Quick change mechanism for dummy bar head and transition section of flexible dummy bar

Abstract

The utility model relates to the technical field of metallurgical machinery, and discloses a quick-change mechanism for a dummy bar head and a transition section of a flexible dummy bar, which comprises a dummy bar body. The dummy bar body is composed of a dummy bar head, a first arc-shaped base plate, an inner hexagon screw, an elastic pad, a first connecting shaft, protective caps, a head chain link, a common chain link, a transition chain link, a second arc-shaped base plate and a second connecting shaft, the first connecting shaft is installed at the connecting position of the head chain link and the dummy bar head, and the protective caps are installed at the two ends of the first connecting shaft. The dummy bar head can be quickly separated from the head chain link by disassembling the first connecting shaft and the protective cap, the purpose of quickly replacing the dummy bar head is achieved, if casting blanks with different sections need to be produced, the dummy bar head and the transition section, namely the transition chain link, need to be quickly replaced, and when the transition chain link is replaced, the dummy bar head can be quickly replaced. And the transition chain link can be quickly separated from the dummy bar body only by dismounting the second connecting shaft and the protective cap, so that the purpose of quickly replacing the transition section is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical machinery technology, specifically, it relates to a quick-change mechanism for a flexible dummy bar dummy head and transition section. Background Technology

[0002] According to their structure, dummy bars can be divided into rigid dummy bars and flexible (chain-type) dummy bars. The dummy bar is an important piece of equipment on the continuous casting production line. Its function is to block the bottom of the crystallizer during casting, causing the molten steel to solidify at the head of the dummy bar. Through the traction of the straightening machine's drive rollers, the billet is moved downwards. After the dummy bar exits the straightening machine, the billet is separated from the dummy bar head, at which point normal casting begins.

[0003] In continuous casting, the dummy ingot needs to be fed and pulled intermittently. The dummy ingot head is intermittently subjected to the molten steel, protective slag, and cooling water, which can cause it to burn and be damaged, thus requiring replacement. However, the current replacement time for the dummy ingot head and transition section is relatively long, resulting in low overall production efficiency of the continuous casting machine.

[0004] In view of this, this utility model proposes a quick-change mechanism for a flexible siphon rod, siphon head, and transition section to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A quick-change mechanism for a flexible derrick head and transition section includes a derrick body, which comprises a derrick head, a first arc-shaped pad, an internal hexagonal screw and a spring washer, a first connecting shaft, a protective cap, a head link, a general link, a transition link, a second arc-shaped pad, and a second connecting shaft. The first connecting shaft is installed at the connection between the head link and the derrick head. The protective cap is installed at both ends of the first connecting shaft. The second connecting shaft is installed at the connection between the transition link and the general link. The protective cap is installed at both ends of the second connecting shaft.

[0007] In a preferred embodiment of this utility model, the derrick head is connected to the end of the head link, the head link is connected to the general link, and the head link is installed between the derrick head and the general link.

[0008] In a preferred embodiment of the present invention, the transition link is connected at the end of the general link, and the general link is installed between the head link and the transition link.

[0009] In a preferred embodiment of this utility model, the first arc-shaped pad is installed on the spindle head by an internal hexagonal screw and a spring washer.

[0010] In a preferred embodiment of this utility model, the second arc-shaped pad is installed on the transition link by means of an internal hexagonal screw and a spring washer.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] This utility model has a simple structure and allows for rapid replacement, effectively shortening the time required to replace the dummy bar and transition section, and improving the overall production efficiency of the continuous casting machine. When replacing the dummy bar, only the first connecting shaft and protective cap need to be removed to quickly detach the dummy bar from the head chain link, achieving the purpose of rapid dummy bar replacement. If it is necessary to produce billets with different cross-sections, the dummy bar and transition section need to be replaced quickly. The transition section is the transition chain link. When replacing the transition chain link, only the second connecting shaft and protective cap need to be removed to quickly detach the transition chain link from the dummy bar body, achieving the purpose of rapid transition section replacement, thereby realizing the rapid replacement of the dummy bar and transition section of the flexible dummy bar.

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the main structure of a quick-change mechanism for a flexible siphon rod, siphon head, and transition section according to the present invention.

[0016] Figure 2 This is a top view schematic diagram of the quick-change mechanism for a flexible siphon rod, siphon head, and transition section according to this utility model.

[0017] In the diagram: 1. Die rod body; 2. Die head; 3. First arc-shaped pad; 4. Socket head screw and spring washer; 5. First connecting shaft; 6. Protective cap; 7. Head link; 8. General link; 9. Transition link; 10. Second arc-shaped pad; 11. Second connecting shaft. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0019] like Figures 1 to 2 As shown

[0020] A quick-change mechanism for a flexible derrick head and transition section includes a derrick body 1, which comprises a derrick head 2, a first arc-shaped pad 3, hexagonal socket screws and spring washers 4, a first connecting shaft 5, a protective cap 6, a head link 7, a general link 8, a transition link 9, a second arc-shaped pad 10, and a second connecting shaft 11. The first connecting shaft 5 is installed at the connection between the head link 7 and the derrick head 2, and the protective cap 6 is installed at both ends of the first connecting shaft 5. When replacing the derrick head 2, simply remove the first connecting shaft 5 and the protective cap 6 to quickly disengage the derrick head 2 from the head link 7, achieving the purpose of quick replacement of the derrick head 2. The first arc-shaped pad 3 can appropriately adjust the angle between the derrick head 2 and the head link 7 to facilitate the smooth entry and exit of the derrick head 2 into and out of the crystallizer lower opening. The first arc-shaped pad 3 is installed by hexagonal socket screws and spring washers 4. On the ingot head 2, the second connecting shaft 11 is installed at the connection between the transition link 9 and the general link 8. The protective cap 6 is installed at both ends of the second connecting shaft 11. The ingot head 2 is connected to the end of the head link 7. The head link 7 is connected to the general link 8. The head link 7 is installed between the ingot head 2 and the general link 8. The transition link 9 is connected to the end of the general link 8. The general link 8 is installed between the head link 7 and the transition link 9. If it is necessary to produce castings with different cross sections, the ingot head 2 and the transition section need to be quickly replaced. The transition section is the transition link 9. When replacing the transition link 9, it is only necessary to remove the second connecting shaft 11 and the protective cap 6 so that the transition link 9 can be quickly separated from the ingot rod body 1, achieving the purpose of quickly replacing the transition section. The second arc-shaped pad 10 is installed on the transition link 9 by the internal hexagon screw and the spring washer 4.

[0021] The implementation principle of the quick-change mechanism for the flexible derrick head and transition section in this embodiment is as follows:

[0022] During continuous casting, the dummy ingot needs to be fed and pulled intermittently. The dummy ingot head 2 is intermittently subjected to the scorching hot steel, protective slag, and cooling water, which can cause it to burn and be damaged, requiring rapid replacement. When replacing the dummy ingot head 2, simply remove the first connecting shaft 5 and the protective cap 6 to quickly separate the dummy ingot head 2 from the head chain link 7, achieving the purpose of rapid replacement of the dummy ingot head 2. The first arc-shaped pad 3 can appropriately adjust the angle between the dummy ingot head 2 and the head chain link 7 to facilitate the smooth entry and exit of the dummy ingot head 2 into and out of the lower opening of the crystallizer. If it is necessary to produce billets with different cross sections, the dummy ingot head 2 and the transition section, namely the transition chain link 9, need to be quickly replaced. When replacing the transition chain link 9, simply remove the second connecting shaft 11 and the protective cap 6 to quickly separate the transition chain link 9 from the dummy ingot rod body 1, achieving the purpose of rapid replacement of the transition section.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in sequences other than those illustrated or described herein.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-change mechanism for a flexible derrick head and transition section, comprising a derrick body (1), characterized in that, The derrick body (1) is composed of a derrick head (2), a first arc-shaped pad (3), an internal hexagon screw and a spring washer (4), a first connecting shaft (5), a protective cap (6), a head link (7), a general link (8), a transition link (9), a second arc-shaped pad (10), and a second connecting shaft (11). The first connecting shaft (5) is installed at the connection between the head link (7) and the derrick head (2). The protective cap (6) is installed at both ends of the first connecting shaft (5). The second connecting shaft (11) is installed at the connection between the transition link (9) and the general link (8). The protective cap (6) is installed at both ends of the second connecting shaft (11).

2. The quick-change mechanism for the flexible derrick head and transition section according to claim 1, characterized in that, The derrick head (2) is connected to the end of the head link (7), the head link (7) is connected to the general link (8), and the head link (7) is installed between the derrick head (2) and the general link (8).

3. The quick-change mechanism for the flexible derrick head and transition section according to claim 1, characterized in that, The transition link (9) is connected at the end of the general link (8), which is installed between the head link (7) and the transition link (9).

4. The quick-change mechanism for the flexible derrick head and transition section according to claim 1, characterized in that, The first arc-shaped pad (3) is installed on the spindle head (2) by an internal hex screw and a spring washer (4).

5. The quick-change mechanism for the flexible derrick head and transition section according to claim 1, characterized in that, The second arc-shaped pad (10) is installed on the transition link (9) by means of an internal hex screw and a spring washer (4).

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