Insulator partial discharge batch detection tool

Abstract

The application belongs to a kind of detection tool, in view of the technical problem that insulator is easy to tip over and the detection efficiency is low in traditional insulator detection method, provide a kind of insulator partial discharge batch detection tool, including base, positioning part and elastic part, a plurality of positioning holes are formed in base, positioning part is installed in the positioning hole of base, the top of positioning part is higher than the top surface of base, forms positioning table, and the insulator is limited and fixed.Elastic part is installed on positioning part, the height of positioning table can be adjusted by the elasticity of elastic part, more scenes are suitable.The application can realize the rapid positioning and elastic fixing of insulator through the synergistic effect of positioning hole, positioning part and elastic part, solve the problem of low detection efficiency when a large number of different specifications of insulator enter the field partial discharge detection, simple operation, and the detection efficiency is improved significantly.

Description

Technical Field

[0001] This application pertains to a type of testing fixture, specifically relating to a batch testing fixture for partial discharge of insulators. Background Technology

[0002] Medium-voltage insulators are widely used in air switchgear, primarily to ensure the electrical insulation and mechanical support of conductive circuits. However, partial discharge from insulators can affect the overall insulation performance of electrical products; therefore, all insulators must undergo partial discharge testing before installation and use.

[0003] Traditional testing methods involve placing insulators vertically for inspection, typically in groups of one or three. However, this method is prone to insulator tipping over during testing, makes batch testing difficult, and results in low testing speed. Summary of the Invention

[0004] This application addresses the technical problems of traditional insulator testing methods, such as insulators being prone to tipping over and low testing efficiency, by providing a batch testing fixture for partial discharge of insulators.

[0005] To achieve the above objectives, this application adopts the following technical solution: A batch testing fixture for partial discharge of insulators includes: A base, wherein multiple positioning holes are provided on the base; The positioning component is installed in the positioning hole of the base, and the top of the positioning component is higher than the top surface of the base to form a positioning platform, which is used to adapt to the bottom hole structure of the insulator to be tested and to limit and fix the insulator. An elastic element is installed on a positioning element. One end of the elastic element is connected to or abuts against the base, and the other end is connected to or abuts against the bottom of the positioning platform.

[0006] Furthermore, it also includes a handle mounted on the base.

[0007] Furthermore, the base includes a first mounting plate and a second mounting plate that are parallel to and connected to each other; Reinforcing ribs are provided between the first mounting plate and the second mounting plate, and at the bottom of the second mounting plate.

[0008] Furthermore, the positioning element is threadedly connected to the base.

[0009] Furthermore, it also includes adjusting nuts; The adjusting nut is mounted on the positioning member and is located at the bottom of the second mounting plate.

[0010] Furthermore, the elastic element is a spring; The elastic element is sleeved on the positioning element; One end of the elastic element is connected to or abuts against the upper surface of the second mounting plate, and the other end passes through the positioning hole on the first mounting plate and is connected to or abuts against the bottom of the positioning platform.

[0011] Furthermore, among the multiple positioning holes, every two form a group, corresponding to one insulator to be tested.

[0012] Furthermore, the reinforcing ribs are located at both ends of the first mounting plate and the second mounting plate, as well as between adjacent sets of positioning holes.

[0013] Furthermore, the positioning element is a positioning pin.

[0014] Furthermore, the base and the reinforcing rib are fixed together by welding.

[0015] Compared with the prior art, this application has the following beneficial effects: This application proposes a batch testing fixture for insulator partial discharge, comprising a base, positioning components, and an elastic component. The base has multiple positioning holes, and the positioning components are installed within these holes. The top of the positioning components protrudes above the top surface of the base, forming a positioning platform to limit and fix the insulators. The elastic component is installed on the positioning components, allowing for adjustment of the positioning platform's height using its elasticity, making it suitable for more scenarios. Through the synergistic effect of the positioning holes, positioning components, and elastic component, this application enables rapid positioning and elastic fixation of insulators, effectively preventing insulators from tipping over during testing. It also supports simultaneous testing of multiple groups of insulators, significantly improving testing efficiency and operational safety, and possesses advantages such as structural stability and strong adaptability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a batch testing fixture for partial discharge of insulators according to this application; Figure 2 This is a schematic diagram of the structure of the insulator to be tested mounted on a set of positioning members in an embodiment of this application.

[0018] The components are: 1-base, 2-positioning component, 3-elastic component, 4-reinforcing rib, 5-handle, 6-positioning platform, 7-adjusting nut, and 8-insulator to be tested. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In traditional medium-voltage insulator partial discharge testing, the lack of reliable batch fixing devices necessitates operators to vertically position each insulator individually. Insufficient positioning stability can easily lead to insulator displacement or tilting during testing, causing fluctuations in the effective coupling area of ​​the detection probe and reducing signal acquisition consistency. When multiple insulators are tested simultaneously, mechanical interference between adjacent samples further exacerbates the probability of positioning failure, forcing the testing process to switch to a serial mode.

[0026] If the above problems cannot be resolved, the parallel advantages of batch testing will not be realized, and testing efficiency will continue to be limited by manual operation. Signal fluctuations caused by positioning inaccuracies will also reduce the comparability of test results, affecting the accurate screening of defective insulators. Misjudgments caused by mechanical vibration transmission will increase the frequency of re-inspection, and the service life of the testing equipment will also be accelerated. More seriously, the measurement value of the partial discharge initiation voltage of insulators under tilted conditions will produce systematic deviations, posing a safety hazard to the operation of power equipment.

[0027] Based on the above, this application proposes a batch testing fixture for partial discharge of insulators. The following is a detailed description of this application in conjunction with embodiments and accompanying drawings.

[0028] As a basic embodiment of the insulator partial discharge batch testing fixture of this application, it may include: The base 1 has multiple positioning holes. As the basic support component of the entire tooling, the base 1 can be made of metal to ensure that the entire tooling has sufficient strength and stability.

[0029] Positioning component 2 is installed in the positioning hole of base 1. The top of positioning component 2 protrudes above the top surface of base 1, forming a positioning platform 6, which is used to adapt to the bottom hole structure of the insulator 8 to limit and fix the insulator. Positioning component 2 is a limiting component that matches the bottom hole structure of the insulator. Specifically, it can be a cylindrical pin or a stepped shaft structure, etc. The positioning platform 6 formed on the top of positioning component 2 limits the displacement of the insulator through the height difference, thereby achieving vertical positioning.

[0030] Elastic element 3 is installed on positioning element 2. One end of elastic element 3 is connected to or abuts against base 1, and the other end is connected to or abuts against the bottom of positioning platform 6. Elastic element 3 can be various connecting parts with elastic deformation capabilities, such as helical springs. Elastic element 3 maintains the contact pressure between positioning element 2 and insulator through pre-compression force, buffers external vibration or impact, and can cooperate to complete the adjustment of the extension height of positioning element 2.

[0031] This application utilizes a combination structure of positioning element 2 and elastic element 3 to form a batch-installable limiting unit on the base 1. The positioning platform 6 at the top of the positioning element 2 adapts to the bottom hole structure of the insulator to achieve radial limiting, while the elastic element 3 provides axial elastic support. The combined effect of the two ensures that multiple insulators remain stable and upright simultaneously, solving the technical problem of insulators easily tipping over and being unable to be batch-fixed in traditional testing.

[0032] When using the fixture, the insulator 8 to be tested is placed on the positioning platform 6. The positioning platform 6 is adapted to the bottom hole structure of the insulator, enabling rapid positioning and fixation of the insulator. The elastic element 3 provides an upward elastic force, ensuring close contact between the positioning platform 6 and the bottom of the insulator. When external vibration or impact acts on the insulator, the elastic element 3 can absorb some of the vibration energy, reducing insulator displacement and maintaining testing stability.

[0033] The present application will be further described in detail below through some more detailed embodiments. For example... Figure 1 The image shown is a structural schematic diagram of a batch testing fixture for partial discharge of insulators according to this application. Figure 2 The diagram shown is a schematic of the structure of the insulator 8 to be tested mounted on a set of positioning components 2.

[0034] In some embodiments of this application, the base 1 can be made of metal, and the positioning element 2 can be made of wear-resistant alloy, is cylindrical, and has external threads at the bottom to mate with the internal threads in the positioning hole of the base 1. The top of the positioning element 2 is designed as a frustum, forming a positioning platform 6, the diameter of which is slightly smaller than the bottom hole diameter of the insulator. The elastic element 3 is a metal helical spring, sleeved on the outside of the positioning element 2.

[0035] In some embodiments of this application, the base 1 may include a first mounting plate and a second mounting plate that are parallel to and connected to each other. Reinforcing ribs 4 are provided between the first and second mounting plates, and at the bottom of the second mounting plate. Specifically, the reinforcing ribs 4 are located at both ends of the first and second mounting plates, and between adjacent sets of positioning holes, and are fixedly connected to the base 1 by welding. This greatly enhances the structural strength of the base 1, making it less prone to deformation when bearing multiple insulators for testing.

[0036] The first mounting plate primarily supports the positioning element 2 and the elastic element 3, while the second mounting plate mainly serves as the foundation load-bearing layer. The two are arranged in parallel to form a rigid frame. When multiple insulators are installed simultaneously, the double-layer structure uses reinforcing ribs 4 to distribute longitudinal pressure and prevent the mounting plates from bending or deforming. During testing, the reinforcing ribs 4 at the bottom of the second mounting plate contact the testing platform, forming a stable three-point support system to prevent the insulators from shifting due to the tilting of the base 1. This design ensures structural strength while accommodating the compression stroke of the elastic element 3.

[0037] Because reinforcing ribs 4 are provided between the first and second mounting plates, and at the bottom of the second mounting plate, the base 1 is less prone to deformation when bearing the weight of multiple insulators. This structural design ensures that the position of the insulators remains stable during testing, thereby improving the accuracy and reliability of partial discharge testing. Furthermore, the reinforced base 1 structure extends the service life of the testing fixture, reducing the frequency of maintenance and replacement.

[0038] In some embodiments of this application, a handle 5 may also be included. The handle 5 is fixed to the side of the base 1 by bolts or welding, and its installation position can be designed symmetrically or extend to one side according to the size of the base 1. The grip portion of the handle 5 may also have an anti-slip texture design. In practical applications, the distribution positions of the handle 5 and the reinforcing ribs 4 on the base 1 are staggered to avoid affecting the structural strength of the base 1. Operators can quickly move or rotate tooling by holding the handle 5, and do not need to directly contact the surface of the base 1 when transferring it between different workstations on the testing table.

[0039] In some embodiments of this application, an adjusting nut 7 is also included. The adjusting nut 7 is mounted on the positioning member 2 and is located at the bottom of the second mounting plate. The elastic member 3 is a spring, which is sleeved on the positioning member 2. One end of the elastic member 3 is connected to or abuts against the upper surface of the second mounting plate, and the other end passes through the positioning hole on the first mounting plate and is connected to or abuts against the bottom of the positioning platform 6. The positioning member 2 is a positioning pin. Among the multiple positioning holes, every two form a group, corresponding to one insulator 8 to be tested. The positioning pin can be easily installed and removed, and its position can also be flexibly adjusted according to the bottom hole structure of different specifications of insulators. The adjusting nut 7 is mounted on the positioning member 2 and is located at the bottom of the second mounting plate. By rotating the adjusting nut 7, the height of the positioning pin on the base 1 can be adjusted to meet the testing requirements of insulators of different height specifications. In specific operation, when it is necessary to raise the positioning pin, the adjusting nut 7 is rotated counterclockwise. When it is necessary to lower the positioning pin, the adjusting nut 7 is rotated clockwise. In this way, it can be ensured that the insulator remains stable after being installed on the positioning pin, thereby improving the accuracy of the test. In the multiple positioning holes, two holes form a group, corresponding to one insulator 8 to be tested. This design can make reasonable use of the space of the base 1 to achieve batch testing of insulators. When performing partial discharge testing on insulators, first, adjust the height of the positioning pin according to the specifications of the insulator 8 to be tested by adjusting the nut 7. Then, align the hole structure at the bottom of the insulator 8 to be tested with the positioning platform 6 at the top of the positioning pin, and slowly lower the insulator. At this time, the elastic element 3 will be compressed due to the weight of the insulator, providing stable support for the insulator. After all the insulators 8 to be tested are installed on the positioning pins of the fixture, the operator can use the handle 5 to move the fixture to the testing equipment to perform partial discharge testing on the insulators.

[0040] The insulator partial discharge batch testing fixture of this application effectively solves the problems of low testing efficiency and easy tipping of insulators in the prior art by rationally designing the structure and connection method of components such as base 1, positioning pin, elastic element 3, adjusting nut 7, reinforcing rib 4 and handle 5. It realizes batch and stable testing of insulators, improves the testing speed and accuracy, and has significant practicality and promotion value.

[0041] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A batch testing fixture for partial discharge of insulators, characterized in that, include: The base (1) has multiple positioning holes. Positioning component (2), the positioning component (2) is installed in the positioning hole of the base (1), the top of the positioning component (2) is higher than the top surface of the base (1) to form a positioning platform (6), which is used to adapt to the bottom hole structure of the insulator (8) to be tested and to limit and fix the insulator; The elastic element (3) is installed on the positioning element (2). One end of the elastic element (3) is connected to or abuts against the base (1), and the other end is connected to or abuts against the bottom of the positioning platform (6).

2. The insulator partial discharge batch testing fixture according to claim 1, characterized in that, It also includes a handle (5) mounted on the base (1).

3. The insulator partial discharge batch testing fixture according to claim 1, characterized in that, The base (1) includes a first mounting plate and a second mounting plate that are parallel to each other and connected to each other; Reinforcing ribs (4) are provided between the first mounting plate and the second mounting plate, and at the bottom of the second mounting plate.

4. The insulator partial discharge batch testing fixture according to claim 3, characterized in that, The positioning element (2) is threadedly connected to the base (1).

5. The insulator partial discharge batch testing fixture according to claim 4, characterized in that, It also includes the adjusting nut (7); The adjusting nut (7) is installed on the positioning member (2), and the adjusting nut (7) is located at the bottom of the second mounting plate.

6. The insulator partial discharge batch testing fixture according to claim 5, characterized in that, The elastic element (3) is a spring; The elastic element (3) is sleeved on the positioning element (2); One end of the elastic element (3) is connected to or abuts against the upper surface of the second mounting plate, and the other end passes through the positioning hole on the first mounting plate and is connected to or abuts against the bottom of the positioning platform (6).

7. The insulator partial discharge batch testing fixture according to claim 6, characterized in that, In the plurality of positioning holes, every two are grouped together, corresponding to one insulator to be tested (8).

8. The insulator partial discharge batch testing fixture according to claim 7, characterized in that, The reinforcing ribs (4) are located at both ends of the first mounting plate and the second mounting plate, and between adjacent sets of positioning holes.

9. The insulator partial discharge batch testing fixture according to claim 8, characterized in that, The positioning element (2) is a positioning pin.

10. The insulator partial discharge batch testing fixture according to claim 9, characterized in that, The base (1) and the reinforcing rib (4) are fixed together by welding.

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