CN106734221A - A kind of eighteen-high mill interchangeable for the working roll roller system of cold continuous rolling - Google Patents
A kind of eighteen-high mill interchangeable for the working roll roller system of cold continuous rolling Download PDFInfo
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- CN106734221A CN106734221A CN201611045257.4A CN201611045257A CN106734221A CN 106734221 A CN106734221 A CN 106734221A CN 201611045257 A CN201611045257 A CN 201611045257A CN 106734221 A CN106734221 A CN 106734221A
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- working roll
- roll
- major diameter
- calender rolls
- intermediate calender
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B13/023—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally the axis of the rolls being other than perpendicular to the direction of movement of the product, e.g. cross-rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
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- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Metal Rolling (AREA)
Abstract
The invention provides the interchangeable eighteen-high mill of working roll roller system, including two groups of working roll roller systems, when roller system switches, support roller, intermediate calender rolls, middle roll bending and motor, reduction box, spindle are without adjustment, shorten switching time, improve equipment dependability and production efficiency.When major diameter working roll system receives horizontal force, there is the design of bearing block using working roll, the horizontal force of part is delivered in frame by bearing block, side roller is solved to moving the support instability problem for causing on the strong point of major diameter working roll, the compensating cylinder designed on bottom working roll bearing block has the function of roller, balance, roll change concurrently to top working roll, simple structure, it is highly reliable.The present invention only increases a set of major diameter working roll system on the basis of original eighteen-high mill, widens the scope of product：Use minor diameter working roll, the thin slab product such as article of manufacture material；Using major diameter working roll, the product of the general thickness such as the production welded tube material of economical and efficient improves the competitiveness of manufacturer.
Description
Technical field
The invention belongs to the eighteen-high mill in stainless steel cold continuous rolling field, and in particular to a kind of working roll for cold continuous rolling
The interchangeable eighteen-high mill of roller system.
Background technology
Eighteen-high mill is widely used in stainless steel cold continuous rolling, and because work roll diameter is small, horizontal stiffness difference is, it is necessary to side
Support of the support roller to working roll in the horizontal direction, eighteen-high mill can produce the product of more Thin Specs.
Eighteen-high mill is as follows in this area conventional structure：
Eighteen-high mill has a pair of intermediate calender rolls, upper intermediate calender rolls and lower intermediate calender rolls, related to frame by bearing block and bending cylinder block
Connection；A pair working rolls of free minor diameter, shaftless bearing, bottom working roll is leaned against on lower intermediate calender rolls, and top working roll needs work
Making roller lifting device makes it when roll gap or roll change is opened, and working roll can be moved upward to fixed position set in advance.Side
Support roller resists the horizontal curvature of working roll against on the work rolls, making working roll position in the horizontal direction.
Eighteen-high mill problem known in the art is that minor diameter working roller abrasion is very fast and needs are quite changed frequently
Replacement, at most one action roller will be changed per being continuously rolled to volume 3~5, while side roller also has certain roller to consume；Another thing
It is in fact, on the 18 roller type working roll amounts of refacing（Roll diameter change scope）, because 2 reasons can not be made thin big：1st, work
Roller roller impewdance matching depth in itself, quench-hardened case is too deep to cause the reduction of core of the roll toughness, easy roll breakage.2nd, intermediate calender rolls, working roll
And geometrical relationship between the support roller of side, each roller diameter has an excursion, can be produced when the amount of refacing is larger collateral
Interference problem between support roller swing arm and roll.
2 reasons of the above cause the roller consumption that 18 roller cold continuous rollings are produced larger.
Current country stainless steel arrowband（850mm series）The problem that cold continuous rolling production faces is to build one 18
Roller stainless steel cold continuous rolling production line, be not in production welded tube material etc. it is very thin, it is low value-added cold in about 0.58~0.72mm thickness
When rolling product, due to big using small roll neck roller consumption, roll change frequency is high, causes that production cost is high, efficiency is low, therefore uses major diameter
Working roll is ideal；But if the article of manufacture material such as Thin Specs such as stainless steel decoration panel, about 0.3~0.45mm thickness
During high value added product, need again using the working roll of minor diameter, roll neck is about 140~150mm.It is noted that for connecting
The working roll roll neck of milling train can not be too small, if be less than 120mm, can occur in rolling for 4mm left and right thicknesses routine supplied materials
The serious problem skidded.
According to case above, without building two production lines respectively, needed to increase product specification and the scope of application
Want a kind of work roll diameter to use scope bigger than original, such as there is a set of major diameter working roll system, a set of minor diameter per rolling mill
Working roll system, and the eighteen-high mill that can be quickly switched between two sets.A kind of method is to be transformed into four-roller machine
The way of eighteen-high mill, it is necessary to when change back four-high mill by eighteen-high mill again, the shortcoming of this method is quite big：First,
Eighteen-high mill has intermediate calender rolls, working roll, and when 18 rollers are transformed into four-roller, the work roll diameter of four-high mill will be with 18 rollers
Intermediate calender rolls are suitable with work roll diameter sum, and middle roller diameter is about 2.5 times of work roll diameter, so since four-roller machine
Work roll diameter is about 3.5 times or so of 18 roller machine work roll diameters, and according to rolling therory, such four-roller machine working roll is straight
The minimum rolled thickness in footpath is about 0.8mm, it is impossible to meet product thickness requirement；And the roll-force that small roll neck needs is small, big roller
The roll-force that footpath needs is big, two groups of work roll diameters of same frame across shelves cross conference cause the milling train force-power parameter such as roll-force,
Roll torque energy parameter redundancy is excessive.Second, it is necessary to the equipment for adjusting has intermediate calender rolls when 18 rollers and four-roller are mutually transformed
System, working roll system and corresponding working roll bending cylinder block, intermediate calender rolls bending cylinder block, balance, traversing cylinder block and transmission connecting shaft etc.
Device, for a milling train, the equipment in framework window is in addition to support roller, and remaining structure is basic for such adjustment amount
All have adjusted, retrofit work amount is very big, and time-consuming, at least transformed in times such as overhauls, inevitably influence production
Flexibility, efficiency and often dismount the integrity problem for bringing.
Another method is using only substituting original minor diameter by increasing by one group of free working roll of major diameter
Working roll, can have the disadvantage that：First, side support roller should be designed in working roll height with the strong point of major diameter working roll
Center section, to bear the horizontal force that working roll is subject to.After changing major diameter working roll into, due to the movement locus and work of swing arm
Make roller and side support roller geometry site, side support roller is significantly upper with the strong point of major diameter working roll to move, by level point
During power, stability of strutting system declines；Second, when work roll neck is different, the hoisting depth change of working roll lifting device, Yi Taogong
Making roller lifting device needs to ensure multiple accurately height and positions, though detection or control reliability for height and position with
And device configuration cost is all unfavorable.
The content of the invention
Present invention aim to address traditional eighteen-high mill cannot quickly and safe and convenient realize major diameter work
The problem of the replacing of roller and minor diameter working roll.
Therefore, the invention provides a kind of eighteen-high mill interchangeable for the working roll roller system of cold continuous rolling, including frame,
Motor, reduction box and two universal-joint spindles, the output shaft of the motor are connected to the input shaft of reduction box, the output shaft of reduction box
Two universal-joint spindles are connected to, two universal-joint spindles respectively connected intermediate calender rolls and lower intermediate calender rolls, the surface of upper intermediate calender rolls
It is top backing up roll, is lower support roll immediately below lower intermediate calender rolls, the two ends of the top backing up roll is installed with top backing up roll bearing block,
Top backing up roll is slided by top backing up roll bearing block in frame, and the two ends of lower support roll are installed with lower support roll bearing block, under
Backing roll is slided by lower support roll bearing block in frame, and the two ends of the upper intermediate calender rolls are installed with middle roll bearing seat,
The two ends of lower intermediate calender rolls are installed with lower middle roll bearing seat, are set in middle roll bearing seat and lower middle roll bearing seat on each
There is intermediate calender rolls bending cylinder block, intermediate calender rolls bending cylinder block is arranged in frame, and side roller is fixed on frame in hinged way by swing arm
On, major diameter working roll system or minor diameter working roll system are installed between the upper intermediate calender rolls and lower intermediate calender rolls.
The major diameter working roll system includes major diameter top working roll and major diameter bottom working roll, major diameter top working roll
It is respectively arranged at two ends with a major diameter top working roll bearing block, major diameter bottom working roll is respectively arranged at two ends with a major diameter
Working roll bearing block, balance is provided between major diameter top working roll bearing block opposing upper and lower and major diameter bottom working roll bearing block
Cylinder, compensating cylinder is arranged on major diameter bottom working roll bearing block.
The minor diameter working roll system includes minor diameter top working roll and minor diameter bottom working roll, and correspondence is small straight in frame
At the top working roll of footpath, minor diameter top working roll lifting device is installed.
Described major diameter top working roll and the diameter of major diameter bottom working roll are 170~190mm.
Described minor diameter top working roll and the diameter of minor diameter bottom working roll are 120~150mm.
A kind of working roll replacing options of eighteen-high mill for cold continuous rolling, comprise the following steps：
Step one：Be sequentially connected motor, reduction box, two universal-joint spindles and frame, make upper and lower two universal-joint spindles respectively with it is upper
Intermediate calender rolls and lower intermediate calender rolls are connected, and then install top backing up roll in the surface of upper intermediate calender rolls, and the underface of lower intermediate calender rolls is installed
Lower support roll, and back-up chock is installed at the two ends of top backing up roll, lower support roll shaft is installed at the two ends of lower support roll
Bearing, middle roll bearing seat is installed at the two ends of upper intermediate calender rolls, the middle roll bearing seat in the case where the two ends of lower intermediate calender rolls are installed,
An intermediate calender rolls bending cylinder block is installed in frame, makes to block in roll bearing seat and each lower middle roll bearing seat in the middle of on each
In intermediate calender rolls bending cylinder block；
Step 2：During to the high value added product for producing 0.3~0.45mm thickness, minor diameter working roll system is installed, will be small straight
At footpath top working roll and the rack-mounted working roll position of minor diameter bottom working roll, and minor diameter top working roll and it is upper in
Between location arrangements side roller between roller, minor diameter bottom working roll and lower intermediate calender rolls, side roller is fixed in hinged way by swing arm
In frame, then minor diameter top working roll lifting device is installed in frame, for lifting minor diameter top working roll；
Step 3：To during low value-added cold-rolled products, install major diameter working roll system in production 0.58~0.72mm thickness,
Remove minor diameter top working roll, minor diameter bottom working roll and minor diameter top working roll lifting device, by major diameter top working roll and
At the rack-mounted working roll position of major diameter bottom working roll, and one is respectively mounted at the two ends of major diameter top working roll
Major diameter top working roll bearing block, a major diameter bottom working roll bearing block is respectively mounted at the two ends of major diameter bottom working roll,
Compensating cylinder is installed on major diameter bottom working roll bearing block, compensating cylinder is located at major diameter top working roll bearing block opposing upper and lower
And major diameter bottom working roll bearing block between；
Step 4：According to the requirement of production cold-rolled products, selection step 2 or step 3 change working roll.
The diameter of the major diameter top working roll and major diameter bottom working roll is 170~190mm, minor diameter top working roll and
The diameter of minor diameter bottom working roll is 120~150mm.
Beneficial effects of the present invention：This ten eight rollings interchangeable for the working roll roller system of cold continuous rolling that the present invention is provided
Machine, with two sets of working roll systems of different-diameter size, in addition to being had any different between two sets of working roll systems, two sets of working roll systems
The device in a suite of racks window is shared, when two groups of working roll roller systems switch, support roller, intermediate calender rolls, middle roll bending and transmission
Motor, reduction box, spindle etc. without adjustment, shorten switching time, improve the reliability and production efficiency of equipment.It is big straight
When footpath working roll system receives horizontal force, due to the design for having bearing block using working roll, the horizontal force of part can be passed through working roll
Bearing block is delivered in frame, largely solves side roller to moving the support for causing not on the strong point of major diameter working roll
Stable problem.For major diameter working roll roller system, the compensating cylinder designed on bottom working roll bearing block has concurrently curved to top working roll
Roller, balance, the function of roll change, simple structure are highly reliable.Eighteen-high mill of the invention can be in original eighteen-high mill base
On plinth, only increase a set of major diameter working roll system, in the case that cost increases very little, widen the scope of product：Use minor diameter
The thin slab products such as working roll, article of manufacture material；Use major diameter working roll, the general thickness such as the production welded tube material of economical and efficient
Product, improve the competitiveness of manufacturer.
The present invention is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is minor diameter working roll system side structure schematic diagram.
Fig. 2 is minor diameter working roll system positive structure schematic.
Fig. 3 is Fig. 2 axial directions intermediate cross-section schematic diagram.
Fig. 4 is major diameter working roll system positive structure schematic.
Fig. 5 is major diameter working roll system schematic diagram.
Description of reference numerals：1st, frame；2nd, top backing up roll；3rd, upper intermediate calender rolls；4th, intermediate calender rolls bending cylinder block；5th, side roller；6、
Major diameter top working roll；7th, major diameter bottom working roll；8th, lower intermediate calender rolls；9th, lower support roll；10th, minor diameter top working roll lifting dress
Put；11st, universal-joint spindle；12nd, reduction box；13rd, motor；14th, compensating cylinder；15th, minor diameter top working roll；16th, worked under lower diameter
Roller；
2.1st, upper middle roll bearing seat；3.1st, upper middle roll bearing seat；5.1st, swing arm；6.1st, major diameter top working roll bearing block；
7.1st, major diameter bottom working roll bearing block；8.1st, lower middle roll bearing seat；9.1st, lower support roll bearing block.
Specific embodiment
Embodiment 1：
A kind of eighteen-high mill interchangeable for the working roll roller system of cold continuous rolling is present embodiments provided, as shown in figure 1, including machine
Frame 1, motor 13, reduction box 12 and two universal-joint spindles 11, the output shaft of the motor 13 are connected to the input shaft of reduction box 12,
The output shaft of reduction box 12 is connected to two universal-joint spindles 11, two universal-joint spindles 11 respectively connected intermediate calender rolls 3 and it is lower in
Between roller 8, the surface of upper intermediate calender rolls 3 is top backing up roll 2, and the underface of lower intermediate calender rolls 8 is lower support roll 9, the top backing up roll 2
Two ends top backing up roll bearing block 2.1 is installed, top backing up roll 2 is slided by top backing up roll bearing block 2.1 in frame 1, under
The two ends of backing roll 9 are installed with lower support roll bearing block 9.1, and lower support roll 9 is by lower support roll bearing block 9.1 in frame 1
Slide, the two ends of the upper intermediate calender rolls 3 are installed with middle roll bearing seat 3.1, and the two ends of lower intermediate calender rolls 8 are installed with lower intermediate calender rolls
Bearing block 8.1, intermediate calender rolls bending cylinder block 4 is designed with each in middle roll bearing seat 3.1 and lower middle roll bearing seat 8.1,
Intermediate calender rolls bending cylinder block 4 is arranged in frame 1, as shown in figure 3, side roller 5 is fixed on frame 1 in hinged way by swing arm 5.1
On, major diameter working roll system or minor diameter working roll system are installed between the upper intermediate calender rolls 3 and lower intermediate calender rolls 8.
It should be noted that frame 1, motor 13, reduction box 12 and two universal-joint spindles 11, upper intermediate calender rolls 3 and lower centres
Roller 8, top backing up roll 2 and lower support roll 9 are all existing routine techniques, belong to ripe existing structure, its specific structure and
Connection installation relation is not explained in detail not as inventive point of the invention.Axle is fitted with above-mentioned bearing block
Hold.
Top backing up roll 2 is slided by top backing up roll bearing block 2.1 in frame 1, and lower support roll 9 passes through lower support roll bearing
Seat 9.1 is slided in frame 1.Intermediate calender rolls bending cylinder block 4 drive the upper intermediate calender rolls 3 of middle roll bearing seat 3.1 and 8.1 pairs and it is lower in
Between the positive and negative roller of roller 8 operation.Side roller 5 fixes 1 in frame in hinged way by swing arm 5.1 and frame 1.Side roller 5 is pressed against
Working roll resists working roll horizontal curvature.The kind of drive is intermediate roller driven, i.e., motor 13 passes through reduction box 12 and two ten thousand
Upper intermediate calender rolls 3 and lower intermediate calender rolls 8 are driven to spindle 11.
The eighteen-high mill has the working roll systems of two sets of replaceable different-diameter sizes, except two sets of working roll systems it
Between have any different beyond, two sets of working roll systems share the device in a suite of racks windows, such as support roller, intermediate calender rolls, middle roll bending
And driving motor, reduction box, spindle etc..
Two sets of working roll systems correspond to the product of different positioning and specification limit respectively, specific such as domestic stainless steel arrowband
（850mm series）Cold continuous rolling is produced, and builds a 18 roller stainless steel cold continuous rolling production lines, is not very in production welded tube material etc.
It is thin, in about 0.58~0.72mm thickness during low value-added cold-rolled products, because using small roll neck roller consumption, greatly, roll change frequency is high,
Cause that production cost is high, efficiency is low, therefore use major diameter working roll, such as the working roll of a diameter of 170~Φ of Φ 190mm, root
According to rolling therory, the product of above thickness requirement can be produced using the working roll of such major diameter, and during roll change interval
Between can increased, meanwhile, work roll diameter is compared original small roll neck working roll and be increased, working roll bending resistance with roll
Roller diameter is the relation of 3 powers, and bending resistance increase when working roll is less big by horizontal force, can not put into side roller, reduce
Side roller is lost.
If the article of manufacture material such as Thin Specs, the high value added product of about 0.3~0.45mm thickness such as stainless steel decoration panel
When, the thickness is rolled down to, according to rolling therory, it is necessary to which, using the working roll of minor diameter, roll neck can not be more than 150mm.Say
Bright, the working roll roll neck for tandem mill can not be too small, if be less than 120mm, exists for 4mm left and right thicknesses routine supplied materials
The problem of serious skidding can occur during rolling, therefore minor diameter work roll diameter can be designed as 120~Φ of Φ 150mm.
It is an object of the invention to provide a kind of eighteen-high mill, it is applied in tandem mills, can either article of manufacture
The thin slab products such as material, again can be with the product of the general thickness such as the production welded tube material of economical and efficient.
Embodiment 2：
On the basis of embodiment 1, as shown in Figure 4 and Figure 5, the major diameter working roll system includes the He of major diameter top working roll 6
Major diameter bottom working roll 7, major diameter top working roll 6 is respectively arranged at two ends with a major diameter top working roll bearing block 6.1, big straight
Footpath bottom working roll 7 is respectively arranged at two ends with a major diameter bottom working roll bearing block 7.1, major diameter top working roll opposing upper and lower
Compensating cylinder 14 is provided between bearing block 6.1 and major diameter bottom working roll bearing block 7.1, compensating cylinder 14 works under being arranged on major diameter
In roll bearing seat 7.1.The two ends of above-mentioned working roll are installed with bearing, and bearing is arranged in bearing block, and bearing block is all to install
In frame.
For major diameter working roll roller system, respectively major diameter top working roll 6 and the design major diameter of major diameter bottom working roll 7
Top working roll bearing block 6.1 and major diameter bottom working roll bearing block 7.1, are designed with major diameter bottom working roll bearing block 7.1
Compensating cylinder 14, balance is played a part of to major diameter top working roll 6.In roll change, compensating cylinder 14 is fully extended, by major diameter
Working roll 6 is raised to behind a level altitude position and carries out working roll and take out roller entering the roller replacing operations such as roller.In addition, in the hydraulic pressure of compensating cylinder 14
Bending system is designed in loop, and compensating cylinder 14 can also play the effect of the positive roller of working roll in rolling, adjust product plate shape.
That is, compensating cylinder 14 can take into account roller, balance and three kinds of functional requirements of roll change of working roll.
For major diameter working roll roller system, upper and lower working roll bearing block can glide on intermediate calender rolls bending cylinder block 4 is interior
It is dynamic, passed it on intermediate calender rolls bending cylinder block 4 when working roll is subject to horizontal force, it is then passed in frame 1, largely
On solve side roller to moving the support instability problem for causing on the strong point of major diameter working roll.
The beneficial effects of the present invention are, when two groups of working roll roller systems switch, support roller, intermediate calender rolls, middle roll bending and
Driving motor, reduction box, spindle etc. without adjustment, shorten switching time, improve the reliability and production efficiency of equipment.
When major diameter working roll system receives horizontal force, due to the design for having bearing block using working roll, the horizontal force of part can be passed through work
It is delivered in frame as roll bearing seat, largely solves side roller to moving the branch for causing on the strong point of major diameter working roll
Support instability problem.For major diameter working roll roller system, the compensating cylinder designed on bottom working roll bearing block is simultaneous to top working roll
There is the function of roller, balance, roll change, simple structure is highly reliable.Eighteen-high mill of the invention can be in original 18 rolling
On the basis of machine, only increase a set of major diameter working roll system, in the case that cost increases very little, widen the scope of product.
Embodiment 3：
On the basis of embodiment 1, as shown in Fig. 2 the minor diameter working roll system includes minor diameter top working roll 15 and small straight
Footpath bottom working roll 16, at correspondence minor diameter top working roll 15 in frame 1, is installed with minor diameter top working roll lifting device 10.
It should be strongly noted that minor diameter top working roll lifting device 10 is eighteen-high mill in cold continuous rolling process
Routine techniques, belongs to ripe existing structure, and its specific structure does not make detailed retouching not as inventive point of the invention
State.The two ends of above-mentioned working roll are installed with bearing, and bearing is arranged in bearing block, and bearing block is all mounted in frame.
The main distinction is when in use for two sets of working roll systems：
To minor diameter working roll system, minor diameter top working roll 15 is balanced using top working roll lifting device 10 to working roll；
When roller is changed jobs, minor diameter top working roll lifting device 10 lifted it is fully extended, by working roll lifting to a level altitude
Carry out working roll behind position and take out roller entering the roller replacing operations such as roller.
For major diameter working roll roller system, respectively major diameter top working roll 6 and the design major diameter of major diameter bottom working roll 7
Top working roll bearing block 6.1 and major diameter bottom working roll bearing block 7.1, are designed with major diameter bottom working roll bearing block 7.1
Compensating cylinder 14, balance is played a part of to major diameter top working roll 6.In roll change, compensating cylinder 14 is fully extended, by major diameter
Working roll 6 is raised to behind a level altitude position and carries out working roll and take out roller entering the roller replacing operations such as roller.In addition, in the hydraulic pressure of compensating cylinder 14
Bending system is designed in loop, and compensating cylinder 14 can also play the effect of the positive roller of working roll in rolling, adjust product plate shape.
That is, compensating cylinder 14 can take into account roller, balance and three kinds of functional requirements of roll change of working roll.
For major diameter working roll roller system, upper and lower working roll bearing block can glide on intermediate calender rolls bending cylinder block 4 is interior
It is dynamic, passed it on intermediate calender rolls bending cylinder block 4 when working roll is subject to horizontal force, it is then passed in frame 1, largely
On solve side roller to moving the support instability problem for causing on the strong point of major diameter working roll.
Embodiment 4：
On the basis of embodiment 2 or embodiment 3, described major diameter top working roll 6 and the diameter of major diameter bottom working roll 7
It is 170~190mm.Described minor diameter top working roll 15 and the diameter of minor diameter bottom working roll 16 are 120~150mm.
Embodiment 5：
A kind of working roll replacing options of eighteen-high mill for cold continuous rolling, comprise the following steps：
Step one：Motor 13,12, two universal-joint spindles 11 of reduction box and frame 1 are sequentially connected, make upper and lower two universal-joint spindles 11
It is connected with upper intermediate calender rolls 3 and lower intermediate calender rolls 8 respectively, top backing up roll 2, lower intermediate calender rolls 8 then is installed in the surface of upper intermediate calender rolls 3
Underface lower support roll 9 is installed, and back-up chock 2.1 is installed at the two ends of top backing up roll 2, in lower support roll 9
Lower support roll bearing block 9.1 is installed at two ends, middle roll bearing seat 3.1 is installed at the two ends of upper intermediate calender rolls 3, in lower intermediate calender rolls 8
Two ends roll bearing seat 8.1 in the middle of lower is installed, 4 intermediate calender rolls bending cylinder blocks 4 are installed in frame 1, make intermediate calender rolls on each
It is stuck in intermediate calender rolls bending cylinder block 4 in bearing block 3.1 and each lower middle roll bearing seat 8.1；
Step 2：During to the high value added product for producing 0.3~0.45mm thickness, minor diameter working roll system is installed, will be small straight
Footpath top working roll 15 and minor diameter bottom working roll 16 are arranged at the working roll position in frame 1, and in minor diameter top working roll
Location arrangements side roller 5 between 15 and upper intermediate calender rolls 3, minor diameter bottom working roll 16 and lower intermediate calender rolls 8, side roller 5 passes through swing arm 5.1
It is fixed in hinged way in frame 1, then minor diameter top working roll lifting device 10 is installed in frame 1, it is small for being lifted
Diameter top working roll 15；
Step 3：To during low value-added cold-rolled products, install major diameter working roll system in production 0.58~0.72mm thickness,
Minor diameter top working roll 15, minor diameter bottom working roll 16 and minor diameter top working roll lifting device 10 are removed, by work in major diameter
Make roller 6 and major diameter bottom working roll 7 is arranged at the working roll position in frame 1, and at the two ends of major diameter top working roll 6 point
Not An Zhuan a major diameter top working roll bearing block 6.1, be respectively mounted under a major diameter at the two ends of major diameter bottom working roll 7
Working roll bearing block 7.1, installs compensating cylinder 14 on major diameter bottom working roll bearing block 7.1, compensating cylinder 14 is located at phase up and down
To major diameter top working roll bearing block 6.1 and major diameter bottom working roll bearing block 7.1 between；
Step 4：According to the requirement of production cold-rolled products, selection step 2 or step 3 change working roll.
The eighteen-high mill has two sets of working roll systems of different-diameter size, except being had any different between two sets of working roll systems
In addition, the device in two sets of shared a suite of racks windows of working roll system, such as support roller, intermediate calender rolls, middle roll bending and transmission electricity
Machine, reduction box, spindle etc..
Two sets of working roll systems correspond to the product of different positioning and specification limit respectively, specific such as domestic stainless steel arrowband
（850mm series）Cold continuous rolling is produced, and builds a 18 roller stainless steel cold continuous rolling production lines, is not very in production welded tube material etc.
It is thin, in about 0.58~0.72mm thickness during low value-added cold-rolled products, because using small roll neck roller consumption, greatly, roll change frequency is high,
Cause that production cost is high, efficiency is low, therefore use major diameter working roll, such as the working roll of a diameter of 170~Φ of Φ 190mm, root
According to rolling therory, the product of above thickness requirement can be produced using the working roll of such major diameter, and during roll change interval
Between can increased, meanwhile, work roll diameter is compared original small roll neck working roll and be increased, working roll bending resistance with roll
Roller diameter is the relation of 3 powers, and bending resistance increase when working roll is less big by horizontal force, can not put into side roller, reduce
Side roller is lost.
If the article of manufacture material such as Thin Specs, the high value added product of about 0.3~0.45mm thickness such as stainless steel decoration panel
When, the thickness is rolled down to, according to rolling therory, it is necessary to which, using the working roll of minor diameter, roll neck can not be more than 150mm.Say
Bright, the working roll roll neck for tandem mill can not be too small, if be less than 120mm, exists for 4mm left and right thicknesses routine supplied materials
The problem of serious skidding can occur during rolling, therefore minor diameter work roll diameter can be designed as 120~Φ of Φ 150mm.
Embodiment 6：
On the basis of embodiment 5, the diameter of the major diameter top working roll 6 and major diameter bottom working roll 7 is 170~190mm,
The diameter of minor diameter top working roll 15 and minor diameter bottom working roll 16 is 120~150mm.
The beneficial effects of the present invention are, when two groups of working roll roller systems switch, support roller, intermediate calender rolls, middle roll bending and
Driving motor, reduction box, spindle etc. without adjustment, shorten switching time, improve the reliability and production efficiency of equipment.
When major diameter working roll system receives horizontal force, due to the design for having bearing block using working roll, the horizontal force of part can be passed through work
It is delivered in frame as roll bearing seat, largely solves side roller to moving the branch for causing on the strong point of major diameter working roll
Support instability problem.For major diameter working roll roller system, the compensating cylinder designed on bottom working roll bearing block is simultaneous to top working roll
There is the function of roller, balance, roll change, simple structure is highly reliable.Eighteen-high mill of the invention can be in original 18 rolling
On the basis of machine, only increase a set of major diameter working roll system, in the case that cost increases very little, widen the scope of product：Using small
The thin slab products such as diameter work roller, article of manufacture material；Using major diameter working roll, the production welded tube material of economical and efficient etc. is conventional
The product of thickness, improves the competitiveness of manufacturer.
It is exemplified as above be only to of the invention for example, do not constitute the limitation to protection scope of the present invention, it is all
It is that design same or analogous with the present invention is belonged within protection scope of the present invention.The portion that the present embodiment is not described in detail
Part and structure belong to the well-known components and common structure or conventional means of the industry, do not describe one by one here.
Claims (7)
1. a kind of eighteen-high mill interchangeable for the working roll roller system of cold continuous rolling, including frame（1）, motor（13）, reduction box
（12）With two universal-joint spindles（11）, the motor（13）Output shaft be connected to reduction box（12）Input shaft, reduction box
（12）Output shaft be connected to two universal-joint spindles（11）, two universal-joint spindles（11）Respectively connected intermediate calender rolls（3）With under
Intermediate calender rolls（8）, upper intermediate calender rolls（3）Surface be top backing up roll（2）, lower intermediate calender rolls（8）Underface be lower support roll（9）,
The top backing up roll（2）Two ends top backing up roll bearing block is installed（2.1）, top backing up roll（2）By top backing up roll bearing block
（2.1）In frame（1）Interior slip, lower support roll（9）Two ends lower support roll bearing block is installed（9.1）, lower support roll（9）It is logical
Cross lower support roll bearing block（9.1）In frame（1）Interior slip, the upper intermediate calender rolls（3）Two ends middle roller bearing is installed
Seat（3.1）, lower intermediate calender rolls（8）Two ends lower middle roll bearing seat is installed（8.1）, middle roll bearing seat on each（3.1）
With lower middle roll bearing seat（8.1）On be designed with intermediate calender rolls bending cylinder block（4）, intermediate calender rolls bending cylinder block（4）Installed in frame（1）
On, side roller（5）By swing arm（5.1）Frame is fixed in hinged way（1）On, it is characterised in that：The upper intermediate calender rolls（3）With
Lower intermediate calender rolls（8）Between major diameter working roll system or minor diameter working roll system are installed.
2. the interchangeable eighteen-high mill of the working roll roller system of cold continuous rolling is used for as claimed in claim 1, it is characterised in that：It is described
Major diameter working roll system includes major diameter top working roll（6）With major diameter bottom working roll（7）, major diameter top working roll（6）Two
End is respectively equipped with a major diameter top working roll bearing block（6.1）, major diameter bottom working roll（7）Be respectively arranged at two ends with one it is big
Diameter bottom working roll bearing block（7.1）, major diameter top working roll bearing block opposing upper and lower（6.1）With major diameter bottom working roll axle
Bearing（7.1）Between be provided with compensating cylinder（14）, compensating cylinder（14）Installed in major diameter bottom working roll bearing block（7.1）On.
3. the interchangeable eighteen-high mill of the working roll roller system of cold continuous rolling is used for as claimed in claim 1, it is characterised in that：It is described
Minor diameter working roll system includes minor diameter top working roll（15）With minor diameter bottom working roll（16）, in frame（1）Upper correspondence is small straight
Footpath top working roll（15）Place, is installed with minor diameter top working roll lifting device（10）.
4. the interchangeable eighteen-high mill of the working roll roller system of cold continuous rolling is used for as claimed in claim 2, it is characterised in that：It is described
Major diameter top working roll（6）With major diameter bottom working roll（7）Diameter be 170~190mm.
5. the interchangeable eighteen-high mill of the working roll roller system of cold continuous rolling is used for as claimed in claim 3, it is characterised in that：It is described
Minor diameter top working roll（15）With minor diameter bottom working roll（16）Diameter be 120~150mm.
6. working roll replacing options of a kind of eighteen-high mill for cold continuous rolling, it is characterised in that comprise the following steps：
Step one：It is sequentially connected motor（13）, reduction box（12）, two pieces universal-joint spindles（11）And frame（1）, make upper and lower two ten thousand
To spindle（11）Respectively with upper intermediate calender rolls（3）With lower intermediate calender rolls（8）Connection, then in upper intermediate calender rolls（3）Surface install
Backing roll（2）, lower intermediate calender rolls（8）Underface install lower support roll（9）, and in top backing up roll（2）Two ends install supporting
Roll bearing seat（2.1）, in lower support roll（9）Two ends install lower support roll bearing block（9.1）, in upper intermediate calender rolls（3）Two ends
Install middle roll bearing seat（3.1）, in lower intermediate calender rolls（8）Two ends roll bearing seat in the middle of lower is installed（8.1）, in frame（1）
4 intermediate calender rolls bending cylinder blocks of upper installation（4）, make roll bearing seat in the middle of on each（3.1）With each lower middle roll bearing seat
（8.1）On be all stuck in intermediate calender rolls bending cylinder block（4）It is interior；
Step 2：During to the high value added product for producing 0.3~0.45mm thickness, minor diameter working roll system is installed, will be small straight
Footpath top working roll（15）With minor diameter bottom working roll（16）Installed in frame（1）On working roll position at, and on minor diameter
Working roll（15）With upper intermediate calender rolls（3）, minor diameter bottom working roll（16）With lower intermediate calender rolls（8）Between location arrangements side roller（5）,
Side roller（5）By swing arm（5.1）Frame is fixed in hinged way（1）On, then in frame（1）Worked on upper installation minor diameter
Roller lifting device（10）, for lifting minor diameter top working roll（15）；
Step 3：To during low value-added cold-rolled products, install major diameter working roll system in production 0.58~0.72mm thickness,
Remove minor diameter top working roll（15）, minor diameter bottom working roll（16）With minor diameter top working roll lifting device（10）, will be straight greatly
Footpath top working roll（6）With major diameter bottom working roll（7）Installed in frame（1）On working roll position at, and the work in major diameter
Make roller（6）Two ends be respectively mounted a major diameter top working roll bearing block（6.1）, in major diameter bottom working roll（7）Two ends
It is respectively mounted a major diameter bottom working roll bearing block（7.1）, in major diameter bottom working roll bearing block（7.1）Upper installation compensating cylinder
（14）, make compensating cylinder（14）Positioned at major diameter top working roll bearing block opposing upper and lower（6.1）With major diameter bottom working roll bearing
Seat（7.1）Between；
Step 4：According to the requirement of production cold-rolled products, selection step 2 or step 3 change working roll.
7. working roll replacing options of a kind of eighteen-high mill for cold continuous rolling as claimed in claim 6, it is characterised in that
The major diameter top working roll（6）With major diameter bottom working roll（7）Diameter be 170~190mm, minor diameter top working roll（15）
With minor diameter bottom working roll（16）Diameter be 120~150mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611045257.4A CN106734221B (en) | 2016-11-24 | 2016-11-24 | A kind of eighteen-high mill interchangeable for the working roll roller system of cold continuous rolling |
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| CN201611045257.4A CN106734221B (en) | 2016-11-24 | 2016-11-24 | A kind of eighteen-high mill interchangeable for the working roll roller system of cold continuous rolling |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107790495A (en) * | 2017-11-28 | 2018-03-13 | 中冶南方工程技术有限公司 | A kind of metal strip rolling mill of the collateral runner of band |
| CN109013705A (en) * | 2018-09-12 | 2018-12-18 | 中国重型机械研究院股份公司 | A kind of small roller diameter roll set in 6-H strip mill of excellent steel |
| CN109500091A (en) * | 2018-12-06 | 2019-03-22 | 中冶南方工程技术有限公司 | Eighteen-high mill working roll side bearing mechanism and its application method, eighteen-high mill |
| CN109604339A (en) * | 2018-08-13 | 2019-04-12 | 襄阳博亚精工机器有限公司 | A kind of roller box |
| CN111992584A (en) * | 2020-07-30 | 2020-11-27 | 无锡市红年金属制品科技有限公司 | Cold rolling mill for copper rod processing and roll changing method |
| CN112701984A (en) * | 2020-12-09 | 2021-04-23 | 福州大学 | Suspension control method for open-phase adjacent two-phase rotor of single-winding bearingless flux switching motor |
| CN114570771A (en) * | 2022-02-11 | 2022-06-03 | 郑孝桐 | Multi-roll numerical control cold rolling mill |
| CN114829030A (en) * | 2019-12-20 | 2022-07-29 | Sms集团有限公司 | Method for changing the arrangement of rolls in a roll stand and roll assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107790495A (en) * | 2017-11-28 | 2018-03-13 | 中冶南方工程技术有限公司 | A kind of metal strip rolling mill of the collateral runner of band |
| CN109604339A (en) * | 2018-08-13 | 2019-04-12 | 襄阳博亚精工机器有限公司 | A kind of roller box |
| CN109604339B (en) * | 2018-08-13 | 2023-09-01 | 襄阳博亚精工机器有限公司 | Roller box |
| CN109013705A (en) * | 2018-09-12 | 2018-12-18 | 中国重型机械研究院股份公司 | A kind of small roller diameter roll set in 6-H strip mill of excellent steel |
| CN109013705B (en) * | 2018-09-12 | 2024-04-16 | 中国重型机械研究院股份公司 | High-quality steel small-roller-diameter six-roller mill roller system |
| CN109500091A (en) * | 2018-12-06 | 2019-03-22 | 中冶南方工程技术有限公司 | Eighteen-high mill working roll side bearing mechanism and its application method, eighteen-high mill |
| CN109500091B (en) * | 2018-12-06 | 2024-01-26 | 中冶南方工程技术有限公司 | Side supporting mechanism for working roll of eighteenth roll mill, using method of side supporting mechanism and eighteenth roll mill |
| CN114829030A (en) * | 2019-12-20 | 2022-07-29 | Sms集团有限公司 | Method for changing the arrangement of rolls in a roll stand and roll assembly |
| CN114829030B (en) * | 2019-12-20 | 2024-01-30 | Sms集团有限公司 | Method for changing the roll configuration in a rolling stand and roll assembly |
| CN111992584A (en) * | 2020-07-30 | 2020-11-27 | 无锡市红年金属制品科技有限公司 | Cold rolling mill for copper rod processing and roll changing method |
| CN112701984A (en) * | 2020-12-09 | 2021-04-23 | 福州大学 | Suspension control method for open-phase adjacent two-phase rotor of single-winding bearingless flux switching motor |
| CN114570771A (en) * | 2022-02-11 | 2022-06-03 | 郑孝桐 | Multi-roll numerical control cold rolling mill |
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