KR200178410Y1 - Valve operation tool - Google Patents

Valve operation tool Download PDF

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Publication number
KR200178410Y1
KR200178410Y1 KR2019970039948U KR19970039948U KR200178410Y1 KR 200178410 Y1 KR200178410 Y1 KR 200178410Y1 KR 2019970039948 U KR2019970039948 U KR 2019970039948U KR 19970039948 U KR19970039948 U KR 19970039948U KR 200178410 Y1 KR200178410 Y1 KR 200178410Y1
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KR
South Korea
Prior art keywords
valve
rocker arm
spherical
actuating mechanism
tip
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Application number
KR2019970039948U
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Korean (ko)
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KR19990027358U (en
Inventor
이현철
Original Assignee
정몽규
현대자동차주식회사
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Priority to KR2019970039948U priority Critical patent/KR200178410Y1/en
Publication of KR19990027358U publication Critical patent/KR19990027358U/en
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Publication of KR200178410Y1 publication Critical patent/KR200178410Y1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/16—Silencing impact; Reducing wear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2810/00—Arrangements solving specific problems in relation with valve gears
    • F01L2810/02—Lubrication

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

본 고안의 목적은 접촉 부분에의 윤활을 원활히 하고 마찰력을 감소시켜 내구성을 향상시킨 밸브 작동기구를 제공하는 데 있다.It is an object of the present invention to provide a valve actuating mechanism that improves durability by smoothing lubrication of contact portions and reducing friction.

본 고안은 상기한 목적을 달성하기 위하여 간극 조정기구(3)를 갖는 로커암(1)과 밸브 브릿지(12)를 포함하는 밸브 작동기구에 있어서,The present invention provides a valve operating mechanism including a rocker arm 1 and a valve bridge 12 having a gap adjusting mechanism 3 to achieve the above object,

상기 간극 조정기구는 로커암에 대하여 어느 정도 유격을 가지고 움직일 수 있도록 회동 가능한 구조로 접속된 것을 특징으로 한다.The gap adjusting mechanism is connected in a rotatable structure so as to move with a certain amount of play with respect to the rocker arm.

Description

밸브 작동 기구Valve actuator

본 고안은 연소실을 개폐하는 밸브를 작동하는 밸브 작동기구에 관한 것이다.The present invention relates to a valve operating mechanism for operating a valve for opening and closing the combustion chamber.

밸브 작동기구는 각 실린더의 흡ㆍ배기밸브를 점화 순서대로 설계된 시기에 개폐 작용을 하도록 작동하는 기구로서 도 3에 도시하는 것과 같이 로커암(20) 밸브 브릿지(21, 또는 밸브 캡이라함)등을 포함하고 있으며, 이밖에 로커암(20)을 작동하기 위한 캠 기구나 또는 푸쉬로드 기구를 포함하여 구성되어 있다.The valve actuating mechanism is a mechanism which operates to open and close the intake / exhaust valves of each cylinder in the order of ignition order, as shown in FIG. 3, such as the rocker arm 20, the valve bridge 21, or the valve cap 21. In addition, it comprises a cam mechanism or a push rod mechanism for operating the rocker arm (20).

그러나 종래 구조에 의하면 로커암(20)의 단부에 밸브와의 간극 조정을 위한 간극 조정 스크류(22)와 밸브 브릿지(21)사이에 볼 소켓(23)이 개재되어 있고 간극 조정 스크류(22)의 구형팁(24)이 로커암 축(25)에 대하여 원호의 궤적을 가지면서 작동하게 되므로 볼 소켓(23)과의 미끄럼 마찰이 과다하게 작용하여 마모가 심화되고 더욱이 볼 소켓(23)과 밸브 브릿지(21), 밸브 브릿지(21)의 밸브 팁 접촉부(26)와 밸브 스템(27) 사이의 윤활성이 좋지 않아 이상 마모를 보임에 따라 밸브 간극을 자주 조정하게 되는 문제점 및 심하면 소착 현상을 일으키는 일도 있었다.However, according to the conventional structure, a ball socket 23 is interposed between the gap adjusting screw 22 and the valve bridge 21 for adjusting the gap with the valve at the end of the rocker arm 20, and the gap adjusting screw 22 Since the spherical tip 24 is operated while having a circular arc trajectory with respect to the rocker arm shaft 25, the sliding friction with the ball socket 23 is excessively acted to increase wear, and furthermore, the ball socket 23 and the valve bridge (21), the valve tip contact portion 26 and the valve stem (27) of the valve bridge 21 is poor in lubrication, and the abnormality of the valve gap is often adjusted as a result of abnormal wear, and even if the sintering phenomenon may occur. .

이에 본 고안은 상기한 문제점을 감안하여 제안한 것으로서 그의 목적으로 하는 것은The present invention is proposed in view of the above problems, and its purpose is to

접촉 부분에의 윤활을 원활히 하고 마찰력을 감소시켜 내구성을 향상시킨 밸브 작동기구를 제공하는 데 있다.The present invention provides a valve mechanism that facilitates lubrication of contact portions and reduces friction to improve durability.

본 고안은 상기한 목적을 달성하기 위하여The present invention to achieve the above object

간극 조정기구를 갖는 로커암과 밸브 브릿지를 포함하는 밸브 작동기구에 있어서,In a valve actuating mechanism comprising a rocker arm and a valve bridge having a gap adjusting mechanism,

상기 간극 조정기구는 로커암에 대하여 어느 정도 유격을 가지고 움직일 수 있도록 회동 가능한 구조로 접속된 것을 특징으로 한다.The gap adjusting mechanism is connected in a rotatable structure so as to move with a certain amount of play with respect to the rocker arm.

도 1은 본 고안에 의한 밸브 작동기구를 나타내는 정단면도1 is a front sectional view showing a valve operating mechanism according to the present invention

도 2는 본 고안 밸브 작동기구의 A-A 단면도Figure 2 is a cross-sectional view of the A-A valve mechanism of the present invention

도 3은 종래 밸브 작동기구3 is a conventional valve operating mechanism

※ 도면의 주요 부분에 대한 부호의 설명※ Explanation of codes for main parts of drawing

1 : 로커암 2 : 로커암 축1: rocker arm 2: rocker arm axis

3 : 간극 조정기구 4 : 구멍3: clearance adjustment mechanism 4: hole

5 : 힌지축 6 : 스크류지지대5: hinge shaft 6: screw support

7 : 조정너트 8 : 간극 조정 스크류7: adjusting nut 8: clearance adjusting screw

9 : 구형팁 10 : 오일 통로9: spherical tip 10: oil passage

11 : 오일 통로 12 : 밸브 브릿지11: oil passage 12: valve bridge

13 : 구형받이홈 15 : 밸브 팁 접촉부13: spherical gutter groove 15: valve tip contact

이하 본 고안의 구성과 작용과 첨부한 도면을 참조하여 설명한다.Hereinafter, with reference to the configuration and operation of the subject innovation and the accompanying drawings.

도 1에 있어서, 부호 1로 나타내는 로커암(1)은 로커암 축(2)에 좌우로 시이소오 회동가능하게 장착되고 그의 일단에는 간극 조정기구(3)가 마련되어 있다.In Fig. 1, the rocker arm 1 indicated by reference numeral 1 is mounted on the rocker arm shaft 2 so as to be pivotable left and right, and a gap adjusting mechanism 3 is provided at one end thereof.

이 간극 조정기구(3)는 밸브와의 틈새(간극)를 조정하기 위한 것으로서 하광상협한 구멍(4, 정단면하였을 때 사다리꼴, 평단면 형상은 직사각형임)을 통하여 설치되며, 힌지축(5)에 의해 회동가능한 구조로 로커암(1)에 연결되어 로커암(1)에 대하여 구멍(4) 공간내에서 어느 정도 유격을 가지고 움직일 수 있도록 구성되어 있다.The gap adjusting mechanism 3 is for adjusting a gap (gap) with the valve, and is installed through a hole having a lower diameter (4, a trapezoid when the front section is cross-sectional, and a flat cross section is rectangular), and the hinge shaft 5 It is connected to the rocker arm (1) in a rotatable structure by) and is configured to move with some play in the hole (4) space with respect to the rocker arm (1).

이 간극 조정기구(3)는 내경의 일부 또는 전부에 암나사가 형성된 스크류 지지대(6)와, 그 스크류지지대(6)와 나사 체결되어 조정너트(7)에 의해 상하 축방향으로 이동되어 밸브 간극을 조정하는 간극 조정 스크류(8)와, 간극 조정 스크류(8) 하단에 일체로 형성된 구형팁(9) 및 스크류지지대(6)를 로커암(1)에 회동가능하게 지지하는 힌지축(5)으로 구성되어 있다.The clearance adjusting mechanism 3 is screwed with a screw support 6 having a female thread formed in part or all of its inner diameter, and screwed with the screw support 6 to be moved up and down by the adjusting nut 7 to close the valve clearance. The hinge shaft 5 which supports the clearance adjustment screw 8 to adjust, the spherical tip 9 and the screw support 6 which were integrally formed in the clearance adjustment screw 8 lower end with the rocker arm 1 rotatably. Consists of.

그리고 로커암(1)에 형성된 오일 통로(10)를 통해 공급되는 오일이 힌지축(5)을 통해 간극 조정 스크류(8)의 오일 통로(11)를 타고 구형팁(9) 하부로 분출하도록 구성되어 있다.And the oil supplied through the oil passage 10 formed in the rocker arm (1) is configured to eject the oil passage 11 of the clearance adjusting screw (8) through the hinge shaft (5) to the lower spherical tip (9) It is.

상기 구형팁(9)에 접촉하는 밸브 브릿지(12)에는 구형팁(9)의 반지름 보다 큰 구형 받이홈(13)이 형성되어 있으며, 구형 받이홈(13)으로부터 밸브 스템 엔드부(14)가 접촉하는 밸브 팁 접촉부(15)로 오일 통로(16)가 형성되어 있다.The valve bridge 12 in contact with the spherical tip 9 is formed with a spherical receiving groove 13 which is larger than the radius of the spherical tip 9, and the valve stem end portion 14 is formed from the spherical receiving groove 13. An oil passage 16 is formed with the valve tip contact 15 in contact.

이와같은 본 고안의 작용에 대하여 설명하면 다음과 같다.Referring to the operation of the present invention as follows.

로울러부(17)가 캠 또는 푸쉬로드에 의해 밀어올려지면 로커암(1)은 로커암 축(2)을 중심적으로 회동하게 되며, 간극 조정기구(3)는 함께 움직이게 된다.When the roller portion 17 is pushed up by the cam or the push rod, the rocker arm 1 pivots about the rocker arm axis 2, and the clearance adjusting mechanism 3 moves together.

이때 구형팁(9)부가 밸브 브릿지(12)의 구형 받이홈(13)에 밀착하여 내리누르게 되는데 로커암(1)의 회동각이 증가하여도 양측 구형팁(9)과 구형받이홈(13)의 접촉부에서는 미끄러짐이 발생하지 아니하게 된다.At this time, the spherical tip 9 comes into close contact with the spherical receiving groove 13 of the valve bridge 12 and the spherical tip 9 and the spherical receiving groove 13 on both sides even if the rotation angle of the rocker arm 1 increases. Slip does not occur at the contact portion of.

이는 종래와 같이 간극 조정기구(3)가 로커암(1)에 고정되지 아니하고 유격이 허용되기 때문으로서 힌지축(5)을 중심으로 간극 조정기구(3)가 기울어지므로써 선단 접촉부의 궤적이 원호를 그리지 않고 상하 수직으로 움직이게 되는 데 따른 결과이다.This is because the clearance adjustment mechanism 3 is not fixed to the rocker arm 1 and the clearance is allowed as in the prior art, so the clearance adjustment mechanism 3 is inclined around the hinge axis 5 so that the trajectory of the tip contact portion is circular. This is the result of moving up and down vertically without drawing.

한편 오일 통로(10)(11)를 통해 구형 받이홈(13)에 오일이 공급되므로 윤활이 원활하여 마모를 저감하게 되며, 이 구형 받이홈(13)에 공급된 오일은 오일 통로(16)를 통하여 밸브 팁 접촉부(15)에도 공급되므로써 밸브 스템 엔드부(밸브팁부, 14)와의 사이에도 윤활이 가능하여 마찰을 저감하게 되는 것이다.Meanwhile, since oil is supplied to the spherical receiving groove 13 through the oil passages 10 and 11, lubrication is smoothly reduced to reduce wear, and the oil supplied to the spherical receiving groove 13 may be connected to the oil passage 16. By being supplied to the valve tip contact portion 15 through this, lubrication is possible between the valve stem end portion (valve tip portion 14) and friction is reduced.

이상과 같은 본 고안에 의하면 밸브 간극 조정기구를 로커암에 대하여 힌지축을 중심으로 회동 움직임이 가능하게 장착하여 로커암의 회동시 하단의 구형팁이 원호 궤적을 그리지 아니하고 상하 수직 운동을 하도록 하므로써 밸브 브릿지와의 접촉시 미끄러짐이 없어 마모가 방지되며, 밸브 간극 조정기구를 통하여 밸브 브릿지의 구형 받이홈과 밸브 팁 접촉부에도 오일을 공급하여 윤활하게 되므로써 마찰력 감소에 따른 동력 손실 저감과 마모 방지에 의한 내구성이 증대되는 효과가 있으며, 볼소켓을 생략할 수 있어 비용 저감 효과도 있게 된다.According to the present invention as described above, the valve gap adjustment mechanism is mounted to allow the pivoting movement about the hinge axis with respect to the rocker arm so that the spherical tip at the bottom of the rocker arm rotates vertically without drawing the arc of the arc. Wear is prevented because there is no slip when it comes in contact with the oil, and oil is also lubricated through the valve gap adjusting mechanism to the spherical receiving groove of the valve bridge and the valve tip contact portion, thereby reducing power loss and durability by preventing friction. There is an effect to increase, it is possible to omit the ball socket, there is also a cost reduction effect.

Claims (6)

간극 조정기구(3)를 갖는 로커암(1)과 밸브 브릿지(12)를 포함하는 밸브 작동기구에 있어서,In the valve actuating mechanism which comprises the rocker arm 1 and the valve bridge 12 which have the clearance adjustment mechanism 3, 상기 간극 조정기구(3)는 로커암(1)에 대하여 어느 정도 유격을 가지고 움직일 수 있도록 회동 가능한 구조로 접속하되, 로커암(1) 일단에 하광 상협하게 형성된 구멍(4)을 상하로 관통하여 힌지축(5)에 의해 구동가능한 구조로 장착 한 것을 특징으로 하는 밸브 작동기구.The clearance adjusting mechanism 3 is connected to the rotatable structure so as to move with a certain play with respect to the rocker arm 1, but penetrates through the hole 4 formed in the lower end of the rocker arm 1 in a vertical direction. A valve actuating mechanism, characterized in that it is mounted in a structure that can be driven by the hinge shaft (5). 제 1 항에 있어서,The method of claim 1, 상기 간극 조정기구는 암나사가 형성되고 힌지축(5)에 의해 로커암에 회동가능하게 접속하는 스크류지지대(6)와, 그 스크류지지대와 상하로 이동가능하게 나사 체결되는 간극 조정스크류(8)와, 간극 조정스크류를 고정 및 조정하는 조정너트(7)를 포함하는 것을 특징으로 하는 밸브 작동기구.The gap adjusting mechanism includes a screw support 6 having a female screw and rotatably connected to the rocker arm by a hinge shaft 5, and a gap adjusting screw 8 which is screwed to be movable up and down with the screw support. And an adjustment nut (7) for fixing and adjusting the clearance adjusting screw. 제 2 항에 있어서,The method of claim 2, 상기 간극 조정 스크류(8)의 하단은 구형팁(9)이 일체로 형성되어 있는 것을 특징으로 하는 밸브 작동기구.The lower end of the clearance adjusting screw (8) is a valve actuating mechanism, characterized in that the spherical tip (9) is formed integrally. 제 3 항에 있어서,The method of claim 3, wherein 상기 구형팁(9)에 접촉하는 밸브 브릿지에는 그 구형팁보다 큰 크기의 구형받이홈(13)이 형성되어 있는 것을 특징으로 하는 밸브 작동기구.The valve actuating mechanism, characterized in that the valve bridge contacting the spherical tip (9) is formed with a spherical receiving groove (13) of a larger size than the spherical tip. 제 4 항에 있어서,The method of claim 4, wherein 상기 구형받이홈(13)에는 로커암(1)에 형성된 오일 통로(10)를 통하여 공급되는 오일이 상기 간극 조정스크류를 경유하여 공급되는 것을 특징으로 하는 밸브 작동기구.The spherical receiving groove (13) is a valve actuating mechanism characterized in that the oil supplied through the oil passage (10) formed in the rocker arm (1) is supplied via the gap adjusting screw. 제 5 항에 있어서,The method of claim 5, 상기 구형 받이홈(13)에 공급된 오일은 밸브 브릿지(12)에 형성된 오일 통로를 따라 밸브 스템 엔드부(14)와 접촉하는 밸브 팁 접촉부에 공급되는 되는 것을 특징으로 하는 밸브 작동기구.Oil supplied to the spherical receiving groove (13) is supplied to the valve tip contact portion which is in contact with the valve stem end portion (14) along the oil passage formed in the valve bridge (12).
KR2019970039948U 1997-12-23 1997-12-23 Valve operation tool KR200178410Y1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9879575B2 (en) 2016-06-08 2018-01-30 Caterpillar Inc. System for lubricating valve assembly of engine
KR102579391B1 (en) 2022-12-29 2023-09-18 주식회사 스펙엔지니어링와이엔피 System for measuring displacement of structure by rotational angle detection and signal processing, and method for the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9879575B2 (en) 2016-06-08 2018-01-30 Caterpillar Inc. System for lubricating valve assembly of engine
KR102579391B1 (en) 2022-12-29 2023-09-18 주식회사 스펙엔지니어링와이엔피 System for measuring displacement of structure by rotational angle detection and signal processing, and method for the same

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