CN106409600A - Mechanical emergency starting apparatus for start-delta voltage-reduction starting - Google Patents
Mechanical emergency starting apparatus for start-delta voltage-reduction starting Download PDFInfo
- Publication number
- CN106409600A CN106409600A CN201611124743.5A CN201611124743A CN106409600A CN 106409600 A CN106409600 A CN 106409600A CN 201611124743 A CN201611124743 A CN 201611124743A CN 106409600 A CN106409600 A CN 106409600A
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- China
- Prior art keywords
- operating mechanism
- manual
- combined floodgate
- closing
- armature
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H2033/6667—Details concerning lever type driving rod arrangements
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- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to a mechanical emergency starting apparatus for start-delta voltage-reduction starting. The apparatus is composed of an insulation isolating frame, a rear metal sealing plate, two sets of electromagnetic control mechanisms, a manual operating mechanism and two sets of vacuum switch tube parts. Each electromagnetic control mechanism set includes a closing holding buckle plate, a driving connecting lever, a closing armature, a closing coil, and a closing spring; a long pull rod passes through a straight slot formed in the rear metal sealing plate and then connects a counterbore formed in the closing armature; and a thread part formed at the other end of the long pull rod is connected with a U-shaped linkage block arranged on a linkage rod of the manual operating mechanism movably by a positioning pin. According to the invention, two alternating-current vacuum contactors can be driven synchronously to realize mechanical emergency starting. The provided apparatus meets regulations in the mandatory article 11.0.12 in the national standard GB 50974-2014 ''Technical Specifications of Fire-fighting Water Supply and Fire Hydrant System'' implemented on October 1st, 2014.
Description
Technical field
The present invention relates to a kind of mechanical emergency starter of star delta reduced-voltage starting, it is through tying to mechanical part
The recalculating and design it is adaptable in the equipment of star trigonometric expression reduced-voltage starting of structure.
Background technology
Its superior performance of vacuum A. C. contactor exists：Colliery, metallurgy, electric power, weaving, etc. various industries obtain reality
Extensive application in border, its superior performance：No arc light, vacuum is closed, dust-proof, explosion-proof, insulating coefficient, and the coefficient of stability is remote
Exceed well over common A.C. contactor.AC vacuum contactor is by insulating every electric framework, metab, transmission crank arm, electromagnetic system
The composition such as system and vacuum switch, when solenoid passes through nominal control volatge, armature drives connecting lever to rotate, and makes in vacuum switch
Main contact is connected, and after solenoid power-off, due to tripping spring effect, makes main contact disjunction.Vacuum A. C. contactor is applied to：
Exchange 50Hz, rated voltage：Below 1140V, the feeding network of rated current 63A to 800A, control voltage：Below AC220V supplies
Remote connection and disjunction circuit, and used by frequent starting and stopping ac motor.But, whether vacuum communication contact
During device or common A.C. contactor use at the scene, often occur that control loop breaks down and cannot drive catalyst
Coil or coil fault itself cannot normally be closed a floodgate, and such as fire protection sector rescue and relief work needs to force to close a floodgate to run；Otherwise, will
Great property loss is caused even to bring the serious consequence threatening life safety.So the country that on October 1st, 2014 implements
Standard：BG 50974-2014《Fire water-supply and hydrant system technical specification》Strong article of regulation of 11.0.12：Fire pump control
Cabinet processed should arrange mechanical emergency and open pumping function.This interpretation of section is：As long as power supply is normal, no matter how control circuit can force
Start fire water supply equipment.
On 02 24th, 2016, Chinese invention patent application publication No. CN105355505A disclosed and is proposed by our company
A kind of can mechanical emergency action vacuum A. C. contactor；By shrouding, electromagnetic operating mechanism, the handss after electric framework, metal that insulate
Pneumatic operating mechanism and vacuum switch tube part composition, electromagnetic operating mechanism have combined floodgate keep buckle, transmission crank arm, rank of closing a floodgate
Ferrum, closing coil and tripping spring；Keep to the side position, to have counter sink combined floodgate armature is longitudinally central, with this countersunk head hole site
One through hole is also had on shrouding after the metal facing；One long draw passes through the through hole after metal on shrouding, long draw cap portion
Divide the counter sink on connection combined floodgate armature, the threaded section of long draw is connected with " L " shape pull hook of manual-operating mechanism gangbar.
Although this technical scheme can when secondary control loop breaks down, or vacuum switch itself solenoid damage when,
Fire-fighting pump-feeding and fire hydrant can be started by manual-operated emergent.But the setting of " L " shape pull hook, installation difficulty, are easily deformed hair fastener.
Particularly " L " shape pull hook concordance is poor, can produce for the conventional star triangle power frequency reduced-voltage starting of current driving force motor equipment
Hair growth promoting is trembled；Conventional star triangle power frequency reduced-voltage starting be using a kind of most commonly used, mode that stability is best；Due to star
Triangle start needs to draw six roots of sensation power line on motor：U1, V1, W1, U2, V2, W2 A.C. contactor composition opens from star
Move a process of triangle operation, so have to two AC vacuums of forcibly action connecing when mechanical emergency starts
Tentaculum, enables six roots of sensation power line direct-electrifying so that terminal forced motor is run；It is badly in need of a kind of good mechanical emergency of concordance to open
Dynamic device.
Content of the invention
It is an object of the invention to provide a kind of mechanical emergency starter of star delta reduced-voltage starting, can synchronously drive two
Platform AC vacuum contactor, improves to its armature part and manual-operating mechanism inlet wire, realizes mechanical emergency and starts.When positive reason
Under condition, two AC vacuum contactor isolated operations form star-delta reduced-voltage starting；When control loop fault cannot normally be run
When, and achievable mechanical emergency startup function；It is exactly in last critical moment, control loop or catalyst adhesive line itself
Circle fault cannot start and now main power source intact, two AC vacuums of adhesive can be forced by mechanical emergency starter
Catalyst directly initiates terminal motor, and this is undoubtedly in the pattern based on conventional control circuit, and substantially increase system can
By property, solve the conforming technical problem of mechanical emergency starter simultaneously.
The purpose of the present invention is achieved through the following technical solutions：
A kind of mechanical emergency starter of star delta reduced-voltage starting, by insulation shrouding, two sets of electromagnetism controls after electric framework, metal
Mechanism processed, manual-operating mechanism and two sets of vacuum switch tube parts composition, often having in set electromagnetic control structure combined floodgate keep buckle,
Transmission crank arm, combined floodgate armature, closing coil and tripping spring；Wherein, the flex point of transmission crank arm is arranged in combined floodgate rotating shaft, transmission
One arm of connecting lever is combined floodgate armature, and press tripping spring at arm end, and another arm connects the moving contact of vacuum switch duct member；Closing a floodgate
Armature is longitudinally central to keep to the side position, to have counter sink, corresponding on shrouding position after the metal corresponding to this countersunk head hole site
There is a groove；Groove on one long draw shrouding through after corresponding metal, the part that caps of long draw connects on combined floodgate armature
Counter sink, the silking part of long draw another end passes through alignment pin " u "-shaped linkage block corresponding with manual-operating mechanism gangbar
It is flexibly connected；The deferent segment of described manual-operating mechanism gangbar is square bar, and two ends are in round bar shape；Described " u "-shaped linkage
Block has two pieces, and every piece of bottom correspondence is welded in the plane of manual-operating mechanism gangbar square bar, the centre bit on top both sides
Put and open pin hole respectively；Described alignment pin is in that cylinder two ends are held in the pin-and-hole injecting " u "-shaped linkage block both sides respectively；Fixed
The middle part of position pin also has transverse holes, makes the silking of one of above-mentioned long draw partially pass through this transverse holes, and has two regulations
Nut check.
Described manual-operating mechanism closes/fast separation structure soon using spring energy-storage：Manual-operating mechanism be close a floodgate/point
In lock action, Automatic-drawing spring carries out instantaneous energy storage.
Its innovative point of the present invention is：When there is control circuit and breaking down, Electromagnetic Control mechanism cannot feed motion；
Now, operator when pulling manual-operating mechanism, gangbar rotates, and the " u "-shaped linkage block in gangbar led by alignment pin
Draw long draw and drive combined floodgate armature, combined floodgate armature overcomes the counteracting force of tripping spring to rotate counterclockwise along combined floodgate rotating shaft rapidly,
Transmission crank arm promotes moves on vacuum switch tube moving contact, is in close contact with static contact, makes vacuum tube be in closing position, mandatory
By two AC vacuum contactor contact adhesives, sleeve mechanism is maintained at "on" position, and making process terminates.
The present invention and prior art contrast：
1. electromagnetism combined floodgate/separating brake and mechanical combined floodgate/separating brake can be realized；It is good that mechanical emergency starts concordance；
2. the manual-operating mechanism of the present invention adopts conjunction/wink in energy-storage type wink separation structure, and this joystick can only move toward a direction
Dynamic-from open position to final run location；If handle travel is not also to before "on" position, now operator's release lever,
This handle just automatically returns to open position.Meet the standard GB/T 50974-2014 of on October 1st, 2014 enforcement《Disappear
Anti- feedwater and hydrant system technical specification》Strong article of regulation of 11.0.12；
3. machinery close/point the main contact of two AC vacuum contactors and auxiliary contact adhesive are driven by internal gangbar simultaneously
With disjunction, after stroke adjustment is intact, whole course of action can accomplish Complete Synchronization；
4. the present invention has machine and closes/electric point function, and after machinery closes a floodgate operation, during separating brake in order that operate more convenient,
In hgher efficiency, manual-operating mechanism increased electromagnetic trip part, this part is directly powered using AC220V；When needs stop
During machine, operator presses the whole switching-on mechanism of stop botton and just can directly separating brake thread off, if cannot execute for some reason,
Can hand-operated forced separating brake；This electromagnetic trip part also acts as a protective effect in the controls, and load motor is detected
When having the lethal condition such as short circuit, electromagnetism unhook component actuation is so that operator cannot force starting equipment；
5. present invention electricity closes and closes better than machine；When operator's operation machinery meets an urgent need handle, the position stroke of this handle will arrive conjunction
After lock self-locking position, before contact will close a floodgate；If now the coil of AC vacuum contactor will be or intact
The preferential action of this critical point, which increases the synchronicity of combined floodgate, and the magnetic attraction effect due to solenoid decreases
The output torque of operating mechanism is so that whole system is more stable, reliable；
6. applicable situation of the present invention：It is suitable for and GB new standard：GB 50974 - 2014《Fire water-supply and hydrant system skill
Art specification》Strong article of 11.0.12：Firefighting Pump Control cabinet should arrange mechanical emergency and open pump installation（In the case of power supply is normal
The manual starting pump motor by force of energy）.When secondary control loop breaks down, or vacuum switch electromagnetism adhesive line itself
When circle damages, fire-fighting pump-feeding and fire hydrant can be started with manual-operated emergent.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the combined floodgate armature schematic diagram in Fig. 1.
Fig. 3 is shrouding schematic diagram after metal in Fig. 1.
Fig. 4 is the long draw schematic diagram in Fig. 1.
Fig. 5 is the schematic diagram of gangbar.
Fig. 6 is the schematic diagram of alignment pin.
Fig. 7 is the " u "-shaped linkage block schematic diagram in Fig. 1.
In figure：1 insulation is every electric framework；Shrouding after 2 metals；3 vacuum switch duct members；4 transmission crank arm；5 combined floodgate armature；6
Closing coil；7 tripping springs；8 combined floodgate rotating shafts；9 adjusting nuts；10 long draws；11 " u "-shaped linkage blocks；12 manual-operating mechanisms
Gangbar；13 alignment pins；14 long draws cap part；15 counter sinks；16 pin-and-holes；17 grooves.
Specific embodiment
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
A kind of mechanical emergency starter of star delta reduced-voltage starting, by 2, two sets of shrouding after electric framework 1, metal that insulate
Electromagnetic Control mechanism, manual-operating mechanism and two sets of vacuum switch duct members 3 form, and often have combined floodgate to protect in set electromagnetic control structure
Hold buckle, transmission crank arm 4, combined floodgate armature 5, closing coil 6 and tripping spring 7；Wherein, the flex point of transmission crank arm 4 is arranged on conjunction
In lock rotating shaft 8, an arm of transmission crank arm 4 is combined floodgate armature 5, and press tripping spring 7 at arm end, and another arm connects vacuum switch pipe portion
The moving contact of part 3；In the longitudinally central position of combined floodgate armature 5, horizontal is top（Or keep to the side）Position, has counter sink 15；Should
It is directly φ 6mm that counter sink 15 crosses through hole inside-out, this hole countersunk head depth 3mm inside-out；Diameter phi 12mm；With this counter sink
Corresponding longitudinally central position on shrouding 2 position after the metal that 15 positions face, also there is a groove 17 horizontal upper position,
The two ends of groove 17 are the circular arc of φ 6mm, overall length is 18mm；Groove 17 on one long draw 10 shrouding 2 through after corresponding metal,
A diameter of φ 5mm of long draw 10, length is 235mm；The part 14 that caps of long draw connects the counter sink on combined floodgate armature 5
15, the segment thickness that caps of long draw 10 is 2.8mm, a diameter of φ 11mm, the long 45mm of tapping of other end silking part；Length is drawn
The silking part of bar 10 another end passes through alignment pin 13 " u "-shaped linkage block corresponding with manual-operating mechanism gangbar 12 11 activity
Connect；The deferent segment of described manual-operating mechanism gangbar 12 is square bar, and two ends are in round bar shape, the long 300mm width 16mm of bar 12；
Described " u "-shaped linkage block 11 has two pieces, and every piece of bottom correspondence is welded in the plane of manual-operating mechanism gangbar 12 square bar
On, the center on top both sides opens φ 10mm pin-and-hole 16 respectively；" u "-shaped linkage block 11 adopts 4mm iron plate punch forming, cutting
Width is 30mm, highly for 60mm；Described alignment pin 13 is in cylindrical shape, and alignment pin 13 adopts the round steel of φ 10mm, cutting
Long 40mm；Described alignment pin 13 is in that cylinder two ends are held in the pin-and-hole injecting " u "-shaped linkage block both sides respectively；In alignment pin
Middle part also has transverse holes, makes the silking of one of above-mentioned long draw partially pass through this transverse holes, and has two adjusting nuts 9 to lock
Tight or and cap screw calibration locking.
Described manual-operating mechanism closes/fast separation structure soon using spring energy-storage：Manual-operating mechanism be close a floodgate/point
In lock action, Automatic-drawing spring carries out instantaneous energy storage.
Each " u "-shaped linkage block 11 described is welded on the position of manual-operating mechanism gangbar 12, opens with handing over vacuum respectively
Combined floodgate armature 5 counter sink 15 positions closed on duct member 3 are corresponding, should ensure that long draw 10 is parallel placed in the middle.
Assemble method：Long draw 10 is passed through shrouding 2 after the combined floodgate armature 5 of vacuum contactor and metal；And fixation is installed
Good vacuum contactor and manual-operating mechanism；The longitudinally mounted position at long draw 10 center is than the gangbar 12 of manual-operating mechanism
Plan-position will high 46mm, corresponding for " u "-shaped linkage block 11 long draw 10 center is welded in the plane of gangbar 12,
By " alignment pin " 13 straight cutting in the circular hole of " u "-shaped linkage block 11, by long draw 10 straight cutting in the circular hole of alignment pin 13, it is used in combination
Two φ 6mm the unnecessary threaded section of cap screw calibration locking.
This mechanism part function describes：There is manual conjunction/point function, mechanism's separating brake has two ways：One electricity point, that is, in machine
AC220V voltage is applied on switching winding in structure just can achieve；Second-hand point, that is, the joystick pulling operating mechanism is to sub-gate position
Put and just can achieve separating brake.
Through actual test and many experiments, the separating brake/combined floodgate stroke of manual-operating mechanism is more than two vacuum contactors and closes
The separating brake of lock armature 5/combined floodgate stroke；Separating brake/the closing moment of manual-operating mechanism is more than two two vacuum contactors
High closing moment；And test six vacuum switch duct members 3 can reliable synchronization action separating brake/combined floodgate therewith.Due to manual operation
Mechanism's linkage structure is simple and reliable, and after admittedly mixing up set screw, it is possible to achieve two vacuum contactor synchronization actions.Significantly
Increased the coefficient of stability in actual applications.
Claims (2)
1. a kind of mechanical emergency starter of star delta reduced-voltage starting, by insulation every electric framework（1）, shrouding after metal（2）, two
Set Electromagnetic Control mechanism, manual-operating mechanism and two sets of vacuum switch duct members（3）Composition, often has conjunction in set electromagnetic control structure
Lock keeps buckle, transmission crank arm（4）, combined floodgate armature（5）, closing coil（6）And tripping spring（7）；Wherein, transmission crank arm（4）
Flex point be arranged in combined floodgate rotating shaft 8, transmission crank arm（4）An arm be combined floodgate armature（5）, tripping spring is pressed at arm end（7）, separately
One arm connects vacuum switch duct member（3）Moving contact；Its characteristic is：In combined floodgate armature（5）Longitudinally central position of keeping to the side,
Have counter sink（15）, with this counter sink（15）Shrouding after the corresponding metal in position（2）One groove mutually should be had on position（17）；
One long draw（10）Pass through shrouding after corresponding metal（2）On groove（17）, long draw cap part（14）Connect rank of closing a floodgate
Ferrum（5）On counter sink（15）, long draw（10）The silking part of another end passes through alignment pin（13）With manual-operating mechanism linkage
Bar（12）Upper corresponding " u "-shaped linkage block（11）It is flexibly connected；Described manual-operating mechanism gangbar（12）Deferent segment be side
Shape steel, two ends are in round bar shape；Described " u "-shaped linkage block（11）There are two pieces, every piece of bottom correspondence is welded in manual-operating mechanism
Gangbar（12）In the plane of square bar, the center on top both sides opens pin hole respectively（16）；Described alignment pin（13）
Hold reeve " u "-shaped linkage block in cylinder two ends respectively（11）The pin-and-hole on both sides（16）In；In alignment pin（13）Middle part
Also have transverse holes, make one of above-mentioned long draw（10）Silking partially pass through this transverse holes, and have two adjusting nuts（9）Lock
Tightly.
2. the mechanical emergency starter of a kind of star delta reduced-voltage starting according to claim 1, its characteristic also resides in：Institute
The manual-operating mechanism stated closes/fast separation structure soon using spring energy-storage：Manual-operating mechanism be in the action of combined floodgate/separating brake from
Dynamic extension spring carries out instantaneous energy storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611124743.5A CN106409600A (en) | 2016-12-08 | 2016-12-08 | Mechanical emergency starting apparatus for start-delta voltage-reduction starting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611124743.5A CN106409600A (en) | 2016-12-08 | 2016-12-08 | Mechanical emergency starting apparatus for start-delta voltage-reduction starting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106409600A true CN106409600A (en) | 2017-02-15 |
Family
ID=58084721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611124743.5A Pending CN106409600A (en) | 2016-12-08 | 2016-12-08 | Mechanical emergency starting apparatus for start-delta voltage-reduction starting |
Country Status (1)
| Country | Link |
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| CN (1) | CN106409600A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992080A (en) * | 2017-05-02 | 2017-07-28 | 苏州市晔达给水设备有限公司 | A kind of fire-fighting star triangle pressure reducing mechanical emergency starting device |
| CN108335937A (en) * | 2018-03-26 | 2018-07-27 | 沈阳斯沃电器有限公司 | A kind of mechanical emergency starting device and star triangle contactor |
| CN109245618A (en) * | 2018-11-20 | 2019-01-18 | 北京明日电器设备有限责任公司 | A kind of mechanical star-triangle start device of motor |
| CN109449019A (en) * | 2018-09-20 | 2019-03-08 | 四川建筑职业技术学院 | Remote switch control system based on the network platform |
| CN110364377A (en) * | 2018-03-26 | 2019-10-22 | 施耐德电器工业公司 | Change-over switching mechanism and double power supply automatic transfer switch including the change-over switching mechanism |
| CN109378232B (en) * | 2018-11-06 | 2024-01-23 | 安士缔(中国)电气设备有限公司 | Mechanical forced starting device applied to star-delta voltage reduction starting of fire pump |
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| CN205069539U (en) * | 2015-10-15 | 2016-03-02 | 新余学院 | Communication circuit breaker of good reliability |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992080A (en) * | 2017-05-02 | 2017-07-28 | 苏州市晔达给水设备有限公司 | A kind of fire-fighting star triangle pressure reducing mechanical emergency starting device |
| CN106992080B (en) * | 2017-05-02 | 2019-07-16 | 苏州市晔达给水设备有限公司 | A kind of fire-fighting star triangle pressure reducing mechanical emergency starting device |
| CN108335937A (en) * | 2018-03-26 | 2018-07-27 | 沈阳斯沃电器有限公司 | A kind of mechanical emergency starting device and star triangle contactor |
| CN110364377A (en) * | 2018-03-26 | 2019-10-22 | 施耐德电器工业公司 | Change-over switching mechanism and double power supply automatic transfer switch including the change-over switching mechanism |
| CN110364377B (en) * | 2018-03-26 | 2022-05-03 | 施耐德电器工业公司 | Change-over switch mechanism and dual-power automatic change-over switch comprising same |
| CN108335937B (en) * | 2018-03-26 | 2024-03-29 | 沈阳斯沃电器有限公司 | Mechanical emergency starting device and star three-angle contactor |
| CN109449019A (en) * | 2018-09-20 | 2019-03-08 | 四川建筑职业技术学院 | Remote switch control system based on the network platform |
| CN109378232B (en) * | 2018-11-06 | 2024-01-23 | 安士缔(中国)电气设备有限公司 | Mechanical forced starting device applied to star-delta voltage reduction starting of fire pump |
| CN109245618A (en) * | 2018-11-20 | 2019-01-18 | 北京明日电器设备有限责任公司 | A kind of mechanical star-triangle start device of motor |
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Application publication date: 20170215 |
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| WD01 | Invention patent application deemed withdrawn after publication |