CN105355505A - Vacuum alternating-current contactor for mechanical emergency - Google Patents
Vacuum alternating-current contactor for mechanical emergency Download PDFInfo
- Publication number
- CN105355505A CN105355505A CN201510872285.2A CN201510872285A CN105355505A CN 105355505 A CN105355505 A CN 105355505A CN 201510872285 A CN201510872285 A CN 201510872285A CN 105355505 A CN105355505 A CN 105355505A
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- China
- Prior art keywords
- operating mechanism
- vacuum
- combined floodgate
- armature
- manual
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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
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention relates to a vacuum alternating-current contactor for mechanical emergency. The vacuum alternating-current contactor is composed of an insulated electrical isolation framework, a metal rear sealing plate, an electromagnetic operating mechanism, a manual operating mechanism and a vacuum switching tube; the electromagnetic operating mechanism is provided with a closing keeping buckle plate, a transmission crank arm, a closing armature, a closing coil and an opening spring; a counterbore is formed close to the edge in the longitudinal center of the closing armature, and the metal rear sealing plate is provided with a through hole opposite to the counterbore; a long pull rod penetrates through the through hole in the metal rear sealing plate, the capped portion of the long pull rod is connected with the counterbore of the closing armature, and the tapping portion of the long pull rod is connected with an L-shaped pull hook of a linkage rod of the manual operating mechanism. When a secondary control circuit fails or an electromagnetic coil of a vacuum switch is damaged, a fire-fighting water pump and a hydrant can be manually started for emergency by adopting the vacuum alternating-current contactor.
Description
Technical field
The present invention relates to a kind of contactor arrangement, more particularly relate to a kind of can the vacuum A. C. contactor of mechanical emergency action.
Background technology
Vacuum A. C. contactor is widely used in, colliery, electric power, metallurgical, weaving, the various industry department such as skyscraper.Be made up of every parts such as electric framework, metab, transmission crank arm, electromagnetic system and vacuum switch tubes insulation, when solenoid is by control voltage, armature drives connecting lever to rotate, main contact in vacuum switch tube is connected, after solenoid power-off, due to tripping spring effect, make main contact disjunction.Vacuum A. C. contactor is applicable to exchange: 50Hz. rated voltage: 1140V, the feeding network of rated current 63 to 400A, and control voltage: AC220V connects and point deenergizing for remote, and the use of Fraquent start and stopping alternating current motor.But, when this vacuum contactor is used for fire water-supply and hydrant system, there is control circuit when breaking down, without feed motion.Standard GB/T 50974-2014 " fire water-supply and hydrant system technical specification " the 11.0.12 article regulation that on October 1st, 2014 implements: Firefighting Pump Control cabinet should arrange mechanical emergency and open pumping function.This interpretation of section is: as long as power supply is normal, and no matter control circuit how can force start, but does not mention the more details realizing this function.
Summary of the invention
The object of the invention is to be to provide a kind of can the vacuum A. C. contactor of mechanical emergency action, its armature part and manual-operating mechanism are improved, realize mechanical emergency to start, mechanical emergency can be produced and open pumping function, be exactly in last critical moment, when main power source is still intact when control circuit breaks down, force fire pump to start by mechanical emergency starting drive, this beyond doubt opens on the basis of pumping function in tradition based on control circuit, improves reliability.
The object of the invention is to be achieved through the following technical solutions:
A kind of can the vacuum A. C. contactor of mechanical emergency action, be made up of insulation shrouding, electromagnetic operating mechanism, manual-operating mechanism and vacuum switch duct member after electric framework, metal, electromagnetic operating mechanism having to close a floodgate keeps buckle, transmission crank arm, combined floodgate armature, closing coil, switching winding and tripping spring; Wherein, the flex point of transmission crank arm is arranged in combined floodgate rotating shaft, and an arm of transmission crank arm is combined floodgate armature, and arm end presses tripping spring, and another arm connects the moving contact of vacuum switch tube; Closing coil is had under combined floodgate armature; Close a floodgate and keep buckle one end to have buckle extension spring to draw, another end has the clasp stopping combined floodgate armature; It is characterized in that; Keep to the side position, to have counter sink at the center of combined floodgate armature longitudinal direction, after the metal faced with this counter sink position, shrouding also has a through hole; One long draw is through the through hole on shrouding after metal, and the counter sink added on cap portion connection combined floodgate armature of long draw, the threaded section of long draw is connected with " L " shape pull hook of the gangbar of manual-operating mechanism.
Described " L " shape pull hook one wing is fixed by screws in gangbar; The wing tip of another wing opens circular hole, allows the threaded section of long draw through circular hole, and has two adjusting nut lockings.
Described manual-operating mechanism adopts the spring energy-storage of known technology to close/fast separation structure soon; Manual-operating mechanism Automatic-drawing spring in feed motion carries out energy storage.
The present invention is applied in Firefighting Pump Control, and when there is control circuit and breaking down, electromagnetic operating mechanism is without feed motion; Now, operative employee is when pulling manual-operating mechanism, gangbar is rotated, " L " shape pull hook traction long draw in gangbar drives combined floodgate armature, the reaction force that combined floodgate armature overcomes tripping spring rotates counterclockwise along combined floodgate rotating shaft rapidly, its transmission crank arm promotes vacuum switch tube moving contact moves, and with fixed contact close contact, makes vacuum tube be in closing position.Simultaneously the close a floodgate top of armature moves to left compression tripping spring, and no longer restriction is closed a floodgate and kept the clasp of buckle, closes a floodgate and keeps buckle left swing locking in bottom under the effect of buckle extension spring.After feed motion puts in place, electromagnetic operating mechanism has the trend of replying original gate-dividing state under the reaction of tripping spring, but now has the locking of the maintenance buckle that closes a floodgate, and sleeve mechanism remains on "on" position, and making process terminates.
The present invention compares with prior art,
1. can realize electromagnetism combined floodgate/separating brake and mechanical combined floodgate/separating brake;
2. manual-operating mechanism of the present invention adopts energy storage type to close/fast separation structure soon, and this joystick can only move, from open position to final run location to a direction; If operator's release lever, this handle just automatically returns to open position.Meet standard GB/T 50974-2014 " fire water-supply and hydrant system technical specification " the 11.0.12 article regulation implemented on October 1st, 2014;
3. machinery close/point drive main contact and auxiliary contact adhesive and disjunction by inner gangbar simultaneously, there is not any asynchronous effect in whole course of action;
4. electricity of the present invention divides/machine conjunction function, and after machinery closes a floodgate operation, in order to make opening time shorter during separating brake, efficiency is higher, adds electromagnetism switching-off device in the entire system, and this device directly uses AC220V to power; When needs are shut down operator press the whole switching-on mechanism of stop botton just can directly separating brake thread off, if cannot perform for a certain reason, also can manually divide by force;
5. the present invention's electricity closes and is better than machine conjunction: when operator starts mechanical emergency starting, and the position stroke of operating grip is after combined floodgate self-locking position, before contact is about to close a floodgate; If at that time solenoid just can preferential action before contact closes a floodgate or intact, the synchronism, the speed which increase combined floodgate also have fail safe;
6. the present invention adapts to occasion: be applicable to GB new standard: GB50974-2014 " fire water-supply and hydrant system technical specification " 11.0.12 article: Firefighting Pump Control cabinet should arrange mechanical emergency and open pump unit (startup pump motor by force that can be manual in the normal situation of power supply).When secondary control loop breaks down, or when the solenoid of vacuum switch itself damages, fire-fighting pump-feeding and fire hydrant can be started by manual-operated emergent.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the combined floodgate armature schematic diagram in Fig. 1.
Fig. 3 is the middle cutaway view of Fig. 2.
Fig. 4 is shrouding schematic diagram after the metal in Fig. 1.
Fig. 5 is the middle cutaway view of Fig. 4.
Fig. 6 is the long draw schematic diagram in Fig. 1.
Fig. 7 is " L " shape pull hook schematic diagram in Fig. 1.
Fig. 8 is the middle cutaway view of Fig. 7.
In figure: 1 insulation is every electric framework; Shrouding after 2 metals; 3 vacuum switch duct members; 4 close a floodgate keeps buckle; 5 transmission crank arm; 6 combined floodgate armature; 7 closing coils; 8 tripping springs; 9 combined floodgate rotating shafts; 10 buckle extension springs; 11 counter sinks; 12 through holes; 13 long draws; 14 add cap portion; 15 " L " shape pull hook; 16 gangbar; 17 circular holes.
Embodiment
Below in conjunction with drawings and embodiments, the present invention will be further described.
A kind of can the vacuum A. C. contactor of mechanical emergency action, be made up of insulation shrouding 2, electromagnetic operating mechanism, manual-operating mechanism and vacuum switch duct member 3 after electric framework 1, metal, electromagnetic operating mechanism having to close a floodgate keeps buckle 4, transmission crank arm 5, combined floodgate armature 6, closing coil 7, switching winding and tripping spring 8; Wherein, the flex point of transmission crank arm 5 is arranged in combined floodgate rotating shaft 9, and an arm of transmission crank arm 5 is combined floodgate armature 6, and arm end presses tripping spring 8, and another arm connects the moving contact of vacuum switch duct member 3; Combined floodgate armature has closing coil 76 times; Close a floodgate and keep buckle 4 one end to have buckle extension spring 10 to draw, another end has the clasp stopping combined floodgate armature 6; It is characterized in that; In the center of combined floodgate armature 6 longitudinal direction, horizontal top (or keeping to the side) position, has counter sink 11; This counter sink 11 is φ 7.5mm from inner outside through-hole diameter excessively, the dark 4mm of the outside countersunk head of this Kong Congli; Diameter phi 12mm; The center of shrouding 2 longitudinal direction after the metal faced with this counter sink 11 position, also there is a through hole 12 horizontal upper position; This through-hole diameter is φ 12mm; One long draw 13 is through the through hole 12 on shrouding 2 after metal; The diameter of long draw 13 is φ 5mm, and length is 180mm; The cap portion 14 that adds of long draw 13 connects counter sink 11 on combined floodgate armature 6, and the cap portion thickness that adds of long draw 13 is 3.5mm, and diameter is φ 11mm; The long 45mm of other end tapping; The threaded section of long draw 13 is with in the gangbar 16 of manual-operating mechanism " L " shape pull hook 15 is connected.
Above-mentioned " L " shape pull hook 15 1 wing via hole φ 7mm is fixed by screws in gangbar 16; The wing tip of another wing opens circular hole 17, circular hole φ 10mm; Allow the threaded section of long draw 13 through circular hole 17, and have two adjusting nut lockings; " L " shape pull hook 15 adopts GB 50# angle bar, and cutting width is 48mm; " L " shape pull hook 15 has 2 pieces.
Above-mentioned manual-operating mechanism adopts spring energy-storage to close/fast separation structure soon.
The gangbar 16 of manual-operating mechanism is square, and delivery stroke is adjustable; The long 230mm of gangbar 16, wide 16mm; The corresponding AC vacuum contactor of this gangbar 16 installation hole site, parallel via hole tapping diameter is φ 8mm.
Assemble method: by long draw 13 through shrouding 2 after combined floodgate armature 6 and the metal of vacuum contactor; And installation fixes vacuum contactor and manual-operating mechanism; Longitudinal installation site 31mm lower than the position of the gangbar 16 of manual-operating mechanism of long draw 13, lateral attitude 8mm lower than the position of the gangbar 16 of manual-operating mechanism; " L " shape pull hook 15 orientation is arranged in gangbar 16, and passes the outer unnecessary threaded section of " L " shape pull hook 15 with double nut locking.
This mechanism part functional description: there is manual conjunction/point function, motor-driven separating brake has 2 kinds of modes: an electricity point, namely applies AC220V voltage and just can realize separating brake on switching winding; Divide on the other hand, the joystick namely pulling manual-operating mechanism just can realize separating brake to open position.
Through actual measurement test, the stroke of manual-operating mechanism and pulling force are completely satisfied can combined floodgate armature 6 adhesive of vacuum A. C. contactor of mechanical emergency action and release travel.And test vacuum switch duct member 3 can reliable adhesive and reliable disjunction thereupon.Because manual-operating mechanism linkage structure is simple and reliable, and after admittedly regulating adjusting nut, 2 groups of AC vacuum contactor can be driven to realize synchronous adhesive and release simultaneously.
Claims (3)
1. one kind can the vacuum A. C. contactor of mechanical emergency action, be made up of insulation shrouding (2), electromagnetic operating mechanism, manual-operating mechanism and vacuum switch duct member (3) after electric framework (1), metal, electromagnetic operating mechanism have maintenance buckle (4), transmission crank arm (5), combined floodgate armature (6), closing coil (7), switching winding and tripping spring (8); Wherein, the flex point of transmission crank arm (5) is arranged in combined floodgate rotating shaft (9), and an arm of transmission crank arm (5) is combined floodgate armature (6), and arm end presses tripping spring (8), and another arm connects the moving contact of vacuum switch duct member (3); Closing coil (7) is had under combined floodgate armature (6); Close a floodgate and keep buckle (4) one end to have buckle extension spring (10) to draw, another end has the clasp stopping combined floodgate armature (6); It is characterized in that; The middle part longitudinal at combined floodgate armature (6) keeps to the side position, to have counter sink (11), after the metal faced, shrouding (2) also has a through hole (12) with this counter sink (11) position; One long draw (13) is through the through hole (12) on shrouding after metal (2), the counter sink (11) added on cap portion (14) connection combined floodgate armature (6) of long draw (13), the threaded section of long draw (13) is connected with " L " shape pull hook (15) of the gangbar (16) of manual-operating mechanism.
2. can the vacuum A. C. contactor of mechanical emergency action according to claim 1 one kind, it is characterized in that: described " L " shape pull hook (15) wing is fixed by screws in gangbar (16); The wing tip of another wing opens circular hole (17), allows the threaded section of long draw (13) through circular hole (17), and has two adjusting nut lockings.
3. can the vacuum A. C. contactor of mechanical emergency action according to claim 1 one kind, it is characterized in that: described manual-operating mechanism adopts spring energy-storage to close/fast separation structure soon; The gangbar (16) of described manual-operating mechanism is for square, and delivery stroke is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510872285.2A CN105355505A (en) | 2015-12-03 | 2015-12-03 | Vacuum alternating-current contactor for mechanical emergency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510872285.2A CN105355505A (en) | 2015-12-03 | 2015-12-03 | Vacuum alternating-current contactor for mechanical emergency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105355505A true CN105355505A (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510872285.2A Pending CN105355505A (en) | 2015-12-03 | 2015-12-03 | Vacuum alternating-current contactor for mechanical emergency |
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| Country | Link |
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| CN (1) | CN105355505A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409600A (en) * | 2016-12-08 | 2017-02-15 | 郴州市东塘电气设备有限公司 | Mechanical emergency starting apparatus for start-delta voltage-reduction starting |
| CN106545502A (en) * | 2016-11-01 | 2017-03-29 | 南通艾德森机电设备有限公司 | A kind of mechanical emergency full voltage starting device |
| CN106653473A (en) * | 2016-12-08 | 2017-05-10 | 郴州市东塘电气设备有限公司 | Mechanical emergency starting apparatus of fire pump |
| CN106653472A (en) * | 2016-12-08 | 2017-05-10 | 郴州市东塘电气设备有限公司 | Mechanical emergency starting apparatus applied to star-delta voltage-reduction starting |
| CN107327394A (en) * | 2016-04-29 | 2017-11-07 | 北京紫光新锐科技发展有限公司 | A kind of mechanical starter by force for Firefighting Pump Control cabinet |
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| CN200959323Y (en) * | 2006-10-26 | 2007-10-10 | 上海广电电气（集团）有限公司 | Releasing mechanism of contactor switch |
| CN202332711U (en) * | 2011-11-24 | 2012-07-11 | 浙江新安江开关有限公司 | Closing holding mechanism of vacuum contactor |
| CN102822927A (en) * | 2010-03-31 | 2012-12-12 | 三菱电机株式会社 | Electromagnetically operated mechanism, and manual opening and closing device of same |
| CN203192719U (en) * | 2013-01-28 | 2013-09-11 | 安徽宇腾真空电气有限责任公司 | Novel horizontal type permanent magnetic mechanism breaker |
| CN205177701U (en) * | 2015-12-03 | 2016-04-20 | 郴州市东塘电气设备有限公司 | Vacuum ac contactor that can mechanical emergency action |
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2015
- 2015-12-03 CN CN201510872285.2A patent/CN105355505A/en active Pending
Patent Citations (5)
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| CN200959323Y (en) * | 2006-10-26 | 2007-10-10 | 上海广电电气（集团）有限公司 | Releasing mechanism of contactor switch |
| CN102822927A (en) * | 2010-03-31 | 2012-12-12 | 三菱电机株式会社 | Electromagnetically operated mechanism, and manual opening and closing device of same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327394A (en) * | 2016-04-29 | 2017-11-07 | 北京紫光新锐科技发展有限公司 | A kind of mechanical starter by force for Firefighting Pump Control cabinet |
| CN106545502A (en) * | 2016-11-01 | 2017-03-29 | 南通艾德森机电设备有限公司 | A kind of mechanical emergency full voltage starting device |
| CN106409600A (en) * | 2016-12-08 | 2017-02-15 | 郴州市东塘电气设备有限公司 | Mechanical emergency starting apparatus for start-delta voltage-reduction starting |
| CN106653473A (en) * | 2016-12-08 | 2017-05-10 | 郴州市东塘电气设备有限公司 | Mechanical emergency starting apparatus of fire pump |
| CN106653472A (en) * | 2016-12-08 | 2017-05-10 | 郴州市东塘电气设备有限公司 | Mechanical emergency starting apparatus applied to star-delta voltage-reduction starting |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |