KR20050033711A - Hydraulic type back lash termination device of inter driven cam system in vehicle - Google Patents

Hydraulic type back lash termination device of inter driven cam system in vehicle Download PDF

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Publication number
KR20050033711A
KR20050033711A KR1020030069557A KR20030069557A KR20050033711A KR 20050033711 A KR20050033711 A KR 20050033711A KR 1020030069557 A KR1020030069557 A KR 1020030069557A KR 20030069557 A KR20030069557 A KR 20030069557A KR 20050033711 A KR20050033711 A KR 20050033711A
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South Korea
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gears
driven gear
oil
high pressure
engine
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KR1020030069557A
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Korean (ko)
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KR100569389B1 (en
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이종원
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현대자동차주식회사
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02Valve drive
    • F01L1/026Gear drive
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20Adjusting or compensating clearance
    • F01L1/22Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

A hydraulic back lash removing device for an inter-cam driving system of a vehicle is provided to cut off rattling noise generated between gears by applying hydraulic pressure for absorbing the whole back lash generated between the gears according to the driving power of an engine and torque to the gears. A timing control unit is installed at the end of intake/exhaust cam shafts(100,100') for opening and closing intake/exhaust valves, engaged and rotated together, and composed of a pair of first and second driven gears(10,10';20,20') combined by bosses projected and fitted to each other, and installed with a high-pressure chamber filled with high-pressure oil fed from the outside and a scissor spring installed between the first and second driven gears to absorb rotary power of the second driven gear moving relatively to the fixed first driven gear by elastic power. A high-pressure oil supply unit is composed of an oil pump(70) connected to the high-pressure chamber of the timing control unit through an oil supply line to form the oil circulating through an engine at high pressure; a controller(80) controlling the oil pump; and an input unit(90) for measuring free rotation of the second driven gear by a strain sensor(90a) disposed at the second driven gear, detecting the state of the engine by a vehicle speed sensor(90b) and an RPM(Revolution Per Minute) sensor(90c), and then transmitting the detected result to the controller.

Description

차량용 캠간 구동시스템의 유압식 백래쉬 제거 장치{Hydraulic type back lash termination device of inter driven cam system in vehicle}Hydraulic type back lash termination device of inter driven cam system in vehicle}

본 발명은 차량용 캠간 구동시스템에 관한 것으로, 보다 상세하게는 유압을 이용해 서로 치합된 기어간에 발생되는 백래쉬를 제거할 수 있도록 된 차량용 캠간 구동시스템의 유압식 백래쉬 제거 장치에 관한 것이다.The present invention relates to a vehicle cam-to-cam drive system, and more particularly to a hydraulic backlash removal device of the vehicle cam-to-cam drive system that can remove backlash generated between the gears meshed with each other using the hydraulic pressure.

일반적으로 동력을 발생하는 엔진의 연소실을 적절한 타이밍으로 개폐하는 밸브는 크랭크샤프트에 연결된 밸브 개폐 기구에 의해 개폐가 이루어지게 되고, 이러한 밸브는 그 구동 방식에 따라 1개의 캠축으로 모든 밸브를 작동시키는 싱글 오버 헤드 캠축(SINGLE OVER HEAD CAMSHAFT, 일명 SOHC로 약칭함)과, 2개의 캠축으로 각각 흡,배기 밸브를 작동시키는 더블 오버 헤드 캠축(DOUBLE OVER HEAD CAMSHAFT, 일명 DOHC로 약칭함)이 있다.In general, a valve that opens and closes a combustion engine of a power generating engine at an appropriate timing is opened and closed by a valve opening and closing mechanism connected to a crankshaft, and such a valve is a single valve that operates all the valves with one camshaft according to its driving method. There is an overhead camshaft (abbreviated as SINGLE OVER HEAD CAMSHAFT, also known as SOHC), and a double overhead camshaft (abbreviated as DOUBLE OVER HEAD CAMSHAFT, also known as DOHC) that operates the intake and exhaust valves respectively with two camshafts.

그리고, 상기 DOHC엔진은 실린더마다 2개씩의 흡,배기밸브를 각각 작동시키게 되어 있어 구조가 복잡하고,소음이 심하며, 각각의 밸브를 구동하기 위한 동력의 소모가 SOHC(Single Over Head Camshaft)방식 보다 큰 문제점이 있지만, DOHC 엔진은 각 실린더에 두개의 흡기 밸브와 두개의 배기 밸브가 설치되어 각각 상기 흡기용캠샤프트 및 배기용캠샤프트에 의해 동시 작동되어 연소실내의 흡기 및 배기 성능이 향상 즉, DOHC 엔진은 하나의 캠축을 사용하는 SOHC 엔진에 비하여 이상적인 연소실을 형성할 수 있으므로 고속에서 안정된 밸브 개폐 작동을 할 수 있고 또 저속에서 고속까지 신속하게 회전을 높일 수 있는 특성이 있게 된다.In addition, the DOHC engine operates two intake and exhaust valves for each cylinder, which is complicated in structure, high in noise, and consumes more power than the single over head camshaft (SOHC) method. Although there is a big problem, the DOHC engine is provided with two intake valves and two exhaust valves in each cylinder to be simultaneously operated by the intake cam shaft and the exhaust cam shaft, respectively, so that the intake and exhaust performance in the combustion chamber is improved, that is, the DOHC engine Compared to the SOHC engine using a single camshaft, the combustion chamber can form an ideal combustion chamber at high speed and stable valve opening and closing, and has the characteristics of increasing the rotation from low speed to high speed quickly.

그러나, 이와 같은 DOHC 엔진은 흡기·배기용 캠 샤프트 중 1개가 직접 동력을 전달하는 반면 다른 하나는 이로부터 동력을 전달받게 되고 이를 위해, 상기 캠간 구동시스템은 기어를 이용하게 되는데 이는, 서로 치합되는 특성상 기어이의 물림율 향상이나 기어 정도의 향상을 통해서는 구동기어와 피동기어간의 간극인 백래쉬(Back-Lash)에 의해 필히 발생되는 래틀(Rattle)소음을 저감하는데 한계가 있게 된다.However, in such a DOHC engine, one of the intake / exhaust camshafts directly transmits power, while the other receives power therefrom. For this purpose, the inter-cam drive system uses gears, which are engaged with each other. Due to the characteristics, the increase in the bit rate of the gears and the increase in the degree of gearing have a limit in reducing the noise generated by the backlash, which is a gap between the driving gear and the driven gear.

이에 따라, 상기 캠간 구동시스템은 치차간에 발생되는 백래쉬를 제거하기 위해 시저스 스프링력을 이용한 백래쉬 보상기어인 시저스기어를 사용하게 되는데, 이와 같은 시저스기어는 고정된 기어와 자유 회전되는 기어를 서로 결합한 상태에서 그 사이에 개재된 시저스스프링이 회전되려는 기어의 회전 방향과 반대로 스프링의 탄성력을 발생해 항상 접촉상태를 유지시켜 줌으로 써 백래쉬를 제거해 래틀소음도 저감하도록 된 것이다.Accordingly, the cam-to-cam drive system uses a scissor gear, which is a backlash compensation gear using a scissor spring force, to remove backlash generated between the gears. Such a scissor gear combines a fixed gear and a freely rotating gear with each other. In order to reduce the rattle noise by eliminating backlash, the scissor springs interposed between them generate elastic force of the spring opposite to the direction of rotation of the gear to rotate.

그러나, 이와 같은 시저스기어는 두 기어간에 개재된 시저스스프링의 스프링력을 이용해 작동되어 엔진 구동력이나 캠 토크 변화에 대응하여 그에 상응되는 탄성력을 최적으로 발생시켜 래틀 소음을 효과적으로 저감하기에는 한계가 있는데, 이는 상기 시저스스프링을 강한 스프링력으로 하는 경우 시저스기어의 내구성에 문제가 되고 이와 반대로 시저스스프링을 약한 스프링력으로 하는 경우 래틀 소음 저감효과가 미비해 시저스스프링의 적절한 스프링력을 결정하는데 상당한 어려움이 있으며 내구성과 래틀소음저감을 동시에 만족하기에 용이하지 않은 문제가 있게 된다. However, such a scissor gear is operated by using the spring force of the scissor spring interposed between the two gears, and thus, there is a limit to effectively reduce the rattle noise by optimally generating a corresponding elastic force corresponding to the engine driving force or cam torque change. When the scissor spring is used as a strong spring force, it is a problem for the durability of the scissor gear. On the contrary, when the scissor spring is used as a weak spring force, it is difficult to determine the proper spring force of the scissor spring due to the lack of the rattle noise reduction effect. There is a problem that is not easy to satisfy the rattle noise reduction at the same time.

이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, 캠간 구동시스템을 이루는 타이밍제어유니트의 기어내로 엔진 구동력이나 토크등의 조건에 따라 고압 오일을 공급해 발생된 유압을 매개로 서로 치합되어 회전되는 기어간에 발생되는 백래쉬를 제거해 항상 최적의 래틀 소음을 제거함에 그 목적이 있다.Accordingly, the present invention has been invented in view of the above-mentioned problems, and the high pressure oil is supplied to the gears of the timing control unit constituting the drive system between the cams to rotate with each other through the oil pressure generated by supplying the high pressure oil. The purpose is to eliminate backlash generated between gears and always remove optimum rattle noise.

상기와 같은 목적을 달성하기 위한 본 발명은, 서로 끼워지도록 돌출된 보스를 매개로 결합되면서 외부로부터 공급되는 고압오일을 충진하는 고압챔버가 형성된 한 쌍의 제1·2종동기어와, 이 제1·2종동기어사이에 구비되어 고정된 제1종동기어에 대해 상대 운동하는 제2종동기어의 회전력을 탄성력을 매개로 흡수하는 시저스스프링으로 이루어져 흡·배기밸브를 개·폐하는 흡·배기용캠샤프트의 일단에 각각 구비되어 서로 치합되면서 회전되는 타이밍제어유니트와;The present invention for achieving the above object is a pair of first and second driven gears formed with a high-pressure chamber for filling the high-pressure oil supplied from the outside while being coupled via a boss protruding to fit each other, and the first Intake / exhaust camshaft which opens / closes the intake / exhaust valves and consists of a scissor spring which absorbs the rotational force of the second driven gear relative to the fixed first driven gear between the two driven gears by the elastic force. A timing control unit which is respectively provided at one end of the gear and rotates while being engaged with each other;

엔진을 순환하는 오일을 고압으로 형성하여 상기 타이밍제어유니트에 형성된 고압챔버로 오일 공급라인을 매개로 연결된 오일펌프와, 이 오일펌프를 제어하는 콘트롤러 및 제2종동기어에 구비된 스트레인센서를 통해 제2종동기어의 자유 회전되는 정도를 측정하고 차속센서와 rpm센서를 통해 엔진 상태를 감지하여 콘트롤러로 전송하는 입력수단으로 이루어진 고압오일공급수단으로 구성된 것을 특징으로 한다.The oil circulating engine is formed at high pressure by an oil pump connected to the high pressure chamber formed in the timing control unit through an oil supply line, a controller controlling the oil pump, and a strain sensor provided in the second driven gear. It is characterized by consisting of a high-pressure oil supply means consisting of an input means for measuring the degree of free rotation of the second driven gear and the engine means through the vehicle speed sensor and rpm sensor to transmit to the controller.

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 1은 본 발명에 따른 차량용 캠간 구동시스템의 유압식 백래쉬 제거 장치의 구성도를 도시한 것인바, 본 발명은 엔진의 실린더헤드부위에 구비되어 엔진의 동력을 이용해 회전되면서 흡·배기밸브를 개·폐하는 흡·배기용캠샤프트(100,100')와, 이 흡·배기용캠샤프트(100,100')의 일단에 각각 구비되어 서로 치합되면서 회전됨에 따라 흡·배기밸브의 개·폐 타이밍을 제어하는 타이밍제어유니트, 엔진 상태와 타이밍제어유니트의 상태를 감지해 타이밍제어유니트쪽으로 고압의 오일을 공급해 서로 치합되어 회전하는 기어에서 발생되는 백래쉬를 제거하여 치차간의 래틀소음을 제거하는 고압오일공급수단으로 이루어진다.1 is a block diagram of a hydraulic backlash removal device of a cam drive system for a vehicle according to the present invention, the present invention is provided on the cylinder head of the engine is rotated using the power of the engine to open and close the intake and exhaust valves The timing control unit which controls the opening / closing timing of the intake / exhaust valve as it is disposed at each end of the intake / exhaust cam shaft (100, 100 ') and the intake / exhaust cam shaft (100,100') is rotated while being engaged with each other. It consists of high pressure oil supply means for detecting the engine state and the state of the timing control unit, supplying high pressure oil to the timing control unit, eliminating backlash generated from the gears which are engaged with each other and removing the rattle noise between gears.

그리고, 상기 타이밍제어유니트는 도 2에 도시된 바와 같이 흡·배기용캠샤프트(100,100')에 의해 회전되면서 서로 끼워지도록 돌출된 보스(11,11';21,21')를 매개로 결합되는 한 쌍의 제1·2종동기어(10,10';20,20')와, 이 제1·2종동기어(10,10';20,20')에 구비된 도웰핀(12,12';22,22')에 절단된 양단이 위치되어 캠샤프트(100,100')에 고정된 제1종동기어(10,10')에 비해 자유 회전되는 제2종동기어(20,20')의 회전력을 탄성력을 매개로 흡수하는 시저스스프링(30) 및 상기 제1·2종동기어(10,10';20,20')의 축 방향 상대운동이나 고정되는 접촉면적을 증대시키기위한 다수의 링(40)으로 이루어진다.As long as the timing control unit is rotated by the intake / exhaust camshafts 100 and 100 'as shown in FIG. 2, the timing control unit is coupled via the bosses 11 and 11'; Pairs of first and second driven gears (10, 10 '; 20, 20') and dowel pins (12, 12 ') provided in the first and second driven gears (10, 10'; 20, 20 '); 22, 22 ') and both ends are cut and the rotational force of the second driven gear (20, 20') that is freely rotated compared to the first driven gear (10, 10 ') fixed to the cam shaft (100, 100') With a plurality of rings 40 to increase the axial relative movement or fixed contact area of the scissor spring 30 and the first and second driven gears 10, 10 '; 20, 20' absorbed by Is done.

여기서, 상기 제1·2종동기어(10,10';20,20')의 보스(11,11';21,21')에는 고압오일공급수단으로부터 공급되는 고압오일을 충진하는 고압챔버(50)가 형성되는데, 이 고압챔버(50)는 도 3에 도시된 바와 같이 상기 제1종동기어(10,10')의 보스(11,11')와 이를 수용하면서 밀착되는 제2종동기어(20,20')의 보스(21,21')사이에서 일치되는 위치로 각각 소정 깊이와 넓이로 형성된 충진챔버(51,52)와, 이 충진챔버(51,52)에 삽입되어 그 내부 공간을 밀폐시키도록 각각 돌출시킨 격벽(51',52') 및 고압오일공급수단으로부터 오일이 일 방향 흐르도록 충진챔버(51,52)전단에 구비된 첵밸브(60)로 이루어진다.Here, the bosses 11, 11 '; 21, 21' of the first and second driven gears 10, 10 '; 20, 20' are filled with a high pressure oil 50 supplied from a high pressure oil supply means. The high pressure chamber 50 has a boss 11, 11 'of the first driven gear 10, 10' and a second driven gear 20 in close contact therewith as shown in FIG. And the filling chambers 51 and 52 formed at predetermined depths and widths, respectively, at positions coinciding between the bosses 21 and 21 'of the 20' and the filling chambers 51 and 52 to seal the internal spaces. And a check valve 60 provided at the front end of the filling chambers 51 and 52 so that the oil flows in one direction from the partition walls 51 'and 52' which protrude from each other.

이때, 상기 격벽(51',52')은 도 4에 도시된 바와 같이 서로 인접되는 위치로 형성해 제1·2종동기어(10,10';20,20')의 보스(11,11';21,21')에 충진챔버(51,52)내 유압이 고르게 작용하도록 함은 물론이다.At this time, the partitions 51 'and 52' are formed at positions adjacent to each other as shown in Fig. 4, and the bosses 11 and 11 'of the first and second driven gears 10 and 10'; 21, 21 ') of the hydraulic pressure in the filling chamber (51, 52) is, of course.

한편, 상기 고압오일공급수단은 엔진을 순환하는 오일을 고압으로 형성하여 타이밍제어유니트에 형성된 고압챔버(50)로 오일 공급라인을 매개로 연결된 오일펌프(70)와, 이 오일펌프(70)를 제어하는 콘트롤러(80) 및 제2종동기어(20,20')에 구비된 스트레인센서(90a)를 통해 제2종동기어(20,20')의 자유 회전되는 정도를 측정하고 차속센서(90b)와 rpm센서(90c)를 통해 엔진 상태를 감지하여 콘트롤러(80)로 전송하는 입력수단(90)으로 이루어진다.On the other hand, the high pressure oil supply means to form the oil circulating the engine at a high pressure to the oil pump 70 connected via the oil supply line to the high pressure chamber 50 formed in the timing control unit and the oil pump 70 Measure the degree of free rotation of the second driven gear (20, 20 ') through the strain sensor (90a) provided in the controller 80 and the second driven gear (20, 20') to control and the vehicle speed sensor (90b) And an input means 90 which senses the engine state through the rpm sensor 90c and transmits it to the controller 80.

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

본 발명은 콘트롤러(80)가 엔진과 캠간 구동시스템 및 타이밍제어유니트의 상태를 측정하여 이를 통해 타이밍제어유니트쪽으로 고압 오일의 공급여부를 결정하게 되는데 즉, 상기 콘트롤러(80)의 판단 기준을 제공하는 입력수단(90)의 스트레인센서(90a)를 통해 서로 상대 운동하는 타이밍제어유니트의 제1·2종동기어(10,10';20,20')로 부터 제2종동기어(20,20')에서 발생되는 자유 회전되는 정도를 측정하여 판단 기준으로 결정하게 된다.In the present invention, the controller 80 measures the state of the engine and the cam drive system and the timing control unit to determine whether the high pressure oil is supplied to the timing control unit, that is, to provide a criterion of the controller 80. From the first and second driven gears 10, 10 '; 20, 20' of the timing control unit, which are relative to each other through the strain sensor 90a of the input means 90, the second driven gear 20, 20 '. By measuring the degree of free rotation generated in the determination will be determined.

즉, 만약 상기 제2종동기어(20,20')의 회전정도가 치차간의 백래쉬에 의해 래틀소음 발생을 일으키는 정도라고 판단되지 않으면 콘트롤러(80)에서 제어신호를 발생시키지 않는 반면, 이와 반대로 치차간의 백래쉬를 통한 래틀소음 발생을 일으키는 정도라고 판단되면 다시 엔진 상태에 대한 판단을 하게 된다.That is, if the degree of rotation of the second driven gears 20 and 20 'is not determined to cause rattle noise by backlash between the gears, the controller 80 does not generate a control signal. When it is determined that the rattle noise is generated through the backlash, the engine condition is judged again.

이어, 상기 콘트롤러(80)는 입력수단(90)의 차속센서(90b)와 rpm센서(90c)를 통해 측정된 엔진 상태에다 스트레인센서(90a)를 통해 먼저 판단된 래틀소음 차단을 위한 타이밍제어유니트를 이루는 제1·2종동기어(10,10';20,20')에서 요구되는 고압챔버(50)내 적정 유압 값을 결정하게 된다.Subsequently, the controller 80 is an engine state measured by the vehicle speed sensor 90b and the rpm sensor 90c of the input unit 90 and the timing control unit for blocking the rattle noise first determined by the strain sensor 90a. The proper hydraulic pressure value in the high pressure chamber 50 required by the first and second driven gears 10, 10 '; 20, 20' is formed.

이와 같이, 상기 콘트롤러(80)에서 결정된 적정 유압 값을 형성하도록 오일펌프(70)를 구동시켜 오일 라인을 통해 고압챔버(50)로 공급하면, 격벽(51',52')에 의해 내부 공간이 밀폐된 고압챔버(50)내는 상기 콘트롤러(80)에 의해 설정된 적정 유압이 충진되는 오일에 의해 형성되어진다.As such, when the oil pump 70 is driven to form the appropriate hydraulic pressure value determined by the controller 80 and supplied to the high pressure chamber 50 through the oil line, the internal space is formed by the partition walls 51 'and 52'. The closed high pressure chamber 50 is formed by oil filled with the appropriate hydraulic pressure set by the controller 80.

이에 따라, 상기 흡·배기용캠샤프트(100,100')의 일단에 구비되어 회전되어 흡·배기밸브의 개·폐 타이밍을 제어하는 타이밍제어유니트를 이루는 제1·2종동기어(10,10';20,20')간의 상대운동에 따른 백래쉬 즉, 고정된 제1종동기어(10,10')에 대해 자유 회전되는 제2종동기어(20,20')의 회전력을 고압챔버(50)내 충진된 유압을 매개로 흡수해 치차간의 래틀 소음 발생을 차단하는 작용을 유압을 통해 수행하게 된다.Accordingly, the first and second driven gears 10 and 10 'are provided at one end of the intake / exhaust cam shafts 100 and 100' to form a timing control unit that rotates to control the opening and closing timing of the intake and exhaust valves. 20 ') backlash according to the relative movement, that is, the rotational force of the second driven gear (20, 20') freely rotated with respect to the fixed first driven gear (10, 10 ') is filled in the high-pressure chamber (50) The hydraulic pressure is absorbed through the medium to block the generation of rattle noise between the gears.

이상 설명한 바와 같이 본 발명에 의하면, 엔진 구동력이나 토크등의 조건에 따라 캠간 구동시스템의 기어간에 발생되는 전 영역의 백래쉬를 흡수할 수 있는 유압을 기어간에 형성시켜 서로 치합되어 회전되는 치차간의 래틀 소음 발생을 항상 차단할 수 있는 효과가 있게 된다.As described above, according to the present invention, a rattle noise between gears that are formed by forming a hydraulic pressure between the gears that can absorb backlash of the entire area generated between the gears of the inter-cam drive system according to conditions such as engine driving force or torque is engaged with each other. There is an effect that can always block the occurrence.

또한, 본 발명은 캠간 구동시스템은 치차간에 발생되는 백래쉬를 유압을 매개로 제거하므로 서로 결합된 두 기어간에 개재된 시저스스프링의 스프링력을 이용할 때 발생되는 시저스스프링의 스프링력 결정에 대한 어려움이 전혀 없으면서도 기어의 내구성과 래틀소음저감을 동시에 만족할 수 있는 효과가 있게 된다.In addition, the present invention is because the cam-to-cam drive system removes backlash generated between the gears by hydraulic pressure, so that there is no difficulty in determining the spring force of the scissor spring generated when using the spring force of the scissor spring interposed between two gears coupled to each other. Without the durability of the gears and rattle noise reduction effect can be satisfied at the same time.

도 1은 본 발명에 따른 차량용 캠간 구동시스템의 유압식 백래쉬 제거 장치의 구성도1 is a block diagram of a hydraulic backlash removal device of a vehicle cam-drive system according to the present invention

도 2는 본 발명에 따른 차량용 캠간 구동시스템의 기어부 구성도Figure 2 is a block diagram of the gear unit of the cam-drive system for a vehicle according to the present invention

도 3은 본 발명에 따른 기어부의 백래쉬 제거를 위해 기어부에 오일을 공급받는 고압실이 형성된 단면 구성도Figure 3 is a cross-sectional configuration in which a high pressure chamber receiving oil is supplied to the gear unit for removing the backlash of the gear unit according to the present invention

도 4는 도 3에 따른 측면 구성도 4 is a side configuration diagram according to FIG.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10,10' : 제1종동기어 11,11',21,21' : 보스10,10 ': 1st driven gear 11,11', 21,21 ': boss

12,12',22,22' : 도웰핀 20,20' : 제2종동기어12,12 ', 22,22': Dowel pin 20,20 ': 2nd driven gear

30 : 시저스스프링 40 : 링30: Caesar Spring 40: Ring

50 : 고압챔버 51,52 : 충진챔버50: high pressure chamber 51, 52: filling chamber

51',52' : 격벽 60 : 첵밸브51 ', 52': Bulkhead 60: Check valve

70 : 오일펌프 80 : 콘트롤러70: oil pump 80: controller

90 : 입력수단 90a : 스트레인센서90: input means 90a: strain sensor

90b : 차속센서 90c : rpm센서90b: vehicle speed sensor 90c: rpm sensor

100,100' : 흡·배기용캠샤프트100,100 ': Camshaft for intake and exhaust

Claims (2)

서로 끼워지도록 돌출된 보스(11,11';21,21')를 매개로 결합되면서 외부로부터 공급되는 고압오일을 충진하는 고압챔버(50)가 형성된 한 쌍의 제1·2종동기어(10,10';20,20')와, 이 제1·2종동기어(10,10';20,20')사이에 구비되어 고정된 제1종동기어(10,10')에 대해 상대 운동하는 제2종동기어(20,20')의 회전력을 탄성력을 매개로 흡수하는 시저스스프링(30)으로 이루어져 흡·배기밸브를 개·폐하는 흡·배기용캠샤프트(100,100')의 일단에 각각 구비되어 서로 치합되면서 회전되는 타이밍제어유니트와;A pair of first and second driven gears 10 having a high pressure chamber 50 for filling high pressure oil supplied from the outside while being coupled via bosses 11, 11 ′; 21, 21 ′ protruding to be fitted to each other; 10 '; 20, 20' and the first and second driven gears (10, 10 '; 20, 20') provided in the relative movement with respect to the fixed first driven gear (10, 10 ') Composed of a scissor spring (30) for absorbing the rotational force of the two driven gear (20, 20 ') by the elastic force as a medium provided on one end of the intake and exhaust cam shaft (100, 100') for opening and closing the intake and exhaust valves, respectively A timing control unit which rotates while being engaged; 엔진을 순환하는 오일을 고압으로 형성하여 상기 타이밍제어유니트에 형성된 고압챔버(50)로 오일 공급라인을 매개로 연결된 오일펌프(70)와, 이 오일펌프(70)를 제어하는 콘트롤러(80) 및 제2종동기어(20,20')에 구비된 스트레인센서(90a)를 통해 제2종동기어(20,20')의 자유 회전되는 정도를 측정하고 차속센서(90b)와 rpm센서(90c)를 통해 엔진 상태를 감지하여 콘트롤러(80)로 전송하는 입력수단(90)으로 이루어진 고압오일공급수단으로 구성된 차량용 캠간 구동시스템의 유압식 백래쉬 제거 장치. The oil circulating engine is formed at a high pressure, and the oil pump 70 connected to the high pressure chamber 50 formed in the timing control unit via an oil supply line, the controller 80 controlling the oil pump 70, and The degree of free rotation of the second driven gears 20 and 20 'is measured through the strain sensors 90a provided in the second driven gears 20 and 20', and the vehicle speed sensor 90b and the rpm sensor 90c are measured. Hydraulic backlash removal device of the vehicle-to-cam drive system consisting of a high-pressure oil supply means consisting of an input means (90) for detecting the engine state through the transmission to the controller (80). 제 1항에 있어서, 상기 고압챔버(50)는 제1종동기어(10,10')의 보스(11,11')와 이를 수용하면서 밀착되는 제2종동기어(20,20')의 보스(21,21')사이에서 일치되는 위치로 각각 소정 깊이와 넓이로 형성된 충진챔버(51,52)와, 이 충진챔버(51,52)에 삽입되어 그 내부 공간을 밀폐시키도록 각각 돌출시킨 격벽(51',52') 및 고압오일공급수단으로부터 오일이 일 방향 흐르도록 충진챔버(51,52)전단에 구비된 첵밸브(60)로 이루어진 것을 특징으로 하는 차량용 캠간 구동시스템의 유압식 백래쉬 제거 장치.According to claim 1, wherein the high-pressure chamber 50 is the boss (11, 11 ') of the first driven gear (10, 10') and the boss of the second driven gear (20, 20 ') in close contact with it ( Filling chambers 51 and 52 formed at predetermined depths and widths at positions corresponding to the positions 21 and 21 ', and partition walls which are inserted into the filling chambers 51 and 52 and protrude to seal the inner space thereof. 51 ', 52') and hydraulic backlash removal device for a cam-drive system for a vehicle, characterized in that it consists of a check valve (60) provided at the front end of the filling chamber (51, 52) so that the oil flows from the high pressure oil supply means in one direction.
KR1020030069557A 2003-10-07 2003-10-07 Hydraulic type back lash termination device of inter driven cam system in vehicle KR100569389B1 (en)

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Cited By (3)

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US9664251B2 (en) 2015-01-09 2017-05-30 Deere & Company Coupler for translating rotational forces
KR20190076240A (en) 2017-12-22 2019-07-02 현대자동차주식회사 Camshaft unit for vehicle
CN114483883A (en) * 2022-03-10 2022-05-13 苏州金亿精密齿轮有限公司 Backlash-free meshing gear

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* Cited by examiner, † Cited by third party
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KR101305618B1 (en) * 2007-11-13 2013-09-09 현대자동차주식회사 Camshaft unit of vehicle
KR101768397B1 (en) 2016-11-11 2017-08-17 이말연 Power transmitting apparatus for generator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9664251B2 (en) 2015-01-09 2017-05-30 Deere & Company Coupler for translating rotational forces
KR20190076240A (en) 2017-12-22 2019-07-02 현대자동차주식회사 Camshaft unit for vehicle
CN109958488A (en) * 2017-12-22 2019-07-02 现代自动车株式会社 Camshaft unit for vehicle
CN114483883A (en) * 2022-03-10 2022-05-13 苏州金亿精密齿轮有限公司 Backlash-free meshing gear
CN114483883B (en) * 2022-03-10 2024-04-12 苏州金亿精密齿轮有限公司 Backlash-free meshing gear

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