CN115979820B - Transmission line tension testing method and device - Google Patents
Transmission line tension testing method and device Download PDFInfo
- Publication number
- CN115979820B CN115979820B CN202310210710.6A CN202310210710A CN115979820B CN 115979820 B CN115979820 B CN 115979820B CN 202310210710 A CN202310210710 A CN 202310210710A CN 115979820 B CN115979820 B CN 115979820B
- Authority
- CN
- China
- Prior art keywords
- cable
- air duct
- fixedly connected
- pipe
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a tension testing device for a power transmission line, which comprises: a bottom plate; the clamping mechanisms are arranged on the left side and the right side of the top of the bottom plate; the cable fixing mechanism is arranged at the top of the bottom plate and is positioned between the two clamping mechanisms. According to the invention, the two ends of the cable are clamped by the two clamping mechanisms, the cable is pulled in opposite directions, firstly, whether the cable is broken or not can be judged, secondly, the cable tensile capacity can be primarily judged, the blower is used for blowing air into the front air duct, and according to the moving distance of the piston, the number of cracks on the cable can be judged, so that the tensile capacity of the cable can be further judged, because the more the cracks on the cable are, the more air entering the rear air duct through the fixed pipe is, and the moving distance of the piston is larger.
Description
Technical Field
The invention relates to the field of power transmission lines, in particular to a power transmission line tension testing method and a power transmission line tension testing device.
Background
The power transmission line is realized by boosting the electric energy generated by the generator by using a transformer and accessing the electric energy into the power transmission line through control equipment such as a circuit breaker and the like. The power transmission line is divided into an overhead power transmission line and a cable line in a structural form. The overhead transmission line is composed of a line pole tower, a wire, an insulator, line hardware, a stay wire, a pole tower foundation, a grounding device and the like, and is erected on the ground. According to the nature of the transmission current, power transmission is classified into ac power transmission and dc power transmission. The 19 th century, the 80 th year, successfully achieved dc transmission first. However, the voltage of the direct current transmission is difficult to continue to increase under the current technical conditions, so that the transmission capacity and the benefit are limited. At the end of the 19 th century, direct current transmission was gradually replaced by alternating current transmission. The success of ac transmission has brought into the new era of electrified society of the 20 th century.
At present, before a cable in a power transmission line is erected, the tensile capacity of the cable needs to be sampled and detected to ensure that the tensile capacity of the erected cable meets the requirement, the cable is prevented from being broken in future use, when the tensile capacity of the cable is detected, whether the cable is broken is usually used as a standard whether the cable is qualified or not, however, certain errors exist in the detection method, if more cracks appear on the cable in the detection process, the cable is classified as unqualified, however, the number of the cracks on the cable is difficult to count effectively, and therefore the accuracy of the tensile capacity detection of the cable is limited.
Disclosure of Invention
The invention aims to provide a power transmission line tension testing method and a testing device, which are used for solving the technical problems.
The invention aims to solve the technical problems, and is realized by adopting the following technical scheme:
a transmission line tension testing device, comprising: a bottom plate; the clamping mechanisms are arranged on the left side and the right side of the top of the bottom plate; the cable fixing mechanism is arranged at the top of the bottom plate and is positioned between the two clamping mechanisms.
Preferably, the clamping mechanism comprises: the electric telescopic rod is fixedly connected with the bottom plate through a connecting block; the first clamping plate is fixedly connected with the electric telescopic end of the electric telescopic rod; the second clamping plate is connected with the first clamping plate and the electric telescopic end through the first screw rod.
Preferably, the clamping mechanism further comprises: the sliding block is fixedly connected with the bottom of the second clamping plate; the sliding block is connected with the sliding rail in a sliding way, and the sliding rail is fixedly connected with the bottom plate.
Preferably, the clamping mechanism further comprises: the antiskid plate is fixedly arranged on one side of the first clamping plate opposite to the second clamping plate.
Preferably, the cable fixing mechanism includes: a fixed tube; the front air duct is fixedly connected and communicated with the fixed pipe through a plurality of connecting pipes; the rear air duct is made of transparent materials, and is fixedly connected and communicated with the fixed pipe through a plurality of connecting pipes; the front air duct is fixedly connected and communicated with the plurality of exhaust pipes; sealing covers are fixedly arranged at the left end and the right end of the rear air duct and the left end of the front air duct; the piston is connected in the rear air duct in a sliding manner and fixedly connected with the right end of the rear air duct through a first spring.
Preferably, the cable fixing mechanism further includes: one end of the bent pipe is fixedly connected with the right end of the front air duct; the other end of the bent pipe is connected with the air outlet end of the blower.
Preferably, the cable fixing mechanism further includes: the front air duct and the rear air duct are fixedly provided with a plurality of upper connecting blocks; the lower connecting block, a plurality of lower connecting blocks have been set firmly to the bottom plate top surface, go up the connecting block and pass through screwed connection between the connecting block down.
The beneficial effects of the invention are as follows:
1. according to the invention, the two ends of the cable are clamped by the two clamping mechanisms, the cable is pulled in opposite directions, firstly, whether the cable is broken or not can be judged, secondly, the cable tensile capacity can be primarily judged, the blower is used for blowing air into the front air duct, and according to the moving distance of the piston, the number of cracks on the cable can be judged, so that the tensile capacity of the cable can be further judged, because the more the cracks on the cable are, the more air entering the rear air duct through the fixed pipe is, and the moving distance of the piston is larger.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a top view of the cable retention mechanism;
reference numerals: 1. an electric telescopic rod; 2. an electric telescopic end; 3. a lower connecting block; 4. a connecting block; 5. a bottom plate; 6. a first clamping plate; 7. a cleat; 8. a second clamping plate; 9. a first screw; 10. a slide rail; 11. a slide block; 12. a connecting pipe; 13. a screw; 14. an upper connecting block; 15. a rear airway; 16. a fixed tube; 17. a piston; 18. a first spring; 19. sealing cover; 20. a cable; 21. bending the pipe; 22. a blower; 23. a front airway; 25. and an exhaust pipe.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present invention are obtained, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-3, a tension testing device for a power transmission line includes: a bottom plate 5; the clamping mechanisms are arranged on the left side and the right side of the top of the bottom plate 5; the cable fixing mechanism is arranged at the top of the bottom plate 5 and is positioned between the two clamping mechanisms.
The fixture includes: the electric telescopic rod 1 is fixedly connected with the bottom plate 5 through the connecting block 4; the first clamping plate 6 is fixedly connected with the electric telescopic end 2 of the electric telescopic rod 1; the second clamping plate 8 is connected with the first clamping plate 6 and the electric telescopic end 2 through a first screw rod 9; the sliding block 11 is fixedly connected with the bottom of the second clamping plate 8; the sliding rail 10, the sliding block 11 is in sliding connection with the sliding rail 10, and the sliding rail 10 is fixedly connected with the bottom plate 5; the antiskid plate 7 is fixedly arranged on one side of the first clamping plate 6 opposite to the second clamping plate 8.
Working principle: the cable 20 is placed between the two clamping mechanisms, the end part of the cable 20 is placed between the first clamping plate 6 and the second clamping plate 8, the first screw rod 9 is rotated, the end part of the cable 20 is clamped by the first clamping plate 6 and the second clamping plate 8 in a matched mode, then the electric telescopic end 2 of the electric telescopic rod 1 is controlled to retract, the cable 20 is stretched, and the tensile capacity of the cable 20 can be primarily judged through whether the cable 20 is broken or not.
Example 2
As shown in fig. 1 to 3, in the case where the other portions are the same as in embodiment 1, this embodiment differs from embodiment 1 in that: the cable fixing mechanism includes: a fixed tube 16; the front air duct 23, the front air duct 23 is fixedly connected and communicated with the fixed pipe 16 through a plurality of connecting pipes 12; the rear air duct 15 is made of transparent material, and the rear air duct 15 is fixedly connected and communicated with the fixed pipe 16 through a plurality of connecting pipes 12; the exhaust pipes 25, the front air guide pipe 23 is fixedly connected and communicated with a plurality of the exhaust pipes 25; sealing covers 19 are fixedly arranged at the left end and the right end of the rear air duct 15 and the left end of the front air duct 23; the piston 17 is connected in the rear air duct 15 in a sliding manner, and the piston 17 is fixedly connected with the right end of the rear air duct 15 through a first spring 18; the bent pipe 21, one end of the bent pipe 21 is fixedly connected with the right end of the front air duct 23; the blower 22, the other end of the bent pipe 21 is connected with the air outlet end of the blower 22; the upper connecting blocks 14 are fixedly arranged on the front air duct 23 and the rear air duct 15; the lower connecting block 3, the bottom plate 5 top surface has set firmly a plurality of lower connecting blocks 3, connects through screw 13 between upper connecting block 14 and the lower connecting block 3.
Working principle: before the cable 20 is clamped by the first clamping plate 6 and the second clamping plate 8, the cable 20 passes through the fixed pipe 16, the upper connecting block 14 and the lower connecting block 3 are connected together through the screw 13, after the cable 20 is stretched, the blower 22 is started to blow a certain amount of air into the front air guide pipe 23, the air in the front air guide pipe 23 enters the fixed pipe 16 through the front connecting pipe 12, then enters the rear connecting pipe 12 through a crack on the cable 20, and then enters the rear air guide pipe 15, the driving piston 17 slides to compress the first spring 18, according to the moving distance of the piston 17, the number of cracks on the cable 20 can be judged, so that the tensile capacity of the cable 20 is further judged, because the more the cracks on the cable 20 are, the more air enters the rear air guide pipe 15 through the fixed pipe 16, and the moving distance of the piston 17 is larger.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a transmission line tensile testing device which characterized in that: comprising the following steps:
a bottom plate (5);
the clamping mechanisms are arranged on the left side and the right side of the top of the bottom plate (5);
the cable fixing mechanism is arranged at the top of the bottom plate (5) and is positioned between the two clamping mechanisms;
the cable fixing mechanism includes:
a fixed tube (16);
the front air duct (23), the front air duct (23) is fixedly connected and communicated with the fixed pipe (16) through a plurality of connecting pipes (12);
the rear air duct (15) is made of transparent materials, and the rear air duct (15) is fixedly connected and communicated with the fixed pipe (16) through a plurality of connecting pipes (12);
the exhaust pipes (25), the front air guide pipe (23) is fixedly connected and communicated with the plurality of exhaust pipes (25);
the sealing covers (19) are fixedly arranged at the left end and the right end of the rear air duct (15) and the left end of the front air duct (23);
the piston (17) is connected in the rear air duct (15) in a sliding way, and the piston (17) is fixedly connected with the right end of the rear air duct (15) through a first spring (18);
the device comprises an elbow pipe (21), wherein one end of the elbow pipe (21) is fixedly connected with the right end of a front air duct (23);
the other end of the bent pipe (21) is connected with the air outlet end of the air blower (22);
the front air duct (23) and the rear air duct (15) are fixedly provided with the upper connecting blocks (14);
the lower connecting block (3), a plurality of lower connecting blocks (3) have been set firmly to bottom plate (5) top surface, go up and connect through screw (13) between connecting block (14) and the lower connecting block (3).
2. The transmission line tension testing apparatus according to claim 1, wherein: the clamping mechanism comprises:
the electric telescopic rod (1) is fixedly connected with the bottom plate (5) through the connecting block (4);
the first clamping plate (6) is fixedly connected with the electric telescopic end (2) of the electric telescopic rod (1);
the second clamping plate (8), the second clamping plate (8) is connected with the first clamping plate (6) and the electric telescopic end (2) through the first screw rod (9).
3. The transmission line tension testing apparatus according to claim 2, wherein: the clamping mechanism further comprises:
the sliding block (11), the said sliding block (11) is fixedly connected with bottom of the second clamp plate (8);
the sliding block (11) is connected with the sliding rail (10) in a sliding manner, and the sliding rail (10) is fixedly connected with the bottom plate (5).
4. A transmission line tension testing apparatus as defined in claim 3, wherein: the clamping mechanism further comprises:
the antiskid plate (7) is fixedly arranged on one side, opposite to the second clamping plate (8), of the first clamping plate (6).
5. The method for testing the tension testing device for the power transmission line according to claim 4, wherein: comprising the following steps:
placing the cable (20) between the two clamping mechanisms, enabling the first clamping plate (6) and the second clamping plate (8) to be matched with each other to clamp the end part of the cable (20), then controlling the electric telescopic end (2) of the electric telescopic rod (1) to retract, enabling the cable (20) to be stretched in a tightening mode, and primarily judging the tensile capacity of the cable (20) through whether the cable (20) is broken or not;
after the cable (20) is stretched, a blower (22) is started to blow air into the front air guide pipe (23), the air in the front air guide pipe (23) enters the fixed pipe (16) through the front connecting pipe (12), then enters the rear connecting pipe (12) through a crack on the cable (20), then enters the rear air guide pipe (15), the piston (17) is driven to slidingly compress the first spring (18), and the amount of the crack on the cable (20) is judged according to the moving distance of the piston (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310210710.6A CN115979820B (en) | 2023-03-07 | 2023-03-07 | Transmission line tension testing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310210710.6A CN115979820B (en) | 2023-03-07 | 2023-03-07 | Transmission line tension testing method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115979820A CN115979820A (en) | 2023-04-18 |
| CN115979820B true CN115979820B (en) | 2023-07-18 |
Family
ID=85960595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310210710.6A Active CN115979820B (en) | 2023-03-07 | 2023-03-07 | Transmission line tension testing method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115979820B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206211429U (en) * | 2016-12-08 | 2017-05-31 | 湖北麻城市恒鑫电力设备制造有限责任公司 | A kind of fastening clip for cable used for transmission line |
| KR20200069704A (en) * | 2018-12-07 | 2020-06-17 | 탑테크(주) | System for testing of stress corrosion cracking |
| CN218412057U (en) * | 2022-11-01 | 2023-01-31 | 山东八零特种电缆有限公司 | Be used for cable ageing resistance experimental apparatus |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5197323A (en) * | 1990-07-13 | 1993-03-30 | Sparta, Inc. | Pebble-bed heater and shock tube assembly |
| CN205404275U (en) * | 2016-02-04 | 2016-07-27 | 京缆电缆有限公司 | Pulling force machine anchor clamps for cable |
| CN206583840U (en) * | 2017-01-22 | 2017-10-24 | 中国科学院武汉岩土力学研究所 | The Triaxial tester of the rock-soil material coefficient of expansion can be tested |
| CN207517422U (en) * | 2017-12-06 | 2018-06-19 | 东莞万丰电线电缆有限公司 | A kind of fire prevention band-armored |
| CN108106938B (en) * | 2017-12-21 | 2018-09-21 | 西南石油大学 | A method of experiment determines that acid solution influences dense carbonate Young's modulus |
| CN208705167U (en) * | 2018-07-12 | 2019-04-05 | 江西省羽绒制品质量监督检验中心（江西省羽绒制品研究院） | A kind of device for measuring force of fabric strength machine |
| CN209387368U (en) * | 2018-10-30 | 2019-09-13 | 陈正汉 | A kind of unsaturated soil multifunctional triaxial instrument and its sample preparation device |
| DE212020000011U1 (en) * | 2020-02-14 | 2020-04-02 | Suzhou Huihua New Material Technology Co. , Ltd. | A special device for tensile testing of textile materials |
| CN213337110U (en) * | 2020-08-11 | 2021-06-01 | 山东黄金矿业科技有限公司深井开采实验室分公司 | Drawing testing device for pipe seam type anchor rod |
| CN213933374U (en) * | 2020-10-30 | 2021-08-10 | 广东宏力工程检测有限公司 | Horizontal tensile testing machine with protection effect |
| CN214794175U (en) * | 2021-01-26 | 2021-11-19 | 河南吉诚电力工程有限公司 | Cable breakage detection device |
| CN114354386A (en) * | 2022-01-10 | 2022-04-15 | 陶隽永 | On-line material performance test instrument for building |
| CN217111777U (en) * | 2022-04-10 | 2022-08-02 | 上海比拉兹科技有限公司 | Car cable performance detection device |
-
2023
- 2023-03-07 CN CN202310210710.6A patent/CN115979820B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206211429U (en) * | 2016-12-08 | 2017-05-31 | 湖北麻城市恒鑫电力设备制造有限责任公司 | A kind of fastening clip for cable used for transmission line |
| KR20200069704A (en) * | 2018-12-07 | 2020-06-17 | 탑테크(주) | System for testing of stress corrosion cracking |
| CN218412057U (en) * | 2022-11-01 | 2023-01-31 | 山东八零特种电缆有限公司 | Be used for cable ageing resistance experimental apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115979820A (en) | 2023-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115979820B (en) | Transmission line tension testing method and device | |
| CN104020400A (en) | Subsection alternating current voltage withstanding test method for 750kV insulation tool and instrument | |
| CN204086456U (en) | 750kV insulating tool segmentation alternating-current voltage resistance test device | |
| CN206920476U (en) | Telescopic clip-on ammeter | |
| CN217981707U (en) | Cable alternating current withstand voltage test device | |
| CN208226472U (en) | A kind of distribution line is built with fixed device | |
| CN215866885U (en) | Digital bridge device for high-reliability cable detection | |
| CN216289460U (en) | Wire separating mechanism | |
| CN202275111U (en) | Transient wave full-voltage fault recording on-line detection apparatus | |
| CN213717505U (en) | Comprehensive management platform terminal electric appliance cabinet convenient for classifying and bundling cables | |
| CN214203481U (en) | Multifunctional insulating rod | |
| CN220251549U (en) | Wire and cable test fixture | |
| CN213455423U (en) | Elbow roundness detection device for electric power construction flat cable | |
| CN208255278U (en) | A kind of lv power cable pressure test wiring fixture of safe ready | |
| CN215005713U (en) | Terminal equipment wire clamp protection tube test device for power cable | |
| CN203909227U (en) | 220kV and 330kV insulation tool AC high-voltage holding test device | |
| CN218449370U (en) | Hanging erection support for bus duct | |
| CN108808533A (en) | A kind of device and method for power equipment maintaining | |
| CN210835040U (en) | Ammeter arrangement device for high-voltage line detection | |
| CN220983350U (en) | Test main clamp for comprehensive test platform of transformer | |
| CN208690850U (en) | A kind of high-tension cable laying apparatus | |
| CN218099276U (en) | Special insulating wire supporting bracket for electrical test | |
| CN210220867U (en) | Compression type strain clamp size measurement device | |
| CN218240226U (en) | Wire direct current resistance testing arrangement | |
| CN219498341U (en) | Grounding wire clamp for insulation resistance tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |