CN213396951U - Overhead line length measuring device - Google Patents
Overhead line length measuring device Download PDFInfo
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- CN213396951U CN213396951U CN202022877923.9U CN202022877923U CN213396951U CN 213396951 U CN213396951 U CN 213396951U CN 202022877923 U CN202022877923 U CN 202022877923U CN 213396951 U CN213396951 U CN 213396951U
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- overhead line
- measuring device
- carousel
- line length
- microcomputer
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Abstract
The utility model relates to a device for electric power construction, in particular to an overhead line length measuring device, which comprises a base for supporting, a vertically arranged support leg, a turntable, a microcomputer and an infrared measuring instrument; the landing leg is insulating flexible member, the base is established in the below of landing leg, the carousel rotates and installs the top at the landing leg, microcomputer and infrared ray measuring apparatu are all installed on the carousel and can rotate along with the carousel, the little letter computer is used for receiving infrared ray measuring apparatu's measured data. The overhead line length measuring device is used for carrying out multi-point positioning of space coordinates on the installed overhead line, so that the length, the sag and the radian of the subsequently installed overhead line and the length, the sag and the radian of the adjacent overhead line can be effectively ensured to be consistent, and the external aesthetic degree is ensured.
Description
Technical Field
The utility model relates to a device is used in electric power construction, specifically is an overhead line length measuring device.
Background
When a power plant newly adds overhead lines with the same span or installs overhead lines with the same span in different construction units, the situation that the length, the sag and the radian of the suspended overhead line are inconsistent with those of the adjacent suspended overhead line can often occur due to errors (particularly different construction parties) in measurement and calculation of the length of the overhead line, so that the external appearance is influenced, and the great influence is further caused on the creation and optimization evaluation of the existing construction project.
At present, the length measurement of the overhead line mainly has the following defects:
1. the overhead line length measuring part is converted by a drawing linear distance sleeved overhead line formula (L = L0+2.7Kf2/L0-2R K is approximately equal to 1.2-2.0), wherein the sag f can change according to different temperatures during installation, and the K value can take different values within 1.2-2.0 according to field conditions and construction personnel consideration, so that the sag and the radian of the overhead line in the same region installed by different personnel or installed at different periods are different.
2. The overhead line length measuring part is pre-installed at the installation position of the overhead line by using a soft rope, so that the overhead line length measuring part has safety risk and is greatly influenced by weather, and the overhead line length measuring part cannot be applied to measurement for keeping the verticality and the radian consistent with those of nearby electrified overhead lines.
Disclosure of Invention
In order to solve the problem, the utility model provides an overhead line length measuring device will hang overhead line length and carry out the precision measurement, guarantees the uniformity of adjacent overhead line length, sag and radian.
An overhead line length measuring device comprises a base for supporting, a vertically arranged support leg, a turntable, a microcomputer and an infrared measuring instrument;
the landing leg is insulating flexible member, the base is established in the below of landing leg, the carousel rotates and installs the top at the landing leg, microcomputer and infrared ray measuring apparatu are all installed on the carousel and can rotate along with the carousel, the little letter computer is used for receiving infrared ray measuring apparatu's measured data.
Above-mentioned overhead line length measuring device, the eccentric rotation of carousel is installed the top at the landing leg.
Above-mentioned overhead line length measuring device, the base is the telescopic tripod.
The utility model has the advantages that: the device has simple structure, and can be conveniently used and carried on various construction sites. The base and the supporting legs are all set to be telescopic and adjustable, the ground surface height of different coordinates can be adjusted, the infrared measuring instruments at different coordinates of the supporting legs are adjusted to be on the same horizontal line all the time, and the measuring accuracy is guaranteed. The turntable is eccentrically arranged, the position of the infrared measuring instrument can be finely adjusted, the turntable is very convenient, and the measuring efficiency can be improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1 is a base, 2 is a supporting leg, 3 is a turntable, 4 is a microcomputer, and 5 is an infrared measuring instrument.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Taking a newly-built 2 × 1000MW engineering project in Dongying of Datang as an example, two machine components belong to different construction units, the machine set No. 1 completes the erection work of a main transformer No. 1 and 6 double-loop overhead lines of a standby transformer, and the machine set No. 2 is carrying out the erection work of the overhead lines of the main transformer No. 2. When the No. 2 unit is erected, due to different environmental temperatures and different construction personnel, values of f and K in an overhead line length formula (L = L0+2.7Kf2/L0-2R K is approximately equal to 1.2-2.0) are different from those of the No. 1 unit, and the length, the verticality and the radian of the No. 2 main overhead line cannot be guaranteed to be the same as those of the No. 1 unit overhead line.
The measuring device of the embodiment can be used for conveniently erecting the No. 2 main overhead line, the infrared measuring instrument 1 can be used for positioning multiple points such as the starting point, the middle point, the tail end position and the like of the suspended overhead line, measuring the coordinate and the sag of the suspended overhead line, importing data into a computer, and calculating the actual length of the suspended overhead line.
The concrete structure is as follows: firstly, a telescopic insulating rod is used as a supporting leg 2, a common telescopic tripod is arranged below the supporting leg 2 and used as a base 1 for fixing on the ground, and a rotatable turntable 3 is eccentrically arranged at the top of the supporting leg 2; secondly, a microcomputer 4 and an infrared measuring instrument 5 are arranged on the turntable 3; the turntable 3 is eccentrically arranged, and the infrared measuring instrument 5 can be finely adjusted after rotation, so that overhead lines can be conveniently aligned, and the measuring efficiency is improved; and thirdly, the infrared measuring instrument 5 and the microcomputer 4 are connected for importing measured data, and the microcomputer 4 displays the actual length of the overhead line from the liquid crystal screen through conversion after the data is imported (or can manually calculate according to the measured data), so that the overhead line length measuring work is completed. The different coordinate data of a certain overhead line are measured, a laser level meter can be used for determining a horizontal measuring point, and the infrared measuring instrument 5 is always positioned on the same horizontal line when the device moves at different ground coordinates. It is also possible to adjust the legs 2 in correspondence, without laser levels, directly according to the ground altitude differences indicated in the mapped local terrain map.
The principle of the device is that the erected overhead line is subjected to multi-point positioning measurement according to space coordinates, then the layout of the overhead line is simulated in a microcomputer according to the coordinates and corresponding measured values so as to measure and calculate the actual length, and the obtained result is more accurate. The construction application ensures the uniform length, radian and sag of the same overhead line erected by different construction units at different time, and provides great guarantee for the creation of excellence of each project at the present stage. The equipment has simple and exquisite integral structure, and is convenient for construction teams to carry and use in various environments.
Claims (3)
1. The utility model provides an overhead line length measuring device which characterized in that: a base (1) for supporting, a supporting leg (2) vertically arranged, a turntable (3), a microcomputer (4) and an infrared measuring instrument (5);
landing leg (2) are insulating flexible member, establish the below at landing leg (2) in base (1), carousel (3) rotate and install the top in landing leg (2), microcomputer (4) and infrared ray measuring instrument (5) are all installed on carousel (3) and can be rotatory along with carousel (3), microcomputer (4) are used for receiving the measured data of infrared ray measuring instrument (5).
2. The overhead line length measuring device according to claim 1, wherein: the rotary disc (3) is eccentrically and rotatably arranged at the top end of the supporting leg (2).
3. The overhead line length measuring device according to claim 1, wherein: the base (1) is a telescopic tripod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022877923.9U CN213396951U (en) | 2020-12-04 | 2020-12-04 | Overhead line length measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022877923.9U CN213396951U (en) | 2020-12-04 | 2020-12-04 | Overhead line length measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213396951U true CN213396951U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022877923.9U Active CN213396951U (en) | 2020-12-04 | 2020-12-04 | Overhead line length measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213396951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001699A (en) * | 2021-12-31 | 2022-02-01 | 中国化学工程第十三建设有限公司 | Real estate building area measuring device |
-
2020
- 2020-12-04 CN CN202022877923.9U patent/CN213396951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001699A (en) * | 2021-12-31 | 2022-02-01 | 中国化学工程第十三建设有限公司 | Real estate building area measuring device |
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