CN111613473A - Slow-closing type outdoor alternating-current high-voltage isolating switch with built-in fracture - Google Patents
Slow-closing type outdoor alternating-current high-voltage isolating switch with built-in fracture Download PDFInfo
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- CN111613473A CN111613473A CN202010461457.8A CN202010461457A CN111613473A CN 111613473 A CN111613473 A CN 111613473A CN 202010461457 A CN202010461457 A CN 202010461457A CN 111613473 A CN111613473 A CN 111613473A
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- locking
- main
- switch
- isolating switch
- closing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/08—Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a slow-closing type outdoor alternating-current high-voltage isolating switch with a built-in fracture, which comprises a main loop unit, a main frame piece, an operating unit, an operating handle and an interlocking transmission unit, wherein the main loop unit is connected with a main switch through a connecting row and used for controlling the opening and closing of the isolating switch, the main frame piece is connected with the main loop unit and used for placing the main switch, the operating unit is used for driving the main loop unit to act and implement the opening and closing of the isolating switch, the operating handle is connected with the operating unit and used for outputting the opening and closing actions, the interlocking transmission unit is connected with the main loop unit through a synchronizing shaft, wherein the interlocking transmission unit and the operation unit are coaxially arranged, the interlocking transmission unit is linked with the operation unit to realize the opening and closing of the isolating switch when the main switch is at the opening position, and meanwhile, when the isolating switch is in an opening or closing position, the interlocking transmission unit unlocks the main switch and can operate the main switch to realize opening and closing. The main loop unit, the interlocking transmission unit, the operation unit, the main frame member and the connecting row are all produced as independent mechanisms, and are assembled through set positions without sequence, so that the whole isolating switch can be formed, and the production and assembly processes are simplified.
Description
Technical Field
The invention relates to an isolating switch, in particular to a slow-closing type outdoor alternating-current high-voltage isolating switch with a built-in fracture.
Background
The distribution network overhead transmission line is a main transmission mode of electric energy, occupies a majority of proportion in the field of distribution network electric energy transmission, and the outdoor pole-mounted switch is an important component of the distribution network overhead transmission line and bears multiple functions of electric energy such as control, protection, distribution, maintenance safety and the like; the exposed conductor in the overhead transmission line is a main factor causing transient faults such as single-phase earth faults, the cables of the overhead line newly constructed at present are all insulated cables, the outer layer of the conductor is an insulating layer, and most of connecting parts of the overhead line, a switch and the like are covered with a silicon rubber protective sleeve, so that transient faults caused by branches, bird damage and the like can be avoided under the condition of preventing contact parts from aging. At present, isolating switches of overhead lines are in a contact mode of an external disconnecting link and a contact, all circuits at the arrival point of the isolating switch contact connection and the like are exposed in the air, and particularly in environments of high humidity, acidic atmosphere and the like, aging of a main circuit, particularly the contact, is aggravated, so that unstable closing is caused, and further faults of contact heating, burning loss and the like are caused; the external contact structure is directly exposed in the air, and is influenced by environmental and weather factors, so that the contact resistance is increased due to the oxidation corrosion of the contact, the contact is overheated and burnt due to abnormal temperature rise of the contact part of the contact, and the operating torque of the isolating switch is suddenly increased due to dirt such as accumulated dust and oxides among the contacts of the external isolating switch, even the switching on and off of the switch equipment is unreliable, so that the continuity of power supply is influenced.
The transmission part of the existing overhead isolating switch adopts a manual auxiliary spring to drive the isolating switch to be switched on and switched off, the contact condition of a disconnecting link contact changes, the influence on the change of operating force and the like is large, the situations such as switching-on not in place and the like easily occur, the existing isolating switch structure interlocking is unidirectional locking, namely, the main switch is unidirectional locking to the isolating switch, the operation of the main switch directly causes damage to the interlocking under the situation that the disconnecting link is not in place, and therefore finally faults such as the fact that the isolating switch cannot be operated or the isolating switch contact is burnt and damaged occur.
In addition, the connecting part of the movable end of the isolating switch configured by the strut switch is provided with an outlet terminal of the main switch, so that the long-time operation, abnormal operating force and other conditions of the isolating switch can cause certain influence on the main switch, and the faults such as insulation failure of the main switch and the like can be caused seriously; the existing isolating switch is complex in assembly process, a part of functional units of the isolating switch matched with a conventional strut type are parts of a main switch, and a foundation for independently assembling the isolating switch as a module is not provided.
Although the existing equipment manufacturing and manufacturing plants take measures such as reinforcing the structure of the existing column-type disconnecting switch, adding a protective sleeve, and the like, all the faults cannot be fundamentally avoided, and therefore, the above problems need to be solved.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a slow-type outdoor alternating-current high-voltage isolating switch with an internal fracture, wherein each module can be independently produced and then combined and installed to form a whole, and the bidirectional locking of a main switch on the isolating switch can be realized.
The technical scheme is as follows: in order to achieve the above purpose, the invention discloses a slow-closing type outdoor alternating-current high-voltage isolating switch with built-in fractures, which comprises a main loop unit, a main frame component, an operating unit, an operating handle and an interlocking transmission unit, wherein the main loop unit is connected with a main switch through a connecting row and used for controlling the opening and closing of the isolating switch, the main frame component is connected with the main loop unit and used for placing the main switch, the operating unit is used for driving the main loop unit to act and executing the opening and closing of the isolating switch, the operating handle is connected with the operating unit and used for outputting the opening and closing actions, the interlocking transmission unit is connected with the main loop unit through a synchronizing, wherein the interlocking transmission unit and the operation unit are coaxially arranged, the interlocking transmission unit is linked with the operation unit to realize the opening and closing of the isolating switch when the main switch is at the opening position, and meanwhile, when the isolating switch is in an opening or closing position, the interlocking transmission unit unlocks the main switch and can operate the main switch to realize opening and closing.
The main loop unit comprises an upper insulating cylinder, an upper contact connected with the upper end of the upper insulating cylinder in a sealing manner, a lower insulating cylinder connected with the upper insulating cylinder in a sealing manner, an aluminum base connected with the lower insulating cylinder in a sealing manner, a main transmission shaft penetrating through the lower insulating cylinder and connected with the lower insulating cylinder through a sealing flange, a connecting rod connected with the main transmission shaft at one end and the other end in sequence, an insulating pull rod and a nylon connecting lever of a movable knife switch, a spring contact finger positioned on the movable knife switch, and an indicating connecting rod connected with an indicator capable of extending out of the lower insulating cylinder at the other end connected with the middle part of the nylon connecting lever, wherein an opening for the indicator to penetrate out is formed in the lower part of the lower insulating cylinder, the indicating cover for sealing connection is arranged at the opening, and an indicating protection plate for protecting the indicating cover.
Preferably, the operation unit comprises a closed shell assembly, a frame assembly located in the closed shell assembly, a transmission shaft assembly arranged on the frame assembly in a penetrating mode through a bearing and connected with an operation handle, a limiting adjusting assembly for achieving opening and closing limiting and a locking assembly for achieving opening and closing position locking, the operation handle outputs torque to drive the transmission shaft assembly to rotate, and the hexagonal shaft drives the main loop unit to achieve opening and closing of the isolating switch.
Furthermore, the seal shell subassembly includes preceding shrouding, the back shrouding that is connected with preceding shrouding through locking screw and cover establish the protection bearing housing that is connected with preceding shrouding on the transmission shaft subassembly, and this protection bearing housing outer bore is arranged in preceding shrouding hole and outer hole step cooperatees with preceding shrouding and realizes spacingly, and the hole of protection bearing housing is connected with the transmission shaft subassembly through spacing retaining ring and realizes protection bearing housing axial fixity.
Further, the frame subassembly includes the splint of two relative settings, is used for wearing to establish the spacing fixed column of two splint and is used for the installation double-screw bolt and the nut of fixed splint, and wherein spacing fixed column has and is used for splint location and spacing direction cooperation axle and spacing terminal surface.
Preferably, the transmission shaft assembly comprises a main shaft, a transmission crank arm penetrating through the main shaft, a limiting baffle plate positioned in the middle of the transmission crank arm and matched with the limiting adjusting assembly, and locking shafts positioned on two sides of the front end of the transmission crank arm and respectively matched with the locking assemblies.
Furthermore, spacing adjusting part is connected the spacing adjusting bolt who is used for spacing switching-on position and sets up the spacing post that is used for spacing branch floodgate position on frame subassembly including wearing to locate the fixed square shaft on the frame subassembly, through the nut with fixed square shaft.
Furthermore, locking Assembly is including being located the locking unit that divides the floodgate position and close the floodgate position respectively, and this locking unit includes that two intervals certain distance set up the locking pin on the splint, wear to establish the locking gyro wheel on the locking pin, be located on the splint with the extension spring peg that the locking pin one-to-one set up and one end collude on the locking pin and the other end colludes the locking extension spring on the extension spring peg.
Preferably, the interlocking transmission unit comprises a driving crank arm coaxially arranged with the operation unit, a first connecting rod and a driving slider sequentially connected with a crank end of the driving crank arm, a lock rod is penetrated through the surface of the driving slider vertically, the end part of the lock rod is connected with a guiding elastic pin for limiting the lock rod, a first guide plate is connected between the lock rod and the main frame member and extends into the main frame member, a driving rod is connected with the lock rod positioned in the main frame member, a limiting baffle card, a mounting plate, a reset spring and a first sliding locking plate capable of moving along the lock rod are sequentially penetrated through the driving rod, one end of the reset spring is abutted against the first sliding locking plate, the other end of the reset spring is abutted against the mounting plate, the first sliding locking plate is provided with a track groove and a horizontal guide groove which are matched with a motion track in the opening and closing process of the isolating switch, and an opening and closing drive plate capable of sliding and closing the main switch is penetrated, a first guide pin penetrates through the horizontal guide groove; the other turning of drive connecting lever is served and is connected gradually second connecting rod and second slip jam plate, wear to be equipped with the second uide pin that can remove along its spout perpendicularly on this second slip jam plate, be connected with the second deflector between this second uide pin and the main frame spare, the main switch locking lever that stretches out or withdraw is worn to be equipped with by main switch drive to the center pin department of second deflector, under the state that the main switch locking lever stretches out, the second slides the jam plate and is locked and blockking the rotation of drive connecting lever between second uide pin and the main switch locking lever.
Furthermore, the surface of the driving slide block is provided with a driving sliding groove for driving the lock rod to move along the thickness direction of the driving slide block.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:
(1) the interlocking transmission unit is designed for bidirectional interlocking of the isolating switch and the main switch, on one hand, the interlocking transmission unit can ensure that the isolating switch can be operated when the main switch is at an opening position to realize interlocking of the main switch on the isolating switch, and on the other hand, the position state of the isolating switch is taken as a limiting condition for the operation of the main switch to ensure that the main switch can be operated only when the isolating switch is completely in an opening or closing state to realize interlocking of the main switch by the isolating switch.
(2) The operation unit accurately limits the opening and closing positions of the isolating switch, and the auxiliary locking assembly can effectively lock the main shaft in the transmission shaft assembly at the opening or closing position;
(3) the limit adjusting assembly can automatically adjust the switching-on position, and meets the differentiation requirement of each device;
(4) the locking assembly is of an elastic force driven self-resetting double-roller structure, a locking shaft enters the middle area of the double-locking roller when in a locking position, the double-locking roller is positioned at a fan-shaped groove of the transmission crank arm, and the pressure angle between the locking roller and the fan-shaped groove is 20-50 degrees when in the locking position;
(5) the operation unit is of an independent structure, and the main output shaft of the operation unit and the interlocking transmission unit are coaxially arranged, so that the interlocking device has the advantages of simple structure, reliability in interlocking and the like;
(6) the main loop unit, the interlocking transmission unit, the operation unit, the main frame member and the connecting row are all produced as independent mechanisms, and are assembled through set positions without sequence to form the whole isolating switch, so that the production and assembly processes are simplified;
(7) the main loop unit seals the isolated fracture in a closed air chamber formed by epoxy parts, the isolated fracture is orderly connected through an internal main transmission shaft, a nylon crank arm, a connecting rod, an insulating pull rod and the like to form a transmission part, and meanwhile, a direct-acting connected indicator is arranged on the main nylon crank arm to indicate the opening state, so that the state indication of each phase can be clearly observed; the problems of aging and the like of the isolating switch exposed to the atmosphere can be effectively avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a first cross-sectional view of the main circuit unit of the present invention;
FIG. 5 is a second cross-sectional view of the main circuit unit of the present invention;
FIG. 6 is a front view of the main circuit unit of the present invention;
FIG. 7 is a front view of the close housing assembly of the operating unit of the present invention;
FIG. 8 is a side view of the close housing assembly of the operating unit of the present invention;
FIG. 9 is a sectional view of an operation unit in the present invention;
FIG. 10 is a schematic view of the operating unit of the present invention with the closure housing assembly removed;
FIG. 11 is a schematic view of the FIG. 10 cleat shown with one side removed;
FIG. 12 is a top view of FIG. 10;
FIG. 13 is a schematic view of the construction of the driveshaft assembly of the operating unit of this invention;
FIG. 14 is a schematic structural view of the interlock driving unit of the present invention with the disconnector in the open position;
FIG. 15 is a schematic diagram of the state of the lock lever when the disconnecting switch is in the opening and closing position according to the present invention;
FIG. 16 is a schematic structural view of the interlock driving unit of the present invention with the disconnector in the on position;
FIG. 17 is a schematic view of the locking lever of the isolator switch of the present invention in the neutral position;
fig. 18 is a schematic structural view of a driving slider of the interlocking transmission unit of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
As shown in fig. 1, 2 and 3, the slow-closing type built-in fracture outdoor alternating-current high-voltage isolating switch comprises a main circuit unit 100, a main frame member 300, an operating unit 200, an operating handle 400, an interlocking transmission unit 500 and a connecting row 600, wherein the main switch 700 is arranged above the main frame member 300, the main circuit unit 100 is used for controlling the opening and closing of the isolating switch, the main circuit unit 100 is connected with the main switch 700 through the connecting row 600, the main circuit unit 100 is connected with the main frame member 300 through a bolt, the operating unit 200 is connected with the main circuit unit through a driving crank arm, the operating unit 200 is used for driving the main circuit unit to perform the opening and closing of the isolating switch, the operating handle 400 is connected with the operating unit 200 through a set elastic pin, the operating handle 400 is used for outputting a torque for performing the opening and closing of the isolating switch, the interlocking transmission unit 500 is connected with the main circuit unit 100 through a synchronous shaft, the interlocking transmission unit 500 is used for realizing bidirectional locking of the main switch to the isolating switch; the interlocking transmission unit 500 and the operation unit 200 are coaxially arranged, and the output shaft of the operation unit and the output shaft of the interlocking transmission unit have the same structure and size, so that the connection and torque transmission structure between the operation unit and the interlocking transmission unit is a through type non-circular tubular structure, and the cross section of the tubular connector can be a square, a rectangular spline, an involute spline and other cross sections; when the main switch is in the opening position, the interlocking transmission unit is linked with the operation unit to realize opening and closing of the isolating switch, and when the isolating switch is in the opening or closing position, the interlocking transmission unit unlocks the main switch and can operate the main switch to realize opening and closing.
As shown in fig. 4, 5 and 6, the main circuit unit 100 of the present invention includes an upper insulating cylinder 101, an upper contact 102, a lower insulating cylinder 103, an aluminum base 104, a sealing flange 105, a main transmission shaft 106, a connecting rod 107, an insulating pull rod 108, a moving knife gate 109, a nylon crank arm 110, a spring contact finger 111, an indicator 112, an indication connecting rod 113, an indication cover 114, an indication guard plate 115, an upper outlet row 116, a first O-ring 117, a rectangular sealing ring 118, a second O-ring 119, a buffer layer 120, a strap contact finger 121, and a buffer pad 122.
The upper insulating cylinder 101 and the lower insulating cylinder 103 are in sealed connection through a first O-shaped sealing ring 117, the upper contact 102 is in sealed connection with the upper end of the upper insulating cylinder 101, the top of the upper insulating cylinder 101 is connected with an upper outgoing line row 116, the aluminum base 104 is in sealed connection with the lower insulating cylinder 103 through a rectangular sealing ring 118 and a bolt, the lower part of the lower insulating cylinder 103 is provided with an opening through which the indicator 112 can penetrate, the opening is in sealed connection with the indicating cover 114 through a second O-shaped sealing ring 119, and the indicating cover 114 is made of transparent materials so that the internal condition of the indicating cover can be observed; the main transmission shaft 106 penetrates through the lower insulating cylinder 103 and is in sealing connection with the lower insulating cylinder 103 through a sealing flange 105; the upper insulating cylinder 101, the upper contact 102, the lower insulating cylinder 103, the aluminum base 104, the sealing flange 105, the main transmission shaft 106, the indicating cover 114, the first O-shaped sealing ring 117, the rectangular sealing ring 118 and the second O-shaped sealing ring 119 form a sealed air chamber.
One end of a nylon connecting lever 107 is connected with a main transmission shaft 106, the other end of the nylon connecting lever 107 is sequentially connected with a connecting rod 107, an insulating pull rod 108 and a movable knife switch 109, spring contact fingers 111 are positioned at two ends of the movable knife switch 109, a buffer layer 120 is arranged between the spring contact fingers 111 positioned at the upper end of the movable knife switch and an upper contact 102, and a watchband contact finger 121 and a buffer pad 122 are arranged between the spring contact fingers 111 positioned at the lower end of the movable knife switch and the insulating pull rod 108. One end of an indication connecting rod 113 is connected with the middle part of the nylon crank arm 110, the other end of the indication connecting rod 113 is connected with an indicator 112, and the indicator 112 extends out of the lower insulating cylinder through an opening on the lower insulating cylinder and extends into an indication cover 114; the lower portion of the lower insulating cylinder 103 is further provided with an indication shield plate 115 for protecting the indication cover. The connecting rod 107, the insulating pull rod 108, the moving knife brake 109, the nylon crank arm 110, the spring contact finger 111 and the indicating connecting rod 113 are all positioned in a sealed air chamber. The operating unit 200 drives the main transmission shaft 106 to rotate through the hexagonal shaft, drives the nylon crank arm 107 to rotate, and further drives the insulating pull rod 108 to move up and down to enable the movable disconnecting link 109 to be located at an upper end switching-on position or a lower end switching-off position; meanwhile, the indicator 112 is driven to move up and down, and the opening and closing state of the isolating switch is judged by observing the state of the indicator 112 in the transparent indicating cover 114.
The operation unit 200 comprises a closed shell assembly, a frame assembly positioned in the closed shell assembly, a transmission shaft assembly which is arranged on the frame assembly in a penetrating mode through a bearing 220 and connected with an operation handle, a limiting and adjusting assembly for realizing opening and closing limiting and a locking assembly for realizing opening and closing position locking, wherein the operation handle outputs torque to drive the transmission shaft assembly to rotate, and a hexagonal shaft drives a main loop unit to realize opening and closing of an isolating switch.
As shown in fig. 7 and 8, the close housing assembly of the present invention includes a front close plate 201, a locking screw 202, a rear close plate 203, a protection bearing sleeve 204 and a limit retainer ring 205, the rear close plate 203 is connected with the front close plate 201 through an embedded fit and the locking screw 202, the protection bearing sleeve 204 is sleeved on a transmission shaft assembly and connected with the front close plate 201, an outer hole of the protection bearing sleeve 204 is located in a hole of the front close plate and a step of the outer hole is matched with the front close plate to realize limit, and an inner hole of the protection bearing sleeve 204 is connected with the transmission shaft assembly through the limit retainer ring 05 to realize axial fixation of the protection bearing sleeve.
As shown in fig. 9, the frame assembly of the present invention includes a clamping plate 206, a fixing post 207, a mounting stud 208 and a nut, the two clamping plates 206 are oppositely disposed, the fixing post 207 is inserted into the two clamping plates 206, the fixing post 207 has a guiding fitting shaft and a limiting end surface for positioning and limiting the clamping plates, and the clamping plates are fixed by the mounting stud 208 and the nut.
As shown in fig. 13, the transmission shaft assembly of the present invention includes a main shaft 209, a transmission crank arm 210, a limit baffle 211 and a locking shaft 212, the transmission crank arm 210 is inserted into the main shaft 209, the main shaft 209 can drive the transmission crank arm 210 to rotate, the limit baffle 211 is located in the middle of the transmission crank arm and is matched with the limit adjusting assembly to achieve the limitation of the switching-on position, and the locking shaft 212 is located at two sides of the front end of the transmission crank arm 210 and is respectively matched with the locking assembly to achieve the locking of the switching-on and switching-off position.
As shown in fig. 9 and 10, the limiting adjustment assembly of the present invention includes a fixed square shaft 213, a limiting adjustment bolt 214 and a limiting post 215, the fixed square shaft 213 is disposed on the frame assembly in a penetrating manner, the limiting adjustment bolt 214 is connected with the fixed square shaft 213 through a nut for limiting the switching-on position, and the pre-adjustment of the limiting adjustment bolt 214 can realize the forward and backward movement of the switching-on position, so as to meet the differentiation requirement of each device. The spacing post 215 is disposed on the frame assembly for spacing the brake-off position.
As shown in fig. 10, 11 and 12, the locking assembly of the present invention includes locking units respectively located at a brake opening position and a brake closing position, the locking unit includes locking pins 216, locking rollers 217, tension spring hanging shafts 218 and locking tension springs 219, the two locking pins 216 are arranged on the clamping plate at a certain distance, the locking rollers 217 are arranged on the locking pins 216 in a penetrating manner, and the two tension spring hanging shafts 218 are located on the clamping plate and arranged corresponding to the locking pins 216 one to one; one end of a locking tension spring 219 is hooked on the locking pin 216, and the other end is hooked on a tension spring hanging shaft 218.
The operating unit 200 inputs torque to the main shaft 209 of the transmission shaft component through the operating handle 400, drives the main shaft 209 to rotate, drives the transmission connecting lever 210 to rotate, and when the locking shaft 212 at the upper end of the transmission connecting lever 210 rotates to the upper end switching-on position, the locking shaft reaches the position preset by the limit adjusting bolt 214, and the switching-on position can realize the back and forth movement of a switching-on point through the limit adjusting bolt 214, so that the requirement of differentiation of each device is met; meanwhile, the locking shaft 212 in the transmission shaft component overcomes the pretension force of the locking tension spring 219 and enters between two locking rollers 217 of the locking unit, and the brake closing position is limited and locked. Similarly, the locking shaft 212 rotates at the lower end of the transmission crank arm 210 in the reverse direction to reach the limiting column 215 at the lower end, when the brake separating position is reached, the locking shaft 212 in the transmission shaft part overcomes the pretension force of the locking tension spring 219 and enters between two locking rollers 217 of the locking unit, and the limitation and locking of the brake separating are realized through the limiting column 215 and the locking rollers 217; when the locking position is carried out, the locking shaft enters the middle area of the double-locking roller, the double-locking roller is located in the fan-shaped groove of the transmission crank arm, and the pressure angle between the locking roller and the fan-shaped groove is 20-50 degrees when the locking position is carried out.
As shown in fig. 14, 15, 16 and 17, the interlock transmission unit 500 of the present invention includes a driving crank arm 501, a first link 502, a driving slider 503, a lock lever 504, a guide elastic pin 505, a first guide plate 506, a driving lever 507, a limit stopper 508, a mounting plate 509, a return spring 510, a first slide lock plate 511, a switching drive plate 514, a first guide pin 515, a second link 516, a second slide lock plate 517, a second guide pin 518, a second guide plate 519, and a main switch lock lever 520.
The driving crank arm 501 is coaxially arranged with the transmission shaft assembly of the operation unit 200, a first connecting rod 502 and a driving slider 503 are sequentially connected to a crank end of the driving crank arm 501, a driving sliding groove 521 for driving the lock rod to move along the thickness direction of the driving slider is formed in the surface of the driving slider 503, and the driving sliding groove 521 is a trapezoidal groove as shown in fig. 18. The locking rod 504 is vertically arranged on the driving slide block 503 in a penetrating way, one end part of the locking rod 504 is provided with a guiding elastic pin 505 for limiting the locking rod, the other end part of the locking rod 504 extends into the main frame, and a first guiding plate 506 is connected between the locking rod 504 and the frame component. A driving lever 507 is connected to the lock lever 504 in the main frame member, a stopper 508, a mounting plate 509, a return spring 510, and a first slide lock plate 511 movable along the lock lever 504 are sequentially inserted into the driving lever 507, and one end of the return spring 510 abuts against the first slide lock plate 511 and the other end abuts against the mounting plate 509. The first sliding locking plate 511 is provided with a track groove 512 and a horizontal guide groove 513, wherein the track groove 512 is matched with a motion track of the isolating switch in a switching-on and switching-off process, the track groove 512 comprises an arc-shaped groove and a middle groove, a stroke column on the switching-on and switching-off driving plate 514 penetrates through the track groove 512, and a first guide pin 515 penetrates through the horizontal guide groove 513. The interlock logic one of the interlock transmission unit 500 is: the transmission shaft assembly of the operation unit 200 outputs torque to drive the main loop unit to perform the disconnecting and closing operation of the disconnecting switch and simultaneously drive the driving crank arm 501 to rotate, the driving crank arm 501 drives the first connecting rod 502 and the driving slider 503 to move, the driving slider 503 drives the lock rod 504 to move obliquely upwards along the inclined plane of the trapezoidal groove of the driving chute 521 of the driving slider 503 while moving, so that the driving lock rod 504 performs linear motion along the direction vertical to the surface of the driving slider 503, that is, the lock rod 504 is driven to extend out of the surface of the first guide plate 506, and the lock rod 504 drives the driving rod 507 and the first sliding lock plate 511 to move horizontally; when the isolating switch is in the opening or closing position, the lock rod 504 moves upwards to the upper surface along the inclined plane of the trapezoidal groove on the driving chute 521, namely, the isolating switch is in the position shown in fig. 15, the lock rod 504 extends out of the surface of the first guide plate 506 to drive the first sliding lock plate 511 to move rightwards, at the moment, the stroke column on the opening and closing drive plate 514 abuts against and slides in the arc-shaped groove of the track groove 512, the opening and closing drive plate 514 is released, and the main switch can be freely driven to realize the opening and closing of the main switch; when the opening and closing of the isolating switch are not in place, as shown in fig. 17, when the isolating switch is in the intermediate state, the lock rod 504 drives the first sliding lock plate 511 to move leftward, at this time, the stroke column on the opening and closing drive plate 514 abuts against the middle position groove of the track groove 512, the opening and closing drive plate 514 is locked, and the main switch cannot be driven to realize opening and closing; the first slide lock plate 511 directly feeds back the position state of the output shaft of the slow-closure type operating mechanism; meanwhile, the main switch can be operated only when the isolating switch is completely in an opening or closing state, and the interlocking of the isolating switch to the main switch is realized.
The other end of the driving crank arm 501 of the invention is connected with a second connecting rod 516 and a second sliding lock plate 517 in sequence, a second guide pin 518 which can move along the sliding groove of the second sliding lock plate 517 vertically penetrates through the second sliding lock plate 517, a second guide plate 519 is connected between the second guide pin 518 and the main frame member, a main switch lock rod 520 which is driven by a main switch to extend or retract is penetrated through the central shaft of the second guide plate 519, the main switch lock rod 520 is driven to extend when the main switch is in a closing state, and the second sliding lock plate 517 is locked between the second guide pin 518 and the main switch lock rod 520 to block the rotation of the driving crank arm; when the main switch belongs to the opening position, the main switch lock rod 520 is driven to retract, the second sliding lock plate 517 is released, the driving crank arm 501 can rotate freely, and when the main switch is at the opening position, the isolating switch can freely operate opening and closing, so that the interlocking of the main switch on the isolating switch is realized.
The slow-type built-in fracture outdoor alternating-current high-voltage isolating switch can be used independently or can be used as a part of a pillar-type on-pillar switch, so that the problems in the prior art can be avoided perfectly, the debugging process can be simplified, and the manufacturing efficiency can be improved.
Claims (10)
1. The utility model provides an outdoor high voltage isolator that exchanges of built-in fracture of slow-closing type which characterized in that: comprises a main loop unit (100) which is connected with a main switch through a connecting row (600) and is used for controlling the opening and closing of an isolating switch, a main frame component (300) which is connected with the main loop unit and is used for placing the main switch, an operating unit (200) which is used for driving the main loop unit to act and implementing the opening and closing of the isolating switch, an operating handle (400) which is connected with the operating unit and is used for outputting the opening and closing action, and an interlocking transmission unit (500) which is connected with the main loop unit through a synchronizing shaft and is used for implementing the bidirectional locking of the main switch to the isolating switch, wherein the interlocking transmission unit (500) and the operation unit (200) are coaxially arranged, the interlocking transmission unit is linked with the operation unit to realize the opening and closing of the isolating switch when the main switch is at the opening position, and meanwhile, when the isolating switch is in an opening or closing position, the interlocking transmission unit unlocks the main switch and can operate the main switch to realize opening and closing.
2. The slow-acting type outdoor alternating-current high-voltage isolating switch with a built-in fracture as claimed in claim 1, wherein: the main loop unit (100) comprises an upper insulating cylinder (101), an upper contact (102) connected with the upper end of the upper insulating cylinder in a sealing way, a lower insulating cylinder (103) connected with the upper insulating cylinder in a sealing way, an aluminum base (104) connected with the lower insulating cylinder in a sealing way, a main transmission shaft (106) penetrating through the lower insulating cylinder and connected with the lower insulating cylinder through a sealing flange (105), a connecting rod (107) with one end connected with the main transmission shaft and the other end connected with the connecting rod (107), an insulating pull rod (108) and a nylon crank arm (110) of a movable knife switch (109) in sequence, a spring contact finger (111) positioned on the movable knife switch and an indicating connecting rod (113) with one end connected with the middle part of the nylon crank arm and the other end connected with an indicator (112) capable of extending out of the lower insulating cylinder, wherein the lower part of the lower insulating, the opening is hermetically connected with an indicating cover (114), and the lower part of the lower insulating cylinder (103) is also provided with an indicating protection plate (115) for protecting the indicating cover.
3. The slow-acting type outdoor alternating-current high-voltage isolating switch with a built-in fracture as claimed in claim 1, wherein: the operation unit (200) comprises a closed shell assembly, a frame assembly located in the closed shell assembly, a transmission shaft assembly arranged on the frame assembly in a penetrating mode through a bearing and connected with an operation handle, a limiting adjusting assembly for achieving opening and closing limiting and a locking assembly for achieving opening and closing position locking, the operation handle outputs torque to drive the transmission shaft assembly to rotate, and the hexagonal shaft drives the main loop unit to achieve opening and closing of the isolating switch.
4. The slow-acting type outdoor alternating-current high-voltage isolating switch with the built-in fracture as claimed in claim 3, wherein: the closed shell assembly comprises a front sealing plate (201), a rear sealing plate (203) and a protective bearing sleeve (204), wherein the rear sealing plate (203) is connected with the front sealing plate through a locking screw (202), the protective bearing sleeve (204) is sleeved on the transmission shaft assembly and is connected with the front sealing plate, an outer hole of the protective bearing sleeve (204) is located in a front sealing plate hole, an outer hole step is matched with the front sealing plate to achieve limiting, and an inner hole of the protective bearing sleeve (204) is connected with the transmission shaft assembly through a limiting check ring (205) to achieve axial fixing of the protective bearing sleeve.
5. The slow-acting type outdoor alternating-current high-voltage isolating switch with the built-in fracture as claimed in claim 3, wherein: the frame assembly comprises two oppositely arranged clamping plates (206), a limiting fixing column (207) used for penetrating the two clamping plates, and a mounting stud (208) and a nut used for fixing the clamping plates, wherein the limiting fixing column (207) is provided with a guiding matching shaft and a limiting end face used for positioning and limiting the clamping plates.
6. The slow-acting type outdoor alternating-current high-voltage isolating switch with the built-in fracture as claimed in claim 3, wherein: the transmission shaft assembly comprises a main shaft (209), a transmission crank arm (210) penetrating through the main shaft, a limiting baffle (211) positioned in the middle of the transmission crank arm and matched with the limiting adjusting assembly, and locking shafts (212) positioned on two sides of the front end of the transmission crank arm and respectively matched with the locking assemblies.
7. The slow-acting type outdoor alternating-current high-voltage isolating switch with the built-in fracture as claimed in claim 3, wherein: the limiting adjusting assembly comprises a fixed square shaft (213) arranged on the frame assembly in a penetrating mode, a limiting adjusting bolt (214) connected with the fixed square shaft through a nut and used for limiting the switching-on position, and a limiting column (215) arranged on the frame assembly and used for limiting the switching-off position.
8. The slow-acting type outdoor alternating-current high-voltage isolating switch with the built-in fracture as claimed in claim 3, wherein: the locking assembly comprises locking units which are respectively located at a brake separating position and a brake closing position, and each locking unit comprises two locking pins (216) which are arranged on the clamping plate at certain intervals, locking rollers (217) which are arranged on the locking pins in a penetrating mode, tension spring hanging shafts (218) which are arranged on the clamping plate in one-to-one correspondence with the locking pins, and locking tension springs (219) of which one ends are hooked on the locking pins and the other ends are hooked on the tension spring hanging shafts.
9. The slow-acting type outdoor alternating-current high-voltage isolating switch with a built-in fracture as claimed in claim 1, wherein: the interlocking transmission unit (500) comprises a driving crank arm (501) coaxially arranged with the operation unit, a first connecting rod (502) and a driving sliding block (503) are sequentially connected with one crank end of the driving crank arm (501), a locking rod (504) penetrates through the surface of the driving sliding block perpendicular to the driving sliding block (503), the end of the locking rod (504) is connected with a guiding elastic pin (505) used for limiting the locking rod, a first guide plate (506) is connected between the locking rod (504) and a main frame member, the locking rod extends into the main frame member, a driving rod (507) is connected onto the locking rod (504) positioned in the main frame member, a limiting stopper clamp (508), a mounting plate (509), a reset spring (510) and a first sliding locking plate (511) capable of moving along the locking rod are sequentially penetrated onto the driving rod, one end of the reset spring (510) abuts against the first sliding locking plate, the other end of the reset spring abuts against the mounting plate, a track (512) matched with a motion track in a closing and closing process of the isolating switch is The track groove (512) is provided with a switching-on and switching-off drive plate (514) which can slide and is used for realizing switching-on and switching-off of the main switch in a penetrating way, and the horizontal guide groove (513) is provided with a first guide pin (515) in a penetrating way; the other corner of the driving crank arm (501) is sequentially connected with a second connecting rod (516) and a second sliding locking plate (517), a second guide pin (518) capable of moving along a sliding groove of the second sliding locking plate (517) vertically penetrates through the second sliding locking plate, a second guide plate (519) is connected between the second guide pin (518) and the main frame piece, a main switch locking rod (520) driven by a main switch to extend or retract is penetrated through the central shaft of the second guide plate (519), and the second sliding locking plate (517) is locked between the second guide pin (518) and the main switch locking rod (520) to block the rotation of the driving crank arm in the extending state of the main switch locking rod (520).
10. The slow-acting outdoor alternating-current high-voltage isolating switch with the built-in fracture as claimed in claim 9, wherein: the surface of the driving slide block (503) is provided with a driving sliding chute (521) for driving the lock rod to move along the thickness direction of the driving slide block.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010461457.8A CN111613473B (en) | 2020-05-27 | 2020-05-27 | Slow-closing type outdoor alternating-current high-voltage isolating switch with built-in fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010461457.8A CN111613473B (en) | 2020-05-27 | 2020-05-27 | Slow-closing type outdoor alternating-current high-voltage isolating switch with built-in fracture |
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| CN111613473A true CN111613473A (en) | 2020-09-01 |
| CN111613473B CN111613473B (en) | 2022-11-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242506A (en) * | 2021-11-05 | 2022-03-25 | 河南平高电气股份有限公司 | Quick earthing switch |
| CN114530347A (en) * | 2022-04-24 | 2022-05-24 | 江苏大烨智能电气股份有限公司 | Interlocking device of disconnecting switch |
| CN116504575A (en) * | 2023-06-26 | 2023-07-28 | 福建美科信新材料科技有限公司 | Outdoor intelligent switch with multiple sequential conduction isolating switches |
| CN117275973A (en) * | 2023-11-21 | 2023-12-22 | 苏州科陆东自电气有限公司 | High stability switch circuit breaker |
| CN117275993A (en) * | 2023-09-26 | 2023-12-22 | 西安西电高压开关操动机构有限责任公司 | Commutation isolating switch operating mechanism and operating method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0388807A2 (en) * | 1989-03-22 | 1990-09-26 | Asea Brown Boveri Aktiengesellschaft | Section insulator with a sectioning insulator and a bridging part in the form of a hollow insulator |
| CN2575835Y (en) * | 2002-10-08 | 2003-09-24 | 李彤 | Lampwick integrated forming machine |
| CN202206029U (en) * | 2011-08-31 | 2012-04-25 | 湖南丰日电源电气股份有限公司 | Miniaturized integrated switch used for high voltage switch cabinet |
| CN102957098A (en) * | 2011-08-31 | 2013-03-06 | 湖南丰日电源电气股份有限公司 | Small integrated switch for high-voltage switch cabinet |
| CN203434515U (en) * | 2013-09-22 | 2014-02-12 | 戴顿（重庆）高压开关有限公司 | Disconnecting switch-circuit breaker combined electric appliance used for inflating cabinet |
| CN104299837A (en) * | 2013-07-19 | 2015-01-21 | 株式会社日立制作所 | Switchgear |
| CN204558299U (en) * | 2015-05-13 | 2015-08-12 | 浙江临高电气实业有限公司 | A kind of switch-cabinet grounding interlock |
| CN205376381U (en) * | 2016-03-04 | 2016-07-06 | 福建省宏科电力科技有限公司 | Electric isolation and ground connection interconnection device of intelligent combination on post |
| CN207651917U (en) * | 2017-12-22 | 2018-07-24 | 上海攀森电气设备有限公司 | A kind of novel shielding type solid insulation ring main unit |
| CN208781769U (en) * | 2018-08-30 | 2019-04-23 | 许昌永新电气有限公司 | A kind of built-in on-pole switch of outdoor one or two fusion isolation knifes |
| CN110634704A (en) * | 2019-09-06 | 2019-12-31 | 平高集团有限公司 | Quick earthing switch |
| CN210489514U (en) * | 2019-08-16 | 2020-05-08 | 南京海兴电网技术有限公司 | Modularized three-phase independent solid insulated switch |
-
2020
- 2020-05-27 CN CN202010461457.8A patent/CN111613473B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0388807A2 (en) * | 1989-03-22 | 1990-09-26 | Asea Brown Boveri Aktiengesellschaft | Section insulator with a sectioning insulator and a bridging part in the form of a hollow insulator |
| CN2575835Y (en) * | 2002-10-08 | 2003-09-24 | 李彤 | Lampwick integrated forming machine |
| CN202206029U (en) * | 2011-08-31 | 2012-04-25 | 湖南丰日电源电气股份有限公司 | Miniaturized integrated switch used for high voltage switch cabinet |
| CN102957098A (en) * | 2011-08-31 | 2013-03-06 | 湖南丰日电源电气股份有限公司 | Small integrated switch for high-voltage switch cabinet |
| CN104299837A (en) * | 2013-07-19 | 2015-01-21 | 株式会社日立制作所 | Switchgear |
| CN203434515U (en) * | 2013-09-22 | 2014-02-12 | 戴顿（重庆）高压开关有限公司 | Disconnecting switch-circuit breaker combined electric appliance used for inflating cabinet |
| CN204558299U (en) * | 2015-05-13 | 2015-08-12 | 浙江临高电气实业有限公司 | A kind of switch-cabinet grounding interlock |
| CN205376381U (en) * | 2016-03-04 | 2016-07-06 | 福建省宏科电力科技有限公司 | Electric isolation and ground connection interconnection device of intelligent combination on post |
| CN207651917U (en) * | 2017-12-22 | 2018-07-24 | 上海攀森电气设备有限公司 | A kind of novel shielding type solid insulation ring main unit |
| CN208781769U (en) * | 2018-08-30 | 2019-04-23 | 许昌永新电气有限公司 | A kind of built-in on-pole switch of outdoor one or two fusion isolation knifes |
| CN210489514U (en) * | 2019-08-16 | 2020-05-08 | 南京海兴电网技术有限公司 | Modularized three-phase independent solid insulated switch |
| CN110634704A (en) * | 2019-09-06 | 2019-12-31 | 平高集团有限公司 | Quick earthing switch |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114242506A (en) * | 2021-11-05 | 2022-03-25 | 河南平高电气股份有限公司 | Quick earthing switch |
| CN114242506B (en) * | 2021-11-05 | 2024-05-24 | 河南平高电气股份有限公司 | Quick grounding switch |
| CN114530347A (en) * | 2022-04-24 | 2022-05-24 | 江苏大烨智能电气股份有限公司 | Interlocking device of disconnecting switch |
| CN116504575A (en) * | 2023-06-26 | 2023-07-28 | 福建美科信新材料科技有限公司 | Outdoor intelligent switch with multiple sequential conduction isolating switches |
| CN116504575B (en) * | 2023-06-26 | 2023-09-15 | 福建美科信新材料科技有限公司 | Outdoor intelligent switch with multiple sequential conduction isolating switches |
| CN117275993A (en) * | 2023-09-26 | 2023-12-22 | 西安西电高压开关操动机构有限责任公司 | Commutation isolating switch operating mechanism and operating method thereof |
| CN117275973A (en) * | 2023-11-21 | 2023-12-22 | 苏州科陆东自电气有限公司 | High stability switch circuit breaker |
| CN117275973B (en) * | 2023-11-21 | 2024-02-06 | 苏州科陆东自电气有限公司 | High stability switch circuit breaker |
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