Tool for measuring parallelism of basin-type insulator

Abstract

The utility model discloses a tool for measuring the parallelism of a basin-type insulator, and the tool comprises a pedestal disposed in the interior of the basin-type insulator to be detected, the interior of the pedestal is rotatably provided with a rotating shaft, the upper end surface of the rotating shaft is of a plane structure and is provided with a magnetic seat, and the outer side of the magnetic seat is connected with one end of a first connecting rod. The other end of the first connecting rod is movably connected with one end of a second connecting rod through a first connecting block, and the other end of the second connecting rod is connected with a dial indicator through a second connecting block; bearings are arranged between the portions, close to the upper end and the lower end, in the base and the rotating shaft. The lower end of the rotating shaft is provided with a threaded hole and a limiting screw in threaded connection with the threaded hole. According to the utility model, the parallelism of basin-type insulators of various different dimensions can be measured, the maximum parallelism error of the upper end face of the basin-type insulator can be known by rotating the magnetic base for one circle after the basin-type insulator is placed for work, the detection efficiency is effectively improved, and the detection accuracy is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of testing fixtures for basin-type insulators, and in particular to a fixture for measuring the parallelism of basin-type insulators. Background Technology

[0002] In power systems, the parallelism of the outer end faces of high-voltage basin insulators is crucial to the product's sealing performance, insulation properties, and overall reliability. Under high-voltage conditions, even minute errors in flatness can lead to sealing failure or uneven electric field distribution, potentially causing safety accidents. Therefore, during the production of basin insulators, it is necessary to inspect the parallelism of their end faces to ensure they meet design requirements, thus facilitating the safe operation of transmission lines and substation equipment using these insulators. Currently, basin insulator manufacturers primarily measure the parallelism of the insulators by placing them on a platform and manually using a handheld micrometer. This method is cumbersome, inefficient, and prone to significant errors. Therefore, a new tooling for measuring the parallelism of basin insulators needs to be developed. Summary of the Invention

[0003] The purpose of this invention is to provide a tooling for measuring the parallelism of a basin-type insulator, thereby solving the problems mentioned in the background.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a parallelism measuring fixture for a basin-type insulator, comprising a base placed inside the basin-type insulator to be tested, a rotating shaft rotatably disposed inside the base, the upper end surface of the rotating shaft being a planar structure and having a magnetic seat, the outer side of the magnetic seat being connected to one end of a first connecting rod, the other end of the first connecting rod being movably connected to one end of a second connecting rod via a first connecting block, and the other end of the second connecting rod being connected to a dial indicator via a second connecting block.

[0006] Furthermore, bearings are respectively provided between the interior of the base near the upper and lower ends and the rotating shaft.

[0007] Furthermore, the lower end of the rotating shaft has a threaded hole and a limiting screw that is threadedly connected to it.

[0008] Furthermore, the first connecting block includes a first sleeve that is slidably sleeved on the first connecting rod and a second sleeve that is slidably sleeved on the second connecting rod, wherein the upper end of the first sleeve and the end of the second sleeve away from the second connecting rod are hingedly connected.

[0009] Furthermore, one end of the second connecting block is hinged to the other end of the second connecting rod, and the dial indicator is located at the other end of the second connecting block.

[0010] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0011] This invention can measure the parallelism of various sizes and specifications of basin-type insulators. After placement, rotating the magnetic base once will reveal the maximum parallelism error of the upper surface of the basin-type insulator. This effectively improves the testing efficiency and greatly enhances the accuracy of the inspection, preventing the outflow of unqualified products due to inaccurate measurements. Furthermore, this invention is convenient to use and simple to operate, effectively saving the manpower, material resources, and financial resources required for basin-type insulator parallelism testing. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the base of this utility model;

[0015] Figure 3 This is a schematic diagram of the measurement state of this utility model;

[0016] Figure 4 This is a schematic diagram of the basin-type insulator to be tested according to this utility model;

[0017] Explanation of reference numerals in the attached diagram: 1. Basin insulator; 2. Base; 3. Conductor; 4. Shaft; 5. Magnetic base; 6. Bearing; 7. Limit screw; 8. First connecting rod; 9. First connecting block; 10. Second connecting rod; 11. Second connecting block; 12. Dial indicator. Detailed Implementation

[0018] like Figures 1-4 As shown, a parallelism measuring fixture for a basin-type insulator includes a base 2 placed inside the basin-type insulator 1 to be tested. The lower end face of the base 2 is configured to fit the shape of the conductor 3 inside the basin-type insulator 1, and the lower end face of the base 2 mates with the upper end face of the conductor 3.

[0019] The base 2 has a rotating shaft 4 rotatably mounted inside. The upper end face of the rotating shaft 4 is a planar structure parallel to the end face of the base and a magnetic seat 5 is mounted thereon. In actual operation, when the base 2 is stationary, the magnetic seat 5 rotates together with the rotating shaft 4 inside the base 2.

[0020] Bearings 6 are installed between the upper and lower ends of the base 2 and the rotating shaft 4. The two bearings 6 serve to support the rotation of the rotating shaft 4 and ensure the stability of the rotation of the rotating shaft 4.

[0021] The lower end of the rotating shaft 4 is provided with a threaded hole, and a limiting screw 7 is installed through the threaded hole and threadedly connected to it. The limiting screw 7 serves to prevent the rotating shaft 4 from detaching from the base 2.

[0022] The outer side of the magnetic base 5 is connected to one end of the first connecting rod 8. The other end of the first connecting rod 8 is movably connected to one end of the second connecting rod 10 through the first connecting block 9. The other end of the second connecting rod 10 is connected to a dial indicator 12 through the second connecting block 11.

[0023] In this embodiment, the first connecting block 9 includes a first sleeve 9-1 slidably fitted onto the first connecting rod 8 and a second sleeve 9-2 slidably fitted onto the second connecting rod 10. The upper end of the first sleeve 9-1 and the end of the second sleeve 9-2 away from the second connecting rod 10 are hinged together. The first sleeve 9-1 and the second sleeve 9-2 are fixed to the first connecting rod 8 and the second connecting rod 10 respectively by corresponding set screws (not shown in the figure). By cooperating with the first connecting rod 8 and the second connecting rod 9 respectively, the distance between the dial indicator 12 and the magnetic base 5 can be adaptively adjusted. One end of the second connecting block 11 is hinged to the other end of the second connecting rod 10, and the dial indicator 12 is installed on the other end of the second connecting block 11, thereby facilitating the adjustment of the position of the dial indicator 12 through the second connecting block 11. Therefore, the adjustable connection structure of the first connecting block and the second connecting block can adapt to the measurement needs of basin insulators of different sizes and specifications.

[0024] In practical application, this invention involves placing the base with the rotating shaft inside the basin-type insulator to be tested, then placing the magnetic base at the center of the upper plane of the rotating shaft. Rotating the switch on the magnetic base causes it to adhere to the end face. The dial indicator is connected to the magnetic base via a first connecting rod, a first connecting block, a second connecting rod, and a second connecting block. Finally, rotating the magnetic base one full turn allows the dial indicator probe to pass through different positions on the upper end face of the basin-type insulator. By observing the maximum and minimum values ​​of the dial indicator, a precise parallelism value can be obtained.

[0025] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A fixture for measuring the parallelism of a basin-type insulator, characterized in that: The device includes a base placed inside the basin-type insulator to be tested. The base has a rotating shaft inside, and the upper end of the rotating shaft is a planar structure with a magnetic seat. The outer side of the magnetic seat is connected to one end of a first connecting rod. The other end of the first connecting rod is movably connected to one end of a second connecting rod through a first connecting block. The other end of the second connecting rod is connected to a dial indicator through a second connecting block.

2. The parallelism measuring tool for a pot-type insulator according to claim 1, wherein: Bearings are respectively installed between the upper and lower ends of the base and the rotating shaft.

3. The parallelism measuring tool for basin insulator according to claim 1, characterized in that: The lower end of the rotating shaft has a threaded hole and a limit screw that is threadedly connected to it.

4. The fixture for measuring the parallelism of a basin-type insulator according to claim 1, characterized in that: The first connecting block includes a first sleeve that is slidably sleeved on the first connecting rod and a second sleeve that is slidably sleeved on the second connecting rod. The upper end of the first sleeve and the end of the second sleeve away from the second connecting rod are hinged together.

5. The parallelism measuring tool for basin insulator according to claim 1, characterized in that: One end of the second connecting block is hinged to the other end of the second connecting rod, and the dial indicator is located at the other end of the second connecting block.

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