Fault Analysis and Improvement of Φ22 mm Finishing Guide for Two-strand Splitting Rolling
After changing Φ22 mm ribbed bar to two-strand splitting rolling in bar mill for Shougang Changzhi Steel & Iron Co.,Ltd.,the finishing guide wheel frequently appears the damage failure,the main performance is bearing damage,which not only results in the scrap due to the deviation of the ribbed bar,but also causes the rolling failure.Therefore,by analyzing the existing structure of finishing guide and the space occupied by the guide beam,the structure type of finishing guide is improved,and by increasing the structure of guide assembly,the space for expanding the size of guide wheel bearing is increased,and then,the force bearing capacity of the guide wheel is improved.And the lubrication mode of the bearing is changed from glycerin lubrication to oil-air lubrication,which completely solves the problem of the damaged guide wheel.In the process of improving the finished guide wheel,synchronous improvements are made to the hole spacing between the finished product and the front(K2)of the finished product,the front outlet guide,the looper,etc.,to ensure the stability of the improved process production.
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