CN118392111B - Disconnector closing angle measuring device - Google Patents

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

Disconnector closing angle measuring device

Technical Field

The invention relates to the technical field of disconnector closing angle measurement, in particular to a disconnector closing angle measurement device.

Background Art

When inspecting the isolating switch, it is necessary to measure the closing angle, which mainly includes the conductive arm angle when the closing contacts just touch and the conductive arm angle when the switch is fully closed. The existing measurement methods mainly include manual measurement and measurement using a rotation angle sensor installed on the rotating shaft of the isolating switch. The manual measurement method is cumbersome and has large errors. The installation of the rotation angle sensor is not only complicated and inflexible, but can only detect the rotation angle after the switch is fully closed.

For example, the Chinese invention patent with the authorization announcement number CN115265340B discloses a high-voltage disconnector rotation angle measuring device and method, which converts the measurement of the worm gear rotation angle into the measurement of the cam rotation angle, and converts the measurement of the cam rotation angle into the measurement of the linear movement distance of the detection rod. Although the rotation angle can be observed intuitively, the structure is complex to install and the function is single. Another example is the Chinese utility model patent with the authorization announcement number CN210374953U discloses a double-column horizontal opening disconnector closing angle measuring tool, which rotates the first conductive arm simulation carrier and the second conductive arm simulation carrier so that the first light strip and the second light strip overlap with the edges of the left and right conductive arms of the disconnector respectively; in this case, the closing angle data of the left and right conductive arms of the disconnector 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 measured by the protractor is the closing angle data of the left and right conductive arms of the disconnector. When the device is used, it is difficult to find a position where the first conductive arm simulation carrier and the second conductive arm simulation carrier rotate coaxially with the conductive arm of the disconnector, and the conductive arm angle when the closing contact just contacts cannot be measured.

Summary of the invention

In view of the above-mentioned deficiencies in the prior art, the present invention provides a disconnector closing angle measuring device which can conveniently and accurately measure the conductive arm angle when the closing contacts just touch and the conductive arm angle when the closing contacts are fully closed.

The technical solution adopted by the present invention to solve the technical problem is:

The disconnector closing angle measuring device comprises a first measuring device, a second measuring device and a measuring substrate, wherein the measuring substrate comprises an insulator fixing portion and a vertical plate;

The first measuring device and the second measuring device each include a fixed seat, a rotating table, a microprocessor, and a laser rangefinder, a rotating motor, a rotation angle sensor and a display connected to the microprocessor respectively. The rotating table is driven to rotate by the rotating motor. The rotation angle sensor is used to measure the rotation angle of the rotating table. The laser rangefinder is located on the rotating table.

The first measuring device further includes a contact trigger circuit I, which includes an NPN transistor Q1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a power supply E1 and a conductive patch I, the base of the NPN transistor Q1 is connected to the conductive patch I via the resistor R4, the positive electrode of the power supply E1 is connected in series with the resistor R1 and then connected to the collector of the NPN transistor Q1, and the emitter of the NPN transistor Q1 is connected in series with the resistor R2 and then connected to the negative electrode of the power supply E1; a detection point is set between the resistor R1 and the collector of the NPN transistor Q1, and the detection point is connected to the microprocessor of the first measuring device via the resistor R3;

The second measuring device further comprises a contact trigger circuit II, the contact trigger circuit II comprises a loop consisting of a power source E2, a switch SB1 and an LED lamp, and the loop is connected to a conductive patch II via a wire;

The microprocessors of the first measuring device and the second measuring device are connected via a wireless communication module. When the conductive patch I and the conductive patch II are connected, the microprocessor of the first measuring device detects a signal through the detection point and synchronously sends the signal to the microprocessor of the second measuring device. The two microprocessors control the operation of the laser rangefinder, the rotating motor and the rotation angle sensor connected thereto. When the laser rangefinder measures that the distance between it and the vertical board is the shortest, the microprocessor records the rotation angle of the rotation angle sensor and displays it on the display.

Furthermore, the insulator fixing portion includes a hook matched with the insulator and a tension rod connected to the hook, the vertical plate can be slidably sleeved on the tension rod, and a tensioner is arranged on the tension rod.

Furthermore, a manual magnet is arranged at the bottom of the fixing seat.

Furthermore, a straight-line laser emitter and a straight-line laser emitter switch are arranged on the fixing seat; and a horizontal reference line is arranged on the vertical plate.

Furthermore, the conductive patch I and the conductive patch II both include an adhesive patch and a metal sheet located on the adhesive patch.

Furthermore, the angle value displayed on the display is the value obtained by subtracting 90 degrees from the rotation angle of the rotation angle sensor.

The beneficial effects of the present invention are: it realizes the measurement of the conductive arm angle when the closing contact just contacts and the conductive arm angle when the closing contact is in place through the cooperation of the first measuring device, the second measuring device and the measuring substrate, and the measurement is simple and accurate. The contact trigger circuit I and the contact trigger circuit II can accurately detect the connection state of the closing contact, and drive the various components to operate through the microprocessor to realize the measurement of the conductive arm angle. The straight-line laser emitter and the vertical plate of the present invention can also measure the horizontal state of the conductive arm and provide a reference for adjusting the horizontal state.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the present invention in use when installed on an isolating switch;

FIG2 is a partial enlarged view of point A in FIG1;

FIG3 is a schematic structural diagram of a first measuring device of the present invention;

FIG4 is a schematic diagram of the split structure of the rotating table, the rotating motor and the rotating angle sensor of the present invention; FIG5 is a schematic diagram of the structure of the measuring substrate of the present invention;

FIG6 is a schematic diagram of the installation positions of the conductive patch I and the conductive patch II of the present invention;

FIG7 is a schematic diagram of the circuit principle of the first measuring device of the present invention;

FIG8 is a schematic diagram of the principle of the contact trigger circuit II of the present invention;

In the figure: 1. first measuring device; 101. fixing seat; 102. rotating table; 103. laser rangefinder; 104. rotating motor; 105. rotation angle sensor; 106. display; 107. large gear; 108. slewing bearing; 109. manual magnet handle; 2. second measuring device; 3. measuring substrate; 301. insulator fixing part; 302. vertical plate; 3021. horizontal reference line; 3022. straight laser line; 303. hook; 304. tension rod; 305. tensioner; 3051. screw rod; 3052. rotating frame; 4. insulator; 5. conductive arm; 6. sub-contact; 7. female contact; 8. contact point; 9. conductive patch I; 901. adhesive sticker; 902. metal sheet; 903. removable plug 903; 10. conductive patch II.

DETAILED DESCRIPTION

In order to better understand the present invention, the embodiments of the present invention are explained in detail below with reference to FIG. 1 to FIG. 8 .

The disconnector closing angle measuring device of the present invention comprises a first measuring device 1, a second measuring device 2 and a measuring substrate 3, wherein the measuring substrate 3 comprises an insulator fixing portion 301 and a vertical plate 302. Preferably, the insulator fixing portion 301 comprises two hooks 303 cooperating with the insulator 4 and a tension rod 304 connected with the hooks 303, and the lower part of the vertical plate 302 can be slidably sleeved on the tension rod 304, and the tension rod 304 preferably adopts a square tube. A tensioner 305 is arranged between the two tension rods 304. The tensioner 305 preferably adopts a screw rod 3051 and a rotating frame 3052, wherein a screw rod 3051 is arranged at the end of each tension rod 304, and a nut cooperating with the screw rod 3051 is arranged on the rotating frame 3052, and the screw rods 3051 at both ends of the rotating frame 3052 are moved inward or outward by screwing the rotating frame 3052 forward or reversely, thereby realizing the tightening and loosening of the tension rod 304.

The first measuring device and the second measuring device of the present invention have basically the same structure, and only the contact trigger circuit is different. The first measuring device is taken as an example to illustrate the same structure of the two devices. As shown in Figures 3 and 4, the first measuring device includes a fixed seat 101, a rotating table 102, a microprocessor, and a laser rangefinder 103, a rotating motor 104, a rotation angle sensor 105 and a display 106 respectively connected to the microprocessor signal. The rotating table 102 includes a disk and a connecting end located below the disk. The disk is located above the fixed seat 101. The connecting end extends into the fixed seat 101 and is fixedly connected to the connecting end of the large gear 107. The bottom surface of the disk and the fixed seat 101 are connected by a slewing bearing 108. The large gear 107 is connected to the rotating motor 104 through a pinion drive. The bottom center of the large gear 107 is fixedly connected to the rotating end of the rotation angle sensor 105. The rotation angle sensor 105 rotates synchronously with the rotating table 102 and is used to measure the rotation angle of the rotating table 102. The laser rangefinder 103 is fixed on the rotating table 102, and the transmitting end of the laser rangefinder 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 for fixing and connecting with the conductive arm 5 is arranged at the bottom of the fixing base 101, and a manual magnet handle 109 is located on one side of the fixing base 101.

The first measuring device also includes a contact trigger circuit I. As shown in FIG7 , the contact trigger circuit I includes an NPN transistor Q1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a power source E1, and a conductive patch I. The base of the NPN transistor Q1 is connected to the conductive patch I through a resistor R4 (the conductive patch I is connected at point b in FIG7 ), the positive electrode of the power source E1 is connected in series with the resistor R1 and then connected to the collector of the NPN transistor Q1, and the emitter of the NPN transistor Q1 is connected in series with the resistor R2 and then connected to the negative electrode of the power source E1. A detection point c is set between the resistor R1 and the collector of the NPN transistor Q1, and the detection point c is connected to the IO pin (P1.0) of the microprocessor of the first measuring device through the resistor R3. The connection method of the laser rangefinder, the rotating motor, the rotation angle sensor, and the display 106 with the microprocessor belongs to the conventional technology in the field, and the circuit diagram in FIG7 is also simplified.

The second measuring device also includes a contact trigger circuit II. As shown in FIG8 , 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., point a is connected to the conductive patch II). The conductive patch I9 and the conductive patch II10 have the same structure. Take the conductive patch I9 as an example: the conductive patch I9 includes an adhesive patch 901 and a metal sheet 902 located on the adhesive patch 901, and the metal sheet 902 is connected to the wire. Since the conductive patch I9 and the conductive patch II10 are consumable parts, the present invention designs a conductive patch I9 and a conductive patch II10 that can be easily replaced. Specifically, as shown in FIG3 , a removable plug 903 is provided on the wire of the conductive patch I and the conductive patch II. When the conductive patch I and the conductive patch II are used up, the conductive patch can be removed by the removable plug 903 and replaced with a new one. The removable plug 903 can adopt a conductive block with a slot and a conductive sheet that can be inserted into the slot, as well as other existing detachable electrical connection structures.

The contact trigger circuit I and the contact trigger circuit II are used to detect the state of the two contacts of the disconnector when they are just closed. The principle is as follows: when the two conductive arms 5 are closed, the state of the sub-contact 6 and the female contact 7 at the front end of the conductive arm 5 when they are just in contact is shown in Figure 6. The left front end of the sub-contact 6 touches the arc-shaped protruding position of the female contact (contact point 8 in Figure 6). At this time, measure whether the rotation angle of the two conductive arms 5 is within the specified range. Before testing, it is necessary to press the switch SB1 of the contact trigger circuit II, and the LED light will light up to prove that the circuit is conductive. Conductive patch I and conductive patch II are respectively attached to the contact points of the sub-contact 6 and the mother contact 7. When the sub-contact 6 and the mother contact 7 are just closed, the conductive patch I and the conductive patch II are connected and turned on. At this time, point a in Figure 8 is connected to point b in Figure 7, the base set of the NPN transistor Q1 is at a high level, the NPN transistor Q1 is turned on, and the microprocessor starts to control the laser rangefinder, the rotating motor and the rotation angle sensor to work after detecting that the detection point c is at a high level.

The microprocessors of the first measuring device and the second measuring device are connected through a wireless communication module, and the wireless communication module can use a radio frequency transceiver module and other conventional wireless signal transceiver devices. When the conductive patch I and the conductive patch II are connected, the microprocessor of the first measuring device detects the signal through the detection point c, and sends the signal synchronously to the microprocessor of the second measuring device. The two microprocessors control the laser rangefinder, the rotating motor and the rotation angle sensor connected thereto to work. The rotating motor drives the rotating table and the rotation angle sensor to rotate synchronously. When the laser rangefinder on the rotating table measures the shortest distance between it and the vertical plate 302 (that is, when the transmitting end of the laser rangefinder is perpendicular to the vertical plate 302), the microprocessor records the rotation angle of the rotation angle sensor and displays it on the display. In order to more intuitively display the angle of the conductive arm, the angle value displayed on the display is the value of the rotation angle of the rotation angle sensor minus 90 degrees. As shown in Figure 6, the conductive arm 5 where the female contact 7 is located is used as an example to illustrate the measurement of the angle: in Figure 6, the straight line l2 is perpendicular to the vertical plate 302, the straight line l3 is parallel to the conductive arm 5, and the straight line l1 is parallel to the vertical plate 302. The transmitting end of the laser rangefinder rotates from the position of the straight line l3 to the position of the straight line l2, and the rotation measurement angle of the rotation angle sensor is α. At this time, the angle of the conductive arm 5 is β, α=90°+β.

In order to facilitate observation and adjustment of the horizontal position of the conductive arm, the present invention is provided with a straight-line laser emitter and a straight-line laser emitter switch on the fixing seats of the first measuring device and the second measuring device, respectively. A horizontal reference line 3021 is provided on the vertical plate 302. When the two conductive arms are in the closed position, the straight-line laser emitter switch is pressed, and a straight-line laser line 3022 appears on the vertical plate 302 (as shown in FIG. 2). By comparing the horizontal reference line 3021 with the straight-line laser line 3022, it can be known whether the conductive arm is horizontal.

Although the above text and the drawings in the specification have shown and described the embodiments of the present invention, it is understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is 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.