KR20020047958A - Constant velocity ratio universal joint for vehicle - Google Patents
Constant velocity ratio universal joint for vehicle Download PDFInfo
- Publication number
- KR20020047958A KR20020047958A KR1020000076610A KR20000076610A KR20020047958A KR 20020047958 A KR20020047958 A KR 20020047958A KR 1020000076610 A KR1020000076610 A KR 1020000076610A KR 20000076610 A KR20000076610 A KR 20000076610A KR 20020047958 A KR20020047958 A KR 20020047958A
- Authority
- KR
- South Korea
- Prior art keywords
- inner race
- constant velocity
- ball
- race
- velocity joint
- Prior art date
Links
Classifications
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/06—Lubrication details not provided for in group F16D13/74
Abstract
Description
본 발명은 자동차의 등속 조인트에 관한 것으로서, 보다 상세하게는 인너 레이스의 외주면에 유로를 형성하여 그리스의 공급이 원활하게 이루어질 수 있도록 된 자동차의 등속 조인트에 관한 것이다.The present invention relates to a constant velocity joint of an automobile, and more particularly, to a constant velocity joint of an automobile in which a flow path is formed on an outer circumferential surface of an inner race so that grease can be smoothly supplied.
일반적으로 자동차 엔진의 동력은 변속기를 통하여 추진축에 의해 뒤차축으로 전달되며, 변속기는 엔진 및 클러치와 함께 프레임에 설치되어 있고, 뒤차축은 섀시 스프링을 사이에 두고 차체에 설치되어 있으므로 노면에서 전달되는 충격이나 적재 하중의 변화에 따라 상하 전후로 움직이게 된다.In general, the power of the automobile engine is transmitted to the rear axle by the propulsion shaft through the transmission, and the transmission is installed on the frame together with the engine and the clutch, and the rear axle is installed on the vehicle body with the chassis spring interposed therebetween. It moves up and down in response to impact or load change.
따라서, 엔진의 동력을 원활하게 뒤차축에 전달하기 위해 추진축의 양쪽 끝에 유니버셜 조인트와 추진축의 앞쪽 또는 중간 부분에 슬립 조인트를 설치하게 된다.Therefore, in order to smoothly transmit the power of the engine to the rear axle, the universal joint and the slip joint are installed at the front or middle portion of the propulsion shaft at both ends of the propulsion shaft.
그리고, 전륜 구동차나 4륜 구동차에서 종감속 장치에 연결된 구동 차축에 설치되어 바퀴에 동력 전달용으로 사용되는 등속 조인트(Constant Velocity Joint)는 항상 구동축과 피구동축의 접점을 축의 교차각의 2등분선상에 있게 하여 등속으로 동력 전달을 행하게 된다.In addition, constant velocity joints, which are installed on drive axles connected to longitudinal reduction gears in all-wheel drive or four-wheel drive vehicles, and are used for power transmission to the wheels, always have the contact points between the drive shaft and the driven shaft in the bisector of the intersection angle of the shaft. Power transmission at constant speed.
종래에 이와 같은 등속 조인트 중에서 특히 버필드형(Birfield Type)은 도 1에 도시한 바와 같이 도시하지 않는 구동축이 결합되는 인너 레이스(10)의 외측에는 볼(11) 및 볼 케이지(12)를 개재하여 하여 피구동축(13)이 결합되는데, 상기 피구동축(13)의 내측에는 상기 볼(11)이 위치되는 아우터 레이스(14)가 형성된 구조로 이루어진다.Conventionally, among such constant velocity joints, the Burfield type has a ball 11 and a ball cage 12 outside the inner race 10 to which a drive shaft (not shown) is coupled, as shown in FIG. 1. By doing so, the driven shaft 13 is coupled, and the inner side of the driven shaft 13 has an outer race 14 in which the ball 11 is located.
그러나, 이와 같은 종래의 자동차의 등속 조인트는 인너 레이스와 아우트 레이스가 접촉하면서 회전하게 되는데, 이때 80℃~120℃ 정도의 열이 발생됨으로써 그 외측에 피복되는 부트가 열화되어 수명을 단축시킨다고 하는 등의 문제점이 있었다.However, such a constant velocity joint of a conventional vehicle is rotated while the inner race and the outer race are in contact with each other. At this time, the heat generated at about 80 ° C. to 120 ° C. causes the boot coated on the outside to deteriorate and shorten the life. There was a problem.
따라서, 본 발명은 상술한 종래 기술의 문제점들을 해결하기 위하여 발명된 것으로서, 본 발명의 목적은 인너 레이스의 내부로 그리스가 원활하게 공급되도록 하여 열의 발생을 최소화함과 동시에 열에 의한 부트 등의 열화를 방지할 수 있는 자동차의 등속 조인트를 제공하는데 있다.Accordingly, the present invention has been invented to solve the above-mentioned problems of the prior art, and an object of the present invention is to smoothly supply grease into the inner race to minimize the generation of heat and at the same time to deteriorate the boot by heat. It is to provide a constant velocity joint of a vehicle which can be prevented.
도 1 은 종래 자동차의 등속 조인트를 도시한 분해 사시도이다.1 is an exploded perspective view showing a constant velocity joint of a conventional vehicle.
도 2 는 본 발명에 의한 자동차의 등속 조인트를 도시한 결합 단면도이다.2 is a cross-sectional view illustrating a constant velocity joint of a vehicle according to the present invention.
도 3 은 본 발명에 의한 자동차의 등속 조인트를 도시한 요부 정면도이다.3 is a front view illustrating main parts of a constant velocity joint of a vehicle according to the present invention;
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
20: 아우터 레이스 30: 볼20: outer race 30: ball
40: 볼 케이지 50: 인너 레이스40: ball cage 50: inner race
52: 유로52: Euro
이와 같은 목적을 달성하기 위한 본 발명에 따른 자동차의 등속 조인트는, 아우터 레이스의 내측에 볼 및 볼 케이지를 개재하여 결합되는 인너 레이스를 구비하는 자동차의 등속 조인트에 있어서, 상기 인너 레이스의 외주면에는 그리스가 유통되는 복수 개의 유로가 형성된 것을 특징으로 한다.A constant velocity joint of a vehicle according to the present invention for achieving the above object is a constant velocity joint of a vehicle having an inner race coupled to a ball and a ball cage inside the outer race, wherein the outer peripheral surface of the inner race is grease Is characterized in that a plurality of flow paths are formed.
따라서 본 발명에 의하면, 인너 레이스의 외주면에 형성된 복수 개의 유로를 통하여 그리스가 공급됨으로써 열의 발생이 최소화되어 부트 등의 열화가 방지됨과 동시에 원활한 윤활 작용이 이루어지는 것이다.Therefore, according to the present invention, since grease is supplied through a plurality of flow paths formed on the outer circumferential surface of the inner race, generation of heat is minimized to prevent deterioration of a boot or the like and smooth lubrication is performed.
이하, 본 발명의 바람직한 실시예를 첨부된 도면에 의하여 더욱 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
도 2 는 본 발명에 의한 자동차의 등속 조인트를 도시한 결합 단면도로서, 부호 (20)은 아우터 레이스를 나타내고 있으며, 상기 아우터 레이스(20)의 내측에는 복수 개의 볼(30)이 일정한 간격을 두고 위치되는 볼 케이지(40)가 결합된다.2 is a cross-sectional view illustrating a constant velocity joint of the vehicle according to the present invention, wherein reference numeral 20 denotes an outer race, and a plurality of balls 30 are positioned at regular intervals inside the outer race 20. Ball cage 40 is coupled.
그리고, 상기 볼 케이지(40)의 내측에는 구동축과 결합되는 인너 레이스(50)가 결합된다.The inner race 50 coupled to the driving shaft is coupled to the inside of the ball cage 40.
상기 인너 레이스(50)의 외측에는 볼(30)의 하측이 삽입되는 복수 개의 볼자리(51)가 방사상으로 일정한 간격을 두고 형성되어 있고, 외주면에는 축방향으로 복수 개의 유로(52)가 형성되어 있다.On the outer side of the inner race 50, a plurality of ball seats 51 into which the lower side of the ball 30 is inserted are formed radially at regular intervals, and a plurality of flow paths 52 are formed on the outer circumferential surface in the axial direction. have.
상기 유로(52)는 그리스가 원활하게 유통됨으로써 아우터 레이스(20) 및 인너 레이스(50)에서 발생되는 열을 냉각시킴과 동시에 윤활이 이루어지도록 하게 된다.The flow path 52 allows lubrication while cooling grease generated by the outer race 20 and the inner race 50 by smoothly distributing grease.
이와 같이 구성된 본 발명에 의한 자동차의 등속 조인트는 인너 레이스(50)와 아우터 레이스(20)가 일정 각도를 유지하면서 접촉된 상태로 회전하게 되는데, 이때 인너 레이스(50)의 외주면에 형성된 복수 개의 유로(52)를 통하여 그리스가 내부로 원활하게 공급되고, 이에 따라 내, 외부로 공급된 그리스에 의해 냉각이 이루어져 열의 발생이 최소화됨과 동시에 원활한 윤활이 이루어지게 되는 것이다.The constant velocity joint of the vehicle according to the present invention configured as described above rotates while the inner race 50 and the outer race 20 are in contact with each other while maintaining a predetermined angle. In this case, a plurality of flow paths formed on the outer circumferential surface of the inner race 50 are provided. The grease is smoothly supplied to the inside through the 52, and thus cooling is performed by the grease supplied to the inside and the outside, thereby minimizing the generation of heat and at the same time smooth lubrication.
상술한 바와 같이 본 발명에 의하면, 인너 레이스의 외주면에 형성된 복수 개의 유로를 통하여 그리스가 공급됨으로써 열의 발생이 최소화되어 부트 등의 열화가 방지됨과 동시에 원활한 윤활 작용이 이루어지는 등의 여러 가지 효과가 있다.As described above, according to the present invention, since grease is supplied through a plurality of flow paths formed on the outer circumferential surface of the inner race, generation of heat is minimized to prevent deterioration of a boot or the like and smooth lubrication is performed.
본 발명은 구체적인 실시예에 대해서만 상세히 설명하였지만 본 발명의 기술적 사상의 범위 내에서 변형이나 변경할 수 있음은 본 발명이 속하는 분야의 당업자에게는 명백한 것이며, 그러한 변형이나 변경은 본 발명의 특허청구범위에 속한다 할 것이다.Although the present invention has been described in detail only with respect to specific embodiments, it will be apparent to those skilled in the art that modifications and variations can be made within the scope of the technical idea of the present invention, and such modifications or changes belong to the claims of the present invention. something to do.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020000076610A KR20020047958A (en) | 2000-12-14 | 2000-12-14 | Constant velocity ratio universal joint for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020000076610A KR20020047958A (en) | 2000-12-14 | 2000-12-14 | Constant velocity ratio universal joint for vehicle |
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KR20020047958A true KR20020047958A (en) | 2002-06-22 |
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Family Applications (1)
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KR1020000076610A KR20020047958A (en) | 2000-12-14 | 2000-12-14 | Constant velocity ratio universal joint for vehicle |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060036941A (en) * | 2004-10-26 | 2006-05-03 | 한국델파이주식회사 | Cross groove type constant velocity joint provided with cooling groove |
KR100931169B1 (en) * | 2004-09-07 | 2009-12-11 | 현대자동차주식회사 | Constant velocity joint structure of drive shaft |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4319465A (en) * | 1978-12-04 | 1982-03-16 | Ntn Toyo Bearing Company, Ltd. | Constant velocity joint |
JPH0722133U (en) * | 1993-09-27 | 1995-04-21 | エヌティエヌ株式会社 | Constant velocity universal joint |
JPH07301247A (en) * | 1994-05-06 | 1995-11-14 | Unisia Jecs Corp | Constant velocity universal joint |
-
2000
- 2000-12-14 KR KR1020000076610A patent/KR20020047958A/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4319465A (en) * | 1978-12-04 | 1982-03-16 | Ntn Toyo Bearing Company, Ltd. | Constant velocity joint |
JPH0722133U (en) * | 1993-09-27 | 1995-04-21 | エヌティエヌ株式会社 | Constant velocity universal joint |
JPH07301247A (en) * | 1994-05-06 | 1995-11-14 | Unisia Jecs Corp | Constant velocity universal joint |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100931169B1 (en) * | 2004-09-07 | 2009-12-11 | 현대자동차주식회사 | Constant velocity joint structure of drive shaft |
KR20060036941A (en) * | 2004-10-26 | 2006-05-03 | 한국델파이주식회사 | Cross groove type constant velocity joint provided with cooling groove |
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