[go: up one dir, main page]

KR100816426B1 - Hydraulic Control Valve for Hydraulic Power Assist Steering - Google Patents

Hydraulic Control Valve for Hydraulic Power Assist Steering Download PDF

Info

Publication number
KR100816426B1
KR100816426B1 KR1020060070590A KR20060070590A KR100816426B1 KR 100816426 B1 KR100816426 B1 KR 100816426B1 KR 1020060070590 A KR1020060070590 A KR 1020060070590A KR 20060070590 A KR20060070590 A KR 20060070590A KR 100816426 B1 KR100816426 B1 KR 100816426B1
Authority
KR
South Korea
Prior art keywords
valve body
input shaft
sleeve
hydraulic
steering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
KR1020060070590A
Other languages
Korean (ko)
Other versions
KR20080010529A (en
Inventor
최근수
Original Assignee
주식회사 만도
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 만도 filed Critical 주식회사 만도
Priority to KR1020060070590A priority Critical patent/KR100816426B1/en
Publication of KR20080010529A publication Critical patent/KR20080010529A/en
Application granted granted Critical
Publication of KR100816426B1 publication Critical patent/KR100816426B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
    • B62D5/083—Rotary valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/09—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by means for actuating valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application
    • B62D5/22—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for rack-and-pinion type
    • 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
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • 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
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Ocean & Marine Engineering (AREA)
  • Power Steering Mechanism (AREA)

Abstract

본 발명은 유압식 동력 보조 조향장치의 유압제어 밸브에 관한 것이다.The present invention relates to a hydraulic control valve of a hydraulic power assist steering device.

본 발명은 조향축으로부터 회전운동을 입력받는 중공 형상의 입력축, 상기 입력축에 삽입되는 토션바, 상기 입력축의 외주면에 끼워지는 밸브 몸체, 상기 입력축과 상기 밸브 몸체가 내부에 설치되는 밸브 하우징을 포함하는 유압식 동력 보조 조향장치의 유압제어 밸브에 있어서, 상기 밸브 몸체는, 작동유의 이동을 위하여 외측에서 내측으로 연통되게 형성되는 다수개의 유로공; 상기 유로공 주변의 내벽에 형성되는 챔버; 상기 챔버의 상부에 결합되는 상부 슬리브와, 상기 챔버의 하부에 결합되되 하단 원주면에 키 홈부가 형성되는 하부 슬리브로 구성되는 슬리브;를 포함하는 것을 특징으로 하는 유압식 동력 보조 조향장치의 유압제어 밸브를 제공한다.The present invention includes a hollow input shaft receiving a rotary motion from a steering shaft, a torsion bar inserted into the input shaft, a valve body fitted to the outer circumferential surface of the input shaft, a valve housing in which the input shaft and the valve body are installed therein. A hydraulic control valve of a hydraulic power assist steering device, the valve body comprising: a plurality of flow path holes formed to communicate from the outside to the inside for the movement of the working oil; A chamber formed on an inner wall around the flow path; An upper sleeve coupled to an upper portion of the chamber, and a lower sleeve coupled to a lower portion of the chamber, the lower sleeve having a key groove formed on a lower circumferential surface thereof. To provide.

본 발명에 의하면, 밸브 몸체에 키 홈부가 형성된 슬리브를 압입함으로써, 밸브 몸체에 별도의 키 홈부 제작 공정이 필요치 않게 되어 밸브 몸체의 제작이 쉬워짐은 물론 원가 절감 및 생산성을 증대시킬 수 있는 효과가 있다.According to the present invention, by press-fitting the sleeve formed with the key groove in the valve body, a separate key groove manufacturing process is not required in the valve body, making the valve body easy to manufacture, and reducing the cost and increasing the productivity. have.

조향장치, 밸브 보디, 밸브 몸체, 슬리브, 키 홈 Steering System, Valve Body, Valve Body, Sleeve, Keyway

Description

유압식 동력 보조 조향장치의 유압제어 밸브{Control Valve of Hydraulic Power Steering Apparatus}Control Valve of Hydraulic Power Steering Apparatus

도 1은 종래 기술에 따른 유압식 동력 보조 조향장치의 유압제어 밸브를 나타낸 단면도,1 is a cross-sectional view showing a hydraulic control valve of the hydraulic power assist steering device according to the prior art,

도 2는 종래 기술에 따른 유압식 동력 보조 조향장치의 밸브 몸체를 나타낸 단면도,Figure 2 is a cross-sectional view showing a valve body of the hydraulic power assisted steering device according to the prior art,

도 3a는 본 발명에 따른 유압식 동력 보조 조향장치의 유압제어 밸브를 나타낸 단면도,Figure 3a is a cross-sectional view showing a hydraulic control valve of the hydraulic power assist steering device according to the invention,

도 3b는 본 발명에 따른 유압식 동력 보조 조향장치의 밸브 몸체를 나타낸 단면도이다.Figure 3b is a cross-sectional view showing the valve body of the hydraulic power assisted steering apparatus according to the present invention.

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

300: 유압제어 밸브 310: 입력축 300: hydraulic control valve 310: input shaft

320: 토션바 322: 세레이션 320: torsion bar 322: serration

330: 밸브 몸체 332: 유로공 330: valve body 332: flow path

334: 삽입홈 336: 챔버 334: insertion groove 336: chamber

340: 피니언 하우징 342: 피니언 샤프트 340: pinion housing 342: pinion shaft

350: 슬리브 352: 상부 슬리브 350: sleeve 352: upper sleeve

354: 하부 슬리브 356: 키 홈부 354: lower sleeve 356: key groove portion

360: 다월핀360: dowel pin

본 발명은 유압식 동력 보조 조향장치의 유압제어 밸브에 관한 것이다. 더욱 상세하게는 밸브 몸체에 키 홈부가 형성된 슬리브를 압입함으로써, 밸브 몸체에 별도의 키 홈부 제작 공정이 필요치 않게 되어 밸브 몸체의 제작이 쉬워짐은 물론 원가 절감 및 생산성을 증대시킬 수 있는 유압식 동력 보조 조향장치의 유압제어 밸브에 관한 것이다.The present invention relates to a hydraulic control valve of a hydraulic power assist steering device. More specifically, by injecting a sleeve with a key groove formed in the valve body, a separate key groove manufacturing process is not required in the valve body, thereby making the valve body easier to manufacture, as well as a hydraulic power assist that can increase cost and productivity. A hydraulic control valve of a steering device.

일반적으로 조향장치는 자동차의 진행 방향을 운전자가 의도하는 바에 따라 임의로 바꾸기 위해 조작하는 장치로, 조향 휠(Steering Wheel)을 회전시켜 조향 기어에 그 회전력을 전달함으로써 바퀴의 각도를 조정하여 차량의 진행 방향을 제어한다.In general, the steering device is a device that is manipulated to change the direction of the vehicle arbitrarily according to the driver's intention, and the steering wheel is rotated to transmit the rotational force to the steering gear, thereby adjusting the angle of the wheel to advance the vehicle. To control the direction.

이와 같은 조향장치는 조향 상태의 안정성 및 부드럽고 편안한 조향감 등 안전과 함께 운전자의 편리성을 추구하는 방향으로 연구개발이 이루어지고 있다. 이러한 개발 추세에 따라 운전자의 조향감을 향상시키기 위한 방법으로 유압식 또는 전동식 등의 다양한 동력 보조 조향장치들이 개발되고 있는데, 유압식 동력 보조 조향장치(HPS: Hydraulic Power Steering System)는 엔진으로부터 회전력을 받아 유압 펌프를 작동시키고 유압 펌프에서 만들어진 유압을 조향 휠 혹은 조향축의 회전에 따라 적절한 양을 적시에 구동식 피스톤에 보내어 조향장치를 움직이게 하는 방식이고, 전동식 동력 보조 조향장치(EPS: Electrical Power Steering System)는 핸들 조타에 따른 조향 토크 및 차속을 감지하여 차량의 운행조건에 따라 ECU(Electronic Control Unit)에서 모터를 작동시켜 핸들 조타시 조향축의 회전력에 조력을 배가시킬 수 있도록 한 것이다.Such a steering device has been researched and developed in the direction of pursuing the convenience of the driver with safety such as the stability of the steering state and the soft and comfortable steering feeling. According to this development trend, various power assist steering devices, such as hydraulic or electric, are being developed as a way to improve the steering feeling of the driver. The hydraulic power steering system (HPS) receives hydraulic power from the engine and receives a hydraulic pump And the hydraulic power from the hydraulic pump is sent to the driven piston in a timely manner according to the rotation of the steering wheel or steering shaft, and the electric power steering system (EPS) handles the steering wheel. It detects steering torque and vehicle speed by steering and operates the motor in ECU (Electronic Control Unit) according to the driving conditions of the vehicle so that the steering power can be doubled to the steering shaft's rotation force when steering the steering wheel.

여기서, 유압식 동력 보조 조향장치는 조향축의 하단부에 설치되어 조향시 작동유의 유동 방향을 제어하는 유압제어 밸브와 유압제어 밸브의 작동에 따라 차륜을 조향시키는 타이로드에 작용력을 인가하는 작동 실린더를 포함하여 구성된다.Here, the hydraulic power assist steering device includes a hydraulic control valve installed at the lower end of the steering shaft to control the flow direction of the hydraulic fluid during steering and an operation cylinder for applying an action force to the tie rod for steering the wheel according to the operation of the hydraulic control valve. It is composed.

이와 같은 유압식 동력 보조 조향장치는 조향 휠에 가해진 조작력에 의해 조향축이 회전하면서 유압제어 밸브에 설치된 입력축을 회전시키면, 오일 펌프에서 유압관로를 통해 작동유를 공급관으로 공급하게 되고 공급된 작동유는 좌측 포트, 또는 우측 포트를 통해 작동 실린더 내 좌우측으로 형성된 압력실에 선택적으로 공급되어 조향 조작력을 보조하게 한다.The hydraulic power assist steering device rotates the input shaft installed in the hydraulic control valve while the steering shaft is rotated by the operating force applied to the steering wheel. The hydraulic oil is supplied from the oil pump to the supply pipe through the hydraulic pipe. Or, via the right port, is selectively supplied to the pressure chambers formed on the left and right sides of the working cylinder to assist the steering operation force.

도 1은 종래 기술에 따른 유압식 동력 보조 조향장치의 유압제어 밸브를 나타낸 단면도이고, 도 2는 종래 기술에 따른 유압식 동력 보조 조향장치의 밸브 몸체를 나타낸 단면도이다. 이에 도시된 바와 같이, 유압제어 밸브(100)는 조향축(미도시)으로부터 회전운동을 입력받는 중공 형상의 입력축(130), 하단부가 피니언 샤프트(160)와 압입 방식으로 결합되며 입력축(130)에 삽입되는 토션바(132), 입력축(130)의 외주면에 끼워지는 밸브 몸체(150), 입력축(130)과 밸브 몸체(150)가 내부에 설치되는 밸브 하우징(140)을 포함하여 구성된다. 그리고 랙 바(170)의 후면부에는 랙 바(170)와 피니언 샤프트(160)의 유격을 감소시켜 원활하게 동력이 전달 될 수 있도록 서포트 요크(180)가 구성된다.1 is a cross-sectional view showing a hydraulic control valve of the hydraulic power assisted steering apparatus according to the prior art, Figure 2 is a cross-sectional view showing a valve body of the hydraulic power assisted steering apparatus according to the prior art. As shown in this, the hydraulic control valve 100 is a hollow input shaft 130 receives a rotary motion from a steering shaft (not shown), the lower end is coupled to the pinion shaft 160 in a press-fit method and the input shaft 130 The torsion bar 132 is inserted into the valve body 150 is fitted to the outer peripheral surface of the input shaft 130, the input shaft 130 and the valve body 150 is configured to include a valve housing 140 is installed therein. In addition, the support yoke 180 is configured at the rear portion of the rack bar 170 to reduce the play between the rack bar 170 and the pinion shaft 160 so that power can be transmitted smoothly.

여기서, 밸브 몸체(150)는 방향성이 제어된 작동유의 압력을 상승시키도록 구성되는 것으로서, 작동유의 이동을 위한 밸브 몸체(150)의 외측으로부터 내측까지 연통되게 형성되는 다수개의 유로공(202), 유로공(202) 주변의 밸브 몸체(150) 내측에는 내벽을 깎아 만든 챔버(204), 밸브 몸체(150)의 상, 하부에 구비되어 밸브 몸체에 삽입되는 슬리브(210) 및 피니언 샤프트(160)와 고정하기 위해 다월핀(190)이 삽입되는 키 홈부(152)를 포함하여 구성된다.Here, the valve body 150 is configured to increase the pressure of the directional controlled hydraulic fluid, a plurality of flow path holes 202 are formed to communicate from the outside to the inside of the valve body 150 for the movement of the hydraulic fluid, Inside the valve body 150 around the flow path 202, a chamber 204 made by shaving an inner wall, a sleeve 210 and a pinion shaft 160 provided on the upper and lower portions of the valve body 150 and inserted into the valve body. It comprises a key groove 152 is inserted into the dowel pin 190 is fixed.

여기서, 다월핀(190)은 분할된 다수의 부품을 똑바로 정렬하기 위해 맞춤면에 돌기를 형성한 핀을 말하는 것으로 평행핀 또는 'T'자 형상의 핀이며, 피니언 샤프트(160)에 일측이 삽입되어 고정되어 있으며, 타측은 피니언 샤프트(160)의 외부로 돌출되어 돌기를 형성한다. 또한, 밸브 몸체(150)에는 '요(凹)'자형 키 홈부(152)가 형성되어 있어 다월핀(190)과 결합할 수 있는 구조로 되어 있다.Here, the dowel pin 190 refers to a pin formed with a projection on the alignment surface in order to align the plurality of divided parts straight, parallel pin or 'T' shaped pin, one side is inserted into the pinion shaft 160 The other side protrudes to the outside of the pinion shaft 160 to form a protrusion. In addition, the valve body 150 has a 'yo' shaped key groove 152 is formed to be coupled to the dowel pin 190.

하지만, 밸브 몸체(150)의 키 홈부(152)를 브로치 가공 후 열처리를 하여 경도를 향상시킨 다음, 밸브 몸체(150)의 내주면에 슬리브(210)를 삽입해야 하기 때문에 밸브 몸체(150)의 키 홈부(152)와 내경부는 각각 조립이 가능하도록 정밀 가공을 해야 하는 문제점이 있었다.However, the key groove 152 of the valve body 150 is broached and heat treated to improve hardness, and then the sleeve 210 is inserted into the inner circumferential surface of the valve body 150. The groove portion 152 and the inner diameter portion had a problem that must be precisely processed so that each can be assembled.

이러한 문제점을 해결하기 위하여 본 발명은 밸브 몸체에 키 홈부가 형성된 슬리브를 압입함으로써, 밸브 몸체에 별도의 키 홈부 제작 공정이 필요치 않게 되어 밸브 몸체의 제작이 쉬워짐은 물론 원가 절감 및 생산성을 증대시키는 데 그 목 적이 있다.In order to solve this problem, the present invention press-fits the sleeve formed with the key groove in the valve body, so that a separate key groove manufacturing process is not required on the valve body, making the valve body easy to manufacture, as well as increasing the cost and productivity. I have that purpose.

이러한 목적을 달성하기 위하여 본 발명은, 조향축으로부터 회전운동을 입력받는 중공 형상의 입력축, 상기 입력축에 삽입되는 토션바, 상기 입력축의 외주면에 끼워지는 밸브 몸체, 상기 입력축과 상기 밸브 몸체가 내부에 설치되는 밸브 하우징을 포함하는 유압식 동력 보조 조향장치의 유압제어 밸브에 있어서, 상기 밸브 몸체는 작동유의 이동을 위하여 외측에서 내측으로 연통되게 형성되는 다수개의 유로공; 상기 유로공 주변의 내벽에 형성되는 챔버; 상기 챔버의 상부에 결합되는 상부 슬리브와, 상기 챔버의 하부에 결합되되 하단 원주면에 키 홈부가 형성되는 하부 슬리브로 구성되는 슬리브;를 포함하는 것을 특징으로 하는 유압식 동력 보조 조향장치의 유압제어 밸브를 제공한다.In order to achieve the above object, the present invention provides a hollow input shaft for receiving rotational motion from a steering shaft, a torsion bar inserted into the input shaft, a valve body fitted to an outer circumferential surface of the input shaft, the input shaft and the valve body therein. A hydraulic control valve of a hydraulic power assisted steering apparatus including a valve housing installed, the valve body comprising: a plurality of flow path holes formed to communicate from the outside to the inside for the movement of the working oil; A chamber formed on an inner wall around the flow path; An upper sleeve coupled to an upper portion of the chamber, and a lower sleeve coupled to a lower portion of the chamber, the lower sleeve having a key groove formed on a lower circumferential surface thereof. To provide.

이하, 본 발명의 실시예를 첨부도면들을 참조하여 상세히 설명한다. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3a는 본 발명에 따른 유압식 동력 보조 조향장치의 유압제어 밸브를 나타낸 단면도이고, 도 3b는 본 발명에 따른 유압식 동력 보조 조향장치의 밸브 몸체를 나타낸 단면도이다. 도시된 바와 같이, 본 발명에 따른 유압제어 밸브(300)는 운전 자가 조향 휠(미도시)을 조종할 때 조향 휠의 회전 변위에 따라 유압을 작동 실린더(미도시)로 선택적으로 공급하는 역할을 하는 것으로서, 유니버설 조인트(미도시)와 연결되는 입력축(310), 입력축(310)의 내부에 삽입되는 토션바(320), 밸브 몸체(330) 및 피니언 하우징(340)을 포함하여 구성된다.Figure 3a is a sectional view showing a hydraulic control valve of the hydraulic power assist steering device according to the present invention, Figure 3b is a sectional view showing a valve body of the hydraulic power assist steering device according to the present invention. As shown, the hydraulic control valve 300 according to the invention serves to selectively supply the hydraulic pressure to the working cylinder (not shown) according to the rotational displacement of the steering wheel when the operator controls the steering wheel (not shown). As such, it comprises an input shaft 310 connected to the universal joint (not shown), a torsion bar 320 inserted into the input shaft 310, the valve body 330 and the pinion housing 340.

입력축(310)은 조향축(미도시)과 연결되어 있으며 내부에는 토션바(320)가 삽입될 수 있도록 중공의 형상을 가지고 입력축(310)의 상단부에는 조향축의 유니버설 조인트와 연결되며 입력축(310)의 하단부는 피니언 샤프트(342)의 상단부에 결합된다.The input shaft 310 is connected to a steering shaft (not shown) and has a hollow shape so that the torsion bar 320 can be inserted therein, and the upper end of the input shaft 310 is connected to the universal joint of the steering shaft and the input shaft 310. The lower end of is coupled to the upper end of the pinion shaft 342.

토션바(320)는 입력축(310)의 내부에 삽입되며 하부에는 후술하게 될 피니언 샤프트(342)와 압입 방식으로 결합하기 위한 세레이션(322)이 형성되어 있다. The torsion bar 320 is inserted into the input shaft 310 and has a serration 322 formed therein for coupling with the pinion shaft 342 which will be described later in a press-fit manner.

밸브 몸체(330)는 토션바(320)가 삽입되는 입력축(310)이 그 내부로 설치될 수 있도록 중공의 형상으로 형성되어 있으며 작동 실린더로 공급되는 작동유를 제어하는 역할을 하는 것으로 작동유가 이동하는 다수 개의 유로공(332)이 형성된다.The valve body 330 is formed in a hollow shape so that the input shaft 310 into which the torsion bar 320 is inserted can be installed therein, and serves to control the hydraulic oil supplied to the working cylinder. A plurality of flow path holes 332 are formed.

이와 같은 밸브 몸체(330)는 내부에 입력축(310)이 삽입되는 삽입홈(334), 밸브 몸체(330)의 내주면을 깎아 형성하는 챔버(336) 및 삽입홈(334)의 상, 하부에 구비되되 키 홈부(356)가 형성된 슬리브(350)를 포함하여 구성된다.Such a valve body 330 is provided in the upper and lower portions of the insertion groove 334 into which the input shaft 310 is inserted, the chamber 336 and the insertion groove 334 by shaping the inner circumferential surface of the valve body 330. However, the key groove 356 is formed by including a sleeve 350 is formed.

슬리브(350)는 입력축(310)이 밸브 몸체(330)의 내주면에 직접 밀착되는 것을 방지함은 물론 작동유가 외부로 누설되는 것을 방지하는 것으로 마찰 저항력이 좋은 재질을 사용하여 일정 두께로 형성되며 중공의 형상을 취하며 밸브 몸체(330)의 상부에 구비되는 상부 슬리브(352)와 밸브 몸체(330)의 하부에 구비되는 하부 슬리브(354)를 포함하여 구성된다. 여기서, 하부 슬리브(354)는 상부 슬리브(352)의 크기보다 크게 형성되며, 다월핀(360)이 삽입되는 키 홈부(356)가 형성되어 있다. The sleeve 350 prevents the input shaft 310 from coming into direct contact with the inner circumferential surface of the valve body 330 and also prevents leakage of hydraulic oil to the outside. The upper sleeve 352 is provided on the upper portion of the valve body 330 and the lower sleeve 354 is provided on the lower portion of the valve body 330 is configured. Here, the lower sleeve 354 is formed larger than the size of the upper sleeve 352, the key groove portion 356 is formed is inserted into the dowel pin (360).

이러한 슬리브(350)는 밸브 몸체(330)에 형성된 삽입홈(334)에 압입 방식으로 결합됨이 바람직하나 이에 한정하는 것은 아니다.The sleeve 350 is preferably coupled to the insertion groove 334 formed in the valve body 330 by a press-fit method, but is not limited thereto.

키 홈부(356)는 밸브 몸체(330)를 피니언 하우징(340)에 고정시키기 위해 구비되는 다월핀(360)이 밸브 몸체(330)에 삽입될 수 있도록 형성되는 것으로 밸브 몸체(330)의 하부에 구비되는 하부 슬리브(354)의 하단 원주면에 형성된다. 이와 같은 키 홈부(356)는 밸브 몸체(330)가 피니언 하우징(340)에 안정적으로 고정될 수 있도록 3.5 ~ 3.7cm의 폭으로 형성됨이 바람직하다.The key groove 356 is formed so that the dowel pin 360 provided to fix the valve body 330 to the pinion housing 340 can be inserted into the valve body 330. It is formed on the lower circumferential surface of the lower sleeve 354 is provided. The key groove 356 is preferably formed in a width of 3.5 ~ 3.7cm so that the valve body 330 can be stably fixed to the pinion housing 340.

여기서, 다월핀(360)은 일측이 피니언 샤프트(342)의 상단부에 삽입되어 고정되며, 타측이 피니언 샤프트(342)의 상단부로부터 상향 돌출되게 구비된다. 이와 같이 피니언 샤프트(342)에 고정되는 다월핀(360)은 밸브 몸체(330)에 압입되는 하부 슬리브(354)의 키 홈부(356)에 삽입되어 밸브 몸체(330)가 피니언 샤프트(342)에 고정되는 것이다. 즉, 밸브 몸체(330)에 별도의 키 홈부(356)를 가공하지 않고 하부 슬리브(354)에만 키 홈부(356)를 가공하기 때문에 다월핀(360)은 축 방향으로 피니언 하우징(340)에 고정되어 하부 슬리브(354)에 삽입 고정되는 것이다.Here, the dowel pin 360 has one side inserted into and fixed to the upper end of the pinion shaft 342 and the other side is provided to protrude upward from the upper end of the pinion shaft 342. As such, the dowel pin 360 fixed to the pinion shaft 342 is inserted into the key groove 356 of the lower sleeve 354 pressed into the valve body 330 such that the valve body 330 is connected to the pinion shaft 342. It is fixed. That is, the dowel pin 360 is fixed to the pinion housing 340 in the axial direction because the key groove 356 is processed only in the lower sleeve 354 without the separate key groove 356 in the valve body 330. To be fixed to the lower sleeve 354.

이와 같이 구성된 본 발명에 따른 밸브 몸체(330)는 하부 슬리브(354)에 다월핀(360)이 삽입되는 키 홈부(356)를 형성하여 피니언 하우징(340)에 다월핀(360)을 통해 고정됨으로써, 밸브 몸체(330)에 키 홈부(356)를 형성하기 위해 실시했던 브로치 가공, 열처리 및 정밀 가공 등의 다양하고 복잡한 공정들이 불필요하게 되어 밸브 몸체(330)의 제작이 쉬워짐은 물론 원가 절감 및 생산성을 증대시킬 수 있는 것이다.The valve body 330 according to the present invention configured as described above forms a key groove 356 into which the dowel pin 360 is inserted into the lower sleeve 354, thereby being fixed to the pinion housing 340 through the dowel pin 360. In addition, various complicated processes, such as broaching, heat treatment, and precision machining, which are performed to form the key groove 356 in the valve body 330, are unnecessary, thereby making the valve body 330 easy to manufacture, and reducing cost. Productivity can be increased.

이상의 설명은 본 발명의 기술 사상을 예시적으로 설명한 것에 불과한 것으로서, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 다양한 수정 및 변형이 가능할 것이다. 따라서, 본 발명에 개시된 실시예들은 본 발명의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예에 의하여 본 발명의 기술 사상의 범위가 한정되는 것은 아니다. 본 발명의 보호 범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다. The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

이상에서 설명한 바와 같이 본 발명에 의하면, 밸브 몸체에 키 홈부가 형성된 슬리브를 압입함으로써, 밸브 몸체에 별도의 키 홈부 제작 공정이 필요치 않게 되어 밸브 몸체의 제작이 쉬워짐은 물론 원가 절감 및 생산성을 증대시킬 수 있는 효과가 있다.As described above, according to the present invention, by press-fitting the sleeve formed with the key groove in the valve body, a separate key groove manufacturing process is not required in the valve body, making the valve body easy to manufacture, and reducing the cost and increasing productivity. It can be effected.

Claims (1)

조향축으로부터 회전운동을 입력받는 중공 형상의 입력축, 상기 입력축에 삽입되는 토션바, 상기 입력축의 외주면에 끼워지는 밸브 몸체, 상기 입력축과 상기 밸브 몸체가 내부에 설치되는 밸브 하우징을 포함하는 유압식 동력 보조 조향장치의 유압제어 밸브에 있어서,Hydraulic power assistance including a hollow input shaft receiving a rotary motion from a steering shaft, a torsion bar inserted into the input shaft, a valve body fitted to an outer circumferential surface of the input shaft, and a valve housing in which the input shaft and the valve body are installed. In the hydraulic control valve of the steering device, 상기 밸브 몸체는,The valve body, 작동유의 이동을 위하여 외측에서 내측으로 연통되게 형성되는 다수개의 유로공; A plurality of flow path holes formed to communicate from the outside to the inside for the movement of the working oil; 상기 유로공 주변의 내벽에 형성되는 챔버;A chamber formed on an inner wall around the flow path; 상기 챔버의 상부에 결합되는 상부 슬리브와, 상기 챔버의 하부에 결합되되 하단 원주면에 키 홈부가 형성되는 하부 슬리브로 구성되는 슬리브;A sleeve comprising an upper sleeve coupled to an upper portion of the chamber and a lower sleeve coupled to a lower portion of the chamber and having a key groove formed on a lower circumferential surface thereof; 를 포함하는 것을 특징으로 하는 유압식 동력 보조 조향장치의 유압제어 밸브.Hydraulic control valve of the hydraulic power assist steering device comprising a.
KR1020060070590A 2006-07-27 2006-07-27 Hydraulic Control Valve for Hydraulic Power Assist Steering Expired - Fee Related KR100816426B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020060070590A KR100816426B1 (en) 2006-07-27 2006-07-27 Hydraulic Control Valve for Hydraulic Power Assist Steering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060070590A KR100816426B1 (en) 2006-07-27 2006-07-27 Hydraulic Control Valve for Hydraulic Power Assist Steering

Publications (2)

Publication Number Publication Date
KR20080010529A KR20080010529A (en) 2008-01-31
KR100816426B1 true KR100816426B1 (en) 2008-03-27

Family

ID=39222509

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020060070590A Expired - Fee Related KR100816426B1 (en) 2006-07-27 2006-07-27 Hydraulic Control Valve for Hydraulic Power Assist Steering

Country Status (1)

Country Link
KR (1) KR100816426B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101138122B1 (en) * 2008-06-17 2012-04-23 한라스택폴 주식회사 The Pinion Valve Body and The Pinion Valve Assembly for Vehicle Equipped with The Same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020106438B4 (en) 2020-03-10 2022-03-31 Danfoss Power Solutions Aps Fluid control device, in particular as part of a hydraulic steering unit
DE102020106437B4 (en) 2020-03-10 2024-09-26 Danfoss Power Solutions Aps Fluid control device, in particular as part of a hydraulic steering unit
DE102020106440B4 (en) * 2020-03-10 2024-08-01 Danfoss Power Solutions Aps Hydraulic steering unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08119126A (en) * 1994-10-24 1996-05-14 Jidosha Kiki Co Ltd Power steering device
KR20020007733A (en) * 2000-07-18 2002-01-29 김재복 Structure of power steering stub shaft
KR20060053291A (en) * 2004-11-13 2006-05-22 주식회사 만도 Valve Body Structure of Steering System Hydraulic Control Valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08119126A (en) * 1994-10-24 1996-05-14 Jidosha Kiki Co Ltd Power steering device
KR20020007733A (en) * 2000-07-18 2002-01-29 김재복 Structure of power steering stub shaft
KR20060053291A (en) * 2004-11-13 2006-05-22 주식회사 만도 Valve Body Structure of Steering System Hydraulic Control Valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101138122B1 (en) * 2008-06-17 2012-04-23 한라스택폴 주식회사 The Pinion Valve Body and The Pinion Valve Assembly for Vehicle Equipped with The Same

Also Published As

Publication number Publication date
KR20080010529A (en) 2008-01-31

Similar Documents

Publication Publication Date Title
CN107226129A (en) A kind of new automobile electric power-assisted steering apparatus
KR100816426B1 (en) Hydraulic Control Valve for Hydraulic Power Assist Steering
US8307852B2 (en) Pinion valve body and pinion valve assembly for vehicle equipped with the same
JP3172720B2 (en) Assembling method of power steering control valve
KR20090021719A (en) Damping Coupler and Reducer Equipped with It
KR101143752B1 (en) Pinion valve assembly for hydraulic power steering system
KR20080083965A (en) Hydraulic Power Assisted Steering
JP3763561B2 (en) Hydraulic control valve for power steering device
KR101139998B1 (en) Power Steering Apparatus for Automotive Vehicle
JP2978338B2 (en) Steering gear
JP2006123852A (en) Rack bar
JP2006143186A (en) Electric power steering device
KR20110125511A (en) Pinion valve assembly for hydraulic power assist steering
KR100707002B1 (en) Hydraulic Control Valve of Vehicle Steering System
KR101171420B1 (en) The Pinion Valve Body and The Pinion Valve Assembly for Vehicle Equipped with The Same
KR20080009868A (en) Hydraulic control valve for vehicle power assist steering
KR100707281B1 (en) Hydraulic oil vibration reduction device
KR100646397B1 (en) Hydraulic power assist steering with input shaft and its
KR100816425B1 (en) Feed tube connection valve for hydraulic power assisted steering
KR20080013019A (en) Noise Reduction Hydraulic Control Valve for Automotive Power Steering System
JP2999929B2 (en) Control valve for hydraulic power steering device and method of manufacturing the same
KR20050029758A (en) Oil pressure control valve of power sterring system for vehicle
JP3825947B2 (en) Method and structure for fixing torsion bar and output shaft of steering device
JPH0565751U (en) Power steering device
KR20110060528A (en) Reduction gear of electric power assist steering device and electric power assist steering device using same

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

St.27 status event code: A-0-1-A10-A12-nap-PA0109

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

D13-X000 Search requested

St.27 status event code: A-1-2-D10-D13-srh-X000

D14-X000 Search report completed

St.27 status event code: A-1-2-D10-D14-srh-X000

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

St.27 status event code: A-2-2-U10-U11-oth-PR1002

Fee payment year number: 1

PG1601 Publication of registration

St.27 status event code: A-4-4-Q10-Q13-nap-PG1601

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 4

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 5

FPAY Annual fee payment

Payment date: 20130121

Year of fee payment: 6

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 6

FPAY Annual fee payment

Payment date: 20131223

Year of fee payment: 7

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 7

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R11-asn-PN2301

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R14-asn-PN2301

FPAY Annual fee payment

Payment date: 20141222

Year of fee payment: 8

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 8

FPAY Annual fee payment

Payment date: 20151222

Year of fee payment: 9

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 9

P22-X000 Classification modified

St.27 status event code: A-4-4-P10-P22-nap-X000

LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee

St.27 status event code: A-4-4-U10-U13-oth-PC1903

Not in force date: 20170319

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

PC1903 Unpaid annual fee

St.27 status event code: N-4-6-H10-H13-oth-PC1903

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 20170319

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R13-asn-PN2301

St.27 status event code: A-5-5-R10-R11-asn-PN2301

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R13-asn-PN2301

St.27 status event code: A-5-5-R10-R11-asn-PN2301