Water-cooled cable replacement support

Abstract

The utility model relates to the technical field of cable replacement devices, in particular to a water-cooled cable replacement support. A water-cooled cable replacement support comprises a supporting frame and an operation platform. The supporting frame comprises a central shaft and a supporting assembly with two side supporting pieces. The center shaft is horizontally arranged in the first direction. Each side supporting piece is fixedly connected with the central shaft through an extension rod; wherein the edges of the two sides of the center shaft are each provided with at least one first through hole, each extension rod is provided with a plurality of second through holes in the second direction, and the extension rods penetrate through the corresponding first through holes and the corresponding second through holes through bolt connecting pieces to be detachably connected with the center shaft. The working platform is connected with the supporting frame through the connecting arm. According to the replacement support, the center shaft and the two side supporting pieces are matched together, the replacement support can be hung on the electrode cross arm, the structure is simple, a maintenance springboard does not need to be built temporarily, the replacement support is used in cooperation with one electrode cross arm, and interference between the replacement support and the other two electrode cross arms of the refining furnace is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cable replacement devices, and particularly relates to a water-cooled cable replacement support. Background Technique

[0002] The LF-200t refining furnace in the steelmaking plant adopts the form of electrode rotation and double heating stations. Among them, the water-cooled cable of the refining furnace is an important device connecting the refining furnace and the transformer, mainly playing the role of transmitting and controlling electric energy. The water-cooled cable serves as the carrier of the internal voltage and current of the refining furnace, and its performance directly affects the stable operation and service life of the refining furnace. The water-cooled cable plays a crucial role in the short-circuit power supply system of the refining furnace. During the smelting process of the refining furnace, it is in a high-temperature and dust environment for a long time. During the rotation and up-and-down movement of the three-phase electrodes, the water-cooled cable rotates or moves up and down together, resulting in problems such as twisting, bending of the water-cooled cable, loosening of the connecting bolts (once loosened, it will cause a short circuit, form an electric arc, and burn out the cable joint), and mutual friction between the cables leading to water leakage of the cable, reducing its service life.

[0003] Once the cable is damaged, it must be replaced. However, the special installation structure of the water-cooled cable makes it very difficult and dangerous to remove and install the cable. Especially at the connection of the end of the electrode cross-arm, 8 ∮20*200 double-headed bolts are used to connect with the cable. The electrode cross-arm is supported in a cantilever manner, and there is no suitable maintenance platform nearby. It is necessary to set up a maintenance springboard at this position in advance, and the setting up of the maintenance springboard also needs to be coordinated with the lifting height of the other two electrodes. When the cable is replaced, the electrode cross-arm is not in the low position. To prevent sudden sliding of the electrode during the maintenance process and cause accidents and achieve safety purposes, it is necessary to support and fix the electrode, which is very troublesome and time-consuming, resulting in the preparation and finishing work occupying more than about 50% of the entire operation time. Based on this, there is an urgent need for a replacement support to assist in the replacement of the water-cooled cable. Content of the Utility Model

[0004] In view of this, the utility model provides a water-cooled cable replacement support, which can at least solve the problem of inconvenient construction of the existing water-cooled cable replacement support.

[0005] A water-cooled cable replacement support of the present utility model includes: a support frame and an operation platform. The support frame includes a central shaft and a support assembly. The central shaft is horizontally arranged in the first direction. The support assembly has two side support members on both sides of the central shaft. Each side support member has a horizontally arranged extension rod and a support rod extending downward from the extension rod. Each side support member is fixedly connected to the central shaft through the extension rod; at least one first through hole is respectively arranged on the opposite two side edges of the central shaft, and a plurality of second through holes are arranged on the extension rod in the second direction. Each extension rod is detachably connected to the central shaft through a bolt connector passing through the corresponding first through hole and second through hole. The operation platform is horizontally arranged beside the support frame and is connected to the support frame through a connecting arm; it is used to support the staff.

[0006] In some embodiments, the replacement support includes at least two support assemblies arranged at intervals in the first direction, and the support rods of the two side support members of each support assembly are correspondingly arranged in the second direction; the two correspondingly arranged support rods in the second direction can be fixedly connected through a pin shaft and are clamped outside the electrode cross arm.

[0007] In some embodiments, a plurality of pin holes penetrating in the second direction are distributed along the vertical direction of each support rod for the pin shaft to penetrate into.

[0008] In some embodiments, the operation platform is arranged at the front end and below the central shaft in the first direction, and the connecting arm is inclined so that there is a preset distance between the operation platform and the support frame in the horizontal direction.

[0009] In some embodiments, a safety fence is arranged on the periphery of the operation platform, and an opening is arranged on the side of the safety fence facing the support frame.

[0010] In some embodiments, the height of the safety fence is 0.9 - 1.2 m.

[0011] In some embodiments, at least two support assemblies are respectively located on the front and rear sides of the central shaft in the first direction.

[0012] In some embodiments, the distance between the two correspondingly arranged support rods in the second direction is 15 - 20 mm greater than the width of the electrode cross arm in the second direction.

[0013] In some embodiments, a lifting lug is installed at a position near the operation platform on the upper part of the central shaft.

[0014] In some embodiments, the pin shaft is locked with an opening pin.

[0015] The beneficial effects of the present utility model are as follows: By jointly cooperating with the central shaft and two side support members, the present utility model can be suspended on the electrode cross arm. The structure is simple, and there is no need to temporarily build a maintenance gangplank. Moreover, the replacement bracket of the present application is used in cooperation with one electrode cross arm, avoiding interference with the other two electrode cross arms of the refining furnace. And through the configuration of the extension rod, the first through hole and multiple second through holes, the connection position between the side support member and the central shaft can be adaptively adjusted according to the width of the electrode cross arm, suitable for electrode cross arms of different specifications and sizes. The working platform is connected to the support frame through the connecting arm and is used to support the staff. When replacing the water-cooled cable, the staff stands on the working platform to disassemble or install multiple double-headed bolts connecting the water-cooled cable to the refining furnace. The present application utilizes the principle of the lever, with a simple structure, firm and reliable, convenient to manufacture, quick to install, efficient in use, reducing the maintenance workload and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other embodiments can be obtained based on these drawings.

[0017] Figure 1 The front view of the water-cooled cable replacement bracket provided by an embodiment of the present utility model;

[0018] Figure 2 The structural schematic diagram of the pin shaft provided by an embodiment of the present utility model;

[0019] Figure 3 The partial cross-sectional view of the water-cooled cable replacement bracket provided by an embodiment of the present utility model;

[0020] Figure 4 The top view of the water-cooled cable replacement bracket provided by an embodiment of the present utility model;

[0021] Figure 5 The usage state diagram of the water-cooled cable replacement bracket provided by an embodiment of the present utility model.

[0022] Description of the reference numerals:

[0023] 1, central shaft; 2, support rod; 3, working platform; 4, safety fence; 5, pin shaft; 6, extension rod; 7, connecting arm; 8, electrode cross arm; 9, first through hole; 10, electrode column; 11, pin hole; 12, split pin; 13, water-cooled cable; 14, double-headed bolt; 15, second through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further elaborates on the embodiments of the present utility model in detail in conjunction with specific embodiments and with reference to the accompanying drawings.

[0025] It should be noted that all the expressions using "first" and "second" in the embodiments of the present utility model are for distinguishing two entities or parameters with the same name but different identities. It can be seen that "first" and "second" are only for the convenience of expression and should not be construed as limitations on the embodiments of the present utility model. This will not be elaborated one by one in the subsequent embodiments.

[0026] The embodiment of the present application provides a water-cooled cable replacement bracket, which includes a support frame and an operation platform 3. The support frame includes a central shaft 1 and a support assembly. The central shaft 1 is horizontally arranged in a first direction. As Figure 1 shown, the first direction is the left-right direction shown in the figure. As Figure 3 shown, the support assembly has two side support members on both sides of the central shaft 1. Each side support member is L-shaped and has a horizontally arranged extension rod 6 and a support rod 2 vertically extending downward from the extension rod 6. Each side support member is fixedly connected to the central shaft 1 through the extension rod 6. The two side support members and the central shaft 1 cooperate together to be able to hang on the electrode cross arm 8. The structure is simple, and there is no need to temporarily build a maintenance springboard. Moreover, the replacement bracket of the present application is used in cooperation with one electrode cross arm 8, avoiding interference with the other two electrode cross arms 8 of the refining furnace. Among them, as Figure 4 shown, at least one first through hole 9 is respectively arranged on the opposite side edges of the central shaft 1. A plurality of second through holes 15 are arranged on the extension rod 6 in a second direction. Each extension rod 6 is detachably connected to the central shaft 1 through a bolt connector passing through the corresponding first through hole 9 and second through hole 15, so that the distance between the support rods 2 of the two side support members is adjustable. Specifically, the central shaft 1 can adopt an I-shaped steel, the extension rod 6 can be inserted between the two flange plates of the I-shaped steel, and the second direction is perpendicular to the first direction in the horizontal plane. In addition, two first through holes 9 can be arranged along the first direction at the corresponding positions of each side edge of the central shaft 1 and an extension rod 6. The second through holes 15 on each extension rod 6 can be arranged in two rows at intervals in the first direction, so that there are two connection points when the extension rod 6 is connected to the central shaft 1, preventing the extension rod 6 and the support rod 2 from shifting relative to the central shaft 1 in the horizontal direction and improving the connection stability of the side support member.

[0027] Through the combined use of the extension rod 6, the first through hole 9, and the multiple second through holes 15, the present application can adaptively adjust the connection positions of each side support member to the central axis 1 according to the width of the electrode cross arm 8, so that the distance between the two side support members is adjustable to accommodate electrode cross arms 8 of different specifications and sizes. The operation platform 3 is horizontally arranged beside the support frame. The operation platform 3 is connected to the support frame through a connecting arm 7 and is used to support the staff. When replacing the water-cooled cable 13, the staff stands on the operation platform 3 to disassemble or install the multiple double-headed bolts 14 connecting the water-cooled cable 13 to the refining furnace. The present application utilizes the principle of a lever, with a simple structure, firm reliability, convenient manufacturing, quick installation, high efficiency in use, reduced maintenance workload, and improved work efficiency.

[0028] In some embodiments, the replacement bracket includes at least two support components arranged at intervals in the first direction to improve the stability of the support, and the support rods 2 of the two side support members of each support component are correspondingly arranged in the second direction; the two support rods 2 corresponding in the second direction can be fixedly connected through a pin shaft 5 and are clamped outside the electrode cross arm 8 (as Figure 2 and Figure 3 shown). Specifically, as Figure 5 shown, the electrode cross arm 8 is supported by the electrode column 10. By fixing the support rod 2 and the pin shaft 5 to the electrode cross arm 8, the present application has a simple structure and a light weight, and by using the pin shaft 5 to abut against the lower part of the electrode cross arm 8, the connection stability of the bracket can be enhanced to ensure the safety of the staff.

[0029] In some embodiments, each support rod 2 is distributed with a plurality of pin holes 11 penetrating in the second direction along the vertical direction for the pin shaft 5 to penetrate. The setting of the plurality of pin holes 11 can select and insert the corresponding pin shaft 5 according to the thickness of the electrode cross arm 8. Specifically, the distance between adjacent two pin holes 11 can be set to 5 - 10 mm to prevent the distance between the pin shaft 5 and the upper electrode cross arm 8 from being too large and affecting its structural stability. In addition, the distance between the lowermost pin hole 11 and the bottom end of the support rod 2 also does not exceed 5 - 10 mm.

[0030] In some embodiments, the operation platform 3 is arranged at the front end and below the first direction of the central axis 1, and the connecting arm 7 is inclined so that the operation platform 3 has a preset distance from the support frame in the horizontal direction, facilitating the staff to operate on the operation platform 3. Preferably, the inclination angle of the connecting arm 7 is 70 degrees.

[0031] In some embodiments, a safety fence 4 is arranged on the periphery of the operation platform 3, and an opening is arranged on the side of the safety fence 4 facing the support frame. As Figure 4 shown, the safety fence 4 surrounds on three sides and has an opening on the right side, improving the safety of the staff during operation.

[0032] In some embodiments, the height of the safety fence 4 is 0.9 to 1.2 m to achieve a better protection effect. Preferably, the height of the safety fence 4 is 1.05 meters.

[0033] In some embodiments, at least two support components are respectively located on the front and rear sides of the first direction of the central axis 1.

[0034] In some embodiments, the distance between two corresponding support rods 2 in the second direction is 15 - 20 mm greater than the width of the electrode cross arm 8 in the second direction, facilitating the support frame to be lapped on the electrode cross arm 8.

[0035] In some embodiments, a lifting lug (not shown in the figure) is installed at the upper part of the central axis 1 near the operation platform, facilitating the crane to control the support.

[0036] In some embodiments, the pin shaft 5 is locked with an opening pin 12. The opening pin 12 is reliable in operation and convenient to disassemble.

[0037] A method for using a water-cooled cable replacement support provided by an embodiment of the present application is as follows:

[0038] S1, adjust the horizontal distance between the support rod 2 and the central axis 1 according to the width of the corresponding electrode cross arm 8;

[0039] S2, use a crane to lift the replacement support to a predetermined position on the electrode cross arm 8;

[0040] S3, insert each pin shaft 5 into the corresponding pin hole 11 to connect the two corresponding support rods 2 in the second direction. At this time, the pin shaft 5, the support rod 2, and the central axis 1 are clamped outside the electrode cross arm 8.

[0041] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0042] The above-described embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A water-cooled cable replacement bracket, characterized in that: include: A support frame, the support frame comprising a central axis (1) and a support assembly, the central axis (1) being arranged horizontally along a first direction; the support assembly having two side support members located on both sides of the central axis (1), each side support member having a horizontally arranged extension rod (6) and a support rod (2) extending downwardly from the extension rod (6), each side support member being connected and fixed to the central axis (1) via the extension rod (6); at least one first through hole (9) is respectively arranged on opposite side edges of the central axis (1), the extension rod (6) being arranged with a plurality of second through holes (15) along a second direction, each extension rod (6) being detachably connected to the central axis (1) via a bolt connector passing through a corresponding first through hole (9) and a second through hole (15); A working platform (3), the working platform (3) being horizontally arranged beside the supporting frame, the working platform (3) being connected to the supporting frame via a connecting arm (7); and being used to support a worker.

2. The water-cooled cable replacement bracket according to claim 1, characterized in that: The replacement bracket comprises at least two support assemblies spaced apart in a first direction, and the support rods (2) of the two side support members of each support assembly are correspondingly arranged in a second direction; the two corresponding support rods (2) in the second direction can be fixedly connected by a pin (5) and clamped on the outer side of the electrode cross arm (8).

3. The water-cooled cable replacement bracket according to claim 2, characterized in that: Each support rod (2) is provided with a plurality of pin holes (11) distributed along the vertical direction and extending through the second direction, for allowing the pin shaft (5) to penetrate therethrough.

4. The water-cooled cable replacement bracket according to claim 1, characterized in that: The working platform (3) is arranged at the front end and below the central axis (1) in the first direction, and the connecting arm (7) is arranged at an angle so that the working platform (3) and the supporting frame have a preset spacing in the horizontal direction.

5. The water-cooled cable replacement bracket according to claim 1, characterized in that: A safety fence (4) is provided on the periphery of the working platform (3), and an opening is provided on a side of the safety fence (4) facing the support frame.

6. The water-cooled cable replacement bracket according to claim 5, characterized in that: The height of the safety fence (4) is 0.9-1.2 m.

7. The water-cooled cable replacement bracket according to claim 2, characterized in that: At least two of the support components are respectively located on the front and rear sides of the central axis (1) in the first direction.

8. The water-cooled cable replacement bracket according to claim 2, characterized in that: The distance between the two corresponding support rods (2) in the second direction is greater than the width of the electrode cross arm (8) in the second direction by 15 to 20 mm.

9. The water-cooled cable replacement bracket according to claim 1, characterized in that: A lifting lug is installed on the upper part of the central shaft (1) near the working platform (3).

10. The water-cooled cable replacement bracket according to claim 2, characterized in that: The pin shaft (5) is locked with a cotter pin (12).

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