CN204441758U - For the operating means that overhaul of line breaker is safeguarded - Google Patents
For the operating means that overhaul of line breaker is safeguarded Download PDFInfo
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- CN204441758U CN204441758U CN201420686488.3U CN201420686488U CN204441758U CN 204441758 U CN204441758 U CN 204441758U CN 201420686488 U CN201420686488 U CN 201420686488U CN 204441758 U CN204441758 U CN 204441758U
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- main shaft
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- 230000005540 biological transmission Effects 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000012423 maintenance Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model relates to a kind of operating means safeguarded for overhaul of line breaker, comprise the screw-nut mechanism with linearly operating output and torque input end of firm banking and upper setting thereof, also comprise one end and be assemblied in transmission crank arm on the Power output main shaft of respective circuit breakers for spline, linearly operating output and the other end of described transmission crank arm of screw-nut mechanism are in transmission connection to realize driving corresponding Power output main shaft reciprocating rotary by driving transmission crank arm reciprocally swinging, operating means also comprises jack, jack has the push rod of the Power output connecting lever on Power output main shaft described in pushing tow.The utility model provides a kind of operating means safeguarded for overhaul of line breaker that can realize the operation of circuit breaker Slow-disconnecting and slow-connecting.
Description
Technical field
The utility model relates to a kind of operating means safeguarded for overhaul of line breaker.
Background technology
Switchgear is the important component part of electric power system, is mainly used in cut-offfing, closing circuit normal current and fault current, or isolates high voltage source when overhaul of the equipments, provides the insulation distance that safe and reliable.And circuit breaker is the core component of switchgear; circuit breaker can cut-off, close, carry various loaded lines under normal circumstances; close and cut-off short circuit current when also can there is short trouble in the line; protect generator and transformer when having an accident, be responsible for the important task of stable power-supplying.Day by day flourish along with electric utility, electric pressure is also more and more higher, therefore needs often to carry out repair and maintenance to circuit breaker, guarantees the performance of circuit breaker.
Existing circuit breaker comprises dynamic and static contact and drives the operating mechanism of dynamic and static Contact Breaking/Making Operations lock, wherein operating mechanism is arranged on a mechanism case, operating mechanism comprises Power output main shaft, Power output main shaft is provided with Power output connecting lever, Power output connecting lever is connected with moving contact by pull bar.During work, operating mechanism realizes moving by driving the reciprocating rotary of Power output main shaft to transfer, the divide-shut brake of fixed contact, that is Power output main shaft can only realize moving, fixed contact closes a floodgate, separating brake two operating states, but in the installation of circuit breaker, debugging and maintenance process in, in order to check the motion state of arc control device or operating mechanism, prevent clamping stagnation or phenomenon of dawdling, avoid destroying transmission portion part during normal running, all wish that Power output main shaft can arbitrarily rest on required optional position, so that install, the motion process of maintenance and observation operating mechanism, search the reason gone wrong.The course of action of existing operating mechanism is uncontrollable, moving contact can only be positioned closing position or open position, to Power output main shaft Slow-disconnecting and slow-connecting or accurately can not locate, for installation, debugging and maintenance bring much inconvenience.
Utility model content
The purpose of this utility model is to provide a kind of operating means safeguarded for overhaul of line breaker that can realize the operation of circuit breaker Slow-disconnecting and slow-connecting.
In order to solve the problem, the technical solution of the utility model is:
A kind of operating means safeguarded for overhaul of line breaker, comprise the screw-nut mechanism with linearly operating output and torque input end of firm banking and upper setting thereof, also comprise one end and be assemblied in transmission crank arm on the Power output main shaft of respective circuit breakers for spline, linearly operating output and the other end of described transmission crank arm of screw-nut mechanism are in transmission connection to realize driving corresponding Power output main shaft reciprocating rotary by driving transmission crank arm reciprocally swinging, operating means also comprises jack, jack has the push rod of the Power output connecting lever on Power output main shaft described in pushing tow.
Described transmission crank arm is in transmission connection by driving member and described linearly operating output, and one end of described driving member is hinged and connected by the first bearing pin and described transmission crank arm, the other end is hinged and connected by the second bearing pin and described linearly operating output.
Described driving member is hollow sleeve structure, and first, second bearing pin described is radially threaded onto on the cover body wall of described driving member.
The linearly operating output of described screw-nut mechanism is arranged on leading screw, the torque input end of described screw-nut mechanism is arranged on screw, described firm banking is provided with the mount pad installing described screw-nut mechanism, described mount pad is provided with mechanism's installing hole, screw runs through the axial two ends of described mechanism installing hole, and the axial two ends of mechanism's installing hole are provided with the thrust ball bearing limiting described screw and move axially.
Described transmission crank arm offers be set in corresponding Power output main shaft for coincideing outer square structure on and square hole in realizing assembling with Power output main shaft spline, the outer fin place of interior square hole is provided with the bearing of trend slot to make way consistent with interior square hole bearing of trend.
The beneficial effects of the utility model are: when needs overhaul of line breaker, positioned by jack pair Power output connecting lever, then transmission crank arm spline is sheathed on Power output main shaft, jack can ensure the fail safe in transmission crank arm installation process, to dismantle subsequently jack, by to the torque input end input torque in screw-nut mechanism, the linearly operating output in screw-nut mechanism is made to export linearly operating, thus promote transmission crank arm reciprocally swinging and realize driving the reciprocating rotary of Power output main shaft, in the process of Power output main shaft reciprocating rotary, due to the mechanism characteristics of screw-nut mechanism, Power output main shaft can be made to have slower rotary speed, to reach the dynamic of circuit breaker, fixed contact Slow-disconnecting and slow-connecting object, the tool of breaking-closing operating first for product is of great significance, Power output main shaft can also be made to rest on optional position, the object of installing with handled easily personnel, debugging and overhauling simultaneously.
Accompanying drawing explanation
Fig. 1 is the using state figure of an embodiment of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is that the A-A of Fig. 1 is to cutaway view;
The structural representation of Tu4Shi Tu1Zhong screw-nut mechanism;
Fig. 5 is the structural representation of transmission crank arm in Fig. 1;
Fig. 6 is the structural representation of firm banking in Fig. 1;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is the structural representation of connector in Fig. 1;
Fig. 9 is the left view of Fig. 1;
Figure 10 is that the B-B of Fig. 8 is to cutaway view.
Embodiment
A kind of embodiment of the operating means for overhaul of line breaker maintenance is as shown in Fig. 1 ~ 10: comprise firm banking 9, the connecting bridge 23 that firm banking 9 comprises left connecting plate 21, right connecting plate 22 and is arranged between left and right connecting plate, in the present embodiment, connecting bridge is channel-section steel, right connecting plate being provided with bolt penetration hole, in bolt penetration hole, being coated with the connecting bolt 8 for being fixed on by firm banking on corresponding mechanism case 10.Firm banking is provided with the screw-nut mechanism with linearly operating output and torque input end by mount pad 6, mount pad is fixedly arranged on left connecting plate, linearly operating output in screw-nut mechanism is arranged on the leading screw 4 of screw-nut mechanism, torque input end in screw-nut mechanism is arranged on the screw 5 of screw-nut mechanism, and screw is the sleeve-like structure that an axis extends in left-right direction.Mount pad offers mechanism's installing hole, screw runs through the axial two ends of mechanism's installing hole, screw and mount pad 6 from machine mechanism installing hole to both sides between be provided with the thrust ball bearing 15 limiting screw and move axially, the torque input end of screw 5 is installed with moment of torsion input adapter 7 by screw 18, on moment of torsion input adapter, spline is connected with for the hand-held spanner 12 of operating personnel, left connecting plate is provided with the U-lag mouth 24 passed for screw.Slow-disconnecting and slow-connecting apparatus also comprises transmission crank arm 2, one end of transmission crank arm 2 offers the structural interior square hole 18 of foreign side being set in corresponding power transmission shaft 1 for spline, interior square hole has 24 sides, adjacent two sides form v-shaped structure, the connecting corner place of adjacent two v-shaped structures is provided with the bearing of trend slot to make way 19 consistent with interior square hole bearing of trend, slot to make way 19 is stepped down with the outer fin of power transmission shaft and is coordinated, can install with power transmission shaft foreign side respective outer side edges easily, if the outer fin place of interior square hole is the installation that cusp just not easily realizes power transmission shaft and interior square hole, by the number of sides in hole in many ways in increasing, transmission crank arm often turns 30 degree can be corresponding with power transmission shaft, reduce the angle of adjustment, adjustment during installation easy to use.The other end of transmission crank arm is in transmission connection by driving member 3 and the linearly operating output on leading screw 4, one end of driving member is hinged and connected with transmission crank arm by the first bearing pin 16, the other end is hinged and connected with linearly operating output by the second bearing pin 17, driving member is hollow sleeve structure, described first, second bearing pin is radially threaded onto on the cover body wall of driving member, driving member is provided with the connecting lever slot to make way for getting out of the way transmission crank arm and the leading screw slot to make way 3-1 for getting out of the way leading screw, leading screw slot to make way and connecting lever slot to make way can avoid driving member and leading screw, interfere between transmission crank arm.Operating means also comprises the vertical jack 13 arranged; jack has the push rod of the Power output connecting lever 30 on pushing tow Power output main shaft; pad respectively between jack and mechanism case and between push rod and Power output connecting lever and chock 14 is housed; chock can increase the maximum top journey of jack on the one hand; also can protect Power output connecting lever and mechanism case on the other hand, avoid jack and produce between Power output connecting lever and mechanism case wearing and tearing.
When needing overhaul of line breaker, first closing control power supply, open hydraulic mechanism pressure relief device, oil pressure is discharged into 0MPa state, then by jack and chock, Power output connecting lever is positioned, so as to avoid an accident, firm banking is fixed on mechanism case, transmission crank arm is sheathed on Power output main shaft, by spanner to screw input torque, make leading screw can export reciprocal linearly operating, leading screw drives transmission crank arm reciprocally swinging by driving member, thus realizes the reciprocating rotary of power transmission shaft.Screw is sleeve-like structure, can increase the guiding length of screw to leading screw, ensures the accurate output of leading screw linearly operating.This device has that structure is simple, convenient to operation, cost is low, in high-voltage product problem checks, and the advantages such as highly versatile detection speed is fast.In other embodiment of the present utility model; Can also by the torque input end input torque of motor to screw-nut mechanism; Certain linearly operating output also can be arranged on screw, now needs the axial limit structure that the screw spline structure arranging the rotation of restriction screw moves axially with restriction leading screw; When the limit number of the outer square structure on power transmission shaft changes, the limit number of the interior square hole in transmission crank arm also can change thereupon; Certain transmission crank arm can also be coordinated with power transmission shaft spline by other spline structure, such as is fixed on power transmission shaft by transmission crank arm by screw; Driving member also can not be established, and now the front end of leading screw and transmission crank arm are hinged and connected, and what the rear end of leading screw reciprocally swung is assemblied on mount pad; Certain chock also can not be established, now jack push rod can immediate roof on output toggle arm.Slow-disconnecting and slow-connecting apparatus may be used for, in power station field adjustable and repairing, circuit breaker to be moved to the optional position in stroke.
Claims (5)
1. the operating means safeguarded for overhaul of line breaker, it is characterized in that: the screw-nut mechanism with linearly operating output and torque input end comprising firm banking and upper setting thereof, also comprise one end and be assemblied in transmission crank arm on the Power output main shaft of respective circuit breakers for spline, linearly operating output and the other end of described transmission crank arm of screw-nut mechanism are in transmission connection to realize driving corresponding Power output main shaft reciprocating rotary by driving transmission crank arm reciprocally swinging, operating means also comprises jack, jack has the push rod of the Power output connecting lever on Power output main shaft described in pushing tow.
2. operating means according to claim 1, it is characterized in that: described transmission crank arm is in transmission connection by driving member and described linearly operating output, one end of described driving member is hinged and connected by the first bearing pin and described transmission crank arm, the other end is hinged and connected by the second bearing pin and described linearly operating output.
3. operating means according to claim 2, is characterized in that: described driving member is hollow sleeve structure, and first, second bearing pin described is radially threaded onto on the cover body wall of described driving member.
4. operating means according to claim 1, it is characterized in that: the linearly operating output of described screw-nut mechanism is arranged on leading screw, the torque input end of described screw-nut mechanism is arranged on screw, described firm banking is provided with the mount pad installing described screw-nut mechanism, described mount pad is provided with mechanism's installing hole, screw runs through the axial two ends of described mechanism installing hole, and the axial two ends of mechanism's installing hole are provided with the thrust ball bearing limiting described screw and move axially.
5. the operating means according to claim 1 ~ 4 any one, it is characterized in that: described transmission crank arm offers be set in corresponding Power output main shaft for coincideing outer square structure on and square hole in realizing assembling with Power output main shaft spline, the outer fin place of interior square hole is provided with the bearing of trend slot to make way consistent with interior square hole bearing of trend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686488.3U CN204441758U (en) | 2014-11-17 | 2014-11-17 | For the operating means that overhaul of line breaker is safeguarded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420686488.3U CN204441758U (en) | 2014-11-17 | 2014-11-17 | For the operating means that overhaul of line breaker is safeguarded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204441758U true CN204441758U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420686488.3U Active CN204441758U (en) | 2014-11-17 | 2014-11-17 | For the operating means that overhaul of line breaker is safeguarded |
Country Status (1)
| Country | Link |
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| CN (1) | CN204441758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332869A (en) * | 2014-11-17 | 2015-02-04 | 河南平高电气股份有限公司 | Operating device for repairing and maintaining breaker |
-
2014
- 2014-11-17 CN CN201420686488.3U patent/CN204441758U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332869A (en) * | 2014-11-17 | 2015-02-04 | 河南平高电气股份有限公司 | Operating device for repairing and maintaining breaker |
| CN104332869B (en) * | 2014-11-17 | 2017-02-01 | 河南平高电气股份有限公司 | Operating device for repairing and maintaining breaker |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |