KR0175750B1 - Vane pump for a vehicle - Google Patents

Vane pump for a vehicle Download PDF

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Publication number
KR0175750B1
KR0175750B1 KR1019960079933A KR19960079933A KR0175750B1 KR 0175750 B1 KR0175750 B1 KR 0175750B1 KR 1019960079933 A KR1019960079933 A KR 1019960079933A KR 19960079933 A KR19960079933 A KR 19960079933A KR 0175750 B1 KR0175750 B1 KR 0175750B1
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KR
South Korea
Prior art keywords
pump
side plate
vane
suction port
assembly
Prior art date
Application number
KR1019960079933A
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Korean (ko)
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KR19980060571A (en
Inventor
박민호
Original Assignee
오상수
만도기계주식회사
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Priority to KR1019960079933A priority Critical patent/KR0175750B1/en
Publication of KR19980060571A publication Critical patent/KR19980060571A/en
Application granted granted Critical
Publication of KR0175750B1 publication Critical patent/KR0175750B1/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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0007—Radial sealings for working fluid
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F04C2230/604—Mounting devices for pumps or compressors
    • 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
    • F04C2240/20—Rotors
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

본 발명은 차량용 베인펌프의 구조 변경을 통해 펌프하우징 내의 펌프흡입구를 원주방향과 축방향의 크기를 확장하여 펌프의 흡입영역을 충분히 확보함으로서 펌프의 흡입성능을 향상시킴과 아울러 펌프카바와 측판간의 실링구조를 단순화하여 실링작업 등이 용이하게 이루어질 수 있게 한 것이다.The present invention improves the suction performance of the pump by increasing the circumferential direction and the axial direction of the pump suction port in the pump housing through the structural change of the vehicle vane pump, and improves the suction performance of the pump and the sealing structure between the pump cover and the side plate. By simplifying the sealing operation is to be made easily.

본 발명은 구동축(3)이 회전 운동함에 따라 로터(4)내의 베인(6)이 비출되어 캠링(5)에 안착된 상태로 회전 및 왕복 운동하는 것에 의해 작동유를 토출시키도록 된 유압펌프에 있어서, 펌프하우징(1)의 내측으로 장착되는 측판(7)의 반대쪽 면이 상기 측판(7)의 외직경보다 작은 크기로 되는 조립부(70)를 형성하여 측판(7)의 양쪽에는 웅덩이 모양의 펌프흡입구가 형성되고, 상기 조립부(70)는 펌프카바(2)의 조립부(20)에 끼워지도록 되고, 상기 측판(7)의 조립부(70)에 오일의 누유방지를 위한 O-링과 오일씰(9)이 개제되는 구성으로 되어 있다.The invention relates to a hydraulic pump in which the vane 6 in the rotor 4 is ejected as the drive shaft 3 rotates to eject hydraulic fluid by rotating and reciprocating in a state seated on the cam ring 5. In addition, the opposite side of the side plate (7) mounted to the inside of the pump housing (1) forms an assembly (70) having a size smaller than the outer diameter of the side plate (7) to form a puddle on both sides of the side plate (7) A pump suction port is formed, and the assembly unit 70 is fitted to the assembly unit 20 of the pump cover 2, and an O-ring for preventing leakage of oil in the assembly unit 70 of the side plate 7. And the oil seal 9 are arranged.

Description

차량용 베인펌프Car vane pump

일반적으로 차량의 파워스티어링 장치는, 전륜의 조향시 저속 주행 상태에서는 핸들이 가볍고 자연스럽게 큰 각도로 조향 되도록 하고, 고속주행 상태에서는 핸들이 무겁고 자연스럽게 작은 각도로 회전되도록 하여 운전자의 피로감을 덜어 주어 안전 운전을 도모하고 있다.In general, the vehicle's power steering device allows the steering wheel to be lightly and naturally rotated at a large angle at low speeds while steering the front wheel, and the steering wheel is rotated at a small and heavy angle at high speeds to reduce driver fatigue. To promote

유압을 이용한 파워스티어링은 전동 모터 및 엔진의 구동력에 의하여 오일탱크의 오일을 펌핑하는 유압펌프와, 조향시 유압실린더로 유압을 공급하는 로터리밸브를 구비하고 있다.Power steering using hydraulic pressure includes a hydraulic pump for pumping oil in an oil tank by a driving force of an electric motor and an engine, and a rotary valve for supplying hydraulic pressure to a hydraulic cylinder during steering.

상기 유압펌프는 제1도와 제2도에 나타낸 바와 같이 펌프하우징(1), 펌프카바(2), 구동축(3), 로터(4), 캠링(5), 베인(6), 측판(7) 및 압력판(8)으로 구성되어 로터(4)의 회전운동에 의해서 로터(4)내의 베인(6)이 비출되어 캠링(5)에 압착된 상태로 회전 및 왕복운동 하는 것에 의해 유체를 펌핑시키는 베인펌프로 이루어지고 있다.The hydraulic pump is pump pump (1), pump cover (2), drive shaft (3), rotor (4), cam ring (5), vanes (6), side plates (7) as shown in FIG. And a vane configured by the pressure plate 8 to pump the fluid by rotating and reciprocating the vane 6 in the rotor 4 by being rotated by the rotational motion of the rotor 4 and being pressed against the cam ring 5. It is made of a pump.

하지만 종래에는 캠링(5), 측판(7), 압력판(8)의 카트리지가 펌프하우징(1)에 장착될 때, 각 부품들의 크기와 직경이 거의 동일한 크기로 형성하고 있어 가능상 불필요한 부위 제3도의 (a)도에 나타낸 빗금친 부위로 인해 측판(7)이 조립되는 펌프하우징(1)내 펌프흡입구의 직경이 작아져 펌프의 흡입성능 저하를 초래하는 문제점이 있다.Conventionally, however, when the cartridges of the cam ring 5, the side plate 7, and the pressure plate 8 are mounted to the pump housing 1, the size and diameter of each of the parts are formed to be almost the same size, so that the unnecessary parts 3 Due to the hatched portion shown in (a) of FIG. 1, the diameter of the pump suction port in the pump housing 1 into which the side plate 7 is assembled is reduced, resulting in a decrease in suction performance of the pump.

또한, 펌프하우징(1)의 내측으로 조립되는 측판(7)과 펌프카바(2)가 면접촉하도록 조립함으로서 펌프카바(2)와 측판(7)이 밀착되는 조립부의 기밀을 유지하기 위한 씰링작업에 어려움을 안고 있다.In addition, the sealing work for maintaining the airtightness of the assembly portion in which the pump cover 2 and the side plate 7 is in close contact by assembling the side plate 7 and the pump cover 2 which are assembled inside the pump housing 1 so as to be in surface contact. Is having difficulty.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위해서, 베인펌프의 구조 변경을 통해 펌프하우징 내의 펌프흡입구를 원주방향과 축방향의 크기 및 펌프흡입구의 크기를 확장하여 펌프의 흡입성능을 향상시킴과 아울러 펌프카바와 측판간의 실링구조를 단순화하여 실링작업 등이 용이하게 이루어질 수 있게 한 것으로, 이를 첨부된 예시 도면을 참고하여 보다 상세히 설명하면 다음과 같다.In order to solve the above-mentioned problems, the present invention improves the suction performance of the pump by expanding the size of the pump suction port in the circumferential direction and the axial direction and the size of the pump suction port through the structure change of the vane pump. In addition, by simplifying the sealing structure between the pump cover and the side plate to facilitate the sealing operation, such as will be described in more detail with reference to the accompanying example drawings.

제1도는 종래 차량용 베임펌프의 예시도.1 is an exemplary view of a conventional vehicle vane pump.

제2도는 제1도의 A-A'선 단면도.2 is a cross-sectional view taken along the line AA ′ of FIG. 1.

제3도는 종래 측판의 예시도.3 is an illustration of a conventional side plate.

제4도는 본 발명에 따른 차량용 베인펌프의 예시도.4 is an exemplary view of a vane pump for a vehicle according to the present invention.

제5도와 제6도는 제4도의 B-B'선, C-C'선 단면도.5 and 6 are cross-sectional views taken along lines B-B 'and C-C' of FIG.

제7도는 본 발명에 따른 측판의 예시도.7 is an illustration of a side plate according to the invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 펌프하우징 2 : 펌프카바1: Pump housing 2: Pump cover

3 : 구동축 4 : 로터3: drive shaft 4: rotor

5 : 캠링 6 : 베인5: cam ring 6: vane

7 : 측판 8 : 압력판7: side plate 8: pressure plate

제4도는 본 발명에 따른 베인펌프의 일 예시도이고, 제5도와 제6도는 제4도에 표시한 B-B' 및 C-C'부 단면도이다.4 is an exemplary view of a vane pump according to the present invention, and FIG. 5 and FIG. 6 are cross-sectional views taken along the line B-B 'and C-C' shown in FIG.

본 발명에서는 펌프하우징(1), 펌프카바(2), 구동축(3), 로터(4), 캠링(5), 베인(6), 측판(7), 압력판(8)으로 되어 상기 구동축(3)이 회전 운동함에 따라 로터(4)의 베인(6)이 비출되어 캠링(5)에 압착된 상태로 회전 및 왕복 운동하는 것에 의해 작동유를 토출시키도록 된 유압펌프에 있어서, 펌프하우징(1)의 내측으로 장착되는 측판(7)의 반대쪽 면이 상기 측판(7)의 외직경보다 작은 크기로 되는 조립부(70)를 형성하여 측판(7)의 양쪽에는 웅덩이 모양의 펌프흡입구가 형성되고, 상기 조립부(70)는 펌프카바(2)의 조립부(20)에 끼워지며 조립되는 구성으로 됨을 특징으로 하고 있다.In the present invention, the pump housing (1), pump cover (2), drive shaft (3), rotor (4), cam ring (5), vanes (6), side plate (7), pressure plate (8) and the drive shaft (3) In the hydraulic pump configured to discharge the hydraulic oil by rotating and reciprocating in the state in which the vanes 6 of the rotor 4 are pressed out by the cam ring 5 in accordance with the rotational movement of the pump housing 1. The opposite side of the side plate (7) which is mounted to the inside of the side plate (7) to form a smaller size than the outer diameter of the side plate 7 to form a puddle pump suction port on both sides, The assembly unit 70 is characterized in that the assembly is fitted to the assembly portion 20 of the pump cover (2).

상기 측판(7)의 조립부(70)의 외주면에 오일의 누유방지를 위한 O-링과 오일씰(9)을 개제하는 구성으로 되고 있다.The O-ring and oil seal 9 for preventing oil leakage of oil are formed on the outer circumferential surface of the assembly portion 70 of the side plate 7.

이와 같이 구성된 본 발명은 펌프하우징(1)내에서 구동축(3)과 함께 로터(4)가 회전 운동함에 따라 원심력에 의해 로터(4)내의 베인(6)이 비출되어 캠링(5)에 압착된 상태로 회전 및 왕복운동 하는 것에 의해 유체를 펌핑시키는 것에 의해 작동유를 토출하는 것은 종래와 동일하다.According to the present invention configured as described above, as the rotor 4 rotates together with the drive shaft 3 in the pump housing 1, the vanes 6 in the rotor 4 are projected by the centrifugal force and compressed to the cam ring 5. Discharge of the working oil by pumping the fluid by rotating and reciprocating in the state is the same as in the prior art.

다만, 본 발명에서는 제7도에 나타낸 바와 같이 펌프하우징(1)내의 펌프흡입구가 축방향과 원주방향으로 확장 증대하고, 측판(7)의 직경보다 작게 형성한 조립부(70)가 펌프카바(2)의 조립부(20)에 끼워지는 조립식으로 구성함으로서 측판(7)과 펌프카바(7)간의 조립이 간편하게 이루어질 수 있다.However, in the present invention, as shown in FIG. 7, the pump suction port in the pump housing 1 expands and expands in the axial direction and the circumferential direction, and the assembly portion 70 formed smaller than the diameter of the side plate 7 is the pump cover ( The assembly between the side plate 7 and the pump cover 7 can be made simply by configuring the assembly type fitted to the assembly portion 20 of 2).

또한, 펌프카바(2)와 맞닿는 측판(7)의 일측면 즉, 제7도의 (b),(c)에 나타낸 바와 같이 측판(7)의 크기보다 작게 형성되는 조립부(70)만을 형성하므로서, 종래와 같이 펌프카바(2)와 측판(7)의 면 접촉으로 인해 기능상 불필요한 보강 부위는 모두 삭설되게 되어 측판(7)의 양쪽에는 제7도의 (a)에 나타낸 바와 같이 마치 웅덩이 모양으로 삭설되는 펌프흡입구가 형성함으로서 펌프하우징(1)에 측판(7)을 조립하더라도 펌프흡입구는 축방향으로 증대되어 펌프의 흡입성능이 크게 증대를 도모할 수 있는 것이다.In addition, only one side surface of the side plate 7 which is in contact with the pump cover 2, that is, as shown in (b) and (c) of FIG. 7 forms only the assembly portion 70 formed smaller than the size of the side plate 7 Due to the surface contact of the pump cover 2 and the side plate 7, as shown in the related art, all of the functionally unnecessary reinforcement parts are cut out, and both sides of the side plate 7 are cut in a puddle shape as shown in FIG. Since the pump suction port is formed, even if the side plate 7 is assembled to the pump housing 1, the pump suction port is increased in the axial direction, so that the suction performance of the pump can be greatly increased.

그리고 측판(7)과 펌프카바(2) 사이로 오일이 누설되는 것을 방지하는 씰링구조가 측판(7)의 조립부(70) 외주면에 오일씰(9)을 끼워지도록 조립한 후 O-링과 오일씰(9)이 개제된 측판(7)의 조립부(70)를 펌프카바(2)의 조립부(20)에 조립되는 조립구조를 가짐으로서 측판(7)과 펌프카바(2)의 실링작업이 간단하여 조립작업 또한 간편하게 이루어지는 장점이 있는 것이다.The sealing structure for preventing oil from leaking between the side plate 7 and the pump cover 2 is assembled to fit the oil seal 9 to the outer circumferential surface of the assembly portion 70 of the side plate 7, and then the O-ring and the oil seal ( The sealing part of the side plate 7 and the pump cover 2 is simple by having the assembly structure which the assembly part 70 of the side plate 7 with which 9) was opened is assembled to the assembly part 20 of the pump cover 2. The assembly work is also made easy.

이상에서 설명한 바와 같이 본 발명은, 베인펌프의 펌프하우징과 펌프카바의 구조변경을 통해 펌프하우징 내의 펌프흡입구를 축방향과 원주방향으로 크게형성하므로서 펌프성능이 크게 증대되고, 펌프카바와 측판이 조립식으로 이루어지므로서 펌프카바와 측판간의 씰링구조가 간단하여 작업성이 크게 향상되는 등의 효과가 있는 것이다.As described above, in the present invention, the pump performance of the pump housing and the pump cover of the vane pump are largely formed in the pump housing in the axial direction and the circumferential direction, thereby greatly increasing the pump performance, and the pump cover and the side plate are assembled. Since the sealing structure between the pump cover and the side plate is made simple, the workability is greatly improved.

본 발명은 차량의 파워스티어링 장치에 이용되는 베인펌프에 관한 것으로, 더욱 상세하게는 측판과 펌프카바의 구조를 개선하여 펌프하우징 내의 펌프흡입구를 원주방향과 축방향으로 증대시켜 펌프의 흡입 성능을 향상시킬 수 있게 한 것이다.The present invention relates to a vane pump for use in a power steering device of a vehicle, and more particularly, to improve the structure of the side plate and the pump cover to increase the pump suction port in the pump housing in the circumferential direction and the axial direction to improve the suction performance of the pump. It was made possible.

Claims (2)

구동축(3)이 회전 운동함에 따라 로터(4)의 베인(6)이 비출되어 캠링(5)에 압착된 상태로 회전 및 왕복 운동하는 것에 의해 작동유를 토출시키도록 된 유압펌프에 있어서, 상기 펌프하우징(1)의 내측으로 장착되는 반대쪽은 측판(7)의 외직경보다 작은 크기로 되는 조립부(70)를 형성하여 측판(7)의 양쪽에는 웅덩이 모양의 펌프흡입구가 형성되고, 상기 조립부(70)가 펌프카바(2)에 형성되는 조립부(20)에 끼워지며 조립되는 차량용 베인펌프.A hydraulic pump configured to discharge hydraulic fluid by rotating and reciprocating in a state in which the vanes 6 of the rotor 4 are ejected as the drive shaft 3 rotates and is compressed to the cam ring 5, wherein the pump The opposite side to be mounted to the inside of the housing 1 forms an assembling portion 70 having a size smaller than the outer diameter of the side plate 7 so that both sides of the side plate 7 are formed with a puddle-shaped pump suction port. Vehicle vane pump 70 is fitted to the assembly portion 20 formed in the pump cover (2). 제1항에 있어서, 상기 펌프카바(2)의 조립부(20)에 조립되는 측판(7)의 조립부(70)에 오일의 누유방지를 위한 O-링과 오일씰(9)이 개제됨을 특징으로 하는 차량용 베인펌프.According to claim 1, characterized in that the O-ring and oil seal (9) for preventing oil leakage in the assembly portion 70 of the side plate (7) assembled to the assembly portion 20 of the pump cover (2). Vehicle vane pumps.
KR1019960079933A 1996-12-31 1996-12-31 Vane pump for a vehicle KR0175750B1 (en)

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KR1019960079933A KR0175750B1 (en) 1996-12-31 1996-12-31 Vane pump for a vehicle

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KR0175750B1 true KR0175750B1 (en) 1999-10-01

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US8348645B2 (en) * 2009-08-11 2013-01-08 Woodward, Inc. Balanced pressure, variable displacement, dual lobe, single ring, vane pump

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