CN105448588A - Breaking spring mounting support and breaker employing same - Google Patents

Breaking spring mounting support and breaker employing same Download PDF

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Publication number
CN105448588A
CN105448588A CN201510878617.8A CN201510878617A CN105448588A CN 105448588 A CN105448588 A CN 105448588A CN 201510878617 A CN201510878617 A CN 201510878617A CN 105448588 A CN105448588 A CN 105448588A
Authority
CN
China
Prior art keywords
spring base
spring
guide post
circuit breaker
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510878617.8A
Other languages
Chinese (zh)
Other versions
CN105448588B (en
Inventor
于洪宇
郭国领
李建兵
王小焕
孙立强
曹晓丽
闵伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Tianjin Pinggao Intelligent Electric Co Ltd
Original Assignee
State Grid Corp of China SGCC
Pinggao Group Co Ltd
Tianjin Pinggao Intelligent Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Pinggao Group Co Ltd, Tianjin Pinggao Intelligent Electric Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201510878617.8A priority Critical patent/CN105448588B/en
Publication of CN105448588A publication Critical patent/CN105448588A/en
Application granted granted Critical
Publication of CN105448588B publication Critical patent/CN105448588B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/666Operating arrangements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3052Linear spring motors

Abstract

The invention relates to a breaking spring mounting support and a breaker employing the same. The breaking spring mounting support comprises a guide part and a spring seat, wherein the axis of the guide part extends along the up-and-down direction; the guide part is in a split structure and comprises a pull rod and a guide rod; the upper end of the pull rod is used for being connected with a transmission crank arm; the lower end of the guide rod is used for being arranged on a support plate in a guiding manner; the spring seat is arranged on the guide rod; the spring seat and/or the guide rod are/is in transmission connection with the pull rod via threads; and reset force of a breaking spring is simultaneously applied to the spring seat and the guide rod in the adjusting process. The guide rod is arranged on the support plate in the guiding manner; and tension of the guide rod is applied to the spring seat, but not like the prior art that the reset force of the breaking spring is only applied to the spring seat, so that the problem of damage to inner threads of the spring seat in the prior art due to fact that the spring seat easily deflects and is unbalanced under the reset force of the breaking spring in the adjusting process is solved.

Description

Tripping spring erection support and use the circuit breaker of this erection support
Technical field
The present invention relates to the tripping spring erection support of circuit breaker and use the circuit breaker of this erection support.
Background technology
The tripping spring erection support great majority of existing circuit breaker are uncontrollable, uncontrollable tripping spring erection support is when installing with circuit breaker case, to waste time and energy and inconvenient, owing to being namely in stationary state after tripping spring once mounting, follow-uply in use cannot regulate its reset force, can not adjust and make it be in perfect condition and affect the service behaviour of whole circuit breaker.Market there is adjustable breaker open operation spring, if Authorization Notice No. is the Chinese invention patent of CN101587796B, disclose a kind of breaker adjustable tripping spring structure, comprise mounting panel and supporting bracket, guide plate and guide, be arranged at the tripping spring on guide plate and spring base, mounting panel is fixedly mounted on box of the circuit breaker body wall, the guide plate top of vertical installation through bearing pin and transmission crank arm hinged, bottom is then through the guide through hole on mounting panel, tripping spring to be placed on spring base lower plane and mounting panel between plane, spring base is connected with guide plate screw-driven, one is make it not need special tripping spring pre-compression device when mounted, easy for installation, two is the reset forces regulating tripping spring after assembling by spring base at any time.But also there is following shortcoming in this type of adjustable tripping spring: 1, spring base and guide plate threaded engagement, because the elastic force of tripping spring is larger, spring base is also just larger by the power of tripping spring, because the upper end of guide plate deflection can occur under the drive of transmission crank arm, what easily make in adjustment process spring base causes its internal thread to damage by force unbalance; When 2, needing again to carry out finely tuning tripping spring after once mounting terminates, needing to open panel could screw spring base or unscrew, complicated operation.
Summary of the invention
The object of the invention is to overcome the above-mentioned problems in the prior art, and provide a kind of solving in prior art to cause the internal thread of spring base to suffer the tripping spring erection support of damage problem because spring base is subject to the reset force of tripping spring uneven in adjustment process, meanwhile, the present invention also aims to provide a kind of circuit breaker using this erection support.
Tripping spring erection support of the present invention adopts following technical scheme: tripping spring erection support, comprise guide and spring base that axis extends along the vertical direction, described guide is split-type structural, guide comprises upper end and is installed on guide post in supporting bracket for the pull bar that is connected with transmission crank arm and lower end for leading, spring base is arranged on guide post, and described spring base and/or guide post and pull rod screw are in transmission connection.
Described spring base and pull rod screw are in transmission connection, and spring base is fixedly connected with guide post.
Described guide post is hollow cylindrical configuration, spring base comprise stretch into guide post inside and the adapter sleeve be connected with pull rod screw and outwards turn down for turning edge outward of coordinating with tripping spring limit block.
Described pull bar is connected with in the threaded upper ends of spring base after spring base is regulated, carries out the clamp nut of fastening effect.
Be provided with between described clamp nut and spring base and there is flexible bullet pad.
Circuit breaker of the present invention adopts following technical scheme: circuit breaker, comprise circuit breaker case and the tripping spring erection support being arranged at circuit breaker case inside, tripping spring erection support comprises the guide and spring base that axis extends along the vertical direction, described guide is split-type structural, guide comprises upper end and is installed on guide post in supporting bracket for the pull bar that is connected with transmission crank arm and lower end for leading, spring base is arranged on guide post, and described spring base and/or guide post and pull rod screw are in transmission connection.
Described spring base and pull rod screw are in transmission connection, and spring base is fixedly connected with guide post.
Described guide post is hollow cylindrical configuration, spring base comprise stretch into guide post inside and the adapter sleeve be connected with pull rod screw and outwards turn down for turning edge outward of coordinating with tripping spring limit block.
The lower end of described guide post is provided with the operating structure for coordinating with the transmission of operation spanner, the diapire of circuit breaker case is provided with the handle hole for passing for operation spanner.
Described pull bar is connected with in the threaded upper ends of spring base after spring base is regulated, carries out the clamp nut of fastening effect.
Beneficial effect of the present invention is: guide is split-type structural, comprise upper end and be installed on guide post in supporting bracket for the pull bar that is connected with transmission crank arm and lower end for leading, spring base is arranged on guide post, spring base and/or guide post and pull rod screw are in transmission connection, in adjustment process, the reset force of tripping spring is applied to spring base and guide post simultaneously, because guide post guiding is installed in supporting bracket, spring base is subject to the pulling force of guide post, and be only applied to spring base unlike the reset force of tripping spring in prior art, solve in prior art and cause because spring base is subject to the easy deflection of the reset force of tripping spring uneven the problem that the internal thread of spring base is damaged in adjustment process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the tripping spring erection support in an embodiment of circuit breaker of the present invention;
Fig. 2 is the assembly structure schematic diagram of tripping spring erection support.
8-pull bar; 9-bullet pad; 10-spring base; 11-guide post; 12-clamp nut; 13-plain cushion; 14-transmission nut; 15-transmission crank arm; 16-tripping spring; 17-supporting bracket; 18-circuit breaker case.
Embodiment
Circuit breaker, the supporting bracket 17 as shown in Figure 2, comprising circuit breaker case 18, be arranged at the tripping spring erection support of circuit breaker case 18 inside, transmission crank arm 15 and be fixedly arranged on the inwall of circuit breaker case 18.Tripping spring erection support, as shown in Figure 1, comprise upper end and the hinged pull bar 8 be connected of transmission crank arm, guiding is threaded onto the guide post 11 that the axis in supporting bracket 17 extends along the vertical direction, be arranged at the spring base 10 on guide post 11, guide post 11 is arranged with tripping spring 16, supporting bracket 17 is provided with the installing hole supplying the lower end of guide post 11 to pass, in the present embodiment, guide post 11 is the tubular structure of hollow, spring base 10 comprise stretch into guide post 11 inside and the adapter sleeve be threaded with pull bar 8 and outwards turn down for turning edge outward of coordinating with tripping spring 16 limit block, spring base 10 welds with the upper end of guide post 11 and is connected, the lower end welding of guide post 11 is fixed with the transmission nut 14 for coordinating with the clutch end transmission of operation spanner, pull bar 8 is threaded above spring base 10 after spring base 10 is regulated, carries out the clamp nut 12 of fastening effect, be provided with between clamp nut 12 and spring base 10 and be sheathed on bullet pad 9 on pull bar 8 and plain cushion 13, the lower surface of spring base 10 is used for coordinating with the upper end limit block of tripping spring 16, the upper surface of supporting bracket 17 is used for coordinating with the lower end limit block of tripping spring 16.The diapire of circuit breaker case 18 is provided with for extending in circuit breaker case 18 for operation spanner with the handle hole coordinated with transmission nut 14 transmission, when needing again to carry out the adjustment of reset force size to tripping spring 16 after once mounting, be generally fine setting herein, need the panel opening circuit breaker case could regulate tripping spring in prior art, and in the present invention, do not need the panel opening circuit breaker case just can carry out finely tuning tripping spring, operation tool is extend into from the bottom of circuit breaker case 18 and carries out transmission with transmission nut 14 circuit breaker case 18 and coordinate, clamp nut can also be kept to be in tightening state while of relying on the bullet pad 9 between clamp nut 12 and spring base 10 can realize finely tuning.
The worked of circuit breaker of the present invention is called: clamp nut 12 upwards unscrews, operation spanner is used to drive guide post 11 and spring base 10 to move up along pull bar 8, tripping spring 16 is sheathed on guide post 11, by the lower end of guide post 11 through in the installing hole in supporting bracket 17, by the upper end of pull bar 8 and transmission crank arm 15 is hinged is connected, operation spanner is now used to drive transmission nut 14, distance between regulating spring seat 10 and supporting bracket 17, when tripping spring 16 compression travel meets the demands, clamp nut 12 is carried out fastening locking, complete adjustment installation process, when needs are finely tuned tripping spring 16 again, only need operation tool to stretch into from the handle hole the diapire of circuit breaker case 18 to coordinate changing distance between spring base 10 and supporting bracket 17 to regulate the size of the reset force of tripping spring 16 with transmission nut 14 transmission, and do not need the panel opening circuit breaker case 18.
In other embodiments of the invention, spring base can also be the outside projection being integrally formed at guide post upper end, and protruding lower surface is used for coordinating with tripping spring limit block, and protruding inwall is provided with screw thread for being in transmission connection with pull rod screw; The operating structure of guide post lower end, except the transmission nut for being welded in guide post lower end, can also be on the outer surface of the lower end of guide post, arrange outer square structure or arrange interior square structure on the inwall of guide post; Pull bar also can not arrange clamp nut; Between spring base and clamp nut, also bullet pad can not be set.
The embodiment of tripping spring erection support is identical with the embodiment of the tripping spring erection support in each embodiment of above-mentioned circuit breaker, repeats no more herein.

Claims (10)

1. tripping spring erection support, comprise guide and spring base that axis extends along the vertical direction, it is characterized in that: described guide is split-type structural, guide comprises upper end and is installed on guide post in supporting bracket for the pull bar that is connected with transmission crank arm and lower end for leading, spring base is arranged on guide post, and described spring base and/or guide post and pull rod screw are in transmission connection.
2. tripping spring erection support according to claim 1, is characterized in that: described spring base and pull rod screw are in transmission connection, and spring base is fixedly connected with guide post.
3. tripping spring erection support according to claim 2, it is characterized in that: described guide post is hollow cylindrical configuration, spring base comprise stretch into guide post inside and the adapter sleeve be connected with pull rod screw and outwards turn down for turning edge outward of coordinating with tripping spring limit block.
4. the tripping spring erection support according to Claims 2 or 3, is characterized in that: described pull bar is connected with in the threaded upper ends of spring base after regulating spring base, carries out the clamp nut of fastening effect.
5. tripping spring erection support according to claim 4, is characterized in that: be provided with between described clamp nut and spring base and have flexible bullet pad.
6. circuit breaker, comprise circuit breaker case and the tripping spring erection support being arranged at circuit breaker case inside, tripping spring erection support comprises the guide and spring base that axis extends along the vertical direction, it is characterized in that: described guide is split-type structural, guide comprises upper end and is installed on guide post in supporting bracket for the pull bar that is connected with transmission crank arm and lower end for leading, spring base is arranged on guide post, and described spring base and/or guide post and pull rod screw are in transmission connection.
7. circuit breaker according to claim 6, is characterized in that: described spring base and pull rod screw are in transmission connection, and spring base is fixedly connected with guide post.
8. circuit breaker according to claim 7, it is characterized in that: described guide post is hollow cylindrical configuration, spring base comprise stretch into guide post inside and the adapter sleeve be connected with pull rod screw and outwards turn down for turning edge outward of coordinating with tripping spring limit block.
9. the circuit breaker according to claim 7 or 8, is characterized in that: the lower end of described guide post is provided with the operating structure for coordinating with the transmission of operation spanner, the diapire of circuit breaker case is provided with the handle hole for passing for operation spanner.
10. circuit breaker according to claim 9, is characterized in that: described pull bar is connected with in the threaded upper ends of spring base after regulating spring base, carries out the clamp nut of fastening effect.
CN201510878617.8A 2015-12-04 2015-12-04 Tripping spring erection support and the breaker for using the erection support Active CN105448588B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510878617.8A CN105448588B (en) 2015-12-04 2015-12-04 Tripping spring erection support and the breaker for using the erection support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510878617.8A CN105448588B (en) 2015-12-04 2015-12-04 Tripping spring erection support and the breaker for using the erection support

Publications (2)

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CN105448588A true CN105448588A (en) 2016-03-30
CN105448588B CN105448588B (en) 2019-03-08

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5856643A (en) * 1997-08-18 1999-01-05 Eaton Corporation Auxiliary contact operator for electrical switching apparatus
CN2671110Y (en) * 2003-12-26 2005-01-12 周友东 Arc eliminating chamber actuator for vacuum isolating load switch
CN101587796A (en) * 2009-06-18 2009-11-25 浙江纪元电气集团有限公司 Breaker adjustable tripping spring structure
CN201417685Y (en) * 2009-05-12 2010-03-03 中国西电电气股份有限公司 Device for adjusting the pre-pressing quantity of opening springs
CN205282379U (en) * 2015-12-04 2016-06-01 天津平高智能电气有限公司 Separating brake spring mounting support and use circuit breaker of this erection support

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5856643A (en) * 1997-08-18 1999-01-05 Eaton Corporation Auxiliary contact operator for electrical switching apparatus
CN2671110Y (en) * 2003-12-26 2005-01-12 周友东 Arc eliminating chamber actuator for vacuum isolating load switch
CN201417685Y (en) * 2009-05-12 2010-03-03 中国西电电气股份有限公司 Device for adjusting the pre-pressing quantity of opening springs
CN101587796A (en) * 2009-06-18 2009-11-25 浙江纪元电气集团有限公司 Breaker adjustable tripping spring structure
CN205282379U (en) * 2015-12-04 2016-06-01 天津平高智能电气有限公司 Separating brake spring mounting support and use circuit breaker of this erection support

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