Graphite electrode contact mounting structure

Abstract

The utility model discloses a graphite electrode joint installation structure in the technical field of graphite electrodes, which comprises a graphite electrode and a joint, the graphite electrode is provided with a fixed sleeve, the joint is sleeved with a positioning sleeve, the surface of the positioning sleeve is provided with external threads, the upper half part of the inner wall of the fixed sleeve is provided with internal threads, and the inner wall of the fixed sleeve is provided with external threads. A mounting hole is formed in the bottom of the fixing sleeve, the inner wall of the lower half portion of the mounting hole is arranged to be a first inclined face, a first arc-shaped fixing plate and a second arc-shaped fixing plate are arranged in the fixing sleeve, and the inner wall of the first arc-shaped fixing plate and the inner wall of the second arc-shaped fixing plate are arranged to be second inclined faces. The upper portions of the side faces of the first arc-shaped fixing plate and the second arc-shaped fixing plate are fourth inclined faces, the upper portion width of the fourth inclined face arranged on the fixing ring is smaller than the lower portion width, the first arc-shaped fixing plate and the second arc-shaped fixing plate stably fix the fixing ring, and rapid fixing of the connector is completed.

Description

Technical Field

[0001] This utility model relates to the field of graphite electrode technology, specifically to a graphite electrode connector mounting structure. Background Technology

[0002] In steelmaking using graphite electrodes, the installation and fixation of the graphite electrode joints are crucial and directly affect electric arc furnace steelmaking production. For example, in the graphite electrode joint anti-loosening structure disclosed in Chinese patent literature (application number: CN202121590606.7), a fixing pin is used to fix the electrode body and prevent it from falling off. However, the fixing pins are attached to the bottom of the adhesive layer by the melting of the adhesive when heated, thus fixing the electrode body. If the adhesive continues to be heated after positioning the fixing pins or during the fixing process, the adhesive will melt, affecting the stability of the fixation of the electrode body.

[0003] Therefore, we propose a graphite electrode connector mounting structure. Utility Model Content

[0004] The purpose of this invention is to provide a graphite electrode connector mounting structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a graphite electrode connector mounting structure, comprising a graphite electrode and a connector, wherein a fixing sleeve is provided on the graphite electrode, a positioning sleeve is fitted on the connector, the positioning sleeve has an external thread on its surface, the upper half of the inner wall of the fixing sleeve has an internal thread, the bottom of the fixing sleeve has a mounting hole, the lower half of the inner wall of the mounting hole is configured as a first inclined surface, a first arc-shaped fixing plate and a second arc-shaped fixing plate are provided inside the fixing sleeve, the inner walls of the first arc-shaped fixing plate and the second arc-shaped fixing plate are both configured as a second inclined surface, the upper part of the side surface of the first arc-shaped fixing plate and the second arc-shaped fixing plate is configured as a third inclined surface, a fixing ring is provided on the connector, and the side surface of the fixing ring is configured as a fourth inclined surface.

[0006] Preferably, the upper width of the fourth inclined surface is smaller than the lower width, and the bottom end of the fixing ring is chamfered.

[0007] Preferably, the upper part of the graphite electrode is provided with a positioning groove, and the side of the fixing sleeve is provided with a positioning ring that cooperates with the positioning groove.

[0008] Preferably, the bottom of the inner wall of the positioning sleeve is configured as an inclined surface that cooperates with the second inclined surface.

[0009] Preferably, the lower part of the mounting hole connector is configured as an inclined surface that mates with the first inclined surface.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The external thread on the surface of the positioning sleeve connects with the internal thread inside the fixing sleeve. When the positioning sleeve is tightened, the bottom of the inner wall of the positioning sleeve contacts the upper outer side of the first arc-shaped fixing plate and the second arc-shaped fixing plate. By cooperating with the second inclined surface, the first arc-shaped fixing plate and the second arc-shaped fixing plate are squeezed. When the first arc-shaped fixing plate and the second arc-shaped fixing plate are squeezed, the fixing ring on the joint is pressed, and the joint is quickly fixed.

[0012] 2. After being compressed, the second inclined surface on the inner wall of the first and second arc-shaped fixing plates cooperates to form a conical inclined surface to fix the fixing ring. The upper width of the fourth inclined surface on the fixing ring is smaller than the lower width. The first and second arc-shaped fixing plates complete the rapid fixing of the joint by stably fixing the fixing ring. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the graphite electrode of this utility model;

[0015] Figure 3 This is a schematic diagram of the connector fixing structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the arc-shaped fixing plate structure of this utility model.

[0017] In the figure: 1. Graphite electrode; 2. Fixing sleeve; 3. Connector; 4. Positioning sleeve; 5. External thread; 6. Internal thread; 7. Mounting hole; 8. First inclined surface; 9. Positioning ring; 10. Positioning groove; 11. First arc-shaped fixing plate; 12. Second arc-shaped fixing plate; 121. Second inclined surface; 122. Third inclined surface; 13. Fixing ring; 131. Fourth inclined surface. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4This utility model provides a technical solution: a graphite electrode connector installation structure, including a graphite electrode 1 and a connector 3. A fixing sleeve 2 is provided on the graphite electrode 1, and a positioning sleeve 4 is fitted on the connector 3. The surface of the positioning sleeve 4 is provided with external threads 5. The upper half of the inner wall of the fixing sleeve 2 is provided with internal threads 6. The bottom of the fixing sleeve 22 is provided with an installation hole 7, and the lower half of the inner wall of the installation hole 7 is provided with a first inclined surface 8. A first arc-shaped fixing plate 11 and a second arc-shaped fixing plate 12 are provided inside the fixing sleeve 2. The inner walls of the first arc-shaped fixing plate 11 and the second arc-shaped fixing plate 12 are both provided with second inclined surfaces 121. The upper part of the side of the first arc-shaped fixing plate 11 and the second arc-shaped fixing plate 12 is provided with a third inclined surface 122. A fixing ring 13 is provided on the connector 3, and the side of the fixing ring 13 is provided with a fourth inclined surface 131. To install the connector 3, the positioning sleeve 4 is fitted onto the connector 3, and the connector 3 passes through the fixing sleeve 4. The first arc-shaped fixing plate 11 and the second arc-shaped fixing plate 12 inside the sleeve 2 are connected to the mounting hole 7. Press the connector 3 down until it stops pressing. Move the positioning sleeve 4 so that the external thread 5 on the surface of the positioning sleeve 4 connects with the internal thread 6 inside the fixing sleeve 2. Tighten the positioning sleeve 4. During the tightening process, the bottom of the inner wall of the positioning sleeve 4 contacts the upper outer side of the first arc-shaped fixing plate 11 and the second arc-shaped fixing plate 12. Through cooperation with the second inclined surface 122, the first arc-shaped fixing plate 11 and the second arc-shaped fixing plate 12 are squeezed. The first arc-shaped fixing plate 11 and the second arc-shaped fixing plate 12 are squeezed, pressing the fixing ring 13 on the connector 3 and quickly fixing the connector 3. When the connector 3 is to be disassembled, rotate the positioning sleeve 4 in the opposite direction to disassemble the positioning sleeve 4. Move the connector 3 directly upward to quickly disassemble the connector 3.

[0020] Reference embodiment: The upper width of the fourth inclined surface 131 is smaller than the lower width, and the bottom end of the fixing ring 13 is chamfered. After the first arc-shaped fixing plate 11 and the second arc-shaped fixing plate 12 are compressed, the second inclined surface 121 on their inner walls cooperate to form a conical inclined surface to fix the fixing ring 13. The upper width of the fourth inclined surface 131 on the fixing ring 13 is smaller than the lower width. The first arc-shaped fixing plate 11 and the second arc-shaped fixing plate 12 fix the fixing ring 13 stably, thereby completing the rapid fixing of the connector 3.

[0021] Reference embodiment: A positioning groove 10 is provided on the upper part of the graphite electrode 1, and a positioning ring 9 that cooperates with the positioning groove 10 is provided on the side of the fixing sleeve 2. The fixing sleeve 2 is fixed on the graphite motor, which facilitates the fixing sleeve 2 to fix the connector, and the fixing sleeve 2 is installed and fixed during the graphite electrode production process.

[0022] Reference embodiment: The bottom of the inner wall of the positioning sleeve 4 is set as an inclined surface that cooperates with the second inclined surface 121. The positioning sleeve 4 moves downward, and the inclined surface set at the bottom of the positioning sleeve 4 presses against the third inclined surface 122 set on the first arc-shaped fixing plate 11 and the second arc-shaped fixing plate 12, thereby pressing the first arc-shaped fixing plate 11 and the second arc-shaped fixing plate 12 and fixing the joint 3.

[0023] Reference embodiment: The lower part of the connector 3 is configured as an inclined surface that mates with the first inclined surface 8. The lower part of the connector 3 is in complete contact with the first inclined surface 8. The inclined surface configured at the lower part of the connector 3 facilitates the connector passing between the first arc-shaped plate 11 and the second arc-shaped fixing plate 12.

[0024] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A graphite electrode joint mounting structure comprising a graphite electrode (1) and a joint (3), characterized by: The graphite electrode (1) is provided with a fixing sleeve (2), the joint (3) is provided with a positioning sleeve (4), the surface of the positioning sleeve (4) is provided with external threads (5), the inner wall of the fixing sleeve (2) is provided with internal threads (6) in the upper half, the bottom of the fixing sleeve (2) is provided with a mounting hole (7), the inner wall of the lower half of the mounting hole (7) is provided with a first inclined surface (8), the fixing sleeve (2) is provided with a first arc-shaped fixing plate (11) and a second arc-shaped fixing plate (12), the inner wall of the first arc-shaped fixing plate (11) and the second arc-shaped fixing plate (12) is provided with a second inclined surface (121), the side surface of the upper part of the first arc-shaped fixing plate (11) and the second arc-shaped fixing plate (12) is provided with a third inclined surface (122), the joint (3) is provided with a fixing ring (13), and the side surface of the fixing ring (13) is provided with a fourth inclined surface (131).

2. The graphite electrode joint mounting structure according to claim 1, characterized by: The upper part of the fourth inclined surface (131) is smaller in width than the lower part, and the bottom end of the fixing ring (13) is chamfered.

3. The graphite electrode joint mounting structure according to claim 1, characterized by: The upper part of the graphite electrode (1) is provided with a positioning groove (10), and the side surface of the fixing sleeve (2) is provided with a positioning ring (9) matched with the positioning groove (10).

4. The graphite electrode joint mounting structure according to claim 1, characterized by: The inner wall of the bottom of the positioning sleeve (4) is provided with an inclined surface matched with the second inclined surface (121).

5. The graphite electrode joint mounting structure according to claim 1, characterized by: The lower part of the mounting hole joint (3) is provided with an inclined surface matched with the first inclined surface (8).

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