KR20030025375A - The sealing structure of constant velocity joint in vehicle - Google Patents

The sealing structure of constant velocity joint in vehicle Download PDF

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Publication number
KR20030025375A
KR20030025375A KR1020010058225A KR20010058225A KR20030025375A KR 20030025375 A KR20030025375 A KR 20030025375A KR 1020010058225 A KR1020010058225 A KR 1020010058225A KR 20010058225 A KR20010058225 A KR 20010058225A KR 20030025375 A KR20030025375 A KR 20030025375A
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KR
South Korea
Prior art keywords
boot
shaft
constant velocity
velocity joint
outer ring
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Application number
KR1020010058225A
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Korean (ko)
Inventor
한용희
Original Assignee
현대자동차주식회사
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Priority to KR1020010058225A priority Critical patent/KR20030025375A/en
Publication of KR20030025375A publication Critical patent/KR20030025375A/en

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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
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
    • 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
    • F16D2003/22316—Means for fastening or attaching the bellows or gaiters
    • 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
    • F16D2300/12—Mounting or assembling

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

PURPOSE: An airtight structure for constant velocity joint of a vehicle is provided to improve airtight of a boot and to reduce coupling process of the boot. CONSTITUTION: An airtight structure for constant velocity joint of vehicle includes a boot(3). A first shaft(1) forms one end of a propeller shaft. The boot is covered between the first shaft and an outer ring(2a) of a second shaft(2) by a circular clip to maintain airtight. One end of the boot is fixed to the first shaft by a fixing pin. The other end of the boot is fixed to the outer ring of the second shaft by a boot band(4). The boot band generates pressurizing force when deforming. Thereby, coupling process is reduced by embedding the boot band in the boot. Airtight is maintained by forming many deformation portions of the boot.

Description

차량용 등속조인트의 기밀구조{The sealing structure of constant velocity joint in vehicle}The sealing structure of constant velocity joint in vehicle

본 발명은 차량용 등속조인트의 기밀구조에 관한 것으로, 보다 상세하게는 부트에 체결용 밴드를 내장시켜 부품과 조립공정을 줄이면서도 다중 기밀부를 형성할 수 있도록 된 차량용 등속조인트의 기밀구조에 관한 것이다.The present invention relates to an airtight structure of a vehicular constant velocity joint, and more particularly, to a gastight structure of a vehicular constant velocity joint in which a multiple band can be formed while reducing a part and an assembly process by embedding a fastening band in a boot.

일반적으로 기관의 동력은 변속기를 거쳐 추진축에 의해 뒷차축으로 전달되며, 변속기는 기관 및 클러치와 함께 프레임에 설치되어 있고, 뒷차축은 섀시스프링을 사이에 두고 차체에 설치되어 있으므로 노면에서 오는 충격이나 적재하중의 변화에 따라 상하, 전후로 움직인다. 따라서 기관의 동력을 원활하게 뒷차축에 전달하기 위해 추진축의 양쪽 끝에 자재이음과추진축의 앞쪽 또는 중간부분에 슬리이브요크를 설치한다.Generally, the engine power 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 clutch, and the rear axle is installed on the body with the chassis spring in between, so that the impact or load from the road surface It moves up and down and back and forth according to the change of load. Therefore, in order to smoothly transfer engine power to the rear axle, the sleeve yoke is installed at the front or middle part of the material joint and the propulsion shaft at both ends of the propulsion shaft.

여기서, 상기 자재이음은 두축이 일직선상에 있지 않고, 어떤 각도를 가진 두개의 축사이에 동력을 전달할 때 사용되는조인트로써, 구조에 따라 프렉시블조인트, 카르단조인트, 트렉터조인트, 등속조인트로 분류되는 바, 상기 등속조인트(Constant Velocity Joint)는 앞바퀴 구동차나 전륜 구동차에서 종감속장치에 연결된 구동차축에 설치되어 바퀴의 동력전달용으로 사용되며, 동력전달시 조인트의 각 속도변동을 없애도록(등속하도록) 개량한 조인트를 일컫는다.Here, the material joint is a joint used when transferring power between two axes having a certain angle without two axes in a straight line, and is classified into a flexible joint, a cardan joint, a tractor joint, and a constant velocity joint according to a structure. The constant velocity joint (Constant Velocity Joint) is installed on the drive axle connected to the longitudinal deceleration device in the front wheel drive car or front wheel drive car is used for power transmission of the wheel, so as to eliminate each speed variation of the joint during power transmission (constant speed Refers to an improved joint.

이러한 등속조인트는 제1도에 도시된 바와 같이, 추진축의 일단부를 형성하는 제1샤프트(1)와, 이 샤프트(1)가 삽입 관통되어 원형클립을 매개로 고정되는 외륜(2a)이 형성된 제2샤프트(2)로 이루어지되, 상기 제1·2샤프트(1,2)의 결합부에는 내부의 기밀을 유지하도록 일단이 고정핀을 매개로 제1샤프트(1)에 고정되고 타단이 가압력을 발생하는 부트밴드(4)를 매개로 제2샤프트(2)의 외륜(2a)에 고정되는 부트(3)가 구비되어진다.As shown in FIG. 1, the constant velocity joint includes a first shaft 1 forming one end of the propulsion shaft and an outer ring 2a through which the shaft 1 is inserted and fixed through a circular clip. 2 shafts (2), one end of which is fixed to the first shaft (1) via a fixing pin and the other end of the pressing force so as to maintain the airtight inside the coupling portion of the first and second shafts (1,2) A boot 3 fixed to the outer ring 2a of the second shaft 2 is provided via the generated boot band 4.

그러나, 이와 같이 부트(3)는 제1샤프트(1)에 그 일단을 고정한 다음, 제2샤프트(2)의 외륜(2a)쪽으로 결합하여 부트밴드(4)를 가 결합시킨 후, 상기 부트밴드(4)의 일단을 특수 공구를 이용하여 변형시켜 부트(3)를 제2샤프트(2)의 외륜(2a)과 밀착되도록 해 기밀을 유지하게 되므로 그 체결 공정이 4단계 과정 즉, 부트(3)의 일단을 제1샤프트(10에 그 일단을 고정하는 단계와, 상기 부트(3)의 타단을 제2샤프트(2)의 외륜(2a)에 결합시키는 단계, 상기 부트(3)에 부트밴드(4)를 가 결합시키는 단계 및 상기 부트밴드(4)를 공구를 이용하여 체결하는 단계로 단순한 체결구조에 비해 그 조립공정이 복잡함은 물론 상기 부트밴드(4)도 한쪽 부위를 변형시켜 제2샤프트(2)의 외륜(2a) 전체 부위에 밀착되도록 하여 그 기밀성도 완벽하지 못하는 단점이 있게 된다.However, the boot 3 secures one end to the first shaft 1 in this way, then couples the boot band 4 to the outer ring 2a of the second shaft 2 to couple the boot band to the boot band. One end of (4) is deformed by using a special tool so that the boot (3) is in close contact with the outer ring (2a) of the second shaft (2) to maintain the airtight, the fastening process is a four-step process, that is, the boot (3) Fixing one end of the first shaft 10 to the first shaft 10, and engaging the other end of the boot 3 to the outer ring 2a of the second shaft 2. (4) is a step of fastening and the boot band (4) to fasten using a tool as compared to a simple fastening structure, as well as the complicated assembly process, as well as the boot band (4) by deforming one part of the second Since the outer ring (2a) of the shaft 2 is in close contact with the entire airtight there is a disadvantage that is not perfect.

이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, 이물질의 침투를 방지하기 위해 감싸 여지는 부트의 체결 공정을 줄이면서도 부트의 기밀성을 향상함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above, and has an object of improving the airtightness of the boot while reducing the fastening process of the boot wrapped to prevent infiltration of foreign matter.

상기와 같은 목적을 달성하기 위한 본 발명은, 추진축의 일 단부를 형성하는 제1샤프트가 삽입되어 원형클립을 매개로 고정되는 제2샤프트의 외륜사이에 기밀을 유지하도록 부트가 씌워지되, 이 부트는 일단이 고정핀을 매개로 제1샤프트에 고정되고 타단에 내장되어 가압력을 발생하는 부트밴드를 매개로 제2샤프트의 외륜에 고정되어진 것을 특징으로 한다.The present invention for achieving the above object, the first shaft forming one end of the propulsion shaft is inserted into the boot so as to maintain the airtightness between the outer ring of the second shaft is fixed through the circular clip, the boot It is characterized in that one end is fixed to the outer ring of the second shaft via a boot band that is fixed to the first shaft via a fixing pin and built into the other end to generate a pressing force.

도 1은 종래에 따른 차량용 등속조인트의 기밀구조 단면도1 is a cross-sectional view of an airtight structure of a constant velocity joint for a vehicle according to the related art.

도 2는 본 발명에 따른 차량용 등속조인트의 기밀구조 단면도2 is a cross-sectional view of an airtight structure of a constant velocity joint for a vehicle according to the present invention.

도 3은 본 발명에 따른 등속조인트의 기밀구조의 결합 상태도3 is a state of engagement of the airtight structure of the 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 : 제1샤프트2 : 제2샤프트1: 1st shaft 2: 2nd shaft

2a : 외륜2a' : 안착홈2a: Outer ring 2a ': Seating groove

3 : 부트3a : 안착단3: boot 3a: seating end

4 : 부트밴드4: bootband

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 차량용 등속조인트의 기밀구조 단면도를 도시한 것인바, 본 발명은 추진축의 일단부를 형성하는 제1샤프트(1)가 삽입되어 원형클립을 매개로 고정되는 제2샤프트(2)의 외륜(2a)사이에 기밀을 유지하도록 부트(3)가 씌워지되, 이 부트(3)는 일단이 고정핀을 매개로 제1샤프트(1)에 고정되고 타단에 내장되어 변형 시 가압력을 발생하는 부트밴드(4)를 매개로 제2샤프트(2)의 외륜(2a)에 고정되어진다.Figure 2 shows a cross-sectional view of the airtight structure of the constant velocity joint for a vehicle according to the present invention, the present invention is a second shaft 2 is inserted into the first shaft (1) forming one end of the propulsion shaft is fixed via a circular clip (2) Boot (3) is covered to maintain the airtight between the outer ring (2a) of the (3), one end of the boot (3) is fixed to the first shaft (1) via a fixing pin and built into the other end to apply the pressing force during deformation It is fixed to the outer ring 2a of the second shaft 2 via the generated boot band 4.

여기서, 상기 부트밴드(4)는 제2샤프트(2)의 외륜(2a)을 감싸는 부트(3)의 안착단(3a)내에 삽입되되, 상기 외륜(2a)의 끝단부에 연속되는 외경부위를 가압하도록 대략 기역자 형상을 이루게 된다.Here, the boot band (4) is inserted into the seating end (3a) of the boot (3) surrounding the outer ring (2a) of the second shaft (2), the outer diameter portion continuous to the end of the outer ring (2a) It is roughly shaped like a presser to pressurize.

이에 따라, 본 발명은 부트(3)의 일단을 제1샤프트(1)에 그 일단을 고정하는 단계와, 상기 부트(3)의 타단을 제2샤프트(2)의 외륜(2a)에 결합시키는 단계 및 상기 부트밴드(4)를 공구를 이용하여 체결하는 단계로 전술한 종래의 경우에 비해 부트밴드(4)를 제2샤프트(2)의 외륜(2a)으로 가 결합시키는 단계 없이 바로 부트밴드(4)를 가압시켜 조립단계가 전술한 종래의 경우에 비해 축소되어지는 특징이 있게 된다.Accordingly, the present invention is to secure one end of the boot (3) to the first shaft (1), and to couple the other end of the boot (3) to the outer ring (2a) of the second shaft (2) And a step of fastening the boot band 4 using a tool, without booting the boot band 4 to the outer ring 2a of the second shaft 2 as compared with the conventional case described above. The pressing step (4) is characterized in that the assembling step is reduced compared to the conventional case described above.

또한, 본 발명의 부트밴드(4)는 도 3에 도시된 바와 같이 프레스 지그(P)를 3방향으로 위치시켜 동시에 가압하게 되면, 상기 제2샤프트(2)의 외륜(2a)으로 위치된 부트밴드(4)부위가 부트(3)의 안착단(3a)과 함께 함몰되면서 제2샤프트(2)의 외륜(2a)과 3곳에서 밀착되므로 결국, 상기 부트밴드(4)와 부트(3)의 압착부위(K)에 대한 기밀성도 더욱 향상되어지게 된다.In addition, when the boot band 4 of the present invention is pressurized at the same time by pressing the press jig (P) in three directions as shown in Figure 3, the boot located in the outer ring (2a) of the second shaft (2) As the band 4 is recessed together with the seating end 3a of the boot 3, the band 4 closely contacts the outer ring 2a of the second shaft 2 at three places, so that the boot band 4 and the boot 3 are eventually closed. The tightness of the crimping portion (K) of the will also be further improved.

여기서, 상기 부트(3)와 부트밴드(4)가 프레스 지그(P)에 의해 압착되는 부위(K)는 그 체결력을 유지하면서 기밀유지를 향상하기 위해 서로 대칭적이거나 또는 비대칭으로 여러 곳에 형성되어 짐은 물론이다.Here, the portion (K) where the boot (3) and the boot band (4) is pressed by the press jig (P) is formed in several places symmetrically or asymmetrically with each other to improve the airtightness while maintaining the fastening force Jim is, of course.

이상 설명한 바와 같이 본 발명에 의하면, 부트에 부트밴드를 내장시켜 부트의 체결 공정을 줄이면서도 부트의 변형부위를 다수지점에 형성시켜 완벽한 기밀성을 유지할 수 있는 효과가 있게 된다.As described above, according to the present invention, the boot band is embedded in the boot, thereby reducing the fastening process of the boot, and forming a deformation part of the boot at many points, thereby maintaining perfect airtightness.

Claims (5)

추진축의 일단부를 형성하는 제1샤프트(1)가 삽입되어 원형클립을 매개로 고정되는 제2샤프트(2)의 외륜(2a)사이에 기밀을 유지하도록 부트(3)가 씌워지되, 이 부트(3)는 일단이 고정핀을 매개로 제1샤프트(1)에 고정되고 타단에 내장되어 변형 시 가압력을 발생하는 부트밴드(4)를 매개로 제2샤프트(2)의 외륜(2a)에 고정되어진 차량용 등속조인트의 기밀구조.The boot 3 is covered to maintain the airtightness between the outer ring 2a of the second shaft 2, which is inserted through the first clip 1, which forms one end of the propulsion shaft, and is fixed via a circular clip. 3) One end is fixed to the outer shaft (2a) of the second shaft (2) via a boot band (4) that is fixed to the first shaft (1) via a fixing pin and built in the other end to generate a pressing force during deformation Sealed structure of the constant velocity joint for vehicle. 제 1항에 있어서, 상기 부트밴드(4)는 제2샤프트(2)의 외륜(2a)을 감싸는 부트(3)의 안착단(3a)내에 삽입되되, 상기 외륜(2a)의 끝단부에 연속되는 외경부위를 가압하도록 대략 기역자 형상을 이루는 것을 특징으로 하는 차량용 등속조인트의 기밀구조.2. The boot band (4) according to claim 1, wherein the boot band (4) is inserted into a seating end (3a) of the boot (3) surrounding the outer ring (2a) of the second shaft (2) and is continuous at the end of the outer ring (2a). The airtight structure of a constant velocity joint for a vehicle, characterized in that to form an approximate tracer shape to press the outer diameter portion. 제 1항에 있어서, 상기 부트밴드(4)는 프레스 지그(P)를 통해 여러 부위(K)가 압착되어 부트(3)를 고정하는 것을 특징으로 하는 차량용 등속조인트의 기밀구조.2. The airtight structure of a constant velocity joint for a vehicle according to claim 1, wherein the boot band (4) fixes various parts (K) by pressing the jig (P) to fix the boot (3). 제 3항에 있어서, 상기 부트밴드(4)의 압착부위(K)는 서로 대칭을 이루는 것을 특징으로 하는 차량용 등속조인트의 기밀구조.4. The airtight structure of a constant velocity joint for a vehicle according to claim 3, wherein the crimping portions (K) of the boot band (4) are symmetric with each other. 제 3항에 있어서, 상기 부트밴드(4)의 압착부위(K)는 서로 비대칭을 이루는 것을 특징으로 하는 차량용 등속조인트의 기밀구조.4. The airtight structure of a constant velocity joint for a vehicle according to claim 3, wherein the crimping portions (K) of the boot band (4) are asymmetric with each other.
KR1020010058225A 2001-09-20 2001-09-20 The sealing structure of constant velocity joint in vehicle KR20030025375A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0671523A (en) * 1992-08-27 1994-03-15 Ntn Corp Boot fixing device for constant velocity universal joint
KR19990074498A (en) * 1998-03-11 1999-10-05 배길훈 Ring Clamp Integrated Boots
KR19990074499A (en) * 1998-03-11 1999-10-05 배길훈 Boots with clamp for swaging
JP2000310233A (en) * 1999-04-27 2000-11-07 Showa Corp Sealing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0671523A (en) * 1992-08-27 1994-03-15 Ntn Corp Boot fixing device for constant velocity universal joint
KR19990074498A (en) * 1998-03-11 1999-10-05 배길훈 Ring Clamp Integrated Boots
KR19990074499A (en) * 1998-03-11 1999-10-05 배길훈 Boots with clamp for swaging
JP2000310233A (en) * 1999-04-27 2000-11-07 Showa Corp Sealing device

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