CN105547114B - Out-of-roundness detection tape measure and its application method - Google Patents
Out-of-roundness detection tape measure and its application method Download PDFInfo
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- CN105547114B CN105547114B CN201510923449.XA CN201510923449A CN105547114B CN 105547114 B CN105547114 B CN 105547114B CN 201510923449 A CN201510923449 A CN 201510923449A CN 105547114 B CN105547114 B CN 105547114B
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- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 12
- 210000003739 neck Anatomy 0.000 claims abstract description 47
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 claims abstract description 4
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
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- Tape Measures (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses out-of-roundness detection tape measure and its application method, including tape measure housing and stretching in the scale in tape measure housing, the end of scale is provided with grab, multiple necks are provided with scale, multiple necks be arranged in parallel, in addition to the magnet for being used to being fixed on tape measure into testee surface that an activity is set.The beneficial effects of the invention are as follows：By the neck set on scale, when operator thinks the transverse end points that certain is pipeline, grab is stuck in neck, by grab, realizes first of fixation；Fixed magnet, carries out second and fixes, artificial fixation is eliminated, while saving manpower so that measurement is more accurate；By the setting of fluorescence coating, realize under dim environment, can also realize the accurate assurance to pipeline ovality.
Description
Technical field
The present invention relates to the detection of the out-of-roundness of pipeline, and in particular to out-of-roundness detection tape measure and its application method.
Background technology
To station boiler, the detection of out-of-roundness is an important indicator for examining tube bends or elbow quality, in reality
In, at present frequently with measuring method be caliper measurements：When measuring maximum gauge, a pincers pin leans against bend pipe or elbow side,
Another pincers pin is slided along pipe surface circumferencial direction, is stopped sliding when distance reaches maximum between two pincers pin, is kept clamp to open
Mouth size is constant, and it is removed from pipeline, the distance between two pincers pin are measured with measuring scale, is a measured direction
On diameter.Minimum diameter can similarly be measured, except that should two pincers pin between distance reach minimum when stop slide；
But there is the defect of following several respects in this course：
1) in real work, when being detected at dark, it usually needs carrying out illumination by external light source could be carried out
Detection, if without external light source or external light source it is weaker in the case of, directly influence whether measurement the degree of accuracy；
2) because of tape measure it is pipeline, if pipe diameter is larger, a staff should fix tape measure, also simultaneously
Need to operate calliper, it is very inconvenient.
3) because the position of tape measure and calliper is not in same circularity, cause measurement accuracy inaccurate.
It is therefore desirable to have a kind of new out-of-roundness detection tape measure.
The content of the invention
The invention aims to provide it is a kind of when measuring pipeline it is convenient fixed, be easy to what is used in dim environment
Out-of-roundness detection tape measure and its application method.
In order to reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
Out-of-roundness detection tape measure, including tape measure housing and stretch in the scale in tape measure housing, the end of scale is provided with
Grab, is provided with multiple necks on scale, and multiple necks be arranged in parallel, and one is movably equipped with each neck is used for volume
Chi is fixed on the magnet on testee surface, is coordinated by grab and neck, then the magnet set by activity fixes tape measure
On the outside of pipeline, the fixation to tape measure is realized.
Further, has fluorescence coating on the graduation mark on the scale, the handle has fluorescence coating, the grab table
The fluorescence coating color that face has is different from the fluorescence coating color that the handle has, and the difference of color is easy to identification grab and magnetic
Iron, the convenient fixation to tape measure.
Further, the width of the grab end is less than or equal to the width of the neck.
Further, the scale is rigid or soft.
Further, the magnet is located in lower house, above lower house be provided with upper shell, handle connection upper shell and
Lower house, the distance that upper shell is set with lower house interval；By the setting of upper shell, lower house and handle, first by grab card
It is fixed in neck, then by magnet.
Further, the magnet is located in a housing, and housing is provided with handle or hole.
Further, the magnet is actively installed at a neck, and the length of neck is 6~12cm, by the way that magnet is consolidated
It is scheduled at neck, coordinates grab to realize the double fixation to tape measure, save labour, measuring speed is fast.
Further, the magnet is actively installed at described grab.
Further, the width of the lower house is less than the width of the neck, and the grab surface has fluorescence coating, institute
Handle surfaces are stated with fluorescence coating.
The application method of described tape measure, is comprised the following steps that：
1) by searching out the inner arc center and Bei Hu centers of bend pipe or elbow with off-balancesheet calliper；
2) two gauge heads with off-balancesheet calliper are slided near bend pipe neutral surface along the surface of bend pipe or elbow；
3) change of observation dial plate registration, searches out the position of ellipse short shaft end points, and be marked on bend pipe or elbow
And record ellipse short shaft distance；
4) tape measure winding bend pipe or elbow one are enclosed and covers two short axle end points, utilize magnet nonadjustable signal；
5) gauge head for representing snap gauge is slided along the neck in the middle of scale, changed while observing registration in dial plate；
6) when registration is maximum in dial plate, two gauge head positions of calliper are transverse end points, write down the registration
Dmax；
7) the out-of-roundness σ of bend pipe or elbow is calculated by formula：
σ=[(Dmax-Dmin)/D] × 100% (1)
Wherein, DmaxTo be surveyed transverse distance, DminFor ellipse short shaft distance, D is the diameter of bend pipe or elbow.
The present invention operation principle be：When using tape measure, when the pipeline that operator measures certain is most thick, pass through
The fluorescence coating of the fluorescence coating and grab on graduation mark is observed, the grab of scale end is stuck in neck, the upper of magnet is will be equipped with
Housing is placed in neck with lower house, blocks grab, the lower house that will be equipped with magnet is placed in neck, the fixed force of magnet
More than screen resilience, rotary handle so that block tape measure between upper shell and lower house, while tape measure and pipeline are fixed on into one
Rise, realize that second is fixed, after fixing, other measurement work are carried out using clamp.
The beneficial effects of the invention are as follows：
1) by the neck set on scale, when operator thinks the thickness that certain is pipeline, grab is stuck in
In neck, by grab, first of fixation is realized；Fixed magnet, carries out second and fixes, eliminate artificial fixation, save
While manpower so that measurement is more accurate.
2) by the setting of fluorescence coating, realize under dim environment, can also realize the accurately handle to pipeline rugosity
Hold.
3) whole measuring method is simple, and calliper is moved in the neck of tape measure, is convenient for measuring, and measurement accuracy is high.
Brief description of the drawings
Fig. 1 is schematic diagram when the middle scale of tape measure opens；
Fig. 2 is the schematic diagram of scale；
Fig. 3 is the body diagram for placing magnet；
Fig. 4 is the set location schematic diagram of magnet in embodiment 2；
Wherein, 1. tape measure housing, 2. scales, 3. grabs, 4. necks, 5. upper shells, 6. handles, 7. magnet, 8. lower houses,
9. rotary shaft.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description.
Embodiment 1
As illustrated in fig. 1 and 2, out-of-roundness detection tape measure, including tape measure housing 1 and stretch in the scale in tape measure housing 1
2, the scale 2 is rigid or soft.The end of scale 2 is provided with grab 3, and multiple necks 4, multiple cards are provided with scale 2
Groove 4 is be arranged in parallel, and a magnet is movably equipped with each neck 4, is coordinated by grab 3 with neck 4, then set by activity
Tape measure is fixed on the outside of pipeline by the magnet put, and realizes the fixation to tape measure, and the length of the length of neck 4 along scale is set.
To ensure the accuracy of measurement, in the case of conditional, the set location of neck 4 on multiple tape measures, each tape measure is set not
Together.
The width of the grab 3 is less than or equal to the width of the neck 4.
Has fluorescence coating on graduation mark on the scale 2.The surface of grab 3 has fluorescence coating, and the handle 6 has
Fluorescence coating, the fluorescence coating color that the fluorescence coating colouring discrimination that the surface of grab 3 has has in handle 6, the difference of color, just
In identification grab 3 and magnet, the convenient fixation to tape measure.
When using tape measure, when the pipeline that operator measures certain is most thick, by observing the fluorescence on graduation mark
The fluorescence coating of layer and grab 3, the grab 3 of the end of scale 2 is stuck in neck 4, magnet is placed in neck 4, grab is blocked
3, magnet is opened, tape measure is fixed together with pipeline, realizes that second is fixed, after fixing, other surveys are carried out using clamp
Work is measured, when transverse end points is in two neck connecting places, can directly be made marks with marker pen.
The magnet is located in lower house 8, and lower house 8 is provided with handle 6, and upper shell 5 is provided with the top of lower house 8,
Hand 6 connects upper shell 5 and lower house 8, and upper shell 5 is spaced the distance of setting with lower house 8, by upper shell 5, lower house 8 and
Grab 3, is first stuck in neck 4, then be fixed by magnet by the setting of handle 6.
The width of the lower house 8 is less than the width of the neck 4, and length is longer than the width of neck 4, lower house 8 is set
In in the neck 4, lower house and upper shell are rotated when fixing, scale 2 is blocked, when upper shell 5 and the width of lower house 8
Respectively less than the width of neck 4 when, it is convenient that the two is removed and inserted into neck 4.
The application method of described tape measure, is comprised the following steps that：
1) by searching out the inner arc center and Bei Hu centers of bend pipe or elbow with off-balancesheet calliper；
2) two gauge heads with off-balancesheet calliper are slided near bend pipe neutral surface along the surface of bend pipe or elbow；
3) change of observation dial plate registration, searches out the position of ellipse short shaft end points, and be marked on bend pipe or elbow
And record ellipse short shaft distance；
4) tape measure winding bend pipe or elbow one are enclosed and covers two short axle end points, utilize the nonadjustable signal 2 of magnet 7；
5) gauge head for representing snap gauge is slided along the neck in the middle of scale, changed while observing registration in dial plate；
6) when registration is maximum in dial plate, two gauge head positions of calliper are transverse end points, write down the registration
Dmax；
7) the out-of-roundness σ of bend pipe or elbow is calculated by formula：
σ=[(Dmax-Dmin)/D] × 100% (1)
Wherein, DmaxTo be surveyed transverse distance, DminFor ellipse short shaft distance, D is the diameter of bend pipe or elbow.
Embodiment 2
The present embodiment and the difference of embodiment 1 are：
By rotary shaft 9 provided with a housing at grab 3, the side of housing central section is fixed in rotary shaft 9, housing
Inside is provided with magnet 7, and magnet 7 presses close to the bottom of enclosure interior, when needing grab 3 being fixed in neck 4, and rotation housing will
Magnet 7 is adsorbed in pipeline palintrope pipe surface, fixed tape measure, and during transverse end points is found, there is magnet housing side
Orientation is away from body or bend pipe, when needing to fix tape measure, housing rotation, and the side for having magnet is adsorbed onto into pipe surface.
Embodiment 3
The present embodiment and the difference of embodiment 1 are：
Magnet is located in a housing, and housing is provided with handle or hole, for facilitating the fixation of magnet with removing.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (2)
1. the application method of out-of-roundness detection tape measure,
Out-of-roundness detection tape measure, including tape measure housing and stretch in the scale in tape measure housing, the end of scale is provided with grab,
Multiple necks are provided with scale, multiple necks be arranged in parallel, are additionally included in the use that activity is set at each neck
In the magnet that tape measure is fixed on to testee surface, the grab surface has on the graduation mark on fluorescence coating, the scale
With fluorescence coating；The width of the grab end is less than or equal to the width of the neck；
The scale is rigid or soft；
The magnet is located in lower house, and upper shell, handle connection upper shell and lower house, upper shell are provided with above lower house
The distance set with lower house interval；
The width of the lower house is less than the width of the neck, and the length of lower house is longer than the width of neck, will when fixing
Lower house is inserted into neck with upper shell, and scale is blocked in rotation, and the handle surfaces have fluorescence coating；
Characterized in that, the application method of the out-of-roundness detection tape measure, is comprised the following steps that：
1) by searching out the inner arc center and Bei Hu centers of bend pipe or elbow with off-balancesheet calliper；
2) two gauge heads with off-balancesheet calliper are slided near bend pipe neutral surface along the surface of bend pipe or elbow；
3) change of observation dial plate registration, searches out the position of ellipse short shaft end points, and be marked and remember on bend pipe or elbow
Record ellipse short shaft distance；
4) tape measure winding bend pipe or elbow one are enclosed and covers two short axle end points, utilize magnet nonadjustable signal；
5) gauge head for representing snap gauge is slided along the neck in the middle of scale, changed while observing registration in dial plate；
6) when registration is maximum in dial plate, two gauge head positions of calliper are transverse end points, write down registration Dmax；
7) the out-of-roundness σ of bend pipe or elbow is calculated by formula：
σ=[(Dmax-Dmin)/D] × 100% (1)
Wherein, DmaxTo be surveyed transverse distance, DminFor ellipse short shaft distance, D is the diameter of bend pipe or elbow.
2. the application method of out-of-roundness detection tape measure according to claim 1, it is characterised in that the out-of-roundness detection
Also included being actively installed on the magnet at the grab with tape measure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923449.XA CN105547114B (en) | 2015-12-11 | 2015-12-11 | Out-of-roundness detection tape measure and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923449.XA CN105547114B (en) | 2015-12-11 | 2015-12-11 | Out-of-roundness detection tape measure and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105547114A CN105547114A (en) | 2016-05-04 |
| CN105547114B true CN105547114B (en) | 2017-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510923449.XA Active CN105547114B (en) | 2015-12-11 | 2015-12-11 | Out-of-roundness detection tape measure and its application method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918166A (en) * | 1973-12-10 | 1975-11-11 | Peter Mason | Head circumference measuring device |
| CN201885643U (en) * | 2010-04-30 | 2011-06-29 | 李明义 | Improved structure of ruler surface of circular-diameter ring ruler |
| CN103267468A (en) * | 2013-05-15 | 2013-08-28 | 张伟 | Roundness detection device |
| CN103398650A (en) * | 2013-08-12 | 2013-11-20 | 北京隆盛泰科石油管科技有限公司 | Ellipticity measuring instrument for tube body and measurement method thereof |
| CN103837067A (en) * | 2014-03-21 | 2014-06-04 | 国家电网公司 | Direct-reading type calipers for measuring ovality of pipeline |
| CN205383952U (en) * | 2015-12-11 | 2016-07-13 | 山东电力工业锅炉压力容器检验中心有限公司 | Tape measure for roundness detection not |
-
2015
- 2015-12-11 CN CN201510923449.XA patent/CN105547114B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918166A (en) * | 1973-12-10 | 1975-11-11 | Peter Mason | Head circumference measuring device |
| CN201885643U (en) * | 2010-04-30 | 2011-06-29 | 李明义 | Improved structure of ruler surface of circular-diameter ring ruler |
| CN103267468A (en) * | 2013-05-15 | 2013-08-28 | 张伟 | Roundness detection device |
| CN103398650A (en) * | 2013-08-12 | 2013-11-20 | 北京隆盛泰科石油管科技有限公司 | Ellipticity measuring instrument for tube body and measurement method thereof |
| CN103837067A (en) * | 2014-03-21 | 2014-06-04 | 国家电网公司 | Direct-reading type calipers for measuring ovality of pipeline |
| CN205383952U (en) * | 2015-12-11 | 2016-07-13 | 山东电力工业锅炉压力容器检验中心有限公司 | Tape measure for roundness detection not |
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| Publication number | Publication date |
|---|---|
| CN105547114A (en) | 2016-05-04 |
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