CN113970484A - Tension test method and device for power transmission line - Google Patents
Tension test method and device for power transmission line Download PDFInfo
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- CN113970484A CN113970484A CN202111254483.4A CN202111254483A CN113970484A CN 113970484 A CN113970484 A CN 113970484A CN 202111254483 A CN202111254483 A CN 202111254483A CN 113970484 A CN113970484 A CN 113970484A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The invention belongs to the field of tension test, in particular to a tension test method and a test device for a power transmission line, aiming at the problems that the test result is mostly judged manually and the accuracy is low when the existing cable is subjected to tension test, the invention provides the following scheme, and the test method comprises the following steps: s1, fixing one end of the power transmission cable, and fixing the other end of the power transmission cable with the tension instrument; s2, pulling one of the cables through a tensile instrument to perform tensile test, wherein the tensile test device comprises a bottom plate, a vertical plate is fixedly mounted at the top of the bottom plate, a fixed seat is fixedly mounted on the right side of the vertical plate, a movable plate is arranged on the right side of the bottom plate, a transverse plate is fixedly mounted on the left side of the movable plate, a movable seat is slidably mounted at the top of the transverse plate, and slots are formed in the right side of the fixed seat and the left side of the movable seat.
Description
Technical Field
The invention relates to the technical field of tension testing, in particular to a tension testing method and a tension testing device for a power transmission line.
Background
The transmission line is realized by using a transformer to boost the electric energy generated by the generator and then connecting the electric energy to the transmission line through control equipment such as a breaker and the like. Structural style, transmission line divide into overhead transmission line and cable run, and cable run need carry out the tensile test to the cable that uses when laying, ensures that it meets the requirements.
In the prior art, when a cable is subjected to tension test, most of the test results need to be judged manually, and the accuracy is low, so that a tension test method and a tension test device for a power transmission line are provided for solving the problems.
Disclosure of Invention
The invention aims to solve the defects that in the prior art, when a cable is subjected to tension test, most of the test results need to be judged manually, and the accuracy is low, and provides a tension test method and a tension test device for a power transmission line.
In order to achieve the purpose, the invention adopts the following technical scheme:
the tension test method of the power transmission line comprises the following steps:
s1, fixing one end of the power transmission cable, and fixing the other end of the power transmission cable with the tension instrument;
s2, pulling one of the cables through a tension instrument to perform tension test;
s3, shooting and collecting the appearance of the cable through a shooting device, and setting a collected first picture as a contrast image;
s4, comparing the image collected after the image comparison with the comparison image, and collecting the tension of the tension instrument when the difference occurs;
s5, timing when the test is started, and timing again when the tension data change;
s6, collecting the time for the cable to change when the tension instrument is subjected to tension collection;
and S7, comparing the acquired data with preset qualified data, and making a final judgment.
The invention also provides a tension testing device of the power transmission line, which comprises a bottom plate, wherein a vertical plate is fixedly arranged at the top of the bottom plate, a fixed seat is fixedly arranged at the right side of the vertical plate, a movable plate is arranged at the right side of the bottom plate, a transverse plate is fixedly arranged at the left side of the movable plate, a movable seat is slidably arranged at the top of the transverse plate, slots are respectively arranged at the right side of the fixed seat and the left side of the movable seat, a tension instrument is arranged at the left side of the movable plate and connected with the movable seat, a fixing mechanism is arranged on the fixed seat and the movable seat, a transmission mechanism is arranged on the vertical plate and the movable plate, and a reinforcing mechanism is respectively arranged on the fixed seat and the movable seat.
Preferably, the fixing mechanism comprises two pressing plates, anti-skidding spines are fixedly mounted at the bottoms of the two pressing plates, vertical holes are formed in the tops of the fixing seat and the moving seat, and the outer sides of the two pressing plates are connected with the inner walls of the two vertical holes in a sliding mode.
Preferably, the two pressing plates are all provided with screw rods in a threaded manner, the outer sides of the two screw rods are all fixedly provided with inner rings of bearings, the outer sides of the two bearings are all fixedly provided with one ends of L-shaped rods, and the other ends of the two L-shaped rods are fixedly connected with the fixed seat and the top of the movable seat.
Preferably, drive mechanism installs in the riser right side and removes first axis of rotation and the second axis of rotation at seat top including rotating, and the one end fixed mounting of second axis of rotation has the rectangular shape pole, and the rectangular channel has been seted up to the one end of first axis of rotation, the outside of rectangular shape pole and the inner wall sliding connection of rectangular channel.
Preferably, the outer sides of the first rotating shaft and the second rotating shaft are fixedly provided with first bevel gears in a fixed sleeve mode, two first bevel gears are provided with second bevel gears, and the two second bevel gears are fixedly installed at the top ends of the two screw rods.
Preferably, the top of the bottom plate is fixedly provided with a cylinder through a screw, and an output shaft of the cylinder is fixedly connected with the left side of the moving plate.
Preferably, a motor is fixedly mounted on the left side of the vertical plate, and an output shaft of the motor is fixedly connected with one end of the first rotating shaft.
Preferably, the reinforcing mechanism includes two gusset plates, and the slip hole has all been seted up to the both sides of fixing base, the outside of two gusset plates respectively with the inner wall sliding connection of two slip holes, the equal fixed mounting in both sides has the L shaped plate around removing the seat, all rotate on two L shaped plates and install the power rod, two power rods and two gusset plate threaded connection, the equal fixed cover in outside of two power rods is equipped with the gear, all mesh on two gears has the rack, the equal fixed mounting in top of two racks has the connecting plate, the equal fixed mounting in top of pressure strip of two connecting plates.
Preferably, the reset groove has all been seted up to one side of two gusset plates, and two equal slidable mounting in the groove that resets have the release link, and the equal fixed mounting of one end of two release links has two tight pieces of clamp, and the equal fixed mounting of the other end of two release links has the one end of spring, the other end of two springs and one side inner wall fixed connection in two reset grooves.
Compared with the prior art, the invention has the beneficial effects that:
according to the scheme, the appearance of the cable is shot and collected through the camera equipment, the collected first picture is set as a comparison image, the image collected after the image comparison is compared with the comparison image, when the difference occurs, the tension of the tension instrument is collected, when the tension instrument is subjected to tension collection, the time for the cable to change at the tension value is collected, the collected data is compared with the preset qualified data, the final judgment is made, manual intervention is reduced, and the accuracy of the test is improved;
the two ends of the cable can be fixed through the fixing mechanism, the stability of fixing the cable can be improved through the reinforcing mechanism, loosening is avoided, and fixing can be completed through the transmission mechanism instead of manpower, so that manpower is saved;
the invention reduces manual intervention, improves the accuracy of the test and saves manpower.
Drawings
Fig. 1 is a flow chart of a tension testing method for a power transmission line according to the present invention;
fig. 2 is a schematic front view of a tension testing device for a power transmission line according to the present invention;
fig. 3 is an enlarged schematic structural diagram of a portion a in fig. 2 of the tension testing device for the power transmission line according to the present invention;
fig. 4 is a schematic perspective view of a connection between a second rotating shaft and a rectangular rod of the tension testing device for the power transmission line according to the present invention;
fig. 5 is a schematic side view of the connection between the fixing base and the pressing plate of the tension testing device for the power transmission line according to the present invention.
In the figure: 1. a base plate; 2. a vertical plate; 3. a fixed seat; 4. moving the plate; 5. a tensile force instrument; 6. a movable seat; 7. a cylinder; 8. a transverse plate; 9. a second rotating shaft; 10. a first rotating shaft; 11. a motor; 12. a rectangular groove; 13. a rectangular bar; 14. a first bevel gear; 15. a compression plate; 16. an L-shaped rod; 17. a bearing; 18. a screw; 19. a second bevel gear; 20. a slot; 21. a slide hole; 22. a reinforcing plate; 23. an L-shaped plate; 24. a power rod; 25. a connecting plate; 26. a rack; 27. a gear; 28. a clamping block; 29. a reset lever; 30. a spring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 to 5, the tension testing method of the power transmission line includes the following steps:
s1, fixing one end of the power transmission cable, and fixing the other end of the power transmission cable with the tension instrument;
s2, pulling one of the cables through a tension instrument to perform tension test;
s3, shooting and collecting the appearance of the cable through a shooting device, and setting a collected first picture as a contrast image;
s4, comparing the image collected after the image comparison with the comparison image, and collecting the tension of the tension instrument when the difference occurs;
s5, timing when the test is started, and timing again when the tension data change;
s6, collecting the time for the cable to change when the tension instrument is subjected to tension collection;
and S7, comparing the acquired data with preset qualified data, and making a final judgment.
This embodiment has still provided transmission line's tensile test device, comprising a base plate 1, the top fixed mounting of bottom plate 1 has riser 2, the right side fixed mounting of riser 2 has fixing base 3, the right side of bottom plate 1 is equipped with movable plate 4, the left side fixed mounting of movable plate 4 has diaphragm 8, the top slidable mounting of diaphragm 8 has removal seat 6, the right side of fixing base 3 and the left side of removing seat 6 all are equipped with slot 20, pulling force instrument 5 is installed in the left side of movable plate 4, pulling force instrument 5 with remove seat 6 and be connected, be equipped with fixed establishment on fixing base 3 and the removal seat 6, install drive mechanism on riser 2 and the movable plate 4, all be equipped with reinforcing mechanism on fixing base 3 and the removal seat 6.
Can be fixed with the both ends of cable through fixed establishment, can increase the stability fixed to the cable through strengthening mechanism, avoid the pine to take off, through drive mechanism's setting, can replace the manpower to accomplish fixedly, use manpower sparingly.
In this embodiment, fixed establishment includes two pressure strips 15, and the equal fixed mounting in bottom of two pressure strips 15 has anti-skidding spine, and the perpendicular hole has all been seted up at the top of fixing base 3 and removal seat 6, the outside of two pressure strips 15 and the inner wall sliding connection in two perpendicular holes.
The anti-slip spikes at the bottom of the two compression plates 15 can pierce the skin of the cable during fixing, so that the connection stability is improved.
In this embodiment, the two pressing plates 15 are all provided with the screws 18 in a threaded manner, the outer sides of the two screws 18 are all fixedly provided with the inner rings of the bearings 17, the outer sides of the two bearings 17 are all fixedly provided with one ends of the L-shaped rods 16, and the other ends of the two L-shaped rods 16 are fixedly connected with the fixed base 3 and the top of the movable base 6.
The two bearings 17 are arranged to enable the two screws 18 to stably rotate, and the two screws 18 rotate to enable the two pressing plates 15 to vertically move.
In this embodiment, drive mechanism is including rotating first axis of rotation 10 and the second axis of rotation 9 of installing in riser 2 right side and removal seat 6 top, and the one end fixed mounting of second axis of rotation 9 has rectangular rod 13, and rectangular groove 12 has been seted up to the one end of first axis of rotation 10, and the outside of rectangular rod 13 and the inner wall sliding connection of rectangular groove 12.
The rectangular rod 13 can only slide in the rectangular groove 12, and when the first rotating shaft 10 rotates, the rectangular rod 13 drives the second rotating shaft 9 to rotate.
In this embodiment, the outer sides of the first rotating shaft 10 and the second rotating shaft 9 are both fixedly sleeved with first bevel gears 14, two first bevel gears 14 are both provided with second bevel gears 19, and the two second bevel gears 19 are fixedly installed at the top ends of the two screws 18.
In this embodiment, the top of the bottom plate 1 is fixedly provided with a cylinder 7 through a screw, and an output shaft of the cylinder 7 is fixedly connected with the left side of the moving plate 4.
The moving plate 4 is pushed by the cylinder 7 to move horizontally.
In this embodiment, the motor 11 is fixedly mounted on the left side of the vertical plate 2, and an output shaft of the motor 11 is fixedly connected with one end of the first rotating shaft 10.
The first rotating shaft 10 is rotated by a motor 11.
In this embodiment, reinforcing mechanism includes two gusset plates 22, sliding hole 21 has all been seted up to the both sides of fixing base 3, the outside of two gusset plates 22 respectively with the inner wall sliding connection of two sliding hole 21, the equal fixed mounting in both sides has L shaped plate 23 around fixing base 3, all rotate on two L shaped plates 23 and install power rod 24, two power rod 24 and two gusset plate 22 threaded connection, the equal fixed cover in outside of two power rod 24 is equipped with gear 27, all mesh rack 26 on two gear 27, the equal fixed mounting in top of two rack 26 has connecting plate 25, the equal fixed mounting in top of pressure strip 15 of two connecting plate 25.
The reinforcing plate 22 is moved by the rotation of the power rod 24, and the moving directions of the two reinforcing plates 22 on the fixed seat 3 are opposite.
In this embodiment, the reset groove has all been seted up to one side of two gusset plates 22, and two equal slidable mounting in the reset groove have release link 29, and the equal fixed mounting in one end of two release link 29 has two tight blocks 28 of clamp, and the equal fixed mounting in the other end of two release link 29 has the one end of spring 30, and the other end of two springs 30 and one side inner wall fixed connection in two reset grooves.
When the two clamping blocks 28 clamp the cables, the two springs 30 contract, and therefore cables with different sizes can be accommodated.
In the invention, when in use, two ends of a cable are inserted into two slots 20, a motor 11 is started, the motor 11 drives a first rotating shaft 10 to rotate, the first rotating shaft 10 drives a second rotating shaft 9 to rotate through a rectangular rod 13, the first rotating shaft 10 and the second rotating shaft 9 drive two first bevel gears 14 to rotate, the two first bevel gears 14 drive two second bevel gears 19 to rotate, the two second bevel gears 19 drive two screw rods 18 to rotate, the two screw rods 18 rotate to enable two pressing plates 15 to press and fix two ends of the cable downwards, meanwhile, the two pressing plates 15 drive two connecting plates 25 on the pressing plates to move downwards, further four racks 26 move downwards to enable four gears 27 to rotate, the four gears 27 drive four power rods 24 to rotate to enable four reinforcing plates 22 to move, and the four reinforcing plates 22 drive four clamping blocks 28 to clamp and fix two ends of the cable, and (3) increasing the stability, then starting the air cylinder 7, enabling the air cylinder 7 to push the moving plate 4 to move rightwards, enabling the moving plate 4 to drive the tension instrument 5 to pull the moving seat 6 rightwards, and further carrying out tension test.
Claims (10)
1. The tension testing method of the power transmission line is characterized by comprising the following steps of:
s1, fixing one end of the power transmission cable, and fixing the other end of the power transmission cable with the tension instrument;
s2, pulling one of the cables through a tension instrument to perform tension test;
s3, shooting and collecting the appearance of the cable through a shooting device, and setting a collected first picture as a contrast image;
s4, comparing the image collected after the image comparison with the comparison image, and collecting the tension of the tension instrument when the difference occurs;
s5, timing when the test is started, and timing again when the tension data change;
s6, collecting the time for the cable to change when the tension instrument is subjected to tension collection;
and S7, comparing the acquired data with preset qualified data, and making a final judgment.
2. The tension testing device of the power transmission line comprises a bottom plate (1) and is characterized in that a vertical plate (2) is fixedly installed at the top of the bottom plate (1), a fixed seat (3) is fixedly installed on the right side of the vertical plate (2), the right side of bottom plate (1) is equipped with movable plate (4), the left side fixed mounting of movable plate (4) has diaphragm (8), the top slidable mounting of diaphragm (8) has removal seat (6), the right side of fixing base (3) and the left side of removing seat (6) all are equipped with slot (20), pulling force instrument (5) are installed in the left side of movable plate (4), pulling force instrument (5) are connected with removal seat (6), be equipped with fixed establishment on fixing base (3) and removal seat (6), install drive mechanism on riser (2) and movable plate (4), all be equipped with reinforcing mechanism on fixing base (3) and removal seat (6).
3. The tension testing device of the power transmission line according to claim 2, wherein the fixing mechanism comprises two compression plates (15), anti-skid spikes are fixedly mounted at the bottoms of the two compression plates (15), vertical holes are formed in the tops of the fixed seat (3) and the movable seat (6), and the outer sides of the two compression plates (15) are slidably connected with the inner walls of the two vertical holes.
4. The tension testing device of the power transmission line according to claim 3, characterized in that the two compression plates (15) are respectively provided with a screw (18) in a threaded manner, the outer sides of the two screws (18) are respectively and fixedly provided with an inner ring of a bearing (17), the outer sides of the two bearings (17) are respectively and fixedly provided with one end of an L-shaped rod (16), and the other ends of the two L-shaped rods (16) are fixedly connected with the tops of the fixed seat (3) and the movable seat (6).
5. The tension testing device of the power transmission line according to claim 2, wherein the transmission mechanism comprises a first rotating shaft (10) and a second rotating shaft (9) which are rotatably mounted on the right side of the vertical plate (2) and the top of the movable seat (6), a rectangular rod (13) is fixedly mounted at one end of the second rotating shaft (9), a rectangular groove (12) is formed in one end of the first rotating shaft (10), and the outer side of the rectangular rod (13) is in sliding connection with the inner wall of the rectangular groove (12).
6. The tension testing device of the power transmission line according to claim 5, characterized in that the outer sides of the first rotating shaft (10) and the second rotating shaft (9) are fixedly sleeved with first bevel gears (14), two first bevel gears (14) are respectively provided with a second bevel gear (19), and the two second bevel gears (19) are fixedly arranged at the top ends of the two screw rods (18).
7. The tension testing device of the power transmission line according to claim 2, wherein the top of the bottom plate (1) is fixedly provided with a cylinder (7) through a screw, and an output shaft of the cylinder (7) is fixedly connected with the left side of the moving plate (4).
8. The tension testing device of the power transmission line according to claim 5, characterized in that a motor (11) is fixedly mounted on the left side of the vertical plate (2), and an output shaft of the motor (11) is fixedly connected with one end of the first rotating shaft (10).
9. The tension testing device of the power transmission line according to claim 2, wherein the reinforcing mechanism comprises two reinforcing plates (22), sliding holes (21) are formed in two sides of the fixed seat (3), the outer sides of the two reinforcing plates (22) are respectively in sliding connection with the inner walls of the two sliding holes (21), L-shaped plates (23) are fixedly mounted on the front side and the rear side of the movable seat (3), power rods (24) are rotatably mounted on the two L-shaped plates (23), the two power rods (24) are in threaded connection with the two reinforcing plates (22), gears (27) are fixedly sleeved on the outer sides of the two power rods (24), racks (26) are meshed on the two gears (27), connecting plates (25) are fixedly mounted on the tops of the two racks (26), and the two connecting plates (25) are fixedly mounted on the tops of the pressing plates (15).
10. The tension testing device of the power transmission line according to claim 9, wherein each of two reinforcing plates (22) is provided with a reset groove, each of the two reset grooves is slidably provided with a reset rod (29), each of one ends of the two reset rods (29) is fixedly provided with a clamping block (28), each of the other ends of the two reset rods (29) is fixedly provided with one end of a spring (30), and the other end of each of the two springs (30) is fixedly connected with the inner wall of one side of each of the two reset grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111254483.4A CN113970484A (en) | 2021-10-27 | 2021-10-27 | Tension test method and device for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111254483.4A CN113970484A (en) | 2021-10-27 | 2021-10-27 | Tension test method and device for power transmission line |
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| CN113970484A true CN113970484A (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111254483.4A Pending CN113970484A (en) | 2021-10-27 | 2021-10-27 | Tension test method and device for power transmission line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116481924A (en) * | 2023-06-21 | 2023-07-25 | 成都四威科技股份有限公司 | Wire and cable tension testing equipment and testing method thereof |
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