Lightning arrester core fixing device

Abstract

The utility model discloses a lightning arrester core fixing device, and relates to the technical field of lightning arresters, in particular to a lightning arrester core fixing device which comprises a bottom plate and a top plate, stand columns are arranged on the two sides between the bottom plate and the top plate, a bottom linear module is installed on the upper surface of the bottom plate, and a top linear module is installed on the top face of the top plate. A movable vertical plate is installed between the top linear module and the bottom linear module, and a movable plate bearing seat is installed on the outer side of the movable vertical plate. According to the lightning arrester core body fixing device, the linear module, the movable vertical plate and the movable plate rotating shaft are arranged in a matched mode, so that the lightning arrester core body fixing device has the effect that the structural strength can be kept no matter what length the lightning arrester core body is clamped, and the movable vertical plate, the movable plate rotating shaft, a compression spring and a movable plate positioning sleeve are arranged in a matched mode; the lightning arrester core fixing device has the effects that the efficiency is high, and the tool and the lightning arrester are easily butted.

Description

Technical Field

[0001] This utility model relates to the field of surge arrester technology, specifically to a surge arrester core fixing device. Background Technology

[0002] A surge arrester is an electrical device used to protect electrical equipment from high transient overvoltages and limit follow current duration and amplitude. The surge arrester core is its key component. During the surge arrester manufacturing process, fibers are often used to wrap the surge arrester core to enhance insulation performance and mechanical strength. This process requires fixing and rotating the surge arrester core. Because different electrical equipment has different parameters and operating environments, the surge arresters required also vary, resulting in different outer diameters and lengths of the surge arrester cores that the factory needs to wrap. Current technology generally uses the extension and retraction of a cylinder piston rod to adapt to different lengths. The surge arrester core is pushed by a piston rod to directly fit the positioning fixture onto the end of the surge arrester core. If the surge arrester core is relatively short, the piston rod has to be extended a long way. At this time, the structural rigidity is insufficient and it is easy to shake, resulting in uneven fiber winding. If the shaking is severe, the surge arrester core may fall off. When the positioning fixture is directly pushed by the cylinder to dock with the surge arrester core, since the surge arrester core is straightened by the worker and then docked with the positioning fixture automatically pushed out by the cylinder, it is easy to fail to dock. Moreover, the speed at which the piston rod extends cannot be fast. This not only results in low efficiency, but also requires the worker to hold the surge arrester core for a long time, which is labor-intensive. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a surge arrester core fixing device, which solves the problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a surge arrester core fixing device, comprising a base plate and a top plate, with columns on both sides between the base plate and the top plate. A bottom linear module is mounted on the upper surface of the base plate, and a top linear module is mounted on the top surface of the top plate. A movable plate is installed between the top linear module and the bottom linear module. A movable plate bearing seat is mounted on the outer side of the movable plate. A movable plate shaft, which is inserted into the movable plate and rotatable, is installed inside the movable plate bearing seat. A compression spring and a movable plate positioning sleeve are sleeved on the outer surface of the movable plate shaft located inside the movable plate. A fixed plate is fixedly mounted on the inner side of the column away from the movable plate. A fixed plate bearing seat is mounted on the outer side of the fixed plate. A fixed plate shaft, which is inserted into the fixed plate and rotatable, is installed inside the fixed plate bearing seat. A fixed plate positioning sleeve is sleeved on one end of the fixed plate shaft located inside the fixed plate. A servo motor for driving the fixed plate shaft to rotate is mounted on the outer side of the column. A surge arrester core is disposed between the fixed plate positioning sleeve and the movable plate positioning sleeve.

[0007] Preferably, both the movable and fixed uprights are installed vertically and parallel to each other, and the number of movable and fixed rotating shafts are the same, their positions correspond one-to-one, and they are in a horizontal state.

[0008] Preferably, the top linear module and the bottom linear module have the same structure and operate synchronously. When the linear module is working, it can drive the movable upright plate to move left and right to change its distance from the fixed upright plate.

[0009] Preferably, the movable plate shaft is a stepped shaft with a larger outer end and a smaller inner end. The compression spring and the movable plate positioning sleeve are both sleeved on the outer surface of the inner small shaft. One end of the compression spring rests on the shaft shoulder and the other end rests on the end face of the movable plate positioning sleeve. The movable plate positioning sleeve is pushed outward by the elastic force of the compression spring. A baffle plate is fixedly installed on the inner end face of the movable plate shaft by a countersunk screw to prevent the movable plate positioning sleeve from falling off. The baffle plate can be removed by unscrewing the countersunk screw and then the movable plate positioning sleeve can be replaced.

[0010] Preferably, the moving plate positioning sleeve includes a sliding sleeve, an extended sleeve, and a positioning ring. The sliding sleeve is in clearance fit with the moving plate shaft and can slide left and right under force. The inner side of the extended sleeve protrudes outward and is spaced a certain distance from the end face of the moving plate shaft. The positioning ring is in clearance fit with the end of the surge arrester core.

[0011] Preferably, one end of the positioning sleeve is clearance-fitted with the end of the surge arrester core, and the other end is sleeved on the end of the rotating shaft of the positioning plate and fixed by the surrounding screws. The positioning sleeve can be removed and replaced by loosening the screws.

[0012] This utility model provides a surge arrester core fixing device, which has the following advantages:

[0013] 1. This surge arrester core fixing device, through the coordinated arrangement of linear modules, movable upright plates, and rotating shafts, enables the surge arrester core fixing device to maintain structural strength regardless of the length of the surge arrester core being clamped. The rotating shaft is mounted on the movable upright plate and driven left and right by two linear modules at the bottom and top to change the clamping distance. Because the combined strength of the two linear modules and the movable upright plate is very high, the strength remains high regardless of the position of the left and right movement. Therefore, regardless of the length of the surge arrester core being clamped, the structural strength can be maintained, thus preventing the surge arrester core from shaking.

[0014] 2. The surge arrester core fixing device, through the coordinated arrangement of the movable upright plate, the rotating shaft of the movable plate, the compression spring and the positioning sleeve of the movable plate, achieves high efficiency and easy docking of the fixture with the surge arrester. Since the worker only needs to slide the positioning sleeve of the movable plate a short distance to manually guide the surge arrester core into the positioning sleeve, docking is convenient. Finally, the inward movement of the movable upright plate can simultaneously press all the surge arrester cores together, which is very efficient. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the three-dimensional view of this utility model;

[0016] Figure 2 This is a structural schematic diagram of a cross-sectional view of the present invention;

[0017] Figure 3 This is a structural schematic diagram of the first enlarged cross-sectional view of the present invention;

[0018] Figure 4 This is a structural schematic diagram of the second enlarged sectional view of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the moving plate positioning sleeve of this utility model.

[0020] In the diagram: 1. Base plate; 2. Top plate; 3. Column; 4. Bottom linear module; 5. Top linear module; 6. Movable upright plate; 7. Moving plate bearing seat; 8. Moving plate shaft; 9. Compression spring; 10. Moving plate positioning sleeve; 1001. Sliding sleeve; 1002. Outer sleeve; 1003. Positioning ring; 11. Fixed upright plate; 12. Fixed plate bearing seat; 13. Fixed plate shaft; 14. Fixed plate positioning sleeve; 15. Servo motor; 16. Surge arrester core; 17. Baffle plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: a surge arrester core fixing device for fixing and rotating the surge arrester core to wind fibers around its outer surface, including a bottom plate 1 and a top plate 2, the bottom plate 1 and the top plate 2 being parallel vertically, with columns 3 arranged on both sides between the bottom plate 1 and the top plate 2, a bottom straight module 4 installed on the upper surface of the bottom plate 1, a top straight module 5 installed on the top surface of the top plate 2, a movable upright plate 6 installed between the top straight module 5 and the bottom straight module 4, a movable plate bearing seat 7 installed on the outer side of the movable upright plate 6, and a movable plate shaft 8 that passes through the movable upright plate 6 and is rotatable is installed inside the movable plate bearing seat 7, the movable plate shaft 8 being located inside the movable upright plate 6. A compression spring 9 and a moving plate positioning sleeve 10 are fitted onto the outer surface of the side. The moving plate shaft 8 is a stepped shaft with a larger outer end and a smaller inner end. Both the compression spring 9 and the moving plate positioning sleeve 10 are fitted onto the outer surface of the inner small shaft. One end of the compression spring 9 rests on the shaft shoulder, and the other end rests on the end face of the moving plate positioning sleeve 10. The moving plate positioning sleeve 10 is pushed outward by the elastic force of the compression spring 9. A baffle 17 is fixedly installed on the inner end face of the moving plate shaft 8 by a countersunk screw to prevent the moving plate positioning sleeve 10 from falling off. The baffle 17 can be removed by unscrewing the countersunk screw, and then the moving plate positioning sleeve 10 can be replaced. A fixed upright plate 11 is fixedly installed on the inner side of the column 3 away from the movable upright plate 6. The top straight module 5 and The bottom linear module 4 has the same structure and operates synchronously. When the linear module is working, it can drive the movable upright plate 6 to move left and right to change its distance from the fixed upright plate 11. A fixed plate bearing seat 12 is installed on the outer side of the fixed upright plate 11. A fixed plate rotating shaft 13 that passes through the fixed upright plate 11 and can rotate is installed inside the fixed plate bearing seat 12. A fixed plate positioning sleeve 14 is sleeved on one end of the fixed plate rotating shaft 13 located on the inner side of the fixed upright plate 11. A servo motor 15 that drives the fixed plate rotating shaft 13 to rotate is installed on the outer side of the column 3. A surge arrester core 16 is set between the fixed plate positioning sleeve 14 and the movable plate positioning sleeve 10. The movable upright plate 6 and the fixed upright plate 11 are both installed vertically and are parallel to each other. The number of movable plate rotating shafts 8 and fixed plate rotating shafts 13 are the same and their positions correspond one-to-one and they are in a horizontal state. The movable plate positioning sleeve 10 includes a sliding sleeve 1001, an extension sleeve 1002 and a positioning ring 1003. The sliding sleeve 1001 is in clearance fit with the movable plate rotating shaft 8 and can slide left and right under force. The inner side of the extension sleeve 1002 protrudes outward and is provided with a certain distance from the end face of the movable plate rotating shaft 8. The positioning ring 1003 is in clearance fit with the end of the surge arrester core 16. One end of the fixed plate positioning sleeve 14 is in clearance fit with the end of the surge arrester core 16, and the other end is sleeved on the end of the fixed plate rotating shaft 13 and fixed by the surrounding screws. The fixed plate positioning sleeve 14 can be removed and replaced by loosening the screws.

[0023] In use, firstly, according to the diameter dimensions of both ends of the surge arrester core 16, customize the movable plate positioning sleeve 10 and the fixed plate positioning sleeve 14 that can be fitted with it. Then, fit the fixed plate positioning sleeve 14 onto the fixed plate rotating shaft 13 and fix it with the surrounding screws. Simultaneously, fit the movable plate positioning sleeve 10 onto the outer surface of the movable plate rotating shaft 8 and fix the baffle 17 to the end of the movable plate rotating shaft 8 with countersunk screws to prevent it from falling off. At this time, the movable plate positioning sleeve 10 is pushed by the compression spring 9. When under force, it can slide on the movable plate rotating shaft 8; when not under force, it returns to its original position. After all the positioning sleeves are installed, further control the bottom linear module 4 and the top linear module 5 to move synchronously to change the position of the movable vertical plate 6, thus positioning the movable plate. The distance between sleeve 10 and fixed plate positioning sleeve 14 is slightly less than the length of the surge arrester core 16. The worker then picks up one surge arrester core 16 and inserts one end into the moving plate positioning sleeve 10. The moving plate positioning sleeve 10 is then pushed outwards so that the other end can also be inserted into the fixed plate positioning sleeve 14. As the surge arrester core 16 moves laterally from side to side, the moving plate positioning sleeve 10 also resets under the force of the compression spring 9. At this point, the surge arrester core 16 is lifted horizontally by the moving plate positioning sleeve 10 and fixed plate positioning sleeve 14. After all the positioning sleeves have lifted the surge arrester core 16, the bottom linear module 4 and the top linear module 5 move inwards synchronously. A short distance is required, ensuring that the baffle 17 does not touch the end face of the surge arrester core 16 and the compression spring 9 is compressed a short distance. At this time, the surge arrester core 16 is not only supported by the two positioning sleeves but also receives a small pushing force from the spring, preventing the surge arrester core 16 from shifting laterally during rotation. The fibers are then tied to the outer surface of the surge arrester core 16, and the servo motor 15 is started for winding. After the winding is completed, the two linear modules work simultaneously to drive the movable upright plate 6 back to its original position where the surge arrester core 16 is installed. At this point, simply pushing one end of the movable plate positioning sleeve 10 outwards will allow the surge arrester core 16 to detach from the positioning sleeves. The above process is achieved because the distance between the two positioning sleeves is changed by the linear modules. The position of the movable upright plate 6 is achieved, so that the structural strength of the device will not be affected no matter how the length of the surge arrester core 16 changes. Therefore, the problem of uneven fiber winding or the surge arrester core 16 falling off due to shaking can be avoided. Since the distance between the movable plate positioning sleeve 10 and the fixed plate positioning sleeve 14 is adjusted to be slightly less than the length of the surge arrester core 16, the movable plate positioning sleeve 10 can be pushed outward to place the surge arrester core 16 between the two positioning sleeves. Similarly, the movable plate positioning sleeve 10 can be pushed outward to place the surge arrester core 16, thus making it easy to connect the positioning sleeve and the surge arrester core 16. Since the movable upright plate 6 moves inward, it can simultaneously press all the surge arrester cores 16 together, which is very efficient.

[0024] In summary, this arrester core 16 fixing device mounts the movable plate shaft 8 onto the movable upright plate 6 and drives it to move left and right through two linear modules at the bottom and top to change the clamping distance. Because the combination of the two linear modules and the movable upright plate 6 has very high strength, its strength remains high regardless of the position it moves to. Therefore, regardless of the length of the arrester core 16 being clamped, the structural strength can be maintained, thus preventing the arrester core 16 from shaking. Only the distance between the movable plate positioning sleeve 10 and the fixed plate positioning sleeve 14 needs to be adjusted. When the bolt is positioned slightly less than the length of the arrester core 16, the moving plate positioning sleeve 10 can be pushed outward to place the arrester core 16 between the two positioning sleeves. Then, the elastic force of the compression spring 9 pushes the moving plate positioning sleeve 10 inward to temporarily hold the arrester core 16. Since the worker only needs to slide the moving plate positioning sleeve 10 a short distance to manually guide the arrester core 16 into the moving plate positioning sleeve 10, it is easy to connect. Finally, the movable upright plate 6 moves inward to simultaneously press all the arrester cores 16 together, which is very efficient.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A surge arrester core fixing device, comprising a base plate (1) and a top plate (2), characterized in that: The bottom plate (1) and the top plate (2) are provided with columns (3) on both sides. The bottom straight module (4) is installed on the upper surface of the bottom plate (1). The top straight module (5) is installed on the top surface of the top plate (2). A movable upright plate (6) is installed between the top straight module (5) and the bottom straight module (4). A movable plate bearing seat (7) is installed on the outer side of the movable upright plate (6). A movable plate shaft (8) that passes through the movable upright plate (6) and can rotate is installed inside the movable plate bearing seat (7). A compression spring (9) and a movable plate positioning sleeve (10) are sleeved on the outer surface of the movable plate shaft (8) located inside the movable upright plate (6). A fixed plate (11) is fixedly installed on the inner side of the column (3) away from the movable plate (6). A fixed plate bearing seat (12) is installed on the outer side of the fixed plate (11). A fixed plate rotating shaft (13) that passes through the fixed plate (11) and can rotate is installed inside the fixed plate bearing seat (12). A fixed plate positioning sleeve (14) is sleeved on one end of the fixed plate rotating shaft (13) located inside the fixed plate (11). A servo motor (15) that drives the fixed plate rotating shaft (13) to rotate is installed on the outer side of the column (3). A surge arrester core (16) is provided between the fixed plate positioning sleeve (14) and the movable plate positioning sleeve (10).

2. The surge arrester core fixing device according to claim 1, characterized in that: The movable upright plate (6) and the fixed upright plate (11) are both installed vertically and parallel to each other. The number of movable plate pivots (8) and fixed plate pivots (13) are the same and their positions correspond one-to-one and are in a horizontal state.

3. The surge arrester core fixing device according to claim 1, characterized in that: The top linear module (5) has the same structure as the bottom linear module (4) and operates synchronously. When the linear module is working, it can drive the movable upright plate (6) to move left and right to change its distance from the fixed upright plate (11).

4. The surge arrester core fixing device according to claim 1, characterized in that: The movable plate shaft (8) is a stepped shaft with a large outer end and a small inner end. The compression spring (9) and the movable plate positioning sleeve (10) are both sleeved on the outer surface of the inner small shaft. One end of the compression spring (9) rests on the shaft shoulder and the other end rests on the end face of the movable plate positioning sleeve (10). The movable plate positioning sleeve (10) is pushed outward by the elastic force of the compression spring (9). The inner end face of the movable plate shaft (8) is fixedly installed with a baffle (17) to prevent the movable plate positioning sleeve (10) from falling off by countersunk screws. The baffle (17) can be removed by unscrewing the countersunk screws and then the movable plate positioning sleeve (10) can be replaced.

5. The surge arrester core fixing device according to claim 1, characterized in that: The moving plate positioning sleeve (10) includes a sliding sleeve (1001), an extension sleeve (1002) and a positioning ring (1003). The sliding sleeve (1001) is in clearance fit with the moving plate shaft (8) and can slide left and right under force. The inner side of the extension sleeve (1002) protrudes outward and is spaced from the end face of the moving plate shaft (8). The positioning ring (1003) is in clearance fit with the end of the surge arrester core (16).

6. The surge arrester core fixing device according to claim 1, characterized in that: One end of the fixed plate positioning sleeve (14) is clearance-fitted with the end of the surge arrester core (16), and the other end is sleeved on the end of the fixed plate rotating shaft (13) and fixed by the surrounding screws. The fixed plate positioning sleeve (14) can be removed and replaced by loosening the screws.

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