas. This heating method can only be used in equipment It is carried out in a non-working state. After heating for a period of time, measure the temperature of the roll surface to determine whether it meets the use requirements. After meeting the use requirements, process it. After working for a period of time, the temperature of the roll surface decreases, and then reheat. This method not only It is time-consumi...

AI Technical Summary

Problems solved by technology

Some existing technical means for heating the rolls are artificial heating and induction heating, among which most of the artificial heating methods are to heat the surface of the rolls by burning fuel such as oil or gas. This heating method can only be used in equipment It is carried out in a non-working state. After heating for a period of time, measure the temperature of the roll surface to determine whether it meets the use requirements. After meeting the use requirements, process it. After working for a period of time, the temperature of the roll surface decreases, and then reheat. This method not only It is time-consuming and labor-intensive, and the processing efficiency is low. At the same time, due to the accuracy of measurement and other reasons, the process conditions of each processing are different, resulting in differences in the performance of each part of the produced plate; most of the induction heating methods are Through the transformation of the center part of the roll, a heating rod is installed in the center part, and the heat is transferred to the surface of the roll through the heat dissipation method of heat transfer, or an oil channel is processed inside the roll, and the flow of heating oil inside the roll will The heat is transferred to the surface of the roll, and the surface of the roll is heated by the heating rod. Since the heating rod is in the core of the roll, there is a certain distance from the outer surface, so the temperature of the heating rod is required to be high, which not only consumes a lot of power but also Corresponding measures should be taken to ensure the temperature resistance of other parts, resulting in a complex structure

If you use heating oil for heating, you also need to consider the problem of oil sealing and oil leakage may cause pollution or even danger

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