CN115165187A - Visual device for clamping force of outdoor high-voltage isolating switch - Google Patents
Visual device for clamping force of outdoor high-voltage isolating switch Download PDFInfo
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- CN115165187A CN115165187A CN202210732562.XA CN202210732562A CN115165187A CN 115165187 A CN115165187 A CN 115165187A CN 202210732562 A CN202210732562 A CN 202210732562A CN 115165187 A CN115165187 A CN 115165187A
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- isolating switch
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- 230000000007 visual effect Effects 0.000 title claims abstract description 8
- 230000003068 static effect Effects 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 230000006698 induction Effects 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000012800 visualization Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
Visual device of outdoor high voltage isolator clamp force relates to high voltage isolator technical field for clamp force between isolator move, the static contact presents with audio-visual form. The device comprises an elastic sheet detection assembly, wherein the elastic sheet detection assembly comprises an installation shell and a contact piece, a supporting guide rod is arranged between the contact piece and the installation shell, a swing rod is hinged in the installation shell, and the contact piece moves to drive one end of the swing rod to swing; a slide rheostat is arranged in the mounting shell, and a connecting piece is arranged between the other end of the swing rod and a slide sheet of the slide rheostat; the bolt detection assembly comprises an installation block, an induction block is arranged in the installation block, the induction block and the bolt act synchronously, and a flexible shaft is fixed on the induction block; the ammeter and the slide rheostat form a current loop, the angle measurer is provided with a pointer, the pointer and the driven gear are coaxially arranged, a driving gear meshed with the driven gear is arranged in the angle measurer, and the driving gear is fixedly connected with the flexible shaft. The invention can realize the visual clamping force of the moving contact and the static contact of the isolating switch.
Description
Technical Field
The invention relates to the technical field of high-voltage isolating switches, in particular to a visual device for clamping force of an outdoor high-voltage isolating switch.
Background
The high-voltage isolating switch is an important switching device in an electrical system of a transformer substation and is used for cutting off or converting a power line, switching on is realized through contact of a movable contact and a fixed contact of the high-voltage isolating switch, and switching off is realized through separation of the movable contact and the fixed contact of the high-voltage isolating switch. As shown in fig. 1, which is a structure diagram of a moving contact and a fixed contact of a high-voltage isolating switch commonly used in the prior art, after moving into the fixed contact 1, the moving contact 12 contacts with conducting strips 11 on two sides in the fixed contact 1 to implement switching on. The side wall of the conducting plate 11 is provided with an elastic plate 13, the middle part of the elastic plate 13 is arc-shaped, one end of the elastic plate 13 is fixedly connected with the conducting plate 11 through a bolt 14, the other end of the elastic plate 13 naturally extends, and the conducting plates 11 on the two sides clamp the moving contact 12 under the action of the elastic plate 13.
After long-time operation, the condition of poor contact can appear in isolator moving, static contact. As shown in fig. 2, when the bolt 14 between the conductive plate 11 and the elastic plate 13 of the disconnecting switch is loosened and the moving contact 12 extends between the two conductive plates 11 in the stationary contact 1, the elastic plate 13 cannot exert the elastic pressing effect, and the conductive plate 11 moves to both sides and is further in poor contact with the moving contact 12. As shown in fig. 3, after the elastic sheet 13 fails in a long-term use, the arc radius of the middle portion of the elastic sheet 13 increases (i.e., the elastic sheet is stretched to fail), and the other end of the elastic sheet presses the conductive sheet 11 without significant effect, so that the conductive sheet 11 and the movable contact 12 are in poor contact. As shown in fig. 4, when the conductive sheet 11 is bent after a long time of use and the elastic pressing sheet 13 fails to stretch, the contact between the movable contact 12 and the conductive sheet 11 is poor.
Disclosure of Invention
The invention aims to provide a visual device for clamping force of an outdoor high-voltage isolating switch, which is used for presenting the clamping force between a moving contact and a fixed contact of the isolating switch in an intuitive form, and is convenient for electric power personnel to observe whether the clamping force between the moving contact and the fixed contact of the isolating switch is in a qualified range by naked eyes.
The technical scheme adopted by the invention for solving the technical problems is as follows: the visual device for the clamping force of the outdoor high-voltage isolating switch comprises an elastic sheet detection assembly, a bolt detection assembly, an ammeter and an angle measurer;
the elastic piece detection assembly comprises a mounting shell and a contact piece, the mounting shell is fixed on the inner wall of the static contact, a supporting guide rod is arranged between the contact piece and the mounting shell, the contact piece and the elastic piece are always kept in contact under the action of the supporting guide rod, and an actuating rod is arranged on the end face of the contact piece; a swing rod is hinged in the mounting shell, a fixed rod is fixed at one end of the swing rod, and the fixed rod is hinged with the actuating rod through a connecting rod; a slide rheostat is arranged in the mounting shell, a connecting piece is arranged between the other end of the swing rod and a sliding sheet of the slide rheostat, and the swing rod drives the sliding sheet of the slide rheostat to move through the connecting piece when swinging; the side wall of the swing rod is provided with a flexible shaft, and the flexible shaft driving the side wall of the swing rod synchronously rotates around the axis of the flexible shaft when the swing rod rotates;
the bolt detection assembly comprises an installation block positioned on the inner wall of the static contact, an induction block is arranged in the installation block and synchronously acts with the bolt, a flexible shaft is fixed on the induction block, and the bolt drives the flexible shaft on the induction block to rotate around the axis of the bolt when rotating;
the ammeter, the sliding rheostat, the fixed resistor and the power supply form a current loop, and when the clamping force between the conducting strip and the moving contact is changed, the oscillating bar swings to enable the sliding rheostat to be connected with the resistance change of the current loop, so that the reading of the ammeter is changed; the angle measurer is provided with a pointer and scale marks, the pointer and the driven gear are coaxially arranged, a driving gear meshed with the driven gear is arranged in the angle measurer, the driving gear is fixedly connected with the flexible shaft, and the scale marks are arranged at equal intervals along an arc taking the center of the driven gear as the circle center.
Furthermore, the side wall of the installation shell is provided with a gap, a telescopic sheath is arranged at the gap, and the contact piece is positioned on the inner side of the sheath and is in contact with the end part of the sheath for fixation.
Further, support the guide bar including deciding the pole, moving pole and contact spring, decide pole and installation shell lateral wall fixed connection, the one end of moving the pole stretches into and decides the pole inboard and move pole one end and decide and have contact spring between the pole.
Furthermore, a hinged shaft is fixed on the swing rod and is hinged with the mounting shell, and the distance from the hinged shaft to the other end of the swing rod is 10-20 times of the distance from the hinged shaft to one end of the swing rod.
Furthermore, the number of the contact pieces is the same as that of the elastic pieces on the static contact, and the contact pieces correspond to the elastic pieces one to one.
Furthermore, the number of the support guide rods between the contact plate and the mounting shell is two, the two support guide rods are located at two diagonal positions of the mounting shell, and the actuating rod is located in the center of the mounting shell.
Furthermore, a sliding block is arranged on a sliding sheet of the slide rheostat, the sliding block extends into a sliding groove at the other end of the swinging rod, and the swinging rod drives the sliding block to move along a guide rod of the slide rheostat when swinging.
Furthermore, an axial slot is formed in the mounting block, the flexible shaft and the induction block extend out of the mounting block after penetrating through the axial slot, and extend into the sleeve after penetrating through the side wall of the static contact, and the sleeve is fixedly connected with the side wall of the static contact.
Furthermore, the end face of the induction block is provided with an inner hexagonal hole, and a nut of a bolt on the static contact is plugged into the inner hexagonal hole during installation.
Furthermore, a spring groove is formed in the mounting block, the sensing block is located in the spring groove, a spring seat is arranged in the spring groove, the spring seat is fixedly connected with one end of a follow-up spring, one end of the follow-up spring is fixedly connected with the inner wall of the spring groove, a rotating ring is arranged on the end face of the sensing block, and the rotating ring is rotatably connected with the spring seat.
The beneficial effects of the invention are:
(1) The elastic sheet detection assembly is used for detecting the form of the elastic sheet, the change of a contact point between the elastic sheet and the contact sheet is fed back to the swing rod through the contact sheet, the actuating rod and the connecting rod, the swing of the swing rod causes the change of the resistance of the access current loop of the slide rheostat, and further causes the change of the current loop, and whether the resistance of the access circuit of the slide rheostat is in a reasonable range can be known according to the current; after the elastic sheet is deformed and stretched, the clamping force of the conductive sheet on the movable contact is small, the contact sheet moves to one side close to the elastic sheet at the moment, and then the resistance of the slide rheostat connected into the current loop is increased through the actuating rod, the connecting rod, the fixed rod and the oscillating rod, so that the reading of the ammeter in the current loop is reduced. By observing the reading of the ammeter, the clamping force between the moving contact and the fixed contact of the isolating switch can be known.
(2) The bolt detection subassembly's setting, at the not hard up back of bolt, drives the rotation of response piece, and then transmits the pointer swing on the angular surveying ware to the angular surveying ware through the flexible axle and make, and the more loose the bolt, pointer swing angle is big more on the angular surveying ware, and it is less to the extrusion force of conducting strip to show the flexure strip, and then the clamping-force between the isolator moving contact and the static contact is little. Whether the clamping force of the movable and static contacts of the isolating switch is reduced due to the looseness of the bolts can be known through the angle of the angle measurer.
(3) The magnitude of the clamping force is visually displayed through the magnitude of the angle values of the ampere meter and the angle measurer, so that visibility is realized, and electric power personnel can find out faults of the movable contact and the fixed contact of the isolating switch in time.
Drawings
FIG. 1 is a schematic diagram of a disconnecting switch between a moving contact and a static contact and after closing in the prior art;
FIG. 2 is a schematic diagram illustrating a decrease in clamping force between a moving contact and a stationary contact after a bolt on the stationary contact of an isolating switch is loosened in the prior art;
FIG. 3 is a schematic diagram illustrating a decrease in clamping force between a moving contact and a stationary contact after an elastic piece on the stationary contact of the isolating switch fails in the prior art;
FIG. 4 is a schematic diagram illustrating a decrease in clamping force between a moving contact and a stationary contact after a conductive sheet on the stationary contact of the isolating switch is bent and deformed in the prior art;
fig. 5 is an assembly view of the present invention with a stationary contact of an isolating switch;
FIG. 6 is a front view of an elastomeric sheet detection assembly;
FIG. 7 is a right side view of FIG. 6;
FIG. 8 is a schematic view of the internal structure of the elastic piece detecting assembly;
FIG. 9 is an assembled view of the contact plate, the guide support rod and the actuating rod;
FIG. 10 is a cross-sectional view of the guide support bar;
FIG. 11 is a front assembly view of the rocker and slider;
FIG. 12 is a rear view of the swing link;
FIG. 13 is a partial cross-sectional view between the rocker and the slider;
FIG. 14 is an assembly view of the swing link, the flexible shaft and the angle measurer;
FIG. 15 is a partial view taken from the direction A of FIG. 14;
FIG. 16 is a cross-sectional view of the bolt detection assembly;
FIG. 17 is an assembly view of the bolt detection assembly with the bolt (viewed from the side of the bolt toward the mounting block);
in the figure: the device comprises a fixed contact 1, a conducting strip 11, a moving contact 12, an elastic strip 13, a bolt 14, a mounting shell 2, a notch 21, a sheath 22, a fixed rod 23, a moving rod 24, a contact spring 25, a sleeve 26, a contact 3, an actuating rod 31, a connecting rod 32, a swing rod 33, a sliding chute 331, a fixed rod 34, a hinged shaft 35, a flexible shaft 36, a slide rheostat 4, a guide rod 41, a sliding sheet 42, a sliding block 43, a conducting wire 44, a mounting block 5, a shaft groove 51, a sensing block 52, a hexagonal hole 53, a rotating ring 54, a spring seat 55, a follow-up spring 56, a spring groove 57, a current meter 6, an angle measurer 7, a pointer 71, a scale mark 72, a driven gear 73 and a driving gear 74.
Detailed Description
As shown in fig. 5 to 17, the present invention includes an elastic sheet detecting assembly, a bolt detecting assembly, an ammeter 6 and an angle measurer 7, and the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 5, the outdoor high-voltage disconnector clamping force visualization device comprises an elastic sheet detection assembly, a bolt detection assembly, an ammeter 6 and an angle measurer 7.
As shown in fig. 5 to 8, the elastic piece detecting assembly includes a mounting shell 2 and a contact piece 3, the mounting shell 2 is fixed on the inner wall of the static contact, a supporting guide rod is arranged between the contact piece 3 and the mounting shell 2, the contact piece 3 and the elastic piece 13 are always kept in contact under the action of the supporting guide rod, and an actuating rod 31 is arranged on the end surface of the contact piece 3; a swing rod 33 is hinged in the mounting shell 2, one end of the swing rod 33 is fixed with a fixed rod 34, and the fixed rod 34 is hinged with the actuating rod 31 through a connecting rod 32; the installation shell 2 is internally provided with a slide rheostat 4, a connecting piece is arranged between the other end of the swing rod 33 and a sliding sheet 42 of the slide rheostat 4, and the swing rod 33 drives the sliding sheet 42 of the slide rheostat 4 to move through the connecting piece when swinging; the side wall of the swing rod 33 is provided with a flexible shaft 36, and the flexible shaft 36 on the side wall of the swing rod 33 is driven to synchronously rotate around the axis of the swing rod 33 when the swing rod 33 rotates.
The bolt detection assembly comprises a mounting block 5 located on the inner wall of the static contact 1, as shown in fig. 16, an induction block 52 is arranged in the mounting block 5, the induction block 52 and the bolt 14 synchronously move, a flexible shaft 36 is fixed on the induction block 52, and the bolt 14 drives the flexible shaft 36 on the induction block 52 to rotate around the axis of the bolt 14 when rotating.
The ammeter 6, the slide rheostat 4, the fixed resistor and the power supply form a current loop, a lead 44 on the slide rheostat 4 is connected with a slide sheet 42 of the slide rheostat and one end of the slide rheostat 4, and when the clamping force between the conducting sheet 11 and the moving contact 12 changes, the swing rod 33 swings to enable the slide rheostat 4 to be connected with the resistance change of the current loop, so that the reading of the ammeter 6 is changed; the angle measuring device 7 is provided with a pointer 71 and scale marks 72, the pointer 71 and the driven gear 73 are coaxially arranged, as shown in fig. 15, a driving gear 74 meshed with the driven gear 73 is arranged in the angle measuring device 7, as shown in fig. 14, one end of the flexible shaft 36 extends into the angle measuring device 7 and is fixedly connected with the driving gear 74, the other end of the flexible shaft 36 is fixedly connected with the hinge shaft 35, and the scale marks 72 are arranged at equal intervals along an arc taking the center of the driven gear 73 as the circle center.
When the elastic sheet 13 is stretched and failed due to long-term use, the squeezing action of the elastic sheet 13 on the conductive sheets 11 is weakened, so that the movable contact 12 enters between the conductive sheets 11 at two sides, the conductive sheets 11 cannot clamp the movable contact, and at the moment, the contact piece 3 moves towards one side of the elastic sheet 13 under the action of the contact spring 25 to keep in contact with the elastic sheet 13. When the contact piece 3 drives the actuating rod 31 to move towards the side close to the elastic piece 13, the connecting rod 32 pulls the fixed rod to swing clockwise around the hinge shaft, and further drives the swing rod 33 to swing around the hinge shaft 35. One end of the swing link 33 swings to a side close to the elastic piece 13, and the other end of the swing link 33 swings to a side far from the elastic piece 13. The resistance of the sliding varistor 4 into the current circuit increases, which results in an increase in the resistance of the entire current circuit and thus in a decrease in the current of the entire current circuit, which is presented on the ammeter 6. Therefore, whether the elastic sheet fails or not can be known through the reading change of the ammeter, and whether the clamping force of the movable contact and the fixed contact of the isolating switch is in a qualified range state or not can be further known. When the swing rod swings, the flexible shaft is driven to rotate, the pointer on the angle measurer swings due to the rotation of the flexible shaft, and the clamping force of the moving contact and the fixed contact of the isolating switch can be known through the pointer position of the angle measurer.
When the bolt 14 loosens, the elastic sheet 13 loosens from the conductive sheet 11, and the squeezing action of the elastic sheet 13 on the conductive sheet 11 is weakened, so that the clamping force of the movable contact and the fixed contact of the isolating switch is reduced. When the bolt 14 is loosened, the induction block 52 is driven to rotate, the flexible shaft 36 fixedly connected with the induction block 52 is driven to rotate, the flexible shaft 36 rotates to drive the pointer 71 on the angle measurer 7 to swing, and the magnitude of the clamping force of the moving and static contacts of the isolating switch can be visually known through the position of the pointer 71 on the angle measurer 7.
Specifically, as shown in fig. 8, the side wall of the mounting case 2 has a notch 21, and a retractable sheath 22 is provided at the notch 21, and as shown in fig. 7, the contact piece 3 is located inside the sheath 22 and fixed in contact with the end of the sheath 22. The number of the contact pieces 3 is the same as that of the elastic pieces 13 on the static contact 1, and the contact pieces 3 correspond to the elastic pieces 13 one by one.
Specifically, as shown in fig. 10, the supporting and guiding rod includes a fixed rod 23, a moving rod 24 and a contact spring 25, the fixed rod 23 is fixedly connected with the side wall of the mounting housing 2, one end of the moving rod 24 extends into the inner side of the fixed rod 23, and the contact spring 25 is arranged between one end of the moving rod 24 and the fixed rod 23. The contact piece 3 is contacted and fixed with the other end of the moving rod 24.
Specifically, as shown in fig. 11, a hinge shaft 35 is fixed on the swing link 33, the hinge shaft 35 is hinged with the mounting shell 2, and the distance from the hinge shaft 35 to the other end of the swing link 33 is 10-20 times the distance from the hinge shaft 35 to one end of the swing link 33. Therefore, when the contact piece 3 is displaced slightly, one end of the swing rod 33 is displaced slightly, but the other end of the swing rod 33 is displaced slightly, so that the resistance of the slide rheostat 4 connected to the current loop is obviously changed by amplifying the displacement change of the contact piece 3, and the reading change of the ammeter is convenient to observe.
Specifically, as shown in fig. 9, there are two support guide rods between the contact plate 3 and the mounting shell 2, the two support guide rods are located at two diagonal positions of the mounting shell 2, and the actuating rod 31 is located at the center of the mounting shell 2.
Specifically, as shown in fig. 11, 12 and 13, the sliding piece 42 of the slide rheostat 4 has a sliding block 43, the sliding block 43 extends into the sliding slot 331 at the other end of the swing link 33, and as shown in fig. 8, the swing link 33 swings to drive the sliding block 43 to move along the guide rod 41 of the slide rheostat 4.
Specifically, as shown in fig. 16, the mounting block 5 has a shaft slot 51 therein, the flexible shaft 36 fixedly connected to the sensing block 52 extends out of the mounting block 5 after passing through the shaft slot 51, as shown in fig. 5, and extends into the sleeve 26 after passing through the sidewall of the static contact 1, and the sleeve 26 is fixedly connected to the sidewall of the static contact 1. The wires 44 on the slide rheostat 4 also penetrate into the sleeve 26.
Specifically, as shown in fig. 16 and 17, the sensing block 52 is a circular structure, one end of the sensing block 52 is open, the other end of the sensing block 52 is closed, an inner hexagonal hole 53 is formed in the open end surface of the sensing block 52, and a nut of the bolt 14 on the static contact 1 is plugged into the inner hexagonal hole 53 during installation, so that the bolt 14 and the sensing block 52 are relatively fixed and synchronously move along the circumferential direction.
Specifically, a spring groove 57 is formed in the mounting block 5, the sensing block 52 is located in the spring groove 57, a spring seat 55 is formed in the spring groove 57, the spring seat 55 is fixedly connected with one end of a follow-up spring 56, the other end of the follow-up spring 56 is fixedly connected with the inner wall of the spring groove 57, a rotating ring 54 is arranged on the end face of the other end of the sensing block 52, and the rotating ring 54 extends into the end face of the spring seat 55 and is rotatably connected with the spring seat 55. When the screw 14 loosens, the induction block 52 is driven to rotate, when the bolt 14 loosens, the bolt 14 moves axially in addition to rotating, and at the moment, the bolt 14 pushes the induction block 52 to move towards the side close to the follow-up spring 56, so that synchronous action of the induction block 52 and the bolt 14 is realized. When the bolt 14 rotates, the sensing block 52 rotates, so that the angle change of the angle measurer 7 can be accurately displayed.
According to the invention, the elastic sheet detection assembly is arranged and used for detecting the form of the elastic sheet, the change of the contact point between the elastic sheet and the contact sheet is fed back to the swing rod through the contact sheet, the actuating rod and the connecting rod, the swing of the swing rod causes the change of the resistance of the slide rheostat access current loop, and further causes the change of the current magnitude of the current loop, and whether the resistance of the slide rheostat access circuit is in a reasonable range can be known according to the current magnitude; after the elastic sheet is deformed and stretched, the clamping force of the conductive sheet on the movable contact is small, the contact sheet moves to one side close to the elastic sheet at the moment, and then the resistance of the slide rheostat connected into the current loop is increased through the actuating rod, the connecting rod, the fixed rod and the oscillating rod, so that the reading of the ammeter in the current loop is reduced. By observing the reading of the ammeter, the clamping force between the moving contact and the fixed contact of the isolating switch can be known. Bolt determine module's setting, after the bolt looseness, drive the rotation of response piece, and then transmit the pointer swing on making the angular surveying ware to the angular surveying ware through the flexible axle, the more loose of bolt, pointer swing angle is the bigger on the angular surveying ware, and it is less to the extrusion force of conducting strip to show the flexure strip, and then the clamping-force between the isolator moving and static contact is less. Whether the clamping force of the movable and static contacts of the isolating switch is reduced due to the looseness of the bolts can be known through the angle of the angle measurer. The magnitude of the clamping force is visually displayed through the magnitude of the angle values of the ampere meter and the angle measurer, so that visibility is realized, and electric power personnel can find out faults of the movable contact and the fixed contact of the isolating switch in time.
Claims (10)
1. The visual device for the clamping force of the outdoor high-voltage isolating switch is characterized by comprising an elastic sheet detection assembly, a bolt detection assembly, an ammeter and an angle measurer;
the elastic piece detection assembly comprises a mounting shell and a contact piece, the mounting shell is fixed on the inner wall of the static contact, a supporting guide rod is arranged between the contact piece and the mounting shell, the contact piece and the elastic piece are always kept in contact under the action of the supporting guide rod, and an actuating rod is arranged on the end face of the contact piece; a swing rod is hinged in the mounting shell, a fixed rod is fixed at one end of the swing rod, and the fixed rod is hinged with the actuating rod through a connecting rod; a slide rheostat is arranged in the mounting shell, a connecting piece is arranged between the other end of the swing rod and a sliding sheet of the slide rheostat, and the swing rod drives the sliding sheet of the slide rheostat to move through the connecting piece when swinging; the side wall of the swing rod is provided with a flexible shaft, and the flexible shaft driving the side wall of the swing rod synchronously rotates around the axis of the flexible shaft when the swing rod rotates;
the bolt detection assembly comprises an installation block positioned on the inner wall of the static contact, an induction block is arranged in the installation block and synchronously acts with the bolt, a flexible shaft is fixed on the induction block, and the bolt drives the flexible shaft on the induction block to rotate around the axis of the bolt when rotating;
the ammeter, the sliding rheostat, the fixed resistor and the power supply form a current loop, and when the clamping force between the conducting strip and the moving contact is changed, the oscillating bar swings to enable the sliding rheostat to be connected with the resistance change of the current loop, so that the reading of the ammeter is changed; the angle measurer is provided with a pointer and scale marks, the pointer and the driven gear are coaxially arranged, a driving gear meshed with the driven gear is arranged in the angle measurer, the driving gear is fixedly connected with the flexible shaft, and the scale marks are arranged at equal intervals along an arc taking the center of the driven gear as the circle center.
2. The outdoor high-voltage disconnector clamping force visualization device as claimed in claim 1, wherein the side wall of the mounting shell is provided with a notch, the notch is provided with a retractable sheath, and the contact piece is located inside the sheath and is fixed in contact with the end of the sheath.
3. The visualization device for the clamping force of the outdoor high-voltage isolating switch according to claim 1, wherein the supporting guide rod comprises a fixed rod, a moving rod and a contact spring, the fixed rod is fixedly connected with the side wall of the installation shell, one end of the moving rod extends into the inner side of the fixed rod, and the contact spring is arranged between one end of the moving rod and the fixed rod.
4. The outdoor high-voltage isolating switch clamping force visualization device according to claim 1, wherein a hinged shaft is fixed on the swing link, the hinged shaft is hinged to the installation shell, and the distance from the hinged shaft to the other end of the swing link is 10-20 times the distance from the hinged shaft to one end of the swing link.
5. The visualization device for the clamping force of the outdoor high-voltage isolating switch as claimed in claim 1, wherein the number of the contact pieces is the same as that of the elastic pieces on the static contact, and the contact pieces are in one-to-one correspondence with the elastic pieces.
6. The outdoor high-voltage isolating switch clamping force visualization device as claimed in claim 1, wherein there are two supporting guide rods between the contact plate and the mounting housing, and the two supporting guide rods are located at two diagonal positions of the mounting housing, and the actuating rod is located at the center of the mounting housing.
7. The outdoor high-voltage isolating switch clamping force visualization device as claimed in claim 1, wherein a sliding piece of the slide rheostat is provided with a sliding block, the sliding block extends into a sliding groove at the other end of the swing rod, and the swing rod drives the sliding block to move along a guide rod of the slide rheostat when swinging.
8. The visualization device for the clamping force of the outdoor high-voltage isolating switch according to claim 1, wherein a shaft groove is formed in the mounting block, a flexible shaft of the sensing block passes through the shaft groove and then extends out of the mounting block, and passes through a side wall of the static contact and then extends into the sleeve, and the sleeve is fixedly connected with the side wall of the static contact.
9. The outdoor high-voltage isolating switch clamping force visualization device as claimed in claim 1, wherein the sensing block has a hexagonal socket on an end face, and a nut of a bolt on the static contact is inserted into the hexagonal socket during installation.
10. The outdoor high-voltage isolating switch clamping force visualization device as claimed in claim 9, wherein a spring groove is formed in the mounting block, the sensing block is located in the spring groove, a spring seat is formed in the spring groove, the spring seat is fixedly connected with one end of a follower spring, one end of the follower spring is fixedly connected with the inner wall of the spring groove, a rotating ring is arranged on the end face of the sensing block, and the rotating ring is rotatably connected with the spring seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210732562.XA CN115165187B (en) | 2022-06-27 | 2022-06-27 | Visual device for clamping force of outdoor high-voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210732562.XA CN115165187B (en) | 2022-06-27 | 2022-06-27 | Visual device for clamping force of outdoor high-voltage isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115165187A true CN115165187A (en) | 2022-10-11 |
| CN115165187B CN115165187B (en) | 2024-04-26 |
Family
ID=83487984
Family Applications (1)
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| CN202210732562.XA Active CN115165187B (en) | 2022-06-27 | 2022-06-27 | Visual device for clamping force of outdoor high-voltage isolating switch |
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Cited By (1)
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| CN116893339A (en) * | 2023-08-10 | 2023-10-17 | 湘南学院 | High-voltage isolating switch fault diagnosis device |
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| CN115165187B (en) | 2024-04-26 |
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