Overall bending moment testing device for three-post insulator
By designing a reasonable overall bending moment test device for three-pillar insulators, the existing device has short force arms and poor test conditions, real working conditions are realized and simplified tests are facilitated, and electrical testing is facilitated.
Patent Information
- Application Number
- CN202422057888.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The existing three-pillar insulator overall bending moment test device has unreasonable structure, short force arms, insufficient test conditions, difficult to simulate working conditions, and special test tooling is required.
A test device including a base, side wall panel, busbar shell, jack and oblique brace was designed. The conductor force arm was 1.5 meters, the conductor deformed significantly, and the hydraulic jack and aluminum plate were welded to simulate the real working conditions.
It achieves more stringent test conditions, can truly simulate the bending moment resistance of three-pillar insulators, simplifies the test process, and facilitates electrical testing.
Smart Images

Figure CN223078090U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to GIL technology, and particularly relates to a three-pillar insulator integral bending moment test device. Background Art
[0002] For the integral bending moment test of three-pillar insulators, the device structure used in the past has a special structure with an outer circular ring of the main body, which needs to be specially made. During the test, the conductor is relatively short, the force arm is small, and the test conditions are not harsh enough. Content of the Utility Model
[0003] The utility model provides a three-pillar insulator integral bending moment test device.
[0004] The technical solution of the utility model is as follows:
[0005] The three-pillar insulator integral bending moment test device, the test device includes a base; the test device also includes side wall plates, the side wall plates are fixedly connected to the base, a bus housing, which is placed in front of the side wall plates, the front and end of which are facing the side wall plates and are fixedly connected to the side wall plates through flanges, and the front end is suspended. The three-pillar insulator to be tested is installed in the bus housing, and a conductor is installed in the three-pillar insulator to be tested, and the front section of the conductor extends out from the front end of the bus housing;
[0006] The test device also includes a jack, the jack is installed on the base, and is located below the front section of the conductor, and the top pin of the jack abuts against the front section of the conductor.
[0007] The top pin of the jack abuts against a position 1.5 m away from the three-pillar insulator to be tested; during the test, the conductor force arm is about 1.5 meters, and the conductor itself will have a certain deformation, and the conditions are more severe.
[0008] The jack is a hydraulic jack with a digital display.
[0009] Two diagonal braces are installed on the front side of the side wall plates, and the two diagonal braces are located on both sides of the bus housing and are symmetric.
[0010] The three-pillar insulator to be tested is welded in the bus housing through an aluminum plate, which is closer to the actual working condition.
[0011] The advantages of the utility model are reasonable design, simple structure, simulating the actual working condition during the test, the conductor is relatively short, the force arm is long, the test conditions are harsh, and the bending moment resistance ability of the three-pillar insulator obtained from the test is objective; it is convenient to do electrical tests, and electrical tests can be carried out like the routine product factory without special test tooling. Brief Description of the Drawings
[0012] Figure 1 It is a structural schematic diagram of a three-pillar insulator integral bending moment test device.
[0013] In the figure, there are base 1, side wall panel 2, busbar housing 3, three - pillar insulator to be tested 4, conductor 5, jack 6, and diagonal brace 7. Detailed implementation manners
[0014] As shown in the figure, for the overall bending moment test device of the three - pillar insulator, the test device includes base 1; the test device also includes side wall panel 2, and side wall panel 2 is fixedly connected to base 1. There is also busbar housing 3, which is placed in front of side wall panel 2, and the front and rear ends are directly opposite to side wall panel 2 and are fixedly connected to side wall panel 2 through a flange, with the front end suspended. The three - pillar insulator 4 to be tested is installed inside busbar housing 3, and conductor 5 is installed inside the three - pillar insulator 4 to be tested, and the front section of conductor 5 extends out from the front end of busbar housing 3.
[0015] The test device also includes jack 6, and jack 6 is installed on base 1, which is located below the front section of conductor 5, and the thimble of jack 6 abuts against the front section of conductor 5.
[0016] The thimble of jack 5 abuts against the position 1.5 m away from the three - pillar insulator 3 to be tested.
[0017] Jack 5 is a hydraulic jack with digital display.
[0018] On the front side of side wall panel 2, there are two diagonal braces 7 installed, and the two diagonal braces 7 are located on both sides of busbar housing 3 and are symmetrical.
[0019] The three - pillar insulator 4 to be tested is welded inside busbar housing 3 through an aluminum plate.
[0020] The above is only the preferred detailed implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. Three-pillar insulator overall bending moment test device, the test device comprising a base; characterized in that, The test device further includes side wall panels which are fixedly connected to the base. A busbar housing is placed in front of the side wall panels. The front and rear ends of the busbar housing face the side wall panels and are fixedly connected to the side wall panels through flanges, and the front end is suspended. The three-column insulator to be tested is installed in the busbar housing. A conductor is installed in the three-column insulator to be tested, and the front section of the conductor extends out from the front end of the busbar housing. The test device further includes a jack which is installed on the base and is located below the front section of the conductor. The jacking pin of the jack abuts against the front section of the conductor.
2. The overall bending moment test device for a three-pillar insulator according to claim 1, characterized in that, The jacking pin of the jack abuts against the position 1.5 m away from the three-column insulator to be tested.
3. The overall bending moment test device for the three-pillar insulator according to claim 1, wherein The jack is a hydraulic jack with a digital display.
4. The overall bending moment test device for the three-pillar insulator according to claim 1, characterized in that, Two diagonal braces are installed on the front side of the side wall panels, and the two diagonal braces are located on both sides of the busbar housing and are symmetrical.
5. The overall bending moment test device for the three-pillar insulator according to claim 1, characterized in that, The three-column insulator to be tested is welded in the busbar housing through an aluminum plate.