CN100380551C - Operating unit for switchgear - Google Patents
Operating unit for switchgear Download PDFInfo
- Publication number
- CN100380551C CN100380551C CNB2003801103912A CN200380110391A CN100380551C CN 100380551 C CN100380551 C CN 100380551C CN B2003801103912 A CNB2003801103912 A CN B2003801103912A CN 200380110391 A CN200380110391 A CN 200380110391A CN 100380551 C CN100380551 C CN 100380551C
- Authority
- CN
- China
- Prior art keywords
- wheel shaft
- convex wheel
- roller
- geosynclinal convex
- switch
- 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
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 230000005284 excitation Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000027455 binding Effects 0.000 description 1
- 238000009739 binding Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3047—Power arrangements internal to the switch for operating the driving mechanism using spring motor adapted for operation of a three-position switch, e.g. on-off-earth
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
Abstract
An operating unit for a switchgear in which a stop position accuracy is enhanced during motor operation and a stop position accuracy (withdrawable range of a handle) is also enhanced during manual operation. Rotation of a cam shaft (5) having a cylindrical surface provided with a groove (10) engaging with a roller (13) drives the roller (13) to rotate the output shaft (11). Axial displacement for rotation of the grooved shaft (5) is eliminated in the vicinity of the stop position so that the output shaft (11) does not rotate even if the grooved shaft (5) is rotated.
Description
Technical field
The present invention relates to operator for switch, relate in particular to function that has open circuit shutter and earthing device concurrently and the operator for switch that carries out the switching of " connection ", " disconnection ", " ground connection " these three kinds of location statuss with an operator.
Background technology
The operating mechanism of the 3-position on-off of switching that circuit breaker and earthing device constitute functionally as the circuit breaker that has earthing device, having concurrently, carry out " connection ", " disconnection ", " ground connection " these three kinds of location statuss with an operating means, the operating mechanism that for example has patent documentation 1 to be recorded and narrated.
" connection " that the operator that patent documentation 1 (TOHKEMY 2003-22735 communique) is recorded and narrated switches shutter for by motor or manual handle output shaft being turned round, " disconnection ", the operator for switch of " ground connection ", wherein possess: the lobe plate of being located at output shaft, be formed at " connection " with shutter at the periphery of lobe plate, " disconnection ", the recess of the part of " ground connection " each position correspondence, and be formed at lobe plate the surface and with the pin of the switch butt that motor is stopped, be provided with the cam rotation of being rotated by the periphery application of force of lobe plate with roller and locking with roller, the cam follower lver that revolution by lobe plate moves up and down, cam rotation is positioned at " connection " of lobe plate with roller, make locking be limited to the rotating maintenance breech lock of this recess locking output shaft with roller during " disconnection " or " ground connection " position, the recess that detects lobe plate rotates with the sensitive switch that engages of roller with by moving horizontally of securing rod with cam rotation, unload latch-release parts that locking unlocks with roller and with the latch-release bar of magnet drives from the recess that keeps breech lock.
There are the following problems in above-mentioned patent documentation 1 described operator for switch.
(1) deviation appears in the stop position during electric operating: though stopping to make the limit switch action in front of the target location, make power brake act on motor, because braking characteristic is dependent on load and operating voltage, so the deviation of stop position is bigger.
(2) the stop position scope during manual operation is big: though form the structure that operating grip can not come off beyond assigned position, this scope is big.
(3) control system complexity: stop position detects has four with limit switch, needs a plurality of auxiliary relays.
Summary of the invention
The invention provides and a kind ofly improved the stop position precision in the electric operating and improve stop position precision (handle is extracted allowed band) in the manual operation, reduce auxiliary relay and operator for switch that control system is simplified.
(1) the present invention makes the rotating structure of output shaft for the revolution by the geosynclinal convex wheel shaft by the groove driven roller.Operator for switch of the present invention, by: with actuating force be delivered to the movable part of shutter body output shaft, constitute the bar of one, be provided in the roller of the front end of bar pivotally with output shaft, constitute with the geosynclinal convex wheel shaft that on drum surface, has formed the groove that engages with roller, revolution pair roller by the geosynclinal convex wheel shaft drives, make the output shaft revolution, it is characterized in that, described geosynclinal convex wheel shaft form make groove with respect to the rotating axial displacement of axle at the stop position of shutter nearby than in the stop position of shutter in addition the little shape of part nearby.
(2) near stop position, eliminated the rotating axial displacement of groove, even the motor rotary output shaft does not turn round yet with respect to the geosynclinal convex wheel shaft.
(3) with the load torque of shutter base side roughly inversely setting slot make the torque of induction-motor load effect certain with respect to the rotating axial displacement rate of geosynclinal convex wheel shaft.
(4) make the recess collision of collision roller and lobe plate and it is stopped.In order to reduce to collide caused impact, collide with the upstream side (low torque side) of decelerator.
(5), motor is stopped with the whereabouts of limit switch collision detection roller.
(6) mounting or dismounting of restriction handle under the state that the collision roller does not fall.
Description of drawings
Fig. 1 is the oblique view of the operating mechanism of expression one embodiment of the invention.
Fig. 2 is an example of the grooved rail mark of geosynclinal convex wheel shaft of the present invention.
Fig. 3 is the graphical representation of the grooved rail mark of Fig. 2.
The curve chart of torque transfer rate when Fig. 4 has used the grooved rail mark of Fig. 2 for expression.
Embodiment
Fig. 1 is the oblique view of the operating mechanism of expression one embodiment of the invention.In Fig. 1, the spur gear 3 by motor reel 2 and transmit the turning power of motor 1 with the spur gear 4 of its engagement makes 5 revolutions of geosynclinal convex wheel shaft.
In addition, also can not use motor 1, but manual handle 6 and motor reel 2 bindings are made spur gear 4 revolutions, thereby make 5 revolutions of geosynclinal convex wheel shaft.Form groove 7 on manual handle 6, handle mounting or dismounting confinement plate 8 can be come in and gone out in groove 7.Apply the power that handle mounting or dismounting confinement plate 8 is left from groove 7 by spring 9, enter into groove 7 by making handle mounting or dismounting confinement plate 8, and make manual handle 6 not come off.
On the side face of geosynclinal convex wheel shaft 5, be formed with groove 10 vertically continuously.Configuration roller 13 in groove 10, this roller 13 is installed on the bar 12 of output shaft 11 of shutter, and by the revolution of geosynclinal convex wheel shaft 5, roller 13 is guided by groove 10, and bar 12 rotates to the left and right.
In addition, in the end of geosynclinal convex wheel shaft 5 lobe plate 14 is set, the collision roller 17 of cam follower lver 16 is come in and gone out in the recess 15 that is formed on the lobe plate 14.Cam follower lver 16 is so that the mode that collision roller 17 enters recess 15 by back-moving spring 18 application of forces, when by release coil 19 pushing cam follower lvers 16, is collided roller 17 and broken away from from recess 15, and geosynclinal convex wheel shaft 5 can turn round.When cam follower lver 16 was urged, limit switch 20 detected this state, opens (ON) motor circuit.
Under the situation of manual handle operation, when cam follower lver 16 was urged, handle mounting or dismounting confinement plate 8 entered the groove 7 of manual handle 6, makes manual handle 6 not come off.
Then, the action to operator for switch of the present invention describes.
(1) electric operating
Fig. 1 represents the state of centre position (open position in on-off-ground connection).Collision roller 17 drops in the recess 15 of lobe plate the revolution of lock slots camshaft 5 under this state.
When accepting the making operation instruction, make release coil 19 excitations by not shown control device, cam follower lver 16 is released coil 19 pushings and revolts back-moving spring 18 to the clockwise direction revolution, and collision roller 17 is deviate from from the recess 15 of lobe plate 14, and geosynclinal convex wheel shaft 5 can turn round.Limit switch 20 detects this state, opens (ON) motor circuit.
The revolution of motor 1 is delivered to geosynclinal convex wheel shaft 5 by spur gear 3, spur gear 4, and geosynclinal convex wheel shaft 5 is to revolution counterclockwise.To driving, output shaft 11 turns round to counter clockwise direction (connection direction) by bar 12 roller 13 quilts that engage with the groove 10 of geosynclinal convex wheel shaft 5 towards left.When grooved cam 5 had turned round to a certain degree, collision roller 17 was taken on the arc surface edge of lobe plate 14, and continuing maintenance geosynclinal convex wheel shaft 5 can rotating state.Limit switch 20 detects this state, removes the excitation of release coil 19.
Revolution is proceeded, and when 5 revolutions about of geosynclinal convex wheel shaft were changeed, collision roller 17 dropped in the recess 15 of lobe plate 14, and cam follower lver 16 is towards revolution counterclockwise.Limit switch 20 detects this state, cuts off (OFF) motor circuit.Though motor 1 is proceeded inertia motion for a moment (fall and send), because collision roller 17 stops fully with the wall collision of the recess 15 of lobe plate.
Fig. 2 is an example of the grooved rail mark of geosynclinal convex wheel shaft 5 of the present invention, and Fig. 3 is its graphical representation, and Fig. 4 is the curve chart of its torque transfer rate of expression.Because axial displacement is certain near three place's stop positions, so even collision roller 17 stops at the recess 15 interior any places of lobe plate 14, the stop position of output shaft 11 does not change yet.
In Fig. 2, the axial displacement of groove 10 is set lessly with respect to the rate of change of angle in connection, ground connection side, set greatlyyer in the disconnection side, so, torque transfer rate (output shaft torque,/motor reel torque) becomes the characteristic for the load torque that approaches the shutter base side as shown in Figure 4, can make the load torque of motor 1 roughly certain.
(2) manual operation
In the state of Fig. 1, collision roller 17 drops in the recess 15 of lobe plate 14, the revolution of lock slots camshaft 5, and handle mounting or dismounting confinement plate 8 resets in addition, becomes the state that can install and remove handle.
Manual handle 6 is installed on the motor reel 2.When pushing not shown switch, make release coil 19 excitations, cam follower lver 16 is to the clockwise direction revolution, and collision roller 17 is deviate from from the recess 15 of lobe plate, and geosynclinal convex wheel shaft 5 can turn round.
When to clockwise direction revolution manual handle 6, geosynclinal convex wheel shaft 5 is to revolution counterclockwise.Roller 13 quilts that engage with the groove 10 of geosynclinal convex wheel shaft 5, turn round to counter clockwise direction (connection direction) by bar 12 output shafts 11 to driving towards left.When geosynclinal convex wheel shaft 5 turned round to a certain degree, collision roller 17 was taken the arc surface edge in lobe plate 14, and continuing maintenance geosynclinal convex wheel shaft 5 can rotating state.Limit switch 20 detects this state, removes the excitation of release coil 19.Engage with the groove 7 of manual handle 6 at this state (half-way) lower handle mounting or dismounting confinement plate 8, manual handle 6 can not come off.
Revolution is proceeded, and when 5 revolutions about of geosynclinal convex wheel shaft were changeed, collision roller 17 dropped in the recess 15 of lobe plate 14, and cam follower lver 16 is towards revolution counterclockwise.After making it further revolution, because collision roller 17 stops fully with the wall collision of the recess 15 of lobe plate.Handle mounting or dismounting confinement plate 8 resets by spring 9, becomes the state that can install and remove manual handle 6.
Operator for switch of the present invention has following effect.
(1) owing to nearby do not have groove with respect to the rotating axial position of geosynclinal convex wheel shaft at stop position Move, so, even the motor rotary output shaft does not turn round yet, the stop position in the electric operating Precision improves.
(2) it is (defeated in this scope only to have entered into the state of the recess of lobe plate at the collision roller Shaft can not turn round because of the revolution of handle) under, can extract manual handle, so, at hand Stop position precision (handle is extracted allowed band) in the moving operation improves.
(3) recess of collision roller and lobe plate collides and the geosynclinal convex wheel shaft is stopped, so, need not The dynamic brake of motor.
(4) with the axial displacement of groove with respect to the rate of change of angle connect, the ground connection side sets Littler, set greatlyyer in the disconnection side, so, torque transfer rate (output shaft torque,/motor Shaft torque) become characteristic close to the load torque of shutter base side, can be with motor Load torque remain roughly necessarily, reduce the load torque of motor.
(5) it is one owing to stopping with limit switch, so but simplified control system.
Claims (5)
1. operator for switch, by: with actuating force be delivered to the movable part of shutter body output shaft, constitute the bar of one, be provided in the roller of the front end of bar pivotally with output shaft, constitute with the geosynclinal convex wheel shaft that on drum surface, has formed the groove that engages with roller, revolution pair roller by the geosynclinal convex wheel shaft drives, make the output shaft revolution, it is characterized in that
Described geosynclinal convex wheel shaft form make groove with respect to the rotating axial displacement of axle at the stop position of shutter nearby than in the stop position of shutter in addition the little shape of part nearby.
2. operator for switch as claimed in claim 1 is characterized in that, the groove shape of described geosynclinal convex wheel shaft has roughly been set the rotating axial displacement rate of groove with respect to axle inversely with the load torque of shutter base side.
3. operator for switch as claimed in claim 1, it is characterized in that, be provided with and set integratedly with described geosynclinal convex wheel shaft and be provided with the lobe plate of recess and the collision roller that is rotated by the periphery application of force of lobe plate in the part of plectane, the collision roller fell to colliding the recess of described lobe plate when described geosynclinal convex wheel shaft was goed around for every time, and the revolution of geosynclinal convex wheel shaft stops.
4. operator for switch as claimed in claim 1 is characterized in that, carries out the driving of described geosynclinal convex wheel shaft with motor, detects the whereabouts of described collision roller with limit switch, and motor is stopped.
5. operator for switch as claimed in claim 1 is characterized in that, carries out the driving of described geosynclinal convex wheel shaft with manual handle, the mounting or dismounting of restriction handle under the state that described collision roller does not fall.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003204602A JP4262012B2 (en) | 2003-07-31 | 2003-07-31 | Switch operating device |
| JP204602/2003 | 2003-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1802721A CN1802721A (en) | 2006-07-12 |
| CN100380551C true CN100380551C (en) | 2008-04-09 |
Family
ID=34113649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801103912A Expired - Lifetime CN100380551C (en) | 2003-07-31 | 2003-12-26 | Operating unit for switchgear |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1662532B1 (en) |
| JP (1) | JP4262012B2 (en) |
| KR (1) | KR100968918B1 (en) |
| CN (1) | CN100380551C (en) |
| DE (1) | DE60326399D1 (en) |
| TW (1) | TWI256658B (en) |
| WO (1) | WO2005013304A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008158454A (en) | 2006-12-26 | 2008-07-10 | Sony Corp | Liquid crystal display device |
| KR100850422B1 (en) * | 2007-08-20 | 2008-08-04 | 엘에스산전 주식회사 | Spring charging device of air circuit breaker |
| JP5367594B2 (en) * | 2010-01-13 | 2013-12-11 | 株式会社東芝 | Switch operating device |
| DE102012008276A1 (en) * | 2011-07-25 | 2013-01-31 | Abb Technology Ag | Locking device for a drive unit of a three-position drive for a switching device of a switchgear |
| JP5839322B2 (en) * | 2011-09-29 | 2016-01-06 | ティケイディ株式会社 | 3-position switch actuator |
| CN103247494A (en) * | 2013-06-01 | 2013-08-14 | 丁云广 | Groove-wheel type power-driven or manual switching-on device based on intelligent switch |
| US10709452B2 (en) | 2013-09-23 | 2020-07-14 | Ethicon Llc | Methods and systems for performing circular stapling |
| US9907552B2 (en) | 2013-09-23 | 2018-03-06 | Ethicon Llc | Control features for motorized surgical stapling instrument |
| CN111463035A (en) * | 2020-04-17 | 2020-07-28 | 杭州乐垚生物科技有限公司 | Genetic engineering device with high safety performance and good stability |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376672Y (en) * | 1999-06-22 | 2000-05-03 | 顾方明 | Electric operation mechanism for breaker with plastics casing |
| CN2386523Y (en) * | 1999-06-10 | 2000-07-05 | 国营双城有载分接开关厂 | Switchover switch control mechanism for dry vacuum on-load tap changer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE893684C (en) * | 1939-10-11 | 1953-10-19 | Sachsenwerk Licht & Kraft Ag | Drive device for high voltage breaker |
| DE863684C (en) * | 1950-06-06 | 1953-01-19 | Heinz Kerpen | Electrical conductor with protective metal sheath |
| FR1206991A (en) * | 1957-05-28 | 1960-02-12 | Hazemeijer Co | Multipolar high current electrical switch |
| JPS5219169Y2 (en) * | 1972-06-30 | 1977-04-30 | ||
| JPS60153443U (en) * | 1984-03-23 | 1985-10-12 | 日新電機株式会社 | Mechanical interlock device for electric spring operation mechanism |
| JPH0312181Y2 (en) * | 1985-04-22 | 1991-03-22 | ||
| JPH0280926U (en) * | 1988-12-09 | 1990-06-21 |
-
2003
- 2003-07-31 JP JP2003204602A patent/JP4262012B2/en not_active Expired - Lifetime
- 2003-12-26 CN CNB2003801103912A patent/CN100380551C/en not_active Expired - Lifetime
- 2003-12-26 KR KR1020067001471A patent/KR100968918B1/en active IP Right Grant
- 2003-12-26 WO PCT/JP2003/017084 patent/WO2005013304A1/en active Application Filing
- 2003-12-26 EP EP03768387A patent/EP1662532B1/en not_active Expired - Fee Related
- 2003-12-26 DE DE60326399T patent/DE60326399D1/en not_active Expired - Lifetime
- 2003-12-31 TW TW092137693A patent/TWI256658B/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2386523Y (en) * | 1999-06-10 | 2000-07-05 | 国营双城有载分接开关厂 | Switchover switch control mechanism for dry vacuum on-load tap changer |
| CN2376672Y (en) * | 1999-06-22 | 2000-05-03 | 顾方明 | Electric operation mechanism for breaker with plastics casing |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060122807A (en) | 2006-11-30 |
| JP4262012B2 (en) | 2009-05-13 |
| CN1802721A (en) | 2006-07-12 |
| TW200504777A (en) | 2005-02-01 |
| EP1662532A4 (en) | 2007-05-30 |
| TWI256658B (en) | 2006-06-11 |
| KR100968918B1 (en) | 2010-07-14 |
| EP1662532B1 (en) | 2009-02-25 |
| WO2005013304A1 (en) | 2005-02-10 |
| DE60326399D1 (en) | 2009-04-09 |
| EP1662532A1 (en) | 2006-05-31 |
| JP2005050613A (en) | 2005-02-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiaxing letter guarantee exhibition Electromechanical Science and Technology Co.,Ltd. Assignor: TKD Corp. Contract record no.: 2010990000603 Denomination of invention: Operating device for three-position switch Granted publication date: 20080409 License type: Exclusive License Open date: 20060712 Record date: 20100806 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080409 |
|
| CX01 | Expiry of patent term |