Device for Making Horizontal Wedge Thrust of Rolling Stand

Abstract

Abstract. Problem of obtaining gapless connection between contact surfaces of lining straps of work rolls chocks and facing strips of frames (inner lining straps of backup rolls chocks) is considered. Device for making horizontal wedge thrust of rolling stand which differs in specific consumption of materials and compactness is proposed.

Experimental study of horizontal impact forces acting on equipment of thick sheet rolling stands during rolling

“…Done calculations of horizontal forces of BWR chocks impacts against housings provided execution of stress calculations of technical solutions for increase of rolling stands durability [7][8][9][10][11][12].…”

“…Stabilization of work of main drive lines of thick sheet rolling mills during increase of their productivity is important task [4][5][6]. Theoretical data of dynamic loading of rolling stands (that was proved experimentally) was used to make stress calculations of technical solutions for reduction of impact loads [7][8][9][10][11][12].…”

Adapters for metallurgical equipment

“…Researches of forces acting in rolling stands in the horizontal direction show that their values during metal-in / metal bite by WRs and metal-out can reach their maximum, which for reversing rolling stands of thick sheet rolling mill 3000 of PJSC 'ILYICH iron and steel works' can be around Fmax = 3÷4 MN and its value much smaller than vertical rolling force P [12][13][14]. Рmax = 60÷70 MN in the rolling stands of thick sheet rolling mill 3000 and forces P act inside rolling stands without plastic deformations and damages of details compared to details undergoing plastic deformations and damages due to dynamic horizontal impact forces F(refer to fig.…”

Reasonability to use device for making horizontal wedge thrust of rolling stand

“…The most interesting designs and technical solutions of use of devices for making horizontal wedge thrust of rolling stands and removal of gaps between facing strips and lining straps are based on installation of devices on used equipment [15,16]. Their common disadvantages are:  impossibility to continue rolling when even one wedge thrust unit is broken;  big specific consumption of materials and damping elements for reduction of shock energy of top work rolls (TWRs) assemblies and bottom work rolls (BWRs) assemblies against housings.…”