KR20070028672A - A ball joint for suspension system - Google Patents

A ball joint for suspension system Download PDF

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Publication number
KR20070028672A
KR20070028672A KR1020050080187A KR20050080187A KR20070028672A KR 20070028672 A KR20070028672 A KR 20070028672A KR 1020050080187 A KR1020050080187 A KR 1020050080187A KR 20050080187 A KR20050080187 A KR 20050080187A KR 20070028672 A KR20070028672 A KR 20070028672A
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KR
South Korea
Prior art keywords
ball
stud
ball stud
knuckle
ball joint
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KR1020050080187A
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Korean (ko)
Inventor
김현규
Original Assignee
현대자동차주식회사
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Priority to KR1020050080187A priority Critical patent/KR20070028672A/en
Publication of KR20070028672A publication Critical patent/KR20070028672A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/005—Ball joints
    • 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
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/416—Ball or spherical joints
    • 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
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/43—Fittings, brackets or knuckles
    • 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
    • B60G2206/90—Maintenance
    • B60G2206/91—Assembly procedures
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623—Construction or details of the socket member

Abstract

A ball joint for a suspension system is provided to improve assemblability by changing the shape of a bolt compression groove formed on one side of a ball stud and varying the position of a ball against a knuckle. The ball joint for a suspension system comprises a ball stud(7) having a ball(15) formed on the front and forming a bolt compression groove(9) around the outer circumferential surface, and a spherical socket coupled to cover up the ball of the ball stud to connect the ball to be rotatable freely. The bolt compression groove of the ball stud is a round groove to be inclined at the appointed angle(theta) against the outer circumferential surface of the ball stud. The ball joint connects a knuckle and a lower control arm by inserting and fixing a fastening bolt(11) through one side of the bolt compression groove of the ball stud while the ball stud is inserted to the lower side of the knuckle vertically, and the spherical socket of the ball joint is fastened to one end of the lower control arm and coupled with the ball of the ball stud to connect the knuckle and the lower control arm.

Description

현가장치용 볼 조인트{A BALL JOINT FOR SUSPENSION SYSTEM}Ball joint for suspension device {A BALL JOINT FOR SUSPENSION SYSTEM}

도 1은 볼 조이트가 적용되는 일반적인 현가장치의 부분 사시도, 1 is a partial perspective view of a typical suspension device to which a ball screw is applied;

도 2는 볼 조인트의 볼 스터드가 체결되는 너클의 사시도.Figure 2 is a perspective view of the knuckle to which the ball studs of the ball joint are fastened.

도 3과 도 4는 종래 기술에 따른 볼 조인트의 볼 스터드 장착 원리도, 및3 and 4 is a ball stud mounting principle of the ball joint according to the prior art, and

도 5와 도 6은 본 발명의 실시예에 따른 볼 조인트의 볼 스터드와 그 장착 원리도이다.5 and 6 are ball studs and mounting principle of the ball joint according to an embodiment of the present invention.

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

5; 볼 조인트 7; 볼 스터드5; Ball joint 7; Ball studs

9; 볼트 압착홈 11; 체결볼트;9; Bolt crimp 11; Fastening bolts;

13; 구면 소켓 15; 볼13; Spherical socket 15; ball

본 발명은 자동차 현가장치용 볼 조인트에 관한 것으로, 보다 상세하게는 볼 스터드의 일측에 형성되는 볼트 압착홈의 형상을 변경하여 너클에 대한 볼의 위치를 가변할 수 있도록 하는 현가장치용 볼 조인트에 관한 것이다. The present invention relates to a ball joint for vehicle suspension, and more particularly, to a ball joint for suspension that can change the position of the ball relative to the knuckle by changing the shape of the bolt pressing groove formed on one side of the ball stud It is about.

예컨데, 자동차에 있어서의 현가장치는 차축과 차체를 연결하고, 주행 중 노 면으로부터 받는 진동과 충격을 흡수하여 승차감과 선회 안정성을 향상시키는 장치이다.For example, a suspension device in an automobile is a device that connects the axle and the body and absorbs vibrations and shocks received from the road surface while driving to improve ride comfort and turning stability.

도 1은 스트러트형 현가장치에서, 너클(1)과 로워 컨트롤 아암(3)을 볼 조인트(5)로 연결한 현가장치의 부분 구성을 도시하고 있다.FIG. 1 shows a partial configuration of a suspension device in which a knuckle 1 and a lower control arm 3 are connected by a ball joint 5 in a strut suspension.

즉, 상기한 볼 조인트(5)는 도 2에서 도시한 바와 같이, 너클(1)의 하부 일측에 볼 스터드(7)를 수직방향으로 끼운 상태로, 도 3과 도 4에서 도시한 바와 같이, 상기 볼 스터드(7)의 외측부에 형성되는 볼트 압착홈(9)을 통하여 체결볼트(11)를 수평방향으로 끼워서 체결하게 되고, 볼 조인트(5)의 구면 소켓(13)은 상기 로워 컨트롤 아암(3)의 일단에 체결된 상태로 상기 볼 스터드(7)의 단부에 형성되는 볼(15)과 결합되어 상기 너클(1)과 로워 컨트롤 아암(3)을 연결하게 된다. That is, the ball joint 5 as shown in Figure 2, in the state in which the ball stud 7 is inserted in the vertical direction on the lower side of the knuckle 1, as shown in Figures 3 and 4, The fastening bolt 11 is inserted into the horizontal direction through the bolt pressing groove 9 formed at the outer side of the ball stud 7, and the spherical socket 13 of the ball joint 5 is connected to the lower control arm ( It is coupled to the ball 15 formed at the end of the ball stud (7) in the state coupled to one end of the 3) to connect the knuckle (1) and the lower control arm (3).

그러나 상기한 바와 같은 종래의 볼 조인트(5)는 볼 스터드(7)에 형성된 볼트 압착홈(9)이 그 외주면을 따라 평행하게 형성된 상태로 체결볼트(11)에 의해 너클(1)에 설치구에 압착 체결됨으로, 상기 너클(1)에 대하여 볼(15)의 위치를 가변하는 것이 불가능하며, 특히, 이는 차량 부품들의 공차와 조립과정에서 발생하는 초기 휠 얼라인먼트(Wheel Alignment)의 불량을 조정하는 것이 극히 어렵다는 문제점을 내포하고 있다. However, the conventional ball joint 5 as described above is installed in the knuckle 1 by the fastening bolt 11 in a state in which the bolt pressing groove 9 formed in the ball stud 7 is formed in parallel along the outer circumferential surface thereof. It is impossible to vary the position of the ball 15 with respect to the knuckle 1 by being fastened to the knuckle 1, and in particular, it is possible to adjust the tolerance of the vehicle parts and the failure of the initial wheel alignment occurring during the assembly process. The problem is that it is extremely difficult.

따라서 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로서, 본 발명의 목적은 볼 스터드의 일측에 형성되는 볼트 압착홈의 형상을 변경하여 너클에 대한 볼의 위치를 가변할 수 있도록 하여 조립성을 향상시킬 수 있도록 하는 현가장치용 볼 조인트를 제공하는 것이다. Therefore, the present invention has been invented to solve the above problems, the object of the present invention is to change the shape of the bolt crimp groove formed on one side of the ball stud to be able to change the position of the ball relative to the knuckle assembling It is to provide a ball joint for the suspension device to improve the.

상기한 바와 같은 목적을 실현하기 위한 본 발명의 현가장치용 볼 조인트는 선단에 볼을 형성하며, 외주면에 둘레를 따라 볼트 압착홈을 형성하는 볼 스터드와 상기 볼 스터드의 볼을 감싸며 결합되어 상기 볼을 자유롭게 회전 가능하도록 연결하는 구면 소켓으로 이루어지는 현가장치용 볼 조인트에 있어서, Suspension ball joint of the present invention for realizing the object as described above forms a ball at the front end, the ball stud and the ball stud forming a bolt compression groove along the periphery of the ball is coupled to the ball stud is combined In the ball joint for suspension device consisting of a spherical socket for connecting so as to rotate freely,

상기 볼 스터드 일측 외주면 둘레에 형성되는 볼트 압착홈은 상기 볼 스터드 외주면 둘레에 대하여 경사지게 라운드 형상의 홈으로 형성되는 것을 특징으로 한다. The bolt pressing groove formed around the outer circumferential surface of the ball stud one side may be formed as a groove having a round shape inclined with respect to the outer circumferential surface of the ball stud.

이하, 상기의 목적을 구체적으로 실현할 수 있는 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described in detail.

도 5와 도 6은 본 발명의 실시예에 따른 볼 조인트의 볼 스터드와 그 장착 원리도이다.5 and 6 are ball studs and mounting principle of the ball joint according to an embodiment of the present invention.

단, 본 발명의 구성 설명에 있어 종래의 구성요소와 동일한 구성요소에 대해서는 동일한 도면부호를 적용한다. However, in the description of the components of the present invention, the same reference numerals are applied to the same components as the conventional components.

본 발명의 실시예에 따른 볼 조인트(5)의 구성은 기본적으로, 선단에 볼(15)을 형성하며, 외주면에 둘레를 따라 볼트 압착홈(9)을 형성하는 볼 스터드(7)와 상기 볼 스터드(7) 선단의 볼(15)을 감싸며 결합되어 상기 볼(15)을 자유롭게 회전 가능하도록 연결하는 구면 소켓(13, 도 1참조)으로 이루어진다. In the configuration of the ball joint 5 according to the embodiment of the present invention, the ball stud (7) and the ball to form the ball 15 in the front end, the bolt pressing groove (9) along the periphery of the outer peripheral surface It is composed of a spherical socket 13 (see FIG. 1) which surrounds the ball 15 at the tip of the stud 7 and is coupled to freely rotate the ball 15.

즉, 본 발명의 실시예에 따른 볼 조인트(5)의 특징적 부분은 상기 볼 스터드 (7) 일측 외주면 둘레에 형성되는 볼트 압착홈(9)이 상기 볼 스터드(7)의 외주면 둘레에 대하여 일정각(θ)으로 경사지게 형성되는 라운드 형상의 홈으로 이루어지는 것이다. That is, the characteristic portion of the ball joint 5 according to the embodiment of the present invention is a bolt pressing groove 9 formed around the outer circumferential surface of one side of the ball stud 7 at a predetermined angle with respect to the circumference of the outer circumferential surface of the ball stud 7. It consists of a round groove formed inclined at (theta).

따라서, 상기한 바와 같은 구성을 갖는 볼 조인트(5)는 상기 도 1에서와 같이, 너클(1)과 로워 컨트롤 아암(3)을 연결하게 되는데, 즉, 상기 너클(1)의 하부 일측에 볼 스터드(7)를 수직방향으로 끼운 상태로, 도 5에서와 같이, 상기 볼 스터드(7)의 외주면에 형성되는 경사진 볼트 압착홈(9)의 일측을 통하여 체결볼트(11)를 수평방향으로 끼워서 체결하게 되고, 볼 조인트(5)의 구면 소켓(13)은 상기 로워 컨트롤 아암(3)의 일단에 체결된 상태로 상기 볼 스터드(7)의 단부에 형성되는 볼(15)과 결합하여 상기 너클(1)과 로워 컨트롤 아암(3)을 연결하게 된다. Accordingly, the ball joint 5 having the configuration as described above connects the knuckle 1 and the lower control arm 3 as shown in FIG. 1, that is, the ball on the lower side of the knuckle 1. In the state in which the stud 7 is inserted in the vertical direction, as shown in FIG. 5, the fastening bolt 11 in the horizontal direction through one side of the inclined bolt pressing groove 9 formed on the outer circumferential surface of the ball stud 7. And the spherical socket 13 of the ball joint 5 is engaged with the ball 15 formed at the end of the ball stud 7 in a state of being fastened to one end of the lower control arm 3. The knuckle (1) and the lower control arm (3) are connected.

이 때, 차량 부품들의 공차나 조립과정에서 발생하는 초기 휠 얼라인먼트(Wheel Alignment)의 불량을 조정하기 위하여 상기 볼 스터드(7) 선단의 볼(15)의 위치를 더 위로 올려야 하는 경우에는, 상기 체결볼트(11)를 조금 푼 상태로, 상기 볼 스터드(7)를 180도 범위내에서 돌리면서 높이를 조정한 후 다시 체결볼트(11)를 조이면, 상기 볼(15)의 위치는 최초보다 아래로 위치시켜 체결할 수 있게 된다. In this case, when the position of the ball 15 at the tip of the ball stud 7 needs to be raised further in order to adjust the tolerance of the vehicle parts and the initial wheel alignment defect occurring during the assembly process, the fastening is performed. With the bolt 11 slightly loosened, the ball stud 7 is rotated within the range of 180 degrees, the height is adjusted, and the tightening bolt 11 is tightened again. The position of the ball 15 is lower than the initial position. It can be positioned and tightened.

상기한 바와 같이, 본 발명의 현가장치용 볼 조인트에 의하면, 볼 스터드의 일측에 형성되는 볼트 압착홈의 형상을 경사지게 형성하여 체결볼트에 의해 압착 고정되는 부분을 가변함으로써 너클에 대한 볼의 위치를 가변할 수 있으며, 이에 따라 부품 공차와 차량의 조립 초기에 발생하는 휠 얼라인먼트(Wheel Alignment) 변화의 조정이 가능한 효과가 있다. As described above, according to the suspension ball joint of the present invention, the shape of the bolt pressing groove formed on one side of the ball stud is formed to be inclined to change the position of the ball relative to the knuckle by varying the portion that is pressed and fixed by the fastening bolt. In this case, the tolerance of the parts and the wheel alignment change occurring at the initial stage of assembly of the vehicle can be adjusted.

또한, 차량 주행에 따른 휠 얼라이먼트 변화를 쉽게 보정할 수 있으며, 별도의 장치나 추가 비용 및 무게증가가 없이도 가능하다는 장점이 있다.In addition, the wheel alignment change can be easily corrected according to the vehicle driving, and there is an advantage that it is possible without a separate device or additional cost and weight increase.

Claims (1)

선단에 볼을 형성하며, 외주면에 둘레를 따라 볼트 압착홈을 형성하는 볼 스터드와 상기 볼 스터드의 볼을 감싸며 결합되어 상기 볼을 자유롭게 회전 가능하도록 연결하는 구면 소켓으로 이루어지는 현가장치용 볼 조인트에 있어서, In the ball joint for suspension device comprising a ball stud to form a ball at the tip, and a ball stud to form a bolt crimp groove along the circumference of the outer circumference and a spherical socket connecting the ball of the ball stud and rotatably connect the ball. , 상기 볼 스터드 일측 외주면 둘레에 형성되는 볼트 압착홈은 상기 볼 스터드 외주면 둘레에 대하여 경사지게 라운드 형상의 홈으로 형성되는 것을 특징으로 하는 현가장치용 볼 조인트.The bolt pressing groove formed around the outer circumferential surface of the ball stud one side is a ball joint for a suspension device, characterized in that formed in a groove having a round shape inclined with respect to the outer circumferential surface of the ball stud.
KR1020050080187A 2005-08-30 2005-08-30 A ball joint for suspension system KR20070028672A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8132820B2 (en) 2009-07-31 2012-03-13 Hyundai Motor Company Lower arm mounting unit for multi-link suspension system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8132820B2 (en) 2009-07-31 2012-03-13 Hyundai Motor Company Lower arm mounting unit for multi-link suspension system

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