CN211292736U - Strain clamp aluminum stranded conductor crimping quality detection device - Google Patents
Strain clamp aluminum stranded conductor crimping quality detection device Download PDFInfo
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- CN211292736U CN211292736U CN201921652352.XU CN201921652352U CN211292736U CN 211292736 U CN211292736 U CN 211292736U CN 201921652352 U CN201921652352 U CN 201921652352U CN 211292736 U CN211292736 U CN 211292736U
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Abstract
The utility model discloses a strain clamp aluminum stranded conductor crimping quality detection device, steel anchor and aluminum stranded conductor after the crimping, closely attached in the crimping position carry out the external test probe that detects and with external test probe electric connection's digital ultrasonic detection device, wait to examine the even couplant of coating in surface. The utility model provides a strain clamp aluminum stranded conductor crimping quality detection device aims at detecting the crimping quality to the inside condition at the form audio-visual display crimping position of image, and then discovers the crimping defect, thereby accurate judgement crimping quality.
Description
Technical Field
The utility model belongs to the technical field of electric power industry transmission line safety inspection, concretely relates to strain clamp aluminum stranded conductor crimping quality detection device and method.
Background
At present, the power transmission industry in China continuously develops an intelligent and strong extra-high voltage large power grid, and a multi-voltage-class alternating-current and direct-current complementary power grid structure of +/-800 kV, 1000kV and the like is constructed. Due to the complex structure of the power grid, three-span lines such as a highway, a railway, an important power transmission channel and the like are often crossed, the strain clamp of the strain iron tower of the power transmission line is tested seriously, if the crimping quality of the strain clamp is unqualified, certain potential safety hazard exists on the operation of the power transmission line in the later period, and therefore, the online detection of the crimping quality of the steel core of the strain clamp aluminum stranded wire is very necessary.
After the tension-resistant wire clamp is crimped, detection methods such as appearance detection, size measurement and mechanical property spot check are often adopted, so that the requirement for accurately detecting the crimping quality of the wire clamp is difficult to meet, and the crimping quality hidden danger in the later installation process is caused.
Disclosure of Invention
The utility model aims to solve the technical problem that, it is not enough to prior art, provide a strain clamp aluminum stranded conductor crimping quality detection device and method, aim at detecting the crimping quality to the inside condition at the form intuitionally display crimping position of image, and then discover the crimping defect, thereby accurate judgement crimping quality.
In order to achieve the above object, the utility model provides a following technical scheme:
a strain clamp aluminum stranded wire compression joint quality detection device comprises an upper computer, an external detection probe and a digital ultrasonic detection device;
the external detection probe is arranged on the surface of the steel anchor; the external detection probe is electrically connected with the digital ultrasonic detection device; the digital ultrasonic detection device is connected with an upper computer;
the digital ultrasonic detection device is used for sending out an ultrasonic signal, the ultrasonic signal is transmitted to a workpiece to be detected through the external detection probe to obtain an ultrasonic echo signal, and the ultrasonic echo signal is reflected to the external detection probe; the external detection probe is used for transmitting ultrasonic signals sent by the digital ultrasonic detection device and receiving ultrasonic echo signals reflected back after being transmitted to a workpiece to be detected, and the reflected ultrasonic echo signals are transmitted to the upper computer through the ultrasonic detection device; the upper computer is used for controlling the digital ultrasonic detection device to send out ultrasonic signals, receiving and processing ultrasonic echo signals transmitted by the ultrasonic detection device and obtaining detection images.
Furthermore, the external detection probe adopts a phased array probe.
Furthermore, the digital ultrasonic detection device adopts an ultrasonic phased array detector.
The utility model has the advantages that:
the utility model discloses on being pressed the ultrasonic detection probe gently and being connected the plane central line by the pressure measurement, along the axis of ordinates direction from beginning to end slow movement detection crimping face, turn into the signal of telecommunication that detects directly perceived picture, through the interval between every figure size, figure and the figure of observing to carry out contrastive analysis with the scope value after the standard requirement crimping, thereby judge whether qualified the crimping makes testing process accuracy directly perceived.
Drawings
Fig. 1 is a schematic structural view of the ultrasonic probe of the present invention performing ultrasonic detection on a steel anchor;
wherein, 1: an external detection probe; 2: a steel anchor; 3: an aluminum stranded wire.
Fig. 2 is a schematic structural view of a bundle of wires.
FIG. 3 is a partially enlarged view showing the internal structure of FIG. 2;
wherein, 4: a steel core; 5: an aluminum sleeve.
FIG. 4 is an echo reflection imaging plot;
wherein, 6: a launch initiation zone; 7: a steel core strand imaging area; 8: steel core line imaging coil.
Detailed Description
For a better understanding of the present invention, the following further description is made in conjunction with the accompanying drawings and the specific embodiments:
a strain clamp aluminum stranded wire compression joint quality detection device comprises an upper computer, an external detection probe 1 and a digital ultrasonic detection device;
the external detection probe 1 is arranged on the surface of the steel anchor; the external detection probe 1 is electrically connected with the digital ultrasonic detection device; the digital ultrasonic detection device is connected with the upper computer;
the digital ultrasonic detection device is used for sending out an ultrasonic signal, the ultrasonic signal is transmitted to a workpiece to be detected through the external detection probe 1 to obtain an ultrasonic echo signal, and the ultrasonic echo signal is reflected to the external detection probe 1; the external detection probe 1 is used for transmitting ultrasonic signals sent by a digital ultrasonic detection device and receiving ultrasonic echo signals reflected back after being transmitted to a workpiece to be detected, and the reflected ultrasonic echo signals are transmitted to an upper computer through the ultrasonic detection device; the upper computer is used for controlling the digital ultrasonic detection device to send out ultrasonic signals, receiving and processing ultrasonic echo signals transmitted by the ultrasonic detection device to obtain a detection image, and the aluminum stranded wire 3 is used for transmitting electric energy, and the steel anchor 2 and the aluminum sleeve 5 are used for connecting an electric power fitting.
The utility model discloses an external test probe 1 adopts the phased array probe.
The utility model discloses a digital ultrasonic testing device adopts ultrasonic wave phased array detector.
The utility model discloses an aluminum stranded conductor 3 includes steel core 4, and steel core 4 sets up at aluminum stranded conductor 3 center, and steel core 4 is used for increasing aluminum stranded conductor 3's intensity.
The utility model discloses an application method as follows:
the utility model discloses the detection step of device does:
and step S1, carrying out overlapped continuous crimping on the connecting part of the steel anchor 2 and the aluminum stranded wire 3 by adopting a hydraulic machine to obtain a workpiece to be measured.
And step S2, laying the workpiece to be measured obtained in the step S1 flatly, and coating a coupling agent on the outer wall of the compression joint part of the steel anchor 2.
And step S3, fully contacting the external detection probe 1 with the outer wall of the steel anchor 2, starting an upper computer to control the digital ultrasonic detection device to emit ultrasonic waves, horizontally moving the external detection probe 1 along the pressed area to be detected, and forming an electric signal by using the time difference of incidence and reflection of the detection ultrasonic waves to obtain a detection image.
Step S4, comparing the detection image obtained in the step S3 with the image after standard crimping requirement, and analyzing the crimping quality of the strain clamp, wherein the steps are as follows:
as shown in fig. 4, the size and shape of the multiple sets of steel core wire imaging coils 8 and the distance between the steel core wire imaging coils 8 and the steel core wire imaging coils 8 are displayed by the upper computer, and whether the size, shape and distance of each steel core wire imaging coil 8 are different greatly is observed:
when the difference is larger, a larger gap is present, and the product is unqualified;
when the phase difference is within the range value, a smaller gap is present, and the product is qualified;
by the detection method, whether the product after pressure welding is qualified or not is judged.
Step S5, after the workpiece to be detected is qualified, the steel anchor 2 and the aluminum sleeve 5 are subjected to compression joint detection, and the method specifically comprises the following steps:
step S51, carrying out overlapped continuous crimping on the connecting part of the steel anchor 2 and the aluminum sleeve 5 by adopting a hydraulic machine to obtain a workpiece to be measured;
step S52, laying the workpiece to be tested obtained in the step S51 in a flat manner, and coating a coupling agent on the outer wall of the compression joint part of the steel anchor 2;
step S53, the external detection probe 1 is fully contacted with the outer wall of the steel anchor 2, the upper computer is started to control the digital ultrasonic detection device to send out ultrasonic waves, the external detection probe 1 is enabled to horizontally move along the pressed area to be detected, and an electric signal is formed by utilizing the time difference of incidence and reflection of the detection ultrasonic waves to obtain a detection image;
as shown in fig. 4, the size and shape of the multiple sets of steel core wire imaging coils 8 and the distance between the steel core wire imaging coils 8 and the steel core wire imaging coils 8 are displayed by the upper computer, and whether the size, shape and distance of each steel core wire imaging coil 8 are different greatly is observed:
when the difference is larger, a larger gap is present, and the product is unqualified;
when the phase difference is within the range value, a smaller gap is present, and the product is qualified;
by the detection method, whether the product after pressure welding is qualified or not is judged.
In step S6, the imaging data that has been detected as being qualified is numbered and stored.
The working principle of the utility model is as follows:
the digital ultrasonic detection device excites a group of transducer array elements to generate ultrasonic signals, the ultrasonic signals are transmitted into a workpiece to be detected through a coupling agent, and if no air gap exists at the contact position of the steel anchor 2 and the steel core 4, no echo is reflected at the interface of the steel anchor 2 and the steel core 4; on the contrary, if an air gap is formed at the contact part of the steel anchor 2 and the steel core 4, the ultrasonic wave is reflected after encountering the air gap, and returns to the external detection probe 1, so that the echo can be detected, and the echo reflection condition is monitored in an image mode by utilizing the imaging principle; the utility model discloses a whether the high-tension clamp crimping is qualified is judged to echo reflection condition and the formation of image condition of control 4 stranded conductor departments of steel core.
The present invention is not limited to the above-described embodiments, but only to the preferred embodiments of the present invention, and the present invention is not limited thereto, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (3)
1. A strain clamp aluminum stranded wire compression joint quality detection device is characterized by comprising an upper computer, an external detection probe (1) and a digital ultrasonic detection device;
the external detection probe (1) is arranged on the surface of the steel anchor; the external detection probe (1) is electrically connected with the digital ultrasonic detection device; the digital ultrasonic detection device is connected with an upper computer;
the digital ultrasonic detection device is used for sending out an ultrasonic signal, the ultrasonic signal is transmitted to a workpiece to be detected through the external detection probe (1) to obtain an ultrasonic echo signal, and the ultrasonic echo signal is reflected to the external detection probe (1); the external detection probe (1) is used for transmitting ultrasonic signals sent by a digital ultrasonic detection device and receiving ultrasonic echo signals reflected back after being transmitted to a workpiece to be detected, and the reflected ultrasonic echo signals are transmitted to an upper computer through the ultrasonic detection device; the upper computer is used for controlling the digital ultrasonic detection device to send out ultrasonic signals, receiving and processing ultrasonic echo signals transmitted by the ultrasonic detection device and obtaining detection images.
2. The strain clamp aluminum stranded wire compression joint quality detection device according to claim 1, wherein the external detection probe (1) adopts a phased array probe.
3. The strain clamp aluminum stranded wire crimping quality detection device according to claim 1, wherein the digital ultrasonic detection device adopts an ultrasonic phased array detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921652352.XU CN211292736U (en) | 2019-09-30 | 2019-09-30 | Strain clamp aluminum stranded conductor crimping quality detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921652352.XU CN211292736U (en) | 2019-09-30 | 2019-09-30 | Strain clamp aluminum stranded conductor crimping quality detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211292736U true CN211292736U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921652352.XU Active CN211292736U (en) | 2019-09-30 | 2019-09-30 | Strain clamp aluminum stranded conductor crimping quality detection device |
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| Country | Link |
|---|---|
| CN (1) | CN211292736U (en) |
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2019
- 2019-09-30 CN CN201921652352.XU patent/CN211292736U/en active Active
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