CN113124768B - Embrace pole structure and warp detection device and embrace pole - Google Patents
Embrace pole structure and warp detection device and embrace pole Download PDFInfo
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- CN113124768B CN113124768B CN202110314568.0A CN202110314568A CN113124768B CN 113124768 B CN113124768 B CN 113124768B CN 202110314568 A CN202110314568 A CN 202110314568A CN 113124768 B CN113124768 B CN 113124768B
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/161—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by interferometric means
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Abstract
The embodiment of the invention discloses a holding pole structure deformation detection device and a holding pole. The device comprises a first support, a second support, a third support, a fourth support and a semi-transparent and semi-reflective mirror, wherein the first support comprises a first total reflector, the second support comprises a light source, the third support comprises a second total reflector, the fourth support comprises a light source detection module, the semi-transparent and semi-reflective mirror is used for reflecting incident light emitted by the light source into first reflected light and transmitting into first transmitted light, the first total reflector is used for reflecting the first reflected light into second reflected light, the second total reflector is used for reflecting the first transmitted light into third reflected light, the semi-transparent and semi-reflective mirror is used for transmitting the second reflected light into second transmitted light and reflecting the third reflected light into fourth reflected light, when the holding pole deforms, the second transmitted light and the fourth reflected light generate a stroke difference, and the light source detection module is used for determining the structural deformation degree of the holding pole according to the stroke difference. The embodiment of the invention improves the reliability of the holding pole.
Description
Technical Field
The invention relates to the technical field of electric power systems, in particular to a pole structure deformation detection device and a pole.
Background
In the construction of electric power engineering, the holding pole is a machine tool which is necessary to be used for assembling the iron tower of the power transmission line, and the labor intensity of constructors can be greatly reduced by reducing the weight of the holding pole.
The common holding pole is a structural type square holding pole, and the safety coefficient n of the structural type square holding pole is more than or equal to 2.5 according to the basic technical requirements of overhead transmission line construction machines and tools. The large safety margin is helpful for avoiding safety accidents caused by structural deformation of the holding pole, but the blind excessive safety margin does not need to worry about structural deformation of the holding pole, such as bending of the holding pole, but undoubtedly increases the weight of the holding pole and increases the consumption of precious materials required for manufacturing the holding pole, and the holding pole is manufactured by titanium alloy precious materials.
Because the titanium alloy holding pole is restricted by the characteristics of the titanium alloy material, the titanium alloy holding pole has smaller elastic modulus and is easy to bend. From the safety perspective, increase the structural deformation monitoring measure of a pole to the safety margin of pole is reduced as far as possible under the prerequisite of guaranteeing the safety margin threshold value, reduces the quantity of the required valuable material of making the pole, has improved construction safety nature and efficiency of construction when reducing constructor's intensity of labour, has become the current problem that awaits the solution urgently.
Disclosure of Invention
In view of the above, it is necessary to provide a pole structure deformation detection device and a pole.
In a first aspect, an embodiment of the present invention provides a pole structure deformation detection device, which is disposed inside a pole, and the device includes a first pillar, a second pillar, a third pillar, a fourth pillar, and a half-mirror.
Specifically, the first support, the second support, the third support and the fourth support are integrally formed to form a cross structure, the semi-transparent and semi-reflective mirror is arranged at the center of the cross structure, the first support comprises a first total reflector, the second support comprises a light source, the third support comprises a second total reflector, the fourth support comprises a light source detection module, the light source and the second total reflector are oppositely arranged, the first total reflector and the light source detection module are oppositely arranged, the semi-transparent and semi-reflective mirror is used for reflecting incident light emitted by the light source into first reflected light and transmitting the first reflected light, the first total reflector is used for reflecting the first reflected light into second reflected light, the second total reflector is used for reflecting the first transmitted light into third reflected light, the semi-transparent and semi-reflective mirror is also used for transmitting the second reflected light into second transmitted light and reflecting the third reflected light into fourth reflected light, the first support comprises a first telescopic mechanism, the third support comprises a second telescopic rod, and the second telescopic rod and the telescopic rod are deformed according to the degree of total reflection of the light, and the degree of the total reflection of the second reflected light is determined by the telescopic mechanism, and the deformation degree of the second telescopic rod.
Preferably, the light source detection module includes an optical fringe detection device and a single chip microcomputer, the optical fringe detection device is configured to acquire an interference light intensity change of the second transmission light and the fourth reflection light due to a stroke difference, and the single chip microcomputer is configured to determine a structural deformation degree of the holding pole according to the interference light intensity change.
Preferably, the optical fringe detection device is an optical camera.
Preferably, the light source detection module further includes a lens, the lens is disposed between the optical fringe detection device and the half-mirror, and the lens is configured to converge the second transmitted light and the fourth reflected light.
Preferably, the single chip microcomputer is further used for sending a pole-holding deformation alarm according to the structural deformation degree of the pole-holding.
Preferably, the device further comprises a wireless communication module, and the wireless communication module is used for sending the structural deformation degree of the holding pole to an upper computer.
Preferably, the first and second telescoping mechanisms are metal bellows.
Preferably, the first total reflector is hermetically arranged in the first support, the light source is hermetically arranged in the second support, the second total reflector is hermetically arranged in the third support, and the light source detection module is hermetically arranged in the fourth support.
In a second aspect, an embodiment of the present invention provides a pole, where the pole includes the pole structure deformation detection apparatus provided in any one of the embodiments of the present invention.
Preferably, the pole structure deformation detection device is arranged at the center of the pole.
According to the embodiment of the invention, when the holding pole deforms, the first telescopic mechanism and the second telescopic mechanism change the positions of the first total reflector and the second total reflector through telescopic movement, so that the second transmission light and the fourth reflection light generate stroke difference, the light source detection module is used for determining the structural deformation degree of the holding pole according to the stroke difference, the problem of how to monitor the deformation of the holding pole in real time to give an alarm is solved, the safety margin requirement of the holding pole and the use amount of precious materials are reduced, and the beneficial effect of improving the reliability of the safe use of the holding pole is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a schematic structural diagram of a pole structure deformation detection device in one embodiment;
FIG. 2 is a schematic diagram of an embodiment of a light source detection module;
fig. 3 is a schematic structural view of a pole in one embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment, as shown in fig. 1, a pole structure deformation detection device is provided. The pole body structure deformation detection device is arranged inside a pole 90 and specifically comprises a first pole body 10, a second pole body 20, a third pole body 30, a fourth pole body 40 and a half-mirror 50.
Specifically, the first support 10, the second support 20, the third support 30 and the fourth support 40 are integrally formed to form a cross structure, the half mirror 50 is disposed at the center of the cross structure, the first support 10 includes a first total reflector 11, the second support 20 includes a light source 21, the third support 30 includes a second total reflector 31, the fourth support 40 includes a light source detection module 41, the light source 21 and the second total reflector 31 are disposed opposite to each other, the first total reflector 11 and the light source detection module 41 are disposed opposite to each other, the half mirror 50 is configured to reflect an incident light 60 emitted by the light source 21 as a first reflected light 71 and transmit as a first transmitted light 81, the first total reflector 11 is configured to reflect the first reflected light 71 as a second reflected light 72, the second total reflector 31 is configured to reflect the first transmitted light 81 as a third reflected light 73, the half mirror 50 is further configured to transmit the second reflected light 72 as a second transmitted light 82 and reflect the third reflected light 73 as a fourth reflected light 74, the first support 10 includes a third telescopic rod 30, and a telescopic rod mechanism 90 configured to change a degree of a difference between the reflected light 32 and a total reflector 32, and a telescopic rod mechanism 11 is configured to change a degree of a total reflector 12 and a telescopic rod mechanism 32.
In this embodiment, the holding pole 90 is square, and four ends of the cross structure are respectively fixed on the columns 91 at four corners of the square holding pole 90. Preferably, the incident angle of the incident light 60 is 45 degrees with respect to the half mirror 50, and may also be within a predetermined range of 45 degrees, so as to ensure that the second transmitted light 82 and the fourth reflected light 74 irradiate on the light source detecting module 41. When using the holding pole 90 including the holding pole structure deformation detection device, a worker first needs to turn on the light source 21, the light source 21 emits an incident light 60 to the half mirror 50, the half mirror 50 can divide the incident light 60 into two light beams with substantially equal intensity, that is, a half of the incident light 60 is reflected as a first reflected light beam 71, and another half of the incident light 60 is transmitted as a first transmitted light beam 81, the first reflected light beam 71 is reflected to the first total reflector 11, the first total reflector 11 reflects the first reflected light beam 71 as a second reflected light beam 72, the first transmitted light beam 81 is transmitted to the second total reflector 31, the second total reflector 31 reflects the first transmitted light beam 81 as a third reflected light beam 73, at the time, the second reflected light beam 72 and the third reflected light beam 73 are both reflected to the half mirror 50, at the time, the half mirror 50 reflects and transmits the second reflected light beam 72, wherein a half of the second reflected light beam 72 is transmitted to obtain a second transmitted light beam 82, the half mirror 50 reflects the third reflected light beam 74 and the fourth reflected light beam 74, and the fourth reflected is transmitted from the second reflected light beam 82, and the reflected by the second reflected by the half mirror 82, and the third reflected light beam 73, and the second reflected by the second reflected light beam detection module 41, and the third reflected by the third reflected light beam detection module 41, wherein the third reflected by the third reflected light beam detection module 82, and the third reflected light beam detection module 41, and the third reflected.
Further, the first support column 10 includes a first telescopic mechanism 12, the third support column 30 includes a second telescopic mechanism 32, when the holding rod 90 deforms, the first telescopic mechanism 12 and the second telescopic mechanism 32 can correspondingly expand and contract, and positions of the first total reflector 11 and the second total reflector 31 can relatively change, so that directions of the second reflected light 72 and the third reflected light 73 change, a stroke difference is generated, and when the stroke difference between the second reflected light 72 and the third reflected light 73 changes by half a wavelength, a light intensity period change of destructive and rising of the interference superposition of the two beams of light can occur, wherein an interval between the generated light and dark fringes reaches a millimeter size, the light source detection module 41 is a millimeter-sized light intensity sensor, such as a point-shaped photoreceptor, that a light intensity change of the fringes can be detected according to the stroke difference, and a structural deformation degree of the holding rod 90 can be determined according to the light intensity change.
In an embodiment, the first reflective mirror further includes a first adjusting mechanism 13, the second reflective mirror further includes a second adjusting mechanism 33, the first adjusting mechanism 13 is used for adjusting the first reflective mirror, the second adjusting mechanism 33 is used for adjusting the second reflective mirror, and before the holding pole 90 is used, the worker needs to adjust the first adjusting mechanism 13 and the second adjusting mechanism 33 in advance, so that the second transmitted light 82 and the fourth reflected light 74 irradiate on the light source detection module 41.
According to the embodiment of the invention, when the holding pole 90 deforms, the first telescopic mechanism 12 and the second telescopic mechanism 32 change the positions of the first total reflector 11 and the second total reflector 31 through telescopic movement, so that the second transmission light 82 and the fourth reflection light 74 generate the stroke difference, and the light source detection module 41 is used for determining the structural deformation degree of the holding pole 90 according to the stroke difference, so that the problem of how to monitor the deformation of the holding pole 90 in real time to give an alarm is solved, the safety margin requirement and the consumption of precious materials of the holding pole 90 are reduced, and the beneficial effect of improving the reliability of the safe use of the holding pole 90 is achieved.
In one embodiment, as shown in fig. 2, the light source detecting module 41 includes an optical fringe detecting device 42, a single chip microcomputer 43 and a lens 44, the optical fringe detecting device 42 is configured to obtain an interference light intensity variation generated by the second transmitted light 82 and the fourth reflected light 74 due to a stroke difference, and the single chip microcomputer 43 is configured to determine a structural deformation degree of the holding pole 90 according to the interference light intensity variation. A lens 44 is disposed between the optical fringe detecting device 42 and the half mirror 50, and the lens 44 is used for converging the second transmitted light 82 and the fourth reflected light 74. Preferably, the optical fringe detecting device 42 is an optical camera so as to capture an interference fringe image with a larger width, and the single chip microcomputer 43 calculates an interference fringe image formed by a stroke difference between the second transmitted light 82 and the fourth reflected light 74 caused by the minute movement of the first total reflecting mirror 11 and the second total reflecting mirror 31 when the holding pole 90 is deformed by using an image analysis method, and further determines the structural deformation degree of the holding pole 90.
Further, singlechip 43 still is used for sending according to embracing pole 90's structural deformation degree and embraces pole 90 and warp the alarm, and is optional, should embrace pole structural deformation detection device and still include loudspeaker, and singlechip 43 and loudspeaker are connected, and singlechip 43 sends through loudspeaker and embraces pole 90 and warp the alarm. This embrace pole structure deformation detection device still includes wireless communication module, and wireless communication module and singlechip 43 are connected, and wireless communication module is used for sending the structural deformation degree of embracing pole 90 for the host computer to the staff real time monitoring and the record that make to be located the host computer, singlechip 43 can also send the warning of embracing pole 90 deformation for the host computer through wireless communication module.
In one embodiment, the first total reflection mirror 11 is disposed in the first support 10, the light source 21 is disposed in the second support 20, the second total reflection mirror 31 is disposed in the third support 30, and the light source detection module 41 is disposed in the fourth support 40, so that the sealing arrangement ensures that the internal light path is not affected by the outside. Furthermore, the first and second telescoping mechanisms 12, 32 may be flexible, retractable plastic tubes or piston-type round tubes, and preferably, the first and second telescoping mechanisms 12, 32 are metal bellows, which are particularly suitable for small telescoping deformations.
In an alternative embodiment, the optical path in the pole-holding structure deformation detection device may be replaced by an optical fiber, i.e. the formed michelson interferometer structure is replaced by an optical fiber interferometer structure.
In another embodiment, as shown in fig. 3, a pole 90 is provided. The pole 90 includes a pole structure deformation detection device 100 provided by any embodiment of the present invention. Among them, since the center position of the pole 90 is often the most significant portion of the deformation, it is preferable that the pole structure deformation detection device 100 is provided at the center of the pole 90.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.
Claims (10)
1. The utility model provides a hold pole structure and warp detection device, sets up inside holding the pole, its characterized in that, the device includes first pillar, second pillar, third pillar, fourth pillar and semi-transparent semi-reflecting mirror, first pillar, second pillar, third pillar and fourth pillar integrated into one piece constitute cross structure, semi-transparent semi-reflecting mirror sets up cross structure's center, first pillar includes first holophote, the second pillar includes the light source, the third pillar includes the second holophote, the fourth pillar includes light source detection module, the light source with the second holophote sets up oppositely, first holophote with light source detection module sets up oppositely, semi-transparent semi-reflecting mirror is used for with incident light that the light source sent reflects as first reflection light to the transmission is first transmission light, first holophote is used for with first reflection light reflects as second reflection light, the second holophote is used for with first transmission light reflects as third reflection light, semi-reflecting mirror still is used for with the second reflection light is second reflection light, the second holophote is used for the second reflection light transmission light reflection light and the telescopic mechanism is used for the second reflection light transmission light, the telescopic mechanism is used for changing the second reflection light transmission light and the telescopic mechanism is used for producing the telescopic mechanism according to the telescopic mechanism.
2. The device according to claim 1, wherein the light source detection module comprises an optical fringe detection device and a single chip microcomputer, the optical fringe detection device is used for obtaining interference light intensity changes of the second transmission light and the fourth reflection light caused by stroke differences, and the single chip microcomputer is used for determining the structural deformation degree of the holding pole according to the interference light intensity changes.
3. The apparatus of claim 2, wherein the optical streak detection device is an optical camera.
4. The apparatus of claim 2, wherein the light source detecting module further comprises a lens disposed between the optical fringe detecting device and the half mirror, the lens being configured to converge the second transmitted light and the fourth reflected light.
5. The device according to claim 2, wherein the single chip microcomputer is further configured to issue a pole deformation alarm according to the structural deformation degree of the pole.
6. The device of claim 2, further comprising a wireless communication module, wherein the wireless communication module is used for sending the structural deformation degree of the holding pole to an upper computer.
7. The device of claim 1, wherein the first and second telescoping mechanisms are metal bellows.
8. The apparatus according to claim 1, wherein said first total reflecting mirror is disposed in said first support, said light source is disposed in said second support, said second total reflecting mirror is disposed in said third support, and said light source detecting module is disposed in said fourth support.
9. A pole comprising a pole structure deformation detection device according to any one of claims 1 to 8.
10. A pole as claimed in claim 9, wherein the pole structure deformation detection means is provided centrally of the pole.
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| CN202110314568.0A CN113124768B (en) | 2021-03-24 | 2021-03-24 | Embrace pole structure and warp detection device and embrace pole |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110314568.0A CN113124768B (en) | 2021-03-24 | 2021-03-24 | Embrace pole structure and warp detection device and embrace pole |
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| CN113124768A CN113124768A (en) | 2021-07-16 |
| CN113124768B true CN113124768B (en) | 2022-11-01 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927924A (en) * | 2012-10-10 | 2013-02-13 | 哈尔滨工程大学 | Short-base-line differential laser strain measuring instrument |
| CN204855052U (en) * | 2015-05-26 | 2015-12-09 | 南京信息工程大学 | A interfere measurement system that is used for silicon glass static bonded stress |
| CN108151666A (en) * | 2018-01-02 | 2018-06-12 | 北京理工大学 | A kind of light path of dynamic realtime detection machine tool chief axis thermal deformation errors |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864640A (en) * | 2018-08-28 | 2020-03-06 | 合肥京东方显示技术有限公司 | Optical system and method for measuring object strain by using photosensitive camera |
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- 2021-03-24 CN CN202110314568.0A patent/CN113124768B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927924A (en) * | 2012-10-10 | 2013-02-13 | 哈尔滨工程大学 | Short-base-line differential laser strain measuring instrument |
| CN204855052U (en) * | 2015-05-26 | 2015-12-09 | 南京信息工程大学 | A interfere measurement system that is used for silicon glass static bonded stress |
| CN108151666A (en) * | 2018-01-02 | 2018-06-12 | 北京理工大学 | A kind of light path of dynamic realtime detection machine tool chief axis thermal deformation errors |
Non-Patent Citations (1)
| Title |
|---|
| 40m全钢抱杆试验研究与分析;刘超等;《电力建设》;20080701;第29卷(第7期);第35-37页 * |
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