KR100398340B1 - The dual final- reduction apparatus - Google Patents

The dual final- reduction apparatus Download PDF

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Publication number
KR100398340B1
KR100398340B1 KR10-2001-0042686A KR20010042686A KR100398340B1 KR 100398340 B1 KR100398340 B1 KR 100398340B1 KR 20010042686 A KR20010042686 A KR 20010042686A KR 100398340 B1 KR100398340 B1 KR 100398340B1
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KR
South Korea
Prior art keywords
gear
housing
ring gear
planetary gear
pinion
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KR10-2001-0042686A
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Korean (ko)
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KR20030006779A (en
Inventor
채광수
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현대자동차주식회사
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Priority to KR10-2001-0042686A priority Critical patent/KR100398340B1/en
Publication of KR20030006779A publication Critical patent/KR20030006779A/en
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Publication of KR100398340B1 publication Critical patent/KR100398340B1/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
    • 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
    • F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
    • F16H13/06—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members with members having orbital motion
    • F16H13/08—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members with members having orbital motion with balls or with rollers acting in a similar manner
    • 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
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/037—Gearboxes for accommodating differential gearings
    • 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
    • F16H48/00—Differential gearings
    • F16H48/38—Constructional details
    • F16H2048/385—Constructional details of the ring or crown gear

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

본 발명은 종감속장치에 관한 것으로서, 보다 상세하게는 엔진 토크의 증대에 따른 효율적인 감속를 위한 이중종감속장치에 관한 것이다.The present invention relates to a longitudinal reduction gear, and more particularly to a dual longitudinal reduction gear for efficient deceleration according to the increase of the engine torque.

이와 같은 본 발명은 하우징과; 엔진의 추진축에 연결되어 상기 하우징내에 장착된 피니언기어와; 상기 피니언기어의 회전축과 직각되게 맞물려 회전되고 중심에 외측 톱니가 형성된 원형의 선기어가 일체형으로 형성된 링기어와; 상기 하우징의 내측에 연결되어 고정되고 내측 톱니가 형성된 원형의 인터널기어와; 상기 링기어의 선기어와 상기 인터널기어 사이에 설치된 유성기어와; 상기 유성기어의 회전축에 연결되고 좌우 차축의 회전차를 흡수하는 차동부를 특징으로 하여 가능하게 된다.Such a present invention comprises a housing; A pinion gear connected to the propulsion shaft of the engine and mounted in the housing; A ring gear having a circular sun gear integrally rotated to be engaged with the rotation axis of the pinion gear and having an outer tooth formed at its center; A circular internal gear connected to the inside of the housing and fixed and having an inner tooth; A planetary gear disposed between the sun gear of the ring gear and the internal gear; It is possible to feature a differential unit connected to the rotary shaft of the planetary gear and absorbs the difference in rotation of the left and right axles.

Description

이중 종감속장치{The dual final- reduction apparatus}The dual final reduction apparatus

본 발명은 종감속장치에 관한 것으로서, 보다 상세하게는 엔진 토크의 증대에 따른 효율적인 감속를 위한 이중종감속장치에 관한 것이다.The present invention relates to a longitudinal reduction gear, and more particularly to a dual longitudinal reduction gear for efficient deceleration according to the increase of the engine torque.

일반적으로 종감속장치는 변속기에서 나온 고회전수를 일정 비율로 감속시키고 구동력을 증대시켜 휠(wheel)에 동력을 전달시킨다.In general, the longitudinal reduction gear transmits power to a wheel by decelerating a high speed from a transmission by a certain ratio and increasing driving force.

그리고, 좌우 휠의 회전차를 흡수하기 위해 차동부가 종감속장치와 일체로 설치된다.In addition, the differential unit is integrally installed with the longitudinal reduction device to absorb the rotation difference of the left and right wheels.

도 1은 종래 기술에 따른 종감속장치가 도시된 개략도이다.1 is a schematic view showing a longitudinal reduction device according to the prior art.

종래의 종감속장치는 도 1에 도시된 바와 같이, 하우징(10)과, 엔진(미도시)의 추진축에 연결되어 상기 하우징(10)내에 장착된 피니언기어(20)와, 상기 피니언기어(20)의 회전축과 직각되게 맞물려 회전되는 링기어(30)와, 상기 링기어(30)의 일측에 일체로 되어 좌우 차축의 회전차를 흡수하는 차동부(40)로 이루어진다.As shown in FIG. 1, the conventional longitudinal reduction device is connected to a housing 10, a propulsion shaft of an engine (not shown), and a pinion gear 20 mounted in the housing 10 and the pinion gear 20. Ring gear 30 is rotated by being engaged with the rotation axis of the right angle) and the differential portion 40 is integrated into one side of the ring gear 30 to absorb the rotation difference of the left and right axles.

상기 차동창치(40)는 차동피니언기어(미도시)와 차동사이드기어(미도시)로 구성된다.The differential window 40 includes a differential pinion gear (not shown) and a differential side gear (not shown).

상기와 같이 구성된 종감속장치는 엔진의 추진축에 연결된 상기 피니언기어(20)가 회전됨에 따라 직각으로 맞물려있는 상기 링기어(30)가 회전하게 되어 차축이 회전하게 된다.In the longitudinal reduction device configured as described above, as the pinion gear 20 connected to the propulsion shaft of the engine is rotated, the ring gear 30 meshed at right angles rotates so that the axle rotates.

그리고, 상기 차동부(40)에 의해 좌우 차축의 회전차가 흡수되어 차량은 원할하게 회전하게 된다.In addition, the difference between the left and right axles is absorbed by the differential unit 40 so that the vehicle rotates smoothly.

그러나, 상기와 같이 구성된 종래의 종감속장치는 엔진의 토크가 증대됨에 따라 전달되는 힘을 허용하기 위해 상기 링기어의 크기를 동시에 증대시켜야 하는데, 상기 링기어의 크기가 증대됨에 따라 차축하우징도 동시에 크기가 증대되어야 한다.However, the conventional longitudinal reduction gear configured as described above should simultaneously increase the size of the ring gear to allow the force to be transmitted as the torque of the engine is increased, and at the same time the axle housing also increases as the size of the ring gear increases. The size should be increased.

결국 이는 차량의 최저지상고가 낮아져 상품성 측면에서 좋지 않는 문제점이 있다.After all, this is because the minimum ground height of the vehicle is lowered, there is a problem in terms of merchandise.

그리고, 하우징내의 링기어와 피니언기어로 1차 감속시키고 휠측의 허브(hub)에서 유성기어를 이용하여 2차 감속시키는 허브리덕션 차축의 경우는 허브측 구조의 복잡성으로 인해 정비성이 좋지 않는 문제점이 있다.In addition, in case of the hub reduction axle which decelerates the ring gear and the pinion gear first in the housing and secondly decelerates with the planetary gear at the hub on the wheel side, the maintenance of the hub side is poor due to the complexity of the hub side structure. have.

본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 엔진 토크의 증대에 따른 효율적인 감속를 위한 이중종감속장치를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems of the prior art, an object of the present invention is to provide a dual longitudinal reduction gear for efficient deceleration according to the increase of the engine torque.

도 1은 종래 기술에 따른 종감속장치가 도시된 개략도.1 is a schematic view showing a longitudinal reduction device according to the prior art.

도 2는 본 발명에 따른 이중종감속장치가 도시된 개략도.Figure 2 is a schematic diagram showing a dual slave reduction apparatus according to the present invention.

도 3은 본 발명에 따른 이중종감속장치의 부분 상세도.Figure 3 is a partial detailed view of the dual slave reduction apparatus according to the present invention.

도 4는 본 발명에 따른 이중종감속장치의 작용을 보여주는 개략도.Figure 4 is a schematic diagram showing the action of the dual slave reduction apparatus according to the present invention.

<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>

50 : 하우징 60 : 피니언기어50 housing 60 pinion gear

70 : 링기어 71 : 선기어70 ring gear 71 sun gear

80 : 인터널기어 90 : 유성기어80: internal gear 90: planetary gear

100 : 차동부 110 : 차축100: differential 110: axle

상기한 과제를 실현하기 위한 본 발명에 따른 이중종감속장치는 하우징과; 엔진의 추진축에 연결되어 상기 하우징내에 장착된 피니언기어와; 상기 피니언기어의 회전축과 직각되게 맞물려 회전되고 중심에 외측 톱니가 형성된 원형의 선기어가 일체형으로 형성된 링기어와; 상기 하우징의 내측에 연결되어 고정되고 내측 톱니가 형성된 원형의 인터널기어와; 상기 링기어의 선기어와 상기 인터널기어 사이에 설치된 유성기어와; 상기 유성기어의 회전축에 연결되고 좌우 차축의 회전차를 흡수하는 차동부를 포함하여 이루어진다.A dual slave reduction apparatus according to the present invention for realizing the above object is a housing; A pinion gear connected to the propulsion shaft of the engine and mounted in the housing; A ring gear having a circular sun gear integrally rotated to be engaged with the rotation axis of the pinion gear and having an outer tooth formed at its center; A circular internal gear connected to the inside of the housing and fixed and having an inner tooth; A planetary gear disposed between the sun gear of the ring gear and the internal gear; And a differential part connected to the rotational shaft of the planetary gear and absorbing the rotational difference between the left and right axles.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예들을 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 이중종감속장치가 도시된 개략도이고, 도 3은 본 발명에 따른 이중종감속장치의 부분 상세도이다.Figure 2 is a schematic diagram showing a dual slave reduction apparatus according to the present invention, Figure 3 is a partial detail of the dual slave reduction apparatus according to the present invention.

도 2, 도 3에 도시된 바와 같이, 본 발명의 이중종감속장치는 하우징(50)과, 엔진의 추진축에 연결되어 상기 하우징(50)내에 장착된 피니언기어(60)와, 상기 피니언기어(60)의 회전축과 직각되게 맞물려 회전되고 중심에 외측 톱니가 형성된 원형의 선기어(71)가 일체형으로 형성된 링기어(70)와, 상기 하우징(50)의 내측에 연결되어 고정되고 내측 톱니가 형성된 원형의 인터널기어(80)와, 상기 링기어(70)의 선기어(71)와 상기 인터널기어(80) 사이에 설치된 유성기어(90)와, 상기 유성기어(90)의 회전축에 연결되고 좌우 차축의 회전차를 흡수하는 차동부(100)로 이루어진다.As shown in Figures 2 and 3, the dual longitudinal reduction device of the present invention is connected to the housing 50, the propulsion shaft of the engine and the pinion gear 60 mounted in the housing 50, and the pinion gear ( A ring gear 70 formed of an integrally formed circular sun gear 71 having an outer tooth formed at the center thereof and being rotated at right angles with a rotational axis of the 60; Connected to the internal gear 80 of the ring gear 70, the sun gear 71 of the ring gear 70, and the planetary gear 90 installed between the internal gear 80, and a rotation shaft of the planetary gear 90. It consists of a differential unit 100 for absorbing the rotation difference of the axle.

상기 유성기어(90)는 상기 링기어(70)의 선기어(71) 외측 톱니와 상기 인터널기어(80)의 내측 톱니에 맞물리게 3~4개 정도 설치되어 자전 및 공전한다.The planetary gear 90 rotates and rotates about 3 to 4 in engagement with the outer gear 71 of the ring gear 70 and the inner teeth of the internal gear 80.

상기 차동부(100)는 일측 끝단이 상기 유성기어(90)의 회전축에 연결된 차동케이스(101) 내부에 차동피니언기어(102)와 차동사이드기어(103)가 서로 직각되게 맞물려 회전되고 차축(110)이 좌우로 설치된다.The differential unit 100 is rotated by engaging the differential pinion gear 102 and the differential side gear 103 at right angles to each other in the differential case 101 having one end connected to the rotation shaft of the planetary gear 90. ) Is installed from side to side.

상기 링기어(70)는 일측이 상기 하우징(50)의 내측과 차축사이에 베어링(74)으로 지지되고 타측이 상기 링기어(70)의 일측에 볼트(75)로 체결되어 고정된 링기어케이스(72)에 의해 지지된다.The ring gear 70 has a ring gear case in which one side is supported by a bearing 74 between the inner side and the axle of the housing 50 and the other side is fastened by bolts 75 to one side of the ring gear 70. Supported by 72.

상기 유성기어(90)와 유성기어의 회전축 사이에 니들롤러베어링(91)이 장착된다.A needle roller bearing 91 is mounted between the planetary gear 90 and the rotation shaft of the planetary gear.

상기와 같이 구성되는 본 발명에 따른 이중종감속장치의 작용을 설명하면 다음과 같다.Referring to the operation of the dual slave reduction apparatus according to the present invention configured as described above are as follows.

도 4는 본 발명에 따른 이중종감속장치의 작용을 보여주는 개략도이다.Figure 4 is a schematic diagram showing the operation of the dual slave reduction apparatus according to the present invention.

도 4에 도시된 바와 같이, 엔진의 추진축에 연결된 상기 피니언기어(60)가 회전됨에 따라 직각으로 맞물려있는 상기 링기어(70)가 회전되고, 상기 링기어(70)의 일측에 일체형으로 형성된 상기 선기어(71)는 상기 유성기어(90)를 회전시킨다.As shown in FIG. 4, as the pinion gear 60 connected to the propulsion shaft of the engine is rotated, the ring gear 70 meshed at right angles is rotated, and the ring gear 70 is integrally formed at one side of the ring gear 70. The sun gear 71 rotates the planetary gear 90.

상기 유성기어(90)는 상기 선기어(71)와 상기 인터널기어(80) 사이에서 자전하면서 공전한다.The planetary gear 90 rotates while rotating between the sun gear 71 and the internal gear 80.

상기 유성기어(90)가 회전됨에 따라 상기 유성기어(90)의 회전축에 연결된 상기 차동부(100)가 회전되고, 상기 차동부(100)내의 차동피니언기어(102)에 맞물려 차동사이드기어(103)가 회전된다.As the planetary gear 90 is rotated, the differential unit 100 connected to the rotational shaft of the planetary gear 90 is rotated, and the differential side gear 103 is engaged with the differential pinion gear 102 in the differential unit 100. ) Is rotated.

상기 차동사이드기어(103)는 차축(110)과 스플라인(미도시)으로 맞물려 있고 이에 따라 휠이 구동된다.The differential side gear 103 is meshed with the axle 110 with a spline (not shown), thereby driving the wheel.

따라서, 본 발명의 이중종감속장치는 하우징(50) 내부에서 상기 피니언기어(60)와 상기 링기어(70) 사이에서 1차 감속되고, 상기 인터널기어(80)와 상기 유성기어(90)에 의해 2차 감속되는 이중감속구조이다.Accordingly, the dual longitudinal reduction apparatus of the present invention is primarily decelerated between the pinion gear 60 and the ring gear 70 in the housing 50, and the internal gear 80 and the planetary gear 90 are decelerated. It is a double deceleration structure which is decelerated second by

또한, 허브(미도시)에는 별도의 감속장치가 필요없게 된다.In addition, the hub (not shown) does not need a separate deceleration device.

여기서, 총감속비 = 종감속비 ×유성기어비 이다Where total reduction ratio = longitudinal reduction ratio x planetary gear ratio

종감속비= 링기어 잇수/피니언기어 잇수Percent reduction ratio = Number of ring gear teeth / pinion gear teeth

유성기어비=(선기어 잇수 + 인터널기어 잇수)/ 선기어잇수Planetary gear ratio = (number of sun gear teeth + number of internal gear teeth) / number of sun gear teeth

이상과 같이 본 발명에 따른 이중종감속장치를 예시된 도면을 참조로 설명하였으나, 본 명세서에 개시된 실시예와 도면에 의해 본 발명은 한정되지 않으며 그 발명의 기술사상 범위내에서 당업자에 의해 다양한 변형이 이루어질 수 있음은 물론이다.As described above with reference to the illustrated double-speed reduction apparatus according to the present invention, the present invention is not limited by the embodiments and drawings disclosed herein and various modifications by those skilled in the art within the scope of the technical spirit of the invention Of course this can be done.

상기한 바와 같은 본 발명의 이중종감속장치는 엔진으로 부터의 회전수를 하우징 내부에서 피니언기어와 링기어 사이에서 1차 감속하고, 인터널기어와 유성기어에서 2차 감속시킴으로써, 상기 링기어의 크기를 작게하여 하우징의 단면 지름을 줄이게 되어 최저지상고를 유리하게 할 수 있고, 그에 따른 상품성 향상의 장점이 있다.As described above, the dual-speed reduction apparatus of the present invention reduces the rotational speed from the engine by the first reduction between the pinion gear and the ring gear in the housing, and the second reduction in the internal gear and the planetary gear. By reducing the size of the housing to reduce the diameter of the cross-section can be advantageous to the lowest ground height, there is an advantage of improving the merchandise.

따라서, 산간 오지형 차량과 초저상차량에 적용할 수 있다.Therefore, the present invention can be applied to mountainous backcountry vehicles and ultra low profile vehicles.

또한, 허브에는 별도의 감속장치가 필요없어 구조가 간단하여 정비성이 향상되는 장점이 있다.In addition, the hub does not need a separate deceleration device has the advantage that the structure is simple and maintainability is improved.

Claims (4)

하우징과; 엔진의 추진축에 연결되어 상기 하우징내에 장착된 피니언기어와; 상기 피니언기어의 회전축과 맞물려 회전되고 중심에 외측 톱니가 형성된 원형의 선기어가 일체형으로 형성된 링기어와; 상기 하우징의 내측에 연결되어 고정되고 내측 톱니가 형성된 원형의 인터널기어와; 상기 링기어의 선기어와 상기 인터널기어 사이에 설치된 유성기어와; 상기 유성기어의 회전축에 연결되고 좌우 차축의 회전차를 흡수하는 차동부를 포함하여 이루어진 것을 특징으로 하는 이중종감속장치.A housing; A pinion gear connected to the propulsion shaft of the engine and mounted in the housing; A ring gear integrally formed with a circular sun gear which is rotated in engagement with the rotation shaft of the pinion gear and has an outer tooth formed at the center thereof; A circular internal gear connected to the inside of the housing and fixed and having an inner tooth; A planetary gear disposed between the sun gear of the ring gear and the internal gear; And a differential part connected to the rotational shaft of the planetary gear and absorbing a rotational difference between the left and right axles. 제 1항에 있어서,The method of claim 1, 상기 링기어는 상기 피니언기어의 회전축과 직각되게 맞물려 회전되는 것을 특징으로 하는 이중종감속장치.The ring gear is a dual longitudinal reduction device, characterized in that rotated to mesh perpendicular to the rotation axis of the pinion gear. 제 1항 있어서,The method of claim 1, 상기 링기어는 일측이 상기 하우징의 내측과 차축사이에 베어링으로 지지되고 타측이 상기 링기어의 일측에 볼트로 체결되어 고정된 링기어케이스에 의해 지지되는 것을 특징으로 하는 이중종감속장치.And the ring gear is supported by a ring gear case in which one side is supported by a bearing between the inner side and the axle of the housing and the other side is fixed by bolting to one side of the ring gear. 제 1항에 있어서,The method of claim 1, 상기 유성기어와 유성기어의 회전축 사이에 니들롤러베어링이 장착된 것을특징으로 하는 이중종감속장치.And a needle roller bearing is mounted between the planetary gear and the rotational shaft of the planetary gear.
KR10-2001-0042686A 2001-07-16 2001-07-16 The dual final- reduction apparatus KR100398340B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS644511A (en) * 1987-06-25 1989-01-09 Mazda Motor Power transmission device for vehicle
JPH02125125A (en) * 1988-11-02 1990-05-14 Koichi Haruta Power transmitting device
KR19990032010U (en) * 1997-12-31 1999-07-26 정몽규 Two-speed reduction gear
KR19990060239A (en) * 1997-12-31 1999-07-26 정몽규 Gearbox

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS644511A (en) * 1987-06-25 1989-01-09 Mazda Motor Power transmission device for vehicle
JPH02125125A (en) * 1988-11-02 1990-05-14 Koichi Haruta Power transmitting device
KR19990032010U (en) * 1997-12-31 1999-07-26 정몽규 Two-speed reduction gear
KR19990060239A (en) * 1997-12-31 1999-07-26 정몽규 Gearbox

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