KR100496990B1 - a sealing unit for a rotary device - Google Patents
a sealing unit for a rotary device Download PDFInfo
- Publication number
- KR100496990B1 KR100496990B1 KR10-2003-0023001A KR20030023001A KR100496990B1 KR 100496990 B1 KR100496990 B1 KR 100496990B1 KR 20030023001 A KR20030023001 A KR 20030023001A KR 100496990 B1 KR100496990 B1 KR 100496990B1
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- South Korea
- Prior art keywords
- rotating shaft
- housing
- seating groove
- flange
- shaft
- Prior art date
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Classifications
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/002—Sealings comprising at least two sealings in succession
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/908—Seal for use in rotating and reciprocating arrangement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Sealing Of Bearings (AREA)
Abstract
본 발명은 펌프와 같은 기계요소에서 회전축의 외주연에 설치되는 회전축용 밀폐장치에 관한 것으로, 다수의 밀폐부재(3,5,11)가 삽입되는 안착홈(24,26,44,64,66)이 내주연에 다수 형성되고, 상기 안착홈(24,26,44,64,66)의 중심부에는 회전축(100)이 관통되는 축공(22,42,62)이 형성되며, 냉각수 이송로(94)가 측벽의 내부에 형성된 하우징(2)(4)(6)이 다수로 연설되어 구성된 하우징부(200)와; 상기 하우징부(200)의 후단에 부착되며, 상기 냉각수 이송로(94)와 연통되는 냉각수 입출구(83,84)가 내부에 형성되고, 중심부에 회전축(100)이 관통되는 축공(82,92)이 형성되어 구성된 플랜지부(300)와; 내측에 회전축(100)이 삽입되는 중공(72)이 구비되며, 상기 하우징부(200)와 플랜지부(300)의 축공(22,42,62,82,92)에 끼움결합되는 슬리브(7)와; 씰링면이 상기 슬리브(7)의 외주연에 접지된 채 상기 안착홈(24,26,44,64,66)에 안착되는 다수의 밀폐부재(3,5,11)와; 상기 하우징부(200)의 전단에 체결되어 슬리브(7)의 이탈을 방지하도록 한 칼라부(14)를; 포함하여 이루어짐으로써 밀폐성이 향상되고, 구조가 간결하게 하였다.The present invention relates to a sealing device for a rotating shaft which is installed on the outer periphery of the rotating shaft in a mechanical element such as a pump, the mounting groove (24, 26, 44, 64, 66) into which a plurality of sealing members (3, 5, 11) is inserted ) Are formed on the inner circumference, and the shaft holes 22, 42, and 62 through which the rotating shaft 100 penetrates are formed in the center of the seating grooves 24, 26, 44, 64, and 66, and the cooling water transport path 94 A housing portion 200 having a plurality of housings 2, 4, 6 formed inside the side walls; Axial holes 82 and 92 attached to the rear end of the housing part 200 and having coolant inlets and outlets 83 and 84 communicating with the coolant transport path 94 are formed therein, and the rotating shaft 100 penetrates through the center thereof. A flange portion 300 formed and formed; A hollow 72 having a rotating shaft 100 inserted therein is provided, and a sleeve 7 fitted into the shaft holes 22, 42, 62, 82, and 92 of the housing part 200 and the flange part 300. Wow; A plurality of sealing members (3, 5, 11) seated in the seating grooves (24, 26, 44, 64, 66) with a sealing surface grounded at the outer circumference of the sleeve (7); A collar portion 14 coupled to the front end of the housing portion 200 to prevent the sleeve 7 from being separated; By including, the sealing property improved and the structure was concise.
Description
본 발명은 회전축용 밀폐장치에 관한 것으로, 더욱 상세하게는 펌프와 같은 기계요소에서 회전축의 외주연에 설치되어 이송되는 유체의 누설을 방지할 수 있으며, 구조를 간결하게 하여 점유공간을 최소화시킬 수 있고, 특히 윤활유의 공급이 필요없는 무급유 방식의 회전축용 밀폐장치에 관한 것이다.The present invention relates to a sealing device for a rotating shaft, and more particularly, it is possible to prevent the leakage of fluid to be transported and installed on the outer periphery of the rotating shaft in the mechanical element, such as a pump, and to simplify the structure to minimize the occupied space In particular, the present invention relates to a non-lubricating type sealing device for a rotating shaft that does not require lubricating oil supply.
일반적으로 기어박스, 화학펌프, 교반기, 믹서, 변속기, 건조기, 콤프레샤와 같은 회전축을 갖는 기계요소들은 그 회전축이 회전됨에 의해 타고 유체가 누설되는 것을 방지할 수 있도록 회전축 상에 별도의 씰링장치(일명 메카니컬 씰)가 필연적으로 설치된다.In general, mechanical elements with rotating shafts, such as gearboxes, chemical pumps, agitators, mixers, transmissions, dryers, and compressors, have a separate sealing device on the rotating shaft to prevent leakage of fluids by rotating the rotating shaft. Mechanical seal) is necessarily installed.
즉, 도 5는 종래 메카니컬 씰의 구조를 도시한 것으로, That is, Figure 5 shows the structure of a conventional mechanical seal,
회전축(1')에 다수의 볼트에 의해 고정지지되는 회전링체(2')와; 상기 회전링체(2')의 안내공(2a')에 슬라이드 가능하게 안내축(3a')이 일단에 형성되고, 상기 안내축(3a')의 사이 사이에 스프링(3b')이 설치되며, 또 다른 일단에 고정돌기(3c')가 형성된 탄성지지체(3')와; 상기 탄성지지체(3')의 고정돌기(3c')와 대응되는 고정홈(4a')이 형성되고 그 내주면에 오링(4b')이 설치됨과 동시에 경질링(4c')이 그 일단으로 다소 돌출되게 내접되는 밀폐링체(4')와; 상기 회전축(1')과 아이들되면서 그 일단이 밀폐링체(4')의 경질링(4c')과 면접밀착되고 회전축(1')으로부터 독립된 고정부(미도시)에 고정지지되는 고정링체(5');등이 하우징(도시되지 않음) 내에 설치되어 이루어진다.A rotating ring body 2 'fixedly supported by the plurality of bolts on the rotating shaft 1'; A guide shaft 3a 'is formed at one end so as to be slidable in the guide hole 2a' of the rotary ring body 2 ', and a spring 3b' is installed between the guide shafts 3a '. An elastic support 3 'having a fixing protrusion 3c' formed at another end thereof; A fixing groove 4a 'corresponding to the fixing protrusion 3c' of the elastic support 3 'is formed, and an O-ring 4b' is installed on the inner circumferential surface thereof, and at the same time, the hard ring 4c 'slightly protrudes to one end thereof. A sealing ring body 4 'which is inscribed to be inclined; Fixing ring body 5 which is in contact with the rotating shaft 1 'and one end thereof is in close contact with the hard ring 4c' of the sealing ring body 4 'and fixed to a fixing part (not shown) independent from the rotating shaft 1'. A lamp is installed in a housing (not shown).
즉, 회전축(1')에 탄성지지체(3')와 결합된 회전링체(2')가 볼트에 의해 고정지지된 상태에서 탄성지지체(3')의 고정돌기(3c')에 고정홈(4a')이 결합되게 밀폐링체(4')를 설치하여 회전축(1')과 함께 회전되도록 하는 한편, 고정부에 고정링체(5')의 일단이 밀폐링체(4')의 경질링(4c')에 면접촉되게 설치하여 고정링체(5')가 회전축(1')으로부터 아이들링(idling)되게 하므로서 회전축(1)을 타고 흐르는 유체를 밀폐링체(4')의 오링(4b')으로 일차 차단한 다음, 나머지의 누출되는 유체는 상호 면접 밀착된 경질링(4c')과 고정링체(5')를 이용하여 차단하게 된다.That is, the fixing groove 4a in the fixing projection 3c 'of the elastic support 3' in a state in which the rotating ring 2 'coupled to the elastic support 3' is fixed to the rotating shaft 1 'by a bolt. ') Is coupled so that the sealing ring body 4' is rotated together with the rotating shaft 1 'while one end of the fixing ring body 5' is fixed to the hard ring 4c 'of the sealing ring body 4'. ) So that the fixed ring body 5 'is idling from the rotating shaft 1' so that the fluid flowing through the rotating shaft 1 is blocked by the O-ring 4b 'of the sealing ring body 4'. Then, the remaining leaking fluid is blocked using the rigid ring 4c 'and the stationary ring body 5' closely contacted with each other.
그러나, 종래의 메카니컬 씰은 밀폐링체(4') 및 탄성지지체(3')와 결합된 회전링체(2')가 회전축(1')에 의해 고속으로 회전되는 반면, 상기 밀폐링체(4')의 경질링(4c')과 면접되는 고정링체(5')는 고정된 상태를 유지하고 있으므로 특히 무급유 상태에서는 경질링(4c')과 고정링체(5')의 마찰계수가 매우 높아져서 이들 사이에 마모가 극심해짐은 물론이고 이로 인하여 경질링(4c')과 고정링체(5') 사이의 밀폐력이 크게 저하되어 그 효율성이 현저하게 낮아지는 문제점이 발생되었다.However, in the conventional mechanical seal, the sealing ring 4 'and the rotating ring 2' coupled with the elastic support 3 'are rotated at high speed by the rotating shaft 1', while the sealing ring 4 ' Since the fixed ring body 5 'interviewed with the hard ring 4c' is maintained in a fixed state, the friction coefficient between the hard ring 4c 'and the fixed ring body 5' becomes very high, especially in the non-lubricated state. Not only is the wear aggravated, but this causes a problem that the sealing force between the hard ring 4c 'and the fixed ring body 5' is greatly lowered and the efficiency is significantly lowered.
또한, 상기 밀폐장치의 구조가 매우 복잡다단하여 이의 가공이 어려운 동시에 밀폐장치의 조립 및 보수가 매우 힘들며, 고무재질의 오링(4b)이 화학물질에 매우 취약하여 고속, 고온, 고압의 적용에 한계가 있다는 등의 많은 문제점이 있었다.In addition, the structure of the sealing device is very complicated, so that its processing is difficult and at the same time the assembly and repair of the sealing device is very difficult, the rubber O-ring (4b) is very vulnerable to chemicals to limit the application of high speed, high temperature, high pressure There were many problems such as that there are.
특히, 압력과 진공상태하에서 누설을 방지하기 위한 밀폐장치는 구조가 더욱 복잡해지므로 제작공수가 많이 소요되는 단점이 있다.In particular, the sealing device for preventing leakage under pressure and vacuum conditions has a disadvantage in that a lot of manufacturing labor is required because the structure becomes more complicated.
또한, 상기 회전축(1')의 고속회전시 이에 접촉된 경질링(4c')과 고정링체(5')에서 발생되는 마찰열을 냉각시키기 위해 그 일측에 냉각자켓을 설치하였으나 발열점과 이격거리가 커서 실질적인 냉각효과를 거두기 어려워 수명이 단축되는 문제점이 있었다.In addition, in order to cool the frictional heat generated from the hard ring 4c 'and the fixed ring body 5' contacted with the high speed rotation of the rotary shaft 1 ', a cooling jacket is installed on one side thereof, but the heating point and the separation distance are It was difficult to achieve a substantial cooling effect, so there was a problem that the life is shortened.
특히, 메카니컬 씰은 면 접촉에 의한 유막 형성으로 유체의 누설을 방지하기 때문에 윤활제가 필수적이므로, 별도의 윤활제 공급시스템을 구비하여 윤활제를 공급하여야 한다. In particular, since the mechanical seal is a lubricant because it is necessary to prevent the leakage of the fluid by forming the oil film by the surface contact, a separate lubricant supply system should be provided to supply the lubricant.
이는 초정밀도가 요구되는 반도체 장비에 있어서 수율 저하의 주원인이 되며, 윤활제가 내부로 침투될 수 있는 문제점을 항시 내포하고 있고, 실제로 이와 같은 현상으로 종래의 메카니컬 씰로 구성된 메카니컬 씰 유닛은 사용 기간이 매우 짧은 경우가 발생되어진다. This is the main cause of yield reduction in semiconductor equipment that requires high precision, and it always contains the problem that the lubricant can penetrate inside. As a result, a mechanical seal unit composed of a conventional mechanical seal has a very long service life. A short case occurs.
더욱이 면접촉에 의한 밀폐 방법의 종래 기술은 초미립자를 사용하는 슬러리의 침투를 방지하지 못하는 문제점이 있어 메카니컬 씰 유닛의 수명이 점점 단축되는 원인이 된다. In addition, the prior art of the sealing method by the surface contact has a problem that does not prevent the penetration of the slurry using the ultra-fine particles, causing the life of the mechanical seal unit is gradually shortened.
본 발명은 상기 종래 기술의 문제점을 해소하기 위해 안출된 것으로, 밀폐성을 크게 향상시키는 동시에 가공 및 조립을 용이하게 하고, 이의 보수를 쉽게하는 한편, 고속, 고온, 고압 및 진공상태에서의 적용을 가능하게 하며, 냉각효율을 향상시켜서 내구성과 수명이 향상되도록 한 회전축용 밀폐장치를 제공하는데 그 목적이 있다The present invention has been made to solve the problems of the prior art, and greatly improves the sealability, at the same time facilitate the processing and assembly, easy to repair, and can be applied at high speed, high temperature, high pressure and vacuum conditions. The purpose of the present invention is to provide a sealing device for a rotating shaft that improves cooling efficiency and improves durability and lifespan.
또한, 본 발명은 환형의 지지체의 내주연에 만곡진 환형날개부를 일체로 성형시켜서 밀폐부재를 제작하고, 이 밀폐부재를 다수로 연설시킴으로써 밀폐력을 더욱 향상시킬 수 있게 하는데 다른 목적이 있다. In addition, the present invention has another object to make the sealing member by integrally forming the curved annular wing portion on the inner circumference of the annular support, and to further improve the sealing force by addressing the sealing member to a large number.
본 발명의 또다른 목적은 환형날개에 탄성을 띄는 보형물을 부착시켜서 된 밀폐부재를 더 추가하여 설치함으로써 밀폐력을 증대시킬 수 있게 하는 데 있다. It is still another object of the present invention to increase the sealing force by installing an additional sealing member by attaching an elastic prosthesis to the annular wing.
그리고, 상기 밀폐부재가 회전대상물에 대해 선접촉을 함으로써 마찰력을 최소화시켜서 윤활유의 공급이 필요없도록 하는데 그 목적이 있다. In addition, the sealing member is in line contact with the rotating object to minimize the friction force is to eliminate the need for the supply of lubricating oil.
상술한 목적을 해소하기 위해 본 발명은 The present invention to solve the above object
다수의 밀폐부재가 삽입되는 안착홈이 내주연에 다수 형성되고, 이 안착홈의 중심부에는 회전축이 관통되는 축공이 형성되며, 냉각수 이송로가 측벽의 내부에 형성된 하우징이 다수로 연설되어 구성된 하우징부와;A plurality of seating grooves into which a plurality of sealing members are inserted are formed at an inner circumference thereof, and a shaft hole through which a rotating shaft penetrates is formed in the center of the seating recess, and a housing part in which a cooling water transport path is formed in a plurality of housings is spoken. Wow;
상기 하우징부의 후단에 부착되며, 상기 냉각수 이송로와 연통되는 냉각수 입출구가 내부에 형성되고, 중심부에 회전축이 관통되는 축공이 형성되어 구성된 플랜지부와;A flange portion attached to a rear end of the housing portion, the cooling water inlet and outlet communicating with the cooling water transport path formed therein, and a shaft hole through which a rotating shaft penetrates is formed in a central portion thereof;
내측에 회전축이 삽입되는 중공이 구비되며, 상기 하우징부와 플랜지부의 축공에 끼움결합되는 슬리브와;A sleeve having a hollow in which a rotating shaft is inserted and fitted into the shaft hole of the housing portion and the flange portion;
씰링면이 상기 슬리브의 외주연에 접지된 채 상기 안착홈에 안착되는 다수의 밀폐부재와; A plurality of sealing members seated in the seating grooves with a sealing surface grounded at the outer circumference of the sleeve;
상기 하우징부의 전단에 체결되어 슬리브의 이탈을 방지하는 칼라부를; 포함하여 이루어짐을 특징으로 한다.A collar part which is fastened to a front end of the housing part to prevent the sleeve from being separated; It is characterized by including the.
이하 본 발명의 바람직한 실시예를 첨부된 도면을 토대로 상세하게 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
첨부된 도면 중에서 도 1은 본 발명에 따른 회전축용 밀폐장치에 대한 분해사시도이고, 도 2는 본 발명에 따른 회전축용 밀폐장치에 대한 결합된 단면도, 도 3은 도 2에서 A에 대한 확대 단면도이다.1 is an exploded perspective view of a sealing device for a rotating shaft according to the present invention, Figure 2 is a combined cross-sectional view of the sealing device for a rotating shaft according to the present invention, Figure 3 is an enlarged cross-sectional view of A in FIG. .
도 1 및 도 3에서 보이듯이, As shown in Figures 1 and 3,
상기 하우징부(200)는 기어박스, 각종 이송펌프와 같이 회전축(100)이 구비된 기계장치에 설치되는 것이며, 내측에 회전축(100)이 삽입되는 축공(22,42,62)을 갖는 원통체 형상의 제1 및 제2, 제3하우징(2)(4)(6)이 순차적으로 다단 연설된 후 장볼트(29)에 의해 체결 고정된 것이다.The housing part 200 is installed in a mechanical device equipped with a rotating shaft 100, such as a gear box and various transfer pumps, and has a cylindrical hole 22, 42, 62 in which the rotating shaft 100 is inserted. The first, second, and third housings 2, 4 and 6 of the shape are sequentially multistage and then fastened and fixed by the long bolts 29.
여기서, 상기 제1 및 제2, 제3하우징(2)(4)(6)의 내주연에는 중심부에 회전축(100)이 관통되는 축공(22,42,62)을 갖는 안착홈(24,26,44,41,46,66)이 다수로 형성된다. Here, the seating grooves 24, 26 having shaft holes 22, 42, and 62 through which the rotating shaft 100 penetrates through the inner circumference of the first, second, and third housings 2, 4, 6. , 44, 41, 46, 66 are formed in plural.
이를 좀더 자세히 살펴보면, 상기 제1하우징(2)은 내측에 슬리브(7)가 관통되는 축공(22)이 형성되고, 내주연에는 상기 축공(22)에 연접된 채 오일밀폐부재(3)가 삽입되는 제1안착홈(24)이 형성되어 있으며, 이 제1안착홈(24)의 후방에 베어링(18)이 삽입되는 제2안착홈(26)이 형성되어 있고, 측벽의 일측에는 상기 제2안착홈(26)과 연통되는 윤활유 주입구(28)가 형성되며, 측벽의 타측에는 장볼트(29)가 체결되는 제1체결공(27)이 다수로 형성된다.Looking at this in more detail, the first housing 2 is formed with a shaft hole 22 through which the sleeve 7 penetrates inside, and an oil sealing member 3 is inserted into the inner circumference while being connected to the shaft hole 22. The first seating groove 24 is formed, and the second seating groove 26 is formed in the rear of the first seating groove 24, the bearing 18 is inserted, the side of the second side A lubricating oil injection hole 28 communicating with the seating groove 26 is formed, and a plurality of first fastening holes 27 to which the long bolts 29 are fastened are formed at the other side of the side wall.
상기 제2하우징(4)은 내측에 회전축(100)이 관통하는 축공(42)이 형성된 원통체로써, 내주연 후방에 상기 제1안착홈(24)과 동일한 형상의 제4안착홈(41)이 형성되고, 그 상부에는 베어링(18)이 안착되는 제3안착홈(44)이 형성되며, 상기 제4안착홈(41)의 후방에 제3하우징(6)의 씰커버(61)가 삽입되는 제5안착홈(46)이 형성되어 있고, 측벽의 일측에는 상기 제3안착홈(44)과 연통되는 윤활유 배출구(48)가 형성되며, 측벽의 타측에는 장볼트(29)가 체결되는 제2체결공(47)이 다수로 형성된 채 상기 제1하우징(2)의 후단에 부착된 후 장볼트(29)에 의해 고정된다.The second housing 4 is a cylindrical body having a shaft hole 42 through which the rotating shaft 100 penetrates inside, and has a fourth seating groove 41 having the same shape as the first seating groove 24 at the rear of the inner circumference. Is formed, and a third seating groove 44 in which the bearing 18 is seated is formed at an upper portion thereof, and a seal cover 61 of the third housing 6 is inserted in the rear of the fourth seating groove 41. The fifth seating groove 46 is formed, and one side of the side wall is formed with a lubricating oil outlet 48 in communication with the third seating groove 44, and the other side of the side bolt is fastened to the long bolt 29 The two fastening holes 47 are attached to the rear end of the first housing 2 while being formed in plural, and then fixed by the long bolts 29.
그리고, 상기 제4안착홈(41)에 연통되는 누유확인공(64)이 일측에 형성됨으로써, 내부에서 발생되는 유체의 누설여부를 확인할 수 있도록 하였다. In addition, the oil leakage confirmation hole 64 communicating with the fourth seating groove 41 is formed at one side, so that it is possible to check whether or not the fluid generated inside is leaked.
상기 제3하우징(6)은 내측에 회전축(100)이 관통하는 축공(62)이 형성된 원통체로써, 전단에는 상기 제5안착홈(46)에 삽입되는 씰커버(61)가 나사결합되어 있고, 상기 축공(22)에 연접하는 내주연에는 제1 및 제2밀폐부재(5)(11)가 다수로 안착되는 제6안착홈(66)이 형성되어 있으며, 측벽의 일측에는 상기 제6안착홈(66)에 연통되는 냉각수 이송로(94)가 여러 갈래로 형성되어 있고, 측벽의 타측에는 상기 장볼트(29)가 체결되는 제3체결공(67)이 형성된 채 상기 제2하우징(4)의 후단에 부착된 후 장볼트(29)에 의해 고정된다.The third housing 6 is a cylindrical body having a shaft hole 62 through which the rotating shaft 100 penetrates inside, and a seal cover 61 inserted into the fifth seating groove 46 is screwed at the front end thereof. In the inner circumference connected to the shaft hole 22, sixth seating grooves 66 in which a plurality of first and second sealing members 5 and 11 are seated are formed, and the sixth seat is formed at one side of the side wall. The cooling water conveying path 94 communicating with the groove 66 is formed in several branches, and the second housing 4 is formed at the other side of the side wall with a third fastening hole 67 to which the long bolt 29 is fastened. After being attached to the rear end is fixed by a long bolt (29).
상기 플랜지부(300)는 제1플랜지(8)와 제2플랜지(9)가 나사결합에 의해 일체로 고정된 후, 회전축(100)의 외주연에 끼움결합된 채 상기 제3하우징(6)의 후단에 부착되어 하우징부(200)를 커버한다. The flange portion 300 is the first flange (8) and the second flange (9) is fixed integrally by screwing, then the third housing (6) while being fitted to the outer periphery of the rotary shaft 100 It is attached to the rear end of the cover the housing portion 200.
여기서, 상기 제1플랜지(8)는 내측에 상기 제3하우징(6)의 제6안착홈(66)과 동일한 직경의 제7안착홈(81)이 형성되고, 외측에는 냉각수 주입구(84)와 냉각수 배출구(83) 및 상기 장볼트(29)가 체결되는 제4체결공(88)과 다수의 제1나사공(89)이 형성된다.Here, the first flange 8 has a seventh seating groove 81 having the same diameter as the sixth seating groove 66 of the third housing 6 is formed on the inside, the cooling water injection hole 84 and the outside A fourth fastening hole 88 and a plurality of first screw holes 89 to which the cooling water discharge port 83 and the long bolt 29 are fastened are formed.
상기 제2플랜지(9)는 내측에 회전축(100)이 관통하는 축공(92)이 형성되고, 일측면에 상기 냉각수 주입구(84) 및 냉각수 배출구(83)와 연통되는 냉각수 이송로(94)가 형성되며, 일측에 상기 제1플랜지(8)의 제1나사공(89)에 대응하는 제2나사공(95)이 다수로 형성된다.The second flange 9 has a shaft hole 92 through which the rotating shaft 100 penetrates, and a coolant feed path 94 communicating with the coolant inlet 84 and the coolant outlet 83 on one side thereof. The second screw hole 95 corresponding to the first screw hole 89 of the first flange 8 is formed in one side.
상기 슬리브(7)는 상기 하우징부(200) 및 플랜지부(300)의 축공(22)에 끼움결합되는 외경을 가지며, 내측에 회전축(100)이 삽입되는 중공(72)이 구비된 원통체로써, 상기 하우징부(200)와 플랜지부(300)의 축공(22)을 관통하여 끼움결합된다.The sleeve 7 is a cylindrical body having an outer diameter that is fitted into the shaft hole 22 of the housing portion 200 and the flange portion 300, and the hollow 72 is inserted into the rotating shaft 100 therein. It is fitted through the shaft hole 22 of the housing 200 and the flange 300.
여기서 상기 중공(72)의 내주연에는 다수의 시일링(74)이 개재되어 밀폐력이 향상되도록 하고, 상기 중공(72)에 회전축(100)이 끼움결합된다.Here, the inner circumference of the hollow 72 is provided with a plurality of sealing rings 74 to improve the sealing force, the rotary shaft 100 is fitted to the hollow 72.
상기 밀폐부재(3,5,11)는 제1 및 제2하우징(2)(4)의 제1 및 제4안착홈(24)(41)에 개재되는 오일밀폐부재(3)와, 제3하우징(6)의 제6안착홈(66)에 개재되는 다수의 베이스링(10,12,13)과, 그 사이사이에 개재되는 제1 및 제2밀폐부재(5,11)를 포함하여 이루어진 것으로, 상기 다수의 밀폐부재(3,5,11)는 그 내주연의 씰링면이 슬리브(7)의 외주연에 접지되도록 하여 설치됨이 바람직하다.The sealing members 3, 5 and 11 are oil sealing members 3 interposed in the first and fourth seating grooves 24 and 41 of the first and second housings 2 and 4, and And a plurality of base rings 10, 12, 13 interposed between the sixth seating grooves 66 of the housing 6, and first and second sealing members 5, 11 interposed therebetween. Preferably, the plurality of sealing members 3, 5, and 11 are installed so that the sealing surface of the inner circumference thereof is grounded to the outer circumference of the sleeve 7.
이때, 상기 오일밀폐부재(3)와 제1 및 제2밀폐부재(5,11)의 재질은 PTFE＋카본, PTFE＋카본＋그라파이트, PTFE＋폴리이미드, PTFE＋폴리이미드＋그라파이트, PTFE＋폴리이미드＋카본 등의 약간의 탄성을 갖는 재질로 제조된다. At this time, the material of the oil sealing member 3 and the first and second sealing members (5, 11) is made of PTFE + carbon, PTFE + carbon + graphite, PTFE + polyimide, PTFE + polyimide + graphite, PTFE + polyimide + carbon It is made of a material with some elasticity.
여기서, 상기 오일밀폐부재(3)는 외부로부터 침투되는 먼지 및 오염 물질 등을 내부에 있는 윤활유와 접촉하지 못하도록 제1안착홈(24)에 개재되어 슬리브(7)의 외주연에 접지되는 것으로, 슬리브(7)의 치수보다 내경이 약간 작은 치수로 하여 밀폐력이 향상되도록 한다.Here, the oil sealing member 3 is interposed in the first seating groove 24 to be grounded on the outer periphery of the sleeve 7 so that dust and contaminants, etc., penetrated from the outside do not come into contact with the lubricating oil therein, The inner diameter is slightly smaller than that of the sleeve 7 so that the sealing force is improved.
상기 오일밀폐부재(3)는 단면이 대략 'ㄷ'형상인 원형링으로써, 하측 수평면의 외면에는 슬리브(7)의 외주연과 접지되도록 돌출된 씰링립(36)을 복수로 형성시키고, 하측 수평면의 내면에는 스프링(32)이 개재되며, 수직면과 상측 수평면의 내면에는 변형을 방지하기 위해 단면이 대략 '┏' 형상의 금속보형물(34)이 삽입되어 이루어진다.The oil sealing member 3 is a circular ring having a cross-sectional shape of approximately 'c', and a plurality of sealing lips 36 protruding from the outer circumference of the sleeve 7 and grounded on the outer surface of the lower horizontal surface are formed on the lower horizontal surface. The inner surface of the spring 32 is interposed, the inner surface of the vertical plane and the upper horizontal plane is made of a metal implant 34 of approximately '┏' shape is inserted into the cross section to prevent deformation.
따라서, 상기 스프링(32)의 장력에 의해 상기 씰링립(36)의 접지력이 더욱 향상될 수 있고, 상기 금속보형물(34)에 의해 그 형상이 유지될 수 있으므로 내구성과 수명이 향상된다.Accordingly, the holding force of the sealing lip 36 may be further improved by the tension of the spring 32, and the shape may be maintained by the metal implant 34, thereby improving durability and lifespan.
상기 제1밀폐부재(5)는 환형의 지지체(52)의 내주연에 일측으로 만곡된 환형날개부(54)가 형성된 것으로, 상기 제3하우징(6)의 제6안착홈(66)에 개재되어 상기 환형날개부(54)가 슬리브(7)의 외주연에 접지되게 설치됨으로써 유체의 누설이 방지될 수 있다. The first sealing member 5 has an annular wing portion 54 curved to one side at an inner circumference of the annular support body 52 and is interposed in the sixth seating groove 66 of the third housing 6. Thus, the annular wing portion 54 is installed to be grounded on the outer circumference of the sleeve 7 to prevent leakage of the fluid.
상기 제2밀폐부재(11)는 단면이 대략 'ㄷ'형상인 원형링으로써, 하측의 수평면의 외면에는 슬리브의 외주연과 접지되는 씰링면(110)이 형성되고, 내측에는 변형을 방지하기 위해 단면이 '⊂'형상의 보형물(112)이 삽입되어 이루어진 것으로, 후술하는 제2베이스링(12)의 내주연에 안착된다.The second sealing member 11 is a circular ring having a cross-section of approximately 'c' shape, the outer surface of the lower horizontal surface is formed with a sealing surface 110 which is grounded with the outer periphery of the sleeve, to prevent deformation inside The shape of the '112' shape cross section is inserted into, and is seated on the inner circumference of the second base ring 12 to be described later.
상기 제1, 제2, 제3베이스링(10)(12)(13)은 외주연에 상기 냉각수 이송로(94)와 연통되는 냉각홈(120)이 형성되고, 다수의 밀폐용 오링이 개재된 원형링 형상으로써, 제6안착홈(66)에 개재된 상기 제1밀폐부재(5)와 연접되게 개재됨으로써 제1밀폐부재(5)를 지지함과 동시에 냉각효과를 향상시킬 수 있다.The first, second, and third base rings 10, 12, 13 are formed on the outer circumference of the cooling groove 120 communicating with the cooling water transfer path 94, and a plurality of sealing O-rings are interposed therebetween. As a circular ring shape, it is interposed in contact with the first sealing member 5 interposed in the sixth seating groove 66, thereby supporting the first sealing member 5 and improving the cooling effect.
여기서, 상기 제2베이스링(12)은 그 내주연에 상기 제2밀폐부재(11)를 안착시킨다.Here, the second base ring 12 seats the second sealing member 11 at its inner circumference.
또한, 상기 제1밀폐부재(5)와 제2밀폐부재(11)는 필요에 따라 위치를 바꾸어서 개재시킬 수 있으며, 그 설치숫자도 하나 이상의 여러개로 변경하여서 설치될 수 있다.In addition, the first sealing member 5 and the second sealing member 11 may be interposed by changing the position as necessary, the installation number may be installed by changing one or more.
즉, 도 4에 도시된 바와 같이, 회전축의 양측에 진공상태가 되었을때를 대비하기 위해, 제1밀폐부재(5)의 환형날개부(54)와 제2밀폐부재(11)의 씰링면(110)이 마주보도록 설치함으로써 양측에서 가해지는 진공압에 의해 씰링면이 당겨지더라도 밀폐력이 유지될 수 있도록 설치할 수 있다. That is, as shown in Figure 4, in order to prepare when the vacuum state on both sides of the rotating shaft, the sealing surface of the annular blade portion 54 and the second sealing member 11 of the first sealing member (5) ( By installing the 110 facing each other, even if the sealing surface is pulled by the vacuum pressure applied from both sides can be installed so that the sealing force can be maintained.
이와 같이 구성된 본 발명의 결합관계를 설명하면 다음과 같다.Referring to the coupling relationship of the present invention configured as described above are as follows.
상기 제1하우징(2)의 제1안착홈(24)에 오일밀폐부재(3)를 개재시키고, 제2안착홈(26)에 베어링(18)을 개재시킨다. The oil sealing member 3 is interposed in the first seating groove 24 of the first housing 2, and the bearing 18 is interposed in the second seating groove 26.
상기 제2하우징(4)의 제3안착홈(44)에 베어링(18)을 개재시키고, 제4안착홈(41)에 오일밀폐부재(3)를 개재시킨다.The bearing 18 is interposed in the third seating groove 44 of the second housing 4, and the oil sealing member 3 is interposed in the fourth seating groove 41.
상기 제3하우징(6)의 제6안착홈(66)에 제1밀폐부재(5)와 제1베이스링(10), 제2밀폐부재(11), 제2베이스링(12) 및 제3베이스링(13)을 순차로 삽입하여 개재시킨다.The first sealing member 5, the first base ring 10, the second sealing member 11, the second base ring 12 and the third in the sixth seating groove 66 of the third housing 6. The base ring 13 is sequentially inserted and interposed.
한편, 상기 제1플랜지(8)의 후면에 제2플랜지(9)를 연접시키고 제1나사공(89)과 제2나사공(95)을 일치시켜 고정볼트(130)로 체결 고정시켜서 플랜지부(300)의 조립을 완성한다.Meanwhile, the second flange 9 is connected to the rear surface of the first flange 8, and the first screw hole 89 and the second screw hole 95 coincide with the fixing bolt 130 to fix and fasten the flange portion. Complete the assembly of 300.
이렇게 조립이 완료된 상기 제1하우징(2)의 후단에 제2하우징(4)과 제3하우징(6) 및 플랜지부(300)를 연접시킨 후 각각의 체결공(27,47,67,88)에 장볼트(29)를 체결하여 나사결합시켜서 일체로 고정되도록 하고, 제1하우징(2)의 전단에는 V-링(15)과 칼라부(14)를 체결시킴으로써 본 발명에 따른 회전축용 밀폐장치의 조립이 완료된다.After the assembly is completed, the second housing 4 and the third housing 6 and the flange portion 300 are connected to the rear end of the first housing 2, and then each of the fastening holes 27, 47, 67 and 88. By fastening the long bolt 29 to the screw to be fixed integrally, the front end of the first housing (2) by tightening the V-ring 15 and the collar 14 by the sealing device for the rotating shaft according to the present invention Assembly is completed.
이와같이 조립이 완료된 후 상기 슬리브(7)의 내측 중공(72)에 회전축(100)이 끼워지도록 하여 설치시킨 후 상기 냉각수 주입구(84)와 냉각수 배출구(83)에 냉각배관을 연결시킴으로써 설치를 완료시킨다.After the assembly is completed as described above, the rotary shaft 100 is fitted into the inner hollow 72 of the sleeve 7, and then the cooling pipe is connected to the cooling water inlet 84 and the cooling water outlet 83 to complete the installation. .
그리고, 상기 윤활유 주입구(28)와 윤활유 배출구(48)에 윤활공급장치(도시되지 않음)를 설치하고, 상기 누유확인공(64)에 누유감지장치(도시되지 않음)를 설치시킨다. In addition, a lubrication supply device (not shown) is installed at the lubricating oil inlet 28 and the lubricating oil outlet 48, and a leaking oil detecting device (not shown) is installed at the leaking oil confirmation hole 64.
이상에서 설명한 바와 같이, 본 발명에 따른 회전축용 밀폐장치는 기어박스, 화학펌프, 교반기, 믹서, 변속기, 건조기, 콤프레샤와 같은 회전축을 갖는 기계요소에서 회전축 상에 설치되어 회전축의 회전구동을 지지하면서, 유체의 누설을 방지할 수 있도록 밀폐성을 크게 향상되고, 또한 구조가 간결하여 가공 및 조립이 용이하며, 이의 보수를 쉽게 하는 한편, 냉각효율을 향상시켜서 내구성과 수명이 향상된 장점이 제공된다.As described above, the sealing device for a rotating shaft according to the present invention is installed on a rotating shaft in a mechanical element having a rotating shaft, such as a gearbox, a chemical pump, a stirrer, a mixer, a transmission, a dryer, a compressor, and supports a rotating drive of the rotating shaft. In addition, the sealing property is greatly improved to prevent the leakage of the fluid, and the structure is simple, so that it is easy to process and assemble, and the maintenance thereof is easy, while the cooling efficiency is improved, and durability and lifespan are improved.
삭제delete
도 1은 본 발명에 따른 회전축용 밀폐장치에 대한 분해사시도1 is an exploded perspective view of a sealing device for a rotating shaft according to the present invention
도 2는 본 발명에 따른 회전축용 밀폐장치에 대한 결합된 단면도Figure 2 is a combined cross-sectional view of the sealing device for a rotating shaft according to the present invention
도 3은 도 2에서 A에 대한 확대 단면도3 is an enlarged cross-sectional view of A in FIG. 2.
도 4는 본 발명에서 밀폐장치의 다른 실시예를 보여주는 단면도Figure 4 is a cross-sectional view showing another embodiment of the closure device in the present invention
도 5는 종래 회전축용 메카니컬 밀폐장치의 일실시예를 보여주는 단면도Figure 5 is a cross-sectional view showing an embodiment of a conventional mechanical sealing device for a rotating shaft
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on main parts of the drawing
2 : 제1하우징 3 : 오일밀폐부재2: first housing 3: oil sealing member
4 : 제2하우징 5 : 제1밀폐부재4: 2nd housing 5: 1st sealing member
6 : 제3하우징 7 : 슬리브6: third housing 7: sleeve
8 : 제1플랜지 9 : 제2플랜지8: first flange 9: second flange
10 : 제1베이스링 11 : 제2밀폐부재10: first base ring 11: second sealing member
12 : 제2베이스링 13 : 제3베이스링12: second base ring 13: third base ring
14 : 칼라부 15 : V - 링14: collar 15: V-ring
22, 42, 62, 82, 92 : 축공 24 : 제1안착홈22, 42, 62, 82, 92: shaft work 24: first seating groove
26 : 제2안착홈 27 : 제1체결공26: 2nd seating groove 27: 1st fastening work
28 : 윤활유 주입구 29 : 장볼트 28: lube oil inlet 29: long bolt
32 : 스프링 34 : 금속보형물32: spring 34: metal implant
36 : 씰링립 41 : 제4안착홈36: sealing lip 41: fourth seating groove
44 : 제3안착홈 46 : 제5안착홈44: third seating groove 46: fifth seating groove
47 : 제2체결공 48 : 윤활유 배출구47: second fastening hole 48: lubricating oil outlet
52 : 지지체 54 : 환형날개부52 support body 54 annular wing portion
61 : 씰커버 63, 130 : 고정볼트61: seal cover 63, 130: fixing bolt
64 : 누유확인공 65 : 냉각수 이송로 64: oil leakage check 65: cooling water transfer path
66 ; 제6안착홈 72 : 중공66; 6th seating groove 72: hollow
74 : 시일링 81 : 제7안착홈74: sealing ring 81: seventh seating groove
83 : 냉각수 배출구 84 : 냉각수 주입구83: cooling water outlet 84: cooling water inlet
86, 94 : 냉각수 이송로 88 : 제4체결공86, 94 Cooling water transfer path 88: 4th fastening
89 : 제1나사공 95 : 제2나사공89: 1st screw thread 95: 2nd screw thread
100 : 회전축 110 : 씰링면100: rotating shaft 110: sealing surface
112 : 보형물 200 : 하우징부112: implant 200: housing portion
300 : 플랜지부 300: flange portion
Claims (8)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0023001A KR100496990B1 (en) | 2003-04-11 | 2003-04-11 | a sealing unit for a rotary device |
| PCT/KR2004/000835 WO2004090392A1 (en) | 2003-04-11 | 2004-04-10 | A sealing unit for a rotary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0023001A KR100496990B1 (en) | 2003-04-11 | 2003-04-11 | a sealing unit for a rotary device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20-2003-0011220U Division KR200323222Y1 (en) | 2003-04-11 | 2003-04-11 | a sealing unit for a rotary device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20040089287A KR20040089287A (en) | 2004-10-21 |
| KR100496990B1 true KR100496990B1 (en) | 2005-06-23 |
Family
ID=33157289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2003-0023001A KR100496990B1 (en) | 2003-04-11 | 2003-04-11 | a sealing unit for a rotary device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100496990B1 (en) |
| WO (1) | WO2004090392A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190108287A (en) | 2018-03-14 | 2019-09-24 | 씰링크 주식회사 | Sealing apparatus capable of linear and rotational motion |
| KR20190122974A (en) | 2018-04-23 | 2019-10-31 | 씰링크 주식회사 | Sealing apparatus capable of rotational motion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0423087D0 (en) * | 2004-10-18 | 2004-11-17 | Aes Eng Ltd | Close coupled mechanical seal |
| KR100756029B1 (en) * | 2006-03-16 | 2007-09-07 | 주식회사 신원기계부품 | Sealing apparatus of rotation and reciprocating motion for vacuum and pressure manufacturing machine |
| KR101304791B1 (en) * | 2011-11-28 | 2013-09-05 | 주식회사 포스코 | Device for Sealing Driving Shaft |
| CN102734151A (en) * | 2012-07-06 | 2012-10-17 | 白银鸿浩化工机械制造有限公司 | Non-contact seal of pulp pump |
| DE102013106407B4 (en) * | 2013-06-19 | 2019-09-12 | Tobias Müller | sealing arrangement |
| JP7144080B2 (en) * | 2018-03-14 | 2022-09-29 | シーリンク株式会社 | rotary motion sealing device |
| KR102378581B1 (en) * | 2020-06-19 | 2022-03-24 | 씰링크 주식회사 | Rotating shaft sealing device and processing apparatus for semiconductor substrate using the same |
| KR102411880B1 (en) * | 2020-10-13 | 2022-06-22 | 씰링크 주식회사 | Sealing device capable of linear motion and processing apparatus for semiconductor substrate using the same |
| CN114551203B (en) * | 2020-11-25 | 2024-09-27 | 李喜张 | Linear motion sealing device and semiconductor substrate processing apparatus using the same |
| TWI802925B (en) * | 2021-07-02 | 2023-05-21 | 南韓商世利可股份有限公司 | Rotating shaft sealing device and processing apparatus for semiconductor substrate using the same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5572664A (en) * | 1978-11-28 | 1980-05-31 | Toshiba Corp | Water sealing device for hydraulic machine shaft |
| JPH044365A (en) * | 1990-04-23 | 1992-01-08 | Tanken Seiko Kk | Mechanical seal |
| JPH044366A (en) * | 1990-04-23 | 1992-01-08 | Seiko Epson Corp | Sealing mechanism for power shaft introducing section |
| JPH0654965U (en) * | 1993-01-12 | 1994-07-26 | 佐竹化学機械工業株式会社 | Rotating shaft sealing device |
| JPH07332216A (en) * | 1994-06-09 | 1995-12-22 | Meidensha Corp | Sealing part structure of shaft |
| US5647598A (en) * | 1995-07-19 | 1997-07-15 | Vaudolon; Jean-Pierre | Stuffing box seal having braided packings and lip seal rings in combination with a shaft sleeve |
| JPH1113894A (en) * | 1997-06-19 | 1999-01-22 | Nippon Pillar Packing Co Ltd | Mechanical seal |
| JP3509613B2 (en) * | 1999-03-31 | 2004-03-22 | 株式会社栗本鐵工所 | Shaft sealing device for rotating equipment |
-
2003
- 2003-04-11 KR KR10-2003-0023001A patent/KR100496990B1/en active IP Right Grant
-
2004
- 2004-04-10 WO PCT/KR2004/000835 patent/WO2004090392A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190108287A (en) | 2018-03-14 | 2019-09-24 | 씰링크 주식회사 | Sealing apparatus capable of linear and rotational motion |
| KR20190122974A (en) | 2018-04-23 | 2019-10-31 | 씰링크 주식회사 | Sealing apparatus capable of rotational motion |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040089287A (en) | 2004-10-21 |
| WO2004090392A1 (en) | 2004-10-21 |
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