CN203541467U - Dummy bar of vertical type round billet continuous casting machine - Google Patents

Abstract

The utility model discloses a dummy bar of a vertical type round billet continuous casting machine, and relates to a rigid dummy bar device which is specially used for continuously casting vertical large-cross section (phi800 to 1200mm) round billets to continuously produce cast ingots. The dummy bar is of a hollow round rod joint structure, and comprises rod joints of a dummy bar body, dummy heads, dummy head rod joints, connecting components, dummy head locking devices, and a well-known bolt with a T-shaped head, wherein the dummy bar body is provided with a plurality of round hollow rod joints, the upper and lower ends of the each rod joint are respectively provided with a stop opening, the interior of each rod joint is provided with a flange disc, each flange disc is uniformly distributed with bolt holes, and the adjacent rod joints are fixedly connected by a connecting bolt through a bolt hole; the rod joints of the dummy bar body, the dummy head rod joints and the dummy heads are fixedly connected through the bolt with the T-shaped head; a vertical locking bolt and a horizontal locking bolt are arranged between the dummy head rod joints and the dummy heads and are used for connecting the dummy heads and dummy head rods; the rod joints of the dummy bar body and the dummy head rod joints are connected and locked through connecting bolts. The dummy bar has the advantages that the structure is simple, the weight is light, and the dummy bar can be easily replaced.

Description

A kind of vertical round billet continuous casting power traction spindle blade

Technical field

The utility model relates to a kind of vertical round billet continuous casting machine dummy bar device, is specially for vertical large section (φ 800～1200mm) round billet continuous casting and produces required dummy bar, belongs to metallurgy industry continuous casting installation for casting technical field.

Background technology

Along with the manufacturing fast development of China's weight equipment, large-scale blank (as: more than 800 round base, thick more than 500 rectangular blooms of φ, thick more than 400 slab), the market demand of special high-alloy steel mould steel such as (as:) H13, D2 progressively increases, mainly for the manufacture of the core component of the industry such as national defence, electric power, shipbuilding.And vertical casting machine is relatively applicable to the continuous production of this large-scale special blank, have advantages of that cc billet surface quality and internal soundness are better than arc shaper, internal soundness is even better than large-scale steel ingot.The large section casting blank that vertical round base casting machine is produced is mainly the blank as large forgings, with the supporting dummy bar of vertical round billet continuous casting machine, it is one of corollary equipment important on production line, because dummy bar is mainly used for the circular strand (φ 800～1200mm) of large section, strand linear mass large (strand 8.6T/m as solid in φ 1200mm), dummy bar length is generally 8～10m, if be also solid construction, must need very large chucking power just can complete dummy ingot, therefore be designed to hollow-core construction dummy bar, in the situation that guaranteeing structural strength, alleviating as much as possible dummy bar weight of equipment necessitates, on the other hand, that the dummy bar of design has is simple in structure, dummy bar head is easy to replacing feature, will more be conducive to serialization production operation, reduce production costs, alleviates operator's labour intensity.

Existing domestic large-scale vertical circle casting machine is the single solid strand operating type of discontinuous formula, does not look into and newly goes out to be exclusively used in large-scale vertical circle casting machine solid strand dummy bar aspect patent or the document record that can work continuously.The process units > > of a patent of invention < < vertical pipe continuous casting (application number: 201210123968.4) be the conticaster of producing hollow pipe strand, 201110297887.1) and < < especially big sectional plane round billet continuous casting machine > > (application number: 200810233951.8) patent of invention < < continuous casting of ultra-thick plate technique and conticaster > > (application number:, all do not relate to the application for the required relevant device aspects such as dummy bar, utility model patent < < dummy bar > > (application number: 201120088505.X) and mono-kind of < < metallurgical with dummy bar > > (application number: 201220175761.7) disclosed, only to have solved between dummy ingot shaft and bar head by just to the more smooth and easy aspect of the transition problem of circular cross-section.

Summary of the invention

The purpose of this utility model is for content described in background technology, design a kind of rigid leading ingot lever apparatus that vertical large section (φ 800～1200mm) round billet continuous casting can be produced ingot casting continuously that is exclusively used in, described dummy bar is hollow round bar joint structure, comprises this body rod of dummy bar joint, dummy bar head, dummy ingot head rod joint, dummy bar head locking device.Simple in structure, lightweight, dummy bar head is easy to change.

The technical solution of the utility model is: a kind of vertical round billet continuous casting power traction spindle blade, it is a kind of round strand dummy bar of hollow round bar joint structure, comprise this body rod of dummy bar joint, dummy bar head, dummy ingot head rod joint, connector, dummy bar head locking device, also have known T connector bolt; It is characterized in that: described this body rod of dummy bar joint is comprised of at least 5 pitch circle shape hollow stem joints, all there is the seam of anti-radial displacement the upper and lower end of each this body rod joint, there is a support Zhu plate inside of described body rod joint, Suo states on Zhi Cheng Zhu plate ring flange, along ring flange circumferencial direction, be uniformly distributed at least 12 bolts hole, between adjacent bar joint, by equally distributed at least 6 connecting bolts, by described bolt hole, be connected between two;

Described dummy bar head be one with the disk of dummy ingot gib head, described disk middle part have can through the big hole of T connector bolt, can be through the small sircle hole of clamping screw near having in the card of outer;

The hollow stem that described dummy ingot head rod joint is that lower end is connected with this body rod joint, upper end and dummy bar head are connected saves; There is nut that the T connector bolt through dummy ingot head rod joint and dummy bar head disk is connected;

Described dummy bar head locking device is that dummy ingot head rod is saved with the vertical and level of dummy bar head disk locking to clamping screw, described vertically wearing to the upper end of clamping screw is connected in dummy bar head disk upper and lower end and has a screwed hole, on dummy ingot head rod joint cylindrical, have dormant bolt hole, described level is screwed in vertical in the screwed hole of clamping screw lower end through described dormant bolt hole to clamping screw, by dummy bar head disk and the locking of dummy ingot head rod joint.

The beneficial effects of the utility model are: hollow stem nodular dummy bar is conducive to alleviate dummy bar weight, can reduce the required chucking power of dummy ingot; T connector bolt is mainly born vertical lifting and the dummy ingot function of dummy bar assembly; When dummy ingot process finishes, whole dummy bar is while running to flame cutting machine position, after the T connector bolt that is positioned at dummy bar head top is cut off by flame cutting machine, in order to prevent that dummy bar head and dummy bar body from departing from, vertically, level is to retaining mechanism fixedly dummy bar head and a bit of strand, when dummy bar is sent to maintenance area, only need unclamp the connecting bolt of this retaining mechanism, dummy bar head and dummy bar body just can directly be thrown off, and carry out easily dummy bar head replacing.

Accompanying drawing explanation

Fig. 1 is the utility model example structure schematic diagram;

Fig. 2 is dummy bar assembly schematic three dimensional views;

Fig. 3 is dummy ingot head rod joint structural representation;

Fig. 4 is the connection schematic three dimensional views between this body rod of dummy bar joint;

Dummy bar schematic diagram when Fig. 5 is in running order.

Mark in figure: 1-crystallizer, 2-molten steel, 3-dummy bar head, this body rod of 4-dummy bar joint, 5-clamping driven roller, 6-dummy ingot gib head, 7-T connector bolt, 8-nut, 9-spacer, 10-vertically to clamping screw, 11-level is to clamping screw, 12-connecting bolt, 13-dummy ingot head rod joint, 14-Zhu plate.

The specific embodiment

Below in conjunction with accompanying drawing, the enforcement of technical scheme is described in further detail:

As shown in Fig. 1～5, for the vertical round billet continuous casting machine of the utility model dummy bar device, it is the rigid dummy bar of using for the vertical round billet continuous casting machine of large section, comprise this body rod of dummy bar joint 4, dummy bar head 3, dummy ingot head rod joint 13, connector 12, dummy bar head locking device, also have the T connector bolt 7 of M100.As shown in Figure 1, each this body rod of dummy ingot saves between 4 the connection scheme of each several part, uses successively from top to bottom 6 connecting bolts 12 to connect locking, and dummy ingot head rod joint 13 is to be also connected locking by 6 connecting bolts between saving 4 with the top this body rod of dummy ingot.

This body rod of dummy bar joint is comprised of at least 5 joint dummy bar bar joints 4, this body rod of dummy bar joint 4 and dummy ingot head rod joint 13 all adopt 42CrMo material, be cast as thick-wall hollow pipe fitting, inside is provided with bearing rib 14, two ends up and down at this body rod of dummy bar joint 4 are equipped with seam, radial displacement between anti-stopping bar joint, there is disk at bar joint Nei Zhi Cheng Zhu plate middle part, on disk, be uniformly distributed a circle totally 12 bolts hole, between two adjacent bolts hole, one is for connecting the bar joint of lower one deck, another is for connecting the bar joint of last layer, therefore between adjacent stems joint, there are 6 connecting bolts 12 to connect, adopt the bolt connecting mode of this interlaced arrangement, the stress that can guarantee each dummy bar bar joint is basically identical.

The T connector bolt 7 of M100 is mainly born vertical lifting and the dummy ingot function of dummy bar assembly, and T connector bolt 7 is connected locking by dummy bar head 3 with dummy ingot head rod joint by nut 8 and spacer 9.To be this body rod of dummy bar joint 4 save vertical, level between 13 to clamping screw 10,11 with dummy ingot head rod with dummy bar head locking device, wherein vertically to the upper end of clamping screw 10, wear on the disk that is connected in dummy bar head 3, the lower end of bolt 10 has a screwed hole, the dummy ingot head rod being connected with dummy bar head 3 saves and on 13 cylindricals, has dormant bolt hole, level is screwed in vertical in the screwed hole of clamping screw 10 bottoms through described dormant bolt hole to clamping screw 11, by dummy bar head 3 and 13 lockings of dummy ingot head rod joint.

In the course of work, dummy ingot head rod joint 13 is by connecting bolt 12 and 4 lockings of this body rod of dummy bar joint, during locking dummy bar head 3, first dummy bar head 3 is put on dummy ingot head rod joint 13, penetrate vertically to clamping screw 10, again level is screwed into vertically in the screwed hole of clamping screw 10 bottoms, then by the vertical nut screwing clamping to clamping screw 10 tops to clamping screw 11.

When dummy ingot process finishes, when whole dummy bar runs to flame cutting machine position, after the T connector bolt 7 that is positioned at dummy bar head 3 tops is cut off by flame cutting machine, in order to prevent that dummy bar head 3 and dummy ingot head rod joint 13 from departing from, vertically, level is understood fixedly dummy bar head 3 and a bit of strand to clamping screw 10 and 11, when dummy bar is sent to maintenance area, only need unclamp the clamping screw 10,11 of this retaining mechanism, between dummy bar head 3 and dummy bar head rod joint 13, just can directly throw off, then carry out easily dummy bar head and more change jobs.

The utility model dummy bar is mainly used for the circular strand (800-1200mm diameter) of large section, can learn as calculated, for the dummy bar of 1200mm diameter, if employing solid construction, its weight is 8.6 tons/meter, and general dummy bar length is about 8～10m, so gross weight is the highest will reach 86 tons, press the utility model scheme, adopt hollow-core construction dummy bar, its weight is about 3.3 tons/meter, therefore, in the situation that guaranteeing structural strength, alleviated greatly gross weight of equipment amount.

Claims (1)

1. a vertical round billet continuous casting power traction spindle blade, is a kind of round strand dummy bar of hollow round bar joint structure, comprises this body rod of dummy bar joint, dummy bar head, dummy ingot head rod joint, connector, dummy bar head locking device, also has known T connector bolt; It is characterized in that: described this body rod of dummy bar joint is comprised of at least 5 pitch circle shape hollow stem joints, all there is the seam of anti-radial displacement the upper and lower end of each this body rod joint, there is a support Zhu plate inside of described body rod joint, Suo states on Zhi Cheng Zhu plate ring flange, along ring flange circumferencial direction, be uniformly distributed at least 12 bolts hole, between adjacent bar joint, by equally distributed at least 6 connecting bolts, by described bolt hole, be connected between two;

Described dummy bar head be one with the disk of dummy ingot gib head, described disk middle part have can through the big hole of T connector bolt, can be through the small sircle hole of clamping screw near having in the card of outer;

The hollow stem that described dummy ingot head rod joint is that lower end is connected with this body rod joint, upper end and dummy bar head are connected saves; There is nut that the T connector bolt through dummy ingot head rod joint and dummy bar head disk is connected;

Described dummy bar head locking device is that dummy ingot head rod is saved with the vertical and level of dummy bar head disk locking to clamping screw, described vertically wearing to the upper end of clamping screw is connected in dummy bar head disk upper and lower end and has a screwed hole, on dummy ingot head rod joint cylindrical, have dormant bolt hole, described level is screwed in vertical in the screwed hole of clamping screw lower end through described dormant bolt hole to clamping screw, by dummy bar head disk and the locking of dummy ingot head rod joint.

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