CN114909972B - Pipeline axis parallel line positioning device, section positioning device and positioning method - Google Patents
Pipeline axis parallel line positioning device, section positioning device and positioning method Download PDFInfo
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- CN114909972B CN114909972B CN202210545076.7A CN202210545076A CN114909972B CN 114909972 B CN114909972 B CN 114909972B CN 202210545076 A CN202210545076 A CN 202210545076A CN 114909972 B CN114909972 B CN 114909972B
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- 230000000712 assembly Effects 0.000 claims abstract description 28
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- 238000005259 measurement Methods 0.000 claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 11
- 238000004364 calculation method Methods 0.000 description 3
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention belongs to the technical field of pipeline construction, and provides a pipeline axis parallel line positioning device which comprises two measuring components, wherein each measuring component comprises a positioning rod, a fixed probe and a range finder, the fixed probe is vertically arranged below one end of the positioning rod, the range finder is vertically arranged below the positioning rod, the lowest point of the fixed probe is lower than the lowest point of the range finder, the vertical axis of the fixed probe and the vertical axis of the range finder are coplanar A, the positioning rods of the two measuring components are arranged in parallel at intervals and are connected through a connecting rod vertical to the positioning rods, and the connecting rod is vertical to the plane A; when the fixed probes of the two measuring assemblies are contacted with the pipeline cylindrical surface and the distance between the fixed probes and the pipeline cylindrical surface is the same, the projection points of the two distance measuring devices on the pipeline cylindrical surface are connected with the parallel line of the pipeline axis. The invention has the advantages that the measuring condition is not limited by the environment, the on-site passive measurement can be realized, and even if the pipeline is buried underground, the pipeline can be simply processed, and only a section of pipeline is exposed.
Description
Technical Field
The invention relates to the technical field of pipeline construction, in particular to a pipeline axis parallel line positioning device, a section positioning device and a positioning method.
Background
The positioning of the parallel lines of the pipeline axis and the positioning of the corresponding section cylindrical surface are main foundations for measuring and positioning the pipeline on the basis of the axis.
The positioning of the parallel lines of the pipeline axis and the cylindrical surfaces of the corresponding sections has critical basic conditions for the pipeline application industry, and at present, most of the parallel lines of the pipeline axis and the cylindrical surfaces of the corresponding sections adopt scanning technologies such as gratings, images and the like, but due to the limitation of field conditions, many large-caliber pipelines are buried underground and cannot be exposed completely, and some pipelines are buried in underground water tanks and cannot be applied to high-end equipment under severe conditions, so that the industrial requirements cannot be met; meanwhile, in the detection industry, a traditional tape or a clamp is adopted as a simple device for calculation and positioning, but final data are obtained through measurement of the simple tape and calculation, so that the calculation and positioning of the parallel lines and the cylindrical surfaces of the axes of the pipelines are obviously not scientific and high in accuracy, and the required parallel lines and the cylindrical sections of the axes cannot be really found through the simple clamp.
The pipeline axis parallel line positioning device shown in fig. 1 comprises a plurality of angle positioners and laser transmitters, wherein 1-6 corresponding to parallel lines of an axis vertical line is firstly found through a clamp 1-5, then one point on the axis parallel line is found through a laser line on a laser projection mechanism 1-7, then an end face (also a cross section) perpendicular to the pipeline axis is found through a three-point determining surface principle of a component assembled by a fixing mechanism 1-2, an angle positioning mechanism 1-3 and a paying-off mechanism 1-4, and finally the pipeline axis parallel line is determined through a principle that two points are arranged on the axis parallel line is found through a laser point emitted by a laser transmitter at the tail end of a line protection mechanism 1-4 and a laser line on the laser projection mechanism 1-7. The assembly formed by the fixing mechanism 1-2, the angle positioning mechanism 1-3 and the paying-off mechanism 1-4 of the positioning device must be installed at the end part of a pipeline and is an open end, the pipeline which is installed on site generally has no opening, even if the pipeline has the opening, the searching position is limited, and only the position near the opening, namely the tail end position of the pipeline, can be searched; the positioning device has more movable parts, for example, the centers of the angle positioning mechanism 1-3 and the paying-off mechanism 1-4 are movably connected, and gaps can be generated at the connecting positions due to excessive use, and unexpected errors can be generated, so that the precision is reduced; the positioning laser point of the positioning device must be high-performance laser, and if the laser point becomes larger along with the distance point, errors can be generated; the locating device has short service life and high cost.
Disclosure of Invention
The invention aims to solve the technical problem of providing the pipeline axis parallel line positioning device, the section positioning device and the positioning method, which are simple and reasonable in structure, free from limitation of measurement conditions, capable of realizing on-site passive measurement, capable of performing positioning operation on any section of a pipeline, and capable of simply processing even if the pipeline is buried underground, and only one section is exposed.
In order to solve the technical problems, the embodiment of the invention provides a pipeline axis parallel line positioning device, which comprises two measuring assemblies, wherein each measuring assembly comprises a positioning rod, a fixed probe and a range finder, the fixed probe is vertically arranged below one end of the positioning rod, the range finder is vertically arranged below the positioning rod, the lowest point of the fixed probe is lower than the lowest point of the range finder, the vertical axis of the fixed probe and the vertical axis of the range finder are coplanar A, the positioning rods of the two measuring assemblies are arranged in parallel at intervals and are connected through a connecting rod vertical to the positioning rods, and the connecting rod is vertical to the surface A;
when the two fixed probes of the measuring assembly are in contact with the pipeline cylindrical surface and the two distance measuring devices measure the same distance from the pipeline cylindrical surface, the connection between projection points of the two distance measuring devices on the pipeline cylindrical surface is a pipeline axis parallel line.
Wherein, range finder selects the range sensor to use.
The range finder can also select a displacement measuring meter, be equipped with the range finder mounting hole on the locating lever, the displacement measuring meter includes dial plate, pointer and slide bar, the lower extreme of dial plate is the sleeve, the sleeve is pegged graft in the range finder mounting hole, be equipped with displacement scale on the dial plate, the pointer passes through the center pin joint of minor axis and dial plate, the rear end of minor axis is equipped with the gear, the lower extreme of slide bar is displacement probe, and the upper end upwards stretches out to the side of gear from the sleeve, the upper portion side of slide bar is equipped with the rack, rack and gear engagement.
The fixed probe comprises a fixed probe rod and a probe arranged at the lower end of the fixed probe rod, and the upper end of the fixed probe rod is fixedly connected with the lower part of the end part of the positioning rod.
Preferably, the probe and the displacement probe are both ball heads.
Preferably, the fixed probe rod and the positioning rod can be telescopic rods or series rods with different lengths, and the fixed probe rods with different lengths can be replaced according to the outer diameter of the pipeline.
The invention also provides a pipeline section positioning device, which comprises the pipeline axis parallel line positioning device, wherein fixed probes are vertically connected below two ends of a positioning rod of a measuring assembly of the pipeline axis parallel line positioning device, the range finder is arranged in the middle of the positioning rod, and the two fixed probes are symmetrically arranged relative to the range finder.
The distance meter is characterized in that a displacement meter is selected for use, a distance meter mounting hole is formed in the positioning rod, the displacement meter comprises a dial plate, a pointer and a slide rod, the lower end of the dial plate is a sleeve, the sleeve is inserted into the distance meter mounting hole, displacement scales are arranged on the dial plate, the pointer is connected with the central shaft of the dial plate through a short shaft, a gear is arranged at the rear end of the short shaft, a displacement probe is arranged at the lower end of the slide rod, the upper end of the slide rod extends upwards to the side of the gear from the sleeve, and a rack is arranged on the side of the upper portion of the slide rod and meshed with the gear.
The invention also provides a method for positioning parallel lines of the pipeline axis, which comprises the following steps:
s1.1, vertically fixing a fixed probe below one end of a positioning rod, and vertically installing a range finder on the positioning rod to ensure that the lowest point of the fixed probe is lower than the lowest point of the range finder; assembling two measuring assemblies according to the steps;
s1.2, connecting positioning rods of the two measuring assemblies by using connecting rods, wherein the end parts of the connecting rods are vertical to the corresponding positioning rods, and the pipeline axis parallel line positioning device is assembled;
s1.3, arranging a pipeline axis parallel line positioning device on the outer side of a pipeline, contacting fixed probes of two measuring assemblies with a pipeline cylindrical surface, measuring the distance between the fixed probes and the pipeline cylindrical surface by using distance meters, and when the distances measured by the two distance meters are the same, connecting lines between projection points of the two distance meters on the pipeline cylindrical surface and connecting lines between detection points of the two fixed probes are pipeline axis parallel lines.
The invention also provides a pipeline section positioning method, which comprises the following steps:
s2.1, vertically connecting fixed probes below two ends of a positioning rod, and vertically installing a range finder in the middle of the positioning rod to ensure that the lowest points of the two fixed probes are at the same height and lower than the lowest point of the range finder; assembling two measuring assemblies according to the steps;
s2.2, connecting two ends of the positioning rods of the two measuring assemblies by using a connecting rod respectively, wherein the end parts of the connecting rods are perpendicular to the corresponding positioning rods, and the positioning devices for the sections of the pipelines are assembled;
s2.3, arranging a pipeline section positioning device on the outer side of a pipeline, wherein four fixed probes of two measuring assemblies are contacted with a pipeline cylindrical surface, then measuring the distance between the fixed probes and the pipeline cylindrical surface by using a distance meter, when the distances measured by the two distance meters are the same, the connecting line between projection points of the two distance meters on the pipeline cylindrical surface is a pipeline axis parallel line, and the plane of an arc-shaped surface formed by three points of the lowest point of the two fixed probes of the same measuring assembly and the lowest point of the distance meter is a pipeline section perpendicular to the pipeline axis parallel line;
s2.4, in the step S2.3, the planes of four probe points of the four fixed probes of the two measuring assemblies, which are in contact with the cylindrical surface of the pipeline, are the sections of the pipeline column perpendicular to the parallel line of the pipeline axis.
The technical scheme of the invention has the following beneficial effects:
1. the invention has simple principle, adopts two points and one line, three points to determine the surface, one surface and one line to determine the three-dimensional principle to position the parallel line of the axis of the pipeline and the cylinder with the section.
2. The positioning device provided by the invention has few moving parts, only two distance meters are moving parts, so that gap errors caused by frequent use are avoided, and the measurement is accurate; the positioning device has low requirements on the production process, low cost and few vulnerable parts.
3. The invention has the advantages that the measuring condition is not limited by the environment, the on-site passive measurement can be realized, and even if the pipeline is buried underground, the pipeline can be simply processed, and only a section of pipeline is exposed.
4. The pipeline to be tested can be operated at any section of the pipeline without searching the end part of the pipeline.
Drawings
FIG. 1 is a schematic view of a device for positioning parallel lines of a pipeline axis in the background art of the invention;
FIG. 2 is a schematic diagram of a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;
fig. 4 is a usage state diagram of the second embodiment.
Reference numerals illustrate:
1. a positioning rod; 2. fixing the probe; 3. a displacement measuring meter; 31. a dial; 32. a pointer; 33. and a slide bar.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 2, this embodiment provides a pipeline axis parallel line positioning device, including two measurement components, measurement components includes locating lever 1, fixed probe 2 and distancer, fixed probe 2 sets up in the one end below of locating lever 1 perpendicularly, the distancer sets up in the below of locating lever 1 perpendicularly, the minimum of fixed probe 2 is less than the minimum of distancer, the vertical axis of fixed probe 2 and the vertical axis coplane a of distancer, two measurement components's locating lever 1 parallel interval sets up and is connected with it vertically connecting rod between the two, and the connecting rod is perpendicular with face a.
The distance meter can select a distance sensor.
In this embodiment, the range finder selects displacement meter 3, be equipped with the range finder mounting hole on the locating lever 1, displacement meter 3 includes dial plate 31, pointer 32 and slide bar 33, the lower extreme of dial plate 31 is the sleeve, the sleeve is pegged graft in the range finder mounting hole, be equipped with displacement scale on the dial plate 31, the pointer 32 passes through the center pin joint of minor axis and dial plate 31, the rear end of minor axis is equipped with the gear, the lower extreme of slide bar 33 is displacement probe, and the upper end upwards stretches out to the side of gear from the sleeve, the upper portion side of slide bar 33 is equipped with the rack, rack and gear engagement, and when reciprocating motion was from top to bottom, the gear was driven to rotate through the rack, and the gear passes through the minor axis and drives coaxial pointer rotation, directional different displacement. The outer sides of the sliding rod and the sleeve are provided with limiting steps, a reset spring is arranged between the two limiting steps, when the sliding rod works, the sliding rod moves upwards, the rack drives the gear to drive the pointer to rotate, the displacement of the sliding rod is measured, and the reset spring is compressed at the moment; when the sliding rod is not in operation, the reset spring is reset under the action of spring force, and downward thrust is provided for the sliding rod, so that the sliding rod is reset.
The fixed probe comprises a fixed probe rod and a probe arranged at the lower end of the fixed probe rod, and the upper end of the fixed probe rod is fixedly connected with the lower part of the end part of the positioning rod.
In this embodiment, both the displacement probe and the probe are small bulbs. The fixed probe rod and the positioning rod can be telescopic rods or series rods with different lengths, and the fixed probe rods with different lengths can be replaced according to the outer diameter of the pipeline.
The embodiment also provides a method for positioning parallel lines of the pipeline axis, which comprises the following steps:
s1.1, vertically fixing a fixed probe below one end of a positioning rod, and vertically installing a range finder on the positioning rod to ensure that the lowest point of the fixed probe is lower than the lowest point of the range finder; assembling two measuring assemblies according to the steps;
s1.2, connecting positioning rods of the two measuring assemblies by using connecting rods, wherein the end parts of the connecting rods are vertical to the corresponding positioning rods, and the pipeline axis parallel line positioning device is assembled;
s1.3, arranging a pipeline axis parallel line positioning device on the outer side of a pipeline, contacting fixed probes of two measuring assemblies with a pipeline cylindrical surface, measuring the distance between the fixed probes and the pipeline cylindrical surface by using distance meters, and when the distances measured by the two distance meters are the same, connecting lines between projection points of the two distance meters on the pipeline cylindrical surface and connecting lines between detection points of the two fixed probes are pipeline axis parallel lines.
Example 2
As shown in fig. 3 and 4, this embodiment provides a positioning device for a section of a pipe, which is an improvement on the structure of embodiment 1, and is different in that: fixed probes are vertically connected below two ends of a locating rod of a measuring assembly of the pipeline axis parallel line locating device, the range finder is arranged in the middle of the locating rod, and the two fixed probes are symmetrically arranged relative to the range finder. The two ends of the positioning rod are respectively connected through a connecting rod.
A pipeline section positioning method comprises the following steps:
s2.1, vertically connecting fixed probes below two ends of a positioning rod, and vertically installing a range finder in the middle of the positioning rod to ensure that the lowest points of the two fixed probes are at the same height and lower than the lowest point of the range finder; assembling two measuring assemblies according to the steps;
s2.2, connecting two ends of the positioning rods of the two measuring assemblies by using a connecting rod respectively, wherein the end parts of the connecting rods are perpendicular to the corresponding positioning rods, and the positioning devices for the sections of the pipelines are assembled;
s2.3, arranging a pipeline section positioning device on the outer side of a pipeline, wherein four fixed probes of two measuring assemblies are contacted with a pipeline cylindrical surface, then measuring the distance between the fixed probes and the pipeline cylindrical surface by using a distance meter, when the distances measured by the two distance meters are the same, the connecting line between projection points of the two distance meters on the pipeline cylindrical surface is a pipeline axis parallel line, and the plane of an arc-shaped surface formed by three points of the lowest point of the two fixed probes of the same measuring assembly and the lowest point of the distance meter is a pipeline section perpendicular to the pipeline axis parallel line;
s2.4, in the step S2.3, the planes of four probe points of the four fixed probes of the two measuring assemblies, which are in contact with the cylindrical surface of the pipeline, are the sections of the pipeline column perpendicular to the parallel line of the pipeline axis.
The basic application principle of the invention is that the central axis is searched and positioned according to the principle that the plane is determined by three points and the section is determined by parallel planes, the positioning device comprises two identical measuring components, and the two ends of the positioning rod of the measuring components are fixedly connected through a connecting rod respectively; the displacement measuring meters of the two measuring assemblies measure the displacement of the two measuring assemblies relative to the cylindrical surface of the pipeline at the same time, and if the two displacements are the same, the connecting line between the lower ends of the two sliding rods and the contact point of the cylindrical surface of the pipeline is a parallel line of the axis of the pipeline; simultaneously, the contacts of two fixed probes of the same measuring assembly and the pipeline cylindrical surface, and the contacts of the lower end of the sliding rod and the pipeline cylindrical surface are all points on an arc line perpendicular to the parallel line of the pipeline axis, the principle of determining the surface by 3 points is adopted, two cambered surfaces are found by the two measuring assemblies, the parallel line of the pipeline axis is added to the two cambered surfaces, and finally the section cylinder is found.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (8)
1. The utility model provides a pipeline axis parallel line positioner which characterized in that, includes two measurement components, measurement components includes locating lever, fixed probe and distancer, fixed probe sets up perpendicularly in the one end below of locating lever, the distancer sets up perpendicularly in the below of locating lever, fixed probe's the minimum is less than the minimum of distancer, fixed probe's vertical axis and distancer's vertical axis coplane A, two measurement components's locating lever parallel interval sets up and is connected through the connecting rod perpendicular with it between the two, and the connecting rod is perpendicular with face A;
when the fixed probes of the two measuring assemblies are in contact with the pipeline cylindrical surface and the distance between the fixed probes and the pipeline cylindrical surface is the same as the distance between the fixed probes and the pipeline cylindrical surface measured by the two distance measuring devices, the connection between projection points of the two distance measuring devices on the pipeline cylindrical surface is a pipeline axis parallel line;
a method for positioning parallel lines of pipeline axes comprises the following steps:
s1.1, vertically fixing a fixed probe below one end of a positioning rod, and vertically installing a range finder on the positioning rod to ensure that the lowest point of the fixed probe is lower than the lowest point of the range finder; assembling two measuring assemblies according to the steps;
s1.2, connecting positioning rods of the two measuring assemblies by using connecting rods, wherein the end parts of the connecting rods are vertical to the corresponding positioning rods, and the pipeline axis parallel line positioning device is assembled;
s1.3, arranging a pipeline axis parallel line positioning device on the outer side of a pipeline, contacting fixed probes of two measuring assemblies with a pipeline cylindrical surface, measuring the distance between the fixed probes and the pipeline cylindrical surface by using distance meters, and when the distances measured by the two distance meters are the same, connecting lines between projection points of the two distance meters on the pipeline cylindrical surface and connecting lines between detection points of the two fixed probes are pipeline axis parallel lines.
2. The device for positioning parallel lines of a pipeline axis according to claim 1, wherein the distance measuring instrument is a distance sensor.
3. The positioning device for parallel lines of pipeline axes according to claim 1, wherein the distance meter is a displacement meter, the positioning rod is provided with a distance meter mounting hole, the displacement meter comprises a dial plate, a pointer and a slide rod, the lower end of the dial plate is a sleeve, the sleeve is inserted into the distance meter mounting hole, the dial plate is provided with a displacement scale, the pointer is connected with the central shaft of the dial plate through a short shaft, the rear end of the short shaft is provided with a gear, the lower end of the slide rod is a displacement probe, the upper end of the slide rod extends upwards to the side of the gear from the sleeve, the side of the upper part of the slide rod is provided with a rack, and the rack is meshed with the gear.
4. A device for positioning parallel lines of pipe axes according to claim 3, wherein the displacement probe is a ball head.
5. The device for positioning parallel lines of a pipeline axis according to claim 1, wherein the fixed probe comprises a fixed probe rod and a probe arranged at the lower end of the fixed probe rod, and the upper end of the fixed probe rod is fixedly connected with the lower part of the end part of the positioning rod.
6. The device for positioning parallel lines of a pipeline axis according to claim 5, wherein the fixed probe rod is a telescopic rod.
7. A pipeline section positioning device is characterized by comprising the pipeline axis parallel line positioning device according to any one of claims 1-6, wherein fixed probes are vertically connected below two ends of a positioning rod of a measuring assembly of the pipeline axis parallel line positioning device, the range finder is arranged in the middle of the positioning rod, and two fixed probes are symmetrically arranged relative to the range finder;
the method for positioning the section of the pipeline comprises the following steps:
s2.1, vertically connecting fixed probes below two ends of a positioning rod, and vertically installing a range finder in the middle of the positioning rod to ensure that the lowest points of the two fixed probes are at the same height and lower than the lowest point of the range finder; assembling two measuring assemblies according to the steps;
s2.2, connecting two ends of the positioning rods of the two measuring assemblies by using a connecting rod respectively, wherein the end parts of the connecting rods are perpendicular to the corresponding positioning rods, and the positioning devices for the sections of the pipelines are assembled;
s2.3, arranging a pipeline section positioning device on the outer side of a pipeline, wherein four fixed probes of two measuring assemblies are contacted with a pipeline cylindrical surface, then measuring the distance between the fixed probes and the pipeline cylindrical surface by using a distance meter, when the distances measured by the two distance meters are the same, the connecting line between projection points of the two distance meters on the pipeline cylindrical surface is a pipeline axis parallel line, and the plane of an arc-shaped surface formed by three points of the lowest point of the two fixed probes of the same measuring assembly and the lowest point of the distance meter is a pipeline section perpendicular to the pipeline axis parallel line;
s2.4, in the step S2.3, the planes of four probe points of the four fixed probes of the two measuring assemblies, which are in contact with the cylindrical surface of the pipeline, are pipeline column sections parallel to the parallel line of the pipeline axis.
8. The pipe section positioning device according to claim 7, wherein the distance meter is a displacement meter, the positioning rod is provided with a distance meter mounting hole, the displacement meter comprises a dial plate, a pointer and a slide rod, the lower end of the dial plate is a sleeve, the sleeve is inserted into the distance meter mounting hole, the dial plate is provided with a displacement scale, the pointer is connected with the central shaft of the dial plate through a short shaft, the rear end of the short shaft is provided with a gear, the lower end of the slide rod is a displacement probe, the upper end of the slide rod extends upwards to the side of the gear from the sleeve, the side of the upper part of the slide rod is provided with a rack, and the rack is meshed with the gear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210545076.7A CN114909972B (en) | 2022-05-19 | 2022-05-19 | Pipeline axis parallel line positioning device, section positioning device and positioning method |
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| CN202210545076.7A CN114909972B (en) | 2022-05-19 | 2022-05-19 | Pipeline axis parallel line positioning device, section positioning device and positioning method |
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| CN114909972B true CN114909972B (en) | 2024-01-30 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA745758A (en) * | 1966-11-08 | D. Glidden Roger | Range rod assembly | |
| CN2288415Y (en) * | 1996-04-22 | 1998-08-19 | 宝山钢铁(集团)公司 | Measurer for roller diameter |
| WO2003076869A1 (en) * | 2002-03-13 | 2003-09-18 | Borealis Technology Oy | Apparatus for inspecting deformation of pipes |
| WO2008068972A1 (en) * | 2006-12-04 | 2008-06-12 | Sumitomo Metal Industries, Ltd. | Follow-up device for detecting flaw of pipe and automatic flaw detection apparatus of pipe employing it |
| CN105806197A (en) * | 2016-05-13 | 2016-07-27 | 西安理工大学 | Wall plate part bending and warping deformation measurement device and method |
| CN209027430U (en) * | 2018-10-30 | 2019-06-25 | 中国一冶集团有限公司 | Ovality detection device |
| CN213543402U (en) * | 2020-09-16 | 2021-06-25 | 上海绿孚科技有限公司 | Blade surface cambered surface distance positioning mechanism |
| CN113587769A (en) * | 2021-08-27 | 2021-11-02 | 安徽合力股份有限公司 | Multifunctional measuring device for forklift |
| CN215984321U (en) * | 2021-09-15 | 2022-03-08 | 南通市计量检定测试所 | Device for online digital measurement of large-diameter pipeline outer diameter |
| CN217358530U (en) * | 2022-05-19 | 2022-09-02 | 南通市计量检定测试所 | Pipeline axis parallel line positioning device and section positioning device |
-
2022
- 2022-05-19 CN CN202210545076.7A patent/CN114909972B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA745758A (en) * | 1966-11-08 | D. Glidden Roger | Range rod assembly | |
| CN2288415Y (en) * | 1996-04-22 | 1998-08-19 | 宝山钢铁(集团)公司 | Measurer for roller diameter |
| WO2003076869A1 (en) * | 2002-03-13 | 2003-09-18 | Borealis Technology Oy | Apparatus for inspecting deformation of pipes |
| WO2008068972A1 (en) * | 2006-12-04 | 2008-06-12 | Sumitomo Metal Industries, Ltd. | Follow-up device for detecting flaw of pipe and automatic flaw detection apparatus of pipe employing it |
| CN105806197A (en) * | 2016-05-13 | 2016-07-27 | 西安理工大学 | Wall plate part bending and warping deformation measurement device and method |
| CN209027430U (en) * | 2018-10-30 | 2019-06-25 | 中国一冶集团有限公司 | Ovality detection device |
| CN213543402U (en) * | 2020-09-16 | 2021-06-25 | 上海绿孚科技有限公司 | Blade surface cambered surface distance positioning mechanism |
| CN113587769A (en) * | 2021-08-27 | 2021-11-02 | 安徽合力股份有限公司 | Multifunctional measuring device for forklift |
| CN215984321U (en) * | 2021-09-15 | 2022-03-08 | 南通市计量检定测试所 | Device for online digital measurement of large-diameter pipeline outer diameter |
| CN217358530U (en) * | 2022-05-19 | 2022-09-02 | 南通市计量检定测试所 | Pipeline axis parallel line positioning device and section positioning device |
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| CN114909972A (en) | 2022-08-16 |
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