CN2399125Y - Easy-to-replace breast roller of thick plate rolling mill - Google Patents

Abstract

The utility model provides an easy-to-replace breast roller of a thick plate rolling mill. Each of both sides of a rolling mill is provided with three breast rollers which are divided into two groups, two rollers near the interior of a roller at one side use a solid housing for fastening a bearing seat of the breast roller into a mounmental gateway special pedestal through an oblique liner plate of a sphenoid block which is provided with a stop button, and a bolt of a hydraulic tension apparatus. A wheeled type replacing device which is provided with two pairs of tumblers are pushed into a window by a work roller replacing carriage, the roller is lifted by a guide guard plate, the tumblers are stretched, the roller rolls into the center of the window, and is pulled out by the work roller replacing carriage. The utility model has the advantages of firm and reliable transmission type, convenient processing and installation, easy assembly and disassembly, work rate enhancement, etc.

Description

The heavy plate mill breast roll of easily more remodeling

The utility model relates to a kind of independent transmission voussoir fastening-type breast roll, can change the breast roll roller device from the milling train window easily and fast, not only be fit to heavy plate mill, finishing mill, also be suitable in the heavy and medium plate mill technological transformation, also portable is to other milling train.

Known to practice of applicant's professional production and research: heavy and medium plate mill steel rolling characteristics are, the red heat steel billet is lacked and is weighed, roll is reversible drive, roll a lot of passages back and forth at a milling train, breast roll is used for steel billet is nipped and dished out, will bear severe impact load during work, be obstructed in the steel billet motion, breast roll will bear huge slipping torque effect.Residing working environment is very abominable, high-temperature baking, water, water under high pressure and iron scale splash and erosion; And the installation site is among two memorial archways, and the position is very restricted, relevant device is many, and the workshop crane is not often near.Thereby breast roll is impaired easily in the milling train, and maintenance is the equipment of difficulty again.The applicant is general to adopt in the design of steel three factories 3300 heavy plate mills on being three breast roll solid housings of every side, transmission side passes memorial archway and roller end internal spline technical measures such as join by retractable splined shaft, facts have proved effect preferably, but still exist as the processing of roller end internal spline difficult, splined shaft connects and to be difficult for centering during installation, and the lifting breast roll need be dismantled on the milling train problems such as individual component.

The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art part, through repeatedly improving, develops a kind of strong and reliable breast roll that is easy to change.

The purpose of this utility model realizes in the following manner: be included in and respectively be provided with three moving breast rolls of patrilineal line of descent with only one son in each generation and backplate and changing device more on operation roll of mill entrance side and the outlet side memorial archway, promptly be divided into two groups at three breast rolls of the every side of milling train, roller one solid housing by interior two one group of roll, by the bolt of being with the wedge that ends button to add taper liner plate and hydraulic pressure strainer the breast roll bearing block is fastened in the ad hoc pedestal of memorial archway.

Adorn castellated barreled tooth flank internal tooth axle sleeve in the described breast roll roller driving end, energy clutch, retractable barreled tooth flank power transmission shaft move structure with the patrilineal line of descent with only one son in each generation that motor joins again by handle spanner tooth bar clutch.

Describedly utilize the supercharging of guide and guard backplate hydraulic cylinder, the movable hook by establishing double hook in the guide and guard backplate, will lean on each breast roll of two one group of roll both sides to lift by crane a distance with lifting rope, and make in the breast roll bearing block by and leave memorial archway side one distance, form the gap.

Described changing rig is the trolley type structure, respectively there is turning arm beam a pair of hinge-coupled, that the energy half-twist launches the both sides that can pass in and out the wheeled mobile vehicle of milling train window, its front end rests on the ad hoc pivoted arm supporting base of bottom working roll cooling water pipe, the pivoted arm that one side is not launched still is stuck on the car body with skewback backstop, and the roll change buggy that car body one end is welded to connect in hook and the mill roll device joins.

When the need roll change, launch a side two turning arm beams, and be bearing on the special fulcrum of bottom working roll cooling manifold, two breast rolls of one side can be put on the turning arm beam, rolling breast roll roller moves on the dolly of memorial archway window center and roll, draw the turning arm beam in, shift out the milling train window, can make things convenient for, fast change breast roll.The outside each roller and bearing block are directly changed by shop traveller.

The main effect of the utility model has solved in the milling train the most fragile, changes a very difficult again breast roll difficult problem.The breast roll sound construction, fastening simple and reliable, install and remove simple and convenient and can use a simple mechanism easily, breast roll is pulled out fast or pushed fast from the milling train window change, improve operating rate of rolling mill widely, reduce the milling train maintenance workload.

Below in conjunction with accompanying drawing in detail it is described in detail.

Fig. 1 is the utility model breast roll and motor layout drawing.

Fig. 2 is the side view of Fig. 1.

Fig. 3 is that the A of Fig. 2 is to cutaway view.

Fig. 4 is that the B of Fig. 1 is to profile.

Window figure when Fig. 5 is breast roll changing.

Fig. 6 is the breast roll state diagram when being put in more changing device of slinging.

Code name implication among the figure: 1,2 to promote liquid presses piston pole 30 backplates 31 steel cables 32 working roll track a by the breast roll 4 in two breast roll 3 outsides, 5 bearing blocks, 6 taper liner plates 7 in the roll with suspension hook 28 guide and guard backplates 29 guide and guard backplates in wedge 8 hydraulic tensioning device bolts 9 band gib head voussoirs 10 pedestals 11 bearings 12 internal tooth axle sleeves 13 variable-speed motors 14 shaft couplings 15 barreled tooth flank external tooth axles 16 arrangement of clutch 17 skewback backstops 18 breast roll changing device car bodies 19 pivoted arms 20 breast roll changing device butt hooks 21 bottom working roll cooling water pipes 22 breast roll changing device rollers 23 pivoted arm supporting bases 24 breast roll backplate buckle clamps 25 lifting ropes 26 memorial archway chutes 27 backplates of clamping be that breast roll is sling appropriate point position b for hanging at pivoted arm upper spider roller position c as being rolled to the window center position

Implement one: referring to Fig. 1-Fig. 4, on operation roll of mill entrance side and outlet side memorial archway, three patrilineal line of descent with only one son in each generation ejector half breast rolls respectively are set and are divided into two groups, by two breast rolls (1,2) in the roll, be fitted together by two solid housings 4, by the wedge 7 that taper liner plate 6 and band are only buckled, hydraulic pressure strainer bolt 8 tightly is stuck in 10 li of the ad hoc seats of memorial archway.Breast roll 3 in the outside and bearing block 5 also tightly are stuck in outside the memorial archway on the side dado by buckle head voussoir 9 etc.Voussoir 7 one sides are gradient; match with breast roll bearing block end face; when turnbuckle 8; can make breast roll bearing block (4,5), voussoir 7 and taper liner plate 6 tightly be stuck in 10 li of the inboard ad hoc pedestals of memorial archway; enormous impact load is directly delivered on the memorial archway of huge quality on the breast roll, and voussoir 7 also has the effect of protection housing post, when rolling unbalance loading scythe occurs when curved; the steel plate grazing be voussoir 7, so voussoir 7 is also made the usefulness of consumable accessory backplate.Adopt this fastening means, reliability improves, convenient disassembly.Every breast roll roller (1,2,3) two ends head all is equipped with a double-row self-aligning roller bearing 11, the enough breast rolls of its bearer cap under mal-condition, use 5000 little more than; The neck end of roller driving end is embedded with the castellated barreled tooth flank internal tooth axle sleeve 12 of steel alloy; Be contained in the outer variable-speed motor 13 of milling train transmission side frame, by shaft coupling 14 with pass the barreled tooth flank external tooth axle 15 of transmission side memorial archway, directly stretch into the internal tooth axle sleeve of dress in the roller and transmission breast roll roller; Its barreled tooth flank external tooth axle 15, manually 16 controls of operation arrangement of clutch are flexible by one, and in the time of need changing breast roll, barreled tooth flank external tooth axle 15 is thrown off roller internal tooth axle sleeve, in the retraction memorial archway.

The replacing of breast roll is adopted in groups and is changed fast, and promptly near roll both sides each two rollers (1,2) and bearing block 4, gradation is changed from the milling train window and come in and gone out.The outside each roller 3 and bearing block 5 are directly changed by shop traveller, need to prepare the spare part that 1 to 2 cover assembles in groups for this reason.

Embodiment two: with reference to Fig. 5, Fig. 6, the structure of breast roll changing device is the trolley type structure, car body 18 is Welding Structures, eight wheels 22 are housed altogether, respectively there is the pivoted arm 19 of a pair of hinge-coupled the both sides of car body 18, the rotatable 90 ° of expansion of this pivoted arm, its front end rest on the ad hoc pivoted arm supporting base 23 of bottom working roll cooling water pipe 21.Bottom working roll cooling water pipe 21 designs firmlyer, two ends are that deck is on mill housing.The pivoted arm that one side is not launched still is clamped on the car body 18 with skewback backstop 17.The butt hook 20 of car body 18 1 ends welding joins with roll change buggy hook in the mill roll device.Therefore the wheel 22 of breast roll changing device can be come in and gone out in the milling train window along the change jobs track 32 of roller of milling train, makes by two groups on roll (each two) breast roll 2 and bearing block 4 and changes from the milling train window easily.For guaranteeing to be provided with between the convenient lifting of breast roll, two rollers the backplate 30 of anti-drill steel.Backplate 30 two ends are fastened on the breast roll bearing block 4 by the clamp 24 of band suspension hook.Be provided with double hook movable hook 27 in the guide and guard backplate 28 (seeing " heavy and medium plate mill packaging type guide and guard backplate " that the applicant submits simultaneously for details) in addition,,, two one group of breast rolls vertically can be sling or put down by the lifting of guide and guard backplate by lifting rope 25.Suspension hook 27 also can hang up steel cable 31, makes opposite side breast roll (falling to being placed on the pivoted arm) be moved horizontally to the function of milling train window center by the breast roll roller (making fixed pulley) that fixes.

Because be contained in two breast rolls 3 in the outside, shop traveller directly can lift, change very simply, only will be described below below near each two breast roll (1,2) of roll both sides replacing step:

1, upper working rolls and lower working rolls is pulled out outside the window, have the breast roll changing device of roller to push framework window with one by the roller arrangement that changes jobs.

2, on 27 suspension hooks, hang up lifting rope 25 and link to each other, guide and guard backplate 28 is risen to correct position with breast roll backplate two ends suspension hook 27.

3, move breast roll clutch drive shaft 16 handles barreled tooth flank external tooth axle 15 is withdrawed from roller end internal tooth axle sleeve 12, unclamp the breast roll fastener, guide and guard backplate 28 hydraulic cylinders boost and two breast rolls (1,2) and bearing block 4 are risen to 130mm and locking as figure go up outside a then.Because during lifting rope 25 liftings certain angle arranged, guarantee to lean in the breast roll two end axles bearing 4, the face that joins with memorial archway forms space in a small amount, moves in order to roller.

4, take off a skew back piece backstop 17 and manually move a side two pivoted arms 19 on the breast roll changing rig, rotate 90 °, rest on the ad hoc rest pad 23 of bottom working roll cooling water pipe 21.

5, guide and guard backplate 28 hydraulic cylinders are by the throttling pressure release, and two breast rolls that will sling lentamente are put on the pivoted arm 19 that launches the b position, take off lifting rope 25.

6, promote or prize the breast roll roller with instrument and be rolled into breast roll changing rig center c (by skewback backstop 17 location) at pivoted arm.Draw pivoted arm 19 in, again by 17 lockings of skewback backstop.

7, push window again after by changing rig breast roll being pulled out framework window and the exchange of new breast roll, load onto new breast roll suddenly by above contragradience, and then change the breast roll of opposite side.

If rolling bearing is cracked on 8 breast rolls, artificial being difficult for rolls, can do on the suspension hook that fixed pulley is suspended to this side guide and guard backplate again to raise, will drop on and the breast roll of cracked bearing hard draw be arranged on the pivoted arm with the breast roll roller that steel wire rope 31 fixes by other side, change to milling train window center c position by the guide and guard backplate.

Claims (4)

1, a kind of heavy plate mill breast roll of easily more remodeling, be included in and respectively be provided with three moving breast rolls of patrilineal line of descent with only one son in each generation and backplate and changing device more on operation roll of mill entrance side and the outlet side memorial archway, it is characterized in that: three breast rolls of the every side of milling train are divided into two groups, roller one solid housing by interior two one group of roll, by the bolt of being with the wedge that ends button to add taper liner plate and hydraulic pressure strainer the breast roll bearing block is fastened in the ad hoc pedestal of memorial archway.

2, the heavy plate mill according to claim 1 breast roll of easily more remodeling, it is characterized in that: adorn castellated barreled tooth flank internal tooth axle sleeve in the breast roll roller driving end, energy clutch, retractable barreled tooth flank power transmission shaft move structure with the patrilineal line of descent with only one son in each generation that motor joins again by handle spanner tooth bar clutch.

3, the heavy plate mill according to claim 1 breast roll of easily more remodeling, it is characterized in that: utilize the supercharging of guide and guard backplate hydraulic cylinder, movable hook by establishing double hook in the guide and guard backplate, will lean on each breast roll of two one group of roll both sides to lift by crane a distance with lifting rope, and make in the breast roll bearing block by and leave memorial archway side one distance, form the gap.

4, the heavy plate mill according to claim 1 breast roll of easily more remodeling, it is characterized in that: more changing device is the trolley type structure, respectively there is turning arm beam a pair of hinge-coupled, that the energy half-twist launches the both sides that can pass in and out the wheeled mobile vehicle of milling train window, its front end rests on the ad hoc pivoted arm supporting base of bottom working roll cooling water pipe, the pivoted arm that one side is not launched still is stuck on the car body with skewback backstop, and the roll change buggy that car body one end is welded to connect in hook and the mill roll device joins.

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