CN107424872A - A kind of emergent star triangle start device of armstrong's patent - Google Patents

A kind of emergent star triangle start device of armstrong's patent Download PDF

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Publication number
CN107424872A
CN107424872A CN201710661504.1A CN201710661504A CN107424872A CN 107424872 A CN107424872 A CN 107424872A CN 201710661504 A CN201710661504 A CN 201710661504A CN 107424872 A CN107424872 A CN 107424872A
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CN
China
Prior art keywords
guide rod
cam
contactor
driving device
manual driving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710661504.1A
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Chinese (zh)
Inventor
高林权
胡克城
瞿献朋
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Anhui Light Electric Automation Technology Co Ltd
Original Assignee
Anhui Light Electric Automation Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Light Electric Automation Technology Co Ltd filed Critical Anhui Light Electric Automation Technology Co Ltd
Priority to CN201710661504.1A priority Critical patent/CN107424872A/en
Publication of CN107424872A publication Critical patent/CN107424872A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00Details of electromagnetic relays
    • H01H50/64Driving arrangements between movable part of magnetic circuit and contact
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C37/00Control of fire-fighting equipment
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/26Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
    • H02P1/32Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by star/delta switching

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Transmission Devices (AREA)

Abstract

The invention discloses a kind of emergent star triangle start device of armstrong's patent, it includes manual driving device, rotating shaft, support, first cam, second cam, 3rd cam, first guide rod, second guide rod, 3rd guide rod and the direction of motion limit mechanism, axis of rotation is on support, manual driving device is connected with rotating shaft, first cam, second cam and the 3rd cam are respectively arranged in rotating shaft, first guide rod, second guide rod and the 3rd guide rod are respectively arranged on the direction of motion and limited in mechanism, the both ends of first guide rod are respectively facing the contactor KM1 of the first cam and star triangle start circuit, the both ends of second guide rod are respectively facing the contactor KM2 of the second cam and star triangle start circuit, the both ends of 3rd guide rod are respectively facing the contactor KM3 of the 3rd cam and star triangle start circuit.Therefore, compared with prior art, the present invention has the advantages of starting current is small, small to power network impact.

Description

A kind of emergent star triangle start device of armstrong's patent
Technical field
The present invention relates to electric fire-control field, and in particular to a kind of emergent star triangle start device of armstrong's patent.
Background technology
At present in electric fire-control field, the usual introduction of foreign technology of technical staff is theoretical, in traditional fire-fighting starts cabinet Increase fire-fighting machinery emergency set, in order to when fire-fighting starts cabinet electric wiring failure, fire water is started by mechanical, hand-driven Pump, insure together for fire-fighting fire extinguishing increase.Concerned countries standard GB50974-2014《Fire water-supply and hydrant system technology rule Model》The 11.0.12 articles have also been made relevant regulations, it is desirable to which fire-fighting, which starts cabinet, must mechanical emergency starting function, related domestic electricity Gas manufactory colleagues imitate the JoslynClark companies in the U.S. by current-limited startup circuit --- star triangle start water pump changes one after another Water pump is directly initiated for full voltage starting, but this Starting mode starting current when starting big motor is especially big, power network is impacted greatly, Voltage ripple of power network conference influences the other electrical equipment electricity consumptions of power network during startup, or even is got over caused by electric motor starting instantaneous large-current Level tripping operation grid power blackout, and fire comes temporarily, grid power blackout is catastrophic for fire-fighting fire extinguishing.Therefore it is this simple straight It is very big to play mechanically activated hidden danger itself.And this big motor directly plays power mode and the existing standard GB/T 50055- in China 2011《Code for design of power distribution of general electrical installations》Middle provision 2.2.1:" during motor starting, its terminal voltage should ensure that machine The starting torque of tool requirement, and caused voltage pulsation works without prejudice to other electrical equipments in a power distribution system " be not consistent.Cause This, it is necessary to a kind of new technical scheme is proposed to solve these problems.
The content of the invention
The present invention proposes a kind of emergent star triangle start device of armstrong's patent, and it is special to solve starting current existing for prior art The problem of big.
To achieve these goals, the technical proposal of the invention is realized in this way:A kind of emergent star triangle of armstrong's patent Starter, including manual driving device, rotating shaft, support, the first cam, the second cam, the 3rd cam, the first guide rod, second Guide rod, the 3rd guide rod and the direction of motion limit mechanism, and the axis of rotation is on the support, the manual driving device It is connected with the rotating shaft, the centre of gyration of first cam offers the first axis hole, and the centre of gyration of second cam is opened Provided with the second axis hole, the centre of gyration of the 3rd cam offers Triaxial hole, and the rotating shaft is embedded in described first successively In axis hole, the second axis hole and Triaxial hole, first guide rod, the second guide rod and the 3rd guide rod are respectively arranged on the motion Direction is limited in mechanism, and the both ends of first guide rod are respectively facing the contactor of the first cam and star the triangle start circuit KM1, the both ends of second guide rod are respectively facing the contactor KM2 of the second cam and star the triangle start circuit, and described The both ends of three guide rods are respectively facing the contactor KM3 of the 3rd cam and star triangle start circuit.
The manual driving device has first position, the second place and the 3rd position.
When the manual driving device is in first position, first cam departs from first guide rod, described Second cam departs from second guide rod, and the 3rd cam departs from the 3rd guide rod, contactor KM1, contactor KM2 And contactor KM3 is separated.
When the manual driving device is in the second place, first cam contacts with first guide rod, described Second cam contacts with second guide rod, and the 3rd cam departs from the 3rd guide rod, contactor KM1 and contactor KM2 adhesives, contactor KM3 are separated.
When the manual driving device is in three positions, first cam contacts with first guide rod, described Second cam departs from second guide rod, and the 3rd cam contacts with the 3rd guide rod, contactor KM1 and contactor KM3 adhesives, contactor KM2 are separated.
Compared with prior art, present invention tool has the advantage that:
Armstrong's patent proposed by the present invention is met an urgent need in star triangle start device, and manual driving device is connected with rotating shaft, and first The centre of gyration of cam offers the first axis hole, and the centre of gyration of the second cam offers the second axis hole, the revolution of the 3rd cam Center offers Triaxial hole, and rotating shaft is embedded in the first axis hole, the second axis hole and Triaxial hole successively, the first guide rod, Two guide rods and the 3rd guide rod are respectively arranged on the direction of motion and limited in mechanism, and so manually drive device drives and controlled Axis of rotation, axis of rotation can drive the first cam, the second cam and the 3rd cam rotation in rotating shaft;First guide rod Both ends are respectively facing the contactor KM1 of the first cam and star triangle start circuit, and it is convex that the both ends of the second guide rod are respectively facing second The contactor KM2 of wheel and star triangle start circuit, the both ends of the 3rd guide rod are respectively facing the 3rd cam and star triangle start circuit Contactor KM3, and manual driving device has first position, the second place and the 3rd position, at manual driving device When first position, the first cam and the first guide rod depart from, and the second cam and the second guide rod depart from, the 3rd cam and the 3rd guide rod Depart from, contactor KM1, contactor KM2 and contactor KM3 are separated, and star triangle start circuit is in halted state;In hand For dynamic drive device during being moved from first position to the second place, the surface of the first cam moves closer to the first guide rod One end, the surface of the second cam move closer to one end of the second guide rod;When manual driving device is in the second place, first is convex Wheel and the end thereof contacts of the first guide rod, the other end top pressure contactor KM1 of the first guide rod, contactor KM1 adhesives, the second cam with The end thereof contacts of second guide rod, the other end of the second guide rod push down contactor KM2, contactor KM2 adhesives, the 3rd cam and the 3rd Guide rod departs from, and contactor KM3 is separated, and machine winding is in Astrocytic conditioned medium, and star triangle start circuit is in starting state;Manual During drive device is moved from the second place to the 3rd position, the termination of the surface of the first cam still with the first guide rod Touch, the end thereof contacts of the surface of the second cam still with the second guide rod, but have the trend of phase separation, the surface of the 3rd cam is gradual Close to one end of the 3rd guide rod;When manual driving device is in three positions, the other end top pressure contactor of the first guide rod KM1, contactor KM1 still adhesive, the second cam and the second guide rod depart from, and contactor KM2 is separated, the 3rd cam and the 3rd guide rod End thereof contacts, the other end top pressure contactor KM3 of the 3rd guide rod, contactor KM3 adhesives, star triangle start circuit be in operation State.The Starting mode of the present invention is as electric wiring Starting mode, and machine winding mode presses star-like connection before this during startup Start, by triangle connection operation during start completion, starting current is small, power network is impacted it is small as the electric Starting mode of circuit, The stabilization of power grids is can guarantee that when starting motor, ensures the quality of voltage of power network.Therefore, compared with prior art, the present invention, which has, starts Electric current is small, impacts the advantages of small to power network, the present invention can guarantee that the stabilization of power grids when starting motor, ensure the voltage matter of power network Amount, and the winding of motor just disconnects winding power failure after switching to star by triangle during shutdown, so as to mitigate electric motor with vane wheel machinery The long electric motor with vane wheel service life in the stress court of a feudal ruler.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the circuit diagram of star triangle start circuit;
Fig. 2 is the sectional side elevation of the present invention.
In figure:1- manual driving devices, 2- rotating shafts, 3- supports, the cams of 4- first, the cams of 5- second, the cams of 6- the 3rd, 7- First guide rod, the guide rods of 8- second, the guide rods of 9- the 3rd, the 10- directions of motion limit mechanism.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not paid Embodiment, belong to the scope of protection of the invention.
The star triangle start device as shown in Fig. 2 a kind of armstrong's patent proposed by the present invention is met an urgent need, including manual driving device 1st, rotating shaft 2, support 3, the first cam 4, the second cam 5, the 3rd cam 6, the first guide rod 7, the second guide rod 8, the 3rd guide rod 9 and The direction of motion limits mechanism 10, and rotating shaft 2 is rotated on support 3, and manual driving device 1 is connected with rotating shaft 2, the first cam 4 The centre of gyration offers the first axis hole, and the centre of gyration of the second cam 5 offers the second axis hole, the centre of gyration of the 3rd cam 6 Triaxial hole is offered, rotating shaft 2 is embedded in the first axis hole, the second axis hole and Triaxial hole, so manually driven successively Device 1 is moved to drive and control rotating shaft 2 to rotate, rotating shaft 2, which rotates, can drive the first cam 4, the second cam 5 in rotating shaft 2 Rotated with the 3rd cam 6.
As depicted in figs. 1 and 2, the first guide rod 7, the second guide rod 8 and the 3rd guide rod 9 are respectively arranged on the direction of motion and limit machine In structure 10, the both ends of the first guide rod 7 are respectively facing the contactor KM1 of the first cam 4 and star triangle start circuit, the second guide rod 8 Both ends be respectively facing the contactor KM2 of the second cam 5 and star triangle start circuit, the both ends of the 3rd guide rod 9 are respectively facing The contactor KM3 of three cams 6 and star triangle start circuit, the direction of motion, which limits mechanism 10, can multiple choices, the present embodiment In the direction of motion limit mechanism 10 and be one piece and offer the blooms of three through holes above, the first guide rod 7, the second guide rod 8 and 3rd guide rod 9 is respectively arranged in three through holes, and the first cam 4, the second cam 5 and the 3rd cam 6 are respectively arranged on three through holes Side opening, contactor KM1, contactor KM2 and the contactor KM3 of star triangle start circuit are respectively arranged on three through holes Opposite side opening.
As shown in Fig. 2 manual driving device 1 can have a multiple choices, the manual driving device 1 in the present embodiment is hand Handle.Manual driving device 1 has first position, the second place and the 3rd position;First position is in manual driving device 1 When, the first cam 4 departs from the first guide rod 7, and the second cam 5 departs from the second guide rod 8, and the 3rd cam 6 and the 3rd guide rod 9 are de- From contactor KM1, contactor KM2 and contactor KM3 be not by the first guide rod 7, the second guide rod 8 and the 3rd guide rod 9 Top pressure acts on, and contactor KM1, contactor KM2 and contactor KM3 are separated, and star triangle start circuit is in halted state.
In manual driving device 1 during being moved from first position to the second place, the surface of the first cam 4 is gradual Close to one end of the first guide rod 7, the surface of the second cam 5 moves closer to one end of the second guide rod 8.
When manual driving device 1 is in the second place, the end thereof contacts of the first cam 4 and the first guide rod 7, the first guide rod 7 other end top pressure is on contactor KM1, contactor KM1 adhesives, the end thereof contacts of the second cam 5 and the second guide rod 8, and second The other end top pressure of guide rod 8 is on contactor KM2, and contactor KM2 adhesives, the 3rd cam 6 departs from the 3rd guide rod 9, contactor KM3 is separated, and machine winding is in Astrocytic conditioned medium, and star triangle start circuit is in starting state.
During manual driving device 1 moves from the second place to the 3rd position, the surface of the first cam 4 still with The end thereof contacts of first guide rod 7, the end thereof contacts of the surface of the second cam 5 still with the second guide rod 8, but have becoming for phase separation Gesture, the surface of the 3rd cam 6 move closer to one end of the 3rd guide rod 9.
When manual driving device 1 is in three positions, the other end of the first guide rod 7 still pushes down contactor KM1, contactor KM1 still adhesives, the second cam 5 depart from the second guide rod 8, and contactor KM2 loses the top pressure effect of the second guide rod 8, contactor KM2 upsprings the second guide rod 8, and contactor KM2 is separated, the end thereof contacts of the 3rd cam 6 and the 3rd guide rod 9, the 3rd guide rod 9 The other end pushes down contactor KM3, contactor KM3 adhesives, and star triangle start circuit is in running status.
During manual driving device 1 is moved from the 3rd position to first position, the surface of the first cam 4 still with The end thereof contacts of first guide rod 7, but have the trend of phase separation, the second cam 5 is still separated with the second guide rod 8, the 3rd cam 6 End thereof contacts of the surface still with the 3rd guide rod 9, but have the trend of phase separation.Subsequent manual driving device 1 can move to the One position, repeat above-mentioned process.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims (1)

  1. The star triangle start device 1. a kind of armstrong's patent is met an urgent need, it is characterised in that including manual driving device (1), rotating shaft (2), Support (3), the first cam (4), the second cam (5), the 3rd cam (6), the first guide rod (7), the second guide rod (8), the 3rd guide rod (9) and the direction of motion limits mechanism (10), and the rotating shaft (2) is rotated on the support (3), the manual driving device (1) it is connected with the rotating shaft (2), the centre of gyration of first cam (4) offers the first axis hole, second cam (5) The centre of gyration offer the second axis hole, the centre of gyration of the 3rd cam (6) offers Triaxial hole, the rotating shaft (2) Be embedded in successively in first axis hole, the second axis hole and Triaxial hole, first guide rod (7), the second guide rod (8) and 3rd guide rod (9) is respectively arranged on the direction of motion and limited in mechanism (10), and the both ends of first guide rod (7) are respectively facing institute The contactor KM1 of the first cam (4) and star triangle start circuit is stated, the both ends of second guide rod (8) are respectively facing described The contactor KM2 of two cams (5) and star triangle start circuit, it is convex that the both ends of the 3rd guide rod (9) are respectively facing the described 3rd Take turns the contactor KM3 of (6) and star triangle start circuit;
    The manual driving device (1) has first position, the second place and the 3rd position;
    When the manual driving device (1) is in first position, first cam (4) departs from first guide rod (7), Second cam (5) departs from second guide rod (8), and the 3rd cam (6) departs from the 3rd guide rod (9), connects Tentaculum KM1, contactor KM2 and contactor KM3 are separated;
    When the manual driving device (1) is in the second place, first cam (4) contacts with first guide rod (7), Second cam (5) contacts with second guide rod (8), and the 3rd cam (6) departs from the 3rd guide rod (9), connects Tentaculum KM1 and contactor KM2 adhesives, contactor KM3 are separated;
    When the manual driving device (1) is in three positions, first cam (4) contacts with first guide rod (7), Second cam (5) departs from second guide rod (8), and the 3rd cam (6) contacts with the 3rd guide rod (9), connect Tentaculum KM1 and contactor KM3 adhesives, contactor KM2 are separated.
CN201710661504.1A 2017-08-04 2017-08-04 A kind of emergent star triangle start device of armstrong's patent Pending CN107424872A (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110098074A (en) * 2019-06-12 2019-08-06 沈阳斯沃电器有限公司 A kind of emergency star angle starter
CN112863907A (en) * 2021-03-11 2021-05-28 南通艾德森机电设备有限公司 Emergency starting device for fire-fighting machinery
CN115742785A (en) * 2021-09-03 2023-03-07 比亚迪股份有限公司 Contactor, charging pile and vehicle
CN115742786A (en) * 2021-09-03 2023-03-07 比亚迪股份有限公司 Contactor, charging and distribution system of vehicle, vehicle and charging pile

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1263676A (en) * 1967-11-28 1972-02-16 Metzenauer & Jung Gmbh Automatic star-delta-switch
CN201117521Y (en) * 2007-11-16 2008-09-17 瞿建喜 Main shaft component
CN101447752A (en) * 2007-11-26 2009-06-03 李斗占 Method for installing and connecting starter circuit
CN202503463U (en) * 2012-04-24 2012-10-24 李斗占 Oil-immersed star delta starter
CN106499615A (en) * 2016-12-27 2017-03-15 北京中科三正电气有限公司 The switch board of the manually operated mechanical device that there is fire pump star angle to start
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
CN207068760U (en) * 2017-08-04 2018-03-02 安徽正光电气自动化科技有限公司 A kind of emergent star triangle start device of armstrong's patent

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1263676A (en) * 1967-11-28 1972-02-16 Metzenauer & Jung Gmbh Automatic star-delta-switch
CN201117521Y (en) * 2007-11-16 2008-09-17 瞿建喜 Main shaft component
CN101447752A (en) * 2007-11-26 2009-06-03 李斗占 Method for installing and connecting starter circuit
CN202503463U (en) * 2012-04-24 2012-10-24 李斗占 Oil-immersed star delta starter
CN106499615A (en) * 2016-12-27 2017-03-15 北京中科三正电气有限公司 The switch board of the manually operated mechanical device that there is fire pump star angle to start
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
CN207068760U (en) * 2017-08-04 2018-03-02 安徽正光电气自动化科技有限公司 A kind of emergent star triangle start device of armstrong's patent

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110098074A (en) * 2019-06-12 2019-08-06 沈阳斯沃电器有限公司 A kind of emergency star angle starter
CN112863907A (en) * 2021-03-11 2021-05-28 南通艾德森机电设备有限公司 Emergency starting device for fire-fighting machinery
CN115742785A (en) * 2021-09-03 2023-03-07 比亚迪股份有限公司 Contactor, charging pile and vehicle
CN115742786A (en) * 2021-09-03 2023-03-07 比亚迪股份有限公司 Contactor, charging and distribution system of vehicle, vehicle and charging pile
CN115742785B (en) * 2021-09-03 2025-07-11 比亚迪股份有限公司 Contactor, charging pile and vehicle

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