CN202465185U - Lifting device of frame roller overhauling fixture for rough mill - Google Patents

Abstract

The utility model discloses a lifting device of a frame roller overhauling fixture for a rough mill. The lifting device is characterized by comprising a bottom plate horizontally arranged between two rows of upright posts on a frame in the length direction, wherein two ends of the bottom plate can be clamped in two horizontal guide grooves on the upper part of the frame in a sliding mode, two guide cylinder mechanisms are arranged at the two ends of the bottom plate in the length direction, a lifting table is arranged on the guide cylinder mechanisms, the lifting table is shorter than the hollow position of the frame of a cross travelling trolley, each guide cylinder mechanism comprises a lower sliding cylinder fixed on the bottom plate and an upper sliding cylinder fixed below the lifting table, and the lower sliding cylinder is sleeved with the upper sliding cylinder; a protrusion of which the upper surface is an arc-shaped surface is arranged at each of two ends of the upper part of the lifting table in the length direction; and two jacks are arranged at two ends between the bottom plate and the lifting table in the length direction. The lifting device has the characteristics of convenience in lifting, stability in supporting, simple structure and labor saving during turnover, and can improve the overhauling speed and reduce the labor intensity.

Description

A kind of lifting apparatus of roughing mill breast roll maintenance frock

Technical field

The utility model relates to a kind of roughing mill breast roll, especially a kind of lifting apparatus of roughing mill breast roll maintenance frock.

Background technology

In steel rolling mill, roughing mill is the equipment that is used for continuous casting billet is rolled down to desired intermediate blank thickness.The breast roll of roughing mill is loaded on going into, exporting of roughing mill, each one, is used for supplementary mill work.During work, and work roll table is sent into steel billet in relative rotation together and is rolled between the upper working rolls and lower working rolls roll gap before and after the milling train.Because the breast roll working environment is more abominable, under the environment of the high pressure dephosphorization water of the high temperature about 1100 ℃ and 16MPa, to work for a long time, the erosion of high temperature and steam is prone to cause breast roll, especially the damage of bearing.Simultaneously, during production, breast roll can frequently be clashed in band steel toe portion, makes bearing receive radial impact load, and failure frequency is higher.The drift of fixed frame roller, Yin Gaowen and moisture attacks bolt easy-to-rust are difficult to remove.When removing breast roll, generally be to disassemble together with bearing seat that is fixed on the breast roll both sides and guide and guard mechanism.About 21 tons of the weight of breast roll and bearing seat and guide and guard mechanism, volume is bigger.And breast roll is assemblied between the roughing mill memorial archway, and the site examining and repairing space is narrower, and maximum space for maintenance has only about 680mm.So site examining and repairing is inconvenient, it is long and influence is produced to cause overhauling the off-time.Simultaneously, the irregular contour of guide and guard mechanism also causes the hanging apparatus (referring to guide and guard on the roughing mill) can only be with the breast roll that disassembles together with the guide and guard mechanism a bit of height of slinging, and directly overhaul at the scene of hanging; So can't adopt and change the mode of maintenance more earlier.

In order to solve the problems of the technologies described above; The applicant considers and can design a kind of auxiliary maintenance frock; Adopt a traversing dolly to enter into the breast roll installation position along the roll change rail mechanism; Breast roll is removed the back is pulled out to roughing mill work roll changing orbital position along the roll change rail mechanism with traversing dolly, adopt then overturn after the lifting apparatus lifting after, just can be transported to breast roll memorial archway outside easily and overhaul and change.

In this auxiliary maintenance frock, how to design a kind of lifting apparatus, make its lifting convenient, supporting & stablizing, simple in structure, more laborsaving during upset, to improve maintenance speed, becoming has problem to be solved.

The utility model content

To the deficiency of prior art, the utility model technical matters to be solved is how to provide a kind of lifting convenient; Supporting & stablizing, simple in structure, the lifting apparatus of labour-saving roughing mill breast roll maintenance frock more during upset; Simultaneously, the utility model also provides a kind of roughing mill breast roll maintenance frock that has adopted this lifting apparatus structure, and it has lifting for convenience detach; Improve inspection speed, reduce the characteristics of labour intensity.

In order to solve the problems of the technologies described above, adopted following technical scheme in the utility model:

A kind of lifting apparatus of roughing mill breast roll maintenance frock; It is characterized in that; Said lifting apparatus comprises the base plate that is horizontally set on the vehicle frame position between two row's columns along the length direction, and the base plate two ends are connected in two horizontal guide slots of vehicle frame top slidably, and along the length direction two ends are provided with two guide cylinder mechanisms on the base plate; Guide cylinder mechanism top is provided with bay-lift; Bay-lift length is less than the length of traversing dolly frame hollow position, and said guide cylinder mechanism comprises the following slide cartridge and the last slide cartridge that is fixed on the bay-lift below, following slide cartridge and the mutual socket of last slide cartridge that is fixed on the base plate; The two ends of said bay-lift upper length direction have the projection that upper surface is an arcwall face; The two ends that are positioned at length direction between base plate and the bay-lift also are provided with two jacks.

The lifting apparatus of the utility model adopts one slidably to be connected to the interior base plate of two horizontal guide slots in vehicle frame top as stay bearing plate, can conveniently regulate the lifting apparatus position; Make it over against below the breast roll that shifts out; Guide cylinder can guarantee the stability of lifting, and the upper surface of the projection at bay-lift two ends is an arcwall face, can guarantee fully to contact with the breast roll roll body; Guarantee the breast roll positioning stablity; More laborsaving and stable in the time of the breast roll of the convenient upset of arcwall face simultaneously, rotate to an angle to avoid interference after adopting lifting apparatus with the breast roll lifting, promptly reliably the push-and-pull dolly is pulled out mill housing.So can improve inspection speed greatly.

Description of drawings

Fig. 1 is a kind of structural representation that has adopted the roughing mill breast roll maintenance frock of the utility model.

The specific embodiment

Below in conjunction with accompanying drawing and a kind of roughing mill breast roll maintenance frock of the utility model that adopted the characteristics of the utility model are done further to specify.

Be illustrated in fig. 1 shown below, a kind of roughing mill breast roll maintenance frock that has adopted the utility model comprises

Push-and-pull dolly, said push-and-pull dolly comprise the vehicle frame 1 and the wheel 2 that is positioned at vehicle frame 1 below of cuboid plate shape, wheel 2 and roughing mill work roll changing Orbit Matching;

Roll change hook 3, said roll change hook 3 is for having " U " font of two tip sides, and the tip side of roll change hook 3 is detachably connected on an end end of push-and-pull car frame 1 length direction through bolt;

The roll change rail mechanism; The roll change rail mechanism comprises the two row's columns 4 that are provided with along the frame width direction; Two of every rows, two row's columns are relative along its length, and every root post 4 lower ends have the bonded assembly of being used for boss and can pass boss by bolt makes column be fixed in vehicle frame 1; Column 4 upper ends ahead running frame Width is provided with mounting groove; Have dowel hole on the column of mounting groove one side, the roll change rail mechanism also comprises the track strip 5 that can be installed in the mounting groove of column upper end, and said track strip 5 can lean on locating dowel pin screw-in dowel hole to fix after being installed on mounting groove;

The roller 7 that traversing dolly, traversing dolly comprise into the frame 6 of a hollow structure and an end opening and be positioned at below, frame 6 two ends, said roller 7 can be connected on the track strip 5 on two row's columns with mating and roll;

Lifting apparatus; Said lifting apparatus comprises the base plate 8 that is horizontally set on the vehicle frame position between two row's columns 4 along the length direction; Base plate 8 two ends are connected in two horizontal guide slots 9 of vehicle frame 1 top slidably; Along the length direction two ends are provided with two guide cylinder mechanisms 10 on the base plate 8, and guide cylinder mechanism 10 tops are provided with bay-lift 11, and bay-lift 11 length are less than the length of traversing dolly frame hollow position; Said guide cylinder mechanism 10 comprises the following slide cartridge and the last slide cartridge that is fixed on bay-lift 11 belows, following slide cartridge and the mutual socket of last slide cartridge that is fixed on the base plate 1; The two ends of said bay-lift 11 upper length directions have the projection 12 that upper surface is an arcwall face; The two ends that are positioned at length direction between base plate 8 and the bay-lift 11 also are provided with two jacks 13.

Adopt detachable design between each member of this frock, during maintenance as required the scene carry out assembly and disassembly, may further comprise the steps when specifically overhauling

A, tentatively assemble above-mentioned roughing mill breast roll maintenance frock; With bolt the roll change hook is connected with vehicle frame; The column of roll change rail mechanism is fixed on the vehicle frame upper surface with bolt, track strip is installed in the mounting groove of column upper end, and fixes with locating dowel pin; Lifting apparatus mechanism is packed on the vehicle frame in the horizontal guide slot in the plane, and below bay-lift, install 2 jacks additional at the two ends of length direction;

B, overhaul frock with will the be above-mentioned preliminary stack-mounted of driving again and winch on the roughing mill work roll changing track; After in place; With driving traversing dolly is put to the roll change rail mechanism again; With the roughing mill roll change buggy push-and-pull dolly is pushed into the maintenance position in the roughing mill memorial archway, the roll change rail mechanism overlaps with rolling centerline along the rolling line line of centers;

C, breast roll is unclamped from the roughing mill dismounting together with the bearing seat at two ends and guide and guard mechanism integral body, with guide and guard on the roughing mill with the breast roll integral body one section height of slinging; Other gets track section bar one end and the track strip overlap joint that is fixed on the column; Other end clamping is gone in the inboard surface groove of roughing mill memorial archway; Under manual work is pushed into breast roll integral body with traversing dolly along track strip,, be placed on the traversing dolly the whole decline of breast roll; On traversing dolly, traversing dolly and breast roll integral body are pulled to push-and-pull car frame top with steel wire loop with driving;

The position of d, the traversing dolly of adjustment and bay-lift; Bay-lift is positioned under the breast roll integral body, with jack the bay-lift level is raise, the arcwall face of the projection at two ends, bay-lift top contacts with the breast roll roller; Until bay-lift breast roll integral body is held up; Artificial traversing dolly is pushed into the installation position of breast roll, with the track strip on the column with lean on two root posts of breast roll one side to remove, avoids when the whole upset of breast roll, interfering;

E, continuation raise the bay-lift level; When breast roll is risen overally; Manual work drags breast roll integral body along the horizontal guide slot parallel motion; Two side shaft holders that overturn simultaneously, until the width of the horizontal direction of breast roll whole (containing guide and guard) less than the minimum size of roughing mill memorial archway window with after avoiding interfering; Be that available roll change buggy is pulled out mill housing with the push-and-pull dolly this moment, overhauls and change.

This frock is applicant's autonomous Design; Make full use of the function of online equipment (such as equipment such as roughing mill work roll changing track, driving, roughing mill roll change buggy, jacks) during its maintenance; Be aided with correct operating methods; Can be quickly and easily with breast roll together with the bearing seat at two ends and guide and guard mechanism integral body from disassembled for transport on the roughing mill to outside clearing, change again and overhaul, only need contrary operation can realize easily changing during replacing.Like this, realized first replacing, maintenance is again examined mechanism in good repair and can be used for the next use of changing, and has reduced the maintenance off-time greatly, can the periodic replacement of realization equipment overhaul simultaneously, has guaranteed the stability of producing.

This roughing mill breast roll maintenance frock adopts detachable connection between each mechanism, can adapt to the narrow defective of site space like this, carries out assembly and disassembly as required at the scene, bumps and interferes avoiding, and guarantees safety.In the frock, design-calculated push-and-pull dolly is as the basis of carrying and carrying breast roll, and push-and-pull dolly below wheel and roughing mill work roll changing Orbit Matching can make full use of existing roughing mill work roll changing track as delivery track, the convenient conveying.In the frock, design-calculated roll change rail mechanism adopts detachable ways of connecting; Can in use track strip be snapped into below, breast roll installation position, framework goes out the track that breast roll moves;, can earlier the part column be dismantled breast roll when shifting out the back upset simultaneously; Avoid interfering, guarantee carrying out smoothly of conveying, also possess characteristic of simple structure simultaneously.In the frock, the traversing dolly of design-calculated adopts the framed structure of a hollow and an end opening to form little vehicle main body; Promptly guaranteed whole Joint strenght; Alleviated overall weight again, can also avoid interfering with lifting apparatus simultaneously, the assurance whole transportation process is carried out smoothly; Also possess in addition simple in structure, the characteristics that implementation cost is cheap.In the frock, the lifting apparatus of employing adopts one slidably to be connected to the interior base plate of two horizontal guide slots in vehicle frame top as stay bearing plate; Can conveniently regulate the lifting apparatus position, make it over against below the breast roll that shifts out, guide cylinder can guarantee the stability of lifting; The upper surface of the projection at bay-lift two ends is an arcwall face; Can guarantee fully to contact, guarantee the breast roll positioning stablity with the breast roll roll body, more laborsaving and stable in the time of the breast roll of the convenient upset of arcwall face simultaneously; Rotate to an angle after adopting lifting apparatus with the breast roll lifting to avoid interference, promptly reliable push-and-pull dolly is pulled out mill housing.

In sum, this frock has realized the dismounting lifting of roughing mill breast roll, and makes that the dismounting hoisting process is convenient and swift, and the breast roll dismounting is transported to outside maintenance, promptly improves inspection speed, reduces labour intensity; Realized simultaneously changing again earlier and repaiied, can guarantee the normal operation of equipment.So it is continuous, efficient that this frock can guarantee that hot rolling is produced, stable, direct motion; Guaranteed the efficient of maintenance, high-quality in order, reduce the breast roll on-bne repair time.

Claims (1)

1. a roughing mill breast roll overhauls the lifting apparatus of frock; It is characterized in that; Said lifting apparatus comprises the base plate that is horizontally set on the vehicle frame position between two row's columns along the length direction, and the base plate two ends are connected in two horizontal guide slots of vehicle frame top slidably, and along the length direction two ends are provided with two guide cylinder mechanisms on the base plate; Guide cylinder mechanism top is provided with bay-lift; Bay-lift length is less than the length of traversing dolly frame hollow position, and said guide cylinder mechanism comprises the following slide cartridge and the last slide cartridge that is fixed on the bay-lift below, following slide cartridge and the mutual socket of last slide cartridge that is fixed on the base plate; The two ends of said bay-lift upper length direction have the projection that upper surface is an arcwall face; The two ends that are positioned at length direction between base plate and the bay-lift also are provided with two jacks.

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