KR20090049312A - Planetary carrier for planetary gear sets - Google Patents

Planetary carrier for planetary gear sets Download PDF

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Publication number
KR20090049312A
KR20090049312A KR1020070115526A KR20070115526A KR20090049312A KR 20090049312 A KR20090049312 A KR 20090049312A KR 1020070115526 A KR1020070115526 A KR 1020070115526A KR 20070115526 A KR20070115526 A KR 20070115526A KR 20090049312 A KR20090049312 A KR 20090049312A
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KR
South Korea
Prior art keywords
planetary
planetary gear
pin
carrier
gear set
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KR1020070115526A
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Korean (ko)
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최재혁
심휴태
한기정
장우진
백상범
허기수
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현대자동차주식회사
기아자동차주식회사
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Priority to KR1020070115526A priority Critical patent/KR20090049312A/en
Publication of KR20090049312A publication Critical patent/KR20090049312A/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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • 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
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/082—Planet carriers
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • F16H2001/325—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear comprising a carrier with pins guiding at least one orbital gear with circular holes

Abstract

본 발명은 유성 캐리어에 형성된 핀 홀 중에, 인너 피니언 샤프트용 핀이 장착되는 핀 홀의 주위에 단차홈을 형성함으로써, 단차홈의 깊이 만큼 핀의 길이를 줄이며, 나아가 타기종의 유성기어셋트에 사용되는 핀을 공용화하여 사용할 수 있도록 하는 유성기어셋트용 유성 캐리어를 제공한다.The present invention reduces the length of the pin by the depth of the stepped groove by forming a stepped groove around the pin hole in which the pin for the inner pinion shaft is mounted among the pin holes formed in the planetary carrier, and is also used for other types of planetary gear sets. It provides a planetary carrier for a planetary gearset that allows pins to be used in common.

자동변속기, 유성기어셋트, 유성 캐리어, 아웃터 피니언 샤프트, 인너 피니언 샤프트, 핀 Automatic transmission, Planetary gear set, Planetary carrier, Outer pinion shaft, Inner pinion shaft, Pin

Description

유성기어셋트용 유성 캐리어{PLANETARY CARRIER FOR PLANETARY GEAR SETS}Planetary carrier for planetary gear set {PLANETARY CARRIER FOR PLANETARY GEAR SETS}

본 발명은 유성기어셋트용 유성 캐리어에 관한 것으로서, 보다 상세하게는 유성 캐리어에 형성된 핀 홀 중에, 인너 피니언 샤프트용 핀이 장착되는 핀 홀의 주위에 단차홈을 형성함으로써, 단차홈의 깊이 만큼 핀의 길이를 줄이며, 나아가 타기종의 유성기어셋트에 사용되는 핀을 공용화하여 사용할 수 있도록 하는 유성기어셋트용 유성 캐리어에 관한 것이다.The present invention relates to a planetary carrier for a planetary gear set, and more particularly, by forming a stepped groove around a pin hole to which an inner pinion shaft pin is mounted in a pin hole formed in the planetary carrier, The present invention relates to a planetary carrier for a planetary gear set, which reduces the length and further allows the pins used in other planetary gear sets to be used in common.

일반적으로 유성기어셋트는 토크 컨버터의 토크 변환 능력을 보조하며, 또한 후진 조작을 하기 위한 장치로서, 변속기 케이스의 내부에서 토크 컨버터의 후방에 구성되며, 선기어와 링기어 사이에 6개 또는 3개의 유성기어를 유성 캐리어로 연결하여 구성된다.In general, a planetary gear set assists the torque converter's torque converting capability and is a device for reversing operation. The planetary gear set is configured at the rear of the torque converter inside the transmission case, and has six or three planets between the sun gear and the ring gear. It is composed by connecting a gear to a planetary carrier.

이러한 유성기어셋트는 다수개의 클러치와 브레이크의 조합으로 자동 변속기의 파워 트레인을 이루게 된다.This planetary gear set is a combination of a plurality of clutches and brakes to form the power train of the automatic transmission.

특히, 더블 피니언 유성기어셋트에서, 유성 캐리어(101) 상에는, 도 1에서 도시한 바와 같이, 인너 피니언 샤프트(103)와 아웃터 피니언 샤프트(105)가 각각 핀(107)을 통하여 고정 장착된다.In particular, in the double pinion planetary gear set, on the planet carrier 101, the inner pinion shaft 103 and the outer pinion shaft 105 are fixedly mounted via the pins 107, respectively, as shown in FIG.

여기서, 상기 각 핀(107)은 장착기구를 통하여 장착되며, 그 길이는 일정한 규격을 갖는다.Here, each pin 107 is mounted through a mounting mechanism, the length of which has a certain standard.

그러나 종래 기술에 따른 더블 피니언 유성기어셋트의 상기 인너 피니언 샤프트(103)와 상기 아웃터 피니언 샤프트(105)는 그 유성 캐리어(101)의 내부에 위치되어 반경방향으로 일정간격 떨어진 위치에서 유성 캐리어에 장착되기 때문에, 상기 인너 피니언 샤프트(103)와 상기 아웃터 피니언 샤프트(105)를 유성 캐리어에 충분히 연결할 수 있도록 핀의 길이를 충분히 확보해야 하며, 이로 인해, 상기 아웃터 피니언 샤프트(105)에 대해서는 상기 핀(107)의 길이가 필요 이상으로 길어지게 되며, 이에 따른 제작원가가 상승하는 단점이 있다.However, the inner pinion shaft 103 and the outer pinion shaft 105 of the double pinion planetary gear set according to the prior art are located inside the planet carrier 101 and are mounted on the planet carrier at positions spaced apart from each other in the radial direction. In order to sufficiently connect the inner pinion shaft 103 and the outer pinion shaft 105 to the planetary carrier, the length of the pin must be sufficiently secured. The length of the 107 is longer than necessary, resulting in an increase in manufacturing cost.

따라서, 본 발명은 상기한 바와 같은 단점을 해소하기 위하여 발명된 것으로, 본 발명의 목적은 유성 캐리어에 형성된 핀 홀 중에, 인너 피니언 샤프트용 핀이 장착되는 핀 홀의 주위에 단차홈을 형성함으로써, 단차홈의 깊이 만큼 핀의 길이를 줄이며, 나아가 타기종의 유성기어셋트에 사용되는 핀을 공용화하여 사용할 수 있도록 하는 유성기어셋트용 유성 캐리어를 제공하는 것이다.Accordingly, the present invention has been invented to solve the above disadvantages, and an object of the present invention is to form a stepped groove around a pin hole in which an inner pinion shaft pin is mounted, among the pin holes formed in the planetary carrier. It is to provide a planetary carrier for the planetary gear set to reduce the length of the pin by the depth of the groove, and further to share the pin used in the other planetary gear set of the other types.

이러한 목적을 달성하기 위한 본 발명의 실시예에 따른 유성기어셋트용 유성 캐리어는 유성기어셋트용 유성 캐리어에 있어서, 더블 피니언 유성기어셋트의 유성 캐리어의 외주면을 따라서 형성되는 다수개의 핀 홀 중에, 인너 피니언 샤프트용 핀이 장착되는 각 핀 홀의 주위에는 단차홈을 형성하여 이루어지는 것을 특징으로 한다.The planetary carrier for the planetary gear set according to the embodiment of the present invention for achieving this object is an inner carrier of the plurality of pin holes formed along the outer circumferential surface of the planetary carrier of the double pinion planetary gearset, the inner It is characterized by forming a stepped groove around each pin hole on which the pinion shaft pin is mounted.

상기 단차홈은 그 형상이 반원형으로 형성되는 것을 특징으로 한다.The stepped groove is characterized in that the shape is formed in a semicircular shape.

상술한 바와 같이 본 발명에 따른 유성기어셋트용 유성 캐리어에 의하면, 유성 캐리어에 형성된 핀 홀 중에, 인너 피니언 샤프트용 핀이 장착되는 핀 홀의 주위에 단차홈을 형성하여 상기 단차홈의 깊이 만큼 핀의 길이를 줄이고, 이로 인해 타기종의 유성기어셋트에 사용되는 핀을 공용화하여 사용할 수 있도록 함으로써, 전체적인 유성기어셋트의 제작원가를 절감하는 효과가 있다.According to the planetary carrier for the planetary gear set according to the present invention as described above, in the pinhole formed in the planetary carrier, a stepped groove is formed around the pinhole on which the pin for the inner pinion shaft is mounted, so that the depth of the pin is equal to the depth of the stepped groove. By reducing the length, and thereby allowing the pins used in other types of planetary gear sets to be used in common, there is an effect of reducing the overall manufacturing cost of the planetary gear set.

이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 상세하게 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail as follows.

이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

도 2는 본 발명의 실시예에 따른 유성기어셋트용 유성 캐리어가 적용된 유성기어셋트의 사시도이고, 도 3은 본 발명의 실시예에 따른 유성기어셋트용 유성 캐 리어가 적용된 자동변속기의 부분 단면도이다.2 is a perspective view of a planetary gearset to which a planetary carrier for a planetary gearset according to an embodiment of the present invention is applied, and FIG. 3 is a partial cross-sectional view of an automatic transmission to which a planetary carrier for a planetary gearset according to an embodiment of the present invention is applied. .

본 발명의 실시예에 따른 유성기어셋트용 유성 캐리어는, 도 1에서 도시한 바와 같이, 더블 피니언 유성기어셋트의 유성 캐리어(1) 외주면을 따라서는 다수개의 핀 홀(3)이 형성된다.In the planetary carrier for the planetary gear set according to the embodiment of the present invention, as shown in FIG. 1, a plurality of pinholes 3 are formed along the outer circumferential surface of the planetary carrier 1 of the double pinion planetary gearset.

상기 각 핀 홀(3)중에, 인너 피니언 샤프트용 핀(5)이 장착되는 각 핀 홀(3)의 주위에는 단차홈(7)이 형성된다.A step groove 7 is formed around each of the pin holes 3 to which the pin 5 for the inner pinion shaft is mounted.

여기서, 상기 단차홈(7)은 그 형상이 반원형으로 형성된다.Here, the stepped groove 7 is formed in a semicircular shape.

따라서 상기와 같이 형성되는 본 발명의 유성기어셋트용 유성 캐리어(1)를 적용하면, 도 2에서 도시한 바와 같이, 상기 단차홈(7)의 깊이(L) 만큼 상기 핀(5)의 길이를 줄여도, 인너 피니언 샤프트(9)를 상기 유성 캐리어(1)에 안정적으로 장착할 수 있게 된다.Accordingly, when the planetary carrier set 1 for the planetary gear set according to the present invention is formed as described above, as shown in FIG. 2, the length of the pin 5 is increased by the depth L of the stepped groove 7. Even if it reduces, the inner pinion shaft 9 can be mounted to the said planetary carrier 1 stably.

또한, 상기 인너 피니언 샤프트(9)와 아웃터 피니언 샤프트(11)는 같은 규격을 갖는 상기 핀(5)을 통하여 상기 유성 캐리어(1)에 장착되기 때문에 상기 핀(5)의 길이를 축소하여 적용하게 되면, 타기종의 유성기어셋트에 사용되는 핀을 공용화하여 사용할 수 있게 된다.In addition, since the inner pinion shaft 9 and the outer pinion shaft 11 are mounted to the planet carrier 1 through the pin 5 having the same size, the length of the pin 5 is reduced and applied. If it is, the pins used in other planetary gear sets can be shared.

이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술 분야에서 통상의 지식을 가진자에 의해 본 발명의 기술 사상과 아래에 기재될 특허청구범위의 균등범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this and is given by the person of ordinary skill in the art to the following, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

도 1은 종래 기술에 따른 유성기어셋트용 유성 캐리어가 적용된 자동변속기의 부분 단면도이다.1 is a partial cross-sectional view of an automatic transmission to which a planetary carrier for a planetary gear set according to the prior art is applied.

도 2는 본 발명의 실시예에 따른 유성기어셋트용 유성 캐리어가 적용된 유성기어셋트의 사시도이다.2 is a perspective view of a planetary gear set to which a planetary carrier for a planetary gear set according to an exemplary embodiment of the present invention is applied.

도 3은 본 발명의 실시예에 따른 유성기어셋트용 유성 캐리어가 적용된 자동변속기의 부분 단면도이다.3 is a partial cross-sectional view of an automatic transmission to which a planetary carrier for a planetary gear set according to an embodiment of the present invention is applied.

Claims (2)

유성기어셋트용 유성 캐리어에 있어서, In the planetary carrier for the planetary gear set, 더블 피니언 유성기어셋트의 유성 캐리어의 외주면을 따라서 형성되는 다수개의 핀 홀 중에, 인너 피니언 샤프트용 핀이 장착되는 각 핀 홀의 주위에는 단차홈을 형성하여 이루어지는 것을 특징으로 하는 유성기어셋트용 유성 캐리어.A planetary carrier for a planetary gear set comprising a stepped groove formed around each of the pin holes on which an inner pinion shaft pin is mounted, among a plurality of pin holes formed along the outer circumferential surface of the planet carrier of a double pinion planetary gear set. 제1항에 있어서,The method of claim 1, 상기 단차홈은The step groove 그 형상이 반원형으로 형성되는 것을 특징으로 하는 유성기어셋트용 유성 캐리어.The planet carrier for planetary gear sets, characterized in that the shape is formed in a semicircle.
KR1020070115526A 2007-11-13 2007-11-13 Planetary carrier for planetary gear sets KR20090049312A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101302722B1 (en) * 2011-07-06 2013-09-03 한라스택폴 주식회사 Planet Carrier for Auto Transmission
CN110159710A (en) * 2019-07-03 2019-08-23 浙江大学昆山创新中心 A kind of floating planet gear architecture for Miniature precision planetary reducer
US11236805B2 (en) 2019-10-25 2022-02-01 Hyundai Transys Inc. Planetary gear apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101302722B1 (en) * 2011-07-06 2013-09-03 한라스택폴 주식회사 Planet Carrier for Auto Transmission
CN110159710A (en) * 2019-07-03 2019-08-23 浙江大学昆山创新中心 A kind of floating planet gear architecture for Miniature precision planetary reducer
US11236805B2 (en) 2019-10-25 2022-02-01 Hyundai Transys Inc. Planetary gear apparatus

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