KR0132505Y1 - Automatic balancing system of engine crankshaft - Google Patents

Automatic balancing system of engine crankshaft Download PDF

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Publication number
KR0132505Y1
KR0132505Y1 KR2019960009874U KR19960009874U KR0132505Y1 KR 0132505 Y1 KR0132505 Y1 KR 0132505Y1 KR 2019960009874 U KR2019960009874 U KR 2019960009874U KR 19960009874 U KR19960009874 U KR 19960009874U KR 0132505 Y1 KR0132505 Y1 KR 0132505Y1
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South Korea
Prior art keywords
crankshaft
engine
vehicle
vibration
mass
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KR2019960009874U
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Korean (ko)
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KR970058819U (en
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정재엽
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양재신
대우자동차주식회사
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Priority to KR2019960009874U priority Critical patent/KR0132505Y1/en
Publication of KR970058819U publication Critical patent/KR970058819U/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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/20—Shape of crankshafts or eccentric-shafts having regard to balancing
    • 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
    • F16F15/1204—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 with a kinematic mechanism or gear system
    • F16F15/1205—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 with a kinematic mechanism or gear system with a kinematic mechanism, i.e. linkages, levers
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

본 고안은 엔진의 크랭크샤프트에 관한 것으로, 일반적으로 차량의 엔진에 사용되는 크랭크샤프트는 크랭크 케이스 내에 설치되어 엔진의 각 실린더의 동력 행정시에 발생되는 피스톤의 동력을 회전운동력으로 바꾸어 엔진의 출력을 엔진 외부에 전달하며, 흡입·압축·배기 행정에서는 피스톤에 운동을 전달하는 것으로, 이러한 종래의 크랭크샤프트는 그 구조적인 형상에 의해 회전력이 커질수록 언밸런스에 의해 편심력이 커지므로 인해 엔진의 진동이 차량의 각 부에 전달되는 한편, 특히 차량의 실내로 전달되어 차량의 승차감을 나쁘게 하는 문제점이 있었다.The present invention relates to a crankshaft of an engine. In general, a crankshaft used for an engine of a vehicle is installed in a crankcase to change the power of a piston generated at the power stroke of each cylinder of the engine to a rotational motion to change the output of the engine. It transmits to the outside of the engine and transmits movement to the piston in the intake, compression, and exhaust stroke.The conventional crankshaft has an eccentric force due to unbalance as the rotational force increases due to its structural shape, so that the vibration of the engine While being delivered to each part of the vehicle, there is a problem in that it is particularly delivered to the interior of the vehicle to make the ride of the vehicle worse.

이에 본 고안은 상기와 같은 문제점을 해결하기 위하여, 차량의 엔진에 설치되는 크랭크샤프트에 있어서, 크랭크샤프트의 중심축을 따라 비접촉식 거리센서를 설치하여, 이 센서와 크랭크샤프트간의 거리를 감지하여 설정값 이상의 진동이 발생시에는 자동적으로 크랭크 내의 실린더홈에 설치되는 매스의 위치를 조정하여 크랭크샤프트가 균형을 잡도록 하여 진동을 저감시키도록 한 엔진 크랭크샤프트의 자동 밸런싱 시스템을 제공하여 엔진에 설치되는 크랭크샤프트의 회전에 따른 진동을 자동적으로 억제하게 하여 엔진의 진동이 발생하는 것을 저감되게 하여 차량의 진동 및 소음을 줄이게 되어 승차감을 좋게 할 뿐만 아니라, 차량의 각 부품의 마모도 줄일 수 있게 하는 효과가 있다.The present invention is to solve the above problems, in the crankshaft installed in the engine of the vehicle, by installing a non-contact distance sensor along the center axis of the crankshaft, by detecting the distance between the sensor and the crankshaft more than the set value In the event of vibration, the crankshaft installed in the engine is provided by providing an automatic balancing system of the engine crankshaft which reduces the vibration by automatically adjusting the position of the mass installed in the cylinder groove in the crank to balance the crankshaft. It is possible to automatically suppress the vibration caused by reducing the vibration of the engine to reduce the vibration and noise of the vehicle to improve the ride comfort as well as to reduce the wear of each component of the vehicle.

Description

엔진 크랭크샤프트의 자동 밸런싱 시스템Automatic balancing system of engine crankshaft

제1도는 일반적인 크랭크샤프트의 구성도.1 is a block diagram of a general crankshaft.

제2도는 본 고안에 의한 엔진 크랭크샤프트의 자동 밸런싱 시스템의 구성도.2 is a block diagram of an automatic balancing system of an engine crankshaft according to the present invention.

제3도는 본 고안에 의한 엔진 크랭크샤프트의 자동 밸런싱 시스템의 회로도이다.3 is a circuit diagram of an automatic balancing system of an engine crankshaft according to the present invention.

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

1 : 크랭크샤프트 2 : 거리센서1: crankshaft 2: distance sensor

3 : ECU 4 : 액튜에이터3: ECU 4: Actuator

5 : 구동풀리 6 : 스트링5: driving pulley 6: string

7 : 매스 8 : 실린더홈7: mass 8: cylinder groove

본 고안은 엔진의 크랭크샤프트에 관한 것으로, 엔진 크랭크샤프트의 고속회전에 따른 진동을 자동으로 감지하여 크랭크샤프트 내의 실린더홈에 구비되는 매스(mass)의 위치를 조정하여 크랭크샤프트의 균형을 잡아주어 진동을 억제하기 위한 것이다.The present invention relates to an engine crankshaft, which automatically detects vibrations caused by high-speed rotation of the engine crankshaft and adjusts the position of mass provided in the cylinder groove in the crankshaft to balance the crankshaft vibration. It is to suppress.

일반적으로, 차량의 엔진에 사용되는 크랭크샤프트는 크랭크 케이스 내에 설치되어 엔진의 각 실린더의 동력 행정시에 발생되는 피스톤의 동력을 회전 운동력으로 바꾸어 엔진의 출력을 엔진 외부에 전달하는 것으로, 흡입·압축·배기 행정에서 피스톤에 운동을 전달하는 장치이다.In general, the crankshaft used for the engine of the vehicle is installed in the crankcase and converts the power of the piston generated at the power stroke of each cylinder of the engine to rotational motion to transmit the output of the engine to the outside of the engine. It is a device that transmits the movement to the piston in the exhaust stroke.

이러한 종래의 크랭크샤프트는 제1도에서와 같이 그 구조적인 형상에 의해 회전력이 커질수록 언밸런싱(unbalancing)에 의해 편심력이 커지므로 인해 엔진의 진동이 차량의 각 부에 전달되는 바, 이 진동이 특히 차량의 실내로 전달되어 엔진 소음의 발생과 승차감을 나쁘게 하는 문제점이 있었다.In the conventional crankshaft as shown in FIG. 1, as the rotational force increases due to its structural shape, the eccentric force increases due to unbalancing, so that the vibration of the engine is transmitted to each part of the vehicle. In particular, there is a problem in that it is transmitted to the interior of the vehicle, causing the generation of engine noise and the riding comfort.

이에 본 고안은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 차량의 엔진에 설치되는 크랭크샤프트에 있어서, 크랭크샤프트의 중심축을 따라 비접촉식 거리센서를 설치하여, 이 센서와 크랭크샤프트간의 거리를 감지하여 설정값 이상의 진동이 발생시에는 자동적으로 크랭크 내의 실린더홈 설치되는 매스의 위치를 조정하여 크랭크샤프트가 균형을 잡도록 하여 진동을 저감시키도록 한 엔진 크랭크샤프트의 자동 밸런싱 시스템을 제공하는데 그 목적이 있다.The present invention is devised to solve the above problems, in the crankshaft installed in the engine of the vehicle, by installing a non-contact distance sensor along the central axis of the crankshaft, by detecting the distance between the sensor and the crankshaft It is an object of the present invention to provide an automatic balancing system of an engine crankshaft in which vibrations are reduced by adjusting the position of a mass installed in a cylinder groove in a crank so as to balance the crankshaft when vibrations exceed a set value.

상기와 같은 목적을 달성하기 위한 본 고안은 차량의 엔진에 설치되는 크랭크샤프트에 있어서, 크랭크샤프트의 중심축을 따라 설치되는 거리센서와, 상기 거리센서에서 감지되는 신호를 입력받아 진동의 정도를 판별하여 제어신호를 출력하는 ECU와, 상기 ECU에서 보내오는 제어신호에 의해 구동되어 크랭크샤프트 내의 매스 위치를 조정하는 액튜에이터를 포함하는 것을 특징으로 한다.The present invention for achieving the above object in the crankshaft installed in the engine of the vehicle, the distance sensor is installed along the central axis of the crankshaft, and the signal detected by the distance sensor to determine the degree of vibration And an actuator for controlling the mass position in the crankshaft driven by the ECU for outputting the control signal and the control signal sent from the ECU.

이하, 본 고안의 바람직한 실시예를 첨부된 예시 도면에 의거하여 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제2도에 도시된 바와 같이, 본 고안에 의한 엔진 크랭크샤프트의 자동 밸런싱 시스템은 크랭크샤프트(1)의 중심축을 따라 설치되어 크랭크샤프트(1)의 진동을 감지하여 전기신호를 출력하는 거리센서(2)와, 상기 거리센서(2)와 전기적으로 연결되어 상기 거리센서(2)에서 보내오는 신호를 입력받아 진동의 정도를 판별하여 제어신호를 내보내는 ECU(3)와, 상기 ECU(3)와 전기적으로 연결되어 상기 ECU(3)에서 내보내는 제어신호에 의해 구동되는 액튜에이터(4)와, 상기 액튜에이터(4)의 구동 풀리(5)에 스트링(6)으로 연결되어 위치가 조정되는 매스(7)와, 상기 매스(7)를 수용하여 상기 매스(7)가 크랭크샤프트(1) 내에서 이동하는 경로를 제공하는 실린더홈(8)을 포함하는 구조로 되어 있다.As shown in Figure 2, the automatic balancing system of the engine crankshaft according to the present invention is installed along the central axis of the crankshaft 1 distance sensor for detecting the vibration of the crankshaft (1) and outputting an electrical signal ( 2), an ECU 3 electrically connected to the distance sensor 2 to receive a signal from the distance sensor 2 to determine a degree of vibration, and to send a control signal to the ECU 3; An actuator 4 electrically connected and driven by a control signal emitted from the ECU 3, and a mass 7 connected to the drive pulley 5 of the actuator 4 by a string 6 to adjust a position thereof. And a cylinder groove 8 for receiving the mass 7 and providing a path through which the mass 7 moves within the crankshaft 1.

위와 같은 본 고안에 의한 엔진 크랭크샤프트의 자동 밸런싱 시스템의 작용 및 효과는 다음과 같다.The operation and effect of the automatic balancing system of the engine crankshaft according to the present invention as described above are as follows.

즉, 본 고안에 의한 엔진 크랭크샤프트의 자동 밸런싱 시스템은 크랭크샤프트(1)의 중심축을 따라 설치되는 거리센서(2)에서 상기 크랭크샤프트(1)의 중심축과 상기 거리센서(2)와의 거리를 검출하여 전기신호를 ECU(3)로 보내면, 상기 ECU(3)에서는 메모리에 기억되어 있는 설정값과 입력되는 검출값을 비교하여 현재 크랭크샤프트(1)의 진동이 소정치 이상일 때에는 액튜에이터(4)를 구동시켜서 구동 풀리(5)에 감겨 있는 스트링(6)을 당기거나 풀어서 크랭크샤프트(1) 내의 실린더홈(8) 내에 있는 매스(7)의 위치를 조정하게 된다.That is, the automatic balancing system of the engine crankshaft according to the present invention measures the distance between the central axis of the crankshaft 1 and the distance sensor 2 in the distance sensor 2 installed along the central axis of the crankshaft 1. When the electric signal is detected and sent to the ECU 3, the ECU 3 compares the set value stored in the memory with the input detected value and the actuator 4 when the vibration of the current crankshaft 1 is equal to or greater than a predetermined value. The position of the mass 7 in the cylinder groove 8 in the crankshaft 1 is adjusted by pulling or unwinding the string 6 wound around the drive pulley 5.

이때, 크랭크샤프트(1)의 원심력이 소정치 이상일 때에는 액튜에이터(4)를 정방향으로 회전시켜서 매스(7)를 중심축 방향으로 안으로 당기고, 소정치 이하일 때에는 액튜에이터(4)를 역방향으로 회전시켜서 원심력에 의해 매스(7)가 중심축에서 먼 바깥 방향으로 밀리도록 하여 크랭크샤프트(1)의 원심력과 편심력이 전체적으로 균형이 되도록 하여 진동을 억제시키게 된다.At this time, when the centrifugal force of the crankshaft 1 is greater than or equal to the predetermined value, the actuator 4 is rotated in the forward direction to pull the mass 7 in the direction of the central axis. As a result, the mass 7 is pushed outward from the central axis so that the centrifugal force and the eccentric force of the crankshaft 1 are generally balanced to suppress vibration.

이와 같이, 본 고안에 의한 엔진 크랭크샤프트의 자동 밸런싱 시스템은 엔진에 설치되는 크랭크샤프트의 회전에 따른 진동을 자동적으로 억제하게 하여 엔진의 진동이 발생하는 것을 저감되게 하여 차량의 진동 및 소음을 줄이게 되어 승차감을 좋게 할 뿐만 아니라, 차량의 각 부품의 마모도 줄일 수 있게 하는 효과가 있다.As such, the automatic balancing system of the engine crankshaft according to the present invention automatically suppresses the vibration caused by the rotation of the crankshaft installed in the engine, thereby reducing the occurrence of engine vibration and reducing the vibration and noise of the vehicle. In addition to improving the ride comfort, it is also possible to reduce wear of each component of the vehicle.

Claims (1)

차량의 엔진에 설치되는 크랭크샤프트 장치에 있어서, 크랭크샤프트(1)의 중심축을 따라 설치되어 크랭크샤프트(1)의 진동을 감지하여 전기신호를 출력하는 거리센서(2)와, 상기 거리센서(2)와 전기적으로 연결되어 상기 거리센서(2)에서 보내오는 신호를 입력받아 진동의 정도를 판별하여 제어신호를 내보내는 ECU(3)와, 상기 ECU(3)와 전기적으로 연결되어 상기 ECU(3)에서 내보내는 제어신호에 의해 구동되는 액튜에이터(4)와, 상기 액튜에이터(4)의 구동 풀리(5)에 스트링(6)으로 연결되어 위치가 조정되는 매스(7)와, 상기 매스(7)를 수용하여 상기 매스(7)가 크랭크샤프트(1) 내에서 이동하는 경로를 제공하는 실린더홈(8)를 포함하는 것을 특징으로 하는 엔진 크랭크샤프트의 자동 밸런싱 시스템.In the crankshaft device installed in the engine of the vehicle, the distance sensor (2) is installed along the central axis of the crankshaft (1) to detect the vibration of the crankshaft (1) and output an electrical signal, and the distance sensor (2) And an ECU 3 electrically connected to the ECU 3 to receive a signal from the distance sensor 2 and to determine a degree of vibration and to send a control signal, and to be electrically connected to the ECU 3. An actuator 4 driven by a control signal emitted from the controller, a mass 7 connected to the drive pulley 5 of the actuator 4 by a string 6 to adjust its position, and the mass 7 is accommodated. And a cylinder groove (8) for providing a path through which the mass (7) moves within the crankshaft (1).
KR2019960009874U 1996-04-30 1996-04-30 Automatic balancing system of engine crankshaft KR0132505Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040022962A (en) * 2002-09-10 2004-03-18 현대자동차주식회사 Crank sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040022962A (en) * 2002-09-10 2004-03-18 현대자동차주식회사 Crank sensor

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