CN102172674B

CN102172674B - Small-roller-diameter multi-roller straightening machine

Info

Publication number: CN102172674B
Application number: CN 201010619732
Authority: CN
Inventors: 宋建芝; 祝连兵; 李危平
Original assignee: Zhongye Continuous Casting Technology Engineering Co Ltd
Current assignee: Zhongye Continuous Casting Technology Engineering Co Ltd
Priority date: 2010-12-31
Filing date: 2010-12-31
Publication date: 2013-01-16
Anticipated expiration: 2030-12-31
Also published as: CN102172674A

Abstract

The invention discloses a small-roller-diameter (phi is less than or equal to 70 millimeters) multi-roller straightening machine, which is applied to a discontinuous or continuous unit of a sheet or straightening band steel on a push-pull acid washing unit and iron scale damaging equipment. The straightening machine comprises a multi-output-shaft gear reduction distribution box, a bending section bending roller set, a flattening section straightening roller set, a hydraulic cylinder and the like, wherein the bending roller set and the straightening roller set consist of a support roller, a middle roller and a straightening roller respectively; the support rollers and the straightening rollers are driven rollers; the middle rollers are driving rollers; and the straightening rollers have small-roller-diameter structures with the roller body diameters of not greater than 70 millimeters. Due to the adoption of the straightening machine, the problem that a small-diameter straightening roller cannot bear torque transmission easily is solved; and the conventional middle roller is improved from a driven roller driven by band steel to a driving roller connected with a shaft coupling, so that the difficulty in directly driving the straightening roller is avoided and the effects of better realizing scale breaking and plate straightening capacity by using a small-roller-diameter straightening roller are achieved.

Description

Small-roller-diameter multi-roller straightening machine

Technical field

The present invention relates to a kind of small-roller-diameter multi-roller straightening machine, be specially on the discontinuous or tandem mill or push pull pickling line that is applied in thin plate, be used for aligning band steel, broken iron scale equipment, belong to the iron and steel metallurgical industry aligning and break the phosphorus technical field, the pony roll described in this specification refers to that directly its roll body diameter dimension is not more than the 70mm roller.

Background technology

In the existing known technology, push pull pickling line is the unit of the monovolume pickling of discontinuous work, and its entrance is provided with straightener, is used for aligning band steel, because monovolume duty but not tandem mill, unit tension force is less, so straightener is initiatively to align, smoothing roll should be aligned again driving torque of band steel, its roller footpath is large (more than the Ф 130mm) generally, be difficult to performance aligning band steel functional, therefore be mainly used in aligning the end to end part with steel, also do not reach brokenly effect of phosphorous.Correct theoretical according to sheet bending, improve the drafts that the precision of correcting sheet material depends primarily on the roller number of arbor press and makes the working roll of sheet bending distortion, and working roll roller footpath and roll spacing, and in the continuous acid-washing aligning, because of unit tension force larger, smoothing roll less (Ф 70mm following) can't bear or install the shaft coupling of transmitting torque.Chinese utility model patent " multi-roller steel plate-flattening machine " (application number: 200510048186.9 applyings date: 2005-12-12) disclosed characteristics be working roll and support roller device have into, exit portion and mid portion, every part has independently transmission device separately, the independent transmission of the working roll of various piece, the roller of importing and exporting the part employing directly is Ф 200mm, the intermediate calender rolls diameter is Ф 320mm, between the working roll of turnover part and mid portion, can adjust separately in addition and depress and the intermediate calender rolls of opening, its diameter is Ф 260mm, and this utility model and be not suitable for thin plate continuous acid-washing and the aligning; (application number: 200820010136.0 applyings date: 2008-01-09) disclosed is nine roller straighteners in a kind of differential roller footpath to Chinese utility model patent " nine roller straighteners in differential roller footpath ", comprise lower smoothing roll group, driving mechanism, the upper straightening roll group, pressing adjustment device etc., lower smoothing roll group is the smoothing roll that upper roll surface is in five differential roller footpaths on the same level, the upper straightening roll group has the smoothing roll in four differential roller footpaths, per two upper straightening rolls are a small group, 4 rollers of its entrance side directly are Φ 130mm, 5 rollers of outlet side directly are Φ 190mm, roller footpath, two places is all greater than Φ 70mm, be difficult to performance aligning band steel functional, broken effect of phosphorous is poor.

In push pull pickling line, a kind of straightener has aligning and the double effects of broken phosphorus, and its working roll adopts pony roll footpath (aligning of Ф≤70mm), the novel product that reaches economic, practical purpose necessitates simultaneously.

Summary of the invention

The problem that the object of the invention proposes for background technology, a kind of pony roll footpath (multi-roll straightening machine of Ф≤70mm) is disclosed, be applied in the discontinuous or tandem mill of thin plate or the aligning band steel on the push pull pickling line, broken iron scale equipment, be applicable under the small tension receiving coil condition with aligning and the broken phosphorus of steel, reach and improve the good double requirements of fruit of plate shape and pickling.

Technical scheme of the present invention is: small-roller-diameter multi-roller straightening machine, comprise main motor, have more shaft gear deceleration distributor box, Hooks coupling universal coupling, bending section bending roll group, leveling section smoothing roll group, the bending section lifting hydraulic cylinder, leveling section lifting hydraulic cylinder, memorial archway, described bending section bending roll group and leveling section smoothing roll group are by backing roll, intermediate calender rolls and smoothing roll form, it is characterized in that: described backing roll and smoothing roll are driven roll, intermediate calender rolls is drive roll, the smoothing roll in the bending section bending roll group, the smoothing roll of leveling section smoothing roll group all is the pony roll gauge structure that the roll body diameter is not more than 70mm.

The invention has the beneficial effects as follows: (smoothing roll (working roll) of Ф≤70mm) is difficult to bear the moment of torsion problem of transmission to have solved minor diameter, traditional intermediate calender rolls is improved to the drive roll that is connected with shaft coupling by the driven roll that drags with steel, avoided the difficult point of direct-drive smoothing roll, reached pony roll footpath smoothing roll and can better realize brokenly phosphorus and straightening plate shape ability effect.

Description of drawings

Accompanying drawing 1 is the small-roller-diameter multi-roller straightening machine schematic diagram;

Accompanying drawing 2 is front view of the invention process;

Accompanying drawing 3 is A part enlarged drawing among Fig. 2;

Accompanying drawing 4 is B part enlarged drawing among Fig. 2;

Accompanying drawing 5 top views of the invention process;

Accompanying drawing 6 is the bending section side view of the embodiment of the invention;

Accompanying drawing 7 is the leveling section side view of the embodiment of the invention.

The specific embodiment

Below the contrast accompanying drawing further specifies the description of symbols in the accompanying drawing to the embodiment of the invention:

Among Fig. 1: A11-backing roll, A12-intermediate calender rolls, A13-smoothing roll, A21-backing roll, A22-intermediate calender rolls, A23-smoothing roll, B1-backing roll, B2-intermediate calender rolls, B3-smoothing roll.

Among Fig. 2, Fig. 3, Fig. 4: 4-upper bending roll group I, 5-upper bending roll group II, lift beam on 6-bending section, 7-bending section lift, 8-lower bending roll group I, 9-lower bending roll group II, lift beam under 10-bending section, 11-bending section lifting hydraulic cylinder, 12-logical printed line roller, 13-leveling section lift, lift beam on 14-leveling section, 15-leveling section top roll group, 16-memorial archway, 17-steel plate, 18-leveling section lower roll group, lift beam under 19-leveling section, 20-leveling section lifting hydraulic cylinder.

Among Fig. 5, Fig. 6, Fig. 7: 21-bending roll group driving motor, 22-bending section gear distribution box, 23-bending section shaft coupling, 24-leveling roller group driving motor, 25-leveling section gear distribution box, 26-leveling section shaft coupling.

Referring to Fig. 1, be the small-roller-diameter multi-roller straightening machine schematic diagram, totally eight up and down of bending section intermediate calender rolls A12 and intermediate calender rolls A22() connect respectively with bending section gear distribution box 22 by bending section shaft coupling 23, separate transmission separately, totally eight up and down of leveling section intermediate calender rolls B2() also be drive roll, connect with leveling section gear distribution box 25 by leveling section shaft coupling 26 respectively, separate transmission separately, other each roller (backing roll and smoothing roll) is driven roll.When actual production, bending section will be with steel to carry out the secondary alternating bending, in the present embodiment, because the less (Ф≤70mm) in roller footpath, so that the bending radius of steel plate is also just less, the iron oxide cortex of surface of steel plate is just easily destroyed, for favourable condition has been created in pickling, also is consistent or leveling with random bending; The leveling section will be with further leveling of steel (steel plate), reach and improve plate shape purpose.

Referring to accompanying drawing 2, Fig. 3, Fig. 4, be the small-roller-diameter multi-roller straightening machine front view, band steel 17 is introduced from the left side from left side central portion, through crooked (broken phosphorus) section, draw from right side central after entering again leveling section aligning, in the work, bending section top roll group I(4) and top roll group II(5) connect with lift beam 6 on the bending section and realize simultaneously liftings by bending section lift 7, lower roll group I(8) and lower roll group II(9) be installed under the bending section on the lift beam 10, by the 11 simultaneously liftings of bending section lifting hydraulic cylinder, realize that bending section works alone; Leveling section top roll group 15 connects with lift beam 14, realizes simultaneously lifting by lift 13, and leveling section lower roll group 18 and lift beam 19 direct connections realize simultaneously lifting by lifting hydraulic cylinder 20.The intermediate calender rolls of bending section and leveling section is drive roll, and backing roll and working roll (smoothing roll) are driven roll, and working roll contacts with steel plate 17; Leveling section top roll group 15 and the 18 respectively liftings of lower roll group realize working alone, and can devote oneself to work according to steel plate state needs.

Referring to accompanying

drawing

5,6,7, crooked (broken phosphorus) section is below this figure, and driving motor 21 drives eight shaft couplings 23 by gear distribution box 22, drives respectively totally eight up and down of crooked (broken phosphorus) section intermediate calender rolls A12 and A22() rotate; The leveling section up, driving motor 24 drives eight shaft couplings 26 by gear distribution box 25, drives respectively totally eight up and down of leveling section intermediate calender rolls B2() rotate.

Small-roller-diameter multi-roller straightening machine of the present invention, on the applicable push pull pickling line (every volume all threading, tension force is less), applicable broken phosphorus and leveling band steel, reduce the acid consumption in the pickling, leveling band steel is the cold rolling condition of having created of subsequent processing simultaneously, applying of it has positive meaning to improving the steel plate rolling quality of production and reducing energy consumption.

Claims

1. small-roller-diameter multi-roller straightening machine, comprise main motor, have more shaft gear deceleration distributor box, Hooks coupling universal coupling, bending section bending roll group, leveling section smoothing roll group, the bending section lifting hydraulic cylinder, leveling section lifting hydraulic cylinder, memorial archway, described bending section bending roll group and leveling section smoothing roll group are by backing roll, intermediate calender rolls and smoothing roll form, it is characterized in that: described backing roll and smoothing roll are driven roll, intermediate calender rolls is drive roll, the smoothing roll in the bending section bending roll group, the smoothing roll of leveling section smoothing roll group all is the pony roll gauge structure that the roll body diameter is not more than 70mm.