A composite stress aging device for composite insulators

Abstract

This utility model belongs to the technical field of power system insulation material testing and research, specifically a composite stress aging device for composite insulators. A first motor is fixedly connected to the side wall of the workbench near the workbench; a first lead screw is rotatably connected to the output end of the first motor; two symmetrically arranged supports are slidably connected to the middle of the first lead screw; a limit frame is fixedly connected to the top of the supports; two symmetrically arranged limit bolts are slidably connected to the middle of the limit frame; and a spring clamp is fixedly connected to the middle of the limit frame near the limit bolts. Through the above structure, the combined use of the limit bolts and the spring clamp can accurately position the composite insulator in the test position, ensuring that the insulator is in the correct stress state during testing, improving the accuracy of the test, and avoiding slippage or displacement of the insulator during tensile testing, which would lead to uneven stress on the insulator during tensile testing and thus affect the accuracy of the test results.

Description

Technical Field

[0001] This utility model belongs to the technical field of power system insulation material testing and research, specifically a composite stress aging device for composite insulators. Background Technology

[0002] Composite insulators are based on polymer materials. They operate in complex atmospheric environments and strong electric fields for a long time, and inevitably undergo degradation and aging. Aging will seriously affect the performance of composite insulators, thereby endangering the reliability of the external insulation of transmission and distribution lines, and even leading to serious consequences such as large-scale power outages.

[0003] Traditional composite stress aging equipment mostly relies on manual operation. Manual operation requires manual adjustment of parameters throughout the process, making it difficult to achieve parallel operation of multiple sets of experiments. This results in long single test cycles, making it difficult to meet the needs of rapid screening of large-scale samples. Furthermore, the entire process from sample installation and stress loading to data recording depends on manual labor, which can easily lead to process interruptions due to operational errors or communication delays, further reducing overall efficiency.

[0004] Therefore, this utility model provides a composite stress aging device for composite insulators. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and solve at least one of the problems mentioned in the background technology, a composite stress aging device for composite insulators is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A composite insulator composite stress aging device of this utility model includes a base plate; two sets of symmetrically arranged support legs are fixedly connected to the top of the base plate; a worktable is fixedly connected to the top of the support legs; a sliding groove is opened in the middle of the worktable; a first motor is fixedly connected to the side wall of the worktable near the worktable; a first lead screw is rotatably connected to the output end of the first motor; two symmetrically arranged brackets are slidably connected to the middle of the first lead screw; a limit frame is fixedly connected to the top of the brackets; two symmetrically arranged limit bolts are slidably connected to the middle of the limit frame; and a spring clip is fixedly connected to the middle of the limit frame near the limit bolts. Through the above structure, the combined use of the limit bolts and the spring clip can accurately position the composite insulator in the test position, ensuring that the insulator is in the correct stress state during the test, improving the accuracy of the test, and avoiding the insulator from sliding or shifting during the tensile test, which would lead to uneven stress on the insulator during the tensile test and thus affect the accuracy of the test results.

[0007] Preferably, a placement groove is fixedly connected to the top of the workbench near the limiting frame; a second motor is fixedly connected to the top of the placement groove; a second lead screw is rotatably connected to the output end of the second motor; two symmetrically arranged sliders are slidably connected to the middle of the second lead screw; a fixing plate is fixedly connected to the side wall of the slider; a connecting rod is fixedly connected to the top of the fixing plate; and a pressure plate is fixedly connected to the end of the connecting rod. Through the above structure, the testing efficiency of the device for composite insulators can be effectively improved, enabling the device to quickly complete batch testing of multiple composite insulators. Compared with manual operation, this reduces human intervention and avoids the inconsistencies and errors in test results caused by manual operation.

[0008] Preferably, a sliding plate is slidably connected to the middle of the pressure plate; the middle of the sliding plate has multiple equally spaced slots; two sets of symmetrically arranged buckles are fixed to the middle of the sliding plate and are used in conjunction with the slots; the above structure can effectively adapt to composite insulators of different lengths, avoiding the problem of uneven stress area leading to fracture and breakage of composite insulators, resulting in inaccurate test results.

[0009] Preferably, two symmetrically arranged first guide rods are fixedly connected to the middle of the placement groove near the second lead screw and pass through the slider; two symmetrically arranged second guide rods are fixedly connected to the middle of the slide groove near the bracket and pass through the bracket; the first and second guide rods allow the bracket and slider to slide along a predetermined trajectory, limiting their movement and preventing deviation during sliding from affecting the testing process. With the above structure, a stable guiding system can be formed when the bracket and slider slide, avoiding problems such as shaking, tilting or deformation during movement.

[0010] Preferably, a protective plate is fixed to the top of one of the sliders; a protective plate is fixed to the bottom of the other slider; the above structure can effectively protect the sliders and prevent damage to parts caused by collisions.

[0011] Preferably, two sets of symmetrically arranged shock-absorbing pads are fixed to the top of the support leg near the workbench; the shock-absorbing pads are made of rubber; through the above structure, problems such as vibration and shaking affecting the normal use of the device and affecting the measurement results can be effectively reduced.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The composite stress aging device for composite insulators described in this utility model can accurately position the composite insulator at the test position by using a combination of limiting bolts and elastic clamps, ensuring that the insulator is in the correct stress state during the test, improving the accuracy of the test, and avoiding the insulator from sliding or shifting during the tensile test, which would lead to uneven stress on the insulator during the tensile test and thus affect the accuracy of the test results.

[0014] 2. The composite stress aging equipment for composite insulators described in this utility model can effectively improve the testing efficiency of the device for composite insulators, enabling the device to quickly complete batch testing of multiple composite insulators. Compared with manual operation, it reduces human intervention and avoids the problems of inconsistency and error in test results caused by manual operation. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the limiting bolt and the elastic clip in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the second lead screw and the slider in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the slot and buckle in this utility model.

[0020] Legend:

[0021] 1. Base plate; 11. Support leg; 12. Workbench; 13. First motor; 14. Slide groove; 15. First lead screw; 16. Bracket; 17. Limiting frame; 18. Limiting bolt; 19. Elastic clamp; 2. Placement slot; 21. Second motor; 22. Second lead screw; 23. Slider; 24. Fixing plate; 25. Connecting rod; 26. Pressure plate; 3. Slide plate; 31. Slot; 32. Buckle; 4. First guide rod; 41. Second guide rod; 5. Protective plate; 6. Shock-absorbing pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 2As shown in the embodiment of this utility model, a composite insulator composite stress aging device includes a base plate 1; two sets of symmetrically arranged support legs 11 are fixedly connected to the top of the base plate 1; a worktable 12 is fixedly connected to the top of the support legs 11; a sliding groove 14 is opened in the middle of the worktable 12; a first motor 13 is fixedly connected to the side wall of the worktable 12 near the worktable 12; a first lead screw 15 is rotatably connected to the output end of the first motor 13; two symmetrically arranged brackets 16 are slidably connected to the middle of the first lead screw 15; a limit frame 17 is fixedly connected to the top of the bracket 16; two symmetrically arranged limit bolts 18 are slidably connected to the middle of the limit frame 17; a spring clip 19 is fixedly connected to the middle of the limit frame 17 near the limit bolts 18; during operation, the composite insulator is placed on... After the spring clip 19 is positioned in the middle, the limiting bolt 18 is rotated downwards. The resulting pressure allows the spring clip 19 to fix the composite insulator. After fixing, the worktable 12 is activated. The output end of the worktable 12 can rotate the first lead screw 15. The reverse thread in the middle of the first lead screw 15 can drive the bracket 16 and the spring clip 19 to move closer or further apart synchronously, thereby performing a tensile test on the composite insulator. Through the above structure, the combined use of the limiting bolt 18 and the spring clip 19 can accurately position the composite insulator in the test position, ensuring that the insulator is in the correct stress state during the test, improving the accuracy of the test, and avoiding the insulator from sliding or shifting during the tensile test, which would cause uneven stress on the insulator during the tensile test and thus affect the accuracy of the test results.

[0025] like Figures 2 to 4 As shown, a placement groove 2 is fixedly connected to the top of the workbench 12 near the limit frame 17; a second motor 21 is fixedly connected to the top of the placement groove 2; a second lead screw 22 is rotatably connected to the output end of the second motor 21; two symmetrically arranged sliders 23 are slidably connected to the middle of the second lead screw 22; a fixing plate 24 is fixedly connected to the side wall of the slider 23; a connecting rod 25 is fixedly connected to the top of the fixing plate 24; and a pressure plate 26 is fixedly connected to the end of the connecting rod 25. During operation, after the composite insulator is fixed by the spring clamp 19, the second motor 21 is started. The output end of the second motor 21 drives the second lead screw 22 to rotate. When the second lead screw 22 rotates, it drives the sliders 23 and the pressure plate 26 to slide up and down, performing a bending test on the composite insulator. Through the above structure, the testing efficiency of the device for composite insulators can be effectively improved, enabling the device to quickly complete batch testing of multiple composite insulators. Compared with manual operation, it reduces human intervention and avoids the inconsistency and error problems caused by manual operation.

[0026] like Figure 3As shown, a sliding plate 3 is slidably connected to the middle of the pressure plate 26; multiple equally spaced slots 31 are provided in the middle of the sliding plate 3; two sets of symmetrically arranged buckles 32 are fixed to the middle of the sliding plate 3 and are used in conjunction with the slots 31; during operation, before testing a larger composite insulator, the sliding plate 3 can be slid out from the middle of the pressure plate 26, and the slots 31 and buckles 32 can be used to fix and limit it, increasing the force-bearing area of ​​the composite insulator. Through the above structure, it can effectively adapt to composite insulators of different lengths, avoiding the problem of uneven force-bearing area leading to the breakage of the composite insulator and causing inaccurate test results.

[0027] like Figure 1 As shown, two symmetrically arranged first guide rods 4 are fixedly connected to the middle of the placement groove 2 near the second lead screw 22 and pass through the slider 23; two symmetrically arranged second guide rods 41 are fixedly connected to the middle of the slide groove 14 near the bracket 16 and pass through the bracket 16; during operation, the first guide rods 4 and the second guide rods 41 can make the bracket 16 and the slider 23 slide along a predetermined trajectory, limit them, and prevent them from deviating during sliding and affecting the test process. Through the above structure, a stable guiding system can be formed when the bracket 16 and the slider 23 slide, avoiding the problems of shaking, tilting or deformation during movement.

[0028] like Figure 4 As shown, a protective plate 5 is fixed to the top of one slider 23; a protective plate 5 is fixed to the bottom of the other slider 23. During operation, when the slider 23 slides up and down to test the composite insulator, the protective plate 5 can effectively prevent the slider 23 from colliding with the top and bottom of the placement groove 2. Through the above structure, the slider 23 can be effectively protected to prevent damage to parts caused by collisions.

[0029] like Figure 1 As shown, two sets of symmetrically arranged shock-absorbing pads 6 are fixed to the top of the support leg 11 near the workbench 12; the shock-absorbing pads 6 are made of rubber; during operation, the shock-absorbing pads 6 can absorb the shaking and vibration generated when testing the composite insulator, and prevent the device from tilting. Through the above structure, the problems of vibration and shaking affecting the normal use of the device and affecting the measurement results can be effectively reduced.

[0030] like Figure 2 As shown, the elastic clip 19 is made of rubber. When the limiting bolt 18 applies pressure to the elastic clip 19 during operation, the elasticity of the elastic clip 19 can fix the composite insulator. Through the above structure, this material has good elasticity and can adapt to composite insulators of different sizes.

[0031] During operation, after placing the composite insulator in the middle of the spring clamp 19, the limiting bolt 18 is rotated downwards. The resulting pressure allows the spring clamp 19 to fix the composite insulator. After fixing, the worktable 12 is started. The output end of the worktable 12 can rotate the first lead screw 15. The reverse thread in the middle of the first lead screw 15 can drive the bracket 16 and the spring clamp 19 to move closer or further apart synchronously, thereby performing a tensile test on the composite insulator. After fixing the composite insulator with the spring clamp 19, the second motor 21 is started. The output end of the second motor 21 drives the second lead screw 22 to rotate. When the second lead screw 22 rotates, it drives the slider 23 and the pressure plate 2. 6. Slide up and down to perform a bending test on the composite insulator. Before testing a larger composite insulator, the slide plate 3 can slide out from the middle of the pressure plate 26 and be fixed and limited by the slot 31 and buckle 32 to increase the force-bearing area of ​​the composite insulator. When the slider 23 slides up and down to test the composite insulator, the protective plate 5 can effectively prevent the slider 23 from colliding with the top and bottom of the placement slot 2. The shock-absorbing pad 6 can absorb the shaking and vibration generated during the test of the composite insulator and prevent the device from tilting. When the limiting bolt 18 applies pressure to the elastic clip 19, the elasticity of the elastic clip 19 can fix the composite insulator.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A composite stress aging device for composite insulators, comprising a base plate (1); characterized in that: The top of the base plate (1) is fixed with two sets of symmetrically arranged support legs (11); the top of the support legs (11) is fixed with a worktable (12); a sliding groove (14) is opened in the middle of the worktable (12); a first motor (13) is fixed with the side wall of the worktable (12) near the worktable (12); the output end of the first motor (13) is rotatably connected with a first lead screw (15); the middle of the first lead screw (15) is slidably connected with two symmetrically arranged brackets (16); the top of the brackets (16) is fixed with a limit frame (17); the middle of the limit frame (17) is slidably connected with two symmetrically arranged limit bolts (18); the middle of the limit frame (17) near the limit bolts (18) is fixed with an elastic clamp (19).

2. The composite stress aging device for composite insulators according to claim 1, characterized in that: The workbench (12) is fixedly connected to the top of the limit frame (17) with a placement groove (2); the top of the placement groove (2) is fixedly connected to a second motor (21); the output end of the second motor (21) is rotatably connected to a second lead screw (22); the middle part of the second lead screw (22) is slidably connected to two symmetrically arranged sliders (23); the side wall of the slider (23) is fixedly connected to a fixing plate (24); the top of the fixing plate (24) is fixedly connected to a connecting rod (25); the end of the connecting rod (25) is fixedly connected to a pressure plate (26).

3. The composite stress aging device for composite insulators according to claim 2, characterized in that: The pressure plate (26) is slidably connected to a slide plate (3); the slide plate (3) has multiple slots (31) arranged at equal intervals in the middle; the slide plate (3) is fixedly connected to two sets of symmetrically arranged buckles (32) in the middle, which are used in conjunction with the slots (31).

4. The composite stress aging device for composite insulators according to claim 3, characterized in that: The placement groove (2) has two symmetrically arranged first guide rods (4) fixedly connected to the middle part near the second lead screw (22), and they pass through the slider (23); the slide groove (14) has two symmetrically arranged second guide rods (41) fixedly connected to the middle part near the bracket (16), and they pass through the bracket (16).

5. The composite stress aging device for composite insulators according to claim 4, characterized in that: A protective plate (5) is fixed to the top of one of the sliders (23); a protective plate (5) is fixed to the bottom of the other slider (23).

6. The composite stress aging device for composite insulators according to claim 5, characterized in that: The support leg (11) is fixed with two sets of symmetrically arranged shock-absorbing pads (6) near the top of the workbench (12); the shock-absorbing pads (6) are made of rubber.

7. The composite stress aging device for composite insulators according to claim 6, characterized in that: The elastic clip (19) is made of rubber.

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