KR100747225B1 - Screw for vacuum pump - Google Patents

Screw for vacuum pump Download PDF

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Publication number
KR100747225B1
KR100747225B1 KR1020060111392A KR20060111392A KR100747225B1 KR 100747225 B1 KR100747225 B1 KR 100747225B1 KR 1020060111392 A KR1020060111392 A KR 1020060111392A KR 20060111392 A KR20060111392 A KR 20060111392A KR 100747225 B1 KR100747225 B1 KR 100747225B1
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South Korea
Prior art keywords
lead
screw
vacuum pump
endless
section
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KR1020060111392A
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Korean (ko)
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박재용
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주식회사 브이피에스
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/22—Fluid gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • 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
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • 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
    • Y10S417/00—Pumps

Abstract

A screw for a vacuum pump is provided to realize effective fluid compression flow and keep a stable capacity and vacuum in three-stepped compression type endless lead structure, and minimize dynamic unbalance caused by high speed rotation by calculating and employing a proper lead number, a proper lead rate and different starting points of two leads. A screw for a vacuum pump includes first endless lead sections(A,B), a middle blank section(C), and second endless lead sections(D-H) in a three-stepped structure, wherein a sharp part(1) and a screw part(2) are formed integrally. The first and second lead sections determine a basic capacity of the vacuum pump. The middle blank section is interposed between the first and second lead sections for serving as a bridge to make fluid flow smooth by dispersing compression rates of the both lead sections around 1.5 to 1.

Description

계단형 압축식 이종 무단 리이드 진공펌프용 스크류{SCREW FOR VACUUM PUMP}Screws for Stepped Compression Different Endless Lead Vacuum Pumps {SCREW FOR VACUUM PUMP}

도 1내지 도 3은 본 발명에 따른 계단형 압축식 이종(異種) 무단 리이드 진공펌프용 스크류의 구성도.1 to 3 is a block diagram of a screw for a stepped compression type heterogeneous endless lead vacuum pump according to the present invention.

도 4는 본 발명에 따른 계단형 압축식 이종(異種) 무단 리이드 진공펌프용 스크류의 적용상태가 도시된 도표.Figure 4 is a diagram showing the application state of the stepped compression type heterogeneous endless lead vacuum pump screw according to the present invention.

본 발명은 스크류형 진공펌프에 사용되어지는 스크류에 관한 것으로써, 보다 상세하게는 스크류의 물리적 역할인 유체 압축성 효율을 보다 향상시키기 위하여 인위적인 압축비를 단계적(계단식)으로 부여하여 그 효율을 극대화 시킬 수 있도록 구성한 계단형 압축식 이종(異種) 무단 리이드 진공펌프용 스크류에 관한 것이다.The present invention relates to a screw that is used in a screw-type vacuum pump, and more particularly, to artificially give a compression ratio in steps (steps) to maximize the fluid compressibility efficiency, which is a physical role of the screw, to maximize its efficiency. The present invention relates to a screw for a stepped compression type heterogeneous endless lead vacuum pump.

잘 알려진 바와 같이 스크류형 진공펌프에 있어서, 진공펌프의 용량과 진공도 그리고 소요 동력은 전적으로 스크류에 의해 좌우된다고 볼 수 있다. As is well known, in screw-type vacuum pumps, the capacity, degree of vacuum and power required of the vacuum pump are entirely dependent on the screw.

이러한 스크류의 형태에 따라 진공펌프의 용량과 진공도 그리고 소요 동력은 얼마든지 효율적으로 관리할 수 있게 된다.According to the type of screw, the capacity, vacuum degree and power of the vacuum pump can be managed efficiently.

보다 작은 길이(DIMENSION)의 스크류로 보다 많은 용량을 확보하고, 보다 낮은 진공도를 얻으며, 보다 적은 동력을 사용하고자 하는 것이 진공펌프용 스크류가 해결해야할 과제이다,The challenge of the screw for a vacuum pump is to secure more capacity with a smaller DIMENSION screw, to obtain a lower degree of vacuum, and to use less power.

따라서 상기한 바와 같은 과제를 해결하기 위한 본 발명의 목적은, 스크류의 물리적 역할인 유체 압축성 효율을 보다 향상시키기 위하여 인위적인 압축비를 단계적(계단식)으로 부여하여 그 효율을 극대화하고, 고회전에 의한 스크류의 언발란스(UNBALANCE)를 해소하기 위한 최적의 리이드 비와 리이드 수를 산출, 적용하여 언바란스(UNBALANCE)에 의한 물리적 저해 요소를 해결할 수 있도록 구성한 계단형 압축식 이종(異種) 무단 리이드 진공펌프용 스크류를 제공함에 있다.Accordingly, an object of the present invention for solving the above problems is to maximize the efficiency by providing an artificial compression ratio stepwise (stepped) in order to further improve the fluid compressibility efficiency which is a physical role of the screw, Provides a screw for stepped compression type endless lead vacuum pump that is configured to solve the physical obstacles caused by UNBALANCE by calculating and applying the optimum lead ratio and the number of leads to solve the unbalance. Is in.

본 발명의 다른 목적은, 스크류의 전체적인 길이(DIMENSION)를 짧게 하여 동력 감소를 유도함과 동시에 스크류가 가지는 내부발열을 보다 짧은 시간 내에 배기함으로써 유체압축에 의한 내부온도를 낮추어 스크류 및 스크류형 진공펌프의 내구성을 향상시킬 수 있도록 구성한 계단형 압축식 이종(異種) 무단 리이드 진공펌프용 스크류를 제공함에 있다.Another object of the present invention is to shorten the overall length (DIMENSION) of the screw to induce power reduction and exhaust the internal heat of the screw in a shorter time to lower the internal temperature due to the fluid compression to reduce the screw and screw-type vacuum pump The present invention provides a screw for a stepped compressed heterogeneous endless lead vacuum pump configured to improve durability.

상기한 바와 같은 목적을 달성하기 위한 본 발명의 계단형 압축식 이종(異種) 무단 리이드 진공펌프용 스크류는, 첨부된 도면에서처럼 첫 번째 무단리이드구간(A, B)과 중간공간구간(C), 그리고 두 번째 무단 리이드구간(D~H)으로 구성되어 지며, 전체적으로 샤프트부(1)와 스크류부(2)가 일체로 성형되는 구조로 구성됨을 특징으로 한다. Screws for stepped compression type heterogeneous endless lead vacuum pump of the present invention for achieving the object as described above, the first endless lead section (A, B) and intermediate space section (C), And it consists of a second endless lead section (D ~ H), characterized in that the shaft portion 1 and the screw portion (2) is formed as a whole integrally molded.

그리고, 본 발명은 스크류형 진공펌프에서 스크류가 가지는 역할, 즉 용량과 진공도 그리고 발란스(BALANCE), 동력이라는 측면에서 보다 효율적이고 효과적인 특징을 가지고 있다.In addition, the present invention has a more efficient and effective feature in terms of the role of the screw in the screw-type vacuum pump, that is, the capacity and the degree of vacuum and balance (BALANCE), power.

두 가지의 서로 다른 이종(異種)의 무단 리이드인 두 리이드를 원활히 연결시켜주는 중간공간(MIDDLE BLANK)을 일정한 최적의 압축비(계단식)로 배치하여 용량과 진공도의 안정성을 확보하고, 첫 번째 무단 리이드와 두 번째 무단 리이드의 리이드 비 및 리이드 수를 최적으로 조합함과 동시에 첫 번째 리이드와 두 번째 리이드의 시작 위치를 정반대로 설정하여 고회전에 의한 자연적 언발란스(UNBALANCE)량을 최소화하여 외부 물질 유입에 의한 발란스(BALANCE)파괴를 최소화 하였다.The stability of the capacity and vacuum degree is secured by arranging the MIDDLE BLANK, which connects two leads, two different types of endless leads, with a constant optimal compression ratio (stair type), and the stability of the first stepless leads. Optimal combination of the lead ratio and the number of leads of the second and second endless leads, and at the same time set the start position of the first lead and the second lead in the opposite direction to minimize the natural unbalance amount due to high rotation, Minimize BALANCE destruction.

또한 이종(異種)의 두 리이드와 중간공간(MIDDLE BLANK)이 최적의 압축비(계단식)에 의해 혼용되어 일체형으로 사용되어짐으로써 전체적인 길이(DIMENSION)가 짧아지는 효과도 얻게 된다.In addition, the two kinds of lead and the intermediate space (MIDDLE BLANK) are mixed by the optimal compression ratio (stair type) and used integrally, so that the overall length (DIMENSION) is shortened.

이는 본 스크류가 사용되어지는 스크류형 진공펌프의 동력 절감으로 이어지며, 아울러 스크류가 가지는 내부발열을 보다 짧은 시간 내에 배기함으로써 유체압축에 의한 내부온도를 낮추고, 최적의 발란스(BALANCE)상태와 병행하여 스크류 및 스크류형 진공펌프의 내구성 향상에 기여할 수 있도록 구성됨을 특징으로 한다.This leads to power saving of the screw type vacuum pump in which the screw is used, and also lowers the internal temperature due to fluid compression by exhausting the internal heat of the screw in a shorter time, and in parallel with the optimum balance state. It is characterized in that it is configured to contribute to improving the durability of the screw and screw-type vacuum pump.

이하, 본 발명의 바람직한 실시 예의 상세한 설명을 첨부된 도면을 참조하여 설명하기로 한다. Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

첨부된 도면을 참조하면, 본 발명의 계단형 압축식 이종(異種) 무단 리이드 진공펌프용 스크류는 첫 번째 무단 리이드구간(A, B)과 중간공간구간(C) 그리고 두 번째 무단 리이드구간(D~H)으로 이어지는 3단의 계단형 압축식 무단 리이드 구조를 가지고 있다.Referring to the accompanying drawings, the screw for stepped compression type hetero endless lead vacuum pump of the present invention is the first endless lead section (A, B) and the intermediate space section (C) and the second endless lead section (D ~ H) has a three-stage, stepped compressionless lead structure.

본 발명의 진공펌프용 스크류에 있어 처음 시작하는 무단 리이드구간(A, B)은 안정적 용량을 확보하기 위하여 적용되어진다.In the vacuum pump screw of the present invention, the endless lead sections A and B which are first started are applied to ensure a stable capacity.

이는 스크류형 진공펌프의 가장 근본인 용량을 결정하는 구간으로서 두 개의 무단 리이드구간(A, B)을 사용하는 것이 가장 적합하다.It is most suitable to use two endless lead sections (A, B) as the section for determining the most basic capacity of the screw-type vacuum pump.

이어서 중간공간(MIDDLE BLANK)구간(C)을 두어서 첫 번째 무단 리이드구간(A, B)과 두 번째 무단 리이드구간(D~H)의 흐름을 원활하게 하였다.Subsequently, the middle space (MIDDLE BLANK) section (C) was provided to facilitate the flow of the first stepless lead section (A, B) and the second stepless lead section (D ~ H).

그리고 중간공간구간(C)구간은 첫 번째 무단 리이드구간(A, B)과 두 번째 무단 리이드구간(D~H)이 가지는 압축비에 의해 급격히 줄어드는 유체의 흐름을 원활하게 하는 가교역활을 하기 위한 공간이며, 아울러 이종(異種) 무단 리이드가 가지는 가공 상의 서로 다른 공구 사용 시 공구의 진, 출입을 원활하게 하기 위한 공간으로서의 역할도 한다.The intermediate space section (C) is a space for a crosslinking role that facilitates the flow of fluid that is rapidly reduced by the compression ratio of the first and second unauthorized lead sections (A, B) and the second unauthorized lead section (D to H). In addition, it serves as a space for smooth entry and exit of the tool when using different tools in the machining of the heterogeneous endless lead.

그리고 중간공간구간(C)이 수행하는 유체의 흐름을 원활하게 하는 가교역활이란 첫 번째 리이드구간(A, B)과 두 번째 무단 리이드구간(D~H)이 가지는 압축비가 2:1 ~ 2.5:1 사이가 가장 적합한 것으로 보는데, 이는 급격한 체적 변화에 따른 유체의 흐름을 방해하여 유체역류(백러쉬) 및 고열발생을 가져오는 부작용이 나타난다. In addition, the crosslinking role that facilitates the flow of the fluid performed by the intermediate space section (C) is the compression ratio of the first lead section (A, B) and the second stepless lead section (D ~ H) is 2: 1 ~ 2.5: 1 is considered to be the most suitable, which has the side effect of disturbing the flow of the fluid due to the rapid volume change resulting in fluid backflow (backlash) and high heat generation.

이를 해결하는 방법으로 양 리이드 사이에 중간공간(MIDDLE BLANK)구간(C)을 두어 압축비를 1.5:1 전후로 분산시켜 흐름을 원활히 하게한다.As a solution to this problem, a mid-space (C) section between the two leads is used to distribute the compression ratio around 1.5: 1 to facilitate the flow.

따라서 첫 번째 무단 리이드구간(A, B)과 중간공간구간(C)은 1.5:1 전후의 압축비를, 중간공간구간(C)과 두 번째 리이드구간(D~H) 역시 1.5:1 전후의 압축비를 가지지만, 첫 번째 무단 리이드구간(A, B)과 두 번째 무단 리이드구간(D~H)은 2:1 ~ 2.5:1사이의 압축비를 가지게 된다.Therefore, the first stepless lead section (A, B) and the intermediate space section (C) have a compression ratio of about 1.5: 1, and the intermediate space section (C) and the second lead section (D-H) also have a compression ratio of about 1.5: 1. The first stepless lead section (A, B) and the second stepless lead section (D ~ H) have a compression ratio between 2: 1 and 2.5: 1.

이것이 본 발명의 핵심인 계단형 압축식 이종(異種) 무단 리이드 진공펌프용 스크류의 근본이 된다.This is the basis of the screw for stepped compression type hetero endless lead vacuum pump which is the core of the present invention.

이와 함께 중간공간(MIDDLE BLANK)구간(C)이 있음으로 인해 가공 시 각 리이드에 맞는 서로 다른 공구를 선정, 사용하여 생산성 향상과 가공의 효율성을 극대화 할 수 있는 장점도 가지게 된다.In addition, the mid-space (MIDDLE BLANK) section (C) also has the advantage of improving productivity and maximizing the efficiency of machining by selecting and using different tools for each lead during machining.

이어서 두 번째 무단 리이드구간(D~H)은 스크류형 진공펌프의 기본 역할인 진공도를 결정하고, 회전체가 가지는 동적 언발란스(UNBALANCE)를 최소화 하는 역할을 한다.Subsequently, the second stepless lead section (DH) determines the degree of vacuum, which is the basic role of the screw type vacuum pump, and minimizes the dynamic unbalance of the rotating body.

그리고 두 번째 무단 리이드구간(D~H)은 다섯 개의 리이드로 구성되어지며 가공 공차의 최소설정과 도 2에서 도시된 바와 같이 스크류 날 양 측면(X-측면, Y-측면)에 인위적 각도를 부여하지 않음으로서(리이드 각만 존재) 가공성 향상과 안정적 진공도 확보를 할 수 있도록 하였다.The second endless lead section (D-H) is composed of five leads and provides an artificial angle on both sides of the blade (X-side, Y-side) as shown in FIG. By not using it (lead angle only), it is possible to improve workability and to ensure stable vacuum degree.

그리고 스크류의 날 양 측면(X-측면, Y-측면)의 인위적 각도 배제는 첫 번째 무단 리이드구간(A, B)에도 적용되어 진다.The artificial angular exclusion of both sides of the blade (X-side, Y-side) of the screw is also applied to the first endless lead section (A, B).

이러한 인위적 각도 배제는 본 발명인 계단형 압축식 이종(異種) 무단 리이드 진공펌프용 스크류의 또 하나의 특징이 된다.This artificial angular exclusion is another feature of the screw for the stepped compression type hetero endless lead vacuum pump of the present invention.

아울러 도 3에서 도시된 바와 같이 두 번째 무단 리이드구간(D~H)은 회전에 의한 동적 언발란스(UNBALANCE)를 최소화하기 위하여 첫 번째 무단 리이드구간(A, B)의 시작점(100)과 정반대(180ㅀ) 위치에서 시작점(200)을 갖게 된다. In addition, as shown in FIG. 3, the second endless lead section DH may be opposite to the starting point 100 of the first endless lead section A and B in order to minimize dynamic unbalance due to rotation. Iii) has a starting point 200 at the position.

한편, 동적 언발란스(UNBALANCE)의 최소화는 스크류와 같은 회전체에 있어 필수요소로 진동방지와 외부 물질 유입에 의한 발란스(BALANCE) 파괴를 사전에 차단할 수 있어, 스크류 뿐만 아니라 스크류형 진공펌프의 내구성 향상과 제품 수명연장에 중요한 역할을 수행할 수 있는 것이다.On the other hand, the minimization of dynamic unbalance is an essential element for rotating bodies such as screws, which can prevent vibration and breakage of balance caused by the inflow of foreign substances in advance, improving the durability of screw-type vacuum pumps as well as screws. And play an important role in extending product life.

그리고 본 발명에서 설명하는 무단 리이드라 함은 첫 시작점에서 일 회전(360ㅀ)을 하여 진행한 거리 측 리이드(LEAD)가 변함없이 일정한 값을 가지는 것을 말하고, In addition, the endless lead described in the present invention refers to a distance side lead (LEAD) proceeded by one rotation (360 ㅀ) at the first starting point has a constant value unchanged,

중간공간구간(C)이라 함은 첫 번째 리이드구간(A, B)과 두 번째 리이드구간(D~H) 사이에 위치하여 첫 번째 리이드구간(A, B)을 통해 유입된 유체가 두 번째 리이드구간(D~H)으로 원활하게 흐를 수 있도록 하는 가교역할을 하며, 스크류 가공시 사용 공구의 진,출입 및 불필요한 공구 간섭 방지 등이 가능하도록 하는 공간으로도 활용되는 중간 부분을 말하며, The intermediate space section (C) is located between the first lead section (A, B) and the second lead section (D ~ H) so that the fluid flowing through the first lead section (A, B) is the second lead. It acts as a cross-linking role to flow smoothly to the section (D ~ H), and refers to the middle part that is also used as a space to prevent the entry, entry and prevention of unnecessary tool interference during screw processing,

압축비라 함은 첫 번째 리이드구간(A, B)과 중간공간(MIDDLE BLANK)구간(C), 그리고 두 번째 리이드구간(D~H)의 상호 상대적 용량비율 혹은 체적비율를 말한다.Compression ratio refers to the relative capacity or volume ratio of the first lead section (A, B), the mid-space (MIDDLE BLANK) section (C), and the second lead section (D ~ H).

그리고 언발란스(UNBALANCE)라 함은 회전체가 회전시 회전의 중심을 벗어나려고 하는 힘을 말하며 이는 흔히 회전체의 진동으로 표현되며 그 양을 무게(g)로 표시하여 언발란스(UNBALANCE)에 대한 상태를 평가하며, 계단형 압축식이란 도 4에서 도시된 바와 같이 첫 번째 리이드구간(A, B)과 중간공간(MIDDLE BLANK)구간(C) 그리고 두 번째 리이드구간(D~H)의 상호 상대적 압축비, 혹은 리이드가 계단형태를 가짐을 말하는 것이다.UNBALANCE refers to the force that the rotating body tries to move out of the center of rotation when it is rotating. It is often expressed as the vibration of the rotating body and expresses the amount in weight (g) to indicate the state of the unbalance. As shown in Fig. 4, the stepped compression equation is a relative compression ratio between the first lead section A and B, the MIDDLE BLANK section C, and the second lead section D to H, Or it means that the lead has a stepped form.

이상으로 살펴본 바와 같이, 본 발명의 계단형 압축식 이종(異種) 무단 리이드 진공펌프용 스크류는 두 개의 첫 번째 무단 리이드와 중간공간(MIDDLE BLANK),그리고 다섯 개의 두 번째 무단 리이드로 이어지는 3단의 계단형 압축식 무단 리이드 구조를 가짐으로서 유체 압축의 흐름을 효과적으로 수행, 안정적 용량과 진공도를 유지케 하고, 두 리이드간 서로 상이한 시작점과 최적의 리이드 비, 적절한 리이드 수를 산출, 적용함으로서 고회전에 의한 동적 언발란스(UNBALANCE)를 최소화 하였다.As described above, the screw for the stepped compression type endless lead vacuum pump according to the present invention has three stages leading to two first endless leads, an intermediate space (MIDDLE BLANK), and five second endless leads. The stepless compression type leadless structure effectively performs the flow of fluid compression, maintains stable capacity and vacuum degree, and calculates and applies different starting points, optimal lead ratios, and proper number of leads between the two leads. Dynamic unbalance was minimized.

또한, 중간공간(MIDDLE BLANK)과 스크류 날 양 측면(X-측면, Y-측면)의 인위적 각도 배제는 가공의 효율성을 높임과 동시에 생산성을 향상시켜 궁극적으로 제품의 생산원가 절감에 기여하게 된다.In addition, the elimination of artificial angles between the MIDDLE BLANK and the screw blades on both sides (X-side, Y-side) increases the efficiency of the machining and improves productivity, ultimately contributing to the reduction of the production cost of the product.

또, 전체적인 길이(DIMENSION)를 짧게 하여 동력 감소를 유도함과 동시에 스 크류가 가지는 내부발열을 보다 짧은 시간 내에 배기함으로써 유체압축에 의한 내부온도를 낮추어 스크류 및 스크류형 진공펌프의 내구성 향상에 중요한 역할을 할 수 있는 효과가 있는 것이다.In addition, shortening the overall length (DIMENSION) induces power reduction and exhausts the internal heat generated by the screw in a shorter time, thereby lowering the internal temperature caused by fluid compression, which plays an important role in improving the durability of the screw and screw type vacuum pump. There is an effect that can be done.

Claims (1)

진공펌프용 스크류에 있어서,In the screw for the vacuum pump, 샤프트부(1)와 스크류부(2)가 일체로 성형되며,The shaft part 1 and the screw part 2 are integrally molded, 안정적 용량을 확보하기 위하여 적용되는 첫 번째 무단리이드구간(A, B)과;First endless lead sections (A, B) applied to ensure stable capacity; 다섯 개의 리이드로 구성된 두 번째 무단 리이드구간(D~H)과;A second endless lead section (DH) consisting of five leads; 상기 첫 번째 무단리이드구간(A, B)과 두 번째 무단 리이드구간(D~H)의 사이에 형성되며 두 가지의 서로 다른 이종(異種)의 무단 리이드인 두 리이드를 원활히 연결시켜주는 중간공간구간(C)을 포함하여서 구성됨을 특징으로 하는 계단형 압축식 이종(異種) 무단 리이드 진공펌프용 스크류.The intermediate space section is formed between the first endless lead section (A, B) and the second endless lead section (D ~ H) and smoothly connects two leads of two different heterogeneous leads. Screw for stepped compression type two-way endless lead vacuum pump, characterized in that it comprises a (C).
KR1020060111392A 2006-11-13 2006-11-13 Screw for vacuum pump KR100747225B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101132894B1 (en) 2009-07-22 2012-04-03 가부시키가이샤 도요다 지도숏키 Screw rotor
CN104696223A (en) * 2015-03-27 2015-06-10 巫修海 Screw vacuum pump self-balanced screw rotor
CN105673503A (en) * 2014-11-25 2016-06-15 巫修海 Screw of screw vacuum pump
KR20160134218A (en) 2015-05-15 2016-11-23 주식회사 동방플랜텍 Continuous multi-stage compression screw of the vacuum pump
KR101719964B1 (en) 2016-11-10 2017-03-24 (주)글로텍 Screw-rotor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200415728Y1 (en) 2006-02-24 2006-05-04 주식회사 브이피에스 screw for a vacuum pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200415728Y1 (en) 2006-02-24 2006-05-04 주식회사 브이피에스 screw for a vacuum pump

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101132894B1 (en) 2009-07-22 2012-04-03 가부시키가이샤 도요다 지도숏키 Screw rotor
CN105673503A (en) * 2014-11-25 2016-06-15 巫修海 Screw of screw vacuum pump
CN104696223A (en) * 2015-03-27 2015-06-10 巫修海 Screw vacuum pump self-balanced screw rotor
CN104696223B (en) * 2015-03-27 2016-12-28 巫修海 screw vacuum pump self-balancing screw rotor
KR20160134218A (en) 2015-05-15 2016-11-23 주식회사 동방플랜텍 Continuous multi-stage compression screw of the vacuum pump
KR101719964B1 (en) 2016-11-10 2017-03-24 (주)글로텍 Screw-rotor

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