CN102856128B - Overtravel adjuster for direct current high-speed circuit-breaker - Google Patents
Overtravel adjuster for direct current high-speed circuit-breaker Download PDFInfo
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- CN102856128B CN102856128B CN201210330020.6A CN201210330020A CN102856128B CN 102856128 B CN102856128 B CN 102856128B CN 201210330020 A CN201210330020 A CN 201210330020A CN 102856128 B CN102856128 B CN 102856128B
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- inner sleeve
- speed circuit
- high speed
- direct current
- busbar
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Abstract
The invention discloses an overtravel adjuster for a direct current high speed circuit-breaker, which comprises a direct current high speed circuit-breaker base, a switch-on mechanism arranged on a first insulating vertical plate of the direct current high speed circuit-breaker base, and an upper busbar and a lower busbar respectively fixed on a second insulating vertical plate of the direct current high speed circuit-breaker base. An inner sleeve is arranged in an outer cylinder of the switch-on mechanism, the outer cylinder is fixed on an outer side of the first insulating vertical plate through the inner sleeve, one end of the upper busbar is fixedly connected with a stationary contact, one end of the lower busbar is hinged with the lower end of a moveable contact, and the other ends of the upper and lower busbars are respectively connected with power supply input and output ends correspondingly. The overtravel adjuster further comprises an adjusting nut screwed at one end of the inner sleeve, the end face of which leans against the outer side of the first insulating vertical plate. The overtravel adjuster for the direct current high speed circuit-breaker is simple in structure and convenient to adjust the overtravel length, ensures an ideal contact pressure between the moveable and stationary contacts, and improves the performance of the direct current high speed circuit-breaker.
Description
Technical field
The present invention relates to a kind of DC high speed circuit breaker, the excess of stroke adjusting device particularly when a kind of DC high speed circuit breaker combined floodgate or separating brake.Belong to power supplying and distributing equipment technical field.
Background technology
DC high speed circuit breaker is mounted in the electric protective device between power supply and load unit, for the protection of the load equipment of motor, transformer and transmission line.The excess of stroke refers to the completely closed rear mobile distance of moving contact of contacts of vacuum switch.The effect of the excess of stroke mainly contains and ensures that contact still can keep certain contact after electrical wear; Touch spring power can be utilized during contact closure to cushion, reduce spring; When the contact separating brake of DC high speed circuit breaker, make moving contact obtain certain initial kinetic energy, break melting welding point, improve initial opening velocity, reduce the arcing time, thus improve the speed of medium recovery.If the excess of stroke is too little, just can not ensure contact due contact pressure after scaling loss, meanwhile, initial opening velocity diminishes, and can affect breaking and making and the dynamic and thermal stability performance of vacuum switch, even produces reclosing springing; If the excess of stroke is too large, the combined floodgate merit of operating mechanism can be increased, make combined floodgate become extremely unreliable.Adopt the Contact of flat board between the dynamic and static contact of DC high speed circuit breaker, ensure that contact is good, the necessary adjustable of length of the excess of stroke, contact suitable between the dynamic and static contact of guarantee.The existing DC high speed circuit breaker excess of stroke is design phase fixed nonadjustable length, the excess of stroke change that the error of accumulating because of processing and the assembling of DC high speed circuit breaker parts all can cause, the excess of stroke being difficult to realize the complete DC high speed circuit breaker of assembling is consistent, and has a strong impact on the performance of DC high speed circuit breaker.
Summary of the invention
The object of the present invention is to provide a kind of DC high speed circuit breaker excess of stroke adjusting device, the excess of stroke realizing DC high speed circuit breaker is adjustable, reduces to greatest extent because machining accuracy and rigging error are on the impact of the excess of stroke, thus better enhances product performance.
Object of the present invention is achieved by the following technical programs:
A kind of DC high speed circuit breaker excess of stroke adjusting device, comprise DC high speed circuit breaker base, be arranged on the switching-on mechanism on the first insulation riser of DC high speed circuit breaker base, be separately fixed at the upper busbar on the second insulation riser of DC high speed circuit breaker base from high to low, lower busbar, inner sleeve is provided with in the outer cylinder of switching-on mechanism, outer cylinder is fixed on the first insulation riser lateral surface by inner sleeve, described upper busbar one end is fixedly connected with fixed contact, described lower busbar one end and moving contact lower end hinged, the upper busbar other end, the lower busbar other end respectively with corresponding power input, power output end is connected, also comprise adjusting nut, described adjusting nut screws on inner sleeve one end, and adjusting nut end face is resisted against on the first insulation riser lateral surface.
Object of the present invention realizes by the following technical programs further:
Aforesaid DC high speed circuit breaker excess of stroke adjusting device, wherein said inner sleeve outer end is provided with inner sleeve flange, several trip bolts through inner sleeve flange are fixedly connected with inner sleeve and outer cylinder, and inner sleeve flange is also fixed on the first insulation riser lateral surface by several securing member.
Aforesaid DC high speed circuit breaker excess of stroke adjusting device, wherein said adjusting nut screws on inner sleeve flange, and adjusting nut end face is resisted against on the first insulation riser lateral surface, and described adjusting nut radial equipartition is several pulls mouth; Described adjusting nut adopts fine thread to be connected with inner sleeve.
Structure of the present invention is simple, excess of stroke length adjustment is convenient, guarantees contact ideal between dynamic and static contact, and minimizing machining accuracy and rigging error are on the impact of the excess of stroke to greatest extent, improve the performance of DC high speed circuit breaker.
Advantage and disadvantage of the present invention, by for illustration and explanation for the non-limitative illustration passing through preferred embodiment below, these embodiments, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 2.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in FIG. 1 to 3, the present invention includes DC high speed circuit breaker base 1, be arranged on the switching-on mechanism 2 on the first insulation riser 11 of DC high speed circuit breaker base 1, be separately fixed at the upper busbar 13 on the second insulation riser 12 of DC high speed circuit breaker base 1 from high to low, lower busbar 14, and adjusting nut 3, upper busbar 13 one end is fixedly connected with fixed contact 15, moving contact 16 stands upright in the prong 141 of lower busbar 14 one end, hinged by lateral pin 17 and moving contact 16 lower end, upper busbar 13 other end is connected with power input copper bar, lower busbar 14 other end is connected with power output end copper bar by the row that is flexible coupling.Inner sleeve 22 is provided with in the outer cylinder 21 of switching-on mechanism 2, inner sleeve 22 one end is provided with inner sleeve flange 221,4 trip bolts 23 through inner sleeve flange 221 are fixedly connected with inner sleeve 22 and outer cylinder 21, and inner sleeve flange 221 is also fixed on the first insulation riser 11 lateral surface by 4 fastening bolts 24, nut 25.Adjusting nut 3 screws on inner sleeve flange 221, and adjusting nut 3 end face is resisted against on the first insulation riser 11 lateral surface.Adjusting nut 3 radial equipartition 6 rectangles pull mouth 31, be convenient to rotating adjusting nut 3.For the ease of fine setting, adjusting nut 3 adopts fine thread to be connected with inner sleeve 22.
When DC high speed circuit breaker is closed a floodgate, under the promotion of electromagnetic force, push rod 26 in the inner sleeve 22 of switching-on mechanism 2 overcomes the elastic force of spring 27, promote the shift fork 261 being positioned at push rod 26 front end, shift fork 261 promotes to be fixed on moving contact 16 supermedial U-shaped draw-in groove 161 both sides, its the hinged center of moving contact 16 moving being arranged in shift fork 261 is rotated clockwise, and moving contact 16 upper end is resisted against on fixed contact 15 and completes combined floodgate.
The adjustment of moving contact 16 excess of stroke is performed such:
First the fastening bolt 24, the nut 25 that connect inner sleeve flange 221 and the first insulation riser 11 is unclamped, but fastening bolt 24 or clamp nut 25 are not pulled down, then adjusting nut 3 is rotated with specific purpose tool by pulling mouth 31, inner sleeve flange 221 end face is made to depart from the first insulation riser 11 lateral surface, now move outside shift fork 251, promote moving contact 16 to be resisted against on fixed contact 15, ensure contact required between dynamic and static contact.
In addition to the implementation, the present invention can also have other execution modes, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of application claims.
Claims (1)
1. a DC high speed circuit breaker excess of stroke adjusting device, comprise DC high speed circuit breaker base, be arranged on the switching-on mechanism on the first insulation riser of DC high speed circuit breaker base, be separately fixed at the upper busbar on the second insulation riser of DC high speed circuit breaker base from high to low, lower busbar and adjusting nut, inner sleeve is provided with in the outer cylinder of switching-on mechanism, outer cylinder is fixed on the first insulation riser lateral surface by inner sleeve, described upper busbar one end is fixedly connected with fixed contact, described lower busbar one end and moving contact lower end hinged, the upper busbar other end, the lower busbar other end respectively with corresponding power input, power output end is connected, described adjusting nut screws on inner sleeve one end, and adjusting nut end face is resisted against on the first insulation riser lateral surface, described inner sleeve one end is provided with inner sleeve flange, and the several trip bolts through inner sleeve flange are fixedly connected with inner sleeve and outer cylinder, and inner sleeve flange is also fixed on the first insulation riser lateral surface by several securing member, it is characterized in that, described adjusting nut screws on inner sleeve flange, and adjusting nut end face is resisted against on the first insulation riser lateral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210330020.6A CN102856128B (en) | 2012-09-10 | 2012-09-10 | Overtravel adjuster for direct current high-speed circuit-breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210330020.6A CN102856128B (en) | 2012-09-10 | 2012-09-10 | Overtravel adjuster for direct current high-speed circuit-breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102856128A CN102856128A (en) | 2013-01-02 |
| CN102856128B true CN102856128B (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210330020.6A Active CN102856128B (en) | 2012-09-10 | 2012-09-10 | Overtravel adjuster for direct current high-speed circuit-breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN102856128B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201608131U (en) * | 2010-02-09 | 2010-10-13 | 上海立新电器控制设备有限公司 | Magnetic latching direct-current quick breaker |
| CN201616397U (en) * | 2009-08-06 | 2010-10-27 | 乐清市牵引机电厂 | Permanent-magnet switching on/off DC intelligent circuit breaker |
| CN201946496U (en) * | 2010-11-20 | 2011-08-24 | 潢川县电业局 | Over stroke protective device for circuit breaker transmission bar |
| CN102353480A (en) * | 2011-07-12 | 2012-02-15 | 北京邮电大学 | Normal pressure applying device |
| CN202307675U (en) * | 2011-10-28 | 2012-07-04 | 中国西电电气股份有限公司 | Overtravel adjusting device for vacuum switch contact |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4933521A (en) * | 1988-09-12 | 1990-06-12 | Saint Switch, Inc. | Floating release point switch |
-
2012
- 2012-09-10 CN CN201210330020.6A patent/CN102856128B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201616397U (en) * | 2009-08-06 | 2010-10-27 | 乐清市牵引机电厂 | Permanent-magnet switching on/off DC intelligent circuit breaker |
| CN201608131U (en) * | 2010-02-09 | 2010-10-13 | 上海立新电器控制设备有限公司 | Magnetic latching direct-current quick breaker |
| CN201946496U (en) * | 2010-11-20 | 2011-08-24 | 潢川县电业局 | Over stroke protective device for circuit breaker transmission bar |
| CN102353480A (en) * | 2011-07-12 | 2012-02-15 | 北京邮电大学 | Normal pressure applying device |
| CN202307675U (en) * | 2011-10-28 | 2012-07-04 | 中国西电电气股份有限公司 | Overtravel adjusting device for vacuum switch contact |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102856128A (en) | 2013-01-02 |
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