CN102129922A - Switch operating device - Google Patents
Switch operating device Download PDFInfo
- Publication number
- CN102129922A CN102129922A CN2011100067559A CN201110006755A CN102129922A CN 102129922 A CN102129922 A CN 102129922A CN 2011100067559 A CN2011100067559 A CN 2011100067559A CN 201110006755 A CN201110006755 A CN 201110006755A CN 102129922 A CN102129922 A CN 102129922A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- motor
- intermittent gear
- rotation
- limit 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.)
- Granted
Links
Images
Classifications
-
- 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
- H01H3/32—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
- 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
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The present invention provides a switch operating device capable of easily achieving three-point control even in the case where the disconnector and grounding switch have different operating angle or operating amount. The switch operating device has: an electric motor (5) capable of being rotated in both positive and negative directions; a drive shaft (6) rotated by the electric motor (5); a drive-side intermittent gear (8) rotated by the drive shaft (6); a driven-side intermittent gear (10) rotated by the drive-side intermittent gear (8); a main shaft (11) that is fixed to the driven-side intermittent gear (10) to drive the contacts of the switch; a disconnector lock cam (19a) and a grounding switch lock cam (19b) fixed to the main shaft (11) to be rotated; and a disconnector lock pin (52a) and a grounding switch lock pin (52b) that are capable of being engaged with and released from the disconnector lock cam (19a) and the grounding switch lock cam (19b) and capable of inhibiting predetermined range of rotation of the main shaft (11) when being engaged.
Description
Technical field
The present invention relates to the shutter operating means, this shutter is used to make with operating means and has the contact action of shutter that three positional structures of different operating angles or stroke are arranged at circuit breaker and grounding opening-closing device.
Background technology
In the gas insulation opening and closing arrangement that in converting equipment, uses, use morely make the main contacts of circuit breaker and operation make the equipment downsizing with the main contacts sharing of grounding opening-closing device opening and closing device.This gas insulation opening and closing arrangement use by an operating means to two shutters of circuit breaker, grounding opening-closing device etc. carry out opening and closing operations, can be to " connection ", " cut-out ", " ground connection " these three operation devcie for three-position opener that the main contacts position is controlled.
On the other hand, in the standard of the JEC2310-2003 of Japanese Electrotechnical Committee (JEC) of civic organization electrical specification fact-finding meeting, the interpolar of circuit breaker is compared with the interpolar of grounding opening-closing device, requires to have 115% insulation property.Therefore, demand has been carried out the operating means that changes to the operating angle or the actuating quantity of circuit breaker, grounding opening-closing device.
Fig. 8 shows the structure that the employed in the prior art shutter that can carry out the control of three positions is used operating means.When " connection " operation of carrying out circuit breaker and grounding opening-closing device, carry out excitation by catcher coil (catch coil) 41a or 41b catcher (catch) 40a, the 40b of maintenance " cut-out " position are opened, thereby make that roller follower (roller follower) 38 can be from catcher 40a or 40b action.
Carrying out under the electrically operated situation, the actuating force of motor (motor) 5 is input to operating axis 1b, is delivered to gear 3 from gear 4 via chain (chain) 43, makes driving shaft 6 rotations, feasible driving side worm screw (worm) gear 35 rotations with combinations such as keys.The actuating force of driving side gear on worm 35 is slowed down via slave end colyliform gear 36, drives the main shaft 11 with combinations such as keys, makes that the main contacts in the gas rotates to the direction of rotation that instruction is arranged.Thus, movable side contacts part is inserted in circuit breaker with fixed contact or grounding opening-closing device fixed contact, can switches on thereby become.
The main shaft 11 that combines with slave end colyliform gear 36 with key makes plate 37 rotations that bond is closed on coaxial, and is arranged to be fixed on roller follower 38 on the plate 37 and is connected on the block 39 and can move more than the suitable angle.In addition, limit cam (limit cam) 42 is connected on fixing separately respectively limit switch 14a, 14b, 15a, the 15b, cuts off the power supply of motor 5, thus tenth skill.
Actuating force is transmitted and moved the samely when also operating during " cut-out " operation with " connection ".But when " cut-out " operated, as the mechanism's lock that is positioned at " cut-out " position, it is last locked that roller follower 38 is connected to catcher 40a, 40b, can not move more than the suitable angle.
Under manual situation, open the sluices 21a or 21b use manual handle 29, with operating axis 1a or 1b is chimeric and rotation.Move in the same manner when the transmission of the actuating force after the driving shaft 6 and electric operating.In addition, be provided with circuit breaker separately, do not constitute if do not extract earlier the words of manual handle 29 and just can not carry out next action with manual operation axle 1a and grounding opening-closing device these two manual operation axles of manual operation axle 1b.For example, constitute interlocking if close the gate 21a or the 21b that are opened, then gate 21a, 21b are locked by locking coil 23a, 23b, constitute then to carry out ground connection ON Action etc. (for example, with reference to patent documentation 1) after circuit breaker cuts off action.
In addition, in the prior art, controlling organization as three roughly the same positions of the operating angle that makes circuit breaker, grounding opening-closing device or actuating quantity, (for example use the geosynclinal convex wheel shaft in addition, with reference to patent documentation 2), lobe plate with recess (for example, with reference to patent documentation 3), the example of intermittent gear (for example, with reference to patent documentation 4), Maltese cross (for example, with reference to patent documentation 5) etc.
Patent documentation 1: TOHKEMY 2003-208837 communique
Patent documentation 2: TOHKEMY 2005-50613 communique
Patent documentation 3: TOHKEMY 2003-22735 communique
Patent documentation 4: TOHKEMY 2002-150897 communique
Patent documentation 5: Japanese kokai publication hei 5-54747 communique
But, with in the operating means, have following problem at foregoing existing shutter.Promptly, the existing control that can carry out three positions, in circuit breaker and grounding opening-closing device operating angle or the different shutter operating means of actuating quantity, transmission efficiency is relatively poor, so correspondingly the output of motor and outer deformation are big, perhaps this shutter constitute complex structure in the mode that the maintenance of " cut-out " position can be removed by catcher and catcher coil with operating means.In addition and since the motor limit switch as " connections " state of circuit breaker, grounding opening-closing device with and " cut-outs " state with setting individually respectively, so very difficult with respect to the assembling adjustment of the position of cam setting limit switch, elapsed time.
Summary of the invention
Therefore, the objective of the invention is to, even the shutter operating means that under a kind of situation that has different operating angles or actuating quantity at circuit breaker and grounding opening-closing device, also can carry out the control of three positions easily is provided.
To achieve these goals, shutter operating means of the present invention, be used to make the contact of shutter to move, described shutter has in circuit breaker three positional structures different with grounding opening-closing device operating angle or stroke, it is characterized in that, this shutter comprises with operating means: motor, can carry out positive rotation and negative rotation commentaries on classics by the switching of supply power; Driving shaft is driven in rotation by said motor; The driving side intermittent gear is driven in rotation by above-mentioned driving shaft; The slave end intermittent gear is by being driven in rotation with above-mentioned driving side intermittent gear engagement; Main shaft is fixed on the above-mentioned slave end intermittent gear, rotates with above-mentioned slave end intermittent gear and drives the contact of above-mentioned shutter; The circuit breaker locking cam is fixed on the above-mentioned main shaft and rotates with this main shaft; The grounding opening-closing device locking cam is fixed on the above-mentioned main shaft and rotates with this main shaft; The circuit breaker stop pin can engage with locking cam or breaks away from respect to above-mentioned circuit breaker, can stop the rotation of the prescribed limit of above-mentioned main shaft when engaging; And the grounding opening-closing device stop pin, can when engaging, can stop the rotation of the prescribed limit of above-mentioned main shaft with respect to above-mentioned grounding opening-closing device with locking cam engaging or disengaging.
According to the present invention, even operating angle or the different shutter of actuating quantity in circuit breaker and the grounding opening-closing device also can carry out the control of three positions easily.
Description of drawings
Fig. 1 illustrates the stereogram of shutter of the present invention with an execution mode of operating means.
Fig. 2 is with the driving side intermittent gear under " cut-out " state of operating means and the slave end intermittent gear figure from the end on observation of these gears to the shutter of Fig. 1.
Fig. 3 is with the driving side intermittent gear under " ground connection " state of operating means and the slave end intermittent gear figure from the end on observation of these gears to the shutter of Fig. 1.
Fig. 4 is with the driving side intermittent gear under " connection " state of operating means and the slave end intermittent gear figure from the end on observation of these gears with the shutter of Fig. 1.
Fig. 5 is the shutter front view of the circuit interrupter grounding shutter of operating means with the state of gate under the state of gate closure and diverter switch etc. that Fig. 1 is shown.
The front view of the state of the gate under Fig. 6 state that to be shutter that Fig. 5 is shown open with gate with the circuit interrupter grounding shutter of operating means and diverter switch etc.
Fig. 7 illustrates the figure of the shutter of Fig. 1 with the sequential of the control circuit of the motor of operating means.
Fig. 8 illustrates the stereogram of existing shutter with an example of operating means.
Description of reference numerals
1 ... circuit interrupter grounding shutter manual operation axle
1a ... circuit breaker manual operation axle
1b ... grounding opening-closing device manual operation axle
2 ... bevel gear
3 ... bevel gear
4 ... bevel gear
5 ... motor
6 ... driving shaft
7 ... planetary gear
8 ... the driving side intermittent gear
9 ... the intermittent gear block
10 ... the slave end intermittent gear
11 ... main shaft
12a ... closing of power circuit breaker limit switch cam
12b ... grounding opening-closing device is connected and is used the limit switch cam
13 ... the circuit interrupter grounding shutter cuts off uses the limit switch cam
14a ... closing of power circuit breaker limit switch (the second motor limit switch)
14b ... grounding opening-closing device is connected with limit switch (the 3rd motor limit switch)
15 ... the circuit interrupter grounding shutter cuts off with limit switch (the first motor limit switch)
15a ... the circuit interrupter grounding shutter cuts off uses limit switch
15b ... the circuit interrupter grounding shutter cuts off uses limit switch
16 ... the limit switch mounting panel
17 ... bearing
18 ... diverter switch
19a ... the circuit breaker holding (out) coil
19b ... the grounding opening-closing device holding (out) coil
20a ... the circuit breaker locking cam
20b ... the grounding opening-closing device locking cam
21 ... circuit interrupter grounding shutter gate
21a ... the circuit breaker gate
21b ... the grounding opening-closing device gate
22 ... the diverter switch misoperation prevents plate
23 ... locking coil
23a ... the circuit breaker locking coil
23b ... the grounding opening-closing device locking coil
24 ... the locking coil shield
25 ... cam
26 ... connecting rod
27 ... spring
28 ... handle anticreep plate
29 ... manual handle
30 ... the side of the positive electrode power supply
31 ... the negative side power supply
32b ... the positive rotation relay contact
33b ... the negative rotation relay contact of migrating
34 ... brake resistance
35 ... gear on worm
36 ... the colyliform gear
37 ... plate
38 ... roller follower
39 ... block
30a ... the circuit breaker catcher
40b ... the grounding opening-closing device catcher
41a ... the circuit breaker coil
41b ... the grounding opening-closing device coil
42 ... the circuit interrupter grounding shutter is connected to cut off and is used the limit switch cam
43 ... chain
40 ... motor output shaft
51 ... driving side intermittent gear axle
52a ... the circuit breaker stop pin
52b ... the grounding opening-closing device stop pin
55,56 ... tooth portion
57,58 ... arc sections
60 ... arc sections
61 ... concave surface portion
62,63 ... tooth portion
64,65 ... concave surface portion
321,322 ... the positive rotation relay contact
331,332 ... the negative rotation relay contact of migrating
Embodiment
Below, with reference to accompanying drawing, the execution mode of shutter of the present invention with operating means described.At this,, and omit repeat specification at the identical Reference numeral of identical or similar part mark with prior art shown in Figure 8.
Fig. 1 illustrates the stereogram of shutter of the present invention with an execution mode of operating means.
Motor 5 has motor output shaft 50, with reference to Fig. 7 as described later, by the switching of electric contact, can carry out positive rotation and negative rotation and change.On motor output shaft 50, be fixed with bevel gear 4, bevel gear 4 and bevel gear 3 engagements that are fixed on the driving shaft 6.
The rotating shaft of manual operation axle 1 and motor output shaft 50 are configured on the same straight line, but are axle independently in addition, are fixed with bevel gear 2 on manual operation axle 1, this bevel gear 2 and bevel gear 3 engagements that are fixed on the driving shaft 6.The direction quadrature of the direction of driving shaft 6 and motor output shaft 50 and manual operation axle 1.
The rotating shaft of the rotating shaft of driving shaft 6 and driving side intermittent gear axle 51 is located along the same line, and the rotation of driving shaft 6 is decelerated by planetary gear 7, and torque (torque) is delivered to driving side intermittent gear axle 51 after increasing.
Be fixed with on driving side intermittent gear axle 51: driving side intermittent gear 8, closing of power circuit breaker are connected with limit switch cam 12b and circuit interrupter grounding shutter with limit switch cam 12a, grounding opening-closing device and are cut off with limit switch cam 13.The cross section of the part of driving side intermittent gear axle 51 is a regular hexagon, by in the orthohexagonal through hole of the rotating center section that is formed at driving side intermittent gear 8 and above-mentioned 3 limit switch cam 12a, 12b, 13 rotating center section, connect the orthohexagonal part of cross section of driving side intermittent gear axle 51, constitute driving side intermittent gear 8,3 limit switch cam 12a, 12b, 13 with 51 rotations of driving side intermittent gear axle.In addition, these a part of cross sections also can constitute, and are the shapes that has keyway on circle, close and can rotate together by bond.
With 3 limit switch cam 12a, the opposed position of 12b, 13 bearing surface separately, dispose closing of power circuit breaker and connect with limit switch 14b, circuit interrupter grounding shutter with limit switch 14a, grounding opening-closing device and cut off with limit switch 15.These 3 limit switch 14a, 14b, 15 directions along driving side intermittent gear axle 51 are installed on the limit switch mounting panel 16 in the mode of mutual maintenance specified gap and adjacent arrangement.
Dispose main shaft 11 abreast with driving side intermittent gear axle 51, fixedly slave end intermittent gear 10, driving side intermittent gear 8 and 10 engagings of slave end intermittent gear on main shaft 11.The cross section of main shaft 11 is a regular hexagon, is located at orthohexagonal through hole on the slave end intermittent gear 10 by perforation, constitutes main shaft 11 and slave end intermittent gear 10 and together rotates.
On main shaft 11, also be fixed with circuit breaker locking cam 20a and grounding opening-closing device locking cam 20b.Using the opposed position of locking cam 20b peripheral part separately with locking cam 20a and grounding opening-closing device, dispose circuit breaker stop pin 52a, grounding opening-closing device stop pin 52b with circuit breaker.Stop pin 52a, 52b are back and forth driven with holding (out) coil 19b with holding (out) coil 19a, grounding opening-closing device point-blank by circuit breaker respectively.
If holding (out) coil 19a, 19b are energized and move towards the pairing locking cam 20a of separately stop pin 52a, 52b, 20b, then corresponding stop pin 52a, 52b and locking cam 20a, 20b engaging, the position that is rotated in regulation of main shaft 11 is prevented from.
Holding (out) coil 19a, 19b are connected with diverter switch 18, and the operation of equipment in the time of can be to manual operation is switched.
When gate 21 was opened, manual handle 29 can be carried out installation or removal with respect to manual operation axle 1.If manual handle 29 is disassembled and gate 21 closures, then can not be engaged to manual handle 29 on the manual operation axle 1.In addition, when manual handle 29 and 1 engaging of manual operation axle, 28 actions of manual handle anticreep plate can prevent that manual handle 29 breaks away from.
With reference to Fig. 2～Fig. 4, the engaging mode of driving side intermittent gear 8 and slave end intermittent gear 10 is described.Fig. 2～Fig. 4 be to the shutter of Fig. 1 with the driving side intermittent gear 8 of operating means and slave end intermittent gear 10 figure from the end on observation of these gears, Fig. 2 illustrates " cut-out " state, Fig. 3 illustrates " ground connection " state, Fig. 4 illustrates " connection " state.On driving side intermittent gear 8, form the first tooth portion 55 and the second tooth portion 56 in the position that roughly is the diagonal angle mutually, and be formed with first arc sections 57 and second arc sections 58 between these tooth portions of connection.In the central authorities of first arc sections 57, be formed with block 9 as jut.The number of teeth of the first tooth portion 55 and the second tooth portion 56 does not need identical, and for example, the number of teeth of the gear ratio second tooth portion 56 of the first tooth portion 55 is few.
Slave end intermittent gear 10 has arc sections 60 around it, has the first concave surface portion 61 at the diagonal position of arc sections 60.The length of concave surface portion 61 is shorter than second arc sections 58.Across this concave surface portion 61 respectively with the 3rd tooth portion 62 and the 4th tooth portion 63 of the first tooth portion 55 of driving side intermittent gear 8 and 56 engagements of the second tooth portion, be formed on the slave end intermittent gear 10.And, between the 3rd tooth portion 62 of slave end intermittent gear 10 and arc sections 60, form the second concave surface portion 64, between the 4th tooth portion 63 and arc sections 60, be formed with the 3rd concave surface portion 65.
Under " cut-out " state shown in Figure 2, second arc sections 58 of driving side intermittent gear 8 and the concave surface portion 61 of slave end intermittent gear 10 are mutually opposed.At this moment, no matter driving side intermittent gear 8 is to any direction rotation, during second arc sections 58 and slave end intermittent gear 10 are opposed, can not engage with slave end intermittent gear 10, thereby slave end intermittent gear 10 do not rotate.
If driving side intermittent gear 8 rotates to clockwise direction from the state of Fig. 2, the first tooth portion 55 that becomes driving side intermittent gear 8 is mutually opposed with slave end intermittent gear 10, then the 3rd tooth portion 62 engagements of first tooth portion 55 of driving side intermittent gear 8 and slave end intermittent gear 10, slave end intermittent gear 10 is to rotation counterclockwise.Afterwards, if driving side intermittent gear 8 further rotates to clockwise direction, then first arc sections 57 is mutually opposed with the arc sections 60 of slave end intermittent gear 10, so slave end intermittent gear 10 becomes and is not driven, and if driving side intermittent gear 8 further rotates to clockwise direction, then block 9 engages with the arc sections 60 of slave end intermittent gear 10, and the further clockwise direction rotation of driving side intermittent gear 8 is prevented from.This state is " ground connection " shown in Figure 3 state.
If driving side intermittent gear 8 from the state of Fig. 3 to rotation counterclockwise, then with above-mentioned roughly opposite action, slave end intermittent gear 10 rotates in the clockwise direction, turns back to " cut-out " state of Fig. 2.
If driving side intermittent gear 8 further rotates to counter clockwise direction from the state of Fig. 2, the second tooth portion 56 that becomes driving side intermittent gear 8 is mutually opposed with slave end intermittent gear 10, then the 4th tooth portion 63 engagements of second tooth portion 56 of driving side intermittent gear 8 and slave end intermittent gear 10, slave end intermittent gear 10 rotates to clockwise direction.Afterwards, if driving side intermittent gear 8 is further to rotation counterclockwise, then first arc sections 57 is mutually opposed with the arc sections 60 of slave end intermittent gear 10, so slave end intermittent gear 10 is not driven, if driving side intermittent gear 8 is further to rotation counterclockwise, then block 9 engages with the arc sections 60 of slave end intermittent gear 10, and the further rotation of driving side intermittent gear 8 is prevented from.This state is " connection " state shown in Figure 4.
Then, the action to operating means shown in Figure 1 describes.In operating means, the actuating force of motor 5 is input to driving shaft 6 via bevel gear 4,3, slows down by planetary gear 7 and amplifies torque, makes 8 rotations of driving side intermittent gear.In intermittent regions, can be to slave end intermittent gear 10 transmission of drive force.If through the engagement of intermittent regions backgear, then actuating force is delivered to slave end intermittent gear 10, driving main shaft 11.Thus, make limit switch cam 12a, the 12b, 13 that engage with main shaft 11 rotate, limit switch 14a, 14b, 15 are carried out break-make, cut off the power supply of motor 5, tenth skill.
One of structural feature of this first execution mode, as shown in Figure 1, limit switch 14a, the 14b, 15 of motor are configured in drive shaft side.
Circuit breaker and grounding opening-closing device all are provided with the mechanism lock surpassed distance (overrun) to prevent that continuous action from causing in " cut-out " position, and if the electrical interlock between other equipment be false then mechanism's locking wire circle 19a, 19b excitation and be not drawn out.Therefore, constitute and be connected to locking cam 20a, 20b and can not carry out the action of next equipment.And, and equipment between electrical interlock situation about setting up under, can move continuously.
In addition, in the prior art, surpassed distance is to the gear part of phase opposite side always in process portion at intermittence, and gears engaged portion becomes block.In order to prevent the surpassed distance after " connection " EO, in the intermittent regions of driving side intermittent gear 8 shape for lugs is set and is used as block 9.By this block function, do not need installing component, constituting at driving side and slave end all is to carry out butt at the tooth top position in addition of intermittent gear.
When manual operation, open the sluices 21, manual handle 29 is fitted on the manual operation axle 1 is rotated operation, cam 25 rotations that then engage with driving shaft 6, connecting rod 26 is pulled spring 27 along the groove that cam 25 had by drawing, manual handle anticreep plate 28 is dragged down, and manual handle anticreep plate 28 is stuck in the groove of manual handle 29.The shape of the groove of cam 25 is decided to be, and manual handle can plug when this EO.
Then, with reference to Fig. 5 and Fig. 6, the shutter of present embodiment is prevented that with the diverter switch misoperation of operating means locking mechanism describes.At this, Fig. 5 is the shutter front view of the circuit interrupter grounding shutter of operating means with the state of gate under the state of gate closure and diverter switch etc. that Fig. 1 is shown.The front view of the state of the gate under Fig. 6 state that to be shutter that Fig. 5 is shown open with gate with the circuit interrupter grounding shutter of operating means and diverter switch etc.
Structure shown here is the structure that has a manual operation axle at the operating means with three position functions.In the operating means of this structure, be provided with diverter switch can carry out remote-operated mode.
In Fig. 1, possess gate 21 in the place ahead of manual operation axle 1, during the interlocking condition, this gate 21 moves to the position that manual operation handle 29 is inserted satisfying.Just carry out the locking coil 23 of excitation when in addition, only possessing interlocking condition satisfying.Usually, manual operation axle 1 crested plate 24 covers and cannot see, misoperation prevents from can not be installed in the mode that diverter switch 18 is operated on the gate 21 when plate 22 from can make the position that manual handle 29 inserts to be opened at gate 21, and this misoperation prevents that plate 22 is used for the handle portion of diverter switch is locked.
In Fig. 5, if satisfy institute's interlocking condition, then locking coil 23 carries out excitation, the pin of locking coil 23 from the disengaging that engages of gate 21, thereby flee from the switching track of gate 21, gate 21 becomes and can move, gate 21 is opened, manual handle 29 can be inserted.Shield 24 covers so that can not see the action of pin from the front, and make operating personnel's hand touch less than.
And, utilize the misoperation be installed on the gate 21 to prevent plate 22, make on which position in " connection ", " cut-out ", " ground connection " this three position it all is, just can not carry out handover operation to diverter switch 18 as long as inserted manual handle 29.
Then, with reference to Fig. 7, the shutter of Fig. 1 control circuit with the motor 5 of operating means is described.Fig. 7 illustrates the figure of the shutter of Fig. 1 with the sequential of the control circuit of the motor of operating means.
This shutter operating means is an operation devcie for three-position opener, has motor control circuit, and this motor control circuit constitutes by " connection " operation and " cut-out " operation the direction of rotation of motor is reversed.
As shown in Figure 7, the side of the positive electrode at motor 5 has connected side of the positive electrode power supply (PM) 30 via positive rotation with relay (relay) contact 321.Connected negative side power supply (NM) 31 at the side of the positive electrode of motor 5 via the negative rotation relay contact 331 of migrating in parallel therewith.On the other hand, the negative side at motor 5 has connected negative side power supply (NM) 31 via positive rotation with relay contact 322.Connected side of the positive electrode power supply (PM) 30 in the negative side of motor 5 via the negative rotation relay contact 332 of migrating in parallel therewith.And the side of the positive electrode of motor 5 and negative side interconnect with migrate relay contact 33b and brake resistance 34 of relay contact 32b, negative rotation via the positive rotation that is connected in series mutually.
At this, positive rotation is a contact in when action closure with relay contact 321,322 and the negative rotation relay contact 331,332 of migrating.In addition, positive rotation is the b contact that disconnects in when action with relay contact 32b and the negative rotation relay contact 33b that migrates.
Motor control loop with such circuit structure, following action.At first, when " connection " operation of circuit breaker, if input is from " connection " operation commencing signal of outside, then the terminal of side of the positive electrode power supply 30 applies " connection " operating voltage, is connected a closing of contact of " connection " usefulness relay 321 between side of the positive electrode power supply 30 and the motor 5.In addition, be connected from brake resistance 34 to " connection " the negative side power supply 31 with the b contact disconnection of relay 32b, be connected from motor 5 to " connection " the negative side power supply 31 with a closing of contact of relay 322, constitute the circuit that carries out " connection " operation, carry out " connection " operation of motor direct rotational direction.
When finishing " connection " operation, " connection " end limit switch 14a uses the action interlock of cam 12a and cuts off electric current with the limit switch that is installed on the main shaft 11, and " connection " uses the contact full recovery previous status of relay 321,322,32b.
Describe when then, " cut-out " of circuit breaker being operated.That is, if input is operated commencing signal from " cut-out " of outside, then the terminal of side of the positive electrode power supply 30 applies " cut-out " operating voltage, is connected a closing of contact of " cut-out " usefulness relay 332 between side of the positive electrode power supply 30 and the motor 5.In addition, be connected from brake resistance 34 to " cut-out " the negative side power supply 31 with the b contact disconnection of relay 33b, be connected from motor 5 to " cut-out " the negative side power supply 31 with a closing of contact of relay 331, constitute the circuit that carries out " cut-out " operation, carry out " cut-out " operation of motor negative rotation veer.
" if cut-out " EO, then " cut-out " end limit switch 15 is used the action interlock of cam 13 and is cut off electric current with the limit switch that is installed on the main shaft 11, and " cut-out " uses the contact full recovery previous status of relay 331,332,33b.
In addition, in the above " connection " of circuit breaker, the control action of " cut-out " operation are illustrated, " connection " of grounding opening-closing device, " cut-out " are operated also identical, so omit explanation.
As above explanation, according to present embodiment, have at circuit breaker and grounding opening-closing device under the situation of different operating angles, as shown in Figure 1, use intermittent gear or geosynclinal convex wheel shaft etc., operating angle by setting and circuit breaker and grounding opening-closing device can be tackled the control of three position functions of two different strokes than the corresponding number of teeth or grooved cam number.
In addition, the stop pin 52a, the 52b that possess solenoid coil (solenoid coil) by utilization lock or remove cam 20a, the 20b that is installed on the main shaft 11, can improve the reliability of " cut-out " locational lock function.In addition, owing to can carry out remote operation, so improved maintainability.
In addition, according to present embodiment, with a plurality of motor limit switch 14a, 14b, 15 overlapping being fixed on the limit switch mounting panel 16, with the side configuration of limit switch mounting panel 16 along bearing 17.Thus, compare with the mode that mounting panel carries out the adjustment of switch on and off is set separately in the prior art separately, limit switch mounting panel 16 plays guiding function, becomes the structure that does not need to assemble adjustment, does not need to carry out the adjustment of switch push-and-pull direction.Therefore, the adjustment of the break-make of limit switch is simplified, and assembleability can improve.
In the prior art, sometimes at slave end configuration motor limit switch, in this case, because the machining tolerance of parts and the assembling caused gap of tolerance (back lash) produce anglec of rotation gap on driven shaft, action slows down slow and the corresponding amount of this loss.Therefore, be difficult to the rotation of driven side shaft be stopped, stop driven shaft in desirable position and just must must set the time relay etc. with high accuracy.But, according to present embodiment,, can easily control stop position by at drive shaft side configuration motor limit switch 14a, 14b, 15, can not set the time relay.
In addition,,, can prevent misoperation, improve reliability by the handle escapement is set in drive shaft side according to present embodiment.
And, according to present embodiment,, can carry out the loading and unloading of motor 5 easily by motor output shaft 50 and manual operation axle 1 are set respectively, when dismounting, also can carry out manual operation.
In addition,,, can improve the transmission efficiency of actuating force by on reducing gear, using planetary gear 7 according to present embodiment, operating means can be designed small compact more.
In addition,, utilize diverter switch 18 that a manual operation axle is switched in circuit breaker and grounding opening-closing device, can reduce number of components, compared with prior art, can make the operation devcie for three-position opener small compact by constituting according to present embodiment.
In addition, under the situation of as shown in Figure 8 prior art, have circuit breaker with and 2 manual operation axles using of grounding opening-closing device, when wanting other equipment different with the equipment that is inserted with manual handle are operated, need extract manual handle.That is, at this moment, because the interlocking condition of gate works, so prevent misoperation.
If as present embodiment, the manual operation axle is arranged to one, then after the end of job arbitrarily, can under the situation of inserting manual handle, carry out next operation continuously, the interlocking of gate is inoperative.If after manual handle has been inserted in " connection ", " ground connection " or " cut-out " position, earlier manual handle is turned to the centre position of avoiding mechanism's lock cam, diverter switch is made the selection different with content of operation continue to operate manual handle, then might be operable to the equipment state different with manual working person's intention.
For example, if connection completing place at grounding opening-closing device, make diverter switch be connected and carry out the rupturing operation of grounding opening-closing device with the circuit breaker side, then owing to do not work at " cut-out " position locking mechanism, if so be rotated further manual handle then " connection " completing place that can operate circuit breaker, the danger that had the major accident that causes earth fault etc. in the past.Operation when in addition, the transposing of circuit breaker and grounding opening-closing device being come also is same.
And in the present embodiment, must play a role at " cut-out " position mechanism lock, can prevent misoperation.
Claims (9)
1. a shutter operating means is used to make the contact of shutter to move, and described shutter has in circuit breaker three positional structures different with grounding opening-closing device operating angle or stroke, it is characterized in that,
This shutter comprises with operating means:
Motor can carry out positive rotation and negative rotation commentaries on classics by the switching of supply power;
Driving shaft is driven in rotation by said motor;
The driving side intermittent gear is driven in rotation by above-mentioned driving shaft;
The slave end intermittent gear is by being driven in rotation with above-mentioned driving side intermittent gear engagement;
Main shaft is fixed on the above-mentioned slave end intermittent gear, rotates with above-mentioned slave end intermittent gear and drives the contact of above-mentioned shutter;
The circuit breaker locking cam is fixed on the above-mentioned main shaft and rotates with this main shaft;
The grounding opening-closing device locking cam is fixed on the above-mentioned main shaft and rotates with this main shaft;
The circuit breaker stop pin can engage with locking cam or breaks away from respect to above-mentioned circuit breaker, can stop the rotation of the prescribed limit of above-mentioned main shaft when engaging; And
The grounding opening-closing device stop pin can stop the rotation of the prescribed limit of above-mentioned main shaft with respect to above-mentioned grounding opening-closing device with locking cam engaging or disengaging when engaging.
2. shutter operating means according to claim 1 is characterized in that,
Above-mentioned driving side intermittent gear is fixed on the driving side intermittent gear axle, can rotate with driving side intermittent gear axle,
Fixing motor limit switch cam on above-mentioned driving side intermittent gear axle,
Dispose a plurality of motor limit switches, these a plurality of motor limit switches engage with said motor limit switch cam, and output is used to stop the signal of the rotation of said motor according to the anglec of rotation of above-mentioned driving side intermittent gear axle.
3. shutter operating means according to claim 2 is characterized in that,
The said motor limit switch comprises:
The first motor limit switch is with " cut-out " state of circuit breaker and grounding opening-closing device output signal accordingly;
The second motor limit switch is with " connection " state of circuit breaker output signal accordingly; And
The 3rd motor limit switch is with " ground connection " state of above-mentioned grounding opening-closing device output signal accordingly.
4. shutter operating means according to claim 3 is characterized in that,
The above-mentioned first motor limit switch, the second motor limit switch and the 3rd motor limit switch dispose on the direction of above-mentioned driving side intermittent gear axle with interfixing side by side and.
5. according to each described shutter operating means in the claim 1～4, it is characterized in that,
Also have planetary gear, this planetary gear is used to make the rotational delay of above-mentioned driving shaft, and above-mentioned driving side intermittent gear axle is rotated driving.
6. according to each described shutter operating means in the claim 1～4, it is characterized in that also having:
The manual operation axle when said motor stops, can manually making above-mentioned driving shaft rotation;
Manual handle can be loaded and unloaded with respect to above-mentioned manual operation axle, is used for manually making above-mentioned manual operation axle rotation; And
Manual operation handle escapement, this engaging when keeping the engaging of above-mentioned manual operation axle and manual handle.
7. according to each described shutter operating means in the claim 1～4, it is characterized in that also having:
The manual operation axle when said motor stops, can manually making above-mentioned driving shaft rotation; And
Manual handle can be loaded and unloaded with respect to above-mentioned manual operation axle, is used for manually making above-mentioned manual operation axle rotation;
Said motor possesses motor drive shaft, and above-mentioned driving shaft is driven in rotation by above-mentioned manual operation axle or said motor axle via gear.
8. shutter operating means according to claim 6 is characterized in that also having:
Diverter switch is switched said motor; And
Gate, when above-mentioned manual operation axle separated with manual handle, this closing gate when gate is opened, stoped the switching of above-mentioned diverter switch to stop the engaging of above-mentioned manual operation axle and manual handle under rated condition.
9. according to each described shutter operating means in the claim 1～4, it is characterized in that,
Dispose at least one motor limit switch, this motor limit switch is according to the anglec of rotation of above-mentioned driving side intermittent gear axle, and output is used to stop the signal of the rotation of said motor,
Also possess circuit, this circuit constitutes, and possesses the brake resistance in parallel with above-mentioned supply power, and when the said motor limit switch moves, with said motor as generator to above-mentioned brake resistance streaming current, make motor produce brake torque.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP005066/2010 | 2010-01-13 | ||
| JP2010005066A JP5367594B2 (en) | 2010-01-13 | 2010-01-13 | Switch operating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102129922A true CN102129922A (en) | 2011-07-20 |
| CN102129922B CN102129922B (en) | 2013-11-06 |
Family
ID=43877175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110006755 Active CN102129922B (en) | 2010-01-13 | 2011-01-13 | Switch operating device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2346055B1 (en) |
| JP (1) | JP5367594B2 (en) |
| CN (1) | CN102129922B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800505A (en) * | 2012-08-13 | 2012-11-28 | 上海精诚工控电子科技有限公司 | Electric operation mechanism of switch |
| CN103258669A (en) * | 2013-04-17 | 2013-08-21 | 中国西电电气股份有限公司 | Open position blocking device of breaker |
| CN103681026A (en) * | 2012-09-20 | 2014-03-26 | 株式会社安川电机 | Switch |
| CN105103253A (en) * | 2013-03-26 | 2015-11-25 | 阿尔斯通技术有限公司 | Electric switching system |
| CN106415961A (en) * | 2014-01-21 | 2017-02-15 | 三菱电机株式会社 | Gas-insulated switchgear and switch |
| CN108352269A (en) * | 2015-11-09 | 2018-07-31 | 三菱电机株式会社 | The operating device of breaker |
| CN110364386A (en) * | 2018-04-10 | 2019-10-22 | 轨道动力系统有限责任公司 | High pressure or medium voltage switchgear equipment |
| CN112204692A (en) * | 2018-06-18 | 2021-01-08 | 株式会社东芝 | Operating device for circuit breaker |
| CN114050062A (en) * | 2021-11-03 | 2022-02-15 | 嘉兴信保展机电科技有限公司 | Operator for switch |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE102012008200B4 (en) * | 2011-07-25 | 2023-02-16 | Hitachi Energy Switzerland Ag | Drive unit for a switching device |
| JP5501312B2 (en) * | 2011-08-29 | 2014-05-21 | 株式会社日立製作所 | Switch and switchgear |
| KR101291791B1 (en) * | 2011-09-05 | 2013-07-31 | 현대중공업 주식회사 | Driver of gas insulated switchgear |
| CN102522233B (en) * | 2011-12-27 | 2014-08-13 | 北京双杰电气股份有限公司 | Double cam spring device |
| KR101604278B1 (en) | 2011-12-30 | 2016-03-18 | 엘에스산전 주식회사 | 3 position actuator for switchgear |
| CN103426660A (en) * | 2012-05-15 | 2013-12-04 | 苏州工业园区新宏博通讯科技有限公司 | Automatic on-off brake device |
| EP2728600B1 (en) * | 2012-10-31 | 2018-02-21 | ABB Schweiz AG | Switch assembly for a medium or high voltage switchgear, comprising a three-position switch |
| CN103208397B (en) * | 2013-05-06 | 2014-12-03 | 浙江华仪电器科技有限公司 | Three-station operating mechanism for vacuum disconnecting switch |
| GB2521135B (en) * | 2013-12-10 | 2017-01-18 | Tavrida Electric Holding Ag | Switching apparatus for electrical power systems |
| FR3025049A1 (en) * | 2014-08-20 | 2016-02-26 | Alstom Technology Ltd | CONTROL SYSTEM FOR ELECTRICAL EQUIPMENT WITH SELECTIVE COUPLING |
| CN105679591B (en) * | 2016-02-29 | 2017-09-01 | 上海天灵开关厂有限公司 | Switch cubicle, tri-station isolating switch mechanism and its anti-error point of grounding interlocking device |
| CN106531537B (en) * | 2016-11-25 | 2018-08-10 | 江苏省如高高压电器有限公司 | A kind of isolation circuit breakers close locking device |
| CN106783285B (en) * | 2016-11-25 | 2019-01-01 | 江苏省如高高压电器有限公司 | A kind of isolation circuit breakers steerable system |
| DE102017105688A1 (en) * | 2017-03-16 | 2018-09-20 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Rotary switch for electronic parking brake device of a vehicle, in particular a utility vehicle |
| KR101992664B1 (en) * | 2017-10-25 | 2019-06-25 | 샤든코리아(주) | Recloser for electric power distribution line |
| CN108305813B (en) * | 2018-03-07 | 2024-04-26 | 余姚市华宇电器有限公司 | Single-motor three-station mechanism for outputting multiple rotation angles |
| CN108511256A (en) * | 2018-05-14 | 2018-09-07 | 河南森源电气股份有限公司 | Earthing switch interlocking mechanism and switchgear |
| CN108615645B (en) * | 2018-07-16 | 2023-08-01 | 中国能源工程（海门）昌泰电气有限公司 | Direct-acting type three-station isolation operating mechanism positioned by special-shaped shaft and control method thereof |
| CN109510424A (en) * | 2018-12-17 | 2019-03-22 | 煤科集团沈阳研究院有限公司 | Coal mine disconnecting switch disjunction test direct-drive motor mechanism and its control system |
| CN112509848B (en) * | 2020-11-27 | 2023-11-17 | 河南平高通用电气有限公司 | Electric operating device of grounding switch for ring main unit test |
| CN112802705B (en) * | 2021-01-28 | 2023-02-28 | 杭州施江银电气成套有限公司 | Earthing switch operation axle construction |
| CN112786339B (en) * | 2021-02-02 | 2022-07-12 | 北京双杰电气股份有限公司 | Operating device is kept apart to disc spring |
| CN113871225B (en) * | 2021-08-20 | 2024-04-09 | 平高集团有限公司 | Three-station operating mechanism and switch cabinet |
| CN114613638B (en) * | 2022-03-22 | 2024-01-16 | 宁波剑润机电有限公司 | Three-station position signal switching device |
| JP7154467B1 (en) * | 2022-04-04 | 2022-10-17 | 三菱電機株式会社 | switchgear |
| CN116313579B (en) * | 2023-05-26 | 2023-08-04 | 沈阳华德海泰电器有限公司 | Travel switch driving device for gas-insulated metal-enclosed switchgear |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002152922A (en) * | 2000-11-08 | 2002-05-24 | Toshiba Corp | Operating mechanism for switch |
| JP2002150897A (en) * | 2000-11-15 | 2002-05-24 | Mitsubishi Electric Corp | Operation equipment for switch |
| CN1396612A (en) * | 2001-07-06 | 2003-02-12 | Tkd株式会社 | Operator for switch |
| JP2003208837A (en) * | 2002-01-10 | 2003-07-25 | Toshiba Corp | Operating device of switch |
| CN1802721A (en) * | 2003-07-31 | 2006-07-12 | Tkd株式会社 | Operating unit for switchgear |
| EP1901323A1 (en) * | 2006-09-14 | 2008-03-19 | Areva T&D SA | Earthing switch mechanism |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61189546U (en) * | 1985-05-17 | 1986-11-26 | ||
| JP2570014B2 (en) | 1991-08-26 | 1997-01-08 | 三菱電機株式会社 | Three-position switch operation mechanism |
| JP4303895B2 (en) * | 2001-03-30 | 2009-07-29 | 株式会社東芝 | Three position switch operation mechanism |
| JP4973357B2 (en) * | 2007-07-19 | 2012-07-11 | 三菱電機株式会社 | Three-position switch operating device |
-
2010
- 2010-01-13 JP JP2010005066A patent/JP5367594B2/en active Active
-
2011
- 2011-01-12 EP EP20110150702 patent/EP2346055B1/en not_active Not-in-force
- 2011-01-13 CN CN 201110006755 patent/CN102129922B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002152922A (en) * | 2000-11-08 | 2002-05-24 | Toshiba Corp | Operating mechanism for switch |
| JP2002150897A (en) * | 2000-11-15 | 2002-05-24 | Mitsubishi Electric Corp | Operation equipment for switch |
| CN1396612A (en) * | 2001-07-06 | 2003-02-12 | Tkd株式会社 | Operator for switch |
| JP2003208837A (en) * | 2002-01-10 | 2003-07-25 | Toshiba Corp | Operating device of switch |
| CN1802721A (en) * | 2003-07-31 | 2006-07-12 | Tkd株式会社 | Operating unit for switchgear |
| EP1901323A1 (en) * | 2006-09-14 | 2008-03-19 | Areva T&D SA | Earthing switch mechanism |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800505A (en) * | 2012-08-13 | 2012-11-28 | 上海精诚工控电子科技有限公司 | Electric operation mechanism of switch |
| CN102800505B (en) * | 2012-08-13 | 2015-05-20 | 上海精诚工控电子科技有限公司 | Electric operation mechanism of switch |
| CN103681026A (en) * | 2012-09-20 | 2014-03-26 | 株式会社安川电机 | Switch |
| CN103681026B (en) * | 2012-09-20 | 2015-12-02 | 株式会社安川电机 | Switch |
| CN105103253A (en) * | 2013-03-26 | 2015-11-25 | 阿尔斯通技术有限公司 | Electric switching system |
| CN103258669A (en) * | 2013-04-17 | 2013-08-21 | 中国西电电气股份有限公司 | Open position blocking device of breaker |
| CN106415961A (en) * | 2014-01-21 | 2017-02-15 | 三菱电机株式会社 | Gas-insulated switchgear and switch |
| CN106415961B (en) * | 2014-01-21 | 2018-09-14 | 三菱电机株式会社 | Gas-insulated switchgear device and derailing switch |
| CN108352269A (en) * | 2015-11-09 | 2018-07-31 | 三菱电机株式会社 | The operating device of breaker |
| CN110364386A (en) * | 2018-04-10 | 2019-10-22 | 轨道动力系统有限责任公司 | High pressure or medium voltage switchgear equipment |
| CN112204692A (en) * | 2018-06-18 | 2021-01-08 | 株式会社东芝 | Operating device for circuit breaker |
| CN112204692B (en) * | 2018-06-18 | 2023-11-10 | 株式会社东芝 | Operating device for circuit breaker |
| CN114050062A (en) * | 2021-11-03 | 2022-02-15 | 嘉兴信保展机电科技有限公司 | Operator for switch |
| CN114050062B (en) * | 2021-11-03 | 2023-08-18 | 嘉兴信保展机电科技有限公司 | Manipulator for shutter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102129922B (en) | 2013-11-06 |
| JP5367594B2 (en) | 2013-12-11 |
| EP2346055A1 (en) | 2011-07-20 |
| JP2011146199A (en) | 2011-07-28 |
| EP2346055B1 (en) | 2015-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102129922B (en) | Switch operating device | |
| CN101714472B (en) | Electrical operating mechanism for switchgear | |
| JP5070178B2 (en) | Switchgear | |
| CN102354627B (en) | Three-working-position electric operation mechanism for switching device | |
| CN103985591B (en) | A kind of tri-station isolating switch | |
| EP2610883B1 (en) | Three-position actuator for switchgear | |
| CN103337405A (en) | A three-position mechanism with reclosing and grounding closing functions and an operation method thereof | |
| CN201187617Y (en) | Valve electric device | |
| KR100703038B1 (en) | Operation equipment for gas-insulated switch-gear | |
| JP4723900B2 (en) | Electric operation device for switch | |
| CN105070578A (en) | Double-operation-shaft three-position mechanism and interlocking operation method thereof | |
| CN105023778A (en) | Transmission device for a compact circuit breaker for the transfer of torque and actuating means of a compact circuit breaker | |
| KR200412844Y1 (en) | Operation equipment for gas-insulated switch-gear | |
| KR101283648B1 (en) | Gas insulated 3 position switch mechanism | |
| CN104332349B (en) | Intelligent pair of ground connection high voltage isolating switch operating mechanism case | |
| CN109148206B (en) | A kind of dual operation hole tri-station isolating switch mechanism and its interlock | |
| JP2009026578A (en) | Device for operating three-position switch | |
| CN102420058A (en) | Operating mechanism of ATSE (Automatic Transfer Switching Equipment) | |
| CN202167362U (en) | Actuating mechanism for dual-power automatic transfer switch | |
| CN207282361U (en) | A kind of linkage mechanism, operating mechanism and switchgear | |
| CN101826404A (en) | Three-gear switching mechanism of transfer switch device | |
| CN108022790A (en) | A kind of disconnecting switch | |
| CN219669037U (en) | Control device for bent scraper feeding gate for discharging bulk grain bin in port | |
| CN100355004C (en) | Operating unit for knife switch | |
| CN107403703B (en) | Switch cabinet and operating mechanism and linkage mechanism thereof |
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 |