Composite insulator falling test device

Abstract

The utility model discloses a composite insulator falling test device, which comprises a base, a tank body and a suspension assembly, the tank body is fixedly connected to the upper end of the base, the suspension assembly is arranged in the tank body, and the suspension assembly is used for accurately controlling the suspension height of an insulator; the device further comprises a buffer assembly arranged at the bottom in the tank body, the buffer assembly is used for protecting test equipment and recording falling data, and a leveling module is arranged on the edge of the base. The utility model belongs to the technical field of electric power fitting testing, and particularly relates to a composite insulator falling test device.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric power fittings test, especially relates to a test device of composite insulator falling. BACKGROUND

[0002] With the rapid development of electric power industry, the construction scale of power grid is continuously expanded, and voltage grade is gradually improved, so the performance requirement of insulator in transmission line is more and more strict. Composite insulator is widely used because of good insulating performance and light weight, but also faces problems such as aging and environmental influence in operation, which may cause falling and threaten the safety of power grid, so a test device is needed to simulate and verify its reliability.

[0003] Once the composite insulator falls, it may cause serious consequences such as line short circuit and power failure, which will cause huge economic loss and social influence. In order to ensure the safe and stable operation of power system, it is necessary to simulate various working conditions through the test device, detect the performance of composite insulator, find potential hazards in advance, and develop corresponding preventive measures, but the existing technology cannot accurately control the hanging height of the insulator, simulate different falling initial states, and record the motion parameters, impact force and structural deformation during the falling process of the insulator. UTILITY MODEL CONTENT

[0004] In view of the above situation, the defects that the existing technology cannot accurately control the hanging height of the insulator and record the data during the falling process of the insulator are overcome.

[0005] The utility model adopts the technical scheme as follows: a test device of composite insulator falling, including base and jar body, the jar body is fixedly connected on the upper end of base, and the suspension assembly arranged in the jar body, the suspension assembly is used for being able to accurately control the hanging height of the insulator, still including the buffer assembly arranged in the bottom of jar body, the buffer assembly is used for protecting test equipment and recording falling data, the edge of base is equipped with leveling module.

[0006] Further, the suspension assembly includes a sliding block, a screw rod, a hydraulic module and a pressure plate, the inside of the jar body is symmetrically provided with a sliding groove along the central axis of the jar body, the sliding block is slidingly arranged in the sliding groove, the screw rod is penetratingly arranged at both ends of the sliding groove, the screw rod is power-connected with the power shaft of the rotary motor at the extending end, the outer top end of the jar body is provided with a closed working cavity, the rotary motor is fixedly connected inside the working cavity, the hydraulic module is fixedly connected on the opposite side of the sliding block, the pressure plate is fixedly connected with the power end of the hydraulic module, the other end of the hydraulic module is communicated with the hydraulic pump through the conduit, the middle part of the pressure plate is provided with a pressure sensor one, and the inside of the jar body is provided with a height sensing module.

[0007] Further, the buffer assembly comprises a support plate and a ring shell, the support plate is slidingly arranged at the bottom of the tank body, a pressure sensor two is arranged at the bottom end of the tank body, a spring is arranged between the pressure sensor two and the bottom end of the support plate, an air outlet is arranged at the middle of the bottom end of the tank body, the ring shell is fixedly connected to the inner side of the air outlet, a closed booster cavity is arranged in the ring shell, an air outlet is arranged at the lower end of the booster cavity, the booster cavity is communicated with the air outlet end of the turbine air pump through a pipeline, and an adsorption cavity is formed on the inner side wall of the air outlet.

[0008] Further, the working cavity is provided with a microprocessor, the rotary motor is electrically connected with the microprocessor through a wire, the pressure sensor one is electrically connected with the microprocessor through a wire, the height sensing module is electrically connected with the microprocessor through a wire, and the hydraulic pump is electrically connected with the microprocessor through a wire.

[0009] Further, the pressure bearing plate is circularly arranged, and the edge of the pressure bearing plate is provided with a rubber pad.

[0010] Further, the tank body is in a hollow cylindrical shape, the support plate and the tank body are matched with each other, and a plurality of through holes are arranged at the edge of the support plate.

[0011] Further, the spring is arranged at the bottom end of the support plate and the upper end of the pressure sensor two, one end of the spring is in contact with the support plate, and the other end of the spring is in contact with the pressure sensor two.

[0012] Further, the pressure sensor two is electrically connected with the microprocessor through a wire, and the turbine air pump is electrically connected with the microprocessor through a wire.

[0013] Further, a plurality of adsorption membranes are arranged at intervals in the adsorption cavity, and silica gel adsorbent is filled between the adsorption membranes.

[0014] Further, the leveling module comprises an adjusting rod and a support block, the adjusting rod is screw-connected to the edge of the base along the central axis of the base, the support block is rotationally arranged at the lower end of the adjusting rod, and a plurality of anti-skid ribs are arranged at the lower end of the support plate.

[0015] After the above structure is adopted, the beneficial effects of the utility model are as follows:

[0016] (1) Through the linkage of the sliding block, the screw rod, the hydraulic module, the pressure bearing plate, the pressure sensor one and the height sensing module in the suspension assembly, the position of the sliding block is changed by rotating the screw rod driven by the rotary motor, so that the suspension height and angle of the insulator are accurately controlled, different falling initial states are simulated, the microprocessor controls the hydraulic pump to accurately release the insulator at the set time, and the repeatability and accuracy of the falling test are ensured.

[0017] (2) A buffer assembly is installed at the bottom of the tank by linking the buffer assembly support plate and ring shell with the turbine air pump, pressure sensor II, and spring to reduce the impact force after the insulator falls and protect the test site and equipment. At the same time, a pressure sensor II and a height sensing module are installed at the lower end of the buffer assembly to realize a data acquisition device, which is used to record the motion parameters, impact force, and structural deformation during the insulator fall process. Attached Figure Description

[0018] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded view of the overall structure of this utility model;

[0021] Figure 3 This is a half-section diagram of the overall structure of this utility model. Figure 1 ;

[0022] Figure 4 This is a half-section diagram of the overall structure of this utility model. Figure 2 ;

[0023] Figure 5 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0024] Figure 6 This is a partial cross-sectional view of the structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0026] Figure 8 for Figure 4 Enlarged view of part A.

[0027] In the attached diagram: 1. Base, 2. Tank body, 3. Slider, 4. Screw, 5. Hydraulic module, 6. Pressure plate, 7. Pressure sensor one, 8. Microprocessor, 9. Rotary motor, 10. Rubber pad, 11. Support plate, 12. Ring shell, 13. Pressure sensor two, 14. Spring, 15. Pressurization chamber, 16. Exhaust port, 17. Adsorption chamber, 18. Adjusting rod, 19. Support block, 20. Anti-slip rib. Detailed Implementation

[0028] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] like Figures 1-2 As shown in Figure 7, a test device for the fall test of a composite insulator includes a base 1 and a tank 2. The tank 2 is fixed to the upper end of the base 1, and a suspension assembly is disposed inside the tank 2. The suspension assembly is used to precisely control the suspension height of the insulator. It also includes a buffer assembly disposed at the bottom of the tank 2. The buffer assembly is used to protect the test equipment and record fall data. The base 1 is provided with a leveling module at its edge. The leveling module includes an adjusting rod 18 and a support block 19. The adjusting rod 18 is threadedly connected to the edge of the base 1 at intervals along the central axis of the base 1. The support block 19 is rotatably disposed at the lower end of the adjusting rod 18. The lower end of the support plate 11 is provided with several anti-slip ridges 20 to keep it level under different ground conditions.

[0031] like Figures 2-3 As shown in -4-5-6, the suspension assembly includes a slider 3, a screw 4, a hydraulic module 5, and a pressure plate 6. A groove is symmetrically formed along the central axis of the tank body 2 on its inner side. The slider 3 is slidably disposed within the groove. The screw 4 passes through both ends of the groove, and its extended end is connected to the power shaft of the rotary motor 9. A closed working chamber is provided at the top outer end of the tank body 2. The rotary motor 9 is fixedly connected inside the working chamber. The hydraulic module 5 is fixedly connected to the opposite side of the slider 3. The pressure plate 6 is fixedly connected to the power end of the hydraulic module 5. The other end of the hydraulic module 5 is connected to a hydraulic pump via a conduit. A pressure sensor 7 is provided in the middle of the pressure plate 6. A height sensing module is provided inside the tank body 2.

[0032] The working cavity is internally provided with a microprocessor 8, the rotating motor 9 is electrically connected with the microprocessor 8 through wires, the pressure-sensitive sensor 7 is electrically connected with the microprocessor 8 through wires, the height sensing module is electrically connected with the microprocessor 8 through wires, the hydraulic pump is electrically connected with the microprocessor 8 through wires, the pressure-bearing plate 6 is circularly arranged, the pressure-bearing plate 6 is provided with a rubber pad 10 at the edge, the position of the sliding block 3 is changed by rotating the screw rod 4 driven by the rotating motor 9, the suspension height and angle of the insulator are accurately controlled, different falling initial states are simulated, the microprocessor 8 controls the hydraulic pump to inject liquid into the hydraulic device, the stable clamping of the insulator in the rising stage is ensured, and the insulator is accurately released at the set time, so that the repeatability and accuracy of the falling test are ensured.

[0033] As shown in Figures 3-4 The buffer assembly includes a support plate 11 and a ring shell 12, the support plate 11 is slidingly arranged at the inner bottom of the tank body 2, the inner bottom end of the tank body 2 is provided with a pressure-sensitive sensor 13, a spring 14 is arranged between the pressure-sensitive sensor 13 and the bottom end of the support plate 11, a gas outlet is formed in the middle of the bottom end of the tank body 2, the ring shell 12 is fixedly connected to the inner side of the gas outlet 16, a closed booster cavity 15 is formed in the ring shell 12, the booster cavity 15 is provided with a gas outlet 16 at the lower end, and the booster cavity 15 is communicated with the gas outlet end of the turbine air pump through a conduit, and the inner side wall of the gas outlet forms an adsorption cavity 17.

[0034] The tank body 2 is in the form of a hollow cylinder, the support plate 11 and the inner part of the tank body 2 are mutually fitted, the support plate 11 is provided with a plurality of through holes at the edge, the spring 14 is arranged at the bottom end of the support plate 11 and the upper end of the pressure-sensitive sensor 13, one end of the spring 14 is in contact with the support plate 11, the other end of the spring 14 is in contact with the pressure-sensitive sensor 13, the pressure-sensitive sensor 13 is electrically connected with the microprocessor 8 through wires, the turbine air pump is electrically connected with the microprocessor 8 through wires, a plurality of adsorption membranes are arranged in the adsorption cavity 17 at intervals, and the adsorption membranes are filled with silica gel adsorbent, the buffer assembly is arranged at the bottom of the tank body 2 to reduce the impact force after the insulator falls, and the test site and equipment are protected. At the same time, the pressure-sensitive sensor 13 and the height sensing module are installed at the lower end of the buffer assembly to realize the data acquisition equipment, which is used for recording the motion parameters, impact force and structural deformation during the falling process of the insulator, the environment simulation system composed of the adsorption cavity 17 and the booster cavity 15 is arranged in the tank body 2, and the temperature and humidity adjusting device is arranged, so that the falling of the composite insulator under different environmental conditions is simulated, and the authenticity and reliability of the test are improved.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents. In general, if a person skilled in the art is inspired by the present application, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical scheme should belong to the protection scope of the present application.

Claims

1. A test device for a composite insulator to fall, characterized by: The utility model provides a kind of experimental equipment protection device, including base (1) and tank body (2), the tank body (2) is fixedly connected on the upper end of base (1), and suspension assembly is arranged in tank body (2), further including buffer assembly arranged in the bottom of tank body (2), the edge of base (1) is equipped with leveling module, the leveling module includes adjusting rod (18) and support block (19), adjusting rod (18) is spaced apart screw connection along the central axis of base (1) with the edge of base (1), support block (19) is rotationally arranged in the lower end of adjusting rod (18), the lower end of support block (19) is equipped with several anti-skid ridge (20); The linkage of the sliding block (3), the screw rod (4), the hydraulic module (5) and the pressure plate (6) with the pressure sensor (7) and the height sensing module in the suspension assembly controls the suspension height of the insulator and simulates different falling initial states. The linkage of the support plate (11) and the ring shell (12) with the turbine air pump, the pressure sensor (13) and the spring (14) in the buffer assembly protects the experimental equipment and records the falling data.

2. A fall testing device for composite insulators according to claim 1, characterized in that: The suspension assembly includes a sliding block (3), a screw rod (4), a hydraulic module (5) and a pressure plate (6). The inside of the tank body (2) is symmetrically provided with a sliding groove along the central axis of the tank body (2). The sliding block (3) is slidingly arranged in the sliding groove. The screw rod (4) is penetratingly arranged at both ends of the sliding groove. The power shaft of a rotary motor (9) is power-connected with the protruding end of the screw rod (4). The tank body (2) is provided with a closed working cavity at the top. The rotary motor (9) is fixedly connected inside the working cavity. The hydraulic module (5) is fixedly connected to the opposite side of the sliding block (3). The pressure plate (6) is fixedly connected to the power end of the hydraulic module (5). The other end of the hydraulic module (5) is connected to a hydraulic pump through a conduit. The middle part of the pressure plate (6) is provided with a pressure sensor (7). The inside of the tank body (2) is provided with a height sensing module.

3. A fall testing device for composite insulators according to claim 2, characterised in that: A microprocessor (8) is arranged in the working cavity. The rotary motor (9) is power-connected with the microprocessor (8) through wires. The pressure sensor (7) is power-connected with the microprocessor (8) through wires. The height sensing module is power-connected with the microprocessor (8) through wires. The hydraulic pump is power-connected with the microprocessor (8) through wires.

4. The fall testing device of claim 2, wherein: The pressure plate (6) is circularly arranged. The edge of the pressure plate (6) is provided with a rubber pad (10).

5. The fall testing device of claim 3, wherein: The buffer assembly includes a support plate (11) and a ring shell (12). The support plate (11) is slidingly arranged in the bottom of the tank body (2). The bottom end of the tank body (2) is provided with a pressure sensor (13). The pressure sensor (13) and the bottom end of the support plate (11) are provided with a spring (14) therebetween. The bottom end of the tank body (2) is provided with an air outlet in the middle. The ring shell (12) is fixedly connected to the inside of the air outlet (16). The inside of the ring shell (12) is provided with a closed booster cavity (15). The lower end of the booster cavity (15) is provided with an air outlet (16). One end of the booster cavity (15) is connected to the air outlet end of a turbine air pump through a conduit. The inside of the air outlet forms an adsorption cavity (17).

6. A composite insulator fall testing apparatus as claimed in claim 5, wherein: The tank body (2) is provided in a hollow cylindrical shape, the support plate (11) is matched with the inside of the tank body (2), and the edge of the support plate (11) is provided with a plurality of through holes.

7. A fall testing device for a composite insulator according to claim 6, wherein: The spring (14) is arranged at the bottom end of the support plate (11) and the upper end of the second pressure-sensitive sensor (13), one end of the spring (14) is in contact with the support plate (11), and the other end of the spring (14) is in contact with the second pressure-sensitive sensor (13).

8. A fall testing device for a composite insulator according to claim 7, wherein: The second pressure-sensitive sensor (13) is electrically connected to the microprocessor (8) through a wire, and the turbine air pump is electrically connected to the microprocessor (8) through a wire.

9. A fall testing device for composite insulators according to claim 8, characterised in that: A plurality of adsorption membranes are arranged at intervals in the adsorption cavity (17), and the adsorption membranes are filled with silica gel adsorbent.

Images