KR100792932B1 - Transmission lubrication device - Google Patents

Transmission lubrication device Download PDF

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Publication number
KR100792932B1
KR100792932B1 KR1020060066809A KR20060066809A KR100792932B1 KR 100792932 B1 KR100792932 B1 KR 100792932B1 KR 1020060066809 A KR1020060066809 A KR 1020060066809A KR 20060066809 A KR20060066809 A KR 20060066809A KR 100792932 B1 KR100792932 B1 KR 100792932B1
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South Korea
Prior art keywords
shift fork
oil
center
synchronizer ring
viewed
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KR1020060066809A
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Korean (ko)
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이경우
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현대자동차주식회사
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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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/32—Gear shift yokes, e.g. shift forks
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0432—Lubricant guiding means on or inside shift rods or shift forks

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • General Details Of Gearings (AREA)

Abstract

A manual transmission lubricating device is provided to control a synchronizing process of a synchronizer ring by preventing oil from being supplied to the synchronizer ring during a synchronizing process. A manual transmission lubricating device includes an oil guiding portion(3) at an upper center of an arc-like shift fork(1). A lower portion of the shift fork is opened downwards. The oil guiding portion is slanted downwards from both sides to a center thereof in a front portion of the shift fork. The oil guiding portion includes a concave portion having a down-slanted cross-section along a moving direction of a sleeve, from viewpoint of a side portion of the shift fork.

Description

수동변속기 윤활장치{transmission lubrication device}Manual transmission lubrication device

도 1은 본 발명에 따른 수동변속기 윤활장치를 도시한 사시도,1 is a perspective view showing a manual transmission lubricator according to the present invention,

도 2는 도 1의 정면도,2 is a front view of FIG. 1,

도 3은 도 1의 쉬프트포크의 측단면을 포함한 작동상태도로서 평상시의 상태도,3 is an operating state diagram including a side cross-section of the shift fork of FIG.

도 4는 도 1의 쉬프트포크의 측단면을 포함한 작동상태도로서 동기작동시의 상태도이다.4 is an operational state diagram including the side cross-section of the shift fork of FIG.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

1; 쉬프트포크 One; Shiftfork

3; 오일유도부3; Oil Induction Department

5; 슬리브 5; sleeve

7; 싱크로나이저링7; Synchronizing

본 발명은 수동변속기 윤활장치에 관한 것으로서, 보다 상세하게는 레버식 쉬프트포크를 채용한 수동변속기의 윤활장치에 관한 기술이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual transmission lubrication device, and more particularly, to a technique for a lubrication device of a manual transmission employing a lever shift fork.

레버식 쉬프트포크는 쉬프트레일이 움직이면 케이스에 고정된 힌지축을 중심으로 쉬프트포크가 회동하면서 쉬프트포크에 회전가능하게 설치된 패드가 슬리브를 밀어 변속이 이루어지도록 되어 있다.The lever-type shift fork is configured such that when the shift rail moves, the pad rotates around the hinge shaft fixed to the case and the pad rotatably installed on the shift fork pushes the sleeve to shift.

상기 슬리브가 이동되면 키이가 싱크로나이저링을 클러치기어쪽으로 밀착시키면서 동기작용이 일어나는데, 이 동기작용이 일어나는 동안에는 싱크로나이저링의 마찰계수 확보를 위해 싱크로나이저링에서 오일이 제거되는 것이 바람직하며, 동기작용이 일어나지 않는 평상시에는 싱크로나이저링 및 그 주위 부품에 원활한 오일공급으로 마찰을 저감하는 것이 바람직하다.When the sleeve is moved, the key is brought into close contact with the synchronizer ring toward the clutch gear. During this time, the oil is preferably removed from the synchronizer ring to secure the friction coefficient of the synchronizer ring. In this case, it is desirable to reduce friction by smooth oil supply to the synchronizer ring and the surrounding parts.

본 발명은 레버식 쉬프트포크를 채용한 수동변속기에서 동기작용이 이루어지지 않는 평상시에는 싱크로나이저링으로 오일이 원활하게 공급되어 싱크로나이저링 및 주변 부품의 윤활을 촉진할 수 있도록 함과 아울러 동기작용이 이루어지는 동안에는 싱크로나이저링으로 공급되던 오일이 제한되도록 함으로써, 싱크로나이저링의 원활한 동기작용을 확보할 수 있도록 한 수동변속기 윤활장치를 제공함에 그 목적이 있다.In the present invention, when the manual transmission adopting the lever shift fork is not normally synchronized, the oil is smoothly supplied to the synchronizer ring to facilitate the lubrication of the synchronizer and the peripheral parts, and the synchronizing action is also achieved. It is an object of the present invention to provide a manual transmission lubrication device to ensure a smooth synchronization of the synchronizer ring by limiting the oil supplied to the synchronizer ring during the operation.

상기한 바와 같은 목적을 달성하기 위한 본 발명 수동변속기 윤활장치는 The manual transmission lubrication device of the present invention for achieving the above object is

하측으로 개방된 원호형 쉬프트포크의 중앙 상부에 오일유도부가 구비되되;An oil induction part is provided at the center upper portion of the arc-shaped shift fork opened downward;

상기 오일유도부는 쉬프트포크의 정면에서 볼 때, 양측으로부터 중앙으로 하향경사지고, 쉬프트포크의 측면에서 볼 때, 변속시 슬리브가 이동하는 방향을 따 라서 하향 경사진 단면형상을 가진 함몰부로 이루어진 것을 특징으로 한다.The oil induction part is inclined downward from both sides to the center when viewed from the front of the shift fork, and when viewed from the side of the shift fork, the oil induction part has a depression having a cross-sectional shape inclined downward along the direction in which the sleeve moves. It is done.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 1 내지 도 4를 참조하면, 본 발명 실시예는 하측으로 개방된 원호형 쉬프트포크(1)의 중앙 상부에 본 발명의 기술적 특징인 오일유도부(3)가 구비된 구성으로서, 상기 쉬프트포크(1)는 레버식 쉬프트포크이다. 참고로, 도면 중의 화살표는 오일의 흐름을 표현하고 있다.1 to 4, an embodiment of the present invention is a configuration in which an oil induction part 3, which is a technical feature of the present invention, is provided at a center upper portion of an arc-shaped shift fork 1 which is opened downward, and the shift fork ( 1) is a lever shift fork. For reference, the arrow in the figure represents the flow of oil.

상기 오일유도부(3)는 도 2와 같이 쉬프트포크(1)의 정면에서 볼 때, 양측으로부터 중앙으로 하향경사지고, 도 3과 같이 쉬프트포크(1)의 측면에서 볼 때, 변속시 슬리브(5)가 이동하는 방향을 따라서 하향 경사진 단면형상을 가진 함몰부로 이루어져 있다.The oil induction part 3 is inclined downward from both sides to the center when viewed from the front of the shift fork 1 as shown in FIG. 2, and when shifting the sleeve 5 when viewed from the side of the shift fork 1 as shown in FIG. 3. It is composed of a depression having a cross-sectional shape inclined downward along the direction of travel.

즉, 쉬프트포크(1)의 중앙 상부에 오일을 모아서 싱크로나이저링(7) 쪽으로 흐르게 유도하는 함몰부를 형성한 것이다.That is, a depression is formed in the upper portion of the center of the shift fork 1 to collect oil and guide the flow toward the synchronizer ring 7.

본 실시예에서 상기 오일유도부(3)를 쉬프트포크(1)의 정면에서 볼 때, 양측으로부터 중앙으로 하향경사진 형상은, 상기 쉬프트포크(1)가 이루는 원호의 중심점을 지나는 선상에 중심을 가지고 상측을 향해 개방된 원호형 홈의 형상으로 이루어져 있다.In this embodiment, when the oil induction part 3 is viewed from the front of the shift fork 1, the shape inclined downward from both sides to the center has a center on a line passing through the center point of the arc formed by the shift fork 1. It consists of the shape of the arc-shaped groove opened toward the upper side.

한편, 상기 쉬프트포크(1)의 측면에서 볼 때, 변속시 슬리브(5)가 이동하는 방향을 따라서 하향 경사진 단면형상은, 상기 쉬프트포크(1)가 쉬프트레일에 의해 회동되어 슬리브(5)를 이동시킬 때, 상기 하향 경사진 단면형상이 적어도 수평상태 이상으로 회동되는 기울기를 가지고 있다.On the other hand, when viewed from the side of the shift fork 1, the cross-sectional shape inclined downward along the direction in which the sleeve 5 moves during shifting, the shift fork 1 is rotated by the shift rail and the sleeve 5 When moving, the downwardly inclined cross section has an inclination which rotates at least horizontally.

상기한 바와 같이 구성된 본 발명 수동변속기 윤활장치는 도 3과 같이 동기작동이 이루어지는 경우가 아닌 평상시에는 상기 오일유도부(3)에 의해 오일이 싱크로나이저링(7)과 그 주변의 부품으로 유도되어, 싱크로나이저링(7) 및 그 주변 부품들의 원활한 윤활을 도모하도록 되어 있다.In the manual transmission lubrication device of the present invention configured as described above, the oil is guided to the synchronizer ring 7 and its peripheral parts by the oil induction part 3 at normal times, not in the case of synchronous operation as shown in FIG. It is intended to smoothly lubricate the synchronizer ring 7 and its peripheral parts.

즉, 변속기케이스 내에 비산되는 오일 중 일부가 상기 쉬프트포크(1)의 상부에서 상기 오일유도부(3)로 흘러 들게 되고, 이렇게 오일유도부(3)로 흘러든 오일은 쉬프트포크(1)의 상부 중앙으로 모여서 하측으로 자유낙하하여 도 3과 같이 싱크로나이저링(7) 쪽으로 집중적으로 공급되도록 한 것이다.That is, some of the oil scattered in the transmission case flows from the upper portion of the shift fork 1 to the oil induction portion 3, and thus the oil flowing into the oil induction portion 3 is the upper center of the shift fork 1. As a result, they are freely dropped downward and concentrated to be supplied toward the synchronizer ring 7 as shown in FIG. 3.

반면, 변속작동에 의해 싱크로나이저링(7)이 동기작용을 해야 하는 경우에는 도 4에 도시된 바와 같이, 쉬프트포크(1)가 회동된 상태에서는 상기 오일유도부(3)로 흘러든 오일이 싱크로나이저링(7) 쪽으로 자유낙하하는 것이 방지되도록 함으로써, 싱크로나이저링(7)의 마찰계수 증가를 위한 오일 와이핑(oil wiping) 작용이 원활하게 이루어질 수 있도록 한다.On the other hand, when the synchronizer ring 7 needs to be synchronized by the shifting operation, as shown in FIG. 4, the oil flowing into the oil induction part 3 is synchronized with the shift fork 1 as shown in FIG. 4. By preventing free fall to the aging ring (7), the oil wiping action for increasing the friction coefficient of the synchronizer ring (7) can be made smoothly.

상기 오일 와이핑이란 싱크로나이저링(7)의 마찰계수 확보를 위하여 싱크로나이저링(7) 내부의 홈을 이용하여 오일을 외부로 긁어내는 것을 말한다.The oil wiping refers to scraping oil to the outside using grooves inside the synchronizer ring 7 in order to secure a coefficient of friction of the synchronizer ring 7.

따라서, 동기작동시에 싱크로나이저링(7)과 클러치기어 사이의 마찰력이 충분히 확보되어 원활한 동기작동으로 부드러운 변속이 이루어지도록 하게 된다.Therefore, the frictional force between the synchronizer ring 7 and the clutch gear is sufficiently secured at the time of synchronous operation so that smooth shifting is achieved by smooth synchronous operation.

이상과 같이 본 발명에 의하면, 레버식 쉬프트포크를 채용한 수동변속기에 서 동기작용이 이루어지지 않는 평상시에는 싱크로나이저링으로 오일이 원활하게 공급되어 싱크로나이저링 및 주변 부품의 윤활을 촉진할 수 있도록 함과 아울러 동기작용이 이루어지는 동안에는 싱크로나이저링으로 공급되던 오일이 제한되도록 함으로써, 싱크로나이저링의 원활한 동기작용을 확보할 수 있도록 한다.As described above, according to the present invention, the oil is smoothly supplied by the synchronizer ring in the case of the manual transmission adopting the lever-type shift fork so as to facilitate the lubrication of the synchronizer ring and the peripheral parts. In addition, since the oil supplied to the synchronizer ring is restricted while the synchronization is performed, the smooth synchronization of the synchronizer ring can be ensured.

Claims (3)

하측으로 개방된 원호형 쉬프트포크(1)의 중앙 상부에 오일유도부(3)가 구비되되;An oil induction part 3 is provided at the center upper portion of the arc-shaped shift fork 1 opened downward; 상기 오일유도부(3)는 쉬프트포크(1)의 정면에서 볼 때, 양측으로부터 중앙으로 하향경사지고, 쉬프트포크(1)의 측면에서 볼 때, 변속시 슬리브(5)가 이동하는 방향을 따라서 하향 경사진 단면형상을 가진 함몰부로 이루어진 것을 특징으로 하는 수동변속기 윤활장치.The oil induction part 3 is inclined downward from both sides to the center when viewed from the front side of the shift fork 1, and is lowered along the moving direction of the sleeve 5 when shifting when viewed from the side of the shift fork 1. Manual transmission lubrication device, characterized in that consisting of a depression having an inclined cross-sectional shape. 청구항 1에 있어서,The method according to claim 1, 상기 오일유도부(3)를 쉬프트포크(1)의 정면에서 볼 때, 양측으로부터 중앙으로 하향경사진 형상은, 상기 쉬프트포크(1)가 이루는 원호의 중심점을 지나는 선상에 중심을 가지고 상측을 향해 개방된 원호형 홈의 형상으로 이루어진 것을 특징으로 하는 수동변속기 윤활장치.When the oil guide portion 3 is viewed from the front of the shift fork 1, the shape inclined downward from both sides to the center is open toward the upper side with the center on the line passing through the center point of the arc formed by the shift fork 1. Manual transmission lubrication device, characterized in that made in the shape of a circular arc groove. 청구항 1에 있어서, 상기 쉬프트포크(1)의 측면에서 볼 때, 변속시 슬리브(5)가 이동하는 방향을 따라서 하향 경사진 단면형상은, 상기 쉬프트포크(1)가 쉬프트레일에 의해 회동되어 슬리브(5)를 이동시킬 때, 상기 하향 경사진 단면형상이 적어도 수평상태 이상으로 회동되는 기울기를 가진 것을 특징으로 하는 수동변속기 윤활장치.The cross-sectional shape inclined downward along the direction in which the sleeve 5 moves when shifting, as viewed from the side of the shift fork 1, wherein the shift fork 1 is rotated by the shift rail so that the sleeve And (5), wherein the downwardly inclined cross-sectional shape has an inclination which is rotated at least horizontally.
KR1020060066809A 2006-07-18 2006-07-18 Transmission lubrication device KR100792932B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2407693A1 (en) * 2010-07-16 2012-01-18 Aichi Machine Industry Co. Ltd. Transmission shift fork
KR20230079810A (en) * 2021-11-29 2023-06-07 현대트랜시스 주식회사 Shift fork of transmission for vehicles

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Publication number Priority date Publication date Assignee Title
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JPH0647172Y2 (en) * 1989-09-26 1994-11-30 ダイハツ工業株式会社 Transmission shift fork lubrication structure
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EP2407693A1 (en) * 2010-07-16 2012-01-18 Aichi Machine Industry Co. Ltd. Transmission shift fork
CN102338218A (en) * 2010-07-16 2012-02-01 爱知机械工业株式会社 Transmission shift fork and transmission with same
US8776631B2 (en) 2010-07-16 2014-07-15 Aichi Machine Industry Co., Ltd. Transmission shift fork
CN102338218B (en) * 2010-07-16 2014-09-17 爱知机械工业株式会社 Transmission shift fork and transmission with same
KR20230079810A (en) * 2021-11-29 2023-06-07 현대트랜시스 주식회사 Shift fork of transmission for vehicles
KR102554002B1 (en) * 2021-11-29 2023-07-10 현대트랜시스 주식회사 Shift fork of transmission for vehicles

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