CN204276844U

CN204276844U - Dummy bar, dummy bar dolly and there is the system of this dummy bar and dummy bar dolly

Info

Publication number: CN204276844U
Application number: CN201420382983.5U
Authority: CN
Inventors: W.豪斯莱特纳; M.萨尔姆霍弗
Original assignee: Siemens VAI Metals Technologies GmbH Austria
Current assignee: Primetals Technologies Austria GmbH
Priority date: 2013-07-12
Filing date: 2014-07-11
Publication date: 2015-04-22
Anticipated expiration: 2024-07-11
Also published as: EP2823915B1; EP2823915A1; DE102013213650A1

Abstract

The utility model relates to a kind of dummy bar (1) and a kind of dummy bar dolly (3) and a kind of system with described dummy bar and dummy bar dolly.Described dummy bar dolly is for receiving this dummy bar (1).Task of the present utility model is, a kind of dummy bar (1) and a kind of dummy bar dolly (3) are described, wherein automatically and by simple mechanical mechanism, dummy bar (1) is centered on dummy bar dolly (3).This task so solves for dummy bar (1): dummy bar (1) has at least two spigot surfaces tilted (6,6a, 6b) relative to horizontal line (H), spigot surface is arranged in the both sides of the vertical central plane (M) stretched in a longitudinal direction, and spigot surface, relative to the angle (α) of described horizontal line (H), there is different symbols, wherein spigot surface (6,6a, 6b) is configured to taper, and each spigot surface (6,6a, 6b) is arranged in above the roller (7) that can rotate.

Description

Dummy bar, dummy bar dolly and there is the system of this dummy bar and dummy bar dolly

Technical field

The utility model relates to the field of the technology of continuous casting, specifically relates to dummy bar centering automatically on dummy bar dolly.

On the one hand, the utility model relates to a kind of dummy bar for sealing the crystallizer of conticaster, and the longitudinal direction of wherein said dummy bar should extend along horizontal line.

On the other hand, the utility model relates to a kind of for receiving the described dummy bar dolly by dummy bar of the present utility model, and the longitudinal direction of wherein said dummy bar dolly should extend along horizontal line equally.In addition, the utility model also relates to a kind of system with described dummy bar and dummy bar dolly.

Background technology

When casting continuously, know that before casting starts, carry out fluid by so-called dummy bar closes described crystallizer hermetically.Cast start time, by the metal of liquid state, be in general that steel is poured in described crystallizer, in described crystallizer, be constituted to the continuous casting billet that small part is solidified thus.Subsequently the described continuous casting billet welded together with the end (so-called dummy head) of the top of dummy bar is pulled out from described crystallizer, and make it separate with described dummy bar.In the outside of described conticaster, described dummy bar is typically kept by so-called dummy bar dolly, and before casting starts otherwise from top (English: top-feeding) or from below (English: bottom-feeding) be added into described crystallizer.

Before described dummy bar is joined in described crystallizer, described dummy bar is moved on described dummy bar dolly by slewing rollers with suspension hook chain.Draw shifting movement by this, described dummy bar may move direction slip transverse to drawing, thus it must be made to feel relieved by hydraulic cylinder subsequently.The centering of described typically very heavy dummy bar is cumbersome, and represents additional job step.Do not know from prior art how reliably to prevent described dummy bar from sliding by simple means.

Utility model content

Task of the present utility model is, overcome the shortcoming of prior art and a kind of dummy bar (Kaltstrang) and a kind of dummy bar dolly (Kaltstrangwagen) are described, wherein automatically and by the mechanism of simple machinery, described dummy bar is centered on described dummy bar dolly.Reliably should prevent the slip of described dummy bar on described dummy bar dolly thus.

Start the dummy bar mentioned and solve above-mentioned task in the following manner: described dummy bar has at least two spigot surfaces tilted relative to described horizontal line, described spigot surface is arranged in the both sides of the vertical central plane stretched in a longitudinal direction, and described spigot surface, relative to described horizontal angle, there is different symbols.In addition, described guide surface configurations is taper, and wherein each spigot surface is arranged on the roller that can rotate.

Spigot surface on the spigot surfaces of two by described dummy bar two same inclinations that tilt, that be supported on described dummy bar dolly respectively, described dummy bar is automatically centered on described dummy bar dolly, and does not need mechanism, such as hydraulic cylinder separately or independent workflow for this reason.

Described spigot surface stands load equably, because it is configured to taper and each spigot surface is arranged on a roller that can rotate.Thus, the friction between the spigot surface of described dummy bar and the spigot surface of described dummy bar dolly is reduced in equally.

Described dummy bar is guided equably in the scope of its extending longitudinally degree in the following cases: described dummy bar has at least four spigot surfaces, wherein at least two spigot surfaces are arranged in the region before described dummy bar, preferably at least two other spigot surfaces are arranged in the region of the centre of described dummy bar, and at least two spigot surfaces are arranged in described dummy bar region below.

Described dummy bar, two sides along width feel relieved with uniform degree, if described spigot surface is formed symmetrically about central plane.

Beginning institute mentions dummy bar dolly and solves described by task of the present utility model in the following manner: described dummy bar dolly has the spigot surfaces of at least two inclinations, described spigot surface is arranged in the both sides of the vertical central plane that is stretched in a longitudinal direction, and wherein said spigot surface, relative to horizontal angle, there is different symbols.

In this case, also advantageously, described spigot surface is formed symmetrically about the central plane of described dummy bar dolly.

In principle, arrange static (not revolvable) spigot surface and arrange the spigot surface that can rotate to described dummy bar dolly can to equally described dummy bar.Because described dummy bar is moved by the static strand guide installation of described conticaster after casting starts, so advantageously, described dummy bar (and not being described dummy bar dolly) has the spigot surface that can rotate.

Describedly be by by dummy bar dolly of the present utility model and the salient point of system that forms by dummy bar of the present utility model, the spigot surface of each inclination of described dummy bar is placed on the spigot surface of the corresponding inclination of described dummy bar dolly.

In order to extruding force being remained in lower level, advantageously, for the angle beta of the angle [alpha] of the spigot surface of described dummy bar and the spigot surface of described dummy bar dolly, be suitable for .

Accompanying drawing explanation

Other advantage of the present utility model and feature obtain from following nonrestrictive embodiment description, and wherein accompanying drawing illustrates:

Fig. 1 is by perspective view that is of the present utility model, self centering, dummy bar;

Fig. 2 is the details A of Fig. 1;

Fig. 3 is the perspective view by dummy bar dolly of the present utility model;

Fig. 4 is the details B of Fig. 3;

Fig. 5 is the side view of the dummy bar dolly of Fig. 3;

Fig. 6 is the section C-C of Fig. 5; And

Fig. 7 is the detail D of Fig. 6.

Reference numerals list:

1 dummy bar;

2 dummy bar links;

3 dummy bar dollies;

4 wheels;

5 running driving devices;

6,6a, 6b dummy bar spigot surface;

7 rollers;

8 suspension hook chains;

9 deflecting rollers;

10 dummy heads;

16, the spigot surface of 16a, 16b dummy bar dolly;

D rotation;

H horizontal line;

M central plane;

α, β angle.

Detailed description of the invention

Fig. 1 illustrate in perspective view a kind of by dummy bar 1 of the present utility model.In order to described dummy bar 1 can be made in the casting arc of conticaster (Gie bogen) to bend, described dummy bar 1 has multiple dummy bar link 2 be connected to each other in hinged way.Have described dummy head 10 in region before described dummy bar 1, this dummy head can seal unshowned crystallizer Fluid Sealing.Can learn from figure, have respectively in region in region in the region of described dummy bar 1 before this dummy bar, in the middle of it and after it two tapers, be in the spigot surface 6 obtained in the mode that can rotate on the roller 7 that supports, make described dummy bar 1 automatically can be centered in (Fig. 3 is to 7) on dummy bar dolly.

Figure 2 illustrates the details A of Fig. 1.Specifically, show two dummy bar links 2 of described dummy bar 1, these two dummy bar links are connected to each other in hinged mode by rotation D.There is described in the while of described rotation D being also the rotation of the roller 7 of the spigot surface 6 of taper.

Fig. 3 illustrate in perspective view by dummy bar dolly 3 of the present utility model.Described dummy bar dolly 3 such as can be moved by four wheels 4 on the casting platform of conticaster, and makes described dummy bar 1 move towards the direction of crystallizer again from the separator for being separated from described strand by described dummy bar like this.When described dummy bar 1 is received on described dummy bar dolly 3, described dummy bar 1 to be moved on described dummy bar dolly 3 by deflecting roller 9 by suspension hook chain 8.

Fig. 4 shows the details B of Fig. 3.Therefrom can learn, for each spigot surface 6 of described dummy bar 1 or each deflector roll 7 are assigned with a spigot surface 16 tilted accordingly on described dummy bar dolly 3.By described spigot surface 16, described dummy bar 1 is centered on described dummy bar dolly 3.

Fig. 5 shows the side view of the dummy bar dolly 3 of Fig. 3, and this dummy bar dolly can be moved by running driving device 5.

Figure 6 illustrates the section C-C of Fig. 5.Fig. 7 shows the details of Fig. 6.Described dummy bar 1 above, central with there is in the both sides of the vertical central plane M stretched in a longitudinal direction in region below spigot surface 6a, the 6b tilted respectively, spigot surface 6a, 6b of wherein said inclination tilt with angle [alpha] relative to described horizontal line H.At this, the angle of described spigot surface 6a, 6b has different symbols (+α and-α) respectively.Specifically, described spigot surface 6a, 6b are arranged on a roller that can rotate 7 symmetrically about the central plane M of described dummy bar 1.Described spigot surface 6a, 6b are also formed symmetrically about the central plane M of described dummy bar dolly 3.Described dummy bar 1 is moved when spigot surface 16a, the 16b of the inclination relative to described dummy bar dolly 3 rub few by spigot surface 6a, 6b of described taper on the described roller 7 that can rotate thus.Described roller 7 obtains supporting in the mode that can rotate relative to described dummy bar 1 as by rolling bearing or sliding bearing.When shown, the vertical central plane M of described dummy bar 1 is identical with the central plane M of described dummy bar dolly 3.Described dummy bar dolly 3, two spigot surface 16a, 16b being in the inclination of central plane M both sides tilt with angle beta relative to described horizontal line H, the angle of spigot surface 16a, 16b of wherein said dummy bar dolly 3 has again different symbols (+β and-β) respectively.In addition, be suitable for .

By spigot surface 16a, 16b of the described inclination be on dummy bar dolly 3, described dummy bar 1 is automatically felt relieved by its spigot surface 6a, 6b, thus ensuing (carrying out as by hydraulic cylinder) centering operation can be saved.

Although carried out detailed diagram and description by described preferred embodiment to the utility model; but the utility model is not restricted by the disclosed embodiments; and can therefrom derive other flexible program by those skilled in the art, and not leave protection domain of the present utility model.

Claims

1. the dummy bar (1) for carrying out sealing for the crystallizer of conticaster, the longitudinal direction of wherein said dummy bar (1) extends along horizontal line (H), it is characterized in that, described dummy bar (1) has at least two spigot surfaces (6 tilted relative to described horizontal line (H), 6a, 6b), described spigot surface is arranged in the both sides of the vertical central plane (M) stretched in a longitudinal direction, and described spigot surface (6, 6a, 6b), relative to the angle (α) of described horizontal line (H), there is different symbols, wherein said spigot surface (6, 6a, 6b) be configured to taper, and each spigot surface (6, 6a, 6b) be all arranged on the roller (7) that can rotate.

2. by dummy bar according to claim 1, it is characterized in that, described dummy bar (1) has at least four spigot surfaces (6,6a, 6b), wherein two spigot surfaces (6,6a, 6b) are arranged in the region before described dummy bar (1), preferably two other spigot surfaces (6,6a, 6b) are arranged in the region of the centre of described dummy bar (1), and the spigot surface that two other (6,6a, 6b) is arranged in described dummy bar (1) region below.

3. by dummy bar in any one of the preceding claims wherein, it is characterized in that, described spigot surface (6,6a, 6b) is formed symmetrically about the central plane (M) of described dummy bar (1).

4. dummy bar dolly (3), for receiving by dummy bar in any one of the preceding claims wherein (1), the longitudinal direction of wherein said dummy bar dolly (3) extends along horizontal line (H), it is characterized in that, described dummy bar dolly (3) has at least two spigot surfaces (16,16a, 16b) tilted, described spigot surface is arranged in the both sides of the vertical central plane (M) stretched in a longitudinal direction, wherein said spigot surface (16,16a, 16b), relative to the angle (β) of horizontal line (H), there is different symbols.

5. by dummy bar dolly (3) according to claim 4, it is characterized in that, described spigot surface (16,16a, 16b) is formed symmetrically about the central plane (M) of described dummy bar dolly (3).

6. have by the dummy bar dolly (3) according to any one of claim 4 to 5 and the system by the dummy bar (1) according to any one of Claim 1-3, it is characterized in that, the spigot surface of each inclination of described dummy bar (1) (6,6a, 6b) is placed on the spigot surface (16,16a, 16b) of the corresponding inclination of described dummy bar dolly (3).

7., by system according to claim 6, it is characterized in that, for the angle (β) of the spigot surface (16,16a, 16b) of the angle (α) of the spigot surface (6,6a, 6b) of described dummy bar (1) and described dummy bar dolly (3), applicable .