CN201644494U - Small vertical roll hole pattern capable of realizing position control function - Google Patents

Abstract

A small vertical roll hole pattern capable of realizing a position control function belongs to the technical field of steel rolling equipment, and aims to solve the technical problems of realizing absolute position control of a small vertical roll, improving the width precision of a rolled piece and ensuring running stability of the rolled piece. The technical scheme of the small vertical roll hole pattern includes that the inclination of the lateral wall of the hole pattern ranges from 20% to 30%, a groove bottom of the hole pattern is inclined, and the inclination of the groove bottom ranges from 2% to 8%. The inclined groove bottom and the large lateral wall hole pattern can be adopted to restrain movement of the rolled piece in a perpendicular direction, completely eradiate inclination of the rolled piece when the vertical roll laterally presses the rolled piece, ensure smooth engagement of the rolled piece, decrease steel stacking and jamming accidents and burrs at the edge of the rolled piece, enables the small vertical roll on a hot rolling production line to realize absolute position control, and greatly improve width control precision of the hole pattern. Simultaneously, a hole pattern system is not subject to the thickness of an intermediate blank, can further expand the specification of the intermediate blank and lay foundation for category development of a next step.

Description

A kind of little edger roll pass that can realize the Position Control function

Technical field

The utility model relates to a kind of steel rolling edger roll pass, belongs to the steel rolling equipment technical field.

Background technology

At mill, the main purpose that edger roll is set is exactly a control panel bandwidth size, improves the stability of strip poker width accuracy and strip operation, so the selection of edger roll roll shape and edger roll PASS DESIGN should be as principles.At present domestic and international each big steel mill, what the edger roll pass extensively adopted is traditional straight slot bottom outlet type, the edger roll pass is when design, for guaranteeing the shared property of edger roll pass schedule, pass bottom land width is to be that benchmark carries out value design with the thickest intermediate blank, be the stability that further guarantees the rolled piece operation simultaneously, the general value of sidewall of pass gradient is less, is generally 6%-10%.In actual production process, this pass schedule is little because of its angle of sides, and the intermediate blank head of producing because of roughing is a unrestricted spread on the one hand, out-of-shape causes the rolled piece difficulty of nipping, and heap steel-fastening accident easily takes place, also easily cause strip edge portion to produce burr simultaneously, influence strip edge portion quality; On the other hand, because of pass bottom land broad, when rolling thin intermediate blank, rolled piece is in free state in edger roll pass vertical direction, when the edger roll side pressure, rolled piece very easily takes place crooked, causes that two roll bearings are stressed not to be waited, the crooked side roll of rolled piece will bear bigger axial force, bearing is deformed, cause relatively moving between bearing holder (housing, cover) and its counterpart, the burn bearing accident easily takes place, make Bearing Consumption high, simultaneously crooked because of rolled piece, the spring of making both sides machinery itself is unequal, and what produce that medium and small edger roll adopts is absolute position control, thereby cause two edgings not wait, the strip width precision can't guarantee, makes the width control of the little edger roll of finish rolling inoperative, and absolute position control function can not realize well, the burn bearing accident is many simultaneously, and output and strip qualification rate descend when causing machine.For this reason, the new edger roll pass of design one cover is very necessary.

Summary of the invention

Technical problem to be solved in the utility model provides a cover and can realize the absolute position control of finish rolling edger roll, the strip width control accuracy is further enhanced, and can prolong edger roll service time, reduce the edger roll Bearing Consumption, the little edger roll pass of output when improving machine.

The technical scheme that solves the problems of the technologies described above is:

A kind of little edger roll pass that can realize the Position Control function, it comprises that bottom land, sidewall, its improvements are, its sidewall of pass gradient is 20%-30%.

At the bottom of the above-mentioned little edger roll pass that can realize the Position Control function, its bottom land were tipper, gradient was 2%-8%.

The utility model has adopted the inclined bottom land and has increased sidewall of pass gradient, the inclined bottom land has retrained the motion of rolled piece vertical direction, thereby rolled piece tilt phenomenon when having stopped the edger roll side pressure, the increase of angle of sides simultaneously, more utilize rolled piece to nip, the rolled piece limit portion burr phenomena that has reduced heap steel-fastening accident and stopped to cause because of edger roll makes the little edger roll of hot rolling line realize absolute position control, has improved the product width control accuracy greatly.This pass is not subjected to the influence of intermediate blank thickness simultaneously, can further expand the intermediate blank specification, for the variety development that goes on foot is down laid a good foundation.

Description of drawings

Fig. 1 is an edger roll pass schematic diagram of the present utility model;

Fig. 2 is an edger roll pass schematic diagram of the prior art.

Mark is as follows among the figure: bottom land 1, sidewall 2

The specific embodiment

Show among Fig. 2 that widely used former pass is a straight slot bottom outlet type at present, and angle of sides is less, in the operation of rolling, in pass vertical direction place free state, promptly non-steady state easily takes place crooked in the production process for thin rolled piece.

Fig. 1 shows, the utility model improves original pass, sidewall 2 gradients have been increased to 20%-30% by 6%-10%, and according to the motion conditions of strip in pass, accurately designed the gradient of inclined bottom land 1, make rolled piece can be in level, reduce the wearing and tearing of bottom land 1 again, gradient is 2%-8% usually.

Little edger roll pass of the present utility model has improved the shared property of edger roll pass, be suitable for the different size intermediate blank, and the stability of assurance wide effect of control and rolled piece operation, this inclined bottom land pass, no matter rolled piece thin and thick because of it is a beveled aperture, has the power that rolled piece moves up and down that hinders in the pass vertical direction, thereby guaranteed the level of rolled piece, made the absolute position control function of little edger roll obtain realization.

Claims (2)

1. the little edger roll pass that can realize the Position Control function, it comprises bottom land [1], sidewall [2], it is characterized in that: its sidewall of pass [2] gradient is 20%-30%.

2. the little edger roll pass that can realize the Position Control function according to claim 1 is characterized in that: its bottom land [1] is at the bottom of the tipper, and gradient is 2%-8%.

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