CN106052996A - Extra high voltage DC composite wall bushing anti-vibration test device and test method - Google Patents
Extra high voltage DC composite wall bushing anti-vibration test device and test method Download PDFInfo
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- CN106052996A CN106052996A CN201610553283.1A CN201610553283A CN106052996A CN 106052996 A CN106052996 A CN 106052996A CN 201610553283 A CN201610553283 A CN 201610553283A CN 106052996 A CN106052996 A CN 106052996A
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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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Abstract
The invention discloses an extra high voltage DC composite wall bushing anti-vibration test device and a test method. The test device comprises an acceleration measurer, a support, a mounting board arranged on the support and a vibration stand arranged below the support, wherein the support is provided with a supporting beam used for supporting the mounting board, the mounting board is provided with a mounting hole, the mounting board is obliquely arranged, the acceleration measurer comprises a first acceleration meter arranged on the vibration stand, a second acceleration meter arranged on the supporting beam, a third acceleration meter arranged at an outer surface of a wall bushing, and a fourth acceleration meter, the third acceleration meter is used for measuring acceleration of the wall bushing in X, Y and Z directions, the fourth acceleration meter is used for measuring acceleration of the wall bushing in Xs and Zs directions, the third acceleration meter carries out measurement on the basis of a global coordinate system, relative motion and mutual force between the wall bushing and external equipment are convenient to determine, and the fourth acceleration meter is used for measuring acceleration of the wall bushing in axial and radial directions.
Description
Technical field
The present invention relates to wall bushing shock test technical field, especially relate to a kind of extra-high voltage direct-current and be combined set through walls
Pipe shock test device and test method.
Background technology
Along with China's project of transmitting and converting electricity develops to high pressure, supertension and extra-high voltage direction, DC converter station is equipped with big
The key equipment of amount, such as ultrahigh voltage direct current wall bushing.Wall bushing is made up of trocar sheath and the inner guide being located in trocar sheath,
Wherein trocar sheath includes the outdoor bushing outside the valve Room and the composition of the indoor bushing inside the valve Room, and inner guide includes outside the valve Room
Indoor guide rod composition inside outdoor guide rod and the valve Room, inner side and outer side, valve Room structure is linked to be an entirety by transition tank, should
Transition tank is hung by installing plate and is arranged on the body of wall of the valve Room.Under multi-component earthquake excitation, extra-high voltage direct-current is worn by valve Room body of wall
Wall sleeve has suitable power augmentation effect, and therefore ultrahigh voltage direct current wall bushing reality can be subject to more harsh geological process,
Need it is carried out strict earthquake examination, it is ensured that it is safety in earthquake.At present, the shock test dress that neither one is special is gone back
Put the anti-seismic performance of wall bushing in simulation test operating mode.
Summary of the invention
Based on this, the invention reside in the defect overcoming prior art, it is provided that a kind of extra-high voltage direct-current is combined wall bushing and resists
Shake assay device and test method, its can wall bushing under simulation test actual condition, wear under actual condition in order to determine
The anti-seismic performance of wall sleeve.
Its technical scheme is as follows:
A kind of extra-high voltage direct-current is combined wall bushing shock test device, including acceleration measurement device, support, is located at institute
Stating the installing plate on support and the vibration table being located under described bracket bottom, described support is provided with the support supporting described installing plate
Beam, described installing plate offers the installing hole passed for wall bushing, and described installing plate is obliquely installed, and described acceleration analysis fills
Put include the first accelerometer being located on described vibration table, the second accelerometer of being located in described support beam and be located at this and wear
3rd accelerometer of wall sleeve outer surface, the 4th accelerometer；
Setting X-direction and point to the direction of the other end as wall bushing in horizontal plane from one end, Y-direction is to hang down in horizontal plane
Straight in the direction of X, Z-direction is to be perpendicular to the direction on ground, described first accelerometer, described second accelerometer, described the
Three accelerometers be respectively used to measure described vibration table, described support beam and wall bushing described X-direction, described Y-direction and
The acceleration of described Z-direction；
Setting axial as wall bushing of Xs direction, Zs direction is wall bushing radial direction in perpendicular, described
Four accelerometers are for measuring wall bushing at described Xs direction and the acceleration in described Zs direction.
Wherein in an embodiment, this wall bushing includes that trocar sheath and transition tank, described trocar sheath include being positioned at
Crossing first sleeve and second sleeve pipe at tank two ends, described second sleeve pipe is in one end of described transition tank with described installing hole
Wall contacts, and described 3rd accelerometer and described 4th accelerometer are multiple, and described first sleeve is away from described transition
One end of tank, described second sleeve pipe away from one end of described transition tank and described second sleeve pipe near one end of described transition tank
It is equipped with described 3rd accelerometer and described 4th accelerometer.
Wherein in an embodiment, described acceleration measurement device also includes the 5th accelerometer, and the described 5th accelerates
Degree meter is for measuring wall bushing in described Xs direction, Zs direction and the acceleration of Y-direction, the center of gravity of described first sleeve, institute
State first sleeve and be equipped with described 5th accelerometer near the center of gravity of one end of described transition tank and described second sleeve pipe.
Wherein in an embodiment, being provided with inner guide in this wall bushing, described acceleration measurement device also includes
Six accelerometers, described 6th accelerometer for measuring wall bushing at described Zs direction and the acceleration of Y-direction, described in wear
The outer surface of wall sleeve and the outer surface of described inner guide are equipped with described 6th accelerometer, are located at outside described wall bushing
6th accelerometer on surface is positioned at the same of this wall bushing with the 6th accelerometer of the outer surface being located at described inner guide
In cross section.
Wherein in an embodiment, described inner guide includes that the first guide rod and second being located at described transition tank two ends is led
Bar, it is characterised in that the center of gravity of described first guide rod and the center of gravity of described second guide rod are equipped with described 6th acceleration
Meter.
Wherein in an embodiment, also include that displacement measuring device, institute's displacement measurement device shake described in including being located at
The first displacement meter, the second displacement meter being located in described support beam and the triple motion being located at wall bushing outer surface on dynamic platform
Meter, described first displacement meter, described second displacement meter and the score of described triple motion not in order to measure described vibration table, described
Support beam and wall bushing are in described X-direction, described Y-direction and the displacement of described Z-direction.
Wherein in an embodiment, described triple motion is calculated as at least two, and two described triple motions are respectively arranged on
Described first sleeve is away from crossing one end of tank and described second sleeve pipe described in excessively away from the one end crossing tank described in excessively.
Wherein in an embodiment, also include that strain gauge means, described strain gauge means include being located at set through walls
First strain gauge of tube outer surface and the second strain gauge being located on described inner guide.
Wherein in an embodiment, also include that controller, described vibration table and described acceleration measurement device are all and institute
State controller to be electrically connected with.
The technical program additionally provides a kind of extra-high voltage direct-current and is combined wall bushing shock test method, including following step
Rapid:
Being installed on a mounting board by wall bushing, this installing plate is located in the support beam of support；
Table top at vibration table arranges the first accelerometer, arranges the second accelerometer, at wall bushing in support beam
Outer surface arranges the 3rd accelerometer and the 4th accelerometer；
Vibration on Start-up platform；
First accelerometer gathers the accekeration of vibration table, and the second accelerometer gathers the accekeration of support beam, the
Three accelerometers and the 4th accelerometer gather the accekeration of wall bushing；
It is analyzed institute's measuring acceleration value processing, in order to determine the anti-seismic performance of this wall bushing.
Advantage or principle to preceding solution illustrate below:
The invention provides a kind of extra-high voltage direct-current and be combined wall bushing shock test device, it includes that acceleration analysis fills
Put, installing plate, support and vibration table, the wall bushing of test is fixed on support by installing plate.Support of the present invention
May be designed as and quality, the equal strength such as actual valve Room body of wall, in order to simulate real valve Room body of wall, be provided with below support simultaneously and shake
Dynamic platform, vibration table is in order to export seismic wave, and when Vibration on Start-up platform, support is amplified and is transferred to set through walls to vibration power
Pipe, thus the present invention goes to be simulated the wall bushing under actual condition on the whole, it can pass through acceleration measurement device
Test wall bushing anti-seismic performance under the power augmentation effect of valve Room body of wall.Specifically, the first accelerometer is used for surveying
Determine the seismic stimulation of the actual output of vibration table surface；The acceleration of test sample is amplified by the second accelerometer for measuring support
Effect, that is to say the actual seismic stimulation being subject to of wall bushing test specimen, owing to wall bushing is to be installed on by installing plate
In support beam, by measuring the acceleration induction value in support beam, the seismic stimulation reaching wall bushing can be directly obtained；The
Three accelerometers and the 4th accelerometer are i.e. for measuring wall bushing acceleration responsive in test.By to vibration table,
In support beam and the accekeration of wall bushing outer surface is analyzed calculating, so that it is determined that wall bushing anti-under actual condition
Shock stability.It addition, the first accelerometer of the present invention, the second accelerometer and the 3rd accelerometer are three-dimensional acceleration
Meter, it measures direction is all conventional global coordinate system based on ground.When the 3rd accelerometer at test wall bushing three
During the seismic stimulation of dimension space, can according to the test result of the first accelerometer and the second accelerometer judge wall bushing with
Relative motion between external device and interaction force；4th accelerometer is two to accelerometer simultaneously, wears for measurement
Wall sleeve, from acceleration axially and radially, uses the 3rd accelerometer and the 4th accelerometer to monitor set through walls simultaneously
The seismic stimulation of pipe, can reach the anti-seismic performance to wall bushing and carry out the effect of conduct monitoring at all levels.In summary, the present invention
Proposing a kind of extra-high voltage direct-current and be combined wall bushing shock test device and test method, it can simulation test actual condition
Under wall bushing, in order to determine the anti-seismic performance of wall bushing under actual condition, there is bigger practicality and the suitability.
Owing to first sleeve is intended to and external device away from one end of transition tank away from one end of transition tank and the second sleeve pipe
(grading ring) is attached, and the second sleeve pipe is to be held on installing plate near one end of transition tank, with the inwall of installing hole
Contact, in order to monitor the interaction between wall bushing self and external device, need to be arranged at the 3rd accelerometer
The above-mentioned position of wall bushing is installed.The most above-mentioned position is also the antidetonation weak link of wall bushing, arranges the 4th herein
Accelerometer may be used for surveying the acceleration responsive of wall bushing self.
Acceleration measurement device of the present invention also includes the 5th accelerometer, in order to measure wall bushing outer surface its
The seismic stimulation of his antidetonation weak link, the measurement direction of the 5th accelerometer is three-dimensional based on sleeve pipe itself,
In order to judge that sleeve pipe is in axial, radial direction and horizontal motion.
Acceleration measurement device of the present invention also includes the 6th accelerometer, the outer surface of described wall bushing and institute
The outer surface stating inner guide is equipped with described 6th accelerometer, and two the 6th accelerometers are integrated after recording accekeration
Calculate the moving displacement of trocar sheath and inner guide, thus calculate outer phase para-position between the two according to both displacements
Move, and then judge that wall bushing has collisionless, the air gap deficiency to cause problems such as puncturing in earthquake.
Described 6th accelerometer is two to accelerometer, is respectively used to measure wall bushing in described Zs direction and Y side
To acceleration.Owing to the setting of the 6th acceleration is mainly in order to judge whether there is collision etc. between trocar sheath and inner guide
Situation, mainly considers trocar sheath and the radial displacement of inner guide, thus only needs to measure its Zs and Y-direction, need not survey
Measure it axially (Xs direction), thus save testing cost.Simultaneously because the acceleration in Xs direction is very under actual vibrational state
Little, it is difficult to detect, thus the 6th accelerometer arranged in inner guide center of gravity all eliminates the test in Xs direction, thus subtract
Few testing cost and installation difficulty.
Present invention additionally comprises displacement measuring device, institute's displacement measurement device is for vibration table, support beam and set through walls
Tube outer surface carries out displacement measurement.By installing acceleration measurement device and displacement measuring device on this assay device, permissible
Wall bushing acceleration under seismic stimulation and displacement are measured, utilizes acceleration and displacement relation, can mutually check
Result of the test, it is ensured that the reliability of sensor measurement.Simultaneously as the root of first sleeve and the second sleeve pipe is (the most close
One end of transition tank) the least in the skew of X-direction, thus two the 4th displacement meters to test are only needed in this position.
Present invention additionally comprises strain gauge means, this strain gauge means includes that be located at wall bushing outer surface first should
Become meter and be located at the second strain gauge of inner guide outer surface, in order to assess strain and the deformation of trocar sheath and inner guide, from
And determine the shock strength of test sample.
Owing to place tank connected with transition on wall bushing is the link that antidetonation is the weakest, in first sleeve near transition
One end and second sleeve pipe of tank arrange the first strain gauge near one end of transition tank, the first guide rod near one end of transition tank with
And second guide rod arrange the second strain gauge near one end of transition tank, both can reach the effect of test strain, can save again
Testing cost.
Present invention additionally comprises controller, control vibration table by controller and start and acceleration measurement device measurement, simultaneously
It is analyzed surveyed data calculating, and then can realize whole test device is automatically controlled and calculated.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wall bushing described in the embodiment of the present invention；
Fig. 2 is the structural representation that the extra-high voltage direct-current described in the embodiment of the present invention is combined wall bushing shock test device
Figure；
Fig. 3 be support described in the embodiment of the present invention with installing plate laterally assemble schematic diagram；
Fig. 4 is the layout schematic diagram of the acceleration measurement device described in the embodiment of the present invention；
Fig. 5 is the layout schematic diagram of the accelerometer on the installing plate described in the embodiment of the present invention；
Fig. 6 is the layout schematic diagram of the displacement measuring device described in the embodiment of the present invention；
Fig. 7 is the layout schematic diagram of the displacement meter on the installing plate described in the embodiment of the present invention；
Fig. 8 is the layout schematic diagram of the strain gauge means described in the embodiment of the present invention；
Fig. 9 (a) is the layout schematic diagram of the single strain rosette described in the embodiment of the present invention；Fig. 9 (b) is the embodiment of the present invention
The layout schematic diagram of 4 strain rosettes on described trocar sheath；
Figure 10 (a) is the layout schematic diagram of the single foil gauge described in the embodiment of the present invention；Figure 10 (b) is that the present invention implements
The layout schematic diagram of 4 foil gauges on inner guide described in example.
Description of reference numerals:
100, wall bushing, 110, trocar sheath, 111, first sleeve, the 112, second sleeve pipe, 120, inner guide, 121, first
Guide rod, the 122, second guide rod, 130, transition tank, 200, vibration table, 210, table top, 300, support, 310, support beam, 400, install
Plate, 410, installing hole.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and specific embodiment party
Formula, is described in further detail the present invention.It should be appreciated that detailed description of the invention described herein is only in order to solve
Release the present invention, do not limit protection scope of the present invention.
As it is shown in figure 1, wall bushing 100 is made up of trocar sheath 110 and inner guide 120, wherein, trocar sheath 110 includes
Sleeve 111 and the second sleeve pipe 112, inner guide 120 includes the first guide rod 121 and the second guide rod 122, first sleeve 111 and
Two sleeve pipes 112 centres and the first guide rod 121 and the middle transition tank 130 that passes through of the second guide rod 122 are linked to be an entirety.Such as Fig. 2
Shown in Fig. 3, extra-high voltage direct-current of the present invention is combined wall bushing shock test device, and it includes that acceleration analysis fills
Put, support 300, the installing plate 400 being located on support 300 and be located at the vibration table 200 under described support 300.Described support
300 are provided with the support beam 310 for supporting described installing plate 400, and described installing plate 400 offers to be worn for wall bushing 100
The installing hole 410 crossed.Specifically, the connecting plate of transition tank 130 side is oppositely arranged with installing plate 400, and is bolted
Together so that the second sleeve pipe passes in installing hole, and the outer wall of the second sleeve pipe contacts with the inwall of installing hole.Of the present invention
Installing plate 400 be obliquely installed, its angle with vertical direction is about 10 degree so that test sample tiltable is installed on support
On 300, it is used for simulating tilted-putted wall bushing 100 under actual condition.Support 300 of the present invention may be designed as with real
Quality, the equal strength such as the valve Room, border body of wall, in order to simulate reality valve Room body of wall, simultaneously the vibration table 200 below support 300 in order to
Output seismic wave, when Vibration on Start-up platform 200, support 300 is amplified and is transferred to wall bushing 100 to vibration power, because of
And the present invention goes to be simulated the wall bushing 100 under actual condition on the whole, it can be come by acceleration measurement device
The test wall bushing 100 anti-seismic performance under the power augmentation effect of valve Room body of wall.
Specifically, as shown in Figure 4, described acceleration measurement device includes the table top 210 being respectively arranged on described vibration table 200
The first accelerometer A1, second accelerometer of the junction of installing plate 400 (support beam 310 with) in described support beam 310
A2 and the 3rd accelerometer A3 and the 4th accelerometer A4 of wall bushing 100 outer surface.First accelerometer A1 is used for measuring
The seismic stimulation of the actual output of vibration table 200 table top 210, the second accelerometer A2 is for measuring support 300 to test sample
Acceleration amplification, that is to say the actual seismic stimulation being subject to of wall bushing 100 test specimen, the 3rd accelerometer A3 and
Four accelerometer A4 are i.e. for measuring sleeve pipe acceleration responsive in test.By to vibration table 200, support beam 310 with wear
The accekeration of wall sleeve 100 outer surface is analyzed calculating, so that it is determined that the shock resistance of wall bushing 100 under actual condition
Energy.
Setting X-direction and point to the direction of the other end as wall bushing in horizontal plane from one end, Y-direction is to hang down in horizontal plane
Straight in the direction of X, Z-direction is that to be perpendicular to the direction on ground, i.e. X, Y, Z be global coordinate system；Set Xs direction as wall bushing
Axial, Zs direction is wall bushing radial direction in perpendicular.
Described first accelerometer A1, described second accelerometer A2, described 3rd accelerometer A3 are respectively used to measure
Described vibration table 200, described support beam 310 and wall bushing 100 add described X-direction, described Y-direction and described Z-direction
Speed；Described 4th accelerometer A4 is for measuring wall bushing at described Xs direction and the acceleration in described Zs direction.When
Three accelerometer A3, can be according to the first accelerometer A1 and the when testing wall bushing 100 at three-dimensional seismic stimulation
The test result of two accelerometer A2 judges the relative motion between wall bushing 100 and external device and interaction force；
4th accelerometer A4 is two to accelerometer simultaneously, for measuring wall bushing 100 from acceleration axially and radially.
Use the 3rd accelerometer A3 and the 4th accelerometer A4 to monitor the seismic stimulation of wall bushing simultaneously, can reach through walls
The anti-seismic performance of sleeve pipe carries out the effect of conduct monitoring at all levels.In summary, the present invention proposes that a kind of extra-high voltage direct-current is compound to be worn
Wall sleeve shock test device and test method, its can wall bushing under simulation test actual condition, in order to determine reality
The anti-seismic performance of wall bushing under operating mode, has bigger practicality and the suitability.
In the present embodiment, the 3rd accelerometer A3 and the 4th accelerometer A4 is multiple, and it is located at described the most simultaneously
Sleeve 111 away from one end of described transition tank 130, described second sleeve pipe 112 away from one end of described transition tank 130 and institute
State the second sleeve pipe 112 one end near described transition tank 130.Owing to first sleeve 111 is away from one end and second of transition tank 113
Sleeve pipe 112 is intended to be attached with external device (grading ring) away from one end of transition tank 111, and the second sleeve pipe 112 is close
One end of transition tank 113 is to be held on installing plate, contacts with the inwall of installing hole, in order to monitor wall bushing 100 self
And the interaction between external device, needs the above-mentioned position that the 3rd accelerometer A3 is arranged at wall bushing 100 to install.
The most above-mentioned position is also the antidetonation weak link of wall bushing 100, arranges the 4th accelerometer A4 herein and may be used for surveying
The acceleration responsive of wall bushing 100 self.
Described acceleration measurement device also includes that the 5th accelerometer A5, described 5th accelerometer A5 are used for measuring through walls
Sleeve pipe 100 is in described Xs direction, Zs direction and the acceleration of Y-direction, the center of gravity of described first sleeve 111, described first sleeve
111 are equipped with described 5th accelerometer A5 near the center of gravity of one end of described transition tank 130 and described second sleeve pipe 112.
Described acceleration measurement device also includes that the 6th accelerometer A6, described 6th accelerometer A6 are used for measuring through walls
Sleeve pipe 100 is at described Zs direction and the acceleration of described Y-direction, the outer surface of described wall bushing 100 and described inner guide 120
Outer surface be equipped with described 6th accelerometer A6, be located at the 6th accelerometer A6 of the outer surface of described wall bushing 100
With the same cross section that the 6th accelerometer A6 of the outer surface being located at described inner guide 120 is positioned at this wall bushing 100, use
Draw trocar sheath 110 and inner guide 120 carrying out integral and calculating after recording the accekeration of outer case sleeve 110 and inner guide 120
Moving displacement, thus calculate outer relative displacement the most between the two according to both displacements, and then judge that wall bushing is on ground
Earthquake centre has collisionless, the air gap deficiency to cause problems such as puncturing.Further, described 6th accelerometer A6 is also located at described
The center of gravity of the first guide rod 121 and the center of gravity of described second guide rod 122.Owing to the setting of the 6th acceleration is mainly in order to sentence
Disconnected between trocar sheath 110 and inner guide 120, whether there is the situations such as collision, mainly consider trocar sheath 110 and inner guide 120
Radial displacement, thus only need Zs and Y-direction are measured, the acceleration in axially (Xs direction) need not be measured, thus save survey
Examination cost.Simultaneously because the acceleration in Xs direction is the least under actual vibrational state, it is difficult to detect, thus at inner guide
The 6th accelerometer A6 that 120 centers of gravity are arranged all eliminates the test in Xs direction, thus reduces testing cost and installation difficulty.
As it is shown in figure 5, further, described acceleration measurement device also includes be located on described installing plate 400 four
7th accelerometer A7, four the 7th accelerometer A7 are fitted around hole 410 circumference and are evenly arranged, the 4th accelerometer A4 in order to
Measure the installing plate 400 acceleration in X-direction, thus calculate and reverse outside the face of installing plate 400.
In the present embodiment, also including displacement measuring device, as shown in Figure 6, institute's displacement measurement device includes setting respectively
In the first displacement meter D1 of table top 210 of described vibration table 200, the second displacement meter D2 being located in described support beam 310 with set
Triple motion meter D3 in wall bushing 100 outer surface.Described first displacement meter D1, described second displacement meter D2 and the described 3rd
Displacement meter D3 is respectively in order to measure described vibration table 200, described support beam 310 and wall bushing 100 at described X-direction, described Y
Direction and the displacement of described Z-direction.By installing acceleration measurement device and displacement measuring device on this assay device, permissible
Wall bushing 100 acceleration under seismic stimulation and displacement are measured, utilizes acceleration and displacement relation, can mutual school
Nuclear test result, it is ensured that the reliability of sensor measurement.
Specifically, the triple motion meter D3 being located at wall bushing 100 outer surface is at least two, two triple motion meter D3
It is respectively arranged on described first sleeve 111 and described in excessively, crosses tank away from the one end and described second sleeve pipe 112 crossing tank 130 described in excessively
One end of 130.The present invention also dependent on being actually needed in described first sleeve 111 near one end of described transition tank 130, described
Second sleeve pipe 112 arranges that near one end of described transition tank 130 the 4th displacement meter D4, described 4th displacement meter D4 wear in order to measure
Wall sleeve 100 is in described Y-direction and the displacement of described Z-direction.4th displacement meter D4 is at least two, two described 4th displacements
Meter D4 is respectively arranged on described first sleeve 111 near one end of described transition tank 130 and described second sleeve pipe 112 near described mistake
Cross one end of tank 130.
Further, as it is shown in fig. 7, the present invention also can arrange four according to actual needs on described installing plate 400
Five displacement meter D5, four the 5th displacement meter D5 are fitted around hole 410 circumference and are evenly arranged, and the 5th displacement meter D5 is in order to measure installation
Plate 400 is in the displacement of X-direction.
As shown in Figure 8, in the present embodiment, present invention additionally comprises strain gauge means, described strain gauge means includes
The first strain gauge S1 being located at wall bushing 100 outer surface and the second strain gauge S2 being located on described inner guide 120, use respectively
With assessment trocar sheath 110 and the strain of inner guide 120 and deformation, so that it is determined that the shock strength of test sample.
Specifically, two described first strain gauges S1 are respectively arranged on described first sleeve 111 near one end of transition tank 130
With the second sleeve pipe 112 near one end of transition tank 130.Place owing to being connected with transition tank 130 on wall bushing 100 is antidetonation
The weakest link, arranges strain measurement element in this place, both can reach the effect of test strain, and can save again and test into
This.As shown in Fig. 9 (a) and Fig. 9 (b), each first strain gauge S1 all includes that four three-dimensional strain rosette S11 (are arranged by three-dimensional
Three foil gauges composition), four described three-dimensional strain rosette S11 are evenly arranged along the periphery of wall bushing 100, and each three
To strain rosette S11 for measuring this wall bushing 100 strain value in X-direction, Y-direction and Z-direction, invention achieves comprehensively
Ground measures wall bushing 100 stress and the effect of deformation.
As shown in Fig. 8, Figure 10 (a) and Figure 10 (b), the second described strain gauge S2 is located at the first guide rod 121 near transition
One end of tank 130, the first guide rod 121 away from one end of transition tank 130, the second guide rod 122 near one end of transition tank 130,
Two guide rods 122 are away from one end of transition tank 130.Each second strain gauge S2 includes four longitudinal strain sheet S21, and four longitudinal directions should
Becoming sheet S21 circumference to be evenly arranged, foil gauge S21 is used to measure wall bushing 100 strain value in z-direction longitudinally in each.
It should be noted that also dependent on being actually needed on transition tank 130, the present invention arranges that near one end of installing plate 400 second should
Become meter S2, meanwhile, when the trocar sheath 110 that this sends out described is made up of the splicing of multistage sleeve pipe, it is possible in stitching portion at least provided with the
Two strain gauges S2.
Preferably, present invention additionally comprises controller, described vibration table 200, described acceleration measurement device, described displacement are surveyed
Amount device and described strain gauge means are all electrically connected with described controller.Control vibration table 200 by controller to start, add
Acceleration responsive measured by velometer, displacement measured by displacement meter and strain measurement element measures strain, carries out surveyed data simultaneously
Analytical calculation, and then can realize whole test device is automatically controlled and calculated.In the present embodiment, the acceleration of each measuring point
Degree meter, displacement meter and strain gauge are all connected with controller, in order to be determined clearly the shock resistance of wall bushing 100 corresponding site
Energy.
Present invention also offers a kind of extra-high voltage direct-current and be combined wall bushing shock test method, comprise the following steps:
Wall bushing 100 sample is arranged on installing plate 400；
Table top 210 at vibration table 200 arranges the first accelerometer A1, and support beam 310 is arranged the second accelerometer A2,
Wall bushing 100 outer surface arranges the 3rd accelerometer A3, the 4th accelerometer A4 and the 5th accelerometer A5, inner guide 120
Upper layout the 6th accelerometer A6, installing plate 400 is arranged the 7th accelerometer A7；Table top 210 at vibration table 200 arranges
One displacement meter D1, support beam 310 is arranged the second displacement meter D2, wall bushing 100 outer surface arrange triple motion meter D3 and
Four displacement meter D4, installing plate 400 is arranged the 5th displacement meter D5；The first strain gauge S1 is arranged at wall bushing 100 outer surface, interior
The second strain gauge S2 arranged by guide rod 120；
Vibration on Start-up platform 200；
First accelerometer A1, the second accelerometer A2, the 3rd accelerometer A3, the 4th accelerometer A4, the 5th acceleration
Degree meter A5, the 6th accelerometer A6, the 7th accelerometer A7 gather institute's measuring acceleration value respectively；First displacement meter D1, second
Move meter D2, triple motion meter D3, the 4th displacement meter D4 and the 5th displacement meter D5 gather measured displacement value respectively；First displacement meter D1
Surveyed strain value is gathered respectively with the second displacement meter D2；
Controller accekeration, shift value and strain value to being surveyed is analyzed processing, in order to determine under actual condition
The anti-seismic performance of wall bushing 100.
The present invention can be used for the sample under simulation test different earthquake excitation (including the seismic wave of 9 degree of earthquake intensity) and rings
Should.Below the operating condition of test of the present invention is illustrated:
Seismic wave is chosen for Yunnan ripple three-dimensional, TAFT seismic wave three-dimensional, EL-CENTRO seismic wave three-dimensional, Artificial Seismic Wave
Three-dimensional.Seismic wave uses that X is unidirectional and three-dimensional input, input peak accelerator ratio be X:Y:Z be 1:0.85:0.65.Concrete examination
Test operating mode and arrange as follows:
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that, come for those of ordinary skill in the art
Saying, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the protection of the present invention
Scope.
Claims (10)
1. an extra-high voltage direct-current is combined wall bushing shock test device, it is characterised in that includes acceleration measurement device, prop up
Frame, the installing plate being located on described support and the vibration table being located under described bracket bottom, described support is provided with the described installation of support
The support beam of plate, described installing plate offers the installing hole passed for wall bushing, and described installing plate is obliquely installed, described acceleration
Degree measurement apparatus includes the first accelerometer being located on described vibration table, the second accelerometer of being located in described support beam and
It is located at the 3rd accelerometer of this wall bushing outer surface, the 4th accelerometer；
Setting X-direction and point to the direction of the other end as wall bushing in horizontal plane from one end, Y-direction is to be perpendicular in horizontal plane
The direction of X, Z-direction is to be perpendicular to the direction on ground, described first accelerometer, described second accelerometer, described Acanthopanan trifoliatus (L.) Merr.
Velometer is respectively used to measure described vibration table, described support beam and wall bushing at described X-direction, described Y-direction and described Z
The acceleration in direction；
Setting axial as wall bushing of Xs direction, Zs direction is wall bushing radial direction in perpendicular, and the described 4th adds
Velometer is for measuring wall bushing at described Xs direction and the acceleration in described Zs direction.
Extra-high voltage direct-current the most according to claim 1 is combined wall bushing shock test device, outside this wall bushing includes
Sleeve pipe and transition tank, described trocar sheath includes first sleeve and the second sleeve pipe being positioned at transition tank two ends, and described second sleeve pipe leans on
One end of nearly described transition tank contacts with the inwall of described installing hole, it is characterised in that described 3rd accelerometer and described
4th accelerometer is multiple, described first sleeve away from one end of described transition tank, described second sleeve pipe away from described mistake
The one end and described second sleeve pipe that cross tank are equipped with described 3rd accelerometer and described near one end of described transition tank
Four accelerometers.
Extra-high voltage direct-current the most according to claim 2 is combined wall bushing shock test device, it is characterised in that described in add
Velocity measuring device also include the 5th accelerometer, described 5th accelerometer be used for measuring wall bushing in described Xs direction,
Zs direction and the acceleration of Y-direction, the center of gravity of described first sleeve, described first sleeve are near one end of described transition tank and institute
The center of gravity stating the second sleeve pipe is equipped with described 5th accelerometer.
Extra-high voltage direct-current the most according to claim 1 is combined wall bushing shock test device, is provided with in this wall bushing
Inner guide, it is characterised in that described acceleration measurement device also includes that the 6th accelerometer, described 6th accelerometer are used for surveying
Amount wall bushing is in described Zs direction and the acceleration of Y-direction, the outer surface of described wall bushing and the appearance of described inner guide
Face is equipped with described 6th accelerometer, be located at the 6th accelerometer of outer surface of described wall bushing and be located at described in lead
6th accelerometer of the outer surface of bar is positioned at the same cross section of this wall bushing.
Extra-high voltage direct-current the most according to claim 4 is combined wall bushing shock test device, and this wall bushing also includes
Transition tank, described inner guide includes the first guide rod and the second guide rod being located at described transition tank two ends, it is characterised in that described
The center of gravity of one guide rod and the center of gravity of described second guide rod are equipped with described 6th accelerometer.
Extra-high voltage direct-current the most according to claim 1 is combined wall bushing shock test device, it is characterised in that also include
Displacement measuring device, institute's displacement measurement device includes the first displacement meter being located on described vibration table, is located at described support beam
On the second displacement meter and be located at the triple motion meter of wall bushing outer surface, described first displacement meter, described second displacement meter
With the score of described triple motion not in order to measure described vibration table, described support beam and wall bushing at described X-direction, described Y
Direction and the displacement of described Z-direction.
Extra-high voltage direct-current the most according to claim 6 is combined wall bushing shock test device, outside this wall bushing includes
Sleeve pipe and transition tank, described trocar sheath includes first sleeve and the second sleeve pipe being located at transition tank two ends, it is characterised in that described
Triple motion is calculated as at least two, and two described triple motions are respectively arranged on described first sleeve away from the one end crossing tank described in excessively
With described second sleeve pipe away from the one end crossing tank described in excessively.
8. it is combined wall bushing shock test device according to the extra-high voltage direct-current described in claim 1 or 6, sets in this wall bushing
There is inner guide, it is characterised in that also include that strain gauge means, described strain gauge means include being located at wall bushing outer surface
The first strain gauge and the second strain gauge of being located on described inner guide.
Extra-high voltage direct-current the most according to any one of claim 1 to 7 is combined wall bushing shock test device, its feature
It is, also includes that controller, described vibration table and described acceleration measurement device are all electrically connected with described controller.
10. an extra-high voltage direct-current is combined wall bushing shock test method, it is characterised in that comprise the following steps:
Being installed on a mounting board by wall bushing, this installing plate is located in the support beam of support；
Table top at vibration table arranges the first accelerometer, arranges the second accelerometer in support beam, in wall bushing appearance
The 3rd accelerometer and the 4th accelerometer are arranged in face；
Vibration on Start-up platform；
First accelerometer gathers the accekeration of vibration table, and the second accelerometer gathers the accekeration of support beam, Acanthopanan trifoliatus (L.) Merr.
Velometer and the 4th accelerometer gather the accekeration of wall bushing；
It is analyzed institute's measuring acceleration value processing, in order to determine the anti-seismic performance of this wall bushing.
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| CN112038015A (en) * | 2020-09-01 | 2020-12-04 | 沈阳工业大学 | Wall bushing of capacitive high-temperature solid electric heat storage device and design method |
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| CN106052996B (en) | 2018-06-19 |
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