CN106680544A - Clamping device for accelerated aging test of lightning arrester - Google Patents
Clamping device for accelerated aging test of lightning arrester Download PDFInfo
- Publication number
- CN106680544A CN106680544A CN201611199489.5A CN201611199489A CN106680544A CN 106680544 A CN106680544 A CN 106680544A CN 201611199489 A CN201611199489 A CN 201611199489A CN 106680544 A CN106680544 A CN 106680544A
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- top electrode
- clamping device
- electrode
- accelerated aging
- aging test
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0425—Test clips, e.g. for IC's
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention comprises a clamping device for the accelerated aging test of a lightning arrester to ensure good contact between an electrode and a test object, the test data is accurate and the electrode is easy to replace. The clamping device comprises an upper electrode and a lower electrode for clamping the test object; and a fixed base, an insulating device and an upper electrode pressing bar which are connected sequentially in an axial direction to the upper end of the upper electrode. The upper electrode is connected with a high voltage lead and the lower electrode is connected with a grounding lead. The fixed base includes a connecting column, a clamping slot, and an elastic element disposed outside the connecting post in a sleeving manner. The connecting post is arranged as a stepped shaft increasing in size from up to down, and the inside of the clamping slot is provided with a stepped hole decreasing in size from up to down. The large end of the connecting post is fixedly connected with the upper electrode, the small end of the connecting post is inserted into the small hole of the clamping slot to be slidably connected, the small end of the connecting post is fixed with a limit screw axially, and a nut of the limit screw is attached onto the step of the stepped hole for restricting the gap length between a shaft shoulder of the connecting post and the lower end face of the clamping slot. One end of the elastic element in the compressed state is connected to the upper electrode and the other end is connected to the lower end face of the clamping slot.
Description
Technical field
The present invention relates to test of lightning arrester engineering device technique field, specially spark gap accelerated aging test clamping device.
Background technology
The bottom electrode of existing spark gap resistor disc or proportional unit accelerated aging test clamping device is by monolayer round steel
The rack of making is tray support test product, and Top electrode is generally positioned over the surface of test product to be measured by self gravitation.With resistor disc
As a example by, being affected by test product surface smoothness, it is point contact that this structure is likely to result between electrode and test product, it is impossible to ensured
The uniform energization on test product surface, and cannot accurate characterization test product characteristic.Cause experimental test data not rigorous, have impact on examination
Test the accuracy of data.To solve above-mentioned technical problem, those skilled in the art typically increases the quality of Top electrode, by certainly
So gravity increases electrode and fitting between test product, but, can still there is the loose contact between electrode and test product good and measure
The inaccurate risk of data.And increasing the quality of electrode merely can increase the difficulty that test product is installed and changes electrode, while
The increase of electrode is thickened and also can affect dynamic thermal balance of the resistor disc in the environment (in baking oven).
The content of the invention
For problems of the prior art, the present invention provides a kind of spark gap accelerated aging test clamping device,
The good contact between electrode and test product is ensure that, test data accurately, changes electrode conveniently, practical.
The present invention is to be achieved through the following technical solutions：
Spark gap accelerated aging test clamping device, including for accommodating the Top electrode and bottom electrode of test product to be measured, with
And axially connecting fixed pedestal in Top electrode upper end, seal and Top electrode down-pressed pole successively；Described Top electrode connects
Connect high-voltage connection, bottom electrode connection ground lead；Described fixed pedestal includes connecting pole and draw-in groove, and is set in connecting pole
Outside flexible member；Connecting pole is arranged in up-small and down-big multidiameter, and draw-in groove inside arranges up big and down small shoulder hole；Connection
The big end of post is fixedly connected with Top electrode, is slidably connected in the aperture of small end insertion draw-in groove, and the small end axial restraint of connecting pole sets
Stop screw is equipped with, the nut of stop screw is connected on the ladder of shoulder hole, under the shaft shoulder and draw-in groove that limit connecting pole
The gap length of end face；Flexible member one end connection Top electrode in compressive state, other end connection draw-in groove lower surface.
Preferably, Top electrode connects high-voltage connection by the way that the high-voltage connection screw rod of connecting pole or draw-in groove side is fixedly installed.
Preferably, the side of bottom electrode offers the installing hole for arranging temperature sensor；Bottom electrode bottom is fixedly installed
The ground lead screw rod of connection ground lead.
Preferably, the lower end of connecting pole is threaded connection and is fixed with Top electrode, and the upper end outside of draw-in groove is connected by screw thread
Connect and fixed with seal；Seal upper end is connected by insulated screw with Top electrode down-pressed pole axial restraint.
Preferably, flexible member adopts compression spring.
Preferably, also including upper strata rack and lower floor's rack；Top electrode down-pressed pole is slidably arranged on the rack of upper strata, lower electricity
Pole is fixedly installed on lower floor's rack.
Further, Top electrode down-pressed pole arranges the first fixed plate, bottom electrode and lower floor's rack with the junction of upper strata rack
Junction arrange the second fixed plate；First fixed plate and the second fixed plate include metallic plate and the insulation board being stacked,
Insulation board is arranged at side of the metallic plate near test position.
Further, the metallic plate and insulation board in the first fixed plate and the second fixed plate is fixed by insulated screw and connected
Connect, the first fixed plate and the second fixed plate offer louvre.
Further, Top electrode down-pressed pole to stretch out and arrange locking device on the part of upper strata rack；Described locking device bag
The lock fixed with upper strata rack is included, the clamping screw of lock locking end is connected to；Top electrode down-pressed pole is through lock locking end
The locking through hole for opening up, clamping screw passes through the locking through hole of locking end, rotational lock bolt to lock lock, fixed Top electrode
Down-pressed pole.
Further, limit sliding chutes are opened up on lock, gag lever post is connected through limit sliding chutes with clamping screw, limits locking
The range of movement of bolt.
Compared with prior art, the present invention has following beneficial technique effect：
The present invention can increase the distance between Top electrode and bottom electrode by moving up and down Top electrode down-pressed pole.Meet
The test of lightning arrester device of different size height is placed therebetween, can test the spark gap resistor disc and ratio list of plurality of specifications
Unit.Flexible member is arranged outside fixed pedestal, is being pushed after Top electrode contacts with test product surface, locked locking device, now,
Top electrode has small gradient adjustment according to the smooth degree on test product surface, and in addition flexible member is in compression shape
State, a downward power can be transmitted under the counteracting force of flexible member to Top electrode, make Top electrode more be adjacent to test product surface, connect
Touch more good, and then the accuracy of guarantee test data.
Further, between Top electrode of the invention and fixed pedestal it is Hard link, connected mode is threaded connection, is not required to
Dismounted by wanting any aid.Simultaneously upper/lower electrode is connected by lead screw rod, changes Top electrode and bottom electrode is convenient,
It is practical.
Further, the present invention includes upper strata rack and lower floor's rack, upper strata rack and the corresponding position point of lower floor's rack
First fixed plate and the second fixed plate are not installed, so as to strengthen the intensity of whole test tool, prevent that transverse deformation from causing is upper
The problem that electrode down-pressed pole central point offsets and fixation is unstable.In addition, upper strata rack and lower floor's rack can install multiple
Spark gap accelerated aging test clamping device, realizes carrying out the senile experiment of multiple resistor discs, raising efficiency simultaneously.
Further, the material that the seal and insulation board in the present invention is adopted, both can be with resistance to for politef
High temperature, can play insulating effect again, it is to avoid the situation of upper and lower layer rack short circuit occurs.
Description of the drawings
Fig. 1 is the structural representation of clamping device in present example.
Fig. 2 is the enlarged diagram of fixed pedestal in Fig. 1.
Fig. 3 is the enlarged diagram that present example mesohigh lead screw rod is connected with connecting pole.
In figure, 1. Top electrode down-pressed pole, 2. locking device, 201. clamping screws, 202. locks, 203. limit sliding chutes, 3.
First fixed plate, 4. seal, 5. fixed pedestal, 51. connecting poles, 52. draw-in grooves, 6. Top electrode, 7. bottom electrode, 8. second consolidates
Fixed board, 9. flexible member, 10. high-voltage connection screw rod, 11. ground lead screw rods.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, be explanation of the invention rather than
Limit.
Spark gap accelerated aging test clamping device of the present invention, including Top electrode 6, upper strata rack and Top electrode down-pressed pole
1；Successively Jing seals 4 and fixed pedestal 5 are fixedly connected with Top electrode 6 for the bottom of Top electrode down-pressed pole 1, top and upper wire
Frame is flexibly connected, and along Top electrode 6 direction movement is pushed, and makes the top that testing resistance piece is pressed under Top electrode 6.
Also include locking device 2；Locking device 2 is fixedly connected with upper strata rack, and Top electrode down-pressed pole 1 passes through locking device
2 through hole, the clamping screw 201 of regulation locking device 2 makes Top electrode down-pressed pole 1 fix with locking device 2.
The upper end of fixed pedestal 5 is connected with the bottom of Top electrode down-pressed pole 1 by seal 4, the lower end of fixed pedestal 5
It is connected with Top electrode 6；The upper end of draw-in groove 52 outside of fixed pedestal 5 is connected with seal 4, lower end inside and connecting pole 51
It is slidably connected, high-voltage connection screw rod 10 is installed in the side of draw-in groove 52；Up big and down small shoulder hole, connecting pole 51 are set in draw-in groove 52
Upper end is arranged in up-small and down-big multidiameter, and connecting pole 51 is stretched in draw-in groove 52 and arranged, the axially arranged limited location screw of inserting end,
The gap between the lower surface of draw-in groove 52 and the shaft shoulder of connecting pole 51 is limited, the nut area of stop screw is more than stomidium under shoulder hole
Footpath, it is spacing therefore, it is possible to clamping.Be arranged flexible member on connecting pole 51, flexible member under normal conditions, one end and the upper table of Top electrode 6
Face contacts, and the other end is contacted with the lower surface of draw-in groove 52, and the gap limited between the lower surface of draw-in groove 52 and the shaft shoulder of connecting pole 51 is opened；
When treating test article and being tested, limit the lower surface of draw-in groove 52 and be pressed into contact with the shaft shoulder of connecting pole 51, spring is by compression clearance
Length, further presses to Top electrode 6.
The upper surface of seal 4 is connected with the bottom of Top electrode down-pressed pole 1, the lower surface and fixed base of seal 4
The upper end connection of seat 5.
The junction of Top electrode down-pressed pole 1 and upper strata rack is the first fixed plate 3, the first fixed plate 3 include metallic plate and
Insulation board, metallic plate is arranged at insulation board top, and metallic plate is fixedly connected with insulation board by insulating screw.
The lower surface of bottom electrode 7 is connected with ground lead screw rod 11, bottom electrode is grounded by ground lead screw rod 11.Lower electricity
The side of pole 7 opens up and arrange in receiving hole, receiving hole temperature sensor.
Also include lower floor's rack；Lower floor's rack includes the second fixed plate 8；Second fixed plate 8 includes metallic plate and insulation board,
Insulation board is arranged at metallic plate top, and metallic plate opens up through hole with insulation board center, and ground lead screw rod 11 passes through through hole
It is connected with bottom electrode 7.The material of seal and insulation board is politef.In first fixed plate 3 and the second fixed plate 5
Open up thermal vias.
The device of the present invention also can be used as spark gap resistor disc or the accelerated aging test clamping device of proportional unit.Examination
Product are accommodated between Top electrode 6 and bottom electrode 7.
The present invention is illustrated by taking the structure of spark gap accelerated aging test clamping device as an example.
As shown in figure 1, in one embodiment of the invention, spark gap resistor disc accelerated aging test dress is disclosed
Put, including Top electrode 6 and bottom electrode 7, Top electrode 6 is located at the surface of bottom electrode 7, Top electrode 6 is with the material of bottom electrode 7
10mm thickness red coppers；Position to allow Top electrode 6 adjusts up and down, the spark gap resistor disc of convenient test different size, if
Top electrode down-pressed pole 1 is put, the bottom of Top electrode down-pressed pole 1 is fixedly connected with Top electrode 6, top is with the activity of upper strata rack even
Connect, along Top electrode 6 direction movement is pushed, make the upper surface that product to be tested are pressed under Top electrode 6.To improve test efficiency, together
The multigroup tests of Shi Jinhang, are provided with upper strata rack and lower floor's rack, upper strata rack and lower floor's rack be 0.65-0.85mm thickness not
Rust steel square tube, on upper strata, rack and lower floor's rack correspondence position are respectively mounted the fixed plate 8 of multigroup first fixed plate 3 and second, make
Obtain corresponding Top electrode 6, the position of bottom electrode 7 to fix, and can guarantee that Top electrode is fitted completely with test product surface to be measured and contact, from
And the accuracy of guarantee test data.
In one embodiment of the invention, the position to make Top electrode down-pressed pole 1 is fixed, and arranges locking device 2, lock
Tight device 2 includes lock 202 and clamping screw 201, and Top electrode down-pressed pole 1 passes through the locking through hole that 202 locking ends of lock are opened up,
Through the locking through hole of locking end, rotational lock bolt 201 locks lock to clamping screw 201, so as to fixed Top electrode is pushed
Bar 1.To make clamping screw 201 when outwarding winding, will not drop from locking through hole, on lock 202 limit sliding chutes 203 are opened up, limit
Position bar is connected through limit sliding chutes 203 with clamping screw 201, limits the range of movement of clamping screw 201.
In one embodiment of the invention, also including fixed pedestal 5 and seal 4；As shown in Fig. 2 fixed base
Seat 5 includes the connecting pole 51 and draw-in groove 52 of coaxial socket, and high-voltage connection screw rod 10 is arranged on connecting pole 51；The lower end of connecting pole 51
It is fixedly connected with Top electrode 6, the upper end of draw-in groove 52 is connected with seal 4, the outside of connecting pole 51 is arranged flexible member 9, bullet
Property element 9 be spring, the connection end of flexible member 9 is connected respectively with the upper surface and the lower surface of draw-in groove 52 of Top electrode 6.Pushing
After Top electrode 6 is contacted with test product surface, locked locking device, now, Top electrode has micro- according to test product surfacing degree
Little gradient adjustment, in addition in compressive state, the meeting under the counteracting force of flexible member 9 be passed flexible member 9 to Top electrode 6
A downward power is passed, makes Top electrode 6 more be adjacent to test product surface, contacted better.As shown in figure 3, in order to more preferable
Ensure conductive contact and test accuracy, high-voltage connection screw rod 10 is set directly on connecting pole 51.
In one embodiment of the invention, to prevent short circuit between upper strata rack and lower floor's rack, first is fixed
The fixed plate 8 of plate 3 and second is set to the thickness of the structure comprising metallic plate and insulation board, metallic plate and insulation board and is 4mm-
6mm.The material of insulation board is politef, and the material can both play insulating effect, and high temperature resistant, and be suitably applied spark gap
In resistor disc aging test.
In one embodiment of the invention, it is the heat condition of observing test product itself to be measured, opens up on bottom electrode 7
Receiving hole, arranges temperature sensor in receiving hole.
In one embodiment of the invention, fixed pedestal 5 is connected with seal 4 by cutting ferrule, to make Top electrode
Operation can be micro-adjusted, the distance of 0.7-1.3mm is left between the outer surface and fixing device 5 of cutting ferrule shell, facilitate right
Top electrode is adjusted.
When in one embodiment of the invention, to make integrated tooling support be put into high-temperature cabinet, reduce as far as possible to height
The impact of incubator internal temperature uniformity, in the first fixed plate 3 and the second fixed plate 8 thermal vias, thermal vias are opened up
So that heat is able to faster equilibrium.
More than, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any to be familiar with
Those skilled in the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
The Top electrode down-pressed pole that the present invention is arranged, can move up and down, and not only can test plurality of specifications, size, height
Spark gap resistor disc or proportional unit, moreover it is possible to make electrode seal fit test product surface, so as to guarantee test the data obtained
Accuracy.Meanwhile, the cooperation of insulant politef in clamping device is used, and is greatly reduced device and is short-circuited failure
Probability, improve the safety of test, it is ensured that the safety of test product and equipment.
Claims (10)
1. spark gap accelerated aging test clamping device, it is characterised in that include the Top electrode (6) for accommodating test product to be measured
With bottom electrode (7), and axially connecting fixed pedestal (5) in Top electrode (6) upper end, seal (4) and upper electricity successively
Pole down-pressed pole (1)；
Described Top electrode (6) connection high-voltage connection, bottom electrode (7) connection ground lead；
Described fixed pedestal (5) includes connecting pole (51) and draw-in groove (52), and is set in the outside elasticity of connecting pole (51)
Element (9)；Connecting pole (51) is arranged in up-small and down-big multidiameter, and up big and down small shoulder hole is arranged inside draw-in groove (52)；Even
The big end for connecing post (51) is fixedly connected with Top electrode (6), is slidably connected in the aperture of small end insertion draw-in groove (52), connecting pole (51)
Small end axial restraint be provided with stop screw, the nut of stop screw is connected on the ladder of shoulder hole, for limiting connection
The shaft shoulder of post (51) and the gap length of draw-in groove (52) lower surface；The upper electricity of flexible member (9) one end connection in compressive state
Pole (6), other end connection draw-in groove (52) lower surface.
2. spark gap accelerated aging test clamping device according to claim 1, it is characterised in that Top electrode (6) is led to
Cross high-voltage connection screw rod (10) the connection high-voltage connection that connecting pole (51) or draw-in groove (52) side is fixedly installed.
3. spark gap accelerated aging test clamping device according to claim 1, it is characterised in that bottom electrode (7)
Side offers the installing hole for arranging temperature sensor；Bottom electrode (7) bottom is fixedly installed the grounding lead of connection ground lead
Line screw rod (11).
4. spark gap accelerated aging test clamping device according to claim 1, it is characterised in that connecting pole (51)
Lower end is threaded connection to be fixed with Top electrode (6), and the upper end outside of draw-in groove (52) is threaded connection with seal (4) admittedly
It is fixed；Seal (4) upper end is connected by insulated screw with Top electrode down-pressed pole (1) axial restraint.
5. spark gap accelerated aging test clamping device according to claim 1, it is characterised in that flexible member (9)
Using compression spring.
6. spark gap accelerated aging test clamping device according to claim 1, it is characterised in that also including upper wire
Frame and lower floor's rack；Top electrode down-pressed pole (1) is slidably arranged on the rack of upper strata, and bottom electrode (7) is fixedly installed on lower floor's rack
On.
7. spark gap accelerated aging test clamping device according to claim 6, it is characterised in that Top electrode down-pressed pole
(1) the first fixed plate (3) is set with the junction of upper strata rack, and bottom electrode (7) arranges second and consolidates with the junction of lower floor's rack
Fixed board (8)；First fixed plate (3) and the second fixed plate (8) include metallic plate and the insulation board being stacked, and insulation board is all provided with
Put the side near test position in metallic plate.
8. spark gap accelerated aging test clamping device according to claim 7, it is characterised in that the first fixed plate
(3) it is fixedly connected by insulated screw with insulation board with the metallic plate in the second fixed plate (8), the first fixed plate (3) and
Two fixed plates (8) offer louvre.
9. spark gap accelerated aging test clamping device according to claim 6, it is characterised in that Top electrode down-pressed pole
(1) stretch out and arrange on the part of upper strata rack locking device (2)；Described locking device (2) includes and the fixation of upper strata rack
Lock (202), is connected to the clamping screw (201) of lock (202) locking end；Top electrode down-pressed pole (1) is through lock (202) lock
Tightly hold the locking through hole for opening up, through the locking through hole of locking end, rotational lock bolt (201) makes lock to clamping screw (201)
Locking, fixed Top electrode down-pressed pole (1).
10. spark gap accelerated aging test clamping device according to claim 9, it is characterised in that on lock (202)
Limit sliding chutes (203) are opened up, gag lever post is connected through limit sliding chutes (203) with clamping screw (201), limit clamping screw
(201) range of movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199489.5A CN106680544B (en) | 2016-12-22 | 2016-12-22 | Arrester accelerated aging test clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611199489.5A CN106680544B (en) | 2016-12-22 | 2016-12-22 | Arrester accelerated aging test clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106680544A true CN106680544A (en) | 2017-05-17 |
| CN106680544B CN106680544B (en) | 2019-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611199489.5A Active CN106680544B (en) | 2016-12-22 | 2016-12-22 | Arrester accelerated aging test clamping device |
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| Country | Link |
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| CN (1) | CN106680544B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109633399A (en) * | 2018-12-20 | 2019-04-16 | 北京无线电计量测试研究所 | A kind of Testing device of electrical parameter of quartz wafer |
| CN116008687A (en) * | 2022-11-30 | 2023-04-25 | 国网江苏省电力有限公司无锡供电分公司 | Test method for H-MOA aging characteristics |
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| Publication number | Publication date |
|---|---|
| CN106680544B (en) | 2019-01-25 |
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Effective date of registration: 20210817 Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an province high tech Zone No. 7 Tang Xing Lu Patentee before: CHINA XD ELECTRIC Co.,Ltd. Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee after: Xi'an High Voltage Electrical Apparatus Research Institute Co.,Ltd. Address before: 710077 No. 18 West Second Ring Road, Shaanxi, Xi'an Patentee before: XI'AN HIGH VOLTAGE APPARATUS RESEARCH INSTITUTE Co.,Ltd. |