CN118392111B - Isolating switch closing angle measuring device - Google Patents
Isolating switch closing angle measuring device Download PDFInfo
- Publication number
- CN118392111B CN118392111B CN202410843109.5A CN202410843109A CN118392111B CN 118392111 B CN118392111 B CN 118392111B CN 202410843109 A CN202410843109 A CN 202410843109A CN 118392111 B CN118392111 B CN 118392111B
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- measurer
- angle
- microprocessor
- resistor
- isolating switch
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- 238000005259 measurement Methods 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 239000012212 insulator Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims 2
- 238000004088 simulation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention relates to the technical field of isolating switch closing angle measurement, in particular to an isolating switch closing angle measurement device. The device comprises a first measurer, a second measurer and a measuring substrate; the first measurer and the second measurer comprise a fixed seat, a rotary table, a microprocessor, a laser range finder, a rotating motor, a rotating angle sensor and a display, wherein the laser range finder, the rotating motor, the rotating angle sensor and the display are respectively connected with the microprocessor; the first measurer further comprises a contact trigger circuit I, and the second measurer further comprises a contact trigger circuit II. The invention realizes the measurement of the angle of the conductive arm when the switching-on contact is just contacted and the angle of the conductive arm when the switching-on is in place, and the measurement is simple and accurate. The contact trigger circuit I and the contact trigger circuit II can accurately detect the on state of the closing contact, and measurement of the angle of the conductive arm is realized. The in-line laser transmitter and the vertical plate can also measure the horizontal state of the conductive arm and provide reference for adjusting the horizontal state.
Description
Technical Field
The invention relates to the technical field of isolating switch closing angle measurement, in particular to an isolating switch closing angle measurement device.
Background
The isolating switch is required to measure the closing angle during overhauling, and mainly comprises a conducting arm angle when a closing contact is just contacted and a conducting arm angle when the closing contact is in place. The existing measuring method mainly comprises a manual measuring method and a rotation angle sensor arranged on a rotary shaft of the isolating switch for measuring. The manual measurement method is complex in operation and large in error. The installation rotation angle sensor is complex, is inflexible to use, and can only detect the rotation angle after closing in place.
The device and the method for measuring the rotation angle of the high-voltage isolating switch disclosed in Chinese patent publication No. CN115265340B convert the measurement of the rotation angle of the worm wheel into the measurement of the rotation angle of the cam, and convert the measurement of the rotation angle of the cam into the measurement of the linear movement distance of the detecting rod, and can intuitively observe the rotation angle, but have complex structure and single function. Then, for example, the chinese patent of the publication CN210374953U discloses a tool for measuring the closing angle of a double-column horizontal open type isolating switch, by rotating the first conductive arm simulation carrier and the second conductive arm simulation carrier, the first lamp strip and the second lamp strip are respectively overlapped with the edges of the left and right conductive arms of the isolating switch; under the condition, the closing angle data of the left and right conductive arms of the isolating switch are consistent with the angle data between the first conductive arm simulation carrier and the second conductive arm simulation carrier, so that the angle data between the first conductive arm simulation carrier and the second conductive arm simulation carrier, which are obtained through the measurement of the protractor, are the closing angle data of the left and right conductive arms of the isolating switch. When the device is used, the positions of coaxial rotation of the first conductive arm simulation carrier and the second conductive arm simulation carrier and the conductive arm of the isolating switch are difficult to find, and the angle of the conductive arm when the switching-on contact is just contacted cannot be measured.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the isolating switch closing angle measuring device which can conveniently and accurately measure the angle of the conductive arm when the closing contact is just contacted and the angle of the conductive arm when the closing contact is in place.
The technical scheme adopted for solving the technical problems is as follows:
The isolating switch closing angle measuring device comprises a first measurer, a second measurer and a measuring substrate, wherein the measuring substrate comprises an insulator fixing part and a vertical plate;
The first measurer and the second measurer comprise a fixed seat, a rotary table, a microprocessor, and a laser range finder, a rotating motor, a rotating angle sensor and a display which are respectively connected with the microprocessor, wherein the rotary table is driven to rotate by the rotating motor, the rotating angle sensor is used for measuring the rotating angle of the rotary table, and the laser range finder is positioned on the rotary table;
The first measurer further comprises a contact trigger circuit I, wherein the contact trigger circuit I comprises an NPN triode Q1, a resistor R2, a resistor R3, a resistor R4, a power supply E1 and a conductive patch I, the base electrode of the NPN triode Q1 is connected with the conductive patch I through the resistor R4, the positive electrode of the power supply E1 is connected with the collector electrode of the NPN triode Q1 after being connected with the resistor R1 in series, and the emitter electrode of the NPN triode Q1 is connected with the negative electrode of the power supply E1 after being connected with the resistor R2 in series; a detection point is arranged between the resistor R1 and the collector of the NPN triode Q1, and the detection point is connected with a microprocessor of the first measurer through a resistor R3;
The second measurer further comprises a contact trigger circuit II, wherein the contact trigger circuit II comprises a loop formed by a power supply E2, a switch SB1 and an LED lamp, and the loop is connected with a conductive patch II through a wire;
The microprocessor of first caliber and second caliber passes through wireless communication module and connects, works as when electrically conductive paster I and electrically conductive paster II are connected, the microprocessor of first caliber passes through the check point detects the signal to send the microprocessor of second caliber with signal synchronization, two microprocessors control and work with laser range finder, rotating electrical machines and the rotation angle sensor that connect, work as the laser range finder measure it with the shortest distance of riser, microprocessor record rotation angle sensor's rotation angle and demonstration are in on the display.
Further, the insulator fixing part comprises a hook matched with the insulator and a tensioning rod connected with the hook, the vertical plate is slidably sleeved on the tensioning rod, and a tensioner is arranged on the tensioning rod.
Further, a manual magnet is arranged at the bottom of the fixing seat.
Further, a linear laser transmitter and a linear laser transmitter switch are arranged on the fixing seat; the vertical plate is provided with a horizontal reference line.
Further, the conductive patch I and the conductive patch II comprise adhesive tapes and metal sheets positioned on the adhesive tapes.
Further, the angle value displayed on the display is a value obtained by subtracting 90 degrees from the rotation angle of the rotation angle sensor.
The beneficial effects of the invention are as follows: the angle measuring device has the advantages that through the cooperation of the first measurer, the second measurer and the measuring substrate, the angle of the conductive arm when the switching-on contact is just contacted and the angle of the conductive arm when the switching-on contact is in place are measured, and the measurement is simple and accurate. The contact trigger circuit I and the contact trigger circuit II can accurately detect the on state of the closing contact, and drive each component to act through the microprocessor, so that the angle of the conductive arm is measured. The in-line laser transmitter and the vertical plate can also measure the horizontal state of the conductive arm and provide reference for adjusting the horizontal state.
Drawings
FIG. 1 is a schematic view of the present invention in use mounted on a isolation switch;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of a first measuring device according to the present invention;
FIG. 4 is a schematic diagram showing a split structure of a rotary table, a rotary motor and a rotation angle sensor according to the present invention; FIG. 5 is a schematic view of a measuring substrate according to the present invention;
FIG. 6 is a schematic diagram of the installation positions of the conductive patch I and the conductive patch II according to the invention;
FIG. 7 is a schematic diagram of a first measurer circuit according to the present invention;
FIG. 8 is a schematic diagram of the contact trigger circuit II of the present invention;
In the figure: 1. a first measurer; 101. a fixing seat; 102. a rotary table; 103. a laser range finder; 104. a rotating electric machine; 105. a rotation angle sensor; 106. a display; 107. a large gear; 108. a slewing bearing; 109. a manual magnet handle; 2. a second measurer; 3. measuring a substrate; 301. an insulator fixing portion; 302. a vertical plate; 3021. a horizontal reference line; 3022. a line-shaped laser line; 303. a hook; 304. a tension rod; 305. a tensioner; 3051. a screw; 3052. a rotating frame; 4. an insulator; 5. a conductive arm; 6. a sub-contact; 7. a female contact; 8. a contact point; 9. a conductive patch I; 901. sticking; 902. a metal foil; 903. a removable plug 903; 10. conductive patch II.
Detailed Description
For a better understanding of the present invention, embodiments of the present invention are explained in detail below in conjunction with fig. 1 to 8.
The isolating switch closing angle measuring device comprises a first measurer 1, a second measurer 2 and a measuring substrate 3, wherein the measuring substrate 3 comprises an insulator fixing part 301 and a vertical plate 302. Preferably, the insulator fixing portion 301 includes two hooks 303 cooperating with the insulator 4 and a tension rod 304 connecting the hooks 303, the lower portion of the vertical plate 302 is slidably sleeved on the tension rod 304, and the tension rod 304 is preferably a square tube. A tensioner 305 is provided between the two tension rods 304. The tensioner 305 preferably adopts a screw 3051 and a rotating frame 3052, wherein the screw 3051 is arranged at the end part of each tensioning rod 304, a nut matched with the screw 3051 is arranged on the rotating frame 3052, and the screws 3051 at the two ends of the rotating frame 3052 move inwards or outwards by screwing the rotating frame 3052 forwards or backwards, so that tensioning and releasing of the tensioning rods 304 are realized.
The first measuring instrument and the second measuring instrument of the present invention have basically the same structure, and only the contact trigger circuit is different, and the same structure will be described below by taking the first measuring instrument as an example: as shown in fig. 3 and 4, the first measurer includes a fixed base 101, a rotary table 102, a microprocessor, a laser range finder 103, a rotary motor 104, a rotation angle sensor 105 and a display 106, which are respectively connected with the microprocessor in a signal manner. The rotary table 102 comprises a disc and a connecting end positioned below the disc, the disc is positioned above the fixed seat 101, and the connecting end is fixedly connected with the connecting end of the large gear 107 after extending into the fixed seat 101. The bottom surface of the disc is connected with the fixed seat 101 through a slewing bearing 108. The large gear 107 is connected to the rotary electric machine 104 by a pinion gear. The center of the bottom surface of the large gear 107 is fixedly connected to the rotation end of the rotation angle sensor 105. The rotation angle sensor 105 rotates in synchronization with the turntable 102, and measures the rotation angle of the turntable 102. The laser range finder 103 is fixed on the rotary table 102, and the emitting end of the laser range finder 103 is located in the axial direction of the conductive arm 5. In order to facilitate the installation of the fixing base 101, a manual magnet fixedly connected with the conductive arm 5 is disposed at the bottom of the fixing base 101, and a manual magnet handle 109 is disposed at one side of the fixing base 101.
The first measurer further comprises a contact trigger circuit I. As shown in fig. 7, the contact trigger circuit i includes an NPN transistor Q1, a resistor R2, a resistor R3, a resistor R4, a power source E1, and a conductive patch i. The base of NPN triode Q1 is connected with conductive patch I through resistor R4 (conductive patch I is connected to b point location in FIG. 7), and the positive pole series resistance R1 of power E1 is followed by connection NPN triode Q1's collecting electrode, and the negative pole of power E1 is followed by connection behind NPN triode Q1's projecting pole series resistance R2. A detection point c is arranged between the resistor R1 and the collector electrode of the NPN triode Q1, and the detection point c is connected with an IO pin (P1.0) of the microprocessor of the first measurer through a resistor R3. The circuit diagram of fig. 7 is also simplified for the laser rangefinder, the rotating electrical machine, the rotation angle sensor, and the manner in which the display 106 is connected to the microprocessor, as is conventional in the art.
The second measurer also comprises a contact trigger circuit II. As shown in fig. 8, the contact trigger circuit ii includes a loop composed of a power source E2, a switch SB1, and an LED lamp, and a conductive patch ii is connected to the loop through a wire (i.e., the point a is connected to the conductive patch ii). The conductive patch I9 and the conductive patch II 10 have the same structure. Taking conductive patch I9 as an example: the conductive patch i 9 includes a paste 901 and a metal sheet 902 on the paste 901, the metal sheet 902 being connected to a wire. Because the conductive patch I9 and the conductive patch II 10 belong to vulnerable parts, the invention designs the conductive patch I9 and the conductive patch II 10 which can be conveniently replaced. Specifically, as shown in fig. 3, a pluggable plug 903 is disposed on the conductive wires of the conductive patch i and the conductive patch ii, and when the conductive patch i and the conductive patch ii are used up, the conductive patch is removed by the pluggable plug 903 and replaced with a new one. The removable plug 903 may employ conductive blocks with slots and conductive strips that are insertable into the slots, as well as other removable electrical connection structures that are known.
The contact trigger circuit I and the contact trigger circuit II are used for detecting the state of the isolating switch when two contacts are just closed. The principle is as follows: when the two conductive arms 5 are closed, the state of the front ends of the conductive arms 5 in which the sub-contact 6 and the main contact 7 are just contacted is as shown in fig. 6, and the left front end of the sub-contact 6 touches the arc-shaped protruding position (contact point 8 in fig. 6) of the main contact, at this time, it is measured whether the rotation angle of the two conductive arms 5 is within a prescribed range. Before detection, the switch SB1 of the contact trigger circuit II needs to be pressed, the LED lamp is lightened, and the loop is proved to be conducted. The contact point positions of the sub-contact 6 and the main contact 7 are respectively stuck with a conductive patch I and a conductive patch II, when the sub-contact 6 and the main contact 7 are just closed, the conductive patch I and the conductive patch II are connected and conducted, at the moment, the point a in fig. 8 is connected with the point b in fig. 7, the basic set of the NPN triode Q1 is high level, the NPN triode Q1 is conducted, and the microprocessor starts to control the laser range finder, the rotating motor and the rotating angle sensor to work after detecting the high level of the detecting point c.
The microprocessors of the first measurer and the second measurer are connected through a wireless communication module, and the wireless communication module can adopt a radio frequency transceiver module and other conventional wireless signal transceiver devices. When the conductive patch I is connected with the conductive patch II, the microprocessor of the first measurer detects signals through the detection point c and synchronously sends the signals to the microprocessor of the second measurer, and the two microprocessors control the laser range finder, the rotating motor and the rotating angle sensor connected with the two microprocessors to work. The rotating motor drives the rotating table and the rotating angle sensor to synchronously rotate, when the laser range finder on the rotating table measures that the distance between the laser range finder and the vertical plate 302 is shortest (namely, the transmitting end of the laser range finder is perpendicular to the vertical plate 302), the microprocessor records the rotating angle of the rotating angle sensor and displays the rotating angle on the display, and in order to more intuitively display the angle of the conductive arm, the angle value displayed on the display is the value obtained by subtracting 90 degrees from the rotating angle of the rotating angle sensor. As shown in fig. 6, the measurement angle is described by taking the conductive arm 5 where the female contact 7 is located as an example: in fig. 6, a line l2 is perpendicular to the vertical plate 302, a line l3 is parallel to the conductive arm 5, and a line l1 is parallel to the vertical plate 302. The transmitting end of the laser range finder rotates from the position of the straight line l3 to the position of the straight line l2, the rotation measurement angle of the rotation angle sensor is alpha, and at the moment, the angle of the conductive arm 5 is beta, and alpha=90° +beta.
In order to facilitate the observation and adjustment of the horizontal position of the conductive arm, the invention is provided with a linear laser emitter and a linear laser emitter switch respectively on the fixing seats of the first measurer and the second measurer. A horizontal reference line 3021 is provided on the vertical plate 302, when two conductive arms are in a closing position, the switch of the linear laser transmitter is pressed, a linear laser line 3022 appears on the vertical plate 302 (as shown in fig. 2), and whether the conductive arms are horizontal or not can be known after the horizontal reference line 3021 and the linear laser line 3022 are compared.
While the foregoing text and drawings illustrate and describe embodiments of the invention, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (6)
1. Isolator closing angle measuring device, its characterized in that: the measuring device comprises a first measurer, a second measurer and a measuring substrate, wherein the measuring substrate comprises an insulator fixing part and a vertical plate;
The first measurer and the second measurer comprise a fixed seat, a rotary table, a microprocessor, and a laser range finder, a rotating motor, a rotating angle sensor and a display which are respectively connected with the microprocessor, wherein the rotary table is driven to rotate by the rotating motor, the rotating angle sensor is used for measuring the rotating angle of the rotary table, and the laser range finder is positioned on the rotary table;
The first measurer further comprises a contact trigger circuit I, wherein the contact trigger circuit I comprises an NPN triode Q1, a resistor R2, a resistor R3, a resistor R4, a power supply E1 and a conductive patch I, the base electrode of the NPN triode Q1 is connected with the conductive patch I through the resistor R4, the positive electrode of the power supply E1 is connected with the collector electrode of the NPN triode Q1 after being connected with the resistor R1 in series, and the emitter electrode of the NPN triode Q1 is connected with the negative electrode of the power supply E1 after being connected with the resistor R2 in series; a detection point is arranged between the resistor R1 and the collector of the NPN triode Q1, and the detection point is connected with a microprocessor of the first measurer through a resistor R3;
The second measurer further comprises a contact trigger circuit II, wherein the contact trigger circuit II comprises a loop formed by a power supply E2, a switch SB1 and an LED lamp, and the loop is connected with a conductive patch II through a wire;
The microprocessor of first caliber and second caliber passes through wireless communication module and connects, works as when electrically conductive paster I and electrically conductive paster II are connected, the microprocessor of first caliber passes through the check point detects the signal to send the microprocessor of second caliber with signal synchronization, two microprocessors control and work with laser range finder, rotating electrical machines and the rotation angle sensor that connect, work as the laser range finder measure it with the shortest distance of riser, microprocessor record rotation angle sensor's rotation angle and demonstration are in on the display.
2. The isolating switch-on angle measurement device as in claim 1, wherein: the insulator fixing part comprises a hook matched with the insulator and a tensioning rod connected with the hook, the vertical plate is slidably sleeved on the tensioning rod, and a tensioner is arranged on the tensioning rod.
3. The isolating switch-on angle measurement device as in claim 1, wherein: the bottom of the fixing seat is provided with a manual magnet.
4. The isolating switch-on angle measurement device as in claim 1, wherein: a linear laser transmitter and a linear laser transmitter switch are arranged on the fixed seat; the vertical plate is provided with a horizontal reference line.
5. The isolating switch-on angle measurement device as in claim 1, wherein: the conductive patch I and the conductive patch II comprise a glue patch and a metal sheet arranged on the glue patch.
6. The isolating switch-on angle measurement device as in claim 1, wherein: the angle value displayed on the display is a value obtained by subtracting 90 degrees from the rotation angle of the rotation angle sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410843109.5A CN118392111B (en) | 2024-06-27 | 2024-06-27 | Isolating switch closing angle measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410843109.5A CN118392111B (en) | 2024-06-27 | 2024-06-27 | Isolating switch closing angle measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118392111A CN118392111A (en) | 2024-07-26 |
| CN118392111B true CN118392111B (en) | 2024-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410843109.5A Active CN118392111B (en) | 2024-06-27 | 2024-06-27 | Isolating switch closing angle measuring device |
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| Country | Link |
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| CN (1) | CN118392111B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406995A (en) * | 2018-10-22 | 2019-03-01 | 四川大学 | A kind of three column rotary high-voltage isolating switch in-place closing confirmation methods based on laser optical path |
| CN111238407A (en) * | 2020-01-30 | 2020-06-05 | 华东交通大学 | Sensor system for measuring angle of contact net isolating switch knife |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2746957B1 (en) * | 1996-03-29 | 1998-06-19 | Schneider Electric Sa | CONTROL MECHANISM OF A CIRCUIT BREAKER WITH WIDE OPENING ANGLE |
| DE102007040170A1 (en) * | 2007-08-22 | 2009-02-26 | Siemens Ag | Preliminary contact for electrical switching device, has power rail with bracket aligned in angle to surface of power rail at fastening region at unloaded condition, where angle of specific degrees is smaller than angle at housing |
| CN207282359U (en) * | 2017-10-10 | 2018-04-27 | 国网江苏省电力公司淮安供电公司 | A kind of new disconnecting switch based on angular transducer point, close position monitoring device |
| CN210374953U (en) * | 2019-10-24 | 2020-04-21 | 云南电网有限责任公司玉溪供电局 | Measuring tool for closing angle of double-column horizontal opening type isolating switch |
| CN115265340B (en) * | 2022-06-24 | 2024-06-11 | 山东大学 | High-voltage isolating switch rotation angle measuring device and measuring method |
| CN115713652A (en) * | 2022-11-10 | 2023-02-24 | 华南理工大学 | Device and method for identifying switch-on in-place of isolating switch based on state of transmission device |
-
2024
- 2024-06-27 CN CN202410843109.5A patent/CN118392111B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406995A (en) * | 2018-10-22 | 2019-03-01 | 四川大学 | A kind of three column rotary high-voltage isolating switch in-place closing confirmation methods based on laser optical path |
| CN111238407A (en) * | 2020-01-30 | 2020-06-05 | 华东交通大学 | Sensor system for measuring angle of contact net isolating switch knife |
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| CN118392111A (en) | 2024-07-26 |
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