CN202199590U

CN202199590U - High-precision steel rolling mill

Info

Publication number: CN202199590U
Application number: CN2011202532067U
Authority: CN
Inventors: 雷亚夫; 王智胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-18
Filing date: 2011-07-18
Publication date: 2012-04-25
Anticipated expiration: 2021-07-18

Abstract

The utility model discloses a high-precision steel rolling mill, which comprises a steel rolling mill main body, wherein an upper steel rolling roll group of the steel rolling mill consists of a first support roll, a second support roll and a first working roll; the first working roll is positioned between the first support roll and the second support roll, and is positioned below the first support roll and second support roll; the first support roll and the second support roll are used for preventing the first working roll from being bent; a lower steel rolling roll group of the steel rolling mill is formed by connecting a second working roll, a third support roll and a fourth support roll; the second working roll is positioned between the third support roll and the fourth support roll, and is positioned above the third support roll and the fourth support roll; the third support roll and the fourth support roll are used for preventing the second working roll from being bent; the first working roll corresponds to the second working roll up and down; and a first magnet and a second magnet are arranged on a second frame, correspond to the first working roll and the second working roll respectively one by one, and are positioned on the steel charging sides of the first working roll and the second working roll respectively.

Description

The high accuracy rolling mill

Technical field

The utility model relates to a kind of high accuracy rolling mill.

Background technology

Existing mills'structure is too complicated, and manufacturing cost is higher, and its main cause is: existing rolling mill is for preventing in the rolling process that working roll is crooked under the migration of band steel, and all adopting the backing roll more than five is that work is spacing; The quantity of backing roll increases, and has increased the volume and the cost of rolling mill, and because therefore complex structure, is difficult to improve the precision of rolling mill, can't realize rolling ultrathin strip.

The utility model content

The purpose of the utility model provides a kind of high accuracy rolling mill, and it can prevent working roller bending jointly through backing roll and anti-bending mechanism, can reduce the quantity of backing roll, reduces production costs, and simplifies the structure of rolling mill, improves the precision of rolling mill.

The purpose of the utility model realizes through following technical scheme: the high accuracy rolling mill; Comprise the rolling mill main body; The last steel rolling roller group of rolling mill is made up of first backing roll, second backing roll and first working roll; First working roll and is positioned at first backing roll and second backing roll below between first backing roll and second backing roll, first backing roll and second backing roll prevent first working roller bending; The following steel rolling roller group of rolling mill is connected and composed by second working roll, the 3rd backing roll and the 4th backing roll; Second working roll is between the 3rd backing roll and the 4th backing roll; And be positioned at the 3rd backing roll and the 4th backing roll top, the 3rd backing roll and the 4th backing roll prevent second working roller bending; First working roll and second working roll are corresponding up and down; First magnet and second magnet are installed on second frame, and first magnet and second magnet are corresponding one by one with first working roll and second working roll respectively, and first magnet and second magnet lays respectively at first working roll and second working roll advances the steel side.

For further realizing the purpose of the utility model; Can also adopt following technical scheme to realize: first locating part and second locating part are installed on second frame; First locating part is positioned at the tapping side of first working roll, and second locating part is positioned at the tapping side of second working roll.Described first locating part and second locating part are magnet, and first locating part is relative with the first magnet magnetic pole, and second locating part is relative with the second magnet magnetic pole.Described first locating part and second locating part are anti-rollers, and the diameter of anti-roller is less than the diameter of first working roll and second working roll.

The good effect of the utility model is: it is equipped with magnet in the steel side of advancing of working roll; Magnet utilizes magnetic force to offset the pulling force of band steel to working roll, thereby, can reduce the load of backing roll; Reduce the quantity of backing roll; Simplify the structure of rolling mill, improve the precision of milling train, reduce the production cost of milling train.It also is used to prevent working roller bending in the anti-roller that the tapping side of every working roll is installed less than work roll diameter; Also can another piece location be installed in the tapping side of every working roll and use magnet, the magnet of same working roll both sides is that homopolarity is relative, thereby can further prevent the working roller bending distortion, effectively improves the quality of steel rolling.The utility model also has compactness simple for structure, the advantage of being convenient to keep in repair.

Description of drawings

Fig. 1 is the structural representation of the utility model; Fig. 2 is the sectional structure sketch map along Figure 1A-A line.

Reference numeral: 1 first frame, 2 motors, 3 shaft couplings, 4 gearboxes 5 first connect axle 6 second and connect axle 7 second frames 8 screwdown gears 9 first backing rolls 10 second backing rolls 11 the 3rd backing roll 12 the 4th backing roll 13 first working rolls 14 second working rolls 15 first magnet 16 first locating parts 17 second magnet 18 second locating parts.

The specific embodiment

The described high accuracy rolling mill of the utility model; Comprise the rolling mill main body, described rolling mill main body comprises that second frame 7, the screwdown gear 8, first of existing rolling mill connect axle 5, second and connect axle 6, gearbox 4, shaft coupling 3, motor 2 and two groups of parts such as steel rolling roller group up and down.The difference of said high accuracy rolling mill and existing rolling mill is: as shown in Figure 2; The last steel rolling roller group of rolling mill is made up of first backing roll 9, second backing roll 10 and first working roll 13; First working roll 13 is between first backing roll 9 and second backing roll 10; And be positioned at first backing roll 9 and second backing roll, 10 belows, first backing roll 9 and second backing roll 10 prevent 13 bendings of first working roll; The following steel rolling roller group of rolling mill is connected and composed by second working roll 14, the 3rd backing roll 11 and the 4th backing roll 12; Second working roll 14 is between the 3rd backing roll 11 and the 4th backing roll 12; And be positioned at the 3rd backing roll 11 and the 4th backing roll 12 tops, the 3rd backing roll 11 and the 4th backing roll 12 prevent 14 bendings of second working roll.Screwdown gear 8 produces through first backing roll 9 and second backing roll 10 makes a concerted effort to make the only pressure rolling vertically downward of first working roll 13; The only pressure rolling vertically upward of second working roll 14 of making a concerted effort to make of the 3rd backing roll 11 and the 4th backing roll 12; Backing roll prevents that first working roll 13 and second working roll 14 from bending, and all can not produce amount of deflection up and down when producing.First working roll 13 and second working roll 14 are up and down to being applied to steel rolling operation.As shown in Figure 2; First magnet 15 and second magnet 17 are installed on second frame 7; First magnet 15 and second magnet 17 are corresponding one by one with first working roll 13 and second working roll 14 respectively, and first magnet 15 and second magnet 17 lays respectively at first working roll 13 and second working roll 14 advances the steel side.First magnet 15 and second magnet 17 are offset the pulling force that the band steel is advanced first working roll 13 and second working roll 14 are caused through magnetic force; First backing roll 9, second backing roll 10, the 3rd backing roll 11 and the 4th backing roll 12 be can assist,

first working roll

13 and 14 flexural deformations of second working roll prevented.First magnet 15 and second magnet 17 constitute the anti-bending mechanism of working roll.The rolling process of said high accuracy rolling mill and operation principle and existing rolling mill are identical, have just significantly simplified the mechanism that prevents working roller bending, have improved the precision of rolling mill, make milling train be fit to rolling ultrathin strip.

For further preventing first working

roll

13 and 14 flexural deformations of second working roll; As shown in Figure 2; Installation first locating part 16 and second locating part, 18, the first locating parts 16 are positioned at the tapping side of first working roll 13 on second frame 7, and second locating part 18 is positioned at the tapping side of second working roll 14.First locating part 16 and second locating part 18 are crooked when stoping first working roll 13 and second working roll 14 to roll the band steel respectively.Described first locating part 16 and second locating part 18 can all be magnet, and first locating part 16 is relative with first magnet, 15 magnetic poles, and second locating part 18 is relative with second magnet, 17 magnetic poles.Described first locating part 16 and second locating part 18 also can be anti-rollers.The diameter of anti-roller should be less than the diameter of first working roll 13 and second working roll 14, contacts between roller and the band steel preventing, stops to be with steel to cause bending to influence to preventing roller.Anti-roller stops first working

roll

13 and 14 bendings of second working roll.The spacing that 13 of common first locating part 16 and first working rolls and second locating part 18 and second working roll are 14 is 10-20mm; Both can prevent first working roll 13 and second working roll, 14 overbendings, and can not influence the operate as normal of first working roll 13 and second working roll 14 again.

The described technical scheme of the utility model is not restricted in the scope of the described embodiment of the utility model.The utility model not technology contents of detailed description is known technology.

Claims

1. high accuracy rolling mill; Comprise the rolling mill main body; It is characterized in that: the last steel rolling roller group of rolling mill is made up of first backing roll (9), second backing roll (10) and first working roll (13); First working roll (13) is positioned between first backing roll (9) and second backing roll (10), and is positioned at first backing roll (9) and second backing roll (10) below, and first backing roll (9) and second backing roll (10) prevent first working roll (13) bending; The following steel rolling roller group of rolling mill is connected and composed by second working roll (14), the 3rd backing roll (11) and the 4th backing roll (12); Second working roll (14) is positioned between the 3rd backing roll (11) and the 4th backing roll (12); And be positioned at the 3rd backing roll (11) and the 4th backing roll (12) top, the 3rd backing roll (11) and the 4th backing roll (12) prevent second working roll (14) bending; First working roll (13) and second working roll (14) are corresponding up and down; Second frame (7) goes up installs first magnet (15) and second magnet (17); First magnet (15) and second magnet (17) are corresponding one by one with first working roll (13) and second working roll (14) respectively, and first magnet (15) and second magnet (17) lays respectively at first working roll (13) and second working roll (14) advances the steel side.

2. high accuracy rolling mill according to claim 1; It is characterized in that: second frame (7) goes up installs first locating part (16) and second locating part (18); First locating part (16) is positioned at the tapping side of first working roll (13), and second locating part (18) is positioned at the tapping side of second working roll (14).

3. high accuracy rolling mill according to claim 2; It is characterized in that: described first locating part (16) and second locating part (18) are magnet; First locating part (16) is relative with first magnet (15) magnetic pole, and second locating part (18) is relative with second magnet (17) magnetic pole.

4. high accuracy rolling mill according to claim 2 is characterized in that: described first locating part (16) and second locating part (18) are anti-rollers, and the diameter of anti-roller is less than the diameter of first working roll (13) and second working roll (14).