CN107147032A - A kind of linkage insulating bar group for solid insulation ring main unit - Google Patents
A kind of linkage insulating bar group for solid insulation ring main unit Download PDFInfo
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- CN107147032A CN107147032A CN201710496527.1A CN201710496527A CN107147032A CN 107147032 A CN107147032 A CN 107147032A CN 201710496527 A CN201710496527 A CN 201710496527A CN 107147032 A CN107147032 A CN 107147032A
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- Prior art keywords
- insulating bar
- rod
- main body
- insulating
- drag link
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0352—Gas-insulated switchgear for three phase switchgear
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
Abstract
The invention discloses a kind of linkage insulating bar group for solid insulation ring main unit, the breaker insulating bar of moving conductive rod connection including the first connecting lever and vacuum interrupter by breaker transmission main shaft is connected in transmission mechanism, and connection in transmission mechanism is isolated to the second connecting lever of transmission main shaft and the isolated insulation rod for isolating blade connection of tri-station isolating switch；The breaker insulating bar includes lower connecting rod, insulating bar main body, compression spring, the first drag link sleeve, double end adjusting rod and the first adjusting rod being coaxially disposed from the bottom to top.The insulating bar group possesses rational built-in electrical insulation performance and exterior insulation performance, with preventing the effect of insulating bar deformation, with the long adjustment structure of bar, can effectively adjust the parameter of the relevant mechanical property of vacuum interrupter.
Description
Technical field
Insulated the present invention relates to solid insulation ring main unit field, more particularly to a kind of linkage for solid insulation ring main unit
Rod group.
Background technology
Solid insulation ring main unit is a environmental type ring main unit popular in the market, belongs to distribution network systems end
Controller switching equipment.Solid insulation net cabinet has compact appearance and size, environment protecting and power-saving, non-maintaining and safe and reliable etc. performance.
Solid insulation ring main unit includes the insulating bar group of linkage, can by switch and the operating mechanism of the tank module that insulate and
Transmission mechanism is connected, and forms complete control system, when reaching operation operating mechanism, can pass through transmission system and insulating bar
Vacuum interrupter and the contact closure of tri-station isolating switch or separation is driven to complete the break-make control of major loop.
At present, breaker insulating bar and isolated insulation rod there are problems that some：1) tensile capacity is poor, and pull bar easily occurs
Deformation even comes off fracture；2) the mechanical property difficulty of parameter tuning of vacuum interrupter, it may appear that just-off speed is unreasonable, open away from
It is improper with excess of stroke technical indicator；3) creep age distance of external insulation is inadequate；4), easily there is penetrability and punctures in interior insulation intensity difference.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of good electrical insulating properties and mechanical strength, are conveniently adjusted
A kind of linkage insulating bar group for solid insulation ring main unit of vacuum interrupter mechanical property parameter.
In order to solve the above technical problems, the technical solution used in the present invention is：
A kind of linkage insulating bar group for solid insulation ring main unit, including breaker insulating bar and isolated insulation rod；Its
It is characterised by：The of breaker transmission main shaft is connected in the transmission mechanism of breaker insulating bar, upper end and solid insulation ring main unit
One connecting lever is hinged, and lower end is threadedly coupled with the moving conductive rod of vacuum interrupter；Breaker insulating bar, including first be coaxially disposed
Insulating bar main body, buffer spring, the first drag link sleeve, double end adjusting rod, the first adjusting rod and lower connecting rod；First insulating bar master
Body, including the first insulation core body and the first insulating coating, the multidiameter structure that the first insulation core body top is diametrically inside contracted,
The upper and lower ends of the first insulating bar main body are embedded with the steel column inserts being coaxial therewith, and the steel column inserts center of lower end has
Screw thread axis hole；Lower connecting rod, its upper end has the spiral shell with the screw thread shaft hole matching on the first insulating bar main body lower end steel column inserts
Line, and be fully connected with the first insulating bar main body lower end steel column inserts, there is the moving conductive rod with vacuum interrupter to match somebody with somebody for its lower end
The screw thread of conjunction, and be fully connected with the moving conductive rod of vacuum interrupter；First drag link sleeve, external diameter is more than the first insulation core body top
Diameter, first drag link sleeve is metal material, is fixedly connected with the steel column inserts of the first insulating bar main body upper end, described first
Screw thread axis hole is provided with the top of drag link sleeve；First adjusting rod, lower end is provided with the screw thread axis hole being coaxial therewith；Double end adjusting rod, two ends
For screw-rod structure, one end is threadedly coupled with the first drag link sleeve, and the other end is threadedly coupled with the first adjusting rod；Compression spring, is arranged
In the first insulation core body top, compression spring two ends are provided with spring compressor, are placed in the first drag link sleeve lower surface and the first insulation core body
In the compression groove formed at ladder, the compression spring has 1950~2050N elastic deformation force；The insulating bar main body
First insulating coating is coated in the first insulation core body, bottom top layer and compression spring and spring compressor top layer, and the first insulation is outer
Put along its axial direction and be provided with full skirt piece.
Further technical scheme is：Connected in the transmission mechanism of isolated insulation rod, upper end and solid insulation ring main unit
Second connecting lever of isolation transmission main shaft is hinged, and lower end isolates blade connection with tri-station isolating switch；Isolated insulation rod, including
The second insulating bar main body, the second drag link sleeve and the second adjusting rod being coaxially disposed；Second insulating bar main body, including the second insulating core
Body and the second insulating coating；Second drag link sleeve, is metal material, and the second insulation core body top is fixed in its bottom by resilient key
Provided with the screw thread axis hole being coaxial therewith at the top of portion, second drag link sleeve；Second adjusting rod, its lower end has and the second drag link sleeve
On screw thread shaft hole matching screw-rod structure, and be threadedly coupled with the second drag link sleeve；The second insulating coating evagination formation umbrella
Skirt, is coated on the second insulation core body and the second drag link sleeve top layer.
Further technical scheme is：The compression spring has 45mm free height, and spring line footpath is 7mm, bullet
Spring external diameter is 37mm, and the decrement of compression spring is 8~10mm.
Further technical scheme is：On first insulating coating of the insulating bar main body umbrella is provided with along its axial direction
Skirt piece, a diameter of 35mm of the full skirt piece, the distance between adjacent full skirt piece is 18mm, and the distance between two ends full skirt piece is
70mm。
Further technical scheme is：The nominal diameter of the screw-rod structure at the double end adjusting rod two ends is 10mm, spiral shell
Away from for 1.25mm, and two ends hand of spiral on the contrary, the nominal length of its upper end screw-rod structure is 35mm, with the first adjusting rod
Smallest connection length is 15mm, and the nominal length of its lower end screw-rod structure is 28mm, the Smallest connection length with the first drag link sleeve
For 15mm.
Further technical scheme is：The straight length of the second insulating coating formation umbrella skirt construction is 266mm, and
In the umbrella skirt construction of second insulating coating formation, a diameter of 34mm of full skirt, the distance between adjacent full skirt is 7mm.
Further technical scheme is：The nominal diameter of the screw-rod structure of second adjusting rod is 10mm, and pitch is
1.25mm, nominal length is 50mm, and the Smallest connection length of itself and the second drag link sleeve is 30mm.
Further technical scheme is：First insulating coating of the first insulating bar main body and the second insulating bar main body
The second insulating coating be silicon rubber material.
Further technical scheme is：First insulation core body of the first insulating bar main body and the second insulating bar main body
The second insulation core body be fire-retardant nylon rod.
It is using the beneficial effect produced by above-mentioned technical proposal：
(1) spring structure has rational decrement there is provided certain spring force and energy, solves amount of spring compression mistake
Not enough, just-off speed is small, closing power excessive contradiction when the excessive energy storage of amount of spring compression is excessive, it is ensured that buffer spring for hour energy storage
The critical switching point of elastic deformation, is that the mechanical property parameter of effective adjustment vacuum interrupter lays the foundation；
(2) compression stress of spring structure can make circuit breaker tie rod buffer stress, slow down the rigidity that breaker insulating bar is subject to
Deformation, it is to avoid breaker insulating bar stress, which bent or lose, causes the alignment of insulated tension pole poor；
(3) by double end adjusting rod and the screw-in length of two ends part, the entire length of breaker insulating bar can be adjusted,
So as to control vacuum circuit breaker moved end open away from the parameter such as the excess of stroke, be conveniently adjusted vacuum interrupter mechanical property parameter；
(4) structure that the spiral link structure and lower connecting rod of double end adjusting rod are connected with the spiral of steel column inserts, spiral shell
Pulling force suffered by insulating bar is efficiently transferred on the helicitic texture of twin-feed spiral part by rotation structure, significantly reduces the collection of insulating bar
Middle stress point, pulling force is shifted from centralization to distributing, the distribution character of improved force, is prevented effectively from pull bar deformation greatly or even disconnected
Split the problems such as coming off, the tensile strength of raising rod so that the mechanical property of insulating bar effectively meets device requirement, effectively solution
Certainly pull bar deformation is excessive the problems such as cause mechanical injuries to pull bar；
(5) because the interface region in isolation material and air is easily influenceed by outside atmospheric conditions and is occurred along face
Voltage's distribiuting on electric discharge, dielectric interface is uneven, and insulating properties are poor, so in the dielectric interface area easily discharged
Domain increases insulator umbrella, strengthens its external insulation tolerance, improves breaker insulating bar body outer surface resistance to voltage, full skirt
Creepage distance compared to plane rationally increases, and spring and spring compressor are carried out into overall parcel with insulation master unit, solves outer
The problem of portion's creepage distance of insulation is inadequate.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of breaker insulating bar of the present invention；
Fig. 2 is the structural representation of isolated insulation rod of the present invention；
Fig. 3 is the use state structural representation of the present invention.
Embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
It is different from other manner described here using other to implement, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
Embodiment one
As shown in figure 3, a kind of linkage insulating bar group for solid insulation ring main unit, including breaker insulating bar 10 and every
From insulating bar 20；Can be effectively by the switch of the insulation module 30 of solid insulation ring main unit and operating mechanism (i.e. breaker behaviour
Make mechanism 40 and isolated operation mechanism 50) and transmission mechanism 60 connect, form complete control system, reach operation actuating
During mechanism, the contact of vacuum interrupter 31 and tri-station isolating switch 32 can be driven by transmission mechanism 60 and linkage insulating bar group
Closure or separation complete the break-make control of major loop, and the insulating bar group is in addition to reaching rational insulating properties, moreover it is possible to realize exhausted
Edge pull bar tensile strength effectively prevents deformation, it is ensured that the good mechanical property of pull bar.
Breaker transmission main shaft is connected in the transmission mechanism 60 of breaker insulating bar 10, upper end and solid insulation ring main unit
First connecting lever 61 is hinged, and lower end is threadedly coupled with the moving conductive rod of vacuum interrupter 31.
As shown in figure 1, breaker insulating bar 10, including be coaxially disposed the first insulating bar main body 1, buffer spring 3, first
Drag link sleeve 4, double end adjusting rod 5, the first adjusting rod 6 and lower connecting rod 2.
First insulating bar main body 1, including the first insulation core body and the first insulating coating, the first insulation core body top is in
The multidiameter structure that diameter is inside contracted, the upper and lower ends of the first insulating bar main body 1 are embedded with the steel column inserts being coaxial therewith,
The steel column inserts center of lower end has screw thread axis hole.
Lower connecting rod 2, its upper end has the spiral shell with the screw thread shaft hole matching on the lower end steel column inserts of the first insulating bar main body 1
Line, and be fully connected with the lower end steel column inserts of the first insulating bar main body 1, there is the moving conductive rod with vacuum interrupter to match somebody with somebody for its lower end
The screw thread of conjunction, and be fully connected with the moving conductive rod of vacuum interrupter.
First drag link sleeve 4, external diameter is more than the first insulation core body upper diameter, and first drag link sleeve 4 is metal material, with
The steel column inserts of the upper end of first insulating bar main body 1 is fixedly connected, and the top of the first drag link sleeve 4 is provided with screw thread axis hole.
First adjusting rod 6, lower end is provided with the screw thread axis hole being coaxial therewith.
Double end adjusting rod 5, for the first drag link sleeve 4 to be connected with the first adjusting rod 6, its two ends is screw-rod structure, one end
It is threadedly coupled with the first drag link sleeve 4, the other end is threadedly coupled with the first adjusting rod 6.
Wherein, by adjusting the screw-in length of double end adjusting rod 5 and two ends part, breaker insulating bar 10 can be adjusted
Entire length, thus control the moved end of vacuum circuit breaker 31 open away from the parameter such as the excess of stroke, be conveniently adjusted vacuum interrupter machinery
Characterisitic parameter.
Moreover, the structure that the spiral link structure and lower connecting rod of double end adjusting rod are connected with the spiral of steel column inserts,
Not only act as the effect of connection and regulation, additionally it is possible to be efficiently transferred to pulling force suffered by insulating bar pair when insulating bar stress impact
On the helicitic texture of head helical element.Due to threaded connection be by being engaged what is be attached between ridge and ridge,
Connected piece is mutually compressed in the presence of pulling force, so that pulling force is converted to the stressed on friction power of thread faying face generation, will
Pulling force is scattered to be delivered to each circle screw thread, and power becomes scattered by concentrating, the concentration stress point of insulating bar significantly reduced, by pulling force by collecting
Chinese style is shifted to distributing, the distribution character of improved force, the problems such as being prevented effectively from big pull bar deformation or even breaking releasing, and lifting is drawn
The tensile strength of bar so that the mechanical property of insulating bar effectively meets device requirement, effectively solves pull bar deformation excessive to drawing
The problems such as bar causes mechanical injuries.And the impact of insulating bar stress is mainly during switch division, once close
Or disconnect, screw thread herein only plays connection.
Compression spring 3, is sheathed on the first insulation core body top, and the two ends of compression spring 3 are provided with spring compressor 7, are placed in the first drawing
In the compression groove formed at the lower surface of rod set 4 and the first insulation core body ladder, the compression spring 3 has 1950~2050N's
Elastic deformation force, preferred value is 2000N.
Spring provide 1950-2050N elastic deformation force when, regulation open away from the excess of stroke vacuum interrupter indication range
Interior, its mechanical property data table is as follows, reliably meets DL/T 1586-2016 12kV solid insulation metal enclosed switchgears
With the requirement of control device：
Spring structure has rational decrement there is provided certain spring force and energy, solves amount of spring compression too small
When energy storage not enough, just-off speed is small, and closing power excessive contradiction when the excessive energy storage of amount of spring compression is excessive, just-off speed is too small,
It is unfavorable for vacuum interrupter moving contact drop-out current, vacuum interrupter connecting-disconnecting function is unable to reach, and closing power is excessive, moving contact will
Bear that pressure between excessive mechanical stress and impact, dynamic/static contact is excessive to be caused that contact deformation is serious, bounce and excessive cause contact
Wear-thickness exceedes permissible value, damages contact and may damage bellows.
The compression stress of spring structure can make breaker insulating bar 10 buffer stress, and that slows down that breaker insulating bar 10 is subject to is firm
Property deformation, it is to avoid the stress of breaker insulating bar 10, which bent or lose, causes the alignment of insulated tension pole poor, once insulating bar deformation
To certain degree, the axial tension that vacuum interrupter should be subject to will have certain misalignment angle, insulating bar with axial direction
The axial component of pulling force will act on vacuum interrupter, and angle is excessive, and the axial component of pulling force certainly will be not enough to pull vacuum to go out
Arc chamber is cut-off, conversely, to provide enough axial components acts on vacuum interrupter, it is desirable to which sufficiently large insulating bar is drawn
Power, and angle it is excessive when the pulling force be possible to exceed the pulling force critical value of insulated tension pole and be broken pull bar.
First insulating coating of insulating bar main body 1 is coated in the first insulation core body, bottom top layer and the and of compression spring 3
On the top layer of spring compressor 7, the first insulating coating full skirt piece 8 is provided with along its axial direction.In the interface area of isolation material and air
Domain is easily influenceed by outside atmospheric conditions and occurs creeping discharge, and the voltage's distribiuting on dielectric interface is uneven, insulating properties
Can be poor, increase insulator umbrella in the dielectric interface region easily discharged, strengthen its external insulation tolerance, improve disconnected
Road device insulating bar body outer surface resistance to voltage.Breaker insulating bar 10 carries out umbrella skirt construction and set, compared to the surface distance of plane
Clutch reason increase, and spring and spring compressor are subjected to integral insulation parcel with insulation master unit, by analyzing electric-field intensity
And optimization, solve the problem of exterior insulation creep age distance is inadequate.
Embodiment two
It is with the difference of embodiment one, makes compression spring 3 that there is the 1950~2050N spring cal(l)ipers of elastic deformation force
Lattice have a variety of, and wherein compression spring 3 has 45mm free height, and spring line footpath is 7mm, and spring outer diameter is 37mm, compresses bullet
The decrement of spring 3 is 8~10mm, more meets the design size requirement of breaker insulating bar 10.And material used in buffer spring 3
For 60Si2Mn, buffer spring select silicon-manganese spring steel material design, with good tensile strength and yield strength, elongation,
The mechanical properties such as the contraction percentage of area, can bear larger load.
Embodiment three
It is with the difference of embodiment one, the first insulation core body of the first insulating bar main body 1 is the fire-retardant Buddhist nun of high intensity
Imperial rod, insulating bar micro-strain and impact when its interior insulation intensity is drastically changed by heating component temperature, operating mechanism is acted
The influence of the external environment conditions such as power is very small, and the material has high electrical property, impact strength height, high rigidity, height heat-resisting, good
Dimensional stability, and environment is small on the deterioration of insulating materials influence, and built-in electrical insulation performance can be ensured.More importantly
Suitable molding pours shaping, is adapted to placing steel pole inserts.First insulating coating of the first insulating bar main body 1 is silicon rubber material,
With excellent insulating properties, and high- and low-temperature resistance performance, it is to avoid insulating coating ftractures.
Example IV
It is with the difference of embodiment one, full skirt rationally increases compared to the creepage distance of plane, full skirt is dredged up to not excessively
Overstocked and can cause directly to climb electricity between adjacent full skirt to the requirement of creep age distance, the rational density of umbrella skirt construction is that optimization is set
The key of meter.
A diameter of 35mm of full skirt piece 8, the distance between adjacent full skirt piece 8 is the distance between 18mm, two ends full skirt piece 8
For 70mm, rational full skirt size and density, it is ensured that external insulation performance, full skirt shape structure further increases creep distance, it is ensured that
The external insulation distance of safe enough, the problem of effectively solving dielectric strength difference and inadequate external insulation creep distance.
Embodiment five
The specification for being double end adjusting rod 5 with the difference of embodiment one is chosen, the screw rod at the two ends of double end adjusting rod 5
The nominal diameter of structure is 10mm, and pitch is 1.25mm, and two ends hand of spiral on the contrary, the nominal of its upper end screw-rod structure is long
Spend for 35mm, the Smallest connection length with the first adjusting rod is 15mm, and the nominal length of its lower end screw-rod structure is 28mm, with the
The Smallest connection length of one drag link sleeve is 15mm, it is ensured that its bonding strength.
Moreover, the threaded upper ends size of lower connecting rod 2 is M10 × 1.25 × 25, lower end thread size is M10 × 1.25 × 35
(unit：mm).
Embodiment six
As shown in Fig. 2 being the biography of isolated insulation rod 20, upper end and solid insulation ring main unit with the difference of embodiment one
Second connecting lever 62 of connection isolation transmission main shaft is hinged in motivation structure 60, and lower end connects with the blade of isolating of tri-station isolating switch 32
Connect；Isolated insulation rod 20, including the second insulating bar main body 11, the second drag link sleeve 13 and the second adjusting rod 14 being coaxially disposed；The
Two insulating bar main bodys 11, including the second insulation core body and the second insulating coating；Second drag link sleeve 13, is metal material, for ease of
Install, its bottom is fixed at the top of the second insulation core body by resilient key, the top of the second drag link sleeve 13, which is provided with, to be coaxial therewith
Screw thread axis hole；Second adjusting rod 14, its lower end has the screw-rod structure with the screw thread shaft hole matching on the second drag link sleeve 13, and
It is threadedly coupled with the second drag link sleeve 13；The second insulating coating evagination formation full skirt, is coated on the second insulation core body and second
The top layer of drag link sleeve 13.
Isolated insulation rod 20 has full skirt insulation structure in the outer surface of the second insulating bar main body 11 compared with Conventional insulation rod
Make, be provided simultaneously with carrying out overall length adjusted design to the second adjusting rod 14.Effectively solve the length of isolated insulation rod 20 unreasonable
And when can not adjust, it is possible to cause isolation moving knife to contact excessive with isolating static contact, and contact too small with earthing, Huo Zheyu
The problem of isolating static contact contact excessive, and contact inadequate with earthing.By the regulation to isolated insulation rod 20, it is allowed to access
After control system, isolation cutting blade can be driven to have rational contact area with isolating static contact, grounding contact.
Embodiment seven
It is with the difference of embodiment six, the straight length of the second insulating coating formation umbrella skirt construction is 266mm, and the
In the umbrella skirt construction of two insulating coatings formation, a diameter of 34mm of full skirt, the distance between adjacent full skirt is 7mm, increases creep distance,
The external insulation distance of safe enough is ensure that, the problem of effectively solving dielectric strength difference and inadequate external insulation creep distance.
Embodiment eight
It is with the difference of embodiment six, the nominal diameter of the screw-rod structure of the second adjusting rod is 10mm, and pitch is
1.25mm, nominal length is 50mm, and the Smallest connection length of itself and the second drag link sleeve is 30mm, it is ensured that its bonding strength, and energy
Enough carry out length adjustment.
Embodiment nine
It is with the difference of embodiment six, the second insulating coating of the second insulating bar main body 11 is silicon rubber material, the
Second insulation core body of two insulating bar main bodys 11 is the fire-retardant nylon rod of high intensity, with the identical of embodiment three act on.
The above is only presently preferred embodiments of the present invention, anyone according to present disclosure to the present invention make it is a little
Simple modification, deformation and equivalent substitution each fall within protection scope of the present invention.
Claims (9)
1. a kind of linkage insulating bar group for solid insulation ring main unit, including breaker insulating bar and isolated insulation rod；It is special
Levy and be：
The first connecting lever of breaker transmission main shaft is connected in the transmission mechanism of breaker insulating bar, upper end and solid insulation ring main unit
It is hinged, lower end is threadedly coupled with the moving conductive rod of vacuum interrupter；
Breaker insulating bar, including be coaxially disposed the first insulating bar main body, buffer spring, the first drag link sleeve, double end adjusting rod,
First adjusting rod and lower connecting rod；
First insulating bar main body, including the first insulation core body and the first insulating coating, the first insulation core body top is diametrically
The multidiameter structure inside contracted, the upper and lower ends of the first insulating bar main body are embedded with the steel column inserts being coaxial therewith, lower end
Steel column inserts center there is screw thread axis hole；
Lower connecting rod, its upper end has the screw thread with the screw thread shaft hole matching on the first insulating bar main body lower end steel column inserts, and
It is fully connected with the first insulating bar main body lower end steel column inserts, its lower end has the spiral shell that the moving conductive rod with vacuum interrupter coordinates
Line, and be fully connected with the moving conductive rod of vacuum interrupter；
First drag link sleeve, external diameter is more than the first insulation core body upper diameter, and first drag link sleeve is metal material, exhausted with first
The steel column inserts of edge rod main body upper end is fixedly connected, and screw thread axis hole is provided with the top of first drag link sleeve；
First adjusting rod, lower end is provided with the screw thread axis hole being coaxial therewith；
Double end adjusting rod, two ends are screw-rod structure, and one end is threadedly coupled with the first drag link sleeve, the other end and the first adjusting rod screw thread
Connection；
Compression spring, is sheathed on the first insulation core body top, and compression spring two ends are provided with spring compressor, are placed in the first drag link sleeve lower end
In the compression groove formed at face and the first insulation core body ladder, the compression spring has 1950~2050N elastic deformation force；
First insulating coating of the insulating bar main body is coated in the first insulation core body, bottom top layer and compression spring and bullet
On spring cap top layer, the first insulating coating full skirt piece is provided with along its axial direction.
2. a kind of linkage insulating bar group for solid insulation ring main unit according to claim 1, it is characterised in that：
Isolated insulation rod, the second connecting lever that upper end isolates transmission main shaft with connection in the transmission mechanism of solid insulation ring main unit is cut with scissors
Connect, lower end isolates blade connection with tri-station isolating switch；
Isolated insulation rod, including the second insulating bar main body, the second drag link sleeve and the second adjusting rod being coaxially disposed；
Second insulating bar main body, including the second insulation core body and the second insulating coating；
Second drag link sleeve, is metal material, and its bottom is fixed at the top of the second insulation core body by resilient key, second pull bar
Set top is provided with the screw thread axis hole being coaxial therewith；
Second adjusting rod, its lower end has a screw-rod structure with the screw thread shaft hole matching on the second drag link sleeve, and with the second pull bar
External threading is connected；
The second insulating coating evagination formation full skirt, is coated on the second insulation core body and the second drag link sleeve top layer.
3. a kind of linkage insulating bar group for solid insulation ring main unit according to claim 1, it is characterised in that：It is described
Compression spring has a 45mm free height, and spring line footpath is 7mm, and spring outer diameter is 37mm, the decrement of compression spring for 8~
10mm。
4. a kind of linkage insulating bar group for solid insulation ring main unit according to claim 1, it is characterised in that：It is described
Full skirt piece is provided with along its axial direction on first insulating coating of insulating bar main body, a diameter of 35mm of the full skirt piece is adjacent
The distance between full skirt piece is 18mm, and the distance between two ends full skirt piece is 70mm.
5. a kind of linkage insulating bar group for solid insulation ring main unit according to claim 1, it is characterised in that：It is described
The nominal diameter of the screw-rod structure at double end adjusting rod two ends is 10mm, and pitch is 1.25mm, and two ends hand of spiral on the contrary, its
The nominal length of upper end screw-rod structure is 35mm, and the Smallest connection length with the first adjusting rod is 15mm, its lower end screw-rod structure
Nominal length be 28mm, be 15mm with the Smallest connection length of the first drag link sleeve.
6. a kind of linkage insulating bar group for solid insulation ring main unit according to claim 2, it is characterised in that：It is described
Second insulating coating forms the straight length of umbrella skirt construction for 266mm, and in the umbrella skirt construction of the second insulating coating formation, full skirt
A diameter of 34mm, the distance between adjacent full skirt is 7mm.
7. a kind of linkage insulating bar group for solid insulation ring main unit according to claim 2, it is characterised in that：It is described
The nominal diameter of the screw-rod structure of second adjusting rod is 10mm, and pitch is 1.25mm, and nominal length is 50mm, itself and the second pull bar
The Smallest connection length of set is 30mm.
8. a kind of linkage insulating bar group for solid insulation ring main unit according to claim 2, it is characterised in that：It is described
First insulating coating of the first insulating bar main body and the second insulating coating of the second insulating bar main body are silicon rubber material.
9. a kind of linkage insulating bar group for solid insulation ring main unit according to claim 2, it is characterised in that：It is described
First insulation core body of the first insulating bar main body and the second insulation core body of the second insulating bar main body are fire-retardant nylon rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710496527.1A CN107147032B (en) | 2017-06-26 | 2017-06-26 | Linkage insulation rod group for solid insulation ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710496527.1A CN107147032B (en) | 2017-06-26 | 2017-06-26 | Linkage insulation rod group for solid insulation ring main unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107147032A true CN107147032A (en) | 2017-09-08 |
| CN107147032B CN107147032B (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710496527.1A Active CN107147032B (en) | 2017-06-26 | 2017-06-26 | Linkage insulation rod group for solid insulation ring main unit |
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| Country | Link |
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| CN (1) | CN107147032B (en) |
Cited By (2)
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| CN108648968A (en) * | 2018-07-27 | 2018-10-12 | 四川电器集团股份有限公司 | With the insulating pull rod for breaker and creep distance increasing method for increasing creep distance function |
| CN108717915A (en) * | 2018-07-27 | 2018-10-30 | 四川电器集团股份有限公司 | It is a kind of that there is the high-voltage circuitbreaker system for being applicable in altitude environment performance |
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| CN108648968A (en) * | 2018-07-27 | 2018-10-12 | 四川电器集团股份有限公司 | With the insulating pull rod for breaker and creep distance increasing method for increasing creep distance function |
| CN108717915A (en) * | 2018-07-27 | 2018-10-30 | 四川电器集团股份有限公司 | It is a kind of that there is the high-voltage circuitbreaker system for being applicable in altitude environment performance |
| CN108648968B (en) * | 2018-07-27 | 2023-05-23 | 四川电器集团股份有限公司 | Circuit breaker insulation pull rod with function of increasing creepage distance and creepage distance increasing method |
| CN108717915B (en) * | 2018-07-27 | 2023-05-23 | 四川电器集团股份有限公司 | High-voltage circuit breaker system with suitable plateau environment performance |
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| CN107147032B (en) | 2023-03-28 |
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