KR100369058B1 - an universal joint shaft of vehicles - Google Patents
an universal joint shaft of vehicles Download PDFInfo
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- KR100369058B1 KR100369058B1 KR10-2000-0084333A KR20000084333A KR100369058B1 KR 100369058 B1 KR100369058 B1 KR 100369058B1 KR 20000084333 A KR20000084333 A KR 20000084333A KR 100369058 B1 KR100369058 B1 KR 100369058B1
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- Prior art keywords
- shaft
- tube
- convolut
- universal joint
- welding
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Classifications
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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
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/064—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
- F16D1/068—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving gluing, welding or the like
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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
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
- F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
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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
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
Abstract
본 발명은 자동차의 유니버설 조인트 샤프트에 관한 것으로, 로우어샤프트(3)의 상부와 어퍼샤프트(4)의 하부 4분선상에 축방향으로 홈들이 형성되고, 컨벌류트튜브(5)의 양단에는 이에 상응하는 돌출부들이 형성되어, 컨벌류트튜브(5)의 양단에 각각 로우어샤프트(3)와 어퍼샤프트(4)가 끼워졌을 때 상기 돌출부가 홈에 끼워진 상태가 되며, 이 상태에서 컨벌류트튜브(5)와 샤프트들의 연결부에 각각 1회씩의 전둘레용접(7,7′)이 실시된 구조로 이루어져 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a universal joint shaft of a motor vehicle, wherein grooves are formed in an axial direction on the upper quadrant of the lower shaft 3 and the lower quadrant of the upper shaft 4, and both ends of the convolute tube 5 are connected thereto. Corresponding protrusions are formed so that the protrusions are fitted into the grooves when the lower shaft 3 and the upper shaft 4 are fitted to both ends of the convolut tube 5, respectively. 5) and the connecting part of the shaft is composed of a one-time front circumferential welding (7, 7 ') is carried out.
따라서, 전둘레 용접 실시전에 가용접할 필요가 없으며, 용접불량에 의해 용접부가 파단되어도 어퍼샤프트(4)의 토오크가 컨벌류트튜브(5)를 통해 로우어샤프트(3)로 전달될 수 있게 되어 비상시에도 조향이 가능하게 된다.Therefore, it is not necessary to weld the welding before the whole circumference, and the torque of the upper shaft 4 can be transmitted to the lower shaft 3 through the convolut tube 5 even when the welding part is broken due to poor welding. Steering is also possible.
Description
본 발명은 자동차의 유니버설 조인트 샤프트에 관한 것으로, 특히 컨벌류트튜브와 로우어샤프트 및 어퍼샤프트 간의 용접공수가 줄어들고, 용접부가 파단되어도 조향작용이 가능하도록 된 자동차의 유니버설 조인트 샤프트에 관한 것이다.The present invention relates to a universal joint shaft of a motor vehicle, and more particularly, to a universal joint shaft of a motor vehicle capable of reducing a welding maneuver between a convolut tube and a lower shaft and an upper shaft, and enabling steering operation even when a weld is broken.
일반적으로 자동차의 스티어링 샤프트는 상단에 스티어링휠이 장착되어 운전자의 조향조작을 받아들이고, 하단에는 조향기어가 장착되어 이후 연결된 조향링키지들을 조작함으로써 조향작용이 일어날 수 있도록 되어 있다.In general, the steering shaft of the vehicle is equipped with a steering wheel at the top to receive the steering operation of the driver, and the steering gear is mounted at the bottom so that steering operation can be performed by manipulating the connected steering linkages.
상기 스티어링 샤프트와 조향기어는 차량의 레이아웃 특성에 따라 직접 연결되는 형식과 유니버설조인트를 매개로 연결되는 형식이 있는데, 유니버설조인트를 매개로 연결되면 조인트가 비틀림방향으로 어느 정도 변형될 수 있으므로 노면에서의 충격이 스티어링휠에 전달되는 것을 감소시킬 수 있는 잇점이 있어 현재 대부분의 차량에서 채택되고 있다.The steering shaft and the steering gear may be directly connected according to the layout characteristics of the vehicle and may be connected through a universal joint. When the steering shaft is connected through the universal joint, the joint may be deformed to some extent in the torsion direction. The advantage of reducing the transmission of shock to the steering wheel is currently adopted in most vehicles.
상기와 같은 유니버설 조인트 샤프트는 도 1에 도시된 바와 같이, 유니버설조인트(1)의 요크(2)에 로우어샤프트(3)가 연결되고, 이 로우어샤프트(3)에 컨벌류트튜브(5)가 연결되며, 이 컨벌류트튜브(5)에 어퍼샤프트(4)가 연결되는 구조로 이루어져 있다.As shown in FIG. 1, the universal joint shaft as described above has a lower shaft 3 connected to the yoke 2 of the universal joint 1, and a convolut tube 5 connected to the lower shaft 3. Is connected, and the upper shaft 4 is connected to the convolut tube 5.
따라서, 스티어링휠 조작력은 어퍼샤프트(4)→컨벌류트튜브(5)→로우어샤프트(3)→유니버설조인트(1)를 통하여 조향기어로 전달되며, 상기 컨벌류트튜브(5)는 충돌시 좌굴되어 운전자에게 전해지는 충격을 흡수하도록 되어 있다.Therefore, the steering wheel operating force is transmitted to the steering gear through the upper shaft (4) → the convolut tube (5) → the lower shaft (3) → the universal joint (1), and the convolut tube (5) is buckled upon collision. It is supposed to absorb the shock to the driver.
한편, 상기 컨벌류트튜브(5)와 어퍼샤프트(4)의 연결은 용접에 의하여 이루어지는데, 먼저 컨벌류트튜브(5)와 어퍼샤프트(4)가 서로 겹쳐진 부위의 중간부 상하(가용접부(6) ; 도 2참조)에 각각 가용접을 실시하고, 2차적으로 어퍼샤프트(4)와 컨벌류트튜브(5)의 단부가 겹치는 부위의 둘레 전체(전둘레용접부(7))에 용접을 행하여 컨벌류트튜브(5)와 어퍼샤프트(4)를 상호 고정한다.On the other hand, the connection between the convolut tube 5 and the upper shaft 4 is made by welding. First, the upper and lower portions of the middle portion of the portion where the convolut tube 5 and the upper shaft 4 overlap each other (weld portion 6). 2) welding is applied to the entire circumference (front circumferential weld 7) of the portion where the ends of the upper shaft 4 and the convolut tube 5 overlap with each other. The tube 5 and the upper shaft 4 are fixed to each other.
상기 로우어샤프트(3)와 컨벌류트튜브(5)의 하부도 동일한 방식으로 상호 연결된다.The lower shaft 3 and the lower portion of the convolut tube 5 are also interconnected in the same manner.
따라서, 샤프트들과 컨벌류트튜브의 연결부위에 가용접부(6,6′)가 4개소이고 전둘레용접부(7,7′)가 2개소로서 조립시의 작업공수가 많다는 문제점이 있었다.Therefore, there are problems in that the number of work welds at the time of assembling is high, with four welded parts 6 and 6 'at the joints of the shaft and the convolut tube and two welded parts 7 and 7' at the front end.
또한, 상기 샤프트들과 컨벌류트튜브의 연결부 단면은 모두 단순 원형으로 되어 있어서, 용접불량에 의하여 용접부(6,6′,7,7′)가 파단될 경우 조향력 전달이 불가능해지는 문제점이 있었다.In addition, since the cross sections of the connecting portions of the shafts and the convolut tube are all circular, there is a problem in that steering force transmission is impossible when the welding portions 6, 6 ', 7, and 7' are broken due to poor welding.
이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 조립시 용접작업수가 줄고, 용접부위가 파손되어도 컨벌류트튜브를 통하여 조향력을 전달할 수 있도록 된 자동차의 유니버설 조인트 샤프트를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in order to solve the above problems, the object of the present invention is to provide a universal joint shaft of a car that can reduce the number of welding work during assembly, and can transmit the steering force through the convolut tube even if the welding part is damaged. have.
도 1은 종래 기술에 따른 유니버설 조인트 샤프트의 단면도,1 is a cross-sectional view of a universal joint shaft according to the prior art,
도 2는 도 1의 A-A선 단면도,2 is a cross-sectional view taken along the line A-A of FIG.
도 3은 본 발명에 따른 유니버설 조인트 샤프트의 단면도,3 is a cross-sectional view of the universal joint shaft according to the present invention,
도 4는 도 3의 B-B선 단면도이다.4 is a cross-sectional view taken along the line B-B in FIG.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1 : 유니버설조인트, 2 : 요크,1: universal joint, 2: yoke,
3 : 로우어샤프트, 4 : 어퍼샤프트,3: lower shaft, 4: upper shaft,
4a : 홈, 5 : 컨벌류트튜브,4a: home, 5: convolute tube,
5a : 돌출부, 6 : 가용접부,5a: protrusion, 6: weldable portion,
7 : 전둘레용접부.7: All around welding part.
상기와 같은 목적을 달성하기 위한 본 발명은, 로우어샤프트와 어퍼샤프트에 홈이 형성되고, 컨벌류트튜브에 돌출부가 형성되어, 이 돌출부가 상기 홈에 끼워지는 상태로 컨벌류트튜브 양단에 로우어샤프트와 어퍼샤프트가 끼워진후, 각각의 연결부에 전둘레 용접이 1회 실시된 구조로 되어 있다.According to the present invention for achieving the above object, a groove is formed in the lower shaft and the upper shaft, a protrusion is formed in the convolute tube, and the protrusion is lowered at both ends of the convolute tube with the protrusion fitted into the groove. After the shaft and the upper shaft are fitted, each connecting portion is welded once all around.
따라서, 1차 가용접 작업이 필요 없게 되고, 용접부가 파단되어도 홈과 돌출부의 결합상태에 의하여 조향력전달이 가능하다.Therefore, the primary welding operation is not necessary, and even if the weld is broken, the steering force can be transmitted by the coupling state of the groove and the protrusion.
이하, 본 발명을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.
도 3은 본 발명에 따른 자동차의 유니버설 조인트 샤프트의 단면도이고, 도 4는 어퍼샤프트와 컨벌류트튜브의 연결부 단면도로서, 본 발명은 조향기어와 연결된 유니버설조인트(1)의 요크(2)에 로우어샤프트(3)가 연결되고, 이 로우어샤프트(3)와 어퍼샤프트(4)가 컨벌류트튜브(5)의 양단에 연결된 구조는 종래와 동일하다.3 is a cross-sectional view of the universal joint shaft of the vehicle according to the present invention, Figure 4 is a cross-sectional view of the connection portion of the upper shaft and the convelute tube, the present invention is lowered to the yoke (2) of the universal joint (1) connected to the steering gear The shaft 3 is connected, and the structure in which the lower shaft 3 and the upper shaft 4 are connected to both ends of the convolut tube 5 is the same as before.
단, 도 4에 도시된 바와 같이, 컨벌류트튜브(5)의 상부에 끼워지는 어퍼샤프트(4)의 하부 둘레 4분선상에에 축방향으로 길이가 긴 홈(4a)이 형성되고, 이 홈(4a)들에 대응되는 컨벌류트튜브(5)상의 위치에는 중심을 향하여 오목하게 프레스코킹된 돌출부(5a)들이 형성되어, 컨벌류트튜브(5)에 어퍼샤프트(4)가 끼워졌을 때 상기 홈(4a)에 돌출부(5a)가 끼워지는 구조로 되어 있으며, 이후 컨벌류트튜브(5)의 단부와 어퍼샤프트(4)의 접촉부위를 1회 전둘레용접(전둘레용접부 7)하는 것으로 컨벌류트튜브(5)와 어퍼샤프트(4)의 연결공정이 완료된다.However, as shown in Fig. 4, a groove 4a long in the axial direction is formed on the lower circumference quadrant of the upper shaft 4 fitted to the upper portion of the convolut tube 5, and this groove is formed. At the position on the convolut tube 5 corresponding to the concave tubes 4, projections 5a concave pressed to the center are formed, so that the groove when the upper shaft 4 is fitted to the convolut tube 5 The projecting portion 5a is fitted to (4a), and then the convolut is formed by welding the end of the convolut tube 5 and the contact portion of the upper shaft 4 once in a full circumferential welding (front circumferential welding portion 7). The connection process of the tube 5 and the upper shaft 4 is completed.
상기 로우어샤프트(3)와 컨벌류트튜브(5)의 연결도 동일한 방식으로 이루어진다.The lower shaft 3 and the convolut tube 5 are connected in the same manner.
따라서, 컨벌류트튜브(5)의 양단에 로우어샤프트(3)와 어퍼샤프트(5)를 끼우는 작업만으로 컨벌류트튜브(5)와 로우어샤프트(3) 및 어퍼샤프트(5)가 가고정상태가 되므로 종래와 같이 1차로 4개소에 가용접을 실시할 필요가 없게 된다.Therefore, the convolut tube 5, the lower shaft 3 and the upper shaft 5 are temporarily fixed only by fitting the lower shaft 3 and the upper shaft 5 to both ends of the convolut tube 5. Therefore, it is not necessary to perform welding welding at four places as 1st conventionally.
또한, 용접불량으로 전둘레용접부(7,7′)가 파단되어도 홈(4a)과 돌출부(5a)는 결합상태를 유지하므로 어퍼샤프트(4)에서 컨벌류트튜브(5)로 토오크가 전달될 수 있고, 마찬가지로 컨벌류트튜브(5)에서 로우어샤프트(3)로도 토오크가 전달될수 있다.In addition, even when the front circumferential weld 7, 7 ′ is broken due to poor welding, torque can be transmitted from the upper shaft 4 to the convolut tube 5 because the groove 4 a and the protrusion 5 a remain coupled. Similarly, torque can also be transmitted from the convolut tube 5 to the lower shaft 3.
이상 설명한 바와 같이 본 발명에 따르면, 컨벌류트튜브의 양단에 어퍼샤프트와 로우어샤프트를 끼우고 전둘레 용접을 2회 실시하는 것으로 컨벌류트튜브와 어퍼샤프트 및 로우어샤프트의 연결작업이 완료되므로 작업공수가 줄며, 또한, 컨벌류트튜브와 각 샤프트 들의 사이에는 홈과 돌출부의 결합이 이루어져 있으므로 용접불량에 의해 용접부가 파단되어도 토오크의 전달이 가능하여 조작작용이 이루어질 수 있게 되는 효과가 있다.As described above, according to the present invention, by connecting the upper shaft and the lower shaft to both ends of the convolut tube and performing the full circumferential welding twice, the operation of the convolut tube and the upper shaft and the lower shaft is completed. Since the number of maneuvers is reduced, and the grooves and the protrusions are coupled between the convolut tube and the respective shafts, the torque can be transmitted even when the welds are broken due to poor welding, thereby enabling the operation to be performed.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0084333A KR100369058B1 (en) | 2000-12-28 | 2000-12-28 | an universal joint shaft of vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0084333A KR100369058B1 (en) | 2000-12-28 | 2000-12-28 | an universal joint shaft of vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020054998A KR20020054998A (en) | 2002-07-08 |
| KR100369058B1 true KR100369058B1 (en) | 2003-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2000-0084333A KR100369058B1 (en) | 2000-12-28 | 2000-12-28 | an universal joint shaft of vehicles |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100369058B1 (en) |
-
2000
- 2000-12-28 KR KR10-2000-0084333A patent/KR100369058B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020054998A (en) | 2002-07-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20090105 Year of fee payment: 7 |
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| LAPS | Lapse due to unpaid annual fee |