CN204359718U - A kind of clamp of sensor measured for composite insulator ageing state - Google Patents
A kind of clamp of sensor measured for composite insulator ageing state Download PDFInfo
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- CN204359718U CN204359718U CN201420781431.1U CN201420781431U CN204359718U CN 204359718 U CN204359718 U CN 204359718U CN 201420781431 U CN201420781431 U CN 201420781431U CN 204359718 U CN204359718 U CN 204359718U
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Abstract
The utility model provides a kind of clamp of sensor measured for composite insulator ageing state, comprise a flat column cross-arm and one end to have square hole and to slide on cross-arm and first, second, third sway brace that can move axially along cross-arm, the middle part that first, second sway brace lays respectively at the two ends, left and right of cross-arm, the 3rd sway brace is positioned at cross-arm, cross-arm and each sway brace are altogether in " mountain " word supporting structure; The other end of first, second sway brace is to be clipped in clamp structure composite electric insulator core bar being fixed whole fixture; 3rd sway brace upper sliding sleeve has sensor, and the cooperation place, front and back that the square hole of the 3rd sway brace slides over cross-arm exists space.3rd sway brace of the present utility model can swing and moving axially along cross-arm, and sensor can axially move along the 3rd sway brace, make nmr sensor can to the measurement in one piece of region any on full skirt, structure be simple simultaneously, install and operation all very convenient.
Description
Technical field
The utility model relates to a kind of clamp of sensor measured for composite insulator ageing state.
Background technology
Composite insulator is lightweight due to it, and physical strength is high, and not easily broken, anti-pollution characteristic is good, and hydrophobic nature is widely used by force in electric system.But along with running the increase of the time limit, the catabiosis of composite insulator is very serious, insulator surface hydrophobic nature is caused to reduce, the degradation of resistance to pollution flashover, the reliability decrease of insulation, have a strong impact on the safe and stable operation of electrical network, so be very important to the online evaluation of the ageing state of composite insulator.The online test method of existing composite insulator umbrella skirt material mainly contains direct observational method, ultraviolet image method, infrared imaging method, hydrophobic nature detection method etc.The method of existing detection composite insulator umbrella skirt aging state, has certain limitation and deficiency, or subjectivity is large, or can not quantitatively detect, or large by such environmental effects.If realize the online quantitatively detection of aging degree of umbrella skirt state, need to consider by new method.
Nuclear magnetic resonance technique, as a kind of nondestructiving detecting means, is widely used in life medical treatment, food analysis, quality control, material science and geophysics field etc.Nuclear magnetic resonance technique utilizes the magnetic resonance characteristics of H atom core, obtains the magnetic resonance spectrum (MRS) of H core, and according to some features of MRS, as the width of spectral line, shape and area understand nuclear character and residing environment, to determine molecular structure.
Composite insulator umbrella skirt aging Non-Destructive Testing principle based on nuclear magnetic resonance is: the full skirt principal ingredient of composite insulator is dimethyl silicone polymer, in molecule with repeat Si-O key for main chain, Si atom is directly connected with the polymkeric substance such as methyl, vinyl.Composite insulator umbrella skirt material is under long-term rugged environment, the bond energy of Si-O key can weaken, even rupture, make the change of H atom quantity and state in molecular formula, the change containing H amount and state in insulator cluster parachute is detected by nuclear magnetic resonance technique, corresponding inverting peak area and T2 change, weigh the degree of aging of full skirt.
Therefore, nuclear magnetic resonance is utilized to be feasible to detect composite insulator ageing state.But, a problem that will solve with magnetic resonance detection composite insulator ageing state is, how to allow probe each region of full skirt can be detected.Not etc., full skirt spacing does not generally only have about 25mm for full skirt radius 30mm to the 70mm of composite insulator.The upper and lower surface support of full skirt has certain angle, result in the structure that full skirt presents one " outer thin interior thick ".This makes nmr probe be difficult to the part of full skirt near core bar jacket be detected, but to assess the ageing state of composite insulator, the full skirt measurement of this part is absolutely necessary.
Utility model content
Technical problem to be solved in the utility model, is just to provide and a kind ofly installs simple, the easy to operate clamp of sensor measured for composite insulator ageing state, can realize the measurement of nmr sensor to one piece of region any on full skirt easily.
Solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of clamp of sensor measured for composite insulator ageing state, it is characterized in that: comprise a flat column cross-arm, and one end has square hole and to slide on cross-arm and first, second, third sway brace that can move axially along cross-arm, the middle part that first, second sway brace lays respectively at the two ends, left and right of cross-arm, the 3rd sway brace is positioned at cross-arm, cross-arm and each sway brace are altogether in " mountain " word supporting structure; The other end of first, second described sway brace is to be clipped in clamp structure composite electric insulator core bar being fixed whole fixture; The 3rd described sway brace upper sliding sleeve has sensor, and the cooperation place, front and back that the square hole of the 3rd sway brace slides over cross-arm exists space, facilitates the 3rd sway brace to swing.
The square hole of the 3rd described sway brace is provided with holding screw, the tightening after swinging for the 3rd sway brace.
Described clamp structure is the anchor ear of two ends docking or overlap joint.
On the basis of above-mentioned arbitrary technical scheme, make following improvement:
Described have first, second sway brace one end that square hole slides on cross-arm and be also provided with holding screw, for first, second sway brace fastening after regulating first, second sway brace spacing at cross-arm.
The process of the utility model specific works:
First according to the spacing of composite insulator umbrella skirt regulate first, second sway brace on cross-arm spacing, the angle of whole fixture is determined according to the region that will measure, utilize clamp structure to clamp composite electric insulator core bar, then with screw, clip locking can be fixed whole fixture.The position of mobile 3rd sway brace makes it as far as possible near the full skirt surface that will measure, and then manually pulls sensor movable on the 3rd sway brace according to the degree of depth that will measure, the position of definite kernel magnetic resonance sensors.Finally regulate the angle of the 3rd sway brace, make nmr sensor can be fitted in the surface of full skirt, be then tightened the holding screw of the 3rd sway brace on cross-arm, can start to measure.
Compared with prior art, the utility model instrument has the following advantages:
3rd sway brace of the present utility model can swing and moving axially along cross-arm, and sensor can axially move along the 3rd sway brace, make nmr sensor can to the measurement in one piece of region any on full skirt, structure be simple simultaneously, install and operation all very convenient.
Accompanying drawing explanation
Schematic perspective view when Fig. 1 is the utility model use;
Fig. 2 is schematic perspective view of the present utility model;
Fig. 3 is side view of the present utility model;
Fig. 4 the utility model lever arm makees the schematic diagram swung.
In figure: a-composite electric insulator core bar, b-composite insulator umbrella skirt, 1-first sway brace, 2-second sway brace, 3-the 3rd sway brace, 4-cross-arm, 5-sensor, 6-holding screw, 7-lock screw.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.
As shown in Figure 1, 2, a kind of clamp of sensor measured for composite insulator ageing state, comprise a flat column cross-arm 4, and one end has square hole and to slide on cross-arm and first, second, third sway brace 1,2,3 that can move axially along cross-arm, the middle part that first, second sway brace lays respectively at the two ends, left and right of cross-arm, the 3rd sway brace is positioned at cross-arm, cross-arm and each sway brace are altogether in " mountain " word supporting structure; The other end of first, second described sway brace is to be clipped in clamp structure composite electric insulator core bar being fixed whole fixture; The 3rd described sway brace upper sliding sleeve has sensor 5, and the cooperation place, front and back that the square hole of the 3rd sway brace slides over cross-arm exists space, facilitates the 3rd sway brace to swing.Wherein cross-arm, first, second, third sway brace is all made up of rigid plastic.
The square hole of the 3rd described sway brace 3 is provided with holding screw 6, the tightening after swinging for the 3rd sway brace.
Described clamp structure is specially the anchor ear of two ends overlap joint, and the both sides of anchor ear overlap joint are respectively provided with two lock screws 7.
On the basis of above-mentioned arbitrary technical scheme, make following improvement:
Described have first, second sway brace 1,2 one end that square hole slides on cross-arm and be also provided with holding screw 6, for first, second sway brace fastening after regulating first, second sway brace spacing at cross-arm.
Claims (4)
1. the clamp of sensor measured for composite insulator ageing state, it is characterized in that: comprise a flat column cross-arm (4), and one end has square hole and to slide on cross-arm and first, second, third sway brace (1,2,3) that can move axially along cross-arm;
Described first, second sway brace (1,2) lays respectively at the two ends, left and right of cross-arm, the 3rd described sway brace (3) is positioned at the middle part of cross-arm (4), and cross-arm and each sway brace are altogether in " mountain " word supporting structure;
The other end of described first, second sway brace (1,2) is to be clipped in clamp structure composite electric insulator core bar being fixed whole fixture;
The 3rd described sway brace (3) upper sliding sleeve has sensor (5), and the cooperation place, front and back that the square hole of the 3rd sway brace slides over cross-arm exists space, facilitates the 3rd sway brace to swing.
2. the clamp of sensor measured for composite insulator ageing state according to claim 1, is characterized in that: the square hole of the 3rd described sway brace (3) is provided with holding screw (6), the tightening after swinging for the 3rd sway brace.
3. the clamp of sensor measured for composite insulator ageing state according to claim 2, is characterized in that: described clamp structure is the anchor ear of two ends docking or overlap joint.
4. the clamp of sensor measured for composite insulator ageing state according to any one of claim 1 to 3, is characterized in that: described have first, second sway brace (1,2) end that square hole slides on cross-arm (4) and be also provided with holding screw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781431.1U CN204359718U (en) | 2014-12-12 | 2014-12-12 | A kind of clamp of sensor measured for composite insulator ageing state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781431.1U CN204359718U (en) | 2014-12-12 | 2014-12-12 | A kind of clamp of sensor measured for composite insulator ageing state |
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| Publication Number | Publication Date |
|---|---|
| CN204359718U true CN204359718U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420781431.1U Active CN204359718U (en) | 2014-12-12 | 2014-12-12 | A kind of clamp of sensor measured for composite insulator ageing state |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737283A (en) * | 2016-12-20 | 2017-05-31 | 国网重庆市电力公司电力科学研究院 | A kind of fixture for nmr sensor |
| CN108051364A (en) * | 2017-12-13 | 2018-05-18 | 中国科学院长春应用化学研究所 | A kind of EPR nuclear energy cable residue lifetime estimation method and prediction EPR nuclear energy cable remaining life methods |
| CN110133033A (en) * | 2019-03-26 | 2019-08-16 | 贵州电网有限责任公司 | The comprehensive efficient on-line measuring device of composite insulator umbrella skirt |
-
2014
- 2014-12-12 CN CN201420781431.1U patent/CN204359718U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737283A (en) * | 2016-12-20 | 2017-05-31 | 国网重庆市电力公司电力科学研究院 | A kind of fixture for nmr sensor |
| CN108051364A (en) * | 2017-12-13 | 2018-05-18 | 中国科学院长春应用化学研究所 | A kind of EPR nuclear energy cable residue lifetime estimation method and prediction EPR nuclear energy cable remaining life methods |
| CN110133033A (en) * | 2019-03-26 | 2019-08-16 | 贵州电网有限责任公司 | The comprehensive efficient on-line measuring device of composite insulator umbrella skirt |
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