CN203249602U - Circular tube ovality measuring instrument - Google Patents
Circular tube ovality measuring instrument Download PDFInfo
- Publication number
- CN203249602U CN203249602U CN 201320211961 CN201320211961U CN203249602U CN 203249602 U CN203249602 U CN 203249602U CN 201320211961 CN201320211961 CN 201320211961 CN 201320211961 U CN201320211961 U CN 201320211961U CN 203249602 U CN203249602 U CN 203249602U
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- telescopic rod
- expansion link
- thick
- instrument
- thin
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
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Abstract
A circular tube ovality measuring instrument is provided. Upper end surface leaning wheels are fixed at the top of an instrument box; a laser ranging sensor, a single chip microcomputer, a display, a gyroscope and an accelerometer are distributed inside the instrument box; the bottom of the instrument box is connected with a thin telescopic rod; the thin telescopic rod is sheathed inside a thick telescopic rod; the bottom of the thick telescopic rod is provided with a leaning wheel shaft; the tail end of the wheel leaning shaft is provided with a lower end surface vertical leaning wheel; a fulcrum tip is fixed at the bottom end of the thick telescopic rod; the thin telescopic rod is connected with the thick telescopic rod through a cylindrical telescopic rod connecting clamp; the thick telescopic rod is connected with the lower end surface vertical leaning wheel through a combination connecting clamp; and a rechargeable battery and a charging socket are arranged inside the instrument box. A single person can operate the circular tube ovality measuring instrument of the utility model, and measurement and calculation can be completed automatically, and multiple groups of data such as ovality, perimeter and diameter can be obtained; and the circular tube ovality measuring instrument can be conveniently and efficiently used in any places with high precision.
Description
Technical field
The utility model belongs to the measurement mechanism field, specially refers 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 be manually pipe diameter to be carried out multimetering, obtain absolute value or the relative value of internal diameter, manually calculate than major axis with than minor axis, the defective of this method mainly contains that (1) has that measuring accuracy is low, precision is more than 1 millimeter; (2) by the human brain memory measurement result, error probability is high; (3) the whole inefficiency of measuring.Laser stripe scanning mouth of pipe method, be camera is loaded on one can be on mouth of pipe center of circle rotation long-armed, the mouth of pipe laser stripe image that camera is photographed carries out graphical treatment with computing machine, and then calculate the ovality data of this figure, this device structure is complicated, the mechanical action step is many, and measuring speed slowly, also needs other electromechanical equipment to cooperate, and the dirigibility of measurement occasion is low, efficient is low.
Summary of the invention
The purpose of this utility model is to provide a kind of intelligent digitalized pipe ellipticity measurement instrument, this measuring instrument need not artificial memory and calculating, one people's one hand can operate, can be with ovality, girth, the data such as diameter are presented on the screen, and are simple in structure, and measuring accuracy is high, simple to operation, adapt to various measurement occasions, dirigibility height.
For achieving the above object, the technical solution of the utility model is:
The pipe ellipticity measurement instrument, it is characterized in that: this measuring instrument comprises upper end vertical plane roller, instrument case, laser range sensor, gyroscope, accelerometer, thin expansion link, the cylindrical telescopic bar connects folder, thick expansion link, the fulcrum point, lower end vertical plane roller, wherein the upper surface roller is fixed on the instrument case top, be distributed with laser range sensor in the instrument case, single-chip microcomputer, display screen, gyroscope and accelerometer, the instrument case bottom is connected with thin expansion link, thin expansion link is enclosed within the thick expansion link, there is the roller axle thick expansion link bottom, the roller shaft end has lower end vertical plane roller, and the fulcrum point is fixed on the bottom of thick expansion link.
Thin expansion link is connected folder with thick expansion link by the cylindrical telescopic bar and connects, and thick expansion link is connected with the vertical roller in lower surface by the folder that is connected.
Rechargeable battery and charging socket are arranged in the instrument case.
Good effect of the present utility model 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 relatively, automatically obtain the ovality data of this mouth of pipe, gyroscope and accelerometer combination will obtain the bearing data of sounding rod, ovality data and bearing data are through the single-chip microcomputer graphical treatment, form with chart and figure is presented on the liquid crystal display of this hand-held measuring appliance, whole process operator only needs hand-held measuring appliance to streak one section arc length, and instrument will be finished measurement automatically, calculate and demonstration.Because what adopt is the laser range sensor of 0.1 millimeter precision, so measuring accuracy can reach 0.1 millimeter.The utility model is simple in structure, the one man operation, and measurements and calculations are finished automatically, can obtain simultaneously the multi-group datas such as ovality, girth, diameter, can conveniently, efficient, high-precision in all case use.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model uses constitutional diagram.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing 1-2.
Referring to 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 respectively the end face of tested steel pipe, two upper end vertical planes 1 by the measuring instrument top and the lower end vertical plane 28 of bottom just can guarantee that the measuring instrument plane is parallel with Steel pipe end surface, press and measure button 8, laser range sensor 6 is launched laser beam 3, the data that Laser Measuring gets will pass to carries out logical operation and storage and gives showing at display screen 11 in the single-chip microcomputer 10, then keep fulcrum point 27 positions motionless, with two orientation of vertical roller 1 left and right sides paddling, the upper end on the Steel pipe end surface, to obtain two groups of different data, gyroscope 12 and accelerometer 13, speed and orientation that can sense operation people paddling, and data are passed in the single-chip microcomputer 10, this moment, Laser Measuring got double bottom and a high point, by single-chip microcomputer 10 these data are controlled and analyzed, capture an accurately maximal value.Then the fulcrum point 27 of mobile internal wall of pipe orifice carries out double measurement, and method as above.Will obtain like this one group of new measurement data, single-chip microcomputer 10 carries out logical operation and analysis to these data, automatically provide the ovality data of this steel pipe, simultaneously according to the outer diameter of steel pipes parameter of having set in advance modified value, the outer diameter of steel pipes data at each position of automatic acquisition and all long datas.
Because thin expansion link 19 and thick expansion link 21 are for being inserted in structure in the utility model, and connect folder 20 by the cylindrical telescopic bar two expansion links of thickness are fixedly clamped, thick expansion link is connected with the vertical roller 28 in lower surface by the folder 23 of being connected, can the cylindricality expansion link connects folder 20 and the folder 23 that be connected by regulating, namely the thin expansion link 19 of capable of regulating and slightly the collapsing length of expansion link 21 to satisfy the measurement demand of different steel pipes.5 li of instrument cases of the present invention are not owing to rechargeable battery 7 and charging socket 14, be subjected to the restriction of territorial environment.And the utility model only needs one man operation, convenient, flexible.
Claims (3)
1. pipe ellipticity measurement instrument, 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), the cylindrical telescopic bar connects folder (20), thick expansion link (21), fulcrum point (27), lower end vertical plane roller (28), wherein upper surface roller (1) is fixed on instrument case (5) top, be distributed with laser range sensor (6) in the 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 the 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), and fulcrum point (27) is fixed on the bottom of thick expansion link (21).
2. pipe ellipticity measurement instrument according to claim 1, it is characterized in that: thin expansion link (19) is connected folder (20) with thick expansion link (21) by the cylindrical telescopic bar and connects, and thick expansion link (21) is connected with the vertical roller in lower surface (28) by the folder (23) that is connected.
3. pipe ellipticity measurement instrument according to claim 1 is characterized in that: rechargeable battery (7) and charging socket (14) are arranged in the instrument case (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320211961 CN203249602U (en) | 2013-04-24 | 2013-04-24 | Circular tube ovality measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320211961 CN203249602U (en) | 2013-04-24 | 2013-04-24 | Circular tube ovality measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203249602U true CN203249602U (en) | 2013-10-23 |
Family
ID=49376035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320211961 Withdrawn - After Issue CN203249602U (en) | 2013-04-24 | 2013-04-24 | Circular tube ovality measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203249602U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267504A (en) * | 2013-04-24 | 2013-08-28 | 中石化石油工程机械有限公司沙市钢管厂 | Measurement instrument for ellipticity of circular tube |
| CN103817395A (en) * | 2014-03-14 | 2014-05-28 | 上海气焊机厂有限公司 | Ovality measuring device, intersecting line cutting device and control method |
| CN109596057A (en) * | 2018-12-05 | 2019-04-09 | 辽河石油勘探局有限公司 | Portable steel pipe geometric parameter measurement instrument |
| CN111238412A (en) * | 2020-02-14 | 2020-06-05 | 天津时空经纬测控技术有限公司 | Measuring method, system and storage medium |
-
2013
- 2013-04-24 CN CN 201320211961 patent/CN203249602U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267504A (en) * | 2013-04-24 | 2013-08-28 | 中石化石油工程机械有限公司沙市钢管厂 | Measurement instrument for ellipticity of circular tube |
| CN103267504B (en) * | 2013-04-24 | 2015-09-09 | 中石化石油工程机械有限公司沙市钢管厂 | Measurement instrument for ellipticity of circular tube |
| CN103817395A (en) * | 2014-03-14 | 2014-05-28 | 上海气焊机厂有限公司 | Ovality measuring device, intersecting line cutting device and control method |
| CN109596057A (en) * | 2018-12-05 | 2019-04-09 | 辽河石油勘探局有限公司 | Portable steel pipe geometric parameter measurement instrument |
| CN111238412A (en) * | 2020-02-14 | 2020-06-05 | 天津时空经纬测控技术有限公司 | Measuring method, system and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131023 Effective date of abandoning: 20150909 |
|
| RGAV | Abandon patent right to avoid regrant |