KR20080009803A - Coupled torsion beam axle suspension system - Google Patents

Coupled torsion beam axle suspension system Download PDF

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Publication number
KR20080009803A
KR20080009803A KR1020060069454A KR20060069454A KR20080009803A KR 20080009803 A KR20080009803 A KR 20080009803A KR 1020060069454 A KR1020060069454 A KR 1020060069454A KR 20060069454 A KR20060069454 A KR 20060069454A KR 20080009803 A KR20080009803 A KR 20080009803A
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South Korea
Prior art keywords
torsion beam
beam axle
axle suspension
coupled
welded
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KR1020060069454A
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Korean (ko)
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KR100811933B1 (en
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김홍수
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현대자동차주식회사
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Priority to KR1020060069454A priority Critical patent/KR100811933B1/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
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/124—Mounting of coil springs
    • B60G2204/1242—Mounting of coil springs on a damper, e.g. MacPerson strut
    • B60G2204/12422—Mounting of coil springs on a damper, e.g. MacPerson strut anchoring the end coils on the spring support plate
    • 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
    • B60G2206/10—Constructional features of arms
    • B60G2206/124—Constructional features of arms the arm having triangular or Y-shape, e.g. wishbone
    • 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

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

Abstract

A suspension apparatus using a coupled torsion beam axle is provided to improve durability of the coupled torsion beam axle by allowing one side of a spring seat to make contact with an inner surface of a torsion beam. A suspension apparatus using a coupled torsion beam axle comprises trailing arms(100) installed at left and right sides of a vehicle. A torsion beam(300) is interposed between the trailing arms(100). Left and right end parts of the torsion beam, which is twisted in one direction, are fused on the trailing arms. The torsion beam has a triangular sectional shape in which one side thereof is open. One side of a spring seat(200) makes contact with and is fused on one inner side of the torsion beam. One side of the spring seat is fused on the trailing arm.

Description

커플드토션빔액슬 현가장치{COUPLED TORSION BEAM AXLE Suspension system}Coupled Torsion Beam Axle Suspension System {COUPLED TORSION BEAM AXLE Suspension system}

도 1은 종래 커플드토션빔액슬 현가장치를 보인 사시도1 is a perspective view showing a conventional coupled torsion beam axle suspension device

도 2는 종래 커플드토션빔액슬 현가장치용 토션빔의 설치상태를 보인 단면도Figure 2 is a cross-sectional view showing the installation state of the conventional torsion beam axle suspension coupler

도 3은 본 발명의 커플드토션빔액슬 현가장치를 보인 사시도Figure 3 is a perspective view of the coupled torsion beam axle suspension of the present invention

도 4는 본 발명인 커플드토션빔액슬 현가장치의 토션빔의 설치상태를 보인 단면도 Figure 4 is a cross-sectional view showing the installation state of the torsion beam of the present invention coupled torsion beam axle suspension device

*도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

100 : 트레일링암 200 : 스프링시트100: trailing arm 200: spring seat

300 : 토션빔 700 : 씨어센터300: torsion beam 700: theater center

본 발명은 커플드토션빔액슬 현가장치에 관한 것으로서, 더욱더 상세하게는 트레일링아암에 양측단부가 각각 용착되는 토션빔의 씨어센터를 낮추어 차량의 선회성능이 향상되도록 하는 커플드토션빔액슬 현가장치에 관한 것이다.The present invention relates to a coupled torsion beam axle suspension device, and more particularly, a coupled torsion beam axle suspension device which lowers the shear center of the torsion beam, on which both ends are welded to the trailing arm, to improve the turning performance of the vehicle. It is about.

일반적으로 커플드토션빔액슬(COUPLED TORSION BEAM AXLE)을 사용한 현가장치는 간단한 구조로 생산단가가 저렴하고 작은 질량에 비하여 상대적으로 높은 주행 안정성을 갖고 있어서 오랫동안 경차 및 준중형 차량의 후륜 현가장치로 사용되고 있다.In general, the suspension system using the COUPLED TORSION BEAM AXLE has been used as a rear suspension of light and semi-medium-sized vehicles for a long time due to its simple structure and low production cost and relatively high running stability compared to small mass. .

도 1은 종래 커플드토션빔액슬 현가장치를 도시한 것으로서, 차량의 좌우 양측에 설치되는 트레일링암(100)에 스프링시트(200)와 토션빔(300)이 각각 용착되고, 상기 스프링시트(200)와 토션빔(300) 사이에는 연결브라켓(400)이 용착되어 있다.1 illustrates a conventional coupled torsion beam axle suspension device, in which a spring seat 200 and a torsion beam 300 are welded to trailing arms 100 installed on both left and right sides of a vehicle, respectively, and the spring seat 200 ) And the connection bracket 400 is welded between the torsion beam 300.

한편, 상기 토션빔(300)은 도 2에 도시된 바와 같이 하측으로 개구되어 벌어지는 삼각형상의 단면을 가지고 있고, 상기 토션빔(300)의 내측에는 강성을 보조하는 토션바(500)가 설치되어 있다. Meanwhile, as shown in FIG. 2, the torsion beam 300 has a triangular cross section that opens and opens downward, and a torsion bar 500 is provided inside the torsion beam 300 to assist rigidity. .

이러한 종래 커플드토션빔액슬 현가장치는 차량을 운행 중 선회를 수행 시 차체 경사에 의해 일측 트레일링암은 떠오르기 때문에 토션빔(300) 및 토션바(500)가 세게 비틀어지고, 이 비틀림에 대한 반력이 좌우 트레일링암(100)의 반대로 보정하는 방향으로 작용하기 때문에 차체의 경사를 억제하여 변화하지 않는 노면 캠버와 함께 뛰어난 주행 승차감을 얻을 수 있게 된다.In the conventional coupled torsion beam axle suspension device, the torsion beam 300 and the torsion bar 500 are hardly twisted because one trailing arm rises due to the inclination of the vehicle body when the vehicle turns while driving. Since it acts in the direction of correcting the opposite of the left and right trailing arms 100, it is possible to suppress the inclination of the vehicle body and to obtain an excellent driving ride feeling with the road camber which does not change.

그러나, 이러한 이러한 종래 커플드토션빔액슬 현가장치는 토션빔(300)과 스프링시트(200)가 연결되도록 하는 연결브라켓(600)의 용착부분에 와핑(warping)이 증대되면서 응력이 집중되어 커플드토션빔액슬의 내구성을 저하시키게 되는 문제점이 있었다. However, such a conventional coupled torsion beam axle suspension device is coupled to the stress concentrated while the warping is increased in the welded portion of the connection bracket 600 to allow the torsion beam 300 and the spring seat 200 is connected. There is a problem in that the durability of the torsion beam axle is reduced.

또한, 종래에는 상기 토션빔(300)이 도 2에 도시된 바와 같이 개구부가 하부를 향하도록 설치되는 것에 의해 씨어센터(700)가 높은곳에 위치되어지게 됨으로써, 차량을 선회시에도 차체가 일측으로 쏠리지 않도록 하기 위해서는 상기 토션빔(300)의 내측에는 강성을 보조하는 별도의 강성보조용 토션바(500)를 설치하여야 한다.In addition, in the related art, the torsion beam 300 is located at a high place by the opening of the torsion beam 300 as shown in FIG. 2, so that the vehicle body is turned to one side even when the vehicle is turned. In order not to be inclined, a torsion bar 500 for additional rigidity assisting rigidity must be installed inside the torsion beam 300.

따라서, 차량을 제작시 부품수가 증가하고, 작업공정이 증가하여 차량의 제작단가가 상승하게 되는 문제점이 있었다.Therefore, there is a problem in that the number of parts increases when manufacturing the vehicle, the work process increases to increase the manufacturing cost of the vehicle.

본 발명의 목적은 커플드토션빔액슬의 토션빔의 중심을 낮추어 롤센터가 낮아지도록 함으로써, 차량을 운행중 선회등을 수행 시, 차량의 선회성능이 향상되도록 하는 커플드토션빔액슬 현가장치를 제공하는 데 있다.An object of the present invention is to lower the center of the torsion beam of the coupled torsion beam axle so that the roll center is lowered, to provide a coupled torsion beam axle suspension device to improve the turning performance of the vehicle when turning, etc. while driving the vehicle. There is.

또한, 본 발명은 스프링시트의 일측부가 토션빔의 내측면에 접하는 것에 의해 , 커플드토션빔액슬의 내구성이 향상되도록 하는 커플드토션빔액슬 현가장치를 제공하는 데 있다.In addition, the present invention is to provide a coupled torsion beam axle suspension device to improve the durability of the coupled torsion beam axle by contacting one side of the spring sheet to the inner surface of the torsion beam.

이러한 본 발명의 목적은 차량의 좌우 양측에 각각 설치되는 트레일링암(100)에 토션빔(300)의 씨어센터(700) 중심이 낮은곳에 위치되도록 회전되어 좌우 양측단부가 용착되고, 상기 트레일링암(100)에 회전이 이루어지면서 양측단부가 용착된 토션빔(300)의 내측면에는 트레일링암(100)에 일측부가 용착되어 있는 스프링시트(200)의 타측부가 용착되는 것에 의해 달성된다.The object of the present invention is rotated so that the center of the shear center 700 of the torsion beam 300 is located at a lower place on the trailing arms 100 respectively installed on the left and right sides of the vehicle, and the left and right both ends are welded. Rotation is made to 100 and is achieved by welding the other side of the spring sheet 200 on which one side is welded to the trailing arm 100 on the inner side of the torsion beam 300 on which both ends are welded.

이하, 본 발명의 커플드토션빔액슬 현가장치를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the coupled torsion beam axle suspension of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명의 커플드토션빔액슬 현가장치를 보인 사시도 이고, 도 4는 본 발명인 커플드토션빔액슬 현가장치의 토션빔의 설치상태를 보인 단면도이다.Figure 3 is a perspective view showing a coupled torsion beam axle suspension of the present invention, Figure 4 is a cross-sectional view showing the installation state of the torsion beam of the coupled torsion beam axle suspension of the present invention.

본 발명인 커플드토션빔액슬 현가장치는 도 3과 도 4에 도시하고 있는 바와 같이, 차량의 좌우 양측에 각각 트레일링암(100)이 설치되고, 상기 트레일링암(100)과 트레일링암(100) 사이에는 일측이 개구된 삼각형 형상의 단면을 가지고 있는 토션빔(300)이 일측방향으로 회전된 상태로 좌우 양측단부가 각각 용착되며, 상기 토션빔(300)의 내측 일측면에는 일측부가 트레일링암(100)에 용착되어 있는 스프링시트(200)의 일측부가 접하며 용착된다.As shown in FIG. 3 and FIG. 4, the coupler torsion beam axle suspension device of the present invention is provided with trailing arms 100 on both left and right sides of the vehicle, and between the trailing arm 100 and the trailing arm 100. The torsion beam 300 having a triangular cross-section with one side opened is welded to both left and right ends thereof in a state in which the torsion beam 300 is rotated in one direction, and one side of the torsion beam 300 is provided with a trailing arm 100. One side of the spring sheet 200 which is welded to the contact) is welded.

이와 같이 구성된 본 발명에 의한 커플드토션빔액슬 현가장치는 삼각형 형상의 단면을 가지며 일측이 개구되어 있는 토션빔(300)이 일측방향으로 회전된 상태로 좌우 양측단부가 각각 트레일링암(100)에 용착되는 것에 의해 씨어센터(700)가 낮아지게 된다.Coupled torsion beam axle suspension according to the present invention configured as described above has a triangular cross-section and one side of the torsion beam 300 is rotated in one direction, the left and right both ends of the trailing arm 100, respectively By welding, the shear center 700 is lowered.

이로 인해 차량을 운행중 선회등을 수행하는 것에 의해 트레일링암(100)을 통해 토션빔(300)으로 큰 하중이 유입되면, 상기 토션빔(300)이 트레일링암(100)을 통해 유입되는 하중에 의해 일자로 펴지면서 좌우 바퀴의 트레드 중심간의 거리인 힐트레드를 증대시키게 된다.Therefore, when a large load flows into the torsion beam 300 through the trailing arm 100 by performing a turning light while driving the vehicle, the torsion beam 300 is caused by the load flowing through the trailing arm 100. The straightening increases the heel tread, the distance between the tread centers of the left and right wheels.

한편, 상기 씨어센터(700)가 낮아지도록 트레일링암(100)에 좌우 양측단부가 용착되어 있는 토션빔(300)의 내측 일측면에는 스프링시트(200)의 일측부가 접하며 용착되는 것에 의해, 상기 토션빔(300)과 스프링시트(200)과 연결되도록 하는 별물의 연결브라켓을 토션빔(300)과 스프링시트(200)에 설치하지 않아도 됨은 물론, 롤센터가 낮아지는 것에 의해 별물의 토션바를 토션빔(300)의 내측면에 설치하지 않아도 된다.On the other hand, the one side of the spring sheet 200 is welded in contact with the inner side surface of the torsion beam 300, the left and right both ends are welded to the trailing arm 100 so that the shear center 700 is lowered, the torsion The torsion beam of the separate to be connected to the beam 300 and the spring sheet 200 does not need to be installed in the torsion beam 300 and the spring sheet 200, as well as the torsion bar of the torsion bar by lowering the roll center It is not necessary to install the inner surface of the 300.

따라서 이와같이 구성되는 본 발명에 의하면, 토션빔의 내측부에 강성보강용 토션바를 설치하지 않아도 됨은 물론, 상기 토션빔과 스프링시트가 연결되도록 하는 별물의 연결브라켓을 토션빔과 스프링시트 사이에 용착시키지 않아도 됨으로써, 차량을 제작시 부품수가 저감되고 작업공정이 절감되어 차량의 제작단가가 절감되어지게 되는 효과가 있다.Therefore, according to the present invention configured as described above, the torsion bar for rigid reinforcement does not need to be installed on the inner side of the torsion beam, and the welding bracket for connecting the torsion beam and the spring sheet is not welded between the torsion beam and the spring sheet. When manufacturing a vehicle, the number of parts is reduced and the work process is reduced, thereby reducing the manufacturing cost of the vehicle.

한편, 본 발명에 의하면 토션빔의 씨어센터가 낮아 롤강성이 증대되는 관계로, 차량을 운행중 선회등을 수행시 트레일리아암을 통해 충격 및 하중이 가해지는 경우에도 운전자가 차량의 쏠림을 느끼지 않게 됨은 물론, 조향성이 향상되어지게 되는 등의 효과가 있는 매우 유용한 발명이다.Meanwhile, according to the present invention, since the center of the torsion beam is low, the roll stiffness is increased, so that the driver does not feel the vehicle even when a shock and a load are applied through the trailing arm when turning the vehicle while driving. Of course, it is a very useful invention with the effect that the steering is improved.

Claims (1)

차량의 좌우 양측에 각각 트레일링암(100)이 설치되고, 상기 트레일링암(100)과 트레일링암(100) 사이에는 일측이 개구된 삼각형 형상의 단면을 가지고 있는 토션빔(300)이 일측방향으로 회전된 상태로 좌우 양측단부가 각각 용착되며, 상기 토션빔(300)의 내측 일측면에는 일측부가 트레일링암(100)에 용착되어 있는 스프링시트(200)의 일측부가 접하며 용착되는 것을 특징으로 하는 커플드토션빔액슬 현가장치.A trailing arm 100 is installed at both left and right sides of the vehicle, and a torsion beam 300 having a triangular cross section with one side opened between the trailing arm 100 and the trailing arm 100 rotates in one direction. The left and right both ends are welded in a state in which the couple is characterized in that the one side portion of the spring seat 200 is welded and welded to one side of the inner side of the torsion beam 300 is welded to the trailing arm 100 Torsion beam axle suspension system.
KR1020060069454A 2006-07-25 2006-07-25 COUPLED TORSION BEAM AXLE Suspension system KR100811933B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200128810A (en) 2019-05-07 2020-11-17 현대자동차주식회사 Coupled torsion beam axle apparatus of vehicle
KR20230012186A (en) 2021-07-15 2023-01-26 현대자동차주식회사 Coupled torsion beam axle type rear suspension and assembly method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200128810A (en) 2019-05-07 2020-11-17 현대자동차주식회사 Coupled torsion beam axle apparatus of vehicle
US11124039B2 (en) 2019-05-07 2021-09-21 Hyundai Motor Company Coupled torsion beam axle apparatus of vehicle
KR20230012186A (en) 2021-07-15 2023-01-26 현대자동차주식회사 Coupled torsion beam axle type rear suspension and assembly method thereof

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