KR100222714B1 - Damper pulley - Google Patents

Damper pulley Download PDF

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Publication number
KR100222714B1
KR100222714B1 KR1019960065907A KR19960065907A KR100222714B1 KR 100222714 B1 KR100222714 B1 KR 100222714B1 KR 1019960065907 A KR1019960065907 A KR 1019960065907A KR 19960065907 A KR19960065907 A KR 19960065907A KR 100222714 B1 KR100222714 B1 KR 100222714B1
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KR
South Korea
Prior art keywords
torsion
pulley
force
hub
absorbing means
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KR1019960065907A
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Korean (ko)
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KR19980047416A (en
Inventor
이재갑
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정몽규
현대자동차주식회사
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Priority to KR1019960065907A priority Critical patent/KR100222714B1/en
Publication of KR19980047416A publication Critical patent/KR19980047416A/en
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Publication of KR100222714B1 publication Critical patent/KR100222714B1/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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/1207—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon characterised by the supporting arrangement of the damper unit
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H2055/366—Pulleys with means providing resilience or vibration damping

Abstract

본 발명은 차량의 냉각수펌프와 발전기등을 구동하는 댐퍼풀리(DAMPER PULLEY)에 관한 것이다.The present invention relates to a damper pulley (DAMPER PULLEY) for driving a cooling water pump and a generator of a vehicle.

즉, 크랭크축(10)의 끝단에 일체로 조립되는 허브(21)와, 크랭크축(10)의 회전력을 벨트로 냉각수펌프와 발전기등을 구동시키도록 하는 동시에 토션력의 발생시 관성력으로 원활하게 회전시키도록 허브(21)의 외주면에 일체로 조립되는 중량의 토션용 풀리(22)와, 허브(21)와 풀리(22)사이에 일체로 설치되어 토션력의 발생시 이를 흡수하여 토션진동을 감소시키도록 하는 고무재의 토션흡수수단(23)으로 구성한 댐퍼풀리(20)에 있어서,That is, the hub 21, which is integrally assembled at the end of the crankshaft 10, and the rotational force of the crankshaft 10 are driven by the belt to drive the coolant pump and the generator, and at the same time smoothly rotates by inertial force when torsional force is generated. A torsion pulley 22 having a weight that is integrally assembled to the outer circumferential surface of the hub 21 and an integrally installed between the hub 21 and the pulley 22 are absorbed when the torsion force is generated to reduce the torsional vibration. In the damper pulley 20 composed of a torsion absorbing means 23 of rubber material,

설정된 회전속도로의 상승 회전시 회전주파수를 튜닝하도록 토션흡수수단(23)내에 설정된 간격마다 지그재그로 원주방향을 따라서 스프링상수가 다른 제2토션흡수수단(24)을 배열하여 차량의 댐퍼풀리용 토션진동저감장치를 구성하므로서, 회전속도의 변위시 토션진동에 따른 2개의 회전주파수를 튜닝하여 진동소음을 감소시킬 수가 있는 효과가 있다.A torsion for damper pulley of the vehicle is arranged by arranging the second torsion absorbing means 24 having different spring constants along the circumferential direction in a zigzag at intervals set in the torsion absorbing means 23 so as to tune the rotation frequency during the ascending rotation at the set rotational speed. Since the vibration reducing device is configured, the vibration noise can be reduced by tuning two rotation frequencies according to the torsional vibration when the rotational speed is displaced.

Description

차량의 댐퍼풀리용 토션진동저감장치Torsion Vibration Reduction Device for Vehicle Damper Pulley

본 발명은 댐퍼풀리의 토션흡수수단내에 스프링상수가 다른 제2토션흡수수단을 설정된 간격마다 지그재그로 원주방향을 따라서 배열하므로서, 회전속도의 변위시 토션진동에 따른 2개의 회전주파수를 튜닝하고자 하는 데 그 목적이 있다.The present invention arranges the second torsion absorbing means having a different spring constant in the torsion absorbing means of the damper pulley along the circumferential direction in a zigzag pattern at set intervals, thereby tuning two rotational frequencies according to the torsional vibration when the rotational speed is displaced. The purpose is.

일반적으로 차량의 엔진은 흡기, 압축, 폭발, 배기행정의 싸이클에 의하여 구동력이 발생하도록 되어 있다.In general, the engine of the vehicle is to generate a driving force by the cycle of intake, compression, explosion, exhaust stroke.

이러한 엔진은 각 피스톤의 상,하 왕복운동시 그 구동력은 크랭크축을 통하여 플라이휘일에 전달되고 플라이휘일은 클러치디스크에 구동력을 전달하여 주므로서 차량이 구동되는 것이다.In the engine, the driving force is transmitted to the flywheel through the crankshaft and the flywheel transfers the driving force to the clutch disc during the up and down reciprocation of each piston.

그런데 4기통 엔진의 경우 폭발행정시 각 피스톤에 전달되는 폭발력은 크랭크축에 전달하게 되는 데, 각 피스톤의 순간적인 하강에 따른 밴딩력, 플라이휘일에 전달하려는 토션력등이 합성한 조합토오크가 크랭크축에 전달하게 된다.However, in the case of four-cylinder engines, the explosive force transmitted to each piston during the explosive stroke is transmitted to the crankshaft, and the combined torque combined with the bending force due to the instantaneous lowering of each piston and the torsion force to be transmitted to the flywheel is cranked. To the axis.

즉, 크랭크축에 밴딩력에 의한 밴딩진동, 토션력에 의한 토션진동 등이 발생하게 되는 데, 그 진동력은 실린더블럭에 전달하여 고소음으로 발생하게 되는 문제점이 있다.That is, the bending vibration caused by the bending force, the torsion vibration caused by the torsion force, etc. are generated in the crankshaft, and the vibration force is transmitted to the cylinder block to generate high noise.

따라서 고소음의 발생을 줄이고자 댐퍼풀리에 흡수수단을 설치하였으므로, 즉 도 3 와 같이 크랭크축(1)의 끝단에 일체로 조립되는 허브(2a)와, 크랭크축(1)의 회전력을 벨트로 냉각수펌프와 발전기등을 구동시키도록 하는 동시에 토션력의 발생시 관성력으로 원활하게 회전시키도록 허브(2a)의 외주면에 일체로 조립되는 중량의 토션용 풀리(2b)와, 허브(2a)와 풀리(2b)사이에 일체로 설치되어 토션력의 발생시 이를 흡수하여 토션진동을 감소시키도록 하는 고무재의 흡수수단(2c)으로 댐퍼풀리(2)를 구성하였다.Therefore, in order to reduce the occurrence of high noise, the damper pulley is provided with an absorbing means, that is, as shown in Fig. 3, the hub 2a integrally assembled at the end of the crankshaft 1 and the rotational force of the crankshaft 1 to the belt. A torsional pulley 2b, which is integrally assembled to the outer circumferential surface of the hub 2a so as to drive the coolant pump and the generator, and to rotate smoothly with inertia when a torsion force is generated, the hub 2a and the pulley ( The damper pulley 2 was configured as an absorbing means 2c of rubber material which is installed integrally between 2b) and absorbs it when the torsion force is generated to reduce the torsional vibration.

이러한 댐퍼풀리(2)는, 크랭크축(1)의 회전시 그 회전력은 허브(2a)에 전달하게 되고 허브(2a)에 전달된 회전력은 풀리(2b)에 전달하여 냉각수펌프와 발전기등을 구동시키도록 하는 것으로, 이때 엔진의 회전수에 따른 폭발력에 의하여 크랭크축(1)을 통해 허브(2a)에 토션력이 작용하여 토션진동이 발생하게 되면 그 토션진동을 흡수수단(2c)이 흡수하여 풀리(2b)에 자연스런 회전력을 전달하게 되므로서 진동소음을 감소시키도록 하였다.When the damper pulley 2 rotates the crankshaft 1, its rotational force is transmitted to the hub 2a, and the rotational force transmitted to the hub 2a is transmitted to the pulley 2b to drive a coolant pump and a generator. In this case, when the torsion force is generated by the torsional force acting on the hub 2a through the crankshaft 1 by the explosive force according to the rotational speed of the engine, the torsional vibration is absorbed by the absorbing means 2c. By transmitting a natural rotational force to the pulley (2b) to reduce the vibration noise.

그러나 이러한 댐퍼풀리(20)를 구성하는 흡수수단(2c)의 스프링상수(k)는 도 4 와 같이 회전속도의 변위에 관계없이 일정하게 작용하여 토션진동의 발생시 일정한 주파수만 튜닝할 수 있도록 되어 있어 설정된 회전속도이상으로의 상승시 이에 따르는 토션진동의 주파수는 튜닝할 수 없으므로 진동소음의 발생요인이 되는 문제점이 있었다.However, the spring constant k of the absorbing means 2c constituting the damper pulley 20 acts constantly regardless of the displacement of the rotational speed as shown in FIG. 4 so that only a certain frequency can be tuned when torsional vibration occurs. As the frequency of the torsion vibration is not adjustable when it rises above the set rotation speed, there is a problem of causing vibration noise.

본 발명은 이러한 종래의 문제점을 해결하고자 하는 것으로, 댐퍼풀리의 토션흡수수단내에 스프링상수가 다른 제2토션흡수수단을 설정된 간격마다 지그재그로 원주방향을 따라서 배열하므로서, 회전속도의 변위시 토션진동에 따른 2개의 회전주파수를 튜닝하고자 하는 데 있다.The present invention is to solve this conventional problem, by arranging the second torsion absorbing means having a different spring constant in the torsion absorbing means of the damper pulley along the circumferential direction in a zigzag at every set interval, so as to the torsion vibration when the rotational speed is displaced. To tune the two rotational frequencies accordingly.

본 발명은 이러한 목적을 달성하기 위한 기술적수단으로서, 크랭크축의 끝단에 일체로 조립되는 허브와, 크랭크축의 회전력을 벨트로 냉각수펌프와 발전기등을 구동시키도록 하는 동시에 토션력의 발생시 관성력으로 원활하게 회전시키도록 허브의 외주면에 일체로 조립되는 중량의 토션용 풀리와, 허브와 풀리사이에 일체로 설치되어 토션력의 발생시 이를 흡수하여 토션진동을 감소시키도록 하는 고무재의 토션흡수수단으로 구성한 댐퍼풀리에 있어서,The present invention is a technical means for achieving this object, the hub is integrally assembled to the end of the crankshaft, and the rotational force of the crankshaft to drive the cooling water pump and generator, etc. with a belt, and at the same time smoothly rotates by inertial force when torsional force is generated. A damper pulley composed of a torsion pulley having a weight that is integrally assembled on the outer circumferential surface of the hub and a torsion absorbing means of rubber material which is installed integrally between the hub and the pulley to absorb the torsional force when the torsion force is generated to reduce the torsion vibration. In

설정된 회전속도로의 상승 회전시 회전주파수를 튜닝하도록 토션흡수수단내에 설정된 간격마다 지그재그로 원주방향을 따라서 스프링상수가 다른 제2토션흡수수단을 배열하여 차량의 댐퍼풀리용 토션진동저감장치를 구성한 것이 본 발명의 특징이다.A torsional vibration reducing device for damper pulleys of a vehicle is constructed by arranging second torsion absorbing means having different spring constants along the circumferential direction in a zigzag at intervals set in the torsion absorbing means so as to tune the rotation frequency at the ascending rotation speed at the set rotation speed. It is a feature of the present invention.

도 1(가)(나)는 본 발명 댐퍼풀리의 정단면도로서 설정된 회전속도의 이하 및 이상시 제2토션흡수수단의 변형상태도Figure 1 (a) (b) is a modified cross-sectional view of the second torsion absorbing means at or below the rotational speed set as a front sectional view of the damper pulley of the present invention

도 2 는 본 발명의 토션흡수수단과 제2토션흡수수단에 의하여 회전변위에 따른 스프링상수의 변화를 나타낸 그래프도2 is a graph showing the change of the spring constant according to the rotational displacement by the torsion absorbing means and the second torsion absorbing means of the present invention;

도 3(가)(나) 는 종래 댐퍼풀리의 정단면도 및 측단면도Figure 3 (a) (b) is a front sectional view and a side sectional view of a conventional damper pulley

도 4 는 종래의 흡수수단에 의하여 회전변위에 따른 스프링상수를 나타낸 그래프도Figure 4 is a graph showing the spring constant according to the rotational displacement by the conventional absorbing means

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

10 : 크랭크축 20 : 댐퍼풀리10: crankshaft 20: damper pulley

21 : 허브 22 : 풀리21: Hub 22: Pulley

23 : 토션흡수수단 24 : 제2토션흡수수단23: torsion absorption means 24: second torsion absorption means

이하 본 발명을 첨부된 실시예의 도면을 참조하여 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1 은 본 발명 차량의 댐퍼풀리용 토션진동저감장치가 장착된 실시예를 도시한 것으로, 부호10은 상,하 왕복운동하는 각 피스톤에 의하여 회전하는 크랭크축이다.1 is a view showing an embodiment in which a torsional vibration reduction device for a damper pulley of the present invention is mounted, and reference numeral 10 denotes a crank shaft rotating by each piston for reciprocating up and down.

부호20은 크랭크축(10)에 일단에 일체로 조립되는 댐퍼풀리로서, 크랭크축(10)의 끝단에 일체로 조립되는 허브(21)와, 크랭크축(10)의 회전력을 벨트로 냉각수펌프와 발전기등을 구동시키도록 하는 동시에 토션력의 발생시 관성력으로 원활하게 회전시키도록 허브(21)의 외주면에 일체로 조립되는 중량의 토션용 풀리(22)로 구성된다.Reference numeral 20 denotes a damper pulley which is integrally assembled to the crankshaft 10 at one end. The hub 21 is integrally assembled at the end of the crankshaft 10 and the rotational force of the crankshaft 10 is connected to the coolant pump by a belt. It is composed of a torsion pulley 22 having a weight that is integrally assembled to the outer circumferential surface of the hub 21 to drive the generator and at the same time to rotate smoothly by the inertial force when the torsion force is generated.

상기 댐퍼풀리(20)에는 설정된 회전속도이하로의 회전시 토션진동의 주파수를 튜닝하여 소음을 저감시키도록 허브(21)와 풀리(22)사이에 고무재의 토션흡수수단(23)을 일체로 설치하며, 상기 토션흡수수단(23)은 관형으로 형성하여 허브(21)와 풀리(22)사이에 밀착고정되도록 한다.The damper pulley 20 is integrally provided with a torsion absorbing means 23 made of rubber material between the hub 21 and the pulley 22 so as to reduce the noise by tuning the frequency of the torsion vibration when rotating below the set rotation speed. The torsion absorbing means 23 is formed in a tubular shape so as to be closely fixed between the hub 21 and the pulley 22.

그리고 설정된 회전속도로의 상승 회전시 회전주파수를 튜닝하도록 토션흡수수단(23)내에 설정된 간격마다 지그재그로 원주방향을 따라서 스프링상수가 다른 제2토션흡수수단(24)을 배열하며, 제2토션흡수수단(24)은 여러개의 조각으로 배열하여 상호 지그재그로 이웃하는 조각들이 토션력에 의하여 밀착되도록 한다.And arranging second torsion absorbing means (24) having a different spring constant along the circumferential direction in a zigzag at intervals set in the torsion absorbing means (23) so as to tune the rotating frequency during the ascending rotation at the set rotating speed. The means 24 are arranged in pieces so that neighboring pieces are zig-zag close together by torsional force.

이와같이 구성된 본 발명의 차량의 댐퍼풀리에 대한 작용을 설명하면, 피스톤의 폭발력에 의하여 크랭크축(10)이 회전하게 되며, 크랭크축(10)의 회전시 댐퍼풀리(20)도 동시에 회전하게 된다.Referring to the operation of the damper pulley of the vehicle configured as described above, the crankshaft 10 is rotated by the explosion force of the piston, and the damper pulley 20 also rotates at the same time when the crankshaft 10 is rotated.

즉, 크랭크축(10)의 회전시 그 회전력은 허브(21)에 전달하게 되고 허브(21)에 전달된 회전력은 풀리(22)에 전달하여 냉각수펌프와 발전기등을 구동시키도록 하는 것으로, 이때 엔진의 회전수에 따른 폭발력에 의하여 크랭크축(10)을 통해 허브(21)에 토션력이 작용하여 토션진동이 발생하게 되면 그 토션진동에 따르는 주파수를 튜닝하여 진동소음을 감소시키게 된다.That is, when the crankshaft 10 rotates the rotational force is transmitted to the hub 21 and the rotational force transmitted to the hub 21 is transmitted to the pulley 22 to drive the coolant pump and the generator, etc. When the torsional force is generated by the torsional force acting on the hub 21 through the crankshaft 10 by the explosion force according to the rotational speed of the engine, the vibration noise is reduced by tuning the frequency according to the torsional vibration.

이때, 설정된 회전속도이하로의 회전시에는 도1의(가) 및 도2와 같이 토션력을 토션흡수수단(23)의 스프링상수(k1)가 저속회전주파수를 튜닝하여 진동소음을 감소시키게 되고, 설정된 회전속도이상으로의 회전시에는 토션흡수수단(23)만으로는 고속회전주파수를 튜닝할 수 없으므로 이때에는 도 1 의(나) 및 도 2 와 같이 관성력에 의하여 지그재그로 배열된 제2토션흡수수단(24)의 조각들이 상호 밀착하면서 제2토션흡수수단(24)의 스프링상수(k2)가 고속회전주파수를 튜닝하게 되는 것이다.At this time, when rotating below the set rotation speed, as shown in Figs. 1 and 2, the spring constant k 1 of the torsion absorbing means 23 tunes the low speed rotation frequency to reduce vibration noise. Since the high speed rotation frequency cannot be tuned by the torsion absorbing means 23 only when the rotation exceeds the set rotation speed, at this time, the second torsion absorption is arranged in a zigzag manner by inertia as shown in FIGS. 1 and 2. As the pieces of the means 24 are in close contact with each other, the spring constant k 2 of the second torsion absorbing means 24 is to tune the high speed rotation frequency.

이와같이 본 발명은 댐퍼풀리의 토션흡수수단내에 스프링상수가 다른 제2토션흡수수단을 설정된 간격마다 지그재그로 원주방향을 따라서 배열하므로서, 회전속도의 변위시 토션진동에 따른 2개의 회전주파수를 튜닝하여 진동소음을 감소시킬 수가 있는 효과가 있다.As described above, the present invention arranges the second torsion absorbing means having different spring constants in the torsion absorbing means of the damper pulley along the circumferential direction in a zigzag pattern at set intervals, thereby tuning two rotation frequencies according to the torsional vibration when the rotational speed is displaced. There is an effect that can reduce the noise.

Claims (1)

크랭크축의 끝단에 일체로 조립되는 허브와, 크랭크축의 회전력을 벨트로 냉각수펌프와 발전기등을 구동시키도록 하는 동시에 토션력의 발생시 관성력으로 원활하게 회전시키도록 허브의 외주면에 일체로 조립되는 중량의 토션용 풀리와, 허브와 풀리사이에 일체로 설치되어 토션력의 발생시 이를 흡수하여 토션진동을 감소시키도록 하는 고무재의 토션흡수수단으로 구성한 댐퍼풀리에 있어서, 설정된 회전속도로의 상승 회전시 회전주파수를 튜닝하도록 토션흡수수단내에 설정된 간격마다 지그재그로 원주방향을 따라서 스프링상수가 다른 제2토션흡수수단을 배열한 것을 특징으로 하는 차량의 댐퍼풀리용 토션진동저감장치.A torsional weight that is integrally assembled to the outer peripheral surface of the hub so that the hub, which is integrally assembled at the end of the crankshaft, and the rotational force of the crankshaft are driven by the belt to drive the coolant pump and the generator, and also rotate smoothly with inertia when the torsion occurs. A damper pulley composed of a rubber pulley and a torsion absorbing means of rubber material which is installed integrally between the hub and the pulley to absorb the torsional force and reduces the torsional vibration when the torsion force is generated. A torsional vibration reduction device for a damper pulley for a vehicle, characterized in that the second torsion absorbing means having a different spring constant along the circumferential direction is arranged in a zigzag at intervals set in the torsion absorbing means for tuning.
KR1019960065907A 1996-12-14 1996-12-14 Damper pulley KR100222714B1 (en)

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Publication number Priority date Publication date Assignee Title
US9291252B2 (en) 2013-09-25 2016-03-22 Hyundai Motor Company Alternator pulley, and mounting structure of alternator pulley and alternator for vehicle

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KR100723814B1 (en) * 2002-07-12 2007-05-31 한라공조주식회사 Power transmission gear for clutchless compressor

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JPS6453668U (en) * 1987-09-30 1989-04-03

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Publication number Priority date Publication date Assignee Title
JPS6453668U (en) * 1987-09-30 1989-04-03

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9291252B2 (en) 2013-09-25 2016-03-22 Hyundai Motor Company Alternator pulley, and mounting structure of alternator pulley and alternator for vehicle

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