KR20030092770A - Anti axial force double offset constant velocity joint - Google Patents

Anti axial force double offset constant velocity joint Download PDF

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Publication number
KR20030092770A
KR20030092770A KR1020020030585A KR20020030585A KR20030092770A KR 20030092770 A KR20030092770 A KR 20030092770A KR 1020020030585 A KR1020020030585 A KR 1020020030585A KR 20020030585 A KR20020030585 A KR 20020030585A KR 20030092770 A KR20030092770 A KR 20030092770A
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KR
South Korea
Prior art keywords
constant velocity
velocity joint
cage
double offset
offset constant
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KR1020020030585A
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Korean (ko)
Inventor
임종순
김기훈
정도현
고웅희
이효상
배원락
김진용
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자동차부품연구원
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Priority to KR1020020030585A priority Critical patent/KR20030092770A/en
Publication of KR20030092770A publication Critical patent/KR20030092770A/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
    • 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
    • F16D2300/22—Vibration damping

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

PURPOSE: An axial force reduction-type double offset constant velocity joint is provided to reduce vibration and noise of a vehicle by reducing sliding resistance and axial force generated in the double offset constant velocity joint, to reduce the generation of heat caused by friction by the reduction of sliding movements, and accordingly to improve durability. CONSTITUTION: An axial force reduction-type double offset constant velocity joint is composed of six rectilinear ball track grooves(3,4) axially formed to the inside of an outer race(1) and the outside of an inner race(2) at equal angles of 60 degrees; six balls(5) assembled between the ball track grooves; a cage(6) supporting and guiding the balls to a predetermined position when the joint is a folding angle; a cage holder(12) inserted between the outer race and the cage; and plural balls(10) axially installed in a retainer(11) at which the cage holder and the outer race are contacted.

Description

축력 저감형 더블 옵셋 등속 조인트.{Anti axial force double offset constant velocity joint}Axial force reduced double offset constant velocity joint.

본 발명은 더블 옵셋 등속조인트에 관한 것으로, 더욱 상세하게는 더블 옵셋 등속조인트의 내부 구성 부품의 형상을 개선 및 부품을 추가하여 등속조인트의 축력을 감소시킴으로써, 차량에서 발생되는 횡방향 진동 및 소음을 줄이도록 된 것이다.The present invention relates to a double offset constant velocity joint, and more particularly, to improve the shape of the internal components of the double offset constant velocity joint and to add a component to reduce the axial force of the constant velocity joint, thereby reducing the lateral vibration and noise generated in the vehicle. It is intended to reduce.

일반적으로 플랜지형 등속조인트는 트라이포드(tripod), 더블 옵셋(double offset), 크로스 그루브(cross groove) 형식이 있다.In general, flanged constant velocity joints are of the form tripod, double offset, cross groove.

트라이포드 등속조인트는 적은 축력을 발생하지만 질량중심이 일정한 궤적을 이루고 운동하는 오빗(orbit)현상을 일으킨다. 이 현상은 차량을 가진 시켜 승차감을 나쁘게 한다.Tripod constant velocity joints produce less axial force, but they produce orbital phenomena with a constant center of mass. This phenomenon makes the vehicle worse with the riding comfort.

오빗이 없고 상대적으로 축력이 큰 기존의 더블 옵셋 등속조인트의 구성을 도 1에 도시하였으며, 도시된 바와 같이 더블 옵셋 등속조인트는, 외륜(1)의 내면과 내륜(2)의 외면에 각각 축방향으로 6개의 직선형 볼 트랙홈(3)(4)이 사이에는 6개의 볼(5)이 조립되어 있으며, 상기 볼(5)은 케이지(6)로 지지되어 있다.The configuration of a conventional double offset constant velocity joint without an orbit and having a relatively large axial force is illustrated in FIG. 1, and as shown, the double offset constant velocity joint has an axial direction on an inner surface of the outer ring 1 and an outer surface of the inner ring 2, respectively. Thus, six balls 5 are assembled between the six linear ball track grooves 3 and 4, and the balls 5 are supported by cages 6.

또한, 상기케이지(6)의 외주는 구면(7)으로 되어 있고, 내주는 내륜(2)의 외주에 적합한 내구면(8)으로 형성되어 있으며, 각 구면(7)(8)의 중심(O1)(O2)을 외륜(1)의 축중심선 상에서 축방향으로 좌, 우로 위치하도록 되어 있다.In addition, the outer circumference of the cage 6 has a spherical surface 7, and the inner circumference is formed with an inner surface 8 suitable for the outer circumference of the inner ring 2, and the center O1 of each spherical surface 7, 8. ) O2 is positioned left and right in the axial direction on the axial center line of the outer ring 1.

이와 같은 더블 옵셋 등속 조인트는, 차량에 장착되어 작동각을 이룬 상태에서 회전 토오크를 전달하는 경우 트랙홈(3)(4)과 볼(5)과의 끼워맞춤 상태에서 구름운동과 미끄럼운동이 발생하며, 또한 케이지(6)와 외륜(1) 및 케이지(6)와 내륜(2)과의 미끄럼운동이 발생한다. 그러나 미끄럼 운동은 각 부분의 미끄럼 저항으로 진동 측면에서 좋지 않은 영향을 미친다.Such double offset constant velocity joints generate rolling motion and sliding motion in the fitted state of the track grooves (3) and (4) when the torque is transmitted in a state where the vehicle is mounted on the vehicle at an operating angle. In addition, the sliding motion of the cage 6 and the outer ring 1 and the cage 6 and the inner ring 2 occurs. However, the sliding motion is bad in terms of vibration due to the sliding resistance of each part.

차량이 정차 혹은 주행 중일 때에는 엔진과 도로면의 상태 등에 따라 차체진동이 발생되며, 차체진동 중에 구동축 부위로 전달되는 진동은 더블 옵셋 등속조인트의 미끄럼 저항으로 인해 조인트 내부에 축력과 아이들링(idling)진동을 발생시키며, 이는 차체로 전달되어 승차원에게 불쾌감을 주게 된다.When the vehicle is stopped or running, body vibrations occur according to the engine and road surface conditions, and the vibrations transmitted to the drive shaft during the body vibrations are caused by axial and idling vibrations inside the joint due to the sliding resistance of the double offset constant velocity joint. This is transmitted to the vehicle body and causes discomfort to the passengers.

등속 조인트의 축력 감소를 위한 종래의 기술로는 영국 특허공보 GB 2347729 A호(공고일:2000. 9. 13)가 개시된 바 있다.Conventional techniques for reducing the axial force of constant velocity joints have been disclosed in GB 2347729 A (published date: Sep. 13, 2000).

도 2에 나타낸 것과 같이 추진축이 구동축(13)과 피동축(14)으로 구성되고 그 내부에 볼(15)을 축방향으로 설치하여 축방향 움직임이 가능하도록 구성된 것이다.As shown in FIG. 2, the propulsion shaft includes a driving shaft 13 and a driven shaft 14, and a ball 15 is installed in the axial direction therein to enable axial movement.

그러나, 이와 같은 종래 기술은 축력이 작게 작용하지만 구동축과 피동축사이에 있는 볼이 큰 회전력을 전달해야 하므로 축의 크기와 볼을 크기가 커야한다는 문제점이 있다.However, such a prior art has a problem that the axial force acts small but the ball between the driving shaft and the driven shaft must transmit a large rotational force, so that the size of the shaft and the ball must be large.

본 발명은 상기와 같은 문제점을 해소하기 위해 발명된 것으로, 더블 옵셋 등속조인트에서 미끄럼 저항을 감소시켜 차량의 진동 및 소음을 저감하며, 구름접촉에 의하여 조인트내부의 마찰에 의한 발열도 작아지게 함으로써 내구수명을 향상시킬수 있는 더블 옵셋 등속조인트를 제공하는데 있다.The present invention has been invented to solve the above problems, by reducing the sliding resistance in the double offset constant velocity joint to reduce the vibration and noise of the vehicle, durability by reducing the heat generated by friction in the joint by rolling contact It is to provide double offset constant velocity joint which can improve the service life.

도 1은 일반적인 더블 옵셋 등속조인트의 구성을 나타낸 단면도.1 is a cross-sectional view showing the configuration of a general double offset constant velocity joint.

도 2는 종래의 축력 저감형 등속조인트의 구성을 나타낸 단면도.2 is a cross-sectional view showing the configuration of a conventional axial force reduction constant velocity joint.

도 3, 5 는 본 발명에 따른 더블 옵셋 등속조인트의 구성을 나타낸 단면.3 and 5 are cross-sectional views showing the configuration of a double offset constant velocity joint according to the present invention.

도 4 는 본 발명에 따른 더블 옵셋 등속조인트의 외륜의 구성을 나타낸 단면.Figure 4 is a cross-sectional view showing the configuration of the outer ring of the double offset constant velocity joint according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 외륜 2 : 내륜1: outer ring 2: inner ring

3,4 : 트랙홈 5, 10, 15 : 볼3,4: Track groove 5, 10, 15: Ball

6 : 케이지 7 : 케이지의 외구면6: cage 7: outer surface of the cage

8 : 케이지 내구면 9 : 내륜의 외구면8: cage inner surface 9: outer surface of inner ring

11 : 리테이터 12 : 케이지 홀더11: retainer 12: cage holder

13 : 구동축 14 : 피동축13 drive shaft 14 driven shaft

이하 첨부된 도면 3에 의해 상세히 설명하면 다음과 같다.Hereinafter, described in detail with reference to the accompanying drawings 3 as follows.

본 발명에 따른 더블 옵셋 등속조인트의 특징은, 도 1에 도시된 일반적인 등속 조인트의 구성에서, 외륜(1)과 케이지(6)의 접촉부위를 변경한 것으로 외륜(1)과 케이지(6) 사이에 케이지 홀더(12)를 삽입하고, 외륜(1)의 접촉부위에는 리테이너(11) 안에 볼(10)을 축방향으로 여러 개를 설치하여 접촉하게 한다.A characteristic of the double offset constant velocity joint according to the present invention is that, in the configuration of the general constant velocity joint shown in FIG. The cage holder 12 is inserted into the cage, and a plurality of balls 10 are installed in the retainer 11 in the retainer 11 in contact with the outer ring 1.

케이지 홀더(12)의 내측에는 케이지(6)의 외구면(9)과 접하고 외륜(1)과 평행한 케이지 홀더(12) 외측에는 볼(10)과 접하게 된다.The inside of the cage holder 12 is in contact with the outer peripheral surface 9 of the cage 6 and the outside of the cage holder 12 parallel to the outer ring 1 is in contact with the ball 10.

이와 같이 구성된 더블 옵셋 등속조인트의 동작은 다음과 같다.The operation of the double offset constant velocity joint configured as described above is as follows.

차량의 트랜스 액슬에 장착된 더블 옵셋 등속조인트의 외륜(1)이 동력을 전달받아서 볼(5)과 볼트랙홈(3)(4)을 통하여 피동축으로 동력을 전달하여 차량의 바퀴가 구동하게 된다.The outer ring 1 of the double offset constant velocity joint mounted on the transaxle of the vehicle receives power and transmits power to the driven shaft through the ball 5 and the bolt rack grooves 3 and 4 so that the wheels of the vehicle are driven. do.

차량이 조향되거나 상하진동이 발생되면 조인트의 중심이 외륜(1)의 직선형 트랙홈(3)에서 축방향으로 움직이면서 차량의 변위를 흡수하게된다.When the vehicle is steered or a vertical vibration is generated, the center of the joint is moved axially in the linear track groove 3 of the outer ring 1 to absorb the displacement of the vehicle.

이때, 케이지(6)의 외구면(9)을 감싸고 있는 케이지 홀더(12)는 외륜(1)의 볼(10) 위를 구름접촉을 하며 축방향으로 움직인다.At this time, the cage holder 12 surrounding the outer circumferential surface 9 of the cage 6 moves in the axial direction while making a rolling contact on the ball 10 of the outer ring 1.

구름접촉 운동을 통해 축방향으로 움직이므로 슬라이딩에 의한 마찰력이 감소하여 미끄럼 저항과 축력 발생이 줄어들게 된다.Since it moves in the axial direction through the rolling contact motion, frictional force due to sliding is reduced, so that slip resistance and axial force are reduced.

이상의 설명에서 알 수 있듯이 본 발명에 따른 더블 옵셋 등속 조인트에 의하면 , 더블 옵셋 등속 조인트에서 발생되는 미끄럼 저항과 축력을 줄임으로서 차량의 진동 및 소음을 저감하며, 미끄럼 운동의 감소로 마찰에 의한 발열도 작아짐으로 내구수명을 향상시킬 수 있는 장점이 있다.As can be seen from the above description, according to the double offset constant velocity joint according to the present invention, the vibration resistance and noise of the vehicle are reduced by reducing the sliding resistance and the axial force generated in the double offset constant velocity joint, and the heat generation due to friction is also reduced by the sliding motion. There is an advantage to improve the durability life by becoming smaller.

Claims (2)

외륜(1)의 내면과, 내륜(2)의 외면에 각각 축방향으로 6개의 직선형 볼 트랙홈(3)(4)이 60도의 등각으로 형성되고, 상기 볼 트랙홈(3)(4)의 사이에는 6개의 볼(5)이 조립되며, 상기 볼(5)을 지지하고, 조인트가 절각을 이룰 때 상기볼(5)을 소정의 위치로 지지 안내하는 케이지(6)로 구성된 더블 옵셋 등속조인트에 있어서,Six linear ball track grooves 3 and 4 are formed at an angle of 60 degrees in the axial direction on the inner surface of the outer ring 1 and the outer surface of the inner ring 2, respectively. Six balls 5 are assembled therebetween, and a double offset constant velocity joint composed of a cage 6 supporting the balls 5 and guiding the balls 5 to a predetermined position when the joint is angled. To 외륜(1)과 케이지(6) 사이에 케이지 홀더(12)를 삽입하고, 케이지 홀더(12)와 외륜(1)의 접촉부위에는 리테이너(11)안에 볼(10)을 축방향으로 여러 개를 설치하고 볼은 외륜의 볼홈에서 회전은 가능하나 위치가 고정되는 것을 특징으로 하는 더블 옵셋 등속조인트.A cage holder 12 is inserted between the outer ring 1 and the cage 6, and a plurality of balls 10 are formed in the retainer 11 in the axial direction at the contact portion between the cage holder 12 and the outer ring 1. Double offset constant velocity joint, characterized in that the ball is installed in the ball groove of the outer ring, but the position is fixed. 청구항 1에서 도면 5와 같이 외륜(1)과 케이지(6) 사이에 케이지 홀더(12)를 삽입하고, 케이지 홀더(12)와 외륜(1)의 접촉부위에는 리테이너(11)안에 볼(10)을 축방향으로 여러 개를 설치하고 볼이 외륜의 접촉부위에서 회전하며 이동이 가능한 것을 특징으로 하는 더블 옵셋 등속조인트.5, the cage holder 12 is inserted between the outer ring 1 and the cage 6 as shown in FIG. 5, and the ball 10 is held in the retainer 11 at the contact portion between the cage holder 12 and the outer ring 1; Double offset constant velocity joint, characterized in that the installation of several in the axial direction and the ball can rotate and move at the contact portion of the outer ring.
KR1020020030585A 2002-05-31 2002-05-31 Anti axial force double offset constant velocity joint KR20030092770A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108087439A (en) * 2016-11-16 2018-05-29 株式会社三丰 Rotary transfer apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0388026A (en) * 1989-08-31 1991-04-12 Toshiba Corp Data processor
JPH0490727U (en) * 1990-12-26 1992-08-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0388026A (en) * 1989-08-31 1991-04-12 Toshiba Corp Data processor
JPH0490727U (en) * 1990-12-26 1992-08-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108087439A (en) * 2016-11-16 2018-05-29 株式会社三丰 Rotary transfer apparatus
CN108087439B (en) * 2016-11-16 2021-08-10 株式会社三丰 Rotation transmission device

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