CN2357848Y

CN2357848Y - Intermediate roller driven six-roller mill

Info

Publication number: CN2357848Y
Application number: CN 98209676
Authority: CN
Inventors: 张凤泉
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-01-18
Filing date: 1998-01-18
Publication date: 2000-01-12
Anticipated expiration: 2008-01-18

Abstract

The utility model relates to an intermediate roller driven six-roller mill which is an improvement on an HC mill. A bearing seat of an intermediate roller is supported on a frame through a movable beam and a movable frame, the movable frame is driven by a movable cylinder, and simultaneously, the intermediate roller is penetrated through the movable frame, is connected with a main drive connecting shaft passing through a long spline or a long flat head, the intermediate roller can be used as a driving roller and has a good axial movement property, and thus a work roller diameter is thoroughly reduced, and the advantages of energy saving, material saving, and consumption reduction, etc. can be achieved.

Description

Intermediate calender rolls transmission six-high cluster mill

The utility model relates to a kind of six-high cluster mill of intermediate calender rolls transmission, belongs to the rolling metal processing technique field.

The HC six-high cluster mill is a kind of strip mill that HIT's the seventies is released, and it has good plate shape control ability and obvious energy-saving effect.Begin one's study HC milling train technology and successfully develop similar type-MS milling train of China's the eighties.This class milling train is six roll structures, is main transmission with the working roll, and its intermediate calender rolls has axis to locomotive function.Because the defective on the structural design causes domestic about 50% equipment to fail to give full play to its due benefit.The subject matter of HC milling train (the MS milling train that comprises domestic-developed) is:

1, adopting working roll is main transmission, and dwindling of its roller footpath is restricted, and required power is bigger, and minimum rolled thickness strengthens;

2, intermediate calender rolls axial moving mechanism rigidity is lower, and mobile accuracy is poor, causes motion unstable, the lock-bit difficulty;

3, the preparation of three breaker roll barrel lengths is improper, for the roll forming adjustment brings difficulty, causes the roller consumption big again, the cost height;

4, the roll gap of milling train is adjusted unreasonable.

The purpose of this utility model is to provide a kind of new structure of six-high cluster mill, keeps it when making intermediate calender rolls as main transmission and moves axially and become possibility, thereby solve the above-mentioned difficulties that present HC milling train exists.

The technical solution of the utility model is achieved in that a kind of milling train that comprises six roller rollers system, the bearing block of its intermediate calender rolls is bearing on two walking beams that be arranged in parallel by clamp, movable roof beam structure is held in the horizontal dovetail groove of built-in beam, built-in beam and rolling-mill housing are connected, the outer end of two walking beams is fixedly connected by movable stand, the two ends of movable stand are provided with movable cylinder, movable cylinder is fixed on the frame through the cylinder seat, described clamp and walking beam are connected, clamp is connected through the vertical direction chute with the bearing block of jackshaft, the outer end of jackshaft is connected with the axle that connects of main transmission with long spline or long homalocephalus structure, constitutes axially movable intermediate calender rolls transmission mechanism.

Task of the present utility model also realizes in the following manner: described milling train roll surface adopts not isometric preparation, the roll surface length of intermediate calender rolls is got the maximum nominal width of institute's rolling sheets, the roll surface length of backing roll is than the long 50-100mm of intermediate calender rolls, and the roll surface length of working roll is than the long 100-200mm of intermediate calender rolls.

Described milling train adopts the plunger case rolling line to adjust mode, and plunger case is installed on frame lower, and the bearing block support of lower support roller is in the outer end of plunger.

After adopting technique scheme, can make the HC milling train realize the intermediate calender rolls transmission, working roll no longer bears rolling torsion, can reduce roller diameter significantly, and energy-saving material-saving reduces consuming, and I rolling thickness is reduced.It is big that intermediate calender rolls moves axially rigidity, moves steadily, and the lock in place performance is improved.The not isometric preparation of roll surface reduces harmful contact of roll shop building, has both improved the roller effect of working roll, can reduce the axial internal clearance of intermediate calender rolls again, reduces roll consumption.The rolling line adjustment mode that is adopted makes rolling line adjust easy to operate and is convenient to change axle.

Describe technology contents of the present utility model in detail below in conjunction with drawings and Examples:

Fig. 1 is an intermediate calender rolls transmission six-high cluster mill main structure schematic diagram

Fig. 2 arranges schematic diagram for the HC roller system of rolling mill

Fig. 3 is an intermediate calender rolls axial moving mechanism schematic diagram

Fig. 4 is the A-A view of Fig. 3

Fig. 5 is the B-B view of Fig. 3

Among the figure: 1, working roll 2, intermediate calender rolls 3, backing roll 4, axle sleeve 5, connect axle

6, walking beam 7, movable stand 8, plunger case 9, frame

10, lower support roll bearing seat 11, intermediate calender rolls bearing block 12, clamp

13, fixed mount 15, cylinder seat 16, movable cylinder 17, dovetail groove

Working roll 1, intermediate calender rolls 2 and backing roll 3 constitute six roller system among Fig. 1 and Fig. 2, and wherein there is an eccentric e in the intermediate calender rolls axis for spring bearing and working roll axis.

Intermediate calender rolls 2 spindle noses are long spline or long homalocephalus, be connected with the axle 5 that connects of main transmission by axle sleeve 4, fixedly connected through movable stand 7 with walking beam 6 its outer ends that jackshaft 2 be arranged in parallel, the centre bore of movable stand 7 is greater than the diameter of axle sleeve 4, and the jackshaft axle sleeve passes movable stand and installs.Bearing block 10 lower support of lower support roller 3 are on rolling line is adjusted plunger case 8, and plunger case 8 is installed on the frame 9, just can realize the rolling line adjustment by oil circuit, and make and change the axle operation and become very convenient, and this is a kind of little and effective rolling line adjustment design of investing.

Fig. 3, Fig. 4 and Fig. 5 elaborate to the axial moving mechanism of intermediate calender rolls:

Two bearing blocks 11 of intermediate calender rolls 2 are to be supported on the walking beam 6 by clamp 12, and clamp 12 is fixedlyed connected with walking beam 6, and clamp 12 is connected through the vertical direction chute with bearing block 11, makes that bearing block 11 is removable at vertical direction.6 of walking beams are held in the dovetail groove 17 of built-in

beam

13, and 13 of built-in beams are fixedlyed connected with frame 9, make intermediate calender rolls move steadily, and rigidity is big.Movable stand 7 connects the outer end of two walking beams that be arranged in parallel 6, and the plunger of movable cylinder 16 is connected with the two ends of movable stand 7, and cylinder seat 15 is connected with frame 9, and under the driving of movable cylinder 16, walking beam 6 drives intermediate calender rolls 2 and moves axially like this.There is mobile space in the medium pore diameter of movable stand 7 between axle sleeve 4 and the movable stand 7 than meeting an axle sleeve 4 big 30-50mm among Fig. 2 when intermediate calender rolls is depressed.The effect of built-in beam 13 is except support movable beam 6, and the intermediate portion also is used for the bearing block location and the axial restraint of working roll 1, and provides bending roller force for working roll 1.

In order fundamentally to reduce harmful contact length of roll shop building, improve the roller effect of working roll, reduce the axial internal clearance of intermediate calender rolls, the utility model is recommended the not isometric preparation design of a kind of roll surface: the roll surface length that makes intermediate calender rolls 2 is the maximum nominal width of rolled plate, the roll surface length of working roll 1 is than intermediate calender rolls 2 big 100-200mm, and the roll surface length of backing roll 3 is than intermediate calender rolls 2 big 50-100mm.According to rolling therory as can be known, roll-force is directly proportional with work roll diameter approximately, roll-force apart from approximately with square being directly proportional of work roll diameter, and minimum rolled thickness is directly proportional with roller diameter, the utility model changes power transmission shaft into brought behind the intermediate calender rolls technical difficulty owing to successfully having solved, make the diameter of working roll can reduce by 80%, the energy-saving material-saving effect of bringing thus is conspicuous.

Claims

1. intermediate calender rolls transmission six-high cluster mill, the bearing block (11) that it is characterized in that intermediate calender rolls (2) is bearing on two walking beams (6) that be arranged in parallel by clamp (12), walking beam (6) frame is held in the horizontal dovetail groove (17) of built-in beam (13), built-in beam (13) is connected with rolling-mill housing (9), the outer end of two walking beams (6) is fixedly connected by movable stand (4), the two ends of movable stand (4) are provided with movable cylinder (16), movable cylinder (16) is fixed on the frame (9) through cylinder seat (15), described clamp (12) is connected with walking beam (6), clamp (12) is connected through the vertical direction chute with the bearing block (11) of jackshaft (2), the outer end of jackshaft (2) is connected with the axle (5) that connects of main transmission with long spline or long homalocephalus structure, constitutes axially movable intermediate calender rolls transmission mechanism.

2. intermediate calender rolls transmission six-high cluster mill according to claim 1, it is characterized in that described milling train roll surface adopts not isometric preparation, the roll surface length of intermediate calender rolls (2) is got the maximum nominal width of institute's rolling sheets, the roll surface length of backing roll (3) is than the long 50-100mm of intermediate calender rolls (2), and the roll surface length of working roll (1) is than the long 100-200mm of intermediate calender rolls (2).

3. intermediate calender rolls transmission six-high cluster mill according to claim 1 is characterized in that described milling train adopts the plunger case rolling line to adjust mode, and plunger case (8) is installed on frame (9) bottom, and the bearing block support of lower support roller (3) is in the outer end of plunger.