CN201260044Y - Shutter operating mechanism of metallic enclosing switch apparatus - Google Patents
Shutter operating mechanism of metallic enclosing switch apparatus Download PDFInfo
- Publication number
- CN201260044Y CN201260044Y CNU2008201855666U CN200820185566U CN201260044Y CN 201260044 Y CN201260044 Y CN 201260044Y CN U2008201855666 U CNU2008201855666 U CN U2008201855666U CN 200820185566 U CN200820185566 U CN 200820185566U CN 201260044 Y CN201260044 Y CN 201260044Y
- Authority
- CN
- China
- Prior art keywords
- valve
- support arm
- bracing frame
- pin shaft
- bracket
- 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.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/24—Shutters or guards
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a valve operating mechanism for a metal closed switch device, which comprises an upper valve, a lower valve, two moving mechanisms and two connecting bars; wherein, the moving mechanism comprises a supporting arm, a supporting bracket, a rotating bracket, a connecting plate bracket, a pulling spring, a torsion spring, a front roller and a rear roller; wherein, the supporting arm is hinged on the supporting bracket; the rotating bracket is fixed at the inner side of the supporting arm; the front roller and the rear roller are arranged on the rotating bracket; the connecting plate bracket is structured by two connecting plates, a connecting component and a rear pin shaft; two connecting plates are respectively arranged at the both sides of the supporting bracket and are hinged on the supporting bracket through the pin shaft; the rear pin shaft is arranged in a limiting groove of the supporting arm and an arc-shaped groove of the supporting bracket; one end of the pulling spring arranged at the both sides of the supporting bracket is connected with the connecting component, and the other end is connected with the rear pin shaft of the supporting arm; the torsion spring is arranged between the supporting arm and the supporting bracket; the rear end of the supporting arm is hinged with the connecting bar; and the two connecting bars are respectively connected with the upper valve and the lower valve. The valve operating mechanism has the advantages that the structure is reasonable, the working stroke is small, and the valve movement is rapid and stable.
Description
Technical field
The utility model relates to a kind of valve-operation mechanism of metal enclosed switchgear, belongs 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 utility model provides a kind of rational in infrastructure, and impulse stroke is little, valve motion rapidly, the valve-operation mechanism of metal enclosed switchgear stably.
The utility model 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 utility model 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 utility model has been 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 utility model, 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 utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model motion.
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, 2-upward valve, 3-connecting rod, 4-following valve, 5-support arm, 5-1-stopper slot, 6-spring base, 7-rear roller, 8-bracing frame, 8-1-deep-slotted chip breaker, 9-pivoted frame, 10-front wheel, 11-rear pin shaft, 12-bearing pin, 13-connecting plate, 14-connector, 15-extension spring, 16-circuit breaker guide rail, 17-torsion spring, 18-interstage sleeve, 19-pin, 20-copper sheathing.
Embodiment
See shown in Fig. 1～4 that the valve-operation mechanism of the utility model metal enclosed switchgear comprises valve 2, down valve 4, two motions and two connecting rods 3.
See shown in Fig. 1～4 that motion of the present utility model 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 utility model 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 utility model, 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 utility model 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.
During the utility model work, 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 (6)
1, 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 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 gone up valve respectively and are connected with following valve.
2, according to the valve-operation mechanism of the described metal enclosed switchgear of claim 1, it is characterized in that: the displacement of described support arm stopper slot is at 6mm～15mm.
3,, it is characterized in that support frame as described above is the trough plate of middle part projection, and the both sides of trough plate has installed surface according to the valve-operation mechanism of the described metal enclosed switchgear of claim 1.
4, according to the valve-operation mechanism of the described metal enclosed switchgear of claim 1, it is characterized in that: on the described rear pin shaft copper sheathing is installed, copper sheathing is installed in the stopper slot of support arm.
5, according to the valve-operation mechanism of the described metal enclosed switchgear of claim 4, it is characterized in that: also be installed in interstage sleeve on the described rear pin shaft, interstage sleeve withstands on the outer end of copper sheathing.
6, 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 roller respectively, and roller is installed on the valve guide rail of both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201855666U CN201260044Y (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 |
|---|---|---|---|
| CNU2008201855666U CN201260044Y (en) | 2008-09-09 | 2008-09-09 | Shutter operating mechanism of metallic enclosing switch apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201260044Y true CN201260044Y (en) | 2009-06-17 |
Family
ID=40774281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201855666U Expired - Lifetime CN201260044Y (en) | 2008-09-09 | 2008-09-09 | Shutter operating mechanism of metallic enclosing switch apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201260044Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359813B (en) * | 2008-09-09 | 2010-06-02 | 伊顿电力设备有限公司 | Shutter operating mechanism of metallic enclosing switch apparatus |
| CN111193215A (en) * | 2020-03-24 | 2020-05-22 | 上海西门子开关有限公司 | Valve driving mechanism, valve mechanism and handcart linkage mechanism of switch cabinet |
| US20230020170A1 (en) * | 2019-12-04 | 2023-01-19 | Ls Electric Co., Ltd. | Switchboard having rotating shutter structure |
-
2008
- 2008-09-09 CN CNU2008201855666U patent/CN201260044Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359813B (en) * | 2008-09-09 | 2010-06-02 | 伊顿电力设备有限公司 | Shutter operating mechanism of metallic enclosing switch apparatus |
| US20230020170A1 (en) * | 2019-12-04 | 2023-01-19 | Ls Electric Co., Ltd. | Switchboard having rotating shutter structure |
| US11804698B2 (en) * | 2019-12-04 | 2023-10-31 | Ls Electric Co., Ltd. | Switchboard having rotating shutter structure |
| CN111193215A (en) * | 2020-03-24 | 2020-05-22 | 上海西门子开关有限公司 | Valve driving mechanism, valve mechanism and handcart linkage mechanism of switch cabinet |
| CN111193215B (en) * | 2020-03-24 | 2024-03-08 | 上海西门子开关有限公司 | Valve driving mechanism, valve mechanism and handcart linkage mechanism of switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090617 |