KR200150237Y1 - Oil pump gear structure - Google Patents

Oil pump gear structure Download PDF

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Publication number
KR200150237Y1
KR200150237Y1 KR2019940038763U KR19940038763U KR200150237Y1 KR 200150237 Y1 KR200150237 Y1 KR 200150237Y1 KR 2019940038763 U KR2019940038763 U KR 2019940038763U KR 19940038763 U KR19940038763 U KR 19940038763U KR 200150237 Y1 KR200150237 Y1 KR 200150237Y1
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KR
South Korea
Prior art keywords
external gear
oil pump
crankshaft
oil
housing
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Application number
KR2019940038763U
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Korean (ko)
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KR960023094U (en
Inventor
김연수
Original Assignee
정몽규
현대자동차주식회사
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Priority to KR2019940038763U priority Critical patent/KR200150237Y1/en
Publication of KR960023094U publication Critical patent/KR960023094U/en
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Publication of KR200150237Y1 publication Critical patent/KR200150237Y1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/02Pressure lubrication using lubricating pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/06Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/02Pressure lubrication using lubricating pumps
    • F01M2001/0253Pressure lubrication using lubricating pumps characterised by the pump driving means
    • F01M2001/0269Pressure lubrication using lubricating pumps characterised by the pump driving means driven by the crankshaft

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

Abstract

본 고안의 목적은 크랭크축 구동력에 의해 회전하는 내접기어와 치합하여 회전하는 외접기어의 외주면에 윤활홈을 형성하여 윤활을 향상하기 위한 오일펌프용 외접기어 구조를 제공하는데 있다.An object of the present invention is to provide an external gear structure for an oil pump for improving lubrication by forming a lubrication groove on the outer circumferential surface of a rotating external gear in engagement with a rotating internal gear by a crankshaft driving force.

이를 실현하기 위한 본 고안은 유압라인을 통해 엔진내의 각 회전부 및 습동부에 오일을 공급하는 오일펌프에 있어서, 크랭축 구동에 의하여 흡입구에서 배출구로 오일의 압송이 이루어지는 공간부를 형성한 하우징과, 이 하우징을 관통하는 크랭축에 설치된 내접기어와 치합하여 회전하는 외접기어와, 이 외접기어의 외주연에 일정깊이와 일정폭의 파형상으로 윤활홈이 형성되어 이루어지는 오일펌프용 외접기어 구조를 특징으로 한다.The present invention for realizing this, in the oil pump for supplying oil to the rotating part and the sliding part in the engine through the hydraulic line, the housing which forms a space in which the oil is pumped from the inlet to the outlet by the crankshaft drive, and An external gear structure that rotates in engagement with an internal gear installed on a crankshaft penetrating the housing, and an external gear structure for an oil pump in which lubrication grooves are formed in a waveform having a predetermined depth and a predetermined width on the outer circumference of the external gear. do.

Description

오일펌프용 외접기어 구조External gear structure for oil pump

제1도는 본 고안에 따른 오일펌프의 내, 외접기어를 도시한 사시도.1 is a perspective view showing the internal and external gears of the oil pump according to the present invention.

제2도는 제1도의 A-A를 도시한 도면.2 shows A-A of FIG. 1;

제3도는 본 고안에 따른 외접기어가 설치됨을 도시한 도면.3 is a view showing that the external gear according to the present invention is installed.

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

1 : 외접기어 3 : 하우징1: External gear 3: Housing

4 : 크랭축 7 : 내접기어4: crankshaft 7: internal gear

9 : 윤활홈9: lubrication groove

[고안의 분야][Field of design]

본 고안은 오일펌프용 외접기어 구조에 관한 것으로서, 더욱 상세하게는 크랭크축의 구동력에 의해 회전하는 내접기어와 치합하여 회전하는 외접기어의 외주면에 윤활홈을 형성하여 윤활을 향상하기 위한 오일펌프용 외접기어구조에 관한 것이다.The present invention relates to an external gear structure for an oil pump, and more specifically, an external oil pump for external lubrication to improve lubrication by forming a lubrication groove on the outer circumferential surface of a rotating external gear in engagement with a rotating internal gear by a crankshaft driving force. It relates to a gear structure.

[종래기술][Private Technology]

상기한 오일펌프(21)는 용량이 같은 다른 펌프에 비하여 얇게 할 수 있고, 구동 방법이 간단하며 크랭크축(22)에 의해 직접 구동할 수 있으므로 구동장치의 부품이 필요치 않게 되어 있다.The oil pump 21 can be made thinner than other pumps having the same capacity, the driving method is simple, and can be driven directly by the crankshaft 22, so that parts of the driving device are not necessary.

상기한 크랭크축(22)에 의해 직접 구동이 이루어짐은 내접기어(23)가 크랭크축(22)에 키이결합되어 외접기어(24)와 맞물리도록 설치되어 있다.Direct drive is performed by the crankshaft 22 as described above. The internal gear 23 is keyed to the crankshaft 22 to be engaged with the external gear 24.

그리고, 상기한 크랭크축(22)에 의해 직접 구동이 이루어지기 때문에 펌프(1)의 회전수는 6.000rpm 부근에서 운전되므로, 캐비테이션에 특히 주의해야하고 흡입구 배출구는 될 수 있는대로 넓게 하여 저항이 적은 모양으로 형성하고 있다.In addition, since the rotation speed of the pump 1 is operated at about 6.000 rpm, since the direct drive is made by the crankshaft 22, special attention should be paid to cavitation, and the inlet and outlet are as wide as possible, and the resistance is low. It is formed into a shape.

상기한 오일펌프는 크랭크축에 의해 직접구동이 이루어지기 때문에 외접기어는 항상 오일펌프의 하우징 내주면에 대해 마찰과, 소음이 발생하는 문제점이 있다.Since the oil pump is directly driven by the crankshaft, the external gear has a problem in that friction and noise are always generated with respect to the inner circumferential surface of the housing of the oil pump.

그리고 상기한 외접기어의 외주면과, 오일펌프의 하우징 내주면사이에 이물질의 유입하게 될때 기어소착이 일어나게 되어 오일의 공급 또는 작동이 제한받게 되는 문제점이 있다.In addition, when foreign matter flows in between the outer circumferential surface of the external gear and the inner circumferential surface of the housing of the oil pump, there is a problem in that gear squeezing occurs and the supply or operation of oil is restricted.

[고안의 요약]Summary of the proposal

본 고안의 목적은 크랭크축의 구동력에 의해 회전하는 내접기어와 치합하여 회전하는 외접기어의 외주면에 윤활홈을 형성하여 윤활을 향상하기 위한 오일펌프용 외접기어 구조를 제공하는데 있다.An object of the present invention is to provide an external gear structure for an oil pump for improving lubrication by forming a lubrication groove on the outer circumferential surface of the external gear that rotates by engaging the internal gear that rotates by the driving force of the crankshaft.

이를 실현하기 위한 본 고안은 유압라인을 통해 엔진내의 각 회전부 및 습동부에 오일을 공급하는 오일펌프에 있어서, 크랭축의 구동에 의하여 흡입구에서 배출구로 오일의 압송이 이루어지는 공간부를 형성한 하우징과, 이 하우징을 관통하는 크랭축에 설치된 내접기어와 치합하여 회전하는 외접기어와, 이 외접기어의 외주연에 일정깊이와 일정폭의 파형상으로 윤활홈이 형성되어 이루어지는 오일펌프용 외접기어 구조를 특징으로 한다.The present invention for realizing this, in the oil pump for supplying oil to each of the rotating part and the sliding part in the engine through the hydraulic line, the housing which forms a space in which the oil is pumped from the inlet to the outlet by the drive of the crankshaft, An external gear structure that rotates in engagement with an internal gear installed on a crankshaft penetrating the housing, and an external gear structure for an oil pump in which lubrication grooves are formed in a waveform having a predetermined depth and a predetermined width on the outer circumference of the external gear. do.

상기한 오일펌프가 크랭크축에 의해 회전하므로서 내접기어가 회전하게 되고, 이 내접기어와 맞물려 외접기어를 회전시켜 오일을 송출하게 된다.As the oil pump rotates by the crankshaft, the internal gear rotates, and meshes with the internal gear to rotate the external gear to deliver oil.

상기한 외접기어가 오일펌프의 하우징 내주면과 마찰하여 습동하게 됨에 따라 외접기어의 외주연에 파형상의 윤활홈을 일정깊이와 폭으로 형성하므로서 하우징의 내주면과 외접기어의 내주면사이는 윤활이 용이해지고, 그 사이에 이물질이 일나더라도 외접기어가 하우징에 소착되는 일 없기 때문에 자동변속기 어셈블리의 구동실패를 방지하게 된다.As the external gear slides by friction with the inner circumferential surface of the oil pump, lubrication is facilitated between the inner circumferential surface of the housing and the inner circumferential surface of the external gear by forming a wavy lubrication groove at a predetermined depth and width on the outer circumference of the external gear. In the meantime, even if foreign matter occurs, the external gear does not squeeze into the housing, thereby preventing a failure of the automatic transmission assembly.

[실시예]EXAMPLE

이하, 본 고안의 바람직한 일 실시예를 첨부한 도면에 의하여 더욱 상세히 설명한다.Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

제1도는 본 고안에 따른 오일펌프의 내, 외접기어를 도시한 도면이고, 제2도는 제1도의 A-A를 도시한 도면이다. 그리고 제3도는 본 고안에 따른 외접기어가 설치됨을 도시한 도면으로, 부호(1)은 외접기어를 지칭한다.1 is a view showing the internal and external gears of the oil pump according to the present invention, and FIG. 2 is a view showing A-A of FIG. 3 is a view showing that the external gear according to the present invention is installed, reference numeral 1 denotes the external gear.

상기한 외접기어(1)는 유압라인을 통해 엔진내의 각 회전부 및 습동부에 오일을 공급하는 오일펌프(2)에 설치하고 있다.The external gear 1 is installed in an oil pump 2 for supplying oil to each rotating part and sliding part in the engine via a hydraulic line.

상기한 오일펌프(2)의 하우징(3)에는 크랭축(4)의 구동에 의하여 오일의 압송이 이루어지도록 하는 흡입구(5)와 배출구(6)를 형성하고 있다.In the housing 3 of the oil pump 2, an inlet port 5 and an outlet port 6 are formed so that oil can be pumped by the drive of the crankshaft 4. As shown in FIG.

상기한 하우징(3)을 관통하는 크랭축(4)에 내접기어(7)를 설치하고 있고, 이 내접기어(7)와 맞물려 회전하는 외접기어(8)는 하우징(3)내를 회전하도록 하고 있다.The internal gear 7 is provided in the crankshaft 4 penetrating the housing 3, and the external gear 8 meshing with the internal gear 7 rotates so as to rotate inside the housing 3; have.

상기한 하우징(3)의 내주면을 미끄러지는 외접기어(1)에는 외주연에 일정깊이와 일정폭의 파형 형상으로 윤활홈(9)을 형성하고 있다.In the external gear 1 which slides the inner peripheral surface of the housing 3, the lubrication groove 9 is formed on the outer periphery with a wave shape of a predetermined depth and a predetermined width.

이와 같이 이루어지는 본 고안의 작용은 오일펌프(2)의 내접기어(7)가 키이 결합하고, 내접기어(7)가 외접기어(1)와 맞물려 회전하므로서 오일을 흡입구(5)에서 배출구(6)를 통해 압송하게 한다.The operation of the present invention made in this way is the internal gear (7) of the oil pump (2) is coupled to the key, the internal gear (7) is engaged with the external gear (1) to rotate the oil from the inlet (5) outlet (6) Let them be sent through.

상기한 내접기어(7)와 맞물려 회전하므로서 오일을 송출하게 되는 외접기어(1)는 회전이 고속으로 이루어짐으로서 하우징(3)의 내주면과 마찰하게 되어 발생하는 마찰열을 저감하면서 습동할 수 있도록 외접기어(1)의 외주연에 파형 형상으로 윤활홈(9)을 형성한다.The external gear 1, which rotates in engagement with the internal gear 7 and transmits oil, rotates at a high speed so that the external gear can slide while reducing frictional heat generated by friction with the inner peripheral surface of the housing 3. The lubrication groove 9 is formed in the wave shape at the outer periphery of (1).

상기한 윤활홈(9)은 외접기어(1)가 하우징(3)의 내주면을 슬라이딩할 때 유막의 형성을 용이하게 하므로서 구동이나 오일의 압송시 마모나 소음을 저감하게 한다.The lubrication groove 9 facilitates the formation of an oil film when the external gear 1 slides the inner circumferential surface of the housing 3, thereby reducing wear and noise during driving or oil feeding.

그리고 외접기어(1)의 외주면과 접하는 하우징(3)의 내주면에 이물질이 유입되더라도 이물질이 윤활홈(9)이 끼이게 되어 외접기어(1)의 소착을 방지하여 자동변속기 어셈블리의 구동 실패를 방지하게 된다.In addition, even if foreign matter enters the inner circumferential surface of the housing 3 in contact with the outer circumferential surface of the external gear 1, the foreign matter gets caught in the lubrication groove 9, thereby preventing the external gear 1 from seizing and preventing driving failure of the automatic transmission assembly. Done.

이러한 본 고안은 외접기어에 윤활홈을 형성하므로서 하우징 내주면과의 습동시 마모와 소음을 저감하게 되는 효과와 더불어 윤활의 향상과, 이물질 유입에 따른 소착을 방지하게 되는 효과가 있는 유용한 고안이다.This invention is a useful design that has the effect of reducing the wear and noise when sliding with the inner peripheral surface of the housing by forming a lubrication groove in the external gear, and the effect of improving the lubrication, and prevent the seizure due to the inflow of foreign matter.

Claims (1)

유압라인을 통해 엔진내의 각 회전부 및 습동부에 오일을 공급하는 오일펌프에 있어서, 크랭축(4)의 구동에 의하여 흡입구(5)에서 배출구(6)로 오일의 압송이 이루어지는 하우징(3)과, 이 하우징(3)을 관통하는 크랭축(4)에 설치된 내접기어(7)와 치합하여 회전하는 외접기어(1)와, 이 외접기어(1)의 외주연에 일정깊이와 일정폭의 파형 형상으로 윤활홈(9)이 형성되어 이루어지는 오일펌프용 외접기어 구조를 특징으로 한다.In the oil pump for supplying oil to each rotating part and the sliding part in the engine through the hydraulic line, the housing (3) for the oil is pumped from the inlet (5) to the outlet (6) by the drive of the crankshaft (4); And the external gear 1 rotating in engagement with the internal gear 7 provided on the crankshaft 4 penetrating the housing 3, and the waveform of a predetermined depth and a predetermined width at the outer periphery of the external gear 1; An external gear structure for an oil pump, in which a lubrication groove 9 is formed in a shape.
KR2019940038763U 1994-12-30 1994-12-30 Oil pump gear structure KR200150237Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019940038763U KR200150237Y1 (en) 1994-12-30 1994-12-30 Oil pump gear structure

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Application Number Priority Date Filing Date Title
KR2019940038763U KR200150237Y1 (en) 1994-12-30 1994-12-30 Oil pump gear structure

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KR960023094U KR960023094U (en) 1996-07-20
KR200150237Y1 true KR200150237Y1 (en) 1999-07-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101749830B1 (en) * 2015-11-26 2017-06-21 현대 파워텍 주식회사 Driven Torque Decreasing type Oil Pump and Automatic Transmission thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101749830B1 (en) * 2015-11-26 2017-06-21 현대 파워텍 주식회사 Driven Torque Decreasing type Oil Pump and Automatic Transmission thereof

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KR960023094U (en) 1996-07-20

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