CN211783341U - Measuring system for automatically detecting geometric quantity of formed pipe ring - Google Patents
Measuring system for automatically detecting geometric quantity of formed pipe ring Download PDFInfo
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- CN211783341U CN211783341U CN202020362476.0U CN202020362476U CN211783341U CN 211783341 U CN211783341 U CN 211783341U CN 202020362476 U CN202020362476 U CN 202020362476U CN 211783341 U CN211783341 U CN 211783341U
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Abstract
The utility model relates to an automatic detect measurement system of shaping collar geometry, including computer and shield structure machine, be provided with a plurality of section distancer group on the supporting frame behind the shield structure machine, section distancer group with the computer links to each other for detect section distancer group to the distance at section center, the computer basis the distance that section distancer group recorded is fitted out sectional space circle, and calculates collar geometry according to space circle. The utility model discloses can accurate automatic measure assemble data such as circularity, roughness and convergence of pipe ring.
Description
Technical Field
The utility model relates to a pipe ring among the engineering construction technical field detects, especially relates to an automatic measurement system who detects shaping pipe ring geometry.
Background
The shield construction method is the most advanced subway excavation construction method in the world at present and is widely applied to subway projects in various places in China. The pipe ring formed by splicing the pipe pieces is used as the protection of the outmost layer of the subway tunnel as the construction result of the shield construction method, and the importance of the protection on the service life and the safety of the subway tunnel in the future is self-evident. The splicing quality of the duct piece is one of the most important factors of the quality of the pipe ring, so the detection of the splicing quality of the duct piece for forming the pipe ring becomes very important, wherein the detection of the roundness, the flatness and the convergence of the splicing quality of the duct piece is most intuitive and becomes an indispensable part of the quality detection of the pipe ring.
The method for detecting the geometric quantity of the pipe ring is a manual measurement method at present, and as the shield mechanism is complex in structure, large-sized machines are numerous, and manual channels are narrow, the defects of difficulty in manual measurement, low speed, low precision, personnel risk, incapability of measuring for a long time and the like are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a measurement system of automated inspection shaping collar geometry is provided, data such as circularity, roughness and the convergence of collar can be assembled to accurate automatic measure.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an automatic detect measurement system of shaping pipe ring geometry, includes computer and shield structure machine, be provided with a plurality of section distancer group on the supporting frame behind the shield structure machine, section distancer group with the computer links to each other for detect section distancer group to the distance at section center, the computer basis the distance that section distancer group measured is fitted out sectional space circle, and calculates pipe ring geometry according to space circle.
The section distance measuring instrument set comprises at least three distance measuring instruments and a controller connected with each distance measuring instrument, the distance measuring instruments take the center of a section as the center of a circle, the equal angular intervals are uniformly distributed in the section, and the distance measuring direction of each distance measuring instrument points to the center of the section; the controller is connected with the computer.
And the controller controls the distance measuring instruments in the section distance measuring instrument group to sequentially measure the distance.
The distance measuring instrument is a laser distance measuring instrument.
The computer stores the position information of each distance meter in the section distance meter group.
Advantageous effects
Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect: the utility model discloses a set up a plurality of section distancer group on supporting frame behind the shield constructs the machine, utilize section distancer group to record a plurality of corresponding points on the pipe ring to the distance in the section centre of a circle, this sectional space circle of refitting out can obtain geometric sense information such as circularity, roughness and the convergence of pipe ring through this space circle, and whole measuring process is whole can realize automatically.
Drawings
FIG. 1 is a cross-sectional view of the structure of the measuring system for automatically detecting the geometric quantity of the formed pipe ring of the present invention;
fig. 2 is another angle structure section view of the measuring system for automatically detecting the geometric quantity of the formed pipe ring of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The embodiment of the utility model provides a measurement system for automated inspection shaping collar geometry, as shown in fig. 1 and fig. 2, including computer and shield structure machine, be provided with a plurality of section distancer group on the supporting frame behind the shield structure machine, section distancer group with the computer links to each other for detect section distancer group to the distance at section center, the computer basis the section distancer is organized the distance that records and is fitted out sectional space circle, and calculates collar geometry according to the space circle.
This embodiment is including one of two distancer group being located near the connecting bridge, another is located the supporting frame afterbody behind the shield constructs the machine, section distancer group is including at least three distancer and a controller that links to each other with each distancer, the controller links to each other with the computer, when receiving the detection command that the computer sent, the distancer of controller meeting control distancer in organizing carries out the range finding in proper order, then give the computer with the result passback, so every section that distancer is located records to notched mileage distance to the computer in.
In fig. 1, a set of three distance meters 3 is mounted on the section near the bridge, all the distance meters in the set being linked to a controller 2, the controller 2 being linked to a computer 1. Fig. 2 shows another set of 5 rangefinders, wherein the 5 rangefinders are mounted in the same section, all linked to one controller.
In order to ensure that the calculated result is more accurate, the distance measuring instruments in the embodiment adopt laser distance measuring instruments, each laser distance measuring instrument takes the center of a section as the center of a circle, the equal angular intervals are uniformly distributed in the section, the distance measuring direction of each laser distance measuring instrument points to the center of the section, namely the distance measuring direction is the same as the radius direction of the mounting point of the over-laser distance measuring instrument, and the relative coordinate of the mounting position of each distance measuring instrument relative to the section needs to be accurately measured and then recorded into a computer.
The computer combines the distance measurement result of each distance meter with the position information of the distance meter to calculate the distance from the corresponding point on the pipe ring to the center of the section, then a space circle of the section can be fitted by a least square method according to the distance between the centers of all the pipe rings in the section, the information of the fitting center, the radius of the fitting circle, the roundness, the flatness, the actual measurement point dispersion degree and the like of the space circle is calculated, and the data information of the assembly error, the convergence and the like of the measurement section is calculated compared with the design information.
Specifically, during measurement, the computer controls the laser range finders in each range finder group to measure the distance between the laser range finders and a formed pipe piece, then calculates the distance between the pipe piece and the center of a section according to the relative position of each laser range finder in the section stored before, calculates the data such as roundness, flatness and convergence of a pipe ring of the section by a least square method fitting space circle according to the distance, then records and stores the mileage position corresponding to each section according to the saved mileage distance from a notch, compares the mileage position with design data after calculation is completed, and marks the position exceeding a threshold value to remind construction technical managers.
It is difficult to discover, the utility model discloses a set up a plurality of section distancer group on the supporting frame behind the shield constructs the machine, utilize section distancer group to record a plurality of corresponding points on the pipe ring to the distance in the section centre of a circle, this sectional space circle of refitting out can obtain geometric sense information such as circularity, roughness and the convergence of pipe ring through this space circle, and whole measuring process is whole can realize automatically.
Claims (5)
1. The utility model provides an automatic detect measurement system of shaping pipe ring geometric sense, includes computer and shield structure machine, its characterized in that, be provided with a plurality of section distancer group on the supporting frame behind the shield structure machine, section distancer group with the computer links to each other for detect section distancer group to the distance at section center, the computer basis the distance that section distancer group measured is fitted out the sectional space circle, and calculates pipe ring geometric sense according to the space circle.
2. The system for automatically measuring the geometric quantity of the formed pipe ring according to claim 1, wherein the section distance measuring instrument set comprises at least three distance measuring instruments and a controller connected with each distance measuring instrument, the distance measuring instruments are uniformly distributed in the section by taking the center of the section as a center and equal angular intervals, and the distance measuring direction of each distance measuring instrument points to the center of the section; the controller is connected with the computer.
3. The system of claim 2, wherein the controller controls the range finders of the set of profile finders to sequentially range.
4. The measuring system for automatically detecting the geometric quantity of a formed pipe ring according to claim 1, wherein the distance measuring instrument is a laser distance measuring instrument.
5. The system of claim 1, wherein the computer stores position information for each rangefinder in the set of rangefinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020362476.0U CN211783341U (en) | 2020-03-20 | 2020-03-20 | Measuring system for automatically detecting geometric quantity of formed pipe ring |
Applications Claiming Priority (1)
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| CN202020362476.0U CN211783341U (en) | 2020-03-20 | 2020-03-20 | Measuring system for automatically detecting geometric quantity of formed pipe ring |
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| CN211783341U true CN211783341U (en) | 2020-10-27 |
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| CN202020362476.0U Active CN211783341U (en) | 2020-03-20 | 2020-03-20 | Measuring system for automatically detecting geometric quantity of formed pipe ring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022262809A1 (en) * | 2021-06-17 | 2022-12-22 | 中交疏浚技术装备国家工程研究中心有限公司 | Calculation method for measuring flatness of cross-section of tunnel segment based on spatial point-to-plane relation |
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2020
- 2020-03-20 CN CN202020362476.0U patent/CN211783341U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022262809A1 (en) * | 2021-06-17 | 2022-12-22 | 中交疏浚技术装备国家工程研究中心有限公司 | Calculation method for measuring flatness of cross-section of tunnel segment based on spatial point-to-plane relation |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210209 Address after: 201702 room 216, area m, 2nd floor, 158 Shuanglian Road, Qingpu District, Shanghai Patentee after: SHANGHAI M&D TECHNICAL MEASUREMENT Co.,Ltd. Patentee after: Shanghai rail transit line 18 Development Co.,Ltd. Patentee after: CHINA RAILWAY FIRST GROUP Co.,Ltd. Address before: 201702 room 216, area m, 2nd floor, 158 Shuanglian Road, Qingpu District, Shanghai Patentee before: SHANGHAI M&D TECHNICAL MEASUREMENT Co.,Ltd. |
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| TR01 | Transfer of patent right |