KR100747171B1 - Chain sprocket - Google Patents

Chain sprocket Download PDF

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Publication number
KR100747171B1
KR100747171B1 KR1020050121274A KR20050121274A KR100747171B1 KR 100747171 B1 KR100747171 B1 KR 100747171B1 KR 1020050121274 A KR1020050121274 A KR 1020050121274A KR 20050121274 A KR20050121274 A KR 20050121274A KR 100747171 B1 KR100747171 B1 KR 100747171B1
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KR
South Korea
Prior art keywords
chain
chain sprocket
sprocket
weight
present
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KR1020050121274A
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Korean (ko)
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KR20070061640A (en
Inventor
황선양
황정열
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현대자동차주식회사
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Priority to KR1020050121274A priority Critical patent/KR100747171B1/en
Publication of KR20070061640A publication Critical patent/KR20070061640A/en
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Publication of KR100747171B1 publication Critical patent/KR100747171B1/en

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    • 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
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02Toothed members; Worms
    • F16H55/30Chain-wheels
    • 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
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/0006Vibration-damping or noise reducing means specially adapted for gearings
    • 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
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0863Finally actuated members, e.g. constructional details thereof
    • F16H2007/087Sprockets
    • 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
    • F16HGEARING
    • F16H55/00Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02Toothed members; Worms
    • F16H55/30Chain-wheels
    • F16H2055/306Chain-wheels with means providing resilience or vibration damping in chain sprocket wheels

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Gears, Cams (AREA)

Abstract

본 발명은 체인 스프로켓에 관한 것으로, 체인과 스프로켓의 치합시에 발생하는 치합소음을 효과적으로 줄여서 자동차의 상품성을 향상시킬 수 있도록 하기 위해, 체인과 치합되는 다수개의 치가 원주 방향으로 일정 간격을 두고 형성된 체인 스프로켓 몸체에 관성모멘트를 부여하는 중량체가 일체로 회전되게 부착된 구조로 되어 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chain sprocket. In order to effectively reduce the noise generated when joining a chain and a sprocket, and to improve the merchandise of a car, a plurality of teeth engaged with the chain are formed at regular intervals in the circumferential direction The sprocket body has a structure in which a weight body for imparting an inertia moment is integrally rotated.

Description

체인 스프로켓{Chain sprocket}Chain sprocket

도 1은 종래 기술에 따라 체인 동력전달장치를 사용한 디젤엔진의 개략적인 측면도이고,1 is a schematic side view of a diesel engine using a chain power train according to the prior art,

도 2는 본 발명에 따른 체인 스프로켓의 정면도,2 is a front view of the chain sprocket according to the present invention;

도 3은 본 발명에 따른 체인 스프로켓의 후면도이다.3 is a rear view of the chain sprocket according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

10-체인 스프로켓 몸체 11-제1체인연결부10-chain sprocket body 11-first chain connection

12-제2체인연결부 13-중량체12-second chain connection 13-weight

본 발명은 체인 스프로켓에 관한 것으로, 특히 대체로 원형을 이루는 체인 스프로켓의 전면 또는 후면에 관성모멘트를 부여하는 링 형상의 중량체를 부착하여 체인 동력전달장치의 구동소음을 저감시킬 수 있도록 한 체인 스프로켓에 관한 것이다.The present invention relates to a chain sprocket, and more particularly to a chain sprocket which can reduce driving noise of a chain power transmission device by attaching a ring-shaped weight body that imparts an inertia moment to the front or rear surface of a generally circular chain sprocket. It is about.

자동차의 엔진은 연소실에서 연료가 연소됨에 따라서 발생하는 동력을 회전동력으로 전환하는 크랭크 샤프트를 구비하고 있다.The engine of an automobile is provided with a crankshaft which converts the power generated as fuel is burned in a combustion chamber into rotational power.

상기 크랭크 샤프트의 회전동력은 대부분이 트랜스 밋션을 통해서 자동차를 구동하는 데에 사용되고, 일부의 회전동력은 엔진 주변의 보기류를 구동하는 데에 사용되고 있다. 특히 크랭크 샤프트의 일측에는 흡기 밸브 및 배기 밸브를 구동하기 위한 밸브 트레인의 작동을 위해서 캠 샤프트에 전달될 수 있도록 구성된다.Most of the rotational power of the crankshaft is used to drive the vehicle through the transmission, and some of the rotational power is used to drive the accessories around the engine. In particular, one side of the crankshaft is configured to be transmitted to the camshaft for the operation of the valve train for driving the intake valve and the exhaust valve.

상기 크랭크 샤프트와 캠 샤프트 사이에는 구동력의 손실이 적으면서 보다 정확한 회전력이 전달될 수 있도록 하는 체인 동력전달장치가 사용되는 데. 크랭크 샤프트와 캠 샤프트의 일측 선단에는 체인 스프로켓이 일체로 회전되게 설치되고, 상기 체인 스프로켓 사이에는 체인이 적절한 장력을 유지한 상태로 연결된다.A chain power train is used between the crankshaft and the camshaft to allow a more accurate rotational force to be transmitted with less loss of driving force. One end of the crankshaft and the camshaft is installed so that the chain sprocket is integrally rotated, and the chain is connected between the chain sprockets while maintaining an appropriate tension.

도 1에는 종래 기술에 따라 체인 동력전달장치를 사용한 디젤엔진의 측면이 도시되어 있는 바, 즉 크랭크 샤프트에 일체로 회전되게 설치된 체인 스프로켓(1)과, 펌프를 구동시키기 위해 펌프의 회전축에 설치된 체인 스프로켓(2)이 체인(3)을 매개로 동력전달이 이루어지도록 연결되고, 상기 펌프의 회전축에 설치된 기어(4)는 캠 샤프트에 일체로 회전되게 설치된 체인 스프로켓(5)과 체인(3)을 매개로 동력전달이 이루어지게 연결되어 있다.1 shows a side view of a diesel engine using a chain power transmission device according to the prior art, that is, a chain sprocket 1 installed integrally with a crankshaft, and a chain installed on a rotating shaft of the pump to drive the pump. The sprocket 2 is connected to the power transmission via the chain (3), the gear (4) installed on the rotating shaft of the pump is connected to the chain sprocket (5) and the chain (3) installed integrally with the cam shaft. It is connected by power transmission.

이에 따라, 엔진의 피스톤에서 발생하는 상하 직선 운동력이 크랭크 샤프트를 통해 회전동력으로 전환된 다음에 상기 체인을 통해서 펌프와 캠 샤프트에 각각 전달되게 되어 있다.Accordingly, the vertical linear motion generated in the piston of the engine is converted into rotational power through the crankshaft and then transmitted to the pump and the camshaft through the chain, respectively.

그런데, 상기와 같은 종래의 체인을 이용한 동력전달장치에서는 체인과 스프로켓의 치합시에 필연적으로 소음이 발생하게 되는 데, 특히 캠 샤프트의 회전축에 장착된 체인 스프로켓과 펌프의 회전축에 장착된 체인 스프로켓에서 치합 소음이 심하게 발생된다고 하는 결점이 있었다.However, in the power transmission apparatus using the conventional chain as described above, noise is inevitably generated when the chain and the sprocket are engaged. In particular, in the chain sprocket mounted on the rotating shaft of the cam shaft and the chain sprocket mounted on the rotating shaft of the pump. There was a drawback that the noise was too bad.

이에 본 발명은 상기와 같은 사정을 감안하여 안출된 것으로, 체인과 스프로켓의 치합시에 발생하는 치합소음을 효과적으로 줄여서 자동차의 상품성을 향상시킬 수 있도록 한 체인 스프로켓를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a chain sprocket that can effectively improve the merchandise of an automobile by effectively reducing the noise generated when the chain and the sprocket are engaged.

상기와 같은 목적을 달성하기 위한 본 발명은, 체인과 치합되는 다수개의 치가 원주 방향으로 일정 간격을 두고 형성된 체인 스프로켓 몸체에 관성모멘트를 부여하는 중량체가 일체로 회전되게 부착된 구조로 되어 있다.In order to achieve the above object, the present invention has a structure in which a plurality of teeth engaged with a chain are rotatably attached to a weight body that imparts an inertia moment to a chain sprocket body formed at regular intervals in a circumferential direction.

바람직하기로는, 상기 중량체는 링 형상으로 형성된 것을 특징으로 한다.Preferably, the weight is characterized in that formed in a ring shape.

또한, 상기 중량체는 체인 스프로켓 몸체의 전면 혹은 후면에 부착되거나 전면 및 후면에 동시에 부착된 것을 특징으로 한다.In addition, the weight is characterized in that attached to the front or rear of the chain sprocket body or attached to the front and rear at the same time.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2에는 본 발명에 따른 체인 스프로켓의 전면이 도시되어 있는 바, 즉 대체로 원형을 이루는 체인 스프로켓 몸체(10)의 외주면에는 다수개의 치가 원주방향으로 일정 간격을 두고 형성된 제1체인연결부(11)가 형성되어 있다.2 shows a front surface of the chain sprocket according to the present invention, that is, a first chain connecting portion 11 having a plurality of teeth formed at regular intervals in the circumferential direction is formed on the outer circumferential surface of the chain sprocket body 10 which is generally circular. Formed.

또한 상기 체인 스프로켓 몸체(10)의 중앙 부위에는 회전축에 끼워서 장착하기 위한 장착구멍을 가진 보스부가 형성되어 있고, 상기 보스부의 외주면에도 다수개의 치가 일정 간격을 두고 원주 방향을 형성된 제2체인연결부(12)가 형성되어 있다.In addition, the central portion of the chain sprocket body 10 is formed with a boss portion having a mounting hole for mounting to the rotation shaft, the second chain connecting portion 12 formed in the circumferential direction at a predetermined interval on the outer peripheral surface of the boss portion ) Is formed.

그리고, 상기 체인 스프로켓 몸체(10)에는 링 형상을 한 중량체(13)가 동축상으로 일체로 부착되어 있는 데, 상기 중량체(13)는 체인 스프로켓의 중량을 단순히 증가시키도록 부착되는 것이 아니고, 체인 스프로켓에 관성모멘트를 부여하기 위해 관성모멘트를 부여하기 위해 부착된다.In addition, a ring-shaped weight body 13 is integrally attached coaxially to the chain sprocket body 10, but the weight body 13 is not attached to simply increase the weight of the chain sprocket. To attach the moment of inertia to the chain sprocket, it is attached to give the moment of inertia.

상기 중량체(13)는 도 3에 도시된 바와 같이 체인 스프로켓 몸체(10)의 후면에도 부착할 수 있음은 물론이다.The weight 13 may be attached to the back of the chain sprocket body 10 as shown in FIG. 3.

상기 중량체(13)를 체인 스프로켓 몸체(10)에 장착하는 방법으로서는 상기 중량체(13)와 체인 스프로켓 몸체(10)에 각각 조립구멍을 형성시키고, 이 조립구멍에 리벳을 끼워서 중량체(13)를 체인 스프로켓 몸체(10)에 일체로 장착할 수 있고, 기타 다른 방법으로 장착 할 수 있다.As a method of mounting the weight body 13 to the chain sprocket body 10, assembling holes are formed in the weight body 13 and the chain sprocket body 10, respectively, and the weight body 13 is formed by inserting a rivet into the assembly hole. ) Can be mounted integrally to the chain sprocket body (10), it can be mounted in other ways.

상기와 같은 중량체(13)를 체인 스프로켓 몸체(10)에 장착할 때에 그 크기와 중량을 적절히 튜닝하게 되는 데, 예컨대 엔진의 구동시에 소음이 가장 크게 발생하는 엔진의 구동 회전수를 측정하고, 그 때의 소음 크기를 줄여주도록 중량체의 크기와 중량을 적절히 튜닝하면 된다.When the weight 13 is attached to the chain sprocket body 10, the size and weight thereof are appropriately tuned. For example, the driving speed of the engine that generates the most noise when the engine is driven is measured. The size and weight of the weight should be properly tuned to reduce the noise level at that time.

이상 설명한 바와 같이 본 발명에 따른 체인 스프로켓에 의하면, 체인을 사용해서 동력전달이 이루어지게 하는 체인 동력전달장치에서 스프로켓에 관성모멘트를 부여하는 중량체가 일체로 부착되어, 체인 동력전달장치에서 체인과 스프로켓 사이의 치합 소음을 효과적으로 줄여서 자동차의 상품성을 향상시킬 수 있는 등의 효과가 있게 된다.As described above, according to the chain sprocket according to the present invention, in the chain power transmission device for power transmission using the chain, a weight body for imparting an inertia moment to the sprocket is integrally attached to the chain and the sprocket in the chain power transmission device. Effectively reducing the noise between the teeth to improve the merchandise of the car is effective.

Claims (3)

체인과 치합되는 다수개의 치가 원주 방향으로 일정 간격을 두고 형성된 체인 스프로켓 몸체의 전면 또는/및 후면에 링 형상의 중량체가 체인 스프로켓 몸체와 동축상으로 일체로 부착된 것을 특징으로 하는 체인 스프로켓.A chain sprocket, characterized in that a ring-shaped heavy body is coaxially attached to the chain sprocket body integrally with the chain sprocket body at the front or / and rear surface of the chain sprocket body formed with a plurality of teeth engaged with the chain at a circumferential direction. 삭제delete 삭제delete
KR1020050121274A 2005-12-10 2005-12-10 Chain sprocket KR100747171B1 (en)

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KR100747171B1 true KR100747171B1 (en) 2007-08-07

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3055222U (en) * 1998-06-23 1999-01-12 春 生 巫 Bicycle transmission structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3055222U (en) * 1998-06-23 1999-01-12 春 生 巫 Bicycle transmission structure

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