KR20070014326A - Torsion beam of coupled torsion axle suspension - Google Patents

Torsion beam of coupled torsion axle suspension Download PDF

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Publication number
KR20070014326A
KR20070014326A KR1020050068847A KR20050068847A KR20070014326A KR 20070014326 A KR20070014326 A KR 20070014326A KR 1020050068847 A KR1020050068847 A KR 1020050068847A KR 20050068847 A KR20050068847 A KR 20050068847A KR 20070014326 A KR20070014326 A KR 20070014326A
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KR
South Korea
Prior art keywords
torsion beam
torsion
suspension
ctba
coupled
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Application number
KR1020050068847A
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Korean (ko)
Inventor
김재훈
김상대
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현대자동차주식회사
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Priority to KR1020050068847A priority Critical patent/KR20070014326A/en
Publication of KR20070014326A publication Critical patent/KR20070014326A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/051—Trailing arm twist beam axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
    • B60G9/04—Resilient suspensions of a rigid axle or axle housing for two or more wheels the axle or housing not being pivotally mounted on the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/012—Hollow or tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining
    • B60G2206/8201—Joining by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A torsion beam of a coupled torsion beam axle suspension is provided to improve welding quality by welding a tube type end of the torsion beam into a trailing arm, and to cut down expenses by connecting the trailing arms with one torsion beam. A torsion beam(10) of a coupled torsion beam axle suspension(11) is installed in a rear wheel of a vehicle, and both tube type ends of the torsion beam are combined with trailing arms(13) by welding. A longitudinal center of the tube type end of the torsion beam is recessed with V-shape, and the section is linearly increased at both sides. A welding portion(15) of the trailing arm is welded into the torsion beam with the flat section, and the number of parts is reduced by connecting the trailing arms of the coupled torsion beam axle suspension with one torsion beam.

Description

ＣＴＢＡ 서스펜션의 토션빔{TORSION BEAM OF COUPLED TORSION AXLE SUSPENSION}TORSION BEAM OF COUPLED TORSION AXLE SUSPENSION}

도 1은 종래 기술에 따른 후륜 현가장치의 트레일링 암과 V형 빔의 결합을 도시한 도면.1 shows a coupling of a trailing arm and a V-shaped beam of a rear wheel suspension according to the prior art.

도 2는 도 1의 저면도.2 is a bottom view of FIG. 1.

도 3은 도 1의 트레일링 암과 V형 빔의 용접 결합을 도시한 요부도면.3 is a main view showing a welded joint of the trailing arm and the V-shaped beam of FIG. 1;

도 4는 본 발명의 바람직한 실시예에 따른 CTBA 서스펜션의 토션빔의 장착을 도시한 도면.4 illustrates the mounting of a torsion beam of a CTBA suspension in accordance with a preferred embodiment of the present invention.

도 5는 도 4의 저면도.5 is a bottom view of FIG. 4.

도 6은 도 4의 토션빔을 도시한 도면.FIG. 6 illustrates the torsion beam of FIG. 4. FIG.

도 7은 도 4의 CTBA 서스펜션의 토션빔의 장착부의 요부도면.7 is an essential part view of a mounting portion of the torsion beam of the CTBA suspension of FIG. 4;

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10...토션빔 11...CTBA 서스펜션10 ... torsion beam 11 ... CTBA suspension

13...트레일링 암 15...용접부13.Trailing arm 15 ... Welding

본 발명은 CTBA 서스펜션의 토션빔에 관한 것으로, 보다 상세하게는 CTBA 서스펜션의 트레일링 암 간을 연결하는 토션빔의 용접부를 곡률이 없는 평면 용접이 가능하도록 하며, 하나의 부재로 이루어진 토션빔으로 결합되도록 함으로써, 용접 품질의 향상 및 부품 소요비용 절감이 가능하도록 하는 CTBA 서스펜션의 토션빔에 관한 것이다. The present invention relates to a torsion beam of a CTBA suspension, and more particularly, to weld the torsion beam of the torsion beam connecting the trailing arms of the CTBA suspension without curvature, coupled to the torsion beam consisting of one member By doing so, it relates to a torsion beam of a CTBA suspension that enables improved welding quality and reduced component cost.

일바적으로 차량의 후륜 현가장치에는 트레일링 암에 V형 빔(BEAM)이 결합되어 구성된다.In general, the rear suspension of the vehicle is configured by coupling a V-beam (BEAM) to the trailing arm.

도 1은 종래 기술에 따른 후륜 현가장치의 트레일링 암과 V형 빔의 결합을 도시한 도면이고, 도 2는 도 1의 저면도이며, 도 3은 도 1의 트레일링 암과 V형 빔의 용접 결합을 도시한 요부도면이다.1 is a view showing the coupling of the trailing arm and the V-shaped beam of the rear wheel suspension according to the prior art, Figure 2 is a bottom view of Figure 1, Figure 3 is a view of the trailing arm and V-shaped beam of Figure 1 A main part drawing showing a welded joint.

도 1 내지 도 3에 도시된 바와 같이, 종래 후륜 현가 장치의 트레일링 암(1)과 V형 빔(3)의 결합은, 결합부분이 곡률이 형성되며, 이러한 곡률이 형성된 부분을 용접으로 결합하도록 한다. As shown in FIGS. 1 to 3, in the coupling of the trailing arm 1 and the V-beam 3 of the conventional rear wheel suspension device, the coupling portion is formed with curvature, and the portion where the curvature is formed is welded. Do it.

즉, 종래 후륜 현가 장치의 트레일림 암(1)과 V형 빔(3)의 결합 부분(5)은 곡률이 형성되어 용접시에 용접 품질이 저하될 수 있는 문제점이 있다. 그리고, 종래 V형 빔(3)은 다수개의 부품이 결합된 것으로서, 용접 공수가 많아지며, 다수개의 부품 결합에 따른 과다한 중량의 문제점이 있다.That is, the coupling portion 5 of the trail rim arm 1 and the V-shaped beam 3 of the conventional rear wheel suspension has a problem that the curvature is formed, which may lower the welding quality during welding. In addition, the conventional V-beam (3) is a combination of a plurality of parts, the number of welding is increased, there is a problem of excessive weight due to the combination of a plurality of parts.

본 발명은 상기 전술한 바와 같은 문제점들을 해결하기 위해 창출된 것으로서, CTBA 서스펜션의 트레일링 암 간을 튜브 타입의 토션빔을 사용하여 평면 용접 이 가능하도록 하며, 하나의 부재로 이루어진 토션빔으로 결합되도록 함으로써, 용접 품질의 향상 및 부품 소요비용 절감이 가능하도록 하는 CTBA 서스펜션의 토션빔을 제공하는데 그 목적이 있다.The present invention has been made to solve the above-described problems, to allow the planar welding between the trailing arms of the CTBA suspension using a tube-type torsion beam, to be combined into a torsion beam consisting of one member Accordingly, the object of the present invention is to provide a torsion beam of a CTBA suspension which enables to improve welding quality and reduce component cost.

상기 목적을 달성하기 위한 본 발명의 CTBA 서스펜션의 토션빔은, 차량 후륜에 장착되는 CTBA(COUPLED TORSION AXLE) 서스펜션의 토션빔에 있어서, 상기 토션빔의 양단은 튜브 타입으로 형성되어 상기 CTBA 서스펜션의 트레일링 암에 용접 결합되며, 그 길이 방향의 중앙부는 일측으로 인입되어 형성되는 것을 특징으로 한다.The torsion beam of the CTBA suspension of the present invention for achieving the above object is a torsion beam of a CTBA (COUPLED TORSION AXLE) suspension mounted on the rear wheel of the vehicle, both ends of the torsion beam is formed of a tube type trail of the CTBA suspension It is welded to the ring arm, characterized in that the central portion of the longitudinal direction is formed to be drawn to one side.

본 발명에 있어서, 상기 토션빔은 고장력강의 재질로 구비됨을 특징으로 한다.In the present invention, the torsion beam is characterized in that it is provided with a material of high tensile strength steel.

본 발명에 있어서, 상기 토션빔은 튜브 형상으로 구비되며, 그 길이 방향의 중앙부는 일측으로 인입되어 V형상으로 이루며, 중앙에서 양단측으로 단면이 선형적으로 커지도록 구비되는 것을 특징으로 한다.In the present invention, the torsion beam is provided in a tube shape, the central portion of the longitudinal direction is drawn into one side to form a V shape, characterized in that the cross section is provided to be linearly enlarged from the center to both ends.

본 발명에 있어서, 상기 토선빔은 상기 트레일링 암에 평면 형상으로 용접 결합되는 것을 특징으로 한다.In the present invention, the tomb beam is welded to the trailing arm in a planar shape.

이하 본 발명의 바람직한 실시예에 따른 CTBA 서스펜션의 토션빔을 첨부된 도면을 참조하여 상세히 설명한다. 그러나 본 발명은 이하에서 개시되는 실시예에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예는 본 발명의 개시가 완전하도록 하며, 통상의 지식을 가진자에게 발명의 범주를 완전 하게 알려주기 위해 제공되는 것이다.Hereinafter, a torsion beam of a CTBA suspension according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention and to those skilled in the art to fully understand the scope of the invention. It is provided to inform you.

도 4는 본 발명의 바람직한 실시예에 따른 CTBA 서스펜션의 토션빔의 장착을 도시한 도면이고, 도 5는 도 4의 저면도이며, 도 6은 도 4의 토션빔을 도시한 도면이고, 도 7은 도 4의 CTBA 서스펜션의 토션빔의 장착부의 요부도면이다.4 is a view showing the mounting of the torsion beam of the CTBA suspension according to a preferred embodiment of the present invention, Figure 5 is a bottom view of Figure 4, Figure 6 is a view showing the torsion beam of Figure 4, Figure 7 4 is a main view of a mounting portion of the torsion beam of the CTBA suspension of FIG. 4.

도 4 내지 도 7에 도시된 바와 같이, 본 발명에 따른 CTBA 서스펜션의 토션빔(10)은, 차량 후륜에 장착되는 CTBA(COUPLED TORSION AXLE) 서스펜션의 토션빔에 관한 것으로서, 토션빔(10)의 양단은 튜브 타입으로 형성되어 상기 CTBA 서스펜션(11)의 트레일링 암(13)에 용접 결합되며 그 길이 방향으로는 중앙이 일 측으로 인입되어 형성된다.4 to 7, the torsion beam 10 of the CTBA suspension according to the present invention relates to the torsion beam of the CTBA (COUPLED TORSION AXLE) suspension mounted on the vehicle rear wheel, Both ends are formed in a tube type and are welded to the trailing arm 13 of the CTBA suspension 11, and the center is drawn in one side thereof in the longitudinal direction thereof.

상기 토션빔(10)은 차량 후륜에 장착되는 CTBA(COUPLED TORSION AXLE) 서스펜션(11)의 트레일링 암(13)에 용접으로 결합된다. 상기 토션빔(10)은 도 6에 도시된 바와 같이, 양단은 튜브(TUBE) 타입으로 형성되며, 그 길이 방향의 중앙으로는 인입되어 형성된다. The torsion beam 10 is welded to the trailing arm 13 of the CTBA (COUPLED TORSION AXLE) suspension 11 mounted on the rear wheel of the vehicle. As shown in FIG. 6, the torsion beam 10 is formed at both ends of a tube type, and is drawn into the center of the longitudinal direction.

구체적으로, 상기 토션빔(10)은 튜브 타입으로 하나의 부재로 형성되는 것으로서, 그 길이 방향의 중앙부는 도 6에 도시된 바와 같이, 일 측으로 인입되어 'V'형상을 이룬다. 상기 토션빔(10)은 그 길이 방향의 중앙부는 일 측으로 인입되어 'V'형상으로 이루며, 중앙에서 양단측으로 단면이 선형적으로 커지도록 구비된다. 이러한 토션빔(10)은 차량의 CTBA 서스펜션(11)의 트레일링 암(13) 간을 토션빔(10) 하나의 부재로 연결되도록 한다. 이러한 토션빔(10)의 트레일링 암(13)에의 용접부(15)는 단면이 평면형상으로 용접 결합됨으로써, 종래 라운드 형상의 용접과 달리 용접 품질이 양호하다. 또한, CTBA 서스펜션(11)의 트레일링 암(13)에 간을 토션빔(10) 하나의 부재로 연결되도록 함으로써, 부품 소요 비용의 절감이 가능한 구조를 갖는다.Specifically, the torsion beam 10 is formed as one member in the form of a tube, and the central portion in the longitudinal direction thereof is drawn into one side to form a 'V' shape as shown in FIG. 6. The torsion beam 10 has a central portion in the longitudinal direction drawn into one side to form a 'V' shape, and is provided such that its cross section is linearly enlarged from the center to both ends. The torsion beam 10 allows the trailing arms 13 of the CTBA suspension 11 of the vehicle to be connected to one member of the torsion beam 10. The welded portion 15 of the torsion beam 10 to the trailing arm 13 is welded in planar cross section, so that the welding quality is good, unlike conventional round-shaped welding. In addition, by allowing the liver to be connected to the trailing arm 13 of the CTBA suspension 11 by one member of the torsion beam 10, it is possible to reduce the cost of components.

상기의 구성을 갖는 본 발명에 따른 CTBA 서스펜션의 토션빔의 작용을 설명한다.The operation of the torsion beam of the CTBA suspension according to the present invention having the above configuration will be described.

본 발명에 따른 CTBA 서스펜션의 토션빔(10)을 차량의 트레일링 암 간에 용접으로 결합되도록 한다.The torsion beam 10 of the CTBA suspension according to the invention is to be joined by welding between the trailing arms of the vehicle.

이러한 CTBA 서스펜션(11)의 토션빔(10)의 트레일링 암(13)에의 용접 결합은 용접부(15)가 평면 형상으로 용접되도록 한다. 즉, 토션빔(10)의 단부는 도 6에 도시된 바와 같이, 튜브 형상을 이룸으로 용접 결합되는 단면이 평면 형상을 이룬다. 이에 따라, 토션빔(10)과 트레일링 암(13)과의 용접이 종래 라운드 형상이 아닌 평면 형상으로 용접됨으로써, 용접 결합 품질 향상을 이룬다. 그리고, 트레일링 암(13) 간을 토션빔(10) 하나의 부재만으로 결합 가능하도록 하여, 토션빔(10) 이외의 별도 부품이 소요되지 않음으로써 부품 소요 비용의 절감이 가능하다.This welding coupling of the CTBA suspension 11 to the trailing arm 13 of the torsion beam 10 causes the weld 15 to be welded in a planar shape. That is, as shown in Figure 6, the end of the torsion beam 10 is a tube-shaped cross-section that is welded to form a planar shape. Accordingly, the welding between the torsion beam 10 and the trailing arm 13 is welded in a planar shape instead of a conventional round shape, thereby achieving an improvement in weld joint quality. The trailing arms 13 may be coupled to each other by only one member of the torsion beam 10, so that a separate part other than the torsion beam 10 is not required, thereby reducing the cost of parts.

상기와 같은 본 발명에 따른 CTBA 서스펜션의 토션빔는 다음과 같은 효과를 갖는다.The torsion beam of the CTBA suspension according to the present invention as described above has the following effects.

CTBA 서스펜션의 트레일링 암에 토션빔의 선단을 튜브 형상을 이루도록 하여, 트레일링 암에 용접시 평면형상으로 용접되도록 함으로써 용접 품질 향상을 이룬다.The tip of the torsion beam is formed on the trailing arm of the CTBA suspension to form a tube shape, and the welding quality is improved by being welded in a planar shape when welding the trailing arm.

그리고, 트레일 암 간을 토션빔 하나의 부재로 연결 장착되도록 하여, 종래 다수개의 부품의 결합 대비하여 부품소요 비용이 감소되어 원가절감을 이룬다.In addition, by connecting the trail arm between the torsion beam with a single member, compared to the conventional combination of a plurality of components, the cost of parts required is reduced to achieve a cost reduction.

이상, 본 발명을 도면에 도시된 실시예를 참조하여 설명하였다. 그러나, 본 발명은 이에 한정되지 않고 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명과 균등한 범위에 속하는 다양한 변형예 또는 다른 실시예가 가능하다. 따라서, 본 발명의 진정한 보호범위는 이어지는 특허청구범위에 의해 정해져야 할 것이다.The present invention has been described above with reference to the embodiments shown in the drawings. However, the present invention is not limited thereto, and various modifications or other embodiments falling within the scope equivalent to the present invention are possible by those skilled in the art. Therefore, the true scope of protection of the present invention should be defined by the following claims.

Claims (4)

차량 후륜에 장착되는 CTBA(COUPLED TORSION AXLE) 서스펜션의 토션빔에 있어서,In the torsion beam of the CTBA (COUPLED TORSION AXLE) suspension mounted to the vehicle rear wheel, 상기 토션빔의 양단은 튜브 타입으로 형성되어 상기 CTBA 서스펜션의 트레일링 암에 용접 결합되며, 그 길이 방향의 중앙부는 일측으로 인입되어 형성되는 것을 특징으로 하는 CTBA 서스펜션의 토션빔.Both ends of the torsion beam are formed in a tube type and welded to the trailing arm of the CTBA suspension, and the central portion of the longitudinal direction is formed by drawing in one side. 제1항에 있어서,The method of claim 1, 상기 토션빔은 고장력강의 재질로 구비됨을 특징으로 하는 CTBA 서스펜션의 토션빔.The torsion beam is a torsion beam of the CTBA suspension, characterized in that provided with a material of high tensile strength steel. 제1항에 있어서,The method of claim 1, 상기 토션빔은 튜브 형상으로 구비되며, 그 길이 방향의 중앙부는 일측으로 인입되어 V형상으로 이루며, 중앙에서 양단측으로 단면이 선형적으로 커지도록 구비되는 것을 특징으로 하는 CTBA 서스펜션의 토션빔.The torsion beam is provided in a tubular shape, the central portion of the longitudinal direction is drawn into one side to form a V-shape, the torsion beam of the CTBA suspension, characterized in that the cross section is provided to increase linearly from the center to both ends. 제1항에 있어서,The method of claim 1, 상기 토선빔은 상기 트레일링 암에 평면 형상으로 용접 결합되는 것을 특징으로 하는 CTBA 서스펜션의 토션빔.The tossing beam is a torsion beam of CTBA suspension, characterized in that the welding is coupled to the trailing arm in a planar shape.
KR1020050068847A 2005-07-28 2005-07-28 Torsion beam of coupled torsion axle suspension KR20070014326A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113770569A (en) * 2021-08-11 2021-12-10 安徽大昌科技股份有限公司 Machining process for rear torsion beam of automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113770569A (en) * 2021-08-11 2021-12-10 安徽大昌科技股份有限公司 Machining process for rear torsion beam of automobile

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