CN109443680A - A kind of transmission pressure deices vibration-testing apparatus and test method - Google Patents
A kind of transmission pressure deices vibration-testing apparatus and test method Download PDFInfo
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- CN109443680A CN109443680A CN201811482580.7A CN201811482580A CN109443680A CN 109443680 A CN109443680 A CN 109443680A CN 201811482580 A CN201811482580 A CN 201811482580A CN 109443680 A CN109443680 A CN 109443680A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 84
- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000010998 test method Methods 0.000 title claims abstract description 5
- 239000000725 suspension Substances 0.000 claims abstract description 24
- 230000005611 electricity Effects 0.000 claims abstract description 20
- 230000004044 response Effects 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 239000013589 supplement Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- 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
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of transmission pressures to deice vibration-testing apparatus and test method.Test device of the invention includes two rigid frames for being used to support transmission pressure, adjustable two Vertical Springs in installation horizontal direction position and adjustable two horizontal springs of vertical height in each rigid frame；One end of the Vertical Spring is connected with the crossbeam of rigid frame, and the other end is connected with the horizontal suspension bar for being located at rigid frame centre；One end of the horizontal spring is connected with the column of rigid frame, and the other end is connected with horizontal suspension bar, and the horizontal suspension bar connects a circular end plate by connector, and the circular end plate with the end of transmission pressure for being fixedly connected.Test device of the invention is easy for assembly, it is mobile flexible, it can be placed under true ice and snow environment and be tested, vibratory response of the more division ice coating wires of different frequency characteristic when really deicing can be simulated, deice design studies for transmission line of electricity is anti-important reference data is provided.
Description
Technical field
The present invention relates to the anti-testing fields for deicing design studies of icing ultra-high-tension power transmission line, and especially a kind of move can
The transmission pressure of dismounting deices vibration-testing apparatus and test method.
Background technique
The conducting wire of transmission line of electricity have the characteristics that it is soft, greatly across belonging to the structure more sensitive to ice load.China is defeated
More serious one of the country of electric line ice damage.Serious frost sleet disaster has occurred in south China drug in some provinces in 2008,
Extremely serious destruction is caused to power grid, causes weight huge economic loss.From the failure system of transmission line of electricity under a large amount of ice damages
From the point of view of meter analysis, other than ice and snow load increases the self weight of conducting wire and tower, icing transmission line of electricity is deicing the big of stage generation
The vertical bouncing vibration of width and resulting Imbalance in weight tension, and the important original for causing wire-break even shaft tower to destroy
Cause.It can be seen that the dynamic response and load effect when correct understanding and assessment icing transmission of electricity deice are to ensure that transmission line of electricity supports
The importance of anti-ice calamity effect.It is costly since the monitoring of true type transmission line of electricity is there are the period is long, and climate environmental disturbances are aobvious
The problems such as work, therefore, it is difficult to quickly deice design for current conducting wire is anti-and provide authentic data.And other existing numerical simulation skills
Art be based on artificially assume deice mode to calculate conducting wire dynamic response, thus be difficult to reflect response when conducting wire really deices
State.
In order to solve the deficiency of the studies above method, it is necessary to research and develop and a kind of facilitate adjustable, Yi Yidong and can be suitably used for multiple
The experimental rig of miscellaneous site environment, to explore vibratory response when conducting wire really deices.But at present there has been no a kind of test device,
Not only the frequency characteristic on true molded line road can have been simulated, but also can reflect the power behavior that ice coating wire under true environment deices.
Summary of the invention
The present invention is intended to provide one kind is easy to loading and unloading, movement flexibly, suitable for self-vibration characteristics different under all kinds of environment is transmitted electricity
The position for deicing vibration-testing apparatus, can obtaining when true ice coating wire deices of route and different division number transmission pressures
The dynamic responses such as shifting and acceleration provide foundation to resist for transmission line of electricity and deice design.
For this purpose, the present invention adopts the following technical scheme that: one kind moving removable transmission pressure and deices vibration-testing
Device is used to support the rigid frame of transmission pressure including two,
Adjustable two Vertical Springs in installation horizontal direction position and adjustable two levels of vertical height in each rigid frame
Spring；One end of the Vertical Spring is connected with the crossbeam of rigid frame, the other end and the level for being located at rigid frame centre
Suspending rod is connected；One end of the horizontal spring is connected with the column of rigid frame, and the other end is connected with horizontal suspension bar, described
Horizontal suspension bar one circular end plate is connected by connector, the circular end plate with the end of transmission pressure for being fixedly connected；
The both side surface of the rigid frame is closed using transparent panel, the side transparent panel for being connected with transmission pressure
It is provided with intercommunicating pore.
Transmission pressure is connected by the present invention by circular end plate and horizontal suspension bar with horizontal spring and Vertical Spring, can
To simulate the self-vibration characteristic of various transmission lines of electricity, and conducting wire is used to along horizontal, vertical translation and around itself
Property axis is freely rotated.
Supplement as above-mentioned technical proposal, the rigid frame is made of two root posts and two crossbeams, using list
Slot aluminium is welded.
The bottom of supplement as above-mentioned technical proposal, the rigid frame connects two height-adjustable support columns, institute
State the one slidably fixable bottom support bracket of bottom connection of support column.
Supplement as above-mentioned technical proposal, on the bottom support bracket equipped with 4 can 360 ° of rotations wheels, facilitate survey
The movement that trial assembly is set；4 wheels are mounted on brake gear, for fixing whole device.
Supplement as above-mentioned technical proposal, the support column use the structure of internal and external casing, the inside and outside casing
The scale of height is indicated in the position aperture of tube wall different height, and in position with pores, by the opposite sliding of internal and external casing, and
The mode of internal and external casing is fixed by bolts to realize the change of rigid frame height, and then the test for adjusting transmission pressure is high
Degree.
Supplement as above-mentioned technical proposal, the material of the transparent panel are transparent organic glass, by bolt and are glued
Gum deposit is connected with rigid frame；It is connected by screw bolts between the support column and rigid frame, facilitates the transfer of test device
And on-site assembly.
Supplement as above-mentioned technical proposal, the upper and lower crossbeam and left and right column are mounted on can stepless sliding
Ring-bolt, the horizontal spring are connected by ring-bolt with the column of rigid frame, horizontal spring can be made along vertical
Carry out height adjustment；The Vertical Spring is connected by ring-bolt with the crossbeam of rigid frame, can make Vertical Spring along
Horizontal direction carries out position adjusting.
Supplement as above-mentioned technical proposal indicates several significant mark points on the horizontal suspension cross bar, as
The observation point of transmission pressure dynamic response contactless remote monitor device when testing.
Supplement as above-mentioned technical proposal, 0-360 ° is indicated in the circular end plate and with 5 ° of scales for interval,
Reference as the adjustment transmission pressure wind angle of attack.
Deice what vibration-testing apparatus was tested using above-mentioned transmission pressure it is a further object of the present invention to provide a kind of
Method, its step are as follows:
First according to the specification of the size of transmission pressure, division number selection transmission pressure and circular end plate, then according to power transmission line
The rigidity of the self-vibration characteristic initial option spring on road, the spacing between spring hitch point determine horizontal spring and Vertical Spring
The position of specification and ring-bolt；The height that support column is adjusted according to transmission pressure suspension height, then fills integrated testability
Setting to be moved to needs in environment to be tested and fixes；
Transmission pressure is installed, the wind angle of attack blending bolt that circular end plate goes to true conducting wire is connected with connector；Setting is long-range
Monitoring collection equipment, the dynamic respond time-histories of target measuring point in level monitoring suspending rod；After device is installed, transmission pressure is given
Apply initial impact force and carry out preliminary vibration-testing, examine transmission pressure self-vibration characteristic whether with practical transmission line of electricity one
It causes；When there are when deviation, increase counterweight mode by adjusting spring rate, position or on horizontal suspension bar to test for the two
Vertical, the horizontal and torsion natural frequency of vibration of conducting wire is adjusted to consistent with practical transmission line of electricity.
The invention has the advantages that: test device of the invention is easy for assembly, mobile flexible, can be placed in true
It is tested under real ice and snow environment, more division ice coating wires of different frequency characteristic can be simulated when really deicing
Vibratory response deices design studies and provides important reference data for transmission line of electricity is anti-.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is top view of the invention；
Fig. 3 is the connection schematic diagram of horizontal suspension bar and circular end plate of the present invention；
Fig. 4 is schematic diagram when test device of the present invention is tested；
In figure, 1- transmission pressure, 2- connector, 3- circular end plate, 4- intercommunicating pore, 5- horizontal suspension bar, 6- horizontal spring, 7- is perpendicular
To spring, 8- ring-bolt, 9- left column, 10- upper beam, 11- right column, 12- lower beam, 13- outer tube, 14- inner sleeve,
15- bottom support bracket, 16- transparent panel, 17- end plate, 18- perforating.
Specific embodiment
Below with reference to embodiment and Figure of description, invention is further explained, but protection scope of the present invention
It is not limited to following embodiments.Within the spirit of the invention and the scope of protection of the claims, any modification present invention made
And change, both fall within protection scope of the present invention.
Embodiment 1
As shown in Figure 1-3, one kind, which moves removable transmission pressure, deices vibration-testing apparatus, comprising: more division transmissions of electricity are led
The rigid frame that line 1, left and right pillar 9,11 and lower and upper cross-member 10,12 form, the support being made of outer tube 13 and inner sleeve 14
Column, and moveable bottom support bracket 15.The both side surface of the rigid frame is mounted on transparent panel 16, wherein with transmission of electricity
The transparent panel that conducting wire 1 connects is equipped with intercommunicating pore 4, and 4 vertical and levels are equipped between the upper and lower crossbeam 10,12
Vertical Spring 7 adjustable in pitch, the rigidity for changing Vertical Spring 7 can be used to adjust the vertical natural frequency of vibration of transmission pressure 1, and
Change the torsion natural frequency of vibration of the adjustable transmission pressure 1 of spacing of Vertical Spring 7.The Vertical Spring 7 and horizontal suspension
Bar 5 is connected, and the transmission pressure 1 is connected with circular end plate 3, and the circular end plate 3 passes through with horizontal suspension bar 5 and connect
Part 2 is connected, and 2 horizontal springs 6, described 6 one end of horizontal spring and horizontal suspension are equipped between the left and right column 9,11
Bar 5 is connected, and the other end is connected by ring-bolt 8 with column, allows the free translation in the horizontal direction of transmission pressure 1, changes
The rigidity for becoming horizontal spring 6 can be used to adjust the horizontal natural frequency of vibration of transmission pressure 1.Lead between the inner and outer pipes of the support column
It crosses the punch mode of blending bolt connection of tube wall to be connected, passes through the height of the adjustable test device of sliding between inner and outer pipes.
The bottom support bracket 15 is equipped with 4 wheels that can slidably brake, with the movement and fixation of realization device.The present embodiment
In, all Vertical Springs 7 are must assure that after installation is complete perpendicular to upper beam 10 and lower beam 12, horizontal spring 6 and level
The horizontal median axis of suspending rod 5 must assure that in the same horizontal line the initial position of transmission pressure 1 is located at intercommunicating pore 4 as far as possible
Center.
The horizontal gird 10,12 and vertical upright column 9,11 of rigid frame described in the present embodiment are mounted on and stepless can slide
Ring-bolt 8, can be realized by its elastic top nut along the stepless sliding of beam slot and fixation, the horizontal spring 6 and perpendicular
Having hook to the end of spring 7 can be connected with bolt.
One end that connector 2 is connected with horizontal suspension bar 5 described in the present embodiment be rectangular strip, and with circular end plate 3
It is connected one end for disc-shape.Two end plates 17 of the connector 2 pass through bolt and 3 phase of horizontal suspension bar 5 and circular end plate
Connection.
Horizontal suspension bar 5 described in the present embodiment is equipped with the perforating connected for Vertical Spring 7 and horizontal spring 6
18, allow transmission pressure 1 along horizontal and vertical direction free movement.
Multiple label monitoring points remotely monitored, the circle are provided on horizontal suspension bar 5 described in the present embodiment
Each 5 ° of draftings have graduation mark on end plate 3, facilitate when adjusting the conducting wire test wind angle of attack with reference to (not shown).
Horizontal shelf is welded at the top of the outer tube 13 of support column described in the present embodiment, prepared screw-bolt hole on plate is described
The also prepared screw-bolt hole of rigid frame bottom lower beam 12, and connected by the outer tube 13 of bolt and support column, to facilitate device
Dismounting and transfer.Pass through welded connecting between the inner sleeve 14 of the bottom support bracket 15 and support column.
Embodiment 2
Deice what vibration-testing apparatus was tested using transmission pressure described in above-described embodiment 1 the present embodiment provides a kind of
Method, as shown in figure 4, its step are as follows:
The specification for selecting transmission pressure 1 and circular end plate 3 according to the size of transmission pressure, division number etc. first, then according to defeated
The rigidity of the self-vibration characteristic initial option spring of electric line, the spacing between spring hitch point, determines horizontal spring 6 and vertical bullet
The specification of spring 7 and the position of ring-bolt 8；The height that support column is adjusted according to transmission pressure suspension height, then will be whole
Test device, which is moved to, to need in environment to be tested and fixes；
Transmission pressure 1 is installed, the wind angle of attack blending bolt that circular end plate 3 goes to true conducting wire is connected with connector 2；Setting is remote
Range monitoring acquires equipment, the dynamic respond time-histories of target measuring point in level monitoring suspending rod；After device is installed, led to transmission of electricity
Line applies initial impact force and carries out preliminary vibration-testing, examine transmission pressure self-vibration characteristic whether with practical transmission line of electricity
Unanimously；When the two is there are when deviation, the modes such as increase counterweight will by adjusting spring rate, position or on horizontal suspension bar
Vertical, the horizontal and torsion natural frequency of vibration of test lead is adjusted to consistent with practical transmission line of electricity.
In view of there is multistage mode of motion on the three degree of freedom direction in practical transmission line wire, so
A kind of primary modal combination is only selected to be tested in test every time.When carry out scene deices vibration measuring test, bare conductor is selected
Fortune to observe the process that deices of ice coating wire in true ice and snow environment, and during being deiced with long-distance monitorng device record conducting wire
Dynamic rail mark and response time-histories.When simulation deices test in laboratory, electromagnetism is installed along its length on transmission pressure surface
Iron remotely control with simulation ice-coating quality, by the time relay electromagnet fall the time and sequence simulates transmission pressure
Deice situation.
Claims (10)
1. a kind of transmission pressure deices vibration-testing apparatus, the rigid frame of transmission pressure, feature are used to support including two
It is,
Adjustable two Vertical Springs in installation horizontal direction position and adjustable two levels of vertical height in each rigid frame
Spring；One end of the Vertical Spring is connected with the crossbeam of rigid frame, the other end and the level for being located at rigid frame centre
Suspending rod is connected；One end of the horizontal spring is connected with the column of rigid frame, and the other end is connected with horizontal suspension bar, described
Horizontal suspension bar one circular end plate is connected by connector, the circular end plate with the end of transmission pressure for being fixedly connected；
The both side surface of the rigid frame is closed using transparent panel, the side transparent panel for being connected with transmission pressure
It is provided with intercommunicating pore.
2. transmission pressure according to claim 1 deices vibration-testing apparatus, which is characterized in that the rigid frame by
Two root posts and two crossbeam compositions, are welded using single slot aluminium.
3. transmission pressure according to claim 1 or 2 deices vibration-testing apparatus, which is characterized in that the rigid frame
Bottom connect two height-adjustable support columns, the one slidably fixable bottom support bracket of bottom connection of the support column.
4. transmission pressure according to claim 3 deices vibration-testing apparatus, which is characterized in that on the bottom support bracket
Equipped with 4 can 360 ° rotation wheels, facilitate the movement of test device；4 wheels are mounted on brake gear, are used for
Fixed whole device.
5. transmission pressure according to claim 3 deices vibration-testing apparatus, which is characterized in that the support column uses
The structure of internal and external casing, the inside and outside casing indicate height in the position aperture of tube wall different height, and in position with pores
Scale by the opposite sliding of internal and external casing, and is fixed by bolts the mode of internal and external casing to realize rigid frame height
Change, and then adjusts the test height of transmission pressure.
6. transmission pressure according to claim 1 or 2 deices vibration-testing apparatus, which is characterized in that the transparent panel
Material be transparent organic glass, be connected by bolt and adhesive glue with rigid frame；The support column and rigid frame it
Between be connected by screw bolts.
7. transmission pressure according to claim 1 or 2 deices vibration-testing apparatus, which is characterized in that the upper, lower horizontal
Beam and left and right column be mounted on can stepless sliding ring-bolt, the horizontal spring pass through ring-bolt and rigid frame
The column of frame is connected, and horizontal spring can be made to carry out height adjustment along vertical；The Vertical Spring is by ring-bolt and just
Property frame crossbeam be connected, can make Vertical Spring along horizontal direction carry out position adjusting.
8. transmission pressure according to claim 1 or 2 deices vibration-testing apparatus, which is characterized in that the level is outstanding
It hangs and indicates several significant mark points on cross bar, contactless remote monitor device when as the test of transmission pressure dynamic response
Observation point.
9. transmission pressure according to claim 1 or 2 deices vibration-testing apparatus, which is characterized in that the round nose
0-360 ° and the reference with 5 ° of scales for interval, as the adjustment transmission pressure wind angle of attack are indicated on plate.
10. deicing the test method of vibration-testing apparatus using any one of the claim 1-9 transmission pressure, feature exists
In steps are as follows:
First according to the specification of the size of transmission pressure, division number selection transmission pressure and circular end plate, then according to power transmission line
The rigidity of the self-vibration characteristic initial option spring on road, the spacing between spring hitch point determine horizontal spring and Vertical Spring
The position of specification and ring-bolt；The height that support column is adjusted according to transmission pressure suspension height, then fills integrated testability
Setting to be moved to needs in environment to be tested and fixes；
Transmission pressure is installed, the wind angle of attack blending bolt that circular end plate goes to true conducting wire is connected with connector；Setting is long-range
Monitoring collection equipment, the dynamic respond time-histories of target measuring point in level monitoring suspending rod；After device is installed, transmission pressure is given
Apply initial impact force and carry out preliminary vibration-testing, examine transmission pressure self-vibration characteristic whether with practical transmission line of electricity one
It causes；When there are when deviation, increase counterweight mode by adjusting spring rate, position or on horizontal suspension bar to test for the two
Vertical, the horizontal and torsion natural frequency of vibration of conducting wire is adjusted to consistent with practical transmission line of electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482580.7A CN109443680A (en) | 2018-12-05 | 2018-12-05 | A kind of transmission pressure deices vibration-testing apparatus and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482580.7A CN109443680A (en) | 2018-12-05 | 2018-12-05 | A kind of transmission pressure deices vibration-testing apparatus and test method |
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| CN109443680A true CN109443680A (en) | 2019-03-08 |
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Cited By (2)
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| CN110595989A (en) * | 2019-08-30 | 2019-12-20 | 国网福建省电力有限公司电力科学研究院 | Cable damage test platform and method for manually simulating strong wind and coastal environment |
| CN112710444A (en) * | 2019-12-26 | 2021-04-27 | 浙江大学 | Spring suspension section model device and test method |
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