CN102129922B - Switch operating device - Google Patents
Switch operating device Download PDFInfo
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- CN102129922B CN102129922B CN 201110006755 CN201110006755A CN102129922B CN 102129922 B CN102129922 B CN 102129922B CN 201110006755 CN201110006755 CN 201110006755 CN 201110006755 A CN201110006755 A CN 201110006755A CN 102129922 B CN102129922 B CN 102129922B
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- intermittent gear
- rotation
- shutter
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- 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
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- 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
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- 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
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- 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
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Gas-Insulated Switchgears (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (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 operating device for shutter, this operating device for shutter is used for making 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 uses in converting equipment, more 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 uses the operation devcie for three-position opener that two shutters of circuit breaker, grounding opening-closing device etc. is carried out opening and closing operations, can control these three main contacts positions of " connection ", " cut-out ", " ground connection " by an operating means.
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 carried out to operating angle or the actuating quantity of circuit breaker, grounding opening-closing device the operating means that changes.
Fig. 8 shows the structure of the operating device for shutter of the control that can carry out three positions of using in the prior art.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 the roller follower (roller follower) 38 can be from catcher 40a or 40b action.
Carrying out in electrically operated situation, the actuating force of motor (motor) 5 is input to operating axis 1b, be delivered to gear 3 from gear 4 via chain (chain) 43, make driving shaft 6 rotations, make 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 the main contacts in gas rotate to the direction of rotation that instruction is arranged.Thus, the drawer at movable side contact is inserted in circuit breaker with fixed contact or grounding opening-closing device fixed contact, can switches on thereby become.
Make with the main shaft 11 of key and 36 combinations of slave end colyliform gear plate 37 rotations that bond is closed on coaxial, and be arranged to be fixed on roller follower 38 on plate 37 and be connected on block 39 and can not move more than suitable angle.In addition, limit cam (limit cam) 42 is connected on difference independent fixing limit switch 14a, 14b, 15a, 15b, cuts off the power supply of motor 5, thus tenth skill.
Actuating force is transmitted and moved the samely when also operating with " connection " during " cut-out " operation.But when " cut-out " operated, as the mechanism lock that is positioned at " cut-out " position, it is upper locked that roller follower 38 is connected to catcher 40a, 40b, can not move more than suitable angle.
In the situation that manual, 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 driving shaft 6 and electric operating.In addition, be provided with separately circuit breaker with manual operation axle 1a and grounding opening-closing device these two manual operation axles of manual operation axle 1b, just can not carry out next action if constitute the words of first not extracting manual handle 29.For example, consist of interlocking if close the gate 21a or the 21b that open, 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 the operating angle that makes circuit breaker, grounding opening-closing device or actuating quantity roughly the same three positions, (for example use in addition the geosynclinal convex wheel shaft, 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, in foregoing existing operating device for shutter, have following problem.Namely, the existing control that can carry out three positions, in circuit breaker and grounding opening-closing device operating angle or the different operating device for shutter of actuating quantity, transmission efficiency is relatively poor, so correspondingly the output of motor and outer deformation are large, perhaps this operating device for shutter consists of by catcher and catcher coil in the mode that the maintenance of " cut-out " position can be removed, complex structure.In addition, due to the motor limit switch as " connection " state of circuit breaker, grounding opening-closing device with and " cut-outs " state with arranging 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 object of the invention is to, even provide a kind of in the situation that circuit breaker and grounding opening-closing device have different operating angles or actuating quantity, also can easily carry out the operating device for shutter of the control of three positions.
To achieve these goals, operating device for shutter of the present invention, be used for the contact of shutter is moved, 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 operating device for shutter comprises: motor, can carry out positive rotation and negative rotation turns 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 above-mentioned slave end intermittent gear, rotates together with above-mentioned slave end intermittent gear and drives the contact of above-mentioned shutter; The circuit breaker locking cam is fixed on above-mentioned main shaft and rotates together with this main shaft; The grounding opening-closing device locking cam is fixed on above-mentioned main shaft and rotates together with this main shaft; The circuit breaker stop pin can engage with locking cam or break 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 with respect to above-mentioned grounding opening-closing device with locking cam engaging or disengaging, can stop the rotation of the prescribed limit of above-mentioned main shaft when engaging.
According to the present invention, even operating angle or the different shutter of actuating quantity in circuit breaker and grounding opening-closing device also can easily carry out the control of three positions.
Description of drawings
Fig. 1 is the stereogram that an execution mode of operating device for shutter of the present invention is shown.
Fig. 2 is to the driving side intermittent gear under " cut-out " state of the operating device for shutter of Fig. 1 and the slave end intermittent gear figure from the end on observation of these gears.
Fig. 3 is to the driving side intermittent gear under " ground connection " state of the operating device for shutter of Fig. 1 and the slave end intermittent gear figure from the end on observation of these gears.
Fig. 4 is with the driving side intermittent gear under " connection " state of the operating device for shutter of Fig. 1 and the slave end intermittent gear figure from the end on observation of these gears.
Fig. 5 illustrates the circuit interrupter grounding shutter of operating device for shutter of Fig. 1 with the front view of the state of the gate under the state of gate closure and diverter switch etc.
Fig. 6 is the front view that the state of gate under the state that the circuit interrupter grounding shutter of the operating device for shutter of Fig. 5 opens with gate and diverter switch etc. is shown.
Fig. 7 is the figure of sequential of control circuit of motor that the operating device for shutter of Fig. 1 is shown.
Fig. 8 is the stereogram that an example of existing operating device for shutter is shown.
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 ... negative rotation conversion relay contact
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 section
57,58 ... arc sections
60 ... arc sections
61 ... concave surface section
62,63 ... tooth section
64,65 ... concave surface section
321,322 ... the positive rotation relay contact
331,332 ... negative rotation conversion relay contact
Embodiment
Below, with reference to accompanying drawing, an execution mode of operating device for shutter of the present invention is described.At this, at the Reference numeral identical with the same or similar part mark of prior art shown in Figure 8, and omit repeat specification.
Fig. 1 is the stereogram that an execution mode of operating device for shutter of the present invention is shown.
The rotating shaft of manual operation axle 1 and motor output shaft 50 are configured on 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 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 slowed down 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 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 rotations together with driving side intermittent gear axle 51.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 the opposed position of 3 limit switch cam 12a, 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 limit switch mounting panel 16 in the mode of mutual maintenance specified gap and adjacent arrangement.
Configure abreast main shaft 11 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 regular hexagon, is located at orthohexagonal through hole on 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 locking cam 20a and grounding opening-closing device with the opposed position of locking cam 20b peripheral part separately with circuit breaker, dispose circuit breaker stop pin 52a, grounding opening-closing device stop pin 52b.Stop pin 52a, 52b are back and forth driven with holding (out) coil 19b point-blank by circuit breaker holding (out) coil 19a, grounding opening-closing device respectively.
If holding (out) coil 19a, 19b are energized and move towards the corresponding locking cam 20a of separately stop pin 52a, 52b, 20b, 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 equipment operating in the time of can be to manual operation switches.
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, can not be engaged to manual handle 29 on 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 is that Fig. 2 illustrates " cut-out " state to the driving side intermittent gear 8 of the operating device for shutter of Fig. 1 and slave end intermittent gear 10 figure from the end on observation of these gears, and Fig. 3 illustrates " ground connection " state, and Fig. 4 illustrates " connection " state.On driving side intermittent gear 8, form the first tooth section 55 and the second tooth section 56 in the position that mutually roughly is the diagonal angle, and be formed with the first arc sections 57 and the second arc sections 58 that connects between these teeth sections.In the central authorities of the first arc sections 57, be formed with the block 9 as jut.The number of teeth of the first tooth section 55 and the second tooth section 56 does not need identical, and for example, the number of teeth of the gear ratio of the first tooth section 55 the second tooth section 56 is few.
Slave end intermittent gear 10 has arc sections 60 around it, has the first concave surface section 61 at the diagonal position of arc sections 60.Length Ratio second arc sections 58 of concave surface section 61 is short.Across this concave surface section 61 respectively with the 3rd tooth section 62 of the first tooth section 55 of driving side intermittent gear 8 and 56 engagements of the second tooth section and the 4th tooth section 63, be formed on slave end intermittent gear 10.And, form the second concave surface section 64 between the 3rd tooth section 62 of slave end intermittent gear 10 and arc sections 60, be formed with the 3rd concave surface section 65 between the 4th tooth section 63 and arc sections 60.
Under " cut-out " state shown in Figure 2, the concave surface section 61 of the second arc sections 58 of driving side intermittent gear 8 and slave end intermittent gear 10 is opposite.At this moment, no matter driving side intermittent gear 8, can not engage with slave end intermittent gear 10, thereby slave end intermittent gear 10 does not rotate during the second arc sections 58 is opposed with slave end intermittent gear 10 to any direction rotation.
If driving side intermittent gear 8 rotates to clockwise direction from the state of Fig. 2, the the first tooth section 55 and the slave end intermittent gear 10 that become driving side intermittent gear 8 are opposite, the 3rd tooth section 62 engagements of the first tooth section 55 of driving side intermittent gear 8 and slave end intermittent gear 10, slave end intermittent gear 10 is to counterclockwise rotation.Afterwards, if driving side intermittent gear 8 further rotates to clockwise direction, the first arc sections 57 is opposite with the arc sections 60 of slave end intermittent gear 10, so it is not driven that slave end intermittent gear 10 becomes, if and driving side intermittent gear 8 further rotates to clockwise direction, 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 is from the state of Fig. 3 to counterclockwise rotation, 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 the second tooth section 56 and the slave end intermittent gear 10 that become driving side intermittent gear 8 are opposite, the 4th tooth section 63 engagements of the second tooth section 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 counterclockwise rotation, the first arc sections 57 is opposite 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 counterclockwise rotation, 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 of operating means shown in Figure 1 described.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, actuating force is delivered to slave end intermittent gear 10, driving main shaft 11.Thus, make limit switch cam 12a, the 12b, 13 rotations that engage with main shaft 11, 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 surpassed distance (overrun) that mechanism lock causes to prevent continuous action in " cut-out " position, and if the electrical interlock between other equipment be false, mechanism lock coil 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, in the situation that and the establishment of the electrical interlock between equipment, can move continuously.
In addition, in prior art, through intermittence section always surpassed distance arrive the gear part of opposite side, the gear engaging piece 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 is all that butt is carried out at position beyond tooth top at intermittent gear.
When manual operation, open the sluices 21, manual handle 29 is fitted on manual operation axle 1 is rotated operation, cam 25 rotations that engage with driving shaft 6, connecting rod 26 is pulled spring 27 along the groove that cam 25 has 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 anti-locking mechanism of the diverter switch misoperation of the operating device for shutter of present embodiment is described.At this, Fig. 5 illustrates the circuit interrupter grounding shutter of operating device for shutter of Fig. 1 with the front view of the state of the gate under the state of gate closure and diverter switch etc.Fig. 6 is the front view that the state of gate under the state that the circuit interrupter grounding shutter of the operating device for shutter of Fig. 5 opens with gate and diverter switch etc. is shown.
Structure shown here is to have the structure of 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 satisfying interlocking condition.Usually, manual operation axle 1 crested plate 24 covers and cannot see, misoperation prevents from can not being arranged on the mode that diverter switch 18 operates on gate 21 when plate 22 from can make to be opened at gate 21 position that manual handle 29 inserts, 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, 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, in order to can not see from the front action of pin, and make operating personnel's hand touch less than.
And, utilize the misoperation that is arranged on gate 21 to prevent plate 22, make on which position in " connection ", " cut-out ", " ground connection " this three position to be all, as long as inserted manual handle 29, just can not carry out handover operation to diverter switch 18.
Then, with reference to Fig. 7, the control circuit of the motor 5 of the operating device for shutter of Fig. 1 is described.Fig. 7 is the figure of sequential of control circuit of motor that the operating device for shutter of Fig. 1 is shown.
This operating device for shutter is 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, connected side of the positive electrode power supply (PM) 30 via positive rotation with relay (relay) contact 321 at the side of the positive electrode of motor 5.Connected negative side power supply (NM) 31 at the side of the positive electrode of motor 5 via negative rotation conversion relay contact 331 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 negative rotation conversion relay contact 332 in parallel therewith.And the side of the positive electrode of motor 5 and negative side interconnect with relay contact 32b, negative rotation conversion relay contact 33b and brake resistance 34 via the positive rotation that mutually is connected in series.
At this, positive rotation with relay contact 321,322 and negative rotation conversion relay contact 331,332 be a contact of closure when the action.In addition, positive rotation is the b contact that disconnects when moving with relay contact 32b and negative rotation conversion relay contact 33b.
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, the terminal of side of the positive electrode power supply 30 applies " connection " operating voltage, is connected to a closing of contact of " connection " use relay 321 between side of the positive electrode power supply 30 and motor 5.In addition, be connected to from brake resistance 34 to " connection " negative side power supply 31 with the b contact disconnection of relay 32b, be connected to from motor 5 to " connection " negative side power supply 31 with a closing of contact of relay 322, consist of the circuit that carries out " connection " operation, carry out " connection " operation of motor direct rotational direction.
When completing " 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 arranged on main shaft 11, and " connection " uses the contact full recovery previous status of relay 321,322,32b.
Describe during then, to " cut-out " of circuit breaker operation.That is, if " cut-out " inputted from the outside operates commencing signal, the terminal of side of the positive electrode power supply 30 applies " cut-out " operating voltage, is connected to a closing of contact of " cut-out " use relay 332 between side of the positive electrode power supply 30 and motor 5.In addition, be connected to from brake resistance 34 to " cut-out " negative side power supply 31 with the b contact disconnection of relay 33b, be connected to from motor 5 to " cut-out " negative side power supply 31 with a closing of contact of relay 331, consist of the circuit that carries out " cut-out " operation, carry out " cut-out " operation of motor negative rotation veer.
" if cut-out " EO, " cut-out " end limit switch 15 is used the action interlock of cam 13 and cuts off electric current with the limit switch that is arranged on 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 " operate also identical, so description thereof is omitted.
As above explanation, according to present embodiment, in the situation that circuit breaker and grounding opening-closing device have 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 arranged on main shaft 11, can improve the reliability of " cut-out " locational lock function.In addition, owing to can carrying 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 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 configure the motor limit switch at slave end, in this case, due to machining tolerance and the assembling caused gap of tolerance (back lash) of parts, generation anglec of rotation gap on driven shaft, action slow down slow and the corresponding amount of this loss.Therefore, be difficult to high accuracy, the rotation of driven side shaft be stopped, stop in desirable position driven shaft and just must must set the time relay etc.But, according to present embodiment, by at drive shaft side configuration motor limit switch 14a, 14b, 15, can easily control stop position, can not set the time relay.
In addition, according to present embodiment, by the handle escapement is set in drive shaft side, can prevent misoperation, improve reliability.
And, according to present embodiment, by motor output shaft 50 and manual operation axle 1 are set respectively, can easily carry out the loading and unloading of motor 5, also can carry out manual operation when dismounting.
In addition, according to present embodiment, by use planetary gear 7 on reducing gear, can improve the transmission efficiency of actuating force, operating means can be designed to get small compact more.
In addition, according to present embodiment, utilize diverter switch 18 that a manual operation axle is switched in circuit breaker and grounding opening-closing device by constituting, can reduce number of components, compared with prior art, can make the operation devcie for three-position opener small compact.
In addition, in the situation that prior art as shown in Figure 8, have circuit breaker with and 2 manual operation axles using of grounding opening-closing device, when wanting other operates different from the equipment that is inserted with manual handle, need to 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, after the end of job arbitrarily, can carry out continuously next operation in the situation that inserting manual handle, the interlocking of gate is inoperative.If after manual handle has been inserted in " connection ", " ground connection " or " cut-out " position, first manual handle is turned to the centre position of avoiding the mechanism lock cam, diverter switch is made the selection different from content of operation continue to operate manual handle, might be operable to the equipment state different from manual working person's intention.
For example, if the connection completing place at grounding opening-closing device, make diverter switch be connected with the circuit breaker side and carry out the rupturing operation of grounding opening-closing device, owing to not working at " cut-out " position locking mechanism, if so be rotated further manual handle can operate " connection " completing place of 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 is also same.
And in the present embodiment, must play a role at " cut-out " position mechanism lock, can prevent misoperation.
Claims (8)
1. an operating device for shutter, be used for the contact of shutter is moved, 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 operating device for shutter comprises:
Motor can carry out positive rotation and negative rotation turns 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 above-mentioned slave end intermittent gear, rotates together with above-mentioned slave end intermittent gear and drives the contact of above-mentioned shutter;
The circuit breaker locking cam is fixed on above-mentioned main shaft and rotates together with this main shaft;
The grounding opening-closing device locking cam is fixed on above-mentioned main shaft and rotates together with this main shaft;
The circuit breaker stop pin can engage with locking cam or break 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 with respect to above-mentioned grounding opening-closing device with locking cam engaging or disengaging, can stop the rotation of the prescribed limit of above-mentioned main shaft when engaging;
Above-mentioned driving side intermittent gear is fixed on driving side intermittent gear axle, can rotate together 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 for stopping the signal of the rotation of said motor according to the anglec of rotation of above-mentioned driving side intermittent gear axle.
2. operating device for shutter according to claim 1, 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.
3. operating device for shutter according to claim 2, is characterized in that,
Above-mentioned the first motor limit switch, the second motor limit switch and the 3rd motor limit switch configure on the direction of above-mentioned driving side intermittent gear axle with interfixing side by side and.
4. the described operating device for shutter of any one according to claim 1～3, is characterized in that,
Also have planetary gear, this planetary gear is used for making the rotation of above-mentioned driving shaft to slow down, and above-mentioned driving side intermittent gear axle is rotated driving.
5. the described operating device for shutter of any one according to claim 1～3 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.
6. the described operating device for shutter of any one according to claim 1～3 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.
7. operating device for shutter according to claim 5, is characterized in that, also has:
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.
8. the described operating device for shutter of any one according to claim 1～3, is characterized in that,
Dispose at least one motor limit switch, this motor limit switch is exported the signal for the rotation that stops said motor according to the anglec of rotation of above-mentioned driving side intermittent gear axle,
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 |
|---|---|---|---|
| JP2010005066A JP5367594B2 (en) | 2010-01-13 | 2010-01-13 | Switch operating device |
| JP005066/2010 | 2010-01-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102129922A CN102129922A (en) | 2011-07-20 |
| CN102129922B true CN102129922B (en) | 2013-11-06 |
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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) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102129922A (en) | 2011-07-20 |
| EP2346055B1 (en) | 2015-02-25 |
| JP5367594B2 (en) | 2013-12-11 |
| JP2011146199A (en) | 2011-07-28 |
| EP2346055A1 (en) | 2011-07-20 |
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