KR20180007217A - drive assembly of valve - Google Patents

drive assembly of valve Download PDF

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KR20180007217A
KR20180007217A KR1020160088177A KR20160088177A KR20180007217A KR 20180007217 A KR20180007217 A KR 20180007217A KR 1020160088177 A KR1020160088177 A KR 1020160088177A KR 20160088177 A KR20160088177 A KR 20160088177A KR 20180007217 A KR20180007217 A KR 20180007217A
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South Korea
Prior art keywords
shaft
lifting shaft
valve
housing part
coupled
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KR1020160088177A
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Korean (ko)
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KR101848858B1 (en
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이재홍
박승선
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(유)성문
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • F16K31/504—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating means being rotable, rising, and having internal threads which co-operate with threads on the outside of the valve body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K41/00—Spindle sealings
    • F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Lift Valve (AREA)

Abstract

A valve drive assembly for preventing leakage of the present invention comprises: a first housing portion; a lifting shaft lifted in a state of not rotating with respect to the first housing portion; an operation shaft screw-coupled to an upper end of the lifting shaft, and installed on the first housing portion to be able to rotate such that the lifting shaft is lifted during a rotation thereof; a bellows coupled to an end of the lifting shaft of the first housing portion to surround the lifting shaft so as to prevent a fluid from being leaked through an outer circumferential surface of the lifting shaft and a support portion of the first housing portion that supports the lifting shaft; a second housing portion coupled to the first housing portion to surround the bellows and the lifting shaft; and a valve drive shaft spirally coupled to the lifting shaft by penetrating the second housing portion in the same direction as the lifting shaft, and rotated forward and backward when the lifting shaft is lifted.

Description

누설방지용 밸브 구동조립체{drive assembly of valve} BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

본 발명은 밸브의 구동조립체에 관한 것으로, 더 상세하게는 밸브의 구동축을 통하여 유체가 누설되는 것을 방지할 수 있는 누설방지용 밸브구동 조립체에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive assembly of a valve, and more particularly, to a leakage preventing valve drive assembly capable of preventing fluid from leaking through a drive shaft of the valve.

일반적으로 밸브는 관로나 용기에 설치하여 유체의 유량, 압력 등을 제어하는 장치로서, 그 목적에 따라 종류가 다양하다. Generally, a valve is installed in a pipe or a vessel to control the flow rate, pressure, etc. of the fluid.

현재 널리 사용되는 밸브는 게이트 밸브, 글로브 밸브, 체크 밸브, 버터플라이 밸브, 플러그 밸브, 볼 밸브 등이 있으며 이 밸브들 중에서도 가장 널리 사용되는 밸브의 종류는 볼 밸브, 게이트 밸브와 글로브 밸브 또는 버터플라이밸브이다. The most widely used valves are gate valves, globe valves, check valves, butterfly valves, plug valves, and ball valves. The most widely used types of valves are ball valves, gate valves and globe valves, Valve.

게이트 밸브는 개폐용 밸브의 대표적인 밸브로서 디스크가 시트면과 마찰면서 열리거나 닫히게 되어 유체의 흐름을 제어하는데 제어의 주목적은 유로의 차단과 개방이다. 최적의 설치조건은 수평 배관 상에 스템이 수직으로 설치되어야 운전성 및 구조적 건전성이 높아진다. 그렇지 않은 경우 수명이 짧아지게 되고 분해 및 수리가 어렵다는 단점이 있다. 글로브 밸브는 유로의 차단 또는 유량의 조절용으로 사용되며, 유량제어의 가장 많이 사용되고 있는 밸브 형식이다.  The gate valve is a representative valve of the opening / closing valve, and the disk is opened or closed while rubbing against the seat surface, so that the flow of the fluid is controlled. Optimal installation conditions require vertical installation of the stem on the horizontal piping to improve the drivability and structural integrity. Otherwise, the life is shortened and disassembly and repair are difficult. The globe valve is used for shutting off the flow path or controlling the flow rate, and is the most widely used valve type for flow control.

상기 밸브들은 관로에 설치되어 유체의 제어 시 유체가 구동을 위한 축과 밸브본체의 사이로 누설되는 문제점이 있다. 이러한 유체의 누설은 유체가 독성을 가지고 있거나 위험물인 경우, 안전사고의 위험이 있다. There is a problem that the above-mentioned valves are installed in the pipelines and the fluid is leaked between the shaft for driving and the valve body when the fluid is controlled. Leakage of this fluid is a safety hazard if the fluid is toxic or dangerous.

대한민국등록실용신안 20-0199715호에는 밀봉력을 향상시킨 티이형 글로브밸브가 개시되어 있다. 상기의 밀봉력을 향상시킨 티이형 글로브 밸브는 제1,제2플랜지부를 갖는 몸체와, 상기 몸체의 내부 몸체공간부에 설치되어 관로를 차단하는 바디스템과, 상기 바디스템의 외주면에 설치되어 관로를 통하여 이동하는 유체가 상부로 유입하는 것을 차단하는 벨로우즈 시일를 구비한 구성이 게시되어 있다. Korean Utility Model Registration No. 20-0199715 discloses a tee type glove valve with improved sealing ability. The diaphragm type glove valve having improved sealing performance includes a body having first and second flange portions, a body stem disposed in an inner body space portion of the body to block the duct, And a bellows seal for blocking fluid flowing through the channel from flowing upward.

그러나, 상기의 밀봉력을 향상시킨 티이형 글로브 밸브는 벨로우즈가 유체와 직접적으로 접촉하는 공간에 설치되어 있어 유체에 의해 부식되거나, 유체가 벨로우즈의 표면에 달라붙어 원활한 작동을 어렵게 하는 문제점이 있으며, 부식으로 인해 벨로우즈에 틈이 생기게 되면 유체가 외부로 유출될 수 있는 단점이 있다.  However, the tee-shaped globe valve having the above-mentioned sealing force is installed in a space in which the bellows is in direct contact with the fluid, so that it is corroded by the fluid or the fluid sticks to the surface of the bellows, If there is a gap in the bellows due to corrosion, the fluid may leak out.

대한민국 공개특허 2011-0125538호에는 벨로우즈밸브가 게시되어 있다. 게시된 벨로우즈 밸브는 타측에 각각 형성된 유체가 유입되는 유입구와 상기 유체가 배출되는 배출구와 내부공간을 유입공간과 배출공간으로 구획하는 차단벽 및 상기 차단벽에 형성되고 상기 유체가 유입공간으로부터 배출공간을 향하여 통과할 수 있는 홀을 구비한 밸브본체와; 상기 유입공간에서 승,하강하여 상기 홀을 개폐하는 디스크 및 상기 디스크의 상부에 결합된 주축과; 상기 디스크가 상기 홀을 폐쇄하는 하부위치와 상기 홀을 개방되게 하는 상부위치 사이에서 상기 주축을 승,하강시키는 구동기구와; 상기 유입공간 내에 상기 주축의 외측면을 감싸도록 형성된 벨로우즈와; 상기 벨로우즈의 외측면을 감싸도록 설치되고, 상기 유입공간을 상기 유체가 통과하는 유동공간과 상기 유체가 통과하지 않는 차단공간으로 구획하여 상기 유체가 상기 벨로우즈에 접촉되는 것을 차단하는 차단부;를 구비한다.Korean Patent Publication No. 2011-0125538 discloses a bellows valve. The posted bellows valve includes an inlet port through which the fluid formed on the other side flows, a discharge port through which the fluid is discharged, a blocking wall partitioning the inner space into an inlet space and a discharge space, A valve body having a hole capable of passing through the valve body; A disk for opening and closing the hole by moving up and down in the inflow space; a main shaft coupled to an upper portion of the disk; A drive mechanism for raising and lowering the main shaft between a lower position at which the disc closes the hole and an upper position at which the hole is opened; A bellows formed in the inflow space to surround the outer surface of the main shaft; And a blocking portion that is provided to surround the outer surface of the bellows and divides the inflow space into a fluid space through which the fluid passes and a blocking space through which the fluid does not pass to block the fluid from contacting the bellows do.

상술한 바와 같은 종래의 벨로우즈 밸브는 차단부가 설치되어 있다하여도 벨로우즈가 유체에 노출되게 되고, 회전력에 의해 디스크가 승강되는 구조를 가지고있으므로 벨로우즈에 회전방향으로의 외력이 작용하게 된다. 따라서 벨로우즈가 쉽게 손상되는 문제점이 있으며, 구동을 위한 주축과 밸브본체 사이의 기밀유지유닛이 손상되는 경우, 유체가 외부로 누출되는 문제점이 있다. The conventional bellows valve as described above has a structure in which the bellows is exposed to the fluid even when the blocking portion is provided, and the disk is lifted and lowered by the rotational force, so that an external force acts on the bellows in the rotational direction. Therefore, there is a problem that the bellows is easily damaged, and when the airtightness maintaining unit between the main shaft and the valve body for driving is damaged, there is a problem that the fluid leaks to the outside.

대한민국등록실용신안 20-0199715호.Korea Registered Utility Model No. 20-0199715. 대한민국 공개특허 2011-0125538호Korean Public Patent No. 2011-0125538

본 발명의 해결하고자 하는 기술적 과제는 조작을 위한 구동축의 회전력이 직접적으로 벨로우즈에 전달되는 것을 방지하여 벨로우즈가 회전력에 의해 손상되는 것을 방지할 수 있으며, 하우징에 구동축이 조작되는 영역과 벨로우즈가 설치되며 밸브를 조작하기 위한 밸구동축이 설치되는 영역을 분할하여 유체의 누설을 최소화 할 수 있는 누설방지용 밸브 구동조립체를 제공함에 있다.SUMMARY OF THE INVENTION The present invention has been made in an effort to solve the above problems, and it is an object of the present invention to provide a bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type bellows type And a valve drive assembly for preventing leakage by dividing a region where a valve drive shaft for operating a valve is provided to minimize leakage of fluid.

상기 기술적 과제를 해결하기 위한 본 발명의 누설방지용 밸브 구동조립체는 제1하우징부와, 상기 제1하우징부에 대해 회전하지 않은 상태에서 승강되는 승강샤프트와, 상기 승강샤프트의 상단부에 나사결합되며, 상기 제 1하우징부에 회전가능하게 설치되어 회전 시 승강샤프트가 승강되도록 하는 조작축과,According to an aspect of the present invention, there is provided a leakage preventing valve driving assembly including a first housing part, a lifting shaft lifted and lowered with respect to the first housing part, An operating shaft rotatably installed in the first housing portion so that the lifting shaft is lifted and lowered during rotation;

상기 제1하우징부의 상기 승강샤프트의 단부에 결합되어 상기 승강샤프트를 감싸 유체가 승강샤프트의 외주면과 이 승강샤프트를 지지하는 제1하우징부의 지지부위를 통하여 유출되는 것을 방지하기 위한 벨로우즈와, A bellows coupled to an end of the lifting shaft of the first housing part to prevent the fluid from flowing out through a supporting part of a first housing part supporting the lifting shaft and an outer circumferential surface of the lifting shaft by wrapping the lifting shaft,

상기 제1하우징부와 결합되어 상기 벨로우즈와 승강샤프트를 감싸는 제 2하우징부와,A second housing part coupled to the first housing part and surrounding the bellows and the lifting shaft,

상기 승강샤프트와 동축방향으로 상기 제 2하우징부를 관통하여 상기 승강샤프트와 나선결합되며 상기 승강샤프트의 승강 시 정역회전되는 밸브구동축을 구비한다. And a valve driving shaft which is coupled with the elevating shaft through the second housing part in a direction coaxial with the elevating shaft and which is normally and reversely rotated when the elevating shaft is moved up and down.

본 발명에 있어서, 상기 제1하우징부에 대해 승강샤프트의 승강 가능한 결합은 상기 승강샤프트의 외주면에 스프라인이 형성되고, 상기 승강샤프트가 결합될 수 있도록 상기 승강샤프트의 스플라인이 결합되는 스플라인홈이 형성되며 상기 제1하우징부에 고정되는 스플라인부쉬를 구비한다. According to the present invention, the liftable coupling of the lifting shaft with respect to the first housing part is provided with a spline on the outer peripheral surface of the lifting shaft, and a spline groove to which the lifting shaft is coupled so that the lifting shaft can be engaged, And a spline bush fixed to the first housing part.

상기 승강샤프트에 대한 밸브구동축의 결합구성은 상기 밸브구동축의 외주면에 제1볼스크류부가 형성되고, 상기 승강샤프트의 길이 방향으로 하단부로부터 소정의 깊이로 중공부가 형성되며, 상기 승강샤프트의 단부에는 상기 밸브구동축의 제1볼스크류부와 결합되는 제 2볼스크류부가 형성된 볼스크류부쉬가 고정된다.Wherein a first ball screw portion is formed on an outer circumferential surface of the valve driving shaft, a hollow portion is formed at a predetermined depth from a lower end portion in the longitudinal direction of the elevating shaft, And a ball screw bush having a second ball screw portion to be engaged with the first ball screw portion of the valve drive shaft is fixed.

본 발명의 누설방지용 밸브 구동조립체는 조작부의 조작력이 직접적으로 밸브부재에 작용하는 것을 방지할 수 있으며, 조작축이 설치되는 영역과 밸브구동축이 설치되는 영역의 공간을 구획하고, 기밀을 위한 벨로우즈에 회전조작력이 작용하는 것을 방지하여 내구성을 향상시킬 수 있다. The leakage preventing valve drive assembly of the present invention is capable of preventing the operating force of the operating portion from directly acting on the valve member and dividing the space in which the operating shaft is installed and the space in which the valve driving shaft is installed, It is possible to prevent the rotational operation force from acting and improve the durability.

그리고 유해한 가스 또는 위험물을 이송시키기 위한 관로에 설치되는 밸브의 조작부에서 발생되는 누설을 근본적으로 해결할 수 있으며, 나아가서는 위해가스의 누출방지에 따른 신뢰성을 향상시킬 수 있다. In addition, it is possible to fundamentally solve the leakage generated at the operating portion of the valve installed in the pipeline for transporting the harmful gas or the dangerous substance, and further, the reliability according to the prevention of the leakage of the hazardous gas can be improved.

도 1은 본 발명에 따른 누설방지용 밸브 구동조립체가 밸브에 장착된 상태를 나타내 보인 단면도,
도 2은 본 발명에 따른 누설방지용 밸브 구동조립체의 분리사시도,
도 3은 본 발명에 따른 누설방지용 밸브 구동조립체의 단면도. FIG. 1 is a sectional view showing a state in which a valve-driving valve assembly according to the present invention is mounted on a valve,
FIG. 2 is an exploded perspective view of a valve-driving valve drive assembly according to the present invention,
3 is a cross-sectional view of a valve actuation valve assembly according to the present invention;

본 발명에 따른 밸브의 구동조립체는 볼 밸브, 버터플라이밸브 등과 같이 밸브부재가 회전에 의해 조작되는 각종 밸브유닛에 적용될 수 있는 것으로, 일 실시예를 도 1 내지 도 3에 나타내 보였다.The drive assembly of the valve according to the present invention can be applied to various valve units such as a ball valve, a butterfly valve and the like in which the valve member is operated by rotation, and one embodiment is shown in Figs.

도면을 참조하면, 본 발명에 따른 누설방지용 밸브 구동조립체(10)는 각종 밸브에 장착되어 사용되는 것으로, 제1조작공간(21)이 형성된 제1하우징부(25)와, 상기 제1하우징부(25)에 설치되어 회전하지 않은 상태에서 승강되는 승강샤프트(30)와, 상기 승강샤프트(30)의 상단부측에 나사결합되며, 상기 제 1하우징부(25)에 회전가능하게 설치되는 조작축(40)을 구비한다. 상기 제 1하우징부(25)의 승강 가능하게 설치되는 승강샤프트(30)는 상기 승강샤프트(30)의 외주면에 스플라인(31)이 형성되고, 상기 제1하우징부(25)의 하부측에는 상기 승강샤프트(30)의 외주면에 형성된 스클라인(31)과 결합되는 스플라인홈(35)가 형성된 스플라인부쉬(36)이 설치된다. 상기 제1하우징부(25)에 설치되는 스플라인부쉬(36)는 키에 의해 고정되어 회전하지 않은 구조를 가지며, 제1하우징부(25)와 스플라인부쉬(36)의 사이에는 스냅링이 설치되어 제1하우징부(25)로부터 분리되지 않은 구조를 가진다. 이때에 상기 승강샤프트(30)의 상단부는 제 1조작공간(21)에 위치된다. 그리고 상기 조작축(40)은 제 1하우징부(25)에 회전가능하게 설치되는데, 상기 승강샤프트(30)와 나사결합 된 조작축(40)의 상부가 제1하우징부(25)에 회전가능하게 설치되며 제1하우징부(25)로부터 상부측으로 돌출되어 밸브의 조작을 위해 회전시킬 수 있는 구조를 가진다. 상기 조작축(40) 노출된 단부에는 조작을 위해 핸들, 액튜에이터 등이 설치될 수 있다. 상기와 같은 구성은 조작축(40)이 정, 역회전됨에 따라 승강샤프트(30)가 제 1하우징부(25)에 대해 승강되는 구조를 가진다. Referring to the drawings, the leakage prevention valve driving assembly 10 according to the present invention is mounted on various valves and includes a first housing part 25 formed with a first operation space 21, A lifting shaft 30 mounted on the lifting shaft 25 and being lifted and lowered in a state that the lifting shaft 30 is not rotated; (40). The lifting shaft 30 of the first housing part 25 is provided with a spline 31 on an outer circumferential surface of the lifting shaft 30 and a lower end of the lifting shaft 30 There is provided a spline bushing 36 in which a spline groove 35 is formed to be engaged with a spline 31 formed on the outer circumferential surface of the shaft 30. The spline bush 36 is fixed to the first housing part 25 by a key and is not rotated. A snap ring is provided between the first housing part 25 and the spline bush 36, 1 housing part 25 as shown in Fig. At this time, the upper end of the lifting shaft 30 is located in the first operating space 21. [ The operating shaft 40 is rotatably installed in the first housing part 25. The upper part of the operating shaft 40 screwed to the lifting shaft 30 is rotatably mounted on the first housing part 25, And protrudes upward from the first housing part 25 to be rotatable for operation of the valve. A handle, an actuator, or the like may be provided on the exposed end of the operation shaft 40 for operation. The above structure has a structure in which the lifting shaft 30 is lifted and lowered with respect to the first housing part 25 as the operating shaft 40 is rotated forward and reverse.

그리고 상기 제 1하우징부(25)의 하부측과 상기 승강샤프트(30)의 하단부측은 벨로우즈(50)의 양단부가 결합되어 승강샤프트(30)를 감싸게 된다. 상기 제1하우징부(25)와 벨로우즈(50) 상단부의 결합은 상기 승강샤프트(30)의 주위에 인출되는 보스부(26)가 연장되도록 형성되고, 이 보스부(26)에 벨로우즈(50)가 결합되어 이루어진다. 상기 벨로우즈(50)의 하단부는 승강샤프트(30)의 단부측에 평활하게 형성된 부위에 결합됨으로써 상기 벨로우즈(50)에 의해 승강샤프트(30)의 외주면을 감싸게 된다. Both ends of the bellows 50 are engaged with the lower portion of the first housing part 25 and the lower end of the lifting shaft 30 to enclose the lifting shaft 30. The first housing part 25 and the upper end of the bellows 50 are formed so that the boss part 26 extended to the periphery of the lifting shaft 30 extends and the bellows 50 is attached to the boss part 26. [ . The lower end of the bellows 50 is coupled to a portion smoothly formed on the end side of the lifting shaft 30 so that the bellows 50 covers the outer peripheral surface of the lifting shaft 30 by the bellows 50.

한편, 제 1하우징부(25)의 하부측에는 상기 벨로우즈(50)에 의해 외주면이 감싸여진 승강샤프트(30)가 위치되는 제 2조작공간(27)을 가지는 제 2하우징부(28)가 결합된다. 그리고 상기 하우징부의 하면을 관통하여 상기 승강샤프트(30)의 하단부에 상기 승강샤프트(30)의 승강 또는 하강 시에 제 2하우징부(28)에 대해 정역회전 될 수 있도록 나사 결합되는 밸브구동축(60)을 구비한다. A second housing part 28 having a second operating space 27 in which the lifting shaft 30 with the outer circumferential surface of which is surrounded by the bellows 50 is coupled to the lower side of the first housing part 25 . The valve driving shaft 60 is screwed to the lower end of the lifting shaft 30 through the lower surface of the housing part so as to be rotated in the forward and reverse directions with respect to the second housing part 28 when the lifting shaft 30 is lifted or lowered ).

상기 승강샤프트(30)에 대한 밸브구동축(60)의 나사 결합의 구성은 상기 밸브구동축(60)의 외주면에 제1볼스크류부(61)가 형성되고, 상기 승강샤프트(30)의 의 길이 방향으로 하단부로부터 소정의 깊이로 중공부가 형성되며, 상기 승강샤프트의 단부에는 상기 밸브구동축(60)의 제1볼스크류부(61)와 결합되는 제 2볼스크류부(62)가 형성된 볼스크류부쉬(63)가 고정된다. The valve driving shaft 60 is screwed to the lifting shaft 30 such that a first ball screw portion 61 is formed on an outer circumferential surface of the valve driving shaft 60, A hollow portion is formed at a predetermined depth from a lower end of the valve driving shaft 60 and a ball screw bushing 62 having a second ball screw portion 62 engaged with the first ball screw portion 61 of the valve driving shaft 60 63 are fixed.

상기 밸브구동축(60)는 상기 승강샤프트(30)의 하강 시 위치 이동되지 않고 회전될 수 있도록 제 2하우징부(28)에 회전가능하게 지지되거나 도 1에 도시된 바와 같이 밸브의 결합 시 밸브부재에 지지되어 승강되지 않으면서 회전될 수 있도록 함이 바람직하다. 상기 제 1,2하우징부(25)(28)은 단일의 몸체로 이루어질 수도 있다. The valve driving shaft 60 is rotatably supported on the second housing part 28 so that the valve driving shaft 60 can be rotated without being moved when the lifting shaft 30 is lowered, So that it can be rotated without being lifted or lowered. The first and second housing parts 25 and 28 may be formed as a single body.

상술한 바와 같이 구성된 본 발명에 따른 누설방지용 밸브 구동조립체는 도 1에 도시된 바와 같이 밸브본체 즉, 볼 밸브, 버터플라이밸브 등의 밸브본체(100, 도 1참조)에 장착되어 밸브부재(110)와 밸브구동축(60)을 연결한다.1, the leakage preventing valve drive assembly according to the present invention constructed as described above is mounted on a valve body 100 (see FIG. 1) such as a ball valve, a butterfly valve, And the valve drive shaft 60 are connected to each other.

이 상태에서 밸브를 조작, 즉, 밸브부재(110)를 회전시켜 관로에 설치되는 밸브를 열기 위해서는 상기 조작축(40)을 반시계방향을 회전시킨다. 이와 같이하면, 조작축(40)과 나사결합 된 승강샤프트(30)가 하강하게 되고, 이와 결합된 밸브구동축(60)이 회전하게 된다. 즉, 밸브구동축(60)의 외주면에는 제1볼스크류부(60)가 설치되고, 승강샤프트(30)의 하단부에 결합된 볼스크류부재(63)에는 제 2볼스크류부(62)가 형성되어 있으므로 승강샤프트(30)가 하강함에 따라 밸브구동축(60)은 회전하게 된다. 따라서 이와 연결된 밸브부재(110)가 회전되어 밸브를 열게된다.In this state, the operation shaft 40 is rotated counterclockwise in order to operate the valve, that is, to open the valve installed in the pipe by rotating the valve member 110. In this way, the lift shaft 30 screwed to the operation shaft 40 is lowered, and the valve drive shaft 60 coupled thereto is rotated. That is, the first ball screw portion 60 is provided on the outer peripheral surface of the valve driving shaft 60, and the second ball screw portion 62 is formed on the ball screw member 63 coupled to the lower end portion of the elevating shaft 30 The valve drive shaft 60 rotates as the lift shaft 30 is lowered. Accordingly, the valve member 110 connected thereto is rotated to open the valve.

그리고 밸브부재(110)를 회전시켜 관로에 설치되는 밸브를 닫기 위해서는 상기 조작축(40)을 시계방향을 회전시킨다. 이와 같이하면, 조작축(40)과 나사결합 된 승강샤프트(30)가 상승하게 되고, 이와 결합된 밸브구동축(60)이 회전하게 됨으로서 밸브부재를 하게 된다. 즉, 밸브구동축(60)의 외주면에는 제1볼스크류부(60)가 설치되고, 승강샤프트(30)의 하단부에 결합된 볼스크류부재(63)에는 제 2볼스크류부(62)가 형성되어 있으므로 승강샤프트(30)가 하강함에 따라 밸브구동축(60)은 회전하게 됨으로써 이와 연결된 밸브부재(110)에 의해 밸브가 닫히게 된다.In order to close the valve installed in the pipe by rotating the valve member 110, the operation shaft 40 is rotated clockwise. In this way, the lift shaft 30 screwed to the operation shaft 40 is raised, and the valve drive shaft 60 coupled to the lift shaft 30 rotates, thereby forming a valve member. That is, the first ball screw portion 60 is provided on the outer circumferential surface of the valve driving shaft 60, and the second ball screw portion 62 is formed on the ball screw member 63 coupled to the lower end portion of the elevating shaft 30 Therefore, as the lifting shaft 30 is lowered, the valve driving shaft 60 rotates, so that the valve is closed by the valve member 110 connected thereto.

상술한 바와 같이 작동되는 밸브의 구동조립체(10)는 조작축(40)의 회전을 이용하여 승강샤프트를 승강시켜 이와 결합된 밸브구동축(60)을 회전시켜 밸브를 조작할 수 있으므로 기밀유지를 위한 벨로우즈(50)에 밸브의 조작을 위한 회전력이 작용하는 것을 방지할 수 있으며, 나아가서는 벨로우즈(50)가 손상되는 것을 방지할 수 있다. 특히, 조작을 위한 조작축(40)이 설치되는 제 1조작공간과 제 2조작공간 즉, 승강샤프트(30)의 하강부와 벨로우즈(50)가 위치되는 제 2조작공간이 분리되고, 벨로우즈(50)에 의해 제2조작공간(27)의 가스가 제 1조작공간(21)로 유입되는 것이 완전히 차단되어 있으므로 유해가스가 외부로 누출되는 것을 근본적으로 방지할 수 있다. The driving assembly 10 of the valve operated as described above can operate the valve by rotating the valve driving shaft 60 by moving the lifting shaft up and down using the rotation of the operating shaft 40, It is possible to prevent the rotational force for operating the valve from acting on the bellows 50, and furthermore, the bellows 50 can be prevented from being damaged. Particularly, the first operation space in which the operation shaft 40 for operation is installed and the second operation space in which the descending portion of the elevation shaft 30 and the second operation space in which the bellows 50 are located are separated, 50 can completely prevent the gas in the second operation space 27 from flowing into the first operation space 21, so that the leakage of the harmful gas to the outside can be fundamentally prevented.

본 발명은 도면에 도시된 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 사람이라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호 범위는 첨부된 등록 청구 범위의 기술적 사상에 의해 정해져야 할 것이다. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

본 발명의 누설방지용 밸브 구동조립체는 각종 밸브의 조작, 산업기계장치, 중대형 선박등의 밸브 및 기계장치에 널리 적용 가능하다. INDUSTRIAL APPLICABILITY The leakage preventing valve drive assembly of the present invention is widely applicable to various valve operations, industrial machinery, valves and mechanical devices such as medium and large ships.

Claims (3)

제1하우징부와, 상기 제1하우징부에 대해 회전하지 않은 상태에서 승강되는 승강샤프트와, 상기 승강샤프트의 상단부에 나사결합되며, 상기 제 1하우징부에 회전가능하게 설치되어 회전 시 승강샤프트가 승강되도록 하는 조작축과,
상기 제1하우징부의 상기 승강샤프트의 단부에 결합되어 상기 승강샤프트를 감싸 유체가 승강샤프트의 외주면과 이 승강샤프트를 지지하는 제1하우징부의 지지부위를 통하여 유출되는 것을 방지하기 위한 벨로우즈와,
상기 제1하우징부와 결합되어 상기 벨로우즈와 승강샤프트를 감싸는 제 2하우징부와,
상기 승강샤프트와 동축방향으로 상기 제 2하우징부를 관통하여 상기 승강샤프트와 나선결합되며 상기 승강샤프트의 승강 시 정역회전되는 밸브구동축을 구비한 것을 특징으로 하는 누설방지용 밸브 구동조립체.A first housing part, a lifting shaft that is lifted and lowered in a state that the lifting shaft is not rotated with respect to the first housing part, and a lifting shaft which is screwed to an upper end of the lifting shaft, rotatably installed in the first housing part, An operation shaft to be moved up and down,
A bellows coupled to an end of the lifting shaft of the first housing part to prevent the fluid from flowing out through a supporting part of a first housing part supporting the lifting shaft and an outer circumferential surface of the lifting shaft by wrapping the lifting shaft,
A second housing part coupled to the first housing part and surrounding the bellows and the lifting shaft,
And a valve driving shaft which is coupled to the elevating shaft through the second housing part in a direction coaxial with the elevating shaft and which is normally and rotatably rotated when the elevating shaft is moved up and down. 제 1항에 있어서,
상기 제1하우징부에 대해 승강샤프트의 승강 가능한 결합은 상기 승강샤프트의 외주면에 스프라인이 형성되고, 상기 승강샤프트이 결합될 수 있도록 상기 승강샤프트의 스플라인과 결합되는 스플라인홈이 형성되며 상기 제1하우징부에 고정되는 스플라인부쉬를 구비한 것을 특징으로 하는 누설방지용 밸브 구동조립체. The method according to claim 1,
Wherein a spindle is formed on an outer circumferential surface of the lifting shaft with respect to the first housing part and a spline groove is formed to be coupled with a spline of the lifting shaft so that the lifting shaft can be engaged, And a spline bush fixed to the valve unit. 제 1항에 있어서,
상기 승강샤프트에 대한 밸브구동축의 구성은 상기 밸브구동축의 외주면에 제1볼스크류부가 형성되고, 상기 승강샤프트의 길이 방향으로 하단부로부터 소정의 깊이로 중공부가 형성되며, 상기 승강샤프트의 단부에는 상기 밸브구동축의 제1볼스크류부와 결합되는 제 2볼스크류부가 형성된 볼스크류부쉬가 고정된 것을 특징으로 하는 누설방지용 밸브 구동조립체.
The method according to claim 1,
The valve driving shaft for the elevating shaft includes a first ball screw portion formed on an outer circumferential surface of the valve driving shaft, a hollow portion formed at a predetermined depth from a lower end portion in the longitudinal direction of the elevating shaft, And a ball screw bush having a second ball screw portion coupled to the first ball screw portion of the drive shaft is fixed.
KR1020160088177A 2016-07-12 2016-07-12 drive assembly of valve KR101848858B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112963645A (en) * 2021-03-17 2021-06-15 西南石油大学 Pipeline corrosion measuring device
KR102381961B1 (en) * 2021-04-26 2022-04-04 겟에스씨알 주식회사 3-way Air Sealing Damper

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060064982A1 (en) * 2004-09-30 2006-03-30 Mitten Manufacturing Valve for dynamic control of fuel flow rate in gas turbine power plant, power plant and components thereof employing such valve, and method of constructing such valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112963645A (en) * 2021-03-17 2021-06-15 西南石油大学 Pipeline corrosion measuring device
CN112963645B (en) * 2021-03-17 2022-02-01 西南石油大学 Pipeline corrosion measuring device
KR102381961B1 (en) * 2021-04-26 2022-04-04 겟에스씨알 주식회사 3-way Air Sealing Damper

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