CN1515364A

CN1515364A - Method for raising correcting capability of roller correcting machine

Info

Publication number: CN1515364A
Application number: CNA031013848A
Authority: CN
Inventors: 张本源; 张先荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-07
Filing date: 2003-01-07
Publication date: 2004-07-28
Anticipated expiration: 2023-01-07
Also published as: CN1238128C

Abstract

The present invention relates to a forging equipment for shaping metal material-gagger. It includes machine frame, working roller, guide roller, supporting roller, movable cross-beam, fixed cross-beam, main driving system, downward-pressing and incleaning mechanism and control system. It utilizes the increment of the number of supporting rollers and its bearing capacity and reduces the number of working rollers, converts two different correcting modes of that the roller rows are parallel or not paralle, and adopts the roller division main driving technique so as to raise the capacity of gagger for correcting thick plate or high-strength plate.

Description

Increase gaugger and correct the method for ability

The present invention relates to metal material is carried out the forging equipment of shaping---gaugger, as roller type leveling machine.It comprises frame, working roll, deflector roll, backing roll, moved cross beam, fixed cross beam, main transmission, depress and leaning device, control system etc.

The objective of the invention is to enlarge the shaping capability of gaugger and the scope of adaptation, the specification that makes less gaugger shaping metal material is (as the thickness of steel plate, the yield limit of material etc.) rising one or half class, equipment purchase person is economized on the use of funds, make device fabrication person improve competitiveness of product.

As the nine roller plate flattening machines of 25 * 3200 * 400Mpa in the industry standard of China and seven rollers of 36 * 3200 * 400Mpa are two adjacent specifications, if correcting the specification of 26～32 * 3200 * 400Mpa, customer requirements often has only the roller type leveling machine that uses more than half shelves or a grade, purpose of the present invention is exactly on the nine roller plate flattening machines of 25 * 3200 * 400Mpa, strengthen by the part, just can correct 26～32 * 3200 * 400Mpa steel plate or 25 * 3200 but yield limit greater than the sheet material specification of 400Mpa.

Method of the present invention is:

1. increase the quantity and the bearing capacity of backing roll, arbor press can reduce or reduce the roller number of working roll easily simultaneously.For example increase the backing roll quantity of upper working rolls and lower working rolls, make the deflector roll of independent lifting rise to extreme position, make deflector roll not participate in rectification work, the working roll number has just reduced two.After becoming seven rollers as nine roller arbor presses, under identical rectification technology, total corrective force reduces to original 71.4%.If deflector roll is dropped to the working position, just return to original roller number.

Total corrective force ∑ P=4 * (n-2) * (1 ÷ K1+1) * M ÷ t

N is the roller number in the following formula, and K1 is a workpiece cross sectional shape coefficient, and M is a plastic bending moment, and t is roll spacing, and total corrective force is with (n-2) proportional.Because the roller number reduces, correct the also corresponding minimizing of general power.The arbor press general power is constant substantially, can increase workpiece thickness of slab or yield limit.When the roller number more for a long time, the limit roller of fixing row's roller also can be made can be for convenience detach and install, the quantity that becomes roller can reach 4.Can only carry out run-in index behind this method change roller and depress small deformation amount rectification workpiece.

When the roll surface effective length falls short of, can adopt the backing roll of "T"-shaped structure, to increase the quantity and the bearing capacity of backing roll, this structure has only a supporting roller base in the centre, adjust base and do not take the useful space, the backing roll mandrel is fixed on the supporting roller base, and the two-side supporting roller is a cantilevered fashion, in the supporting roller shell big, a fairly large number of rolling bearing of bearing capacity is installed.

2. on the basis of method 1, arbor press can be changed between the parallel and not parallel two kinds of rectification modes of roller row easily.For example movable row's roller contains the deflector roll of two independent liftings, and walking beam can parallel lifting, but also integral inclination.Adopt not parallel rectification mode can reduce the power of total corrective force of complete machine and main motor.When mechanical interference was serious, the technology that main transmission can take branch roller master to drive comprised that a part of roller is passive or the auxilliary driving of small-power (can be with limit to turn round device).A technology of under the less situation of roll spacing, adopt dividing the roller master to drive, reductor can be located at the both sides of machine, and one times of the space enlargement of reductor output gear and shaft coupling can increase the ability of main transmission easily.In dividing roller to drive can to eliminate, a series of problems such as the mechanical interference that when not parallel rectification technology, produces of slab, negative torque.See patent ZL 94224750.7, ZL 99237340.9.

Appropriate design roller footpath, roll spacing, increase the quantity and the ability of backing roll, load and contact stress that their satisfied increase thicknesss of slab or workpiece yield limit are increased, and frame, screw-down, lower and upper cross-member, the design (calculated) load of main motor current can not increase and a small amount of increasing, and complete machine capability can have bigger increase.The present invention both had been suitable for old scrap build and also had been suitable for new product development.

Figure one is embodiments of the invention.Wherein 1,9 is deflector roll, and 2,3,4,5,6,7,8 is working roll.Deflector roll 1,9 liftings separately when deflector roll 1,9 is common nine roller arbor presses during at shown position, are seven roller arbor presses when deflector roll 1,9 rises to limes superiors, and 1,3,5,7,9 five roller can be roller row multiple operation mode with moved cross beam one lifting again.Do not draw among the backing roll figure that strengthens.

Figure two is for returning to common nine roller arbor presses, on

arrange

1,3,5,7,9 five roller with the moved cross beam integral inclination, nine rollers are all participated in rectification work.The backing roll that strengthens does not draw.

Figure three is embodiments of the invention.Deflector roll 1,9 rises to extreme position, does not participate in rectification work, on arrange three working rolls with the moved cross beam integral inclination, adjust input and output material opening amount, have seven rollers and participate in the rectification work this moment.When correcting the load increase, it is little that

roller

2,8 becomes limit roller load, and the load of roller 3,7 increases less, and roller 4,5,6 loads increase is more, and local reinforcement is answered at upper and lower beam supporting roller place, increases the quantity and the bearing capacity of backing roll, the load after the adaptation increase.The backing roll that strengthens does not draw.Main transmission can be adopted branch roller actuation techniques.

Claims

The present invention relates to metal material is carried out the forging equipment of shaping---gaugger, comprise frame, working roll, deflector roll, backing roll, moved cross beam, fixed cross beam, main transmission, depress and leaning device, control system etc.

Method of the present invention is:

Increase the quantity and the bearing capacity of backing roll, arbor press can easily reduce or reduce the roller number of working roll simultaneously, and disposable roller number can be the deflector roll (limit roller) of row's roller, also can be the upper and lower two limit rollers (deflector roll) of arranging rollers; Arbor press can be easily be changed between the parallel and not parallel two kinds of rectification modes of roller row, and promptly movable row's working roll can parallel lifting, also can tilt, and movable row's working roll tilts to cause when mechanical interference is serious that main transmission can be adopted branch roller actuation techniques.