KR100794995B1 - Noise prevention device of steering system for vehicle - Google Patents

Noise prevention device of steering system for vehicle Download PDF

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Publication number
KR100794995B1
KR100794995B1 KR1020010068439A KR20010068439A KR100794995B1 KR 100794995 B1 KR100794995 B1 KR 100794995B1 KR 1020010068439 A KR1020010068439 A KR 1020010068439A KR 20010068439 A KR20010068439 A KR 20010068439A KR 100794995 B1 KR100794995 B1 KR 100794995B1
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South Korea
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rack
housing
ball
stopper
steering system
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KR1020010068439A
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Korean (ko)
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KR20030037417A (en
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박수형
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주식회사 만도
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D3/00—Steering gears
    • B62D3/02—Steering gears mechanical
    • B62D3/12—Steering gears mechanical of rack-and-pinion type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/04—Connections between superstructure or understructure sub-units resilient
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/16—Arrangement of linkage connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/09—Reducing noise

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

본 발명은 차량용 스티어링 시스템의 노이즈 방지장치에 관한 것으로서, 그 목적은 랙하우징의 양단에 설치된 랙스톱퍼와, 랙바에 연결되는 이너볼조인트의 볼하우징이 접할때 생기는 충격음(노이즈)을 방지할 수 있도록 랙스톱퍼의 구조를 개선한 차량용 스티어링 시스템의 노이즈 방지장치를 제공하는 것이며, 중공으로 마련된 랙하우징의 내부에 축방향으로 이동 가능하게 설치되되 양단은 상기 랙하우징의 외부로 연장된 랙바와, 이 랙바의 좌, 우 이동을 제한할 수 있도록 중공으로 마련되어 랙바의 외부면과 랙하우징의 양단측 내부면 사이에 설치되는 랙스톱퍼와, 이 랙바의 양단에 결합되며 일측이 개구형성된 볼하우징과 이 볼하우징의 내부에 삽입 결합되는 볼부로 이루어진 이너볼조인트를 구비하는 차량용 스티어링 시스템에 있어서, 상기한 랙스톱퍼는 볼하우징이 접하는 면쪽에 원주방향으로 삽입홈을 형성하고, 스틸파이프에 고무를 가류접착하되, 그 고무를 볼하우징과 접하는 쪽으로 돌출되도록 마련하여 상기한 삽입홈에 압입 끼움함으로서 달성된다. The present invention relates to a noise preventing device for a steering system for a vehicle, and an object thereof is to prevent shock (noise) generated when a ball stopper of an inner ball joint connected to a rack stopper and a rack stopper installed at both ends of a rack housing is in contact with the rack housing. It is to provide a noise preventing device of the steering system for the vehicle improved the structure of the rack stopper, the rack bar is installed to be movable in the axial direction inside the rack housing provided in a hollow, both ends of the rack bar extending to the outside of the rack housing, A rack stopper provided between the outer surface of the rack bar and the inner surface of both ends of the rack housing so as to restrict the left and right movement of the rack bar, and the ball housing coupled to both ends of the rack bar and having an opening formed at one side thereof. In the steering system for a vehicle having an inner ball joint made of a ball portion inserted into the interior of the, Rack stopper forms a groove in the circumferential direction if the ball housing in contact with the side, but vulcanization bonding the rubber to the steel pipe, and the rubber ball is accomplished by the inserted press-fit into the groove and adapted to be protruded on the contact with the housing.

볼하우징, 완충부재, 스틸파이프, 고무, 가류접착Ball housing, shock absorbing member, steel pipe, rubber, vulcanization

Description

차량용 스티어링 시스템의 노이즈 방지장치 {NOISE PREVENTION DEVICE OF STEERING SYSTEM FOR VEHICLE}Noise Control System for Vehicle Steering System {NOISE PREVENTION DEVICE OF STEERING SYSTEM FOR VEHICLE}

도 1은 종래 랙스톱퍼의 설치상태를 보인 단면도이다. 1 is a cross-sectional view showing an installation state of a conventional rack stopper.

도 2는 본 발명에 따른 랙스톱퍼의 설치상태를 보인 단면도이다. 2 is a cross-sectional view showing an installation state of a rack stopper according to the present invention.

〈도면의 주요 부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

10:랙하우징 20:로터리밸브10: rack housing 20: rotary valve

30:랙바 40:서클립(Circlip)30: Rackbar 40: Circlip

60:타이로드 70:이너볼조인트60: tie rod 70: inner ball joint

80:볼하우징 90:볼부 80: ball housing 90: ball part

100:랙스톱퍼 101:삽입홈100: rack stopper 101: insert groove

102:홈 104:스틸파이프102: groove 104: steel pipe

105:고무105: rubber

본 발명은 차량용 스티어링 시스템의 노이즈 방지장치에 관한 것으로, 특히, 랙바의 이동을 제한하기 위해 랙하우징에 설치되는 랙스톱퍼와 랙바에 연결되는 이 너볼조인트의 볼하우징이 밀착되면서 발생되는 충격음(노이즈)을 방지할 수 있도록 랙스톱퍼의 구조를 개선한 차량용 스티어링 시스템의 노이즈 방지장치에 관한 것이다. The present invention relates to an anti-noise device for a steering system for a vehicle, and in particular, a shock sound (noise) generated when the ball stop of an inner ball joint connected to a rack stopper and a rack bar installed in a rack housing to limit the movement of the rack bar is in close contact. The present invention relates to a noise preventing device for a vehicle steering system having an improved structure of a rack stopper.

일반적으로 차량용 스티어링 시스템은 조향휠에서 발생되는 회전력을 조향륜에 전달할 수 있도록 그 사이에 마련되는 것으로서, 조향휠에 연결되는 조향축과, 이 조향축에 연결된 기어박스, 그리고 기어박스의 양측에 랙바와 이너볼조인트로서 연결되는 타이로드 등을 구비하며, 이때, 조향휠의 좌, 우 최대회전시 좌, 우측으로 최대로 연동되는 랙바의 이동을 제한할 수 있도록 랙스톱퍼가 설치된다. In general, the steering system for a vehicle is provided between the steering wheel to transmit the rotational force generated from the steering wheel, the steering shaft connected to the steering wheel, the gearbox connected to the steering wheel, and the rack on both sides of the gearbox A tie rod connected to the bar as the inner ball joint is provided, and at this time, a rack stopper is installed to limit the movement of the rack bar that is interlocked to the left and right at the maximum rotation of the steering wheel.

도 1은 종래의 이러한 차량용 스티어링 시스템에 구비되는 랙스톱퍼가 설치된 상태를 보이기 위한 부분단면도이다. 1 is a partial cross-sectional view for showing a state where a conventional rack stopper is installed in such a vehicle steering system.

이에 도시된 바와 같이, 좌, 우측으로 길게 중공으로 마련되어 내부에 랙바(30)가 설치되고 중간 일측에는 랙바(30)와 교차하는 방향으로 로터리밸브(20)가 설치된 랙하우징(10)이 마련된다. As shown in the figure, the rack bar 30 is provided in the hollow to the left, the right side is installed inside the rack housing 10 is provided with a rotary valve 20 in the direction intersecting the rack bar 30 on one side of the middle. .

이 랙하우징(10)의 내부에 설치되는 랙바(30)는 금속의 원봉으로서 미도시된 중간 일측에 랙이 형성되고, 중간 타측에는 피스톤이 마련되어 로터리밸브(20)의 중심측에 마련된 피니언과 랙이 치합되어 동력을 전달받음과 동시에 로터리밸브(20)에서 공급되는 유압으로 인해 좌, 우측으로 동작된다. The rack bar 30 installed inside the rack housing 10 has a rack formed on a middle one side of the rack, which is not shown as a metal rod, and a piston is provided on the other side of the rack housing. The pinion and the rack are provided on the center side of the rotary valve 20. The gear is operated to the left and the right due to the hydraulic pressure supplied from the rotary valve 20 while receiving power.

한편, 랙하우징(10)의 외부 양측으로 연장되는 랙바(30)의 양측 선단에는 랙바(30)의 양단에 결합되며 일측이 개구형성된 볼하우징(80)과 이 볼하우징(80)의 내부에 삽입 결합되는 볼부(90)로 이루어진 이너볼조인트(70)가 설치되며 , 이 이 너볼조인트(70)에 타이로드(60)가 연결 설치된다. On the other hand, both ends of the rack bar 30 extending to the outer both sides of the rack housing 10 is coupled to both ends of the rack bar 30, one side of which is formed in the ball housing 80 and inserted into the inside of the ball housing 80 Inner ball joint 70 made of a ball unit 90 to be coupled is installed, the tie rod 60 is connected to the inner ball joint 70 is installed.

또한, 조향휠이 좌, 우로 최대한 회전 되었을때 랙바(30)는 좌, 우측으로 최대로 연동되는데, 이때, 랙바(30)의 이동을 제한할 수 있도록 중공의 소결에 의해 만들어지는 랙스톱퍼(50)가 서클립(40)에 의해 랙하우징(10)에 체결 설치된다. In addition, when the steering wheel is rotated as far as possible to the left and right, the rack bar 30 is maximally interlocked to the left and right sides. At this time, the rack stopper 50 is made by sintering hollow so as to limit the movement of the rack bar 30. ) Is fastened to the rack housing 10 by the circlip 40.

즉, 랙바(30)가 좌, 우측으로 최대로 이동 될 때 이너볼조인트(70)의 볼하우징(80)과 랙스톱퍼(50)의 축방향 외부면과 밀착되어 이 랙바(30)의 이동을 제한하게 된다. That is, when the rack bar 30 is moved to the maximum left and right, the ball housing 80 of the inner ball joint 70 and the axial outer surface of the rack stopper 50 are in close contact with each other to move the rack bar 30. Will be limited.

그러나, 이와 같이 구성된 종래의 차량용 스티어링 시스템은, 조향휠의 좌, 우 최대 회전시 이너볼조인트의 볼하우징과 랙스톱퍼가 밀착되면서 충격음이 발생하게되는데, 이 충격음이 운전자에게 불안감을 주게 되고, 더 나아가 차량의 신뢰성까지 저하시키게되는 문제점으로 작용하게 되었다. However, in the conventional steering system for a vehicle configured as described above, when the ball housing of the inner ball joint and the rack stopper come into close contact with each other during the maximum rotation of the steering wheel, the impact sound causes anxiety to the driver. Furthermore, it has been a problem to lower the reliability of the vehicle.

본 발명은 이와 같은 종래의 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 랙바의 이동을 제한하기위해 랙하우징에 설치되는 랙스톱퍼와 이너볼조인트의 볼하우징이 밀착되면서 발생되는 충격음을 방지할 수 있도록 랙스톱퍼의 구조를 개선한 차량용 스티어링 시스템의 노이즈 방지장치를 제공하는 것이다. The present invention is to solve such a conventional problem, an object of the present invention is to prevent the impact sound generated when the ball housing of the inner rack joint and the rack stopper is installed in the rack housing to limit the movement of the rack bar. It is to provide an anti-noise device for a vehicle steering system that has improved the structure of the rack stopper.

이와 같은 목적을 달성하기 위한, 본 발명의 차량용 스티어링 시스템의 노이즈 방지장치는, 중공으로 마련된 랙하우징의 내부에 축방향으로 이동 가능하게 설치되되 양단은 상기 랙하우징의 외부로 연장된 랙바와, 이 랙바의 좌, 우 이동을 제한할 수 있도록 중공으로 마련되어 랙바의 외부면과 랙하우징의 양단측 내부면 사이에 설치되는 랙스톱퍼와, 이 랙바의 양단에 결합되며 일측이 개구형성된 볼하우징과 이 볼하우징의 내부에 삽입 결합되는 볼부로 이루어진 이너볼조인트를 구비하는 차량용 스티어링 시스템에 있어서, 상기 랙스톱퍼에 상기 볼하우징과 접하는 면쪽에 원주방향으로 삽입홈을 형성하고, 상기 삽입홈에 완충부재를 삽입하되 상기 볼하우징과 접하는 면쪽으로 돌출되도록 삽입된 것을 특징으로 한다. In order to achieve the above object, the noise preventing device of the vehicle steering system of the present invention, the rack bar is provided to be movable in the axial direction inside the rack housing provided in a hollow, and both ends of the rack bar extending to the outside of the rack housing, The rack stopper is provided in a hollow so as to restrict the left and right movement of the rack bar and is installed between the outer surface of the rack bar and the inner surface of both ends of the rack housing, the ball housing coupled to both ends of the rack bar, and the ball housing having one side opening. In the vehicle steering system having an inner ball joint consisting of a ball portion that is inserted into the interior of the housing, in the rack stopper to form an insertion groove in the circumferential direction on the surface in contact with the ball housing, the buffer member is inserted into the insertion groove But it is characterized in that it is inserted to protrude toward the surface in contact with the ball housing.

이하에서는 첨부한 도면을 참조하여 본 발명에 따른 차량용 스티어링 시스템에 구비되는 랙스톱퍼의 바람직한 일실시예를 상세히 설명한다. Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the rack stopper provided in the vehicle steering system according to the present invention.

도 2는 본 발명에 따른 차량용 스티어링 시스템에 구비되는 랙스톱퍼의 설치상태를 보인 부분단면도이다. Figure 2 is a partial cross-sectional view showing an installation state of the rack stopper provided in the vehicle steering system according to the present invention.

이에 도시된 바와 같이, 좌, 우측으로 길게 중공으로 마련되어 내부에 랙바(30)가 설치되고 중간 일측에는 랙바(30)와 교차하는 방향으로 로터리밸브(20)가 설치된 랙하우징(10)이 마련된다. As shown in the figure, the rack bar 30 is provided in the hollow to the left, the right side is installed inside the rack housing 10 is provided with a rotary valve 20 in the direction intersecting the rack bar 30 on one side of the middle. .

이 랙하우징(10)의 내부에 설치되는 랙바(30)는 금속의 원봉으로서 미도시된 중간 일측에 랙이 형성되고, 중간 타측에는 피스톤(31)이 마련되어 로터리밸브(20)의 중심측에 마련된 피니언과 랙이 치합되어 동력을 전달받음과 동시에 로터리밸브(20)에서 공급되는 유압으로 인해 좌, 우측으로 동작된다. The rack bar 30 installed inside the rack housing 10 has a rack formed on one side of the middle, not shown, as a circular rod of metal, and a piston 31 is provided on the other side of the rack housing, which is provided on the center side of the rotary valve 20. The pinion and the rack are engaged with each other to receive power and operate left and right due to the hydraulic pressure supplied from the rotary valve 20.

한편, 랙하우징(10)의 외부 양측으로 연장되는 랙바(30)의 양측 선단에는 타이로드(60)가 연결 설치되는데, 이때 타이로드(60)와 랙바(30)는 이너볼조인트(70)로서 연결되며, 그리고, 이너볼조인트(70)는 랙바(30)의 양측 선단에 결합되며 일 측이 개구된 볼하우징(80)과, 이에 대응되도록 양측에 마련된 타이로드(60)의 일단에 형성되어 볼하우징(80)의 내부에 삽입 결합되는 볼부(90)로서 이루어진다. On the other hand, both ends of the rack bar 30 extending to the outer both sides of the rack housing 10, the tie rod 60 is installed, the tie rod 60 and the rack bar 30 as the inner ball joint 70 In addition, the inner ball joint 70 is coupled to both ends of the rack bar 30 and is formed at one end of the ball housing 80, one side of which is opened, and one end of the tie rod 60 provided at both sides to correspond thereto. It is made as a ball unit 90 is inserted into the ball housing 80.

또한, 조향휠이 좌, 우로 최대한 회전 되었을때 랙바(30)는 좌, 우측으로 최대로 연동되는데, 이때, 랙바(30)의 이동을 제한할 수 있도록 중공으로 만들어지는 랙스톱퍼(100)가 서클립(40)에 의해 랙하우징(10)에 체결 설치된다. In addition, when the steering wheel is rotated as far as possible to the left and right, the rack bar 30 is interlocked to the left and right to the maximum. At this time, the rack stopper 100 is made hollow so as to limit the movement of the rack bar 30. Fastened to the rack housing 10 by the clip (40).

즉, 랙바(30)가 좌, 우측으로 최대로 이동 될 때 이너볼조인트(70)의 볼하우징(80)과 랙스톱퍼(100)의 축방향 외부 돌출된 면과 밀착되면서 이 랙바(30)의 이동을 제한하게 된다. That is, when the rack bar 30 is moved to the maximum left and right, the rack housing 30 is in close contact with the ball housing 80 of the inner ball joint 70 and the axially outer protruding surface of the rack stopper 100 of the rack bar 30 Will restrict movement.

이때, 랙스톱퍼(100)는, 확대 도시된 바와 같이, 볼하우징(80)이 접하는 면쪽에 원주방향으로 삽입홈(101)을 형성하고, 외주면에는 랙하우징(10)에 서클립(40)으로 체결되도록 홈(102)을 형성한다. At this time, the rack stopper 100, as shown in the enlarged, the insertion groove 101 in the circumferential direction on the surface contacting the ball housing 80, and the outer peripheral surface to the circlip 40 in the rack housing 10 The groove 102 is formed to be fastened.

그리고, 상기한 삽입홈에는, 스틸파이프(104)에 고무(105)를 가류접착하되, 그 고무(105)는 볼하우징(80)과 접하는 쪽으로 돌출된 형상으로 마련되어 압입 끼워진다. In addition, the rubber 105 is vulcanized and bonded to the steel pipe 104 in the insertion groove, and the rubber 105 is provided in a shape protruding toward the ball housing 80 to be press-fit.

위와 같이 형성된 랙스톱퍼(100)를 랙바(30)의 외부면과 랙하우징(10)의 양단측 내부면 사이에 설치하고, 서클립(40)으로 홈(102)을 통해 랙하우징(30)에 체결한다. The rack stopper 100 formed as described above is installed between the outer surface of the rack bar 30 and the inner surfaces of both ends of the rack housing 10, and the rack clip 30 is installed in the rack housing 30 through the groove 102. Tighten.

이렇게 형성 구비된 본 발명에 따른 차량용 스티어링 시스템은, 랙바의 좌, 우 최대 이동시 이너볼조인트의 볼하우징과 랙스톱퍼가 밀착 될 때, 랙스톱퍼의 삽입홈에 압입 끼워진 고무의 돌출부분이 완충부재 역할을 하면서 1차적으로 밀착되 는 것이다. Thus formed vehicle steering system according to the present invention, when the ball housing of the inner ball joint and the rack stopper is in close contact with the left and right movement of the rack bar, the protrusion of the rubber press-fitted into the insertion groove of the rack stopper acts as a buffer member While being close to the primary.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 차량용 스티어링 시스템의 노이즈 방지장치는, 랙스톱퍼에 완충부재를 돌출형상으로 마련하여 랙스톱퍼와 이너볼조인트의 볼하우징이 접하면서 생기는 충격음을 저감시킬 수 있어 운전자가 느끼는 불안감을 해소할 수 있고, 차량의 신뢰성을 향상시키는 이점이 있다. As described above in detail, the noise preventing device of the steering system for a vehicle according to the present invention, by providing a shock absorbing member to the rack stopper protruding shape can reduce the impact sound generated when the ball housing of the rack stopper and the inner ball joint contact. Anxiety felt by the driver can be solved, and there is an advantage of improving the reliability of the vehicle.

Claims (2)

중공으로 마련된 랙하우징의 내부에 축방향으로 이동 가능하게 설치되되 양단은 상기 랙하우징의 외부로 연장된 랙바와, 이 랙바의 좌, 우 이동을 제한할 수 있도록 중공으로 마련되어 랙바의 외부면과 랙하우징의 양단측 내부면 사이에 설치되는 랙스톱퍼와, 이 랙바의 양단에 결합되며 일측이 개구형성된 볼하우징과 이 볼하우징의 내부에 삽입 결합되는 볼부로 이루어진 이너볼조인트를 구비하는 차량용 스티어링 시스템에 있어서, It is installed to be movable in the axial direction in the interior of the rack housing provided in the hollow, both ends of the rack bar extending to the outside of the rack housing, and is provided in the hollow to limit the left and right movement of the rack bar and the rack outer surface and rack In a vehicle steering system having a rack stopper provided between the inner surface of both ends of the housing, and an inner ball joint composed of a ball housing coupled to both ends of the rack bar and having an opening formed at one side thereof and a ball portion inserted into the ball housing. In 상기 랙스톱퍼에 상기 볼하우징과 접하는 면쪽에 원주방향으로 삽입홈을 형성하고, 상기 삽입홈에 완충부재를 삽입하되 상기 볼하우징과 접하는 면쪽으로 돌출되도록 삽입된 것을 특징으로 하는 차량용 스티어링 시스템의 노이즈 방지장치. Forming an insertion groove in the circumferential direction on the surface in contact with the ball housing in the rack stopper, and inserting a buffer member in the insertion groove to protrude toward the surface in contact with the ball housing, the noise prevention of the vehicle steering system Device. 제 1항에 있어서, The method of claim 1, 상기 완충부재는 스틸파이프에 고무를 가류접착하여 마련된 것을 특징으로 하는 차량용 스티어링 시스템의 노이즈 방지장치. The shock absorbing member is a noise preventing device of a vehicle steering system, characterized in that the rubber pipe is provided by vulcanizing adhesive.
KR1020010068439A 2001-11-05 2001-11-05 Noise prevention device of steering system for vehicle KR100794995B1 (en)

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KR20200045903A (en) 2018-10-23 2020-05-06 현대자동차주식회사 A mdps system and the control mehtod of it

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KR101045632B1 (en) * 2006-05-11 2011-07-04 주식회사 만도 Combined structure of rack bar and inner ball joint of power assist steering
KR101293848B1 (en) * 2009-07-15 2013-08-07 주식회사 만도 Rack and Pinion Type Steering Apparatus

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KR200156539Y1 (en) * 1995-12-29 1999-09-01 정몽규 Eject efficiency tester for washer of an automobile

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KR200156539Y1 (en) * 1995-12-29 1999-09-01 정몽규 Eject efficiency tester for washer of an automobile

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200045903A (en) 2018-10-23 2020-05-06 현대자동차주식회사 A mdps system and the control mehtod of it

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