CN207992118U - A kind of compacting end carrying pulling force non-destructive testing device - Google Patents
A kind of compacting end carrying pulling force non-destructive testing device Download PDFInfo
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- CN207992118U CN207992118U CN201820453571.4U CN201820453571U CN207992118U CN 207992118 U CN207992118 U CN 207992118U CN 201820453571 U CN201820453571 U CN 201820453571U CN 207992118 U CN207992118 U CN 207992118U
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- wire rod
- cable
- pulling force
- acceleration transducer
- tiger
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Abstract
The utility model discloses the compacting end that a kind of compacting end carrying pulling force non-destructive testing device includes line nose and cable composition, cable is equipped with wire rod fixing device, and wire rod fixing device is equipped with electronic percussion hand hammer, is equipped with acceleration transducer.The utility model has the function of whether effective carrying pulling force between lossless, instant detection wire rod and line nose is qualified, it is measured indirectly by shock response and realizes lossless wire rod end carrying pull force calculation, be suitable for detecting the maximum load-carrying capacity of the wire rod after screening compresses or compress the compactor of performance qualification.
Description
Technical field
The utility model is related to power supply unit field more particularly to a kind of compacting end carrying pulling force non-destructive testing dresses
It sets.
Background technology
The cable of pre-stamped end may fall off phenomenon under external force.Such as hang on high voltage power transmission and transforming line
Prefabricated power transmission line in road between electric power tower freezes in wire rod dead weight or frost under the pulling force generated or wind-force effect, former
The phenomenon that wire rod to be compacted is likely to occur poor contact with line nose, falls off.The precompressed wire rod of design objective will be not achieved
It mounts in power transmission path, will result in serious accident and economic loss once occurring falling off.If during pre-fabricated electric cables
The pulling force that can be born to end provides a kind of effective detection method, and the cable for screening qualified is applied for engineering
Work will substantially reduce the probability that accident occurs.
Traditional cable pressing device majority does not account for that after measuring compression pulling force can be carried between line nose and conducting wire
Function.The mode of artificial drawing test firmness, the mode of this subjective judgement by worker are mostly used in Project Realization
Simple qualitative judgement can only be often done, can not accurately provide cable can bear value of thrust, and such method takes time and effort.Once
The cable that design carrying pulling tension requirements are not achieved is mounted to scene, it is possible to cable case accident occurs.In addition, though adopting
Larger power can be generated by directly being pullled with motor device, and which being capable of the extreme stressing conditions of dummycable.Although big draw
Power involve wire rod can detection cable head bearing capacity can reach requirement, but can cause wire rod during this method drawing wire rod
The damage of internal structure, in certain occasions, as high voltage power transmission and transforming power line prefabrication process in, be do not allow to carry out wire rod it is big
Pulling force involves experiment.
Utility model content
The utility model provides a kind of compacting end carrying pulling force non-destructive testing device.Utility model is using lossless
Mode measures wire rod, and the maximum carrying pulling force of end after compacting cannot be surveyed by overcoming existing end press device
It is fixed；Direct tension measures the problems such as damage to wire rod.
For the above-mentioned purpose of utility model of realization, the technical solution of the utility model is：
A kind of compacting end carrying pulling force non-destructive testing device includes the compacting end of line nose and cable composition,
The line nose is mounted on one end of cable, and the line nose is fixed by compressing tiger's jaw, and it is exceptionally straight that cable is equipped with fixation
The wire rod fixing device of cable, the wire rod fixing device be equipped with for tap generate signal excited by impact electronic percussion it is small
Hammer, the acceleration transducer for compressing tiger's jaw and being equipped with acquisition response signal；The compression tiger's jaw, adds electronic percussion hand hammer
Velocity sensor is connected on master controller, and main controller controls compress tiger's jaw, the work of electronic percussion hand hammer, acquire acceleration
Sensing data simultaneously compares and analyzes.
Preferably, the acceleration transducer uses 1000Hz sample rates to one kind as the utility model, and frequency response is not
Less than 500Hz；Master controller record is set as 5s using the acceleration transducer signals time.
The utility model has the beneficial effects that：
The utility model is while compressing wire rod with effective carrying between lossless, instant detection wire rod and line nose
The whether qualified function of pulling force is measured by shock response and realizes that lossless wire rod end carries pull force calculation, is suitable for indirectly
The maximum load-carrying capacity of wire rod after detection screening compression or the compactor for compressing performance qualification.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is that the T/F of signal composes example.
Specific implementation mode
Below in conjunction with attached drawing, the technical scheme in the utility model embodiment is clearly and completely described.
A kind of compacting end carrying pulling force lossless detection method is suppressed using shock wave is inputted after hand hammer percussion cable
End afterwards converts signal using Time-Frequency Analysis Method using acceleration transducer acquisition system response signal,
And the T/F spectrum of signal is generated, the spectral peak and the T/F of known process qualification wire rod during T/F is composed are composed
Parameter is compared, if amplitude and position coincide, judges that wire rod processing is qualified；If misfitted, it is determined as unqualified.
The T/F spectrum parameter of known process qualification wire rod is obtained using destructive testing.
As shown in Figure 1, a kind of compacting end carries pulling force non-destructive testing device, including line nose 2 and the composition of cable 3
End is suppressed, the line nose 2 is mounted on one end of cable 3, and the line nose 2 is fixed by compressing tiger's jaw 1, cable
3 are equipped with the wire rod fixing device 4 of fixed exceptionally straight cable 3, and the wire rod fixing device 4 is sharp equipped with impact is generated for percussion
Encourage the electronic percussion hand hammer 5 of signal, the acceleration transducer 6 for compressing tiger's jaw 1 and being equipped with acquisition response signal；The compression
Tiger's jaw 1, electronic percussion hand hammer 5, acceleration transducer 6 are connected on master controller 7, the control compression of master controller 7 tiger's jaw 1,
Electronic percussion hand hammer 5 works, and acquires 6 data of acceleration transducer and compares and analyzes.
The acceleration transducer uses 1000Hz sample rates, frequency response to be not less than 500Hz；Master controller record uses
The acceleration transducer signals time is set as 5s.
When work, the control of master controller 7 compresses tiger's jaw 1 and compresses line nose 2 and keep；Master controller 7 controls acceleration and passes
Sensor 6 carries out data record；After log-on data record, master controller 7 controls electronic percussion hand hammer 5 and taps wire rod fixing device 4,
Impact signal is generated, impact signal is transferred to end by cable.After the setting 5s record times, master controller 7 is by right
The data analysis that acceleration transducer 6 acquires provides the judgement whether end carrying pulling force meets index.Analytic process is profit
With Time-Frequency Analysis Method, such as continuous wavelet transform, Short Time Fourier Transform etc. converts the signal of acquisition, and generates such as
The T/F of signal shown in Fig. 2 is composed；Spectral peak during the T/F of generation is composed and known process qualification wire rod when
M- frequency spectrum parameter is compared, if amplitude and position coincide, judges that wire rod processing is qualified；If misfitted, judge
It is unqualified.
The described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on this
Embodiment in utility model, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
Claims (2)
1. a kind of compacting end carries pulling force non-destructive testing device, which is characterized in that the pressure including line nose and cable composition
End processed, the line nose are mounted on one end of cable, and the line nose is fixed by compressing tiger's jaw, and cable is equipped with
The wire rod fixing device of fixed exceptionally straight cable, the wire rod fixing device are equipped with for tapping the electricity for generating signal excited by impact
It is dynamic to tap hand hammer, the acceleration transducer for compressing tiger's jaw and being equipped with acquisition response signal；The compression tiger's jaw, electronic percussion
Hand hammer, acceleration transducer are connected on master controller, and main controller controls compress tiger's jaw, the work of electronic percussion hand hammer, adopt
Collection acceleration transducer data simultaneously compare and analyze.
2. compacting end according to claim 1 carries pulling force non-destructive testing device, which is characterized in that the acceleration
Sensor uses 1000Hz sample rates, frequency response to be not less than 500Hz；When master controller record is using acceleration transducer signals
Between be set as 5s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820453571.4U CN207992118U (en) | 2018-04-02 | 2018-04-02 | A kind of compacting end carrying pulling force non-destructive testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820453571.4U CN207992118U (en) | 2018-04-02 | 2018-04-02 | A kind of compacting end carrying pulling force non-destructive testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207992118U true CN207992118U (en) | 2018-10-19 |
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ID=63830490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820453571.4U Active CN207992118U (en) | 2018-04-02 | 2018-04-02 | A kind of compacting end carrying pulling force non-destructive testing device |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362774A (en) * | 2018-04-02 | 2018-08-03 | 福建工程学院 | A kind of compacting end carrying pulling force lossless detection method and device |
| CN110208374A (en) * | 2019-06-12 | 2019-09-06 | 国网天津市电力公司电力科学研究院 | A kind of cable connector waterproof cover airtight performance detection method and automatic knocking device |
-
2018
- 2018-04-02 CN CN201820453571.4U patent/CN207992118U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362774A (en) * | 2018-04-02 | 2018-08-03 | 福建工程学院 | A kind of compacting end carrying pulling force lossless detection method and device |
| CN110208374A (en) * | 2019-06-12 | 2019-09-06 | 国网天津市电力公司电力科学研究院 | A kind of cable connector waterproof cover airtight performance detection method and automatic knocking device |
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