CN103267504B - Measurement instrument for ellipticity of circular tube - Google Patents
Measurement instrument for ellipticity of circular tube Download PDFInfo
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- CN103267504B CN103267504B CN201310144620.8A CN201310144620A CN103267504B CN 103267504 B CN103267504 B CN 103267504B CN 201310144620 A CN201310144620 A CN 201310144620A CN 103267504 B CN103267504 B CN 103267504B
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Abstract
Measurement instrument for ellipticity of circular tube, upper surface roller is fixed on instrument case top, laser range sensor, single-chip microcomputer, display screen, gyroscope and accelerometer is distributed with in instrument case, be connected with thin expansion link bottom instrument case, thin expansion link is enclosed within thick expansion link, there is roller axle thick expansion link bottom, and roller shaft end has lower end vertical plane roller, and fulcrum point is fixed on the bottom of thick expansion link.Thin expansion link and thick expansion link are connected to press from both sides by cylindrical telescopic bar and connect, and thick expansion link is connected with the vertical roller in lower surface by the folder that is connected.Rechargeable battery and charging socket is had in instrument case.Structure of the present invention is simple, and one man operation, measurements and calculations complete automatically, can obtain the multi-group datas such as ovality, girth, diameter simultaneously, can conveniently, efficient, high-precision in all case use.
Description
Technical field
The invention belongs to measurement mechanism field, be related specifically to the measurement of the data such as steel pipe ovality and diameter girth.
Background technology
At present, the ellipticity measurement method of known larger caliber steel pipe mainly contains: steel tape multiple spot trombone slide mouth diameter method, pit gauge method and laser stripe scanning mouth of pipe method.Steel tape multiple spot trombone slide mouth diameter method and pit gauge method, all manually multimetering is carried out to pipe diameter, obtain the absolute value of internal diameter or relative value, manually calculate comparatively major axis and comparatively minor axis, the defect of this method mainly contains that (1) has that measuring accuracy is low, precision is more than 1 millimeter; (2) by human brain memory measurement result, error probability is high; (3) overall measurement inefficiency.Laser stripe scanning mouth of pipe method, be camera is loaded on one can around the mouth of pipe center of circle rotate long-armed on, the mouth of pipe laser stripe image computing machine photographed by camera carries out graphical treatment, and then calculate the ovality data of this figure, this device structure is complicated, mechanical action step is many, and measuring speed slowly, also needs other electromechanical equipment to coordinate, and the dirigibility of measurement occasion is low, efficiency is low.
Summary of the invention
The object of the present invention is to provide a kind of intelligent digitalized measurement instrument for ellipticity of circular tube, this measuring instrument is without the need to artificial memory and calculating, one people's one hand can operate, can by ovality, girth, the data such as diameter are presented on screen, and structure is simple, and measuring accuracy is high, simple to operation, adapt to various measurement occasion, dirigibility is high.
For achieving the above object, technical scheme of the present invention is:
Measurement instrument for ellipticity of circular tube, it is characterized in that: this measuring instrument comprises upper end vertical plane roller, instrument case, laser range sensor, gyroscope, accelerometer, thin expansion link, cylindrical telescopic bar connects folder, thick expansion link, fulcrum point, lower end vertical plane roller, wherein upper surface roller is fixed on instrument case top, laser range sensor is distributed with in instrument case, single-chip microcomputer, display screen, gyroscope and accelerometer, be connected with thin expansion link bottom instrument case, thin expansion link is enclosed within thick expansion link, there is roller axle thick expansion link bottom, roller shaft end has lower end vertical plane roller, fulcrum point is fixed on the bottom of thick expansion link.
Thin expansion link and thick expansion link are connected to press from both sides by cylindrical telescopic bar and connect, and thick expansion link is connected with the vertical roller in lower surface by the folder that is connected.
Rechargeable battery and charging socket is had in instrument case.
Good effect of the present invention is: this measuring instrument can capture the longest diameter of pipe, choose the diameter data that different measurement points will obtain one group of mouth of pipe different parts, single-chip microcomputer carries out computing and compares, automatically the ovality data of this mouth of pipe are obtained, gyroscope and accelerometer combination will obtain the bearing data of sounding rod, ovality data and bearing data are through single-chip microcomputer graphical treatment, be presented on the liquid crystal display of this hand-held measuring appliance with the form of chart and figure, whole process operator only needs hand-held measuring appliance to streak one section of arc length, instrument will complete measurement automatically, calculate and display.The laser range sensor of 0.1 millimeter of precision due to what adopt, so measuring accuracy can reach 0.1 millimeter.Structure of the present invention is simple, and one man operation, measurements and calculations complete automatically, can obtain the multi-group datas such as ovality, girth, diameter simultaneously, can conveniently, efficient, high-precision in all case use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is using state figure of the present invention.
Embodiment
The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing 1-2.
See Fig. 1-2: during use, fulcrum point 27 is butted on the inwall of tested steel pipe, upper end vertical plane roller 1 and lower end vertical plane roller 28 are against the end face of tested steel pipe respectively, just can ensure that measuring instrument plane is parallel with Steel pipe end surface by two upper end vertical planes 1 on measuring instrument top with the lower end vertical plane 28 of bottom, press and measure button 8, laser range sensor 6 launches laser beam 3, the data that Laser Measuring obtains will pass in single-chip microcomputer 10 carries out logical operation and storage and gives showing on display screen 11, then keep fulcrum point 27 positions motionless, by vertical for the upper end on Steel pipe end surface roller about 1 paddling two orientation, to obtain two groups of different data, gyroscope 12 and accelerometer 13, can the speed of sense operation people paddling and orientation, and data are passed in single-chip microcomputer 10, now Laser Measuring obtains double bottom and a high point, by single-chip microcomputer 10 these data controlled and analyze, capture a maximal value accurately.Then move the fulcrum point 27 of internal wall of pipe orifice, carry out double measurement, method as above.One group of new measurement data will be obtained like this, single-chip microcomputer 10 carries out logical operation and analysis to these data, automatically the ovality data of this steel pipe are provided, simultaneously according to the outer diameter of steel pipes parameter setting modified value in advance, the outer diameter of steel pipes data at each position of automatic acquisition and circumference datum.
Because thin expansion link 19 and thick expansion link 21 in the present invention are for being inserted in structure, and by cylindrical telescopic bar connection folder 20, thickness two expansion links are fixedly clamped, thick expansion link is connected by the vertical roller 28 in be connected folder 23 and lower surface, by regulating cylindricality expansion link to connect folder 20 and the folder 23 that is connected, namely the collapsing length of the thin expansion link of adjustable 19 and thick expansion link 21 is with the measurement demand of satisfied different steel pipe.Instrument case of the present invention 5 li, due to rechargeable battery 7 and charging socket 14, is not subject to the restriction of territorial environment.And the present invention only needs one man operation, convenient, flexible.
Claims (3)
1. measurement instrument for ellipticity of circular tube, it is characterized in that: this measuring instrument comprises upper end vertical plane roller (1), instrument case (5), laser range sensor (6), gyroscope (12), accelerometer (13), thin expansion link (19), cylindrical telescopic bar connects folder (20), thick expansion link (21), fulcrum point (27), lower end vertical plane roller (28), wherein upper end vertical plane roller (1) is fixed on instrument case (5) top, laser range sensor (6) is distributed with in instrument case, single-chip microcomputer (10), display screen (11), gyroscope (12) and accelerometer (13), instrument case (5) bottom is connected with thin expansion link (19), thin expansion link (19) is enclosed within thick expansion link (21), there is roller axle (22) thick expansion link (21) bottom, roller axle (22) end has lower end vertical plane roller (28), fulcrum point (27) is fixed on the bottom of thick expansion link (21).
2. measurement instrument for ellipticity of circular tube according to claim 1, it is characterized in that: thin expansion link (19) and thick expansion link (21) are connected by cylindrical telescopic bar and press from both sides (20) and connect, and thick expansion link (21) is connected with lower end vertical plane roller (28) by the folder (23) that is connected.
3. measurement instrument for ellipticity of circular tube according to claim 1, is characterized in that: have rechargeable battery (7) and charging socket (14) in instrument case (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310144620.8A CN103267504B (en) | 2013-04-24 | 2013-04-24 | Measurement instrument for ellipticity of circular tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310144620.8A CN103267504B (en) | 2013-04-24 | 2013-04-24 | Measurement instrument for ellipticity of circular tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103267504A CN103267504A (en) | 2013-08-28 |
| CN103267504B true CN103267504B (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310144620.8A Active CN103267504B (en) | 2013-04-24 | 2013-04-24 | Measurement instrument for ellipticity of circular tube |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567399B (en) * | 2019-07-31 | 2021-07-27 | 武汉船用机械有限责任公司 | Auxiliary detection equipment and detection method for hole |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2676142Y (en) * | 2003-12-18 | 2005-02-02 | 东风汽车有限公司 | Mechanical automatic roundness measuring mechanism |
| DE102006046508A1 (en) * | 2006-09-29 | 2008-04-03 | Energie-Umwelt-Beratung E.V. -Institut- | Large tubular component`s inner roundness measuring method, involves moving actuator of measuring rod in longitudinal axis such that distance sensors are driven at ends of rod, where center positioning of measuring device is balanced |
| CN102435124A (en) * | 2011-09-08 | 2012-05-02 | 中冶辽宁德龙钢管有限公司 | Steel pipe out-of-roundness measuring method and measuring scale thereof |
| CN203249602U (en) * | 2013-04-24 | 2013-10-23 | 中石化石油工程机械有限公司沙市钢管厂 | Circular tube ovality measuring instrument |
-
2013
- 2013-04-24 CN CN201310144620.8A patent/CN103267504B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2676142Y (en) * | 2003-12-18 | 2005-02-02 | 东风汽车有限公司 | Mechanical automatic roundness measuring mechanism |
| DE102006046508A1 (en) * | 2006-09-29 | 2008-04-03 | Energie-Umwelt-Beratung E.V. -Institut- | Large tubular component`s inner roundness measuring method, involves moving actuator of measuring rod in longitudinal axis such that distance sensors are driven at ends of rod, where center positioning of measuring device is balanced |
| CN102435124A (en) * | 2011-09-08 | 2012-05-02 | 中冶辽宁德龙钢管有限公司 | Steel pipe out-of-roundness measuring method and measuring scale thereof |
| CN203249602U (en) * | 2013-04-24 | 2013-10-23 | 中石化石油工程机械有限公司沙市钢管厂 | Circular tube ovality measuring instrument |
Non-Patent Citations (1)
| Title |
|---|
| 智能激光圆度测量仪研究;罗杰;《舰船电子工程》;20121231;第32卷(第10期);119-122 * |
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| CN103267504A (en) | 2013-08-28 |
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Address after: 434000 Jingzhou, Hubei, Sha District, Beijing East Road, No. 2 Patentee after: SHASHI STEEL PIPE BRANCH OF SINOPEC PETROLEUM MACHINERY CO.,LTD. Address before: 434000 Jingzhou, Hubei, Sha District, Beijing East Road, No. 2 Patentee before: SHASHI STEEL PIPE FACTORY, SINOPEC PETROLEUM ENGINEERING MACHINERY CO.,LTD. |
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Effective date of registration: 20170926 Address after: 434000 Jingzhou, Hubei, Sha District, Beijing East Road, No. 2 Co-patentee after: SINOPEC OILFIELD EQUIPMENT Corp. Patentee after: SHASHI STEEL PIPE BRANCH OF SINOPEC PETROLEUM MACHINERY CO.,LTD. Address before: 434000 Jingzhou, Hubei, Sha District, Beijing East Road, No. 2 Patentee before: SHASHI STEEL PIPE BRANCH OF SINOPEC PETROLEUM MACHINERY CO.,LTD. |