CN207308582U - The totally-enclosed stirrup frame of horizontal roll change for hot rolled seamless steel tube production - Google Patents
The totally-enclosed stirrup frame of horizontal roll change for hot rolled seamless steel tube production Download PDFInfo
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- CN207308582U CN207308582U CN201720603633.0U CN201720603633U CN207308582U CN 207308582 U CN207308582 U CN 207308582U CN 201720603633 U CN201720603633 U CN 201720603633U CN 207308582 U CN207308582 U CN 207308582U
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Abstract
It the utility model is related to the totally-enclosed stirrup frame of horizontal roll change for hot rolled seamless steel tube production, including two-roller skew-rolling machine host or two-roller skew-rolling the perforation machine host of perforation machine host or two-roller skew-rolling with guide plate with godet, high axis roll assembly (23) is installed in rack (24), low axis roll assembly (28), upper godet (25), upper godet frame (26), lower godet (33), lower godet frame, it is characterized in that：The rack (24) is to use to be integrally cast, its facade projection is " returning " font, floor projection is the tabular main force support structure (5 of hollow " Asia " font, 11) totally-enclosed closed-in construction is formed, the high axis roll assembly (23), low axis roll assembly (28) is separately mounted to high axis roll trolley (22), on low axis roll trolley (29), and it is installed in the rack (24), the high axis roll assembly (23) and the replacement of low axis roll assembly (28), it is to remove or move into a horizontal manner the rack (24).
Description
Technical field
The present utility model is to belong to metal-pressed machine (steel rolling) technical field.
In being produced to hot rolled seamless steel tube, the piercing mill housing of the roll piercing carried out after solid heating steel billet (such as：Pass
System Mannesmann piercing machine, the cone type piercer with roll off angle), and (hair is defined as to the hollow blank after punch out
Pipe), it is processed further rolling, to realize the roll-type skew rolling mill rack (example of thickness of steel pipe precision and surface quality as the main purpose
Such as：Two-roller skew-rolling Diescher milling trains, Accu Roll and two rollers tiltedly rotate expander milling train etc.) carry out brand new design.
Belong to hot rolled seamless steel tube production field.
Background technology
In hot rolling seamless steel pipe production process, must all there are two big host computer systems on production line：Punch and milling train.
Solid pipe billet is mainly heated to certain temperature by punch, and thermal deformation drilling/rolling is into certain thickness (wall thickness)
Hollow bloom --- hollow billet.And pipe is completed primary deformable amount (big lengthening coefficient) on the machine, to reach the metal of anticipation
Tissue.In perforation means, it is more to use dual roll type roll piercing.I.e.：Using two punch rollers, and two in the form of annular discs
Active godet (or resting guide) forms pass.Two rolls are in the horizontal or vertical directions in the tilting of angle arrangement that intersect
Formula is arranged, and the arrangement of two godets (or guide plate) and punch roller is in vertical state.
Milling train is mainly that the wall thickness for completing product further extends rolling, and the hollow billet that punch is provided is rolled into design wall
Thick product --- hollow forging.And this wall thickness rolling and the control of wall thickness quality, it is the mandrel surface by being previously inserted in hollow billet
There is " pass " of certain size spacing with roller surface composition to realize.In Cross-rolling elongation milling train, 2-roller skew-rolling mill is normal
Type according to circumstances.Two rolls are in the horizontal or vertical directions in the inclined type arrangement for the angle arrangement that intersects, two active godets
With the arrangement of rolling mill roll in vertical state.In Mannesmann piercing mill and skew rolling mill, two ways is had according to roll arrangement：
Two rolls are horizontally disposed referred to as horizontally disposed parallel to ground, and what roll was arranged up and down is then known as vertical.Once roll
Arrangement determines, godet (or guide plate) also corresponding arrangement in up and down or horizontal lateral mode.
Both types, since all there is two sets of mill roll mechanisms and Liang Ge godets mechanism.To realize roll and godet
Replace, in rack construction, existing type is all to employ the U-shaped main engine bed of section and a cover is combined into one and is rolling
The work housing of stress in system.In the arrangement of U-shaped main engine bed, the two difference lies in the height and width of U-shaped section are different,
The height dimension many bigger than width of vertical U-shaped section, and the width dimensions many bigger than height of horizontal U-shaped section.Roll
Roller and godet are most in the structure of U-shaped main engine bed, and rack is collectively formed with cover structure.
This conventional operation rack construction, in roll change, it is necessary to which cover is removed, makes the roll or godet dew needed to change
Go out, replacement operation could be carried out.Crane hanging component mode is used in the replacement of its roll, directly hangs out or hang in machine from engine base
Installed in seat.
In rolling, roll acts power to rolled hollow billet or pipe --- roll-force.This roll-force is by roll knot
Structure and its screw-down are delivered on the work housing with U-shaped stand structure.
Required with Mannesmann piercing mill after perforating quality of hollow billet requirement, in Cross-rolling elongation milling train, its product shut out
The requirement of (--- hollow forging) wall thickness dimension is controlled in a certain range (wall thickness accuracy), its hollow forging surfaces externally and internally is smooth.
Reach the perfect condition of above-mentioned requirements, in rolling under stress, the real work position of roll and plug
Holding is intended in the whole operation of rolling to be rigidly fixed on design position.Especially skew rolling mill, the final wall of steel pipe
Thick precision and outer surface quality depend entirely on the stable state of this deformation technique.The principal element of influence of rolled stable state
Be that milling train is rigid in itself and various cooperations between gap, adjustment system disappear gap locking etc..By physical limit, when rolling, deforms work
There is certain larger difference between the real work position of tool and predeterminated position.But this difference is the smaller the better.Difference is smaller,
Its product quality is higher.Primary outer warp tool-roll during rolling, internal modification instrument-plug (or piercing mandrel plug)
Difference change size between real work position and predeterminated position directly reflects as-rolled condition stability.Rolling stability is outside
When can behave as rolling in sight, roll, plug, the bounce of godet, phenomena such as rocking, is mobile, it can be observed visually.
The currently all oblique milling milling train and punch used, is all to use the mainframe Open architecture with U-shaped section.
The essence of this rack mechanical structure is to belong to open top roll housing mode.Under roll-force effect, the open top roll housing of U-shaped section produces
Elastic deformation compared with the closed frame on mechanical structure be big.The rigidity of namely rack is poor.Rolling workpiece during due to oblique milling
It is helically forward travel, under the influence of various factors, the operating position change of two rolls and plug will not be synchronous.Again
Plus the larger elastic deformation amount of open top roll housing, so that the physical location of roll at work is away from rolling centerline,
Making the distance change between roll and plug also larger --- rolling stability is poor.Thus it is embodied under the wall thickness accuracy of milling train hollow forging
Drop, and produce obvious inside spin road in waste pipe internal surface.And the rolling stability of punch is poor, the wall thickness of hollow billet is directly brought
Inequality amount increase.It can aggravate or increase the operating position variable quantity of roll and plug, so as to influence product quality.
Existing skew rolling mill, such as：Two-roller skew-rolling Diescher milling trains, Accu Roll and two rollers tiltedly rotate expander
Milling train.Rack construction shape is all the mainframe Open architecture of this U-shaped section.Due to feature of oblique milling deformation itself and existing work
Skill technology, device structure, have obvious inferior position in the seamless steel pipe quality produced at present compared with axial rolling type (such as tandem mill), main
Showing steel pipe finished product inner surface after deformation has spiral channel, and generally in 0.2mm or so, this just substantially makes spiral channel height difference depth
The about production of the seamless steel tube production and some kinds of the requirement of skew rolling mill production high quality, although oblique milling unit and equal production volume
Axial rolling unit wants low more than 60% compared to investment, but also limits and be further widely popularized and develop.Spiral channel is caused to produce main
One of factor is exactly the milling equipment stability of rigidity and composition each key element of pass in itself.And the mainframe of traditional U-shaped section
Open architecture is improving rigidity, has the obvious technological difficulties for being difficult to overcome in terms of increase composition deformation pass stability factor.
The content of the invention
The present utility model is by using the work housing with closed frame structure, substitutes existing U-shaped section
Main engine bed adds the mode of cover combination composition work housing.And by the design to closed frame, with horizontal mode
The characteristics of removing and moving into, carry out roll replacement.Form a kind of brand-new totally-enclosed frame-type steel tube with cross-rolling machine machine of horizontal roll change
Frame.
In the present utility model, Mannesmann piercing mill rack with and be same structure as the skew rolling mill rack of secondary extension
Type.Punch can use dual roll type band godet (or guide plate) type, i.e.,：Two roll horizontal symmetricals in frame central line arrange,
And in vertical direction, it is symmetrical with frame central line and is disposed with upper and lower godet or guide plate.
Feature of the present utility model：Rack is totally-enclosed closed-in construction, using an entirety being integrally cast
Structure bears roll-force, and forms the rack construction feature with the closed frame stress in mechanical structure.See Fig. 1-
Fig. 3.In totally-enclosed stirrup frame, roll assembly is carried by trolley, and is removed along the horizontal plane in rolling direction, moved into machine
Frame, roll assembly is replaced to realize.See Figure 14-Figure 16.
The totally-enclosed stirrup frame of horizontal roll change produced for hot rolled seamless steel tube, on frame central line horizontal plane, its
The floor projection of main force support structure is hollow " Asia " font (Fig. 2, Fig. 6-Fig. 8), on frame central line vertical plane, its facade
Hollow " returning " font (Fig. 1) is projected as, its height dimension is less than width dimensions.Rack bears the face of roll-force in rack or so
(" going back to " interior " mouth " left and right sides of font facade, the upper and lower two horizontal places of horizontal plane " Asia " font), be left and right horizontal symmetrically by
Power.On the rack face that this bears roll-force, pass through the mechanism for opening circular hole mode to install needed for roll pressure.What rack was born
Roll-force, (" is returned " in font, outer " mouth " interior " mouth " institute by rack construction neutral surface in the platy structure of hollow " returning " font
The center section surrounded) (Fig. 4, Fig. 5) is undertaken, which has at two in rolling horizontal direction.And horizontal throwing is obtained on the top
Shadow for outside in inequilateral octagon, it is interior be in hollow rectangular thick plate-like structure, and arranged beneath floor projection be it is hollow
" ten " font thick plate-like structural strengthening and connection.Thus a totally-enclosed frame-type load-carrying construction is formed.
By roll, roll mandrel, bearing housing, bearing block, form roll assembly (23,28).Loading rack in use, roll
Assembly axis and horizontal plane and vertical plane at an angle, and are placed on roll trolley (22,29).Roll assembly can be
Moved on roll trolley along track reciprocating linear.Roll assembly and roll trolley are formed horizontal for rolled work centre line
The feed angle on roll off angle and vertical plane on face.But roll off angle and feed angle are changeless in rack.Roll assembly
It is divided into high axis roll assembly (23) and low axis roll assembly (28) by the direction of feed angle.Two sets of roll assemblies are individually positioned in respectively
From roll trolley on, be placed in (" returning " left and right sides in interior " mouth " of font facade, water relative to the left and right sides of frame central
At the upper and lower two horizontal inner sides of plane " Asia " font).The rolling groove pressure of roll assembly in the horizontal plane, is to lean on the small storehouse of hydraulic pressure
(21) provide, and the small storehouse of hydraulic pressure is the hydraulic cylinder of specific manufacture.One roll assembly is in the horizontal plane by positioned at roll axis two
The small storehouse of hydraulic pressure at end provides pressure, i.e. a roll assembly is driven by the small storehouse of two hydraulic pressure.The small storehouse of hydraulic pressure is fixedly installed to machine
In the left and right sides of frame, totally four sets of small storehouses of hydraulic pressure.In rolling, the roll-force of generation passes through liquid by roll assembly in hydraulic pressure small storehouse
Small storehouse is pressed to be delivered in rack (24).Rack section (Fig. 5) is closed frame.So as to which in rolling, it is in mechanical structure to make rack
On closed frame state.
For the both sides of the totally-enclosed stirrup frame center line of horizontal roll change of hot rolled seamless steel tube production, it has been installed with
Roll rollback, the roll balance cylinder (20) for the gap that disappears are depressed, bear the small storehouse of hydraulic pressure of roll-force effect and served to roll.It is whole to use
Four sets are installed with altogether in the totally-enclosed stirrup frame of horizontal roll change of hot rolled seamless steel tube production.
In place and release of the roll trolley (22,29) in rack, is by being fixedly mounted positioned at rack outer vent direction
Hydraulic cylinder (roll trolley roll change oil cylinder) (36) is moved to position by claw hook device or releases rack.Roll trolley is in rack
It is inside to be carried in the lift machine by Driven by Hydraulic Cylinder on changing track for roll (31), and can moves back and forth in orbit.Roll is small
Car is reached in rack after design position, and changing track for roll declines in lift machine, make trolley directly fall in rack main force support structure (5,
11) on, " Jiong " shape section body construction natural " riding " below trolley is determined in the corresponding main force support structure of rack and by the structure
The vertical distribution of fixed roller.(roll trolley level disappears gap cylinder the hydraulic cylinder being fixedly mounted on again by level on frame side wall
(37)), drive be assemblied in its piston rod head end inclined wedge insertion roll trolley and frame side wall between gap, make roll trolley with
All gaps between rack in the horizontal direction eliminate.
After the technique adjustment needed for rolling is completed, by hydraulic cylinder (the roll balance cylinder for being fixedly mounted on rack side
(20)), directly have locking effect to roll bearing box in the horizontal direction；Meanwhile by the roll assembly in rack framework
Hydraulic cylinder (roll chock locking cylinder (27)) above bearing block, in vertical direction plays roll assembly directly locking and makees
With.So that other gaps in roll assembly in addition to bearing are eliminated, and the various power effect for making roll be produced in rolling
It should reliably be transferred to totally-enclosed stirrup frame.
When replacing roll, realized by replacing roll assembly.Before roll change, roll chock locking is first unclamped
Cylinder (27)；The small storehouse of hydraulic pressure and roll balance cylinder collective effect are controlled again, and high and low axis roll assembly (23,28) is withdrawn into roll
Roll change position on trolley；Roll trolley level is unclamped to disappear gap cylinder (37)；Rise is fixedly mounted on totally-enclosed stirrup frame side wall
Outer roll trolley track lift cylinders, the track that is installed on it is driven by the roll trolley track lift cylinders, by roll assembly and
Roll trolley raises and exceedes rack level positioning surface；Roll assembly and roll trolley are released into full envelope by roll trolley roll change cylinder
Close stirrup frame (24)；The roll assembly and roll trolley of release continue to be pulled to one can be horizontal perpendicular to hollow billet rolling direction
On mobile roll change mobile platform (35)；Roll assembly on roll change mobile platform and roll trolley are hung away, and it is new to hang in need
The roll assembly and roll trolley changed；Roll assembly and roll trolley are pulled in into totally-enclosed frame machine by roll trolley roll change cylinder
Frame stops to rack level positioning surface；Falling roll trolley track lift cylinders makes roll assembly fall in rack (24), completes one
Roll change process.Roll change mobile platform moves horizontally certain distance at another roll assembly needed to change again；Before repeating
Step completes another roll change process.
The replacement of godet or guide plate in the totally-enclosed stirrup frame of horizontal roll change produced for hot rolled seamless steel tube, with
There is no interference in structure for the replacement of roll.Can unrestricted choice only change roll or godet.Upper godet (25) utilizes its godet axis
Bearing is installed on upper godet frame (26) in a suspended manner, and is positioned on upper godet frame (26), is locked by godet bearing block
The power of godet transmission is locked and born to hydraulic cylinder.Lower godet (33) is directly installed on down using its godet bearing block in sitting posture
In godet frame (34), using two inclined-planes of godet hexagonal shaft bearing, corresponding in lower godet frame V-type face realize positioning and
It is fixed.Upper godet (25) is changed to vertical lifting, and lower godet can be without hindrance by upper godet frame (26), and from upper godet frame
(26) intermediate vertical pass-through mode lifts.
Horizontal roll change totally-enclosed stirrup frame of the present utility model for hot rolled seamless steel tube production, makes roll exist
In work, its stress and the change in location that produces, because of the totally-enclosed tower structure of rack, can make this change in location of roll
Amount is preferably minimized, and so as to keep the thickness of steel pipe value of setting well, improves the stability of the operation of rolling, and then improve
The purpose of tube quality.Meanwhile it is used in the present invention in the totally-enclosed stirrup frame of horizontal roll change of hot rolled seamless steel tube production
Using horizontal roller replacing mode, the replacement of roll can be efficiently solved and maintain the rigidity of rack.
The utility model includes following technical scheme：
1st, a kind of totally-enclosed stirrup frame of horizontal roll change for hot rolled seamless steel tube production, including two-roller skew-rolling machine host
Or perforation machine host or two-roller skew-rolling perforation machine host with guide plate of the two-roller skew-rolling with godet, it is provided with the rack (24)
High axis roll assembly (23), low axis roll assembly (28), upper godet (25), upper godet frame (26), lower godet (33), lower godet
Frame, it is characterized in that：The rack (24) is to use to be integrally cast, its facade projection is " returning " font, floor projection is empty
The totally-enclosed closed-in construction of tabular main force support structure (5,11) composition of " Asia " font of the heart, the high axis roll assembly (23),
Low axis roll assembly (28) is separately mounted to high axis roll trolley (22), on low axis roll trolley (29), and is installed on the machine
In frame (24), the replacement of the high axis roll assembly (23) and low axis roll assembly (28), is to remove or move into a horizontal manner
The rack (24).
2nd, the totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production according to technical solution 1, its
It is characterized in：The high axis roll assembly (23) is installed on high axis roll trolley (22), low axis roll assembly (28) installation
On low axis roll trolley (29), when carrying out the replacement, by the high axis roll assembly (23) and low axis roll assembly
(28) removed along the horizontal plane in rolling direction, move into the rack (24), and successively enter roll change mobile platform (35)
Upper replacement.
3rd, the totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production according to technical solution 1, its
It is characterized in：Roll chock is directly acted on by the compensating cylinder (20) in the rack (24) to roll to eliminate the high axis
Between gap or/and the low axis roll assembly (28) to the rack (24) between roller assembly (23) to the rack (24)
Gap.
4th, the totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production according to technical solution 1, its
It is characterized in：Upper godet (25) suspension type is fixed and positioned on upper godet frame (26), by godet bearing block locked hydraulic cylinder
Carry out locking the upper godet (25) and bear the power of godet transmission.
5th, the totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production according to technical solution 4, its
It is characterized in：
The lower godet (33) is changed to from upper godet frame (26) intermediate vertical pass-through mode and lifts.
Brief description of the drawings
Fig. 1 is the totally-enclosed stirrup frame rolling direction outlet of the horizontal roll change for being used for hot rolled seamless steel tube production of the present invention
Side front view.
Fig. 2 is the totally-enclosed stirrup frame top view of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention.
Fig. 3 is the totally-enclosed stirrup frame J of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention to figure.
Fig. 4 is the totally-enclosed stirrup frame A-A profiles of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention.
Fig. 5 is the totally-enclosed stirrup frame M-M profiles of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention.
Fig. 6 is the totally-enclosed stirrup frame H-H profiles of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention.
Fig. 7 is the totally-enclosed stirrup frame G-G profiles of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention.
Fig. 8 is the totally-enclosed stirrup frame F-F profiles of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention.
Fig. 9 is the totally-enclosed stirrup frame B-B profiles of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention.
Figure 10 is the totally-enclosed stirrup frame C-C profiles of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention.
Figure 11 is the totally-enclosed stirrup frame D-D profiles of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention.
Figure 12 is the totally-enclosed stirrup frame E-E profiles of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention.
Figure 13 is the totally-enclosed stirrup frame K-K profiles of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention.
Figure 14 is milling train/perforation of the totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention
Machine host assembles and horizontal roll change structure, and side front view is exported in rolling direction.
Figure 15 is milling train/perforation of the totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention
Machine host assembles and horizontal roll change structure, removes centering in Guide disc drive mechanism, entrance machine, the N-N of centering etc. is cutd open in outlet machine
Face figure.
Figure 16 is milling train/perforation of the totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention
Machine host assembles and horizontal roll change structure, Q-Q profiles.
Figure 17 is milling train/perforation of the totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention
Machine host assembles and horizontal roll change structure, and in Q-Q profiles, low the axis roll assembly and roll trolley of expression release state.
Figure 18 is milling train/perforation of the totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention
Machine host assembles and horizontal roll change structure, and in Q-Q profiles, high the axis roll assembly and roll trolley of expression release state.
Figure 19 is milling train/perforation of the totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production of the present invention
Machine host assembles and horizontal roll change structure, P-P profiles.
In figure, 1 is is projected as hollow " ten " font panel, and 2 be riser, and 3 be riser, and 4 be plate, and 5 be to be projected as " mouth "
The tabular main force support structure of font, 6 is are projected as hollow " ten " font panel, and 7 be plate, and 8 be riser, and 9 be riser, and 10 are
Section configuration is the entity of the figure of eight, and 11 be the tabular main force support structure for being projected as " mouth " font, and 12 be gusset, and 13 be muscle
Plate, 14 be gusset, and 15 be gusset, and 16 be gusset, and 17 be foundation bolt, and 18 be foundation bolt, and 19 be gusset, and 20 be compensating cylinder,
21 be the small storehouse of hydraulic pressure, and 22 be high axis roll trolley, and 23 be high axis roll assembly, and 24 be rack, and 25 be upper godet, and 26 be upper godet
Frame, 27 be roll chock locking cylinder, and 28 be low axis roll assembly, and 29 be low axis roll trolley, and 30 be Guide disc drive mechanism,
31 be changing track for roll in machine, and 32 be Guide disc drive mechanism, and 33 be lower godet, and 34 be lower godet frame, and 35 be roll change mobile platform,
36 be roll trolley roll change cylinder, and 37 disappear gap cylinder for roll trolley level.
Embodiment
The present invention includes a totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production as load portion
Part.And employ the horizontal replacement structure to roll assembly in the closed frame.
The totally-enclosed stirrup frame of horizontal roll change for hot rolled seamless steel tube production is integral casting steel construction.Rolled by edge
Front and rear the arrange, facade projection in direction processed is " returning " font, the tabular main force support structure that floor projection is hollow " Asia " font
(5), (11) form totally enclosed type frame.At left and right sides of roll line, the entity (10) that section configuration is the figure of eight is disposed with
To accommodate screw-down component and transmit roll-force.To connect and consolidating main force support structure (5), (11), in rack the top cloth
Be equipped with floor projection for outside in inequilateral octagon, it is interior be in hollow rectangular panel (6), be disposed with projection in rack bottom
For hollow " ten " font panel (1).For increase rack rigidity, at left and right sides of roll line, there also is provided riser (2),
(3), (8), (9), facade " go back to " font main force support structure (5), " mouth " the font top installation plate (4) in (11), (7), and two
Upper position arrangement gusset (12), (13), (14), (15), two " times " between the main force support structure (5) of " returning " font and (11)
Lower position arrangement gusset (16) between the main force support structure (5) of font and (11), (19) and foundation bolt (17), (18) plus
By force.It is consequently formed the totally-enclosed type rack of a high rigidity.In rack, the installation knot for adapting to various parts is additionally provided with
Structure.It is " returning " font, floor projection to be hollow that roll-force is transferred to facade projection by the small storehouse of hydraulic pressure (21) in screw-down
The tabular main force support structure (5) of " Asia " font, (11), so as to form enclosed stress.
Horizontal roll change is that another invention of the totally-enclosed stirrup frame of horizontal roll change for being used for hot rolled seamless steel tube production is special
Point.Roll by roll mandrel, bearing housing, bearing block, form roll assembly (23,28), and by oblique roll process requirement, existed with feed angle
In vertical plane, the difference in angle with horizontal plane direction, it is total to be assembled into the low axis roll that feed angle is in below horizontal plane outside online
The high axis roll assembly (23) above horizontal plane is in into (28), and feed angle.High and low axis roll assembly is placed on respectively respectively
From high axis roll trolley (22), and on low axis roll trolley (29).In rolling, roll assembly is fixed on entirely with trolley
Design position in closed frame open frame is (i.e.：It is two straddled in the both sides up and down of " Asia " font in terms of floor projection
Erect and be tightened up at the two horizontal place up and down of " Asia " font；It is under straddling on the inside of interior " mouth " of " returning " font in terms of facade projection
Side is simultaneously tightened up at interior " mouth " inner side left and right of " returning " font).By the small storehouse of hydraulic pressure in compensating cylinder (20) and screw-down
(21) collective effect, makes roll be locked in the horizontal plane.By the main force support structure (5,11) for installed in facade being in " returning " font
Roll chock locking cylinder (27) in inner side " mouth " font upper board (4), (7), is in the primary load bearing knot of " returning " font with facade
Structure (5,11) collective effect, makes roll be locked in vertical plane.In roll change, the first small storehouse of hydraulic pressure in rollback screw-down
(21) to roll change position, then by compensating cylinder (20) high and low axis roll is drawn back into roll change position along the track in roll trolley, unclamped
Roll chock locking cylinder (27), unclamps roll trolley level and disappears and gap cylinder (37) and rise changing track for roll in machine (31), by roll
Roll change mobile platform (35) of the inverse rolling pushing tow roll trolley of trolley roll change cylinder (36) changing track for roll along machine to rack (24) outside
On, complete old roll and remove function.Using artificial lifting mode, old roll assembly and phase are completed on roll change mobile platform (35)
Answer the offline of roll change buggy, and the upper line procedures of new roll assembly and corresponding roll change buggy.Manually combine roll trolley roll change cylinder
(36) head mechanism and the connection of new roll trolley.Changing track for roll along the machine risen by roll trolley roll change cylinder (36) edge, will newly roll
Roller pulls in relevant position in rack with corresponding trolley, falls changing track for roll in machine (31), makes roll trolley together with roll, from
So fall on the main force support structure (5,11) of totally-enclosed type rack (in i.e. 5,11 floor projection, above and below " Asia " font
Two in both sides are perpendicular), locking roll trolley level disappears gap cylinder (37), roll trolley is fixed on design position.Low pressure pressure is rolled
Above roll bearing seat locking cylinder (27) to roll chock, roll turning over, jumping during pressure is prevented.Manually combine compensating cylinder
Pull rod and roll chock, the control small storehouse of hydraulic pressure are advanced to setting roll pass value, and during advance, are controlled at compensating cylinder
In low pressure following state.After pressure in place, high pressure locking roll bearing block locking cylinder (27) and control compensating cylinder are pushed back in height
Tension state, achievees the purpose that the roll that is locked.During roll change, roll change mobile platform (35) has three positions：Low axis is more
Transposition；Roll position；High axis change bit.Roll change mobile platform (35) is first moved to low axis change bit by rolling position, replaces low axis and rolls
Roller assembly (28) and roll trolley (29), translate roll change mobile platform (35) paramount axis change bit along perpendicular to rolling direction, press
Above procedure is completed high axis and is replaced, then moves back roll change mobile platform (35) to rolling position.Complete whole horizontal roll change process.
Replace, leading for the real godet being currently used in the totally-enclosed stirrup frame of horizontal roll change of hot rolled seamless steel tube production
Taken in plate rail and godet structure：Suspension type installation of the upper godet (25) using its godet bearing block on upper godet frame (26)
And positioning, the power of godet transmission is locked and born by godet bearing block locked hydraulic cylinder.Lower godet (33) utilizes its godet
Bearing block is directly installed in lower godet frame (34) in sitting posture, using two inclined-planes of godet hexagonal shaft bearing, with lower godet
Realize positioning and fix in corresponding V-type face in frame.Upper godet (25) is changed to vertical lifting, the middle structure of upper godet frame (26)
And size, lower godet bearing block is all higher than, lower godet without hindrance can pass through upper godet frame (26).Lower godet (33) is changed to
Lifted from upper godet frame (26) intermediate vertical pass-through mode.Guide disc drive mechanism (30) suspension of upper godet (25) is installed on rack
(24) side, the Guide disc drive mechanism (32) of lower godet (33) are installed on the foundation of civil work of rack (24) side, the two is to leading
The transmission of disk is realized by the transmission shaft of Telescopic movable, and when changing godet, transmission shaft retracts and departs from godet.
The present utility model is according to the band godet formula two-roller skew-rolling milling train that a kind of production tube specification is φ 102-273
The most preferred embodiment of (novel steel tube precision skew rolling mill Accu Roll) is illustrated and described.But the band of all specifications
Godet formula two-roller skew-rolling milling train and with godet formula two-roller skew-rolling formula punch, only need to dimensionally be changed, can use this
The identical embodiment of invention, in addition, using the two-roller skew-rolling milling train and punch of guide plate mode, because the present invention is in the structure
The installation site and load-carrying construction of guide plate are incorporated, therefore, the various variation schemes with godet or guide plate punch are all in this hair
In bright protection domain.
Claims (5)
1. a kind of totally-enclosed stirrup frame of horizontal roll change for hot rolled seamless steel tube production, including two-roller skew-rolling machine host or two
Perforation machine host or two-roller skew-rolling perforation machine host with guide plate of the roller oblique milling with godet, is provided with high axis in the rack (24)
Roll assembly (23), low axis roll assembly (28), upper godet (25), upper godet frame (26), lower godet (33), lower godet frame, its
It is characterized in：The rack (24) is to use to be integrally cast, its facade projection is " returning " font, floor projection is hollow
The tabular main force support structure (5,11) of " Asia " font forms totally-enclosed closed-in construction, the high axis roll assembly (23), low axis
Roll assembly (28) is separately mounted to high axis roll trolley (22), on low axis roll trolley (29), and is installed on the rack
(24) in, the replacement of the high axis roll assembly (23) and low axis roll assembly (28), is to remove or move into a horizontal manner institute
State rack (24).
2. the horizontal roll change totally-enclosed stirrup frame according to claim 1 for hot rolled seamless steel tube production, its feature
It is：The high axis roll assembly (23) is installed on high axis roll trolley (22), and the low axis roll assembly (28) is installed on low
On axis roll trolley (29), when being replaced, by the high axis roll assembly (23) and the rolling of low axis roll assembly (28) edge
Removed in horizontal plane on direction, move into the rack (24), and successively entered on roll change mobile platform (35) and replace.
3. the horizontal roll change totally-enclosed stirrup frame according to claim 1 for hot rolled seamless steel tube production, its feature
It is：It is total to eliminate the high axis roll to directly act on roll chock by the compensating cylinder (20) in the rack (24)
The gap between gap or/and the low axis roll assembly (28) to the rack (24) between into (23) to the rack (24).
4. the horizontal roll change totally-enclosed stirrup frame according to claim 1 for hot rolled seamless steel tube production, its feature
It is：Upper godet (25) suspension type is fixed and positioned on upper godet frame (26), is carried out by godet bearing block locked hydraulic cylinder
Lock the upper godet (25) and bear the power of godet transmission.
5. the horizontal roll change totally-enclosed stirrup frame according to claim 4 for hot rolled seamless steel tube production, its feature
It is：The lower godet (33) is changed to from upper godet frame (26) intermediate vertical pass-through mode and lifts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720603633.0U CN207308582U (en) | 2017-05-27 | 2017-05-27 | The totally-enclosed stirrup frame of horizontal roll change for hot rolled seamless steel tube production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720603633.0U CN207308582U (en) | 2017-05-27 | 2017-05-27 | The totally-enclosed stirrup frame of horizontal roll change for hot rolled seamless steel tube production |
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|---|---|
| CN207308582U true CN207308582U (en) | 2018-05-04 |
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| CN201720603633.0U Active CN207308582U (en) | 2017-05-27 | 2017-05-27 | The totally-enclosed stirrup frame of horizontal roll change for hot rolled seamless steel tube production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441554A (en) * | 2021-06-22 | 2021-09-28 | 厦门语璃沫贸易有限公司 | High-precision steel pipe hot rolling equipment |
| CN116984386A (en) * | 2023-09-26 | 2023-11-03 | 太原理工大学 | Method and device for determining force energy parameters in TRB thinning rolling process |
-
2017
- 2017-05-27 CN CN201720603633.0U patent/CN207308582U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441554A (en) * | 2021-06-22 | 2021-09-28 | 厦门语璃沫贸易有限公司 | High-precision steel pipe hot rolling equipment |
| CN116984386A (en) * | 2023-09-26 | 2023-11-03 | 太原理工大学 | Method and device for determining force energy parameters in TRB thinning rolling process |
| CN116984386B (en) * | 2023-09-26 | 2023-12-08 | 太原理工大学 | Method and device for determining force energy parameters in TRB thinning rolling process |
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