KR20120070146A - Double helical planetary gear - Google Patents

Double helical planetary gear Download PDF

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KR20120070146A
KR20120070146A KR1020100131580A KR20100131580A KR20120070146A KR 20120070146 A KR20120070146 A KR 20120070146A KR 1020100131580 A KR1020100131580 A KR 1020100131580A KR 20100131580 A KR20100131580 A KR 20100131580A KR 20120070146 A KR20120070146 A KR 20120070146A
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South Korea
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helical
gear
helical ring
gears
planetary gear
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KR1020100131580A
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Korean (ko)
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KR101265095B1 (en
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한상섭
조석인
김형윤
노우진
이상언
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두산중공업 주식회사
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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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/68—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion in which an orbital gear has an axis crossing the main axis of the gearing and has helical teeth or is a worm
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Gears, Cams (AREA)

Abstract

PURPOSE: A double helical planetary gear is provided to steadily decelerate by reducing load of an axial direction and load of a radial direction actuating to each helical ring gear and to reduce distortion of the axial direction. CONSTITUTION: A pair of helical ring gears(130) is installed inside a sleeve. A helical sun gear(110) is installed at the center of the pair of helical ring gears. An extension unit is installed in the inner side of the pair of helical ring gears. A spur connection gear is formed on the outer circumference of the helical ring gear. A plurality of helical planetary gears(120) is installed between the helical sun gear and each helical ring gear. Torque of the helical sun gear is transferred to the pair of helical ring gears through the plurality of helical planetary gears. Torque of the pair of helical ring gears is transferred to the sleeve through the spur connection gear.

Description

더블 헬리컬 유성기어 {Double Helical Planetary Gear}Double Helical Planetary Gear

본 발명은 슬리브의 내부에 한 쌍의 헬리컬 링기어가 설치되는 더블 헬리컬 유성기어에 관한 것으로, 더 자세하게는 양 헬리컬 링기어의 내측에 연장부를 형성하고, 양 헬리컬 링기어의 연장부가 서로 면접되도록 하여 축방향 하중을 상쇄할 수 있도록 한 것에 관한 것이다.The present invention relates to a double helical planetary gear in which a pair of helical ring gears are installed in a sleeve, and more specifically, an extension part is formed inside both helical ring gears, and the extensions of both helical ring gears are interviewed with each other. It relates to making it possible to cancel the axial load.

일반적으로 유성기어(Planetary Gear)는 링기어(Ring Gear)와; 링기어의 중심에 설치되는 선기어(Sun Gear)와; 상기 링기어와 선기어 사이에 설치되는 다수의 위성기어(Planet Gear)로 이루어지며, 선기어의 회전력을 다수의 위성기어를 통해 링기어로 전달하는 과정에서 안정적인 감속을 수행하게 된다.In general, planetary gears include ring gears; A sun gear installed at the center of the ring gear; It is composed of a plurality of satellite gear (Planet Gear) is installed between the ring gear and the sun gear, the stable deceleration is performed in the process of transmitting the rotational force of the sun gear through the plurality of satellite gears.

본 발명이 관계하는 더블 헬리컬 유성기어는 슬리브의 내부에 한 쌍의 헬리컬 링기어가 설치된 것이며, 이러한 더블 헬리컬 유성기어는 가스터빈 엔진과 발전기 사이에서 감속기 역할을 하는 기어박스 등에 주로 적용된다.In the double helical planetary gear according to the present invention, a pair of helical ring gears are installed inside the sleeve, and the double helical planetary gear is mainly applied to a gearbox that serves as a reducer between a gas turbine engine and a generator.

도 1에는 종래의 더블 헬리컬 유성기어의 개략도가 도시되어 있다.1 shows a schematic diagram of a conventional double helical planetary gear.

도 1과 같이 종래의 더블 헬리컬 유성기어(200)는 한 쌍의 헬리컬 링기어(230)가 이격되어 설치되고, 각 헬리컬 링기어(230)의 외주 중앙에 슬리브(240)와의 접속을 위한 헬리컬 접속기어(231)가 마련된 형태로 되어 있었다.As shown in FIG. 1, the conventional double helical planetary gear 200 is provided with a pair of helical ring gears 230 spaced apart from each other, and a helical connection for connection with the sleeve 240 at the outer circumference center of each helical ring gear 230. The gear 231 was provided.

상기 종래의 더블 헬리컬 유성기어(200)는 헬리컬 링기어(230)가 서로 독립적으로 작용하기 때문에 축방향 하중으로부터 나오는 뒤틀림(Distortion)에 의해 내구성 및 운전성이 저하되는 문제가 있었다.Since the helical ring gear 230 acts independently of each other, the conventional double helical planetary gear 200 has a problem of deterioration in durability and operability due to distortion resulting from an axial load.

상기 뒤틀림(Distortion)은 모든 구조물에서와 마찬가지로 제품의 내구성 및 운전성 측면에서 많은 문제를 야기시키며, 이러한 문제로 인하여 헬리컬 링기어의 크기 증가, 헬리컬 각도의 제한, 하중 발란스를 위한 추가 구성품, 기어 설계시 리드 콜렉션(LEAD CORRECTION) 크기 증가 및 예측의 어려움 등이 발생하게 된다.The distortion causes many problems in terms of durability and operability of the product as in all structures, and due to these problems, the size of the helical ring gear is increased, the helical angle is limited, additional components for load balancing, and the gear design Increasing the size of lead collection (LEAD CORRECTION) and difficult to predict.

도 1의 종래의 더블 헬리컬 유성기어(200)는 헬리컬 링기어(230)의 외주에 마련되는 헬리컬 접속기어(231)의 방향을 헬리컬 링기어(230)의 방향과 역방향으로 함으로써 축방향 모멘트(Moment)를 잡아주도록 하고 있으나 더블 헬리컬 기어는 설계 측면에서 뿐 만 아니라 제작성 측면에서도 매우 높은 정밀도를 요구하는 제품이기 때문에 가급적 설계를 단순화할 필요가 있게 된다.In the conventional double helical planetary gear 200 of FIG. 1, the axial moment is reversed by making the direction of the helical connecting gear 231 provided on the outer circumference of the helical ring gear 230 reverse to the direction of the helical ring gear 230. The double helical gear requires very high precision not only in terms of design but also in terms of manufacturability. Therefore, it is necessary to simplify the design as much as possible.

본 발명은 상기와 같은 종래의 실정을 감안하여 안출한 것이며, 그 목적이 슬리브의 내부에 한 쌍의 헬리컬 링기어가 설치되는 더블 헬리컬 유성기어를 구성함에 있어서 축방향의 뒤틀림(Distortion)을 저감할 수 있도록 하여 보다 안정적인 감속을 도모할 수 있도록 함은 물론 간편하게 제작할 수 있도록 하는 더블 헬리컬 유성기어를 제공하는 데에 있는 것이다.The present invention has been devised in view of the above-described conventional situation, and an object thereof is to reduce axial distortion in forming a double helical planetary gear in which a pair of helical ring gears are installed in the sleeve. It is to provide a double helical planetary gear that can be easily manufactured as well as making it possible to achieve a more stable deceleration.

상기의 목적을 달성하기 위한 본 발명의 더블 헬리컬 유성기어는 양 헬리컬 링기어의 내측에 연장부를 마련하여 양 헬리컬 링기어의 내측단을 서로 접촉시키는 것 등을 특징으로 한다.The double helical planetary gear of the present invention for achieving the above object is characterized in that the inner end of both helical ring gears and the like by providing an extension in the inner side of both helical ring gears.

즉, 본 발명은 슬리브의 내부에 한 쌍의 헬리컬 링기어가 설치되고, 양 헬리컬 링기어의 중심에 헬리컬 선기어가 설치되며, 헬리컬 선기어와 각 헬리컬 링기어의 사이에 다수의 헬리컬 위성기어가 설치되는 더블 헬리컬 유성기어를 구성함에 있어서, 상기 양 헬리컬 링기어의 내측에 연장부를 형성하고, 양 헬리컬 링기어의 연장부가 서로 면접되도록 하여 축방향 하중을 상쇄할 수 있도록 한 것이다.That is, in the present invention, a pair of helical ring gears are installed in the sleeve, helical sun gears are installed at the center of both helical ring gears, and a plurality of helical satellite gears are installed between the helical sun gears and each helical ring gear. In constructing the double helical planetary gear, an extension part is formed inside the two helical ring gears, and the extension parts of both helical ring gears are interviewed with each other to cancel the axial load.

아울러 본 발명의 더블 헬리컬 유성기어는 각 헬리컬 링기어의 외주에 슬리브와의 접속을 위한 스퍼어 접속기어를 형성하되, 각 스퍼어 접속기어를 헬리컬 링기어의 외주 내측에 마련하여 반경방향의 하중을 감쇄할 수 있도록 한 것이다.In addition, the double helical planetary gear of the present invention forms a spur connecting gear for connection with a sleeve on the outer circumference of each helical ring gear, and provides each spur connecting gear inside the outer circumference of the helical ring gear to provide radial load. It is to be attenuated.

본 발명의 더블 헬리컬 유성기어에 의하면 각 헬리컬 링기어에 작용하는 축방향 하중 및 반경방향 하중을 저감할 수 있게 되어 보다 안정적인 감속이 이루어지게 되며, 헬리컬 링기어의 설계 및 제작을 용이하게 할 수 있게 될 뿐 아니라 하중 발란스를 위한 추가 구성품이 필요 없게 되는 등의 효과를 얻을 수 있게 된다.According to the double helical planetary gear of the present invention, it is possible to reduce the axial load and the radial load acting on each helical ring gear, thereby achieving a more stable deceleration, and to facilitate the design and manufacture of the helical ring gear. Not only that, but there is no need for additional components for load balancing.

도 1은 종래의 더블 헬리컬 유성기어의 개략도
도 2는 본 발명의 한 실시예의 사시도
도 3은 동 실시예의 헬리컬 링기어의 사시도
도 4는 동 실시예의 요부 종단면도1 is a schematic diagram of a conventional double helical planetary gear
2 is a perspective view of one embodiment of the present invention;
3 is a perspective view of a helical ring gear of the embodiment
4 is a longitudinal sectional view showing main parts of the embodiment;

이하 상기의 목적을 달성하기 위한 본 발명의 구체적인 기술 내용을 첨부도면에 의거하여 자세히 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

도 2에는 본 발명의 한 실시예의 사시도가 도시되어 있고, 도 3에는 동 실시예의 헬리컬 링기어의 사시도가 도시되어 있으며, 도 4에는 동 실시예의 요부 종단면도가 도시되어 있다.FIG. 2 shows a perspective view of one embodiment of the invention, FIG. 3 shows a perspective view of the helical ring gear of the embodiment, and FIG. 4 shows a principal longitudinal sectional view of the embodiment.

도 2 내지 도 4와 같이 본 발명은 슬리브(140)의 내부에 한 쌍의 헬리컬 링기어(130)가 설치되고, 양 헬리컬 링기어(130)의 중심에 헬리컬 선기어(110)가 설치되며, 헬리컬 선기어(110)와 각 헬리컬 링기어(130)의 사이에 다수의 헬리컬 위성기어(120)가 설치되는 더블 헬리컬 유성기어(100)를 구성함에 있어서,2 to 4, in the present invention, a pair of helical ring gears 130 are installed inside the sleeve 140, and helical sun gears 110 are installed at the centers of both helical ring gears 130. In constructing a double helical planetary gear 100 in which a plurality of helical satellite gears 120 are installed between the sun gear 110 and each helical ring gear 130,

상기 양 헬리컬 링기어(130)의 내측에 선단면이 서로 접촉되는 연장부(132)를 형성하여 양 헬리컬 링기어(130)의 내측단이 서로 면접되도록 한 것이다.The inner ends of both helical ring gears 130 are formed to be interviewed with each other by forming extension parts 132 in which the front end surfaces contact each other.

아울러 본 발명의 더블 헬리컬 유성기어(100)는 각 헬리컬 링기어(130)의 외주에 슬리브(140)와의 접속을 위한 스퍼어 접속기어(131)를 형성하되, 이 스퍼어 접속기어(131)를 헬리컬 링기어(130)의 외주 내측에 마련한 것이다.In addition, the double helical planetary gear 100 of the present invention forms a spur connecting gear 131 for connecting to the sleeve 140 on the outer circumference of each helical ring gear 130, the spur connecting gear 131 It is provided in the outer periphery of the helical ring gear 130.

도면부호중 미설명부호 150 및 250은 스톱링(Stop Ring)이다.Reference numerals 150 and 250 in the reference numerals are stop rings.

상기와 같이 구성된 본 발명의 더블 헬리컬 유성기어(100)에 있어서는 헬리컬 선기어(110)의 회전력을 다수의 헬리컬 위성기어(120)를 통해 한 쌍의 헬리컬 링기어(130)로 전달하는 과정에서 안정적인 감속이 수행되고, 양 헬리컬 링기어(130)의 회전력이 스퍼어 접속기어(131)를 통해 슬리브(140)에 전달된다.In the double helical planetary gear 100 of the present invention configured as described above, stable deceleration in the process of transmitting the rotational force of the helical sun gear 110 to the pair of helical ring gears 130 through the plurality of helical satellite gears 120. This is performed, and the rotational force of both helical ring gears 130 is transmitted to the sleeve 140 through the spur connecting gear 131.

본 발명의 더블 헬리컬 유성기어(100)에 있어서는 슬리브(140)의 내부에 설치되는 양 헬리컬 링기어(130)가 연장부(132)를 통해 서로 맞대어져 있기 때문에 각 헬리컬 링기어(130)에 걸리는 축방향 하중을 상쇄시킬 수 있게 되며, 양 헬리컬 링기어(130)의 외주에 축과 나란히 톱니가 마련된 단순한 구조의 스퍼어 접속기어(131)만을 형성하더라도 양 헬리컬 링기어(130)가 슬리브(140)에 회전력을 전달하는 데에 별다른 무리가 없게 되어 헬리컬 링기어(130)의 설계 및 제작이 용이하게 된다.In the double helical planetary gear 100 of the present invention, since both helical ring gears 130 installed inside the sleeve 140 are opposed to each other through the extension part 132, the helical ring gears 130 are caught by the helical ring gears 130. It is possible to offset the axial load, even if only the spur connecting gear 131 of the simple structure provided with the teeth in parallel with the shaft on the outer circumference of both helical ring gear 130 is the sleeve 140 There is no particular force to transmit the rotational force to the) it becomes easy to design and manufacture of the helical ring gear 130.

한편 본 발명의 더블 헬리컬 유성기어(100)에 있어서는 양 헬리컬 링기어(130)의 외주 내측에 스퍼어 접속기어(131)가 마련되기 때문에 각 헬리컬 링기어(130)의 반경방향 하중도 감쇄시킬 수 있게 된다.Meanwhile, in the double helical planetary gear 100 of the present invention, since the spur connecting gear 131 is provided inside the outer circumference of both helical ring gears 130, the radial load of each helical ring gear 130 can also be attenuated. Will be.

상기 스퍼어 접속기어(131)를 연장부(132)의 외주에 형성하는 등 헬리컬 링기어(130)의 외주의 너무 안쪽에 마련하게 되면 반경방향 하중으로 인하여 기존 축방향 비틀림과 반대방향으로의 비틀림이 발생할 가능성이 있다.When the spur connecting gear 131 is formed on the outer circumference of the extension part 132, and the inner side of the helical ring gear 130 is provided too far, the axial torsion in the opposite direction due to the radial load This is likely to occur.

이상에서 설명한 본 발명은 전술한 설명에 의해 한정되는 것은 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 있어 명백할 것이다.The present invention described above is not limited to the above description, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be obvious to you.

100: 더블 헬리컬 유성기어
110: 헬리컬 선기어
120: 헬리컬 위성기어
130: 헬리컬 링기어
131: 스퍼어 접속기어
132: 연장부
140: 슬리브100: double helical planetary gear
110: helical sun gear
120: helical satellite gear
130: helical ring gear
131: spur splice gear
132: extension
140: sleeve

Claims (2)

슬리브(140)의 내부에 한 쌍의 헬리컬 링기어(130)가 설치되고, 양 헬리컬 링기어(130)의 중심에 헬리컬 선기어(110)가 설치되며, 헬리컬 선기어(110)와 각 헬리컬 링기어(130)의 사이에 다수의 헬리컬 위성기어(120)가 설치되는 더블 헬리컬 유성기어를 구성함에 있어서,
상기 양 헬리컬 링기어(130)의 내측에 연장부(132)를 형성하고, 양 헬리컬 링기어(130)의 연장부(132)가 서로 면접되도록 하여 축방향 하중을 상쇄할 수 있도록 한 것을 특징으로 하는 더블 헬리컬 유성기어.A pair of helical ring gear 130 is installed inside the sleeve 140, and a helical sun gear 110 is installed at the center of both helical ring gears 130, and a helical sun gear 110 and each helical ring gear ( In constructing a double helical planetary gear in which a plurality of helical satellite gears 120 are installed between 130,
The extension part 132 is formed inside the two helical ring gears 130, and the extension parts 132 of the both helical ring gears 130 are interviewed with each other to cancel the axial load. Double Helical Planetary Gear. 제1항에 있어서, 각 헬리컬 링기어(130)의 외주에 슬리브(140)와의 접속을 위한 스퍼어 접속기어(131)를 형성하되, 각 스퍼어 접속기어(131)를 헬리컬 링기어(130)의 외주 내측에 마련하여 반경 방향의 하중을 감쇄할 수 있도록 한 것을 특징으로 하는 더블 헬리컬 유성기어.The spur connecting gear 131 is formed on the outer circumference of each helical ring gear 130, and the spur connecting gear 131 is connected to the helical ring gear 130. Double helical planetary gear, characterized in that provided in the outer circumference of the to reduce the radial load.
KR1020100131580A 2010-12-21 2010-12-21 Double Helical Planetary Gear KR101265095B1 (en)

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Publication number Priority date Publication date Assignee Title
DE102023100033A1 (en) 2022-01-27 2023-07-27 Miba Sinter Austria Gmbh planetary gear

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JP2001330085A (en) * 2000-05-22 2001-11-30 Honda Motor Co Ltd Planetary gear mechanism
JP4030337B2 (en) 2002-04-09 2008-01-09 日邦電機株式会社 Planetary gear type transmission and its backlash adjusting method
KR200333593Y1 (en) 2003-08-06 2003-11-14 박종헌 A planetary gear drive with carrier
US20090062058A1 (en) * 2007-08-27 2009-03-05 Kimes John W Plantary Transmission Having Double Helical Teeth

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023100033A1 (en) 2022-01-27 2023-07-27 Miba Sinter Austria Gmbh planetary gear

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