CN104036978B - Single spring contact pressure apparatus of isolation strip earthed switch and actuating method thereof - Google Patents
Single spring contact pressure apparatus of isolation strip earthed switch and actuating method thereof Download PDFInfo
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- CN104036978B CN104036978B CN201410203610.1A CN201410203610A CN104036978B CN 104036978 B CN104036978 B CN 104036978B CN 201410203610 A CN201410203610 A CN 201410203610A CN 104036978 B CN104036978 B CN 104036978B
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- spring
- contact pressure
- guide rod
- pin bushing
- spring base
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Abstract
The present invention relates to single spring contact pressure apparatus of a kind of isolation strip earthed switch and actuating method thereof, be relatively big for solving existing similar volume, the technical problem not good enough with two station insulated tension pole cross-species transferability and design. After this list spring contact pressure apparatus is characterized by guide rod, contact pressure spring, guide pin bushing fit successively, 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 spring base, and the guide rod long sliding hole stretching out guide pin bushing arranges driving shaft pin. When the gate-dividing state that 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; Continuing to make guide pin bushing stress 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, and in guide pin bushing income spring base, contact pressure spring deforms upon, and now this list spring contact pressure apparatus is closing position; When driving shaft pin drives guide rod to stretch out spring base, contact pressure spring is earthing position when deforming upon simultaneously.
Description
Technical field
The present invention relates to the isolation strip earthed switch of high-voltage switch electric appliance, be 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 interrupters of high-voltage switch electric appliance generally have combined floodgate, separating brake, three stations of ground connection, when combined floodgate and ground connection, must provide for contact pressure, and provide pressure to all the time dynamic and static contact in contact burning value, to ensure dynamic/static contact reliable contacts, could realize closing a floodgate or ground connection operation. In order to provide two contrary pressure directly or indirectly to dynamic and static contact, generally can only taking the form with two groups of springs, one group of spring provides contact pressure when closing for giving, and another group spring is for providing contact pressure during to ground connection. Three station vacuum interrupters are when actually used, it is generally adopted two station vacuum interrupters and three station vacuum interrupters are cast into an entirety, insulated tension pole is driven to realize closing point two states by two station operating mechanisms, three position mechanism drives three station insulated tension poles, it is achieved splitting or integrating isolation and splitting or integrating landing operation. Wherein, the isolation static contact of three station vacuum interrupters, grounding static contact and vacuum interrupter are linked to be overall vacuum arc-chutes is again fixing on-board the circuit breaker. When two station arc-chutes are in conjunction position, the moving contact of three station arc-chutes can be only in every clutch position, now electric current is by end of incoming cables (main bus-bar) logical dynamic two station static contacts, two station moving contacts, be flexible coupling, three station moving contacts, three station static contacts to leading-out terminal, form a loop. When two station arc-chutes are in point position, the moving contact of three station arc-chutes first falls back on isolation point position, fall back on ground connection again and close position, then close two station vacuum interrupters, now electric current is by end of incoming cables (main bus-bar) logical dynamic two station static 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 it is relatively big that above-mentioned existing like product exists volume, the technical problem not good enough with two station insulated tension pole versatilities and structural design remains to be further improved.
Summary of the invention
For overcoming above-mentioned deficiency, it is an object of the invention to provide single spring contact pressure apparatus and the actuating method thereof of a kind of isolation strip earthed switch to this area, it is made to solve existing similar volume relatively big, the technical problem not good enough with two station insulated tension pole versatilities and structural design.Its objective is to be achieved through the following technical solutions.
A kind of single spring contact pressure apparatus of isolation strip earthed switch, this list spring contact pressure apparatus includes 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 static contact, moving contact, contact pressure spring it is provided with in spring base, guide rod is " T " font, guide rod external diameter in spring base is provided with contact pressure spring, one end of contact pressure spring is limited in this side T-shaped positive stop end of guide rod, and the other end of guide rod stretches out spring base; It is characterized in that the spring base external part external diameter of described guide rod is provided with guide pin bushing, namely guide rod stretches out the centre bore of guide pin bushing, guide pin bushing is inserted in the guide rod hole stretching out spring base, guide pin bushing is " T " font, the T-shaped 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 between the T-shaped positive stop end of guide rod and the T-shaped positive stop end of guide pin bushing respectively mutually, and guide rod stretches out the end of spring base and guide pin bushing simultaneously and is 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. Namely when spring base taken in by guide rod, there is combined floodgate and separating brake two states in this list spring contact pressure apparatus, as guide rod and threaded connector offset, it it is "on" position when contact pressure both ends of the spring offsets with threaded connector, guide pin bushing respectively, now, the outboard end that driving shaft pin is positioned on guide rod long sliding hole; When on guide rod, driving shaft pin continues to spring base side shifting, in guide pin bushing stress income spring base, contact pressure spring deforms upon, 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 deforms upon, and now this list spring contact pressure apparatus is gate-dividing state. When otherwise guide rod stretches out spring base, guide rod move to contact pressure both ends of the spring offset with threaded connector, guide pin bushing respectively time, continue to move to the driving shaft pin on guide rod, when driving shaft pin slip recovers the outboard end to long sliding hole, and continue through driving shaft pin and drive guide rod when moving outside spring base, contact pressure spring continues to deform upon, and now this list spring contact pressure apparatus is ground state.
Described threaded connector is " T " font, and the T-shaped extension of threaded connector is outer link, and T-shaped positive stop end is the threaded ends of threaded connector internal diameter and spring base internal diameter. By regulating the connection between threaded connector and spring base, and then regulate guide rod space of stroke chamber in spring base; The outer link of the threaded connector other end is easy to this list spring contact pressure apparatus handling on high-voltage switch gear.
After described guide rod, contact pressure spring, guide pin bushing fit successively, being inserted in the other end to spring base from one end of spring base, 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-shaped positive stop end; Spring base be inserted in guide rod, contact pressure spring, guide pin bushing this end be threaded connection head guide rod, contact pressure spring, guide pin bushing be packaged in spring base, the guide rod long sliding hole stretching out guide pin bushing arranges driving shaft pin, and this list spring contact pressure apparatus gets final product installation. This list spring contact pressure apparatus Assembling Production above-mentioned is convenient, stability, safety are good, the stroke of spring base inner guide is threaded connection easy to adjust, list spring contact pressure apparatus is threaded connection head, driving shaft pin is installed on high-voltage switch gear for this, consequently facilitating general with two station insulated tension poles.
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 it is open position that the driving shaft pin on guide rod is positioned at this list spring contact pressure apparatus during the outboard end of long sliding hole;Continuing to make guide pin bushing stress 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, and in guide pin bushing income spring base, contact pressure spring deforms upon, and now this list spring contact pressure apparatus is closing position; When driving shaft pin drives guide rod to stretch out spring base, contact pressure spring is earthing position when deforming upon simultaneously. Thus when closing a floodgate, the distance of contact permission scaling loss is: under gate-dividing state, driving shaft pin presses guide pin bushing further, guide pin bushing stroke in spring base. During ground connection, contact allows the distance of scaling loss to be: under ground state, and 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, safety are good; Be suitable as the isolation strip earthed switch contact pressure device of high-voltage switch electric appliance three station vacuum extinction cell structure, ex hoc genus anne the further improvement of product.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram during open position before actuating of the present invention.
Fig. 2 be actuating of the present invention to closing position time sectional structure schematic diagram, in figure, arrow is the Impact direction of driving shaft pin.
Fig. 3 be actuating of the present invention to earthing position time sectional structure schematic diagram.
Fig. 4 is the perspective view of the present invention.
Fig. 5 is the detonation configuration schematic diagram 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.
Detailed description of the invention
In conjunction with accompanying drawing, present configuration and use are further described. Namely as shown in Fig. 1～Fig. 5, this list spring contact pressure apparatus includes threaded connector 1, spring base 2, guide rod 3, contact pressure spring 4, guide pin bushing 5, driving shaft pin 6, after described guide rod, contact pressure spring, guide pin bushing fit successively, it is 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-shaped positive stop end; Spring base be inserted in guide rod, contact pressure spring, guide pin bushing this end be threaded connection head guide rod, contact pressure spring, guide pin bushing be packaged in spring base, the guide rod long sliding hole stretching 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 in " T " font, and guide pin bushing is limited in spring base by T-shaped positive stop end, and contact pressure both ends of the spring is butted between the T-shaped positive stop end of guide rod and the T-shaped positive stop end of guide pin bushing respectively mutually; The T-shaped extension of threaded connector is outer link, and T-shaped positive stop end is the threaded ends of threaded connector internal diameter and spring base internal diameter.
Described in 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 to deform upon, can reach the "on" position of Fig. 2. Namely as in figure 2 it is shown, this list spring contact pressure apparatus is driven guide pin bushing by contact pressure spring-compressed by driving shaft pin, it is threaded connection head and the pressure in one direction is provided to dynamic/static contact; Meanwhile, as it is shown on figure 3, driven guide rod compression contacts compression spring by driving shaft pin, it is threaded connection head and provides a reciprocal pressure to dynamic/static contact.
Below for the practical operation of isolation earthing switch (EDS), the illustratively whole motor process (including manual operation and electric operating) of this list spring contact pressure apparatus, namely by closing position to open position, the more whole motor process to earthing position operation. 1, by " separating brake " to " combined floodgate ": this list spring contact pressure apparatus is driven guide pin bushing by contact pressure spring-compressed by driving shaft pin, is threaded connection head and provides the pressure (namely shown in Fig. 2, open position) in a direction to dynamic/static contact.2, by " separating brake " to " ground connection ": driven guide rod compression contacts compression spring by driving shaft pin, it is threaded connection head and provides a reciprocal pressure (namely shown in Fig. 3, earthing position) to dynamic/static contact. Thus force of sliding friction when present invention decreases dynamic/static contact separating brake, close a floodgate, make separating brake, closing position more accurate.
Claims (3)
1. single spring contact pressure apparatus of an isolation strip earthed switch, this list spring contact pressure apparatus includes 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 and external static contact, moving contact connects, contact pressure spring it is provided with in spring base, guide rod is " T " font, guide rod external diameter in spring base is provided with contact pressure spring, one end of contact pressure spring is limited in this side T-shaped positive stop end of guide rod, the other end of guide rod stretches out spring base, it is characterized in that described guide rod (3) stretches out spring base (2), external part external diameter is provided with guide pin bushing (5), namely guide rod stretches out the centre bore of guide pin bushing, guide pin bushing is inserted in the guide rod hole stretching out spring base, guide pin bushing is " T " font, the T-shaped 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 between the T-shaped positive stop end of guide rod and the T-shaped positive stop end of guide pin bushing respectively mutually, and guide rod stretches out the end of spring base and guide pin bushing simultaneously and is 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, after described guide rod (3), contact pressure spring (4), guide pin bushing (5) fit successively, it is 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-shaped positive stop end, spring base is inserted in guide rod, contact pressure spring, guide pin bushing, it is threaded connection head (1) and guide rod, contact pressure spring, guide pin bushing are packaged in spring base, the guide rod long sliding hole stretching out guide pin bushing arranges driving shaft pin (6), and this list spring contact pressure apparatus gets final product installation.
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 in " T " font, the T-shaped extension of threaded connector is outer link, and T-shaped positive stop end is the threaded ends of threaded connector internal diameter and spring base (2) internal diameter.
3. 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 it is open position that the driving shaft pin on guide rod is positioned at this list spring contact pressure apparatus during the outboard end of long sliding hole; Continue to make guide pin bushing (5) stress 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 deforms upon, and now this list spring contact pressure apparatus is closing position; When driving shaft pin drives guide rod to stretch out spring base, contact pressure spring is earthing position when deforming upon 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 CN104036978A (en) | 2014-09-10 |
| CN104036978B true 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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| CN (1) | CN104036978B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106328424B (en) * | 2016-10-26 | 2019-04-09 | 湖南长高高压开关集团股份公司 | A kind of upper conductive arm of the flexible clamp type disconnecting switch of folding arm |
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 |
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| Publication number | Publication date |
|---|---|
| CN104036978A (en) | 2014-09-10 |
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Granted publication date: 20160615 Termination date: 20210513 |