KR0137504Y1 - Pulley fixing structure of engine-cam-shaft - Google Patents
Pulley fixing structure of engine-cam-shaft Download PDFInfo
- Publication number
- KR0137504Y1 KR0137504Y1 KR2019920027609U KR920027609U KR0137504Y1 KR 0137504 Y1 KR0137504 Y1 KR 0137504Y1 KR 2019920027609 U KR2019920027609 U KR 2019920027609U KR 920027609 U KR920027609 U KR 920027609U KR 0137504 Y1 KR0137504 Y1 KR 0137504Y1
- Authority
- KR
- South Korea
- Prior art keywords
- pulley
- cam shaft
- camshaft
- end portion
- engine
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
본 고안은 엔진 캠샤프트(1)의 끝단부(1a)에 부착되는 풀리의 체결구조로서, 상기 캠샤프트(1)의 끝단부(1a) 외주면과 풀리(2)의 중앙구멍(2a) 내주면에 각각 나선부들(3a,3b)을 형성시키어 이 캠샤프트(1)의 회전방향과 반대방향으로 풀리(2)가 보울트식으로 체결됨에 따라 이 체결부위가 보다 견고하게 이루어져 동력전달이 향상되고, 이 캠샤프트(1)의 끝단부(1a)가 응력집중현상에 대해 충분한 강성을 지니도록 되어 있다.The present invention is a fastening structure of a pulley attached to the end portion (1a) of the engine camshaft (1), the outer peripheral surface of the end portion (1a) of the camshaft 1 and the inner peripheral surface of the central hole (2a) of the pulley (2) As the spiral parts 3a and 3b are respectively formed and the pulley 2 is bolted in the opposite direction to the rotational direction of the camshaft 1, the fastening part becomes more firm and power transmission is improved. The end portion 1a of the cam shaft 1 is designed to have sufficient rigidity against stress concentration phenomenon.
Description
제1도는 본 고안에 따른 풀리체결구조의 단면도.1 is a cross-sectional view of the pulley fastening structure according to the present invention.
제2도는 종래구조로서, 제1도에 대응되는 단면도이다.2 is a sectional view corresponding to FIG. 1 as a conventional structure.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 캠샤프트 1a : 끝단부1: Camshaft 1a: End
2 : 풀리 2a : 중앙구멍2 pulley 2a center hole
3a,3b : 나선부3a, 3b: spiral
본 고안은 차량용 엔진의 캠샤프트의 끝단부에 설치되는 풀리에 관한 것으로, 특히 이 풀리가 캠샤프트의 끝단에 체결될때 응력집중현상이 방지되고 체결부위의 풀림이 방지되는 개선된 엔진 캠샤프트의 풀리체결구조에 관한 것이다.The present invention relates to a pulley installed at the end of a cam shaft of a vehicle engine, in particular, when the pulley is fastened to the end of the cam shaft, stress concentration phenomenon is prevented and the pulley of the improved engine camshaft is prevented from loosening the fastening portion It relates to a fastening structure.
일반적으로 캠샤프트는 엔진의 실린더헤드와 베어링캡들로 지지되면서 끝단에 풀리가 부착되어져 있는데, 종래의 풀리의 부착구조는 제2도에 도시된 바와같이 캠샤프트(101)의 끝단부(101a)와 풀리(102)의 중앙부위에 나선부가 형성된 보울트구멍(102a)이 형성되고 이 보울트구멍(102a)에 체결되는 보울트(104)로 상기 풀리(102)를 캠샤프트(101)의 끝단부(101a)에 부착시키도록 되어 있었다.In general, the cam shaft is supported by the cylinder head and the bearing caps of the engine, the pulley is attached to the end, the conventional pulley attachment structure as shown in Figure 2 the end portion 101a of the cam shaft 101 And a bolt hole (102a) having a spiral portion formed at a central portion of the pulley (102), and the pulley (102) of the camshaft (101) with the bolt (104) fastened to the bolt hole (102a). It was supposed to attach.
그러나 이러한 종래의 풀리체결구조는 캠샤프트(101)의 끝단부(101a)에 형성된 보울트구멍(102a)으로 인해 이 캠샤프트의 강도가 저하될 뿐만 아니라 동력전달시 상기 풀리(101)에 체결된 보울트(104)의 단부에 응력이 집중되어 이 캠샤프트(101)의 끝단부(101a)가 절손되어질 수 있는 문제점이 있었다.However, such a conventional pulley fastening structure has a bolt hole 102a formed at the end portion 101a of the camshaft 101, which not only reduces the strength of the camshaft but also the bolt fastened to the pulley 101 during power transmission. There is a problem that stress is concentrated at the end of the 104 and the end portion 101a of the cam shaft 101 may be broken.
이에 본 고안은 상기와 같은 종래의 제반 문제점을 해결하기 위해 안출된 것으로, 캠샤프트의 끝단부의 외주면과 풀리의 중앙 보울트구멍 내주면에는 서로 보울트식으로 체결될 수 있도록 이 캠샤프트의 회전방향과 동일방향으로 나선부들이 형성됨에 따라 상기 풀리는 캠샤프트에 형성된 나선부 끝단에 의해 견고하게 체결되어져 종래와 같이 보울트의 체결풀림을 방지하게 될 뿐만 아니라 이 캠샤프트의 끝단부에 집중적으로 걸려지는 응력으로 부터 충분한 강성이 보강되어지도록 되어 있다.The present invention has been devised to solve the conventional problems as described above, and the same direction as the rotation direction of the cam shaft so that the outer peripheral surface of the end of the cam shaft and the inner bolt surface of the central bolt hole of the pulley can be bolted to each other. As the spirals are formed, the pulley is firmly fastened by the spiral end formed on the camshaft to prevent loosening of the bolt as in the related art, and is sufficient from the stress concentrated on the end of the camshaft. Rigidity is to be reinforced.
이하, 본 고안을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail based on the accompanying drawings.
제1도는 본 고안이 적용된 캠샤프트(1)의 끝단부(15)에 보울트식으로 체결되는 풀리(2)의 부착구조를 나타낸 단면도로서, 도면에 도시된 바와 같이 상기 캠샤프트(1)의 끝단부(15) 외주면에는 나선부(3a)가 형성되고, 이 나선부(3a)에 풀리(2)의 중앙구멍(2a)에 형성된 나선부(3b)가 서로 보울트식으로 체결되며, 이때 캠샤프트(1)의 회전방향과는 동일방향으로 상기 풀리(2)가 이 캠샤프트(1)에 체결되어지는 구조로 되어 있다.1 is a cross-sectional view showing the attachment structure of the pulley (2) bolted to the end portion 15 of the cam shaft (1) to which the present invention is applied, as shown in the figure the end of the cam shaft (1) A spiral portion 3a is formed on the outer circumferential surface of the portion 15, and the spiral portion 3b formed in the central hole 2a of the pulley 2 is bolted to each other in a spiral manner. The pulley 2 is fastened to the cam shaft 1 in the same direction as the rotational direction of (1).
이와같이 이루어진 본 고안은, 상기 풀리(2)가 캠샤프트(1)의 끝단부(1a)외주면에 형성된 나선부(3a)에 이의 중앙구멍(2a)을 통하여 체결됨에 따라, 별도의 보울트를 이용하지 않고서도 상기 풀리(2)는 캠샤프트(1)에 견고하게 부착된다.According to the present invention, the pulley 2 is fastened to the spiral portion 3a formed on the outer circumferential surface of the end portion 1a of the camshaft 1 through its central hole 2a, so that a separate bolt is not used. The pulley 2 is firmly attached to the cam shaft 1 even without.
또한 상기 캠샤프트(1)의 끝단부(15)에는 종래와 같이 보울트 체결구멍을 형성시키지 않게 되므로 체결부위의 응력집중현상에 대해서 충분한 강성을 지니도록 되어 있음에 따라, 이 캠샤프트(1)의 끝단부(1a)가 회전작동시에 절손되어지는 일이 없게 된다.In addition, since the bolt fastening hole is not formed in the end portion 15 of the cam shaft 1 as conventionally, the cam shaft 1 has sufficient rigidity against the stress concentration phenomenon of the fastening portion. The end 1a is not broken during the rotation operation.
상기와 같이 본 고안에 따른 엔진 캠샤프트의 풀리체결구조는 풀리(2)가 캠샤프트(1)의 끝단부(1a)에 나선부들(3a,3b)을 매개로 체결됨에 따라, 종래의 보울트를 매개로 부착되는 구조에 비해 동력전달이 확실하게 전달되어질 뿐만 아니라 체결부위의 풀림이 방지되고, 더욱이 이 캠샤프트의 끝단부가 절손되어지는 일이 없게 된다.Pulley fastening structure of the engine camshaft according to the present invention as described above, as the pulley (2) is fastened to the end portion (1a) of the camshaft 1 through the spiral parts (3a, 3b), the conventional bolt Compared to the structure attached to each other, the power transmission is not only transmitted reliably but also the loosening of the fastening part is prevented, and the end of the cam shaft is not broken.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019920027609U KR0137504Y1 (en) | 1992-12-30 | 1992-12-30 | Pulley fixing structure of engine-cam-shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019920027609U KR0137504Y1 (en) | 1992-12-30 | 1992-12-30 | Pulley fixing structure of engine-cam-shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940016383U KR940016383U (en) | 1994-07-22 |
| KR0137504Y1 true KR0137504Y1 (en) | 1999-03-20 |
Family
ID=19348806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019920027609U KR0137504Y1 (en) | 1992-12-30 | 1992-12-30 | Pulley fixing structure of engine-cam-shaft |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0137504Y1 (en) |
-
1992
- 1992-12-30 KR KR2019920027609U patent/KR0137504Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR940016383U (en) | 1994-07-22 |
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