CN201601070U - Electric operation mechanism for high voltage isolating switch - Google Patents
Electric operation mechanism for high voltage isolating switch Download PDFInfo
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- CN201601070U CN201601070U CN2010201053338U CN201020105333U CN201601070U CN 201601070 U CN201601070 U CN 201601070U CN 2010201053338 U CN2010201053338 U CN 2010201053338U CN 201020105333 U CN201020105333 U CN 201020105333U CN 201601070 U CN201601070 U CN 201601070U
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- isolating switch
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A special electric operation mechanism for a high voltage isolating switch solves the potential safety hazard problem of field welding of an output shaft and an isolating switch operating rod and comprises a case body and a mechanical drive device, an electric control device and a manual-electric locking device assembled inside the case body. The electric operation mechanism is characterized in that in the mechanical drive device, a geared sleeve and a bull gear are engaged with each other to form a primary shift, the geared sleeve is fixed on a motor output shaft, a worm shaft and a worm wheel are engaged with each other to form a secondary shift, one end of the worm shaft parallel to the motor output shaft is fixed with the bull gear, and the mechanism output shaft fixed on the worm wheel protrudes out of the case body end to connect with the isolating switch operating rod through a half-split type connecting sleeve. The electric operation mechanism has reasonable design, labor-saving manual operation, compact structure, small volume and convenient maintenance. The connection between the mechanism output shaft and the isolating switch operating rod needs no field welding, so as to improve the safety and reliability of field installation work and greatly improve the overall esthetic appearance of the mechanism.
Description
Technical field
The utility model relates to a kind of improved electric operating mechanism, particularly a kind of compact conformation, attractive in appearance, and on-the-spot installation is safe, easy to maintenance, and stable electric operating mechanism of high-voltage isolating switch divides, closes a floodgate.Belong to High-Voltage Electrical Appliances corollary equipment field.
Background technology
Along with the national grid unattended operation transformer station, roll up, to being widely used in the high voltage isolator branch in the electric power system, the electric operating mechanism of combined floodgate usefulness, especially be main operational power with motor, make the high voltage isolator action response rapidly the electric operating mechanism demand also increasing, therefore, not only requiring has manually operated function, and the serviceability and the face shaping of these electric operating mechanisms are all had higher requirement.
As everyone knows, the transmission device of existing electric operating mechanism of high-voltage isolating switch mostly is the spur gear transmission greatly, bolt and nut one shift fork transmission, worm screw, worm gear gear drive always etc., the inventor is once at existing this type of isolating switch electric operating mechanism, as patent announcement number is CN2049298U " operating mechanism of screw pair link rod transmission ", notification number be CN2484629's " a kind of motor operating mechanism that is used for high voltage isolator ", notification number be CN2682566Y's " electric operating mechanism of ac high-voltage isolating switch ", notification number be CN2640016Y's " high voltage isolator; earthed switch electric operating mechanism ", notification number is that the volume that exists of the transmission device in CN2857195Y's the patented technologies such as " a kind of high voltage isolator electric operating mechanisms " is big, impulse inertia is big, problems such as noise is big, successively design " the high voltage isolator motor operating mechanism " that notification number is CN2472326Y, notification number is that CN2517092Y's " a kind of high voltage isolator motor operating mechanism " and notification number is a kind of patented products such as " electric operating mechanism of outdoor AC high-voltage segregate switch " of CN101308733A, solved the problem of above-mentioned existence preferably, it has been had operate steadily, noninertia impacts, advantages such as noise is little.Through constantly transmission device being improved, under the situation of casing constancy of volume, increased outputting torsion, transmit torque on isolating switch branch, the combined floodgate joystick by output shaft, reach the purpose of the high voltage isolator that can spur 252kV～550kV.Also improved electronic-manual switch mechanism simultaneously, manual branch, closing operation speed are realized and electronic branch, contract step, it is long to have solved the lonely time of isolation switch contact combustion, problems such as contact burning.Also have a large number of existing electric operating mechanism directly to adopt decelerator to realize machine driving.Because the built-in lubricating oil of decelerator, its normal working temperature is+40 ℃～-10 ℃, when cold district or winter, particularly ambient temperature reach below-20 ℃, can't normally carry out isolating switch branch, closing operation, and its application is limited by environmental condition.Aspect the electrical interlock output signal, owing to be subjected to the influence of auxiliary switch powder operation device dead-centre position, the adjusting of straight connecting rod is restricted.In addition, being connected between electric operating mechanism output shaft and the isolating switch actuating bar now basically also must on-the-spot welded and installed.This connected mode has been run counter to State Grid Corporation of China and has been guaranteed safe regulation about the on-the-spot installation exercise of isolating switch, still can not fully satisfy the requirement of user security operation, remains further perfect.
The utility model content
Provide a kind of high voltage isolator special electric operating mechanism order of the present utility model, it has fundamentally solved electric operating mechanism and has used problems such as potential safety hazard limited and output shaft and the on-the-spot welding existence of isolating switch actuating bar, remove the manual and electronic branch that keeps existing electric operating mechanism, outside the advantage in contract step, also have reasonable in design, manually actuating is laborsaving, compact conformation, reduce to take up room, characteristics easy to maintenance, its output shaft not only need not on-the-spot weld with being connected of isolating switch actuating bar, increase the security reliability of on-the-spot installation exercise, and further shorten the branch of isolating switch, closing time, improve and divide, the stability that closes a floodgate and move in the useful life of prolongation isolating switch, significantly increases its whole aesthetic appearance.
The technical scheme that the utility model adopted is: this electric operating mechanism of high-voltage isolating switch comprises the mechanical driving device in the casing that has the mechanism's output shaft that is connected with isolating switch actuating bar and the assembling casing, electric apparatus control apparatus and manual-electronic electric blocking device, its technical essential is: constitute the one-level speed change by geared sleeve that is meshed and gear wheel in the described mechanical driving device, and described geared sleeve is fixed on the motor output shaft, constitute two stage speed change by worm shaft that is meshed and worm gear, and described worm shaft one end and the described gear wheel that are arranged in parallel with described motor output shaft are fixedly assembled, the other end is and the exposed junction of hand crank coupling that the cabinet end of stretching out that is fixed on the described mechanism output shaft in the described worm gear axis hole connects with described isolating switch actuating bar by half dissection type adapter sleeve.
The mechanism's output axle head that is fixed on the described worm gear is provided with guide vane end stop, and the arc connecting rod that is hinged on the described guide vane end stop connects with the connecting lever that drives auxiliary switch rotation and output electric signal by straight connecting rod.
Described half dissection type adapter sleeve is by stretching out the following fixed cover that cabinet end connects with described mechanism output shaft and the last chuck plate that connects with described isolating switch actuating bar constitutes, described strap and the described following fixed cover that has dog screw of going up the chuck plate is connected as a single entity, and ambulatory splint is linked together by securing member and described strap.
Advantage and the good effect that the utlity model has are: because this electric operating mechanism of high-voltage isolating switch is formerly improved on the architecture basics of patent " electric operating mechanism of outdoor AC high-voltage segregate switch " the inventor, so kept existing electric operating mechanism manually with electronic branch, the advantage in contract step; Because of it does not adopt the decelerator transmission of the built-in lubricating oil of existing machinery transmission device,, solved electric operating mechanism and used limited problem so no longer be subjected to the constraint of environmental condition; Cancelled motor output shaft and one-level speed change worm-wheel shaft utilize the coupling direct connection on same axis form, the two-stage speed change of its mechanical driving device is arranged side by side, promptly directly be fixed on the motor output shaft geared sleeve of one-level speed change, the gear wheel that is meshed with geared sleeve is fixed on worm shaft one end of the two stage speed change that is arranged in parallel with motor output shaft, both manually actuating was more laborsaving, can further shorten the branch of isolating switch again, closing time, increase and divide, the stability that closes a floodgate and move, prolong the conductive contact of isolating switch and the useful life of fingertip, so it is reasonable in design, compact conformation, shortened the axial drive length of motor widely, obviously reduce to take up room, make maintenance convenient, significantly increase its whole aesthetic appearance; The cabinet end of stretching out that will be fixed on the mechanism's output shaft on the worm gear simultaneously connects with high voltage isolator actuating bar by half dissection type adapter sleeve, need not on-the-spot welding, it has not only fundamentally eliminated the problems such as potential safety hazard of output shaft and the on-the-spot welding existence of isolating switch actuating bar, and increased the security reliability of on-the-spot installation exercise, fully satisfy the requirement of user security operation.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is an I type structural representation of the present utility model.
Fig. 2 is an II type structural representation of the present utility model.
Fig. 3 is the structural representation of a kind of mechanical driving device of the present utility model.
Fig. 4 is a kind of half dissection type adapter sleeve structural representation of the present utility model.
Fig. 5 is the cutaway view of Fig. 4 along the A-A line.
Fig. 6 is an electrical schematic diagram of the present utility model.
Sequence number explanation among the figure: 1 control button, 2 mechanical driving devices, 3 auxiliary switches, 4 mechanism's output shafts, 5 half dissection type adapter sleeves, 6 isolating switch actuating bars, 7 motor, 8 casings, 9 door handles, 10 Qianmens, 11 appliance mounting panels, 12 auxiliary switch connecting levers, 13 straight connecting rods, 14 bow type connecting rods, 15 gear wheels, 16 flat keys, 17 geared sleeves, 18 bearings, 19 worm shafts, 20 worm gears, 21 limiting blocks nail, 22 guide vane end stops, 23 securing members, 24 straps, 25 ambulatory splints, 26,27 dog screws, 28 times fixed covers, the M motor, the QM motor starter, KM1, the KM2 contactor, the QF1 miniature circuit breaker, SA is closely controlled, control change over switch far away, the SB1 switch knob, the SB2 opening button, SB3 is far controlled switch knob, SB4 is far controlled opening button, SD-motor starter auxiliary contact, GF16 circuit breaker interlocking contact, EF17 earthed switch interlocking contact, XW1 combined floodgate limit switch, XW2 separating brake limit switch, the manual limit switch of XW3, the EM scram button, the KT time relay.
Embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1～6.This electric operating mechanism of high-voltage isolating switch comprises the mechanical driving device 2 in the casing 8 that has the mechanism's output shaft 4 that is connected with isolating switch actuating bar 6 and the assembling casing, electric apparatus control apparatus and manually-parts such as electronic electric blocking device.Electric apparatus control apparatus and manually-electronic electric blocking device inventor's basic structure in the patent " electric operating mechanism of outdoor AC high-voltage segregate switch " formerly still wherein.Mechanical driving device 2 is set to the two-stage gear of compact conformation, and promptly the one-level speed change is made of geared sleeve 17 that is meshed and gear wheel 15; Two stage speed change is made of worm shaft 19 that is meshed and worm gear 20.The geared sleeve 17 of one-level speed change utilizes bearing 18 and flat key 16 to be fixed on motor 7 output shafts, and worm shaft 19 1 ends and the gear wheel 15 of the two stage speed change that is arranged in parallel with motor 7 output shafts are fixedly assembled, worm shaft 19 other ends are and the exposed junction of hand crank coupling that the exposed junction that hand crank inserts worm shaft 19 can carry out manual operation.The cabinet end of stretching out that is fixed on the mechanism's output shaft 4 in worm gear 20 axis holes connects with isolating switch actuating bar 6 by half dissection type adapter sleeve 5, so that eliminate mechanism's output shaft 4 and the potential safety hazard that the 6 on-the-spot welding of isolating switch actuating bar exist, increase the security reliability of on-the-spot installation exercise.For easier install at the scene and make things convenient for adjust isolating switch actuating bar 6, above-mentioned half dissection type adapter sleeve 5 adopts brand new, it is by stretching out the following fixed cover 28 that cabinet end connects with mechanism output shaft 4 and the last chuck plate that connects with isolating switch actuating bar 6 constitutes, mainly comprise the securing member 23 that constitutes by bolt, nut and spring washer, strap 24, have the ambulatory splint 25 of dog screw 27 and have the parts such as following fixed cover 28 of dog screw 26.The strap 24 of wherein going up the chuck plate is connected as a single entity with following fixed cover 28, makes the Contiuum type structure, and ambulatory splint 25 is linked together by securing member 23 and strap 24, isolating switch actuating bar 6 is carried out the fastening jail of locating clip of axial and circumferential; Mechanism's output shaft 4 in the following fixed cover 28 of last chuck plate is by its axle head keyway, and the location that the bolt 26 under utilizing on the fixed cover 28 carries out axial and circumferential holds out against reinforces.When needs are adjusted isolating switch actuating angle, unclamp the securing member 23 of last chuck plate of half dissection type adapter sleeve 5 and the dog screw 26 of ambulatory splint 25, can in 360 ° of scopes, rotate isolating switch actuating bar 6 arbitrarily, after the anglec of rotation mixed up, the dog screw 26 of tightening fastener parts 23 and ambulatory splint 25 got final product.
Since mechanism's output shaft 4 stretch out cabinet end different according to the position of the high voltage isolator of its adapted and earthed switch mounting means, the utility model electric operating mechanism of high-voltage isolating switch can be designed to I type (perpendicular output shaft as shown in Figure 1) structure and II type (left horizontal output shaft as shown in Figure 2 or right horizontal output shaft) structure.Present embodiment mainly is elaborated in conjunction with I type structure.
For the ease of electric apparatus control apparatus accurately controlling organization output shaft 4 drive the angle that isolating switch actuating bars 6 rotate, the mechanism's output axle head that is fixed on the worm gear 20 can be provided with guide vane end stop 22, and the arc connecting rod 14 that is hinged on the guide vane end stop 22 is connected with the connecting lever 12 that drives auxiliary switch 3 rotations and output electric signal by straight connecting rod 13.
During manual operation, hand crank is inserted the exposed junction of worm shaft 19, carry out manual operation.Owing to be directly to rotate the worm gears 20 that are meshed with it by worm shaft 19, drive output shaft 4 and rotate, reduced hand operation revolution, output shaft 4 Rotate 180s °, isolating switch branch, closing time have been shortened in hand rotation＜30 commentaries on classics, promptly laborsavingly save time again.At the on-load branch, when closing a floodgate, can effectively reduce the lonely time of combustion, reduce the scaling loss of isolating switch conductive contact and fingertip, prolong the useful life of contact and fingertip.Above-mentioned each driving member adopts novel alloy to make or adopt the plating hard chromium on surface treatment technology, can satisfy its instructions for use, can adapt to the environmental condition in any area of China.
The electrical installation principle: as the miniature circuit breaker QF1 that closes, the control circuit power connection is pressed switch knob SB1 contactor KM1 adhesive.Connect motor M power supply,, motor M is rotated by starter QM.Drive isolating switch actuating bar 6 by mechanical driving device 2, clockwise direction rotates, and when guide vane end stop 22 touched the travel switch XW1 of the limiting block nail 21 on the casing 8, isolating switch closed a floodgate and finishes.When pressing opening button SB2, motor M power supply is connected in contactor KM2 adhesive, by starter QM, makes motor M backward rotation.Drive isolating switch actuating bar 6 by mechanical driving device 2 and counterclockwise rotate, when guide vane end stop 22 touched travel switch XW2, the isolating switch separating brake was finished.Time relay KT is a second class protection, and scram button EM is the special requirement setting, and motor starter auxiliary contact SD is when breaking down, and the closing of contact is sent fault-signal.Control far away, closely control change over switch SA, far control switch knob SB3, far control opening button SB4, circuit breaker interlocking contact GF16, earthed switch interlocking contact EF17, the user can select for use according to actual needs.
This electric operating mechanism can be used for actuating 252kV and inside and outside high voltage isolator in following various family and earthed switch.
Claims (3)
1. electric operating mechanism of high-voltage isolating switch, comprise the mechanical driving device in the casing that has the mechanism's output shaft that is connected with isolating switch actuating bar and the assembling casing, electric apparatus control apparatus and manual-electronic electric blocking device, it is characterized in that: constitute the one-level speed change by geared sleeve that is meshed and gear wheel in the described mechanical driving device, and described geared sleeve is fixed on the motor output shaft, constitute two stage speed change by worm shaft that is meshed and worm gear, and described worm shaft one end and the described gear wheel that are arranged in parallel with described motor output shaft are fixedly assembled, the other end is and the exposed junction of hand crank coupling that the cabinet end of stretching out that is fixed on the described mechanism output shaft in the described worm gear axis hole connects with described isolating switch actuating bar by half dissection type adapter sleeve.
2. electric operating mechanism of high-voltage isolating switch according to claim 1 is characterized in that; The mechanism's output axle head that is fixed on the described worm gear is provided with guide vane end stop, and the arc connecting rod that is hinged on the described guide vane end stop connects with the connecting lever that drives auxiliary switch rotation and output electric signal by straight connecting rod.
3. electric operating mechanism of high-voltage isolating switch according to claim 1 is characterized in that; Described half dissection type adapter sleeve is by stretching out the following fixed cover that cabinet end connects with described mechanism output shaft and the last chuck plate that connects with described isolating switch actuating bar constitutes, described strap and the described following fixed cover that has dog screw of going up the chuck plate is connected as a single entity, and the ambulatory splint that has dog screw connects with described strap by securing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201053338U CN201601070U (en) | 2010-02-02 | 2010-02-02 | Electric operation mechanism for high voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201053338U CN201601070U (en) | 2010-02-02 | 2010-02-02 | Electric operation mechanism for high voltage isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201601070U true CN201601070U (en) | 2010-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201053338U Expired - Fee Related CN201601070U (en) | 2010-02-02 | 2010-02-02 | Electric operation mechanism for high voltage isolating switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN201601070U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545139A (en) * | 2013-10-22 | 2014-01-29 | 江苏靖江互感器厂有限公司 | Load disconnecting switch |
| CN105552768A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Electricity-verification and grounding operation method for multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
-
2010
- 2010-02-02 CN CN2010201053338U patent/CN201601070U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545139A (en) * | 2013-10-22 | 2014-01-29 | 江苏靖江互感器厂有限公司 | Load disconnecting switch |
| CN103545139B (en) * | 2013-10-22 | 2016-06-29 | Abb（中国）有限公司 | A kind of load-break switch |
| CN105552768A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Electricity-verification and grounding operation method for multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20110202 |