Cross arm of electric arc furnace

Abstract

The utility model relates to the technical field of electric arc furnace cross arms, and discloses an electric arc furnace cross arm, which comprises a cross arm main body, the upper end of the cross arm main body is fixedly connected with a filter box, and the inside of the filter box is fixedly connected with a sealing gasket. According to the electric arc furnace cross arm, through the arrangement of the filter assembly and the sealing gasket, when the cover plate seals the filter box, the sealing gasket and the cover plate extrude, so that the sealing gasket is tightly attached to the filter box and the cover plate, it is avoided that water leaks out of the interior of the filter box in the using process, when the device is used, a filter screen can filter entering cold water, and the service life of the device is prolonged. When too many impurities exist on a filter screen, a cover plate is opened, a spring is extruded for resetting, a filter frame pops up from the interior of a filter box, then a worker can quickly take the filter screen out of the filter box, the filter screen is cleaned, and the situation that the water cooling channel is blocked by the impurities, and the electrode hoop is locally heated and damaged is avoided; therefore, the service life of the electrode hoop is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric arc furnace cross arms, in particular to an electric arc furnace cross arm. Background Art

[0002] The conductive cross arm is a key component of an electric arc furnace, supporting and clamping the electrodes. It conducts electrical energy from the transformer's secondary short circuit network through the electrodes into the furnace, generating a powerful arc current within the charge and heating the smelt. The conductive cross arm consists of a main body, an electrode chuck, and an electrode clamp. The electrode chuck and clamp are located at the front end of the main body and hold the electrode in place, ensuring it remains precisely aligned with the center circle during the lifting and lowering process.

[0003] A conductive cross arm disclosed in publication number CN204948391U includes a conductive cross arm body, an electrode chuck, and an electrode clamp. The conductive cross arm body is provided with a water inlet chamber and a water return chamber. The electrode chuck and the electrode clamp are located at the front end of the conductive cross arm body. The electrode chuck is provided with a plurality of straight holes, the ends of which are connected to the water inlet chamber and the water return chamber, respectively. Compared with the prior art, the electrode chuck of the utility model has the following advantages: during processing, only straight holes need to be drilled in the electrode chuck, and no process holes need to be processed or sealed. This simplifies the processing process, reduces water leakage, ensures product quality and safe production, and improves the cooling effect due to the increased flow of cooling water in the electrode chuck.

[0004] Although the above patent simplifies the processing technology, reduces water leakage, ensures product quality and safe production, and improves the cooling effect due to the increased flow of cooling water in the electrode clamp; however, the device lacks a water filtration mechanism. When water cooling is performed, impurities in the water will stick to the inside of the electrode clamp, causing the motor clamp to heat up, thereby affecting the service life of the electrode clamp.

[0005] Therefore, it is necessary to invent an electric arc furnace cross arm to solve the above problems. Utility Model Content

[0006] (1) Technical problems solved

[0007] The technical problem solved by the utility model is to provide an electric arc furnace cross arm with high practicality, simple operation and relatively simple structure, which solves the problem of lack of water filtering mechanism proposed in the above background technology. During water cooling, impurities in the water will stick to the inside of the electrode clamp, causing the motor clamp to heat up, thereby affecting the service life of the electrode clamp.

[0008] (2) Technical solution

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: an electric arc furnace cross arm, including a cross arm main body, the upper end of the cross arm main body is fixedly connected to a filter box, the interior of the filter box is fixedly connected to a sealing gasket, the interior of the filter box is slidably connected to three groups of filter components, the three groups of filter components each include a filter frame, a filter mesh and four groups of extrusion springs, the bottom surface of the cross arm main body is fixedly connected to two groups of auxiliary components, the two groups of auxiliary components each include a first mounting plate, a first telescopic rod, a first buffer spring, a double-headed hydraulic rod, a second buffer spring, a second telescopic rod and a second mounting plate, the interior of the cross arm main body is fixedly connected to an extrusion component, the extrusion component includes an oil cylinder and a connecting plate, one end of the connecting plate is fixedly connected to an electrode clamp.

[0010] As a further solution of the present invention, the three groups of filter frames are all slidably connected to the interior of the filter box, the interior of the three groups of filter frames is fixedly connected with a filter net, and two groups of extrusion springs are fixedly connected on both sides of the three groups of filter frames, and the extrusion springs can pop the filter frames out of the filter box.

[0011] As a further solution of the present invention, the first mounting plate is fixedly connected to the bottom surface of the cross arm body, one end of the first mounting plate is fixedly connected to the first telescopic rod, the outer side of the first telescopic rod is fixedly connected to the first buffer spring, one end of the first buffer spring is fixedly connected to the double-headed hydraulic rod, one side of the double-headed hydraulic rod is fixedly connected to the second buffer spring, the interior of the second buffer spring is fixedly connected to the second telescopic rod, one end of the second telescopic rod is fixedly connected to the second mounting plate, the second mounting plate is connected to the external support column, and the second buffer spring is used to buffer vibration, thereby improving the stability of the device.

[0012] As a further solution of the present invention, the oil cylinder is fixedly connected to the inside of the cross arm body, and one end of the oil cylinder is fixedly connected to a connecting plate, which is used for connection.

[0013] As a further solution of the present invention, an electrode clamp is fixedly connected to the outer side of the cross arm body, a water inlet hose is fixedly connected to the surface of the electrode clamp, and a water outlet hose is fixedly connected to the other side surface of the electrode clamp, which is used to discharge water.

[0014] As a further solution of the present invention, one end of the water inlet hose is fixedly connected to one side of the filter box, the other end of the filter box is fixedly connected to the water inlet pipe, and the other end of the water inlet pipe is fixedly connected to the water outlet pipe, and the water inlet pipe is used to inlet water.

[0015] As a further solution of the present invention, four groups of limit blocks are fixedly connected to the surface of the filter box, and limit holes are opened inside the four groups of limit blocks. Two groups of limit pins are plug-connected inside the four groups of limit holes, and the outer sides of the two groups of limit pins are slidably connected with a cover plate, which is used for sealing.

[0016] (3) Beneficial effects

[0017] The utility model provides an electric arc furnace cross arm, which has the following beneficial effects:

[0018] 1. The arc furnace cross arm is provided with a filter assembly and a sealing gasket. When the cover plate seals the filter box, the sealing gasket and the cover plate are squeezed, so that the sealing gasket fits tightly with the filter box and the cover plate to prevent water from leaking from the inside of the filter box during use. When the device is in use, the filter screen can filter the incoming cold water and filter out impurities in the water. When there are too many impurities on the filter screen, the cover plate is opened and the squeezing spring is reset to pop the filter frame out of the filter box, so that the staff can quickly take the filter screen out of the filter box to clean the filter screen, thereby preventing impurities from clogging the water cooling channel and causing local heat damage to the electrode clamp, thereby extending the service life of the electrode clamp.

[0019] 2. The electric arc furnace cross arm, through the setting of auxiliary components, when in use, the first mounting block is installed on the cross arm body, the second mounting plate is connected to the external support column, and the double-headed hydraulic rod pushes the first telescopic rod and the second telescopic rod to move to provide additional support for the cross arm body. At the same time, the cross arm body will generate certain vibrations when in use. The first buffer spring and the second buffer spring can absorb the vibrations generated by the cross arm body when in use, thereby improving the stability of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0022] Figure 3 This is a schematic diagram of the auxiliary component structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the extrusion component of the utility model.

[0024] In the figure: 1. Cross arm body; 2. Filter box; 3. Sealing gasket; 4. Filter assembly; 401. Filter frame; 402. Filter screen; 403. Extrusion spring; 5. Auxiliary assembly; 501. First mounting plate; 502. First telescopic rod; 503. First buffer spring; 504. Double-headed hydraulic rod; 505. Second buffer spring; 506. Second telescopic rod; 507. Second mounting plate; 6. Extrusion assembly; 601. Oil cylinder; 602. Connecting plate; 7. Electrode chuck; 8. Electrode clamp; 9. Water inlet hose; 10. Water outlet hose; 11. Water inlet pipe; 12. Water outlet pipe; 13. Limit block; 14. Limit pin; 15. Cover plate. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 4 The utility model provides a technical solution: an electric arc furnace cross arm, comprising a cross arm body 1, the upper end of the cross arm body 1 is fixedly connected to a filter box 2, the interior of the filter box 2 is fixedly connected to a sealing gasket 3, the interior of the filter box 2 is slidably connected to three groups of filter components 4, the three groups of filter components 4 each include a filter frame 401, a filter screen 402 and four groups of extrusion springs 403, the bottom surface of the cross arm body 1 is fixedly connected to two groups of auxiliary components 5, the two groups of auxiliary components 5 each include a first mounting plate 501, a first telescopic rod 502, a first buffer spring 503, a double-headed hydraulic rod 504, a second buffer spring 505, a second telescopic rod 506 and a second mounting plate 507, the interior of the cross arm body 1 is fixedly connected to an extrusion component 6, the extrusion component 6 includes an oil cylinder 601 and a connecting plate 602, and one end of the connecting plate 602 is fixedly connected to an electrode clamp 7;

[0027] See also Figure 2 The three groups of filter frames 401 are all slidably connected to the interior of the filter box 2. The interior of the three groups of filter frames 401 is fixedly connected with a filter screen 402. Both sides of the three groups of filter frames 401 are fixedly connected with two groups of extrusion springs 403. The extrusion springs 403 can pop the filter frames 401 out of the filter box 2.

[0028] See also Figure 3, the first mounting plate 501 is fixedly connected to the bottom surface of the cross arm body 1, one end of the first mounting plate 501 is fixedly connected to the first telescopic rod 502, the outer side of the first telescopic rod 502 is fixedly connected to the first buffer spring 503, one end of the first buffer spring 503 is fixedly connected to the double-headed hydraulic rod 504, one side of the double-headed hydraulic rod 504 is fixedly connected to the second buffer spring 505, the interior of the second buffer spring 505 is fixedly connected to the second telescopic rod 506, one end of the second telescopic rod 506 is fixedly connected to the second mounting plate 507, the second mounting plate 507 is connected to the external support column, the second buffer spring 505 is used to buffer vibration, thereby improving the stability of the device;

[0029] See also Figure 4 , the oil cylinder 601 is fixedly connected to the inside of the cross arm body 1, and one end of the oil cylinder 601 is fixedly connected to a connecting plate 602, which is used for connection;

[0030] See also Figure 1 The outer side of the cross arm body 1 is fixedly connected to an electrode clamp 8, the surface of the electrode clamp 8 is fixedly connected to a water inlet hose 9, and the other side surface of the electrode clamp 8 is fixedly connected to a water outlet hose 10, which is used to discharge water;

[0031] See also Figure 1 One end of the water inlet hose 9 is fixedly connected to one side of the filter box 2, the other end of the filter box 2 is fixedly connected to the water inlet pipe 11, and the other end of the water inlet pipe 11 is fixedly connected to the water outlet pipe 12, and the water inlet pipe 11 is used to inlet water;

[0032] See also Figure 2 Four groups of limit blocks 13 are fixedly connected to the surface of the filter box 2. Limit holes are provided inside the four groups of limit blocks 13. Two groups of limit pins 14 are plugged into the inside of the four groups of limit holes. The outer sides of the two groups of limit pins 14 are slidably connected with a cover plate 15, which is used for sealing.

[0033] In the present invention, the working steps of the device are as follows:

[0034] The first step: when the cover plate 15 seals the filter box 2, the sealing gasket 3 is squeezed against the cover plate 15, so that the sealing gasket 3 is tightly fitted with the filter box 2 and the cover plate 15 to prevent water from leaking from the inside of the filter box 2 during use. When the device is in use, the filter screen 402 can filter the incoming cold water and filter out impurities in the water. When there are too many impurities on the filter screen 402, the cover plate 15 is opened, and the squeezing spring 403 is reset to pop the filter frame 401 out of the filter box 2, so that the staff can quickly take the filter screen 402 out of the filter box 2, thereby cleaning the filter screen 402, avoiding impurities clogging the water cooling channel and causing the electrode clamp 8 to be locally heated and damaged, thereby extending the service life of the electrode clamp 8;

[0035] Step 2: When in use, install the first mounting plate 501 on the cross arm body 1, connect the second mounting plate 507 to the external support column, and the double-headed hydraulic rod 504 pushes the first telescopic rod 502 and the second telescopic rod 506 to move to provide additional support for the cross arm body 1. At the same time, the cross arm body 1 will produce certain vibrations when in use. The first buffer spring 503 and the second buffer spring 505 can absorb the vibrations generated by the cross arm body 1 when in use, thereby improving the stability of the device when in use.

[0036] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art can clearly understand the details of its power mechanism, power supply system, and control system on the premise that they understand the principle of the above-mentioned utility model. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be implemented by simple programming by those skilled in the art.

[0037] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0038] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric arc furnace cross arm, comprising a cross arm body (1), characterized in that: The upper end of the cross arm body (1) is fixedly connected to a filter box (2), the interior of the filter box (2) is fixedly connected to a sealing gasket (3), the interior of the filter box (2) is slidably connected to three groups of filter assemblies (4), each of the three groups of filter assemblies (4) comprising a filter frame (401), a filter screen (402) and four groups of extrusion springs (403), the bottom surface of the cross arm body (1) is fixedly connected to two groups of auxiliary assemblies (5), each of the two groups of auxiliary assemblies (5) comprising a first mounting plate (501), a first telescopic rod (502), a first buffer spring (503), a double-headed hydraulic rod (504), a second buffer spring (505), a second telescopic rod (506) and a second mounting plate (507), the interior of the cross arm body (1) is fixedly connected to an extrusion assembly (6), the extrusion assembly (6) comprising an oil cylinder (601) and a connecting plate (602), one end of the connecting plate (602) being fixedly connected to an electrode chuck (7).

2. The electric arc furnace cross arm according to claim 1, characterized in that: The three groups of filter frames (401) are all slidably connected to the interior of the filter box (2); the interior of the three groups of filter frames (401) is fixedly connected with a filter screen (402); and both sides of the three groups of filter frames (401) are fixedly connected with two groups of extrusion springs (403).

3. The electric arc furnace cross arm according to claim 1, characterized in that: The first mounting plate (501) is fixedly connected to the bottom surface of the cross arm body (1); one end of the first mounting plate (501) is fixedly connected to the first telescopic rod (502); the outer side of the first telescopic rod (502) is fixedly connected to the first buffer spring (503); one end of the first buffer spring (503) is fixedly connected to the double-headed hydraulic rod (504); one side of the double-headed hydraulic rod (504) is fixedly connected to the second buffer spring (505); the interior of the second buffer spring (505) is fixedly connected to the second telescopic rod (506); one end of the second telescopic rod (506) is fixedly connected to the second mounting plate (507); and the second mounting plate (507) is connected to an external support column.

4. The electric arc furnace cross arm according to claim 1, characterized in that: The oil cylinder (601) is fixedly connected to the interior of the cross arm body (1), and one end of the oil cylinder (601) is fixedly connected to a connecting plate (602).

5. The electric arc furnace cross arm according to claim 1, characterized in that: An electrode clamp (8) is fixedly connected to the outside of the cross arm body (1), a water inlet hose (9) is fixedly connected to the surface of the electrode clamp (8), and a water outlet hose (10) is fixedly connected to the other side surface of the electrode clamp (8).

6. The electric arc furnace cross arm according to claim 5, characterized in that: One end of the water inlet hose (9) is fixedly connected to one side of the filter box (2), the other end of the filter box (2) is fixedly connected to the water inlet pipe (11), and the other end of the water inlet pipe (11) is fixedly connected to the water outlet pipe (12).

7. The electric arc furnace cross arm according to claim 1, characterized in that: Four groups of limit blocks (13) are fixedly connected to the surface of the filter box (2), and the interiors of the four groups of limit blocks (13) are provided with limit holes. The interiors of the four groups of limit holes are plug-connected with two groups of limit pins (14), and the outer sides of the two groups of limit pins (14) are slidably connected with cover plates (15).

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