CN205248745U - Power transmission line straining device is prevented speeding to shake by electronic lead screw - Google Patents
Power transmission line straining device is prevented speeding to shake by electronic lead screw Download PDFInfo
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- CN205248745U CN205248745U CN201520942822.1U CN201520942822U CN205248745U CN 205248745 U CN205248745 U CN 205248745U CN 201520942822 U CN201520942822 U CN 201520942822U CN 205248745 U CN205248745 U CN 205248745U
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- transmission
- electricity tower
- air velocity
- transmission line
- tower body
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Abstract
The utility model provides a power transmission line straining device is prevented speeding to shake by electronic lead screw, it links to each other and to constitute transmission line to pass through the transmission pressure by a plurality of transmission of electricity tower bodies, it sets up transmission pressure tensioning means to separate at a plurality of transmission of electricity tower body tops, transmission pressure tensioning means is including establishing the air velocity transducer at transmission of electricity tower body top, transmission of electricity tower body upper portion sets up the cavity region, set up elevator motor in the cavity region, be equipped with the lift lead screw that one end links to each other with the regional last lateral wall of cavity on the elevator motor output shaft, set up the lift span that supplies the cross arm to pass on the annular lateral wall in cavity region, cross arm and lift lead screw screw -thread fit, air velocity transducer and elevator motor establish electrical connection with PLC respectively, are connected the relay output circuit who has the state feedback function between PLC and the air velocity transducer, and PLC receives the wind speed signal of air velocity transducer feedback, real time control elevator motor's operating condition. The utility model discloses safe and reliable, degree of automation is high, can ensure the reliable operation of transmission pressure under great load.
Description
Technical field
The utility model relates to power domain, the anti-galloping power transmission line tension of especially a kind of electronic screw mandrel dressPut.
Background technology
Galloping is a kind of low frequency on cold district transmission pressure, wind-induced vibration significantly of often occurring in. ?In most cases, when the wind of horizontal direction is when becoming the transmission pressure of noncircular cross section because of icing, instituteCause aerodynamic force can cause that wire brandishes up and down, become galloping. When galloping occurs, full shelves overhead transmission lineDo significantly wave vibration, and have swing concurrently, swinging track direction sub-elliptical shape. Due to gallopingAmplitude is large, and therefore a last very long is easy to cause alternate flashover, the damage of gold utensil, causesLine tripping has a power failure, forgets about it the major accident such as line bar, transmission of electricity interruption. In recent years, along with China's high-tension lineExtensive construction, galloping problem becomes increasingly conspicuous. 14 circuits in for example Hubei once occurred 28 in 1 yearThe large leap in mountain pass for several times large galloping continuously in inferior galloping accident, especially 500KV Pingwu line Hubei, maximum is speededAmplitude even exceedes 15m, and therefore transmission pressure galloping is great asking urgently to be resolved hurrily in transmission line of electricity safetyOne of topic.
Summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, provides a kind of safe and reliable, automaticThe anti-galloping power transmission line of the electronic screw mandrel take-up device that change degree is high, to overcome existing transmission pressure installation sideFormula easily produces significantly wind-induced vibration, and then causes alternate flashover, the damage of gold utensil, causes power transmission lineRoad tripping operation has a power failure, forgets about it the problem of the major accident such as line bar, transmission of electricity interruption.
The utility model solves the technical scheme that its technical problem adopts:
The anti-galloping power transmission line of a kind of electronic screw mandrel take-up device, comprises multiple transmission of electricity tower bodies, each transmission of electricityAt least one cross-arm is set on tower body, the corresponding insulator being provided with for fixing transmission pressure in cross-arm bottom,Multiple transmission of electricity tower bodies connect and compose transmission line of electricity in turn by transmission pressure, also comprise be disposed on multiple defeatedThe transmission pressure pulling assembly at electricity tower body top;
Described transmission pressure pulling assembly comprises that interval is arranged on the air velocity transducer at transmission of electricity tower body top, transmission of electricityTower body top arranges hollow region, and a lifting motor is set in hollow region, in hollow region, vertically installs oneElevating screw, elevating screw bottom is connected with lifting motor output shaft, and bearing is passed through in elevating screw upper endBe connected with the upper side wall of hollow region, on the annular sidewall of hollow region, offer the liter passing for cross-armFall hole, cross-arm is threaded connection and coordinates with elevating screw;
Above-mentioned air velocity transducer and lifting motor are set up electrical connection, PLC and wind by control line and PLC respectivelyBetween speed sensor, connect the outputting circuit for relay with state feedback function, it is anti-that PLC receives air velocity transducerThe wind velocity signal of feedback, controls the duty of lifting motor in real time.
Described lifting motor is servomotor.
Described insulator is glass insulator or ceramic insulator.
The anti-galloping power transmission line of the electronic screw mandrel of one of the present utility model take-up device compared with prior art,The beneficial effect producing is,
1, be designed with air velocity transducer, air velocity transducer interval is arranged on transmission of electricity tower body top, air velocity transducerBe connected with PLC and between the two, be connected the outputting circuit for relay with state feedback function, when wind speed surpassesWhile crossing design load, it sends a pulse signal to PLC, the closed access of control relay switch PLC, according toThe pulse signal of feedback, controls the rotating speed of lifting motor in real time, through the motion state of drive lead screw control crossbeam,By the transmission pressure tension between adjacent transmission of electricity tower body, whole adjustment process does not need manual intervention, has realizedThe automation requirement of equipment; Lifting motor adopts servomotor, and its rotor speed is subject to input signal control, andEnergy fast reaction, its control rate, positional precision are all very accurate;
2, interval, multiple transmission of electricity tower body top is designed with transmission pressure pulling assembly, and its kind of drive is lifting silkThe bar kind of drive, because transmission pressure length is longer, has larger weight, and elevating screw kind of drive energyEnough runnings reliably in the situation that of larger load, have ensured to regulate accuracy highly, have guaranteed to transmit electricity and have ledEffective tension of line;
3, between cross-arm bottom and transmission pressure, adopt insulator to be connected, insulator be glass insulator orCeramic insulator, electric leakage can be effectively avoided in such design, prevents the generation of security incident.
Brief description of the drawings
Accompanying drawing 1 is main TV structure schematic diagram of the present utility model;
Accompanying drawing 2 is structural representations of the transmission pressure pulling assembly that adopts of the utility model.
In figure, 1, transmission of electricity tower body one, 2, transmission of electricity tower body two, 3, transmission of electricity tower body three, 4, transmission pressure, 5,Upper cross-arm, 6, lower cross-arm, 7, glass insulator, 8, deep groove ball bearing, 9, wind velocity sensor, 10,Lift span, 11, elevating screw, 12, control line, 13, outputting circuit for relay, 14, servomotor.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-2, to the electronic screw mandrel of one of the present utility model, anti-galloping power transmission line tension fillsPut and be described in detail below.
As shown in accompanying drawing 1,2, the anti-galloping power transmission line of the electronic screw mandrel of one of the present utility model take-up device,Its structure comprises transmission of electricity tower body 1, transmission of electricity tower body 22 and transmission of electricity tower body 33, transmission of electricity tower body 22 and transmission of electricityBetween tower body 1 and transmission of electricity tower body 33, be connected to form transmission line of electricity by transmission pressure 4 respectively, transmission of electricityOn tower body 1, transmission of electricity tower body 22 and transmission of electricity tower body 33, cross-arm 5 and lower cross-arm 6 are set respectively, top railLoad 5 glass insulator 7 that be provided with for fixing transmission pressure 4 corresponding to lower cross-arm 6 bottoms; Transmission of electricity tower bodyTransmission pressure pulling assembly is set on 22, comprises the air velocity transducer 9 that is arranged on transmission of electricity tower body 22 tops,Transmission of electricity tower body 22 tops arrange hollow region, and lifting motor 14 is set in hollow region, perpendicular in hollow regionThe straight elevating screw 11 of installing, elevating screw 11 bottoms are connected with servomotor 14 output shafts, elevating screw11 upper ends are connected with the upper side wall of hollow region by deep groove ball bearing 8, around the annular side of hollow regionOn wall, offer and keep supplying the lift span 10 that cross-arm 5 and lower cross-arm 6 pass, upper cross-arm 5 and lower cross-arm 6 with riseFall screw mandrel 11 and be threaded connection respectively cooperation; Above-mentioned air velocity transducer 9 and servomotor 14 pass through respectivelyControl line 12 is set up electrical connection with PLC, between PLC and air velocity transducer 9, is connected and has feedback of status meritThe outputting circuit for relay 13 of energy, PLC receives the wind velocity signal that air velocity transducer 9 feeds back, and controls and watches in real timeTake the duty of motor 14.
In the technical scheme of the present embodiment, described glass insulator 7 is also replaceable is ceramic insulator.
Its processing and fabricating of the anti-galloping power transmission line of the electronic screw mandrel of one of the present utility model take-up device is simply squareJust, processing and fabricating shown in by specification accompanying drawing.
Except the technical characterictic described in description, be the known technology of those skilled in the art.
Claims (3)
1. the anti-galloping power transmission line of an electronic screw mandrel take-up device, comprises multiple transmission of electricity tower bodies, each defeatedOn electricity tower body, at least one cross-arm is set, the corresponding insulator being provided with for fixing transmission pressure in cross-arm bottom,Multiple transmission of electricity tower bodies connect and compose transmission line of electricity in turn by transmission pressure, it is characterized in that, also comprise intervalBe arranged on the transmission pressure pulling assembly at multiple transmission of electricity tower bodies top;
Described transmission pressure pulling assembly comprises that interval is arranged on the air velocity transducer at transmission of electricity tower body top, transmission of electricityTower body top arranges hollow region, and a lifting motor is set in hollow region, in hollow region, vertically installs oneElevating screw, elevating screw bottom is connected with lifting motor output shaft, and bearing is passed through in elevating screw upper endBe connected with the upper side wall of hollow region, on the annular sidewall of hollow region, offer the liter passing for cross-armFall hole, cross-arm is threaded connection and coordinates with elevating screw;
Above-mentioned air velocity transducer and lifting motor are set up electrical connection, PLC and wind by control line and PLC respectivelyBetween speed sensor, connect the outputting circuit for relay with state feedback function, it is anti-that PLC receives air velocity transducerThe wind velocity signal of feedback, controls the duty of lifting motor in real time.
2. the anti-galloping power transmission line of the electronic screw mandrel of one according to claim 1 take-up device, its spyLevy and be, described lifting motor is servomotor.
3. the anti-galloping power transmission line of the electronic screw mandrel of one according to claim 1 and 2 take-up device,It is characterized in that, described insulator is glass insulator or ceramic insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942822.1U CN205248745U (en) | 2015-11-24 | 2015-11-24 | Power transmission line straining device is prevented speeding to shake by electronic lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520942822.1U CN205248745U (en) | 2015-11-24 | 2015-11-24 | Power transmission line straining device is prevented speeding to shake by electronic lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205248745U true CN205248745U (en) | 2016-05-18 |
Family
ID=55947818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520942822.1U Expired - Fee Related CN205248745U (en) | 2015-11-24 | 2015-11-24 | Power transmission line straining device is prevented speeding to shake by electronic lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205248745U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066552A (en) * | 2018-09-12 | 2018-12-21 | 国网江苏省电力有限公司泰州供电分公司 | A kind of protector for transmission line |
| CN110783876A (en) * | 2019-11-04 | 2020-02-11 | 国网河南省电力公司偃师市供电公司 | Tension device of power transmission line |
| CN110939309A (en) * | 2019-11-26 | 2020-03-31 | 闽江学院 | Transmission tower with liftable truss |
| CN110939308A (en) * | 2019-11-07 | 2020-03-31 | 闽江学院 | Power transmission tower with truss lifting function |
-
2015
- 2015-11-24 CN CN201520942822.1U patent/CN205248745U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066552A (en) * | 2018-09-12 | 2018-12-21 | 国网江苏省电力有限公司泰州供电分公司 | A kind of protector for transmission line |
| CN110783876A (en) * | 2019-11-04 | 2020-02-11 | 国网河南省电力公司偃师市供电公司 | Tension device of power transmission line |
| CN110939308A (en) * | 2019-11-07 | 2020-03-31 | 闽江学院 | Power transmission tower with truss lifting function |
| CN110939308B (en) * | 2019-11-07 | 2021-10-26 | 闽江学院 | Power transmission tower with truss lifting function |
| CN110939309A (en) * | 2019-11-26 | 2020-03-31 | 闽江学院 | Transmission tower with liftable truss |
| CN110939309B (en) * | 2019-11-26 | 2021-10-26 | 闽江学院 | Transmission tower with liftable truss |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161124 |