KR0123788Y1 - Jointing structure of oil pump and crankshaft - Google Patents

Jointing structure of oil pump and crankshaft Download PDF

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Publication number
KR0123788Y1
KR0123788Y1 KR2019950015830U KR19950015830U KR0123788Y1 KR 0123788 Y1 KR0123788 Y1 KR 0123788Y1 KR 2019950015830 U KR2019950015830 U KR 2019950015830U KR 19950015830 U KR19950015830 U KR 19950015830U KR 0123788 Y1 KR0123788 Y1 KR 0123788Y1
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KR
South Korea
Prior art keywords
crankshaft
oil pump
drive gear
symmetrically
sides
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KR2019950015830U
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Korean (ko)
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KR970002114U (en
Inventor
홍흔
Original Assignee
김태구
대우자동차주식회사
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Priority to KR2019950015830U priority Critical patent/KR0123788Y1/en
Publication of KR970002114U publication Critical patent/KR970002114U/en
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Publication of KR0123788Y1 publication Critical patent/KR0123788Y1/en

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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
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/06—Crankshafts
    • F16C3/14—Features relating to lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F01M2001/0253—Pressure lubrication using lubricating pumps characterised by the pump driving means
    • F01M2001/0269—Pressure lubrication using lubricating pumps characterised by the pump driving means driven by the crankshaft
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/22—Internal combustion engines

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

본 고안은 엔진에 부착되는 오일펌프와 크랭크샤프트의 체결구조에 관한 것으로, 특히 크랭크샤프트(1)가 구동기어(2)와 체결되는 접촉부위를 원형 단면에 곡면부(11)(12)의 양측을 깍은 두 개의 평면을 대칭되게 평면부(21)(22)로 형성시키고, 오일펌프의 구동기어(2)에도 크랭크샤프트(1)와 대응되게 반원형에 곡면부(11')(12')에 양측이 깍여 두 개의 평면부(21')(22')로 형성시켜 대칭되게 천공한 것으로, 오일펌프의 구동기어(2)와 크랭크샤프트(1)의 접촉면을 두 개의 평면부(21)(22)(21')(22')로 최소화시킨 것으로 동력의 전달시 접촉되는 면이 최소화되어 접촉시 발생되는 소음의 발생이 적게 되고, 제작시, 크랭크샤프트(1)의 외측을 육면에서 두면으로 줄여 생산단가가 절감되고 구동기어(2)의 생산 금형비도 절감되는 유용한 고안인 것이다.The present invention relates to a coupling structure of an oil pump and a crankshaft attached to an engine, and in particular, a contact portion at which the crankshaft 1 is engaged with the drive gear 2 in a circular cross section on both sides of the curved portions 11 and 12. The two planes which are cut off are formed in the plane parts 21 and 22 symmetrically, and in the drive gear 2 of the oil pump, the curved parts 11 'and 12' also have a semicircular shape corresponding to the crankshaft 1. It is formed by two planar portions 21 'and 22' by being cut into two sides and symmetrically perforated. The contact surfaces of the drive gear 2 and the crankshaft 1 of the oil pump are two planar portions 21 ( 22) (21 ') (22') minimizes the contact surface during power transmission to minimize noise generated during contact, and during manufacture, the outer side of the crankshaft (1) from two surfaces to two surfaces. It is a useful design that reduces the production cost and reduces the production mold cost of the drive gear (2).

Description

오일펌프와 크랭크샤프트의 체결구조Connection structure of oil pump and crankshaft

제1도는 종래 크랭크샤프트의 체결상태를 보인 개략도.1 is a schematic view showing a state of engagement of a conventional crankshaft.

제2도는 종래 오일펌프의 구동기어와 크랭크샤프트의 체결상태를 보인 요부확대 분해사시도.Figure 2 is an enlarged exploded perspective view of the main portion showing the state of the coupling between the drive gear and the crankshaft of the conventional oil pump.

제3도의 (a)는 종래에 따른 구동기어의 정면도.Figure 3 (a) is a front view of the drive gear according to the prior art.

(b)는 제2도의 a-a선 단면도.(b) is sectional drawing a-a line of FIG.

제4도는 제4도는 본 고안에 따른 오일펌프의 구동기어와 크랭크샤프트의 체결상태를 보인 요부확대 분해사시도.4 is an enlarged exploded perspective view showing a state in which the driving gear and the crankshaft of the oil pump according to the present invention.

제5도의 (c)는 본 고안에 따른 구동기어의 정면도.(C) of Figure 5 is a front view of the drive gear according to the present invention.

(d)는 제4도의 b-b선 단면도.(d) is sectional drawing b-b of FIG.

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

1 : 크랭크샤프트 2 : 구동기어1: Crankshaft 2: Drive Gear

11,12,11'12' : 곡면부 21,22,21',22' : 평면부11,12,11'12 ': curved part 21,22,21', 22 ': flat part

본 고안은 엔진에 부착되는 오일펌프와 크랭크샤프트의 체결구조에 관한 것으로, 더욱 상세하게는 크랭크샤프트의 회전력에 의한 오일펌프의 구동시 발생되는 소음을 제거하고 생산단가를 줄인 오일펌프와 크랭크샤프트의 체결구조에 관한 것이다.The present invention relates to a fastening structure of an oil pump and a crankshaft attached to an engine. More specifically, the oil pump and the crankshaft of the oil pump which eliminates noise generated when driving the oil pump by the rotational force of the crankshaft and reduce the production cost It relates to a fastening structure.

일반적으로 크랭크샤프트는 엔진내의 실린더를 복동하는 피스톤의 하단에 연결되어 있고, 실린더내로 흡입된 연료의 폭발로 가해진 직선성향의 힘을 회전력으로 바꾸어 변속기에 전달하여 자동차를 구동시키는 역할과 회전력으로 오일펌프를 구동시켜 각 엔진내부의 기관에 오일이 공급되게 하는 역할 등을 하였다.In general, the crankshaft is connected to the lower end of the piston to double-actuate the cylinder in the engine, and converts the linear force applied by the explosion of fuel sucked into the cylinder into a rotational force and transmits it to the transmission to drive the vehicle and the oil pump with the rotational force. To drive oil to the engines within each engine.

한편, 종래의 오일펌프(A)와 크랭크샤프트(B)의 체결구조는 첨부된 도면 제1도에 도시한 바와 같이, 엔진(C)의 내부에 설치된 크랭크샤프트(B)의 일단이 변속기에 연결되는 플라이휘일(D)이 체결되어 있고, 타단은 오일펌프(A)의 구동기어(E)에 끼워져 체결되어 있는 바, 크랭크샤프트(B)의 끝단에 구동기어(E)가 끼워져 체결된 구조를 보면 첨부된 도면 제2도 내지 제3도에 도시한 바와 같이, 육각단면을 갖는 크랭크샤프트(B)의 끝단에 육각형상으로 천공된 구동기어(E)가 끼워져 크랭크샤프트(B)의 회전력이 전달되는 구조로 동력전달시 크랭크샤프트(B)와 오일펌프(A)의 구동기어(E)의 접촉면이 육면으로 동력이 집중되어 육면이 구동기어(E)와 부딪쳐 소음이 발생되고 크랭크샤프트(B)와 오일펌프(A)의 구동기어(E)의 체결면을 육각으로 형성시 제작단가가 비싼 단점이 있었다.On the other hand, the conventional structure of the oil pump (A) and the crankshaft (B) as shown in the accompanying drawings, Figure 1, one end of the crankshaft (B) installed inside the engine (C) is connected to the transmission The flywheel (D) is fastened and the other end is fastened to the drive gear (E) of the oil pump (A), and the drive gear (E) is fitted to the end of the crankshaft (B). As shown in FIGS. 2 to 3, the driving gear E, which is perforated in a hexagonal shape, is fitted to the end of the crankshaft B having a hexagonal cross section, so that the rotational force of the crankshaft B is transmitted. When the power is transmitted, the contact surface of the crankshaft (B) and the drive gear (E) of the oil pump (A) is concentrated on the sixth surface, and the sixth surface hits the driving gear (E) to generate noise, and the crankshaft (B). And the manufacturing cost is high when the coupling surface of the drive gear E of the oil pump A is hexagonal. It was dots.

미설명부호 F는 피동기어로 상기한 구동기어(D)가 끼워지고, G는 오일펌프(A)의 커버로 오일펌프(A)의 배면에 체결되는 것이다.Reference numeral F denotes the driving gear D as the driven gear, and G is fastened to the rear surface of the oil pump A by the cover of the oil pump A.

이와 같은 종래의 문제점을 감안하여 안출한 것으로, 본 고안은 크랭크샤프트가 구동기어와 체결되는 접촉부위를 원형 단면에 양측이 깍인 두 개의 평면을 대칭되게 형성시키고, 오일펌프의 구동기어에도 크랭크샤프트와 대응되게 반원형에 양측이 깍여 두 개의 평면이 대칭되게 천공한 것으로, 오일펌프의 구동기어와 크랭크샤프트의 접촉면을 최소화시켜 소음이 발생되지 않게 하고 제작시 발생되는 비용을 최소화시키는데 그 목적이 있다.The present invention has been devised in view of the above-described problems, and the present invention forms two planes in which both sides of the crankshaft are engaged with the drive gear in a circular cross section symmetrically, and the crankshaft and the drive gear of the oil pump are symmetrically formed. Correspondingly, the two planes are symmetrically perforated in a semicircle to symmetrically perforate, and the purpose is to minimize noise generated by minimizing the contact surface between the driving gear and the crankshaft of the oil pump and to minimize the cost incurred in manufacturing.

이하, 본 고안의 목적을 달성하기 위한 바람직한 일 실시예를 첨부된 도면에 의거하여 상세히 설명하면 다음과 같아.Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment for achieving the object of the present invention as follows.

제4도 내지 제5도에 도시한 바와 같이, 본 고안은 크랭크샤프트(1)의 일단이 오일펌프의 구동기어(2)와 체결되는 구조에 있어서, 상기한 크랭크샤프트(1)와 구동기어(2)의 체결부위가 동력전달시 두 개의 평면으로 집중되게 크랭크샤프트(1)의 체결부위를 원형단면으로 곡면부(11)(12)를 형성시키고 곡면부(11)(12)의 양측을 깍아 두 개의 평면이 대칭되게 평면부(21)(22)를 형성시키며, 오일펌프의 구동기어(2)에도 크랭크샤프트(1)의 체결부위와 대응되게 내측을 천공한 것이다.As shown in FIGS. 4 to 5, the present invention has a structure in which one end of the crankshaft 1 is engaged with the drive gear 2 of the oil pump, and the crankshaft 1 and the drive gear ( 2) The curved parts 11 and 12 are formed in a circular cross section of the fastening part of the crankshaft 1 so that the fastening parts of 2) are concentrated in two planes during power transmission, and both sides of the curved parts 11 and 12 are cut off. The two planes are symmetrically forming the planar portions 21 and 22, and the inner side of the drive gear 2 of the oil pump is drilled to correspond to the fastening portion of the crankshaft 1.

이와 같이 구성된 본 고안의 작용·효과를 설명하면 다음과 같다.Referring to the operation and effects of the present invention configured as described above are as follows.

엔진내부에 크랭크샤프트(1)를 장착하여 미도시한 엔진의 일측으로 돌출된 크랭크샤프트(1)의 일단에 오일펌프의 구동기어(2)를 끼워넣고 미도시한 오일펌프를 엔진의 외측에 볼트체결하여 장착하면 되는 것이다.The crankshaft 1 is mounted inside the engine, and the driving gear 2 of the oil pump is inserted into one end of the crankshaft 1 protruding to one side of the engine not shown, and the oil pump not shown is bolted to the outside of the engine. It can be tightened and mounted.

즉, 오일펌프의 구동기어(2)가 z\f1 크랭크샤프트(1)의 외측을 원형 단면에 곡면부(11)(12)의 양측을 깍아 두 개의 평면이 대칭되게 평면부(21)(22)를 형성시킨 일단에 끼워지고 오일펌프는 엔진의 외측에 볼트로 고정된 것으로 크랭크샤프트(1)의 회전력이 오일펌프의 구동기어(2)에 전달되어 오일펌프는 미도시한 엔진하부의 오일팬에 저장된 오일을 흡입하여 엔진내부의 각 기관으로 순환시키게 되는 것이다.That is, the driving gear 2 of the oil pump cuts both sides of the curved portions 11 and 12 in the circular cross section on the outer side of the z \ f1 crankshaft 1 and the plane portions 21 and 22 so that the two planes are symmetrical. ), And the oil pump is bolted to the outside of the engine, and the rotational force of the crankshaft 1 is transmitted to the drive gear 2 of the oil pump so that the oil pump is not shown in the bottom of the engine. The oil stored in the air is circulated to each engine inside the engine.

한편, 오일펌프의 구동기어(2)와 크랭크샤프트(1)의 체결구조를 보면, 크랭크샤프트(1)의 일단이 두 개의 평면으로 형성된 평면부(21)(22)에 구동기어(2)의 천공된 평면부(21')(22')가 접하여 크랭크샤프트(1)의 회전력이 전달되는 것으로 크랭크샤프트(1)의 회전력이 평면부(21')(22')의 두면에 집중되어 회전력이 전달되는 것이다.On the other hand, when the driving gear 2 and the crankshaft 1 of the oil pump are connected, the one end of the crankshaft 1 is formed in two flat surfaces 21 and 22 of the driving gear 2. The perforated flat portions 21 'and 22' are in contact with each other to transmit the rotational force of the crankshaft 1, so that the rotational force of the crankshaft 1 is concentrated on both sides of the flat portion 21 'and 22'. It is delivered.

이와 같이 체결된 크랭크샤프트(1)와 오일펌프의 구동기어(2)는 회전력이 두면에 집중되어 회전력을 전달하게 되는 바, 동력의 전달시 접촉되는 면이 최소화되어 접촉시 발생되는 소음의 발생이 적게 되는 것이다.The crankshaft (1) and the driving gear (2) of the oil pump fastened in this way is to transmit the rotational force is concentrated on the two surfaces, the contact surface is minimized during the transmission of power to generate noise generated during contact Less.

또한, 크랭크샤프트와 구동기어의 체결되는 구조에 있어서도 종래에 비해 체결구조가 단순화된 것으로, 제작시 크랭크샤프트(1)의 외측을 육면에서 두면으로 줄여 생산단가가 절감되고 구동기어(2)의 생산 금형비도 절감되게 되는 것이다.In addition, the fastening structure of the crankshaft and the drive gear is simplified compared to the conventional structure, and the manufacturing cost is reduced by reducing the outer side of the crankshaft (1) from two sides to two sides during production, and production of the drive gear (2). Mold costs will also be reduced.

이와 같이 본 고안은 크랭크샤프트(1)가 구동기어(2)와 체결되는 접촉 부위를 원형 단면에 곡면부(11)(12)의 양측을 깍은 두 개의 평면을 대칭되게 평면부(21)(22)로 형성시키고, 오일펌프의 구동기어(2)에도 크랭크샤프트(1)와 대응되게 반원형의 곡면부(11')(12')에 양측이 깍여 두 개의 평면부(21')(22')로 형성시켜 대칭되게 천공한 것으로 오일펌프의 구동기어(2)와 크랭크샤프트(1)의 접촉면을 두 개의 평면부(21)(22)(21')(22')로 최소화시켜 소음이 발생되지 않게 되고 제작시 발생되는 비용을 최소화시킨 유용한 고안인 것이다.In this way, the present invention is a flat portion 21 in which the crankshaft 1 is contacted with the driving gear 2 in a circular cross section, and the two planes cut off both sides of the curved portions 11 and 12 are symmetrically. 22), and the driving gear 2 of the oil pump is also cut into two flat portions 21 'and 22' by semi-circular curved portions 11 'and 12' corresponding to the crankshaft 1, respectively. Symmetrically perforated to minimize the contact surface between the driving gear (2) and the crankshaft (1) of the oil pump with two flat parts (21) (22) (21 ') (22'). It is a useful design that minimizes the cost incurred during manufacturing.

Claims (1)

오일펌프와 크랭크샤프트의 체결구조에 있어서, 구동기어(2)와 체결되는 크랭크샤프트(1)의 일단을 서로 대칭된 두 개의 곡면부(11)(12)와, 서로 대칭된 두 개의 평면부(21)(22)를 갖도록 형성시키고, 상기 크랭크샤프트(1)의 일단이 끼워지도록 상기 오일펌프의 구동기어 중심부를 서로 대칭된 두 개의 곡면부(11')(12')에 서로 대칭된 두 개의 평면부(21')(22')를 갖도록 천공한 것을 특징으로 하는 오일펌프와 크랭크샤프트의 체결구조.In the coupling structure of the oil pump and the crankshaft, one end of the crankshaft (1) to be engaged with the drive gear (2) is symmetrical to each other two curved portions (11) (12), and two planar portions (symmetrical to each other) 21, 22, and two symmetrical to the two curved portions (11 ', 12') of the center of the drive gear of the oil pump so that one end of the crankshaft (1) is fitted A fastening structure of an oil pump and a crankshaft, which is drilled to have flat portions 21 'and 22'.
KR2019950015830U 1995-06-30 1995-06-30 Jointing structure of oil pump and crankshaft KR0123788Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019950015830U KR0123788Y1 (en) 1995-06-30 1995-06-30 Jointing structure of oil pump and crankshaft

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KR0123788Y1 true KR0123788Y1 (en) 1999-03-30

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