KR0133300Y1 - Rotary valve for steering - Google Patents

Rotary valve for steering Download PDF

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Publication number
KR0133300Y1
KR0133300Y1 KR2019950049071U KR19950049071U KR0133300Y1 KR 0133300 Y1 KR0133300 Y1 KR 0133300Y1 KR 2019950049071 U KR2019950049071 U KR 2019950049071U KR 19950049071 U KR19950049071 U KR 19950049071U KR 0133300 Y1 KR0133300 Y1 KR 0133300Y1
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KR
South Korea
Prior art keywords
input shaft
valve body
rotary valve
opened
steering
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KR2019950049071U
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Korean (ko)
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KR970036862U (en
Inventor
변종식
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정몽원
만도기계주식회사
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Priority to KR2019950049071U priority Critical patent/KR0133300Y1/en
Publication of KR970036862U publication Critical patent/KR970036862U/en
Application granted granted Critical
Publication of KR0133300Y1 publication Critical patent/KR0133300Y1/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
    • B62D5/083—Rotary valves
    • B62D5/0837—Rotary valves characterised by the shape of the control edges, e.g. to reduce noise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/02—Control of vehicle driving stability

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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

본고안은 자동차의 중,고속 및 선회시 압력상승토르크(Torgue)를 비례적으로 변화하여 운전자에게 디렉트 필링(Direct feeling)을 부여하여 안정감을 줄수 있도록한 로타리밸브의 구조에 관한 것이다.This proposal relates to the structure of a rotary valve that provides a sense of stability by giving direct feeling to the driver by proportionally changing the pressure rise torque (Torgue) in the middle, high speed and turning of the vehicle.

본고안은 로타리밸브의 하우징 내부에 리턴공이 형성된 입력축과 밸브바디의 각요홈 입력축과 밸브바디를 조립하되 입력축과 밸브바디의 각요홈 양측모서리를 제1,2,3,4,제어부로 되게 에찌(edge)시켜 일부 불균등 피치로 배치하여 오리피스면적을 변화시킬 수 있도록 하므로서 유압상승의 토르크를 비례적으로 상승시켜 중고속이나 선회시 운전자에게 디렉트 필링(direct feeling)을 부여하여 조향안정감을 향상시킬 수 있도록 한것이 그 특징이다.This paper assembles the input shaft with the return hole formed inside the housing of the rotary valve and the main shaft of the valve body and the valve body, but the edges of both sides of the input shaft and the main groove of the valve body become the first, second, third, and four control parts. by placing it at some uneven pitch to change the orifice area, and increasing the torque of the hydraulic rise proportionally to give the driver direct feeling at high speed or turning to improve steering stability. One feature is that.

Description

자동차용 파워스티어링(Power Steering)로타리 밸브(Rotary Valve)의 구조Power Steering Rotary Valve Structure

제1도는 본고안이 적용된 로타리 밸브의 단면도.1 is a cross-sectional view of the rotary valve to which the present proposal is applied.

제2도는 본고안의 오리피스면적변화 단면도.2 is a cross-sectional view of the orifice area change in the present article.

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

1 : 로타리 밸브 3 : 입력축1: Rotary Valve 3: Input Shaft

4 : 밸브바디 10 : 제1제어부에찌4: valve body 10: first control buchi

11 : 제2제어부에찌 12 : 제3제어부에찌11: second control buchi 12: third control buchi

본고안은 자동차의 파워스티어링용 로타리밸브에 관한 것으로서 특히 자동차의 중,고속 및 선회시 압력상승토르크(Torgue)를 비례적으로 변화하여 운전자에게 디렉트 필링(Direct feeling)을 부여하여 안정감을 줄수 있도록한 로타리밸브의 구조에 관한 것이다.This proposal relates to a rotary valve for power steering of a vehicle. Especially, it is possible to give the driver a direct feeling by giving a direct feeling by changing the pressure rise torque in proportion to the medium, high speed and turning of the vehicle. It relates to the structure of the rotary valve.

일반적으로 자동차용 파워스티어링 로타리밸브 하우징 내부에 조향핸들의 회전력을 전달하는 입력축과 밸브바디를 결합한 후 조향핸들의 회전에 따른 입력축 비틀림시 펌프에서 유입되는 오일을 좌,우실린더로 보내어 자동차의 조향을 적은 힘으로 부드럽게 할 수 있도록 한것은 주지된 사실이다.In general, after combining the input shaft and the valve body which transmits the steering wheel's rotational force inside the automotive power steering rotary valve housing, the oil flowing from the pump is sent to the left and right cylinders when the input shaft is twisted according to the rotation of the steering wheel. It is well known that it can be smoothed with little effort.

그러나 종래의 파워스티어링 로타리밸브는 하우징 내부에 리턴공이 형성된 입력축과 오일을 공급할 수 있도록 한 프레셔포트 및 좌우실린더로 보내는 좌,우실린더유입공이 형성된 밸브바디를 조립하여, 입력축을 좌,우회전시킴에 따라 프레셔포트로 유입된 오일을 좌,우실린더유입공을 통해 동력실린더의 좌,우실린더로 보내 파워스티어링 할 수 있도록 하였다.However, the conventional power steering rotary valve assembles the input shaft formed with the return hole in the housing and the valve body formed with the left and right cylinder inlet holes sent to the pressure port and the left and right cylinders to supply oil, and rotates the input shaft left and right. The oil flowed into the pressure port was sent to the left and right cylinders of the power cylinder through the left and right cylinder inlet holes for power steering.

그런데 상기와 같은 로타리밸브는 입력축의 요홈과 밸브바디의 요홈이 어긋난 상태로 조립하여 입력축회전시 프레셔포트에서 유입된 오일을 입력축과 밸브바디의 각 요홈을 동시에 열어 동력실린더의 좌,우실린더로 보내게 되므로서 유압상승 토르크가 비례적으로 상승하지 않아 중고속시 및 선회시 운전자로 하여금 불안감을 초래하게 되는 문제점등이 야기되었다.However, the rotary valve as described above is assembled with the groove of the input shaft and the groove of the valve body disassembled, and when the input shaft rotates, the oil flowing from the pressure port is opened at the same time by opening the grooves of the input shaft and the valve body to the left and right cylinders of the power cylinder. As a result, the hydraulic rise torque does not increase proportionally, causing problems such as causing anxiety to the driver during high speed and turning.

본고안은 상기한 종래의 제문제점등을 해결하기 위하여 안출한 것으로서 본고안의 그주된 목적으로 로타리밸브의 하우징 내부에 리턴공이 형성된 입력축과 밸브바디를 조립하되 입력축과 밸브바디의 각 요홈 양측모서리를 제1,2,3,4,제어부로 되게 에찌(edge)시켜 일부 불균형 피치로 배치하여 오리피스면적을 변화시킬 수 있도록 하므로서 유압상승의 토르크를 비례적으로 상승시켜 중고속이나 선회시 운전자에게 디렉트 필링(direct feeling)을 부여하여 조향안정감을 향상시킬 수 있도록 한것이 그 특징이다.This paper is designed to solve the above-mentioned problems. The main purpose of this paper is to assemble the input shaft and the valve body with the return hole formed inside the housing of the rotary valve. 1, 2, 3, 4, and the control section is edged so that the orifice area can be changed by arranging it at some unbalanced pitch, so that the torque of hydraulic rise is increased proportionally, and the direct peeling to the driver at high speed or turning It is characterized by the direct feeling to improve steering stability.

상기의 목적을 달성할 수 있는 본고안을 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.When described in detail based on the accompanying drawings that can achieve the above object as follows.

제1도는 본고안이 적용된 로타리 밸브의 단면도이고, 제2도는 본고안의 오리피스면적변화 단면도이다.1 is a cross-sectional view of the rotary valve to which the present invention is applied, and FIG. 2 is a cross-sectional view of the orifice area change of the present invention.

제1도 및 제2도에서와 같이 하우징(2)의 내부에 리턴공(5)이 형성되고 외주면에 다수의 요홈(6)이 형성된 입력축(3)과 프레셔포트(7)가 형성되고 좌,우실린더유입공(8)(8')이 형성되며 내주면에 다수의 요홈(9)을 형성한 밸브바디(4)를 상호조립하여 로타리밸브(1)를 구성한다.As shown in FIGS. 1 and 2, an input shaft 3 and a pressure port 7 having a return hole 5 formed in the housing 2 and a plurality of grooves 6 formed on the outer circumferential surface thereof are formed. The right cylinder inlet hole (8) (8 ') is formed to form a rotary valve (1) by mutually assembling the valve body (4) formed a plurality of grooves (9) on the inner peripheral surface.

이때 상기 입력축(3)의 요홈(6)과 밸브바디(4)의 요홈(9)은 입력축(3)의 좌,우회전에 따라 프레셔포트(7)에서 유입된 오일을 좌,우실린더유입공(8)(8')으로 보낼수 있도록 결합한다.At this time, the groove 6 of the input shaft (3) and the groove (9) of the valve body (4) is the left and right cylinder inlet hole (the oil flows from the pressure port (7) according to the left and right rotation of the input shaft (3) 8) Combine to send to (8 ').

그리고 상기 입력축(3)과 밸브바디(4)의 각요홈(6)(9)에는 제1제어부에찌(10)를 6곳에 형성하고, 제2제어부에찌(11)는 그곳에 형성하여 제3제어부에찌(12)및 제4제어부에찌(13)는 각각4곳에 형성하여 구성된것이다.In the grooves 6 and 9 of the input shaft 3 and the valve body 4, the first control gear 10 is formed at six locations, and the second control gear 11 is formed at the third control gear. (12) and the 4th control part 13 are formed in four places, respectively.

이와같이 구성된 본고안의 로타리밸브(1)는 하우징(2)내부의 밸브바디(4)를 통한 프레셔포트(7)로 유입된 오일은 조향핸들의 조향에 의해 비틀어지는 입력축(3)과 밸브바디(4)는 중립위치에 있을때 제2도와 같은 형태로 되어 있다.In this configuration, the rotary valve 1 includes the input shaft 3 and the valve body 4 in which oil introduced into the pressure port 7 through the valve body 4 in the housing 2 is twisted by steering of the steering wheel. ) Is shaped like Figure 2 when in the neutral position.

그리고 입력축(3)을 좌회전할시에는 입력축(3)이 시계반대방향으로 회전하여 좌실린더유입공(8)을 개방하고 우실린더유입공(8')과 입력축(3)의 리턴공(5)은 차단된 상태가 되어 좌실린더유입공(8)을 통하여 동력실린더의 좌실린더로보내 작동을 원화롭게 된다.When the input shaft 3 is turned left, the input shaft 3 rotates counterclockwise to open the left cylinder inlet hole 8, and the right cylinder inlet hole 8 ′ and the return hole 5 of the input shaft 3. Is blocked so that the operation is sent to the left cylinder of the power cylinder through the left cylinder inlet hole (8).

한편 우회전할시에는 입력축(3)이 시계방향으로 회전하여 우실린더유입공(8')을 개방하고, 좌실린더유입공(8)과 입력축(3)의 리턴공(5)을 차단하여 피치를 일부 불균등피치로 배치하여 동력실린더의 우실린더로 오일을 보내 작동을 원화롭게 한다.On the other hand, when turning to the right, the input shaft 3 rotates clockwise to open the right cylinder inlet hole 8 'and blocks the left cylinder inlet hole 8 and the return hole 5 of the input shaft 3 to adjust the pitch. Placed at some uneven pitch, oil is sent to the right cylinder of the power cylinder to facilitate operation.

그리고 중립일때에는 하우징(2) 내부에 조립된 입력축(3)과 밸브바디(4)가 정위치에 있게 되어 입력축(3)의 리턴공(5)을 개방한 상태로 위치되게 되하므로서 프레셔포트(7)에서 유입된 오일이 좌,우실린더 유입공으로 가지않고 그대로 리턴하게 되는 것이다.In the neutral state, the input shaft 3 and the valve body 4 assembled in the housing 2 are in the correct position, and the pressure port (3) is positioned in the state of opening the return hole 5 of the input shaft 3. The oil introduced in 7) does not go to the left and right cylinder inlet holes, but returns.

이상 설명한 바와 같이 본고안은 종래의 균등피치에서 일부균등피치로 배치하면서 제1제어부에찌 6곳을 형성하고 제2제어부에찌 2곳을 형성하여 제3,4제어부에찌를 4곳에 형성하여 오리피스면적 변화를 주어 유압상승 토르크의 비례적 상승으로 중고속시나 선회시 운전자에게 디렉트 필링을 부여하여 안정된 조향감을 줄수 있도록한 매우 유용한 고안이다.As described above, this proposal forms six parts of the first control part, two parts of the second control part, and two thirds and four parts of the third part of the control part by arranging the parts at the same pitch. It is very useful design to give stable steering feeling by giving direct peeling to driver at high speed or turning with proportional increase of hydraulic rising torque.

Claims (1)

하우징(2) 내부에 입력축(3)과 밸브바디(4)를 결합하되, 입력축(3)과 밸브바디(4)의 요홈(6)(9)은 프레셔포트(7)로부터 유입된 좌,우 실린더 유입공(8)(8')으로 보내 조향을 부드럽게 할 수 있도록한 파워스티어링 로타리 밸브(1)에 있어서, 좌,우 조타시 유압이 어느 한쪽방향으로 흐를때, 그 반대쪽은 막힌채로 있으면서 개방되는 쪽으로 서서히 열릴 수 있도록 하기위해, 상기 입력축(3)에 형성된 8개의 요홈(6) 모서리와, 밸브바디(4)에 형성한 8개의 요홈(9) 모서리에 오리피스 형성을 위한 제어에찌를 형성하되, 입력축(3)의 회전시 가장 조금 열리는 제1제어에찌(10)를 6곳에 형성하고, 가장많이 열리는 제3제어부에찌(12)를 4곳에 형성하며, 중간정도로 열리는 제2제어부에찌(11)를 2곳에 형성하고, 닫혀있는 제4제어부에찌(13)를 4곳에 형성하여서 구성함을 특징으로 하는 자동차용 파워스티어링 로타리 밸브 구조.The input shaft 3 and the valve body 4 are coupled to the inside of the housing 2, but the grooves 6 and 9 of the input shaft 3 and the valve body 4 are left and right introduced from the pressure port 7. In the power steering rotary valve (1), which is sent to the cylinder inlet (8) (8 ') to smooth the steering, when the hydraulic pressure flows in either direction during left and right steering, the other side is opened while being blocked. In order to be able to slowly open to the side, the eight grooves (6) corners formed in the input shaft (3) and the eight grooves (9) formed in the valve body (4) to form a control edge for forming the orifice When the input shaft 3 rotates, the first control edge 10 which is opened the least is formed in six places, and the third control edge 12 which is opened the most is formed in four places, and the second control edge which is opened in the middle is opened. Is formed in two places, and is formed by forming four closed control parts (13) in four places Automotive power steering rotary valve structure.
KR2019950049071U 1995-12-27 1995-12-27 Rotary valve for steering KR0133300Y1 (en)

Priority Applications (1)

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KR2019950049071U KR0133300Y1 (en) 1995-12-27 1995-12-27 Rotary valve for steering

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KR2019950049071U KR0133300Y1 (en) 1995-12-27 1995-12-27 Rotary valve for steering

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KR970036862U KR970036862U (en) 1997-07-26
KR0133300Y1 true KR0133300Y1 (en) 1999-01-15

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KR2019950049071U KR0133300Y1 (en) 1995-12-27 1995-12-27 Rotary valve for steering

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