Copper shaft material rod connecting device of protective atmosphere electroslag furnace

Abstract

This invention relates to a copper shaft feed rod connection device for a protective atmosphere electroslag furnace. The device employs a feed rod mandrel positioned at the center of the copper shaft feed rod, with a drive cylinder piston connected to the top of the mandrel. A dummy electrode chuck is fixedly connected to the bottom of the mandrel, and a ceramic ball is disposed within the dummy electrode chuck. The drive cylinder moves the copper shaft feed rod downwards relative to the mandrel, causing the inclined chuck to move relative to the dummy electrode chuck. The inclined surface of the inclined chuck pushes the ceramic ball into the dummy electrode chuck, thus clamping or releasing the copper shaft feed rod. This invention significantly simplifies the connection structure between the cylinder and the copper shaft feed rod, reduces the overall height, and further reduces the equipment failure rate. It solves the technical problems of existing copper shaft feed rod and cylinder mechanisms that require intermediate connectors, increasing the overall height of the device, resulting in complex connection structures, susceptibility to failure, and low equipment reliability.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of gas-protected electroslag furnaces, specifically to a novel copper shaft feed rod connection device for protective atmosphere electroslag furnaces, which is particularly suitable for high-quality special steel smelting scenarios, and especially to a copper shaft feed rod connection device for protective atmosphere electroslag furnaces. Background Technology

[0002] In the existing structural design of the protective atmosphere electroslag furnace, the core shaft of the copper shaft feed rod is connected to the cylinder mechanism through an intermediate connector. The clamping action is achieved by: filling the cylinder mechanism with air, driving the cylinder body of the cylinder mechanism to move up and down. The movement of the cylinder body further drives the intermediate connector, the core shaft of the feed rod and the conductive copper shaft to move synchronously, ultimately achieving the clamping of the bottom dummy electrode and the ceramic ball at the bottom of the conductive copper shaft, thus achieving a clamping effect and ensuring the basic stability of current conduction.

[0003] The existing connection method between the copper shaft feed rod and the cylinder mechanism requires an intermediate connector, which not only increases the overall height of the device but also leads to a complex connection structure, making it prone to failure and further reducing the reliability of the equipment. The existing copper shaft feed rod connection device for protective atmosphere electroslag furnaces has many defects, such as complex connection structure, excessive device height, and high failure rate, and cannot meet the production requirements of large tonnage and high current. Summary of the Invention

[0004] The purpose of this invention is to provide a copper shaft rod connection device for a protective atmosphere electroslag furnace that can ensure the clamping effect between the bottom dummy electrode and the bottom ceramic ball of the conductive copper shaft, reduce the overall height of the device, has a simple connection structure, is not prone to failure, and can adapt to the production needs of large-tonnage, high-current electroslag furnaces.

[0005] To achieve the above objectives, an embodiment of the present invention provides a copper shaft rod connecting device, comprising:

[0006] Copper shaft rod;

[0007] A drive cylinder device is provided, which is located at the top of the copper shaft rod and contains a cylinder piston.

[0008] A feed rod mandrel is located at the center inside the copper shaft feed rod, and a drive cylinder piston is connected to the top of the feed rod mandrel;

[0009] A dummy electrode chuck, the top of which is fixedly connected to the bottom of the material rod spindle, and a ceramic ball is disposed inside the dummy electrode chuck;

[0010] The drive cylinder device drives the copper shaft rod to move downward relative to the rod core axis, which in turn drives the copper shaft inclined chuck to move relative to the dummy electrode chuck.

[0011] The inclined surface of the copper shaft chuck pushes the ceramic ball into the dummy electrode chuck, causing the copper shaft rod to be clamped or released.

[0012] Furthermore, in the copper shaft feed rod connecting device of the protective atmosphere electroslag furnace of the present invention, the copper shaft feed rod further includes:

[0013] A copper shaft top cover is disposed at the upper end of the copper shaft rod;

[0014] A copper shaft base is disposed at the lower end of the copper shaft rod;

[0015] The outer wall of the copper shaft is welded at its upper end to the bottom end of the copper shaft top cover, and at its lower end to the copper shaft base.

[0016] The inner wall of the copper shaft is welded at its upper end to the bottom side of the copper shaft top cover, and at its lower end to the upper side of the copper shaft base.

[0017] The inclined chuck of the copper shaft is disposed on the inner side of the bottom of the copper shaft rod and is fixedly connected to the copper shaft base.

[0018] Furthermore, in the copper shaft feed rod connecting device of the protective atmosphere electroslag furnace of the present invention, the copper shaft water cooling device is provided at the upper end of the outer wall of the copper shaft.

[0019] Furthermore, in the copper shaft feed rod connecting device of the protective atmosphere electroslag furnace of the present invention, the copper shaft water cooling device further includes:

[0020] Two sets of water inlets and outlets are symmetrically and evenly arranged along the circumferential direction on the upper end of the outer wall of the copper shaft, namely the first water inlet, the first water outlet, the second water inlet, and the second water outlet.

[0021] Furthermore, in the copper shaft feed rod connecting device of the protective atmosphere electroslag furnace of the present invention, the driving cylinder device further includes:

[0022] A cylinder top plate, wherein the cylinder top plate is disposed on the top of the drive cylinder device, and the cylinder top plate is provided with a top air port;

[0023] A cylinder base plate is disposed at the bottom of the drive cylinder device, and the cylinder base plate is provided with a bottom air port;

[0024] A cylinder body, the cylinder body being located between the cylinder top plate and the cylinder bottom plate;

[0025] Cylinder piston; the cylinder piston is disposed in the cavity formed between the cylinder top plate and the cylinder bottom plate;

[0026] A fixed base, which connects the drive cylinder device and the copper shaft rod.

[0027] Furthermore, in the copper shaft feed rod connecting device of the protective atmosphere electroslag furnace of the present invention, a certain pressure air is input into the bottom air port, the cylinder piston and the connected feed rod core remain stationary, driving the cylinder top plate, the cylinder bottom plate and the cylinder body to move downward relative to each other, and driving the copper shaft feed rod to move downward relative to the feed rod core, driving the copper shaft inclined chuck to move relative to the dummy electrode chuck, and the inclined surface of the copper shaft inclined chuck pushes the ceramic ball to move into the dummy electrode chuck, realizing the clamping action of the copper shaft feed rod.

[0028] Furthermore, in the copper shaft feed rod connecting device of the protective atmosphere electroslag furnace of the present invention, a certain pressure air is input into the top air port, the cylinder piston and the connected feed rod core remain stationary, driving the cylinder top plate, the cylinder bottom plate and the cylinder body to move upward relative to each other, and driving the copper shaft feed rod to move upward relative to the feed rod core, driving the copper shaft inclined chuck to move relative to the dummy electrode chuck, and the inclined surface of the copper shaft inclined chuck pushes the ceramic ball to move outward of the dummy electrode chuck, realizing the release action of the copper shaft feed rod.

[0029] Furthermore, in the copper shaft feed rod connecting device of the protective atmosphere electroslag furnace of the present invention, the feed rod mandrel further includes:

[0030] The outer wall of the material rod is located outside the material rod mandrel;

[0031] The inner wall of the material rod is provided inside the material rod mandrel;

[0032] The material rod connecting flange connects the material rod mandrel to the cylinder piston.

[0033] Compared with existing technologies, this invention employs a method where a driving cylinder is positioned at the top of the copper shaft feed rod, and a piston is installed within the driving cylinder. A feed rod mandrel is located at the center of the copper shaft feed rod, with the top of the mandrel connected to the driving cylinder piston. A dummy electrode chuck is fixedly connected at its top to the bottom of the mandrel, and a ceramic ball is placed inside the dummy electrode chuck. The driving cylinder drives the copper shaft feed rod to move downwards relative to the mandrel, causing the inclined chuck to move relative to the dummy electrode chuck. The inclined surface of the inclined chuck pushes the ceramic ball into the dummy electrode chuck, thus clamping or releasing the copper shaft feed rod. This invention significantly simplifies the connection structure between the cylinder and the copper shaft feed rod in a protective atmosphere electroslag furnace, reduces the overall height of the furnace, and further reduces equipment failure rates. It solves the problem that existing methods of connecting the copper shaft feed rod and cylinder mechanism require intermediate connectors, which not only increase the overall height of the device but also lead to complex connection structures, susceptibility to failure, and further reduced equipment reliability. The existing copper shaft feed rod connection and cooling device for protective atmosphere electroslag furnaces has many defects, such as complex connection structure, excessive device height, and high failure rate, and cannot meet the technical problems of large tonnage and high current production requirements. Attached Figure Description

[0034] Figure 1 This is the front view of the present invention.

[0035] Figure 2 This is a bottom view of the present invention.

[0036] Figure 3 This is a top view of the present invention.

[0037] Figure 4 for Figure 1 BB section view.

[0038] Figure 5 for Figure 4 DD section view.

[0039] Figure 6 for Figure 1 Sectional view of AA.

[0040] Figure 7 for Figure 6 Enlarged view of position I in the middle.

[0041] Figure 8 for Figure 6 Enlarged view of position II in the middle.

[0042] Figure 9 for Figure 6 Enlarged view of position III.

[0043] Figure 10 for Figure 6 CC section view.

[0044] In the diagram: 1-Copper shaft rod, 11-Copper shaft top cover, 12-Copper shaft base, 13-Copper shaft outer wall, 14-Copper shaft inner wall, 15-Copper shaft oblique clamping ring, 2-Copper shaft water cooling device, 21-First water inlet, 22-First water outlet, 23-Second water inlet, 24-Second water outlet, 3-Drive cylinder device, 31-Cylinder piston, 32-Cylinder top plate, 321-Top air port, 33-Cylinder bottom plate, 331-Bottom air port, 34-Cylinder body, 35-Fixed seat, 4-Rod mandrel, 41-Rod outer wall, 42-Rod inner wall, 43-Rod connecting flange, 5-Dummy electrode chuck, 51-Ceramic ball, 6-Rod mandrel water cooling device. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the various embodiments of this invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this invention to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0046] Embodiments of the present invention relate to a copper shaft feed rod connecting device for a protective atmosphere electroslag furnace, such as... Figures 1-10 As shown, it includes:

[0047] In this embodiment, a copper shaft feed rod 1 is provided in the copper shaft feed rod connecting device of the protective atmosphere electroslag furnace;

[0048] The drive cylinder device 3 is located at the top of the copper shaft rod 1, and the drive cylinder device 3 contains a cylinder piston 31; the drive cylinder device 3 serves to drive the copper shaft rod 1.

[0049] The feed rod mandrel 4 is located inside the center of the copper shaft feed rod 1, and the top of the feed rod mandrel 4 is connected to the drive cylinder piston 31; the cylinder piston 31 drives the feed rod mandrel 4, which serves as a connection.

[0050] The top of the dummy electrode chuck 5 is fixedly connected to the bottom of the material rod spindle 4, and a ceramic ball 51 is provided inside the dummy electrode chuck 5; the dummy electrode chuck 5 is used to grip the electrode.

[0051] The drive cylinder device 3 drives the copper shaft rod 1 to move downward relative to the rod mandrel 4, which in turn drives the copper shaft inclined chuck 15 to move relative to the dummy electrode chuck 5.

[0052] The inclined surface of the copper shaft chuck 15 pushes the ceramic ball 51 into the dummy electrode chuck 5, causing the copper shaft rod 1 to be clamped or released. The rod core 4 is directly connected to the drive cylinder device 3, which greatly simplifies the connection structure between the cylinder and the copper shaft rod, reduces the overall height of the protective atmosphere electroslag furnace, and further reduces the equipment failure rate. It solves the problem that the existing connection method between the copper shaft rod and the cylinder mechanism requires an intermediate connector, which not only increases the overall height of the device but also leads to a complex connection structure, which is prone to failure and further reduces the reliability of the equipment operation. The existing copper shaft rod connection and cooling device for protective atmosphere electroslag furnaces has many defects such as complex connection structure, excessive device height, and high failure rate, and cannot meet the technical problems of large tonnage and high current production requirements.

[0053] To achieve the aforementioned technical effects, the copper shaft feed rod connecting device for the protective atmosphere electroslag furnace in this embodiment, such as... Figures 1-10 As shown, the copper shaft rod 1 also includes:

[0054] The copper shaft top cover 11 is disposed on the upper end of the copper shaft rod 1;

[0055] The copper shaft base 12 is located at the lower end of the copper shaft rod 1;

[0056] The upper end of the outer wall 13 of the copper shaft is welded to the bottom end of the top cover 11 of the copper shaft, and the lower end of the outer wall 13 of the copper shaft is welded to the base 12 of the copper shaft.

[0057] The upper end of the inner wall 14 of the copper shaft is welded to the bottom side of the top cover 11 of the copper shaft, and the lower end of the inner wall 14 of the copper shaft is welded to the upper side of the base 12 of the copper shaft; the top cover 11 of the copper shaft, the base 12 of the copper shaft, the outer wall 13 of the copper shaft and the inner wall 14 of the copper shaft constitute the structure of the copper shaft rod 1.

[0058] The inclined chuck 15 of the copper shaft is set on the inner side of the bottom of the copper shaft rod 1 and is fixedly connected to the copper shaft base 12.

[0059] To achieve the aforementioned technical effects, the copper shaft feed rod connecting device for the protective atmosphere electroslag furnace in this embodiment, such as... Figures 1-10 As shown, a copper shaft water cooling device 2 is installed at the upper end of the outer wall 11 of the copper shaft. The copper shaft water cooling device 2 is used to cool the copper shaft rod 1.

[0060] To achieve the aforementioned technical effects, the copper shaft feed rod connecting device for the protective atmosphere electroslag furnace in this embodiment, such as... Figures 1-10 As shown, the copper shaft water cooling device 2 also includes:

[0061] Two sets of water inlets and outlets are symmetrically and evenly arranged along the circumferential direction on the upper end of the outer wall 11 of the copper shaft, namely the first water inlet 21, the first water outlet 22, the second water inlet 23, and the second water outlet 24.

[0062] To achieve the aforementioned technical effects, the copper shaft feed rod connecting device for the protective atmosphere electroslag furnace in this embodiment, such as... Figures 1-10 As shown, the drive cylinder device 3 also includes:

[0063] The cylinder top plate 32 is disposed on the top of the drive cylinder device 3, and the cylinder top plate 32 is provided with a top air port 321;

[0064] The cylinder base plate 33 is located at the bottom of the drive cylinder device 3, and the cylinder base plate 33 is provided with a bottom air port 331;

[0065] The cylinder body 34 is located between the cylinder top plate 32 and the cylinder bottom plate 33;

[0066] A cylinder piston 31 is installed in the cavity formed between the cylinder top plate 32 and the cylinder bottom plate 33;

[0067] The fixed seat 35 connects the drive cylinder device 3 and the copper shaft rod 1. The cylinder top plate 32, cylinder bottom plate 33, cylinder body 34, cylinder piston 31 and fixed seat 35 constitute the drive cylinder device 3.

[0068] To achieve the aforementioned technical effects, the copper shaft feed rod connecting device for the protective atmosphere electroslag furnace in this embodiment, such as... Figures 1-10 As shown, a certain pressure of air is input into the bottom air port 331. The cylinder piston 31 and the connected material rod spindle 4 remain stationary, driving the cylinder top plate 32, cylinder bottom plate 33, and cylinder body 34 to move downward relative to each other. This causes the copper shaft material rod 1 to move downward relative to the material rod spindle 4, which in turn causes the copper shaft inclined chuck 15 to move relative to the dummy electrode chuck 5. The inclined surface of the copper shaft inclined chuck 15 pushes the ceramic ball 51 into the dummy electrode chuck 5, thus achieving the clamping action of the copper shaft material rod 1.

[0069] To achieve the aforementioned technical effects, the copper shaft feed rod connecting device for the protective atmosphere electroslag furnace in this embodiment, such as... Figures 1-10 As shown, a certain pressure of air is input into the top air port 321. The cylinder piston 31 and the connected material rod spindle 4 remain stationary, driving the cylinder top plate 32, cylinder bottom plate 33, and cylinder body 34 to move upward relative to each other. This causes the copper shaft material rod 1 to move upward relative to the material rod spindle 4, which in turn causes the copper shaft inclined chuck 15 to move relative to the dummy electrode chuck 5. The inclined surface of the copper shaft inclined chuck 15 pushes the ceramic ball 51 to move outward from the dummy electrode chuck 5, thus realizing the release action of the copper shaft material rod 1.

[0070] To achieve the aforementioned technical effects, the copper shaft feed rod connecting device for the protective atmosphere electroslag furnace in this embodiment, such as... Figures 1-10 As shown, the feed rod spindle 4 also includes:

[0071] The outer wall 41 of the feed rod is provided outside the feed rod spindle 4;

[0072] The inner wall 42 of the feed rod is provided inside the feed rod mandrel 4;

[0073] The material rod connecting flange 43 connects the material rod mandrel 4 to the cylinder piston 31. The outer wall 41, the inner wall 42, and the material rod connecting flange 43 constitute the main structure of the material rod mandrel 4.

[0074] In the copper shaft feed rod connecting device of the protective atmosphere electroslag furnace in this embodiment, a certain pressure air is input into the bottom air port 331. The cylinder piston 31 and the connected feed rod core 4 remain stationary, driving the cylinder top plate 32, cylinder bottom plate 33, and cylinder body 34 to move downward relative to each other. This causes the copper shaft feed rod 1 to move downward relative to the feed rod core 4, and causes the copper shaft inclined chuck 15 to move relative to the dummy electrode chuck 5. The inclined surface of the copper shaft inclined chuck 15 pushes the ceramic ball 51 into the dummy electrode chuck 5, realizing the clamping action of the copper shaft feed rod 1. Conversely, a certain pressure air is input into the top air port 321 to realize the loosening action of the copper shaft feed rod 1.

[0075] In this embodiment, the copper shaft feed rod connecting device of the protective atmosphere electroslag furnace adopts a feed rod mandrel 4 directly connected to the drive cylinder device 3, eliminating intermediate connecting structural components. When performing the clamping action of the copper shaft feed rod 1, the feed rod mandrel 4 is directly connected to the drive cylinder device 3, which greatly simplifies the connection structure between the cylinder and the copper shaft feed rod, reduces the overall height of the protective atmosphere electroslag furnace, and further reduces the equipment failure rate. It solves the problem that the existing connection method between the copper shaft feed rod and the cylinder mechanism requires intermediate connecting components, which not only increases the overall height of the device but also leads to a complex connection structure, which is prone to failure and further reduces the reliability of equipment operation. The existing copper shaft feed rod connecting and cooling device of the protective atmosphere electroslag furnace has many defects such as complex connection structure, excessive device height, and high failure rate, and cannot meet the technical problems of large tonnage and high current production requirements.

[0076] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of the present invention.

Claims

1. A copper shaft feed rod connecting device for a protective atmosphere electroslag furnace, characterized in that, include: Copper shaft rod (1); A drive cylinder device (3) is provided on the top of the copper shaft rod (1), and a cylinder piston (31) is provided inside the drive cylinder device (3). Material rod mandrel (4), the material rod mandrel (4) is located at the center inside the copper shaft material rod (1), and the top of the material rod mandrel (4) is connected to the drive cylinder piston (31). A dummy electrode chuck (5) is provided with ceramic balls (51) inside the dummy electrode chuck (5), the top of the dummy electrode chuck (5) is fixedly connected to the bottom of the material rod spindle (4). The driving cylinder device (3) drives the copper shaft rod (1) to move downward relative to the rod core (4), and drives the copper shaft inclined chuck (15) to move relative to the dummy electrode chuck (5); The inclined surface of the copper shaft chuck (15) pushes the ceramic ball (51) into the dummy electrode chuck (5), causing the copper shaft rod (1) to be clamped or released.

2. The copper shaft feed rod connecting device for a protective atmosphere electroslag furnace according to claim 1, characterized in that, The copper shaft rod (1) also includes: A copper shaft top cover (11) is provided on the upper end of the copper shaft rod (1); A copper shaft base (12) is provided at the lower end of the copper shaft rod (1); The outer wall of the copper shaft (13) is welded at the upper end to the bottom end of the copper shaft top cover (11) and at the lower end to the copper shaft base (12). The inner wall of the copper shaft (14) is welded at the upper end to the bottom side of the copper shaft top cover (11), and the lower end of the inner wall of the copper shaft (14) is welded to the upper side of the copper shaft base (12). The inclined chuck (15) of the copper shaft is disposed on the inner side of the bottom of the copper shaft rod (1) and is fixedly connected to the copper shaft base (12).

3. The copper shaft feed rod connecting device for a protective atmosphere electroslag furnace according to claim 2, characterized in that, A water-cooling device (2) for the copper shaft is provided at the upper end of the outer wall (11) of the copper shaft.

4. The copper shaft feed rod connecting device for a protective atmosphere electroslag furnace according to claim 3, characterized in that, The copper shaft water cooling device (2) also includes: Two sets of water inlets and outlets are symmetrically and evenly arranged along the circumferential direction on the upper end of the outer wall (11) of the copper shaft, namely the first water inlet (21), the first water outlet (22), the second water inlet (23), and the second water outlet (24).

5. The copper shaft feed rod connecting device for a protective atmosphere electroslag furnace according to claim 1, characterized in that, The drive cylinder device (3) further includes: Cylinder top plate (32), the cylinder top plate (32) is disposed on the top of the drive cylinder device (3), and the cylinder top plate (32) is provided with a top air port (321). Cylinder base plate (33), the cylinder base plate (33) is disposed at the bottom of the drive cylinder device (3), and the cylinder base plate (33) is provided with a bottom air port (331). Cylinder body (34), the cylinder body (34) is located between the cylinder top plate (32) and the cylinder bottom plate (33); Cylinder piston (31); The cylinder piston (31) is disposed in the cavity formed between the cylinder top plate (32) and the cylinder bottom plate (33). The fixed seat (35) connects the drive cylinder device (3) and the copper shaft rod (1).

6. The copper shaft feed rod connecting device for a protective atmosphere electroslag furnace according to claim (5), characterized in that, A certain pressure of air is input into the bottom air port (331). The cylinder piston (31) and the connected material rod spindle (4) remain stationary, driving the cylinder top plate (32), the cylinder bottom plate (33), and the cylinder body (34) to move downward relative to each other, and driving the copper shaft material rod (1) to move downward relative to the material rod spindle (4), driving the copper shaft inclined chuck (15) to move relative to the dummy electrode chuck (5). The inclined surface of the copper shaft inclined chuck (15) pushes the ceramic ball (51) to move into the dummy electrode chuck (5), thereby realizing the clamping action of the copper shaft material rod (1).

7. The copper shaft feed rod connecting device for a protective atmosphere electroslag furnace according to claim 5, characterized in that, A certain pressure of air is input into the top air port (321). The cylinder piston (31) and the connected material rod spindle (4) remain stationary, driving the cylinder top plate (32), the cylinder bottom plate (33), and the cylinder body (34) to move upward relative to each other, and driving the copper shaft material rod (1) to move upward relative to the material rod spindle (4), driving the copper shaft inclined chuck (15) to move relative to the dummy electrode chuck (5). The inclined surface of the copper shaft inclined chuck (15) pushes the ceramic ball (51) to move outward from the dummy electrode chuck (5), thereby realizing the release action of the copper shaft material rod (1).

8. The copper shaft feed rod connecting device for a protective atmosphere electroslag furnace according to claim 1, characterized in that, The feed bar mandrel (4) also includes: The outer wall (41) of the material rod is provided outside the material rod mandrel (4); The inner wall (42) of the material rod is provided inside the material rod mandrel (4); The material rod connecting flange (43) connects the material rod spindle (4) and the cylinder piston (31).

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