CN110160899A - A kind of device applying alternation tension to high-voltage conducting wires - Google Patents
A kind of device applying alternation tension to high-voltage conducting wires Download PDFInfo
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- CN110160899A CN110160899A CN201910468091.4A CN201910468091A CN110160899A CN 110160899 A CN110160899 A CN 110160899A CN 201910468091 A CN201910468091 A CN 201910468091A CN 110160899 A CN110160899 A CN 110160899A
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- conducting wires
- voltage conducting
- alternation tension
- sliding
- strain clamp
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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
- G01N3/02—Details
- G01N3/04—Chucks
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electromagnetism (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of device for applying alternation tension to high-voltage conducting wires, the device for applying alternation tension includes pedestal, power section, running part and drive part；The power section includes fixed motor on the base；The drive part includes the strain clamp fixed mechanism for connecting the strain clamp of high-voltage conducting wires, and the strain clamp fixed mechanism is slidably connected by oriented sliding component with pedestal, being capable of sliding axially along high-voltage conducting wires on the base；The running part is driven using connecting rod of eccentric wheel, and including the eccentric wheel and kinematic link connecting with motor output end, kinematic link one end and eccentric wheel are hinged, and the other end and strain clamp fixed mechanism are hinged.The present invention can apply alternation tension to high-voltage conducting wires using driving mechanism, and simulated high-pressure conducting wire is influenced by alternation tension in the axial direction, and the security evaluation for high wind region transmission line of electricity provides reference data.
Description
Technical field
The present invention relates to power test equipment technical fields, and in particular to a kind of dress for applying alternation tension to high-voltage conducting wires
It sets.
Background technique
Cover one of five province of northwest (Shaanxi, Gansu, Ningxia, Qinghai, Xinjiang) and the Inner Mongol in China, area, great Northwest
Point, the gross area is about the one third in the whole nation, and total population is about ten a quarters in the whole nation.Strategic position is important, natural resources
It is abundant, it is deep to hide great potential, especially energy resources, no matter the equal reserves of the new energy such as fossil energy or wind and solar energy
Considerable, prospect is tempting.The Northwest's new energy construction simultaneously is like a raging fire, until five province's the whole network total installation of generating capacity of northwest in 2016 is
Up to 400,000,000 kilowatts, wherein 70% or more can be used for sending outside.So far, 3 channels put into operation, remaining passway for transmitting electricity
Also preliminary preparation is promptly being done, it is contemplated that next year will put into operation successively.According to initial estimate, this 12 UHV transmission channels
Ability to transmit electricity can ensure that the power demand in Beijing-Tianjin Hebei and Shandong, the Yangtze River Delta, Pearl River Delta area, can reduce above-mentioned area after building up every year
About 100,000,000 tons of consumption of coal of mark, this is for improving Beijing-Tianjin Hebei and Shandong, the external power supply in Yangtze River Delta Area and supportability, alleviating environment pressure
Power has very great meaning.
But it is dispersed with the region of a large amount of harsher wind conditions in the Northwest, it is high and cold dry that high voltage power transmission corridor will frequently pass through these
Drought desert and Gobi area short of rain, harsher wind conditions will cause great influence to power transmission and transformation line.Currently, 750kV transmission line of electricity
With building ± 800kV, ± 1100kV transmission line of electricity by Xinjiang, include western hundred inner Wind-sandy Areas and -40 DEG C of the lowest temperature of spy
Different meteorologic district, and in recent years, the power transmission and transforming equipment for being located at the strong wind areas such as Xinjiang " three areas Shi Lifeng " and " area Bai Lifeng " has occurred
A lot of wire strand breakage events, 8 grades of region or more wind speed annual number of days up to 160 days, wherein 12 grades and the above high wind weather it is close
90 days, harsh climate environment greatly tested the safe operation of route.
Different from the power transmission and transformation line conducting wire on the interior ground mechanism stranded because of aeolian vibration, high pressure is caused to be led in high wind region
The stranded mechanism of line is a kind of low-cycle fatigue fracture.The high-voltage conducting wires in the area such as Xinjiang under the action of high wind, do one kind for a long time
Class swing shape is swung, and has the conducting wire of the same race on the relatively interior ground of large amplitude, high stress, prolonged feature, thus its service life
Service life is greatly reduced, and causes strong influence to the power transmission and transformation line safe operation in the region.Currently, having there is relevant pendulum
Dynamic test and testing equipment are used to study the fatigue problem and stranded reason of high wind region high-voltage conducting wires, but existing equipment can not
Completely true simulation actual environment, therefore the result tested and inaccurate are insufficient to provide more accurate reference to study
Data.
Summary of the invention
The present invention for the technical problems in the prior art, provides a kind of dress for applying alternation tension to high-voltage conducting wires
It sets, alternation tension can be applied to high-voltage conducting wires using driving mechanism, simulated high-pressure conducting wire is in the axial direction by the shadow of alternation tension
It rings, the security evaluation for high wind region transmission line of electricity provides reference data.
The technical scheme to solve the above technical problems is that a kind of dress for applying alternation tension to high-voltage conducting wires
It sets, the device for applying alternation tension includes pedestal, power section, running part and drive part；The power part subpackage
Include fixed motor on the base；The drive part includes that the strain clamp for connecting the strain clamp of high-voltage conducting wires is fixed
Mechanism, the strain clamp fixed mechanism are slidably connected with pedestal by oriented sliding component, can be led on the base along high pressure
Line slides axially；The running part is driven using connecting rod of eccentric wheel, including the eccentric wheel connecting with motor output end and biography
Dynamic connecting rod, kinematic link one end and eccentric wheel are hinged, and the other end and strain clamp fixed mechanism are hinged.
The beneficial effects of the present invention are: the present invention is driven by motor by a set of eccentric wheel mechanism of setting, it can be to high pressure
Conducting wire applies alternation tension, and high-voltage conducting wires is enabled constantly to be in the state of " pine-is tight-loose " transformation, can cooperate to swing and survey
Examination equipment is influenced by alternation tension in the axial direction when simulated high-pressure conducting wire very true to nature is acted on by high wind, solves laboratory
It simulates high wind region high-voltage conducting wires and swings the inaccurate problem of testing fatigue result, it is disconnected to probe into high wind sand region high-voltage conducting wires
The real mechanism of stock has established experimental basis；The present invention can repeat test of many times, to greatest extent the practical feelings in simulation scene
Condition saves a large amount of human and material resources.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the running part further includes having eccentricity regulating mechanism, and the motor output end passes through eccentricity tune
Section mechanism is connect with eccentric wheel.
Beneficial effect using above-mentioned further scheme is: the eccentricity of eccentric wheel can be made adjustable, so that whole device
Can be according to different regions, the wind conditions of Various Seasonal, by adjusting eccentricity, the alternation tension that regulating device applies is done
To accurate simulation actual environment.
Further, the eccentricity regulating mechanism includes being threaded through the adjusting screw rod of eccentricity regulating mechanism and being provided with partially
The limiting slot on heart distance regulating mechanism surface；The eccentric wheel bottom is fixedly installed limited block, and offers screw hole；The limit
In limiting slot, screw hole is threadedly engaged block with adjusting screw rod.
Beneficial effect using above-mentioned further scheme is: adjusting more convenient, it is only necessary to turn eccentricity regulating mechanism
Screw rod can complete the adjusting of eccentricity.
Further, strain clamp fixed mechanism bottom is provided with fixed plate, fixed plate by oriented sliding component with
Pedestal is slidably connected.
Beneficial effect using above-mentioned further scheme is: in simulation test, the sliding of device is more steady, avoid because
Vibration and twisting are generated in sliding process leads to error.
Further, the oriented sliding component includes being fixed at the sliding slot of fixed plate bottom and being fixed at pedestal
The sliding rail of top surface, the sliding rail are in sliding fit with the sliding chute in sliding slot；The sliding slot is preferred " swallow-tail form ", the sliding rail
It is preferred that " swallow-tail form " compatible with sliding slot shape.
Beneficial effect using above-mentioned further scheme is: in simulation test, it can be ensured that is finally applied to high pressure and leads
The alternation tension of line is the alternation tension in axial direction, and force direction is avoided to be not allowed to lead to error.
Further, the strain clamp fixed mechanism includes the fixing clamp of fixed strain clamp, is worn on the fixing clamp
There is drive rod；The drive rod both ends have been arranged symmetrically a pair of bearing, and drive rod and bearing block are rotatablely connected, the bearing block
It is fixedly mounted in fixed plate.The drive rod is preferably rotatablely connected with fixing clamp.The strain clamp fixed mechanism is preferably adopted
To flowering structure: drive rod two sides are fixedly installed with sliding track mechanism, and the sliding track mechanism is arranged symmetrically, is provided on sliding track mechanism
Arc chute, the gag lever post matched with arc chute is fixedly installed on the bearing block, and gag lever post is embedded in sliding track mechanism
Arc chute in.
Beneficial effect using above-mentioned further scheme is: in simulation test, can guarantee that axial alternation tension is applied
Add more smooth and steady, is further ensured that the accurate of test data.
Further, the motor is preferably servo-controlled motor.
Beneficial effect using above-mentioned further scheme is: the output revolving speed of servo-controlled motor is more stable accurate, from
Dynamicization function is more, can adapt to the testing requirement of the high-voltage conducting wires of more polytypic.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of eccentricity regulating mechanism of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of eccentric wheel of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of drive part of the embodiment of the present invention；
In attached drawing, parts list represented by the reference numerals are as follows:
1, strain clamp, 2, strain clamp fixed mechanism, 2a, fixing clamp, 2b, drive rod, 2c, sliding track mechanism, 3, bearing
Seat, 3a, gag lever post, 4, fixed plate, 4a, sliding slot, 5, pedestal, 5a, sliding rail, 6, kinematic link, 7, eccentricity regulating mechanism, 7a,
Adjusting screw rod, 7b, limiting slot, 8, motor, 9, eccentric wheel, 9a, limited block, 9b, screw hole, 10, high-voltage conducting wires.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in Figure 1, a kind of device for applying alternation tension to high-voltage conducting wires that the present invention designs, the application alternation
The device of power includes pedestal 5, power section, running part and drive part.
The power section includes the motor 8 being fixed on pedestal 5, applies tension for whole device and provides power.In order to
Bigger power is provided, the high-voltage conducting wires 10 of more polytypic are adapted to, the motor 8 preferably uses servo-controlled motor.
The drive part includes the strain clamp fixed mechanism 2 for connecting the strain clamp 1 of high-voltage conducting wires 10, described
Strain clamp fixed mechanism 2 is slidably connected by oriented sliding component with pedestal 5, can be on pedestal 5 along high-voltage conducting wires 10
It slides axially.
The running part is driven using connecting rod of eccentric wheel, and the eccentric wheel 9 including connecting with 8 output end of motor and transmission connect
Bar 6,6 one end of kinematic link and eccentric wheel 9 are hinged, and the other end and strain clamp fixed mechanism 2 are hinged.Running part can will be electric
The rotational power that machine 8 exports is converted into the linear reciprocation power in axial direction, cooperates drive part, just can apply for high-voltage conducting wires 10
Axial alternation tension.
As shown in Figure 2 and Figure 3, the present invention provides another eccentricity in order to the various harsher wind conditions of real simulation
The improved technology scheme that can be adjusted on a large scale, in improved technology scheme, the running part further includes having eccentricity to adjust machine
Structure 7,8 output end of motor are connect by eccentricity regulating mechanism 7 with eccentric wheel 9.
The eccentricity regulating mechanism 7 can preferably be used with flowering structure: the tune including being threaded through eccentricity regulating mechanism 7
The section screw rod 7a and limiting slot 7b for being provided with 7 surface of eccentricity regulating mechanism；9 bottom of eccentric wheel is fixedly installed limited block
9a, and offer screw hole 9b；In limiting slot 7b, screw hole 9b is threadedly engaged the limited block 9a with adjusting screw rod 7a.
In the present solution, the output end of motor 8 can be directly fixedly connected with eccentricity regulating mechanism 7, connection type can
In a manner of being cooperated using retainingf key and keyway.
In the present solution, the eccentricity of eccentric wheel 9 is adjustable, the device of this programme can be according to different regions, Various Seasonal
Wind conditions, by adjusting eccentricity, the alternation tension that regulating device applies is accomplished accurately to simulate actual environment.And it adjusts
It is very convenient, using the structure of this programme, when needing to adjust eccentricity, only need the tune of turn eccentricity regulating mechanism 7
Section screw rod 7a can change the position of eccentric wheel 9, to complete the adjusting of eccentricity.
As shown in figure 4, the present invention also provides another improvement in order to guarantee that device is more smooth in axial output
Technical solution, in improved technology scheme, fixed plate 4, fixed plate 4 has been can be set in 2 bottom of strain clamp fixed mechanism
It is slidably connected by oriented sliding component and pedestal 5.The oriented sliding component is preferably used with flowering structure: including fixed setting
4 bottom of fixed plate sliding slot 4a and be fixed at the sliding rail 5a of 5 top surface of pedestal, the sliding rail 5a in sliding slot 4a,
It is slidably matched with sliding slot 4a.The sliding slot 4a is preferred " swallow-tail form ", the sliding rail 5a " swallow preferably compatible with sliding slot 4a shape
Tail shape ".
Using this programme, motor 8 drives fixed plate 4 to run by kinematic link 6, due to there is the sliding rail of oriented sliding component
The limitation of 5a and sliding slot 4a, fixed plate 4 in axial direction can be moved back and forth smoothly, be put down to realize and provide high-voltage conducting wires 10
Suitable alternation tension, accurately simulates harsher wind conditions.
As shown in figure 4, the present invention also provides another improvement in order to further increase in the ride comfort axially exported
Technical solution, in improved technology scheme, the strain clamp fixed mechanism 2 is preferably used with flowering structure: including fixed strain insulator
Drive rod 2b is equipped on the fixing clamp 2a, the fixing clamp 2a of wire clamp 1；The both ends the drive rod 2b have been arranged symmetrically a pair of of axis
Seat 3 is held, drive rod 2b and bearing block 3 are rotatablely connected, and the bearing block 3 is fixedly mounted in fixed plate 4.The drive rod 2b is excellent
Choosing is rotatablely connected with fixing clamp 2a.
This programme can also do following improvement: sliding track mechanism 2c, the cunning can also be fixedly mounted in the two sides the drive rod 2b
Rail mechanism 2c is arranged symmetrically, and arc chute is provided on sliding track mechanism 2c, is fixedly installed on the bearing block 3 and arc chute
The gag lever post 3a matched, gag lever post 3a are in the arc chute of sliding track mechanism 2c.
In the present solution, the reciprocal operation of fixed plate 4 in axial direction have passed through the buffering of bearing block 3 and drive rod 2b, with
And the buffering of sliding track mechanism 2c, it more can smoothly be applied on high-voltage conducting wires 10.It can be further ensured that the accurate of force
Property.
The course of work of the invention is as follows:
Firstly, the relevant parameter for the wind environment simulated as needed, adjusts eccentricity regulating mechanism 7, determines eccentricity.
Then, starter, motor 8 start running, and eccentricity regulating mechanism 7 is driven to rotate, and are driven and are passed by eccentric wheel 9
Dynamic connecting rod 6 is run.
Finally, kinematic link 6 drives strain clamp fixed mechanism 2, in the sliding rail 5a and sliding slot 4a of oriented sliding component
Under limitation, is run along axial reciprocating, to simulate harsher wind conditions, the alternation tension of axial direction is applied with to high-voltage conducting wires 10.
According to the detection in simulation test to the indices data of high-voltage conducting wires 10, it can show that high-voltage conducting wires 10 exist
The delta data of various performance parameters under high wind conditions, to study under the harsher wind conditions fatigue problem of high-voltage conducting wires 10 and stranded
Reason provides data reference.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. it is a kind of to high-voltage conducting wires apply alternation tension device, it is characterised in that: it is described apply alternation tension device include
Pedestal (5), power section, running part and drive part；The power section includes the motor (8) being fixed on pedestal (5)；
The drive part includes the strain clamp fixed mechanism (2) for connecting the strain clamp of high-voltage conducting wires (10) (1), described resistance to
Bracing cable folder fixed mechanism (2) is slidably connected by oriented sliding component with pedestal (5), can be on pedestal (5) along high-voltage conducting wires
(10) slide axially；The running part is driven using connecting rod of eccentric wheel, including the eccentric wheel connecting with motor (8) output end
(9) and kinematic link (6), hingedly, the other end and strain clamp fixed mechanism (2) are cut with scissors for kinematic link (6) one end and eccentric wheel (9)
It connects.
2. the device according to claim 1 for applying alternation tension to high-voltage conducting wires, it is characterised in that: the running part
It further include having eccentricity regulating mechanism (7), motor (8) output end is connected by eccentricity regulating mechanism (7) and eccentric wheel (9)
It connects.
3. the device according to claim 2 for applying alternation tension to high-voltage conducting wires, it is characterised in that: the eccentricity tune
Section mechanism (7) includes being threaded through the adjusting screw rod (7a) of eccentricity regulating mechanism (7) and being provided with eccentricity regulating mechanism (7) table
The limiting slot (7b) in face；Eccentric wheel (9) bottom is fixedly installed limited block (9a), and offers screw hole (9b)；The limit
In limiting slot (7b), screw hole (9b) is threadedly engaged position block (9a) with adjusting screw rod (7a).
4. the device according to claim 1 for applying alternation tension to high-voltage conducting wires, it is characterised in that: the strain clamp
Fixed mechanism (2) bottom is provided with fixed plate (4), and fixed plate (4) is slidably connected by oriented sliding component with pedestal (5).
5. the device according to claim 4 for applying alternation tension to high-voltage conducting wires, it is characterised in that: the oriented sliding
Component includes the sliding slot (4a) for being fixed at fixed plate (4) bottom and the sliding rail (5a) for being fixed at pedestal (5) top surface, institute
Sliding rail (5a) is stated in sliding slot (4a), is slidably matched with sliding slot (4a).
6. the device according to claim 5 for applying alternation tension to high-voltage conducting wires, it is characterised in that: the sliding slot (4a)
For " swallow-tail form ", the sliding rail (5a) is " swallow-tail form " compatible with sliding slot (4a) shape.
7. the device according to claim 4 for applying alternation tension to high-voltage conducting wires, it is characterised in that: the strain clamp
Fixed mechanism (2) includes the fixing clamp (2a) of fixed strain clamp (1), is equipped with drive rod (2b) on the fixing clamp (2a)；
Drive rod (2b) both ends have been arranged symmetrically a pair of bearing (3), and drive rod (2b) and bearing block (3) are rotatablely connected, described
Bearing block (3) is fixedly mounted on fixed plate (4).
8. the device according to claim 7 for applying alternation tension to high-voltage conducting wires, it is characterised in that: the drive rod
(2b) and fixing clamp (2a) is rotatablely connected.
9. the device according to claim 7 for applying alternation tension to high-voltage conducting wires, it is characterised in that: the drive rod
The two sides (2b) are fixedly installed with sliding track mechanism (2c), and the sliding track mechanism (2c) is arranged symmetrically, and are provided on sliding track mechanism (2c)
Arc chute is fixedly installed the gag lever post (3a) matched with arc chute on the bearing block (3), and gag lever post (3a) is set
In the arc chute of sliding track mechanism (2c).
10. applying the device of alternation tension described in any one to high-voltage conducting wires according to claim 1~9, it is characterised in that:
The motor (8) is servo-controlled motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468091.4A CN110160899A (en) | 2019-05-31 | 2019-05-31 | A kind of device applying alternation tension to high-voltage conducting wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468091.4A CN110160899A (en) | 2019-05-31 | 2019-05-31 | A kind of device applying alternation tension to high-voltage conducting wires |
Publications (1)
| Publication Number | Publication Date |
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| CN110160899A true CN110160899A (en) | 2019-08-23 |
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ID=67630355
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910468091.4A Pending CN110160899A (en) | 2019-05-31 | 2019-05-31 | A kind of device applying alternation tension to high-voltage conducting wires |
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| Country | Link |
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| CN (1) | CN110160899A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702186A (en) * | 2021-09-24 | 2021-11-26 | 国网四川省电力公司电力科学研究院 | Power transmission line strain clamp crimping detection device and method |
| CN117260516A (en) * | 2023-11-22 | 2023-12-22 | 北京特思迪半导体设备有限公司 | Eccentric driving mechanism and polishing machine |
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| CN102564717A (en) * | 2012-01-13 | 2012-07-11 | 华北电力大学（保定） | Overhead conductor galloping testing device and testing method on basis of gear-end displacement excitation |
| CN206268237U (en) * | 2016-12-14 | 2017-06-20 | 武汉科技大学 | A kind of variable eccentric for fatigue tester |
| CN108489832A (en) * | 2018-05-03 | 2018-09-04 | 国网新疆电力有限公司电力科学研究院 | A kind of high-voltage conducting wires swing fatigue tester |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564717A (en) * | 2012-01-13 | 2012-07-11 | 华北电力大学（保定） | Overhead conductor galloping testing device and testing method on basis of gear-end displacement excitation |
| CN206268237U (en) * | 2016-12-14 | 2017-06-20 | 武汉科技大学 | A kind of variable eccentric for fatigue tester |
| CN108489832A (en) * | 2018-05-03 | 2018-09-04 | 国网新疆电力有限公司电力科学研究院 | A kind of high-voltage conducting wires swing fatigue tester |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113702186A (en) * | 2021-09-24 | 2021-11-26 | 国网四川省电力公司电力科学研究院 | Power transmission line strain clamp crimping detection device and method |
| CN117260516A (en) * | 2023-11-22 | 2023-12-22 | 北京特思迪半导体设备有限公司 | Eccentric driving mechanism and polishing machine |
| CN117260516B (en) * | 2023-11-22 | 2024-03-08 | 北京特思迪半导体设备有限公司 | Eccentric driving mechanism and polishing machine |
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