KR20010061738A - Rotational vane type pump - Google Patents

Rotational vane type pump Download PDF

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Publication number
KR20010061738A
KR20010061738A KR1019990064272A KR19990064272A KR20010061738A KR 20010061738 A KR20010061738 A KR 20010061738A KR 1019990064272 A KR1019990064272 A KR 1019990064272A KR 19990064272 A KR19990064272 A KR 19990064272A KR 20010061738 A KR20010061738 A KR 20010061738A
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KR
South Korea
Prior art keywords
vane
rotor
guide
vacuum pump
vane guide
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KR1019990064272A
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Korean (ko)
Inventor
서동원
Original Assignee
에릭 발리베
발레오만도전장시스템스코리아 주식회사
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Application filed by 에릭 발리베, 발레오만도전장시스템스코리아 주식회사 filed Critical 에릭 발리베
Priority to KR1019990064272A priority Critical patent/KR20010061738A/en
Publication of KR20010061738A publication Critical patent/KR20010061738A/en

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Classifications

    • 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
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • 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
    • 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
    • F04C29/06—Silencing
    • 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE: A rotary vane type vacuum pump is provided to increase the amount of fluid discharge by maintaining rotation speed of the vane constant, and prevent chattering by connecting the vane to the rotator in a stable manner. CONSTITUTION: A vane guide which is hexahedron and has a hollow portion formed in a lengthwise direction of the vane guide, is inserted into a rotor(4) having a slot formed in a lengthwise direction of the rotor. The vane guide inserted into the slot of the rotor, is protruded in the diameter direction of the rotor in such a manner that minimum 40 percents from a top dead center(12) of the rotor and vanes(6a,6b) are maintained. That is, the vane guide is protruded in the diameter direction of the rotor, in such a manner that the contact ratio between the vane and the rotor becomes 40 percents minimum. Plate-shaped vanes are inserted, from top and bottom of the vane guide, into the hollow portion of the vane guide. Thus-assembled rotor, vane guide and vane is installed in a housing(1) of a vacuum pump in an eccentric manner.

Description

회전식 베인형 진공펌프 {Rotational vane type pump}Rotary vane type pump

본 발명의 진공펌프는 차량용 발전기의 일단에 설치되어, 로터의 회전으로 발생되는 원심력에 의해 압축된 진공압상태인 유체와 외부 대기압사이의 차에 의한 진공력을 브레이크에 전달되게하여 브레이크의 작동이 보조되도록 한 것이다.The vacuum pump of the present invention is installed at one end of the vehicle generator, and the operation of the brake is transmitted by causing the vacuum force due to the difference between the fluid in the vacuum state and the external atmospheric pressure compressed by the centrifugal force generated by the rotation of the rotor to be transmitted to the brake. It was to be subsidized.

일반적으로 사용되는 진공펌프는 도 1에서 도시된 바와 같이, 하우징의 내부에 회전축이 편심되게 설치되고 상기 회전축(도시안됨)과 회전가능하게 로터(4)가 하우징(1)에 편심되어 설치되며, 원통형인 상기 로터에는 판상인 2개의 베인(6a, 6b)이 직경방향으로 미끄럼운동가능하도록 180°의 위상차를 가지고 삽입되고, 유체의 흐름방향으로 유체의 유입구(7)와 배출구(8)가 하우징에 형성되어 구성된 것이다.In general, the vacuum pump is used, as shown in Figure 1, the rotating shaft is installed eccentrically inside the housing and the rotor 4 is installed eccentrically to the housing (1) rotatably with the rotating shaft (not shown), In the cylindrical rotor, two plate-shaped vanes 6a and 6b are inserted with a phase difference of 180 ° so as to be slidable in the radial direction, and a fluid inlet 7 and an outlet 8 in the flow direction of the fluid are housed. It is formed and formed on.

종래의 진공펌프의 구동을 살펴보면, 회전축에 의해 로터(4)가 시계방향으로 하우징(1)내에서 회전되면, 회전에 의한 원심력으로 인하여 베인(6a, 6b)이 직경방향으로 미끄럼운동되면서 로터의 외경방향으로 돌출되고, 베인의 끝단이 하우징의 내주면과 접촉되면서 회전된다. 도 1에서 도시된 베인(6a)의 하사점(13)위치는 베인(6a)과 로터(4)의 물림율이 최대이고, 로터(4)의 시계방향 회전에 따라 베인(6a)과 로터의 물림율이 감소되면서 베인(6a)이 외경방향으로 돌출되면서 회전하여, 상사점(12)위치에서 물림율이 최소가 되고, 점차 하사점(13)으로 이동되면서 물림율이 증가된다. 상기와 같은 로터 회전에 의한 원심력으로 베인이 직경방향이동되기 때문에 하우징내에 체적변화가 발생되고, 이로 인하여 유입구(7)를 통해 유체가 유입된다. 유입되어진 유체는 원심력에 의해 압축되어져 거의 진공상태에 가까워지고, 대기압 상태인 배출구(8)로 배출되어지는데 이때, 진공압과 대기압사이의 압력차에 의해 진공력이 발생되어 상기 진공력으로 브레이크를 보조하게 된다.Looking at the driving of the conventional vacuum pump, when the rotor 4 is rotated in the housing 1 in the clockwise direction by the rotation axis, the vanes (6a, 6b) due to the centrifugal force by the rotation sliding the radial direction of the rotor It protrudes in the outer diameter direction and rotates while the end of the vane is in contact with the inner circumferential surface of the housing. The position of the bottom dead center 13 of the vane 6a shown in FIG. 1 is the maximum bite rate of the vane 6a and the rotor 4 and the vane 6a and the rotor according to the clockwise rotation of the rotor 4. As the bite rate decreases, the vane 6a is rotated while protruding in the outer diameter direction, thereby minimizing the bite rate at the top dead center 12 position and gradually increasing to the bottom dead center 13. Since the vane is moved in the radial direction by the centrifugal force by the rotor rotation as described above, a volume change occurs in the housing, whereby the fluid is introduced through the inlet (7). The flowed fluid is compressed by centrifugal force to become almost vacuum, and is discharged to the outlet 8 which is at atmospheric pressure. At this time, a vacuum force is generated by the pressure difference between the vacuum pressure and the atmospheric pressure to brake the vacuum force. To help.

상기 같은 종래 진공펌프는 베인(6a)이 상사점위치일 때, 상기 베인(6b)을 기준으로 좌측에서는 진공상태의 유체에 의한 진공압을 받게 되고, 우측에서는 대가업 상태인 배출구를 통한 대기압을 받게 되므로 돌출된 베인의 면적에 압력차의 두배에 달하는 하중이 가해지고, 이로 인하여 베인이 로터 회전방향과 반대로 밀려나게되어 로터의 모서리와 밀착되어져 베인에 손상이 가해지고, 상사점에서의 베인과 로터의 물림율이 20%내외인 상태에서 회전동안 물림율이 급속하게 증가되어지기 때문에 베인의 회전속도가 급격하게 떨어져 많은 유체의 토출량을 기대할 수 없으며, 최저 20%의 물림상태인 베인에도 자려진동현상인 채터링(Chattering)이 발생되기 때문에 진공펌프에 소음이 발생된다. 또, 이를 위하여 물림율을 40% 유지되도록 로터의 직경을 크게 할 경우, 로터의 무게로 인하여 진공펌프의 경량화를 이룰 수 없다.When the vane 6a is in the top dead center position, the conventional vacuum pump is subjected to a vacuum pressure by a fluid in a vacuum state on the left side with respect to the vane 6b, and an atmospheric pressure through a discharge port in a large up state on the right side. As a result, a load twice the pressure difference is applied to the area of the protruding vanes, which causes the vanes to be pushed out in the opposite direction to the rotor rotation direction so that the vanes are in close contact with the edges of the rotor and damage the vanes. Since the bite rate is rapidly increased during rotation when the bite rate of the rotor is around 20%, the rotation speed of the vane drops sharply, so it is impossible to expect a large amount of fluid to be discharged. Since chattering occurs, noise occurs in the vacuum pump. In addition, for this purpose, when the diameter of the rotor is increased so that the bite rate is maintained at 40%, the weight of the rotor cannot be reduced due to the weight of the vacuum pump.

상기와 같은 문제점을 해결하기위해 안출된 것으로서, 차량의 발전기 일단에 설치되어 브레이크 장치를 보호하도록 하는 로터, 하우징, 베인등으로 구성된 회전식 베인형 진공펌프에 있어서, 본 발명은 로터(4)의 베인삽입홈에 베인가이드를 설치하여 베인과 로터의 물림율을 40%이상이 되게함으로써 베인의 회전속도를 일정하게 유지시켜 유체의 토출량을 증대시키고, 또한 베인의 손상과 소음을 방지하여 진공펌프의 품질을 향상시킨 것이다.In order to solve the problems as described above, in the rotary vane type vacuum pump consisting of a rotor, a housing, a vane, etc. installed on one end of the generator of the vehicle to protect the brake device, the present invention is a vane of the rotor (4) By installing a vane guide in the insertion groove so that the bite rate of the vane and the rotor becomes 40% or more, the rotation speed of the vane is kept constant, increasing the discharge amount of the fluid, and also preventing the damage and noise of the vane, thereby improving the quality of the vacuum pump. Will be improved.

이를 위한 특징적인 수단으로는 하우징, 상기 하우징의 편심된 상태로설치되는 회전축, 회전축과 회전가능하게 연결되고, 베인가이드가 삽입되는 홈을 구비한 로터 및 상기 로터의 홈에 삽입되어 로터의 직경방향으로 돌출되며 베인이 삽입되는 중공이 구비된 베인 가이드와 판상의 2개 베인으로 구성되도록 한 것이다.Characteristic means for this is a housing, a rotating shaft which is installed in an eccentric state of the housing, a rotor rotatably connected to the rotating shaft and having a groove into which a vane guide is inserted, and a radial direction of the rotor inserted into the groove of the rotor. Protruding into the vane is provided with a vane guide and the vane is inserted into two vanes on the plate.

본 발명을 첨부도면에 따라 상세히 설명하면 다음과 같다.The present invention will be described in detail with reference to the accompanying drawings.

도 1은 종래의 베인형 진공펌프1 is a conventional vane type vacuum pump

도 2는 본 발명의 베인형 진공펌프2 is a vane type vacuum pump of the present invention

도 3은 베인가이드와 베인의 분해사시도3 is an exploded perspective view of the vane guide and the vane

<도면 주요 부호의 상세한 설명><Detailed description of the main symbols in the drawing>

1 : 하우징 4 : 로터1 housing 4 rotor

6a, 6b : 베인 5 : 베인 가이드6a, 6b: vane 5: vane guide

7 : 유입구 8 : 배출구7: inlet port 8: outlet port

12 : 상사점 13 : 하사점12: top dead center 13: bottom dead center

본 발명은 도 2에서 도시된 바와 같이, 회전축(도시 안됨)과 연결되고, 베인가이드(5)가 삽입되는 직경방향으로에서 길이방향으로 연장된 홈을 구비한 로터(4)에 육면체이고, 길이방향으로 중공이 구비된 베인 가이드(5)를 삽입한다. 상기 로터에 삽입된 베인가이드(5)는 로터의 직경방향으로 로터와 베인의 상사점위치에서 최저 40%가 유지될 수 있도록 돌출되어진다. 상기 베인가이드의 중공에는 판상인 베인(6a, 6b)이 상하로 두 개 삽입되어진다. 상기와 같이 조립된 로터와 베인가이드, 베인을 도 3에서 도시된 바와 같이, 진공펌프의 하우징(1)에 편심된 상태로 설치한다.The present invention is a hexahedron in the rotor 4, which is connected to a rotating shaft (not shown) and has a groove extending in the longitudinal direction in the radial direction in which the vane guide 5 is inserted, as shown in FIG. Insert the vane guide (5) provided with a hollow in the direction. The vane guide 5 inserted into the rotor protrudes so that at least 40% can be maintained at the top dead center position of the rotor and the vane in the rotor radial direction. In the hollow of the vane guide, two plate-shaped vanes 6a and 6b are inserted vertically. The rotor, the vane guide, and the vane assembled as described above are installed in an eccentric state in the housing 1 of the vacuum pump, as shown in FIG.

상기와 같이 구성된 본 발명의 진공펌프가 회전축(도시 안됨)의 회전에 의해 로터(4)가 시계방향으로 하우징(1)내에서 회전되면, 회전에 의해 원심력이 발생되고, 이에 따라 베인이 베인가이드를 따라 직경방향으로 미끄럼운동되면서 베인의 끝단이 하우징의 내주면과 접촉되면서 회전된다. 이때 발생되는 하우징 내부의 체적변화로 인하여 유입구(7)에서 유체가 유입되고, 원심력으로 유입된 유체는 진공압까지 압축되어져 대기압 상태인 배출구(8)에서 배출되어진다.When the vacuum pump of the present invention configured as described above is rotated in the housing 1 in the clockwise direction by the rotation of a rotating shaft (not shown), the centrifugal force is generated by the rotation, and thus the vane guide While sliding in the radial direction along the end of the vane is rotated in contact with the inner peripheral surface of the housing. At this time, the fluid is introduced at the inlet 7 due to the volume change inside the housing, and the fluid introduced at the centrifugal force is compressed to a vacuum pressure and discharged from the outlet 8 at atmospheric pressure.

상기와 같은 운동중 베인(6a)이 로터의 회전에 따라, 베인이 상사점위치에 도달해도 베인 가이드의 돌출부에 의해서 베인과 로터의 물림율은 40%로 유지되기 때문에 베인의 회전속도가 베인이 베인의 상사점에서 배출구위치로 이동되는 동안일정하게 유지되어 토출되는 유체량이 기존의 진공펌프보다 늘어나고, 상사점위치의 베인(6b)이 받는 진공압과 대기압의 압력차에 의한 하중 또한 돌출된 면적이 작기 때문에 하중이 줄어들어 베인의 마모가 줄고, 베인의 안정적 고정으로 채터링도 방지된다.As the vane 6a is rotated by the rotor during the movement as described above, the vane and the rotor bite rate are maintained at 40% by the protrusion of the vane guide even when the vane reaches the top dead center position. The amount of fluid discharged and kept constant while moving from the top dead center of the vane to the outlet position increases, and the load due to the pressure difference between the atmospheric pressure and the vacuum pressure received by the vane 6b at the top dead center position also protrudes. This small load reduces the wear of the vanes and prevents chattering due to the stable fixation of the vanes.

위에서 설명한 바와 같이 본 발명은 회전식 베인형 진공펌프로써, 종래 로터와 베인의 회전시 발생되는 최저 물림율 20% 로 인해 발생되는 베인의 마모와 채터링의 문제점을 로터에 직경방향으로 돌출되게 베인가이드를 삽입시켜 로터와 베인의 물림율을 최저 40%로 유지시키기 때문에, 베인의 회전속도를 일정하게 유지시켜 유체의 토출량을 증대시키고, 상사점 위치의 베인 돌출면적을 줄여 베인을 로터와 안정적으로 연결시켜 채터링을 방지시키고, 압력차에 의한 하중을 줄여 베인의 마모를 줄인 것이다.As described above, the present invention is a rotary vane type vacuum pump, and a vane guide protrudes radially to the rotor in a problem of vane wear and chattering caused by a minimum bleeding rate of 20% generated when the rotor and the vane rotate. The rotor and the vane bite rate are kept at a minimum of 40% by inserting the pin, so that the vane's rotation speed is kept constant to increase the discharge volume of the fluid, and the vane's protrusion area at the top dead center is reliably connected to the rotor. This prevents chattering and reduces the wear of the vanes by reducing the load due to the pressure difference.

Claims (2)

차량용 발전기의 일단에 설치되어 하우징, 로터, 베인으로 구성된 회전식 베인형 진공펌프에 있어서, 직경에서 길이방향으로 연장된 홈이 구비된 상기 로터에 육면체로 형성되어, 길이방향으로 중공이 구비된 베인가이드가 삽입되고, 상기 베인가이드의 중공에는 베인이 삽입되어 형성되는 것을 특징으로 하는 회전식 베인형 진공펌프.A rotary vane type vacuum pump installed at one end of a vehicle generator, comprising a housing, a rotor, and a vane, the vane guide having a hollow body formed in the rotor having a groove extending in a length direction in a length direction and having a hollow in a length direction. Is inserted, the rotary vane type vacuum pump, characterized in that the vane is inserted into the hollow of the vane guide. 제 1항에 있어서,The method of claim 1, 상기 베인 가이드는 베인과 로터의 물림율이 최저 40%가 되는 길이로 로터의 직경방향으로 돌출되어지는 것을 특징으로 하는 회전식 베인형 진공펌프.The vane guide is a rotary vane-type vacuum pump, characterized in that protrudes in the radial direction of the rotor to a length such that the bite rate of the vanes and rotor is at least 40%.
KR1019990064272A 1999-12-29 1999-12-29 Rotational vane type pump KR20010061738A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7912029B2 (en) 2006-09-28 2011-03-22 Kabushiki Kaisha Toshiba Wireless communication system and wireless communication method
KR101031157B1 (en) * 2011-03-20 2011-04-27 이상가 Vane pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7912029B2 (en) 2006-09-28 2011-03-22 Kabushiki Kaisha Toshiba Wireless communication system and wireless communication method
US8483187B2 (en) 2006-09-28 2013-07-09 Kabushiki Kaisha Toshiba Wireless communication system and wireless communication method
KR101031157B1 (en) * 2011-03-20 2011-04-27 이상가 Vane pump

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