KR100189379B1 - Connecting rod - Google Patents
Connecting rod Download PDFInfo
- Publication number
- KR100189379B1 KR100189379B1 KR1019950030666A KR19950030666A KR100189379B1 KR 100189379 B1 KR100189379 B1 KR 100189379B1 KR 1019950030666 A KR1019950030666 A KR 1019950030666A KR 19950030666 A KR19950030666 A KR 19950030666A KR 100189379 B1 KR100189379 B1 KR 100189379B1
- Authority
- KR
- South Korea
- Prior art keywords
- connecting rod
- end portion
- small end
- piston
- oil
- Prior art date
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Classifications
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
- F16J1/16—Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins
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- 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
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
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- 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
- F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
- F01M2001/066—Connecting rod with passageways
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
본 발명은 기관에 장착되는 커넥팅로드의 구조에 관한 것으로서, 커넥팅로드의 가공이 용이하고 제작비용이 저감되도록 하기 위해, 상단부에 일정직경의 소단부(20a)가 형성되고 하단에 캡(21)에 의해 결합되는 대단부(20b)가 형성되어 상기 소단부가 실린더에 장착되는 피스톤(10)의 피스톤핀(11)에 회전 가능하게 연결되고, 대단부(20b)가 상기 실린더 하부에 장치되는 크랭크축에 회전 가능하게 연결되는 것에 있어서, 상기 손단부에 내주면과 외부면이 통공되도록 하는 오일유입구멍(20d)이 형성되도록 하여, 소단부(20a)의 배어링부와 피스톤핀(11) 사이에 발생되는 부압에 의해 오일유입구멍(20d)으로 비산된 오일이 흡입되고, 흡입된 오일에 의해 소단부(20a)의 냉각 및 윤활작용을 하도록 하며, 오일유입구멍(20d)의 길이가 비교적 짧게 되고 가공공수가 저감되도록 하는 커넥팅로드의 구조이다.The present invention relates to a structure of a connecting rod mounted on an engine, in order to facilitate the processing of the connecting rod and to reduce the manufacturing cost, a small end portion 20a having a predetermined diameter is formed at an upper end thereof, and a cap 21 at the lower end thereof. A crank shaft having a large end portion 20b coupled thereto is rotatably connected to the piston pin 11 of the piston 10 mounted on the cylinder, and the large end portion 20b is installed under the cylinder. In the rotatably connected to, the oil inlet hole (20d) for the inner circumferential surface and the outer surface is formed in the hand end portion is formed between the bearing portion and the piston pin 11 of the small end portion (20a) The oil scattered into the oil inlet hole 20d by the negative pressure is sucked in, and the sucked oil allows cooling and lubrication of the small end 20a, and the length of the oil inlet hole 20d becomes relatively short, Fall reduction The structure of the connecting rod so.
Description
제1도는 일반적인 기관의 커넥팅로드 및 그 연결구조를 나타내는 분해 사시도이다.1 is an exploded perspective view showing a connecting rod of a general engine and its connection structure.
제2도는 종래의 커넥팅로드의 단면도이다.2 is a cross-sectional view of a conventional connecting rod.
제3도는 본 발명의 실시예에 다른 커넥팅로드의 부분 단면도이다.3 is a partial cross-sectional view of a connecting rod according to an embodiment of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 피스톤 11 : 피스톤핀10: piston 11: piston pin
20 : 커넥팅로드 20a : 소단부20: connecting rod 20a: small end
20b : 대단부 20d :오일유입구멍20b: large end 20d: oil inlet hole
본 발명은 기관에 장착되는 커넥팅 로드(connecting rod)의 구조에 관한 것으로서, 더욱 상세하게 말하자면 커넥팅 로드의 윤활구조를 개선하여 가공이 용이하도록하고, 제작비용이 저감되도록 하는 커넥팅 로드의 구조에 관한 것이다.The present invention relates to a structure of a connecting rod mounted on an engine, and more particularly, to a structure of a connecting rod that improves the lubrication structure of the connecting rod to facilitate processing and to reduce manufacturing costs. .
일반적으로 기관은 제1도에 도시되는 바와 같이 실린더(도시생략)의 내부에 상하 이동 가능하게 장착되는 피스톤(10)의 저면부에 커넥팅로드(20)의 상단부가 회전 가능하게 연결되고, 상기 커넥팅로드(20)의 하단부가 크랭크축(도시생략)에 회전 가능하게 연결되도록 되어, 실린더 내부의 연소작용에 의해 발생되는 열에너지가 피스톤(10)에 의해 왕복운동으로 변환되고, 피스톤(10)의 왕복운동이 커넥팅로드(20)와 크랭크축에 의해 회전운동으로 변환되어 출력되도록 되어 있다.In general, the engine is rotatably connected to the upper end of the connecting rod 20 to the bottom surface of the piston 10 which is mounted to the inside of the cylinder (not shown) to move up and down as shown in FIG. The lower end of the rod 20 is rotatably connected to the crankshaft (not shown), so that thermal energy generated by the combustion action inside the cylinder is converted into reciprocating motion by the piston 10, and the reciprocating of the piston 10 is performed. The motion is converted into the rotational motion by the connecting rod 20 and the crankshaft to be output.
여기에서, 종래의 커넥팅로드(20)는 상단부에 피스톤(10)의 피스톤핀(11)이 회전 가능하게 관통되도록 일정직경의 소단부(20a)가 형성되고, 하단부에 크랭크축의 크랭크핀이 회전 가능하게 체결되는 대단부(20b)가 캡(21)에 의해 분해 가능하게 형성되며, 소반부(20a)와 대단부(20b) 사이의 내부에 장공의 오일통로(20c)가 관통되게 형성되어있다.Here, the conventional connecting rod 20 has a small end portion 20a having a predetermined diameter so that the piston pin 11 of the piston 10 is rotatably penetrated at the upper end, and the crank pin of the crankshaft is rotatable at the lower end. The large end portion 20b to be fastened is formed to be decomposable by the cap 21, and the oil passage 20c of the long hole penetrates between the small half portion 20a and the large end portion 20b.
이러한 종래의 커넥팅로드는 오일통로(20c)의 하부가 크랭크축에 형성된 오일통로와 연통되어 기관의 작동중 크랭크축의 오일통로를 통해 압송되는 오일이 커넥팅로드(20)의 대단부(20b)를 윤활하고, 오일통로(20c)를 통해 소단부(20a)로 이송되어 소단부(20a) 및 피스톤핀(11)의 외주면을 윤활하며, 피스톤(10)을 냉각하도록 한다.In the conventional connecting rod, the lower portion of the oil passage 20c communicates with the oil passage formed on the crankshaft so that the oil being pushed through the oil passage of the crankshaft during operation of the engine lubricates the large end 20b of the connecting rod 20. And, it is transferred to the small end portion (20a) through the oil passage (20c) to lubricate the outer peripheral surface of the small end portion (20a) and the piston pin 11, to cool the piston (10).
그러나 이러한 종래의 기관의 커넥팅로드는, 장공의 오일통로(20c)가 커넥팅로드(20)의 대단부(20b)와 소단부(20a)에 연통되게 형성되기 때문에, 제작이 용이하지 않고 이로인해 가공성이 불량하며, 단가가 상승되는 문제점이 있었다.However, the connecting rod of such a conventional engine is formed in such a way that the oil passage 20c of the long hole is formed in communication with the large end 20b and the small end 20a of the connecting rod 20. This was bad, there was a problem that the unit price is increased.
본 발명의 목적은 상기와 같은 종래의 문제점을 해소하기 위한 것으로서, 피스톤에 연결되는 커넥팅로드의 소단부 내주면과 외주면 사이에 오일유입구멍을 형성하여, 오일유입구멍의 길이가 비교적 짧게 되고 가공공수가 저감되도록 하는 커넥팅로드의 구조를 제공하는데 있다.An object of the present invention is to solve the conventional problems as described above, by forming an oil inlet hole between the inner peripheral surface and the outer peripheral surface of the small end of the connecting rod connected to the piston, the length of the oil inlet hole is relatively short and It is to provide a structure of the connecting rod to be reduced.
이하, 본 고안이 기술분야에서 통상의 지식을 가진 자가 본 고안을 용이하게 실시할 수 있을 정도로 상세히 설명하기 위하여, 본 고안의 가장 바람직한 실시예를 첨부된 도면을 참조로 하여 설명하기로 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, the most preferred embodiment of the present invention in order to be described in detail so that those skilled in the art can easily implement the present invention.
본 발명의 기관도 제1도에 도시되는 바와 같이, 실린더(도시생략)의 내부에 상하 이동 가능하게 장착되는 피스톤(10)의 저면부에 커넥팅로드(20)의 상단부가 회전 가능하게 연결되고, 커넥팅로드(20)의 하단부가 크랭크축(도시생략)에 회전 가능하게 연결되도록 되어, 실린더 내부의 연소작용에 의해 발생되는 열에너지가 피스톤(10)에 의해 왕복운동으로 변환되고, 피스톤(10)의 왕복운동이 커넥팅로드(20)와 크랭크축에 의해 회전운동으로 변환되어 출력되도록 되며, 커넥팅로드(20)의 상단부에 피스톤(10)의 피스톤핀(11)이 회전 가능하게 관통되도록 일정직경의 소단부(20a)가 형성되고, 하단부에 크랭크축의 크랭크핀이 회전 가능하게 체결되는 대단부(20b)가 캡(21)에 의해 분해 가능하게 형성된다.As shown in FIG. 1, the upper end of the connecting rod 20 is rotatably connected to the bottom surface of the piston 10 mounted to the inside of a cylinder (not shown) so as to be movable up and down. The lower end of the connecting rod 20 is rotatably connected to the crankshaft (not shown), so that thermal energy generated by the combustion action inside the cylinder is converted into reciprocating motion by the piston 10, and the The reciprocating motion is converted into a rotational motion by the connecting rod 20 and the crankshaft to be output, and the small diameter of a predetermined diameter so that the piston pin 11 of the piston 10 rotatably penetrates the upper end of the connecting rod 20. An end portion 20a is formed, and a large end portion 20b to which the crank pin of the crankshaft is rotatably fastened to the lower end portion is formed so as to be disassembled by the cap 21.
단, 본 발명은 제3도에 도시되는 바와 같이, 커넥팅로드(20)의 소단부(20a)에 내주면과 외부면이 통공되도록 하는 오일유입구멍(20d)이 일정 간격을 두고 형성됨을 그 기술적 구성상의 기본 특징으로 한다.However, in the present invention, as shown in FIG. 3, the oil inlet hole 20d for allowing the inner circumferential surface and the outer surface to pass through the small end portion 20a of the connecting rod 20 is formed at regular intervals. Basic features of the award.
여기에서, 오일유입구멍(20d)은 일정 직경으로 형성하고, 외부면쪽이 확개되도록하며, 소단부(20a)의 하부쪽에 위치되도록 형성하여, 비산된 오일의 유입이 용이하도록 함이 바람직하다.Here, the oil inflow hole (20d) is formed to a predetermined diameter, the outer surface side is expanded, and formed to be located on the lower side of the small end portion (20a), it is preferable to facilitate the inflow of scattered oil.
이와 같이 구성되는 본 발명은 기관이 작동되면 기관의 운동부에서 기관의 저면 오일팬에 저장된 오일을 비산시켜 실린더 내벽면과 피스톤(10)의 저면 및 커넥팅로드(20) 등이 비산된 오일에 의해 윤활되도록 하고, 이때 커넥팅로드(20) 소단부(20a)의 베어링부와 피스톤핀(11) 사이에 부압이 발생되어 커넥팅로드(20) 소단부(20a)의 오일유입구멍(20d)으로 비산된 오일이 흡입되고, 흡입된 오일에 의해 소단부(20a)의 냉각 및 윤활작용이 원활하게 이루어진다.According to the present invention configured as described above, when the engine is operated, the oil stored in the bottom oil pan of the engine is scattered by the moving part of the engine, thereby lubricating the oil by the splash of the inner wall of the cylinder and the bottom of the piston 10 and the connecting rod 20. At this time, a negative pressure is generated between the bearing portion of the connecting rod 20 small end portion 20a and the piston pin 11, so that the oil splashes into the oil inlet hole 20d of the connecting rod 20 small end portion 20a. The suction and the sucked oil smoothly cools and lubricates the small end portion 20a.
한편, 이러한 본 발명은 커넥팅로드(20)의 소단부(20a) 및 피스톤핀(11) 부위의 냉각 및 윤활을 위한 오일유입구멍(20d)가 소단부(20a)의 내주면과 외부면 사이에 형성되어, 오일유입구멍(20d)의 길이가 비교적 짧게 되고 가공공수가 저감되므로, 제작이 용이하고, 이로인해 제작단가가 저감되는 효과가 있도록 한다.On the other hand, in the present invention, the oil inlet hole 20d for cooling and lubrication of the small end portion 20a of the connecting rod 20 and the piston pin 11 is formed between the inner circumferential surface and the outer surface of the small end portion 20a. As a result, the length of the oil inlet hole 20d becomes relatively short, and the number of machining operations is reduced, so that the production is easy and thus the manufacturing cost is reduced.
이상에서 살펴본 바와 같이, 본 발명은 피스톤에 연결되는 커넥팅로드의 소단부 내주면과 외주면 사이에 오일유입구멍이 형성되어, 그 제작이 용이하도록 하고 제작단가가 저감되도록 하는 매우 유용한 것이다.As described above, the present invention is an oil inlet hole is formed between the inner peripheral surface and the outer peripheral surface of the small end of the connecting rod connected to the piston, it is very useful to facilitate the production and to reduce the manufacturing cost.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950030666A KR100189379B1 (en) | 1995-09-19 | 1995-09-19 | Connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950030666A KR100189379B1 (en) | 1995-09-19 | 1995-09-19 | Connecting rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970016190A KR970016190A (en) | 1997-04-28 |
| KR100189379B1 true KR100189379B1 (en) | 1999-06-01 |
Family
ID=19427189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950030666A KR100189379B1 (en) | 1995-09-19 | 1995-09-19 | Connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100189379B1 (en) |
-
1995
- 1995-09-19 KR KR1019950030666A patent/KR100189379B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR970016190A (en) | 1997-04-28 |
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