CN220028616U - Dummy bar body connection structure - Google Patents

Abstract

The utility model discloses a dummy bar body connecting structure, which relates to the technical field of dummy bars, wherein the dummy bar comprises a plurality of bar bodies, dummy bar heads and transition pieces, the bar bodies comprise a first bar body and a second bar body, every two adjacent bar bodies are connected through the connecting structure, the connecting structure comprises a concave-convex plugboard, a concave-convex groove and a plurality of first bolts, and one end of each first bar body is connected with the transition piece and the dummy bar head which form the dummy bar; according to the utility model, the concave-convex plugboard of the first rod body is matched with the concave-convex groove of the second rod body in a plugging manner, so that the bearing of each force perpendicular to the plugging direction can be realized, the connecting part of the concave-convex plugboard and the end face of the rod body is fixed through the bolts, and the connecting part is in an irregular shape, so that the connecting part is stronger and firmer compared with the straight shape in the prior art.

Description

Dummy bar body connection structure

Technical Field

The utility model relates to the technical field of dummy bars, in particular to a dummy bar shaft connecting structure.

Background

Dummy bar, one of the important devices for continuous cast steel and iron making. The dummy bar consists of a dummy bar head, a transition piece and a bar body. Before casting, the dummy bar head and part of the transition piece enter a crystallizer to form a movable 'inner bottom' of the crystallizer, after casting is started, molten steel is solidified and is condensed with the dummy bar head, a dummy bar is pulled by a withdrawal and straightening machine, a casting blank is continuously pulled out of the crystallizer until the dummy bar head is separated from the casting blank by the rear of the withdrawal and straightening machine, and the casting blank enters a dummy bar storage device.

The early rigid dummy bar body is of a whole arc steel structure, and a plurality of arc sections are manufactured and connected through bolts. The rigid dummy bar is inserted into the crystallizer more flexibly and conveniently, and brings convenience for manufacturing and transporting the dummy bar.

However, in the conventional mode of the bolt connection, a slot is usually formed in one of the butt joint positions of the two shafts, and a lug is arranged on the other end face and is fixed through a bolt after being inserted into the slot, so that in the long-time use process of the dummy bar, the joint position of the lug and the other shaft is in a straight shape, as shown in fig. 7, the lug is easy to bend or break, the connection is unstable, and the normal use of the dummy bar is affected.

Disclosure of Invention

According to the dummy bar body connecting structure, the concave-convex inserting plate of the first bar body is matched with the concave-convex groove of the second bar body in a plugging manner, so that the force perpendicular to the plugging direction can be borne, the dummy bar is fixed through the bolts, and the joint of the concave-convex inserting plate and the end face of the bar body is in an irregular shape, so that the dummy bar is stronger and firmer compared with the straight shape in the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the dummy bar body connecting structure comprises a plurality of bar bodies, a dummy bar head and a transition piece, wherein each two adjacent bar bodies comprise a first bar body and a second bar body, each two adjacent bar bodies are connected through the connecting structure, the connecting structure comprises a concave-convex inserting plate, a concave-convex groove and a plurality of first bolts, one end of the first bar body is connected with the transition piece and the dummy bar head which form the dummy bar, the end face of the other end of the first bar body is fixedly connected with the concave-convex inserting plate, the concave-convex inserting plate is in a shape formed by a T-shaped groove formed in one side of the end face of the first bar body, a U-shaped groove is formed in the other side of the end face of the first bar body, a T-shaped plate is arranged in one side of the end face of the second bar body, a U-shaped plate is arranged in the other side of the end face of the second bar body, grooves formed between the T-shaped plate and the U-shaped plate are concave-convex grooves, first bolt holes are formed in the T-shaped plate and the U-shaped plate, the concave-convex grooves are matched with the concave-convex inserting plates in the shapes, and the first bolt holes correspond to the second bolt holes after the concave-convex inserting plates are inserted into the concave-convex grooves, and the concave-convex bolt holes are fixed with the T-shaped bodies and the second bar body; the connection mode between every two adjacent pole bodies is the same as the connection mode of the first pole body and the second pole body.

Preferably, the concave-convex plugboard and the rod body are manufactured in an integrated mode, and the T-shaped plate and the U-shaped plate are manufactured in an integrated mode with the rod body.

Preferably, the novel structure comprises a pair of fixing plates, wherein the fixing plates are fixedly connected with every two adjacent rod bodies through second bolts.

Preferably, the ends of the concave-convex plugboard, the T-shaped board and the U-shaped board are provided with chamfers.

The utility model provides a dummy bar body connecting structure, which has the following beneficial effects:

1. according to the utility model, the concave-convex plugboard of the first rod body is matched with the concave-convex groove of the second rod body in a plugging manner, so that the bearing of each force perpendicular to the plugging direction can be realized, the concave-convex plugboard is fixed through the bolts, and the connection part of the concave-convex plugboard and the end face of the rod body is in an irregular shape, so that the connection part is stronger and firmer than the straight shape in the prior art;

2. according to the utility model, the side walls of the first rod body and the second rod body are provided with the fixing plates, and the fixing plates are respectively fixed with the first rod body and the second rod body through the second bolts, so that the stability and the firmness of connection of the first rod body and the second rod body are further enhanced.

Drawings

FIG. 1 is a schematic front view of a dummy bar shaft connecting structure at the shaft connecting part according to the present utility model;

FIG. 2 is an overall schematic view of a dummy bar shaft connection structure according to the present utility model;

FIG. 3 is a schematic view of a first shaft in a dummy bar shaft connecting structure according to the present utility model;

FIG. 4 is a schematic view of a second shaft in a dummy bar shaft connecting structure according to the present utility model;

FIG. 5 is a schematic view of a dummy bar shaft connecting structure of the present utility model with a fixing plate added thereto;

FIG. 6 is a schematic view of a concavo-convex insert plate in a dummy bar shaft connection structure according to the present utility model;

fig. 7 is a schematic diagram of the prior art.

In the figure: 1. a dummy bar head; 2. a transition piece; 3. a first shaft; 4. a second shaft; 5. a first bolt; 6. a fixing plate; 7. a second bolt; 8. chamfering; 31. a concave-convex plugboard; 32. a T-shaped groove; 33. a U-shaped groove; 34. a first keyhole; 41. concave-convex grooves; 42. t-shaped plates; 43. a U-shaped plate; 44. and a second bolt hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-7, a dummy bar body connecting structure is provided, the dummy bar comprises a plurality of bar bodies, a dummy head 1 and a transition piece 2, the plurality of bar bodies comprise a first bar body 3 and a second bar body 4, every two adjacent bar bodies are connected through the connecting structure, the connecting structure comprises a concave-convex plugboard 31, a concave-convex slot 41 and a plurality of first bolts 5, one end of the first bar body 3 is connected with the transition piece 2 and the dummy head 1 which form the dummy bar, the other end is fixedly connected with the concave-convex plugboard 31, the concave-convex plugboard 31 is in a shape formed by a T-shaped slot 32 formed on one side of the end surface of the first bar body 3, a U-shaped slot 33 formed on the other side of the end surface of the first bar body 3, a T-shaped plate 42 is arranged on one side of the end surface of the second bar body 4, a U-shaped plate 43 is arranged on the other side of the end surface of the second bar body, a concave-convex slot 41 is formed between the T-shaped plate 42 and the U-shaped plate 43, a first bolt hole 34 is arranged on the concave-convex plugboard 31, a second bolt hole 44 is formed on the U-shaped slot 41 is arranged on the concave-shaped on the concave plugboard 31, the concave-convex slot 41 and the concave-convex slot 41 is matched with the first bolt hole 34 and the first bolt hole 4 is inserted into the concave-shaped slot 4 through the first bolt hole 34 and the first bolt hole 43; the connection mode between every two adjacent shafts is the same as the connection mode of the first shaft 3 and the second shaft 4; the concave-convex plugboard 31 and the rod body are integrally formed, and the T-shaped board 42, the U-shaped board 43 and the rod body are integrally formed; the two-way connecting rod comprises a pair of fixing plates 6, wherein the fixing plates 6 are fixedly connected with every two adjacent rod bodies through second bolts 7; the ends of the concave-convex plugboard 31, the T-shaped board 42 and the U-shaped board 43 are provided with chamfers 8.

The detailed connection means are known in the art, and the following mainly introduces the working principle and process, specifically as follows:

as can be seen from fig. 1 to 7 of the specification, the dummy bar of the present utility model includes a plurality of bars, a dummy bar head 1 and a transition piece 2, wherein the plurality of bars includes a first bar 3 and a second bar 4, the dummy bar head 1 is connected with the transition piece 2, the transition piece 2 is connected with one end of the first bar 3, each two adjacent bars are connected through a connection structure, the connection structure includes a concave-convex inserting plate 31, a concave-convex groove 41 and a plurality of first bolts 5, the connection of the first bar 3 and the second bar 4 is described here as an example, the other end of the first bar 3 is fixedly connected with the concave-convex inserting plate 31, the concave-convex inserting plate 31 is in a shape formed by a T-shaped groove 32 formed on one side of the end face of the first bar 3, and a U-shaped groove 33 formed on the other side, as can be seen from fig. 6, the connection part of the concave-convex inserting plate 31 and the first bar 3 is in non-linear contact; the second shaft 4 is equipped with T template 42 on one side of one end terminal surface, and the opposite side is equipped with U template 43, and the groove that forms between T template 42 and the U template 43 is unsmooth groove 41, unsmooth picture peg 31 can insert unsmooth inslot 41, fixes unsmooth picture peg 31 and the T template 42 and the U template 43 of second shaft 4 through first keyhole 34, second keyhole 44 and first bolt 5. Compared with the prior art, according to the special shape of the concave-convex plugboard 31 and the concave-convex groove 41 in the utility model, as shown in fig. 6, when the concave-convex plugboard 31 can be inserted into the concave-convex groove 41, the contact surfaces of the concave-convex plugboard 31, the T-shaped plate 42 and the U-shaped plate 43 are a plurality of vertical planes, and when the novel multifunctional plug is used, the novel multifunctional plug can bear various forces perpendicular to the plugging direction, and meanwhile, the connection part of the concave-convex plugboard 31 and the end face of the rod body is in an irregular shape, so that the novel plug is stronger and firmer than a straight shape. And similarly, the connection mode between every two adjacent rod bodies is the same as that between the first rod body 3 and the second rod body 4, so that the connection integrity of the dummy rod bodies is ensured.

The concave-convex plugboard 31 and the rod body are integrally formed, the T-shaped plate 42 and the U-shaped plate 43 are integrally formed with the rod body, and the integrally formed components are stronger. Meanwhile, the ends of the concave-convex plugboard 31, the T-shaped board 42 and the U-shaped board 43 are provided with chamfers 8, so that the insertion during installation is facilitated.

In addition, for the stability between the pole body and the pole body, set up fixed plate 6 in pole body junction both sides, through second bolt 7 fixed connection between fixed plate 6 and the every adjacent two pole bodies.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The dummy bar shaft connection structure comprises a plurality of bar shafts, dummy bar heads (1) and transition pieces (2), wherein the plurality of bar shafts comprise a first bar shaft (3) and a second bar shaft (4), every two adjacent bar shafts are connected through the connection structure, the dummy bar shaft connection structure is characterized in that the connection structure comprises a concave-convex inserting plate (31), concave-convex grooves (41) and a plurality of first bolts (5), one end of the first bar shaft (3) is connected with the transition pieces (2) and the dummy bar heads (1) which form the dummy bar, the end face of the other end is fixedly connected with the concave-convex inserting plate (31), the concave-convex inserting plate (31) is in a shape formed after a T-shaped groove (32) is formed in one side of the end face of the first bar shaft (3), a U-shaped groove (33) is formed in the other side, a T-shaped plate (42) is arranged on one side of one end face of the second bar shaft (4), a groove (41) is formed between the T-shaped plate (42) and the U-shaped plate (43), the concave-convex inserting plate (31) is provided with a first concave-convex shape (34) and a second concave-convex shape (43) is formed in the concave-convex shape (43) corresponding to the first concave-convex shape (41) and the second concave-shaped groove (43) and the second concave-convex shape (43) is formed in the concave-convex shape, fixing the concave-convex plugboard (31) with the T-shaped board (42) and the U-shaped board (43) of the second rod body (4) through the first bolt (5); the connection mode between every two adjacent rod bodies is the same as the connection mode of the first rod body (3) and the second rod body (4).

2. The dummy bar shaft connecting structure according to claim 1, wherein the concave-convex inserting plate (31) and the bar shaft are integrally formed, and the T-shaped plate (42) and the U-shaped plate (43) are integrally formed with the bar shaft.

3. A dummy bar shaft connecting structure according to claim 1, characterized by comprising a pair of fixing plates (6), wherein the fixing plates (6) and every two adjacent bars are fixedly connected by a second bolt (7).

4. The dummy bar shaft connecting structure according to claim 1, wherein the ends of the concave-convex inserting plate (31), the T-shaped plate (42) and the U-shaped plate (43) are provided with chamfers (8).