CN104036978A - Single-spring contact pressure device of isolation-strip grounding switch and operation method thereof - Google Patents
Single-spring contact pressure device of isolation-strip grounding switch and operation method thereof Download PDFInfo
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- CN104036978A CN104036978A CN201410203610.1A CN201410203610A CN104036978A CN 104036978 A CN104036978 A CN 104036978A CN 201410203610 A CN201410203610 A CN 201410203610A CN 104036978 A CN104036978 A CN 104036978A
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- spring
- contact pressure
- guide rod
- pin bushing
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to a single-spring contact pressure device of an isolation-strip grounding switch and an operation method thereof. The device is designed to be targeted at a technical problem that the prior same type of device is comparatively large in volume and has a design of poor universality with a two-station insulating pull rod. Key pints of the single-spring contact pressure device are that after sequential sleeve of a guide rod, a contact pressure spring and a guide sleeve, the guide rod extends out of the guide sleeve and the guide sleeve extends out of a spring seat, the guide sleeve is limited in a guide rod hole of the spring seat. A long slide hole of the guide rod extending out of the guide sleeve is provided with a driving shaft pin. When the contact pressure spring is in a switch-off state of abutting against the guide rod and the guide sleeve, the driving shaft pin on the guide rod is located at the outer side end of the long slide hole. Through the driving shaft pin, the guide sleeve continues to be subjected to a force and the driving shaft pin slides from the outer side end of the long slide role of the guide rod to the spring seat end of the long slide role and the guide sleeve is accommodated in the spring seat and the contact pressure spring is deformed and then the single-spring contact pressure device is at a switch-on position. When the driving shaft pin drives the guide rod to extend out of the spring seat and at the same time the contact pressure spring is deformed, the single-spring contact pressure device is at a grounding position.
Description
Technical field
The present invention relates to the isolation strip earthed switch of high-voltage switch electric appliance, is single spring contact pressure apparatus and the actuating method thereof of a kind of isolation strip earthed switch.
Background technology
At present, three station vacuum arc extinguish chambers of high-voltage switch electric appliance generally have combined floodgate, separating brake, three stations of ground connection, in the time of combined floodgate and ground connection, contact pressure must be provided, and pressure is provided in contact burning value, to all the time dynamic and static contact, close a floodgate or ground connection operation to ensure that dynamic/static contact reliably contacts, could realize.Two contrary pressure are provided to dynamic and static contact for direct or indirect, generally can only take the form with two groups of springs, one group of spring provides contact pressure while closing for giving, and another group spring provides contact pressure while being used for to ground connection.Three station vacuum arc extinguish chambers are in the time that reality is used, general two station vacuum arc extinguish chambers and three station vacuum arc extinguish chambers of adopting are cast into an entirety, drive insulated tension pole to realize point two states that close by two station operating mechanisms, three position mechanism drives three station insulated tension poles, realizes splitting or integrating isolation and splitting or integrating landing operation.Wherein, isolation fixed contact, grounding static contact and the vacuum interrupter of three station vacuum arc extinguish chambers are linked to be overall vacuum arc control device and fix again on circuit breaker.When two station arc control device are in the time that co-bit is put, the moving contact of three station arc control device can only be in every clutch position, now electric current is by end of incoming cables (main bus bar) logical moving two station fixed contacts, two station moving contacts, be flexible coupling, three station moving contacts, three station fixed contacts are to leading-out terminal, form a loop.When two station arc control device are in the time dividing position, the moving contact of three station arc control device first falls back on isolation point position, fall back on again ground connection co-bit, then two station vacuum arc extinguish chambers close, now electric current is by end of incoming cables (main bus bar) logical moving two station fixed contacts, two station moving contacts, be flexible coupling, three station moving contacts, three station grounding contacts, form a loop, by end of incoming cables ground connection.But above-mentioned existing like product exists volume larger, with two station insulated tension pole versatilities and the not good enough technical problem of structural design, remain to be further improved.
Summary of the invention
For overcoming above-mentioned deficiency, the object of the invention is to provide to this area single spring contact pressure apparatus and the actuating method thereof of a kind of isolation strip earthed switch, make it solve existing similar volume larger, with two station insulated tension pole versatilities and the not good enough technical problem of structural design.Its objective is and be achieved through the following technical solutions.
Single spring contact pressure apparatus of a kind of isolation strip earthed switch, this list spring contact pressure apparatus comprises threaded connector, spring base, guide rod, contact pressure spring, one end of described spring base is provided with threaded connector, threaded connector is connected with external fixed contact, moving contact, in spring base, be provided with contact pressure spring, guide rod is " T " font, guide rod one end external diameter in spring base is provided with contact pressure spring, one end of contact pressure spring is limited in this side of guide rod T shape positive stop end, and the other end of guide rod stretches out spring base; The spring base external part external diameter that it is characterized in that described guide rod is provided with guide pin bushing, it is the centre bore that guide rod stretches out guide pin bushing, guide pin bushing is inserted in the guide rod hole that stretches out spring base, guide pin bushing is " T " font, the T shape positive stop end of guide pin bushing one end is limited in spring base, the other end of guide pin bushing stretches out spring base, and contact pressure both ends of the spring is butted on respectively between the T shape positive stop end of guide rod and the T shape positive stop end of guide pin bushing mutually, and the end that guide rod stretches out spring base and guide pin bushing is simultaneously provided with driving shaft pin; The connecting hole of guide rod and driving shaft pin is long sliding hole, and when contact pressure spring offsets with guide rod, guide pin bushing respectively, the driving shaft pin on guide rod is positioned at the outboard end of long sliding hole.In the time of guide rod income spring base, this list spring contact pressure apparatus exists and closes a floodgate and separating brake two states, as guide rod and threaded connector offset, contact pressure both ends of the spring is "on" position while offseting with threaded connector, guide pin bushing respectively, now, driving shaft pin is positioned at the outboard end of long sliding hole on guide rod; When driving shaft pin on guide rod continues to spring base side shifting, in the stressed income spring base of guide pin bushing, contact pressure spring generation deformation, driving shaft pin continues to the total side shifting of spring in the long sliding hole of guide rod, until driving shaft pin slides into the end of long sliding hole, contact pressure spring generation deformation, now this list spring contact pressure apparatus is gate-dividing state.When otherwise guide rod stretches out spring base, when guide rod moves to contact pressure both ends of the spring and offsets with threaded connector, guide pin bushing respectively, continue the driving shaft pin on moving leader, driving shaft pin slides while returning to the outboard end of long sliding hole, and continue while driving guide rod to move outside spring base by driving shaft pin, contact pressure spring continues deformation occurs, and now this list spring contact pressure apparatus is ground state.
Described threaded connector is " T " font, and the T shape extension of threaded connector is outer link, and T shape positive stop end is the threaded ends of threaded connector internal diameter and spring base internal diameter.By regulating being connected between threaded connector and spring base, and then regulate the space of guide rod stroke chamber in spring base; The outer link of the threaded connector other end is convenient to this handling of list spring contact pressure apparatus on high-voltage switch gear.
Described guide rod, contact pressure spring, guide pin bushing after fit, are inserted in the other end to spring base from one end of spring base successively, and guide rod stretches out guide pin bushing, and guide pin bushing stretches out spring base, and guide pin bushing is limited in the guide rod hole of this end of spring base by T shape positive stop end; This end that spring base is inserted in guide rod, contact pressure spring, guide pin bushing is threaded connection head guide rod, contact pressure spring, guide pin bushing is packaged in spring base, the guide rod long sliding hole that stretches out guide pin bushing arranges driving shaft pin, and this list spring contact pressure apparatus gets final product installation.Above-mentioned this list spring contact pressure apparatus Assembling Production is convenient, stability, fail safe are good, it is easy to adjust that the stroke of spring base inner guide is threaded connection, this list spring contact pressure apparatus is threaded connection head, driving shaft pin is installed on high-voltage switch gear, thereby is convenient to two station insulated tension poles general.
Described driving shaft pin is connected with the drive end of high-tension switch electrical equipment, and contact pressure spring offsets with guide rod, guide pin bushing respectively, and when the driving shaft pin on guide rod is positioned at the outboard end of long sliding hole, this list spring contact pressure apparatus is open position; Continue to make guide pin bushing stressed by driving shaft pin, driving shaft pin is slided to the spring base end of long sliding hole by the long sliding hole outboard end of guide rod, in guide pin bushing income spring base, and contact pressure spring generation deformation, now this list spring contact pressure apparatus is closing position; Stretching out spring base when driving shaft pin drives guide rod, is earthing position when the deformation of contact pressure spring generation simultaneously.Thereby while combined floodgate, contact allows the distance of scaling loss to be: under gate-dividing state, driving shaft pin is further pressed guide pin bushing, the stroke of guide pin bushing in spring base.When ground connection, contact allows the distance of scaling loss to be: under ground state, spring base female screw connection is to the distance between guide rod.
The present invention adopts single spring structure, and it is reasonable in design, installs, easy to use, and stability, fail safe are good; Be suitable as the isolation strip earthed switch contact pressure device of high-voltage switch electric appliance three station vacuum arc extinguish chamber structures, ex hoc genus anne the further improvement of product.
Brief description of the drawings
Sectional structure schematic diagram when Fig. 1 is the front open position of actuating of the present invention.
Fig. 2 is the sectional structure schematic diagram of actuating of the present invention during to closing position, and what in figure, arrow was driving shaft pin is subject to force direction.
Fig. 3 is the sectional structure schematic diagram of actuating of the present invention during to earthing position.
Fig. 4 is perspective view of the present invention.
Fig. 5 is the blast structural representation of Fig. 4.
Figure number and title: 1, threaded connector, 2, spring base, 3, guide rod, 4, contact pressure spring, 5, guide pin bushing, 6, driving shaft pin.
Embodiment
Now by reference to the accompanying drawings, structure of the present invention and use are further described.As shown in Fig. 1～Fig. 5, this list spring contact pressure apparatus comprises threaded connector 1, spring base 2, guide rod 3, contact pressure spring 4, guide pin bushing 5, driving shaft pin 6, described guide rod, contact pressure spring, guide pin bushing are successively after fit, be inserted in the other end to spring base from one end of spring base, guide rod stretches out guide pin bushing, guide pin bushing stretches out spring base, and guide pin bushing is limited in the guide rod hole of this end of spring base by T shape positive stop end; This end that spring base is inserted in guide rod, contact pressure spring, guide pin bushing is threaded connection head guide rod, contact pressure spring, guide pin bushing is packaged in spring base, the guide rod long sliding hole that stretches out guide pin bushing arranges driving shaft pin, and this list spring contact pressure apparatus gets final product installation.Meanwhile, described threaded connector, guide rod, guide pin bushing are respectively " T " font, and guide pin bushing is limited in spring base by T shape positive stop end, and contact pressure both ends of the spring is butted on respectively between the T shape positive stop end of guide rod and the T shape positive stop end of guide pin bushing mutually; The T shape extension of threaded connector is outer link, and T shape positive stop end is the threaded ends of threaded connector internal diameter and spring base internal diameter.
As shown in Figure 1, Figure 2, in Fig. 1 gate-dividing state, the driving shaft pin of Fig. 2 continues to apply external force to guide pin bushing, drives guide pin bushing to move in spring base, and drives contact pressure spring generation deformation, can reach the "on" position of Fig. 2.As shown in Figure 2, this list spring contact pressure apparatus drives guide pin bushing by contact pressure spring-compressed by driving shaft pin, and being threaded connection head provides the pressure of a direction to dynamic/static contact; Meanwhile, as shown in Figure 3, drive guide rod compression contacts compression spring by driving shaft pin, be threaded connection head and provide a reciprocal pressure to dynamic/static contact.
Below taking the practical operation of isolation earthing switch (EDS) as example, the whole motion process of this list spring contact pressure apparatus (comprising manual operation and electric operating) is once described, by closing position to open position, then to the whole motion process of earthing position operation.1,, by " separating brake " to " combined floodgate ": this list spring contact pressure apparatus drives guide pin bushing by contact pressure spring-compressed by driving shaft pin, being threaded connection head provides the pressure (being shown in Fig. 2, open position) of a direction to dynamic/static contact.2, by " separating brake " to " ground connection ": drive guide rod compression contacts compression spring by driving shaft pin, be threaded connection head and provide a reciprocal pressure (being shown in Fig. 3, earthing position) to dynamic/static contact.Thereby the present invention reduced dynamic/static contact separating brake, force of sliding friction while closing a floodgate, make separating brake, closing position more accurate.
Claims (4)
1. single spring contact pressure apparatus of an isolation strip earthed switch, this list spring contact pressure apparatus comprises threaded connector (1), spring base (2), guide rod (3), contact pressure spring (4), one end of described spring base is provided with threaded connector, threaded connector is connected with external fixed contact, moving contact, in spring base, be provided with contact pressure spring, guide rod is " T " font, guide rod one end external diameter in spring base is provided with contact pressure spring, one end of contact pressure spring is limited in this side of guide rod T shape positive stop end, and the other end of guide rod stretches out spring base; Spring base (2) the external part external diameter that it is characterized in that described guide rod (3) is provided with guide pin bushing (5), it is the centre bore that guide rod stretches out guide pin bushing, guide pin bushing is inserted in the guide rod hole that stretches out spring base, guide pin bushing is " T " font, the T shape positive stop end of guide pin bushing one end is limited in spring base, the other end of guide pin bushing stretches out spring base, contact pressure spring (4) two ends are butted on respectively between the T shape positive stop end of guide rod and the T shape positive stop end of guide pin bushing mutually, and the end that guide rod stretches out spring base and guide pin bushing is simultaneously provided with driving shaft pin (6); The connecting hole of guide rod and driving shaft pin (6) is long sliding hole, and when contact pressure spring offsets with guide rod, guide pin bushing respectively, the driving shaft pin on guide rod is positioned at the outboard end of long sliding hole.
2. single spring contact pressure apparatus of isolation strip according to claim 1 earthed switch, it is characterized in that described threaded connector (1) is " T " font, the T shape extension of threaded connector is outer link, and T shape positive stop end is the threaded ends of threaded connector internal diameter and spring base (2) internal diameter.
3. single spring contact pressure apparatus of isolation strip according to claim 1 earthed switch, it is characterized in that described guide rod (3), contact pressure spring (4), guide pin bushing (5) are successively after fit, be inserted in the other end to spring base from one end of spring base (2), guide rod stretches out guide pin bushing, guide pin bushing stretches out spring base, and guide pin bushing is limited in the guide rod hole of this end of spring base by T shape positive stop end; This end that spring base is inserted in guide rod, contact pressure spring, guide pin bushing is threaded connection head (1) guide rod, contact pressure spring, guide pin bushing is packaged in spring base, the guide rod long sliding hole that stretches out guide pin bushing arranges driving shaft pin (6), and this list spring contact pressure apparatus gets final product installation.
4. the actuating method of single spring contact pressure apparatus of isolation strip according to claim 1 earthed switch, it is characterized in that described driving shaft pin (6) is connected with the drive end of high-tension switch electrical equipment, contact pressure spring (4) offsets with guide rod, guide pin bushing respectively, and when the driving shaft pin on guide rod is positioned at the outboard end of long sliding hole, this list spring contact pressure apparatus is open position; Continue to make guide pin bushing (5) stressed by driving shaft pin, driving shaft pin is slided to spring base (2) end of long sliding hole by the long sliding hole outboard end of guide rod (3), in guide pin bushing income spring base, contact pressure spring generation deformation, now this list spring contact pressure apparatus is closing position; Stretching out spring base when driving shaft pin drives guide rod, is earthing position when the deformation of contact pressure spring generation simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203610.1A CN104036978B (en) | 2014-05-13 | 2014-05-13 | Single spring contact pressure apparatus of isolation strip earthed switch and actuating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203610.1A CN104036978B (en) | 2014-05-13 | 2014-05-13 | Single spring contact pressure apparatus of isolation strip earthed switch and actuating method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104036978A true CN104036978A (en) | 2014-09-10 |
| CN104036978B CN104036978B (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410203610.1A Expired - Fee Related CN104036978B (en) | 2014-05-13 | 2014-05-13 | Single spring contact pressure apparatus of isolation strip earthed switch and actuating method thereof |
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| Country | Link |
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| CN (1) | CN104036978B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547528A (en) * | 2016-01-28 | 2016-05-04 | 天一同益电气股份有限公司 | Testing device capable of testing work pressure of plum-blossom-shaped contact |
| CN106328424A (en) * | 2016-10-26 | 2017-01-11 | 湖南长高高压开关集团股份公司 | Upper conductive arm of folding arm expansion clamp-type disconnector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69303097T2 (en) * | 1992-03-31 | 1997-01-02 | Schneider Electric Sa | Swing lever actuation mechanism for circuit breakers with phase and neutral conductors |
| CN2386525Y (en) * | 1999-08-23 | 2000-07-05 | 绍兴电力设备成套公司 | Rotatable contact holding spring for high voltage vacuum switch |
| CN203134723U (en) * | 2013-01-24 | 2013-08-14 | 平高集团有限公司 | Opening spring device and breaker operating mechanism using opening spring device |
| CN203871194U (en) * | 2014-05-13 | 2014-10-08 | 宁波舜利高压开关科技有限公司 | Single-spring contact pressure apparatus of isolation strip grounding switch |
-
2014
- 2014-05-13 CN CN201410203610.1A patent/CN104036978B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69303097T2 (en) * | 1992-03-31 | 1997-01-02 | Schneider Electric Sa | Swing lever actuation mechanism for circuit breakers with phase and neutral conductors |
| CN2386525Y (en) * | 1999-08-23 | 2000-07-05 | 绍兴电力设备成套公司 | Rotatable contact holding spring for high voltage vacuum switch |
| CN203134723U (en) * | 2013-01-24 | 2013-08-14 | 平高集团有限公司 | Opening spring device and breaker operating mechanism using opening spring device |
| CN203871194U (en) * | 2014-05-13 | 2014-10-08 | 宁波舜利高压开关科技有限公司 | Single-spring contact pressure apparatus of isolation strip grounding switch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547528A (en) * | 2016-01-28 | 2016-05-04 | 天一同益电气股份有限公司 | Testing device capable of testing work pressure of plum-blossom-shaped contact |
| CN105547528B (en) * | 2016-01-28 | 2018-03-16 | 天一同益电气股份有限公司 | A kind of test equipment that can test Mume flower contact operating pressure |
| CN106328424A (en) * | 2016-10-26 | 2017-01-11 | 湖南长高高压开关集团股份公司 | Upper conductive arm of folding arm expansion clamp-type disconnector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104036978B (en) | 2016-06-15 |
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Granted publication date: 20160615 Termination date: 20210513 |
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| CF01 | Termination of patent right due to non-payment of annual fee |