CN101359813B - Shutter operating mechanism of metallic enclosing switch apparatus - Google Patents
Shutter operating mechanism of metallic enclosing switch apparatus Download PDFInfo
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- CN101359813B CN101359813B CN2008101965020A CN200810196502A CN101359813B CN 101359813 B CN101359813 B CN 101359813B CN 2008101965020 A CN2008101965020 A CN 2008101965020A CN 200810196502 A CN200810196502 A CN 200810196502A CN 101359813 B CN101359813 B CN 101359813B
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Abstract
The invention relates to a valve control mechanism of a metal-enclosed switchgear, comprising an upper valve, a lower valve, two motion mechanisms and two connecting rods, wherein, each motion mechanism includes a supporting arm, a supporting frame, a revolving rack, a connecting plate support, a tension spring, a torsion spring as well as a front roller and a rear roller, the supporting arm is articulated on the supporting frame, the revolving rack is fixed at the inner side of the supporting arm, and the front roller and the rear roller are mounted on the revolving rack; each connecting plate support is composed of two connecting plates, a connecting piece and rear pin shafts, the two connecting plates are respectively disposed at both sides of the supporting frame and are articulated on the supporting frame through pin shafts, and the rear pin shafts are arranged in a limit groove of the supporting arm and an arc-shaped groove of the supporting frame; one end of the tension spring arranged at both sides of the supporting frame is connected with the connecting piece, and the other end thereof is connected with the rear pin shafts fixed on the supporting arm, the torsion spring is disposed between the supporting arm and the supporting frame, the rear end of the supporting arm is articulated with the connecting rods, and the two connecting rods are respectively connected with the upper valve and the lower valve. The invention has advantages of reasonable structure, small power stroke and fast and stable movement of the valve.
Description
Technical field
The present invention relates to a kind of valve-operation mechanism of metal enclosed switchgear, belong to withdraw-type switching device technical field.
Background technology
Valve mechanism is the part of withdraw-type ac metal closing switch gear and control appliance, has two convertible positions.The moving contact that it allows to remove parts when open position engages with fixed contact; The part that it becomes dividing plate or shell when off-position covers fixed contact.Traditional valve mechanism can be divided into translation slide and two kinds of forms of rotation overhead door substantially, and its kind of drive can be divided into connecting rod transmission, the transmission of chain connecting rod and gear connecting rod transmission etc. again.As 3.6kV-24kV complete set of equipments valve mechanism commonly used, block charged fixed contact by two active clapboards (PM level or PI level), remove parts such as circuit breaker cart etc. and then drive active clapboard along guide rod slip realization closure or openness by transmission mechanism.During maintenance,, also carry additionally lockset at the transmission link of valve mechanism for preventing mistakenly entering charged chamber.As CN2443513Y disclosed " a kind of safety valve device of many open types switch cubicle ", constitute hoisting mechanism by mounting panel, the supporting plate, back link and the torsion spring that are hinged on the mounting panel, valve is done at the drive lower edge of front rod guide pillar moved up and down.The rotation of supporting plate is then installed by the multidiameter that is installed in the supporting plate below, is hinged on the latch hook on the mounting panel, the support roller of latch hook front portion and the blocking mechanism control that torsion spring constitutes.Because can therefore not have under the unlocking state by blocking mechanism to supporting plate automatic blocking, valve can't be opened, and has the function of automatic blocking.But the hoisting mechanism of this this structure and blocking mechanism are to be provided with respectively, and utilize the torsion of two torsion springs to move respectively, because the energy storage of torsion spring and to release energy unbalanced, especially when promoting support roller, also need to overcome the deadweight of front-rear linkage and valve, staring torque is bigger, therefore can not reach rapid unlatching valve.Also because of the deadweight of front-rear linkage and valve, when mechanism is in extreme position, can produces vibrations and cause the valve bumpy motion.Moreover because hoisting mechanism and blocking mechanism are to be provided with respectively, valve-operation mechanism takes up room bigger, and impulse stroke is big.In addition, the rotation of this promotion connecting rod is mounted in the multidiameter on the supporting plate, and the stressed complexity of multidiameter is yielding, influences the reliability of operating mechanism work.
For the typical valve mechanism form of 40.5kV withdraw-type ac metal closing switch gear,, be foldable structure during unlatching by four hinged in twos forming of metallic plate.Drive hinged valve baffle plate and remove parts by transmission mechanism, along the dedicated track slide-open or the closure of cabinet both sides.This force transmission mechanism mostly adopts compound quadric chain, exists equally to take up room greatlyyer, and defective such as impulse stroke is big, and the valve on-off action is not asynchronous with valve action has rapidly influenced the security performance of existing product.
Summary of the invention
The purpose of this invention is to provide a kind of rational in infrastructurely, impulse stroke is little, the valve motion rapidly, the valve-operation mechanism of metal enclosed switchgear stably.
The present invention is that the technical scheme that achieves the above object is: a kind of valve-operation mechanism of metal enclosed switchgear, comprise valve, following valve, two motions and two connecting rods, it is characterized in that: described motion comprises support arm, bracing frame, pivoted frame, connecting plate support, extension spring, torsion spring and front wheel and rear roller, support arm is hinged on the bracing frame, pivoted frame is fixed on the inboard of support arm, and front wheel and rear roller are installed on the pivoted frame along circuit breaker guide rail fore-and-aft direction; The connecting plate support is made of two connecting plates and the connector and the rear pin shaft that are fixed on two forward and backward two ends of connecting plate, two connecting plates are separately positioned on the bracing frame both sides and are hinged on the front portion of bracing frame by bearing pin, and rear pin shaft is arranged in the deep-slotted chip breaker of the stopper slot of support arm and bracing frame; Extension spring one end that is arranged on the bracing frame both sides is connected with connector, the other end is connected with the spring base that is fixed on support arm, the torsion spring two ends that are installed between support arm and the bracing frame are connected on support arm and the bracing frame, support arm rear end and rod hinge connection, two connecting rods are gone up valve respectively and are connected with following valve.
Motion of the present invention is mainly by support arm, bearing and connecting plate prop up and are configured to, and the front and rear rolling wheel that is installed on the bearing is accepted outside thrust, the upset of support arm that is hinged and connecting plate support is controlled by extension spring, and the extreme position of valve motion is accurately controlled by the stopper slot on the connecting rod, compact conformation is reasonable, in case circuit breaker advances bent plate to promote front wheel or rear roller, extension spring begins energy storage, and when support arm and connecting plate support rotate surpass the equilbrium position after, the extension spring energy discharges automatically, drivening rod rapidly motion makes the monolateral quick acting of valve, because of impulse stroke reduces, so moment of inertia is little, the valve motion reaches the purpose that valve is opened fast or closed rapidly.The present invention has installed torsion spring between support arm and bracing frame, when extension spring is in the maximum tension position, can offset the self gravitation of valve and connecting rod, help motion easily to cross the dead-centre position, and under the two-way restoring force effect of torsion spring, when motion is in limes superiors position and limit inferior position, because torsion spring is subjected to twisting resistance, so can offset the impulsive force of part, when putting in place, valve can play cushioning effect, and make valve steadily reach the limit of the position.Motion of the present invention, because of front wheel and rear roller are mounted on the pivoted frame, compact conformation, motion takes up room little, be crimped on front wheel or the rear roller when circuit breaker advances bent plate, move rapidly, advance circuit breaker in the time of can preventing the valve open mode by pivoted frame and support arm control link, reduce the misoperation of valve operating mechanism, reach automatic fool proof function.
Description of drawings
Below in conjunction with accompanying drawing enforcement of the present invention is described in further detail.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of motion of the present invention.
Fig. 3 is the plan structure schematic diagram of Fig. 2.
Fig. 4 is the structural representation of the A of Fig. 1 to dismounting one side connecting plate and rear pin shaft.
Wherein: 1-valve guide rail, the last valve of 2-, 3-connecting rod, valve under the 4-, the 5-support arm, 5-1-stopper slot, 6-spring base, 7-rear roller, the 8-bracing frame, 8-1-deep-slotted chip breaker, 9-pivoted frame, 10-front wheel, the 11-rear pin shaft, 12-bearing pin, 13-connecting plate, 14-connector, the 15-extension spring, 16-circuit breaker guide rail, 17-torsion spring, the 18-interstage sleeve, 19-pin, 20-copper sheathing.
Embodiment
See shown in Fig. 1～4 that the valve-operation mechanism of metal enclosed switchgear of the present invention comprises valve 2, down valve 4, two motions and two connecting rods 3.
See shown in Fig. 1～4 that motion of the present invention comprises support arm 5, bracing frame 8, pivoted frame 9, connecting plate support, extension spring 15, torsion spring 17 and front wheel 7 and rear roller 10.This pivoted frame 9 is shaped as frame, and is fixedly connected on the inboard of support arm 5.See shown in Figure 1, support arm 5 is hinged on the bracing frame 8, this pivoted frame 9 is fixing with support arm 5 welding, or pivoted frame 9 is connected with support arm 5 by securing member, front wheel 10 and rear roller 7 are installed on the pivoted frame 9 along circuit breaker guide rail 16 fore-and-aft directions, when circuit breaker when circuit breaker guide rail 16 pushes or pulls out, advance bent plate to touch front wheel 7 or rear roller 10 rotates pivoted frame 9, thereby drive support arm 5 actions.See shown in Figure 1, the present invention also has the connecting plate support, the connecting plate support is by two connecting plates 13, being fixed on the connector 14 of two connecting plate 13 front ends and the rear pin shaft 11 at rear portion constitutes, two connecting plates 13 are separately positioned on the both sides of bracing frame 8, this bracing frame 8 is trough plates of middle part projection, and the both sides of trough plate have installed surface, be connected with the sidewall in the switchgear, be welded with fixed cover on the madial wall of bracing frame 8 projectioies, support arm 5 is hinged on the bracing frame 8 by pin 19, the bearing pin 12 that is installed in bracing frame 8 front portions is connected with two connecting plates 13, two connecting plates 13 are hinged on the front portion of bracing frame 8, support arm 5 is provided with the stopper slot 5-1 to valve limes superiors position and limit inferior position, the displacement of stopper slot 5-1 is controlled at 6mm～15mm, can be provided with according to the different demands that valve is opened distance, then be provided with a deep-slotted chip breaker 8-1 on the bracing frame 8, rear pin shaft 11 is arranged in the deep-slotted chip breaker 8-1 of the stopper slot 5-1 of support arm 5 and bracing frame 8, rear pin shaft 11 is pressed orbiting motion in the deep-slotted chip breaker 8-1 of bracing frame 8, and reciprocating motion in the stopper slot 5-1 of support arm 5.Stationarity when starting for reaching valve and easy startability are seen shown in Figure 4ly, and a copper sheathing 20 is housed on the back pivot pin 11, can replace slip by the rolling of copper sheathing 20 when back pivot pin 11 moves, and operate lightly, and manufacturability is better.Also be installed in interstage sleeve 18 on the rear pin shaft 11, interstage sleeve 18 is between support arm 5 and bracing frame 8 and withstand on the outer face of copper sheathing 20, prevents that copper sheathing 20 breaks away from the stopper slot 5-1 of support arm 5 in motion process.See shown in Fig. 1～3, two extension spring 15 1 ends that are arranged on bracing frame 8 both sides are connected with connector 14, the other end is connected with the spring base 6 that is fixed on support arm 5, with control supporting arm 5 and connecting plate 13 flip-flop movements, and torsion spring 17 is installed between support arm 5 and bracing frame 8, torsion spring 17 is enclosed within on the fixed cover, and torsion spring 17 two ends are connected on support arm 5 and the bracing frame 8, can play cushioning effect when valve reaches the limit of the position.
See shown in Figure 1ly, support arm 5 rear portions and two connecting rods 3 of two motions are hinged, and two connecting rods 3 are connected with following valve 4 with last valve 2 respectively, reach connecting rod monolateral with the valve purpose of connecting.See shown in Figure 1, being uneven in length of two connecting rods 3 of the present invention, but be connected with valve with separately motion respectively, one of them connecting rod and a short connecting rod are hinged, short connecting rod is connected with following valve 4.Two ends of going up valve 2 and following valve 4 of the present invention are connected with roller respectively, and roller is installed on the valve guide rail 1 of both sides, and not only structure is more firm, and can prevent valve weight and cause the distortion of valve guide rail 1.
When the present invention works, when circuit breaker advances the front wheel 10 of two motions of bent plate pushing, extension spring 15 beginning energy storage, when support arm 5 and connecting plate 13 rotate surpass the equilbrium position after, extension spring 15 energy discharge automatically, make support arm 5 and connecting plate 13 along bearing pin 12 upsets, rear pin shaft 11 moves in the deep-slotted chip breaker 8-1 of the stopper slot 5-1 of support arm 5 and bracing frame 8, support arm 5 drivening rods 3 move rapidly, make valve open fast, and moving contact engages with fixed contact.Simultaneously, under the effect of torsion spring 17, when last valve 2 puts in place with following valve 4, can play cushioning effect, make valve steadily reach the limit of the position.When valve advances circuit breaker under open mode, advance bent plate to promote front wheel 10, but because rotating torque is very little, pivoted frame 9 can't overturn, and makes circuit breaker can't shake into, reaches fool proof purpose.
Claims (2)
1. the valve-operation mechanism of a metal enclosed switchgear, comprise valve, following valve, two motions and two connecting rods, it is characterized in that: described motion comprises support arm, bracing frame, pivoted frame, connecting plate support, extension spring, torsion spring and front wheel and rear roller, support arm is hinged on the bracing frame, pivoted frame is fixed on the inboard of support arm, and front wheel and rear roller are installed on the pivoted frame along circuit breaker guide rail fore-and-aft direction; The connecting plate support is made of two connecting plates and the connector and the rear pin shaft that are fixed on two forward and backward two ends of connecting plate, two connecting plates are separately positioned on the bracing frame both sides and are hinged on the front portion of bracing frame by bearing pin, and rear pin shaft is arranged in the deep-slotted chip breaker of the stopper slot of support arm and bracing frame; The extension spring one end that is separately positioned on the bracing frame both sides is connected with connector, the other end is connected with the spring base that is fixed on support arm, the torsion spring two ends that are installed between support arm and the bracing frame are connected on support arm and the bracing frame, support arm rear end and rod hinge connection, two connecting rods are connected with following valve with last valve respectively, the displacement of support arm stopper slot is at 6mm～15mm, bracing frame is the trough plate of middle part projection, and the both sides of trough plate have installed surface, copper sheathing is installed on the rear pin shaft, copper sheathing is installed in the stopper slot of support arm, and on the rear pin shaft interstage sleeve is installed also, and interstage sleeve withstands on the outer end of copper sheathing.
2. according to the valve-operation mechanism of the described metal enclosed switchgear of claim 1, it is characterized in that: described two ends of going up valve and following valve are connected with other roller respectively, and this other roller is installed on the valve guide rail of both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101965020A CN101359813B (en) | 2008-09-09 | 2008-09-09 | Shutter operating mechanism of metallic enclosing switch apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101965020A CN101359813B (en) | 2008-09-09 | 2008-09-09 | Shutter operating mechanism of metallic enclosing switch apparatus |
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| Publication Number | Publication Date |
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| CN101359813A CN101359813A (en) | 2009-02-04 |
| CN101359813B true CN101359813B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101965020A Active CN101359813B (en) | 2008-09-09 | 2008-09-09 | Shutter operating mechanism of metallic enclosing switch apparatus |
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| CN (1) | CN101359813B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324708B (en) * | 2011-09-16 | 2013-10-23 | 伊顿电力设备有限公司 | Device for interlocking chassis vehicle with cabinet door of circuit breaker chamber |
| CN107370061A (en) * | 2017-08-08 | 2017-11-21 | 广东电网有限责任公司云浮供电局 | A kind of metal armored movable central switch cabinet valve mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2443513Y (en) * | 2000-10-08 | 2001-08-15 | 汕头经济特区南粤电器有限公司 | Safety movable door device for movable switch cabinet |
| CN2838111Y (en) * | 2005-06-28 | 2006-11-15 | 朱永波 | Switch cabinet |
| CN201075598Y (en) * | 2007-08-13 | 2008-06-18 | 江苏帕威尔电气有限公司 | Shutter mechanism for 10 kv alternating current metal closing switch apparatus |
| CN201260044Y (en) * | 2008-09-09 | 2009-06-17 | 常州伊顿森源开关有限公司 | Shutter operating mechanism of metallic enclosing switch apparatus |
-
2008
- 2008-09-09 CN CN2008101965020A patent/CN101359813B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2443513Y (en) * | 2000-10-08 | 2001-08-15 | 汕头经济特区南粤电器有限公司 | Safety movable door device for movable switch cabinet |
| CN2838111Y (en) * | 2005-06-28 | 2006-11-15 | 朱永波 | Switch cabinet |
| CN201075598Y (en) * | 2007-08-13 | 2008-06-18 | 江苏帕威尔电气有限公司 | Shutter mechanism for 10 kv alternating current metal closing switch apparatus |
| CN201260044Y (en) * | 2008-09-09 | 2009-06-17 | 常州伊顿森源开关有限公司 | Shutter operating mechanism of metallic enclosing switch apparatus |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2002-369321A 2002.12.20 |
| JP特开平10-108325A 1998.04.24 |
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| CN101359813A (en) | 2009-02-04 |
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| C06 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: ETON ELECTRICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: CHANGZHOU EATON SHENYUAN SWITCH CO., LTD. Effective date: 20091204 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20091204 Address after: Wang Agricultural Comprehensive Development Zone Tianning District export-oriented Jiangsu province Hexi Road Changzhou City No. 1 post encoding: 213028 Applicant after: Eaton Electric Power Equipment Co., Ltd. Address before: Wang Agricultural Comprehensive Development Zone Tianning District export-oriented Jiangsu province Hexi Road Changzhou City No. 1 post encoding: 213028 Applicant before: Changzhou Eaton Senyuan Switch Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |