CN110449470B - Loop carrier roller mounting seat and method for controlling deviation of strip steel at loop outlet by applying same - Google Patents

Loop carrier roller mounting seat and method for controlling deviation of strip steel at loop outlet by applying same Download PDF

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Publication number
CN110449470B
CN110449470B CN201810425465.XA CN201810425465A CN110449470B CN 110449470 B CN110449470 B CN 110449470B CN 201810425465 A CN201810425465 A CN 201810425465A CN 110449470 B CN110449470 B CN 110449470B
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China
Prior art keywords
loop
deviation
strip steel
carrier roller
shaped seat
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CN201810425465.XA
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CN110449470A (en
Inventor
周海军
王金华
李志刚
郁晓宇
苗旺
耿延好
宋言陆
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Shanghai Meishan Iron and Steel Co Ltd
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Shanghai Meishan Iron and Steel Co Ltd
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Priority to CN201810425465.XA priority Critical patent/CN110449470B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/68Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B41/00Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters

Abstract

The invention relates to a loop carrier roller mounting seat and a method for controlling deviation of strip steel at a loop outlet by using the loop carrier roller mounting seat, wherein the mounting seat comprises a base, a pressing block and a U-shaped seat, the base is provided with a mounting groove with an opening at the top, the U-shaped seat is embedded into the mounting groove, the opening of the U-shaped seat is upward, the pressing block is detachably fixed at the top of the U-shaped seat, and a mounting structure for fixing a shaft head is formed between the pressing block and the U-shaped seat; the left side wall and the right side wall of the mounting groove are provided with threaded through holes and jackscrews matched with the threaded through holes, and the U-shaped seat is provided with jackscrew holes corresponding to the threaded through holes. The method comprises the steps of firstly manufacturing and installing a loop carrier roller device capable of correcting deviation, then judging the deviation direction of the strip steel, reversely adjusting the vertical line of the loop carrier roller according to the deviation direction of the strip steel, sequentially adjusting the carrier rollers, observing the effect and achieving the purpose of correcting the deviation. The invention has low requirement on installation precision, greatly shortens the overhaul load and the overhaul time, and thereby improves the labor efficiency.

Description

Loop carrier roller mounting seat and method for controlling deviation of strip steel at loop outlet by applying same
Technical Field
The invention relates to a loop carrier roller mounting seat and a method for controlling deviation of strip steel at an outlet of a loop by applying the loop carrier roller mounting seat, in particular to a device and a method for online preventing deviation of the strip steel in the loop, and belongs to the technical field of steel rolling machinery.
Background
The deviation of the strip steel is a problem which cannot be fundamentally solved in the industry all the time, because the related factors are large, the problems of incoming materials and the deviation rectifying system exist, and in a cold rolling unit, in order to improve the performance of a through plate, deviation rectifying roller devices are adopted at the front and the rear of a loop to control the deviation of the strip steel. Because the distance between the front and the back of the loop reaches 60M and the loop is divided into a 4-layer structure, equipment maintenance is quite difficult, in the daily production process, roller systems (such as a carrier roller, a drying roller and a steering roller) can be contacted with the strip steel, the roller systems can be continuously abraded in the operation process, the surface tension of the strip steel on the roller systems is uneven, the cold rolling production is strip tension rolling, the strip steel can be abnormally deviated due to the abrupt tension, a light person can maintain the production through deceleration, and a heavy person can only stop the machine for adjustment.
At first, the technician increases the deviation rectifying capacity by adjusting the stroke of the deviation rectifying oil cylinder, but the adjusting force has the limit. Furthermore, technicians can further find out that the roller system can be adjusted according to different deviation states, for example, the position of the squeezing roller is adjusted by the aid of the acid tank loop, the elevation position of the steering roller is adjusted by the aid of the inlet loop, and the supporting roller and the tension roller are simultaneously adjusted by the aid of the outlet loop, so that the purpose of deviation correction is achieved, after corresponding roller equipment is overhauled and replaced, the original position is adjusted, the steering roller is manually changed into fixed deviation correction, and abrasion of the steering roller is accelerated. If the adjustment of the loop trolley is excessive, the risk of hitting the loop swinging door exists, and the whole process is complex and tedious.
In the continuous production process, the roller system is also continuously worn, the steering rollers on the loop car are adjusted, and then the loop trolley is adjusted, so that the aim of preventing the strip steel from continuously deviating is temporarily achieved, and the running of a unit is guaranteed. The adjustment of the steering roller and the adjustment of the loop trolley require a long time, generally more than 8 hours, for the replacement of the deviation correcting roller, and can be implemented when strip steel needs to be pumped, namely when no strip steel exists in the loop. The above problems have not been solved fundamentally for a long time.
The applicant finds that CN201120450211.7 looping base structure for preventing strip steel from deviating can realize the function of lateral movement of looping rollers along the axial direction, play a role in dynamic continuous deviation correction and prevent the strip steel from deviating after penetrating in a rolling mill. Two hydraulic cylinders are arranged on a symmetrical base, and a friction force action is formed between the roll surface and the strip steel under the action of tension formed between the frames along with the rapid lifting of the loop roll. When the strip steel deviates, the deviation rectification of the strip steel is realized through the transverse movement action of the loop roller. However, as a result, two hydraulic cylinders are required, which has the following disadvantages: once leakage occurs, fire disasters can be caused, and the hydraulic cylinder has an abnormal phenomenon. In general, the structure is also complicated.
Disclosure of Invention
The invention aims to solve the technical problems that: the loop carrier roller mounting seat can effectively improve the operation efficiency and has strong ability of rectifying the strip steel and the method for controlling the strip steel at the loop outlet by applying the loop carrier roller mounting seat.
In order to solve the technical problems, one of the technical solutions proposed by the present invention is: a loop carrier roller mounting seat is characterized in that shaft heads are arranged at two ends of a carrier roller and connected with the carrier roller through bearings; the mounting seat comprises a base, a pressing block and a U-shaped seat, wherein the base is provided with a mounting groove with an opening at the top, the U-shaped seat is embedded into the mounting groove, the opening of the U-shaped seat is upward, the pressing block is detachably fixed at the top of the U-shaped seat, and a mounting structure for fixing the shaft head is formed between the pressing block and the U-shaped seat; the left side wall and the right side wall of the mounting groove are provided with threaded through holes and jackscrews matched with the threaded through holes, and the U-shaped seat is provided with jackscrew holes corresponding to the threaded through holes.
Preferably, a guide groove extending left and right is formed in the mounting groove of the base, and the bottom of the U-shaped seat is sunk into the guide groove and can move back and forth under the action of the jackscrew.
The loop carrier roller mounting seat can be applied to the inlet loop and the outlet loop, the depth and the width of the mounting groove in the middle of the base are designed to be perfectly matched with the U-shaped seat, the adjustment is free, and the falling prevention can be realized. According to the invention, the top screw hole is additionally arranged on the side surface of the U-shaped seat, so that the stress in the direction of strip steel during correction and adjustment of the carrier roller is counteracted, and the stable operation of the carrier roller is ensured, thereby solving the series problems of small operation space, more energy consumption, long maintenance time and the like, and achieving the purpose of rapid and safe treatment.
One of the above technical solutions is further improved by: the left side and the right side of the bottom of the U-shaped seat are respectively provided with a spring cavity with a downward opening, a spring is installed in the spring cavity, and two ends of the spring are respectively abutted to the top of the spring cavity and the installation groove. When the carrier roller inclines, the tension of the strip steel on the carrier roller changes, and the self-correcting effect is achieved under the action of the two springs.
In order to solve the technical problems, the second technical scheme provided by the invention is as follows: a method for controlling deviation of strip steel at a loop outlet comprises the following steps: the carrier rollers positioned at the inlet loop and the outlet loop are arranged on the loop carrier roller mounting seat, the carrier roller positioned at the middle loop is arranged on two bearing blocks, and the outer side of one of the bearing blocks is placed on the oblique cutting block and is fastened on the rack through a bolt; observing the deviation position of the strip steel, and when the deviation position of the strip steel is positioned in the inlet loop or the outlet loop, reversely adjusting the vertical linear degree of the carrier roller through a jackscrew according to the deviation direction of the strip steel until the deviation correction is finished; when the strip steel deviation position is located in the middle loop, the height or the horizontal position of the bearing seat is raised, lowered or shifted left and right through the inclined cutting blocks according to the strip steel deviation direction, so that the bearing seat on one side is lifted or lowered, and the roll body of the carrier roller is inclined to correct the deviation.
Compared with the prior deviation rectifying method, the method greatly shortens the processing time, has better use stability and reliability, and shows that the method and the implementation device provided by the invention can well meet the requirements of cold rolling high-speed continuous production. Compared with the prior art, the invention has the obvious advantages that: 1) the installation precision requirement is not high, and the use effect is good; 2) the overhaul load and the overhaul time are greatly shortened, the original overhaul time which needs more than 4 hours is directly shortened by 5 minutes, and the labor efficiency is improved; 3) the strip steel runs stably, the adjusting method is simple and convenient, the damage rate of equipment in the loop is reduced, and the production cost is reduced; 4) the deviation of the strip steel is reduced, and the service cycle of the deviation correcting roller and the steering roller is ensured; the device can be used in any loop; the method can be applied to horizontal loop treatment and vertical loop treatment.
Drawings
The invention will be further explained with reference to the drawings.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural view of the U-shaped seat.
Fig. 3 is a schematic view illustrating the installation of the bearing seat and the bevel cutting block according to the second embodiment of the present invention.
Fig. 4 is a schematic diagram of idler roll inclination correction strip steel.
Reference numerals: 1-bolt, 2-shaft head, 3-pressing block, 4-U-shaped seat, 5-jackscrew, 6-base, 7-spring cavity, 8-mounting groove, 9-spring, 10-jackscrew hole, 11-bearing seat, 12-oblique cutting block, 13-strip steel and 14-carrier roller.
Detailed Description
Example one
This embodiment is a loop bearing roller mount pad, the both ends of bearing roller are equipped with spindle nose 2, spindle nose 2 passes through the bearing with the bearing and is connected.
As shown in fig. 1 and 2, the mounting seat comprises a base 6, a pressing block 3 and a U-shaped seat 4, wherein the base 6 is provided with a mounting groove 8 with an open top, the U-shaped seat 4 is embedded into the mounting groove 8, the opening of the U-shaped seat 4 faces upwards, the pressing block 3 is detachably fixed on the top of the U-shaped seat, and a mounting structure for fixing the shaft head 2 is formed between the pressing block and the U-shaped seat; the left side wall and the right side wall of the mounting groove are provided with threaded through holes and jackscrews 5 matched with the threaded through holes, and the U-shaped seat is provided with jackscrew holes 10 corresponding to the threaded through holes.
The base 6 is processed after being welded by a steel plate and H-shaped steel, the steel plate 1 is processed by a whole milling machine, a mounting groove (with the height of 158 mm) for placing a U-shaped seat in the middle is used as a verticality adjusting track of a loop carrier roller, the depth is 10mm, and the U-shaped seat can be prevented from toppling.
Preferably, a guide groove extending left and right is arranged in the mounting groove 8 of the base 6, and the bottom of the U-shaped seat 4 is sunk into the guide groove and can move back and forth under the action of a jackscrew.
The loop carrier roller mounting seat can be applied to the inlet loop and the outlet loop, the depth and the width of the mounting groove in the middle of the base are designed to be perfectly matched with the U-shaped seat, the adjustment is free, and the falling prevention can be realized.
According to the invention, the top screw hole is additionally arranged on the side surface of the U-shaped seat, so that the stress in the direction of strip steel during correction and adjustment of the carrier roller is counteracted, and the stable operation of the carrier roller is ensured, thereby solving the series problems of small operation space, more energy consumption, long maintenance time and the like, and achieving the purpose of rapid and safe treatment.
The embodiment can be further modified as follows: as shown in fig. 2, the left side and the right side of the bottom of the U-shaped seat 4 are respectively provided with a spring cavity 7 with a downward opening, a spring 9 is installed in the spring cavity 7, and two ends of the spring 9 respectively abut against the top of the spring cavity 7 and the installation groove 8. When the carrier roller inclines, the tension of the strip steel on the carrier roller changes, and the self-correcting effect is achieved under the action of the two springs.
Example two
The embodiment is a method for controlling deviation of strip steel at a loop outlet by applying a loop carrier roller mounting seat in the first embodiment, and the method comprises the following specific steps: the idler rollers at the inlet loop and the outlet loop are mounted on the loop idler mounting seats described in the first embodiment, and the idler roller at the middle loop is mounted on two bearing blocks, as shown in fig. 3, wherein the outer side of one bearing block 11 is placed on the bevel block 12 and fastened on the frame through bolts.
Observing the deviation position of the strip steel, and when the deviation position of the strip steel is positioned at the inlet loop or the outlet loop, reversely adjusting the vertical linear degree of the carrier roller through the jackscrew according to the deviation direction of the strip steel until the deviation is finished.
When the deviation position of the strip steel is positioned in the middle loop, the height or the horizontal position of the bearing seat is raised, lowered or shifted left and right through the inclined cutting blocks according to the deviation direction of the strip steel 13, so that the bearing seat on one side is lifted or lowered, and the roll body of the carrier roller is inclined to correct the deviation. The inclined cutting block is matched with the compression bolt to heighten or reduce or shift left and right the height or horizontal position of the wringing roller bearing seat, so that the bearing seat on one side is lifted or reduced, as shown in figure 4, the roller body of the carrier roller 14 is inclined, and the purpose of correcting the deviation of the strip steel 13 is achieved.
In order to ensure the deviation rectifying effect, the loop carrier roller mounting seats are not less than 3-5 groups, 5 groups are preferably selected, and can be matched with the original inlet loop carrier roller device for use, and the loop carrier roller device for online deviation rectifying is lifted during action, so that the stable operation of the strip steel in the loop is ensured. When the adjustable loop carrier roller mounting seat is used, the distance between the loop carrier roller mounting seat and an original carrier roller device is 10-40 mm, and 30mm is preferably selected.
The embodiment can be further modified as follows: 1) in order to enhance the self-correcting capacity, the left side and the right side of the bottom of a U-shaped seat of a loop carrier roller mounting seat at the outlet loop are respectively provided with a spring cavity with a downward opening, a compression spring is mounted in the spring cavity, and two ends of the spring are respectively abutted against the top of the spring cavity and a mounting groove.
In order to further enhance the self-correcting capability, the left side and the right side of the bottom of the U-shaped seat of the loop carrier roller mounting seat at the inlet loop are respectively provided with a spring cavity with a downward opening, a spring is mounted in the spring cavity, and two ends of the spring are respectively abutted against the top of the spring cavity and the mounting groove.
2) Also in order to facilitate the enhancement of the deviation rectifying capability, the surface roughness of the tension roller at the outlet loop is more than Ra12.5. Furthermore, the tension roller at the position of the outlet loop is a convexity roller, and the convexity value is 0.05-0.1 mm. Therefore, when the tension roller rolls the strip steel under tension, the two sides of the carrier roller are stressed to deviate along with deviation of the strip steel, the resultant force of each device pre-tensions the springs in the spring cavities, the carrier roller inclines, the tension of the strip steel on the carrier roller changes, the self-deviation-correcting effect is achieved, when the effect is not good, the resultant force pre-tensions the springs on the devices again, the carrier roller further inclines until the effect is good, and automatic adjustment is finished.
The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be made in the present invention in addition to the above embodiments. It will be understood by those skilled in the art that various changes, substitutions of equivalents, and alterations can be made without departing from the spirit and scope of the invention.

Claims (5)

1. A method for controlling deviation of strip steel at a loop outlet by using a loop carrier roller mounting seat is characterized in that two ends of a carrier roller are provided with shaft heads, and the shaft heads are connected with the carrier roller through bearings; the method is characterized in that: the mounting seat comprises a base, a pressing block and a U-shaped seat, wherein the base is provided with a mounting groove with an opening at the top, the U-shaped seat is embedded into the mounting groove, the opening of the U-shaped seat is upward, the pressing block is detachably fixed at the top of the U-shaped seat, and a mounting structure for fixing the shaft head is formed between the pressing block and the U-shaped seat; the left side wall and the right side wall of the mounting groove are provided with threaded through holes and jackscrews matched with the threaded through holes, and the U-shaped seat is provided with jackscrew holes corresponding to the threaded through holes;
the carrier rollers positioned at the inlet loop and the outlet loop are arranged on the loop carrier roller mounting seat, the carrier roller positioned at the middle loop is arranged on two bearing blocks, and the outer side of one of the bearing blocks is placed on the oblique cutting block and is fastened on the rack through a bolt;
observing the deviation position of the strip steel, and when the deviation position of the strip steel is positioned in the inlet loop or the outlet loop, reversely adjusting the vertical linear degree of the carrier roller through a jackscrew according to the deviation direction of the strip steel until the deviation correction is finished; when the strip steel deviation position is located in the middle loop, the height or the horizontal position of the bearing seat is raised, lowered or shifted left and right through the inclined cutting blocks according to the strip steel deviation direction, so that the bearing seat on one side is lifted or lowered, and the roll body of the carrier roller is inclined to correct the deviation.
2. The method for controlling the deviation of the strip steel at the outlet of the loop as claimed in claim 1, which is characterized in that: the left side and the right side of the bottom of the U-shaped seat of the loop carrier roller mounting seat positioned at the outlet loop are respectively provided with a spring cavity with a downward opening, a compression spring is mounted in the spring cavity, and two ends of the spring are respectively abutted against the top and the mounting groove of the spring cavity.
3. The method for controlling the deviation of the strip steel at the outlet of the loop as claimed in claim 1, which is characterized in that: the left side and the right side of the bottom of the U-shaped seat of the loop carrier roller mounting seat positioned at the inlet loop are respectively provided with a spring cavity with a downward opening, a spring is mounted in the spring cavity, and two ends of the spring are respectively abutted against the top of the spring cavity and the mounting groove.
4. The method for controlling the deviation of the strip steel at the outlet of the loop as claimed in claim 3, which is characterized in that: the surface roughness of the tension roller at the outlet loop is greater than Ra12.5.
5. The method for controlling the deviation of the strip steel at the outlet of the loop as claimed in claim 4, wherein the method comprises the following steps: the tension roller at the outlet loop is a convexity roller, and the convexity value is 0.05-0.1 mm.
CN201810425465.XA 2018-05-07 2018-05-07 Loop carrier roller mounting seat and method for controlling deviation of strip steel at loop outlet by applying same Active CN110449470B (en)

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CN113798323A (en) * 2020-06-13 2021-12-17 上海梅山钢铁股份有限公司 Control device and control method for implementing gapless steel pushing
CN112481485A (en) * 2020-11-23 2021-03-12 山西太钢不锈钢股份有限公司 Control system and processing method for deviation of bright furnace

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