CN1173374C - Method and apparatus for detecting bevel part of insulator - Google Patents
Method and apparatus for detecting bevel part of insulator Download PDFInfo
- Publication number
- CN1173374C CN1173374C CNB021071977A CN02107197A CN1173374C CN 1173374 C CN1173374 C CN 1173374C CN B021071977 A CNB021071977 A CN B021071977A CN 02107197 A CN02107197 A CN 02107197A CN 1173374 C CN1173374 C CN 1173374C
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- umbrella portion
- insulator
- umbrella
- stress
- scale
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Abstract
The invention provides a defect detection method of an insulator cap part in which automation of detection is possible and precise inspection of the defect of the cap part can be done, and appropriate quality control can be performed. A jig fixture is inserted from multiple directions between the cap part and the cap part of the insulator and, by applying stress on the cap part, the defect of the cap part is detected. The device for implementing the defect detection method of the insulator cap part is constructed of a base table for setting the insulator to be inspected, a plurality of jig fixtures that are provided on the base table and constructed to be capable of inserting in and separating from between the cap part and cap part of the insulator set on it, a stress detection means that is provided on the insulator set, and calculates the stress applied on between the cap part and cap part, and a control means that controls the movement of the fixtures and detects the defect of insulator cap part based on the stress applied on between the cap part and cap part, that is calculated by the stress detecting means.
Description
Technical field
The present invention relates to the detection method of the defective of the insulator umbrella portion in the insulator
Prior art
In the prior art, insulator has various structures as the insulator of power transmission line etc. is known.In this insulator,, be necessary to increase the creepage distance of insulator surface in order to make it compact and to have high voltage-resistent characteristic.The umbrella portion of a plurality of rugosities generally is set on the surface of insulator main body for this reason.
As mentioned above, in the insulator of prior art, the umbrella portion that is located on the insulator body surfaces plays an important role.Simultaneously, when having defectives such as crackle in the umbrella portion, can not reach the performance of expection.Therefore, all the time, in all sorts of ways and detect the defective of insulator umbrella portion.Detection method as the defective of this insulator umbrella portion, for example, under the situation of ceramic insulator, the method of defective detects in the visual insulator umbrella of known usefulness portion, knock the method that defective detects in insulator umbrella portion with wooden mallet, add the method that thermal stress detects the defective of insulator umbrella portion in insulator umbrella portion by the temperature difference.
Summary of the invention
In the defect inspection method of the insulator umbrella portion of the prior art of above-mentioned ceramic insulator, in the defect inspection method of visual detection, require the reviewer must be very skilled, simultaneously, also exist the problem that can not detect small defective.In addition, in the defect inspection method that knocks with wooden mallet,, simultaneously, also exist the problem that when hitting, produces noise because the deviation of hitting power can not be carried out defects detection completely.And then, in the defect inspection method that carries out with the temperature difference (thermal stress), exist the problem that needs a large amount of heats.Simultaneously, in above-mentioned any defect inspection method, be difficult to carry out the quantification of defects detection, exist the problem that to carry out appropriate quality management to insulator.
The objective of the invention is,, provide a kind of automation that detects, can carry out the detection of the defective of high-precision umbrella portion, and can realize the detection method of the defective of the optimized insulator umbrella of quality management portion in order to address the above problem.
Being characterized as of the defect inspection method of insulator umbrella of the present invention portion, by scale being inserted between the umbrella portion and umbrella portion of insulator from a plurality of directions, to umbrella portion stress application, detect the defective of umbrella portion, the radius of curvature R 1 of scale leading section is a bit larger tham the radius of curvature R 2 of the connecting portion of umbrella portion and umbrella portion, before the leading section contact umbrella portion and the connecting portion between the umbrella portion of scale, the leading section of scale contacts with umbrella portion, by in this state scale further being inserted, to the open direction stress application of umbrella portion and umbrella portion.
In addition, the defect detecting device of insulator umbrella of the present invention portion is a device of implementing the defect inspection method of above-mentioned insulator umbrella portion, it is characterized by, and is made of following part: the base that insulator to be detected is installed; Be located on the base, can insert/extract the umbrella portion of mounted insulator and a plurality of scales between the umbrella portion; Be located at and install on the insulator, obtain the stress detection mechanism that is added in the stress between umbrella portion and the umbrella portion; In the control scale, detect the defect Control mechanism of insulator umbrella portion according to the stress between umbrella portion that is added in that obtains with stress detection mechanism and the umbrella portion.
In the present invention, from a plurality of directions scale be inserted between the umbrella portion and umbrella portion of insulator, thereby, at first, can mechanically control the action of scale automatically, can make the detection automation to the structure of the defective of stress application detection umbrella portion of umbrella portion by utilizing.In addition, certain stress can be added in usually in the umbrella portion, can carry out the detection of umbrella portion defective accurately.And then, can utilize stress detection mechanism that the stress that is added in the umbrella portion is quantized, can utilize this quantized data to carry out quality management.
As the preferred embodiments of the present invention, have: (1) is by inserting scale, utilize stress detection mechanism to detect to be applied to the stress between umbrella portion and the umbrella portion, detect the defective of umbrella portion according to detected stress, (3) are detected by stress detection mechanism and are inserted scale and be applied to the stress between umbrella portion and the umbrella portion and it is stored and manage.In all cases, can both further preferably implement the present invention.
As from top explanation as can be seen, according to the present invention, by inserting scale between the umbrella portion and umbrella portion of insulators from a plurality of directions, to umbrella portion stress application, can detect the defective of umbrella portion, so, the action of scale can be mechanically controlled automatically, the automation that detects can be realized.In addition, can apply certain stress to umbrella portion all the time, can carry out high-precision test the defective of umbrella portion.And then, can quantize the stress that is added in the umbrella portion with stress detection mechanism, can utilize the data of this quantification to carry out quality management.
Description of drawings
Fig. 1 (a) (b) is the diagram of structure of an example of representing the defect detecting device of insulator umbrella of the present invention portion respectively.
Fig. 2 (a) (b) is the diagram of an example of representing the forward part of the scale that uses in the defect detecting device of the present invention respectively.
Fig. 3 is the diagram of an example that is used to illustrate the defect inspection method of insulator umbrella of the present invention portion.
Fig. 4 is the diagram of another example that is used to illustrate the defect inspection method of insulator umbrella of the present invention portion.
Fig. 5 is the diagram of the example of the expression insulator that the defect inspection method of insulator umbrella of the present invention portion is used for other shape.
Fig. 6 is the diagram of the example of the expression insulator that the defect inspection method of insulator umbrella of the present invention portion is used for other shape.
Fig. 7 is the diagram of the example of the expression insulator that the defect inspection method of insulator umbrella of the present invention portion is used for other shape.
Concrete form of implementation
Fig. 1 (a), (b) be the diagram of structure of an example of representing the checkout gear of insulator umbrella of the present invention portion defective respectively, Fig. 1 (a) is the profile of the integral body that will the install excision part seen when observing from the top, and Fig. 1 (b) is the section that the part that will install that expression is seen when observing from the side is excised.At Fig. 1 (a), in the defect detecting device 1 of the insulator umbrella of the present invention portion shown in (b), middlely insulator to be detected 2 is placed on the base 4 through sample bench 3.Base 4 is by the first highly different base 4-1, and the second base 4-2 and the 3rd base 4-3 constitute.In this example, the second base 4-2 is identical with the height of the 3rd base 4-3.
In addition, be provided with on the base 4 a plurality of, be four here and can insert/extract the 2-1 of umbrella portion of mounted insulator 2 and the scale 5 between the 2-2 of umbrella portion.That is, scale 5 is by the first scale 5-1, the second scale 5-2, the 3rd scale 5-3, and the 4th scale 5-4 formation are arranged on the first scale 5-1 and the second scale 5-2 on the first base 4-1, the 3rd scale 5-3 is arranged on the second base 4-2, the 4th scale 5-4 is arranged on the 3rd base 4-3.In this example, constitute the first scale 5-1 and the second scale 5-2 with stationary state, simultaneously, the 3rd scale 5-3 and the 4th scale 5-4 are respectively with available drive unit 6-1, and the mode that 6-2 drives constitutes.Therefore, when being installed to insulator 2 on the sample bench 3, the fore-end separately that is in the first scale 5-1 of stationary state and the second scale 5-2 is inserted into the 2-1 of umbrella portion of insulator 2 and the state between the 2-2 of umbrella portion is installed.
And then on mounted insulator 2, setting is obtained and is added in the stress detection mechanism 7 that the stress between 2-1 of umbrella portion and the 2-2 of umbrella portion is used.As stress detection mechanism 7, can use dynamometer, pressure sensor etc.Simultaneously, controlling organization 8 is set on base 4, this controlling organization is passing through respectively with each drive unit 6-1,6-2 controls, so that control the action of the 3rd scale 5-3 and the 4th scale 5-4, be added in stress between 2-1 of umbrella portion and the 2-2 of umbrella portion to the 2-1 of umbrella portion of insulator according to what obtain with stress detection mechanism 7, the defective of 2-2 detects.As controlling organization 8, can use PC that monitor is housed etc.
In addition, the 9th, extract the servicing unit that insulator is used, its structure is its leading section 9-1 can be released to the direction of insulator 2.Simultaneously, the insulator 2 after detection is finished by leading section 9-1 is released to the direction of insulator 2, will be inserted into the 2-1 of umbrella portion when testing stand 3 unloads, and the first scale 5-1 between the 2-2 and the second scale 5-2 extract between the 2-2 from the 2-1 of umbrella portion.In addition, in this example, why make the second base 4-2 and the 3rd base 4-3 be lower than the first base 4-1, be because make can driven the 3rd scale 5-3 and the 4th scale 5-4 tilt with respect to base 4, the 3rd scale 5-3 and the 4th scale 5-4 are inserted into slightly between the 2-1 of umbrella portion and the 2-2 of umbrella portion of under shed being convenient to.
Fig. 2 (a), (b) represent in the defect detecting device 1 of the present invention an example of the fore-end of the scale 5 that uses respectively, Fig. 2 (a) is the diagram of observing the fore-end of scale 5 from top direction, and Fig. 2 (b) is the diagram of observing the fore-end of scale 5 from the side.At Fig. 2 (a), (b) in, the fore-end 11 of scale 5 is for example made by MC nylon.From above when observing, shown in Fig. 2 (a), the shape of the connecting portion 12 of the shape of the front end 11-1 of fore-end 11 and the 2-1 of umbrella portion and the 2-2 of umbrella portion is roughly the same.In addition, when observing from the side, shown in Fig. 2 (b), the radius of curvature R 1 of the front end 11-1 of fore-end 11 is a bit larger tham the radius of curvature R 2 of the connecting portion 12 of 2-1 of umbrella portion and the 2-2 of umbrella portion.For example, when the radius of curvature R 2 of connecting portion 12 was 8mm, the radius of curvature R 1 of the front end 11-1 of fore-end 11 was 9mm.
Therefore, when the fore-end 11 of scale 5 being inserted lentamente between 2-1 of umbrella portion and the 2-2 of umbrella portion, because R1＞R2, at first, at front end 11-1 with before connecting portion 12 contacts, the upper surface of front end 11-1 contacts at contact point 14 places with the lower surface 13 of the 2-1 of umbrella portion of upside, and the lower surface of front end 11-1 contacts at contact point 16 places with the upper surface 15 of the 2-2 of umbrella portion of downside simultaneously.In this state, when then further being inserted between 2-1 of umbrella portion and the 2-2 of umbrella portion, one of the 2-1 of umbrella portion effect is pointed to the power of upside at contact point 14 places to scale 5, simultaneously, at contact point 16 places to the power of a sensing of the 2-2 of umbrella portion effect downside.The power of the power of this sensing upside and sensing downside becomes big at leisure along with contact back scale 5 enters between 2-1 of umbrella portion and the 2-2 of umbrella portion.In the present invention, obtain the power of expansion umbrella 2-1 of portion and the 2-2 of umbrella portion like this, this expansion force is used for defects detection.In addition, as R1 during too greater than R2, the front end 11-1 of scale 5 locates to contact more in the outer part with the 2-2 of umbrella portion with the 2-1 of umbrella portion, can not be effectively with 2-1 of umbrella portion and the 2-2 of umbrella portion expansion, so be not very desirable.
Fig. 3 is the diagram of an example that is used to illustrate the defect inspection method of insulator umbrella of the present invention portion.In example shown in Figure 3,, omit its explanation for giving identical symbol with the defect detecting device 1 identical parts of Figure 1 and Figure 2.In the defect inspection method of insulator umbrella of the present invention portion, at first be inserted under the 2-1 of umbrella portion and the state between the 2-2 of umbrella portion of insulator 2 at fore-end 11 with the first scale 5-1 of fixation side, insulator 2 is installed on the testing stand 3.In this state, fore-end 11 that can driven the 3rd scale 5-3 is inserted between 2-1 of umbrella portion and the 2-2 of umbrella portion from the direction opposite with the first scale 5-1 at leisure.When the front end 11-1 of the fore-end 11 of the 3rd scale 5-3 contacted with 2-1 of umbrella portion and the 2-2 of umbrella portion at contact point 14,16 places, the front end 11-1 of the fore-end 11 of the first anchor clamps 5-1 that has been mounted contacted with 2-1 of umbrella portion and the 2-2 of umbrella portion equally.In this state, when continuing to be inserted into the 3rd scale 5-3 between 2-1 of umbrella portion and the 2-2 of umbrella portion,, and be that the first scale 5-1 place also produces the above-mentioned expansion umbrella 2-1 of portion of identical size and the expansion force of the 2-2 of umbrella portion not only at the 3rd scale 5-3 place.Thereby, onesize expansion force is arranged along the 2-1 of umbrella portion of insulator 2 and the full Zhou Zuoyong of the 2-2 of umbrella portion.Whereby, stress application on 2-1 of umbrella portion and the 2-2 of umbrella portion.Simultaneously, still do not have damaged finished product in the time of will reaching the value of obtaining as the threshold value of normal finished product and defective finished product with the stress value that stress detection mechanism 7 is obtained, be judged to be normal finished product.Just damaged before this finished product then is defective finished product.
Fig. 4 is the another one example that is used to illustrate the defect inspection method of insulator umbrella of the present invention portion.In example shown in Figure 4, the parts identical with the defect detecting device 1 of Figure 1 and Figure 2 are given identical symbol, omit its explanation.In example shown in Figure 4, be that with example difference shown in Figure 3 insulator 2 has three 2-1 of umbrella portion, 2-2,2-3 therewith accordingly, is provided with two group of first scale 5-1 and the 3rd scale 5-3 respectively.Self-evident, the not shown second scale 5-2 and the 4th scale 5-4 also respectively are provided with two groups respectively.In this example, can be with implementing the defect inspection method of insulator umbrella of the present invention portion with the duplicate method of above-mentioned example.
In the detection method and device of the insulator umbrella portion defective of the invention described above, can be set directly at dynamometer iso-stress testing agency 7 on the surface of insulator 2.In this embodiment, can measure the 2-1 of umbrella portion that is created in insulator 2 more accurately, the stress on the 2-2, but when carrying out the defect inspection of insulator 2 actually continuously, for Installation Stress testing agency 7 needs spended time.In this case, also can be installed in stress detection mechanism 7 on any one scale 5.In addition, since scale 5 and the 2-1 of umbrella portion, the position relation of 2-2, even when insulator 2 changes,, also can keep roughly the same state as long as its shape is identical, so, obtain drive unit 6-1 in advance, the release power of 6-2 be added in the 2-1 of umbrella portion, the relation of the stress on the 2-2, according to this relation, by accessory drive 6-1,6-2, also can obtain and be added in the 2-1 of umbrella portion, the stress on the 2-2.
In the defect inspection method and device of the insulator umbrella portion of the invention described above,, be that example is illustrated with the outer folding insulator of umbrella portion directed outside as insulator 2.But the present invention also is applicable to the insulator of other shape with a plurality of umbrella portion.Fig. 5～Fig. 7 is the diagram of example that the defect inspection method of insulator umbrella of the present invention portion is used for the insulator of other shape.In example shown in Figure 5, be the head that points to the suspension insulator 2 of downside with pressing plate 21 compacting umbrella portions, can insert the umbrella 2-1 of portion to scale 5, carry out defects detection between the 2-2.In example shown in Figure 6, expression is applied to the stock formula insulator 2 that uses or the example of SP insulator 2 to the present invention under the state that electric substation equals to erect.In addition, in example shown in Figure 7, the example during expression is used for the present invention to use under being installed to the state of electric pole etc. obliquely LP insulator 2.In the example of Figure 6 and Figure 7, the same with example recited above, can insert the umbrella 2-1 of portion to scale 5, carry out defects detection between the 2-2.In described any one example of Fig. 5～Fig. 7, the method that available with above-mentioned example is identical is carried out defects detection.In addition, in the example of Fig. 5～Fig. 7, only expressed the relation of scale 5 and insulator 2, self-evident, other structure also can adopt the structure identical with the example of Figure 1 and Figure 2.
Claims (6)
1, the defect inspection method of a kind of insulator umbrella portion, it is characterized by, by being inserted into from a plurality of steering handle scales between the umbrella portion and umbrella portion of insulator, to umbrella portion stress application, detect the defective of umbrella portion, the radius of curvature R 1 of scale leading section is a bit larger tham the radius of curvature R 2 of the connecting portion of umbrella portion and umbrella portion, before the leading section contact umbrella portion and the connecting portion between the umbrella portion of scale, the leading section of scale contacts with umbrella portion, by in this state scale further being inserted, to the open direction stress application of umbrella portion and umbrella portion.
2, the defect inspection method of insulator umbrella as claimed in claim 1 portion is characterized by, and utilizes stress detection mechanism to detect because the insertion of scale is added in the stress between umbrella portion and the umbrella portion, according to the defective of the stress detection umbrella portion of detecting.
3, the defect inspection method of insulator umbrella as claimed in claim 1 or 2 portion is characterized by, and detects by stress detection mechanism and inserts scale and be applied to the stress between umbrella portion and the umbrella portion and it is stored and manage.
4, the defect detecting device of a kind of insulator umbrella portion is a device of implementing the defect inspection method of the described insulator umbrella of claim 1 portion, it is characterized by, by constituting with the lower part: the base that the insulator of examine is installed; Be arranged on the base, can insert/extract the umbrella portion of mounted insulator and a plurality of scales between the umbrella portion; Be arranged on the mounted insulator, obtain and be added in the stress detection mechanism that the stress between umbrella portion and the umbrella portion is used; In the action of control scale, detect the defect Control mechanism of insulator umbrella portion according to the stress between umbrella portion that is added in that obtains with stress detection mechanism and the umbrella portion.
5, the defect detecting device of a kind of insulator umbrella portion is a device of implementing the defect inspection method of the described insulator umbrella of claim 2 portion, it is characterized by, by constituting with the lower part: the base that the insulator of examine is installed; Be arranged on the base, can insert/extract the umbrella portion of mounted insulator and a plurality of scales between the umbrella portion; Be arranged on the mounted insulator, obtain and be added in the stress detection mechanism that the stress between umbrella portion and the umbrella portion is used; In the action of control scale, detect the defect Control mechanism of insulator umbrella portion according to the stress between umbrella portion that is added in that obtains with stress detection mechanism and the umbrella portion.
6, the defect detecting device of a kind of insulator umbrella portion is a device of implementing the defect inspection method of the described insulator umbrella of claim 3 portion, it is characterized by, by constituting with the lower part: the base that the insulator of examine is installed; Be arranged on the base, can insert/extract the umbrella portion of mounted insulator and a plurality of scales between the umbrella portion; Be arranged on the mounted insulator, obtain and be added in the stress detection mechanism that the stress between umbrella portion and the umbrella portion is used; In the action of control scale, detect the defect Control mechanism of insulator umbrella portion according to the stress between umbrella portion that is added in that obtains with stress detection mechanism and the umbrella portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP74394/01 | 2001-03-15 | ||
| JP2001074394A JP3774122B2 (en) | 2001-03-15 | 2001-03-15 | Method and apparatus for detecting defects in insulators |
| JP74394/2001 | 2001-03-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1375837A CN1375837A (en) | 2002-10-23 |
| CN1173374C true CN1173374C (en) | 2004-10-27 |
Family
ID=18931671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021071977A Expired - Fee Related CN1173374C (en) | 2001-03-15 | 2002-03-15 | Method and apparatus for detecting bevel part of insulator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3774122B2 (en) |
| CN (1) | CN1173374C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117109905B (en) * | 2023-10-18 | 2024-01-05 | 山西三新铸造有限公司 | Automatic detection equipment and detection method for insulator steel cap test gauge |
-
2001
- 2001-03-15 JP JP2001074394A patent/JP3774122B2/en not_active Expired - Fee Related
-
2002
- 2002-03-15 CN CNB021071977A patent/CN1173374C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002279842A (en) | 2002-09-27 |
| CN1375837A (en) | 2002-10-23 |
| JP3774122B2 (en) | 2006-05-10 |
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