CN208239533U - The stretching device and testing equipment of insulating materials electric branch test - Google Patents
The stretching device and testing equipment of insulating materials electric branch test Download PDFInfo
- Publication number
- CN208239533U CN208239533U CN201820441392.9U CN201820441392U CN208239533U CN 208239533 U CN208239533 U CN 208239533U CN 201820441392 U CN201820441392 U CN 201820441392U CN 208239533 U CN208239533 U CN 208239533U
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- China
- Prior art keywords
- grip block
- stretching device
- casting die
- sample
- groove
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- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 239000011810 insulating material Substances 0.000 title claims abstract description 19
- 238000005266 casting Methods 0.000 claims abstract description 30
- 239000004677 Nylon Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The stretching device of insulating materials electric branch test disclosed by the utility model, including fixed link and two clamping pieces；Each clamping piece includes grip block, moving lever and fixed plate；The grip block is equipped with casting die bar, the screw hole for adjusting bolt and cooperate with the adjusting bolt for adjusting the casting die bar, the front of the grip block is additionally provided with groove, the casting die bar is placed in the groove, and described adjusting bolt one end passes through the screw hole and connect with the side of the casting die bar；The fixed plate offers the through-hole for cooperating the moving lever, and one end of the moving lever passes through the through-hole and connect with the back side of the grip block；The groove of the grip block of two clamping pieces is oppositely arranged, and the both ends of the fixed link are connect with the fixed plate of two clamping pieces respectively.A kind of testing equipment is additionally provided, stable holding during electric branch test to sample is can be realized, effectively improves the controllability of the stretch ratio of sample, improve the reliability of test result.
Description
Technical field
The utility model relates to the stretchings that the testing field of insulating materials more particularly to a kind of insulating materials electric branch are tested
Device and testing equipment.
Background technique
With the continuous social and economic development, power supply system construction level is continuously improved, and power cable is increasingly becoming
The main power transmission form of urban power distribution network.Since the growth of electric branch may cause the failure of cable run, and cable is adopted
Insulating materials has different degrees of expansion when in use, and accessory internal can bear different stretch stress, therefore common exhausted
Edge material such as silicon rubber, crosslinked polyethylene need to carry out electric branch tension test before being applied to cable production application, with
Study electric branch growing state of the insulating materials under stretching condition.
The stretching device that the prior art uses during insulating materials electric branch is tested is as shown in Figure 1, by adjusting spiral shell
The plate up and down of bolt 101, control grip block 102 clamps sample, to carry out tension test.In the process for implementing the utility model
In, inventors have found that since stretching device and sample need to be placed on to carry out tension test in insulating oil, due to existing stretching
Face between the grip block of device and the sample is difficult to uniformly contact with face, is easy to make the sample because of frictional force deficiency
It slides during stretching, causes the stretch ratio of the sample to be difficult to control, keep the reliability of test result lower.
Utility model content
The purpose of the utility model embodiment is to provide a kind of stretching device of insulating materials electric branch test and test is set
It is standby, it can be realized during electric branch test to the stable holding of sample, effectively improve the stretch ratio of sample can
Control property, improves the reliability of test result.
To achieve the above object, the utility model embodiment provides a kind of stretching dress of insulating materials electric branch test
It sets, including fixed link and two clamping pieces；Each clamping piece includes grip block, moving lever and fixed plate；The grip block
Equipped with casting die bar, the screw hole for adjusting bolt and cooperate with the adjusting bolt for adjusting the casting die bar, the clamping
The front of plate is also provided with groove, and the casting die bar is placed in the groove, and described one end for adjusting bolt passes through the screw hole
It is connect with the side of the casting die bar, the side of the casting die bar is also used to cooperate with the groove to clamp the sample；Institute
State the through-hole offered in fixed plate with moving lever cooperation, one end of the moving lever pass through the through-hole and with the folder
Hold the back side connection of plate；The groove of the grip block of two clamping pieces is oppositely arranged, and the both ends of the fixed link are respectively with two
The fixed plate of a clamping piece connects.
As an improvement of the above scheme, the screw hole is perpendicular to the groove；Described one end for adjusting bolt passes through described
Screw hole, the other end protrude the surface of the grip block.
As an improvement of the above scheme, the adjusting bolt quantity of each grip block setting is two, and each institute
The quantity for stating the screw hole of grip block setting is accordingly two；Each described one end for adjusting bolt passes through corresponding described
Screw hole is connect with the side of the casting die bar.
As an improvement of the above scheme, the direction of the casting die bar is identical as the direction of the groove.
As an improvement of the above scheme, the fixed plate is additionally provided with adjusting nut, and the side of the moving lever is equipped with outer spiral shell
Line is with the screw-internal thread fit with the adjusting nut；The adjusting nut is rotatably disposed within the surface of the fixed plate, described
Described one end of moving lever passes through the adjusting nut and the through-hole to connect with the back side of the grip block.
As an improvement of the above scheme, the fixed link is epoxy resin fixed link.
As an improvement of the above scheme, the moving lever is nylon stud.
As an improvement of the above scheme, the adjusting bolt is nylon bolt.
The utility model embodiment additionally provides a kind of testing equipment of insulating materials electric branch test, including outside equipment
Shell, image collecting device, pressurizing device and described in any item stretching devices as above；The stretching device is placed in the equipment
Interior of shell；Described image acquisition device be set to the stretching device top, for acquire test during sample image；
The pressurizing device includes first electrode and second electrode, and the first electrode is used to connect the high electrode of the sample, described
Second electrode is used to connect the low electrode of the sample.
As an improvement of the above scheme, described image acquisition device includes microscope and image processor；The microscope
Above the stretching device, described image processor is used to acquire the image of the sample by the microscope.
Compared with prior art, the stretching device of insulating materials electric branch test disclosed by the utility model and test are set
It is standby, cooperated by the casting die bar and groove of clamping piece, realizes effective clamping in tension test to sample, and by two institutes
Clamping piece is stated to cooperate to stretch the sample, solve in the prior art because frictional force it is insufficient caused by sample
Slippage realizes stable holding during electric branch test to sample, effectively improves the stretch ratio of sample
Controllability, improve the reliability of test result.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the stretching device of the insulating materials electric branch test of the prior art.
Fig. 2 is the structural schematic diagram of the testing equipment of the insulating materials electric branch test of the utility model embodiment.
Fig. 3 is the structural schematic diagram of the stretching device of the insulating materials electric branch test of the utility model embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It referring to fig. 2, is the knot for the testing equipment that a kind of insulating materials electric branch provided by the embodiment of the utility model is tested
Structure schematic diagram.The testing equipment 200 provided in this embodiment includes device housings 210, image collecting device 220, pressurization dress
Set 230 and stretching device 300.
Wherein, the stretching device 300 is installed on the inside of the device housings 210, and described image acquisition device 220 is set
In the top of the stretching device 300；The pressurizing device 230 include first electrode 231 and second electrode 232, described first
Electrode 231 is used to connect the high electrode of sample, and the second electrode 232 is used to connect the low electrode of the sample.
Specifically, described image acquisition device 220 includes microscope 221 and image processor 222.The microscope 221
Above the stretching device 300, described image processor 222 is used to acquire the sample by the microscope 221
Image.
The structural schematic diagram of the stretching device 300 is as shown in Figure 3.The stretching device 300 includes fixed link 310 and two
A clamping piece 320.
Wherein, each clamping piece 320 includes grip block 321, moving lever 322 and fixed plate 323.The grip block
321 are equipped with casting die bar 321a and adjust bolt 321b and the screw hole with the adjusting bolt 321b cooperation, and in the folder
The front for holding plate 321 is also provided with groove 321c.The casting die bar 321a is set in the groove 321c, the adjusting bolt
The first end of 321b is pierced by the inner wall of the groove 321c by the screw hole to connect with the side of the casting die bar 321a.?
In tension test, sample is placed between the casting die bar 321a and the inner wall of the groove 321c, passes through the casting die bar 321a
Cooperation with the groove 321c can pass through the adjusting adjusting bolt 321b to realize the stable holding to the sample
First end be pierced by the length of the groove 321c, to adjust the casting die bar 321a to the pressure of the sample, to adjust
To the tightness of the sample holder.
Offer through-hole in the fixed plate 323, the first end of the moving lever 322 pass through the through-hole and with the folder
The back side connection for holding plate 321, can adjust the position of the grip block 321 by the second end of the moving lever 322.Specifically
Ground, the back side of the grip block 321 and the first end of the moving lever 322 can be equipped with mutually matched screw thread, to realize
The connection of the first end of moving lever 322 and the back side of the grip block 321 is stated, in other cases, the of the moving lever 322
One end is also possible to realize the connection with the back side of the grip block 321 by other means, such as buckle is fixed, does not influence
The beneficial effect that the utility model obtains.
The groove 321c of the clamping piece 320 of two of the stretching device 300 is oppositely arranged, the fixed link 310
Both ends are fixed respectively in the fixed plate 323 of two clamping pieces 320, and the relative position between two clamping pieces 320 is made
It is fixed.Specifically, the quantity of the fixed link 310 can be one, be also possible to more, such as four or more, not influence
The obtainable beneficial effect of the utility model.In the following, in conjunction with Fig. 2 and Fig. 3, it is detailed to the course of work of the testing equipment 200
It introduces.
During carrying out electric branch test to the sample, silicone oil is injected inside the device housings 210, it is described
Stretching device 300 is completely immersed in the silicone oil, the both ends of the sample respectively by two 320 stable holdings of clamping piece,
Each clamping piece 320 clamps the examination by the groove 321c on the grip block 321 and casting die bar 321a
Sample can uniformly be contacted for the casting die bar 321a with the surface of the sample, can be cooperated with the groove 321c with reality
Now to the stable holding of the sample.Also, it can also be by adjusting the adjusting bolt 321b to control to the specimen holder
The tightness held.The first electrode 231 of the pressurizing device 230 connects the high electrode of the sample, and second electrode 232 connects
The low electrode of the sample, the height of the pressurizing device 230 are higher than the upper surface of the silicone oil.By adjusting two folders
The moving lever 322 of gripping member 320 is obtained the test of the sample by described image acquisition device 220 to stretch the sample
Image, to be analyzed according to the trial image got the sample.
Preferably, the fixed link 310 can be epoxy resin fixed link, and the moving lever 322 can be nylon stud,
The adjusting bolt 321b can be nylon bolt, to prevent due to the fixed link 310, the moving lever 322 or described
The case where adjusting bolt 321b conduction and test result caused to malfunction.
Preferably, the screw hole passes through the screw hole perpendicular to the groove 321c, described one end for adjusting bolt 321b
It is pierced by the inner wall of the groove 321c, the other end protrudes the surface of the grip block 321.
It is highly preferred that the quantity of the adjusting bolt 321b of each grip block 321 can be two, described in two
It adjusts bolt 321b and compresses the casting die bar 321a from both ends respectively, make the casting die bar 321a and the contact of the sample more
Uniformly, the stability to the sample holder is improved.It is to be appreciated that in other cases, the tune of each grip block 321
The quantity of section bolt 321b is also possible to one or more, does not influence the obtainable beneficial effect of the utility model.
Preferably, be additionally provided with adjusting nut 323a in the fixed plate 323, the inside of the adjusting nut 323a with it is described
The side of moving lever 322 is equipped with mutually matched screw thread, and the adjusting nut 323a is installed in rotation on the fixation
The surface of plate 323, the first end of the moving lever 322 pass through the adjusting nut 323a and the through-hole with the grip block
321 back side connection.By rotating the adjusting nut 323a, the moving lever 322 can be driven to move forward or back, to control
Grip block 321 processed is moved.
The stretching device and testing equipment of the test of insulating materials electric branch disclosed in the utility model embodiment, pass through clamping
The casting die bar and groove of part cooperate, and realize effective clamping in tension test to sample, and by two clamping piece phases
Mutually cooperation to be to stretch the sample, solve in the prior art because frictional force it is insufficient caused by sample slippage,
Stable holding during electric branch test to sample is realized, the controllability of the stretch ratio of sample is effectively improved,
Improve the reliability of test result.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (10)
1. a kind of stretching device of insulating materials electric branch test, which is characterized in that including fixed link and two clamping pieces；
Each clamping piece includes grip block, moving lever and fixed plate；The grip block is equipped with casting die bar, described for adjusting
The screw hole for adjusting bolt and cooperate with the adjusting bolt of casting die bar, the front of the grip block are also provided with groove, institute
Casting die bar to be stated to be placed in the groove, described one end for adjusting bolt passes through the screw hole and connect with the side of the casting die bar,
The side of the casting die bar is also used to cooperate with the groove to clamp sample；
Offer the through-hole with moving lever cooperation in the fixed plate, one end of the moving lever pass through the through-hole and with
The back side of the grip block connects；
The groove of the grip block of two clamping pieces is oppositely arranged, the both ends of the fixed link respectively with two clamping pieces
Fixed plate connection.
2. stretching device as described in claim 1, which is characterized in that the screw hole is perpendicular to the groove；The adjusting spiral shell
One end of bolt passes through the screw hole, and the other end protrudes the surface of the grip block.
3. stretching device as claimed in claim 2, which is characterized in that the adjusting bolt quantity of each grip block setting is
Two, and the quantity of the screw hole of each grip block setting is accordingly two；The one of each adjusting bolt
End is connect across the corresponding screw hole with the side of the casting die bar.
4. stretching device as described in claim 1, which is characterized in that the direction phase in the direction of the casting die bar and the groove
Together.
5. stretching device as described in claim 1, which is characterized in that the fixed plate is additionally provided with adjusting nut, the movement
The side of bar is equipped with external screw thread with the screw-internal thread fit with the adjusting nut；The adjusting nut is rotatably disposed within described solid
The surface of fixed board, described one end of the moving lever pass through the adjusting nut and the through-hole with the back side with the grip block
Connection.
6. stretching device as described in claim 1, which is characterized in that the fixed link is epoxy resin fixed link.
7. stretching device as described in claim 1, which is characterized in that the moving lever is nylon stud.
8. stretching device as described in claim 1, which is characterized in that the adjusting bolt is nylon bolt.
9. a kind of testing equipment of insulating materials electric branch test, which is characterized in that including device housings, image collecting device,
Pressurizing device and stretching device as claimed in any one of claims 1 to 8；
The stretching device is placed in inside the device housings；Described image acquisition device is set to the top of the stretching device,
For acquire test during sample image；The pressurizing device includes first electrode and second electrode, the first electrode
For connecting the high electrode of the sample, the second electrode is used to connect the low electrode of the sample.
10. testing equipment as claimed in claim 9, which is characterized in that described image acquisition device includes microscope and image
Processor；The microscope is set to above the stretching device, and described image processor is used to acquire institute by the microscope
State the image of sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820441392.9U CN208239533U (en) | 2018-03-29 | 2018-03-29 | The stretching device and testing equipment of insulating materials electric branch test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820441392.9U CN208239533U (en) | 2018-03-29 | 2018-03-29 | The stretching device and testing equipment of insulating materials electric branch test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208239533U true CN208239533U (en) | 2018-12-14 |
Family
ID=64585930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820441392.9U Expired - Fee Related CN208239533U (en) | 2018-03-29 | 2018-03-29 | The stretching device and testing equipment of insulating materials electric branch test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208239533U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044868A (en) * | 2020-01-17 | 2020-04-21 | 福建农林大学 | Insulation material electric tree aging device and working method thereof |
| CN111308294A (en) * | 2020-04-02 | 2020-06-19 | 西安交通大学 | Electric branch test device made of silicon rubber material for cable accessories and sample manufacturing method |
-
2018
- 2018-03-29 CN CN201820441392.9U patent/CN208239533U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044868A (en) * | 2020-01-17 | 2020-04-21 | 福建农林大学 | Insulation material electric tree aging device and working method thereof |
| CN111308294A (en) * | 2020-04-02 | 2020-06-19 | 西安交通大学 | Electric branch test device made of silicon rubber material for cable accessories and sample manufacturing method |
| WO2021197449A1 (en) * | 2020-04-02 | 2021-10-07 | 西安交通大学 | Electrical tree test device for silicone rubber material for cable accessory and method for making sample |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 |