KR0124928Y1 - Hollow camshaft - Google Patents

Hollow camshaft Download PDF

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Publication number
KR0124928Y1
KR0124928Y1 KR2019920027120U KR920027120U KR0124928Y1 KR 0124928 Y1 KR0124928 Y1 KR 0124928Y1 KR 2019920027120 U KR2019920027120 U KR 2019920027120U KR 920027120 U KR920027120 U KR 920027120U KR 0124928 Y1 KR0124928 Y1 KR 0124928Y1
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KR
South Korea
Prior art keywords
cam
hollow
hollow shaft
shaft
present
Prior art date
Application number
KR2019920027120U
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Korean (ko)
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KR940016402U (en
Inventor
박태경
Original Assignee
전성원
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 전성원, 현대자동차주식회사 filed Critical 전성원
Priority to KR2019920027120U priority Critical patent/KR0124928Y1/en
Publication of KR940016402U publication Critical patent/KR940016402U/en
Application granted granted Critical
Publication of KR0124928Y1 publication Critical patent/KR0124928Y1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00Shafts; Axles; Cranks; Eccentrics
    • F16C3/02Shafts; Axles
    • F16C3/023Shafts; Axles made of several parts, e.g. by welding

Abstract

본 고안은 자동차 엔진의 실린더 헤드에 장작되는 중공 캠 샤프트에 관한 것으로, 소결가공된 캠과 상기 캠과 결합되는 원주면 상에형의 돌기 또는형의 돌기가 연속적으로 형성된 중공축을 별도로 가공하여, 상기 캠과 중공축을 끼워맞춤으로 견고하게 결합하여서 된 것이다.The present invention relates to a hollow cam shaft which is mounted on a cylinder head of an automobile engine, the cam being sintered and on the circumferential surface coupled with the cam Turning of the mold or The hollow shaft is formed by continuously processing the hollow shaft formed continuously, and the cam and the hollow shaft are firmly joined by fitting.

이와같이 구성된 본 고안에 의하면 캠과 중공축의 결합이 용이할 뿐만 아니라 견고한 상태로 결합이 되어, 상기 중공 캠 샤프트를 장기간 사용을 하여도 캠이 헐거워지지 않는 효과가 있다.According to the present invention configured as described above, not only the cam and the hollow shaft are easily coupled, but are firmly coupled, so that the cam does not become loose even when the hollow cam shaft is used for a long time.

Description

중공 캠샤프트Hollow camshaft

제1도는 본 고안에 따른 중공 캠샤프트의 결합상태 사시도.Figure 1 is a perspective view of the coupling state of the hollow camshaft according to the present invention.

제2도는 본 고안에 따른 중공 캠샤프트의 결합전의 횡단면도.2 is a cross-sectional view before coupling of the hollow camshaft according to the present invention.

제3도는 본 고안의 다른 실시예에 따른 중공 캠샤프트의 결합전의 횡단면도.3 is a cross-sectional view before coupling of a hollow camshaft according to another embodiment of the present invention.

제4도는 종래 고안에 따른 중공 캠샤프트의 결합전의 횡단면도.Figure 4 is a cross-sectional view before coupling of the hollow camshaft according to the conventional design.

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

10 : 캠(CAM) 11 : 중공축10: CAM 11: hollow shaft

12 : ∩형 돌기 13 :형 돌기12: ∩ projection 13: Mold turning

14 :형 돌기14: Mold turning

본 고안은 자동차 엔진중 실린더 헤드에 장착되는 캠 샤프트(CAM SHAFT)에 관한 것으로 특히 소결 가공된 캠과 상기 캠과의 결합면인 원주면상에 돌기부가 형성된 중공축을 별도로 가공하여, 상기 캠과 중공축을 억지로 끼워 맞춤으로 결합하여서 된 중공 캠 샤프트에 관한 것이다.The present invention relates to a cam shaft (CAM SHAFT) is mounted to the cylinder head of the automobile engine, in particular to process the hollow shaft formed with projections on the circumferential surface of the sintered cam and the mating surface of the cam separately, so that the cam and the hollow shaft It relates to a hollow camshaft which is forcibly engaged by fitting.

종래의 중공 캠 샤프트에 관해서는 미국특허 US 4903543에 개재되어 있는 바, 상기 중공 캠샤프트는 제4도에 도시된 바와 같이 소결가공된 캠(10)과 상기 캠(10)과의 결합면인 원주면상에 ∩형 돌기(12)가 연속적으로 형성되어 있는 중공축(11)과 상기 캠(10)과 중공축(11)을 끼워맞춤으로 결합시킨 구조로 되어 있었다.A conventional hollow cam shaft is disclosed in US Pat. No. 4903543, wherein the hollow camshaft is a circumference which is a joining surface of the cam 10 and the cam 10 sintered as shown in FIG. The hollow shaft 11 and the cam 10 and the hollow shaft 11, in which the X-shaped protrusions 12 were continuously formed on the surface, were fitted to each other.

이와같이 상기 중공 캠샤프트는 원주면상에 ∩형 돌기(13)가 연속적으로 형성되어 있는 중공축(11)에 소결가공된 캠(10)을 억지끼워 맞춤을 함으로써, 상기 중공축(11)에 형성되어 있는 ∩형 돌기가 캠(10)에 의하여 깍이면서 상기 캠(10)과 중공축(11)이 결합되어 이루어진 것이다.In this way, the hollow camshaft is formed on the hollow shaft 11 by forcibly fitting the cam 10 sintered to the hollow shaft 11 on which the chamfer protrusion 13 is continuously formed on the circumferential surface. The cam-shaped protrusion is cut by the cam 10 is made of the cam 10 and the hollow shaft 11 is coupled.

그러나 상기 중공 캠 샤프트는 중공축의 원주면에 형성되어 있는 동일형상의 ∩형 돌기가 깍이면서 결합되는 구조로 되어 있으므로 장기간 사용될 경우 결합면인 중공축의 외주면과 캠의 내주면이 헐거워지는 문제점이 있었다.However, since the hollow cam shaft has a structure in which the same-shaped X-shaped protrusions formed on the circumferential surface of the hollow shaft are cut and coupled, the outer circumferential surface of the hollow shaft and the inner circumferential surface of the cam become loose when used for a long time.

본 고안은 전술한 바와 같은 문제점을 해결하기 위한 것으로, 중공축의 원주면상에 형성되어 있는 동일한 형상의 ∩형 돌기 대신형 돌기 또는형 돌기가 연속적으로 형성되도록 해줌으로써 캠과 중공축이 견고하게 결합되도록 한 중공 캠 샤프트의 제공을 목적으로 한다.The present invention is to solve the problems as described above, instead of the same shape of the protrusions formed on the circumferential surface of the hollow shaft Mold turning or It is an object of the present invention to provide a hollow cam shaft in which the cam and the hollow shaft are firmly coupled by allowing the mold protrusion to be continuously formed.

본 고안의 구성을 첨부도면에 의거 상세히 설명하면 다음과 같다.Referring to the configuration of the present invention in detail based on the accompanying drawings as follows.

본 고안은 제1도 및 제2도에 도시되어 있는 바와 같이, 소결가공된 캠(10)과, 상기 캠(10)과의 결합면인 원주면상에 ∩형돌기(12)가 연속적으로 형성되어 있는 중공축(11)과, 상기 캠(10)과 중공축(11)을 억지 끼워맞춤으로 결합시켜 형성된 중공 캠 샤프트에 있어서, 상기 캠(10)과 결합면인 중공축(11)의 원주면상에형 돌기(13)를 연속적으로 형성하고, 상기 캠(10)과 중공축(11)을 억지 끼워맞춤으로 결합시켜 형성된 것이다.In the present invention, as shown in FIGS. 1 and 2, the chamfered projections 12 are continuously formed on the sintered cam 10 and a circumferential surface that is a mating surface of the cam 10. In the hollow cam shaft formed by coupling the hollow shaft 11 and the cam 10 and the hollow shaft 11 by interference fit, on the circumferential surface of the hollow shaft 11 which is the engagement surface with the cam 10 on Forming protrusions 13 are formed continuously, and the cam 10 and the hollow shaft 11 are formed by forcibly fitting.

또한 본 고안은 제3도에 도시된 바와같이 상기 캠(10)과의 결합면인 중공축(1!)의 원주면상에형 돌기(14)를 연속적으로 형성하여, 상기 캠(10)과 중공축(11)을 억지 끼워맞춤으로 결합시켜 형성될 수도 있다.In addition, the present invention, as shown in Figure 3 on the circumferential surface of the hollow shaft (1!) That is the engagement surface with the cam 10 The protrusions 14 may be continuously formed, and the cam 10 and the hollow shaft 11 may be formed by forcibly fitting the couplings.

이와같이 구성된 본 고안에 의하면, 상기 캠(10)이형돌기(13) 또는형돌기(14)가 연속적으로 형성되어 있는 중공축(11)에 결합될 때 돌기중 큰 부분이 캠에 의하여 깍여서 돌기중 작은 부분에 덮이게 되어 상기 캠(10)과 중공축(11)이 견고하게 결합이 된다.According to the present invention configured as described above, the cam 10 is Die projection 13 or When the mold protrusion 14 is coupled to the hollow shaft 11 which is continuously formed, a large part of the protrusion is cut by the cam to cover the small part of the protrusion, so that the cam 10 and the hollow shaft 11 are It is firmly combined.

이와같이 본 고안에 따른 중공 캠 샤프트는 종래의 ∩형의 돌기만이 연속적을 형성되어 있는 중공축에 비하여 캠과 중공축의 결합이 용이할 뿐만 아니라 견고하게 결합이 되어, 캠과 중공축의 결합된 상태에서 장기간 사용을 하여도 그 결합정도가 확실하여 캠이 헐거워지지 않는 효과가 생긴다.As described above, the hollow cam shaft according to the present invention is not only easily coupled to the cam and the hollow shaft, but also firmly coupled to the hollow shaft, in which only the hollow protrusion of the conventional fin-shaped protrusion is continuously formed, in a state in which the cam and the hollow shaft are coupled. Even if it is used for a long time, the degree of coupling is assured and the cam does not come loose.

Claims (1)

소결가공된 캠(10)과 상기 캠(10)과의 결합면인 원주면상에 ∩형 돌기가 연속적으로 형성되어 있는 중공축(11)과, 상기 캠(10)과 중공축(11)을 억지끼워맞춤으로 결합시켜 형성된 중공 캠 샤프트 구조에 있어서, 상기 캠(10)과의 결합면인 중공축(1!)의 원주면상에형돌기(13)를 연속적으로 형성하고, 상기 캠(10)과 중공축(11)을 억지끼워맞춤으로 결합시킨 것을 특징으로 하는 중공 캠 샤프트.The hollow shaft 11 and the cam 10 and the hollow shaft 11 which hold | maintain a hollow projection continuously formed on the circumferential surface which is the joining surface of the cam 10 and the cam 10 which were sintered, are suppressed. In the hollow cam shaft structure formed by joining by fitting, on the circumferential surface of the hollow shaft (1!), Which is a mating surface with the cam 10 A hollow camshaft, characterized in that the forming projection (13) is formed continuously, and the cam (10) and the hollow shaft (11) are combined by interference fit.
KR2019920027120U 1992-12-29 1992-12-29 Hollow camshaft KR0124928Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019920027120U KR0124928Y1 (en) 1992-12-29 1992-12-29 Hollow camshaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019920027120U KR0124928Y1 (en) 1992-12-29 1992-12-29 Hollow camshaft

Publications (2)

Publication Number Publication Date
KR940016402U KR940016402U (en) 1994-07-22
KR0124928Y1 true KR0124928Y1 (en) 1999-03-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019920027120U KR0124928Y1 (en) 1992-12-29 1992-12-29 Hollow camshaft

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KR940016402U (en) 1994-07-22

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