CN111024287A - Isolator touches and indicates comprehensive clamp force testing arrangement - Google Patents
Isolator touches and indicates comprehensive clamp force testing arrangement Download PDFInfo
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- CN111024287A CN111024287A CN201911269866.1A CN201911269866A CN111024287A CN 111024287 A CN111024287 A CN 111024287A CN 201911269866 A CN201911269866 A CN 201911269866A CN 111024287 A CN111024287 A CN 111024287A
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- pressure sensing
- collecting device
- pressure sensor
- side pressure
- clamping force
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- 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
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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
- G01M13/00—Testing of machine parts
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a device for testing the comprehensive clamping force of a contact finger of an isolating switch. In the embodiment of the invention, the upper stress surface and the lower stress surface are designed by using a modular principle, so that different stress surfaces can trigger corresponding sensors to acquire data, the operation is simple, and the data result can be conveniently and quickly acquired.
Description
Technical Field
The invention relates to the technical field of equipment detection in an electric power system, in particular to a testing device for comprehensive clamping force of a contact finger of an isolating switch.
Background
The isolating switch is widely applied to the electrical industry, and due to the large use amount and high requirement on working reliability, workers must regularly check the isolating switch strictly according to regulations. Outdoor isolator especially needs to pay attention to, because the condition is abominable under the open-air condition, the contact finger spring is easily influenced by humid air, dust and then produces corrosion, deformation, fracture, causes natural damage more easily than indoor isolator, and the contact finger packing force reduces, causes isolator bad contact, and the contact finger contact surface generates heat, causes power failure. According to the requirements of ' inspection test regulations of electrical equipment ' of southern power grid company, the period of inspecting the conductive circuit of the isolating switch is once in 6 years, wherein the content of the inspection item (3) is ' no corrosion, deformation and fracture of a contact finger spring ', and the pressing force of the contact finger meets the requirements of manufacturers '.
The contact finger clamping force tester that can acquire at present only tests to the contact of simplex structure, can't satisfy current isolator contact test requirement, has following problem: for example, the existing contact finger clamping force tester does not have the modularized design principle, so that the test result is not accurate and reliable enough, and the test range is not comprehensive enough. The operation mode of the tester is difficult, and the result is not convenient for workers to check quickly, so that the maintenance efficiency is influenced.
Disclosure of Invention
The invention aims to provide a device for testing the comprehensive clamping force of a contact finger of an isolating switch, which can solve the problems that the existing tester only tests a contact with a single structure, the test result is inaccurate and reliable, and the operation mode is inconvenient.
Correspondingly, the embodiment of the invention provides a device for testing the comprehensive clamping force of a contact finger of an isolating switch, which comprises an upper stress surface, a lower stress surface, a left pressure sensing and collecting device, a right pressure sensing and collecting device, a left pressure sensor and a right pressure sensor, wherein:
the upper stress surface and the lower stress surface are mutually overlapped to form a stress stick, a left pressure sensing and collecting device is fixed on the left side of the stress stick, a left pressure sensor is fixed on the left pressure sensing and collecting device, and the left pressure sensor is tightly attached to the stress stick; a right pressure sensing and collecting device is fixed on the right side of the stressed rod, a right pressure sensor is fixed on the right pressure sensing and collecting device, and the right pressure sensor is tightly attached to the stressed rod;
the left side pressure sensor converts the deformation into electric signal data when sensing the stress deformation to form a first clamping force value, and transmits the first clamping force value to the left side pressure sensing and collecting device;
and the right side pressure sensor converts the deformation into electric signal data when sensing the stress deformation to form a second clamping force value, and transmits the second clamping force value to the left side pressure sensing and collecting device.
The left pressure sensor is tightly attached to the upper stress surface.
The right side pressure sensor is tightly attached to the upper stress surface.
The upper stress surface is fixedly connected with the left pressure sensing and collecting device, and the lower stress surface is connected with the left pressure sensing and collecting device through a movable pin.
The upper stress surface is fixedly connected with the right pressure sensing and collecting device, and the lower stress surface is connected with the right pressure sensing and collecting device through a movable pin.
The left side pressure sensing acquisition device is integrated with a lithium battery power supply unit, an AD sampling unit, an MCU data processing unit and a wireless transmitting and receiving unit.
The right side pressure sensing acquisition device is integrated with a lithium battery power supply unit, an AD sampling unit, an MCU data processing unit and a wireless transmitting and receiving unit.
The invention provides a method for acquiring data by utilizing a modular principle, which is characterized in that an upper stress surface and a lower stress surface are designed, so that different stress surfaces can trigger corresponding sensors to acquire data, the operation is simple, and the data result can be conveniently and quickly acquired. The adjustable structure can be set aiming at different modularization, the size control is realized, and the test requirements of all the disconnecting switch contacts can be met. The pressure acquisition device has an infinite transmission function, and can realize result display and comparative analysis on a mobile phone APP and the like so that a worker can process the result.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a comprehensive clamping force testing device for a contact finger of an isolating switch in an embodiment of the invention;
fig. 2 is a schematic structural diagram of a pressure sensor acquisition device in the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Specifically, fig. 1 shows a schematic structural diagram of a comprehensive clamping force testing device for a contact finger of an isolating switch according to an embodiment of the present invention, where the comprehensive clamping force testing device for a contact finger of an isolating switch includes an upper stress surface (1), a lower stress surface (4), a left pressure sensing and collecting device (3), a right pressure sensing and collecting device (6), a left pressure sensor (2), and a right pressure sensor (5), where:
the upper stress surface (1) and the lower stress surface (4) are mutually overlapped to form a stress stick, a left pressure sensing and collecting device (3) is fixed on the left side of the stress stick, a left pressure sensor (2) is fixed on the left pressure sensing and collecting device (3), and the left pressure sensor (2) is tightly attached to the stress stick; the right side of the stressed stick is fixed with a right side pressure sensing acquisition device (6), a right side pressure sensor (5) is fixed on the right side pressure sensing acquisition device (6), and the right side pressure sensor (5) is tightly attached to the stressed stick.
The left side pressure sensor converts the deformation into electric signal data when sensing the stress deformation to form a first clamping force value, and transmits the first clamping force value to the left side pressure sensing and collecting device;
and the right side pressure sensor converts the deformation into electric signal data when sensing the stress deformation to form a second clamping force value, and transmits the second clamping force value to the left side pressure sensing and collecting device.
Specifically, the left pressure sensor (2) is closely attached to the upper stress surface (1).
Specifically, the right pressure sensor (5) is closely attached to the upper stress surface (1).
Specifically, the upper stress surface (1) is fixedly connected with the left pressure sensing and collecting device (3), and the lower stress surface (4) is connected with the left pressure sensing and collecting device (3) through a movable pin. The left end of the lower stress surface (4) is connected with the left pressure sensing and collecting device (3) through a movable pin, so that the diameter of the upper stress surface and the diameter of the lower stress surface can be adjusted conveniently.
Go up stress surface (1) with right side pressure sensing collection system (6) fixed connection, lower stress surface (4) with right side pressure sensing collection system (6) are through the activity pin junction. The right end of the lower stress surface (4) is connected with the right pressure sensing and collecting device (6) through a movable pin, so that the diameter of the upper stress surface and the diameter of the lower stress surface can be adjusted conveniently.
The movable pin connection can be realized by arranging a plurality of pin holes on the end surfaces of two sides of the lower stress surface (4), arranging a plurality of pin holes on the end surface matched with the right side pressure sensing acquisition device (6) and the lower stress surface (4), matching one pin hole in the plurality of pin holes on the lower stress surface (4) with one pin hole in the plurality of pin holes on the right side pressure sensing acquisition device (6) to adjust a corresponding position relation, and inserting the movable pin into the corresponding pin hole to adjust the diameter of the upper stress surface and the diameter of the lower stress surface; the end face where the left side pressure sensing and collecting device (3) is matched with the lower stress surface (4) is provided with a plurality of pin holes, one of the pin holes in the lower stress surface (4) is matched with one of the pin holes in the left side pressure sensing and collecting device (3) to adjust a corresponding position relation, and the diameter of the upper stress surface and the diameter of the lower stress surface can be adjusted by inserting the movable pin into the corresponding pin hole. The movable pin connection mode is more common in the connection of two components to realize position adjustment, and is not described and listed again.
Fig. 2 shows a schematic structural diagram of a principle of a pressure sensor acquisition device in an embodiment of the present invention, and specifically, the left side pressure sensor acquisition device is integrated with a lithium battery power supply unit, an AD sampling unit, an MCU data processing unit, and a wireless transmitting and receiving unit, where the AD sampling unit communicates with the left side pressure sensor. The right side pressure sensing acquisition device is integrated with a lithium battery power supply unit, an AD sampling unit, an MCU data processing unit and a wireless transmitting and receiving unit, wherein the AD sampling unit is communicated with a right side sensor.
The AD sampling unit realizes analog-to-digital conversion, converts the data of the pressure sensor into digital signals and inputs the digital signals into the MCU data processing unit, the MCU data processing unit is a microcontroller, the MCU data processing unit realizes data processing, the acquired data are sent out based on the wireless transmitting and receiving unit, and the lithium battery power supply unit supplies power for each module needing a power supply.
The diameter of the cylindrical contact of the isolating switch is measured, and the lower stress surface of the isolating switch is adjusted, so that the diameter of a solid cylinder formed by wrapping the upper stress surface and the stress surface is consistent with the diameter of the cylindrical contact of the isolating switch to be measured.
And (4) normally switching on the isolating switch, and confirming the mutual occlusion position of the moving contact and the fixed contact or the male head and the female head of the isolating switch during normal switching on.
The device is placed at the normal closing and meshing position of the switch contact, the isolating switch is closed, and the contact finger of the conductive arm at one side normally clamps the upper stress surface and the lower stress surface of the device.
Through wireless data transmission of the device, the measured conductive arm contact finger clamping force is received on a mobile phone APP or other receiving terminals
The working principle of the invention is as follows: the upper stress surface and the force surface are wrapped to form a solid cylinder, and the diameter of the solid cylinder is adjusted to be consistent with the diameter of the cylindrical contact of the isolating switch to be measured. The isolating switch is normally switched on, the invention is placed at the normal switching-on and meshing position of the switch contact, and the contact finger of the conductive arm at one side of the isolating switch normally clamps the upper stress surface and the lower stress surface of the device. The upper stress surface and the lower stress surface are clamped by the contact fingers of the isolating switch to generate relative displacement, and the clamping force generated by the relative displacement is directly applied to the tightly attached pressure sensor. The pressure sensor is stressed and deformed, simultaneously, the deformation is converted into electric signal data to form a clamping force value, and the pressure sensor transmits the stress value to the pressure sensing acquisition device.
The pressure sensing acquisition device is internally integrated with a lithium battery power supply unit, an AD sampling unit, an MCU data processing unit and a wireless transmitting and receiving unit. The lithium battery power supply unit is an AD sampling unit, the MCU data processing unit and the wireless transmitting and receiving unit provide power supplies. And the AD sampling unit collects the signal data of the pressure sensor and sends the signal data to the MCU data processing unit. The MCU data processing unit receives the pressure sensor signal data collected by the AD sampling unit, and transmits the pressure sensor signal data to the wireless transmitting and receiving unit after processing. And the data is processed by a processing module in the pressure sensing acquisition device and is sent to a mobile phone APP and the like for result display and comparative analysis.
The invention provides a method for acquiring data by utilizing a modular principle, which is characterized in that an upper stress surface and a lower stress surface are designed, so that different stress surfaces can trigger corresponding sensors to acquire data, the operation is simple, and the data result can be conveniently and quickly acquired. The adjustable structure can be set aiming at different modularization, the size control is realized, and the test requirements of all the disconnecting switch contacts can be met. The pressure acquisition device has an infinite transmission function, and can realize result display and comparative analysis on a mobile phone APP and the like so that a worker can process the result.
In addition, the isolating switch contact finger comprehensive clamping force testing device provided by the embodiment of the invention is described in detail, a specific embodiment is adopted herein to explain the principle and the implementation manner of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (7)
1. The utility model provides a clamp force testing arrangement is synthesized to isolator touches finger, a serial communication port, isolator touches finger and synthesizes clamp force testing arrangement is including last stress surface, lower stress surface, left side pressure sensing collection system, right side pressure sensing collection system, left side pressure sensor, right side pressure sensor, wherein:
the upper stress surface and the lower stress surface are mutually overlapped to form a stress stick, a left pressure sensing and collecting device is fixed on the left side of the stress stick, a left pressure sensor is fixed on the left pressure sensing and collecting device, and the left pressure sensor is tightly attached to the stress stick; a right pressure sensing and collecting device is fixed on the right side of the stressed rod, a right pressure sensor is fixed on the right pressure sensing and collecting device, and the right pressure sensor is tightly attached to the stressed rod;
the left side pressure sensor converts the deformation into electric signal data when sensing the stress deformation to form a first clamping force value, and transmits the first clamping force value to the left side pressure sensing and collecting device;
and the right side pressure sensor converts the deformation into electric signal data when sensing the stress deformation to form a second clamping force value, and transmits the second clamping force value to the left side pressure sensing and collecting device.
2. The integrated clamp force testing device for the contact finger of the isolating switch as claimed in claim 1, wherein the left side pressure sensor is closely attached to the upper bearing surface.
3. The integrated clamp force testing device for the contact finger of the isolating switch as claimed in claim 1, wherein the right side pressure sensor is tightly attached to the upper bearing surface.
4. The integrated clamp force testing device for the isolating switch contact finger as claimed in claim 1, wherein the upper bearing surface is fixedly connected with the left side pressure sensing and collecting device, and the lower bearing surface is connected with the left side pressure sensing and collecting device through a movable pin.
5. The integrated clamping force testing device for the contact fingers of the isolating switch as claimed in claim 1, wherein the upper stress surface is fixedly connected with the right pressure sensing and collecting device, and the lower stress surface is connected with the right pressure sensing and collecting device through a movable pin.
6. The device for testing the comprehensive clamping force of the contact finger of the isolating switch as claimed in claim 1, wherein the left side pressure sensing and collecting device is integrated with a lithium battery power supply unit, an AD sampling unit, an MCU data processing unit and a wireless transmitting and receiving unit.
7. The device for testing the comprehensive clamping force of the contact finger of the isolating switch as claimed in claim 1, wherein the right pressure sensing and collecting device is integrated with a lithium battery power supply unit, an AD sampling unit, an MCU data processing unit and a wireless transmitting and receiving unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911269866.1A CN111024287A (en) | 2019-12-11 | 2019-12-11 | Isolator touches and indicates comprehensive clamp force testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911269866.1A CN111024287A (en) | 2019-12-11 | 2019-12-11 | Isolator touches and indicates comprehensive clamp force testing arrangement |
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| CN111024287A true CN111024287A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911269866.1A Pending CN111024287A (en) | 2019-12-11 | 2019-12-11 | Isolator touches and indicates comprehensive clamp force testing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345143A (en) * | 2020-11-13 | 2021-02-09 | 江苏省如高高压电器有限公司 | Clamping force testing tool for isolating switch and testing method thereof |
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| CN110031137A (en) * | 2019-03-15 | 2019-07-19 | 广西电网有限责任公司桂林供电局 | A kind of spring touch finger is comprehensive to compress force checking device |
| CN209432314U (en) * | 2018-12-17 | 2019-09-24 | 广西电网有限责任公司桂林供电局 | A kind of spring touch finger pressing force detection instrument |
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| CN201402191Y (en) * | 2009-03-30 | 2010-02-10 | 湖南长高高压开关集团股份公司 | Clamping force on-line detection device used for high-voltage isolation switch |
| 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 |
| 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 |
| CN206258210U (en) * | 2016-10-27 | 2017-06-16 | 湖南长高高压开关有限公司 | Adjustable disconnecting switch clamps force measuring device |
| CN107238456A (en) * | 2017-05-17 | 2017-10-10 | 河南平高电气股份有限公司 | A kind of disconnecting switch clamping force test fixture |
| CN207866412U (en) * | 2018-03-08 | 2018-09-14 | 山东泰开隔离开关有限公司 | A kind of telescopic disconnecting switch clamping force detector of single armed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345143A (en) * | 2020-11-13 | 2021-02-09 | 江苏省如高高压电器有限公司 | Clamping force testing tool for isolating switch and testing method thereof |
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Application publication date: 20200417 |