KR100192911B1 - Crankshaft - Google Patents

Crankshaft Download PDF

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Publication number
KR100192911B1
KR100192911B1 KR1019950061560A KR19950061560A KR100192911B1 KR 100192911 B1 KR100192911 B1 KR 100192911B1 KR 1019950061560 A KR1019950061560 A KR 1019950061560A KR 19950061560 A KR19950061560 A KR 19950061560A KR 100192911 B1 KR100192911 B1 KR 100192911B1
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KR
South Korea
Prior art keywords
gear
shaft
piston
crankshaft
present
Prior art date
Application number
KR1019950061560A
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Korean (ko)
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KR970045845A (en
Inventor
박성엽
Original Assignee
류정열
기아자동차주식회사
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Priority to KR1019950061560A priority Critical patent/KR100192911B1/en
Publication of KR970045845A publication Critical patent/KR970045845A/en
Application granted granted Critical
Publication of KR100192911B1 publication Critical patent/KR100192911B1/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
    • F16C3/20—Shape of crankshafts or eccentric-shafts having regard to balancing
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Gears, Cams (AREA)
  • Gear Transmission (AREA)

Abstract

본 발명은 자동차용 크랭크샤프트에 관한 것으로, 톱니바퀴가 형성된 치차축이 서로 맞물려 회전되도록 설치되어 발란스웨이트가 없이도 크랭크샤프트의 발란스를 유지할 수 있어, 중량이 적게 나가도록 설치된 것이다.The present invention relates to a crankshaft for automobiles, wherein gear teeth formed with gears are rotated in engagement with each other to maintain the balance of the crankshaft even without a balance weight, so that the weight is reduced.

Description

자동차용 크랭크샤프트Crankshaft for Automotive

제1도는 본 발명에 따른 크랭크샤프트의 정면도.1 is a front view of the crankshaft according to the present invention.

제2도는 본 발명에 따른 치차의 고정구조를 나타내는 부분확대도.2 is a partially enlarged view showing a fixing structure of a gear according to the present invention.

제3도는 제2도의 A-A선 단면도.3 is a cross-sectional view taken along the line A-A of FIG.

제4도는 본 발명에 따른 치차의 고정구조를 나타내는 분해사시도.Figure 4 is an exploded perspective view showing a fixed structure of the gear according to the present invention.

제5도는 본 발명에 따라 치차축에 오일이 공급되는 상태를 설명하는 개략도.5 is a schematic diagram illustrating a state in which oil is supplied to a tooth shaft according to the present invention.

제6도는 종래 기술에 따른 크랭크샤프트의 정면도.6 is a front view of a crankshaft according to the prior art.

제7도는 종래 기술에 따른 크랭크샤프트의 메인저어널고정구조를 나타내는 분해 사시도이다.7 is an exploded perspective view showing the main journal fixing structure of the crankshaft according to the prior art.

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

1 : 제1피스톤 2 : 제1축1: first piston 2: 1st axis

3 : 제1기어 4 : 제2축3: first gear 4: second axis

5 : 제2기어 6 : 고정수단5: second gear 6: fixing means

7 : 제2피스톤 8 : 제3기어7: 2nd piston 8: 3rd gear

9 : 제3피스톤 10 : 제4기어9: 3rd piston 10: 4th gear

11 : 제4피스톤 12 : 고정축11: fourth piston 12: fixed shaft

13 : 블럭 14 : 베어링메탈13: block 14: bearing metal

15 : 캡 16 : 보울트15: Cap 16: Bolt

본 발명은 자동차용 크랭크샤프트에 관한 것으로, 특히 크랭크샤프트의 밸런스유지가 용이함은 물론, 중량저감을 얻을 수 있도록 된 자동차용 크랭크샤프트에 관한 것이다.The present invention relates to a crankshaft for automobiles, and more particularly, to a crankshaft for automobiles, which is easy to maintain the balance of the crankshaft, as well as a weight reduction.

종래의 자동차용 크랭크샤프트는 제6도와 제7도에 도시된 것과같이, 플라이휘일로부터 전달된 회전력이 전달되는 메인저어널(21)과 이 메인저어널(21)에서 편심된 위치로 일체로 형성되어 커텍팅로드(22)를 매개로 피스톤(23)에 직선왕복운동을 주도록 된 핀저어널(24)로 이루어 진다.Conventional automotive crankshaft is formed integrally with the main journal 21 and the eccentric position in the main journal 21, the rotational force transmitted from the flywheel, as shown in Figure 6 and 7 It is made of a pin journal 24 to give a straight reciprocating motion to the piston 23 via the connecting rod 22.

한편, 이 핀저어널(24)의 회전운동시 발생되는 언바란스를 제거하기 위해 핀저어널(24)의 반대편에 발란스웨이트(25)가 설치된 구조로 되어 있다.On the other hand, in order to remove the unbalance generated during the rotational movement of the pin journal 24, the balance weight 25 is provided on the opposite side of the pin journal 24.

여기서 상기 메인저어널(21)은, 블록(26)에 형성된 반달홈(26a)으로 안착됨과 더불어 반달홈(27a)이 형성된 캡(28)으로 덮어져 보울트(29)로 체결되어 고정되는 구조로 되어 있다.Here, the main journal 21 is seated with a half moon groove (26a) formed in the block 26, and covered with a cap 28 formed with a half moon groove (27a) is fastened to the bolt 29 is fixed to the structure It is.

그러나, 이러한 구조는 상기 발란스웨이트(25)에 의한 발란스율의 향상에 한계가 있고, 상기 발란스웨이트(25)의 부착에 의한 중량이 상승되는 문제점이 있었다.However, such a structure has a limitation in improving the balance ratio by the balance weight 25, and there is a problem in that the weight due to the attachment of the balance weight 25 is increased.

이에 본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 톱니바퀴가 형성된 치차축이 서로 맞물려 회전되도록 설치되어 발란스웨이트가 없어도 크랭크샤프트의 발란스를 유지할 수 있도록 된 자동차용 크랭크샤프트를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, it is provided that the toothed shaft is formed so that the gear shafts are meshed with each other to rotate to provide a crankshaft for the car that can maintain the balance of the crankshaft even without the balance weight There is a purpose.

상기한 바와 같은 목적을 달성하기 위한 본 발명은, 동력축과 연결됨과 더불어 제1피스톤이 설치된 제1축에 제1기어가 설치되고, 이 제1기어와 맞물려 돌아가도록 제2축에 제2기어가 고정수단을 매개로 설치됨과 더불어 제2피스톤이 설치되며, 상기 제1축과 동일한 위치에 상기 제2기어와 맞물려 회전되도록 제3기어가 양단에 설치됨과 더불어 제3피스톤가 설치되는 한편, 상기 제3기어와 맞물려 회전되도록 제4기어가 설치됨과 더불어 제4피스톤이 설치되는 고정축으로 이루어진 구조로 되어 있다.The present invention for achieving the above object, the first gear is connected to the power shaft and the first piston is installed on the first shaft is installed, the second gear to the second shaft to mesh with the first gear is returned. The second piston is installed along with the fixing means, the third gear is installed at both ends so as to rotate in engagement with the second gear at the same position as the first shaft, and the third piston is installed. The fourth gear is installed to rotate in engagement with the three gears, and the fixed shaft is installed with the fourth piston.

이하 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 발명에 따른 크랭크샤프트의 정면도이고, 제2도는 본 발명에 다른 치차의 고정구조를 나타내는 부분확대도이며, 제3도는 제2도의 A-A선 단면도이고, 제4도는 본 발명에 따른 치차의 고정구조를 나타내는 분해사시도이다.1 is a front view of a crankshaft according to the present invention, FIG. 2 is a partially enlarged view showing a fixing structure of a gear according to the present invention, FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG. 4 is a gear according to the present invention. An exploded perspective view showing the fixed structure of.

본 발명은, 동력축과 연결됨과 더불어 제1피스톤(1)이 설치된 제1축(2)에 제1기어가 설치되고, 이 제1기어(3)와 맞물려 돌아가도록 제2축(4)에 제2기어(5)가 고정수단을 매개로 설치됨과 더불어 제2피스톤(7)이 설치되며, 상기 제1축(2)과 동일한 위치에 상기 제2기어(5)와 맞물려 회전되도록 제3기어(8)가 양단에 설치됨과 더불어 제3피스톤(9)갈 설치되는 한편, 상기 제3기어(8)와 맞물려 회전되도록 제4기어(10)가 설치됨과 더불어 제4피스톤(11)이 설치되는 고정축(12)으로 이루어져 있다. (제1도 참조)According to the present invention, a first gear is installed on a first shaft (2) provided with a first piston (1) and connected to a power shaft, and is provided on the second shaft (4) to be engaged with the first gear (3). The second gear 5 is installed through the fixing means, and the second piston 7 is installed, and the third gear is rotated in engagement with the second gear 5 at the same position as the first shaft 2. (8) is installed at both ends and the third piston (9) is installed, while the fourth gear (10) is installed and the fourth piston (11) is installed so as to rotate in engagement with the third gear (8). It consists of a fixed shaft (12). (See Figure 1)

여기서 상기 제1,2,3,4기어(3,5,8,10)는 제4도에서와 같이 고정수단(6), 즉 블록(13)에 형성된 고정부(13a)와 베어링메탈(14) 및 캡(15)과 다수개의 보울트(16)를 매개로 맞물려 회동되도록 설치되어 있다.(제4도 참조)The first, second, third, and fourth gears 3, 5, 8, and 10 are formed in the fixing means 6, that is, the fixing part 13a and the bearing metal 14, as shown in FIG. And the cap 15 and the plurality of bolts 16 are rotated in engagement with each other (see Fig. 4).

미설명부호로 13b,15a는 치차축이 베어링메탈(14)을 매개로 회전가능하게 설치되는 반달홈이고, 13c는 상기 제2,4기어(5,10)가 회전가능하도록 형성된 도피홈이며, 15b는 상기 제1,3기어(3,8)가 회전가능하도록 형성된 도피홈이다.13b and 15a are half moon grooves in which the gear shafts are rotatably installed through the bearing metal 14, and 13c are escape grooves formed so that the second and fourth gears 5 and 10 are rotatable. 15b is an escape groove formed so that the first and third gears 3 and 8 are rotatable.

베어링메탈(14)은 블록(13)과 캡(15)에 파여진 반달홈(13b,15a)의 내측으로 끼워져 제1축(2)과 제2축(4)이 서로 떨어진 위치에서도 원활한 회전운동이 이루어 지도록 하는 베어링역할의 부싱부재이다.The bearing metal 14 is inserted into the half moon grooves 13b and 15a recessed in the block 13 and the cap 15 so that the rotational motion is smooth even in a position where the first shaft 2 and the second shaft 4 are separated from each other. This is the bushing member of the bearing role to make.

또한, 상기 제5도에 도시된 바와 같이 기어(3,8)가 형성된 축에는 축방향에 직각으로 오일공급구멍(2a)이 형성되어 오일공금통로(A)를 통해 공급되는 오일이 아래쪽으로 공급되도록 되어 있다.In addition, as shown in FIG. 5, an oil supply hole 2a is formed at an axis perpendicular to the axial direction on the shaft on which the gears 3 and 8 are formed so that the oil supplied through the oil supply passage A is supplied downward. It is supposed to be.

따라서, 상기 제1기어(3)가 우회전하면 제2기어(5)는 좌회전하고, 제3기어(8)는 우회전, 제4기어(10)는 좌회전함으로써 상기 피스톤의 왕복운동이 트랜스밋션에 회전운동으로 전달하고, 핀저어널을 서로 반대쪽으로 회전시킴으로써 발란스웨이트가 없이도 크랭크샤프트의 발란스를 유지할 수 있게 된다.Accordingly, when the first gear 3 rotates to the right, the second gear 5 rotates to the left, the third gear 8 rotates to the right, and the fourth gear 10 rotates to the left so that the reciprocating motion of the piston rotates at the transmission. By transmitting it in motion and rotating the pin journal in opposite directions, it is possible to maintain the balance of the crankshaft without the need for a balance weight.

이상 설명한 바와 같이 본 발명에 의하면, 상기 톱니바퀴가 형성된 치차축이 서로 맞물려 회전되도록 설치되어 발란스웨이트가 없이도 크랭크샤프트의 발란스를 유지할 수 있어, 중량이 적게 나가는 효과가 있다.As described above, according to the present invention, the gear shafts in which the cogwheels are formed are installed to be engaged with each other to rotate, so that the balance of the crankshaft can be maintained even without a balance weight, thereby reducing the weight.

Claims (2)

동력축과 연결됨과 더불어 제1피스톤(1)이 설치된 제1축(2)에 제1기어(3)가 설치되고, 이 제1기어(3)와 맞물려 돌아가도록 제2축(4)에 제2기어(5)가 고정수단(6)을 매개로 설치됨과 더불어 제2피스톤(7)이 설치되며, 상기 제1축(2)과 동일한 위치에 상기 제2기어(5)와 맞물려 회전되도록 제3기어(8)가 양단에 설치됨과 더불어 제3피스톤(9)가 설치되는 한편, 상기 제3기어(8)와 맞물려 회전되도록 제4기어(10)가 설치됨과 더불어 제4피스톤(11)이 설치되는 고정축(12)으로 이루어진 자동차용 크랭크샤프트.The first gear 3 is installed on the first shaft 2, which is connected to the power shaft and on which the first piston 1 is installed, and the second shaft 4 is engaged with the first gear 3 to return. The second gear 5 is installed through the fixing means 6 and the second piston 7 is installed, and the second gear 5 is rotated in engagement with the second gear 5 at the same position as the first shaft 2. The third gear 8 is installed at both ends, and the third piston 9 is installed, while the fourth gear 10 is installed to rotate in engagement with the third gear 8, and the fourth piston 11 is installed. Automotive crankshaft consisting of a fixed shaft (12) to be installed. 제1항에 있어서, 상기 제1,2,3,4기어(3,5,8,10)는 블록(13)에 형성된 고정부(13a)와 베어링메탈(14) 및 캡(15)과 다수개의 보울트(16)를 매개로 맞물려 회동되도록 설치된 것을 특징으로 하는 자동차용 크랭크샤프트.2. The first, second, third, and fourth gears (3, 5, 8, 10) of claim 1, wherein the first, second, third, and fourth gears (3, 5, 8, 10) have a plurality of fixing parts (13a), bearing metals (14), and caps (15) formed in the block (13). Crankshaft for automobiles, characterized in that installed to rotate by engaging the two bolts (16).
KR1019950061560A 1995-12-28 1995-12-28 Crankshaft KR100192911B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950061560A KR100192911B1 (en) 1995-12-28 1995-12-28 Crankshaft

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Application Number Priority Date Filing Date Title
KR1019950061560A KR100192911B1 (en) 1995-12-28 1995-12-28 Crankshaft

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KR970045845A KR970045845A (en) 1997-07-26
KR100192911B1 true KR100192911B1 (en) 1999-06-15

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