CN102679932B - Diagonal line measuring tool of power boiler cold bend pipe - Google Patents
Diagonal line measuring tool of power boiler cold bend pipe Download PDFInfo
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- CN102679932B CN102679932B CN201210172972.XA CN201210172972A CN102679932B CN 102679932 B CN102679932 B CN 102679932B CN 201210172972 A CN201210172972 A CN 201210172972A CN 102679932 B CN102679932 B CN 102679932B
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- bend pipe
- adjusting rod
- diagonal line
- cold bending
- end cap
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Abstract
The invention discloses a diagonal line measuring tool of a power boiler cold bend pipe. The diagonal line measuring tool comprises an end cover, wherein one side of the end cover is provided with a bayonet, and the bayonet is matched with a pipe port of the cold bend pipe to be detected; the centre of the end cover is vertically connected with adjustment rods, and the adjustment rods deviating from one side of the bayonet stretch out; two pipe ports of the cold bend pipe to be detected respectively correspond to one diagonal line measuring tool of the power boiler cold bend pipe provided by the invention, and each pipe port of the cold bend pipe to be detected is respectively inserted into a groove of the end cover; and working personnel can use measuring tools such as rulers to measure the distance of rod tops of the two adjustment rods, the measured value is compared with the theory corrected value, and the conclusion that whether the quality of the cold bend pipe is qualified to be obtained. The diagonal line measuring tool of the power boiler cold bend pipe provided by the invention does not needs to carry out complicated operation such as working site staking out, and the detection efficiency is improved; and the labour intensity is reduced in detection, thereby accelerating production flow, reducing the production cost, avoiding casual inspection (staking out measurement), causing unacceptable product leave factory phenomenon, and improving ex factory pass rate.
Description
Technical field
The present invention relates to a kind of station boiler cold bending quality detection device.
Background technology
The anglec of rotation that station boiler cold bending caliber is little, bend pipe quantity many and major part is all had living space.At present, judge the method whether bending quality is qualified, be by sampling observation (at ground setting out survey), the distance of the curvature of bend pipe and two mouths of pipe (what obtain when setting-out is the distance that bend pipe is overlooked two mouths of pipe under state) compared with its theoretical value, thereby judge that whether bending quality is qualified.The defect of this method is comparatively complicated, comparatively trouble of unwrapping wire, measurement, and work efficiency is very low, is generally sampling observation in proportion, the phenomenon that easily causes substandard product to dispatch from the factory.In the time that bend pipe quantity is more, detect bending quality by the bottleneck portion becoming in production procedure.
Through inventor's research, find determining under the prerequisite that cold bending quantity, bend pipe angle and direction are correct, whether judgement bending quality that can be very fast by measurement cold bending diagonal line (diagonal line is the air line distance between cold bending two centers, mouth of pipe end) method is qualified, while being cold bending diagonal line identical with its theoretical value (or error in allowed limits), cold bending is up-to-standard, otherwise defective.But the art is not found this method at present, is not certainly used for measuring the cornerwise device of cold bending yet.
Summary of the invention
The object of the present invention is to provide a kind of station boiler cold bending diagonal line to measure frock.
For achieving the above object, station boiler cold bending diagonal line of the present invention is measured frock and is comprised end cap, and end cap one side is provided with bayonet socket, and the mouth of pipe of described bayonet socket and cold bending to be checked is suitable; End cap central vertical is connected with adjusting rod, and adjusting rod is stretched out to a side that deviates from described bayonet socket; Adjusting rod is consistent with the center line of end cap, and when use, end cap is consistent with the cold bending center line at mouth of pipe place.
Described bayonet socket is groove structure, and the mouth of pipe of described groove and cold bending to be checked is suitable.
The free end of described adjusting rod is tapered end, the rod point that the tip of tapered end is described adjusting rod, and this rod point is positioned on the center line of adjusting rod.
Described adjusting rod is screwed onto on described end cap, and the both sides in end cap in adjusting rod are bolted with gland nut, and gland nut is pressed on adjusting rod on described end cap.
The present invention has advantages of as follows:
1. the present invention is simple in structure, easy to use.Before use, need first to calculate the cornerwise theoretical modified value of cold bending, the cornerwise length value drawing after the mouth of pipe center axially-extending (extending length is identical with the distance that adjusting rod rod point stretches out the mouth of pipe) of this theory modified value by standard cold bending.When use, two mouths of pipe of a cold bending to be checked respectively corresponding station boiler cold bending diagonal line of the present invention are measured frock, and each mouth of pipe of cold bending to be checked inserts respectively in end cap groove (bayonet socket).Because adjusting rod is vertically connected on end cap, therefore the center line of adjusting rod is identical with the center line of cold bending opening part to be checked, now staff measures the distance between two adjusting rod Bang Duan centers with survey instruments such as rulers, it is Diagonal Dimension, measured value is compared with theoretical modified value, can draw the whether up-to-standard conclusion of cold bending.Use station boiler cold bending diagonal line of the present invention to measure frock, need not on-the-spot unwrapping wire etc. complex operations, improve detection efficiency, reduce the labour intensity while detection, thereby speed production flow process, reduce production costs, the phenomenon of avoiding sampling observation (setting out survey) to cause substandard product to dispatch from the factory, has improved ex factory pass rate.
2. the setting of tapered end, makes staff in the time measuring, and need not find the center of adjusting rod again, directly measures the distance between two rod points, and further facilitate and measured operation, improved measurement efficiency, thus further speed production flow process.
3. described in, adjusting rod is screwed onto on described end cap, is convenient to install manufacture, and is also convenient to the length that (while having obstacle as measured the diagonal line of cold bending) regulates adjusting rod to stretch out end cap as required in measuring process.Both sides in end cap in adjusting rod are bolted with gland nut, can adjusting rod be pressed on described end cap by gland nut, ensure the length dimension of rod point to mouth of pipe end.
4. according to measured cold bending external diameter difference, the end cap of designing and making different size, realizes the cornerwise measurement of different size cold bending.
5. it is common that frock is used material, and processing is simple, and cost of manufacture is low; Easy to operate, easily realize.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, station boiler cold bending diagonal line of the present invention is measured frock and is comprised end cap 1, and end cap 1 one sides are provided with bayonet socket, and bayonet socket is preferably arranged to groove 2, and described groove 2 is suitable with the mouth of pipe of cold bending to be checked; End cap 1 central vertical is connected with adjusting rod 3, and when work, the center line of adjusting rod 3 is consistent with the center line of cold bending opening part to be checked, and adjusting rod 3 is stretched out to a side that deviates from described groove 2.Adjusting rod is consistent with the center line of end cap, and when use, end cap is consistent with the cold bending center line at mouth of pipe place.
The free end of described adjusting rod 3 is tapered end 4, and the tip of tapered end 4 is the rod point 5 of described adjusting rod 3, and this rod point 5 is positioned on the center line of adjusting rod 3.
Described adjusting rod 3 is screwed onto on described end cap 1, in adjusting rod 3, is bolted with gland nut 6 in the both sides of end cap 1, and gland nut 6 is pressed on adjusting rod 3 on described end cap 1.
When manufacture, determine the diameter of described end cap groove 2 according to the concrete size of cold bending to be checked, make end cap groove 2 suitable with the mouth of pipe of cold bending to be checked.Preferably make external diameter+1.5 millimeter of the internal diameter=cold bending to be checked of groove 2.
When use, be first that staff passes through range estimation, determine that quantity, the bend pipe angle and direction of bend pipe is all correct.Due to not precision optical machinery of station boiler itself, artificial visually examine's error within the range of permission.
Then staff covers respectively a station boiler cold bending diagonal line measurement frock of the present invention at two mouths of pipe of cold bending to be checked, stretches in described end cap groove 2 by the mouth of pipe of cold bending to be checked.Because adjusting rod 3 is vertically connected on end cap 1, therefore the center line of adjusting rod 3 is identical with the center line of cold bending opening part to be checked.
Finally to measure distance between two adjusting rods rod points 5 (because rod point 5 is positioned on adjusting rod 3 center lines with survey instruments such as rulers, and adjusting rod 3 and the concentricity line of cold bending opening part to be checked, therefore two rod points 5 are all on the center line in cold bending to be checked), compare with the cornerwise theoretical value of revised cold bending computed in advance, draw the conclusion that whether up-to-standard cold bending is.The cornerwise theoretical value of described revised cold bending is the cornerwise length value drawing after the mouth of pipe center axially-extending of standard cold bending (extending length is identical with the distance that adjusting rod rod point 5 stretches out the mouth of pipe).
Use station boiler cold bending diagonal line of the present invention to measure frock, need not on-the-spot unwrapping wire etc. complex operations, improve detection efficiency, reduce the labour intensity while detection, thereby speed production flow process, reduce production costs, the phenomenon of avoiding sampling observation (setting out survey) to cause substandard product to dispatch from the factory, has improved ex factory pass rate.
Certainly, the present invention includes but be not limited to the present embodiment, the various conventional conversion of doing on basis of the present invention, as the structure of bayonet socket also can be made by groove into other bayonet socket shapes such as buckle; Within this type of conversion all drops on protection scope of the present invention.
Claims (4)
1. station boiler cold bending diagonal line is measured frock, it is characterized in that: comprise end cap, end cap one side is provided with bayonet socket, and the mouth of pipe of described bayonet socket and cold bending to be checked is suitable; End cap central vertical is connected with adjusting rod, and adjusting rod is stretched out to a side that deviates from described bayonet socket; Adjusting rod is consistent with the center line of end cap, and when use, end cap is consistent with the cold bending center line at mouth of pipe place.
2. station boiler cold bending diagonal line according to claim 1 is measured frock, it is characterized in that: described bayonet socket is groove structure, and the mouth of pipe of described groove and cold bending to be checked is suitable.
3. station boiler cold bending diagonal line according to claim 2 is measured frock, it is characterized in that: the free end of described adjusting rod is tapered end, and the rod point that the tip of tapered end is described adjusting rod, this rod point is positioned on the center line of adjusting rod.
4. measure frock according to the station boiler cold bending diagonal line described in any one in claims 1 to 3, it is characterized in that: described adjusting rod is screwed onto on described end cap, both sides in end cap in adjusting rod are bolted with gland nut, and gland nut is pressed on adjusting rod on described end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210172972.XA CN102679932B (en) | 2012-05-30 | 2012-05-30 | Diagonal line measuring tool of power boiler cold bend pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210172972.XA CN102679932B (en) | 2012-05-30 | 2012-05-30 | Diagonal line measuring tool of power boiler cold bend pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102679932A CN102679932A (en) | 2012-09-19 |
| CN102679932B true CN102679932B (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210172972.XA Active CN102679932B (en) | 2012-05-30 | 2012-05-30 | Diagonal line measuring tool of power boiler cold bend pipe |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387331Y (en) * | 2009-03-31 | 2010-01-20 | 新乡天丰机械制造有限公司 | Cold roll forming device and swing rod detecting device thereof |
| CN201404978Y (en) * | 2009-03-20 | 2010-02-17 | 武汉钢铁(集团)公司 | Cold bending pipe device |
| CN202599386U (en) * | 2012-05-30 | 2012-12-12 | 河南华电金源管道有限公司 | Diagonal measuring tool for cold bends of power station boilers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55144340A (en) * | 1979-04-27 | 1980-11-11 | Mitsubishi Heavy Ind Ltd | Bending device of finned pipe |
-
2012
- 2012-05-30 CN CN201210172972.XA patent/CN102679932B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201404978Y (en) * | 2009-03-20 | 2010-02-17 | 武汉钢铁(集团)公司 | Cold bending pipe device |
| CN201387331Y (en) * | 2009-03-31 | 2010-01-20 | 新乡天丰机械制造有限公司 | Cold roll forming device and swing rod detecting device thereof |
| CN202599386U (en) * | 2012-05-30 | 2012-12-12 | 河南华电金源管道有限公司 | Diagonal measuring tool for cold bends of power station boilers |
Non-Patent Citations (4)
| Title |
|---|
| JP昭55-144340A 1980.11.11 |
| 崔保香.电站管道工厂化制造中冷弯管伸长量的测定及应用.《安装》.2010,(第12期),第24-27页. |
| 杨秀芳等.成型冷弯管的检测技术分析.《西部大开发（中旬刊）》.2011,(第1期),第71页、85页. * |
| 电站管道工厂化制造中冷弯管伸长量的测定及应用;崔保香;《安装》;20101231(第12期);第24-27页 * |
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| CN102679932A (en) | 2012-09-19 |
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