CN107238456A - A kind of disconnecting switch clamping force test fixture - Google Patents
A kind of disconnecting switch clamping force test fixture Download PDFInfo
- Publication number
- CN107238456A CN107238456A CN201710348035.8A CN201710348035A CN107238456A CN 107238456 A CN107238456 A CN 107238456A CN 201710348035 A CN201710348035 A CN 201710348035A CN 107238456 A CN107238456 A CN 107238456A
- Authority
- CN
- China
- Prior art keywords
- press section
- pressure sensor
- test fixture
- clamping force
- disconnecting switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention provides a kind of disconnecting switch clamping force test fixture, including cross section arched the first press section and the second press section, the bowstring part of two press sections is oppositely arranged, between be provided with pressure sensor, nipple is provided with first stress surface of pressure sensor, screwed hole is provided with the second stress surface, pressure sensor and the second press section are fixedly linked by fastener, rotational structure is provided with second press section, fastener can be made corresponding with screwed hole by rotating with after the connection of the first press section in pressure sensor.The beneficial effects of the present invention are：After pressure sensor is connected with the first press section, fastener can realize the connection of the second press section and pressure sensor in rotational structure by rotating on corresponding with pressure sensor upper screwed hole.The setting of rotational structure weakens the precession angle of pressure sensor for fixing the influence of the second press section using fastener, it is ensured that the assembly precision of test fixture, reduces measurement error.
Description
Technical field
The present invention relates to a kind of disconnecting switch clamping force test fixture.
Background technology
Current high-voltage alternating current isolating switch product, such as scissor disconnecting switch, clamp type disconnecting switch are being assembled
During into rear progress delivery test, it is required to measure the clamping force between its dynamic and static contact, being at this moment accomplished by one kind can
Simulate the clamping force measuring device of static contact profile.Authorization Notice No. is CN103217245B, and authorized announcement date is
2016.03.09 Chinese invention patent discloses a kind of disconnecting switch and clamps force measuring device, and it is equal that the device includes cross section
Arched the first press section and the second press section, the bowstring parts of two press sections is oppositely arranged, between be provided with pressure sensing
Device, two stress surfaces of pressure sensor are fixedly connected with the first press section and the second press section respectively, specifically pressure sensing
Nipple is come with one stress surface of device, the screwed hole of three circumference uniform distributions, assembling are come with another stress surface
When pressure sensor is fixed on the first press section first with nipple, then the second press section is fixed using screw
It is to be provided with fixing hole corresponding with nipple, the second press section to set on this first press section on pressure sensor
There are three screw perforations corresponding with pressure sensor upper screwed hole.
After the completion of assembling, the outer peripheral face of the first press section and the second press section constitutes a circumference, so just simulates quiet
The profile of contact, the moving contact being just similar under truth when both sides moving contact applies pressure to two press sections extrudes stationary contact
Head, so as to complete the measurement of clamping force.Found in use, due to needing first to install pressure sensor, pressure sensor is installed
Cheng Hou, three screwed holes thereon must be corresponding with the screw perforation on the second press section, could be fixed on the second press section
On pressure sensor, otherwise hole is once staggered, and will be unable to fix the second press section.Meanwhile, pressure sensor screws in first and extruded
Depth in portion will influence the cylindricity of the first press section and the circumference of the second press section composition after the completion of assembling, pressure sensing
Device screw-in depth is excessive or too small all will be unable to the most real static contact profile of simulation.
Therefore, when pressure sensor need to meet screwed hole and the screw perforation on the second press section to it is corresponding when its is each
The angle of rotation must all be 120 degree, in practical application, and the nipple of the pressure sensor used is typically M4 spiral shell
Line, pitch is 0.7mm, and when pressure sensor rotates 120 degree, the length of its precession is 1/3rd of 0.7mm, is
0.23mm, therefore pressure sensor is during precession, the influence to above-mentioned circle diameter is 0.23,0.46,0.7mm, and
The diameter tolerance of true static contact is general all within 0.05mm, considerably beyond this allowable tolerance, therefore by the first extruding
The circle diameter that portion and the second press section are constituted can not be controlled accurately, then clamping force is simultaneously as measured by the measurement apparatus
It is not most real, there is larger measurement error.
The content of the invention
It is an object of the invention to provide a kind of disconnecting switch that can reduce measurement error clamping force test fixture.
In order to solve the above-mentioned technical problem, the present invention is adopted the following technical scheme that：
A kind of disconnecting switch clamping force test fixture, including cross section arched the first press section and the second press section,
The bowstring part of two press sections is oppositely arranged, between be provided with pressure sensor, pressure sensor has the first stress surface and the
It is provided with the nipple for being fixedly connected with the first press section, the second stress surface and sets on two stress surfaces, the first stress surface
The screwed hole for being fixedly connected with the second press section is equipped with, pressure sensor and the second press section pass through fastener stationary phase
Even, it is provided with the second press section for supplying fastener relative to the rotational structure of pressure sensor central rotation, the rotation knot
Structure can make fastener corresponding with the screwed hole by rotating with after the connection of the first press section in pressure sensor.
The rotational structure is the long arc-shaped holes being opened on the second press section, the fastener be through long arc-shaped holes with
The bolt that screwed hole coordinates.
The fastener includes fastening block and fastening bolt, offers on fastening block for corresponding with the screwed hole the
One bolt penetration hole, the rotational structure is the circular hole being arranged concentrically with sensor being opened on the second press section, and fastening block can
What is rotated is assemblied in the circular hole.
The circular hole is ladder circular hole, and fastening block is assemblied in the aperture of ladder circular hole, and the fastener also includes setting
Being used in the macropore of ladder circular hole compresses to be provided with for corresponding with the first bolt penetration hole on the pressing plate of fastening block, pressing plate
Second bolt penetration hole.
It is provided with first press section for the joint fixing hole with the cooperation of the nipple of pressure sensor, the joint
Fixing hole is made up of the endoporus for the hard thread bush being fixed on the first press section.
It is further fixed on carrying out spacing jackscrew for new designs of threaded joints in the endoporus of hard thread bush.
Disconnecting switch is also included being fixed on being used on the first press section through the second press section with clamping force test fixture
The lead that second press section is oriented to and supported.
Lead perforation is provided with second press section, lead perforation is elongated hole.
First press section is provided at both ends with for limiting the limited block that the second press section is moved axially along the first press section.
It is provided with the limited block for disconnecting switch to be fixed into pinnacled fixed structure with clamping force test fixture.
The beneficial effects of the present invention are：It is used for due to being provided with the second press section for fastener relative to pressure sensing
The rotational structure of device central rotation, so after pressure sensor and the first press section, which are realized, to be connected, screw thread on pressure sensor
Hole may rotate to arbitrary position, now fastener can in rotational structure by itself relative in pressure sensor
The rotation of the heart so that on corresponding with pressure sensor upper screwed hole, so as to realize the connection of the second press section and pressure sensor.
The setting of rotational structure weakens the precession angle of pressure sensor for fixing the influence of the second press section using fastener, i.e.,
For the influence for the circle diameter being made up of the first press section and the second press section, by reasonably designing, it is possible to achieve pressure
Force snesor electrodeless regulation in the range of 360 degree, fastener is not affected finally and fixes the second press section, survey is thereby may be ensured that
The assembly precision of trial work dress, reduces measurement error.
Brief description of the drawings
Fig. 1 is the use state figure of the embodiment 1 of disconnecting switch clamping force test fixture in the present invention；
Fig. 2 is Fig. 1 vertical view cut away view；
Fig. 3 is the partial enlarged drawing in Fig. 2；
Fig. 4 is Fig. 1 front view；
Fig. 5 is Fig. 1 main view cut away view；
Fig. 6 is the three-dimensional structure diagram of the first press section；
Fig. 7 is the main view cut away view of the first press section；
Fig. 8 is the three-dimensional structure diagram of the second press section；
Fig. 9 is the main view cut away view of the second press section；
Figure 10 is the three-dimensional structure diagram of lead；
Figure 11 is the front view of lead；
Figure 12 is the structure chart of pressing plate；
Figure 13 is the structure chart of fastening block；
Figure 14 is the structure chart of pressure sensor；
Figure 15 is Figure 14 right view；
Figure 16 is the three-dimensional structure diagram of hard thread bush；
Figure 17 is the main view cut away view of hard thread bush；
Figure 18 is the vertical view cut away view of disconnecting switch clamping force test fixture embodiment 2；
Figure 19 is Figure 18 front view；
Figure 20 is the structure chart of the second press section in Figure 19.
In figure：1. the first conducting rod；2. the second conducting rod；3. cylinder；31. the first fixing hole；32. the first press section；33.
Spacing cylinder；34. the second fixing hole；35. the 3rd fixing hole；36. the 4th fixing hole；4. the second press section；41. the first perforation；
42. the second perforation；43. long arc-shaped holes；5. pressure sensor；51. sensor signal lines；52. nipple；53. screwed hole；6.
Lead；61. guide support section；62. canned paragraph；63. limited step；7. hard thread bush；71. the 5th fixing hole；72. coordinate
Step；73. large-diameter thread；8. jackscrew；9. fastening block；91. the first bolt penetration hole；10. pressing plate；101. the second bolt penetration hole；
11. the first contact；12. the second contact；13. fastening bolt；14. fastening screw；15. fixed plate；16. nut.
Embodiment
Disconnecting switch is with the embodiment 1 of clamping force test fixture as shown in Fig. 1 ~ Figure 17, and the test fixture is by an aluminium
Rod is split to form with wire cutting again after turnery processing, and the material red copper of the hardness of aluminium bar and true static contact is close, not rapid wear
Hinder moving contact, therefore can preferably simulate the working condition of true static contact, and price is relatively cheap.Aluminium bar after cutting
Including the second arched press section 4 of cylinder 3 and cross section, cylinder 3 include the first arched press section 32 of cross section and
Cylinder positioned at the two ends of the first press section 32（I.e. spacing cylinder 33）.The bowstring portion of first press section 32 and the second press section 4
Point be oppositely arranged, between be provided with pressure sensor 5, pressure sensor 5 has the first stress surface and the second stress surface, the first stress
Coming with to come with the nipple 52 for being fixedly connected with the first press section 32, the second stress surface on face is used for and second
The screwed hole 53 that press section 4 is fixedly connected, screwed hole 53 has three and uniform around the center circumferential of pressure sensor 5.
It is provided with first press section 32 for the joint fixing hole with the cooperation of the nipple 52 of pressure sensor 5, by
It is aluminium in the material of cylinder 3, and nipple 52 is M4 screw thread, its pitch is that 0.7mm, height of thread are 0.35mm,
Under stressing conditions, the screwed hole on aluminium bar is easily damaged, also screw thread easily on damage pressure sensor, causes test fixture
Failure.In order to avoid such case, a hard thread bush 7 is first fixed on the first press section 32, is this first press section 32
On offer the 3rd fixing hole 35 for installing hard thread bush 7, the endoporus of hard thread bush 7 is that the 5th fixing hole 71 is constituted
The joint fixing hole coordinated with nipple 52, hard thread bush 7 is made of intensity and the higher material of hardness, and its screw thread is strong
Degree is high, is hardly damaged, and its outside is connected using large-diameter thread 73 with the first press section 32, and is designed with one and larger matches somebody with somebody
Close step 72 and undertake normal pressure.
By in the fixing hole 71 of 52 precession of nipple the 5th of pressure sensor 5, during precession, constantly measurement by
The diameter for the circumference that first press section 32 and the second press section 4 are constituted, when tolerance is in the range of 0.05mm, illustrates that pressure is passed
Sensor 5 has been mounted to position, is now limited in the other end installation one of the 5th fixing hole 71 for new designs of threaded joints 52
The jackscrew 8 of position, so as to limit the screw-in depth of nipple 52, and causes gapless at screw thread, it is to avoid nipple 52 is rocked,
Ensure measurement accuracy, increase the service life.
After pressure sensor 5 is installed, the second press section 4 is installed on pressure sensor 5 by fastener.This is tight
Firmware includes being provided with fastening block 9, pressing plate 10 and fastening bolt 13, the second press section 4 to be worn for assembling the first of fastener
Hole 41, first perforation 41 is ladder circular hole, and fastening block 9 is assemblied in the aperture of ladder circular hole, and pressing plate 10 is assemblied in ladder circle
In the macropore in hole, pressing plate 10 is pressed on the step surface of fastening block 9 and ladder circular hole.Fastening block 9 and pressing plate 10 and pressure
Sensor 5 offers three first bolt penetration holes 91 corresponding with the position of screwed hole 53, pressing plate to be coaxially disposed on fastening block 9
Three second bolt penetration holes 101 corresponding with the position of the first bolt penetration hole 91 are offered on 10, the position of pressure sensor 5 is determined
After, pass through rotational fastener block 9 and pressing plate 10, you can by the first bolt penetration hole 91 and the second bolt penetration hole 101 and pressure sensing
The correspondence of screwed hole 53 of device, then using fastening bolt 13 with regard to the fixation of the second press section 4 and pressure sensor can be completed.Therefore
First perforation 41 namely be provided on the second press section be used for for fastener relative to the rotation knot that center sensor rotates
Structure, can just be freely rotatable fastener by the rotational structure, therefore no matter the screwed hole 53 on pressure sensor rotates
To where, fastener by itself rotation can be corresponding.
Because the second press section 4 is entirely to be fixed on by fastener on pressure sensor, itself also has certain weight
Power, is tilted down under normal circumstances, and this will influence measurement accuracy.In order to balance the gravity of the second press section,
Support and be oriented to, lead 6 is installed on the second press section 4, the lead 6 includes guide support section 61 and solid
Determine to be provided with the second fixing hole 34 on section 62, the first press section 32, canned paragraph 62 is threadedly coupled with the second fixing hole 34, second squeezes
The second perforation 42 is provided with splenium 4, guide support section 61 is through the second perforation 42, and the second perforation 42 is elongated hole.This is
Because there are two, corresponding hard spiral shell in the first from left right side of pressure sensor one set between the first press section 32 and the second press section 4
Line set, fastener, lead etc. also have two sets, during actual measurement, when the pressure sensor of side is first pressurized, and opposite side will be to
Outer movement, i.e., " tilt ", and at this moment the limited step 63 on lead 6 will play position-limiting action, it is to avoid this side is excessive " to stick up
Rise ".Simultaneously as the perforation of guide support section 61 is elongated hole, therefore the elongated hole can ensure that the second press section has micro rolling
Move and be unlikely to by not dead.In addition, the spacing cylinder 33 of the left and right sides of the first press section 32 plays a part of limited block, so that will
Second press section 4 is limited in the cell body on cylinder 3, prevents its axial movement along the first press section.
Disconnecting switch is with the operation principle of clamping force test fixture：Fixed in use, real static contact can be simulated
Situation, so that whole test fixture is suspended on a cross-arm in test workshop, therefore is provided with spacing cylinder 33
For test fixture to be fixed into pinnacled fixed structure, the fixed structure is the first fixing hole 31, is consolidated with steel wire through first
Determine hole 31, the other end of steel wire is fixed on cross-arm.But in fact, due to scissor disconnecting switch or clamp type
The height of disconnecting switch is all higher, does not have the position for suitably fixing cross-arm in workshop, now can be first solid by test fixture
It is scheduled on the conducting rod of side, i.e., the first press section 32 is fixed on two the first conducting rods 1.Specifically the first press section 32
Back of a bow part be provided with the 4th fixing hole 36, using fastening screw 14, fixed plate 15 and nut 16 by the first conducting rod 1 and the
One press section 32, which is realized, to be fixed, it is ensured that the first contact 11 on the first conducting rod 1 connects with the back of a bow part of the first press section 32
Touch.
During test, the sensor signal lines 51 of pressure sensor 5 are connected to display（Not shown in figure）On, first squeezes
Splenium 32 is moved with the first conducting rod 1, when the second contact 12 that the second conducting rod 2 is moved to thereon clamps test fixture, i.e.,
The size of clamping force can be observed by display, the test of clamping force is completed.The test fixture of the present invention is relative to existing skill
For art, whole test fixture is in assembling, and pressure sensor can arbitrarily be rotated in the range of 360 degree, not by 120 degree of rotations
The limitation of angle, at the same after pressure sensor is installed, the rotation by fastener relative to pressure sensor center, i.e.,
The bolt penetration hole on fastener can be made corresponding with the screw thread hole site on pressure sensor, realize and fix, substantially increase test
The assembly precision of frock, it is ensured that the authenticity of measured clamping force, measurement error significantly reduces.
Disconnecting switch with the embodiment 2 of clamping force test fixture as shown in Figure 18 ~ Figure 20, in this embodiment, for will
The fastener that second press section 4 is fixed on the first press section only has fastening bolt 13, same as the prior art, fastening bolt 13
There are three, respectively three screwed holes on corresponding pressure sensor, the difference is that the bolt penetration hole set on the second press section is
Elongated hole, i.e. long arc-shaped holes 43, now after pressure sensor is assemblied on the first press section, long arc-shaped holes 43 are to be easier
Can be corresponding with pressure sensor upper screwed hole, though electrodeless regulation can not be realized, pressure can be adapted to a certain extent
The precession depth of force snesor, improves the assembly precision of test fixture, reduces measurement error.In this embodiment, long arc-shaped holes
43 be to be passed through for fastener and can make it relative to the rotational structure of pressure sensor central rotation.
In other embodiment of the disconnecting switch with clamping force test fixture：The limited block at the first press section two ends can not
It is cylinder, such as can is tetragonal body；Fixed structure on limited block can not be hole, such as be hanger；First press section
Two ends can also be not provided with limited block；Lead on second press section, which is perforated, can not be elongated hole, but circular port；Second
Lead can be not provided with press section；Jackscrew can be not provided with the endoporus of hard thread bush；Can also on first press section
Hard thread bush is not provided with, but joint fixing hole is directly processed on the first press section；Fastener can not include pressing plate,
At this moment fastening block can come with end face of flange；When the screwed hole on pressure sensor has two or four, fastening block, pressing plate
On the corresponding long arc-shaped holes also having in two or four, or the second press section of bolt penetration hole it is corresponding also have two or
Four.
Claims (10)
1. a kind of disconnecting switch clamping force test fixture, including cross section arched the first press section and the second extruding
Portion, the bowstring parts of two press sections is oppositely arranged, between be provided with pressure sensor, pressure sensor have the first stress surface and
It is provided with second stress surface, the first stress surface on the nipple for being fixedly connected with the first press section, the second stress surface
The screwed hole for being fixedly connected with the second press section is provided with, pressure sensor and the second press section pass through fastener stationary phase
Even, it is characterised in that：It is provided with second press section for the rotation knot for fastener relative to pressure sensor central rotation
Structure, the rotational structure can make fastener after pressure sensor is connected with the first press section by rotation and the screwed hole pair
Should.
2. disconnecting switch according to claim 1 clamping force test fixture, it is characterised in that：The rotational structure is to open
The long arc-shaped holes on the second press section are located at, the fastener is the bolt coordinated through long arc-shaped holes and screwed hole.
3. disconnecting switch according to claim 1 clamping force test fixture, it is characterised in that：The fastener includes tight
Gu offered on block and fastening bolt, fastening block for the first bolt penetration hole corresponding with the screwed hole, the rotational structure
To be opened in the circular hole being arranged concentrically with sensor on the second press section, fastening block is rotatable to be assemblied in the circular hole.
4. disconnecting switch according to claim 3 clamping force test fixture, it is characterised in that：The circular hole is ladder circle
Hole, fastening block is assemblied in the aperture of ladder circular hole, and the fastener also includes being arranged on being used in the macropore of ladder circular hole
Compress and be provided with the pressing plate of fastening block, pressing plate for the second bolt penetration hole corresponding with the first bolt penetration hole.
5. the clamping force test fixture of the disconnecting switch according to claim 1 ~ 4 any one, it is characterised in that：First squeezes
It is provided with splenium for the joint fixing hole with the cooperation of the nipple of pressure sensor, the joint fixing hole is by being fixed on
The endoporus of hard thread bush on first press section is constituted.
6. disconnecting switch according to claim 5 clamping force test fixture, it is characterised in that：The endoporus of hard thread bush
In be further fixed on carrying out spacing jackscrew for new designs of threaded joints.
7. the clamping force test fixture of the disconnecting switch according to claim 1 ~ 4 any one, it is characterised in that：Keep apart
Pass is also included being fixed on the first press section through the second press section with clamping force test fixture and is used to enter the second press section
The lead that row is oriented to and supported.
8. disconnecting switch according to claim 7 clamping force test fixture, it is characterised in that：Set on second press section
There is lead perforation, lead perforation is elongated hole.
9. the clamping force test fixture of the disconnecting switch according to claim 1 ~ 4 any one, it is characterised in that：First squeezes
Splenium is provided at both ends with for limiting the limited block that the second press section is moved axially along the first press section.
10. disconnecting switch according to claim 9 clamping force test fixture, it is characterised in that：Set on the limited block
It is equipped with for disconnecting switch to be fixed into pinnacled fixed structure with clamping force test fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348035.8A CN107238456B (en) | 2017-05-17 | 2017-05-17 | A kind of disconnecting switch clamping force test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348035.8A CN107238456B (en) | 2017-05-17 | 2017-05-17 | A kind of disconnecting switch clamping force test fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107238456A true CN107238456A (en) | 2017-10-10 |
| CN107238456B CN107238456B (en) | 2019-09-13 |
Family
ID=59984516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710348035.8A Active CN107238456B (en) | 2017-05-17 | 2017-05-17 | A kind of disconnecting switch clamping force test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107238456B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406379A (en) * | 2018-12-18 | 2019-03-01 | 广东电网有限责任公司 | A kind of contact material corrosion test tool and system |
| CN111024287A (en) * | 2019-12-11 | 2020-04-17 | 广西电网有限责任公司桂林供电局 | Isolator touches and indicates comprehensive clamp force testing arrangement |
| CN111337173A (en) * | 2020-02-28 | 2020-06-26 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | System for measuring locking force of wedge-shaped packaging slot of electronic module |
| CN112880896A (en) * | 2021-01-05 | 2021-06-01 | 国网内蒙古东部电力有限公司电力科学研究院 | Isolating switch contact finger pressure sensor, tester and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001235379A (en) * | 2000-02-25 | 2001-08-31 | Toshiba Tungaloy Co Ltd | Socket for measuring axial force incorporated with ultrasonic probe |
| CN201628603U (en) * | 2009-11-30 | 2010-11-10 | 河南平高电气股份有限公司 | Clamping force testing device for moving contact and fixed contact of isolation switch |
| CN103217245A (en) * | 2013-03-27 | 2013-07-24 | 国家电网公司 | Clamping force measurement device used for isolating switch |
| CN103557981A (en) * | 2013-11-11 | 2014-02-05 | 大连高压开关电器有限公司 | Device for detecting pressure between contacts of disconnecting switch |
| CN106289617A (en) * | 2016-10-27 | 2017-01-04 | 湖南长高高压开关有限公司 | Flos Mume fingertip type disconnecting switch clamping force measurement apparatus |
| CN106346276A (en) * | 2016-11-11 | 2017-01-25 | 上海第机床厂有限公司 | Clamping device of perforated plate |
| CN106441688A (en) * | 2016-10-27 | 2017-02-22 | 湖南长高高压开关有限公司 | Adjustable isolating switch clamping force measuring device |
-
2017
- 2017-05-17 CN CN201710348035.8A patent/CN107238456B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001235379A (en) * | 2000-02-25 | 2001-08-31 | Toshiba Tungaloy Co Ltd | Socket for measuring axial force incorporated with ultrasonic probe |
| CN201628603U (en) * | 2009-11-30 | 2010-11-10 | 河南平高电气股份有限公司 | Clamping force testing device for moving contact and fixed contact of isolation switch |
| CN103217245A (en) * | 2013-03-27 | 2013-07-24 | 国家电网公司 | Clamping force measurement device used for isolating switch |
| CN103557981A (en) * | 2013-11-11 | 2014-02-05 | 大连高压开关电器有限公司 | Device for detecting pressure between contacts of disconnecting switch |
| CN106289617A (en) * | 2016-10-27 | 2017-01-04 | 湖南长高高压开关有限公司 | Flos Mume fingertip type disconnecting switch clamping force measurement apparatus |
| CN106441688A (en) * | 2016-10-27 | 2017-02-22 | 湖南长高高压开关有限公司 | Adjustable isolating switch clamping force measuring device |
| CN106346276A (en) * | 2016-11-11 | 2017-01-25 | 上海第机床厂有限公司 | Clamping device of perforated plate |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406379A (en) * | 2018-12-18 | 2019-03-01 | 广东电网有限责任公司 | A kind of contact material corrosion test tool and system |
| CN109406379B (en) * | 2018-12-18 | 2024-05-28 | 广东电网有限责任公司 | Contact material corrosion test tool and system |
| CN111024287A (en) * | 2019-12-11 | 2020-04-17 | 广西电网有限责任公司桂林供电局 | Isolator touches and indicates comprehensive clamp force testing arrangement |
| CN111337173A (en) * | 2020-02-28 | 2020-06-26 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | System for measuring locking force of wedge-shaped packaging slot of electronic module |
| CN111337173B (en) * | 2020-02-28 | 2021-11-19 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | System for measuring locking force of wedge-shaped packaging slot of electronic module |
| CN112880896A (en) * | 2021-01-05 | 2021-06-01 | 国网内蒙古东部电力有限公司电力科学研究院 | Isolating switch contact finger pressure sensor, tester and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107238456B (en) | 2019-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107238456A (en) | A kind of disconnecting switch clamping force test fixture | |
| CN206710282U (en) | A kind of mechanics test device suitable for small-sized berry | |
| CN204128679U (en) | A kind of acceleration transducer stationary installation for measuring channel vibration | |
| CN104482822B (en) | A kind of logical thread gage device | |
| CN104476243A (en) | Completed surface part clamping installation device | |
| CN105547828A (en) | Three-point bending test apparatus | |
| CN112857979A (en) | Test fixture for simple solid support composite material compression test piece | |
| CN107014617B (en) | Detection clamp for assembling outer ring grooved self-lubricating bearing | |
| CN211236121U (en) | Automatic ICT test fixture suitable for various PCBAs | |
| CN103558015B (en) | General purpose rubber lining testboard bay | |
| CN106402178B (en) | Thin-walled assembles device without filling slot self-lubricating aluminium alloy oscillating bearing | |
| CN104455017A (en) | Circumferential radial force loaded bearing pedestal | |
| CN204165823U (en) | A kind of multifunctional displacement sensor attachment mechanism | |
| CN205665298U (en) | High voltage measurement emplacement machinery hand device | |
| CN216207398U (en) | Bolt anti vibration performance testing device | |
| CN207636404U (en) | A kind of room temperature strip-line test methods dielectric properties tester pressure fixture | |
| CN204214429U (en) | Measure connecting rod internal bore profile degree supporting and positioning device | |
| CN110940603B (en) | Adjustable auxiliary test device for detecting clamping piece hardness | |
| CN208350283U (en) | A kind of power type torque spanner tester | |
| CN113567074A (en) | Device and method for testing vibration resistance of bolt | |
| CN209440044U (en) | A kind of Bearing testing fixture convenient for adjusting | |
| CN209296456U (en) | One kind being based on scleroscopic hardness test frock clamp | |
| CN202562414U (en) | Axle brake shoe assembly excircle diameter detection device | |
| CN205091117U (en) | Online check gauge of relief valve | |
| CN105715645A (en) | Device with high-temperature pressing comprehensive function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |