CN201576919U - Power connection fitting capable of monitoring force - Google Patents
Power connection fitting capable of monitoring force Download PDFInfo
- Publication number
- CN201576919U CN201576919U CN2009202439732U CN200920243973U CN201576919U CN 201576919 U CN201576919 U CN 201576919U CN 2009202439732 U CN2009202439732 U CN 2009202439732U CN 200920243973 U CN200920243973 U CN 200920243973U CN 201576919 U CN201576919 U CN 201576919U
- Authority
- CN
- China
- Prior art keywords
- gold utensil
- electric power
- power connection
- connection fitting
- connects gold
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a power connection fitting capable of monitoring a force, which relates to the power connection fitting and comprises a power connection fitting and a processing circuit which receives a signal output by a sensing element. The sensing element is a strain gauge or a foil gauge. One or more strain gauges or foil gauges are adhered at the balanced stress position of the power connection fitting. The power connection fitting of the utility model has effect of monitoring the gravity force of a transmission line and the change thereof under the premise of not changing the structure of the original insulator string.
Description
Technical field
The utility model relates to a kind of electric armour clamp, relates in particular to a kind of electric power and connects gold utensil, is pasted with the stress sensitive element on this gold utensil, energy measurement effect power thereon.
Background technology
Present electric power connects the effect that gold utensil does not possess the power transducer, and energy measurement does not affact the size of they self strength.Owing to reasons such as power transmission line icing, need to monitor power transmission line in real time, to obtain ice covering thickness information by the active force of insulator string to iron tower.At present, two solutions are arranged usually: the first is installed a particular stent on iron tower, installing force transducer on support; Its two be the design a special insulator structure, the power transducer as a non-standard gold utensil, is placed in the insulator string and goes.
Certainly, also have some indirectly measurement methods, for example measure the lead angle change, measure lead sag variation etc.,, progressively be eliminated because model is complicated and difficult enforcement.
Above-mentioned two kinds of major programmes all have some intrinsic shortcomings:
1, because will be at different iron tower design particular stent, workload be big, simultaneously, on-the-spotly installs, changes trouble.
2, owing to changed the structure of insulator string, may cause the variation of safe distance and structural strength aspect, so that serious consequence.
Simultaneously, these power transducers all are non intelligent transducers, and they do not comprise treatment circuit, more do not comprise the algorithm that the power variation characteristic is analyzed, and cause the information therefrom extracted too single.
The utility model content
In order to solve the deficiency of such scheme, the electric power that the purpose of this utility model provides a kind of energy dynamometry connects gold utensil, under the prerequisite that does not change original insulator string structure, reaches the purpose of monitoring power transmission line gravity and variation thereof.
This novel purpose is achieved in that a kind of electric power of energy dynamometry connects gold utensil, comprise that electric power connects gold utensil, receive the treatment circuit of induction element output signal, induction element is strain gauge or foil gauge, and strain gauge that one or several is above or foil gauge (1) stick on the stress equilibrium place that described electric power connects gold utensil.
Above-mentioned treatment circuit is made up of the STM32 processor that carries 12 AD translation functions.
It is U-shaped link, parallel link plate, ball-eye, U-shaped screw or right angle ring that above-mentioned electric power connects gold utensil.
This novel beneficial effect is:
1, do not change the structure of insulator string and iron tower, make that original performance is maintained when increasing the dynamometry function.
2, at the scene in the construction, can with former standard basically identical, reduced difficulty, saved the expense of training.
3, measure by power, realize the quantitative measurment electric power line ice-covering thickness, can make detection by quantitative and early warning the ice damage harm of transmission line.
4, by mathematical computations, analyze more useful information from mechanical quantity, for example, can set up database to the change frequency and the amplitude of power in follow-up work, useful data in the deeper excavation mechanical information are done correlation analysis to conductor galloping;
Be further described below in conjunction with embodiment.
Description of drawings
Fig. 1 is a schematic diagram of pasting foil gauge on the U-shaped link.
Embodiment
Among Fig. 1, be example, showed the figure that is pasted with a foil gauge with ring-chain series connection gold utensil such as U-shaped link.Foil gauge 1 sticks on the gravity balance place (promptly straight relatively place) on the U-shaped link.
Embodiment 1:
Connect gold utensil such as U-shaped link stress equilibrium place (straight relatively place) stickup two sheet resistor foil gauges in ring-chain series, when the U-shaped link is subjected to tension, will produce deformation, this deformation meeting is by the resistance strain gage sensing.By the processing of circuit changes in resistance, can obtain the size of pulling force.
For paster is protected, can make a protective and paster is protected and be made lead and draw.In follow-up treatment circuit, can do a compensation at the material and the temperature of this gold utensil by circuit or mathematical method, so that measurement is more accurate (in fact, the real generation before and after the icing accident, the difference of strength approximately is tonne other, know therefrom, reliability be only cause close important), 12 the AD that carries by the STM32 processor changes and uses this processor processes data, analyze a long-term relatively strength added value, increase how many kilograms as per 10 minutes kinds, further, whether analysis is rocking to obtain transmission line at the mechanics spectrogram (using fft algorithm to change from the time domain to the frequency domain) of 0.1Hz in the 10HZ scope, and what a judgement is the frequency of rocking approximately be.
After possessing these data, can pass to data center by wireless SMS, methods such as GPRS, ZIGBEE as GSM, perhaps be sent in the supervisory control system on this tower and other transmit together as other data such as wind-force, wind directions by lead.
Embodiment 2:
Paste four chip semiconductor strain gauges at the stress equilibrium place (straight relatively place) that plate-plate series connects on gold utensil such as the parallel link plate, when link plate is stressed, strain gauge will sense this power.
By lead, near a Monitoring and Controlling case this information will be transferred to and be positioned at, follow-up processing is finished by the Monitoring and Controlling case.
Embodiment 3:
A slice resistance strain gage is pasted at the stress equilibrium place (straight relatively place) that connects gold utensil such as ball-eye in ball-nest series, and when link is stressed, foil gauge will sense this power.
By processing of circuit, this strain is converted into the signal of a 4-20mA, is characterizing the power of 0-10 ton, by lead, and near a Monitoring and Controlling case this information will be transferred to and be positioned at, follow-up processing is finished by the Monitoring and Controlling case.
Embodiment 4:
Connect gold utensil such as U-shaped screw stress equilibrium place (straight relatively place) stickup three sheet resistor foil gauges in ring-chain series, when the U-shaped screw is subjected to tension, will produce deformation, this deformation meeting is by the resistance strain gage sensing.
By lead, directly variable signal is delivered in the follow-up acquisition system, carry out data processing and transmission by acquisition system.
Embodiment 5:
Connect gold utensil such as ring stress equilibrium place, right angle (straight relatively place) stickup a slice strain ga(u)ge in ring-chain series, paste two sheet resistor foil gauges, when the right angle ring is subjected to tension, will produce deformation, this deformation meeting is by the resistance strain gage sensing.
By processing of circuit, this strain is converted into the signal of a 1-5V, is characterizing the power of 0-32 ton, by lead, and near a Monitoring and Controlling case this information will be transferred to and be positioned at, follow-up processing is finished by the Monitoring and Controlling case.
The all situations that the above embodiments can not the limit utility model relate to; because electric power connects the of a great variety of gold utensil; the mounting of strain gauge or foil gauge, compound mode are varied; signal processing circuit and calculation procedure vary; the technical staff is easy to design and expand according to thinking of the present utility model; draw more embodiment, still fall within the utility model protection range.
Claims (3)
1. the electric power of an energy dynamometry connects gold utensil, comprise, electric power connects gold utensil, receive the treatment circuit of induction element output signal, it is characterized in that: described induction element is strain gauge or foil gauge (1), and strain gauge that one or several is above or foil gauge (1) stick on the stress equilibrium place that described electric power connects gold utensil.
2. the electric power according to the described a kind of energy dynamometry of claim 1 connects gold utensil, and it is characterized in that: described treatment circuit is made up of the STM32 processor that carries 12 AD translation functions.
3. the electric power according to claim 1 or 2 described a kind of energy dynamometry connects gold utensil, and it is characterized in that: it is U-shaped link, parallel link plate, ball-eye, U-shaped screw or right angle ring that described electric power connects gold utensil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202439732U CN201576919U (en) | 2009-12-15 | 2009-12-15 | Power connection fitting capable of monitoring force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202439732U CN201576919U (en) | 2009-12-15 | 2009-12-15 | Power connection fitting capable of monitoring force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576919U true CN201576919U (en) | 2010-09-08 |
Family
ID=42696790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202439732U Expired - Lifetime CN201576919U (en) | 2009-12-15 | 2009-12-15 | Power connection fitting capable of monitoring force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201576919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466563A (en) * | 2010-11-05 | 2012-05-23 | 华东电网有限公司富春江水力发电厂 | Device for detecting bearing capacity of hanging ring and operation method for device |
-
2009
- 2009-12-15 CN CN2009202439732U patent/CN201576919U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466563A (en) * | 2010-11-05 | 2012-05-23 | 华东电网有限公司富春江水力发电厂 | Device for detecting bearing capacity of hanging ring and operation method for device |
| CN102466563B (en) * | 2010-11-05 | 2015-11-25 | 国家电网公司 | The method of operating of link holding capacity pick-up unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100908 |