KR101556570B1 - Disconnector Switchgear - Google Patents

Disconnector Switchgear Download PDF

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KR101556570B1
KR101556570B1 KR1020150061095A KR20150061095A KR101556570B1 KR 101556570 B1 KR101556570 B1 KR 101556570B1 KR 1020150061095 A KR1020150061095 A KR 1020150061095A KR 20150061095 A KR20150061095 A KR 20150061095A KR 101556570 B1 KR101556570 B1 KR 101556570B1
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chamber
fixed
gears
gear
insulator
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KR20150073889A (en
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심민섭
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주식회사 신흥전력
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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
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/32—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with rectilinearly-movable contact
    • 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
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism

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  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

본 발명은 단로기 개폐장치에 관한 것으로, 보다 상세하게는 접촉충격을 최소화시키면서 유압구동기를 이용하여 유압과 전동을 겸용 사용이 가능하므로 동작불량없이 원활하게 개폐동작 가능하도록 개선된 단로기 개폐장치에 관한 것이다.
본 발명에 따르면, 유압과 전동을 겸용 사용이 가능하므로 동작불량없이 원활하게 단로기 개폐동작이 가능한 효과를 얻을 수 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disconnecting switch opening / closing device, and more particularly, to an improved disconnecting switch opening / closing device capable of smoothly opening / closing operation without malfunction because hydraulic pressure and electric power can be used together with a hydraulic actuator while minimizing contact shock .
According to the present invention, it is possible to use both the hydraulic pressure and the electric power, so that an effect that the disconnector opening and closing operation can be performed smoothly without malfunction can be obtained.

Description

단로기 개폐장치{Disconnector Switchgear}Disconnector Switchgear

본 발명은 단로기 개폐장치에 관한 것으로, 보다 상세하게는 접촉충격을 최소화시키면서 유압구동기를 이용하여 유압과 전동을 겸용 사용이 가능하므로 동작불량없이 원활하게 개폐동작 가능하도록 개선된 단로기 개폐장치에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disconnecting switch opening / closing device, and more particularly, to an improved disconnecting switch opening / closing device capable of smoothly opening / closing operation without malfunction because hydraulic pressure and electric power can be used together with a hydraulic actuator while minimizing contact shock .

일반적으로, 단로기(Disconnector)는 전력설비의 하나로서, 주로 송전선이나 변전소 등에서 차단기를 연 무부하상태로 주회로의 접속을 변경하기 위해 회로를 개폐하는 장치를 말한다.Generally, a disconnector is one of electric power facilities. It is a device that opens and closes a circuit in order to change the connection of the main circuit with the circuit breaker in an unloaded state, such as a transmission line or a substation.

이러한 단로기는 양측 회로가 기계적으로 분리되기 때문에 점검, 수리 등에 편리하고, 차단기와 달리 극히 적은 전류만 통제하므로 구조도 간단한 장점이 있다.Since these circuits are mechanically separated from each other, they are convenient for inspection and repair, and they have a simple structure because they control only a small amount of current unlike circuit breakers.

아울러, 단로기와 관련된 선행기술로는, 실용신안등록공고 제1988-0001428호(1988.04.15), 등록특허 제0339331호(2002.05.22), 등록특허 제0943889호(2010.02.17) 등이 개시되어 있다.As prior art related to the disconnecting device, there have been disclosed a utility model registration notification No. 1988-0001428 (April 15, 1988), a registered patent No. 0339331 (May 22, 2002), a registered patent No. 0943889 (Feb. have.

이와 같은 단로기는 예컨대, 도 1의 예시와 같이, 가동접촉자(10)가 회동되면서 제1단자(20)와 제2단자(30)를 단속하는 형태로 스위칭하도록 구성되는데, 이때 가동접촉자(10)의 구동방식에 따라 전동 또는 수동으로 나누기도 한다.1, the movable contactor 10 is rotated so as to switch the first terminal 20 and the second terminal 30 in an interlocking manner. At this time, the movable contactor 10 is turned on, Depending on the driving method of the motor, it is divided by electric or manual.

전동방식은 수동방식에 비해 편리하므로 현재 많이 활용되고 있으며, 주로 가동접촉자(10)의 축을 전동기(모터)에 연결하여 이를 회전구동시킴으로써 가동접촉자(10)가 회전되면서 단로(斷路)하게 된다.Since the motorized system is more convenient than the manual system, it is widely used at present, and the movable contactor 10 is rotated and disconnected by mainly connecting the axis of the movable contactor 10 to the motor (motor)

그런데, 단로기의 노후에 따른 고착 등에 의해 모터 구동방식으로는 구동력이 약해 단로기가 동작되지 않는 경우가 빈번하게 발생되어 점검, 보수 작업에 차질을 일으키는 문제가 대두되고 있다.However, due to the sticking of the disconnecting device due to aging, the driving force is weak in the motor driving system, and the disconnecting device is frequently not operated, causing problems in the inspection and maintenance work.

뿐만 아니라, 경우에 따라서는 모터 구동시 구동력의 불균일로 인해 가동접촉자(10)가 급선회하면서 접촉 충격을 일으켜 아크를 발생시키는 등 안전사고의 위험도 높았다.
In addition, when the motor is driven, there is a high risk of a safety accident, such as generating arc due to non-uniformity of the driving force, causing the movable contactor 10 to suddenly rotate while generating a contact shock.

본 발명은 상술한 바와 같은 종래 기술상의 제반 문제점을 감안하여 이를 해결하고자 창출된 것으로, 접촉충격을 최소화시키면서 유압구동기를 이용하여 유압과 전동을 겸용 사용이 가능하므로 동작불량없이 원활하게 개폐동작 가능하도록 개선된 단로기 개폐장치를 제공함에 그 주된 목적이 있다.
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems in the prior art, and it is an object of the present invention to provide a hydraulic actuator capable of using both a hydraulic pressure and an electric motor using a hydraulic actuator while minimizing contact shock, And a main object thereof is to provide an improved breaker opening and closing apparatus.

본 발명은 상기한 목적을 달성하기 위한 수단으로, 일측 애자(12)에서 타측 애자(14)로 회전되는 가동접촉자(10)에 의해 단로 기능이 수행되는 단로기 개폐장치에 있어서; 상기 가동접촉자(10)의 하단 일부에는 'ㄱ' 형상의 연결바(60)가 일체로 고정되고; 상기 연결바(60)의 단부는 직선형 회전축(70)에 일체로 고정되며; 상기 직선형 회전축(70)의 양단은 베어링블럭(80)에 의해 회전가능하게 고정되고; 상기 회전축(70)의 일단에는 전동모터(50)가 결합되며; 상기 회전축(70)의 길이 일부에는 회전유도바(44)가 돌출되고; 상기 회전유도바(44)의 단부에는 실린더로드(42)가 힌지식으로 링크되며; 상기 실린더로드(42)는 유압실린더(40)가 연결되고; 상기 유압실린더(40)의 하단은 유동가능하게 고정측 상에 링크되며; 상기 가동접촉자(10)의 단부 일측면에는 완충하우징(100)이 더 고정되고; 상기 가동접촉자(10)가 회전되는 쪽인 타측 애자(14) 상에는 일정곡률을 갖고 휘어진 가이드래크(200)가 고정되며; 상기 완충하우징(100)의 바깥쪽 일측면에는 상기 가이드래크(200)와 치결합가능한 피니언기어(110)가 축고정되고; 상기 완충하우징(100) 내부에는 상기 피니언기어(110)와 동축을 이룬 내부제1기어(120)가 마련되며; 상기 내부제1기어(120)는 내부제2기어(130)와 치결합되고; 상기 내부제1,2기어(120,130)는 격벽(W)에 의해 챔버(140)와 구획된 채 분리되며; 상기 챔버(140)는 상기 격벽(W)에 형성된 제1연통공(150)을 통해 상기 내부제1,2기어(120,130)가 설치된 공간과 통하도록 구성되고; 상기 챔버(140) 및 내부제1,2기어(120,130)들이 설치된 공간에는 오일이 채워지며; 상기 챔버(140) 쪽의 입구가 넓고 내부제1,2기어(120,130) 설치공간 쪽 출구가 좁은 제2연통공(160)이 더 형성되고; 상기 챔버(140)에는 오일 충전구(170)가 더 구비되어 오일을 보충할 수 있도록 구성된 것을 특징으로 하는 단로기 개폐장치를 제공한다.In order to achieve the above object, according to the present invention, there is provided a breaker opening / closing apparatus in which a disconnecting function is performed by a movable contactor (10) which is rotated by a second insulator (14) in one insulator (12) Shaped connection bar 60 is integrally fixed to a lower end portion of the movable contact 10; The end of the connecting bar (60) is integrally fixed to a linear rotary shaft (70); Both ends of the linear rotary shaft (70) are rotatably fixed by a bearing block (80); An electric motor (50) is coupled to one end of the rotating shaft (70); A rotation induction bar 44 protrudes from a part of the length of the rotation shaft 70; A cylinder rod 42 is hingedly connected to an end of the rotation induction bar 44; The cylinder rod (42) is connected to a hydraulic cylinder (40); The lower end of the hydraulic cylinder 40 is fluidically linked on the fixed side; A buffer housing (100) is further fixed on one side surface of the end of the movable contact (10); A guide rack 200 having a predetermined curvature is fixed on the other insulator 14, which is the side on which the movable contact 10 is rotated; A pinion gear 110, which can be engaged with the guide rack 200, is fixed to an outer side surface of the buffer housing 100; An internal first gear 120 coaxial with the pinion gear 110 is provided in the buffer housing 100; The inner first gear 120 is meshed with the inner second gear 130; The internal first and second gears 120 and 130 are partitioned from the chamber 140 by the partition W, The chamber 140 is configured to communicate with a space in which the first and second gears 120 and 130 are installed through a first communication hole 150 formed in the partition W, The space in which the chamber 140 and the first and second gears 120 and 130 are installed is filled with oil. A second communication hole 160 having an inlet at the side of the chamber 140 and a narrow outlet at a side of the first and second gears 120 and 130 is formed; Wherein the chamber (140) is further provided with an oil filling port (170) to replenish the oil.

이때, 상기 제1연통공(150)은 입구가 넓고 출구가 좁게 형성되어 압을 크게 받을 경우 관류속도가 느려지게 하여 충격 완화기능을 갖도록 구성된 것에도 그 특징이 있다.
At this time, the first communication hole 150 has a wide inlet and narrow outlet, and is characterized in that it has a shock-absorbing function by slowing the perfusion rate when the pressure is increased.

본 발명에 따르면, 유압과 전동을 겸용 사용이 가능하므로 동작불량없이 원활하게 단로기 개폐동작이 가능한 효과를 얻을 수 있다.
According to the present invention, it is possible to use both the hydraulic pressure and the electric power, so that an effect that the disconnector opening and closing operation can be performed smoothly without malfunction can be obtained.

도 1은 종래 기술에 따른 단로기의 일 예를 보인 예시도이다.
도 2는 본 발명에 따른 단로기 개폐장치의 구성을 보인 모식도이다.
도 3은 본 발명에 따른 단로기 개폐장치를 구성하는 요부 단면도이다.1 is an exemplary view showing an example of a conventional disconnecting switch.
2 is a schematic view showing a configuration of a disconnecting switch opening / closing device according to the present invention.
Fig. 3 is a cross-sectional view of the main portion constituting the disconnecting switch device according to the present invention.

이하에서는, 첨부도면을 참고하여 본 발명에 따른 바람직한 실시예를 보다 상세하게 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명 설명에 앞서, 이하의 특정한 구조 내지 기능적 설명들은 단지 본 발명의 개념에 따른 실시예를 설명하기 위한 목적으로 예시된 것으로, 본 발명의 개념에 따른 실시예들은 다양한 형태로 실시될 수 있으며, 본 명세서에 설명된 실시예들에 한정되는 것으로 해석되어서는 아니된다.Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

또한, 본 발명의 개념에 따른 실시예는 다양한 변경을 가할 수 있고 여러 가지 형태를 가질 수 있으므로, 특정 실시예들은 도면에 예시하고 본 명세서에 상세하게 설명하고자 한다. 그러나, 이는 본 발명의 개념에 따른 실시예들을 특정한 개시 형태에 한정하려는 것이 아니며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변경물, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다.In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

도 2에 도시된 바와 같이, 본 발명에 따른 단로기 개폐장치는 가동접촉자(10)를 회전구동시키는 방식이 유압실린더(40)와 전동모터(50)를 겸용하여 사용할 수 있도록 구성된 것에 특징이 있다.As shown in FIG. 2, the disconnector switching device according to the present invention is characterized in that the method of rotationally driving the movable contactor 10 is configured to use both the hydraulic cylinder 40 and the electric motor 50.

즉, 기존에는 전동모터(50)만을 사용하였기 때문에 동작 불능 또는 동작 불량의 문제가 야기되었지만, 본 발명에서는 유압실린더(40)의 유압에 의한 강한 힘을 부가함으로써 동작불능이나 동작불량의 문제를 일소시키도록 구성된다.In the present invention, since the electric motor 50 is used solely, there arises a problem of inoperability or malfunction. However, in the present invention, by adding strong force by the hydraulic pressure of the hydraulic cylinder 40, .

특히, 본 발명에 따른 단로기 개폐장치는 다수의 단로기를 동시 개폐 사용할 수 있도록 구성될 수 있다.Particularly, the disconnector switching apparatus according to the present invention can be configured so that a plurality of disconnectors can be simultaneously opened and closed.

이를 위해, 가동접촉자(10)는 애자(12) 상에 회전가능하게 축고정되어 있고, 상기 가동접촉자(10)의 하단 일부에는 대략 'ㄱ' 형상의 연결바(60)가 힌지 형태로 링크된다.To this end, the movable contactor 10 is rotatably fixed on the insulator 12, and a substantially 'a' shaped connecting bar 60 is hingedly connected to a lower end portion of the movable contactor 10 .

또한, 상기 연결바(60)의 단부는 직선형 회전축(70)에 일체로 고정된다.The end of the connecting bar 60 is integrally fixed to the linear rotary shaft 70.

그리고, 상기 직선형 회전축(70)의 양단은 베어링블럭(80)에 의해 회전가능하게 고정된다.Both ends of the linear rotary shaft (70) are rotatably fixed by a bearing block (80).

아울러, 상기 회전축(70)의 일단에는 전동모터(50)가 결합되고, 상기 회전축(70)의 길이 일부에는 회전유도바(44)가 돌출되며, 상기 회전유도바(44)의 단부에는 실린더로드(42)가 힌지식으로 링크되고, 상기 실린더로드(42)는 유압실린더(40)에 연결되며, 상기 유압실린더(40)의 하단은 유동가능하게 고정부재(미도시, 고정프레임 등이 될 수 있음) 상에 링크된다.An electric motor 50 is coupled to one end of the rotation shaft 70 and a rotation induction bar 44 protrudes from a part of the length of the rotation shaft 70. At an end of the rotation induction bar 44, The cylinder rod 42 is connected to the hydraulic cylinder 40 and the lower end of the hydraulic cylinder 40 is fixed to a fixed member Quot;).

그리하여, 전동모터(50)가 시계방향으로 회전되면서 동시에 유압실린더(40)가 전진하면 상기 회전축(70)은 시계방향으로 회전되게 되는데, 이 경우 실린더로드(42)가 미는 힘에 의해 회전유도바(44)가 밀리면서 상기 회전축(70)의 회전력을 더욱 크게 하여 준다.When the electric motor 50 rotates clockwise and simultaneously the hydraulic cylinder 40 advances, the rotary shaft 70 is rotated in the clockwise direction. In this case, due to the pushing force of the cylinder rod 42, The rotational force of the rotary shaft 70 is further increased.

이때, 상기 유압실린더(40)는 하단이 유동가능하게 링크되어 있으므로 회전축(70)을 회전시킬 때 유압실린더(40)도 링크된 하단을 기점으로 회전유동되기 때문에 상기 회전축(70)을 회전시키는데 전혀 무리가 없다.Since the lower end of the hydraulic cylinder 40 is linked to the hydraulic cylinder 40 at this time, the hydraulic cylinder 40 also rotates at the lower end of the link when the rotary shaft 70 is rotated. Therefore, There is no difficulty.

그러면, 전동모터(50)와 유압실린더(40)를 동시 구동시킬 수 있는데, 동시 구동되더라도 양자간의 간섭없이 동일방향으로 회전축(70)을 회전시킬 수 있게 된다.Thus, the electric motor 50 and the hydraulic cylinder 40 can be simultaneously driven. Even if the electric motor 50 and the hydraulic cylinder 40 are simultaneously driven, the rotary shaft 70 can be rotated in the same direction without interfering with each other.

이 경우, 상기 회전축(70)의 회전반경은 일정각도 내로 제한되어야 하는데, 그렇지 않고 360°회전하게 되면 유압실린더(40)의 연결부분이 파손되기 때문이다.In this case, the rotation radius of the rotation shaft 70 should be limited to a certain angle. Otherwise, the rotation of the rotation shaft 70 may cause the connection portion of the hydraulic cylinder 40 to be broken.

따라서, 상기 회전축(70)의 회전반경은 상기 실린더로드(42)의 스트로크 내여야 하며, 스트로크는 조절가능하므로 충분한 힘을 발휘할 수 있고, 이에 부합되도록 상기 전동모터(50)는 스텝모터(Step Motor)를 사용해야 한다.Therefore, the rotation radius of the rotary shaft 70 must be within the stroke of the cylinder rod 42. Since the stroke is adjustable, the rotary motor 70 can exert a sufficient force, and the electric motor 50 is driven by a step motor ) Should be used.

때문에, 노후화에 따라 가동접촉자(10)가 다소 고착되어 있더라도 강한 힘으로 밀어내기 때문에 원활하게 회전시킬 수 있게 된다.Therefore, even if the movable contactor 10 is somewhat stuck due to aging, it can be smoothly rotated because it is pushed out with a strong force.

이에 더하여, 도 3의 예시와 같이, 상기 가동접촉자(10)의 단부 일측면에는 완충하우징(100)이 더 고정되고, 가동접촉자(10)가 회전되는 쪽인 타측 애자(14) 상에는 일정곡률을 갖고 휘어진 가이드래크(200)가 고정된다.3, a buffer housing 100 is further fixed to one side surface of the end portion of the movable contactor 10 and a predetermined curvature is formed on the other insulator 14, which is the side on which the movable contactor 10 is rotated The bent guide rack 200 is fixed.

이때, 상기 완충하우징(100)의 바깥쪽 일측면에는 상기 가이드래크(200)와 치결합가능한 피니언기어(110)가 축고정되며, 상기 완충하우징(100) 내부에는 상기 피니언기어(110)와 동축을 이룬 내부제1기어(120)가 마련된다.At this time, a pinion gear 110, which can be engaged with the guide rack 200, is fixed to one outer side surface of the buffer housing 100, and the pinion gear 110 and the coaxial The first internal gear 120 is provided.

또한, 상기 내부제1기어(120)는 내부제2기어(130)와 치결합되며, 이들 내부제1,2기어(120,130)는 격벽(W)에 의해 챔버(140)와 구획된 채 분리된다.The inner first gear 120 is meshed with the inner second gear 130 and the inner first and second gears 120 and 130 are separated from the chamber 140 by the partition W .

아울러, 상기 챔버(140)는 상기 격벽(W)에 형성된 제1연통공(150)을 통해 상기 내부제1,2기어(120,130)가 설치된 공간과 통하도록 구성된다.The chamber 140 is configured to communicate with a space provided with the first and second gears 120 and 130 through a first communication hole 150 formed in the partition wall W. [

그리고, 상기 챔버(140) 및 기어들이 설치된 공간에는 오일이 채워지고, 상기 오일은 상기 제1연통공(150)을 통해 챔버(140) 쪽으로 이동가능한데, 제1연통공(150)은 입구가 넓고 출구가 좁게 형성되어 압을 크게 받을 경우 관류속도가 느려지게 하여 충격 완화기능을 갖도록 구성된다.The space where the chamber 140 and the gears are installed is filled with oil and the oil can be moved toward the chamber 140 through the first communication hole 150. The first communication hole 150 has a wide entrance If the outlet is narrowly formed and the pressure is increased, the perfusion rate is slowed to provide a shock-absorbing function.

뿐만 아니라, 일정시간이 흐르면 압이 자연스럽게 해소되도록 하기 위해 상기 챔버(140) 쪽의 입구가 넓고 기어설치공간 쪽 출구가 좁은 제2연통공(160)이 더 형성된다.In addition, a second communication hole 160 having an inlet at the side of the chamber 140 and a narrow outlet at the gear installation space is further formed to allow the pressure to be naturally dissipated when a predetermined time passes.

또한, 상기 챔버(140)에는 오일 충전구(170)가 더 구비되어 오일을 보충할 수 있도록 구성된다.In addition, the chamber 140 is further provided with an oil filling port 170 to supplement the oil.

그리하여, 가동접촉자(10)가 회전하면서 타측 애자(14) 쪽으로 폴딩될 때 상기 피니언기어(110)가 가이드래크(200)와 접촉되면서 회전하게 되고, 이는 곧 내부제1,2기어(120,130)를 동시 회전시키므로 완충하우징(100) 내부에서는 오일이 급격히 유동하게 된다.Thus, when the movable contactor 10 rotates and is folded toward the other insulator 14, the pinion gear 110 rotates in contact with the guide rack 200, which rotates the first and second gears 120 and 130 The oil is suddenly flowed in the buffer housing 100.

동시에, 오일은 빠져나갈 곳이 없으므로 결국 제1연통공(150)으로 몰리게 되고, 그 순간 압이 차면서 상기 완충하우징(100)은 상기 가이드래크(200)를 따라 천천히 이동하게 된다. 즉, 회전속도가 확 줄어들면서 완속되게 된다.At the same time, since the oil does not have a place to escape, it eventually rushes to the first communication hole 150, and the buffer housing 100 slowly moves along the guide rack 200 as the pressure is increased. That is, the rotation speed is reduced and the speed is gradually reduced.

그 상태로 서서히 이동하면서 가동접촉자(10)는 타측 애자(14)의 단자에 충격없이 부드럽게 접속되게 되므로 아크 발생이 억제된다.The movable contactor 10 is smoothly connected to the terminal of the other insulator 14 without impact, so that arc generation is suppressed.

아울러, 일정시간이 경과하면 완충하우징(100) 내부의 압은 자연스럽게 해소된다.In addition, when a predetermined time has elapsed, the pressure inside the shock absorbing housing 100 is naturally relieved.

이와 같이, 본 발명은 가동접촉자(10)의 회전이동시 접속충격도 흡수할 수 있는 구조를 갖춤으로써 보다 안전하고 원활한 개폐동작이 가능하게 된다.
As described above, the present invention has a structure capable of absorbing connection shock during the rotation of the movable contact 10, thereby making it possible to perform safer and more smooth opening and closing operations.

100: 완충하우징 200: 가이드래크100: buffer housing 200: guide rack

Claims (2)

삭제delete 일측 애자(12)에서 타측 애자(14)로 회전되는 가동접촉자(10)에 의해 단로 기능이 수행되는 단로기 개폐장치에 있어서;
상기 가동접촉자(10)의 하단 일부에는 'ㄱ' 형상의 연결바(60)가 힌지 형태로 링크되고;
상기 연결바(60)의 단부는 직선형 회전축(70)에 일체로 고정되며;
상기 직선형 회전축(70)의 양단은 베어링블럭(80)에 의해 회전가능하게 고정되고;
상기 회전축(70)의 일단에는 전동모터(50)가 결합되며;
상기 회전축(70)의 길이 일부에는 회전유도바(44)가 일체로 돌출되고;
상기 회전유도바(44)의 단부에는 실린더로드(42)가 힌지식으로 링크되며;
상기 실린더로드(42)는 유압실린더(40)에 연결되고;
상기 유압실린더(40)의 하단은 설치장소의 고정부재 상에 회전유동 가능하게 링크되며;
상기 가동접촉자(10)의 단부 일측면에는 완충하우징(100)이 더 고정되고;
상기 가동접촉자(10)가 회전되는 쪽인 타측 애자(14) 상에는 일정곡률을 갖고 휘어진 가이드래크(200)가 고정되며;
상기 완충하우징(100)의 바깥쪽 일측면에는 상기 가이드래크(200)와 치결합가능한 피니언기어(110)가 축고정되고;
상기 완충하우징(100) 내부에는 상기 피니언기어(110)와 동축을 이룬 내부제1기어(120)가 마련되며;
상기 내부제1기어(120)는 내부제2기어(130)와 치결합되고;
상기 내부제1,2기어(120,130)는 격벽(W)에 의해 챔버(140)와 구획된 채 분리되며;
상기 챔버(140)는 상기 격벽(W)에 형성된 제1연통공(150)을 통해 상기 내부제1,2기어(120,130)가 설치된 공간과 통하도록 구성되고;
상기 챔버(140) 및 내부제1,2기어(120,130)들이 설치된 공간에는 오일이 채워지며;
상기 챔버(140) 쪽의 입구가 넓고 내부제1,2기어(120,130) 설치공간 쪽 출구가 좁은 제2연통공(160)이 더 형성되고;
상기 챔버(140)에는 오일 충전구(170)가 더 구비되어 오일을 보충할 수 있도록 구성되며;
상기 제1연통공(150)은 입구가 넓고 출구가 좁게 형성되어 압을 크게 받을 경우 관류속도가 느려지게 하여 충격 완화기능을 갖도록 구성된 것을 특징으로 하는 단로기 개폐장치.1. A disconnecting switch opening / closing apparatus in which a disconnecting function is performed by a movable contactor (10) which is rotated from a first insulator (12) to a second insulator (14);
Shaped connection bar 60 is hingedly connected to a lower end portion of the movable contact 10;
The end of the connecting bar (60) is integrally fixed to a linear rotary shaft (70);
Both ends of the linear rotary shaft (70) are rotatably fixed by a bearing block (80);
An electric motor (50) is coupled to one end of the rotating shaft (70);
A rotation guide bar (44) is integrally projected on a part of the length of the rotation shaft (70);
A cylinder rod 42 is hingedly connected to an end of the rotation induction bar 44;
The cylinder rod 42 is connected to the hydraulic cylinder 40;
The lower end of the hydraulic cylinder 40 is rotatably and fluidically linked on a fixing member at an installation site;
A buffer housing (100) is further fixed on one side surface of the end of the movable contact (10);
A guide rack 200 having a predetermined curvature is fixed on the other insulator 14, which is the side on which the movable contact 10 is rotated;
A pinion gear 110, which can be engaged with the guide rack 200, is fixed to an outer side surface of the buffer housing 100;
An internal first gear 120 coaxial with the pinion gear 110 is provided in the buffer housing 100;
The inner first gear 120 is meshed with the inner second gear 130;
The internal first and second gears 120 and 130 are partitioned from the chamber 140 by the partition W,
The chamber 140 is configured to communicate with a space in which the first and second gears 120 and 130 are installed through a first communication hole 150 formed in the partition W,
The space in which the chamber 140 and the first and second gears 120 and 130 are installed is filled with oil.
A second communication hole 160 having an inlet at the side of the chamber 140 and a narrow outlet at a side of the first and second gears 120 and 130 is formed;
The chamber 140 is further provided with an oil filling port 170 so as to be able to replenish the oil.
Wherein the first communication hole (150) is configured to have a wide inlet and a narrow outlet and to have a shock-absorbing function by slowing a perfusion rate when a pressure is greatly increased.
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Cited By (2)

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US9646776B1 (en) 2015-12-09 2017-05-09 DTR Electric Corporation On-off lever of disconnecting switch for power distribution line
KR102309561B1 (en) 2020-12-08 2021-10-06 신우전기제조(주) A structure to cushion the repulsive force of the disconnector movable lod

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CN107170627A (en) * 2017-06-26 2017-09-15 中车株洲电力机车有限公司 A kind of disconnecting switch and its insulator rotating device
CN107946120B (en) * 2017-12-24 2019-06-28 浙江柳晶整流器有限公司 A kind of low-voltage knife switch for avoiding that electric shock accidents occurs
CN114038635A (en) * 2021-11-01 2022-02-11 浙江尚达电气有限公司 An integrally formed static insulator and isolating switch including the static insulator
CN117766326B (en) * 2024-01-11 2024-07-26 河北华能源电力设备有限公司 Closed outdoor high-voltage isolating switch

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KR101075539B1 (en) 2010-05-18 2011-10-20 윤석중 Three Position Disconnector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9646776B1 (en) 2015-12-09 2017-05-09 DTR Electric Corporation On-off lever of disconnecting switch for power distribution line
KR102309561B1 (en) 2020-12-08 2021-10-06 신우전기제조(주) A structure to cushion the repulsive force of the disconnector movable lod

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