CN206689204U - A kind of three roll shape steel roughing mill upper roller spring equalizing devices - Google Patents

Abstract

It the utility model is related to a kind of three roll shape steel roughing mill upper roller spring equalizing devices, totally two groups are located at upper roller both ends respectively, every group of bascule is symmetricly set on the upper roll bearing seat both sides of roll end and connected respectively and covered on milling train, each bascule includes adjustment screw mandrel, rotating nuts, spring, bearing, suspension hook and hook, described adjustment screw mandrel one end connecting shackle, worn successively between the adjustment screw mandrel other end and suspension hook and connect rotating nuts, spring and bearing, the rotating nuts and bearing are located at spring both sides respectively, each bearing is symmetricly set on upper roller both ends and is fixed in outer side of lid on milling train, each suspension hook is located at each bearing bottom and connected with hook, each hook is symmetricly set on roll bearing seat both sides.The apparatus structure simple-to-maintain is convenient, realizes above-below direction lifting action by the effect of milling train hold-down devices while can complete space three-dimensional adjustment with axial direction action before and after the cooperation drive upper roller bearing block realization of milling train mechanism for axial adjusting.

Description

A kind of three roll shape steel roughing mill upper roller spring equalizing devices

Technical field

It the utility model is related to metal machining technical field, more particularly to the rolling field of metal, in particular to one Three roll shape steel roughing mill upper roller spring equalizing devices of kind.

Background technology

There is double steel plate before three roller prestressing force shaped steel roughing mill machines, have lifting platform after machine, increased to adapt to continuous casting material section, Open up and broaden under prolonging on rolling specs, rolling line is using big in the excellent steel of special steel division department of Laiwu branch company of Shandong Iron ＆ Steel Co., Ltd. Drafts design box-shaped grips pass schedule altogether, thirdly roller prestressing force roughing mill was gone into operation in 1996, ageing equipment, rolling at present saves Play unstable.

Three roller prestressing force roughing mills are φ 550mm roughing mills, specifically dismount mode：Check that all assembly parts are accurate Afterwards, lower bearing bracket outside lower roll non-transmision end axial adjusting device bolster and bearing opening degree are adjusted, is lifted into bottom roll, under making A set of cups on the outside of roller is located at bolster and bearing space；Positive import, reverse side outlet crossbeam installation lower bearing bracket positive and negative are lifted respectively In crossbeam groove, adjustment left and right drift height, lift into central roll, central roll axial location fixed by connecting screw on the outside of lower bearing bracket, Estimated with operating experience, the beam head of positive import crossbeam is extruded by the steel plate of different-thickness of manually jumping a queue, is allowed to and central roll Each pass centering, beam head two upper end inclined-plane are fixed with longitudinal press strip, and upper end connection front outlet crossbeam, its beam head leads to The groove that wedge lock bar is fixed in upper spider is crossed, adjustment crossbeam position, is allowed to align with central roll pass inboard；Then lift Upper roller, a set of cups on the outside of upper roller is set to be located in bolster and bearing space, then hoisting rolling mill upper spider, screw big column upper end hydraulic pressure Nut, after suppressing install roll driving end under, in, upper roller transmission universal-joint spindle.

1 and accompanying drawing 2, existing upper roller bascule use elastic gel referring to the drawings, and elastic colloid balance device profile is Cylinder, and there is a piston rod for playing transmission to stretch out, there will be compressible a certain amount of elastic cement to load cylinder In closed container in body cavity.When elastic colloid balance device is installed, a pad is padded in milling train upper bearing (metal) bore, is used below Gland is pushed down, and to prevent bascule because deadweight skids off, when housing screw is depressed, bascule is compressed, by rolling requirements It is transferred to required roll gap；When bascule whole stroke is covered, milling train is in minimum roll neck and can pressed；When depressing force is removed Except when bascule rely on the pressure of internal clay, moment entirely jacks up top working roll system, employs elastic colloid balance dress Postpone, avoid oil leakage of hydraulic system and safeguard the problem of complicated, but during the use of elastic colloid balance device, exist The problem of following aspect：

1st, during roll is changed, the installation of roller is inconvenient.Because piston rod can not be easily when using elastic gel The opposite force of elastic colloid is have to be larger than by compression, so when roll loads, if after size is according to Theoretical Design, sometimes The situation that the device that is depressed blocks occurs, has to compel using larger external force (such as using jack) during roll change Elastic gel is compressed, after being welded and fixed good position, is pushed into milling train.Although this method can solve installation question, deposit In very big insecurity, while welding requirements is higher, and roll changing time lengthens, and pass is just expected shape size adjusting difficulty, to changing Roller adds difficulty, causes to roll waste product.

2nd, after a long time in use, easily there is jam phenomenon during dismounting in bascule.So-called jam Phenomenon：Elastic gel is close to roll end, by inboard in upper roll bearing seat, after long period use, into cooling water or Iron scale can not be ejected, and sewage is entered in bearing saddle bore by positions such as bolt hole, cylinder bodies, and high temperature, hot rolling environment compare evil Bad, sealing gland produces corrosion between cylinder body and bearing block, and to a certain extent, elastic force is not more than resistance, will go out for corrosion The jam of existing elastomer, material shape size can not be adjusted, the upper hanging unstability of roll bearing seat, frequent impact, rolling mill bearing is reduced and uses Life-span.

The 3rd, the bearing block interior installing hole requirement on machining accuracy of elastic gel is installed high, if step or centre hole, axle be present The perpendicularity of bearing lumen pore bottom surface and axis is more than 0.05mm, and damping balance device tilts stress, and adjust pad stress deformation causes Piston rods bend or adjust pad depression cause elastic gel insufficient height, it is necessary to are welded with and connect or gas in elastic gel end face outside Cut pad, elastic colloid when temperature is higher than 250 DEG C, huge energy will be produced with the rise of temperature inside it, Piston rod is ejected, if operator's erect-position is improper, it is possible to create personal injury.

4th, for the bascule with roll chock lumen pore with gap cooperation is combined into, bascule should be able in bearing saddle bore Freely rotate, sliding friction is produced during use, installation maintenance requirement is extremely strict.It is during installation that damping balance device and lumen pore is clear It wash clean, coating lubricating oil, must be handled with care in installing and using, avoid surface especially piston rod outer surface from scratching, avoid Failure of apparatus.

5th, the fit clearance of gland hole and damping balance device is not less than 0.5mm, and flood is crossed in gap and iron scale intrusion is rotten Erosion；The too small assembling in gap is difficult, and the outer surface of bascule forbids any type of machining, avoids gravitational thrusts and use Oxyacetylene metal-cutting operation.

Existing upper roller Elastic Damping Balance Fitting is present：Stability is poor, maintenance is inconvenient, labor intensity is big, service life The problem of low, costly and potential safety hazard is more.Milling train upper roller balance also has spring balancing and the hydro-cushion mode of using, but all only Adjustment can be balanced to upper roller from single direction.

Utility model content

In order to solve the above-mentioned technical problem the utility model provides a kind of three roll shape steel roughing mill upper rollers and filled with spring balancing Put and be achieved through the following technical solutions：A kind of three roll shape steel roughing mill upper roller spring equalizing devices are located at for two groups totally respectively Upper roller both ends, every group of bascule are symmetricly set on the upper roll bearing seat both sides of roll end and connected respectively and covered on milling train, institute Stating each bascule includes adjustment screw mandrel, rotating nuts, spring, bearing, suspension hook and hook, and the connection of described adjustment screw mandrel one end is hung Hook, worn successively between the adjustment screw mandrel other end and suspension hook and connect rotating nuts, spring and bearing, the rotating nuts and bearing It is located at spring both sides respectively, each bearing is symmetricly set on upper roller both ends and is fixed in outer side of lid on milling train, each suspension hook Connected positioned at each bearing bottom and hook, each hook is symmetricly set on roll bearing seat both sides.

Avoided after adopting the above technical scheme, three roll shape steel roughing mill upper rollers are placed on the outside of milling train with spring equalizing device Steel billet heat radiation, cooling water and iron scale enter, and stability is good, and service life is high.Pass through rotating nuts and adjustment silk simultaneously Bar, which can adjust installation settings, realizes the quick adjustment of milling train upper roller.

Preferably, the both ends of the spring is socketed with bowl dress pad, the bowl dress pad is tubular structure and is provided with center Hole, the spring fill pad by bowl and contacted respectively with rotating nuts and bearing.

Steadily contact while can also prevent with rotating nuts and bearing using both ends of the spring can be made after above-mentioned preferred scheme Only dust enters in spring.

As an improvement, the rotating nuts border is provided with through hole.

Rotating nuts are driven to rotate tune using rotating nuts week ring through hole is inserted by turning tool after above-mentioned improvement project Section, turning tool can use stainless steel elbow pole φ 24, front end be hot pressed into elbow shape can bear large curved should Power, adjustment are simple and convenient.

As an improvement, the bearing is platy structure, the platy structure is respectively equipped with irregularly-shaped hole and groove, the abnormity Hole, which is worn, connects adjustment screw mandrel, and the groove can accommodate the arc-shaped end of bowl dress pad.

Further, the irregularly-shaped hole is made up of oblong aperture and elliptical aperture, and the major axis side connection of the elliptical aperture is rectangular The short side side in hole is simultaneously symmetrical along bearing horizontal center line.

The guide effect to adjusting screw mandrel is realized by irregularly-shaped hole using after above-mentioned improvement project, wherein oblong aperture completes water Square to guiding adjust, elliptical aperture complete vertical direction guiding adjustment, the groove be easy to bowl dress pad its accommodate area Domain is oriented to and slided.

As an improvement, the suspension hook is the rectangular slab for being provided with square hole, described rectangular slab one end is provided with to be connected with adjustment screw mandrel Screw rod.

As a further improvement, the hook is provided with the hook formation being connected with suspension hook square hole for rectangular slab and one end.

Quickness and high efficiency is connected or safeguarded with hook using suspension hook can be made after above-mentioned improvement project.

Compared with prior art, the utility model beneficial effect can be learnt according to the narration to such scheme：The device has There is the advantages of simple in construction, working service is convenient, safe and reliable, realize that above-below direction lifting is dynamic by the effect of milling train hold-down devices Make axial direction action before and after can coordinating the bearing block realization of drive upper roller with milling train mechanism for axial adjusting simultaneously and complete space three Tie up multidirectional adjustment, can fast assembling-disassembling in milling train upper roller realize with roll dismounting with exchange function.

Brief description of the drawings

The utility model is further described below in conjunction with the accompanying drawings.

Accompanying drawing 1 is the former three existing upper roller elastic gel structural front views of roll shape steel roughing mill.

Accompanying drawing 2 is the existing upper roller elastic gel structure left view of former three roll shape steel roughing mills.

Accompanying drawing 3 is the signal installation site front view of the utility model upper roller bascule.

Accompanying drawing 4 is the signal installation site left view of the utility model upper roller bascule.

Accompanying drawing 5 is the utility model upper roller bascule front view.

Accompanying drawing 6 is the utility model upper roller bascule left view.

Accompanying drawing 7 is that the utility model adjusts screw mandrel front view.

Accompanying drawing 8 is the utility model rotating nuts structural representation.

Accompanying drawing 9 is that the utility model bowl fills gasket construction schematic diagram.

Accompanying drawing 10 is the top view of the utility model bearing.

Accompanying drawing 11 is the utility model bearing A-A sectional views.

Accompanying drawing 12 is the front view of the utility model suspension hook.

Accompanying drawing 13 is the front view of the utility model hook.

Shown in figure：

1st, covered on milling train, 2, upper roller bascule, 2.1, adjustment screw mandrel, 2.2, rotating nuts, 2.3, bowl dress pad, 2.4, Spring, 2.5, bearing, 2.6, suspension hook, 2.7, hook, 3, rolling mill screwdown device, 4, upper roller, 4.1, upper roll bearing seat, 4.2, upper roller Elastic gel, 5, central roll, 5.1, middle roll bearing block, 5.2, central roll parallels, 6, lower roll, 6.1, bottom roll bearing block, 7, rolling mill base.

Embodiment

For the technical characterstic for illustrating this programme can be understood, this programme is explained with embodiment below in conjunction with the accompanying drawings State.

Referring to the drawings 1-12, a kind of three roll shape steel roughing mill upper roller spring equalizing device embodiments：Existing three Roll shape steel roughing mill includes lid 1 and rolling mill base 7 on milling train, and upper roller is respectively equipped between lid 1 and rolling mill base 7 on the milling train 4th, central roll 5 and lower roll 6, the upper roller 4, central roll 5 and 6 each end of lower roll have simultaneously been connected respectively bearing block, on the milling train It is provided between lid 1 and upper roller 4 and completes above-below direction lifting action rolling mill screwdown device 3, is provided between the upper roller 4 and central roll 5 Central roll parallels 5.2, the central roll parallels 5.2 are located at 5.1 middle both sides of middle roll bearing block, and outside is high in the central roll parallels 5.2 Spend and be located at the both ends of upper roller 4 respectively for totally two groups for respectively 60mm rectangular block, the bascule, every group of bascule is symmetrical arranged Lid 1 on milling train is connected in the both sides of upper roll bearing seat 4.1 of the end of upper roller 4 and respectively, each bascule includes adjustment screw mandrel 2.1st, rotating nuts 2.2, spring 2.4, bearing 2.5, suspension hook 2.6 and hook 2.7, the adjustment one end connecting shackle of screw mandrel 2.1 2.6, worn successively between the adjustment other end of screw mandrel 2.1 and suspension hook 2.6 and meet rotating nuts 2.2, spring 2.4 and bearing 2.5, institute State rotating nuts 2.2 and bearing 2.5 and be located at the both sides of spring 2.4 respectively, the adjustment screw mandrel 2.1 connects the one end of rotating nuts 2.2 Provided with external screw thread, the one end of 2.1 connecting shackle of the adjustment screw mandrel 2.6 is referred to shown in accompanying drawing 7 provided with screwed hole, each bearing 2.5 are symmetricly set on upper roller both ends and are fixed on milling train on the outside of lid 1, and each suspension hook 2.6 is located at each bottom of bearing 2.5 It is connected with hook 2.7, each hook 2.7 is symmetricly set on the both sides of roll bearing seat 4.1, the preferred spiral bullet of spring 2.4 Spring diameter phi 16mm, in spring, outer, internal diameter be φ 120mm, φ 140mm, φ 100mm, number of total coils 10.5 encloses, number of active coils 8.5 Circle, rotation direction：Dextrorotation, spring material diameter 16mm, spring pitch 50mm, free height 400mm, compression travel 150mm.

As shown in figure 9, the both ends of spring 2.4 are socketed with bowl dress pad 2.3, the bowl dress pad 2.3 is tubular structure And centre bore is provided with, the spring 2.4 fills pad 2.3 by bowl and contacted respectively with rotating nuts 2.2 and bearing 2.5.

The center of rotating nuts 2.2 is provided with the screwed hole being connected with adjustment screw mandrel 2.1, the border of rotating nuts 2.2 It is provided with the through hole connected with screwed hole.Inserting 2.2 weeks ring through hole of rotating nuts by turning tool drives rotating nuts 2.2 to rotate Regulation, turning tool can use the elbow pole φ 24 of stainless steel, and front end, which is hot pressed into elbow shape, can bear large curved Stress, adjustment are simple and convenient.

As shown in Figure 10, Figure 11, the bearing 2.5 is platy structure, and the platy structure is respectively equipped with irregularly-shaped hole and recessed Groove, the irregularly-shaped hole, which is worn, connects adjustment screw mandrel 2.1, and the groove can accommodate the arc-shaped end of bowl dress pad 2.3.

The irregularly-shaped hole is made up of oblong aperture and elliptical aperture, the short side one of the major axis side connection oblong aperture of the elliptical aperture Side is simultaneously symmetrical along the horizontal center line of bearing 2.5.Guide effect to adjusting screw mandrel, the axially adjustable machine of milling train are realized by irregularly-shaped hole Structure cooperation drives upper roller bearing block to realize that the guiding of the axial direction action completion horizontal direction before and after oblong aperture adjusts, under milling train Above-below direction lifting action is realized in the guiding corrective action that pressure device completes vertical direction in elliptical aperture, and the groove is easy to bowl to fill Pad is oriented to and slided in its housing region.

As shown in figure 12, the suspension hook 2.6 is the rectangular slab for being provided with square hole, and described rectangular slab one end is provided with adjusting screw mandrel The screw rod of 2.1 connections.

As shown in figure 13, the hook 2.7 is rectangular slab and one end is provided with the hook formation being connected with the square hole of suspension hook 2.6. 2.7 appearance and size preferable width 40mm, length 180mm of the hook, upper end distance between bearing seat section 30mm is linked up with, leans out bearing block Width is 70mm, and the lower end of bearing 2.5 is consistent with 2.7 inner groovies of hook away from 2.7 height 210mm of hook, center.

Certainly, described above is also not limited to the example above, and technical characteristic of the utility model without description can lead to Cross or realized using prior art, be will not be repeated here；Above example and accompanying drawing are merely to illustrate technology of the present utility model Scheme is not that limitation of the present utility model, Tathagata are substituted, and the utility model enters only in conjunction with and with reference to preferred embodiment Go detailed description, it will be understood by those within the art that, those skilled in the art are new in this practicality The variations, modifications, additions or substitutions made in the essential scope of type should also belong to this without departure from objective of the present utility model The claims of utility model.

Claims (7)

1. a kind of three roll shape steel roughing mill upper roller spring equalizing devices, totally two groups are located at upper roller respectively（4）Both ends, every group of balance Device is symmetricly set on upper roller（4）The upper roll bearing seat of end（4.1）Both sides are simultaneously covered on connection milling train respectively（1）, its feature exists In：Each bascule includes adjustment screw mandrel（2.1）, rotating nuts（2.2）, spring（2.4）, bearing（2.5）, suspension hook （2.6）And hook（2.7）, the adjustment screw mandrel（2.1）One end connecting shackle（2.6）, the adjustment screw mandrel（2.1）The other end with Suspension hook（2.6）Between wear connect rotating nuts successively（2.2）, spring（2.4）And bearing（2.5）, each bearing（2.5）Symmetrically set Put and covered at upper roller both ends and being fixed on milling train（1）Outside, each suspension hook（2.6）Positioned at each bearing（2.5）Bottom with Hook（2.7）Connection, each hook（2.7）It is symmetricly set on roll bearing seat（4.1）Both sides.

A kind of 2. three roll shapes steel roughing mill upper roller spring equalizing device according to claim 1, it is characterised in that：It is described Spring（2.4）Both ends are socketed with bowl dress pad（2.3）, the bowl dress pad（2.3）For tubular structure and centre bore is provided with, it is described Spring（2.4）Pad is filled by bowl（2.3）Respectively with rotating nuts（2.2）And bearing（2.5）Contact.

A kind of 3. three roll shapes steel roughing mill upper roller spring equalizing device according to claim 1, it is characterised in that：It is described Rotating nuts（2.2）Border is provided with through hole.

A kind of 4. three roll shapes steel roughing mill upper roller spring equalizing device according to claim 1, it is characterised in that：It is described Bearing（2.5）For platy structure, the platy structure is respectively equipped with irregularly-shaped hole and groove, and the irregularly-shaped hole, which is worn, connects adjustment screw mandrel （2.1）, the groove can accommodate bowl dress pad（2.3）Arc-shaped end.

A kind of 5. three roll shapes steel roughing mill upper roller spring equalizing device according to claim 4, it is characterised in that：It is described Irregularly-shaped hole is made up of oblong aperture and elliptical aperture, the short side side of the major axis side of elliptical aperture connection oblong aperture and along bearing （2.5）Central Symmetry.

A kind of 6. three roll shapes steel roughing mill upper roller spring equalizing device according to claim 1, it is characterised in that：It is described Suspension hook（2.6）To be provided with the rectangular slab of square hole, described rectangular slab one end is provided with adjusting screw mandrel（2.1）The screw rod of connection.

A kind of 7. three roll shapes steel roughing mill upper roller spring equalizing device according to claim 1, it is characterised in that：It is described Hook（2.7）For rectangular slab and one end is provided with and suspension hook（2.6）The hook formation of square hole connection.