KR100264910B1 - Pressure control valve construction for automobile - Google Patents

Pressure control valve construction for automobile Download PDF

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Publication number
KR100264910B1
KR100264910B1 KR1019970046701A KR19970046701A KR100264910B1 KR 100264910 B1 KR100264910 B1 KR 100264910B1 KR 1019970046701 A KR1019970046701 A KR 1019970046701A KR 19970046701 A KR19970046701 A KR 19970046701A KR 100264910 B1 KR100264910 B1 KR 100264910B1
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South Korea
Prior art keywords
ball
valve body
groove
control valve
input shaft
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KR1019970046701A
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Korean (ko)
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KR19990025170A (en
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변종식
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밍 루
주식회사만도
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Priority to KR1019970046701A priority Critical patent/KR100264910B1/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
    • B62D6/02—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to vehicle speed

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

Abstract

PURPOSE: Hydraulic pressure control valve structure is provided to enhance riding comfort by installing a ball housing and an elastic spring and by heavily adjusting steering force with dual torque. CONSTITUTION: Hydraulic pressure control valve structure consists of a valve body(24); a pinion gear(23) connected to a torsion bar(26) with a combining groove(22); and an input shaft(21) installed between the valve body and the pinion gear with a combining portion(25) corresponding to the combining groove. The valve structure also contains a V-shaped groove(28) in the lower portion of a circumference piece(27) formed in the center of the input shaft; a slip groove(30) partially cut in both sides of an upper circumference(29) of the valve body; a ball housing(34) having a ball fixing portion(31) embedding a ball(32) and a connecting pin(33) protruded from the outer circumference; and an elastic spring(35) supported by the ball housing and the valve body. The ball slides between the V-shaped groove and the ball fixing portion. Due to the ball housing and the elastic spring, torque is dually generated to heavily adjust steering force.

Description

자동차용 유압제어 밸브구조Hydraulic Control Valve Structure for Automobile

본 발명은 자동차의 파워 스티어링 시스템에 설치하여 스티어링 휠을 부드럽게 작동시킬 수 있는 자동차용 유압제어 밸브구조에 관한 것으로서, 상세하게는 차량의 중 고속시에 핸들의 움직임을 안정화시키도록 축방향의 반력을 통하여 핸들조작을 가볍게하거나 무겁게 조절함으로써 운전자에게 안전감을 주고 승차감을 향상시킬 수 있도록 한 자동차용 유압제어 밸브구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic control valve structure for a vehicle that can be installed in a power steering system of a vehicle to smoothly operate a steering wheel. More particularly, the present invention relates to an axial reaction force to stabilize a handle movement at a high speed of a vehicle. The present invention relates to a hydraulic control valve structure for a vehicle, which provides safety to a driver by lightly or heavily adjusting a handle operation.

일반적으로 자동차의 파워 스티어링장치를 설치하여 핸들의 조작성을 원활하게 하고 있으나, 이러한 파워 스티어링장치는 고속주행시 핸들의 조작이 가볍기 때문에 운전에 상당한 주의가 요구된다.In general, the steering wheel of the vehicle is installed to smoothly operate the steering wheel. However, since the steering of the steering wheel is light in high-speed driving, considerable attention is required in driving.

따라서, 고속시 핸들의 조작을 무겁게 할수 있는 파워스티어링 장치의 유압제어 밸브는 랙과 물려지는 피니언기어와 인풋샤프트를 토션바에 의해 일체로 형성 연결하고 인풋샤프트의 원주면에는 밸브 바디를 설치하되 밸브바디의 원주면에는 동력실린더로 작동유가 공급될 수 있도록 하는 공급홀이 형성 되어 있으며 스티어링 휠을 회전시키면 랙에 타이어의 전진 저항이 작용하고 있기 때문에 토션바가 비틀리게 되는 것이다.Therefore, the hydraulic control valve of the power steering system, which can handle the handle at high speed, is integrally formed by connecting the rack, the pinion gear and the input shaft by the torsion bar, and the valve body is installed on the circumferential surface of the input shaft. The circumferential surface of the torsion bar is formed because the supply hole for the hydraulic oil to be supplied to the power cylinder and the steering wheel is rotated because the forward resistance of the tire acts on the rack.

따라서, 밸브바디의 홈과 인풋샤프트의 콘트롤 엣지에 의하여 동력실린더로 공급되는 유압이 랙의 피스톤을 밀어 조향에 의한 토오크력을 부드럽게 하여주게 되는 것이다.Therefore, the hydraulic pressure supplied to the power cylinder by the groove of the valve body and the control edge of the input shaft pushes the piston of the rack to soften the torque force by steering.

이와같은 목적으로 이용되는 종래의 파워 스티어링 유압제어 밸브(1)를 보면 도 1에서 도시된 바와같이 피니언기어(3)와 인풋샤프트(2)와, 피니언기어(3)를 연결하는 토션바(6)와, 작동유의 방향을 결정하는 콘트롤 엣지가 가공된 인풋샤프트(2)와 원주면에 각 포트를 막아주는 실링(5)이 설치된 밸브바디(4)로 구성된다.In the conventional power steering hydraulic control valve 1 used for this purpose, a torsion bar 6 connecting the pinion gear 3 and the input shaft 2 and the pinion gear 3 as shown in FIG. ) And a valve body (4) provided with an input shaft (2) on which a control edge for determining the direction of the hydraulic oil is processed, and a seal (5) for blocking each port on the circumferential surface.

따라서, 상기와 같이 구성되는 종래의 유압제어 밸브(1)는 토션바(6)의 강성 때문에 작은 입력 토오크에도 압력이 변하여 비틀림이 발생하여 직진 주행시 주행 안정성을 유지하지 못하여 운전자에게 불안감을 주게 되거나 토오크력이 인풋샤프트와 피니언기어 사이에서 발생되어 피니언기어와 연결된 밸브바디에 전달됨으로 인해 토오크력이 커야 되므로 밸브의 공간부에 걸리는 압력이 커 밸브바디내의 유체이동이 원활하지 못하게 되는 등 여러 문제점이 있었다.Therefore, in the conventional hydraulic control valve 1 configured as described above, due to the rigidity of the torsion bar 6, the pressure is changed even at a small input torque, causing torsion, which causes the driver to be unstable or maintains driving stability when driving straight. Since the force is generated between the input shaft and the pinion gear and transmitted to the valve body connected to the pinion gear, the torque force has to be large.Therefore, there are various problems such as the fluid pressure in the valve body not being smooth due to the large pressure on the valve space. .

본 발명은 상기와 같은 종래의 문제점을 보완하고자 안출된 것으로서, 밸브바디와 피니언기어가 연결되는 사이로 결합되는 인풋샤프트와의 연결부위에 복수의 볼이 내장된 볼하우징을 형성하고 그 하측으로 볼하우징과 밸브바디의 내측 둘레부에 지지되는 탄성스프링을 형성하여 차량의 중,고속 주행시 이중으로 토오크를 발생시켜 조향력을 무겁게 조절함으로써 운전자에게 안전감을 주고 승차감을 향상시킬 수 있도록 한 자동차용 유압제어 밸브구조를 제공하는 데 그 목적이 있다.The present invention has been made in view of the above-mentioned conventional problems, forming a ball housing in which a plurality of balls are built in the connection portion of the input shaft coupled between the valve body and the pinion gear is connected to the lower ball housing And an elastic spring supported on the inner circumference of the valve body to generate a double torque during heavy and high speed driving of the vehicle to adjust the steering force heavily so that the driver can feel safe and improve the riding comfort. The purpose is to provide.

도1 은 종래의 유압제어 밸브 구조를 보인 단면도.1 is a cross-sectional view showing a conventional hydraulic control valve structure.

도2 는 본 발명에 따른 유압제어 밸브의 분해사시도.Figure 2 is an exploded perspective view of the hydraulic control valve according to the present invention.

도3 은 본 발명에 따른 유압제어 밸브의 결합단면도.Figure 3 is a cross-sectional view of the combined hydraulic control valve according to the present invention.

***도면의 주요부분에 대한 부호의 설명****** Explanation of symbols for main parts of drawing ***

1(20):유압제어밸브, 2(21):인풋샤프트, 22:결합홈, 3(23):피니언기어, 4(24):밸브바디, 25:결합부, 5:실링, 6(26):토션바, 27:둘레편, 28:V홈, 29:둘레면, 30:슬립홈, 31:볼고정부, 32:볼, 33:연결핀, 34:볼하우징, 35:탄성스프링1 (20): Hydraulic control valve, 2 (21): Input shaft, 22: Coupling groove, 3 (23): Pinion gear, 4 (24): Valve body, 25: Coupling part, 5: Sealing, 6 (26 ): Torsion bar, 27: circumference, 28: V groove, 29: circumference, 30: slip groove, 31: volgogogo, 32: ball, 33: connecting pin, 34: ball housing, 35: elastic spring

상기 목적을 달성하기 위한 본 발명의 특징은 밸브바디와, 토션바가 연결되고 상측에 결합홈이 형성된 피니언기어와, 상기 밸브바디와 피니언기어 사이에 설치되고 상기 결합홈에 대응하는 결합부가 그 하측에 형성된 인풋샤프트로 구비된 자동차용 유압제어 밸브구조에 있어서, 상기 인풋샤프트의 중간부에 형성된 둘레편의 하부에 형성된 V홈과; 상기 밸브바디의 상측 둘레면에 양측으로 일부 절개된 슬립홈과; 상기 V홈에 대응하는 볼고정부가 그 상측에 형성되고, 상기 볼고정부로 볼이 내장되며, 그 외측둘레면에서 돌출된 연결핀이 형성된 볼하우징; 및Features of the present invention for achieving the above object is a pinion gear is connected to the valve body, the torsion bar and the coupling groove is formed on the upper side, the coupling portion installed between the valve body and the pinion gear and corresponding to the coupling groove on the lower side A hydraulic control valve structure for an automobile provided with an input shaft, comprising: a V groove formed at a lower portion of a circumferential portion formed at an intermediate portion of the input shaft; A slip groove partially cut into both sides of an upper circumferential surface of the valve body; A ball housing in which a ball fixing portion corresponding to the V groove is formed at an upper side thereof, the ball is embedded in the ball fixing portion, and a connection pin protruding from an outer circumferential surface thereof is formed; And

상기 볼하우징의 하측과 밸브바디의 내측에 지지되도록 형성된 탄성스프링을; 포함하여 차량의 중,고속 주행시 조향력을 조절케 하는 것을 특징으로 하는 자동차용 유압제어 밸브구조를 제공하게 된다.An elastic spring formed to be supported by the lower side of the ball housing and the inner side of the valve body; Including a vehicle hydraulic control valve structure characterized in that to adjust the steering force during high-speed driving.

이하, 첨부도면을 참조하여 본 발명에 따른 자동차의 유압제어 밸브구조를 설명하면 다음과 같다.Hereinafter, the hydraulic control valve structure of a vehicle according to the present invention with reference to the accompanying drawings.

첨부도면 중, 도2 는 본 발명에 따른 유압제어 밸브의 분해사시도, 도3 은 본 발명에 따른 유압제어 밸브의 결합단면도로서, 밸브바디(24)와, 토션바(26)가 연결되고 상측에 결합홈(22)이 형성된 피니언기어(23)와, 상기 밸브바디(24)와 피니언기어(23) 사이에 설치되고 상기 결합홈(22)에 대응하는 결합부(25)가 그 하측에 형성된 인풋샤프트(21)로 구비된 자동차용 유압제어 밸브구조(20)에 있어서, 상기 인풋샤프트(21)의 중간부에 형성된 둘레편(27)의 하부에 형성된 V홈(28)과; 상기 밸브바디(24)의 상측 둘레면(29)에 양측으로 일부 절개된 슬립홈(30)과; 상기 V홈(28)에 대응하는 볼고정부(31)가 그 상측에 형성되고, 상기 볼고정부(31)로 볼(32)이 내장되며, 그 외측둘레면에서 돌출된 연결핀(33)이 형성된 볼하우징(34); 및 상기 볼하우징(34)의 하측과 밸브바디(24)의 내측에 지지되도록 형성된 탄성스프링(35)을; 포함하여 구성된다.In the accompanying drawings, Figure 2 is an exploded perspective view of the hydraulic control valve according to the present invention, Figure 3 is a combined cross-sectional view of the hydraulic control valve according to the present invention, the valve body 24, the torsion bar 26 is connected to the upper side An input pinion gear 23 having a coupling groove 22 formed therebetween, and a coupling portion 25 disposed between the valve body 24 and the pinion gear 23 and corresponding to the coupling groove 22. An automobile hydraulic control valve structure (20) provided with a shaft (21), comprising: a V groove (28) formed at a lower portion of a circumferential piece (27) formed at an intermediate portion of the input shaft (21); A slip groove 30 partially cut into both sides of the upper circumferential surface 29 of the valve body 24; A ball fixing part 31 corresponding to the V-groove 28 is formed on the upper side, and the ball fixing part 31 is built into the ball fixing part 31, and a connection pin 33 protruding from the outer peripheral surface thereof is formed. Ball housing 34; And an elastic spring (35) formed to be supported on the lower side of the ball housing (34) and the inside of the valve body (24). It is configured to include.

그리고, 상기 볼하우징(34)에 형성된 볼고정부(31)는 코킹처리되고, 상기 V홈(28)과 볼고정부(31)의 사이에 내설되는 볼(32)이 미끄러지도록 구성된다.Then, the ball fixing portion 31 formed in the ball housing 34 is caulking process, the ball 32 is built between the V groove 28 and the ball fixing portion 31 is configured to slide.

한편, 상기 밸브바디(24)의 상측 둘레면(29)에 형성된 슬롯홈(30)에 상기 볼하우징(34)에 형성된 연결핀(33)이 연결되어 가이드되도록 형성된다.Meanwhile, the connecting pin 33 formed in the ball housing 34 is connected to the slot groove 30 formed on the upper circumferential surface 29 of the valve body 24 so as to be guided.

기존의 자동차의 유압제어 밸브구조를 형성하는 인풋샤프트(21)에 V홈(28)과, 볼(32)이 내장된 볼하우징(34)과 탄성스프링(35)을 인풋샤프트(21)와 밸브바디(24)가 연결되는 사이에 형성하여 인풋샤프트(21)가 회전시 기존 피니언기어(23)와 연결된 토션바(26)에 의한 토오크 발생과 상기 인풋샤프트(21)의 회전으로 인해 인풋샤프트(21)의 둘레편(27) 하측에 형성된 V홈(28)을 따라 미끄러지는 볼(32)이 볼하우징(34)을 밀면서 탄성스프링(35)의 탄발력에 의해 추가로 토오크가 발생되도록 하는 것이다.The V shaft 28 and the ball housing 34 and the elastic spring 35 in which the V groove 28 and the ball 32 are built are formed in the input shaft 21 forming the hydraulic control valve structure of the existing vehicle. It is formed between the body 24 is connected when the input shaft 21 is rotated due to the torque generated by the torsion bar 26 connected to the existing pinion gear 23 and the input shaft 21 due to the rotation of the input shaft ( The ball 32, which slides along the V-groove 28 formed below the circumferential piece 27 of 21, pushes the ball housing 34 so that additional torque is generated by the elastic force of the elastic spring 35. .

이상과 같은 자동차의 유압제어 밸브 구조는 밸브바디와 피니언기어가 연결되는 사이로 결합되는 인풋샤프트와의 연결부위에 복수의 볼이 내장된 볼하우징을 형성하고 그 하측으로 볼하우징과 밸브바디의 내측 둘레부에 지지되는 탄성스프링을 형성하여 차량의 중,고속 주행시 이중으로 토오크를 발생시켜 조향력을 무겁게 조절함으로써 운전자에게 안전감을 주고 승차감을 향상시킬 수 있는 자동차용 유압제어 밸브구조를 제공하게 된다.The hydraulic control valve structure of the vehicle as described above forms a ball housing in which a plurality of balls are built in a connection portion with an input shaft coupled between a valve body and a pinion gear, and below the inner circumference of the ball housing and the valve body. Forming an elastic spring supported on the part to generate a torque in the middle and high speed of the vehicle to double the steering force to adjust the steering force to provide a safety control valve structure for the vehicle to give a sense of safety to the driver.

Claims (2)

밸브바디와, 토션바가 연결되고 상측에 결합홈이 형성된 피니언기어와, 상기 밸브바디와 피니언기어 사이에 설치되고 상기 결합홈에 대응하는 결합부가 그 하측에 형성된 인풋샤프트로 구비된 자동차용 유압제어 밸브구조에 있어서,A hydraulic control valve for an automobile provided with a pinion gear having a valve body, a torsion bar connected thereto, and a coupling groove formed at an upper side thereof, and an input shaft disposed between the valve body and the pinion gear and corresponding to the coupling groove formed at a lower side thereof. In structure, 상기 인풋샤프트의 중간부에 형성된 둘레편의 하부에 형성된 V홈과;A V groove formed at a lower portion of a circumferential piece formed at an intermediate portion of the input shaft; 상기 밸브바디의 상측 둘레면에 양측으로 일부 절개된 슬립홈과;A slip groove partially cut into both sides of an upper circumferential surface of the valve body; 상기 V홈에 대응하는 볼고정부가 그 상측에 형성되고, 상기 볼고정부로 볼이 내장되며, 그 외측둘레면에서 돌출된 반력핀이 형성된 볼하우징; 및A ball housing in which a ball fixing portion corresponding to the V groove is formed at an upper side thereof, a ball is built into the bowl fixing portion, and a reaction force pin protruding from an outer circumferential surface thereof is formed; And 상기 볼하우징의 하측과 밸브바디의 내측에 지지되도록 형성된 탄성스프링을; 포함하여 차량의 중,고속 주행시 조향력을 조절케 하는 것을 특징으로 하는 자동차용 유압제어 밸브구조.An elastic spring formed to be supported by the lower side of the ball housing and the inner side of the valve body; Including a vehicle hydraulic control valve structure, characterized in that to adjust the steering force during high-speed driving. 제 1항에 있어서, 상기 볼하우징에 형성된 볼고정부는 코킹처리되고, 상기 V홈과 볼고정부의 사이에 내설되는 볼이 미끄러지는 것을 특징으로 하는 자동차용 유압제어 밸브구조.2. The hydraulic control valve structure for an automobile according to claim 1, wherein the ball fixing portion formed in the ball housing is caulked, and a ball installed between the V groove and the ball fixing portion slips.
KR1019970046701A 1997-09-11 1997-09-11 Pressure control valve construction for automobile KR100264910B1 (en)

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