CN110793740A - Insulator fatigue test device - Google Patents
Insulator fatigue test device Download PDFInfo
- Publication number
- CN110793740A CN110793740A CN201911300031.8A CN201911300031A CN110793740A CN 110793740 A CN110793740 A CN 110793740A CN 201911300031 A CN201911300031 A CN 201911300031A CN 110793740 A CN110793740 A CN 110793740A
- Authority
- CN
- China
- Prior art keywords
- insulator
- bearing
- fixed
- fatigue test
- steel strand
- 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.)
- Pending
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 70
- 238000009661 fatigue test Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an insulator fatigue test device, which relates to the technical field of insulators and comprises a first steel frame, a second steel frame, insulators, steel strands, a vibration device and a tensioning device, wherein the first end of each insulator rotates relative to the first steel frame, the second end of each insulator is fixed to the first end of each steel strand, the second end of each steel strand is fixed to the second steel frame, each steel strand penetrates through the vibration device and the tensioning device, and the vibration device is located between the insulators and the tensioning device. The invention can adjust the insulator load and the vibration frequency and amplitude of the steel strand according to the requirements, thereby using fatigue tests with different degrees and having wide application range.
Description
Technical Field
The invention relates to the technical field of insulators, in particular to an insulator fatigue test device.
Background
The porcelain insulator is formed by combining various materials such as ceramics, metal, cement and the like, plays a role in fixing and supporting a wire in a power transmission line, and ensures that the wire and a high-voltage wire bracket in the power transmission line have enough electrical insulation. The vibration fatigue performance of the insulator closely influences the bearing capacity and the insulation resistance of the insulator, and is related to the operation safety of a power transmission line, so that a vibration fatigue test needs to be carried out on the insulator to determine the influence rule of the vibration fatigue on the deterioration and zero-value defects of the porcelain insulator. However, the existing insulator fatigue test device is too large and complex, and the working efficiency and the adaptability are lower.
Therefore, a new insulator fatigue test device is urgently needed for solving the above problems in the power grid system.
Disclosure of Invention
The invention aims to provide an insulator fatigue test device which is used for solving the problems in the prior art and can perform fatigue tests under different loads, different amplitudes and different vibration frequencies.
In order to achieve the purpose, the invention provides the following scheme:
the invention discloses an insulator fatigue test device which comprises a first steel frame, a second steel frame, an insulator, a steel strand, a vibration device and a tensioning device, wherein the first end of the insulator rotates relative to the first steel frame, the second end of the insulator is fixed at the first end of the steel strand, the second end of the steel strand is fixed on the second steel frame, the steel strand penetrates through the vibration device and the tensioning device, and the vibration device is positioned between the insulator and the tensioning device.
Preferably, the insulator further comprises a connecting fitting, a first end of the connecting fitting is fixed to the first steel frame, and a second end of the connecting fitting is fixed to the first end of the insulator.
Preferably, the tension meter is fixed on the steel strand, and is closer to the second steel frame than the tensioning device.
Preferably, the vibrating device includes vibrating arm, bearing, spacing axle, eccentric wheel and motor, the upper end of vibrating arm has the through-hole, the steel strand wires pass the through-hole, the lower extreme of vibrating arm has the bearing groove, the bearing is located the bearing inslot, the lower extreme outer lane of bearing surpasss the lower surface of vibrating arm, the lower extreme of vibrating arm still has an axle through-hole, the axle through-hole runs through the both sides of bearing groove, spacing axle is fixed in the axle through-hole, spacing axle passes the inner circle of bearing, the bearing outer lane with the outer lane of eccentric wheel contacts, the inner circle of eccentric wheel with the output shaft of motor is fixed mutually.
Preferably, the motor further comprises a frequency converter, and the frequency converter is electrically connected with the motor.
Preferably, the shaft limiting device further comprises two limiting screws, first threaded holes are formed in two sides of the lower end of the shaft through hole, second threaded holes are formed in two sides of the limiting shaft, the first threaded holes are opposite to the second threaded holes in position, and the two limiting screws are in threaded connection with the two first threaded holes and then in threaded connection with the two second threaded holes.
Preferably, the vibration rod further comprises a rod sleeve, and the vibration rod is located in the inner ring of the rod sleeve.
Preferably, the number of the insulators is multiple, the insulators are disc-shaped insulators, and the insulators are connected end to end in sequence.
Compared with the prior art, the invention has the following technical effects:
the tensioning device and the dynamometer can adjust the load of the insulator according to actual requirements; the guide rod is driven to move up and down repeatedly by the up-and-down deviation generated in the rotation process of the eccentric wheel, the vibration amplitude is adjusted by changing the eccentric distance of the eccentric wheel, and the frequency of the input current of the motor can be adjusted by the frequency converter, so that the vibration frequency of the steel strand is controlled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an insulator fatigue test apparatus according to the present embodiment;
FIG. 2 is a schematic structural diagram of a vibration device according to the present embodiment;
in the figure: 1-a first steel frame; 2-a second steel frame; 3-connecting hardware fittings; 4, an insulator; 5-steel strand wires; 6-a vibration device; 7-a tensioning device; 8-a tension meter; 9-a vibrating rod; 10-eccentric wheel; 11-a motor; 12-a bearing; 13-a limiting shaft; 14-a rod sleeve; 15-limit screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide an insulator fatigue test device which is used for solving the problems in the prior art and can perform fatigue tests with different loads, different amplitudes and different vibration frequencies.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-2, the present embodiment provides an insulator fatigue test apparatus, which includes a first steel frame 1, a second steel frame 2, an insulator 4, a steel strand 5, a vibration device 6, and a tensioning device 7. The first end of insulator 4 and first steelframe 1 rotate relatively, and the second end of insulator 4 is fixed in the first end of steel strand wires 5, thereby vibrates about driving insulator 4 through making steel strand wires 5 vibrate from top to bottom. The second end of the steel strand 5 is fixed on the second steel frame 2, the steel strand 5 penetrates through the vibration device 6 and the tensioning device 7, the vibration device 6 is located between the insulator 4 and the tensioning device 7, the vibration device 6 enables the steel strand 5 to vibrate up and down, and the tensioning device 7 is used for controlling tensioning of the steel strand 5, so that the bearing load of the insulator 4 is controlled.
During the use, install insulator 4 that need carry out fatigue test earlier, adjust overspeed device tensioner 7 according to actual need, start vibrating device 6, vibrating device 6 drives steel strand wires 5 and carries out up-and-down reciprocating vibration to carry out the fatigue test of insulator 4.
In order to realize the rotation connection between the insulator 4 and the steel frame, the connection device further comprises a connection fitting 3 in the embodiment, the first end of the connection fitting 3 is fixed on the first steel frame 1, and the second end of the connection fitting 3 is fixed at the first end of the insulator 4. The connecting fitting 3 may be commercially available, and the size and the type of the connecting fitting 3 are selected according to the type of the insulator 4.
In order to be able to measure the load on the steel strand 5, in this embodiment a tension meter 8 is also included, which tension meter 8 is fixed to the steel strand, which tension meter 8 is closer to the second steel frame 2 than the tensioning device 7. Wherein the tensiometer 8 use on the market can purchase the tension sensor can, overspeed device tensioner 7 uses the electric power tensioning gold utensil, and electric power overspeed device tensioner is established ties by fixing-line device and double hook turn-buckle and is constituteed, adjusts overspeed device tensioner 7 through the numerical value of observing tensiometer 8 demonstration.
As for the vibration device 6, specifically, the vibration device 6 in the present embodiment includes a vibration rod 9, a bearing 12, a stopper shaft 13, an eccentric 10, and a motor 11. The vibrating rod 9 is a cylindrical rod, a through hole is formed in the upper end of the vibrating rod 9, the steel strand 5 penetrates through the through hole, and the axial direction of the through hole is perpendicular to the axial direction of the vibrating rod 9. The lower extreme of vibrating arm 9 has the bearing groove, and bearing 12 is located the bearing inslot, and the outer lane of bearing 12 surpasss the lower surface of vibrating arm 9, and the lower extreme of vibrating arm 9 still has a through-hole, and the through-hole runs through the both sides of bearing groove, and spacing axle 13 is fixed in the through-hole, and spacing axle 13 passes the inner circle of bearing 12, carries on spacingly through spacing axle 13 to bearing 12, prevents that bearing 12 from dropping out at the in-process that uses. The outer ring of the bearing 12 is in contact with the outer ring of the eccentric wheel 10, and the outer ring of the bearing 12 abuts against the outer ring of the eccentric wheel 10, so that friction can be effectively reduced, and parts are prevented from being damaged. The inner ring of the eccentric wheel 10 is fixed with the output shaft of the motor 11, and the motor 11 provides power for the eccentric wheel 10 to enable the eccentric wheel 10 to rotate. When the vibration rod is used, the motor 11 is started, the output shaft of the motor 11 drives the eccentric wheel 10 to rotate, the eccentric wheel 10 drives the vibration rod 9 to vibrate up and down when rotating, the bearing 12 is fixed relative to the vibration rod 9, and the bearing 12 abuts against the eccentric wheel 10 to avoid the problem of overlarge friction caused by the abutment of the vibration rod 9 and the eccentric wheel 10. After the vibrating rod 9 vibrates up and down, the wire hole can drive the steel strand 5 to vibrate up and down, so that the insulator 4 is driven to vibrate, and the purpose of a fatigue test is achieved.
In the fatigue test process, the vibration frequency of the steel strand 5 can be adjusted in the face of different conditions, and in the embodiment, the vibration frequency testing device further comprises a frequency converter which is electrically connected with the motor 11. The rotation rate of the motor 11 is adjusted by the frequency converter, thereby adjusting the vibration frequency of the vibration rod 9.
In order to realize the relative fixation of the limiting shaft 13, the limiting device further comprises two limiting screws 15 in the embodiment, first threaded holes are formed in two sides of the lower end of the shaft through hole, second threaded holes are formed in two sides of the limiting shaft 13, the first threaded holes are opposite to the second threaded holes in position, and the two limiting screws 15 are respectively in threaded connection with the two first threaded holes and then in threaded connection with the two second threaded holes. Therefore, the limiting shaft 13 cannot slide out in the using process, and the bearing 12 is limited.
In order to avoid the situation that the vibrating rod 9 is deviated left and right in the process of moving the vibrating rod 9 up and down, the vibrating rod 9 further comprises a rod sleeve 14 in the embodiment, the vibrating rod 9 is located at the inner ring of the rod sleeve 14, and the rod sleeve 14 can be fixed on the ground or on the first steel frame 1 and the second steel frame 2.
In this embodiment, the number of the insulators 4 is plural, the insulators 4 are disc-shaped insulators, and the plural insulators 4 are connected end to end in sequence. The number of insulators 4 and the type of insulators 4 can be adjusted by those skilled in the art according to actual needs.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. The utility model provides an insulator fatigue test device which characterized in that: including first steelframe, second steelframe, insulator, steel strand wires, vibrating device and overspeed device tensioner, the first end of insulator with first steelframe relative rotation, the second end of insulator is fixed in the first end of steel strand wires, the second end of steel strand wires is fixed in on the second steelframe, the steel strand wires pass vibrating device with overspeed device tensioner, vibrating device be located the insulator with between the overspeed device tensioner.
2. An insulator fatigue test device according to claim 1, characterized in that: the first end of the connecting fitting is fixed on the first steel frame, and the second end of the connecting fitting is fixed at the first end of the insulator.
3. An insulator fatigue test device according to claim 1, characterized in that: still include the tensiometer, the tensiometer is fixed in on the steel hank, the tensiometer than overspeed device tensioner is closer to in the second steelframe.
4. An insulator fatigue test device according to claim 1, characterized in that: the utility model discloses a vibrating device, including vibrating arm, bearing, spacing axle, eccentric wheel and motor, the upper end of vibrating arm has the through-hole, the steel strand wires pass the through-hole, the lower extreme of vibrating arm has the bearing groove, the bearing is located the bearing inslot, the lower extreme outer lane of bearing surpasss the lower surface of vibrating arm, the lower extreme of vibrating arm still has a through-hole, the through-hole of axle runs through the both sides of bearing groove, spacing axle is fixed in the through-hole of axle, spacing axle passes the inner circle of bearing, the bearing outer lane with the outer lane of eccentric wheel contacts, the inner circle of eccentric wheel with the output shaft of motor is fixed mutually.
5. The insulator fatigue testing device according to claim 4, wherein: the motor is characterized by further comprising a frequency converter, wherein the frequency converter is electrically connected with the motor.
6. The insulator fatigue testing device according to claim 4, wherein: the shaft limiting device is characterized by further comprising two limiting screws, wherein first threaded holes are formed in two sides of the lower end of the shaft through hole, second threaded holes are formed in two sides of the limiting shaft, the first threaded holes are opposite to the second threaded holes in position, and the two limiting screws are in threaded connection with the first threaded holes and then in threaded connection with the second threaded holes.
7. An insulator fatigue test device according to claim 1, characterized in that: the vibrating rod is positioned in the inner ring of the rod sleeve.
8. An insulator fatigue test device according to claim 1, characterized in that: the insulator is a plurality of, the insulator is the disk insulator, and is a plurality of the insulator connects gradually end to end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911300031.8A CN110793740A (en) | 2019-12-16 | 2019-12-16 | Insulator fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911300031.8A CN110793740A (en) | 2019-12-16 | 2019-12-16 | Insulator fatigue test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110793740A true CN110793740A (en) | 2020-02-14 |
Family
ID=69448402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911300031.8A Pending CN110793740A (en) | 2019-12-16 | 2019-12-16 | Insulator fatigue test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110793740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551332A (en) * | 2020-05-27 | 2020-08-18 | 固力发电气有限公司 | Vibration simulation detection device for overhead line |
-
2019
- 2019-12-16 CN CN201911300031.8A patent/CN110793740A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111551332A (en) * | 2020-05-27 | 2020-08-18 | 固力发电气有限公司 | Vibration simulation detection device for overhead line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105910780B (en) | A kind of rotary magnetic field fatigue exciting of the non-contact test specimen of controllable precise and vibration detecting device | |
| CN108225938A (en) | A kind of bending test apparatus and bending test method | |
| CN102661839B (en) | Overhead conductor micro vibration simulation experiment | |
| CN102866066B (en) | Rotating bending fatigue test device and method with axial load control function | |
| CN107655770A (en) | A kind of electric wire reverses stretching testing machine | |
| CN109975115B (en) | Device and method for detecting multi-wire spiral contact inside steel wire rope | |
| CN101587008A (en) | Vibration enhancing device of electric vibration table | |
| KR101762505B1 (en) | Apparatus for cable inspection | |
| CN110793740A (en) | Insulator fatigue test device | |
| CN104359671B (en) | Testing device for ball eye flexural vibration fatigue characteristic in power transmission line | |
| CN102564717B (en) | Based on aerial condutor galloping test device and the test method of the excitation of shelves end movement | |
| CN102607786A (en) | Galloping test machine power loading device for transmission tower tension change research | |
| CN211085609U (en) | Insulator fatigue test device | |
| CN106596015A (en) | Testing device and testing method for testing hardware vibration fatigue of power transmission line | |
| CN106840932A (en) | One kind is used for measure traverse line fretting wear experimental bench | |
| CN204255992U (en) | The proving installation of AC servomotor back-emf | |
| CN202362199U (en) | Component fatigue strength testing device | |
| CN207114301U (en) | A kind of beam type fatigue experimental device | |
| CN110044745B (en) | Fatigue testing machine capable of applying complex coupling acting force and control circuit thereof | |
| US9236740B2 (en) | Method and apparatus for removal of harmonic noise | |
| CN112284660A (en) | Bent torsion composite load test device of bent axle | |
| CN204389149U (en) | For the proving installation of ball-eye flexural vibrations fatigue properties in transmission line of electricity | |
| CN103712761A (en) | Multifunctional vibration test platform | |
| CN109406083A (en) | A kind of overhanging golden tool string wind excited vibration Wearing Simulated Test platform | |
| CN218725137U (en) | Fatigue vibration testing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |